Abstract

The present disclosure relates to a planetary rolling micro-jacking device comprising a bottom plate, a rotating plate and a top plate mounted on a central shaft. There are at least three planetary thread rollers provided between the rotating and the top plates. The rotating and the top plates are provided with multiple annular tooth grooves. The annular tooth grooves of the rotating plate and the annular tooth grooves of the top plate engage with the thread of the planetary thread rollers. The planetary thread rollers roll between the rotating and the top plates, and rotate around the central shaft.

IPC Classes  ?

• F16H 13/08 - Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion with balls or with rollers acting in a similar manner
• G12B 5/00 - Adjusting position or attitude, e.g. level, of instruments or other apparatus, or of parts thereofCompensating for the effects of tilting or acceleration, e.g. for optical apparatus

Abstract

The present disclosure relates to a DBB forced sealing valve and an operating mechanism, including a valve body, a valve seat, a valve core arranged in the valve body, upper sealing member driving part and lower sealing member driving part arranged in the valve body and located on either side of the valve core, and the sealing members arranged between the valve seats and the upper sealing member driving part and the lower sealing member driving part. Wherein, the upper sealing member driving part and the lower sealing member driving part can move along the rotation axis of the valve core, and the upper sealing member driving part and the lower sealing member driving part drive the sealing members to press against or to retract from the valve seats.

IPC Classes  ?

• F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfacesPackings therefor
• F16K 5/20 - Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
• F16K 35/10 - Means to prevent accidental or unauthorised actuation with locking caps or locking bars
• F16K 27/06 - Construction of housingsUse of materials therefor of taps or cocks
• F16K 5/08 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary Details

Abstract

Disclosed are a DBB forced seal valve and an operation device. The DBB forced seal valve comprises a body (10), a seat (20), a valve core (40) arranged in the body (10), an upper disk driving member (50) and a lower disk driving member (60) arranged in the body (10) and positioned on two sides of the valve core (40), and sealing disks (70) arranged between the seat (20), the upper disk driving member (50) and the lower disk driving member (60), wherein the upper disk driving member (50) and the lower disk driving member (60) can move along the rotation axis of the valve core (40), and the upper disk driving member (50) and the lower disk driving member (60) drive the sealing disks (70) to abut against or to be separated from the seat (20).

IPC Classes  ?

• F16K 5/20 - Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
• F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfacesPackings therefor
• F16K 31/44 - Mechanical actuating means

Abstract

A dual-locking body transmission operation device, comprising a rotating body (10), a driving rotary plate (20), and a stroke positioning seat (30). The rotating body (10) reciprocatingly rotates within a set stroke; the driving rotary plate (20) is provided with a first overrunning slot (21) and a second overrunning slot (22); the rotating body (10) is provided with a first through hole (11) and a second through hole (12); a first locking body (13) is provided in the first through hole (11), and a second locking body (14) is provided in the second through hole (12); the stroke positioning seat (30) is provided with a forward positioning recessed hole (31) and a backward positioning recessed hole (32).

IPC Classes  ?

• F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfacesPackings therefor

Abstract

Disclosed is a double-forced seal ball valve. The double-forced seal ball valve comprises a valve ball (10), a valve rod (11) and a valve body (71). The double-forced seal ball valve is equipped with a closing sealed valve seat (20) and an opening sealed valve seat (30). The closing sealed valve seat is clasped with the valve ball at a closing position of the valve ball, and the opening sealed valve seat is clasped with the valve ball at an opening position of the valve ball. Also disclosed is a rotary clutch operating device. The rotary clutch operating device is equipped with a driving rotary disk (50) and a stroke positioning seat (60). A first through hole (51) is formed in the driving rotary disk, and a first locking body (52) is arranged in the first through hole. The valve ball is equipped with a recessed hole (13) corresponding to the first locking body at a circumferential position, and the stroke positioning seat is equipped with a surpassing groove (62) corresponding to the first locking body.

IPC Classes  ?

• F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfacesPackings therefor
• F16K 5/08 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary Details

Abstract

The present disclosure relates to a cage reset planetary roller screw device comprising a male thread member provided with a male thread and a female thread member provided with a female thread, a number of planetary rollers disposed between the male thread and the female thread. The planetary rollers are disposed between the male thread and the female thread through a cage, and the planetary rollers are disposed in roller retaining pockets of the cage. The side surfaces of the cage are provided with convex ends. The male thread member and/or the female thread member are provided with limit blocks that are in contact with the convex ends of the cage in the circumferential direction of the cage.

IPC Classes  ?

• F16K 5/20 - Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
• F16H 25/22 - Screw mechanisms with balls, rollers, or similar members between the co-operating partsElements essential to the use of such members
• F16K 31/53 - Mechanical actuating means with toothed gearing

Abstract

The disclosure relates to a valve seat driven forced seal ball valve including a valve body, a first seat, a ball and a stem. The stem drives the ball to rotate between an open and a closed positions. The stem also drives the first seat towards and away from the ball. When the ball is in closed position, the first seat presses against the ball to achieve a forced seal. The first seat is driven towards and away from the ball by a first seat drive ring. The first seat drive ring is provided with female threads and the first seat is provided with male threads. The first drive ring drives the first seat towards and away from the ball by a screw connection.

IPC Classes  ?

• F16K 5/20 - Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
• F16K 31/53 - Mechanical actuating means with toothed gearing

Abstract

A planetary roller threaded device capable of being restored by means of a holder, comprising an outer threaded part (10) provided with outer threads (11) and an inner threaded part (20) provided with inner threads (21). A plurality of planetary rollers (31) are provided between the outer threads and the inner threads; the planetary rollers (31) are arranged between the outer threads and the inner threads by means of a holder (30), and the planetary rollers (31) are arranged in roller holding holes (33) of the holder (30); the end surface of the holder (30) is provided with a convex edge (36, 37); the outer threaded part (10) and/or the inner threaded part (20) are equipped with a threaded collision block (12, 22); and the threaded collision block touches the convex edge of the holder (30) in the peripheral direction of the holder (30). According to the present planetary roller threaded device, the outer threads and the inner threads are utilized to bear a one-way rotary load, and the holder is pushed to accurately restore the planetary rollers during a non-load rotation trajectory, so that the planetary rollers may be maintained at the correct working starting positions between the outer threads and the inner threads, and thus a planetary roller spiral device is guaranteed to be in a good working state.

IPC Classes  ?

• F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfacesPackings therefor
• F16K 5/20 - Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces

Abstract

A valve base driven forced sealing ball valve, comprising a valve body (10), a first valve base (20), a valve ball (30), and a valve rod (40). The valve rod (40) drives the valve ball (30) to conduct a reciprocating rotation between switch positions, and the valve rod (40) further drives the first valve base (30) to reciprocate towards the valve ball (30). When the valve ball (30) is closed, the first valve base (20) is locked with the valve ball (30) to achieve forced sealing. The first valve base (20) is driven by a first valve base driving ring (50) to reciprocate towards the valve ball (30). The first valve base driving ring (50) is provided with internal threads. The first valve base (20) is provided with external threads. The first valve base driving ring (50) drives the first valve base (20) to reciprocate towards the valve ball (30) by means of the threaded connection.

IPC Classes  ?

• F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfacesPackings therefor

Abstract

A planetary rolling micro-clearance top pressure device. The planetary rolling micro-clearance top pressure device comprises a chassis (10), a turn plate (20), and a top plate (30) which are mounted on a center shaft (36). At least three planetary thread rollers (40) are provided between the turn plate (20) and the top plate (30). A plurality of annular tooth sockets (21, 31) is formed in the turn plate (20) and the top plate (30). The annular tooth sockets (21) of the turn plate (20) and the annular tooth sockets (31) of the top plate (30) are threadedly engaged with the planetary thread rollers (40). The planetary thread rollers (40) roll between the turn plate (20) and the top plate (30) and rotate surround the center shaft (36).

IPC Classes  ?

• G12B 5/00 - Adjusting position or attitude, e.g. level, of instruments or other apparatus, or of parts thereofCompensating for the effects of tilting or acceleration, e.g. for optical apparatus

Abstract

The invention relates to a mechanical energized sealing ball valve comprising a seat, a ball assembly, and a valve stem. The ball comprises a ball and a sealing member. The valve stem drives the ball to rotate between open position and close position. When the ball reaches the close position, the sealing member jacks up from the ball to press and sit against the seat. The invention has the advantages that: the valve has a compact structure, the friction-free on/off is achieved, the mechanical energized sealing force is even and reliable, the ball is retracted and locked in the opening position to protect against turbulence-induced damage, low operating torque, the open/close operation is rapid, and the valve stem seal operates simply and reliably.

IPC Classes  ?

• F16K 5/20 - Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
• F16K 31/53 - Mechanical actuating means with toothed gearing