Abstract

A lifting annular sling with a clamping structure, the lifting annular sling comprising an annular sling body (1), a fixing sleeve (2), a sliding ring (3), a hook (4), a guide sleeve (5), a pressing rod (6), a protective cover (7), a spring (8), a fixing and supporting block (9), an embedding plate (10), a positioning rod (11), a connecting column (12), a clamping block (13), an embedding groove (14), a rotating limiting bar (15), a positioning hole (16), a rotating shaft (17) and a bearing (18). The lifting annular sling with a clamping structure is installed by means of the clamping structures at two ends, and after installation, the clamping block (13) and a clamping groove are used for limiting, and the embedding plate (10) is blocked by means of the rotating limiting bar (15), such that two ends of the lifting annular sling are installed; during assembly and disassembly, merely by means of the rotation of the rotating limiting bar (15) and the clamping the clamping block (13) in the clamping groove, the operation is relatively simple, and the convenience is improved; and by means of the arrangement of the sliding ring (3) and the hook (4), the lifting annular sling can hang some goods that can be hooked, providing certain convenience for hanging.

IPC Classes  ?

• B66C 1/18 - Band-type slings
• B66C 1/14 - Slings with hooks

Abstract

A high-strength, acid-resistant lifting sling having an excellent tensile effect, comprising a lifting sling base layer (1), a nylon fiber layer (2), a connecting strap (3), a polyester fiber yarn (4), a high-performance viscose fiber layer (5), an epoxy resin layer (6), a waterproof canvas (7), a wear-resistant layer (8), a wear-resistant protrusion (9), a polypropylene fiber layer (10), a high-strength polyester yarn (11), a reinforcing yarn (12), an epoxy resin coating layer (13), and a wear-resistant layer (14). The structure is reasonable, the wear resistance and resilience of the lifting sling are increased by the nylon fiber layer (2), the strength and fatigue resistance of the lifting sling are enhanced by the polyester fiber yarn (4) and the high-performance viscose fiber layer (5), the epoxy resin layer (6) and the epoxy resin coating layer (13) provide protection for either side of the lifting sling base layer (1) and, at the same time, provides the lifting sling with improved acid resistance and breakage resistance, the waterproof performance of the lifting sling is increased by the waterproof canvas (7), and connections within the lifting sling are enhanced by the connecting strap (3) inserted between the nylon fiber layer (2), the high-performance viscous fiber layer (5), and the epoxy resin layer (6), thus allowing the lifting sling to be provided with a high-strength characteristic.

IPC Classes  ?

• B66C 1/18 - Band-type slings
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 27/02 - Layered products essentially comprising synthetic resin in the form of fibres or filaments
• B32B 7/09 - Interconnection of layers by mechanical means by stitching, needling or sewing

Abstract

A combined gear rack, comprising a gear rack plate a) and a gear rack plate b). The gear rack plate a) and the gear rack plate b) are assembled with each other to form a whole; the gear rack plate a) comprises gear teeth and a placement strip; the gear teeth are mounted on the placement strip; a mounting groove is formed on the gear rack plate a); the placement strip is inserted into the gear rack plate a) by means of the mounting groove; the gear teeth are exposed to the outside of the gear rack plate a); a sliding groove is formed at the right side of the gear rack plate a); a pushing rod is mounted in the sliding groove; the pushing rod is connected to the tail of a fixed head; the fixed head is located at the outer side of the gear rack plate a); the structures of the gear teeth and the placement strip mounted on the gear rack plate b) are the same as those on the gear rack plate a); a connection hole of the fixed head is formed at the left side of the gear rack plate b); and a locking top rod is provided in the connection hole of the fixed head. The combined gear rack is formed by freely assembling and combining two gear rack plates, can be applicable for various different production requirements, and improves the production efficiency.

IPC Classes  ?

• F16H 55/26 - Racks
• F16H 19/04 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising a rack

Abstract

Disclosed in the present utility model is a dust cover having a debris removal function, comprising a cover body and a debris removal structure. A through hole is formed in the cover body, the cover body is hingedly provided with a flip lid at the position of the through hole, the edge of the flip lid is provided with a snap-fit groove, the debris removal structure is provided on the cover body and comprises a debris collection cavity and a debris removal groove. The present utility model has a reasonable structure, can effectively reduce dust adhesion to the dust cover by adding a debris removal structure, and is good in dustproof effect, convenient, practical, and low in cost.

IPC Classes  ?

• F16J 15/00 - Sealings