CN2523561Y

CN2523561Y - Chain detacher

Info

Publication number: CN2523561Y
Application number: CN 01276802
Authority: CN
Inventors: 唐建强
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-08
Filing date: 2001-12-08
Publication date: 2002-12-04
Anticipated expiration: 2011-12-08

Abstract

The utility model relates to a chain disassembly tool. The existing chain disassembly method is that the chain is punched by a hand hammer and a punched by virtue of a vice or a padding iron, with non-convenient operation and low efficiency. The utility model is characterized in that a top rod (2) passes through the middle part of a transverse beam (3); the upper end of the top rod (2) is provided with a rotary handle (6) while the lower end of the top rod (2) is provided with a top tip (9); a nut (8) is screwed on the lower part of the screw; two ends of the transverse beam (3) are respectively axially connected with a pull arm (4); the other end of the pull arm (4) is axially connected with a connecting part (10) with the nut (8); the internal side of the pull arm (4) is provided with a hook head (5). The utility model has the advantages of smart design, novel structure, convenient operation and effectively improving efficiency when in use.

Description

The chain extracting tool

[technical field]

The utility model relates to a kind of maintenance tool of chain, a kind of specifically chain extracting tool.

[background technology]

Chain drive is mechanically operated a kind of important form, but, the wearing and tearing of chain are inevitable in the transmission process, the chain elongation that is caused by wearing and tearing and lax, usually can not guarantee that transmission accurately cooperates, and is difficult to satisfy instructions for use, in this case, chain need be disassembled and block, be about to chain rivet and take off from the chain nodal plate so that repair; In addition, as required, under some other situation, can disassemble chain equally and block.Because the chain rivet two ends are through riveting, it is very tight with cooperating of chain nodal plate, and the practice commonly used at present is by bench vice or parallels, with hand hammer and punching pin it is swept away, and operation inconvenience, efficient is low.

[summary of the invention]

The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome existing technological deficiency, and a kind of chain extracting tool of handled easily is provided, to improve the efficient of dismounting chain.

The technical scheme that the utility model is taked is: the chain extracting tool, it is characterized in that a push rod passes the middle part of crossbeam, and its upper end is provided with swing handle, and the lower end is provided with top, and a nut is screwed onto the push rod bottom; The torque arm that respectively is coupling of the two ends of crossbeam, the connector that is coupling between the other end of torque arm and the nut, the torque arm inboard is provided with gib head.Swing handle is used for push rod is applied moment of torsion, push rod is rotated in nut realizing stretch, and also can make it freely to slide at the crossbeam middle part to the push rod application of force, to strut or to draw in torque arm by nut and connector; During use, chain is placed the upper surface of gib head, make chain rivet with top corresponding, the turn swing handle then can eject chain rivet, and is convenient and swift.

Described chain extracting tool is characterized in that describedly toply can being made as one with push rod, also can be assemblied in the push rod lower end; Socket back-moving spring in push rod top is provided with packing ring between back-moving spring and the crossbeam.The top push rod lower end that is assemblied in, easy to replace and maintain, to be fit to the chain of dismounting different size; Back-moving spring can promote push rod and move up, and the torque arm that is strutted is drawn in automatically.

Described chain extracting tool is characterized in that torque arm is provided with handle, can grip swing handle and handle simultaneously with a hand when operator uses, and is convenient to the push rod application of force, and breach is offered in the end of gib head, and the shape of this breach and size and chain rivet adapt.

The utility model will be conceived cleverly and be applied to the chain extracting tool, and novel structure is convenient to operation, can effectively raise the efficiency during use.

[description of drawings]

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the upward view of torque arm shown in Figure 1, gib head.

[specific embodiment]

As shown in the figure, crossbeam 3 is bent by steel plate and forms, the through hole that push rod 2 lower ends are passed back-moving spring 1, packing ring 7 and crossbeam middle part successively is spirally connected with the nut 8 that is positioned at the crossbeam downside, the upper end of two symmetrically arranged torque arm 4 is coupling respectively at the two ends of crossbeam, be connected with connector 10 between its lower end and the nut, this connector is a laminated structure, and is stressed evenly for making each parts, connector is symmetricly set on the both sides, front and back of nut and torque arm; Gib head 5 ends that are connected as a single entity with torque arm have size and shape and the corresponding breach 12 of chain rivet; The push rod lower end hard that is spirally connected is top 9, and a swing handle 6 is worn in its upper end, and the handle 11 that is used with swing handle is connected in the torque arm on right side.

During use, counterclockwise rotate swing handle, push rod rises, top contracting to the nearer position of distance nut, make distance between top and the gib head greater than the height of chain rivet,, overcome the elastic force of back-moving spring with hand-tight swing handle and the handle held, make push rod strut torque arm by nut and connector, the chain that needs can be disassembled places top lower end; Then remove the application of force to swing handle and handle, under the effect of back-moving spring, push rod resets, and then draws torque arm in by nut and connector, chain is fixed on the upper surface of gib head, and it is top that chain rivet is aimed at; The swing handle of clockwise direction turn afterwards can eject chain rivet, finishes once dismounting.

Claims

1, chain extracting tool is characterized in that a push rod (2) passes the middle part of crossbeam (3), and its upper end is provided with swing handle (6), and the lower end is provided with top (9), and a nut (8) is screwed onto the push rod bottom; The torque arm (4) that respectively is coupling of the two ends of crossbeam (3), the connector (10) that is coupling between the other end of torque arm (4) and the nut (8), torque arm (4) inboard is provided with gib head (5).

2, chain extracting tool according to claim 1 is characterized in that described top (9) can be made as one with push rod, also can be assemblied in the push rod lower end; Push rod (2) top socket back-moving spring (1) is provided with packing ring (7) between back-moving spring (1) and the crossbeam (3).

3, chain extracting tool according to claim 1 and 2 is characterized in that torque arm (4) is provided with handle (11), and breach (12) is offered in the end of gib head (5).