CN212311873U

CN212311873U - Adjustable chain wrench

Info

Publication number: CN212311873U
Application number: CN202020665009.5U
Authority: CN
Inventors: 肖国伟; 司亚东; 高宪君; 郑东升; 刘胜利; 杜占奎
Original assignee: China Tobacco Henan Industrial Co Ltd
Current assignee: China Tobacco Henan Industrial Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-01-08
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses a chain spanner with adjustable, including barrel, ejector pin, chain, first go-between, second go-between and regulation pole, wherein: an accommodating groove penetrates through the cylinder in the axial direction, the ejector rod is embedded in the accommodating groove, and the ejector rod can reciprocate along the axial direction of the accommodating groove; the adjusting rod is fixed on the outer circumferential surface of the cylinder body and can reciprocate along the axial direction of the accommodating groove; the first connecting ring is fixed on the outer circumferential surface of the cylinder body, and the first connecting ring and the adjusting rod are arranged oppositely; the second connecting ring is fixed at the top of the adjusting rod, and two opposite ends of the chain are respectively connected with the first connecting ring and the second connecting ring. Compared with the prior art, the utility model relates to an ingenious, safe and reliable, labour saving and time saving, the effect is showing in equipment assembling process.

Description

Adjustable chain wrench

Technical Field

The utility model relates to a hand tool technical field, especially a chain spanner with adjustable.

Background

The current spanner is single in practicability, and is either a solid wrench or a box spanner or an adjustable spanner, when a screw is installed or disassembled, the phenomenon of slipping is easily caused, so that a nut and a bolt are easily damaged, and meanwhile, certain labor intensity and corresponding difficulty are increased. When the cylindrical object needs to be disassembled, a heavy object tool such as a pipe wrench is also needed. Especially, in some narrow spaces with limited space positions, the common wrench is difficult to clamp related screws and nuts, and certain difficulty and inconvenience are brought to normal maintenance work. Especially, in some existing chain wrenches, only the distance and the position of the bolt are adjusted, and due to the limitation and the fixity of the length of the chain, the phenomenon of slipping is easily caused, and the using effect and the purpose of the chain wrench cannot be achieved.

Every section of chain at current chain spanner is the fixed length, and the circumference size of different screw cap or bolt and drum part is not of uniform size, and there is certain difference in the chain section length of integer and the circumference length of nut, bolt and drum part, and if the difference between the two is great, the chain just diminishes with drum part frictional force, the technical problem that the part is difficult to pull down.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a chain spanner with adjustable to solve narrow space among the prior art such as flange pad compress tightly etc. and the problem of fastener dismouting under the special environment.

The utility model provides a chain spanner with adjustable, including barrel, ejector pin, chain, first go-between, second go-between and regulation pole, wherein:

an accommodating groove penetrates through the cylinder in the axial direction, the ejector rod is embedded in the accommodating groove, and the ejector rod can reciprocate along the axial direction of the accommodating groove;

the adjusting rod is fixed on the outer circumferential surface of the cylinder body and can reciprocate along the axial direction of the accommodating groove;

the first connecting ring is fixed on the outer circumferential surface of the cylinder body, and the first connecting ring and the adjusting rod are arranged oppositely;

the second connecting ring is fixed at the top of the adjusting rod, and two opposite ends of the chain are respectively connected with the first connecting ring and the second connecting ring.

The adjustable chain wrench as described above, wherein preferably, the barrel is provided with assembling grooves at two ends of the accommodating groove, respectively, the assembling grooves are embedded with nuts, the axis of the nut coincides with the axis of the accommodating groove, the outer circumferential surface of the ejector rod is provided with external threads, and the ejector rod is connected to the inside of the nut through the external threads.

The adjustable chain wrench as described above, wherein preferably, an ejector block is fixed to an end of the ejector pin near the chain.

The adjustable chain wrench as described above, wherein preferably an end surface of the top block facing away from the jack rod forms a wave-like projection.

The adjustable chain wrench as described above, wherein preferably, an end of the carrier rod facing away from the chain is provided with a handle.

The adjustable chain wrench as described above, preferably, a protrusion is fixed on the outer circumferential surface of the barrel, the protrusion and the first connecting ring are symmetrically disposed, an inner threaded hole penetrates through the protrusion, an axis of the inner threaded hole is parallel to an axis of the accommodating groove, and the adjusting rod is screwed and fixed in the inner threaded hole.

Compared with the prior art, the utility model relates to an it is ingenious, safety and reliability, time saving and labor saving, the effect is showing in equipment fitting process, the unicity that replaces present spanner with the chain and the limitation at limited narrow spatial position, shorten moment, thereby reach the purpose at little space work, fine setting through the ejector pin, make the spanner be applicable to the part of different girths, most suitably install or dismantle the narrow screw of spatial distance or the nut, specially adapted pipeline valve flange pad front end nut compress tightly and dismantle, and be applicable to the size of different model screws and nut, also can dismantle and install the pipe use as the pipe tongs simultaneously in occasion a bit.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Description of reference numerals: 1-cylinder, 2-ejector rod, 3-chain, 4-first connecting ring, 5-second connecting ring, 6-adjusting rod, 7-accommodating groove, 8-nut, 9-ejector block, 10-handle and 11-lug.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, the embodiment of the present invention provides an adjustable chain wrench, which comprises a barrel 1, a top rod 2, a chain 3, a first connecting ring 4, a second connecting ring 5 and an adjusting rod 6, wherein:

an accommodating groove 7 penetrates through the cylinder body 1 in the axial direction, the inner diameter of the accommodating groove 7 is matched with the outer diameter of the ejector rod 2, the ejector rod 2 is embedded in the accommodating groove 7, and the ejector rod 2 can reciprocate along the axial direction of the accommodating groove 7; the ejector rod 2 can be adjusted in position, and can be fixed after the ejector rod 2 moves to a set position, so that the ejector rod can be used for ejecting objects needing to be detached and installed.

The adjusting rod 6 is fixed on the outer circumferential surface of the cylinder 1, and the adjusting rod 6 can move back and forth along the axial direction of the accommodating groove 7; the first connecting ring 4 is fixed on the outer circumferential surface of the barrel 1, and the first connecting ring 4 and the adjusting rod 6 are arranged oppositely; the second connecting ring 5 is fixed on the top of the adjusting rod 6, and two opposite ends of the chain 3 are respectively connected with the first connecting ring 4 and the second connecting ring 5. Because the chain 3 is equidistance equal length, sometimes ejector pin 2 with by need install or be can not in close contact with between the nut 8 of dismantling and the chain 3, cause the phenomenon of skidding, can adjust the lift of the regulation pole 6 of being connected with chain 3, finely tune position and distance each other, make it combine closely, ensure not skidding the phenomenon, use safe and reliable, labour saving and time saving, small and exquisite light.

The screw or nut and the related cylindrical object which need to be disassembled are sleeved in the irregular figure formed by the chain 3, the distance between the friction surface at the front end of the ejector rod 2 and the chain 3 is adjusted by lifting the ejector rod 2, and meanwhile, the lifting of the adjusting rod 6 connected with the chain 3 is adjusted, the position and the distance between the two are finely adjusted to be tightly combined, so that the wrench is suitable for parts with different circumferences.

Further, the barrel 1 in the both ends of holding tank 7 are the concave assembly groove that is equipped with respectively, the embedded nut 8 that is equipped with of assembly groove, the axis of nut 8 with the axis coincidence of holding tank 7, be equipped with the external screw thread on the outer periphery of ejector pin 2, ejector pin 2 passes through external screw thread threaded connection in the nut 8, through rotating ejector pin 2, reach the purpose that makes it remove along 1 axis direction of barrel to adjust the distance between the tip of ejector pin 2 and chain 3, be used for withstanding the object that needs the dismantlement and install.

Furthermore, the ejector rod 2 is fixed with the ejector block 9 at one end close to the chain 3, so that the contact area is increased, the contact friction force between the ejector block and a disassembled part is increased, meanwhile, the end face of the ejector rod 2 deviating from the ejector block 9 forms a wavy bulge, and the uneven end face is arranged at the top end of the ejector block 9 and used for increasing the friction force, so that the slipping phenomenon is further prevented.

Further, in order to facilitate the operation of the push rod 2 by an operator, a handle 10 is arranged at one end of the push rod 2 departing from the chain 3 and used for rotating the push rod 2 to move on the barrel 1.

Further, be fixed with lug 11 on the outer periphery of barrel 1, lug 11 with first connecting ring 4 symmetry sets up, it has the internal thread hole to run through on lug 11, the axis in internal thread hole with the axis of holding tank 7 is parallel, adjust 6 screw-thread fit of pole and be fixed in the internal thread hole. When the adjusting rod 6 is screwed or loosened, the second connecting ring 5 at the top only makes a circular motion, thereby prolonging and shortening the length distance of the chain 3. And finely adjusting the position and the distance between the chain 3 and the top block 9 to enable the chain and the top block to be tightly combined. Ensure the phenomenon of not skidding, use safe and reliable, labour saving and time saving, small and exquisite light.

The utility model discloses a working process does:

the screws or nuts to be removed and the associated cylindrical objects are fitted inside the irregular pattern formed by the chain 3. Meanwhile, one side of the adjusting rod 6 can be removed, the chain 3 passes through the second connecting ring 5, and then the chain is assembled and installed in place again. The distance between the friction surface at the front end of the top block 9 and the chain 3 is adjusted by rotating the handle, so that the friction surface and the chain are tightly combined and close to each other, and meanwhile, the distance between the chain 3 and an object needing to be disassembled is shortened as much as possible for more effective combination, so that the fine adjustment of the adjusting rod 6 can be carried out.

The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.

Claims

1. The utility model provides a chain spanner with adjustable, its characterized in that includes barrel, ejector pin, chain, first go-between, second go-between and adjusts the pole, wherein:

2. The adjustable chain wrench as claimed in claim 1, wherein the barrel has a mounting groove at each end of the receiving groove, a nut is embedded in the mounting groove, the axis of the nut coincides with the axis of the receiving groove, the top bar has an external thread on its outer circumference, and the top bar is connected to the nut via the external thread.

3. The adjustable chain wrench of claim 2, wherein a top block is secured to an end of the top bar proximate the chain.

4. The adjustable chain wrench of claim 3, wherein an end surface of the top block facing away from the top bar forms a wave-like projection.

5. An adjustable chain wrench as claimed in claim 2, in which the end of the carrier rod remote from the chain is provided with a handle.

6. The adjustable chain wrench as claimed in claim 1, wherein a protrusion is fixed on the outer circumferential surface of the barrel, the protrusion is symmetrically disposed with respect to the first coupling ring, an inner threaded hole is formed through the protrusion, the axis of the inner threaded hole is parallel to the axis of the receiving groove, and the adjusting rod is screwed into the inner threaded hole.