CN211541023U

CN211541023U - Chain type wrench

Info

Publication number: CN211541023U
Application number: CN201922011024.8U
Authority: CN
Inventors: 邓铁桥; 马辉
Original assignee: Yinlong New Energy Co Ltd; Zhuhai Guangtong Automobile Co Ltd
Current assignee: Yinlong New Energy Co Ltd; Zhuhai Guangtong Automobile Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-09-22
Anticipated expiration: 2029-11-20

Abstract

A chain type wrench comprises a locking chain, a fixed rod, a movable rod and a handle, wherein one end of the locking chain is rotatably connected with the fixed rod, the other end of the locking chain is rotatably connected with the movable rod, and the movable rod is sleeved on the fixed rod and slides along the fixed rod in the horizontal direction; a handle is arranged in the movable rod, and the movable rod and the fixed rod are connected in a locking or unlocking mode through the handle. The utility model discloses need not frequently trade the spanner, practice thrift the time of changing the instrument, improve work efficiency, a multiple instrument is replaced to an instrument simultaneously, purchase cost and administrative cost on the saving tool.

Description

Chain type wrench

Technical Field

The utility model belongs to the spanner field especially relates to a chain formula spanner.

Background

The spanner is a commonly used hardware tool, is generally used for screwing up non-circular workpieces such as nuts, nuts and the like, and has the advantages of convenience in operation, time saving, labor saving and the like.

The common open-end wrenches are all fixed in specification and size, and the open-end wrenches with different specifications and sizes are frequently replaced and used as required in the actual operation process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chain formula spanner to solve the technical problem of frequently changing the problem of spanner in the actual operation process.

In order to achieve the above object, the present invention provides a chain type wrench, which comprises:

a chain type wrench comprises a locking chain, a fixed rod, a movable rod and a handle, wherein one end of the locking chain is rotatably connected with the fixed rod, the other end of the locking chain is rotatably connected with the movable rod, and the movable rod is sleeved on the fixed rod and slides along the fixed rod in the horizontal direction;

a handle is arranged in the movable rod, and the movable rod and the fixed rod are locked or unlocked by the handle.

The utility model discloses in, preferred, the dead lever is formed by a platform of a cylinder cutting, the platform supplies the movable rod to slide and fix a position on it.

The utility model discloses in, preferred, the movable rod lower part is first circle, and the upper portion is the second circle of in-band screw thread, first circle and the concentric assembly of dead lever.

In the present invention, preferably, the first round body and the second round body are integrally formed.

In the present invention, preferably, the handle is T-shaped.

In the utility model discloses in, preferred, the upper portion of handle is formed for three each other become 120 degrees circle tailor-welds.

The utility model discloses in, it is preferred, the lower part of handle is the circle body of taking the external screw thread, the external screw thread with the internal thread phase-match of movable rod.

The utility model discloses in, it is preferred, the locking chain includes that first interlinkage and second are linked, first interlinkage and second are linked both ends and all are taken circular through-hole to link together through the circle body structure of press forming, it is a plurality of first interlinkage is linked with the second and is connected the formation the locking chain.

In the present invention, preferably, the chain type wrench can be manufactured in a wrench size according to a size range of the nut to be screwed.

In the present invention, preferably, the chain type wrench is adapted to screw an outer hexagon nut or a bolt.

The utility model discloses a chain formula spanner has following advantage: the utility model provides a nut that chain formula spanner can change spanner size according to actual nut size to reach in a certain range value size all can use this kind of chain formula spanner, solves the problem that frequently changes the spanner in the actual operation process.

Drawings

Fig. 1 is a schematic structural view of a chain wrench according to the present invention;

fig. 2 is a front view of a chain wrench according to the present invention;

fig. 3 is a partial cross-sectional view of a chain wrench of the present invention;

fig. 4 is a using state diagram of a chain wrench according to the present invention;

the notation in the figure is: 1. locking the chain; 101. a first link; 102. a second link; 2. a handle; 3. fixing the rod; 4. a movable rod; 401. a first round body; 402. a second circular body.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description will be made in detail with reference to the accompanying drawings.

As shown in fig. 1-4, the present invention provides a tool for adjusting a locking chain 1 to change the size of the tool to screw various nuts within a certain range of values.

A chain type wrench comprises a locking chain 1, a fixed rod 3, a movable rod 4 and a handle 2, wherein one end of the locking chain 1 is rotatably connected with the fixed rod 3, the other end of the locking chain 1 is rotatably connected with the movable rod 4, and the movable rod 4 is sleeved on the fixed rod 3 and slides along the fixed rod 3 in the horizontal direction;

be provided with handle 2 in the movable rod 4, through handle 2 realizes the locking or the unblock of movable rod 4 and dead lever 3 are connected, and the chain is connected to 4 one end of movable rod, adjusts the size that the chain formed through slip movable rod 4, and the nut of screwing up when the chain cramps can begin to screw up the nut in current state through twist grip 2 with the chain locking.

In this embodiment, the fixed rod 3 is formed by cutting a platform from a cylinder, and the platform is used for the movable rod 4 to slide and position.

In this embodiment, the lower portion of the movable rod 4 is a first circular body 401, the upper portion of the movable rod 4 is a second circular body 402 with internal threads, the first circular body 401 is concentrically assembled with the fixed rod 3, the upper portion of the movable rod 4 is used for fixing the handle 2, and the joint of the upper portion and the lower portion of the movable rod 4 is a three-way through hole structure.

In the present embodiment, the first round body 401 and the second round body 402 are integrally molded.

In this embodiment, the handle 2 is T-shaped.

In the present embodiment, the upper portion of the handle 2 is formed by welding three circular bodies forming 120 degrees with each other.

In this embodiment, the lower part of the handle 2 is a round body with an external thread, and the external thread is matched with the internal thread of the movable rod 4.

In this embodiment, the locking chain 1 includes a first link 101 and a second link 102, the first link 101 and the second link 102 have circular through holes at both ends and are connected together by a pressed circular structure, a plurality of the first links 101 are connected with the second link 102 to form the locking chain 1, the first link 101 is a structure of a single link block in a bicycle chain, two ends of the first link 101 are connected with two second links 102, both ends of the first link 101 are respectively clamped between the second links 102, the first link 101 is a unit forming the chain, the second link 102 is a structure of a single link block in a bicycle chain, both ends of the second link 102 are connected with two first links 101, both ends of the second link 102 are respectively clamped between ends of the first link 101, both ends of the first link 101 have circular through holes, both ends of the second link 102 have circular holes, the first link 101 and the second link 102 are connected together by a pressed circular structure, a plurality of first links 101 are connected with second links 102 to form a chain.

In this embodiment, the chain wrench can be sized according to the size of the nut to be screwed.

In this embodiment, the chain wrench is adapted to turn an outer hexagon nut or bolt.

The whole operation steps are as follows:

one end of the movable rod 4 is connected with a chain, the size of the chain is adjusted by sliding the movable rod 4, and when the screwed nut is hooped by the chain, the chain can be locked at the current state by rotating the handle 2 and the nut starts to be screwed;

after the nut is screwed, the movable rod 4 can be unlocked by rotating the handle 2, so that the purpose of loosening the chain is achieved.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A chain type wrench comprises a locking chain (1), a fixed rod (3), a movable rod (4) and a handle (2), wherein one end of the locking chain (1) is rotatably connected with the fixed rod (3), the chain type wrench is characterized in that the other end of the locking chain (1) is rotatably connected with the movable rod (4), the movable rod (4) is sleeved on the fixed rod (3) and slides along the fixed rod (3) in the horizontal direction;

a handle (2) is arranged in the movable rod (4), and the movable rod (4) is connected with the fixed rod (3) in a locking or unlocking mode through the handle (2).

2. A chain wrench as claimed in claim 1, wherein said fixed bar (3) is formed by cutting a platform from a cylinder, said platform being adapted to allow the movable bar (4) to slide and be positioned thereon.

3. A chain wrench as claimed in claim 1 or 2, wherein said movable rod (4) is provided with a first circular body (401) at its lower part and a second circular body (402) with internal thread at its upper part, said first circular body (401) being assembled concentrically with said fixed rod (3).

4. A chain wrench according to claim 3, wherein said first round body (401) and said second round body (402) are formed integrally.

5. A chain wrench as claimed in claim 1, wherein said handle (2) is T-shaped.

6. A chain wrench as claimed in claim 5, wherein the upper portion of the handle (2) is formed by welding together three circular segments at 120 ° to each other.

7. A chain wrench as claimed in claim 3, characterised in that the lower part of the handle (2) is a round body with an external thread which matches an internal thread of the movable rod (4).

8. A chain wrench as claimed in claim 1, wherein said locking chain (1) comprises a first link (101) and a second link (102), said first link (101) and said second link (102) have circular through holes at both ends and are connected together by a pressed round structure, and a plurality of said first links (101) and said second links (102) are connected to form said locking chain (1).