A wrench

By designing a wrench with a chain link and a pry bar, the problem of belt wrenches being difficult to tighten when removing forklift filter elements was solved, enabling simple and efficient filter element replacement.

CN224334351UActive Publication Date: 2026-06-09SHANGHAI HORIZON EQUIP ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HORIZON EQUIP ENG
Filing Date
2025-04-25
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing technologies, belt wrenches are difficult to tighten when disassembling forklift filter elements, are prone to slipping, and lack sufficient space, resulting in low efficiency.

Method used

Design a wrench comprising a body, a chain link, and a pry bar. The chain link is made of chain and has a friction structure. The chain link is fitted onto the outer surface of the filter element, and the pry bar is inserted into the body to achieve simple replacement of the filter element.

Benefits of technology

It is simple and effective to operate, solving the problem of belt wrenches being difficult to tighten in confined spaces and improving disassembly efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224334351U_ABST
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Abstract

The utility model discloses a wrench, include: the body, the one end of body is provided with the spigot, the other end of body is equipped with a link loop, this wrench will the link loop of wrench, the outer facade of filter core is covered, then the body is adjusted to the appropriate position, and the crowbar is worn into the spigot, through the crowbar, can complete the filter core replacement action, and the operation is simple and effective, can simply and effectively solve the problem mentioned in filter core background technology.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a technical field of dismounting, specifically relates to a spanner. BACKGROUND

[0002] The spanner needs to be used when the filter element of the forklift is dismounted, in the prior art, the filter element of the forklift uses the belt spanner, the belt spanner is difficult to fasten in use because the filter element of the forklift is inside the driver's seat, and the belt spanner is prone to skidding, and the belt spanner is insufficient in use space and low in efficiency, so the on-site use cannot be well satisfied.

[0003] Therefore, it is urgent to design the spanner that can effectively dismount the filter element of the forklift. UTILITY MODEL CONTENT

[0004] In view of the above problems existing in the prior art, the utility model aims at providing a spanner.

[0005] The specific technical scheme is as follows:

[0006] A spanner mainly comprises a body.

[0007] One end of the body is provided with a socket, and the other end of the body movably penetrates a chain ring.

[0008] The spanner has the following features: the chain ring is made of a chain.

[0009] The spanner has the following features: the other end of the body is provided with a round port, and the chain ring penetrates into the round port.

[0010] The spanner has the following features: the spanner further comprises a crowbar, the diameter of the crowbar is less than the diameter of the socket so that the crowbar can be inserted into the socket.

[0011] The spanner has the following features: the diameter of the chain ring is matched with the diameter of the to-be-dismounted part.

[0012] The spanner has the following features: the side surface of each link of the chain ring is provided with a friction structure.

[0013] The spanner has the following features: the friction structure is a sawtooth or a grain.

[0014] The positive effect of the above technical scheme is as follows:

[0015] This utility model provides a wrench. The chain link of the wrench is inserted into the outer surface of the filter element, and then the body is adjusted to a suitable position. The pry bar is inserted into the socket, and the filter element can be replaced by prying the pry bar. The operation is simple and effective, and it can solve the problems mentioned in the background technology of filter elements in a simple and effective way. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a wrench provided by this utility model;

[0017] Figure 2 This is a partial structural diagram of the chain link provided by this utility model.

[0018] In the attached diagram: 1. Body; 11. Insertion port; 12. Round opening; 2. Chain link; 21. Chain link; 3. Crowbar; 4. Saw teeth. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] Please see Figure 1and Figure 2 This utility model discloses a wrench, comprising: a body 1;

[0023] One end of the body 1 is provided with an insertion port 11, and a chain link 2 is movably threaded through the other end of the body 1.

[0024] The main body 1 can be a flat iron rod, and its specific shape can be referenced from wrenches in the prior art. Optionally, the insertion port 11 is a circular hole, mainly for inserting a pry bar.

[0025] Optionally, the other end of the body 1 is provided with a circular opening 12, and the chain link 2 passes through the circular opening 12.

[0026] The circular opening 12 is actually a circular hole. This circular opening 12 is used to install the chain link 2, which is made of chain. For example, in this embodiment, 22 chain links with a hole spacing of 15mm are used to form a chain link 2 with a diameter of approximately 100mm. This is merely an example and not intended to limit the scope of this invention. The diameter of the chain link 2 is designed based on the diameter of the part to be disassembled; that is, the diameter of the chain link 2 is adapted to the diameter of the part to be disassembled. Optionally, in this embodiment, the part to be disassembled is a forklift filter element; therefore, the diameter of the chain link 2 is designed based on the diameter of the forklift filter element. If other structures need to be disassembled, the diameter of the chain link 2 can be changed.

[0027] For example, in one specific implementation, an iron rod with a length of 240mm is used, with an insertion port 11 and a round port 12 at the top and bottom ends of the iron rod, respectively, both with a diameter of 15mm. The chain link 2 needs to be inserted into the round port 12.

[0028] Furthermore, it also includes a crowbar 3 as described above, the diameter of which is smaller than the diameter of the socket 11 so that the crowbar 3 can be inserted into the socket 11.

[0029] Each link 21 of the chain link 2 has a friction structure on its side. Further, the friction structure is a serration 4 or a textured surface. For example, in this embodiment, the friction structure is a serration 4. The side of the link 21 refers to the side along the axial direction of the circular ring. The friction structure is at least provided on the side of the chain link 2 that contacts the part to be disassembled, to increase friction and prevent slippage during disassembly.

[0030] The present invention provides a wrench in which the chain link 2 of the wrench is inserted into the outer surface of the forklift filter element, the body 1 is adjusted to a suitable position, and the pry bar 3 is inserted into the socket 11. By prying the pry bar 3, the filter element replacement action can be completed. The operation is simple and effective, and it can solve the problems mentioned in the background art in a simple and effective way.

[0031] Any combination of the technical features in the above embodiments can be made, and for the sake of brevity, not all possible combinations are described above, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0032] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A wrench, characterized in that, include: ontology; One end of the main body is provided with an insertion port, and a chain link is movably inserted through the other end of the main body. The other end of the main body is provided with a round opening, and the chain link is inserted into the round opening. It also includes a pry bar, the diameter of which is smaller than the diameter of the insertion port so that the pry bar can be inserted into the insertion port. The diameter of the chain link is adapted to the diameter of the part to be disassembled. Each link of the chain link has a friction structure on its side, and the friction structure is a sawtooth or a texture.

2. The wrench according to claim 1, characterized in that, The chain links are made of chains.