Wrench assembly for narrow space
By designing a wrench assembly for confined spaces, and utilizing the polygonal fit between the socket and the wrench, the problem of traditional wrenches being difficult to operate in confined spaces is solved, enabling the smooth tightening and loosening of nuts in confined spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional socket wrenches are difficult to use in confined spaces, making it difficult to operate or even impossible to complete the tightening action.
A wrench assembly for confined spaces has been designed, including a socket and a wrench. One end of the socket has a wrenching surface, and the other end has a regular polygonal groove. One end of the wrench has an arc-shaped handle and a regular polygonal connector. The gap fit between the groove and the connector reduces the space required for the wrench to swing, making it suitable for operation in confined spaces.
This allows for easy tightening and loosening of nuts in confined spaces, alleviating operational difficulties and improving operational stability and safety.
Smart Images
Figure CN224012187U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to spanner tool technical field, concretely is a spanner assembly for narrow space. BACKGROUND
[0002] In the process of diesel engine fuel injection pump transmission shaft adjusting fuel supply timing, due to narrow space, the traditional sleeve spanner is difficult to wrench nut. When the square head of the traditional sleeve spanner cooperates with the spanner, it needs a large swing space, and in the narrow space, the swing is limited, leading to difficult operation, and even unable to complete the wrenching action. SUMMARY
[0003] The utility model discloses a spanner assembly for narrow space to solve at least one technical problem.
[0004] In the first aspect, the utility model provides a spanner assembly for narrow space, including: sleeve and spanner, wherein one end of sleeve is provided with wrenching surface, and the other end of sleeve is provided with recess, one end of spanner is provided with arc handle, and the other end of spanner is provided with connecting head, the wrenching surface cooperates with nut, and the recess cooperates with connecting head, the recess is N -sided polygon recess structure, and the connecting head is N -sided polygon convex structure, and N is the positive integer greater than 6.
[0005] Further, the recess and the connecting head are gap fit.
[0006] Further, the surface of arc handle is provided with anti -slip line.
[0007] Further, the recess is dodecagon recess structure, and the connecting head is dodecagon convex structure.
[0008] Further, the wrenching surface is hexagonal recess structure.
[0009] The utility model provides a spanner assembly for narrow space, and wrench is designed into arc structure, can adapt to the operation demand of narrow space, and through the cooperation of the polygon connecting head of one end of wrench and the polygon recess on sleeve, can reduce the space required for wrench swing, makes wrench can wrench nut in narrow space smoothly, and alleviate the technical problem that sleeve spanner is difficult to operate in the narrow space in prior art. BRIEF DESCRIPTION OF DRAWINGS
[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and the other drawings can be obtained by those skilled in the art without creative effort based on these drawings.
[0011] Figure 1 A first perspective three-dimensional schematic view of a wrench assembly for a narrow space is provided for the embodiments of the present application.
[0012] Figure 2 A second perspective three-dimensional schematic view of a wrench assembly for a narrow space is provided for the embodiments of the present application.
[0013] In the figure: 1, sleeve, 11, wrenching surface, 12, groove, 2, wrench, 21, connecting head, 22, arc-shaped handle. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.
[0015] Figure 1 A first perspective three-dimensional schematic view of a wrench assembly for a narrow space is provided for the embodiments of the present application, Figure 2 A second perspective three-dimensional schematic view of a wrench assembly for a narrow space is provided for the embodiments of the present application. As shown in Figure 1 and Figure 2 , comprising: a sleeve 1 and a wrench 2; wherein one end of the sleeve 1 is provided with a wrenching surface 11, and the other end of the sleeve 1 is provided with a groove 12; one end of the wrench 2 is provided with an arc-shaped handle 22, and the other end of the wrench 2 is provided with a connecting head 21.
[0016] The wrenching surface 11 cooperates with the nut, and the groove 12 cooperates with the connecting head 21. Specifically, the connecting head 21 is inserted into the groove 12, and when the connecting head 21 is rotated through the arc-shaped handle 22, the rotation of the wrenching surface 11 can be driven through the cooperation between the groove 12 and the connecting head 21.
[0017] Specifically, the groove 12 and the connecting head 21 are gap-fitted, facilitating quick disassembly and assembly.
[0018] The groove 12 is a regular N-polygon groove structure, and the connecting head 21 is a regular N-polygon convex structure; N is a positive integer greater than 6.
[0019] Preferably, as shown in Figure 1 and Figure 2 The recess 12 is a regular dodecagon recess structure, and the connecting head 21 is a regular dodecagon convex structure. This arrangement can reduce the space required for swinging the arc-shaped handle 22, so that the wrench assembly can be smoothly turned in a narrow space.
[0020] In the embodiment of the utility model, the wrenching surface 11 is a recess designed according to the size of the nut, for example, the wrenching surface is a regular hexagon recess structure, which can match the wrenching of a regular hexagon structure nut. The high adaptability of the wrenching surface 11 to the nut enables the wrench assembly to wrench the nut more stably, effectively avoiding the occurrence of nut unclamping.
[0021] Preferably, the surface of the arc-shaped handle 22 is provided with anti-slip lines, which can improve the comfort and safety of operation.
[0022] In use, the wrenching surface 11 of the sleeve 1 is sleeved on the nut to be turned, then the connecting head 21 of the wrench 2 is inserted into the recess 12 of the sleeve 1, and the arc-shaped handle 22 is held to turn. After turning by a predetermined angle, the connecting head 21 of the wrench 2 is taken out of the recess 12, and the previous position is restored, and the connecting head 21 is inserted into the recess 12 again for the next turning, and so on until the turning is completed.
[0023] It is obvious to those skilled in the art that the utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0024] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.
Claims
1. A wrench assembly for use in confined spaces, characterized in that, include: A socket and a wrench; wherein, one end of the socket is provided with a tightening surface, and the other end of the socket is provided with a groove; one end of the wrench is provided with an arc-shaped handle, and the other end of the wrench is provided with a connector; The wrench surface mates with the nut, and the groove mates with the connector. The groove is a regular N-sided groove structure, and the connector is a regular N-sided protrusion structure; N is a positive integer greater than 6.
2. The wrench assembly for confined spaces according to claim 1, characterized in that: The groove and the connector are fitted with a clearance.
3. The wrench assembly for confined spaces according to claim 1, characterized in that: The surface of the arc-shaped handle is provided with anti-slip texture.
4. The wrench assembly for confined spaces according to claim 1, characterized in that: The groove is a regular dodecagonal groove structure, and the connector is a regular dodecagonal protrusion structure.
5. The wrench assembly for confined spaces according to claim 1, characterized in that: The wrench surface has a regular hexagonal groove structure.