Sun-shaped universal spindle wrench
By designing an adjustable L-shaped rod and a sun-shaped universal spindle wrench with a limiting structure, the problem of low assembly and disassembly accuracy of existing wrenches when there is a lack of radial space is solved, achieving efficient and durable nut assembly and disassembly, and adapting to nuts of various sizes and shapes.
Patent Information
- Application Number
- CN202423249256.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing wrenches cannot effectively disassemble or assemble when the nut end face is lower than the housing end face and there is no radial space, resulting in low disassembly and assembly accuracy and potential damage to parts.
Design a sun-shaped universal spindle wrench with adjustable L-shaped rods and a limiting structure, which can accurately install and remove nuts when radial space is insufficient. It can apply torque simultaneously through multiple rods and is suitable for nuts of various sizes and shapes.
It enables high-precision assembly and disassembly of nuts even in the absence of radial space, improving the versatility and durability of operation, preventing damage to parts, and increasing work efficiency.
Smart Images
Figure CN223589276U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to spanner technical field, concretely is a sun shape universal main shaft spanner. BACKGROUND
[0002] The main shaft nut structure mainly has two kinds, one is as shown in the figure is the outer diameter slot, one is as shown in the figure is the end face punching, and the slot and the punching are all for disassembling and assembling the nut. Figure 1 Figure 2 In the prior art, the spanner can usually only be applied to the nut with radial space, which leads to the fact that when the user is disassembling or assembling the main shaft, if the nut end face is lower than the shell end face and there is no radial space between the nut and the shell, the conventional spanner cannot contact the nut, and the user can only be helpless, and if the user uses a hammer to knock and disassemble, the assembly precision is affected, and seriously, the parts are even scrapped. UTILITY MODEL CONTENTS
[0003] The utility model discloses a sun shape universal main shaft spanner, which can adapt to main shaft nuts of various sizes and can complete high-precision disassembly and assembly work when the radial space is insufficient, thereby avoiding damaging the parts and improving work efficiency.
[0004] The utility model adopts the technical scheme that a sun shape universal main shaft spanner comprises a handle and a spanner head fixed at one end of the handle.
[0005] The spanner head has a cylindrical cavity for the main shaft to pass through.
[0006] On the spanner head, there are no less than two rod members distributed along the circumference of the cylindrical cavity.
[0007] Each rod member comprises a sliding part and a positioning part fixed at one end of the sliding part.
[0008] The sliding part and the spanner head are slidingly matched in the radial direction of the cylindrical cavity.
[0009] One end of the positioning part is fixedly connected with the sliding part, and the other end extends to the outside of the spanner head in the axial direction of the cylindrical cavity, and the shape of the end extending to the outside is matched with the shape of the positioning slot hole arranged on the main shaft nut.
[0010] As a preferred scheme, the spanner head is provided with a sliding groove for the sliding part to pass through.
[0011] As a preferred scheme, the sliding part is a polygonal prism, and the shape of the sliding groove is matched with the cross-sectional shape of the sliding part.
[0012] As a preferred scheme, the spanner head is provided with a limiting member for limiting the sliding of the rod member.
[0013] As a preferred scheme, the limiting piece is a fastening screw, and a threaded hole penetrating through the sliding groove is arranged on the end face of the wrench head.
[0014] As a preferred scheme, the rod piece is in an L shape as a whole.
[0015] As a preferred scheme, the positioning part is in a rod shape, and the axis of the positioning part is parallel to the axis of the cylindrical cavity.
[0016] As a preferred scheme, the cross section of the end of the positioning part extending to the outside of the wrench head is in a rectangular or circular shape.
[0017] As a preferred scheme, the number of the rod pieces is not less than three, and the rod pieces are distributed at equal angles along the circumference of the cylindrical cavity.
[0018] As a preferred scheme, the surface of the handle is provided with anti-skid lines.
[0019] Compared with the prior art, the utility model has the beneficial effects that:
[0020] 1. Strong universality: can adapt to nuts of various sizes and shapes, especially for main shaft nuts and nuts without radial operation space, conventional crescent wrenches have no operation space and cannot be used, but the present application can increase the axial operation range through the L-shaped rod piece and is suitable for main shaft nuts of various structures.
[0021] 2. Reliable torque: conventional crescent wrenches or spanners can only apply torque to one slot or two holes of the nut, but the present application can install corresponding multiple L-shaped rod pieces according to the number of slots or holes of the nut, all the rod pieces on the circumference simultaneously apply torque to the nut, and the nut is uniformly stressed.
[0022] 3. Simple operation: the working radius and position of the L-shaped rod piece can be adjusted by simply rotating the fastening screw.
[0023] 4. Compact structure: convenient to carry and replace the rod piece.
[0024] 5. High durability: multiple rod pieces simultaneously bear torque, avoiding the disadvantage of force concentration of crescent wrenches, improving the durability and service life of the wrench. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0026] Figure 1 It is the installation schematic view of the slotted spindle nut;
[0027] Figure 2 It is the installation schematic view of the perforated spindle nut;
[0028] Figure 3 It is the integral bearing schematic view of the utility model;
[0029] Figure 4 It is the cooperation schematic view of the utility model and the spindle nut.
[0030] Reference signs:
[0031] 1, handle;
[0032] 2, wrench head, 201, cylindrical cavity, 202, sliding groove, 203, threaded hole;
[0033] 3, rod, 301, sliding part, 302, positioning part;
[0034] 4, spindle;
[0035] 5, spindle nut, 501, positioning slot hole;
[0036] 6, fastening screw;
[0037] 7, shell. DETAILED DESCRIPTION
[0038] Below, the utility model is described in detail through exemplary embodiments. However, it should be understood that the elements, structures and features in one embodiment can also be beneficially combined into other embodiments without further description.
[0039] It should be noted that: unless otherwise defined, the technical terms or scientific terms used in this paper should be understood as the usual meaning by the person skilled in the art to which the utility model belongs. The "one", "a" or "the" and similar words used in the utility model patent application description and claims do not express quantity limitation, but indicate that there is at least one; The "first", "second" and "third" used in this paper should not be regarded as the limitation of the order of parts, but only for distinguishing different parts; "Include" or "contain" and similar words indicate that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, but do not exclude other elements or objects with the same function.
[0040] In order to describe the specific structure of the sun universal spindle wrench more clearly, combined with the attached Figures 1-4 This embodiment is described:
[0041] As Figure 3 And Figure 4 As shown in the drawings, a sun-shaped universal main shaft wrench comprises a handle 1 and a wrench head 2 fixed at one end of the handle 1; the wrench head 2 has a cylindrical cavity 201 for the main shaft 4 to pass through; and on the wrench head 2, there are not less than two rod members 3 distributed along the circumference of the cylindrical cavity 201; each rod member 3 comprises a sliding part 301 and a positioning part 302 fixed at one end of the sliding part 301; the sliding part 301 is in sliding fit with the wrench head 2 in the radial direction of the cylindrical cavity 201; one end of the positioning part 302 is fixedly connected with the sliding part 301, and the other end extends to the outside of the wrench head 2 in the axial direction of the cylindrical cavity 201, and the shape of the end extending to the outside is adapted to the shape of the positioning slot hole provided on the main shaft nut 5.
[0042] The radial position of the rod member 3 on the wrench head 2 is adjustable, so that the diameter of the circle surrounded by the positioning part 302 is adjustable, which can adapt to the main shaft nut 5 of different specifications and diameters; since the positioning part 302 extends in the axial direction, it can directly enter the positioning slot hole 501, and the handle 1 and the wrench head 2 are outside the end face of the main shaft nut 5, which is not limited by the gap between the main shaft nut 5 and the shell 7.
[0043] The wrench head 2 is generally in the shape of a ring, and the wrench head 2 is provided with a sliding groove 202 for the sliding part 301 to pass through.
[0044] In order to ensure that the rod member 3 does not rotate at will, the sliding part 301 can be designed in the shape of a polygonal prism, and the shape of the sliding groove 202 is adapted to the cross-sectional shape of the sliding part 301;
[0045] The sliding part 301 and the positioning part 302 can be designed to have the same cross section but different lengths, so that the functions of the sliding part and the positioning part can be replaced, and the length of the actual positioning part can be changed; or the positioning part 302 can be designed to be extendable, so as to adapt to the main shaft nut installed at different depths.
[0046] In order to ensure that the rod member 3 does not slide at will in the sliding groove 202, a limiting member is arranged on the wrench head 2 to limit the sliding of the rod member 3, which can ensure the stability of the rod member 3 when the wrench is used, and also avoid the loss of the rod member 3; for example, the limiting member can be a fastening screw 6, and a threaded hole 203 is arranged on the end face of the wrench head 2 and communicates with the sliding groove 202, the fastening screw 6 is in threaded fit with the threaded hole 203; when adjusting, the user only needs to loosen the fastening screw 6 to adjust the radial position of the rod member 3, and after the adjustment is completed, the fastening screw 6 is rotated to press the side surface of the sliding part 301, so that the rod member 3 remains stable.
[0047] The rod 3 is L-shaped as a whole, the sliding part 301 and the positioning part 302 are perpendicular to each other, the positioning part 302 is rod-shaped, the axis of the positioning part 302 is parallel to the axis of the cylindrical cavity 201; the cross section of the end of the positioning part 302 extending to the outside of the wrench head is rectangular or circular to adapt to Figure 1 and Figure 2 different forms of spindle nuts.
[0048] The number of the rod 3 can be two, preferably not less than three, and the plurality of rods are distributed at equal angles along the circumference of the cylindrical cavity 201, cooperating with the circular ring-shaped wrench head 2 to form a "sun"; in use, all the rods 3 on the circumference simultaneously exert torque on the spindle nut, so that the spindle nut is uniformly stressed.
[0049] In the specific design, the wrench as a whole can be made of high-strength alloy steel; the surface of the handle 1 is provided with anti-skid lines for anti-skid treatment; the length of the handle 1 is designed according to the need; the number of the handle 1 is not limited, which can be two or more, suitable for multi-person operation, increasing the torque and improving the efficiency.
[0050] The parts not described in detail in the above embodiments are prior art.
[0051] It should be noted that although the utility model has been described through the above embodiments, the utility model can also have other various embodiments. Those skilled in the art can obviously make various corresponding changes and modifications to the utility model without departing from the spirit and scope of the utility model, but these changes and modifications should all belong to the scope protected by the claims and equivalents of the utility model.
Claims
1. A sun-shaped universal spindle wrench, characterized by: The wrench handle (1) and the wrench head (2) fixed at one end of the wrench handle (1); The wrench head (2) has a cylindrical cavity (201) for the main shaft (4) to pass through; On the wrench head (2), there are not less than two rod members (3) distributed along the circumference of the cylindrical cavity (201); Each rod member (3) comprises a sliding part (301) and a positioning part (302) fixed at one end of the sliding part (301); The sliding part (301) and the wrench head (2) are in sliding fit in the radial direction of the cylindrical cavity (201); One end of the positioning part (302) is fixedly connected with the sliding part (301), and the other end extends to the outside of the wrench head (2) in the axial direction of the cylindrical cavity (201), and the shape of the end extending to the outside is matched with the shape of the positioning slot hole provided on the main shaft nut (5).
2. A sun-shaped universal spindle wrench according to claim 1, characterized in that: The wrench head (2) is provided with a sliding groove (202) for the sliding part (301) to pass through.
3. A sun-shaped universal spindle wrench according to claim 2, characterized in that: The sliding part (301) is a polygonal prism, and the shape of the sliding groove (202) is matched with the cross-sectional shape of the sliding part (301).
4. A sun-shaped universal spindle wrench according to claim 2, characterized in that: The wrench head (2) is provided with a limiting member for limiting the sliding of the rod member (3).
5. A sun-shaped universal spindle wrench according to claim 4, characterized in that: The limiting member is a fastening screw (6), and the end face of the wrench head (2) is provided with a threaded hole (203) penetrating and communicating with the sliding groove (202), and the fastening screw (6) is in threaded fit with the threaded hole (203).
6. A sun-shaped universal spindle wrench according to claim 1, characterized in that: The rod member (3) is in L shape as a whole.
7. A sun-shaped universal spindle wrench according to claim 1, characterized in that: The positioning part (302) is in rod shape, and the axis of the positioning part (302) is parallel to the axis of the cylindrical cavity (201).
8. A sun-shaped universal spindle wrench according to claim 1, characterized in that: The cross section of the end of the positioning part (302) extending to the outside of the wrench head is in rectangular or circular shape.
9. A sun-shaped universal spindle wrench according to claim 1, characterized in that: The number of the rod members (3) is not less than three, and they are distributed at equal angles along the circumference of the cylindrical cavity (201).
10. A sun-shaped universal spindle wrench according to claim 1, characterized in that: The surface of the wrench handle (1) is provided with anti-skid lines.