High-applicability wrench
By designing a polygonal socket and a limiting positioning system on the wrench, the problem of insufficient applicability of traditional wrenches is solved, enabling the same wrench to be used for a variety of bolts, reducing the number of tools and improving portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional wrenches have poor applicability, requiring multiple models to handle different bolts, which makes them inconvenient to carry and easy to lose.
Design a highly versatile wrench that uses multiple polygonal sockets fitted onto the outside of a torsion bar, and employs limit beads and elastic elements to position the polygonal sockets, suitable for both internal and external hex bolts.
It enables the same wrench to be used for different sizes of internal and external hex bolts, making adjustment convenient, reducing the types of tools needed, and preventing loss.
Smart Images
Figure CN224012188U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to spanner technical field, concretely is a high adaptability spanner. BACKGROUND
[0002] The handle of the traditional spanner is provided with an opening or a sleeve hole for clamping a bolt at one end or both ends, and the bolt can be turned by applying an external force to the handle in the thread rotation direction. However, in actual use, the bolt types are various, and various types of spanners need to be prepared.
[0003] In order to solve the problem of various bolt types, although the adjustable spanner has certain adaptability and can adjust to different sizes of bolts to a certain extent, when facing an internal hexagonal bolt, an internal hexagonal spanner and other tools still need to be prepared additionally. In this way, the types and quantities of tools are increased, so a large number of different types of spanners need to be prepared, which leads to inconvenience in carrying and easy loss, and is not convenient for people to use.
[0004] Therefore, it is necessary to provide a high adaptability spanner to solve the above problems. SUMMARY
[0005] (I) Technical problems solved
[0006] The utility model discloses a high adaptability spanner, which solves the problem of poor adaptability of the existing spanner in the background art.
[0007] (II) Technical scheme
[0008] In order to achieve the above purpose, the utility model discloses a high adaptability spanner, which comprises a torsion bar, a plurality of polygonal sleeves are coaxially sleeved on the outer side of the torsion bar along the radial direction from inside to outside, a sliding groove is formed on the outer wall of the torsion bar and the polygonal sleeve along the radial direction, a limiting bead is arranged in the sliding groove, a plurality of clamping grooves are formed on the inner wall of the polygonal sleeve along the axial direction, and the limiting bead is protruded from the sliding groove and embedded in the clamping groove by the elastic member, so as to position the polygonal sleeve.
[0009] Preferably, the clamping groove has three, when the limiting bead is embedded in the middle clamping groove, the lower end surface of the polygonal sleeve is flush with the lower end surface of the torsion bar.
[0010] Preferably, the polygonal sleeve is a regular hexagonal sleeve, and the cross section of the torsion bar is a regular hexagon.
[0011] Preferably, the outer wall of the torsion bar and the polygonal sleeve is provided with a stepped groove, and the inner wall of the polygonal sleeve is provided with a limiting ring matched with the stepped groove.
[0012] Preferably, the elastic member is a spring, and the spring is located on the side of the limiting bead away from the clamping groove.
[0013] Preferably, the top end of the torsion bar is fixedly connected with a handle.
[0014] (Three) beneficial effects
[0015] Compared with the prior art, the high-applicability wrench has the following beneficial effects:
[0016] 1. The high-applicability wrench is suitable for inner hexagonal bolts and outer hexagonal bolts of different specifications, and has better applicability.
[0017] 2. The high-applicability wrench is provided with a spring, a limiting bead and a clamping groove, and the spring, the limiting bead and the clamping groove are matched to position the polygonal sleeve, so that the adjustment is more convenient. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a three-dimensional schematic view of the structure of the utility model;
[0019] Figure 2 is a front view schematic view of the structure of the utility model;
[0020] Figure 3 is a top view schematic view of the structure of the utility model;
[0021] Figure 4 is a schematic view of the use state of the structure of the utility model.
[0022] In the drawing: 2, handle; 3, torsion bar; 4, polygonal sleeve; 5, sliding groove; 6, spring; 7, limiting bead; 8, clamping groove; 9, limiting ring; 10, stepped groove. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0024] Please refer to Figures 1-4As shown, the high-applicability wrench comprises a torsion bar 3, a plurality of polygonal sleeves 4 coaxially sleeved on the outer side of the torsion bar 3 from inside to outside along the radial direction of the torsion bar 3 in sequence, a sliding groove 5 is formed on the outer wall of the torsion bar 3 and the polygonal sleeve 4 along the radial direction of the torsion bar 3 and the polygonal sleeve 4, a limiting bead 7 is arranged in the sliding groove 5, a plurality of clamping grooves 8 are formed on the inner wall of the polygonal sleeve 4 along the axial direction of the polygonal sleeve 4, the limiting bead 7 is protruded out of the sliding groove 5 and embedded in the clamping groove 8 by the elastic member, and the limiting bead 7 is used for positioning the polygonal sleeve 4, and the size of the limiting bead 7 protruded out of the sliding groove 5 is smaller than the radius of the limiting bead 7. Specifically, the cross-sectional outer contour of the torsion bar 3 and the plurality of polygonal sleeves 4 is respectively matched with the head hexagonal hole of the inner hexagonal bolt of different specifications, and the cross-sectional inner contour of the plurality of polygonal sleeves 4 is respectively matched with the head contour of the outer hexagonal bolt of different specifications. The polygonal sleeve 4 is a regular hexagonal sleeve, and the cross section of the torsion bar 3 is a regular hexagon.
[0025] In use, the wrench is adjusted according to the bolt to be screwed, for example, when the bolt to be screwed is an inner hexagonal bolt, the head hole diameter of the bolt is matched with the cross-sectional outer contour of the torsion bar 3, the polygonal sleeve 4 is slid upward to make the torsion bar 3 protrude, and the limiting bead 7 is clamped into the clamping groove 8 to position the polygonal sleeve 4, then the torsion bar 3 is inserted into the hexagonal hole of the head of the inner hexagonal bolt, and the inner hexagonal bolt is screwed; when the bolt to be screwed is an outer hexagonal bolt, the head contour of the bolt is matched with the cross-sectional inner contour of the polygonal sleeve 4, the polygonal sleeve 4 matched with the bolt is slid downward to make the polygonal sleeve 4 protrude from the lower end surface of the torsion bar 3, and the limiting bead 7 is clamped into the clamping groove 8 to position the polygonal sleeve 4, then the polygonal sleeve 4 is sleeved on the outer side of the head of the outer hexagonal bolt, and the outer hexagonal bolt is screwed.
[0026] Specifically, the clamping groove 8 has three, when the limiting bead 7 is embedded in the middle clamping groove 8, the lower end surface of the polygonal sleeve 4 is flush with the lower end surface of the torsion bar 3; the polygonal sleeve 4 is slid downward, the limiting bead 7 is embedded in the upper clamping groove 8, and the lower end surface of the polygonal sleeve 4 protrudes from the lower end surface of the torsion bar 3, which is adapted to screw the outer hexagonal bolt; the polygonal sleeve 4 is slid upward, the limiting bead 7 is embedded in the lower clamping groove 8, and the upper end surface of the polygonal sleeve 4 protrudes from the upper end surface of the torsion bar 3, which is adapted to screw the inner hexagonal bolt.
[0027] Specifically, the elastic member is a spring 6, and the spring 6 is located on the side of the limiting bead 7 away from the clamping groove 8. When the polygonal sleeve 4 is slid, the slot of the clamping groove 8 acts on the spherical surface of the limiting bead 7 to push the limiting bead 7 into the sliding groove 5, and the spring 6 is compressed under force, when the other clamping groove 8 moves to the position corresponding to the limiting bead 7, the spring 6 pushes the limiting bead 7 to be embedded in the clamping groove 8 to position the polygonal sleeve 4.
[0028] In order to avoid the polygon sleeve 4 from falling off, the torsion bar 3 and the outer wall of the polygon sleeve 4 are provided with a stepped groove 10, and the inner wall of the polygon sleeve 4 is provided with a limiting ring 9 matched with the stepped groove 10. Under the mutual limiting of the limiting ring 9 and the stepped groove 10, the polygon sleeve 4 can be prevented from sliding out from the lower end. Meanwhile, the handle 2 is fixedly connected to the top end of the torsion bar 3, and the force arm is increased by arranging the handle 2, so as to twist the bolt. Meanwhile, the diameter of the handle 2 is larger than the diameter of the torsion bar 3, and under the action of the handle 2, the polygon sleeve 4 can be prevented from sliding out from the upper end of the torsion bar 3.
[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A highly versatile wrench, characterized in that: The device includes a torsion bar (3), on the outer side of the torsion bar (3) a plurality of polygonal sleeves (4) are coaxially slidably sleeved from the inside to the outside along its radial direction. The outer walls of the torsion bar (3) and the polygonal sleeves (4) are provided with grooves (5) along their radial direction. Limiting beads (7) are slidably arranged in the grooves (5). The inner wall of the polygonal sleeves (4) is provided with a plurality of slots (8) along its axial direction. The limiting beads (7) are pushed out of the grooves (5) by the elastic element and embedded in the slots (8) for positioning the polygonal sleeves (4).
2. The highly adaptable wrench according to claim 1, characterized in that: There are three slots (8). When the limiting bead (7) is inserted into the middle slot (8), the lower end face of the polygonal sleeve (4) is flush with the lower end face of the torsion bar (3).
3. The highly adaptable wrench according to claim 1, characterized in that: The polygonal sleeve (4) is a regular hexagonal sleeve, and the cross-section of the torsion bar (3) is a regular hexagonal.
4. A highly adaptable wrench according to claim 1, characterized in that: Both the torsion bar (3) and the polygonal sleeve (4) have stepped grooves (10) on their outer walls, and the polygonal sleeve (4) has a limiting ring (9) that matches the stepped grooves (10) on its inner wall.
5. A highly adaptable wrench according to claim 1, characterized in that: The elastic element is a spring (6), which is located on the side of the limiting bead (7) away from the slot (8).
6. A highly adaptable wrench according to claim 1, characterized in that: The top end of the torsion bar (3) is fixedly connected to a handle (2).