Connection structure between grip and tool

Abstract

A connection structure between a grip and a tool, comprising a grip and a tool head. The grip comprises an insertion portion and a handle portion, the center of the tool head being provided with an insertion hole, and the insertion portion being embedded in the insertion hole. The end face of the insertion portion is flush with the end face of the tool head, the center of the insertion portion being provided with an embedding slot, and a wedge-shaped block being embedded in the embedding slot. A bolt is inserted into the center of the wedge-shaped block, the bolt being connected to the grip to fix the wedge-shaped block in the embedding slot. A slope for tensioning the grip is formed on the outer surface of the wedge-shaped block, the wedge-shaped block being pressed tightly against the inner wall of the embedding slot, and the outer wall of the insertion portion being tensioned tightly against the inner wall of the insertion hole. The connection structure solves the problem that existing tool heads are liable to loosen and fall; by mounting the wedge-shaped block by means of the bolt, the outer wall of the grip can be tensioned tightly, which increases the pressure between the outer wall of the grip and the inner wall of the tool head, thereby improving the connection strength between the grip and the tool head.

Description

Connection structure between handle and tool Technical Field

[0001] This utility model relates to the field of hardware tool technology, specifically to the connection structure between the handle and the tool. Background Technology

[0002] Hand tools such as axes and hammers typically have their tool heads attached to the handles and secured with fasteners or blocks. However, during tool use, the tool head is subjected to an upward reaction force when striking, which can cause the tool head and handle to loosen, affecting the normal use of the tool. Therefore, this universal tool was designed to reduce the probability of tool head loosening. Utility Model Content

[0003] The purpose of this utility model is to provide a connection structure between the handle and the tool. By installing the wedge block with bolts, the outer wall of the handle is tightened, which enhances the pressure between the outer wall of the handle and the inner wall of the tool head, improves the connection strength between the handle and the tool head, reduces the impact of the reaction force on the tool head during use, and reduces the possibility of the tool head loosening.

[0004] This utility model provides the following technical solution: a connection structure between a handle and a tool, including a handle and a tool head. The handle includes a plug-in part and a grip part. The tool head has a plug-in hole at its center. The plug-in part is embedded in the plug-in hole. The end face of the plug-in part is flush with the end face of the tool head. The plug-in part has a groove at its center. A wedge block is embedded in the groove. A bolt is inserted into the center of the wedge block. The bolt is connected to the handle and fixes the wedge block in the groove. The outer surface of the wedge block is formed with an inclined surface for tightening the handle. The wedge block is installed in the groove, and the outer wall of the plug-in part is tightened against the inner wall of the plug-in hole.

[0005] In one embodiment, the wedge has a taper on its outer surface in the height direction, and a through hole is provided at the center of the wedge for mounting bolts.

[0006] In one embodiment, the upper outer surface of the wedge block is formed with a tapered slope, the lower surface of the wedge block is a vertical surface, and a through hole is provided in the center of the wedge block for installing bolts.

[0007] Furthermore, the wedge-shaped block also has outwardly protruding protrusions formed on its side surface.

[0008] In one embodiment, the wedge block is circular, elliptical, axe-shaped, square, or teardrop-shaped.

[0009] In one embodiment, a nut is provided inside the handle, and the nut is threadedly connected to the bolt. A through hole is provided on the bottom surface of the groove, and the nut is placed in the through hole. The bolt is fixed by the nut, making the bolt connection more convenient.

[0010] In one embodiment, a threaded hole is provided at the center of the handle, and the bolt is threaded into the threaded hole.

[0011] Furthermore, a hollow groove is provided at the bottom of the handle, which makes the inside of the handle hollow, reducing the weight of the handle and improving the shock absorption performance of the handle.

[0012] In one embodiment, a nut is provided inside the hollow groove, and the nut is connected to a bolt.

[0013] Furthermore, the tool head is a hammer, axe, or hoe, which increases the tool's applicability.

[0014] Preferably, the handle is injection molded from nylon material, and the nut is embedded in the handle during injection molding. The nylon material further improves the shock absorption performance of the handle.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: by using bolts to fix the wedge block inside the handle, the outer wall of the handle is tightened, which enhances the pressure between the outer wall of the handle and the inner wall of the tool head, improves the connection strength between the handle and the tool head, reduces the impact of the reaction force on the tool head during use, and reduces the possibility of the tool head loosening. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 2 is a top view of this utility model;

[0019] Figure 3 is a schematic diagram of the handle structure of this utility model;

[0020] Figure 4 is a cross-sectional view of the wedge block of this utility model;

[0021] Figure 5 is a perspective view of the wedge-shaped block of this utility model;

[0022] Figure 6 is a schematic diagram of the overall structure of the second embodiment of this utility model;

[0023] Figure 7 is a schematic diagram of the overall structure of the third embodiment of this utility model;

[0024] Figure 8 is a structural schematic diagram of Embodiment 4 of the wedge block of this utility model;

[0025] Figure 9 is a structural schematic diagram of an embodiment of the wedge block of this utility model;

[0026] Figure 10 is a structural schematic diagram of an embodiment of the wedge block of this utility model;

[0027] Figure 11 is a structural schematic diagram of an embodiment of the wedge block of this utility model;

[0028] In the diagram: 1. Handle; 11. Insertion part; 12. Grip part; 13. Groove; 14. Hollow groove; 2. Tool head; 21. Insertion hole; 22. Threaded hole; 3. Nut; 4. Wedge block; 41. Protrusion; 42. Bevel; 5. Bolt. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please refer to Figures 1 and 2. This utility model provides the following technical solution: a connection structure between a handle and a tool, including a handle 1 and a tool head 2. The handle 1 includes a plug portion 11 and a grip portion 12. The diameter of the plug portion 11 is smaller than the diameter of the grip portion 12. A plug hole 21 is provided at the center of the tool head 2, and the plug portion 11 is embedded in the plug hole 21. The tool head 2 is fitted onto the plug portion 11. A groove 13 is provided at the center of the plug portion 11, and a wedge-shaped block 4 is embedded in the groove 13. The size of the groove 13 is smaller than the size of the wedge-shaped block 4. After installation, the wedge-shaped block 4 will tighten the inner wall of the groove 13. A bolt 5 is provided at the center of the wedge-shaped block 4, and the bolt 5 connects to the handle 1, fixing the wedge-shaped block 4 in the groove 13. The outer surface of the wedge-shaped block 4 is formed with a feature for tightening the handle. After the wedge block 4 is installed in the groove 13, the end face of the wedge block 4 is flush with the end face of the handle 1. The installation of the wedge block 4 tightens the handle 1, so that the outer wall of the insertion part 11 is pressed against the inner wall of the insertion hole 21, thereby increasing the pressure between the handle 1 and the tool head 2, preventing the tool head 2 from loosening and affecting the normal use of the tool. Compared with the existing technical solution of fixing the hammer head to the end face of the handle with screws, the clamping force between the handle 1 and the tool head 2 in this solution is located between the sides of the two. By expanding the handle 1, the connection strength between the handle 1 and the tool head 2 is increased, which can reduce the impact of the upward reaction force during the strike on the handle 1 and the tool head 2, making the tool head 2 less likely to loosen and fall off.

[0032] As shown in Figures 4 and 5, in this embodiment, the wedge block 4 is elliptical in shape. The upper outer surface of the wedge block 4 is formed with a tapered slope. The upper tapered slope is used to tighten the grip 1. The lower surface is a vertical surface. The two sides of the wedge block 4 are formed with outward protrusions 41. The protrusions 41 are used to increase the contact area between the wedge block 4 and the grip 1 to prevent the wedge block 4 from rotating in the groove 13. A through hole is opened in the center of the wedge block 4 for installing the bolt 5. A countersunk hole is opened on the top surface of the wedge block 4, and the top of the bolt 5 is set in the countersunk hole.

[0033] As shown in Figure 3, a nut 3 is provided inside the handle 1. The nut 3 is a hexagonal nut and is threadedly connected to the bolt 5. A through hole is provided on the bottom surface of the groove 13. The nut 3 is placed in the through hole of the handle 1. The bolt 5 is inserted into the wedge block 4 and the handle 1 in sequence to fix the wedge block 4 in the groove 13. Preferably, the nut 3 can also be a non-circular nut of other shapes.

[0034] A hollow groove 14 is provided at the bottom of the handle 1. The hollow groove 14 is used to reduce the weight of the handle 1. At the same time, the hollow handle 1 can absorb some of the vibration transmitted by the tool head 2, thereby achieving shock absorption.

[0035] The tool head 2 can be a hammer, axe, or hoe, which increases the tool's versatility and allows for the attachment of various different tool heads 2 to the handle.

[0036] Preferred, the handle 1 is injection molded from nylon material. The nylon material further improves the shock resistance of the handle 1 and enhances the comfort of using the tool. The nut 3 is embedded in the handle 1 during injection molding. The handle 1 can also be made of fiber-reinforced nylon or thermoplastic elastomers such as polypropylene.

[0037] Example 2

[0038] As shown in Figure 6, the other structures of this embodiment are the same as those of Embodiment 1. The difference is that a threaded hole 22 is provided in the center of the handle 1, and the bolt 5 is threaded into the threaded hole 22. The wedge block 4 is fixed in the groove 13 by the threaded connection between the bolt 5 and the threaded hole 22.

[0039] Example 3

[0040] As shown in Figure 7, the other structures of this embodiment are the same as those of Embodiment 1. The difference is that a nut 3 is provided in the hollow groove 14, and the nut 3 is connected to the bolt 5. The wedge block 4 is fixed in the groove 13 by the bolt 5.

[0041] Example 4

[0042] As shown in Figure 8, in this embodiment, the wedge block 4 is teardrop-shaped, and the outer surface of the wedge block 4 has a taper in the height direction. A through hole is opened in the center of the wedge block 4 for installing bolts, and the surface of the wedge block 4 is smooth.

[0043] As shown in Figures 9, 10, and 11, the wedge block 4 can preferably be elliptical, circular, axe-shaped, teardrop-shaped, or square. Different shapes of wedge blocks 4 can be applied to different types of products, thereby ensuring that different tool heads 2 can be stably connected to the handle 1.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connection structure between a handle and a tool, comprising a handle and a tool head, characterized in that: The handle includes a plug part and a grip part. The tool head has a plug hole at its center, and the plug part is embedded in the plug hole. The end face of the plug part is flush with the end face of the tool head. The plug part has a groove at its center, and a wedge block is embedded in the groove. A bolt is inserted into the center of the wedge block, and the bolt is connected to the grip to fix the wedge block in the groove. The outer surface of the wedge block is formed with an inclined surface for tightening the grip. The wedge block is installed in the groove, and the outer wall of the plug part is tightened against the inner wall of the plug hole.

2. The connection structure between the handle and the tool according to claim 1, characterized in that: The wedge has a tapered outer surface in the height direction, and a through hole is provided in the center of the wedge for installing bolts.

3. The connection structure between the handle and the tool according to claim 1, characterized in that: The upper outer surface of the wedge block is formed with a tapered slope, the lower surface of the wedge block is a vertical surface, and a through hole is opened in the center of the wedge block for installing bolts.

4. The connection structure between the handle and the tool according to any one of claims 2 or 3, characterized in that: The wedge-shaped block also has outwardly protruding protrusions formed on its side surface.

5. The connection structure between the handle and the tool according to any one of claims 2 or 3, characterized in that: The wedge-shaped blocks can be circular, elliptical, axe-shaped, square, or teardrop-shaped.

6. The connection structure between the handle and the tool according to claim 5, characterized in that: A nut is provided inside the handle, and the nut is threadedly connected to the bolt. A through hole is provided on the bottom surface of the groove, and the nut is placed in the through hole.

7. The connection structure between the handle and the tool according to claim 5, characterized in that: The handle has a threaded hole in the center, and the bolt is threaded into the threaded hole.

8. The connection structure between the handle and the tool according to claim 1, characterized in that: The bottom of the handle has a hollow groove.

9. The connection structure between the handle and the tool according to claim 8, characterized in that: A nut is installed inside the hollow groove, and the nut is connected to a bolt.

10. The connection structure between the handle and the tool according to claim 1, characterized in that: The tool head is a hammer, axe, or hoe.

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