Connecting structure of grab handle and tool

Abstract

The utility model discloses a grab handle and tool connecting structure which comprises a grab handle and a tool head, the grab handle comprises an inserting portion and a handle portion, an inserting hole is formed in the center of the tool head, the inserting portion is embedded in the inserting hole, the end face of the inserting portion is flush with the end face of the tool head, an embedding groove is formed in the center of the inserting portion, and the handle portion is embedded in the embedding groove. A wedge-shaped block is embedded in the caulking groove, a bolt is inserted in the center of the wedge-shaped block, the bolt is connected with the grab handle, the wedge-shaped block is fixed in the caulking groove, an inclined face used for expanding the grab handle is formed on the outer surface of the upper portion of the wedge-shaped block, the wedge-shaped block is pressed on the inner wall of the caulking groove, and the outer wall of the inserting part is expanded on the inner wall of the inserting hole. The tool head solves the problem that an existing tool head is prone to loosening and falling off, the wedge block is installed through the bolt, the outer wall of the grab handle is expanded, the pressure between the outer wall of the grab handle and the inner wall of the tool head is increased, and the connection strength between the grab handle and the tool head is improved.

Description

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 an embodiment, a nut is arranged in the handle, the nut is threadedly connected with the bolt, a through hole is formed in the bottom surface of the embedding groove, the nut is arranged in the through hole, and the bolt is fixed through the nut, so that the bolt connection is more convenient.

[0010] In an embodiment, a threaded hole is formed in the center of the handle, and the bolt is threadedly connected in the threaded hole.

[0011] Further, a hollow groove is formed in the bottom of the handle, the inside of the handle is hollow, the weight of the handle is reduced, and the shock absorption performance of the handle is improved.

[0012] In an embodiment, a nut is arranged in the hollow groove, and the nut is connected with the bolt.

[0013] Further, the tool head is a hammer head, an axe head or a hoe head, and the application range of the tool is improved.

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

[0015] Compared with the prior art, the utility model has the beneficial effects that: the wedge block is fixed in the handle through the installation of the bolt, the outer wall of the handle is expanded tightly, the pressure between the outer wall of the handle and the inner wall of the tool head is enhanced, the connection strength between the handle and the tool head is improved, the influence of the reaction force on the tool head during the use of the tool head is reduced, and the possibility of loosening of the tool head is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the utility model, constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0017] Figure 1 It is the sectional view of the overall structure of the utility model;

[0018] Figure 2 It is the top view of the utility model;

[0019] Figure 3 It is the structural schematic view of the handle of the utility model;

[0020] Figure 4 It is the sectional view of the wedge block of the utility model;

[0021] Figure 5 It is the perspective view of the wedge block of the utility model;

[0022] Figure 6It is the whole structure schematic view of the second embodiment of the utility model;

[0023] Figure 7 It is the whole structure schematic view of the third embodiment of the utility model;

[0024] Figure 8 It is the structure schematic view of the fourth embodiment of the wedge-shaped block of the utility model;

[0025] Figure 9 It is the structure schematic view of an embodiment of the wedge-shaped block of the utility model;

[0026] Figure 10 It is the structure schematic view of an embodiment of the wedge-shaped block of the utility model;

[0027] Figure 11 It is the structure schematic view of an embodiment of the wedge-shaped block of the utility model;

[0028] In the figure: 1, handle; 11, plug-in part; 12, handle part; 13, embedding groove; 14, hollow groove; 2, tool head; 21, plug-in hole; 22, screw hole; 3, nut; 4, wedge-shaped block; 41, protrusion; 42, inclined surface; 5, bolt. DETAILED DESCRIPTION

[0029] 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Embodiment one

[0031] Please refer to Figure 1 and Figure 2The utility model provides technical scheme: the connecting structure of handle and tool, including handle 1 and tool head 2, handle 1 includes inserting part 11 and handle part 12, the diameter of inserting part 11 is less than the diameter of handle part 12, the centre of tool head 2 is provided with inserting hole 21, inserting part 11 is embedded in inserting hole 21, tool head 2 is set on inserting part 11, the centre of inserting part 11 is provided with embedding slot 13, embedding slot 13 is embedded with wedge 4, the size of embedding slot 13 is less than the size of wedge 4, wedge 4 installs and will be tight the inner wall of embedding slot 13, the centre of wedge 4 is provided with bolt 5, bolt 5 is connected with handle 1, bolt 5 will wedge 4 be fixed in embedding slot 13, the outer surface of wedge 4 is formed with inclined surface 42 for tight handle 1, after wedge 4 is installed in embedding slot 13, the end surface of wedge 4 is flush with the end surface of handle 1, the installation of wedge 4 tight handle 1, make the outer wall of inserting part 11 be pressed on the inner wall of inserting hole 21, from the pressure of handle 1 with tool head 2 is increased, avoid the loosening between tool head 2 and handle 1, influence the normal use of tool, relative to the prior art through the technical scheme of screw and hammer head fixed on the end surface of handle, the pressure between handle 1 and tool head 2 of the present scheme is located between the side of both, through the form of handle 1 expansion, increase the connection strength between handle 1 and tool head 2, can reduce the influence of the upward reaction force on handle 1 and tool head 2 when knocking, make tool head 2 not easy to loosen and fall off.

[0032] As Figure 4 And 5 As shown in the embodiment, the whole of wedge 4 is oval, the outer surface on the upper part of wedge 4 is formed with tapered inclined surface, the upper tapered inclined surface is used for tight handle 1, the lower surface is vertical surface, the both sides of wedge 4 are formed with outward convex projection 41, the projection 41 is used for increasing the contact area between wedge 4 and handle 1, avoid the rotation of wedge 4 in embedding slot 13, the centre of wedge 4 is provided with through hole, the through hole is used for installing bolt 5, the top surface of wedge 4 is provided with counterbore, the top of bolt 5 is arranged in the counterbore.

[0033] As Figure 3 As shown, the handle 1 is provided with nut 3, the nut 3 is hexagonal nut, the nut 3 is threadedly connected with bolt 5, the bottom surface of embedding slot 13 is provided with through hole, the nut 3 is arranged in the through hole of handle 1, the bolt 5 is sequentially inserted in wedge 4 and handle 1, wedge 4 is fixed in embedding slot 13, preferably, the nut 3 can also be other shape of special-shaped nut.

[0034] The bottom of handle 1 is provided with hollow groove 14, the hollow groove 14 is used for reducing the weight of handle 1, hollow handle 1 can absorb part of the vibration transmitted by tool head 2, realize shock absorption.

[0035] The tool head 2 is a hammer head or an axe head or a hoe head, which improves the application range of the tool, and various tool heads 2 can be fixed on the handle.

[0036] Preferably, the handle 1 is made of nylon and is injection molded, the nylon further improves the shock resistance of the handle 1 and improves the comfort of the tool, and the nut 3 is embedded in the handle 1 during injection molding; the handle 1 can also be made of fiber-reinforced nylon or polypropylene or other thermoplastic elastomers.

[0037] Example Two

[0038] As shown in Figure 6 , the other structures of this embodiment are the same as those of Example One, and the difference is that a threaded hole 22 is formed in the center of the handle 1, and the bolt 5 is threadedly connected in the threaded hole 22, and the wedge-shaped block 4 is fixed in the embedding groove 13 through the threaded connection of the bolt 5 and the threaded hole 22.

[0039] Example Three

[0040] As shown in Figure 7 , the other structures of this embodiment are the same as those of Example One, and the difference is that the hollow groove 14 is provided with the nut 3, the nut 3 is connected with the bolt 5, and the wedge-shaped block 4 is fixed in the embedding groove 13 by the bolt 5.

[0041] Example Four

[0042] As shown in Figure 8 , in this embodiment, the wedge-shaped block 4 is in the shape of a water droplet, the outer surface of the wedge-shaped block 4 in the height direction has a taper, a through hole is formed in the center of the wedge-shaped block 4 for mounting a bolt, and the surface of the wedge-shaped block 4 is smooth.

[0043] As shown in Figure 9 , 10 , 11, preferably, the wedge-shaped block 4 can be in the shape of an ellipse, a circle, an axe, a water droplet, or a square, and the wedge-shaped block 4 in different shapes is applied to different types of products, so that different tool heads 2 can be stably connected to the handle 1.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A connection between a handle and a tool comprising a handle and a tool head, characterized in that: The handle comprises a plug-in part and a handle part, the center of the tool head is provided with a plug-in hole, the plug-in part is embedded in the plug-in hole, the end surface of the plug-in part is flush with the end surface of the tool head, the center of the plug-in part is provided with an embedding groove, a wedge-shaped block is embedded in the embedding groove, a bolt is inserted into the center of the wedge-shaped block, the bolt is connected with the handle, the wedge-shaped block is fixed in the embedding groove, a bevel for expanding the handle is formed on the outer surface of the wedge-shaped block, the wedge-shaped block is installed in the embedding groove, and the outer wall of the plug-in part is expanded on the inner wall of the plug-in hole.

2. The handle-to-tool connection structure according to claim 1, characterized in that: The wedge-shaped block is provided with a taper on the outer surface in the height direction, and the center of the wedge-shaped block is provided with a through hole for installing the bolt.

3. The handle-to-tool connection structure according to claim 1, characterized in that: The outer surface of the upper part of the wedge-shaped block is formed with a bevel with a taper, the lower surface of the wedge-shaped block is a vertical surface, and the center of the wedge-shaped block is provided with a through hole for installing the bolt.

4. A handle-to-tool connection according to any one of claims 2 or 3, characterised in that: The side surface of the wedge-shaped block is also formed with an outward convex protrusion.

5. The handle-to-tool connection of any one of claims 2 or 3, wherein: The shape of the wedge-shaped block is circular, oval, axe-shaped, square or water-drop-shaped.

6. The handle-to-tool connection structure according to claim 5, characterized in that: A nut is arranged in the handle, the nut is threadedly connected with the bolt, a through hole is formed in the bottom surface of the embedding groove, and the nut is arranged in the through hole.

7. The handle-to-tool connection structure according to claim 5, characterized in that: A threaded hole is formed in the center of the handle, and the bolt is threadedly connected in the threaded hole.

8. The handle-to-tool connection structure according to claim 1, characterized in that: A hollow groove is formed in the bottom of the handle.

9. The handle-to-tool connection structure according to claim 8, characterized in that: A nut is arranged in the hollow groove, and the nut is connected with the bolt.

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

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