Nut forcible entry tool

Abstract

The utility model discloses a nut forcible entry tool which comprises a tool handle, a tool bit and a screw rod, one end of the tool handle is provided with a nut containing cavity, the tool bit is axially installed in the tool handle in a sliding mode, and the head end of the tool bit extends into the nut containing cavity. One end of the screw rod is axially connected to the other end of the tool handle in a threaded mode and abuts against the tail end of the tool bit, a tool bit installation groove matched with the tool bit in width is formed in the surface of the tool handle, and the tool bit is installed in the tool handle through the tool bit installation groove. According to the nut forcible entry tool, an existing nut forcible entry tool is improved, the tool bit installation groove capable of replacing the tool bit is formed in the surface of the tool handle, the screw does not need to be disassembled when the tool bit is replaced, the tool bit can be directly installed through the tool bit installation groove, disassembly and assembly operation is convenient, rapid replacement of the tool bit is facilitated, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to a demolition tool, and more particularly to a nut demolition tool. Background Technology

[0002] Nuts, after prolonged use, become difficult to loosen due to rust and other reasons, requiring the use of breaking tools for dismantling. However, existing breaking tools suffer significant wear and tear during use, with the cutting head prone to damage. Existing technology, CN 218698339 U, discloses a tool for removing rusted nuts. This tool includes a tool holder, a moving cutting head, and a drive screw. The head of the tool holder has a limiting hole, and the drive screw is threaded to the tail of the tool holder. In use, the nut to be removed is placed in the limiting hole, and then the drive screw is screwed in, pushing the moving cutting head towards the nut. The cutting head cuts the nut, achieving the purpose of removing it. However, the cutting head is prone to damage during subsequent use. When disassembling and reassembling the cutting head, the drive screw must be disassembled, the moving cutting head removed, the cutting head replaced, and then the drive screw reinstalled, making cutting head replacement complex, time-consuming, and labor-intensive. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a nut breaking tool that is easy to operate and facilitates quick replacement of the cutting head.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a nut breaking tool, including a tool handle, a cutting head, and a screw. One end of the tool handle is provided with a nut cavity. The cutting head is axially slidably installed in the tool handle, and the head end of the cutting head extends into the nut cavity. One end of the screw is axially threaded to the other end of the tool handle and abuts against the tail end of the cutting head. The surface of the tool handle is provided with a cutting head mounting groove with a width adapted to the cutting head. The cutting head is installed in the tool handle through the cutting head mounting groove.

[0005] As a preferred technical solution, the tool handle is provided with a cutting head cavity and a screw cavity. One end of the cutting head cavity is connected to the nut cavity, and the other end of the cutting head cavity is connected to the screw cavity. The cutting head is slidably installed in the cutting head cavity, and one end of the screw is threadedly connected to the screw cavity. The cutting head mounting groove is connected to the cutting head cavity.

[0006] As a preferred technical solution, the cutting head mounting groove is provided on the tool handle at one end near the nut cavity, so that one end of the cutting head mounting groove extends into the nut cavity.

[0007] As a preferred technical solution, the length of the cutter head mounting groove is less than the length of the cutter head, and the sum of the length of the cutter head mounting groove and the diameter of the nut cavity is greater than or equal to the length of the cutter head.

[0008] As a preferred technical solution, the end of the cutter head mounting groove near the nut cavity has a gap with the nut cavity.

[0009] As a preferred technical solution, the length of the cutter head mounting groove is greater than or equal to the length of the cutter head.

[0010] As a preferred technical solution, one end of the tool handle is provided with a nut locking member, and the nut cavity is radially disposed within the nut locking member.

[0011] As a preferred technical solution, an axial positioning structure is provided between the cutter head and the cutter head cavity.

[0012] As a preferred technical solution, the tip of the cutter head is a V-shaped convex head, a V-shaped concave head, or a flat head.

[0013] As a preferred technical solution, the frictional contact between the cutting head and the screw is a surface contact, a line contact, or a point contact.

[0014] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: This utility model improves the existing nut breaking tool by providing a replaceable cutting head mounting groove on the surface of the tool handle. When replacing the cutting head, there is no need to disassemble the screw rod. The cutting head can be directly installed through the cutting head mounting groove, which makes the disassembly and assembly operation convenient, facilitates the quick replacement of the cutting head, and saves time and effort. Attached Figure Description

[0015] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0016] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0017] Figure 2 This is a split diagram of Embodiment 1 of this utility model;

[0018] Figure 3 This is a top view of Embodiment 1 of this utility model;

[0019] Figure 4 This is a cross-sectional view of Embodiment 1 of this utility model;

[0020] Figure 5 This is a schematic diagram of the tool handle according to Embodiment 1 of this utility model;

[0021] Figure 6 This is a schematic diagram of the installation of the cutting head in Embodiment 1 of this utility model. Figure 1 ;

[0022] Figure 7 This is a schematic diagram of the installation of the cutting head in Embodiment 1 of this utility model. Figure 2 ;

[0023] Figure 8 This is a schematic diagram of the V-shaped protrusion of Embodiment 1 of this utility model;

[0024] Figure 9 This is a schematic diagram of the V-shaped concave head of Embodiment 1 of this utility model;

[0025] Figure 10 This is a schematic diagram of the installation of the cutter head in Embodiment 2 of this utility model;

[0026] In the diagram: 1-tool handle; 2-cutter head; 3-screw; 4-nut locking element; 5-nut cavity; 6-cutter head cavity; 7-screw cavity; 8-cutter head mounting groove; 9-protrusion; 10-groove. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0028] Example 1:

[0029] like Figures 1 to 5 As shown, a nut-breaking tool includes a tool handle 1, a cutting head 2, and a screw 3. One end of the tool handle 1 is provided with a nut locking member 4, which has a nut cavity 5 for fitting around the nut to be broken. The tool handle 1 has an axially arranged cutting head cavity 6 and a screw cavity 7. The screw cavity 7 has a threaded section. One end of the cutting head cavity 6 communicates with the nut cavity 5, and the other end communicates with the screw cavity 7. The cutting head 2 is axially slidably mounted within the cutting head cavity 6, and its tip extends to... Inside the nut cavity 5, one end of the screw 3 is axially threaded into the screw cavity 7 and abuts against the tail end of the cutter head 2. The other end of the screw 3 is located outside the tool handle 1 and has a rotating part. The above structure is basically the same as the structure of the nut breaking tool in the prior art. The working principle is as follows: When in use, the nut cavity 5 is sleeved on the nut to be broken, and then the rotating part is rotated to make the screw 3 rotate, pushing the cutter head 2 to slide along the cutter head cavity 6 for feeding. The cutter head 2 breaks one side of the nut under slow feeding.

[0030] This embodiment improves upon the above structure; see [link / reference]. Figures 1 to 5A cutting head mounting groove 8, with a width adapted to the cutting head 2, is provided on the surface of the tool handle 1. The cutting head mounting groove 8 communicates with the cutting head cavity 6, and the cutting head 2 can be installed in the tool handle 1 through the cutting head mounting groove 8. When replacing the cutting head 2, it is no longer necessary to disassemble the screw 3. The cutting head 2 can be directly installed through the cutting head mounting groove 8, which is convenient for disassembly and assembly, facilitates quick replacement of the cutting head 2, and saves time and effort.

[0031] See Figure 5 The cutting head mounting groove 8 is located on the tool handle 1 near the end of the nut cavity 5, so that one end of the cutting head mounting groove 8 extends into the nut cavity 5. The nut cavity 5 communicates with the cutting head mounting groove 8 for use in conjunction with it to complete the quick assembly and disassembly of the cutting head 2.

[0032] See Figure 6 The length of the cutting head mounting groove 8 is less than the length of the cutting head 2, and the sum of the length of the cutting head mounting groove 8 and the diameter of the nut cavity 5 is greater than or equal to the length of the cutting head 2. During installation, the cutting head 2 enters radially into the cutting head cavity 6 from the positions of the nut cavity 5 and the cutting head mounting groove 8, and then moves axially towards the screw 3 along the cutting head cavity 6. After installation, the tail end of the cutting head 2 is located inside the tool handle 1. The tool handle 1 limits the tail end of the cutting head 2 to prevent it from radially dislodging. The installation direction of the cutting head 2 is shown in [reference needed]. Figure 6 The direction is indicated by the middle arrow. In use, the nut to be disassembled is fitted inside the nut cavity 5, and the tip of the cutter head 2 abuts against the surface of the nut to be disassembled, preventing the cutter head 2 from falling out during use. When disassembly is required, the cutter head 2 is first slid into the nut cavity 5, and then radially removed from the nut cavity 5 and the cutter head mounting groove 8. During disassembly, there is no need to rotate or disassemble the screw 3, making the disassembly and assembly process of the cutter head 2 relatively simple.

[0033] See Figure 6 An axial positioning structure is provided between the cutter head 2 and the cutter head cavity 6. The axial positioning structure includes a protrusion 9 on the surface of the cutter head cavity 6 and a groove 10 on the surface of the cutter head 2. Both the protrusion 9 and the groove 10 are arranged along the length direction of the cutter head 2. The protrusion 9 and the groove 10 are adapted to ensure that the cutter head 2 slides only along the axial direction.

[0034] See Figure 7 In another disassembly and assembly method of this embodiment, the cutting head 2 is inserted into the screw cavity 7 of the tool handle 1, and then the threaded rod 3 is screwed in. The installation method is the same as the disassembly and assembly method in the prior art. However, this embodiment has two different disassembly and assembly methods compared with the prior art, which can be used to meet different installation requirements.

[0035] The tip of the blade 2 is a V-shaped convex head, a V-shaped concave head, or a flat head. Because blade 2 is easy to replace, this tool can be used as a demolition tool or a wrench by changing the blade 2. See also... Figure 8 For the V-shaped convex head cutter head 2, see [reference]. Figure 9 Cutting head 2 is a V-shaped concave head.

[0036] The nut cavity 5 can be a round hole or a polygonal hole to meet different usage requirements.

[0037] The frictional contact between the cutter head 2 and the screw 3 can be surface contact, line contact, or point contact, ensuring that the cutter head 2 slides and feeds during the rotation of the screw 3.

[0038] Example 2:

[0039] This embodiment is basically the same in structure as Embodiment 1, the main difference being the position of the cutter head mounting groove 8. In this embodiment, see... Figure 10 The cutter head mounting groove 8 has a gap between its end near the nut cavity 5 and the nut cavity 5. The length of the cutter head mounting groove 8 is greater than or equal to the length of the cutter head 2. When installing the cutter head 2, the screw 3 must first be screwed outwards to the rear side of the cutter head mounting groove 8 to avoid obstruction. Then, the cutter head 2 is directly installed radially into the cutter head cavity 6 through the cutter head mounting groove 8, and then axially slid towards the nut cavity 5. Finally, the screw 3 is screwed in to abut against the tail end of the cutter head 2. Because the cutter head mounting groove 8 and the nut cavity 5 are not connected due to the gap, the end of the cutter shank near the nut cavity 5 can limit the cutter head 2, preventing it from radially dislodging. When disassembling the cutter head 2, the screw 3 is first screwed outwards, and then the cutter head 2 is slid backwards and dislodged from the cutter head mounting groove 8.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nut-breaking tool, comprising a tool handle, a cutting head, and a screw, wherein one end of the tool handle is provided with a nut cavity, the cutting head is axially slidably mounted within the tool handle, the head end of the cutting head extends into the nut cavity, and one end of the screw is axially threaded to the other end of the tool handle and abuts against the tail end of the cutting head, characterized in that: The surface of the tool handle is provided with a cutting head mounting groove whose width is adapted to the cutting head, and the cutting head is mounted in the tool handle through the cutting head mounting groove.

2. The nut-breaking tool as described in claim 1, characterized in that: The tool handle has a cutter head cavity and a screw cavity. One end of the cutter head cavity is connected to the nut cavity, and the other end of the cutter head cavity is connected to the screw cavity. The cutter head is slidably installed in the cutter head cavity. One end of the screw is threadedly connected to the screw cavity. The cutter head mounting groove is connected to the cutter head cavity.

3. The nut-breaking tool as described in claim 1, characterized in that: The cutting head mounting groove is located on the tool handle at one end near the nut cavity, so that one end of the cutting head mounting groove extends into the nut cavity.

4. The nut-breaking tool as described in claim 3, characterized in that: The length of the cutting head mounting groove is less than the length of the cutting head, and the sum of the length of the cutting head mounting groove and the diameter of the nut cavity is greater than or equal to the length of the cutting head.

5. A nut-breaking tool as described in claim 1, characterized in that: The end of the cutter mounting groove near the nut cavity has a gap with the nut cavity.

6. A nut-breaking tool as described in claim 5, characterized in that: The length of the cutter head mounting groove is greater than or equal to the length of the cutter head.

7. A nut-breaking tool as described in claim 1, characterized in that: One end of the tool handle is provided with a nut locking element, and the nut cavity is radially disposed within the nut locking element.

8. A nut-breaking tool as described in claim 2, characterized in that: An axial positioning structure is provided between the cutter head and the cutter head cavity.

9. A nut-breaking tool as described in claim 1, characterized in that: The tip of the cutter head is a V-shaped convex head, a V-shaped concave head, or a flat head.

10. A nut-breaking tool as described in any one of claims 1 to 9, characterized in that: The frictional contact between the cutting head and the screw can be surface contact, line contact, or point contact.

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