Shell of nail shooting device

Abstract

The utility model provides a shell of a nail shooting device, and belongs to the technical field of nail shooting tools. The shell structure solves the technical problem that an existing shell structure of the nail shooter is difficult to consider connection stability and disassembly and assembly convenience at the same time. The shell of the nail shooting device comprises a main sleeve and a connecting handle for a user to hold, the main sleeve is cylindrical, the periphery of the main sleeve is provided with a strip-shaped raised line, the raised line is circumferentially arranged around the outer edge of the main sleeve, the end part of the raised line is wedge-shaped and forms an inclined guide surface, the connecting handle is gun-shaped, the muzzle part of the connecting handle is cylindrical, and the end part of the connecting handle is wedge-shaped. The inner hole wall of the muzzle part is provided with a positioning groove and an annular convex shoulder, the end part of the main sleeve is inserted into the muzzle part and abuts against the convex shoulder along the axial direction, the convex strip is positioned, clamped and embedded into the positioning groove, and the guide surface is opposite to the edge of the edge of the positioning groove. The shell of the nail shooting device can be stable and convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model belongs to the technical field of nail gun tools and relates to a housing of a nail gun. Background Technology

[0002] A nail gun is a tool that uses the propellant gases from firing a nail cartridge as power to drive nails into a building structure. Nail guns are used in nail fastening technology, an advanced modern fastening technique that, compared to traditional methods, facilitates on-site and high-altitude operations, is quick to operate, and significantly reduces the labor intensity of construction workers.

[0003] For example, patent application number CN201920891201.3 discloses a power adjustment structure for a nail gun, which includes a nail tube, an adjustment tube, and a silencer tube. The nail tube passes through the adjustment tube and the outer side wall of the nail tube is in contact with the inner side wall of the adjustment tube. The nail tube has several through first adjustment holes, and the adjustment tube has several through second adjustment holes. Rotating the adjustment tube can connect the first adjustment holes with the corresponding second adjustment holes. The silencer tube is sleeved outside the adjustment tube, and there is a silencer cavity between the silencer tube and the adjustment tube.

[0004] The above structure can reduce the noise of the nail gun, but it has some shortcomings: the connecting handle and the main sleeve are connected by direct thread, which is convenient to disassemble, but the large impact vibration generated during the nail shooting process can easily cause the threaded fit to loosen. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in existing technologies by providing a nail gun housing. The technical problem this utility model aims to solve is: how to balance the connection stability and ease of assembly and disassembly of the nail gun housing structure.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A nail gun housing includes a main sleeve and a connecting handle for a user to grip. The main sleeve is cylindrical and characterized in that its outer periphery has a strip-shaped protrusion arranged circumferentially around the outer edge of the main sleeve. The end of the protrusion is wedge-shaped and forms an inclined guide surface. The connecting handle is pistol-shaped, with a cylindrical muzzle portion. The inner wall of the muzzle portion has a positioning groove and an annular shoulder. The end of the main sleeve is inserted into the muzzle portion and abuts against the shoulder axially. The protrusion is positioned and engaged in the positioning groove. The guide surface is opposite to the edge of the positioning groove.

[0008] The connecting handle at the tail of the nail gun is for the user to grip directly. The inner cavities of the main sleeve and the connecting handle house the nail gun components, and their connection ensures stable housing space. A raised rib is provided on the outer periphery of the main sleeve, with its end wedge-shaped to form a guide surface. A positioning groove and a shoulder are provided on the inner wall of the connecting handle. The main sleeve is inserted into the connecting handle and abuts against the shoulder, while the raised rib is engaged and embedded in the positioning groove for axial positioning. From a stability perspective, the larger area of ​​the raised rib forms a restraining contact with the inner wall of the positioning groove along the axial direction of the main sleeve. Combined with the limiting support effect of the shoulder on the end of the main sleeve, this effectively prevents engagement failure under impact, ensuring stable axial connection. Furthermore, even if the raised rib moves longitudinally within the positioning groove... It will not affect the axial connection, ensuring the stability of the connection structure. In terms of ease of assembly and disassembly, the pistol-shaped connecting handle is easier for the operator to hold and apply downward force. During assembly, the operator only needs to insert the end of the main sleeve into the inner hole of the connecting handle, and the end of the main sleeve abuts against the shoulder, indicating that it has been axially inserted. Then, apply force to rotate the main sleeve, and the protrusion will spring into the positioning groove when aligned with it. At this time, a clicking sound can be heard, indicating that the overall assembly is complete. The assembly process is convenient. When disassembling, apply force to rotate the main sleeve, so that the guide surface on the protrusion contacts the edge of the positioning groove, and the protrusion is guided by the guide surface to come out of the positioning groove. Then, the main sleeve can be pulled out and separated from the connecting handle. Disassembly is convenient, thus taking into account both stability and ease of assembly and disassembly.

[0009] In the housing of the aforementioned nail gun, the outer periphery of the main sleeve also has an annular shoulder, which abuts axially against the inner edge of the connecting handle. This allows operators to easily determine axial alignment by observing the abutment state between the shoulder and the connecting plate edge when they cannot identify whether the end of the main sleeve is abutting the protrusion during assembly, making assembly more convenient.

[0010] In the housing of the aforementioned nail gun, the positioning groove is located adjacent to the shoulder. The inner wall of the connecting handle also has a radially inwardly arched limiting flange, which is arranged along the edge of the positioning groove and is opposite to the shoulder along the axial direction of the main sleeve. Thus, the side of the shoulder and the limiting flange can form part of the inner wall of the limiting groove, allowing the sides of the protrusion to form a larger contact area with the inner wall of the limiting groove after the protrusion is embedded in the positioning groove. This effectively ensures the distribution of impact load and guarantees limiting strength and stability.

[0011] In the housing of the aforementioned nail gun, the inner wall of the connecting handle also has a clearance groove for the passage of the protruding strip. The clearance groove is strip-shaped and arranged axially along the inner hole of the connecting handle, and its inner end communicates with the positioning groove. To ensure a snap-fit ​​connection, the outer diameter of the protruding strip is slightly larger than the inner diameter of the connecting handle. This clearance groove provides a specific insertion path for the protruding strip, making insertion easier and preventing the protruding strip from abutting against the limiting edge, thus reducing assembly difficulty and making assembly convenient.

[0012] In the housing of the aforementioned nail gun, the positioning groove extends radially through the inner hole of the connector, forming a through-hole. This facilitates assembly by allowing the operator to observe from the outside whether the protrusion is properly embedded in the positioning groove, making assembly convenient. Simultaneously, it also facilitates disassembly by applying external force to allow the protrusion to disengage from the positioning groove.

[0013] In the housing of the aforementioned nail gun, there are multiple positioning grooves and protrusions, which are evenly distributed around the inner circumference of the connecting handle and the outer circumference of the main sleeve. This arrangement of multiple protrusions helps to make the connection more stable and to distribute the impact load more evenly.

[0014] In the housing of the aforementioned nail gun, the outer edge of the protruding strip is arc-shaped. This helps reduce the frictional resistance generated when the protruding strip slides along the inner wall of the connecting handle, ensuring smooth assembly.

[0015] Compared with the prior art, the advantages of this utility model are as follows:

[0016] The housing of this nail gun effectively prevents snap-fit ​​failure under impact, ensuring axial connection stability and structural stability. During assembly, the operator only needs to insert the end of the main sleeve into the muzzle of the connecting handle, so that the end of the main sleeve abuts against the shoulder, and then apply force to rotate the main sleeve to complete the assembly. During disassembly, apply force to rotate the main sleeve so that the guide surface on the protrusion contacts the edge of the positioning groove, and the protrusion is guided by the guide surface to disengage from the positioning groove. Then, the main sleeve can be pulled out. This combination ensures both stability and ease of assembly and disassembly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0018] Figure 2 This is a three-dimensional structural diagram of the main sleeve in this embodiment.

[0019] Figure 3 This is a three-dimensional structural diagram of the connecting handle in this embodiment.

[0020] Figure 4 This is a three-dimensional cross-sectional view of the connecting handle in this embodiment.

[0021] Figure 5This is a top view of the structure of this embodiment.

[0022] Figure 6 yes Figure 5 A schematic diagram of the AA cross section.

[0023] Figure 7 yes Figure 6 Enlarged view of section C in the image.

[0024] Figure 8 yes Figure 5 A schematic diagram of the BB cross-section.

[0025] In the diagram, 1. Connecting handle; 11. Positioning groove; 12. Shoulder; 13. Limiting flange; 14. Clearance groove; 15. Muzzle; 2. Main sleeve; 21. Protruding strip; 211. Guide surface; 22. Shoulder; 3. Heat shield. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] like Figure 1 As shown, this nail gun includes a connecting handle 1 at the tail, a main sleeve 2 in the middle, and a heat shield 3 at the head. The heat shield 3 is cylindrical and can be referenced from existing structures. The connecting handle 1 is pistol-shaped and the muzzle 15 of the connecting handle 1 is cylindrical. The main sleeve 2 is cylindrical and the end of the main sleeve 2 is inserted and axially positioned inside the muzzle 15.

[0028] like Figure 2 As shown, the outer periphery of the main sleeve 2 has four radially arched strip-shaped protrusions 21. The four protrusions 21 are evenly spaced around the outer edge of the main sleeve 2. The ends of the protrusions 21 are wedge-shaped and form inclined guide surfaces 211. The outer edge surface of the protrusions 21 is arc-shaped. The outer periphery of the main sleeve 2 also has an annular shoulder 22.

[0029] like Figure 3 , Figure 4 As shown, the inner wall of the connector 1 has four positioning grooves 11 and an annular shoulder 12. The positioning grooves 11 are located adjacent to the shoulder 12. The inner wall of the connector 1 also has a radially inwardly arched limiting flange 13, which is arranged along the edge of the positioning groove 11. The positioning groove 11 is a through hole that runs radially through the inner hole of the connector 1. The inner wall of the connector 1 also has four strip-shaped clearance grooves 14 that extend from the edge to the shoulder 12 and allow the protruding strips 21 to pass through. The inner ends of the clearance grooves 14 are connected to the positioning grooves 11.

[0030] like Figure 5 , Figure 6 , Figure 7As shown, the end of the main sleeve 2 is inserted into the inner hole of the connecting handle 1 and abuts against the shoulder 12 along the axial direction. The convex strip 21 is positioned and embedded in the positioning groove 11, and the shoulder 22 abuts against the edge of the inner hole of the connecting handle 1 along the axial direction. The limiting convex edge 13 is opposite to the shoulder 12 along the axial direction of the main sleeve 2.

[0031] like Figure 8 As shown, the guide surface 211 is opposite to the edge of the positioning groove 11 along the length direction of the protrusion 21.

[0032] During assembly and disassembly, the operator only needs to insert the end of the main sleeve 2 into the inner hole of the connecting handle 1, so that the end of the main sleeve 2 abuts against the shoulder 12, indicating that it has been axially inserted into place. Then, apply force to rotate the main sleeve 2 so that the protrusion 21 will spring into the positioning groove 11 when aligned with it. At this time, a clicking sound can be heard, indicating that the overall assembly is complete. When disassembling, apply force to rotate the main sleeve 2 so that the guide surface 211 on the protrusion 21 contacts the edge of the positioning groove 11, and the protrusion 21 is guided by the guide surface 211 to come out of the positioning groove 11. Then, the main sleeve 2 can be pulled out and separated from the connecting handle 1.

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A housing for a nail gun, comprising a main sleeve (2) and a connecting handle (1) for a user to grip, said main sleeve (2) being cylindrical, characterized in that, The outer periphery of the main sleeve (2) has a strip-shaped protrusion (21), which is arranged circumferentially around the outer edge of the main sleeve (2). The end of the protrusion (21) is wedge-shaped and forms an inclined guide surface (211). The connecting handle (1) is pistol-shaped, and the muzzle (15) of the connecting handle (1) is cylindrical. The inner wall of the muzzle (15) has a positioning groove (11) and an annular shoulder (12). The end of the main sleeve (2) is inserted into the muzzle (15) and abuts against the shoulder (12) axially. The protrusion (21) is positioned and embedded in the positioning groove (11). The guide surface (211) is opposite to the edge of the positioning groove (11).

2. The housing of the nail gun according to claim 1, characterized in that, The outer periphery of the main sleeve (2) also has an annular shoulder (22), which abuts against the inner hole of the connecting handle (1) along the axial direction.

3. The housing of the nail gun according to claim 1 or 2, characterized in that, The positioning groove (11) is located adjacent to the shoulder (12). The inner wall of the connecting handle (1) also has a limiting flange (13). The limiting flange (13) is arranged along the opening of the positioning groove (11). The limiting flange (13) is opposite to the shoulder (12) along the axial direction of the main sleeve (2).

4. The housing of the nail gun according to claim 3, characterized in that, The inner wall of the connecting handle (1) also has a clearance groove (14) for the protrusion (21) to pass through. The clearance groove (14) is arranged in a strip shape along the axial direction of the inner hole of the connecting handle (1). The inner end of the clearance groove (14) is connected to the positioning groove (11).

5. The housing of the nail gun according to claim 1 or 2, characterized in that, The positioning groove (11) extends radially through the inner hole of the connecting handle (1) in the form of a through hole.

6. The housing of the nail gun according to claim 1 or 2, characterized in that, There are multiple positioning grooves (11) and protrusions (21), which are evenly distributed around the inner hole of the connecting handle (1) and the outer edge of the main sleeve (2).

7. The housing of the nail gun according to claim 1 or 2, characterized in that, The outer edge of the protrusion (21) is arc-shaped.

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