Split type anti-falling needle striking tube

Abstract

The utility model relates to a split type anti-drop needle striking tube, which comprises a needle striking tube main body, the needle striking tube main body comprises a seat sleeve part and a needle sleeve part which are detachably connected, one end of the seat sleeve part is provided with a connecting hole, the connecting hole is provided with at least one abdicating notch, the bottom of the connecting hole is provided with a limiting ring groove, and the needle sleeve part is provided with a pin hole. One end of the needle sleeve part is provided with a connecting end connected into the connecting hole, the connecting end is provided with a limiting step matched and corresponding to the receding notch, and the inner wall of the connecting hole is provided with an anti-disengaging step. The anti-falling step can interact with the limiting step connected into the connecting hole so as to prevent the needle tube part connected into the connecting hole from rotating relative to the needle sleeve part. The anti-falling step is additionally arranged on the inner wall of the connecting hole of the seat sleeve part, so that the problem of unstable connection possibly caused by rotation of the needle sleeve part in the long-term repeated percussion process in the traditional design is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceiling fixers, in particular to a split anti-dropping firing pin tube. Background Art

[0002] The ceiling fixer is a product of modern nail-shooting fastening technology. It can fire nails and belongs to direct consolidation technology. It is an essential hand tool for carpentry, construction, etc. When the nail shooter is working, it uses the gunpowder gas produced by firing blank bullets as power to drive nails into the building.

[0003] At present, the firing pin tube of the ceiling fixture generally adopts an integrated structure. In order to improve the practicality of the firing pin tube and facilitate the separate replacement of the seat cover part and the needle cover part of the firing pin tube, our company has researched and designed a split firing pin tube, such as a split firing pin tube disclosed in application number 2022236028512. In the previous generation of products, for the structure connected by the limit step and the limit ring groove, it was found in actual use that after a long period of firing, the needle cover part rotated relative to the seat cover part. In rare cases, when the limit step is aligned with the clearance notch, it is easy to cause the needle cover part and the seat cover part to loosen and detach. Therefore, the connection structure between the needle cover part and the seat cover part has the problem of unstable connection, which affects the stability and safety of the firing pin tube. For this reason, the present application proposes a split anti-drop firing pin tube. Utility Model Content

[0004] In view of the deficiencies in the background technology, the utility model provides a split anti-dropping firing pin tube.

[0005] The technical solution adopted by the utility model is: a split anti-dropping firing pin tube, including a firing pin tube body, the firing pin tube body including a seat cover part and a needle cover part that are detachably connected, a connecting hole is provided on one end of the seat cover part, at least one making way notch is provided on the connecting hole, a limiting ring groove is provided on the bottom of the connecting hole, a connecting end connected to the above-mentioned connecting hole is provided on one end of the needle cover part, a limiting step that is adapted and corresponding to the making way notch is provided on the connecting end, an anti-dropping step is provided on the inner wall of the connecting hole, the anti-dropping step can interact with the limiting step connected to the connecting hole to prevent the needle tube part connected to the connecting hole from rotating relative to the needle cover part.

[0006] Furthermore, the seat cover portion includes a connecting section and a sleeve, one end of the connecting section is provided with an external thread section, and one end of the sleeve is provided with an internal thread hole threadedly connected to the external thread section.

[0007] Furthermore, the connecting hole is arranged on the end surface of the connecting section.

[0008] Furthermore, the connecting section is provided with a through hole through which the firing pin passes.

[0009] Furthermore, a positioning notch is provided on one end of the seat sleeve portion away from the needle sleeve portion.

[0010] Furthermore, the anti-slip step is located on the inner wall of the connecting hole below the clearance notch.

[0011] The beneficial effects of the utility model are:

[0012] 1. Enhanced connection stability: By adding an anti-drop step to the inner wall of the connection hole of the seat sleeve, the problem of unstable connection caused by the rotation of the needle sleeve during long-term repeated firing in the traditional design is effectively solved. The anti-drop step cooperates with the limit step of the needle sleeve to prevent the limit step from accidentally aligning with the clearance gap, thereby significantly improving the connection firmness and torsion resistance of the internal components of the firing pin tube.

[0013] 2. Improved safety: The new design reduces the potential safety hazards caused by looseness between the firing pin tube components, ensures the safety of the ceiling fixture working under high-speed operation and high-pressure environment, avoids safety accidents that may be caused by failure of the firing pin tube, and improves the overall safety of the nail fastening operation.

[0014] 3. Reduce maintenance costs and frequency: Since the new structure can prevent accidental separation between the needle sleeve and the seat sleeve, it extends the service life of the firing pin tube and reduces the cost of frequent replacement due to damage to the firing pin tube assembly. It also reduces downtime for maintenance and improves work efficiency.

[0015] 4. Simplified replacement operation: Even after long-term use, the new anti-drop design ensures that users can replace damaged parts more conveniently and efficiently. Only the damaged part needs to be replaced, and there is no need to replace the entire firing pin tube as a whole, which greatly reduces the difficulty of maintenance and replacement costs.

[0016] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0017] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the seat cover part.

[0021] Figure 4 It is a structural diagram of the connecting section.

[0022] Figure 5 It is a schematic diagram of the structure of the needle sleeve part.

[0023] Figure 1-5 In: 1. Firing pin tube body; 2. Seat cover part; 3. Needle cover part; 4. Connecting hole; 5. Notch for making way; 6. Limiting ring groove; 7. Connecting end; 8. Limiting step; 9. Anti-slip step; 10. Connecting section; 11. Sleeve; 12. External thread section; 13. Internal screw hole; 14. Through hole; 15. Positioning notch. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] The utility model provides a split anti-dropping firing pin tube.

[0027] In this embodiment, refer to Figure 1-5 The split anti-dropping firing pin tube comprises a firing pin tube body 1, wherein the firing pin tube body 1 comprises a seat cover part 2 and a needle cover part 3 which are detachably connected, a connecting hole 4 is provided on one end of the seat cover part, at least one making way notch 5 is provided on the connecting hole 4, a limiting ring groove 6 is provided at the bottom of the connecting hole, a connecting end 7 connected to the connecting hole is provided on one end of the needle cover part, a limiting step 8 which is adapted and corresponding to the making way notch is provided on the connecting end, an anti-dropping step 9 is provided on the inner wall of the connecting hole, and the anti-dropping step can interact with the limiting step connected to the connecting hole to prevent the needle tube part connected to the connecting hole from rotating relative to the needle cover part.

[0028] The utility model provides an anti-dropping step on the inner wall of the connecting hole, and the anti-dropping step cooperates with the limiting step of the needle sleeve part, that is, the anti-dropping step is against the limiting step, thereby preventing the needle sleeve part from rotating, effectively solving the problem of loose connection or even falling off of the firing pin tube due to accidental rotation during use, improving the overall stability and safety of the firing pin tube, and ensuring the reliability and accuracy of the shooting process.

[0029] Specifically, the seat cover portion includes a connecting section 10 and a sleeve 11, one end of the connecting section is provided with an external thread section 12, and one end of the sleeve is provided with an internal thread hole 13 threadedly connected to the external thread section.

[0030] The seat cover part of the present application includes a threaded connection section and a sleeve, so that after the connection section is worn out after multiple disassembly and assembly, the connection section can be replaced separately, thereby reducing the user's use cost.

[0031] Specifically, the connecting hole is arranged on the end face of the connecting section; the connecting section is provided with a through hole 14 for the firing pin to pass through; and a positioning notch 15 is provided on one end of the seat sleeve part away from the needle sleeve part.

[0032] In the above technical solution, a positioning notch is provided on the seat cover portion for matching with the firing cap and positioning and matching the firing cap.

[0033] Specifically, the anti-drop step is located on the inner wall of the connecting hole below the clearance notch.

[0034] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A split anti-dropping firing pin tube, comprising a firing pin tube body, the firing pin tube body comprising a detachably connected seat cover part and a needle cover part, one end of the seat cover part is provided with a connecting hole, the connecting hole is provided with at least one clearance notch, a limiting ring groove is provided at the bottom of the connecting hole, one end of the needle cover part is provided with a connecting end connected to the connecting hole, the connecting end is provided with a limiting step adapted and corresponding to the clearance notch, characterized in that: An anti-dropping step is provided on the inner wall of the connecting hole, and the anti-dropping step can interact with the limiting step connected into the connecting hole to prevent the needle tube part connected into the connecting hole from rotating relative to the needle sleeve part.

2. The split anti-dropping firing pin tube according to claim 1 is characterized in that: The seat cover part includes a connecting section and a sleeve. One end of the connecting section is provided with an external thread section, and one end of the sleeve is provided with an internal thread hole threadedly connected to the external thread section.

3. The split anti-dropping firing pin tube according to claim 2 is characterized in that: The connecting hole is arranged on the end surface of the connecting section.

4. The split anti-dropping firing pin tube according to claim 2 is characterized in that: The connecting section is provided with a through hole through which the firing pin passes.

5. The split anti-dropping firing pin tube according to claim 1 is characterized in that: A positioning notch is arranged on one end of the seat sleeve part away from the needle sleeve part.

6. The split anti-dropping firing pin tube according to claim 1 is characterized in that: The anti-dropping step is located on the inner wall of the connecting hole below the clearance notch.

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