Nail fixing device with easy-to-take percussion assembly

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By simplifying the structure of the nail fixer, eliminating unnecessary grooves and adding limit surfaces, the problems of inconvenient disassembly of the existing nail fixer and easy damage to the firing spring are solved, achieving a longer service life and higher reliability.

CN222570666UActive Publication Date: 2025-03-07GUANGDONG SHENGDEOU FASTENER CO LTD

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Patent Information

Application Number: CN202421016936.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-11
Publication Date: 2025-03-07
Estimated Expiration: 2034-05-11

AI Technical Summary

Technical Problem

The existing nail fixing device has problems such as inconvenient disassembly, short firing needles, poor firing rate, easy damage to the firing spring and easy blockage of the spring base during production and use.

Method used

A firing component easy-to-release nail fixing device is designed. By canceling the grooves on the original firing needle sleeve, using the inner limit surface of the outer shell, canceling the spring base, extending the free movement space of the firing needle seat spring, and setting a firing surface and limit surface to share the parts and processing process.

Benefits of technology

It achieves more convenient disassembly and longer service life, reduces the difficulty of parts and processing, and improves the reliability and firing efficiency of the equipment.

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Abstract

The utility model discloses a nail fixer with a firing component easy to take, which relates to the technical field of nail fixers and comprises a firing pin seat and an outer sleeve, a firing groove and a limit pin groove are arranged on the firing pin seat, a safety pin hole is arranged in the firing pin seat, a safety pin is inserted in the safety pin hole, and the rear end of the limit pin groove is closed. On the premise that the working mode and effect of original equipment are not changed, a groove in an original firing pin sleeve and a limiting face in an outer sleeve body are omitted, the firing pin seat sleeve and the limiting face are omitted, and the function of limiting a firing pin seat is achieved, so that a spring base is omitted, the free moving space of a firing pin seat spring is deepened, and the service life of the firing pin seat spring is prolonged. The service life is prolonged, the front end of the tail cover is provided with the firing surface and the limiting surface which are shared, machining is easier, circumferential limiting does not need to be carried out on the firing assembly, firing can be carried out at all degrees, and due to the design, parts are ingeniously reduced, the machining and assembling difficulty is lowered, and the use reliability of equipment is improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of nail fixing devices, in particular to a nail fixing device with an easy-to-remove firing component. Background Art

[0002] With the development of nail fixing technology, the various advantages of nail fixing make its application more and more extensive.

[0003] When the nail fixer is in use, the firing pin moves forward rapidly in the firing pin sleeve, and its tip part hits the tail of the integrated nail, causing the integrated nail to explode. The generated gas pushes the nail into the front end base quickly, completing the nail shooting process.

[0004] When using the existing nail fixing device, the nail bullet is loaded into the nail tube, the movable sleeve and the firing pin sleeve are moved to the rear end, and the firing pin is fired out by unlocking the compression potential energy of the firing spring, thereby firing the nail bullet into the wall. However, there are the following problems in the production and use of such nail fixing devices:

[0005] (1) The existing nail fixing device is inconvenient to disassemble. It is necessary to remove the tail cover, then remove the protective cover, then remove the limit pin, then remove the main sleeve, and then remove the brake pin to remove the firing pin. The steps are cumbersome and the disassembly and assembly are troublesome.

[0006] (2) The firing pin is short, the firing rate is poor, there are many duds, it is incompatible, the silencer head often gets stuck, and it is difficult to disassemble.

[0007] (3) During use, the firing spring and brake pin spring will be compressed to the limit during the compression process. Long-term use may cause the firing spring to be damaged due to the force exceeding the elastic limit, and the service life is significantly shortened. The firing pin is difficult to remove after being used for a long time, making it impossible to replace the accessories.

[0008] (4) There is a spring base under the firing spring, which makes it difficult to discharge dust and residue. When a large number of nails are driven, it is easy to get blocked, resulting in failure to fire and difficulty in disassembly. In addition, an additional part increases weight and cost. Therefore, a firing assembly easy-to-remove nail fixing device is proposed. Utility Model Content

[0009] Technical issues solved

[0010] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a nail fixing device with an easy-to-remove firing assembly.

[0011] Technical Solution

[0012] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a firing assembly easily removable nail retainer, comprising a firing pin seat and an outer sleeve, the firing pin seat being provided with a firing groove and a limit pin groove, the firing pin seat being provided with a safety pin hole, the safety pin hole being inserted with a safety pin, and the rear end of the limit pin groove being closed; a limit pin is inserted in the firing groove and the limit pin groove; an outer sleeve is provided outside the firing pin seat, the outer sleeve has a limit surface, the limit pin is located at the rear of the limit surface, and the length of the limit pin is greater than the limit surface; a tail cover is connected to the rear of the outer sleeve, and a firing device is provided in the tail cover; the limit pin is always located in front of the front end surface of the tail cover, a limit force surface is provided on the firing pin seat, and a spring positioning surface is provided on the firing pin seat.

[0013] Preferably, a stop surface is provided at the front end of the tail cover, and the stop surface is an integral part or a split part.

[0014] Preferably, there is a detail below the limiting force surface, and the outer diameter of the detail is smaller than the inner diameter of the firing device.

[0015] Preferably, a spring positioning surface is provided above the firing slot, and a spring positioning surface is provided below the firing slot.

[0016] Preferably, the firing device is arranged in a ° circle, and the firing device is one of a circular surface, an arc surface, an inclined surface or a straight surface.

[0017] Preferably, a shell ejection spring is provided at the front end of the firing pin seat, the limiting surface abuts against a limiting pin, and the limiting pin passes through the firing pin seat.

[0018] Preferably, it also includes a launch tube assembly and a firing assembly, wherein the launch tube assembly is composed of a corner piece positioning cover, a shell extraction cover, a silencer cover, a silencer cover and a launch tube, and the firing assembly is composed of a firing pin seat, a firing pin body assembly and an outer sleeve firing assembly, and the outer sleeve assembly includes a limiting body, an outer sleeve body and a tail cover.

[0019] Preferably, it also includes a firing pin, which is located above the firing pin body. The firing pin and the firing pin body are connected by a connecting pin. A safety pin and a safety pin spring are provided on one side of the firing pin body. The firing pin body is also provided with a limit pin, and a protective sleeve is sleeved on the outer shell.

[0020] Preferably, it also includes a firing pin seat spring and a firing spring, wherein the firing pin seat spring is arranged at one end of the firing pin seat, and the firing spring is arranged at one end of the firing pin body.

[0021] Beneficial effects:

[0022] Compared with the prior art, the firing assembly easy-to-remove nail fixer has the following beneficial effects:

[0023] Compared with the prior art, the utility model eliminates a groove on the original firing pin sleeve and a limited surface in the outer casing without changing the working mode and effect of the original equipment. The firing pin seat sleeve is eliminated, and the limiting surface plays a limiting role on the firing pin seat. Not only that, the spring base is eliminated, the free movement space of the firing pin seat spring is deepened, and the service life is extended. The firing surface and the limiting surface are set at the front end of the tail cover for common use, which is easier to process and there is no need to limit the firing assembly circumferentially. It can be fired at 360 degrees. This design cleverly reduces parts, reduces the difficulty of processing and assembly, and improves the reliability of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0025] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the firing pin seat of the utility model;

[0027] Figure 4 It is a schematic diagram of the structure of the outer jacket of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the tail cover of the utility model.

[0029] In the figure:

[0030] 1. Angle piece positioning cover; 2. Shell ejection cover; 3. Silencer cover; 4. Silencer cover; 5. Launch tube; 6. Limiting body; 7. Shell ejection spring; 8. Firing pin seat; 9. Firing pin; 10. Connecting pin; 11. Safety pin; 12. Safety pin spring; 13. Firing pin body; 14. Limiting pin; 15. Protective cover; 16. Outer cover; 17. Firing pin seat spring; 18. Firing spring; 19. Tail cover; 20. Slag discharge hole; 21. Limiting surface; 22. Stop surface; 23. Firing groove; 24. Limiting pin groove; 51. Adjusting ring; 52. Silencer hole; 53. Exhaust hole; 54. Adjusting screw. DETAILED DESCRIPTION

[0031] 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 in 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.

[0032] See also Figure 1 to Figure 4As shown, the utility model provides a technical solution: a firing assembly easily removable nail retainer, including a firing pin seat 8 and an outer sleeve 16, the firing pin seat 8 is provided with a firing groove 23 and a limit pin groove 24, a safety pin hole is provided in the firing pin seat 8, a safety pin 11 is inserted in the safety pin hole, and the rear end of the limit pin groove 24 is closed; the firing groove 23 and the limit pin groove 24 are penetrated by a limit pin 14; the firing pin seat 8 is provided with an outer sleeve 16 outside, the outer sleeve 16 has a limit surface 21, the limit pin 14 is located at the rear of the limit surface 21, and the length of the limit pin 14 is greater than the limit surface 21; the outer sleeve 16 is connected to the rear of the tail cover 19, and a firing device is provided in the tail cover 19; the limit pin 14 is always located in front of the front end surface of the tail cover 19, the firing pin seat 8 is provided with a limit force surface, and the firing pin seat 8 is provided with a spring positioning surface.

[0033] Please pay attention to Figure 1 , Figure 2 and Figure 5 A stop surface 22 is provided at the front end of the tail cover 19. The stop surface 22 is an integral part or a split part. Below the stop force surface is a detail whose outer diameter is smaller than the inner diameter of the firing device. A spring positioning surface is provided above the firing groove 23, and a spring positioning surface is provided below the firing groove 23.

[0034] Please pay attention to Figure 1 and Figure 2 It also includes a launch tube assembly and a firing assembly, the launch tube assembly is composed of a corner piece positioning cover 1, a shell extraction cover 2, a silencer cover 3, a silencer cover 4 and a launch tube 5, the firing assembly is composed of a firing pin seat 8, a firing pin body assembly and an outer sleeve firing assembly, the outer sleeve assembly includes a limiting body 6, an outer sleeve body 16 and a tail cover 19. The firing device is arranged in a 360° circle, and the firing device is one of a circular surface, an arc surface, an inclined surface or a straight surface.

[0035] The firing pin seat 8 of the device is provided with an ejection spring 7 at the front end, the limiting surface 21 abuts against the limiting pin 14, and the limiting pin 14 passes through the firing pin seat 8, the firing pin 9 is located above the firing pin body 13, the firing pin 9 and the firing pin body 13 are connected by a connecting pin 10, a safety pin 11 and a safety pin spring 12 are provided on one side of the firing pin body 13, the firing pin body 13 is also provided with a limiting pin 14, a protective sleeve 15, a firing pin seat spring 17 and a firing spring 18 are sleeved on the outer shell 16, the firing pin seat spring 17 is provided at one end of the firing pin seat 8, and the firing spring 18 is provided at one end of the firing pin body 13.

[0036] Working principle: The front end of the firing pin seat 8 is provided with a shell ejection spring 7, which plays a role of resetting when the shell is ejected after use. At the same time, the limit surface 21 abuts against the limit pin 14, and the limit pin 14 passes through the firing pin seat 8.

[0037] When firing, an integrated nail is installed in the front end of the launching tube 5 and rests on the base, pressing the tail cover 19 with force. Since the tail cover 19 and the outer casing 16 are threadedly connected, the two move forward synchronously. At this time, the top of the firing pin seat 8 is held and fixed by the integrated nail, and the firing pin seat 8 and the firing pin 9 are not moving. Therefore, in this process, the ejection spring 7, the firing pin seat spring 17 and the firing spring 18 are compressed, and the limiting surface 21 leaves the limiting pin 14.

[0038] When the tail cover 19 and the outer casing 16 move forward to a certain extent, the firing bevel 22 at the front end of the tail cover 19 compresses the safety pin 11, so that the safety pin 11 overcomes the safety pin spring 12 at its lower part and moves downward, so that the safety pin 11 loses the restriction on the firing pin seat 8, and the firing pin seat 8 and the firing pin 9 become free bodies. At this time, the firing spring 18 installed between the firing pin body 13 and the tail cover 19 has stored energy, so the firing spring 18 can push the firing pin seat 8 and the firing pin 9 to move forward quickly (at this time, the safety pin 11 also moves forward synchronously in the firing groove 23), and the firing pin 9 strikes the tail of the integrated nail, causing it to explode and complete the nail shooting process. The debris and residues generated by the explosion are discharged from the slag discharge hole 20.

[0039] After the nail shooting action is completed, all parts are reset under the action of the shell ejection spring 7.

[0040] It is worth noting that, when assembling this embodiment, first install the safety pin spring 12 and the safety pin 11 into the safety pin countersunk hole of the firing pin body 13, then install the firing pin 9 into the upper end of the firing pin body 13, insert the connecting pin 10, and install them into the firing pin seat 8 together, and place the safety pin 11 in the safety pin hole on the firing pin seat 8. It is limited by the inner wall of the outer casing 16. And the limiting pin groove 24 on the firing pin seat 8 protrudes from the end of the outer casing 16,

[0041] The limit pin 14 passes through the holes of the firing pin seat 8 and the firing pin body 13, and then the shell extraction spring 7 is installed at the front end of the firing pin seat 8, and the firing spring 18 and the firing pin seat spring 17 are installed at the rear end of the firing pin seat 8. Then the whole is installed in the outer casing 16, and at this time, the limit pin 14 exerts force on the limit surface 21. The purpose of the above expression is to explain: during the assembly process, the limit pin 14 will pass through the entire stroke from the rear end of the outer casing 16 to the limit surface 21, so the firing bevel 22 cannot be set in the outer casing 16, otherwise interference will occur. In this embodiment, the firing bevel 22 is set at the front end of the tail cover 19, which is also necessary to adapt to this structure. For the same reason, the connection method between the tail cover 19 and the outer casing 16 must be removable and cannot be integrated.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A firing assembly easily removable nail holder, comprising a firing pin seat (8) and an outer casing (16), wherein the firing pin seat (8) is provided with a firing groove (23) and a stop pin groove (24), characterized in that: The firing pin seat (8) is provided with a safety pin hole, in which a safety pin (11) is inserted, and the rear end of the limit pin groove (24) is closed; the limit pin (14) is inserted in the firing groove (23) and the limit pin groove (24); the firing pin seat (8) is provided with an outer casing (16), the outer casing (16) has a limit surface (21), the limit pin (14) is located at the rear of the limit surface (21), and the length of the limit pin (14) is greater than the limit surface (21); the outer casing (16) is connected to a tail cover (19) at the rear, and a firing device is provided in the tail cover (19); the limit pin (14) is always located in front of the front end surface of the tail cover (19), the firing pin seat (8) is provided with a limit force surface, and the firing pin seat (8) is provided with a spring positioning surface.

2. The easy-to-remove nail fixing device for firing assembly according to claim 1, characterized in that: A stop surface (22) is provided at the front end of the tail cover (19), and the stop surface (22) is an integral part or a split part.

3. The easy-to-remove nail fixing device for firing assembly according to claim 1, characterized in that: Below the limiting force surface is a detail, and the outer diameter of the detail is smaller than the inner diameter of the firing device.

4. The easy-to-remove nail fixing device for firing assembly according to claim 1, characterized in that: A spring positioning surface is provided above the firing groove (23), and a spring positioning surface is provided below the firing groove (23).

5. The easy-to-remove nail fixing device for firing assembly according to claim 1, characterized in that: The firing device is arranged in a (360)° circle, and the firing device is one of a circular surface, an arc surface, an inclined surface or a straight surface.

6. The firing assembly easily removable nail fixing device according to claim 1, characterized in that: A shell ejection spring (7) is arranged at the front end of the firing pin seat (8), the limiting surface (21) abuts against the limiting pin (14), and the limiting pin (14) passes through the firing pin seat (8).

7. The firing assembly easily removable nail fixing device according to claim 1, characterized in that: It also includes a launch tube assembly and a firing assembly, wherein the launch tube assembly is composed of a corner piece positioning cover (1), a shell extraction cover (2), a silencer cover (3), a silencer cover (4) and a launch tube (5), and the firing assembly is composed of a firing pin seat (8), a firing pin body assembly and an outer sleeve firing assembly, and the outer sleeve assembly includes a limiting body (6), an outer sleeve body (16) and a tail cover (19).

8. The firing assembly easily removable nail holder according to claim 1, characterized in that: The invention also comprises a firing pin (9), wherein the firing pin (9) is located above a firing pin body (13), the firing pin (9) and the firing pin body (13) are connected via a connecting pin (10), a safety pin (11) and a safety pin spring (12) are arranged on one side of the firing pin body (13), the firing pin body (13) is also provided with a limit pin (14), and a protective sleeve (15) is sleeved on the outer sleeve body (16).

9. The easy-to-remove nail fixing device for firing assembly according to claim 1, characterized in that: It also includes a firing pin seat spring (17) and a firing spring (18), wherein the firing pin seat spring (17) is arranged at one end of the firing pin seat (8), and the firing spring (18) is arranged at one end of the firing pin body (13).