Axial nail shooting device firing mechanism and axial nail shooting device

Abstract

The firing mechanism comprises a driving hammer, a driving hammer sleeve, a brake pin assembly, a firing sleeve and a connecting handle, the brake pin assembly is arranged on the driving hammer, the driving hammer is sleeved with the driving hammer sleeve, and a limiting groove matched with the brake pin assembly is formed in the driving hammer sleeve; the percussion sleeve is sleeved outside the driving hammer sleeve; the guide slope is arranged at the end of the connecting handle, compared with an existing mode that the guide slope is arranged in the percussion sleeve, the guide slope is more convenient to machine, batch production can be carried out, the length of the percussion sleeve can be shortened on the basis, and the percussion sleeve is convenient to assemble and disassemble. The total weight of the nail shooter is reduced, the nail shooter is lighter to use, the firing pin sleeve and the chamber seat can be quickly disassembled, and compared with the existing design, the nail shooter is convenient to disassemble and replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of nail gun, especially to an axial nail gun firing mechanism and axial nail gun. BACKGROUND

[0002] The existing axial nail gun triggers the firing action by compressing the brake pin, such as a composite ceiling nail gun firing mechanism disclosed in application No. 2019111309030. The safety pin (brake pin) is compressed under the action of the firing sleeve inclined groove, and the safety pin and the safety spring are compressed, so that the firing pin body is disarmed and fired. The inclined surface for compressing the brake pin is arranged in the firing sleeve, which has the problems of difficult integrated machining and is not conducive to mass production. Based on this, the present application designs an axial nail gun firing mechanism. SUMMARY

[0003] The utility model provides a kind of axial nail gun firing mechanism and axial nail gun, can solve the problems pointed out in the background art.

[0004] An axial nail gun firing mechanism, comprising:

[0005] A firing pin is arranged on the hammer;

[0006] A firing pin sleeve is arranged outside the hammer, and a limiting groove is formed on the firing pin sleeve to cooperate with the brake pin assembly;

[0007] A firing sleeve is arranged outside the firing pin sleeve;

[0008] A connecting handle is threadedly connected with the firing sleeve, and a spring one is arranged in the connecting handle to abut against the hammer;

[0009] The connecting handle has a guide inclined surface that cooperates with the brake pin assembly. During the charging process of the nail gun, the brake pin assembly abuts against the guide inclined surface, so that the brake pin assembly shrinks towards the inside of the hammer, thereby releasing the limiting of the firing pin sleeve on the hammer, and realizing the firing action of the nail gun.

[0010] The brake pin assembly includes a brake pin and a spring two. The hammer has a receiving cavity for accommodating the brake pin. Under the action of the spring two, the brake pin can abut against the inner wall of the firing sleeve.

[0011] The brake pin includes a thick part and a thin part. The width of the limiting groove is greater than the diameter of the thin part and less than the diameter of the thick part.

[0012] Preferably, the end of the limiting groove is an expanded portion, and the inner diameter of the expanded portion is greater than the outer diameter of the brake pin.

[0013] Preferably, the thin part is in the shape of a spherical cap.

[0014] Preferably, the bottom of the brake pin is provided with a containing groove capable of containing part of the spring two.

[0015] Preferably, the hammer is further provided with a guide pin, and the hammer sleeve and the firing sleeve are respectively provided with a guide groove one and a guide groove two matched with the guide pin.

[0016] The axial nail shooter further comprises a hammer sleeve, a connecting pipe, a cartridge seat and a fixing sleeve.

[0017] The hammer is provided with a hammer pin, and the hammer sleeve is provided with a groove for containing the hammer pin sleeve.

[0018] One end of the connecting pipe extends into the firing sleeve, and the other end is threadedly connected with the fixing sleeve, and the connecting pipe and the firing sleeve are provided with a spring three therebetween, the cartridge seat is located in the fixing sleeve, and the cartridge seat and the hammer sleeve are provided with a spring four therebetween.

[0019] Compared with the prior art, the guide inclined surface of the utility model is arranged at the end of the connecting handle, which is more convenient for machining than the prior art of arranging in the interior of the firing sleeve, and can be mass-produced, thereby shortening the length of the firing sleeve, reducing the total weight of the nail shooter, and making the nail shooter more portable for use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a sectional view of the utility model;

[0021] Figure 2 It is a sectional view of the guide pin of the utility model;

[0022] Figure 3 It is a structural schematic view of the utility model;

[0023] Figure 4 It is a sectional view of the brake pin of the utility model.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1-hammer, 2-hammer sleeve, 3-limiting groove, 31-flared portion, 4-firing sleeve, 5-connecting handle, 6-spring one, 7-guide inclined surface, 8-brake pin, 81-thick portion, 82-thin portion, 9-spring two, 10-containing cavity, 11-containing groove, 12-guide pin, 13-guide groove one, 14-guide groove two, 15-hammer pin, 16-hammer pin sleeve, 17-connecting pipe, 18-cartridge seat, 19-fixing sleeve, 20-groove, 21-spring three, 22-spring four. DETAILED DESCRIPTION

[0026] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0027] Example 1

[0028] like Figures 1 to 4 As shown in the figure, the axial nail gun firing mechanism provided by this utility model includes a hammer 1, a hammer sleeve 2, a brake pin assembly, a firing sleeve 4, and a connecting handle 5. The brake pin assembly is disposed on the hammer 1, the hammer sleeve 2 is sleeved on the hammer 1, and a limiting groove 3 that cooperates with the brake pin assembly is provided on the hammer sleeve 2; the firing sleeve 4 is sleeved on the hammer sleeve 2; the connecting handle 5 is threadedly connected to the firing sleeve 4, and a spring 6 that abuts against the hammer 1 is provided inside the connecting handle 5.

[0029] Among them, the connecting handle 5 has a guide slope 7 that cooperates with the brake pin assembly. During the charging process of the nail gun, the brake pin assembly abuts against the guide slope 7, causing the brake pin assembly to retract toward the inside of the hammer 1, thereby releasing the hammer sleeve 2 from limiting the hammer 1 and realizing the firing action of the nail gun.

[0030] like Figure 1 As shown, the guide slope 7 is located on the inner wall of the end of the connecting handle 5, which facilitates processing. In addition, since the firing sleeve 4 does not have the guide slope 7, its overall length can be shorter than that of the firing sleeve 4 in the prior art, effectively reducing manufacturing costs and overall weight.

[0031] Specifically, the brake pin assembly of this embodiment includes a brake pin 8 and a second spring 9. The hammer 1 has a receiving cavity 10 for accommodating the brake pin 8. Under the action of the second spring 9, the brake pin 8 can abut against the inner wall of the firing sleeve 4.

[0032] like Figure 4 As shown, the brake pin 8 includes a thick part 81 and a thin part 82. The width of the limiting groove 3 is greater than the diameter of the thin part 82 and smaller than the diameter of the thick part 81. The thin part 82 is spherical. To prevent the second spring 9 from separating from the brake pin 8, the bottom of the brake pin 8 is provided with a receiving groove 11 that can accommodate part of the second spring 9.

[0033] The end of the limiting groove 3 is a flared part 31. The inner diameter of the flared part 31 is larger than the outer diameter of the thick part of the brake pin 8. Therefore, the brake pin 8 abuts against the inner wall of the firing sleeve 4 before it contacts the guide slope 7.

[0034] To serve as a guide, a guide pin 12 is provided on the hammer 1, and guide groove 13 and guide groove 2 14 that cooperate with the guide pin 12 are respectively provided on the hammer sleeve 2 and the firing sleeve 4.

[0035] During the charging process of the nail gun, the spring 6 is compressed, and the brake pin 8 moves along the inner wall of the firing sleeve 4 to the guide slope 7. Under the action of the guide slope 7, it is compressed into the hammer 1, so that the thick part 81 of the brake pin 8 is located on the lower side of the limiting groove 3, and the thin part 82 of the brake pin 8 is located in the limiting groove 3, that is, the safety is released, and then firing is performed. During the firing process, the thin part 82 of the brake pin 8 moves from the flared part 31 of the limiting groove 3 toward the other end of the limiting groove 3.

[0036] Example 2

[0037] like Figure 1 As shown, this embodiment proposes an axial nail gun, including the axial nail gun firing mechanism of Embodiment 1, and also includes a firing pin sleeve 16, a connecting tube 17, a cartridge chamber seat 18, and a fixing sleeve 19.

[0038] A firing pin 15 is detachably mounted on the hammer 1, and a groove 20 for accommodating the firing pin sleeve 16 is provided on the hammer sleeve 2.

[0039] One end of the connecting tube 17 extends into the firing sleeve 4, and the other end is threaded to the fixed sleeve 19. A spring 3 21 is provided between the connecting tube 17 and the firing sleeve 4. The chamber seat 18 is located inside the fixed sleeve 19. A spring 4 22 is provided between the chamber seat 18 and the hammer sleeve 2.

[0040] Under the action of guide pin 12 and guide groove 14, the movement range of hammer sleeve 2 is limited. Hammer sleeve 2 and connecting pipe 17 have stepped surfaces that interlock with each other. Therefore, connecting pipe 17 cannot be directly separated from hammer sleeve 2. Only after the guide pin 12 is removed can connecting pipe 17 and hammer sleeve 2 be moved out of firing sleeve 4 together.

[0041] Both the chamber seat 18 and the retaining sleeve 19 are provided with corresponding stepped surfaces so that the chamber seat 18 is confined within the retaining sleeve 19. After unscrewing the retaining sleeve 19, the chamber seat 18 can be directly removed for easy disassembly and replacement, thereby replacing a new chamber seat 18 or a chamber seat 18 of other specifications. In addition, since the firing pin sleeve 16 is located in the groove 20 and is not fixedly connected to the hammer sleeve 2, after unscrewing the retaining sleeve 19 and removing the chamber seat 18, the firing pin sleeve 16 can be directly removed for easy replacement with a firing pin sleeve 16 of the same or other specifications.

[0042] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit and the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0043] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment contains only one independent technical solution. The specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. An axial nailer firing mechanism characterized by, The application relates to an axial nail gun firing mechanism. The hammer is provided with a brake pin assembly; The hammer sleeve is sleeved on the hammer and is provided with a limiting groove matched with the brake pin assembly; The firing sleeve is sleeved on the hammer sleeve; The connecting handle is screwed with the firing sleeve and is provided with a spring I abutting against the hammer; The connecting handle is provided with a guide slope matched with the brake pin assembly, and during the charging process of the nail gun, the brake pin assembly abuts against the guide slope, so that the brake pin assembly is retracted towards the inside of the hammer, the limiting of the hammer sleeve to the hammer is released, and the firing action of the nail gun is realized.

2. An axial nailer firing mechanism as defined in claim 1, wherein, The brake pin assembly comprises a brake pin and a spring II, and the hammer is provided with a containing cavity for containing the brake pin.

3. An axial nailer firing mechanism as defined in claim 2, wherein, The brake pin comprises a thick part and a thin part, the width of the limiting groove is greater than the diameter of the thin part and smaller than the diameter of the thick part.

4. An axial nailer firing mechanism as defined in claim 3, wherein, The end of the limiting groove is an expanded part, and the inner diameter of the expanded part is greater than the outer diameter of the brake pin.

5. An axial nailer firing mechanism as defined in claim 3, wherein, The thin part is in the shape of a spherical cap.

6. An axial nailer firing mechanism as defined in claim 2, wherein, The bottom of the brake pin is provided with a containing groove for containing part of the spring II.

7. An axial nailer firing mechanism as defined in claim 1 wherein, The hammer is further provided with a guide pin, and the hammer sleeve and the firing sleeve are respectively provided with a guide groove I and a guide groove II matched with the guide pin.

8. An axial nailer, comprising: The application further relates to an axial nail gun firing mechanism comprising the hammer, the hammer sleeve, the firing sleeve, the connecting handle, the brake pin assembly, the guide pin, the guide groove I and the guide groove II. The hammer is provided with a firing pin, and the hammer sleeve is provided with a recess for containing the firing pin sleeve. One end of the connecting pipe extends into the firing sleeve, and the other end is screwed with the fixing sleeve. The connecting pipe is provided with a spring III between the connecting pipe and the firing sleeve, and the spring IV is arranged between the spring chamber and the hammer sleeve.

Images