Gun nozzle quick-changing structure of striking tool

Abstract

The utility model discloses a quick-change structure for a gun nozzle of a striking tool, and relates to the technical field of striking tools, the quick-change structure comprises a gun head assembly matched with the striking tool, the gun head assembly comprises a gun nozzle and an installation head integrally formed with the gun nozzle, the installation head is communicated with the gun nozzle, an extension part is arranged on the installation head, and the gun nozzle is arranged on the extension part. The extending part is detachably inserted into a trajectory of the striking tool, a hook part is arranged at the end, away from the mounting head, of the extending part, and a limiting sliding block used for being close to or away from the hook part is movably arranged on the trajectory. Through the arrangement of the gun head assembly, when the hook part is pressed and locked by the spring bolt part, the gun head assembly can be locked by the limiting sliding block, and the subsequent gun nozzle can carry out normal nailing work; when the gun head assembly needs to be replaced with a new gun head assembly, locking of the gun head assembly can be relieved only by moving the limiting sliding block to enable the spring bolt part on the limiting sliding block to be far away from the hook part.

Description

Technical Field

[0001] The utility model relates to the technical field of striking tools, in particular to a quick-change structure for a gun nozzle of a striking tool. Background Art

[0002] The nozzles of existing nail guns on the market are fixed to the trajectory with screws, or different types of nozzles are screwed to the trajectory by setting threads on the outside of the nozzle. When the nail gun needs to fix different objects, the corresponding nozzle needs to be replaced. Each time the nozzle is replaced, the cover screw pressing the nozzle must be removed. This design is extremely inconvenient at the construction site, requires a special screw wrench, and is time-consuming and labor-intensive.

[0003] For example, the Chinese patent document with patent application number 201510759151.X discloses a quick-change device for a gun nozzle, in which the locking mechanism includes a telescopic member and a limit steel ball with a diameter larger than the diameter of the perforated hole, the telescopic member is movably arranged in the groove body, the limit steel ball is arranged in the perforated hole, and the lower part of the limit steel ball is located in the waist groove of the nail tube; when disassembling the nail tube, the telescopic member cooperates with the limit steel ball so that the limit steel ball is located outside the waist groove. The above-mentioned prior art has a limit member (steel ball), a telescopic member, and screws for installation, etc., with many parts and a complex structure, and tools such as screwdrivers are required for assembly.

[0004] Therefore, we propose a quick-change structure for the muzzle of a striking tool to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art and to provide a quick-change structure for a gun nozzle of a striking tool. The quick-change structure is easy to use, has a simple structure, does not require installation bolts, etc., and can achieve rapid replacement of different gun nozzles.

[0006] In order to solve the above problems, the utility model provides the following technical solutions:

[0007] A quick-change structure for the gun nozzle of a striking tool comprises a gun head assembly adapted to be installed with the striking tool, wherein: the gun head assembly comprises a gun nozzle and a mounting head integrally formed with the gun nozzle, and the mounting head is connected to the gun nozzle, an extension portion is arranged on the mounting head, and the extension portion is detachably inserted into the trajectory of the striking tool, a hook portion is arranged at one end of the extension portion away from the mounting head, and a limiting slider for approaching or moving away from the hook portion is movably arranged on the trajectory, so that after the gun head assembly is installed on the trajectory of the striking tool, the limiting slider presses and locks the position of the hook portion.

[0008] As a further solution of the utility model: a cylindrical pin is fixedly provided inside the trajectory, and the limit slider is slidably installed on the cylindrical pin.

[0009] As a further solution of the utility model: a return spring fixedly connected to the limit slider is arranged inside the trajectory, so that when the limit slider moves away from the hook portion, the return spring has a movement tendency to drive the limit slider to move toward the hook portion.

[0010] As a further solution of the utility model: a locking tongue portion matched with the hook portion is arranged on the top of the limit slider, and after the gun head assembly is installed on the trajectory of the striking tool, the locking tongue portion on the limit slider presses and locks the position of the hook portion.

[0011] As a further solution of the utility model: the gun head assembly also includes an adjusting washer, which is provided in plurality, and the plurality of adjusting washers are circumferentially arrayed on the outside of the mounting head. After the gun head assembly is installed on the trajectory of the striking tool, the plurality of adjusting washers are located between the trajectory and the mounting head.

[0012] As a further solution of the utility model: a through hole for movement of the limit slider is opened on the outside of the trajectory, and a quick release push button is fixedly provided on the limit slider, the quick release push button is arranged on the outside of the trajectory, and a plurality of strip-shaped ridges are arranged on the top of the quick release push button.

[0013] As a further solution of the utility model: a dust cover is detachably mounted on the top of the trajectory by bolts.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. Through the setting of the gun head assembly, when the locking tongue part on the upper limit slider of the trajectory presses and locks the hook part on the gun head assembly, the gun head assembly in this state will be locked by the limit slider, and the subsequent gun nozzle can perform normal nailing work; when a new gun head assembly needs to be replaced, it is only necessary to move the limit slider so that the locking tongue part on the limit slider is away from the hook part to release the lock of the gun head assembly, and then the new gun head assembly can be plugged into the trajectory, so that the locking tongue part on the limit slider presses the hook part to achieve locking;

[0016] 2. Regarding the setting of the return spring, when the limit slider is used to press and lock the hook part, the return spring is in a compressed state, and the return spring will exert a force on the limit slider toward the hook part, so that the limit slider can better press and lock the hook part. When the gun head assembly needs to be replaced, the limit slider is driven to move, which will further compress the return spring. After the new gun head assembly is assembled on the trajectory, the elastic action of the return spring can make the limit slider better press and lock the hook part;

[0017] 3. Through the setting of the adjustment washers, after the gun head assembly is installed on the ballistic of the striking tool, multiple adjustment washers are located between the ballistic and the mounting head. The gap between the mounting head and the inner cavity of the ballistic can be filled by using multiple adjustment washers, so that the gun head assembly is more stable after installation;

[0018] 4. Through the setting of the quick release push button, the staff can drive the quick release push button to move with the thumb, and the movement of the quick release push button can drive the limit slider to move, thereby realizing the function of quick disassembly and assembly; the setting of multiple strip-shaped ridges can increase the friction between the staff's thumb and the quick release push button to prevent slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;

[0021] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 3 This is a schematic diagram of the overall structure of the utility model Figure 2 ;

[0023] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 5 This is a schematic diagram of the overall structure of the trajectory and limit slider in the utility model. Figure 1 ;

[0025] Figure 6 This is a schematic diagram of the overall structure of the trajectory and limit slider in the utility model. Figure 2 ;

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the ballistics and gun head assembly in the utility model;

[0027] Figure 8 It is a front view structural diagram of the gun head assembly in the utility model;

[0028] Fig. 9 It is a schematic diagram of the overall structure of the dust cover and the limit slider after being inverted in the utility model.

[0029] In the figure: 1. striking tool; 101. ballistics; 2. gun head assembly; 201. gun nozzle; 202. mounting head; 203. extension part; 204. hook part; 205. adjusting washer; 3. limit slider; 301. locking tongue part; 4. cylindrical pin; 5. reset spring; 6. quick release push button; 7. dust cover. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figure 1-Figure 9 As shown, a quick-change structure of a gun nozzle of a striking tool includes a gun head assembly 2 adapted to be installed with the striking tool 1. Specifically, in order to realize fast and good disassembly and assembly between the trajectory 101 of the striking tool 1 and the gun head assembly 2, the gun head assembly 2 includes a gun nozzle 201 and a mounting head 202 integrally formed with the gun nozzle 201, and the mounting head 202 is connected to the gun nozzle 201, and an extension portion 203 is provided on the mounting head 202, and the extension portion 203 is detachably inserted into the trajectory 101 of the striking tool 1, and a hook portion 204 is provided at one end of the extension portion 203 away from the mounting head 202, and a limit slider 3 for approaching or moving away from the hook portion 204 is movably provided on the trajectory 101, so that after the gun head assembly 2 is installed on the trajectory 101 of the striking tool 1, the limit slider 3 presses and locks the position of the hook portion 204.

[0032] After the limit slider 3 presses and locks the hook portion 204, the positions of the mounting head 202 and the gun nozzle 201 on the trajectory 101 will be locked, that is, the striking tool 1 can be used to drive the nail to be shot out from the gun nozzle 201; when it is necessary to replace another type of gun head assembly 2, the staff can drive the limit slider 3 to move away from the hook portion 204, that is, release the lock of the limit slider 3 on the hook portion 204. At this time, the gun head assembly 2 can be removed from the trajectory 101, and then replaced with another type of gun head assembly 2.

[0033] like Figure 3-Figure 4As shown, in order to realize the installation of the limit slider 3 on the trajectory 101, a cylindrical pin 4 can be fixedly arranged inside the trajectory 101, and the limit slider 3 is slidably installed on the cylindrical pin 4. At the same time, in order to make the limit slider 3 press and lock the hook portion 204 on the gun head assembly 2 well, a return spring 5 fixedly connected to the limit slider 3 can be arranged inside the trajectory 101, so that when the limit slider 3 moves away from the hook portion 204, the return spring 5 has a movement trend that drives the limit slider 3 to move toward the hook portion 204. When the limit slider 3 is used to press and lock the hook portion 204, the return spring 5 is in a compressed state, and the return spring 5 will apply a force toward the hook portion 204 to the limit slider 3, so that the limit slider 3 presses and locks the hook portion 204 better. When the gun head assembly 2 needs to be replaced, the limit slider 3 is driven to move, which will further compress the return spring 5. After the new gun head assembly 2 is assembled on the ballistic 101, the limit slider 3 can better press and lock the hook portion 204 under the elastic action of the return spring 5.

[0034] like Figure 5-Figure 6 As shown, further, in order to improve the locking effect of the limit slider 3 on the hook portion 204, a locking tongue portion 301 adapted to the hook portion 204 can be provided on the top of the limit slider 3, and after the gun head assembly 2 is installed on the trajectory 101 of the striking tool 1, the locking tongue portion 301 on the limit slider 3 presses and locks the position of the hook portion 204.

[0035] like Figure 7-Figure 8 As shown, at the same time, in order to ensure the stability of the gun head assembly 2 after it is assembled on the ballistic 101, the gun head assembly 2 can be arranged to also include an adjusting washer 205, and the adjusting washer 205 is provided in plurality, and the plurality of adjusting washers 205 are circumferentially arrayed on the outside of the mounting head 202. After the gun head assembly 2 is installed on the ballistic 101 of the striking tool 1, the plurality of adjusting washers 205 are located between the ballistic 101 and the mounting head 202. The plurality of adjusting washers 205 can be used to fill the gap between the mounting head 202 and the inner cavity of the ballistic 101, so that the gun head assembly 2 is more stable after installation.

[0036] like Figure 4-Figure 6 As shown, when in use, in order to facilitate the staff to operate the limit slider 3 to move, a through hole for the limit slider 3 to move can be opened on the outside of the trajectory 101, and a quick release push button 6 is fixedly provided on the limit slider 3. The quick release push button 6 is set on the outside of the trajectory 101, and a plurality of strip-shaped ridges are arranged on the top of the quick release push button 6. The staff can drive the quick release push button 6 to move with the thumb, and the movement of the quick release push button 6 can drive the limit slider 3 to move, thereby realizing the function of quick disassembly and assembly. The provision of multiple strip-shaped ridges can increase the friction between the staff's thumb and the quick release push button 6 to prevent slipping. As shown in FIG. Figure 4 and Fig. 9 As shown, further, in order to protect the above components, a dust cover plate 7 can be detachably installed on the top of the ballistic trajectory 101 by bolts.

[0037] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A quick-change structure for a gun nozzle of a striking tool, characterized in that: The invention comprises a gun head assembly (2) adapted to be mounted on a striking tool (1), wherein the gun head assembly (2) comprises a gun nozzle (201) and a mounting head (202) integrally formed with the gun nozzle (201), and the mounting head (202) is connected to the gun nozzle (201), an extension portion (203) is arranged on the mounting head (202), and the extension portion (203) is detachably inserted into the trajectory (101) of the striking tool (1), a hook portion (204) is arranged at one end of the extension portion (203) away from the mounting head (202), and a limiting slider (3) for approaching or moving away from the hook portion (204) is movably arranged on the trajectory (101), so that after the gun head assembly (2) is mounted on the trajectory (101) of the striking tool (1), the limiting slider (3) presses and locks the position of the hook portion (204).

2. The quick-change structure of a gun nozzle of a striking tool according to claim 1, characterized in that: A cylindrical pin (4) is fixedly arranged inside the trajectory (101), and the limit slider (3) is slidably mounted on the cylindrical pin (4).

3. The quick-change structure of a gun nozzle of a striking tool according to claim 2, characterized in that: A return spring (5) fixedly connected to the limit slider (3) is arranged inside the trajectory (101), so that when the limit slider (3) moves away from the hook portion (204), the return spring (5) has a movement tendency to drive the limit slider (3) to move towards the hook portion (204).

4. The quick-change structure for a gun nozzle of a striking tool according to claim 3, characterized in that: A locking tongue portion (301) adapted to the hook portion (204) is provided on the top of the limit slide block (3), and after the gun head assembly (2) is mounted on the trajectory (101) of the striking tool (1), the locking tongue portion (301) on the limit slide block (3) presses and locks the position of the hook portion (204).

5. The quick-change structure of a gun nozzle of a striking tool according to claim 4, characterized in that: The gun head assembly (2) further comprises an adjusting washer (205), wherein the adjusting washer (205) is provided in a plurality, and the plurality of adjusting washers (205) are arranged in a circumferential array outside the mounting head (202); after the gun head assembly (2) is mounted on the ballistic (101) of the striking tool (1), the plurality of adjusting washers (205) are located between the ballistic (101) and the mounting head (202).

6. A quick-change nozzle structure for a striking tool according to any one of claims 1 to 5, characterized in that: The trajectory (101) is provided with a through hole for the limit slider (3) to move, and the limit slider (3) is fixedly provided with a quick release push button (6), which is arranged outside the trajectory (101), and a plurality of strip-shaped ridges are arranged on the top of the quick release push button (6).

7. The quick-change structure for a gun nozzle of a striking tool according to claim 6, characterized in that: A dust cover plate (7) is detachably mounted on the top of the trajectory (101) via bolts.

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