Nail gun

Abstract

The utility model relates to a nail gun, comprising a nail base, a nail base bracket and a gun nozzle, wherein the gun nozzle (3) is movably arranged relative to the nail base bracket; the nail base bracket comprises a bracket body, a positioning pin and an elastic member, and the gun nozzle comprises a gun nozzle body and a mounting portion, wherein the positioning pin abuts against the mounting portion under the elastic force of the elastic member, and the mounting portion is connected to a connecting pipe via a thread. The utility model provides an elastic member to bias the positioning pin, wherein the positioning pin abuts against the mounting portion under the elastic force of the elastic member, and the mounting portion is connected to the connecting pipe via a thread. When the gun nozzle is rotated, the nailing depth can be adjusted by only overcoming the elastic force of the elastic member located above the positioning pin, and the elastic member can effectively prevent the gun nozzle from shaking, and the structure is simple and the connection is reliable; by providing a plurality of positioning grooves equidistantly distributed along the circumference of the mounting portion, each time the gun nozzle is rotated, the positioning pin cooperates with one of the plurality of positioning grooves, thereby achieving graded adjustment of the nailing depth and improving the user experience.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a nail gun. Background Art

[0002] A nail gun is a product composed of a gun body and a magazine. There are electric nail guns, pneumatic nail guns, gas nail guns, manual nail guns, etc. Nail guns are mainly used in the construction, interior decoration and other industries. Its working principle is: press down the gun mouth and press the switch, the motor is started, and the firing pin is driven by the lifting mechanism from the initial locked preparation position to drive the piston to compress the air. After the firing pin is disengaged from the lifting mechanism, it is suddenly released to hit the row of nails pushed into the nail seat by the nail pusher in the nail box, so that it is ejected from the gun mouth. During use, in order to meet the requirements of different nailing depths, various nail guns are generally provided with a nailing depth adjustment mechanism. However, the nailing depth adjustment mechanism of the existing nail gun is not only complex in structure and not compact enough, but also inconvenient to adjust, and the user experience is poor.

[0003] In view of this, it is indeed necessary to provide an improved nail gun to overcome the defects of the prior art. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a nail gun with a simple and compact structure and convenient for adjusting the nailing depth.

[0005] The technical solution adopted by the utility model to solve the problems of the prior art is: a nail gun, comprising a nail seat, a nail seat bracket connected to the nail seat and a gun nozzle installed on the nail seat bracket, and the gun nozzle is movably arranged relative to the nail seat bracket; it is characterized in that: the nail seat bracket comprises a bracket body supported by the nail seat, a positioning pin movably installed on the bracket body and an elastic member biasing the positioning pin, the bracket body is provided with an axially penetrating connecting pipe, the gun nozzle comprises a gun nozzle body connected to the connecting pipe and a mounting portion arranged on the gun nozzle body, the positioning pin abuts against the mounting portion under the elastic force of the elastic member, and the mounting portion and the connecting pipe are connected via threads.

[0006] A further improved solution is: the mounting portion comprises a plurality of axially extending positioning grooves, the plurality of positioning grooves are equidistantly distributed along the circumference of the mounting portion, and the positioning pins cooperate with the positioning grooves.

[0007] A further improved solution is: the mounting portion is provided with an external thread, the inner wall of the connecting pipe is provided with an internal thread, and the external thread and the positioning groove are arranged at intervals along the circumference of the mounting portion.

[0008] A further improvement is as follows: an annular step for axial limiting is provided in the middle of the gun nozzle, and a reduced diameter section is provided at one end of the mounting portion away from the annular step, wherein the diameter of the reduced diameter section is smaller than the diameter of the external thread.

[0009] A further improved solution is: the bracket body includes a first mounting hole arranged above the connecting pipe, the first mounting hole is connected to the connecting pipe, and the positioning pin and the elastic member are accommodated in the first mounting hole.

[0010] A further improved solution is: the positioning pin includes a column body received in the first mounting hole, a protrusion arranged at the bottom end of the column body and a second mounting hole opened in the column body, the elastic member is installed in the second mounting hole, and the protrusion abuts against the positioning groove.

[0011] A further improved solution is: the nail seat bracket includes a cover plate abutting the elastic member and a fastening screw fixing the cover plate, one end of the elastic member abuts the cover plate, the other end of the elastic member abuts the positioning pin, and the elastic member is in a compressed state.

[0012] A further improved solution is: the bracket body is provided with an inwardly concave fixing groove, and the fastening screw is inserted into the cover plate and the fixing groove in sequence to install the cover plate to the bracket body.

[0013] A further improved solution is: the cover plate includes a first positioning column installed in the fixing groove and a second positioning column installed in the first mounting hole, the fastening screw extends through the first positioning column, and one end of the elastic member away from the positioning pin is sleeved on the second positioning column.

[0014] A further improved solution is: the nailing seat is provided with a mounting tube, and the connecting tube slides axially in the mounting tube.

[0015] Compared with the prior art, the utility model has the following beneficial effects: by arranging the elastic member to bias the locating pin, the locating pin abuts against the mounting portion under the action of the elastic force, and the mounting portion and the connecting pipe are connected via threads, and when the gun nozzle is rotated, it is only necessary to overcome the elastic force of the elastic member located above the locating pin to adjust the nailing depth, and at the same time, the elastic member can effectively prevent the gun nozzle from shaking, and the structure is simple and the connection is reliable; by arranging a plurality of locating grooves equidistantly distributed along the circumference of the mounting portion, each time the gun nozzle is rotated, the locating pin cooperates with one of the plurality of locating grooves, so as to realize graded adjustment of the nailing depth and enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the nail gun of the utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of the disassembly of the nail base bracket and the gun nozzle of the nail gun shown;

[0019] Figure 3 yes Figure 1 A schematic diagram of the structure of the gun nozzle of the nail gun shown;

[0020] Figure 4 yes Figure 1 A structural cross-sectional view of a nail base support and a gun nozzle of the nail gun shown;

[0021] Figure 5 yes Figure 1 A structural cross-sectional view of the nail base support and the gun nozzle of the nail gun shown in another angle.

[0022] Meaning of the reference numerals in the figures:

[0023] Nail gun 100 Chassis 10

[0024] Nail holder 1 Mounting pipe 11

[0025] Nail base bracket 2 bracket body 21

[0026] Connecting pipe 211 Fixing groove 212

[0027] First mounting hole 213 Internal thread 214

[0028] Positioning pin 22 protrusion 221

[0029] Column body 222 Second mounting hole 223

[0030] Elastic member 23 Cover plate 24

[0031] The first positioning column 241 and the second positioning column 242

[0032] Fastening screw 25 Gun nozzle 3

[0033] Nozzle body 31 Mounting part 32

[0034] Positioning groove 321 External thread 322

[0035] Reduced diameter section 323 Annular step 33

[0036] Cylinder assembly 4 Nail magazine 5

[0037] Switch assembly 6 Battery pack 7 DETAILED DESCRIPTION

[0038] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "front", "back", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0039] See also Figure 1 As shown, the utility model relates to a nail gun 100, which is used for fixing various bamboo, wood products and other soft materials or hard thin sheet materials on brick-concrete walls and concrete parts, as well as connecting and fixing low-density metal or polymer parts. The nail gun 100 includes a housing 10, a motor (not shown) and a lifting mechanism (not shown) accommodated in the housing 10, a cylinder assembly 4 connected to the lifting mechanism, a striker (not shown) arranged in the cylinder assembly 4, a nail seat 1 installed at the front end of the housing 10, a nail seat bracket 2 and a nail box 5 connected to the nail seat 1, a gun nozzle 3 installed on the nail seat bracket 2, a switch assembly 6 electrically connected to the motor, and a battery pack 7 detachably installed on the housing 10, and the battery pack supplies power to the nail gun 100.

[0040] The working principle of the nail gun 100 is: the gun nozzle 3 is pressed down toward the surface of the workpiece to be hit, and the gun nozzle drives the nail seat bracket 2 to move backward relative to the nail seat 1, triggering the pre-nailing state of the nail gun 100, and then the switch assembly 6 is pressed, the motor is started, and the motor drives the lifting mechanism, which drives the firing pin from the initial locked preparation position to drive the piston to compress the high-pressure air in the cylinder assembly 4. After the firing pin is disengaged from the lifting mechanism, the high-pressure air is instantly released to push the firing pin to hit the row of nails in the nail box 5 that are pushed into the nail seat 1 by the nail pusher, so that they are ejected from the gun nozzle 3.

[0041] See also Figures 1 to 3 As shown, the gun nozzle 3 is movably arranged relative to the nail seat bracket 2, the nail seat bracket 2 includes a bracket body 21 supported on the nail seat 1, the bracket body 21 is provided with an axially penetrating connecting pipe 211, the gun nozzle 3 includes a gun nozzle body 31 connected to the connecting pipe 211, the nail seat 1 is provided with a mounting tube 11, and the connecting tube 211 slides axially in the mounting tube 11.

[0042] Specifically, the gun nozzle 3 and the nail seat bracket 2 together constitute the nailing depth adjustment mechanism of the nail gun 100, which is movably mounted on the nail seat 1, and the nailing depth adjustment mechanism of the nail gun 100 is provided with an ejection end for ejecting fasteners. One end of the gun nozzle 3 is matched with one end of the nail seat bracket 2 by threaded connection, and the end of the nail seat bracket 2 away from the gun nozzle 3 is used to be installed on the nail seat 1, so that the nailing depth adjustment mechanism of the nail gun 100 is installed on the main body of the nail gun 100 through the nail seat bracket 2, and the end of the gun nozzle 3 away from the nail seat bracket 2 is the ejection end of the nail gun 100.

[0043] See also Figure 2 and Figure 3 As shown, the nail seat bracket 2 also includes a positioning pin 22 movably mounted on the bracket body 21 and an elastic member 23 biasing the positioning pin 22, and the gun nozzle 3 includes a mounting portion 32 and an annular step 33 arranged on the gun nozzle body 31. The positioning pin 22 abuts against the mounting portion 32 under the elastic force of the elastic member 23, and the mounting portion 32 is connected to the connecting pipe 211 via threads. More specifically, the mounting portion 32 is provided with an external thread 322, and the inner wall of the connecting pipe 211 is provided with an internal thread 214.

[0044] When the gun nozzle 3 is rotated, the nailing depth can be adjusted by only overcoming the elastic force of the elastic member 23 located above the positioning pin 22. At the same time, the elastic member 23 can reduce the gap between the gun nozzle 3 and the nail seat bracket 2, which can effectively prevent the gun nozzle 3 from shaking. The structure is simple and the connection is reliable. In this embodiment, the elastic member 23 is a spring. In other embodiments, it can be any elastic member with biasing force, which is not limited here.

[0045] Specifically, the nail-exiting direction of the gun nozzle 3 is defined as the front end, and the direction opposite to the nail-exiting direction is defined as the rear end. The annular step 33 is provided in the middle of the gun nozzle 3. The gun nozzle body 31 is divided into two parts, front and rear, by the annular step 33. The rear end of the gun nozzle body 31 is the mounting portion 32, and the mounting portion 32 extends into the connecting tube 211. The user can adjust the depth of the mounting portion 32 extending into the connecting tube 211 according to the needs of different nailing depths. When the nailing depth is the deepest, the mounting portion 32 is entirely located in the connecting tube 211. At this time, the rear end surface of the annular step 33 abuts against the outlet of the connecting tube 211.

[0046] Preferably, an elastic member can be provided at the rear end of the gun nozzle 3, and the end of the elastic member away from the gun nozzle 3 can be fixed to the nailing seat 1, and the end of the elastic member close to the gun nozzle 3 presses against the rear end of the gun nozzle 3, applying a preset forward force to the gun nozzle 3, further reducing the gap between the gun nozzle 3 and the nail seat bracket 2, effectively preventing the gun nozzle 3 from shaking, and making nailing more reliable.

[0047] The front end of the muzzle body 31 is a striking end. In the present embodiment, the striking end is in the shape of a circular tube. In addition to the circular tube-shaped striking end, it can also be a striking end of other shapes. Therefore, the structure of the striking end is designed according to the structure of the fixing part to be installed. Therefore, in actual use, a variety of striking ends with different structures can be designed according to the structure of the fixing part, such as a striking end with a tube structure, etc.

[0048] See also Figures 2 to 5 As shown, the mounting portion 32 includes a plurality of axially extending positioning grooves 321, which are evenly spaced along the circumference of the mounting portion 32, and the positioning pins 22 cooperate with the positioning grooves 321. The external threads 322 and the positioning grooves 321 are spaced apart along the circumference of the mounting portion 32.

[0049] By providing a plurality of positioning slots 321, each time the gun nozzle 3 is rotated, the positioning pin 22 cooperates with one of the positioning slots 321 to achieve graded adjustment of nailing depth, thereby improving the user experience. Figure 5 As shown, in the present embodiment, there are five positioning grooves 321, that is, rotating the gun nozzle 3 for a full circle will pass through five nailing depth adjustment gears. In other embodiments, the number of the positioning grooves 321 can be two, three, four or six, etc., which is not limited here.

[0050] Please refer to Figure 3 As shown, the end of the mounting portion 32 away from the annular step 33 is provided with a reduced diameter section 323, the diameter of which is smaller than the diameter of the external thread 322, so that the mounting portion 32 can be easily inserted into the connecting tube 211. Preferably, the reduced diameter section 323 can be chamfered to make it easier for the user to align the opening of the connecting tube 211 when installing the gun nozzle 3.

[0051] See also Figures 2 to 5 As shown, the bracket body 21 further includes a first mounting hole 213 disposed above the connecting pipe 211 , the first mounting hole 213 is connected to the connecting pipe 211 , and the positioning pin 22 and the elastic member 23 are received in the first mounting hole 213 .

[0052] Specifically, the positioning pin 22 is movably arranged in the first mounting hole 213. In the absence of external force, the elastic member 23 applies an elastic force downward to the positioning pin 22, so that the bottom of the positioning pin 22 protrudes out of the lower end of the first mounting hole 213, so as to cooperate with the gun nozzle 3; when the gun nozzle 3 is rotated, the elastic member 23 is compressed, and the bottom of the positioning pin 22 is forced to move upward.

[0053] See also Figure 5 As shown, the positioning pin 22 includes a column body 222 received in the first mounting hole 213, a protrusion 221 arranged at the bottom end of the column body 222, and a second mounting hole 223 opened in the column body 222. The elastic member 23 is installed in the second mounting hole 223, and the protrusion 221 abuts against the positioning groove 321. Preferably, the shape of the protrusion 221 is set to be a hemispherical shape, and the shape of the positioning groove 321 is set to be an arc groove, so the mating surface of the protrusion 221 and the positioning groove 321 is an arc surface, so that the rotation of the gun nozzle 3 is smoother and the adjustment of the nailing depth is more convenient.

[0054] Furthermore, the upper end of the elastic member 23 is connected to the bracket body 21, and the specific connection method of the elastic member 23 on the bracket body 21 can be set according to actual conditions. For example, the elastic member 23 is detachably connected to the bracket body 21 through a cover plate; or the elastic member 23 can be directly fixed to the bracket body 21.

[0055] Optionally, in this embodiment, the elastic member 23 is detachably connected to the bracket body 21 through a cover plate, and such a configuration facilitates the replacement after removal when the elastic member 23 fails. The following will take the example of the elastic member 23 being detachably connected to the bracket body 21 through a cover plate as an example.

[0056] The nail seat bracket 2 includes a cover plate 24 abutting against the elastic member 23 and a fastening screw 25 fixing the cover plate 24. One end of the elastic member 23 abuts against the cover plate 24, and the other end of the elastic member 23 abuts against the positioning pin 22. The elastic member 23 is in a compressed state.

[0057] See also Figure 4As shown, the bracket body 21 is provided with a concave fixing groove 212, and the fastening screw 25 is inserted into the cover plate 24 and the fixing groove 212 in sequence to mount the cover plate 24 to the bracket body 21. The cover plate 24 includes a first positioning column 241 installed in the fixing groove 212 and a second positioning column 242 installed in the first mounting hole 213, the fastening screw 25 extends through the first positioning column 241, and one end of the elastic member 23 away from the positioning pin 22 is sleeved on the second positioning column 242, so that the elastic member 23 is reliably positioned in the first mounting hole 213 and is not easily displaced.

[0058] The utility model sets the elastic member 23 to bias the positioning pin 22, and the positioning pin 22 abuts against the mounting portion 32 under the action of the elastic force, and the mounting portion 32 is connected to the connecting pipe 211 via a threaded connection. When the gun nozzle 3 is rotated, it is only necessary to overcome the elastic force of the elastic member 23 located above the positioning pin 22 to adjust the nailing depth. At the same time, the elastic member 23 can effectively prevent the gun nozzle 3 from shaking, and the structure is simple and the connection is reliable. By setting a plurality of positioning grooves 321 equidistantly distributed along the circumference of the mounting portion 32, each time the gun nozzle 3 is rotated, the positioning pin 22 cooperates with one of the plurality of positioning grooves 321 to achieve graded adjustment of the nailing depth and enhance the user experience.

[0059] The utility model is not limited to the above specific embodiments. A person skilled in the art can easily understand that there are many other alternatives to the nail gun of the utility model without departing from the principle and scope of the utility model. The protection scope of the utility model shall be based on the content of the claims.

Claims

1. A nail gun, comprising a nail base, a nail base bracket connected to the nail base, and a gun nozzle mounted on the nail base bracket, wherein the gun nozzle is movably arranged relative to the nail base bracket; characterized in that: The nail seat bracket includes a bracket body supported by the nail seat, a positioning pin movably installed on the bracket body and an elastic member biasing the positioning pin, the bracket body is provided with an axially penetrating connecting pipe, the gun nozzle includes a gun nozzle body connected to the connecting pipe and a mounting portion provided on the gun nozzle body, the positioning pin abuts against the mounting portion under the elastic force of the elastic member, and the mounting portion is connected to the connecting pipe via threads.

2. The nail gun according to claim 1, characterized in that: The mounting portion comprises a plurality of axially extending positioning grooves, the plurality of positioning grooves are equidistantly distributed along the circumference of the mounting portion, and the positioning pins are matched with the positioning grooves.

3. The nail gun according to claim 2, characterized in that: The mounting portion is provided with an external thread, the inner wall of the connecting pipe is provided with an internal thread, and the external thread and the positioning groove are arranged at intervals along the circumference of the mounting portion.

4. The nail gun according to claim 3, characterized in that: An annular step for axial limiting is arranged in the middle of the gun nozzle, and a reduced diameter section is provided at one end of the mounting portion away from the annular step, wherein the diameter of the reduced diameter section is smaller than the diameter of the external thread.

5. The nail gun according to claim 2, characterized in that: The bracket body includes a first mounting hole disposed above the connecting pipe, the first mounting hole is connected to the connecting pipe, and the positioning pin and the elastic member are received in the first mounting hole.

6. The nail gun according to claim 5, characterized in that: The positioning pin includes a column body received in the first mounting hole, a protrusion arranged at the bottom end of the column body and a second mounting hole opened in the column body, the elastic member is installed in the second mounting hole, and the protrusion abuts against the positioning groove.

7. The nail gun according to claim 5, characterized in that: The nail seat bracket includes a cover plate abutting against the elastic member and a fastening screw fixing the cover plate, one end of the elastic member abuts against the cover plate, and the other end of the elastic member abuts against the positioning pin, and the elastic member is in a compressed state.

8. The nail gun according to claim 7, characterized in that: The bracket body is provided with an inwardly concave fixing groove, and the fastening screw is sequentially inserted into the cover plate and the fixing groove to mount the cover plate to the bracket body.

9. The nail gun according to claim 8, characterized in that: The cover plate includes a first positioning column installed in the fixing groove and a second positioning column installed in the first mounting hole, the fastening screw extends through the first positioning column, and one end of the elastic member away from the positioning pin is sleeved on the second positioning column.

10. The nail gun according to claim 1, characterized in that: The nailing seat is provided with a mounting tube, and the connecting tube slides axially in the mounting tube.

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