Electric nail gun

Abstract

The utility model relates to a nail gun, in particular to an electric nail gun, which comprises a gun body provided with a handle and a button switch arranged on the handle; the compressed gas tank is arranged at one end of the gun body; the nail shooting needle is movably arranged on the gun body and is connected with the compressed air tank; the compression device is arranged on the gun body, is connected with the nail shooting needle and is used for driving the nail shooting needle to compress the gas in the compressed gas tank; the automatic nail bin is arranged on the gun body and is opposite to the nail shooting needle; the gun head device is arranged at the end of the gun body and connected with the automatic nail bin, and the nail shooting needle is movably inserted into the gun head device; the protection device is arranged on the gun head device; and the battery pack is detachably arranged at the tail end of the handle. The electric nail gun is powered by the lithium battery, the striking device is driven by the compression device to compress air in the air tank to form compressed air, the compressed air provides power for a shooting machine, and the electric nail gun is simple in overall structure, high in safety and convenient to use.

Description

Technical Field

[0001] The utility model relates to a nail gun, in particular to an electric nail gun. Background Art

[0002] A nail gun is also called a nail shooter. It is often called a nail gun because of its similar appearance and principle to a pistol. It is a fastening tool that uses blank bullets, gas or compressed air as power to drive nails into the building. The use of nail guns for nail fastening technology is an advanced modern fastening technology. Compared with traditional methods such as pre-embedded fixing, hole pouring, bolt connection, and welding, it has many advantages: it has its own energy source, thus getting rid of the burden of wires and air ducts, and is convenient for on-site and high-altitude operations; it is fast to operate and has a short construction period, which can greatly reduce the labor intensity of workers; it is reliable and safe, and can even solve some construction problems that were difficult to solve in the past; it saves money and reduces construction costs.

[0003] Existing nail guns mainly use energy generated by explosions such as blank bullets and gas as power, and some use compressed gas provided by external compressors as power. The safety of using blank bullets and gas is poor, and those using compressed air require a matching air compressor, which is inconvenient to carry. Utility Model Content

[0004] In order to solve the above problems of poor safety and inconvenience in carrying, the utility model provides an electric nail gun, and the specific technical solution is as follows:

[0005] An electric nail gun comprises: a gun body, provided with a handle and a button switch arranged on the handle; a compressed gas tank, arranged at one end of the gun body; a nail needle, movably arranged on the gun body and connected to the compressed gas tank; a compression device, arranged on the gun body and connected to the nail needle, used to drive the nail needle to compress the gas in the compressed gas tank; an automatic nail magazine, arranged on the gun body and opposite to the nail needle; a gun head device, arranged at the end of the gun body and connected to the automatic nail magazine, and the nail needle is movably inserted into the gun head device; a protective device, arranged on the gun head device; and a battery pack, detachably arranged at the end of the handle.

[0006] Preferably, the compressed gas tank includes: an outer tank body, which is arranged on the gun body and connected to the compression device; an inner tank body, which is arranged in the outer tank body; a rear end cover, which is arranged at the tail of the outer tank body; a gas nozzle, which is arranged on the rear end cover; a piston, which is movably arranged in the inner tank body and connected to the nail needle; and a buffer ring, which is arranged at the end of the outer tank body and is arranged opposite to the piston.

[0007] Preferably, the compression device includes: a compression seat, which is arranged on the gun body and connected to the compressed gas tank, and a rotating groove is provided on the compression seat; a compression plate, which is rotatably arranged in the rotating groove and has a release groove on one side; a compression shaft, which is arranged in an array on the compression plate and is arranged opposite to the compression groove arranged in an array on the nail needle; a reduction motor, which is arranged on the compression seat and connected to the compression plate.

[0008] Preferably, the gun head device includes: a gun head, which is arranged on the compression device and is provided with a snap-fit ​​groove, a nail shooting hole and a limiting hole respectively communicating with the nail shooting hole and the snap-fit ​​groove; a starting sleeve, which is movably arranged at the end of the nail shooting hole and is provided with a plurality of positioning grooves at the end; a nail shooting tube, which is movably arranged inside the nail shooting hole and is connected to the starting sleeve by a thread, and anti-slip grooves and anti-slip blocks are provided on both sides of the nail shooting tube; a retaining spring, which is arranged in the snap-fit ​​groove and inserted in the limiting hole, and the retaining spring is also arranged opposite to the anti-slip block; and a ball head plunger, which is arranged on the nail shooting hole and is arranged opposite to the positioning groove.

[0009] Furthermore, the protection device includes: a protection seat, which is slidably arranged in the protection installation groove of the gun head and is provided with a push rod movably inserted in the push groove of the gun head, and the push rod is arranged opposite to the nail tube; a protection rod, which is arranged on the protection seat; a protection spring, which is arranged between the protection installation groove and the protection seat; and a micro switch, which is arranged on the compression device and is arranged opposite to the protection rod.

[0010] Furthermore, it also includes: an insulating elastic column, which is arranged at the end of the protection rod and is arranged opposite to the micro switch.

[0011] Furthermore, it also includes: a guide shaft, which is arranged in the protection installation groove, the protection seat is slidably arranged on the guide shaft, the protection spring is movably inserted on the guide shaft, and the two ends are respectively connected to the protection seat and the protection installation groove.

[0012] Furthermore, it also includes an anti-air strike device, which is arranged on the protection seat and is respectively arranged opposite to the protection seat and the nail pushing seat of the automatic nail magazine.

[0013] Furthermore, the anti-aircraft device includes: an anti-aircraft rod, which is movably inserted into the anti-aircraft hole of the shooting gun head and is respectively arranged with the push pin seat and the protected seat; an anti-aircraft sleeve, which is arranged on the anti-aircraft hole; and an anti-aircraft spring, which is movably arranged in the anti-aircraft hole and is respectively connected with the anti-aircraft rod and the anti-aircraft hole.

[0014] Furthermore, the nail pushing seat is provided with an anti-air hitting plate arranged opposite to the anti-air hitting rod; the protection seat is provided with an anti-air hitting block arranged opposite to the anti-air hitting rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides an electric nail gun powered by a lithium battery. A compression device drives a striking device to compress air in a gas tank to form compressed gas, and the compressed gas provides power for the nail gun. The overall structure is simple, the safety is high, and the use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of an embodiment;

[0018] Figure 2 is a cross-sectional view of an embodiment;

[0019] Figure 3 is a stereogram of another viewing angle of the embodiment;

[0020] Figure 4 It is a schematic diagram of the explosion of the compression device and the nail needle;

[0021] Figure 5 It is a schematic diagram of the structure of the compression disk;

[0022] Figure 6 It is a schematic diagram of the assembly of the gun head device, the compression device and the nail needle;

[0023] Figure 7 It is a schematic diagram of the structure of the gun head device;

[0024] Figure 8 It is a cross-sectional view of the gun head device;

[0025] Fig. 9 It is a schematic diagram of the structure of the gun head;

[0026] Fig.10 It is a cross-sectional view of the gun head;

[0027] Fig.11 It is a structural schematic diagram of the starting casing;

[0028] Fig.12 It is a structural schematic diagram of a nail tube;

[0029] Fig.13 It is a schematic diagram of the structure of the protection seat;

[0030] Fig.14 It is a cross-sectional view of the anti-aircraft attack device. DETAILED DESCRIPTION

[0031] The utility model is now further described with reference to the accompanying drawings.

[0032] like Figures 1 to 14As shown, an electric nail gun includes a gun body 8, a compressed gas tank, a nail needle 64, a compression device, an automatic nail magazine 4, a gun head device, a protective device and a battery pack 84. The gun body 8 is made of plastic, and is provided with a handle 81, a motor handle 83 and a connecting handle 85. The connecting handle 85 is arranged below the motor handle 83 and is used to connect the automatic nail magazine 4. The automatic nail magazine 4 is an existing mature product. The battery pack 84 is detachably mounted at the end of the handle 81, which is convenient for replacing the battery pack 84. The battery pack 84 uses a lithium battery. A button switch 88 is also provided on the handle 81 to start nail shooting. The compressed gas tank is installed at one end of the gun body 8; the nail needle 64 is movably installed on the gun body 8 and connected to the compressed gas tank; the compression device is installed on the gun body 8 and connected to the nail needle 64, and is used to drive the nail needle 64 to compress the gas in the compressed gas tank; the automatic nail magazine 4 is detachably installed on the gun body 8 and is arranged opposite to the nail needle 64; the gun head device is installed at the end of the gun body 8 and is connected to the automatic nail magazine 4, and the nail needle 64 is movably inserted into the gun head device; the protective device is installed on the gun head device.

[0033] The handle 81 is provided with a hook 84 for convenient hanging on a tool bag around the waist.

[0034] like Figure 2 As shown, the compressed gas tank includes an outer tank body 51, an inner tank body 52, a rear end cover 55, a gas nozzle 56, a piston 53 and a buffer ring 54. The outer tank body 51 is mounted on the gun body 8 and connected to the compression device; the inner tank body 52 is mounted in the outer tank body 51 and is coaxially arranged with the outer tank body 51; the rear end cover 55 is sealed and mounted at the tail of the outer tank body 51, and the gas nozzle 56 is mounted on the rear end cover 55. The piston 53 is slidably inserted in the inner tank body 52, and the piston 53 is also connected to the nail needle 64. The buffer ring 54 is made of rubber and is mounted on one side of the compression device. The nail needle 64 is movably inserted on the buffer ring 54. The buffer ring 54 can not only realize the buffering of the piston 53, but also realize the sealing of the other end of the outer tank body 51. The outer tank body 51 and the inner tank body 52 form a larger space, which can effectively increase the air pressure, thereby increasing the force of nailing, so that the nail can be inserted into the steel plate or concrete.

[0035] like Figures 2 to 5As shown, the compression device includes a compression seat 3, a compression plate 62, a compression shaft 63 and a reduction motor 65. The compression seat 3 is mounted on the gun body 8. One end of the compression seat 3 is provided with a connector 33, which is connected to the outer tank body 51. The other end of the compression seat 3 is connected to the gun head device and is provided with a switch slot 31. A rotation slot 32 and a rotation hole 34 communicating with the rotation slot 32 are provided on one side of the compression seat 3. The compression plate 62 is movably inserted in the rotation slot 32, and both ends of the compression plate 62 are rotatably installed in the rotation hole 34. A plurality of compression shafts 63 are arranged in an array on the compression plate 62. A release slot 621 is provided on one side of the compression plate 62. The compression plate 62 is connected to the output shaft of the reduction motor 65. The reduction motor 65 is installed on the motor handle 83 and is connected to the compression seat 3. A plurality of compression grooves 641 are arranged in an array along the length direction of the nail needle 64, and the compression grooves 641 correspond to the compression shafts 63 one by one. When the reduction motor 65 drives the compression plate 62 to rotate, the compression shaft 63 on the compression plate 62 is inserted into the compression groove 641, and the nail needle 64 is pushed to move toward the inside of the compressed gas tank. The nail needle 64 pushes the piston 53 to compress the gas inside the compressed gas tank. When the compression plate 62 rotates to the release groove 621, the nail needle 64 is disconnected from the compression plate 62, and the nail needle 64 is released. The nail needle 64 moves quickly toward the gun head driven by the piston 53. The reduction motor 65 provides a large torque, which can push the piston 53 to compress the gas.

[0036] like Figures 6 to 13 As shown, the gun head device includes a gun head 13, a starting sleeve 11, a nail tube 12, a retaining spring and a ball plunger 19. The gun head 13 is installed at the end of the compression seat 3. A nail hole 130 is provided in the center of the gun head 13. A connecting groove 139 is also provided below the gun head 13. The connecting groove 139 is used to install an automatic nail magazine 4, and the automatic nail magazine 4 is used to transport nails. The gun head 13 is also provided with a clamping groove 137 and a limiting hole 138 located at the bottom of the clamping groove 137. The limiting hole 138 is also connected to the nail hole 130. The retaining spring is movably inserted in the clamping groove 137, and the retaining spring part enters the nail hole 130 through the limiting hole 138. The starting sleeve 11 is slidably inserted in the nail hole 130. A plurality of positioning grooves 111 are provided in an annular array on the outer circumferential surface of the starting sleeve 11, and the positioning grooves 111 are arranged along the axial direction to form a long strip of grooves. The end of the starting sleeve 11 is provided with an internal thread, and the end of the nail tube 12 is provided with an external thread. The starting sleeve 11 is connected to the nail tube 12 through the thread. When the starting sleeve 11 is rotated, the length of the starting sleeve 11 extending out of the gun head 13 can be adjusted. The nail tube 12 is movably inserted into the nail hole 130. The two sides of the nail tube 12 are symmetrically provided with anti-slip grooves 121 and anti-slip blocks 122. The retaining spring is movably inserted into the anti-slip groove 121 and is arranged opposite to the anti-slip block 122. The ball plunger 19 is installed on the gun head 13 and is located at one end of the nail hole 130. The ball plunger 19 is arranged opposite to the positioning groove 111 and is used to be inserted into the positioning groove 111 to prevent the starting sleeve 11 from rotating freely.

[0037] The nail tube 12 is provided with a nail feeding hole 120 and a nail feeding groove 123. The nail feeding groove 123 is located at the bottom of one end of the nail tube 12 and communicates with the connecting groove 139 for feeding nails.

[0038] In order to facilitate the installation of the ball plunger 19 , a connecting seat 133 is provided on the gun head 13 . A positioning through hole 136 is provided on the connecting seat 133 . The positioning through hole 136 is communicated with the nail hole 130 , and the ball plunger 19 is installed in the positioning through hole 136 .

[0039] When in use, the starting sleeve 11 is rotated as needed, and the starting sleeve 11 is adjusted in length to be extended or retracted through a thread, while the ball plunger 19 is inserted into the positioning groove 111 , and the ball plunger 19 prevents the starting sleeve 11 from rotating freely through the positioning groove 111 .

[0040] The reset of the start sleeve 11 is realized by a protective device, which includes a protective seat 21, a protective rod 22, a protective spring 25 and a micro switch. The gun head 13 is provided with a nail hole 130, a push groove 131 and a protective installation groove 132. The protective installation groove 132 is located above the tail of the gun head 13, and the push groove 131 is communicated with the nail hole 130 and the protective installation groove 132 respectively. Two guide shafts 24 are symmetrically installed in the protective installation groove 132, and a sliding hole 212 is provided on the protective seat 21. The sliding hole 212 of the protective seat 21 is slidably inserted on the guide shaft 24. The two guide shafts 24 improve the stability and reliability of the sliding of the protective seat 21. A push rod 211 is provided at one end of the protective seat 21, and a protective rod 22 is provided at the other end. The protective rod 22 is arranged opposite to the micro switch, and the micro switch is installed in the switch groove 31 of the compression seat 3. The protective seat 21 is located in the protective installation groove 132, and the push rod 211 is movably inserted in the push groove 131. The protection spring 25 is movably inserted on the guide shaft 24, and the two ends thereof are respectively against the side surfaces of the protection seat 21 and the pushing groove 131. The starting sleeve 11 is connected to the nail tube 12, and both are movably inserted in the nail hole 130. The starting sleeve 11 is also located outside the gun head 13, and the nail tube 12 is located on one side of the pushing groove 131, and the end thereof is against the end surface of the pushing rod 211. The protection spring 25 pushes the starting sleeve 11 outward through the pushing rod 211, so that the protection rod 22 is away from the micro switch. When nail shooting is required, the starting sleeve 11 is pushed against the position where nail shooting is required, and then the nail gun is pushed forward. The starting sleeve 11 pushes the pushing rod 211 through the nail tube 12, and the pushing rod 211 compresses the protection spring 25, and the protection seat 21 drives the protection rod 22 to move toward the direction of the micro switch. When the protection rod 22 is against the micro switch and is turned on, the button switch 88 corresponding to the trigger of the nail gun can be started, and then nail shooting is performed.

[0041] When the starting sleeve 11 does not rest on the object to be set, the nail gun cannot work normally and cannot shoot nails, thereby improving safety and avoiding accidents.

[0042] In order to reduce friction and improve the smoothness of sliding of the protection seat 21 , a sliding sleeve is further installed on the sliding hole 212 . The sliding sleeve can be a plastic sleeve or a self-lubricating sleeve. The sliding sleeve is slidably inserted on the guide shaft 24 .

[0043] An insulating elastic column 23 is mounted at the end of the protection rod 22. The insulating elastic column 23 is arranged opposite to the micro switch, which can reduce the impact force on the micro switch and achieve insulation, thereby improving the overall reliability and stability.

[0044] like Fig.14 As shown, it also includes an anti-air-hitting device, which is arranged on the protective seat 21 and is arranged opposite to the protective seat 21 and the nail pusher seat 41 of the automatic nail magazine 4, and is used to prevent air-hitting when there is no nail in the nail magazine. Air-hitting can easily cause damage to the nail gun. Specifically, the anti-air-hitting device includes an anti-air-hitting rod 26, an anti-air-hitting sleeve 27 and an anti-air-hitting spring 28. An anti-air-hitting hole 134 is provided on the gun head 13. The anti-air-hitting hole 134 is vertically arranged and located on one side of the protective mounting groove 132. The anti-air-hitting hole 134 is arranged opposite to the automatic nail magazine 4 below. The anti-air-hitting rod 26 is movably inserted into the anti-air-hitting hole 134, and a positioning ring is provided on the anti-air-hitting rod 26. The anti-air-hitting spring 28 is movably inserted on the anti-air-hitting rod 26, and the two ends are respectively against the hole shoulder and the positioning ring of the anti-air-hitting hole 134. The air defense sleeve 27 is installed at the bottom of the air defense hole 134 and is arranged relative to the positioning ring to limit the air defense rod 26 to rise and fall in the air defense hole 134. The air defense rod 26 is arranged relative to the air defense block 213 on the push nail seat 41.

[0045] An anti-air striking plate 411 is disposed on the nail pushing seat 41 and is arranged opposite to the anti-air striking rod 26 ; an anti-air striking block 213 is disposed on the protection seat 21 and is arranged opposite to the anti-air striking rod 26 .

[0046] When the nails in the nail magazine are used up, the anti-aircraft hitting plate 411 on the nail pushing seat 41 will push the anti-aircraft hitting rod 26 to move upward, and the top of the anti-aircraft hitting rod 26 moves to one side of the anti-aircraft hitting block 213 of the protective seat 21, and the anti-aircraft hitting block 213 limits the movement of the protective seat 21 toward the direction of the micro switch through the anti-aircraft hitting rod 26, thereby preventing air strikes.

[0047] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. An electric nail gun, characterized in that: include: A gun body (8) is provided with a handle (81) and a button switch (88) provided on the handle (81); A compressed gas tank is arranged at one end of the gun body (8); A nail-shooting needle (64) is movably disposed on the gun body (8) and connected to the compressed gas tank; A compression device, disposed on the gun body (8) and connected to the nail-driving needle (64), and used for driving the nail-driving needle (64) to compress the gas in the compressed gas tank; An automatic nail magazine (4) is arranged on the gun body (8) and is arranged opposite to the nail-shooting needle (64); A gun head device is arranged at the end of the gun body (8) and is connected to the automatic nail magazine (4); the nail-shooting needle (64) is movably inserted into the gun head device; A protective device, provided on the gun head device; and A battery pack (84) is detachably arranged at the end of the handle (81).

2. The electric nail gun according to claim 1, characterized in that: The compressed gas tank comprises: An outer tank body (51) is disposed on the gun body (8) and connected to the compression device; An inner tank body (52) is disposed inside the outer tank body (51); A rear end cover (55) is arranged at the rear end of the outer tank body (51); An air nozzle (56) is provided on the rear end cover (55); A piston (53) is movably disposed in the inner tank (52) and connected to the nail-driving needle (64); and A buffer ring (54) is arranged at the end of the outer tank body (51) and is arranged opposite to the piston (53).

3. The electric nail gun according to claim 1, characterized in that: The compression device comprises: A compression seat (3) is arranged on the gun body (8) and connected to the compressed gas tank, and a rotation groove (32) is provided on the compression seat (3); A compression plate (62) is rotatably disposed in the rotation groove (32) and has a release groove (621) on one side; Compression shafts (63) are arranged in an array on the compression disk (62) and are arranged opposite to the compression grooves (641) arranged in an array on the nail-shooting needles (64); The reduction motor (65) is arranged on the compression seat (3) and connected to the compression disc (62).

4. An electric nail gun according to any one of claims 1 to 3, characterized in that: The gun head device comprises: A gun head (13) is arranged on the compression device and is provided with a clamping groove (137), a nail shooting hole (130), and a limiting hole (138) respectively communicating with the nail shooting hole (130) and the clamping groove (137); A starting sleeve (11) is movably arranged at the end of the nail shooting hole (130), and the end is provided with a plurality of positioning grooves (111); A nail shooting tube (12) is movably arranged inside the nail shooting hole (130) and connected to the starting sleeve (11) via a thread, and anti-slip grooves (121) and anti-slip blocks (122) are provided on both sides of the nail shooting tube (12); A clamping spring is arranged in the clamping groove (137) and inserted into the limiting hole (138), and the clamping spring is also arranged opposite to the anti-dropping block (122); and A ball plunger (19) is disposed on the nail shooting hole (130) and is arranged opposite to the positioning groove (111).

5. The electric nail gun according to claim 4, characterized in that: The protection device comprises: A protection seat (21) is slidably disposed in the protection installation groove (132) of the gun head (13), and is provided with a push rod (211) movably inserted into the push groove (131) of the gun head (13), wherein the push rod (211) is arranged opposite to the nail shooting tube (12); A protection rod (22) is arranged on the protection seat (21); A protection spring (25) is disposed between the protection installation groove (132) and the protection seat (21); and A micro switch is arranged on the compression device and is arranged opposite to the protection rod (22).

6. The electric nail gun according to claim 5, characterized in that: Also includes: An insulating elastic column (23) is arranged at the end of the protection rod (22) and is arranged opposite to the micro switch.

7. The electric nail gun according to claim 5, characterized in that: Also includes: The guide shaft (24) is arranged in the protection installation groove (132), the protection seat (21) is slidably arranged on the guide shaft (24), the protection spring (25) is movably inserted on the guide shaft (24), and the two ends are respectively connected to the protection seat (21) and the protection installation groove (132).

8. The electric nail gun according to claim 5, characterized in that: It also includes an anti-runaway device, which is arranged on the protection seat (21) and is respectively arranged opposite to the protection seat (21) and the nail pushing seat (41) of the automatic nail magazine.

9. The electric nail gun according to claim 8, characterized in that: The anti-dry attack device comprises: An anti-aircraft hitting rod (26) is movably inserted into the anti-aircraft hitting hole (134) of the shooting gun head (13) and is respectively arranged opposite to the nail pushing seat (41) and the protected seat (21); an air defense sleeve (27), arranged on the air defense hole (134); and An anti-air strike spring (28) is movably disposed in the anti-air strike hole (134) and is respectively connected to the anti-air strike rod (26) and the anti-air strike hole (134).

10. The electric nail gun according to claim 9, characterized in that: The nail pushing seat (41) is provided with an anti-air striking plate (411) arranged opposite to the anti-air striking rod (26); The protection seat (21) is provided with an anti-air striking block (213) arranged opposite to the anti-air striking rod (26).

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