A nail gun missing nail reminder and anti-air-firing structure

Abstract

This utility model discloses a nail gun missing nail reminder and anti-dry-firing structure, relating to the field of electric nail guns. It includes a nail clip installed on the nail gun housing near the nozzle, for inserting nails, with the clip opening communicating with a punch guide; a slider protruding from the nail clip and slidably mounted along its length, with a nail pusher plate installed at the slider head extending into the nail clip, the pusher plate head forked to form a connecting rod actuating end and a nail pushing end. When the slider slides along the nail clip, the pusher end contacts and pushes the nail into the punch guide for the punch to strike; a control board installed inside the nail gun housing, electrically connected to an anti-dry-firing switch; and an anti-dry-firing connecting rod, one end of which is the switch actuating end, and the other end of the nail pusher plate actuating end. This utility model prevents the nail gun from working when there are no nails in the nail clip or approximately 5 nails remain, reminding the user to accurately insert nails into the clip and into the correct positions before the nail gun can continue operating.

Description

Technical Field

[0001] This utility model relates to the field of electric nail guns, specifically to a nail gun missing nail reminder and anti-dry-firing structure. Background Technology

[0002] When a nail gun is in operation, the punch strikes nails and other fasteners onto the object being fastened. However, when all the fasteners in the nail holder are used up, the lack of a warning means the user is unaware that the clip is empty and continues to use the nail gun, rendering the work ineffective. No fasteners are driven into the object, and the gun may even damage it, creating a large countersunk hole or a void. Therefore, it is necessary to design a nail gun with a nail shortage warning and anti-dry-firing mechanism to remind users to replenish nails in a timely manner. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a nail gun missing nail reminder and anti-dry-firing structure. When there are no nails or about 5 nails left in the nail clip, the nail gun will not work, reminding the user to accurately load nails into the nail clip and into the correct position so that the nail gun can continue to work.

[0004] The purpose of this utility model is achieved through the following technical solution: This nail gun missing nail reminder and anti-dry-fire structure is installed on the nail gun housing. The nail gun housing is further provided with a punch assembly, a cylinder, a punch drive mechanism, a punch release mechanism, a frame, and a punch guide. A nozzle is provided on the front side of the nail gun housing, and a cylinder is provided on the rear side. A frame is provided in front of the cylinder, and a punch guide is provided between the frame and the nozzle. The piston of the punch assembly is slidably installed in the cylinder, and a punch is connected to the piston. The punch passes through the frame and extends into the punch guide for guidance. A punch drive mechanism for driving the punch movement and a punch release mechanism for controlling the release of the punch are respectively provided on the left and right sides of the punch. This nail gun missing nail reminder and anti-dry-fire structure includes:

[0005] The nail clip is installed on the nail gun housing near the nozzle. The nail clip is used to insert the nail, and the opening of the nail clip is connected to the punch guide.

[0006] The slider is installed by exposing the nail clamp and sliding along its length. The pusher plate installed at the head of the slider extends into the nail clamp. The head of the pusher plate is forked to form a connecting rod actuating end and a pusher end. When the slider slides along the nail clamp, it contacts and pushes the nail into the punch guide through the pusher end so that the punch can strike it.

[0007] The control board, installed inside the nail gun housing, is powered on and connected to an anti-dry-fire switch; and

[0008] The anti-air strike linkage is slidably mounted on the back of the punch guide. One end of the anti-air strike linkage is a switch actuation end, used to contact or disengage the anti-air strike switch. The other end of the anti-air strike linkage is a nail pusher actuation end, which faces the nail clamp opening. When the slider slides to the vicinity of the nail clamp opening, the linkage actuation end gradually contacts and pushes the nail pusher actuation end, causing the switch actuation end to move relative to the anti-air strike switch. The anti-air strike switch generates a missing nail signal and sends it to the control main board.

[0009] As a further technical solution, the slider has grooves on both sides for embedding into the slide rail on the nail clip, the slider has an insertion port, the tail of the nail pusher plate extends into the insertion port, a spring is provided between the surface of the nail pusher plate and the slider, and the back of the nail pusher plate is supported on the slider by a support pin.

[0010] As a further technical solution, a pin hole for the support pin is opened on the slider, a boss is provided on the upper surface of the push pin plate, and a protrusion is provided on the slider facing the boss. The two ends of the spring are respectively installed on the boss and the protrusion.

[0011] As a further technical solution, a coil spring is installed inside the slider to keep the slider inclined to slide towards the nail clamp opening.

[0012] As a further technical solution, a limiting block is installed on the back of the punch guide body. The limiting block has a limiting protrusion. The middle part of the anti-aircraft gun linkage has a spring force-receiving end and a limiting groove. The limiting protrusion is inserted into the limiting groove to guide the sliding of the anti-aircraft gun linkage. A reset spring is provided between the spring force-receiving end and the limiting block.

[0013] As a further technical solution, the limiting block is fixed to the back of the punch guide body by fixing bolts, and the limiting block has a hole to facilitate the installation of the reset spring.

[0014] As a further technical solution, the anti-aircraft fire switch is normally open. When there is a lack of nails in the nail clip, the actuating end of the switch disengages from the anti-aircraft fire switch, causing the anti-aircraft fire switch to generate a missing nail signal; when there are enough nails in the nail clip, the actuating end of the switch remains in contact with the anti-aircraft fire switch.

[0015] As a further technical solution, the anti-aircraft fire switch adopts a normally closed type. When there is a lack of nails in the nail clip, the actuating end of the switch contacts the anti-aircraft fire switch, causing the anti-aircraft fire switch to generate a missing nail signal; when there are enough nails in the nail clip, the actuating end of the switch disengages from the anti-aircraft fire switch.

[0016] As a further technical solution, a safety switch is also electrically connected to the control board. The safety switch is connected in series with the anti-dry-fire switch. A push rod is provided on the back of the nozzle, and the other end of the push rod extends into the nail gun housing to contact or disengage the safety switch. A trigger switch is also provided on the nail gun housing. The trigger switch is electrically connected to the control board to send a start signal. The start signal is sent to the control board only when both the safety switch and the anti-dry-fire switch are closed, and the control board controls the action of the punch drive mechanism and the punch release mechanism.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. An anti-dry-firing switch is added to the control board. When there is no nail in the nail clip, the anti-dry-firing switch sends a nail shortage signal to the control board. At this time, even if the trigger switch is pressed, the nail cannot be fired, thus reminding the user to add nails to the nail clip in time to avoid dry firing.

[0019] 2. The push plate on the slider works in conjunction with the anti-air-firing linkage so that when the slider is about to slide to the nail clamp opening (about 5 nails left in the gun), the anti-air-firing linkage is activated, and the anti-air-firing switch generates a missing nail signal at the same time, leaving a certain space so that the gun nails will not be completely exhausted.

[0020] 3. The anti-aircraft linkage is guided by a limit block and works in conjunction with a return spring to ensure stability during operation;

[0021] 4. The control board is also equipped with a safety switch, which is connected in series with the anti-aircraft switch to further ensure the safety of nail driving. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model after being assembled with a nail gun.

[0023] Figure 2 This is a cross-sectional view of the present invention after it is assembled with a nail gun.

[0024] Figure 3 This is a schematic diagram of the nozzle structure in this utility model.

[0025] Figure 4 This is a schematic diagram of the control motherboard in this utility model.

[0026] Figure 5 This is a schematic diagram of the structure of the nail clip, punch guide, and control motherboard after assembly in this utility model.

[0027] Figure 6 This is a schematic diagram of the mounting structure of the slider on the nail clamp in this utility model.

[0028] Figure 7 This is a schematic diagram of the structure of the nail clamp when there are enough nails in the nail clamp of this utility model.

[0029] Figure 8 This is a schematic diagram of the structure of the nail clamp when there are insufficient nails in the nail clamp of this utility model.

[0030] Figure 9 This is a schematic diagram of the assembly of the slider, coil spring, and pusher plate in this utility model.

[0031] Figure 10 This is a schematic diagram of the structure of the coil spring and push pin plate in this utility model (with the slider hidden).

[0032] Figure 11 This is a schematic diagram of the structure in which the slider moves to the nail clamp opening and engages with the anti-aircraft fire linkage.

[0033] Figure 12 This is a circuit diagram of the normally open anti-aircraft switch used in Example 1 when it is not working or when the nail clamp is missing a nail.

[0034] Figure 13 This is a circuit diagram of the normally open anti-aircraft switch used in Example 1, when it is not in operation and the nail clamp is fitted with nails.

[0035] Figure 14 This is a circuit diagram of the normally open anti-aircraft switch used in Example 1, showing the normal working condition when the nail clip is installed.

[0036] Figure 15 This is a circuit diagram of the normally open anti-aircraft switch used in Example 1, showing the working condition when the nail clamp is missing a nail and cannot work properly.

[0037] Figure 16 This is a circuit diagram of the normally closed anti-aircraft switch used in Example 2, when it is not working or when the nail clamp is missing a nail.

[0038] Figure 17 This is a circuit diagram of the normally closed anti-aircraft switch used in Example 2, when it is not in operation and the nail clamp is installed.

[0039] Figure 18 This is a circuit diagram of the normally closed anti-aircraft switch used in Example 2, showing the normal working condition when the nail clamp is installed.

[0040] Figure 19 This is a circuit diagram of the normally closed anti-aircraft switch used in Example 2, showing the working condition when the nail clamp is missing a nail and cannot work properly.

[0041] Explanation of reference numerals in the attached drawings: 1. Nail gun housing; 2. Punch assembly; 21. Piston; 22. Punch; 3. Cylinder; 31. Upper end of cylinder; 32. Lower end of cylinder; 33. Sealed chamber; 4. Punch drive mechanism; 5. Punch release mechanism; 6. Frame; 7. Punch guide; 8. Nozzle; 9. Nail clip; 91. Slider; 911. Slide groove; 912. Insert; 913. Protrusion; 914. Pin hole; 915. Coil spring; 92. Slide rail; 93. Nail pusher plate; 931. Connecting rod actuating end. 932. Push nail end, 933. Boss, 94. Gun nail, 95. Support pin, 96. Spring, 10. Anti-air strike linkage, 101. Switch actuating end, 102. Spring force-bearing end, 103. Push nail plate actuating end, 104. Limiting groove, 11. Limiting block, 111. Reset spring, 112. Limiting protrusion, 113. Fixing bolt, 12. Control main board, 13. Trigger switch, 14. Battery pack, 15. Top rod, 16. Safety switch, 17. Anti-air strike switch. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings:

[0043] Example 1: As shown in the attached document Figures 1-15 As shown, this nail gun's missing nail reminder and anti-dry-firing structure includes a nail gun housing 1, a punch assembly 2, a piston 21, a punch 22, a cylinder 3, an upper cylinder end 31, a lower cylinder end 32, a sealed chamber 33, a punch drive mechanism 4, a punch release mechanism 5, a frame 6, a punch guide 7, a nozzle 8, a nail clip 9, a slider 91, a slide groove 911, a socket 912, a protrusion 913, a pin hole 914, a coil spring 915, a slide rail 92, a nail pusher plate 93, and a connecting rod. Actuating end 931, push nail end 932, boss 933, gun nail 94, support pin 95, spring 96, anti-air strike linkage 10, switch actuating end 101, spring force-bearing end 102, push nail plate actuating end 103, limit groove 104, limit block 11, reset spring 111, limit protrusion 112, fixing bolt 113, control main board 12, trigger switch 13, battery pack 14, push rod 15, safety switch 16 and anti-air strike switch 17.

[0044] Reference Appendix Figure 1 , 2 3. The nail gun missing nail reminder and anti-dry-firing structure is installed on the nail gun housing 1. The nail gun housing 1 is also equipped with a punch assembly 2, a cylinder 3, a punch drive mechanism 4, a punch release mechanism 5, a frame 6, and a punch guide 7. The nail gun housing 1 has a nozzle 8 on the front side and a cylinder 3 on the rear side. The frame 6 is located in front of the cylinder 3. The punch guide 7 is located between the frame 6 and the nozzle 8. The piston 21 of the punch assembly 2 is slidably installed in the cylinder 3. The punch 22 is connected to the piston 21. The punch 22 passes through the frame 6 and extends into the punch guide 7 to achieve guidance. The left and right sides of the punch 22 are respectively equipped with a punch drive mechanism 4 for driving the movement of the punch 22 and a punch release mechanism 5 for controlling the release of the punch 22.

[0045] like Figure 5 , 6 As shown, the nail clip 9 is installed on the nail gun housing 1 near the nozzle 8. The nail clip 9 is used to insert the nail 94. The opening of the nail clip 9 is connected to the punch guide 7, that is, the punch guide 7 has an opening for the nail 94 to enter.

[0046] Reference Appendix Figure 6 , 7 8. The slider 91 protrudes from the nail clamp 9 and slides along its length. The pusher plate 93 is installed at the head of the slider 91 and extends into the nail clamp 9. Figure 9 , 10 As shown, the head of the pusher plate 93 is forked to form a linkage actuating end 931 and a pusher end 932. When the slider 91 slides along the nail clamp 9, the pusher plate 93 contacts and pushes the nail 94 into the punch guide body 7 through the pusher end 932, so that the punch 22 can strike when it slides along the punch guide body 7.

[0047] like Figure 4 , 5 As shown, the control motherboard 12 is installed inside the nail gun housing 1. The control motherboard 12 is electrically connected to an anti-air strike switch 17 and a safety switch 16, and the safety switch 16 and the anti-air strike switch 17 are connected in series.

[0048] Reference Appendix Figure 9 , 10 11. The anti-aircraft gun linkage 10 is slidably mounted on the back of the punch guide 7. Preferably, a limiting block 11 is installed on the back of the punch guide 7, and the limiting block 11 is fixed to the back of the punch guide 7 by a fixing bolt 113. The surface of the limiting block 11 is provided with a limiting protrusion 112. The middle part of the anti-aircraft gun linkage 10 is provided with a spring force-receiving end 102 and a limiting groove 104. The limiting protrusion 112 is inserted into the limiting groove 104 to guide the sliding of the anti-aircraft gun linkage 10. At the same time, a hole is opened on the limiting block 11 to facilitate the installation of a return spring 111, and the return spring 111 is placed between the spring force-receiving end 102 and the limiting block 11.

[0049] Furthermore, one end of the anti-aircraft fire linkage 10 is a switch actuation end 101, which can contact or disengage from the anti-aircraft fire switch 17. The other end of the anti-aircraft fire linkage 10 is a nail pusher actuation end 103, wherein the nail pusher actuation end 103 is positioned towards the nail clamp 9 opening. When the slider 91 slides to the vicinity of the nail clamp 9 opening, the linkage actuation end 931 gradually contacts and pushes the nail pusher actuation end 103, causing the switch actuation end 101 to move relative to the anti-aircraft fire switch 17. The anti-aircraft fire switch 17 generates a missing nail signal and sends it to the control main board 12.

[0050] like Figure 9 , 10As shown in Figure 11, grooves 911 are provided on both sides of the slider 91. The grooves 911 can be embedded in the slide rails 92 on the nail clip 9. Preferably, a coil spring 915 is installed in the slider 91. The head of the coil spring 915 extends out of the slider 91 and is fixed near the opening of the nail clip 9. When the nail clip 9 is filled with gun nails 94, the slider 91 slides to the bottom of the nail clip 9. At the same time, the coil spring 915 is also stretched and stores elastic potential energy, so that the slider 91 maintains the tendency to slide towards the opening of the nail clip 9.

[0051] Preferably, the slider 91 has an insertion port 912, the tail of the pusher plate 93 extends into the insertion port 912, a spring 96 is provided between the surface of the pusher plate 93 and the slider 91, and the back of the pusher plate 93 is supported on the slider 91 by a support pin 95. Simultaneously, a pin hole 914 for the support pin 95 is provided on the slider 91, a boss 933 is provided on the upper surface of the pusher plate 93, and a protrusion 913 is provided on the slider 91 facing the boss 933. The two ends of the spring 96 are correspondingly installed on the boss 933 and the protrusion 913 to achieve positioning.

[0052] Reference Appendix Figure 1 , 5 6. Furthermore, a push rod 15 is slidably mounted on the back of the nozzle 8. The other end of the push rod 15 extends into the nail gun housing 1 and can contact or disengage from the safety switch 16. The nail gun housing 1 is also equipped with a trigger switch 13, which is electrically connected to the control main board 12 and is used to send a start signal. The trigger switch 13 sends a start signal to the control main board 12 only when both the safety switch 16 and the anti-dry-fire switch 17 are closed. The control main board 12 then controls the punch drive mechanism 4 and the punch release mechanism 5 to operate.

[0053] like Figures 12-15 As shown, the anti-aircraft fire switch 17 is normally open. When there is a missing nail in the nail clip 9, the switch actuating end 101 disengages from the anti-aircraft fire switch 17, causing the anti-aircraft fire switch 17 to generate a missing nail signal. When there are enough gun nails 94 in the nail clip 9, the switch actuating end 101 remains in contact with the anti-aircraft fire switch 17.

[0054] Example 2:

[0055] like Figures 16-19 As shown, the difference from Embodiment 1 is that the anti-aircraft switch 17 is normally closed. When there is a missing nail in the nail clip 9, the switch actuating end 101 contacts the anti-aircraft switch 17, causing the anti-aircraft switch 17 to generate a missing nail signal. When there are enough gun nails 94 in the nail clip 9, the switch actuating end 101 disengages from the anti-aircraft switch 17.

[0056] The working process of this utility model:

[0057] When the nail gun is firing nails, a sealed chamber 33 is formed between the piston 21 of the cylinder 3 and the punch assembly 2, and the piston 21 can move between the upper end 31 and the lower end 32 of the cylinder. When the piston 21 is at the lower end 32 of the cylinder, the sealed chamber 33 is pre-filled with gas (air or nitrogen) at a pressure greater than or equal to atmospheric pressure. The entire nail gun is powered by the battery pack 14.

[0058] like Figures 12-15 As shown, taking a normally open anti-aircraft fire switch as an example, before nailing, fasteners (nail 94) (more than 5 pieces) are pre-installed in the nail clip. Under the thrust of the coil spring 915 (or spring), the nail pusher plate 93 pushes the fasteners into the predetermined positions of the punch assembly and punch guide 7. When the push rod is pressed down, the safety switch is turned on. The anti-aircraft fire switch is normally open and connected in series with the safety switch. Under the thrust of the anti-aircraft fire reset spring, the anti-aircraft fire linkage makes the anti-aircraft fire switch turn on. At this time, a path is formed between the safety switch and the anti-aircraft fire switch. Pulling the trigger activates the trigger switch, sending a start signal to the control board. The control board then controls the punch drive mechanism to lift the punch assembly upwards. The punch assembly piston moves towards the upper end of the cylinder, compressing the sealing gas between the cylinder and the punch assembly piston. The gas pressure in the sealed chamber increases. When it is compressed to a certain fixed value, sufficient potential energy is stored on the punch assembly piston. At this point, the punch release mechanism instantly releases the punch assembly. The punch strikes the fastener inside the guide body along the punch assembly and fastener guide, driving the fastener into the object being fastened.

[0059] When only about 5 fasteners remain in the nail clip, the pusher plate 93 depresses the anti-aircraft firing linkage, disengaging the anti-aircraft firing switch. At this point, pressing down the push rod activates the safety switch, but only creates an open circuit with the anti-aircraft firing switch, preventing a start signal from being sent to the control board. Consequently, the control board cannot start operating, and the nail gun cannot function. Only after accurately inserting fasteners into the nail clip and moving the pusher plate 93 backward, disengaging the anti-aircraft firing linkage, and under the thrust of the anti-aircraft firing reset spring, does the anti-aircraft firing switch activate. This creates a circuit between the safety switch and the anti-aircraft firing switch. Pressing the trigger sends a start signal to the control board, and the nail gun resumes normal operation.

[0060] like Figures 16-19As shown, if a normally closed anti-aircraft switch is used, when the push rod is pressed down, the safety switch is activated. The anti-aircraft switch is normally closed and connected in series with the safety switch. Under the thrust of the anti-aircraft reset spring, the anti-aircraft linkage rod moves away from the anti-aircraft switch. At this time, the safety switch and the anti-aircraft switch form a path. Pulling the trigger activates the trigger switch, sending a start signal to the control board. The control board controls the punch drive mechanism to lift the needle assembly upwards. The punch assembly piston moves towards the upper end of the cylinder and compresses the sealing gas between the cylinder and the punch assembly piston. The gas pressure in the sealed chamber increases. When it is compressed to a certain fixed value, the punch assembly piston stores sufficient potential energy. At this time, the punch release mechanism releases the punch assembly instantaneously. The punch strikes the fastener in the guide body along the punch assembly and the fastener guide body, driving the fastener into the fastened object.

[0061] When only about 5 fasteners remain in the nail clip, the pusher plate 93 pushes the anti-aircraft linkage, which actuates the anti-aircraft switch, disengaging it. At this point, pressing down the push rod activates the safety switch, but only creates an open circuit between it and the anti-aircraft switch, preventing a start signal from reaching the main control board. Consequently, the main control board cannot start operating, and the nail gun cannot function. Only after accurately inserting fasteners into the nail clip and moving the pusher plate 93 backward, separating it from the anti-aircraft linkage, and allowing the anti-aircraft reset spring to activate the switch, creating a connection between the safety switch and the anti-aircraft switch, and pressing the trigger sends a start signal to the main control board, restoring the nail gun to normal operation.

[0062] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A nail gun missing nail reminder and anti-dry-firing structure, installed on a nail gun housing (1), wherein the nail gun housing (1) is further provided with a punch assembly (2), a cylinder (3), a punch drive mechanism (4), a punch release mechanism (5), a frame (6), and a punch guide (7), a nozzle (8) is provided on the front side of the nail gun housing (1), a cylinder (3) is provided on the rear side, a frame (6) is provided in front of the cylinder (3), a punch guide (7) is provided between the frame (6) and the nozzle (8), a piston (21) of the punch assembly (2) is slidably installed in the cylinder (3), a punch (22) is connected to the piston (21), the punch (22) passes through the frame (6) and extends into the punch guide (7) to achieve guidance, and a punch drive mechanism (4) for driving the movement of the punch (22) and a punch release mechanism (5) for controlling the release of the punch (22) are respectively provided on the left and right sides of the punch (22); characterized in that, include: The nail clip (9) is installed on the nail gun housing (1) near the nozzle (8). The nail clip (9) is used to insert the nail (94). The opening of the nail clip (9) is connected to the punch guide (7). The slider (91) exposes the nail clip (9) and slides along its length. The pusher plate (93) installed on the head of the slider (91) extends into the nail clip (9). The head of the pusher plate (93) is forked to form a connecting rod actuating end (931) and a pusher end (932). When the slider (91) slides along the nail clip (9), it contacts and pushes the nail (94) into the punch guide (7) through the pusher end (932) so that the punch (22) can strike it. A control board (12) is installed inside the nail gun housing (1), and an anti-dry-fire switch (17) is electrically connected to the control board (12); and An anti-aircraft firing linkage (10) is slidably mounted on the back of the punch guide (7). One end of the anti-aircraft firing linkage (10) is a switch actuation end (101) used to contact or disengage from the anti-aircraft firing switch (17). The other end of the anti-aircraft firing linkage (10) is a nail pusher actuation end (103). The nail pusher actuation end (103) faces the opening of the nail clip (9). When the slider (91) slides to the vicinity of the opening of the nail clip (9), the linkage actuation end (931) gradually contacts and pushes the nail pusher actuation end (103), causing the switch actuation end (101) to move relative to the anti-aircraft firing switch (17). The anti-aircraft firing switch (17) generates a missing nail signal and sends it to the control main board (12).

2. The nail gun missing nail reminder and anti-dry-firing structure according to claim 1, characterized in that: The slider (91) has grooves (911) on both sides for embedding into the slide rail (92) on the nail clip (9). The slider (91) has a socket (912), the tail of the pusher plate (93) extends into the socket (912), and a spring (96) is provided between the surface of the pusher plate (93) and the slider (91). The back of the pusher plate (93) is supported on the slider (91) by a support pin (95).

3. The nail gun missing nail reminder and anti-dry-firing structure according to claim 1, characterized in that: The slider (91) has a pin hole (914) for the support pin (95) to pass through. The upper surface of the pusher plate (93) has a boss (933). The slider (91) has a protrusion (913) facing the boss (933). The two ends of the spring (96) are respectively installed on the boss (933) and the protrusion (913).

4. The nail gun missing nail reminder and anti-dry-firing structure according to claim 1, characterized in that: A coil spring (915) is installed inside the slider (91) to keep the slider (91) inclined to slide towards the opening of the nail clamp (9).

5. The nail gun missing nail reminder and anti-dry-firing structure according to claim 1, characterized in that: The punch guide (7) is equipped with a limiting block (11) on its back. The limiting block (11) is provided with a limiting protrusion (112). The anti-aircraft gun connecting rod (10) is provided with a spring force end (102) and a limiting groove (104) in the middle. The limiting protrusion (112) is inserted into the limiting groove (104) to guide the sliding of the anti-aircraft gun connecting rod (10). A reset spring (111) is provided between the spring force end (102) and the limiting block (11).

6. The nail gun missing nail reminder and anti-dry-firing structure according to claim 5, characterized in that: The limiting block (11) is fixed to the back of the punch guide (7) by a fixing bolt (113). The limiting block (11) has a hole for easy installation of the reset spring (111).

7. The nail gun missing nail reminder and anti-dry-firing structure according to claim 1, characterized in that: The anti-aircraft switch (17) is normally open. When there is a missing nail in the nail clip (9), the switch actuating end (101) is disengaged from the anti-aircraft switch (17), causing the anti-aircraft switch (17) to generate a missing nail signal. When there are enough gun nails (94) in the nail clip (9), the switch actuating end (101) remains in contact with the anti-aircraft switch (17).

8. The nail gun missing nail reminder and anti-dry-firing structure according to claim 1, characterized in that: The anti-aircraft switch (17) is normally closed. When there is a missing nail in the nail clip (9), the switch actuating end (101) contacts the anti-aircraft switch (17), causing the anti-aircraft switch (17) to generate a missing nail signal. When there are enough gun nails (94) in the nail clip (9), the switch actuating end (101) disengages from the anti-aircraft switch (17).

9. The nail gun missing nail reminder and anti-dry-firing structure according to claim 1, characterized in that: The control board (12) is also electrically connected to a safety switch (16), which is connected in series with the anti-aircraft switch (17). The nozzle (8) is provided with a push rod (15) on the back, and the other end of the push rod (15) extends into the nail gun housing (1) to contact or disconnect the safety switch (16). The nail gun housing (1) is also provided with a trigger switch (13), which is electrically connected to the control board (12) to send a start signal. The start signal is sent to the control board (12) only when both the safety switch (16) and the anti-aircraft switch (17) are closed, and the control board (12) controls the punch drive mechanism (4) and the punch release mechanism (5) to operate.

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