Nail gun

Abstract

Provided is a nail gun, a dry-firing protection structure of a nail gun, a motor operation stopping structure of a nail gun, and a nail gun provided with a nail magazine that can be conveniently disassembled and assembled. The nail gun comprises a housing (1), a nail magazine (2), a control chip, a cam (2-1), a connecting rod (2-2), a first inductive sensor (2-3), a third inductive sensor (2-8), an induction block (2-9), and a nail firing structure (2-6), the nail magazine being detachably connected to the housing. The nail gun further comprises a protective part (4), the protective part comprising a trigger member (41), a first spring (42), a trigger switch (43), and an engagement member (44), and the engagement member being provided in the nail magazine. A dry-firing prevention block (441) is provided on the top of the engagement member. An engagement portion corresponding to the dry-firing prevention block is provided on the trigger member. A snap structure (3-22) is further arranged on an outer side surface of the nail magazine. Accordingly, it is possible to achieve a physical structure of dry-firing protection for a nail gun, to know the nail jam condition of a nail gun, and to rapidly disassemble and assemble a nail magazine.

Description

A nail gun Technical Field

[0001] The utility model relates to the technical field of nail guns, in particular to an empty nail protection structure of a nail gun, a motor stop structure of a nail gun, a nail gun, and a nail gun with a nail magazine that is easy to disassemble and assemble. Background Art

[0002] A nail gun is a finishing tool used to hammer specifically shaped nails into components to be installed. Depending on the type of power used, they are categorized as electric nail guns, pneumatic nail guns, gas nail guns, and hand nail guns. Electric and pneumatic nail guns are the two most widely used types. Pneumatic nail guns primarily use an external air pump to generate high air pressure, powering the nails within the channel. Electric nail guns primarily use a motor to control the contraction of the firing pin, compressing an energy storage component such as a spring or gas tank that works with the firing pin, and then releasing the firing pin to strike the nail. Compared to pneumatic nail guns, electric nail guns are smaller in size, more portable, and can be equipped with an independent power supply, offering a wide range of applications.

[0003] Existing electric nail guns, such as those described in Patent Publication No. CN212287494U, utilize a power source and a firing pin to achieve a set-up operation. A photoelectric sensor is also provided to detect the remaining nails, ensuring safe use. However, there are still cases where a nail is used up without being noticed. Therefore, a safe and effective nail gun empty nail protection structure is needed.

[0004] Existing electric nail guns, such as those described in patent publication number CN212287494U, disclose a nail gun that utilizes a power source and a firing pin to implement a set-up operation. A photoelectric sensor is also provided to detect the remaining nails. However, this patent only addresses the nail gun's empty nail protection, without considering the firing pin's start and stop positions. In conventional electric nail guns, due to the inertia of the power source after it stops, it is difficult to accurately control the firing pin's stop position. This hinders the ability to control the firing pin's state during subsequent startups, making it difficult to accurately determine whether the firing pin has struck a nail. Therefore, a need exists for a nail gun motor stop mechanism and a nail gun that facilitates control of the firing pin's position.

[0005] In existing electric nail guns, the magazine is typically connected to the main body of the nail gun via a threaded connection, achieving a relatively stable connection. For example, patent publication number CN214723920U discloses a nail gun anti-dry-fire device and a nail gun. The accompanying drawings show that the magazine and the nail gun are secured via a threaded connection. In existing nail guns, threaded magazines are difficult to assemble and disassemble, and require additional tools to release the threaded connection. This creates significant inconvenience when disassembling the gun for maintenance, storage, or portability. Therefore, a nail gun with an easily detachable magazine is desired. Summary of the Invention

[0006] The purpose of the utility model is to solve the deficiencies of the prior art and provide an empty nail protection structure for a nail gun.

[0007] In order to solve the above problems, the present invention adopts the following solutions:

[0008] A nail gun empty nail protection structure includes a shell, a nail magazine and a nail shooting part; the nail shooting part is arranged inside the shell; the nail shooting part includes a firing pin and a power source; the firing pin is connected to the power source; the nail magazine is detachably arranged on the shell; and further includes a protection part; the protection part includes a trigger member, a first spring, a trigger switch and a clamping member; the trigger member is slidably arranged near the nail shooting port on the shell; a first spring is also arranged between the trigger member and the shell; the trigger switch is arranged on the sliding path of the trigger member; the trigger switch is connected to the power source; the clamping member is arranged in the nail magazine, and an elastic member is arranged between the clamping member and the nail magazine; an anti-empty nailing block is arranged on the top of the clamping member, and a clamping portion corresponding to the anti-empty nailing block is provided on the trigger member.

[0009] Furthermore, the trigger switch is a contact switch or a photoelectric switch.

[0010] Furthermore, the trigger member includes a safety rod and an adjustment block; the safety rod is arranged on the shell, and the adjustment block is arranged near the nail shooting port of the shell; the adjustment block is sleeved on the safety rod through a threaded structure.

[0011] Furthermore, the adjustment block is in the shape of a semicircular piece, is arranged on the outside of the nail shooting port of the housing of the nail gun, and slides along the outer side wall of the nail shooting port.

[0012] Furthermore, the first spring is sleeved on the outer side of the safety rod.

[0013] Furthermore, a nail pushing member for pushing nails is provided in the nail box, and the clamping member is fixedly provided on the nail pushing member.

[0014] Furthermore, the elastic member is a coil spring or a second spring.

[0015] Furthermore, the side of the nail magazine is provided with at least one through hole for observing the number of nails remaining in the nail magazine.

[0016] The beneficial effects of the utility model are:

[0017] By setting a clamping member in the nail magazine, cooperating with the trigger member and the trigger switch, when the nail magazine is empty, the trigger member can be stuck to prevent the power source from continuing to operate when the nail is empty, thus achieving physical empty nail protection with a simple structure and stable effect;

[0018] The trigger member includes a safety rod and an adjustment block, and the screw thread structure between the safety rod and the adjustment block is used to adjust the nail shooting depth of the nail gun.

[0019] The through holes are provided on the side of the nail box, so that the remaining amount of nails in the nail box can be observed easily.

[0020] The utility model also provides a nail gun which is convenient for disassembling and assembling the nail magazine.

[0021] In order to solve the above problems, the present invention adopts the following solutions:

[0022] A nail gun with an easily disassembled nail magazine comprises a shell and a nail magazine; the nail magazine is detachably connected to the shell; the nail magazine is in the form of a square box; the interior of the nail magazine is provided with a hollow structure for accommodating a row of nails; the top of the nail magazine is connected to the shell; first clamping blocks extending outward are provided on both sides of the top of the nail magazine, and a first clamping groove corresponding to the first clamping block is provided on the shell; the opening of the first clamping groove faces the front side or the rear side; a clamping structure is further provided on the outer side of the nail magazine; the clamping structure comprises a paddle rotatably connected to the nail magazine and a torsion spring, the torsion spring being provided between the paddle and the nail magazine; a second clamping block corresponding to the paddle is further provided on the shell.

[0023] Furthermore, the first clamping block is in a bar shape, and the first clamping groove is provided with an opening matching the first clamping block.

[0024] Furthermore, one end of the first clamping block facing the first clamping slot is configured as an arc surface.

[0025] Furthermore, the opening of the first engaging slot faces forward.

[0026] Furthermore, the paddle is in the shape of a long plate as a whole, and a through hole is provided near the middle of the paddle; one end of the paddle is used for engaging with the second engaging block, and the other end is used for shifting.

[0027] Furthermore, the paddle is provided with a barb at one end close to the second clamping block, wherein the barb is in contact with the upper surface of the second clamping block.

[0028] Furthermore, a protruding block that cooperates with the torsion spring is provided on the outer side of the nail magazine; and the clamping structure is located between the protruding block and the second clamping block.

[0029] Furthermore, one end of the torsion spring away from the plectrum is directly connected to the hole structure or the slot structure provided on the outside of the nail magazine.

[0030] Furthermore, the upper surface of the nail magazine is provided with two raised square strips, which are respectively located on both sides of the nail outlet of the nail magazine; a second clamping groove matching the strip is provided at the bottom of the shell; the strip is embedded in the second clamping groove.

[0031] Furthermore, the side of the nail magazine is also provided with a long strip through hole communicating with the hollow structure inside the nail magazine.

[0032] The beneficial effects of the utility model are:

[0033] By providing a clamping structure and a first clamping block on the nail magazine, which respectively cooperate with the second clamping block and the first clamping groove on the shell, a detachable connection between the nail magazine and the shell is achieved, and the nail magazine and the shell can be conveniently separated by rotating the paddle in the clamping structure;

[0034] A barb is provided at one end of the paddle in the clamping structure close to the second clamping block to prevent the paddle from separating from the second clamping block due to the downward movement of the nail magazine;

[0035] By arranging a long strip on the upper surface of the nail magazine to cooperate with the second clamping groove on the shell, the nail magazine and the shell are further clamped and matched, thereby preventing the nail magazine from shaking left and right.

[0036] The utility model also provides a motor stop structure of a nail gun and the nail gun.

[0037] In order to solve the above problems, the present invention adopts the following solutions:

[0038] A motor stop structure for a nail gun includes a control chip, a cam, a connecting rod, and a first inductive sensor; the cam is arranged on the rotating shaft of the motor inside the nail gun; the connecting rod is arranged between the cam and the first inductive sensor; the first inductive sensor and the control chip are both arranged inside the housing of the nail gun, and the first inductive sensor is also connected to the control chip; and an elastic structure is also provided between the connecting rod and the housing of the nail gun to help the connecting rod reset.

[0039] Furthermore, the connecting rod includes a head rod, a middle rod and a tail rod; wherein the middle rod is arranged between the head rod and the tail rod, and the head rod, the middle rod and the tail rod are made in one piece.

[0040] Furthermore, the head rod is in the shape of a triangular plate as a whole, and the head rod and the cam are in the same plane.

[0041] Furthermore, the end of the tail rod is provided with a cylindrical hole that cooperates with the spring.

[0042] Furthermore, the tail rod is configured to be L-shaped; an end of the tail rod away from the middle rod is in contact with the first inductive sensor and the elastic structure at the same time.

[0043] A motor stop structure for a nail gun comprises a third induction sensor and an induction block; the third induction sensor and the induction block are arranged correspondingly, and the induction block is located on a firing pin of the nail gun.

[0044] Furthermore, the third induction sensor is a photoelectric sensor or a Hall sensor.

[0045] Furthermore, a second induction sensor is included for counting the number of times the trigger of the nail gun is pulled.

[0046] A nail gun includes the above-mentioned counting device, and also includes a nail shooting structure and a shell; the nail shooting structure includes a firing pin, a motor, a piston, a transmission gear set and a cylinder; the firing pin, the motor, the piston, the transmission gear set and the cylinder are all arranged inside the shell, the transmission gear set is respectively connected to the motor and the firing pin, a cylinder is provided at the end of the firing pin away from the motor, and a piston connected to the firing pin is also provided in the cylinder; the control chip, cam, connecting rod and first induction sensor in the counting device are respectively arranged inside the shell; the cam in the counting device is arranged on the rotating shaft of the motor.

[0047] Furthermore, it also includes a trigger, which is rotatably arranged inside the shell; a spring is arranged between the trigger and the shell; and a second induction sensor is arranged corresponding to the trigger of the nail gun.

[0048] The beneficial effects of the utility model are:

[0049] By setting up a motor stop structure of the nail gun including a cam, a connecting rod and other structures, the rotation angle of the motor is sensed, and the position of the firing pin in the nail gun is thereby known, and the firing pin is controlled to stop at a set position;

[0050] By setting the head rod of the connecting rod to be a triangular plate and the head rod and the cam in the same plane, on the one hand, the head rod is kept in contact with the cam as much as possible, and on the other hand, the load capacity of the head rod is enhanced, so that the head rod is not easily damaged during the rapid reciprocating motion following the cam;

[0051] By setting up a second induction sensor to sense the pressing state of the trigger, it is known whether the motor needs to be stopped. In addition, by comparing with the first induction sensor, the number of motor revolutions and the number of times the trigger is pressed can be counted respectively to verify the situation of nail gun jamming.

[0052] By setting a third induction sensor to sense the position of the induction block, the stopping position of the firing pin is controlled to ensure that the firing pin is in the set position when the nail gun is started and stopped. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] FIG1 is an overall schematic diagram of a nail gun according to Example 1;

[0054] FIG2 is a schematic diagram of the interior of the nail gun housing of Example 1;

[0055] FIG3 is a partial enlarged view of area A in FIG2 ;

[0056] FIG4 is a schematic diagram of the nail magazine and part of the protection portion of Example 1. FIG.

[0057] FIG5 is an overall schematic diagram of Example 2;

[0058] FIG6 is a schematic diagram of the internal structure of the housing of Example 2;

[0059] FIG7 is a schematic diagram of a motor stop structure and a partial nail shooting structure of Example 2;

[0060] FIG8 is a schematic diagram of a counting device and a nail shooting structure of Example 2;

[0061] FIG9 is a schematic diagram of the motor stop structure and the motor of Example 2;

[0062] FIG10 is a schematic diagram of the motor stop structure inside the nail gun of Example 3.

[0063] FIG11 is an overall schematic diagram of a nail gun according to Example 4;

[0064] FIG12 is a front view of the nail gun of Example 4;

[0065] FIG13 is a schematic diagram of the combination of a portion of the housing and the nail magazine of Example 4;

[0066] FIG14 is a schematic diagram of a nail magazine according to Example 4;

[0067] FIG15 is a schematic diagram of the shell portion cooperating with the nail magazine of Example 4. FIG.

[0068] Description of the accompanying symbols: housing 1, nail magazine 2, nail pusher 21, through hole 22, coil spring 23, nail shooting unit 3, firing pin 31, power source 32, protection unit 4, trigger member 41, safety lever 411, adjustment block 412, threaded structure 413, first spring 42, trigger switch 43, clamp 44, anti-air nailing block 441

[0069] Cam 2-1, connecting rod 2-2, head rod 2-21, middle rod 2-22, tail rod 2-23, first induction sensor 2-3, second induction sensor 2-4, housing 1, nail shooting structure 2-6, firing pin 2-61, motor 2-62, piston 2-63, transmission gear set 2-64, cylinder 2-65, trigger 2-7, third induction sensor 2-8, induction block 2-9.

[0070] Shell 1, first snap-fitting slot 3-11, second snap-fitting block 3-12, second snap-fitting slot 3-13, nail magazine 2, first snap-fitting block 3-21, snap-fitting structure 3-22, paddle 3-221, barb 3-222, torsion spring 3-223, protruding block 3-23, long strip block 3-24. DETAILED DESCRIPTION

[0071] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0072] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the figures only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated. Example 1

[0073] As shown in Figures 1 to 4, a nail gun empty nail protection structure includes a housing 1, a nail magazine 2, and a nail shooting unit 3; wherein the nail shooting unit 3 is arranged inside the housing 1; the nail shooting unit 3 includes a firing pin 31 and a power source 32; the firing pin 31 is connected to the power source 32 and is driven by the power source 32; the nail magazine 2 is detachably arranged on the housing 1; and further includes a protection unit 4; the protection unit 4 includes a trigger member 41, a first spring 42, a trigger switch 43, and a clamping member 44; wherein the trigger member 41 is slidably arranged near the nail shooting port on the housing 1. It should be noted that the nail shooting port of the housing 1 is the opening for the nail gun to shoot nails. In addition, in this example, the sliding direction of the trigger member 41 is consistent with the direction of nail shooting from the nail shooting port; A first spring 42 is also provided between the trigger member 41 and the shell 1. In this example, the first spring 42 is sleeved on the outside of the trigger member 41; the trigger switch 43 is provided on the sliding path of the trigger member 41, so that the trigger member 41 can contact the trigger switch 43 when sliding in the shell 1; the trigger switch 43 is connected to the power source 32; the clamping member 44 is provided in the nail magazine 2, and an elastic member is provided between the clamping member 44 and the nail magazine 2, and the elastic member provides the clamping member 44 with a thrust toward the nail outlet of the nail magazine 2, and the nail outlet of the nail magazine 2 is the opening for the nails to be ejected from the nail magazine 2; a raised anti-air nailing block 441 is provided on the top of the clamping member 44, and a clamping portion corresponding to the anti-air nailing block 441 is provided on the trigger member 41. When the nail magazine 2 is empty, the anti-empty nailing block 441 on the top of the clamping member 44 will press against the clamping part on the trigger member 41, so that the trigger member 41 is locked and difficult to move toward the trigger switch 43, thereby ensuring that the power source 32 will not be activated, thereby achieving empty nail protection.

[0074] The trigger switch 43 is a contact switch or a photoelectric switch, in this case a contact switch. It should be noted that when the trigger switch 43 is not triggered, the power source 32 cannot be started. Only by pressing the trigger member 41 and activating the trigger switch 43 can the rotational power source 32 be unlocked and enabled to receive control instructions and operate.

[0075] The trigger member 41 comprises a safety lever 411 and an adjustment block 412. The safety lever 411 is movably mounted on the housing 1, and the adjustment block 412 is positioned near the nail-shooting port of the housing 1. The adjustment block 412 is sleeved onto the safety lever 411 via a threaded structure 413. The threaded structure 413 allows adjustment of the length of the adjustment block 412 extending beyond the nail-shooting port, thereby adjusting the depth of the nail gun's nailing. The length of the adjustment block 412 extending beyond the nail-shooting port is within a set range. In this example, the adjustment block 412 is semicircular and is positioned outside the nail-shooting port of the nail gun's housing 1, sliding along the outer wall of the port. It should be noted that the safety lever 411's movable mounting on the housing 1 is specifically a sliding mounting, with a set sliding range. The sliding movement of the safety lever 411 activates the trigger switch 43. In this example, a first spring 42 is sleeved onto the exterior of the safety lever 411, with one end and the other end of the first spring 42 respectively abutting against the housing 1 and the annular plate on the safety lever 411.

[0076] The nail magazine 2 is provided with a nail pushing member 21 for pushing the nails, and an elastic member is provided between the nail pushing member 21 and the nail magazine 2, which is a second spring or a coil spring 23. In this example, the elastic member is a coil spring 23; the coil spring 23 is located on the nail pushing member 21, and the end of the coil spring 23 is stuck in the top of the nail magazine 2; in this example, the clamping member 44 is fixedly arranged on the nail pushing member 21, so that the elastic member arranged between the nail pushing member 21 and the nail magazine 2 can also drive the clamping member 44 to move; the clamping member 44 is arranged corresponding to the adjusting block 412. In this example, the nail pushing member 21 moves to the top of the nail magazine 2, that is, when there are no nails in the nail magazine 2, the anti-air nailing block 441 on the clamping member 44 is in contact with the outer side surface of the nail shooting port of the shell 1, so that the anti-air nailing block 441 on the clamping member 44 can be on the movement trajectory of the adjusting block 412 in the trigger member 41, thereby blocking the adjusting block 412 and preventing it from moving toward the trigger switch 43. It should be noted that the protruding height of the anti-air nailing block 441 on the clamping member 44 can be adjusted; in this example, the anti-air nailing block 441 and the clamping member 44 are tightened by screws.

[0077] It should be noted that, in some other embodiments, the clamping block that cooperates with the anti-empty nailing block 441 on the clamping member 44 can also be located on the safety rod 411, wherein a clamping block extending toward the side of the safety rod 411 is provided at the end of the safety rod 411 away from the trigger switch 43; when there is no nail in the nail box 2, the clamping member 44 is located on the movement trajectory of the clamping block, pressing against the clamping block to prevent it from moving toward the trigger switch 43, thereby realizing empty nail protection.

[0078] The side of the nail magazine 2 is further provided with at least one through hole 22 , through which the approximate remaining amount of nails therein can be observed.

[0079] During implementation, by setting a clamping member 44 in the nail magazine 2, cooperating with the trigger member 41 and the trigger switch 43, it is possible to jam the trigger member 41 when the nail magazine 2 is empty, thereby preventing the power source 32 from continuing to operate when the nail is empty, thereby achieving physical empty nail protection with a simple structure and stable effect; by setting the trigger member 41 to include a safety rod 411 and an adjustment block 412, and cooperating with the threaded structure 413 between the safety rod 411 and the adjustment block 412, the nail shooting depth of the nail gun can be adjusted; by setting a through hole 22 on the side of the nail magazine 2, it is convenient to observe the remaining amount of nails in the nail magazine 2. Example 2

[0080] As shown in Figures 6 to 9, a motor stop structure of a nail gun includes a control chip, a cam 2-1, a connecting rod 2-2 and a first inductive sensor 2-3, wherein the cam 2-1 is arranged on the rotating shaft of the motor 2-62 inside the nail gun; the connecting rod 2-2 is arranged between the cam 2-1 and the first inductive sensor 2-3; the first inductive sensor 2-3 and the control chip are both arranged inside the housing 1 of the nail gun, and the first inductive sensor 2-3 is also connected to the control chip; an elastic structure is also provided between the connecting rod 2-2 and the housing 1 of the nail gun, and the elastic structure applies a force toward the cam 2-1 to the connecting rod 2-2 to facilitate the resetting of the connecting rod 2-2. During the implementation process, the shaft of the motor 2-62 rotates, driving the cam 2-1 to rotate. After the cam 2-1 rotates, it will push the connecting rod 2-2, and cooperate with the elastic structure to realize the reciprocating motion of the connecting rod 2-2, and then repeatedly trigger the first sensing sensor 2-3. After the motor 2-62 stops, due to the effect of inertia, the shaft of the motor 2-62 will continue to rotate. Through the sensing sensor 2-3 and the cam 2-1, the posture of the motor 2-62 can be sensed, and the shaft of the motor can be controlled to stop at the set angle, and the striker 2-61 can be controlled to stop at the set position. It should be noted that the existing technical solution is to use an inductive sensor in conjunction with a cam to sense the rotation angle of the motor's shaft. In addition, the existing technology is also used to control the motor 2-62 to stop rotating. Therefore, the first inductive sensor 2-3 cooperates with the cam 2-1 set on the shaft of the motor 2-62 to control the motor to stop at the set angle. For example, when the motor 2-62 rotates five circles and the striker 2-61 completes a reciprocating motion, the motor 2-62 is controlled to stop when the first inductive sensor 2-3 senses that the motor has rotated five circles, and the striker 2-61 will return to its initial position.

[0081] The connecting rod 2-2 includes a head rod 2-21, a middle rod 2-22 and a tail rod 2-23; wherein the middle rod 2-22 is arranged between the head rod 2-21 and the tail rod 2-23. In this example, the head rod 2-21, the middle rod 2-22 and the tail rod 2-23 are made in one piece. The head rod 2-21 is in the shape of a triangular plate as a whole. The head rod 2-21 and the cam 2-1 are in the same plane, so that the head rod 2-21 can keep in contact with the cam 2-1 as much as possible. The tail rod 2-23 is partially set to be L-shaped, because the end of the tail rod 2-23 away from the middle rod 2-22 must be in contact with the first induction sensor 2-3 and the elastic structure at the same time; in this example, the elastic structure is a spring, and a cylindrical hole that cooperates with the spring is provided at the end of the tail rod 2-23.

[0082] The motor stop mechanism also includes a second sensor 2-4, which is positioned in correspondence with the nail gun's trigger 2-7. The second sensor 2-4 senses the pressing state of the trigger 2-7 and determines whether the motor 2-62 needs to be stopped. For example, when the trigger 2-7 is released, the second sensor 2-4 cooperates with the first sensor 2-3 to control the motor 2-62 to stop at a set angle. The second sensor 2-4 is also connected to the control chip in the motor stop mechanism. The trigger 2-7 in the nail gun is controlled by a spring positioned within the housing 1. A spring is provided between the trigger 2-7 and the housing 2-5.

[0083] The first inductive sensor 2 - 3 and the second inductive sensor 2 - 4 are both press switches.

[0084] A nail gun includes the above-mentioned motor stop structure, and also includes a nail shooting structure 2-6 and a shell 1; wherein the nail shooting structure 2-6 includes a firing pin 2-61, a motor 2-62, a piston 2-63, a transmission gear set 2-64 and a cylinder 2-65; the firing pin 2-61, the motor 2-62, the piston 2-63, the transmission gear set 2-64 and the cylinder 2-65 are all arranged inside the shell 1, and the transmission gear set 2-64 is respectively connected to the motor 2-62 and the firing pin 2-61 to realize the transmission connection between the motor 2-62 and the firing pin 2-61; a cylinder 2-65 is provided at the end of the firing pin 2-61 away from the motor 2-62, and a piston 2-63 connected to the firing pin 2-61 is also provided in the cylinder 2-65; the control chip, cam 2-1, connecting rod 2-2 and first induction sensor 2-3 in the counting device are respectively arranged inside the shell 1; the cam 2-1 in the motor stop structure is arranged on the rotating shaft of the motor 2-62.

[0085] During the implementation process, by setting the motor stop structure of the nail gun including the cam 2-1, the connecting rod 2-2 and other structures, the rotation angle of the motor 2-62 is sensed, and then the position of the firing pin 2-61 in the nail gun is known, and the firing pin 2-61 is controlled to stop at the set position; by setting the head rod 2-21 of the connecting rod 2-2 to be a triangular plate, and the head rod 2-21 and the cam 2-1 are in the same plane, on the one hand, the head rod 2-21 is kept in contact with the cam 2-1 as much as possible, and on the other hand, the load capacity of the head rod 2-21 is enhanced, so that the head rod 2-21 can move quickly when following the cam 2-1. It is not easy to be damaged during the return movement; by setting the second induction sensor 2-4, the pressing state of the trigger 2-7 is sensed to know whether the motor 2-62 needs to stop; the number of revolutions of the motor 2-62 and the number of times the trigger 2-7 is pressed are counted by the first induction sensor 2-3 and the second induction sensor 2-4 respectively, and the two are compared to know whether there is a situation such as a nail jam, because the motor 2-62 will stop when the nail is jammed. At this time, the number of triggering of the first induction sensor 2-3 remains unchanged, and the number of triggering of the second induction sensor 2-4 will increase as the trigger 2-7 is pressed, thereby knowing that a nail jam has occurred. Example 3

[0086] As shown in Figure 10, this embodiment is an improvement on Example 2. A motor stop mechanism for a nail gun includes a third sensor 2-8, a sensor block 2-9, and a second sensor 2-4. The second sensor 2-4 is positioned and arranged in the same manner as in Example 2. The third sensor 2-8 corresponds to the sensor block 2-9, which is located on the firing pin of the nail gun. The third sensor 2-8 is a photoelectric sensor or a Hall effect sensor; in this example, it is a photoelectric sensor.

[0087] During implementation, the third induction sensor 2-8 is set to sense the position of the induction block 2-9, thereby controlling the position of the firing pin to ensure that the firing pin can be in the set position when the nail gun is started and stopped. Example 4

[0088] As shown in Figures 11 to 15, a nail gun with an easy-to-disassemble nail magazine comprises a shell 1 and a nail magazine 2; wherein the nail magazine 2 is detachably connected to the shell 1; the nail magazine 2 is in the form of a square box; the interior of the nail magazine 2 is provided with a hollow structure for placing a row of nails; the top of the nail magazine 2 is connected to the shell 1; first clamping blocks 3-21 extending outward are provided on both sides of the top of the nail magazine 2, and first clamping grooves 3-11 corresponding to the first clamping blocks 3-21 are provided on the shell 1. In this example, the first clamping groove 3-11 is also divided into two parts, which respectively cooperate with the first clamping blocks 3-21 on both sides of the nail magazine 2; the opening of the first clamping groove 3-11 faces the front or rear side, and in this example, The opening of the first clamping groove 3-11 faces forward. It should be noted that the front side is the direction of nail shooting by the nail gun, and the back side is the opposite direction of nail shooting by the nail gun; the outer side surface of the nail magazine 2 is also provided with a clamping structure 3-22; the clamping structure 3-22 includes a paddle 3-221 rotatably connected to the nail magazine 2 and a torsion spring 3-223, and the torsion spring 3-223 is arranged between the paddle 3-221 and the nail magazine 2; the shell 1 is also provided with a second clamping block 3-12 corresponding to the paddle 3-221; in this case, the torsion spring 3-223 applies a force to the paddle 3-221 toward the second clamping block 3-12, so that the paddle 3-221 can remain clamped with the second clamping block 3-12 when not subject to external force.

[0089] The first engaging block 3-21 is in the shape of a bar, and the first engaging groove 3-11 is provided with an opening that matches the first engaging block 3-21, so that the first engaging block 3-21 can be embedded in the first engaging groove 3-11, thereby achieving an engaging connection between the first engaging block 3-21 and the first engaging groove 3-11. In this example, the end of the first engaging block 3-21 facing the first engaging groove 3-11 is provided with an arc surface, which facilitates pushing the first engaging block 3-21 into the first engaging groove 3-11 to achieve an engaging connection.

[0090] The paddle 3-221 is generally in the shape of an elongated plate. A through hole is provided near the middle of the paddle 3-221, which enables a rotational connection with the nail magazine 2. One end of the paddle 3-221 is used to engage with the second engaging block 3-12, and the other end is used to facilitate the movement of the paddle 3-221. The paddle 3-221 is also provided with a barb 3-222 at the end near the second engaging block 3-12. The barb 3-222 contacts the upper surface of the second engaging block 3-12 to prevent the paddle 3-221 from separating from the second engaging block 3-12 due to the downward movement of the nail magazine 2.

[0091] When the nail magazine 2 and the shell 1 of the nail gun are connected, from the back side to the front side are the paddle 3-221, the second clamping block 3-12, the first clamping groove 3-11 and the first clamping block 3-21 in the clamping structure 3-22; the paddle 3-221 applies a forward force to the second clamping block 3-12 due to the action of the torsion spring 3-223, pushing the shell 1 forward, and the first clamping block 3-21 on the nail magazine 2 is embedded in the first clamping groove 3-11 on the shell 1 with the opening facing forward, thereby realizing the clamping and locking between the nail magazine 2 and the shell 1.

[0092] The outer side of the nail magazine 2 is provided with a protrusion 3-23 that engages with the torsion spring 3-223. It should be noted that when the nail magazine 2 is connected to the housing 1, the engaging structure 3-22 is located between the protrusion 3-23 and the second engaging block 3-12, enabling the torsion spring 3-223 to push the paddle 3-221 toward the second engaging block 3-12. In some other embodiments, the end of the torsion spring 3-223 away from the paddle 3-221 can be directly connected to a hole structure or slot structure provided on the outer side of the nail magazine 2.

[0093] The upper surface of the nail magazine 2 is also provided with a raised square long block 3-24. In this example, two long blocks 3-24 are provided, and the two long blocks 3-24 are respectively located on both sides of the nail outlet of the nail magazine 2; a second clamping groove 3-13 matching the long block 3-24 is provided at the bottom of the shell 1, so that the long block 3-24 can be embedded in the second clamping groove 3-13 to prevent the nail magazine 2 from shaking left and right.

[0094] The side of the nail box 2 is also provided with a long strip through hole communicating with the hollow structure inside the nail box 2; the through hole makes it easy to observe the remaining amount of nails in the nail box 2.

[0095] During implementation, a clamping structure 3-22 and a first clamping block 3-21 are respectively provided on the nail magazine 2, which cooperate with the second clamping block 3-12 and the first clamping groove 3-11 on the shell 1 respectively, so as to realize a detachable connection between the nail magazine 2 and the shell 1, and the nail magazine 2 and the shell 1 can be conveniently separated by rotating the paddle 3-221 in the clamping structure 3-22; a barb 3-222 is provided at one end of the paddle 3-221 in the clamping structure 3-22 close to the second clamping block 3-12, so as to avoid the situation where the paddle 3-221 is separated from the second clamping block 3-12 due to the downward movement of the nail magazine 2; a long strip 3-24 is provided on the upper surface of the nail magazine 2 to cooperate with the second clamping groove 3-13 on the shell 1, so as to realize further clamping cooperation between the nail magazine 2 and the shell 1, and to prevent the nail magazine 2 from shaking left and right.

[0096] The above description is merely a specific example of the present invention and does not constitute any limitation thereto. It is obvious that those skilled in the art, after understanding the content and principles of the present invention, may make various modifications and changes in form and details without departing from the principles and structure of the present invention. However, such modifications and changes based on the concept of the present invention are still within the scope of protection of the claims of the present invention.

Claims

1. A nail gun empty nail protection structure, comprising a housing (1), a nail magazine (2) and a nail shooting unit (3); wherein the nail shooting unit (3) is arranged inside the housing (1); the nail shooting unit (3) comprises a firing pin (31) and a power source (32); the firing pin (31) and the power source (32) are connected; the nail magazine (2) is detachably arranged on the housing (1); and the characteristics are as follows: The invention also comprises a protection part (4); the protection part (4) comprises a trigger member (41), a first spring (42), a trigger switch (43) and a clamping member (44); wherein the trigger member (41) is slidably arranged near a nail shooting port on the housing (1); a first spring (42) is further arranged between the trigger member (41) and the housing (1); the trigger switch (43) is arranged on a sliding path of the trigger member (41); the trigger switch (43) is connected to a power source (32); the clamping member (44) is arranged in the nail magazine (2), and an elastic member is arranged between the clamping member (44) and the nail magazine (2); an anti-air nailing block (441) is arranged on the top of the clamping member (44), and a clamping portion corresponding to the anti-air nailing block (441) is arranged on the trigger member (41).

2. The empty nail protection structure of a nail gun according to claim 1, characterized in that: The trigger switch (43) is a contact switch or a photoelectric switch.

3. The empty nail protection structure of a nail gun according to claim 1, characterized in that: The trigger member (41) comprises a safety rod (411) and an adjustment block (412); the safety rod (411) is arranged on the housing (1), and the adjustment block (412) is arranged at a position close to a nail shooting opening of the housing (1); and the adjustment block (412) is sleeved on the safety rod (411) via a threaded structure (413).

4. The empty nail protection structure of a nail gun according to claim 3, characterized in that: The adjustment block (412) is in the shape of a semicircular sheet and is arranged outside the nail shooting port of the housing (1) of the nail gun and slides along the outer wall of the nail shooting port.

5. The empty nail protection structure of a nail gun according to claim 3, characterized in that: The first spring (42) is sleeved on the outside of the safety rod (411).

6. The empty nail protection structure of a nail gun according to claim 1, characterized in that: A nail pushing member (21) for pushing nails is arranged in the nail box (2); an elastic member is arranged between the nail pushing member (21) and the nail box (2); and a clamping member (44) is fixedly arranged on the nail pushing member (21).

7. The empty nail protection structure of a nail gun according to claim 6, characterized in that: The elastic member is a coil spring (23) or a second spring.

8. The empty nail protection structure of a nail gun according to claim 1, characterized in that: The side surface of the nail box (2) is also provided with at least one through hole (22) for observing the number of nails remaining in the nail box (2).

9. A motor stop structure for a nail gun, characterized in that: The invention comprises a control chip, a cam (2-1), a connecting rod (2-2) and a first inductive sensor (2-3); wherein the cam (2-1) is arranged on the rotating shaft of a motor (2-62) inside the nail gun; the connecting rod (2-2) is arranged between the cam (2-1) and the first inductive sensor (2-3); the first inductive sensor (2-3) and the control chip are both arranged inside a housing (1) of the nail gun, and the first inductive sensor (2-3) is also connected to the control chip; and an elastic structure is also arranged between the connecting rod (2-2) and the housing (1) of the nail gun to help the connecting rod (2-2) to reset.

10. The motor stop structure of a nail gun according to claim 9, characterized in that: The connecting rod (2-2) comprises a head rod (2-21), a middle rod (2-22) and a tail rod (2-23); wherein the middle rod (2-22) is arranged between the head rod (2-21) and the tail rod (2-23), and the head rod (2-21), the middle rod (2-22) and the tail rod (2-23) are made in one piece.

11. The motor stop structure of a nail gun according to claim 10, characterized in that: The head rod (2-21) is in the shape of a triangular plate as a whole, and the head rod (2-21) and the cam (2-1) are in the same plane.

12. The motor stop structure of a nail gun according to claim 10, characterized in that: The end of the tail rod (2-23) is provided with a cylindrical hole which cooperates with a spring.

13. The motor stop structure of a nail gun according to claim 10, characterized in that: The tail rod (2-23) is configured to be L-shaped; an end of the tail rod (2-23) away from the middle rod (2-22) is in contact with the first inductive sensor (2-3) and the elastic structure at the same time.

14. A motor stop structure for a nail gun, characterized in that: It comprises a third inductive sensor (2-8) and a sensing block (2-9); the third inductive sensor (2-8) and the sensing block (2-9) are arranged correspondingly, and the sensing block (2-9) is located on the firing pin of the nail gun.

15. The motor stop structure of a nail gun according to claim 14, characterized in that: The third induction sensor (2-8) is a photoelectric sensor or a Hall sensor.

16. The motor stop structure of a nail gun according to any one of claims 9 to 15, characterized in that: It also includes a second induction sensor (2-4) for counting the number of times the trigger (2-7) of the nail gun is pulled.

17. A nail gun, characterized in that: The invention comprises a motor stop structure as claimed in any one of claims 9 to 15, and further comprises a nail shooting structure (2-6) and a housing (1); wherein the nail shooting structure (2-6) comprises a firing pin (2-61), a motor (2-62), a piston (2-63), a transmission gear set (2-64) and a cylinder (2-65); the firing pin (2-61), the motor (2-62), the piston (2-63), the transmission gear set (2-64) and the cylinder (2-65) are all arranged inside the housing (1), and the transmission gear set (2-64) is The motor stop structure is respectively connected to the motor (2-62) and the striker (2-61); a cylinder (2-65) is arranged at one end of the striker (2-61) away from the motor (2-62); a piston (2-63) connected to the striker (2-61) is also arranged in the cylinder (2-65); the control chip, the cam (2-1), the connecting rod (2-2) and the first induction sensor (2-3) in the motor stop structure are respectively arranged inside the housing (1); and the cam (2-1) in the motor stop structure is arranged on the rotating shaft of the motor (2-62).

18. A nail gun according to claim 17, characterized in that: It also includes a trigger (2-7), which is rotatably arranged inside the shell (1); a spring is arranged between the trigger (2-7) and the shell (1); and a second induction sensor (2-4) is arranged corresponding to the trigger (2-7) of the nail gun.

19. A nail gun with a nail magazine that is easy to assemble and disassemble, comprising a housing (1) and a nail magazine (2); wherein the nail magazine (2) is detachably connected to the housing (1); characterized in that: The nail box (2) is in the form of a square box; the interior of the nail box (2) is provided with a hollow structure for accommodating a row of nails; the top of the nail box (2) is connected to the shell (1); first clamping blocks (3-21) extending outward are provided on both sides of the top of the nail box (2); a first clamping groove (3-11) corresponding to the first clamping block (3-21) is provided on the shell (1); the opening of the first clamping groove (3-11) faces the front side or the rear side; a clamping structure (3-22) is further provided on the outer side of the nail box (2); the clamping structure (3-22) comprises a paddle (3-221) rotatably connected to the nail box (2) and a torsion spring (3-223), the torsion spring (3-223) being provided between the paddle (3-221) and the nail box (2); and a second clamping block (3-12) corresponding to the paddle (3-221) is further provided on the shell (1).

20. The nail gun with a nail magazine that is easy to assemble and disassemble according to claim 19, characterized in that: The first clamping block (3-21) is in a strip shape, and the first clamping groove (3-11) is provided with an opening matching the first clamping block (3-21).

21. The nail gun with a nail magazine that is easy to assemble and disassemble according to claim 20, characterized in that: One end of the first clamping block (3-21) facing the first clamping groove (3-11) is arranged as a curved surface.

22. The nail gun with a nail magazine that is easy to assemble and disassemble according to claim 20, characterized in that: The opening of the first clamping slot (3-11) faces forward.

23. The nail gun with a nail magazine that is easy to assemble and disassemble according to claim 19, characterized in that: The paddle (3-221) is in the shape of a long plate as a whole, and a through hole is provided at a portion close to the middle of the paddle (3-221); one end of the paddle (3-221) is used for clamping with the second clamping block (3-12), and the other end is used for shifting.

24. The nail gun with a nail magazine that is easy to assemble and disassemble according to claim 23, characterized in that: The paddle (3-221) is also provided with a barb (3-222) at one end close to the second clamping block (3-12), wherein the barb (3-222) is in contact with the upper surface of the second clamping block (3-12).

25. The nail gun with a nail magazine that is easy to assemble and disassemble according to claim 19, characterized in that: A protruding block (3-23) matching the torsion spring (3-223) is arranged on the outer side of the nail magazine (2); and the clamping structure (3-22) is located between the protruding block (3-23) and the second clamping block (3-12).

26. The nail gun with a nail magazine that is easy to assemble and disassemble according to claim 19, characterized in that: One end of the torsion spring (3-223) away from the plectrum (3-221) is directly connected to a hole structure or a groove structure arranged on the outside of the nail magazine (2).

27. The nail gun with a nail magazine that is easy to assemble and disassemble according to claim 19, characterized in that: The upper surface of the nail magazine (2) is also provided with two raised square long strips (3-24), and the two long strips (3-24) are respectively located on both sides of the nail outlet of the nail magazine (2); a second clamping groove (3-13) matching the long strip (3-24) is provided at the bottom of the shell (1); and the long strip (3-24) is embedded in the second clamping groove (3-13).

28. The nail gun with a nail magazine that is easy to assemble and disassemble according to claim 19, characterized in that: The side surface of the nail box (2) is also provided with a long strip through hole communicating with the hollow structure inside the nail box (2).

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