Nail gun

Abstract

To provide a nail gun, a structure for preventing empty nail driving of the nail gun, a motor stopping structure for the nail gun, and a nail gun in which a magazine can be easily attached and detached. [Solution] The nail gun comprises a body (1), a magazine (2), a control chip, a cam (2-1), a connecting rod (2-2), a first detection sensor (2-3), a third detection sensor (2-8), a detection block (2-9), and a nail ejection structure (2-6). The magazine and the body are removably connected, and a protective part (4) is also provided which comprises an operating member (41), a first spring (42), a trigger switch (43), and a locking device (44). The locking device is provided within the magazine, and an anti-empty nail block (441) is provided on the top of the locking device. An engaging part corresponding to the anti-empty nail block is provided on the operating member, and an engaging structure (3-22) is also provided on the outer surface of the magazine, thereby preventing empty nails in the physical structure of the nail gun, preventing nail jamming in the nail gun, and enabling quick attachment and detachment of the magazine.

Description

[Technical Field]

[0001] The present invention relates to the technical field of nail guns, and more particularly to a nail gun having a structure for preventing blank nailing, a motor stopping structure for a nail gun, and a nail gun with a magazine that can be easily attached and detached. [Background technology]

[0002] A nail gun is a finishing tool used to drive nails of a specific shape into an object. Depending on the type of power source, they can be divided into electric nail guns, pneumatic nail guns, gas nail guns, and manual nail guns, among which electric nail guns and pneumatic nail guns are the two most widely used. Pneumatic nail guns mainly use an external air pump to obtain high air pressure to power the nail in the passage. Electric nail guns mainly use a motor to control the contraction of the driver, compressing an energy storage element such as a spring or cylinder that cooperates with the driver, and then releasing the driver to strike the nail. Compared to air nail guns, electric nail guns are compact, easy to carry, and can be equipped with an independent power source, making them promising for a wide range of applications.

[0003] A conventional electric nail gun is, for example, as shown in Patent Document 1, which discloses a nail gun that has a power source, a driver, and other components installed within it to enable setting operations, and a photoelectric sensor to detect the number of nails remaining, ensuring safety in use. However, there are situations in which users do not notice that they have run out of nails even during use. Therefore, a safe and effective structure to prevent empty nails from being struck by a nail gun was needed.

[0004] Conventional electric nail guns, such as those shown in Patent Document 1, are equipped with a power source, a driver, and other components within the nail gun to achieve setup operations, and a photoelectric sensor to detect the remaining nail quantity. However, Patent Document 1 only focuses on preventing the nail gun from striking empty nails, and does not consider the start and stop positions of the driver. In conventional electric nail guns, inertia persists even after the power source is stopped, making it difficult to accurately control the stop position of the driver connected to the power source. This makes it difficult to grasp the driver's status when starting the nail, and makes it difficult to accurately determine whether the driver has struck a nail. Therefore, there was a need for a motor stop structure for a nail gun and a nail gun that facilitates driver position control.

[0005] In conventional electric nail guns, a relatively stable connection between the magazine and the nail gun body is typically achieved by a screw connection method. For example, Patent Document 2 discloses a nail gun blank prevention mechanism and a nail gun, and the accompanying drawings show that the magazine and the nail gun are secured by a screw connection. In conventional nail guns, the screw-connected magazine is inconvenient to attach and detach, and an additional attachment and detachment tool is required to release the screw connection structure, which causes considerable inconvenience when the nail gun needs to be disassembled for repair, storage, or transportation. Therefore, a nail gun with an easily detachable magazine is needed. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] China Patent Publication No. CN212287494U Publication [Patent Document 2] China Patent Publication No. CN214723920U Publication Summary of the Invention [Problem to be solved by the invention]

[0007] SUMMARY OF THE INVENTION An object of the present invention is to provide a structure for preventing blank nail strikes in a nail driver, which overcomes the drawbacks of the prior art. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention employs the following technical means.

[0009] A structure for preventing blank nail firing for a nail gun, comprising: a body, a magazine, and a nail ejection unit, the nail ejection unit being provided within the body; a driver and a power source, the driver being connected to the power source; and the magazine being removably provided on the body, the structure further comprising a protective unit having an operating member, a first spring, a trigger switch, and a locking device, the operating member being slidably provided on the body near the ejection port, the first spring being further provided between the operating member and the body, the trigger switch being provided on the sliding path of the operating member and connected to the power source, the locking device being provided within the magazine, an elastic member being provided between the locking device and the magazine, an anti-blank nail block being provided on the top of the locking device, and an engaging portion corresponding to the anti-blank nail block being provided on the operating member.

[0010] The trigger switch is a contact switch or a photoelectric switch.

[0011] The operating member also includes a safety rod and an adjuster. The safety rod is provided on the body, and the adjuster is provided near the injection port of the body and is fitted onto the safety rod via a threaded structure.

[0012] The adjuster is semicircular, is provided outside the ejection port of the body of the nail driver, and slides along the outer wall of the ejection port.

[0013] The first spring is fitted onto the outside of the safety rod.

[0014] A pusher for pushing the nails into the magazine is also provided, and the fastener is fixed to the pusher.

[0015] The elastic member is a coil spring or a second spring.

[0016] Also, at least one confirmation window is provided on the side of the magazine for checking the amount of nails remaining in the magazine.

[0017] The advantageous effects of the present invention include: A locking device is provided inside the magazine, which works in conjunction with the operating member and trigger switch to lock the operating member when the magazine runs out of nails, preventing the power source from continuing to operate when the nails are gone. This provides physical protection when the remaining nails are zero, and has a simple structure and stable effect. An operating member is provided that includes a safety rod and an adjuster, and by matching the screw structure between the safety rod and the adjuster, the nail driving depth of the nail gun can be adjusted; By providing a nail remaining amount confirmation window on the side of the magazine, the amount of nails remaining in the magazine can be easily seen.

[0018] The present invention also provides a nail gun with an easily attachable and detachable magazine.

[0019] In order to solve the above problems, the present invention employs the following technical means.

[0020] A nail gun with a magazine that can be easily attached and detached comprises a body and a magazine, the magazine and body being detachably connected, the magazine as a whole being box-shaped, the interior of the magazine being configured as a hollow space for storing connected nails, the top of the magazine being connected to the body, first engagement blocks extending outward are provided on both sides of the top of the magazine, a first engagement groove corresponding to the first engagement block is provided on the body, the opening of the first engagement groove faces the front or rear, an engagement structure is also provided on the outer surface of the magazine, the engagement structure comprises a lever rotatably connected to the magazine and a torsion spring, the torsion spring is provided between the lever and the magazine, and a second engagement block corresponding to the lever is also provided on the body.

[0021] The first engagement block is stick-shaped, and the first engagement groove is provided with an opening that fits the first engagement block.

[0022] The end of the first engagement block facing the first engagement groove is configured as an arcuate surface.

[0023] The opening of the first engagement groove faces forward.

[0024] The lever has a long plate shape as a whole, and a through hole is provided near the center of the lever. One end of the lever is used for engagement with the second engagement block, and the other end is used for operation.

[0025] The lever also has an inverted hook at the end closest to the second engagement block that comes into contact with the top surface of the second engagement block.

[0026] In addition, a protrusion that cooperates with the torsion spring is provided on the outer side of the magazine, and the engagement structure is located between the protrusion and the second engagement block.

[0027] The end of the torsion spring remote from the lever is directly connected to a hole or groove structure provided on the outside of the magazine.

[0028] In addition, two raised rectangular long blocks are provided on the top surface of the magazine, and the two long blocks are located on both sides of the nail discharge port of the magazine, and a second engagement groove that fits the long blocks is provided on the bottom of the body, and the long blocks are fitted into the second engagement groove.

[0029] Also, a long confirmation window communicating with the internal cavity is provided on the side of the magazine.

[0030] The advantageous effects of the present invention include: The magazine is provided with an engagement structure and a first engagement block, which cooperate with the second engagement block and the first engagement groove on the body, thereby realizing a detachable connection between the magazine and the body, and the magazine and the body can be easily separated by rotating the lever in the engagement structure; By providing a reverse hook at the end of the lever in the engagement structure near the second engagement block, the situation in which the lever is separated from the second engagement block due to downward movement of the magazine is prevented, By providing an elongated block on the top surface of the magazine which cooperates with a second engagement groove on the body, further engagement between the magazine and the body is achieved, preventing rattle of the magazine.

[0031] The present invention also provides a motor stopping structure for a nail gun and a nail gun.

[0032] In order to solve the above problems, the present invention employs the following technical means.

[0033] A motor stopping structure for a nail gun includes a control chip, a cam, a connecting rod, and a first detection sensor, the cam is attached to the rotation shaft of the motor in the nail gun, the connecting rod is attached between the cam and the first detection sensor, the first detection sensor and the control chip are both attached in the body of the nail gun, the first detection sensor is connected to the control chip, and an elastic structure is also provided between the connecting rod and the body of the nail gun to assist in returning the connecting rod.

[0034] The connecting rod also includes a head rod, an intermediate rod, and a tail rod, the intermediate rod being disposed between the head rod and the tail rod, and the head rod, intermediate rod, and tail rod being integrally manufactured.

[0035] The head rod has a triangular plate shape as a whole, and the head rod and the cam are on the same plane.

[0036] The end of the tail rod also has a cylindrical hole that fits over a spring.

[0037] The tail rod is configured in an L-shape, and the end of the tail rod away from the intermediate rod contacts the first sensor and the elastic structure simultaneously.

[0038] The motor stopping structure for a nail gun includes a third detection sensor and a detection block, the third detection sensor and the detection block being arranged corresponding to each other, and the detection block being located on the driver of the nail gun.

[0039] The third sensor is a photoelectric sensor or a Hall sensor.

[0040] It also has a second sensor for counting the number of times the trigger of the nail gun is pulled.

[0041] A nail gun includes a counting device, a nail ejection structure, and a body. The nail ejection structure includes a driver, a motor, a piston, a transmission gear set, and a cylinder. The driver, motor, piston, transmission gear set, and cylinder are all disposed within the body. The transmission gear set is connected to the motor and the driver, respectively. A cylinder is disposed at an end of the driver remote from the motor, and a piston is disposed within the cylinder, which is connected to the driver. The control chip, cam, connecting rod, and first sensing sensor within the counting device are disposed within the body, respectively. The cam within the counting device is mounted on the rotating shaft of the motor.

[0042] The nail gun also includes a trigger that is rotatably provided within the body, a spring is provided between the trigger and the body, and the second detection sensor is disposed in correspondence with the trigger of the nail gun.

[0043] The advantageous effects of the present invention include: By providing a motor stop structure including a cam and a connecting rod of the nail gun, the rotation angle of the motor is sensed, the position of the driver in the nail gun is grasped, and the driver is controlled to stop at a predetermined position; The head rod of the connecting rod is made triangular plate-shaped, and the head rod and cam are on the same plane. This allows the head rod to maintain as close contact with the cam as possible, and also strengthens the load capacity of the head rod, making it less likely to be damaged during the rapid reciprocating motion of the head rod following the cam. By providing a second detection sensor, it is possible to detect the trigger pull state and determine whether the motor needs to be stopped. By comparing with the first detection sensor, it is possible to count the number of motor rotations and the number of times the trigger is pulled, and it is possible to check the situation of the nail gun, such as when the nail is jammed. By providing a third sensor to sense the position of the sensing block, the stop position of the driver is controlled, and it is ensured that the driver is in a predetermined position when the nail gun is started and stopped. [Brief explanation of the drawings]

[0044] [Figure 1] 1 is an overall configuration diagram of a nail driver according to a first embodiment. [Figure 2] 1 is a schematic view showing the inside of a body of a nail driver according to a first embodiment. [Figure 3] FIG. 3 is a partially enlarged view of a portion A in FIG. 2. [Figure 4] 1 is a schematic diagram showing a magazine and a partial protector according to a first embodiment. FIG. [Figure 5] FIG. 10 is a diagram showing the overall configuration of a second embodiment. [Figure 6] FIG. 10 is a schematic view showing the internal structure of a body according to a second embodiment. [Figure 7] FIG. 10 is a schematic diagram showing a motor stopping structure and a partial nail ejection structure according to a second embodiment. [Figure 8] FIG. 10 is a schematic diagram showing a counting device and a nail ejection structure of a second embodiment. [Figure 9] FIG. 10 is a schematic diagram showing a motor stopping structure and a motor according to a second embodiment. [Figure 10] FIG. 10 is a schematic view showing a motor stopping structure in a nail driver according to a third embodiment. [Figure 11] FIG. 10 is a diagram showing the overall configuration of a nail driver according to a fourth embodiment. [Figure 12] FIG. 10 is a front view of a nail driver according to a fourth embodiment. [Figure 13] FIG. 10 is a schematic view showing a state in which a partial body and a magazine according to a fourth embodiment are joined together. [Figure 14] FIG. 10 is a schematic diagram of a magazine according to a fourth embodiment. [Figure 15]FIG. 10 is a schematic diagram of a body portion that fits with the magazine of the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0045] Hereinafter, embodiments of the present invention will be described through specific examples. Those skilled in the art will easily understand other advantages and effects of the present invention from the contents disclosed herein. The present invention may be implemented or applied through other different specific embodiments, and the details of the present specification may be variously modified or changed based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following examples and features in the examples may be combined with each other unless a contradiction arises.

[0046] The illustrations provided in the following examples merely show the basic concept of the present invention, and only components related to the present invention are shown in the drawings, and are not drawn according to the number, shape, and dimensions of the elements in actual implementation. In actual implementation, the shape, quantity, and proportion of each element can be arbitrarily changed, and the arrangement of elements may also be more complex.

[0047] Example 1 As shown in FIGS. 1 to 4, the nail gun includes a body 1, a magazine 2, and a nail ejection unit 3. The nail ejection unit 3 is provided within the body 1, and includes a driver 31 and a power source. The driver 31 is connected to and driven by the power source 32. The magazine 2 is removably provided on the body 1. The nail gun further includes a protection unit 4 including an actuating member 41, a first spring 42, a trigger switch 43, and a locking device 44. The actuating member 41 is slidably mounted on the body 1 near the ejection port. The ejection port in the body 1 is an opening through which the nail gun ejects nails. Note that in this embodiment, the sliding direction of the actuating member 41 coincides with the nail ejection direction of the ejection port. A first spring 42 is further provided between the actuating member 41 and the body 1. In this embodiment, the first spring 42 is fitted to the outside of the actuating member 41. A trigger switch 43 is provided on the sliding path of the operating member 41 and can come into contact with the trigger switch 43 when the operating member 41 slides within the body 1. The trigger switch 43 is connected to a power source, a locking device 44 is provided in the magazine 2, and an elastic member is provided between the locking device 44 and the magazine 2. The elastic member applies thrust to the locking device 44 toward the nail discharge port of the magazine 2, which is an opening for discharging nails from the magazine 2. A blank firing prevention block 441 is provided on the top of the locking device 44 and an engaging portion corresponding to the blank firing prevention block 441 is provided on the operating member 41. When the magazine 2 runs out of nails, the blank firing prevention block 441 on the top of the locking device 44 abuts on the engaging portion on the operating member 41, locking the operating member 41 and making it difficult for the operating member 41 to move toward the trigger switch 43, thereby preventing the power source 32 from starting and preventing blank nail firing.

[0048] The trigger switch 43 may be a contact switch or a photoelectric switch, and is a contact switch in this embodiment. It should be noted that when the trigger switch 43 is not triggered, the power source 32 cannot be started. Only by pressing the actuating member 41 to turn on the trigger switch 43 can the rotary power source 32 be unlocked and can operate under control commands.

[0049] The actuating member 41 includes a safety rod 411 and an adjuster 412. The safety rod 411 is movably mounted on the body 1. The adjuster 412 is mounted near the injection port of the body 1 and is fitted onto the safety rod 411 via a threaded structure 413. The threaded structure 413 allows the length of the adjuster 412 protruding from the injection port to be adjusted, thereby adjusting the driving depth of the nail gun. The length of the adjuster 412 protruding from the injection port is a preset value. In this embodiment, the adjuster 412 is semicircular and is mounted outside the injection port of the body 1 of the nail gun, sliding along the outer wall of the injection port. The movably mounted safety rod 411 on the body 1 is specifically a sliding structure, and the sliding length is a preset value. Note that when the safety rod 411 slides, the trigger switch 43 is triggered. In this embodiment, the first spring 42 is fitted onto the outside of the safety rod 411, and one end and both ends of the first spring 42 abut against annular pieces provided on the body 1 and the safety rod 411, respectively.

[0050] A pusher 21 is provided to push the nails into the magazine 2, and an elastic member is provided between the pusher 21 and the magazine 2, and the elastic member is a second spring or a coil spring 23. In this embodiment, the elastic member is the coil spring 23, which is located on the pusher 21, and an end of the coil spring 23 locks against the top of the magazine 2. In this embodiment, a locking device 44 is fixed to the pusher 21, and the locking device 44 can also be operated by the elastic member provided between the pusher 21 and the magazine 2. The locking device 44 is disposed in correspondence with the adjuster 412, and in this embodiment, when the pusher 21 moves to the top of the magazine 2, i.e., when there are no nails in the magazine 2, the blank-strike prevention block 441 on the locking device 44 comes into close contact with the outer surface of the injection port of the body 1, and is located on the movement path of the adjuster 412 in the operating member 41, thereby locking the adjuster 412 and preventing it from moving toward the trigger switch 43. It should be noted that the protruding height of the blank-strike prevention block 441 relative to the locking device 44 is adjustable. In this embodiment, the blank-strike prevention block 441 and the locking device 44 are fastened together with a screw.

[0051] It should be noted that in some other embodiments, the engagement block cooperating with the blank firing prevention block 441 on the locking device 44 can also be located on the safety rod 411, and an engagement 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 are no nails in the magazine 2, the locking device 44 is located on the movement path of the engagement block and abuts against the engagement block, preventing the engagement block from moving toward the trigger switch 43 and realizing blank firing prevention.

[0052] At least one nail remaining amount confirmation window 22 is provided on the side of the magazine 2, and through the nail remaining amount confirmation window 22, the approximate amount of nails remaining in the magazine can be visually confirmed.

[0053] In the process of implementation, a locking device 44 is provided in the magazine 2, which cooperates with the operating member 41 and the trigger switch 43 to lock the operating member 41 when there are no nails left in the magazine 2, preventing the power source from continuing to operate when there are no nails left, thereby realizing physical protection when the number of nails remaining is zero. The structure is simple and the effect is stable. The operating member 41 is provided with a safety rod 411 and an adjuster 412, and the screw structure 413 between the safety rod 411 and the adjuster 412 allows the nail driving depth of the nail gun to be adjusted. A nail remaining amount confirmation window is provided on the side of the magazine 2, so that the number of nails remaining in the magazine 2 can be easily seen.

[0054] Example 2 6-9, the motor stopping structure of a nail gun includes a control chip, a cam 2-1, a connecting rod 2-2, and a first sensor 2-3. The cam 2-1 is mounted on the rotating shaft of a motor 2-62 in the nail gun, and the connecting rod 2-2 is mounted between the cam 2-1 and the first sensor 2-3. The first sensor 2-3 and the control chip are both mounted in the body 1 of the nail gun, and the first sensor 2-3 is connected to the control chip. An elastic structure is also provided between the connecting rod 2-2 and the body 1 of the nail gun, and the elastic structure applies a force to the connecting rod 2-2 toward the cam 2-1 to facilitate the return of the connecting rod 2-2. During operation, the rotating shaft of the motor 2-62 rotates to rotate the cam 2-1. After the cam 2-1 rotates, it pushes the connecting rod 2-2, which cooperates with the elastic structure to realize the reciprocating motion of the connecting rod 2-2, thereby repeatedly triggering the first sensor 2-3. After the motor 2-62 stops, the rotating shaft of the motor 2-62 continues to rotate due to inertia. The sensor 2-3, working in conjunction with the cam 2-1, detects the position of the motor 2-62 and controls the motor's rotating shaft to stop at a predetermined angle, thereby controlling the driver 2-61 to stop at a predetermined position. It should be noted that using a sensor in conjunction with a cam to detect the rotation angle of the motor's rotating shaft is a conventional technical method, and the control of stopping the rotation of the motor's rotating shaft also uses conventional technology. Therefore, the first sensor 2-3 can cooperate with the cam 2-1 attached to the rotating shaft of the motor 2-62 to control the motor to stop at a predetermined rotation angle. For example, after the motor 2-62 rotates five times and the driver 2-61 completes one reciprocating motion, the first sensor 2-3 detects that the motor has rotated five times and controls the motor 2-62 to stop, causing the driver 2-61 to return to its original position.

[0055] The connecting rod 2-2 includes a head rod 2-21, an intermediate rod 2-22, and a tail rod 2-23. The intermediate rod 2-22 is disposed between the head rod 2-21 and the tail rod 2-23. In this embodiment, the head rod 2-21, intermediate rod 2-22, and tail rod 2-23 are integrally manufactured. The head rod 2-21 has a triangular plate shape as a whole, and the head rod 2-21 and the cam 2-1 are on the same plane, maintaining the head rod 2-21 in contact with the cam 2-1 as much as possible. The tail rod 2-23 is partially L-shaped because the end of the tail rod 2-23 away from the intermediate rod 2-22 simultaneously contacts the first sensor 2-3 and the elastic structure. In this embodiment, the elastic structure is a spring, and a cylindrical hole is provided at the end of the tail rod 2-23 to fit the spring.

[0056] The motor stopping mechanism further includes a second sensor 2-4, which is provided corresponding to the trigger 2-7 of the nail gun and detects the pulling state of the trigger 2-7 to detect the motor 2-62 and determine whether the motor 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 predetermined angle. The second sensor 2-4 is also connected to a control chip in the motor stopping mechanism. The trigger 2-7 in the nail gun is rotatably provided within the body 1, and a spring is provided between the trigger 2-7 and the body 2-5.

[0057] The first and second sensors 2-3 and 2-4 are both push switches.

[0058] A nail gun is provided with the motor stop structure, a nail ejection structure 2-6, and a body 1. The nail ejection structure 2-6 includes a driver 2-61, a motor 2-62, a piston 2-63, a transmission gear set 2-64, and a cylinder 2-65. The driver 2-61, the motor 2-62, the piston 2-63, the transmission gear set 2-64, and the cylinder 2-65 are all disposed within the body 1. The transmission gear set 2-64 is connected to the motor 2-62 and the driver 2-61, respectively, thereby realizing a power-transmittable connection between the motor 2-62 and the driver 2-61. A cylinder 2-65 is provided at the end of the driver 2-61 away from the motor 2-62, and a piston 2-63 connected to the driver 2-61 is provided within the cylinder 2-65. The control chip, cam 2-1, connecting rod 2-2 and first sensing sensor 2-3 in the counting device are each arranged within the body 1, and the cam 2-1 in the motor stopping structure is provided on the rotating shaft of the motor 2-62.

[0059] In the implementation process, a motor stop mechanism including the cam 2-1 and connecting rod 2-2 of the nail gun is provided to detect the rotation angle of the motor 2-62, grasp the position of the driver 2-61 in the nail gun, and control the driver 2-61 to stop at a predetermined position. The head rod 2-21 of the connecting rod 2-2 is triangular plate-shaped, and the head rod 2-21 and the cam 2-1 are on the same plane, which on the one hand allows the head rod 2-21 to maintain contact with the cam 2-1 as much as possible, and on the other hand, strengthens the load capacity of the head rod 2-21 so that it is not easily damaged during the rapid reciprocating movement of the head rod 2-21 following the cam 2-1. A second detection sensor 2-4 is provided to detect the pulling state of the trigger 2-7 and determine whether the motor 2-62 needs to be stopped. The first and second detection sensors 2-3 and 2-4 count the number of rotations of the motor 2-62 and the number of times the trigger 2-7 is pulled, respectively, and by comparing the two it is determined whether a situation such as nail jamming has occurred. If a nail jam occurs, the motor 2-62 will stop. At this time, the number of triggers of the first detection sensor 2-3 will not change, but the number of triggers of the second detection sensor 2-4 will increase as the trigger 2-7 is pulled, making it possible to know that a situation such as nail jamming has occurred.

[0060] Example 3 As shown in Figure 10, this embodiment is an improvement on the second embodiment, and is a motor stopping structure for a nail gun, comprising a third sensor 2-8, a sensing block 2-9, and a second sensor 2-4. The second sensor 2-4 is installed in the same position and manner as in the second embodiment, and the third sensor 2-8 is disposed corresponding to the sensing block 2-9, which is located on the driver of the nail gun. The third sensor 2-8 is a photoelectric sensor or a Hall sensor, and in this embodiment, it is a photoelectric sensor.

[0061] In the implementation process, a third sensor 2-8 is provided to sense the position of the sensing block 2-9, thereby controlling the stop position of the driver and ensuring that the driver is in a predetermined position when the nail gun is started and stopped.

[0062] Example 4 11 to 15, a nail gun with a easily detachable magazine includes a body 1 and a magazine 2, which are detachably coupled to the body 1. The magazine 2 is box-shaped as a whole, with a hollow interior for storing nails. The top of the magazine 2 is coupled to the body 1. First engagement blocks 3-21 extend outward on both sides of the top of the magazine 2. The body 1 is provided with first engagement grooves 3-11 corresponding to the first engagement blocks 3-21. In this embodiment, the first engagement grooves 3-11 are also divided into two, each of which fits into the first engagement blocks 3-21 on both sides of the magazine 2. The openings of the first engagement grooves 3-11 face either the front or rear. In this embodiment, the opening of the first engagement groove 3-11 faces forward. Note that the front side is the direction in which nails are ejected from the nail gun, and the rear side is the opposite direction to the direction in which nails are ejected from the nail gun. An engagement structure 3-22 is also provided on the outer surface of the magazine 2, and the engagement structure 3-22 includes a lever 3-221 rotatably connected to the magazine 2 and a torsion spring 3-223. The torsion spring 3-223 is provided between the lever 3-221 and the magazine 2, and a second engagement block 3-12 corresponding to the lever 3-221 is also provided on the body 1. In this embodiment, the torsion spring 3-223 applies a force to the lever 3-221 toward the second engagement block 3-12, so that the lever 3-221 remains engaged with the second engagement block 3-12 when not subjected to an external force.

[0063] The first engagement block 3-21 is stick-shaped, and the first engagement groove 3-11 has an opening that fits the first engagement block 3-21. By fitting the first engagement block 3-21 into the first engagement groove 3-11, the first engagement block 3-21 can be engaged with the first engagement groove 3-11. In this embodiment, the end of the first engagement block 3-21 facing the first engagement groove 3-11 is configured as an arc surface, making it easy to push the first engagement block 3-21 into the first engagement groove 3-11 and engage it.

[0064] The lever 3-221 has a long plate-like shape overall, and a through-hole is provided near the center of the lever 3-221, through which rotatable connection with the magazine 2 is achieved. One end of the lever 3-221 is used for engaging with the second engagement block 3-12, and the other end is used for easily operating the lever 3-221. An inverted hook 3-222 that comes into contact with the upper surface of the second engagement block 3-12 is also provided at the end of the lever 3-221 closest to the second engagement block 3-12, and prevents the lever 3-221 from separating from the second engagement block 3-12 when the magazine 2 moves downward.

[0065] When the magazine 2 and the nail gun body 1 are connected, the lever 3-221, the second engagement block 3-12, the first engagement groove 3-11, and the first engagement block 3-21 are arranged in this order from the rear to the front in the engagement structure 3-22, and the lever 3-221 applies a forward force to the second engagement block 3-12 through the action of the torsion spring 3-223, pushing the body 1 forward.The first engagement block 3-21 on the magazine 2 is fitted into the first engagement groove 3-11 facing the front of the opening on the body 1, thereby achieving engagement between the magazine 2 and the body 1.

[0066] A protrusion 3-23 that cooperates with the torsion spring 3-223 is provided on the outside of the magazine 2. It should be noted that when the magazine 2 and the body 1 are connected, the engagement structure 3-22 is located between the protrusion 3-23 and the second engagement block 3-12, so that the torsion spring 3-223 can push the lever 3-221 to move toward the second engagement block 3-12. In some other embodiments, the end of the torsion spring 3-223 away from the lever 3-221 can be directly connected to a hole or groove structure provided on the outside of the magazine 2.

[0067] A raised rectangular long block 3-24 is also provided on the top surface of the magazine 2, and in this embodiment, two long blocks 3-24 are provided, and the two long blocks 3-24 are located on both sides of the nail discharge port of the magazine 2, and a second engagement groove 3-13 that fits the long block 3-24 is provided on the bottom of the body 1, and by fitting the long block 3-24 into the second engagement groove 3-13, it is possible to prevent the magazine 2 from rattling.

[0068] A long confirmation window communicating with the internal cavity is also provided on the side of the magazine 2, and the amount of nails remaining in the magazine 2 can be easily seen through the confirmation window.

[0069] During implementation, the magazine 2 is provided with an engagement structure 3-22 and a first engagement block 3-21, which cooperate with the second engagement block 3-12 and the first engagement groove of the body 1 to realize a detachable connection between the magazine 2 and the body 1. The magazine 2 can be easily separated from the body 1 by rotating the lever 3-221 in the engagement structure 3-22. A reverse hook is provided at the end of the lever 3-221 in the engagement structure 3-22 close to the second engagement block 3-12 to prevent the lever 3-221 from being separated from the second engagement block 3-12 due to downward movement of the magazine 2. A long block 3-24 is provided on the top surface of the magazine 2 to cooperate with the second engagement groove of the body 1, thereby achieving further engagement between the magazine 2 and the body 1 and preventing the magazine 2 from rattling.

[0070] The above description is merely an example of the present invention and does not limit the present invention. After understanding the content and principles of the present invention, it will be apparent to those skilled in the art that various modifications and changes in form and details can be made without departing from the principles and structure of the present invention. However, these modifications and changes based on the technical idea of ​​the present invention are still included within the scope of the claims of the present invention. [Explanation of symbols]

[0071] 1 Body 2 Magazines 21 Pusher 22 Confirmation window 23 Coil spring 3 Nail injection part 31 Drivers 32 Power source 4 Protective part 41 Actuating member 411 Safety Rod 412 Adjuster 413 Screw structure 42 First spring 43 Trigger switch 44 Locking device 441 Block for preventing empty shots 2-1 Cam 2-2 Connection 2-21 Head rod 2-22 Intermediate rod 2-23 Tail rod 2-3 First sensor 2-4 Second detection sensor 2-6 Nail injection structure 2-61 Driver 2-62 Motor 2-63 Piston 2-64 Transmission gear set 2-65 cylinder 2-7 Trigger 2-8 Third sensor 2-9 Sensor Block 3-11 First engagement groove 3-12 Second engagement block 3-13 Second engagement groove 3-21 First engaging block 3-22 Engagement structure 3-221 Lever 3-222 Reverse Hook 3-223 Torsion spring 3-23 Protrusion 3-24 Long Block

Claims

1. A nail gun includes a body (1), a magazine (2), and a nail ejection unit (3), the nail ejection unit (3) is provided in the body (1), a driver (31) and a power source (32), the driver (31) is connected to the power source (32), and the magazine (2) is detachably provided on the body (1), and the nail gun further includes a protection unit (4) having an operating member (41), a first spring (42), a trigger switch (43), and a locking device (44), the operating member (41) is slidably provided on the body (1) near the ejection port, and the a first spring (42) further provided between the operating member (41) and the body (1); a trigger switch (43) provided on a sliding path of the operating member (41) and connected to the power source (32); the locking device (44) provided in the magazine (2); an elastic member provided between the locking device (44) and the magazine (2); an anti-blank-strike block (441) provided on the top of the locking device (44); and an engaging portion provided on the operating member (41) that corresponds to the anti-blank-strike block (441).

2. 2. The structure for preventing blank nail strikes in a nail driver according to claim 1, wherein the trigger switch (43) is a contact switch or a photoelectric switch.

3. 2. The structure for preventing blank nail strikes of a nail driver according to claim 1, wherein the operating member (41) comprises a safety rod (411) and an adjuster (412), the safety rod (411) is provided on the body (1), the adjuster (412) is provided near the injection port of the body (1) and is fitted onto the safety rod (411) via a screw structure (413).

4. 4. The structure for preventing blank nail strikes in a nail driver according to claim 3, wherein the adjuster (412) is semicircular, provided outside the injection port of the body (1) of the nail driver, and slides along the outer wall of the injection port.

5. The structure for preventing blank nail driving of a nail driver according to claim 3, wherein the first spring (42) is fitted to the outside of the safety rod (411).

6. 2. The structure for preventing blank nail driving of a nail driver according to claim 1, wherein a pusher (21) for pushing nails into the magazine (2) is provided, an elastic member is provided between the pusher (21) and the magazine (2), and the locking device (44) is fixed to the pusher (21).

7. 7. The structure for preventing blank nail strikes of a nail driver according to claim 6, wherein the elastic member is a coil spring (23) or a second spring.

8. At least one confirmation window (22) is provided on the side of the magazine (2) for checking the amount of nails remaining in the magazine (2).

9. A motor stopping structure for a nail gun, comprising a control chip, a cam (2-1), a connecting rod (2-2), and a first detection sensor (2-3), wherein the cam (2-1) is provided on a rotation axis of a nail gun (2-62), the connecting rod (2-2) is provided between the cam (2-1) and the first detection sensor (2-3), the first detection sensor (2-3) and the control chip are both provided in a body (1) of the nail gun, the first detection sensor (2-3) is connected to the control chip, and an elastic structure is provided between the connecting rod (2-2) and the body (1) of the nail gun to assist in returning the connecting rod (2-2).

10. The motor stopping structure of a nail driver according to claim 9, characterized in that the connecting rod (2-2) comprises a head rod (2-21), an intermediate rod (2-22), and a tail rod (2-23), the intermediate rod (2-22) is disposed between the head rod (2-21) and the tail rod (2-23), and the head rod (2-21), the intermediate rod (2-22), and the tail rod (2-23) are manufactured integrally.

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

12. The motor stopping structure of a nailing machine according to claim 10, wherein the end of the tail rod (2-23) is provided with a cylindrical hole to fit a spring.

13. The motor stopping structure of a nail driver according to claim 10, wherein the tail rod (2-23) is configured in an L-shape, and an end of the tail rod (2-23) away from the intermediate rod (2-22) contacts the first sensor (2-3) and the elastic structure simultaneously.

14. A motor stopping structure for a nail gun, comprising a third detection sensor (2-8) and a detection block (2-9), the third detection sensor (2-8) and the detection block (2-9) being arranged corresponding to each other, and the detection block (2-9) being located on a driver of the nail gun.

15. The motor stopping structure of a nail driver according to claim 14, wherein the third sensor (2-8) is a photoelectric sensor or a Hall sensor.

16. The motor stopping structure of a nail gun according to any one of claims 9 to 15, further comprising a second detection sensor (2-4) for counting the number of times the trigger (2-7) of the nail gun is pulled.

17. A nail gun, comprising the motor stopping structure according to any one of claims 9 to 15, and also comprising a nail ejection structure (2-6) and a body (1), wherein the nail ejection structure (2-6) comprises a driver (2-61), a motor (2-62), a piston (2-63), a transmission gear set (2-64), and a cylinder (2-65), wherein the driver (2-61), the motor (2-62), the piston (2-63), the transmission gear set (2-64), and the cylinder (2-65) are all disposed within the body (1), and the transmission gear set (2-64) is respectively connected to the motor. a cylinder (2-65) provided at an end of the driver (2-61) remote from the motor (2-62), the piston (2-63) connected to the driver (2-61) is provided within the cylinder (2-65), the control chip, cam (2-1), connecting rod (2-2) and first detection sensor (2-3) in the motor stopping structure are each disposed within the body (1), and the cam (2-1) in the motor stopping structure is provided on the rotation shaft of the motor (2-62).

18. The nailing machine according to claim 17, further comprising a trigger (2-7) rotatably mounted within the body (1), a spring is provided between the trigger (2-7) and the body (1), and the second detection sensor (2-4) is disposed corresponding to the trigger (2-7) of the nailing machine.

19. The nail gun has a magazine that can be easily attached and detached, and comprises a body (1) and a magazine (2), the magazine (2) and the body (1) are detachably connected, the magazine (2) is box-shaped as a whole, the interior of the magazine (2) is configured as a hollow space for storing connected nails, the top of the magazine (2) is connected to the body (1), first engagement blocks (3-21) extending outward are provided on both sides of the top of the magazine (2), and the body (1) is provided with first engagement grooves (3-11) corresponding to the first engagement blocks (3-21). a nail gun having an easily attachable and detachable magazine, characterized in that the magazine (2) is also provided with an engagement structure (3-22) on the outer surface thereof, the engagement structure (3-22) having a lever (3-221) rotatably connected to the magazine (2) and a torsion spring (3-223), the torsion spring (3-223) being provided between the lever (3-221) and the magazine (2), and the body (1) is also provided with a second engagement block (3-12) corresponding to the lever (3-221).

20. The nail gun with an easily attachable and detachable magazine described in claim 19, characterized in that the first engagement block (3-21) is stick-shaped, and the first engagement groove (3-11) has an opening that fits the first engagement block (3-21).

21. The nail gun with an easy-to-attach / detach magazine according to claim 20, wherein an end of the first engagement block (3-21) facing the first engagement groove (3-11) is configured as an arcuate surface.

22. The nail gun with an easily attachable and detachable magazine according to claim 20, wherein an opening of the first engagement groove (3-11) faces forward.

23. The nail gun with an easily attachable and detachable magazine described in claim 19 is characterized in that the lever (3-221) has a long plate shape overall, a through hole is provided near the center of the lever (3-221), one end of the lever (3-221) is used to engage with the second engagement block (3-12), and the other end is used for operation.

24. A nail gun with an easily attachable and detachable magazine as described in claim 23, characterized in that the end of the lever (3-221) close to the second engagement block (3-12) is also provided with an inverted hook (3-222) that contacts the upper surface of the second engagement block (3-12).

25. The nail gun with an easily attachable and detachable magazine according to claim 19, characterized in that a protrusion (3-23) cooperating with the torsion spring (3-223) is provided on the outside of the magazine (2), and the engagement structure (3-22) is located between the protrusion (3-23) and the second engagement block (3-12).

26. The nail gun with an easily attachable and detachable magazine according to claim 19, characterized in that the end of the torsion spring (3-223) away from the lever (3-221) is directly connected to a hole structure or a groove structure provided on the outside of the magazine (2).

27. The nail gun with an easily attachable and detachable magazine according to claim 19, characterized in that two raised rectangular long blocks (3-24) are also provided on the top surface of the magazine (2), the two long blocks (3-24) are respectively located on both sides of the nail discharge outlet of the magazine (2), a second engagement groove (3-13) that fits the long blocks (3-24) is provided on the bottom of the body (1), and the long blocks (3-24) are fitted into the second engagement groove (3-13).

28. 20. The nailing machine according to claim 19, wherein a long confirmation window communicating with the internal cavity is also provided on the side of the magazine (2).

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