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 nailing machines, and in particular to a nail blank-firing prevention structure for a nailing machine, a motor stop structure for a nailing machine, a nailing machine, and a nailing machine with a easily attachable and detachable magazine. BACKGROUND ART

[0002] A nailing machine is a finishing tool that drives nails of a specific shape into a target object. According to the type of power, it can be divided into electric nailing machines, pneumatic nailing machines, gas nailing machines, manual nailing machines, etc. Among them, electric nailing machines and pneumatic nailing machines are the two most widely used types. A pneumatic nailing machine mainly obtains high air pressure through an external air pump to supply power to nails in the channel. An electric nailing machine mainly controls the contraction of a driver through a motor, compresses an energy storage member such as a spring or a cylinder that cooperates with the driver, and then releases the driver to strike a nail. Compared with pneumatic nailing machines, electric nailing machines are compact, convenient to carry, and can be equipped with an independent power source, so they are expected to have wide applications.

[0003] A conventional electric nailing machine is, for example, the one disclosed in Patent Document 1. Patent Document 1 discloses a nailing machine that implements a setting operation by providing structures such as a power source and a driver in the nailing machine, and is provided with a photoelectric sensor for detecting the remaining amount of nails to ensure the safety of use of the nailing machine. However, there are still situations where users do not notice that nails are exhausted during use. Therefore, a safe and effective nail blank-firing prevention structure for nailing machines is needed.

[0004] Conventional electric nail guns, such as those shown in Patent Document 1, achieve setting operations by incorporating a power source and driver structure within the nail gun and using a photoelectric sensor to detect the remaining amount of nails. However, Patent Document 1 only concerns preventing dry firing of nails and does not consider the starting and stopping positions of the driver. In conventional electric nail guns, inertia remains even after the power source stops, making it difficult to accurately control the stopping position of the driver connected to the power source. This is disadvantageous for understanding the state of the driver when starting up again, and makes it difficult to accurately determine whether the driver has struck a nail. Therefore, a motor stopping structure and nail gun that are convenient for controlling the position of the driver were needed.

[0005] In conventional electric nail guns, the magazine and the nail gun body are usually connected relatively stably by a screw connection. For example, Patent Document 2 discloses a dry-firing prevention mechanism and a nail gun, and as shown in the attached drawings, the magazine and the nail gun are fixed together by a screw connection. In conventional nail guns, the screw-connected magazine is inconvenient to attach and detach, and additional tools are required to release the screw connection, which is inconvenient when disassembling for repair, storage, or transport. Therefore, there is a need for a nail gun with an easy-to-use magazine attachment and detachment mechanism. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] China Patent Publication No. CN212287494U Publication [Patent Document 2] China Patent Publication No. CN214723920U Publication [Overview of the project] [Problems that the invention aims to solve]

[0007] The objective of the present invention is to overcome the shortcomings of the prior art and provide a nail gun structure that prevents dry nailing. [Means for solving the problem]

[0008] To solve the above problems, the present invention employs the following technical means.

[0009] A nail gun dry-firing prevention structure comprises a body, a magazine, and a nail ejection section, the nail ejection section being located inside the body; a driver and a power source being located inside the body; the driver being connected to the power source; and the magazine being detachably located inside the body. The structure further comprises a protective section having an operating member, a first spring, a trigger switch, and a locking mechanism, the operating member sliding near the ejection port on the body; the first spring further provided between the operating member and the body; the trigger switch provided in the sliding path of the operating member and connected to the power source; the locking mechanism being located inside the magazine; an elastic member provided between the locking mechanism and the magazine; a dry-firing prevention block provided on the top of the locking mechanism; and an engaging portion corresponding to the dry-firing prevention block provided on the operating member.

[0010] Furthermore, the trigger switch is either a contact switch or a photoelectric switch.

[0011] Furthermore, the operating member comprises a safety rod and an adjuster, the safety rod being provided on the body and the adjuster being provided near the nozzle of the body and fitted onto the safety rod via a screw structure.

[0012] Furthermore, the adjuster has a semi-circular disc shape, is provided on the outside of the nozzle of the nail gun body, and slides along the outer wall of the nozzle.

[0013] Furthermore, the first spring is fitted to the outside of the safety rod.

[0014] Furthermore, a pusher for pushing nails is provided inside the magazine, and the locking device is fixed to the pusher.

[0015] Furthermore, the elastic member is either a coil spring or a second spring.

[0016] Furthermore, at least one inspection window is provided on the side of the magazine for checking the remaining amount of nails inside the magazine.

[0017] As an advantageous effect of the present invention, By providing a locking mechanism inside the magazine and cooperating with the operating member and trigger switch, the operating member is locked when the nails in the magazine run out, preventing the power source from continuing to operate when the nails are depleted. This provides physical protection when the nail supply reaches zero, and the structure is simple and the effect is stable. By providing an operating member equipped with a safety rod and an adjuster, and by aligning 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 count confirmation window on the side of the magazine, the remaining number of nails inside the magazine can be easily seen.

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

[0019] To solve the above problems, the present invention employs the following technical means.

[0020] A nail gun with an easily detachable magazine comprises a body and a magazine, the magazine and the body being detachably connected, the magazine having a box-like shape overall, the inside of the magazine being a hollow space for storing connecting nails, the top of the magazine being connected to the body, first engaging blocks extending outward on both sides of the top of the magazine being provided, the body being provided with first engaging grooves corresponding to the first engaging blocks, the openings of the first engaging grooves facing either the front or rear side, an engaging structure also being provided on the outer surface of the magazine, the engaging structure comprising a lever rotatably connected to the magazine and a torsion spring, the torsion spring being provided between the lever and the magazine, and a second engaging block corresponding to the lever being provided on the body.

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

[0022] Further, an end of the first engagement block facing the first engagement groove is configured as an arc surface.

[0023] Further, an opening of the first engagement groove faces forward.

[0024] Further, the lever has an overall elongated plate shape, a through hole is provided near the center of the lever, one end of the lever is used for engaging with the second engagement block, and the other end is used for operation.

[0025] Further, a reverse hook that contacts the upper surface of the second engagement block is also provided at an end of the lever close to the second engagement block.

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

[0027] Further, an end of the torsion spring away from the lever is directly connected to a hole structure or a groove structure provided on the outer side of the magazine.

[0028] Further, two raised elongated square blocks are also provided on the upper surface of the magazine, the two elongated blocks are respectively located on both sides of a nail discharge opening of the magazine, a second engagement groove adapted to the elongated blocks is provided at the bottom of the body, and the elongated blocks are fitted into the second engagement groove.

[0029] Further, an elongated check window communicating with an internal cavity is also provided on a side surface of the magazine.

[0030] As advantageous effects of the present invention, By providing the engagement structure and the first engagement block on the magazine respectively, and cooperating with the second engagement block and the first engagement groove on the body, detachable coupling of the magazine and the body is achieved, 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 within the engagement structure that is close to the second engagement block, the situation in which the lever separates from the second engagement block due to the downward movement of the magazine is prevented. By providing a long block on the top surface of the magazine that cooperates with the second engagement groove on the body, further engagement between the magazine and the body is achieved, preventing the magazine from rattling.

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

[0032] To solve the above problems, the present invention employs the following technical means.

[0033] The motor stopping structure for a nail gun comprises a control chip, a cam, a connecting rod, and a first sensing sensor. The cam is provided on the rotating shaft of the motor inside the nail gun, the connecting rod is provided between the cam and the first sensing sensor, both the first sensing sensor and the control chip are provided inside the body of the nail gun, the first sensing sensor is connected to the control chip, and an elastic structure is provided between the connecting rod and the body of the nail gun to assist in the return of the connecting rod.

[0034] Furthermore, the connecting rod comprises a head rod, an intermediate rod, and a tail rod, with the intermediate rod positioned between the head rod and the tail rod, and the head rod, intermediate rod, and tail rod being manufactured as a single unit.

[0035] Furthermore, the head rod has a triangular plate shape overall, and the head rod and the cam lie on the same plane.

[0036] Furthermore, a cylindrical hole is provided at the end of the tail rod to accommodate the spring.

[0037] Furthermore, the tail rod is configured in an L-shape, with the end of the tail rod that is away from the intermediate rod making contact with the first sensing sensor and the elastic structure simultaneously.

[0038] A motor stopping structure for a nail gun, comprising a third sensing sensor and a sensing block, wherein the third sensing sensor and the sensing block are arranged in correspondence, and the sensing block is located on the driver of the nail gun.

[0039] Furthermore, the third sensing sensor is a photoelectric sensor or a Hall sensor.

[0040] It also features a second sensing sensor to count the number of times the trigger of the nail gun has been pulled.

[0041] It is a nail gun, The motor stopping structure It is equipped with a nail ejection structure and a body, the nail ejection structure comprises a driver, a motor, a piston, a transmission gear set, and a cylinder, the driver, motor, piston, transmission gear set, and cylinder are all located inside the body, the transmission gear set is connected to the motor and driver respectively, a cylinder is provided at the end of the driver away from the motor, and a piston connected to the driver is provided inside the cylinder. Motor stopping structure The internal control chip, cam, connecting rod, and first sensing sensor are each located within the body. Motor stopping structure The internal cam is mounted on the motor's rotating shaft.

[0042] Furthermore, it is equipped with a trigger that is rotatably mounted inside the body, with a spring provided between the trigger and the body, and a second sensing sensor positioned in accordance with the trigger of the nail gun.

[0043] As an advantageous effect of the present invention, By providing a motor stop structure that includes the cam and connecting rod of the nail gun, it is possible to sense the rotation angle of the motor, determine the position of the driver inside the nail gun, and control the driver to stop at a predetermined position. By making the head rod of the connecting rod a triangular plate shape, and having the head rod and cam on the same plane, on the one hand, the head rod is kept in as much contact with the cam as possible, and on the other hand, the load capacity of the head rod is also strengthened, so that the head rod is not easily damaged during the rapid reciprocating motion that follows the cam. By installing a second sensing sensor, it is possible to detect the trigger pull status, determine whether the motor needs to be stopped, and, by comparing this with the first sensing sensor, count the motor rotation speed and the number of trigger pulls, thereby checking for nail jams and other issues in the nail gun. By providing a third sensing sensor to detect the position of the sensing block, the driver's stopping position is controlled, ensuring that the driver is in a predetermined position when the nail gun is started and stopped. [Brief explanation of the drawing]

[0044] [Figure 1] This is an overall configuration diagram of the nail gun according to Example 1. [Figure 2] This is a schematic diagram showing the inside of the body of the nail gun according to Example 1. [Figure 3] This is a magnified view of part A in Figure 2. [Figure 4] This is a schematic diagram showing the magazine and partial protection unit according to Example 1. [Figure 5] This is an overall configuration diagram of Example 2. [Figure 6] This is a schematic diagram showing the internal structure of the body according to Example 2. [Figure 7] This is a schematic diagram showing the motor stopping structure and partial nail injection structure according to Example 2. [Figure 8] This is a schematic diagram showing the counting device and nail ejection structure of Example 2. [Figure 9] This is a schematic diagram showing the motor stopping structure and motor according to Example 2. [Figure 10] This is a schematic diagram showing the motor stopping structure inside the nail gun according to Example 3. [Figure 11] This is an overall configuration diagram of the nail gun according to Example 4. [Figure 12] This is a front view of the nail gun according to Example 4. [Figure 13] This is a schematic diagram showing how the partial body and magazine are connected according to Example 4. [Figure 14] This is a schematic diagram of the magazine according to Example 4. [Figure 15]This is a schematic diagram of the body portion that fits with the magazine of Example 4. [Modes for carrying out the invention]

[0045] Embodiments of the present invention will be described below through specific examples. Those skilled in the art will readily understand other advantages and effects of the present invention from the disclosure herein. The present invention may also be carried out or applied through other different specific embodiments, and the details herein may be embellished or modified in various ways based on different viewpoints and applications without departing from the spirit of the invention. It should be noted that the following embodiments and features thereof can be combined with each other as long as they do not conflict.

[0046] The illustrations provided in the following embodiments are merely schematic representations of the basic concept of the present invention, and only components relevant to the present invention are shown in the figures. They are not depicted according to the number, shape, and dimensions of the elements in actual implementation. In actual implementation, the form, quantity, and proportion of each element can be arbitrarily changed, and the arrangement of the elements may become more complex.

[0047] (Example 1) As shown in Figures 1-4, the nail gun has a structure to prevent dry firing of nails, comprising a body 1, a magazine 2, and a nail ejection unit 3. The nail ejection unit 3 is located inside the body 1 and comprises a driver 31 and a power source. The driver 31 is connected to and driven by the power source 32, and the magazine 2 is detachably mounted on the body 1. The structure further comprises a protective unit 4 comprising an operating member 41, a first spring 42, a trigger switch 43, and a locking device 44. The operating member 41 slides near the ejection port on the body 1. The ejection port of the body 1 is the opening through which the nail gun ejects nails. Note that in this embodiment, the sliding direction of the operating member 41 coincides with the nail ejection direction of the ejection port. A first spring 42 is further provided between the operating member 41 and the body 1, and in this embodiment, the first spring 42 is fitted to the outside of the operating member 41. The trigger switch 43 is located in the sliding path of the operating member 41, and can contact the trigger switch 43 when the operating member 41 slides within the body 1. The trigger switch 43 is connected to a power source, and a locking device 44 is located inside the magazine 2. An elastic member is provided between the locking device 44 and the magazine 2, and the elastic member provides 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 dry-firing prevention block 441 is provided protruding from the top of the locking device 44, and an engaging portion corresponding to the dry-firing prevention block 441 is provided on the operating member 41. When the magazine 2 is empty of nails, the dry-firing prevention block 441 on the top of the locking device 44 contacts the engaging portion on the operating member 41, locking the operating member 41 and making it difficult for it to move toward the trigger switch 43, thereby preventing the power source 32 from starting and thus preventing dry-firing of nails.

[0048] The trigger switch 43 is a contact switch or a photoelectric switch, and in this embodiment it is a contact switch. Note that when the trigger switch 43 is not triggered, the power source 32 cannot be started, and the lock on the rotary power source 32 is released and the rotary power source 32 can be operated in response to a control command only by pressing the operating member 41 and turning on the trigger switch 43.

[0049] The operating member 41 comprises a safety rod 411 and an adjuster 412. The safety rod 411 is movably mounted on the body 1, and the adjuster 412 is mounted near the nozzle of the body 1 and fitted onto the safety rod 411 via a screw structure 413. The screw structure 413 allows adjustment of the length of the adjuster 412 protruding from the nozzle, thereby adjusting the nail driving depth of the nail gun. The length range of the adjuster 412 protruding from the nozzle is a set value. In this embodiment, the adjuster 412 is semi-circular in shape, mounted on the outside of the nozzle of the nail gun body 1, and slides along the outer wall of the nozzle. Note that the movable installation of the safety rod 411 on the body 1 is specifically a sliding installation, the sliding length range is a set value, and when the safety rod 411 slides, the trigger switch 43 is triggered. In this embodiment, the first spring 42 is fitted to the outside of the safety rod 411, and the first spring 42 Both The ends abut against annular pieces provided on the body 1 and the safety rod 411, respectively.

[0050] A pusher 21 for pushing nails is provided inside the magazine 2, and an elastic member is provided between the pusher 21 and the magazine 2. The elastic member is a second spring or a coil spring 23. In this embodiment, the elastic member is a coil spring 23, the coil spring 23 is on the pusher 21, and the end of the coil spring 23 locks onto the top of the magazine 2. In this embodiment, the 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 positioned in correspondence with the adjuster 412. In this embodiment, when the pusher 21 moves to the top of the magazine 2, that is, when there are no nails in the magazine 2, the dry-fire prevention block 441 on the locking device 44 is in close contact with the outer surface of the nozzle of the body 1. The dry-fire prevention block 441 on the locking device 44 is on the movement trajectory of the adjuster 412 in the operating member 41, locking the adjuster 412 and preventing it from moving to the trigger switch 43. Note that the protrusion height of the dry-fire prevention block 441 relative to the locking device 44 is adjustable. In this embodiment, the dry-fire prevention block 441 and the locking device 44 are fastened together with screws.

[0051] In some other embodiments, the engagement block cooperating with the anti-dry firing block 441 on the locking device 44 may also be located on the safety rod 411, and it should be noted that the end of the safety rod 411 away from the trigger switch 43 is provided with an engagement block extending toward the side of the safety rod 411. When there are no nails in the magazine 2, the locking device 44 is in the path of the engagement block and contacts the engagement block, preventing the engagement block from moving toward the trigger switch 43 and thus preventing nails from being fired.

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

[0053] During the operation, a locking device 44 is provided inside the magazine 2, and in cooperation with the operating member 41 and the trigger switch 43, the operating member 41 is locked when the nails in the magazine 2 run out, preventing the power source from continuing to operate when the nails run out, thus providing physical protection when the nail supply reaches zero, the structure is simple and the effect is stable, the operating member 41 is equipped with a safety rod 411 and an adjuster 412, and the screw structure 413 between the safety rod 411 and the adjuster 412 allows for adjustment of the nail driving depth of the nail gun, and the nail supply confirmation window is provided on the side of the magazine 2 so that the amount of nails remaining in the magazine 2 can be easily seen.

[0054] (Example 2) As shown in Figures 6-9, the motor stop structure for a nail gun comprises a control chip, a cam 2-1, a connecting rod 2-2, and a first sensing sensor 2-3. The cam 2-1 is mounted on the rotation axis of the motor 2-62 inside the nail gun, the connecting rod 2-2 is mounted between the cam 2-1 and the first sensing sensor 2-3, and both the first sensing sensor 2-3 and the control chip are mounted inside the body 1 of the nail gun. The first sensing sensor 2-3 is connected to the control chip, and an elastic structure is also provided between the connecting rod 2-2 and the nail gun body 1. The elastic structure applies a force to the connecting rod 2-2 toward the cam 2-1, facilitating the return of the connecting rod 2-2. During the operation, the rotation axis of the motor 2-62 rotates, rotating the cam 2-1. After the cam 2-1 rotates, it pushes the connecting rod 2-2, and in cooperation with the elastic structure, reciprocating motion of the connecting rod 2-2 is achieved, repeatedly triggering the first sensing sensor 2-3. After motor 2-62 stops, due to inertia, the rotation axis of motor 2-62 continues to rotate, and sensing sensor 2-3 works in cooperation with cam 2-1 to sense the attitude of motor 2-62 and control the rotation axis of the motor to stop at a predetermined angle, and the driver 31 It is possible to control the motor to stop at a predetermined position. Since the sensing sensor works in cooperation with the cam to sense the rotation angle of the motor's rotation axis, and the control of stopping the rotation of the motor 2-62's rotation axis also employs conventional technology, it should be noted that the first sensing sensor 2-3 works in cooperation with the cam 2-1 provided on the rotation axis of the motor 2-62 to control the motor to stop at a predetermined rotation angle. For example, if the motor 2-62 rotates 5 times, the driver... 31 Once the motor has completed one reciprocating motion, if the first sensing sensor 2-3 detects that the motor has rotated five times, it controls the motor 2-62 to stop, and the driver 31 It returns to its original position.

[0055] The aforementioned 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 positioned between the head rod 2-21 and the tail rod 2-23. In this embodiment, the head rod 2-21, the intermediate rod 2-22, and the tail rod 2-23 are manufactured as a single unit. The head rod 2-21 has a triangular plate shape overall, and the head rod 2-21 and the cam 2-1 are on the same plane, maintaining the head rod 2-21 in as much contact as possible with the cam 2-1. The tail rod 2-23 is partially L-shaped so that the end of the tail rod 2-23 away from the intermediate rod 2-22 contacts the first sensing sensor 2-3 and the elastic structure simultaneously. In this embodiment, the elastic structure is a spring, and cylindrical holes are provided at both ends of the tail rod 2-23 to accommodate the spring.

[0056] The motor stop structure further includes a second sensing sensor 2-4, which is provided in correspondence with the trigger 2-7 of the nail gun. The second sensing sensor 2-4 senses the state in which the trigger 2-7 is pulled, senses the motor 2-62, and is used to determine whether it is necessary to stop the motor. For example, when the trigger 2-7 is released, it works in cooperation with the first sensing sensor 2-3 to control the motor 2-62 to stop at a predetermined angle. The second sensing sensor 2-4 is also connected to a control chip within the motor stop structure. The trigger 2-7 in the nail gun is rotatably mounted within the body 1, and the trigger 2-7 and the body 1 A spring is provided between them.

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

[0058] A nail gun, equipped with the above-mentioned motor stopping structure, and also comprising a nail ejection structure 2-6 and a body 1, wherein the nail ejection structure 2-6 is a driver 31 It also includes a motor 2-62, a piston 2-63, a transmission gear set 2-64, and a cylinder 2-65, and a driver 31 The motor 2-62, piston 2-63, transmission gear set 2-64, and cylinder 2-65 are all located within body 1, and the transmission gear set 2-64 is connected to the motor 2-62 and the driver, respectively.31 It is connected to motor 2-62 and driver 31 To enable power transmission coupling. 31 A cylinder 2-65 is provided at the end away from the motor 2-62, and a driver is located inside the cylinder 2-65. 31 A piston 2-63 is provided which is connected to it. Motor stopping structure The internal control chip, cam 2-1, connecting rod 2-2, and first sensing sensor 2-3 are each located within the body 1, and the cam 2-1 within the motor stop structure is mounted on the rotation axis of the motor 2-62.

[0059] During implementation, by providing a motor stop mechanism that includes the cam 2-1 and connecting rod 2-2 of the nail gun, the rotation angle of the motor 2-62 is sensed, and the driver inside the nail gun 31 Determine the driver's location. 31 The motor is controlled to stop at a predetermined position. The head rod 2-21 of the connecting rod 2-2 is shaped like a triangular plate, and the head rod 2-21 and the cam 2-1 are on the same plane. This maintains the head rod 2-21 in as much contact as possible with the cam 2-1, while also strengthening the load capacity of the head rod 2-21 and preventing it from being easily damaged during the rapid reciprocating motion following the cam 2-1. A second sensing sensor 2-4 is provided to sense the state of the trigger 2-7 and determine whether it is necessary to stop the motor 2-62. The first sensing sensor 2-3 and the second sensing sensor 2-4 each count the rotation speed of the motor 2-62 and the number of times the trigger 2-7 is pulled, respectively. By comparing the two, it is possible to determine whether there is a jammed nail or other problem. If a nail is jammed, the motor 2-62 will stop. At this time, the number of triggers for the first sensing sensor 2-3 will not change, while the number of triggers for the second sensing sensor 2-4 will increase with each pull of the trigger 2-7, indicating that a jammed nail or other problem has occurred.

[0060] (Example 3) As shown in Figure 10, this embodiment is an improvement on Embodiment 2 and is a motor stop structure for a nail gun, comprising a third sensing sensor 2-8, a sensing block 2-9, and a second sensing sensor 2-4. The installation position and method of the second sensing sensor 2-4 are the same as in Embodiment 2, the third sensing sensor 2-8 is positioned corresponding to the sensing block 2-9, and the sensing block 2-9 is located on the driver of the nail gun. The third sensing sensor 2-8 is a photoelectric sensor or a Hall sensor, and in this embodiment, it is a photoelectric sensor.

[0061] During the operation, a third sensing sensor 2-8 is provided to sense the position of the sensing block 2-9, thereby controlling the driver's stopping position and ensuring that the driver is in a predetermined position when the nail gun is started and stopped.

[0062] (Example 4) As shown in Figures 11-15, this nail gun features an easily detachable magazine and comprises a body 1 and a magazine 2. The magazine 2 and body 1 are detachably connected, and the magazine 2 as a whole has a box shape. The inside of the magazine 2 is a hollow section for storing connecting nails. The top of the magazine 2 is connected to the body 1, and outward-extending first engagement blocks 3-21 are provided 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 fitting into the first engagement blocks 3-21 on both sides of the magazine 2. The opening of the first engagement grooves 3-11 faces either the front or the rear. In this embodiment, the opening of the first engagement grooves 3-11 faces forward. Note that the front side is the direction in which the nail gun ejects nails, and the rear side is the opposite direction to the direction in which the nail gun ejects nails. An engagement structure 3-22 is also provided on the outer surface of the magazine 2. The engagement structure 3-22 comprises 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 the body 1 is also provided with a second engagement block 3-12 corresponding to the lever 3-221. In this embodiment, the torsion spring 3-223 applies a force to the lever 3-221 toward the second engagement block 3-12, causing the lever 3-221 to remain engaged with the second engagement block 3-12 when it is not subjected to external force.

[0063] The first engagement block 3-21 is stick-shaped, and the first engagement groove 3-11 is provided with 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, engagement between the first engagement block 3-21 and the first engagement groove 3-11 can be achieved. In this embodiment, the ends of the first engagement block 3-21 facing the first engagement groove 3-11 are configured as arcuate surfaces, 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 is generally long and plate-shaped, with a through hole near its center, through which a rotatable connection to the magazine 2 is achieved. One end of the lever 3-221 is used for engagement with the second engagement block 3-12, and the other end is used for easy operation of the lever 3-221. The end of the lever 3-221 closest to the second engagement block 3-12 is also provided with a reverse hook 3-222 that contacts the upper surface of the second engagement block 3-12, preventing the lever 3-221 from separating from the second engagement block 3-12 due to the downward movement of the magazine 2.

[0065] When the magazine 2 and the nail gun-like body 1 are connected, the lever 3-221, second engagement block 3-12, first engagement groove 3-11, and first engagement block 3-21 are arranged in order from the rear to the front within the engagement structure 3-22. The lever 3-221, through the action of the torsion spring 3-223, applies a forward force to the second engagement block 3-12, 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 projection 3-23 is provided on the outside of the magazine 2, which cooperates with the torsion spring 3-223. Note that when the magazine 2 and the body 1 are connected, the engagement structure 3-22 is located between the projection 3-23 and the second engagement block 3-12, so that the torsion spring 3-223 can push the lever 3-221 and move to 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 structure or groove structure provided on the outside of the magazine 2.

[0067] A raised rectangular elongated block 3-24 is also provided on the upper surface of the magazine 2. In this embodiment, two elongated blocks 3-24 are provided, each located on either side of the nail discharge port of the magazine 2. A second engagement groove 3-13 that fits the elongated block 3-24 is provided at the bottom of the body 1. By fitting the elongated block 3-24 into the second engagement groove 3-13, rattling of the magazine 2 can be prevented.

[0068] A long, rectangular inspection window is also provided on the side of the magazine 2, which communicates with the internal cavity, allowing for easy visual confirmation of the remaining amount of nails inside the magazine 2.

[0069] During the manufacturing process, the magazine 2 is provided with an engagement structure 3-22 and a first engagement block 3-21, respectively. By cooperating with the second engagement block 3-12 and the first engagement groove of the body 1, a removable connection between the magazine 2 and the body 1 is achieved. By rotating the lever 3-221 in the engagement structure 3-22, the magazine 2 and the body 1 can be easily separated. By providing a reverse hook on the end of the lever 3-221 in the engagement structure 3-22 that is close to the second engagement block 3-12, the situation in which the lever 3-221 separates from the second engagement block 3-12 due to the downward movement of the magazine 2 is prevented. By providing a long block 3-24 on the upper surface of the magazine 2 that cooperates with the second engagement groove of the body 1, further engagement between the magazine 2 and the body 1 is achieved, preventing rattling of the magazine 2.

[0070] The above description is merely a specific example of the present invention and does not limit it. It will be apparent to those skilled in the art that, with an understanding of the content and principles of the present invention, various modifications and changes can be made to its form and details 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 springs 3 Nail injection part 31 Drivers 32 Power source 4 Protective part 41 Operating member 411 Safety Rod 412 adjuster 413 Screw structure 42 First spring 43 Trigger Switch 44 Locking device 441 Anti-dry firing block 2-1 Cam 2-2 Connection 2-21 Head Rod 2-22 Intermediate rod 2-23 Tail Rod 2-3 First sensing sensor 2-4 Second sensing sensor 2-6 Nail injection structure Construction 2-62 Motor 2-63 Piston 2-64 Transmission Gear Set 2-65 Cylinder 2-7 Trigger 2-8 Third sensing sensor 2-9 Sensing Block 3-11 First engagement groove 3-12 Second Engagement Block 3-13 Second engagement groove 3-21 First Engagement Block 3-22 Engagement structure 3-221 Lever 3-222 Reverse Hook 3-223 Torsion spring 3-23 Protrusion 3-24 Long Blocks

Claims

1. A nail gun nail dry-firing prevention structure comprising a body (1), a magazine (2), and a nail ejection unit (3), wherein the nail ejection unit (3) is provided inside the body (1), and a driver (31) and a power source (32), wherein the driver (31) is connected to the power source (32), and the magazine (2) is detachably provided in the body (1), The protective part (4) further comprises an operating member (41), a first spring (42), a trigger switch (43), and a locking device (44), The operating member (41) is slidably mounted near the nozzle on the body (1), the first spring (42) is further provided between the operating member (41) and the body (1), the trigger switch (43) is provided in the sliding path of the operating member (41) and is connected to the power source (32), A pusher (21) for pushing nails is provided inside the magazine (2), an elastic member is provided between the pusher (21) and the magazine (2), and the locking device (44) is fixed to the pusher (21). A dry-firing prevention block (441) is provided protruding from the top of the locking device (44), and an engagement portion corresponding to the dry-firing prevention block (441) is provided on the operating member (41). The operating member (41) comprises a safety rod (411) and an adjuster (412), the safety rod (411) being movably mounted on the body (1), the adjuster (412) being mounted near the nozzle of the body (1) and fitted onto the safety rod (411) via a screw structure (413), The adjuster (412) is semi-circular in shape, is provided on the outside of the nozzle portion of the body (1), slides along the outer wall of the nozzle, and the first spring (42) is fitted on the outside of the safety rod (411). The dry-firing prevention block (441) has an adjustable protrusion height relative to the locking device (44), and is fastened to the locking device (44) with screws. When there are no nails in the magazine (2), the dry-fire prevention block (441) is in close contact with the outer surface of the nozzle of the body (1) and is positioned on the movement trajectory of the adjuster (412), locking the adjuster (412) and preventing the operating member (41) from moving toward the trigger switch (43). A nail gun with a nail dry-firing prevention structure.

2. The screw structure (413) allows for adjustment of the length of the adjuster (412) protruding from the nozzle, thereby allowing adjustment of the nail gun's driving depth. The nail gun nail dry-firing prevention structure according to claim 1, characterized in that both ends of the first spring (42) abut against annular pieces provided on the body (1) and the safety rod (411), respectively.

3. The elastic member is a coil spring (23) or a second spring. At least one inspection window (22) is provided on the side of the magazine (2) for checking the remaining amount of nails in the magazine (2). The trigger switch (43) is a contact switch or a photoelectric switch. A nail gun dry-firing prevention structure according to claim 1 or 2, characterized in that

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