Novel lithium battery steel nail gun

Abstract

The utility model relates to a novel lithium electricity steel nail gun, including the gun body, lid and piston subassembly, the gun body front end is provided with the gun rest, the movable setting of drive support and gun barrel has been set up on the gun rest, be provided with reset spring between drive support and gun rest, the gun rest still detachable setting has the steel nail box, the lid sets up in the gun body rear end, and forms the piston cavity and the gas storage chamber, is provided with openable air door between the piston cavity and the gas storage chamber. Compared with prior art, through setting openable air door between the piston cavity and the gas storage chamber, can form the block between the piston cavity and the gas storage chamber, do not need to drive the operation when usually, high pressure gas is stored in the gas storage chamber, open air door to complete driving operation when driving operation, the air door is in the closed state again under the high pressure gas effect in the gas storage chamber after driving, reduce high pressure gas leakage risk from piston subassembly and piston cavity cooperation position, make lithium electricity steel nail gun gas storage chamber's high pressure gas can long -term storage, improve steel nail gun use efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of power tools, and specifically relates to a novel lithium-ion steel nail gun. Background Technology

[0002] Steel nail guns are a commonly used power tool in construction, decoration, and renovation processes, as illustrated in patent application number 201811468946.5, entitled "A Portable Electric Steel Nail Gun." As shown in the accompanying drawings, the following problems exist: 1. The cylinder and the piston chamber of the piston assembly are connected. During long-term use, the piston assembly seal is prone to aging, or the piston position may deviate during motor-driven piston assembly movement. This causes high-pressure gas stored in the cylinder to leak from the piston position, reducing the density of the high-pressure gas and resulting in insufficient force when nailing, making nailing impossible or significantly reducing nailing efficiency. Therefore, it is necessary to frequently replenish the high-pressure gas in the cylinder. 2. It has a striking structure with a row of drive teeth. A one-way transmission device is connected to the drive teeth to drive the piston assembly to reciprocate within the cylinder. Furthermore, the striking structure and the drive teeth are an integrated structure. Therefore, to ensure… For the driving effectiveness to be effective, the striking structure needs to have high machining precision. However, when the unidirectional transmission device drives the striking structure to move, the driving gear assembly is easily affected by the driving force, causing the striking structure to tilt to one side. This affects the sealing of the piston assembly and also the accuracy of nail driving. 3. The tubular structure of the nail gun head has a safety device on the outside, but the safety device is poorly designed. Furthermore, there is no safety detection mechanism for the nail magazine and the nails inside. The nail gun can be fired even when the safety device is fully compressed, and it can also fire even when there is no nail magazine or no nails inside. Therefore, during use, it is easy to fire without a nail magazine or nails, wasting lithium battery resources and posing a safety hazard. Utility Model Content

[0003] This invention provides a novel lithium-ion battery-powered steel nail gun to address the technical problems existing in this field.

[0004] This utility model provides a novel lithium-ion battery-powered nail gun to solve the aforementioned technical problems. The gun includes a gun body, a cover, and a piston assembly. A gun frame is located at the front end of the gun body, and a drive bracket and a gun barrel are movably mounted on the gun frame. A return spring is provided between the drive bracket and the gun frame. A nail magazine is detachably mounted on the gun frame. The cover is located at the rear end of the gun body and forms a piston chamber and a gas storage chamber. An openable damper is provided between the piston chamber and the gas storage chamber. The piston chamber houses the piston assembly, and the gas storage chamber stores high-pressure gas. When nailing is required, the damper is opened, allowing the high-pressure gas in the gas storage chamber to drive the piston assembly in the piston chamber at high speed to complete the nailing operation.

[0005] Furthermore, one end of the damper is pivotally connected to the gun body via a pivot shaft, and the other end of the damper is provided with a push rod. One end of the push rod is connected to the damper drive, and the other end of the push rod extends out of the gun body through a mounting hole provided on the gun body, so as to facilitate pushing the damper open from the outside of the gun body.

[0006] Furthermore, a sealing gasket is provided at the position where the air damper mates with the gun body; a sealing element is provided between the push rod and the mounting hole of the gun body.

[0007] Furthermore, a cylindrical insert is provided inside the piston chamber. The cylindrical insert is injection molded from polyoxymethylene material or precision machined from metal tubing, which facilitates the sealing performance between the cylindrical insert and the piston assembly; an air injection port is provided on the cover.

[0008] Furthermore, the piston assembly includes a piston body, on which a striking rod and a driving rod are disposed. The striking rod and the driving rod are separate structures, respectively disposed on the piston body. The striking rod is disposed on the central axis of the piston body, and a plurality of driving shafts are evenly disposed on the driving rod.

[0009] Furthermore, the drive shaft includes a central shaft and a bushing, with the bushing mounted on the drive rod via the central shaft.

[0010] Furthermore, the piston body is provided with three layers of sealing rings along the axial direction, wherein the middle layer sealing ring has an X-shaped cross-section.

[0011] Furthermore, the striking rod is mounted on the piston body via a threaded connection, and the drive rod base is sleeved on the piston body at the position where the striking rod is mounted. The drive rod base and the striking rod base are connected by a pin, and a buffer pad is provided between the drive rod and the piston body.

[0012] Furthermore, the piston assembly is also provided with a driving device, which includes a driving gear assembly, a one-way transmission gearbox, and a driving motor. The driving motor is drivenly connected to the one-way transmission gearbox, the one-way transmission gearbox is drivenly connected to the driving gear assembly, and the driving gear assembly is drivenly connected to a plurality of driving shafts evenly arranged on the driving rod.

[0013] Furthermore, the drive gear assembly is provided with an irregularly shaped gear, which includes a gear segment and a toothless segment. The gear segment is provided with a first small tooth, several intermediate drive teeth and a final large tooth. A first induction magnet is provided on the irregularly shaped gear, and a first Hall sensor is fixedly provided on the cover of the irregularly shaped gear. The first Hall sensor is electrically connected to the control device of the lithium-ion steel nail gun.

[0014] Furthermore, the drive gear assembly and the irregular gear adopt a multi-drive head drive method, and a buffer block is provided at each drive connection position.

[0015] Furthermore, the gun mount is also equipped with a second Hall sensor, and the drive bracket is equipped with a corresponding second inductive magnet. The second Hall sensor transmits sensor signals to the control device of the lithium-ion nail gun. A nail magazine detection mechanism is pivotally connected to the nail magazine mounting position on the gun mount. A torsion spring is provided between the nail magazine detection mechanism and the gun mount. The nail magazine detection mechanism is also equipped with a first drive head and a first limit head. When the nail magazine is not installed, the first limit head of the nail magazine detection mechanism hooks onto the drive bracket under the action of the torsion spring, and the drive bracket is in an inoperable compressed state. When the nail magazine is installed on the gun mount, the nail magazine detection mechanism is driven to rotate by the first drive head, causing the first limit head to disengage from the drive bracket, and the drive bracket is in an operable compressed state.

[0016] Furthermore, a nail detection mechanism is pivotally connected to the nail magazine on the gun mount. A torsion spring is installed between the nail detection mechanism and the gun mount. The nail detection mechanism is equipped with a second drive head and a second limiting head. When there are nails in the nail magazine, the nail pusher on the nail magazine moves away from the second drive head of the nail detection mechanism, and the second limiting head moves away from the drive bracket, so the drive bracket is in a drivable compression state. When there are no nails in the nail magazine, the nail pusher on the nail magazine drives the nail detection mechanism to rotate through the second drive head, causing the second limiting head to abut against the drive bracket, so the drive bracket is in an intangible compression state.

[0017] Furthermore, the drive bracket is also equipped with a nailing depth limiting device. The nailing depth limiting device is mounted on the drive bracket and can be moved left and right. The nailing depth limiting device is provided with a first depth limiting part and a second depth limiting part. The different heights of the first depth limiting part and the second depth limiting part correspond to different nailing depths.

[0018] Furthermore, the drive bracket is also equipped with a drive rod, which is used to drive the damper to open.

[0019] This utility model relates to a novel lithium-ion nail gun, comprising a gun body, a cover, and a piston assembly. A gun frame is located at the front end of the gun body, on which a drive bracket and a gun barrel are movably mounted. A return spring is provided between the drive bracket and the gun frame. A nail magazine is detachably mounted on the gun frame. The cover is located at the rear end of the gun body, forming a piston chamber and a gas storage chamber. An openable damper is provided between the piston chamber and the gas storage chamber. Compared with existing technologies, by providing an openable damper between the piston chamber and the gas storage chamber, an obstruction is formed between them. When nailing is not required, high-pressure gas is stored in the gas storage chamber. During nailing operations, the damper is opened to complete the nailing operation. After nailing is completed, the damper closes again under the action of the high-pressure gas in the gas storage chamber, reducing the risk of high-pressure gas leakage from the piston assembly and piston chamber mating point. This allows for long-term storage of high-pressure gas in the gas storage chamber of the lithium-ion nail gun, improving the efficiency of the nail gun. Attached Figure Description

[0020] Figure 1 and Figure 2 This is a three-dimensional structural diagram of the novel lithium-ion battery-powered steel nail gun of this utility model; Figure 3 This is a schematic diagram of the exploded structure of the gun body and cover of a new type of lithium-ion steel nail gun. Figure 4 for Figure 1 Schematic diagram of the AA section structure; Figure 5 This is a schematic diagram showing the structural relationship between the cylinder assembly and the drive unit. Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure of the middle BB; Figure 7 A schematic diagram of the piston assembly in the impact state. Figure 8 for Figure 6 Enlarged structural diagram of the middle D section. Detailed Implementation

[0021] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." The following descriptions are preferred embodiments of the present invention; however, these descriptions are intended to illustrate the general principles of the invention and are not intended to limit its scope. The scope of protection of this invention is determined by the appended claims.

[0022] The present invention will be further described in detail below with reference to the accompanying drawings. The directional terms such as "upper", "lower", "left", "right", "inner" and "outer" described in the specification are only for better understanding and explanation, and are not intended to limit the present invention.

[0023] like Figure 1-2 As shown, a novel lithium-ion battery-powered nail gun includes a gun body 1, a cover 2, and a piston assembly 3. A gun frame 4 is located at the front end of the gun body 1. A drive bracket 5 and a barrel 6 are movably mounted on the gun frame 4. A return spring 5b is located between the drive bracket 5 and the gun frame 4. A nail magazine 7 is detachably mounted on the gun frame 4. This novel lithium-ion battery-powered nail gun requires a corresponding lithium battery and control device, which can be designed using conventional technology and is not shown in the attached diagram. The cover 2 is located at the rear end of the gun body 1 and forms a piston chamber 1a and a gas storage chamber 1b. An openable damper 1c is located between the piston chamber 1a and the gas storage chamber 1b. The piston chamber 1a houses the piston assembly 3, and the gas storage chamber 1b stores high-pressure gas. When nailing is required, the damper 1c is opened, allowing the high-pressure gas in the gas storage chamber 1b to drive the piston assembly 3 in the piston chamber 1a at high speed to complete the nailing operation.

[0024] When nailing is required, the barrel 6 is aligned with the desired nailing position and pressed down. The barrel 6 pushes the drive bracket 5 to overcome the resistance of the return spring 5b and move towards one end of the gun body 1 where the cover 2 is located. At this time, the drive rod 5a on the drive bracket 5 drives the push rod 1d to move, causing the air damper 1c to open, connecting the gas storage chamber 1b with the piston chamber 1a. When the trigger is pulled, the one-way transmission device on the piston assembly 3 continues to rotate, releasing the piston assembly 3. The high-pressure gas stored in the gas storage chamber 1b further drives the piston assembly 3 to move at high speed, delivering the steel nail cartridge 7 to the position of the barrel 6 and driving the steel nail into the workpiece to be nailed. At the same time, a buffer 1f is also set in the gas storage chamber 1b for buffering and shock absorption. Upon completion of nailing, the barrel 6 is released, and the drive bracket 5 and the barrel 6 return to their original positions under the action of the return spring 5b. At this time, the air damper 1c also closes under the action of the high-pressure gas in the gas storage chamber 1b, awaiting the next round of nailing operations. Therefore, by setting an openable damper 1c between the piston chamber 1a and the gas storage chamber 1b, an obstruction can be formed between the piston chamber 1a and the gas storage chamber 1b. When nailing is not required, the high-pressure gas is stored in the gas storage chamber 1b. When nailing is required, the damper 1c is opened to complete the nailing operation. After nailing is completed, the damper 1c is closed again under the action of the high-pressure gas in the gas storage chamber 1b, reducing the risk of high-pressure gas leakage from the mating position of the piston assembly 3 and the piston chamber 1a. This allows the high-pressure gas in the gas storage chamber 1b of the lithium-ion nail gun to be stored for a long time, improving the efficiency of the nail gun.

[0025] Preferred, such as Figure 3 As shown, one end of the damper 1c is pivotally connected to the gun body 1 via a rotating shaft, and the other end of the damper 1c is provided with a push rod 1d. One end of the push rod 1d is drivenly connected to the damper 1c, and the other end of the push rod 1d extends out of the gun body 1 through a mounting hole provided on the gun body 1, so as to facilitate pushing the damper 1c to open from the outside of the gun body 1.

[0026] More preferably, a sealing gasket 1e is provided at the mating position between the damper 1c and the gun body 1. The sealing gasket 1e can be embedded in the damper 1c. Similarly, to ensure the sealing between the gun body 1 and the cover 2, a sealing ring is also provided at the mating position between the gun body 1 and the cover 2, which is not shown in the attached drawings. A sealing element 1d1 is provided between the push rod 1d and the mounting hole of the gun body 1. The sealing element 1d1 can make the push rod 1d fit more tightly with the mounting hole and prevent high-pressure gas leakage.

[0027] More preferably, a cylindrical insert 1a1 is provided inside the piston cavity 1a. The cylindrical insert 1a1 is injection molded from polyoxymethylene material. The use of polyoxymethylene material in the cylindrical insert 1a1 has self-lubricating properties, which can enhance the sealing performance between the piston assembly and the cylindrical insert 1a1. Alternatively, the cylindrical insert 1a1 can be precision machined from a metal tube. Precision machining of the metal tube can improve the smoothness and roundness of its inner wall, which also facilitates the improvement of the sealing performance between the cylindrical insert 1a1 and the piston assembly.

[0028] More preferably, the cover 2 is provided with an air injection port 2a, which can be used to replenish the high-pressure gas in the gas storage chamber 1b in a timely and effective manner when the high-pressure gas is lost, so that the lithium-ion steel nail gun is always in a highly efficient and usable state.

[0029] More preferably, Figure 5 As shown, the piston assembly 3 includes a piston body 3a, on which a striking rod 3b and a drive rod 3c are mounted. The striking rod 3b and the drive rod 3c are separate structures, each mounted on the piston body 3a. The striking rod 3b is positioned on the central axis of the piston body 3a, and the drive rod 3c has several drive shafts 3c1 evenly distributed on it. Because the striking rod 3b and the drive rod 3c are separate structures, when the driving device drives the lithium-ion nail gun piston assembly 3 to move as a whole, the force of the driving device 3d is primarily applied to the drive rod 3c. Therefore, the striking rod 3b is not subjected to force during operation and can maintain a relatively stable state, enabling nail driving. This also more effectively ensures the sealing of the piston body 3a, and reduces the precision requirements for the machining of the striking rod 3b and the drive rod 3c.

[0030] More preferably, the drive shaft 3c1 includes a central shaft and a bushing, the bushing being mounted on the drive rod 3c via the central shaft.

[0031] More preferably, such as Figure 8 As shown, the piston body 3a is provided with three layers of sealing rings 3a1 along the axial direction, wherein the middle layer sealing ring 3a1 has an X-shaped cross section.

[0032] More preferably, the striking rod 3b is mounted on the piston body 3a via a threaded connection, the base of the driving rod 3c is sleeved on the piston body 3a at the position where the striking rod 3b is mounted, the base of the driving rod 3c is connected to the base of the striking rod 3b by a pin 3c3, and a buffer pad 3c3 is provided between the driving rod 3c and the piston body 3a.

[0033] More preferably, the piston assembly 3 is further provided with a driving device 3d, the driving device 3d includes a driving gear assembly 3d1, a one-way transmission gearbox 3d2 and a driving motor 3d3, the driving motor 3d3 is drivingly connected to the one-way transmission gearbox 3d2, the one-way transmission gearbox 3d2 is drivingly connected to the driving gear assembly 3d1, and the driving gear assembly 3d1 is drivingly connected to a plurality of driving shafts 3c1 evenly arranged on the driving rod 3c.

[0034] More preferably, such as Figure 6 and Figure 7As shown, the drive gear assembly 3d1 is provided with an irregular gear, which includes a gear segment and a toothless segment 3d1-4. The gear segment is provided with a first small tooth 3d1-1, several intermediate drive teeth 3d1-2 and a final large tooth 3d1-3. A first induction magnet 3d4 is provided on the irregular gear, and a first Hall sensor 3d5 is fixedly provided on the cover of the irregular gear. The first Hall sensor 3d5 is electrically connected to the control device of the lithium-ion steel nail gun.

[0035] Description of the operating status of the drive unit: 1. During operation, the drive motor 3d3 drives the one-way transmission gearbox 3d2 to work. The one-way transmission gearbox 3d2 drives the irregular gear of the drive gear assembly 3d1 to rotate in the same direction C. The rotation of the irregular gear of the drive gear assembly 3d1 drives the drive rod 3c, piston body 3a and striking rod 3b to move towards the rear end of the gun body 1. 2. For example Figure 6 As shown, when the irregular gear rotates to the position of the first induction magnet 3d4 set on it and the first Hall sensor 3d5 set on its cover, the first Hall sensor 3d5 transmits the signal to the control device of the lithium-ion steel nail gun. The control device drives the irregular gear of the drive gear assembly 3d1 to stop rotating through the drive motor 3d3 and the one-way transmission gearbox 3d2. At this time, the end large tooth 3d1-3 just hits the last drive shaft 3c1, and the piston assembly 3 of the lithium-ion steel nail gun just stops at the ready-to-fire position and remains in the ready-to-fire state. 3. When nailing is required, align the barrel 6 with the desired nailing position and press it down. The barrel 6 will push the drive bracket 5 to overcome the resistance of the return spring 5b and move towards one end of the gun body 1 where the cover 2 is located. At this time, the drive rod 5a will drive the push rod 1d to move, causing the air damper 1c to open, and the gas storage chamber 1b to connect with the piston chamber 1a. When the trigger is pulled, the drive motor 3d3 and the one-way transmission gearbox 3d2 drive the irregular gear of the drive gear assembly 3d1 to continue rotating, causing the end large tooth 3d1-3 to disengage from the last drive shaft 3c1, transitioning to the toothless section 3d1-4. The high-pressure gas stored in the gas storage chamber 1b drives the piston assembly 3 to move at high speed, and the striking rod 3b delivers the steel nail box 7 to the position of the barrel 6 to drive the steel nail into the workpiece to be nailed. Figure 7 The state shown; 4. After nailing is completed, release the barrel 6. The drive bracket 5 and barrel 6 will reset under the action of the return spring 5b, and the air damper 1c will also close under the action of high-pressure gas in the air storage chamber 1b, awaiting the next round of nailing operation; Figure 7As shown, when the next nailing operation is needed, the drive motor 3d3 drives the one-way transmission gearbox 3d2 to work, which in turn drives the irregular gear of the drive gear assembly 3d1 to continue to rotate. The first small tooth 3d1-1 smoothly passes over the first drive shaft 3c1, which facilitates the subsequent drive tooth 3d1-2 to drive the drive shaft 3c1 to move. Therefore, the first small tooth 3d1-1 is slightly smaller than the drive tooth 3d1-2. The last large tooth 3d1-3 needs to hold the last drive shaft 3c1 in the ready-to-fire state. Therefore, the last large tooth 3d1-3 is slightly thicker than both the first small tooth 3d1-1 and the drive tooth 3d1-2.

[0036] More preferably, the drive gear assembly 3d1 and the irregular gear adopt a multi-drive head drive method, and each drive connection position is provided with a buffer block 3d6. The buffer block 3d6 can reduce vibration and noise during operation.

[0037] More preferably, the gun mount 4 is further provided with a second Hall sensor 5c, and the drive bracket 5 is provided with a corresponding second induction magnet 5c1. The second Hall sensor 5c transmits the sensor signal to the control device of the lithium-ion nail gun. A nail magazine detection mechanism 5d is pivotally connected to the position where the nail magazine 7 is installed on the gun mount 4. A torsion spring is provided between the nail magazine detection mechanism 5d and the gun mount 4. The nail magazine detection mechanism 5d is also provided with a first drive head 5d1 and a first limit head 5d2. When the nail magazine 7 is not installed, the nail magazine detection mechanism 5d is engaged by the first limit head 5d2 under the action of the torsion spring, and the drive bracket 5 is in an undriveable compressed state. When the nail magazine 7 is installed on the gun mount 4, the nail magazine detection mechanism 5d is driven to rotate by the first drive head 5d1, so that the first limit head 5d2 disengages from the drive bracket 5, and the drive bracket 5 is in a driveable compressed state. Therefore, by setting a nail box detection mechanism 5d in the nail box 7 to restrict the drive bracket 5, only after the nail box 7 is installed and the nail box detection mechanism 5d is driven to rotate, so that the first limiting head 5d2 is disengaged from the drive bracket 5, can the drive bracket 5 be driven to move by the barrel 6, so that the second Hall sensor 5c and the second induction magnet 5c1 are brought close to generate an induction signal, and the subsequent nailing operation can be carried out, thus further improving safety.

[0038] More preferably, a nail detection mechanism 5e is pivotally connected to the position where the nail magazine 7 is installed on the gun mount 4. A torsion spring is provided between the nail detection mechanism 5e and the gun mount 4. The nail detection mechanism 5e is provided with a second drive head 5e1 and a second limiting head 5e2. When there are nails in the nail magazine 7, the nail pusher 7a provided on the nail magazine 7 moves away from the second drive head 5e1 of the nail detection mechanism 5e, and the second limiting head 5e2 moves away from the drive bracket 5, so that the drive bracket 5 is in a driveable compression state. When there are no nails in the nail magazine 7, the nail pusher 7a provided on the nail magazine 7 drives the nail detection mechanism 5e to rotate through the second drive head 5e1, so that the second limiting head 5e2 abuts against the drive bracket 5, and the drive bracket 5 is in an inoperable compression state. Therefore, by setting a nail detection mechanism 5e in the nail magazine 7 to detect the nails in the nail magazine 7, only when there are still nails in the nail magazine 7 will the nail pusher 7a move away from the second drive head 5e1 and the second limit head 5e2 move away from the drive bracket 5, so that the drive bracket 5 can be moved by the barrel 6, thereby bringing the second Hall sensor 5c and the second induction magnet 5c1 closer to generate an induction signal, so that the subsequent nailing operation can be carried out, thereby improving the safety of the lithium battery nail gun.

[0039] More preferably, the drive bracket 5 is further provided with a nailing depth limiting device 5f. The nailing depth limiting device 5f is slidably mounted on the drive bracket 5, and includes a first depth limiting part 5f1 and a second depth limiting part 5f2. Different heights of the first depth limiting part 5f1 and the second depth limiting part 5f2 correspond to different nailing depths. For example... Figure 2 As shown, the first depth limiting part 5f1 is positioned higher than the second depth limiting part 5f2. During the process of the barrel 6 driving the drive bracket 5 to move the same distance via the drive head 6a, the distance the barrel 6 moves at the first depth limiting part 5f1 is less than the distance the barrel 6 moves at the second depth limiting part 5f2. Therefore, when the second depth limiting part 5f2 of the nailing depth limiting device 5f is aligned with the drive head 6a of the barrel 6, the nailing depth is deeper, and when the first depth limiting part 5f1 of the nailing depth limiting device 5f is aligned with the drive head 6a of the barrel 6, the nailing depth is shallower, thereby achieving the adjustment of the nailing depth.

[0040] More preferably, for the assembly of the barrel 6, the gun holder 4 is also provided with a limiting pin 6b, and a limiting step 6c is provided at a corresponding position on the barrel 6. The limiting pin 6b can be pulled outward to disengage from the limiting step 6c and remove the barrel 6. A return spring is provided between the limiting pin 6b and the gun holder 4, so that it can automatically return to its original position after being pulled outward.

[0041] The foregoing description illustrates and describes preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A novel lithium-ion nail gun, comprising a gun body (1), a cover (2), and a piston assembly (3); a gun frame (4) is provided at the front end of the gun body (1), a drive bracket (5) and a gun barrel (6) are movably arranged on the gun frame (4), a return spring (5b) is provided between the drive bracket (5) and the gun frame (4), and a nail box (7) is detachably arranged on the gun frame (4); characterized in that: The cover (2) is located at the rear end of the gun body (1) and forms a piston chamber (1a) and a gas storage chamber (1b). An openable damper (1c) is provided between the piston chamber (1a) and the gas storage chamber (1b). The piston chamber (1a) is used to house the piston assembly (3), and the gas storage chamber (1b) is used to store high-pressure gas. When nailing is required, the damper (1c) is opened, so that the high-pressure gas in the gas storage chamber (1b) pushes the piston assembly (3) in the piston chamber (1a) to move at high speed to complete the nailing operation.

2. The novel lithium-ion battery-powered steel nail gun as described in claim 1, characterized in that: One end of the damper (1c) is pivotally connected to the gun body (1) via a pivot shaft. The other end of the damper (1c) is provided with a push rod (1d). One end of the push rod (1d) is driven to the damper (1c). The other end of the push rod (1d) extends out of the gun body (1) through a mounting hole provided on the gun body (1), so as to facilitate pushing the damper (1c) to open from the outside of the gun body (1).

3. The novel lithium-ion battery-powered steel nail gun as described in claim 2, characterized in that: A sealing gasket (1e) is provided at the position where the damper (1c) and the gun body (1) meet; a sealing element (1d1) is provided between the push rod (1d) and the mounting hole of the gun body (1).

4. The novel lithium-ion battery-powered steel nail gun as described in claim 1, characterized in that: The piston assembly (3) includes a piston body (3a), on which a striking rod (3b) and a driving rod (3c) are provided. The striking rod (3b) and the driving rod (3c) are separate structures and are respectively provided on the piston body (3a). The striking rod (3b) is located on the central axis of the piston body (3a), and a plurality of driving shafts (3c1) are evenly provided on the driving rod (3c).

5. The novel lithium-ion battery-powered steel nail gun as described in claim 4, characterized in that: The drive shaft (3c1) includes a central shaft and a bushing, the bushing being mounted on the drive rod (3c) via the central shaft.

6. The novel lithium-ion steel nail gun as described in claim 4, characterized in that: The piston body (3a) is provided with three layers of sealing rings (3a1) along the axial direction, wherein the middle layer sealing ring (3a1) has an X-shaped cross section.

7. A novel lithium-ion battery-powered steel nail gun as described in claim 4, characterized in that: The piston assembly (3) is also provided with a drive device (3d), which includes a drive gear assembly (3d1), a one-way transmission gearbox (3d2), and a drive motor (3d3). The drive motor (3d3) is driven to the one-way transmission gearbox (3d2), the one-way transmission gearbox (3d2) is driven to the drive gear assembly (3d1), and the drive gear assembly (3d1) is driven to a plurality of drive shafts (3c1) evenly arranged on the drive rod (3c).

8. A novel lithium-ion battery-powered steel nail gun as described in claim 7, characterized in that: The drive gear assembly (3d1) is provided with an irregular gear, which includes a gear segment and a toothless segment (3d1-4). The gear segment is provided with a first small tooth (3d1-1), several intermediate drive teeth (3d1-2), and a final large tooth (3d1-3). A first induction magnet (3d4) is provided on the irregular gear. A first Hall sensor (3d5) is fixedly provided on the cover of the irregular gear. The first Hall sensor (3d5) is electrically connected to the control device of the lithium-ion steel nail gun.

9. A novel lithium-ion battery-powered steel nail gun as described in any one of claims 1-8, characterized in that: The gun mount (4) is also equipped with a second Hall sensor (5c), and the drive bracket (5) is equipped with a corresponding second induction magnet (5c1). The second Hall sensor (5c) transmits the sensor signal to the control device of the lithium-ion nail gun. The nail magazine (7) is mounted on the gun mount (4) and a nail magazine detection mechanism (5d) is pivotally connected to it. A torsion spring is provided between the nail magazine detection mechanism (5d) and the gun mount (4). The nail magazine detection mechanism (5d) is also equipped with a first drive head (5d1) and a first limit head (5d2). When the nail magazine (7) is not installed, the nail magazine detection mechanism (5d) is under the action of the torsion spring, and the first limit head (5d2) hooks the drive bracket (5), and the drive bracket (5) is in an undriveable compressed state. After the nail box (7) is installed on the gun mount (4), the nail box detection mechanism (5d) is driven to rotate by the first drive head (5d1), so that the first limit head (5d2) is disengaged from the drive bracket (5), and the drive bracket (5) is in a driveable compression state.

10. A novel lithium-ion battery-powered steel nail gun as described in claim 9, characterized in that: A nail detection mechanism (5e) is also pivotally connected to the position where the nail box (7) is installed on the gun mount (4). A torsion spring is provided between the nail detection mechanism (5e) and the gun mount (4). The nail detection mechanism (5e) is provided with a second drive head (5e1) and a second limit head (5e2). When there are still nails in the nail box (7), the nail pusher (7a) provided on the nail box (7) is away from the second drive head (5e1) of the nail detection mechanism (5e), ​​and the second limit head (5e2) is away from the drive bracket (5). The drive bracket (5) is in a driveable compression state. When there are no steel nails in the nail box (7), the nail pusher (7a) set on the nail box (7) drives the nail detection mechanism (5e) to rotate through the second drive head (5e1), so that the second limit head (5e2) abuts against the drive bracket (5), and the drive bracket (5) is in an undriveable compressed state.

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