Nail gun

Abstract

The invention discloses a nail gun and belongs to the technical field of electric tools, the nail gun comprises a machine shell, an energy storage assembly, a striking piece, a driving assembly and a locking assembly, the energy storage assembly comprises a cylinder body structure and a piston, the striking piece is driven by the piston to move forwards from an initial position to a nailing position, and the driving assembly comprises a motor and a moving piece; the motor drives the moving part to move back and forth between the front position and the rear position, the locking assembly has a locking state in which the locking assembly is matched with the striking part to lock the striking part at the initial position and an unlocking state in which the locking assembly is separated from the striking part, and a release matching structure is arranged between the moving part and the locking assembly. A transmission matching structure capable of being separated and combined is arranged between the moving piece and the striking piece. Unlocking of the locking assembly and energy storage of the energy storage assembly are achieved through front-back linear movement of the moving part, the situation that the moving part moving front and back is clamped due to unstable thrust or large unbalance loading and the like is not prone to occurring, the front-back movement stability of the striking part can be improved, and the nailing efficiency and the nailing effect can be improved easily.

Description

Technical Field

[0001] The present invention relates to the technical field of power tools, and particularly to a nail gun. Background Art

[0002] A nail gun is a handheld nail driving tool that drives nails into objects such as wood through a rapidly moving firing pin. According to different drive sources, nail guns can be divided into electric nail guns, pneumatic nail guns, manual nail guns, etc. Existing pneumatic nail guns generally adopt a double-cylinder structure. After the large piston in the large cylinder moves to compress the air in the large cylinder to a certain extent, the piston in the small cylinder is released, and the compressed air in the large cylinder flows into the small cylinder through the air flow channel and pushes the small piston in the small cylinder to move rapidly. The rapidly moving small piston drives the firing pin to move synchronously, and the rapidly moving firing pin drives the nail into objects such as wood to achieve the purpose of driving nails. Existing pneumatic nail guns generally drive the large piston in the large cylinder to move through a crank-link structure to compress the gas. Since there will be a large force deviation angle during the reciprocating motion of the crank-link structure, when the swing angle or eccentric angle of the connecting rod is too large, the process of the crank-link structure driving the large piston to compress the gas is prone to unstable thrust and large eccentric load, resulting in the large piston being prone to jamming during the process of compressing the gas, which is not conducive to ensuring the working efficiency and nail driving effect of the nail gun. Summary of the Invention

[0003] In order to solve the above-mentioned drawbacks and deficiencies existing in the prior art, the present invention provides a nail gun. The unlocking of the locking assembly and the energy storage of the energy storage assembly are realized through the forward and backward linear motion of a moving member. The forward and backward moving moving member is not easily jammed due to reasons such as unstable thrust or large eccentric load, which can improve the stability of the forward and backward motion of the striking member and is conducive to improving the nail driving efficiency and nail driving effect.

[0004] In order to achieve the above technical purpose, the nail gun provided by the present invention includes:

[0005] A housing having a handle;

[0006] An energy storage assembly disposed in the housing and including a cylinder structure having an energy storage chamber and a piston movably disposed in the cylinder structure, and the volume of the energy storage chamber changes when the piston moves;

[0007] A striking member connected to the piston, the striking member and the piston having an initial position and a nail driving position, and the striking member moves forward from the initial position to the nail driving position under the drive of the piston;

[0008] A drive assembly including a motor and a moving member, and the motor drives the moving member to move back and forth between a front position and a rear position;

[0009] The nail gun further includes a locking assembly, which has a locked state in which it cooperates with the striking member to lock the striking member in the initial position and an unlocked state in which it disengages from the striking member;

[0010] There is a release cooperation structure between the moving member and the locking assembly. The release cooperation structure drives the locking assembly to switch from the locked state to the unlocked state during the process of the moving member moving forward from the rear position to the front position;

[0011] A separable transmission cooperation structure is provided between the moving member and the striking member. The moving member moving backward drives the striking member and the piston to move backward from the nail driving position to the initial position through the transmission cooperation structure, so that the piston compresses the energy storage medium in the energy storage cavity to complete energy storage.

[0012] Preferably, the locking assembly includes a locking block and an elastic member acting on the locking block. The elastic member presses the locking block against the striking member. The elastic member is configured to be deformed under force when the locking block is driven by the release cooperation structure to disengage from the striking member, and to drive the locking block to cooperate with the striking member to lock the striking member in the initial position when the striking member moves backward to the initial position.

[0013] Preferably, the elastic member is a locking spring in a compressed state. One end of the locking spring is positioned and the other end abuts against the locking block.

[0014] Preferably, the release cooperation structure includes a release inclined surface provided on at least one of the moving member and the locking block. During the process of the moving member moving forward from the rear position to the front position, the release inclined surface drives the locking block to move so that the locking block disengages from the striking member.

[0015] Preferably, the locking block is slidably arranged; alternatively, the locking block is swingably arranged.

[0016] Preferably, the striking member is provided with a locking groove that cooperates with the locking block, and a part of the locking block is inserted into the locking groove to lock the striking member in the initial position.

[0017] Preferably, the locking assembly further includes a pressure lever linked to the locking block. The nail gun includes a control module and a position switch arranged in a fixed position. The position switch is signal-connected to the control module, and the motor is controlled by the control module. The locking block switching from the unlocked state to the locked state causes the pressure lever to trigger the position switch, and the locking block switching from the locked state to the unlocked state causes the pressure lever to release the position switch.

[0018] Preferably, a magnet is provided on the moving member. The nail gun is provided with two magnetic induction elements arranged in a fixed position and spaced apart front and rear. The two magnetic induction elements are signal-connected to the control module. One magnetic induction element is arranged corresponding to the moving member moving forward to the front position, and the other magnetic induction element is arranged corresponding to the moving member moving backward to the rear position.

[0019] Preferably, the transmission and cooperation structure includes a front pushing surface provided on the moving member and a rear pushing surface provided on the striking member. The moving member moving backward drives the striking member to move backward to the initial position through the abutting cooperation between the front pushing surface and the rear pushing surface.

[0020] Preferably, the driving assembly includes a gear driven by a motor. A plurality of transmission teeth are provided on the moving member at intervals in the front-rear direction, and the transmission teeth are engaged with the gear. The motor drives the moving member to move back and forth through the gear.

[0021] After adopting the above technical solutions, the present invention has the following advantages:

[0022] 1. For the nail gun provided by the present invention, a locking assembly is additionally provided. A release and cooperation structure is arranged between the moving member and the locking assembly, and a transmission and cooperation structure is arranged between the moving member and the striking member. During the process of the moving member moving forward from the rear position to the front position, the locking assembly can be switched from the self-locking state to the unlocking state through the release and cooperation structure, releasing the locking of the locking assembly on the striking member, so that the piston can drive the striking member to move forward from the initial position to the nail driving position to achieve the nail driving purpose. During the process of the moving member moving backward from the front position to the rear position, the striking member and the piston can be driven to move backward and reset to the initial position through the transmission and cooperation structure. The piston moving backward compresses the energy storage medium in the energy storage cavity to complete energy storage, preparing for the next nail driving. The unlocking of the locking assembly and the energy storage of the energy storage assembly are realized through the linear forward and backward movement of the moving member. The force exerted by the moving member moving forward on the locking assembly is relatively stable, and the thrust exerted by the moving member moving backward on the striking member is also relatively stable, enabling the locking assembly to smoothly disengage from the striking member during nail driving and enabling the energy storage assembly to smoothly complete the energy storage action after nail driving. The moving member moving back and forth is not easily stuck due to reasons such as unstable thrust or large eccentric load, which can improve the stability of the forward and backward movement of the striking member and is beneficial to improving the nail driving efficiency and nail driving effect.

[0023] 2. The elastic member applies a pre-tightening force to the lock block to push the lock block against the striking member, so that the striking member is in a locked state of cooperating with the striking member to lock the striking member at the initial position under normal conditions. During the process of the moving member moving forward from the rear position to the forward movement position, the lock block is driven to overcome the pre-tightening force of the elastic member and disengage from the striking member through the release and cooperation structure, releasing the locking state of the locking assembly on the striking member, so that the striking member can move from the initial position to the nail driving position to achieve the nail driving action. When the moving member drives the striking member to move backward to the initial position, the elastic member that restores deformation drives the lock block to automatically reset to the state of cooperating with the striking member to lock the striking member at the initial position. The specific structure of the locking assembly is reasonably set so that the locking assembly can lock or disengage from the striking member in a timely manner.

[0024] 3. At least one of the moving member and the locking block is provided with a release inclined surface. During the process of the moving member moving forward from the rear position to the front position, the locking block is pushed to move through the release inclined surface, so that the locking block switches from the locked state to the unlocked state, and the locking state of the locking assembly on the striking member is released. Reasonably set the specific structure of the release cooperation structure, so that the moving member moving forward can drive the locking block to smoothly disengage from the striking member through the release cooperation structure.

[0025] 4. The locking block can be slidably arranged, or the locking block can be swingably arranged. The moving member moving forward drives the locking block to slide or swing away from the striking member through the release cooperation structure, so that the locking block can smoothly disengage from the striking member. Reasonably set the movable setting mode of the locking block, so that the locking block can smoothly disengage from the striking member under the action of the release cooperation structure.

[0026] 5. The striking member can be provided with a locking groove, and a part of the locking block is inserted into the locking groove to cooperate with the striking member, so as to lock the striking member at the initial position. Reasonably set the cooperation structure between the locking block and the striking member to meet the locking requirement that the locking assembly stably locks the striking member at the initial position.

[0027] 6. When the locking block switches from the unlocked state to the locked state, the pressure lever triggers the position switch. When the locking block switches from the locked state to the unlocked state, the locking block releases the position switch. When the moving member drives the striking member and the piston to reset backward to the initial position, the locking block switches to the locked state and the pressure lever triggers the position switch. The control module judges that the striking member has reset to the initial position according to the trigger signal of the position switch, and the next nail driving cycle can start smoothly. If the position switch is in a non-triggered state after a nail driving cycle ends, the control module can first command the motor to drive the moving member to move backward when starting the next nail driving cycle. The moving member moving backward drives the striking member to reset to the initial position so that the position switch is triggered by the pressure lever, and then the nail driving cycle is executed after the position switch is triggered. Through the cooperation between the position switch and the pressure lever, it is ensured that the striking member is in the initial position every time the nail driving cycle is started, and the movement stroke of the striking member during nail driving is ensured, which is beneficial to ensuring the nail driving effect.

[0028] 7. A magnet is arranged on the moving member, and two magnetic induction elements are distributed at intervals front and back. When the moving member moves forward to trigger the magnetic induction element in front of the magnet, it means that the moving member has moved forward in place, and the control module commands the motor to stop driving. When the moving member moves backward to trigger the magnetic induction element behind the magnet, it means that the moving member has moved backward in place, and the control module commands the motor to stop driving. By combining the magnet with the two magnetic induction elements, the forward and backward movement stroke of the moving member is controlled, avoiding the situation that the moving member does not move in place or moves over, and ensuring that the moving member can smoothly unlock the locking assembly and store energy for the energy storage assembly.

[0029] 8. A front pushing surface is provided on the moving member, and a rear pushing surface is provided on the striking member. During the backward movement of the moving member, the striking member and the piston are driven to move backward to the initial position through the abutting cooperation between the front pushing surface and the rear pushing surface. A separable transmission cooperation structure between the moving member and the striking member is reasonably set, and the contact area between the moving member and the striking member is ensured through surface-to-surface cooperation, so that the moving member moving backward can smoothly drive the striking member and the piston to move backward and reset to the initial position.

[0030] 9. The motor drives the moving member to move back and forth through the meshing of the gear and the transmission gear. The transmission cooperation structure between the motor and the moving member is reasonably set to keep the driving assembly compact in structure, and at the same time ensure the smoothness of the motor driving the moving member to move back and forth and the bearing capacity of the moving member, so that the moving member can smoothly and effectively drive the striking member and the piston to move backward and reset to the initial position. Description of the Drawings

[0031] Figure 1 It is the overall structure diagram of the nail gun in the first embodiment;

[0032] Figure 2 It is the partial structure diagram of the nail gun in the first embodiment;

[0033] Figure 3 It is the structure diagram of the energy storage component and the driving component in the nail gun in the first embodiment;

[0034] Figure 4 It is the side view of the energy storage component and a part of the driving component in the nail gun in the first embodiment;

[0035] Figure 5 It is the structure diagram of the energy storage component and the striking member in the nail gun in the first embodiment;

[0036] Figure 6 It is the partial structure diagram of the locking component in the nail gun in the first embodiment when it is in the locked state;

[0037] Figure 7 It is the structure diagram of the locking component in the nail gun in the first embodiment;

[0038] Figure 8 It is the cross-sectional view of the locking block along the sliding direction in the nail gun in the first embodiment;

[0039] Figure 9a It is the partial structure diagram of the nail gun in the first embodiment when the striking member and the piston are in the initial position and the moving member is in the rear position;

[0040] Figure 9b It is the partial structure diagram of the nail gun in the first embodiment when the moving member moves forward until the first release inclined surface just contacts the second release inclined surface;

[0041] Figure 9cIt is a partial structural diagram of the nail gun in Example 1 when the moving part is in the front position, the piston and the striking part are in the nailing position, and the locking structure is in the unlocked state;

[0042] Figure 9d It is a partial structural diagram of the nail gun in the first embodiment when the moving part moves backward until the front push surface and the rear push surface just come into contact with each other;

[0043] Figure 9e It is a partial structural diagram of the nail gun in Example 1 when the moving member drives the striking member and the piston to move backward until they are about to return to the initial position;

[0044] Figure 9f It is a local structure when the moving part in the nail gun of Example 1 drives the striking part and the piston to move backward to the initial position;

[0045] Figure 10 It is a structural diagram of the piston, the striking member and the locking assembly in the nail gun of Example 2 when the locking assembly is in a locked state;

[0046] Figure 11 It is a side view of the piston, striking member, locking assembly and position switch in the nail gun of Example 2 when the locking assembly is in a locked state;

[0047] Figure 12 It is a partial cross-sectional view of the striking member and the locking assembly in the nail gun of Example 2 when the locking assembly is in a locked state;

[0048] Figure 13 It is a structural diagram of a locking block in a nail gun of Embodiment 2;

[0049] Figure 14a It is a partial structural diagram of the nail gun in Example 2 when the striking member and the piston are in the initial position and the moving member is in the rear position;

[0050] Figure 14b It is a partial structural diagram of the nail gun in the second embodiment when the moving part moves forward until the first release inclined surface just contacts the locking rod;

[0051] Figure 14c It is a partial structural diagram of the nail gun in Example 2 when the moving part is in the front position, the piston and the striking part are in the initial position, and the locking structure is in the unlocked state;

[0052] Figure 14d It is a partial structural diagram of the nail gun of Example 2 when the moving part is in the front position, the piston and the striking part are in the nailing position, and the locking structure is in the unlocked state;

[0053] Figure 14e It is a partial structural diagram of the nail gun in the second embodiment when the moving part moves backward until the front push surface and the rear push surface just come into contact with each other;

[0054] Figure 14fIt is a local structure when the moving part in the nail gun of Example 2 drives the striking part and the piston to move backward to the initial position;

[0055] Figure 15 It is a structural diagram of the piston, striking member, moving member and locking assembly in the nail gun of Example 3;

[0056] Figure 16 A side view of the piston, striking member, locking assembly and position switch in the nail gun of Example 3 when the locking assembly is in a locked state;

[0057] Figure 17 This is a structural diagram of a locking block in a nail gun of Embodiment 3;

[0058] Figure 18a It is a partial structural diagram of the nail gun in Example 3 when the striking member and the piston are in the initial position and the moving member is in the rear position;

[0059] Figure 18b It is a partial structural diagram of the nail gun in Example 3 when the moving part moves forward until the first release inclined surface just contacts the second release inclined surface;

[0060] Figure 18c It is a partial structural diagram of the nail gun in Example 3 when the moving part is in the front position, the piston and the striking part are in the initial position, and the locking structure is in the unlocked state;

[0061] Figure 18d It is a partial structural diagram of the nail gun of Example 3 when the moving part is in the front position, the piston and the striking part are in the nailing position, and the locking structure is in the unlocked state;

[0062] Figure 18e It is a partial structural diagram of the nail gun in the third embodiment when the moving part moves backward until the front push surface and the rear push surface just come into contact with each other;

[0063] Figure 18f This is the local structure when the moving part in the nail gun of Example 3 drives the striking part and the piston to move backward to the initial position.

[0064] In the figure, 100-housing, 110-handle, 120-fixed seat assembly, 121-seat body, 122-seat cover, 123-first seat plate, 124-second seat plate, 125-slideway, 130-trigger,

[0065] 200-energy storage assembly, 210-cylinder structure, 211-energy storage chamber, 212-inner cylinder sleeve, 2121-convex edge, 213-outer cylinder sleeve, 214-rear cover, 220-piston, 230-energy storage medium, 240-charging valve, 250-pressure relief valve, 260-shock absorber head,

[0066] 300-strike piece, 310-lock slot,

[0067] 400 - Driving assembly, 410 - Motor, 420 - Moving part, 421 - Transmission gear, 422 - Widening part, 430 - Gear, 440 - Magnet,

[0068] 500 - Locking assembly, 510 - Locking block, 511 - Concave hole, 512 - Tongue piece, 513 - Open groove, 514 - Lobe, 515 - Convex post, 516 - Convex block, 517 - Convex platform, 520 - Elastic part, 521 - Locking spring, 530 - Pressing rod, 540 - Rolling part, 550 - Pin rod, 560 - Locking rod, 270 - Hinged rod,

[0069] 610 - Release mating structure, 611 - First release inclined surface, 612 - Second release inclined surface,

[0070] 620 - Transmission mating structure, 621 - Front pushing surface, 622 - Rear pushing surface,

[0071] 710 - Nail feeding assembly, 720 - Safety ejector rod assembly,

[0072] 810 - Control module, 820 - Position switch, 830 - Magnetic induction element. Detailed implementation manners

[0073] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following terms indicating orientation or position relationship, such as "upper", "lower", "left", "right", "longitudinal", "lateral", "inner", "outer", "vertical", "horizontal", "top", "bottom", etc., are only based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0074] Embodiment 1

[0075] Combined with Figures 1 to 8 , the nail gun provided by Embodiment 1 of the present invention includes:

[0076] A housing 100, and the housing 100 has a handle 110;

[0077] An energy storage assembly 200, the energy storage assembly 200 is arranged in the housing 100 and includes a cylinder structure 210 having an energy storage cavity 211 and a piston 220 movably arranged in the cylinder structure 210. The movement of the piston 220 changes the volume of the energy storage cavity 211;

[0078] A striking part 300, the striking part 300 is connected to the piston 220. The striking part 300 and the piston 220 have an initial position and a nail driving position. The striking part 300 moves forward from the initial position to the nail driving position under the drive of the piston 220;

[0079] A driving assembly 400, the driving assembly 400 includes a motor 410 and a moving member 420, and the motor 410 drives the moving member 420 to move back and forth between a front position and a rear position;

[0080] The nail gun further includes a locking assembly 500, and the locking assembly 500 has a locked state in which it cooperates with the striking member 300 to lock the striking member 300 in the initial position and an unlocked state in which it disengages from the striking member 300;

[0081] There is a release cooperation structure 610 between the moving member 420 and the locking assembly 500, and the release cooperation structure 610 switches the locking assembly 500 from the locked state to the unlocked state during the process of the moving member 420 moving forward from the rear position to the forward movement position;

[0082] A separable transmission cooperation structure 620 is provided between the moving member 420 and the striking member 300, and the moving member 420 moving backward drives the striking member 300 and the piston 220 to move backward from the nail driving position to the initial position through the transmission cooperation structure 620, so that the piston 220 compresses the energy storage medium 230 in the energy storage cavity 211 to complete energy storage.

[0083] The unlocking of the locking assembly 500 and the energy storage of the energy storage assembly 200 are realized through the forward and backward linear movement of the moving member 420. The force applied by the moving member 420 moving forward to the locking assembly 500 is relatively stable, and the thrust applied by the moving member 420 moving backward to the striking member 300 is also relatively stable, so that the locking assembly 500 can smoothly disengage from the striking member 300, and the energy storage assembly 200 can also smoothly complete the energy storage action after nail driving. The moving member 420 moving back and forth is not easily stuck due to unstable thrust or large eccentric load, which can improve the stability of the forward and backward movement of the striking member 300, and is beneficial to improving the nail driving efficiency and ensuring the nail driving effect.

[0084] Combined with Figure 1 、 Figure 2, the energy storage component 200, the striking component 300, the locking component 500 and the moving component 420 are arranged inside the head of the housing 100, the handle 110 is located at the tail of the housing 100, and the motor 410 is arranged inside the housing 100 and in front of the handle 110. The nail gun further includes a nail feeding component 710, nails are loaded into the nail feeding component 710, and the nails in the nail feeding component 710 can move from the tail end to the head end under the pushing action of the pushing block and enter the preparation position. The head end of the nail feeding component 710 is also provided with a safety ejector rod component 720 (not fully shown in the figure) located at the front end of the housing 100. Through the safety ejector rod component 720, not only the safety of nail driving can be ensured, but also the depth of nail driving can be adjusted. For the specific structures of the nail feeding component 710 and the safety ejector rod component 720, reference can be made to the specific descriptions of the nail feeding component and the safety ejector rod component in the patent documents CN109623737B, US11478912B2, and EP3670093A1, which will not be elaborated here.

[0085] Combined with Figure 5 , as a preferred solution of this embodiment, the cylinder structure 210 of the energy storage component 200 includes an inner cylinder sleeve 212 and an outer cylinder sleeve 213 arranged inside and outside. A rear cover 214 is fixed to the rear end of the outer cylinder sleeve 213, and the rear cover 214 and the rear end of the outer cylinder sleeve 213 are in circumferential sealing cooperation. The front end of the inner cylinder sleeve 212 is provided with a flange 2121 located on the inner circumference of the front end of the outer cylinder sleeve 213, and the flange 2121 and the front end of the outer cylinder sleeve 213 are in circumferential sealing cooperation. The piston 220 is movably arranged inside the inner cylinder sleeve 212, and the piston 220 and the inner cylinder sleeve 212 are in circumferential sealing cooperation. The rear end of the inner cylinder sleeve 212 is open, the inner cavity of the inner cylinder sleeve 212 is communicated with the inner cavity of the outer cylinder sleeve 213, and the inner cylinder sleeve 212, the outer cylinder sleeve 213 and the piston 220 enclose an energy storage cavity 211. The energy storage cavity 211 is filled with gas, that is, in this embodiment, gas is used as the energy storage medium 230. The piston 220 moving backward reduces the volume of the energy storage cavity 211, and the gas in the energy storage cavity 211 is compressed to increase the air pressure, realizing the energy storage of the energy storage medium 230. When the striking component 300 is released, the piston 220 drives the striking component 300 to move forward under the pressure of the high-pressure gas in the energy storage cavity 211 to drive nails, the volume of the energy storage cavity 211 increases, and the gas in the energy storage cavity 211 expands to reduce the air pressure.

[0086] As an alternative solution of this embodiment, the energy storage medium 230 can also adopt a gas spring. At this time, the cylinder structure 210 can be provided with only one cylinder sleeve. The gas spring is arranged inside the cylinder sleeve, the rear end of the gas spring is positioned, the front end of the gas spring abuts against the piston 220, the piston 220 moving backward reduces the volume of the inner cavity of the cylinder sleeve and compresses the gas spring to realize energy storage. When the striking component 300 is released, the gas spring that restores its deformation drives the piston 220 and the striking component 300 to move forward to drive nails.

[0087] As another alternative solution of this embodiment, the energy storage medium 230 can also adopt a combination of gas and gas spring. At this time, the gas spring is arranged inside the inner cylinder sleeve 212, the energy storage cavity 211 is filled with gas, the piston 220 moving backward compresses the gas spring, and reduces the volume of the energy storage cavity 211 so that the gas in the energy storage cavity 211 is compressed. When the striking member 300 is released, the piston 220 drives the striking member 300 to move forward to drive nails under the action of the pressure of the high-pressure gas in the energy storage cavity 211 and the elastic force of the gas spring at the same time.

[0088] Combined with Figure 2 , a fixed seat assembly 120 is arranged inside the machine shell 100. The fixed seat assembly 120 includes a seat body 121 and a seat cover 122 fixed to one side of the seat body 121. The cylinder structure 210 is fixed to the rear side of the seat body 121. Combined with Figure 2 and Figure 5 , in order to enable the gas in the energy storage cavity 211 to have a reasonable air pressure range to meet the nail driving requirements, an inflation valve 240 for inflating the energy storage cavity 211 is fixed to the front side of the seat body 121, and a pressure relief valve 250 is arranged on the rear cover 214. When the air pressure of the compressed gas in the energy storage cavity 211 does not meet the nail driving requirements, the energy storage cavity 211 can be inflated through the inflation valve 240 to increase the air pressure after the gas is compressed. When the air pressure in the energy storage cavity 211 is too high, the pressure relief valve 250 can be unscrewed to exhaust the energy storage cavity 211 to appropriately reduce the air pressure after the gas is compressed.

[0089] In order to prevent the piston 220 moving forward from directly hitting the seat body 121, an elastic shock-absorbing head 260 is arranged at the front end of the inner cylinder sleeve 212. When the piston 220 moves forward to contact the shock-absorbing head 260, the piston 220 and the striking member 300 move forward to the nail driving position. The striking member 300 is strip-shaped and its length direction is arranged along the front-back direction. The rear end of the striking member 300 is connected to the piston 220 through a pin shaft or other connecting parts, and the front end of the striking member 300 extends forward through the through hole on the shock-absorbing head 260 out of the energy storage assembly 200.

[0090] Combined with Figure 4 , as a preferred solution of this embodiment, the driving assembly 400 includes a gear 430 driven by a motor 410. The moving member 420 is strip-shaped and its length direction is arranged along the front-back direction. A plurality of transmission teeth 421 are arranged on the moving member 420 at intervals along the front-back direction. The transmission teeth 421 are engaged with the gear 430, and the motor 410 drives the moving member 420 to move back and forth through the engagement of the gear 430 and the transmission teeth 421. As an alternative solution of this embodiment, the motor 410 can directly drive the gear 430 to rotate after appropriate deceleration, and the motor 410 can also drive the gear 430 to rotate through a gear rotation matching structure or other transmission matching structures after appropriate deceleration.

[0091] Combined withFigure 3 In this embodiment, a first seat plate 123 and a second seat plate 124 fixed together are provided between the seat body 121 and the seat cover 122. The first seat plate 123 and the second seat plate 124 cooperate to form a through groove for the moving member 420 and the striking member 300 to move back and forth. The moving member 420 and the striking member 300 are movably inserted into the through groove. In order to improve the stability of the forward and backward movement of the moving member 420, ribs extending in the front-rear direction can be provided on the moving member 420, and grooves extending in the front-rear direction and cooperating with the ribs are provided on the groove wall of the through groove. The moving member 420 is limited by the cooperation of the ribs and the grooves. Of course, the positions of the ribs and the grooves can be interchanged. In order to ensure the nail driving effect of the striking member 300, the striking member 300 does not contact the groove wall of the through groove to avoid the moving striking member 300 from being subjected to large friction.

[0092] Combined with Figure 6 As a preferred solution of this embodiment, the locking assembly 500 includes a locking block 510 and an elastic member 520 acting on the locking block 510. The elastic member 520 presses the locking block 510 against the striking member 300. The elastic member 520 is configured to be deformed when the locking block 510 is driven by the release and engagement structure 610 to disengage from the striking member 300, and to drive the locking block 510 to cooperate with the striking member 300 to lock the striking member 300 at the initial position when the striking member 300 moves backward to the initial position. Combined with Figure 4 Specifically, a sliding groove 125 for installing the locking block 510 is provided between the first seat plate 123 and the second seat plate 124. The locking block 510 is slidably disposed in the sliding groove 125. The sliding direction of the locking block 510 is preferably perpendicular to the movement direction of the moving member 420, so that the sliding distance for the locking block 510 to switch from the locked state to the unlocked state can be the shortest, which is beneficial to improving the effectiveness and stability of the moving member 420 driving the locking block 510 to switch from the locked state to the unlocked state through the release and engagement structure 610. The striking member 300 is provided with a locking groove 310 cooperating with the locking block 510. A part of the locking block 510 is inserted into the locking groove 310 and abuts against the rear groove wall of the locking groove 310 to lock the striking member 300 at the initial position. The elastic member 520 preferably adopts a locking spring 521. One end of the locking spring 521 abuts against the groove wall of the sliding groove 125 for positioning, and the other end of the locking spring 521 is inserted into a concave hole 511 on the locking block 510 to abut against the locking block 510. The locking spring 521 is always in a compressed state and applies a force to the locking block 510 to press the locking block 510 against the striking member 300. As an alternative solution of this embodiment, the elastic member can also adopt other elastic components that meet the requirements.

[0093] Combined with Figure 9a, the release cooperation structure 610 includes a release inclined surface provided on at least one of the moving member 420 and the locking block 510. During the process of the moving member 420 moving forward from the rear position to the front position, the locking block 510 is driven to slide through the release inclined surface so that the locking block 510 disengages from the striking member 300. Combine Figure 7 , as a preferred solution of this embodiment, a widened portion 422 is provided at the rear end of the moving member 420, the locking block 510 is provided with a tongue piece 512 that extends toward the moving member 420 while avoiding the striking member 300, the release cooperation structure 610 includes a first release inclined surface 611 provided at the front end of the widened portion 422 and a second release inclined surface 612 provided at the rear side of the tongue piece 512, and the first release inclined surface 611 and the second release inclined surface 612 are parallel to each other. During the process of the moving member 420 moving forward from the rear position to the front position, the locking block 510 is driven to slide in a direction away from the striking member 300 through the abutting cooperation of the first release inclined surface 611 and the second release inclined surface 612, so that the locking block 510 disengages from the striking member 300. By increasing the contact area between the moving member 420 and the locking block 510 through the two release inclined surfaces, it is beneficial to improve the smoothness of the moving member 420 driving the locking block 510 to switch from the locked state to the unlocked state. In order to ensure that the abutting cooperation of the first release inclined surface 611 and the second release inclined surface 612 can drive the locking block 510 to slide smoothly away from the striking member 300, the inclination angles of the two release inclined surfaces can be set to reasonable sizes such as 40°, 42°, 45°, 47°, 50°, 52°, 55°, 57°, 60°, etc. As an alternative solution of this embodiment, the sliding direction of the locking block 510 and the moving direction of the moving member 420 can also be in a non-perpendicular setting relationship. As an alternative solution of this embodiment, the release cooperation structure 610 can also be provided with only the first release inclined surface 611 or only the second release inclined surface 612.

[0094] Combine Figure 3 , Figure 7, as a preferred solution of this embodiment, the locking assembly 500 further includes a pressure rod 530 linked to the locking block 510. The nail gun includes a control module 810 and a position switch 820 positioned within the fixed seat assembly 120. The position switch 820 is signal-connected to the control module 810, and the motor 410 is controlled by the control module 810. The locking block 510 switched from the unlocking state to the locking state triggers the position switch 820 by the pressure rod 530, and the locking block 510 switched from the locking state to the unlocking state releases the position switch 820 by the pressure rod 530. When the moving member 420 drives the striking member 300 and the piston 220 to reset backward to the initial position, the locking block 510 switches to the locking state and triggers the position switch 820 by the pressure rod 530. The control module 810 determines that the striking member 300 has reset to the initial position according to the trigger signal of the position switch 820, and the next nailing cycle can proceed smoothly. If the position switch 820 is in a non-triggered state when starting the next nailing cycle, the control module 810 can first command the motor 410 to drive the moving member 420 to move backward when starting the next nailing cycle. The moving member 420 moving backward drives the striking member 300 and the piston 220 to reset to the initial position, so that the position switch 820 can be triggered by the pressure rod 530. After the position switch 820 is triggered, the nailing cycle continues to be executed. Through the cooperation of the position switch 820 and the pressure rod 530, it is ensured that both the striking member 300 and the piston 220 are in the initial position when starting the nailing cycle, and the movement stroke of the striking member 300 during nailing is ensured, which is beneficial to ensuring the nailing effect. In this embodiment, the position switch 820 is positioned within the cavity formed by the enclosure of the second seat plate 124 and the seat cover 122, and the pressure rod 530 extends into this cavity, so that the pressure rod 530 following the sliding of the locking block 510 can trigger or release the position switch 820.

[0095] Combined Figure 7 、 Figure 8 , in this embodiment, since the locking block 510 is still in contact with the striking member 300 when it disengages from the striking member 300, in order to reduce the friction between the locking block 510 and the striking member 300, the locking block 510 is provided with an open slot 513 on the side facing the striking member 300. One end of the pressure rod 530 extends into the open slot 513 of the locking block 510. A rolling member 540 sleeved outside the pressure rod 530 is provided in the open slot 513. The other end of the pressure rod 530 extends out of the locking block 510 and corresponds to the position switch 820. The locking block 510 in the unlocking state is in contact with the striking member 300 through the rolling member 540 under the pressing action of the locking spring 521. The rolling friction between the rolling member 540 and the striking member 300 is used to replace the sliding friction between the slider 510 and the striking member 300, greatly reducing the frictional force received by the striking member 300 moving forward by the slider 510. As an alternative solution of this embodiment, the rolling member 540 can adopt components such as bearings and rollers.

[0096] When the striking member 300 moves backward to the initial position, the locking spring 521 presses the locking block 510 against the striking member 300, causing the locking block 510 to slide into engagement with the locking groove 310 to lock the striking member 300 in the locked state at the initial position. The locking block 510 that slides to the locked state presses the button of the position switch 820 by the pressure lever 530, and the position switch 820 is triggered. The control module 810 determines based on the trigger signal of the position switch 820 that the piston 220 and the striking member 300 have successfully reset to the initial position. When the nail gun starts the next nailing cycle, the nailing cycle can proceed normally. After one nailing cycle ends, if the piston 220 and the striking member 300 do not move backward and reset to the initial position, the locking block 510 cannot switch to the locked state, and the pressure lever 530 cannot press the button of the position switch 820 to trigger the position switch 820. Based on this, the control module 810 determines that the striking member 300 and the piston 220 have not retracted in place. When the nail gun starts the next nailing cycle, the control module 810 first commands the motor 410 to drive the moving member 420 to move backward through the gear 430. The moving member 420 moving backward drives the piston 220 and the striking member 300 to move backward synchronously through the transmission cooperation structure 620. When the position switch 820 is triggered, it indicates that the piston 220 and the striking member 300 have retracted in place, and then the nailing cycle is carried out. As an alternative solution of this embodiment, the position switch 820 can be a micro switch or other switches that can automatically reset after being released.

[0097] In order to control the forward and backward movement stroke of the moving member 420, as a preferred solution of this embodiment, a magnet 440 is provided on the moving member 420, and two magnetic induction elements 830 that are positioned and distributed at intervals in the front and back are provided on the fixed seat assembly 120. The two magnetic induction elements 830 are signal-connected to the control module 810. One magnetic induction element 830 is arranged corresponding to the moving member 420 moving forward to the front position, and the other magnetic induction element 830 is arranged corresponding to the moving member 420 moving backward to the rear position. When the moving member 420 moves forward under the drive of the motor 410 and the front magnetic induction element is triggered by the magnet 440, it indicates that the moving member 420 has moved forward to the front position. The control module 810 determines based on the trigger signal of the front magnetic induction element that the moving member 420 has moved forward in place, and the control module 810 commands the motor 410 to stop driving. When the moving member 420 moves backward under the drive of the motor 410 and the rear magnetic induction element is triggered by the magnet 440, it indicates that the moving member 420 has moved backward to the rear position. The control module 810 determines based on the trigger signal of the rear magnetic induction element that the moving member 420 has moved backward in place, and the control module 810 commands the motor 410 to stop driving. As an alternative solution of this embodiment, the magnetic induction element 830 can be an electronic component such as a Hall element or a reed switch that can switch the output signal according to the magnetic field intensity.

[0098] Combined Figure 9b, As a preferred solution of this embodiment, the transmission and cooperation structure 620 includes a front pushing surface 621 provided on the moving member 420 and a rear pushing surface 622 provided on the striking member 300. The moving member 420 moving backward drives the striking member 300 and the piston 220 to move backward to the initial position through the abutting cooperation between the front pushing surface 621 and the rear pushing surface 622. In this embodiment, the rear end surface of the moving member 420 constitutes the front pushing surface 621, and the striking member 300 is arranged with a thinner front part and a thicker rear part and forms a stepped surface, which constitutes the rear pushing surface 622. The front pushing surface 621 and the rear pushing surface 622 are parallel to each other.

[0099] Combined with Figure 9a , in the state where the nail gun is not started, the locking block 510 is in a locked state under the pre-tightening force of the locking spring 521. The locking block 510 cooperates with the locking groove 310 on the striking member 300 to limit the piston 220 and the striking member 300 to the initial position, and the moving member 420 is in the rear position.

[0100] Combined with Figure 9b , when the nail gun starts a nailing cycle, the control module 810 commands the motor 410 to first drive the moving member 420 to move forward. During the process of the moving member 420 moving forward from the rear position, the locking block 510 is forced by the abutting cooperation between the first release inclined surface 611 and the second release inclined surface 612 to slide away from the striking member 300 against the pre-tightening force of the locking spring 521.

[0101] When the front magnetic induction element of the moving member 420 is triggered by the magnet 440 during the forward movement of the moving member 420, the moving member 420 moves to the front position, and the control module 810 commands the motor 410 to stop driving. The moving member 420 may continue to move forward a short distance under the action of inertia. At the moment when the moving member 420 moves to the front position, the locking block 510 disengages from the locking groove 310 on the striking member 300 and the locking spring 521 is compressed at this time, releasing the locking of the locking block 510 on the striking member 300 and the piston 220. Combined with Figure 9c , at the moment when the locking block 510 disengages from the striking member 300, the piston 220 drives the striking member 300 to move forward rapidly under the pressure of the high-pressure gas in the energy storage chamber 211. The rapidly moving striking member 300 drives the nails sent out by the nail feeding assembly 710 into objects such as wood to achieve nailing. When the piston 220 moves forward to abut against the shock absorber head 260, the piston 220 and the striking member 300 move forward to the nailing position. In order to prevent the striking member 300 from hitting the moving member 420, the stroke of the moving member 420 moving from the rear position to the front position is slightly greater than the stroke of the striking member 300 moving from the initial position to the nailing position. When the moving member 420 is in the front position and the striking member 300 is in the nailing position, there is a certain distance between the front pushing surface 621 and the rear pushing surface 622.

[0102] Combined with Figure 9d 、Figure 9e After the nailing is completed, the control module 810 commands the motor 410 to drive the moving member 420 to move backward from the front position. The moving member 420 moving backward drives the striking member 300 and the piston 220 to move backward through the abutting cooperation between the front pushing surface 621 and the rear pushing surface 622. The piston 220 moving backward reduces the volume of the energy storage chamber 211, and the gas in the energy storage chamber 211 is compressed.

[0103] Combined with Figure 9f When the rear magnetic induction element is triggered by the magnet 440, the control module 810 determines that the moving member 420 has moved to the rear position according to the trigger signal of the rear magnetic induction element. The control module 810 commands the motor 410 to stop driving. At this time, the piston 220 and the striking member 300 move backward to the initial position. At the moment when the striking member 300 moves to the initial position, the restored deformation locking spring 521 drives the lock block 510 to slide towards the striking member 300 so that the lock block 510 cooperates with the lock groove 310 to lock the striking member 300 at the initial position. The lock block 510 switches to the locked state and makes the pressure lever 530 trigger the position switch 820. The control module 810 determines that the striking member 300 and the piston 220 have been reset to the initial position according to the trigger signal of the position switch 820. When starting the next nailing cycle, the nailing cycle can proceed normally. If the lock block 510 does not smoothly switch to the locked state when the motor 410 stops driving the moving member 420 and the pressure lever 530 cannot trigger the position switch 820, when starting the next nailing cycle, the control module 810 first commands the motor 410 to drive the moving member 420 to move backward until the lock block 510 smoothly switches to the locked state and the pressure lever 530 triggers the position switch 820, and then the control module 810 commands the motor 410 to drive the moving member 420 to move forward to start the next nailing cycle.

[0104] The electrical components of the nail gun are electrically connected or signal-connected to the control module 810. A trigger 130 is provided on the handle 110, and the user can start the nailing cycle through the trigger 130.

[0105] As a preferred solution of this embodiment, when the moving member 420 moves forward until the gear 430 meshes with the transmission tooth 421 at the rearmost end of the moving member 420, the moving member 420 moves to the front position; when the moving member 420 moves backward until the gear 430 meshes with the transmission tooth 421 at the foremost end of the moving member 420, the moving member 420 moves to the rear position.

[0106] As an alternative solution of this embodiment, the nail gun can be powered by a battery pack or by connecting a wire to the mains power supply.

[0107] Embodiment Two

[0108] Combined with Figure 10 、 Figure 11 、Figure 12 , Figure 13 , in this embodiment, the locking block 510 is swingably arranged. The locking block 510 can swing away from the striking member 300 to switch to the unlocked state of disengaging from the striking member 300, and the locking block 510 can also swing towards the striking member 300 to switch to the locking state of cooperating with the striking member 300.

[0109] Specifically, the locking block 510 is swingably arranged through a pin rod 550. The locking block 510 is provided with two lug ears 514 distributed at intervals at the end cooperating with the striking member 300. The locking assembly 500 further includes a locking rod 560 mounted on the two lug ears 514. The axial direction of the locking rod 560 is substantially perpendicular to the length direction of the striking member 300. Combining Figure 12 , when the locking block 510 drives the locking rod 560 to swing in the direction shown by ω against the pre-tightening force of the locking spring 521, the locking rod 560 disengages from the locking groove 310, so that the locking block 510 switches to the unlocked state of releasing the striking member 300, so that the striking member 300 can move forward to drive nails. When the striking member 300 moves backward to the initial position, the locking spring 521 that restores deformation drives the locking block 510 to drive the locking rod 560 to swing in the direction shown by ω', so that the locking rod 560 enters the locking groove 310 and abuts against the groove wall of the locking groove 310 front and back, so that the locking block 510 switches to the locking state of locking the striking member 300 at the initial position. As an alternative solution of this embodiment, the locking block 510 can swing back and forth in the left-right direction or can also swing back and forth in the head-tail direction. As a preferred solution of this example, the locking rod 560 is rotatably mounted on the two lug ears 514.

[0110] The locking block 510 is provided with a convex column 515 protruding away from the striking member 300. One end of the locking spring 521 is sleeved outside the convex column 515 and abuts against the locking block 510, and the other end of the locking spring 521 contacts the fixed seat assembly to achieve positioning. The locking spring 521 is in a compressed state and presses the locking block 510 against the striking member 300, so that the locking block 510 can drive the locking rod 560 to enter the locking groove 310 in a timely manner.

[0111] In this embodiment, the pressing rod 530 for triggering the position switch 820 can be formed by an extension section of the locking rod 560, or the pressing rod 530 can be independently arranged relative to the locking rod 560 and fixed on the locking block 510.

[0112] Combining Figure 14a , in the state where the nail gun is not started, the locking block 510 is in the locking state under the pre-tightening force of the locking spring 521. The locking rod 560 cooperates with the locking groove 310 on the striking member 300 to limit the piston 220 and the striking member 300 at the initial position, and the moving member 420 is in the rear position.

[0113] Combining Figure 14b , 14c, when the nail gun starts the nailing cycle, the control module commands the motor to first drive the moving member 420 to move forward. During the process of the moving member 420 moving forward from the rear position, the locking block 510 is forced by the abutting cooperation between the first release inclined surface 611 and the locking lever 560 to overcome the pre-tightening force of the locking spring 521, driving the locking block 560 to swing away from the striking member 300. When the moving member 420 moves forward to the front position, the control module commands the motor to stop driving. The moving member may continue to move forward a short distance under the action of inertia. At the moment when the moving member 420 moves to the front position, the locking lever 560 disengages from the locking groove 310 on the striking member 300 and the locking spring 521 is compressed at this time, releasing the locking of the locking block 510 on the striking member 300 and the piston 220. Combined with Figure 14d , at the moment when the locking lever 560 disengages from the locking groove 310, the piston 220 drives the striking member 300 to move forward rapidly under the pressure of the energy storage medium. The rapidly moving striking member 300 drives the nail sent by the nail feeding assembly into an object such as wood, realizing nailing. When the piston 220 moves forward to abut against the shock-absorbing head, the piston 220 and the striking member 300 move forward to the nailing position. To prevent the striking member 300 from hitting the moving member 420, the stroke of the moving member 420 moving from the rear position to the front position is slightly greater than the stroke of the striking member 300 moving from the initial position to the nailing position. When the moving member 420 is in the front position and the striking member 300 is in the nailing position, there is a certain distance between the front pushing surface 621 and the rear pushing surface 622.

[0114] Combined with Figure 14e , after nailing is completed, the control module commands the motor to drive the moving member 420 to move backward from the front position. The moving member 420 moving backward drives the striking member 300 and the piston 220 to move backward through the abutting cooperation between the front pushing surface 621 and the rear pushing surface 622. The piston 220 moving backward reduces the volume of the energy storage chamber, and the energy storage medium is compressed. Combined with Figure 14f, when the moving member 420 moves to the rear position, the control module commands the motor to stop driving. At this time, the piston 220 and the striking member 300 move backward to the initial position. At the moment when the striking member 300 moves to the initial position, the restored locking spring 521 drives the locking block 510 to drive the locking rod 560 to swing towards the striking member 300, so that the locking rod 560 cooperates with the locking groove 310 to lock the striking member 300 at the initial position. The locking block 510 switches to the locked state and makes the pressing rod 530 trigger the position switch 820. The control module determines that the striking member 300 and the piston 220 are reset to the initial position according to the trigger signal of the position switch 820. When starting the next nailing cycle, the nailing cycle can proceed normally. If the locking block 510 does not smoothly switch to the locked state when the motor stops driving the moving member 420 and the pressing rod 530 cannot trigger the position switch 820, when starting the next nailing cycle, the control module first commands the motor to drive the moving member 420 backward until the locking block 510 smoothly switches to the locked state and the pressing rod 530 triggers the position switch 820, and then the control module commands the motor to drive the moving member 420 forward to start the next nailing cycle.

[0115] The other content of the second embodiment is the same as that of the first embodiment and will not be elaborated here.

[0116] Embodiment Three

[0117] Combined with Figure 15 、 Figure 16 、 Figure 17 , in this embodiment, the locking block 510 is swingably arranged. The locking block 510 can swing away from the striking member 300 to switch to the unlocked state of disengaging from the striking member 300, and the locking block 510 can also swing towards the striking member 300 to switch to the locked state of cooperating with the striking member 300.

[0118] Specifically, the locking block 510 is swingably arranged through the hinge rod 570. The hinge rod 570 is arranged at the rear end of the locking block 510. A convex block 516 protruding towards the striking member 300 and capable of entering the locking groove 310 is arranged at the front end of the locking block 510. Combined with Figure 16 , when the locking block 510 swings in the direction shown by γ against the pre-tightening force of the locking spring 521, the convex block 516 disengages from the locking groove 310, so that the locking block 510 switches to the unlocked state of releasing the striking member 300, so that the striking member 300 can move forward to drive a nail. When the striking member 300 moves backward to the initial position, the restored locking spring 521 drives the locking block 510 to swing in the direction shown by γ', so that the convex block 516 enters the locking groove 310 and abuts against the front and rear walls of the locking groove 310, so that the locking block 510 switches to the locked state of locking the striking member 300 at the initial position. As an optional solution of this embodiment, the locking block 510 can swing back and forth in the left-right direction or back and forth in the head-tail direction.

[0119] The lock block 510 is provided with a boss 517 protruding towards the moving member 420. The second release inclined surface 612 is arranged at the rear side of the boss 517 and faces the widened portion 422, and the first release inclined surface 611 is arranged at the front end of the widened portion 422 and faces the boss 517. The first release inclined surface 611 and the second release inclined surface 612 are preferably arranged parallel to each other.

[0120] The pressing rod 530 is arranged on the side of the lock block 510 facing the striking member 300. The lock block 510 that swings towards the striking member 300 can trigger the position switch 820 by the pressing rod 530.

[0121] Combined Figure 18a , in the state where the nail gun is not started, the lock block 510 is in a locked state under the pre-tightening force of the locking spring 521. The convex block 516 cooperates with the lock groove 310 on the striking member 300 to limit the piston 220 and the striking member 300 to the initial position, and the moving member 420 is in the rear position.

[0122] Combined Figure 18b , 18c , when the nail gun starts the nailing cycle, the control module commands the motor to first drive the moving member 420 to move forward. During the process of the moving member 420 moving forward from the rear position, the lock block 510 is forced by the contact cooperation between the first release inclined surface 611 and the second release inclined surface 612 to swing away from the striking member 300 against the pre-tightening force of the locking spring 521. When the moving member 420 moves forward to the front position, the control module commands the motor to stop driving. The moving member may continue to move forward a short distance under the action of inertia. At the moment when the moving member 420 moves to the front position, the convex block 516 disengages from the lock groove 310 on the striking member 300 and the locking spring 521 is compressed at this time, releasing the locking of the lock block 510 on the striking member 300 and the piston 220. Combined Figure 18d , at the moment when the convex block 516 disengages from the lock groove 310, the piston 220 drives the striking member 300 to move forward quickly under the pressure of the energy storage medium. The quickly moving striking member 300 drives the nail sent by the nail feeding assembly into an object such as wood to achieve nailing. When the piston 220 moves forward to contact the shock-absorbing head, the piston 220 and the striking member 300 move forward to the nailing position. In order to prevent the striking member 300 from hitting the moving member 420, the stroke of the moving member 420 moving from the rear position to the front position is slightly larger than the stroke of the striking member 300 moving from the initial position to the nailing position. When the moving member 420 is in the front position and the striking member 300 is in the nailing position, there is a certain distance between the front pushing surface 621 and the rear pushing surface 622.

[0123] Combined Figure 18e, after the nailing is completed, the control module commands the motor to drive the moving member 420 to move backward from the forward position. The moving member 420 moving backward drives the striking member 300 and the piston 220 to move backward through the abutting cooperation between the front pushing surface 621 and the rear pushing surface 622. The piston 220 moving backward reduces the volume of the energy storage cavity, and the energy storage medium is compressed. Combined with Figure 18f , when the moving member 420 moves to the rear position, the control module commands the motor to stop driving. At this time, the piston 220 and the striking member 300 move backward to the initial position. At the moment when the striking member 300 moves to the initial position, the locking spring 521 that has restored its deformation drives the lock block 510 to swing towards the striking member 300 so that the convex block 516 cooperates with the locking groove 310 to lock the striking member 300 in the initial position. The lock block 510 switches to the locked state and makes the pressure lever 530 trigger the position switch 820. The control module judges that the striking member 300 and the piston 220 return to the initial position according to the trigger signal of the position switch 820. When starting the next nailing cycle, the nailing cycle can proceed normally. If the lock block 510 does not successfully switch to the locked state when the motor stops driving the moving member 420 and the pressure lever 530 cannot trigger the position switch 820, when starting the next nailing cycle, the control module first commands the motor to drive the moving member 420 to move backward until the lock block 510 successfully switches to the locked state and the pressure lever 530 triggers the position switch 820, and then the control module commands the motor to drive the moving member 420 to move forward to start the next nailing cycle.

[0124] In this embodiment, the lock block 510 in the unlocked state is substantially not in contact with the striking member 300.

[0125] The other content of the third embodiment is the same as that of the first embodiment, and will not be elaborated here.

[0126] In addition to the above preferred embodiments, the present invention has other implementation manners. Those skilled in the art can make various changes and deformations according to the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined in the claims of the present invention.

Claims

1. Staple gun, comprising: A housing having a handle; An energy storage assembly disposed within the housing and including a cylinder structure having an energy storage chamber and a piston movably disposed within the cylinder structure, the movement of the piston causing a change in the volume of the energy storage chamber; A striking member connected to the piston, the striking member and the piston having an initial position and a nailing position, the striking member moving forward from the initial position to the nailing position under the drive of the piston; A drive assembly including a motor and a moving member, the motor driving the moving member to move back and forth between a front position and a rear position; Characterized in that the staple gun further includes a locking assembly having a locked state in which the locking assembly cooperates with the striking member to lock the striking member in the initial position and an unlocked state in which the locking assembly disengages from the striking member; A release cooperation structure is provided between the moving member and the locking assembly, and the release cooperation structure drives the locking assembly to switch from the locked state to the unlocked state during the process of the moving member moving forward from the rear position to the front position; A separable transmission cooperation structure is provided between the moving member and the striking member, and the moving member moving backward drives the striking member and the piston to move backward from the nailing position to the initial position through the transmission cooperation structure, so that the piston compresses the energy storage medium in the energy storage chamber to complete energy storage.

2. The nail gun according to claim 1, wherein The locking assembly includes a locking block and an elastic member acting on the locking block, the elastic member pressing the locking block against the striking member, and the elastic member is configured to be deformed under force when the locking block is driven by the release cooperation structure to disengage from the striking member, and to drive the locking block to cooperate with the striking member to lock the striking member in the initial position when the striking member moves backward to the initial position.

3. The nail gun according to claim 2, wherein The elastic member is a locking spring in a compressed state, one end of the locking spring is fixedly arranged, and the other end abuts against the locking block.

4. The nail gun according to claim 2, wherein The release cooperation structure includes a release inclined surface provided on at least one of the moving member and the locking block, and the moving member drives the locking block to move through the release inclined surface during the process of moving forward from the rear position to the front position so that the locking block disengages from the striking member.

5. The nail gun according to claim 4, characterized in that, The locking block is slidably arranged; or, the locking block is swingably arranged.

6. The nail gun according to claim 2, characterized in that, The striking member is provided with a locking groove cooperating with the locking block, and a part of the locking block is inserted into the locking groove to lock the striking member in the initial position.

7. The nail gun according to claim 2, characterized in that, The locking assembly further includes a pressure rod linked to the locking block, the staple gun includes a control module and a position switch arranged in a fixed position, the position switch is signal-connected to the control module, and the motor is controlled by the control module. The locking block switching from the unlocked state to the locked state causes the pressure rod to trigger the position switch, and the locking block switching from the locked state to the unlocked state causes the pressure rod to release the position switch.

8. The nail gun according to claim 7, characterized in that, A magnet is provided on the moving member, and the staple gun is provided with two magnetic induction elements arranged in a fixed position and spaced apart front and rear. The two magnetic induction elements are signal-connected to the control module. One magnetic induction element is arranged corresponding to the moving member moving forward to the front position, and the other magnetic induction element is arranged corresponding to the moving member moving backward to the rear position.

9. The nail gun according to claim 1, characterized in that, The transmission cooperation structure includes a front pushing surface provided on the moving member and a rear pushing surface provided on the striking member, and the moving member moving backward drives the striking member to move backward to the initial position through the abutting cooperation between the front pushing surface and the rear pushing surface.

10. The nail gun according to claim 1, characterized in that, The driving component includes a gear driven by a motor. A plurality of transmission teeth are arranged on the moving part at intervals in the front-rear direction, and the transmission teeth are engaged with the gear. The motor drives the moving part to move back and forth through the gear.

Images