An electric nail gun

Abstract

This invention discloses an electric nail gun, relating to the field of nail gun technology, comprising: a guide cylinder, a vacuum cylinder, a drive device, and a magazine. The guide cylinder is closed at its rear end and open at its front end. An elastic element extending in a front-rear direction is disposed inside the guide cylinder, and a firing pin extending in a front-rear direction is connected to the front end of the elastic element. The firing pin has an energy storage state and a release state. At least a portion of the guide cylinder is located inside the vacuum cylinder, with the front end of the guide cylinder located inside the vacuum cylinder. A cylinder piston is slidably disposed inside the vacuum cylinder in a front-rear direction, and the cylinder piston is slidably sleeved outside the guide cylinder. When the cylinder piston moves inside the vacuum cylinder, it can drive the firing pin to move in the opposite direction. The drive device can drive the cylinder piston to move in a forward direction to create a negative pressure state inside the vacuum cylinder. The drive device can also release the cylinder piston so that the cylinder piston moves backward under the attraction of the negative pressure. This invention has a more compact structure, thereby reducing the space occupied and improving the operating comfort.

Description

Technical Field

[0001] This invention relates to the field of nail gun technology, and in particular to an electric nail gun. Background Technology

[0002] An electric nail gun is an electrically powered nail gun used to drive nails into various materials, such as wood, cement walls, and concrete. Electric nail guns typically consist of a nail-driving mechanism and a magazine. Current electric nail guns generally suffer from a bulky design, resulting in large space requirements and uncomfortable operation. Summary of the Invention

[0003] The purpose of this invention is to provide an electric nail gun that solves the problems existing in the prior art, with a more compact structure to reduce space occupation and improve operating comfort.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides an electric nail gun, with the nail firing direction being forward and the opposite direction being backward. It includes: a guide cylinder, a vacuum cylinder, a drive device, and a magazine. The guide cylinder is closed at its rear end and open at its front end. An elastic element extending in the forward-backward direction is disposed inside the guide cylinder. A firing pin extending in the forward-backward direction is connected to the front end of the elastic element. The firing pin has a stored state and a released state. In the stored state, the firing pin moves backward a certain distance relative to the firing pin in the released state, compressing the elastic element. The vacuum cylinder is closed at its rear end and open at its front end. At least a portion of the guide cylinder is located inside the vacuum cylinder, with the front end of the guide cylinder located inside the vacuum cylinder. A cylinder piston is slidably disposed inside the vacuum cylinder along the front-to-back direction, and the cylinder piston is slidably sleeved outside the guide cylinder; the cylinder piston and the firing pin are connected in a driving connection, and when the cylinder piston moves inside the vacuum cylinder, it can drive the firing pin to move in the opposite direction; the driving device can drive the cylinder piston to move in the forward direction so that the vacuum cylinder is in a negative pressure state; the driving device can also release the cylinder piston so that the cylinder piston moves backward under the attraction of negative pressure; the magazine is constructed with a nail feed port, and when the firing pin moves from the energy storage state to the release state, the front end of the firing pin moves along a first path, and the nail feed port is located on the first path.

[0006] In some embodiments, the device further includes a transmission rack, a first transmission gear, a second transmission gear, and a drive gear; the driving device includes a drive motor connected to the drive gear; the transmission rack is located in front of the cylinder piston, and the rear end of the transmission rack is fixedly connected to the cylinder piston; the transmission rack has two rows of meshing structures extending in the front-rear direction; one row of meshing structures meshes with the drive gear to enable the drive motor to drive the transmission rack to move; the other row of meshing structures meshes with the first transmission gear; the first transmission gear and the second transmission gear are coaxial and fixedly connected; the striker has a plurality of tooth grooves arranged sequentially along its own length direction; the tooth grooves mesh with the teeth on the second transmission gear; when the cylinder piston moves inside the vacuum cylinder, the transmission rack, the first transmission gear, the second transmission gear, and the tooth grooves drive the striker to move in the opposite direction.

[0007] In some embodiments, the transmission rack is a strip-shaped structure, and a plurality of first tooth-shaped structures are sequentially constructed along the length direction on one side edge of the transmission rack in the width direction to form a row of the meshing structures. A plurality of grooves are sequentially opened along the length direction on one side surface of the transmission rack in the thickness direction, and the remaining material between any two adjacent grooves forms a second tooth-shaped structure to form another row of the meshing structures.

[0008] In some embodiments, two second transmission gears are provided, and tooth grooves are constructed on both sides of the firing pin in the width direction, with the width direction perpendicular to the front-back direction. The teeth on the two second transmission gears respectively mesh with the tooth grooves on both sides of the firing pin in the width direction.

[0009] In some embodiments, the drive gear is a missing gear.

[0010] In some embodiments, the rear end of the guide cylinder extends from the rear end of the vacuum cylinder. The rear end of the guide cylinder has a threaded hole that extends along the front-rear direction and passes through the rear end plate of the guide cylinder. A screw is threadedly connected to the threaded hole. The two ends of the screw extend from the two ends of the threaded hole, respectively. A nut is threadedly connected to the screw extending from the front end. An adjusting cap is fixedly connected to the screw extending from the rear end. An adjusting seat is provided at the rear end of the inner cavity of the guide cylinder. The front end face of the adjusting seat abuts against the rear end of the elastic element. The front end face of the screw or the front end face of the nut abuts against the rear end face of the adjusting seat. Adjusting the screw's screwing degree can adjust the front-rear position of the adjusting seat.

[0011] In some embodiments, a one-way valve is provided at the rear end of the vacuum cylinder, the one-way valve allowing only the gas inside the vacuum cylinder to flow out through the one-way valve.

[0012] In some embodiments, both the vacuum cylinder and the guide cylinder are cylindrical structures.

[0013] In some embodiments, a locking device is also included. The top of the magazine is provided with a top plate, the nail feed port is disposed on the top plate, and the top plate also has a nail dispensing channel disposed in front of the nail feed port and connected to the nail feed port. A cover plate is provided on the top plate. The cover plate is flip-up and has a latched state and an open state. In the latched state, the cover plate covers the nail feed port and the nail dispensing channel on the top plate. The locking device can lock and fix the cover plate and the top plate in the latched state. In the open state, the cover plate exposes the nail feed port and the nail dispensing channel on the top plate.

[0014] The present invention achieves the following technical effects compared to the prior art:

[0015] In the electric nail gun provided by this invention, the guide cylinder and the elastic element are arranged inside the vacuum cylinder. The guide cylinder not only provides guidance for the cylinder piston, but more importantly, it is equivalent to the impact cylinder in the prior art. The guide cylinder is separated into a separate space inside the vacuum cylinder to accommodate the elastic element. Compared with the prior art, which arranges the vacuum cylinder and the impact cylinder side by side, in order to achieve the same performance, the electric nail gun provided by this invention, which integrates the guide cylinder inside the vacuum cylinder, will inevitably have a more compact structure, thereby reducing the space occupied and improving the operating comfort.

[0016] Furthermore, the invention employs a unique transmission rack and pin structure to reduce weight, thereby reducing energy consumption and improving operational comfort. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the electric nail gun provided by the present invention;

[0019] Figure 2 for Figure 1 A sectional view;

[0020] Figure 3 for Figure 1 Internal structure diagram;

[0021] Figure 4 for Figure 3 Schematic diagram of the middle section;

[0022] Figure 5 for Figure 3 A schematic diagram of the structure of the adjusting cap, elastic element, firing pin piston and firing pin;

[0023] Figure 6 This is a schematic diagram of the structure of the transmission rack, the first transmission gear, the second transmission gear, the drive gear, and the striker.

[0024] Figure 7 This is a magnified view of a portion of the drive unit;

[0025] Figure 8 for Figure 3 A magnified view of a section at point B in the middle;

[0026] Figure 9 for Figure 2 A magnified view of a section at point A in the middle;

[0027] Figure 10 This is a schematic diagram of the transmission rack structure;

[0028] Figure 11 This is a schematic diagram of the firing pin structure;

[0029] In the diagram: 1-Drive device; 2-Vacuum cylinder; 3-Clip; 4-Adjusting cap; 5-Locking device; 6-Transmission rack; 7-First transmission gear; 8-Second transmission gear; 9-Elastic element; 10-Drive gear; 11-One-way valve; 12-Cylinder piston; 13-Firing pin; 14-Firing pin piston; 15-Groove; 16-Guide cylinder; 17-Cover plate; 18-Top plate; 19-Screw; 20-Adjusting seat; 21-Guide cylinder rear end plate; 23-Nut; 24-Nail feed port; 25-Nail dispensing channel; 26-First tooth structure; 27-Second tooth structure; 28-Meshing structure; 29-Groove; 30-Hanging ring; 31-Wrench; 32-Hook. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] The following is combined with Figures 1 to 11 The following describes embodiments of the present invention.

[0033] This invention provides an electric nail gun, such as Figure 1 As shown, the nail ejection direction is forward, and the opposite direction is backward. The system includes: a guide cylinder 16, a vacuum cylinder 2, a drive device 1, and a magazine 3. The rear end of the guide cylinder 16 is closed, and the front end is open. An elastic element 9 extending in the front-rear direction is disposed inside the guide cylinder 16. A firing pin 13 extending in the front-rear direction is connected to the front end of the elastic element 9. The firing pin 13 has an energy storage state and a release state. In the energy storage state, the firing pin 13 moves backward a certain distance relative to the firing pin 13 in the release state, compressing the elastic element 9. The rear end of the vacuum cylinder 2 is closed, and the front end is open. At least part of the guide cylinder 16 is located inside the vacuum cylinder 2, and the front end of the guide cylinder 16 is located inside the vacuum cylinder 2. A cylinder piston 12 is slidably disposed inside cylinder 2 along the front-back direction, and the cylinder piston 12 is slidably sleeved outside guide cylinder 16; the cylinder piston 12 and the firing pin 13 are connected by transmission, and when the cylinder piston 12 moves inside vacuum cylinder 2, it can drive the firing pin 13 to move in the opposite direction; the drive device 1 can drive the cylinder piston 12 to move in the forward direction so that the vacuum cylinder 2 is in a negative pressure state; the drive device 1 can also release the cylinder piston 12 so that the cylinder piston 12 moves backward under the attraction of negative pressure; the magazine 3 is constructed with a nail feeding port 24, and when the firing pin 13 moves from the energy storage state to the release state, the front end of the firing pin 13 moves along the first path, and the nail feeding port 24 is located on the first path.

[0034] In use, it operates on the same principle as an electric nail gun in related technologies. Initially, the firing pin 13 is in the released state, and the cylinder piston 12 is at the rear end of the vacuum cylinder 2. When there is a need to drive nails, the drive device 1 drives the cylinder piston 12 to move forward so that the vacuum cylinder 2 is under negative pressure. When the cylinder piston 12 moves in the vacuum cylinder 2, it can drive the firing pin 13 to move in the opposite direction and reach the energy storage state. During the movement, the firing pin 13 compresses the elastic element 9. Subsequently, the drive device 1 releases the cylinder piston 12 so that the cylinder piston 12 moves backward under the negative pressure attraction. The firing pin 13 moves forward under the dual drive of the cylinder piston 12 and the rebound force of the elastic element 9, and drives the nail at the nail feed port 24 to drive out the nail, thus realizing the nail driving process.

[0035] In the electric nail gun provided by this invention, the guide cylinder 16 and the elastic element 9 are disposed inside the vacuum cylinder 2. The guide cylinder 16 not only provides guidance for the cylinder piston 12, but more importantly, the guide cylinder 16 is equivalent to the impact cylinder in the prior art. The vacuum cylinder 2 is separated into a separate space to accommodate the elastic element 9. Compared with the prior art scheme in which the vacuum cylinder 2 and the impact cylinder are arranged side by side, in order to achieve the same performance, the electric nail gun provided by this invention, which integrates the guide cylinder 16 inside the vacuum cylinder 2, will inevitably have a more compact structure, thereby reducing the space occupied and improving the operating comfort. In other words, compared with the previous electric nail guns, the electric nail gun provided by this application has a high space utilization rate and a compact structure, thereby reducing the space occupied by the equipment.

[0036] In some embodiments, the present invention further includes a transmission rack 6, a first transmission gear 7, a second transmission gear 8, and a drive gear 10; the drive device 1 includes a drive motor, the drive motor and the drive gear 10 are connected, the transmission rack 6 is located in front of the cylinder piston 12, the rear end of the transmission rack 6 is fixedly connected to the cylinder piston 12, the transmission rack 6 has two rows of meshing structures 28 extending in the front-rear direction, one row of meshing structures 28 meshes with the drive gear 10 to realize the drive motor driving the transmission rack 6 to move, the other row of meshing structures 28 meshes with the first transmission gear 7, the first transmission gear 7 and the second transmission gear 8 are coaxial and fixedly connected, the striker 13 is constructed with a plurality of tooth grooves 15 arranged sequentially along its own length direction, the tooth grooves 15 and the teeth on the second transmission gear 8 mesh, when the cylinder piston 12 moves in the vacuum cylinder 2, the transmission rack 6, the first transmission gear 7 and the second transmission gear 8 and the tooth grooves 15 drive the striker 13 to move in the opposite direction.

[0037] In this embodiment, the transmission rack 6, the first transmission gear 7, the second transmission gear 8, and the drive gear 10 are used as transmission components to enable the drive motor to drive the cylinder piston 12 to move forward and store energy.

[0038] Specifically, in this embodiment, the drive motor drives the transmission rack 6 to move via the drive gear 10 → the transmission rack 6 drives the first transmission gear 7 to rotate → the first transmission gear 7 drives the second transmission gear 8 to rotate synchronously → the second transmission gear 8 drives the striker 13 to move. Through the above transmission process, the purpose of the transmission rack 6 driving the striker 13 to move in opposite directions is achieved.

[0039] In some embodiments, the front end of the elastic member 9 is provided with a firing pin piston 14, the front end of the firing pin piston 14 is fixedly connected to the rear end of the firing pin 13, the rear end of the firing pin piston 14 abuts against the front end of the elastic member 9, and the outer wall of the firing pin piston 14 is slidably engaged with the inner wall of the guide cylinder 16.

[0040] In some embodiments, the transmission rack 6 has a strip-shaped structure. A plurality of first tooth-shaped structures 26 are sequentially constructed along the length direction on one side edge of the transmission rack 6 in the width direction to form a row of meshing structures 28. A plurality of grooves 29 are sequentially opened along the length direction on one side surface of the transmission rack 6 in the thickness direction. The remaining material between any two adjacent grooves 29 forms a second tooth-shaped structure 27 to form another row of meshing structures 28.

[0041] In this embodiment, the transmission rack 6 is a bidirectional rack. Compared with the bidirectional racks in related technologies that use two rows of protruding teeth for bidirectional transmission, this embodiment uses the removal of some material to form a second tooth structure 27. Compared with the solution in related technologies that adds material to form protruding teeth, this has the advantages of being lightweight and small in size, which can reduce energy consumption and, when applied to electric nail guns, facilitates a better layout and shortens the overall length of the electric nail gun.

[0042] In some examples, the width of the two slots 29 on both sides is greater than the width of the middle slot 29, and all the middle slots 29 have the same width.

[0043] The embodiments of the present invention facilitate the engagement or disengagement of the teeth on the second tooth structure 27 and the driving gear 10.

[0044] In some examples, the groove 29 extends through the front and rear surfaces of the transmission rack 6 to form a through groove, which can also be referred to as a through hole. The groove 29 in this invention is a through groove, and the machining process of a through groove is simple and easy.

[0045] In some examples, the cross-sectional area of ​​the slot 29 gradually decreases from front to back, and the slot 29 is used for the teeth on the drive gear 10 to extend into the slot 29 from front to back during the transmission process.

[0046] In some embodiments, two second transmission gears 8 are provided, and tooth grooves 15 are constructed on both sides of the striker 13 in the width direction, with the width direction perpendicular to the front-back direction. The teeth on the two second transmission gears 8 respectively mesh with the tooth grooves 15 on both sides of the striker 13 in the width direction.

[0047] This embodiment uses two second transmission gears 8 to transmit power to the striker 13, improving transmission stability. Similar to the transmission rack 6 described above, the teeth on the striker 13 in this embodiment are constructed by removing some material, rather than conventionally adding material to form raised teeth. This helps reduce weight and makes the structure more compact. The weight reduction also achieves the goals of reducing energy consumption and improving operational comfort.

[0048] In some embodiments, the drive gear 10 is missing a gear.

[0049] This embodiment achieves the purpose of releasing the transmission rack 6 by the drive device 1. Specifically, the driving gear 10 completes one nailing process with one rotation. When the driving gear 10 rotates to the position where the missing tooth is directly opposite the transmission rack 6, the transmission rack 6 is released. The transmission rack 6 moves backward under the negative pressure attraction and the rebound action of the elastic element.

[0050] In some embodiments, the rear end of the guide cylinder 16 extends from the rear end of the vacuum cylinder 2. The rear end of the guide cylinder 16 has a threaded hole that extends along the front-rear direction and passes through the rear end plate 21 of the guide cylinder. A screw 19 is threadedly connected inside the threaded hole. The two ends of the screw 19 extend from the two ends of the threaded hole, respectively. A nut 23 is threadedly connected to the screw 19 extending from the front end. An adjusting cap 4 is fixedly connected to the screw 19 extending from the rear end. An adjusting seat 20 is provided at the rear end of the inner cavity of the guide cylinder 16. The front end face of the adjusting seat 20 abuts against the rear end of the elastic member 9. The front end face of the screw 19 or the front end face of the nut 23 abuts against the rear end face of the adjusting seat 20. The degree of screwing in the adjusting screw 19 can adjust the front-rear position of the adjusting seat 20.

[0051] This embodiment achieves the purpose of adjusting the pre-compression of the elastic element 9, thereby adjusting the nailing force.

[0052] When using the nailing force, if it is necessary to reduce the nailing force, the screw 19 is moved backward a certain distance by rotating the adjusting cap 4, which reduces the pre-compression of the elastic element 9. The pre-compression can even be adjusted to 0 directly, which reduces the compression of the elastic element 9 when it is in the energy storage state, thereby reducing the nailing force. Conversely, if it is necessary to increase the nailing force, the screw 19 is moved forward a certain distance by rotating the adjusting cap 4.

[0053] In some embodiments, a one-way valve 11 is provided at the rear end of the vacuum cylinder 2, which only allows gas in the vacuum cylinder 2 to flow out through the one-way valve 11.

[0054] This embodiment improves the stability of device use.

[0055] In some embodiments, both the vacuum cylinder 2 and the guide cylinder 16 are cylindrical structures.

[0056] In some embodiments, the present invention further includes a locking device 5. The top of the magazine 3 has a top plate 18, with a nail feed port 24 disposed on the top plate 18. The top plate 18 also has a nail dispensing channel 25 disposed in front of and connected to the nail feed port 24. A cover plate 17 is disposed on the top plate 18. The cover plate 17 is flip-up and has a locked state and an open state. In the locked state, the cover plate 17 covers the nail feed port 24 and the nail dispensing channel 25 on the top plate 18. The locking device 5 can lock the cover plate 17 and the top plate 18 in the locked state, and in the open state, the cover plate 17 exposes the nail feed port 24 and the nail dispensing channel 25 on the top plate 18. The locking device 5 is preferably a buckle locking structure as shown in the figure.

[0057] Compared to the related technologies that use screws or bolts to fix the cover plate 17, this embodiment facilitates quick equipment maintenance.

[0058] Specifically, the locking structure includes a hanging ring 30, a wrench 31, and a hook 32. The cover plate 17 has a through hole for the hook 32 to pass through. The hook 32 is fixedly set on the upper surface of the top plate 18. The hanging ring 30 is hinged to the wrench 31, and the wrench 31 is connected to the cover plate 17. The cover plate 17 can be flipped downward to achieve a locking state. In the locking state, the hook 32 extends into the through hole on the cover plate 17 and extends out from the top of the through hole. The hanging ring 30 can be flipped forward and downward to fit on the front end of the hook 32. Then, the wrench 31 is flipped backward and downward until the length of the wrench 31 extends along the front-back direction, so that the hanging ring 30 can pull the hook 32 backward and achieve the purpose of locking.

[0059] In some embodiments, the elastic element 9 is a rigid spring and a gas spring. It is understood that the gas spring is composed of gas in the sealed space between the striker piston 14 and the rear end of the guide cylinder 16. It is understood that in order to achieve the airtightness of the sealed space, some sealing measures can be adopted, such as setting a sealing ring or sealing strip.

[0060] Since the magazine 3 is a conventional structure, the embodiments of the present invention have not made any improvements to it. Therefore, the structure of the magazine 3 will not be described in detail in this specification.

[0061] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An electric nail gun, wherein the nail firing direction is forward and the direction opposite to the nail firing direction is backward, characterized in that: include: A guide cylinder, the rear end of which is closed and the front end is open, is provided with an elastic element extending in the front-back direction inside the guide cylinder, and the front end of the elastic element is connected to a firing pin extending in the front-back direction. The firing pin has an energy storage state and a release state. In the energy storage state, the firing pin moves backward a certain distance relative to the firing pin in the release state and compresses the elastic element. A vacuum cylinder, the rear end of which is closed and the front end is open, at least part of which is located inside the vacuum cylinder, the front end of which is located inside the vacuum cylinder, and a cylinder piston that is slidably disposed inside the vacuum cylinder along the front-rear direction, the cylinder piston being slidably sleeved outside the guide cylinder; the cylinder piston and the firing pin are connected by a drive, and when the cylinder piston moves inside the vacuum cylinder, it can drive the firing pin to move in the opposite direction; The driving device is capable of driving the cylinder piston to move in a forward direction to create a negative pressure state inside the vacuum cylinder; the driving device is also capable of releasing the cylinder piston to allow the cylinder piston to move backward under the suction of the negative pressure. as well as The magazine is configured with a nail feed port. When the firing pin moves from the stored state to the released state, the front end of the firing pin moves along a first path, and the nail feed port is located on the first path.

2. The electric nail gun according to claim 1, characterized in that: It also includes a transmission rack, a first transmission gear, a second transmission gear, and a drive gear; the driving device includes a drive motor, the drive motor and the drive gear are connected, the transmission rack is located in front of the cylinder piston, the rear end of the transmission rack is fixedly connected to the cylinder piston, the transmission rack has two rows of meshing structures extending in the front-rear direction, one row of meshing structures meshes with the drive gear to enable the drive motor to drive the transmission rack to move, the other row of meshing structures meshes with the first transmission gear, the first transmission gear and the second transmission gear are coaxial and fixedly connected, the striker is constructed with a plurality of tooth grooves arranged sequentially along its own length direction, the tooth grooves mesh with the teeth on the second transmission gear, when the cylinder piston moves in the vacuum cylinder, the transmission rack, the first transmission gear and the second transmission gear and the tooth grooves drive the striker to move in the opposite direction.

3. The electric nail gun according to claim 2, characterized in that: The transmission rack has a slat-like structure. On one side of the transmission rack in the width direction, multiple first tooth-like structures are sequentially constructed along the length direction to form a row of meshing structures. On one side of the transmission rack in the thickness direction, multiple grooves are sequentially opened along the length direction. The remaining material between any two adjacent grooves forms a second tooth-like structure to form another row of meshing structures.

4. The electric nail gun according to claim 2, characterized in that: The second transmission gear is provided in two parts, and the tooth grooves are constructed on both sides of the firing pin in the width direction. The width direction is perpendicular to the front-back direction, and the teeth on the two second transmission gears respectively mesh with the tooth grooves on both sides of the firing pin in the width direction.

5. The electric nail gun according to claim 3, characterized in that: The drive gear is missing a gear.

6. The electric nail gun according to claim 1, characterized in that: The rear end of the guide cylinder extends from the rear end of the vacuum cylinder. A threaded hole extending along the front-rear direction and penetrating the rear end plate of the guide cylinder is provided at the rear end of the guide cylinder. A screw is threadedly connected to the threaded hole, with both ends of the screw extending from the ends of the threaded hole. A nut is threadedly connected to the screw extending from the front end, and an adjusting cap is fixedly connected to the screw extending from the rear end. An adjusting seat is provided at the rear end of the inner cavity of the guide cylinder. The front end face of the adjusting seat abuts against the rear end of the elastic element, and the front end face of the screw or the nut abuts against the rear end face of the adjusting seat. Adjusting the degree of screwing in the screw can adjust the front-rear position of the adjusting seat.

7. The electric nail gun according to claim 1, characterized in that: A one-way valve is provided at the rear end of the vacuum cylinder, which only allows gas in the vacuum cylinder to flow out through the one-way valve.

8. The electric nail gun according to claim 1, characterized in that: Both the vacuum cylinder and the guide cylinder are cylindrical structures.

9. The electric nail gun according to claim 1, characterized in that: It also includes a locking device. The top of the magazine has a top plate, the nail feed port is located on the top plate, and the top plate also has a nail dispensing channel located in front of the nail feed port and connected to the nail feed port. The top plate is provided with a cover plate, which can be flipped. The cover plate has a latched state and an open state. In the latched state, the cover plate covers the nail feed port and the nail dispensing channel on the top plate. The locking device can lock and fix the cover plate and the top plate in the latched state. In the open state, the cover plate exposes the nail feed port and the nail dispensing channel on the top plate.

10. The electric nail gun according to claim 1, characterized in that: The elastic element is a rigid spring or a gas spring.

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