A drive structure of a gas spring electric nail gun

Abstract

This invention provides a drive structure for a gas spring electric nail gun, including a fixing component, a firing pin, a rotating structure, a sliding structure, and a gas spring assembly. The fixing component is fixed to the gun head, and the firing pin is fixed to the sliding structure. The gas spring assembly includes a cylinder and a piston rod. The cylinder is provided with a positive pressure hole, a negative pressure hole, a gas valve, and a negative pressure switch. One end of the piston rod is fixedly connected to the sliding structure, and the other end is connected to a piston inside the cylinder. The rotating structure rotates and pushes the sliding structure. The sliding structure drives the piston rod to push the piston to compress the gas in the cylinder. The piston rebounds and drives the piston rod to drive the sliding structure to move at high speed. The sliding structure drives the firing pin to strike the nail tail. The structure is simple, and the assembly of each part is simple and quick. It is convenient to maintain and has low processing and maintenance costs. The gas spring provides stable power and will not suffer from metal fatigue that reduces the striking force. The negative pressure switch can quickly adjust the air pressure, and the striking force can be adjusted without filling the positive pressure chamber, which is convenient and provides strong power.

Description

Technical Field

[0001] This invention relates to the field of electric nail guns, specifically a drive structure for a gas spring electric nail gun. Background Technology

[0002] A gas spring electric nail gun is a nail-driving tool that combines electric drive with gas spring energy storage technology. Powered by a battery, it compresses an internal gas spring, which then releases its elasticity to drive a firing pin and strike the nail. Compared to traditional pure electromagnetic electric nail guns, it offers stronger striking force and is more suitable for scenarios requiring high nailing depth and stability. However, existing gas spring electric nail guns, such as the electric fastener drive tool described in application number 202311833345.0, have the following drawbacks: the complex structure of the gas spring and chain leads to high processing costs, and the complex connections make maintenance inconvenient; the firing pin has teeth on its side, resulting in a redundant design and cumbersome connections, affecting the smoothness of the firing pin; the firing pin and anti-collision buffer are both located inside the cylinder, making repair difficult if a malfunction occurs; the motor is generally located on the side, leading to motor eccentricity, complex connections, and a protruding outer shell, resulting in a complex overall design and inconvenient operation when working in corners. Summary of the Invention

[0003] In view of the shortcomings of existing gas spring electric nail guns, the technical problem to be solved by the present invention is to provide a driving structure for a gas spring electric nail gun that is powerful and stable, simple in structure, easy and quick to assemble, low in processing cost, and convenient to maintain.

[0004] To achieve the above objectives, according to one aspect of the present invention, the invention is implemented through the following technical measures: a driving structure for a gas spring electric nail gun, comprising a fixing member, a firing pin, a rotating structure, a sliding structure, and a gas spring assembly. The fixing member is fixed to the gun head, the firing pin is fixed to the sliding structure, and the gas spring assembly includes a cylinder and a piston rod. The cylinder is provided with an inlet and outlet port. One end of the piston rod is fixedly connected to the sliding structure, and the other end is connected to a piston inside the cylinder. The rotating structure rotates and pushes the sliding structure, the sliding structure drives the piston rod to push the piston to compress the gas inside the cylinder, the piston rebounds and drives the piston rod to drive the sliding structure to move at high speed, and the sliding structure drives the firing pin to strike the nail tail.

[0005] Furthermore, the rotating structure includes a motor, a gearbox, and a turntable, with a pushing part provided on the turntable.

[0006] Furthermore, the sliding structure includes a sliding member and a buffer member. The sliding member is provided with a limiting part. The pushing part cooperates with the limiting part to push the sliding member. The piston rod is connected and fixed to the sliding member. The firing pin is fixed to the sliding member. The buffer member is connected and fixed to the fixing member.

[0007] Furthermore, the number of the pushing part and the limiting part are both three.

[0008] Furthermore, the piston rod is threadedly connected to the sliding element.

[0009] Furthermore, the sliding member is provided with a guide hole, and a guide member is sleeved inside the guide hole. The two ends of the guide member are respectively connected to a fixing member and a cylinder.

[0010] Furthermore, the number of guide components is two.

[0011] Furthermore, the guide component is a cylinder.

[0012] Furthermore, the air inlet and outlet ports include a positive pressure port and a negative pressure port, with an air valve provided at the positive pressure port and a negative pressure switch provided at the negative pressure port.

[0013] Furthermore, the outer shell of the cylinder is provided with several connecting grooves, and sensors are provided in the connecting grooves.

[0014] Compared with the prior art, the advantages of the present invention are as follows: The driving structure of the gas spring electric nail gun is simple, the assembly of each part is simple and quick, maintenance is convenient, and the processing and maintenance costs are low; the gas spring power is stable and there will be no reduction in striking force due to metal fatigue; the negative pressure switch can quickly adjust the air pressure, and the striking force can be adjusted without filling the positive pressure chamber, which is convenient to adjust and has strong power. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the drive structure of a gas spring electric nail gun according to the present invention. Figure 2 This is a schematic diagram of the structure of the slider, guide, and firing pin described in this invention; Figure 3 This is a schematic diagram of the structure of the turntable described in this invention.

[0016] Explanation of reference numerals in the attached drawings: 1. Fixing component; 2. Strike pin; 3. Cylinder; 4. Piston rod; 5. Connecting groove; 6. Negative pressure hole; 7. Positive pressure hole; 8. Air valve; 9. Motor; 10. Gearbox; 11. Turntable; 12. First pushing part; 13. Second pushing part; 14. Third pushing part; 15. Buffer component; 16. Sliding part; 17. Guide component; 18. First limiting part; 19. Second limiting part; 20. Third limiting part. Detailed Implementation

[0017] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0018] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] Please refer to Figure 1-3 This embodiment provides a drive structure for a gas spring electric nail gun, including a fixing component 1, a firing pin 2, a rotating structure, a sliding structure, and a gas spring assembly. The fixing component 1 is connected and fixed to the gun head. The gas spring assembly includes a cylinder 3 and a piston rod 4. The outer shell of the cylinder 3 is provided with several connecting slots 5 to facilitate the installation of sensors. The sensors are used to detect the piston position during use, including a front sensor and a rear sensor. The front sensor detects whether the piston has reached the position when the nail is fired; if it has not reached the position, a nail jamming situation may occur. The rear sensor detects whether the piston has reached the position. If the position is not reached, the pushing force may be insufficient, the air pressure may be too strong, or the power may be insufficient; the cylinder 3 has a negative pressure hole 6 at one end near the sliding structure and a positive pressure hole 7 at the other end. Two air pressure chambers are formed on both sides of the piston. The end near the negative pressure hole 6 is the negative pressure chamber, and the end near the positive pressure hole 7 is the positive pressure chamber. A negative pressure switch is provided at the negative pressure hole 6, and an air valve 8 is provided at the positive pressure hole 7. The air valve 8 is used to close the positive pressure chamber, and air can be charged into the positive pressure chamber through the air valve 8; one end of the piston rod 4 is fixedly connected to the sliding part 16, preferably by a threaded connection, and the other end is connected to the piston inside the cylinder 3.

[0020] The rotating structure rotates and pushes the sliding structure. The rotating structure includes a motor 9, a reduction gearbox 10, and a turntable 11. The turntable 11 is provided with at least one pushing part (preferably three pushing parts in this embodiment, namely the first pushing part 12, the second pushing part 13, and the third pushing part 14).

[0021] The sliding structure drives the piston rod 4 to move, pushing the piston to compress the gas in the cylinder 3. The sliding structure includes a buffer 15, a sliding member 16, and a guide 17. The buffer 15 is connected and fixed to the fixed member 1 to reduce the impact of the sliding member 16 on the fixed member 1. The sliding member 16 is provided with a guide hole and at least one limiting part (preferably three limiting parts are provided in this embodiment, namely a first limiting part 18, a second limiting part 19, and a third limiting part 20). The limiting part and the pushing part on the turntable 11 cooperate to push the sliding member 16. The guide 17 is sleeved with the slider 16 through the guide hole. After sleeved, the slider 16 can slide back and forth along the guide 17. One end of the guide 17 passes through the slider 16 and the buffer 15 and is fixedly connected to the fixing member 1. The other end is fixedly connected to the cylinder 3. In this embodiment, the guide 17 is preferably two cylinders or one non-cylinder. The firing pin 2 is fixedly connected to the slider 16. The piston rebound drives the piston rod 4 to drive the slider 16 to move at high speed. The slider 16 drives the firing pin 2 to strike the nail tail and fire the nail.

[0022] This embodiment provides a drive structure for a gas spring electric nail gun. In use, the starter motor 9 drives the turntable 11 to rotate via the reduction gearbox 10. The first pushing part 12 on the turntable 11 pushes the first limiting part 18 of the sliding member 16. The sliding member 16 drives the firing pin 2 to move. The sliding member 16 pushes the piston rod 4 along the guide member 17, and the piston rod 4 pushes the piston to compress the gas in the positive pressure chamber. When the first pushing part 12 is about to move away from the first limiting part 18, the second pushing part 13 rotates to the position of the second limiting part 19 to take over pushing the sliding member 16. When the second pushing part 13 is about to move away from the second limiting part 19, the third pushing part 14 rotates to the side of the sliding member 16, i.e., the third pushing part 14 continues to push. When the third pushing part 14 rotates away from the side of the sliding part 16, the pressure in the positive pressure chamber of the cylinder 3 reaches its peak. As the turntable 11 continues to rotate, the limiting pushing part disengages from the sliding part 16, and the piston quickly rebounds, pushing the piston rod 4 to reset. The piston rod 4 drives the sliding part 16 to move at high speed, and the sliding part 16 drives the firing pin 2 to strike the nail tail and drive the nail out for operation. When the negative pressure switch is open, the negative pressure chamber is at normal atmospheric pressure, and the nailing force is relatively small. If it is necessary to increase the nailing force, the negative pressure hole 6 can be closed through the negative pressure switch. When the piston compresses the gas in the cylinder 3, a vacuum state is formed in the negative pressure chamber. The pressure difference between the negative pressure chamber and the positive pressure chamber is greater, the piston rebounds faster, and the nailing force is greater.

[0023] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various changes and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A driving structure for a gas spring electric nail gun, characterized in that: The device includes a fixing component (1), a firing pin (2), a rotating structure, a sliding structure, and a gas spring assembly. The fixing component (1) is fixed to the gun head, and the firing pin (2) is fixed to the sliding structure. The gas spring assembly includes a cylinder (3) and a piston rod (4). The cylinder (3) is provided with an air inlet and outlet. One end of the piston rod (4) is fixedly connected to the sliding structure, and the other end is connected to the piston inside the cylinder (3). The rotating structure rotates and pushes the sliding structure. The sliding structure drives the piston rod (4) to push the piston to compress the gas inside the cylinder (3). The piston rebounds and drives the piston rod (4) to drive the sliding structure to move at high speed. The sliding structure drives the firing pin (2) to strike the nail tail.

2. The driving structure of the gas spring electric nail gun according to claim 1, characterized in that: The rotating structure includes a motor (9), a reduction gearbox (10), and a turntable (11), with a pushing part provided on the turntable (11).

3. The driving structure of the gas spring electric nail gun according to claim 2, characterized in that: The sliding structure includes a sliding member (16) and a buffer member (15). The sliding member (16) is provided with a limiting part. The pushing part cooperates with the limiting part to push the sliding member (16). The piston rod (4) is connected and fixed to the sliding member (16). The striker (2) is fixed to the sliding member (16). The buffer member (15) is connected and fixed to the fixing member (1).

4. The driving structure of the gas spring electric nail gun according to claim 3, characterized in that: The number of the pushing part and the limiting part are both 3.

5. The driving structure of the gas spring electric nail gun according to claim 3, characterized in that: The piston rod (4) is threadedly connected to the sliding member (16).

6. The driving structure of the gas spring electric nail gun according to claim 3, characterized in that: The sliding member (16) is provided with a guide hole, and a guide member (17) is sleeved inside the guide hole. The two ends of the guide member (17) are respectively connected to the fixing member (1) and the cylinder (3).

7. The driving structure of the gas spring electric nail gun according to claim 6, characterized in that: The number of guide components (17) is 2.

8. The driving structure of the gas spring electric nail gun according to claim 6 or 7, characterized in that: The guide (17) is a cylinder.

9. The driving structure of the gas spring electric nail gun according to claim 1, characterized in that: The air inlet and outlet ports include a positive pressure port (7) and a negative pressure port (6). An air valve (8) is provided at the positive pressure port (7), and a negative pressure switch is provided at the negative pressure port (6).

10. The driving structure of the gas spring electric nail gun according to claim 1, characterized in that: The cylinder (3) has several connecting grooves (5) on its outer shell, and sensors are provided in the connecting grooves (5).

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