Safety protection device for lithium battery steel nail gun

Abstract

The utility model relates to a lithium electricity steel nail gun safety device, including the gun rest, the movable setting of drive support and gun barrel has on the gun rest, still detachable setting has the steel nail box on the gun rest, be provided with the return spring between drive support and the gun rest, the gun rest still is provided with hall sensor, the corresponding response magnet is provided with on drive support, hall sensor will sensor signal transmission to the control device of lithium electricity steel nail gun. When needing to drive the operation, the position of the workpiece that needs to drive the press of the gun barrel, the response magnet that sets up on the gun barrel drive support is close to hall sensor and produces sensor signal, only after the control device of lithium electricity steel nail gun receives hall sensor sensor signal, the hammer of lithium electricity steel nail gun is pulled, piston assembly will act, the steel nail box is delivered to the steel nail of the gun barrel position and drives into the workpiece that waits to drive on, thereby through the setting of the hall sensor and response magnet control drive the operation of mutual matching, improve the use safety.

Description

Technical Field

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

[0002] Nail guns are a commonly used power tool in construction, renovation, and decoration processes. For example, patent application number 201811468946.5, entitled "A Portable Electric Nail Gun," illustrates this. As shown in its description and accompanying drawings, although a safety device is provided on the outside of the tubular structure of the nail head, this device is poorly designed. Furthermore, there is no safety detection mechanism for the nail magazine and the nails inside. The gun can fire even when the safety device is fully depressed, and it can still fire even when there is no nail magazine or no nails inside. This leads to frequent instances of firing without a nail magazine or nails, wasting lithium battery resources and posing a safety hazard. Utility Model Content

[0003] This utility model provides a safety protection device for lithium-ion steel nail guns to solve the technical problems existing in this field.

[0004] This utility model provides a safety protection device for a lithium-ion nail gun to solve the above-mentioned technical problems. The device includes a gun frame, on which a drive bracket and a gun barrel are movably mounted. A nail magazine is also detachably mounted on the gun frame. A return spring is provided between the drive bracket and the gun frame. The gun frame is also equipped with a Hall sensor, and a corresponding induction magnet is provided on the drive bracket. The Hall sensor transmits sensor signals to the control device of the lithium-ion nail gun.

[0005] Furthermore, a nail magazine detection mechanism is pivotally connected to the position where the nail magazine is installed on the gun mount. A torsion spring is provided between the nail magazine detection mechanism and the gun mount. The nail magazine detection mechanism is also provided with a first drive head and a first limit head. When the nail magazine is not installed, the first limit head of the nail magazine detection mechanism hooks onto the drive bracket under the action of the torsion spring, and the drive bracket is in a non-driveable compressed state. When the nail magazine is installed on the gun mount, the nail magazine detection mechanism is driven to rotate by the first drive head, causing the first limit head to disengage from the drive bracket, and the drive bracket is in a driveable compressed state.

[0006] Furthermore, a nail detection mechanism is pivotally connected to the nail magazine on the gun mount. A torsion spring is installed between the nail detection mechanism and the gun mount. The nail detection mechanism is equipped with a second drive head and a second limiting head. When there are nails in the nail magazine, the nail pusher on the nail magazine moves away from the second drive head of the nail detection mechanism, and the second limiting head moves away from the drive bracket, so the drive bracket is in a drivable compression state. When there are no nails in the nail magazine, the nail pusher on the nail magazine drives the nail detection mechanism to rotate through the second drive head, causing the second limiting head to abut against the drive bracket, so the drive bracket is in an intangible compression state.

[0007] Furthermore, the drive bracket is also equipped with a nailing depth limiting device. The nailing depth limiting device is mounted on the drive bracket and can be moved left and right. The nailing depth limiting device is provided with a first depth limiting part and a second depth limiting part. The different heights of the first depth limiting part and the second depth limiting part correspond to different nailing depths.

[0008] Furthermore, the drive bracket is also equipped with a drive rod, which is used to drive the damper to open.

[0009] This utility model relates to a safety protection device for a lithium-ion battery-powered nail gun, including a gun frame, a drive bracket and a gun barrel movably mounted on the gun frame, and a nail magazine detachably mounted on the gun frame. A return spring is provided between the drive bracket and the gun frame. The gun frame also has a Hall sensor, and the drive bracket has a corresponding inductive magnet. The Hall sensor transmits a sensor signal to the control device of the lithium-ion battery-powered nail gun. When nailing is required, the gun barrel is aligned with the position on the workpiece to be nailed and pressed down. The inductive magnet on the drive bracket of the gun barrel approaches the Hall sensor and generates a sensor signal. Only after the control device of the lithium-ion battery-powered nail gun receives the sensor signal from the Hall sensor will the trigger of the lithium-ion battery-powered nail gun be pulled, and the piston assembly will actuate, delivering the nail from the nail magazine to the position of the gun barrel and driving it into the workpiece to be nailed. Thus, by using a matched Hall sensor and inductive magnet to control the nailing operation, the safety of use is improved. Attached Figure Description

[0010] Figure 1 and Figure 2 This is a three-dimensional structural diagram of the safety protection device for a lithium-ion steel nail gun according to this utility model; Figure 3 for Figure 2 Schematic diagram of the AA section structure. Detailed Implementation

[0011] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." The following descriptions are preferred embodiments of the present invention; however, these descriptions are intended to illustrate the general principles of the invention and are not intended to limit its scope. The scope of protection of this invention is determined by the appended claims.

[0012] The present invention will be further described in detail below with reference to the accompanying drawings. The directional terms such as "upper", "lower", "left", "right", "inner" and "outer" described in the specification are only for better understanding and explanation, and are not intended to limit the present invention.

[0013] like Figure 1-3 As shown, a safety protection device for a lithium-ion nail gun includes a gun frame 4, on which a drive bracket 5 and a gun barrel 6 are movably mounted. A nail magazine 7 is also detachably mounted on the gun frame 4. A return spring 5b is provided between the drive bracket 5 and the gun frame 4. After the gun barrel 6 is pressed to drive the drive bracket 5 to move, it can be reset by the return spring 5b. The gun frame 4 is also provided with a Hall sensor 5c, and the drive bracket 5 is provided with a corresponding induction magnet 5c1. The Hall sensor 5c transmits sensor signals to the control device of the lithium-ion nail gun.

[0014] When nailing is required, the barrel 6 is aligned with the desired nailing position on the workpiece and pressed down. The barrel 6 pushes the drive bracket 5 to overcome the resistance of the return spring 5b and move towards one end of the gun body 1 where the cover 2 is located. At this time, the drive rod 5a drives the push rod 1d to move, causing the air damper 1c to open, connecting the gas storage chamber 1b with the piston chamber 1a. Simultaneously, the induction magnet 5c1 on the drive bracket 5 approaches the Hall sensor 5c to generate a sensor signal. Only after the control device of the lithium-ion nail gun receives the sensor signal from the Hall sensor 5c will the trigger of the lithium-ion nail gun be pulled. Only then will the drive device on the piston assembly 3 continue to operate, disengaging the drive device from the piston assembly 3. Furthermore, the high-pressure gas stored in the gas storage chamber 1b drives the piston assembly 3 to move at high speed, delivering the nail cartridge 7 to the position of the barrel 6 and driving the nail into the workpiece to be nailed. After nailing is completed, the barrel 6 is released. The drive bracket 5 and the barrel 6 return to their original positions under the action of the return spring 5b, and the air damper 1c closes under the action of the high-pressure gas in the gas storage chamber 1b, awaiting the next round of nailing operations. Throughout the process, the control device of the lithium-ion nail gun needs to receive the signal from the Hall sensor 5c before it can drive the piston assembly 3 to perform the nailing operation, thereby improving the safety of use.

[0015] Preferably, a nail magazine detection mechanism 5d is pivotally connected to the position where the nail magazine 7 is installed on the gun mount 4. A torsion spring is provided between the nail magazine detection mechanism 5d and the gun mount 4. The nail magazine detection mechanism 5d is also provided with a first drive head 5d1 and a first limit head 5d2. When the nail magazine 7 is not installed, the nail magazine detection mechanism 5d is engaged by the first limit head 5d2 under the action of the torsion spring, and the drive support 5 is in an inoperable compressed state. When the nail magazine 7 is installed on the gun mount 4, the nail magazine detection mechanism 5d is driven to rotate by the first drive head 5d1, causing the first limit head 5d2 to disengage from the drive support 5, and the drive support 5 is in an operable compressed state. Therefore, by setting a nail box detection mechanism 5d in the nail box 7 to restrict the drive bracket 5, only after the nail box 7 is installed and the nail box detection mechanism 5d is driven to rotate, so that the first limit head 5d2 is disengaged from the drive bracket 5, can the drive bracket 5 be driven to move through the barrel 6, so that the Hall sensor 5c and the induction magnet 5c1 are brought close to generate an induction signal, and the subsequent nailing operation can be carried out, thus further improving safety.

[0016] More preferably, a nail detection mechanism 5e is pivotally connected to the position where the nail magazine 7 is installed on the gun mount 4. A torsion spring is provided between the nail detection mechanism 5e and the gun mount 4. The nail detection mechanism 5e is provided with a second drive head 5e1 and a second limiting head 5e2. When there are nails in the nail magazine 7, the nail pusher 7a provided on the nail magazine 7 moves away from the second drive head 5e1 of the nail detection mechanism 5e, and the second limiting head 5e2 moves away from the drive bracket 5, so that the drive bracket 5 is in a driveable compression state. When there are no nails in the nail magazine 7, the nail pusher 7a provided on the nail magazine 7 drives the nail detection mechanism 5e to rotate through the second drive head 5e1, so that the second limiting head 5e2 abuts against the drive bracket 5, and the drive bracket 5 is in an inoperable compression state. Therefore, by setting a nail detection mechanism 5e in the nail magazine 7 to detect the nails in the nail magazine 7, only when there are still nails in the nail magazine 7 will the nail pusher 7a move away from the second drive head 5e1 and the second limit head 5e2 move away from the drive bracket 5, so that the drive bracket 5 can be moved by the barrel 6, thereby causing the Hall sensor 5c to approach the induction magnet 5c1 to generate an induction signal, so that the subsequent nailing operation can be performed, thereby improving the safety of the lithium battery nail gun.

[0017] More preferably, the drive bracket 5 is further provided with a nailing depth limiting device 5f. The nailing depth limiting device 5f is slidably mounted on the drive bracket 5, and includes a first depth limiting part 5f1 and a second depth limiting part 5f2. Different heights of the first depth limiting part 5f1 and the second depth limiting part 5f2 correspond to different nailing depths. For example... Figure 1As shown, the first depth limiting part 5f1 is positioned higher than the second depth limiting part 5f2. During the process of the barrel 6 driving the drive bracket 5 to move the same distance via the drive head 6a, the distance the barrel 6 moves at the first depth limiting part 5f1 is less than the distance the barrel 6 moves at the second depth limiting part 5f2. Therefore, when the second depth limiting part 5f2 of the nailing depth limiting device 5f is aligned with the drive head 6a of the barrel 6, the nailing depth is deeper, and when the first depth limiting part 5f1 of the nailing depth limiting device 5f is aligned with the drive head 6a of the barrel 6, the nailing depth is shallower, thereby achieving the adjustment of the nailing depth.

[0018] Furthermore, the drive bracket 5 is also provided with a drive rod 5a, which is used to drive the damper to open.

[0019] The foregoing description illustrates and describes preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A safety protection device for a lithium-ion nail gun, comprising a gun holder (4), characterized in that: The gun holder (4) is movably provided with a drive bracket (5) and a gun barrel (6). A steel nail box (7) can also be detachably provided on the gun holder (4). A return spring (5b) is provided between the drive bracket (5) and the gun holder (4). After the gun barrel (6) is pressed to drive the drive bracket (5) to move, it can be reset by the return spring (5b). The gun holder (4) is also provided with a Hall sensor (5c). The drive bracket (5) is provided with a corresponding induction magnet (5c1). The Hall sensor (5c) transmits the sensor signal to the control device of the lithium-ion steel nail gun.

2. The safety protection device for a lithium-ion nail gun as described in claim 1, characterized in that: A nail magazine detection mechanism (5d) is pivotally connected to the position where the nail magazine (7) is installed on the gun mount (4). A torsion spring is provided between the nail magazine detection mechanism (5d) and the gun mount (4). The nail magazine detection mechanism (5d) is also provided with a first drive head (5d1) and a first limit head (5d2). When the nail magazine (7) is not installed, the nail magazine detection mechanism (5d) is under the action of the torsion spring, and the first limit head (5d2) hooks the drive bracket (5), and the drive bracket (5) is in an undriveable compressed state. After the nail box (7) is installed on the gun mount (4), the nail box detection mechanism (5d) is driven to rotate by the first drive head (5d1), so that the first limit head (5d2) is disengaged from the drive bracket (5), and the drive bracket (5) is in a driveable compression state.

3. A safety protection device for a lithium-ion battery-powered nail gun as described in claim 1 or 2, characterized in that: A nail detection mechanism (5e) is also pivotally connected to the position where the nail box (7) is installed on the gun mount (4). A torsion spring is provided between the nail detection mechanism (5e) and the gun mount (4). The nail detection mechanism (5e) is provided with a second drive head (5e1) and a second limit head (5e2). When there are still nails in the nail box (7), the nail pusher (7a) provided on the nail box (7) is away from the second drive head (5e1) of the nail detection mechanism (5e), ​​and the second limit head (5e2) is away from the drive bracket (5). The drive bracket (5) is in a driveable compression state. When there are no steel nails in the nail box (7), the nail pusher (7a) set on the nail box (7) drives the nail detection mechanism (5e) to rotate through the second drive head (5e1), so that the second limit head (5e2) abuts against the drive bracket (5), and the drive bracket (5) is in an undriveable compressed state.

4. A safety protection device for a lithium-ion nail gun as described in claim 1 or 2, characterized in that: The drive bracket (5) is also provided with a nailing depth limiting device (5f). The nailing depth limiting device (5f) is provided on the drive bracket (5) and can be moved left and right. The nailing depth limiting device (5f) is provided with a first depth limiting part (5f1) and a second depth limiting part (5f2). The different heights of the first depth limiting part (5f1) and the second depth limiting part (5f2) correspond to different nailing depths.

5. The safety protection device for a lithium-ion nail gun as described in claim 3, characterized in that: The drive bracket (5) is also provided with a nailing depth limiting device (5f). The nailing depth limiting device (5f) is provided on the drive bracket (5) and can be moved left and right. The nailing depth limiting device (5f) is provided with a first depth limiting part (5f1) and a second depth limiting part (5f2). The different heights of the first depth limiting part (5f1) and the second depth limiting part (5f2) correspond to different nailing depths.

6. A safety protection device for a lithium-ion nail gun as described in claim 1 or 2, characterized in that: The drive bracket (5) is also provided with a drive rod (5a), which is used to drive the damper to open.

7. The safety protection device for a lithium-ion nail gun as described in claim 3, characterized in that: The drive bracket (5) is also provided with a drive rod (5a), which is used to drive the damper to open.

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