A dual-thread adjustment structure for a lithium-ion nail gun

Abstract

This utility model discloses a dual-thread adjustment structure for a lithium-ion nail gun, relating to the field of electric nail guns. It includes a safety assembly comprising a safety rod, the rear end of which is slidably disposed within the nail gun housing, and the front end extending beyond the nozzle; an adjustment screw, disposed on the side of the nail gun housing away from the nozzle, driven by a knob, with coarse and fine threads sequentially arranged on the adjustment screw; a depth indicator slide plate, slidably fitted onto the adjustment screw and engaging with the coarse thread, which slides up and down along the nail gun housing when the knob is rotated; and a depth adjustment sleeve, slidably fitted onto the adjustment screw and engaging with the fine thread, with an adjustment block on its outer wall, located directly above the rear end of the safety rod. Adjusting the position of the adjustment block relative to the safety rod by rotating the knob changes the length of the safety rod extending beyond the nozzle. This utility model allows for flexible adjustment of the nailing depth and provides a clear display of the adjustment scale.

Description

Technical Field

[0001] This utility model relates to the field of electric nail guns, and specifically to a dual-thread adjustment structure for a lithium-ion nail gun. Background Technology

[0002] A nail gun, also known as a nailing gun or nail gun, is a modern fastening technology product that fires nails. It utilizes direct fastening technology and has become an essential hand tool in woodworking and construction. Typically, nail guns are powered by electric or pneumatic actuators. Existing nail guns generally have a uniform nailing depth, making them difficult to adjust and adaptable to different nailing environments and materials. While some nail guns offer adjustable nailing depth, the adjustment is not easily displayed, requiring users to repeatedly adjust the setting to achieve the desired depth, resulting in a poor user experience. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a double-thread adjustment structure for a lithium-ion nail gun, which can flexibly adjust the nailing depth and intuitively display the adjustment scale.

[0004] The objective of this utility model is achieved through the following technical solution: This lithium-ion nail gun features a dual-thread adjustment structure, including a nozzle mounted inside the nail gun housing. The nozzle is located at the front of the nail gun housing. The dual-thread adjustment structure comprises:

[0005] The safety assembly includes a safety lever, the rear end of which is slidably disposed within the nail gun housing, and the front end of which extends out of the nozzle and abuts against the nailing surface;

[0006] The adjusting screw is located on the side of the nail gun housing away from the nozzle. The adjusting screw is driven by a knob that protrudes from the nail gun housing. The adjusting screw is provided with coarse and fine threads in sequence.

[0007] The depth indicator slide is slidably fitted onto the adjusting screw and engages with the coarse thread. When the knob is turned, the depth indicator slide slides up and down along the nail gun housing; and

[0008] The depth adjustment sleeve is slidably fitted onto the adjustment screw and engages with the fine thread. An adjustment block is provided on the outer wall of the depth adjustment sleeve. The adjustment block is located directly above the rear end of the safety rod. The position of the adjustment block relative to the safety rod is adjusted by turning the knob, thereby changing the length of the safety rod extending out of the nozzle.

[0009] As a further technical solution, a spring mounting rod is connected to the safety bar via a connecting rod, which is used to mount a return spring. The return spring is installed inside the nail gun housing, so that the safety bar maintains its tendency to move outward from the nozzle.

[0010] As a further technical solution, the top of the adjusting screw is provided with an external spline, which is used to cooperate with the slot set in the inner hole of the knob.

[0011] As a further technical solution, the part of the knob that extends into the nail gun housing is provided with a toothed ring, which is used to cooperate with the spring plate fixed inside the nail gun housing.

[0012] As a further technical solution, the depth indicator slide plate is provided with a snap-fit ​​part that mates with the coarse thread. A groove is opened on the depth indicator slide plate below the snap-fit ​​part, and a protrusion set on the outer wall of the depth adjustment sleeve is embedded in the groove to achieve sliding guidance.

[0013] As a further technical solution, the back of the depth indicator slide has an indicator arrow that exposes the nail gun housing. A scale is provided on the nail gun housing at a position corresponding to the indicator arrow, so that when the knob is turned, the indicator arrow slides up and down relative to the nail gun housing to achieve depth adjustment display.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The adjusting screw is equipped with both coarse and fine threads, which can be used to install the depth indicator slide and the depth adjustment sleeve. When the adjusting screw is rotated the same number of times, the sliding distance of the depth indicator slide and the depth adjustment sleeve is different, so as to achieve depth adjustment and also intuitively display the adjustment scale.

[0016] 2. The knob, through the engagement of a toothed ring and a spring plate, generates resistance when rotating and emits a sound, providing an audible prompt during adjustment and improving the feel of adjustment.

[0017] 3. The depth indicator slide and the depth adjustment slide sleeve are connected by a protrusion and a groove to achieve sliding guidance, ensuring stability and reliability during adjustment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 3 This is a schematic diagram of the knob in this utility model.

[0021] Figure 4 This is a schematic diagram of the adjusting screw in this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the depth indicator slide and the depth adjustment slide sleeve in this utility model.

[0023] Figure 6This is a cross-sectional view of the depth indicator slide and the depth adjustment slide sleeve in this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of this utility model assembled on a nail gun.

[0025] Figure 8 This is a schematic diagram of the structure of this utility model in conjunction with the safety component.

[0026] Explanation of reference numerals in the attached drawings: 1. Nail gun housing; 11. Spring plate; 2. Nozzle; 3. Knob; 31. Gear ring; 32. Slot; 4. Depth indicator slide plate; 41. Snap-fit ​​part; 42. Slide groove; 43. Indicator arrow; 5. Depth adjustment sleeve; 51. Protrusion; 52. Adjustment block; 6. Safety assembly; 61. Safety rod; 62. Connecting rod; 63. Spring mounting rod; 7. Return spring; 8. Adjusting screw; 81. Coarse thread; 82. Fine thread; 83. External spline. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings:

[0028] Example: As attached Figures 1-8 As shown, this lithium-ion nail gun's dual-thread adjustment structure includes a nail gun housing 1, a spring plate 11, a nozzle 2, a knob 3, a toothed ring 31, a slot 32, a depth indicator slide plate 4, a locking part 41, a sliding groove 42, an indicator arrow 43, a depth adjustment sleeve 5, a protrusion 51, an adjustment block 52, a safety component 6, a safety rod 61, a connecting rod 62, a spring mounting rod 63, a return spring 7, an adjustment screw 8, a coarse thread 81, a fine thread 82, and an external spline 83.

[0029] Reference Appendix Figure 7 A nozzle 2 is provided at the front of the nail gun housing 1. The double-threaded adjustment structure is installed inside the nail gun housing 1 and is located at the rear of the nail gun housing 1 (i.e., on the side away from the nozzle 2).

[0030] like Figure 7 , 8 As shown, the safety assembly 6 includes a safety rod 61, a connecting rod 62, and a spring mounting rod 63. The rear end of the safety rod 61 is slidably disposed within the nail gun housing 1. Furthermore, the spring mounting rod 63 is connected to the safety rod 61 via the connecting rod 62. A return spring 7 is fitted onto the spring mounting rod 63 and inserted into the nail gun housing 1, maintaining the safety rod 61's tendency to extend towards the nozzle 2. The front end of the safety rod 61 extends beyond the nozzle 2 and rests against the nailing surface, serving a safety function. When the front end of the safety rod 61 leaves the nailing surface, it continues to extend outward under the action of the return spring 7.

[0031] like Figure 1 , 2As shown in Figure 4, the adjusting screw 8 is located on the side of the nail gun housing 1 away from the nozzle 2. The top of the adjusting screw 8 is connected and driven by the knob 3. Preferably, an external spline 83 is provided on the top of the adjusting screw 8, which engages with a groove 32 provided in the inner hole of the knob 3. The knob 3 protrudes from the nail gun housing 1, and a coarse thread 81 and a fine thread 82 are sequentially provided on the adjusting screw 8 below the knob 3. Preferably, the part of the knob 3 that extends into the nail gun housing 1 is provided with a toothed ring 31, which can engage with a spring plate 11 fixed inside the nail gun housing 1, thereby generating a resistance force when rotating and producing a sound, providing an indication sound during adjustment and improving the feel during adjustment.

[0032] Reference Appendix Figure 2 , 5 6. The depth indicator slide plate 4 is slidably fitted onto the adjusting screw 8 and engages with the coarse thread 81. When the knob 3 is turned, the depth indicator slide plate 4 slides up and down along the nail gun housing 1. The depth adjustment sleeve 5 is slidably fitted onto the adjusting screw 8 and engages with the fine thread 82. An adjustment block 52 is provided on the outer wall of the depth adjustment sleeve 5. The adjustment block 52 is located directly above the rear end of the safety rod 61. Figure 8 As shown, the position (height) of the adjusting block 52 relative to the safety lever 61 is adjusted by knob 3, thereby changing the length of the safety lever 61 extending out of the nozzle 2 (limiting the upward movement of the safety lever 61).

[0033] Furthermore, the depth indicator slide plate 4 is provided with a locking part 41 that mates with the coarse thread 81. A groove 42 is formed on the depth indicator slide plate 4 below the locking part 41. A protrusion 51 on the outer wall of the depth adjustment sleeve 5 is embedded in the groove 42 to achieve sliding guidance. Preferably, an indicator arrow 43 protruding from the nail gun housing 1 is provided on the back of the depth indicator slide plate 4. Simultaneously, a scale is provided on the nail gun housing 1 at a position corresponding to the indicator arrow 43, so that when the knob 3 is rotated, the indicator arrow 43 slides up and down relative to the nail gun housing 1, achieving depth adjustment display.

[0034] The working process of this utility model:

[0035] When the nail gun is lifted, the front end of the safety lever 61 (i.e., the end extending from the nozzle 2) leaves the nailing plane and continues to extend outward under the action of the return spring 7. At this time, the nailing depth is adjusted by rotating the knob 3. When the knob 3 is rotated two turns, the adjusting screw 8 also rotates two turns due to the spline transmission, causing the depth indicator slide plate 4 and the depth adjustment sleeve 5 to move up and down synchronously. The pitch of the coarse thread 81 is 6.5mm, and the pitch of the fine thread 82 is 2.5mm. The depth adjustment sleeve 5 is fitted on the fine thread, so the vertical movement is 5mm, and the vertical movement of the depth indicator slide plate 4 is 13mm. As the depth adjustment sleeve 5 moves downward, the adjusting block 52 moves downward synchronously, changing the distance between the lower end of the adjusting block 52 and the rear end of the safety lever 61. When the front end of the safety lever 61 contacts the nailing plane again, its length extending from the nozzle 2 changes, thus changing the nailing depth.

[0036] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A double-threaded adjustment structure for a lithium-ion nail gun, installed inside a nail gun housing (1), wherein a nozzle (2) is provided at the front of the nail gun housing (1), characterized in that, include: The safety assembly (6) includes a safety bar (61), the rear end of which is slidably disposed within the nail gun housing (1), and the front end of which is used to extend out of the nozzle (2) and abut against the nailing surface; The adjusting screw (8) is located on the side of the nail gun housing (1) away from the nozzle (2). The adjusting screw (8) is connected and driven by the knob (3). The knob (3) protrudes from the nail gun housing (1). Coarse thread (81) and fine thread (82) are sequentially provided on the adjusting screw (8). The depth indicator slide plate (4) is slidably fitted onto the adjusting screw (8) and engages with the coarse thread (81). When the knob (3) is turned, the depth indicator slide plate (4) slides up and down along the nail gun housing (1); and The depth adjustment sleeve (5) is slidably fitted on the adjustment screw (8) and engages with the fine thread (82). An adjustment block (52) is provided on the outer wall of the depth adjustment sleeve (5). The adjustment block (52) is located directly above the rear end of the safety rod (61). The position of the adjustment block (52) relative to the safety rod (61) is adjusted by the knob (3), thereby changing the length of the safety rod (61) extending out of the nozzle (2).

2. The double threaded adjusting structure of the lithium electric nail gun according to claim 1, characterized in that: The safety bar (61) is connected to a spring mounting rod (63) via a connecting rod (62), which is used to mount a reset spring (7). The reset spring (7) is installed inside the nail gun housing (1) so that the safety bar (61) maintains its tendency to move in the direction of extending out of the nozzle (2).

3. The double threaded adjusting structure of a lithium electric nail gun according to claim 1, wherein: The top of the adjusting screw (8) is provided with an external spline (83) for engaging with a slot (32) set in the inner hole of the knob (3).

4. The double threaded adjusting structure of a lithium electric nail gun according to claim 1, wherein: The part of the knob (3) that extends into the nail gun housing (1) is provided with a toothed ring (31) for engaging with a spring plate (11) fixed inside the nail gun housing (1).

5. The double threaded adjustment structure of a lithium electric nail gun according to claim 1, wherein: The depth indicator slide plate (4) is provided with a snap-fit ​​part (41) that matches the coarse thread (81). A groove (42) is opened on the depth indicator slide plate (4) below the snap-fit ​​part (41). A protrusion (51) set on the outer wall of the depth adjustment sleeve (5) is embedded in the groove (42) to achieve sliding guidance.

6. The double threaded adjustment structure of a lithium electric nail gun according to claim 1, wherein: The depth indicator slide plate (4) has an indicator arrow (43) on its back that exposes the nail gun housing (1). A scale is provided on the nail gun housing (1) at the position corresponding to the indicator arrow (43), so that when the knob (3) is turned, the indicator arrow (43) slides up and down relative to the nail gun housing (1) to realize depth adjustment display.

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