CN-224209875-U - Trigger structure with gear adjustment and nail gun

Abstract

The utility model relates to a trigger structure with gear adjustment, which comprises a trigger, an adjusting wheel and an elastic piece, wherein the trigger is provided with an adjusting wheel accommodating cavity, one side of the trigger is provided with a first notch communicated with the corresponding adjusting wheel accommodating cavity, the other side of the trigger is provided with a second notch communicated with the adjusting wheel accommodating cavity, and the trigger is provided with an elastic piece accommodating cavity communicated with the adjusting wheel accommodating cavity; according to the trigger structure with gear adjustment, the first step surface and the second step surface which are different in height on the adjusting wheel are matched with the trigger rotating structure, so that the differential control of the pushing distance of the control rod is realized on the premise that the rotation angle of the trigger is kept constant each time, and the position of the trigger, which is correspondingly contacted with the control rod, is changed along with the rotation of the trigger to a fixed angle due to the different heights of the step surfaces, so that the displacement of the control rod is changed, and finally, the aim of switching different nailing modes of the nailing gun is fulfilled.

Inventors

• LIN YUEHONG

Assignees

• 广东明晖气动科技有限公司

Dates

Publication Date

20260508

Application Date

20250529

Claims (6)

1. 1. The trigger structure with the gear adjustment comprises a trigger, an adjusting wheel and an elastic piece, and is characterized in that the trigger is provided with an adjusting wheel accommodating cavity, a first notch communicated with the corresponding adjusting wheel accommodating cavity is formed in one side of the trigger, a second notch communicated with the adjusting wheel accommodating cavity is formed in the other side of the trigger, and the trigger is provided with an elastic piece accommodating cavity communicated with the adjusting wheel accommodating cavity; The surface of the adjusting wheel is a first step surface, a part of the surface of the adjusting wheel is recessed downwards to form a second step surface, the adjusting wheel is provided with an opening, the opening is positioned between the first step surface and the second step surface, the height of the first step surface is larger than that of the second step surface, and a first clamping groove, a second clamping groove and a third clamping groove are formed in the outer wall of the adjusting wheel at intervals; the adjusting wheel is arranged in the accommodating cavity of the adjusting wheel in a rotating manner, and part of the adjusting wheel extends out of the second notch to form a poking part which is convenient for a user to rotate the adjusting wheel; the elastic piece is arranged in the elastic piece accommodating cavity, and the head of the elastic piece enters the outer wall of the adjusting wheel; When the head of the elastic piece enters the third clamping groove, the elastic piece locks the current rotating position of the adjusting wheel, and the first notch is communicated with the opening of the adjusting wheel; When the head of the elastic piece enters the first clamping groove, the elastic piece locks the current rotating position of the adjusting wheel, and meanwhile, the first notch is communicated with the first step surface of the adjusting wheel; When the head of the elastic piece enters the second clamping groove, the elastic piece locks the current rotating position of the adjusting wheel, and meanwhile, the first notch is communicated with the second step surface of the adjusting wheel.
2. 2. The trigger structure with gear adjustment according to claim 1, further comprising a central shaft, wherein a central channel is formed in the central position of the adjustment wheel, a central hole is formed in the adjustment wheel accommodating cavity corresponding to the central channel, the central shaft penetrates through the central channel, the end portion of the central shaft is inserted into the corresponding central hole, and the adjustment wheel rotates by taking the central shaft as a rotation center.
3. 3. The trigger structure with gear adjustment according to claim 1, wherein the bottom wall of the accommodating cavity of the adjusting wheel is provided with a limiting column, the bottom wall of the adjusting wheel is provided with a limiting groove communicated with the opening, the limiting column is inserted into the limiting groove, and the limiting column and the opening limit the moving range of the limiting column together, so that the rotating angle of the adjusting wheel is limited.
4. 4. The trigger structure with gear adjustment according to claim 1, wherein the elastic piece comprises a retaining piece and an elastic positioning glass bead, the trigger is provided with a socket corresponding to the elastic piece accommodating cavity, the elastic positioning glass bead is arranged in the elastic piece accommodating cavity, the retaining piece passes through the socket to be arranged in the elastic piece accommodating cavity, the head of the elastic positioning glass bead stretches into the adjusting wheel accommodating cavity, and the tail of the elastic positioning glass bead abuts against the retaining piece.
5. 5. A nail gun adopting the trigger structure as claimed in any one of claims 1-4, which is characterized by comprising a gun body and a control rod for adjusting a nailing mode, wherein the gun body is provided with a sliding channel, the control rod is arranged in the sliding channel in a sliding mode, and one end part of the control rod extends out of the sliding channel; The trigger is arranged on the gun body in a rotating mode, the control rod faces the first notch, and the trigger rotates to push the control rod to move and control the moving distance of the control rod.
6. 6. The nail gun of claim 5, further comprising a spring, wherein the trigger is provided with a spring accommodating cavity, the spring is arranged in the spring accommodating cavity, one end of the spring is abutted against the inner wall of the spring accommodating cavity, the other end of the spring is abutted against the gun body, and the spring forms a reset mechanism of the trigger.

Description

Trigger structure with gear adjustment and nail gun Technical Field The utility model relates to a trigger structure with gear adjustment and a nail gun. Background As a nailing tool widely used in the fields of furniture manufacturing, decoration, industrial assembly, etc., a nail gun drives an internal operating mechanism by pulling a trigger, thereby realizing rapid ejection of nails. In order to adapt to the demands of different working scenes on nailing depth and strength, the existing nailing gun is generally provided with a multi-gear nailing mode, and the moving distance of the control rod is indirectly controlled by limiting the rotating angle of the trigger, so that the aim of adjusting the nailing effect is fulfilled. In the prior art, the above functions are often achieved by providing a mechanical limiting device on the gun body for limiting the rotation angle of the trigger. Although this structure can meet the requirement of adjusting gears to a certain extent, the following defects still exist: because the trigger and the limiting device are in a working state of stress and frequent movement for a long time, the mechanical connection part of the trigger and the limiting device is easy to deform or loosen, so that the originally accurate rotation angle is limited to be invalid, and the stroke precision of the control rod is affected. In the multi-gear switching process, the actual rotation angle of the trigger is easily deviated due to the influence of mechanical tolerance, long-term abrasion or user operation habit, thereby influencing the stroke precision of the control rod. Most of the existing schemes fail to provide a stable and repeatable gear locking mechanism, which is difficult to meet the practical use requirements of high precision and long service life. Disclosure of utility model A first object of the present utility model is to provide a trigger structure with gear adjustment for the stroke accuracy of a lever. A second object of the present utility model is to provide a nail gun of stroke accuracy of the operating lever. The first object of the present utility model is achieved by: The trigger structure with the gear adjustment comprises a trigger, an adjusting wheel and an elastic piece, wherein the trigger is provided with an adjusting wheel accommodating cavity, a first gap communicated with the corresponding adjusting wheel accommodating cavity is formed in one side of the trigger, a second gap communicated with the adjusting wheel accommodating cavity is formed in the other side of the trigger, and the trigger is provided with an elastic piece accommodating cavity communicated with the adjusting wheel accommodating cavity; The surface of the adjusting wheel is a first step surface, a part of the surface of the adjusting wheel is recessed downwards to form a second step surface, the adjusting wheel is provided with an opening, the opening is positioned between the first step surface and the second step surface, the height of the first step surface is larger than that of the second step surface, and a first clamping groove, a second clamping groove and a third clamping groove are formed in the outer wall of the adjusting wheel at intervals; the adjusting wheel is arranged in the accommodating cavity of the adjusting wheel in a rotating manner, and part of the adjusting wheel extends out of the second notch to form a poking part which is convenient for a user to rotate the adjusting wheel; the elastic piece is arranged in the elastic piece accommodating cavity, and the head of the elastic piece enters the outer wall of the adjusting wheel; When the head of the elastic piece enters the third clamping groove, the elastic piece locks the current rotating position of the adjusting wheel, and the first notch is communicated with the opening of the adjusting wheel; When the head of the elastic piece enters the first clamping groove, the elastic piece locks the current rotating position of the adjusting wheel, and meanwhile, the first notch is communicated with the first step surface of the adjusting wheel; When the head of the elastic piece enters the second clamping groove, the elastic piece locks the current rotating position of the adjusting wheel, and meanwhile, the first notch is communicated with the second step surface of the adjusting wheel. According to the trigger structure with gear adjustment, the first step surface and the second step surface which are different in height on the adjusting wheel are matched with the trigger rotating structure, so that the differential control of the pushing distance of the control rod is realized on the premise that the rotation angle of the trigger is kept constant each time, and the position of the trigger, which is correspondingly contacted with the control rod, is changed along with the rotation of the trigger to a fixed angle due to the different heights of the step surfaces, so that the displacement of the control rod is changed,