WO2021142907A1

WO2021142907A1 - Pneumatic nailer capable of adjusting nailing depth

Info

Publication number: WO2021142907A1
Application number: PCT/CN2020/078956
Authority: WO
Inventors: 蔡胜永
Original assignee: 浙江东亚工具有限公司
Priority date: 2020-01-17
Filing date: 2020-03-12
Publication date: 2021-07-22
Also published as: CN111136617A

Abstract

A pneumatic nailer capable of adjusting the nailing depth, comprising a head (1), a body (2), a magazine device (3), a safety element (4) provided on the head, an adjustment mechanism, and a trigger device (5). The adjustment mechanism comprises a positioning pin (7) and an adjustment screw (8); the adjustment screw is located at the upper end of the positioning pin, and the bottom of the adjustment screw presses against the upper end of the positioning pin; the adjustment screw comprises a rod portion (9) and a head portion (10); an adjustment wheel (11) is fixed to the rod portion; a pressure spring (12) is provided between the adjustment wheel and the body; the pressure spring is sleeved on the rod portion; the head is provided with a limit seat (13) corresponding to the adjustment wheel; the limit seat is provided with an elongated protrusion (20) extending in a direction toward the adjustment wheel; multiple elongated grooves (21) matching the elongated protrusion are uniformly distributed on the outer wall of the adjustment wheel; the elongated protrusion is fastened in an elongated groove. According to the pneumatic nailer, the adjustment screw can be prevented from displacement during use, and the distance between the muzzle and the safety element can be accurately controlled, thereby preventing the nailing depth from deviation due to rotation of the adjustment screw during use.

Description

Air nail gun capable of adjusting nailing depth

Technical field

The invention relates to an air nail gun, in particular to an air nail gun with adjustable nailing depth.

Background technique

The pneumatic nail gun is also called the pneumatic nailing machine. The pneumatic nail gun uses the air pressure generated by the air pump (air compressor), and the high pressure gas drives the firing pin in the nail gun cylinder to make a hammering motion, and nail the row of nails in the row of nail clamps into the object. Or shoot the row of nails out.

In the nailing operation, the actual use environment often requires different nailing depths. The existing pneumatic nail gun adjusts the adjustment screw to adjust the distance between the end of the safety frame and the muzzle of the gun head to achieve the adjustment of the nailing depth. , But the pneumatic gun will vibrate during use, and the impact force generated by the vibration will drive the adjustment screw to rotate, which will offset the distance between the end of the safety frame and the muzzle of the gun head, causing the nailing depth to change, and the expected effect will not be achieved. , It requires constant manual adjustment, which is time-consuming and labor-intensive.

Summary of the invention

In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide an air nail gun with adjustable nailing depth, which can accurately control the nailing depth and prevent the nailing caused by the rotation of the adjusting screw during use. The nail depth is shifted.

The present invention is accomplished by adopting the following technical solutions: an air nail gun with adjustable nailing depth, including a gun head, a gun body, a magazine device, a safety frame provided on the gun head, an adjustment mechanism and a trigger device, so The end of the safety frame has a round tube part, the round tube part is sleeved on the muzzle of the gun head, the adjustment mechanism includes a positioning pin and an adjusting screw, the positioning pin is arranged on one side of the gun head, the adjusting screw and the gun body The adjusting screw is located at the upper end of the positioning pin, and the bottom of the adjusting screw abuts on the upper end of the positioning pin. The adjusting screw includes a rod and a head. The rod is fixed with an adjusting wheel. A compression spring is arranged between the wheel and the gun body, and the compression spring ring is sleeved on the rod. The gun head is provided with a limit seat corresponding to the adjusting wheel, and the limit seat has an extension in the direction of the adjusting wheel. Strip-shaped protrusions, a plurality of strip-shaped grooves matching the strip-shaped protrusions are evenly distributed on the outer wall of the adjusting wheel, and the strip-shaped protrusions are clamped in the strip-shaped grooves.

In the present invention, first rotate the adjusting screw, and then slightly adjust the distance between the round pipe part of the safety frame and the muzzle of the gun head by positioning, thereby adjusting the nailing depth of the air nail gun, and the bar-shaped protrusion of the limit seat is stuck in the adjustment The wheel-shaped groove can prevent the adjustment screw from shifting during use, accurately control the distance between the muzzle and the safety frame, prevent the adjustment screw from rotating due to the impact force generated during the nailing process, and avoid the nailing depth. The deviation occurs during use, and the positioning is more accurate, without frequent adjustments by the operator.

Description of the drawings

Figure 1 is a schematic structural diagram of an air nail gun with adjustable nailing depth in the present invention;

Fig. 2 is another structural schematic diagram of the air nail gun with adjustable nailing depth in Fig. 1;

FIG. 3 is a schematic diagram of the structure of the air nailing gun A with adjustable nailing depth in FIG. 1; FIG.

Fig. 4 is a structural schematic diagram of a limit seat of an air nail gun with adjustable nailing depth in Fig. 1;

Fig. 5 is another structural schematic view of the limit seat of the air nail gun with adjustable nailing depth in Fig. 4;

Fig. 6 is a structural diagram of an adjusting wheel of an air nail gun with adjustable nailing depth in Fig. 1.

Detailed ways

The accompanying drawings show the technical solutions and embodiments of the present invention. The relevant details and working principles of the embodiments will be further described below in conjunction with the accompanying drawings.

Referring to Figure 1, Figure 2, Figure 3, Figure 4, Figure 5 and Figure 6, the present invention provides an air nail gun with adjustable nailing depth, including a gun head 1, a gun body 2, a magazine device 3, A safety frame 4, an adjusting mechanism and a trigger device 5 are arranged on the gun head. The end of the safety frame 4 has a round tube portion 6 which is sleeved on the muzzle of the gun head 1. The adjustment mechanism includes The positioning pin 7 and the adjusting screw 8 are arranged on the side of the gun head 1. The adjusting screw 8 is threadedly connected with the gun body 2 and can be adjusted up and down. The adjusting screw 8 is located at the upper end of the positioning pin 7. The adjusting screw The bottom of 8 abuts on the upper end of the positioning pin 7.

The adjusting screw 8 includes a rod 9 and a head 10, the head 10 always abuts on the upper end of the positioning pin 7, the rod 9 is fixed with an adjusting wheel 11, the adjusting wheel 11 is preferably elastic material, adjusting A compression spring 12 is arranged between the wheel 11 and the gun body 2, and the compression spring 12 is sleeved on the rod 9. The gun head 1 is provided with a limit seat 13 corresponding to the adjusting wheel 11, and the limit seat 13 includes a vertical portion 14 and a lateral portion 15. The vertical portion 14 is fixed to the side wall of the gun head 1, the lateral portion 15 is fixed to the gun body 2, and the lateral portion 15 is provided with a through hole 16 corresponding to the position of the adjusting screw. The rod 9 of the adjusting screw is threadedly connected to the gun body 2 through the through hole 16. The lower surface of the through hole 16 of the transverse part has an annular convex edge 17, and the compression spring 12 is clamped between the transverse part 15 and the adjusting wheel 11. The top end of the compression spring 12 is sleeved on the annular flange 17. The vertical portion includes a middle portion 18 and two side portions 19, and the two side portions 19 are respectively provided on both sides of the middle portion 18. The portion 19 is arcuate, and the arcuate surface of the side portion 19 is attached to the outer surface of the gun head 1. The limit seat 13 has a strip-shaped protrusion 20 extending in the direction of the adjusting wheel, and the strip-shaped protrusion 20 The diameter of the top is smaller than the width of the bottom. The top of the bar-shaped protrusion is 20 arc-shaped transitions, the bar-shaped protrusion 20 is located in the middle part 18, and the outer wall of the adjusting wheel 11 is evenly distributed with a plurality of strip-shaped protrusions 20 A strip-shaped groove 21 is provided, and the strip-shaped protrusion 20 is clamped in the strip-shaped groove 21.

The pneumatic gun first rotates the adjusting screw 8, and then adjusts the distance between the round tube part 6 of the safety frame and the muzzle of the gun head by positioning a bit 7, thereby adjusting the nailing depth of the pneumatic nail gun, and the bar-shaped protrusion of the limit seat 20 It is stuck in the groove 21 of the adjusting wheel, which can prevent the adjustment screw from shifting during use, accurately control the distance between the muzzle and the safety frame, and prevent the adjustment screw from rotating due to the impact force generated during the nailing process. The nailing depth is shifted during use, and the positioning is more accurate, without frequent adjustments by the operator.

Claims

An air nail gun capable of adjusting the nailing depth includes a gun head, a gun body, a magazine device, a safety frame arranged on the gun head, an adjustment mechanism and a trigger device. The end of the safety frame has a round tube part, so The round tube part is sleeved on the muzzle of the gun head, and the adjusting mechanism includes a positioning pin and an adjusting screw. The positioning pin is arranged on one side of the gun head. The screw is located at the upper end of the positioning pin, and the bottom of the adjusting screw abuts on the upper end of the positioning pin. It is characterized in that: the adjusting screw includes a rod and a head, the rod is fixed with an adjusting wheel, and between the adjusting wheel and the gun body There is a compression spring, the compression spring ring is sleeved on the rod, the gun head is provided with a limit seat corresponding to the adjustment wheel, and the limit seat has a strip-shaped protrusion extending in the direction of the adjustment wheel. The outer wall of the adjusting wheel is evenly distributed with a plurality of strip-shaped grooves matching the strip-shaped protrusions, and the strip-shaped protrusions are clamped in the strip-shaped grooves.
The gas nail gun with adjustable nailing depth according to claim 1, characterized in that: the limit seat includes a vertical part and a lateral part, the vertical part is fixed to the side wall of the gun head, and the lateral part is fixed On the gun body, the transverse part is provided with a through hole corresponding to the position of the adjusting screw, and the rod of the adjusting screw passes through the through hole and is threadedly connected to the gun body.
The air nail gun with adjustable nailing depth according to claim 2, characterized in that: the vertical part includes a middle part and two side parts, and the two side parts are respectively provided on both sides of the middle part, The strip-shaped protrusion is located at the middle part, the side part is arcuate, and the arc surface of the side part is attached to the outer surface of the gun head.
An air nail gun with adjustable nailing depth according to claim 2 or 3, characterized in that: the lower surface of the through hole of the transverse part has an annular convex edge, and the compression spring is clamped between the transverse part and the adjusting wheel , The top end of the compression spring is sleeved on the annular convex edge.
The air nail gun with adjustable nailing depth according to claim 4, wherein the diameter of the top of the strip-shaped protrusion is smaller than the width of the bottom, and the top of the strip-shaped protrusion is curved.
The air nail gun with adjustable nailing depth according to claim 1 or 2 or 3 or 5, characterized in that the adjusting wheel is made of elastic material.