CN209364542U - A kind of Pneumatic impact tool - Google Patents

Abstract

The embodiment of the utility model discloses a pneumatic impact tool, which includes a pneumatic riveting gun and a loose assembly installed on the pneumatic riveting gun. The lower pressing part is composed of an inner cylinder, a return spring, a rotating shaft, an adapter and a loosening head. The outer wall of the inner cylinder is provided with a V-shaped hole with a concave part facing the assembly port. The return The position spring is set in the inner cylinder, one end of the rotating shaft is placed in the inner cylinder and contacts the end of the return spring, and the other end extends out of the inner cylinder along the assembly port, and the adapter is installed on the outer surface of the rotating shaft On the end, the loosening head is installed on the adapter, and the first pin shaft which is movably arranged in the V-shaped hole is affixed to the inner end of the rotating shaft. In the embodiment of the utility model, the rapid impact of the pneumatic riveting gun is used to generate a large torque on the rotating shaft, so as to quickly loosen the screws, facilitate the disassembly of the fasteners, and effectively improve the working efficiency.

Description

A pneumatic impact tool

technical field

The embodiment of the utility model relates to the technical field of assembly tools, in particular to a pneumatic impact tool.

Background technique

The installation of electrical and electronic devices generally has two installation methods: welding and screw connection. The existing screw installation of electrical and electronic devices mainly uses a screwdriver to tighten the screws and bolts, making the assembly and disassembly of the workpiece more convenient and quicker.

However, in order to ensure the firmness of the workpiece assembly, the screws are usually tightened with a larger torque to make it difficult to loosen, resulting in the need for a larger torque to loosen the screws during disassembly, which is inconvenient to operate.

Utility model content

For this reason, the embodiment of the utility model provides a pneumatic impact tool to solve the problem in the prior art that the fastened screws are not easy to loosen when disassembling and assembling workpieces.

In order to achieve the above object, the embodiment of the utility model provides the following technical solution: the pneumatic impact tool includes a pneumatic riveting gun and a loose assembly installed on the pneumatic riveting gun, and the loose assembly is fixedly installed on the riveting tube of the pneumatic riveting gun It consists of an outer cylinder and a pressing piece that is movably installed in the outer cylinder. The pressing piece includes an inner cylinder, a return spring, a rotating shaft, an adapter and a loosening head. The inner cavity of the inner cylinder is far away from the pneumatic riveting gun. An assembly opening is formed on one end of the inner cylinder, and the other end is placed in the riveting tube of the pneumatic riveting gun. A V-shaped hole with a concave portion facing the assembly opening is opened on the outer wall of the inner cylinder close to the assembly opening, and the V-shaped hole is connected to the inner tube. In the cylinder cavity of the cylinder, the return spring is arranged in the inner cylinder, one end of the rotating shaft is placed in the inner cylinder and contacts the end of the return spring, and the other end extends out of the inner cylinder along the assembly port, so The adapter is installed on the outer end of the rotating shaft, the loosening head is installed on the adapter, and the inner end of the rotating shaft is fixedly connected with a first pin shaft which is movably arranged in the V-shaped hole.

The utility model embodiment is also characterized in that a push shaft for contacting the pneumatic piston in the pneumatic riveting gun is fixedly connected to the end of the inner cylinder away from the assembly port.

The utility model embodiment is also characterized in that the outer cylinder is screwed to the riveting tube of the pneumatic riveting gun, and the outer wall of the outer cylinder is screwed with a positioning screw for contacting the riveting tube.

The utility model embodiment is also characterized in that the outer wall of the middle part of the outer cylinder is provided with a first pin hole connected to the cavity of the outer cylinder, and the outer wall of the inner cylinder is provided with a second pin hole, and A second pin shaft is provided to fit in the first pin shaft hole and the second pin shaft hole for fixedly connecting the outer cylinder and the inner cylinder.

The embodiment of the utility model is also characterized in that the second pin hole is an elongated hole.

The utility model embodiment is also characterized in that an annular groove is formed on the outer wall of the middle part of the outer cylinder along the peripheral wall of the outer cylinder, and a spring ring is fitted in the ring groove, and a ring is formed on the spring ring to match the second ring. A pin hole matches the through hole.

The utility model embodiment has the following advantages: based on the configuration of the pneumatic riveting gun, the loose assembly assembled on the pneumatic riveting gun includes inner and outer cylinders respectively arranged, and on the basis of the inner cylinder, a return spring, a rotating shaft, a rotating Joints and loosening heads, by installing the outer cylinder on the riveting tube of the pneumatic riveting gun, the inner cylinder is movably connected in the outer cylinder, and a V-shaped hole is opened on the outer wall of the inner cylinder, so that the assembled impact tool has the inner cylinder The first pin on the inner rotating shaft just fits in the front end of the V-shaped hole. When you need to loosen the screw, you only need to align the loosening head with the screw and start the pneumatic riveting gun. The piston in the pneumatic riveting gun will push the inner cylinder down. Press, so that the first pin on the rotating shaft will move along the contour of the V-shaped hole from the front end of the V-shaped hole to the convex point of the V-shaped hole, so that the rotating shaft will rotate, and the adapter and the loosening head will be driven to rotate in turn. , using the rapid impact of the pneumatic riveting gun to generate a large torque on the rotating shaft, thereby quickly loosening the screw, and then loosening the screw with a conventional screwdriver and other tools, so that the embodiment of the utility model is based on mechanical drive, which facilitates the disassembly of fasteners. The utility model has the advantages of simple structure, convenient operation and effective improvement of working efficiency.

Description of drawings

In order to more clearly illustrate the implementation of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the implementation or the prior art. Apparently, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creative work.

The structures, proportions, sizes, etc. shown in this manual are only used to cooperate with the content disclosed in the manual for the understanding and reading of those who are familiar with this technology, and are not used to limit the limited conditions that the utility model can be implemented, so there is no In technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the invention disclosed in the utility model without affecting the effect and purpose of the utility model. within the scope of the technical content.

Figure 1 is a schematic diagram of the overall structure of a pneumatic impact tool provided by an embodiment of the present invention;

Fig. 2 is a schematic exploded view of the structure of a pneumatic impact tool provided by the embodiment of the present invention;

Fig. 3 is an exploded schematic diagram of the structure of the pressing part of a pneumatic impact tool provided by the embodiment of the present invention.

In the figure: 1. Pneumatic riveting gun; 2. Loose assembly; 21. Outer cylinder; 211. First pin hole; 212. Annular groove; V-shaped hole; 2213, push shaft; 2214, second pin hole; 222, return spring; 223, rotating shaft; 2231, first pin; 224, adapter; 225, loose head; 3, positioning screw; 4, the second pin shaft; 5, the spring ring; 51, the through hole.

Detailed ways

The implementation of the present utility model is illustrated by specific specific examples below. Those who are familiar with this technology can easily understand other advantages and effects of the present utility model from the contents disclosed in this description. Obviously, the described embodiments are the embodiment of the present utility model. Some, but not all, embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

As shown in FIG. 1 and FIG. 2 , the embodiment of the utility model provides a pneumatic impact tool, which includes a pneumatic riveting gun 1 and a loosening assembly 2 installed on the pneumatic riveting gun 1 . Pneumatic riveting gun 1 adopts gun body without hammer, and loose assembly 2 is composed of outer cylinder 21 fixedly installed on the riveting tube of pneumatic riveting gun 1 and lower pressing part 22 installed in outer cylinder 21 movably, wherein outer cylinder 21 and pneumatic riveting The riveting tube of the riveting gun 1 is threadedly connected, and on the outer wall of the outer cylinder 21, a positioning screw 3 for contacting the riveting tube is screwed, so that the outer cylinder 21 is more firmly installed on the riveting tube to avoid falling off; and the pressing part 22 includes an inner cylinder 221 sequentially arranged in the outer cylinder 21, a return spring 222, a rotating shaft 223, an adapter 224 and a loosening head 225 (refer to FIG. 3 ).

As mentioned above, the inner cylinder 221 is movably connected in the outer cylinder 21. Specifically, the outer wall of the middle part of the outer cylinder 21 is provided with a first pin hole 211 connected to the cavity of the outer cylinder 21, and the outer wall of the inner cylinder 221 is provided with a The second pin shaft hole 2214 is provided with the second pin shaft 4 fitted in the first pin shaft hole 211 and the second pin shaft hole 2214 for fixedly connecting the outer cylinder 21 and the inner cylinder 221 . An annular groove 212 is also provided along the peripheral wall of the outer cylinder 21 on the outer wall of the middle part of the outer cylinder 21, so that the first pin hole 211 on the outer cylinder 21 is placed in the annular groove 212, and is fitted and sleeved in the annular groove 212. The rotatable spring ring 5 is also provided with a through hole 51 matching the first pin hole 211 on the spring ring 5, so that the spring ring 5 is rotated so that the through hole 51 overlaps with the first pin hole 211, and the second The second pin shaft 4 is loaded into the outer cylinder 21 along the first pin shaft hole 211, and then the spring ring 5 is rotated to move the through hole 51 to close the first pin shaft hole 211, thereby fixing the second pin shaft 4, so that the inner cylinder 221 and The outer cylinder 21 is firmly connected, wherein the second pin hole 2214 is an elongated hole, so that when the inner cylinder 221 is pressed down with the pneumatic riveting gun 1 , the inner cylinder 221 can be stretched and moved within the outer cylinder 21 .

The inner cavity of the inner cylinder 221 is formed with an assembly opening 2211 on one end of the inner cylinder 221 away from the pneumatic riveting gun 1, and the other end of the inner cylinder 221 is placed in the riveting tube of the pneumatic riveting gun 1, and the inner cylinder 221 is far away from the assembly opening One end of 2211 is fixedly connected with a push shaft 2213 for contacting the pneumatic piston in the pneumatic riveting gun 1, so that the piston in the pneumatic riveting gun 1 pushes the pushing shaft 2213 to drive the inner cylinder 221 to do telescopic movement in the outer cylinder 21. On the outer wall of the inner cylinder 221 close to the assembly port 2211, there is also a V-shaped hole 2212 with a concave portion facing the assembly port 2211, and the V-shaped hole 2212 is connected to the cylinder cavity of the inner cylinder 221, and the return spring 222 is arranged in the inner cylinder 221 One end of the rotating shaft 223 is placed in the inner cylinder 221 and contacts the end of the return spring 222, the other end extends out of the inner cylinder 221 along the assembly port 2211, and a movable device is fixed on the inner end of the rotating shaft 223 The first pin shaft 2231 in the V-shaped hole 2212 fixes the rotating shaft 223 so that the rotating shaft 223 will not be ejected under the action of the return spring 222 . Install the adapter 223 on the outer end of the rotating shaft 223, and install the loose head 225 on the adapter 223, wherein the loose head 225 can be selected as a bit to form a pneumatic impact screwdriver, and the bit can be selected according to the type of screw to be tightened It is straight, cross, Pozi, star, square, hexagonal, Y-shaped, etc., and you can also choose a socket head to form a pneumatic impact wrench, so that when you need to remove fasteners such as screws, you only need to loosen them. Align the head 225 with the fastener and start the pneumatic riveting gun 1, the piston in the pneumatic riveting gun 1 will push the inner cylinder 221 down, so that the first pin shaft 2231 on the rotating shaft 223 will follow the contour of the V-shaped hole 2212 from The front end of the V-shaped hole 2212 moves to the convex point of the V-shaped hole 2212, so that the rotating shaft 223 rotates, and in turn drives the adapter 224 and the loosening head 225 to rotate, and the rapid impact of the pneumatic riveting gun 1 causes the rotating shaft 223 to generate a relatively high pressure. Large torque, so as to quickly loosen the fasteners, and then loosen the fasteners with tools such as conventional screwdrivers, so that the embodiment of the utility model is based on mechanical drive, which facilitates the disassembly of the fasteners. Its structure is simple, easy to operate, and effectively improves work efficiency.

Although the utility model has been described in detail with general description and specific examples above, some modifications or improvements can be made on the basis of the utility model, which will be obvious to those skilled in the art. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the utility model all belong to the protection scope of the utility model.

Claims (6)

1. a kind of Pneumatic impact tool, it is characterised in that: the Pneumatic impact tool includes pneumatic riveting gun (1) and is mounted on pneumatic Loosening component (2) on riveting gun (1), loosen component (2) are by the outer cylinder (21) that is fixedly mounted on pneumatic riveting gun (1) riveting pipe With pressing member (22) composition being movably arranged in outer cylinder (21), the pressing member (22) includes inner cylinder (221), return spring (222), rotary shaft, adapter and loosening head (225), the inner cavity of the inner cylinder (221) is in inner cylinder (221) far from pneumatic riveting gun (1) it is formed on one end installation opening (2211), the other end is placed in the riveting pipe of pneumatic riveting gun (1), the inner cylinder (221) V shaped hole (2212) of the recess portion towards installation opening (2211), the V shaped hole are offered on the outer wall of installation opening (2211) (2212) it is connected in the barrel chamber of inner cylinder (221), return spring (222) setting is interior in inner cylinder (221), the rotary shaft One end is placed in inner cylinder (221) and contacts on the end of return spring (222), and the other end stretches out inner cylinder along installation opening (2211) (221), the adapter is mounted on the outer end of rotary shaft, and the loosening head (225) is mounted on adapter, and in rotary shaft Inner end on be connected with the first pin shaft (2231) being movably arranged in V shaped hole (2212).

2. a kind of Pneumatic impact tool according to claim 1, it is characterised in that: the inner cylinder (221) is far from installation opening (2211) impeller-hub (2213) for contacting pneumatic riveting gun (1) interior air rammer is connected on one end.

3. a kind of Pneumatic impact tool according to claim 1, it is characterised in that: the outer cylinder (21) and pneumatic riveting gun (1) riveting pipe screw thread connection, and be threaded on the outer wall of outer cylinder (21) for contacting the positioning screw on riveting pipe (3)。

4. a kind of Pneumatic impact tool according to claim 1, it is characterised in that: on the outer wall in the middle part of the outer cylinder (21) The first pin shaft hole (211) being connected in outer cylinder (21) barrel chamber is offered, offers the second pin on the outer wall of the inner cylinder (221) Axis hole (2214), and be equipped with the second pin shaft (4) and be assemblied in the first pin shaft hole (211) and the second pin shaft hole (2214) for fixing Connect outer cylinder (21) and inner cylinder (221).

5. a kind of Pneumatic impact tool according to claim 4, it is characterised in that: second pin shaft hole (2214) is length Type hole.

6. a kind of Pneumatic impact tool according to claim 4, it is characterised in that: on the outer wall in the middle part of the outer cylinder (21) It being offered annular groove (212) along the circumferential wall of outer cylinder (21), cooperation is socketed with spring ring (5) in the annular groove (212), and It is offered on spring ring (5) and the first pin shaft hole (211) matched through-hole (51).