CN212330859U

CN212330859U - Pneumatic tool air pressure adjusting structure and pneumatic tool

Info

Publication number: CN212330859U
Application number: CN201922242887.6U
Authority: CN
Inventors: 路蕴华
Original assignee: WUXI MACMARTIN TORQUE SETTING ASSEMBLY TOOLS CO LTD
Current assignee: WUXI MACMARTIN TORQUE SETTING ASSEMBLY TOOLS CO LTD
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2021-01-12
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a pneumatic tool atmospheric pressure adjusts structure and pneumatic tool. The pneumatic tool air pressure adjusting structure is arranged at the exhaust end of the pneumatic tool, is of a double-pipe structure and comprises an outer pipe and an inner pipe, the outer diameter of the outer pipe is 8-12 mm, and the inner pipe is rotatably attached to the inner wall of the outer pipe. A plurality of vent holes are uniformly arranged on the outer pipe and the inner pipe, the vent holes are circular, and the diameter of the vent holes is 4-6 mm. The end of the outer pipe is provided with an adjusting part which protrudes out of the inner pipe, and the screwdriver is connected with the adjusting part to drive the outer pipe to rotate relative to the inner pipe. The utility model discloses in, use instrument fixed connection regulation portion commonly used such as screwdriver, rotatory outer tube, when the exhaust hole coincidence of outer tube and inner tube, pneumatic tool's displacement is the biggest, and along with rotation angle difference, the coincidence area in the exhaust hole of outer tube and inner tube is different, and the displacement also changes thereupon. In the pneumatic tool, the change of the flow of the exhaust channel is changed by using the adjusting device, so that the exhaust pressure is changed, and different output torques and rotating speeds are achieved.

Description

Pneumatic tool air pressure adjusting structure and pneumatic tool

Technical Field

The utility model relates to a pneumatic spanner field especially relates to a pneumatic tool air pressure adjusting structure and pneumatic tool.

Background

In the related art, the torque of the pneumatic impact wrench cannot be controlled, and the screw is often broken due to too large torque or cannot be tightened due to too small torque.

The pneumatic constant-torque tool utilizes the clutch lever to realize the adjustment of torque, but the device has complex structure and high manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The pneumatic tool air pressure adjusting structure provided by the embodiment of the utility model is arranged at the exhaust end of the pneumatic tool, is a double-pipe structure and comprises an outer pipe and an inner pipe, the outer diameter of the outer pipe is 8-12 mm, and the inner pipe is rotationally attached to the inner wall of the outer pipe;

a plurality of vent holes are uniformly formed in the outer pipe and the inner pipe, the vent holes are circular, and the diameter of the vent holes is 4-6 mm;

the end of the outer pipe is provided with an adjusting part which protrudes out of the inner pipe, and the screwdriver is connected with the adjusting part to drive the outer pipe to rotate relative to the inner pipe.

The utility model discloses in, use instrument fixed connection regulation portion commonly used such as screwdriver, rotatory outer tube, when the exhaust hole coincidence of outer tube and inner tube, pneumatic tool's displacement is the biggest, and along with rotation angle difference, the coincidence area in the exhaust hole of outer tube and inner tube is different, and the displacement also changes thereupon. In the pneumatic tool, the change of the flow of the exhaust channel is changed by using the adjusting device, so that the exhaust pressure is changed, and different output torques and rotating speeds are achieved.

Furthermore, the number of the exhaust holes in the outer pipe is the same as that of the exhaust holes in the inner pipe, and the corresponding exhaust holes can be overlapped after the outer pipe rotates.

Further, there are 10 exhaust holes on the outer tube and the inner tube, respectively.

Further, the outer pipe and the inner pipe are made of a copper material.

A pneumatic tool comprising a pneumatic tool air pressure adjustment structure as claimed in any preceding claim, the pneumatic tool air pressure adjustment structure being provided at an exhaust end of the pneumatic tool.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic plan view of an outer tube of a pneumatic tool air pressure adjusting structure according to an embodiment of the present invention;

fig. 2 is a schematic plan view of an inner tube of the pneumatic tool air pressure adjusting structure according to the embodiment of the present invention;

fig. 3 is a schematic perspective view of an air pressure adjusting structure of a pneumatic tool according to an embodiment of the present invention.

Detailed Description

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 3, an air pressure adjusting structure of a pneumatic tool according to an embodiment of the present invention is disposed at an exhaust end of the pneumatic tool, and has a double-tube structure, including an outer tube 1 and an inner tube 2, wherein an outer diameter of the outer tube 1 is 8 to 12 mm, and the inner tube 2 is rotatably attached to an inner wall of the outer tube 1. A plurality of vent holes 3 are uniformly arranged on the outer tube 1 and the inner tube 2, the vent holes 3 are circular, and the diameter is 4-6 mm. The end of the outer tube 1 is provided with an adjusting part 4, the adjusting part 4 protrudes out of the inner tube 2, and the screwdriver is connected with the adjusting part 4 to drive the outer tube 1 to rotate relative to the inner tube 2.

The utility model discloses in, use instrument fixed connection regulating part 4 commonly used such as screwdriver, rotatory outer tube 1, when the exhaust hole 3 coincidence of outer tube 1 and inner tube 2, pneumatic tool's displacement is the biggest, and along with the rotation angle is different, the coincident area of the exhaust hole 3 of outer tube 1 and inner tube 2 is different, and the displacement also changes thereupon. In the pneumatic tool, the change of the flow of the exhaust channel is changed by using the adjusting device, so that the exhaust pressure is changed, and different output torques and rotating speeds are achieved.

Specifically, the utility model discloses regulation portion 4 among the embodiment is located the tip of outer tube 1, and wall thickness is less than outer tube 1, the screwdriver operation of being convenient for.

There is no need to leave a gap between the outer tube 1 and the inner tube 2, as long as the outer tube 1 and the inner tube 2 can rotate relatively. Meanwhile, air leakage between the outer pipe 1 and the inner pipe 2 is avoided, and the adjusting effect is influenced.

Further, the number of the exhaust holes 3 on the outer tube 1 is the same as that of the exhaust holes 3 on the inner tube 2, and the corresponding exhaust holes 3 can be overlapped after the outer tube 1 rotates. So, outer tube 1 and inner tube 2 simple structure, the same manufacturing of also being convenient for of the size and the figure of exhaust hole 3 greatly improves production efficiency.

Further, there are 10 exhaust holes 3 on the outer tube 1 and the inner tube 2, respectively. 10 exhaust holes 3 enable the exhaust adjusting range of the pneumatic tool to be large, and various use requirements can be met.

Further, the outer tube 1 and the inner tube 2 are made of a copper material. The outer pipe 1 and the inner pipe 2 made of copper materials can effectively slow down abrasion caused by relative rotation between the outer pipe 1 and the inner pipe 2.

A pneumatic tool comprising a pneumatic tool air pressure adjustment arrangement as claimed in any one of the preceding claims, said pneumatic tool air pressure adjustment arrangement being provided at the exhaust end 5 of the pneumatic tool.

The utility model provides a pneumatic tool structure simplifies greatly, and manufacturing cost obtains further control, and the exhaust noise is also lower.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The pneumatic tool air pressure adjusting structure is arranged at the exhaust end of the pneumatic tool and is characterized by being of a double-pipe structure and comprising an outer pipe (1) and an inner pipe (2), wherein the outer diameter of the outer pipe is 8-12 mm, the inner pipe is rotatably attached to the inner wall of the outer pipe,

a plurality of vent holes (3) are uniformly arranged on the outer pipe and the inner pipe, the vent holes are circular, the diameter is 4-6 mm,

the end of the outer pipe is provided with an adjusting part (4), the adjusting part protrudes out of the inner pipe, and the screwdriver is connected with the adjusting part to drive the outer pipe to rotate relative to the inner pipe.

2. The pneumatic tool air pressure adjusting structure of claim 1, wherein the number of the air vent holes on the outer tube and the size of the air vent holes on the inner tube are the same, and the corresponding air vent holes can be overlapped after the outer tube is rotated.

3. The pneumatic tool air pressure adjusting structure according to claim 2, wherein the number of the vent holes in the outer tube and the inner tube is 10 respectively.

4. The pneumatic tool air pressure adjusting structure according to claim 1, wherein the outer tube and the inner tube are made of a copper material.

5. Pneumatic tool, characterized in that it comprises a pneumatic tool air pressure regulating structure according to any of claims 1-4, which is arranged at the air discharge end (5) of the pneumatic tool.