CN210372466U

CN210372466U - Pneumatic quick joint

Info

Publication number: CN210372466U
Application number: CN201921086301.5U
Authority: CN
Inventors: 姚开腾
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-04-21
Anticipated expiration: 2029-07-11

Abstract

The utility model belongs to the technical field of pneumatic connection, in particular to a pneumatic quick connector, which comprises a valve core and an air inlet plug; the valve core is provided with a sliding connecting part and an installation fixing part connected to one end of the sliding connecting part, an airflow channel communicated with the sliding connecting part and the installation fixing part is arranged in the valve core, the outer side wall of the sliding connecting part is provided with an air inlet communicated with the airflow channel, and the air inlet plug is sleeved on the outer side wall of the sliding connecting part and can slide on the sliding connecting part; the mounting and fixing part is provided with an accommodating cavity which is communicated with the airflow channel, a sealing gasket is arranged in the accommodating cavity, and a fixing part for fixing the sealing gasket is further arranged in the accommodating cavity; the fixing piece is connected in the accommodating cavity so as to fix the sealing gasket in the accommodating cavity, and the sealing gasket fixing device is reasonable in structure, high in stability and convenient to install and maintain.

Description

Pneumatic quick joint

Technical Field

The utility model belongs to the technical field of pneumatic connection, especially, relate to a pneumatic quick-operation joint.

Background

The pneumatic quick connector is a quick connecting device for connecting a pneumatic tool and an air source, and is used for supplying compressed air of the air source to the pneumatic tool. The pneumatic quick connector is convenient to disassemble and assemble, has strong universality and is widely applied to various pneumatic tools at present. Among the prior art, pneumatic quick-operation joint design is reasonable inadequately, is not convenient for install pneumatic quick-operation joint to the packing ring that is used for sealing, and the installation is complicated, leads to inefficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic quick-operation joint aims at solving among the prior art pneumatic quick-operation joint and leads to the technical problem of the installation packing ring of being not convenient for because of inner structure is unreasonable.

In order to achieve the above object, an embodiment of the present invention provides a pneumatic quick coupling, which includes a valve core and an air inlet plug; the valve core is provided with a sliding connecting part and an installation fixing part connected to one end of the sliding connecting part, an airflow channel communicated with the sliding connecting part and the installation fixing part is arranged in the valve core, the outer side wall of the sliding connecting part is provided with an air inlet communicated with the airflow channel, and the air inlet plug is sleeved on the outer side wall of the sliding connecting part and can slide on the sliding connecting part; the mounting and fixing part is provided with a containing cavity which is communicated with the airflow channel, a sealing gasket is arranged in the containing cavity, and the containing cavity is also provided with a fixing part for fixing the sealing gasket.

Optionally, the inner side wall of the accommodating cavity is provided with threads, and the fixing piece is connected to the accommodating cavity in a threaded mode.

Optionally, the fixing member is annular, and one end of the fixing member abuts against the top surface of the sealing gasket.

Optionally, the sliding connection portion and the installation fixing portion are both annular, the sliding connection portion and the installation fixing portion are coaxially arranged, and the outer diameter of the sliding connection portion is smaller than that of the installation fixing portion.

Optionally, the air inlet is provided with a plurality of air inlets, each air inlet is uniformly arranged on the outer side wall of the sliding connection portion, and the circle center of the sliding connection portion is located on the cross-section circle of the sliding connection portion

Optionally, a sealing ring is arranged on the outer side wall of the sliding connection portion, and the sealing ring is located between the air inlet and one end, far away from the installation fixing portion, of the sliding connection portion.

Optionally, the air inlet plug slides between an air inlet position and a sealing position, and when the air inlet plug is located at the sealing position, the top surface of the air inlet plug is flush with the top surface of the sliding connection portion.

Optionally, a reinforcement is provided within the sealing gasket.

Optionally, the reinforcement is annular, and the reinforcement is disposed coaxially with the sealing gasket.

Optionally, the bottom surface of the accommodating cavity is arranged obliquely along the inward direction of the periphery, and the sealing gasket is attached to the bottom surface of the accommodating cavity.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the pneumatic quick-operation joint have one of following technological effect at least: the pneumatic quick connector is used for connecting an air source and a pneumatic tool to supply compressed air to the pneumatic tool, the air inlet plug slides to cover or open the air inlet, and the compressed air enters the air flow channel through the air inlet and then enters the pneumatic tool through the air flow channel; the fixing piece is connected in the accommodating cavity so as to fix the sealing gasket in the accommodating cavity, and the sealing gasket fixing device is reasonable in structure, high in stability and convenient to install and maintain.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a pneumatic quick coupling according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a pneumatic quick coupling according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a pneumatic quick coupling according to an embodiment of the present invention.

Fig. 4 is a cross-sectional view of a pneumatic quick coupling according to an embodiment of the present invention.

Fig. 5 is an exploded view of a pneumatic quick coupling according to an embodiment of the present invention.

Fig. 6 is a cross-sectional view of a sealing gasket provided by an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-valve core 11-sliding connection part 12-installation fixing part

13-airflow channel 14-air inlet 15-accommodating cavity

16-sealing gasket 17-fixing part 18-screw thread

19-sealing ring 20-air inlet plug 21-rubber ring

22-spring 160-reinforcement.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-6 are exemplary and intended to be used to illustrate embodiments of the present invention, and should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 to 6, a pneumatic quick coupling is provided, which is characterized by comprising a valve core 10 and an air inlet plug 20; the valve core 10 is provided with a sliding connection part 11 and an installation fixing part 12 connected to one end of the sliding connection part 11, an airflow channel 13 communicating the sliding connection part 11 and the installation fixing part 12 is arranged in the valve core 10, the outer side wall of the sliding connection part 11 is provided with an air inlet 14 communicated with the airflow channel 13, and an air inlet plug 20 is sleeved on the outer side wall of the sliding connection part 11 and can slide on the sliding connection part 11; the mounting and fixing portion 12 is provided with a housing chamber 15, the housing chamber 15 is communicated with the air flow passage 13, a sealing gasket 16 is provided in the housing chamber 15, and the housing chamber 15 is further provided with a fixing member 17 for fixing the sealing gasket 16.

In the utility model, the pneumatic quick connector is used for connecting the air source and the pneumatic tool to provide compressed air for the pneumatic tool, the air inlet plug 20 slides to seal the cover or open the air inlet 14, and the compressed air enters the air flow channel 13 through the air inlet 14 and then enters the pneumatic tool after passing through the air flow channel 13; the fixing part 17 is connected in the accommodating cavity 15 so as to fix the sealing gasket 16 in the accommodating cavity 15, and the sealing gasket is reasonable in structure, high in stability and convenient to install and maintain.

In another embodiment of the present invention, as shown in fig. 3 to 5, the inner sidewall of the accommodating cavity 15 of the pneumatic quick coupling is provided with a thread 18, and the fixing member 17 is connected in the accommodating cavity 15 by the thread 18; through turning round mounting 17 so that mounting 17 can dismantle to be connected in holding chamber 15, stable in structure connects reliably, the dismouting of being convenient for.

In another embodiment of the present invention, as shown in fig. 3 to 4, the fixing member 17 of the pneumatic quick coupling is annular, and one end of the fixing member 17 abuts against the top surface of the sealing gasket 16; when the anchor 17 is connected to the housing chamber 15, the anchor 17 abuts against the gasket 16, and the clearance between the gasket 16 and the bottom surface of the housing chamber 15 is reduced to improve the airtightness of the pneumatic quick coupling.

In another embodiment of the present invention, as shown in fig. 3 to 4, the sliding connection portion 11 and the mounting fixing portion 12 of the pneumatic quick coupling are both circular ring-shaped, the sliding connection portion 11 and the mounting fixing portion 12 are coaxially disposed, and the outer diameter of the sliding connection portion 11 is smaller than the outer diameter of the mounting fixing portion 12; the sliding connection portion 11 and the installation fixing portion 12 are integrally formed, the inner side wall of the air inlet plug 20 is attached to the outer side wall of the sliding connection portion 11, the air inlet plug 20 slides until the air inlet plug contacts with the side face of the fixed connection portion to stop sliding, and the fixed connection portion limits the air inlet plug 20 so that the air inlet plug 20 can slide within a set range.

In another embodiment of the present invention, as shown in fig. 1 to 5, a sealing ring 19 is disposed on the outer side wall of the sliding connection portion 11 of the pneumatic quick coupling, the sealing ring 19 is located between the air inlet 14 and the end of the sliding connection portion 11 far away from the mounting fixing portion 12, so as to prevent the compressed air from leaking from the gap between the sealing plug and the sliding connection portion 11, and further improve the air tightness of the pneumatic quick coupling.

In another embodiment of the present invention, as shown in fig. 5, the air inlets 14 of the pneumatic quick coupling are provided with a plurality of air inlets 14, each air inlet 14 is uniformly disposed on the outer side wall of the sliding connection portion 11, and the circle center of the sliding connection portion 11 is located on the cross-sectional circle of the sliding connection portion 11, and a plurality of air inlets 14 are provided, so that the compressed air can enter the air flow channel 13 quickly, thereby improving the air flow efficiency.

In another embodiment of the present invention, as shown in fig. 1 to 4, the air inlet plug 20 of the pneumatic quick coupling slides between an air inlet position and a sealing position, and when the air inlet plug 20 is in the sealing position, the top surface of the air inlet plug 20 is flush with the top surface of the sliding connection portion 11; when the air inlet plug 20 is in the air inlet position, the air inlet plug 20 is abutted against the mounting and fixing portion 12, when the air inlet plug 20 is in the sealing position, the outer ring portion of the sealing ring 19 is attached to the inner side wall of the air inlet plug 20, the sealing ring 19 is attached to the outer end face of the air inlet plug 20 when the air inlet plug 20 is in the sealing position in the prior art, and the sealing performance is better.

In another embodiment of the present invention, as shown in fig. 3, 4 and 6, a reinforcement member 160 is disposed in the sealing gasket 16 of the pneumatic quick coupling, the reinforcement member 160 is added to improve the strength of the sealing gasket 16, the diversion of the sealing gasket 16 caused by too large air flow is reduced, and the sealing performance and stability of the pneumatic quick coupling are further improved.

In another embodiment of the present invention, as shown in fig. 3, 4 and 6, the reinforcement member 160 of the pneumatic quick coupling is circular ring-shaped, and the reinforcement member 160 is disposed coaxially with the sealing gasket 16, so that the sealing gasket 16 is stressed uniformly, and the stability of the sealing gasket 16 is improved.

In another embodiment of the present invention, the bottom surface of the accommodating cavity 15 of the pneumatic quick coupling is disposed obliquely along the inward direction of the outer periphery, and the sealing gasket 16 is attached to the bottom surface of the accommodating cavity 15; the bottom surface of the accommodating cavity 15 is obliquely arranged, and the sealing gasket 16 generates small deformation after being pressed to the bottom surface of the accommodating cavity 15, so that the sealing gasket 16 is attached to the bottom surface of the accommodating cavity 15 more tightly, and the sealing performance is further improved.

Furthermore, a rubber ring 21 for improving the sealing performance is arranged on the inner side wall of the air inlet plug 20, and the rubber ring 21 is respectively abutted against the inner side wall of the air inlet plug 20 and the outer side wall of the sliding connection part 11, so that the sealing performance between the air inlet plug 20 and the sliding connection part 11 is further improved, and the stability of the pneumatic quick connector is improved; the outer side wall of the air inlet plug 20 is also provided with a rubber ring 21 for improving the sealing performance.

Further, as shown in fig. 1 to 5, a spring 22 is connected to an end of the sliding connection portion 11 away from the mounting fixing portion 12, the spring 22 abuts against an outer housing, and the spring 22 acts on the sliding connection portion 11 to enable the sliding between the valve core 10 and the intake plug 20 to be more stable, and also to play a buffering role.

Furthermore, the reinforcing member 160 of the pneumatic quick coupling is made of aluminum alloy, and has the advantages of low density, high strength, good corrosion resistance and convenience in processing.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A pneumatic quick connector is characterized by comprising a valve core and an air inlet plug; the valve core is provided with a sliding connecting part and an installation fixing part connected to one end of the sliding connecting part, an airflow channel communicated with the sliding connecting part and the installation fixing part is arranged in the valve core, the outer side wall of the sliding connecting part is provided with an air inlet communicated with the airflow channel, and the air inlet plug is sleeved on the outer side wall of the sliding connecting part and can slide on the sliding connecting part; the mounting and fixing part is provided with a containing cavity which is communicated with the airflow channel, a sealing gasket is arranged in the containing cavity, and the containing cavity is also provided with a fixing part for fixing the sealing gasket.

2. The pneumatic quick connector as claimed in claim 1, wherein the inner sidewall of the receiving cavity is provided with a screw thread, and the fixing member is screwed into the receiving cavity.

3. The pneumatic quick connector as claimed in claim 1, wherein the fixing member is annular, and one end of the fixing member abuts against the top surface of the sealing gasket.

4. The pneumatic quick connector according to claim 1, wherein the sliding connection portion and the mounting fixing portion are both annular, the sliding connection portion and the mounting fixing portion are coaxially disposed, and an outer diameter of the sliding connection portion is smaller than an outer diameter of the mounting fixing portion.

5. The pneumatic quick connector as claimed in claim 4, wherein the number of the air inlets is multiple, each air inlet is uniformly arranged on the outer side wall of the sliding connection portion, and the circle center of the sliding connection portion is located on the cross-sectional circle of the sliding connection portion.

6. The pneumatic quick connector according to claim 1, wherein a sealing ring is disposed on an outer side wall of the sliding connection portion, and the sealing ring is located between the air inlet and an end of the sliding connection portion away from the mounting and fixing portion.

7. The pneumatic quick connector as claimed in claim 6, wherein the air inlet plug slides between an air inlet position and a sealing position, and when the air inlet plug is in the sealing position, the top surface of the air inlet plug is flush with the top surface of the sliding connection portion.

8. The pneumatic quick connector as claimed in any one of claims 1 to 7, wherein a reinforcement member is provided in the sealing gasket.

9. The pneumatic quick connector of claim 8, wherein the reinforcement is annular and is disposed coaxially with the sealing gasket.

10. The pneumatic quick connector as claimed in claim 1, wherein the bottom surface of the receiving cavity is inclined in an inward direction from the outer circumference, and the sealing gasket is attached to the bottom surface of the receiving cavity.