CN220453036U

CN220453036U - Quarter check valve

Info

Publication number: CN220453036U
Application number: CN202322046638.6U
Authority: CN
Inventors: 王勤琪
Original assignee: Ningbo Qixing Pneumatic Technology Co ltd
Current assignee: Ningbo Qixing Pneumatic Technology Co ltd
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-02-06
Anticipated expiration: 2033-08-01

Abstract

The utility model discloses a quarter check valve, which comprises a valve body, wherein the valve body comprises a connecting sleeve and a connecting inner pipe, the connecting inner pipe is positioned in the connecting sleeve, four extrusion columns are hinged in the connecting sleeve along a circumferential method, one side of each extrusion column is fixedly provided with a spring, one end of each spring is fixedly connected with the inner wall of the connecting sleeve, one side of each extrusion column is fixedly provided with a poking piece, the poking pieces are hinged with the connecting sleeve through the same hinge, and one end of each poking piece penetrates out of the connecting sleeve; according to the utility model, the pipeline is inserted into the outer side of the connecting inner pipe, and the pipeline is extruded by the reaction force of the spring at one side of the extrusion column to replace threaded connection, so that the phenomenon that the pipeline cannot be unscrewed due to corrosion is avoided; according to the utility model, the poking plate is fixedly arranged on one side of the extrusion column, and when the pipeline is taken out, the poking plate is manually poked to draw out the pipeline, so that the effect of rapid insertion and extraction is realized.

Description

Quarter check valve

Technical Field

The utility model relates to a one-way valve, in particular to a quarter one-way valve.

Background

The one-way valve is commonly called as a one-way valve, wherein fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back. One-way valves are also known as check valves or non-return valves. The hydraulic valve is used for preventing the reverse flow of oil flow in a hydraulic system or compressed air in a pneumatic system, and the quarter check valve is a check valve with the caliber of 6 mm.

At present, the mode between this kind of check valve of current and the pipeline is threaded connection, and the phenomenon of corrosion probably appears after long-term use, and then is difficult to unscrew it with the pipeline, therefore this application has put forward a quarter check valve and has solved this problem.

Disclosure of Invention

The utility model aims to provide a quarter check valve so as to solve the problems that the conventional check valve and a pipeline are in threaded connection, rust phenomenon possibly occurs after long-term use, and the check valve and the pipeline are difficult to unscrew.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the quarter check valve comprises a valve body, wherein the valve body comprises a connecting sleeve and a connecting inner pipe, the connecting inner pipe is positioned inside the connecting sleeve, four extrusion columns are hinged inside the connecting sleeve along a circumferential method, one side of each extrusion column is fixedly provided with a spring, one end of each spring is fixedly connected with the inner wall of the connecting sleeve, one side of each extrusion column is fixedly provided with a poking piece, the poking pieces are hinged with the connecting sleeve through the same hinge, one end of each poking piece penetrates out of the connecting sleeve, and one end of each extrusion column is fixedly provided with a plug.

As still further aspects of the utility model: the connecting sleeve is provided with four rotating grooves for the pulling piece to penetrate out, and the two sides of the inner part of the rotating grooves are both in inclined design.

As still further aspects of the utility model: one side of the plug is in a circular arc design.

As still further aspects of the utility model: the outside embedding of connecting the inner tube is fixed mounting and is had the rubber circle.

As still further aspects of the utility model: the top surface of the rubber ring is flush with the outer surface of the connecting inner tube.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the pipeline is inserted into the outer side of the connecting inner pipe, the pipeline is extruded by the reaction force of the spring at one side of the extrusion column to replace threaded connection, and meanwhile, the plug is clamped into the clamping groove on the pipeline to prevent the pipeline from being pulled out by the drag force, so that the phenomenon that the pipeline cannot be unscrewed due to corrosion is avoided.

2. According to the utility model, the poking plate is fixedly arranged on one side of the extrusion column, and when the pipeline is taken out, the poking plate is manually poked to draw out the pipeline, so that the effect of rapid insertion and extraction is realized.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a partial cross-sectional view of the present utility model.

Fig. 3 is a side view of the present utility model.

Fig. 4 is an enlarged view of the utility model at a in fig. 2.

Fig. 5 is a schematic view of a mounting structure in the present utility model.

1. A connection sleeve; 2. a pulling piece; 3. a valve body; 4. connecting the inner tube; 5. a rotary groove; 6. an extrusion column; 7. a plug; 8. a rubber ring; 9. and (3) a spring.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, in the embodiment of the utility model, the quarter check valve comprises a valve body 3, the valve body 3 comprises a connecting sleeve 1 and a connecting inner tube 4, the connecting inner tube 4 is positioned inside the connecting sleeve 1, four extrusion columns 6 are hinged inside the connecting sleeve 1 along a circumferential method, a spring 9 is fixedly arranged on one side of each extrusion column 6, one end of each spring 9 is fixedly connected with the inner wall of the connecting sleeve 1, a pulling piece 2 is fixedly arranged on one side of each extrusion column 6, the pulling pieces 2 are hinged with the connecting sleeve 1 through the same hinge, one end of each pulling piece 2 penetrates out of the connecting sleeve 1, and a plug 7 is fixedly arranged on one end of each extrusion column 6.

Four rotating grooves 5 used for the pulling piece 2 to penetrate out are formed in the connecting sleeve 1, and two sides of the inner portion of the rotating grooves 5 are of inclined design, so that the pulling piece 2 can be rotated conveniently.

One side of the plug 7 is arc-shaped.

The rubber ring 8 is fixedly embedded in the outer side of the connecting inner pipe 4, so that the tightness of connection with a pipeline is further improved.

The top surface of the rubber ring 8 is flush with the outer surface of the connecting inner pipe 4, so that a protruding gap is prevented from being formed between the pipeline and the connecting inner pipe 4.

The working principle of the utility model is as follows:

when the pipe connecting sleeve is used, a clamping groove is formed in a spliced pipeline, the pipeline is inserted into the connecting sleeve 1 and positioned at the outer side of the connecting inner pipe 4, the extrusion column 6 is pushed to rotate around a hinge joint of the connecting sleeve 1 in the process of pipeline insertion, the spring 9 is extruded by the motion of the extrusion column 6, meanwhile, the pulling piece 2 fixedly connected with the extrusion column 6 is driven to rotate in the rotating groove 5, the second spring 11 is extruded by the motion of the pulling piece 2, when one end of the pipeline is abutted to one side of the valve body 3 positioned in the connecting sleeve 1, the extrusion column 6 rebounds to extrude the pipeline under the action of the spring 9, meanwhile, the plug 7 is clamped into the clamping groove in the pipeline to prevent the pipeline from being pulled out by a dragging force, stable installation is realized, and when the pipeline is pulled out, the two pulling pieces 2 are actively to enable the extrusion column 6 to rotate, and then the pipeline can be pulled out.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Quarter check valve, including valve body (3), its characterized in that: the valve body (3) comprises a connecting sleeve (1) and a connecting inner tube (4), the connecting inner tube (4) is located inside the connecting sleeve (1), four extrusion columns (6) are hinged inside the connecting sleeve (1) along a circumferential method, one side of each extrusion column (6) is fixedly provided with a spring (9), one end of each spring (9) is fixedly connected with the inner wall of the connecting sleeve (1), one side of each extrusion column (6) is fixedly provided with a poking piece (2), the poking pieces (2) are hinged with the connecting sleeve (1) through the same hinged part, one end of each poking piece (2) penetrates out of the connecting sleeve (1), and one end of each extrusion column (6) is fixedly provided with a plug (7).

2. The quarter check valve according to claim 1, wherein: four rotating grooves (5) used for the pulling piece (2) to penetrate out are formed in the connecting sleeve (1), and two sides of the inner portion of the rotating grooves (5) are of inclined design.

3. The quarter check valve according to claim 1, wherein: one side of the plug (7) is in a circular arc design.

4. The quarter check valve according to claim 1, wherein: the outer side of the connecting inner pipe (4) is embedded and fixedly provided with a rubber ring (8).

5. The quarter check valve according to claim 4, wherein: the top surface of the rubber ring (8) is flush with the outer surface of the connecting inner tube (4).