Vacuum check valve for water supply system of motor home

Abstract

The utility model provides a vacuum check valve of a motor home water supply system, and belongs to the technical field of valves. The problem that a check valve element in a vacuum check valve of an existing motor home water supply system is low in installation efficiency is solved. The vacuum check valve of the motor home water supply system comprises a valve body with a pipeline, a check valve element assembly is clamped in the pipeline of the valve body, the check valve element assembly is composed of a valve shell, a valve element element and a spring, the valve element element and the spring are arranged in the valve shell, the check valve element assembly is integrally assembled and formed, and a clamping section is arranged on the valve shell. A plurality of inverted buckles which are opened outwards and have an elastic effect are formed on the clamping section, elastic grooves are formed in the positions, corresponding to the inverted buckles, of the clamping section, and clamping grooves allowing the inverted buckles to be clamped in are formed in the inner wall of the pipeline. The utility model has the advantage of improving the installation efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, relates to a check valve, and particularly relates to a vacuum check valve for a water supply system of a recreational vehicle. Background Art

[0002] At present, the check valve core assembly in the vacuum check valve of the water supply system of a recreational vehicle needs to be assembled with parts one by one inside, such as structures like springs and fixed seats, all of which need to be assembled into the valve body one by one. The assembly is rather troublesome and affects the efficiency. Summary of the Invention

[0003] The purpose of the utility model is to provide a vacuum check valve for a water supply system of a recreational vehicle that is convenient for installing a check valve core in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A vacuum check valve for a water supply system of a recreational vehicle includes a valve body with a pipeline. It is characterized in that a check valve core assembly is clamped in the pipeline of the valve body. The check valve core assembly is composed of a valve shell, a valve core element arranged in the valve shell, and a spring. The check valve core assembly is integrally assembled and formed. The valve shell has a clamping section, and several elastic buckles that expand outwards and have an elastic effect are formed on the clamping section. Elastic grooves are provided at positions corresponding to each buckle on the clamping section, and clamping grooves for the buckles to be inserted into are opened on the inner wall of the pipeline.

[0005] In the above-mentioned vacuum check valve for a water supply system of a recreational vehicle, a support ring and a gasket are sequentially arranged in the pipeline between it and the check valve. A sealing ring is provided between the support ring and the pipeline. The valve shell abuts against the support ring, and the gasket is located between the valve shell and the support ring.

[0006] In the above-mentioned vacuum check valve for a water supply system of a recreational vehicle, a handwheel is connected to the top of the valve body, and several anti-slip grooves are opened on the peripheral wall of the handwheel.

[0007] Compared with the prior art, the vacuum check valve for a water supply system of this recreational vehicle has the advantages of being convenient for installing a check valve core and improving the installation efficiency. Brief Description of the Drawings

[0008] Figure 1 is a three-dimensional view of the vacuum check valve for a water supply system of this recreational vehicle.

[0009] Figure 2 is a cross-sectional view of the vacuum check valve for a water supply system of this recreational vehicle.

[0010] Figure 3 is a three-dimensional view of the check valve core assembly.

[0011] In the figure, 1 is a pipeline; 2 is a valve body; 3 is a valve housing; 4 is a valve core element; 5 is a spring; 6 is a clamping section; 7 is an undercut; 8 is an elastic groove; 9 is a clamping groove; 10 is a support ring; 11 is a gasket; 12 is a sealing ring; 13 is a handwheel; 14 is an anti-slip groove. Detailed implementation mode

[0012] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0013] As Figure 1 , Figure 2 , Figure 3 shown, the vacuum check valve of the water supply system of this recreational vehicle includes a valve body 2 having a pipeline 1, and a check valve core assembly is clamped in the pipeline 1 of the valve body 2. The check valve core assembly is composed of a valve housing 3, a valve core element 4 arranged in the valve housing 3, and a spring 5. The check valve core assembly is integrally assembled and formed, and all the accessories of the check valve core assembly are assembled. There is no need to access the pipeline 1 in sequence for each component. The valve housing 3 has a clamping section 6, and a number of outwardly expanding and elastically effective undercuts 7 are formed on the clamping section 6. Elastic grooves 8 are provided at positions corresponding to each undercut 7 on the clamping section 6. A clamping groove 9 for the undercut 7 to be clamped into is opened on the inner wall of the pipeline 1. When installing the check valve core assembly, the undercuts 7 on the valve housing 3 move along the inner wall of the pipeline 1, and the undercuts 7 recover towards the elastic grooves 8 due to the elastic effect until they move to the position of the clamping groove 9. Then, the undercuts 7 are supported outwards again due to the elastic support effect and are clamped into the clamping groove 9 to form the clamping of the check valve core assembly.

[0014] Preferably, a support ring 10 and a gasket 11 are sequentially arranged in the pipeline 1 and between it and the check valve. A sealing ring 12 is arranged between the support ring 10 and the pipeline 1. The valve housing 3 abuts against the support ring 10, and the gasket 11 is located between the valve housing 3 and the support ring 10.

[0015] Preferably, a handwheel 13 is connected to the top of the valve body 2, and a number of anti-slip grooves 14 are opened on the circumferential wall of the handwheel 13.

[0016] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0017] Although terms such as pipeline 1, valve body 2, valve housing 3, spool element 4, spring 5, clamping section 6, reverse buckle 7, elastic groove 8, clamping groove 9, support ring 10, gasket 11, sealing ring 12, handwheel 13, anti-slip groove 14, etc. are used more frequently in this text, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A vacuum check valve for a recreational vehicle water supply system, comprising a valve body (2) having a pipeline (1), characterized in that: A check valve core assembly is clamped in the pipe (1) of the valve body (2), the check valve core assembly comprising a valve housing (3), a valve core element (4) arranged in the valve housing (3) and a spring (5), the check valve core assembly is integrally assembled, the valve housing (3) has a clamping section (6), and the clamping section (6) is formed with a plurality of undercuts (7) that are stretched outward and have an elastic effect, the clamping section (6) has elastic grooves (8) at positions corresponding to the undercuts (7), and a clamping groove (9) for the undercuts (7) to be clamped is provided on the inner wall of the pipe (1).

2. A vacuum check valve for a motorhome water supply system according to claim 1, characterized in that: A support ring (10) and a gasket (11) are arranged in sequence in the pipeline (1) and between the pipeline (1) and the check valve; a sealing ring (12) is arranged between the support ring (10) and the pipeline (1); the valve housing (3) abuts against the support ring (10), and the gasket (11) is located between the valve housing (3) and the support ring (10).

3. A vacuum check valve for a RV water supply system according to claim 1, characterized in that: The top of the valve body (2) is connected to a hand wheel (13), and a plurality of anti-slip grooves (14) are provided on the peripheral wall of the hand wheel (13).

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