CN214535010U - Novel valve module quick connector - Google Patents

Abstract

The utility model provides a novel quick connector of valve module, including casing, stop valve, first sealing washer, check valve, spring. A valve body chamber and a spring chamber which are communicated with each other are formed in the shell; the stop valve is arranged in the valve body cavity and is provided with an inlet and an outlet, and the inlet is communicated with the outlet to form a channel; the first sealing ring is arranged in the valve body cavity, and the first sealing ring is attached to the stop valve when the joint is not assembled; the check valve is arranged in the valve chamber and is provided with a check valve plate, and the check valve plate can be arranged on one side of the outlet in a sliding manner so as to open or shield the outlet; the spring is located in the spring cavity, and the one end of spring is fixed in the casing, and the other end and check valve or stop valve butt when the spring warp drive the stop valve when the spring resets and reset. The utility model discloses fuel leakage appears when can avoiding connecting the disconnection, carries out the pressure release simultaneously, and the space cost can be practiced thrift in the valve module design.

Description

Novel valve module quick connector

Technical Field

The utility model relates to a fuel pipe connects the field, especially relates to a novel valve module quick connector.

Background

In the prior art, after an engine completes a thermal test, one end of a fuel pipe is connected with a fuel guide rail, and the other end of the fuel pipe is in a disconnected state, so that the problem of fuel leakage easily occurs in a conventional joint. To avoid this problem, it is necessary to develop a joint with a shut-off function so as to avoid fuel leakage. After fuel supply is stopped, the fuel quickly flows back to the fuel tank to generate noise, and the joint may be damaged by reverse high pressure. However, if the problems of fuel leakage and high-pressure joint damage are solved simultaneously, two parts need to be connected in series respectively, so that the number of the parts is increased, leakage points and production cost are increased, and the whole size is increased and the layout is inconvenient. Therefore, the invention needs to provide a joint which can simultaneously solve the problems of fuel leakage and high-pressure damage to a valve body during fuel backflow without increasing parts.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a novel quick connector of valve module, with two valve body integrations of different functions to one connect inside, realize solving the problem that fuel leaked, fuel backward flow high pressure destroyed the valve body when reducing part quantity saving cost.

To achieve the above object, the present invention provides a novel valve assembly quick connector, which comprises

The valve comprises a shell, a valve body cavity and a spring cavity which are communicated with each other are formed in the shell;

the stop valve is arranged in the valve body cavity and is provided with an inlet and an outlet, and the inlet is communicated with the outlet to form a channel;

the first sealing ring is arranged in the valve body cavity and is attached to the stop valve when the joint is not assembled;

the check valve is arranged in the valve body cavity and provided with a check valve plate, and the check valve plate can be slidably arranged on one side of the outlet to open or shield the outlet; and

the spring, the spring is located in the spring cavity, the one end of spring is fixed in the casing, the other end when the spring warp with the check valve or stop valve butt, drive when the spring resets the stop valve resets.

As a preferred scheme of the utility model, the side of stop valve seted up intercommunication extremely the pressure release hole of passageway, the pressure release hole with the import distance is less than first sealing washer with the import distance.

As a preferred scheme of the utility model, the stop valve outer wall is equipped with the annular groove, the check valve piece has the cavity extension, the check valve still has the check valve support, the check valve support includes disk seat and chucking part, disk seat front side intermediate position have the cylinder protruding axle and with the cooperation of cavity extension, the chucking part have a plurality of jack catchs and circumference equipartition in the disk seat outer fringe, the end of jack catch is fixed in the annular groove, the check valve piece axial activity in the stop valve end with the disk seat front side, spring one end with disk seat rear side butt.

As a preferred scheme of the utility model, the export is the plane, spacing hole and conducting hole have been seted up on the plane, the cavity extension radially is fixed in spacing hole, one-way valve block can cover the conducting hole.

As an optimized scheme of the utility model, the import cover is equipped with the sealing ring.

As an optimized scheme of the utility model, be equipped with the second sealing washer in the valve body cavity, the second sealing washer is fixed in on the casing and is close to valve body cavity entrance, first sealing washer with install the spacer ring between the second sealing washer, first sealing washer material is fluororubber, second sealing washer material is fluorine silicone rubber.

As an optimized scheme of the utility model, first sealing washer with install the isolating ring between the check valve support.

As a preferred scheme of the utility model, the conducting hole have a plurality of and evenly distributed in spacing hole is all around.

As an optimized proposal of the utility model, the one-way valve block is an elastic piece.

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

(1) through the combined action that sets up check valve, stop valve, spring, first sealing washer, avoid after the thermal test, two connect the disconnection to lead to the fuel to leak.

(2) Through set up the pressure release hole on the stop valve, can carry out the earial drainage when the quick oil return case of fuel forms reverse highly compressed, the pressure release.

(3) The check valve and the stop valve are integrated into a quick connector, so that the space is saved, and the cost is reduced.

Drawings

Fig. 1 is a sectional view of the existing structure of a quick connector for a novel valve assembly provided by the present invention, the connector being in an unassembled state;

fig. 2 is a cross-sectional view of the existing structure of the quick connector for a novel valve assembly provided by the present invention, in an assembled state;

FIG. 3 is an external view of a quick connector for a novel valve assembly;

FIG. 4 is a perspective view of the shut off valve 1;

FIG. 5 is a perspective view of the shut off valve 2;

FIG. 6 is a front view of the shut-off valve;

FIG. 7 is a right side view of the shut off valve;

FIG. 8 is a perspective view of the check valve 1;

FIG. 9 is a perspective view of the check valve 2;

fig. 10 is a cross-sectional view of the check valve.

Description of the reference symbols

Casing 1 second sealing ring 2

Sealing ring 3 spacer ring 4

First seal ring 5 spacer ring 6

Cut-off valve 7 pressure relief hole 71

Via 73 of limiting hole 72

Inlet 74 and outlet 75

Annular groove 76 check valve 8

Middle opening 811 of one-way valve sheet 81

Hollow extension 812 retaining cap 8121

Check valve support 82 valve seat 821

Gripping portion 822 claw 8221

Hook 8221a spring 9

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. In the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

As shown in fig. 1 and fig. 3, the invention provides a novel valve assembly quick connector. As shown in figure 1, the quick connector of the novel valve assembly comprises a shell 1, wherein a valve body chamber and a spring chamber which are communicated with each other are formed in the shell 1. A stop valve 7, a sealing ring 3, a first sealing ring 5, a second sealing ring 2, a spacer ring 4, a spacer ring 6 and a one-way valve 8 are arranged in the valve body cavity.

As shown in fig. 4 and 5, the shutoff valve 7 has an inlet 74 and an outlet 75, and a passage is formed between the inlet 74 and the outlet 75. As shown in fig. 6, the side surface of the stop valve 7 is provided with a pressure relief hole 71 communicated to the channel, as shown in fig. 7, the outlet 75 is a plane, the middle position of the plane is provided with a limit hole 72, and the periphery of the limit hole 72 is uniformly distributed with via holes 73. As shown in fig. 5 and 6, the outer wall of the stop valve 7 is provided with an annular groove 76. As shown in fig. 1 and 2, the sealing ring 3 is sleeved at the inlet 74 of the stop valve 7, so that a buffering effect is achieved during the assembly process of the two joints, and the sealing performance is better when the two joints are in contact. And the opening size of the sealing ring 3 can be consistent with the size of the inlet 74 of the stop valve 7, so that the liquid can flow into the stop valve 7 more smoothly.

As shown in fig. 8 and 9, the check valve 8 may include a check valve plate 81 and a check valve bracket 82. The one-way valve plate 81 can cover the via hole 73, and the one-way valve plate 81 can be made of fluorosilicone rubber, so that the stop valve 7 can be better attached when deformed, and the best sealing effect is achieved. As shown in fig. 10, the check valve plate 81 is far away from the middle opening 811 of one side of the check valve bracket 82 and extends outward to form a hollow extension portion 812, the hollow extension portion 812 can form a fixing cap 8121 through an end portion, the fixing cap 8121 is installed and fixed in the limiting hole 72, or the hollow extension portion 812 can be fixed in the limiting hole 72 by sleeving an annular ring, so as to limit the radial movement of the check valve plate 81. Check valve support 82 includes valve seat 821 and chucking part 822, and valve seat 821 front side intermediate position has a cylindrical protruding axle to be used for cooperating with the hollow extension portion 812 of check valve piece 81, and chucking part 822 has three jack catch 8221 circumference equipartition in valve seat 821 outer fringe, as shown in fig. 1, the end of jack catch 8221 forms the pothook 8221a and is fixed in the annular recess 76 of stop valve 7, sets up check valve support 82 and can prevent when liquid pressure is too high, and check valve piece 81 drops. One-way valve plate 81 is axially movable between the end of stop valve 7 and the front side of valve seat 821.

As shown in fig. 1, the spring chamber houses a spring 9. One end of the spring 9 abuts against the housing 1, and the other end abuts against the rear side of the valve seat 821.

As shown in fig. 1, the first seal ring 5 and the second seal ring 2 are disposed in the valve chamber and fixed on the housing 1, the second seal ring 2 is made of fluorosilicone rubber, the first seal ring 5 is made of fluororubber, the fluororubber has better oil resistance and lower temperature resistance, and the two seal rings made of different materials can meet the requirements of actual working conditions on oil resistance and lower temperature resistance. An isolating ring 4 is arranged between the second sealing ring 2 and the first sealing ring 5 and used for isolating the sealing ring 2 from the sealing ring 5, so that the two sealing rings are not easy to shift. Install isolating ring 6 between first sealing washer 5 and the check valve support 82, avoid the contact of check valve support 82 and first sealing washer 5 to lead to first sealing washer 5 to shift. The distance between the pressure relief hole 71 and the inlet 74 of the stop valve 7 is smaller than the distance between the first sealing ring 5 and the inlet 74 of the stop valve 7. When the joint is not assembled, the relief hole 71 is located near the spacer ring 4.

When carrying out the assembly of male and female joint, as shown in fig. 2, this female joint (novel valve module quick connector) is inserted to the male joint, and the in-process is inserted, and male joint contact sealing ring 3 gets into the valve body cavity, then progressively forms sealedly with second sealing washer 2, first sealing washer 5, and stop valve 7, check valve 8 move forward simultaneously, and then through check valve support 82 compression spring 9. The male connector and the sealing ring 3 form a seal, liquid enters the stop valve 7 through the male connector and flows out through the conducting hole 73, the one-way valve plate 81 is pushed by the pressure of the liquid, the one-way valve plate 81 is opened, and the liquid flows into the spring chamber. The pressure relief opening 71 in the shut-off valve 7 now moves from the vicinity of the isolating ring 4 into the spring chamber.

Liquid stops flowing into the back, and entry pressure reduces or disappears, and check valve piece 81 and stop valve 7 in close contact with under negative pressure or the liquid pressure effect reach sealed purpose, realize reverse ending, and liquid can not flow out through conducting hole 73, and the gap inflow pressure release hole 71 between backward flow liquid accessible stop valve 7 and the casing 1, and then flows out through the male joint, plays the function of pressure release simultaneously.

After the male joint is pulled out, the spring 9 resets, the stop valve 7 is pushed back to the initial position, the one-way valve plate 81 keeps the closed state under the action of liquid pressure, meanwhile, the stop valve 7 and the first sealing ring 5 form a sealing surface, and liquid cannot flow out through the pressure relief hole 71, so that the stop function is realized.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but the invention can not be understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by adopting the equivalent substitution or equivalent transformation should fall within the protection scope of the present invention.

Claims (9)

1. A novel valve assembly quick connector, comprising:

the valve comprises a shell, a valve body cavity and a spring cavity which are communicated with each other are formed in the shell;

the stop valve is arranged in the valve body cavity and is provided with an inlet and an outlet, and the inlet is communicated with the outlet to form a channel;

the first sealing ring is arranged in the valve body cavity and is attached to the stop valve when the joint is not assembled;

the check valve is arranged in the valve body cavity and provided with a check valve plate, and the check valve plate can be slidably arranged on one side of the outlet to open or shield the outlet; and

the spring, the spring is located in the spring cavity, the one end of spring is fixed in the casing, the other end when the spring warp with the check valve or stop valve butt, drive when the spring resets the stop valve resets.

2. The quick connector of claim 1, wherein a pressure relief hole is formed in a side surface of the stop valve and is communicated with the channel, and a distance between the pressure relief hole and the inlet is smaller than a distance between the first sealing ring and the inlet.

3. The quick connector of a novel valve assembly as claimed in claim 2, wherein the outer wall of the stop valve is provided with an annular groove, the check valve piece has a hollow extension portion, the check valve further has a check valve holder, the check valve holder includes a valve seat and a clamping portion, a cylindrical protruding shaft is arranged at a middle position of the front side of the valve seat and is matched with the hollow extension portion, the clamping portion has a plurality of clamping jaws which are evenly distributed on the outer edge of the valve seat circumferentially, the tail ends of the clamping jaws are fixed in the annular groove, the check valve piece axially moves between the tail end of the stop valve and the front side of the valve seat, and one end of the spring is abutted against the rear side of the valve seat.

4. The quick connector of claim 3, wherein the outlet is a plane, the plane is provided with a limiting hole and a via hole, the hollow extending part is radially fixed to the limiting hole, and the one-way valve plate can cover the via hole.

5. A novel valve assembly quick connector as claimed in any one of claims 1 to 4 wherein said inlet sleeve is provided with a sealing ring.

6. The quick connector of a novel valve assembly as claimed in any one of claims 1 to 4, wherein a second sealing ring is disposed in the chamber of the valve body, the second sealing ring is fixed to the housing and close to the inlet of the chamber of the valve body, a spacer ring is disposed between the first sealing ring and the second sealing ring, the first sealing ring is made of fluororubber, and the second sealing ring is made of fluorosilicone rubber.

7. A novel valve assembly quick connector as claimed in either one of claims 3 or 4, wherein a spacer ring is mounted between said first sealing ring and said one-way valve bracket.

8. The quick connector of claim 4, wherein said plurality of through holes are uniformly distributed around said limiting hole.

9. A novel valve assembly quick connector as claimed in any one of claims 1 to 4, wherein said one-way valve is a resilient member.

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