Embedded disc valve structure

Abstract

According to the technical scheme, the embedded disc valve structure comprises a shell, a fixing piece, a matching piece and a valve element arranged in the shell, a sealing ring is arranged on the side, facing the shell, of the matching piece, and an inner leakage sealing gasket is arranged on the side, facing the valve element, of the matching piece; the inner leakage sealing gasket is located within the surrounding range of the sealing ring, and the fixing piece is used for fixedly connecting the shell and a matching piece. The disc valve has the advantages that the production cost is saved, the installation difficulty is reduced, the sealing effect of the disc valve is improved, and the leakage risk caused by insufficient welding of laser welding is effectively avoided.

Description

Technical Field

[0001] The present application relates to the field of valves, and in particular to an embedded disc valve structure. Background Art

[0002] The end caps and shells of existing disc-type electronic three-way or four-way water valves are mostly sealed by laser welding. However, laser welding may result in cold welds, which affects the air tightness and overall strength of the water valve. In addition, corresponding equipment and tooling need to be added when welding the end caps and shells, and the processing steps are complicated and the processing efficiency is low. The flatness of the sealing surface of the end cap is difficult to control, and additional parts are required for leakage sealing. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the present application provides an embedded disc valve structure.

[0004] This application provides an embedded disc valve structure, which adopts the following technical solutions:

[0005] An embedded disc valve structure includes a shell, a fixing part, a fitting and a valve core arranged in the shell. The fitting is provided with a sealing ring on the side facing the shell, and an internal leakage sealing gasket is provided on the side facing the valve core. The internal leakage sealing gasket is located within the enclosed range of the sealing ring. The fixing part is used to fix the shell and the fitting together.

[0006] By adopting the above technical solution, the sealing ring is used to seal the connection between the fitting and the shell to achieve external leakage sealing; the internal leakage sealing gasket is used to seal the connection between the fitting and the valve core to achieve internal leakage sealing; the fixing part is used to fix the shell and the fitting, and the sealing ring is squeezed when the shell and the fitting are fixed, thereby improving the sealing effect of the sealing ring on the shell and the fitting; when the shell and the fitting are fixed, the valve core is driven to squeeze the internal leakage sealing gasket, thereby improving the sealing effect of the internal leakage sealing gasket on the valve core and the fitting.

[0007] Preferably, a groove 1 for positioning the sealing ring is provided on the pair of accessories.

[0008] By adopting the above technical solution, groove one is used to install the sealing ring, thereby improving the stability of the sealing ring on the accessory.

[0009] Preferably, the internal leakage sealing gasket includes an embedded portion received on the fitting and a sealing portion provided at one end of the embedded portion facing the valve core, and a second groove for receiving the embedded portion is provided on a side of the fitting facing the valve core.

[0010] By adopting the above technical solution, the embedded part is inserted into the second groove to improve the stability of the sealing part on the fitting and improve the sealing stability of the sealing part.

[0011] Preferably, the cross-sectional width of the sealing portion along the axial direction of the valve core gradually increases away from the valve core.

[0012] By adopting the above technical solution, the cross-sectional width of the sealing portion along the axial direction of the valve core gradually increases away from the valve core, thereby improving the structural stability of the sealing portion.

[0013] Preferably, the outer side wall of the shell near one end of the fitting is provided with a plurality of fixing seats 1, the fitting is provided with a fixing seat 2 cooperating with the fixing seat 1, and the fixing piece passes through the fixing seat 1 and is fixedly connected to the fixing seat 2.

[0014] By adopting the above technical solution, the fixing seat 1 and the fixing seat 2 facilitate the fixing of the shell and the accessory by the fixing member, and are convenient for the installer to install or disassemble.

[0015] Preferably, a positioning portion is provided on the side of the fitting facing the valve core, and a matching portion is provided on the side of the shell facing the fitting, and the positioning portion cooperates with the matching portion to achieve matching positioning of the fitting and the shell.

[0016] By adopting the above technical solution, the positioning portion and the matching portion improve the installation stability between the accessory and the valve core.

[0017] Preferably, a positioning piece is provided on the side of the valve core facing the fitting, and a matching piece is provided on the side of the fitting facing the valve core. The positioning piece cooperates with the matching piece to achieve matching positioning of the fitting and the valve core.

[0018] By adopting the above technical solution,

[0019] Preferably, the matching accessories are flow channel plates.

[0020] Preferably, the inner leakage sealing gasket cooperates with the valve core to achieve sealing of the valve core.

[0021] Preferably, the sealing ring is squeezed between the shell and the fitting to achieve sealing between the shell and the fitting.

[0022] To sum up, the present application locks the housing and the fitting through the fixing parts, and the housing and the fitting squeeze the sealing ring to generate sealing pressure, thereby ensuring the sealing effect of the sealing ring; while the housing and the fitting are squeezed and locked, the valve core synchronously contacts and compresses the inner leakage sealing gasket to ensure the sealing effect of the inner leakage sealing gasket; the present application ensures the external leakage sealing performance through the sealing ring, and the inner leakage sealing gasket ensures the internal leakage sealing performance, reduces the cost of sealing components, and improves the air tightness of the disc valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an embedded disc valve structure of the present application;

[0024] Figure 2It is a cross-sectional view of an embedded disc valve structure of the present application;

[0025] Figure 3 yes Figure 2 A magnified view of middle A;

[0026] Figure 4 This is an exploded view of an embedded disc valve structure of the present application;

[0027] Figure 5 This is a schematic diagram of the installation structure of the sealing ring and the inner leakage sealing gasket of this application.

[0028] Explanation of the accompanying reference numerals: 1. Shell; 2. Accessory; 3. Valve core; 4. Sealing ring; 5. Internal leakage sealing gasket; 51. Embedded portion; 52. Sealing portion; 6. Groove 1; 7. Groove 2; 8. Fixing seat 1; 9. Fixing seat 2; 10. Fixing part; 11. Positioning part; 12. Matching part; 13. Positioning part; 14. Matching part. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0030] The embodiment of the present application discloses an embedded disc valve structure. Figure 1 and Figure 2 , comprising a housing 1, a fitting 2, and a valve core 3 installed in the housing 1. The fitting 2 is provided with a positioning portion 11 on the side facing the housing 1, and a mating portion 12 is provided on the side of the housing 1 facing the fitting 2. The mating portion 12 cooperates with the positioning portion 11 to achieve the mating and positioning of the fitting 2 and the housing 1. A plurality of fixing seats 8 are installed on the end of the housing 1 close to the fitting 2. The fitting 2 is provided with a fixing seat 2 9 that cooperates with the fixing seat 1 8. The plurality of fixing seats 8 are evenly distributed around the outer periphery of the housing 1. The fixing seats 8 are provided with through holes for fixing members 10 to pass through. The fixing members 10 pass through the fixing seats 8 and the fixing seats 2 9 for fixed connection. The fixing members 10 in this application are preferably screws.

[0031] Reference Figure 2 and Figure 3 A positioning member 13 is installed on the side of the valve core 3 facing the counter fitting 2. A mating member 14 is also installed on the side of the counter fitting 2 facing the valve core 3, cooperating with the positioning member 13. The positioning member 13 and the mating member 14 cooperate to achieve positioning between the counter fitting 2 and the valve core 3. In this application, the positioning member 13 is integrally formed with the valve core 3, and the counter fitting 2 is integrally formed with the mating member 14. The mating member 14 has a slot for inserting the positioning member 13, improving the stability of the valve core 3 during rotation. The counter fitting 2 is a flow channel plate.

[0032] Reference Figure 2 and Figure 3To improve the seal at the connection between housing 1 and fitting 2, a sealing ring 4 is provided between fitting 2 and housing 1. This ring can be positioned by a groove 6 provided on fitting 2, or by a groove provided on housing 1. When fastener 10 secures housing 1 and fitting 2, housing 1 squeezes sealing ring 4, causing it to deform and fit more tightly against housing 1 and fitting 2, improving the seal between the two.

[0033] Reference Figure 2 and Figure 4 An internal leakage sealing gasket 5 is provided on the side of the counter fitting 2 facing the valve core 3. This gasket 5 seals the connection between the valve core 3 and the counter fitting 2, achieving a dynamic or static seal on the valve core 3 and sealing the channel when the disc valve switches between flow channels. The internal leakage sealing gasket 5 is located within the enclosed area of ​​the sealing ring 4 to ensure the internal leakage sealing effect of the disc valve. A second groove 7 is provided on the counter fitting 2 for positioning the internal leakage sealing gasket 5, which improves the stability of the internal leakage sealing gasket 5 on the counter fitting 2.

[0034] Reference Figure 3 and Figure 5 The internal leakage sealing gasket 5 includes an embedded portion 51 positioned within the second groove 7 and a sealing portion 52 disposed on the end of the embedded portion 51 facing the valve core 3. The cross-sectional width of the sealing portion 52 along the axial direction of the valve core 3 gradually increases as it moves away from the valve core 3. The width of the sealing portion 52 on the side facing the second groove 7 is greater than the width of the second groove 7. When the fixing member 10 secures the housing 1 and the mating fitting 2, the valve core 3 is driven by the housing 1 to squeeze the internal leakage sealing gasket 5. The internal leakage sealing gasket 5 is tightly attached to the valve core 3 and the mating fitting 2, improving the sealing between the two.

[0035] The implementation principle of an embedded disc valve structure in an embodiment of the present application is as follows: the sealing ring 4 is placed into the groove 1 6, the inner leakage sealing ring 4 is placed into the groove 2 7, the housing 1 and the fitting 2 are positioned by the positioning portion 11, the fixing seat 1 8 and the fixing seat 2 9 are aligned, and the fixing member 10 is used to lock. When the fixing member 10 locks the housing 1 and the fitting 2, the housing 1 squeezes the sealing ring 4 to generate sealing pressure to ensure external leakage performance. Under the action of the locking force of the housing 1, the valve core 3 compresses the inner leakage sealing gasket 5 to ensure the inner leakage performance of the disc valve. The present application directly fixes the housing 1 and the fitting 2 by providing the sealing ring 4 and the inner leakage sealing gasket 5. Compared with the prior art, the number of existing parts is effectively reduced, and the process flow such as welding is reduced, thereby saving production costs, reducing the difficulty of installation, improving the sealing effect of the disc valve, and effectively avoiding the risk of external leakage caused by laser welding.

[0036] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An embedded disc valve structure, comprising a housing (1), a fixing member (10), a fitting (2), and a valve core (3) disposed in the housing (1), characterized in that: A sealing ring (4) is provided on the side of the fitting (2) facing the housing (1), and an inner leakage sealing gasket (5) is provided on the side of the fitting (2) facing the valve core (3). The inner leakage sealing gasket (5) is located within the enclosed range of the sealing ring (4). The fixing member (10) is used to securely connect the housing (1) and the fitting (2).

2. The embedded disc valve structure according to claim 1, characterized in that: The pair of fittings (2) is provided with a groove (6) for positioning the sealing ring (4).

3. The embedded disc valve structure according to claim 1, characterized in that: The inner leakage sealing gasket (5) comprises an embedded portion (51) received on the fitting (2) and a sealing portion (52) provided at one end of the embedded portion (51) facing the valve core (3); a second groove (7) for receiving the embedded portion (51) is provided on a side of the fitting (2) facing the valve core (3).

4. The embedded disc valve structure according to claim 3, characterized in that: The cross-sectional width of the sealing portion (52) along the axial direction of the valve core (3) gradually increases away from the valve core (3).

5. The embedded disc valve structure according to claim 1, characterized in that: The outer wall of the shell (1) close to one end of the fitting (2) is provided with a plurality of fixing seats (8), the fitting (2) is provided with a fixing seat (9) that cooperates with the fixing seat (8), and the fixing member (10) passes through the fixing seat (8) and is fixedly connected to the fixing seat (9).

6. The embedded disc valve structure according to claim 1, characterized in that: The side of the fitting (2) facing the valve core (3) is provided with a positioning portion (11), and the side of the housing (1) facing the fitting (2) is provided with a matching portion (12). The positioning portion (11) cooperates with the matching portion (12) to achieve matching positioning of the fitting (2) and the housing (1).

7. The embedded disc valve structure according to claim 6, characterized in that: The valve core (3) is provided with a positioning piece (13) on the side facing the fitting (2), and the fitting (2) is provided with a matching piece (14) on the side facing the valve core (3). The positioning piece (13) cooperates with the matching piece (14) to achieve matching positioning of the fitting (2) and the valve core (3).

8. The embedded disc valve structure according to claim 1, characterized in that: The pair of accessories (2) is a flow channel plate.

9. The embedded disc valve structure according to claim 1, characterized in that: The inner leakage sealing gasket (5) cooperates with the valve core (3) to achieve sealing of the valve core (3).

10. The embedded disc valve structure according to claim 1, characterized in that: The sealing ring (4) is squeezed and positioned between the housing (1) and the fitting (2), thereby achieving sealing between the housing (1) and the fitting (2).

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