Combined sealing structure of multi-way disc valve

Abstract

The utility model discloses a combined sealing structure of a multi-way disc valve. Relates to the technical field of multi-way disc valves. Comprising a valve body, a plurality of circulation holes are formed in the bottom of the valve body, the valve further comprises a U-shaped sealing gasket and a runner plate matching piece, protruding sealing grooves are formed in the positions, located at the bottoms of the circulation holes, of the valve body, the sealing grooves are used for containing the U-shaped sealing gasket, and the runner plate matching piece is used for being connected into a U-shaped opening of the U-shaped sealing gasket and protrudes out of the sealing grooves. Protrusions are arranged at the two ends of a U-shaped opening in the U-shaped sealing gasket respectively. The U-shaped sealing gasket comprises an inner ring and an outer ring which are concentrically arranged, the inner ring is located in the outer ring, a plurality of connecting bodies are arranged between the inner ring and the outer ring, and the connecting bodies are located between the adjacent circulating holes. According to the utility model, the problems of extrusion deformation and increased torque of the valve core caused by single axial sealing are avoided.

Description

Technical Field

[0001] This utility model relates to the field of multi-port valve technology, and specifically to a combined sealing structure for a multi-port valve. Background Technology

[0002] With the rapid development of the new energy vehicle industry and battery technology, the vehicle thermal management system, as the most critical part of vehicle temperature control, has faced significant challenges. In order to simultaneously control the flow direction and flow rate of the coolant circuit in the thermal management system, various multi-way valves are gradually being used in the thermal management systems of new energy vehicles.

[0003] Because multi-way valves are relatively large and have multiple modes and outlets, their sealing is of paramount importance. Most current multi-way water valves use a bottom groove combined with a sealing ring for sealing, such as the invention patent with publication number CN113154088A, which achieves axial sealing through a bottom groove and the installation of a sealing ring. While this sealing method is convenient and simple, the use of a single sealing method means that only the bottom of the valve body is subjected to pressure from the sealing ring, making it prone to deformation and increased valve core torque.

[0004] Some multi-way disc valves also use irregularly shaped sealing gaskets similar to X-shaped sealing rings for bottom sealing. Although this sealing method is reliable and will not cause valve body deformation, the complex shape of such sealing gaskets greatly increases the processing difficulty, manufacturing cost, and installation difficulty.

[0005] Some multi-port valves solve this problem by adding water valve mating parts, such as the invention patent with publication number CN116398655A. The water valve mating parts are combined with the water valve base plate to improve the overall strength and solve the problems of deformation and internal leakage. However, the addition of extra accessories makes the overall structure more complicated and installation and disassembly more troublesome. Utility Model Content

[0006] To address the above problems, this utility model provides a multi-way valve combination sealing structure that is simple in structure, easy to install, and improves sealing performance.

[0007] The technical solution of this utility model is as follows: a multi-port valve combined sealing structure, including a valve body, the bottom of which is provided with several flow holes, and also including a U-shaped sealing gasket and a flow channel plate mating component. A protruding sealing groove is provided on the valve body at the bottom of the flow holes, the sealing groove being used to place the U-shaped sealing gasket.

[0008] The flow channel plate fitting is used to connect inside the U-shaped opening of the U-shaped sealing gasket and protrudes from the sealing groove.

[0009] The U-shaped sealing gasket has protrusions at both ends of the U-shaped opening.

[0010] Several flow holes are arranged in a ring.

[0011] The U-shaped sealing gasket includes an inner ring and an outer ring arranged concentrically, with the inner ring located inside the outer ring. A plurality of connecting bodies are provided between the inner ring and the outer ring, and the connecting bodies are located between adjacent flow holes.

[0012] The opening of the sealing groove is chamfered.

[0013] The lower middle part of the valve body is provided with several extended platforms on the circumference.

[0014] The valve body is provided with an axial retaining ring on its circumference, and the axial retaining ring is located at the bottom of the extension platform.

[0015] It also includes an O-ring, which is fitted onto the valve body and located at the bottom of the axial retaining ring.

[0016] The axial retaining ring and valve body are integrally injection molded.

[0017] In operation, this invention provides a sealing groove at the bottom of the flow hole on the valve body. This sealing groove has two sealing side walls (inner and outer) and a third sealing wall at the bottom, which is used to place a U-shaped sealing gasket.

[0018] When the U-shaped sealing gasket is installed, the first radial seal is achieved by the compression deformation of the first sealing sidewall and the inner wall of the flow channel plate mating parts on both sides. The second radial seal is achieved by the compression deformation of the second sealing sidewall and the outer wall of the flow channel plate mating parts.

[0019] The third sealing wall axially limits the U-shaped gasket during valve body installation, preventing large axial displacement of the U-shaped gasket under the pressure during sealing. Simultaneously, the third sealing wall, the flow channel plate, and the U-shaped gasket work together to form the third axial seal in the multi-port valve.

[0020] The flow channel plate mating parts and the valve body sealing groove achieve a seal through a U-shaped sealing gasket. In this way, the bottom of the valve body is subjected to both axial and radial compressive forces simultaneously, avoiding the problems of extrusion deformation and increased valve core torque caused by a single axial seal. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In the drawings, the parts are not necessarily drawn to scale.

[0022] Figure 1 This is a structural schematic diagram of the present invention.

[0023] Figure 2 yes Figure 1Sectional view of plane AA.

[0024] Figure 3 yes Figure 2 A magnified view of a section at point I.

[0025] Figure 4 yes Figure 1 Sectional view of the middle BB surface.

[0026] Figure 5 This is a schematic diagram of the U-shaped sealing gasket.

[0027] Figure 6 yes Figure 5 Cross-sectional view of the MM plane.

[0028] Figure 7 This is a structural schematic diagram of the flow channel plate mating parts;

[0029] 1 is the valve body; 10 is the flow port;

[0030] 2 is the axial retaining ring;

[0031] 3 is the U-shaped sealing gasket; 30 is the protrusion; 31 is the inner ring; 32 is the outer ring; 33 is the connector;

[0032] 4 is an O-ring seal; 5 is a sealing groove; 6 is an extension platform; 7 is a flow channel plate mating part. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] This utility model is as follows Figure 1-7 As shown, a multi-port valve combined sealing structure includes a valve body 1, the bottom of which is provided with a plurality of flow holes 10, and also includes a U-shaped sealing gasket 3 and a flow channel plate mating part 7. A protruding sealing groove 5 is provided on the valve body 1 at the bottom of the flow holes, the sealing groove 5 being used to place the U-shaped sealing gasket 3.

[0037] The flow channel plate fitting 7 is used to connect to the U-shaped opening of the U-shaped sealing gasket 5 and protrudes from the sealing groove. The flow channel plate fitting is plate-shaped and fits into the U-shaped opening of the U-shaped sealing gasket.

[0038] In operation, this invention provides a sealing groove at the bottom of the flow hole on the valve body. This sealing groove has two sealing side walls (inner and outer) and a third sealing wall at the bottom, which is used to place a U-shaped sealing gasket.

[0039] When the U-shaped sealing gasket is installed, the first radial seal is achieved by the compression deformation of the first sealing sidewall and the inner wall of the flow channel plate mating parts on both sides. The second radial seal is achieved by the compression deformation of the second sealing sidewall and the outer wall of the flow channel plate mating parts.

[0040] The third sealing wall axially limits the U-shaped gasket during valve body installation, preventing large axial displacement of the U-shaped gasket under the pressure during sealing. Simultaneously, the third sealing wall, the flow channel plate, and the U-shaped gasket work together to form the third axial seal in the multi-port valve.

[0041] The flow channel plate mating parts and the valve body sealing groove achieve a seal through a U-shaped sealing gasket. In this way, the bottom of the valve body is simultaneously subjected to axial and radial compressive forces, avoiding the problems of compression deformation and increased valve core torque caused by a single axial seal. This invention achieves reliable sealing through the combination of its components.

[0042] The U-shaped sealing gasket 3 has protrusions 30 at both ends of the U-shaped opening, such as ball-head protrusions.

[0043] This effectively prevents internal and external leakage from the valve body.

[0044] Several flow holes are arranged in a ring.

[0045] The U-shaped sealing gasket includes an inner ring 31 and an outer ring 32 arranged concentrically. The inner ring is located inside the outer ring. A plurality of connecting bodies 33 are provided between the inner ring and the outer ring. The connecting bodies are located between adjacent flow holes.

[0046] In this way, the U-shaped sealing gasket can be easily machined as a single piece and placed in the sealing groove at the bottom of the annular flow hole for convenient installation. The flow channel plate mating parts are also machined as a single piece for easy installation.

[0047] The U-shaped sealing gasket in this invention is similar in shape to the multiple flow holes at the bottom of the valve body. Its design addresses the issue of large disc valve dimensions and numerous bottom openings by incorporating an integrated structure, while also avoiding the inconvenience of installing multiple individual sealing rings in multi-way disc valves. Furthermore, compared to sealing solutions using X-shaped sealing rings, the U-shaped sealing gasket has a simpler structure, is easier to manufacture, and ensures a good sealing effect while saving on production and installation costs.

[0048] The cross-section of the U-shaped sealing gasket has a U-shaped structure.

[0049] The opening of the sealing groove 5 is chamfered.

[0050] This prevents the sharp parts of the valve body from damaging the U-shaped gasket during installation.

[0051] The lower middle part of the valve body is provided with several extension platforms 6 on the circumference.

[0052] The valve body is provided with an axial retaining ring 2 on its circumference, and the axial retaining ring is located at the bottom of the extension platform.

[0053] The axial retaining ring contacts the bottom of the extension platform (i.e., the valve body mounting position) and provides axial support for the axial retaining ring during installation.

[0054] It also includes an O-ring seal 4, which is fitted onto the valve body and located at the bottom of the axial retaining ring 2.

[0055] The axial retaining ring contacts the O-ring. During installation, the O-ring is squeezed by the axial force of the axial retaining ring and the installation position, as well as the radial force of the outer wall of the valve body, to form an axial seal in the lower middle part of the multi-way valve, which can effectively prevent external leakage of the circulating medium.

[0056] This invention provides an axial seal through the combination of an axial retaining ring and an O-ring, resulting in a simple structure that is easy to assemble and disassemble. This avoids the problems associated with using water valve mating parts to provide an axial seal, which involves complex structures and difficult installation and disassembly.

[0057] The axial retaining ring 2 and the valve body 1 are integrally injection molded. In this way, while ensuring the structural strength of the axial retaining ring, the strength of the lower part of the valve body is also improved.

[0058] Regarding the information disclosed in this case, the following points need to be clarified:

[0059] (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design.

[0060] (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments;

[0061] The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. A multi-port valve combined seal structure comprising a valve body, the bottom of the valve body being provided with a plurality of flow-through holes, characterized in that, The valve body is provided with a protruding sealing groove at the bottom of the flow-through hole, the sealing groove is used for placing a U-shaped sealing gasket, The flow channel plate fitting is used for being connected in the U-shaped opening of the U-shaped sealing gasket and protruding the sealing groove.

2. A multi-port valve modular seal assembly according to claim 1, wherein, The two ends of the U-shaped opening of the U-shaped sealing gasket are respectively provided with protrusions.

3. A multi-port valve modular seal structure according to claim 1 or 2, wherein The flow-through holes are arranged in a ring shape, The U-shaped sealing gasket comprises an inner ring and an outer ring arranged concentrically, the inner ring is located in the outer ring, and a plurality of connecting bodies are arranged between the inner ring and the outer ring.

4. A multi-port valve modular seal assembly according to claim 3, wherein, The sealing groove is provided with a chamfer at the notch.

5. A multi-port valve modular seal assembly as defined in claim 1, wherein, The middle and lower parts of the valve body are provided with a plurality of outwardly extending platforms on the circumference, The valve body is provided with an axial blocking ring on the circumference, and the axial blocking ring is located at the bottom of the outwardly extending platform.

6. A multi-port valve modular seal assembly according to claim 5, wherein, An O-shaped sealing ring is further included, the O-shaped sealing ring is sleeved on the valve body and located at the bottom of the axial blocking ring.

7. A multi-port valve modular seal assembly according to claim 5, wherein, The axial blocking ring and the valve body are integrally injection molded.

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