Sealing assembly for two-way valve, two-way valve and vehicle

Abstract

The utility model discloses a sealing assembly used for a two-way valve, the two-way valve and a vehicle, the sealing assembly comprises a main body, a sealing ring and a sealing ring, the main body is suitable for being arranged on the peripheral side of a valve element of the two-way valve in a sleeving mode; the sealing structure comprises a main body, a first sealing element and a second sealing element, the first sealing element and the second sealing element are arranged on the main body and are arranged in the axial direction of the main body, and grooves are formed in the side faces, away from each other, of the first sealing element and the second sealing element respectively. According to the sealing assembly for the two-way valve, the sealing assembly can be used under the high-pressure working condition, auxiliary guiding can be achieved, two-way sealing is achieved, and the sealing effect of the sealing assembly on the valve element is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a sealing assembly for a two-way valve, a two-way valve and a vehicle. Background Art

[0002] A two-way electronic expansion valve is a valve that can control the refrigerant flow in both directions. It adopts electronic control and can automatically adjust the flow according to the system requirements, so as to achieve high-precision control. Compared with the traditional comb-type or spiral expansion valve, the two-way electronic expansion valve not only improves the control precision, but also can reduce the system energy consumption and refrigerant leakage.

[0003] However, during the use of the two-way electronic expansion valve, it is not applicable to high-pressure working conditions and has poor overall sealing performance. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a sealing assembly for a two-way valve, which can be used in high-pressure working conditions, can assist in guiding, and has two-way sealing, thereby improving the sealing effect of the sealing assembly on the valve core.

[0005] Another object of the utility model is to provide a two-way valve adopting the above sealing assembly.

[0006] Still another object of the utility model is to provide a vehicle adopting the above two-way valve.

[0007] The sealing assembly for a two-way valve according to the first aspect embodiment of the utility model includes: a main body, the main body being adapted to be sleeved on the outer peripheral side of the valve core of the two-way valve; a first sealing member and a second sealing member, the first sealing member and the second sealing member being arranged on the main body, the first sealing member and the second sealing member being arranged along the axial direction of the main body, and grooves being respectively formed on the mutually remote side surfaces of the first sealing member and the second sealing member.

[0008] According to the sealing assembly of the utility model, during the use of the two-way valve, the sealing assembly can achieve sealing under high-pressure working conditions and has two-way sealing, thereby improving the sealing performance of the sealing assembly and being beneficial to the long-term normal use of the two-way valve. In addition, the first sealing member and the second sealing member play a role in guiding the movement of the valve core, thereby improving the stability of the valve core movement. Moreover, when the valve core is in a moving state or a static state, the sealing assembly can play a good sealing and guiding role, thereby improving the use performance of the sealing assembly.

[0009] According to some embodiments of the utility model, along the direction from the bottom wall of the groove towards the side surface, the width of the groove gradually increases.

[0010] According to some embodiments of the present utility model, the groove has a first inner wall and a second inner wall. One end of the first inner wall is connected to one end of the second inner wall, and the other end of the first inner wall and the other end of the second inner wall extend obliquely in a direction away from each other.

[0011] According to some embodiments of the present utility model, the first seal and the second seal respectively have a first wall surface and a second wall surface. The first wall surface and the second wall surface are located on both sides in the width direction of the groove, and extend obliquely away from each other in the direction from the bottom wall of the groove towards the side surface; or, in the direction from the bottom wall of the groove towards the side surface, at least one of the first wall surface and the second wall surface extends vertically along the axial direction of the main body.

[0012] According to some embodiments of the present utility model, the ratio of the depth of the groove of the first seal to the length of the first seal along the axial direction of the main body is a, where a satisfies: 40% ≤ a ≤ 60%; the ratio of the depth of the groove of the second seal to the length of the second seal along the axial direction of the main body is b, where b satisfies: 40% ≤ b ≤ 60%.

[0013] According to some embodiments of the present utility model, a plurality of mounting grooves are formed on the main body, and the first seal and the second seal are respectively arranged in the plurality of mounting grooves, and a fluid space is defined between the groove and the inner wall of the corresponding mounting groove.

[0014] According to some embodiments of the present utility model, at least a part of the inner wall of the mounting groove extends obliquely away from the groove in the direction radially inwards of the main body.

[0015] According to some embodiments of the present utility model, the shape of the inner peripheral surface of the main body is adapted to match the shape of the outer peripheral surface of the valve core.

[0016] According to some embodiments of the present utility model, the first seal and the second seal are respectively Gleason rings.

[0017] According to some embodiments of the present utility model, the first seal and the second seal are respectively elastic members.

[0018] The two-way valve according to the second aspect embodiment of the present utility model includes: a valve core; a sealing assembly, the sealing assembly is a sealing assembly for a two-way valve according to the above first aspect embodiment of the present utility model, the sealing assembly is located on the outer peripheral side of the valve core, and the first seal and the second seal of the sealing assembly are respectively in interference fit with the valve core.

[0019] A vehicle according to an embodiment of the third aspect of the present utility model includes a two-way valve according to the embodiment of the second aspect of the present utility model as described above.

[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a schematic diagram of a sealing assembly according to an embodiment of the present utility model;

[0023] Figure 2 is a side view of the sealing assembly according to an embodiment of the present utility model;

[0024] Figure 3 is a sectional view of the sealing assembly according to an embodiment of the present utility model;

[0025] Figure 4 is a schematic diagram of the main body of the sealing assembly according to an embodiment of the present utility model;

[0026] Figure 5 is a side view of the main body of the sealing assembly according to an embodiment of the present utility model;

[0027] Figure 6 is a sectional view of the main body of the sealing assembly according to an embodiment of the present utility model;

[0028] Figure 7 is a schematic diagram of the first seal of the sealing assembly according to an embodiment of the present utility model;

[0029] Figure 8 is a side view of the first seal of the sealing assembly according to an embodiment of the present utility model;

[0030] Figure 9 is a sectional view of the first seal of the sealing assembly according to an embodiment of the present utility model;

[0031] Figure 10 is a schematic diagram of the two-way valve according to an embodiment of the present utility model;

[0032] Figure 11 is a sectional view of the two-way valve according to an embodiment of the present utility model;

[0033] Figure 12 is a sectional view of the two-way valve from another angle according to an embodiment of the present utility model, wherein the high-pressure area is located on the upper side;

[0034] Figure 13 is Figure 12 an enlarged view of part C shown by the circle in the figure;

[0035] Figure 14 is a sectional view of the two-way valve according to an embodiment of the present invention from another angle, wherein the high-pressure area is located at the lower side;

[0036] Figure 15 is a schematic diagram of the valve core of the two-way valve according to an embodiment of the present invention;

[0037] Figure 16 is a side view of the valve core of the two-way valve according to an embodiment of the present invention;

[0038] Figure 17 is a sectional view of the valve core of the two-way valve according to an embodiment of the present invention.

[0039] Reference numerals:

[0040] 100, sealing assembly;

[0041] 1, main body; 11, installation groove; 12, fluid space;

[0042] 2, first seal; 21, first wall surface; 22, second wall surface;

[0043] 3, second seal;

[0044] 4, groove; 41, first inner wall; 42, second inner wall; 43, opening;

[0045] 200, two-way valve;

[0046] 201, valve core; 202, sealing rubber part. Detailed description of the specific implementation mode

[0047] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the drawings are exemplary. Below, reference is made to Figures 1 - 9 Describe the sealing assembly 100 for the two-way valve 200 according to the first aspect embodiment of the present invention. The sealing assembly 100 in this application can be used in the two-way valve 200. In the following description, the sealing assembly 100 is used in the two-way valve 200 as an example for detailed description.

[0048] As Figure 3 shown, the sealing assembly 100 for the two-way valve 200 according to the first aspect embodiment of the present invention includes a main body 1, a first seal 2 and a second seal 3.

[0049] Specifically, the body 1 is adapted to be sleeved on the outer peripheral side of the valve core 201 of the two-way valve 200. The first seal 2 and the second seal 3 are provided on the body 1. The first seal 2 and the second seal 3 are arranged along the axial direction of the body 1. Grooves 4 are respectively formed on the sides of the first seal 2 and the second seal 3 that are away from each other.

[0050] For example, in Figure 3 , Figure 10 and Figure 11 examples, the first seal 2 and the second seal 3 are respectively sleeved on the outer peripheral side of the valve core 201. The first seal 2 and the second seal 3 are arranged at intervals in the up-down direction (i.e., the axial direction of the valve core 201). The first seal 2 and the second seal 3 are substantially annular. The groove 4 of the first seal 2 is formed on the upper side surface of the first seal 2. The groove 4 of the second seal 3 is formed on the lower side surface of the second seal 3. The first seal 2 and the second seal 3 are arranged back to back.

[0051] When the fluid (such as air flow) in the two-way valve 200 flows in the direction from top to bottom, that is, the air flow flows from the high-pressure area to the low-pressure area, the air flow flows from between the body 1 and the valve core 201 to the groove 4 of the first seal 2 (such as Figure 12 the path indicated by arrow A in), under the action of the high-pressure air flow, the two inner walls of the groove 4 are squeezed to both sides, the groove 4 expands outwards, the outer peripheral wall of the first seal 2 deforms, and the inner side surface of the outer peripheral wall of the first seal 2 fits more closely to the outer peripheral surface of the valve core 201, that is, the inner side surface of the outer peripheral wall of the first seal 2 is in interference fit with the outer peripheral surface of the valve core 201.

[0052] When the fluid in the two-way valve 200 flows in the direction from bottom to top, that is, the air flow flows from the high-pressure area to the low-pressure area, the air flow flows from between the body 1 and the valve core 201 to the groove 4 of the second seal 3 (such as Figure 14 the path indicated by arrow B in), under the action of the high-pressure air flow, the two walls of the groove 4 are squeezed to both sides, the groove 4 expands outwards, the outer peripheral wall of the second seal 3 deforms, and the inner side surface of the outer peripheral wall of the second seal 3 fits more closely to the outer peripheral surface of the valve core 201, that is, the inner side surface of the outer peripheral wall of the second seal 3 is in interference fit with the outer peripheral surface of the valve core 201.

[0053] With such a setting, during the use of the two-way valve 200, the sealing assembly 100 can act under high-pressure conditions and adopts an internal cavity air flow-guided two-way sliding seal. The air flow passes through the sealing assembly 100 from different directions. That is, when the high-pressure area is located on the upper side or the lower side of the sealing assembly 100, the first seal 2 or the second seal 3 is respectively in close contact with the outer peripheral surface of the valve core 201, realizing two-way sealing. Thus, when the air flow flows from different directions, sealing can be achieved, improving the sealing performance of the sealing assembly 100 and facilitating the long-term normal use of the two-way valve 200. In addition, the valve core 201 moves up and down in the sealing assembly 100, and the first seal 2 and the second seal 3 are in contact with the outer peripheral surface of the valve core 201, playing a role in guiding the movement of the valve core 201 and improving the stability of the movement of the valve core 201. Moreover, when the valve core 201 is in a moving state or a static state, the sealing assembly 100 can play a good sealing and guiding role, thus improving the service performance of the sealing assembly 100. Additionally, the structures of the first seal 2 and the second seal 3 are simple and easy to process, thereby improving the production efficiency of the sealing assembly 100.

[0054] According to the sealing assembly 100 of the present invention, during the use of the two-way valve 200, the sealing assembly 100 can achieve sealing under high-pressure conditions and has two-way sealing, thereby improving the sealing performance of the sealing assembly 100 and facilitating the long-term normal use of the two-way valve 200. In addition, the first seal 2 and the second seal 3 play a role in guiding the movement of the valve core 201, thereby improving the stability of the movement of the valve core 201. Moreover, when the valve core 201 is in a moving state or a static state, the sealing assembly 100 can play a good sealing and guiding role, thus improving the service performance of the sealing assembly 100.

[0055] According to some embodiments of the present invention, with reference to Figure 9 、 Figure 12 and Figure 13 , along the direction from the bottom wall of the groove 4 towards the above-mentioned side surface, the width of the groove 4 gradually increases. It should be noted that in the following description, the groove 4 of the first seal 2 is taken as an example for detailed description.

[0056] For example, in Figure 7 、 Figure 8 and Figure 9In the example, along the direction away from the bottom wall of the groove 4 (i.e., the upward direction from bottom to top), the width of the groove 4 gradually increases. That is, along the upward direction from bottom to top, the distance between the side wall of the groove 4 and the outer peripheral surface of the corresponding first seal 2 gradually decreases (such as the distance between the side wall of the groove 4 close to the valve core 201 and the inner side surface of the first seal 2, or the distance between the side wall of the groove 4 far from the valve core 201 and the outer side surface of the first seal 2). The opening 43 is formed on the side of the groove 4 away from the bottom wall of the groove 4. With such a setting, after the air flow enters the groove 4, the side wall at the opening 43 of the groove 4 is prone to deformation, effectively ensuring that under the impact of the air flow, the opening 43 of the groove 4 expands outward, and the upper end of the inner side surface of the first seal 2 is in interference fit with the outer peripheral surface of the valve core 201, or the lower end of the inner side surface of the second seal 3 is in interference fit with the outer peripheral surface of the valve core 201, thereby further improving the sealing performance of the sealing assembly 100 to the valve core 201.

[0057] According to some embodiments of the present invention, referring to Figure 12 and Figure 13 , the groove 4 has a first inner wall 41 and a second inner wall 42. One end of the first inner wall 41 is connected to one end of the second inner wall 42, and the other end of the first inner wall 41 and the other end of the second inner wall 42 extend obliquely in a direction away from each other.

[0058] For example, in the examples of Figure 9 , Figure 12 and Figure 13 , the side wall of the groove 4 close to the valve core 201 is the first inner wall 41, and the side wall of the groove 4 far from the valve core 201 is the second inner wall 42. One end of the first inner wall 41 and one end of the second inner wall 42 are connected at the bottom wall of the groove 4, and the other end of the first inner wall 41 and the other end of the second inner wall 42 are away from each other at the opening 43 of the groove 4. The cross-sectional shape of the groove 4 is generally in a "V" shape.

[0059] With such a setting, along the upward direction from bottom to top, the thickness of the upper end of the first seal 2 in the radial direction of the first seal 2 gradually decreases. After the air flow enters the groove 4, both the first inner wall 41 and the second inner wall 42 are prone to deformation and move in a direction away from each other, making the inner side surface of the first seal 2 in interference fit with the outer peripheral surface of the valve core 201, and the outer side surface of the first seal 2 in interference fit with the main body 1, improving the sealing performance of the first seal 2 and the valve core 201 in cooperation, and also improving the sealing performance and stability of the cooperation between the first seal 2 and the main body 1, thereby improving the use sealing performance and stability of the sealing assembly 100, which is beneficial to the long-term normal use of the two-way valve 200.

[0060] According to some embodiments of the present invention, referring to Figure 12 and Figure 13, the first seal 2 and the second seal 3 respectively have a first wall surface 21 and a second wall surface 22. The first wall surface 21 and the second wall surface 22 are located on both sides of the width direction of the groove 4, and extend obliquely away from each other in the direction from the bottom wall of the groove 4 towards the above-mentioned side surface.

[0061] For example, in Figure 9 , Figure 12 and Figure 13 's example, the inner side surface of the first seal 2 is the first wall surface 21, and the outer side surface of the first seal 2 is the second wall surface 22. The inner side surface of the second seal 3 is the first wall surface 21, and the outer side surface of the second seal 3 is the second wall surface 22. Taking the first seal 2 as an example for detailed description. Along the direction from bottom to top, the first wall surface 21 and the second wall surface 22 extend obliquely away from each other, and the cross-sectional shape of the outer peripheral surface of the first seal 2 is approximately "V"-shaped. With such a setting, after the upper end of the first seal 2 is squeezed by the air flow at the groove 4, the upper end of the first wall surface 21 contacts the outer peripheral side of the valve core 201, reducing the contact area between the first wall surface 21 and the valve core 201, thereby reducing the friction between the valve core 201 and the first wall surface 21 during the movement of the valve core 201, reducing the resistance received by the valve core 201, thus facilitating the movement of the valve core 201 and improving the flexibility of use of the two-way valve 200.

[0062] According to other embodiments of the present invention, the first seal 2 and the second seal 3 respectively have a first wall surface 21 and a second wall surface 22. The first wall surface 21 and the second wall surface 22 are located on both sides of the width direction of the groove 4, and at least one of the first wall surface 21 and the second wall surface 22 extends vertically along the axial direction of the main body 1 in the direction from the bottom wall of the groove 4 towards the above-mentioned side surface.

[0063] For example, the settings of the first wall surface 21 and the second wall surface 22 include the following situations: First, along the direction from the bottom wall of the groove 4 towards the above-mentioned side surface, the first wall surface 21 extends vertically along the axial direction of the main body 1. Second, along the direction from the bottom wall of the groove 4 towards the above-mentioned side surface, the second wall surface 22 extends vertically along the axial direction of the main body 1. Third, along the direction from the bottom wall of the groove 4 towards the above-mentioned side surface, the first wall surface 21 and the second wall surface 22 respectively extend vertically along the axial direction of the main body 1. With such a setting, the contact area between the second wall surface 22 and the main body 1 is also increased, thereby further improving the sealing performance of the sealing assembly 100. In addition, the structures of the first seal 2 and the second seal 3 are simple and easy to process, thereby improving the production efficiency of the first seal 2 and the second seal 3 and the production efficiency of the sealing assembly 100.

[0064] According to some embodiments of the present utility model, the ratio of the depth of the groove 4 of the first seal 2 to the length of the first seal 2 along the axial direction of the main body 1 is a, where a satisfies: 40% ≤ a ≤ 60%; and / or, the ratio of the depth of the groove 4 of the second seal 3 to the length of the second seal 3 along the axial direction of the main body 1 is b, where b satisfies: 40% ≤ b ≤ 60%.

[0065] For example, the arrangements of the first seal 2 and the second seal 3 include the following cases: First, the ratio of the depth of the groove 4 of the first seal 2 to the length of the first seal 2 along the axial direction of the main body 1 is a, where a satisfies: 40% ≤ a ≤ 60%. Second, the ratio of the depth of the groove 4 of the second seal 3 to the length of the second seal 3 along the axial direction of the main body 1 is b, where b satisfies: 40% ≤ b ≤ 60%. Third, the ratio of the depth of the groove 4 of the first seal 2 to the length of the first seal 2 along the axial direction of the main body 1 is a, and the ratio of the depth of the groove 4 of the second seal 3 to the length of the second seal 3 along the axial direction of the main body 1 is b, where a and b respectively satisfy: 40% ≤ a ≤ 60%, 40% ≤ b ≤ 60%.

[0066] For example, when the ratio a of the depth of the groove 4 of the first seal 2 to the length of the first seal 2 along the axial direction of the main body 1 is less than 40%, the depth of the groove 4 is small, the structural strength of the side wall of the groove 4 is large, and it is not easy to deform, reducing the fitting tightness between the upper end of the first seal 2 and the valve core 201, thereby reducing the sealing effect. When the ratio a of the depth of the groove 4 of the first seal 2 to the length of the first seal 2 along the axial direction of the main body 1 is less than 60%, the depth of the groove 4 is large, the structural strength of the side wall of the groove 4 is small, so that the first seal 2 is easily damaged, shortening the service life of the first seal 2.

[0067] When the ratio a of the depth of the groove 4 of the second seal 3 to the length of the second seal 3 along the axial direction of the main body 1 is less than 40%, the depth of the groove 4 is small, the structural strength of the side wall of the groove 4 is large, and it is not easy to deform, reducing the fitting tightness between the upper end of the second seal 3 and the valve core 201, thereby reducing the sealing effect. When the ratio a of the depth of the groove 4 of the second seal 3 to the length of the second seal 3 along the axial direction of the main body 1 is less than 60%, the depth of the groove 4 is large, the structural strength of the side wall of the groove 4 is small, so that the second seal 3 is easily damaged, shortening the service life of the second seal 3.

[0068] Thus, by setting the ratio of the depth of the groove 4 of the first seal 2 to the length of the first seal 2 along the axial direction of the main body 1 as a, and the ratio of the depth of the groove 4 of the second seal 3 to the length of the second seal 3 along the axial direction of the main body 1 as b, where a and b respectively satisfy: 40% ≤ a ≤ 60%, 40% ≤ b ≤ 60%, the depth of the groove 4 is reasonably set, and the structural strength of the side wall of the groove 4 is reasonably set, that is, it is easy to deform, improving the fitting tightness of the first seal 2 and the second seal 3 with the valve core 201 respectively, thereby improving the sealing effect. It also makes the first seal 2 and the second seal 3 not easily damaged, thereby extending the service life of the first seal 2 and the second seal 3, and extending the service life of the sealing assembly 100.

[0069] According to some embodiments of the present invention, with reference to Figure 4 , Figure 5 and Figure 6 , a plurality of mounting grooves 11 are formed on the main body 1, the first seal 2 and the second seal 3 are respectively arranged in the plurality of mounting grooves 11, and a fluid space 12 is defined between the groove 4 and the inner wall of the corresponding mounting groove 11. In the description of the present invention, the meaning of "a plurality of" is two or more. For example, in the examples of Figures 1 - 3 and Figure 13 , there are two mounting grooves 11, and the first seal 2 and the second seal 3 are respectively arranged in the two mounting grooves 11. The fluid space 12 is formed between the groove 4 of the first seal 2 and the upper inner wall of the mounting groove 11.

[0070] With such a setting, the plurality of mounting grooves 11 respectively limit and constrain the first seal 2 and the second seal 3, avoiding the first seal 2 and the second seal 3 moving together with the valve core 201 during the movement of the valve core 201, thereby improving the use stability of the first seal 2 and the second seal 3. In addition, the definition of the fluid space 12 effectively ensures that the air flow can enter the groove 4, thereby effectively ensuring the sealing effect of the first seal 2 and the second seal 3 on the valve core 201, enabling the two-way valve 200 to be used normally for a long time.

[0071] Furthermore, with reference to Figure 13 , at least a part of the inner wall of the mounting groove 11 extends obliquely away from the groove 4 in the direction radially inward of the main body 1. For example, at least a part of the side wall of the mounting groove 11 opposite to the groove 4 extends obliquely close to the valve core 201. With such a setting, during the assembly process of the first seal 2 and the second seal 3 with the main body 1, it is easy to assemble, improving the assembly efficiency of the sealing assembly 100. In addition, after the main body 1 is formed in the mold, it is easy for the main body 1 to be separated from the mold, improving the separation efficiency of the main body 1 from the mold.

[0072] According to some embodiments of the present invention, with reference toFigure 11 , the inner peripheral surface shape of the main body 1 is adapted to match the outer peripheral surface shape of the valve core 201. For example, in Figure 11 and Figures 15 - 17 , the outer peripheral surfaces of the upper part and the middle part of the valve core 201 are cylindrical with equal diameters. With such a setting, the main body 1 and the valve core 201 cooperate to form an auxiliary movement guide, further ensuring that the valve core 201 moves along the axis of the main body 1, so as to facilitate the stable reciprocating movement of the valve core 201 in the up and down directions, enabling the two-way valve 200 to be used for a long time.

[0073] According to some embodiments of the present invention, the first seal 2 and the second seal 3 are respectively Gleitrings. Thus, Gleitrings have the properties of low friction, no creep, small starting force, and high pressure resistance. Therefore, during the movement of the valve core 201, the first seal 2 and the second seal 3 can not only play a sealing role, but also play a role of sliding self-lubrication, reducing the friction force received by the valve core 201 and improving the smoothness of the movement of the valve core 201. Moreover, the wear degree of the first seal 2 and the second seal 3 is also reduced, and the service life of the first seal 2 and the second seal 3 is extended.

[0074] According to some embodiments of the present invention, the first seal 2 and the second seal 3 are respectively elastic members. Thus, the first seal 2 and the second seal 3 are prone to deformation during use. Within a certain range, the greater the pressure, the greater the deformation amount of the first seal 2 and the second seal 3, and the better the sealing performance, thereby ensuring good compatibility under various air pressure conditions. In addition, an internal cavity air flow guiding type two-way sliding seal is adopted. When the air flow medium seals, it presses on the groove 4, and the opening 43 of the groove 4 is more likely to expand, with good air flow guiding and easy sealing.

[0075] The two-way valve 200 according to the second aspect embodiment of the present invention, referring to Figure 10 and Figure 11 , includes a valve core 201 and a seal assembly 100. The seal assembly 100 is the seal assembly 100 for the two-way valve 200 according to the above first aspect embodiment of the present invention. The seal assembly 100 is located on the outer peripheral side of the valve core 201, and the first seal 2 and the second seal 3 of the seal assembly 100 are respectively in interference fit with the valve core 201.

[0076] According to the two-way valve 200 of the present utility model, the two-way valve 200 is mainly used for the stiffness regulating valve of the air spring to play the role of connecting and cutting off the air medium, and the valve core 201 moves up and down along the axis of the sealing assembly 100. By adopting the above-mentioned sealing assembly 100, movement guiding, sliding friction and two-way sealing are realized, thereby improving the service performance of the two-way valve 200. Among them, a sealing rubber part 202 is arranged at the bottom of the valve core 201 and is matched with the valve port of the two-way valve 200 for sealing. It should be noted that the two-way valve 200 can be a two-way electronic expansion valve or a stiffness valve, but is not limited thereto.

[0077] A vehicle (not shown in the figure) according to an embodiment of the third aspect of the present utility model includes the two-way valve 200 according to the embodiment of the second aspect of the present utility model described above.

[0078] According to the vehicle of the present utility model, by adopting the above-mentioned two-way valve 200, the service performance of the vehicle is improved.

[0079] The other constitutions and operations of the sealing assembly 100, the two-way valve 200 and the vehicle according to the embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0080] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0082] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A sealing assembly for a two-way valve, characterized in that, Comprising: A main body, which is adapted to be sleeved on the outer peripheral side of the valve core of the two-way valve; A first seal and a second seal, which are arranged on the main body, the first seal and the second seal are arranged along the axial direction of the main body, and grooves are respectively formed on the sides of the first seal and the second seal facing away from each other.

2. The sealing assembly for a two-way valve according to claim 1, characterized in that, Along the direction from the bottom wall of the groove towards the side surface, the width of the groove gradually increases.

3. The sealing assembly for a two-way valve according to claim 1, characterized in that, The groove has a first inner wall and a second inner wall, one end of the first inner wall is connected to one end of the second inner wall, and the other end of the first inner wall and the other end of the second inner wall extend obliquely in a direction away from each other.

4. The sealing assembly for a two-way valve according to claim 3, characterized in that, The first seal and the second seal respectively have a first wall surface and a second wall surface, and the first wall surface and the second wall surface are located on both sides in the width direction of the groove. Along the direction from the bottom wall of the groove towards the side surface, the first wall surface and the second wall surface extend obliquely in a direction away from each other. Or Along the direction from the bottom wall of the groove towards the side surface, at least one of the first wall surface and the second wall surface extends vertically along the axial direction of the main body.

5. The sealing assembly for a two-way valve according to claim 1, characterized in that, The ratio of the depth of the groove of the first seal to the length of the first seal along the axial direction of the main body is a, where a satisfies: 40% ≤ a ≤ 60%; The ratio of the depth of the groove of the second seal to the length of the second seal along the axial direction of the main body is b, where b satisfies: 40% ≤ b ≤ 60%.

6. The sealing assembly for a two-way valve according to claim 1, characterized in that, A plurality of mounting grooves are formed on the main body, the first seal and the second seal are respectively arranged in the plurality of mounting grooves, and a fluid space is defined between the groove and the inner wall of the corresponding mounting groove.

7. The sealing assembly for a two-way valve according to claim 6, characterized in that, Along the direction radially inwards of the main body, at least a part of the inner wall of the mounting groove extends obliquely in a direction away from the groove.

8. The sealing assembly for a two-way valve according to claim 1, characterized in that, The shape of the inner peripheral surface of the main body is adapted to match the shape of the outer peripheral surface of the valve core.

9. The sealing assembly for a two-way valve according to claim 1, characterized in that, The first seal and the second seal are respectively Gleitrings.

10. The sealing assembly for a two-way valve according to any one of claims 1-9, characterized in that, The first seal and the second seal are respectively elastic members.

11. A two-way valve, characterized in that, Comprising: A valve core; A sealing assembly, which is the sealing assembly for a two-way valve according to any one of claims 1-10, the sealing assembly is located on the outer peripheral side of the valve core, and the first seal and the second seal of the sealing assembly are respectively in interference fit with the valve core.

12. A vehicle, characterized in that, Comprising the two-way valve according to claim 11.

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