One-way valve structure for automobile air conditioner

Abstract

The one-way valve structure for the automobile air conditioner comprises a valve seat, an operating handle arranged on the valve seat and a connecting rod fixedly connected with the operating handle, the valve seat is of a cavity structure with an opening in the bottom and a hollow interior, and a driving rod and a valve element connected with the driving rod are arranged in a cavity of the valve seat. The end, away from the valve element, of the driving rod is connected with the connecting rod, an inner connecting ring and a connecting seat are arranged at the end, away from the driving rod, of the valve element, a movable groove is formed in the connecting seat, a bag is arranged in the movable groove and comprises a contraction bag, and a pressure bearing bag and a sealing bag are arranged at the two ends of the contraction bag respectively. According to the one-way valve structure for the automobile air conditioner, through cooperation of the connecting base and the bag body, when closing is needed, the valve element extrudes the bag body, so that the connecting groove is filled with the sealing bag, the sealing thin groove is filled with the protruding bag, two seals are formed, and the better sealing effect is achieved.

Description

Technical Field

[0001] This utility model relates to a one-way valve structure, specifically a one-way valve structure for automotive air conditioning. Background Technology

[0002] The one-way valve structure of an automotive air conditioning system mainly consists of a valve body, valve core, spring, and seals. Its working principle is as follows: When the refrigerant flows in the forward direction, the valve core is pushed open and to the limit ring due to the flow pressure of the refrigerant itself, thereby enabling the one-way valve to open. When the refrigerant flows in the reverse direction, the pressure difference between the two ends of the one-way valve will cause the valve core to press tightly against the valve seat, thereby ensuring that the one-way valve is in the closed state.

[0003] The existing one-way valve structure for automotive air conditioning typically uses only one sealing gasket (or other sealing structure) when the valve core is required for sealing. The sealing gasket is fixed and has very little elasticity (almost negligible), resulting in a mediocre sealing effect and the possibility of leakage after prolonged use. Utility Model Content

[0004] The purpose of this utility model is to provide a one-way valve structure for automotive air conditioning, which compresses the valve core against the bladder, thereby filling the connecting groove with the sealing bladder and filling the sealing groove with the protruding bladder, forming two seals and producing a better sealing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a one-way valve structure for automotive air conditioning, including a valve seat, an operating handle disposed on the valve seat, and a connecting rod fixedly connected to the operating handle. The valve seat is a cavity structure with an opening at the bottom and a hollow interior. A drive rod and a valve core connected to the drive rod are disposed within the cavity of the valve seat. The end of the drive rod away from the valve core is connected to the connecting rod. An inner connecting ring and a connecting seat are disposed at the end of the valve core away from the drive rod. A movable groove is disposed on the connecting seat. A bladder is disposed within the movable groove. The bladder includes a contraction bladder, and a pressure-bearing bladder and a sealing bladder are respectively disposed at both ends of the contraction bladder.

[0006] Preferably, both the inner connecting ring and the connecting seat are annular in design, with the inner connecting ring fixed to the inner wall of the valve seat cavity and the connecting seat fixed to the inner side of the inner connecting ring.

[0007] Preferably, the movable groove surrounds the interior of the connecting seat, and the movable groove has two openings.

[0008] Preferably, the connecting seat has a contact plane that is adapted to the lower end face of the valve core.

[0009] Preferably, a connecting groove is provided on the lower end face of the valve core, and a sealing groove is provided in the connecting groove.

[0010] Preferably, the pressure-bearing bladder, the contraction bladder, and the sealing bladder are all disposed within the movable groove, and the end of the sealing bladder away from the contraction bladder is provided with a protruding bladder, the width of which is greater than the width of the sealing bladder.

[0011] Preferably, the capsule is a hollow cavity structure, and the air pressure inside the capsule is greater than one standard atmosphere.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a movable bladder between the valve core and the valve seat, when the valve core closes the entire valve seat, the valve core presses against the pressure-bearing bladder and squeezes the entire bladder, causing the pressure-bearing bladder to contract and the internal gas to rush towards the sealing bladder and the protruding bladder, while driving the sealing bladder and the protruding bladder to move outward, so that the sealing bladder fills the connecting groove and the protruding bladder fills the sealing groove, forming a double sealing effect, thereby producing a better sealing effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0014] Figure 2 This utility model Figure 1 Sectional view of AA;

[0015] Figure 3 This utility model Figure 2 Enlarged view of B in the middle;

[0016] Figure 4 This is a schematic diagram showing the fit between the valve core and the connecting seat of this utility model;

[0017] Figure 5 This utility model Figure 4 A magnified view of C.

[0018] The reference numerals and names in the figure are as follows: 1. Valve seat; 2. Operating handle; 3. Connecting rod; 4. Drive rod; 5. Valve core; 51. Connecting groove; 52. Sealing groove; 6. Inner connecting ring; 7. Connecting seat; 71. Movable groove; 72. Contact plane; 8. Bladder body; 81. Pressure-bearing bladder; 82. Contraction bladder; 83. Sealing bladder; 84. Protruding bladder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 the embodiments of this utility model and simplifying the description. They 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0022] Please see Figure 1 One embodiment of this utility model is a one-way valve structure for automotive air conditioning, including a valve seat 1, an operating handle 2 disposed on the valve seat 1, and a connecting rod 3 fixedly connected to the operating handle 2.

[0023] Please see Figure 2 The valve seat 1 is a cavity structure with an opening at the bottom and a hollow interior. A drive rod 4 and a valve core 5 connected to the drive rod 4 are provided in the cavity of the valve seat 1. The end of the drive rod 4 away from the valve core 5 is connected to the connecting rod 3. An inner connecting ring 6 is provided at the end of the valve core 5 away from the drive rod 4.

[0024] Please see Figure 3 A connecting groove 51 is provided on the lower end face of the valve core 5, and a sealing groove 52 is provided in the connecting groove 51. The width of the sealing groove 52 is greater than the width of the connecting groove 51. Both the connecting groove 51 and the sealing groove 52 are annular. A connecting seat 7 is fixed on the inner side of the inner connecting ring 6. Both the inner connecting ring 6 and the connecting seat 7 are annular. The inner connecting ring 6 is fixed to the inner wall of the cavity of the valve seat 1. The connecting seat 7 has a contact plane 72.

[0025] Please see Figures 4 to 5A movable groove 71 is provided on the connecting seat 7, surrounding the interior of the connecting seat 7. A bladder 8 is provided within the movable groove 71. The bladder 8 is a hollow cavity structure, and the air pressure inside the bladder 8 is greater than one standard atmosphere, specifically 1.05 to 1.12 times one standard atmosphere. In this embodiment, the gas inside the bladder 8 is an inert gas. The bladder 8 includes a contraction bladder 82, with a pressure-bearing bladder 81 and a sealing bladder 83 respectively provided at both ends. The movable groove 71 has two openings, thus the movable groove 71 has an overall annular design. The two openings on the movable groove 71 allow the pressure-bearing bladder 81 and the sealing bladder 83 to extend from the two openings. The pressure-bearing bladder 81, the contraction bladder 82, and the sealing bladder 83 are all... Located within the movable groove 71, the sealing bladder 83 has a protruding bladder 84 at its end away from the contraction bladder 82. The width of the protruding bladder 84 is greater than the width of the sealing bladder 83. The protruding bladder 84 can enter the sealing groove 52, and the sealing bladder 83 can enter the connecting groove 51. Thus, the sealing bladder 83 and its protruding bladder 84 completely seal the connecting groove 51 and the sealing groove 52. The protruding bladder 84 entering the sealing groove 52 (since the width of the sealing groove 52 is greater than the width of the connecting groove 51) provides an additional sealing effect, resulting in a better sealing performance. The contact plane 72 can be adapted to the lower end face of the valve core 5, allowing the valve core 5 to press against the contact plane 72 and compress the pressure bladder 81 into the movable groove 71.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A one-way valve structure for an automobile air conditioner, comprising a valve seat (1), an operating handle (2) arranged on the valve seat (1), and a connecting rod (3) fixedly connected with the operating handle (2), characterized in that: The valve seat (1) is a cavity structure with an open bottom and a hollow interior, and a driving rod (4) and a valve core (5) connected with the driving rod (4) are arranged in the cavity of the valve seat (1), one end of the driving rod (4) away from the valve core (5) is connected with a connecting rod (3), one end of the valve core (5) away from the driving rod (4) is provided with an inner connecting ring (6) and a connecting seat (7), the connecting seat (7) is provided with a movable groove (71), and a capsule (8) is arranged in the movable groove (71), the capsule (8) comprises a contraction capsule (82), and both ends of the contraction capsule (82) are respectively provided with a pressure-bearing capsule (81) and a sealing capsule (83).

2. The check valve structure for use in an automotive air conditioner according to claim 1, characterized by: The inner connecting ring (6) and the connecting seat (7) are both annular designs, the inner connecting ring (6) is fixed to the inner wall of the cavity of the valve seat (1), and the connecting seat (7) is fixed to the inner side of the inner connecting ring (6).

3. The check valve structure for use in an automotive air conditioner according to claim 1, wherein: The movable groove (71) surrounds the inside of the connecting seat (7), and the movable groove (71) has two openings.

4. The check valve structure for use in an automotive air conditioner according to claim 1, characterized by: The connecting seat (7) has a contact plane (72) which is adapted to the lower end surface of the valve core (5).

5. The check valve structure for use in an automotive air conditioner according to claim 1, characterized by: The lower end surface of the valve core (5) is provided with a connecting groove (51), and the connecting groove (51) is provided with a sealing groove (52).

6. The check valve structure for an automotive air conditioner according to claim 1, wherein: The pressure-bearing capsule (81), the contraction capsule (82) and the sealing capsule (83) are all arranged in the movable groove (71), one end of the sealing capsule (83) away from the contraction capsule (82) is provided with a protruding capsule (84), and the width of the protruding capsule (84) is greater than the width of the sealing capsule (83).

7. The check valve structure for use in an automotive air conditioner according to claim 1, characterized by: The capsule (8) is a cavity structure with a hollow interior, and the air pressure value in the capsule (8) is greater than one standard atmospheric pressure value.

Images