High temperature leak-proof integrated check valve

Abstract

The utility model discloses a high temperature leak protection integration check valve belongs to check valve technical field, high temperature leak protection integration check valve, including the outer casing, the outside of outer casing is equipped with the limit groove, one end of outer casing is equipped with the input interface, the other end of outer casing is equipped with the output interface, the inside slide coupling of outer casing has the valve core, the outside of valve core is equipped with the recess, the inside of recess is in butt joint with spring, one end of spring and the inside of outer casing are in butt joint, the inside of valve core is equipped with the communicating groove, the outside of valve core is equipped with a plurality of communicating holes, the inside of valve core still rotationally connected with the rotating block. The utility model does not need to disassemble check valve to replace seal, solved because of frequent opening and closing, the contact surface of check valve's valve core and sealing washer is easy to produce abrasion, leads to the occurrence of leakage, needs to replace sealing washer regularly, the problem of time -consuming and labor -intensive.

Description

Technical Field

[0001] This utility model belongs to the field of one-way valve technology, and more specifically, it relates to an integrated one-way valve for high-temperature leak prevention. Background Technology

[0002] A check valve, also known as a one-way valve, is a mechanical device that relies on the fluid's own pressure or spring force to ensure that the fluid flows in only one direction and prevents reverse flow. Its core function is to prevent backflow of the medium in the pipeline, avoiding equipment damage, system failure, or safety hazards caused by backflow. Existing high-temperature leak-proof integrated check valves are prone to wear on the contact surfaces of the valve core and sealing ring due to frequent opening and closing, leading to leakage. Regular replacement of the sealing ring is time-consuming and labor-intensive. Therefore, a high-temperature leak-proof integrated check valve is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an integrated high-temperature leak-proof check valve that allows for seal replacement without disassembling the check valve. This solves the problem mentioned in the background art, where frequent opening and closing of the check valve causes wear on the contact surface between the valve core and the sealing ring, leading to leakage and requiring regular seal replacement, which is time-consuming and labor-intensive.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature leak-proof integrated one-way valve, comprising a housing, a limiting groove on the outer side of the housing, an input interface at one end of the housing, an output interface at the other end of the housing, a valve core slidably connected to the inner side of the housing, a groove on the outer side of the valve core, a spring abutting the inner side of the groove, one end of the spring abutting the inner side of the housing, a communicating groove inside the valve core, multiple communicating holes on the outer side of the valve core, a rotating block rotatably connected to the inner side of the valve core, a first sealing ring embedded at both ends of the rotating block, the outer side of the first sealing ring abutting the inner side of the housing, a through groove inside the rotating block, two second sealing rings embedded in the inner side of the through groove, the outer side of the second sealing ring abutting one end of the valve core, an internal hexagonal groove at one end of the rotating block, a connecting block fixed to the outer side of one end of the rotating block, a limiting block fixed to one end of the connecting block, the outer side of the limiting block slidably connected to the inner side of the limiting groove.

[0005] As a preferred embodiment of this utility model, the centers of the input interface and the output interface are on the same axis.

[0006] As a preferred embodiment of this utility model, the center of the valve core is on the same axis as the centers of the input interface and the output interface.

[0007] As a preferred embodiment of this utility model, the interior of the connecting hole is connected to the interior of the connecting groove.

[0008] As a preferred embodiment of this utility model, the rotating block has a cylindrical structure, and the axis of the rotating block intersects and is perpendicular to the axis of the valve core.

[0009] As a preferred embodiment of this utility model, the center of the through groove is on the same axis as the centers of the input interface and the output interface.

[0010] As a preferred embodiment of this utility model, the limiting groove has an arc-shaped structure, and the center of the limiting groove coincides with the center of the rotating block.

[0011] This utility model provides an integrated one-way valve for high-temperature leak prevention, which has the following beneficial effects:

[0012] 1. This high-temperature leak-proof integrated check valve allows for seal replacement without disassembling the check valve. This solves the problem that frequent opening and closing of the check valve core and sealing ring can easily cause wear on the contact surface, leading to leakage and requiring regular seal replacement, which is time-consuming and laborious.

[0013] 2. This high-temperature leak-proof integrated check valve has a reasonable and compact structure and good performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the integrated one-way valve for high-temperature leakage prevention of this utility model.

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of the integrated one-way valve for high-temperature leakage prevention of this utility model.

[0016] Figure 3 This is a schematic diagram of the rotating block structure of the integrated one-way valve for high-temperature leakage prevention of this utility model.

[0017] Figure 4 This is a schematic diagram of the valve core structure of the integrated high-temperature leak-proof check valve of this utility model.

[0018] In the diagram: 1. Outer shell; 2. Input interface; 3. Output interface; 4. Valve core; 5. Groove; 6. Spring; 7. Communicating groove; 8. Communicating hole; 9. Rotating block; 10. First sealing ring; 11. Through groove; 12. Internal hexagonal groove; 13. Connecting block; 14. Limiting block; 15. Limiting groove; 16. Second sealing ring. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a high-temperature leak-proof integrated one-way valve, including a housing 1, a limiting groove 15 on the outer side of the housing 1, an input interface 2 at one end of the housing 1, an output interface 3 at the other end of the housing 1, a valve core 4 slidably connected to the inner side of the housing 1, a groove 5 on the outer side of the valve core 4, a spring 6 abutting against the inner side of the groove 5, one end of the spring 6 abutting against the inner side of the housing 1, a connecting groove 7 inside the valve core 4, multiple connecting holes 8 on the outer side of the valve core 4, a rotating block 9 rotatably connected to the inner side of the valve core 4, a first sealing ring 10 embedded at both ends of the rotating block 9, the outer side of the first sealing ring 10 abutting against the inner side of the housing 1, a through groove 11 inside the rotating block 9, two second sealing rings embedded in the inner side of the through groove 11. 16. The outer side of the second sealing ring 16 abuts against one end of the valve core 4. One end of the rotating block 9 is provided with an internal hexagonal groove 12. A connecting block 13 is also fixed to the outer side of one end of the rotating block 9. A limit block 14 is fixed to one end of the connecting block 13. The outer side of the limit block 14 is slidably connected to the inner side of the limit groove 15. The centers of the input interface 2 and the output interface 3 are on the same axis. The center of the valve core 4 is on the same axis as the centers of the input interface 2 and the output interface 3. The interior of the connecting hole 8 is connected to the interior of the connecting groove 7. The rotating block 9 has a cylindrical structure. The axis of the rotating block 9 intersects and is perpendicular to the axis of the valve core 4. The center of the through groove 11 is on the same axis as the centers of the input interface 2 and the output interface 3. The limit groove 15 has an arc-shaped structure. The center of the limit groove 15 coincides with the center of the rotating block 9.

[0023] The specific usage and function of this embodiment: Liquid flows from input interface 2 to output interface 3. During this process, the liquid pressure is applied to the valve core 4 through the through groove 11 on the rotating block 9. The pressure exceeds the thrust of the spring 6, thus pushing the valve core 4 away from the through groove 11 on the rotating block 9. The liquid enters the connecting groove 7 through the connecting hole 8 on the valve core 4 and flows to the output interface 3. When the liquid pressure is lower than the thrust of the spring 6, the valve core 4 reconnects to the through groove 11 on the rotating block 9. A second sealing ring 16 is provided between the through groove 11 and the valve core 4 for sealing. When the second sealing ring 16 frequently contacts the valve core 4 and causes wear, an external hexagonal wrench is inserted into the internal hexagonal recess on the rotating block 9. Rotate the rotating block 9 to 180 degrees to adjust the position of the two second sealing rings 16. During this process, the second sealing rings 16 slip with the valve core 4, preventing the valve core 4 from jamming the rotating block 9. The rotating block 9 drives the limiting block 14 to rotate along the limiting groove 15 through the connecting block 13, thereby limiting the rotation angle of the connecting block 13. This ensures that the center of the through groove 11 is on the same axis as the centers of the input interface 2 and the output interface 3. Through the above process, the seal can be replaced without disassembling the check valve. This solves the problem that the contact surface of the valve core and the sealing ring of the check valve is prone to wear due to frequent opening and closing, leading to leakage and requiring regular replacement of the sealing ring, which is time-consuming and laborious.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-temperature leak-proof integrated check valve, comprising a housing (1), characterized in that: The outer side of the outer shell (1) has a limiting groove (15). One end of the outer shell (1) has an input interface (2), and the other end of the outer shell (1) has an output interface (3). A valve core (4) is slidably connected to the inner side of the outer shell (1). A groove (5) is opened on the outer side of the valve core (4). A spring (6) abuts against the inner side of the groove (5). One end of the spring (6) abuts against the inner side of the outer shell (1). A connecting groove (7) is opened inside the valve core (4). Multiple connecting holes (8) are opened on the outer side of the valve core (4). A rotating block (9) is rotatably connected to the inner side of the valve core (4). Both ends of the rotating block (9) are fitted with a first sealing ring (10). The outer side of the first sealing ring (10) abuts against the inner side of the outer shell (1). The rotating block (9) has a through groove (11) inside. Two second sealing rings (16) are fitted inside the through groove (11). The outer side of the second sealing ring (16) abuts against one end of the valve core (4). One end of the rotating block (9) has an internal hexagonal groove (12). A connecting block (13) is also fixed to the outer side of one end of the rotating block (9). A limit block (14) is fixed to one end of the connecting block (13). The outer side of the limit block (14) is slidably connected to the inner side of the limit groove (15).

2. The integrated high-temperature leak-proof check valve according to claim 1, characterized in that: The centers of the input interface (2) and the output interface (3) are on the same axis.

3. The integrated high-temperature leak-proof check valve according to claim 1, characterized in that: The center of the valve core (4) is on the same axis as the center of the input interface (2) and the output interface (3).

4. The integrated high-temperature leak-proof check valve according to claim 1, characterized in that: The interior of the connecting hole (8) is connected to the interior of the connecting groove (7).

5. The integrated high-temperature leak-proof check valve according to claim 1, characterized in that: The rotating block (9) has a cylindrical structure, and the axis of the rotating block (9) intersects and is perpendicular to the axis of the valve core (4).

6. The integrated high-temperature leak-proof check valve according to claim 1, characterized in that: The center of the through slot (11) is on the same axis as the centers of the input interface (2) and the output interface (3).

7. The integrated high-temperature leak-proof check valve according to claim 1, characterized in that: The limiting groove (15) has an arc-shaped structure, and the center of the limiting groove (15) coincides with the center of the rotating block (9).

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