Hand-operated direction valve

Abstract

The manual reversing valve comprises a valve body, the upper end of the interior of the valve body is movably connected with a first valve element, the lower end of the interior of the valve body is movably connected with a second valve element, a connecting rod is arranged in the center of the top end of the second valve element, and the top end of the connecting rod is connected with the bottom end of the first valve element. A first liquid outlet pipe opening is formed in the upper end of the surface of the valve body, one end of the first liquid outlet pipe opening extends into the valve body, a second liquid outlet pipe opening is formed in the position, below the first liquid outlet pipe opening, of the surface of the valve body, a first fluid conveying cavity is formed in the first valve element, and a second fluid conveying cavity is formed in the second valve element. A first liquid supply pipe opening is formed in the outer wall of one side of the valve body. According to the reversing valve, the function that the reversing valve conveys fluid in a double-channel mode is achieved, conveying control can be conducted on the fluid in a double-station mode, the conveying efficiency of the fluid in the using process of the reversing valve is improved, the leakage phenomenon generated in the fluid conveying process is reduced, and the sealing performance of the reversing valve in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid control, in particular to a manual reversing valve. Background Art

[0002] Traditional reversing valves are mostly driven by electric, pneumatic or electromagnetic means. Although they have a high degree of automation, in certain specific situations, such as insufficient power supply, harsh environment or the need for emergency manual intervention, manual reversing valves are particularly important due to their simple structure, direct operation and high reliability.

[0003] A manual reversing valve with reference announcement number CN206429741U includes a valve body, a handle and a handle positioning mechanism; the handle positioning mechanism is composed of a fixed seat, a movable plate, a spring seat, a spring and a cylindrical pin; the fixed seat is fixed to the valve body of the manual reversing valve by screws, a movable plate is arranged above the fixed seat, the movable plate is connected to the fixed seat by a cylindrical pin and can be rotated by the cylindrical pin as an axis, and the front end of the movable plate is fixedly connected to the handle; a spring for assisting in fixing the movable plate is arranged below the movable plate, the spring is contained in the through hole of the fixed seat, and the movable plate is connected to the fixed seat by a cylindrical pin and can be rotated by the cylindrical pin as an axis, and the front end of the movable plate is fixedly connected to the handle; a spring for assisting in fixing the movable plate is arranged below the movable plate, and the spring is contained in the through hole of the fixed seat. hole; the side section of the movable plate is processed into an angled slope. The reversing valve has a simple structure, a compact appearance, is easy to operate and easy to process. It can realize the positioning of the handle in the middle position to prevent it from shifting. According to the above, although the reversing valve can be well applied, it is usually not convenient to perform dual-channel fluid control operations, making it difficult for the control efficiency of the reversing valve to reach the established expectations. In addition, the reversing valve does not seal the contact area between the oil inlet component and the valve core component, making it difficult for the sealing performance of the reversing valve to reach the established expectations and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a manual reversing valve to solve the problem that the reversing valve mentioned in the above background technology can be well applied, but it is usually not convenient to perform dual-channel fluid control operations, making it difficult for the control efficiency of the reversing valve to reach the established expectations. In addition, the reversing valve does not seal the contact area between the oil inlet component and the valve core component, making it difficult for the sealing performance of the reversing valve to reach the established expectations.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a manual reversing valve, comprising a valve body, the upper end of the inner part of the valve body is movably connected with a first valve core, the lower end of the inner part of the valve body is movably connected with a second valve core, a connecting rod is provided at the center position of the top end of the second valve core, the top end of the connecting rod is connected to the bottom end of the first valve core, a first liquid outlet pipe port is provided at the upper end of the valve body surface, one end of the first liquid outlet pipe port extends to the interior of the valve body, a second liquid outlet pipe port is provided on the valve body surface below the first liquid outlet pipe port, one end of the second liquid outlet pipe port extends to the interior of the valve body, a first fluid delivery chamber is provided inside the first valve core, a second fluid delivery chamber is provided inside the second valve core, a first liquid supply pipe port is provided on the outer wall of one side of the valve body, and the first liquid supply pipe port is provided One end of the pipe mouth extends to the interior of the valve body, a second liquid supply pipe mouth is provided on the outer wall of the valve body below the first liquid supply pipe mouth, one end of the second liquid supply pipe mouth extends to the interior of the valve body, a first liquid inlet pipe mouth is provided on the outer wall of the valve body away from the first liquid supply pipe mouth, one end of the first liquid inlet pipe mouth extends to the interior of the valve body, a second liquid inlet pipe mouth is provided on the outer wall of the valve body below the first liquid inlet pipe mouth, one end of the second liquid inlet pipe mouth extends to the interior of the valve body, a first sealing ring is provided at the contact position of the first liquid inlet pipe mouth and the first valve core, a second sealing ring is provided at the contact position of the first liquid supply pipe mouth and the first valve core, a third sealing ring is provided at the contact position of the second liquid inlet pipe mouth and the second valve core, and a fourth sealing ring is provided at the contact position of the second liquid supply pipe mouth and the second valve core.

[0006] Preferably, a first liquid inlet port is provided inside the first liquid inlet pipe opening, and both ends of the first liquid inlet port extend to the outside of the first liquid inlet pipe opening, so that the fluid can be transported and injected through the provision of the first liquid inlet port.

[0007] Preferably, a second liquid inlet port is provided inside the second liquid inlet pipe opening, and both ends of the second liquid inlet port extend to the outside of the second liquid inlet pipe opening, so that the fluid can be transported and injected through the provision of the second liquid inlet port.

[0008] Preferably, a first liquid outlet port is provided inside the first liquid outlet pipe port, and both ends of the first liquid outlet port extend to the outside of the first liquid outlet pipe port; a second liquid outlet port is provided inside the second liquid outlet pipe port, and both ends of the second liquid outlet port extend to the outside of the second liquid outlet pipe port, and the second liquid outlet port is provided to facilitate fluid discharge processing.

[0009] Preferably, a first liquid supply port is provided inside the first liquid supply pipe opening, and both ends of the first liquid supply port extend to the outside of the first liquid supply pipe opening, so that the fluid can be supplied for processing.

[0010] Preferably, a second liquid supply port is provided inside the second liquid supply pipe opening, and both ends of the second liquid supply port extend to the outside of the second liquid supply pipe opening, so that the fluid can be supplied for processing.

[0011] Preferably, a valve stem is provided at the center position of the top end of the first valve core, the top end of the valve stem extends to the outside of the valve body and is provided with a valve handle, and the valve handle is rotated so as to drive the first valve core and the second valve core to rotate via the valve stem.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the manual reversing valve not only realizes the function of dual-channel fluid delivery of the reversing valve, but also can control the delivery of the fluid in two positions, so as to improve the delivery efficiency of the fluid when the reversing valve is used, and reduces the leakage phenomenon in the process of fluid delivery, so as to improve the sealing performance of the reversing valve when it is used;

[0013] (1) By rotating the valve handle, the valve stem drives the first valve core and the second valve core to rotate, so as to adjust the angle of the first fluid delivery chamber and the second fluid delivery chamber. When the first fluid delivery chamber is calibrated at the first liquid supply pipe opening and the first liquid outlet pipe opening or the first liquid inlet pipe opening and the first liquid outlet pipe opening, and the second fluid delivery chamber is calibrated at the second liquid supply pipe opening and the second liquid outlet pipe opening or the second liquid inlet pipe opening and the second liquid outlet pipe opening, the inlet and outlet positions of the fluid can be adjusted to realize the function of the reversing valve to deliver fluid in dual channels, thereby improving the delivery efficiency of the fluid when the reversing valve is used;

[0014] (2) By respectively arranging a first sealing ring and a second sealing ring at the connection position between the first valve core and the first liquid inlet pipe port and the first liquid supply pipe port, and respectively arranging a third sealing ring and a fourth sealing ring at the connection position between the second valve core and the second liquid inlet pipe port and the second liquid supply pipe port, the contact position between the first valve core and the first liquid inlet pipe port and the first liquid supply pipe port and the contact position between the second valve core and the second liquid inlet pipe port and the second liquid supply pipe port can be sealed to reduce leakage during fluid transportation, thereby improving the sealing performance of the reversing valve when in use;

[0015] (3) The first valve core and the second valve core are connected by a connecting rod. When the valve handle is rotated, the valve handle drives the first valve core to rotate through the valve stem, and the first valve core drives the second valve core to rotate synchronously through the connecting rod, so that the fluid delivery can be controlled in a double-position manner, thereby further improving the fluid delivery efficiency when the reversing valve is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a left-side structural schematic diagram of the utility model;

[0017] Figure 2 It is a right side structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the first valve core and the second valve core of the utility model.

[0020] In the figure: 1. valve body; 2. valve handle; 3. first liquid inlet; 301. first liquid inlet port; 4. second liquid inlet; 401. second liquid inlet port; 5. first liquid outlet; 501. first liquid outlet; 6. second liquid outlet; 601. second liquid outlet; 7. first liquid supply port; 701. first liquid supply port; 8. second liquid supply port; 801. second liquid supply port; 9. valve stem; 10. first valve core; 11. connecting rod; 12. second valve core; 13. first sealing ring; 14. second sealing ring; 15. third sealing ring; 16. fourth sealing ring; 17. first fluid delivery chamber; 18. second fluid delivery chamber. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: a manual reversing valve, comprising a valve body 1, the upper end of the valve body 1 is movably connected with a first valve core 10, a valve stem 9 is provided at the center of the top of the first valve core 10, and the top of the valve stem 9 extends to the outside of the valve body 1 and is provided with a valve handle 2;

[0023] When in use, the valve handle 2 is rotated to drive the first valve core 10 and the second valve core 12 to rotate via the valve stem 9;

[0024] The lower end of the valve body 1 is movably connected with the second valve core 12, and a connecting rod 11 is provided at the center position of the top of the second valve core 12, and the top of the connecting rod 11 is connected to the bottom end of the first valve core 10. The upper end of the surface of the valve body 1 is provided with a first liquid outlet 5, and one end of the first liquid outlet 5 extends to the inside of the valve body 1. The first liquid outlet 5 is provided with a first liquid outlet port 501, and both ends of the first liquid outlet port 501 extend to the outside of the first liquid outlet 5. The second liquid outlet 6 is provided with a second liquid outlet port 601, and both ends of the second liquid outlet port 601 extend to the outside of the second liquid outlet 6.

[0025] When in use, the second liquid outlet 601 is provided to facilitate the discharge of the fluid;

[0026] A second liquid outlet 6 is provided on the surface of the valve body 1 below the first liquid outlet 5, one end of the second liquid outlet 6 extends to the interior of the valve body 1, a first fluid delivery cavity 17 is provided inside the first valve core 10, a second fluid delivery cavity 18 is provided inside the second valve core 12, a first liquid supply pipe port 7 is provided on the outer wall of one side of the valve body 1, one end of the first liquid supply pipe port 7 extends to the interior of the valve body 1, a first liquid supply port 7 is provided inside the first liquid supply pipe port 7, and both ends of the first liquid supply port 701 extend to the outside of the first liquid supply pipe port 7;

[0027] When in use, the first liquid supply port 701 is provided to supply the fluid for processing;

[0028] A second liquid supply pipe opening 8 is provided on the outer wall of the valve body 1 below the first liquid supply pipe opening 7, one end of the second liquid supply pipe opening 8 extends to the interior of the valve body 1, a second liquid supply port 801 is provided inside the second liquid supply pipe opening 8, and both ends of the second liquid supply port 801 extend to the exterior of the second liquid supply pipe opening 8;

[0029] When in use, the second liquid supply port 801 is provided to supply the fluid for processing;

[0030] A first liquid inlet port 3 is provided on the outer wall of the valve body 1 on the side away from the first liquid supply port 7, one end of the first liquid inlet port 3 extends to the interior of the valve body 1, a first liquid inlet opening 301 is provided inside the first liquid inlet port 3, and both ends of the first liquid inlet opening 301 extend to the outside of the first liquid inlet port 3;

[0031] When in use, the first liquid inlet port 301 is provided to transport and inject the fluid;

[0032] A second liquid inlet port 4 is provided on the outer wall of the valve body 1 below the first liquid inlet port 3, one end of the second liquid inlet port 4 extends to the interior of the valve body 1, a second liquid inlet opening 401 is provided inside the second liquid inlet port 4, and both ends of the second liquid inlet opening 401 extend to the exterior of the second liquid inlet port 4;

[0033] When in use, the second liquid inlet port 401 is provided to facilitate the delivery and injection of fluid;

[0034] A first sealing ring 13 is provided at the contact position between the first liquid inlet pipe port 3 and the first valve core 10, a second sealing ring 14 is provided at the contact position between the first liquid supply pipe port 7 and the first valve core 10, a third sealing ring 15 is provided at the contact position between the second liquid inlet pipe port 4 and the second valve core 12, and a fourth sealing ring 16 is provided at the contact position between the second liquid supply pipe port 8 and the second valve core 12.

[0035] When the embodiment of the present application is used, the first liquid inlet port 3, the second liquid inlet port 4, the first liquid supply port 7 and the second liquid supply port 8 are connected to the liquid supply pipeline respectively, and the first liquid outlet port 5 and the second liquid outlet port 6 are connected to the fluid discharge pipeline. By rotating the valve handle 2, the first valve core 10 and the second valve core 12 are driven to rotate through the valve stem 9 to adjust the angle of the first fluid delivery chamber 17 and the second fluid delivery chamber 18. When the first fluid delivery chamber 17 is calibrated between the first liquid supply port 7 and the first When the first liquid outlet port 5 or the first liquid inlet port 3 and the first liquid outlet port 5 are aligned, the first fluid delivery chamber 17 will be aligned with the first liquid inlet port 301 and the first liquid outlet port 501 or the first liquid supply port 701 and the first liquid outlet port 501, and when the second fluid delivery chamber 18 is calibrated at the second liquid supply port 8 and the second liquid outlet port 6 or the second liquid inlet port 4 and the second liquid outlet port 6, the second fluid delivery chamber 18 will be aligned with the second liquid supply port 801 and the second liquid outlet port 601 or the second liquid inlet port 4 and the second liquid outlet port 6. The first valve core 10 and the second valve core 12 are connected by the connecting rod 11. When the valve handle 2 is rotated, the valve handle 2 drives the first valve core 10 to rotate through the valve stem 9, and the first valve core 10 drives the second valve core 12 to rotate synchronously through the connecting rod 11, so as to control the fluid delivery in a double position. Finally, the first valve core 10 is connected to the first liquid inlet 3 and the first supply pipe 3. A first sealing ring 13 and a second sealing ring 14 are respectively arranged at the connection position of the liquid pipe port 7, and a third sealing ring 15 and a fourth sealing ring 16 are respectively arranged at the connection position of the second valve core 12 and the second liquid inlet pipe port 4 and the second liquid supply pipe port 8. The contact positions of the first valve core 10 and the first liquid inlet pipe port 3 and the first liquid supply pipe port 7, and the second valve core 12 and the second liquid inlet pipe port 4 and the second liquid supply pipe port 8 can be sealed to improve the sealing performance of the reversing valve, thereby completing the use of the reversing valve.

Claims

1. A manual reversing valve, characterized in that: The invention comprises a valve body (1), wherein the upper end of the interior of the valve body (1) is movably connected to a first valve core (10), and the lower end of the interior of the valve body (1) is movably connected to a second valve core (12). A connecting rod (11) is provided at the center position of the top end of the second valve core (12), and the top end of the connecting rod (11) is connected to the bottom end of the first valve core (10). A first liquid outlet (5) is provided at the upper end of the surface of the valve body (1), and one end of the first liquid outlet (5) extends to the interior of the valve body (1). A second liquid outlet (6) is provided on the surface of the valve body (1) below the first liquid outlet (5), one end of the second liquid outlet (6) extends into the interior of the valve body (1), a first fluid delivery cavity (17) is provided inside the first valve core (10), a second fluid delivery cavity (18) is provided inside the second valve core (12), a first liquid supply pipe opening (7) is provided on the outer wall of one side of the valve body (1), one end of the first liquid supply pipe opening (7) extends into the interior of the valve body (1), and the A second liquid supply pipe opening (8) is provided on the outer wall of the valve body (1) below the first liquid supply pipe opening (7), one end of the second liquid supply pipe opening (8) extends into the interior of the valve body (1), a first liquid inlet pipe opening (3) is provided on the outer wall of the valve body (1) away from the first liquid supply pipe opening (7), one end of the first liquid inlet pipe opening (3) extends into the interior of the valve body (1), a second liquid inlet pipe opening (4) is provided on the outer wall of the valve body (1) below the first liquid inlet pipe opening (3), one end of the second liquid inlet pipe opening (4) extends into the interior of the valve body (1), One end extends to the interior of the valve body (1); a first sealing ring (13) is provided at the contact position between the first liquid inlet pipe opening (3) and the first valve core (10); a second sealing ring (14) is provided at the contact position between the first liquid supply pipe opening (7) and the first valve core (10); a third sealing ring (15) is provided at the contact position between the second liquid inlet pipe opening (4) and the second valve core (12); and a fourth sealing ring (16) is provided at the contact position between the second liquid supply pipe opening (8) and the second valve core (12).

2. A manual reversing valve according to claim 1, characterized in that: A first liquid inlet opening (301) is provided inside the first liquid inlet pipe opening (3), and both ends of the first liquid inlet opening (301) extend to the outside of the first liquid inlet pipe opening (3).

3. A manual reversing valve according to claim 1, characterized in that: A second liquid inlet opening (401) is provided inside the second liquid inlet pipe opening (4), and both ends of the second liquid inlet opening (401) extend to the outside of the second liquid inlet pipe opening (4).

4. A manual reversing valve according to claim 1, characterized in that: A first liquid outlet opening (501) is provided inside the first liquid outlet pipe opening (5), and both ends of the first liquid outlet opening (501) extend to the outside of the first liquid outlet pipe opening (5); a second liquid outlet opening (601) is provided inside the second liquid outlet pipe opening (6), and both ends of the second liquid outlet opening (601) extend to the outside of the second liquid outlet pipe opening (6).

5. A manual reversing valve according to claim 1, characterized in that: A first liquid supply opening (701) is provided inside the first liquid supply pipe opening (7), and both ends of the first liquid supply opening (701) extend to the outside of the first liquid supply pipe opening (7).

6. A manual reversing valve according to claim 1, characterized in that: A second liquid supply opening (801) is provided inside the second liquid supply pipe opening (8), and both ends of the second liquid supply opening (801) extend to the outside of the second liquid supply pipe opening (8).

7. A manual reversing valve according to claim 1, characterized in that: A valve stem (9) is provided at the center position of the top end of the first valve core (10); the top end of the valve stem (9) extends to the outside of the valve body (1) and is provided with a valve handle (2).

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