Pipeline safety emptying valve

Abstract

The utility model discloses a pipeline safety blowoff valve, particularly relates to blowoff valve technical field, including first valve body and second valve body, wherein the first valve body is provided the one side of second valve body, wherein the sealing mechanism is provided between first valve body and second valve body, and one side of first valve body is provided with the dismounting mechanism, and the dismounting mechanism is provided with the sealing mechanism. The dismounting mechanism comprises a first fixing plate arranged on one side of the first valve body, a protruding block is arranged on one side of the first fixing plate, a clamping block is arranged on one side of the first fixing plate, a sealing gasket is arranged on one side of the first fixing plate, and a supporting plate is arranged on the other side of the first fixing plate. A movable block is arranged at the top of the supporting plate, and a threaded rod is arranged on one side of the movable block. According to the utility model, the valve body can be conveniently disassembled, so that the valve rod or the valve core in the valve body can be conveniently maintained and replaced, the service life is prolonged, and meanwhile, the sealing effect is also enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of drain valves, and more specifically, to a pipeline safety drain valve. Background Art

[0002] Pipeline drain valves are generally used as devices for draining solar water heater pipes. At present, solar water heaters are increasingly used due to their significant energy-saving and environmental protection features. In order to improve their safety, pipeline drain valves are used to effectively drain the residual medium inside the pipeline system, while ensuring safety performance and reliability during the draining process.

[0003] However, during use, especially when the temperature is low in winter, the upper and lower outdoor pipes are often frozen and blocked, affecting normal use. The prior art often uses electronic drain valves or pipe heating tapes, which bring hidden safety hazards, high energy consumption, short life, and are prone to fire and electric shock accidents.

[0004] After searching, a Chinese patent with publication number CN203585505U discloses a solar pipeline drain valve. The negative pressure transmitted to the diaphragm housing through the connecting conduit is also small, which cannot drive the diaphragm to move. The upper diaphragm and the lower diaphragm do not move, and the valve remains in a non-conducting state. When the water flow in the pipeline is large, the negative pressure generated at the water outlet end of the valve body is large, and the negative pressure transmitted to the diaphragm housing through the connecting conduit is also large. Under the action of the negative pressure, the lower diaphragm moves upward, driving the valve stem and the sealing gasket to move upward together, and the valve remains in a conducting state. By controlling the size of the flow, the valve can be turned on or the air inlet can be turned on, so as to achieve the purpose of draining the water in the solar pipeline, prevent the solar pipeline from freezing in winter, and ensure the reliable use of solar energy.

[0005] However, in actual use, the structure is an integrated setting. When the internal diaphragm or valve is loose or damaged, it is not convenient to repair and replace. At the same time, the upper diaphragm and the lower diaphragm need to move in the valve body, resulting in serious wear on the surface of the upper diaphragm and the lower diaphragm, thereby affecting the overall sealing and the use effect. Utility Model Content

[0006] In order to overcome the above defects of the prior art, the utility model provides a pipeline safety drain valve to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A pipeline safety drain valve comprises a first valve body and a second valve body, wherein the first valve body is arranged on one side of the second valve body, a sealing mechanism is arranged between the first valve body and the second valve body, and a disassembly mechanism is arranged on one side of the first valve body;

[0009] The disassembly mechanism includes a first fixed plate arranged on one side of the first valve body, a protruding block is arranged on one side of the first fixed plate, a clamping block is arranged on one side of the first fixed plate, a sealing gasket is arranged on one side of the first fixed plate, a support plate is arranged on the other side of the first fixed plate, a movable block is arranged on the top of the support plate, a threaded rod is arranged on one side of the movable block, a stabilizing block and a connecting block are sleeved on the threaded rod, the connecting block is arranged on one side of the stabilizing block, a first spring is arranged on one side of the stabilizing block, and one end of the threaded rod passes through the first fixed plate and extends to one side of the first fixed plate.

[0010] By adopting the above technical solution: in order to facilitate the disassembly of the valve body, it is convenient to repair and replace the internal valve stem or valve core, thereby extending the service life.

[0011] As a further description of the above technical solution: a second fixed plate is provided on one side of the second valve body, and a groove and a clamping groove are provided on the surface of the second fixed plate, the groove is provided on one side of the clamping groove, the groove is movably engaged with the protruding block, the clamping groove is movably engaged with the clamping block, and a threaded groove is provided on the surface of the second fixed plate, and the threaded groove is movably engaged with the threaded rod.

[0012] By adopting the above technical solution: in order to strengthen the sealing between the first valve body and the second valve body, leakage is prevented.

[0013] As a further description of the above technical solution: the sealing mechanism includes a partition arranged between the first valve body and the second valve body, a valve stem is arranged at the bottom of the partition, a second spring is sleeved on the valve stem, a valve core is arranged at the bottom of the valve stem, a circular block is arranged at the bottom of the valve core, a sealing ring is arranged on the surface of the valve core, a connecting pipe is arranged at the bottom of the first valve body, a water inlet pipe is arranged on one side of the connecting pipe, and a drain pipe is arranged on the other side of the connecting pipe.

[0014] By adopting the above technical solution: in order to further improve the sealing effect, it is possible to maintain a stable sealing effect under high temperature and high pressure environment, thereby ensuring long-term stable operation.

[0015] Technical effects and advantages of the utility model:

[0016] 1. By setting up a disassembly mechanism, compared with the prior art, the staff holds the movable block and rotates it counterclockwise, thereby driving the movable rod to rotate, and the movable rod rotates inside the first fixed plate and separates from the fixed groove, and then separates the protruding block on one side of the first valve body from the groove, and then separates the clamping block from the clamping groove, and then the first valve body and the second valve body are disassembled, which is convenient for assembly, maintenance and replacement. At the same time, the operation is convenient and quick, and the production efficiency can be improved and the cost can be reduced;

[0017] 2. By setting a sealing mechanism, compared with the prior art, when the water supply stops, the valve core falls down by itself under the action of gravity, and the bottom of the valve core fits tightly with the bottom of the drain pipe, and the round block is just stuck inside the drain pipe and against the inner end surface, thereby improving the sealing effect. At this time, the external hot water pipe is in a closed state, and due to the pressure difference between the water inlet pipe and the external air inlet pipe, air enters the first valve body and the second valve body at this time, and the residual water in the first valve body and the second valve body is discharged, thereby achieving the purpose of anti-freezing, optimizing the structural layout, and reducing the volume of the drain valve to adapt to more types of pipeline installation environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the disassembly mechanism structure of the utility model.

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0021] Figure 4 This is a schematic diagram of the second valve body structure of the utility model.

[0022] Figure 5 This is a schematic diagram of the sealing mechanism structure of the utility model.

[0023] The accompanying drawings are marked as follows: 1. first valve body; 2. second valve body; 3. first fixed plate; 4. protruding block; 5. clamping block; 6. sealing gasket; 7. support plate; 8. movable block; 9. threaded rod; 10. connecting block; 11. first spring; 12. second fixed plate; 13. groove; 14. clamping groove; 15. threaded groove; 16. partition; 17. valve stem; 18. second spring; 19. valve core; 20. round block; 21. sealing ring; 22. connecting pipe; 23. water inlet pipe; 24. drain pipe. DETAILED DESCRIPTION

[0024] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0025] The embodiments of this application disclose Figure 1-5A pipeline safety drain valve shown includes a first valve body 1 and a second valve body 2, wherein the first valve body 1 is arranged on one side of the second valve body 2, a sealing mechanism is arranged between the first valve body 1 and the second valve body 2, and a disassembly mechanism is arranged on one side of the first valve body 1;

[0026] The disassembly mechanism includes a first fixed plate 3 arranged on one side of the first valve body 1, a protruding block 4 is arranged on one side of the first fixed plate 3, a clamping block 5 is arranged on one side of the first fixed plate 3, a sealing gasket 6 is arranged on one side of the first fixed plate 3, a support plate 7 is arranged on the other side of the first fixed plate 3, a movable block 8 is arranged on the top of the support plate 7, a threaded rod 9 is arranged on one side of the movable block 8, a stabilizing block and a connecting block 10 are sleeved on the threaded rod 9, the connecting block 10 is arranged on one side of the stabilizing block, a first spring 11 is arranged on one side of the stabilizing block, one end of the threaded rod 9 passes through the first fixed plate 3 and extends to one side of the first fixed plate 3, the staff holds the movable block 8 and rotates it clockwise, thereby driving the threaded rod 9 to rotate, the threaded rod 9 rotates inside the connecting block 10 until it enters the inside of the first fixed plate 3, and continues to rotate to make the threaded rod 9 enter the threaded groove 15 opened on the surface of the second fixed plate 12, thereby fixing the first valve body 1 and the second valve body 2, which is convenient for assembly, maintenance and replacement. At the same time, the modular design can also improve production efficiency and reduce costs.

[0027] Reference Figure 2-3 As shown, a second fixing plate 12 is provided on one side of the second valve body 2, and a groove 13 and a clamping groove 14 are provided on the surface of the second fixing plate 12. The groove 13 is provided on one side of the clamping groove 14, and the groove 13 is movably clamped with the protruding block 4, and the clamping groove 14 is movably clamped with the clamping block 5. A threaded groove 15 is provided on the surface of the second fixing plate 12, and the threaded groove 15 is movably clamped with the threaded rod 9. The first valve body 1 and the second valve body 2 are assembled, and the protruding block 4 on one side of the first valve body 1 is aligned with the groove 13, and then the clamping block 5 is aligned with the clamping groove 14, and then the first valve body 1 is moved to one side of the second valve body 2, so that the protruding block 4 is inserted into the inside of the groove 13, and the clamping block 5 also enters the inside of the clamping groove 14, thereby improving the sealing effect.

[0028] Reference Figure 1 , 5As shown, the sealing mechanism includes a partition 16 arranged between the first valve body 1 and the second valve body 2, a valve stem 17 is arranged at the bottom of the partition 16, a second spring 18 is sleeved on the valve stem 17, a valve core 19 is arranged at the bottom of the valve stem 17, a round block 20 is arranged at the bottom of the valve core 19, a sealing ring 21 is arranged on the surface of the valve core 19, a connecting pipe 22 is arranged at the bottom of the first valve body 1, a water inlet pipe 23 is arranged on one side of the connecting pipe 22, and a drain pipe 24 is arranged on the other side of the connecting pipe 22. Indoor cold water enters the connecting pipe 22 from the water inlet pipe 23, and enters the first valve body 1 and the second valve body 2 at the same time. At this time, the water inlet pipe 23 is in a closed state, and the valve core 19 flows upward along the hot water pipe under the action of the upper water pressure. When the water supply stops, the valve core 19 falls down by itself under the action of gravity, and the bottom of the valve core 19 fits tightly with the bottom of the drain pipe 24, and the circular block 20 is just stuck in the inside of the drain pipe 24 and against the inner end surface. At this time, the external hot water pipe is in a closed state, and due to the pressure difference between the water inlet pipe 23 and the external air inlet pipe, air enters the first valve body 1 and the second valve body 2 at this time, and the residual water in the first valve body 1 and the second valve body 2 is discharged, thereby achieving the purpose of antifreeze, optimizing the structural layout, and reducing the volume of the drain valve to adapt to more types of pipeline installation environments.

[0029] Working principle of the utility model: When the utility model is used, the first valve body 1 and the second valve body 2 are assembled first, the protruding block 4 on one side of the first valve body 1 is aligned with the groove 13, and then the clamping block 5 is aligned with the clamping groove 14, and then the first valve body 1 is moved to one side of the second valve body 2, so that the protruding block 4 is inserted into the inside of the groove 13, and the clamping block 5 also enters the inside of the clamping groove 14. At the same time, the staff holds the movable block 8 and rotates it clockwise, thereby driving the threaded rod 9 to rotate. The threaded rod 9 rotates inside the connecting block 10 until it enters the inside of the first fixed plate 3, and continues to rotate so that the threaded rod 9 enters the threaded groove 15 opened on the surface of the second fixed plate 12, thereby fixing the first valve body 1 and the second valve body 2, which is convenient for assembly, maintenance and replacement. At the same time, the modular design can also improve production efficiency and reduce costs;

[0030] When water is supplied indoors, indoor cold water enters the connecting pipe 22 from the water inlet pipe 23, and enters the first valve body 1 and the second valve body 2 at the same time. At this time, the water inlet pipe 23 is in a closed state, and the valve core 19 moves upward along the hot water pipe under the action of the water supply pressure, and the external hot water pipe is in an open state. The second spring 18 sleeved on the valve stem 17 is deformed, and the valve core 19 at the lower part of the valve stem 17 rises, and the water supply continues. When the water supply stops, the valve core 19 falls down by itself under the action of gravity, and the bottom of the valve core 19 fits tightly with the bottom of the drain pipe 24, and the circular block 20 is just stuck in the inside of the drain pipe 24 and against the inner end surface. At this time, the external hot water pipe is in a closed state, and due to the pressure difference between the water inlet pipe 23 and the external air inlet pipe, air enters the first valve body 1 and the second valve body 2 at this time, and the residual water in the first valve body 1 and the second valve body 2 is discharged, thereby achieving the purpose of antifreeze, optimizing the structural layout, and reducing the volume of the drain valve to adapt to more types of pipeline installation environments.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipeline safety drain valve, comprising a first valve body (1) and a second valve body (2), characterized in that: The first valve body (1) is arranged on one side of the second valve body (2), a sealing mechanism is arranged between the first valve body (1) and the second valve body (2), and a disassembly mechanism is arranged on one side of the first valve body (1); The disassembly mechanism comprises a first fixed plate (3) arranged on one side of the first valve body (1), a protruding block (4) being arranged on one side of the first fixed plate (3), a clamping block (5) being arranged on one side of the first fixed plate (3), a sealing gasket (6) being arranged on one side of the first fixed plate (3), a supporting plate (7) being arranged on the other side of the first fixed plate (3), a movable block (8) being arranged on the top of the supporting plate (7), a threaded rod (9) being arranged on one side of the movable block (8), a stabilizing block and a connecting block (10) being sleeved on the threaded rod (9), the connecting block (10) being arranged on one side of the stabilizing block, a first spring (11) being arranged on one side of the stabilizing block, and one end of the threaded rod (9) passing through the first fixed plate (3) and extending toward one side of the first fixed plate (3).

2. The pipeline safety drain valve according to claim 1, characterized in that: A second fixing plate (12) is provided on one side of the second valve body (2); a groove (13) and a clamping groove (14) are provided on the surface of the second fixing plate (12); the groove (13) is provided on one side of the clamping groove (14); and the groove (13) is movably clamped with the protruding block (4).

3. The pipeline safety drain valve according to claim 2, characterized in that: The clamping groove (14) is movably clamped with the clamping block (5); a thread groove (15) is provided on the surface of the second fixing plate (12); and the thread groove (15) is movably clamped with the threaded rod (9).

4. The pipeline safety drain valve according to claim 1, characterized in that: The sealing mechanism comprises a partition plate (16) arranged between the first valve body (1) and the second valve body (2).

5. The pipeline safety drain valve according to claim 4, characterized in that: A valve stem (17) is provided at the bottom of the partition (16), and a second spring (18) is sleeved on the valve stem (17).

6. The pipeline safety drain valve according to claim 5, characterized in that: A valve core (19) is arranged at the bottom of the valve stem (17), a circular block (20) is arranged at the bottom of the valve core (19), and a sealing ring (21) is arranged on the surface of the valve core (19).

7. The pipeline safety drain valve according to claim 1, characterized in that: A connecting pipe (22) is provided at the bottom of the first valve body (1), a water inlet pipe (23) is provided on one side of the connecting pipe (22), and a drain pipe (24) is provided on the other side of the connecting pipe (22).

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