Automatic exhaust valve for heat exchange unit

Abstract

The utility model provides an automatic exhaust valve for a heat exchange unit, which relates to the technical field of exhaust valves and comprises a cavity and a mounting component, an exhaust pipe is arranged on one side of the cavity, a spring is arranged in the exhaust pipe, a connecting rod is arranged at one end of the spring, a ball is arranged on one side, far away from the spring, of the connecting rod, and the mounting component is arranged in the cavity. A blocking device is arranged on the outer wall of the cavity through an installation assembly and comprises a containing plate, one side of the containing plate is in threaded connection with a first bolt, one side of the first bolt is rotationally connected with a blocking plate, the size of the blocking plate is matched with the size of the exhaust pipe, and the section of the blocking plate is in a U shape. By using the blocking device, the deformation distance of the spring and the moving distance of the connecting rod can be limited, and then when the ball body moves downwards, the ball body does not collide with the lower end of the cavity, so that the service life of the ball body can be prolonged, and the using effect of the automatic exhaust valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust valves, in particular to an automatic exhaust valve for a heat exchange unit. Background Art

[0002] An exhaust valve is a common auxiliary component in a pipeline system. Its main function is to remove the excess gas in the pipeline, so as to improve the operation efficiency of the pipeline and equipment, and protect the pipeline from negative pressure damage.

[0003] When using a heat exchange unit, when the gas pressure inside the cavity is relatively large, the ball will be pressed down, the spring will deform, and the connecting rod will move downward. Then the exhaust pipe will be unblocked, and the gas in the pipeline will be discharged. When there is negative pressure in the pipeline, the spring will also deform to drive the ball away from the exhaust pipe, and then the gas will reach the inside of the pipeline through the exhaust pipe and the cavity, avoiding the influence of negative pressure on the pipeline. When the ball moves downward, it is easy to collide with the lower end of the cavity, which may cause damage to the ball, thus affecting the use effect of the automatic exhaust valve. Summary of the Utility Model

[0004] The utility model aims to solve the problem that when the ball moves downward, it is easy to collide with the lower end of the cavity, which may cause damage to the ball, thus affecting the use effect of the automatic exhaust valve. Therefore, the utility model provides an automatic exhaust valve for a heat exchange unit.

[0005] To achieve the above object, the utility model adopts the following technical scheme: an automatic exhaust valve for a heat exchange unit, including a cavity and a mounting component. One side of the cavity is provided with an exhaust pipe. A spring is arranged inside the exhaust pipe. One end of the spring is provided with a connecting rod. A ball is arranged on the side of the connecting rod away from the spring. A blocking device is arranged on the outer wall of the cavity by means of the mounting component. The blocking device includes a placement plate. One side of the placement plate is threadedly connected with a first bolt. One side of the first bolt is rotatably connected with a blocking plate. The size of the blocking plate is adapted to the size of the exhaust pipe. The cross section of the blocking plate is U-shaped. One side of the first bolt is fixedly connected with an operation block.

[0006] The effects achieved by the above components are as follows: When using the heat exchange unit, when the gas pressure inside the cavity is relatively high, the sphere will be pressed down, the spring will deform, and the connecting rod will move downward. Then the exhaust pipe will be unblocked, and the gas in the pipe will be discharged. When there is negative pressure in the pipe, the spring will also deform and drive the sphere away from the exhaust pipe, and then the gas will pass through the exhaust pipe and the cavity to reach the inside of the pipe, avoiding the negative pressure from affecting the pipe. When using the exhaust valve, the first bolt inside the placement plate can be rotated through the operation block, so that the first bolt drives the blocking plate to insert into the exhaust pipe. Then, the two arms of the blocking plate block the maximum displacement of the spring and the end of the connecting rod away from the sphere. By using the blocking device, the deformation distance of the spring and the moving distance of the connecting rod can be restricted. Then, when the sphere moves downward, it will not collide with the lower end of the cavity, thereby improving the service life of the sphere and further enhancing the use effect of the automatic exhaust valve.

[0007] Preferably, one side of the first bolt is fixedly connected with a bearing, and the outer ring of the bearing is fixedly connected with the blocking plate.

[0008] The effects achieved by the above components are as follows: By using the bearing, the friction between the bearing and the first bolt blocking plate is reduced, and the first bolt can move more easily.

[0009] Preferably, one side of the blocking plate is fixedly connected with a rubber ring, and the size of the rubber ring is adapted to the size of the blocking plate.

[0010] The effects achieved by the above components are as follows: By using the rubber ring, the sealing performance between the blocking plate and the exhaust pipe is improved, thereby enhancing the use effect of the blocking plate.

[0011] Preferably, a plurality of anti-slip blocks are fixedly connected to one side of the operation block, and the plurality of anti-slip blocks are arranged at equal intervals on one side of the operation block.

[0012] The effects achieved by the above components are as follows: By using the anti-slip blocks, the friction between the operator and the operation block is increased, thereby enhancing the use effect of the operation block.

[0013] Preferably, a limiting plate is fixedly connected to one side of the blocking plate, and one side of the limiting plate is slidably connected to the placement plate.

[0014] The effects achieved by the above components are as follows: By using the limiting plate, the moving track of the blocking plate is restricted, thereby enhancing the stability of the movement of the blocking plate.

[0015] Preferably, the installation component includes a square pipe. One side of the square pipe is fixedly connected to the cavity. A second bolt is threadedly inserted into the square pipe. An installation plate is threadedly inserted into the second bolt. One side of the installation plate is fixedly connected to the placement plate.

[0016] The effects achieved by the above components are as follows: When using the blocking device, the placement plate can be moved so that the mounting plate on one side of the placement plate is inserted into the square pipe. Then, the second bolt is rotated so that the second bolt passes through the square pipe and is fixed to the mounting plate. Then, the position of the placement plate is fixed. By using the mounting component, the position of the blocking device can be quickly fixed, thus facilitating the operator to use the blocking device.

[0017] Preferably, a gasket abuts against one side of the second bolt, and the side of the gasket away from the second bolt abuts against the square pipe.

[0018] The effects achieved by the above components are as follows: By using the gasket, the contact area between the second bolt and the square pipe is increased, thereby improving the fixing effect of the second bolt on the mounting plate.

[0019] Preferably, a connecting rope is fixedly connected to one side of the second bolt, and the side of the connecting rope away from the second bolt is fixedly connected to the square pipe.

[0020] The effects achieved by the above components are as follows: By using the connecting rope, the second bolt is connected to the square pipe to prevent the second bolt from being lost.

[0021] In summary, the beneficial effects of the present utility model are as follows:

[0022] By using the blocking device, the deformation distance of the spring and the moving distance of the connecting rod can be restricted. Then, when the sphere moves downward, it does not collide with the lower end of the cavity, thereby improving the service life of the sphere and further enhancing the use effect of the automatic exhaust valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 2 is of the present utility model Figure 1 sectional three-dimensional structural schematic diagram;

[0025] Figure 3 is a three-dimensional structural schematic diagram of the blocking device of the present utility model;

[0026] Figure 4 is of the present utility model Figure 3 enlarged view at A.

[0027] Legend: 1, cavity; 2, blocking device; 21, placement plate; 22, first bolt; 23, blocking plate; 24, operation block; 25, bearing; 26, rubber ring; 27, anti-slip block; 28, limiting plate; 3, mounting component; 31, square pipe; 32, second bolt; 33, mounting plate; 34, gasket; 35, connecting rope; 4, exhaust pipe; 5, spring; 6, connecting rod; 7, sphere. Detailed implementation mode

[0028] Referring to Figures 1-4 As shown in the figure, this embodiment discloses an automatic exhaust valve for a heat exchange unit, which includes a cavity 1 and a mounting assembly 3. A exhaust pipe 4 is provided on one side of the cavity 1. A spring 5 is provided inside the exhaust pipe 4. One end of the spring 5 is provided with a connecting rod 6. A sphere 7 is provided on the side of the connecting rod 6 away from the spring 5. A blocking device 2 is provided on the outer wall of the cavity 1 by means of the mounting assembly 3.

[0029] Referring to Figures 1-4 As shown in the figure, this embodiment discloses that the blocking device 2 includes a placement plate 21. A first bolt 22 is threadedly connected to one side of the placement plate 21. One side of the first bolt 22 is rotatably connected to a blocking plate 23. The size of the blocking plate 23 is adapted to the size of the exhaust pipe 4. The cross-section of the blocking plate 23 is U-shaped. One side of the first bolt 22 is fixedly connected to an operation block 24. When using the heat exchange unit, when the gas pressure inside the cavity 1 is relatively large, the sphere 7 will be pressed down, the spring 5 will deform, and the connecting rod 6 will move downward. Then the exhaust pipe 4 will be unblocked, and the gas in the pipeline will be discharged. When there is negative pressure in the pipeline, the spring 5 will also deform and drive the sphere 7 away from the exhaust pipe 4. Then the gas passes through the exhaust pipe 4 and the cavity 1 to reach the inside of the pipeline, avoiding the influence of negative pressure on the pipeline. When using the exhaust valve, the first bolt 22 inside the placement plate 21 can be rotated through the operation block 24, so that the first bolt 22 drives the blocking plate 23 to insert into the exhaust pipe 4. Then the two arms of the blocking plate 23 block the maximum displacement of the spring 5 and the end of the connecting rod 6 away from the sphere 7. By using the blocking device 2, the deformation distance of the spring 5 and the moving distance of the connecting rod 6 can be limited. Then when the sphere 7 moves downward, it does not collide with the lower end of the cavity 1, so as to improve the service life of the sphere 7 and further improve the use effect of the automatic exhaust valve.

[0030] Referring to Figures 1-4As shown, in this embodiment, one side of the first bolt 22 is fixedly connected to a bearing 25, and the outer ring of the bearing 25 is fixedly connected to a baffle plate 23. By using the bearing 25, the friction between the bearing 25 and the baffle plate 23 of the first bolt 22 is reduced, and the first bolt 22 can move more easily. One side of the baffle plate 23 is fixedly connected to a rubber ring 26, and the size of the rubber ring 26 is adapted to the size of the baffle plate 23. By using the rubber ring 26, the sealing performance between the baffle plate 23 and the exhaust pipe 4 is improved, thereby enhancing the usage effect of the baffle plate 23. One side of the operation block 24 is fixedly connected with a plurality of anti-slip blocks 27, and the plurality of anti-slip blocks 27 are arranged at equal intervals on one side of the operation block 24. By using the anti-slip blocks 27, the friction between the operator and the operation block 24 is increased, thereby enhancing the usage effect of the operation block 24. One side of the baffle plate 23 is fixedly connected to a limiting plate 28, and one side of the limiting plate 28 is slidably connected to the placement plate 21. By using the limiting plate 28, the movement track of the baffle plate 23 is restricted, thereby enhancing the stability of the movement of the baffle plate 23.

[0031] Referring to Figures 1-4 As shown, in this embodiment, the installation assembly 3 includes a square pipe 31. One side of the square pipe 31 is fixedly connected to the cavity 1. A second bolt 32 is threadedly inserted into the interior of the square pipe 31, and an installation plate 33 is threadedly inserted into the second bolt 32. One side of the installation plate 33 is fixedly connected to the placement plate 21. When using the blocking device 2, the placement plate 21 can be moved so that the installation plate 33 on one side of the placement plate 21 is inserted into the square pipe 31, and then the second bolt 32 is rotated so that the second bolt 32 passes through the square pipe 31 and is fixed to the installation plate 33, and then the position of the placement plate 21 is fixed. By using the installation assembly 3, the position of the blocking device 2 can be quickly fixed, thereby facilitating the operator to use the blocking device 2.

[0032] Referring to Figures 1-4 As shown, in this embodiment, one side of the second bolt 32 abuts against a gasket 34, and the side of the gasket 34 away from the second bolt 32 abuts against the square pipe 31. By using the gasket 34, the contact area between the second bolt 32 and the square pipe 31 is increased, thereby enhancing the fixing effect of the second bolt 32 on the installation plate 33. One side of the second bolt 32 is fixedly connected to a connecting rope 35, and the side of the connecting rope 35 away from the second bolt 32 is fixedly connected to the square pipe 31. By using the connecting rope 35, the second bolt 32 is connected to the square pipe 31 to prevent the second bolt 32 from being lost.

[0033] Working principle: When using the heat exchange unit, when the gas pressure inside the cavity 1 is relatively high, the sphere 7 will be pressed downwards, the spring 5 will deform, and the connecting rod 6 will move downwards. Then, the exhaust pipe 4 will be unblocked, and the gas in the pipeline will be discharged. When there is negative pressure in the pipeline, the spring 5 will also deform and drive the sphere 7 away from the exhaust pipe 4. Then, the gas passes through the exhaust pipe 4 and the cavity 1 to reach the inside of the pipeline, avoiding the influence of negative pressure on the pipeline. When using the exhaust valve, the first bolt 22 inside the placement plate 21 can be rotated through the operation block 24 with anti-slip blocks 27, so that the first bolt 22 drives the blocking plate 23 to insert into the exhaust pipe 4. At this time, the limiting plate 28 is used to limit the movement track of the blocking plate 23. Then, the two arms of the blocking plate 23 block the maximum displacement of the spring 5 and the end of the connecting rod 6 away from the sphere 7. By using the blocking device 2, the deformation distance of the spring 5 and the movement distance of the connecting rod 6 can be limited. Then, when the sphere 7 moves downwards, it does not collide with the lower end of the cavity 1, thereby improving the service life of the sphere 7 and further enhancing the use effect of the automatic exhaust valve.

[0034] When using the blocking device 2, the placement plate 21 can be moved so that the mounting plate 33 on one side of the placement plate 21 is inserted into the square pipe 31. Then, the second bolt 32 with the connecting rope 35 is rotated so that the second bolt 32 passes through the square pipe 31 and is fixed to the mounting plate 33. Then, the position of the placement plate 21 is fixed. By using the mounting component 3, the position of the blocking device 2 can be quickly fixed, thus facilitating the operator to use the blocking device 2.

Claims

1. An automatic exhaust valve for a heat exchange unit, comprising a chamber (1) and a mounting assembly (3), characterized in that: An exhaust pipe (4) is provided on one side of the cavity (1), a spring (5) is provided inside the exhaust pipe (4), a connecting rod (6) is provided at one end of the spring (5), a ball (7) is provided on the side of the connecting rod (6) away from the spring (5), an outer wall of the cavity (1) is provided with a blocking device (2) by means of a mounting assembly (3), the blocking device (2) comprises a placement plate (21), a first bolt (22) is threadedly connected to one side of the placement plate (21), a blocking plate (23) is rotatably connected to one side of the first bolt (22), the size of the blocking plate (23) is adapted to the size of the exhaust pipe (4), the cross section of the blocking plate (23) is U-shaped, and an operating block (24) is fixedly connected to one side of the first bolt (22).

2. The automatic exhaust valve for a heat exchange unit according to claim 1, characterized in that: One side of the first bolt (22) is fixedly connected to the bearing (25), and the outer ring of the bearing (25) is fixedly connected to the blocking plate (23).

3. The automatic exhaust valve for a heat exchange unit according to claim 2, characterized in that: A rubber ring (26) is fixedly connected to one side of the blocking plate (23), and the size of the rubber ring (26) is adapted to the size of the blocking plate (23).

4. The automatic exhaust valve for a heat exchange unit according to claim 3, characterized in that: One side of the operating block (24) is fixedly connected with a plurality of anti-sliding blocks (27), and the plurality of anti-sliding blocks (27) are arranged at equal distances on one side of the operating block (24).

5. The automatic exhaust valve for a heat exchange unit according to claim 4, characterized in that: One side of the blocking plate (23) is fixedly connected to a limiting plate (28), and one side of the limiting plate (28) is slidably connected to the placement plate (21).

6. The automatic exhaust valve for a heat exchange unit according to claim 5, characterized in that: The mounting assembly (3) comprises a square tube (31), one side of which is fixedly connected to the cavity (1), a second bolt (32) is inserted into the internal thread of the square tube (31), a mounting plate (33) is inserted into the internal thread of the second bolt (32), and one side of the mounting plate (33) is fixedly connected to the placement plate (21).

7. The automatic exhaust valve for a heat exchange unit according to claim 6, characterized in that: A gasket (34) is in contact with one side of the second bolt (32), and a side of the gasket (34) away from the second bolt (32) is in contact with the square tube (31).

8. The automatic exhaust valve for a heat exchange unit according to claim 7, characterized in that: A connecting rope (35) is fixedly connected to one side of the second bolt (32), and a side of the connecting rope (35) away from the second bolt (32) is fixedly connected to the square tube (31).

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