Improved minimum pressure valve under double working conditions

Abstract

The utility model belongs to the technical field of pressure valves, and particularly relates to an improved minimum pressure valve under double working conditions, which comprises a valve body, a cavity is arranged in the valve body, a water inlet is arranged at one end of the cavity, a water outlet is arranged at the other end of the cavity, a double-working-condition adjusting device is movably mounted in the valve body, and the double-working-condition adjusting device is movably mounted in the valve body. A first valve pipe is fixedly connected to the outer side of the valve body, a fixing disc is fixedly mounted in the first valve pipe, a second tight sealing block is arranged in the fixing disc, a bolt is fixedly mounted on the upper surface of the fixing disc, a second valve pipe is arranged on the upper surface of the first valve pipe, and a mounting base is arranged in the second valve pipe. When the pressure valve is damaged, a worker rotates the crank to drive the tensioner, the tensioner drives the threaded rod, the threaded rod drives the stop column, the stop column drives the flow guide plate, and the flow guide plate drives the water stop block, so that manual operation is achieved, the operator conducts controllable demand operation on the valve, and the influence of valve damage on the working process is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure valves, in particular to an improved minimum pressure valve under dual working conditions. Background Art

[0002] Dual-condition operation generally refers to the operation of equipment such as compressors under two different working conditions. In some industrial scenarios, such as air compressor systems, different working conditions may exist. On the one hand, under normal working conditions, stable pressure output is required to meet the use of gas-consuming equipment, and the system pressure must be kept within a reasonable range to prevent damage to the equipment caused by excessively high or low pressure. On the other hand, under some special working conditions, such as sudden changes in gas consumption peaks or troughs at the gas-consuming end, the system pressure will fluctuate greatly.

[0003] Under dual-operating conditions, traditional minimum pressure valves have some shortcomings and the existing structural design has limitations. When the dual-operating conditions are frequently switched, the stability of the device is affected. Under the high-frequency operating condition conversion of the existing device, the valve is easily damaged and cannot operate normally after being damaged, thus affecting the working process. The operator needs to manually adjust the valve to adapt to the new pressure requirements.

[0004] To this end, the utility model provides an improved minimum pressure valve under dual working conditions. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention is an improved minimum pressure valve under dual working conditions, comprising a valve body, a chamber is provided inside the valve body, a water inlet is provided at one end of the chamber, and a water outlet is provided at the other end of the chamber; a dual working condition regulating device is movably installed inside the valve body, a valve pipe 1 is fixedly connected to the outside of the valve body, and a fixed disc is fixedly installed inside the valve pipe 1;

[0007] A tight sealing block 2 is provided inside the fixed disc, a bolt is fixedly installed on the upper surface of the fixed disc, a valve tube 2 is provided on the upper surface of the valve tube 1, a mounting base is provided inside the valve tube 2, a guide block 1 is installed on the upper surface of the mounting base, a guide block 2 is installed on the upper surface of the guide block 1, a fixed connecting column is provided inside the guide block 2, a tensioner is provided on the upper surface of the valve tube 2, and a crank is rotatably connected to one side of the tensioner.

[0008] Preferably, the dual-mode adjustment device includes a threaded rod, the bottom end of the threaded rod is fixedly connected to a large sphere, a blocking column is provided on the outside of the large sphere, a mounting block is provided inside the blocking column, a small sphere is provided inside the mounting block, a tight sealing block (53) is installed on the upper surface of the blocking column, two groups of guide plates are sleeved on the outside of the blocking column, and a water retaining block is installed on one side of the two groups of guide plates.

[0009] Preferably, the sealing block is located outside the threaded rod, the interior of the mounting block is hollow, and the small sphere arranged inside the mounting block is in rotational contact with the large sphere.

[0010] Preferably, one end of the valve tube 1 and the valve tube 2 is respectively provided with a screw eye and a nut, and the nut passes through the screw eye respectively provided at one end of the valve tube 1 and the valve tube 2.

[0011] Preferably, the fixed disc is fixedly connected to the inside of the valve tube 1 through a guide block.

[0012] Preferably, a bolt is fixedly mounted on the upper surface of the fixed disc, and the other end of the bolt is fixedly connected to a mounting base.

[0013] Preferably, the guide plate is in the shape of an inclined surface, and the size of the water retaining block is consistent with that of the chamber.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model describes an improved minimum pressure valve under dual working conditions. When the pressure valve is damaged, the staff drives the tensioner by turning the crank, the tensioner drives the threaded rod, the threaded rod drives the baffle column, the baffle column drives the guide plate, and the guide plate drives the water block, thereby realizing manual operation. The operator performs controllable operation on the valve on demand, reducing the impact of valve damage on the work process.

[0016] 2. The improved minimum pressure valve under dual working conditions described in the utility model can adjust the pressure on both sides through components such as a large sphere, a small sphere, a baffle, a guide plate, and a water baffle, thereby effectively improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the overall structure of the first embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of a dual-working-condition regulating device according to the first embodiment of the present utility model;

[0021] Figure 4 This is a position relationship diagram of the dual-mode regulating device in the valve body according to the first embodiment of the present utility model;

[0022] Figure 5 This is a partial cross-sectional view of the dual-mode regulating device of Example 1 of the present utility model;

[0023] In the figure: 1. Valve body; 2. Water inlet; 3. Water outlet; 4. Chamber; 5. Dual-mode adjustment device; 51. Stop column; 52. Threaded rod; 53. Tight sealing block 1; 55. Large sphere; 56. Mounting block; 57. Small sphere; 58. Guide plate; 59. Water retaining block; 6. Valve pipe 1; 7. Valve pipe 2; 8. Nut; 9. Fixed disc; 10. Tight sealing block 2; 11. Bolt; 12. Mounting base; 13. Guide block 1; 14. Guide block 2; 15. Fixed connecting column; 16. Tensioner; 17. Crank handle. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Example 1

[0026] like Figures 1 to 5 As shown, an improved minimum pressure valve under dual working conditions according to an embodiment of the present invention, a chamber 4 is provided inside the valve body 1, a water inlet 2 is provided at one end of the chamber 4, a water outlet 3 is provided at the other end of the chamber 4, a dual working condition regulating device 5 is movably installed inside the valve body 1, and the dual working condition regulating device 5 includes a threaded rod 52, a large sphere 55 is fixedly connected to the bottom end of the threaded rod 52, a retaining column 51 is provided on the outside of the large sphere 55, and a mounting block 56 is provided inside the retaining column 51. A small sphere 57 is provided inside the mounting block 56. A tight sealing block 53 is installed on the upper surface of the retaining column 51. Two sets of guide plates 58 are sleeved on the outside of the retaining column 51. A water retaining block 59 is installed on one side of the two sets of guide plates 58. The tight sealing block 53 is located on the outside of the threaded rod 52. The interior of the mounting block 56 is hollow. The small sphere 57 provided inside the mounting block 56 is in rotational contact with the large sphere 55. The outside of the valve body 1 is fixedly connected to the valve pipe 6, and the interior of the valve pipe 6 is fixedly installed with a fixed disc 9.

[0027] A tight sealing block 2 10 is provided inside the fixed disc 9, a bolt 11 is fixedly installed on the upper surface of the fixed disc 9, a valve tube 2 7 is provided on the upper surface of the valve tube 1 6, a mounting base 12 is provided inside the valve tube 2 7, a guide block 13 is installed on the upper surface of the mounting base 12, a guide block 2 14 is installed on the upper surface of the guide block 13, a fixed connecting column 15 is provided inside the guide block 2 14, a stretcher 16 is provided on the upper surface of the valve tube 2 7, and a crank 17 is rotatably connected to one side of the stretcher 16.

[0028] Specifically, inside the valve body 1, the water flow is in a dual working condition. In the first condition, the pressure at the water outlet 3 and the water inlet 2 is in a balanced state, and the water flows smoothly. In the other condition, the pressure at the water inlet 2 is too high, and the water flow causes the guide plate 58 to be thrust. The guide plate 58 is sleeved on the outside of the blocking column 51. A mounting block 56 is installed inside the blocking column 51. The interior of the mounting block 56 is hollow. A small sphere 57 is installed inside the mounting block 56. The surface of the small sphere 57 is in sliding contact with the surface of the large sphere 55. The large sphere 55 is arranged inside the blocking column 51. The large sphere 55 is located in the middle of the mounting block 56. The blocking column 51 is connected to the large sphere 55 through the small sphere 57 and the mounting block 56. The surface rotates, so that the guide plate 58 is pushed when it is subjected to water pressure. A tight sealing block 53 is installed on the upper surface of the retaining column 51. The tight sealing block 53 isolates the large sphere 55 and the small sphere 57 from the water, so that the guide plate 58 rotates in the chamber 4. A water retaining block 59 is installed on one side of the guide plate 58. When the water retaining block 59 installed on one side of the guide plate 58 rotates to one end of the water inlet 2, the water retaining block 59 prevents water from entering, thereby adjusting the pressure on both sides of the water inlet 2 and the water outlet 3. After the pressure is balanced, the guide plate 58 drives the water retaining block 59 to separate from one end of the water inlet 2, thereby realizing pressure valve adjustment under dual working conditions, and the pressure valve operates for a long time. When the line is damaged, the working process cannot be interrupted, so the staff needs to manually adjust the valve to adapt to the new pressure requirements. The operator turns the crank 17. The operator turns the crank 17, and the crank 17 drives the tensioner 16 installed on one side. The tensioner 16 is an existing device. You can refer to the internal thread type tensioner 16. The working principle of the tensioner 16 belongs to the existing technology and will not be described in detail in this case. The internal thread of the tensioner 16 is connected to the threaded rod 52. The tensioner 16 drives the threaded rod 52 to move up and down. The interior of the valve pipe 7 is equipped with a mounting base 12, which is fixed to the upper surface of the fixed disc 9 by a bolt 11. Fixed, a guide block 13 is fixedly installed on the upper surface of the mounting base 12, and a guide block 2 14 is fixed above the guide block 13 by a fixed connecting column 15, so that it is more convenient for the stretcher 16 to drive the threaded rod 52 to perform an upward reciprocating motion. The fixed disc 9 is fixedly installed inside the valve pipe 1 6 through the fixed block, and a tight sealing block 2 10 is installed inside the valve pipe 1 6. The tight sealing block 2 10 isolates the water flow, thereby effectively improving the sealing performance and reducing the problem of internal leakage. The operator manually operates to adapt to the pressure requirements, thereby effectively reducing the situation where the valve cannot operate normally due to damage, and effectively reducing the situation that affects the work process.

[0029] like Figures 1 to 2 As shown, one end of valve tube 1 6 and valve tube 2 7 is respectively provided with a screw eye and a nut 8, and the nut 8 passes through the screw eye respectively provided at one end of valve tube 1 6 and valve tube 2 7.

[0030] Specifically, valve pipe 1 6 and valve pipe 2 7 are two parts respectively. A dual-working condition adjustment device 5 is installed inside valve pipe 1 6, and a guide mechanism is installed inside valve pipe 2 7. They are assembled through screw eyes and nuts 8 opened at one end of valve pipe 1 6 and valve pipe 2 7, respectively, so that the structure is compact and the opening and closing performance is good.

[0031] like Figure 2 As shown, the fixed disc 9 is fixedly connected to the inside of the valve tube 6 through a guide block.

[0032] Specifically, the fixed disc 9 is fixedly installed inside the valve pipe 1 6 through a fixing block. A tight sealing block 2 10 is installed inside the valve pipe 1 6. The tight sealing block 2 10 isolates the water flow, thereby effectively improving the sealing performance and reducing the problem of internal leakage.

[0033] like Figure 2 As shown, the guide plate 58 is in an inclined shape, and the size of the water retaining block 59 is consistent with that of the chamber 4.

[0034] Specifically, the guide plate 58 is in the shape of an inclined surface, which is conducive to the push of over-pressure water flow. The guide plate 58 rotates in the chamber 4. A water block 59 is installed on one side of the guide plate 58. When the water block 59 installed on one side of the guide plate 58 rotates to one end of the water inlet 2, the water block 59 prevents water from entering, thereby adjusting the pressure on both sides of the water inlet 2 and the water outlet 3.

[0035] Example 2

[0036] like Figures 4 and 5 As shown, in comparison with Example 1, another implementation of the present invention is as follows: a bolt 11 is fixedly mounted on the upper surface of the fixed disc 9 , and the other end of the bolt 11 is fixedly connected to a mounting base 12 .

[0037] Specifically, a mounting base 12 is installed inside the valve tube 2 7, and the mounting base 12 is fixed by a bolt 11 fixed on the upper surface of the fixed disc 9. A guide block 13 is fixed on the upper surface of the mounting base 12, and a guide block 2 14 is fixed above the guide block 13 by a fixed connecting column 15, so that the stretcher 16 drives the threaded rod 52 to perform an upward reciprocating motion more conveniently.

[0038] Working principle: Inside the valve body 1, the water flow is in a dual working condition. In the first case, the pressure at the water outlet 3 and the water inlet 2 is in a balanced state, and the water flows smoothly. In the other case, the pressure at the water inlet 2 is too high, and the water flow causes the guide plate 58 to be thrust. The guide plate 58 is sleeved on the outside of the retaining column 51. A mounting block 56 is installed inside the retaining column 51. The interior of the mounting block 56 is hollow. A small sphere 57 is installed inside the mounting block 56. The surface of the small sphere 57 is in sliding contact with the surface of the large sphere 55. The large sphere 55 is arranged inside the retaining column 51. The large sphere 55 is located in the middle of the mounting block 56. The retaining column 51 is connected to the large sphere 55 through the small sphere 57 and the mounting block 56. The surface rotates, so that the guide plate 58 is pushed when it is subjected to water pressure. A tight sealing block 53 is installed on the upper surface of the retaining column 51. The tight sealing block 53 isolates the large sphere 55 and the small sphere 57 from the water, so that the guide plate 58 rotates in the chamber 4. A water retaining block 59 is installed on one side of the guide plate 58. When the water retaining block 59 installed on one side of the guide plate 58 rotates to one end of the water inlet 2, the water retaining block 59 prevents water from entering, thereby adjusting the pressure on both sides of the water inlet 2 and the water outlet 3. After the pressure is balanced, the guide plate 58 drives the water retaining block 59 to separate from one end of the water inlet 2, thereby realizing pressure valve adjustment under dual working conditions, and the pressure valve operates for a long time. When the line is damaged, the working process cannot be interrupted, so the staff needs to manually adjust the valve to adapt to the new pressure requirements. The operator turns the crank 17. The operator turns the crank 17, and the crank 17 drives the tensioner 16 installed on one side. The tensioner 16 is an existing device. You can refer to the internal thread type tensioner 16. The working principle of the tensioner 16 belongs to the existing technology and will not be described in detail in this case. The internal thread of the tensioner 16 is connected to the threaded rod 52. The tensioner 16 drives the threaded rod 52 to move up and down. The interior of the valve pipe 7 is equipped with a mounting base 12, which is fixed to the upper surface of the fixed disc 9 by a bolt 11. Fixed, a guide block 13 is fixedly installed on the upper surface of the mounting base 12, and a guide block 2 14 is fixed above the guide block 13 by a fixed connecting column 15, so that it is more convenient for the stretcher 16 to drive the threaded rod 52 to perform an upward reciprocating motion. The fixed disc 9 is fixedly installed inside the valve pipe 1 6 through the fixed block, and a tight sealing block 2 10 is installed inside the valve pipe 1 6. The tight sealing block 2 10 isolates the water flow, thereby effectively improving the sealing performance and reducing the problem of internal leakage. The operator manually operates to adapt to the pressure requirements, thereby effectively reducing the situation where the valve cannot operate normally due to damage, and effectively reducing the situation that affects the work process.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An improved minimum pressure valve under dual working conditions, characterized by: The invention comprises a valve body (1), wherein a chamber (4) is provided inside the valve body (1), a water inlet (2) is provided at one end of the chamber (4), and a water outlet (3) is provided at the other end of the chamber (4); a dual-operating-mode regulating device (5) is movably installed inside the valve body (1), a valve pipe (6) is fixedly connected to the outside of the valve body (1), and a fixed disc (9) is fixedly installed inside the valve pipe (6); The interior of the fixed disc (9) is provided with a tight sealing block 2 (10), the upper surface of the fixed disc (9) is fixedly mounted with a bolt (11), the upper surface of the valve tube 1 (6) is provided with a valve tube 2 (7), the interior of the valve tube 2 (7) is provided with a mounting base (12), the upper surface of the mounting base (12) is provided with a guide block 1 (13), the upper surface of the guide block 1 (13) is provided with a guide block 2 (14), the interior of the guide block 2 (14) is provided with a fixed connecting column (15), the upper surface of the valve tube 2 (7) is provided with a stretcher (16), one side of the stretcher (16) is rotatably connected to a crank (17); The dual-mode regulating device (5) comprises a threaded rod (52), the bottom end of the threaded rod (52) is fixedly connected to a large sphere (55), a blocking column (51) is provided on the outside of the large sphere (55), a mounting block (56) is provided inside the blocking column (51), a small sphere (57) is provided inside the mounting block (56), a tight sealing block (53) is installed on the upper surface of the blocking column (51), two groups of guide plates (58) are sleeved on the outside of the blocking column (51), and a water retaining block (59) is installed on one side of the two groups of guide plates (58).

2. The improved minimum pressure valve under dual working conditions according to claim 1, characterized in that: The first tight sealing block (53) is located outside the threaded rod (52), the interior of the installation block (56) is hollow, and the small sphere (57) arranged inside the installation block (56) is in rotational contact with the large sphere (55).

3. The improved minimum pressure valve under dual working conditions according to claim 1, characterized in that: One end of the valve tube 1 (6) and the valve tube 2 (7) is respectively provided with a screw eye and a nut (8), and the nut (8) passes through the screw eye respectively provided at one end of the valve tube 1 (6) and the valve tube 2 (7).

4. The improved minimum pressure valve under dual working conditions according to claim 1, characterized in that: The fixed disc (9) is fixedly connected to the inside of the valve pipe (6) via a guide block.

5. The improved minimum pressure valve under dual working conditions according to claim 4, characterized in that: A bolt (11) is fixedly mounted on the upper surface of the fixed disc (9), and the other end of the bolt (11) is fixedly connected to a mounting base (12).

6. The improved minimum pressure valve under dual working conditions according to claim 1, characterized in that: The guide plate (58) is in the shape of an inclined plane, and the size of the water retaining block (59) is consistent with that of the chamber (4).

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