Flange type pressure reducing valve

Abstract

The utility model relates to the technical field of pressure reducing valves, and discloses a flange type pressure reducing valve which comprises a valve body, an elastic assembly is arranged at the bottom in the valve body, the top of the elastic assembly is connected with a valve rod, the valve rod penetrates through the valve body, the top of the valve rod is fixedly connected with an O-shaped ring, and the O-shaped ring is in sliding connection with the inner wall of the valve body. A valve cover is fixedly connected to the top of the valve body, the bottom of the valve cover penetrates through the valve body, a diaphragm is fixedly connected to the bottom of the valve cover, a gland is fixedly connected to the top of the diaphragm, a second spring is fixedly connected to the top of the gland, sliding grooves are formed in the two sides in the valve cover, and a pressing plate is arranged at the top of the second spring. According to the water-saving valve, the filter plate, the pressing block, the dismounting block, the inserting groove, the open groove, the limiting block, the flange and the pipeline work in a matched mode, water flowing through the valve body can be filtered through the filter plate, and the filter plate can be dismounted conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure reducing valves, in particular to a flange type pressure reducing valve. Background Art

[0002] The flange pressure reducing valve is different from the general threaded pressure reducing valve. Its connection method is flange. It uses the opening of the opening and closing parts in the control valve body to adjust the flow of the medium and reduce the pressure of the medium. At the same time, it uses the effect of the pressure after the valve to adjust the opening of the opening and closing parts to keep the pressure after the valve within a certain range. When the inlet pressure is constantly changing, the outlet pressure is kept within the set range to protect the living and production equipment behind it.

[0003] Currently, the most commonly used pressure reducing valve is the diaphragm pressure reducing valve. When the top bolt of the pressure reducing valve is tightened against the valve body, the bolt squeezes the spring inside the valve, applying force to the spring. The spring then transmits the force to the diaphragm at the end of the spring. At this time, the diaphragm is subjected to a bidirectional force from the spring and the water pressure behind the valve.

[0004] Because the pressure reducing valve is equipped with an elastic member to adjust pressure changes through spring force, when adjusting the elastic force of the elastic member, the twisting bolt will damage the elastic member, resulting in insufficient spring force supply and shortening the service life of the pressure reducing valve. To address the above problems, a flange-type pressure reducing valve is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a flange type pressure reducing valve, which solves the problem in the background technology that when adjusting the elastic force of the elastic member, the twisted bolt will damage the elastic member, resulting in damage to the elastic member, insufficient elastic force supply, and shortening the service life of the pressure reducing valve.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flange type pressure reducing valve, comprising a valve body, an elastic component is provided at the bottom of the valve body, a valve stem is connected to the top of the elastic component, the valve stem passes through the valve body, an O-ring is fixedly connected to the top of the valve stem, and the O-ring is slidably connected to the inner wall of the valve body, a valve cover is fixedly connected to the top of the valve body, the valve cover, and the bottom of the valve cover passes through the valve body, a diaphragm is fixedly connected to the bottom of the valve cover, a pressure cover is fixedly connected to the top of the pressure cover, a second spring is fixedly connected to the top of the valve cover, and both sides of the valve cover are fixedly connected. Both are provided with a slide groove, a pressure plate is provided on the top of the second spring, a threaded rod passes through and is threadedly connected to the top of the valve cover, a tube sleeve is fixedly connected to the top of the pressure cover, a third spring is fixedly connected to the inside of the tube sleeve, a second telescopic column is fixedly connected to the top of the third spring, pipes are fixedly connected on both sides of the valve body, a flange is fixedly connected to the outside of the end of the pipe, a filter plate is provided at the outer end of the pipe, tough spring sheets are fixedly connected on both sides of the filter plate, a pressing block is fixedly connected to the outside of the tough spring sheet, and disassembly components are provided on both sides of the flange.

[0007] By adopting the above technical solution, the threaded rod can be rotated to drive the pressure plate to squeeze the second spring and the second telescopic column, thereby adjusting the elasticity of the second spring, and the compression can prevent the second spring from twisting and causing damage to the elastic part.

[0008] As a further description of the above technical solution: the elastic component includes a groove column, the bottom of the groove column is fixedly connected to the inner wall of the valve body, a first spring is fixedly connected inside the groove column, the top of the first spring is fixedly connected to a first telescopic column, the top of the first telescopic column is fixedly connected to a valve flap, and the valve flap is connected to the bottom of the valve stem.

[0009] By adopting the above technical solution, when the elastic component facilitates the fluid to flow through the valve body, the valve disc in the valve body is subjected to excessive pressure, which will press the valve disc downward and open the valve disc, thereby opening the valve body, and the fluid can be transported.

[0010] As a further description of the above technical solution: the disassembly assembly includes a disassembly block, both of which are arranged in the flange, a slot is provided at one outward end of the disassembly block, a slot is provided on the outside of the disassembly block, the slot is communicated with the slot, two limit blocks are fixedly connected in the slot, and the limit blocks are arranged on both sides of the slot.

[0011] By adopting the above technical solution, the tough spring sheets on both sides of the filter plate can be conveniently limited by disassembling the assembly, thereby facilitating the disassembly of the filter plate.

[0012] As a further description of the above technical solution: both sides of the pressure plate are arranged in the sliding groove, and the outer part of the pressure plate is slidably connected to the inner wall of the sliding groove.

[0013] By adopting the above technical solution, sliders are provided on both sides of the pressing plate, and the pressing plate slides in the sliding groove through the sliders.

[0014] As a further description of the above technical solution: the bottom of the threaded rod is rotatably connected to the pressure plate.

[0015] By adopting the above technical solution, the pressure plate can be driven to descend when the threaded rod rotates.

[0016] As a further description of the above technical solution: a knob is fixedly connected to the top of the threaded rod, and the knob is arranged on the outside of the valve cover.

[0017] By adopting the above technical solution, the threaded rod can be driven to rotate by the knob.

[0018] As a further description of the above technical solution: the second telescopic column is arranged at the bottom of the pressure plate, and the second telescopic column is arranged in the second spring.

[0019] By adopting the above technical solution, the second telescopic column and the sleeve are both arranged inside the second spring.

[0020] As a further description of the above technical solution: the diaphragm is arranged above the O-ring.

[0021] By adopting the above technical solution, the valve stem can easily push the diaphragm and the gland upwards.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. The utility model provides a flange-type pressure reducing valve, in which a valve cover, a slide groove, a pressure plate, a threaded rod, a knob, a second spring, a sleeve, a third spring, a pressure cover and a valve disc cooperate with each other. By rotating the threaded rod, the pressure plate can be driven to squeeze the second spring and the second telescopic column, thereby adjusting the elasticity of the second spring. In combination with the telescopic second telescopic column, the elastic effect can be improved, and compression can prevent the second spring from being twisted and causing damage to the elastic part.

[0024] 2. The utility model provides a flange-type pressure reducing valve, which works in conjunction with a filter plate, a tough spring piece, a pressing block, a disassembly block, a slot, a groove, a limit block, a flange and a pipeline. The filter plate can filter the water flowing through the valve body, and the disassembly component can be used to conveniently limit the tough spring pieces on both sides of the filter plate, thereby facilitating the disassembly of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2This is a cross-sectional view of the overall structure of the utility model;

[0027] Figure 3 This is a cross-sectional view of the valve cover of the present utility model;

[0028] Figure 4 This is a schematic diagram of the disassembly component structure of the present utility model.

[0029] In the figure: 1. Valve body; 2. Slot column; 3. First spring; 4. First telescopic column; 5. Valve disc; 6. Valve stem; 7. O-ring; 8. Diaphragm; 9. Gland; 10. Second spring; 11. Valve cover; 12. Slide; 13. Pressure plate; 14. Threaded rod; 15. Knob; 16. Cylinder sleeve; 17. Third spring; 18. Second telescopic column; 19. Pipeline; 20. Flange; 21. Filter plate; 22. Tough spring; 23. Press block; 24. Disassembly block; 25. Slot; 26. Slot; 27. Limit block. DETAILED DESCRIPTION

[0030] The following will refer to the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0032] Reference Figure 1-4The utility model is a flange type pressure reducing valve, comprising a valve body 1, an elastic component is provided at the bottom of the valve body 1, a valve stem 6 is connected to the top of the elastic component, the valve stem 6 plays a transmission role, the valve stem 6 passes through the valve body 1, an O-ring 7 is fixedly connected to the top of the valve stem 6, and the O-ring 7 is slidably connected to the inner wall of the valve body 1, a valve cover 11 is fixedly connected to the top of the valve body 1, the valve cover 11 can play a protective effect, the valve cover 11, and the bottom of the valve cover 11 passes through the valve body 1, a diaphragm 8 is fixedly connected to the bottom of the valve cover 11, and a pressure cover 9 is fixedly connected to the top of the diaphragm 8, and the pressure cover 9 is used to press the second elastic member. The valve cover 11 is fixed with a spring 10, and the top of the pressure cover 9 is fixedly connected with a second spring 10. Slide grooves 12 are provided on both sides of the valve cover 11. The slide grooves 12 have a limiting effect on the pressure plate 13. A pressure plate 13 is provided on the top of the second spring 10. The length of the second spring 10 can be adjusted by pressing the pressure plate 13. A threaded rod 14 is passed through and threadedly connected to the top of the valve cover 11. The threaded rod 14 can drive the pressure plate 13 to rise and fall. The top of the pressure cover 9 is fixedly connected with a cylinder sleeve 16, and the cylinder sleeve 16 is fixedly connected with a third spring 17. The expansion and contraction of the third spring 17 can drive the third spring 10 to rise and fall. The second telescopic column 18 is telescopic in the sleeve 16, and cooperates with the second spring 10 to improve the elastic effect. The top of the third spring 17 is fixedly connected to the second telescopic column 18. Both sides of the valve body 1 are fixedly connected to the pipe 19, which plays a role in conveying. The end of the pipe 19 is fixedly connected to the outside with a flange 20. The outer end of the pipe 19 is provided with a filter plate 21, which can filter impurities. Both sides of the filter plate 21 are fixedly connected with a tough spring piece 22, which is hook-shaped. The outside of the tough spring piece 22 is fixedly connected with a pressing block 23. The pressing block 23 can cause the tough spring piece 22 to be deformed. Disassembly components are provided on both sides of the flange 20. Grooves are opened on both sides of the flange 20, and the disassembly components are arranged in the grooves. Both sides of the pressure plate 13 are arranged in the slide groove 12, and the outside of the pressure plate 13 is slidingly connected to the inner wall of the slide groove 12. The bottom of the threaded rod 14 is rotatably connected to the pressure plate 13. The top of the threaded rod 14 is fixedly connected with a knob 15. The knob 15 is set on the outside of the valve cover 11, and the threaded rod 14 can be driven to rotate by the knob 15. The second telescopic column 18 is set at the bottom of the pressure plate 13, and the second telescopic column 18 is set in the second spring 10. The diaphragm 8 is set above the O-ring 7.

[0033] Reference Figure 2 The elastic component includes a groove column 2, the bottom of the groove column 2 is fixedly connected to the inner wall of the valve body 1, a first spring 3 is fixedly connected to the groove column 2, the top of the first spring 3 is fixedly connected to the first telescopic column 4, the top of the first telescopic column 4 is fixedly connected to the valve disc 5, and the valve disc 5 is connected to the bottom of the valve stem 6. The elastic component can facilitate the flow of fluid through the valve body 1. When the valve disc in the valve body 1 is subjected to excessive pressure, the valve disc 5 will be pressed down and the valve disc 5 will be pressed open, thereby opening the valve body 1, and the fluid can be transported.

[0034] Reference Figure 4The disassembly assembly includes a disassembly block 24. Both disassembly blocks 24 are arranged in the flange 20. A slot 25 is opened at one end of the disassembly block 24 to the outside. A slot 26 is opened on the outside of the disassembly block 24. The slot 26 is communicated with the slot 25. Two limit blocks 27 are fixedly connected in the slot 25, and the limit blocks 27 are arranged on both sides of the slot 26. The disassembly assembly can be used to conveniently limit the tough spring pieces 22 on both sides of the filter plate 21, thereby facilitating the disassembly of the filter plate 21.

[0035] Working principle: When the fluid flows through the valve body 1, the valve disc 5 in the valve body 1 is subjected to excessive pressure, which will press the valve disc 5 downward and drive the first telescopic column 4 to squeeze the first spring 3 to contract, thereby pressing the valve disc 5 open, thereby opening the valve body 1, and the fluid can be transported. However, when the pressure in the valve body 1 is too high and needs to be reduced, the pressure will be squeezed toward the valve cover 11 along with the valve stem 6, thereby causing the valve stem 6 to push the diaphragm 8 and the pressure cover 9 upward, and the pressure cover 9 is subjected to the action of the second spring 10 to generate an obstructive elastic force, thereby offsetting the pressure to achieve the effect of reducing pressure, and in conjunction with the second telescopic column 18, it can squeeze the third spring 17 in the cylinder sleeve 16, so that the elastic effect is better, and the length of the second spring 10 is required. When adjusting the degree and elastic force, the knob 15 is turned to drive the threaded rod 14 to rotate, and the threaded rod 14 drives the pressure plate 13 to slide downward along the slide grooves 12 on both sides, squeezing the second spring 10 and the second telescopic column 18, so as to adjust the length of the second spring 10, and press the second spring 10 downward through the pressure plate 13, thereby avoiding the situation that the fixed second spring 10 is easily stuck by the rotation when the adjusting bolt is rotated due to the fixed position of the second spring 10. When the filter plate 21 needs to be disassembled, the pressing block 23 is squeezed by hand to contract the tough spring piece 22, so that the end of the tough spring piece 22 is free from the restriction of the limit block 27, and the filter plate 21 can be disassembled.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange type pressure reducing valve, comprising a valve body (1), characterized in that: The bottom of the valve body (1) is provided with an elastic component, the top of the elastic component is connected to a valve stem (6), the valve stem (6) passes through the valve body (1), the top of the valve stem (6) is fixedly connected to an O-ring (7), and the O-ring (7) is slidably connected to the inner wall of the valve body (1), the top of the valve body (1) is fixedly connected to a valve cover (11), the valve cover (11), and the bottom of the valve cover (11) passes through the valve body (1), the bottom of the valve cover (11) is fixedly connected to a diaphragm (8), the top of the diaphragm (8) is fixedly connected to a pressure cover (9), the top of the pressure cover (9) is fixedly connected to a second spring (10), both sides of the valve cover (11) are provided with a slide groove (12), and the top of the second spring (10) is provided with a pressure plate (13), a threaded rod (14) passes through and is threadedly connected to the top of the valve cover (11), a sleeve (16) is fixedly connected to the top of the pressure cover (9), a third spring (17) is fixedly connected inside the sleeve (16), a second telescopic column (18) is fixedly connected to the top of the third spring (17), pipes (19) are fixedly connected to both sides of the valve body (1), a flange (20) is fixedly connected to the outside of the end of the pipe (19), a filter plate (21) is provided at the outer end of the pipe (19), a tough spring sheet (22) is fixedly connected to both sides of the filter plate (21), a pressing block (23) is fixedly connected to the outside of the tough spring sheet (22), and a disassembly component is provided inside both sides of the flange (20).

2. A flange type pressure reducing valve according to claim 1, characterized in that: The elastic component comprises a slot column (2), the bottom of the slot column (2) is fixedly connected to the inner wall of the valve body (1), a first spring (3) is fixedly connected inside the slot column (2), a first telescopic column (4) is fixedly connected to the top of the first spring (3), a valve flap (5) is fixedly connected to the top of the first telescopic column (4), and the valve flap (5) is connected to the bottom of the valve stem (6).

3. The flange type pressure reducing valve according to claim 1, characterized in that: The disassembly assembly comprises a disassembly block (24), two disassembly blocks (24) are both arranged in the flange (20), a slot (25) is provided at one outward end of the disassembly block (24), a slot (26) is provided on the outside of the disassembly block (24), the slot (26) is communicated with the slot (25), two limit blocks (27) are fixedly connected in the slot (25), and the limit blocks (27) are arranged on both sides of the slot (26).

4. A flange type pressure reducing valve according to claim 1, characterized in that: Both sides of the pressing plate (13) are arranged in the sliding groove (12), and the outside of the pressing plate (13) is slidably connected to the inner wall of the sliding groove (12).

5. The flange type pressure reducing valve according to claim 1, characterized in that: The bottom of the threaded rod (14) is rotatably connected to the pressing plate (13).

6. The flange type pressure reducing valve according to claim 1, characterized in that: A knob (15) is fixedly connected to the top of the threaded rod (14), and the knob (15) is arranged on the outside of the valve cover (11).

7. The flange type pressure reducing valve according to claim 1, characterized in that: The second telescopic column (18) is arranged at the bottom of the pressure plate (13), and the second telescopic column (18) is arranged in the second spring (10).

8. The flange type pressure reducing valve according to claim 1, characterized in that: The diaphragm (8) is arranged above the O-ring (7).

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