A pressure reducing valve for easy replacement of sealing parts

Abstract

The utility model relates to the technical field of pressure reducing valves, and specifically discloses a pressure reducing valve that is convenient for replacing sealing parts, including a pressure reducing valve pipeline body, a mounting frame installed in the middle of the pressure reducing valve pipeline body, a water flow regulating device installed inside the mounting frame, the top of the water flow regulating device is snap-connected with the mounting frame, a pressure regulating assembly is installed on the upper part of the mounting assembly, the pressure regulating assembly as a whole is convenient for disassembly, and the mounting assembly is installed on the upper part of the pressure regulating assembly. By setting up a pressure regulating assembly and most of its components are movably installed, the function of controlling the water flow regulating device to work normally can be achieved, and further, the function of facilitating the disassembly of the components of the pressure regulating assembly can be achieved, which solves the problem that most pressure reducing valves on the market are inconvenient when disassembling and repairing the sealing parts.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve with a sealing element that is convenient for replacing. Background Art

[0002] The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure through regulation, and automatically maintains a stable outlet pressure by relying on the energy of the medium itself. From the perspective of fluid mechanics, the pressure reducing valve is a throttling element with variable local resistance, that is, by changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of reducing pressure. Then, by relying on the regulation of the control and regulation system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve remains constant within a certain error range.

[0003] The common pressure reducing valves on the market are prone to leakage after long-term use if the seals therein are aged. Therefore, the seals need to be regularly inspected and replaced. At present, the inspection and replacement of the seals generally requires the entire pressure reducing valve to be disassembled, and then the seals therein are replaced. Because there are generally many screws on the surface of the pressure reducing valve, the screws are easy to rust over a long period of time and are difficult to remove. The overall maintenance and replacement process is relatively labor-intensive.

[0004] To this end, we propose a pressure reducing valve that is easy to replace the sealing part. Utility Model Content

[0005] The utility model aims to provide a pressure reducing valve which is convenient for replacing a sealing member, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure reducing valve that is easy to replace a seal, comprising a pressure reducing valve pipeline body, a mounting frame installed in the middle of the pressure reducing valve pipeline body, a water flow regulating device installed inside the mounting frame, the top of the water flow regulating device is snap-connected with the mounting frame, a pressure regulating assembly, the pressure regulating assembly is installed on the upper part of the water flow regulating device, and a mounting assembly, the mounting assembly is installed on the upper part of the pressure regulating assembly, the pressure regulating assembly comprises a sealing barrel, the sealing barrel is installed on the upper surface of the mounting frame, a second sealing ring is installed on the upper surface of the mounting frame, a round block is slidably connected to the inside of the sealing barrel, a top block is fixedly connected to the bottom surface of the round block, the bottom surface position of the top block corresponds to the top of the water flow regulating device, a cover plate is placed on the upper part of the first sealing ring, a threaded rod is threadedly connected to the upper surface of the cover plate, the bottom end of the threaded rod passes through the bottom surface of the cover plate, and the bottom end of the threaded rod contacts the upper surface of the round block.

[0007] Preferably, a spring groove is provided between the side of the round block close to the second sealing ring, a second spring is placed between the two spring grooves, and the second spring is sleeved with the top block.

[0008] Preferably, a first sealing ring is fixedly connected to the top of the sealing barrel.

[0009] Preferably, the top end of the threaded rod is fixedly connected with a rotating disk, and the rotating disk and the threaded rod are located at the same center.

[0010] Preferably, the mounting assembly comprises four mounting rods, each of which is slidably connected to the cover plate; a fixing ring is placed on the upper part of the cover plate; a first spring is fixedly connected between the bottom surface of the fixing ring and the upper surface of the cover plate; a limiting groove is provided on the side surface of each mounting rod; and four limiting rods matching the limiting grooves are fixedly connected to the outer surface of the fixing ring.

[0011] Preferably, each of the limiting grooves is at the same horizontal height.

[0012] Preferably, the round block is provided with a smooth upper surface.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. When the device as a whole needs to be used for decompression work, the threaded rod can be rotated by rotating the rotating disk in forward and reverse directions. At this time, the bottom end of the threaded rod can be lowered or raised through the threaded connection between the threaded rod and the cover plate. When the threaded rod descends, the bottom end of the threaded rod will contact the upper surface of the round block to squeeze the round block. At this time, the round block and the top block will descend or rise. When the top block descends, the bottom surface of the top block will contact the water flow regulating device, and the water flow regulating device can be opened to a certain extent. When the top block rises, the top block will be automatically reset due to the influence of the second spring force, and the water flow regulating device can be further closed to a certain extent.

[0015] By setting up a pressure regulating assembly, the function of controlling the water flow regulating device to work normally can be achieved. By setting the components of the pressure regulating assembly to be movably installed, the function of facilitating the disassembly of the components of the pressure regulating assembly can be further achieved, thereby solving the problem of the inconvenience of disassembling and repairing the seals of most pressure reducing valves on the market.

[0016] 2. When it is necessary to replace and overhaul the seal of the pressure reducing valve, first return the threaded rod to the top to prevent the round block from flying out due to the elastic force of the second spring, and then move the limit rod in the opposite direction for one end. At this time, the limit rod can be pulled out from the inside of the limit groove, and then the cover plate can be removed from the outer surface of the mounting rod as a whole. At this time, it is convenient to overhaul and replace the round block, the second spring, the first sealing ring and the second sealing ring. After the overhaul and replacement are completed, first put the cover plate on the surface of the mounting rod, and then rotate the limit rod in the opposite direction for a distance, and then press the cover plate downward, and then each limit rod is inserted into the inside of the limit groove. At this time, under the influence of the elastic force and torsion of the first spring, the position of the cover plate can be firmly fixed, and the sealing barrel can be further firmly sealed.

[0017] By setting up the installation component, the device as a whole can be firmly sealed, and the parts of the pressure regulating component can be easily replaced and repaired. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure of .

[0022] In the figure: 1. pressure regulating assembly; 2. mounting assembly; 3. pressure reducing valve pipeline body; 4. mounting frame; 5. water flow regulating device; 6. round block; 7. top block; 8. spring groove; 9. cover plate; 10. threaded rod; 11. rotating disk; 12. first sealing ring; 13. fixing ring; 14. limiting rod; 15. first spring; 16. second sealing ring; 17. sealing barrel; 18. second spring; 19. mounting rod; 20. limiting groove. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 4, the utility model provides a technical solution:

[0025] Embodiment 1, a pressure reducing valve that is easy to replace the seal, includes a pressure reducing valve pipeline body 3, a mounting bracket 4 is installed in the middle of the pressure reducing valve pipeline body 3, a water flow regulating device 5 is installed inside the mounting bracket 4, the top of the water flow regulating device 5 is snap-connected with the mounting bracket 4, a pressure regulating component 1, the pressure regulating component 1 is installed on the upper part of the water flow regulating device 5, the pressure regulating component 1 is easy to disassemble as a whole, and a mounting component 2, the mounting component 2 is installed on the upper part of the pressure regulating component 1.

[0026] The pressure regulating assembly 1 includes a sealing barrel 17, which is mounted on the upper surface of the mounting frame 4. A second sealing ring 16 is mounted on the upper surface of the mounting frame 4. A round block 6 is slidably connected to the inside of the sealing barrel 17. A top block 7 is fixedly connected to the bottom surface of the round block 6. The bottom surface position of the top block 7 corresponds to the top of the water flow regulating device 5. A cover plate 9 is placed on the upper part of the first sealing ring 12. A threaded rod 10 is threadedly connected to the upper surface of the cover plate 9. The bottom end of the threaded rod 10 passes through the bottom surface of the cover plate 9, and the bottom end of the threaded rod 10 contacts the upper surface of the round block 6.

[0027] A spring groove 8 is provided between the side of the round block 6 close to the second sealing ring 16, and a second spring 18 is placed between the two spring grooves 8. The second spring 18 is sleeved with the top block 7. When the upper surface of the round block 6 is not subjected to pressure, the position of the round block 6 and the top block 7 can be automatically reset by the influence of the elastic force of the second spring 18.

[0028] The top of the sealing barrel 17 is fixedly connected with a first sealing ring 12 , so that the sealing effect of the sealing barrel 17 can be better.

[0029] The top end of the threaded rod 10 is fixedly connected with a rotating disk 11 , and the rotating disk 11 and the threaded rod 10 are located at the same center of a circle, so that the staff can make it easier to rotate the threaded rod 10 .

[0030] When the device as a whole needs to be used for decompression work, the threaded rod 10 can be rotated by rotating the rotating disk 11 in the forward and reverse directions. At this time, the bottom end of the threaded rod 10 can be lowered or raised through the threaded connection between the threaded rod 10 and the cover plate 9. When the threaded rod 10 descends, the bottom end of the threaded rod 10 will contact the upper surface of the round block 6 to squeeze the round block 6. At this time, the round block 6 and the top block 7 will descend or rise. When the top block 7 descends, the bottom surface of the top block 7 will contact the water flow regulating device 5, and the water flow regulating device 5 can be opened to a certain extent. When the top block 7 rises, the elastic force of the second spring 18 will cause the top block 7 to automatically reset, and further the water flow regulating device 5 can be closed to a certain extent.

[0031] By setting up the pressure regulating component 1, the function of controlling the water flow regulating device 5 to work normally can be achieved. By setting the components of the pressure regulating component 1 to be movably installed, the function of facilitating the disassembly of the components of the pressure regulating component 1 can be further achieved, thereby solving the problem that most of the pressure reducing valves on the market are inconvenient to disassemble and repair the seals.

[0032] Embodiment 2, mounting assembly 2, comprises mounting rods 19, and there are four mounting rods 19, and the four mounting rods 19 are all slidably connected with the cover plate 9, and a fixing ring 13 is placed on the upper part of the cover plate 9, and a first spring 15 is fixedly connected between the bottom surface of the fixing ring 13 and the upper surface of the cover plate 9, and a limiting groove 20 is provided on the side surface of each mounting rod 19, and four limiting rods 14 adapted to the limiting groove 20 are fixedly connected to the outer surface of the fixing ring 13.

[0033] Each of the limiting grooves 20 is at the same horizontal height, so that the cover plate 9 can be installed in a horizontal state, and further a better sealing effect can be achieved when the sealing barrel 17 is sealed.

[0034] The round block 6 is provided with a smooth upper surface.

[0035] When it is necessary to replace and overhaul the seal of the pressure reducing valve, first retract the threaded rod 10 to the top to prevent the round block 6 from flying out due to the elastic force of the second spring 18, and then move the limit rod 14 in the opposite direction by one end. At this time, the limit rod 14 can be pulled out from the inside of the limit groove 20, and then the cover plate 9 can be removed from the outer surface of the mounting rod 19 as a whole. At this time, it is convenient to overhaul and replace the round block 6, the second spring 18, the first sealing ring 12 and the second sealing ring 16. When the overhaul and replacement is completed, first put the cover plate 9 on the surface of the mounting rod 19, then rotate the limit rod 14 in the opposite direction for a distance, and then press the cover plate 9 downward, and then each limit rod 14 is stuck into the inside of the limit groove 20. At this time, under the influence of the elastic force and torsion of the first spring 15, the position of the cover plate 9 can be firmly fixed, and further the sealing barrel 17 can be firmly sealed.

[0036] By providing the installation assembly 2, it is possible to achieve the effect of firmly sealing the entire device and to facilitate the replacement and maintenance of the components of the pressure regulating assembly 1.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure reducing valve for facilitating replacement of sealing elements, comprising a first sealing ring (12), a pressure reducing valve pipeline body (3), a mounting frame (4) being mounted in the middle of the pressure reducing valve pipeline body (3), a water flow regulating device (5) being mounted inside the mounting frame (4), the top end of the water flow regulating device (5) being snap-connected with the mounting frame (4), characterized in that: A pressure regulating assembly (1), wherein the pressure regulating assembly (1) is installed on the upper part of the water flow regulating device (5); A mounting assembly (2), wherein the mounting assembly (2) is mounted on an upper portion of the pressure regulating assembly (1); The pressure regulating assembly (1) comprises a sealing barrel (17), the sealing barrel (17) being mounted on the upper surface of a mounting frame (4), the upper surface of the mounting frame (4) being mounted with a second sealing ring (16), the sealing barrel (17) being slidably connected with a round block (6) inside, the bottom surface of the round block (6) being fixedly connected with a top block (7), the bottom surface position of the top block (7) corresponding to the top end of the water flow regulating device (5), a cover plate (9) being placed on the upper part of the first sealing ring (12), the upper surface of the cover plate (9) being threadedly connected with a threaded rod (10), the bottom end of the threaded rod (10) passing through the bottom surface of the cover plate (9), and the bottom end of the threaded rod (10) being in contact with the upper surface of the round block (6).

2. A pressure reducing valve for facilitating replacement of sealing members according to claim 1, characterized in that: A spring groove (8) is provided between the sides of the round block (6) and the second sealing ring (16), a second spring (18) is placed between the two spring grooves (8), and the second spring (18) is sleeved with the top block (7).

3. A pressure reducing valve for facilitating replacement of sealing members according to claim 1, characterized in that: The top end of the sealing barrel (17) is fixedly connected to a first sealing ring (12).

4. A pressure reducing valve for easy replacement of sealing members according to claim 1, characterized in that: The top end of the threaded rod (10) is fixedly connected to a rotating disk (11), and the rotating disk (11) and the threaded rod (10) are located at the same center of a circle.

5. The pressure reducing valve for facilitating replacement of sealing members according to claim 1, characterized in that: The mounting assembly (2) comprises mounting rods (19), wherein the mounting rods (19) are four in number, and the four mounting rods (19) are all slidably connected to the cover plate (9). A fixing ring (13) is placed on the upper part of the cover plate (9), and a first spring (15) is fixedly connected between the bottom surface of the fixing ring (13) and the upper surface of the cover plate (9). A limiting groove (20) is provided on the side surface of each mounting rod (19), and four limiting rods (14) adapted to the limiting grooves (20) are fixedly connected to the outer surface of the fixing ring (13).

6. A pressure reducing valve for easy replacement of sealing members according to claim 5, characterized in that: Each of the limiting grooves (20) is at the same horizontal height.

7. The pressure reducing valve for facilitating replacement of sealing members according to claim 1, characterized in that: The round block (6) is provided with a smooth upper surface.

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