Pressure reducing valve

Abstract

The utility model discloses a pressure reducing valve which comprises a pressure reducing valve body, fixing flanges are arranged on the left side and the right side of the outer end face of the pressure reducing valve body respectively, a filtering mechanism is detachably arranged at the right end of the pressure reducing valve body, fixing rings are arranged on the left side and the right side of the outer end face of the pressure reducing valve body respectively, and supporting rods are detachably arranged on the two fixing rings respectively. Supporting sleeves are arranged on the outer end faces of the two supporting rods in a sliding mode, first locking holes are formed in the supporting sleeves, a plurality of second locking holes are formed in the supporting rods, the first locking holes and the second locking holes are connected through bolts, supporting plates are arranged at the outer side ends of the supporting sleeves, and the supporting plates are connected through bolts. Fixing holes are symmetrically formed in the supporting plate, through the design of the supporting rod, bolts penetrate through the fixing holes of the supporting plate to be installed and locked corresponding to the external environment, protection of different installation positions is enhanced conveniently, and the strength of the whole device in the using process is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure reducing valve technology, and more specifically, to a pressure reducing valve. Background Technology

[0002] A pressure reducing valve is a valve that reduces the inlet pressure to a desired outlet pressure by adjusting the pressure, and automatically maintains a stable outlet pressure by relying on the energy of the medium itself. From a fluid mechanics perspective, a pressure reducing valve is a throttling element with variable local resistance. That is, by changing the throttling area, the flow velocity and kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of pressure reduction. However, existing pressure reducing valves lack suitable reinforced protective mechanisms during use, have limited installation strength, and are prone to damage to internal components due to impurities in the transported medium entering the valve. They also lack suitable filtration and protection mechanisms. Furthermore, the reinforced protective mechanism is integrated with the pressure reducing valve, making it prone to damage over long-term use, inconvenient to replace separately, and costly to replace. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the problems existing in the prior art, this utility model provides a pressure reducing valve to solve the technical problems mentioned in the background art, such as the lack of a suitable reinforcement and protection mechanism and limited installation strength of the pressure reducing valve during use.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure reducing valve, comprising a pressure reducing valve body, with fixed flanges on both the left and right sides of the outer end face of the pressure reducing valve body, a filter mechanism detachably provided on the right end of the pressure reducing valve body, fixed rings on both the left and right sides of the outer end face of the pressure reducing valve body, support rods detachably provided on both fixed rings, support sleeves slidably provided on the outer end faces of both support rods, a first locking hole provided on the support sleeve, a second locking hole provided on the support rod, multiple second locking holes provided, the first locking holes and the second locking holes being connected by bolts, a support plate provided on the outer end of the support sleeve, and fixed holes symmetrically provided on the support plate.

[0007] The present invention is further configured such that the filtration mechanism includes a filter box and a connecting pipe, and two connecting pipes are provided, which are respectively arranged through the left and right ends of the filter box. The filter box is detachably provided with a filter screen. The left connecting pipe is detachably arranged relative to the pressure reducing valve body. Both connecting pipes are provided with connecting flanges corresponding to the fixed flange. The fixed flange and the connecting flange are connected by bolts to facilitate pre-filtration.

[0008] The present invention is further configured such that an installation plate is provided on the upper surface of the filter screen, and an installation groove is provided on the upper surface of the filter box corresponding to the installation plate. First installation holes are symmetrically provided on the installation plate, and second installation holes are provided inside the installation groove corresponding to the two first installation holes. The first installation holes and the second installation holes are connected by bolts to facilitate filter screen replacement.

[0009] The present invention is further configured such that each of the two support rods is provided with a connecting seat corresponding to the fixing ring, and both fixing rings are detachably provided with fixing seats. The fixing seats and connecting seats are detachably connected, and the fixing seats and connecting seats are rotatably arranged relative to the fixing rings, which facilitates the overall installation and adjustment of the support rods.

[0010] The present invention is further configured such that each of the two connecting seats is symmetrically provided with positioning rods, and each of the two fixed seats is provided with positioning holes corresponding to the multiple positioning rods, so as to realize the installation and positioning of the connecting seats and the fixed seats.

[0011] The present invention is further configured such that each of the plurality of positioning rods is provided with a positioning ring, and the positioning rods and positioning rings are threadedly connected to achieve locking during assembly.

[0012] The present invention is further configured such that each of the two fixed seats is provided with a first threaded hole, and each of the two fixed rings is provided with a second threaded hole corresponding to the first threaded hole on its outer end face. Multiple second threaded holes are provided in the circumferential direction of the fixed rings. The first threaded holes and the second threaded holes are connected by bolts, which facilitates locking after the overall installation angle is adjusted.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a pressure reducing valve, which has the following beneficial effects:

[0015] 1. Through the design of the support rod, the support sleeve slides and adjusts relative to the support rod, thereby adjusting the support plate to a suitable position. The bolts pass through the first locking hole and the second locking hole and are tightened and fixed. The bolts pass through the fixing holes of the support plate to install and lock according to the external environment, which facilitates the strengthening of protection in different installation positions and improves the overall strength of the device during use.

[0016] 2. Through the design of the connecting seat and the fixed seat, the connecting seat and the fixed seat are detachable. After the corresponding fixed ring is assembled, it is rotated to the appropriate position relative to the fixed ring. The bolt passes through the first threaded hole and the second threaded hole and is tightened to fix it. This facilitates the overall angle adjustment of the support rod, makes it easy to disassemble and replace, and reduces replacement costs.

[0017] 3. Through the design of the filter mechanism, the connecting pipe of the filter mechanism is detachably set relative to the pressure reducing valve body pipe. The bolts pass through the fixing flange and the connecting flange and are tightened to fix it, which facilitates the filtration and protection of the medium before it enters the pressure reducing valve body and avoids damage to the internal mechanism by impurities. Attached Figure Description

[0018] Figure 1 A schematic diagram of the preferred overall structure of a pressure reducing valve;

[0019] Figure 2 A schematic diagram of a preferred pressure reducing valve body structure;

[0020] Figure 3 A schematic diagram of a preferred assembly structure of a pressure reducing valve, comprising a connecting seat, a support rod, and a positioning rod.

[0021] Figure 4 A schematic diagram of a preferred mounting base structure for a pressure reducing valve;

[0022] Figure 5 An exploded view of the overall structure of a preferred filter mechanism for a pressure reducing valve.

[0023] In the diagram: 1. Pressure reducing valve body; 2. Fixed flange; 3. Fixed ring; 4. Support rod; 5. Support sleeve; 6. First locking hole; 7. Second locking hole; 8. Support plate; 9. Fixed hole; 10. Filter box; 11. Connecting pipe; 12. Filter screen; 13. Connecting flange; 14. Mounting plate; 15. Mounting groove; 16. First mounting hole; 17. Second mounting hole; 18. Connecting seat; 19. Fixed seat; 20. Positioning rod; 21. Positioning hole; 22. Positioning ring; 23. First threaded hole; 24. Second threaded hole. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0027] Please see Figures 1-3A pressure reducing valve includes a pressure reducing valve body 1. Fixed flanges 2 are provided on both the left and right sides of the outer end face of the pressure reducing valve body 1. A filter mechanism is detachably provided on the right end of the pressure reducing valve body 1. Fixed rings 3 are provided on both the left and right sides of the outer end face of the pressure reducing valve body 1. Support rods 4 are detachably provided on both fixed rings 3. Support sleeves 5 are slidably provided on the outer end faces of both support rods 4. A first locking hole 6 is provided on the support sleeve 5, and a second locking hole 7 is provided on the support rod 4. Multiple second locking holes 7 are provided. The first locking holes 6 and the second locking holes 7 are connected by bolts. A support plate 8 is provided on the outer end of the support sleeve 5, and fixed holes 9 are symmetrically provided on the support plate 8.

[0028] In this embodiment, the fixed flange 2 and the external pipeline are installed and locked together. The support rod 4 is installed corresponding to the fixed ring 3. After being installed to a suitable angle, the support sleeve 5 is slidably adjusted relative to the support rod 4 to a suitable position. The bolts pass through the first locking hole 6 and the second locking hole 7 and are tightened to fix the position of the support plate 8. The bolts pass through the fixing hole 9 of the support plate 8 to be installed in accordance with the external environment, thereby strengthening the overall installation.

[0029] Please see Figure 1 and Figure 5 As one implementation method for feed filtration: the filtration mechanism includes a filter box 10 and a connecting pipe 11. There are two connecting pipes 11, which pass through the left and right ends of the filter box 10 respectively. A filter screen 12 is detachably installed inside the filter box 10. The left connecting pipe 11 is detachably installed relative to the pressure reducing valve body 1. Each of the two connecting pipes 11 has a connecting flange 13 corresponding to the fixed flange 2. The fixed flange 2 and the connecting flange 13 are connected by bolts. The upper end face of the filter screen 12 is provided with a mounting plate 14. The upper end face of the filter box 10 is provided with a mounting groove 15 corresponding to the mounting plate 14. The mounting plate 14 is symmetrically provided with first mounting holes 16. The mounting groove 15 is provided with second mounting holes 17 corresponding to the two first mounting holes 16. The first mounting holes 16 and the second mounting holes 17 are connected by bolts.

[0030] Specifically, the connecting pipe 11 with connecting flange 13 is installed corresponding to the pressure reducing valve. The fixing flange 2 and the connecting flange 13 of the connecting pipe 11 are matched, and the bolts are passed through and tightened to achieve installation and locking. The external medium enters the body of the pressure reducing valve 1 after being filtered by the filter screen 12 inside the filter box 10 to achieve pressure reduction and regulation. After the device has been used for a long time, the conveying is stopped, and the valve with the discharge pipe on the filter box 10 is opened to discharge the filtered impurities. After long-term use, if the filter screen 12 is damaged, the bolts between the first mounting hole 16 and the second mounting hole 17 are removed, and the mounting plate 14 and the filter screen 12 are removed and replaced as a whole.

[0031] Please see Figures 1-4As one implementation method for installation and adjustment: each of the two support rods 4 is provided with a connecting seat 18 corresponding to the fixing ring 3. Both fixing rings 3 are detachably provided with a fixing seat 19. The fixing seat 19 and the connecting seat 18 are detachably connected. The fixing seat 19 and the connecting seat 18 are rotatably arranged relative to the fixing ring 3. Each of the two connecting seats 18 is symmetrically provided with a positioning rod 20. Each of the two fixing seats 19 is provided with a positioning hole 21 corresponding to multiple positioning rods 20. Each of the multiple positioning rods 20 is provided with a positioning ring 22. The positioning rods 20 and the positioning rings 22 are threadedly connected. Each of the two fixing seats 19 is provided with a first threaded hole 23. Each of the outer end faces of the two fixing rings 3 is provided with a second threaded hole 24 corresponding to the first threaded hole 23. Multiple second threaded holes 24 are provided in the circumferential direction relative to the fixing ring 3. The first threaded holes 23 and the second threaded holes 24 are connected by bolts.

[0032] Specifically, when installing the support rod 4, the connecting seat 18 and the fixed seat 19 are installed corresponding to the fixed ring 3. The positioning rod 20 and the positioning hole 21 cooperate to position the connecting seat 18 and the fixed seat 19. The positioning ring 22 and the positioning rod 20 are threaded together and locked. After the fixed seat 19 and the connecting seat 18 are assembled and locked corresponding to the fixed ring 3, they are rotated and adjusted to a suitable angle. The first threaded hole 23 and the suitable second threaded hole 24 on the fixed ring 3 are aligned. The bolts are passed through and tightened to fix the connection, which facilitates installation and adjustment, and facilitates disassembly and replacement.

[0033] In summary, the overall equipment is in use:

[0034] When in the reinforced installation state, the connecting seat 18 and the fixed seat 19 are installed in conjunction with the corresponding fixed ring 3. The positioning rod 20 and the positioning hole 21 are installed and positioned. The positioning ring 22 and the positioning rod 20 are threaded together and locked. The fixed seat 19 and the connecting seat 18 are rotated relative to the fixed ring 3 to adjust to a suitable angle. The first threaded hole 23 and the second threaded hole 24 are aligned. The bolts are passed through and tightened to fix them. The support sleeve 5 is slidably adjusted relative to the support rod 4 to a suitable position. The bolts are passed through the first locking hole 6 and the second locking hole 7 and tightened to fix them, thereby realizing the position adjustment of the support plate 8. The bolts are passed through the fixing hole 9 to install and lock in accordance with the external environment, improving the overall installation stability and providing reinforced protection for the entire device.

[0035] When the filter mechanism is installed, the connecting pipe 11 is installed and matched with the pressure reducing valve. The connecting flange 13 of the connecting pipe 11 is matched with the fixing flange 2 of the pressure reducing valve. The bolts are passed through and tightened to fix it. The external medium enters the pressure reducing valve and is filtered by the filter screen 12 inside the filter box 10 to filter impurities in the medium and prevent impurities in the medium from damaging the inside of the pressure reducing valve body 1. After long-term use, stop the conveying and open the valve of the discharge pipe on the filter box 10 to discharge the internal impurities to the outside.

[0036] When the filter screen 12 is being replaced, if the filter screen 12 is damaged after prolonged use, remove the bolts between the first mounting hole 16 and the second mounting hole 17, and disassemble the filter screen 12 and the mounting plate 14 as a whole. After the filter screen 12 is removed, it can be repaired or replaced. After the repair is completed, the filter screen 12 or the new filter screen 12 is installed in the corresponding filter box 10. The mounting plate 14 and the mounting groove 15 are installed together, and the bolts are tightened through the first mounting hole 16 and the second mounting hole 17 to fix it.

[0037] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure reducing valve, comprising a pressure reducing valve body (1), wherein fixed flanges (2) are provided on both the left and right sides of the outer end face of the pressure reducing valve body (1), characterized in that: The pressure reducing valve body (1) is detachably provided with a filter mechanism on the right end. The pressure reducing valve body (1) is provided with a fixing ring (3) on both the left and right sides of the outer end face. The two fixing rings (3) are detachably provided with a support rod (4). The two support rods (4) are slidably provided with a support sleeve (5) on the outer end face. The support sleeve (5) is provided with a first locking hole (6). The support rod (4) is provided with a second locking hole (7). There are multiple second locking holes (7). The first locking hole (6) and the second locking hole (7) are connected by bolts. The outer end of the support sleeve (5) is provided with a support plate (8). The support plate (8) is symmetrically provided with fixing holes (9).

2. A pressure reducing valve according to claim 1, characterized in that: The filtration mechanism includes a filter box (10) and a connecting pipe (11). There are two connecting pipes (11), which pass through the left and right ends of the filter box (10) respectively. The filter box (10) is equipped with a detachable filter screen (12). The left connecting pipe (11) is detachably mounted relative to the pressure reducing valve body (1). Both connecting pipes (11) are equipped with connecting flanges (13) corresponding to the fixed flange (2). The fixed flange (2) and the connecting flange (13) are connected by bolts.

3. A pressure reducing valve according to claim 2, characterized in that: The filter screen (12) has an installation plate (14) on its upper end face. The filter box (10) has an installation groove (15) on its upper end face corresponding to the installation plate (14). The installation plate (14) has symmetrical first installation holes (16). The installation groove (15) has a second installation hole (17) corresponding to the two first installation holes (16). The first installation holes (16) and the second installation holes (17) are connected by bolts.

4. A pressure reducing valve according to claim 1, characterized in that: Each of the two support rods (4) is provided with a connecting seat (18) corresponding to the fixed ring (3). Both fixed rings (3) are detachably provided with a fixed seat (19). The fixed seat (19) and the connecting seat (18) are detachably connected. The fixed seat (19) and the connecting seat (18) are rotatably connected relative to the fixed ring (3).

5. A pressure reducing valve according to claim 4, characterized in that: Both of the connecting seats (18) are symmetrically provided with positioning rods (20), and both of the fixing seats (19) are provided with positioning holes (21) corresponding to multiple positioning rods (20).

6. A pressure reducing valve according to claim 5, characterized in that: Each of the positioning rods (20) is provided with a positioning ring (22), and the positioning rods (20) and the positioning rings (22) are threaded together.

7. A pressure reducing valve according to claim 4, characterized in that: Both of the fixed seats (19) are provided with a first threaded hole (23), and the outer end face of both fixed rings (3) is provided with a second threaded hole (24) corresponding to the first threaded hole (23). Multiple second threaded holes (24) are provided in the circumferential direction relative to the fixed rings (3). The first threaded holes (23) and the second threaded holes (24) are connected by bolts.

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