Adjustable pressure reducing valve

Abstract

The utility model belongs to the technical field of pressure reducing valves, and particularly relates to an adjustable pressure reducing valve which comprises a pump shell, a mounting seat integrally connected to the top of the pump shell and communicated with the inside of the pump shell, an adjusting component comprising a connecting seat connected in the mounting seat, a connecting rod rotatably connected to the connecting seat, a driving gear connected to the bottom of the connecting rod, and a hand wheel connected to the top of the connecting rod. The central position of the connecting seat is rotatably connected with a shaft rod, the outer side of the shaft rod is connected with a driven gear in meshing transmission fit with the driving gear, the diameter of the driving gear is one third of that of the driven gear, the bottom end of the shaft rod is connected with a valve plate and drives the valve plate to rotate in the pump shell, and the hand wheel is rotated to drive the linkage gear set to act, so that the angle of the valve plate in the pump shell is changed. The diameter of the driving gear is one third of the diameter of the driven gear, the large gear is driven by the small gear to act, labor is saved, and meanwhile the angle adjusting precision of the valve plate is conveniently controlled.

Description

Technical Field

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

[0002] The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure by adjusting it, and automatically keeps the outlet pressure stable 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 velocity and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of pressure reduction;

[0003] When the pressure reducing valve is in use, the valve plate is generally driven to rotate directly from the valve housing through the shaft, so as to change the throttling area and change the flow rate and kinetic energy of the fluid. However, in actual application, it takes a lot of force to rotate and adjust the shaft directly through the handwheel, which is inconvenient to operate. Utility Model Content

[0004] One advantage of the utility model is that it provides an adjustable pressure reducing valve, in which a hand wheel is used to drive a linkage gear group to move, thereby changing the angle of the valve plate from the pump housing to achieve flow regulation. The diameter of the active tooth is set to one-third of the diameter of the driven tooth, and the large gear is driven by the small gear to move, which saves labor and facilitates the control of the accuracy of the valve plate adjustment angle.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] An adjustable pressure reducing valve, comprising:

[0007] The pump housing is connected to the base frame, and the top of the pump housing is integrally formed with a mounting seat that is connected to the inside of the pump housing;

[0008] The adjusting component is placed on the mounting seat, including a connecting seat connected to the mounting seat, a connecting rod is rotatably connected to the connecting seat, the top of the connecting rod extends above the connecting seat, the bottom of the connecting rod is connected to the active gear, and the top of the connecting rod is connected to the hand wheel;

[0009] The connecting shaft is rotated at the central position of the connecting seat, and the bottom end of the shaft extends into the pump casing. The outer side of the shaft is connected with a driven tooth that meshes with the driving tooth, and the diameter of the driving tooth is one third of the diameter of the driven tooth. The bottom end of the shaft is connected to the valve plate and drives the valve plate to rotate from the pump casing.

[0010] As a preferred solution of the adjustable pressure reducing valve described in the utility model, the left and right ends of the pump housing are both connected with connecting plates connected to the external pipe ends, and the connecting plates are provided with mounting holes.

[0011] As a preferred solution of the adjustable pressure reducing valve described in the utility model, in order to filter the liquid passing through the pump housing, a connecting frame is connected to the connecting disk, and a filter screen plate is embedded in the connecting frame.

[0012] As a preferred solution of the adjustable pressure reducing valve described in the utility model, in order to facilitate the replacement and cleaning of the filter screen plate, an external thread groove is opened on the outer side of the connecting frame, and an internal thread groove threadedly matched with the external thread groove is opened in the connecting plate.

[0013] As a preferred solution of the adjustable pressure reducing valve described in the utility model, in order to increase the sealing performance between the valve plate and the inner wall of the pump housing, multiple sets of sealing rings are sleeved on the outer side of the valve plate.

[0014] As a preferred solution of the adjustable pressure reducing valve described in the utility model, in order to improve the working stability of the pump casing, a bracket is connected to the bottom of the pump casing, and a supporting component is connected to the bracket.

[0015] As a preferred solution of the adjustable pressure reducing valve described in the utility model, the supporting component includes a support plate as a supporting base frame, the top of the support plate is integrally connected with a socket that cooperates with the plug-in frame, and the bottom of the support plate is connected with multiple groups of damping pads.

[0016] As a preferred solution of the adjustable pressure reducing valve described in the utility model, a plurality of groups of damping pads are linearly and equidistantly arranged from left to right along the bottom of the support plate, and the damping pads are bonded to the support plate.

[0017] As a preferred solution of the adjustable pressure reducing valve described in the utility model, in order to increase the tightness of the connection between the socket and the plug rack, a positioning bolt for fixing the socket is connected to the plug rack.

[0018] As a preferred solution of the adjustable pressure reducing valve described in the utility model, the outer side of the hand wheel is covered with a rubber pad, and the outer side of the rubber pad is provided with criss-cross anti-slip stripes.

[0019] Compared with existing technologies:

[0020] 1. Turn the handwheel, which drives the linkage gear group to move, thereby changing the angle of the valve plate from the pump housing to achieve flow regulation. The diameter of the active tooth is set to one-third of the diameter of the driven tooth, and the small gear drives the large gear to move, which saves effort and facilitates the control of the accuracy of the valve plate adjustment angle;

[0021] 2. The front filter screen filters the fluid to prevent some impurities from adhering to the inner side of the pump housing when flowing through the pump housing, thus affecting the movement between the valve plate and the pump housing. The rear filter screen can filter the fluid flowing through the pump housing to increase the cleanliness of the fluid.

[0022] 3. The damper plays an auxiliary buffering role, which can convert the vibration kinetic energy generated by the pump casing during operation and reduce the vibration amplitude of the pump casing during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of part A of the utility model;

[0026] Figure 4 It is a partial structural schematic diagram of the adjusting component of the utility model;

[0027] Figure 5 For this utility model Figure 2 Schematic diagram of some structures.

[0028] In the figure: 100 pump housing, 110 mounting seat, 120 connecting plate, 121 internal thread groove, 130 connecting frame, 131 external thread groove, 132 filter screen plate, 140 plug-in frame, 200 adjusting component, 210 connecting seat, 220 connecting rod, 221 driving tooth, 222 hand wheel, 230 shaft rod, 231 driven tooth, 240 valve plate, 241 sealing ring, 300 supporting component, 310 support plate, 311 socket, 312 positioning bolt, 320 damping pad. DETAILED DESCRIPTION

[0029] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0030] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0031] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0032] refer to Figures 1 to 5 According to a preferred embodiment of the utility model, it includes a pump housing 100, an adjusting component 200 and a supporting component 300;

[0033] Please continue reading Figure 1 , Figure 2 , Figure 3 and Figure 5 The pump housing 100 is used as a connection base. The top of the pump housing 100 is integrally formed with a mounting seat 110 that is connected to the inside of the pump housing 100. The left and right ends of the pump housing 100 are connected to connection plates 120 that are connected to the external pipe ends. The connection plates 120 are provided with mounting holes (not marked in the figure);

[0034] Please continue reading Figure 1 , Figure 2 , Figure 4 and Figure 5 The adjusting component 200 is placed on the mounting seat 110, including a connecting seat 210 threadedly connected to the mounting seat 110, and a connecting rod 220 is rotatably connected to the connecting seat 210. The top of the connecting rod 220 extends to the top of the connecting seat 210, and the bottom of the connecting rod 220 is connected to an active tooth 221. The top of the connecting rod 220 is connected to a hand wheel 222. The hand wheel 222 is rotated, and the hand wheel drives the active tooth 221 disposed at the bottom of the connecting rod 220 to rotate, and then drives the driven tooth 221 and the shaft 230 to rotate, thereby changing the angle of the valve plate 240 from the pump housing 100 to achieve flow regulation. The diameter of the active tooth 221 is one-third of the diameter of the driven tooth 231. The large gear is driven by the small gear to move, which saves labor and facilitates the control of the accuracy of the angle adjustment of the valve plate 240.

[0035] The central position of the connecting seat 210 is rotatably connected to the shaft rod 230, and the bottom end of the shaft rod 230 extends into the pump housing 100. The outer side of the shaft rod 230 is connected to a driven tooth 231 that meshes with the driving tooth 221. The diameter of the driving tooth 221 is one third of the diameter of the driven tooth 231. The bottom end of the shaft rod 230 is connected to the valve plate 240, and drives the valve plate 240 to rotate from the pump housing 100.

[0036] Please continue reading Figure 1 , Figure 2 and Figure 4The support component 300 includes a support plate 310 as a support frame, and a socket 311 that is plugged and matched with the plug-in frame 140 is integrally formed on the top of the support plate 310, and a plurality of groups of damping pads 320 are connected to the bottom of the support plate 310. The plurality of groups of damping pads 320 are linearly arranged and equidistantly arranged from left to right along the bottom of the support plate 310, and the damping pads 320 are bonded and connected to the support plate 310. The damper 320 plays an auxiliary buffering role, which can convert the vibration kinetic energy generated by the pump housing 100 during operation and reduce the vibration amplitude of the pump housing 100 during operation;

[0037] Furthermore, in order to filter the liquid passing through the pump housing 100, a connecting frame 130 is connected to the connecting plate 120, and a filter screen plate 132 is embedded in the connecting frame 130. The two sets of filter screen plates 132 cooperate with each other. The front filter screen plate 132 filters the fluid to prevent some impurities from adhering to the inner side of the pump housing 100 when flowing through the pump housing 100, thereby affecting the movement between the valve plate 240 and the pump housing 100. The rear filter screen plate 132 can filter the fluid passing through the pump housing 100 to increase the cleanliness of the fluid.

[0038] Furthermore, in order to facilitate the replacement and cleaning of the filter screen plate 132, an external thread groove 131 is provided on the outer side of the connecting frame 130, and an internal thread groove 121 threadedly matched with the external thread groove 131 is provided on the inner side of the connecting plate 120;

[0039] Furthermore, in order to increase the sealing performance between the valve plate 240 and the inner wall of the pump housing 100, multiple sets of sealing rings 241 are sleeved on the outer side of the valve plate 240;

[0040] Furthermore, in order to improve the working stability of the pump housing 100, a plug-in bracket 140 is connected to the bottom of the pump housing 100, and a support component 300 is connected to the plug-in bracket 140;

[0041] Furthermore, in order to increase the tightness of the connection between the socket 311 and the rack 140 , a positioning bolt 312 is connected to the rack 140 to fix the socket 311 .

[0042] Working principle: When the utility model is in use, the hand wheel 222 is rotated, and the hand wheel drives the active tooth 221 disposed at the bottom of the connecting rod 220 to rotate, and then drives the driven tooth 221 and the shaft 230 to rotate, thereby changing the angle of the valve plate 240 from the pump housing 100 to achieve flow regulation. The diameter of the active tooth 221 is one third of the diameter of the driven tooth 231. The large gear is driven by the small gear to move, which saves labor and facilitates the control of the accuracy of the angle adjustment of the valve plate 240.

[0043] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. Adjustable pressure reducing valve, characterized in that: Includes: A pump housing (100) connected to a base frame, wherein a mounting seat (110) is integrally formed and connected to the top of the pump housing (100) and is arranged in communication with the interior of the pump housing (100); The adjusting component (200) is placed on the mounting seat (110), and comprises a connecting seat (210) connected inside the mounting seat (110), a connecting rod (220) is rotatably connected to the connecting seat (210), a top end of the connecting rod (220) extends above the connecting seat (210), a bottom end of the connecting rod (220) is connected to an active tooth (221), and a top end of the connecting rod (220) is connected to a hand wheel (222); The connecting seat (210) is rotatably connected to a shaft rod (230) at the central position, and the bottom end of the shaft rod (230) extends into the pump housing (100). The outer side of the shaft rod (230) is connected to a driven tooth (231) meshing with the driving tooth (221), and the diameter of the driving tooth (221) is one third of the diameter of the driven tooth (231). The bottom end of the shaft rod (230) is connected to a valve plate (240) and drives the valve plate (240) to rotate from the pump housing (100).

2. The adjustable pressure reducing valve according to claim 1, characterized in that: The pump housing (100) Both left and right ends are connected with connection plates (120) connected to the external pipe ends, and the connection plates (120) are provided with mounting holes.

3. The adjustable pressure reducing valve according to claim 2, characterized in that: In order to filter the liquid passing through the pump housing (100), a connecting frame (130) is connected inside the connecting plate (120), and a filter screen plate (132) is embedded inside the connecting frame (130).

4. The adjustable pressure reducing valve according to claim 3, characterized in that: In order to facilitate replacement and cleaning of the filter screen plate (132), an external thread groove (131) is provided on the outside of the connecting frame (130), and an internal thread groove (121) threadedly matched with the external thread groove (131) is provided in the connecting plate (120).

5. The adjustable pressure reducing valve according to claim 1, characterized in that: In order to increase the sealing performance between the valve plate (240) and the inner wall of the pump housing (100), a plurality of sets of sealing rings (241) are sleeved on the outer side of the valve plate (240).

6. The adjustable pressure reducing valve according to claim 1, characterized in that: To lift the pump casing (100) working stability, the bottom of the pump housing (100) is connected to a bracket (140), and the bracket (140) is connected to a supporting component (300).

7. The adjustable pressure reducing valve according to claim 6, characterized in that: The support component (300) comprises a support plate (310) serving as a support base, the top of the support plate (310) being integrally connected with a socket (311) plugged into and matched with the plug-in rack (140), and the bottom of the support plate (310) being connected with a plurality of groups of damping pads (320).

8. The adjustable pressure reducing valve according to claim 7, characterized in that: A plurality of groups of the damping pads (320) are linearly arranged and equidistantly arranged from left to right along the bottom of the support plate (310), and the damping pads (320) are bonded to the support plate (310).

9. The adjustable pressure reducing valve according to claim 8, characterized in that: In order to increase the tightness of the connection between the socket (311) and the plug rack (140), a positioning bolt (312) for fixing the socket (311) is connected to the plug rack (140).

10. The adjustable pressure reducing valve according to claim 1, characterized in that: The outer side of the hand wheel (222) is covered with a rubber pad, and the outer side of the rubber pad is provided with criss-cross anti-slip stripes.

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