CN223399335U - An automatic constant pressure reducing valve - Google Patents
An automatic constant pressure reducing valveInfo
- Publication number
- CN223399335U CN223399335U CN202422919639.1U CN202422919639U CN223399335U CN 223399335 U CN223399335 U CN 223399335U CN 202422919639 U CN202422919639 U CN 202422919639U CN 223399335 U CN223399335 U CN 223399335U
- Authority
- CN
- China
- Prior art keywords
- pressure reducing
- reducing valve
- valve
- pressure
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses an automatic constant-pressure type pressure reducing valve which comprises a pressure reducing valve main body, wherein a valve seat is fixedly connected to the middle position inside the pressure reducing valve main body, a valve core is arranged between the valve seats, a fixing rod is fixedly connected to the middle part of the valve core, a valve rod is connected to the top of the fixing rod, a hand wheel in meshed connection with the valve rod gear is arranged in the middle of the outer side of the pressure reducing valve main body, flange plates are fixedly connected to the two ends of the pressure reducing valve main body, one end of a tension spring is axially and uniformly fixed to the inner wall of the flange plate at the inlet end of the pressure reducing valve main body, the other end of the tension spring is connected with a circular damping plate, a funnel-shaped water outlet is arranged in the middle of the damping plate, a plurality of through holes are uniformly formed in the circumferential direction of the damping plate, and a matching block for being in plug-in matching with the water outlet is further arranged on one side of the valve seat. When the water source circulates through the pressure reducing valve main body, the outside water pressure of the damping plate is high after the water pressure is controlled, the tension spring is elastically stretched, and then the water outlet is in plug-in fit with the matching block, so that the interference effect is achieved, and the high water pressure of the water source is controlled.
Description
Technical Field
The utility model relates to the technical field of pressure reducing valves, in particular to an automatic constant-pressure type pressure reducing valve.
Background
The pressure reducing valve is a valve which reduces the inlet pressure to a certain set outlet pressure by adjusting and automatically keeps the outlet pressure stable by means of the energy of the medium. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, namely, by changing the throttling area, the flow speed and the kinetic energy of the fluid are changed, and different pressure losses are caused, so that the aim of reducing pressure is achieved. And then, by means of the adjustment of the control and adjustment system, the fluctuation of the outlet pressure is balanced with the spring force, so that the outlet pressure is kept constant within a certain error range.
The relief pressure valve among the prior art need accomplish the pressure reduction circulation effect through manual control case and disk seat distance between in the use, but when great to the water pressure, can cause certain damage to valve body inner structure, traditional relief pressure valve is inconvenient to carry out constant voltage control according to the water pressure size simultaneously, causes the damage, influences life.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art, and provides an automatic constant-pressure type pressure reducing valve, wherein the pressure of water is high, the impact action on a damping plate can be realized, the tension spring can be elastically stretched, then a water outlet is in plug-in fit with a matching block to complete the interference action, the strong pressure of a water source can be controlled, the impact damage on a pressure reducing valve main body is reduced, and the pressure of water can be slowed down and discharged through a through hole.
The utility model aims at realizing the following technical scheme:
An automatic constant pressure type pressure reducing valve comprises a pressure reducing valve body, wherein a valve seat is fixedly connected to the middle position inside the pressure reducing valve body, a valve core is arranged between the valve seats, a fixing rod is fixedly connected to the middle of the valve core, a valve rod is connected to the top of the fixing rod, a hand wheel is arranged in the middle of the outer side of the pressure reducing valve body, a rotating rod which is meshed with the valve rod through a gear is arranged on the hand wheel, flanges are fixedly connected to the two ends of the pressure reducing valve body, one end of a tension spring is axially and uniformly fixed to the inner wall of the flange at the inlet end of the pressure reducing valve body, the other end of the tension spring is connected with a circular damping plate, a funnel-shaped water outlet is arranged in the middle of the damping plate, a plurality of through holes are circumferentially and uniformly formed in the damping plate, and a matching block which is used for being matched with the water outlet in a plugging mode is further arranged on the valve seat.
Further, the top of dead lever is equipped with the recess, and the valve rod bottom be equipped with the bolt piece that the recess agrees with, the bolt piece inserts behind the recess pass through dead lever, recess and bolt piece realization fastening through the bolt, the both ends joint of bolt has the sealing plug.
Further, the outside fixedly connected with seal wrapping layer of case, the inboard all fixedly connected with sealing gasket of disk seat, sealing gasket and seal wrapping layer can realize sealed cooperation.
Further, a first pressure gauge is fixedly connected to one side of the top end of the pressure reducing valve main body, and a second pressure gauge is fixedly connected to the other side of the top end of the pressure reducing valve main body.
Further, one end of the rotating rod is fixedly connected with the hand wheel, a spur gear is arranged at the other end of the rotating rod, a spur rack is arranged at the top of the valve rod, the spur gear is meshed with the spur rack, and lifting control of the valve rod is achieved through rotating the hand wheel.
Further, the matching block is arranged on one side of the valve seat close to the damping plate.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
1. the automatic constant pressure control is realized by arranging the structures such as the damping plate, the tension spring, the water outlet, the matching block and the like. When the water source circulates through the pressure reducing valve main body, the damping plate generates displacement under high water pressure impact, and the elastic stretching of the tension spring and the plugging cooperation of the water outlet and the cooperation block can effectively resist the impact of the excessive high water pressure and prevent the damage of the pressure reducing valve main body. In addition, the through holes are arranged to help relieve water pressure, so that discharged water flow is more stable, a stable automatic constant pressure effect is realized, and the influence of water pressure fluctuation on pipelines and equipment is reduced.
2. In the design of the utility model, the sealing wrapping layer outside the valve core is tightly matched with the sealing gasket inside the valve seat, thus ensuring good sealing performance. The sealing coating layer can effectively prevent impurities (such as sand and stone) in a water source from entering between the valve core and the valve seat, and damage or sinking to the valve core is avoided, so that long-term stable work and decompression effect of the decompression valve are ensured. Particularly in the long-term use process, through the connection of the bolt and the sealing plug, the valve core and the valve seat are tightly matched and are easy to detach, replace and maintain, so that the service life of the pressure reducing valve is prolonged.
3. The valve is simple and convenient to operate, and the valve core and the valve seat are convenient to detach and maintain by the cooperation of the fixed rod, the valve rod, the bolt block and the bolt. The setting of hand wheel and manometer has made things convenient for the adjustment and the water pressure monitoring of user to the relief pressure valve, has ensured the real-time regulation and the steady operation of system. Through the design of ring flange connection for the installation of relief pressure valve is simpler with dismantling, has adapted to the demand of various piping systems.
4. The protection function is enhanced, namely, the tension spring is matched with the damping plate, so that an effective reset function is provided, vibration caused by water pressure change is reduced through elastic stretching, and long-term damage of the pressure reducing valve is avoided. The plugging action of the matching block and the water outlet is beneficial to further stabilizing water flow, reducing the impact of water pressure change on the valve body and prolonging the service life of the pressure reducing valve.
Through the above-mentioned optimal design, the utility model can still maintain stable decompression effect under the condition of large water pressure fluctuation, effectively reduce equipment damage and improve the overall durability of the system.
Drawings
FIG. 1 is a cross-sectional elevation view of a structure of an automatic constant pressure relief valve of the present utility model;
FIG. 2 is a perspective view of a damping plate in the automatic constant pressure relief valve of the present utility model;
FIG. 3 is an enlarged view of the structure at A in FIG. 1;
Fig. 4 is an enlarged schematic view of the structure of the fixed rod and the valve rod of the automatic constant pressure type pressure reducing valve of the present utility model.
Reference numeral 1, a pressure reducing valve body; 2, a valve core, 3, a sealing gasket, 4, a valve seat, 5, a first pressure gauge, 6, a hand wheel, 7, a second pressure gauge, 8, a damping plate, 9, a water outlet, 10, a through hole, 11, a matching block, 12, a tension spring, 13, a fixed rod, 14, a valve rod, 15, a sealing plug, 16, a bolt block, 17 and a sealing wrapping layer.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples. Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
Referring to fig. 1-4, the automatic constant pressure type pressure reducing valve comprises a pressure reducing valve main body 1, wherein a valve seat 4 is fixedly connected to the middle position inside the pressure reducing valve main body 1, a valve core 2 is arranged between the valve seats 4, water sources are circulated through the distance between the valve seat 4 and the valve core 2, and are discharged through the other end of the pressure reducing valve main body 1, the discharged water sources are subjected to flow rate control through the distance between the valve seat 4 and the valve core 2, so that the required discharge pressure is kept, a fixing rod 13 is fixedly connected to the middle part of the valve core 2, in the embodiment, the fixing rod 13 penetrates through the middle part of the valve core 2 and is fixedly connected with the valve core 2, the fixing rod 13 and the valve rod 14 are connected, so that the installation and the disassembly are convenient, the subsequent damage and replacement are carried out, the valve rod 14 is matched above the fixing rod 13, the bottom end of the valve rod 14 is fixedly connected with a plug block 16, the penetrating connection among the fixing rod 13, the plug block 16 and the valve rod 14 is stronger in firmness, and the plug 16 is in plug connection with the fixing rod 13.
In the embodiment, a groove is formed in the top of a fixed rod 13, a plug block 16 matched with the groove is arranged at the bottom of a valve rod 14, after the plug block 16 is inserted into the groove, the fixed rod 13, the groove and the plug block 16 are penetrated through by a bolt to realize fastening, sealing plugs 15 are clamped at two ends of the bolt, the sealing effect is increased by the sealing plugs 15, corrosion of a water source is reduced, the subsequent disassembly problem is influenced, a sealing wrapping layer 17 is fixedly connected to the outer side of a valve core 2, a sealing gasket 3 is fixedly connected to the inner side of a valve seat 4, a buffer effect is realized by the sealing gasket 3 and the sealing wrapping layer 17, when impurities and sand stones are encountered, the elastic back pressure can be realized, the damage to the valve core 2 is prevented, and the sealing gasket 3 and the sealing wrapping layer 17 are in sealing fit;
the both ends of relief pressure valve main part 1 all fixedly connected with ring flange, the ring flange inner wall circumference of the end of intaking all fixedly connected with one end of extension spring 12 provides pulling force through extension spring 12, is convenient for reset effect to damping plate 8. The middle part of the damping plate 8 is provided with a funnel-shaped water outlet 9, a plurality of through holes 10 are uniformly formed in the periphery of the damping plate 8 in the circumferential direction, a matching block 11 is further arranged on a valve seat, close to the damping plate 8, inside the pressure reducing valve main body 1 and used for being in plug-in matching with the water outlet 9, the damping plate 8 can be elastically stretched and limited, continuous vibration is not easy to occur, the problem that the position cannot be fixed is solved, the other end of a tension spring 12 is fixedly connected with the damping plate 8, the water pressure is high, impact effect on the damping plate 8 is achieved, elastic stretching of the tension spring 12 occurs, then the water outlet 9 is in plug-in matching with the matching block 11 to achieve interference effect, strong water pressure for controlling a water source is achieved, water flow after connection is achieved through the damping plate 8, and water source discharge is achieved through the water outlet 9 after circulation.
The top one side fixedly connected with first manometer 5 of relief pressure valve main part 1, the top opposite side fixedly connected with second manometer 7 of relief pressure valve main part 1, look over relief pressure valve main part 1 both ends water pressure condition through first manometer 5 and second manometer 7, the outside intermediate position department rotation of relief pressure valve main part 1 is connected with hand wheel 6. A rotating rod is arranged on the hand wheel 6, one end of the rotating rod is fixedly connected with the hand wheel 6, a spur gear is arranged at the other end of the rotating rod, a spur rack is arranged at the top of the valve rod 14, the spur gear is meshed with the spur rack, and lifting control of the valve rod 14 is achieved through rotating the hand wheel 6.
The working principle of the automatic constant pressure type pressure reducing valve in the embodiment is that when the automatic constant pressure type pressure reducing valve is used, the flange plates at the two ends of the pressure reducing valve body 1 are connected with a water pipe, water flow after connection is realized through a damping plate 8, water source discharge is realized through a water outlet 9 after the water flow is realized, the water source is circulated through the distance between a valve seat 4 and a valve core 2, the water source to be discharged is realized through the other end of the pressure reducing valve body 1, the flow speed of the discharged water source is controlled through the distance between the valve seat 4 and the valve core 2, so that the required discharge pressure is kept, when the water source circulates through the pressure reducing valve body 1, the water pressure is controlled, the outside water pressure of the damping plate 8 is high, the impact effect is realized on the damping plate 8, elastic stretching occurs on a tension spring 12, then the water outlet 9 is in plug fit with a fit block 11, the strong water pressure of the water source is controlled, the impact damage to the pressure of the pressure reducing valve body 1 is reduced, and the discharge water pressure can be slowed down through a through hole 10.
The utility model is not limited to the embodiments described above. The above description of specific embodiments is intended to describe and illustrate the technical aspects of the present utility model, and is intended to be illustrative only and not limiting. Numerous specific modifications can be made by those skilled in the art without departing from the spirit of the utility model and scope of the claims, which are within the scope of the utility model.
Claims (6)
1. An automatic constant pressure type pressure reducing valve comprises a pressure reducing valve body (1) and is characterized in that a valve seat (4) is fixedly connected to the middle position inside the pressure reducing valve body (1), a valve core (2) is arranged between the valve seats (4), a fixed rod (13) is fixedly connected to the middle of the valve core (2), a valve rod (14) is connected to the top of the fixed rod (13), a hand wheel (6) is arranged in the middle of the outer side of the pressure reducing valve body (1), a rotating rod in meshed connection with the valve rod (14) is arranged on the hand wheel (6), flanges are fixedly connected to the two ends of the pressure reducing valve body (1), one end of a tension spring (12) is axially and uniformly fixed to the inner wall of the flange at the inlet end of the pressure reducing valve body (1), a circular damping plate (8) is connected to the other end of the tension spring (12), a funnel-shaped water outlet (9) is arranged in the middle of the damping plate (8), a plurality of through holes (10) are circumferentially and a matching block (11) for being matched with the water outlet (9) in a plugging mode is further arranged on the valve seat (4).
2. The automatic constant pressure type pressure reducing valve according to claim 1, wherein a groove is formed in the top of the fixed rod (13), a plug block (16) which is matched with the groove is arranged at the bottom of the valve rod (14), the plug block (16) penetrates through the fixed rod (13), the groove and the plug block (16) to be fastened after being inserted into the groove, and sealing plugs (15) are clamped at two ends of the bolt.
3. The automatic constant-pressure type pressure reducing valve according to claim 1, wherein the outer side of the valve core (2) is fixedly connected with a sealing wrapping layer (17), the inner sides of the valve seats (4) are fixedly connected with sealing gaskets (3), and the sealing gaskets (3) and the sealing wrapping layer (17) can be in sealing fit.
4. The automatic constant pressure type pressure reducing valve according to claim 1, wherein a first pressure gauge (5) is fixedly connected to one side of the top end of the pressure reducing valve body (1), and a second pressure gauge (7) is fixedly connected to the other side of the top end of the pressure reducing valve body (1).
5. The automatic constant pressure type pressure reducing valve according to claim 1, wherein one end of the rotating rod is fixedly connected with the hand wheel (6), a spur gear is arranged at the other end of the rotating rod, a spur rack is arranged at the top of the valve rod (14), the spur gear is meshed with the spur rack, and lifting control of the valve rod (14) is achieved by rotating the hand wheel (6).
6. An automatic constant pressure relief valve according to claim 1, characterized in that said mating block (11) is arranged on the side of the valve seat (4) close to the damping plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422919639.1U CN223399335U (en) | 2024-11-28 | 2024-11-28 | An automatic constant pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422919639.1U CN223399335U (en) | 2024-11-28 | 2024-11-28 | An automatic constant pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223399335U true CN223399335U (en) | 2025-09-30 |
Family
ID=97150559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422919639.1U Active CN223399335U (en) | 2024-11-28 | 2024-11-28 | An automatic constant pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223399335U (en) |
-
2024
- 2024-11-28 CN CN202422919639.1U patent/CN223399335U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN223399335U (en) | An automatic constant pressure reducing valve | |
| CN112049958B (en) | A horizontal full-diameter two-way eccentric hemispherical valve | |
| CN219994528U (en) | Axial flow type regulating valve for water diversion regulation of hydraulic engineering | |
| CN114576383B (en) | Ball valve capable of improving sealing performance | |
| CN216843197U (en) | Low-temperature pressure division control valve | |
| CN216112391U (en) | Hydraulic valve seat for easy replacement and maintenance | |
| CN214036904U (en) | Filtering decompression automatic valve | |
| CN202301974U (en) | Hydraulic control valve with filtering device | |
| CN212960162U (en) | Multistage pressure regulating's surge damping valve | |
| CN211315121U (en) | Lifting check valve with auxiliary positioning mechanism | |
| CN210531636U (en) | Self-sealing butterfly valve | |
| CN222277514U (en) | A valve seat that is easy to maintain | |
| CN212868611U (en) | Pressure reduction water conservancy control valve with filtering capability | |
| CN219282516U (en) | Piston type adjustable pressure reducing valve | |
| CN223447691U (en) | A concealed stem gate valve | |
| CN222416070U (en) | A pneumatic regulating device for thermal system | |
| CN221170897U (en) | Check valve for preventing spring from swinging and shifting | |
| CN207437850U (en) | Double-disc type metal sealing check valve | |
| CN220268459U (en) | Novel butterfly valve plate | |
| CN222209406U (en) | Valve with high sealing performance | |
| CN218818714U (en) | Water saving fixtures that water supply pressure optimizes | |
| CN223609629U (en) | Pipeline joint with dual leak protection structure | |
| CN218718939U (en) | Leakage-proof valve with protection mechanism | |
| CN219493146U (en) | Double-sealing-ring flow-limiting one-way valve structure | |
| CN215257978U (en) | Novel temperature control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |