CN216158389U

CN216158389U - Pressure stabilizing joint with pressure reducing valve

Info

Publication number: CN216158389U
Application number: CN202122141868.1U
Authority: CN
Inventors: 陈添育; 陈雪瑜
Original assignee: Guli Xiamen Technology Co Ltd
Current assignee: Guli Xiamen Technology Co Ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-04-01
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a pressure stabilizing joint with a pressure reducing valve, which is characterized in that: including connecting body, relief pressure valve, first sealing member and second sealing member, it is provided with the fluid passage who link up along the axis to connect the body inside, relief pressure valve detachably install in the fluid passage, the through-hole has been seted up on the lateral wall of relief pressure valve, connect on the corresponding position of body lateral wall seted up with the exhaust hole that the through-hole is linked together, first sealing member establish at relief pressure valve one end and with the sealed cooperation of relief pressure valve, the second sealing member establish at the relief pressure valve other end and with the sealed cooperation of relief pressure valve. The utility model can effectively prevent the fluid from leaking from the exhaust hole by arranging the first sealing element and the second sealing element, and has the advantages of reasonable structural design, convenient use and installation, good pressure reduction effect and the like.

Description

Pressure stabilizing joint with pressure reducing valve

Technical Field

The utility model relates to the technical field of fluid pressure stabilization, in particular to a pressure stabilization connector with a pressure reducing valve.

Background

In some fluid joints, because the joint strength and the pressure bearing strength of the working pipe have certain ratings, the fluid pressure from the input end of the joint may exceed the pressure bearing limit of the pipe. To protect the working pipe or cavity from pressure surges from the input, a pressure relief valve needs to be installed in the joint. The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and automatically keeps the outlet pressure stable by means of the energy of the medium. In the conventional pressure reducing valve, one to many sealing grooves are formed in the side edge of a valve body, and the annular sealing ring arranged in the sealing groove is used for blocking fluid and an exhaust hole, so that the fluid is prevented from leaking outwards from the exhaust hole. Above-mentioned sealed mode can lead to the structure of relief pressure valve body to become relatively complicated, and the cost of manufacture is higher, and when installing the relief pressure valve to steady voltage in the joint, phenomenon such as landing appears easily in the ring packing moreover, causes sealed inefficacy scheduling problem to take place.

Disclosure of Invention

Aiming at the technical problems in the prior art, the utility model aims to provide a pressure stabilizing joint with a pressure reducing valve, which has the advantages of simple structure, convenience in installation and good sealing effect.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a pressure stabilizing joint with a pressure reducing valve comprises a joint body, the pressure reducing valve, a first sealing element and a second sealing element. A through fluid channel is arranged in the connector body along the axis, and the pressure reducing valve is detachably mounted in the fluid channel. The side wall of the pressure reducing valve is provided with a through hole, and the corresponding position of the side wall of the joint body is provided with an exhaust hole communicated with the through hole. The first sealing element is arranged at one end of the pressure reducing valve and is in sealing fit with the pressure reducing valve, and the second sealing element is arranged at the other end of the pressure reducing valve and is in sealing fit with the pressure reducing valve.

Further, an annular partition plate is arranged inside the fluid channel, the pressure reducing valve is installed on the annular partition plate, and one side of the second sealing piece is in sealing fit with the annular partition plate.

Furthermore, the pressure reducing valve comprises a valve body, a valve core assembly, a water inlet end cover and a water outlet end cover, wherein the inside of the valve body is divided into a water inlet cavity and an air cavity through a horizontal partition plate, and the water inlet cavity penetrates through the upper end part of the valve body. The water inlet end cover is installed at the end part of the water inlet cavity in a sealing mode, and the water outlet end cover is installed at the end part of the air cavity in a sealing mode. A decompression cavity is formed between the valve core assembly and the valve body in a surrounding mode, and the through hole is formed in the side wall of the decompression cavity.

The valve core assembly comprises a valve core, an elastic body, an inner sealing piece and an outer sealing piece. The case include integrated into one piece's valve post and valve cap, the valve cap establish in horizontal baffle lower part, and outer wall face passes through outer seal and valve body internal face sealing connection. The elastic body is sleeved on the outer side of the valve column, and two ends of the elastic body are respectively abutted to the horizontal partition plate and the valve cap. The valve column penetrates through the horizontal partition plate, and the outer wall surface of the valve column is in sealing fit with the horizontal partition plate through the inner sealing piece.

Furthermore, a water flow channel which is respectively communicated with the valve post and the valve cap is arranged in the valve core along the axis. The water inlet end cover is provided with a plurality of water inlet holes communicated with the water flow channel, the plurality of water inlet holes are respectively arranged in a staggered mode with the water flow channel, and the valve post moves upwards to be in contact with the water inlet end cover to block the water inlet holes and the water flow channel. The water outlet end cover is in sealing fit with the valve body and is provided with a water outlet hole communicated with the water flow channel, the top of the water outlet end cover is provided with a flow channel groove with the cross section size larger than that of the water outlet hole, and the bottom of the flow channel groove is communicated with the water outlet hole.

In one embodiment, the outer sealing element is a sealing ring integrally formed on the outer side of the bonnet, and the inner sealing element is a sealing sheet integrally formed with the horizontal partition.

In another embodiment, the outer sealing element is a first Y-shaped sealing ring, a sealing ring groove is formed in the outer side of the bonnet, and the first Y-shaped sealing ring is detachably mounted in the sealing ring groove. The inner sealing element is a second Y-shaped sealing ring.

Further, still include the supporting seat, the both sides of supporting seat respectively with water inlet end cover and horizontal baffle looks butt, the supporting seat inboard is equipped with the inside seal groove, second Y type sealing washer detachably install in the inside seal groove.

Preferably, in order to better block water inflow when the pressure reducing valve is closed, a sealing hole is formed in the middle of the water inflow end cover, a sealing gasket is installed in the sealing hole, and the sealing gasket is located right above the valve column and is larger than the valve column in cross section size.

Preferably, the first sealing element and the second sealing element are both annular sealing rings, and the elastic body is a spring or an elastic rubber pad.

The utility model has the following beneficial effects: the pressure stabilizing connector with the pressure reducing valve has the advantages of simple structure, low manufacturing cost, convenience in use and installation, good pressure reducing effect and the like, and can effectively prevent fluid from leaking from the exhaust hole by arranging the first sealing piece and the second sealing piece. The variable through-flow port is formed by the valve core assembly, the water inlet end cover and the water outlet end cover, and the variable through-flow port is changed in the balance process of the elastic body and the water pressure, so that pressure difference is formed between the input end and the output end, the pressure of the pipeline at the output end is limited, and a good pressure reduction effect is achieved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an exploded view of the components of the pressure-stabilizing joint according to the first embodiment.

Fig. 3 is a schematic structural diagram of the voltage stabilizing joint of the first embodiment in an initial state.

Fig. 4 is a schematic structural diagram of the pressure stabilizing joint of the first embodiment in a pressure reducing state.

Fig. 5 is a schematic structural diagram of the surge tank in the closed state according to the first embodiment.

Fig. 6 is a schematic view of a valve core according to the first embodiment under a force.

Fig. 7 is a schematic view of the internal structure of the pressure reducing valve of the pressure stabilizing joint according to the second embodiment.

Fig. 8 is a schematic structural view of the valve body according to the second embodiment.

Fig. 9 is a schematic view of a valve core structure of the second embodiment.

Fig. 10 is a schematic view of the internal structure of the pressure reducing valve of the pressure stabilizing joint according to the third embodiment.

Description of the main component symbols: 1. a connector body; 10. an annular partition plate; 100. an exhaust hole; 101. a fluid input; 102. a fluid output; 2. a pressure reducing valve; 20. a decompression chamber; 200. a through hole; 21. a valve body; 211. a horizontal partition plate; 22. a water inlet end cover; 220. a water inlet hole; 221. sealing the hole; 23. a water outlet end cover; 230. a water outlet hole; 231. a flow channel groove; 24. a valve core; 240. a water flow channel; 241. a spool; 242. a bonnet; 243. a seal ring groove; 25. an elastomer; 26. an inner seal; 260. an inner seal groove; 261. a supporting seat; 262. a second Y-shaped seal ring; 27. an outer seal; 31. a first seal member; 32. a second seal member; 4. and a gasket.

Detailed Description

The utility model is further described with reference to the following drawings and detailed description.

Example one

As shown in fig. 1 to 6, the present embodiment discloses a pressure stabilizing joint with a pressure reducing valve, which includes a joint body 1, a pressure reducing valve 2, a first sealing member 31, and a second sealing member 32. A through fluid passage is provided along the axis inside the joint body 1, and the pressure reducing valve 2 is detachably mounted in the fluid passage. The side wall of the pressure reducing valve 2 is provided with a through hole 200, and the corresponding position of the side wall of the joint body 1 is provided with an exhaust hole 100 communicated with the through hole 200. A first seal 31 is provided at one end of the pressure reducing valve 2 and is in sealing engagement with the pressure reducing valve 2, and a second seal 32 is provided at the other end of the pressure reducing valve 2 and is in sealing engagement with the pressure reducing valve 2. Preferably, the first seal 31 and the second seal 32 are both annular seal rings.

One end of the fluid channel is a fluid input 101 and the other end is a fluid output 102. The interior of the fluid passage is provided with an annular partition 10, the pressure reducing valve 2 is mounted on the annular partition 10, and one side of the second sealing member 32 is in sealing engagement with the annular partition 10.

The reducing valve 2 comprises a valve body 21, a valve core assembly, a water inlet end cover 22 and a water outlet end cover 23, the inside of the valve body 21 is divided into a water inlet cavity and an air cavity through a horizontal partition plate 211, the water inlet cavity penetrates through the upper end part of the valve body 21, the water inlet end cover 22 is installed at the end part of the water inlet cavity in a sealing mode, the water outlet end cover 23 is installed at the end part of the air cavity in a sealing mode, a reducing cavity 20 is formed between the valve core assembly and the valve body 21 in a surrounding mode, and a through hole 200 is formed in the side wall of the reducing cavity 20.

The spool assembly includes a spool 24, an elastomeric body 25, an inner seal 26, and an outer seal 27. The valve body 24 includes a stem 241 and a bonnet 242 formed integrally, the bonnet 242 is provided at a lower portion of the horizontal partition 211, and an outer wall surface is sealingly connected to an inner wall surface of the valve body 21 by an outer packing 27. The elastic body 25 is sleeved outside the valve post 241, and two ends of the elastic body are respectively abutted against the horizontal partition 211 and the valve cap 242. Preferably, the elastic body 25 is a spring or an elastic rubber pad. The spool 241 passes through the horizontal partition 211 and the outer wall surface is in sealing engagement with the horizontal partition 211 by means of the inner seal 26.

A water flow passage 240 is formed inside the valve body 24 along the axis and passes through the valve post 241 and the valve cap 242. The water inlet end cover 22 is provided with a plurality of water inlet holes 220 communicated with the water flow channel 240, the plurality of water inlet holes 220 are respectively arranged in a staggered manner with the water flow channel 240, and the valve post 241 moves upwards to be in contact with the water inlet end cover 22 to block the water inlet holes 220 and the water flow channel 240. The water outlet end cover 23 is in sealing fit with the valve body 21, a water outlet hole 230 communicated with the water flow channel 240 is formed in the water outlet end cover 23, a flow channel groove 231 with the cross section size larger than that of the water outlet hole 230 is formed in the top of the water outlet end cover 23, and the bottom of the flow channel groove 231 is communicated with the water outlet hole 230.

In this embodiment, the outer sealing element 27 is a first Y-shaped sealing ring, a sealing ring groove 243 is formed on the outer side of the bonnet 242, and the first Y-shaped sealing ring is detachably installed in the sealing ring groove 243. The inner seal 26 is a second Y-ring 262.

The water inlet end cover 22 and the horizontal partition plate 211 are connected with each other through a support seat 261, two sides of the support seat 261 are respectively abutted to the water inlet end cover 22 and the horizontal partition plate 211, an inner sealing groove 260 is formed in the inner side of the support seat 261, and a second Y-shaped sealing ring 262 is detachably mounted in the inner sealing groove 260.

The working principle of the embodiment is as follows: the second sealing element 32 is pre-installed at the bottom of the fluid input end 101 in the joint body 1, the assembled pressure reducing valve 2 is installed in the fluid input end 101 in the joint body 1, the first sealing element 31 is installed at the top of the pressure reducing valve 2, and then the assembled pressure stabilizing joint is respectively butted with a water inlet working pipeline and a water outlet working pipeline to complete installation.

As shown in fig. 3 and 6, in the initial state, the elastic body 25 has a pre-pressure F1, the fluid flows in through the inlet hole 220, passes through the water flow channel 240 in the middle of the valve core 24 to the bottom end position of the valve core 24, and the water pressure has an upward force F2 on the valve core 24. When the acting force F2 of the water pressure is smaller than the pre-pressure F1 of the elastic body 25, the valve core 24 is not enough to be pushed to move, and the valve core 24 is kept in the initial state.

As shown in fig. 4, as the fluid flows in, the fluid pressure at the input end increases continuously, when the pressure F2 acting on the bottom end of the valve core 24 is greater than the pre-pressure F1 of the elastic body 25, the valve core 24 moves upward under the pressure, the intersection (variable flow port) of the water flow channel 240 and the water inlet side of the pressure reducing valve 2 becomes smaller, so that the pressure at the output end decreases, and when the water pressure F2 of the cavity at the output end is balanced with the force F1 of the elastic body 25, the valve core 24 stops operating, and the balance is achieved.

As shown in fig. 5, when the output end is closed, the spool 24 moves upward under the pressure generated by the fluid, the top of the spool 241 contacts the water inlet end cap 22, the variable flow port is closed, and the pressure at the output end is stabilized at the value P, thereby performing a limit protection function. When the output port is reopened, the output line pressure decreases, and when the force F2 exerted on the spool 24 is less than the spring 25 force F1, the spool 24 moves downward and the variable flow port reopens, reaching a new equilibrium.

Example two

As shown in fig. 7-9, the present embodiment discloses a pressure stabilizing joint with a pressure reducing valve, and the present embodiment differs from the first embodiment only in that: the outer seal 27 is a seal ring integrally formed on the outer side of the bonnet 242, and the inner seal 26 is a seal piece integrally formed with the horizontal partition 211. The rest of the structure of the present embodiment is the same as that of the first embodiment.

This embodiment reduces the number of parts and is more convenient to install and use by designing the outer seal 27 and the bonnet 242 as an integral structure and the inner seal 26 and the horizontal partition 211 as an integral structure.

EXAMPLE III

As shown in fig. 10, the present embodiment discloses a pressure stabilizing joint with a pressure reducing valve, and the present embodiment is different from the first embodiment only in that: the middle part of the water inlet end cover 22 is provided with a sealing hole 221, a sealing gasket 4 is arranged in the sealing hole 211, and the sealing gasket 4 is positioned right above the valve column 241 and has a cross section size larger than that of the valve column 241. The rest of the structure of the present embodiment is the same as that of the first embodiment.

In this embodiment, by opening the sealing hole 221 on the water inlet end cover 22 and installing the sealing gasket 4 in the sealing hole 211, when the pressure reducing valve 2 is closed, the spool 241 moves upward to contact with the sealing gasket 4 to block the water inlet hole 220 and the water flow channel 240, and compared with the sealing matching of the spool 241 and the water inlet end cover 22, the blocking effect of this embodiment is better.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a take steady voltage of relief pressure valve connects which characterized in that: including connecting body, relief pressure valve, first sealing member and second sealing member, it is provided with the fluid passage who link up along the axis to connect the body inside, relief pressure valve detachably install in the fluid passage, the through-hole has been seted up on the lateral wall of relief pressure valve, connect on the corresponding position of body lateral wall seted up with the exhaust hole that the through-hole is linked together, first sealing member establish at relief pressure valve one end and with the sealed cooperation of relief pressure valve, the second sealing member establish at the relief pressure valve other end and with the sealed cooperation of relief pressure valve.

2. A pressure stabilizing fitting with a pressure relief valve as claimed in claim 1, wherein: an annular partition plate is arranged in the fluid channel, the pressure reducing valve is installed on the annular partition plate, and one side of the second sealing piece is in sealing fit with the annular partition plate.

3. A pressure stabilizing fitting with a pressure relief valve as claimed in claim 1, wherein: the relief pressure valve include valve body, case subassembly, water inlet end cover and play water end cover, intake antrum and air chamber are separated into through horizontal baffle to valve body inside, and the intake antrum link up the upper end of valve body, water inlet end cover seal installation at the intake antrum tip, play water end cover seal installation at air chamber tip, surround between case subassembly and the valve body and form a decompression chamber, the through-hole set up on the lateral wall in decompression chamber.

4. A pressure stabilizing fitting with a pressure reducing valve as claimed in claim 3, wherein: case subassembly include case, elastomer, inner seal and outer seal, the case include integrated into one piece's valve post and valve cap, the valve cap establish in the horizontal partition plate lower part, and outer wall passes through outer seal and valve body internal face sealing connection, the elastomer cover establish in the valve post outside and both ends respectively with horizontal partition plate and valve cap looks butt, the valve post passes horizontal partition plate, and outer wall passes through inner seal with horizontal partition plate seal fit.

5. A pressure regulator fitting with a pressure relief valve as defined in claim 4, wherein: the case is inside to have seted up along the axis and to link up respectively the rivers passageway of valve post and valve cap, the end cover of intaking on seted up a plurality of with the inlet opening that rivers passageway is linked together, a plurality of inlet opening respectively with rivers passageway setting of staggering, the valve post rebound to with the contact of the end cover of intaking realize blocking of inlet opening and rivers passageway, the play water end cover with the valve body seals up the cooperation, go out the end cover on seted up with the apopore that rivers passageway is linked together, it is equipped with a cross section size and is greater than to go out the end cover top the runner recess of apopore cross section size, the bottom of runner recess with the apopore is linked together.

6. A pressure regulator fitting with a pressure relief valve as defined in claim 5, wherein: the external seal spare be integrated into one piece the sealing ring in the valve cap outside, the interior sealing member be with horizontal baffle integrated into one piece's gasket.

7. A pressure regulator fitting with a pressure relief valve as defined in claim 5, wherein: the outer sealing member be first Y type sealing washer, the sealing washer groove has been seted up in the outside of valve cap, first Y type sealing washer detachably install the sealing washer inslot, the inner sealing member be second Y type sealing washer.

8. A pressure stabilizing fitting with a pressure reducing valve as claimed in claim 7, wherein: the water inlet end cover is connected with the water inlet end cover through a first Y-shaped sealing ring, the water inlet end cover is connected with the water inlet end cover through a second Y-shaped sealing ring, and the water inlet end cover is connected with the water inlet end cover.

9. A pressure stabilizing fitting with a pressure reducing valve as claimed in claim 7, wherein: the middle part of the water inlet end cover is provided with a sealing hole, a sealing gasket is arranged in the sealing hole, and the sealing gasket is positioned right above the valve column and has a cross section size larger than that of the valve column.

10. A pressure stabilizing joint with a pressure reducing valve according to any one of claims 4 to 9, wherein: the first sealing element and the second sealing element are both annular sealing rings, and the elastic body is a spring or an elastic rubber pad.