CN218152538U

CN218152538U - Pressure reducing valve with filtering function

Info

Publication number: CN218152538U
Application number: CN202221974204.1U
Authority: CN
Inventors: 陈世伟; 陈彪龙; 王燕丽; 黄世梁
Original assignee: Fujian Haiyang Valve Technology Co ltd
Current assignee: Fujian Haiyang Valve Technology Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-12-27
Anticipated expiration: 2032-07-28

Abstract

The utility model relates to a relief pressure valve with filtering capability, including the relief pressure valve body, along radially setting up inlet channel and the exhalant canal in the relief pressure valve body, set up the disk seat that is located between inlet channel and the exhalant canal in the relief pressure valve body, slide and set up and be used for the first valve plate of opening and close with disk seat cooperation control fluid between inlet channel and exhalant canal, set up in first valve plate and upwards wear out the valve rod of relief pressure valve body, can dismantle the last valve cap that sets up on the relief pressure valve body, it is provided with and is used for holding the valve rod and upwards wears out the chamber that holds of relief pressure valve body one end to go up the valve cap, the connection end that is provided with the outside water pipe that can be dismantled to lie in that one end that has exhalant canal on the relief pressure valve body, be provided with the filter equipment who is used for dismantling the airtight exhalant canal after filter equipment between connection end and the relief pressure valve body, that one end that lies in the exhalant canal can dismantle and be provided with the obturator that is used for.

Description

Pressure reducing valve with filtering function

Technical Field

The utility model relates to the technical field of valves, in particular to relief pressure valve with filtering capability.

Background

As is known, a pressure reducing valve is a valve that adjusts to reduce an inlet pressure to a desired outlet pressure and relies on the energy of the medium itself to automatically stabilize the outlet pressure. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, namely, the flow rate and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction, and the pressure at the outlet of the valve can be controlled to be a relatively fixed value within a certain flow range.

Meanwhile, the existing pressure reducing valve cannot filter the passing fluid, and impurities in the fluid can be attached to the inner wall of the pipeline, so that the service life is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, to the above problem, the utility model provides a relief pressure valve with filtering capability.

In order to achieve the technical problem, the solution adopted by the utility model is a pressure reducing valve with filtering function, which comprises a pressure reducing valve body, a water inlet channel and a water outlet channel which are arranged in the pressure reducing valve body along the radial direction, a valve seat which is arranged in the pressure reducing valve body and is positioned between the water inlet channel and the water outlet channel, a first valve plate which is arranged between the water inlet channel and the water outlet channel in a sliding way and is used for controlling the opening and closing of fluid by matching with the valve seat, a valve rod which is arranged on the first valve plate and upwards penetrates out of the pressure reducing valve body, and an upper valve cap which is detachably arranged on the pressure reducing valve body, go up the valve cap and be provided with and be used for holding the valve rod upwards wears out the chamber that holds of that one end of relief pressure valve body, the last connecting end that is located that one end that has water outlet channel of relief pressure valve body can be dismantled and be provided with the connecting end that is used for connecting outside water pipe, connecting the end with be provided with the filter equipment who is arranged in filtering impurity in the fluid between the relief pressure valve body, the valve body internal position that has water outlet channel of relief pressure valve can be dismantled and be provided with and be used for filter equipment dismantles the back inclosed water outlet channel's obturator.

The further improvement is that: the filter device is a filter screen, the inner wall of the pressure reducing valve body is provided with an abutting boss, and the abutting boss and the bottom of the connecting end are abutted and clamped on the edge end of the filter screen.

The further improvement is that: the sealing device comprises a sealing sleeve which is detachably arranged in the pressure reducing valve body through threads, the sealing sleeve is provided with an overflowing channel through which fluid flows, a sliding rod is arranged on the valve seat close to one side of the water outlet channel in the pressure reducing valve body along the radial direction of the pressure reducing valve body, one end of the sliding rod and the pressure reducing valve body are detachably connected, the other end of the sliding rod penetrates through the overflowing channel and the middle of the filter screen, a second valve plate which is used for being matched and sealed with the sealing sleeve to close the overflowing channel is arranged on the sliding rod in a sliding mode, an abutting sliding sleeve is arranged on the sliding rod between the second valve plate and the filter screen in a sliding mode, two ends of the abutting sliding sleeve respectively abut against the side wall of the second valve plate and the side wall of the filter screen, and the abutting sliding sleeve abuts against the second valve plate when the filter screen is installed between the abutting boss and the connecting end and drives the second valve plate to be separated from the sealing sleeve.

The further improvement is that: and a first elastic piece is arranged on the sliding rod and between the second valve plate and the valve seat.

The further improvement is that: and a first sealing element is arranged between the connecting end head and the valve body of the pressure reducing valve.

The further improvement is that: still include the mounting panel, rotate the screw rod, slide, second elastic component, the mounting panel can dismantle set up in it is airtight to go up to be used for on the valve cap hold the chamber, rotate the screw rod pass through screw thread rotatable coupling in just on the mounting panel rotate the screw rod lower extreme and penetrate hold in the chamber, the slide can slide from top to bottom set up in hold in the chamber, rotate the screw rod from the bottom end support in slide upper end terminal surface, the second elastic component set up in the valve rod with between the slide, the second elastic component both ends support respectively in under the slide terminal surface reach the valve rod up end.

The further improvement is that: and a second sealing element is arranged between the upper bonnet and the pressure reducing valve body.

The further improvement is that: and third sealing pieces are arranged in the accommodating cavity between the upper bonnet and the pressure reducing valve body and between the valve rod and the pressure reducing valve body.

The further improvement is that: the pressure reducing valve body lower extreme can be dismantled and be provided with down the valve cap, the holding tank has been seted up to valve cap down, be provided with the third elastic component in the holding tank, the elastic component both ends support respectively in the holding tank bottom surface reaches terminal surface under the valve rod.

The further improvement is that: and the valve plate is provided with an elastic sealing gasket matched with the valve seat.

By adopting the technical scheme, the beneficial effects of the utility model are that: the utility model discloses in be provided with the filter screen, can filter the fluid through in the relief pressure valve body, prevent that the impurity in the fluid from attaching to and influencing the use on the pipeline inner wall.

Further improved is, the utility model discloses meetting pipeline control valve and damaging, when unable normal the closing, can dismantle the link end, dismantle the back filter screen and no longer restrict second valve plate, second valve plate can cooperate with airtight cover and break fluid, close the pipeline, reduce economic loss.

Drawings

FIG. 1 is a schematic view of an external structure of a valve body of a pressure reducing valve according to an embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of the pressure reducing valve body in the embodiment of the present invention.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

Example (c);

referring to fig. 1 to 2, a pressure reducing valve with a filtering function includes a pressure reducing valve body 1, a water inlet channel 2 and a water outlet channel 3 radially disposed in the pressure reducing valve body 1, a valve seat 4 disposed in the pressure reducing valve body 1 and located between the water inlet channel 2 and the water outlet channel 3 (the valve seat 4 is provided with a valve port, which is a known technology and is not described here), a first valve plate 5 slidably disposed between the water inlet channel 2 and the water outlet channel 3 and configured to cooperate with the valve seat 4 to control opening and closing of a fluid (the first valve plate 5 may be disposed on the upper side of the valve seat 4 or may be disposed on the lower side of the valve seat 4, in the drawings of this embodiment, only shown as being disposed at the lower side of the valve seat 4), a valve rod 6 disposed in the first valve plate 5 and extending upward through the pressure reducing valve body 1, and an upper valve cap 7 detachably disposed on the pressure reducing valve body 1 through a thread, the upper valve cap 7 is provided with an accommodating cavity 8 for accommodating the valve rod 6 extending upward through the end of the valve body 1, a connecting end cap 9 for connecting with an external water pipe is detachably disposed at the end of the pressure reducing valve body 1, and an end of the pressure reducing valve body 1 is provided with a filtering device for sealing the water outlet channel 3, and the water filtering device for sealing the water outlet channel 3.

In this embodiment, the filtering device is a filtering net 10, the inner wall of the pressure reducing valve body 1 is provided with an abutting boss, the abutting boss and the bottom of the connecting end 9 are abutted and clamped on the edge end of the filtering net 10, meanwhile, the sealing device comprises a sealing sleeve 11 detachably arranged in the pressure reducing valve body 1 through threads, the sealing sleeve 11 is provided with a flow passage 12 for fluid to flow through, a sliding rod 13 is arranged on the valve seat 4 close to one side of the water outlet passage 3 in the pressure reducing valve body 1 along the radial direction of the pressure reducing valve body 1, one end of the sliding rod 13 is detachably connected with the pressure reducing valve body 1 through threads, the other end of the sliding rod passes through the flow passage 12 and the middle part of the filtering net 10, and a second valve plate 14 for matching with the sealing sleeve 11 to seal the flow passage 12 is slidably arranged on the sliding rod 13, the sliding rod 13 is slidably provided with a propping sliding sleeve 15, two ends of the propping sliding sleeve respectively prop against the side wall of the second valve plate 14 and the side wall of the filter screen 10, the propping sliding sleeve 15 props against the second valve plate 14 and drives the second valve plate 14 to be separated from the sealing sleeve 11 when the filter screen 10 is arranged between the propping boss and the connecting end 9, meanwhile, a first compression spring 16 is arranged between the second valve plate 14 and the valve seat 4 on the sliding rod 13, when the filter screen 10 is arranged between the propping boss and the connecting end 9, the side wall of the filter screen 10 props against the propping sliding sleeve 15, the other end of the propping sliding sleeve 15 props against the second valve plate 14, at the moment, the second valve plate 14 is not matched with the sealing sleeve 11, the fluid can flow out from the flow passage 12 of the sealing sleeve 11; after the filter screen 10 is detached, the second valve plate 14 is driven to slide towards the direction of the sealing sleeve 11 under the action of the fluid and the first compression spring 16, at the moment, the second valve plate 14 and the sealing sleeve 11 are mutually matched to seal the overflowing channel 12, so that the fluid is limited to pass through the overflowing channel 12, therefore, in the embodiment, when the pipeline control valve is damaged and cannot be normally closed, the connecting end 9 can be detached, the filter screen 10 does not limit the second valve plate 14 after detachment, so that the pipeline is closed, the fluid is cut off, and the economic loss is reduced.

In order to prevent the fluid at the joint of the connecting end 9 and the pressure reducing valve body 1 from leaking, a first sealing ring 17 is arranged between the connecting end 9 and the pressure reducing valve body 1.

Still include mounting panel 18, rotate screw rod 19, slide block 20, second elastic component 21 (second compression spring) in this embodiment, mounting panel 18 can dismantle set up in it is airtight to be used for on the last valve cap 7 hold chamber 8, rotate screw rod 19 through screw thread rotatable coupling in on the mounting panel 18 just rotate the screw rod 19 lower extreme and penetrate hold in the chamber 8, slide block 20 can slide from top to bottom set up in hold chamber 8, rotate screw rod 19 upper and lower end support in slide block 20 up end, second elastic component 21 set up in valve rod 6 with between the slide block 20, second elastic component 21 both ends support respectively in slide block 20 down the terminal surface and valve rod 6 up end.

As shown in the figure, in order to prevent the leakage, go up the bonnet 7 with be provided with second sealing washer 22 between the relief pressure valve body 1, it lies in to hold in the chamber 8 go up the bonnet 7 with between the relief pressure valve body 1 and be located the valve rod 6 with be provided with the sealed 23 of third between the relief pressure valve body 1, promptly the sealed 23 of third is provided with and is located go up the bonnet 7 with first sealing between the relief pressure valve body 1, integrated into one piece are located in the first sealing be located the valve rod 6 with second sealing between the relief pressure valve body 1.

Meanwhile, in this embodiment, the lower end of the pressure reducing valve body 1 can be detachably provided with a lower valve cap 26, the lower valve cap 26 is provided with a receiving groove 27, a third elastic member 24 (a third compression spring) is arranged in the receiving groove 27, and two ends of the third elastic member 24 respectively abut against the bottom surface of the receiving groove 27 and the lower end surface of the valve rod 6.

Be provided with on the valve plate be used for with valve seat 4 complex elastic sealing pad 25, elastic sealing pad 25 is in the valve plate with when the valve seat 4 cooperatees, elastic sealing pad 25 can contact valve seat 4 earlier to play the effect of buffering.

The working principle is as follows:

when the connecting end 9 is installed: firstly, the sliding rod 13 is installed on the valve seat 4 through threads, so that the sliding rod is arranged along the radial direction of the valve body, then the first compression spring 16 is sleeved on the sliding rod 13, then the second valve plate 14 is sleeved on the sliding rod 13, so that the side wall of the sliding rod abuts against the first compression spring 16, then the closed sleeve 11 is installed at one end, located at the water outlet channel 3, of the pressure reducing valve body 1 through threads, so that the other end of the sliding rod 13 penetrates through the overflowing channel 12 of the closed sleeve 11, then the filter screen 10 is sleeved on the end, penetrating through the overflowing channel 12, of the sliding rod 13, finally the connecting end head 9 is installed through threads, at the moment, the bottom of the connecting end head 9 abuts against the edge end of the filter screen 10, so that the filter screen 10 abuts against one side of the valve seat 4 and abuts against the closed sleeve 11, and then installation is completed.

The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.

Claims

1. A pressure reducing valve with a filtering function comprises a pressure reducing valve body, a water inlet channel and a water outlet channel which are arranged in the pressure reducing valve body along the radial direction, a valve seat which is arranged in the pressure reducing valve body and is positioned between the water inlet channel and the water outlet channel, a first valve plate which is arranged between the water inlet channel and the water outlet channel in a sliding way and is used for controlling the opening and closing of fluid by matching with the valve seat, a valve rod which is arranged on the first valve plate and upwards penetrates out of the pressure reducing valve body, and an upper valve cap which is detachably arranged on the pressure reducing valve body, go up the valve cap and be provided with and be used for holding the valve rod upwards wears out the chamber that holds of that one end of relief pressure valve body, its characterized in that: the pressure reducing valve is characterized in that a connecting end used for being connected with an external water pipe is detachably arranged at one end with a water outlet channel on the pressure reducing valve body, a filtering device used for filtering impurities in fluid is arranged between the connecting end and the pressure reducing valve body, and a sealing device used for sealing the water outlet channel after the filtering device is detached is detachably arranged at one end with the water outlet channel in the pressure reducing valve body.

2. The pressure reducing valve having a filtering function according to claim 1, wherein: the filter device is a filter screen, the inner wall of the pressure reducing valve body is provided with an abutting boss, and the abutting boss and the bottom of the connecting end are abutted and clamped on the edge end of the filter screen.

3. A pressure reducing valve having a filtering function according to claim 2, wherein: the sealing device comprises a sealing sleeve which is detachably arranged in the pressure reducing valve body through threads, the sealing sleeve is provided with an overflowing channel through which fluid flows, the pressure reducing valve body is close to one side of the water outlet channel, the valve seat is arranged on the edge of the pressure reducing valve body in the radial direction, a sliding rod is arranged at one end of the sliding rod and can be detachably connected with the pressure reducing valve body, the other end of the sliding rod penetrates through the overflowing channel and the middle part of the filter screen, the sliding rod can be slidably arranged on the sliding rod and is used for being matched and sealed with the sealing sleeve, a second valve plate of the overflowing channel is arranged, the sliding rod is arranged on the second valve plate and can be slidably arranged between the second valve plate and the filter screen, two ends of the sliding rod respectively abut against the side wall of the second valve plate and the abutting sliding sleeve of the side wall of the filter screen, and the abutting sliding sleeve is arranged on the abutting boss and abuts against the second valve plate and drives the sealing sleeve to be separated from the sealing sleeve.

4. A pressure reducing valve having a filtering function according to claim 3, wherein: and a first elastic piece is arranged on the sliding rod and between the second valve plate and the valve seat.

5. A pressure reducing valve having a filtering function according to claim 3, wherein: and a first sealing element is arranged between the connecting end head and the valve body of the pressure reducing valve.

6. The pressure reducing valve having a filtering function according to claim 1, wherein: still include the mounting panel, rotate the screw rod, slide, second elastic component, the mounting panel can dismantle set up in it is airtight to go up to be used for on the valve cap hold the chamber, rotate the screw rod pass through screw thread rotatable coupling in just on the mounting panel rotate the screw rod lower extreme and penetrate hold in the chamber, the slide can slide from top to bottom set up in hold in the chamber, rotate the screw rod from the bottom end support in slide upper end terminal surface, the second elastic component set up in the valve rod with between the slide, the second elastic component both ends support respectively in under the slide terminal surface reach the valve rod up end.

7. The pressure reducing valve having a filtering function according to claim 1, wherein: and a second sealing element is arranged between the upper bonnet and the pressure reducing valve body.

8. The pressure reducing valve having a filtering function according to claim 1, wherein: and third sealing pieces are arranged in the accommodating cavity between the upper bonnet and the pressure reducing valve body and between the valve rod and the pressure reducing valve body.

9. The pressure reducing valve having a filtering function according to claim 1, wherein: the pressure reducing valve body lower extreme can be dismantled and be provided with down the valve cap, the holding tank has been seted up to lower valve cap, be provided with the third elastic component in the holding tank, the elastic component both ends support respectively in holding tank bottom surface reaches terminal surface under the valve rod.

10. The pressure reducing valve having a filtering function according to claim 1, wherein: and the valve plate is provided with an elastic sealing gasket matched with the valve seat.