CN217559120U

CN217559120U - Pressure limiting valve with switch and filtering function

Info

Publication number: CN217559120U
Application number: CN202122740933.2U
Authority: CN
Inventors: 苏宝基
Original assignee: Guangdong Shinuo Sanitary Ware Technology Co ltd
Current assignee: Guangdong Shinuo Sanitary Ware Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-10-11
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a pressure limiting valve with switch and filtering function, which comprises a valve body, wherein a water inlet and a water outlet are respectively arranged at two ends of the valve body along the x-axis direction, a first cavity and a second cavity are respectively arranged inside the valve body, an adjusting rod is arranged in the first cavity, a filter screen is arranged at the bottom of the adjusting rod, a fifth nut is sleeved at the top of the adjusting rod, a water outlet core is arranged at the inner side of the second cavity, a spring is arranged at the top of the water outlet core, a third nut is arranged on the spring, and an adjusting screw is arranged at the top of the third nut; when the water pressure at the water inlet end changes, the spring can extend and shorten to stabilize the change of the water pressure, and the purpose that the water outlet pressure is ensured in a certain range is achieved. The utility model is used for the bathroom field has the filtration impurity, can close the water and be convenient for maintain the case and the invariable advantage of pressure maintenance.

Description

Pressure limiting valve with switch and filtering function

Technical Field

The utility model relates to a pressure limiting valve technical field especially relates to take switch and filtering capability's pressure limiting valve.

Background

The pressure regulating valve is also called self-operated balance valve, flow control valve, flow controller, dynamic balance valve and flow balance valve, and is a visual, simple and convenient flow regulating and controlling device. The flow regulating valve is mainly applied to: in the water systems of central heating (cooling) and the like, the flow of a pipe network is distributed according to needs, the hydraulic imbalance of the water systems is eliminated, and the problem of uneven cooling and heating is solved.

The existing pressure regulating valve has single function, can not filter impurities in water to cause valve core blockage, and can not control the pressure to be in a constant state, so that the pressure limiting valve with the switch and the filtering function is provided.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a pressure limiting valve with a switch and a filtering function, when the water pressure at the water inlet end is changed, a spring can be extended and shortened to stabilize the change of the water pressure, the water outlet pressure is ensured within a certain range, a regulating screw is rotated to drive a third nut to lift, and the pre-pressure of the third nut pressing spring is adjustable, thereby achieving the purpose of adjusting the water pressure; water can be shut off, and the valve core can be maintained; the pressure remains constant.

In order to solve the technical problem, the utility model provides a following technical scheme:

the pressure limiting valve with the switch and the filtering function comprises a valve body, wherein a water inlet and a water outlet are respectively formed in two ends of the valve body along the x-axis direction, a first cavity and a second cavity are respectively formed in the valve body, the first cavity is communicated with the second cavity, the water inlet is communicated with the first cavity, the water outlet is communicated with the second cavity, an adjusting rod is arranged in the first cavity along the direction parallel to the y-axis direction, a filter screen is arranged at the bottom of the adjusting rod, and a fifth nut is sleeved at the top of the adjusting rod; along being on a parallel with y axle direction, the second cavity inboard is equipped with out the water core, it is equipped with the spring to go out water core top, the spring top is equipped with the third nut, the third nut top is equipped with adjusting screw, there is the shaft shoulder at adjusting screw's top, the shaft shoulder top is at second cavity inner wall top, just screw in spring inner space behind adjusting screw and the cooperation of third nut.

Preferably, it includes the inner core to go out the water core, the inner core inboard is equipped with the piston rod, piston rod top cover is equipped with the diaphragm, the inboard top of diaphragm is equipped with supports the lid, it is equipped with first nut to support the caping portion, just first nut runs through and supports lid, diaphragm and piston rod spiro union, piston rod bottom cover is equipped with the cushion, the cushion bottom is equipped with the second nut, just second nut and piston rod spiro union.

Preferably, still include the fifth nut, the junction of fifth nut and regulating rod is equipped with fifth O type sealing washer and sixth O type sealing washer respectively, valve body bottom one side spiro union has the fourth nut, the junction of fourth nut and valve body is equipped with fourth O type sealing washer, just the fourth nut is in the filter screen bottom.

Preferably, the top of the second cavity is connected with a gland in a threaded manner, the top of the first cavity is connected with a pulling cap in a threaded manner, the top of the gland is provided with a second nameplate, the top of the pulling cap is provided with a first nameplate, and the top of the adjusting screw penetrates through the top of the inner side of the second nameplate.

Preferably, a first O-shaped sealing ring and a second O-shaped sealing ring are respectively sleeved at the joint of the bottom of the top of the outer side of the inner core and the second cavity, and a third O-shaped sealing ring is arranged at the joint of the piston rod and the diaphragm.

Preferably, a one-way valve is arranged on the inner side of the water outlet and used for preventing water backflow

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

when the water pressure at the water inlet end changes, the spring can extend and shorten to stabilize the change of the water pressure, the water outlet pressure is ensured within a certain range, the adjusting screw is rotated to drive the third nut to lift, the pre-pressure of the third nut pressing spring is adjustable, and therefore the purpose of adjusting the water pressure is achieved, and impurities can be filtered; if the constant pressure valve component needs to be maintained and replaced, the adjusting rod is rotated to enable the bottom of the adjusting rod to seal the water inlet, the valve core can be maintained by controlling water to be closed by the adjusting rod, and a water path main switch does not need to be closed on a pipeline; the pressure remains constant.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the water flow direction of the present invention;

FIG. 3 is a schematic diagram of the overall explosion structure of the present invention;

fig. 4 is a schematic view of the explosion structure of the water outlet core of the present invention;

wherein: 1. a valve body; 2. a first nut; 3. an inner core; 4. a membrane; 5. a piston rod; 6. A support cover; 7. a second nut; 8. a rubber pad; 9. a first O-ring seal; 10. a second O-ring seal; 11. a third O-shaped sealing ring; 12. a fourth O-shaped sealing ring; 13. a fifth O-shaped sealing ring; 14. a sixth O-ring seal; 15. a spring; 16. a third nut; 17. adjusting screws; 18. a fourth nut; 19. filtering with a screen; 20. a fifth nut; 21. a first nameplate; 22. Adjusting a rod; 23. a one-way valve; 24. pulling the cap; 25. a gland; 26. a second nameplate; 27. and a water outlet core.

Detailed Description

The following embodiments of the present invention are described in detail with reference to the accompanying drawings, which are used for describing the technical solutions of the present invention clearly and completely.

Example (b):

as shown in fig. 1, 2 and 3, the pressure limiting valve with switch and filtering functions comprises a valve body 1, a water inlet 101 and a water outlet 102 are respectively arranged at two ends of the valve body 1 along an x-axis direction, a first cavity and a second cavity are respectively arranged inside the valve body 1, the water inlet 101 is communicated with the first cavity, the water outlet 102 is communicated with the second cavity, an adjusting rod 22 is arranged in the first cavity along a direction parallel to a y-axis, a filter screen 19 is arranged at the bottom of the adjusting rod 22, and a fifth nut 20 is sleeved at the top of the adjusting rod 22; along the direction parallel to the y axis, the inner side of the second cavity is provided with a water outlet core 27, the top of the water outlet core 27 is provided with a spring 15, the top surface of the spring 15 is provided with a third nut 16, the top of the third nut 16 is provided with an adjusting screw 17, the top of the adjusting screw 17 is provided with a shaft shoulder 171, the shaft shoulder 171 is propped against the top of the inner wall of the second cavity, and the adjusting screw 17 is screwed into the inner space of the spring 15 after being matched with the third nut 16;

the water outlet core 27 comprises an inner core 3, a piston rod 5 is arranged on the inner side of the inner core 3, a diaphragm 4 is sleeved on the top of the piston rod 5, a support cover 6 is arranged on the top of the inner side of the diaphragm 4, a first nut 2 is arranged on the top of the support cover 6, the first nut 2 penetrates through the support cover 6, the diaphragm 4 is in threaded connection with the piston rod 5, a rubber pad 8 is sleeved on the bottom of the piston rod 5, a second nut 7 is arranged on the bottom of the rubber pad 8, and the second nut 7 is in threaded connection with the piston rod 5; when the water pressure at the water inlet end changes, the spring 15 can extend and shorten to stabilize the change of the water pressure, the water outlet pressure is ensured to be in a certain range, the adjusting screw 17 is rotated to drive the third nut 16 to lift, the precompression of the third nut 16 pressing the spring is adjustable, and the purpose of adjusting the water pressure is achieved, and the water pressure adjusting device is characterized in that 1, impurities can be filtered; 2. water can be shut off, and the valve core can be maintained; 3. the pressure remains constant.

A fifth O-shaped sealing ring 13 and a sixth O-shaped sealing ring 14 are respectively arranged at the joint of the fifth nut 20 and the adjusting rod 22, a fourth nut 18 is screwed at one side of the bottom of the valve body 1, a fourth O-shaped sealing ring 12 is arranged at the joint of the fourth nut 18 and the valve body 1, and the fourth nut 18 is positioned at the bottom end of the filter screen 19; through the designed fifth O-shaped sealing ring 13, the sixth O-shaped sealing ring 14 and the filter screen 19, the sealing performance of the joint is ensured.

The top of the second cavity is in threaded connection with a gland 25, the top of the first cavity is in threaded connection with a pull cap 24, the top of the gland 25 is provided with a second nameplate 26, the top of the pull cap 24 is provided with a first nameplate 21, and the top of the adjusting screw 17 penetrates through the top of the inner side of the second nameplate 26; the parts in the first cavity and the second cavity are convenient to fix through the designed pull cap 24 and the second nameplate 26.

A first O-shaped sealing ring 9 and a second O-shaped sealing ring 10 are respectively sleeved at the joint of the bottom of the top of the outer side of the inner core 3 and the second cavity, and a third O-shaped sealing ring 11 is arranged at the joint of the piston rod 5 and the diaphragm 4; the inner core 3 is conveniently installed, and the sealing performance of the joint is improved.

The inside of the water outlet is provided with a one-way valve 23, and the one-way valve 23 is used for preventing water from flowing back.

When the water pressure at the water inlet end changes, the spring 15 can extend and shorten to stabilize the change of the water pressure, the water outlet pressure is ensured within a certain range, the adjusting screw 17 is rotated to drive the third nut 16 to lift, and the pre-pressure of the third nut 16 pressing the adjusting spring 17 can be adjusted, so that the aim of adjusting the water pressure is fulfilled, and the water filter is characterized in that impurities can be filtered; the water can be shut off and the valve core can be maintained; the pressure remains constant.

The embodiments of the present invention are not exhaustive, and for those skilled in the art, minor modifications, substitutions and variations can be made on the embodiments without increasing creative efforts, which belong to the protection scope of the present invention.

Claims

1. Take switch and filtering capability's pressure limiting valve, including valve body (1), along x axle direction, valve body (1) both ends branch is equipped with water inlet (101) and delivery port (102), its characterized in that: a first cavity and a second cavity are respectively formed in the valve body (1), the first cavity is communicated with the second cavity, the water inlet (101) is communicated with the first cavity, the water outlet (102) is communicated with the second cavity, an adjusting rod (22) is arranged in the first cavity along the direction parallel to the y axis, and a filter screen (19) is arranged at the bottom of the adjusting rod (22); along being on a parallel with y axle direction, second cavity inboard is equipped with out water core (27), it is equipped with spring (15) to go out water core (27) top, spring (15) top is equipped with third nut (16), third nut (16) top is equipped with adjusting screw (17), there is shaft shoulder (171) at the top of adjusting screw (17), shaft shoulder (171) top is at second cavity inner wall top, just spring (15) inner space is precessing after adjusting screw (17) and third nut (16) cooperation.

2. A pressure limiting valve with switch and filter functions as claimed in claim 1 wherein: it includes inner core (3) to go out water core (27), inner core (3) inboard is equipped with piston rod (5), piston rod (5) top cover is equipped with diaphragm (4), diaphragm (4) inboard top is equipped with supports lid (6), it is equipped with first nut (2) to support lid (6) top, just first nut (2) run through support lid (6), diaphragm (4) and piston rod (5) spiro union, piston rod (5) bottom cover is equipped with cushion (8), cushion (8) bottom is equipped with second nut (7), just second nut (7) and piston rod (5) spiro union.

3. The pressure limiting valve with switch and filter functions of claim 1, wherein: still include fifth nut (20), fifth nut (20) and the junction of adjusting pole (22) are equipped with fifth O type sealing washer (13) and sixth O type sealing washer (14) respectively, valve body (1) bottom one side spiro union has fourth nut (18), the junction of fourth nut (18) and valve body (1) is equipped with fourth O type sealing washer (12), just fourth nut (18) are in filter screen (19) bottom.

4. A pressure limiting valve with switch and filter functions as claimed in claim 1 wherein: adjust pole (22) top cover and be equipped with fifth nut (20), second cavity top spiro union has gland (25), first cavity top spiro union has drawing cap (24), gland (25) top is equipped with second data plate (26), drawing cap (24) top is equipped with first data plate (21), adjusting screw (17) top runs through second data plate (26) inboard top.

5. The pressure limiting valve with switch and filter functions of claim 2, wherein: the connecting part of the top bottom of the outer side of the inner core (3) and the second cavity is respectively sleeved with a first O-shaped sealing ring (9) and a second O-shaped sealing ring (10), and the connecting part of the piston rod (5) and the diaphragm (4) is provided with a third O-shaped sealing ring (11).

6. The pressure limiting valve with switch and filter functions of claim 1, wherein: the inner side of the water outlet is provided with a one-way valve (23), and the one-way valve (23) is used for preventing water from flowing back.