CN216768478U

CN216768478U - Composite pressure relief valve

Info

Publication number: CN216768478U
Application number: CN202122453165.2U
Authority: CN
Inventors: 王学民; 柳斌; 张蕾; 王学洪
Original assignee: Weihai Zhonghao Pneumatic Complete Equipment Co ltd
Current assignee: Weihai Zhonghao Pneumatic Hydraulic Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-06-17
Anticipated expiration: 2031-10-12

Abstract

The utility model discloses a composite pressure-reducing safety valve which comprises a valve body and a partition plate, wherein the partition plate is fixedly connected inside the valve body, a water guide hole is embedded in the bottom end of the partition plate, a connecting flange pipe is fixedly connected to the top end of the valve body, and a pressure-reducing flange pipe is fixedly connected to the top end of the connecting flange pipe. This compound relief valve is through being provided with first spring, the threaded rod, the lid, the nut, the thread bush, locating plate and decompression flange pipe, this valve body is when using, open the lid earlier, rotate the threaded rod again, the threaded rod can go up and down simultaneously through rotating in the inside of thread bush, the threaded rod drives the outside locating plate again and pushes down the first spring of bottom, first spring exerts pressure to the closing plate, after adjusting suitable pressure according to the condition of using, cup joint the nut in the outside of threaded rod and the laminating on the top of thread bush, thereby fix a position threaded rod and locating plate, the solution is the unable convenient problem of adjusting the pressure value according to the in service behavior.

Description

Composite pressure relief valve

Technical Field

The utility model relates to the technical field of communicating valves, in particular to a composite pressure relief valve.

Background

The relief valve is when the pressure that can be inside is too high, in time derive the valve body in order to reduce internal pressure with inside liquid, belong to automatic valve body, and the relief pressure valve also has the effect that reduces internal pressure, so these two kinds of valve bodies can make up into an organic whole and use, but current compound relief valve has the unable convenient pressure value of adjusting according to the in service behavior when using, because be the combined type so inside common opening and closing piece stability is difficult to guarantee to lead to the situation of easily appearing revealing, and unable timely discharge partial liquid when pressure is too big, so now need a neotype compound relief valve in order to solve foretell defect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a composite pressure relief valve to solve the problem that the pressure value cannot be conveniently adjusted according to the use condition in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a composite pressure relief valve comprises a valve body and a partition plate, wherein the inside of the valve body is fixedly connected with the partition plate, a water guide hole is embedded in the bottom end of the partition plate, a connecting flange pipe is fixedly connected to the top end of the valve body, a pressure relief flange pipe is fixedly connected to the top end of the connecting flange pipe, a water return hole is embedded in one side of the bottom end of the connecting flange pipe, a sliding groove is embedded in the bottom end of the connecting flange pipe, a threaded sleeve is fixedly connected to the top end of the pressure relief flange pipe, a water outlet hole is embedded in the bottom end of the valve body, and a liquid outlet valve pipe is fixedly connected to the bottom end of the valve body;

the connecting flange pipe is characterized in that a connecting rod is arranged inside the connecting flange pipe, a sealing plate is fixedly connected to the top end of the connecting rod, a movable piece is fixedly connected to the outer portion of the connecting rod, a limiting sleeve plate is connected to one side of the partition plate, and a water stop piece is fixedly connected to the bottom end of the connecting rod.

Preferably, the sealing plate and the pressure reducing flange pipe form a sliding connection, and the movable sheet and the sliding groove form a sliding connection.

Preferably, the limiting sleeve plate and the connecting rod form sliding connection, and the diameter of the inner part of the water guide hole is smaller than that of the water stop sheet.

Preferably, the threaded sleeve is movably connected with a threaded rod in the inner portion, the threaded rod is fixedly connected with a positioning plate in the outer portion, a first spring is fixedly connected with the bottom end of the positioning plate and fixedly connected with a sealing plate, the top end of the pressure reducing flange pipe is movably connected with a cover body, and a nut is connected with the top end of the threaded rod in the outer portion in a threaded mode.

Preferably, the bottom of play liquid valve pipe is inlayed and is had the bottom hole, the inside sliding connection of bottom hole has the lifter, the board is sealed to the top fixedly connected with of lifter, the bottom fixedly connected with second spring of sealing the board, second spring and play liquid valve pipe fixed connection, a set of limiting plate of fixedly connected with respectively at the both ends of play liquid valve socle portion, a set of stopper of bottom difference fixedly connected with in the lifter both sides, stopper and limiting plate sliding connection, the both sides of lifter are inlayed respectively and are had a set of liquid groove.

Preferably, the diameter of the inside of the water outlet hole is smaller than that of the sealing plate, and the water outlet valve pipe is in sliding connection with the sealing plate.

Compared with the prior art, the utility model has the beneficial effects that: the composite pressure relief valve not only realizes convenient pressure regulation, realizes the stability of the opening and closing piece, but also realizes the reduction of the internal pressure when needed to ensure the internal safety;

(1) by arranging the first spring, the threaded rod, the cover body, the nut, the threaded sleeve, the positioning plate and the pressure reducing flange pipe, when the valve body is used, the cover body is opened firstly, then the threaded rod is rotated, the threaded rod can be lifted and lowered simultaneously by rotating in the threaded sleeve, the threaded rod drives the external positioning plate to press down the first spring at the bottom end, the first spring applies pressure to the sealing plate, after the pressure is adjusted to be proper according to the using condition, the nut is sleeved outside the threaded rod and attached to the top end of the threaded sleeve, so that the threaded rod and the positioning plate are positioned, and the pressure can be conveniently adjusted according to requirements;

(2) by arranging the sliding chute, the water guide hole, the water stop sheet, the limiting sleeve plate, the movable sheet, the connecting rod and the sealing plate, after liquid flows into the valve body, the pressure of the liquid can push the movable sheet at the top end to rise, the movable sheet rises and simultaneously drives the connecting rod to rise, and the connecting rod then drives the water stop sheet at the bottom end to rise, so that the internal flow pressure is adjusted, the movable sheet limits the connecting rod while moving in the sliding chute, the connecting rod is guaranteed to vertically move, the limiting sleeve plate on one side of the partition plate further guarantees the stability of the movement of the connecting rod, the stability of the water stop sheet is guaranteed, and the phenomenon of liquid leakage when the valve body is closed is prevented;

(3) through being provided with the apopore, the bleeder valve pipe, the lifter, the drain tank, the limiting plate, the stopper, the bottom hole, the second spring with seal the board, when inside pressure is too big, liquid passes through the board of sealing of apopore extrusion bottom, make and seal the board and break away from behind the inside top of bleeder valve, it is inside to make liquid get into the bleeder valve when the apopore is open, it drives the lifter decline to seal the board while descending, the lifter descends, the lifter makes the drain tank of its both sides run through the bottom hole and when communicating with the outside of bleeder valve pipe after descending to a certain position, liquid alright derive with through the drain tank, the bottom hole is through the board vertical motion of sealing to the spacing assurance top of lifter, after pressure reduces, under the promotion of second spring, it makes the apopore closed to seal the board reset, it reduces internal pressure to have realized the discharge liquid that can be timely.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic top view of the threaded sleeve of the present invention;

FIG. 3 is an enlarged partial cross-sectional view taken at A in FIG. 1 according to the present invention;

fig. 4 is a schematic bottom view of the limiting plate of the present invention.

In the figure: 1. a first spring; 2. a threaded rod; 3. a cover body; 4. a nut; 5. a threaded sleeve; 6. positioning a plate; 7. a pressure reducing flange pipe; 8. connecting a flange pipe; 9. a chute; 10. a water guide hole; 11. a valve body; 12. a partition plate; 13. a water outlet hole; 14. a liquid outlet valve pipe; 15. a lifting rod; 16. a liquid outlet groove; 17. a limiting plate; 18. a limiting block; 19. a bottom hole; 20. a second spring; 21. a sealing plate; 22. a water stop sheet; 23. a limiting sleeve plate; 24. a water return hole; 25. a movable plate; 26. a connecting rod; 27. and (7) sealing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to fig. 1-4, a composite pressure relief valve comprises a valve body 11 and a partition plate 12, the inside of the valve body 11 is fixedly connected with the partition plate 12, a water guide hole 10 is embedded in the bottom end of the partition plate 12, the top end of the valve body 11 is fixedly connected with a connecting flange pipe 8, the top end of the connecting flange pipe 8 is fixedly connected with a pressure relief flange pipe 7, a water return hole 24 is embedded in one side of the bottom end of the connecting flange pipe 8, a sliding groove 9 is embedded in the bottom end of the connecting flange pipe 8, a threaded sleeve 5 is fixedly connected to the top end of the pressure relief flange pipe 7, a water outlet hole 13 is embedded in the bottom end of the valve body 11, and a liquid outlet valve pipe 14 is fixedly connected to the bottom end of the valve body 11;

a connecting rod 26 is arranged inside the connecting flange pipe 8, a sealing plate 27 is fixedly connected to the top end of the connecting rod 26, a movable sheet 25 is fixedly connected to the outside of the connecting rod 26, a limiting sleeve plate 23 is connected to one side of the partition plate 12, and a water stop sheet 22 is fixedly connected to the bottom end of the connecting rod 26;

the sealing plate 27 and the pressure reducing flange pipe 7 form sliding connection, and the movable sheet 25 and the sliding groove 9 form sliding connection;

the limiting sleeve plate 23 and the connecting rod 26 form sliding connection, the diameter of the inside of the water guide hole 10 is smaller than that of the water stop sheet 22, and the water stop sheet 22 can be ensured to completely seal the water guide hole 10;

specifically, as shown in fig. 1 and 2, when using, open lid 3 earlier, rotate threaded rod 2 again, threaded rod 2 can go up and down simultaneously through the inside rotation at threaded sleeve 5, threaded rod 2 drives outside locating plate 6 again and pushes down the first spring 1 of bottom, first spring 1 exerts pressure to closing plate 27, after adjusting suitable pressure according to the condition of using, cup joint nut 4 in the outside of threaded rod 2 and laminate on the top of threaded sleeve 5, thereby fix a position threaded rod 2 and locating plate 6, realized can be according to the convenient regulated pressure of demand.

Example 2: the inner part of the threaded sleeve 5 is movably connected with a threaded rod 2, the outer part of the threaded rod 2 is fixedly connected with a positioning plate 6, the bottom end of the positioning plate 6 is fixedly connected with a first spring 1, the first spring 1 is fixedly connected with a sealing plate 27, the top end of a pressure reducing flange pipe 7 is movably connected with a cover body 3, and the top end of the outer part of the threaded rod 2 is in threaded connection with a nut 4;

specifically, as shown in fig. 1, after there is liquid to flow into inside the valve body 11, the pressure of liquid can promote the movable plate 25 on top to rise, the movable plate 25 drives the connecting rod 26 to rise while rising, the connecting rod 26 drives the waterstop 22 of bottom again to rise, thereby adjust inside flow pressure, and the movable plate 25 is spacing to the connecting rod 26 while at the inside motion of spout 9, guarantee that the connecting rod 26 makes vertical motion, the stability of connecting rod 26 motion is further guaranteed to the spacing lagging 23 of baffle 12 one side, it is stable to have realized can guaranteeing the waterstop 22, in order to prevent the phenomenon of weeping when closing.

Example 3: a bottom hole 19 is embedded in the bottom end of the liquid outlet valve pipe 14, a lifting rod 15 is slidably connected inside the bottom hole 19, a sealing plate 21 is fixedly connected to the top end of the lifting rod 15, a second spring 20 is fixedly connected to the bottom end of the sealing plate 21, the second spring 20 is fixedly connected with the liquid outlet valve pipe 14, a group of limiting plates 17 is fixedly connected to two ends of the bottom of the liquid outlet valve pipe 14 respectively, a group of limiting blocks 18 is fixedly connected to the bottom ends of two sides of the lifting rod 15 respectively, the limiting blocks 18 are slidably connected with the limiting plates 17, and a group of liquid outlet grooves 16 are embedded in two sides of the lifting rod 15 respectively;

the diameter of the inner part of the water outlet hole 13 is smaller than that of the sealing plate 21, so that the sealing plate 21 can completely seal the water outlet hole 13, and the liquid outlet valve pipe 14 and the sealing plate 21 form sliding connection;

specifically, as shown in fig. 1, fig. 3 and fig. 4, when the internal pressure is too high, liquid extrudes the sealing plate 21 at the bottom end through the water outlet hole 13, so that the sealing plate 21 is separated from the top end inside the liquid outlet valve tube 14, the water outlet hole 13 is opened while the liquid enters the liquid outlet valve tube 14, the sealing plate 21 descends while driving the lifting rod 15 to descend, the lifting rod 15 descends to a certain position to enable the liquid outlet grooves 16 at two sides of the lifting rod to penetrate through the bottom hole 19 and communicate with the outside of the liquid outlet valve tube 14, the liquid can be led out through the liquid outlet groove 16, the bottom hole 19 ensures the vertical movement of the sealing plate 21 at the top end through limiting the lifting rod 15, after the pressure is reduced, the sealing plate 21 is reset to close the water outlet hole 13 under the pushing of the second spring 20, and the internal pressure can be reduced by discharging the liquid in time.

The working principle is as follows: when the utility model is used, firstly, the cover body 3 is opened, then the threaded rod 2 is rotated, the threaded rod 2 can be lifted and lowered simultaneously by rotating in the threaded sleeve 5, the threaded rod 2 drives the external positioning plate 6 to press down the first spring 1 at the bottom end, the first spring 1 applies pressure to the sealing plate 27, after the pressure is adjusted to be proper according to the use condition, the nut 4 is sleeved outside the threaded rod 2 and is attached to the top end of the threaded sleeve 5, so that the threaded rod 2 and the positioning plate 6 are positioned, after liquid flows in the valve body 11, the pressure of the liquid can push the movable sheet 25 at the top end to rise, the movable sheet 25 rises and drives the connecting rod 26 to rise, the connecting rod 26 then drives the water stop sheet 22 at the bottom end to rise, so as to adjust the internal flow pressure, and the movable sheet 25 limits the connecting rod 26 while moving in the chute 9, so as to ensure the connecting rod 26 to do vertical movement, the stability of connecting rod 26 motion is further guaranteed to spacing sleeve board 23 of baffle 12 one side, it is stable to have realized guaranteeing sealing strip 22, when inside pressure is too big, liquid passes through apopore 13 extrusion bottom seal board 21, make seal board 21 break away from the inside top of outlet valve pipe 14 after, apopore 13 is opened and is made liquid get into outlet valve pipe 14 inside simultaneously, it drives lifter 15 to descend to seal board 21 descends simultaneously, when lifter 15 descends to certain position and makes the drain tank 16 of its both sides run through bottom outlet 19 and communicate with the outside of outlet valve pipe 14, liquid alright lead out through drain tank 16, bottom outlet 19 is through the sealed board 21 vertical motion of guaranteeing the top to lifter 15 spacing, after pressure reduces, under the promotion of second spring 20, it makes apopore 13 closed to seal board 21 resets.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a compound relief valve, includes valve body (11) and baffle (12), its characterized in that: a partition plate (12) is fixedly connected to the inside of the valve body (11), a water guide hole (10) is inlaid at the bottom end of the partition plate (12), a connecting flange pipe (8) is fixedly connected to the top end of the valve body (11), a pressure reducing flange pipe (7) is fixedly connected to the top end of the connecting flange pipe (8), a water return hole (24) is inlaid at one side of the bottom end of the connecting flange pipe (8), a sliding groove (9) is inlaid at the bottom end of the connecting flange pipe (8), a threaded sleeve (5) is fixedly connected to the top end of the pressure reducing flange pipe (7), a water outlet hole (13) is inlaid at the bottom end of the valve body (11), and a liquid outlet valve pipe (14) is fixedly connected to the bottom end of the valve body (11);

the inside of flange pipe (8) is provided with connecting rod (26), the top fixedly connected with closing plate (27) of connecting rod (26), the outside fixedly connected with movable plate (25) of connecting rod (26), one side of baffle (12) is connected with spacing lagging (23), the bottom fixedly connected with sealing strip (22) of connecting rod (26).

2. The compound pressure relief valve of claim 1, wherein: the sealing plate (27) and the pressure reducing flange pipe (7) form sliding connection, and the movable sheet (25) and the sliding groove (9) form sliding connection.

3. The compound pressure relief valve of claim 1, wherein: the limiting sleeve plate (23) and the connecting rod (26) form sliding connection, and the diameter of the inside of the water guide hole (10) is smaller than that of the water stop sheet (22).

4. The compound pressure relief valve of claim 1, wherein: the inside swing joint of threaded sleeve (5) has threaded rod (2), the outside fixedly connected with locating plate (6) of threaded rod (2), the first spring (1) of bottom fixedly connected with of locating plate (6), first spring (1) and closing plate (27) fixed connection, the top swing joint of decompression flange pipe (7) has lid (3), the outside top threaded connection of threaded rod (2) has nut (4).

5. The compound pressure relief valve of claim 1, wherein: the bottom of going out liquid valve pipe (14) is inlayed and is had bottom hole (19), the inside sliding connection of bottom hole (19) has lifter (15), board (21) are sealed to the top fixedly connected with of lifter (15), seal bottom fixedly connected with second spring (20) of board (21), second spring (20) and play liquid valve pipe (14) fixed connection, a set of limiting plate (17) of fixedly connected with respectively at the both ends of going out liquid valve pipe (14) bottom, a set of stopper (18) of fixedly connected with respectively in the bottom of lifter (15) both sides, stopper (18) and limiting plate (17) sliding connection, the both sides of lifter (15) are inlayed respectively and are had a set of drain tank (16).

6. The compound pressure relief valve of claim 1, wherein: the diameter of the inside of the water outlet hole (13) is smaller than that of the sealing plate (21), and the liquid outlet valve pipe (14) and the sealing plate (21) form sliding connection.