CN216306811U - Automatic open-close type balance check valve - Google Patents

Abstract

The utility model relates to the technical field of check valves, in particular to an automatic opening and closing type balance check valve, which comprises a valve tube, wherein two ends of the valve tube are symmetrically and fixedly connected with connecting discs, the top of the valve tube is fixedly connected with a control bin, the bottom of the control bin is fixedly connected with a valve cover, one side of the control bin is provided with a first rotating groove, a first check mechanism is arranged in the first rotating groove, the first check mechanism comprises a threaded rod, the threaded rod is in threaded connection with the first rotating groove, a first sliding groove is arranged in the threaded rod, a first spring is arranged in the first sliding groove, and an L-shaped rod is connected in the first sliding groove in a sliding manner. When the valve in the reverse flow direction is opened, the infiltrated reverse water flow is difficult to pass through the other valve, and the function of preventing the water flow from flowing back and infiltrating is achieved.

Description

Automatic open-close type balance check valve

Technical Field

The utility model relates to the technical field of check valves, in particular to an automatic opening and closing type balance check valve.

Background

The check valve is a valve whose opening and closing member is a circular valve flap and can be actuated by self-weight and medium pressure to block medium backflow, belonging to the field of automatic valve, also called check valve, one-way valve, backflow valve or isolating valve, and its valve flap movement mode can be divided into lift type and swing type, the lift type check valve is similar to the structure of stop valve, and only lacks valve rod for driving valve flap, the medium can be flowed in from inlet end and flowed out from outlet end, when the inlet pressure is greater than the sum of valve flap weight and its flow resistance, the valve is opened, otherwise, when the medium is backflow, the valve is closed, the swing type check valve has a valve flap which is obliquely placed and can be rotated around shaft, its working principle is similar to that of lift type check valve, and the check valve can be used as bottom valve of water-pumping device, and can be used together with stop valve, and can play the role of safety isolation, and its defect is that its resistance is large and sealing property is poor when it is closed, the existing check valve generally adopts a valve which moves up and down to keep one side of the valve to be impacted when the valve flows forward, the valve can move up and be opened, when the impact force during backflow impacts the other side of the valve, the valve is limited to move to form a sealed cavity so that water flow can not flow through, but the liquid at two ends of the single valve is inconsistent, and reverse water flow can permeate when the water flow impacts positively during the opposite flushing, so that the automatic opening and closing type balance check valve is designed.

In the prior art, the following problems exist:

however, when the water flow pressure is too high and the liquid at the two ends is not uniform, the forward water flow and the reverse water flow are oppositely flushed, the valve is opened due to the impact of the forward water flow, the reverse water flow can be converged into the forward water flow, and when the reverse water flow impacts, the liquid of the reverse water flow can permeate into the forward water flow to cause the forward water flow to be polluted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic start-stop type balance check valve to solve the problems in the prior art.

The technical scheme of the utility model is as follows: the utility model provides an automatic balanced check valve of formula of opening and close, includes the valve pipe, the both ends symmetry fixedly connected with connection pad of valve pipe, the top fixedly connected with control storehouse of valve pipe, the top fixedly connected with valve gap in control storehouse, first rotation slot has been seted up to one side in control storehouse, first rotation inslot is equipped with first non return mechanism, first non return mechanism is including the threaded rod, threaded rod and first rotation slot threaded connection, first spout has been seted up to the inside of threaded rod, the inside of first spout is equipped with first spring, the inside sliding connection of first spout has L type pole.

Preferably, the threaded rod is kept away from the one end fixedly connected with of L type pole and is changeed the handle, the one end fixedly connected with first valve plate of L type pole.

Preferably, one side of the valve pipe close to the first valve plate is provided with a water inlet cavity, the inside of the valve pipe is provided with a control cavity, the inside of the control cavity is symmetrically and fixedly connected with a first check block, and the inside of the control cavity is provided with a second check mechanism.

Preferably, the second non-return mechanism is including two second valve plates, every the logical groove has all been seted up to the one end inside of second valve plate, every the equal fixedly connected with torsional spring in inside that leads to the groove, every the equal fixedly connected with fixed column in both sides of torsional spring, every the fixed column all with the inside fixed connection of valve pipe, the equal fixedly connected with of side of second valve plate is sealed to be filled up, every the equal fixedly connected with second dog in one side of second valve plate.

Preferably, the decompression chamber has been seted up to one side of valve pipe, one side fixedly connected with elasticity leather sheath that the chamber of intaking was kept away from in the decompression chamber, the second spout has been seted up to the bottom bilateral symmetry in decompression chamber, every the equal fixedly connected with second spring in bottom of second spout, two the common fixedly connected with slide in top of second spring, slide and second spout sliding connection.

The utility model provides an automatic start-stop type balance check valve through improvement, compared with the prior art, the automatic start-stop type balance check valve has the following improvements and advantages:

compared with the existing check valve, the check valve has the advantages that the two different valves are designed by adopting the height difference, the check valve can automatically move in a single direction due to the water flow pressure, the two valves with different heights are utilized while the valves prevent water flow from flowing back, and the counter-flow which permeates when the valves in the counter-flow direction are opened is difficult to pass through the other valve, so that the purpose of preventing the water flow from flowing back and permeating is achieved.

Drawings

The utility model is further explained below with reference to the figures and examples:

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

FIG. 2 is a schematic view of the internal structure of the first check mechanism of the present invention;

FIG. 3 is a schematic view of a second check mechanism connection of the present invention;

FIG. 4 is a schematic view of the internal structure of the reverse osmosis releasing mechanism of the present invention;

fig. 5 is a schematic view of the internal structure of the second check mechanism of the present invention.

Description of reference numerals: 1. a connecting disc; 2. a control cabin; 3. a valve tube; 4. a valve cover; 5. a water inlet cavity; 6. a control chamber; 7. a first stopper; 8. a second valve plate; 9. a second stopper; 10. a rotating groove; 11. a first chute; 12. a first spring; 13. an L-shaped rod; 14. a first valve plate; 15. turning a handle; 16. a threaded rod; 18. a pressure reducing chamber; 19. an elastic leather cover; 20. a slide plate; 21. a second chute; 22. a second spring; 23. a through groove; 24. a torsion spring; 25. fixing a column; 26. and a gasket.

Detailed Description

The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, 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.

The utility model provides an automatic opening and closing type balance check valve through improvement, and the technical scheme of the utility model is as follows:

the first embodiment is as follows:

as shown in fig. 1-5, an automatic start-stop type balance check valve comprises a valve tube 3, two ends of the valve tube 3 are symmetrically and fixedly connected with connecting discs 1, a top fixedly connected with control cabin 2 of the valve tube 3, a top fixedly connected with valve cover 4 of the control cabin 2, a first rotating groove 10 is formed in one side of the control cabin 2, a first check mechanism is arranged in the first rotating groove 10 and comprises a threaded rod 16, the threaded rod 16 is in threaded connection with the first rotating groove 10, a first sliding groove 11 is formed in the threaded rod 16, a first spring 12 is arranged in the first sliding groove 11, an L-shaped rod 13 is connected to the first sliding groove 11 in a sliding mode, and the threaded rod 16 can be matched with the first rotating groove 10 to further adjust the L-shaped rod 13.

Preferably, one end of the threaded rod 16, which is far away from the L-shaped rod 13, is fixedly connected with a rotating handle 15, one end of the L-shaped rod 13 is fixedly connected with a first valve plate 14, and the rotating handle 15 can drive the threaded rod 16 to rotate.

Preferably, the water inlet cavity 5 is opened on one side of the valve pipe 3 close to the first valve plate 14, the control cavity 6 is opened inside the valve pipe 3, the first check blocks 7 are symmetrically and fixedly connected inside the control cavity 6, the second check mechanism is arranged inside the control cavity 6, and the two first check blocks 7 can limit the second check mechanism to enable the second check mechanism to move towards one direction only.

Preferably, the second non-return mechanism is including two second valve plates 8, every logical groove 23 has all been seted up to second valve plate 8's one end is inside, every lead to the equal fixedly connected with torsional spring 24 in the inside of groove 23, every the equal fixedly connected with fixed column 25 in the both sides of torsional spring 24, every fixed column 25 all with the inside fixed connection of valve pipe 3, the equal fixedly connected with of side of second valve plate 8 seals up 26, every the equal fixedly connected with second stopper 9 in one side of second valve plate 8, torsional spring 24 enables second valve plate 8 to reset.

Preferably, a pressure reduction cavity 18 is formed in one side of the valve pipe 3, one side of the pressure reduction cavity 18, which is far away from the water inlet cavity 5, is fixedly connected with an elastic leather cover 19, second sliding grooves 21 are symmetrically formed in two sides of the bottom of the pressure reduction cavity 18, each second sliding groove 21 is fixedly connected with a second spring 22 and a sliding plate 20, the tops of the second springs 22 are fixedly connected with each other, the sliding plate 20 is connected with the second sliding grooves 21 in a sliding mode, and the second sliding grooves 21 can limit the sliding plate 20 to ensure stable sliding of the sliding plate.

The working principle is as follows: rivers flow into from the chamber of intaking 5, water pressure promotes first valve plate 14 motion, it rotates to promote second valve plate 8 after getting into control chamber 6, thereby make its forward flow, after the forward rivers stop, first spring 12 makes L type pole 13 reset and drives first valve plate 14 and seal up and make reverse rivers unable to pass through, two second valve plates 8 reset because the steering power who leads to groove 23, thereby close, make reverse rivers unable to pass through, two not co-altitude valve mechanism make reverse rivers unable when rivers impact to take place the infiltration, simultaneously to the rivers in infiltration control chamber 6, can be because decompression chamber 18 and the cooperation of elasticity leather clothing 19 make its control chamber 6 have the pressure-reducing capacity, prevent that infiltration rivers from leading to the rivers of infiltration to pass through the infiltration chamber of intaking 5 at the twinkling of an eye that forward rivers pass through owing to the atmospheric pressure that produces when reverse rivers flow.

The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. An automatic balanced check valve of formula of opening and close, includes valve pipe (3), its characterized in that: the utility model discloses a valve pipe, including valve pipe (3), the both ends symmetry fixedly connected with connection pad (1) of valve pipe (3), the top fixedly connected with control storehouse (2) of valve pipe (3), top fixedly connected with valve gap (4) in control storehouse (2), rotation groove (10) have been seted up to one side in control storehouse (2), be equipped with first non return mechanism in rotation groove (10), first non return mechanism is including threaded rod (16), threaded rod (16) and rotation groove (10) threaded connection, first spout (11) have been seted up to the inside of threaded rod (16), the inside of first spout (11) is equipped with first spring (12), the inside sliding connection of first spout (11) has L type pole (13).

2. The balanced check valve of claim 1, wherein: the one end fixedly connected with that L type pole (13) were kept away from in threaded rod (16) changes handle (15), the one end fixedly connected with first valve plate (14) of L type pole (13).

3. The balanced check valve of claim 1, wherein: the water inlet cavity (5) is opened to one side that valve pipe (3) are close to first valve plate (14), control chamber (6) have been opened to the inside of valve pipe (3), the first dog (7) of the inside symmetry fixedly connected with of control chamber (6), the inside of control chamber (6) is equipped with second non return mechanism.

4. The balanced check valve of claim 3, wherein: the second non return mechanism is including two second valve plates (8), every logical groove (23), every have all been seted up to the one end inside of second valve plate (8) the equal fixedly connected with torsional spring (24) in inside that lead to groove (23), every the equal fixedly connected with fixed column (25) in both sides of torsional spring (24), every fixed column (25) all with the inside fixed connection of valve pipe (3), the equal fixedly connected with of side of second valve plate (8) seals up pad (26), every the equal fixedly connected with second dog (9) in one side of second valve plate (8).

5. The balanced check valve of claim 1, wherein: decompression chamber (18) have been seted up to one side of valve pipe (3), keeping away from of decompression chamber (18) into water chamber (5) one side fixed connection elasticity leather sheath (19), second spout (21), every have been seted up to the bottom bilateral symmetry in decompression chamber (18) the equal fixedly connected with second spring (22), two in bottom of second spout (21) the common fixedly connected with slide (20) in top of second spring (22), slide (20) and second spout (21) sliding connection.

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