CN212868593U

CN212868593U - Energy-saving check valve

Info

Publication number: CN212868593U
Application number: CN202021227948.8U
Authority: CN
Inventors: 李佩
Original assignee: Shanghai Langpei Electromechanical Technology Co ltd
Current assignee: Shanghai Ruibang Pump Manufacturing Co.,Ltd.
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-04-02
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses an energy-saving check valve, which comprises a valve body, the first valve plate piece of valve body inner wall fixedly connected with and second valve plate piece, first valve plate piece and second valve plate piece looks homonymy are equipped with first closing plate and second closing plate respectively, first closing plate and second closing plate are corresponding with first valve plate piece and second valve plate piece respectively, first closing plate is close to the first sealed pad of one side fixedly connected with of first valve plate piece, one side fixedly connected with second that the second closing plate is close to the second valve plate piece is sealed to fill up, through connecting rod fixed connection between first closing plate and the second closing plate, be equipped with two recesses on the valve body inner wall between first valve plate piece and the second valve plate piece, equal fixedly connected with branch on two recess inner walls, the equal fixedly connected with slider in first valve plate piece both sides, two sliders all cup joint with corresponding branch through the through-hole, the utility model discloses the beneficial effect who reaches is: through double sealing, make whole sealed effect better, can be better prevent the medium backward flow.

Description

Energy-saving check valve

Technical Field

The utility model relates to an energy-conserving check valve belongs to valve technical field.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water. The check valve and the stop valve are combined for use, and the safety isolation effect can be achieved.

The existing check valve is long in service time and easy to deteriorate in sealing performance, and meanwhile, the existing check valve is single-layer sealing and poor in sealing effect.

SUMMERY OF THE UTILITY MODEL

The utility model provides an energy-saving check valve, the effectual problem that exists of having solved among the prior art.

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

the utility model relates to an energy-saving check valve, which comprises a valve body, wherein the inner wall of the valve body is fixedly connected with a first valve disk block and a second valve disk block, the same sides of the first valve disk block and the second valve disk block are respectively provided with a first sealing plate and a second sealing plate, the first sealing plate and the second sealing plate respectively correspond to the first valve disk block and the second valve disk block, one side of the first sealing plate close to the first valve disk block is fixedly connected with a first sealing gasket, one side of the second sealing plate close to the second valve disk block is fixedly connected with a second sealing gasket, the first sealing plate and the second sealing plate are fixedly connected through a connecting rod, two grooves are arranged on the inner wall of the valve body between the first valve disk block and the second valve disk block, two supporting rods are fixedly connected on the inner wall of the grooves, two sliding blocks are fixedly connected on both sides of the first valve disk block, and the two sliding blocks are sleeved with the corresponding, two equal fixedly connected with spring between slider and the corresponding recess inner wall, two the spring overlaps respectively and establishes in the two spinal branch outsides.

As an optimal technical scheme of the utility model, two the slider all with correspond branch sliding connection.

As an optimal technical scheme of the utility model, one side that first valve disk piece is close to first closing plate is equipped with two first constant head tanks, two first closing plate is close to two first fixed blocks of one side fixedly connected with of first valve disk piece, two first fixed block is corresponding with two first constant head tanks respectively, one side that second valve disk piece is close to the second closing plate is equipped with two second constant head tanks, two are two to two second closing plate are close to two second fixed blocks of one side fixedly connected with of second valve disk piece the second fixed block is corresponding with two second constant head tanks respectively.

As a preferred technical scheme of the utility model, two equal fixedly connected with first gluey piece, two on the first constant head tank inner wall equal fixedly connected with second glues the piece on the second constant head tank inner wall.

As a preferred technical scheme of the utility model, two the length of first fixed block all is less than the degree of depth that corresponds first constant head tank, two the length of second fixed block all is less than the degree of depth that corresponds the second constant head tank.

As a preferred technical scheme of the utility model, distance between first closing plate and the first valve disk piece equals the distance between second closing plate and the second valve disk piece.

The utility model discloses the beneficial effect who reaches is: when the medium is following current, first closing plate and first valve disk piece separation, two sliders extrude two springs simultaneously, make second closing plate and second valve disk piece separation through the connecting rod, the medium carries out following current, when the adverse current condition appears in the medium, initial position is got back to through the restoring force that corresponds the spring to two sliders, thereby drive first closing plate and first valve disk piece and combine together, two first fixed blocks and two first constant head tanks combine together, and, two second closing plates and second valve disk piece combine together, two second fixed blocks and two second constant head tanks combine together, play and prevent the effect of medium adverse current, double seal, sealed effect is better, can be better prevent the medium backward flow.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the structure of the A-A surface of the present invention;

fig. 3 is a schematic diagram of a first sealing plate structure of the present invention;

fig. 4 is a schematic diagram of a second sealing plate structure of the present invention.

In the figure: 1. a valve body; 2. a first rubber block; 3. a first fixed block; 4. a slider; 5. a strut; 6. a groove; 7. a spring; 8. a second gasket; 9. a second fixed block; 10. a second sealing plate; 11. a second glue block; 12. a second positioning groove; 13. a second valve disk block; 14. a connecting rod; 15. a first sealing plate; 16. a first positioning groove; 17. a first gasket; 18. a first valve disc block; 19. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in FIGS. 1-4, the energy-saving check valve of the present invention comprises a valve body 1, a first valve disk block 18 and a second valve disk block 13 are fixedly connected to the inner wall of the valve body 1, a first sealing plate 15 and a second sealing plate 10 are respectively arranged on the same side of the first valve disk block 18 and the second valve disk block 13, the first sealing plate 15 and the second sealing plate 10 respectively correspond to the first valve disk block 18 and the second valve disk block 13, a first sealing gasket 17 is fixedly connected to one side of the first sealing plate 15 close to the first valve disk block 18, a second sealing gasket 8 is fixedly connected to one side of the second sealing plate 10 close to the second valve disk block 13, the first sealing plate 15 is fixedly connected to the second sealing plate 10 through a connecting rod 14, two grooves 6 are arranged on the inner wall of the valve body 1 between the first valve disk block 18 and the second valve disk block 13, supporting rods 5 are fixedly connected to the inner walls of the two grooves 6, sliders 4 are fixedly connected to both sides of the first valve, two sliders 4 all cup joint with corresponding branch 5 through-hole 19, two sliders 4 with correspond equal fixedly connected with spring 7 between the 6 inner walls of recess, two springs 7 overlap respectively and establish in two branch 5 outsides, through double seal, make the whole sealed effect better, can be better prevent the medium backward flow.

The distance between the first sealing plate 15 and the first valve disk block 18 is equal to the distance between the second sealing plate 10 and the second valve disk block 13, so that the first sealing plate 15 and the second sealing plate 10 can be simultaneously separated from and combined with the first valve disk block 18 and the second valve disk block 13, one side of the first valve disk block 18 close to the first sealing plate 15 is provided with two first positioning grooves 16, one side of the first sealing plate 15 close to the first valve disk block 18 is fixedly connected with two first fixing blocks 3, the two first fixing blocks 3 respectively correspond to the two first positioning grooves 16, one side of the second valve disk block 13 close to the second sealing plate 10 is provided with two second positioning grooves 12, one side of the second sealing plate 10 close to the second valve disk block 13 is fixedly connected with two second fixing blocks 9, the two second fixing blocks 9 respectively correspond to the two second positioning grooves 12, so as to facilitate positioning and ensure sealing effect, first gluey piece 2 of equal fixedly connected with on two first constant head tank 16 inner walls, gluey piece 11 of equal fixedly connected with second on two second constant head tank 12 inner walls, the length of two first fixed blocks 3 all is less than the degree of depth that corresponds first constant head tank 16, the length of two second fixed blocks 9 all is less than the degree of depth that corresponds second constant head tank 12, first sealed pad 17 can contact with 18 contacts of first valve plate piece, the sealed 8 ability of second valve plate piece 13 in close contact with, two sliders 4 all with correspond 5 sliding connection of branch.

Specifically, when the utility model is used, when the medium flows downstream, the first sealing plate 15 is separated from the first valve disk block 18, and simultaneously the two sliders 4 extrude the two springs 7, the second sealing plate 10 is separated from the second valve disk block 13 through the connecting rod 14, the medium flows downstream, when the medium flows upstream, the two sliders 4 return to the initial position through the restoring force of the corresponding spring 7, thereby driving the first sealing plate 15 to be combined with the first valve disk block 18, the first sealing gasket 17 is closely contacted with the first valve disk block 18, the two first fixing blocks 3 are combined with the two first positioning grooves 16, and the two second sealing plates 10 are combined with the second valve disk block 13, the second sealing gasket 8 is closely contacted with the second valve disk block 13, the two second fixing blocks 9 are combined with the two second positioning grooves 12, the function of preventing the medium from flowing upstream is achieved, through double sealing, the whole sealing effect is better, the medium can be better prevented from flowing back.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The energy-saving check valve comprises a valve body (1) and is characterized in that a first valve disc block (18) and a second valve disc block (13) are fixedly connected to the inner wall of the valve body (1), a first sealing plate (15) and a second sealing plate (10) are arranged on the same side of the first valve disc block (18) and the second valve disc block (13) respectively, the first sealing plate (15) and the second sealing plate (10) correspond to the first valve disc block (18) and the second valve disc block (13) respectively, a first sealing gasket (17) is fixedly connected to one side, close to the first valve disc block (18), of the first sealing plate (15), a second sealing gasket (8) is fixedly connected to one side, close to the second valve disc block (13), of the second sealing plate (10), the first sealing plate (15) is fixedly connected with the second sealing gasket (10) through a connecting rod (14), and two grooves (6) are formed in the inner wall of the valve body (1) between the first valve disc block (18) and the second valve disc block (13) ) Equal fixedly connected with branch (5) on recess (6) inner wall, equal fixedly connected with slider (4) in first valve plate piece (18) both sides, two slider (4) all cup joint through-hole (19) and corresponding branch (5), two slider (4) and corresponding equal fixedly connected with spring (7) between recess (6) inner wall, two spring (7) are established respectively in two branch (5) outsides.

2. An energy saving non-return valve according to claim 1, characterized in that both said sliding blocks (4) are slidably connected with the corresponding support rod (5).

3. The energy-saving check valve according to claim 1, characterized in that two first positioning grooves (16) are formed in one side of the first valve disk block (18) close to the first sealing plate (15), two first fixing blocks (3) are fixedly connected to one side of the first sealing plate (15) close to the first valve disk block (18), the two first fixing blocks (3) correspond to the two first positioning grooves (16), two second positioning grooves (12) are formed in one side of the second valve disk block (13) close to the second sealing plate (10), two second fixing blocks (9) are fixedly connected to one side of the second sealing plate (10) close to the second valve disk block (13), and the two second fixing blocks (9) correspond to the two second positioning grooves (12).

4. An energy-saving check valve according to claim 3, characterized in that the inner walls of the two first positioning grooves (16) are fixedly connected with a first rubber block (2), and the inner walls of the two second positioning grooves (12) are fixedly connected with a second rubber block (11).

5. An energy-saving check valve as claimed in claim 3, characterized in that the length of each of the two first fixing blocks (3) is less than the depth of the corresponding first positioning groove (16), and the length of each of the two second fixing blocks (9) is less than the depth of the corresponding second positioning groove (12).

6. An energy saving non return valve according to claim 1, characterized in that the distance between the first sealing plate (15) and the first valve disc block (18) is equal to the distance between the second sealing plate (10) and the second valve disc block (13).