CN213776480U

CN213776480U - Single-diaphragm slow-closing type silencing check valve

Info

Publication number: CN213776480U
Application number: CN202022683580.2U
Authority: CN
Inventors: 崔义
Original assignee: Hubei Dongjiu Fire Protection System Engineering Co ltd
Current assignee: Hubei Dongjiu Fire Protection System Engineering Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-23
Anticipated expiration: 2030-11-18

Abstract

The utility model provides a single diaphragm slow-closing type noise elimination check valve, which belongs to the technical field of check valves, and comprises a main valve pipe, wherein the outer wall of the main valve pipe is fixedly connected with a control screw seat, the inner wall of the control screw seat is movably connected with a control screw, the upper end of the control screw is fixedly connected with a rotary valve button, the outer wall of the control screw is movably connected with a protective sleeve, the outer wall of the control screw seat is fixedly connected with a protective seat, the single diaphragm slow-closing type noise elimination check valve is characterized in that the rotary valve button is screwed when in use through the matching arrangement of the control screw seat, a nut, a diaphragm and a water blocking block, the meshing amount of the control screw seat and the control screw is determined, thereby the contact of the diaphragm and the water blocking block can be controlled, the work of the slow-control check valve is convenient, the protective sleeve and the protective seat are combined through a fixing bolt and the nut, the setting can prevent the head loss, the energy waste is reduced, the sealing effect is improved, and the service life of the equipment is prolonged.

Description

Single-diaphragm slow-closing type silencing check valve

Technical Field

The utility model belongs to the technical field of the check valve, concretely relates to single diaphragm slows down closed noise elimination check valve.

Background

Check valves of this type, which are designed to allow a medium to flow in one direction only and to prevent a medium from flowing in the opposite direction, are generally operated automatically, and a valve flap is opened by a fluid pressure flowing in one direction and the valve flap is closed by the fluid pressure and the self-weight of the valve flap to act on a valve seat to shut off the flow when the fluid flows in the opposite direction. The opening and closing piece is opened or closed by the medium flow and force to prevent the medium from flowing backwards. The check valve belongs to the automatic valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to one direction to prevent the accident.

However, the technical scheme has the problems that the check valve has large head loss, serious energy waste and large noise in the using process due to simple structure, the normal operation of surrounding operators is influenced, impurities are blocked easily, the sealing is not thorough enough, and the service life of equipment is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single diaphragm slows down closed noise elimination check valve, it is big to aim at solving the in-process head loss that exists the check valve and using among the prior art, and the energy waste is serious, and the noise is big, very influences operation personnel's normal operation on every side, blocks up impurity easily, causes sealed thoroughly inadequately easily for the short problem of life of equipment.

In order to achieve the above object, the utility model provides a following technical scheme: a single-diaphragm slow-closing type silencing check valve comprises a main valve pipe, wherein a control screw seat is fixedly connected to the outer wall of the main valve pipe, a control screw rod is movably connected to the inner wall of the control screw seat, a rotary valve button is fixedly connected to the upper end of the control screw rod, a protective sleeve is movably connected to the outer wall of the control screw rod, a protective seat is fixedly connected to the outer wall of the control screw seat, through holes are formed in the middle portions of the protective sleeve and the protective seat, a fixing bolt is fixedly connected to the middle portion of the through hole, a nut is fixedly connected to the outer wall of the fixing bolt, a diaphragm is arranged on the inner wall of the main valve pipe, a water blocking block is fixedly connected to the middle portion of the main valve pipe, middle pipes are fixedly connected to the left side and the right side of the main valve pipe, a mounting groove is formed in the middle portion of each middle pipe, a thread groove is formed in one side of the mounting groove, and a filter pipe is movably connected to the inside of the mounting groove, and the inner part of the thread groove is engaged and connected with a connecting pipe.

In order to make this kind of single diaphragm slow-closing formula noise elimination check valve reach the effect etc. of improve equipment use quality safety, conduct the utility model relates to an it is preferred, control screw's lower surface and the upper surface of the piece that blocks water are the arcwall face, the material of diaphragm is rubber.

In order to make this kind of single diaphragm slow-closure formula noise elimination check valve reach and prevent fixed smooth silk, avoid influencing the effect that equipment used, conduct the utility model relates to an it is preferred, one side of nut is provided with the gasket.

In order to make this kind of single diaphragm slow-closing type noise elimination check valve reach improve equipment sealing performance's effect, conduct the utility model relates to an it is preferred, the inner wall of protection seat is provided with the sealing washer.

In order to make this kind of single diaphragm slow-closure formula noise elimination check valve reach the effect of effective filtration impurity, conduct the utility model relates to an it is preferred, the inner diapire of chimney filter is provided with the filter screen.

In order to make this kind of single diaphragm slow-closing formula noise elimination check valve reach and reduce head loss, the effect of noise reduction, as the utility model relates to an it is preferred, the flowing water chamber has been seted up at the middle part of connecting pipe, the quantity in flowing water chamber is a plurality of.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this single diaphragm slow-closing type noise elimination check valve, through the control screw seat, control screw, the rotary valve button, the lag, the protection seat, fixing bolt, the nut, the cooperation setting of diaphragm and the piece that blocks water, twist the rotary valve button during the use, decide the volume of nibbling of control screw seat and control screw, thereby can control the diaphragm and the contact that blocks water the piece, make things convenient for slow control check valve work, conveniently combine lag and protection seat mutually through fixing bolt and nut, it can prevent the flood peak loss to set up like this, it is extravagant to alleviate the energy, improve sealed effect, increase equipment life, control screw's lower surface and the upper surface that blocks water the piece are the arcwall face, the material of diaphragm is rubber, can improve equipment use quality safety like this.

2. This single diaphragm slows down closed noise elimination check valve sets up through the cooperation in gasket, sealing washer, filter screen and flowing water chamber, and the gasket can prevent fixed smooth silk during the use, avoids influencing the equipment use, and the sealing washer can improve equipment sealing performance, reduces the loss of head, and the filter screen can effectively filter impurity, prevents that the impurity card from blockking up, avoids influencing the use, and a plurality of flowing water chambeies can reduce the loss of head, noise abatement, improve equipment practicality.

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 diagram of the explosion structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a main valve tube according to the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1;

fig. 4 is an enlarged schematic structural diagram of the present invention at B in fig. 1.

In the figure: 1. a main valve tube; 2. a control screw seat; 3. controlling the screw; 4. rotating the valve knob; 5. a protective sleeve; 6. a protective seat; 7. a through hole; 8. fixing the bolt; 9. a nut; 10. a gasket; 11. a seal ring; 12. a diaphragm; 13. a water blocking block; 14. an intermediate pipe; 15. mounting grooves; 16. a thread groove; 17. a filter tube; 18. filtering with a screen; 19. a connecting pipe; 20. a flowing water cavity.

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.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: a single-diaphragm slow-closing type silencing check valve comprises a main valve pipe 1, wherein the outer wall of the main valve pipe 1 is fixedly connected with a control screw seat 2, the inner wall of the control screw seat 2 is movably connected with a control screw 3, the upper end of the control screw 3 is fixedly connected with a rotary valve button 4, the outer wall of the control screw 3 is movably connected with a protective sleeve 5, the outer wall of the control screw seat 2 is fixedly connected with a protective seat 6, the middle parts of the protective sleeve 5 and the protective seat 6 are respectively provided with a through hole 7, the middle part of the through hole 7 is fixedly connected with a fixing bolt 8, the outer wall of the fixing bolt 8 is fixedly connected with a nut 9, the inner wall of the main valve pipe 1 is provided with a diaphragm 12, the middle part of the main valve pipe 1 is fixedly connected with a water blocking block 13, the left side and the right side of the main valve pipe 1 are respectively fixedly connected with an intermediate pipe 14, the middle part of, the inner engagement of the thread groove 16 is connected with a connecting pipe 19.

The utility model discloses an in the concrete embodiment, through control screw seat 2, control screw 3, rotary valve button 4, lag 5, protection seat 6, fixing bolt 8, nut 9, diaphragm 12 and the cooperation setting of the piece 13 that blocks water, twist rotary valve button 4 during the use, decide the volume of nibbling of control screw seat 2 and control screw 3, thereby can control diaphragm 12 and the contact of the piece 13 that blocks water, convenient slow control check valve work, conveniently combine together lag 5 and protection seat 6 through fixing bolt 8 and nut 9, set up like this and can prevent the flood peak loss, it is extravagant to alleviate the energy, improve sealed effect, increase equipment life.

Specifically, the lower surface of the control screw 3 and the upper surface of the water blocking block 13 are both arc-shaped surfaces, and the diaphragm 12 is made of rubber.

In this embodiment: through the setting of control screw 3, diaphragm 12 and the piece 13 that blocks water, the lower surface of control screw 3 and the upper surface of the piece 13 that blocks water are the arcwall face, and the material of diaphragm 12 is rubber, can improve equipment use quality safety like this.

Specifically, a gasket 10 is provided on one side of the nut 9.

In this embodiment: through the setting of gasket 10, gasket 10 can prevent fixed smooth silk, avoids influencing equipment and uses.

Specifically, the inner wall of the protection seat 6 is provided with a sealing ring 11.

In this embodiment: through the setting of sealing washer 11, sealing washer 11 can improve equipment sealing performance, reduces head loss.

Specifically, the inner bottom wall of the filter tube 17 is provided with a filter screen 18.

In this embodiment: through the setting of filter screen 18, filter screen 18 can effectively filter impurity during the use, prevents that impurity card is stifled, avoids influencing the use.

Specifically, the middle of the connecting pipe 19 is provided with a plurality of water flowing cavities 20, and the number of the water flowing cavities 20 is multiple.

In this embodiment: through the setting of flowing water chamber 20, a plurality of flowing water chambers 20 can reduce head loss, reduce the noise, improve equipment practicality.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

The utility model discloses a theory of operation and use flow: when the single-diaphragm slow-closing type silencing check valve is used, the rotary valve button 4 is screwed to determine the meshing amount of the control screw seat 2 and the control screw 3, so that the contact between the diaphragm 12 and the water blocking block 13 can be controlled, the check valve is convenient to control slowly to work, the protecting sleeve 5 and the protecting seat 6 are conveniently combined through the fixing bolt 8 and the nut 9, the water head loss can be prevented, the energy waste is reduced, the sealing effect is improved, the service life of equipment is prolonged, the lower surface of the control screw 3 and the upper surface of the water blocking block 13 are both arc surfaces, and the diaphragm 12 is made of rubber, so that the use quality safety of the equipment can be improved; gasket 10 can prevent fixed smooth silk, avoids influencing the equipment use, and sealing washer 11 can improve equipment sealing performance, reduces head loss, and filter screen 18 can effectively filter impurity, prevents that the impurity card is stifled, avoids influencing the use, and a plurality of flowing water chambeies 20 can reduce head loss, reduce the noise, improve equipment practicality.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a single diaphragm slowly closes formula noise elimination check valve, includes main valve pipe (1), its characterized in that: the outer wall of the main valve pipe (1) is fixedly connected with a control screw seat (2), the inner wall of the control screw seat (2) is movably connected with a control screw (3), the upper end of the control screw (3) is fixedly connected with a rotary valve button (4), the outer wall of the control screw (3) is movably connected with a protective sleeve (5), the outer wall of the control screw seat (2) is fixedly connected with a protective seat (6), through holes (7) are formed in the middle of the protective sleeve (5) and the protective seat (6), fixing bolts (8) are fixedly connected with the middle of the through holes (7), nuts (9) are fixedly connected with the outer wall of the fixing bolts (8), a diaphragm (12) is arranged on the inner wall of the main valve pipe (1), a water blocking block (13) is fixedly connected with the middle of the main valve pipe (1), and middle pipes (14) are fixedly connected with the left side and the right side of the main valve pipe (1), the middle part of the middle pipe (14) is provided with an installation groove (15), one side of the installation groove (15) is provided with a thread groove (16), the inside of the installation groove (15) is movably connected with a filter pipe (17), and the inside of the thread groove (16) is meshed with a connecting pipe (19).

2. The single diaphragm slow closing type muffling check valve of claim 1, wherein: the lower surface of the control screw rod (3) and the upper surface of the water blocking block (13) are arc-shaped surfaces, and the diaphragm (12) is made of rubber.

3. The single diaphragm slow closing type muffling check valve of claim 1, wherein: and a gasket (10) is arranged on one side of the screw cap (9).

4. The single diaphragm slow closing type muffling check valve of claim 1, wherein: and a sealing ring (11) is arranged on the inner wall of the protection seat (6).

5. The single diaphragm slow closing type muffling check valve of claim 1, wherein: the inner bottom wall of the filter tube (17) is provided with a filter screen (18).

6. The single diaphragm slow closing type muffling check valve of claim 1, wherein: the middle part of the connecting pipe (19) is provided with a plurality of flowing water cavities (20), and the number of the flowing water cavities (20) is multiple.