CN213332553U

CN213332553U - A anti-backflow device for rain, sewage treatment

Info

Publication number: CN213332553U
Application number: CN202022075798.XU
Authority: CN
Inventors: 宗福林; 宗丹
Original assignee: Nanjing Kaicheng Environmental Protection Technology Co ltd
Current assignee: Zhoukou Jinyuan Environmental Protection Industry Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-06-01
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a backflow preventing device for rain and sewage treatment, which relates to the technical field of sewage discharge facilities. The utility model discloses a casing, lid and valve body: a valve body is arranged in the shell; a limit ring is detachably arranged in the shell; a second baffle is arranged on one side of the limiting ring; the other side is provided with a plurality of springs; the first baffle is movably arranged in the shell and is propped against the spring; the first baffle plate and the second baffle plate are connected through a connecting rod; a sealing plate is also arranged in the shell; the sealing plate is clamped on the inner side wall of the shell; the cushion block, the spring washer and the clamping block are sequentially arranged on the outer side of the sealing plate from outside to inside; the cover body is arranged on the outer side of the cushion block and is connected with the shell through a connecting bolt. The utility model provides a prevent reflux unit for rain, sewage treatment, the condition that convenient clean maintenance, can effectively prevent to appear flowing backwards when rain, sewage treatment can be dismantled to its simple structure, sealing performance is good, inner structure.

Description

A anti-backflow device for rain, sewage treatment

Technical Field

The utility model belongs to the technical field of sewage discharge facility, concretely relates to a backflow device that prevents for rain, sewage treatment.

Background

In the rain and sewage treatment process, the water pump is generally used for extraction and transfer, so that the water pump is easy to cause the backflow of rain and sewage when the water pump stops working, the mutual pollution between the sewage is caused, the air environment is polluted, and a great deal of inconvenience is brought to the life of people. For this purpose, a backflow prevention device is generally provided in the pipeline.

For example, publication No. CN 203498986U discloses an antifouling water backflow device, and the device includes cross slab, valve gap, filter screen, arcwall face, connecting rod, recess, breast board, inlet tube, outlet pipe and lug. The device prevents water entering the device from flowing backwards through the matching of the convex block, the connecting rod and the arc-shaped surface. The arc-shaped surface of the device is a soft membrane, so that when the water pressure is too high, the soft membrane is turned over by water flow impact, the water flow is not blocked any more, and the soft membrane is not detachable.

To above circumstances, the anti-backflow device for rain and sewage treatment of the present demand has the advantages of simple structure, excellent sealing performance, detachable and convenient cleaning and maintenance of the internal structure, good anti-backflow effect, and can effectively prevent the occurrence of backflow during rain and sewage treatment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent flow reversal device for rain, sewage treatment realizes that simple structure, sealing performance are good, inner structure can dismantle convenient clean maintenance, prevent the effectual purpose of flow reversal, the condition that appears flowing backwards when can effectively preventing rain, sewage treatment.

The utility model provides a following technical scheme:

the utility model provides a prevent flow reversal device for rain, sewage treatment, includes casing, lid and valve body: a valve body is arranged in the shell; the valve body comprises a first baffle, a connecting rod and a second baffle; a limit ring is detachably arranged in the shell; the limiting ring is arranged inside the shell through a fixing bolt; a second baffle is arranged on one side of the limiting ring; the other side is provided with a plurality of springs; the first baffle is movably arranged in the shell and is abutted against the spring; the first baffle plate and the second baffle plate are connected through a connecting rod; the shell is provided with a water inlet.

A sealing plate is also arranged in the shell; the sealing plate is clamped on the inner side wall of the shell; the cushion block, the spring washer and the clamping block are sequentially arranged on the outer side of the sealing plate from outside to inside; the cover body is arranged on the outer side of the cushion block and is connected with the shell through a connecting bolt; the cover body is provided with a water outlet.

Preferably, a sliding groove is further formed in the shell; the first baffle plate can move in the sliding groove.

Preferably, a filter screen is arranged in the shell; the shell is also communicated with a waste discharge hole; the screw cap is installed on the periphery of the waste discharge hole through threaded connection.

Preferably, the cushion block, the spring washer and the clamping block are internally provided with cavities connected with the water outlet; the sealing plate is provided with a plurality of water holes.

Preferably, a gasket is arranged on the contact side of the first baffle and the shell; the gasket is provided with a hole communicated with the water inlet.

The utility model discloses a profitable effect:

the utility model is provided with the first baffle and the second baffle, and the design of the two baffles can ensure that the device has better anti-backflow effect; the cover body added in the device is connected with the shell through the bolt, so that the valve body part can be detached, the valve body is convenient to clean, and when the device has problems in use, the whole internal structure can be detached for maintenance; the filter screen and the waste discharge hole are additionally arranged in the shell, so that impurities in sewage can be filtered, and the influence of the impurities on the use due to the fact that the impurities are stirred into the valve body is avoided; the device is additionally provided with the cushion block, the gasket and the elastic washer, so that the device is good in sealing effect. The utility model discloses accomplished simple structure, sealing performance is good, inner structure can dismantle convenient clean maintenance, prevent that the refluence is effectual, the condition that appears flowing backwards when can effectively preventing rain, sewage treatment.

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 structural diagram of the present invention.

Description of reference numerals:

1. a water inlet; 2. a housing; 3. a gasket; 4. fixing the bolt; 5. a sealing plate; 6. a clamping block; 7. a cover body; 8. a water outlet; 9. cushion blocks; 10. a connecting bolt; 11. an elastic washer; 12. a valve body; 121. a second baffle; 122. a limiting ring; 123. a connecting rod; 124. a spring; 125. a first baffle plate; 13. filtering with a screen; 14. waste discharge holes; 15. and (5) screwing a cover.

Detailed Description

As shown in the figure, the backflow preventing device for rain and sewage treatment comprises a shell 2, a cover body 7 and a valve body 12: a valve body 12 is arranged in the shell 2; the valve body 12 includes a first barrier 125, a connecting rod 123, and a second barrier 121; a limit ring 122 is detachably mounted in the housing 2; the limiting ring 122 is installed inside the shell 2 through the fixing bolt 4; a second baffle 121 is arranged on one side of the limiting ring 122; the other side is provided with a plurality of springs 124; a first shutter 125 is movably mounted inside the casing 2 and is urged against the spring 124; a chute is arranged in the shell 2; the first baffle 125 is movable within the chute; the first baffle 125 and the second baffle 121 are connected through a connecting rod 123; the contact side of the first baffle 125 and the shell 2 is provided with a gasket 3; the gasket 3 is provided with a hole communicated with the water inlet 1; the shell 2 is provided with a water inlet 1; when the first baffle 125 reaches the position of contact with the gasket 3, the second baffle 121 just blocks the retainer ring 122.

A sealing plate 5 is also arranged in the shell 2; the sealing plate 5 is clamped on the inner side wall of the shell 2; the cushion block 9, the spring washer 11 and the fixture block 6 are sequentially arranged on the outer side of the sealing plate 5 from outside to inside; cavities connected with the water outlet 8 are arranged in the cushion block 9, the spring washer 11 and the fixture block 6; a plurality of water holes are arranged on the sealing plate 5; the cover body 7 is arranged on the outer side of the cushion block 9 and is connected with the shell 2 through a connecting bolt 10; the cover body 7 is provided with a water outlet 8.

A filter screen 13 is arranged in the shell 2; the shell 2 is also communicated with a waste discharge hole 14; the screw cap 15 is installed at the periphery of the waste discharge hole 14 by screw connection.

The utility model discloses a working method: a water inlet pipe is connected with a water inlet 1 of the device, and a water outlet pipe is connected with a water outlet 8; when no water enters the device, the first baffle 125 of the valve body 12 is clamped on the gasket 3 under the action of the spring 124, and the second baffle 121 is clamped on the limiting ring 122; when water enters the device, under the action of water pressure, the water flow jacks the valve body 12, so that the water flows from the water inlet 1 to the water outlet 8; if water wants to flow from the water outlet 8 to the water inlet 1, the valve body 12 blocks the water inlet 1 to prevent the water from flowing backwards.

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 prevent flow reversal device for rain, sewage treatment, includes casing (2), lid (7) and valve body (12), its characterized in that: a valve body (12) is arranged in the shell (2); the valve body (12) comprises a first baffle plate (125), a connecting rod (123) and a second baffle plate (121); a limiting ring (122) is detachably arranged in the shell (2); the limiting ring (122) is arranged inside the shell (2) through a fixing bolt (4); a second baffle plate (121) is arranged on one side of the limiting ring (122); the other side is provided with a plurality of springs (124); the first baffle (125) is movably arranged in the shell (2) and is propped against the spring (124); the first baffle (125) and the second baffle (121) are connected through a connecting rod (123); the shell (2) is provided with a water inlet (1);

a sealing plate (5) is also arranged in the shell (2); the sealing plate (5) is clamped on the inner side wall of the shell (2); the cushion block (9), the spring washer (11) and the fixture block (6) are sequentially arranged on the outer side of the sealing plate (5) from outside to inside; the cover body (7) is arranged on the outer side of the cushion block (9) and is connected with the shell (2) through a connecting bolt (10); the cover body (7) is provided with a water outlet (8).

2. The backflow prevention device for rain and sewage treatment according to claim 1, wherein: a sliding groove is also formed in the shell (2); the first baffle (125) is movable within the chute.

3. The backflow prevention device for rain and sewage treatment according to claim 1, wherein: a filter screen (13) is arranged in the shell (2); the shell (2) is also communicated with a waste discharge hole (14); the screw cap (15) is installed at the periphery of the waste discharge hole (14) through threaded connection.

4. The backflow prevention device for rain and sewage treatment according to claim 1, wherein: cavities connected with the water outlet (8) are formed in the cushion block (9), the spring washer (11) and the fixture block (6); the sealing plate (5) is provided with a plurality of water holes.

5. The backflow prevention device for rain and sewage treatment according to claim 1, wherein: a gasket (3) is arranged on the contact side of the first baffle (125) and the shell (2); the gasket (3) is provided with a hole communicated with the water inlet (1).