CN220302839U - High water level inlet valve - Google Patents

Abstract

The utility model discloses a high water level water inlet valve, which comprises a valve body, wherein a connecting piece is arranged above the valve body, a water inlet pipe is arranged below the valve body in a penetrating way, a water outlet pipe is arranged on one side of the valve body in a penetrating way, a bearing is arranged above the connecting piece, a screw is arranged inside the bearing, the lower end of the screw is connected with a threaded sleeve in a penetrating way in an internal threaded way, the lower end of the threaded sleeve is fixedly connected with a sealing plate, the inner side of the water inlet pipe is fixedly connected with a sealing seat, the sealing plate corresponds to the sealing seat, the threaded assembly is arranged to enable the screw to rotate to drive the threaded sleeve and the sealing plate to move up and down, water inflow inside the valve body is controlled, when water flows back, the sealing effect of the water is realized through the cooperation between the sealing plate and the sealing seat, and therefore, the water flowing back cannot enter a pipeline through the water inlet pipe, and domestic water cannot be influenced.

Description

High water level inlet valve

Technical Field

The utility model relates to the field of water inlet valves, in particular to a high-water-level water inlet valve.

Background

In a water turbine land water passing system, corresponding gates or valves are arranged at different positions according to the operation and maintenance requirements of a hydropower station, the valve arranged in front of a spiral casing of the water turbine is generally called a water inlet valve, and the traditional water inlet valve does not have the functions of controlling water inflow and preventing water backflow, so that maintenance is inconvenient, and a main valve needs to be closed for maintenance; countercurrent generally occurs in abnormal conditions, such as unreasonable construction of building pipelines or water is instantaneously backflushed to enter a valve core under the condition that a water pump is not reasonably used in construction, and the countercurrent water is provided with a lot of dirt, so that not only can the through hole of a delay flushing valve be blocked, but also the valve of the flushing valve is communicated with a clean ponding pipeline, and the countercurrent water can pollute the water quality of the pipeline and affect normal domestic water.

Disclosure of Invention

The utility model aims to provide a high-water-level water inlet valve, which solves the problems that the traditional water inlet valve in the prior art does not have the functions of controlling water inflow and preventing water from flowing back, so that maintenance is inconvenient and the main valve is required to be closed for maintenance.

In order to achieve the purpose, the high-water-level water inlet valve comprises a valve body, wherein a connecting piece is arranged above the valve body, a water inlet pipe is arranged below the valve body in a penetrating manner, a water outlet pipe is arranged on one side of the valve body in a penetrating manner, a bearing is arranged above the connecting piece, a screw is arranged in the bearing, and the lower end of the screw is connected with a screw sleeve in a penetrating manner through an inward thread manner;

the lower end of the screw sleeve is fixedly connected with a sealing plate, the inner side of the water inlet pipe is fixedly connected with a sealing seat, and the sealing plate corresponds to the sealing seat.

As a further description of the above technical solution: the inner side upper end fixedly connected with telescopic link of connecting piece, the extension end fixedly connected with second connecting plate of telescopic link, the outside fixedly connected with first connecting plate of swivel nut, the both ends and the second connecting plate fixed connection of first connecting plate.

As a further description of the above technical solution: the outside of outlet pipe is provided with flange, flange's inside corresponds and is provided with the connecting pipe.

As a further description of the above technical solution: the inner side of the connecting flange is fixedly connected with a fixing ring, and a limiting groove is formed in the inner side of the fixing ring.

As a further description of the above technical solution: the inside of spacing groove corresponds and is provided with the stopper, the inboard fixedly connected with filter screen of stopper, stopper and the inside threaded connection of spacing groove have mounting bolt.

The utility model has the following beneficial effects:

1. compared with the prior art, the high-water-level water inlet valve has the advantages that the threaded assembly is arranged, so that the threaded rod can rotate to drive the threaded sleeve and the sealing plate to move up and down, the water inflow in the valve body is controlled, when water flows back, the water flows back from the water outlet pipe, the sealing effect is realized through the cooperation between the sealing plate and the sealing seat, and therefore the water flowing back cannot enter a pipeline through the water inlet pipe, and domestic water cannot be influenced;

2. compared with the prior art, the high-water-level water inlet valve has the advantages that the filter screen assembly is arranged in the water inlet pipe connecting flange, impurities in water can be prevented from entering the valve body to damage the valve body, and the detachable structure can be convenient for workers to replace and clean the valve body regularly.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further illustrated by the following figures and examples;

FIG. 1 is a schematic view of the overall structure of a high level inlet valve of the present utility model;

FIG. 2 is a cross-sectional view of a high level inlet valve of the present utility model;

FIG. 3 is a schematic view of a flange of a high level inlet valve according to the present utility model;

FIG. 4 is a schematic diagram of a screen assembly of a high level inlet valve according to the present utility model.

Legend description:

1. a connecting piece; 2. installing a bolt; 3. a valve body; 4. a water inlet pipe; 5. a water outlet pipe; 6. a connecting pipe; 7. a connecting flange; 8. a bearing; 9. a screw; 10. a first connection plate; 11. a screw sleeve; 12. a sealing seat; 13. a sealing plate; 14. a second connecting plate; 15. a telescopic rod; 16. a limit groove; 17. a fixing ring; 18. a limiting block; 19. and (5) a filter screen.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides a high water level water intaking valve, including valve body 3, the top of valve body 3 is provided with connecting piece 1, the below of valve body 3 runs through and is provided with inlet tube 4, inlet tube 4 can be to the inside of valve body 3 intaking, one side of valve body 3 runs through and is provided with outlet pipe 5, the top of connecting piece 1 is provided with bearing 8, the inside of bearing 8 is provided with screw rod 9, can make screw rod 9 carry out stable rotation in the inside of connecting piece 1 through bearing 8, and the junction of bearing 8 and connecting piece 1 is provided with seal structure and ensures the leakproofness between the two, the lower extreme of screw rod 9 runs through to the internal thread connection have swivel nut 11;

the lower end of the swivel nut 11 is fixedly connected with a sealing plate 13, the inner side of the water inlet pipe 4 is fixedly connected with a sealing seat 12, the sealing plate 13 corresponds to the sealing seat 12, the upper end of the inner side of the connecting piece 1 is fixedly connected with a telescopic rod 15, the extending end of the telescopic rod 15 is fixedly connected with a second connecting plate 14, the outer side of the swivel nut 11 is fixedly connected with a first connecting plate 10, two ends of the first connecting plate 10 are fixedly connected with the second connecting plate 14, the second connecting plates 14 at two ends can limit the first connecting plate 10, under the action of threaded connection, the screw rod 9 rotates to enable the swivel nut 11 to drive the sealing plate 13 to move downwards, so that the sealing seat 12 below is matched to adjust the flow of the whole valve body 3, and when water flows back, water flows back from the water outlet pipe 5, the sealing effect is realized through the matching between the sealing plate 13 and the sealing seat 12, so that the water flowing back cannot enter a pipeline through the water inlet pipe 4, and domestic water cannot be influenced;

the outer sides of the water outlet pipe 5 and the water inlet pipe 4 are provided with connecting flanges 7, the inside of each connecting flange 7 is correspondingly provided with a connecting pipe 6, the water inlet end and the water outlet end of the water inlet valve can be stably connected with the external connecting pipe 6 through the connecting flanges 9,

the inboard fixedly connected with solid fixed ring 17 of flange 7, the inboard of solid fixed ring 17 is provided with spacing groove 16, the inside of spacing groove 16 corresponds and is provided with stopper 18, the inboard fixedly connected with filter screen 19 of stopper 18, stopper 18 and the inside threaded connection of spacing groove 16 have mounting bolt 2, the water of inlet tube 4 can be through the filtration of filter screen 19 in the in-process that enters into valve body 3, can avoid impurity in the water to enter into valve body 3 and cause the damage to it, and can carry out quick assembly disassembly work to filter screen 19 under the effect of spacing groove 16 and stopper 18, make things convenient for the staff to carry out periodic clearance to it, increase its filterable effect.

Working principle: when the device is used, the water inlet pipe 4 and the water outlet pipe 5 are connected with the external connecting pipe 6, so that the normal water supply effect is realized, when the flow of the whole valve body 3 is required to be controlled in the water supply process, the screw rod 9 above is rotated, the screw sleeve 11 can drive the sealing plate 13 to move downwards under the limit of the threaded connection and the telescopic rods 15 on the two sides, the screw sleeve 11 can drive the sealing plate 13 to move downwards, so that the flow of the whole valve body 3 is regulated by being matched with the sealing seat 12 below, when water flows reversely, the water flows reversely from the water outlet pipe 5, the sealing effect is realized through the matching between the sealing plate 13 and the sealing seat 12, and therefore, the water flowing reversely can not enter a pipeline through the water inlet pipe 4, and the domestic water is not influenced, meanwhile, the water in the water inlet pipe 4 can be filtered through the filter screen 19 in the process of entering the valve body 3, and the damage to the valve body 3 caused by impurities in the water can be avoided.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (5)

1. High water level inlet valve, including valve body (3), its characterized in that: the novel valve is characterized in that a connecting piece (1) is arranged above the valve body (3), a water inlet pipe (4) is arranged below the valve body (3) in a penetrating mode, a water outlet pipe (5) is arranged on one side of the valve body (3) in a penetrating mode, a bearing (8) is arranged above the connecting piece (1), a screw rod (9) is arranged inside the bearing (8), and a screw sleeve (11) is connected with the lower end of the screw rod (9) in a penetrating mode in an inward threaded mode;

the lower extreme fixedly connected with closing plate (13) of swivel nut (11), the inboard fixedly connected with seal seat (12) of inlet tube (4), and closing plate (13) and seal seat (12) correspond each other, the inboard upper end fixedly connected with telescopic link (15) of connecting piece (1), the extension of telescopic link (15) end fixedly connected with second connecting plate (14).

2. The high water level inlet valve according to claim 1, wherein a first connecting plate (10) is fixedly connected to the outer side of the screw sleeve (11), and two ends of the first connecting plate (10) are fixedly connected with a second connecting plate (14).

3. The high-water-level water inlet valve according to claim 1, wherein a connecting flange (7) is arranged on the outer sides of the water outlet pipe (5) and the water inlet pipe (4), and a connecting pipe (6) is correspondingly arranged inside the connecting flange (7).

4. A high water level inlet valve according to claim 3, characterized in that the inner side of the connecting flange (7) is fixedly connected with a fixing ring (17), and the inner side of the fixing ring (17) is provided with a limit groove (16).

5. The high water level water inlet valve according to claim 4, wherein a limiting block (18) is correspondingly arranged in the limiting groove (16), a filter screen (19) is fixedly connected to the inner side of the limiting block (18), and a mounting bolt (2) is connected to the limiting block (18) and the inner side of the limiting groove (16) in a threaded mode.