CN219639556U

CN219639556U - Large-caliber one-way check valve for power station

Info

Publication number: CN219639556U
Application number: CN202320480748.0U
Authority: CN
Inventors: 陈家胜; 王兵; 王泽�; 窦鹏帅
Original assignee: Tianjin International Machinery Group Co ltd
Current assignee: Tianjin International Machinery Group Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-09-05
Anticipated expiration: 2033-03-13

Abstract

The utility model discloses a large-caliber one-way check valve for a power station, which comprises a connecting pipe, wherein the bottom of the connecting pipe penetrates through and is fixedly connected with a inflow pipe, the top of the outer diameter of the connecting pipe is fixedly connected with a connecting block, the left side and the right side of the connecting block are fixedly connected with supporting plates, the top of the outer wall is rotatably connected with pressing plates, the opposite sides of the top of the two supporting plates are fixedly connected with pressing plates, the top of the connecting block is provided with a valve cover, the pressing plates and the top of the valve cover penetrate through and are provided with threaded holes, and the left side and the right side of the bottom of the inner diameter of the valve cover are fixedly connected with sub-clamping blocks. In the utility model, when the internal structure needs to be maintained and replaced, the rotating block is screwed out from the threaded hole, the pressing plate clamps the valve cover, then the pressing plate is rotated to the two sides of the valve cover, and then the valve cover is rotated, so that the clamping state of the sub-clamping block and the main clamping block is opened, and the internal structure can be replaced and maintained.

Description

Large-caliber one-way check valve for power station

Technical Field

The utility model relates to the field of one-way check valves, in particular to a large-caliber one-way check valve for a power station.

Background

In the process of using one-way check valves in power stations, the one-way check valves are widely used for controlling water flow, and are also called reverse flow valves, check valves, back pressure valves and one-way valves. The check valve is used in pipeline system and has the main functions of preventing medium from flowing back, preventing the reverse rotation of pump and its driving motor, and the release of medium in container.

At present, the one-way check valve is needed to be used for controlling the water flow in the process of using the one-way check valve in the power station operation, so that the use of a pipeline is convenient, but the existing one-way check valve can be damaged due to the fact that the internal structure of the existing one-way check valve is used for a long time, and the bolt is too much to use, so that the operation of dismounting and maintenance is not easy to perform, and the later use is affected.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a large-caliber one-way check valve for a power station.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a heavy-calibre one-way check valve for power station, includes the connecting pipe, the connecting pipe bottom runs through and fixedly connected with flows into the pipe, connecting pipe external diameter top fixedly connected with connecting block, the equal fixedly connected with in connecting block left and right sides, two the equal rotation in outer wall top is connected with the extension board, two the equal fixedly connected with clamp plate in opposite one side in extension board top, the connecting block top is provided with the valve gap, the clamp plate all runs through and is provided with the screw hole with the valve gap top, the equal fixedly connected with sub-fixture block in valve gap internal diameter bottom left and right sides, the equal fixedly connected with of connecting block internal diameter top left and right sides is female fixture block, connecting pipe internal diameter top is provided with the fixed plate, fixed plate bottom fixedly connected with spacing groove, fixed plate top central point puts the department fixedly connected with spring connector, spring connector bottom runs through and fixedly connected with branch, branch bottom fixedly connected with valve clack.

As a further description of the above technical solution:

and the left side of the inflow pipe is fixedly connected with a second flange.

As a further description of the above technical solution:

the right end of the outer diameter of the connecting pipe penetrates through and is fixedly connected with an outflow pipe, and the right side of the outflow pipe is fixedly connected with a first flange.

As a further description of the above technical solution:

the support plate is connected with a rotating shaft in a penetrating and rotating mode.

As a further description of the above technical solution:

the sub-clamping blocks are clamped with the mother clamping blocks.

As a further description of the above technical solution:

the top of the inner diameter of the inflow pipe is fixedly connected with a limiting ring, and the inner diameter of the limiting ring is provided with a valve clack.

As a further description of the above technical solution:

the inside diameter top of the limiting groove is provided with a spring connecting piece, and the limiting groove is connected with a supporting rod in a sliding mode.

As a further description of the above technical solution:

the two threaded hole inner diameters are in threaded connection with rotating blocks.

The utility model has the following beneficial effects:

in the utility model, when the internal structure needs to be maintained and replaced, the rotating block is screwed out from the threaded hole, the pressing plate clamps the valve cover, then the pressing plate is rotated to the two sides of the valve cover, and then the valve cover is rotated, so that the clamping state of the sub-clamping block and the main clamping block is opened, and the internal structure can be replaced and maintained.

Drawings

FIG. 1 is a perspective view of a large-caliber one-way check valve for a power station according to the present utility model;

FIG. 2 is a cross-sectional view of a large diameter one-way check valve for a power station according to the present utility model;

fig. 3 is a side view of a large-caliber one-way check valve for a power station according to the present utility model.

Legend description:

1. a connecting pipe; 2. an outflow tube; 3. a first flange; 4. a flow-in pipe; 5. a second flange; 6. a connecting block; 7. a valve cover; 8. a threaded hole; 9. a rotating block; 10. a pressing plate; 11. a support plate; 12. a fixing plate; 13. a rotating shaft; 14. a sub-clamping block; 15. a female clamping block; 16. a limit groove; 17. a limiting ring; 18. a valve flap; 19. a support rod; 20. a spring connector.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a heavy-calibre one-way check valve for power station, includes connecting pipe 1, connecting pipe 1 bottom runs through and fixedly connected with inflow pipe 4, and rivers flow from inflow pipe 4 in inflow pipe 1, and rivers impact valve clack 18 makes valve clack 18 carry out lifting work, connecting pipe 1 external diameter top fixedly connected with connecting block 6, connecting block 6 both sides all fixedly connected with 21, two 21 outer wall tops all rotate and are connected with extension board 11, two the opposite side of extension board 11 top all fixedly connected with clamp plate 10, connecting block 6 top is provided with valve gap 7, rotates clamp plate 10 to the both sides of valve gap 7 then, and secondly rotates valve gap 7, and sub-fixture block 14 and female fixture block 15 block joint state is opened, finally separates valve gap 7 and connecting block 6, clamp plate 10 and valve gap 7 top all run through and are provided with screw hole 8, the valve gap 7 internal diameter bottom left and right sides all fixedly connected with sub-fixture block 14, the equal fixedly connected with female fixture block 15 of connecting block 6 internal diameter top left and right sides, connecting pipe 1 internal diameter top is provided with fixed plate 12, fixed plate 12 bottom fixedly connected with spacing groove 16, fixed plate 12 top central point puts department fixedly connected with spring connector 20, and spring connector 20 atress is upwards flexible, and branch 19 and spring connector 20 work in spacing groove 16, play the limiting displacement, spring connector 20 bottom runs through and fixedly connected with branch 19, and when the discharge reduces, the force that valve clack 18 received reduces, will reset downwards, has branch 19 at the external diameter of valve clack 18, makes the leakproofness of valve clack 18 better, branch 19 bottom fixedly connected with valve clack 18.

The left side of the inflow pipe 4 is fixedly connected with a second flange 5, the right end of the outer diameter of the connecting pipe 1 penetrates through and is fixedly connected with an outflow pipe 2, the right side of the outflow pipe 2 is fixedly connected with a first flange 3, the first flange 3 and the second flange 5 are used for being connected with a pipeline, the transportation is convenient, a rotating shaft 13 penetrates through and is rotationally connected between the support plates 11 and 21, a sub clamping block 14 is clamped with a female clamping block 15, the top of the inner diameter of the inflow pipe 4 is fixedly connected with a limiting ring 17, the inner diameter of the limiting ring 17 is provided with a valve clack 18, the top of the inner diameter of the limiting groove 16 is provided with a spring connecting piece 20, the limiting groove 16 is slidably connected with a supporting rod 19, firstly, the rotating block 9 is manually screwed, the rotating block 9 is a protruding rotating piece, no tool assistance is needed, the direct manual screwing is performed, and the inner diameters of the two threaded holes 8 are both in threaded connection with the rotating block 9.

Working principle: when the one-way check valve is used in power station operation, water flows into the connecting pipe 1 from the inflow pipe 4, the water flows impact the valve clack 18, the valve clack 18 is lifted, the spring connector 20 is stressed to extend upwards, the supporting rod 19 and the spring connector 20 work in the limiting groove 16 to play a limiting role, when the water flow is reduced, the force born by the valve clack 18 is reduced, the supporting rod 19 is reset downwards, the sealing performance of the valve clack 18 is better, when the check valve is used for a long time, the internal structure needs to be maintained and replaced, the rotating block 9 is firstly manually screwed, the rotating block 9 is a protruding rotating piece, no tool assistance is needed, the pressing plate 10 is directly screwed manually, then the pressing plate 10 is rotated to two sides of the valve cover 7, the valve cover 7 is rotated, the clamping state of the sub clamping block 14 and the main clamping block 15 is opened, and finally the valve cover 7 is separated from the connecting block 6, so that the inside of the check valve can be maintained and replaced.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model 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, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a heavy-calibre one-way check valve for power station, includes connecting pipe (1), its characterized in that: connecting pipe (1) bottom runs through and fixedly connected with flows into pipe (4), connecting pipe (1) external diameter top fixedly connected with connecting block (6), connecting block (6) equal fixedly connected with (21) in left and right sides, two equal rotation in (21) outer wall top is connected with extension board (11), two equal fixedly connected with clamp plate (10) in opposite one side in extension board (11) top, connecting block (6) top is provided with valve gap (7), clamp plate (10) all run through and are provided with screw hole (8) with valve gap (7) top, equal fixedly connected with sub-fixture block (14) in valve gap (7) internal diameter bottom left and right sides, connecting pipe (6) internal diameter top left and right sides all fixedly connected with female fixture block (15), connecting pipe (1) internal diameter top is provided with fixed plate (12), fixed plate (12) bottom fixedly connected with spacing groove (16), fixed plate (12) top central point department fixedly connected with spring coupling piece (20), spring coupling piece (20) bottom runs through and is fixedly connected with branch (19), valve clack (18) bottom fixedly connected with valve clack (19).

2. A large diameter one-way check valve for a power station as defined in claim 1, wherein: the left side of the inflow pipe (4) is fixedly connected with a second flange (5).

3. A large diameter one-way check valve for a power station as defined in claim 1, wherein: the right end of the outer diameter of the connecting pipe (1) penetrates through and is fixedly connected with an outflow pipe (2), and the right side of the outflow pipe (2) is fixedly connected with a first flange (3).

4. A large diameter one-way check valve for a power station as defined in claim 1, wherein: a rotating shaft (13) penetrates through and is rotatably connected between the support plates (11) and (21).

5. A large diameter one-way check valve for a power station as defined in claim 1, wherein: the sub clamping blocks (14) are clamped with the mother clamping blocks (15).

6. A large diameter one-way check valve for a power station as defined in claim 1, wherein: the top of the inner diameter of the inflow pipe (4) is fixedly connected with a limiting ring (17), and the inner diameter of the limiting ring (17) is provided with a valve clack (18).

7. A large diameter one-way check valve for a power station as defined in claim 1, wherein: the top of the inner diameter of the limiting groove (16) is provided with a spring connecting piece (20), and the limiting groove (16) is connected with a supporting rod (19) in a sliding mode.

8. A large diameter one-way check valve for a power station as defined in claim 1, wherein: the inner diameters of the two threaded holes (8) are in threaded connection with a rotating block (9).