CN216306813U - Check valve structure - Google Patents
Check valve structure Download PDFInfo
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- CN216306813U CN216306813U CN202122747043.4U CN202122747043U CN216306813U CN 216306813 U CN216306813 U CN 216306813U CN 202122747043 U CN202122747043 U CN 202122747043U CN 216306813 U CN216306813 U CN 216306813U
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- shell
- water
- edge
- check valve
- wall
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Abstract
The utility model provides a check valve structure, which comprises a shell; the upper end and the lower end of the shell are provided with communicated openings; a second shell is arranged inside the shell; the inner wall of the shell is fixedly connected with a limiting ring at the lower end of the second shell; the edge of the surface of the second shell is fixedly connected with an edge plate; a spring is arranged between the edge plate and the limiting ring; the spring is fixedly connected with the edge plate and the limiting ring; the lower end of the second shell is provided with a second opening; the surface of the second shell is provided with a water inlet communicated with the second opening; two water inlets are symmetrically arranged at the left and the right; the inner wall of the second shell is fixedly connected with a water guide pipe; two ends of the water guide pipe are communicated with the water inlet; a water outlet is arranged on the water guide pipe; two seal plates are arranged in the water guide pipe; a second spring is arranged between the two sealing plates; a water flowing cavity is formed between the shell and the second shell, and two-time check is carried out, so that the backflow phenomenon is avoided to a certain extent.
Description
Technical Field
The present disclosure relates to check valve mechanisms, and particularly to a check valve mechanism.
Background
The check valve is a valve which is used for preventing medium from flowing backwards by automatically opening and closing a valve clack depending on the flowing of the medium, and is also called a check valve, a one-way valve, a reverse flow valve and a back pressure valve.
SUMMERY OF THE UTILITY MODEL
The check valve structure provided by the utility model is simple in structure and convenient to use, and can be used for twice check, so that the backflow phenomenon is avoided to a certain extent.
The utility model provides a check valve structure, which comprises a shell; the upper end and the lower end of the shell are provided with communicated openings; a second shell is arranged inside the shell; the inner wall of the shell is fixedly connected with a limiting ring at the lower end of the second shell; the edge of the surface of the second shell is fixedly connected with an edge plate; a spring is arranged between the edge plate and the limiting ring; the spring is fixedly connected with the edge plate and the limiting ring; the lower end of the second shell is provided with a second opening; the surface of the second shell is provided with a water inlet communicated with the second opening; two water inlets are symmetrically arranged at the left and the right; the inner wall of the second shell is fixedly connected with a water guide pipe; two ends of the water guide pipe are communicated with the water inlet; a water outlet is arranged on the water guide pipe; two seal plates are arranged in the water guide pipe; a second spring is arranged between the two sealing plates; and a water flowing cavity is formed between the shell and the second shell.
The springs are uniformly arranged in a rotating mode by taking the central position of the limiting ring as a reference.
The spring and the second spring are in a compressed state.
The inner wall of the second shell is provided with an edge groove communicated with the edge of the water inlet; one end of the sealing plate is arranged in the edge groove.
The upper end surface of the second shell is fixedly connected with a second edge plate; a second edge plate annular limiting groove is formed in the inner wall of the shell; the second edge plate is arranged in the second edge plate annular limiting groove.
The center position of the edge groove and the center position of the water inlet are on the same horizontal line.
And the top end of the inner wall of the shell is attached to the top end of the inner wall of the second shell.
The edge plate is attached to the inner wall of the shell.
The utility model has the beneficial effects that: the check valve structure provided by the utility model is simple in structure and convenient to use, and can be used for twice check, so that the backflow phenomenon is avoided to a certain extent.
Drawings
FIG. 1 is a cross-sectional view of a check valve construction of the present invention.
FIG. 2 is a cross-sectional view of a water outlet of a check valve structure of the present invention.
Fig. 3 is a cross-sectional view of a second housing of a check valve arrangement of the present invention.
(1, shell; 2, opening; 3, second shell; 4, limiting ring; 5, edge plate; 6, spring; 7, second opening; 8, water inlet; 9, water guide pipe; 10, water outlet; 11, sealing plate; 12, second spring; 13, water flowing cavity; 14, edge groove; 15, second edge plate; 16, second edge plate annular limiting groove)
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
According to one of the check valve constructions shown in fig. 1, 2, 3, a housing 1 is comprised; the upper end and the lower end of the shell 1 are provided with communicated openings 2; a second shell 3 is arranged inside the shell 1; the inner wall of the shell 1 is fixedly connected with a limiting ring 4 at the lower end of the second shell 3; the edge of the surface of the second shell 3 is fixedly connected with an edge plate 5; a spring 6 is arranged between the edge plate 5 and the limit ring 4; the spring 6 is fixedly connected with the edge plate 5 and the limiting ring 4; the lower end of the second shell 3 is provided with a second opening 7; the surface of the second shell 3 is provided with a water inlet 8 communicated with the second opening 7; two water inlets 8 are symmetrically arranged at the left and the right; the inner wall of the second shell 3 is fixedly connected with a water guide pipe 9; two ends of the water guide pipe 9 are communicated with the water inlet 8; a water outlet 10 is arranged on the water guide pipe 9; two seal plates 11 are arranged in the water guide pipe 9; a second spring 12 is arranged between the two closing plates 11; a water flowing cavity 13 is formed between the shell 1 and the second shell 3.
A plurality of springs 6 are uniformly arranged in a rotating mode by taking the central position of the limiting ring 4 as a reference.
The spring 6 and the second spring 12 are in a compressed state.
The inner wall of the second shell 3 is provided with an edge groove 14 communicated with the edge of the water inlet 8; the closure plate 11 is located at one end in the edge groove 14.
The upper end surface of the second shell 3 is fixedly connected with a second edge plate 15; a second edge plate annular limiting groove 16 is formed in the inner wall of the shell 1; the second edge plate 15 is arranged in a second edge plate annular limiting groove 16.
The center position of the edge groove 14 and the center position of the water inlet 8 are on the same horizontal line.
The top end of the inner wall of the shell 1 is attached to the top end of the inner wall of the second shell 3.
The edge plate 5 of the utility model is jointed with the inner wall of the shell 1.
The principle of the utility model is as follows: when the water injection device is used, water flows in from the opening 2 at the upper end to impact the second shell 3, the second shell 3 is impacted by the water flow and moves downwards, the spring 6 is compressed, the water flow enters the water flowing cavity 13 from the opening 2 at the upper end, the water in the water flowing cavity 13 extrudes the sealing plates 11, the second spring 12 is compressed, the two sealing plates 11 are close to each other, the water flow enters the water guide pipe 9 through the water inlet 8 and then flows out through the water outlet 10 through the opening 2 at the lower end, when the water injection is stopped, the second shell 3 is not extruded any more, under the action of the elastic force of the spring 6, the second edge plate 15 enters the second edge plate annular limiting groove 16, the top end of the inner wall of the shell 1 is attached to the top end of the inner wall of the second shell 3 to be sealed, the sealing plates 11 enter the edge groove 14 under the action of the elastic force of the second spring 12, the sealing plates 11 block the water inlet 8 to block the water inlet 8, and prevent the water from entering the water flowing cavity 13 through the water inlet 8, then flows out from the opening 2 at the upper end, the second edge plate 15 is arranged in the annular limiting groove 16 of the second edge plate, and one end of the sealing plate 11 is arranged in the edge groove 14, so that a better sealing effect is achieved.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model, and it is intended that the scope of the utility model be defined by the appended claims.
Claims (8)
1. A check valve structure characterized by: comprises a shell (1); the upper end and the lower end of the shell (1) are provided with communicated openings (2); a second shell (3) is arranged in the shell (1); the inner wall of the shell (1) is fixedly connected with a limiting ring (4) at the lower end of the second shell (3); the edge of the surface of the second shell (3) is fixedly connected with an edge plate (5); a spring (6) is arranged between the edge plate (5) and the limiting ring (4); the spring (6) is fixedly connected with the edge plate (5) and the limiting ring (4); a second opening (7) is formed in the lower end of the second shell (3); a water inlet (8) communicated with the second opening (7) is formed in the surface of the second shell (3); two water inlets (8) are symmetrically arranged at the left and the right; the inner wall of the second shell (3) is fixedly connected with a water guide pipe (9); two ends of the water guide pipe (9) are communicated with the water inlet (8); a water outlet (10) is arranged on the water guide pipe (9); two seal plates (11) are arranged in the water guide pipe (9); a second spring (12) is arranged between the two sealing plates (11); a water flowing cavity (13) is formed between the shell (1) and the second shell (3).
2. A check valve construction according to claim 1 wherein: the springs (6) are uniformly arranged in a rotating mode by taking the central position of the limiting ring (4) as a reference.
3. A check valve construction according to claim 1 wherein: the spring (6) and the second spring (12) are in a compressed state.
4. A check valve construction according to claim 1 wherein: an edge groove (14) communicated with the edge of the water inlet (8) is formed in the inner wall of the second shell (3); one end of the sealing plate (11) is arranged in the edge groove (14).
5. A check valve construction according to claim 1 wherein: a second edge plate (15) is fixedly connected to the upper end surface of the second shell (3); a second edge plate annular limiting groove (16) is formed in the inner wall of the shell (1); the second edge plate (15) is arranged in the second edge plate annular limiting groove (16).
6. A check valve construction according to claim 4 wherein: the central position of the edge groove (14) and the central position of the water inlet (8) are on the same horizontal line.
7. A check valve construction according to claim 1 wherein: the top end of the inner wall of the shell (1) is attached to the top end of the inner wall of the second shell (3).
8. A check valve construction according to claim 1 wherein: the edge plate (5) is attached to the inner wall of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122747043.4U CN216306813U (en) | 2021-11-11 | 2021-11-11 | Check valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122747043.4U CN216306813U (en) | 2021-11-11 | 2021-11-11 | Check valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216306813U true CN216306813U (en) | 2022-04-15 |
Family
ID=81120329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122747043.4U Active CN216306813U (en) | 2021-11-11 | 2021-11-11 | Check valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216306813U (en) |
-
2021
- 2021-11-11 CN CN202122747043.4U patent/CN216306813U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |