CN217401806U - One-way valve with backflow prevention function - Google Patents
One-way valve with backflow prevention function Download PDFInfo
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- CN217401806U CN217401806U CN202221450468.7U CN202221450468U CN217401806U CN 217401806 U CN217401806 U CN 217401806U CN 202221450468 U CN202221450468 U CN 202221450468U CN 217401806 U CN217401806 U CN 217401806U
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- backflow prevention
- pipeline
- backflow
- check valve
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Abstract
The utility model discloses a check valve with a backflow prevention function, belonging to the technical field of check valves and comprising a check valve body; the backflow preventing assembly comprises a backflow preventing pipeline, a sealing ring, a sealing cover, a rotating rod, a connecting plate, a torsion spring and a rotating ring, the backflow preventing pipeline is connected to the output end of the one-way valve body through threads, a cavity is formed in the backflow preventing pipeline, the sealing ring is fixedly connected to the inner wall of one side of the backflow preventing pipeline, and the sealing cover is connected to the inner wall of one side of the backflow preventing pipeline through rotation of the rotating shaft. This check valve that possesses anti-backflow function plays the effect of anti-backflow through the opening and shutting of closing cap, can avoid water from flowing backwards in the water pipe and worry that the valve is originally internal to continue the effect of check valve, the torsional spring is used for maintaining the standby position of closing cap, and the spring carries out the rigidity with adjustable shelf and sliding plate, and the fly leaf will play the control of support to anti-backflow pipeline, improves its stability and security.
Description
Technical Field
The utility model relates to a check valve technical field, more specifically says, relates to a check valve that possesses anti-backflow function.
Background
The check valve is commonly called as a check valve, fluid can only flow along the water inlet, and the medium at the water outlet cannot flow back. Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems. The one-way valve has a straight-through type and a right-angle type. The straight-through one-way valve is installed on the pipeline by threaded connection. The right-angle check valve has three forms of threaded connection, plate connection and flange connection.
When using, the existing check valve is usually only connected to a pipeline through threads without additional protection, and when the existing check valve is used for a long time, the connection point is easy to damage due to gravity or external contact, and meanwhile, when the existing check valve is damaged, the existing check valve needs to be replaced, but sometimes the existing check valve is difficult to replace, and meanwhile, the existing check valve is also high in value and not beneficial to maintenance and maintenance operation.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, an object of the utility model is to provide a check valve that possesses function of preventing flowing backwards, the effect of preventing flowing backwards is played through the opening and shutting of closing cap, can avoid water from flowing backwards from the water pipe and go into worry valve originally internal, thereby continue the effect of check valve, the torsional spring is used for maintaining the standby position of closing cap, the spring carries out rigidity with adjustable shelf and sliding plate, the fly leaf will play the left and right sides of support to preventing flowing backwards pipeline, improve its stability and security, do not influence its normal installation and use simultaneously.
In order to solve the above problem, the utility model adopts the following technical scheme:
a check valve with a backflow prevention function includes: a check valve body; the backflow prevention assembly comprises a backflow prevention pipeline, a sealing ring, a sealing cover, a rotating rod, a connecting plate, a torsional spring and a rotating ring, the backflow prevention pipeline is connected to the output end of the one-way valve body through threads, a cavity is formed in the backflow prevention pipeline, the sealing ring is fixedly connected to the inner wall of one side of the backflow prevention pipeline, the sealing cover is rotatably connected to the inner wall of one side of the backflow prevention pipeline through a rotating shaft, the rotating rod is fixedly connected to one end of the rotating shaft, the rotating rod movably penetrates through the backflow prevention pipeline, the connecting plate is fixedly connected to the outer wall of one side of the backflow prevention pipeline, one end of the rotating rod is rotatably connected with the outer wall of one side of the connecting plate, the torsional spring is sleeved on the outer wall of the rotating rod, the rotating ring is sleeved on the outer wall of the rotating rod, a convex plate is arranged on the outer wall of one side of the rotating ring in an extending mode, and the convex plate is matched with the torsional spring; and two firm subassemblies, two firm subassemblies all fixed connection in one side outer wall of anti-backflow pipeline for improve its stability after the installation.
As a preferred scheme of the utility model, two firm subassembly all includes mounting bracket, slide bar, adjustable shelf and two sliding plates, the mounting bracket extends to set up in one side outer wall of anti-backflow pipeline, slide bar fixed connection is in one side outer wall of mounting bracket, the outer wall of slide bar, two are located to the adjustable shelf movable sleeve the equal fixed connection of sliding plate is in the bottom of adjustable shelf.
As a preferred scheme of the utility model, two the outer wall of slide bar all overlaps and is equipped with the spring, two the equal fixedly connected with restriction piece of one end of slide bar.
As an optimized proposal of the utility model, a display groove is arranged on the outer wall of one side of the connecting plate.
As an optimized scheme of the utility model, the one end extension of flange is provided with the extension rod, extension rod and show groove cooperation.
As an optimized scheme of the utility model, one side outer wall extension of anti-backflow pipeline is provided with the output tube, the inner wall of output tube is seted up threadedly.
Advantageous effects
Compared with the prior art, the utility model provides a check valve that possesses anti-backflow function has following beneficial effect:
in this scheme, play the effect of preventing flowing backwards through opening and shutting of closing cap, can avoid water to flow backwards into worry valve from the water pipe this internally to continue the effect of check valve, the torsional spring is used for maintaining the standby position of closing cap, and the spring carries out the rigidity with adjustable shelf and sliding plate, and the fly leaf will play the left and right sides of support to preventing flowing backwards pipeline, improves its stability and security, does not influence its normal installation and use simultaneously.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the backflow prevention pipeline of the present invention;
FIG. 3 is a cross-sectional perspective view of the backflow prevention pipeline of the present invention;
figure 4 is a perspective view of the connector tile of the present invention.
The reference numbers in the figures illustrate:
1. a check valve body; 2. a backflow prevention pipeline; 3. a closed ring; 4. a closure cap; 5. a rotating rod; 6. a connector tile; 7. a torsion spring; 8. rotating the ring; 9. a convex plate; 10. a mounting frame; 11. a slide bar; 12. a movable frame; 13. a sliding plate; 14. a spring.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
Example (b):
referring to fig. 1 to 4, a check valve with a backflow prevention function includes: a check valve body 1; the backflow prevention assembly comprises a backflow prevention pipeline 2, a sealing ring 3, a sealing cover 4, a rotating rod 5, a connecting plate 6, a torsional spring 7 and a rotating ring 8, wherein the backflow prevention pipeline 2 is connected to the output end of the one-way valve body 1 through threads, a cavity is formed in the backflow prevention pipeline 2, the sealing ring 3 is fixedly connected to the inner wall of one side of the backflow prevention pipeline 2, the sealing cover 4 is rotatably connected to the inner wall of one side of the backflow prevention pipeline 2 through a rotating shaft, the rotating rod 5 is fixedly connected to one end of the rotating shaft, the rotating rod 5 movably penetrates through the backflow prevention pipeline 2, the connecting plate 6 is fixedly connected to the outer wall of one side of the backflow prevention pipeline 2, one end of the rotating rod 5 is rotatably connected with the outer wall of one side of the connecting plate 6, the torsion spring 7 is sleeved on the outer wall of the rotating rod 5, the rotating ring 8 is sleeved on the outer wall of the rotating rod 5, the outer wall of one side of the rotating ring 8 is provided with a convex plate 9 in an extending mode, and the convex plate 9 is matched with the torsion spring 7; and two firm subassemblies, two firm subassemblies all fixed connection in one side outer wall of anti-backflow pipeline 2 for improve its stability after the installation.
In the embodiment, by connecting the backflow prevention pipeline 2 to the output end of the check valve body 1, when the water flow in the check valve body 1 flows into the backflow prevention pipeline 2, the sealing cover 4 is pushed to rotate along the rotating shaft, wherein the sealing cover 4 is connected to the inner wall of the backflow prevention pipeline 2 through a hinge, the rotating shaft belongs to one part of the hinge, when the sealing cover 4 rotates, the rotating rod 5 rotates along the rotating shaft and drives the convex plate 9 to compress the torsion spring 7, the water flow flows out from the backflow prevention pipeline 2, when the water flow stops, the torsion spring 7 pushes the convex plate 9 to return again, at the moment, the sealing cover 4 seals the backflow prevention pipeline 2, at the moment, the water flow cannot pass through the backflow prevention pipeline 2 reversely, so as to avoid the backflow during the installation, when the backflow prevention pipeline 2 is installed, the movable frame 12 is pulled backwards manually to compress the spring 14, at the backflow prevention pipeline 2 can be rotated, when the rotation is completed, when the pulling is stopped, the spring 14 pushes the movable frame 12 and the sliding plates 13 forward, and the four sliding plates 13 support the backflow-preventing pipeline 2 to the left and right, so that the stability and the safety of the backflow-preventing pipeline are improved.
Specifically please show in the combined drawing, each of the two stabilizing components includes a mounting frame 10, a sliding rod 11, a movable frame 12 and two sliding plates 13, the mounting frame 10 is extended and disposed on an outer wall of one side of the backflow prevention pipeline 2, the sliding rod 11 is fixedly connected to an outer wall of one side of the mounting frame 10, the movable frame 12 is movably sleeved on an outer wall of the sliding rod 11, and the two sliding plates 13 are both fixedly connected to a bottom end of the movable frame 12.
In this embodiment, the movable frame 12 and the sliding plates 13 are pushed forward by the springs 14, and the four sliding plates 13 support the backflow-preventing pipe 2 to the left and right, so as to improve the stability and safety of the backflow-preventing pipe.
Specifically, as shown in the figure, springs 14 are sleeved on the outer walls of the two sliding rods 11, and one ends of the two sliding rods 11 are fixedly connected with limiting pieces.
In this embodiment, the spring 14 pushes the movable frame 12 and the slide plate 13, and the restricting piece restricts the moving distance of the movable frame 12.
Specifically, as shown in the figure, a display groove is formed in an outer wall of one side of the connecting plate 6.
In this embodiment, the rotation angle of the rotary rod 5 is expressed by the display slot.
Specifically, as shown in the figure, an extension rod is extended from one end of the protruding plate 9, and the extension rod is matched with the display slot.
In this embodiment, the opening angle of the closing cap 4 can be shown by the position of the extension rod in the display slot, so as to indirectly display the flow rate of the discharged water.
Specifically, as shown in the figure, an output pipe extends from an outer wall of one side of the backflow prevention pipeline 2, and a thread is formed on an inner wall of the output pipe.
In this embodiment, through the screw thread of output tube and inner wall, can assist the staff to install extra pipeline.
The working principle is as follows: when the backflow preventing pipeline 2 is connected to the output end of the check valve body 1, when water in the check valve body 1 flows into the backflow preventing pipeline 2, the sealing cover 4 is pushed to rotate along the rotating shaft, wherein the sealing cover 4 is connected to the inner wall of the backflow preventing pipeline 2 through a hinge, the rotating shaft belongs to one part of the hinge, when the sealing cover 4 rotates, the rotating rod 5 rotates along the rotating shaft and drives the convex plate 9 to compress the torsion spring 7, the water flows out of the backflow preventing pipeline 2, when the water flow stops, the torsion spring 7 pushes the convex plate 9 to return again, at the moment, the sealing cover 4 seals the backflow preventing pipeline 2, at the moment, the water flow cannot reversely pass through the backflow preventing pipeline 2 during installation, so that backflow is avoided, when the backflow preventing pipeline 2 is manually pulled backwards, the spring 14 is compressed, at the moment, the backflow preventing pipeline 2 can be rotated, and when the rotation is completed, when the pulling is stopped, the spring 14 pushes the movable frame 12 and the sliding plates 13 forward, and the four sliding plates 13 support the backflow-preventing pipeline 2 to the left and right, so that the stability and the safety of the backflow-preventing pipeline are improved.
The utility model discloses a control mode is controlled through artifical start-up and closing switch, and the wiring diagram of power component and the supply of power belong to the common general knowledge in this field, and the utility model discloses mainly be used for protecting mechanical device, so the utility model discloses no longer explain control mode and wiring in detail and arrange.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the improvement concept of the present invention within the technical scope disclosed in the present invention.
Claims (6)
1. The utility model provides a possesses check valve that prevents flowing backwards function which characterized in that includes:
a check valve body (1);
the backflow prevention assembly comprises a backflow prevention pipeline (2), a sealing ring (3), a sealing cover (4), a rotating rod (5), a connecting plate (6), a torsion spring (7) and a rotating ring (8), wherein the backflow prevention pipeline (2) is connected to the output end of the one-way valve body (1) through threads, a cavity is formed in the backflow prevention pipeline (2), the sealing ring (3) is fixedly connected to the inner wall of one side of the backflow prevention pipeline (2), the sealing cover (4) is rotatably connected to the inner wall of one side of the backflow prevention pipeline (2) through a rotating shaft, the rotating rod (5) is fixedly connected to one end of a rotating shaft, the rotating rod (5) movably penetrates through the backflow prevention pipeline (2), the connecting plate (6) is fixedly connected to the outer wall of one side of the backflow prevention pipeline (2), one end of the rotating rod (5) is rotatably connected with the outer wall of one side of the connecting plate (6), the outer wall of the rotating rod (5) is sleeved with the torsion spring (7), the outer wall of the rotating rod (5) is sleeved with the rotating ring (8), a convex plate (9) extends from the outer wall of one side of the rotating ring (8), and the convex plate (9) is matched with the torsion spring (7); and
two firm subassemblies, two firm subassembly equal fixed connection in one side outer wall of anti-backflow pipeline (2) for improve its stability after the installation.
2. The check valve with the backflow prevention function according to claim 1, wherein: two the subassembly that stabilizes all includes mounting bracket (10), slide bar (11), adjustable shelf (12) and two sliding plates (13), mounting bracket (10) extend and set up in one side outer wall of anti-backflow pipeline (2), slide bar (11) fixed connection is in one side outer wall of mounting bracket (10), the outer wall of slide bar (11), two are located to adjustable shelf (12) movable sleeve the equal fixed connection in bottom of adjustable shelf (12) in sliding plate (13).
3. The check valve with the backflow prevention function according to claim 2, wherein: the outer wall of the two sliding rods (11) is sleeved with a spring (14), and one end of each sliding rod (11) is fixedly connected with a limiting piece.
4. The check valve with the backflow prevention function according to claim 3, wherein: and a display groove is formed in the outer wall of one side of the connecting plate (6).
5. The check valve with the backflow prevention function according to claim 4, wherein: one end of the convex plate (9) extends to be provided with an extension rod, and the extension rod is matched with the display groove.
6. The check valve with the backflow prevention function according to claim 5, wherein: an output pipe is arranged on the outer wall of one side of the backflow prevention pipeline (2) in an extending mode, and threads are formed in the inner wall of the output pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221450468.7U CN217401806U (en) | 2022-06-10 | 2022-06-10 | One-way valve with backflow prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221450468.7U CN217401806U (en) | 2022-06-10 | 2022-06-10 | One-way valve with backflow prevention function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217401806U true CN217401806U (en) | 2022-09-09 |
Family
ID=83147982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221450468.7U Active CN217401806U (en) | 2022-06-10 | 2022-06-10 | One-way valve with backflow prevention function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217401806U (en) |
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2022
- 2022-06-10 CN CN202221450468.7U patent/CN217401806U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Xuemei Inventor after: Cao Yanyu Inventor after: Bai Jiangpo Inventor before: Liu Xuemei Inventor before: Cao Yanyu Inventor before: Tai Jiangpo |