CN223344242U - Backflow-preventing valve device - Google Patents
Backflow-preventing valve deviceInfo
- Publication number
- CN223344242U CN223344242U CN202422769409.1U CN202422769409U CN223344242U CN 223344242 U CN223344242 U CN 223344242U CN 202422769409 U CN202422769409 U CN 202422769409U CN 223344242 U CN223344242 U CN 223344242U
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- China
- Prior art keywords
- water inlet
- cylinder
- thick bamboo
- valve device
- backflow
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Abstract
The utility model provides a backflow-preventing valve device, and belongs to the technical field of valves. Including drum and anti-return mechanism to at the internally mounted rotary rod of drum, anti-return mechanism includes hollow section of thick bamboo, hollow section of thick bamboo installs the position in the rotary rod bottom, and sets up hollow section of thick bamboo in the inside of drum, a side of hollow section of thick bamboo sets up to the opening, the position of the inside lower extreme of drum is set up to the section of thick bamboo that intakes, the inside rotation installation baffle of section of thick bamboo that intakes, the inboard position stable installation of hollow section of thick bamboo presses the movable rod. Through at the rotatable rotary rod of internally mounted of drum, the hollow section of thick bamboo is installed to the bottom of rotary rod to set up a side of hollow section of thick bamboo as the opening, in order to prevent liquid backward flow, correspond the position of hollow section of thick bamboo open-ended position rotation and pipeline, the inside of the inside backward flow of pipeline can directly flow into the inside of a water inlet section of thick bamboo, thereby avoid liquid backward flow to the inside of the pump body, play the effect of protection to the pump body.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a backflow-preventing valve device.
Background
In some industries, liquid needs to be pumped and conveyed to a position where the liquid needs to be used through a pump body, however, when a valve is closed, if the liquid flows back, the pump body is directly affected, for example, in many industrial and civil systems, equipment (such as a water pump, a compressor and the like) is designed according to a specific fluid flow direction when the equipment normally works, for example, when the water pump stops running, if no backflow prevention measures are adopted, the water can flow back to the water pump, because an impeller of the water pump can bear different forces from forward rotation when the impeller of the water pump is reversed, parts such as a shaft seal and the like can be loosened, and serious mechanical damage can be caused by the reverse rotation caused by the backflow, so that the service life of the equipment is greatly shortened.
At present, in order to prevent liquid backflow, a valve body is installed at a liquid outlet end of a pump body, the pump body stops pumping liquid and simultaneously twists the valve body, a pipeline is closed, and liquid delivery is stopped, but in actual operation, when the valve is closed, as a certain time is needed for closing the valve, liquid still flows back into the pump body in the process of closing the valve, so that the condition of damage to the pump body is still caused, and the use is influenced, and therefore, the backflow-preventing valve device is provided, so that the problem is solved.
Disclosure of utility model
In order to overcome the above-mentioned disadvantages, the present utility model provides a valve device for preventing backflow, which overcomes the above-mentioned technical problems or at least partially solves them.
The utility model is realized in the following way:
The utility model provides a backflow-preventing valve device, which comprises a cylinder, wherein a rotating rod is arranged in the cylinder;
a backflow prevention mechanism comprising;
The hollow cylinder is arranged at the bottom of the rotary rod, and is arranged in the cylinder, and one side surface of the hollow cylinder is provided with an opening;
the water inlet cylinder is arranged at the lower end of the inner part of the cylinder, and a baffle is rotatably arranged in the water inlet cylinder;
And the pressing rod is stably arranged at the inner side of the hollow cylinder and used for pressing the baffle.
In a preferred scheme, the rotary disk is fixedly arranged at the top of the rotary rod, and a lug is arranged on the outer surface of the rotary disk for increasing friction force.
In a preferred scheme, the outer surface of the cylinder is fixedly provided with a water inlet pipe, and the outer end of the water inlet pipe is provided with a joint, and the water inlet pipe is communicated with the inside of the cylinder.
In a preferred scheme, the inner wall of the water inlet cylinder is fixedly provided with a base plate, and the base plate is arranged at a position below the baffle plate and used for limiting the baffle plate.
In a preferred scheme, a liquid collecting mechanism is arranged at the bottom end of the water inlet cylinder, and the liquid collecting mechanism comprises a sealing plate, a collecting bin and a linkage rod.
The linkage rod is rotationally connected with the bottom of the baffle, one end of the linkage rod is fixedly connected with the sealing plate, and the sealing plate is arranged at the position outside the water inlet barrel and is used for sealing the water inlet barrel.
The bottom fixed mounting hollow screw post of a water inlet section of thick bamboo, hollow screw post threaded connection collects the storehouse for collect liquid.
The collecting bin is arranged in a spherical shape, the collecting bin is arranged in a transparent material, and the pressing rod is arranged in an elastic material.
The utility model provides a backflow-preventing valve device, which has the beneficial effects that:
1. Through at the rotatable rotary rod of internally mounted of drum, the hollow section of thick bamboo is installed to the bottom of rotary rod to set up a side of hollow section of thick bamboo to the opening, still install the inlet tube through the inside at the drum, in order to prevent liquid backward flow, correspond the position rotation of hollow section of thick bamboo open-ended position with the pipeline, the inside of the inside backward flow of pipeline can directly flow to the inside of a water inlet section of thick bamboo, thereby avoids liquid backward flow to the inside of the pump body, plays the effect of protection to the pump body.
2. The sealing plate is arranged at the bottom of the water inlet barrel, the linkage rod is arranged on the sealing plate and is rotationally connected with the baffle, and the linkage rod can be pushed to move downwards when the baffle rotates, so that the sealing plate is separated from the water inlet barrel, liquid can be conveyed into the collecting bin, the liquid is conveniently collected, the outflow is avoided, and the environment is prevented from being polluted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the front view of the present utility model;
FIG. 2 is a schematic view of the water inlet barrel structure of the utility model;
FIG. 3 is a schematic view of the hollow cylinder structure of the present utility model;
FIG. 4 is a schematic view of a baffle structure according to the present utility model;
FIG. 5 is a schematic view of the inner structure of the water inlet barrel of the utility model.
In the figure, 1, a cylinder; 2, a rotary rod, 3, a backflow prevention mechanism, 31, a hollow cylinder, 32, a water inlet cylinder, 321, a baffle, 33, a pressing rod, 4, a rotary disk, 5, a convex block, 6, a water inlet pipe, 7, a joint, 8, a base plate, 9, a liquid collecting mechanism, 91, a sealing plate, 92, a collecting bin, 93, a linkage rod and 10, a hollow threaded column.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 to 5, the utility model provides a technical scheme that the backflow prevention valve device comprises a cylinder 1 and a backflow prevention mechanism 3, wherein a rotary rod 2 is arranged in the cylinder 1, the backflow prevention mechanism 3 comprises a hollow cylinder 31, the hollow cylinder 31 is arranged at the bottom of the rotary rod 2, the hollow cylinder 31 is arranged in the cylinder 1, one side surface of the hollow cylinder 31 is provided with an opening, a water inlet cylinder 32 is arranged at the lower end of the inner part of the cylinder 1, a baffle 321 is rotatably arranged in the water inlet cylinder 32, and a pressing rod 33 is stably arranged at the inner side of the hollow cylinder 31 and used for pressing the baffle 321.
In a preferred embodiment, rotary disk 4 is fixedly installed at the top of rotary rod 2 to be provided with lug 5 on the surface of rotary disk 4 for increase frictional force, for this device to use, install rotary disk 4 at the top of rotary rod 2, rotate through rotary disk 4 and can drive rotary rod 2 and rotate, thereby drive hollow section of thick bamboo 31 and rotate, when rotary disk 4 is rotatory, in order to prevent the smooth hand, install lug 5 on the surface of rotary disk 4, with this promotion frictional force, convenient control rotary disk 4 rotates, satisfy the use.
In a preferred embodiment, the outer surface of the cylinder 1 is fixedly provided with the water inlet pipe 6, the outer end of the water inlet pipe 6 is provided with the connector 7, the water inlet pipe 6 is communicated with the inside of the cylinder 1, in actual use, the device is connected with an external water pipe, so that the external water pipe is conveniently communicated with the cylinder 1, the water inlet pipe 6 is arranged outside the cylinder 1, one end of the water inlet pipe 6 is provided with the connector 7, and a passage can be formed by connecting the connector 7 with the external water pipe, thereby being convenient for conveying liquid.
In a preferred embodiment, the inner wall of the water inlet tube 32 is fixedly provided with the base plate 8, the base plate 8 is arranged at a position below the baffle 321 for limiting the baffle 321, so that the baffle 321 can normally circulate and stably seals the inside of the water inlet tube 6, and therefore, the base plate 8 is stably arranged at the position inside the water inlet tube 32, the baffle 321 cannot rotate at will, and the normal circulation of the liquid is ensured.
In order to prevent liquid backflow, the liquid collecting mechanism 9 is installed at the bottom end of the water inlet barrel 32, the liquid collecting mechanism 9 comprises a sealing plate 91, a collecting bin 92 and a linkage rod 93, the linkage rod 93 is rotationally connected with the bottom of the baffle 321, one end of the linkage rod 93 is fixedly connected with the sealing plate 91, the sealing plate 91 is arranged at the position outside the water inlet barrel 32 and used for sealing the water inlet barrel 32, the hollow threaded column 10 is fixedly installed at the bottom end of the water inlet barrel 32 and is in threaded connection with the hollow threaded column 10 to collect the liquid, the collecting bin 92 is in a spherical shape and is made of transparent materials, and the pressing rod 33 is made of elastic materials.
In actual use, this device is in order to prevent liquid backward flow, be in under the initial condition at hollow section of thick bamboo 31, open-ended position can correspond with the position of pipeline port, the pressure moves the pole 33 on the hollow section of thick bamboo 31 and can extrude on one side of the upper surface of baffle 321 this moment, control baffle 321 is rotatory, inlet tube 6 just can be opened this moment, in case the inside liquid backward flow of pipeline can directly flow to inlet tube 6 inside, collect liquid, and can drive the trace 93 and move down when baffle 321 rotates, also can control closing plate 91 and inlet tube 6 bottom simultaneously and break away from, open the bottom of inlet tube 6, the inside liquid that enters into inlet tube 6 can directly flow to collection storehouse 92 inside, so as to collect liquid.
The working process or working principle of the backflow-preventing valve device is that a valve body is arranged at a liquid outlet end of a pump body, the pump body stops pumping liquid and simultaneously is screwed, a pipeline is closed, and liquid delivery is stopped, however, in actual operation, the device is designed to solve the problem because a certain time is needed for closing the valve, and liquid still flows back into the pump body in the process of closing the valve, so that the pump body is damaged and the use is influenced.
This device can prevent that liquid from flowing back when using, avoid liquid to flow back to the pump body inside, cause the damage to the pump body, concrete operation is, be in the same place with joint 7 and external water piping connection, the water pipe is installed in the output of external pump body again, will take out liquid through opening the pump body, and carry the inside of inlet tube 6, disrotatory bull stick 2 rotates simultaneously, hollow section of thick bamboo 31 is installed to rotary rod 2's bottom fixed mounting, because the outside position of half of hollow section of thick bamboo 31 is the opening, when using, rotate rotatory bull stick 2 by the staff, make hollow section of thick bamboo 31 rotate, correspond open-ended position and inlet tube 6's position, the inside liquid of inlet tube 6 can flow into hollow section of thick bamboo 31 inside this moment, the liquid passes hollow section of thick bamboo 31 inside and flows into another pipeline inside, realize the normal transport to liquid.
When the liquid is not required to be conveyed, the rotary rod 2 is reversed, the hollow cylinder 31 is rotated to an initial state, meanwhile, the port of the hollow cylinder 31, which faces the water inlet pipe 6, is closed to prevent the liquid from being conveyed continuously, in order to prevent the liquid from flowing back, in the initial state of the hollow cylinder 31, the position of the opening corresponds to the position of the port of the pipeline, at the moment, the pressing rod 33 on the hollow cylinder 31 presses one side of the upper surface of the baffle 321, the control baffle 321 rotates, and the water inlet pipe 6 can be opened at this moment, if the liquid in the pipeline flows back, the liquid can directly flow into the water inlet pipe 6 to be collected, the linkage rod 93 can be driven to move downwards while the baffle 321 rotates, the sealing plate 91 can be controlled to be separated from the bottom of the water inlet pipe 6, the bottom of the water inlet pipe 6 is opened, and the liquid entering the water inlet pipe 6 can directly flow into the collecting bin 92 to collect the liquid.
In this way, even if the liquid in the pipeline flows back, the liquid is controlled to flow into the collecting bin 92, and the liquid cannot directly flow into the water inlet pipe 6, so that the liquid is prevented from flowing back into the external pump body, and the pump body is protected.
When the device is normally used, in order to prevent the baffle 321 from rotating, the hollow cylinder 31 can be rotated, the pressing rod 33 at the opening position of the hollow cylinder 31 can be moved to the position in the middle of the baffle 321, the position in the middle of the inside of the baffle 321 can be safely rotated to form a rotating shaft, the device is further provided with a torsion spring in the rotating shaft, namely the pressing rod 33 can press the position of the rotating shaft, so that the baffle 321 can not easily rotate, the baffle 321 can seal the top of the water inlet pipe 6, liquid can not randomly flow into the water inlet pipe 6 when passing through the position of the water inlet pipe 6, and normal conveying of the liquid is ensured.
Claims (8)
1. A backflow-preventing valve device, which is characterized by comprising a cylinder (1), wherein a rotating rod (2) is arranged in the cylinder (1);
-a backflow prevention mechanism (3), the backflow prevention mechanism (3) comprising;
The hollow cylinder (31) is arranged at the bottom of the rotary rod (2), the hollow cylinder (31) is arranged in the cylinder (1), and one side surface of the hollow cylinder (31) is provided with an opening;
A water inlet cylinder (32), wherein the water inlet cylinder (32) is arranged at the lower end of the inside of the cylinder (1), and a baffle (321) is rotatably arranged in the water inlet cylinder (32);
And the pressing rod (33) is stably arranged at the inner side of the hollow cylinder (31) and used for pressing the baffle plate (321).
2. A valve device for preventing backflow according to claim 1, characterized in that the rotary disc (4) is fixedly mounted on top of the rotary rod (2) and that a projection (5) is provided on the outer surface of the rotary disc (4) for increasing friction.
3. A backflow preventing valve device according to claim 2, characterized in that the outer surface of the cylinder (1) is fixedly provided with a water inlet pipe (6) and that the outer end of the water inlet pipe (6) is provided with a joint (7), the water inlet pipe (6) being in communication with the interior of the cylinder (1).
4. A valve device for preventing backflow according to claim 3, characterized in that the inner wall of the water inlet tube (32) is fixedly provided with a base plate (8), and the base plate (8) is arranged at a position below the baffle plate (321) for limiting the baffle plate (321).
5. The backflow prevention valve device according to claim 4, wherein a liquid collecting mechanism (9) is mounted at the bottom end of the water inlet cylinder (32), and the liquid collecting mechanism (9) comprises a sealing plate (91), a collecting bin (92) and a linkage rod (93).
6. The backflow prevention valve device according to claim 5, wherein the link rod (93) is rotatably connected to the bottom of the baffle plate (321) and fixedly connects one end of the link rod (93) to the sealing plate (91), and the sealing plate (91) is disposed at a position outside the water inlet tube (32) for sealing the water inlet tube (32).
7. The backflow prevention valve device according to claim 6, wherein the bottom end of the water inlet cylinder (32) is fixedly provided with a hollow threaded column (10), and the hollow threaded column (10) is in threaded connection with a collecting bin (92) for collecting liquid.
8. The backflow prevention valve device according to claim 7, wherein the collection chamber (92) is provided in a spherical shape, the collection chamber (92) is provided in a transparent material, and the pressing rod (33) is provided in an elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422769409.1U CN223344242U (en) | 2024-11-13 | 2024-11-13 | Backflow-preventing valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422769409.1U CN223344242U (en) | 2024-11-13 | 2024-11-13 | Backflow-preventing valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223344242U true CN223344242U (en) | 2025-09-16 |
Family
ID=97019822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422769409.1U Active CN223344242U (en) | 2024-11-13 | 2024-11-13 | Backflow-preventing valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223344242U (en) |
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2024
- 2024-11-13 CN CN202422769409.1U patent/CN223344242U/en active Active
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