Backflow prevention control device
By designing a return flow control device including a sealing block and a driving spring, the problem of water source return in the pipeline system is solved, and the effect of effectively preventing return and protecting the quality of the water source is achieved.
Patent Information
- Application Number
- CN202421644740.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In a pipeline system, when the water source stops transporting, unused water sources may return, affecting the quality of the water source and the water supply effect.
An anti-reflow control device is designed, including a cylinder, a water inlet pipe, a drain pipe, a sealing block and a driving spring. The sealing block moves under the action of the water flow pressure by the elastic force of the driving spring to prevent the return of sewage. The adjustment block adjusts the position of the sealing block through threaded connections to improve flexibility.
It effectively avoids the return of water sources, protects the quality of water sources and water supply effect, and improves the practicality and flexibility of the anti-reflow control device.
Smart Images
Figure CN222760343U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of backflow prevention control devices, in particular to a backflow prevention control device. Background Art
[0002] A backflow prevention control device is a device used to prevent the backflow of fluid or gas in a piping system. Preventing the backflow of media can protect pumps, valves and other equipment from damage caused by backflow, thereby extending the service life of the equipment. In a system that processes different media, a backflow prevention device can prevent cross contamination between different media and ensure the cleanliness of the system and product quality.
[0003] However, at present, when the pipeline stops transporting water, some of the water that has not been transported to the place of use may flow back, which means that this part of the water will return to the original source of transportation, and the impact on water quality and water supply effect may be more severe.
[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a backflow prevention control device is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a backflow prevention control device to solve the problem of preventing water source backflow proposed in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a backflow prevention control device, comprising a cylinder, a water inlet pipe is fixedly connected to the bottom of the cylinder, a drain pipe is fixedly connected to the top of the cylinder, a sealing block is arranged inside the cylinder, a driving spring is fixedly connected to the top of the sealing block, a threaded hole is arranged inside the cylinder, an adjusting block is used inside the threaded hole, a threaded tooth is arranged on the adjusting block, and the threaded tooth is threadedly connected to the threaded hole, and the top of the driving spring is fixedly connected to the bottom of the adjusting block.
[0007] Furthermore, one end of the water inlet pipe and the drain pipe are both connected with a flange.
[0008] Furthermore, the sealing block is cylindrical.
[0009] Furthermore, the threaded hole is threadably connected to the thread teeth.
[0010] Furthermore, the adjustment block is cylindrical.
[0011] Furthermore, the sealing block is cylindrical, and the outer wall is in contact with the inner wall of the cylinder.
[0012] Furthermore, a sealing ring is installed around the sealing block.
[0013] Furthermore, a square groove is arranged inside the sealing block, a guide plate is passed through the square groove, and the top of the guide plate is fixedly connected to the bottom of the adjustment block.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model uses a backflow prevention control device to prevent the backflow of the conveyed water source through the setting of a sealing block. The water inlet pipe is connected to the conveying pipeline, and the drain pipe is connected to the external conveying pipeline through a flange. After the sewage enters the water inlet pipe, the sewage flows to the bottom of the sealing block. When the pressure generated by the sewage flow is greater than the elastic force of the driving spring, the sealing block will be pushed to move. After the sealing block moves, the drain pipe is no longer sealed, and the sewage entering the cylinder can flow into the drain pipe and then flow to the next area through the drain pipe. When the water source is stopped, in order to prevent the discharged sewage from flowing back, the driving spring is reset, which will push the sealing block to move. After the sealing block moves, one end of the drain pipe is sealed, thereby preventing the sewage from flowing back through the drain pipe, thereby achieving the purpose of preventing the conveyed water source from flowing back and improving the practicality of the backflow prevention control device.
[0016] 2. The utility model sets an adjustment block, on which thread teeth are arranged, and the thread teeth are threadedly connected with the threaded hole. The adjustment block is cylindrical, and rotating the thread teeth of the adjustment block to cooperate with the threaded hole will move the position of the adjustment block, thereby adjusting the position of the sealing block, which is convenient for adjusting the position of the sealing block according to the usage conditions and improves flexibility. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the cylinder;
[0019] Figure 3 It is a three-dimensional structural schematic diagram of the threaded hole and the adjusting block;
[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the sealing block.
[0021] In the figure: 1. Cylinder; 2. Water inlet pipe; 3. Drain pipe; 4. Flange; 5. Threaded hole; 6. Adjustment block; 7. Threaded tooth; 8. Drive spring; 9. Sealing block; 10. Sealing ring; 11. Square groove; 12. Guide plate. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Embodiment 1
[0024] like Figure 1 - Figure 4 As shown, a backflow prevention control device comprises a cylinder 1, a water inlet pipe 2 is fixedly connected to the bottom of the cylinder 1, a drain pipe 3 is fixedly connected to the cylinder 1, a sealing block 9 is arranged inside the cylinder 1, a driving spring 8 is fixedly connected to the top of the sealing block 9, a threaded hole 5 is arranged inside the cylinder 1, an adjusting block 6 is used inside the threaded hole 5, the top of the driving spring 8 is fixedly connected to the bottom of the adjusting block 6, and the backflow prevention control device is used to prevent the backflow of the conveyed water source, the water inlet pipe 2 is connected to the conveying pipeline, the drain pipe 3 is connected to the external conveying pipeline through the flange 4, and after the sewage enters the water inlet pipe 2, the sewage flows to the bottom of the sealing block 9 After that, when the pressure generated by the flow of sewage is greater than the elastic force of the driving spring 8, the sealing block 9 will be pushed to move. After the sealing block 9 moves, the drain pipe 3 is no longer sealed, and the sewage entering the cylinder 1 can flow into the drain pipe 3 and then flow to the next area through the drain pipe 3. When the water source is stopped, in order to prevent the discharged sewage from flowing back, the driving spring 8 is reset, which will push the sealing block 9 to move. After the sealing block 9 moves, it will seal one end of the drain pipe 3, thereby preventing the sewage from flowing back through the drain pipe 3, thereby achieving the purpose of preventing the backflow of the transported water source and improving the practicability of the anti-backflow control device.
[0025] Furthermore, one end of the water inlet pipe 2 and the drain pipe 3 are both connected with a flange 4 , and the water inlet pipe 2 and the drain pipe 3 are connected to external pipelines through the flange 4 .
[0026] Furthermore, the sealing block 9 is cylindrical, and the diameter of the sealing block 9 is equal to the diameter of the inner wall of the cylinder 1 , so that the sealing block 9 can seal the cylinder 1 .
[0027] Furthermore, the threaded hole 5 is threadedly connected with the threaded teeth 7. Through the cooperation between the threaded hole 5 and the threaded teeth 7, when the adjusting block 6 is rotated, the position of the adjusting block 6 will be adjusted, and then the position of the sealing block 9 will be adjusted.
[0028] Furthermore, the sealing block 9 is cylindrical, and its outer wall is in contact with the inner wall of the cylinder 1 .
[0029] Furthermore, a sealing ring 10 is installed around the sealing block 9 , and the sealing ring 10 can improve the sealing between the sealing block 9 and the cylinder 1 , and effectively prevent water from flowing to the top of the sealing block 9 .
[0030] Furthermore, a square groove 11 is provided inside the sealing block 9, and a guide plate 12 is passed through the inside of the square groove 11, and the top of the guide plate 12 is fixedly connected to the bottom of the adjustment block 6. When the sealing block 9 moves, the square groove 11 will be driven to slide on the guide plate 12, and then the sealing block 9 will be guided, so that the sealing block 9 can move smoothly.
[0031] Embodiment 2
[0032] like Figure 2 and Figure 3 As shown, a backflow prevention control device proposed by the utility model is another implementation mode of the utility model compared to the first embodiment. A threaded tooth 7 is provided on the adjusting block 6, and the threaded tooth 7 is threadedly connected with the threaded hole 5. The adjusting block 6 is cylindrical. Rotating the threaded tooth 7 of the adjusting block 6 to cooperate with the threaded hole 5 will move the position of the adjusting block 6, and then the position of the sealing block 9 can be adjusted, which is convenient for adjusting the position of the sealing block 9 according to the usage conditions, thereby improving flexibility.
[0033] Working principle: When using this anti-backflow control device, first, the adjustment block 6 is cylindrical. Rotating the adjusting block 6 thread teeth 7 and the threaded hole 5 will move the position of the adjusting block 6, and then the position of the sealing block 9 can be adjusted, which is convenient for adjusting the position of the sealing block 9 according to the usage conditions, thereby improving flexibility.
[0034] Finally, the water inlet pipe 2 is connected to the delivery pipe, and the drain pipe 3 is connected to the external delivery pipe through the flange 4. After the sewage enters the water inlet pipe 2, the sewage flows to the bottom of the sealing block 9. When the pressure generated by the sewage flow is greater than the elastic force of the driving spring 8, the sealing block 9 will be pushed to move. After the sealing block 9 moves, the drain pipe 3 is no longer sealed, and the sewage entering the cylinder 1 can flow into the drain pipe 3 and then flow to the next area through the drain pipe 3. When the water source is stopped, in order to avoid the backflow of the discharged sewage, the driving spring 8 is reset, which will push the sealing block 9 to move. After the sealing block 9 moves, it will seal one end of the drain pipe 3, thereby preventing the sewage from flowing back through the drain pipe 3, thereby achieving the purpose of preventing the backflow of the delivered water source, and improving the practicability of the anti-backflow control device.
[0035] This is how a backflow prevention control device works.
[0036] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. A backflow prevention control device, comprising a cylinder (1), characterized in that: The bottom of the cylinder (1) is fixedly connected to a water inlet pipe (2), the cylinder (1) is fixedly connected to a drain pipe (3), a sealing block (9) is arranged inside the cylinder (1), a driving spring (8) is fixedly connected to the top of the sealing block (9), a threaded hole (5) is arranged inside the cylinder (1), an adjusting block (6) is used inside the threaded hole (5), a threaded tooth (7) is arranged on the adjusting block (6), and the threaded tooth (7) is threadedly connected to the threaded hole (5), and the top of the driving spring (8) is fixedly connected to the bottom of the adjusting block (6).
2. A backflow prevention control device according to claim 1, characterized in that: One end of each of the water inlet pipe (2) and the drain pipe (3) is connected to a flange (4).
3. The backflow prevention control device according to claim 1, characterized in that: The sealing block (9) is cylindrical.
4. The backflow prevention control device according to claim 1, characterized in that: The threaded hole (5) is threadedly connected to the thread teeth (7).
5. The backflow prevention control device according to claim 1, characterized in that: The regulating block (6) is cylindrical.
6. The backflow prevention control device according to claim 2, characterized in that: The sealing block (9) is cylindrical, and its outer wall is in contact with the inner wall of the cylinder (1).
7. The backflow prevention control device according to claim 2, characterized in that: A sealing ring (10) is installed around the sealing block (9).
8. The backflow prevention control device according to claim 2, characterized in that: The sealing block (9) is provided with a square groove (11) inside, a guide plate (12) is passed through the square groove (11), and the top end of the guide plate (12) is fixedly connected to the bottom end of the adjustment block (6).