Backflow prevention device for drainage pipeline
By designing drainage pipelines to prevent backflow, using low-voltage transformers and magnetic coils to automatically detect and close the closed door, the problem of wastewater backflow is solved, safe, simple and efficient wastewater management is achieved, and safety hazards and property losses are reduced.
Patent Information
- Application Number
- CN202421097847.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-20
AI Technical Summary
Existing wastewater pipelines are prone to backflow when draining rapidly in large flows, resulting in safety hazards and property losses. The existing check valves do not meet the needs of draining wastewater.
A drainage pipeline prevents backflow device, including bottom plate, connecting pipe, closed door, closed seat, brake assembly and actuation component, through the cooperation of low-voltage transformer, magnetic coil and electrical connection line, the water backflow situation is automatically detected and closed. Door to prevent wastewater from pouring back.
It effectively reduces safety hazards and property losses caused by backflow of wastewater, and realizes automated, safe, simple and efficient wastewater management.
Smart Images
Figure CN222295210U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage and wastewater backflow prevention devices, in particular to a drainage pipeline backflow prevention device. Background Art
[0002] At present, the basement drainage pipelines in most residential communities are relatively shallow due to the relatively shallow outdoor pipeline network, especially the shallow buried depth of the earlier built municipal drainage pipeline network, and the pipe diameter cannot meet the sudden large-flow drainage demand. When there is concentrated large-flow drainage, blockage of downstream pipelines or moderate to heavy rain, the water pressure of the municipal pipeline network increases, and the existing check valve cannot meet the drainage demand of downstream sewage and wastewater, resulting in sewage and wastewater backflowing through the household pipes in the basements of residential communities with relatively low terrain in the downstream section of the same pipe diameter. There are many incidents of sewage and wastewater entering the basement, causing safety hazards and property losses. Summary of the invention
[0003] The utility model provides a drainage pipeline backflow preventer, which overcomes the deficiencies of the above-mentioned prior art and can effectively solve the potential safety hazard of backflow in the existing sewage and wastewater pipelines.
[0004] The technical solution of the utility model is achieved through the following measures: a drainage pipeline backflow preventer, including a base plate, a connecting pipe, a closed door, a closed seat, a brake assembly and an actuator assembly, a closed seat is installed on the front side of the base plate, a closed door that can be opened and closed is hinged on the right side of the middle of the closed seat, the closed seat is inclined with the left side lower and the right side higher, the closed door is normally open in its natural state, a connecting pipe is installed on the closed seat corresponding to the position of the closed door, the actuator assembly is connected to the closed door, the actuator assembly can close the closed door, the brake assembly is connected to the actuator assembly, and the brake assembly can control the action of the actuator assembly.
[0005] The following are further optimizations and / or improvements to the above utility model technical solution:
[0006] The above-mentioned brake assembly may include a low-voltage transformer, a brake switch and contacts. A contact capable of controlling the start and disconnection of the brake switch is provided between the low-voltage transformer and the brake switch, and the brake switch is connected to the actuator.
[0007] The above-mentioned execution component may include a magnetic coil, a magnetic rod, a fixed pulley, and a pulling wire. The magnetic coil is connected to the brake component. A magnetic rod is arranged inside the magnetic coil. Two fixed pulleys are arranged with an upper and lower interval on the bottom plate. One end of the magnetic rod is connected to the pulling wire, and the other end of the pulling wire passes through the outside of the two fixed pulleys in turn and then passes through the connecting pipe to be connected to the closed door.
[0008] The above-mentioned execution assembly may also include a bracket, and the magnetic coil and the magnetic rod are assembled and installed on the bracket.
[0009] A sealing rubber ring may be provided at one end of the connecting pipe, and a rubber ring is provided on the outer side of the closed door.
[0010] The electrical connection lines between the low-voltage transformer, the brake switch, the contacts and the magnetic coil can all be located in the PVC plastic pipe.
[0011] The above-mentioned bottom plate, connecting pipe, closing door and closing seat can all be made of stainless steel, and the bottom plate is fixed by stainless steel expansion bolts.
[0012] The utility model has a reasonable and compact structure and is easy to use. By arranging a brake component to turn on and off the power according to the backflow of the water pipe, the execution component is controlled to close the closed door, thereby preventing the backflow of sewage and waste water, reducing safety hazards and property losses, and has the characteristics of safety, simplicity and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Attached Figure 1 This is a schematic diagram of the closed door structure of an embodiment of the utility model in a closed state.
[0014] Attached Figure 2 This is a schematic structural diagram of the closed door in the open state of an embodiment of the utility model.
[0015] The codes in the accompanying drawings are: 1 is a base plate, 2 is a connecting pipe, 3 is a closed door, 4 is a closed seat, 5 is a low-voltage transformer, 6 is a brake switch, 7 is a contact, 8 is a magnetic coil, 9 is a magnetic rod, 10 is a fixed pulley, 11 is a pulling wire, 12 is a bracket, 13 is a stainless steel expansion bolt, 14 is a PVC plastic pipe, 15 is a sealing rubber ring, and 16 is an outlet pipe. DETAILED DESCRIPTION
[0016] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.
[0017] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.
[0018] The present invention is further described below in conjunction with the embodiments and drawings:
[0019] Embodiment 1: As attached Figure 1 , 2As shown, the drainage pipeline backflow preventer includes a base plate 1, a connecting pipe 2, a closed door 3, a closed seat 4, a brake assembly and an actuator assembly. A closed seat 4 is installed on the front side of the base plate 1, and a closed door 3 that can be opened and closed is hinged on the right side of the middle of the closed seat 4. The closed seat 4 is tilted with the left side lower and the right side higher. The closed door 3 is normally open in its natural state. A connecting pipe 2 is installed on the closed seat 4 corresponding to the position of the closed door 3. The actuator assembly is connected to the closed door 3, and the actuator assembly can close the closed door 3. The brake assembly is connected to the actuator assembly, and the brake assembly can control the action of the actuator assembly.
[0020] When in use, the base plate 1 is fixed on the well wall, and the connecting pipe 2 is put on the indoor outlet pipe. Since the closing seat 4 is inclined, the closing door 3 is naturally open under the action of gravity. When the brake component detects the backflow of sewage, the brake component is turned on to connect the brake component with the actuator component. The actuator component will pull the closing door 3 to close it, thereby preventing backflow and solving the safety hazards and property losses caused by the backflow of sewage and rainwater with large water volume and high water pressure. When the sewage recedes and the contact cannot detect water, the brake component is disconnected, and the closing door 3 opens under the action of gravity for normal drainage.
[0021] The above-mentioned drainage pipeline backflow preventer can be further optimized and / or improved according to actual needs:
[0022] Embodiment 2: As attached Figure 1 , 2 As shown, the brake assembly includes a low-voltage transformer 5, a brake switch 6 and a contact 7. A contact 7 capable of controlling the start and disconnection of the brake switch 6 is provided between the low-voltage transformer 5 and the brake switch 6. The brake switch 6 is connected to the actuator assembly.
[0023] When in use, the low-voltage transformer 5 and the brake switch 6 are both connected to a 220V voltage. The low-voltage transformer 5 converts the 220V voltage into a 6V safe voltage. When the contact 7 comes into contact with water, the low-voltage transformer 5 is connected to the brake switch 6, triggering the brake switch 6 to turn on, thereby driving the actuator to operate. The braking process is simplified and safe, and the actuator will only operate when there is water, which is more energy-saving.
[0024] Embodiment 3: As attached Figure 1 , 2 As shown, the actuator assembly includes a magnetic coil 8, a magnetic rod 9, a fixed pulley 10, and a pulling wire 11. The magnetic coil 8 is connected to the brake assembly. A magnetic rod 9 is arranged inside the magnetic coil 8. Two fixed pulleys 10 spaced apart from each other are arranged on the bottom plate 1. One end of the magnetic rod 9 is connected to the pulling wire 11. The other end of the pulling wire 11 passes through the outside of the two fixed pulleys 10 in sequence and then passes through the connecting pipe 2 to be connected to the closed door 3.
[0025] When there is water, the contacts connect the low-voltage transformer 5 and the brake switch 6, so that the brake switch 6 is started, thereby connecting the magnetic coil 8 with the power supply. The magnetic force generated by the magnetic coil 8 after being energized causes the magnetic rod 9 to move to the right, thereby pulling the closed door 3 to move to the left and keep it closed continuously, and can withstand the closure of the closed door 3 under a large water pressure. When the water recedes, the low-voltage transformer 5 and the brake switch 6 are disconnected, the magnetic rod 9 is reset, and the closed door 3 is naturally normally open.
[0026] Embodiment 4: As attached Figure 1 , 2 As shown, the actuator assembly also includes a bracket 12 , and the magnetic coil 8 and the magnetic rod 9 are assembled and mounted on the bracket 12 .
[0027] Embodiment 5: As attached Figure 1 , 2 As shown, one end of the connecting pipe 2 is provided with a sealing rubber ring 15, and the outer side of the closed door 3 is provided with a rubber ring. By arranging in this way, the sealing is ensured to avoid water leakage.
[0028] Embodiment 6: As attached Figure 1 , 2 As shown, the electrical connection lines between the low-voltage transformer 5 , the brake switch 6 , the contact 7 , and the magnetic coil 8 are all located in the PVC plastic tube 14 .
[0029] This setting ensures the safety of electricity use.
[0030] Embodiment 7: As attached Figure 1 , 2 As shown, the bottom plate 1 , the connecting pipe 2 , the closing door 3 , and the closing seat 4 are all made of stainless steel, and the bottom plate 1 is fixed by stainless steel expansion bolts 13 .
[0031] This arrangement can prevent parts from being damaged by rust.
[0032] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.
Claims
1. A drainage pipeline backflow preventer, characterized in that It includes a base plate, a connecting pipe, a closed door, a closed seat, a braking assembly and an actuator assembly. A closed seat is installed on the front side of the base plate. A closed door that can be opened and closed is hinged on the right side of the middle of the closed seat. The closed seat is tilted with the left side lower and the right side higher. The closed door is normally open in its natural state. A connecting pipe is installed on the closed seat corresponding to the position of the closed door. The actuator assembly is connected to the closed door, and the actuator assembly can close the closed door. The braking assembly is connected to the actuator assembly, and the braking assembly can control the action of the actuator assembly.
2. The drainage pipeline backflow preventer according to claim 1, characterized in that The brake assembly includes a low-voltage transformer, a brake switch and contacts. A contact capable of controlling the start and disconnection of the brake switch is arranged between the low-voltage transformer and the brake switch. The brake switch is connected to the actuator assembly.
3. The drainage pipeline backflow preventer according to claim 1 or 2, characterized in that The execution component includes a magnetic coil, a magnetic rod, a fixed pulley, and a pulling wire. The magnetic coil is connected to the brake component. A magnetic rod is arranged inside the magnetic coil. Two fixed pulleys are arranged with an upper and lower interval on the bottom plate. One end of the magnetic rod is connected to the pulling wire, and the other end of the pulling wire passes through the outside of the two fixed pulleys in turn and then passes through the connecting pipe to be connected to the closed door.
4. The drainage pipeline backflow preventer according to claim 3, characterized in that The execution component also includes a bracket, and the magnetic coil and the magnetic rod are assembled and installed on the bracket.
5. The drainage pipeline backflow preventer according to claim 1, 2 or 4, characterized in that A sealing rubber ring is arranged at one end of the connecting pipe, and a rubber ring is arranged at the outer side of the closing door.
6. The drainage pipeline backflow preventer according to claim 3, characterized in that A sealing rubber ring is arranged at one end of the connecting pipe, and a rubber ring is arranged at the outer side of the closing door.
7. The drainage pipeline backflow preventer according to claim 3, characterized in that The electrical connection lines between the low-voltage transformer, brake switch, contacts and magnetic coils are all located in the PVC plastic pipe.
8. The drainage pipeline backflow preventer according to claim 4 or 6, characterized in that The electrical connection lines between the low-voltage transformer, brake switch, contacts and magnetic coils are all located in the PVC plastic pipe.
9. The drainage pipeline backflow preventer according to claim 1, 2, 4, 6 or 7, characterized in that The base plate, connecting pipe, closing door and closing seat are all made of stainless steel, and the base plate is fixed by stainless steel expansion bolts.
10. The drainage pipeline backflow preventer according to claim 5, characterized in that The base plate, connecting pipe, closing door and closing seat are all made of stainless steel, and the base plate is fixed by stainless steel expansion bolts.