Ethylene-propylene rubber tube timing backflush cleaning device
By designing a timed backflushing cleaning device for EPDM hoses, and utilizing a pressure relief component and a liquid storage and stirring component to automatically control pressure relief and stirring, the problems of time-consuming and labor-intensive operation and environmental pollution during the cleaning process of EPDM hoses are solved, achieving a highly efficient and safe cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI SHENGYAO PLASTIC PROD CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-05
AI Technical Summary
During long-term use, ethylene propylene rubber hoses are prone to the accumulation of particulate matter, microorganisms, or chemical residues, which affects the cleanliness of fluid transport and the lifespan of the hoses. Existing timed backflushing cleaning devices require the pre-pouring of cleaning agent and manual stirring, which is time-consuming and labor-intensive. High-pressure backflushing may damage the hoses, and the waste liquid is discharged directly into the waste bin without treatment, posing a risk of environmental pollution.
A timed backflushing cleaning device for EPDM hoses, including a pressure relief component and a liquid storage and stirring component, was designed. The device detects the pressure inside the hose using a pressure sensor and automatically controls the opening and closing of the pressure relief valve. Combined with a motor-driven stirring head, it achieves uniform stirring of the cleaning agent and filtration of waste liquid, avoiding high pressure damage to the hose and discharge of untreated waste liquid.
The automated cleaning process reduces manual operation time, protects the hoses, avoids environmental pollution, and ensures cleaning effectiveness and safety.
Smart Images

Figure CN224322003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline maintenance technology, and in particular to a timed backflushing cleaning device for ethylene propylene rubber hoses. Background Technology
[0002] Ethylene propylene diene monomer (EPDM) hoses are flexible pipes made primarily of EPDM rubber. They possess excellent weather resistance, chemical corrosion resistance, and temperature resistance, and are widely used in industries such as pharmaceuticals, food, chemicals, automobiles, and HVAC (heating, ventilation, and air conditioning).
[0003] During long-term use, ethylene propylene rubber hoses are prone to accumulating particulate matter, microorganisms, or chemical residues, affecting the cleanliness of fluid transport and the hose's lifespan. Timed backflushing cleaning devices can automatically perform backflushing to remove impurities from the hoses, ensuring stable system operation. However, the backflushing cleaning process for ethylene propylene rubber hoses requires pre-pouring the cleaning agent and manual stirring, which is time-consuming and labor-intensive. Furthermore, high-pressure backflushing may damage the hoses, and the direct discharge of untreated waste liquid into waste bins poses an environmental pollution risk. Utility Model Content
[0004] To overcome the problems in the backflushing cleaning process of EPDM hoses, which not only requires pre-pouring the cleaning agent and manually stirring it evenly, making the operation time-consuming and labor-intensive, but also the possibility of high-pressure backflushing damaging the hoses, and the risk of environmental pollution from directly discharging untreated waste liquid into the waste bin.
[0005] The technical solution of this utility model is as follows: a timed backflushing cleaning device for EPDM hoses, including a base plate; it also includes a pressure relief component and a liquid storage and stirring component. A waste liquid tank is fixedly connected to the top of the base plate, a ring block is fixedly connected to the inside of the waste liquid tank, a drain block is fixedly connected to the top of the ring block, a filter screen is provided on the inner side of the ring block, a handle is fixedly connected to the top of the filter screen, a drain outlet is fixedly connected to the outside of the waste liquid tank, a first support column is fixedly connected to the top of the base plate, a second support column is fixedly connected to the top of the base plate, an electrical control device is fixedly connected to the top of the base plate, and a pressure booster is fixedly connected to the top of the electrical control device. The pump has a solenoid valve 1 fixedly connected to the top of support column 1, an inlet pipe fixedly connected to the outside of solenoid valve 1, a return pipe 1 fixedly connected to the outside of solenoid valve 1, and an EPDM hose fixedly connected to the outside of solenoid valve 1. The pump has a solenoid valve 2 fixedly connected to the top of support column 2, an outlet pipe 1 fixedly connected to the outside of solenoid valve 2, and a return pipe 2 fixedly connected to the outside of solenoid valve 2. The booster pump has a return pipe 3 fixedly connected to the outside of return pipe 3, a solenoid valve 3 fixedly connected inside return pipe 3, and a pressure relief assembly fixedly connected to the outside of return pipe 2. The pump also has a liquid storage and stirring assembly fixedly connected to the top of the electrical control device.
[0006] Preferably, the pressure relief assembly includes a pressure sensor, which is fixedly connected to the outside of the return pipe 2. A pressure relief valve body is fixedly connected to the outside of the return pipe 2. A pressure relief pipe is fixedly connected to the outside of the pressure relief valve body. A pressure relief shaft is slidably connected inside the pressure relief valve body. A valve disc is fixedly connected to the bottom of the pressure relief shaft. A spring is fixedly connected to the top of the valve disc. A valve seat is fixedly connected inside the pressure relief valve body.
[0007] Preferably, a through hole is provided at the connection between the return pipe and the pressure relief valve body, allowing the two to communicate with each other.
[0008] Preferably, the pressure relief valve body will open when the valve disc moves away from the valve seat.
[0009] Preferably, when the valve disc approaches the valve seat, the pressure relief valve body will close internally.
[0010] Preferably, the liquid storage and stirring assembly includes a liquid storage tank, which is fixedly connected to the top of the electrical control device. The top of the liquid storage tank has a feed inlet, and a motor is fixedly connected to the top of the liquid storage tank. The output end of the motor is connected to a stirring head.
[0011] Preferably, the top of the storage tank has a through hole, and the stirring head is rotatably connected to the inside of the storage tank through the through hole.
[0012] The beneficial effects of this utility model are:
[0013] 1. During the backwashing process, when the water pressure in the pipeline is too high, the valve disc moves away from the valve seat, the pressure relief valve body opens, and liquid will spray out from the pressure relief pipe, reducing the water pressure in the pipeline. When the water pressure in the pipeline is normal, the valve disc moves closer to the valve seat, and the pressure relief valve body closes.
[0014] 2. When pouring in the cleaning agent, turn on the motor and the stirring head will mix the cleaning agent evenly. The waste liquid generated from cleaning flows into the waste liquid bucket through the filter screen. Impurities are blocked above the filter screen. When it needs to be replaced or cleaned, remove the filter screen by the handle. Attached Figure Description
[0015] Figure 1 The diagram shown is a schematic representation of the overall structure of the EPDM hose timed backflushing cleaning device of this utility model.
[0016] Figure 2 The diagram shown is a schematic internal cross-sectional view of the present invention.
[0017] Figure 3 The diagram shown is a schematic representation of the rinsing assembly of this utility model.
[0018] Figure 4 The diagram shown is a cross-sectional view of the pressure relief component of this utility model.
[0019] Figure 5The diagram shown is a cross-sectional view of the liquid storage and stirring assembly of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Base plate; 201. Waste liquid tank; 202. Ring block; 203. Drain block; 204. Filter screen; 205. Handle; 206. Drain outlet; 207. Support column one; 208. Support column two; 209. Electrical control device; 210. Booster pump; 211. Solenoid valve one; 212. Inlet pipe; 213. Return pipe one; 214. EPDM hose; 215. Solenoid valve two; 216. Outlet pipe one; 217. Return pipe two; 218. Return pipe three; 219. Solenoid valve three; 220. Pressure sensor; 221. Pressure relief valve body; 222. Pressure relief pipe; 223. Pressure relief shaft; 224. Valve disc; 225. Spring; 226. Valve seat; 301. Storage tank; 302. Feed inlet; 303. Motor; 304. Stirring head. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-5This utility model provides an embodiment of a timed backflushing cleaning device for ethylene propylene rubber hoses, including a base plate 1; it also includes a pressure relief assembly and a liquid storage and stirring assembly. A waste liquid tank 201 is fixedly connected to the top of the base plate 1. A ring block 202 is fixedly connected inside the waste liquid tank 201. A drain block 203 is fixedly connected to the top of the ring block 202. A filter screen 204 is provided on the inner side of the ring block 202. A handle 205 is fixedly connected to the top of the filter screen 204. A drain outlet 206 is fixedly connected to the outside of the waste liquid tank 201. A first support column 207 and a second support column 208 are fixedly connected to the top of the base plate 1. An electrical control device 209 is fixedly connected to the top of the base plate 1. A booster pump 210 is fixedly connected to the top of device 209. A solenoid valve 211 is fixedly connected to the top of support column 207. An inlet pipe 212 is fixedly connected to the outside of solenoid valve 211. A return pipe 213 is fixedly connected to the outside of solenoid valve 211. An EPDM hose 214 is fixedly connected to the outside of solenoid valve 211. A solenoid valve 215 is fixedly connected to the top of support column 208. An outlet pipe 216 is fixedly connected to the outside of solenoid valve 215. A return pipe 217 is fixedly connected to the outside of solenoid valve 215. A return pipe 218 is fixedly connected to the outside of booster pump 210. A solenoid valve 219 is fixedly connected inside return pipe 218. A pressure relief assembly is fixedly connected to the outside of the liquid return pipe 217. A liquid storage and stirring assembly is fixedly connected to the top of the electronic control device 209. The pressure relief assembly includes a pressure sensor 220, which is fixedly connected to the outside of the return pipe 217. A pressure relief valve body 221 is fixedly connected to the outside of the pressure relief valve body 221. A pressure relief pipe 222 is fixedly connected to the outside of the pressure relief valve body 221. A pressure relief shaft 223 is slidably connected inside the pressure relief valve body 221. A valve disc 224 is fixedly connected to the bottom of the pressure relief shaft 223. A spring 225 is fixedly connected to the top of the valve disc 224. A valve seat 226 is fixedly connected inside the pressure relief valve body 221. When using this device, the settings are configured by the electronic control device 209. The timing of stirring and backwashing is set. During backwashing, solenoid valves 1 (211), 2 (215), and 3 (219) open simultaneously. The well-stirred cleaning agent is pressurized by booster pump 210 and backwashed through EPDM hose 214. Pressure sensor 220 detects the pressure inside the hose. When the water pressure in the pipe is too high, valve disc 224 moves away from valve seat 226, and the pressure relief valve body 221 opens, allowing liquid to spray out from pressure relief pipe 222, thus reducing the water pressure in the pipe. When the water pressure in the pipe is normal, valve disc 224 moves closer to valve seat 226, and the pressure relief valve body 221 closes. The waste liquid generated during cleaning is discharged through return pipe 1 (213) onto filter screen 204 and then filtered into waste liquid tank 201.
[0023] Please see Figures 1-4In this embodiment, a through hole is provided at the connection between the return pipe 217 and the pressure relief valve body 221, allowing them to communicate with each other. The through hole helps the pressure relief valve body 221 protect the pipeline. When the valve disc 224 moves away from the valve seat 226, the pressure relief valve body 221 will open. The valve disc 224 facilitates the opening and closing of the pressure relief valve body 221 in coordination with the valve seat 226. When the valve disc 224 moves close to the valve seat 226, the pressure relief valve body 221 will close. The valve disc 224 facilitates the opening and closing of the pressure relief valve body 221 in coordination with the valve seat 226.
[0024] Please see Figure 5 In this embodiment, the liquid storage and stirring assembly includes a liquid storage tank 301, which is fixedly connected to the top of the electronic control device 209. The top of the liquid storage tank 301 has a feed inlet 302, and a motor 303 is fixedly connected to the top of the liquid storage tank 301. The output end of the motor 303 is connected to a stirring head 304. Before using the device, detergent is poured into the liquid storage tank 301 in advance, and the timed stirring time is set by the electronic control device 209. When backwashing of the pipeline is required, the motor 303 is started first, and the stirring head 304 stirs the detergent in the liquid storage tank 301 evenly. The top of the liquid storage tank 301 has a through hole, and the stirring head 304 is rotatably connected to the inside of the liquid storage tank 301 through the through hole. The through hole facilitates the rotation of the stirring head 304 inside the liquid storage tank 301.
[0025] During operation, cleaning agent is poured into the storage tank 301 in advance. The timed stirring and backwashing times are set by the electronic control device 209. When backwashing is required, the motor 303 is started first, and the stirring head 304 stirs the cleaning agent in the storage tank 301 evenly. During backwashing, solenoid valve 1 211, solenoid valve 215, and solenoid valve 3 219 are opened simultaneously. The evenly stirred cleaning agent is pressurized by the booster pump 210 and backwashed through the EPDM hose 214. The pressure sensor 220 detects the pressure in the hose. When the water pressure in the hose is too high, the valve disc 224 moves away from the valve seat 226, and the pressure relief valve body 221 opens. Liquid will spray out from the pressure relief pipe 222, reducing the water pressure in the hose. When the water pressure in the hose is normal, the valve disc 224 moves closer to the valve seat 226, and the pressure relief valve body 221 closes. The waste liquid generated during cleaning is discharged into the filter screen 204 through the return pipe 1 213 and then filtered into the waste liquid tank 201.
[0026] Through the above steps, when the device is in use, the timed stirring time and backwashing time are set by the electronic control device 209. During backwashing, solenoid valve 1 211, solenoid valve 215, and solenoid valve 3 219 are opened simultaneously. The well-stirred cleaning agent is pressurized by the booster pump 210 to backwash the EPDM hose 214. The pressure sensor 220 detects the pressure in the hose. When the water pressure in the hose is too high, the valve disc 224 moves away from the valve seat 226, the pressure relief valve body 221 opens, and liquid will spray out from the pressure relief pipe 222. This reduces the water pressure in the pipeline. When the water pressure in the pipeline is normal, the valve disc 224 approaches the valve seat 226, and the pressure relief valve body 221 closes. The waste liquid generated during cleaning is discharged into the filter screen 204 through the return pipe 213, and then filtered into the waste liquid tank 201. This helps to overcome the problems that during the backwash cleaning process, not only is it necessary to pre-pour the cleaning agent and manually stir it evenly, which is time-consuming and laborious, but high-pressure backwash may also damage the hose. At the same time, the direct discharge of untreated waste liquid into the waste tank also poses an environmental pollution risk.
Claims
1. A timed backflushing cleaning device for ethylene propylene rubber hoses, comprising a base plate (1); characterized in that: It also includes a pressure relief assembly and a liquid storage and stirring assembly. A waste liquid tank (201) is fixedly connected to the top of the base plate (1). A ring block (202) is fixedly connected inside the waste liquid tank (201). A drain block (203) is fixedly connected to the top of the ring block (202). A filter screen (204) is provided on the inner side of the ring block (202). A handle (205) is fixedly connected to the top of the filter screen (204). A drain outlet (206) is fixedly connected to the outside of the waste liquid tank (201). A support column one (207) is fixedly connected to the top of the base plate (1). A support column two (208) is fixedly connected to the top of the base plate (1). An electrical control device (209) is fixedly connected to the top of the base plate (1). A booster pump (210) is fixedly connected to the top of the electrical control device (209). A support column one (207) is fixedly connected to the top of the support column (207). Solenoid valve 1 (211), solenoid valve 1 (211) is externally fixedly connected to inlet pipe (212), solenoid valve 1 (211) is externally fixedly connected to return pipe 1 (213), solenoid valve 1 (211) is externally fixedly connected to ethylene propylene rubber hose (214), solenoid valve 2 (215) is fixedly connected to the top of support column 2 (208), solenoid valve 2 (215) is externally fixedly connected to outlet pipe 1 (216), solenoid valve 2 (215) is externally fixedly connected to return pipe 2 (217), booster pump (210) is externally fixedly connected to return pipe 3 (218), solenoid valve 3 (219) is internally fixedly connected to return pipe 3 (218), pressure relief assembly is externally fixedly connected to return pipe 2 (217), and liquid storage stirring assembly is fixedly connected to the top of electrical control device (209).
2. The timed backflushing cleaning device for ethylene propylene rubber hoses according to claim 1, characterized in that: The pressure relief assembly includes a pressure sensor (220), which is fixedly connected to the outside of the return pipe (217). A pressure relief valve body (221) is fixedly connected to the outside of the return pipe (217). A pressure relief pipe (222) is fixedly connected to the outside of the pressure relief valve body (221). A pressure relief shaft (223) is slidably connected inside the pressure relief valve body (221). A valve disc (224) is fixedly connected to the bottom of the pressure relief shaft (223). A spring (225) is fixedly connected to the top of the valve disc (224). A valve seat (226) is fixedly connected inside the pressure relief valve body (221).
3. The EPDM hose timed backflushing cleaning device according to claim 2, characterized in that: A through hole is provided at the connection between the return pipe 2 (217) and the pressure relief valve body (221) to allow them to communicate with each other.
4. The timed backflushing cleaning device for ethylene propylene rubber hoses according to claim 2, characterized in that: When the valve disc (224) moves away from the valve seat (226), the pressure relief valve body (221) will open.
5. The timed backflushing cleaning device for ethylene propylene rubber hoses according to claim 2, characterized in that: When the valve disc (224) approaches the valve seat (226), the inside of the pressure relief valve body (221) will close.
6. The timed backflushing cleaning device for ethylene propylene rubber hoses according to claim 1, characterized in that: The liquid storage and stirring assembly includes a liquid storage tank (301), which is fixedly connected to the top of the electrical control device (209). The top of the liquid storage tank (301) is provided with a feed inlet (302), and a motor (303) is fixedly connected to the top of the liquid storage tank (301). The output end of the motor (303) is connected to a stirring head (304).
7. The EPDM hose timed backflushing cleaning device according to claim 6, characterized in that: The top of the liquid storage tank (301) has a through hole, and the stirring head (304) is rotatably connected to the inside of the liquid storage tank (301) through the through hole.