Submersible pump capable of preventing blockage and backflow

Abstract

The utility model relates to the technical field of submersible pumps, and discloses a submersible pump capable of preventing blockage and backflow, which comprises a main body mechanism, a water pumping mechanism and a backflow preventing mechanism, the water pumping mechanism is positioned below the main body mechanism, the backflow preventing mechanism is positioned inside the main body mechanism, and the main body mechanism comprises a device main body and a waterproof protective shell. The waterproof protection shell is fixedly installed at the lower end of the device body, the body mechanism further comprises a supporting rod, a butt joint assembly and a sediment blocking bottom plate, and the supporting rod is fixedly installed at the lower end of the waterproof protection shell. According to the submersible pump capable of preventing blockage and backflow, by installing the water pumping mechanism, when the submersible pump is used, a certain distance can be formed between a water inlet pipe of the submersible pump and the bottom through a bottom silt blocking bottom plate, the submersible pump is prevented from directly sucking excessive silt, a filter screen is arranged in the submersible pump, the silt can be filtered, and the water pumping mechanism is convenient to use. And silt is prevented from entering the device to damage the device during use.

Description

TECHNICAL FIELD

[0001] The utility model relates to submersible pump technical field, concretely is a submersible pump of preventing block and backflow. BACKGROUND

[0002] Submersible pump is the important equipment of deep well water lifting, when using, the whole unit is submerged in water and works, and the underground water is extracted to the ground surface, which is composed of water pump and submersible motor, and is suitable for many aspects at present, wherein the water well of rural area mostly uses the device to pump water at present.

[0003] The prior art CN219176619U is a submersible pump, which has the characteristics of reasonable structure and convenient use, through the mutual cooperation between the support, the supporting plate, the fixing seat and the limiting groove, the fixing of the support can be more convenient and firm, so that the condition of tilting can be avoided during use, and the water level sensor can avoid the idling of the pump body, so that the use of the pump body is more safe and convenient.

[0004] The prior art is usually submerged in the bottom of the deep well when used, and the bottom of the deep well usually has a large amount of silt, which may be sucked into the device during use of the submersible pump, resulting in damage to the internal equipment. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] The utility model aims at providing a submersible pump for preventing block and backflow, so as to solve the problem that the silt at the bottom is sucked into the device, resulting in damage to the internal equipment.

[0007] (II) Technical scheme

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a submersible pump for preventing block and backflow, comprising a main body mechanism, a water pumping mechanism and an anti-backflow mechanism, the water pumping mechanism is located below the main body mechanism, the anti-backflow mechanism is located inside the main body mechanism, the main body mechanism comprises a device main body and a waterproof protective shell, the waterproof protective shell is fixedly installed at the lower end of the device main body.

[0009] The main body mechanism further comprises a supporting rod, a butt joint assembly and a silt blocking bottom plate, the supporting rod is fixedly installed at the lower end of the waterproof protective shell, the butt joint assembly is fixedly installed at the upper end of the device main body, and the silt blocking bottom plate is fixedly installed at the lower end of the supporting rod.

[0010] Preferably, the docking assembly includes a sealing ring, a water outlet pipe, a docking thread, and a water outlet. The sealing ring is fixedly installed on the upper end of the device body, the water outlet pipe is fixedly installed on the upper end of the sealing ring, the docking thread is fixedly located at the outer end of the water outlet pipe, and the water outlet is fixedly located at the upper end of the water outlet pipe. This allows the device to be used with a water outlet pipe, and the threaded connection makes the connection simpler. The sealing ring also improves the sealing performance of the device during use.

[0011] Preferably, the pumping mechanism includes a second sealing ring, a power cord, a pump, a water inlet pipe, a water inlet, a filter screen, a reinforcing outer plate, a guide pipe, and a guide chamber, with the second sealing ring fixedly installed on the upper end of the waterproof protective shell.

[0012] Preferably, the power cord is fixedly installed at the upper end of the sealing ring two, the water pump is fixedly installed at the inner end of the waterproof protective shell, the water pump is electrically connected to the power cord, the water inlet pipe is fixedly installed at the lower end of the water pump, and the water inlet is fixedly located at the lower end of the water inlet pipe, which makes the structure of the device more reasonable.

[0013] Preferably, the filter screen is fixedly installed on the lower inner side of the water inlet pipe, the reinforcing outer plate is fixedly installed on the inner end of the main body of the device, the guide pipe is fixedly installed on the upper end of the water pump, and the guide chamber is fixedly installed on the inner end of the guide pipe. The device is equipped with a filter screen inside, which can filter out mud and sand and prevent mud and sand from entering the device and causing damage during use.

[0014] Preferably, the anti-backflow mechanism includes a coarse guide pipe, a fine guide pipe, a fixed partition, a first positioning plate, a telescopic rod, a movable spring, a second positioning plate, a connecting rod, and a movable float. The coarse guide pipe is fixedly installed on the upper inner side of the main body of the device, which can give the device a slow flow effect. When the device is in use, the bottom mud and sand blocking plate can keep the water inlet pipe of the device at a certain distance from the bottom, preventing direct intake of mud and sand.

[0015] Preferably, the guide tube is fixedly installed at the lower end of the guide tube, the fixed partition is fixedly installed at the lower end of the guide tube, the positioning plate is fixedly installed at the upper end of the fixed partition, and the telescopic rod is movably installed at the upper end of the positioning plate, which makes the structure of the device more reasonable.

[0016] Preferably, the movable spring is movably installed on the outer end of the telescopic rod, the second positioning piece is movably installed on the upper end of the telescopic rod, the connecting rod is fixedly installed on the upper end of the second positioning piece, and the movable float is movably installed on the inner end of the guide tube. The movable float is fixedly connected to the connecting rod, which allows the outlet pipe of the device to have a one-way valve structure. After the power is cut off, the movable float will be stuck above the guide tube, so that the water in the upper pipe will not flow downward due to gravity, achieving the effect of no backflow.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This submersible pump, designed to prevent clogging and backflow, is equipped with a pumping mechanism. During use, the bottom mud-blocking plate ensures that the water inlet pipe is a certain distance from the bottom, preventing the device from directly sucking in excessive mud and sand. Furthermore, an internal filter screen is installed to filter out mud and sand, preventing it from entering the device and causing damage during use.

[0019] 2. This submersible pump, which prevents clogging and backflow, has a backflow prevention mechanism installed. This mechanism allows the outlet pipe of the device to have a one-way valve structure. After power is cut off, the movable float will be stuck above the guide tube, preventing the water in the upper pipe from flowing downwards due to gravity, thus achieving the effect of preventing backflow.

[0020] 3. This submersible pump, designed to prevent clogging and backflow, can be connected to water pipes via a docking assembly. The threaded connection simplifies the connection process, and the included sealing ring ensures a better seal during use. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of this utility model.

[0027] In the diagram: 1. Main structure; 101. Main body of the device; 102. Waterproof protective shell; 103. Support rod; 104. Docking assembly; 105. Mud-blocking sand base plate; 1041. Sealing ring one; 1042. Water outlet pipe; 1043. Docking thread; 1044. Water outlet; 2. Pumping mechanism; 201. Sealing ring two; 202. Power cord; 203. Pumper; 204. Water inlet pipe; 205. Water inlet; 206. Filter screen; 207. Reinforcing outer plate; 208. Guide pipe; 209. Guide chamber; 3. Anti-backflow mechanism; 301. Guide pipe (coarse); 302. Guide pipe (fine); 303. Fixed partition; 304. Positioning plate one; 305. Telescopic rod; 306. Movable spring; 307. Positioning plate two; 308. Docking rod; 309. Movable float. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 - Figure 6 This utility model provides a technical solution: a submersible pump to prevent clogging and backflow, including a main body 1, a pumping mechanism 2 and an anti-backflow mechanism 3. The pumping mechanism 2 is located below the main body 1, and the anti-backflow mechanism 3 is located inside the main body 1. The main body 1 includes a device body 101 and a waterproof protective shell 102. The waterproof protective shell 102 is fixedly installed at the lower end of the device body 101.

[0030] The main body 1 also includes a support rod 103, a docking assembly 104, and a mud and sand blocking base plate 105. The support rod 103 is fixedly installed at the lower end of the waterproof protective shell 102, the docking assembly 104 is fixedly installed at the upper end of the device body 101, and the mud and sand blocking base plate 105 is fixedly installed at the lower end of the support rod 103. The docking assembly 104 includes a sealing ring 1041, a water outlet pipe 1042, a docking thread 1043, and a water outlet 1044. The sealing ring 1041 is fixedly installed at the upper end of the device body 101, the water outlet pipe 1042 is fixedly installed at the upper end of the sealing ring 1041, the docking thread 1043 is fixedly installed at the outer end of the water outlet pipe 1042, and the water outlet 1044 is fixedly installed at the upper end of the water outlet pipe 1042.

[0031] The pumping mechanism 2 includes a second sealing ring 201, a power cord 202, a pump 203, an inlet pipe 204, an inlet 205, a filter screen 206, a reinforcing outer plate 207, a guide pipe 208, and a guide chamber 209. The second sealing ring 201 is fixedly installed on the upper end of the waterproof protective shell 102. The power cord 202 is fixedly installed on the upper end of the second sealing ring 201. The pump 203 is fixedly installed on the inner end of the waterproof protective shell 102 and is electrically connected to the power cord 202. The inlet pipe 204 is fixedly installed on the lower end of the pump 203. The inlet 205 is fixedly located on the lower end of the inlet pipe 204. The filter screen 206 is fixedly installed on the lower inner side of the inlet pipe 204. The outer reinforcing plate 207 is fixedly installed at the inner end of the main body 101 of the device, the guide pipe 208 is fixedly installed at the upper end of the pump 203, and the guide chamber 209 is fixedly installed at the inner end of the guide pipe 208. The device is placed in a deep well, and it is equipped with a bottom plate 105 to prevent mud and sand from entering the well. The support rod 103 ensures that the water inlet pipe 204 is a certain distance from the bottom. The inside of the water inlet pipe 204 is equipped with a filter screen 206 to filter the mud and sand. The device is equipped with a reinforcing outer plate 207, which allows the device to withstand greater water pressure and sink to a deeper depth. The multi-layer filtration prevents mud and sand from being sucked into the device during use, thus extending the service life of the device.

[0032] The anti-backflow mechanism 3 includes a coarse guide pipe 301, a fine guide pipe 302, a fixed partition 303, a positioning plate 304, a telescopic rod 305, a movable spring 306, a second positioning plate 307, a connecting rod 308, and a movable float 309. The coarse guide pipe 301 is fixedly installed on the upper inner side of the main body 101 of the device. The fine guide pipe 302 is fixedly installed on the lower end of the coarse guide pipe 301. The fixed partition 303 is fixedly installed on the lower end of the fine guide pipe 302. The first positioning plate 304 is fixedly installed on the upper end of the fixed partition 303. The telescopic rod 305 is movably installed on the upper end of the first positioning plate 304. The movable spring 306 is movably installed on the outer end of the telescopic rod 305. The second positioning plate 307 is movably installed on the connecting rod 308. At the upper end of the retractable rod 305, the connecting rod 308 is fixedly installed on the upper end of the positioning plate 307. The movable float 309 is movably installed at the inner end of the guide tube 301. The movable float 309 is fixedly connected to the connecting rod 308. When the power cord 202 is connected to the power supply, the pump 203 is started, and water from the deep well is pumped in through the inlet pipe 204. Through the internal guide tube 302, the movable float 309 is pushed upward. The water flows through the guide tube 301 to the outlet pipe 1042 to pump out the water. After the power is cut off, the movable float 309 will be pressed above the guide tube 302 by the water pressure, preventing the water in the guide tube 301 from flowing into the guide tube 302 due to gravity, thus isolating the backflow phenomenon.

[0033] Working principle: When using this device in a deep well, the water pipe is spirally connected to the outlet pipe 1042 via the mating thread 1043. A sealing ring 1041 is provided to improve the sealing performance of the device during use. The device is placed in the deep well, and a bottom plate 105 is provided to prevent mud and sand from entering. The support rod 103 ensures that the inlet pipe 204 is at a certain distance from the bottom. The inlet pipe 204 has a filter screen 206 inside to filter mud and sand. The device is equipped with a reinforcing outer plate 207 to allow it to withstand greater loads. With high water pressure, the device can penetrate to a deeper depth. Multi-layer filtration prevents sediment from being sucked into the device during use, thus extending its service life. Connecting the power cord 202 activates the pump 203, drawing water from the deep well through the inlet pipe 204. The water then flows through the internal guide tube 302, pushing the movable float 309 upwards. The water then flows through the guide tube 301 to the outlet pipe 1042, where it is extracted. After power is cut off, the movable float 309 is held above the guide tube 302 by water pressure, preventing water in the guide tube 301 from flowing back into the guide tube 302 due to gravity, thus preventing backflow.

[0034] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A submersible pump for preventing clogging and backflow, comprising a main body (1), a pumping mechanism (2), and an anti-backflow mechanism (3), characterized in that: The pumping mechanism (2) is located below the main body (1), and the anti-backflow mechanism (3) is located inside the main body (1). The main body (1) includes a device body (101) and a waterproof protective shell (102). The waterproof protective shell (102) is fixedly installed at the lower end of the device body (101). The main body (1) also includes a support rod (103), a docking assembly (104), and a mud-blocking sand base plate (105). The support rod (103) is fixedly installed at the lower end of the waterproof protective shell (102), the docking assembly (104) is fixedly installed at the upper end of the main body (101), and the mud-blocking sand base plate (105) is fixedly installed at the lower end of the support rod (103).

2. A submersible pump for preventing clogging and backflow according to claim 1, characterized in that: The docking assembly (104) includes a sealing ring (1041), a water outlet pipe (1042), a docking thread (1043), and a water outlet (1044). The sealing ring (1041) is fixedly installed on the upper end of the device body (101). The water outlet pipe (1042) is fixedly installed on the upper end of the sealing ring (1041). The docking thread (1043) is fixedly installed on the outer end of the water outlet pipe (1042). The water outlet (1044) is fixedly installed on the upper end of the water outlet pipe (1042).

3. A submersible pump for preventing clogging and backflow according to claim 2, characterized in that: The pumping mechanism (2) includes a second sealing ring (201), a power cord (202), a pump (203), a water inlet pipe (204), a water inlet (205), a filter screen (206), a reinforcing outer plate (207), a guide pipe (208), and a guide chamber (209). The second sealing ring (201) is fixedly installed on the upper end of the waterproof protective shell (102).

4. A submersible pump for preventing clogging and backflow according to claim 3, characterized in that: The power cord (202) is fixedly installed on the upper end of the sealing ring (201), the water pump (203) is fixedly installed on the inner end of the waterproof protective shell (102), the water pump (203) is electrically connected to the power cord (202), the water inlet pipe (204) is fixedly installed on the lower end of the water pump (203), and the water inlet (205) is fixedly installed on the lower end of the water inlet pipe (204).

5. A submersible pump for preventing clogging and backflow according to claim 4, characterized in that: The filter screen (206) is fixedly installed on the lower inner side of the water inlet pipe (204), the reinforcing outer plate (207) is fixedly installed on the inner end of the main body of the device (101), the guide pipe (208) is fixedly installed on the upper end of the pump (203), and the guide chamber (209) is fixedly installed on the inner end of the guide pipe (208).

6. A submersible pump for preventing clogging and backflow according to claim 5, characterized in that: The backflow prevention mechanism (3) includes a thick guide tube (301), a thin guide tube (302), a fixed partition (303), a positioning plate one (304), a telescopic rod (305), a movable spring (306), a positioning plate two (307), a docking rod (308), and a movable float (309). The thick guide tube (301) is fixedly installed on the upper inner side of the main body (101) of the device.

7. A submersible pump for preventing clogging and backflow according to claim 6, characterized in that: The flow guide tube (302) is fixedly installed at the lower end of the flow guide tube (301), the fixed partition (303) is fixedly installed at the lower end of the flow guide tube (302), the positioning piece (304) is fixedly installed at the upper end of the fixed partition (303), and the telescopic rod (305) is movably installed at the upper end of the positioning piece (304).

8. A submersible pump for preventing clogging and backflow according to claim 7, characterized in that: The movable spring (306) is movably installed on the outer end of the telescopic rod (305), the second positioning piece (307) is movably installed on the upper end of the telescopic rod (305), the docking rod (308) is fixedly installed on the upper end of the second positioning piece (307), the movable float (309) is movably installed on the inner end of the guide tube (301), and the movable float (309) is fixedly connected to the docking rod (308).

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