Device for realizing coal-water separation in coal conveying

Abstract

The utility model relates to the technical field of coal-water separation, in particular to a coal-water separation device in coal conveying, which comprises a ground, a crawler belt arranged at the top of the ground, a guide plate arranged at the left end of the crawler belt, a separation frame arranged on the left side of the guide plate, a guide groove arranged at the front end of the separation frame, and a coal conveying groove arranged at the bottom of the separation frame. The bottom of the coal conveying groove is fixedly connected with the ground through a plurality of supporting rods, a locking plate is arranged outside each supporting rod, a splash-proof plate is arranged on the inner side of each locking plate, a water tank is further fixed to the top of the ground, a filter pipe is fixed to the top of the water tank, and a cleaning rod is arranged at the top of the splash-proof plate at the front end. A high-pressure spray head is arranged at the rear end of the cleaning rod; water can enter the water storage tank through the separation frame and then flow out through the flow guide groove, and meanwhile coal flows into the coal conveying groove through the separation frame, so that coal-water separation is achieved, the drying degree of conveyed coal is guaranteed, and the coal conveying effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal-water separation, in particular to a device for realizing coal-water separation during coal transportation. Background Art

[0002] During coal transportation, large amounts of water often enter the coal due to factors such as moisture in the coal seam, water seepage from the roof, and water inrush from the goaf. This moisture not only increases the weight and transportation cost of the coal, but also affects its combustion efficiency and quality. Therefore, achieving coal-water separation during transportation is crucial for improving coal utilization efficiency and economic benefits.

[0003] However, most of the existing coal-water separation methods discharge the separated wastewater directly into the coal mine tunnels, thereby wasting a large amount of water resources and causing high ground humidity. At the same time, the existing coal-water separation devices will have a large amount of coal dust flying when in use, which can injure people. In this regard, the utility model designs a device for realizing coal-water separation during coal transportation to solve the above problems. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a device for realizing coal-water separation during coal transportation, which effectively solves the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for realizing coal-water separation during coal transportation, comprising a ground, two support plates fixed on the top of the ground, crawlers rotatably connected to the two support plates through a rotating shaft, a guide plate fixedly connected to the support plate at the left end of the crawler, a separation frame provided on the left side of the guide plate, a guide groove provided at the front end of the separation frame, a coal conveying trough provided at the bottom of the separation frame, the bottom of the coal conveying trough fixedly connected to the ground through a plurality of support rods, a locking rod provided on the outside of each support rod, and each locking rod A locking plate is fixed on the top, and a splash plate is provided on the inner side of each group of locking plates. A plurality of clips are fixed to the bottom of each splash plate, and the bottom of each clip is rotatably connected to the connecting block at the top of the coal conveying trough through a rotating shaft. Each splash plate can fit tightly with the outer end of the support plate. A water tank is also fixed on the top of the ground, and a controller is fixed on the top of the water tank. A power supply is fixed to the right end of the controller, and a filter tube is fixed to the rear of the controller. A cleaning rod is provided on the top of the splash plate at the front end, and a cleaning plate is provided at the rear end of the cleaning rod, and a high-pressure nozzle is fixed to the bottom of the cleaning plate.

[0006] Preferably, the left side of the guide plate is fastened with a positioning rod by two locking buckles, the left end of the positioning rod is fixedly connected to the separation frame, a water storage tank is fixed to the bottom of the separation frame, the front end of the water storage tank is fixedly connected to the guide trough, and the guide trough is clamped with the slot at the front end of the coal conveying trough.

[0007] Preferably, a positioning plate is fixed to the outside of each support rod, each positioning plate is slidably connected to the locking rod inside it, each locking plate can fit tightly with the splash plate inside it, and the bottom of the locking rod at each end is fixedly connected by a connecting plate.

[0008] Preferably, a reversing plate is fixed on the top of the splash guard at the front end, and the reversing plate is rotatably connected to the cleaning rod inside it through a rotating shaft. A reversing motor is fixed on the left side of the reversing plate, and the reversing motor is rotatably connected to the cleaning rod through a rotating shaft. A cleaning motor is fixed at the rear end of the cleaning rod, and the cleaning motor is rotatably connected to the cleaning plate at its rear end through a rotating shaft.

[0009] Preferably, a camera is also fixed to the rear end of the cleaning plate, a water pipe is fixed to the top of the high-pressure nozzle, a solenoid valve is fixed to the other end of the water pipe, a water pump is fixed to the left side of the solenoid valve, the left side of the water pump is fixedly connected to the water tank through a pipe, a water level sensor is also fixed to the top of the water tank, an antenna is fixed to the right end of the water level sensor, a filter plate is slidably connected to the inside of the filter tube, a handle is fixed to the top of the filter plate, a support ring is slidably connected to the bottom of the filter plate, the support ring is fixedly connected to the filter tube, and a water flow sensor is provided at the bottom of the support ring and is fixedly connected to the filter tube.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] (1) The utility model can make the separation frame detachable by cooperating with the positioning rod and the locking buckle. At the same time, water can enter the water storage tank through the separation frame and then flow out through the guide groove. At the same time, the coal can flow into the coal conveying trough through the separation frame, thereby realizing the separation of coal and water, thereby ensuring the dryness of the coal and thus ensuring the coal conveying effect.

[0012] (2) The utility model can make the locking plate be located at the top when not under force by cooperating with the locking rod and the locking spring, thereby preventing the splash plate from rotating. At the same time, due to the action of the support plate, the splash plate is vertical when not under force, thereby preventing coal and water from splashing during coal-water separation, thereby ensuring the cleanliness of the environment and preventing coal debris from injuring people, thereby ensuring the safety of the staff. At the same time, due to the action of the buckle and the connecting block, the splash plate can be rotated, thereby facilitating the disassembly of the separation frame, thereby further improving the equipment installation efficiency.

[0013] (3) The utility model can transport the clean water inside the water tank to the splash plate through the water pipe through the water pump and the electromagnetic valve, so as to clean the separation frame. At the same time, the cleaning motor can be coordinated with the cleaning rod to enable the high-pressure nozzle to move back and forth and rotate at the same time, so as to clean any position on the surface of the separation frame, thereby improving the cleaning efficiency while ensuring the cleaning accuracy, thereby ensuring the cleaning effect. At the same time, due to the water tank, the sewage can be filtered and collected, thereby reducing the waste of water resources while ensuring the dryness of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached figure:

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 This is a schematic top view of the utility model;

[0018] Figure 3 This is a schematic diagram of the top of the water tank of the utility model;

[0019] Figure 4 This is a schematic diagram of the filter tube of the utility model;

[0020] Figure 5 This is a schematic diagram of the rear end of the cleaning rod of the utility model;

[0021] Figure 6 This is a schematic cross-sectional view of the rear end of the utility model;

[0022] Figure 7 This is a schematic diagram of the interior of the separation frame of the utility model;

[0023] Figure 8 This is a schematic diagram of the interior of the filter tube of the utility model.

[0024] In the figure: 1-ground; 2-track; 3-splash plate; 4-connecting plate; 5-water tank; 6-water pump; 7-cleaning rod; 8-separation frame; 201-support plate; 202-coal chute; 203-support rod; 204-guide plate; 301-clip; 302-connecting block; 401-positioning plate; 402-locking rod; 403-locking plate; 404-locking spring; 501-controller; 502-power supply; 503-water level sensor Sensor; 504-water flow sensor; 505-filter tube; 506-antenna; 507-filter plate; 508-handle; 509-support ring; 601-solenoid valve; 602-water pipe; 603-high-pressure nozzle; 604-camera; 701-reversing motor; 702-reversing plate; 703-cleaning motor; 704-cleaning plate; 801-guide groove; 802-positioning rod; 803-locking buckle; 804-water storage tank. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Embodiment 1, by Figure 1-Figure 3 、 Figure 5It is given that the utility model includes a ground 1, which is used to support the entire equipment. Two support plates 201 are fixed on the top of the ground 1. The support plates 201 are made of alloy material. The two support plates 201 are rotatably connected to a crawler 2 through a rotating shaft. The crawler 2 is used to transport coal. The support plates 201 are used to support the crawler 2 and to position the splash plate 3. A guide plate 204 is provided at the left end of the crawler 2 and is fixedly connected to the support plate 201. The guide plate 204 is used to guide coal blocks. A separation frame 8 is provided on the left side of the guide plate 204. The separation frame 8 is made of alloy material. The separation frame 8 is used to separate coal and water. The front end of the separation frame 8 A guide trough 801 is provided, and the guide trough 801 is made of alloy material. The guide trough 801 is used to guide sewage. A coal conveying trough 202 is provided at the bottom of the separation frame 8. The coal conveying trough 202 is made of alloy material. The coal conveying trough 202 is used to hold the separated coal blocks. The bottom of the coal conveying trough 202 is fixedly connected to the ground 1 through a plurality of support rods 203. Each of the support rods 203 is provided with a locking rod 402 on the outside. The locking rod 402 is made of alloy material. A locking plate 403 is fixed to the top of each locking rod 402. The locking rod 402 is used to position the locking plate 403. The locking plate 403 is made of alloy material. Each group A splash plate 3 is provided on the inner side of the locking plate 403, and the locking plate 403 is used to lock the splash plate 3. A plurality of clips 301 are fixed to the bottom of each splash plate 3, and the bottom of each clip 301 is rotatably connected to the connecting block 302 at the top of the coal conveying trough 202 through a rotating shaft. The clip 301 cooperates with the connecting block 302 to make the splash plate 3 rotatable, and each splash plate 3 can fit tightly with the outer end of the support plate 201. A water tank 5 is also fixed to the top of the ground 1, and the water tank 5 is used to hold filtered clean water. A controller 501 is fixed to the top of the water tank 5, and the controller 501 is used to control the entire device. The right end of the controller 501 is fixed There is a power supply 502, which provides the required energy for the entire device. A filter tube 505 is fixed to the rear of the controller 501, and the filter tube 505 is made of alloy material. The filter tube 505 is used to position the filter plate 507. A cleaning rod 7 is provided on the top of the splash plate 3 at the front end. The cleaning rod 7 is retractable, thereby driving the cleaning motor 703 to move. A cleaning plate 704 is provided at the rear end of the cleaning rod 7. The cleaning plate 704 is made of alloy material. A high-pressure nozzle 603 is fixed to the bottom of the cleaning plate 704. The cleaning plate 704 is used to position the high-pressure nozzle 603, and the high-pressure nozzle 603 is used to clean the separation frame 8.

[0027] Example 2, based on Example 1, combined with Figure 4 、 Figure 6-Figure 8The left side of the guide plate 204 is fastened with a positioning rod 802 by two locking buckles 803. The left end of the positioning rod 802 is fixedly connected to the separation frame 8. The locking buckle 803 is used to position the positioning rod 802, thereby achieving the purpose of positioning the separation frame 8. A water storage tank 804 is fixed to the bottom of the separation frame 8. The water storage tank 804 is used to hold the separated sewage. The front end of the water storage tank 804 is fixedly connected to the guide trough 801. The guide trough 801 is engaged with the card slot at the front end of the coal conveying trough 202. A positioning plate 401 is fixed to the outside of each support rod 203. The positioning plate 401 is made of alloy material. Each positioning plate 401 is slidably connected to the locking rod 402 inside it. The positioning plate 401 is used to position the crawler 2 inside it, and each locking plate 403 can fit tightly with the splash plate 3 inside it. The bottom of the locking rod 402 at each end is fixedly connected by a connecting plate 4, and the connecting plate 4 is made of alloy material. The connecting plate 4 is used to connect the locking rod 402 at one end thereof. A reversing plate 702 is fixed to the top of the splash plate 3 at the front end, and the reversing plate 702 is made of alloy material. The reversing plate 702 is used to position the cleaning rod 7, and the reversing plate 702 is rotatably connected to the cleaning rod 7 inside it through a rotating shaft. A reversing motor 701 is fixed to the left side of the reversing plate 702, and the reversing motor 701 is rotatably connected to the cleaning rod 7 through a rotating shaft. The reversing motor 701 can Drive the cleaning rod 7 to rotate, the rear end of the cleaning rod 7 is fixed with a cleaning motor 703, the cleaning motor 703 and the cleaning plate 704 at its rear end are rotatably connected through a rotating shaft, the cleaning motor 703 can drive the cleaning plate 704 to rotate, and the rear end of the cleaning plate 704 is also fixed with a camera 604, the camera 604 is used to monitor whether the separation frame 8 is blocked, the top of the high-pressure nozzle 603 is fixed with a water pipe 602, the water pipe 602 is made of flexible material, the water pipe 602 facilitates the movement of the cleaning plate 704, the other end of the water pipe 602 is fixed with a solenoid valve 601, the left side of the solenoid valve 601 is fixed with a water pump 6, the left side of the water pump 6 is fixedly connected to the water tank 5 through a pipeline, the The water pump 6 and the solenoid valve 601 cooperate to pump the clean water inside the water tank 5 to the high-pressure nozzle 603 through the water pipe 602. A water level sensor 503 is also fixed on the top of the water tank 5. The water level sensor 503 is used to monitor the water volume inside the water tank 5. An antenna 506 is fixed to the right end of the water level sensor 503. The antenna 506 facilitates the controller 501 to transmit signals to the ground equipment. A filter plate 507 is slidably connected to the inside of the filter tube 505. The filter plate 507 is used to filter the sewage flowing out of the guide groove 801. A handle 508 is fixed on the top of the filter plate 507. The handle 508 facilitates the movement of the filter plate 507. A support ring 509 is slidably connected to the bottom of the filter plate 507.The support ring 509 is made of alloy material and is used to support the filter plate 507. The support ring 509 is fixedly connected to the filter tube 505. A water flow sensor 504 is provided at the bottom of the support ring 509 and is fixedly connected to the filter tube 505. The water flow sensor 504 is used to monitor the flow rate of water in the filter tube 505.

[0028] Before using this equipment, the staff pulls down the connecting plate 4, so that the locking plate 403 moves downward, thereby opening the splash plate 3. At this time, the staff puts the separation frame 8 into the left end of the guide plate 204, and uses the locking buckle 803 to relatively fix the positioning rod 802 and the guide plate 204, thereby fixing the separation frame 8. The staff further rotates the splash plate 3 to vertical. At this time, due to the action of the locking rod 402 and the locking spring 404, the locking plate 403 moves upward, thereby tightly contacting the outer surface of the splash plate 3, thereby preventing the splash plate 3 from rotating, thereby ensuring the stability of the splash plate 3, thereby achieving the purpose of splash prevention, and further starting the coal-water separation process. At this time, the crawler 2 rotates, thereby conveying the wet coal blocks to the left end of the crawler 2, and then falling onto the separation rack 8. At this time, the guide plate 204 can prevent the wet coal blocks from falling to the ground. At this time, due to the inclination of the separation rack 8, the coal blocks can fall along the separation rack 8 into the coal conveying chute 202, and at the same time, the water can fall along the holes on the separation rack 8 into the water storage tank 804, further flow through the guide groove 801 into the filter pipe 505, and then flow into the water tank 5 through the filter plate 507, thereby completing the coal-water separation. At this time, the controller 501 can monitor the flow rate of the water flow in the filter pipe 505 through the water flow sensor 504 to judge whether the separation rack 8 and the filter plate 507 are blocked. At the same time, the water level sensor 503 can monitor the water level inside the water tank 5. When the water tank 5 is full of clean water, the controller 501 sends a signal to the ground equipment through the antenna 506, and notifies the staff to pump out the clean water inside the water tank 5, thereby saving resources. When the water flow sensor 504 detects that the clean water flow is small, the controller 501 controls the reversing motor 701 to work, thereby driving the cleaning rod 7 to rotate to the horizontal. At this time, the controller 501 can observe the situation of the separation rack 8 through the camera 604. If the separation rack 8 is blocked, the controller 501 controls the water pump 6 and the solenoid valve 601 to cooperate to pump the clean water inside the water tank 5 through The water pipe 602 is transported to the high-pressure nozzle 603 and sprayed from the high-pressure nozzle 603, thereby flushing the debris on the separation frame 8. The controller 501 further controls the cleaning rod 7 and the cleaning motor 703 to work together, so that the high-pressure nozzle 603 can flush any position of the separation frame 8. When the flushing is completed, the controller 501 controls the cleaning rod 7 to reset. If the clean water flow is still small at this time, the controller 501 sends an alarm and sends a signal to the ground equipment. The staff further pulls out the handle 508, further cleans the filter plate 507, and then resets the filter plate 507, thereby further starting work, thereby ensuring the cleanliness of the filter plate 507.This ensures the cleanliness of the water inside the water tank 5 and the filtering effect.

[0029] The working process of the present invention is as follows: before using the device, the staff pulls down the connecting plate 4, so that the locking plate 403 moves downward, thereby opening the splash plate 3. At this time, the staff puts the separation frame 8 into the left end of the guide plate 204, and uses the locking buckle 803 to fix the positioning rod 802 and the guide plate 204 relatively, thereby fixing the separation frame 8. The staff further rotates the splash plate 3 to vertical. At this time, due to the action of the locking rod 402 and the locking spring 404, the locking plate 403 moves upward, thereby tightly contacting the outer surface of the splash plate 3, thereby preventing the splash plate 3 from rotating, thereby ensuring the stability of the splash plate 3, and achieving splash protection. The purpose is to further start the coal-water separation work. At this time, the crawler 2 rotates, thereby conveying the wet coal blocks to the left end of the crawler 2, and then falling onto the separation rack 8. At this time, the guide plate 204 can prevent the wet coal blocks from falling to the ground. At this time, due to the inclination of the separation rack 8, the coal blocks can fall along the separation rack 8 into the coal conveying chute 202, and at the same time, the water can fall along the holes on the separation rack 8 into the water storage tank 804, and further flow through the guide trough 801 into the filter pipe 505, and then flow through the filter plate 507 into the water tank 5, thereby completing the coal-water separation. At this time, the controller 501 can monitor the flow of water in the filter pipe 505 through the water flow sensor 504. The flow rate of the water flow can be used to determine whether the separation rack 8 and the filter plate 507 are blocked. At the same time, the water level sensor 503 can monitor the water level inside the water tank 5. When the water tank 5 is full of clean water, the controller 501 sends a signal to the ground equipment through the antenna 506 and notifies the staff to extract the clean water from the water tank 5, thereby saving resources. When the water flow sensor 504 detects that the clean water flow is small, the controller 501 controls the reversing motor 701 to work, thereby driving the cleaning rod 7 to rotate to the horizontal level. At this time, the controller 501 can observe the situation of the separation rack 8 through the camera 604. If the separation rack 8 is blocked, the controller 501 controls the water pump 6 and the solenoid valve 6 01 cooperates to transport the clean water inside the water tank 5 to the high-pressure nozzle 603 through the water pipe 602, and sprays it out from the high-pressure nozzle 603, thereby flushing the debris on the separation frame 8. Further, the controller 501 controls the cleaning rod 7 and the cleaning motor 703 to work together, so that the high-pressure nozzle 603 can flush any position of the separation frame 8. When the flushing is completed, the controller 501 controls the cleaning rod 7 to reset. If the clean water flow is still small at this time, the controller 501 sends an alarm and sends a signal to the ground equipment. Further, the staff pulls out the handle 508, further cleans the filter plate 507, and then resets the filter plate 507, thereby further starting work.This ensures the cleanliness of the filter plate 507, thereby ensuring the cleanliness of the clean water inside the water tank 5, and thus ensuring the filtering effect.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for separating coal from water during coal transportation, characterized by: The invention comprises a ground (1), wherein two support plates (201) are fixed on the top of the ground (1), and crawlers (2) are rotatably connected to the two support plates (201) through a rotating shaft. A guide plate (204) is provided at the left end of the crawler (2) and is fixedly connected to the support plate (201). A separation frame (8) is provided on the left side of the guide plate (204), and a guide groove (801) is provided at the front end of the separation frame (8). A coal conveying trough (202) is provided at the bottom of the separation frame (8), and the bottom of the coal conveying trough (202) is fixedly connected to the ground (1) through a plurality of support rods (203). A locking rod (402) is provided on the outside of each support rod (203), and a locking plate (403) is fixed on the top of each locking rod (402). Each group of locking plates (403) is provided with a locking plate (403) on the inside. A splash plate (3) is provided, and a plurality of buckles (301) are fixed at the bottom of each splash plate (3). The bottom of each buckle (301) is rotatably connected to the connecting block (302) at the top of the coal conveying trough (202) through a rotating shaft. Each splash plate (3) can be tightly fitted with the outer end of the support plate (201). A water tank (5) is also fixed on the top of the ground (1). A controller (501) is fixed on the top of the water tank (5). A power supply (502) is fixed on the right end of the controller (501). A filter tube (505) is fixed on the rear of the controller (501). A cleaning rod (7) is provided on the top of the front splash plate (3). A cleaning plate (704) is provided at the rear end of the cleaning rod (7). A high-pressure nozzle (603) is fixed on the bottom of the cleaning plate (704).

2. The device for separating coal from water during coal transportation according to claim 1, characterized in that: The left side of the guide plate (204) is fastened with a positioning rod (802) through two locking buckles (803), the left end of the positioning rod (802) is fixedly connected to the separation frame (8), a water storage tank (804) is fixed to the bottom of the separation frame (8), the front end of the water storage tank (804) is fixedly connected to the guide trough (801), and the guide trough (801) is clamped with the clamping slot at the front end of the coal conveying trough (202).

3. The device for separating coal from water during coal transportation according to claim 1, characterized in that: A positioning plate (401) is fixed to the outside of each support rod (203), and each positioning plate (401) is slidably connected to the locking rod (402) inside it. Each locking plate (403) can be tightly fitted with the splash plate (3) inside it, and the bottom of the locking rod (402) at each end is fixedly connected via a connecting plate (4).

4. The device for separating coal from water during coal transportation according to claim 3, characterized in that: A reversing plate (702) is fixed on the top of the front end splash plate (3), and the reversing plate (702) is rotatably connected to the cleaning rod (7) inside the reversing plate (702) via a rotating shaft. A reversing motor (701) is fixed on the left side of the reversing plate (702), and the reversing motor (701) is rotatably connected to the cleaning rod (7) via a rotating shaft. A cleaning motor (703) is fixed on the rear end of the cleaning rod (7), and the cleaning motor (703) is rotatably connected to the cleaning plate (704) at its rear end via a rotating shaft.

5. The device for separating coal from water during coal transportation according to claim 4, characterized in that: A camera (604) is also fixed to the rear end of the cleaning plate (704), a water pipe (602) is fixed to the top of the high-pressure nozzle (603), a solenoid valve (601) is fixed to the other end of the water pipe (602), a water pump (6) is fixed to the left side of the solenoid valve (601), and the left side of the water pump (6) is fixedly connected to the water tank (5) through a pipeline, a water level sensor (503) is also fixed to the top of the water tank (5), and an antenna (506) is fixed to the right end of the water level sensor (503), a filter plate (507) is slidably connected to the inside of the filter tube (505), a handle (508) is fixed to the top of the filter plate (507), a support ring (509) is slidably connected to the bottom of the filter plate (507), the support ring (509) is fixedly connected to the filter tube (505), and a water flow sensor (504) is provided at the bottom of the support ring (509) and fixedly connected to the filter tube (505).

Images