Magnetic flocculation microfiltration wastewater defluorination device capable of dynamically putting magnetic seeds

Abstract

The invention relates to the field of sewage treatment, in particular to a magnetic flocculation microfiltration wastewater defluorination device capable of dynamically putting magnetic seeds, the magnetic flocculation microfiltration wastewater defluorination device capable of dynamically putting magnetic seeds comprises a tank body, a water inlet pipe, a water outlet pipe and a putting device, the tank body is fixed on a working surface, and the water inlet pipe and the water outlet pipe are both fixedly connected with the tank body; the putting device is fixedly connected with the pool body and is used for putting magnetic seeds into the pool body; an impeller and an output shaft are arranged in the water inlet pipe, the impeller is rotationally connected with the water inlet pipe, waste water flowing through the water inlet pipe drives the impeller to rotate, the impeller is fixedly connected with the output shaft, the impeller drives the output shaft to rotate, and a linkage device is arranged between the output shaft and the throwing device and used for controlling the throwing speed of the throwing device. The effect of dynamically adjusting the magnetic seed feeding to improve the magnetic flocculation effect is achieved.

Description

Technical Field

[0001] The present application relates to the field of sewage treatment, and in particular to a magnetic flocculation microfiltration wastewater defluorination device with dynamic introduction of magnetic seeds. Background Art

[0002] At present, in the process of industrial production, many industries such as iron smelting, phosphate rock processing, phosphate fertilizer production, and coal combustion contain a large amount of fluoride ions in their emissions, and the industrial wastewater they produce also contains fluorine. Therefore, the wastewater produced must be treated with fluorine removal before it can be discharged to avoid the fluoride ions in the wastewater from polluting natural water bodies.

[0003] The existing treatment of fluoride ions often uses magnetic flocculation microfiltration equipment, which is a water treatment equipment that combines magnetic flocculation and microfiltration technology, and is mainly used to remove suspended matter, colloids, organic matter and some microorganisms in water. The magnetic flocculation microfiltration equipment includes a magnetic seed placement tank, a microfiltration tank and a magnetic separation system. The magnetic seed placement tank is used to place magnetic seeds and mix and stir, the microfiltration tank is used to filter the magnetic seed floccules, and the magnetic separation system is used to separate the impurities filtered by the microfiltration tank. The separated magnetic seeds are re-placed in the magnetic seed placement tank, so that the magnetic seeds can be reused.

[0004] The above-mentioned prior art solutions have the following defects: the flow rate of wastewater entering the magnetic seed placement pool varies with the production speed. The existing magnetic seeds are basically placed in a quantitative manner. In order to avoid the cost increase caused by excessive placement of magnetic seeds, the magnetic seeds are generally placed according to lower standards, resulting in insufficient magnetic seeds and reduced magnetic flocculation effect. Summary of the invention

[0005] In order to dynamically adjust the magnetic seed placement to improve the magnetic flocculation effect, the present application provides a magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement.

[0006] The above technical objectives of this application are achieved through the following technical solutions: A magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement includes a tank body, a water inlet pipe, a water outlet pipe and a placement device, wherein the tank body is fixed on a working surface, the water inlet pipe and the water outlet pipe are both fixedly connected to the tank body, the placement device is fixedly connected to the tank body, and the placement device is used to place magnetic seeds into the tank body; An impeller and an output shaft are arranged in the water inlet pipe, the impeller is rotatably connected to the water inlet pipe, the wastewater flowing through the water inlet pipe drives the impeller to rotate, the impeller is fixedly connected to the output shaft, the impeller drives the output shaft to rotate, a linkage device is arranged between the output shaft and the delivery device, and the linkage device is used to control the delivery speed of the delivery device.

[0007] Furthermore, the delivery device includes an upper hopper, a conveying cylinder, an auger and a delivery pipe. The conveying cylinder is fixedly connected to the pool body, the auger is rotatably arranged in the conveying cylinder, the upper hopper is fixedly connected to the conveying cylinder, one end of the delivery pipe is fixedly connected to the conveying cylinder, and the other end is fixedly connected to the pool body. The conveying cylinder is connected to the pool body through the delivery pipe. The auger is used to transport the magnetic seeds in the upper hopper to the delivery pipe. The central axis of the auger is connected to a linkage device, and the linkage device is used to control the rotation speed of the central axis.

[0008] Furthermore, the linkage device includes a driving wheel, a driven wheel and a belt, the driving wheel is fixedly connected to the output shaft, the driven wheel is fixedly connected to the central shaft, the belt is sleeved between the driving wheel and the driven wheel, and the driving wheel drives the driven wheel to rotate through the belt.

[0009] Furthermore, the output shaft is also connected to a stirring device, which includes a stirring shaft and a stirring rod. The stirring shaft is vertically arranged in the pool body, and there are several stirring rods, each of which is connected to the stirring shaft. A transmission device is arranged between the stirring shaft and the output shaft.

[0010] Furthermore, the transmission device includes a transmission box, a transmission gear group and a fixed rod. The transmission box is arranged in the pool body. A plurality of fixed rods are arranged. Both ends of the fixed rod are fixedly connected to the pool body and the transmission box respectively. The transmission gear group is arranged in the transmission box. The transmission gear group includes a first bevel gear and a second bevel gear. One end of the output shaft passes through the side wall of the transmission box and is fixedly connected to the first bevel gear. One end of the stirring shaft passes through the side wall of the transmission box and is fixedly connected to the second bevel gear. The first bevel gear and the second bevel gear are meshed. The first bevel gear drives the second bevel gear to rotate. The output shaft and the stirring shaft are both rotationally connected to the transmission box.

[0011] Furthermore, the stirring shaft includes an inner rod and a rotating sleeve, one end of the inner rod is fixedly connected to the pool body, and the other end is fixedly connected to the transmission box, the rotating sleeve is arranged on the outside of the inner rod, the rotating sleeve is rotatably connected to the inner rod, the rotating sleeve is fixedly connected to the second bevel gear, one end of the stirring rod passes through the rotating sleeve and a follower gear set is arranged between the inner rod, the stirring rod is rotatably connected to the rotating sleeve, and the follower gear set is used to drive the stirring rod to rotate around its own axis when the rotating sleeve rotates.

[0012] Furthermore, the follower gear set includes a third bevel gear and a fourth bevel gear, the third bevel gear is fixedly connected to the inner rod, the fourth bevel gear is fixedly connected to the stirring rod, and the third bevel gear and the fourth bevel gear are meshed.

[0013] Furthermore, a distribution cone is provided at the top of the transmission box, and the distribution cone is used to evenly distribute the magnetic seeds released by the release device around the stirring shaft.

[0014] Furthermore, a plurality of stirring blocks are fixedly connected to the stirring rod, and the stirring blocks are fixedly connected to the stirring rod.

[0015] Furthermore, a supporting device is arranged between the transmission box and the water inlet pipe, and the supporting device includes a supporting frame and a supporting rod. The supporting frame is sleeved on the outside of the output shaft, and the output shaft is rotatably connected to the supporting frame. A plurality of supporting rods are arranged, and both ends of the supporting rods are fixedly connected to the supporting frame and the pool body respectively.

[0016] In summary, this application has the following technical effects: 1. By setting up a linkage device, the output shaft and the delivery device are connected by the linkage device, so that the speed of the water flow is related to the delivery speed of the magnetic seed, so as to achieve the purpose of dynamically adjusting the delivery of the magnetic seed and improving the magnetic flocculation effect; 2. By setting up a transmission device and a stirring device, the output shaft is connected to the stirring device by using the transmission device, so that the rotation speed of the output shaft is related to the stirring speed of the stirring device, thereby improving the stirring effect of the magnetic seed; 3. By setting up a follower gear set, the stirring shaft drives the stirring rod to rotate when it rotates, thereby achieving more complete stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement in the present application; Figure 2 It is a schematic diagram of the structure of the wastewater defluorination device of the present application after opening; Figure 3 yes Figure 2 A partial enlarged view of part A; Figure 4 It is a schematic diagram showing the structure of the transmission device and the follower gear set.

[0018] In the figure, 1, pool body; 2, water inlet pipe; 3, water outlet pipe; 4, delivery device; 41, upper hopper; 42, conveying cylinder; 43, auger; 431, central axis; 44, delivery pipe; 5, impeller; 6, output shaft; 7, linkage device; 71, driving wheel; 72, driven wheel; 73, belt; 8, stirring device; 81, stirring shaft; 811, inner rod; 812, rotating sleeve; 82, stirring rod; 83, stirring block; 9, transmission device; 91, transmission box; 911, material distribution cone; 92, transmission gear set; 921, first bevel gear; 922, second bevel gear; 93, fixed rod; 10, follower gear set; 101, third bevel gear; 102, fourth bevel gear; 20, supporting device; 201, supporting frame; 202, supporting rod; 30, partition. DETAILED DESCRIPTION

[0019] The present application is further described in detail below in conjunction with the accompanying drawings.

[0020] Reference Figure 1 and Figure 2The present embodiment provides a magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed delivery, the magnetic flocculation microfiltration wastewater defluorination device comprises a tank body 1, an inlet pipe 2, an outlet pipe 3 and a delivery device 4, the tank body 1 is fixed on a working surface, the inlet pipe 2 and the outlet pipe 3 are both fixedly connected to the tank body 1, the delivery device 4 is fixedly connected to the tank body 1, the delivery device 4 is used to deliver magnetic seeds into the tank body 1, a partition 30 is provided between the inlet pipe 2 and the outlet pipe 3, the partition 30 is fixedly connected to the tank body 1, the partition 30 is fixedly connected to the top wall of the tank body 1, a flow channel is provided between the partition 30 and the bottom wall of the tank body 1, the flow channel is used to flow the liquid after mixing the magnetic seeds and stirring evenly to the outlet pipe 3, so as to prevent the wastewater in the inlet pipe 2 from flowing into the outlet pipe 3 without being evenly mixed with the magnetic seeds.

[0021] Reference Figure 2 and Figure 3 The delivery device 4 includes an upper hopper 41, a conveying cylinder 42, an auger 43 and a delivery pipe 44. The conveying cylinder 42 is fixedly connected to the pool body 1, and the auger 43 is rotatably arranged in the conveying cylinder 42. The upper hopper 41 is fixedly connected to the conveying cylinder 42. One end of the delivery pipe 44 is fixedly connected to the conveying cylinder 42, and the other end is fixedly connected to the pool body 1. The conveying cylinder 42 is connected to the pool body 1 through the delivery pipe 44. The upper hopper 41 is located above the conveying cylinder 42, and the delivery pipe 44 is located below the conveying cylinder 42. The upper hopper 41 and the delivery pipe 44 are respectively located at two ends of the conveying cylinder 42. The auger 43 is used to deliver the magnetic seeds in the upper hopper 41 to the delivery pipe 44. The auger 43 is provided with a central axis 431, and the central axis 431 passes through the side wall of the conveying cylinder 42 at one end close to the upper hopper 41.

[0022] Reference Figure 2 and Figure 3 An impeller 5 and an output shaft 6 are provided in the water inlet pipe 2, the impeller 5 is rotatably connected to the water inlet pipe 2, and the wastewater flowing through the water inlet pipe 2 drives the impeller 5 to rotate. In this embodiment, in order to increase the rotation speed of the impeller 5, the wastewater in the water inlet pipe 2 can be pressurized and transported by a pressure pump, the impeller 5 is fixedly connected to the output shaft 6, the impeller 5 drives the output shaft 6 to rotate, a linkage device 7 is provided between the output shaft 6 and the delivery device 4, the linkage device 7 is used to control the delivery speed of the delivery device 4, the central axis 431 of the auger 43 passes through one end of the side wall of the conveying cylinder 42 and is connected to the linkage device 7, the linkage device 7 is used to control the rotation speed of the central axis 431; the linkage device 7 includes a driving wheel 71, a driven wheel 72 and a belt 73, the driving wheel 71 is fixedly connected to the output shaft 6, the driven wheel 72 is fixedly connected to the central axis 431, the belt 73 is sleeved between the driving wheel 71 and the driven wheel 72, and the driving wheel 71 drives the driven wheel 72 to rotate through the belt 73.

[0023] Reference Figure 2 and Figure 4The output shaft 6 is also connected to a stirring device 8, which includes a stirring shaft 81, a stirring rod 82 and a stirring block 83. The stirring shaft 81 is vertically arranged in the pool body 1, and a plurality of stirring rods 82 are arranged, each stirring rod 82 is connected to the stirring shaft 81, and a plurality of stirring blocks 83 are arranged on each stirring rod 82, and each stirring block 83 is fixedly connected to the stirring rod 82. A transmission device 9 is arranged between the stirring shaft 81 and the output shaft 6; the transmission device 9 includes a transmission box 91, a transmission gear set 92 and a fixed rod 93, the transmission box 91 is arranged in the pool body 1, and the fixed rod 93 is provided with a plurality of The two ends of the fixing rod 93 are fixedly connected to the pool body 1 and the transmission box 91 respectively; the transmission gear set 92 is arranged in the transmission box 91, and the transmission gear set 92 includes a first bevel gear 921 and a second bevel gear 922. One end of the output shaft 6 passes through the side wall of the transmission box 91 and is fixedly connected to the first bevel gear 921, and one end of the stirring shaft 81 passes through the side wall of the transmission box 91 and is fixedly connected to the second bevel gear 922. The first bevel gear 921 and the second bevel gear 922 are meshed, and the first bevel gear 921 drives the second bevel gear 922 to rotate, and the output shaft 6 and the stirring shaft 81 are both rotationally connected to the transmission box 91.

[0024] Reference Figure 2 and Figure 4 In this embodiment, in order to more evenly transport the magnetic seeds into the liquid of the pool body 1, the delivery pipe 44 is arranged at a central position between the partition 30 and the water inlet pipe 2. The stirring shaft 81 is coaxially arranged with the delivery pipe 44 for more even stirring. Therefore, the transmission box 91 is located directly below the delivery pipe 44 for better transmission. Therefore, in this embodiment, a distribution cone 911 is arranged at the top of the transmission box 91. The distribution cone 911 is conical, and the tip of the distribution cone 911 is facing upward to the discharge port of the delivery pipe 44. The distribution cone 911 is used to evenly distribute the magnetic seeds delivered by the delivery device 4 around the stirring shaft 81. After the magnetic seeds enter the pool body 1 through the delivery pipe 44, the beam of the magnetic seeds abuts against the distribution cone 911 and is evenly dispersed into an umbrella-shaped spreading surface, so that the magnetic seeds can be evenly distributed over a larger area when adding materials, so that the magnetic seeds and the wastewater can be more easily mixed evenly.

[0025] Reference Figure 4The stirring shaft 81 includes an inner rod 811 and a rotating sleeve 812, one end of the inner rod 811 is fixedly connected to the pool body 1, and the other end is fixedly connected to the transmission box 91, the rotating sleeve 812 is sleeved on the outer side of the inner rod 811, the rotating sleeve 812 is rotatably connected to the inner rod 811, and the rotating sleeve 812 is fixedly connected to the second bevel gear 922, one end of the stirring rod 82 passes through the rotating sleeve 812 and the inner rod 811 and is provided with a follower gear set 10, the stirring rod 82 is rotatably connected to the rotating sleeve 812, a follower cavity is opened on the rotating sleeve 812, and the follower gear set 10 is located in the follower cavity, and the follower gear set 10 is used to drive the stirring rod 82 to rotate around its own axis when the rotating sleeve 812 rotates; the follower gear set 10 includes a third bevel gear 101 and a fourth bevel gear 102, the third bevel gear 101 is fixedly connected to the inner rod 811, the fourth bevel gear 102 is fixedly connected to the stirring rod 82, and the third bevel gear 101 and the fourth bevel gear 102 are meshed.

[0026] Reference Figure 3 A supporting device 20 is arranged between the transmission box 91 and the water inlet pipe 2, and the supporting device 20 includes a supporting frame 201 and a supporting rod 202. The supporting frame 201 is sleeved on the outer side of the output shaft 6, and the output shaft 6 is rotatably connected to the supporting frame 201. A plurality of supporting rods 202 are arranged, and both ends of the supporting rod 202 are fixedly connected to the supporting frame 201 and the pool body 1 respectively.

[0027] The implementation principle of the magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed delivery in the embodiment of the present application is as follows: when using the device, first put the magnetic seeds into the upper hopper 41, and then inject high-pressure water flow into the pool body 1 through the water inlet pipe 2. The water flow encounters the impeller 5 to drive the output shaft 6 to rotate, and the output shaft 6 drives the driving wheel 71 to rotate. The driving wheel 71 rotates to drive the driven wheel 72 to rotate through the belt 73. The driven wheel 72 rotates to drive the central axis 431 of the auger 43 to rotate. The central axis 431 drives the auger 43 to rotate, thereby conveying the magnetic seeds at the position of the upper hopper 41 in the conveying cylinder 42 to the delivery pipe 44. The magnetic seeds fall into the pool body 1 through the delivery pipe 44. After the magnetic seed beam abuts against the distribution cone 911, the magnetic seed beam collides with the distribution cone 911 to disperse the magnetic seeds into an umbrella shape. The first bevel gear 921 is driven to rotate when the output shaft 6 rotates, and the first bevel gear 921 drives the second bevel gear 922 to rotate, and the second bevel gear 922 drives the rotating sleeve 812 to rotate. When the rotating sleeve 812 rotates, it rotates relative to the inner rod 811. At this time, through the meshing of the third bevel gear 101 and the fourth bevel gear 102, the rotating sleeve 812 pushes the stirring rod 82 to rotate around its own axis, and the stirring rod 82 rotates to drive the stirring block 83 to rotate, so that the stirring block 83 and the stirring rod 82 simultaneously stir the magnetic seed and the wastewater uniformly, so that the uniformly stirred water flows through the channel between the partition 30 and the bottom wall of the pool body 1 to the outlet pipe 3, and finally outputs to the sedimentation tank for subsequent electromagnetic precipitation through the outlet pipe 3. In summary, by setting the linkage device 7 and the transmission device 9, the water flow velocity is related to the delivery speed and stirring speed of the magnetic seed, so as to achieve the purpose of dynamically adjusting the delivery of the magnetic seed to improve the magnetic flocculation effect.

[0028] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement, characterized in that: The invention comprises a pool body (1), a water inlet pipe (2), a water outlet pipe (3) and a delivery device (4), wherein the pool body (1) is fixed on a working surface, the water inlet pipe (2) and the water outlet pipe (3) are both fixedly connected to the pool body (1), and the delivery device (4) is fixedly connected to the pool body (1), and the delivery device (4) is used to deliver magnetic seeds into the pool body (1); An impeller (5) and an output shaft (6) are arranged in the water inlet pipe (2); the impeller (5) is rotatably connected to the water inlet pipe (2); wastewater flowing through the water inlet pipe (2) drives the impeller (5) to rotate; the impeller (5) is fixedly connected to the output shaft (6); the impeller (5) drives the output shaft (6) to rotate; a linkage device (7) is arranged between the output shaft (6) and the delivery device (4); the linkage device (7) is used to control the delivery speed of the delivery device (4).

2. The magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement according to claim 1 is characterized by: The delivery device (4) comprises an upper hopper (41), a conveying cylinder (42), an auger (43) and a delivery pipe (44); the conveying cylinder (42) is fixedly connected to the tank body (1); the auger (43) is rotatably arranged in the conveying cylinder (42); the upper hopper (41) is fixedly connected to the conveying cylinder (42); one end of the delivery pipe (44) is fixedly connected to the conveying cylinder (42) and the other end is fixedly connected to the tank body (1); the conveying cylinder (42) is connected to the tank body (1) through the delivery pipe (44); the auger (43) is used to deliver the magnetic seeds in the upper hopper (41) to the delivery pipe (44); the central axis (431) of the auger (43) is connected to a linkage device (7); and the linkage device (7) is used to control the rotation speed of the central axis (431).

3. The magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement according to claim 2 is characterized by: The linkage device (7) comprises a driving wheel (71), a driven wheel (72) and a belt (73); the driving wheel (71) is fixedly connected to the output shaft (6); the driven wheel (72) is fixedly connected to the central shaft (431); the belt (73) is sleeved between the driving wheel (71) and the driven wheel (72); the driving wheel (71) drives the driven wheel (72) to rotate via the belt (73).

4. The magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement according to claim 1 is characterized by: The output shaft (6) is also connected to a stirring device (8), the stirring device (8) comprising a stirring shaft (81) and a stirring rod (82), the stirring shaft (81) being vertically arranged in the tank body (1), a plurality of stirring rods (82) being arranged, each stirring rod (82) being connected to the stirring shaft (81), and a transmission device (9) being arranged between the stirring shaft (81) and the output shaft (6).

5. The magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement according to claim 4 is characterized by: The transmission device (9) comprises a transmission box (91), a transmission gear set (92) and a fixed rod (93); the transmission box (91) is arranged in the tank body (1); a plurality of fixed rods (93) are arranged; two ends of the fixed rods (93) are respectively fixedly connected to the tank body (1) and the transmission box (91); the transmission gear set (92) is arranged in the transmission box (91); the transmission gear set (92) comprises a first bevel gear (921) and a second bevel gear (922); one end of the output shaft (6) passes through the side wall of the transmission box (91) and is fixedly connected to the first bevel gear (921); one end of the stirring shaft (81) passes through the side wall of the transmission box (91) and is fixedly connected to the second bevel gear (922); the first bevel gear (921) and the second bevel gear (922) are meshed; the first bevel gear (921) drives the second bevel gear (922) to rotate; and the output shaft (6) and the stirring shaft (81) are both rotationally connected to the transmission box (91).

6. The magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement according to claim 5 is characterized by: The stirring shaft (81) comprises an inner rod (811) and a rotating sleeve (812); one end of the inner rod (811) is fixedly connected to the tank body (1), and the other end is fixedly connected to the transmission box (91); the rotating sleeve (812) is sleeved on the outer side of the inner rod (811); the rotating sleeve (812) is rotationally connected to the inner rod (811); the rotating sleeve (812) is fixedly connected to the second bevel gear (922); one end of the stirring rod (82) passes through a follower gear set (10) disposed between the rotating sleeve (812) and the inner rod (811); the stirring rod (82) is rotationally connected to the rotating sleeve (812); the follower gear set (10) is used to drive the stirring rod (82) to rotate around its own axis when the rotating sleeve (812) rotates.

7. The magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement according to claim 6 is characterized by: The follower gear set (10) comprises a third bevel gear (101) and a fourth bevel gear (102); the third bevel gear (101) is fixedly connected to the inner rod (811); the fourth bevel gear (102) is fixedly connected to the stirring rod (82); and the third bevel gear (101) and the fourth bevel gear (102) are meshed.

8. The magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement according to claim 5 is characterized by: A distribution cone (911) is provided at the top end of the transmission box (91), and the distribution cone (911) is used to evenly distribute the magnetic seeds delivered by the delivery device (4) around the stirring shaft (81).

9. The magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement according to claim 5 is characterized by: A plurality of stirring blocks (83) are fixedly connected to the stirring rod (82), and the stirring blocks (83) are fixedly connected to the stirring rod (82).

10. The magnetic flocculation microfiltration wastewater defluorination device with dynamic magnetic seed placement according to claim 5, characterized in that: A support device (20) is provided between the transmission box (91) and the water inlet pipe (2), the support device (20) comprising a support frame (201) and a support rod (202), the support frame (201) being sleeved on the outside of the output shaft (6), the output shaft (6) being rotatably connected to the support frame (201), a plurality of support rods (202) being provided, and two ends of the support rod (202) being fixedly connected to the support frame (201) and the pool body (1) respectively.

Images