A gate for preventing sand from flowing on a filter tank

Abstract

The present invention relates to the technical field of filter tank gates, specifically a gate for preventing sand on a filter tank, comprising a base, a first gate, a second gate, a gate driving mechanism, a filter assembly, and a side plate. Two first gates are arranged above the base, and the two first gates are arranged in parallel on two opposite sides of the base. The second gate is arranged above the base and between the two first gates, and is arranged perpendicular to the two first gates. The gate driving mechanism is arranged on the first gate and the second gate to drive the gates to open and close. The filter assembly is arranged above the base and is located on the inner side of the first gate on one side and is arranged parallel to the first gate. One side of the second gate contacts the first gate on one side, and the other side of the second gate contacts the filter assembly. The side plate is arranged on the side of the base where no gate is installed. The present invention can effectively filter sediment and remove the deposited sediment out of the gate under the premise of controlling the opening and closing of the gate.

Description

Technical Field

[0001] The invention relates to the technical field of filter tank gates, in particular to a gate for preventing sand from forming on a filter tank. Background Art

[0002] Filters are used for filtering purposes. Some are used to remove suspended solids in water to obtain water with lower turbidity; some are used to remove water from sludge to obtain sludge with lower water content. There are many types of filters, which can be divided into fast filters and slow filters according to the filtration speed. However, whether it is a fast filter or a slow filter, it is possible that small particles of impurities such as silt will still be deposited in the water after filtration. Therefore, it becomes an urgent problem to separate silt and other impurities from water at the outlet of the filter. Summary of the invention

[0003] The object of the present invention is to provide a gate for preventing sand from flowing on a filter tank, so as to solve the problems mentioned in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a gate for preventing sand on a filter tank, comprising a base, a first gate, a second gate, a gate driving mechanism, a filter assembly, and a side plate, wherein two first gates are arranged above the base, and the two first gates are arranged in parallel on opposite sides of the base, the second gate is arranged above the base and between the two first gates, and is arranged perpendicular to the two first gates, the gate driving mechanism is arranged on the first gate and the second gate to drive the gates to open and close, the filter assembly is arranged above the base and is located on the inner side of the first gate on one side and is arranged parallel to it, one side of the second gate is in contact with the first gate on one side, and the other side of the second gate is in contact with the filter assembly, and the side plate is arranged on the side of the base where no gate is installed.

[0005] Furthermore, the base also includes a first side plate, a second side plate, a slope, and a triangular side plate, wherein the first side plate is arranged on the water outlet side of the gate, the second side plate is arranged on the water inlet side of the gate, a first gate and a filter assembly are arranged on the first side plate, a first gate is arranged on the second side plate, and both sides of the lower end of the second gate are arranged on the slope, the thickness of the first side plate is greater than that of the second side plate, the long sides of the first side plate, the second side plate, and the bottom surface of the slope are the same, a triangular side plate is arranged on the inner side of the first side plate and the second side plate, and one side of the triangular side plate is arranged on the outer side of the first side plate One inner side is fixedly connected, the front end plane is fixedly connected to the second gate, the outer side of the other triangular side plate is fixedly connected to the inner side of the second side plate, the front end plane is fixedly connected to the second gate, and a limiting groove is arranged on the inner side of each of the two triangular side plates, and the limiting groove is parallel to the bottom side of the triangular side plate as a whole, and the inner side thereof, that is, the height of the inner side of the triangular side plate where it is located, is lower than the height of the outer side, that is, from the cross-section, the limiting groove is an inclination angle with a low inner side and a high outer side, and the slope cross-section is a right-angled trapezoid, the upper surface of the slope is narrower than the lower surface, and the upper surface of the slope is provided with a side plate.

[0006] Further, the first gate also includes a first gate frame and a first gate plate, wherein the first gate frame is a frame body including four surfaces: upper, lower, left and right, the lower end of the first gate frame is arranged on the first side plate, and the first gate plate is slidably connected to the inner side of the first gate frame, the first gate frame also includes a first gate slide, a first gate slide anti-sand groove, a lower water retaining plate, and a through hole on the first gate frame, wherein the first gate slide is arranged in the middle of the inner side of both sides of the first gate frame, and the first gate slide is arranged at the lower end of the first gate slide. The first gate slide anti-sand groove is a slope, and a lower water retaining plate is arranged in the middle of the inner side of the lower end of the first gate frame, and the left and right ends of the lower water retaining plate are respectively connected to the lower end of a first gate slide sand groove, and the lower water retaining plate is a rectangular parallelepiped as a whole, and the height of the lower water retaining plate is higher than the outer height of the lower end of the first gate frame, and the middle of the upper end of the first gate frame is provided with A through hole on the first gate frame, the first gate door panel also includes a first gate slider, a first gate slider cut angle, a first gate lower groove, and a first gate channel, wherein the first gate slider is arranged in the middle of both sides of the first gate door panel, the first gate door panel is slidably connected with the first gate door frame through the cooperation of the first gate slider and the first gate slide groove, the first gate slider cut angle is arranged at the lower end of the first gate slider, when the first gate is closed, the first gate slider cut angle cooperates with the first gate slide groove anti-sand groove, the first gate lower groove is arranged inwardly at the lower end of the first gate door panel, when the first gate is closed, the first gate lower groove cooperates with the lower water retaining plate, the first gate channel is arranged inside the first gate door panel, the first gate channel is a vertical cylindrical channel, the upper end opening of the first gate channel is located in the middle of the upper end of the first gate door panel, and the lower end of the first gate channel is located in the middle and lower part of the first gate door panel.

[0007] Further, the second gate also includes a second gate frame and a second gate plate, wherein the second gate frame is a frame body including three surfaces, namely, an upper surface, a left surface and a right surface, the front end of the second gate frame is flush with the first side plate and one side of the second side plate, the lower ends of the left and right sides of the second gate frame are arranged on a slope and fixedly connected thereto, the second gate frame is connected to the front plane of the triangular side plate and fixedly connected thereto, and the inner thickness of the second gate frame is the same as the thickness of the triangular side plate, the outer side of the lower part of the second gate frame is respectively in contact with the first side plate and the second side plate and fixedly connected thereto, a second gate plate is arranged on the inner side of the second gate frame, and the second gate frame also includes a second gate frame upper through hole, wherein the frame bodies on the left and right sides of the second gate frame, the side close to the inside of the gate is shorter than the side away from the inside of the gate, and the second gate frame upper through hole is arranged in the middle of the upper end of the second gate frame.

[0008] Furthermore, the second gate door panel also includes a second gate upper door panel, an upper door panel rotating seat, an upper door panel slot, a second gate lower door panel, a lower door panel rotating seat, a lower door panel slot, and a rubber pad, wherein the second gate door panel is arranged on the inner side of the second gate door frame, and the second gate door panel is divided into two parts, the second gate upper door panel is fixed on the second gate door frame, the second gate lower door panel is rotatably connected to the second gate upper door panel, and an upper door panel rotating seat is arranged at the lower end of the middle part of the second gate upper door panel, which protrudes from the second gate upper door panel, and when the second gate is closed, there is a certain distance between the lower end of the front part and the second gate lower door panel in a vertical position, and the rear part of the lower end is in close contact with the second gate lower door panel, the rear part of the upper door panel rotating seat is horizontally lower than the front part, and the rear part of the upper door panel rotating seat is overall in an arc shape to transition to the upper door panel rotating seat The flat bottom surface of the lower part, the inner side of the lower end of the upper door plate of the second gate, that is, the side close to the inside of the gate, is overall arc-shaped to the middle part of the lower end of the upper door plate of the second gate, and then extends straight forward from the middle part of the lower end to the outer side of the upper door plate of the second gate, an upper door plate slot is arranged inside the upper door plate of the second gate, the lower door plate of the second gate is arranged at the lower end of the upper door plate of the second gate, two lower door plate rotating seats are arranged at the upper end of the lower door plate of the second gate, the lower door plate rotating seats protrude from the lower door plate of the second gate, the lower door plate rotating seats are semi-cylindrical, and the lower door plate slot is arranged inside the lower door plate rotating seats, the upper door plate of the second gate and the lower door plate of the second gate are rotatably connected through the mutual cooperation of the upper door plate rotating seats and the lower door plate rotating seats, and a rubber pad is arranged at the lower end of the lower door plate of the second gate, and the cross-section of the rubber pad is triangular, which matches the inclination angle of the slope.

[0009] Furthermore, the gate driving mechanism also includes a trapezoidal lead screw, a nut, a bearing, and a manual driving wheel, wherein the manual driving wheel is arranged above the through holes on the first gate door frame and the through holes on the second gate door frame, the bearing is arranged inside the through holes on the first gate door frame and the through holes on the second gate door frame, the bearing is fixedly connected to the manual driving wheel, the trapezoidal lead screw is fixedly connected to the bearing inside the through holes on the first gate door frame, and its lower end is arranged inside the first gate channel, the nuts are respectively arranged inside the first gate channel, and are located at the upper end of the first gate channel, and are fixedly connected to the inner wall of the first gate channel, and the nut is threadedly connected to the trapezoidal lead screw.

[0010] Furthermore, the gate driving mechanism also includes a first transmission shaft, a second transmission shaft, a transmission shaft bearing, a first bevel gear, a second bevel gear, and a transmission wheel, wherein the upper portion of the upper door panel slot is cylindrical, extending downward from the center position of the upper end of the upper door panel of the second gate, and extending to the upper door panel rotating seat and then transforming into a square space, and the upper door panel rotating seat is hollowed out as a whole to form a cavity therein, the lower door panel slot is located at the upper ends of the left and right sides of the lower door panel of the second gate, the lower door panel slot is disc-shaped at the upper ends of the right sides of the lower door panel of the second gate, and extends respectively to the inside of the lower door panel rotating seat where it is located, penetrating the two lower door panel rotating seats, and is cylindrical inside the lower door panel rotating seat, and the first transmission shaft is fixedly connected to the bearing inside the through hole in the door frame of the second gate The first bevel gear and the second bevel gear are meshed with each other, and a transmission wheel is fixedly connected to the second transmission shaft. The transmission wheel is arranged in the groove of the lower door panel, that is, in the disc-shaped grooves at the upper ends of the left and right sides of the lower door panel of the second gate, and the transmission wheel is fixedly connected to the lower door panel of the second gate, and both ends of the second transmission shaft protrude from the lower door panel of the second gate, and are fixedly connected with transmission shaft bearings, and the transmission shaft bearings are arranged in the second gate door frame corresponding to the horizontal position of the second transmission shaft.

[0011] Furthermore, the filter assembly also includes a filter limiting frame, a filter limiting groove, a filter frame, and a filter, wherein the filter limiting frame is arranged on the first side plate and on the inner side of the first gate, filter limiting grooves are arranged on the inner middle part of both sides of the filter limiting frame, and a filter frame is arranged on the outer side of the filter, and the filter frame cooperates with the filter limiting groove to install the filter on the filter limiting frame.

[0012] Furthermore, the base also includes a sand pusher, a first pin seat, a connecting rod, a second pin seat, a pin shaft, and a limiting wheel, wherein the vertical cross-section of the sand pusher is an obtuse triangle, and the angle formed by the upper surface of the sand pusher and the first side plate is smaller than the angle formed by the slope surface and the first side plate, the sand pusher is arranged between the two triangular side plates, and the width is the distance between the two triangular side plates, and a limiting wheel is respectively arranged on both sides of the front end of the sand pusher, the limiting wheel is arranged inside the limiting groove and is slidably connected, and matches the shape of the limiting groove so that the limiting wheel can move in the limiting groove, and second pin seats are arranged at both ends of the connecting rod, the front end of the sand pusher is a plane perpendicular to the bottom surface of the gate, on which the first pin seat is arranged, and the first pin seat is arranged on the upper inner side of the lower door plate of the second gate, the first pin seat arranged on the sand pusher and the first pin seat arranged on the lower door plate of the second gate are respectively rotatably connected to the second pin seats arranged at both ends of the connecting rod through the pin shaft, and when the sand pusher is at the highest position on the slope, the position of the connecting rod is perpendicular to the door plate of the second gate.

[0013] Compared with the prior art, the present invention has the following advantages: (1) The present invention can filter and clean up sediment in a relatively small volume.

[0014] (2) The structure of the present invention is reliable and can greatly extend the service life of the gate.

[0015] (3) The present invention can be driven manually or electrically, and the choice can be made according to different conditions.

[0016] (4) The present invention can automatically push sand while opening the second gate to complete the process of clearing sediment. When the second gate is closed, the sand pusher automatically returns to its original position, which is simple to operate and easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a gate on a filter tank that acts as a sand prevention device.

[0018] Figure 2 A schematic diagram of an exploded view of a gate on a filter tank that functions to prevent sand.

[0019] Figure 3 Schematic diagram of the base disassembly.

[0020] Figure 4 Schematic diagram of the first gate.

[0021] Figure 5 Schematic diagram of the first gate.

[0022] Figure 6 Partial schematic diagram of the first gate panel.

[0023] Figure 7 Partial schematic diagram of the first gate frame.

[0024] Figure 8 Schematic diagram of the second gate.

[0025] Fig. 9 Schematic diagram of the second gate plate.

[0026] Fig.10 Schematic diagram of the interior perspective of the second gate panel.

[0027] Fig.11 Schematic diagram of the filter assembly exploded view.

[0028] Fig.12 Schematic diagram of connecting rod connection.

[0029] in, 1. Base, 11. First side plate, 12. Second side plate, 13. Slope, 131. Triangular side plate, 1311. Limiting groove, 14. Sand pusher, 142. First pin seat, 143. Connecting rod, 1431. Second pin seat, 144. Pin shaft, 145. Limiting wheel, 2. First gate, 21. First gate door frame, 211. First gate slide, 2111. First gate slide sand prevention groove, 212. Lower water retaining plate, 213. Upper through hole of first gate door frame, 22. First gate door plate, 221. First gate slider, 2211. First gate slider cut corner, 222. Lower groove of first gate, 223. First gate channel, 3. Second gate, 31. Second gate door frame, 311. First Through hole on the door frame of the second gate, 32. The second gate panel, 321. The upper door panel of the second gate, 3211. The upper door panel rotating seat, 3212. The upper door panel slot, 322. The second gate lower door panel, 3221. The lower door panel rotating seat, 3222. The lower door panel slot, 3223. Rubber pad, 4. Gate driving mechanism, 41. Trapezoidal screw, 42. Nut, 43. Bearing, 44. Manual driving wheel, 451. The first transmission shaft, 452. The second transmission shaft, 4521. The transmission shaft bearing, 453. The first bevel gear, 454. The second bevel gear, 455. The transmission wheel, 5. The filter assembly, 51. The filter limit frame, 511. The filter limit slot, 52. The filter frame, 53. The filter, 6. The side plate. DETAILED DESCRIPTION

[0030] The present invention aims to address the deficiencies of existing storage tank technology and provide a gate for preventing sand from forming on a filter tank, which is specifically implemented by the following technical solutions: Reference Figure 1 , Figure 2The present embodiment provides a gate for preventing sand from flowing through a filter tank, comprising a base 1, a first gate 2, a second gate 3, a gate driving mechanism 4, a filter assembly 5, and a side plate 6, wherein two first gates 2 are arranged above the base 1, and the two first gates 2 are arranged in parallel on opposite sides of the base 1, wherein sediment can pass through the first gate 2 arranged at the water inlet of the gate, but cannot pass through the first gate 2 arranged at the water outlet, so sediment can be deposited in the space between the two first gates 2 of the gate.

[0031] Reference Figure 1 , Figure 2 The second gate 3 is arranged above the base 1 and between the two first gates 2, and is arranged perpendicular to the two first gates 2. The second gate 3 is not opened under normal circumstances. It will only be opened when the sediment is deposited to a certain extent to clear the sediment out of the gate.

[0032] Reference Figure 1 , Figure 2 The gate driving mechanism 4 is arranged on the first gate 2 and the second gate 3 to drive the gates to open and close. The filter assembly 5 is arranged above the base 1 and is located on the inner side of the first gate 2 on one side and is arranged parallel to it. One side of the second gate 3 contacts the first gate 2 on one side, and the other side of the second gate 3 contacts the filter assembly 5. The filter assembly 5 controls the particle size of filterable sediment and is arranged inside the first gate 2 at one end of the water outlet to filter sediment so that the sediment cannot pass through the first gate 2 at the water outlet. The side plate 6 is arranged on the side of the base 1 where the gate is not installed to ensure the sealing inside the gate.

[0033] Reference Figure 2 , Figure 3 The base 1 also includes a first side plate 11, a second side plate 12, a slope 13, and a triangular side plate 131. The base 1 is made of metal material, and some components can also be made of other materials according to different needs. For example, considering the cost issue, the first side plate 11, the second side plate 12, and the slope 13 can be filled with concrete.

[0034] Reference Figure 2 , Figure 3The first side plate 11 is arranged on the water outlet side of the gate, and the second side plate 12 is arranged on the water inlet side of the gate. A first gate 2 and a filter assembly 5 are arranged on the first side plate 11, and a first gate 2 is arranged on the second side plate 12. Both sides of the lower end of the second gate 3 are arranged on the slope 13. The thickness of the first side plate 11 is greater than that of the second side plate 12. The long sides of the bottom surfaces of the first side plate 11, the second side plate 12, and the slope 13 have the same length. A triangular side plate 1 is arranged on the inner side of the first side plate 11 and the second side plate 12. 31. The triangular side plate 131 is made of metal material, wherein the outer side of one triangular side plate 131 is connected to the inner side of the first side plate 11 by welding, and the front end plane is connected to the second gate 3 by welding, and the outer side of the other triangular side plate 131 is fixedly connected to the inner side of the second side plate 12, and the front end plane is connected to the second gate 3 by welding. A filter assembly 5 is arranged above the first side plate 11 compared with the second side plate 12, so the width of the first side plate 11 is greater than that of the second side plate 12.

[0035] Reference Figure 2 , Figure 3 , a limiting groove 1311 is respectively arranged inside the two triangular side plates 131, and the limiting groove 1311 is parallel to the bottom side of the triangular side plate 131 as a whole, and the height of the inner side, that is, the inner side of the triangular side plate 131 where it is located, is lower than the height of the outer side, that is, from the cross-section, the limiting groove 1311 is an inclined angle with a low inner side and a high outer side, so that the silt cannot be accumulated in large quantities inside the limiting groove 1311, and at most a very small amount of silt will be accumulated at the bottom of the limiting groove 1311, which has no effect on the normal operation of the second gate 3. The cross-section of the slope 13 is a right-angled trapezoid, and the upper surface of the slope 13 is narrower than the lower surface. The upper surface of the slope 13 is provided with a side plate 6. Due to gravity, the slope 13 can make the deposited silt further accumulate inside the angle formed by the slope 13 and the second gate 3, so that it will not pollute the overall water flow at the top, and it is also convenient for the overall cleaning of the silt.

[0036] Reference Figure 1 , Figure 2 , Figure 4 The first gate 2 also includes a first gate frame 21 and a first gate panel 22, wherein the first gate frame 21 is a frame body including four surfaces: upper, lower, left and right. The lower end of the first gate frame 21 is arranged on the first side panel 11. The first gate frame 21 is made of metal material, and the lower end of the first gate frame 21 is welded to the upper surface of the first side panel 11.

[0037] Reference Figure 4 , Figure 5 , Figure 7, the first gate door frame 21 is slidably connected to the inner side of the first gate door frame 21 with the first gate door plate 22, the first gate door frame 21 also includes a first gate slide groove 211, a first gate slide groove anti-sand groove 2111, a lower water retaining plate 212, and a first gate door frame upper through hole 213, wherein the first gate slide groove 211 is arranged at the inner middle part of both sides of the first gate door frame 21, and the first gate slide groove anti-sand groove 2111 is arranged at the lower end of the first gate slide groove 211, the first gate slide groove anti-sand groove 2111 is a slope, the first gate slide groove anti-sand groove 2111 can ensure that the sediment cannot remain in the four corners inside the first gate door frame 21, thereby ensuring the normal opening and closing of the first gate 2, the first gate slide groove 211 can limit the movement trajectory of the first gate door plate 22, and at the same time, because it forms a concave structure with the first gate door frame 21, it can block the water flow and a very small part of the sediment that has not been filtered out by the filter assembly 5, and one structure realizes two functions.

[0038] Reference Figure 4 , Figure 5 , Figure 6 , Figure 7 A lower water retaining plate 212 is provided in the inner middle part of the lower end of the first gate frame 21. The lower water retaining plate 212 is a rectangular parallelepiped as a whole. The height of the lower water retaining plate 212 is higher than the height of the outer side of the lower end of the first gate frame 21, ensuring that when mud and sand pass through the first gate frame 21, they will not remain inside the first gate frame 21, thereby ensuring that the mud and sand will not affect the normal opening and closing of the first gate frame 21.

[0039] Reference Figure 5 A first gate door frame upper through hole 213 is provided in the middle of the upper end of the first gate door frame 21 for installing the gate driving mechanism 5.

[0040] Reference Figure 5 The first gate door panel 22 also includes a first gate slider 221, a first gate slider cut corner 2211, a first gate lower groove 222, and a first gate channel 223, wherein the first gate slider 221 is arranged in the middle of both sides of the first gate door panel 22, and the first gate door panel 22 is slidably connected to the first gate door frame 21 through the cooperation of the first gate slider 221 and the first gate slide groove 211, so that the first gate door panel 22 can be freely opened and closed in the track inside the first gate door frame 21, thereby ensuring the stability of the overall operation of the gate.

[0041] Reference Figure 4 , Figure 5 , Figure 6 , Figure 7A first gate slider cut angle 2211 is provided at the lower end of the first gate slider 221. When the first gate 2 is closed, the first gate slider cut angle 2211 cooperates with the first gate slide sand prevention groove 2111. A first gate lower groove 222 recessed inwardly is provided at the lower end of the first gate door plate 22. When the first gate 2 is closed, the first gate lower groove 222 cooperates with the lower water retaining plate 212 to ensure the airtightness of the first gate door plate 22 and the first gate door frame 21 when they are closed. And because the main components are all made of metal, their service life is extremely long.

[0042] Reference Figure 4 , Figure 5 A first gate channel 223 is arranged inside the first gate door plate 22. The first gate channel 223 is a vertical cylindrical channel. The upper end opening of the first gate channel 223 is located in the middle of the upper end of the first gate door plate 22, and the lower end of the first gate channel 223 is located in the lower middle part of the first gate door plate 22, for use with the gate drive mechanism 5.

[0043] Reference Figure 1 , Figure 2 , Figure 8 The second gate 3 also includes a second gate frame 31 and a second gate panel 32, wherein the second gate frame 31 is a frame body including three surfaces, namely, upper, left and right surfaces, and is made of metal material. The front end of the second gate frame 31 is flush with the first side panel 11 and the second side panel 12. The lower ends of the left and right sides of the second gate frame 31 are welded to the slope 13. The second gate frame 31 is connected to the front plane of the triangular side panel 131 and is welded thereto. The inner thickness of the second gate frame 31 is the same as the thickness of the triangular side panel 131. Similarly, the sealing of the interior of the second gate 3 can be ensured. The lower outer side of the second gate door frame 31 is in contact with the first side plate 11 and the second side plate 12 respectively, and is welded thereto. The second gate door frame 31 is provided with a second gate door plate 32 on the inner side. The second gate door frame 31 also includes a second gate door frame upper through hole 311, wherein the frame bodies on the left and right sides of the second gate door frame 31, the side close to the gate interior is shorter than the side away from the gate interior, to match the slope 13, thereby ensuring the sealing of the second gate 3. The second gate door frame upper through hole 311 is provided in the middle of the upper end of the second gate door frame 31, for installing the gate drive mechanism 5.

[0044] Reference Figure 8 , Fig. 9 , Fig.10The second gate door panel 32 also includes a second gate upper door panel 321, an upper door panel rotating seat 3211, an upper door panel slot 3212, a second gate lower door panel 322, a lower door panel rotating seat 3221, a lower door panel slot 3222, and a rubber pad 3223, wherein the second gate door panel 32 is arranged on the inner side of the second gate door frame 31, and the second gate door panel 32 is divided into two parts, the second gate upper door panel 321 is fixed on the second gate door frame 31, and the second gate lower door panel 322 is rotatably connected to the second gate upper door panel 321, so that the second gate 3 can be opened and closed.

[0045] Reference Figure 8 , Fig. 9 , Fig.10 The second gate upper door plate 321 is provided with an upper door plate rotating seat 3211 at the lower middle end, which protrudes from the second gate upper door plate 321. When the second gate 2 is closed, the lower end of the front portion thereof is vertically located at a certain distance from the second gate lower door plate 322, ensuring that the second gate upper door plate 321 will not be stuck due to the upper door plate rotating seat 3211 when rotating forward, and the rear portion of the lower end is in close contact with the second gate lower door plate 322, and the rear portion of the upper door plate rotating seat 3211 is horizontally located lower than the front portion, and the rear portion of the upper door plate rotating seat 3211 is overall arc-shaped to transition to the flat bottom surface of the lower portion of the upper door plate rotating seat 3211, and the inner side of the lower end of the second gate upper door plate 321, that is, the side close to the inside of the gate, is overall arc-shaped to transition to the middle portion of the lower end of the second gate upper door plate 321, and then extends straight forward from the middle portion of the lower end to the outer side of the second gate upper door plate 321, ensuring the overall airtightness of the second gate 3.

[0046] Reference Figure 8 , Fig. 9 , Fig.10 The second gate upper door plate 321 is provided with an upper door plate slot 3212 inside, the second gate lower door plate 322 is provided at the lower end of the second gate upper door plate 321, and the upper end of the second gate lower door plate 322 is provided with two lower door plate rotating seats 3221, the lower door plate rotating seats 3221 protrude from the second gate lower door plate 322, and the lower door plate rotating seats 3221 are semi-cylindrical to ensure that they will not conflict with the upper door plate rotating seats 3211 during operation. A lower door panel slot 3222 is provided inside 221 for arranging a gate driving mechanism 4 therein; the second gate upper door panel 321 and the second gate lower door panel 322 are rotatably connected by the mutual cooperation of the upper door panel rotating seat 3211 and the lower door panel rotating seat 3221; a rubber pad 3223 is provided at the lower end of the second gate lower door panel 322; the cross-section of the rubber pad 3223 is triangular in shape, matching the inclination angle of the slope 13, thereby ensuring the airtightness of the second gate 3.

[0047] Reference Figure 1 , Figure 2 , Figure 5 , Figure 8The gate drive mechanism 4 also includes a trapezoidal lead screw 41, a nut 42, a bearing 43, and a manual drive wheel 44, wherein the manual drive wheel 44 is respectively arranged above the through hole 213 on the first gate door frame and the through hole 312 on the second gate door frame to provide power for the gate drive mechanism 4.

[0048] In actual use, a motor may be installed on the manual driving wheel 44 so as to use electric drive.

[0049] Reference Figure 4 , Figure 5 , Figure 8 The bearing 43 is arranged inside the through hole 213 on the first gate door frame and the through hole 312 on the second gate door frame, and the bearing 43 is fixedly connected to the manual driving wheel 44.

[0050] Reference Figure 1 , Figure 2 , Figure 5 The trapezoidal lead screw 41 is fixedly connected to the bearing 43 inside the through hole 213 on the first gate door frame, and its lower end is arranged inside the first gate channel 223. The nuts 42 are respectively arranged inside the first gate channel 223, and are located at the upper end of the first gate channel 223, and are fixedly connected to the inner wall of the first gate channel 223. The nut 42 is threadedly connected to the trapezoidal lead screw 41, thereby driving the first gate 2 to open and close.

[0051] The lead screw has a self-locking function, so when the manual drive wheel 44 stops moving, the lead screw 41 also stops moving, and the nut 42 threadedly connected to the lead screw 41 also stops at the corresponding position, thereby achieving the purpose of starting and stopping at the corresponding position of the first gate 2.

[0052] Reference Figure 8 , Fig. 9 , Fig.10 The gate drive mechanism 4 also includes a first transmission shaft 451, a second transmission shaft 452, a transmission shaft bearing 4521, a first bevel gear 453, a second bevel gear 454, and a transmission wheel 455, wherein the upper portion of the upper door panel slot 3212 is cylindrical, extending downward from the upper end center position of the second gate upper door panel 321, extending to the upper door panel rotating seat 3211 and then transforming into a square space, hollowing out the upper door panel rotating seat 3211 as a whole, forming a cavity therein for installing the gate drive mechanism 4.

[0053] Reference Figure 8 , Fig. 9 , Fig.10The lower door panel slot 3222 is located at the upper ends of the left and right sides of the lower door panel rotating seat 3221 and the lower door panel 322 of the second gate. The lower door panel slot 3222 is disc-shaped at the upper ends of the left and right sides of the lower door panel 322 of the second gate, for installing the transmission wheel 455, and extends respectively to the inside of the lower door panel rotating seat 3221 where it is located, passing through the two lower door panel rotating seats 3221, and is cylindrical inside the lower door panel rotating seat 3221 for installing the second transmission shaft 425.

[0054] Reference Figure 8 , Fig. 9 , Fig.10 The first transmission shaft 451 is fixedly connected to the bearing 43 inside the through hole 311 on the second gate door frame, and its lower end is arranged inside the upper door plate slot 3212, and its lower end is fixedly connected to the first bevel gear 453, the second transmission shaft 452 is arranged inside the upper door plate slot 3212 and the lower door plate slot 3222, and passes through the upper door plate rotating seat 3211 and the lower door plate rotating seat 3221, the second bevel gear 454 is arranged on the second transmission shaft 452, and is located inside the upper door plate slot 3212, the first bevel gear 453 and the second bevel gear 4 54 are meshed and connected with each other, and a transmission wheel 455 is fixedly connected to the second transmission shaft 452, and the transmission wheel 455 is arranged inside the lower door plate slot 3222, that is, in the disc-shaped slots at the upper ends of the left and right sides of the second gate lower door plate 322, and the transmission wheel 455 is fixedly connected to the second gate lower door plate 322. Both ends of the second transmission shaft 452 protrude from the second gate lower door plate 322, and are fixedly connected to a transmission shaft bearing 4521, which is arranged inside the second gate door frame 31 corresponding to the horizontal position of the second transmission shaft 452. The first transmission shaft 451 drives the first bevel gear 453 to move, and then the first bevel gear 453 drives the second bevel gear 454 to move, thereby driving the second transmission shaft 452 to move, and after the second transmission shaft 452 moves, it drives the transmission wheel 455 thereon to move, and the transmission wheel 455 drives the second gate lower door plate 322 to open and close, thereby completing the opening and closing of the second gate 3.

[0055] Reference Fig.11 The filter assembly 5 also includes a filter limiting frame 51, a filter limiting groove 511, a filter frame 52, and a filter 53, wherein the filter limiting frame 51 is arranged on the first side plate 11 and on the inner side of the first gate 2, and the filter limiting grooves 511 are arranged on the inner middle part of both sides of the filter limiting frame 51, and the filter frame 52 is arranged on the outer side of the filter 53. The filter frame 52 cooperates with the filter limiting grooves 511 to install the filter 53 on the filter limiting frame 51. The filter assembly 5 adopts a replaceable design, and different filters can be used according to different technical needs, which increases the use scenarios of the present invention.

[0056] Reference Figure 2 , Figure 3 , Fig.12The base 1 also includes a sand pusher 14, a first pin seat 142, a connecting rod 143, a second pin seat 1431, a pin shaft 144, and a limiting wheel 145. The vertical section of the sand pusher 14 is an obtuse triangle, and the angle formed by the upper surface of the sand pusher 14 and the first side plate 11 is smaller than the angle formed by the slope surface of the slope 13 and the first side plate 11. The front end of the sand pusher 14 is perpendicular to the bottom surface of the slope 13, so the sand can be removed to the greatest extent when pushing sand. If the angle is small, sand may remain.

[0057] Reference Figure 2 , Figure 3 The sand pusher 14 is arranged between the two triangular side plates 131 , and the width is the distance between the two triangular side plates 131 , so as to ensure that a large amount of sand will not remain in the gap between the sand pusher 14 and the base 1 .

[0058] A limiting wheel 145 is provided on both sides of the front end of the sand pusher 14. The limiting wheel 145 is arranged inside the limiting groove 1311 and is slidably connected. The limiting wheel 145 matches the shape of the limiting groove 1311, so that the limiting wheel 145 can move in the limiting groove 1311, and then when the gate is opened and closed, the relative position of the sand pusher 14 is simultaneously limited.

[0059] Reference Figure 2 , Figure 3 , Fig.12 , second pin seats 1431 are provided at both ends of the connecting rod 143, the front end of the sand pusher 14 is a plane perpendicular to the bottom surface of the gate, on which a first pin seat 142 is provided, and the first pin seat 142 is provided on the upper inner side of the lower door plate 322 of the second gate, the first pin seat 142 provided on the sand pusher 14 and the first pin seat 142 provided on the lower door plate 322 of the second gate are respectively rotatably connected with the second pin seats 1431 provided at both ends of the connecting rod 143 through the pin shaft 144, and when the sand pusher 14 is at the highest position on the slope 13, the position of the connecting rod 143 is perpendicular to the second gate door plate 32, and the connecting rod structure is adopted to drive the sand pusher 14 by the second gate 3, so that the sand pusher 14 can be automatically started when the gate is opened, and the sand pusher 14 returns to its original position when the gate is closed, the structure is simple, and the operation and maintenance are convenient. The width of the sand pusher 14 is equal to the distance between the two inner frames of the second gate frame 31, so the sand pusher 14 can pass through the second gate frame 31, and the spacing on the outside of the second gate frame 31 is greater than the spacing on the inside, so when the sand pusher 14 pushes the sand forward, part of the sand will not accumulate on the inside of the second gate frame 31. The second gate frame 31 is narrow inside and wide outside, and even if the sand overflows to both sides when being pushed, it will not affect the normal opening and closing of the second gate 3. The length of the connecting rod 143 is such that even if the second gate 3 is opened to the maximum position, that is, the gate panel 32 is lifted to its highest position, the front end of the sand pusher 14 is just flush with the outside of the second gate 3 and will not slide out of the limited position, thereby ensuring the stability of the overall device.

Claims

1. A gate for preventing sand from flowing through a filter tank, characterized in that: It comprises a base (1), a first gate (2), a second gate (3), a gate drive mechanism (4), a filter assembly (5), and a side plate (6), wherein Two first gates (2) are arranged above the base (1), and the two first gates (2) are arranged in parallel on two opposite sides of the base (1). The second gate (3) is arranged above the base (1) and between the two first gates (2), and is arranged perpendicular to the two first gates (2). The gate driving mechanism (4) is arranged on the first gate (2) and the second gate (3) and is used to drive the gates to open and close. The filter assembly (5) is arranged above the base (1) and is located on the inner side of the first gate (2) on one side and is arranged parallel to the first gate (2). One side of the second gate (3) contacts the first gate (2) on one side, and the other side of the second gate (3) contacts the filter assembly (5). The side plate (6) is arranged on the side of the base (1) where the gate is not installed.

2. A gate for preventing sand from flowing through a filter tank according to claim 1, characterized in that: The base (1) further comprises a first side plate (11), a second side plate (12), a slope (13), and a triangular side plate (131), wherein The first side plate (11) is arranged on the water outlet side of the gate, and the second side plate (12) is arranged on the water inlet side of the gate. A first gate (2) and a filter assembly (5) are provided on the first side plate (11). A first gate (2) is provided on the second side plate (12). Both sides of the lower end of the second gate (3) are arranged on a slope (13). The first side plate (11) is thicker than the second side plate (12). The first side plate (11), the second side plate (12), and the slope (13) have the same length on their bottom long sides. A triangular side plate (131) is provided on the inner side of each of the first side plate (11) and the second side plate (12). The outer side of one of the triangular side plates (131) is fixedly connected to the inner side of the first side plate (11), and the front end plane is fixedly connected to the second gate (3). The outer side of the other triangular side plate (131) is fixedly connected to the inner side of the second side plate (12), and the front end plane is fixedly connected to the second gate (3). A limiting groove (1311) is respectively arranged on the inner side of the two triangular side plates (131). The limiting groove (1311) is parallel to the bottom side of the triangular side plate (131) as a whole, and the inner side thereof, i.e. the inner side of the triangular side plate (131) where the limiting groove (1311) is located, is lower than the outer side thereof. In other words, from a cross-sectional view, the limiting groove (1311) is at an inclined angle with the inner side lower and the outer side higher. The cross section of the slope (13) is a right-angled trapezoid. The upper surface of the slope (13) is narrower than the lower surface, and a side plate (6) is provided on the upper surface of the slope (13).

3. A gate for preventing sand from flowing through a filter tank according to claim 2, characterized in that: The first gate (2) further comprises a first gate frame (21) and a first gate panel (22), wherein The first gate door frame (21) is a frame body including four surfaces: upper, lower, left and right. The lower end of the first gate frame (21) is arranged on the first side plate (11). A first gate door panel (22) is slidably connected to the inner side of the first gate door frame (21). The first gate door frame (21) further comprises a first gate slide groove (211), a first gate slide groove anti-sand groove (2111), a lower water retaining plate (212), and a first gate door frame upper through hole (213), wherein A first gate sliding groove (211) is provided at the inner middle part of both sides of the first gate frame (21). A first gate slideway anti-sand groove (2111) is provided at the lower end of the first gate slideway (211). The first gate slideway anti-sand groove (2111) is in a slope shape. A lower water retaining plate (212) is provided at the inner middle portion of the lower end of the first gate frame (21). The left and right ends of the lower water retaining plate (212) are respectively connected to the lower end of a first gate slideway anti-sand groove (2111). The lower water retaining plate (212) is a rectangular parallelepiped as a whole. The height of the lower water retaining plate (212) is higher than the outer height of the lower end of the first gate frame (21). A first gate door frame upper through hole (213) is provided in the middle of the upper end of the first gate door frame (21). The first gate door plate (22) further comprises a first gate slider (221), a first gate slider cut corner (2211), a first gate lower groove (222), and a first gate channel (223), wherein First gate sliders (221) are provided at the middle of both sides of the first gate door plate (22). The first gate door plate (22) is slidably connected to the first gate door frame (21) through the cooperation of the first gate sliders (221) and the first gate sliding grooves (211). A first gate slider cut corner (2211) is provided at the lower end of the first gate slider (221). When the first gate (2) is closed, the first gate slide block cut angle (2211) and the first gate slide groove sand prevention groove (2111) cooperate with each other. The lower end of the first gate plate (22) is provided with a first gate lower groove (222) recessed inwardly. When the first gate (2) is closed, the lower groove (222) of the first gate cooperates with the lower water retaining plate (212). A first gate channel (223) is provided inside the first gate door plate (22). The first gate channel (223) is a vertical cylindrical channel. The upper end opening of the first gate channel (223) is located in the middle of the upper end of the first gate door plate (22). The lower end of the first gate channel (223) is located at the lower middle part of the first gate plate (22).

4. A gate for preventing sand from flowing through a filter tank according to claim 2, characterized in that: The second gate (3) further comprises a second gate frame (31) and a second gate panel (32), wherein: The second gate door frame (31) is a frame body including three surfaces: upper, left and right. The front end of the second gate frame (31) is flush with one side of the first side plate (11) and the second side plate (12). The lower ends of the left and right sides of the second gate frame (31) are arranged on the slope (13) and are fixedly connected thereto. The second gate door frame (31) is connected to the front plane of the triangular side plate (131) and is fixedly connected thereto, and the inner thickness of the second gate door frame (31) is the same as the thickness of the triangular side plate (131). The lower outer side of the second gate frame (31) is in contact with the first side plate (11) and the second side plate (12) respectively, and is fixedly connected thereto. A second gate door panel (32) is arranged inside the second gate door frame (31). The second gate door frame (31) further comprises a through hole (311) on the second gate door frame, wherein The frame bodies on the left and right sides of the second gate frame (31) have a side closer to the gate interior than a side farther from the gate interior. A second gate door frame upper through hole (311) is provided in the middle of the upper end of the second gate door frame (31).

5. A gate for preventing sand on a filter tank according to claim 4, wherein the second gate door plate (32) further comprises a second gate upper door plate (321), an upper door plate rotating seat (3211), an upper door plate slot (3212), a second gate lower door plate (322), a lower door plate rotating seat (3221), a lower door plate slot (3222), and a rubber pad (3223), wherein The second gate door plate (32) is arranged on the inner side of the second gate door frame (31), and the second gate door plate (32) is divided into two parts. The second gate upper door plate (321) is fixed on the second gate door frame (31), and the second gate lower door plate (322) is rotatably connected to the second gate upper door plate (321). An upper door panel rotating seat (3211) is provided at the lower middle end of the second gate upper door panel (321), which protrudes from the second gate upper door panel (321). When the second gate (2) is closed, the lower end of the front portion thereof is vertically located at a certain distance from the second gate lower door panel (322), and the rear portion of the lower end thereof is in close contact with the second gate lower door panel (322). The rear portion of the upper door panel rotating seat (3211) is horizontally located lower than the front portion, and the rear portion of the upper door panel rotating seat (3211) is in an arc shape as a whole, transitioning to the flat bottom surface of the lower portion of the upper door panel rotating seat (3211). The inner side of the lower end of the second gate upper door plate (321), that is, the side close to the gate interior, transitions to the middle of the lower end of the second gate upper door plate (321) in an arc shape, and then extends straight forward from the middle of the lower end to the outer side of the second gate upper door plate (321). An upper door panel slot (3212) is provided inside the upper door panel (321) of the second gate. The second gate lower door plate (322) is arranged at the lower end of the second gate upper door plate (321). Two lower door panel rotating seats (3221) are arranged at the upper end of the lower door panel (322) of the second gate. The lower door panel rotating seats (3221) protrude from the lower door panel (322) of the second gate. The lower door panel rotating seats (3221) are semi-cylindrical. A lower door panel slot (3222) is provided inside the lower door panel rotating seat (3221). The second gate upper door plate (321) and the second gate lower door plate (322) are rotatably connected through the cooperation of the upper door plate rotating seat (3211) and the lower door plate rotating seat (3221). A rubber pad (3223) is provided at the lower end of the lower door plate (322) of the second gate. The cross section of the rubber pad (3223) is triangular and matches the inclination angle of the slope (13).

6. A gate for preventing sand from flowing on a filter tank according to claim 3 or 4, characterized in that: The gate drive mechanism (4) further comprises a trapezoidal lead screw (41), a nut (42), a bearing (43), and a manual drive wheel (44), wherein The manual drive wheel (44) is arranged above the through hole (213) on the first gate door frame and the through hole (311) on the second gate door frame. The bearing (43) is arranged inside the through hole (213) on the first gate door frame and the through hole (311) on the second gate door frame. The bearing (43) is fixedly connected to the manual drive wheel (44). The trapezoidal lead screw (41) is fixedly connected to the bearing (43) inside the through hole (213) on the first gate frame, and its lower end is arranged inside the first gate channel (223). The nuts (42) are respectively arranged inside the first gate hole (223), located at the upper end of the first gate hole (223), and fixedly connected to the inner wall of the first gate hole (223). The nut (42) is threadedly connected to the trapezoidal lead screw (41).

7. A gate for preventing sand from flowing through a filter tank according to claim 6, characterized in that: The gate drive mechanism (4) further comprises a first transmission shaft (451), a second transmission shaft (452), a transmission shaft bearing (4521), a first bevel gear (453), a second bevel gear (454), and a transmission wheel (455), wherein The upper portion of the upper door panel slot (3212) is cylindrical, extending downward from the upper center of the second gate upper door panel (321), and then transforming into a square space after extending to the upper door panel rotating seat (3211), hollowing out the upper door panel rotating seat (3211) as a whole to form a cavity therein. The lower door panel slots (3222) are located at the upper ends of the lower door panel rotating seat (3221) and the left and right sides of the lower door panel (322) of the second gate. The lower door panel slots (3222) are disc-shaped at the upper ends of the left and right sides of the lower door panel (322) of the second gate, and extend into the interior of the lower door panel rotating seats (3221) respectively, passing through the two lower door panel rotating seats (3221), and are cylindrical inside the lower door panel rotating seats (3221). The first transmission shaft (451) is fixedly connected to the bearing (43) inside the through hole (311) on the second gate frame, and its lower end is arranged inside the upper door plate slot (3212), and its lower end is fixedly connected to the first bevel gear (453). The second transmission shaft (452) is arranged inside the upper door panel slot (3212) and the lower door panel slot (3222), and passes through the upper door panel rotating seat (3211) and the lower door panel rotating seat (3221). The second bevel gear (454) is disposed on the second transmission shaft (452) and is located inside the upper door panel slot (3212). The first bevel gear (453) and the second bevel gear (454) are meshed and connected with each other. A transmission wheel (455) is fixedly connected to the second transmission shaft (452). The transmission wheel (455) is arranged inside the lower door panel slot (3222), that is, inside the disc-shaped slots at the upper ends of the left and right sides of the lower door panel (322) of the second gate. The transmission wheel (455) is fixedly connected to the lower door panel (322) of the second gate. Both ends of the second transmission shaft (452) protrude from the lower door plate (322) of the second gate and are fixedly connected to transmission shaft bearings (4521). The transmission shaft bearing (4521) is arranged inside the second gate door frame (31) corresponding to the horizontal position of the second transmission shaft (452).

8. The gate for preventing sand from flowing on a filter tank according to claim 2, characterized in that: The filter assembly (5) further comprises a filter limiting frame (51), a filter limiting groove (511), a filter frame (52), and a filter (53), wherein The filter screen limiting frame (51) is arranged on the first side plate (11) and is arranged on the inner side of the first gate (2). Filter limiting grooves (511) are provided at the inner middle portions of both sides of the filter limiting frame (51). A filter frame (52) is arranged outside the filter (53). The filter frame (52) cooperates with the filter limiting groove (511) to install the filter (53) on the filter limiting frame (51).

9. The gate for preventing sand from flowing on a filter tank according to claim 5, characterized in that: The base (1) further comprises a sand pusher (14), a first pin seat (142), a connecting rod (143), a second pin seat (1431), a pin shaft (144), and a limiting wheel (145), wherein The vertical cross-section of the sand pusher (14) is an obtuse triangle, and the angle formed by the upper surface of the sand pusher (14) and the first side plate (11) is smaller than the angle formed by the slope surface of the slope (13) and the first side plate (11). The sand pusher (14) is arranged between the two triangular side plates (131), and has a width equal to the distance between the two triangular side plates (131). A limiting wheel (145) is respectively arranged on both sides of the front end of the sand pusher (14). The limiting wheel (145) is arranged inside the limiting groove (1311) and is slidably connected to the limiting groove (1311) and matches the shape of the limiting groove (1311) so that the limiting wheel (145) can move in the limiting groove (1311). Second pin seats (1431) are provided at both ends of the connecting rod (143). The front end of the sand pusher (14) is a plane perpendicular to the bottom surface of the gate, on which a first pin seat (142) is arranged. A first pin seat (142) is provided on the inner upper portion of the second gate lower door plate (322). The first pin seat (142) provided on the sand pusher (14) and the first pin seat (142) provided on the lower door plate (322) of the second gate are rotatably connected through a pin shaft (144) and second pin seats (1431) provided at both ends of the connecting rod (143). When the sand pusher (14) is at the highest position on the slope (13), the connecting rod (143) is located perpendicular to the second gate plate (32).

Images