Dam gate desilting device

Abstract

A dam gate desilting device comprises a dam, a fixed supporting frame and a water gate mechanism, a sand settling pit is formed in the bottom of the dam, a conveyor positioning groove is formed in the bottom of the sand settling pit, a first sliding groove and a second sliding groove are formed in the inner side of the dam and arranged in parallel, and the top of the dam is connected with the fixed supporting frame. Two third sliding grooves are formed in the inner side of the fixed supporting frame, silt is effectively prevented from entering the downstream of a river channel, a hand wheel can adjust the two gates to move up and down at the same time under the action of right-hand threads and left-hand threads, adjustment is convenient, operation is easy, river water contained in the silt is better drained back into a dam along a water pipe, water resource waste is effectively prevented, water resources are saved, and practicability is high. The water content in the silt is reduced, and the silt is convenient to recycle.

Description

Technical Field

[0001] The utility model relates to the field of water conservancy projects, in particular to a dam gate sand discharge device. Background Art

[0002] The existing patent (Announcement No.: 202123453129.2) proposes a dam gate sand discharge device, which involves the field of water conservancy engineering technology, including a gate, a sand-trapping pier is arranged downstream of the gate, a sand-trapping pier is provided with a sand-trapping trough, a sand-trapping board is installed in the sand-trapping trough, a plurality of sand-trapping holes are arranged on the sand-trapping board, a crossbeam is fixed on the sand-trapping pier, and a lifting device for lifting the sand-trapping board is arranged in the crossbeam. The sediment discharged by the above device has a high water content, and the sediment needs to be dried before use, which is easy to cause waste of water resources, and its structure needs to be improved. Summary of the invention

[0003] The utility model aims at the above-mentioned deficiencies in the prior art and provides a dam gate sand discharge device which effectively prevents silt from entering the downstream of the river. Under the action of positive and negative threads, a hand wheel can adjust the two gates to move up and down at the same time. The adjustment is convenient and the operation is simple. The river water contained in the silt can be better discharged back to the dam along the water pipe, which effectively prevents the waste of water resources, saves water resources, reduces the water content in the silt, and is convenient for the reuse of silt.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A dam gate sand discharge device comprises a dam, a fixed support frame, and a sluice mechanism. The dam has a sand settling pit at the bottom, a conveyor positioning groove at the bottom of the sand settling pit, a No. 1 chute and a No. 2 chute are arranged in parallel on the inner side of the dam, the top of the dam is connected to the fixed support frame, the inner side of the fixed support frame has two No. 3 chutes, the No. 3 chute corresponds to the No. 1 chute, the No. 1 chute corresponds to the No. 2 chute, the inner side of the fixed support frame is connected to the sluice mechanism, the bottom of the sluice mechanism is connected to the fixed support frame, a sand pool is provided on the upper boss of the dam, a stirring device is connected to the inner side of the sand pool, a silt conveyor is connected to the outer side of the sand pool, the bottom of the inner rotating shaft of the silt conveyor is connected to the conveyor positioning groove, the upper part of the silt conveyor is connected to the sand pool, and the sluice The mechanism includes a No. 1 gate, a No. 2 gate, a No. 1 handwheel, and a No. 1 screw. The inner side of the No. 1 gate is provided with a No. 1 filter screen, and the lower part of the No. 1 filter screen is provided with a sand retaining plate. The No. 1 gate cooperates with the No. 1 slide slot, and the No. 1 gate slides in the No. 1 slide slot. The top of the No. 1 gate is connected to the No. 1 screw via a bearing, and the top of the No. 1 screw passes through a fixed support frame and is threadedly connected to the No. 1 handwheel. The outer gear of the No. 1 handwheel is connected to the outer gear of the No. 2 handwheel via a chain, and the inner side of the No. 2 handwheel is threadedly connected to the No. 2 screw. The bottom end of the No. 2 screw passes through the No. 2 handwheel and the fixed support frame in turn and is connected to the No. 2 gate via a bearing. The No. 2 gate cooperates with the No. 2 slide slot, and the No. 2 gate slides in the No. 2 slide slot. The inner thread of the No. 1 handwheel is a positive thread, and the inner thread of the No. 2 handwheel is a negative thread.

[0006] The stirring device of the utility model comprises a stirring plate, a stirring disc, a positioning support plate, and a crank. The lower part of the stirring plate is connected to a sand pool, the stirring plate swings in the sand pool, the rotating shaft at the bottom of the stirring plate passes through a partition to connect to the stirring disc, the outer side of the stirring disc is provided with a plurality of auxiliary chutes, the outer side of the stirring disc is provided with a plurality of regulating chutes, the auxiliary chutes and the regulating chutes are cross-arranged on the outer side of the stirring disc, the rotating shaft at the bottom end of the stirring disc is connected to the positioning support plate, the positioning support plate rotates on the stirring disc, the bottom of the positioning support plate is connected to the second gear, the rotating shaft at the top of the second gear passes through the positioning support plate The plate is connected to crank No. 2, crank No. 2 rotates on the positioning support plate, the bottom shaft of gear No. 2 is connected to the motor shaft at the top of the motor, the outside of the motor is connected to the sand pool, gear No. 2 is meshed with gear No. 3, the upper shaft of gear No. 3 is connected to the positioning support plate, the lower shaft of gear No. 3 is connected to the sand pool, gear No. 3 is meshed with gear No. 1, the upper shaft of gear No. 1 is connected to the positioning support plate, the lower shaft of gear No. 1 is connected to the sand pool, gear No. 1 is meshed with gear No. 4, the top shaft of gear No. 4 passes through the positioning support plate to connect crank No. 1, and the lower shaft of gear No. 4 is connected to the sand pool. Beneficial Effects

[0007] When the dam of the utility model flows normally, gate No. 1 falls down and gate No. 2 rises up, and the sand retaining plate and the filter No. 1 block the sediment inside the river water. Under the action of the sand retaining plate and the filter No. 1, the sediment is deposited in the sedimentation pit, effectively preventing the sediment from entering the downstream of the river. When the dam needs to be drained, the hand wheel No. 1 or the hand wheel No. 2 is turned, and under the action of the positive and negative threads, gate No. 2 falls down to block the flow of river water, and gate No. 1 is lifted upward, which is convenient to adjust and simple to operate.

[0008] The utility model sediment conveyor conveys the sediment in the sedimentation pit into the sand pool. When the sediment conveyor conveys the sediment into the sand pool, the motor drives the No. 2 gear to rotate. When the No. 2 gear rotates, the No. 3 gear, the No. 1 gear and the No. 4 gear rotate together, and the rotation speed is the same. The No. 2 gear rotates in opposite directions to the No. 3 gear, the No. 3 gear rotates in opposite directions to the No. 1 gear, the No. 1 gear rotates in opposite directions to the No. 4 gear, and the No. 2 gear rotates in opposite directions to the No. 4 gear, thereby driving the No. 2 crank and the No. 1 crank to rotate in opposite directions at the same speed. When the No. 2 crank and the No. 1 crank rotate, they drive the stirring disc and the stirring plate to swing, and the swing angle is °. When the stirring plate swings, the sediment in the sand pool is stirred, so that the river water contained in the sediment can be better discharged back to the dam along the water pipe, thereby effectively preventing the waste of water resources.

[0009] The stirring plate of the utility model cleans the silt on the upper part of the second filter screen when swinging, so as to facilitate the discharge of the river water inside the silt and save water resources. In addition, the second filter screen and the filter have a filtering effect on the river water inside the silt, thus reducing the sand content of the river water inside the silt, preventing the blockage of the water pipe, reducing the water content inside the silt and facilitating the reuse of the silt. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is a schematic structural diagram of a dam gate sand discharge device.

[0011] Figure 2 The utility model is a schematic diagram of a dam structure of a dam gate sand discharge device.

[0012] Figure 3 The utility model is a schematic diagram of the structure of a dam gate sand discharge device sluice mechanism.

[0013] Figure 4 The utility model is a schematic diagram of the structure of a stirring device of a dam gate sand discharge device.

[0014] Figure 5 The utility model is a schematic diagram of the structure of a stirring plate of a dam gate sand discharge device.

[0015] Figure 6The utility model is a schematic diagram of the structure of a stirring disc of a dam gate sand discharge device.

[0016] Figure 7 The utility model is a schematic diagram of a positioning support plate structure of a dam gate sand discharge device.

[0017] Figure 8 The utility model is a schematic diagram of the first crank structure of a dam gate sand discharge device.

[0018] Fig. 9 The utility model is a schematic diagram of the second crank structure of the dam gate sand discharge device.

[0019] Fig.10 The utility model is a schematic diagram of the gear structure of a dam gate sand discharge device.

[0020] Fig.11 The utility model is a schematic diagram of the filter structure of a dam gate sand discharge device.

[0021] Fig.12 The utility model is a schematic diagram of a fixed connecting plate structure of a dam gate sand discharge device.

[0022] Fig.13 The utility model is a schematic diagram of the filter ball structure of a dam gate sand discharge device.

[0023] Fig.14 It is a structural sectional view of a dam gate sand discharge device described in the utility model. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below according to the accompanying drawings and embodiments:

[0025] Embodiment 1:

[0026] A dam gate sand discharge device comprises a dam 01, a fixed support frame 02, and a sluice mechanism 03. The dam 01 has a sand settling pit 11 at the bottom, and a conveyor positioning groove 15 at the bottom of the sand settling pit 11. The dam 01 has a first chute 12 and a second chute 14 on the inside, and the first chute 12 and the second chute 14 are arranged in parallel on the inside of the dam 01. The top of the dam 01 is connected to the fixed support frame 02, and the fixed support frame 02 has two third chute 21 on the inside, and the third chute 21 corresponds to the first chute 12, and the first chute 12 corresponds to the second chute 14. The fixed support frame 02 is connected to the inside of the fixed support frame 02. The water gate mechanism 03 is connected to the fixed support frame 02 at the bottom, and a sand pool 13 is arranged on the upper boss of the dam 01. The inner side of the sand pool 13 is connected to the stirring device 05, and the outer side of the sand pool 13 is connected to the silt conveyor 04. The bottom of the inner rotating shaft of the silt conveyor 04 is connected to the conveyor positioning groove 15, and the upper part of the silt conveyor 04 is connected to the sand pool 13. The water gate mechanism 03 includes a No. 1 gate 31, a No. 2 gate 32, a No. 1 hand wheel 33, and a No. 1 screw 34. The No. 1 gate 31 has a No. 1 filter screen 39 on the inner side, and a sand retaining plate 38 is provided at the lower part of the No. 1 filter screen 39. The No. 1 gate 31 and the No. 1 slideway are connected. 12 cooperates, gate No. 1 31 slides in slide No. 12, the top of gate No. 1 31 is connected to screw No. 1 34 through a bearing, the top of screw No. 1 34 passes through fixed support frame 02 and is threadedly connected to hand wheel No. 1 33, the outer gear of hand wheel No. 1 33 is connected to the outer gear of hand wheel No. 2 36 through chain 37, the inner side of hand wheel No. 2 36 is threadedly connected to screw No. 2 35, the bottom end of screw No. 2 35 passes through hand wheel No. 2 36 and fixed support frame 02 in turn and is connected to gate No. 2 32 through a bearing, gate No. 2 32 cooperates with slide No. 2 14, gate No. 2 32 slides in slide No. 2 14, hand wheel No. 1 The inner thread of the wheel 33 is a positive thread, and the inner thread of the No. 2 handwheel 36 is a negative thread. When the dam is flowing normally, the No. 1 gate 31 falls and the No. 2 gate 32 is lifted, and the sand retaining plate 38 and the No. 1 filter screen 39 play a blocking role for the silt inside the river water. Under the action of the sand retaining plate 38 and the No. 1 filter screen 39, the silt is deposited in the sedimentation pit 11, effectively preventing the silt from entering the downstream of the river. When you want to drain the dam, turn the No. 1 handwheel 33 or the No. 2 handwheel 36. Under the action of the positive and negative threads, the No. 2 gate 32 falls to block the flow of river water, and the No. 1 gate 31 is lifted upward, which is easy to adjust and simple to operate.

[0027] Embodiment 2:

[0028] The stirring device 05 of the utility model comprises a stirring plate 51, a stirring disc 52, a positioning support plate 53, and a crank 54. The lower part of the stirring plate 51 is connected to the sand pool 13, and the stirring plate 51 swings in the sand pool 13. The bottom end of the stirring plate 51 has a rotating shaft passing through a partition to connect the stirring disc 52. The outer side of the stirring disc 52 has a plurality of auxiliary chutes 521, and the outer side of the stirring disc 52 has a plurality of adjusting chutes 522. The auxiliary chutes 521 and the adjusting chutes 522 are cross-arranged on the outer side of the stirring disc 52. The bottom end of the stirring disc 52 has a rotating shaft connected to the positioning support plate 53, and the positioning support plate 53 rotates on the stirring disc 52. The bottom of the positioning support plate 53 is connected to the second gear 56, and the top rotating shaft of the second gear 56 passes through the positioning support plate 53. Plate 53 is connected to crank No. 2 57, crank No. 2 57 rotates on positioning support plate 53, bottom shaft of gear No. 2 56 is connected to top motor shaft of motor 09, outer side of motor 09 is connected to sand pool 13, gear No. 2 56 is meshed with gear No. 3 58, upper shaft of gear No. 3 58 is connected to positioning support plate 53, lower shaft of gear No. 3 58 is connected to sand pool 13, gear No. 3 58 is meshed with gear No. 1 55, upper shaft of gear No. 1 55 is connected to positioning support plate 53, lower shaft of gear No. 1 55 is connected to sand pool 13, gear No. 1 55 is meshed with gear No. 4 59, top shaft of gear No. 4 59 passes through positioning support plate 53 to connect crank No. 1 54, lower shaft of gear No. 4 59 is connected to sand pool 13.

[0029] Embodiment 3:

[0030] The utility model discloses a first crank 54 with a first fan-shaped plate 543 on the upper part, a first adjustment handle 541 on the lower part of the first fan-shaped plate 543, a first column 542 on the upper part of the first adjustment handle 541, a second crank 57 with a second fan-shaped plate 573 on the upper part, a second adjustment handle 571 on the lower part of the second fan-shaped plate 573, a second column 572 on the upper part of the second adjustment handle 571, a first fan-shaped plate 543 cooperates with an adjustment slot 522, and a first fan-shaped plate 543 is provided. The plate 543 slides in the adjusting chute 522, the adjusting chute 522 cooperates with the second fan-shaped plate 573, the second fan-shaped plate 573 slides in the adjusting chute 522, the first column 542 cooperates with the auxiliary chute 521, the first column 542 slides in the auxiliary chute 521, the second column 572 cooperates with the auxiliary chute 521, the second column 572 slides in the auxiliary chute 521, and the sediment conveyor 04 transports the sediment inside the sedimentation pit 11. The sand is sent to the sand pool 13. When the sand conveyor 04 transports the sand into the sand pool 13, the motor 09 drives the second gear 56 to rotate. When the second gear 56 rotates, the third gear 58, the first gear 55 and the fourth gear 59 rotate together, and the rotation speed is the same. The second gear 56 rotates in opposite directions to the third gear 58, the third gear 58 rotates in opposite directions to the first gear 55, the first gear 55 rotates in opposite directions to the fourth gear 59, and the second gear 56 rotates in opposite directions to the fourth gear 59, thereby driving the second crank 57 and the first crank 54 to rotate in opposite directions at the same speed. When the second crank 57 and the first crank 54 rotate, the stirring disc 52 and the stirring plate 51 are driven to swing, and the swing angle is 90°. When the stirring plate 51 swings, the sand inside the sand pool 13 is stirred, so that the river water contained in the sand can be better discharged back to the dam along the water pipe 08, effectively preventing the waste of water resources.

[0031] Embodiment 4:

[0032] The bottom of the sand pool 13 of the utility model is connected with two No. 2 filter screens 06, the No. 2 filter screens 06 are symmetrically arranged, the top of the No. 2 filter screen 06 is connected with a stirring plate 51, the stirring plate 51 slides on the No. 2 filter screen 06, a filter 07 is arranged at the bottom of the No. 2 filter screen 06, the outer side of the filter 07 is connected to the sand pool 13, the filter 07 includes a fixed connecting plate 71 and a filter ball 72, the outer side of the fixed connecting plate 71 is connected to the sand pool 13, the inner side of the fixed connecting plate 71 is connected to the filter ball 72, the filter ball 72 rotates in the fixed connecting plate 71, the inner side of the filter ball 72 has a connecting hole 73, the inner side of the filter ball 72 has two auxiliary rotating grooves 75, the auxiliary rotating grooves 75 are symmetrically arranged, and the filter 07 is connected to the sand pool 13. The inner side of the connection hole 73 is connected to the filter ball 72, and the outer side of the filter ball 72 is provided with two auxiliary shafts 74, the auxiliary shafts 74 cooperate with the auxiliary rotating groove 75, and the auxiliary shafts 74 rotate in the auxiliary rotating groove 75. The lower part of the filter 07 is connected to the water inlet of the water pipe 08, and the water outlet of the water pipe 08 is connected to the side wall of the dam 01. When the stirring plate 51 swings, the sediment on the upper part of the No. 2 filter screen 06 is cleaned, so as to facilitate the removal of the river water inside the sediment and save water resources. In addition, the No. 2 filter screen 06 and the filter 07 filter the river water inside the sediment, reduce the sediment content of the river water inside the sediment, prevent the water pipe 08 from being blocked, reduce the water content inside the sediment, and facilitate the reuse of the sediment.

[0033] Embodiment 5:

[0034] Installation steps: When the dam is flowing normally, the No. 1 gate 31 falls down and the No. 2 gate 32 is lifted up, and the sand retaining plate 38 and the No. 1 filter screen 39 play a role in blocking the sediment inside the river water. Under the action of the sand retaining plate 38 and the No. 1 filter screen 39, the sediment is deposited in the sedimentation pit 11, effectively preventing the sediment from entering the downstream of the river. When you want to discharge the sediment from the dam, turn the No. 1 hand wheel 33 or the No. 2 hand wheel 36. Under the action of the positive and negative threads, the No. 2 gate 32 falls down to block the flow of river water, and the No. 1 hand wheel 36 is turned. The gate 31 is lifted upward, which is convenient to adjust and easy to operate. The silt conveyor 04 conveys the silt inside the sediment pit 11 to the sand pool 13. When the silt conveyor 04 conveys the silt to the sand pool 13, the motor 09 drives the second gear 56 to rotate. When the second gear 56 rotates, the third gear 58, the first gear 55, and the fourth gear 59 rotate together, and the rotation speed is the same. The second gear 56 rotates in the opposite direction to the third gear 58, and the third gear 58 rotates in the opposite direction to the first gear 55. 5 rotates in opposite directions, the No. 1 gear 55 rotates in opposite directions to the No. 4 gear 59, and the No. 2 gear 56 rotates in opposite directions to the No. 4 gear 59, thereby driving the No. 2 crank 57 and the No. 1 crank 54 to rotate in opposite directions at the same speed. The structure is reasonable. When the No. 2 crank 57 and the No. 1 crank 54 rotate, the stirring disc 52 and the stirring plate 51 are driven to swing, and the swing angle is 90°. When the stirring plate 51 swings, the silt inside the sand pool 13 is stirred, so that the river water contained in the silt is better discharged back to the dam along the water pipe 08, effectively preventing the waste of water resources. When the stirring plate 51 swings, the silt on the upper part of the No. 2 filter screen 06 is cleaned, so that the river water inside the silt is discharged, saving water resources, and the No. 2 filter screen 06 and the filter 07 filter the river water inside the silt, reducing the sand content of the river water inside the silt, preventing the water pipe 08 from being blocked, reducing the water content inside the silt, and facilitating the reuse of the silt.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A dam gate sand discharge device, characterized in that The invention comprises a dam (01), a fixed support frame (02), and a sluice mechanism (03). The bottom of the dam (01) is provided with a sedimentation pit (11), the bottom of the sedimentation pit (11) is provided with a conveyor positioning groove (15), the inner side of the dam (01) is provided with a No. 1 chute (12) and a No. 2 chute (14), the No. 1 chute (12) and the No. 2 chute (14) are arranged in parallel on the inner side of the dam (01), the top of the dam (01) is connected to the fixed support frame (02), the inner side of the fixed support frame (02) is provided with two No. 3 chute (21), the No. 3 chute (21) and the No. 1 chute (14) are arranged in parallel on the inner side of the dam (01), and the No. 3 chute (21) and the No. 1 chute (14) are arranged in parallel on the inner side of the dam (01). The first chute (12) corresponds to the second chute (14), the inner side of the fixed support frame (02) is connected to the sluice mechanism (03), the bottom of the sluice mechanism (03) is connected to the fixed support frame (02), the upper boss of the dam (01) is provided with a sand pool (13), the inner side of the sand pool (13) is connected to the stirring device (05), the outer side of the sand pool (13) is connected to the sediment conveyor (04), the bottom of the inner rotating shaft of the sediment conveyor (04) is connected to the conveyor positioning groove (15), the upper part of the sediment conveyor (04) is connected to the sand pool (13), and the sluice machine The structure (03) comprises a No. 1 gate (31), a No. 2 gate (32), a No. 1 hand wheel (33), and a No. 1 screw rod (34). The No. 1 gate (31) has a No. 1 filter screen (39) on the inner side, and a sand retaining plate (38) is provided at the lower part of the No. 1 filter screen (39). The No. 1 gate (31) cooperates with the No. 1 slide groove (12). The No. 1 gate (31) slides in the No. 1 slide groove (12). The top end of the No. 1 gate (31) is connected to the No. 1 screw rod (34) through a bearing. The top end of the No. 1 screw rod (34) passes through the fixed support frame (02) and is threadedly connected to the No. 1 hand wheel ( 33), the outer gear of the No. 1 handwheel (33) is connected to the outer gear of the No. 2 handwheel (36) through a chain (37), the inner thread of the No. 2 handwheel (36) is connected to the No. 2 screw rod (35), the bottom end of the No. 2 screw rod (35) passes through the No. 2 handwheel (36) and the fixed support frame (02) in sequence, and is connected to the No. 2 gate (32) through a bearing, the No. 2 gate (32) cooperates with the No. 2 slide groove (14), the No. 2 gate (32) slides in the No. 2 slide groove (14), the inner thread of the No. 1 handwheel (33) is a positive thread, and the inner thread of the No. 2 handwheel (36) is a reverse thread.

2. A dam gate sand discharge device according to claim 1, characterized in that The stirring device (05) comprises a stirring plate (51), a stirring disc (52), a positioning support plate (53), and a first crank (54). The stirring plate (51) is connected to a sand pool (13) at its lower part. The stirring plate (51) swings in the sand pool (13). The bottom end rotation shaft of the stirring plate (51) passes through a partition plate to connect to the stirring disc (52). The outer side of the stirring disc (52) has a plurality of auxiliary chutes (521). The outer side of the stirring disc (52) has a plurality of adjustment chutes (522). The auxiliary chutes (521) and the adjustment chutes (522) are arranged crosswise on the outer side of the stirring disc (52). The bottom end rotation shaft of the stirring disc (52) is connected to the positioning support plate (53). The positioning support plate (53) rotates on the stirring disc (52). The bottom of the positioning support plate (53) is connected to a second gear (56). The top rotation shaft of the second gear (56) passes through the positioning support plate (53). ) is connected to the second crank (57), the second crank (57) rotates on the positioning support plate (53), the bottom shaft of the second gear (56) is connected to the top motor shaft of the motor (09), the outer side of the motor (09) is connected to the sand pool (13), the second gear (56) is meshed with the third gear (58), the upper shaft of the third gear (58) is connected to the positioning support plate (53), the lower shaft of the third gear (58) is connected to the sand pool (13), the third gear (58) is meshed with the first gear (55), the upper shaft of the first gear (55) is connected to the positioning support plate (53), the lower shaft of the first gear (55) is connected to the sand pool (13), the first gear (55) is meshed with the fourth gear (59), the top shaft of the fourth gear (59) passes through the positioning support plate (53) and is connected to the first crank (54), and the lower shaft of the fourth gear (59) is connected to the sand pool (13).

3. A dam gate sand discharge device according to claim 2, characterized in that The first crank (54) has a first sector plate (543) on the upper part, the first sector plate (543) has a first adjustment handle (541) on the lower part, the first adjustment handle (541) has a first column (542) on the upper part, the second crank (57) has a second sector plate (573) on the upper part, the second sector plate (573) has a second adjustment handle (571) on the lower part, the second adjustment handle (571) has a second column (572) on the upper part, the first sector plate (543) and the adjustment slide groove (522) are connected to each other. The first fan-shaped plate (543) slides in the adjustment chute (522), the adjustment chute (522) cooperates with the second fan-shaped plate (573), the second fan-shaped plate (573) slides in the adjustment chute (522), the first column (542) cooperates with the auxiliary chute (521), the first column (542) slides in the auxiliary chute (521), the second column (572) cooperates with the auxiliary chute (521), and the second column (572) slides in the auxiliary chute (521).

4. A dam gate sand discharge device according to claim 3, characterized in that The bottom of the sand pool (13) is connected to two No. 2 filter screens (06), the No. 2 filter screens (06) are symmetrically arranged, the top of the No. 2 filter screen (06) is connected to a stirring plate (51), the stirring plate (51) slides on the No. 2 filter screen (06), a filter (07) is arranged at the bottom of the No. 2 filter screen (06), the outer side of the filter (07) is connected to the sand pool (13), the filter (07) comprises a fixed connection plate (71) and a filter ball (72), the outer side of the fixed connection plate (71) is connected to the sand pool (13), the inner side of the fixed connection plate (71) is connected to the filter ball (72), the filter ball (72) 2) rotating in the fixed connection plate (71), the filter ball (72) has a connection hole (73) on the inner side, the filter ball (72) has two auxiliary rotation grooves (75) on the inner side, the auxiliary rotation grooves (75) are symmetrically arranged, the filter ball (72) is connected to the inner side of the connection hole (73), the filter ball (72) has two auxiliary rotation shafts (74) on the outer side, the auxiliary rotation shafts (74) cooperate with the auxiliary rotation grooves (75), the auxiliary rotation shafts (74) rotate in the auxiliary rotation grooves (75), the lower part of the filter (07) is connected to the water inlet of the water pipe (08), and the water outlet of the water pipe (08) is connected to the side wall of the dam (01).

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