Water stop device on the side of the sluice

Abstract

The present application relates to a side water stop device for a sluice, belonging to the technical field of gate equipment. It includes a device housing, through which a water passage opening is formed. An installation cavity is provided inside the device housing, and a water blocking plate is embedded and slidably installed in the installation cavity. A driving mechanism is connected to the water blocking plate, and the driving mechanism is used to drive the water blocking plate to slide in the installation cavity. Both sides of the water blocking plate are slidably installed in two side grooves respectively, and the two side grooves are symmetrically formed on the device housing. Side wall air bags are installed in both of the two side grooves, and the two side wall air bags are closely attached to both sides of the water blocking plate respectively. The present application has the effect of preventing water from flowing from the side to the downstream when the sluice is closed, and improving the water tightness of the gate for water blocking.

Description

Technical Field

[0001] This application relates to the field of gate equipment technology, and particularly to a side water stop device for a sluice gate. Background Art

[0002] A low-head hydraulic structure built on rivers and channels to control the flow and regulate the water level using a gate. Closing the gate can hold back floods, tide, or raise the upstream water level to meet the needs of irrigation, power generation, shipping, aquaculture, environmental protection, industrial and domestic water use, etc.; opening the gate can discharge floods, waterlogging, waste water, or supply water to the downstream river or channel. In water conservancy projects, sluice gates, as water retaining, discharging, or water intake structures, are widely used.

[0003] Due to the need to perform functions such as water retaining and discharging, the water retaining board of the sluice gate needs to rise and fall. When the water retaining board of the sluice gate moves, considering the influence of friction and the wear of the side wall of the water retaining board, the two sides of the water retaining board of the sluice gate cannot fit tightly with the housing of the sluice gate device, and there are gaps between the two sides of the water retaining board of the sluice gate and the housing of the sluice gate device. When using the sluice gate for water retaining treatment, water will flow downstream through the gaps existing between the two sides of the water retaining board of the sluice gate and the housing of the sluice gate device.

[0004] Regarding the above related technologies, the inventor believes that when the sluice gate is closed at the present stage, water flow will flow downstream through the gaps existing on the side, and the water retaining effect is poor. Summary of the Invention

[0005] In order to prevent water flow from flowing downstream from the side when the sluice gate is closed and improve the water retaining effect of the gate, this application provides a side water stop device for a sluice gate.

[0006] A side water stop device for a sluice gate provided by this application adopts the following technical solution:

[0007] A side water stop device for a sluice gate includes a device housing. A water passing port is penetrated and opened on the device housing. An installation cavity is opened in the device housing. A water retaining board is embedded and slidably installed in the installation cavity. A driving mechanism is connected to the water retaining board, and the driving mechanism is used to drive the water retaining board to slide in the installation cavity;

[0008] Both sides of the water retaining board are respectively slidably installed in two side grooves. The two side grooves are symmetrically opened on the device housing. Side wall air bags are installed in both of the two side grooves, and the two side wall air bags are respectively in close contact with both sides of the water retaining board.

[0009] By adopting the above technical solution, when the side water stop device of the sluice works, the driving mechanism drives the water baffle to slide in the two side grooves. When water blocking is required, the driving mechanism drives the water baffle to move towards the direction close to the bottom groove. After the two air bags installed in the side grooves are filled, they drive the transmission mechanism to cooperate with the driving mechanism. At the same time, the two air bags installed in the side grooves are closely attached to both sides of the water baffle, improving the tightness of the side water stop device of the sluice, avoiding water flow from flowing downstream from the side when the sluice is closed, and improving the water blocking effect of the gate.

[0010] Optionally, the bottom of the water through hole is communicated with a bottom groove, the bottom groove is opened on the device housing, and a bottom wall air bag closely attached to the inner wall of the bottom groove is installed in the bottom groove. Two communicating pipes are symmetrically communicated on both sides of the bottom wall air bag, and one ends of the two communicating pipes far away from the bottom wall air bag are respectively communicated with the two side wall air bags.

[0011] By adopting the above technical solution, the bottom of the water baffle enters the bottom groove and presses the air bag in the bottom groove, so that the air bag in the bottom groove is closely attached to the bottom of the water baffle. At the same time, the air in the air bag in the bottom groove enters the two air bags installed in the side grooves through the two communicating pipes, so that the air bags in the side grooves are closely attached to the side of the water baffle, improving the tightness of the side water stop device of the sluice, avoiding water flow from flowing downstream from the side when the sluice is closed, and improving the water blocking effect of the gate.

[0012] Optionally, the driving mechanism includes two symmetrically arranged driving motors and driving screws;

[0013] An installation plate is fixedly installed in the device housing, two driving screws are symmetrically arranged on the installation plate, both of the two driving screws penetrate and are threadedly connected to the installation plate, one ends of the two driving screws are respectively connected with driving motors, and both of the two driving motors are fixedly installed in the installation cavity;

[0014] One ends of the two driving screws far away from the driving motors both penetrate and are threadedly connected to the water baffle;

[0015] First straight gears are sleeved and fixedly connected on both of the two driving screws, and the first straight gears are connected with the transmission mechanism.

[0016] By adopting the above technical solution, the two driving motors work to drive the two driving screws to rotate. The two driving screws rotate to drive the water baffle to slide in the two side grooves, realizing the control of the water baffle, and further realizing the control of the water inlet and outlet of the sluice. The transmission mechanism works by the rotation of the first straight gear, ensuring the internal transmission stability of a side water stop device of the sluice.

[0017] Optionally, two pushing mechanisms are symmetrically installed in the installation cavity. Both of the two pushing mechanisms include driven bevel gears, internal thread sleeves, external thread rods, sliding rods and push plates;

[0018] The two inner threaded sleeves are symmetrically and rotatably mounted on the inner wall of the device housing, and driven bevel gears are sleeved and fixedly mounted on both of the two inner threaded sleeves. Both of the two driven bevel gears are connected to a transmission mechanism;

[0019] One end of each of the two inner threaded sleeves away from the inner wall of the device housing penetrates and is threadedly connected to an outer threaded sleeve rod. One end of each of the two outer threaded sleeve rods away from the inner threaded sleeve is fixedly connected to a sliding rod. One end of the sliding rod away from the outer threaded sleeve rod penetrates and is slidably mounted on the side wall of the side groove. A push plate is fixedly connected to one end of the sliding rod arranged in the side groove, and the push plate abuts against the side of the side wall airbag away from the water baffle.

[0020] By adopting the above technical solution, while the driving bevel gear rotates, it drives the driven bevel gear to rotate. The rotation of the driven bevel gear drives the inner threaded sleeve to rotate, and the rotation of the inner threaded sleeve drives the outer threaded sleeve to move. When the inner threaded sleeve rotates forward, the outer threaded sleeve moves away from the inner threaded sleeve, thereby driving the push plate to move away from the inner threaded sleeve and pushing the airbag arranged in the side groove. When the inner threaded sleeve rotates reversely, the outer threaded sleeve moves towards the inner threaded sleeve, thereby driving the push plate to move towards the inner threaded sleeve and away from the airbag arranged in the side groove, enabling the two airbags arranged in the side groove to further closely fit the side of the water baffle, improving the tightness of the side water stop device of the sluice, preventing water from flowing from the side to the downstream when the sluice is closed, and improving the water retaining effect of the gate.

[0021] Optionally, both of the two transmission mechanisms include a second straight gear, a third straight gear, a driving bevel gear, a first rotating shaft, and a second rotating shaft;

[0022] The two first rotating shafts penetrate and are rotatably connected to the mounting plate. The two first rotating shafts are slidably and symmetrically arranged on the mounting plate. Second straight gears are sleeved and fixedly connected to both of the two first rotating shafts, and the two second straight gears are respectively meshed and connected to the two first straight gears;

[0023] Third straight gears are meshed and connected to the sides of the two second straight gears away from the first straight gears. The two third straight gears are respectively sleeved and fixedly connected to the second rotating shafts. The two second rotating shafts are symmetrically arranged on the mounting plate;

[0024] The two second rotating shafts penetrate and are rotatably connected to the mounting plate. Driving bevel gears are sleeved and fixedly connected to the ends of the two second rotating shafts away from the third straight gears. The two driving bevel gears are respectively meshed with the two driven bevel gears.

[0025] By adopting the above technical solution, the rotation of the first spur gear drives the rotation of the second spur gear, the rotation of the second spur gear drives the rotation of the third spur gear, the rotation of the third spur gear further drives the rotation of the second rotating shaft, the rotation of the second rotating shaft drives the rotation of the driving bevel gear, and the driving bevel gear rotates and drives the pushing mechanism to work, realizing the mechanical transmission inside a water gate side water stop device.

[0026] Optionally, abutting plates are rotatably connected to the ends of the two first rotating shafts far from the second spur gear, and the two abutting plates are respectively slidably arranged in the two side grooves;

[0027] One ends of the two abutting plates far from the first rotating shaft are respectively abutted against the two side wall air bags.

[0028] By adopting the above technical solution, when the two air bags installed in the side grooves are filled, the two transmission mechanisms start to work. After the two air bags installed in the side grooves are filled, they respectively push the two abutting plates to move towards the installation plate. The movement of the abutting plates drives the first rotating shafts to move away from the air bags installed in the side grooves. The movement of the two first rotating shafts further drives the second spur gear to move away from the installation plate and mesh with the first spur gear and the third spur gear, ensuring the normal operation of the transmission mechanism.

[0029] Optionally, reset springs are fixedly connected to the ends of the two abutting plates far from the side wall air bags, and the ends of the two reset springs far from the abutting plates are fixedly connected to the installation plate;

[0030] The two reset springs are respectively sleeved on the two first rotating shafts.

[0031] By adopting the above technical solution, when the two air bags installed in the side grooves no longer apply a thrust to the abutting plates towards the installation plate, the reset springs return to their original lengths, driving the abutting plates to move away from the installation plate. The movement of the abutting plates drives the first rotating shafts to move towards the air bags installed in the side grooves, and further drives the second spur gear to stop meshing with the first spur gear and the third spur gear and enter the installation groove. At the same time, the third spur gear stops rotating, and then the second rotating shaft stops rotating, and the driving bevel gear stops rotating, causing the pushing mechanism to stop working.

[0032] Optionally, two installation grooves are symmetrically formed at one end of the installation plate far from the abutting plate.

[0033] By adopting the above technical solution, the formation of the installation grooves facilitates the second spur gear to enter the installation grooves, avoiding the second spur gear always meshing with the first spur gear and the third spur gear.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. When the side water stop device of the sluice works, the driving mechanism drives the water retaining plate to slide in the two side grooves. When water blocking is required, the driving mechanism drives the water retaining plate to move towards the direction close to the bottom groove. After the two air bags installed in the side grooves are filled, they drive the transmission mechanism to cooperate with the driving mechanism. At the same time, the two air bags installed in the side grooves are closely attached to both sides of the water retaining plate, improving the tightness of the side water stop device of the sluice, preventing water from flowing downstream from the side when the sluice is closed, and enhancing the water blocking effect of the gate.

[0036] 2. The bottom of the water retaining plate enters the bottom groove and presses the air bag in the bottom groove, making the air bag in the bottom groove closely attached to the bottom of the water retaining plate. At the same time, the air in the air bag in the bottom groove enters the two air bags installed in the side grooves through the two connecting pipes, making the air bags in the side grooves closely attached to the side of the water retaining plate, improving the tightness of the side water stop device of the sluice, preventing water from flowing downstream from the side when the sluice is closed, and enhancing the water blocking effect of the gate.

[0037] 3. Two driving motors work to drive two driving screws to rotate. The rotation of the two driving screws drives the water retaining plate to slide in the two side grooves, realizing the control of the water retaining plate, and further realizing the control of the water inlet and outlet of the sluice. Through the rotation of the first straight gear, the transmission mechanism is driven to work, ensuring the internal transmission stability of a side water stop device of the sluice. Description of the Drawings

[0038] Figure 1 is the structural schematic diagram of the embodiment of the present application;

[0039] Figure 2 is the internal structural schematic diagram of the embodiment of the present application;

[0040] Figure 3 is the cross-sectional view of the embodiment of the present application;

[0041] Figure 4 is the enlarged view of part A of the embodiment of the present application.

[0042] Description of the Reference Numerals: 1. Device housing; 11. Mounting plate; 12. Mounting groove; 13. Water passing port; 14. Side groove; 15. Bottom groove; 2. Water retaining plate; 3. Air bag; 31. Connecting pipe; 4. Driving mechanism; 41. Driving motor; 42. Driving screw; 43. First straight gear; 5. Transmission mechanism; 51. Abutting plate; 52. First rotating shaft; 53. Second straight gear; 54. Return spring; 55. Second rotating shaft; 56. Third straight gear; 57. Driving bevel gear; 6. Pushing mechanism; 61. Driven bevel gear; 62. Internal thread sleeve; 63. External thread sleeve; 64. Push plate. Detailed Embodiment

[0043] The following is a further detailed description of the present application in conjunction with the attached Figures 1-4 drawings.

[0044] An embodiment of the present application discloses a side water stop device for a sluice.

[0045] Referring to Figure 1 and Figure 2 As shown in

[0046] and

[0047] Referring to Figure 2 and Figure 3 The side water stop device for a sluice includes a device housing 1 with a cavity formed inside. A water passing port 13 is penetratingly formed in the device housing 1. Side grooves 14 are symmetrically arranged on both sides of the water passing port 13. The water passing port 13 communicates with the two side grooves 14. A bottom groove 15 is communicated with the bottom of the water passing port 13. The two symmetrically arranged side grooves 14 and the bottom groove 15 are perpendicular to each other and on the same horizontal plane. Air bags 3 are fixedly installed in both the side grooves 14 and the bottom groove 15. Both ends of the air bag 3 installed in the bottom groove 15 are symmetrically communicated with communicating pipes 31. One ends of the two communicating pipes 31 far away from the air bag 3 in the bottom groove 15 are respectively communicated with the air bags 3 installed in the two side grooves 14. An installation plate 11 is also fixedly installed in the device housing 1. Two groups of driving mechanisms 4 are symmetrically installed on the installation plate 11. Transmission mechanisms 5 are respectively connected to the two groups of driving mechanisms 4. A pushing mechanism 6 is connected to the transmission mechanism 5. The pushing mechanism 6 is respectively connected to the air bags 3 installed in the two side grooves 14. Two installation grooves 12 are symmetrically formed on the installation plate 11. A water blocking plate 2 is slidably connected in the two side grooves 14. The water blocking plate 2 is in close contact with the two air bags 3 installed in the side grooves 14 and the water blocking plate 2 is connected to the two driving mechanisms 4. When the side water stop device for a sluice works, the driving mechanism 4 works to drive the water blocking plate 2 to slide in the two side grooves 14. When water blocking is required, the driving mechanism 4 works to drive the water blocking plate 2 to move towards the direction close to the bottom groove 15. The bottom of the water blocking plate 2 enters the bottom groove 15 and presses the air bag 3 in the bottom groove 15, so that the air bag 3 in the bottom groove 15 is in close contact with the bottom of the water blocking plate 2. At the same time, the air in the air bag 3 in the bottom groove 15 enters the air bags 3 installed in the two side grooves 14 through the two communicating pipes 31. After the two air bags 3 installed in the side grooves 14 are filled, they drive the transmission mechanism 5 to cooperate with the driving mechanism 4. At the same time, the two air bags 3 installed in the side grooves 14 are in close contact with both sides of the water blocking plate 2. Then the driving mechanism 4 works to drive the transmission mechanism 5 to work. The transmission mechanism 5 works to drive the pushing mechanism 6 to work. The driving mechanism 4 works to further push the two air bags 3 installed in the side grooves 14 to move towards the direction close to the water blocking plate 2, so that the two air bags 3 installed in the side grooves 14 are further in close contact with the side of the water blocking plate 2, improving the tightness of the side water stop device for a sluice and avoiding water flowing from the side to the downstream when the sluice is closed, and improving the water blocking effect of the gate., both groups of driving mechanisms 4 include driving motors 41. The two driving motors 41 are symmetrically and fixedly installed in the cavity of the device housing 1. Driving screws 42 are fixedly connected to the output ends of the two driving motors 41. The two driving screws 42 are symmetrically inserted through the mounting plate 11 and are rotatably connected to the mounting plate 11. The ends of the two driving screws 42 far from the driving motors 41 are inserted through and threadedly connected to the water baffle 2. First straight gears 43 are inserted through and fixedly connected to the two driving screws 42, and the two first straight gears 43 are both arranged on the side of the mounting plate 11 close to the driving motor 41. Transmission mechanisms 5 are connected to the two first straight gears 43.

[0048] When the driving mechanism 4 works, the two driving motors 41 work to drive the two driving screws 42 to rotate. The rotation of the two driving screws 42 drives the water baffle 2 to slide in the two side grooves 14. When the water baffle 2 is needed to block water, the two driving motors 41 both run forward. The forward running of the two driving motors 41 drives the two driving screws 42 to rotate clockwise. While the two driving screws 42 rotate clockwise, they drive the first straight gears 43 to rotate clockwise and drive the water baffle 2 to move towards the bottom groove 15. When water needs to be drained, the two driving motors 41 both run reversely. The reverse running of the two driving motors 41 drives the two driving screws 42 to rotate counterclockwise. While the two driving screws 42 rotate counterclockwise, they drive the first straight gears 43 to rotate counterclockwise and drive the water baffle 2 to move towards the bottom groove 15. The rotation of the first straight gears 43 further drives the transmission mechanism 5 to work.

[0049] Refer to Figure 2 , Figure 3 and Figure 4, both transmission mechanisms 5 include a first rotating shaft 52. The two first rotating shafts 52 are symmetrically arranged on the mounting plate 11. The first rotating shaft 52 is rotatably and slidably connected to the mounting plate 11. One ends of the two first rotating shafts 52 are arranged in the mounting groove 12. A second straight gear 53 is fixedly connected to the first rotating shaft 52 arranged in the mounting groove 12. The tooth profile of the second straight gear 53 is matched with the tooth profile of the first straight gear 43. The second straight gear 53 is slidably arranged in the mounting groove 12. One end of the first rotating shaft 52 away from the second straight gear 53 is rotatably connected with an abutting plate 51. A return spring 54 is fixedly connected to the abutting plate 51. The return spring 54 is sleeved on the first rotating shaft 52. One end of the return spring 54 is fixedly connected to the abutting plate 51, and the other end of the return spring 54 is fixedly connected to the mounting plate 11. One end of the abutting plate 51 away from the return spring 54 abuts against the airbag 3 installed in the side groove 14. The two transmission mechanisms 5 further include a second rotating shaft 55. The two second rotating shafts 55 are symmetrically arranged on the mounting plate 11. The second rotating shaft 55 is rotatably connected to the mounting plate 11. A third straight gear 56 is sleeved and fixedly connected to one end of the two second rotating shafts 55 close to the mounting plate 11. The tooth profile of the third straight gear 56 is matched with the tooth profile of the second straight gear 53. A driving bevel gear 57 is sleeved and fixedly connected to one end of the second rotating shaft 55 away from the third straight gear 56. The driving bevel gear 57 is connected to the pushing mechanism 6.

[0050] When the two air bags 3 installed in the side grooves 14 are filled, the two transmission mechanisms 5 start to work. After the two air bags 3 installed in the side grooves 14 are filled, they respectively push the two abutting plates 51 to move towards the mounting plate 11 and compress the return spring 54. The movement of the abutting plate 51 drives the first rotating shaft 52 to move away from the air bag 3 installed in the side groove 14. The movement of the two first rotating shafts 52 then drives the second spur gear 53 to move away from the mounting plate 11 and mesh with the first spur gear 43 and the third spur gear 56. After that, the rotation of the first spur gear 43 drives the rotation of the second spur gear 53, the rotation of the second spur gear 53 drives the rotation of the third spur gear 56, and the rotation of the third spur gear 56 then drives the rotation of the second rotating shaft 55. The rotation of the second rotating shaft 55 drives the rotation of the driving bevel gear 57, and the rotation of the driving bevel gear 57 drives the working of the pushing mechanism 6, realizing the mechanical transmission inside a side water stop device of a sluice. When the water retaining plate 2 moves away from the bottom groove 15, the cavities in the two air bags 3 installed in the side grooves 14 flow towards the air bags 3 installed in the bottom groove 15. The two air bags 3 installed in the side grooves 14 no longer apply a thrust force to the abutting plate 51 towards the mounting plate 11. At this time, the return spring 54 returns to its original length, driving the abutting plate 51 to move away from the mounting plate 11. The movement of the abutting plate 51 drives the first rotating shaft 52 to move towards the air bag 3 installed in the side groove 14, thereby driving the second spur gear 53 to stop meshing with the first spur gear 43 and the third spur gear 56 and enter the installation groove 12. At the same time, the third spur gear 56 stops rotating, then the second rotating shaft 55 stops rotating, and the driving bevel gear 57 stops rotating, causing the pushing mechanism 6 to stop working.

[0051] Refer to Figure 2 , Figure 3 and Figure 4 , the two pushing mechanisms 6 both include driven bevel gears 61. The two driven bevel gears 61 are respectively meshed with the two driving bevel gears 57. The two driven bevel gears 61 are respectively sleeved and fixedly connected to the internal thread sleeves 62. One end of the internal thread sleeve 62 is rotatably installed on the inner wall of the device housing 1. The end of the internal thread sleeve 62 away from the inner wall of the device housing 1 is threadedly connected with an external thread sleeve 63. The end of the external thread sleeve 63 away from the internal thread sleeve 62 passes through and is slidably connected to the side wall of the side groove 14, and the external thread sleeve 63 does not rotate relative to the side wall of the side groove 14. A push plate 64 is fixedly installed on one end of the external thread sleeve 63 arranged in the side groove 14, and the push plate 64 abuts against the air bag 3 in the side groove 14.

[0052] While the driving bevel gear 57 rotates, it drives the driven bevel gear 61 to rotate. The rotation of the driven bevel gear 61 then drives the internal thread sleeve 62 to rotate. The rotation of the internal thread sleeve 62 then drives the external thread sleeve 63 to move. When the internal thread sleeve 62 rotates forward, the external thread sleeve 63 moves away from the internal thread sleeve 62, thereby driving the push plate 64 to move away from the internal thread sleeve 62 and pushing the airbag 3 installed in the side groove 14. When the internal thread sleeve 62 rotates in the reverse direction, the external thread sleeve 63 moves closer to the internal thread sleeve 62, thereby driving the push plate 64 to move closer to the internal thread sleeve 62 and away from the airbag 3 installed in the side groove 14.

[0053] The implementation principle of a side water stop device for a sluice in an embodiment of the present application is as follows: The driving mechanism 4 operates to drive the water retaining plate 2 to slide in the two side grooves 14. When water retaining is required, the driving mechanism 4 operates to drive the water retaining plate 2 to move towards the bottom groove 15. The bottom of the water retaining plate 2 enters the bottom groove 15 and presses the airbag 3 in the bottom groove 15, causing the airbag 3 in the bottom groove 15 to closely fit with the bottom of the water retaining plate 2. At the same time, the air in the airbag 3 in the bottom groove 15 enters the two airbags 3 installed in the side grooves 14 through the two communicating pipes 31. After the two airbags 3 installed in the side grooves 14 are filled, they drive the transmission mechanism 5 to cooperate with the driving mechanism 4. At the same time, the two airbags 3 installed in the side grooves 14 closely fit with both sides of the water retaining plate 2. Then the driving mechanism 4 operates to drive the transmission mechanism 5 to operate, and the transmission mechanism 5 operates to drive the pushing mechanism 6 to operate. The driving mechanism 4 operates to further push the two airbags 3 installed in the side grooves 14 towards the water retaining plate 2, so that the two airbags 3 installed in the side grooves 14 further closely fit with the side of the water retaining plate 2, improving the tightness of the side water stop device of the sluice and preventing water from flowing downstream from the side when the sluice is closed, thereby improving the water retaining effect of the gate.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A side water stop device for a sluice, characterized in that: It includes a device housing (1). There is a water passing port (13) penetrating through the device housing (1). An installation cavity is provided inside the device housing (1). A water blocking plate (2) is embedded and slidably installed in the installation cavity. A driving mechanism (4) is connected to the water blocking plate (2), and the driving mechanism (4) is used to drive the water blocking plate (2) to slide in the installation cavity. Both sides of the water blocking plate (2) are slidably installed in two side grooves (14) respectively. The two side grooves (14) are symmetrically arranged on the device housing (1). Side wall air bags (3) are installed in both of the two side grooves (14), and the two side wall air bags (3) are closely attached to both sides of the water blocking plate (2) respectively. The driving mechanism (4) includes two symmetrically arranged driving motors (41) and driving screws (42). An installation plate (11) is fixedly installed inside the device housing (1). Two driving screws (42) are symmetrically arranged on the installation plate (11). Both of the two driving screws (42) penetrate through and are threadedly connected to the installation plate (11). One end of each of the two driving screws (42) is connected to a driving motor (41) respectively, and the two driving motors (41) are both fixedly installed in the installation cavity. One end of each of the two driving screws (42) away from the driving motor (41) penetrates through and is threadedly connected to the water blocking plate (2). First straight gears (43) are sleeved and fixedly connected to both of the two driving screws (42), and the first straight gears (43) are connected to a transmission mechanism (5). Two pushing mechanisms (6) are symmetrically installed in the installation cavity. Both of the two pushing mechanisms (6) include driven bevel gears (61), internal thread sleeves (62), external thread sleeve rods, sliding rods and push plates (64). The two internal thread sleeves (62) are symmetrically and rotatably installed on the inner wall of the device housing (1). Driven bevel gears (61) are sleeved and fixedly installed on both of the two internal thread sleeves (62), and the two driven bevel gears (61) are both connected to the transmission mechanism (5). One end of each of the two external thread sleeve rods away from the inner wall of the device housing (1) penetrates through and is threadedly connected to an external thread sleeve rod. One end of each of the two external thread sleeve rods away from the internal thread sleeve (62) is fixedly connected to a sliding rod. One end of the sliding rod away from the external thread sleeve rod penetrates through and is slidably installed on the wall of the side groove (14). A push plate (64) is fixedly connected to one end of the sliding rod arranged in the side groove (14), and the push plate (64) abuts against the side of the side wall air bag (3) away from the water blocking plate (2).

2. The side water stop device of the sluice according to claim 1, characterized in that: The bottom of the water passing port (13) is communicated with a bottom groove (15). The bottom groove (15) is arranged on the device housing (1). A bottom wall air bag (3) that is closely attached to the inner wall of the bottom groove (15) is installed in the bottom groove (15). Two communicating pipes (31) are symmetrically communicated with both sides of the bottom wall air bag (3), and one end of each of the two communicating pipes (31) away from the bottom wall air bag (3) is communicated with one of the two side wall air bags (3) respectively.

3. The side water stop device of the sluice according to claim 1, characterized in that: Both of the two transmission mechanisms (5) include a second spur gear (53), a third spur gear (56), a driving bevel gear (57), a first rotating shaft (52), and a second rotating shaft (55); The two first rotating shafts (52) are inserted through and rotatably connected to the mounting plate (11). The two first rotating shafts (52) are slidably and symmetrically arranged on the mounting plate (11). A second spur gear (53) is sleeved on and fixedly connected to each of the two first rotating shafts (52). The two second spur gears (53) are respectively meshed with the two first spur gears (43); A third spur gear (56) is meshed with each of the two second spur gears (53) on the side away from the first spur gear (43). The two third spur gears (56) are respectively sleeved on and fixedly connected to the second rotating shafts (55). The two second rotating shafts (55) are symmetrically arranged on the mounting plate (11); The two second rotating shafts (55) are inserted through and rotatably connected to the mounting plate (11). A driving bevel gear (57) is sleeved on and fixedly connected to each of the two second rotating shafts (55) at the end away from the third spur gear (56). The two driving bevel gears (57) are respectively meshed with the two driven bevel gears (61).

4. The side water stop device of the sluice according to claim 3, characterized in that: A contact plate (51) is rotatably connected to each of the two first rotating shafts (52) at the end away from the second spur gear (53). The two contact plates (51) are respectively slidably arranged in the two side grooves (14); One end of each of the two contact plates (51) away from the first rotating shaft (52) is in contact with each of the two side wall air bags (3).

5. The side water stop device of the sluice according to claim 4, characterized in that: A return spring (54) is fixedly connected to each of the two contact plates (51) at the end away from the side wall air bag (3). One end of each of the two return springs (54) away from the contact plate (51) is fixedly connected to the mounting plate (11); The two return springs (54) are respectively sleeved on the two first rotating shafts (52).

6. The side water stop device for a sluice according to claim 5, wherein: Two mounting grooves (12) are symmetrically formed at one end of the mounting plate (11) away from the contact plate (51).

7. The side water stop device of the sluice according to claim 2, characterized in that: Both the side wall air bag (3) and the bottom wall air bag (3) are made of elastic and waterproof materials.

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