Fixing and limiting device for water pumping opening of water intake pumping station

Abstract

The invention discloses a fixing and limiting device for a water pumping opening of a water intake pumping station, relates to the technical field of water conservancy projects, and aims to solve the technical problem that normal flowing of water flow is affected due to the fact that a traditional net-shaped filtering structure can generate precipitation and blockage phenomena in long-time use. The top of the base pipeline is fixedly connected with a water inlet pipe through a first bolt. An umbrella-shaped mechanical structure is innovatively adopted, impurities in water are filtered by means of the driving unit, and vortex flow is ingeniously utilized to perform dust removal operation on the surface of the umbrella-shaped structure; meanwhile, the vibration module applies vibration to the umbrella-shaped structure, the blocking phenomenon of the umbrella-shaped filtering structure caused by precipitation is effectively avoided, and normal passing of water flow is ensured; in addition, through scientific and reasonable mechanical design of the fixing assembly, the device is practically prevented from shaking in water, the device is kept stable in a complex water environment, the device has excellent performance in the aspects of dust removal, impurity removal and device fixing, and the stability and reliability of the device are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy engineering, and more specifically to a fixed limiting device for a water inlet of a water intake pump station. Background Art

[0002] The fixed limit device of the water intake pump station is a vital auxiliary equipment in the water intake pump station system, which is designed to ensure the stability and reliability of the water intake inlet in various complex environments. It is mainly used in water intake pump stations, and plays a key role whether it is drawing water from rivers, lakes and reservoirs or groundwater sources.

[0003] At present, in the fixed limit device of the water inlet of the water intake pump station, water filtration is more important. However, the traditional mesh filtration structure will have sedimentation and blockage after long-term use, affecting the normal flow of water and reducing the water intake efficiency. In view of this, we propose a fixed limit device for the water inlet of the water intake pump station. Summary of the invention

[0004] The purpose of the present invention is to provide a fixed limit device for the water inlet of a water intake pump station to solve the technical problem that the traditional mesh filtering structure will have sedimentation and blockage during long-term use, thereby affecting the normal flow of water.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a fixed limit device for a water inlet of a water intake pump station, comprising a base pipe, a water inlet pipe is fixedly connected to the top of the base pipe by a first bolt, a sewage pipe is fixedly connected to the side surface of the water inlet pipe by a first support rod, and a sewage discharge mechanism is fixedly arranged inside the water inlet pipe;

[0006] The sewage discharge mechanism comprises a plurality of movable ports and fixed components, the plurality of movable ports are opened at the top of the water inlet pipe in an annular array, the inner walls on both sides of each of the movable ports are movably connected with a first telescopic rod through a first plug rod, the output ends of the plurality of first telescopic rods are movably connected with an adjustment plate through a second plug rod, the bottom of the adjustment plate is fixedly connected with an articulated frame, a plurality of second telescopic rods are movably connected in an annular array in an upper groove of the articulated frame through a third plug rod, a driving unit is fixedly provided at the bottom of the articulated frame, a threaded disk is movably provided at the bottom of the articulated frame, and the threaded disk is threadably adapted to the driving unit, a plurality of third telescopic rods are movably connected in an annular array in an upper groove of the threaded disk through a fourth plug rod, and the third telescopic rod is movably connected to the second telescopic rod through a hinge frame, and a plurality of the first telescopic rods are movably connected to the second telescopic rod through a hinge frame, A filter cloth is provided on one side of a telescopic rod, a supporting unit is movably provided at the bottom of the threaded disk, a vibration module is fixedly provided on the inner wall at the bottom of the water inlet pipe, and the vibration module is transmission-connected with the driving unit. The present invention innovatively adopts an umbrella-shaped mechanical structure, uses a driving unit to filter impurities in the water, and cleverly uses vortex flow to perform dust removal operations on the surface of the umbrella-shaped structure; at the same time, the vibration module applies vibration to the umbrella-shaped structure, effectively avoiding blockage of the umbrella-shaped filtering structure caused by precipitation, and ensuring the normal passage of water; in addition, the fixing component uses scientific and reasonable mechanical design to effectively prevent the device from shaking in the water, so that the device remains stable in a complex water environment. The present invention excels in dust removal and device fixation, and significantly improves the stability and reliability of the device.

[0007] Preferably, the driving unit includes a first motor, which is fixedly connected to the bottom of the articulated frame, and a transmission rod is fixedly connected to the output end of the first motor, and the transmission rod passes through a threaded disk, and a bidirectional threaded barrel is movably sleeved on the side surface of the transmission rod, and the bidirectional threaded barrel is threadably adapted to the threaded disk, and the inner walls on both sides of the transmission rod are in an annular array and are movably connected to a plurality of pawls through a fourth plug rod, and the inner wall of the bidirectional threaded barrel is in an annular array and is fixedly connected to a plurality of ratchets, and the ratchets are meshingly connected to the pawls.

[0008] Preferably, the supporting unit includes a column, which is movably connected to the bottom of the threaded disk and movably sleeved on the side surface of the bidirectional threaded cylinder. A plurality of first support rods are movably connected in an annular array in the upper groove of the column through a first pin, and one end of the first support rod is movably sleeved on the side surface of the third telescopic rod. A plurality of second support rods are fixedly connected to the inner wall of the bottom of the water inlet pipe in an annular array through second bolts. The tops of the plurality of second support rods are movably connected to a bottom plate through second pins, and the bottom plate is fixedly connected to the column.

[0009] Preferably, the vibration module comprises a vibration ring, the vibration ring is fixedly connected to the inner wall of the bottom of the water inlet pipe, and the upper surface of the vibration ring is a wavy annular curved surface, and the bottom of the transmission rod is fixedly connected to a driving plate.

[0010] Preferably, a plurality of movable rods are movably connected in a circular array in the upper groove of the transmission rod through a third pin, and one end of the plurality of movable rods is movably connected to a roller through a fourth pin, and the roller is in rolling contact with the wavy annular surface, and a stop block is fixedly connected to the bottom of the transmission rod, and the bottom of the stop block is in movably contact with the top of the movable rod. The present invention drives the vibration module by arranging a driving unit to make the roller roll on the upper surface of the wavy annular surface, thereby generating vibration, applying a force to the umbrella-like structure to avoid blockage caused by precipitation of particles, and applying a supporting force to the umbrella-like structure through the supporting unit to avoid the inflow of vortex flow and affecting the stability of the umbrella-like structure.

[0011] Preferably, a transmission blade is fixedly connected to the top of each movable rod.

[0012] Preferably, the fixing assembly includes a fixing ring, which is fixedly sleeved on the end surface of the water inlet pipe, and a support ring is fixedly sleeved on the end surface of the sewage pipe. A plurality of first movable rings are movably connected to the hole on the fixing ring through a fifth pin, and a second movable ring is movably connected to the inner wall of the first movable ring through a sixth pin.

[0013] Preferably, a plurality of third movable rings are movably connected to the upper hole of the support ring via a seventh pin, a fourth movable ring is movably connected to the inner wall of the third movable ring via an eighth pin, and a first fixing rod is fixedly sleeved inside each of the plurality of second movable rings.

[0014] Preferably, a second fixed rod is fixedly sleeved inside several of the fourth movable rings, and the bottom of each of the first and second fixed rods is movably connected to a connecting frame through a ninth pin, and a pin is fixedly connected to the bottom of each connecting frame, and a plurality of inclined pillars are fixedly connected to the side of the fixed ring opposite to the sewage pipe in a circular array.

[0015] Preferably, a sewage outlet is provided between the sewage pipe and the water inlet pipe, and a plurality of inclined plates are fixedly connected to the top of the sewage pipe in a circular array, and a corridor is provided between two adjacent inclined plates. The present invention arranges a fixing component, wherein the inclined support column is in an opposite direction to the inclination direction of the second fixed rod, and while applying a force to the pipeline, a pulling force is applied to the pipeline through the inclined support column, thereby significantly improving the stability of the device.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention innovatively adopts an umbrella-shaped mechanical structure, uses a driving unit to filter impurities in the water, and cleverly uses vortex flow to perform dust removal operations on the surface of the umbrella-shaped structure; at the same time, the vibration module applies vibration to the umbrella-shaped structure, effectively avoiding the blockage of the umbrella-shaped filtering structure caused by precipitation, and ensuring the normal passage of water; in addition, the fixing component uses scientific and reasonable mechanical design to effectively prevent the device from shaking in the water, so that the device remains stable in a complex water environment. The present invention performs excellently in dust removal and device fixation, and significantly improves the stability and reliability of the device.

[0018] 2. The present invention sets a driving unit to drive the vibration module, so that the roller rolls on the upper surface of the wavy annular surface to generate vibration, exerting force on the umbrella-like structure to prevent particle precipitation and blockage, and exerting supporting force on the umbrella-like structure through the supporting unit to prevent vortex flow from flowing in and affecting the stability of the umbrella-like structure.

[0019] 3. The present invention provides a fixing assembly, wherein the inclined support and the second fixing rod are inclined in opposite directions. While applying a force to the pipeline, the inclined support applies a pulling force to the pipeline, thereby significantly improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 The three-dimensional local structure cross section of the present invention is shown Figure 1 ;

[0023] Figure 4 The three-dimensional local structure cross section of the present invention is shown Figure 2 ;

[0024] Figure 5 It is a three-dimensional partial enlarged structural schematic diagram of the sewage discharge mechanism of the present invention;

[0025] Figure 6 It is a three-dimensional enlarged structural schematic diagram of the support unit of the present invention;

[0026] Figure 7 It is a schematic diagram of a three-dimensional exploded structure of a driving unit of the present invention;

[0027] Figure 8 It is a schematic diagram of a three-dimensional partial structure of the present invention;

[0028] Fig. 9 For the present invention Figure 8 A is an enlarged structural diagram;

[0029] Fig.10 For the present invention Figure 8 The enlarged structural diagram at B in FIG.

[0030] Explanation of the reference numerals in the figure: 1. base pipe; 2. water inlet pipe; 3. sewage pipe; 301. inclined plate; 4. sewage discharge mechanism; 401. movable port; 402. first telescopic rod; 403. adjusting plate; 404. hinged frame; 405. second telescopic rod; 406. threaded plate; 407. third telescopic rod; 408. articulated frame; 409. filter cloth; 5. fixing assembly; 501. fixing ring; 502. supporting ring; 503. first movable ring; 504. second movable ring; 505. third movable ring; 506. fourth movable ring; 507, first fixing rod; 508, second fixing rod; 509, connecting frame; 510, pin; 511, tilting pillar; 6, driving unit; 601, first motor; 602, transmission rod; 603, two-way threaded cylinder; 604, pawl; 605, ratchet; 7, supporting unit; 701, pillar; 702, first supporting rod; 703, second supporting rod; 704, bottom plate; 8, vibration module; 801, vibration ring; 802, driving plate; 803, movable rod; 803a, transmission blade; 804, roller. DETAILED DESCRIPTION

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention relates to a fixed limit device for a water inlet of a water intake pump station, comprising a base pipe 1, a water inlet pipe 2 is fixedly connected to the top of the base pipe 1 by a first bolt, a sewage pipe 3 is fixedly connected to the side surface of the water inlet pipe 2 by a first support rod, and a sewage discharge mechanism 4 is fixedly arranged inside the water inlet pipe 2;

[0032] The sewage discharge mechanism 4 includes a plurality of movable ports 401 and a fixed component 5. The plurality of movable ports 401 are arranged in a circular array at the top of the water inlet pipe 2. The inner walls on both sides of each movable port 401 are movably connected to a first telescopic rod 402 through a first plug rod. The output ends of the plurality of first telescopic rods 402 are movably connected to an adjustment plate 403 through a second plug rod. The bottom of the adjustment plate 403 is fixedly connected to an articulated frame 404. A plurality of second telescopic rods 405 are movably connected in a circular array in the upper groove of the articulated frame 404 through a third plug rod. A driving unit 6 is fixedly arranged at the bottom of the articulated frame 404. A threaded disk 406 is movably arranged at the bottom of the articulated frame 404, and the threaded disk 406 is threadably adapted to the driving unit 6. A plurality of third telescopic rods 407 are movably connected in a circular array in the upper groove of the threaded disk 406 through a fourth plug rod. The third telescopic rod 407 and the second telescopic rod 405 are connected to each other. Through the movable connection of the articulated frame 408, a filter cloth 409 is commonly provided on one side of the plurality of first telescopic rods 402, a support unit 7 is movably provided at the bottom of the threaded disk 406, a vibration module 8 is fixedly provided on the inner wall at the bottom of the water inlet pipe 2, and the vibration module 8 is transmission-connected with the driving unit 6. The present invention innovatively adopts an umbrella-shaped mechanical structure, and uses the driving unit 6 to filter impurities in the water, and cleverly uses the vortex flow to perform dust removal operations on the surface of the umbrella-shaped structure; at the same time, the vibration module 8 applies vibration to the umbrella-shaped structure, effectively avoiding the blockage of the umbrella-shaped filtering structure caused by precipitation, and ensuring the normal passage of water; in addition, the fixing component 5 uses a scientific and reasonable mechanical design to effectively prevent the device from shaking in the water, so that the device remains stable in a complex water environment. The present invention performs excellently in dust removal and device fixation, and significantly improves the stability and reliability of the device.

[0033] In an embodiment of the present invention, Figure 7 As shown, the driving unit 6 includes a first motor 601, which is fixedly connected to the bottom of the articulated frame 404, and a transmission rod 602 is fixedly connected to the output end of the first motor 601, and the transmission rod 602 passes through the threaded disk 406, and a bidirectional threaded cylinder 603 is movably sleeved on the side surface of the transmission rod 602, and the bidirectional threaded cylinder 603 is threadably adapted to the threaded disk 406, and the inner walls on both sides of the transmission rod 602 are in a circular array and are movably connected to a plurality of pawls 604 through a fourth plug rod, and the inner wall of the bidirectional threaded cylinder 603 is in a circular array and is fixedly connected to a plurality of ratchet teeth 605, and the ratchet teeth 605 are meshingly connected to the pawls 604.

[0034] In an embodiment of the present invention, Figure 6As shown, the support unit 7 includes a column 701, which is movably connected to the bottom of the threaded disk 406, and the column 701 is movably sleeved on the side surface of the bidirectional threaded cylinder 603. A plurality of first support rods 702 are movably connected in an annular array in the upper groove of the column 701 through a first latch, and one end of the first support rod 702 is movably sleeved on the side surface of the third telescopic rod 407. A plurality of second support rods 703 are fixedly connected to the inner wall of the bottom of the water inlet pipe 2 in an annular array through a second bolt, and a bottom plate 704 is movably connected to the top of the plurality of second support rods 703 through a second latch, and the bottom plate 704 is fixedly connected to the column 701. During long-term use, the first motor 601 is operated through an external circuit mechanism, and the first motor 601 drives the transmission rod 602 to rotate, and the bidirectional threaded cylinder 603 is rotated through a unidirectional rotation structure. Since the bidirectional threaded cylinder 603 is threadedly connected to the threaded disk 406, the articulated frame 404 is rotated. The second telescopic rod 405 and the third telescopic rod 407 are rotated and extended, wherein the second support rod 703 is fixed to the inner wall of the water inlet pipe 2, which has a fixing effect on the threaded disk 406, and when the third telescopic rod 407 is extended and rotated, one end of the first support rod 702 slides on the third telescopic rod 407 to support it, so as to prevent the third telescopic rod 407 from losing its supporting effect due to excessive water pressure, thereby affecting the impurity removal effect of the device. The hinged frame 404 moves upward, and the first telescopic rod 402 contracts and rotates until the filter cloth 409 is in an umbrella-shaped structure. When the umbrella-shaped structure is supported, water flows from the sewage pipe 3 into the interior thereof, and the water flows through the corridor between the two adjacent inclined plates 301, so that the water flows downward in a spiral shape, and the surface of the umbrella-shaped structure is impurity-removed by the spirally flowing water, and the particulate matter is discharged into the inner wall of the sewage pipe 3 and flows out from the corridor between the sewage pipe 3 and the water inlet pipe 2.

[0035] As another embodiment of the present invention, Figure 4 and Figure 7As shown, the vibration module 8 includes a vibration ring 801, which is fixedly connected to the inner wall at the bottom of the water inlet pipe 2, and the upper surface of the vibration ring 801 is a wavy annular curved surface. The bottom of the transmission rod 602 is fixedly connected to a driving plate 802, and a plurality of movable rods 803 are movably connected to the upper groove of the transmission rod 602 in an annular array through a third latch, and one end of the plurality of movable rods 803 is movably connected to a roller 804 through a fourth latch, and the roller 804 is in rolling contact with the wavy annular curved surface, and a stop block 805 is fixedly connected to the bottom of the transmission rod 602, and the bottom of the stop block 805 is in movably contact with the top of the movable rod 803, and each movable rod 803 is fixedly connected to a transmission blade 803a at the top. The present invention drives the vibration module 8 by setting a driving unit 6 to make the roller 804 roll on the upper surface of the wavy annular curved surface, thereby generating vibration, exerting a force on the umbrella-shaped structure, and avoiding To prevent the clogging caused by the precipitation of particles, a supporting force is applied to the umbrella-shaped structure through the supporting unit 7 to prevent the inflow of vortex flow and affect the stability of the umbrella-shaped structure. When pumping water, the water flows from the sewage pipe 3 into the water inlet pipe 2, and the water flows through the filter cloth 409, blocking the sand and other particles therein inside the filter cloth 409, and when passing through the external circuit mechanism, the first motor 601 works, and the first motor 601 drives the transmission rod 602 to rotate, and through the meshing state of the pawl 604 and the ratchet 605, a unidirectional rotation structure is formed, so that the transmission rod 602 rotates to drive the driving plate 802, and the roller 804 rolls on the surface of the vibration ring 801 to generate shaking, and the filter cloth 409 is vibrated to prevent the clogging caused by the precipitation of particles and affect the flow of water. In the process of the angular rotation of the movable rod 803, the range of the angular rotation of the movable rod 803 is shortened by the stop block 805.

[0036] As another embodiment of the present invention, Figure 8 , Fig. 9 and Fig.10As shown, the fixing assembly 5 includes a fixing ring 501, which is fixedly sleeved on the end surface of the water inlet pipe 2, and a supporting ring 502 is fixedly sleeved on the end surface of the sewage pipe 3. A plurality of first movable rings 503 are movably connected to the hole of the fixing ring 501 through a fifth latch, and a second movable ring 504 is movably connected to the inner wall of the first movable ring 503 through a sixth latch, and a plurality of third movable rings 505 are movably connected to the hole of the support ring 502 through a seventh latch, and a fourth movable ring 506 is movably connected to the inner wall of the third movable ring 505 through an eighth latch, and a first fixing rod 507 is fixedly sleeved inside the plurality of second movable rings 504, and a second fixing rod 508 is fixedly sleeved inside the plurality of fourth movable rings 506, and each first fixing rod 507 and the bottom of the second fixing rod 508 are movably connected to a connecting frame 509 through a ninth latch, and each A pin 510 is fixedly connected to the bottom of the connecting frame 509, and a plurality of inclined pillars 511 are fixedly connected to the opposite side of the fixing ring 501 to the sewage pipe 3 in a circular array. During installation, concrete is poured in advance on the bottom of the water, the base pipe 1 is fixedly placed in the concrete, and then the first fixing rod 507 and the second fixing rod 508 are adjusted, and the pin 510 is inserted on the ground. At the same time, during use, since the inclined pillar 511 is inclined in the opposite direction to the second fixing rod 508, the device is supported to prevent the pipe from being affected by the flow of water in the water, causing the device to shake. The present invention sets a fixing component 5, wherein the inclined pillar 511 is inclined in the opposite direction to the second fixing rod 508, and while applying a force to the pipe, a pulling force is applied to the pipe through the inclined pillar 511, thereby significantly improving the stability of the device.

[0037] As another embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, a sewage outlet is provided between the sewage pipe 3 and the water inlet pipe 2, a plurality of inclined plates 301 are fixedly connected to the top of the sewage pipe 3 in a circular array, and corridors are provided between two adjacent inclined plates 301.

[0038] Working principle: This embodiment provides a fixed limit device for the water inlet of a water intake pump station. During installation, concrete is poured in advance on the bottom of the water, the base pipe 1 is fixedly placed in the concrete, and then the first fixing rod 507 and the second fixing rod 508 are adjusted, and the pin 510 is inserted on the ground. At the same time, during use, since the inclined support 511 is inclined in the opposite direction to the second fixing rod 508, the device is supported to prevent the pipe from being affected by the flow of water in the water, causing the device to shake, etc. When pumping water, the water flows from the sewage pipe 3 into the water inlet pipe 2, and the water flows through the filter cloth 409, When the sand and other particles are blocked inside the filter cloth 409 and pass through the external circuit mechanism, the first motor 601 works, the first motor 601 drives the transmission rod 602 to rotate, and the pawl 604 is engaged with the ratchet 605 to form a unidirectional rotation structure, so that the transmission rod 602 rotates to drive the driving plate 802, and the roller 804 rolls on the surface of the vibration ring 801 to generate shaking, and vibrates the filter cloth 409 to avoid particle precipitation and blockage, which affects the flow of water. In the process of angular rotation of the movable rod 803, the range of angular rotation of the movable rod 803 is shortened by the stop block 805. During use, the first motor 601 is operated through the external circuit mechanism, and the first motor 601 drives the transmission rod 602 to rotate, and the bidirectional threaded cylinder 603 is rotated through the unidirectional rotation structure. Since the bidirectional threaded cylinder 603 is threadedly connected with the threaded disk 406, the articulated frame 404 moves upward, and the second telescopic rod 405 and the third telescopic rod 407 rotate at an angle and extend, wherein the second support rod 703 is fixed to the inner wall of the water inlet pipe 2, which has a fixing effect on the threaded disk 406, and when the third telescopic rod 407 is extending and rotating, one end of the first support rod 702 is on the third telescopic rod 407. The hinged frame 404 moves upward, and the first telescopic rod 402 contracts and rotates until the filter cloth 409 is in an umbrella-shaped structure. When the umbrella-shaped structure is supported, water flows from the sewage pipe 3 into the interior thereof, and the water flows through the passage between two adjacent inclined plates 301, so that the water flows downward in a spiral shape. The surface of the umbrella-shaped structure is cleaned by the spirally flowing water, and the particulate matter is discharged into the inner wall of the sewage pipe 3 and flows out from the passage between the sewage pipe 3 and the water inlet pipe 2.

[0039] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A fixed limit device for a water inlet of a water intake pump station, characterized in that: It comprises a base pipe (1), the top of the base pipe (1) is fixedly connected to a water inlet pipe (2) via a first bolt, the side surface of the water inlet pipe (2) is fixedly connected to a sewage discharge pipe (3) via a first support rod, and a sewage discharge mechanism (4) is fixedly provided inside the water inlet pipe (2); The sewage discharge mechanism (4) comprises a plurality of movable openings (401) and a fixed assembly (5), wherein the plurality of movable openings (401) are arranged in a circular array at the top of the water inlet pipe (2), and the inner walls on both sides of each movable opening (401) are movably connected to a first telescopic rod (402) via a first plug rod, and the output ends of the plurality of first telescopic rods (402) are movably connected to an adjustment plate (403) via a second plug rod, and the bottom of the adjustment plate (403) is fixedly connected to an articulated frame (404), and a plurality of second telescopic rods (405) are movably connected in a circular array in the upper groove of the articulated frame (404) via a third plug rod, and a driving unit (6) is fixedly provided at the bottom of the articulated frame (404). A threaded disc (406) is movably provided at the bottom of the articulated frame (404), and the threaded disc (406) is threadably adapted to the driving unit (6); a plurality of third telescopic rods (407) are movably connected in a ring array in the upper groove of the threaded disc (406) via a fourth insertion rod, and the third telescopic rods (407) are movably connected to the second telescopic rods (405) via an articulated frame (408); a filter cloth (409) is commonly provided on one side of the plurality of first telescopic rods (402); a support unit (7) is movably provided at the bottom of the threaded disc (406); a vibration module (8) is fixedly provided on the inner wall of the bottom of the water inlet pipe (2), and the vibration module (8) is drivingly connected to the driving unit (6).

2. A fixed limit device for the water inlet of a water intake pump station according to claim 1, characterized in that: The driving unit (6) comprises a first motor (601), the first motor (601) is fixedly connected to the bottom of the hinge frame (404), the output end of the first motor (601) is fixedly connected to a transmission rod (602), and the transmission rod (602) passes through a threaded disk (406), a bidirectional threaded barrel (603) is movably sleeved on the side surface of the transmission rod (602), and the bidirectional threaded barrel (603) is threadably adapted to the threaded disk (406), the inner walls on both sides of the transmission rod (602) are in a ring array and are movably connected to a plurality of ratchet pawls (604) through a fourth insertion rod, the inner wall of the bidirectional threaded barrel (603) is in a ring array and is fixedly connected to a plurality of ratchet teeth (605), and the ratchet teeth (605) are meshingly connected to the ratchet pawls (604).

3. A fixed limit device for the water inlet of a water intake pump station according to claim 2, characterized in that: The support unit (7) comprises a column (701), wherein the column (701) is movably connected to the bottom of the threaded disk (406), and the column (701) is movably sleeved on the side surface of the bidirectional threaded cylinder (603); a plurality of first support rods (702) are movably connected in a circular array in the upper groove of the column (701) through a first latch, and one end of the first support rod (702) is movably sleeved on the side surface of the third telescopic rod (407); a plurality of second support rods (703) are fixedly connected in a circular array to the inner wall of the bottom of the water inlet pipe (2) through a second bolt; the tops of the plurality of second support rods (703) are movably connected to a bottom plate (704) through a second latch, and the bottom plate (704) is fixedly connected to the column (701).

4. A fixed limit device for the water inlet of a water intake pump station according to claim 3, characterized in that: The vibration module (8) comprises a vibration ring (801), the vibration ring (801) is fixedly connected to the inner wall of the bottom of the water inlet pipe (2), and the upper surface of the vibration ring (801) is a wavy annular curved surface, and the bottom of the transmission rod (602) is fixedly connected to a driving plate (802).

5. A fixed limit device for the water inlet of a water intake pump station according to claim 4, characterized in that: A plurality of movable rods (803) are movably connected in a ring array in the upper groove of the transmission rod (602) via a third latch pin, and one end of each of the movable rods (803) is movably connected to a roller (804) via a fourth latch pin, and the roller (804) is in rolling contact with the wavy annular curved surface, and a stop block (805) is fixedly connected to the bottom of the transmission rod (602), and the bottom of the stop block (805) is in movably contact with the top of the movable rod (803).

6. A fixed limit device for the water inlet of a water intake pump station according to claim 5, characterized in that: The top of each movable rod (803) is fixedly connected with a transmission fan blade (803a).

7. A fixed limit device for the water inlet of a water intake pump station according to claim 6, characterized in that: The fixing assembly (5) comprises a fixing ring (501), the fixing ring (501) being fixedly sleeved on the end surface of the water inlet pipe (2), the end surface of the sewage discharge pipe (3) being fixedly sleeved with a supporting ring (502), a plurality of first movable rings (503) being movably connected in the upper hole of the fixing ring (501) via a fifth latch, and a second movable ring (504) being movably connected in the inner wall of the first movable ring (503) via a sixth latch.

8. A fixed limit device for the water inlet of a water intake pump station according to claim 7, characterized in that: A plurality of third movable rings (505) are movably connected to the upper hole of the support ring (502) via a seventh latch, a fourth movable ring (506) is movably connected to the inner wall of the third movable ring (505) via an eighth latch, and a first fixed rod (507) is fixedly sleeved inside each of the plurality of second movable rings (504).

9. A fixed limit device for the water inlet of a water intake pump station according to claim 8, characterized in that: A second fixed rod (508) is fixedly sleeved inside a plurality of the fourth movable rings (506); the bottom of each of the first fixed rods (507) and the second fixed rods (508) are movably connected to a connecting frame (509) via a ninth latch; the bottom of each of the connecting frames (509) is fixedly connected to a pin (510); and a plurality of inclined pillars (511) are fixedly connected in a circular array to the side of the fixed ring (501) opposite to the sewage pipe (3).

10. A fixed limit device for the water inlet of a water intake pump station according to claim 9, characterized in that: A sewage outlet is provided between the sewage pipe (3) and the water inlet pipe (2); a plurality of inclined plates (301) are fixedly connected to the top of the sewage pipe (3) in a circular array, and two adjacent inclined plates (301) are provided with corridors.

Images