Synchronous car jacking device for water conservancy pumping station

Abstract

The application belongs to the technical field of water conservancy station synchronous car jacking, and discloses a water conservancy pump station synchronous car jacking device, which comprises four hydraulic jacks, an oil inlet joint, an auxiliary joint, and a fixed intelligent hydraulic station, the upper and lower ends of the front of the fixed intelligent hydraulic station are respectively provided with an oil supply mother pipe and an oil return mother pipe, a plurality of butt joint pipe assemblies are equidistantly arranged on one side of the oil supply mother pipe and the oil return mother pipe, the upper and lower ends of the outside of the four hydraulic jacks are respectively provided with annular pipe assemblies, the annular pipe assembly comprises a communication pipe and an annular pipe, the annular pipe is used for connecting the four hydraulic jacks in series, and one side of the annular pipe is provided with an external port. In the working process, the oil supply mother pipe and the oil return mother pipe are connected through the fixed intelligent hydraulic station, the oil supply mother pipe and the oil return mother pipe are respectively connected with the annular pipe assembly through a plurality of butt joint pipe assemblies, and the annular pipe assembly is connected with the pump station car jacking assembly, so that the purpose of centralized control of car jacking is achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water conservancy station synchronous car topping, and specifically relates to a water conservancy pump station synchronous car topping device. BACKGROUND

[0002] After the transformation of Jiangdu four stations, seven ZLQ30-7.8 type large vertical hydraulic full-regulating axial flow pumps with a diameter of 2.9 m are installed, the design single-machine flow is 30 m 3 / s, the design lift is 7.8 m, a TL3400-40 type 3400 kW synchronous motor is matched, and the total pumping capacity is 210 m 3 / s.

[0003] The utility model patent with the application number 202221019949.2 and the name "water conservancy pump station car topping device" applied by the applicant discloses that the original car topping device is composed of four hydraulic jacks, two oil pipes and one mobile hydraulic oil pump. The four hydraulic jacks are respectively installed on the four corners of the lower rack of the unit, the two oil pipes are connected in series at the oil inlet and outlet of the four hydraulic jacks and leave an external interface above the motor foundation pier, and the mobile hydraulic oil pump provides the hydraulic oil required for the work of the hydraulic jacks; when the car topping operation is performed, the operator needs to connect the hydraulic oil pump to the oil supply and discharge port of the oil pipe, press the pump start button, rotate the switch to the jog mode, continuously press the lifting button during the car topping, observe the rotor lifting height at this time, release the lifting button when the lifting height is qualified, press the retraction button to recover the pressure oil, and press the pump stop button to complete the car topping operation; since the oil supply and discharge port of the oil pipe is arranged above the motor foundation pier 3.6 meters away from the ground, the motor foundation pier is narrow and has no guardrail; meanwhile, one operator needs to climb the ladder to the oil supply and discharge port of the oil pipe, and the other operator needs to operate the start and stop of the hydraulic oil pump on the ground, which is inconvenient to operate and has safety hazards.

[0004] As Figure 10 shown, it solves the safety hazards caused by climbing through the oil path extension, improves the work efficiency of the car topping, and solves the accurate car topping, the protection of personal and equipment safety problems through the additional micro switch 15, pressure sensor and time relay at the top of the packing gland 16 of the water pump shaft.

[0005] The above patent solves the single water pump unit jacking operation, but currently, after the transformation of Jiangdu four stations, seven large vertical hydraulic full-regulating axial flow pumps are installed, and four jacks are installed at the bottom of each device. When performing the jacking operation, the operator needs to connect the hydraulic oil pump to the oil pipe external supply and discharge port, press the pump start button, rotate the switch to the jog position, continuously press the lifting button during jacking, and observe the rotor jacking height at this time. After the jacking height is qualified, the lifting button is released, the retracting button is pressed to recover the pressure oil, and the pump stop button is pressed to complete the jacking operation. The hydraulic oil pump oil pipe external supply and discharge port needs to be disconnected, and the hydraulic oil pump oil pipe external supply and discharge port is connected to the next jacking device. In this way, the rotors of the seven vertical hydraulic full-regulating axial flow pumps are jacked in turn. The use efficiency of the jacking device is reduced in the process, and the service life of the oil supply pipeline is affected by the continuous connection and disconnection of the oil supply pipeline. SUMMARY

[0006] To solve the problems raised in the above background art, the present application provides a water conservancy pump station synchronous jacking device.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a water conservancy pump station synchronous jacking device, comprising a plurality of pump station jacking assemblies, the pump station jacking assembly comprising four hydraulic jacks, an oil inlet and return joint and an auxiliary joint, the hydraulic jacks being arranged on the four corners of a lower rack, the lower rack being arranged on a motor foundation pier, the hydraulic jacks being used to contact the rotor on the motor shaft, the lower part of the motor shaft being connected to a water pump shaft, a protective tube dust cover being arranged on the water pump shaft; the oil inlet and return joint being arranged outside the lower rack, the auxiliary joint being arranged on the outer facade of the motor foundation pier;

[0008] It also includes a fixed intelligent hydraulic station, the upper and lower ends of the front of the fixed intelligent hydraulic station being respectively provided with an oil supply mother pipe and an oil return mother pipe, one side of the oil supply mother pipe and the oil return mother pipe being respectively provided with a butt joint pipe assembly at equal distances, the upper and lower ends of the outside of the four hydraulic jacks being respectively provided with annular pipe assemblies, the annular pipe assembly comprising a communication pipe and an annular pipe, the annular pipe being used to connect the four hydraulic jacks in series, one side of the annular pipe being provided with an external port,

[0009] The oil inlet and return joint comprises an oil inlet joint and an oil return joint, the annular pipes in the two annular pipe assemblies being respectively connected to the oil inlet joint and the oil return joint,

[0010] The auxiliary joint has a pair, and the pair of auxiliary joints are respectively connected to the oil inlet joint and the oil return joint through an extension pipe,

[0011] The communication pipes in the two annular pipe assemblies are respectively connected to the pair of auxiliary joints;

[0012] The butt joint pipe assembly and the annular pipe assembly are one-to-one corresponding and connected,

[0013] The n-shaped branch pipe is externally mounted between the docking pipe assembly and the communication pipe, the middle part of the branch pipe is provided with a manual switch, an electromagnetic valve is mounted on the communication pipe, and the electromagnetic valve is located between the two ends of the branch pipe,

[0014] The outer part of the water pump shaft is provided with a laser range finder, and the laser range finder is fixedly installed at a position 4mm above the dustproof cover of the protective pipe;

[0015] The laser range finder is connected with a controller, and the controller is used to control the electromagnetic valve.

[0016] Preferably, the docking pipe assembly comprises a shunt pipe, a second docking port, a limiting block, a sealing ring and a second sealing gasket, and the shunt pipes in the two docking pipe assemblies are connected with the oil supply main pipe and the oil return main pipe respectively;

[0017] The side of the shunt pipe is provided with the second docking port, the side of the second docking port is annularly and equiangularly provided with four limiting blocks, the inner wall of the second docking port is provided with the sealing ring, and the side of the second docking port is provided with the second sealing gasket.

[0018] Preferably, the annular pipe assembly further comprises a first docking port, a sleeve, a limiting hole and a first sealing gasket, the side of the communication pipe is provided with the first docking port, the side of the first docking port is provided with the sleeve, the side of the first docking port is annularly and equiangularly provided with four limiting holes, and the side of the first docking port is provided with the first sealing gasket.

[0019] The sleeve is located in the four limiting holes, the sleeve is provided with an annular groove, and the sealing ring is connected in the annular groove.

[0020] Preferably, the limiting blocks are matched with the limiting holes in the annular pipe assembly, and the limiting blocks are respectively fixedly clamped in the inner parts of the limiting holes.

[0021] The first docking port and the second docking port are respectively provided with corresponding protrusions on the circumference, and the opposite protrusions are connected through a screw rod.

[0022] The first sealing gasket and the second sealing gasket are respectively sleeved on the limiting blocks.

[0023] Preferably, the monitoring assembly further comprises a warning device, a protective pipe, a spring, oil absorption cotton, a receiving plate and a pressure sensor, the protective pipe is sleeved on the first docking port and the second docking port,

[0024] The top of the protective pipe is provided with the warning device, the middle part of the inner part of the protective pipe is provided with the oil absorption cotton, the left and right ends of the bottom of the inner part of the protective pipe are respectively provided with the pressure sensor, the bottom of the inner part of the protective pipe is provided with the spring, and the top of the spring is provided with the receiving plate.

[0025] The bottom of the oil absorption cotton is in contact with the top of the receiving plate, and the bottom of the receiving plate is fixedly connected with the top of the spring.

[0026] Preferably, the outside of the water pump shaft is provided with a laser range finder, and the laser range finder is fixedly installed above the dustproof cover of the protective tube at 4mm.

[0027] In the working process of the present application, the fixed intelligent hydraulic station is connected with the oil supply mother pipe and the oil return mother pipe, the oil supply mother pipe and the oil return mother pipe are connected with the annular pipe assembly through a plurality of pipe assembly connectors, and the annular pipe assembly is connected with the pump station top car assembly to achieve the purpose of centralized control of the top car. Each unit has three parallel circuits, the first circuit is an electromagnetic valve control used for automatic top car control, the second circuit is a manual opening branch pipe used for top car device when the first circuit electromagnetic valve fails, and the third circuit is an external port on the annular pipe, which prevents the fixed intelligent hydraulic station from being damaged, and can use a mobile hydraulic device to top each unit, that is, the effect of centralized control of the top car is achieved.

[0028] The present application achieves the purpose of precise top car through the setting of the laser range finder, the electromagnetic valve and the fixed intelligent hydraulic station; the setting of the monitoring assembly achieves the purpose of interface monitoring. During the conveying process of the hydraulic oil in the pipeline, the interface is monitored by the oil absorption cotton. If the interface leaks, the oil absorption cotton will adsorb it, the hydraulic oil will move downward along the inside of the oil absorption cotton, and gather at the bottom of the oil absorption cotton. The receiving plate is pressed by the spring under the gravity, and the left and right of the bottom of the receiving plate will be in contact with the top of the pressure sensor respectively. At this time, the alarm will give an alarm, which means that the connection leaks and needs to be repaired, thereby achieving the effect of interface monitoring. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The present application is a structural flowchart schematic diagram;

[0030] Figure 2 The present application is a structural overall schematic diagram;

[0031] Figure 3 The present application is Figure 2 The present application is an enlarged schematic diagram of A;

[0032] Figure 4 The present application is a structural partial schematic diagram;

[0033] Figure 5 The present application is a structural monitoring assembly appearance schematic diagram;

[0034] Figure 6 The present application is a structural monitoring assembly cross section schematic diagram;

[0035] Figure 7 The present application is a structural shunt pipe and communication pipe butt joint assembly schematic diagram;

[0036] Figure 8 Assembling profile schematic diagram of shunt pipe and communication pipe of the structure of the present application;

[0037] Figure 9 Internal schematic diagram of monitoring assembly of the structure of the present application,

[0038] Figure 10 Schematic diagram of prior art structure;

[0039] In the figure: 1, lower rack; 2, motor foundation pier; 3, hydraulic jack; 4, oil inlet and return joint; 5, fixed intelligent hydraulic station; 6, motor shaft; 7, rotor; 8, laser range finder;

[0040] 9, monitoring assembly; 901, warning device; 902, protective tube; 903, spring; 904, oil absorbing cotton; 905, receiving plate; 906, pressure sensor;

[0041] 10, annular pipe assembly; 101, communication pipe; 102, first connecting port; 103, sleeve; 104, limiting hole; 105, first sealing gasket; 106, annular pipe;

[0042] 11, water pump shaft; 12, protective tube dust cover; 13, auxiliary joint; 14, extension pipe; 15, micro switch; 16, stuffing box; 17, oil supply main pipe; 18, oil return main pipe;

[0043] 19, connecting pipe assembly; 191, shunt pipe; 192, second connecting port; 193, limiting block; 194, sealing ring; 195, second sealing gasket; 196, protruding block;

[0044] 20, manual switch; 21, branch pipe; 22, external port; 23, electromagnetic valve. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0046] As Figures 1-9As shown, the present application provides a water conservancy pump station synchronous car lifting device, comprising a plurality of pump station car lifting assemblies, the pump station car lifting assembly comprises four hydraulic jacks 3, an oil inlet and return joint 4 and an auxiliary joint 13, the hydraulic jacks 3 are arranged on the four corners of the lower rack 1, the lower rack 1 is arranged on the motor foundation pier 2, the hydraulic jacks 3 are used to contact the rotor 7 on the motor shaft 6, the lower part of the motor shaft 6 is connected with the water pump shaft 11, and the water pump shaft 11 is provided with a protective tube dust cover 12; the oil inlet and return joint 4 is arranged outside the lower rack 1, and the auxiliary joint 13 is arranged on the outer facade of the motor foundation pier 2.

[0047] Further comprising a fixed intelligent hydraulic station 5, the upper and lower ends of the front of the fixed intelligent hydraulic station 5 are respectively provided with an oil supply mother pipe 17 and an oil return mother pipe 18, one side of the oil supply mother pipe 17 and the oil return mother pipe 18 is respectively provided with a butt joint pipe assembly 19, the upper and lower ends of the four hydraulic jacks 3 outside are respectively provided with an annular pipe assembly 10, the annular pipe assembly 10 comprises a communication pipe 101 and an annular pipe 106, the annular pipe is used for connecting the four hydraulic jacks 3 in series, one side of the annular pipe is provided with an external port 22,

[0048] The oil inlet and return joint 4 comprises an oil inlet joint and an oil return joint, the annular pipes in the two annular pipe assemblies 10 are respectively connected with the oil inlet joint and the oil return joint,

[0049] The auxiliary joint 13 has a pair, the pair of auxiliary joints 13 are connected with the oil inlet joint and the oil return joint through the extension pipe 14,

[0050] The communication pipes 101 in the two annular pipe assemblies 10 are respectively connected with the pair of auxiliary joints 13;

[0051] The butt joint pipe assembly 19 and the annular pipe assembly 10 correspond and are connected one by one,

[0052] The n-shaped branch pipe 21 is externally mounted between the butt joint pipe assembly 19 and the communication pipe (101), the middle part of the branch pipe 21 is provided with a manual switch 20, the communication pipe 101 is provided with an electromagnetic valve 23, and the electromagnetic valve (23) is located between the two ends of the branch pipe (21).

[0053] The outside of the water pump shaft 11 is provided with a laser range finder 8, the laser range finder 8 is fixedly installed at a position 4 mm above the protective tube dust cover 12, the laser range finder is connected with a controller, and the controller is used to control the electromagnetic valve.

[0054] The fixed intelligent hydraulic station 5 comprises a motor and an oil pump, wherein the motor is connected with a controller, and the motor drives the oil pump to act.

[0055] The application realizes the centralized control of the car lifting by connecting the oil supply main pipe and the oil return main pipe with the fixed intelligent hydraulic station, connecting the oil supply main pipe and the oil return main pipe with the annular pipe assembly through a plurality of docking pipe assemblies respectively, and connecting the pump station car lifting assembly with the annular pipe assembly,

[0056] Each unit has three parallel circuits, the first circuit is an electromagnetic valve control used for automatic car lifting control, the second circuit is a manually opened branch pipe for car lifting device use when the first circuit electromagnetic valve fails, and the third circuit is an external port on the annular pipe to prevent damage to the fixed intelligent hydraulic station, and a mobile hydraulic device (such as a mobile hydraulic oil pump) can be used to lift the car one by one, thereby achieving the effect of centralized control of the car lifting.

[0057] As shown in Figures 4-8 The docking pipe assembly 19 includes a shunt pipe 191, a second docking port 192, a limiting block 193, a sealing ring 194 and a second sealing gasket 195, and the shunt pipes 191 in the two docking pipe assemblies 19 are connected with the oil supply main pipe 17 and the oil return main pipe 18 respectively;

[0058] The shunt pipe 191 is provided with the second docking port 192 on one side, the second docking port 192 is annularly and equiangularly provided with four limiting blocks 193 on one side, the inner wall of the second docking port 192 is provided with the sealing ring 194, and the second docking port 192 is provided with the second sealing gasket 195 on one side.

[0059] The annular pipe assembly 10 further includes a first docking port 102, a sleeve 103, a limiting hole 104 and a first sealing gasket 105, the first docking port 102 is arranged on one side of the communication pipe 101, the sleeve 103 is arranged on one side of the first docking port 102, four limiting holes 104 are annularly and equiangularly arranged on one side of the first docking port 102, and the first sealing gasket 105 is arranged on one side of the first docking port 102.

[0060] The first sealing gasket 105 and the second sealing gasket 195 are respectively sleeved on the limiting blocks 193.

[0061] The first docking port 102 and the second docking port 192 are respectively provided with corresponding protrusions 196 on the circumference, and the opposite protrusions are connected through a screw rod.

[0062] The limiting blocks 193 are matched with the limiting holes 104, the limiting blocks 193 are respectively fixedly connected in the limiting holes 104, and the first sealing gasket 105 and the second sealing gasket 195 in the annular pipe assembly 10 are both made of rubber material.

[0063] By the above scheme: when the oil inlet and return pipes of each hydraulic jack 3 are connected with the oil supply main pipe 17 and the oil return main pipe 18, the first connecting interface 102 is contacted with the second connecting interface 192, the sleeve pipe 103 is sleeved in the second connecting interface 192, the first sealing gasket 105 and the second sealing gasket 195 are respectively arranged between the first connecting interface 102 and the second connecting interface 192, the oil absorbing cotton 904 is arranged outside the first sealing gasket 105 and the second sealing gasket 195, and the screw rod is fixed, so that the pipe connection can be realized.

[0064] As shown in Figures 5-9 the monitoring assembly (9) is sleeved between the shunt pipe (191) and the communication pipe (101),

[0065] The monitoring assembly 9 comprises a warning device 901, a protective pipe 902, a spring 903, oil absorbing cotton 904, a receiving plate 905 and a pressure sensor 906, the protective pipe 902 is sleeved on the first connecting interface 102 and the second connecting interface 192,

[0066] The top of the protective pipe 902 is provided with the warning device 901, the middle of the inside of the protective pipe 902 is provided with the oil absorbing cotton 904, the left and right ends of the bottom of the inside of the protective pipe 902 are respectively provided with the pressure sensor 906, the bottom of the inside of the protective pipe 902 is provided with the spring 903, and the top of the spring 903 is provided with the receiving plate 905;

[0067] The bottom of the oil absorbing cotton 904 is contacted with the top of the receiving plate 905, the bottom of the receiving plate 905 is fixedly connected with the top of the spring 903, and the oil absorbing cotton 904 is made of sponge material,

[0068] By the above scheme: during the process of connecting the first connecting interface 102 with the second connecting interface 192, the oil absorbing cotton 904 is sleeved on the first sealing gasket 105 and the second sealing gasket 195, and is fixed by the screw rod, four limiting blocks 193 are respectively fixedly clamped in the inside of the limiting hole 104, so that the oil conveying pipe is more stable, meanwhile, the sealing ring 194, the first sealing gasket 105 and the second sealing gasket 195 are used for sealing the pipe, and the sealing property of the pipe connection is effectively improved. If oil seeps at the interface, the oil absorbing cotton 904 can absorb the oil, the hydraulic oil moves downwards along the inside of the oil absorbing cotton 904 and gathers at the bottom of the oil absorbing cotton 904, the receiving plate 905 is pressed against the spring 903 under the gravity, and the receiving plate 905 is pressed downwards against the spring 903, the left and right of the bottom of the receiving plate 905 are contacted with the top of the pressure sensor 906, at this moment, the warning device 901 gives a warning, which means that the oil seeps at the connection and needs to be repaired, so that the connecting interface can be repaired in time.

[0069] The working principle and use process of the present application are as follows:

[0070] After installing 7 large vertical hydraulic full-adjustable axial flow pumps, four hydraulic jacks 3 of each unit are connected in series through the annular pipe assembly 10, and then connected to the oil return joint 4, auxiliary joint 13 and communication pipe 101 in turn; each unit has three parallel circuits, the first circuit is controlled by the electromagnetic valve 23 for automatic car jacking control, the second circuit is manually opened by the branch pipe 21 when the first circuit electromagnetic valve 23 fails to supply the jacking device, and the third circuit is the external port 22 to prevent damage to the fixed intelligent hydraulic station 5, which can use mobile ultra-high hydraulic devices to jacking the car one by one.

[0071] When the connecting pipe assembly 19 and the communication pipe 101 are connected, the first connecting port 102 is connected with the second connecting port 192, the sleeve pipe 103 is sleeved in the second connecting port 192, the first sealing pad 105 and the second sealing pad 195 are respectively placed between the first connecting port 102 and the second connecting port 192, the oil absorbing cotton 904 is placed outside the first sealing pad 105 and the second sealing pad 195, the protection pipe 902 is sleeved outside the first connecting port 102 and the second connecting port 192, and the hydraulic oil is transported in the pipeline. During the transportation process, the interface is monitored by the oil absorbing cotton 904. If the interface leaks oil, the oil absorbing cotton 904 will adsorb it. The hydraulic oil will move downward along the inside of the oil absorbing cotton 904 and gather at the bottom of the oil absorbing cotton 904. The receiving plate 905 is pressed against the spring 903 under the action of gravity, and the left and right of the bottom of the receiving plate 905 will respectively contact the top of the pressure sensor 906. At this time, the warning device 901 will give a warning, which means that the connection leaks oil and needs to be repaired.

[0072] The laser range finder on each unit is connected and controlled respectively for centralized control. The laser range finder 8 is 4mm above the dust cover 12 of the large shaft protection pipe, and the dust cover 12 is fixedly installed on the water pump shaft 11. When each unit is jacked up, the electromagnetic valve 23 of the unit is automatically opened, the fixed intelligent hydraulic station 5 supplies pressure oil, the hydraulic jack 3 rises to jack up the rotor 7 part of the motor water pump, and after reaching the set stroke, the laser range finder 8 feeds back a signal to the controller to stop providing pressure oil and do oil return operation, then the electromagnetic valve 23 is closed, and the jacking operation of the single unit is completed.

[0073] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0074] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A water conservancy pumping station synchronous jacking device, comprising a plurality of pumping station jacking assemblies, the pumping station jacking assembly comprising four hydraulic jacks (3), an oil inlet and return joint (4) and an auxiliary joint (13), the four hydraulic jacks (3) being arranged at four corners of a lower frame (1), the lower frame (1) being arranged on a motor foundation pier (2), the hydraulic jacks (3) being used to contact a rotor (7) on a motor shaft (6), a water pump shaft (11) being connected below the motor shaft (6), a protective pipe dust cover (12) being arranged on the water pump shaft (11); the oil inlet and return joint (4) being arranged outside the lower frame (1), the auxiliary joint (13) being arranged on the outer facade of the motor foundation pier (2); characterized in that further comprising a fixed intelligent hydraulic station (5), the upper and lower ends of the front of the fixed intelligent hydraulic station (5) being respectively provided with an oil supply mother pipe (17) and an oil return mother pipe (18), one side of the oil supply mother pipe (17) and the oil return mother pipe (18) being respectively provided with a butt joint pipe assembly (19) at equal distances, the upper and lower ends of the four hydraulic jacks (3) being respectively provided with annular pipe assemblies (10), the annular pipe assembly (10) comprising a communication pipe (101) and an annular pipe, the annular pipe being used to connect the four hydraulic jacks (3) in series, one side of the annular pipe being provided with an external port (22), the oil inlet and return joint (4) comprising an oil inlet joint and an oil return joint, the annular pipes in the two annular pipe assemblies (10) being respectively connected to the oil inlet joint and the oil return joint, the auxiliary joint (13) having a pair, the pair of auxiliary joints (13) being respectively connected to the oil inlet joint and the oil return joint through extension pipes (14), the communication pipes (101) in the two annular pipe assemblies (10) being respectively connected to the pair of auxiliary joints (13); the butt joint pipe assemblies (19) and the annular pipe assemblies (10) corresponding one by one and being connected, n-shaped branch pipes (21) being externally mounted between the butt joint pipe assemblies (19) and the communication pipes (101), the middle part of the branch pipe (21) being provided with a manual switch (20), an electromagnetic valve (23) being mounted on the communication pipe (101), the electromagnetic valve (23) being located between the two ends of the branch pipe (21); an external laser range finder (8) being arranged on the water pump shaft (11), the laser range finder (8) being fixedly installed 4mm above the protective pipe dust cover (12); the laser range finder (8) being connected to a controller, the controller being used to control the electromagnetic valve; the butt joint pipe assembly (19) comprising a shunt pipe (191), a second butt joint (192), a limiting block (193) and a sealing ring (194), the shunt pipes (191) in the two butt joint pipe assemblies (19) being respectively connected to the oil supply mother pipe (17) and the oil return mother pipe (18); one side of the shunt pipe (191) being provided with the second butt joint (192), four limiting blocks (193) being annularly and equiangularly arranged on one side of the second butt joint (192), the inner wall of the second butt joint (192) being provided with the sealing ring (194); The annular pipe assembly (10) further comprises a first pair of interfaces (102), a sleeve (103) and limiting holes (104), one side of the communication pipe (101) is provided with the first pair of interfaces (102), one side of the first pair of interfaces (102) is provided with the sleeve (103), and four limiting holes (104) are annularly and equiangularly arranged on one side of the first pair of interfaces (102). The sleeve (103) is located in the four limiting holes (104), the sleeve (103) is provided with an annular groove, and the sealing ring (194) is used for being connected in the annular groove.

2. The synchronous hoist device for water conservancy pumping station according to claim 1, characterized in that: The limiting block (193) is matched with the limiting hole (104) in the annular pipe assembly (10), and the limiting block (193) is respectively fixedly clamped in the inside of the limiting hole (104).

3. The water conservancy pump station synchronous car lifting device according to claim 2, characterized in that: The first pair of interfaces (102) and the second pair of interfaces (192) are respectively provided with corresponding protrusions on the circumference, and the opposite protrusions are connected through a screw rod.

4. The water conservancy pump station synchronous car lifting device according to claim 2, characterized in that: One side of the second pair of interfaces (192) is provided with a second sealing gasket (195), one side of the first pair of interfaces (102) is provided with a first sealing gasket (105), and the first sealing gasket (105) and the second sealing gasket (195) are respectively sleeved on the limiting block (193).

5. The water conservancy pump station synchronous car lifting device according to claim 4, characterized in that: It further comprises a monitoring assembly (9), the monitoring assembly (9) comprises a warning device (901), a protective tube (902), a spring (903), oil absorbing cotton (904), an abutment plate (905) and a pressure sensor (906), the protective tube (902) is sleeved on the first pair of interfaces (102) and the second pair of interfaces (192), The top of the protective tube (902) is provided with the warning device (901), the middle part of the inside of the protective tube (902) is provided with the oil absorbing cotton (904), the oil absorbing cotton (904) is sleeved on the first sealing gasket (105) and the second sealing gasket (195), The left and right ends of the bottom of the inside of the protective tube (902) are respectively provided with the pressure sensor (906), the bottom of the inside of the protective tube (902) is provided with the spring (903), the top of the spring (903) is provided with the abutment plate (905), The bottom of the oil absorbing cotton (904) is in contact with the top of the abutment plate (905), and the bottom of the abutment plate (905) is fixedly connected with the top of the spring (903). The bottom of the oil absorbing cotton (904) is in contact with the top of the abutment plate (905), and the bottom of the abutment plate (905) is fixedly connected with the top of the spring (903).

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