Lifting type lock head water retaining system suitable for rapid change of water level

Abstract

A lifting type lock head water retaining system suitable for rapid water level change mainly comprises a working door, an access door, a working door groove, an access door groove and the like. The working door comprises a working gate which is arranged in the working door groove, and the upper end of the working gate ascends and descends through a lifting device; locking devices are arranged on the left side and the right side of the working gate, a plurality of sets of water retaining locking grooves are formed in the corresponding working gate grooves at intervals in the height direction, and the locking devices and the corresponding water retaining locking grooves are locked or unlocked. The access door comprises a plurality of sections of access stop log doors arranged in the access door groove, and the access stop log doors ascend and descend through an access door hoist; the working gate groove extends downwards by a certain depth along the bottom of the channel, and when the working gate is adjusted to the highest position from the lowest position, the bottom of the working gate is always lower than the bottom of the channel. According to the lifting type lock head water retaining system suitable for rapid change of the water level, the water retaining height is convenient and rapid to adjust, overhaul and maintenance are convenient, and the automation degree is high.

Description

Technical Field

[0001] The utility model relates to the field of ship lift water retaining, in particular to a lifting type gate head water retaining system suitable for rapid water level changes. Background Art

[0002] As the ship lift usually runs vertically, when the ship compartment docks with the lock head, the docking sealing device extends to connect the ship compartment with the lock head working door to form a ship passage, so the docking sealing surface on the lock head working door must remain relatively fixed with the ship compartment. The miter door structure of the ship lock will move as a whole during operation and cannot provide a relatively fixed docking sealing surface, so it is not suitable for ship lifts.

[0003] At present, the working gate of the ship lift is a U-shaped flat door structure with a lying small door. The lying small door is opened by tilting and sinking, and is opened or closed by driving the oil cylinder to overcome the gravity of the lying small door. Therefore, the size of the lying small door cannot be designed to be too large. The water level fluctuation of the waterway that the gate can adapt to is determined by the size of the lying small door, so the water level fluctuation of the waterway that the gate can adapt to is also limited. When the hub power station is peaking or the water level in the basin is adjusted, the water level of the waterway will fluctuate greatly. A single gate cannot meet the needs of water retaining and navigation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a lifting type gate head water retaining system suitable for rapid water level changes. The system has the characteristics of compact and reasonable structure, convenient and rapid adjustment of water retaining height, easy inspection and maintenance, and high degree of automation, which effectively improves the adaptability and safety of the gate head water retaining device under the condition of rapid water level changes in the waterway.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A lifting type gate head water retaining system suitable for rapid water level changes, comprising a working door, an inspection door, a working door slot, an inspection door slot, an inspection door warehouse, an inspection door hoist, a door inter-gate water discharge system, a bottom drainage system, and a working door inspection locking device;

[0007] Among them, the bottom drainage system, working door slot, door drainage system, and inspection door slot are arranged separately from the ship lift cabin section;

[0008] The inspection door hoist and the inspection door warehouse are arranged at the top of the navigation channel at the gate head;

[0009] The working door inspection locking device is arranged at the top of the working door slot;

[0010] The working door comprises a working gate with a lying door, the working gate is placed in the working gate groove and the upper end is lifted and lowered by the working door lifting device; working gate locking devices are arranged on the left and right sides of the working gate, and a plurality of groups of water retaining locking grooves are arranged at intervals along the height direction on the corresponding working door groove, and the working gate locking device is locked or unlocked with the corresponding water retaining locking groove;

[0011] The inspection door comprises a multi-section inspection stacked beam door, which is lifted and lowered by the inspection door hoist; the multi-section inspection stacked beam door is placed in the inspection door slot from top to bottom to block water at the gate head of the ship lift when inspection is carried out;

[0012] The working gate groove extends downward to a certain depth along the bottom of the waterway, and when the working gate is adjusted from the lowest position to the highest position, the bottom of the working gate is always lower than the bottom of the waterway;

[0013] The working door lifting device includes piers arranged on the left and right sides of the upper end of the working door, each pier is equipped with a first hydraulic cylinder at the top, and the lower end of the first hydraulic cylinder is hinged to the working door through a plurality of connecting rods hinged in sequence;

[0014] The working gate locking device includes a locking plate, the upper end of which is rotatably mounted on the working gate through a central axis, and the lower end of the locking plate is hinged to the second hydraulic cylinder on the working gate; when the second hydraulic cylinder extends, the locking plate is pushed into the water retaining locking groove; when the second hydraulic cylinder retracts, the locking plate retracts to the working gate.

[0015] A vertical plane is arranged on the inner side of the locking plate, and the locking plate is limited by the vertical plate on the working gate when extended; and the bottom surface of the corresponding water retaining locking groove in contact with the locking plate is an inclined surface inclined outwardly and downwardly.

[0016] A pressurized water-stop system is installed on the working door. The pressurized water-stop system consists of two pressurized water-stops, inner and outer. The outer pressure is released when the door position of the working door is adjusted, and the outer pressure is restored after the door position adjustment is completed.

[0017] The inter-door drainage system includes a drainage pipe, a water inlet of the drainage pipe is located at the bottom between the working door slot and the inspection door slot, a water outlet of the drainage pipe extends into the water collection well, a trash rack is provided at the water inlet of the drainage pipe, a first energy dissipation valve, a first inspection valve, and a first working valve are installed at intervals on the drainage pipe, and the first energy dissipation valve, the first inspection valve, and the first working valve are controlled by the drainage system control system; the bottom drainage system includes a drainage pipe, the drainage pipe is pumped by a drainage pump, and a second energy dissipation valve, a second inspection valve, and a second working valve are installed on the drainage pipe, and the second energy dissipation valve, the second inspection valve, and the second working valve are controlled by the drainage system control system.

[0018] The working door maintenance locking device includes a third oil cylinder, which is arranged on the left and right sides of the maintenance locking groove at the upper part of the working door groove, and the third oil cylinder is connected to the locking beam; during normal navigation, the locking beam retracts to the rear of the maintenance locking groove, and extends out after the working door is lifted to the maintenance position, fixing the working door in the maintenance position.

[0019] The height of the working gate h 工 The maximum fluctuation of water level in the channel h 变 Decision, h 工 =h 变 +h 低 ,h 低 It is the height that meets normal navigation and water retaining safety when the working gate is in the lowest water retaining locking groove.

[0020] The number n of water retaining locking grooves is determined by the maximum fluctuation of the water level in the channel h 变 Determine, n=h 变 / h1; Number of sections of the stacked beam door for maintenance n 检 The depth of the trough h 航 Decision, 检 =h 航 / h2, h2 is the appropriate height of each stoplog section determined according to the stoplog door design specifications.

[0021] The utility model provides a lifting type gate head water retaining system suitable for rapid water level changes, which has the following technical effects:

[0022] 1) By setting working doors, inspection doors, working door slots, inspection door slots, inspection door warehouses, inspection door hoists, door drainage systems, bottom drainage systems, and working door inspection locking devices, it is possible to quickly and conveniently adjust the water retaining height of the gate head water retaining device when the water level in the waterway changes rapidly. It has the characteristics of compact and reasonable structure, complete functions, and high degree of automation.

[0023] 2) Compared with the original working gate of the gate head, the working gate groove in this application will go deep into the bottom of the channel to a certain depth. The size of the working gate can ensure that when the gate is adjusted from the lowest position to the highest position, the bottom of the gate is always lower than the bottom of the channel. Designing the gate as a whole and operating the gate up or down through the cylinder can greatly improve the efficiency of the gate water level adjustment.

[0024] 3) This device can realize the continuous rise or fall of the working gate locking position, and can quickly adjust the working gate to a suitable position, thereby improving the ability to cope with changes in water level in the waterway.

[0025] 4) By setting up a maintenance locking device for the working gate, after using the maintenance gate to block the water body of the channel, the working gate can be lifted to the maintenance position and locked, which is convenient for the inspection and maintenance of the working gate and the waterway at the gate head, and improves the reliability of equipment operation.

[0026] 5) The pressurized water stop system is equipped with two internal and external pressurized water stops, which not only improves the reliability of the water stop seal during normal navigation, but also releases the water stop pressure when adjusting the water retaining height of the working gate, reducing the wear of the water stop during the gate adjustment process. At the same time, the two water stops are backup for each other. When one of the water stops fails, the other water stop can complete the seal alone. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0028] Figure 1 It is a top view of the utility model.

[0029] Figure 2 It is a side view of the utility model.

[0030] Figure 3 It is a schematic diagram of the water drainage system between doors of the utility model.

[0031] Figure 4 It is a schematic diagram of the state of the inspection door of the utility model when it blocks water.

[0032] Figure 5 It is a schematic diagram of the state of the working door of the utility model when blocking water.

[0033] Figure 6 It is a front view of the upper half of the working door in the utility model.

[0034] Figure 7 It is a front view of the main part of the working door in the utility model.

[0035] Figure 8 It is a schematic diagram of the locking state of the working door locking device in the utility model.

[0036] Fig. 9 It is a schematic diagram of the retracted state of the working door locking device in the utility model.

[0037] Fig.10 This is the layout diagram of the bottom drainage system in the utility model (a represents the bottom of the working gate groove, and b represents the bottom of the channel).

[0038] Fig.11 for Fig.10 Schematic diagram of the structure of the mid-bottom drainage system.

[0039] Fig.12 It is a top view of the working door maintenance locking device in the utility model.

[0040] Fig.13It is a schematic diagram of the state of the working door in the maintenance locking position (the cylinder connecting rod has been removed) in the utility model (a represents the bottom end of the working door slot, and b represents the bottom of the channel).

[0041] Fig.14 This is a schematic diagram of the state of the working gate in the utility model at the highest water retaining position (locking position No. 6) (a represents the bottom end of the working gate groove, and b represents the bottom of the waterway).

[0042] Fig.15 This is a schematic diagram of the state of the working gate in the utility model at the lowest water retaining position (locking position No. 1) (a represents the bottom end of the working gate slot, and b represents the bottom of the waterway).

[0043] In the figure: working door 1, inspection door 2, working door slot 3, inspection door slot 4, inspection door warehouse 5, inspection door opening and closing machine 6, door drainage system 7, bottom drainage system 8, working door inspection locking device 9, control room 10, working door 1-1, working door lifting device 1-2, lying door 1-3, working door locking device 1-4, pressurized water stop system 1-5, pier 1-2-1, first hydraulic cylinder 1-2-2, connecting rod 1-2-3, locking plate 1-4-1, second hydraulic cylinder 1-4-2, vertical Straight plate 1-4-3, maintenance stacking beam door 2-1, water retaining locking groove 3-1, maintenance locking groove 3-2, drain pipe 7-1, trash rack 7-2, first energy dissipation valve 7-3, first maintenance valve 7-4, first working valve 7-5, drain system control system 7-6, drain pipe 8-1, drain pump P8-2, second energy dissipation valve 8-3, second maintenance valve 8-4, second working valve 8-5, drainage system control system 8-6, water collection well 8-7, third oil cylinder 9-1, locking beam 9-2. DETAILED DESCRIPTION

[0044] like Figure 1 As shown, a lifting type gate head water retaining system suitable for rapid water level changes includes a working door 1, an inspection door 2, a working door slot 3, an inspection door slot 4, an inspection door warehouse 5, an inspection door opening and closing machine 6, a door inter-drainage system 7, a bottom drainage system 8, a working door inspection locking device 9, and a control room 10.

[0045] The device extends outward from the ship lift cabin section, and is respectively arranged with a bottom drainage system 8, a working door slot 3, a door drainage system 7, and a maintenance door slot 4. The maintenance door hoist 6 and the maintenance door storehouse 5 are respectively arranged at the top of the lock head navigation slot. The working door maintenance locking device 9 is arranged at the top of the working door slot 3 (the working door slot is in the middle section, the upper section is the maintenance space, and the lower end is the water collection well).

[0046] The working door 1 comprises a working gate 1-1 with a lying door 1-3, a working gate lifting device 1-2, a working gate locking device 1-4 and a pressurized water-stopping system 1-5.

[0047] The working gate 1-1 is provided with a hydraulic opening and closing machine, a locking device, a hydraulic pump station and other equipment of a lying door 1-3. Normally, the lying door 1-3 on the working gate 1-1 is in a closed state. After the ship compartment is docked with the gate head, the lying door 1-3 is opened to form a ship passing passage. The lying door 1-3 can adapt to a water level fluctuation of a locking position height h1. When the water level fluctuation exceeds the adaptability of the lying door 1-3, the position of the working gate 1-1 is readjusted by raising or lowering a locking position height.

[0048] The adjustment of the working gate 1-1 is carried out under water conditions, and the lifting and lowering of the working gate 1-1 are carried out through the working gate lifting device 1-2.

[0049] The working door lifting device 1-2 includes piers 1-2-1 arranged on the left and right sides of the upper end of the working gate 1-1. A first hydraulic cylinder 1-2-2 is installed on the top of each pier 1-2-1. The lower end of the first hydraulic cylinder 1-2-2 is hinged to the working gate 1-1 through a plurality of connecting rods 1-2-3 hinged in sequence.

[0050] The stroke of the first hydraulic cylinder 1-2-2 matches the stroke of the working door from the No. 1 locking position to the No. 6 locking position.

[0051] The working door locking device 1-4 is arranged on both sides of the working door 1-1, and n water retaining locking grooves 3-1 with a spacing of h1 are set from top to bottom on both sides of the corresponding working door groove 3. After the adjustment of the working door 1-1 is completed, it is locked. The working door locking device 1-4 cooperates with the water retaining locking groove 3-1 to complete the door position locking of the working door 1.

[0052] The working gate locking device 1-4 comprises a locking plate 1-4-1, the upper end of which is rotatably mounted on the working gate 1-1 through a central axis, and the lower end of which is hinged to a second hydraulic cylinder 1-4-2 on the working gate 1-1. When the second hydraulic cylinder 1-4-2 is extended, the locking plate 1-4-1 is pushed into the water retaining locking groove 3-1, and when the second hydraulic cylinder 1-4-2 is retracted, the locking plate 1-4-1 is retracted to the working gate 1-1.

[0053] The locking plate 1-4-1 here has a vertical plane on its inner side, and the locking plate 1-4-1 can be limited by the vertical plate 1-4-3 on the working gate 1-1 when extended; and the corresponding bottom surface of the water retaining locking groove 3-1 in contact with the locking plate 1-4-1 is an inclined surface 3-1-1 inclined outward and downward, which can achieve complete locking after being in place.

[0054] The pressurized water stop system 1-5 is composed of two inner and outer pressurized water stops. When the working gate 1-1 is adjusted, the outer pressure is released, and the outer pressure is restored after the adjustment is completed. The two water stops can serve as backup for each other. If one of the water stops fails, the other water stop can complete the sealing independently.

[0055] The inspection door 2 includes a plurality of inspection stop beam doors 2-1, which are mainly used to block water when the working door 1 needs maintenance and inspection. According to the suspension time and the water level of the waterway, an appropriate number of inspection stop beam doors 2-1 are selected and stacked in the inspection door slot 4 to block water at the ship lift lock head when the working door 1 is maintained and inspected. The lifting and lowering of the inspection stop beam doors 2-1 are performed by the inspection door hoist 6. The inspection stop beam doors 2-1 are stacked in the inspection door warehouse 5 when not in use.

[0056] The inspection door opening and closing machine 6 is a bidirectional bridge machine arranged on a concrete frame. The bridge machine can run along the direction of water flow and perpendicular to the water flow. The track is laid on two lines of steel track beams, and the steel track beams are erected on the top of the concrete column.

[0057] The inter-door drainage system 7 includes a drainage pipe 7-1, the water inlet of which is located at the bottom between the working door slot 3 and the inspection door slot 4, and is used to drain all the water between the working door 1 and the inspection door 2. The water outlet of the drainage pipe 7-1 extends into the water collection well 8-7. A trash rack 7-2 is provided at the water inlet of the drainage pipe 7-1, and a first energy dissipation valve 7-3, a first inspection valve 7-4, and a first working valve 7-5 are installed on the drainage pipe 7-1 at intervals. The first energy dissipation valve 7-3, the first inspection valve 7-4, and the first working valve 7-5 are controlled by a drainage system control system 7-6.

[0058] The bottom drainage system 8 includes a drainage pipe 8-1, which is pumped by a drainage pump 8-2, and is equipped with a second energy dissipation valve 8-3, a second inspection valve 8-4, and a second working valve 8-5, which are controlled by a drainage system control system 8-6. The water inlet of the drainage pipe 8-1 is set in a water collection well 8-7, and the water outlet of the drainage pipe 8-1 is located at the external waterway.

[0059] The bottom drainage system 8 can be arranged in multiple groups according to the on-site drainage needs, and a suitable number of drainage pumps 8-7 can be started according to the water level of the collection well 8-8.

[0060] The working door inspection locking device 9 includes a third oil cylinder 9-1, which is connected to a locking beam 9-2. The corresponding working door slot 3 is provided with an inspection locking slot 3-2. During normal navigation, the locking beam 9-2 is retracted to the rear of the inspection locking slot 3-2, and is extended after the working door 1-1 is lifted to the inspection position to fix the working door 1-1 in the inspection position.

[0061] The number n of the water retaining locking grooves 3-1 arranged from top to bottom on the working gate groove 3 is determined by the maximum amplitude of the water level of the channel h 变 Determine, n=h 变 / h1.

[0062] Maintenance stacked beam door 2-1 number of sections n 检 The depth of the trough h 航 Decision, 检 =h 航 / h2, h2 is the appropriate height of each stoplog section determined according to the stoplog door design specifications.

[0063] The height h of the working gate 1-1 工 The maximum fluctuation of water level in the channel h 变 Decision, h 工 =h 变 +h 低 ,h 低 It is the height that meets normal navigation and water retaining safety when the working gate 1-1 is in the lowest water retaining locking groove 3-1.

[0064] Take the case where the water level of the channel changes from 62m to 74m and the minimum allowable water depth for ships is 4m as an example:

[0065] The lying doors 1-3 can adapt to a water level fluctuation of a locking position height h1, h1=2m;

[0066] The upper part of the working gate has a 1m safety water retaining height, and the lower part is 1m below the bottom of the channel;

[0067] Maximum fluctuation of water level in channel h 变 =74m-62m=12m;

[0068] Working gate water retaining locking groove 3-1 number n= h 变 / h1=12 / 2=6; that is, the working door slot is equipped with 6 lock slots in total, and the height of the upper and lower adjacent lock slots is h1=2m. The 6 lock slots are numbered 1-6 from bottom to top.

[0069] The depth of the navigation channel at the gate is 24m, and the appropriate height of each stacked beam is h2=3m;

[0070] Then the number of sections of the stacked beam door 2-1 to be inspected is n 检 =h 航 / h2=24m / 3m=8; that is, the maintenance stacked beam door 2-1 is provided with 8 sections in total, which are numbered 1-8.

[0071] Height of working gate 1-1 h 工 The maximum fluctuation of water level in the channel h 变 Decision, h 工 =h 变 +h低 ,h 低 It is equal to the minimum navigable water depth required for the ship lift + a water level fluctuation h1 + the surplus working door safety water retaining height.

[0072] Height of working gate 1-1 h 工 =h 变 +h 低 =12m+4+1+1=18m.

[0073] The height of the bottom of the working gate slot from the bottom of the channel is greater than the height from the No. 1 locking slot to the No. 6 locking slot plus a certain reserved height.

[0074] Embodiment 1:

[0075] When the water level in the channel changes rapidly from 65m to 66m, the water level detection system determines that the water level in the channel will continue to rise, and it is necessary to adjust the height of one lock slot upward to adjust the door position of the working gate 1-1.

[0076] Step 1): Run the pressurized water stop system 1-5 to release the pressure of the outer water stop.

[0077] Step 2): Operate the working door lifting device 1-2 to lift the working door 1-1 to the middle position of the No. 2 locking slot, operate the working door locking device 1-4, make the locking plate 1-4-1 of the working door locking device 1-4 disengage from the No. 2 locking slot, and unlock the working door 1-1.

[0078] Step 3): Operate the working door lifting device 1-2 to lift the working door 1-1 to the middle position of the No. 3 locking slot, operate the working door locking device 1-4, and make the locking plate 1-4-1 of the working door locking device 1-4 extend into the No. 3 locking slot; operate the working door lifting device 1-2 to lower the working door 1-1 to the corresponding elevation of the No. 3 locking slot, and the locking takes effect when the locking plate 1-4-1 completes contact with the bottom surface of the No. 3 locking slot.

[0079] Step 4): Run the pressurized water stop system 1-5 to restore the outer water stop pressure.

[0080] Embodiment 2:

[0081] When the water level in the channel changes rapidly from 71m to 70m, the water level detection system determines that the water level in the channel will continue to drop, and it is necessary to adjust the height of one lock slot downward to adjust the door position of the working gate 1-1.

[0082] Step 1): Run the pressurized water stop system 1-5 to release the pressure of the outer water stop.

[0083] Step 2): Operate the working door lifting device 1-2 to lift the working door 1-1 to the middle position of the No. 5 locking slot, operate the working door locking device 1-4, make the locking plate 1-4-1 of the working door locking device 1-4 disengage from the No. 5 locking slot, and unlock the working door 1-1.

[0084] Step 3): Run the working door lifting device 1-2 to lower the working door 1-1 to the middle position of the No. 4 locking slot, operate the working door locking device 1-4, and make the locking plate 1-4-1 of the working door locking device 1-4 extend into the No. 4 locking slot; run the working door lifting device 1-2 to lower the working door 1-1 to the corresponding elevation of the No. 4 locking slot, and the locking takes effect when the locking plate 1-4-1 of the working door locking device 1-4 completes contact with the bottom surface of the No. 4 locking slot.

[0085] Step 4): Run the pressurized water stop system to restore the outer water stop pressure.

[0086] Embodiment 3:

[0087] When the ship lift needs to be stopped for a long time for inspection and maintenance, the inspection door 2 needs to be lowered to block water and the working door 1 needs to be lifted to the inspection position and locked.

[0088] Step 1): Run the inspection door hoist 6 to the top of the No. 1 inspection stacked beam door, lift a section of the inspection stacked beam door 2-1 through the inspection door hoist 6 and drop it into the inspection door slot 4, and operate the door connecting device of the inspection door hoist 6 to disengage the inspection stacked beam door 2-1.

[0089] Step 2): Repeat step 1) until 8 sections of maintenance stacked beam doors 2-1 are dropped into the maintenance door slot 4 and stacked, keeping the door connecting device of the maintenance door opening and closing machine 6 connected to the maintenance stacked beam door 2-1; here, the door connecting device is connected to the uppermost maintenance stacked beam door 2-1, so that the maintenance water-blocking operation can be carried out at any time.

[0090] Step 3): Use the inter-door drainage system 7 to drain all the water between the working door 1 and the inspection door 2, and the water is discharged into the collection well 8-7 of the bottom drainage system 8, and then the water is pumped to the waterway through the bottom drainage system 8.

[0091] Step 4): Run the pressurized water stop system 1-5 to release all the pressure of the inner and outer water stops.

[0092] Step 5): Operate the working door lifting device 1-2 to lift the working door 1-1 until the locking plate 1-4-1 is located in the middle position of the locking groove, operate the working door locking device 1-4, so that the locking plate 1-4-1 of the working door locking device 1-4 is disengaged from the locking groove, and the working door 1-1 is unlocked.

[0093] Step 6): After operating the working gate lifting device 1-2 to lift the working gate 1-1 to the highest position, use the lifting machinery to remove the multiple connecting rods 1-2-3, extend the cylinder 1-2-2 to directly connect with the working gate 1-1, and then use the cylinder 1-2-2 to continue to lift the working gate 1-1 to the maintenance locking groove 3-2. At this time, drive the third cylinder 9-1, and the third cylinder 9-1 drives the locking beam 9-2 to extend to the bottom of the working gate 1-1 for support, thereby completing the locking of the working gate 1-1 in the maintenance position.

Claims

1. A lifting type gate head water retaining system suitable for rapid water level changes, characterized by: It comprises a working door (1), an inspection door (2), a working door slot (3), an inspection door slot (4), an inspection door garage (5), an inspection door opening and closing machine (6), a door inter-drainage system (7), a bottom drainage system (8), and a working door inspection locking device (9); The bottom drainage system (8), the working door slot (3), the door inter-drainage system (7), and the inspection door slot (4) are arranged to extend outward from the ship lift cabin section; The inspection door hoist (6) and the inspection door warehouse (5) are arranged at the top of the gate head navigation channel; The working door inspection locking device (9) is arranged at the top of the working door slot (3); The working door (1) comprises a working gate (1-1) with a lying door (1-3); the working gate (1-1) is placed in a working gate slot (3) and the upper end is lifted and lowered by a working door lifting device (1-2); working gate locking devices (1-4) are arranged on the left and right sides of the working gate (1-1); a plurality of groups of water retaining locking grooves (3-1) are arranged at intervals along the height direction on the corresponding working door slot (3); the working gate locking devices (1-4) are locked or unlocked with the corresponding water retaining locking grooves (3-1); The inspection door (2) comprises a multi-section inspection stacked beam door (2-1), and the inspection stacked beam door (2-1) is lifted and lowered by an inspection door hoist (6); the multi-section inspection stacked beam door (2-1) is placed from top to bottom in the inspection door slot (4) to block water at the gate head of the ship lift when inspection is carried out; The working gate groove (3) extends downwards to a certain depth along the bottom of the waterway, and when the working gate (1-1) is adjusted from the lowest position to the highest position, the bottom of the working gate (1-1) is always lower than the bottom of the waterway; The working door lifting device (1-2) comprises piers (1-2-1) arranged on the left and right sides of the upper end of the working door (1-1), a first hydraulic cylinder (1-2-2) being installed on the top of each pier (1-2-1), and the lower end of the first hydraulic cylinder (1-2-2) being hinged to the working door (1-1) via a plurality of connecting rods (1-2-3) hinged in sequence; The working gate locking device (1-4) comprises a locking plate (1-4-1), the upper end of the locking plate (1-4-1) being rotatably mounted on the working gate (1-1) via a central axis, and the lower end of the locking plate (1-4-1) being hinged to a second hydraulic cylinder (1-4-2) on the working gate (1-1); when the second hydraulic cylinder (1-4-2) is extended, the locking plate (1-4-1) is pushed into a water retaining locking groove (3-1); when the second hydraulic cylinder (1-4-2) is retracted, the locking plate (1-4-1) is retracted to the working gate (1-1).

2. The lifting type gate head water retaining system suitable for rapid water level changes according to claim 1, characterized in that: A vertical plane is provided on the inner side of the locking plate (1-4-1), and the locking plate (1-4-1) is limited by a vertical plate (1-4-3) on the working door (1-1) when extended; and the bottom surface of the corresponding water retaining locking groove (3-1) in contact with the locking plate (1-4-1) is an inclined surface (3-1-1) inclined outwardly and downwardly.

3. The lifting type gate head water retaining system suitable for rapid water level changes according to claim 1, characterized in that: A pressurized water stop system (1-5) is installed on the working door (1), and the pressurized water stop system (1-5) consists of two inner and outer pressurized water stops; when the door position of the working door (1-1) is adjusted, the outer pressure is released, and after the door position adjustment is completed, the outer pressure is restored.

4. The lifting type gate head water retaining system suitable for rapid water level changes according to claim 1, characterized in that: The inter-door drainage system (7) comprises a drainage pipe (7-1), the water inlet of the drainage pipe (7-1) is located at the bottom between the working door slot (3) and the inspection door slot (4), the water outlet of the drainage pipe (7-1) extends into the water collection well (8-7), the water inlet of the drainage pipe (7-1) is provided with a trash rack (7-2), and the drainage pipe (7-1) is provided with a first energy dissipation valve (7-3), a first inspection valve (7-4), and a first working valve (7-5) at intervals. The first energy dissipation valve (7-3), the first inspection valve (7-4), and the first working valve (7-5) are provided on the drainage pipe (7-1). -4), the first working valve (7-5) is controlled by the drainage system control system (7-6); the bottom drainage system (8) comprises a drainage pipe (8-1), the drainage pipe (8-1) pumps water by a drainage pump (8-2), and a second energy dissipation valve (8-3), a second inspection valve (8-4), and a second working valve (8-5) are installed on the drainage pipe (8-1), and the second energy dissipation valve (8-3), the second inspection valve (8-4), and the second working valve (8-5) are controlled by the drainage system control system (8-6).

5. The lifting type gate head water retaining system suitable for rapid water level changes according to claim 1, characterized in that: The working door inspection and locking device (9) comprises a third oil cylinder (9-1), the third oil cylinder (9-1) being arranged in the inspection and locking groove (3-2) at the upper part of the working door groove (3) on the left and right sides respectively, and the third oil cylinder (9-1) being connected to the locking beam (9-2); during normal navigation, the locking beam (9-2) is retracted to the rear of the inspection and locking groove (3-2), and is extended after the working door (1-1) is lifted to the inspection position, thereby fixing the working door (1-1) in the inspection position.

6. The lifting type gate head water retaining system suitable for rapid water level changes according to claim 1, characterized in that: The height h of the working gate (1-1) 工 The maximum fluctuation of water level in the channel h 变 Decision, h 工 =h 变 +h 低 ,h 低 It is the height that satisfies normal navigation and water retaining safety when the working gate (1-1) is in the lowest water retaining locking groove (3-1).

7. The lifting type gate head water retaining system suitable for rapid water level changes according to claim 1, characterized in that: The number n of the water retaining locking grooves (3-1) is determined by the maximum fluctuation range h of the water level in the waterway. 变 Decision, n=h 变 / h1; Number of sections of the stacked beam door (2-1) n 检 The depth of the trough h 航 Decision, 检 =h 航 / h2, h2 is the appropriate height of each stoplog section determined according to the stoplog door design specifications.

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