Lifting gate for dam

Abstract

The lifting gate for the dam comprises a base, two sets of symmetrical and parallel supporting columns are arranged on the middle side of the top of the base, a plurality of first positioning clamping grooves are formed in the top of the base, a top plate is fixedly connected to the tops of the supporting columns, and a plurality of second positioning clamping grooves are formed in the inner wall of the top plate. Two guide plates are fixedly connected to one side of the supporting column and are symmetrically distributed, a guide groove is formed in the inner wall of one guide plate, and a driving mechanism is installed on one side of the other guide plate. Through the arrangement of the first buffer mechanism and the second buffer mechanism, when the gate ascends or descends under the action of spring force of a first buffer spring and a second buffer spring, the influence of gravity on the gate can be effectively reduced, and effective buffer is carried out; and by arranging the driving mechanism, the driving motor can drive the gate to ascend and descend, the working intensity is reduced, and the opening and closing efficiency of the gate is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dams, in particular to a lifting gate for dams. Background Art

[0002] Dams are masterpieces of human engineering, used to control water flow, supply water, generate electricity and prevent floods. Lift gates are an important part of dams. They are designed as liftable gates to regulate water flow and water level. On dams, lift gates have various functions. When the water level of the reservoir needs to be adjusted, the lift gates can be raised or lowered to control the outflow or inflow of water. When floods come, the lift gates can be closed to prevent floods from flowing downstream, thereby reducing the impact of floods. By adjusting the height of the lift gates, the speed and pressure of the water flow can be controlled, thereby affecting the rotation speed of the turbine to generate electricity. The lift gates can adjust the water storage capacity of the reservoir as needed to ensure water supply and irrigation needs while protecting the ecosystem. Some dams are built on rivers as channels for water transportation. The lift gates can be raised or lowered to allow ships to pass through.

[0003] However, the existing dam lifting gate is too heavy, and long-term use can easily cause damage to the gate, thereby reducing its service life. At the same time, the existing dam lifting gate generally needs to be manually controlled to open and close the gate, which not only increases the workload but also reduces the efficiency of gate opening and closing. For this reason, we propose a dam lifting gate. Utility Model Content

[0004] The purpose of the utility model is to provide a lifting gate for a dam to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, a lifting gate for a dam is provided, comprising a base, two groups of symmetrical and parallel support columns are arranged on the middle side of the top of the base, a plurality of first positioning slots are opened on the top of the base, a top plate is fixedly connected to the top of the support column, a plurality of second positioning slots are opened on the inner wall of the top plate, a guide plate is fixedly connected to one side of the support column, the number of the guide plates is two and they are symmetrically distributed, a guide groove is opened on the inner wall of one guide plate, and a driving mechanism is installed on one side of the other guide plate.

[0006] The driving mechanism includes a driving motor, a first connecting shaft, a first conveying roller, a first conveying belt, a first bearing seat, a second connecting shaft, a second conveying roller, a second conveying belt, a third connecting shaft, and a second bearing seat. The driving motor is fixedly installed at the bottom of the top plate, the output end of the driving motor is fixedly connected to the first connecting shaft, the outer wall of the first connecting shaft is fixedly connected to the first conveying roller, the outer wall of the first conveying roller is transmission-connected to the first conveying belt, the number of the first conveying rollers is two, the inner wall of the first conveying roller on a side away from the first connecting shaft is fixedly connected to the second connecting shaft, the first connecting shaft on a side away from the driving motor is fixedly connected to the first bearing seat, the second connecting shaft on a side away from the first conveying roller is fixedly connected to the second conveying roller, the outer wall of the second conveying roller is transmission-connected to the second conveying belt, the number of the second conveying rollers is two, the inner wall of the second conveying roller on a side away from the second connecting shaft is fixedly connected to the third connecting shaft, the outer wall of the third connecting shaft is fixedly connected to the driving gear, and the outer wall of the third connecting shaft on a side away from the second conveying belt is fixedly connected to the second bearing seat.

[0007] The inner wall of the guide groove is slidably connected with a lifting gate, and the lifting gate includes a gate body, a guide block, a spur rack, a first positioning clamping column, and a second positioning clamping column.

[0008] The top of the gate body is fixedly connected with a plurality of first positioning posts, and the bottom of the gate body is fixedly connected with a plurality of second positioning posts, the number of the second positioning posts corresponds one-to-one to the number of the first positioning slots, and the number of the first positioning posts corresponds one-to-one to the number of the second positioning slots.

[0009] A guide block is fixedly connected to one side of the gate body, and the guide block is slidably connected to the inner wall of the guide groove. A spur rack is fixedly connected to one side of the gate body away from the guide block.

[0010] A first buffer mechanism is provided on the inner wall of the second positioning slot, and the first buffer mechanism includes a first fixed block, a first buffer spring, and a first buffer block. The first fixed block is fixedly connected to the inner wall of the second positioning slot, and the first fixed block and the first buffer spring are elastically connected via the first buffer block. The first buffer spring is movably connected to the inner wall of the second positioning slot.

[0011] A second buffer mechanism is provided on the inner wall of the first positioning slot, and the second buffer mechanism includes a second fixed block, a second buffer spring, and a second buffer block. The second fixed block is fixedly connected to the inner wall of the first positioning slot, and the second fixed block and the second buffer spring are elastically connected via the second buffer block. The second buffer spring is movably connected to the inner wall of the first positioning slot.

[0012] The beneficial effects of the utility model are as follows: by arranging the first buffer mechanism and the second buffer mechanism, under the action of the spring force of the first buffer spring and the second buffer spring, the influence of gravity on the gate can be effectively reduced when the gate rises or falls, thereby performing effective buffering; by arranging the driving mechanism, the driving motor can drive the gate to rise and fall, thereby reducing the workload and improving the efficiency of gate opening and closing.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall three-dimensional structural diagram of a lifting gate for a dam according to the utility model;

[0016] Figure 2 This is an exploded diagram of a driving mechanism of a dam lifting gate according to the utility model;

[0017] Figure 3 It is a partial cross-sectional view of the connection between the lifting gate and the guide plate of a lifting gate for a dam according to the utility model;

[0018] Figure 4 This is a cross-sectional view of a first buffer mechanism for a dam lifting gate according to the utility model;

[0019] Figure 5 This is a cross-sectional view of a second buffer mechanism of a dam lifting gate according to the utility model;

[0020] Legend:

[0021] 1. Base; 3. First positioning slot; 4. Support column; 5. Top plate; 6. Second positioning slot; 8. Driving mechanism; 9. Guide plate; 91. Guide slot; 11. Lifting gate; 12. First buffer mechanism; 13. Second buffer mechanism; 801. Driving motor; 802. First connecting shaft; 803. First conveying roller; 804. First conveying belt; 805. First bearing seat; 806. Second connecting shaft; 807. Second conveying roller; 808. Second conveying belt; 809. Third connecting shaft; 810. Second bearing seat; 811. Driving gear; 111. Gate body; 112. Guide block; 113. Straight rack; 114. First positioning column; 115. Second positioning column; 121. First fixing block; 122. First buffer spring; 123. First buffer block; 131. Second fixing block; 132. Second buffer spring; 133. Second buffer block. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figures 1 to 5 The utility model embodiment is a lifting gate for a dam, which includes a base 1, two groups of symmetrical and parallel support columns 4 are arranged on the middle side of the top of the base 1, and a sealing cover plate is arranged at the openings of the opposite surfaces of the two groups of support columns 4. The sealing cover plate is slidably connected to the surface of the lifting gate 11, which plays a waterproof role on the one hand and protects the driving mechanism 8 on the other hand to extend the service life of the device (this is easy to implement for personnel in this field in the prior art, and the sealing cover plate is not drawn in the figure for the convenience of showing the internal structure). A plurality of first positioning grooves 3 are provided on the top of the base 1, a top plate 5 is fixedly connected to the top of the support column 4, and a plurality of second positioning grooves 6 are provided on the inner wall of the top plate 5, and a guide plate 9 is fixedly connected to one side of the support column 4. The number of guide plates 9 is two and they are symmetrically distributed, a guide groove 91 is provided on the inner wall of one guide plate 9, and a driving mechanism 8 is installed on one side of the other guide plate 9.

[0024] The driving mechanism 8 includes a driving motor 801, a first connecting shaft 802, a first conveying roller 803, a first conveying belt 804, a first bearing seat 805, a second connecting shaft 806, a second conveying roller 807, a second conveying belt 808, a third connecting shaft 809, and a second bearing seat 810. The driving motor 801 is fixedly mounted on the bottom of the top plate 5. The output end of the driving motor 801 is fixedly connected to the first connecting shaft 802. The outer wall of the first connecting shaft 802 is fixedly connected to the first conveying roller 803. The outer wall of the first conveying roller 803 is transmission-connected to the first conveying belt 804. There are two first conveying rollers 803. One of the first conveying rollers 803 is away from the first connecting shaft 802. A second connecting shaft 806 is fixedly connected to the inner wall of the side, a first bearing seat 805 is fixedly connected to the side of the first connecting shaft 802 away from the driving motor 801, a second connecting shaft 806 is fixedly connected to the side away from the first conveying roller 803, an outer wall of the second conveying roller 807 is transmission-connected to the second conveying belt 808, there are two second conveying rollers 807, a third connecting shaft 809 is fixedly connected to the inner wall of the second conveying roller 807 away from the second connecting shaft 806, a driving gear 811 is fixedly connected to the outer wall of the third connecting shaft 809, and a second bearing seat 810 is fixedly connected to the outer wall of the third connecting shaft 809 away from the second conveying belt 808.

[0025] The inner wall of the guide groove 91 is slidably connected with a lifting gate 11 , and the lifting gate 11 includes a gate body 111 , a guide block 112 , a spur rack 113 , a first positioning column 114 , and a second positioning column 115 .

[0026] The top of the gate body 111 is fixedly connected with a plurality of first positioning columns 114, and the bottom of the gate body 111 is fixedly connected with a plurality of second positioning columns 115. The number of the second positioning columns 115 corresponds one-to-one to the number of the first positioning slots 3, and the number of the first positioning columns 114 corresponds one-to-one to the number of the second positioning slots 6.

[0027] A guide block 112 is fixedly connected to one side of the gate body 111 , and the guide block 112 is slidably connected to the inner wall of the guide groove 91 . A spur rack 113 is fixedly connected to one side of the gate body 111 away from the guide block 112 .

[0028] A first buffer mechanism 12 is provided on the inner wall of the second positioning slot 6. The first buffer mechanism 12 includes a first fixed block 121, a first buffer spring 122, and a first buffer block 123. The first fixed block 121 is fixedly connected to the inner wall of the second positioning slot 6. The first fixed block 121 and the first buffer spring 122 are elastically connected via the first buffer block 123. The first buffer spring 122 is movably connected to the inner wall of the second positioning slot 6.

[0029] A second buffer mechanism 13 is provided on the inner wall of the first positioning slot 3. The second buffer mechanism 13 includes a second fixed block 131, a second buffer spring 132, and a second buffer block 133. The second fixed block 131 is fixedly connected to the inner wall of the first positioning slot 3. The second fixed block 131 and the second buffer spring 132 are elastically connected via the second buffer block 133. The second buffer spring 132 is movably connected to the inner wall of the first positioning slot 3.

[0030] Among them, the first connecting shaft 802 passes through the first conveying roller 803, the first bearing seat 805, and the guide plate 9; the second connecting shaft 806 passes through the first conveying roller 803, the second conveying roller 807, and the guide plate 9; the third connecting shaft 809 passes through the second bearing seat 810, the driving gear 811, the second conveying roller 807, and the guide plate 9; a plurality of mounting holes are provided on both sides of the guide plate 9; the first bearing seat 805 and the second bearing seat 810 are fixedly connected to the outer wall of the guide plate 9; the driving gear 811 and the spur rack 113 are meshed with each other.

[0031] Working principle: When it is necessary to use a lifting gate for a dam of the utility model, start the driving motor 801, and the output end of the driving motor 801 drives the first connecting shaft 802 to rotate, and then the first conveyor belt 804 rotates to drive the second connecting shaft 806 to rotate, so that the second conveyor belt 808 drives the driving gear 811 connected to the third connecting shaft 809 to rotate, and the driving gear 811 is engaged with the spur rack 113, and the guide block 112 is slidably connected to the inner wall of the guide groove 91 to slide to realize the lifting and lowering of the gate. By setting the first buffer mechanism 12 and the second buffer mechanism 13, under the action of the first buffer spring 122, the lifting gate 11 reduces the buffer when it rises, and under the action of the second buffer spring 132, the lifting gate 11 reduces the buffer when it descends, which can effectively reduce the influence of gravity on the gate when the gate rises or falls, and perform effective buffering.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A lifting gate for a dam, comprising a base (1), characterized in that: Two groups of support columns (4) are symmetrically arranged in parallel on the middle side of the top of the base (1); a plurality of first positioning slots (3) are provided on the top of the base (1); a top plate (5) is fixedly connected to the top of the support column (4); a plurality of second positioning slots (6) are provided on the inner wall of the top plate (5); a guide plate (9) is fixedly connected to one side of the support column (4); the number of the guide plates (9) is two and they are symmetrically distributed; a guide groove (91) is provided on the inner wall of one guide plate (9); a driving mechanism (8) is installed on one side of the other guide plate (9); The driving mechanism (8) comprises a driving motor (801), a first connecting shaft (802), a first conveying roller (803), a first conveying belt (804), a first bearing seat (805), a second connecting shaft (806), a second conveying roller (807), a second conveying belt (808), a third connecting shaft (809), and a second bearing seat (810); the driving motor (801) is fixedly mounted on the bottom of the top plate (5); an output end of the driving motor (801) is fixedly connected to the first connecting shaft (802); an outer wall of the first connecting shaft (802) is fixedly connected to the first conveying roller (803); an outer wall of the first conveying roller (803) is transmission-connected to the first conveying belt (804); there are two first conveying rollers (803); and the first conveying rollers (803) are spaced apart from the first connecting shaft (80 2) is fixedly connected to an inner wall of one side thereof with a second connecting shaft (806), a side of the first connecting shaft (802) away from the driving motor (801) is fixedly connected to a first bearing seat (805), a side of the second connecting shaft (806) away from the first conveying roller (803) is fixedly connected to a second conveying roller (807), an outer wall of the second conveying roller (807) is transmission-connected to a second conveying belt (808), the number of the second conveying rollers (807) is two, a side of the second conveying roller (807) away from the second connecting shaft (806) is fixedly connected to a third connecting shaft (809), an outer wall of the third connecting shaft (809) is fixedly connected to a driving gear (811), and a side of the third connecting shaft (809) away from the second conveying belt (808) is fixedly connected to a second bearing seat (810).

2. A dam lifting gate according to claim 1, characterized in that: The inner wall of the guide groove (91) is slidably connected with a lifting gate (11), and the lifting gate (11) comprises a gate body (111), a guide block (112), a spur rack (113), a first positioning clamping column (114), and a second positioning clamping column (115).

3. A dam lifting gate according to claim 2, characterized in that: A plurality of first positioning posts (114) are fixedly connected to the top of the gate body (111), and a plurality of second positioning posts (115) are fixedly connected to the bottom of the gate body (111), wherein the number of the second positioning posts (115) corresponds one-to-one to the number of the first positioning slots (3), and the number of the first positioning posts (114) corresponds one-to-one to the number of the second positioning slots (6).

4. A dam lifting gate according to claim 3, characterized in that: A guide block (112) is fixedly connected to one side of the gate body (111), and the guide block (112) is slidably connected to the inner wall of the guide groove (91). A spur rack (113) is fixedly connected to the side of the gate body (111) away from the guide block (112).

5. A dam lifting gate according to claim 4, characterized in that: The inner wall of the second positioning slot (6) is provided with a first buffer mechanism (12), the first buffer mechanism (12) comprises a first fixed block (121), a first buffer spring (122), and a first buffer block (123), the first fixed block (121) is fixedly connected to the inner wall of the second positioning slot (6), the first fixed block (121) and the first buffer spring (122) are elastically connected via the first buffer block (123), and the first buffer spring (122) is movably connected to the inner wall of the second positioning slot (6).

6. A dam lifting gate according to claim 5, characterized in that: The inner wall of the first positioning slot (3) is provided with a second buffer mechanism (13), the second buffer mechanism (13) comprises a second fixed block (131), a second buffer spring (132), and a second buffer block (133), the second fixed block (131) is fixedly connected to the inner wall of the first positioning slot (3), the second fixed block (131) and the second buffer spring (132) are elastically connected via the second buffer block (133), and the second buffer spring (132) is movably connected to the inner wall of the first positioning slot (3).

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