Miter gate with self-locking function

Abstract

The utility model relates to the technical field of miter gates, and discloses a miter gate with a self-locking function, which comprises a gate bottom plate, two gate vertical plates are fixedly mounted on the upper surface of the gate bottom plate, two second sliding grooves are formed in the upper surface of the gate bottom plate, an opening and closing mechanism is arranged on the gate bottom plate, and the opening and closing mechanism is connected with the gate vertical plates. The opening and closing mechanism comprises a fixing plate, a first sliding groove, two first fixing blocks, two fixing rods, two herringbone gates, two second fixing blocks, two first supporting rods, a fixing stick, a second supporting rod, a motor and two sliding blocks, and the two first fixing blocks are fixedly installed on the opposite faces of two gate vertical plates correspondingly; according to the herringbone gate with the self-locking function, the two herringbone gate bodies synchronously operate to be opened or closed, the possibility that the herringbone gate bodies are not synchronously closed due to leading or lagging of signals is reduced, and the herringbone gate is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of miter gates, in particular to a miter gate with a self-locking function. Background Technique

[0002] A miter gate is composed of two door leaves on the left and right that rotate around vertical door shafts inside the side walls of the waterway respectively. When the waterway is closed, it forms a "human" shape when viewed from above. When the miter gate works, the two door leaves form a three-hinged arch to bear the water pressure; when the waterway is open, the two door leaves are located in the door niches of the side walls, not bearing the water pressure and being in a non-working state. Generally, a miter gate can only bear unidirectional water pressure and can only operate under the condition that the water levels upstream and downstream are equal and in a static water state. It is most commonly used in the ship locks of navigable rivers and is arranged as a working gate at the upper and lower lock heads.

[0003] Chinese Patent No. CN201746819U discloses a miter gate system, especially a miter gate system with synchronous closing control. It includes miter gates on the left and right sides, hydraulic hoists for the miter gates on both sides respectively, a hydraulic pump station and a control cabinet. Full-open and full-close position switches are provided on the hydraulic hoists for the miter gates on both sides respectively, and a pre-closing waiting position limit switch is also provided. A relay switch cooperating with the pre-closing waiting position limit switch is correspondingly arranged in the control circuit.

[0004] The above solution makes the miter gates on both sides close synchronously when approaching full closure through the cooperation of limit switches and relay switches. However, the inventor believes that when the limit switches and relays are aged or the signals are interfered, the miter gates on both sides are likely to close out of sync due to signal lag or lead, resulting in difficulty for the miter gates on both sides to close completely. In view of this, a miter gate with a self-locking function is now proposed. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a miter gate with a self-locking function, which solves the problem of asynchronous opening and closing of the miter gate.

[0007] (2) Technical Solutions

[0008] To achieve the purpose of synchronous opening and closing of the miter gate through mechanical device opening, the utility model provides the following technical solution: A miter gate with a self-locking function includes a gate bottom plate, and two gate vertical plates are fixedly installed on the upper surface of the gate bottom plate. Two second chutes are opened on the upper surface of the gate bottom plate;

[0009] Among them, an opening and closing mechanism is provided on the bottom plate of the gate. The opening and closing mechanism includes a fixed plate, a first chute, two first fixing blocks, two fixed rods, two miter gates, two second fixing blocks, two first support rods, a fixed rod, a second support rod, a motor, and two sliding blocks.

[0010] Preferably, the two first fixing blocks are respectively fixedly installed on the opposite surfaces of the two gate vertical plates, and the outer surfaces of the two fixed rods are respectively rotatably connected to the inner surfaces of the two first fixing blocks.

[0011] Preferably, the two miter gates are respectively fixedly sleeved on the outer surfaces of the two fixed rods;

[0012] Among them, the sliding blocks are respectively fixedly installed on the lower surfaces of the two miter gates, and the two sliding blocks are respectively slidably sleeved on the inner surfaces of the two second chutes.

[0013] Preferably, the two second fixing blocks are respectively fixedly installed on the rear surfaces of the two miter gates, and the two first support rods are respectively rotatably connected to the rear surfaces of the two second fixing blocks.

[0014] Preferably, the fixed rod is rotatably sleeved on the inner surfaces of the two first support rods, and the second support rod is fixedly sleeved on the outer surface of the fixed rod;

[0015] Among them, the output shaft of the motor is fixedly sleeved on the inner surface of the second support rod.

[0016] Preferably, the fixed plate is fixedly installed on the lower surface of the motor, and the fixed plate is fixedly installed on the opposite surfaces of the two gate vertical plates;

[0017] Among them, the first chute is opened on the upper surface of the fixed plate, and the first chute is slidably connected to the fixed rod.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present utility model provides a miter gate with a self-locking function, having the following beneficial effects:

[0020] 1. For the miter gate with a self-locking function, the motor drives the second support rod to move forward along the first chute, that is, the second support rod drives the two first support rods rotatably sleeved on the outer surface to move forward through the fixed rod fixedly sleeved on the inner surface. When the first support rod moves forward and is fixed, it moves forward through the second fixing block rotatably connected at the front end, that is, it pushes the two miter gates to rotate on the inner surface of the first fixing block through the fixed rod, completing the opening of the miter gate to facilitate the passage of water flow. And when it needs to be closed, it can be reversely rotated by the motor to pull the miter gate to form self-locking for closing. The two miter gates can be synchronously opened or closed, reducing the possibility of asynchronous closing of the miter gate caused by signal lead or lag, which is more convenient.

[0021] 2. The miter gate with a self-locking function is guided by the second chute and the sliding block, so that during actual use, water can flow through the chute during the opening and closing process, making the water pressure of the miter gate synchronous and preventing the water pressure on one side of the miter gate from being too large, resulting in a situation where it cannot be opened or closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Structural schematic diagram of a miter gate with a self-locking function according to the present invention;

[0023] Figure 2 Structural schematic diagram of the bottom plate of the gate according to the present invention;

[0024] Figure 3 Structural schematic diagram of the miter gate according to the present invention.

[0025] In the figure: 1, bottom plate of the gate; 2, vertical plate of the gate; 3, fixing plate; 4, first chute; 5, second chute; 6, first fixing block; 7, fixing rod; 8, miter gate; 9, second fixing block; 10, first support rod; 11, fixing bar; 12, second support rod; 13, motor; 14, sliding block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-3 , the present invention provides a new technical solution: a miter gate with a self-locking function, including a bottom plate 1 of the gate, two vertical plates 2 of the gate are fixedly installed on the upper surface of the bottom plate 1 of the gate, and two second chutes 5 are opened on the upper surface of the bottom plate 1 of the gate;

[0028] Among them, an opening and closing mechanism is provided on the bottom plate 1 of the gate. The opening and closing mechanism includes a fixing plate 3, a first chute 4, two first fixing blocks 6, two fixing rods 7, two miter gates 8, two second fixing blocks 9, two first support rods 10, a fixing bar 11, a second support rod 12, a motor 13 and two sliding blocks 14.

[0029] Furthermore, two first fixing blocks 6 are respectively fixedly installed on the opposite surfaces of the two vertical plates 2 of the gate, and the outer surfaces of the two fixing rods 7 are respectively rotatably connected to the inner surfaces of the two first fixing blocks 6.

[0030] Further, the two miter gates 8 are respectively fixedly sleeved on the outer surfaces of the two fixed rods 7;

[0031] Among them, the sliding blocks 14 are respectively fixedly installed on the lower surfaces of the two miter gates 8, and the two sliding blocks 14 are respectively slidably sleeved on the inner surfaces of the two second chutes 5.

[0032] Further, the two second fixing blocks 9 are respectively fixedly installed on the rear surfaces of the two miter gates 8, and the two first support rods 10 are respectively rotatably connected to the rear surfaces of the two second fixing blocks 9.

[0033] Further, the fixing rod 11 is rotatably sleeved on the inner surfaces of the two first support rods 10, and the second support rod 12 is fixedly sleeved on the outer surface of the fixing rod 11;

[0034] Among them, the output shaft of the motor 13 is fixedly sleeved on the inner surface of the second support rod 12.

[0035] Further, the fixing plate 3 is fixedly installed on the lower surface of the motor 13, and the fixing plate 3 is fixedly installed on the opposite surfaces of the two gate vertical plates 2;

[0036] Among them, the first chute 4 is opened on the upper surface of the fixing plate 3, and the first chute 4 is slidably connected to the fixing rod 11;

[0037] When the miter gate with a self-locking function is in use, by starting the motor 13, the motor 13 outputs power to the second support rod 12 fixedly sleeved on the outer surface of the output shaft through operation, causing it to rotate. The second support rod 12 drives the fixing rod 11 fixedly sleeved on the inner surface to slide forward in the first chute 4 opened on the upper surface of the fixing plate 3. At the same time, the first fixing rod 11 drives the two first support rods 10 rotatably sleeved on the outer surface to move forward. While the two first support rods 10 are moving forward, they apply a forward thrust to the two second fixing blocks 9 rotatably connected at the front end, causing them to move forward. At the same time, the two second fixing blocks 9 apply a forward thrust to the two miter gates 8 fixedly installed on the front surface, causing the two miter gates 8 to move forward along the two second chutes 5 through the two sliding blocks 14 fixedly installed on the lower surface. While moving, they rotate on the inner surfaces of the two first fixing blocks 6 through the two fixed rods 7 fixedly sleeved on the inner surface, and the opening of the miter gate 8 can be completed. By starting the reverse rotation of the motor 13, the self-locking of the gate can be completed;

[0038] The miter gate with a self-locking function drives the second strut to move forward along the first chute through a motor. That is, the second strut drives the two first struts rotatably sleeved on the outer surface to move forward through the fixing rod fixedly sleeved on the inner surface. When the first strut moves forward and is fixed, it moves forward through the second fixing block rotatably connected at the front end. That is, it pushes the two miter gates to rotate on the inner surface of the first fixing block through the fixing rod, completing the opening of the miter gate to facilitate the flow of water. And when it needs to be closed, it can be reversely rotated by the motor to pull the miter gate to form self-locking for closing. It can make the two miter gates operate synchronously to open or close, reducing the possibility of the miter gates closing out of sync due to signal lead or lag, which is more convenient. The miter gate with a self-locking function forms a guiding effect on the miter gate through the second chute and the sliding block. In actual use, during the opening and closing process, the water can flow through the chute, making the water pressure of the miter gate synchronous and preventing the water pressure on one side of the miter gate from being too large, resulting in the situation where it cannot be opened or closed.

[0039] Working principle: When the miter gate with a self-locking function is in use, by starting the motor 13, the motor 13 outputs power to the second strut 12 fixedly sleeved on the outer surface of the output shaft through operation, causing it to rotate. The second strut 12 drives the fixing rod 11 fixedly sleeved on the inner surface to slide forward in the first chute 4 opened on the upper surface of the fixing plate 3. At the same time, the first fixing rod 11 drives the two first struts 10 rotatably sleeved on the outer surface to move forward. While the two first struts 10 are moving forward, they apply a forward thrust to the two second fixing blocks 9 rotatably connected at the front end, causing them to move forward. At the same time, the two second fixing blocks 9 apply a forward thrust to the two miter gates 8 fixedly installed on the front surface, causing the two miter gates 8 to move forward along the two second chutes 5 through the two sliding blocks 14 fixedly installed on the lower surface. During the movement, they rotate on the inner surface of the two first fixing blocks 6 through the two fixing rods 7 fixedly sleeved on the inner surface, and the opening of the miter gate 8 can be completed. By starting the reverse rotation of the motor 13, the self-locking of the gate can be completed.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A miter gate with a self-locking function, comprising a gate bottom plate (1), two gate upright plates (2) being fixedly mounted on the upper surface of the gate bottom plate (1), characterized in that: The upper surface of the gate bottom plate (1) is provided with two second sliding grooves (5); The gate bottom plate (1) is provided with an opening and closing mechanism, which comprises a fixed plate (3), a first sliding groove (4), two first fixed blocks (6), two fixed rods (7), two herringbone gates (8), two second fixed blocks (9), two first support rods (10), a fixed rod (11), a second support rod (12), a motor (13) and two sliding blocks (14).

2. The miter gate with self-locking function according to claim 1, characterized in that: The two first fixing blocks (6) are respectively fixedly mounted on opposite surfaces of the two gate upright plates (2), and the outer surfaces of the two fixing rods (7) are respectively rotatably connected to the inner surfaces of the two first fixing blocks (6).

3. The miter gate with self-locking function according to claim 1, characterized in that: The two miter gates (8) are respectively fixedly sleeved on the outer surfaces of the two fixing rods (7); The sliding blocks (14) are respectively fixedly mounted on the lower surfaces of the two herringbone gates (8), and the two sliding blocks (14) are respectively slidably sleeved on the inner surfaces of the two second sliding grooves (5).

4. The miter gate with self-locking function according to claim 1, characterized in that: The two second fixing blocks (9) are respectively fixedly mounted on the rear surfaces of the two miter gates (8), and the two first support rods (10) are respectively rotatably connected to the rear surfaces of the two second fixing blocks (9).

5. The miter gate with self-locking function according to claim 1, characterized in that: The fixed rod (11) is rotatably sleeved on the inner surfaces of the two first support rods (10), and the second support rod (12) is fixedly sleeved on the outer surface of the fixed rod (11); The output shaft of the motor (13) is fixedly sleeved on the inner surface of the second support rod (12).

6. The miter gate with self-locking function according to claim 1, characterized in that: The fixing plate (3) is fixedly mounted on the lower surface of the motor (13), and the fixing plate (3) is fixedly mounted on the opposite surfaces of the two gate upright plates (2); The first sliding groove (4) is provided on the upper surface of the fixed plate (3), and the first sliding groove (4) is slidably connected to the fixed rod (11).

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