A device for opening and closing a closure gate of a diversion tunnel

Abstract

The application relates to a kind of closure devices of diversion tunnel closure gate opening and closing device. It is suitable for the technical field of hydraulic opening and closing machine equipment. The technical scheme adopted by the application is: a kind of closure devices of diversion tunnel closure gate opening and closing device is made with door groove on the side wall of diversion tunnel, which has: closure gate, inserted in the door groove, the closure gate can move along the length direction of door groove, the top of closure gate is fixedly installed with lifting block, and the lifting block is made with lifting hole; Hydraulic opening and closing machine is installed at the position above the door groove; Connecting mechanism is installed at the end position of the piston rod of hydraulic opening and closing machine, which has a fixed frame that can be sleeved on the lifting block, the fixed frame is made with sliding groove in the corresponding position of the lifting hole on the lifting block along the axial direction of the lifting hole, the fixed frame is installed with lifting shaft that is in sliding cooperation with the sliding groove, the lifting shaft can be inserted into the lifting hole during sliding along the sliding groove, and the fixed frame is installed with driving mechanism that can drive the lifting shaft to slide along the length direction of the sliding groove.

Description

Technical Field

[0001] This invention relates to a gate opening and closing device for a diversion tunnel. It falls under the technical field of hydraulic gate hoisting equipment. Background Technology

[0002] The diversion tunnel sealing gate in hydropower projects is mainly used to control river flow after the diversion task is completed, ensuring the safety of subsequent construction and the smooth progress of the project. Generally, after the diversion tunnel sealing gate is closed, it serves a permanent water-blocking function to prevent water leakage. Normally, the hydraulic hoist is removed after the sealing gate is hoisted into the gate slot. However, currently, due to the need for a fixed connection between the sealing gate and the hydraulic hoist during hoisting, it is inconvenient to remove the hydraulic hoist. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to solve the above-mentioned technical problem, the present invention provides a sealing gate opening and closing device for a diversion tunnel.

[0004] The technical solution adopted in this invention is: a gate opening and closing device for a diversion tunnel, wherein a gate groove is formed on the side wall of the diversion tunnel, and has the following characteristics: The blocking gate is inserted into the gate slot and can move along the length of the gate slot. A lifting block is fixedly installed on the top of the blocking gate, and a lifting hole is made on the lifting block. A hydraulic gate opener is installed above the gate slot; The connecting mechanism is installed at the end of the piston rod of the hydraulic hoist and has a fixed frame that can be fitted onto the lifting block. The fixed frame has a sliding groove at the corresponding position of the lifting hole on the lifting block, which is arranged along the axial direction of the lifting hole. A lifting shaft that slides with the sliding groove is installed in the fixed frame. The lifting shaft can extend into the lifting hole during the sliding along the sliding groove. A drive mechanism that can drive the lifting shaft to slide along the length direction of the sliding groove is installed on the fixed frame.

[0005] The drive mechanism has a rotary cylinder mounted on a fixed frame, and a screw rod arranged along the length of the slide groove is installed at the end of the rotary cylinder. The lifting shaft is mounted on the screw rod, and the screw rod is threadedly engaged with the lifting shaft.

[0006] The drive mechanism and the lifting shaft are mounted on the fixed frame on the first side of the lifting block. The fixed frame on the second side of the lifting block has a slot at the position corresponding to the lifting hole. The lifting shaft on the first side of the lifting block can be inserted into the slot on the second side of the lifting block after passing through the lifting hole.

[0007] The hydraulic gate opener has a frame mounted on the gate slot. A cylinder body arranged along the length of the gate slot is mounted on the frame. A piston rod is installed inside the cylinder body. A piston body that slides and engages with the inner wall of the cylinder body is installed at the end of the piston rod that extends into the cylinder body. A throttling block is fixedly installed on the inner wall of the cylinder body. Throttling grooves of different lengths are formed on the inner wall of the throttling block. A stop block is fixedly fitted on the piston rod. The stop block moves with the piston rod to a position corresponding to the throttling block. The stop block and the inner wall of the throttling block engage with each other. During the process of the stop block moving with the piston rod and engaging with the throttling block, the stop block sequentially blocks the throttling grooves on the throttling block according to the length of the throttling grooves from smallest to largest.

[0008] The beneficial effects of this invention are as follows: This invention installs a detachable connecting mechanism at the end of the piston rod of the hydraulic gate hoist. When it is necessary to seal the diversion tunnel, the sealing gate is installed at the top of the gate slot, the hydraulic gate hoist is installed above the gate slot, and the fixing bracket at the end of the piston rod of the hydraulic gate hoist is fitted onto the lifting block at the upper end of the sealing gate. The driving mechanism drives the lifting shaft to move along the slide groove of the fixing bracket until the lifting shaft is inserted into the lifting hole of the lifting block. In this way, the hydraulic gate hoist can drive the sealing gate to move along the gate slot during operation. After the sealing gate is installed, the driving mechanism is controlled to move the lifting shaft out of the lifting hole until the lifting shaft and the lifting hole are disengaged, facilitating the removal of the hydraulic gate hoist from the sealing gate and subsequent disassembly. Attached Figure Description

[0009] Figure 1 , Figure 2 This is a schematic diagram of the structure of the present invention.

[0010] Figure 3 This is a schematic diagram of the connecting mechanism in this invention.

[0011] Figure 4 This is a cross-sectional schematic diagram of the cylinder body in this invention.

[0012] Figures 5-9 This is a schematic diagram showing the interaction between the stop block and each throttling groove during the movement of the hydraulic gate opener in this invention.

[0013] In the diagram: 1. Gate slot; 2. Blocking gate; 3. Lifting block; 3-1. Lifting hole; 4. Hydraulic gate hoist; 4-1. Frame; 4-2. Cylinder body; 4-3. Piston rod; 4-4. Piston body; 4-5. Throttling block; 4-6. Throttling groove; 4-7. Stop block; 5. Connecting mechanism; 5-1. Fixing frame; 5-2. Lifting shaft; 5-3. Slot; 6. Drive mechanism; 6-1. Rotary cylinder; 6-2. Screw. Detailed Implementation

[0014] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0015] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0016] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] Embodiment 1 is a sealing gate 2 opening and closing device for a diversion tunnel. A gate groove 1 is formed on the side wall of the diversion tunnel. In this embodiment, it has: The blocking gate 2 is inserted into the gate slot 1. The blocking gate 2 can move along the length of the gate slot 1. A lifting block 3 is fixedly installed on the top of the blocking gate 2. The lifting block 3 has a lifting hole 3-1. The hydraulic gate opener 4 is installed above the gate slot 1; The connecting mechanism 5 is installed at the end of the piston rod 4-3 of the hydraulic gate hoist 4. It has a fixed frame 5-1 that can be fitted onto the lifting block 3. The fixed frame 5-1 has a sliding groove at the corresponding position of the lifting hole 3-1 on the lifting block 3, which is arranged along the axial direction of the lifting hole 3-1. The lifting shaft 5-2 that slides with the sliding groove is installed in the fixed frame 5-1. The lifting shaft 5-2 can extend into the lifting hole 3-1 during the sliding along the sliding groove. The fixed frame 5-1 is equipped with a drive mechanism 6 that can drive the lifting shaft 5-2 to slide along the length direction of the sliding groove. Thus, when it is necessary to seal the diversion tunnel, the sealing gate 2 is installed at the top of the gate slot 1, and the hydraulic hoist 4 is installed above the gate slot 1. The fixing bracket 5-1 at the end of the piston rod 4-3 of the hydraulic hoist 4 is fitted onto the lifting block 3 at the upper end of the sealing gate 2. The driving mechanism 6 drives the lifting shaft 5-2 to move along the slide groove of the fixing bracket 5-1 until the lifting shaft 5-2 is inserted into the lifting hole 3-1 of the lifting block 3. In this way, the hydraulic hoist 4 can drive the sealing gate 2 to move along the gate slot 1 when it is running. After the installation of the sealing gate 2 is completed, the driving mechanism 6 is controlled to run and drive the lifting shaft 5-2 to move out of the lifting hole 3-1 until the lifting shaft 5-2 is disengaged from the lifting hole 3-1, so that the hydraulic hoist 4 can be removed from the sealing gate 2 and then dismantled.

[0020] In this embodiment, the drive mechanism 6 and the lifting shaft 5-2 are mounted on the fixing frame 5-1 on the first side of the lifting block 3. The fixing frame 5-1 on the second side of the lifting block 3 has a slot 5-3 at a position corresponding to the lifting hole 3-1. The lifting shaft 5-2 on the first side of the lifting block 3 passes through the lifting hole 3-1 and can be inserted into the slot 5-3 on the second side of the lifting block 3. Thus, the drive mechanism 6 drives the lifting shaft 5-2 through the lifting hole 3-1 on the lifting block 3 and inserts it into the slot 5-3 on the other side of the fixing frame 5-1, providing good stable support for the lifting shaft 5-2.

[0021] Example 2 is an opening and closing device for a sealing gate 2 of a diversion tunnel. Based on Example 1, in this example, the driving mechanism 6 has a rotary cylinder 6-1 mounted on a fixed frame 5-1. A screw 6-2 arranged along the length of the slide groove is installed at the end of the rotary cylinder 6-1. The lifting shaft 5-2 is mounted on the screw 6-2, and the screw 6-2 and the lifting shaft 5-2 are threadedly engaged. Thus, by controlling the operation of the hydraulic cylinder, the screw 6-2 can be driven to rotate. During the rotation of the screw 6-2, under the action of the threaded engagement between the screw 6-2 and the lifting shaft 5-2 and the sliding engagement between the lifting shaft 5-2 and the slide groove, the lifting shaft 5-2 can be driven to move along the length of the slide groove.

[0022] Example 3 is a gate opening and closing device for a diversion tunnel. Based on Example 1, in this example, the hydraulic gate opener 4 has a frame 4-1 mounted on the gate slot 1. A cylinder 4-2 arranged along the length of the gate slot 1 is mounted on the frame 4-1. A piston rod 4-3 is installed inside the cylinder 4-2. A piston body 4-4 that slides with the inner wall of the cylinder 4-2 is installed at the end of the piston rod 4-3 that extends into the cylinder 4-2. A throttling block is fixedly installed on the inner wall of the cylinder 4-2. 4-5. Throttling blocks 4-5 have throttling grooves 4-6 of different lengths on their inner walls. A stop block 4-7 is fixedly fitted on the piston rod 4-3. The stop block 4-7 moves with the piston rod 4-3 to the position corresponding to the throttling block 4-5. The stop block 4-7 and the inner wall of the throttling block 4-5 cooperate with each other. During the process of the stop block 4-7 moving with the piston rod 4-3 and cooperating with the throttling block 4-5, the stop block 4-7 blocks the throttling grooves 4-6 on the throttling block 4-5 in order of increasing length. Thus, as the hydraulic hoist 4 moves the blocking gate 2 to the lowest end of the gate slot 1, the stop block 4-7 on the piston rod 4-3 inside the cylinder 4-2 moves to the position corresponding to the throttling block 4-5 on the inner wall of the cylinder 4-2. As the stop block 4-7 continues to move with the piston rod 4-3, the outer wall of the stop block 4-7 will cooperate with the inner wall of the throttling block 4-5. During the movement of the stop block 4-7, the throttling groove 4-6 on the throttling block 4-5 will be blocked sequentially from shortest to longest according to the length of the throttling groove 4-6, so that the amount of hydraulic oil passing through the throttling groove 4-6 gradually decreases, thereby playing a good buffering role.

[0023] Example 4 is a gate opening and closing device for a diversion tunnel, wherein a gate groove 1 is formed on the side wall of the diversion tunnel, and has the following features: The blocking gate 2 is inserted into the gate slot 1. The blocking gate 2 can move along the length of the gate slot 1. A lifting block 3 is fixedly installed on the top of the blocking gate 2. The lifting block 3 has a lifting hole 3-1. The hydraulic gate opener 4 is installed above the gate slot 1; The connecting mechanism 5 is installed at the end of the piston rod 4-3 of the hydraulic gate hoist 4. It has a fixed frame 5-1 that can be fitted onto the lifting block 3. The fixed frame 5-1 has a sliding groove at the corresponding position of the lifting hole 3-1 on the lifting block 3, which is arranged along the axial direction of the lifting hole 3-1. The lifting shaft 5-2 that slides with the sliding groove is installed in the fixed frame 5-1. The lifting shaft 5-2 can extend into the lifting hole 3-1 during the sliding along the sliding groove. The fixed frame 5-1 is equipped with a drive mechanism 6 that can drive the lifting shaft 5-2 to slide along the length direction of the sliding groove.

[0024] The drive mechanism 6 has a rotary cylinder 6-1 mounted on a fixed frame 5-1. A screw 6-2 is installed at the end of the rotary cylinder 6-1 along the length of the slide groove. The lifting shaft 5-2 is mounted on the screw 6-2, and the screw 6-2 is threadedly engaged with the lifting shaft 5-2.

[0025] The drive mechanism 6 and the lifting shaft 5-2 are mounted on the fixing frame 5-1 on the first side of the lifting block 3. The fixing frame 5-1 on the second side of the lifting block 3 has a slot 5-3 at the position corresponding to the lifting hole 3-1. The lifting shaft 5-2 on the first side of the lifting block 3 can be inserted into the slot 5-3 on the second side of the lifting block 3 after passing through the lifting hole 3-1.

[0026] The hydraulic gate opener 4 has a frame 4-1 mounted on the gate slot 1. A cylinder 4-2 arranged along the length of the gate slot 1 is mounted on the frame 4-1. A piston rod 4-3 is installed inside the cylinder 4-2. A piston body 4-4 that slides with the inner wall of the cylinder 4-2 is installed at the end of the piston rod 4-3 that extends into the cylinder 4-2. A throttling block 4-5 is fixedly installed on the inner wall of the cylinder 4-2. Throttling grooves 4-6 of different lengths are formed on the inner wall of the throttling block 4-5. A stop block 4-7 is fixedly fitted on the piston rod 4-3. The stop block 4-7 moves with the piston rod 4-3 to a position corresponding to the throttling block 4-5. The stop block 4-7 and the inner wall of the throttling block 4-5 cooperate with each other. During the process of the stop block 4-7 moving with the piston rod 4-3 and cooperating with the throttling block 4-5, the stop block 4-7 blocks the throttling grooves 4-6 on the throttling block 4-5 in ascending order of length.

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A gate opening and closing device for a diversion tunnel, wherein a gate groove (1) is formed on the side wall of the diversion tunnel, characterized in that: have: The blocking gate (2) is inserted into the gate slot (1). The blocking gate (2) can move along the length of the gate slot (1). A lifting block (3) is fixedly installed on the top of the blocking gate (2). A lifting hole (3-1) is made on the lifting block (3). The hydraulic gate opener (4) is installed above the gate slot (1); The connecting mechanism (5) is installed at the end of the piston rod (4-3) of the hydraulic hoist (4) and has a fixed frame (5-1) that can be fitted onto the lifting block (3). The fixed frame (5-1) has a sliding groove arranged along the axial direction of the lifting hole (3-1) at the corresponding position of the lifting hole (3-1) on the lifting block (3). A lifting shaft (5-2) that slides with the sliding groove is installed in the fixed frame (5-1). The lifting shaft (5-2) can extend into the lifting hole (3-1) during the sliding along the sliding groove. A drive mechanism (6) that can drive the lifting shaft (5-2) to slide along the length direction of the sliding groove is installed on the fixed frame (5-1).

2. The sealing gate opening and closing device for a diversion tunnel according to claim 1, characterized in that: The drive mechanism (6) has a rotary cylinder (6-1) mounted on a fixed frame (5-1), and a screw (6-2) arranged along the length of the slide groove is installed at the end of the rotary cylinder (6-1). The lifting shaft (5-2) is mounted on the screw (6-2), and the screw (6-2) is threadedly engaged with the lifting shaft (5-2).

3. The sealing gate opening and closing device for a diversion tunnel according to claim 1, characterized in that: The drive mechanism (6) and the lifting shaft (5-2) are mounted on the fixing frame (5-1) on the first side of the lifting block (3). The fixing frame (5-1) on the second side of the lifting block (3) has a slot (5-3) at the position corresponding to the lifting hole (3-1). The lifting shaft (5-2) on the first side of the lifting block (3) can be inserted into the slot (5-3) on the second side of the lifting block (3) after passing through the lifting hole (3-1).

4. The sealing gate opening and closing device for a diversion tunnel according to claim 1, characterized in that: The hydraulic gate opener (4) has a frame (4-1) mounted on a gate slot (1). A cylinder (4-2) arranged along the length of the gate slot (1) is mounted on the frame (4-1). A piston rod (4-3) is installed inside the cylinder (4-2). A piston body (4-4) that slides with the inner wall of the cylinder (4-2) is installed at the end of the piston rod (4-3) that extends into the cylinder (4-2). A throttling block (4-5) is fixedly installed on the inner wall of the cylinder (4-2). A length not specified on the inner wall of the throttling block (4-5) is provided. The same throttling groove (4-6) has a stop block (4-7) fixedly fitted on the piston rod (4-3). The stop block (4-7) moves with the piston rod (4-3) to the position corresponding to the throttling block (4-5). The stop block (4-7) and the inner wall of the throttling block (4-5) cooperate with each other. During the process of the stop block (4-7) moving with the piston rod (4-3) and cooperating with the throttling block (4-5), the stop block (4-7) seals the throttling groove (4-6) in order of increasing length according to the length of the throttling groove (4-6) on the throttling block (4-5).

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