Lower gate mounting mechanism of diversion tunnel gate in limited space

Abstract

The utility model discloses a lower gate mounting mechanism for a diversion tunnel gate in a limited space, which comprises a hoisting device positioned on the upper side of a dam body, a gate groove positioned at the bottom of the dam body, a guide plate mounted on the upper side of the gate groove, adjusting rollers symmetrically arranged on two sides of the guide plate, and guide devices symmetrically arranged on the lower side of the guide plate left and right, the guiding devices on the two sides are aligned with the left groove body and the right groove body of the gate groove correspondingly, and spiral threads are arranged on the surface of the adjusting roller. The gate is supported through the guide plates, the gate makes contact with the adjusting rollers corresponding to the guide plates, the spiral threads corresponding to the surfaces of the adjusting rollers have the one-way driving effect, the contact side of the gate moves in the driving direction and turns over along the side, and therefore the vertical direction of the gate is adjusted to be the horizontal direction. When the adjusting rollers on the two sides rotate in opposite directions, the left-right height difference of the gate can be adjusted, and the corresponding upper and lower sides of the gate are in a horizontal state.

Description

Technical Field

[0001] The utility model belongs to the technical field of gate equipment, and particularly relates to a gate lowering and installation mechanism for a diversion tunnel gate in a restricted space. Background Technique

[0002] As a diversion structure, due to its special mission, it maintains the overall dam construction and operation safety. As a gate for closing and storing water in a diversion building, due to cost considerations, except for the opening and closing gate slots, there is generally no dedicated fixed lifting device. The traditional gate lowering and water storage method has large construction process investment, poor effect, complex working conditions and great potential safety hazards, directly endangering production safety and subsequent construction production and even the overall project operation safety, and can no longer meet the development needs.

[0003] In view of the fact that the gate used for closing the sluice in the project is temporarily arranged and has little relevance to the permanent facilities of the project operation, generally such gates have no dedicated lifting device, and a truck crane in the market is temporarily rented for the lifting work of the gate for closing the sluice in the project. The truck crane is mainly arranged along the range of the gate lowering axis and is safely positioned according to the space on the dam top. When installing the gate, the gate needs to be placed on the bottom plate of the water inlet section of the gate slot, forming a vertical direction with the gate slot. The truck crane is located at the top of the dam body, and the gate slot is located at the bottom of the dam body. There is a height difference in the middle. The position corresponding to the height difference has insufficient width in the parallel direction of the gate, and the gate needs to be lowered in the vertical length direction, resulting in the inability of the lower edge side of the gate to align with the upper side opening slot of the gate slot, making the installation of the gate more difficult. Moreover, the weight of the gate body is relatively large, and it is impossible to rely on manpower to align it when manually going down to the riverbed, resulting in great difficulty in closing the sluice. Content of the Utility Model

[0004] The purpose of the utility model is to provide a gate lowering and installation mechanism for a diversion tunnel gate in a restricted space, which is used for the gate lowering or gate opening construction of various large, medium and small completed reservoirs waiting for gate lowering and water storage, where it is impossible to vertically lower the lifting rope due to structures or other reasons directly above the gate.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] A gate lowering and installation mechanism for a diversion tunnel gate in a restricted space includes a lifting device located on the upper side of the dam body for lifting the gate, and a gate slot located at the bottom of the dam body.

[0007] It includes a guide plate installed on the upper side of the gate slot. Both sides of the guide plate are supported by support frames. The guide plate is inclined at 15 - 20° to the vertical plane. Adjusting rollers are symmetrically arranged on both sides of the guide plate. The adjusting rollers are horizontally arranged and are located at the upper side position of the guide plate. Guide devices are symmetrically arranged on the left and right sides of the lower side of the guide plate. A motor for driving the adjusting rollers to rotate is provided on the side of the guide plate.

[0008] The two guiding devices are respectively aligned with the left and right side grooves of the gate slot, and the surface of the adjusting roller has spiral threads.

[0009] Further, the gate has a gate panel. The side of the gate panel is a side wall, and there is a reinforcing plate inside. The side wall has a guiding wheel. The gate slot is used for socket-mounted installation of the gate. One side of the gate slot is a mounting plate, and a water groove is opened at the central position of the mounting plate, and a guiding groove for socketing the guiding wheel is formed on the side.

[0010] Further, the output end of the motor is a rotating shaft. The adjusting roller is sleeved on the rotating shaft and coaxially arranged. A threaded groove is opened on the surface of the adjusting roller, and a rubber ring is installed in the threaded groove to form spiral threads. A limiting plate is installed on one side of the rotating shaft corresponding to the motor. The limiting plate is vertically fixed to the guiding plate, and the limiting plate has a shaft hole for the rotating shaft to pass through.

[0011] Further, the guiding device is adjustably installed on the guiding plate. The guiding device includes a positioning plate. The positioning plate is attached to and installed on the guiding plate. An inclined plate and a vertical plate are vertically fixed to the side of the positioning plate. A part of the inclined plate is a frame, and a plurality of transition rollers are arranged in sequence inside the frame. An inner clamping plate is vertically fixed to the free side of the vertical plate, and the inner clamping plate has an arc-shaped flared side corresponding to the upper side. A positioning hole is opened on the positioning plate, and a positioning groove is opened on the guiding plate corresponding to the positioning hole. The positioning groove is horizontally arranged, and a positioning bolt is installed in the positioning hole for adjustment and fixation.

[0012] The back side of the guiding plate has a mounting groove. The cross-section of the mounting groove is in a U shape. The mounting groove is sleeved on the upper inclined frame of the support frame. Screw holes are opened on the side wall of the mounting groove and the inclined frame, and are fixed by bolts. The bottom horizontal frame of the support frame has a horizontal plate, and mounting holes are opened on the horizontal plate for fixing to the ground.

[0013] A construction method for the lower gate installation mechanism of a diversion tunnel gate in a restricted space includes the following steps.

[0014] (1) The gate slot is located at the water inlet. Support frames are first installed on both sides of the gate slot. The corresponding horizontal frames of the two support frames are in contact with the ground, and the support frames are fixed by matching the anchor bolts with the mounting holes. Then, the guiding plate at the top is installed. The mounting groove on the back side of the guiding plate is sleeved on the upper inclined frame of the support frame and fixed by bolts.

[0015] (2) Adjust the position of the guiding device through the positioning groove so that the corresponding vertical plate of the guiding device is aligned with the upper side of the gate slot.

[0016] (3) The hoisting device hoists the gate and lowers it along the dam body. The gate is in an approximately 90-degree state with the plate body during the lowering process to avoid the formation of a lowering obstacle due to insufficient width on the dam body side. After lowering to the position of the guiding plate, the hoisting device is driven to make the gate approach the guiding plate, and the side of the gate moves and abuts against the adjusting roller.

[0017] (4) According to the gate direction, first drive the single-side adjusting roller to make the gate flip along the lifting point until the gate is fully supported on one side and abuts against the adjusting rollers on both sides. Then, according to the left and right height of the gate, control the adjusting rollers on both sides at the same time to make the upper and lower sides of the gate horizontal. Then slowly lower the gate again, further insert the lower side of the gate into the guide device, and guide it into the gate slot under the action of the guide device;

[0018] (5) After the installation is completed, remove the steel cables used to lift the gate, and at the same time remove the support frame and guide plate to complete the construction.

[0019] The utility model has the following beneficial effects: the gate is supported by the guide plate, so that when the gate approaches and abuts against the guide plate, a force point is generated, and at the same time, the gate contacts the adjustment roller corresponding to the guide plate, and the side of the gate contacts the adjustment roller to form a support point, and then the motor is manually controlled to drive the adjustment roller to rotate, and precise control is performed to drive the adjustment roller to rotate. The spiral pattern corresponding to the surface of the adjustment roller has a unidirectional driving effect, so that the contact side of the gate moves along the driving direction, so that the gate takes the lifting point as the rotation point and flips along the side, thereby adjusting the vertical direction of the gate to the horizontal direction. The gate is fully supported on one side by the adjustment rollers on both sides.

[0020] Since the gate is rectangular and the lifting point is located in the center of the upper side, it is easy to cause the center to be inconsistent with the left and right heights of the gate after lifting, and it is impossible to accurately locate the gate slot. Therefore, when the gate is fully supported on one side by the adjusting rollers on both sides, the adjusting rollers on both sides can be controlled separately. When the adjusting rollers on both sides rotate in opposite directions, the height difference between the left and right sides of the gate can be adjusted to make the corresponding upper and lower sides of the gate horizontal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0022] Figure 1 : Front view of the utility model gate and gate groove being installed in coordination.

[0023] Figure 2 : The rear view of the utility model gate and gate groove being installed in coordination.

[0024] Figure 3 : Schematic diagram of the guide plate structure of the utility model.

[0025] Figure 4 : Schematic diagram of the structure of the guide device of the utility model.

[0026] Figure 5 : Schematic diagram of the installation structure of the guide plate and the support frame of the utility model.

[0027] Figure 6 : Schematic diagram of the installation structure of the gate and gate slot of the utility model.

[0028] Figure 7 : Schematic diagram of the structure of the gate lowering process of the utility model.

[0029] Figure 8 : Schematic diagram of the adjustment structure of the utility model gate after the gate is lowered.

[0030] In the accompanying drawings, the list of components represented by each reference numeral is as follows: gate 2, gate slot 1, guide plate 3, support frame 4, adjusting roller 5, guide device 6, motor 51, guide wheel 21, rotating shaft 52, threaded groove 53, rubber ring 54, limit plate 31, positioning plate 65, inclined plate 61, vertical plate 62, transition roller 63, inner buckle plate 64, positioning hole 66, positioning slot 32, mounting slot 33, horizontal plate 41. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] like Figures 1 to 8 As shown: a confined space diversion tunnel gate lower gate installation mechanism, including a lifting device located on the upper side of the dam body, the lifting device is a truck crane, used to lift the gate 2, including a gate groove 1 located at the bottom of the dam body, the gate groove 1 is used to cooperate with the gate 2, the gate groove 1 is installed and supported on the riverbed, and is sealed with the water pipe corresponding to the direction of the water tank.

[0033] It includes a guide plate 3 installed on the upper side of the gate slot 1. The guide plate 3 is a plate structure in a rectangular shape. The guide plate 3 is supported on both sides by a support frame 4 so that the guide plate is raised and located on the upper side of the gate slot. The guide plate 3 is inclined at 15-20° to the vertical plane. Adjusting rollers 5 are symmetrically arranged on both sides of the guide plate 3. The adjusting rollers 5 are horizontally arranged and located on the upper side of the guide plate 3. A guide device 6 is symmetrically arranged on the lower side of the guide plate 3. A motor 51 for driving the adjusting roller 5 to rotate is provided on the side of the guide plate 3; the motor is fixed to the guide plate and is a manually controlled stepping motor for receiving and controlling the rotation of the adjusting roller.

[0034] The guide devices 6 on both sides are aligned with the left and right side groove bodies of the gate groove 1 respectively, and the surface of the adjusting roller 5 has spiral patterns.

[0035] like Figures 7 to 8As shown: For large, medium and small completed reservoirs waiting to be closed and filled with water, the gate is lowered along the side of the dam body under the action of the lifting device. Limited by the size of the space, the gate is lifted and lowered, and the gate and the side of the dam body are in a nearly vertical state. When the gate 2 is lowered to the gate slot 1, the direction of the gate needs to be adjusted and flipped about 90° to align the gate with the side of the gate slot. The lifting device is lifted by a wire rope, which cannot align the gate 2 with the gate slot 1, and the soft connection makes it difficult to flip the gate.

[0036] The utility model supports the gate 2 through the guide plate 3, so that when the gate 2 approaches and abuts against the guide plate 3, a force point is generated, and at the same time, the gate 2 contacts the adjusting roller 5 corresponding to the guide plate 3, and the side of the gate 2 contacts the adjusting roller 5 to form a support point, and then the motor 51 is manually controlled to drive the adjusting roller 5 to rotate, and the adjusting roller 5 is driven to rotate accurately. The spiral pattern corresponding to the surface of the adjusting roller 5 has a unidirectional driving effect, so that the contact side of the gate 2 moves along the driving direction, so that the gate 2 takes the lifting point as the rotation point and flips along the side, so that the vertical direction of the gate is adjusted to the horizontal direction. The gate is fully supported on one side by the adjusting rollers 5 on both sides.

[0037] Since the gate 2 is rectangular and the lifting point is located at the center of the upper side, it is easy to cause the center to be inconsistent with the left and right heights of the gate 2 after lifting, and it is also impossible to accurately position the gate slot 1. Therefore, when the gate is fully supported on one side by the adjusting rollers 5 on both sides, the adjusting rollers 5 on both sides can be controlled separately. When the adjusting rollers 5 on both sides rotate in opposite directions, the height difference between the left and right sides of the gate can be adjusted to make the corresponding upper and lower sides of the gate 2 in a horizontal state.

[0038] When the gate 2 is adjusted, the gate is lowered and passes through the guide device 6. The left and right guide devices are equivalent to positioning devices, which are used to position and guide to the upper opening groove of the gate groove, and then the gate is lowered.

[0039] like Figures 1 to 2 As shown: the gate 2 has a gate plate, the side of the gate plate is a side wall, the inner side has a reinforcement plate, the side wall has a guide wheel 21, the gate groove 1 is used for sleeve-type installation of the gate 2, the gate groove 1 has a mounting plate on one side, a water groove is opened in the center of the mounting plate, and a guide groove for sleeve-connecting the guide wheel is formed on the side. There are two corresponding guide wheels 21, and the purpose of lowering the gate is to align the guide wheel with the guide groove, and then slide and install along the guide groove. A rubber sealing pad is also fixed on one side of the gate plate corresponding to the mounting plate to improve the sealing of the gate side.

[0040] like Figure 3As shown: The output end of the motor 51 is a rotating shaft 52. The adjusting roller 5 is sleeved on the rotating shaft 52 and arranged coaxially. Thread grooves 53 are formed on the surface of the adjusting roller 5, and rubber rings 54 are installed in the thread grooves 53 to form spiral threads. The adjusting roller 5 is fixed to the rotating shaft 52. After the rubber rings 54 are installed in the thread grooves 53, the surface of the adjusting roller is kept smooth without protruding thread lines, and spaced thread layers are formed on the surface of the adjusting roller 5, so that the materials of the adjusting roller 5 corresponding to the thread layers are different and the frictional forces are different, which are used to generate a unidirectional driving force during rotation, and at the same time, the smooth surface is maintained, and no large wear will occur on the thread part. At the same time, when the gate is lowered, there will be no movement obstruction during the rolling along the adjusting roller.

[0041] A limiting plate 31 is installed on one side of the rotating shaft 52 corresponding to the motor 51. The limiting plate 31 is vertically fixed to the guiding plate 3, and the limiting plate 31 has a shaft hole for the rotating shaft 52 to pass through. Specifically, there are two limiting plates 31 corresponding to a single motor 51, and a shaft sleeve can also be installed in the corresponding shaft holes between the two limiting plates 31 to improve the supporting performance of the rotating shaft 52 and make the rotation stable.

[0042] As Figure 4 shown: The guiding device 6 is adjustably installed on the guiding plate 3. The guiding device 6 includes a positioning plate 65. The positioning plate 65 is installed in contact with the guiding plate 3, and an inclined plate 61 and a vertical plate 62 are vertically fixed to the side of the positioning plate 65.

[0043] Part of the inclined plate 61 is a frame, and a plurality of transition rollers 63 are arranged in sequence inside the frame. An inner clamping plate 64 is vertically fixed to the free side of the vertical plate 62, and the inner clamping plate 64 has an arc-shaped flared side corresponding to the upper side. The inclined plates corresponding to the guiding devices 6 on the left and right sides form a flared structure, which helps to adjust the lowering angle when the corner position of the gate 2 contacts the transition rollers 63 and automatically aligns with the vertical plate 62. The vertical plate 62 is aligned with the gate slot 1 to form a guiding effect. And the inner clamping plate 64 forms a positioning groove with the guiding plate after the positioning plate 65 is fixed, and the formed arc-shaped flared side helps to position the gate.

[0044] The positioning plate 65 is provided with positioning holes 66, and the guiding plate 3 is provided with positioning grooves 32 at positions corresponding to the positioning holes 66. The positioning grooves 32 are horizontally arranged, and positioning bolts are installed in the positioning holes 66 for adjustment and fixation. Both the positioning holes 66 and the positioning grooves 32 are two, which have better stability and are used to adjust the overall position of the guiding device 6 in the horizontal direction, suitable for gates 2 of different widths. First, according to the width of the gate slot 1, the position of the guiding device 6 is positioned.

[0045] As Figure 5As shown in the figure: The back side of the guide plate 3 has an installation groove 33. The cross-section of the installation groove 33 is in a U shape. The installation groove 33 is sleeved on the upper inclined frame of the support frame 4. The side walls of the installation groove 33 and the inclined frame are both provided with screw holes and are fixed by bolts. The bottom horizontal frame of the support frame 4 has a horizontal plate 41. The horizontal plate 41 is provided with installation holes for fixing to the ground.

[0046] As Figures 7 to 8 shown: A construction method for the gate lowering and installation mechanism of a diversion tunnel gate in a restricted space includes the following steps.

[0047] (1) The gate slot 1 is located at the water inlet. The support frames 4 are first installed on both sides of the gate slot 1. The corresponding horizontal frames of the support frames 4 on both sides are in contact with the ground. The support frames 4 are fixed by the cooperation of anchor bolts and installation holes. Then, the guide plate 3 at the top is installed. The installation groove 33 on the back side of the guide plate 3 is sleeved on the upper inclined frame of the support frame 4 and fixed by bolts.

[0048] (2) Adjust the position of the guiding device 6 through the positioning groove 32 so that the corresponding vertical plate 62 of the guiding device 6 is aligned with the upper side of the gate slot 1.

[0049] (3) The hoisting device hoists the gate 2 and lowers it along the dam body. The gate is in an approximate 90-degree state with the plate body during the lowering process to avoid hindrance to the lowering due to insufficient width on the dam body side. After lowering to the position of the guide plate 3, the hoisting device is driven to make the gate 2 approach the guide plate 3, and the side of the gate 2 moves and abuts against the adjusting roller 5.

[0050] (4) According to the orientation of the gate 2, first drive the single-side adjusting roller 5 to make the gate 2 flip along the lifting point until one side of the gate 2 is fully supported and abuts against the adjusting rollers 5 on both sides. Then, according to the left and right height conditions of the gate 2, control the adjusting rollers 5 on both sides simultaneously to make the upper and lower sides of the gate 2 in a horizontal state. Then, slowly lower the gate 2 again. The lower side of the gate further inserts into the guiding device 6 and is guided into the gate slot 1 under the action of the guiding device 6.

[0051] (5) After the installation is completed, the steel cable for hoisting the gate 2 is removed, and at the same time, the support frame 4 and the guide plate 3 are removed to complete the construction.

[0052] This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention.

Claims

1. A gate lowering and installation mechanism for a diversion tunnel in a confined space, comprising a hoisting device located above the dam body for hoisting the gate (2), and a gate slot (1) located at the bottom of the dam body, characterized in that: it includes a guide plate (3) installed above the gate slot (1), both sides of the guide plate (3) are supported by a support frame (4), the guide plate (3) is inclined at 15-20° to the vertical plane, both sides of the guide plate (3) are symmetrically provided with adjusting rollers (5), the adjusting rollers (5) are horizontally arranged and located above the guide plate (3), both left and right sides of the lower side of the guide plate (3) are symmetrically provided with guiding devices (6), and a motor (51) for driving the adjusting roller (5) to rotate is provided on the side of the guide plate (3); the guiding devices (6) on both sides are respectively aligned with the left and right side grooves of the gate slot (1), and the surface of the adjusting roller (5) has spiral threads.

2. According to claim 1, a confined space diversion tunnel gate lowering installation mechanism is characterized by: The gate (2) has a gate panel, the side of the gate panel is a side wall, there is a reinforcing plate inside, and a guide wheel (21) is provided on the side wall. The gate slot (1) is used for socket-mounted installation of the gate (2). One side of the gate slot (1) is a mounting plate, a water groove is opened at the central position of the mounting plate, and a guide groove for socketing the guide wheel is formed on the side.

3. According to claim 1, a confined space diversion tunnel gate lowering installation mechanism is characterized by: The output end of the motor (51) is a rotating shaft (52), the adjusting roller (5) is sleeved on the rotating shaft (52) and arranged coaxially, a thread groove (53) is opened on the surface of the adjusting roller (5), and a rubber ring (54) is installed in the thread groove (53) to form spiral threads.

4. According to claim 3, a confined space diversion tunnel gate lowering installation mechanism is characterized by: A limiting plate (31) is installed on one side of the rotating shaft (52) corresponding to the motor (51), the limiting plate (31) is vertically fixed to the guide plate (3), and the limiting plate (31) has a shaft hole for the rotating shaft (52) to pass through.

5. According to claim 1, a confined space diversion tunnel gate lowering installation mechanism is characterized by: The guiding device (6) is adjustably installed on the guide plate (3), and the guiding device (6) includes a positioning plate (65), the positioning plate (65) is attached and installed to the guide plate (3), and an inclined plate (61) and a vertical plate (62) are vertically fixed to the side of the positioning plate (65).

6. A confined space diversion tunnel gate lowering installation mechanism according to claim 5, characterized in that: Part of the inclined plate (61) is a frame, and a plurality of transition rollers (63) are arranged in sequence inside the frame, and an inner clamping plate (64) is vertically fixed to the free side of the vertical plate (62), and the inner clamping plate (64) has an arc-shaped flared side corresponding to the upper side.

7. According to claim 5, a confined space diversion tunnel gate lowering installation mechanism is characterized by: The positioning plate (65) is provided with a positioning hole (66), the guide plate (3) is provided with a positioning groove (32) corresponding to the position of the positioning hole (66), the positioning groove (32) is horizontally arranged, and a positioning bolt is installed in the positioning hole (66) for adjustment and fixation.

8. The confined space diversion tunnel gate lowering installation mechanism according to claim 1, characterized in that: The back side of the guide plate (3) has an installation groove (33), the cross section of the installation groove (33) is in a U shape, the installation groove (33) is sleeved on the upper inclined frame of the support frame (4), screw holes are opened on the side wall of the installation groove (33) and the inclined frame, and they are fixed by bolts. The bottom horizontal frame of the support frame (4) has a horizontal plate (41), and the horizontal plate (41) is provided with installation holes for fixing to the ground.

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