Gate falling position deviation rectifying mechanism

By designing a gate positioning and correction mechanism, the gate's descent path is dynamically adjusted using correction columns and lifting rods, solving the problem of inaccurate gate lowering, achieving high-precision positioning and stability, and reducing the labor intensity of manual adjustment.

CN223838012UActive Publication Date: 2026-01-27BAOZHUSI HYDROPOWER PLANT OF HUADIAN SICHUAN POWER GENERATION CO LTD
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Patent Information

Application Number
CN202520179053.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-01-27
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

During the lowering of the gate, the gate may shake due to the uneven level of the gantry crane's grab beam or uneven force on the gate, making it impossible to accurately align with the gate slot entrance. Existing technologies rely on manual adjustment, which has limited accuracy and is labor-intensive.

Method used

Design a gate positioning and correction mechanism, including a correction column, a lifting rod and an abutment component. By dynamically adjusting the gate's falling path, it is aligned with the gate slot entrance. Detachable connections and a lubrication layer are used to improve stability and accuracy.

Benefits of technology

This improved the accuracy and stability of gate lowering, reduced labor intensity, and increased adjustment precision and work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of gate overhauling, and particularly relates to a gate falling position deviation rectifying mechanism which comprises a gate chamber and a gate groove, a gate and a door machine suitable for hoisting the gate are arranged in the gate chamber, the door machine is arranged at the top of the gate chamber, the top of the gate is connected with the door machine, the gate groove is formed in the bottom of the gate chamber, and the gate groove is arranged in the gate chamber. A door groove inlet communicated with the door groove is formed in the bottom of the door chamber; a deviation rectifying mechanism is arranged on the inner side wall of the gate chamber and suitable for pushing the gate to the position over an inlet of the gate groove. The deviation rectifying mechanism comprises a deviation rectifying column and aims to dynamically adjust the gate in the falling process through the arrangement of the deviation rectifying mechanism, ensure that the gate is always aligned with an inlet of a gate groove in the falling process and avoid the conditions of deviation, jamming or dislocation of the gate caused by shaking or poor operation precision. And the accuracy and the stability of lowering the gate are greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the field of gate maintenance technology, specifically relating to a gate positioning and correction mechanism. Background Technology

[0002] When inspecting the gate, a gantry crane is needed to lift the entire gate into the gate housing so that the gate is completely separated from the gate slot. After the inspection is completed, the gantry crane needs to be used to lower the gate back into the gate slot.

[0003] Currently, during the gate lowering process, the gate may sway due to factors such as the gantry crane's uneven gripping beam or uneven force on the gate. This can cause the gate to deviate during lowering, failing to accurately align with the gate slot entrance, leading to jamming or misalignment when lowered into the slot. Therefore, to avoid gate misalignment, existing technology requires workers to manually pull the gantry crane's chain hoist to stabilize the crane and adjust the relative position between the gate and the gate slot entrance. However, this manual adjustment method is not only labor-intensive but also has limited accuracy, making it difficult to meet the requirements for precise gate alignment. To solve this problem... Utility Model Content

[0004] In view of this, the present invention provides a gate positioning correction mechanism. Its purpose is to dynamically adjust the falling path of the gate during the falling process by setting a special correction mechanism in the gate housing, so that the gate can be aligned with the gate slot entrance, and the gate can be accurately lowered into the gate slot.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A gate positioning and correction mechanism includes a gate housing and a gate slot. The gate housing contains a gate and a gate hoist suitable for hoisting the gate. The gate hoist is located at the top of the gate housing, and the top of the gate is connected to the gate hoist. The gate slot is located at the bottom of the gate housing, and the bottom of the gate housing has a gate slot entrance that communicates with the gate slot. A correction mechanism is provided on the inner side wall of the gate housing, which is adapted to push the gate directly above the gate slot entrance.

[0007] The correction mechanism includes a correction column, one end of which is fixed to the inner wall of the gate, and the other end of which faces the gate. The correction column has a telescopic cavity inside, and the end of the correction column facing the gate has a telescopic cavity opening that communicates with the telescopic cavity.

[0008] A lifting rod, one end of which is inserted into the telescopic inner cavity, and the other end of which faces the gate and is provided with an abutment, the abutment being adapted to abut the gate;

[0009] The telescopic inner cavity is provided with a lifting part, which is connected to the lifting rod. The lifting part is adapted to drive the lifting rod to reciprocate along the length of the telescopic inner cavity, so as to drive the abutment to abut or move away from the gate.

[0010] As a preferred technical solution, the lifting part includes a driven wheel, which is disposed inside the telescopic cavity, and the driven wheel and the center of the central axis of the opening of the telescopic cavity are located on the same straight line;

[0011] A lead screw, one end of which is disposed on the surface of the driven wheel, and the other end of which is threadedly connected to the lifting rod;

[0012] The driving wheel has its rim vertically abutting against the surface of the driven wheel;

[0013] The driven wheel has meshing bevel teeth on its wheel surface and the rim of the driving wheel. The driving wheel is externally connected to a rotating part, which is adapted to drive the driving wheel to rotate, thereby driving the driven wheel and the lead screw to rotate.

[0014] Furthermore, the rotating part includes a rocker arm and a connecting column, one end of the connecting column is connected to the drive wheel, and the other end of the connecting column passes through the correction column and is externally connected to the rocker arm.

[0015] Furthermore, the abutment includes a pulley, the rim of which is adapted to abut the gate.

[0016] Furthermore, a groove is provided on the outer wall of the lifting rod, and the groove extends along the length direction of the lifting rod. A protrusion is provided on the inner wall of the telescopic cavity opening, and the protrusion is adapted to the groove.

[0017] Furthermore, the groove is configured in a wedge shape.

[0018] Furthermore, a lubricating layer is provided on the outer wall of the lifting rod and the inner wall of the groove.

[0019] Furthermore, the connection between the correction column and the inner wall of the gatehouse is a detachable connection, which uses bolts. Matching connection holes are provided on the correction column and the inner wall of the gatehouse respectively. The correction column can be installed and removed by tightening or loosening the bolts.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0021] By setting up a correction mechanism, the gate can be dynamically adjusted during the descent process, ensuring that the gate remains aligned with the gate slot entrance throughout the descent. This avoids gate offset, jamming, or misalignment caused by shaking or operational inaccuracies, greatly improving the accuracy and stability of gate descent. Attached Figure Description

[0022] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is a front view of the gate positioning and correction mechanism provided by this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the correction column provided by this utility model;

[0025] Figure 3 This is a schematic diagram of the connection structure between the driving wheel and the driven wheel provided by this utility model.

[0026] Correction column-1; rocker arm-2; lifting rod-3; pulley-4; gate-5; gate slot entrance-6; telescopic inner cavity-7; driven wheel-8; lead screw-9; driving wheel-10; telescopic cavity opening-11. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] When lowering a gate using a gantry crane, fluctuations in operational precision can cause the gate to wobble, leading to misalignment and making it difficult to accurately align the gate with the gate slot entrance. This can result in the gate getting stuck or misaligned when lowered into the gate slot. To prevent gate misalignment, current technology requires operators to manually pull the gantry crane's chain hoist to stabilize the crane and adjust the relative position of the gate and the gate slot entrance. However, this manual adjustment method is not only labor-intensive but also has limited accuracy, making it difficult to meet the requirements for precise gate alignment.

[0030] Therefore, in order to solve the above problems and realize the function of adjusting the falling path of gate 5 and correcting the deviation of gate 5, this utility model discloses a gate falling deviation correction mechanism, see reference. Figures 1-3The system includes a gate housing and a gate slot. The gate housing contains a gate 5 and a hoist suitable for lifting the gate 5. The hoist is located at the top of the gate housing, and the top of the gate 5 is connected to the hoist. The gate slot is located at the bottom of the gate housing, and the bottom of the gate housing has a gate slot entrance 6 that communicates with the gate slot. A correction mechanism is provided on the inner wall of the gate housing. This correction mechanism is adapted to push the gate 5 directly above the gate slot entrance 6. Specifically, the correction mechanism includes a correction column 1, one end of which is fixed to the inner wall of the gate housing, and the other end of which faces the gate 5. The correction column 1 has a telescopic inner cavity 7 inside, and the end of the correction column 1 facing the gate 5 has a telescopic cavity opening 11 that communicates with the telescopic inner cavity 7. A lifting rod 3 is provided, one end of which is inserted into the telescopic inner cavity 7, and the other end of the lifting rod 3 faces the gate 5 and is provided with an abutment. The abutment is adapted to abut the gate 5. The telescopic inner cavity 7 is provided with a lifting part, and the lifting part is connected to the lifting rod 3. The lifting part is adapted to drive the lifting rod 3 to reciprocate along the length direction of the telescopic inner cavity 7, so as to drive the abutment to abut or move away from the gate 5.

[0031] In this embodiment, the corrective column 1, through the cooperation of its internal lifting part and lifting rod, can achieve precise adjustment of the gate 5. When the gate 5 deviates during the lowering process, the operator can operate the lifting part to drive the lifting rod 3 to move along the length of the telescopic inner cavity 7. The movement of the lifting rod 3 will cause its end contact member to move closer to or away from the gate 5, thereby applying a thrust to the gate 5 to correct its deviation. Compared with the manual chain pull in the prior art, this not only helps to improve the adjustment accuracy but also greatly reduces the labor intensity of the operator. In addition, the contact member is designed with a pulley 4, the rim of which contacts the gate 5. This setting helps to avoid the influence of the contact member on the lowering of the gate 6, allowing the gate 6 to be smoothly lowered into the gate slot entrance 6 along the pulley 4, while also reducing the friction between the contact member and the gate 5.

[0032] In practice, staff can observe the lowering of gate 5 to determine if it has shifted. Once shift is confirmed, staff can rotate rocker arm 2 to drive drive wheel 10. The rotation of drive wheel 10 will cause driven wheel 8 and lead screw 9 to rotate synchronously. Since lead screw 9 is threadedly connected to lifting rod 3, its rotation will drive lifting rod 3 to move along the length of telescopic cavity 7. The movement of lifting rod 3 will cause pulley 4 to move closer to or further away from gate 5, thus correcting gate 5's deviation.

[0033] Furthermore, in this embodiment, the connection between the correction column 1 and the inner wall of the gatehouse is a detachable connection, specifically a bolt connection. This design not only facilitates the installation and removal of the correction column 1, but also makes maintenance and replacement of the correction column 1 easier. Matching connection holes are provided on both the correction column 1 and the inner wall of the gatehouse, allowing for installation and removal of the correction column 1 by tightening or loosening the bolts.

[0034] In one embodiment, the operator can use two such correction mechanisms, which are installed on two opposite inner walls of the gate housing with screws. The gate 6 is positioned between the two correction mechanisms. Then, one correction mechanism (hereinafter referred to as the first correction mechanism) is adjusted so that its pulley 4 is horizontally distributed above one side of the gate slot entrance 6 and fixed. When the gate 6 is lowered, the operator only needs to adjust the other correction mechanism (hereinafter referred to as the second correction mechanism) so that its pulley 4 can contact the gate 6 and apply a pushing force. At this time, since the pulley 4 of the first correction mechanism is fixed on one side of the gate slot entrance 4, the other side of the gate 6 will contact the pulley 4 of the first correction mechanism as the second correction mechanism is pushed. Thus, the gate 6 is fully aligned with the gate slot entrance 4, and the correction of the gate 6 during its descent is achieved.

[0035] Example 2

[0036] Based on Embodiment 1, in order to prevent the lifting rod 3 from rotating along with the lead screw 9 when it rotates, thereby affecting the extension and retraction of the lifting rod 3, please refer to... Figure 2 The present invention also includes a groove and a protrusion for limiting the lifting rod 3. Specifically, a groove is provided on the outer side wall of the lifting rod 3 and the groove extends along the length direction of the lifting rod 3. A protrusion is provided on the inner wall of the telescopic cavity opening 11 and the protrusion is adapted to the groove.

[0037] In this embodiment, when the lifting rod 3 moves within the telescopic cavity 7, the groove on its outer wall engages with the protrusion on the inner wall of the telescopic cavity opening 11, thereby limiting the movement of the lifting rod 3. This design not only ensures the stability of the lifting rod 3 during movement but also effectively prevents it from rotating along with the lead screw 9, thus ensuring that the lifting rod 3 can accurately reciprocate along the length of the telescopic cavity 7. Furthermore, the engagement of the groove and the protrusion also provides a guiding effect, making the movement of the lifting rod 3 smoother and improving the overall operating efficiency of the correction mechanism.

[0038] Preferably, the groove is wedge-shaped, which helps to improve the tightness between the protrusion and the groove, thereby reducing the shaking of the lifting rod 3 within the telescopic cavity 7 and further improving the stability of the correction mechanism when correcting the gate. In addition, the wedge-shaped groove can also buffer the movement of the lifting rod 3 to a certain extent, reducing the impact of the lifting rod 3 on the inner wall of the telescopic cavity 7 during movement, thus extending the service life of the correction mechanism.

[0039] Furthermore, to prevent excessive friction between the lifting rod 3 and the inner wall of the telescopic cavity 7 during movement, which could affect the moving efficiency and accuracy of the lifting rod 3, this invention also provides a lubrication layer on both the outer wall of the lifting rod 3 and the inner wall of the groove. The lubrication layer reduces the coefficient of friction between the lifting rod 3 and the inner wall of the telescopic cavity 7, making the lifting rod 3 move more smoothly. It also reduces wear on both the lifting rod 3 and the inner wall of the telescopic cavity 7, improving the durability of the alignment mechanism.

[0040] The lubrication layer can be made of graphite, which has excellent lubrication and high-temperature resistance. It effectively reduces friction between the lifting rod 3 and the inner wall of the telescopic cavity 7 during movement, ensuring smooth and precise movement of the lifting rod 3. Furthermore, the graphite lubrication layer has good self-lubricating properties, providing continuous lubrication during prolonged use and extending the service life of the correction mechanism.

[0041] In practical applications, when the gate deviates during lowering, operators can observe the gate's position and status to determine the necessary adjustment direction and force. Then, by operating the rocker arm 2, the driving wheel 10 is rotated, which in turn drives the driven wheel 8 and the lead screw 9. Since the lead screw 9 is threadedly connected to the lifting rod 3, its rotation drives the lifting rod 3 to move along the length of the telescopic inner cavity 7. This movement of the lifting rod 3 causes the contact element (i.e., pulley 4) to move closer to or away from the gate, applying a pushing or pulling force to correct its deviation. By adjusting the rotation direction and force of the rocker arm 2, the movement direction and distance of the lifting rod 3 can be controlled, thus achieving precise adjustment and correction of the gate.

[0042] In summary, based on Embodiments 1 and 2, the working steps of the gate positioning and correction mechanism are as follows:

[0043] First, when gate 5 needs to be lowered, the operator starts the gate crane to lower gate 5. During the descent, the operator must closely observe the position and status of gate 5 in order to promptly detect and correct any possible deviations.

[0044] Once gate 5 is observed to be deviating, the operator immediately adjusts the correction mechanism by operating rocker arm 2. Rotating rocker arm 2 transmits the rotation to drive wheel 10 via connecting column, which in turn drives driven wheel 8 and lead screw 9 to rotate synchronously. Since lead screw 9 is threadedly connected to lifting rod 3, the rotation of lead screw 9 drives lifting rod 3 to move along the length of telescopic cavity 7.

[0045] The movement of the lifting rod 3 causes the pulley 4 to move closer to or further away from the gate 5, thereby applying a thrust to the gate 5 to correct its deviation. By adjusting the rotation direction and force of the rocker arm 2, the operator can control the movement direction and distance of the lifting rod 3, thus achieving the adjustment and correction of the gate 5.

[0046] During the correction process, the lifting rod 3 remains stable during movement due to the cooperation of the groove and the protrusion, and will not be rotated along with the lead screw 9. At the same time, the groove of the wedge structure and the setting of the lubrication layer further improve the stability and durability of the correction mechanism.

[0047] After correction and adjustment, gate 5 can be accurately lowered into the gate slot, achieving the requirement for precise alignment of gate 5. This gate positioning and correction mechanism not only improves adjustment accuracy but also reduces the labor intensity of workers and increases work efficiency.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gate positioning and correction mechanism, comprising a gate housing and a gate slot, wherein the gate housing is provided with a gate (5) and a gate hoist suitable for hoisting the gate (5), the gate hoist is located at the top of the gate housing and the top of the gate (5) is connected to the gate hoist, the gate slot is located at the bottom of the gate housing and the bottom of the gate housing has a gate slot entrance (6) communicating with the gate slot, characterized in that, The inner wall of the gate is provided with a correction mechanism, which is adapted to push the gate (5) directly above the gate slot entrance (6); Corrective agencies include: Correction column (1), one end of the correction column (1) is fixed on the inner wall of the gate, and the other end of the correction column (1) faces the gate (5). The correction column (1) is provided with a telescopic inner cavity (7), and the end of the correction column (1) facing the gate (5) is provided with a telescopic cavity opening (11) communicating with the telescopic inner cavity (7). A lifting rod (3) is inserted into the telescopic inner cavity (7) at one end, and the other end of the lifting rod (3) faces the gate (5) and is provided with an abutment, which is adapted to abut the gate (5); The telescopic inner cavity (7) is provided with a lifting part, and the lifting part is connected to the lifting rod (3). The lifting part is adapted to drive the lifting rod (3) to reciprocate along the length direction of the telescopic inner cavity (7) so as to drive the contact member to contact or move away from the gate (5).

2. The gate positioning correction mechanism according to claim 1, characterized in that, The lifting section includes: Driven wheel (8), the driven wheel (8) is located inside the telescopic cavity (7), and the center of the driven wheel (8) and the central axis of the telescopic cavity opening (11) are on the same straight line; A lead screw (9), one end of which is disposed on the surface of the driven wheel (8), and the other end of which is threadedly connected to the lifting rod (3); The driving wheel (10) has its rim vertically abutting against the surface of the driven wheel (8); The driven wheel (8) has meshing bevel teeth on its wheel surface and the rim of the driving wheel (10). The driving wheel (10) is externally connected to a rotating part, which is adapted to drive the driving wheel (10) to rotate, thereby driving the driven wheel (8) and the lead screw (9) to rotate.

3. The gate positioning correction mechanism according to claim 2, characterized in that, The rotating part includes a rocker arm (2) and a connecting column. One end of the connecting column is connected to the drive wheel (10), and the other end of the connecting column passes through the correction column (1) and is externally connected to the rocker arm (2).

4. The gate positioning correction mechanism according to claim 1, characterized in that, The abutting element includes a pulley (4), the rim of which is adapted to abut the gate (5).

5. The gate positioning correction mechanism according to claim 1, characterized in that, The outer wall of the lifting rod (3) is provided with a groove, and the groove extends along the length direction of the lifting rod (3). The inner wall of the telescopic cavity opening (11) is provided with a protrusion, and the protrusion is adapted to the groove.

6. The gate positioning correction mechanism according to claim 5, characterized in that, The groove is designed in a wedge shape.

7. The gate positioning correction mechanism according to claim 5, characterized in that, The outer wall of the lifting rod (3) and the inner wall of the groove are both provided with a lubricating layer.

8. The gate positioning correction mechanism according to claim 1, characterized in that, The connection between the correction column (1) and the inner wall of the gatehouse is a detachable connection. The detachable connection is a bolt connection, and matching connection holes are provided on the correction column (1) and the inner wall of the gatehouse respectively. The correction column (1) can be installed and disassembled by tightening or loosening the bolts.

Citation Information

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