CN220150247U - Mechanical locking device for flap gate - Google Patents
Mechanical locking device for flap gate Download PDFInfo
- Publication number
- CN220150247U CN220150247U CN202320008558.9U CN202320008558U CN220150247U CN 220150247 U CN220150247 U CN 220150247U CN 202320008558 U CN202320008558 U CN 202320008558U CN 220150247 U CN220150247 U CN 220150247U
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- China
- Prior art keywords
- locking
- flap gate
- gate
- limiting blocks
- shaped clamping
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- 238000001514 detection method Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000005611 electricity Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Barrages (AREA)
Abstract
The utility model relates to a mechanical locking device for a flap gate, and belongs to the technical field of structural design of radial gates of water and electricity hydraulic engineering. The utility model comprises an arc-shaped working gate with an overflow surface hole, wherein a flap gate is arranged in the overflow surface hole, one end of the flap gate is hinged with the bottom of a side box of the overflow surface hole through a first pin shaft, the opening and the closing of the flap gate are controlled through a hydraulic hoist cylinder arranged on the downstream side of the flap gate, the flap gate is in a closed state as a reference, locking limiting blocks are arranged on two sides of the top end of the flap gate, the top of the side surface of the locking limiting block, which faces the downstream side, is a locking surface, the locking surface is obliquely arranged relative to a horizontal plane, one end of the locking surface, which is close to the downstream side, is a lower end, an L-shaped clamping groove is formed in the locking surface, and the L-shaped clamping groove is communicated with the side end surface of the locking limiting block, which faces the downstream side; the top of the side box of the overflow meter hole is provided with rotary supports corresponding to the locking limiting blocks one by one, and the rotary supports are provided with locking bodies which are arranged in a rotating mode.
Description
Technical Field
The utility model relates to a mechanical locking device for a flap gate, and belongs to the technical field of structural design of radial gates of water and electricity hydraulic engineering.
Background
At present, in many water and electricity hydraulic engineering at home and abroad, the overflow surface hole on the overflow dam not only has the function of draining water, but also has the requirements of pollution discharge and ice discharge, and particularly in many water and electricity engineering at home and abroad, the tongue flap gate is usually required to be arranged on the arc-shaped working gate of the overflow surface hole and is usually used for carrying out pollution discharge in a storehouse area. The flap gate is generally composed of main components such as a flap gate leaf structure, a flap gate water seal device, a flap gate bottom shaft device and the like. The flap gate is connected with the large arc gate through a pin shaft, water stop of the flap gate is carried out through water seal and precompression of a box on the upper side of the large arc gate, and the opening and closing of the flap gate control the operation of the flap gate through the expansion and contraction of an oil cylinder arranged on a longitudinal partition plate of the large arc gate. When the flap gate is opened, the hydraulic system is in a pressure maintaining state, and when the gate reaches a fully closed position, the fully closed position of the flap gate is supported by the oil cylinder. When the tongue flap gate is fully opened for sewage disposal, the tongue flap gate is limited by a limiting block on the side box of the arc-shaped gate. In engineering application, the oil cylinder is easy to deform after being subjected to the action of downward pressure for a long time, and in addition, the tongue flap gate can be automatically opened after the pressure maintaining loop of the hydraulic system fails.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the mechanical locking device for the flap gate can improve the safety performance of the flap gate and the service life of an opening and closing oil cylinder.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the mechanical locking device of the flap gate comprises an arc-shaped working gate with an overflow surface hole, the flap gate is installed in the overflow surface hole, one end of the flap gate is hinged with the bottom of a side box of the overflow surface hole through a first pin shaft, the opening and the closing of the flap gate are controlled through a hydraulic hoist cylinder arranged on the downstream side of the flap gate, locking limiting blocks are arranged on two sides of the top end of the flap gate by taking the closed state of the flap gate as a reference, the top of the side surface of the downstream side of the locking limiting blocks is a locking surface, the locking surface is obliquely arranged relative to a horizontal plane, one end of the locking surface close to the downstream side is a lower end, an L-shaped clamping groove is formed in the locking surface, and the L-shaped clamping groove is communicated with the side end surface of the downstream side of the locking limiting blocks; the top of the side box of the overflow meter hole is fixedly provided with rotary supports corresponding to the locking limiting blocks one by one, the rotary supports are provided with locking bodies which are arranged in a rotary mode through second pivots, the second pivots are horizontally arranged, when the locking bodies are in a free suspension state, the locking bodies are positioned on the rotary stroke of the locking limiting blocks, when the locking limiting blocks rotate along with the flap gate from an opening state to a closing state, the locking bodies are driven to rotate by the upper limit points of the locking limiting blocks, the flap gate continues to rotate until the locking bodies reach the upper limit points of the locking limiting blocks after reaching the fully closed position, the free ends of the locking bodies cross the upper limit points of the locking limiting blocks, and then the free ends of the locking bodies can fall into L-shaped clamping grooves, and at the moment, the locking bodies and the L-shaped clamping grooves can be clamped and locked by reversely rotating the flap gate; when the locking limiting block rotates along with the flap gate from the fully closed position to the opening direction far away from the flap gate, the free end of the locking body can be separated from the locking limiting block, and at the moment, the locking body is in a hanging state under the dead weight, and the flap gate can rotate to an opening state.
Further is: the hydraulic hoist cylinder is provided with a stroke detection device for controlling the rotation stroke of the flap gate.
Further is: the upper part of the locking limiting block is a cylindrical body with a right-angled triangle section, the right angle of the cylindrical body is upward, and one side surface adjacent to the right angle is the outer end surface of the L-shaped clamping groove.
Further is: the right-angle portion of the cylindrical body has rounded corners.
The beneficial effects of the utility model are as follows: when the tongue flap gate is at the fully closed position, the mechanical locking device (the locking body is matched with the locking limiting block) can be used for locking, the hydraulic oil cylinder does not need to bear force, and when the tongue flap gate is unlocked, the locking device can be automatically unlocked after the tongue flap gate is rotated for a certain angle through the operating oil cylinder, and at the moment, the tongue flap gate is opened under the action of water pressure and dead weight. The device solves the problem that the valve is automatically opened when the oil leakage fault occurs in the hydraulic system of the oil cylinder due to long-term stress of the operating oil cylinder of the tongue valve at the fully closed position. The device can realize the automatic locking and unlocking operation of the flap gate in the fully closed position, does not need manual field treatment or an additional matched electromechanical locking device, and realizes the locking purpose of adopting a pure mechanical structure; meanwhile, the locking device has the advantages of simple structure, low cost, convenience in maintenance, firm locking and the like.
Drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a schematic structural view of the present utility model in a top view.
Fig. 3 is a side view of the present utility model with the flapper door in a fully closed condition.
Fig. 4 is an enlarged partial schematic view of the flap gate top position of fig. 3.
Fig. 5 is a side view of the present utility model with the flapper door in a fully open position.
FIG. 6 is a schematic diagram of the latching process of the present utility model.
Fig. 7 is a schematic diagram of an unlocking process according to the present utility model.
Marked in the figure as: the full-open hydraulic lock comprises an arc-shaped working gate 1, a flap gate 2, a hydraulic hoist cylinder 3, a locking limiting block 4, an L-shaped clamping groove 5, a rotary support 6, a second pivot 7, a locking body 8, an arc-shaped gate leaf side box steel plate 9 and a flap gate full-open limiting block 10.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 7, the utility model comprises an arc-shaped working gate 1 with an overflow surface hole, wherein a flap gate 2 is arranged in the overflow surface hole, one end of the flap gate 2 is hinged with the bottom of a side box of the overflow surface hole through a first pin shaft, the opening and closing of the flap gate 2 are controlled through a hydraulic hoist cylinder 3 arranged on the downstream side of the flap gate 2, locking limit blocks 4 are arranged on two sides of the top end of the flap gate 2 by taking the closed state of the flap gate 2 as a reference, the locking limit blocks 4 can be generally fixed in a welding mode, the top part of the side surface of the locking limit block 4 facing the downstream side is a locking surface, the locking surface is obliquely arranged relative to a horizontal plane, one end of the locking surface close to the downstream side is a lower end, and an L-shaped clamping groove 5,L-shaped clamping groove 5 is formed in the locking surface and communicated with the side end surface of the locking limit block 4 facing the downstream side; the top of the side box of the overflow meter hole is fixedly provided with rotary supports 6 which are in one-to-one correspondence with the locking limiting blocks 4, the rotary supports 6 are provided with locking bodies 8 which are arranged in a rotary mode through second pivots 7, the second pivots 7 are horizontally arranged, when the locking bodies 8 are in a free suspension state, the locking bodies 8 are in a rotary stroke of the locking limiting blocks 4, when the locking limiting blocks 4 rotate along with the flap gate 2 from an opening state to a closing state, the locking bodies 8 are driven to rotate by the upper limit points of the locking limiting blocks 4, the flap gate 2 continues to rotate until the locking bodies 8 reach the upper limit points of the locking limiting blocks 4 after reaching the full closing position, the free ends of the locking bodies 8 can fall into L-shaped clamping grooves 5 after exceeding the upper limit points of the locking limiting blocks 4, and at the moment, the locking bodies 8 and the L-shaped clamping grooves 5 can be clamped and locked by reversely rotating the flap gate 2; when the locking limiting block 4 rotates along with the flap gate 2 from the fully closed position towards the opening direction away from the flap gate 2, the free end of the locking body 8 can be separated from the locking limiting block 4, and at the moment, the locking body 8 is in a hanging state under the dead weight, and the flap gate 2 can rotate to an opening state.
The working principle of the utility model is as follows: referring to fig. 4 and 7, when the flapper valve 2 is opened, the hydraulic hoist cylinder 3 of the flapper valve 2 pushes the flapper valve 2 to rotate by a certain angle, when the lower limit point (usually the tail end of the L-shaped clamping groove 5 near the downstream side) of the locking limit block 4 on the flapper valve 2 passes over the locking body 8 (at this time, the unlocking position), the locking body 8 is in a hanging state under the dead weight, at this time, the flapper valve 2 is automatically unlocked, under the water pressure and the dead weight, until the flapper valve 2 reaches the limit block of the fully opened position (namely, the fully opened limit block 10 of the flapper valve shown in the figure, which can be implemented with reference to the prior art); when the flap gate 2 is closed, after the hydraulic hoist cylinder 3 of the flap gate 2 pushes the flap gate 2 to reach the fully closed position, the cylinder continues to extend until the locking body 8 reaches the upper limit point of the locking limit block 4 (usually the upper side wall of the L-shaped clamping groove 5, at the moment, the locking position is reached), and when the locking body 8 passes the upper limit point of the locking limit block 4, the hydraulic hoist cylinder 3 retracts for a certain length, so that the flap gate 2 is automatically locked.
It will be appreciated that the side tank structure of the overflow surface aperture should meet the above-described rotational travel requirements of the flapper valve 2. Specifically, referring to the prior art, the outer surface of the leaf side box steel plate 9 of the radial gate is used as the matching surface of the flap gate 2, and the flap gate 2 can continue to rotate after reaching the fully closed position, so that the technical requirement of the utility model is met. The water stopping structure can be implemented with reference to the prior art, and the water stopping of the flap gate 2 is performed by precompression in the side tank structure of the water seal and the overflow surface hole, and is irrelevant to the technical problem to be solved by the utility model, and the utility model is not described in detail.
It will be appreciated that the rotational travel position of the flap gate 2 can be controlled according to the skill of a person, and can also be implemented by a software algorithm, preferably: the hydraulic hoist cylinder 3 is provided with a stroke detection device for controlling the rotation stroke of the flapper valve 2.
In order to facilitate falling of the lock, the upper part of the locking limiting block 4 is a cylindrical body with a right triangle section, the right angle of the cylindrical body is upward, and one side surface adjacent to the right angle is the outer end surface of the L-shaped clamping groove 5. Further preferred are: the right-angle portion of the cylindrical body has rounded corners.
Claims (1)
1. The utility model provides a flap gate mechanical locking device, includes arc working gate (1) that have overflow table hole, installs flap gate (2) in the overflow table hole, and the one end of flap gate (2) is articulated with the side bottom of the case portion in overflow table hole through first round pin axle, opens and close through setting up in the hydraulic hoist hydro-cylinder (3) of flap gate (2) low reaches side control flap gate (2), its characterized in that: taking the state that the flap gate (2) is in a closed state as a reference, locking limit blocks (4) are arranged on two sides of the top end of the flap gate (2), the top of the side surface of the locking limit block (4) facing the downstream side is a locking surface, the locking surface is obliquely arranged relative to a horizontal plane, one end of the locking surface, which is close to the downstream side, is a lower end, an L-shaped clamping groove (5) is formed in the locking surface, and the L-shaped clamping groove (5) is communicated with the side end surface of the locking limit block (4) facing the downstream side; the top of the side box of the overflow meter hole is fixedly provided with rotary supports (6) which are in one-to-one correspondence with the locking limiting blocks (4), the rotary supports (6) are provided with locking bodies (8) which are arranged in a rotary mode through second pivots (7), the second pivots (7) are horizontally arranged, when the locking bodies (8) are in a free suspension state, the locking bodies (8) are positioned on the rotary stroke of the locking limiting blocks (4), when the locking limiting blocks (4) rotate along with the flap gate (2) from an opening state to a closing state, the locking bodies (8) are driven to rotate by the upper limit points of the locking limiting blocks (4), the flap gate (2) continues to rotate until the locking bodies (8) reach the upper limit points of the locking limiting blocks (4) after the free ends of the locking bodies (8) exceed the upper limit points of the locking limiting blocks (4), and at the moment, the free ends of the locking bodies (8) can fall into L-shaped clamping grooves (5) and the locking bodies (8) can be clamped and locked by the L-shaped clamping grooves (5) by reversely rotating the flap gate (2); when the locking limiting block (4) rotates along with the flap gate (2) from the fully closed position to the opening direction far away from the flap gate (2), the free end of the locking body (8) can be separated from the locking limiting block (4), and at the moment, the locking body (8) is in a hanging state under the dead weight, and the flap gate (2) can rotate to an opening state;
the hydraulic hoist cylinder (3) is provided with a stroke detection device for controlling the rotation stroke of the flap gate (2);
the upper part of the locking limiting block (4) is a cylindrical body with a right triangle section, the right angle of the cylindrical body is upwards, and one side surface adjacent to the right angle is the outer end surface of an L-shaped clamping groove (5); the right-angle portion of the cylindrical body has rounded corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320008558.9U CN220150247U (en) | 2023-01-04 | 2023-01-04 | Mechanical locking device for flap gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320008558.9U CN220150247U (en) | 2023-01-04 | 2023-01-04 | Mechanical locking device for flap gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220150247U true CN220150247U (en) | 2023-12-08 |
Family
ID=89007082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320008558.9U Active CN220150247U (en) | 2023-01-04 | 2023-01-04 | Mechanical locking device for flap gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220150247U (en) |
-
2023
- 2023-01-04 CN CN202320008558.9U patent/CN220150247U/en active Active
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| GR01 | Patent grant |