CN212836810U - Protective device for hoisting opening - Google Patents
Protective device for hoisting opening Download PDFInfo
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- CN212836810U CN212836810U CN202020325219.XU CN202020325219U CN212836810U CN 212836810 U CN212836810 U CN 212836810U CN 202020325219 U CN202020325219 U CN 202020325219U CN 212836810 U CN212836810 U CN 212836810U
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- hoist
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- 230000007246 mechanism Effects 0.000 claims description 18
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- 238000010586 diagram Methods 0.000 description 6
- 230000007306 turnover Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001012 protector Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
One or more embodiments of the present disclosure provide a protective device for a lifting port, including: the frame is rectangular; the frame is arranged around the hoisting port; the cover plate and the guardrail are rotatably connected with the frame; the edge of the connecting side of the cover plate and the frame is provided with a gap part, and the gap part is provided with a rotatable guard rail. When equipment needing to be placed and lifted the beam is hoisted, the protective fence is opened, the beam can be placed and lifted, protective devices such as a cover plate do not need to be removed, and the safety of the protective device at the hoisting opening is improved.
Description
Technical Field
One or more embodiments of this description relate to hoist and mount operation technical field, especially relate to a protector for hoist and mount mouth.
Background
Lifting ports are often provided in buildings at power plants and the like for lifting equipment, such as gate lifting ports of hydroelectric power plants, into and out of gates and equipment during maintenance of the units, gates and gate slots. When the lifting device is not used in normal times, the cover plate is used as a protective device to cover the lifting openings.
When needs use the hoist and mount mouth, by operating personnel with the apron whole remove or overturn 90 degrees, fall with the foreign matter in order to prevent personnel and fall into the hoist and mount mouth, need set up interim rail around the hoist and mount mouth as protector, waste time and energy. In order to solve the problem, a cover plate and a guardrail are arranged around the existing hoisting port, when the hoisting port works, the cover plate and the guardrail are opened, the cover plate in a vertical state is connected with the guardrail, and a protection device is formed jointly.
The above-mentioned protective device for the lifting hole still has an inconvenient place in practical use. The inventor finds that when the lifting opening is lifted into equipment needing to be matched with the lifting beam for use, the lifting beam collides with the safety protection device. If when placing the gate at gate hoist and mount mouth, lift the roof beam with flat gate cooperation is placed and need place in hoist and mount mouth top, lift the roof beam and can conflict with the guardrail of hoist and mount mouth mutually, just at this moment need remove guardrail, have the potential safety hazard.
Disclosure of Invention
In view of the above, an object of one or more embodiments of the present disclosure is to provide a protection device for a hoistway, so as to solve the problem of low safety of the protection device for the hoistway.
In view of the above, one or more embodiments of the present disclosure provide a protective device for a lifting hole, including: the frame is rectangular; the frame is arranged around the hoisting port; the cover plate and the guardrail are rotatably connected with the frame; the edge of the connecting side of the cover plate and the frame is provided with a gap part, and the gap part is provided with a rotatable guard rail.
Preferably, the cover plate includes: a first cover plate and a second cover plate; the first cover plate is of a grid structure; the second cover plate is of a frame structure; the first cover plate and the second cover plate are respectively connected to two sides of the frame which are not adjacent; the first cover plate is arranged above the second cover plate.
Preferably, the underside of the first cover plate is provided with a metal mesh.
Preferably, the method further comprises the following steps: the turning plate is rotatably arranged on the frame; the turning plate is arranged above the first cover plate and is connected with the first cover plate through a bolt in a closed state of the protection device; the turning plate and the first cover plate have different rotating shafts.
Preferably, the guard rails are disposed at the other two sides of the frame; and under the opening state of the protective device, the guardrail in the vertical state is connected with the cover plate in the vertical state.
Preferably, the cover plate is connected to the frame by a gear mechanism comprising: the gear transmission mechanism comprises a support frame, a first gear shaft, a second gear shaft, a first gear and a second gear; the supporting frame is fixed on the frame; the first gear shaft and the second gear shaft are both rotatably arranged on the support frame and are parallel to each other; the first gear is fixedly connected with the first gear shaft, is fixedly connected with one end of the cover plate and can move along with the cover plate; the second gear is meshed with the first gear; the first gear is an arch gear, the arch gear is provided with a circle-lacking part, and the arch gear is fixedly connected with the cover plate through the circle-lacking part.
Preferably, the gear mechanism further comprises: one end of the heavy hammer, one end of the second gear and one end of the heavy hammer are fixedly connected with the second gear shaft, and the second gear can drive the second gear shaft and the heavy hammer to rotate together.
Preferably, the guard for the hoist comprises at least one gear mechanism.
Preferably, the method further comprises the following steps: and two ends of the torsion spring are respectively fixedly connected with the frame and the cover plate.
As can be seen from the above, one or more embodiments of the present disclosure provide a guard for a hoist, including: the frame is rectangular; the frame is arranged around the hoisting port; the cover plate and the guardrail are rotatably connected with the frame; the edge of the connecting side of the cover plate and the frame is provided with a gap part, and the gap part is provided with a rotatable guard rail. When equipment needing to be placed and lifted the beam is hoisted, the beam can be placed by opening the rotatable guard rail without removing protective devices such as cover plates, and the safety of the protective device at the hoisting opening is improved.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.
Fig. 1 is a schematic structural diagram of a first implementation state of a protective device for a hoisting port, which is provided in one or more embodiments of the present disclosure;
fig. 2 is a schematic structural diagram of a second implementation state of the protection device for the hoisting port, which is provided in one or more embodiments of the present disclosure;
fig. 3 is a schematic structural diagram of a third implementation state of the protection device for the hoisting port, provided in one or more embodiments of the present disclosure.
Detailed Description
For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To achieve the above objects, one or more embodiments of the present disclosure provide a protective device for a hoist, which is applied to a hoist, such as an equipment hoist, a gate hoist, etc., and the disclosure is not particularly limited thereto. The protection for the hoist opening will first be described in detail below.
Fig. 1 is a schematic structural diagram of a first implementation state of a protective device for a hoisting port, provided in one or more embodiments of the present disclosure. The protection device for hoist and mount mouth that this disclosure provided includes:
the device comprises a frame 1, a cover plate 2 and a guardrail 3, wherein the frame 1 is rectangular, and the frame 1 is arranged around a hoisting port; the cover plate 2 and the guard bar 3 are rotatably connected to the frame 1; the edge of the connecting side of the cover plate 2 and the frame 1 is provided with a gap part, and the gap part is provided with a rotatable guard rail 4.
The hoisting opening is usually arranged on buildings in places such as power plants and the like for hoisting equipment in and out, in particular, the hoisting opening of an inspection gate is used for hoisting a gate and equipment in and out during inspection, and the inspection gate is a gate for temporarily retaining water during inspection of a hydraulic structure or a work gate and a gate slot thereof.
The hoist opening is generally rectangular and the frame 1 is adapted to be arranged around the hoist opening, corresponding to which the frame 1 is rectangular.
The non-adjacent two ends of the frame 1 are provided with cover plates 2. In one case, two cover plates 2 are respectively provided on the two long sides of the frame 1.
In one case, the cover plate 2 includes a first cover plate having a lattice structure and a second cover plate having a frame structure. The air flow channel has the ventilation function no matter the grid structure or the frame structure, and particularly, in a hydroelectric power plant, during the starting process of the generating working condition of the unit, air in the flow channel can be quickly extruded by high-speed water flow, and the impact of the high-speed air on the cover plate 2 is large, so that the safety hazard is large. When the grill structure and the frame structure are used, such air can be discharged through the gaps of the grill structure and the frame structure, and the impact of the airflow on the cover plate 2 is reduced.
In one case, a layer of metal mesh, such as stainless steel mesh or other metal mesh, may be disposed on the lower side of the first cover plate, which is not particularly limited by the present disclosure. The grid gap of grid structure is great, may have foreign matter such as grit to fall into the hoist and mount mouth, produces harm, through setting up the metal mesh, under the condition that keeps apron 2 to ventilate, also can prevent that the foreign matter from falling into in the hoist and mount mouth through the space of grid. Meanwhile, the metal net has better strength and is not easy to damage.
The area size of first apron and second apron is about the size of frame 1 area, and they all can open and close, and when closing, first apron and second apron horizontal placement all closely cooperate with frame 1, cover the hoist and mount mouth, and first apron is in the top of second apron.
The other two ends of the frame 1 are provided with guardrails 3. In one case, two guard rails 3 are provided on the two short sides of the frame 1, respectively.
The width of the guardrail 3 is the same as the length of the edge of the frame 1 connected with the guardrail, and the guardrail has a certain height, and the specific height is set by taking the function of safety protection as a standard, which is not specifically limited in the disclosure. Guardrail 3 can open and close, and when closed, guardrail 3 level is placed on first apron, and the hoist and mount mouth closes completely promptly.
After the cover plate 2 and the guardrail 3 are opened, the cover plate 2 at the vertical position is connected with the guardrail 3 at the vertical position by a hook to form a protective structure as shown in figure 1.
The cover plate 2 is rotatably connected to the frame 1 through a gear mechanism, which includes: the gear transmission mechanism comprises a support frame, a first gear shaft, a second gear shaft, a first gear and a second gear; the supporting frame is fixed on the frame 1; the first gear shaft and the second gear shaft are both rotatably arranged on the support frame and are parallel to each other; the first gear is fixedly connected with a first gear shaft, is fixedly connected with one end of the cover plate 2 and can move along with the cover plate 2; the second gear is meshed with the first gear.
The first gear is an arch gear, the arch gear is provided with a circle-lacking part, and the arch gear is fixedly connected with the cover plate 2 through the circle-lacking part.
The gear mechanism further includes: one end of the heavy hammer, one end of the second gear and one end of the heavy hammer are fixedly connected with the second gear shaft, and the second gear can drive the second gear shaft and the heavy hammer to rotate together.
When the cover plate 2 is pulled to rotate by a hand zipper (not shown in the figure), the first gear also rotates along with the cover plate 2, the second gear meshed with the first gear rotates towards the opposite direction, and the heavy hammer is driven to rotate together, so that the effect of saving labor is achieved through the heavy hammer.
The guard for the hoist comprises at least one gear mechanism.
In one case, because the first cover plate is of a grid structure, the weight is large, and a gear mechanism needs to be arranged; the second cover plate is of a frame structure, is small in mass and generally does not need to be provided with a gear mechanism. Similarly, because the guardrail 3 has a small mass, a gear mechanism is not required. The number of the gear mechanisms can be set according to the length of the cover plate 2, and the longer the cover plate 2 is, the more the number of the gear mechanisms needs to be set.
In one aspect, a protective device for a hoist includes: and two ends of the torsion spring are respectively fixedly connected with the frame 1 and the cover plate 2. The torsion spring provides a closing force for the cover plate 2 when the cover plate 2 is closed.
In one aspect, a protective device for a hoist includes: the turnover plate is rotatably arranged on the frame 1, the turnover plate is arranged above the first cover plate and is connected with the first cover plate through bolts under the closed state of the cover plate 2, and rotating shafts used by the turnover plate and the first cover plate are different, so that the turnover plate limits the rotating movement of the first cover plate, and the first cover plate cannot be opened. When the first cover plate is opened, the bolt is unscrewed, and the first cover plate can be opened only after the turnover plate is opened, so that the danger of mistakenly opening the first cover plate is reduced.
Fig. 2 is a schematic structural diagram of a second implementation state of the protection device for the hoisting port, provided in one or more embodiments of the present disclosure.
The rotation angle of the guardrail 3 is 180 degrees, namely the guardrail 3 can be poured to one side of the hoisting opening and also can be poured to one side of a building. When the guardrail 3 falls to one side of the building, the normal moving requirement of the equipment between different hoisting ports can be met. If the maintenance equipment is shared by a plurality of units, the protection device for the lifting hole can not influence the normal movement of the maintenance equipment between different lifting holes.
Fig. 3 is a schematic structural diagram of a third implementation state of the protection device for the hoisting port, provided in one or more embodiments of the present disclosure.
The corners of the connecting sides of the first cover plate and the second cover plate with the frame 1 are both provided with notch parts, and the notch parts are provided with rotatable guard rails 4.
In one case, when the lifting port is hung with equipment for lifting the beam, the lifting beam needs to be placed above the lifting port, because the lifting beam is longer than the width of the lifting port, the lifting beam can conflict with the protection structure of the lifting port, and at this time, the lifting beam can be placed by opening the protective guard 4. When the guard rail is opened, the guard rail 4 is turned to the other side and fixed on the cover plate 2.
Specifically, after the equipment is hung at a certain position of a hoisting port, the guardrail 3 is opened, the guardrail 3 is made to fall to one side of the building, the guardrails 4 on the two cover plates 2 are opened, the lifting beam is placed at the gap part at the joint of the cover plates 2 and the frame 1, and then the equipment is continuously placed until the specified part at the upper end of the equipment falls on the lifting beam.
The lifting beam can be made of I-shaped steel, and the I-shaped steel is long-strip steel with an I-shaped cross section.
In one case, when the lifting port is used for lifting equipment without a lifting beam, the protective guard 4 is not opened, and the protective guard 4 is integrated with the cover plate 2.
The inventor discovers in practice that the existing protection device is about to fix a cover plate and a guardrail around a hoisting port, when the hoisting port is opened, the cover plate and the guardrail are erected to form the protection device, the inconvenience that the temporary protection device needs to be arranged in the prior art is solved, however, the protection device tightly surrounds the hoisting port, the arrangement of the protection device can only be suitable for equipment without arranging a lifting beam, when the equipment needing to be arranged on the lifting beam is hoisted, the protection device can only be removed, workers and other equipment are extremely easy to fall into the hoisting port, and therefore the protection device has great potential safety hazards, in order to reduce the potential safety hazards, the temporary protection device can only be arranged again, time and labor are wasted, and the arrangement of the protection device is retreated.
Based on the discovery, the inventor researches and flexibly sets up the structure of the cover plate, and a rotatable part is arranged in a specific area on the cover plate, so that the protection device can be compatible with a beam lifting device, and the safety problem and the application problem of complex working conditions can be solved.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.
While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (9)
1. A guard for a hoist, comprising: the guardrail comprises a frame, a cover plate and guardrails, and is characterized in that the frame is rectangular; the frame is arranged around the hoisting port; the cover plate and the guardrail are rotatably connected to the frame; the edge of the connecting side of the cover plate and the frame is provided with a notch part, and the notch part is provided with a rotatable guard rail.
2. The guard for a hoist according to claim 1, characterized in that the cover plate comprises: a first cover plate and a second cover plate; the first cover plate is of a grid structure; the second cover plate is of a frame structure; the first cover plate and the second cover plate are respectively connected to two sides of the frame, which are not adjacent to each other; the first cover plate is arranged above the second cover plate.
3. A guard for a hoist according to claim 2, characterized in that the underside of the first cover plate is provided with a metal mesh.
4. The guard for a hoist according to claim 2, further comprising: the turning plate is rotatably arranged on the frame; in the closed state of the protective device, the turning plate is arranged above the first cover plate and is connected with the first cover plate through a bolt; the turning plate and the first cover plate have different rotating shafts.
5. A guard for a hoist according to claim 2, wherein the guard rail is provided on the other two sides of the frame; and under the opening state of the protective device, the guardrail in the vertical state is connected with the cover plate in the vertical state.
6. The guard for a hoist according to claim 1, wherein the cover plate is connected to the frame by a gear mechanism, the gear mechanism comprising: the gear transmission mechanism comprises a support frame, a first gear shaft, a second gear shaft, a first gear and a second gear; the supporting frame is fixed on the frame; the first gear shaft and the second gear shaft are both rotatably arranged on the support frame and are parallel to each other; the first gear is fixedly connected with the first gear shaft, is fixedly connected with one end of the cover plate and can move along with the cover plate; the second gear is meshed with the first gear; the first gear is an arch gear, the arch gear is provided with a circle-lacking part, and the arch gear is fixedly connected with the cover plate through the circle-lacking part.
7. The guard for a hoist port of claim 6, wherein the gear mechanism further comprises: and one end of the heavy hammer and one end of the second gear are both fixedly connected with the second gear shaft, and the second gear can drive the second gear shaft and the heavy hammer to rotate together.
8. A guard for a hoist according to claim 6, characterized in that the guard for a hoist includes at least one of the gear mechanisms.
9. The guard for a hoist according to claim 2, further comprising: and the two ends of the torsion spring are fixedly connected with the frame and the cover plate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020325219.XU CN212836810U (en) | 2020-03-16 | 2020-03-16 | Protective device for hoisting opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020325219.XU CN212836810U (en) | 2020-03-16 | 2020-03-16 | Protective device for hoisting opening |
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| Publication Number | Publication Date |
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| CN212836810U true CN212836810U (en) | 2021-03-30 |
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| CN202020325219.XU Active CN212836810U (en) | 2020-03-16 | 2020-03-16 | Protective device for hoisting opening |
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| CN (1) | CN212836810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364787A (en) * | 2020-03-16 | 2020-07-03 | 国家电网有限公司 | Protective device for lifting opening and using method |
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2020
- 2020-03-16 CN CN202020325219.XU patent/CN212836810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364787A (en) * | 2020-03-16 | 2020-07-03 | 国家电网有限公司 | Protective device for lifting opening and using method |
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