CN107975071B - Safety device for pit - Google Patents
Safety device for pit Download PDFInfo
- Publication number
- CN107975071B CN107975071B CN201810027673.4A CN201810027673A CN107975071B CN 107975071 B CN107975071 B CN 107975071B CN 201810027673 A CN201810027673 A CN 201810027673A CN 107975071 B CN107975071 B CN 107975071B
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- Prior art keywords
- pit
- plate
- guide rails
- lifting
- carrier plate
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/127—Manhole shafts; Other inspection or access chambers; Accessories therefor with devices for impeding fall or injuries of persons
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention provides a safety pit device, which relates to a protection device, in particular to a falling prevention device matched with a pit, and aims to solve the problem that pedestrians cannot find or rescue in time when falling into the pit; the two guide rails are oppositely arranged on the side wall of the pit; the load bearing plate is connected with the side wall of the pit in a way that one side turning plate is horizontal; under the state that the turning plate of the bearing carrier plate is horizontal, the bearing carrier plate is buckled on the two guide rails through a group of notches on the opposite side edges of the bearing carrier plate, and can do lifting movement along the guide rails; the induction device is arranged on the side wall of the pit through the fixing frame and is positioned at the wellhead of the pit; the invention can timely sense the falling human body and send the human body out of the pit after the human body falls on the load bearing plate.
Description
Technical Field
The invention relates to a protection device, in particular to a falling protection device matched with a pit.
Background
The pit is generally provided with a pit cover for ensuring safety, once the pit cover is lost, under the condition of no other protective measures, the pit cover is light to enable riders to stumble and fall into the pit, or the wheels of vehicles in running are sunk, and heavy to enable the pedestrians to fall into the pit, so that the pit cover is in coma or drowning in the pit, and even if the pit cover is awake, the pedestrians cannot find or rescue in time due to the fact that the pedestrians cannot be out of the pit even if calling for help, and finally injury to the personnel or even death of the pedestrians are caused.
Disclosure of Invention
The invention aims to solve the problem that people fall into a pit and other people cannot find or rescue in time, and provides a safety device for the pit.
The invention relates to a safety device for a pit, which comprises a pit cover, a controller, a lifting device driving motor, two guide rails, an induction device and a bearing carrier plate,
the well cover is used for sealing the well mouth of the pit; the two guide rails are oppositely arranged on the side wall of the pit;
the load bearing plate is connected with the side wall of the pit in a way that one side turning plate is horizontal; under the state that the turning plate of the bearing carrier plate is horizontal, the bearing carrier plate is buckled on the two guide rails through a group of notches on the opposite side edges of the bearing carrier plate, and can do lifting movement along the guide rails;
the induction device is arranged on the side wall of the pit through the fixing frame and is positioned at the wellhead of the pit; the sensing device is used for sensing the falling of the human body into the pit, and the signal output end of the sensing device is connected with the sensing signal input end of the controller; the motor driving control signal output end of the controller is connected with the driving control signal input end of the lifting device driving motor; the lifting device driving motor is used for driving the lifting device to do lifting motion along the guide rail.
The invention is mainly applied to the pit shaft cover which is exposed by removing the pit shaft mouth, at the moment, a person falls down, the sensing device senses that the person falls down and immediately sends a sensing signal to the controller, and the controller controls the heavy load bearing plate to be turned into a flat plate to catch the falling person;
then, the controller controls the lifting device to lift the load bearing plate, and the falling personnel are sent out of the pit;
in the invention, the bearing carrier plate and the side wall of the pit can be connected in various ways, and the bearing carrier plate can be turned down rapidly when falling occurs. And thus can be realized by an electromagnetic mode, a hook mode and the like.
At daily, the bearing carrier plate can be sideways in the well also can directly lay in the well, and the mode of direct tiling only need the top open when maintainer business turn over can, compare in the mode security of side standing higher.
The beneficial effects of the invention are as follows: the human body that can in time respond to the falling to rise after the human body drops the loading board, send out the human body outside the cellar for storing things well, thereby make other people discover and in time rescue, reduced the risk that the cellar for storing things well that falls more than 90% caused the injury to the person even die.
Drawings
FIG. 1 is a schematic diagram of a security device for a pit according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic diagram of a circuit module of a security device for pit according to the present invention;
FIG. 4 is a schematic diagram of a safety device for a pit according to a second embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at B;
FIG. 6 is a top plan view of a sensing device of a security device for a pit of the present invention;
fig. 7 is a top plan view of a load bearing carrier plate of a security device for pit of the present invention.
Detailed Description
Detailed description of the preferred embodiments
The invention relates to a safety device for a pit, which comprises a pit cover, a controller 1, a lifting device 2, a lifting device driving motor 3, two guide rails 4, an induction device 5 and a bearing carrier plate 6.
The well cover is used for sealing the well mouth of the pit; the two guide rails 4 are oppositely arranged on the side wall of the pit;
the load bearing plate 6 is connected with the side wall of the pit in a way that one side turns over the plate to be horizontal; in a state that the turnover plate of the bearing carrier plate 6 is horizontal, the bearing carrier plate 6 is buckled on the two guide rails 4 through a group of notches on the opposite side edges of the bearing carrier plate, and can do lifting motion along the guide rails 4;
one side of the load bearing plate 6 is provided with a rotating shaft, the side wall of the pit is provided with a corresponding shaft sleeve, the shaft sleeve is positioned on two sides of one guide rail 4 and is opened above the shaft sleeve, and the opened arrangement can be easily separated from the shaft sleeve after the load bearing plate 6 ascends.
The induction device 5 is arranged on the side wall of the pit through a fixing frame 7 and is positioned at the wellhead of the pit; the sensing device 5 is used for sensing the falling of the human body into the pit, and the signal output end of the sensing device 5 is connected with the sensing signal input end of the controller 1; the motor driving control signal output end of the controller 1 is connected with the driving control signal input end of the lifting device driving motor 3; the lifting device driving motor 3 is used for driving the lifting device 2 to do lifting motion along the guide rail.
The induction device 5 comprises an induction plate and an inductor, the induction plate is plate-shaped and is arranged on the side wall of the pit through a fixing frame 7, the inductor is arranged in the induction plate, a microwave inductor, a photoelectric inductor and the like can be adopted, the induction device senses the approach of a human body and generates a signal to be output to the controller 1, and the controller 1 outputs a motor driving signal to drive the lifting device to drive the motor 3 to operate.
The second embodiment, the difference between the present embodiment and the first embodiment is that the specific structure of the bearing carrier plate 6 connected to the side wall of the pit in a manner that one side turning plate is horizontal is that a point on the side edge of the bearing carrier plate 6 is connected to one end of the hinge; an electromagnetic relay 8 is arranged on the side wall of the pit, and the electromagnetic relay 8 is used for adsorbing the other end of the hinge; the control signal input end of the electromagnetic relay control coil is connected with the control signal output end of the relay control coil of the controller 1.
Besides the electrical mode of using the electromagnetic relay 8, a mechanical linkage mode can be adopted, as shown in fig. 4 or fig. 5, a crank arm is hinged on one side of the fixing frame 7 through a connecting rod, the middle part of the crank arm is hinged with the side wall of the pit, the upper part of the bearing carrier plate 6 is fixed on the side wall of the pit through an elastic clamp and the like, when the induction device 5 is pressed down by external force, the fixing frame 7 drives the crank arm, and the crank arm pushes the bearing heavy-load plate 6 to separate from the elastic clamp, so that the bearing carrier plate 6 falls.
The third embodiment is different from the first embodiment in that a pair of lifting devices 2 are respectively mounted on two guide rails 4 and can perform lifting motion along the guide rails 4, and one side of the lifting device 2 can be mounted on the guide rails 4 in an embedded manner, so that the lifting device can be lifted freely without being separated from the guide rails 4.
A pair of elevating gear driving motors 3 are respectively arranged on the two guide rails 4, the elevating gear 2 on the same side is fixed above the elevating gear driving motors 3, namely, one elevating gear driving motor 3 is arranged below each elevating gear 2, and the burden of a single motor can be reduced by adopting the elevating gear 2 and the elevating gear driving motor 3 in pairs.
The fourth embodiment, the fourth embodiment and the first or third embodiment are different in that a rack is provided in the guide rail 4, the lifting device driving motor 3 is in transmission fit with a driving gear through a reducer, and the driving gear is meshed with the rack.
The lifting device driving motor 3 drives the driving gear to rotate, and the driving gear converts rotation into up-and-down translation of the rack, so that the lifting device 2 is driven to move up and down.
The fifth embodiment is different from the fourth embodiment in that the lifting device driving motor 3 is a stepping motor.
The rotation speed and the stop position of the stepping motor are only dependent on the frequency and the pulse number of the pulse signal under the condition of no overload, and are not influenced by load change, so that the lifting device driving motor 3 can adopt the stepping motor under the condition of uncertain weight of a person in a falling well.
The sixth embodiment differs from the first embodiment in that the upper surface of the sensing device 5 is transparent, and the lighting lamp is installed inside the sensing device 5.
The inside illuminating lamp of induction system 5 can give out light, so when the well lid of pit is lost, the light of light can shine the earth's surface top, and then can let subaerial passerby see light, indicates here pit and loses the well lid, reminds passerby to detour.
The seventh embodiment is different from the first embodiment in that the sensing device 5 is provided with a plurality of water permeable holes penetrating up and down. When the well is full of water and the water level rises, the induction device 5 is prevented from being influenced by the buoyancy of the water, so that the water permeable holes are formed in the induction device, and the water can permeate the induction device 5 and is not influenced by the buoyancy.
The eighth embodiment is different from the first embodiment in that a plurality of water permeable holes penetrating up and down are provided on the bearing carrier plate 6. When the well is full of water, the load bearing plate 6 is prevented from being influenced by the buoyancy of the water, so that the water permeable holes are formed in the load bearing plate 6, and the water can permeate through the load bearing plate 6 and is not influenced by the buoyancy.
The difference between the ninth embodiment and the eighth embodiment and the first or eighth embodiment is that the bearing carrier plate 6 is further provided with a buffer device, and the buffer device can be rubber, an inflatable cushion, sponge or a spring set, etc., and is used for buffering the human body falling on the carrier plate 4, so as to reduce the damage of impact force to the human body.
The invention relates to a safety device for a pit, which comprises the following specific working procedures:
the invention is mainly applied to the pit shaft cover being removed, the pit shaft mouth being exposed, when someone falls, the sensing device senses that the person falls and immediately sends a sensing signal to the controller, and the controller controls the heavy load bearing plate turnover plate to be a flat plate to catch the falling person;
then, the controller controls the lifting device to lift the load bearing plate 6, and the falling personnel are sent out of the pit;
in this embodiment, the bearing carrier plate 6 and the pit side wall can adopt various connection modes, so long as the bearing carrier plate 6 is turned down rapidly when falling occurs. And thus can be realized by electromagnetic means, hooks or the like.
In daily life, bearing carrier plate 6 can be sideways in the well also can directly lay in the well, and the mode of direct tiling only need the top open when maintainer business turn over can, compare in the mode security of side standing higher.
Claims (7)
1. The safety device for the pit comprises a pit cover and is characterized by also comprising a controller (1), a lifting device (2), a lifting device driving motor (3), two guide rails (4), an induction device (5) and a bearing carrier plate (6),
the well cover is used for sealing the well mouth of the pit; the two guide rails (4) are oppositely arranged on the side wall of the pit;
the load bearing plate (6) is connected with the side wall of the pit in a way that one side of the load bearing plate turns over the plate to be horizontal; in a state that the turning plate of the bearing carrier plate (6) is horizontal, the bearing carrier plate (6) is buckled on the two guide rails (4) through a group of notches on the opposite side edges of the bearing carrier plate, and can do lifting movement along the guide rails (4);
the induction device (5) is arranged on the side wall of the pit through a fixing frame (7) and is positioned at the wellhead of the pit; the sensing device (5) is used for sensing the falling of the human body into the pit, and the signal output end of the sensing device (5) is connected with the sensing signal input end of the controller (1); the motor driving control signal output end of the controller (1) is connected with the driving control signal input end of the lifting device driving motor (3); the lifting device driving motor (3) is used for driving the lifting device (2) to do lifting motion along the guide rail;
the controller (1) controls the turnover plate of the load bearing plate (6) to be a flat plate to catch falling personnel; the controller (1) controls the lifting device (2) to lift the load bearing plate (6) and send falling personnel out of the pit;
the concrete structure of the bearing carrier plate (6) which is connected with the side wall of the pit in a way that one side turning plate is horizontal is that one point on the side edge of the bearing carrier plate (6) is connected with one end of a hinge; an electromagnetic relay (8) is arranged on the side wall of the pit, and the electromagnetic relay (8) is used for adsorbing the other end of the hinge; the control signal input end of the electromagnetic relay control coil is connected with the control signal output end of the relay control coil of the controller (1);
a plurality of water permeable holes which are vertically communicated are arranged on the induction device (5).
2. A safety device for a pit according to claim 1, characterized in that a pair of lifting devices (2) are mounted on two guide rails (4) respectively and can be moved up and down along the guide rails (4); a pair of lifting device driving motors (3) are respectively arranged on the two guide rails (4); the lifting devices (2) on the same side are fixed above the lifting device driving motor (3).
3. A safety device for a pit according to claim 1 or 2, characterized in that the guide rail (4) is internally provided with a rack, the lifting device driving motor (3) is fitted with a driving gear through a reducer transmission, and the driving gear is meshed with the rack.
4. A safety arrangement for a pit according to claim 3, characterized in that the lifting device drive motor (3) is a stepper motor.
5. A safety device for a pit according to claim 1, characterized in that the upper surface of the sensing device (5) is transparent, and that the interior of the sensing device (5) is provided with a lighting lamp.
6. A safety device for a pit according to claim 1, characterized in that the load bearing plate (6) is provided with a plurality of water permeable holes penetrating up and down.
7. Safety device for a pit according to claim 1 or 6, characterized in that the inside of the load bearing plate (6) is provided with a buffer device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810027673.4A CN107975071B (en) | 2018-01-11 | 2018-01-11 | Safety device for pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810027673.4A CN107975071B (en) | 2018-01-11 | 2018-01-11 | Safety device for pit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107975071A CN107975071A (en) | 2018-05-01 |
| CN107975071B true CN107975071B (en) | 2023-08-01 |
Family
ID=62005852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810027673.4A Active CN107975071B (en) | 2018-01-11 | 2018-01-11 | Safety device for pit |
Country Status (1)
| Country | Link |
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| CN (1) | CN107975071B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442407B (en) * | 2018-05-28 | 2023-10-27 | 中国电建集团贵阳勘测设计研究院有限公司 | Vertical shaft anti-falling device |
| CN109610604B (en) * | 2018-11-09 | 2021-03-16 | 南宁学院 | Municipal administration sewage pipes are used prevents junk device |
| CN111962892A (en) * | 2020-06-05 | 2020-11-20 | 易佑华 | Protection device for power plant coal lifting hole |
| CN112012244B (en) * | 2020-09-07 | 2021-11-12 | 胡林华 | Municipal administration protector |
| CN114960762B (en) * | 2022-06-01 | 2023-12-12 | 京鑫建设集团有限公司 | Well ring construction anti-falling device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007281033A1 (en) * | 2006-08-04 | 2008-02-07 | Anue Water Technologies, Inc. | Well cleaning apparatus |
| CN104452817A (en) * | 2014-12-25 | 2015-03-25 | 东南大学 | Safety inspection well |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10280450A (en) * | 1997-04-04 | 1998-10-20 | Toda Constr Co Ltd | Climbing-up-and-down frame for manhole |
| CN204940481U (en) * | 2015-09-18 | 2016-01-06 | 重庆市潼南排水有限公司 | A kind of fall arrest sewage conduct |
| CN206706952U (en) * | 2017-05-05 | 2017-12-05 | 董力 | Sewer automates drainage system |
| CN207714380U (en) * | 2018-01-11 | 2018-08-10 | 黑龙江科技大学 | A kind of safety device for Jiao Jing |
-
2018
- 2018-01-11 CN CN201810027673.4A patent/CN107975071B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2007281033A1 (en) * | 2006-08-04 | 2008-02-07 | Anue Water Technologies, Inc. | Well cleaning apparatus |
| CN104452817A (en) * | 2014-12-25 | 2015-03-25 | 东南大学 | Safety inspection well |
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| Publication number | Publication date |
|---|---|
| CN107975071A (en) | 2018-05-01 |
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