CN109335915B - Building construction elevator safety protection mechanism - Google Patents
Building construction elevator safety protection mechanism Download PDFInfo
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- CN109335915B CN109335915B CN201811363886.0A CN201811363886A CN109335915B CN 109335915 B CN109335915 B CN 109335915B CN 201811363886 A CN201811363886 A CN 201811363886A CN 109335915 B CN109335915 B CN 109335915B
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- elevator
- fixedly connected
- protection
- wall
- elevator body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
Abstract
The invention discloses a building construction elevator safety protection mechanism which comprises a protection foundation pit, an elevator protection housing and an elevator body, wherein the elevator protection housing is vertically arranged on the inner wall of the protection foundation pit, the elevator body is positioned in the elevator protection housing, a vertically arranged fixed friction strip is fixedly connected to the inner wall of the elevator protection housing, friction plates are symmetrically and fixedly connected to the outer wall of the elevator body relative to the fixed friction strip, and a piston cylinder and a sliding rheostat are fixedly connected to the inner top of the elevator body at the corresponding position of one friction plate. Has the advantages that: install safety protection mechanism additional to the construction elevator, in case lead to the elevator body to take place to fall because equipment or human factor problem for the speed that falls with the elevator body produces the heat through the contact between fixed friction strip and the friction disc for memory metal stick contact conducting ring, intercommunication department compel the circuit of falling, the condition of avoiding falling the too fast equipment and personnel casualties that leads to of speed has higher security.
Description
Technical Field
The invention relates to the technical field of building construction elevators, in particular to a safety protection mechanism of a building construction elevator.
Background
The construction elevator for building is a machine which adopts a gear-rack meshing mode or a steel wire rope lifting mode to make a suspension cage do vertical or inclined motion so as to convey personnel and materials. The construction elevator is a frequently used construction machine for carrying people and goods in buildings, and is mainly used for the interior and exterior decoration of high-rise buildings, the construction of buildings such as bridges, chimneys and the like. Due to the unique box body structure, constructors can sit comfortably and safely. The construction elevator is usually matched with a tower crane to be used on a construction site.
Building construction elevator among the prior art generally does not equip safety device in order to save the cost, in case the elevator meets equipment or human factor and easily induces the elevator railway carriage or compartment to fall, causes the condition of equipment damage and casualties, has great potential safety hazard.
Disclosure of Invention
The invention aims to solve the problems in the background art, and provides a building construction elevator safety protection mechanism which can force the elevator to descend in time when the elevator falls so as to ensure the safety of equipment and people.
In order to achieve the purpose, the invention adopts the following technical scheme: a building construction elevator safety protection mechanism comprises a protection foundation pit, an elevator protection housing and an elevator body, wherein the elevator protection housing is vertically arranged on the inner wall of the protection foundation pit, the elevator body is positioned in the elevator protection housing, the inner wall of the elevator protection housing is fixedly connected with a vertically arranged fixed friction strip, friction plates are symmetrically and fixedly connected to the outer wall of the elevator body relative to the fixed friction strip, a piston cylinder and a sliding rheostat are fixedly connected to the corresponding position of one friction plate on the inner top of the elevator body, a heat conduction plug and a piston are arranged in the piston cylinder, one end, far away from the elevator protection housing, of one friction plate is fixedly connected with a heat conduction rod, one end, far away from the friction plate, of the heat conduction rod penetrates through the piston cylinder and is fixedly connected with the heat conduction plug, one side, far away from the heat conduction plug, of the piston is fixedly connected with a transmission rod, one end, far away, the piston cylinder between the heat conducting plug and the piston is filled with low-boiling-point evaporation liquid, one end, away from the elevator protective housing, of the other friction plate is fixedly connected with a memory metal rod, the memory metal rod penetrates through the elevator body, a plurality of connecting plates are fixedly connected to the inner wall of the elevator body in the circumferential direction by taking the memory metal rod as a circle center, and a conducting ring is fixedly connected to one end, away from the memory metal rod, of each connecting plate;
the elevator protection device comprises an elevator body, a protection foundation pit, an electric magnet, a shielding plate, an electric telescopic rod and a telescopic end, wherein the bottom of the elevator body is fixedly connected with a magnetic block, the inner bottom of the protection foundation pit is fixedly provided with the electric magnet, the electric magnet comprises an iron core and a conductive winding wound on the iron core, the shielding plate is symmetrically arranged inside the elevator protection housing between the elevator body and the electric magnet, the elevator protection housing and the inner wall of the protection foundation pit are jointly provided with a sliding chute in sliding fit with the shielding plate, the protection foundation pit is provided with a horizontally arranged storage box at a position corresponding to the sliding chute, the inner wall of the storage box is;
the electric conduction winding, the electric telescopic rod, the electric conduction ring, the memory metal rod and the sliding rheostat are connected with an external power supply through leads to form a forced landing circuit, and the electric telescopic rod is connected with an external auxiliary power supply and a manual switch through leads to form a reset circuit.
In the safety protection device for the building construction elevator, the friction plate is of an automobile spoiler structure, the bent surface of the friction plate is close to the fixed friction strip, and the friction plate is made of elastic materials.
In the safety protection device for the building construction elevator, the piston cylinder is made of heat-insulating materials, the heat-conducting plug is fixedly connected with the inner wall of the piston cylinder, and the piston is in sliding fit with the inner wall of the piston cylinder.
In the safety protection device for the building construction elevator, the connecting plate is made of an insulating material.
Compared with the prior art, this construction elevator safety protection mechanism's advantage lies in:
1. the safety protection device is additionally arranged on the building construction elevator, once the elevator body falls due to equipment or human factor problems, the falling speed of the elevator body generates heat through the contact between the fixed friction strip and the friction plate, so that the memory metal rod is in contact with the conductive ring to communicate with the forced landing circuit, the condition that equipment and personnel are injured and killed due to the excessively high falling speed is avoided, and the safety protection device has high safety;
2. the heat is conducted to the low-boiling-point evaporated liquid through the conductive rod and the heat conducting plug, the evaporated liquid is evaporated and gasified and drives the piston and the transmission rod to drive the sliding sheet on the sliding rheostat to slide, the resistance change of the sliding rheostat is flexibly controlled, and the electromagnet flexibly generates different magnetic forces to repel the magnetic blocks to finish the forced landing of the elevator body.
Drawings
Fig. 1 is a front view of a safety protection mechanism of a building construction elevator according to the present invention;
fig. 2 is a top view of a safety protection mechanism of a building construction elevator provided by the invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a circuit diagram of the forced landing circuit and the reset circuit of the safety protection mechanism of the building construction elevator provided by the invention.
In the figure: the elevator comprises a protection foundation pit 1, an elevator protection cover 2, an elevator body 3, a magnetic block 4, a fixed friction strip 5, a friction plate 6, a memory metal rod 7, a connecting plate 8, a conductive ring 9, a piston cylinder 10, a heat conducting plug 11, a heat conducting rod 12, a transmission rod 13, a slide rheostat 14, a storage box 15, an electric telescopic rod 16, a shielding plate 17, an electromagnet 18 and a piston 19.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-4, a building construction elevator safety protection mechanism comprises a protection foundation pit 1, an elevator protection housing 2 and an elevator body 3, wherein the elevator protection housing 2 is vertically arranged on the inner wall of the protection foundation pit 1, the elevator body 3 is positioned in the elevator protection housing 2, the inner wall of the elevator protection housing 2 is fixedly connected with a vertically arranged fixed friction strip 5, the fixed friction strip 5 is always in clearance fit with two friction plates 6 when the elevator body 3 normally operates, friction plates 6 are symmetrically and fixedly connected with the outer wall of the elevator body 3 relative to the fixed friction strip 5, a piston cylinder 10 and a slide rheostat 14 are fixedly connected with the inner top of the elevator body 3 at the corresponding position of one friction plate 6, a heat conducting plug 11 and a piston 19 are arranged in the piston cylinder 10, one end of one friction plate 6, which is far away from the elevator protection housing 2, is fixedly connected with a heat conducting rod 12, one end of the heat conducting rod 12, which is far away from the, a transmission rod 13 is fixedly connected to one side of the piston 19 far away from the heat conducting plug 11, one end of the transmission rod 13 far away from the piston 19 penetrates through the piston cylinder 10 and is fixedly connected with a sliding sheet on the sliding rheostat 14, low-boiling-point evaporation liquid is filled in the piston cylinder 10 between the heat conducting plug 11 and the piston 19, one end of the other friction plate 6 far away from the elevator protective housing 2 is fixedly connected with a memory metal rod 7, the memory metal rod 7 penetrates through the elevator body 3, a plurality of connecting plates 8 are fixedly connected to the inner wall of the elevator body 3 in the circumferential direction by taking the memory metal rod 7 as a circle center, and a conducting ring 9 is fixedly connected to one end of each connecting plate 8;
the bottom of the elevator body 3 is fixedly connected with a magnetic block 4, an electromagnet 18 is fixedly installed at the inner bottom of the protection foundation pit 1, the electromagnet 18 comprises an iron core and a conductive winding wound on the iron core, shielding plates 17 are symmetrically arranged inside the elevator protection housing 2 between the elevator body 3 and the electromagnet 18, sliding chutes in sliding fit with the shielding plates 17 are jointly formed in the elevator protection housing 2 and the inner wall of the protection foundation pit 1, a horizontally-arranged storage box 15 is installed at the corresponding position of the sliding chutes of the protection foundation pit 1, an electric telescopic rod 16 is fixedly installed on the inner wall of the storage box 15, and the telescopic end of the electric telescopic rod 16 is fixedly connected with the shielding plates 17;
the conductive winding, the electric telescopic rod 16, the conductive ring 9, the memory metal rod 7 and the slide rheostat 14 are connected with an external power supply through leads to form a forced landing circuit, and the electric telescopic rod 16 is connected with an external secondary power supply and a manual switch through leads to form a reset circuit.
Further, the friction plate 6 is of an automobile spoiler structure, the bending surface of the friction plate 6 is close to the fixed friction strip 5, the friction plate 6 is made of elastic materials, and the friction plate 6 with elastic performance can be bent when being forced to fall, so that the situation of fracture cannot occur.
Further, the piston cylinder 10 is made of heat insulating material, heat is completely sealed in the piston cylinder 10, the heat conducting plug 11 is fixedly connected with the inner wall of the piston cylinder 10, and the piston 19 is in sliding fit with the inner wall of the piston cylinder 10.
Further, the connecting plate 8 is made of an insulating material, so that the connecting plate 8 is prevented from influencing the normal contact between the memory metal rod 7 and the conducting ring 9, and the forced landing circuit is communicated.
It is worth noting that:
1. as shown in fig. 4, the current direction in the conductive winding of the electromagnet 18 is clockwise (viewed from above), the upper and lower ends of the electromagnet 18 are determined to be S, N poles according to the right-hand screw rule, meanwhile, one end of the magnetic block 4 close to the electromagnet 18 is an S pole, and like magnetic poles of the electromagnet 18 and the magnetic block 4 are arranged in a manner of repelling each other;
2. the memory metal rod 7 is in a cylindrical state without contacting with the conducting ring 9 at low temperature, and the memory metal rod 7 is in a bent state with contacting with the conducting ring 9 when heated to reach phase-change temperature.
In the invention, in the normal operation process of an elevator body 3 in an elevator protective housing 2, the operation speed of the elevator body 3 is constant and is low, two friction plates 6 are kept in a state of having gaps with fixed friction strips 5, low-boiling-point evaporation liquid is in a liquid state, an electric telescopic rod 16 is in an extension state, two shielding plates 17 completely block a protective foundation pit 1 in the elevator protective housing 2, and the shielding plates 17 separate a magnetic block 4 from an electromagnet 18, so that the situation that the magnetic block 4 adsorbs an iron core of the electromagnet 18 which is not electrified, electric energy is wasted and the installation part of the electromagnet 18 is loosened in a normal state is avoided.
In the invention, once the elevator body 3 falls, the descending speed of the elevator body 3 is accelerated, the friction plate 6 with the automobile spoiler structure is adopted, the air pressure of one side of the friction plate 6 far away from the fixed friction strip 5 is larger than the air pressure of one side of the friction plate 6 close to the fixed friction strip 5 according to the aerodynamic principle, so that the friction plate 6 is deformed to be in contact with the fixed friction strip 5 and is rubbed, the two friction plates 6 generate larger heat, one of the friction plates 6 is heated, is deformed to be in contact with the conducting ring 9 and is in a bending state, a forced descending circuit consisting of the conducting winding, the electric telescopic rod 16, the conducting ring 9, the memory metal rod 7 and the sliding rheostat 14 is switched on, the telescopic rod of the electric telescopic rod 16 retracts to enable the shielding plate 17 to be stored in the storage box 15, the electromagnet 18 is exposed and generates magnetism, in addition, the other friction plate 6 conducts the heat, the low boiling point evaporating liquid is heated and evaporated and drives the piston 19 to move towards the slide rheostat 14, and the piston 19 drives the slide sheet on the slide rheostat 14 to move through the transmission rod 13;
the faster the elevator body 3 falls, the more heat is generated by friction between the friction plate 6 and the fixed friction strip 5 and the more gas is generated by evaporation of low boiling point evaporated liquid, the resistance of the slide rheostat 14 is reduced by driving the slide sheet on the slide rheostat 14 to slide through the piston 19 and the transmission rod 13, and according to the principle that the resistance of the slide rheostat 14 is reduced
The larger the current flowing into the conductive winding is, the larger the magnetic force generated by the electromagnet 18 is, the larger the repulsive force between the electromagnet 18 and the magnetic block 4 is, so that the falling speed of the elevator body 3 is forced to fall until the speed is 0m/s, the magnetic block 4 falls onto the electromagnet 18, the temperature between the two friction plates 6 is gradually cooled, the temperature is reduced, the temperature of the memory metal rod 7 becomes lower and is restored to a state of not being in contact with the conductive ring 9, and the forced falling circuit is disconnected.
In the invention, after the elevator body 1 is forced to descend, the reset circuit can be communicated through the manual switch to enable the telescopic rod of the electric telescopic rod 16 to extend, and the shielding plate 17 is restored to the initial position and plugs the protection foundation pit 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A building construction elevator safety protection mechanism comprises a protection foundation pit (1), an elevator protection cover (2) and an elevator body (3), wherein the elevator protection cover (2) is vertically arranged on the inner wall of the protection foundation pit (1), the elevator body (3) is positioned in the elevator protection cover (2), the inner wall of the elevator protection cover (2) is fixedly connected with a vertically arranged fixed friction strip (5), the outer wall of the elevator body (3) is symmetrically and fixedly connected with friction plates (6) relative to the fixed friction strip (5), the building construction elevator safety protection mechanism is characterized in that the inner top of the elevator body (3) is fixedly connected with a piston cylinder (10) and a slide rheostat (14) at the corresponding position of one friction plate (6), a heat conducting plug (11) and a piston (19) are arranged in the piston cylinder (10), and a heat conducting rod (12) is fixedly connected at one end, far away from the elevator protection cover (2), of the one friction plate (6), one end of the heat conducting rod (12) far away from the friction plate (6) penetrates through the piston cylinder (10) and is fixedly connected with the heat conducting plug (11), a transmission rod (13) is fixedly connected to one side of the piston (19) far away from the heat conducting plug (11), one end of the transmission rod (13) far away from the piston (19) penetrates through the piston cylinder (10) and is fixedly connected with a slide sheet on the slide rheostat (14), low-boiling-point evaporation liquid is filled in the piston cylinder (10) between the heat conducting plug (11) and the piston (19), one end of the other friction plate (6) far away from the elevator protective housing (2) is fixedly connected with a memory metal rod (7), the memory metal rod (7) penetrates through the elevator body (3), a plurality of connecting plates (8) are fixedly connected to the inner wall of the elevator body (3) in the circumferential direction by taking the memory metal rod (7) as a circle center, and a conducting ring (9) is fixedly connected to one end, far away from the memory metal rod (7), of each connecting plate (8) together; the elevator protection structure is characterized in that a magnetic block (4) is fixedly connected to the bottom of the elevator body (3), an electromagnet (18) is fixedly mounted at the inner bottom of the protection foundation pit (1), the electromagnet (18) comprises an iron core and a conductive winding arranged on the iron core in a winding mode, a shielding plate (17) is symmetrically arranged inside the elevator protection housing (2) and located between the elevator body (3) and the electromagnet (18), a sliding chute in sliding fit with the shielding plate (17) is jointly formed in the inner wall of the elevator protection housing (2) and the protection foundation pit (1), a horizontally arranged storage box (15) is mounted at the corresponding position of the sliding chute in the protection foundation pit (1), an electric telescopic rod (16) is fixedly mounted on the inner wall of the storage box (15), and the telescopic end of the electric telescopic rod (16) is fixedly connected with the shielding plate (17; the electric conduction winding, the electric telescopic rod (16), the electric conduction ring (9), the memory metal rod (7) and the slide rheostat (14) are connected with an external power supply through leads to form a forced landing circuit, and the electric telescopic rod (16) is connected with an external secondary power supply and a manual switch through leads to form a reset circuit.
2. The safety protection mechanism of the building construction elevator is characterized in that the friction plate (6) is of an automobile spoiler structure, the curved surface of the friction plate (6) is arranged close to the fixed friction strip (5), and the friction plate (6) is made of an elastic material.
3. The safety protection mechanism of the building construction elevator is characterized in that the piston cylinder (10) is made of heat insulation materials, the heat conducting plug (11) is fixedly connected with the inner wall of the piston cylinder (10), and the piston (19) is in sliding fit with the inner wall of the piston cylinder (10).
4. The safety protection mechanism of the construction elevator as claimed in claim 1, wherein the connecting plate (8) is made of an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363886.0A CN109335915B (en) | 2018-11-16 | 2018-11-16 | Building construction elevator safety protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363886.0A CN109335915B (en) | 2018-11-16 | 2018-11-16 | Building construction elevator safety protection mechanism |
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| Publication Number | Publication Date |
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| CN109335915A CN109335915A (en) | 2019-02-15 |
| CN109335915B true CN109335915B (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811363886.0A Active CN109335915B (en) | 2018-11-16 | 2018-11-16 | Building construction elevator safety protection mechanism |
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| CN (1) | CN109335915B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626735A (en) * | 2019-10-09 | 2019-12-31 | 杭州隽珀科技有限公司 | Transportation equipment for mine track capable of preventing excessive wheel rotating speed through frictional heating |
| CN111466224B (en) * | 2020-05-18 | 2022-01-28 | 山东旭昇光电科技有限公司 | Circulation lift type plant light filling equipment |
| CN112551305B (en) * | 2020-12-03 | 2022-05-10 | 刘涛 | High-rise elevator operation safety protection system |
| CN112413019B (en) * | 2020-12-07 | 2022-05-10 | 刘涛 | Car elevator operation traction structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5231851B2 (en) * | 2008-04-03 | 2013-07-10 | 株式会社日立製作所 | Tail cord damping structure |
| CN202296662U (en) * | 2011-10-11 | 2012-07-04 | 通用电梯（中国）有限公司 | Elevator provided with electromagnetic damping device |
| CN102732322B (en) * | 2012-06-19 | 2014-01-08 | 东莞市百大新能源股份有限公司 | Anti-falling structure for hopper |
| CN106553947A (en) * | 2016-11-21 | 2017-04-05 | 宁波大学 | The fall protection equipment of elevator |
| CN106629289B (en) * | 2016-12-30 | 2019-06-14 | 海安县巨力磁材有限责任公司 | Fireproof elevator |
| CN108622762A (en) * | 2018-07-06 | 2018-10-09 | 苏州福特美福电梯有限公司 | A kind of elevator emergency brake device |
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2018
- 2018-11-16 CN CN201811363886.0A patent/CN109335915B/en active Active
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Effective date of registration: 20200513 Address after: 325002 Room 102, building 5, Dongbao community, Fudong Road, puxie street, Lucheng District, Wenzhou City, Zhejiang Province Applicant after: Chen Chenghao Address before: 310000 No. 148 Tianmu Mountain Road, Hangzhou, Zhejiang, Xihu District Applicant before: Shu Xuezhen |
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Effective date of registration: 20211206 Address after: Room 1604, building B, Xingzhi Science Park, No. 6, Xingzhi Road, Nanjing Economic and Technological Development Zone, Jiangsu 210000 Patentee after: Nanjing Fenghuo gongfeng Zhilian Technology Co.,Ltd. Address before: 325002 Room 102, building 5, Dongbao community, Fudong Road, puxie street, Lucheng District, Wenzhou City, Zhejiang Province Patentee before: Chen Chenghao |
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