CN117303157A - Elevator anti-falling device - Google Patents
Elevator anti-falling device Download PDFInfo
- Publication number
- CN117303157A CN117303157A CN202311589153.XA CN202311589153A CN117303157A CN 117303157 A CN117303157 A CN 117303157A CN 202311589153 A CN202311589153 A CN 202311589153A CN 117303157 A CN117303157 A CN 117303157A
- Authority
- CN
- China
- Prior art keywords
- mounting plate
- connecting rod
- control
- elevator
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- 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
- B66B5/26—Positively-acting devices, e.g. latches, knives
-
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
Abstract
The invention discloses an elevator anti-falling device, which relates to the technical field of elevator safety equipment and comprises an execution assembly, wherein the execution assembly comprises a mounting plate, two symmetrically arranged reinforcing frames are fixedly arranged at two ends of the mounting plate, and swing clamping plates are arranged on the outer side of each reinforcing frame and movably mounted on the mounting plate through clamping plate brackets. The elevator car is triggered by the air resistance when the elevator falls, and the elevator car is locked by utilizing the meshing relationship between the two swing clamping plates and the metal teeth; all the movable parts adopt an active movement mode, so long as the elevator runs, all the movable parts can move in a small amplitude, and the connection part is ensured not to be necrotized due to long-time non-working; the closed loop detection triggering mode is adopted, so that stable and reliable operation of the triggering assembly is ensured, and the arranged reinforcing frame can ensure that the swing joint plate stably supports the elevator car.
Description
Technical Field
The invention relates to the technical field of elevator safety equipment, in particular to an elevator anti-falling device.
Background
An elevator refers to a permanent transport device serving a number of specific floors within a building with its car running in at least two columns of rigid rails running perpendicular to the horizontal or inclined at an angle of less than 15 ° to the plumb line. Although elevators have been developed over the years and the safety has been high, although current elevators have a variety of fall protection mechanisms, this is based on rational maintenance, and once there is no rational maintenance, the probability of failure of the protection mechanism increases, so that an elevator fall event occurs every year.
In the prior art, the invention patent with publication number CN113104693a uses a fall-preventing elevator, and although the fall-preventing purpose can be reliably achieved, the safety and the automation degree of the whole elevator are higher, but maintenance is still needed, so that the technical problems are not perfectly solved.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the following technical scheme: the elevator anti-falling device comprises an executing assembly, wherein the executing assembly comprises a mounting plate, two symmetrically arranged reinforcing frames are fixedly arranged at two ends of the mounting plate, swing joint plates are arranged on the outer side of each reinforcing frame and movably arranged on the mounting plate through joint plate brackets, two symmetrically arranged triggering electromagnets are fixedly arranged on the mounting plate, a push-pull rod is slidably arranged on each triggering electromagnet, the two push-pull rods are movably connected with the two swing joint plates through corresponding supporting connecting rods respectively, the push-pull rods are in sliding fit with the mounting plate through push-pull rod brackets, and permanent magnets are fixedly arranged on the push-pull rods; the detection part comprises a control electromagnet fixedly arranged on the mounting plate through a control electromagnet bracket, a control sliding rod is slidably arranged in the middle of the control electromagnet, a control braking contact is fixedly arranged at the bottom end of the control sliding rod, a control spring is fixedly arranged between the control moving contact and the control electromagnet bracket, and a control static contact matched with the control moving contact in a contact manner is fixedly arranged on the mounting plate; the lower surface fixed mounting of mounting panel has the trigger subassembly, the trigger subassembly includes sliding sleeve, sliding sleeve's inner wall fixed mounting has the fixed disk, two through-holes have been seted up to the symmetry on the fixed disk, the through-hole department rotates and installs the roll portion, every through-hole department is provided with two sets of roll portions, two sets of roll portions distribute the upper and lower surface at the fixed disk, every roll portion of group comprises three centering roller group, every fixed disk department still fixed mounting is by the thimble support, the perpendicular slide bar of rolling between the three centering roller, the bottom fixed mounting of perpendicular slide bar has the floating disc, the top fixed mounting of perpendicular slide bar has the limiting plate, the upper surface fixed mounting at the thimble support has three thimble with limiting plate lower surface contact complex.
Preferably, the swing joint plate is in running fit with a joint plate bracket, the joint plate bracket is fixedly connected with the mounting plate, and the swing joint plate is in contact fit with the reinforcing frame.
Preferably, the permanent magnet is in magnetic attraction fit with the triggering electromagnet, a dust cover is arranged on the mounting plate, and two openings are symmetrically formed in the dust cover.
Preferably, the control spring is arranged on the outer side of the control sliding rod in a surrounding mode, the piezoresistor is fixedly mounted on the mounting plate, and the balancing weight is fixedly mounted on the piezoresistor through glue.
Preferably, the sliding sleeve is provided with a ventilation opening, and the ventilation opening is also used for reducing friction resistance between the floating disc and the sliding sleeve.
Preferably, the contact position of the ejector pin and the limiting plate adopts a round chamfer to reduce the contact area of the limiting plate and the ejector pin.
Preferably, the floating disc is movably provided with a second connecting rod and a fourth connecting rod, the fixed disc is movably provided with a first connecting rod and a third connecting rod, the second connecting rod is movably connected with the first connecting rod, the third connecting rod is movably connected with the fourth connecting rod, and enamelled wires are fixedly arranged between the connection part of the first connecting rod and the second connecting rod and the connection part of the third connecting rod and the fourth connecting rod.
Preferably, the enameled wires are arranged in an arc shape, the two limiting plates are fixedly provided with supporting rods, the two supporting rods are fixedly provided with lug sliding frames, the lug sliding frames are in sliding fit with one ends of the two push-pull rods, which are far away from the supporting connecting rods, and the mounting plate is fixedly provided with a storage battery.
Compared with the prior art, the invention has the following beneficial effects: (1) The elevator car is triggered by the air resistance when the elevator falls, and the elevator car is locked by utilizing the meshing relationship between the two swing clamping plates and the metal teeth; (2) According to the invention, each movable part adopts an active movement mode, so long as the elevator runs, each movable part can move in a small amplitude, and the connection part is ensured not to be necrotized due to long-time non-working; (3) The invention adopts a closed-loop detection triggering mode, ensures the stable and reliable operation of the triggering component, and the arranged reinforcing frame can ensure the swing joint plate to stably support the elevator car.
Drawings
Fig. 1 is a schematic view of a dust cap according to the present invention.
Fig. 2 is a schematic diagram of the overall structure of the present invention.
FIG. 3 is a schematic diagram of the structure of FIG. 2A according to the present invention.
Fig. 4 is a schematic diagram of the structure of fig. 2B according to the present invention.
Fig. 5 is a schematic view of the structure of the trigger electromagnet of the present invention.
Fig. 6 is a view showing the mounting position of the battery according to the present invention.
FIG. 7 is a schematic diagram of a trigger assembly according to the present invention.
FIG. 8 is a schematic view of the structure of the thimble of the present invention.
Fig. 9 is a schematic view of the structure of the enameled wire of the invention.
Fig. 10 is a schematic view of a side-mounted metal tooth structure of an elevator hoistway of the present invention.
Fig. 11 is a circuit diagram showing the connection of the enamel wire according to the present invention.
In the figure: 101-mounting plates; 102-a dust cover; 1021-opening; 103-a reinforcing frame; 104-swinging the clamping plate; 105-clamping plate brackets; 106-supporting the connecting rod; 107-triggering an electromagnet; 108-a push-pull rod; 109-permanent magnets; 110-a push-pull rod bracket; 111-bump carriages; 112-supporting rods; 201-balancing weight; 202-piezoresistor; 203-controlling an electromagnet; 204-controlling an electromagnet support; 205-control slide bar; 206-control spring; 207-control moving contact; 208-control stationary contact; 209-enameled wire; 301-sliding sleeve; 302-a fixed disk; 303-floating disc; 304-vertical sliding bar; 305-limiting plates; 306-thimble; 307-thimble support; 308-centering rollers; 309-a first link; 310-a second link; 311-a third link; 312-fourth link; 4-accumulator.
Detailed Description
The technical scheme of the invention is further described below by means of specific embodiments with reference to fig. 1-11.
The invention provides an elevator anti-falling device, which comprises an execution assembly, wherein the execution assembly comprises a mounting plate 101, two symmetrically arranged reinforcing frames 103 are fixedly arranged at two ends of the mounting plate 101, swing joint plates 104 are arranged on the outer sides of the reinforcing frames 103 respectively, the swing joint plates 104 are movably arranged on the mounting plate 101 through joint plate brackets 105, two symmetrically arranged triggering electromagnets 107 are fixedly arranged on the mounting plate 101, a push-pull rod 108 is slidably arranged on each triggering electromagnet 107, the two push-pull rods 108 are movably connected with the two swing joint plates 104 through corresponding support connecting rods 106 respectively, the push-pull rods 108 are slidably matched with the mounting plate 101 through push-pull rod brackets 110, and permanent magnets 109 are fixedly arranged on the push-pull rods 108. The swing joint plate 104 is in running fit with the joint plate bracket 105, the joint plate bracket 105 is fixedly connected with the mounting plate 101, and the swing joint plate 104 is in contact fit with the reinforcing frame 103. The permanent magnet 109 is magnetically attracted to the triggering electromagnet 107, the mounting plate 101 is provided with a dust cover 102, and two opening 1021 are symmetrically arranged on the dust cover 102.
The detection part is fixedly arranged on the mounting plate 101 and comprises a control electromagnet 203 fixedly arranged on the mounting plate 101 through a control electromagnet bracket 204, a control slide rod 205 is slidably arranged in the middle of the control electromagnet 203, a control braking contact 207 is fixedly arranged at the bottom end of the control slide rod 205, a control spring 206 is fixedly arranged between the control moving contact 207 and the control electromagnet bracket 204, and a control fixed contact 208 in contact fit with the control moving contact 207 is fixedly arranged on the mounting plate 101. The control spring 206 is arranged on the outer side of the control slide rod 205 in a surrounding mode, the piezoresistor 202 is fixedly arranged on the mounting plate 101, and the balancing weight 201 is fixedly arranged on the piezoresistor 202 through glue.
The lower surface of mounting panel 101 is fixedly installed and is triggered the subassembly, trigger the subassembly and include sliding sleeve 301, sliding sleeve 301's inner wall fixed mounting has fixed disk 302, two through-holes have been seted up to the symmetry on the fixed disk 302, through-hole department rotates and installs the roll portion, every through-hole department is provided with two sets of roll portions, two sets of roll portions distribute the upper and lower surface of fixed disk 302, every set of roll portion comprises three centering running roller 308, every fixed disk 302 department still fixed mounting is by thimble support 307, install vertical sliding rod 304 between the three centering running roller 308 in the roll, the bottom fixed mounting of vertical sliding rod 304 has floating disc 303, the top fixed mounting of vertical sliding rod 304 has limiting plate 305, the upper surface fixed mounting at thimble support 307 has three thimble 306 with limiting plate 305 lower surface contact complex. The sliding sleeve 301 is provided with ventilation openings which also serve to reduce the frictional resistance between the floating disc 303 and the sliding sleeve 301. The contact position of the ejector pin 306 and the limiting plate 305 adopts a round chamfer to reduce the contact area of the limiting plate 305 and the ejector pin 306. The floating disc 303 is movably provided with a second connecting rod 310 and a fourth connecting rod 312, the fixed disc 302 is movably provided with a first connecting rod 309 and a third connecting rod 311, the second connecting rod 310 is movably connected with the first connecting rod 309, the third connecting rod 311 is movably connected with the fourth connecting rod 312, and an enameled wire 209 is fixedly arranged between the connection part of the first connecting rod 309 and the second connecting rod 310 and the connection part of the third connecting rod 311 and the fourth connecting rod 312.
The enameled wires 209 are arranged in an arc shape, the two limiting plates 305 are fixedly provided with the supporting rods 112, the two supporting rods 112 are fixedly provided with the lug sliding frames 111, the lug sliding frames 111 are in sliding fit with one ends of the two push-pull rods 108 far away from the supporting connecting rods 106, and the mounting plate 101 is fixedly provided with the storage battery 4.
The using method comprises the following steps: the device is first installed on the bottom of a conventional car and then metal teeth (mating with two swing clamping plates 104) as shown in fig. 10 are installed on the inner wall of the hoistway.
The working process comprises the following steps: when all safety measures of the traditional elevator fail, the elevator car can fall down quickly, at the moment, the resistance of air can push the floating disc 303 to move upwards relative to the sliding sleeve 301, the distance between the floating disc 303 and the fixed disc 302 is reduced, so that the first connecting rod 309, the second connecting rod 310, the third connecting rod 311 and the fourth connecting rod 312 are relatively movable (in the process of normal downward movement of the elevator car, the movable range is smaller, the problems that all movable parts of the device are dead due to long-time non-working rust or dust is blocked can be prevented), when the distance between the fixed disc 302 and the floating disc 303 is too small, the enameled wire 209 can be pulled off, as shown in fig. 9 and 11, the control electromagnet 203 is lost (the control electromagnet 203 and the enameled wire 209 are connected in series in a direct current power supply, and diodes are also connected in series for unidirectional flow of electrons), at the moment, the control electromagnet 203 is lost, at the moment, the control electromagnet 203 is also lost in magnetism, the movable contact 207 is relatively movable, the movable range is only, the movable range is small, the movable range is can be prevented, the movable contact point 208 is kept off, the control electromagnet 203 is kept in contact, the static contact, under the action of the control sliding rod 205, the movable contact is kept in contact with the static contact, the control electromagnet 208 is separated from the static contact, the control electromagnet 208 is contacted with the control electromagnet 208, the control electromagnet 208 is triggered by the contact, the contact is triggered by the contact, and the swing electromagnet 107, the swing electromagnet is triggered by the swing contact device, and the trigger device, and the swing electromagnet 107, and the swing contact device is triggered by the trigger contact device, and the swing electromagnet 107, and the swing contact device is triggered by the swing contact device, and the trigger device 107, and the swing electromagnet 107, and the swing contact 107, and the trigger contact device is triggered by the swing contact 107, and when is triggered by the swing contacts and when the swing mechanism and when the swing device and when the contact 107 is triggered when and when the swing. Then the metal teeth on the inner wall of the elevator shaft are meshed, so that the elevator shaft is blocked, and meanwhile, the reinforcing frame 103 can support the swing clamping plate 104, and the auxiliary supporting function is started. Meanwhile, in order to ensure the sensitivity of detection, in the falling process of the elevator, the balancing weight 201 is in a weightless state, the resistance of the piezoresistor 202 is increased from the heat, whether the elevator is in a free falling state can be judged by detecting the resistance change of the piezoresistor 202, and whether the starting triggering electromagnet 107 is connected is selected by judging the system processing. Meanwhile, direct-current voltage (a diode, an ammeter and a load resistor are connected in series) can be applied to two ends of the enameled wire 209 to detect whether the enameled wire 209 is disconnected or not, so that false triggering caused by power damage of the power supply of the control electromagnet 203 is avoided (the triggering electromagnet 107 can be started only when the inductance ammeter is in a normal working state, or the triggering electromagnet 107 can be started when the resistance of the piezoresistor 202 is increased).
Claims (8)
1. An elevator anti-falling device which is characterized in that: the device comprises an execution assembly, wherein the execution assembly comprises a mounting plate (101), two symmetrically arranged reinforcing frames (103) are fixedly arranged at two ends of the mounting plate (101), swing clamping plates (104) are arranged on the outer sides of each reinforcing frame (103), the swing clamping plates (104) are movably arranged on the mounting plate (101) through clamping plate supports (105), two symmetrically arranged triggering electromagnets (107) are fixedly arranged on the mounting plate (101), push-pull rods (108) are slidably arranged on each triggering electromagnet (107), the two push-pull rods (108) are movably connected with the two swing clamping plates (104) through corresponding supporting connecting rods (106), the push-pull rods (108) are in sliding fit with the mounting plate (101) through the push-pull rod supports (110), and permanent magnets (109) are fixedly arranged on the push-pull rods (108);
the detection part is fixedly arranged on the mounting plate (101), the detection part comprises a control electromagnet (203) fixedly arranged on the mounting plate (101) through a control electromagnet bracket (204), a control sliding rod (205) is slidably arranged in the middle of the control electromagnet (203), a control braking contact (207) is fixedly arranged at the bottom end of the control sliding rod (205), a control spring (206) is fixedly arranged between the control braking contact (207) and the control electromagnet bracket (204), and a control fixed contact (208) in contact fit with the control braking contact (207) is fixedly arranged on the mounting plate (101);
the lower surface fixed mounting of mounting panel (101) has the trigger subassembly, the trigger subassembly includes sliding sleeve (301), sliding sleeve (301)'s inner wall fixed mounting has fixed disk (302), two through-holes have been seted up to the symmetry on fixed disk (302), through-hole department rotates and installs rolling part, every through-hole department is provided with two sets of rolling parts, two sets of rolling parts distribute the upper and lower surface at fixed disk (302), every rolling part of group comprises three centering running roller (308), every fixed disk (302) department still fixed mounting is by thimble support (307), install perpendicular slide bar (304) between three centering running roller (308) roll, floating disk (303) are installed to the bottom fixed mounting of perpendicular slide bar (304), limiting plate (305) are installed to the top fixed mounting of perpendicular slide bar (304), top fixed mounting at thimble support (307) have three thimble (306) with limiting plate (305) lower surface contact complex.
2. An elevator fall arrest device according to claim 1, characterized in that: the swing joint plate (104) is in rotary fit with the joint plate bracket (105), the joint plate bracket (105) is fixedly connected with the mounting plate (101), and the swing joint plate (104) is in contact fit with the reinforcing frame (103).
3. An elevator fall arrest device according to claim 2, characterized in that: the permanent magnet (109) is in magnetic attraction fit with the triggering electromagnet (107), a dust cover (102) is arranged on the mounting plate (101), and two opening ports (1021) are symmetrically formed in the dust cover (102).
4. An elevator fall arrest device according to claim 3, wherein: the control spring (206) is arranged on the outer side of the control sliding rod (205) in a surrounding mode, the piezoresistor (202) is fixedly installed on the mounting plate (101), and the balancing weight (201) is fixedly installed on the piezoresistor (202) through glue.
5. The elevator fall protection device of claim 4, wherein: the sliding sleeve (301) is provided with a ventilation opening which is also used for reducing the friction resistance between the floating disc (303) and the sliding sleeve (301).
6. The elevator fall protection device of claim 5, wherein: the contact position of the ejector pin (306) and the limiting plate (305) adopts a round chamfer to reduce the contact area of the limiting plate (305) and the ejector pin (306).
7. The elevator fall protection device of claim 6, wherein: the floating disc (303) is movably provided with a second connecting rod (310) and a fourth connecting rod (312), the fixed disc (302) is movably provided with a first connecting rod (309) and a third connecting rod (311), the second connecting rod (310) is movably connected with the first connecting rod (309), the third connecting rod (311) is movably connected with the fourth connecting rod (312), and enamelled wires (209) are fixedly arranged between the connecting part of the first connecting rod (309) and the second connecting rod (310) and the connecting part of the third connecting rod (311) and the fourth connecting rod (312).
8. The elevator fall protection device of claim 7, wherein: the enameled wires (209) are arranged in an arc shape, the two limiting plates (305) are fixedly provided with supporting rods (112), the two supporting rods (112) are fixedly provided with lug sliding frames (111), the lug sliding frames (111) are in sliding fit with one ends of the two push-pull rods (108) far away from the supporting connecting rods (106), and the mounting plate (101) is fixedly provided with a storage battery (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311589153.XA CN117303157A (en) | 2023-11-27 | 2023-11-27 | Elevator anti-falling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311589153.XA CN117303157A (en) | 2023-11-27 | 2023-11-27 | Elevator anti-falling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117303157A true CN117303157A (en) | 2023-12-29 |
Family
ID=89255529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311589153.XA Pending CN117303157A (en) | 2023-11-27 | 2023-11-27 | Elevator anti-falling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117303157A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR379049A (en) * | 1907-03-26 | 1907-10-23 | Daniel Fouse Greaser | Safety device for elevators |
| CN1815663A (en) * | 2005-07-15 | 2006-08-09 | 希珂尔电气有限公司 | Intelligent earth-fault circuit breaker |
| WO2010107408A1 (en) * | 2009-03-16 | 2010-09-23 | Otis Elevator Company | Electromagnetic safety trigger |
| DE102013111385A1 (en) * | 2013-10-15 | 2015-04-16 | Manfred Lienemann | Tripping device of a safety gear for an elevator car of an elevator installation |
| CN107200252A (en) * | 2017-08-01 | 2017-09-26 | 南昌大学 | One kind braking disc type used during elevator falling, which slows down, stops falling unit |
| CN108675082A (en) * | 2018-08-09 | 2018-10-19 | 河南沪江电缆有限公司 | Construction material vertical transport fall protection equipment |
| CN112520532A (en) * | 2021-01-14 | 2021-03-19 | 成都藤冲绯电子商务有限公司 | Elevator falling prevention device |
| CN112777441A (en) * | 2020-12-24 | 2021-05-11 | 秦皇岛开发区前景光电技术有限公司 | Earthquake monitoring equipment, device and method for protecting safety of elevator |
| CN113400190A (en) * | 2021-06-25 | 2021-09-17 | 上海旌呈机械设备研发中心 | Multi-angle grinding device is used in production of valve sealing face |
| CN113770785A (en) * | 2021-08-16 | 2021-12-10 | 上海几蕴检测工程有限公司 | Stall protection device based on building cutting machine |
| CN215207923U (en) * | 2021-01-18 | 2021-12-17 | 淮安东正检测有限公司 | Anti-falling device of construction elevator |
| CN114348282A (en) * | 2021-12-29 | 2022-04-15 | 徐州卓华信息科技有限公司 | Small aircraft abnormal falling protection device |
| CN216426414U (en) * | 2021-11-04 | 2022-05-03 | 广东安亿安装工程有限公司 | Elevator anti-falling device |
| US20220356044A1 (en) * | 2019-12-17 | 2022-11-10 | Inventio Ag | Safety brake for an elevator |
| CN117003086A (en) * | 2023-09-07 | 2023-11-07 | 奥特朗博电梯有限公司 | Elevator capable of preventing internal opening |
-
2023
- 2023-11-27 CN CN202311589153.XA patent/CN117303157A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR379049A (en) * | 1907-03-26 | 1907-10-23 | Daniel Fouse Greaser | Safety device for elevators |
| CN1815663A (en) * | 2005-07-15 | 2006-08-09 | 希珂尔电气有限公司 | Intelligent earth-fault circuit breaker |
| WO2010107408A1 (en) * | 2009-03-16 | 2010-09-23 | Otis Elevator Company | Electromagnetic safety trigger |
| DE102013111385A1 (en) * | 2013-10-15 | 2015-04-16 | Manfred Lienemann | Tripping device of a safety gear for an elevator car of an elevator installation |
| CN107200252A (en) * | 2017-08-01 | 2017-09-26 | 南昌大学 | One kind braking disc type used during elevator falling, which slows down, stops falling unit |
| CN108675082A (en) * | 2018-08-09 | 2018-10-19 | 河南沪江电缆有限公司 | Construction material vertical transport fall protection equipment |
| US20220356044A1 (en) * | 2019-12-17 | 2022-11-10 | Inventio Ag | Safety brake for an elevator |
| CN112777441A (en) * | 2020-12-24 | 2021-05-11 | 秦皇岛开发区前景光电技术有限公司 | Earthquake monitoring equipment, device and method for protecting safety of elevator |
| CN112520532A (en) * | 2021-01-14 | 2021-03-19 | 成都藤冲绯电子商务有限公司 | Elevator falling prevention device |
| CN215207923U (en) * | 2021-01-18 | 2021-12-17 | 淮安东正检测有限公司 | Anti-falling device of construction elevator |
| CN113400190A (en) * | 2021-06-25 | 2021-09-17 | 上海旌呈机械设备研发中心 | Multi-angle grinding device is used in production of valve sealing face |
| CN113770785A (en) * | 2021-08-16 | 2021-12-10 | 上海几蕴检测工程有限公司 | Stall protection device based on building cutting machine |
| CN216426414U (en) * | 2021-11-04 | 2022-05-03 | 广东安亿安装工程有限公司 | Elevator anti-falling device |
| CN114348282A (en) * | 2021-12-29 | 2022-04-15 | 徐州卓华信息科技有限公司 | Small aircraft abnormal falling protection device |
| CN117003086A (en) * | 2023-09-07 | 2023-11-07 | 奥特朗博电梯有限公司 | Elevator capable of preventing internal opening |
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