CN114506758A - Automatic anti-falling prevention device for elevator car - Google Patents
Automatic anti-falling prevention device for elevator car Download PDFInfo
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- CN114506758A CN114506758A CN202210188409.5A CN202210188409A CN114506758A CN 114506758 A CN114506758 A CN 114506758A CN 202210188409 A CN202210188409 A CN 202210188409A CN 114506758 A CN114506758 A CN 114506758A
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- caliper
- brake shoe
- elevator car
- brake
- automatic anti
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- 230000002265 prevention Effects 0.000 title claims abstract description 19
- 210000001503 joint Anatomy 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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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
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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
- B66B5/22—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 by means of linearly-movable wedges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses an automatic anti-falling prevention device for an elevator car, which comprises a fixed base, a first caliper and a second caliper, wherein the first caliper is movably arranged on the outer surface of the upper end of the fixed base; by means of the arrangement of the first brake shoe and the second brake shoe, the automatic anti-falling prevention device for the elevator car has a multi-braking structure, and safety of the device in use is improved.
Description
Technical Field
The invention belongs to the technical field of elevator safety equipment, and particularly relates to an automatic anti-falling prevention device for an elevator car.
Background
The elevator car automatic anti-falling preventing device is an important safety device of an elevator, the safety and the reliability of the device are one of important factors for ensuring the safe operation of the elevator, a bidirectional thrust elevator brake generates bidirectional electromagnetic thrust when being electrified, so that a brake mechanism is separated from a motor rotating part, the electromagnetic force disappears when the power is off, and under the action of the pressure of an externally added brake spring, the friction type brake of the power-off brake is formed.
Patent document CN205634533U discloses an elevator braking device, comprising: the brake wedge block comprises a plurality of stages of working surfaces which are in contact with the guide rail, the plurality of stages of working surfaces form a step-shaped structure and are arranged step by step along a first direction parallel to the extending direction of the guide rail, and the distance between each working surface and the corresponding guide rail is increased step by step in the first direction; the lifting device is used for driving the braking wedge block to move along the guide rail in a second direction opposite to the first direction; the guide brake device is used for applying pressure to the brake wedge block so as to press the working surface of the brake wedge block on the guide rail.
The traditional automatic anti-falling device for the elevator car has certain disadvantages in the use process, the traditional automatic anti-falling device for the elevator car does not have a multiple-brake structure, and the traditional automatic anti-falling device for the elevator car adopts a single caliper type brake structure design, so that the safety of the automatic anti-falling device for the elevator car in use is reduced; secondly, the traditional automatic anti-falling prevention device for the elevator car does not have a splicing type combined fixed structure, when the caliper structure of the automatic anti-falling prevention device for the elevator car is worn, the parts of the automatic anti-falling prevention device for the elevator car cannot be maintained and replaced in time, the using effect of the traditional automatic anti-falling prevention device for the elevator car is reduced, and certain adverse effects are brought to users.
Disclosure of Invention
In order to overcome the defect that the traditional automatic anti-falling prevention device for the elevator car does not have a multiple-braking structure, the traditional automatic anti-falling prevention device for the elevator car adopts a single-caliper type braking structure design, so that the safety of the automatic anti-falling prevention device for the elevator car in use is reduced, when a single caliper is damaged, the traditional automatic anti-falling prevention device for the elevator car cannot complete the braking operation of the elevator in time, and the safety of the automatic anti-falling prevention device for the elevator car in use is reduced; secondly, the traditional automatic anti-falling device for the elevator car does not have a splicing type combined fixing structure, when a caliper structure of the automatic anti-falling device for the elevator car is worn, parts of the automatic anti-falling device for the elevator car cannot be maintained and replaced in time, the using effect of the traditional automatic anti-falling device for the elevator car is reduced, and the automatic anti-falling device for the elevator car is provided.
The purpose of the invention can be realized by the following technical scheme:
an automatic anti-falling prevention device for an elevator car comprises a fixed base, a first caliper and a second caliper, wherein the first caliper is movably mounted on the outer surface of the upper end of the fixed base, the second caliper is movably mounted on one side, close to the first caliper, of the outer surface of the upper end of the fixed base, a first brake shoe is movably mounted on the outer surface of the side edge of the second caliper and the outer surface of the side edge of the first caliper, a second brake shoe is movably mounted on one side, close to the first brake shoe, of the outer surface of the side edge of the second caliper and the outer surface of the side edge of the first caliper, brake pads are fixedly sleeved on the upper portions of the first brake shoe and the second brake shoe, a combined clamping strip is fixedly mounted in the middle of the lower end of each brake pad, splicing clamping grooves are formed in the inner sides of the upper ends of the first brake shoe and the second brake shoe, and the combined clamping strips are fixedly butted through the splicing clamping grooves, the outer surface of the upper end of the brake pad is provided with a plurality of groups of chutes.
As a further technical scheme of the invention, the middle positions of the lower ends of the first brake shoe and the second brake shoe are fixedly provided with butt-joint rings, and the inner sides of the first brake shoe, the second brake shoe and the combined clamping strip are provided with circular through holes in a penetrating way.
As a further technical scheme, a brake wheel is movably mounted at the upper end of the fixed base between the second caliper and the first caliper, the second caliper, the first caliper and the fixed base are movably connected through a butt joint rotating shaft, connecting grooves are formed in the inner sides of one ends of the second caliper and the first caliper in a penetrating mode, and shaft sleeves are fixedly sleeved on the inner sides of the other ends of the second caliper and the first caliper.
As a further technical scheme of the invention, the outer surfaces of the side edges of the second caliper and the first caliper are both arc-shaped structures, and an elastic clamping seat is movably arranged at the upper part between the second caliper and the first caliper.
As a further technical scheme of the invention, the middle positions of the outer surfaces of the two ends of the elastic clamping seat are fixedly provided with connecting rods, the second caliper, the first caliper and the elastic clamping seat are connected through the connecting rods, the outer surface of the side edge of each connecting rod is movably sleeved with a spring column, the outer surface of the side edge of each connecting rod, close to one end of the spring column, is movably provided with a movable baffle disc, the outer surface of one end of each connecting rod is fixedly sleeved with a fixing cap, and the connecting rods and the fixing caps are in butt joint through threads.
As a further technical scheme of the invention, the upper part of the elastic clamping seat is provided with a magnetic device, the outer surface of the upper end of the elastic clamping seat is fixedly provided with two groups of arc-shaped clamping seats, and the outer surface of the upper part of each arc-shaped clamping seat is of an arc-shaped structure.
As a further technical scheme of the invention, the outer surfaces of the top ends of the second caliper and the first caliper are both fixedly provided with a fixed clamping seat, and the outer surface of the side edge of the fixed clamping seat is of an inclined plane structure.
The invention has the beneficial effects that:
1. through arranging the first brake shoe and the second brake shoe, when the automatic anti-falling prevention device for the elevator car is used, the first brake shoe and the second brake shoe are simultaneously arranged on the first caliper and the second caliper, so that the first caliper and the second caliper are provided with double brake structures, in the running process of the elevator, the brake wheel synchronously rotates along with the transmission structure of the elevator, the motor drives the rotating wheel to rotate, the brake wheel synchronously rotates, when the elevator has an emergency falling phenomenon, the first caliper and the second caliper are pulled to rotate by matching the butt joint rotating shaft of the first caliper and the second caliper through the magnetic force device, so that the first caliper and the second caliper are inwards inclined, the first brake shoe and the second brake shoe on the first caliper and the second caliper are simultaneously clamped at the side position of the brake wheel, and the butt joint ring of the first brake shoe and the second brake shoe is utilized, make first brake shoe and second brake shoe can do certain slope regulation, thereby make first brake shoe and second brake shoe hug closely the side of braked wheel, secondly utilize a plurality of groups chute on first brake shoe and the second brake shoe, can increase first brake shoe, frictional force between second brake shoe and the braked wheel, make the chucking operation of first brake shoe and second brake shoe more firm, utilize the setting of first brake shoe and second brake shoe, make this automatic arrester of preventing falling of elevator car have multiple braking structure, safety when promoting its use.
2. Through setting up braking piece and combination card strip, prevent falling the arrester use in this elevator car is automatic, the user can take out the gim peg from circular through-hole, upwards stimulate the braking piece on first brake shoe and the second brake shoe, make the combination card strip of braking piece take out from the concatenation draw-in groove of first brake shoe and second brake shoe, make separation between braking piece and first brake shoe and the second brake shoe, when wearing and tearing phenomenon appears in the braking piece, the user can be through the combination formula fixed knot structure that combination card strip and concatenation draw-in groove formed, make the change operation of braking piece more convenient on first brake shoe and the second brake shoe, high durability and convenient use.
Drawings
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of an automatic fall-preventing device for an elevator car according to the present invention;
FIG. 2 is an overall view of a second caliper in the automatic falling prevention apparatus for an elevator car according to the present invention;
fig. 3 is an overall structural view of a first brake shoe in the automatic falling prevention apparatus for an elevator car according to the present invention;
fig. 4 is an overall structure view of an elastic clamping seat in the automatic anti-falling device of the elevator car.
In the figure: 1. a fixed base; 2. butting the rotating shafts; 3. a first caliper; 4. a first brake shoe; 5. a second brake shoe; 6. a connecting rod; 7. fixing the card holder; 8. a magnetic device; 9. an elastic clamping seat; 10. a brake wheel; 11. a second caliper; 12. a shaft sleeve; 13. a brake pad; 14. connecting grooves; 15. a docking ring; 16. a circular through hole; 17. combining the clamping strips; 18. a chute; 19. splicing the clamping grooves; 20. a spring post; 21. moving the catch tray; 22. a fixing cap; 23. an arc-shaped clamping seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, an automatic anti-falling device for an elevator car comprises a fixed base 1, a first caliper 3 and a second caliper 11, wherein the first caliper 3 is movably installed on the outer surface of the upper end of the fixed base 1, the second caliper 11 is movably installed on one side of the outer surface of the upper end of the fixed base 1 close to the first caliper 3, the outer surfaces of the side edges of the second caliper 11 and the first caliper 3 are movably installed with a first brake shoe 4, the outer surfaces of the side edges of the second caliper 11 and the first caliper 3 close to the first brake shoe 4 are movably installed with a second brake shoe 5, the upper parts of the first brake shoe 4 and the second brake shoe 5 are fixedly sleeved with a brake pad 13, the middle position of the lower end of the brake pad 13 is fixedly provided with a combined clamping strip 17, the inner sides of the upper ends of the first brake shoe 4 and the second brake shoe 5 are both provided with a splicing clamping groove 19, the installation of the combined clamping strip 17 can be butt-jointed and fixed by the splicing clamping groove 19, the first brake shoe 4, the second brake shoe 5 and the combined clamping strip 17 are fixedly butted through a splicing clamping groove 19, and a plurality of groups of inclined grooves 18 are formed in the outer surface of the upper end of the brake pad 13.
The middle positions of the lower ends of the first brake shoe 4 and the second brake shoe 5 are fixedly provided with butt-joint rings 15, and the inner sides of the first brake shoe 4, the second brake shoe 5 and the combined clamping strip 17 are provided with circular through holes 16 in a penetrating way.
The upper end of unable adjustment base 1 is located movable mounting between second calliper 11 and the first calliper 3 has braked wheel 10, second calliper 11, all through butt joint pivot 2 swing joint between first calliper 3 and the unable adjustment base 1, the one end inboard of second calliper 11 and first calliper 3 has all run through and has seted up spread groove 14, axle sleeve 12 has all been cup jointed to the other end inboard of second calliper 11 and first calliper 3, utilize axle sleeve 12 can reduce the frictional force when second calliper 11 and first calliper 3 rotate.
The outer surfaces of the side edges of the second caliper 11 and the first caliper 3 are both arc-shaped structures, and an elastic clamping seat 9 is movably arranged at the upper part between the second caliper 11 and the first caliper 3.
The equal fixed mounting in both ends surface middle part position of elasticity cassette 9 has connecting rod 6, second calliper 11, all connect through connecting rod 6 between first calliper 3 and the elasticity cassette 9, spring post 20 has been cup jointed in the side surface activity of connecting rod 6, the one end movable mounting that the side surface of connecting rod 6 is close to spring post 20 has removal fender dish 21, the one end external fixation of connecting rod 6 has cup jointed locking cap 22, through the screw thread butt joint between connecting rod 6 and the locking cap 22, utilize elasticity cassette 9 cooperation spring post 20 can drive second calliper 11 and first calliper 3 and carry out the elasticity operation that resets.
The magnetic device 8 is installed on the upper portion of the elastic clamping seat 9, two groups of arc-shaped clamping seats 23 are fixedly installed on the outer surface of the upper end of the elastic clamping seat 9, and the outer surface of the upper portion of each arc-shaped clamping seat 23 is of an arc-shaped structure.
The top outer surface of the second caliper 11 and the first caliper 3 is fixedly provided with a fixed clamping seat 7, the side outer surface of the fixed clamping seat 7 is of an inclined surface structure, and the fixed clamping seat 7 plays a role in fixing the magnetic device 8.
The invention has the advantages that when the device is used, the first brake shoe 4 and the second brake shoe 5 are arranged, when the device is used, the first brake shoe 4 and the second brake shoe 5 are simultaneously arranged on the first caliper 3 and the second caliper 11, so that the first caliper 3 and the second caliper 11 are provided with a double-brake structure, in the running process of an elevator, the brake wheel 10 synchronously rotates along with the transmission structure of the elevator, the motor drives the rotating wheel to rotate, the brake wheel 10 synchronously rotates, when the elevator has an emergency falling phenomenon, the magnetic force device 8 is matched with the butt joint rotating shaft 2 of the first caliper 3 and the second caliper 11 to pull the first caliper 3 and the second caliper 11 to rotate, so that the first caliper 3 and the second caliper 11 are inclined inwards, and the first brake shoe 4 and the second brake shoe 5 on the first caliper 3 and the second caliper 11 are enabled to be inclined inwards, the anti-falling device is clamped at the side edge of the brake wheel 10, the first brake shoe 4 and the second brake shoe 5 can be adjusted in a certain inclination manner by using the butt joint ring 15 of the first brake shoe 4 and the second brake shoe 5, so that the first brake shoe 4 and the second brake shoe 5 are tightly attached to the side edge of the brake wheel 10, and then the friction force among the first brake shoe 4, the second brake shoe 5 and the brake wheel 10 can be increased by using a plurality of groups of inclined grooves 18 on the first brake shoe 4 and the second brake shoe 5, so that the clamping operation of the first brake shoe 4 and the second brake shoe 5 is firmer, and the anti-falling device for the elevator car has a multi-brake structure by using the arrangement of the first brake shoe 4 and the second brake shoe 5, so that the safety of the anti-falling device for the elevator car is improved when the anti-falling device is used;
through setting up braking piece 13 and combination card strip 17, in this automatic prevent that falls arrester application process of elevator car, the user can take out the gim peg from circular through-hole 16, upwards stimulate braking piece 13 on first brake shoe 4 and the second brake shoe 5, make the combination card strip 17 of braking piece 13 take out from the concatenation draw-in groove 19 of first brake shoe 4 and second brake shoe 5, make separation between braking piece 13 and first brake shoe 4 and the second brake shoe 5, when braking piece 13 appears wearing and tearing phenomenon, the user can pass through the combination formula fixed knot structure that combination card strip 17 and concatenation draw-in groove 19 formed, make the change operation of braking piece 13 on first brake shoe 4 and the second brake shoe 5 more convenient, high durability and convenient use.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. An automatic anti-falling prevention device for an elevator car comprises a fixed base (1), a first caliper (3) and a second caliper (11), wherein the first caliper (3) is movably installed on the outer surface of the upper end of the fixed base (1), the second caliper (11) is movably installed on one side, close to the first caliper (3), of the outer surface of the upper end of the fixed base (1), and is characterized in that a first brake shoe (4) is movably installed on the outer surface of the side edge of the second caliper (11) and the outer surface of the side edge of the first caliper (3), a second brake shoe (5) is movably installed on one side, close to the first brake shoe (4), of the outer surface of the side edge of the second caliper (11) and the outer surface of the side edge of the first caliper (3), brake pads (13) are fixedly sleeved on the upper portions of the first brake shoe (4) and the second brake shoe (5), and a combined clamping strip (17) is fixedly installed in the middle positions of the lower ends of the brake pads (13), the inner sides of the upper ends of the first brake shoe (4) and the second brake shoe (5) are respectively provided with a splicing clamping groove (19), the first brake shoe (4), the second brake shoe (5) and the combined clamping strip (17) are fixedly butted through the splicing clamping grooves (19), and the outer surface of the upper end of the brake pad (13) is provided with a plurality of groups of inclined grooves (18).
2. The automatic anti-falling device for the elevator car is characterized in that the middle positions of the lower ends of the first brake shoe (4) and the second brake shoe (5) are fixedly provided with butt rings (15), and the inner sides of the first brake shoe (4), the second brake shoe (5) and the combined clamping strip (17) are provided with circular through holes (16) in a penetrating mode.
3. The automatic anti-falling device for the elevator car is characterized in that a brake wheel (10) is movably mounted between a second caliper (11) and a first caliper (3) at the upper end of a fixed base (1), the second caliper (11), the first caliper (3) and the fixed base (1) are movably connected through a butt joint rotating shaft (2), a connecting groove (14) is formed in the inner sides of one ends of the second caliper (11) and the first caliper (3) in a penetrating mode, and a shaft sleeve (12) is fixedly sleeved on the inner sides of the other ends of the second caliper (11) and the first caliper (3).
4. The automatic anti-falling device for the elevator car is characterized in that the outer surfaces of the side edges of the second caliper (11) and the first caliper (3) are both arc-shaped structures, and an elastic clamping seat (9) is movably arranged at the upper position between the second caliper (11) and the first caliper (3).
5. The automatic anti-falling device for the elevator car is characterized in that a connecting rod (6) is fixedly mounted in the middle of the outer surfaces of two ends of an elastic clamping seat (9), a second caliper (11), a first caliper (3) and the elastic clamping seat (9) are connected through the connecting rod (6), a spring column (20) is movably sleeved on the outer surface of the side edge of the connecting rod (6), a movable blocking disc (21) is movably mounted at one end, close to the spring column (20), of the outer surface of the side edge of the connecting rod (6), a fixing cap (22) is fixedly sleeved on the outer surface of one end of the connecting rod (6), and the connecting rod (6) and the fixing cap (22) are in butt joint through threads.
6. The automatic anti-falling device for the elevator car as claimed in claim 4, wherein the magnetic device (8) is installed on the upper portion of the elastic clamping seat (9), two sets of arc-shaped clamping seats (23) are fixedly installed on the outer surface of the upper end of the elastic clamping seat (9), and the outer surface of the upper portion of each arc-shaped clamping seat (23) is of an arc-shaped structure.
7. The automatic anti-falling device for the elevator car is characterized in that the top end outer surfaces of the second caliper (11) and the first caliper (3) are fixedly provided with the fixed clamping seat (7), and the side edge outer surface of the fixed clamping seat (7) is of an inclined surface structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210188409.5A CN114506758A (en) | 2022-02-28 | 2022-02-28 | Automatic anti-falling prevention device for elevator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210188409.5A CN114506758A (en) | 2022-02-28 | 2022-02-28 | Automatic anti-falling prevention device for elevator car |
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| Publication Number | Publication Date |
|---|---|
| CN114506758A true CN114506758A (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210188409.5A Pending CN114506758A (en) | 2022-02-28 | 2022-02-28 | Automatic anti-falling prevention device for elevator car |
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| Country | Link |
|---|---|
| CN (1) | CN114506758A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774769A (en) * | 2012-07-19 | 2012-11-14 | 石家庄五龙制动器股份有限公司 | Binary synchronization electromagnetic block brake of gantry |
| CN204400522U (en) * | 2015-01-23 | 2015-06-17 | 陕西帝奥电梯有限公司 | A kind of Novel elevator tractor drg |
| CN207699095U (en) * | 2017-12-06 | 2018-08-07 | 常熟理工学院 | A kind of elevator brake |
| CN212924228U (en) * | 2020-07-14 | 2021-04-09 | 辽宁中驰科技有限公司 | Novel structure elevator stopper that security performance is high |
| CN213628589U (en) * | 2020-09-24 | 2021-07-06 | 天津奥玛电梯有限公司 | Novel elevator band-type brake structure |
| CN214141365U (en) * | 2020-12-09 | 2021-09-07 | 无锡市宏达电梯有限公司 | Large-tonnage elevator braking device |
-
2022
- 2022-02-28 CN CN202210188409.5A patent/CN114506758A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774769A (en) * | 2012-07-19 | 2012-11-14 | 石家庄五龙制动器股份有限公司 | Binary synchronization electromagnetic block brake of gantry |
| CN204400522U (en) * | 2015-01-23 | 2015-06-17 | 陕西帝奥电梯有限公司 | A kind of Novel elevator tractor drg |
| CN207699095U (en) * | 2017-12-06 | 2018-08-07 | 常熟理工学院 | A kind of elevator brake |
| CN212924228U (en) * | 2020-07-14 | 2021-04-09 | 辽宁中驰科技有限公司 | Novel structure elevator stopper that security performance is high |
| CN213628589U (en) * | 2020-09-24 | 2021-07-06 | 天津奥玛电梯有限公司 | Novel elevator band-type brake structure |
| CN214141365U (en) * | 2020-12-09 | 2021-09-07 | 无锡市宏达电梯有限公司 | Large-tonnage elevator braking device |
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Application publication date: 20220517 |