CN109441977B - Elevator brake release device with emergency buffer function - Google Patents
Elevator brake release device with emergency buffer function Download PDFInfo
- Publication number
- CN109441977B CN109441977B CN201811323757.9A CN201811323757A CN109441977B CN 109441977 B CN109441977 B CN 109441977B CN 201811323757 A CN201811323757 A CN 201811323757A CN 109441977 B CN109441977 B CN 109441977B
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- Prior art keywords
- brake
- magnetic device
- slide
- elevator
- buffer function
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000009471 action Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
- F16D49/18—Brakes with three or more brake-blocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/70—Rods
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses an elevator brake release device with an emergency buffer function, which comprises a magnetic device, a brake rod, brake arms, brake shoes, an emergency structure, a magnetic device underframe and brake wheels, wherein the magnetic device is arranged on the magnetic device underframe, the horizontal left end and the horizontal right end of the magnetic device underframe are respectively provided with the brake arms, the brake shoes are arranged in the middle of the brake arms, the brake shoes are fixed with the brake arms by screws, the brake wheels are arranged between the two brake arms, and the brake rods are arranged on the outer sides of the brake arms relative to the magnetic device. The braking time is shortened, and the safety factor is improved.
Description
Technical Field
The invention relates to the field of elevator brake release devices, in particular to an elevator brake release device with an emergency buffer function.
Background
Elevator brake adopts electronic brake, through using for a long time, the round pin axle of stopper is because not having last machine oil for a long time, can passivate, the reaction is slow, can't let brake shoe laminating braked wheel immediately after the outage, realize the braking and stop immediately, still can continue to sink, if elevator place number of piles is too high, highly too high acceleration is big more like 12 layers, even only three people in the elevator, the weight of elevator and people's weight also can cause the casualties under the effect of automatic falling body, consequently need set up the unconditional buffer structure of an elevator, increase the frictional force of stopper, reduce the falling speed of axle railway carriage or compartment, give the stopper reaction time.
Disclosure of Invention
The defects of the prior art are realized by the following technical scheme: elevator brake release device with emergent buffer function, its structure includes magnetic device, brake lever, brake arm, brake shoe, emergent structure, magnetic device chassis, braked wheel, install the magnetic device on the magnetic device chassis, the brake arm is all installed at both ends about the magnetic device chassis level, be equipped with the brake shoe in the middle of the brake arm is positive, brake shoe and brake arm screw fixation are equipped with the braked wheel between two brake arms, the outside of the relative magnetic device of brake arm is located to the brake lever, the inside horizontal both ends of magnetic device chassis all are equipped with emergent structure, emergent structure and magnetic device chassis clearance fit.
Emergent structure is equipped with cable arrangement pipe, electro-magnet, powerful spring, slide bar, slide, braking plate, road junction and constitutes, the road junction is opened at magnetic device chassis bottom both ends, the electro-magnet has been inlayed on the inside top of road junction, the electro-magnet top is equipped with the cable arrangement pipe, the cable is settled the pipe and is exposed in the air behind running through the magnetic device chassis, the pipe diameter is settled to the electro-magnet length width and is greater than the cable, the slide has all been opened to the magnetic device chassis inner wall of road junction both sides, braking plate top both sides horizontal welding has the slide bar, slide bar and slide adopt sliding fit, the slide bar is close to with the slide and is equipped with powerful spring between that end of electro-magnet, both ends are fixed respectively on the inside top of slide and.
As a further optimization of the technical scheme, a steel sheet is arranged at the bottom end of the electromagnet and locked on the magnetic force device underframe through screws. As a further optimization of the technical scheme, the width of the steel sheet is less than half of that of the electromagnet.
As a further optimization of the technical scheme, the tail end of the brake plate, which is far away from the magnetic device, is in an arc shape and is completely attached to the brake wheel, more than two arc bulges are arranged on the surface of the tail end, and the arc bulges and the brake plate are in an integrated structure.
As a further optimization of the technical scheme, a baffle rod is arranged on the inner wall of the magnetic device bottom frame positioned below the slideway, namely the bottom end of the road junction, and the baffle rod is used as a bottom beam to support the magnetic device bottom frame.
Advantageous effects
Compared with the prior art, the elevator brake release device with the emergency buffer function has the following advantages:
1. the emergency structure is matched with the magnetic device, the brake rod and the brake arm together, when the brake wheel is passivated and reacts slowly, the two brake plates are immediately popped out to clamp the brake wheel and then rub the brake wheel, the rotating speed of the brake wheel is reduced, namely the rotating speed of an elevator motor is reduced, the descending speed of the elevator is reduced, the safety hazard of personnel is avoided, when the brake wheel reacts quickly, the friction can be increased, the braking time is shortened, and the safety coefficient is improved.
2. The bottom end of the brake plate is provided with the arc bulge, so that the friction between the brake plate and the brake wheel is increased, and the brake plate and the brake wheel are prevented from sliding relatively and being incapable of generating friction mutually.
3. The design of the stop lever is that the stop lever is used as a bottom beam to support a magnetic device bottom frame, stabilize the crossing, avoid the deformation of the crossing, reduce the diameter of the bottom end of the crossing, and limit the up-and-down sliding of the brake plate, so that the brake plate cannot slide up and down.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic sectional view of an elevator brake release device with an emergency buffer function according to the present invention.
Fig. 2 is a schematic cross-sectional view of an emergency structure according to the present invention.
Fig. 3 is a partial schematic view of an emergency structure according to the present invention.
Fig. 4 is a schematic cross-sectional view of the emergency structure of the present invention in operation.
Fig. 5 is a schematic cross-sectional view of the emergency structure of the present invention when not in operation.
FIG. 6 is an enlarged view of the structure A in FIG. 4 according to the present invention.
In the figure: the brake comprises a magnetic device 1, a brake rod 2, a brake arm 3, a brake shoe 4, an emergency structure 5, a magnetic device chassis 6, a brake wheel 7, a cable arranging pipe 51, an electromagnet 52, a strong spring 53, a sliding rod 54, a sliding way 55, a brake plate 57, a passage 58, a steel sheet 52a, an arc protrusion 5a and a stop lever 56.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Examples
Referring to fig. 1-6, the invention provides an elevator brake release device with an emergency buffer function, which comprises a magnetic device 1, a brake lever 2, brake arms 3, brake shoes 4, an emergency structure 5, a magnetic device chassis 6 and brake wheels 7, wherein the magnetic device 1 is mounted on the magnetic device chassis 6, the brake arms 3 are mounted at the left and right horizontal ends of the magnetic device chassis 6, the brake shoes 4 are arranged in the middle of the brake arms 3, the brake shoes 4 and the brake arms 3 are fixed by screws, the brake wheels 7 are arranged between the two brake arms 3, the brake lever 2 is arranged at the outer side of the brake arms 3 relative to the magnetic device 1, the emergency structures 5 are arranged at the two horizontal ends inside the magnetic device chassis 6, and the emergency structures 5 are movably matched with the magnetic device chassis 6.
Emergent structure 5 is equipped with cable arrangement pipe 51, electro-magnet 52, powerful spring 53, slide bar 54, slide 55, brake block 57, way mouth 58 and constitutes, the mouth 58 is opened at 6 bottom both ends of magnetic apparatus chassis, electro-magnet 52 has been inlayed on the inside top of mouth 58, electro-magnet 52 top is equipped with cable arrangement pipe 51, cable arrangement pipe 51 exposes in the air after running through magnetic apparatus chassis 6, the long width of electro-magnet 52 is greater than the cable and settles pipe 51 diameter, slide 55 has all been opened to the 6 inner walls of magnetic apparatus chassis of way mouth 58 both sides, brake block 57 top both sides horizontal welding has slide bar 54, slide bar 54 and slide 55 adopt sliding fit, slide bar 54 and slide 55 are close to being equipped with powerful spring 53 between the end of electro-magnet 52, both ends are fixed respectively on the inside top of slide 55 and slide bar 54 about powerful spring 53.
The bottom end of the electromagnet 52 is provided with a steel sheet 52a, the steel sheet 52a is locked on the magnetic device underframe 6 through screws, and the steel sheet 52a is used as a bottom support, so that the electromagnet 52 is prevented from loosening in multiple braking processes, and the braking plate 57 cannot be adjusted upwards.
The width of the steel sheet 52a is less than half of the width of the electromagnet 52, so that the electromagnet 52 is prevented from being completely shielded, and the electromagnet 52 cannot be completely attached to the brake plate 57 in an adsorption manner.
The tail end of the brake plate 57 far away from the magnetic device 1 is in an arc shape and is completely attached to the brake wheel 7, more than two arc protrusions 5a are arranged on the surface of the tail end, the arc protrusions 5a and the brake plate 57 are of an integrated structure, friction is increased, and the brake plate 57 and the brake wheel 7 are prevented from sliding relatively in the height process and being incapable of braking the brake wheel 7.
The inner wall of the magnetic device underframe 6 below the slideway 55, namely the bottom end of the road junction 58, is provided with a stop lever 56 which is used as a bottom beam to support the magnetic device underframe 6, so that the deformation of the magnetic device underframe 6 is avoided, the diameter of the bottom end of the road junction 58 is reduced, and the brake plate 57 is limited in up-down sliding and cannot slide down.
When the elevator is in a static state, the current of the magnetic device 1 passes through, at this time, because attraction force does not exist among the electromagnetic iron cores, the brake shoe 4 and the brake arm 3 tightly hold the brake wheel 7 under the pressure action of the brake rod 2, the motor is ensured not to rotate, and the brake shoe 57 completely descends the bottom end of the brake shoe 57 to be completely attached to the brake wheel 7 under the action of the strong spring 53, so that the friction force with the brake wheel 7 is increased, at the moment that the traction motor is electrified and rotated, the coil of the magnetic device 1 is simultaneously electrified and current is simultaneously electrified, the electromagnetic iron cores are rapidly magnetized and attracted to drive the brake arm 3 to enable the brake arm 2 to bear the acting force, the brake shoe 4 is opened and completely separated from the brake wheel 7, meanwhile, the magnetic force generated by the magnetization of the electromagnet 52 is larger than the elastic force of the strong spring 53, the brake shoe 57 completely slides to the; when the elevator car reaches a required stop, the traction motor is powered off, the electromagnet 52 and the magnetic device 1 are powered off at the same time, the brake arm 3 resets under the action of the brake rod 2, the reaction speed of the brake wheel 7 is clamped again relative to the brake shoe 4, the brake plate 57 fixed by the pin roll rapidly sinks in the slideway 55 under the action of the strong spring 53 and rubs with the brake wheel 7, therefore, when the brake wheel 7 is passivated and reacts slowly, the brake plate 57 immediately pops up to clamp the brake wheel 7, the rotating speed of the brake wheel 7 is reduced, namely the rotating speed of the elevator motor is reduced, the descending speed of the elevator is reduced, the danger of personnel safety is avoided, when the brake wheel 7 reacts rapidly, the friction can be increased, the braking time is shortened, and the safety coefficient is improved.
The invention solves the problems that after long-term use, a pin shaft of a brake is passivated and slow in response because engine oil is not fed for a long time, a brake shoe cannot be attached to a brake wheel immediately after power failure, braking is stopped immediately and the brake shoe can sink continuously, if the number of layers of an elevator is too high, the higher the high acceleration is, such as 12 layers, and even if three people exist in the elevator, personnel injury can be caused, through the mutual combination of the parts, under the cooperation of an emergency structure 5, a magnetic device 1, a brake rod 2, a brake arm 3 and the like, when the brake wheel 7 is slow in passivation reaction, a brake plate 57 pops up to rub the brake wheel 7 immediately, the rotating speed of the brake wheel 7 is reduced, namely the rotating speed of an elevator motor is reduced, the descending speed of the elevator is reduced, the safety hazard of personnel is avoided, and the friction of the brake wheel 7 can be increased when the brake wheel 7 reacts quickly, the braking time is shortened, and the safety factor is improved.
While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. Elevator brake release device with emergent buffer function, its structure includes magnetic device (1), brake lever (2), brake arm (3), brake shoe (4), emergent structure (5), magnetic device chassis (6), braked wheel (7), install magnetic device (1) on magnetic device chassis (6), brake arm (3) are all installed at both ends about magnetic device chassis (6) level, brake arm (3) are equipped with brake shoe (4) in the middle of brake arm (3) is positive, brake shoe (4) and brake arm (3) screw fixation are equipped with braked wheel (7) between two brake arms (3), the outside of brake arm (3) relative magnetic device (1) is located in brake arm (2), the inside horizontal both ends of magnetic device chassis (6) all are equipped with emergent structure (5), emergent structure (5) and magnetic device chassis (6) clearance fit, the method is characterized in that: emergency structure (5) are equipped with cable arrangement pipe (51), electro-magnet (52), powerful spring (53), slide bar (54), slide (55), brake block (57), crossing (58) and constitute, crossing (58) are opened at magnetic device chassis (6) bottom both ends, electro-magnet (52) have been inlayed on crossing (58) inside top, electro-magnet (52) top is equipped with cable arrangement pipe (51), cable arrangement pipe (51) run through expose in the air behind magnetic device chassis (6), electro-magnet (52) length and width is greater than cable arrangement pipe (51) diameter, slide (55) have all been opened to magnetic device chassis (6) inner wall of crossing (58) both sides, brake block (57) top both sides horizontal welding has slide bar (54), slide bar (54) and slide (55) adopt sliding fit, slide bar (54) and slide (55) are close to be equipped with powerful spring (53) between electromagnet (52) that end, the upper end and the lower end of the strong spring (53) are respectively fixed on the top end in the slide way (55) and the slide rod (54).
2. The elevator brake release device with the emergency buffer function according to claim 1, characterized in that: the bottom end of the electromagnet (52) is provided with a steel sheet (52 a).
3. The elevator brake release device with the emergency buffer function according to claim 2, characterized in that: the width of the steel sheet (52a) is less than half of that of the electromagnet (52).
4. The elevator brake release device with the emergency buffer function according to claim 1, characterized in that: the tail end of the brake plate (57) far away from the magnetic device (1) is arc-shaped and is completely attached to the brake wheel (7), and the surface of the tail end is provided with more than two arc-shaped protrusions (5 a).
5. The elevator brake release device with the emergency buffer function according to claim 1, characterized in that: a blocking rod (56) is arranged on the inner wall of the magnetic device bottom frame (6) which is positioned below the slideway (55), namely the bottom end of the road junction (58).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323757.9A CN109441977B (en) | 2018-11-08 | 2018-11-08 | Elevator brake release device with emergency buffer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323757.9A CN109441977B (en) | 2018-11-08 | 2018-11-08 | Elevator brake release device with emergency buffer function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109441977A CN109441977A (en) | 2019-03-08 |
| CN109441977B true CN109441977B (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811323757.9A Active CN109441977B (en) | 2018-11-08 | 2018-11-08 | Elevator brake release device with emergency buffer function |
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| Country | Link |
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| CN (1) | CN109441977B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178075B (en) * | 2019-09-26 | 2022-02-08 | 东莞理工学院 | Armored car fault analysis braking device convenient to clamp |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU969654A1 (en) * | 1981-04-13 | 1982-10-30 | За витель | Electromagnetic actuator of shoe brake |
| CN2641006Y (en) * | 2003-09-15 | 2004-09-15 | 江苏通润机电集团有限公司 | Electromagnetic brake with remote declutch means |
| DE102007035731A1 (en) * | 2007-07-30 | 2008-02-21 | Raimund Brenner | Electromagnet fluid brake for motor vehicle, has electromagnet provided in housing and comprising iron core, and movable foot lever switch that is provided with power contact device for activating and deactivating of electromagnet |
| JP2011063434A (en) * | 2009-09-18 | 2011-03-31 | Toshiba Elevator Co Ltd | Brake device for elevator hoisting machine, and method for adjusting the same |
| CN104555791A (en) * | 2014-11-12 | 2015-04-29 | 湖北民族学院 | Traction type elevator anti-brake loosening safety device |
| 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 |
| CN205773039U (en) * | 2016-05-25 | 2016-12-07 | 江苏立达电梯有限公司 | Elevator brake |
| CN106672841A (en) * | 2017-01-11 | 2017-05-17 | 海安县帅博机电设备制造厂 | Double-push magnetic brake |
| CN206615956U (en) * | 2017-03-10 | 2017-11-07 | 三洋电梯(珠海)有限公司 | A kind of Jing Yin drum-type band-type brake constructional device |
| CN207226893U (en) * | 2017-09-29 | 2018-04-13 | 康达电梯有限公司 | A kind of improved elevator brake |
| CN207467939U (en) * | 2017-11-27 | 2018-06-08 | 西尼机电（杭州）有限公司 | One kind prevents unintended car movement protection device |
-
2018
- 2018-11-08 CN CN201811323757.9A patent/CN109441977B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU969654A1 (en) * | 1981-04-13 | 1982-10-30 | За витель | Electromagnetic actuator of shoe brake |
| CN2641006Y (en) * | 2003-09-15 | 2004-09-15 | 江苏通润机电集团有限公司 | Electromagnetic brake with remote declutch means |
| DE102007035731A1 (en) * | 2007-07-30 | 2008-02-21 | Raimund Brenner | Electromagnet fluid brake for motor vehicle, has electromagnet provided in housing and comprising iron core, and movable foot lever switch that is provided with power contact device for activating and deactivating of electromagnet |
| JP2011063434A (en) * | 2009-09-18 | 2011-03-31 | Toshiba Elevator Co Ltd | Brake device for elevator hoisting machine, and method for adjusting the same |
| CN104555791A (en) * | 2014-11-12 | 2015-04-29 | 湖北民族学院 | Traction type elevator anti-brake loosening safety device |
| 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 |
| CN205773039U (en) * | 2016-05-25 | 2016-12-07 | 江苏立达电梯有限公司 | Elevator brake |
| CN106672841A (en) * | 2017-01-11 | 2017-05-17 | 海安县帅博机电设备制造厂 | Double-push magnetic brake |
| CN206615956U (en) * | 2017-03-10 | 2017-11-07 | 三洋电梯(珠海)有限公司 | A kind of Jing Yin drum-type band-type brake constructional device |
| CN207226893U (en) * | 2017-09-29 | 2018-04-13 | 康达电梯有限公司 | A kind of improved elevator brake |
| CN207467939U (en) * | 2017-11-27 | 2018-06-08 | 西尼机电（杭州）有限公司 | One kind prevents unintended car movement protection device |
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| Publication number | Publication date |
|---|---|
| CN109441977A (en) | 2019-03-08 |
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Effective date of registration: 20201119 Address after: Room 1134, 1 / F, building 7, No.135 Yanxing Road, Yangyi street, Lucheng District, Wenzhou City, Zhejiang Province 325000 Applicant after: Wenzhou xinguoyu Machinery Technology Co.,Ltd. Address before: No.1303, No.8, Changmao Champaign mansion, Zhongxing Street, Shanyao, Quangang District, Quanzhou City, Fujian Province Applicant before: Quanzhou City Quangang District industrial technology Co.,Ltd. of Xin Yue alliances |
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Application publication date: 20190308 Assignee: Wenzhou tuori Industrial Design Co.,Ltd. Assignor: Wenzhou xinguoyu Machinery Technology Co.,Ltd. Contract record no.: X2021330000564 Denomination of invention: Elevator brake release device with emergency buffer function Granted publication date: 20201204 License type: Common License Record date: 20211022 |
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