CN113401765A - Air pressure type elevator - Google Patents
Air pressure type elevator Download PDFInfo
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- CN113401765A CN113401765A CN202110764473.9A CN202110764473A CN113401765A CN 113401765 A CN113401765 A CN 113401765A CN 202110764473 A CN202110764473 A CN 202110764473A CN 113401765 A CN113401765 A CN 113401765A
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- car
- pressure type
- air pressure
- type elevator
- gear
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- 230000005540 biological transmission Effects 0.000 claims description 38
- 239000003381 stabilizer Substances 0.000 claims description 30
- 230000009467 reduction Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
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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
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
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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
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/284—Buffer-stops for cars, cages, or skips mounted on cars or counterweights
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention relates to the technical field of pneumatic elevators, and discloses a pneumatic elevator, which solves the problem that in the use process of a common pneumatic elevator, if an out-of-control phenomenon occurs, personnel in the elevator can be injured, so that the safety performance is poor; according to the invention, through the matched use of the control unit and the speed reducing unit, when the car is out of control, the speed reducing unit is started through the control unit, and the descending speed of the car is reduced through the speed reducing unit, so that a good safety protection effect is achieved for personnel in the car.
Description
Technical Field
The invention belongs to the technical field of air pressure type elevators, and particularly relates to an air pressure type elevator.
Background
At present, the elevator is integrated into various fields of work, life and the like of people, plays a role of lifting, and can bring convenience to various aspects of work, life and the like of people just because of the existence of the elevator; when the elevator runs, vibration can be generated, and passenger experience is influenced.
In the use process of a general air pressure type elevator, if the out-of-control phenomenon occurs, the general air pressure type elevator can injure people in the general air pressure type elevator, so that the safety performance is poor.
Disclosure of Invention
Aiming at the situation, the invention provides the air pressure type elevator to overcome the defects of the prior art, and the problem of poor safety performance caused by the fact that the general air pressure type elevator can injure people in the general air pressure type elevator if the general air pressure type elevator is out of control in the using process is effectively solved.
In order to achieve the purpose, the invention provides the following technical scheme: the air pressure type elevator comprises a car and a guide rail, wherein the two sides of the car are symmetrically provided with a speed reduction unit, the speed reduction unit is connected with the car through cylinders symmetrically arranged, the bottom end of the car is provided with a buffer unit, the two ends of the buffer unit are respectively connected with the corresponding speed reduction unit, and the car is further provided with a control unit.
Preferably, the speed reduction unit comprises a shell, a driving assembly is installed on one side of the shell, a transmission assembly installed in the shell is arranged on one side of the driving assembly, a stabilizer located below the driving assembly is installed on the transmission assembly, and a friction block is installed on the stabilizer.
Preferably, the driving assembly comprises a mounting frame mounted on the shell, a pulley is mounted on the mounting frame, a coaxial driving gear is mounted on the pulley, a driven gear mounted in the shell is arranged on one side of the driving gear, and the driving gear is connected with the driven gear through a chain.
Preferably, the transmission assembly adopts a first transmission part, the first transmission part comprises an eccentric wheel coaxially mounted with the driven gear, a top plate is arranged below the eccentric wheel, connecting rods are symmetrically mounted at the bottom end of the top plate, return springs are mounted on the connecting rods, the connecting rods are symmetrically mounted on a bottom plate, a folding rod is mounted on the bottom plate, and one side of the folding rod is in sliding connection with the stabilizer.
Preferably, the top end of the other side of the folding rod is rotatably connected with the bottom plate, the bottom end of the other side of the folding rod is rotatably connected with the shell, guide wheels are symmetrically arranged in the middle of the folding rod, the connecting rod is inserted into the middle plate, and the middle plate is arranged on the inner wall of the shell.
Preferably, the transmission assembly adopts a second transmission part, the second transmission part comprises an incomplete gear coaxially mounted with the driven gear, the incomplete gear is meshed with a driving rack, the driving rack is meshed with a transmission gear mounted in the shell, the transmission gear is meshed with a driven rack, and a limiting mechanism is mounted on one side of the driving rack and the bottom end of the driven rack.
Preferably, stop gear is including installing in shells inner wall's mounting panel, and the mounting groove has been seted up to the inside of mounting panel, and slidable mounting has the installation piece in the mounting groove, is connected through return spring between installation piece and the mounting groove.
Preferably, the stabilizer includes the frame, and the slide is installed to the inside symmetry of frame, has seted up the spout in the slide, is equipped with X shape pole between the spout, and the slider is all installed to the end department of X shape pole, and slider symmetry slidable mounting all passes through expanding spring between spout and the slider and between two sliders that correspond in the spout.
Preferably, the two sides of the frame are both provided with openings, and one of the openings is in sliding connection with the two ends of one side of the folding rod.
Preferably, the buffering unit comprises a bottom frame located below the car, the bottom frame is connected with the car through a buffering spring, telescopic rods are installed at two ends of the bottom frame, a connecting frame vertically arranged is installed at one end of each telescopic rod, and the connecting frame is rotatably connected with the center of the X-shaped rod.
Compared with the prior art, the invention has the beneficial effects that:
1) in the work, the control unit, the speed reduction unit and the like are matched, so that when the car is out of control, the speed reduction unit is started through the control unit, the descending speed of the car is reduced through the speed reduction unit, and a good safety protection effect is achieved for personnel in the car;
2) in the work, the friction block can be in close contact with the guide rail through the stabilizer by matching the arranged stabilizer with the friction block and the like, so that the friction block is prevented from being separated from the guide rail due to long-time abrasion, the normal use of the speed reduction unit is ensured, and the fault is not easy to occur;
3) the car safety protection device comprises a car, a buffer unit, a stabilizer and the like, wherein the buffer unit is arranged on the car, the stabilizer is arranged on the car, the buffer unit is matched with the stabilizer, the buffer unit is arranged on the car, the stabilizer is arranged on the car, the buffer unit is arranged on the car, the stabilizer is arranged on the buffer unit, the buffer unit is arranged on the car, the stabilizer is arranged on the car, and the stabilizer is arranged on the car.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a deceleration unit according to the present invention;
FIG. 3 is a schematic view of a driving assembly according to the present invention;
FIG. 4 is a schematic view of a transmission member according to the present invention;
FIG. 5 is a schematic structural view of a second driving member according to the present invention;
FIG. 6 is a schematic view of the stabilizer of the present invention;
fig. 7 is a schematic view of a buffer unit structure according to the present invention.
In the figure: 1. a car; 2. a guide rail; 3. a deceleration unit; 301. a housing; 302. a drive assembly; 3021. a mounting frame; 3022. a pulley; 3023. a driving gear; 3024. a driven gear; 3025. a chain; 303. a transmission assembly; 304. a stabilizer; 3041. a frame; 3042. a slide plate; 3043. a chute; 3044. an X-shaped bar; 3045. a slider; 3046. a tension spring; 3047. an opening; 305. a friction block; 4. a buffer unit; 401. a chassis; 402. a buffer spring; 403. a telescopic rod; 404. a connecting frame; 5. a control unit; 6. a first transmission part; 601. an eccentric wheel; 602. a top plate; 603. a connecting rod; 604. a return spring; 605. a base plate; 606. a folding bar; 607. a guide wheel; 608. a middle plate; 7. a second transmission part; 701. an incomplete gear; 702. a driving rack; 703. a transmission gear; 704. a driven rack; 705. a limiting mechanism; 7051. mounting a plate; 7052. mounting grooves; 7053. mounting blocks; 7054. a return spring; 8. and a cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
In the first embodiment, as shown in fig. 1 to 7, the elevator comprises a car 1 and a guide rail 2, wherein deceleration units 3 are symmetrically installed on both sides of the car 1, the deceleration units 3 are connected with the car 1 through symmetrically arranged cylinders 8, a buffer unit 4 is installed at the bottom end of the car 1, both ends of the buffer unit 4 are respectively connected with the corresponding deceleration units 3, and a control unit 5 is also installed on the car 1;
can be through taking place when out of control at car 1, through 8 work of the control unit 5 control cylinder, cylinder 8 drives speed reduction unit 3 and guide rail 2 contact, reduces the speed when car 1 whereabouts through speed reduction unit 3, plays good shock attenuation effect to car 1 through buffer unit 4 at last to play good guard action to the people.
In the second embodiment, on the basis of the first embodiment, the reduction unit 3 includes a housing 301, a driving assembly 302 is installed on one side of the housing 301, a transmission assembly 303 installed in the housing 301 is installed on one side of the driving assembly 302, a stabilizer 304 located below the driving assembly 302 is installed on the transmission assembly 303, and a friction block 305 is installed on the stabilizer 304;
under the effect of cylinder 8, make drive assembly 302 and guide rail 2 contact, then make drive assembly 302 drive transmission assembly 303 motion, transmission assembly 303 drives stabilizer 304 motion, reduces the falling speed of car 1 through the friction between the clutch blocks 305 on the stabilizer 304 and the guide rail 2 to avoid the speed too big to cause the injury to the people.
In the third embodiment, on the basis of the second embodiment, the driving assembly 302 includes a mounting rack 3021 mounted on the housing 301, a pulley 3022 is mounted on the mounting rack 3021, a coaxial driving gear 3023 is mounted on the pulley 3022, a driven gear 3024 mounted in the housing 301 is disposed on one side of the driving gear 3023, and the driving gear 3023 and the driven gear 3024 are connected by a chain 3025;
the pulley 3022 can roll along the guide rail 2 to drive the driving gear 3023 thereon to rotate, the driving gear 3023 drives the driven gear 3024 to rotate through the chain 3025, and the driven gear 3024 drives the transmission assembly 303 to move, during which no external power equipment is needed.
Fourth embodiment, on the basis of the third embodiment, the transmission assembly 303 employs a first transmission member 6, the first transmission member 6 includes an eccentric wheel 601 coaxially mounted with the driven gear 3024, a top plate 602 is disposed below the eccentric wheel 601, a connecting rod 603 is symmetrically mounted at the bottom end of the top plate 602, a return spring 604 is mounted on the connecting rod 603, the connecting rod 603 is symmetrically mounted on a bottom plate 605, a folding rod 606 is mounted on the bottom plate 605, one side of the folding rod 606 is slidably connected with the stabilizer 304, the top end of the other side of the folding rod 606 is rotatably connected with the bottom plate 605, the bottom end of the other side of the folding rod 606 is rotatably connected with the housing 301, a guide wheel 607 is symmetrically mounted in the middle of the folding rod 606, the connecting rod 603 is inserted into the middle plate 608, and the middle plate 608 is mounted on the inner wall of the housing 301;
the driven gear 3024 can drive the eccentric wheel 601 thereon to rotate, the eccentric wheel 601 presses the top plate 602 in the moving process, and then the top plate 602 can move upwards under the action of the return spring 604, so the top plate 602 can drive the bottom plate 605 to move up and down through the connecting rod 603, the folding rod 606 is pressed when the bottom plate 605 moves downwards, the folding rod 606 drives the stabilizer 304 to move after being extended, the friction block 305 on the stabilizer 304 is enabled to be in contact with the guide rail 2, when the bottom plate 605 moves upwards, the friction block 305 can be driven to be separated from the guide rail 2, the circulation action can be realized, and the intermittent contact between the friction block 305 and the guide rail 2 can be realized, so the speed reduction effect on the car 1 can be realized.
Fifth embodiment, on the basis of the third embodiment, the transmission assembly 303 employs a second transmission member 7, the second transmission member 7 includes an incomplete gear 701 coaxially mounted with the driven gear 3024, the incomplete gear 701 is engaged and connected with a driving rack 702, the driving rack 702 is engaged and connected with a transmission gear 703 mounted in the housing 301, the transmission gear 703 is engaged and connected with a driven rack 704, a limiting mechanism 705 is mounted on one side of the driving rack 702 and the bottom end of the driven rack 704, the limiting mechanism 705 includes a mounting plate 7051 mounted on the inner wall of the housing 301, an installation groove 7052 is formed in the mounting plate 7051, a mounting block 7053 is slidably mounted in the installation groove 7052, and the mounting block 7053 is connected with the installation groove 7052 through a return spring 7054;
can drive incomplete gear 701 through driven gear 3024 and rotate, incomplete gear 701 drives initiative rack 702 through the mode of meshing and moves, initiative rack 702 drives driven rack 704 through driving pinion 703 and moves, driven rack 704 drives the motion of clutch blocks 305 on the stabilizer 304, make it contact with guide rail 2, owing to adopt incomplete gear 701, consequently, rotate after a certain period incomplete gear 701 no longer with initiative rack 702 contact, under the effect of return spring 7054, make installation piece 7053 drive initiative rack 702 upward movement, the circulation action, can realize the intermittent type contact of clutch blocks 305 with guide rail 2, thereby play the effect of slowing down to car 1.
Sixth embodiment, on the basis of the second embodiment, the stabilizer 304 includes a frame 3041, sliding plates 3042 are symmetrically installed inside the frame 3041, sliding grooves 3043 are formed in the sliding plates 3042, X-shaped rods 3044 are arranged between the sliding grooves 3043, sliders 3045 are installed at ends of the X-shaped rods 3044, the sliders 3045 are symmetrically and slidably installed in the sliding grooves 3043, the sliding grooves 3043 and the sliders 3045 are connected with each other through extension springs 3046 and the two corresponding sliders 3045, openings 3047 are formed in two sides of the frame 3041, and one of the openings 3047 is slidably connected with two ends of one side of the folding rod 606;
when the friction block 305 contacts the guide rail 2, the friction block 305 presses one of the sliding plates 3042, one of the sliding plates 3042 presses the X-shaped rod 3044, so that the X-shaped rod 3044 contracts, and then the friction block 305 can be in close contact with the guide rail 2 by using the extension spring 3046, so that the friction block 305 is prevented from being separated from the guide rail 2 due to abrasion.
Seventh embodiment, on the basis of the first embodiment, the buffer unit 4 includes a bottom frame 401 located below the car 1, the bottom frame 401 is connected to the car 1 through a buffer spring 402, telescopic rods 403 are installed at both ends of the bottom frame 401, a vertically arranged connecting frame 404 is installed at one end of each telescopic rod 403, and the connecting frame 404 is rotatably connected to the center of the X-shaped rod 3044;
after the speed reduction unit 3 is used for reducing the speed, the bottom frame 401 below the car 1 is firstly contacted with the ground, at this time, a good buffering effect can be achieved through the buffering spring 402, meanwhile, the bottom frame 401 drives the connecting frame 404 to move through the telescopic rod 403, the connecting frame 404 impacts the X-shaped rod 3044, the X-shaped rod 3044 drives the sliding block 3045 to extrude the telescopic spring 3046, the effect of further buffering is achieved through the plurality of arranged telescopic springs 3046, and the overall buffering protection performance of the car 1 is improved.
In the examples, it is to be noted that: the control unit 5 includes an acceleration sensor, a power supply module and a microprocessor, the acceleration sensor is electrically connected to the power supply module and the microprocessor, which are described in the patent document with the prior issued patent publication number "CN 112209199B", so that the detailed description thereof is omitted in the present application, and the stabilizer 304 and the housing 301 are connected by symmetrically arranged telescopic rods, which are not labeled in the figure, so as to improve the connection strength of the stabilizer 304.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a vapour-pressure type elevator, includes car (1) and guide rail (2), its characterized in that: the car (1) is provided with the speed reduction units (3) on two sides symmetrically, the speed reduction units (3) are connected with the car (1) through cylinders (8) symmetrically arranged, the bottom end of the car (1) is provided with the buffer unit (4), two ends of the buffer unit (4) are respectively connected with the corresponding speed reduction units (3), and the car (1) is provided with the control unit (5).
2. The air pressure type elevator according to claim 1, characterized in that: the speed reduction unit (3) comprises a shell (301), a driving assembly (302) is installed on one side of the shell (301), a transmission assembly (303) installed in the shell (301) is arranged on one side of the driving assembly (302), a stabilizer (304) located below the driving assembly (302) is installed on the transmission assembly (303), and a friction block (305) is installed on the stabilizer (304).
3. The air pressure type elevator according to claim 2, characterized in that: the driving assembly (302) comprises an installation rack (3021) installed on the shell (301), a pulley (3022) is installed on the installation rack (3021), a coaxial driving gear (3023) is installed on the pulley (3022), a driven gear (3024) installed in the shell (301) is arranged on one side of the driving gear (3023), and the driving gear (3023) and the driven gear (3024) are connected through a chain (3025).
4. The air pressure type elevator according to claim 2, characterized in that: the transmission assembly (303) adopts a transmission part I (6), the transmission part I (6) comprises an eccentric wheel (601) coaxially mounted with a driven gear (3024), a top plate (602) is arranged below the eccentric wheel (601), a connecting rod (603) is symmetrically mounted at the bottom end of the top plate (602), a return spring (604) is mounted on the connecting rod (603), the connecting rod (603) is symmetrically mounted on a bottom plate (605), a folding rod (606) is mounted on the bottom plate (605), and one side of the folding rod (606) is slidably connected with the stabilizer (304).
5. The air pressure type elevator according to claim 4, characterized in that: the top end of the other side of the folding rod (606) is rotatably connected with the bottom plate (605), the bottom end of the other side of the folding rod (606) is rotatably connected with the shell (301), guide wheels (607) are symmetrically arranged in the middle of the folding rod (606), the connecting rod (603) is inserted into the middle plate (608), and the middle plate (608) is arranged on the inner wall of the shell (301).
6. The air pressure type elevator according to claim 2, characterized in that: the transmission assembly (303) adopts a second transmission part (7), the second transmission part (7) comprises an incomplete gear (701) coaxially mounted with a driven gear (3024), the incomplete gear (701) is meshed with a driving rack (702), the driving rack (702) is meshed with a transmission gear (703) mounted in the shell (301), the transmission gear (703) is meshed with a driven rack (704), and a limiting mechanism (705) is mounted on one side of the driving rack (702) and the bottom end of the driven rack (704).
7. The air pressure type elevator according to claim 6, characterized in that: stop gear (705) are including installing in mounting panel (7051) of casing (301) inner wall, and mounting groove (7052) have been seted up to the inside of mounting panel (7051), and slidable mounting has installation piece (7053) in mounting groove (7052), connects through return spring (7054) between installation piece (7053) and mounting groove (7052).
8. The air pressure type elevator according to claim 2, characterized in that: the stabilizer (304) comprises a frame (3041), sliding plates (3042) are symmetrically installed inside the frame (3041), sliding grooves (3043) are formed in the sliding plates (3042), X-shaped rods (3044) are arranged between the sliding grooves (3043), sliding blocks (3045) are installed at the ends of the X-shaped rods (3044), the sliding blocks (3045) are symmetrically and slidably installed in the sliding grooves (3043), and the sliding grooves (3043) and the sliding blocks (3045) and the corresponding two sliding blocks (3045) are connected through telescopic springs (3046).
9. The air pressure type elevator according to claim 8, characterized in that: openings (3047) are formed in the two sides of the frame (3041), and one of the openings (3047) is connected with the two ends of one side of the folding rod (606) in a sliding mode.
10. The air pressure type elevator according to claim 1, characterized in that: buffer unit (4) are connected through buffer spring (402) including chassis (401) that are located car (1) below, between chassis (401) and car (1), and telescopic link (403) are all installed at the both ends of chassis (401), and link (404) of perpendicular setting are installed to the one end of telescopic link (403), and link (404) and the center department of X-shaped pole (3044) rotate and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110764473.9A CN113401765A (en) | 2021-07-06 | 2021-07-06 | Air pressure type elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110764473.9A CN113401765A (en) | 2021-07-06 | 2021-07-06 | Air pressure type elevator |
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| Publication Number | Publication Date |
|---|---|
| CN113401765A true CN113401765A (en) | 2021-09-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110764473.9A Pending CN113401765A (en) | 2021-07-06 | 2021-07-06 | Air pressure type elevator |
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| CN (1) | CN113401765A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104905A (en) * | 2021-11-11 | 2022-03-01 | 珠江富士电梯（中国）有限公司 | Safety device of elevator car |
| CN114148839A (en) * | 2021-12-29 | 2022-03-08 | 李国领 | Intelligent elevator capable of automatically adjusting descending speed |
| CN114314247A (en) * | 2022-01-04 | 2022-04-12 | 安徽舒马克电梯股份有限公司 | Elevator car safety protection mechanism |
| CN114620577A (en) * | 2022-02-10 | 2022-06-14 | 湖州市特种设备检测研究院(湖州市电梯应急救援指挥中心) | Portable detection device for accidental movement of elevator car |
| CN116101868A (en) * | 2023-01-06 | 2023-05-12 | 广东卓梅尼技术股份有限公司 | Elevator with fall protection mechanism |
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|---|---|---|---|---|
| CN114104905A (en) * | 2021-11-11 | 2022-03-01 | 珠江富士电梯（中国）有限公司 | Safety device of elevator car |
| CN114104905B (en) * | 2021-11-11 | 2023-08-11 | 珠江富士电梯（中国）有限公司 | Safety device of elevator car |
| CN114148839A (en) * | 2021-12-29 | 2022-03-08 | 李国领 | Intelligent elevator capable of automatically adjusting descending speed |
| CN114314247A (en) * | 2022-01-04 | 2022-04-12 | 安徽舒马克电梯股份有限公司 | Elevator car safety protection mechanism |
| CN114314247B (en) * | 2022-01-04 | 2023-11-03 | 安徽舒马克电梯股份有限公司 | Elevator car safety protection mechanism |
| CN114620577A (en) * | 2022-02-10 | 2022-06-14 | 湖州市特种设备检测研究院(湖州市电梯应急救援指挥中心) | Portable detection device for accidental movement of elevator car |
| CN114620577B (en) * | 2022-02-10 | 2024-08-16 | 湖州市特种设备检测研究院(湖州市电梯应急救援指挥中心) | Portable detection device for unexpected movement of elevator car |
| CN116101868A (en) * | 2023-01-06 | 2023-05-12 | 广东卓梅尼技术股份有限公司 | Elevator with fall protection mechanism |
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Application publication date: 20210917 |