CN110182665B - Speed limiting protection device, elevator and method thereof - Google Patents
Speed limiting protection device, elevator and method thereof Download PDFInfo
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- CN110182665B CN110182665B CN201910526516.2A CN201910526516A CN110182665B CN 110182665 B CN110182665 B CN 110182665B CN 201910526516 A CN201910526516 A CN 201910526516A CN 110182665 B CN110182665 B CN 110182665B
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- wheel
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- brake
- connecting piece
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000001174 ascending effect Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 230000004044 response Effects 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
Abstract
The invention discloses a speed limiting protection device, an elevator and a method thereof, wherein the speed limiting protection device comprises the following components: the speed limiting wheel mechanism, the triggering mechanism and the safety tongs; the speed limiting wheel mechanism comprises: a speed limiting wheel which is contacted with the guide rail and rotates along with the ascending and descending of the lift car; the centrifugal connecting piece is connected with the speed-limiting wheel and is provided with a brake end and a centrifugal end, the brake end is connected with the brake wheel, and the centrifugal end is connected with the centrifugal block; the trigger mechanism includes: a friction wheel coaxially arranged with the speed limiting wheel; one end of the ejector rod is arranged on the friction wheel, and the other end of the ejector rod is in driving connection with the safety tongs; when the car goes down in overspeed, the braking wheel locks the friction wheel so that the speed limiting wheel and the friction wheel synchronously rotate to trigger the safety tongs to brake the car. The invention has simple structure and short response time, can avoid the arrangement of a steel wire rope and a tensioning device, and improves the utilization rate of a well.
Description
Technical Field
The invention relates to the technical field of elevator safety, in particular to a speed limiting protection device, an elevator and a method thereof.
Background
Elevator overspeed governor among the prior art sets up one set of overspeed governor on the computer lab generally, and wire rope is placed to the overspeed governor wheel, and wire rope runs through whole well, sets up overspeed device tensioner in the well bottom and tightens wire rope, and overspeed device tensioner provides wire rope and overspeed governor wheel's positive pressure and guarantees frictional force, and wire rope connects on the lifting rod of entablature and forms the closed loop, operates with the car synchrony. When the car runs in overspeed, the speed limiter triggers the action to stop the speed limiter wheel, and the lifting rod of the upper beam is lifted through the steel wire rope, so that the safety tongs are triggered to act to stop the car, and a speed-limiting safety protection system is formed.
However, the elevator speed limiter in the prior art needs a certain time from triggering to braking action, and has response lag, so that the elevator is braked after running for a certain distance, and the problem of response lag exists. Moreover, the steel wire rope can have the shaking and swinging condition in the use process, and the steel wire rope frequently scrapes and collides the outer wall of the elevator car, so that the elevator car is easy to damage, and the matching effect of the steel wire rope and the speed limiter wheel can be influenced. In addition, the elevator speed limiter is further provided with a tensioning device at the bottom of the hoistway to control the tensioning force of the steel wire rope, and the tensioning device occupies the hoistway space and influences hoistway arrangement.
Disclosure of Invention
The invention aims to provide a speed limiting protection device which is simple in structure, short in response time and capable of improving the utilization rate of a well.
In order to achieve the above object, the technical scheme of the present invention is as follows:
a speed limit protection device, comprising: the speed limiting wheel mechanism, the triggering mechanism and the safety tongs; the speed limiting wheel mechanism comprises: a speed limiting wheel which is contacted with the guide rail and rotates along with the ascending and descending of the lift car; the centrifugal connecting piece is connected with the speed-limiting wheel and is provided with a brake end and a centrifugal end, the brake end is connected with the brake wheel, and the centrifugal end is connected with the centrifugal block; the trigger mechanism includes: a friction wheel coaxially arranged with the speed limiting wheel; one end of the ejector rod is arranged on the friction wheel, and the other end of the ejector rod is in driving connection with the safety tongs; when the car goes down in overspeed, the braking wheel locks the friction wheel so that the speed limiting wheel and the friction wheel synchronously rotate to trigger the safety tongs to brake the car.
Compared with the prior art, the speed limiting protection device adopting the structure has the advantages that the speed limiting wheel rotates along with the running of the car, the corresponding steel wire rope and the corresponding tensioning device do not need to be arranged as in the prior art, the utilization rate of a well is improved, the centrifugal block does centrifugal motion when the car is overspeed, the brake wheel is in contact with the friction wheel and is locked, the friction wheel synchronously rotates with the speed limiting wheel under the action of the brake wheel, the safety tongs are triggered to work through the ejector rod, the response time is short, the car can be braked in a short time, and the safety of passengers is ensured.
Further, a first through hole is formed in the speed limiting wheel; the centrifugal connecting piece is also provided with a first brake wheel connecting piece, a second brake wheel connecting piece and a rotating end which is arranged close to the brake end; one end of the first brake wheel connecting piece is connected with the rotating end, and the other end of the first brake wheel connecting piece penetrates through the first through hole to be connected with the brake wheel; one end of the second brake wheel connecting piece is connected with the brake end, and the other end of the second brake wheel connecting piece is connected with the brake wheel.
Further, the speed limiting wheel mechanism further comprises an elastic connecting piece, one end of the elastic connecting piece is fixedly connected with the speed limiting wheel, and the other end of the elastic connecting piece is connected with the brake end.
Further, the speed limiting protection device also comprises an auxiliary wheel mechanism, which comprises: a support base connected to the safety tongs; an auxiliary wheel arranged on the supporting base, which is contacted with the guide rail and rotates along with the ascending and descending of the lift car; and the upper end of the speed limiting wheel connecting piece is rotationally connected with the supporting base, and the lower end of the speed limiting wheel connecting piece is connected with the speed limiting wheel.
Further, the auxiliary wheel mechanism further comprises a speed limiting wheel adjusting member connected with the middle end of the speed limiting wheel connecting member so as to change the distance between the speed limiting wheel and the guide rail.
Further, the auxiliary wheel mechanism also comprises an auxiliary wheel connecting piece and an auxiliary wheel adjusting piece; the upper end of the auxiliary wheel connecting piece is rotationally connected with the supporting base, and the lower end of the auxiliary wheel connecting piece is connected with the auxiliary wheel; the auxiliary wheel adjusting piece is connected with the middle end of the speed limiting wheel connecting piece so as to change the distance between the auxiliary wheel and the guide rail.
Further, the speed limiting protection device also comprises a detection mechanism, which comprises: the installation fixing plate is connected with the speed limiting wheel connecting piece; the detection switch is used for generating an overspeed signal, is arranged on the installation fixing plate and is in communication connection with the elevator control system; the trigger rod is used for triggering the detection switch to work and is rotationally connected with the installation fixing plate, and the trigger rod comprises a first trigger end and a second trigger end; when the car is in overspeed down, the centrifugal block is in contact with the first trigger end, so that the second trigger end is in contact with the detection switch and triggers the detection switch to work.
As a specific embodiment, the speed limiting wheel mechanism comprises two centrifugal connecting pieces, and the two centrifugal connecting pieces are connected through a connecting rod.
The invention also provides a speed limiting protection method, which is characterized by comprising the following steps:
s1: when the car runs at overspeed, the centrifugal block makes centrifugal motion and drives the centrifugal connecting piece to rotate around the rotating end, so that the brake wheel approaches to the direction of the friction wheel and contacts with the friction wheel;
s2: the friction wheel rotates synchronously with the speed limiting wheel under the action of the brake wheel;
s3: the ejector rod rises along with the rotation of the friction wheel, so that the safety tongs enter a braking state to brake the car.
The invention also provides an elevator comprising the speed limiting protection device.
For a better understanding and implementation, the present invention is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic view of a speed limit protection device of the present invention;
fig. 2 is a schematic view of the speed limit protection of the present invention when the car is operating normally;
fig. 3 is a schematic view of the overspeed down of the car of the speed limit protection device of the present invention;
fig. 4 is a schematic view of the overspeed down of the car of the speed limit protection device of the present invention;
FIG. 5 is a schematic view of a first embodiment of the speed limiting mechanism of the present invention;
FIG. 6 is a schematic view of the trigger mechanism of the present invention;
FIG. 7 is a schematic view of the auxiliary wheel mechanism of the present invention;
fig. 8 is a schematic view of a second embodiment of the speed limiting mechanism of the present invention.
[ reference numerals ]
100 speed limiting wheel mechanism 110 speed limiting wheel 120 centrifugal connecting piece
121 brake end 122 brake wheel
123 centrifugal end 124 centrifugal block
125 first brake wheel connector 126 second brake wheel connector
127 rotating end 128 elastic connecting piece
129 connecting rod
200 trigger mechanism 210 friction wheel 220 ejector rod
230 return spring
300 auxiliary wheel mechanism 310 supports base 320 auxiliary wheels
Speed limiting wheel adjusting piece of 331 speed limiting wheel connecting piece 332
321 auxiliary wheel connector 322 auxiliary wheel adjuster
400 detection mechanism 410 installs fixed plate 420 detection switch
430 trigger lever
500 safety tongs 600 guide rail
Detailed Description
For a fuller understanding of the objects, features, and effects of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
Example 1
As shown in fig. 1 to 7, a speed limit protection device includes: a speed limiting wheel mechanism 100, a trigger mechanism 200 and a safety gear 500; the speed limiting wheel mechanism 100 includes: a speed limiting wheel 110 which is in contact with the guide rail 600 and rotates as the car moves up and down; a centrifugal connecting piece 120 rotatably connected with the speed limiting wheel 110 and provided with a brake end 121 and a centrifugal end 123, wherein the brake end 121 is connected with a brake wheel 122, and the centrifugal end 123 is connected with a centrifugal block 124; the trigger mechanism 200 includes: a friction wheel 210 coaxially disposed with the speed limiting wheel 110; a push rod 220, one end of which is arranged on the friction wheel 210, and the other end of which is in driving connection with the safety gear 500; when the car is overspeed, the brake wheel 122 locks the friction wheel 210, so that the speed limiting wheel 332 rotates synchronously with the friction wheel 210, and the safety gear 500 is triggered to brake the car.
Specifically, the safety tongs are arranged on the car and used for stopping the car. As shown in fig. 2, when the car is operating normally, the speed limiting wheel rotates with the up and down movement of the car, and the friction wheel arranged coaxially with the speed limiting wheel does not rotate; when the car is overspeed and descending, as shown in fig. 3, the rotating speed of the speed limiting wheel is accelerated, so that the centrifugal block moves outwards due to centrifugal force, the centrifugal piece rotates to drive the brake wheel to move towards the friction wheel and lock the friction wheel, and after the friction wheel is locked, the friction wheel rotates synchronously with the speed limiting wheel to drive the ejector rod to ascend, and when the wedge in the safety tongs is triggered to move upwards, the wedge clamps the hoistway guide rail to brake the car, as shown in fig. 4. The safety tongs may be any safety tongs known in the art, and the present invention is not limited thereto.
Compared with the prior art, the speed limiting protection device adopting the structure has the advantages that the speed limiting wheel rotates along with the running of the car, the corresponding steel wire rope and the corresponding tensioning device do not need to be arranged as in the prior art, the utilization rate of a well is improved, the centrifugal block does centrifugal motion when the car is overspeed, the brake wheel is in contact with the friction wheel and is locked, the friction wheel synchronously rotates with the speed limiting wheel under the action of the brake wheel, the safety tongs are triggered to work through the ejector rod, the response time is short, the car can be braked in a short time, and the safety of passengers is ensured.
Preferably, the speed limiting wheel mechanism comprises at least one centrifugal piece, at least one brake wheel and at least one centrifugal block, wherein the number of the centrifugal pieces, the number of the brake wheels and the number of the centrifugal blocks are matched. Through setting up a plurality of centrifuges, stopping wheel and centrifugal piece, can ensure that the car can obtain stopping when overspeed down, prevent to stop inefficacy because of single centrifuges work and damage the time-induced, guarantee passenger's safety better.
Preferably, the surface of the friction wheel is provided with transverse lines, cross lines or wavy lines, so that the friction force of the friction wheel is increased, the friction wheel can be better locked when the car overspeed, and the friction wheel is treated by adopting a process for increasing the friction coefficient, so that the invention is not limited.
As shown in fig. 5, further, the speed limiting wheel 110 is provided with a first through hole; the centrifugal connecting piece 120 is further provided with a first brake wheel connecting piece 125, a second brake wheel connecting piece 126 and a rotating end 127 which is arranged close to the brake end; one end of the first brake wheel connecting member 125 is connected to the rotating end 127, and the other end is connected to the brake wheel 122 through the first through hole; one end of the second brake wheel connecting member 126 is connected to the brake end 121, and the other end is connected to the brake wheel 122. Specifically, through setting up first brake wheel connecting piece for the brake wheel can wind the axle at first brake wheel connecting piece place rotates, and through setting up the second brake wheel connecting piece, has two tie points between messenger's brake wheel and the centrifugal connection piece, can prevent that the brake wheel from damaging and leading to the car brake inefficacy at locking in-process.
As shown in fig. 2 to 4, the speed limiting wheel mechanism 100 further includes an elastic connection member 128, one end of which is fixedly connected to the speed limiting wheel 110, and the other end of which is connected to the braking end 121. Specifically, after the problem of the car is solved, when the speed limiting protection device needs to be reset, the car is controlled to ascend for a small distance, the speed limiting wheel and the friction wheel rotate in opposite directions, so that the brake wheel moves outwards under the elastic acting force of the elastic connecting piece, and the reset of the brake wheel is completed, so that the speed limiting protection device can be reused.
Preferably, as shown in fig. 6, a return spring 230 is disposed on the ejector rod 220, and the return spring provides a holding force for the ejector rod during normal operation of the car, so as to prevent false triggering caused by excessive acceleration of the elevator motor; meanwhile, the return spring also provides downward acting force for downward return of the ejector rod when the speed limiting protection device is reset.
As shown in fig. 7, further, the speed limit protection device further includes an auxiliary wheel mechanism 300, which includes: a support base 310 connected to the safety gear 500; the auxiliary wheel 320 is arranged on the support base, is contacted with the guide rail 600 and rotates along with the upward and downward movement of the car, and has a guiding function on the running of the car in the vertical direction through the contact and compression of the auxiliary wheel on the guide rail; and the speed limiting wheel connecting piece 332 has an upper end rotatably connected with the supporting base 310 and a lower end connected with the speed limiting wheel 110.
Wherein, the auxiliary wheel mechanism 300 further includes a speed limiting wheel adjuster 332 connected to the middle end of the speed limiting wheel connector 331 to change the distance between the speed limiting wheel 110 and the guide rail 600. Specifically, the speed limiting wheel adjusting piece comprises a first connecting rod connected with the speed limiting wheel connecting piece, and a first pressure spring and a first locking nut sleeved on the first connecting rod; one end of the first pressure spring is in contact with the speed limiting wheel connecting piece, the other end of the first pressure spring is in contact with the first locking nut, the expansion and contraction amount of the first pressure spring is changed by screwing or unscrewing the first locking nut, the speed limiting wheel connecting piece is enabled to approach or depart from the direction of the guide rail, the distance between the guide rail and the speed limiting wheel is enabled to be changed, and therefore friction force between the speed limiting wheel and the guide rail is guaranteed.
As shown in fig. 7, further, the auxiliary wheel mechanism 300 further includes an auxiliary wheel connector 321 and an auxiliary wheel adjuster 322; the upper end of the auxiliary wheel connecting piece 321 is rotatably connected with the supporting base 310, and the lower end is connected with the auxiliary wheel 320; the auxiliary wheel adjuster 322 is connected to the middle end of the speed limiting wheel connector 321 to change the distance between the auxiliary wheel 320 and the guide rail 600. Specifically, the auxiliary wheel adjusting piece comprises a second connecting rod connected with the auxiliary wheel connecting piece, and a second pressure spring and a second locking nut sleeved on the first connecting rod; one end of the second pressure spring is in contact with the auxiliary wheel connecting piece, the other end of the second pressure spring is in contact with the second locking nut, the expansion and contraction amount of the second pressure spring is changed by screwing or unscrewing the second locking nut, the auxiliary wheel connecting piece is enabled to approach or depart from the direction of the guide rail, the distance between the guide rail and the auxiliary wheel is enabled to be changed, and therefore friction force between the auxiliary wheel and the guide rail is guaranteed.
As shown in fig. 2 to 4, the speed limit protection device further includes a detection mechanism 400, which includes: a mounting plate 410 connected to the speed limiting wheel connector 331; a detection switch 420 for generating an overspeed signal, which is provided on the installation fixing plate 410 and is communicatively connected with the elevator control system; the trigger lever 430 for triggering the detection switch to work is rotatably connected with the mounting and fixing plate 410, and the trigger lever 430 includes a first trigger end and a second trigger end; when the car is in overspeed, the centrifugal block 124 contacts with the first trigger end, so that the second trigger end contacts with the detection switch and triggers the detection switch to work.
Specifically, as shown in fig. 3, when the car is in overspeed down, the centrifugal block moves outwards due to centrifugal force, contacts with the first trigger end of the trigger rod and pushes the first trigger end to move outwards, and as the first trigger end is rotationally connected with the installation fixing part, the second trigger end moves inwards and contacts with the detection switch, the detection switch is triggered to generate an overspeed signal and is transmitted to the elevator control system, so that relevant staff responsible for elevator operation can know that the car is in overspeed down in time, and corresponding operation can be adopted.
Preferably, the detection mechanism further comprises a tension spring, one end of the tension spring is fixedly connected with the installation fixing part, and the other end of the tension spring is connected with the second triggering end so as to provide acting force for resetting the triggering rod. The detection switch can be an electromagnetic detection switch, a worker can reset the detection switch by clicking the switch, and the detection switch can be processed in other known manners in the art, and the invention is not limited to the detection switch.
Example 2
The technical scheme of this embodiment is basically the same as that of embodiment 1, and the main difference is that:
as shown in fig. 8, the speed limiting wheel mechanism comprises two centrifugal connecting pieces 120, the two centrifugal connecting pieces 120 are connected through a connecting rod 129, and the two centrifugal connecting pieces are connected through the connecting rod, so that synchronous operation of the centrifugal connecting pieces is ensured, and synchronous locking of the two brake wheels and the friction wheel is ensured.
The invention also provides a speed limiting protection method, which is characterized by comprising the following steps:
s1: when the car runs at overspeed, the centrifugal block makes centrifugal motion and drives the centrifugal connecting piece to rotate around the rotating end, so that the brake wheel approaches to the direction of the friction wheel and contacts with the friction wheel;
s2: the friction wheel rotates synchronously with the speed limiting wheel under the action of the brake wheel;
s3: the ejector rod rises along with the rotation of the friction wheel, so that the safety tongs enter a braking state to brake the car.
The invention also provides an elevator comprising the speed limiting protection device.
The present invention is not limited to the above-described embodiments, but, if various modifications or variations of the present invention are not departing from the spirit and scope of the present invention, the present invention is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (9)
1. A speed limit protection device, comprising:
the speed limiting wheel mechanism, the triggering mechanism and the safety tongs;
the speed limiting wheel mechanism comprises:
a speed limiting wheel which is contacted with the guide rail and rotates along with the ascending and descending of the lift car;
the centrifugal connecting piece is connected with the speed-limiting wheel and is provided with a brake end and a centrifugal end, the brake end is connected with the brake wheel, and the centrifugal end is connected with the centrifugal block;
the trigger mechanism includes:
a friction wheel coaxially arranged with the speed limiting wheel;
one end of the ejector rod is arranged on the friction wheel, and the other end of the ejector rod is in driving connection with the safety tongs;
when the car is in overspeed down, the braking wheel locks the friction wheel so as to enable the speed limiting wheel and the friction wheel to synchronously rotate, and the safety tongs are triggered to brake the car;
the speed limiting wheel is provided with a first through hole;
the centrifugal connecting piece is also provided with a first brake wheel connecting piece, a second brake wheel connecting piece and a rotating end which is arranged close to the brake end;
one end of the first brake wheel connecting piece is connected with the rotating end, and the other end of the first brake wheel connecting piece penetrates through the first through hole to be connected with the brake wheel;
one end of the second brake wheel connecting piece is connected with the brake end, and the other end of the second brake wheel connecting piece is connected with the brake wheel.
2. The rate limiting protection device of claim 1, wherein:
the speed limiting wheel mechanism further comprises an elastic connecting piece, one end of the elastic connecting piece is fixedly connected with the speed limiting wheel, and the other end of the elastic connecting piece is connected with the brake end.
3. The rate limiting protection device of claim 1, wherein:
the speed limiting protection device also comprises an auxiliary wheel mechanism, which comprises:
a support base connected to the safety tongs;
an auxiliary wheel arranged on the supporting base, which is contacted with the guide rail and rotates along with the ascending and descending of the lift car;
and the upper end of the speed limiting wheel connecting piece is rotationally connected with the supporting base, and the lower end of the speed limiting wheel connecting piece is connected with the speed limiting wheel.
4. A speed limit protector according to claim 3 wherein:
the auxiliary wheel mechanism further comprises a speed limiting wheel adjusting piece which is connected with the middle end of the speed limiting wheel connecting piece so as to change the distance between the speed limiting wheel and the guide rail.
5. The rate limiting protection device of claim 4, wherein:
the auxiliary wheel mechanism also comprises an auxiliary wheel connecting piece and an auxiliary wheel adjusting piece;
the upper end of the auxiliary wheel connecting piece is rotationally connected with the supporting base, and the lower end of the auxiliary wheel connecting piece is connected with the auxiliary wheel;
the auxiliary wheel adjusting piece is connected with the middle end of the auxiliary wheel connecting piece so as to change the distance between the auxiliary wheel and the guide rail.
6. The rate limiting protection device of claim 4, wherein:
the speed limiting protection device also comprises a detection mechanism, which comprises:
the installation fixing plate is connected with the speed limiting wheel connecting piece;
the detection switch is used for generating an overspeed signal, is arranged on the installation fixing plate and is in communication connection with the elevator control system;
the trigger rod is used for triggering the detection switch to work and is rotationally connected with the installation fixing plate, and the trigger rod comprises a first trigger end and a second trigger end;
when the car is in overspeed down, the centrifugal block is in contact with the first trigger end, so that the second trigger end is in contact with the detection switch and triggers the detection switch to work.
7. The rate limiting protection device of claim 1, wherein:
the speed limiting wheel mechanism comprises two centrifugal connecting pieces, and the two centrifugal connecting pieces are connected through a connecting rod.
8. A speed limit protection method, which is applied to the speed limit protection device according to any one of claims 1 to 7, comprising:
s1: when the car runs at overspeed, the centrifugal block makes centrifugal motion and drives the centrifugal connecting piece to rotate around the rotating end, so that the brake wheel approaches to the direction of the friction wheel and contacts with the friction wheel;
s2: the friction wheel rotates synchronously with the speed limiting wheel under the action of the brake wheel;
s3: the ejector rod rises along with the rotation of the friction wheel, so that the safety tongs enter a braking state to brake the car.
9. Elevator, characterized by comprising a speed limit protection according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910526516.2A CN110182665B (en) | 2019-06-18 | 2019-06-18 | Speed limiting protection device, elevator and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910526516.2A CN110182665B (en) | 2019-06-18 | 2019-06-18 | Speed limiting protection device, elevator and method thereof |
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| Publication Number | Publication Date |
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| CN110182665A CN110182665A (en) | 2019-08-30 |
| CN110182665B true CN110182665B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910526516.2A Active CN110182665B (en) | 2019-06-18 | 2019-06-18 | Speed limiting protection device, elevator and method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104901B (en) * | 2021-11-18 | 2023-05-16 | 中建三局集团有限公司 | Follow-up speed limiter attached to car |
| CN115072518A (en) * | 2022-06-16 | 2022-09-20 | 常熟理工学院 | Cordless speed-limiting safety tongs |
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| JPS5254566U (en) * | 1975-10-17 | 1977-04-19 | ||
| DE29604779U1 (en) * | 1996-03-05 | 1996-06-13 | Wang Chiou Nan | Elevator emergency device |
| JP2002020055A (en) * | 2000-06-12 | 2002-01-23 | Otis Elevator Co | Elevator car brake connector and rotary actuator interface device for elevator car |
| JP2008007289A (en) * | 2006-06-30 | 2008-01-17 | Hitachi Ltd | Safety device of elevator |
| CN101301976A (en) * | 2008-07-07 | 2008-11-12 | 西子奥的斯电梯有限公司 | Integrated security device of elevator |
| CN105923496A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel unidirectional automatic anti-sliding speed governor capable of monitoring speed |
| CN108275537A (en) * | 2018-03-22 | 2018-07-13 | 日立电梯（中国）有限公司 | A kind of mechanical elevator speed-limiting safety jaw |
| CN210150538U (en) * | 2019-06-18 | 2020-03-17 | 广州广日电梯工业有限公司 | Speed limit protection device and elevator |
-
2019
- 2019-06-18 CN CN201910526516.2A patent/CN110182665B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5254566U (en) * | 1975-10-17 | 1977-04-19 | ||
| DE29604779U1 (en) * | 1996-03-05 | 1996-06-13 | Wang Chiou Nan | Elevator emergency device |
| JP2002020055A (en) * | 2000-06-12 | 2002-01-23 | Otis Elevator Co | Elevator car brake connector and rotary actuator interface device for elevator car |
| JP2008007289A (en) * | 2006-06-30 | 2008-01-17 | Hitachi Ltd | Safety device of elevator |
| CN101301976A (en) * | 2008-07-07 | 2008-11-12 | 西子奥的斯电梯有限公司 | Integrated security device of elevator |
| CN105923496A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel unidirectional automatic anti-sliding speed governor capable of monitoring speed |
| CN108275537A (en) * | 2018-03-22 | 2018-07-13 | 日立电梯（中国）有限公司 | A kind of mechanical elevator speed-limiting safety jaw |
| CN210150538U (en) * | 2019-06-18 | 2020-03-17 | 广州广日电梯工业有限公司 | Speed limit protection device and elevator |
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| CN110182665A (en) | 2019-08-30 |
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