CN212953691U - Car braking safety device - Google Patents
Car braking safety device Download PDFInfo
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- CN212953691U CN212953691U CN202021690950.9U CN202021690950U CN212953691U CN 212953691 U CN212953691 U CN 212953691U CN 202021690950 U CN202021690950 U CN 202021690950U CN 212953691 U CN212953691 U CN 212953691U
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- car
- brake
- braking
- elevator
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- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000010008 shearing Methods 0.000 abstract description 3
- 208000012661 Dyskinesia Diseases 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model relates to a car braking safety device, belonging to the technical field of car braking safety, comprising a braking device, wherein the braking device comprises a fixedly connected bracket and a fixed bracket, both sides of the upper end of the bracket are provided with hinged braking arms, and the fixed bracket is positioned between the braking arms at both sides; one end of the brake arm is provided with a brake plate, and the other end of the brake arm is connected with the fixed frame through a plurality of fixed shafts; the elevator door detection device is simple in structure, and the problem of abnormal movement of the elevator when the traction type elevator car stops running and the elevator door is in an open state is solved through the braking device. The elevator car and the floor slab are prevented from shearing accidents caused by accidental movement of the traction type elevator car, and the elevator car is prevented from moving up and down when people in an open state enter and exit.
Description
Technical Field
The utility model relates to a car braking safety device especially relates to a safety device behind flat bed is berthhed to car, and it belongs to car braking safety technical field.
Background
The safe operation of the elevator consists of two aspects, namely the safety during the up-and-down operation of the elevator and the safety during the process that the personnel get in and out of the elevator car when the elevator stops, and the safety problem during the process that the personnel get in and out of the elevator car when the elevator stops is mainly researched. The elevator car occupies an important position in each part of the elevator, the safety and reliability of the elevator car can be greatly guaranteed, the personal safety of elevator taking personnel is guaranteed, the car door of the elevator is used as a part of the car and is used as a passage for the elevator taking personnel to go in and out, the elevator car is in a stop state when the door is opened, and the elevator car can normally run when the car door is closed. When the opening and closing of the car door and the operation of the car are asynchronous, the elevator car and the floor slab are sheared because of the accidental movement of the traction type elevator car, and the elevator car is in danger of moving up and down when people in an open state get in and out.
The method aims at the problems that the shearing between a lift car and a floor slab is caused by the synchronous relation between the opening and closing of a lift car door of the traction type elevator and the operation of the lift car, the failure or insufficient braking force of a brake, the serious abrasion of a steel wire rope and a traction wheel groove or the breakage of the steel wire rope (steel belt), the failure of a control program of a main board of the elevator or the short circuit and wire sealing of people, the short circuit or the adhesion of a detection switch of a landing door and a lift car door lock.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the not enough of existence among the above-mentioned prior art, provide a car braking safety device.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a car braking safety device comprises a braking device, wherein the braking device comprises a support and a fixing frame which are fixedly connected, two sides of the upper end of the support are respectively provided with a hinged braking arm, and the fixing frame is positioned between the braking arms on the two sides; one end of the brake arm is provided with a brake plate, and the other end of the brake arm is connected with the fixed frame through a plurality of fixed shafts; the brake spring is arranged on the fixed shaft and located between the brake arm and the fixed frame, the electromagnetic brake device is further arranged between the brake arm and the fixed frame, and the electromagnetic brake device is provided with a car door detection switch which is electrically connected.
Preferably, the support lower extreme is equipped with the cylinder, and the flexible end of cylinder is equipped with fixed connection's cam, and the cam is located the free end of mount.
Preferably, the cam is fixedly connected with the cylinder through a support body.
Preferably, the number of the fixed shafts is at least two.
Preferably, the fixed shaft is located between the electromagnetic braking device and the brake plate.
Preferably, the fixed shaft penetrates through the brake arm, a bolt fixedly connected with the fixed shaft is arranged at the free end of the fixed shaft, and the bolt is located on the outer side of the brake arm.
Compared with the prior art, the beneficial effects of the utility model are that: the structure is simple, and the problem of abnormal movement of the elevator when the traction type elevator car is in a stop operation state and the car door is opened is solved through the braking device. The elevator car and the floor slab are prevented from shearing accidents caused by accidental movement of the traction type elevator car, and the elevator car is prevented from moving up and down when people in an open state enter and exit. The elevator car is ensured to be safe and reliable when the elevator taking personnel enter and exit after the elevator car stops at the flat floor; the synchronous relation between the opening and closing of the car door and the running of the car is ensured, and the car is fixed on the guide rail under the action of the car brake in the state that the car door is opened, so that the car is in a stop state.
Drawings
Fig. 1 is a perspective view of the braking device of the present invention.
Fig. 2 is a plan view of the braking device of the present invention.
Fig. 3 is a left side view of the braking device of the present invention.
Fig. 4 is a schematic structural diagram of the present invention.
In the figure, 1, a car door detection switch; 2. a braking device; 21. a support; 22. a brake arm; 23. a brake plate; 24. a fixed mount; 25. a fixed shaft; 26. a brake spring; 27. an electromagnetic braking device; 28. a cylinder; 29. a cam; 210. and a support body.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 4, a car braking safety device comprises a braking device 2, wherein the braking device 2 comprises a bracket 21 and a fixed frame 24 which are fixedly connected, both sides of the upper end of the bracket 21 are provided with hinged braking arms 22, and the fixed frame 24 is positioned between the braking arms 22 on both sides; one end of the brake arm 22 is provided with a brake plate 23, and the other end is connected with a fixed frame 24 through a plurality of fixed shafts 25; the brake spring 26 is arranged on the fixed shaft 25, the brake spring 26 is located between the brake arm 22 and the fixed frame 24, the electromagnetic brake device 27 is further arranged between the brake arm 22 and the fixed frame 24, and the electrically connected car door detection switch 1 is arranged on the electromagnetic brake device 27.
The lower end of the bracket 21 is provided with an air cylinder 28, the telescopic end of the air cylinder 28 is provided with a fixedly connected cam 29, and the cam 29 is positioned at the free end of the fixed frame 24.
The cam 29 is fixedly connected with the cylinder 28 through a support body 210.
The number of the fixed shafts 25 is at least two.
The fixed shaft 25 is located between the electromagnetic braking device 27 and the braking plate 23.
The fixed shaft 25 penetrates through the brake arm 22, and a bolt fixedly connected with the free end of the fixed shaft 25 is arranged on the outer side of the brake arm 22.
The working principle is as follows:
the closed state of the car door: when the elevator is closed by the car door and is ready to leave a flat zone, the car door detection switch 1 detects that the car door is closed, the whole circuit is connected, the electromagnetic braking device 27 is electrified, the suction braking arm 22 enables the braking plate 23 to be opened after overcoming the elastic force action of the braking spring 26, at the moment, the car braking device 2 does not clamp the guide rail, and the elevator can normally run.
The car door is in an open state: when the car door is opened and the elevator reaches a leveling zone, the car door detection switch 1 detects that the car door is opened, the whole circuit is disconnected, the electromagnetic braking device 27 loses power, the compression on the braking spring 26 is released, the braking spring 26 enables the braking plate 23 to clamp the guide rail after the elastic force action, at the moment, the elevator car braking device 2 takes effect, and the air cylinder 28 can drive the cam 29 to be connected with the inner side walls of the braking arms 22 on the two sides, so that the effect of supporting the braking arms 22 on the two sides is achieved.
Elevator car increases the security when arresting gear 2 will very big assurance elevator stops, effectual avoiding opening the door and walking the ladder phenomenon, the device key feature is by car door direct control formulating device, both become direct correlation by indirect correlation, the car is fixed firm when guaranteeing personnel business turn over elevator car, the elevator is when the flat bed position sedan-chair door is opened, the unable safety device that removes of elevator car, this simple structure, when stopping operation of traction type elevator car has been solved through arresting gear 2, the problem of the abnormal motion that the elevator appears under the sedan-chair door open mode. The measure that the elevator car and the floor slab are sheared due to the fact that the traction type elevator car moves accidentally is achieved, and the fact that the elevator car cannot move up and down when people enter and exit in an open state of the elevator car door is guaranteed. The elevator car is ensured to be safe and reliable when the elevator taking personnel enter and exit after the elevator car stops at the flat floor. The synchronous relation between the opening and closing of the car door and the running of the car is ensured, and the car is fixed on the guide rail under the action of the car brake in the state that the car door is opened, so that the car is in a stop state. When the car door is closed, the car brake is in an open state, and the elevator car can normally run; the car braking safety device directly acts on the car, avoids the indirect control of accidental movement of the car, essentially solves the risk caused by the accidental movement of the car, avoids the control of the movement of the car through indirect devices such as a brake, a car door layer door switch and traction force, can timely brake the car under the condition of sudden power failure, and increases one layer of protection. The safety device is independently connected with a 220V power supply arranged on the car top, so that the safety device failure caused by sealing a safety loop is avoided.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A car braking safety device is characterized in that: the brake device comprises a brake device (2), wherein the brake device (2) comprises a bracket (21) and a fixing frame (24) which are fixedly connected, hinged brake arms (22) are arranged on two sides of the upper end of the bracket (21), and the fixing frame (24) is positioned between the brake arms (22) on two sides; one end of the brake arm (22) is provided with a brake plate (23), and the other end of the brake arm is connected with the fixed frame (24) through a plurality of fixed shafts (25); the car door detection device is characterized in that a brake spring (26) is arranged on the fixed shaft (25), the brake spring (26) is located between the brake arm (22) and the fixed frame (24), an electromagnetic brake device (27) is further arranged between the brake arm (22) and the fixed frame (24), and the car door detection switch (1) which is electrically connected is arranged on the electromagnetic brake device (27).
2. A car brake safety device as recited in claim 1, wherein: the lower end of the support (21) is provided with an air cylinder (28), the telescopic end of the air cylinder (28) is provided with a fixedly connected cam (29), and the cam (29) is located at the free end of the fixed frame (24).
3. A car brake safety device as recited in claim 2, wherein: the cam (29) is fixedly connected with the air cylinder (28) through a supporting body (210).
4. A car brake safety device as recited in claim 1, wherein: the number of the fixed shafts (25) is at least two.
5. A car brake safety device as recited in claim 1, wherein: the fixed shaft (25) is positioned between the electromagnetic braking device (27) and the braking plate (23).
6. A car brake safety device as recited in claim 1, wherein: the fixed shaft (25) penetrates through the brake arm (22), a bolt fixedly connected with the free end of the fixed shaft (25) is arranged at the outer side of the brake arm (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021690950.9U CN212953691U (en) | 2020-08-14 | 2020-08-14 | Car braking safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021690950.9U CN212953691U (en) | 2020-08-14 | 2020-08-14 | Car braking safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212953691U true CN212953691U (en) | 2021-04-13 |
Family
ID=75352242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021690950.9U Expired - Fee Related CN212953691U (en) | 2020-08-14 | 2020-08-14 | Car braking safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212953691U (en) |
-
2020
- 2020-08-14 CN CN202021690950.9U patent/CN212953691U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210413 |