CN111532919A - Prevent protection mechanism that car removed - Google Patents
Prevent protection mechanism that car removed Download PDFInfo
- Publication number
- CN111532919A CN111532919A CN202010359748.6A CN202010359748A CN111532919A CN 111532919 A CN111532919 A CN 111532919A CN 202010359748 A CN202010359748 A CN 202010359748A CN 111532919 A CN111532919 A CN 111532919A
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- CN
- China
- Prior art keywords
- driving
- rope
- plate
- guide
- protection mechanism
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- 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.)
- Pending
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- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 230000002265 prevention Effects 0.000 claims description 11
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/06—Door or gate operation of sliding doors
- B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/143—Control systems or devices electrical
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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
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
- F16D63/008—Brakes acting on a linearly moving member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses a protection mechanism for preventing a lift car from moving, which comprises a driving device and safety tongs, wherein the driving device comprises a supporting plate, a driving wheel and a driven wheel are fixed on the supporting plate, a first transmission rope is sleeved outside the driving wheel and the driven wheel, and the driving wheel is connected with a motor; the support plate is provided with two driving wheels, a second driving rope is sleeved outside the driving wheels and is parallel to the first driving rope, two door panel connecting plates are fixed on the second driving rope, one door panel connecting plate is connected with the upper side of the second driving rope, the other door panel connecting plate is connected with the lower side of the second driving rope, and one door panel connecting plate is connected with the first driving rope; the safety gear and the driving device are provided with an intermediate connecting device, and the driving device drives the safety gear to be locked or unlocked through the intermediate connecting device. The invention has simple structure and high safety and can adopt mechanical linkage or electrical linkage. When the elevator opens the door, the door plant connecting plate moves dorsad, and the safety tongs are locked, and the door is opened, and the car is not fixed, can not take place the injury accident of business turn over door.
Description
Technical Field
The invention belongs to the technical field of elevators, and particularly relates to a protection mechanism for preventing a car from moving.
Background
The mode that present elevator prevented unexpected removal of car is generally for modes such as band-type brake braking and photoelectric sensor discernment combination, rope gripper and photoelectric sensor, overspeed governor and rope gripper, and these modes can reach the purpose of preventing the unexpected removal of car in certain operating mode, but the safety effect is limited, and the debugging is complicated. In addition, when people get in and out of the lift car, protection is mainly achieved through safety tongs and a tractor contracting brake, but the elevator usually stops after dropping for a large distance, and casualties are usually caused.
Disclosure of Invention
Aiming at the existing problems, the invention provides a protection mechanism for preventing a car from moving, which has a simple structure and a good safety effect.
The technical scheme for solving the technical problems is as follows: a protection mechanism for preventing a car from moving comprises a driving device and safety tongs, wherein the driving device comprises a supporting plate, a driving wheel and a driven wheel are fixed on the supporting plate, a first transmission rope is sleeved outside the driving wheel and the driven wheel, and the driving wheel is connected with a motor; the support plate is provided with two driving wheels, a second driving rope is sleeved outside the driving wheels and is parallel to the first driving rope, two door panel connecting plates are fixed on the second driving rope, one door panel connecting plate is connected with the upper side of the second driving rope, the other door panel connecting plate is connected with the lower side of the second driving rope, and one door panel connecting plate is connected with the first driving rope; the safety gear and the driving device are provided with an intermediate connecting device, and the driving device drives the safety gear to be locked or unlocked through the intermediate connecting device.
The invention is further provided that the safety gear is a mechanical safety gear, and the safety gear is connected with the steel wire rope; the steel wire rope is connected with a transmission piece, and the transmission piece is connected with the first transmission rope.
The invention is further provided that the upper edge of the support plate is connected with an upper side plate, the transmission part is provided with a clamping groove for clamping on the upper side plate, and the bottom of the transmission part is connected with the first transmission rope.
The invention is further provided that a first guide wheel is fixed on the upper side plate, and the steel wire rope bypasses the first guide wheel.
The invention is further provided that a fixing plate is connected between the door panel connecting plate and the first transmission rope.
The invention is further set that the transmission part comprises a guide plate, a slide block and a guide block, the guide plate is fixed on the support plate, a guide groove is formed in the guide plate, the guide groove comprises a straight line section groove and an arc section groove, a slide block moving groove is formed in the guide block, the top and the bottom of the guide block are respectively connected with the first transmission rope and the second transmission rope, and the end part of the steel wire rope is fixed on the slide block.
The invention is further provided that a second guide wheel is fixed on the support plate, and the steel wire rope bypasses the second guide wheel.
The invention is further provided that a guide rail is fixed on the support plate below the second transmission rope, more than two rollers are connected with the bottom of the door panel connecting plate, a rotating shaft fixed on the door panel connecting plate is arranged in the middle of each roller, the rollers are in contact with two sides of the guide rail, and the contact surfaces of the rollers and the guide rail are arc-shaped.
The invention is further arranged in that the first transmission rope is a synchronous belt or a steel wire rope, and the second transmission rope is a synchronous belt or a steel wire rope.
The invention is further arranged in such a way that the safety gear is an electronic safety gear, and a door lock sensor and a position sensor are arranged on the outer side of the elevator car.
To sum up, when the elevator opened a door, the protection mechanism who prevents the car and remove carries out the linkage action, and the door plant connecting plate removes dorsad, realizes the locking of safety tongs, and then the door is opened, and the car can not take place to remove, and then can not take place the injury accident of business turn over door.
Drawings
Fig. 1 is a schematic view of a protection mechanism for preventing movement of a car according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
fig. 3 is a schematic structural view of a protection mechanism for preventing the movement of the car according to another embodiment of the present invention;
fig. 4 is a schematic view of a use state of the embodiment of the invention.
6, safety tongs; 7. a wire rope; 8. a support plate; 9. a driving wheel; 10. a driven wheel; 11. a first drive line; 12. a second drive rope; 13. a driving wheel; 14. a door panel connecting plate; 15. an upper side plate; 16. a transmission member; 17. a card slot; 18. a first guide wheel; 19. a fixing plate; 20. a guide plate; 21. a guide groove; 22. a guide block; 23. a slider; 24. a second guide wheel; 25. a guide rail; 26. a roller; 27. a rotating shaft.
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.
The invention provides a protection mechanism for preventing a car from moving, which comprises a driving device and safety tongs 6, wherein the driving device comprises a supporting plate 8, a driving wheel 9 and a driven wheel 10 are fixed on the supporting plate 8, a first transmission rope 11 is sleeved outside the driving wheel 9 and the driven wheel 10, and the driving wheel 9 is connected with a motor. The support plate 8 is provided with two driving wheels 13, a second driving rope 12 is sleeved outside the driving wheels 13, the second driving rope 12 is parallel to the first driving rope 11, two door panel connecting plates 14 are fixed on the second driving rope 12, one door panel connecting plate 14 is connected with the upper side of the second driving rope 12, the other door panel connecting plate 14 is connected with the lower side of the second driving rope 12, and one door panel connecting plate 14 is connected with the first driving rope 11. The safety gear 6 and the driving device are provided with an intermediate connecting device, and the driving device drives the safety gear 6 to be locked or unlocked through the intermediate connecting device.
In the present invention, the first transmission rope 11 is a synchronous belt or a steel wire rope, the second transmission rope 12 is a synchronous belt or a steel wire rope, and in the following embodiments, description is given by taking the first transmission rope 11 as a synchronous belt and the second transmission rope 12 as a steel wire rope as an example, and the cases where the first transmission rope is a steel wire rope and the second transmission rope is a synchronous belt are similar and will not be described again.
The safety gear can be a mechanical safety gear, and is connected with a steel wire rope. The steel wire rope is connected with a transmission piece, and the transmission piece is connected with the first transmission rope.
As another example of the protection mechanism for preventing the car from moving, see fig. 3, the upper edge of the support plate 8 is connected with an upper side plate 15, the transmission member 16 is provided with a slot 17 for being clamped on the upper side plate 15, and the bottom of the transmission member 16 is connected with the first transmission rope 11. The transmission piece 16 and the first transmission rope 11 move synchronously, and the transmission piece 16 moves along the upper side plate 15 through the clamping groove 17. Further, a first guide wheel 18 is fixed to the upper side plate 15, and the wire rope 7 is wound around the first guide wheel 18. A fixing plate 19 is connected between the door panel connecting plate 14 and the first driving rope 11.
As another embodiment of the car movement prevention protection mechanism, referring to fig. 1 and 2, the transmission member includes a guide plate 20, a slider 23, and a guide block 22, the guide plate 20 is fixed on the support plate 8, the guide plate 20 is provided with a guide groove 21, the guide groove 21 includes a straight line groove and an arc groove, when the two door panel connection plates 14 move back to back, the two door panel connection plates pass through the straight line groove and the arc groove in sequence, the guide block 22 is provided with a slider 23 movement groove, the top and bottom of the guide block 22 are connected to the first transmission rope 11 and the second transmission rope 12, respectively, and the end of the steel wire rope 7 is fixed on the slider 23. When the motor drives the first transmission rope 11 to move, the guide block 22 is driven to move synchronously, the guide block 22 drives the sliding block 23 to move in the guide groove 21, and the door panel connecting plate 14 is moved.
Furthermore, a second guide wheel 24 is fixed on the support plate 8, and the steel wire rope 7 bypasses the second guide wheel 24.
As another embodiment of the car movement prevention protection mechanism, a guide rail 25 is fixed on the support plate 8 below the second driving rope 12, more than two rollers 26 are connected to the bottom of the door panel connecting plate 14, a rotating shaft 27 fixed on the door panel connecting plate 14 is arranged in the middle of the roller 26, the rollers 26 contact with both sides of the guide rail 25, and the contact surface between the roller 26 and the guide rail 25 is arc-shaped.
As a further use of the above embodiment, the support plate 8 of the protection mechanism for preventing the car from moving is fixed on the door head of the elevator, the safety gear 6 is fixed on the guide rails on the two side walls, when the elevator is opened, the safety gear 6 is caused to tightly lock the guide rails of the elevator car, so that the elevator stops moving, and the safe operation of the elevator is ensured.
The safety gear in the invention can also be an electronic safety gear, a door lock sensor and a position sensor are required to be arranged outside the elevator car, and when the elevator arrives at the floor, the electronic safety gear acts. The door lock sensor and the position sensor can be capacitance sensors, inductive sensors, photoelectric proximity sensors and the like, as long as the door lock sensor and the position sensor can sense a floor arrival signal and transmit the signal to the electronic safety tongs, and the electronic safety tongs can also be electromagnetic type/oil cylinder type, as long as the action can be met. The safety gear has the function that when the elevator arrives at a target floor and stops at the floor, the door is ready to be opened and closed, the door lock sensor and the position sensor give out signals to cause the safety gear to tightly lock the elevator car guide rail, the safety gear is provided with the travel limit switch or the UKS switch, and the safety gear is used for driving the switch to act when the safety gear acts, so that the action of a safety loop is realized, and the protection effect is achieved. The safety loop is that each safety component of the elevator is provided with a safety switch, all the safety switches are connected in series to control a safety relay. And only under the condition that all the safety switches are switched on, the safety relays are closed, the elevator can be powered on to operate, otherwise, the elevator stops operating immediately, so that the safety operation of the elevator is guaranteed.
A use state diagram of an embodiment of the present invention can be seen in fig. 4.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A protection mechanism for preventing a car from moving is characterized by comprising a driving device and safety tongs, wherein the driving device comprises a supporting plate, a driving wheel and a driven wheel are fixed on the supporting plate, a first transmission rope is sleeved outside the driving wheel and the driven wheel, and the driving wheel is connected with a motor; the support plate is provided with two driving wheels, a second driving rope is sleeved outside the driving wheels and is parallel to the first driving rope, two door panel connecting plates are fixed on the second driving rope, one door panel connecting plate is connected with the upper side of the second driving rope, the other door panel connecting plate is connected with the lower side of the second driving rope, and one door panel connecting plate is connected with the first driving rope; the safety gear and the driving device are provided with an intermediate connecting device, and the driving device drives the safety gear to be locked or unlocked through the intermediate connecting device.
2. The car movement prevention protection mechanism of claim 1, wherein the safety gear is a mechanical safety gear, and the safety gear is connected to a wire rope; the steel wire rope is connected with a transmission piece, and the transmission piece is connected with the first transmission rope.
3. The car movement prevention protection mechanism as claimed in claim 2, wherein an upper side plate is connected to an upper edge of the support plate, a slot for being clamped on the upper side plate is formed in the transmission member, and the first transmission rope is connected to a bottom of the transmission member.
4. The car movement prevention protection mechanism of claim 3 wherein a first guide wheel is fixed to the upper side plate and the wire rope passes around the first guide wheel.
5. The car movement prevention protection mechanism of claim 1 wherein a fixing plate is connected between the door panel connection plate and the first drive rope.
6. The car movement prevention protection mechanism of claim 2 wherein the drive member includes a guide plate, a slider and a guide block, the guide plate is fixed to the support plate, the guide plate has a guide slot, the guide slot includes a straight slot and an arc slot, the guide block has a slider movement slot, the top and bottom of the guide block are connected to the first and second drive ropes, respectively, and the ends of the wire rope are fixed to the slider.
7. The car movement prevention protection mechanism of claim 6 wherein a second guide wheel is fixed to the fulcrum, the cable passing around the second guide wheel.
8. The car movement prevention protection mechanism as claimed in claim 1, wherein a guide rail is fixed on the support plate below the second transmission rope, more than two rollers are connected to the bottom of the door panel connecting plate, a rotating shaft fixed on the door panel connecting plate is arranged in the middle of the rollers, the rollers contact with two sides of the guide rail, and the contact surface between the rollers and the guide rail is arc-shaped.
9. The car movement prevention protection mechanism of claim 1 wherein the first drive rope is a timing belt or a wire rope and the second drive rope is a timing belt or a wire rope.
10. The car movement prevention protection mechanism according to claim 1, characterized in that the safety gear is an electronic safety gear, a door lock sensor and a position sensor are arranged on the outside of the elevator car, and a travel limit switch or a UKS switch is arranged on the safety gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359748.6A CN111532919A (en) | 2020-04-30 | 2020-04-30 | Prevent protection mechanism that car removed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359748.6A CN111532919A (en) | 2020-04-30 | 2020-04-30 | Prevent protection mechanism that car removed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111532919A true CN111532919A (en) | 2020-08-14 |
Family
ID=71973397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010359748.6A Pending CN111532919A (en) | 2020-04-30 | 2020-04-30 | Prevent protection mechanism that car removed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111532919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682918A (en) * | 2021-08-26 | 2021-11-23 | 日立电梯（中国）有限公司 | Elevator safety device and control method thereof |
-
2020
- 2020-04-30 CN CN202010359748.6A patent/CN111532919A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682918A (en) * | 2021-08-26 | 2021-11-23 | 日立电梯（中国）有限公司 | Elevator safety device and control method thereof |
| CN113682918B (en) * | 2021-08-26 | 2023-03-07 | 日立电梯（中国）有限公司 | Elevator safety device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200814 |