CN217102578U - Elevator car safety tongs and experimental display device of overspeed governor linkage - Google Patents
Elevator car safety tongs and experimental display device of overspeed governor linkage Download PDFInfo
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- CN217102578U CN217102578U CN202220956929.1U CN202220956929U CN217102578U CN 217102578 U CN217102578 U CN 217102578U CN 202220956929 U CN202220956929 U CN 202220956929U CN 217102578 U CN217102578 U CN 217102578U
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Abstract
The utility model discloses a linkage test display device of elevator car safety tongs and a speed limiter, which comprises a derrick and a derrick enclosure, the derrick is connected with a car model in a sliding way through a guide rail, the bottom of the derrick is provided with a buffer, the car model is provided with a collision bow, the left side and the right side of the car model are provided with safety tongs, the safety tongs are provided with an electric switch, the top of the derrick is provided with an electric hoist and a speed limiter through a fixed frame, the output end of the electric hoist is connected with a magnetic sucker for sucking the top end of the car model through a rope, the overspeed governor pass through wire rope with the pull rod of safety tongs is connected, the utility model provides a platform device of linkage test between each safety part under the whole fracture conditions of simulation elevator car wire rope, greatly reduced the experimental cost and the experimental operation degree of difficulty, made huge contribution for the safety of elevator and the popularization of safety knowledge.
Description
Technical Field
The utility model belongs to the technical field of the safe braking test technique of technique elevator car simulation and specifically relates to an elevator car safety tongs and experimental display device of overspeed governor linkage.
Background
As is known, an elevator has a cage which is sized and configured to facilitate the passage of passengers in and out of the elevator or the loading and unloading of goods, and safety components on the elevator are mainly brakes (band-type brakes), speed limiters, buffers, safety tongs, etc.;
conventional elevator is inconvenient to be used for carrying out safety show for the public at any time because factor such as bulky, installation environment is difficult for carrying out the safety test, and the actual conditions in each city also have the difference moreover, if carry out safety test show to on-the-spot elevator and can have various troubles.
Therefore, a platform device for simulating an elevator car safety test needs to be designed to simulate linkage protection among safety parts under the condition that all hoisting ropes of the elevator car are broken, the platform device is used for public display, and the public can know that the car can be reliably stopped even if all steel wire ropes are broken, so that the platform device is very important for popularization of elevator safety knowledge.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problems existing in the prior art in the background technology, a display device for linkage test of elevator car safety tongs and speed limiters is provided.
The utility model provides a technical scheme that its technical problem adopted is: a lift car safety gear and speed limiter linkage test display device comprises a derrick and a derrick enclosure, wherein a car model is connected in the derrick in a sliding mode through a guide rail, a buffer is arranged at the bottom of the derrick, a collision bow is arranged on the car model, safety gears are arranged on the left side and the right side of the car model, and an electric switch is arranged on each safety gear; the top of the derrick is provided with an electric hoist and a speed limiter through a fixed frame, the output end of the electric hoist is connected with a magnetic sucker for sucking the top end of the car model through a rope, and the speed limiter is connected with a linkage mechanism of the safety tongs through a steel wire rope; the derrick is characterized in that a control cabinet is further arranged at the bottom of the derrick, a button group is arranged on the control cabinet, and the button group is electrically connected with an electric hoist, a magnetic sucker and the like.
The utility model discloses a technical scheme that electric block and magnetic force sucking disc replace the hauler, the whole cracked condition of haulage rope is conveniently simulated to the linkage condition between each safety part of convenient test, the operation of automatically controlled cabinet of cooperation makes elevator safety simulation test more convenient, can show elevator safety knowledge high-efficiently clearly, promotes and popularizes better.
Further, accurate in order to guarantee the speed reaction of overspeed governor, the derrick bottom still is provided with the tight pulley that rises that is used for rising tight overspeed governor wire rope, the tight pulley that rises passes through the fixed plate and installs on the derrick, wire rope turns into the rotary motion of overspeed governor with the vertical motion of elevator. When the rotation speed of the speed governor exceeds a limit value, the speed governor firstly enables the overspeed switch to act to cut off the power supply of the elevator control loop, and the electromagnetic brake is subjected to power-off braking. If the brake is out of order, at the moment, if the elevator goes down, the speed limiter blocks the steel wire rope, the safety tongs are forced to act, the elevator is forced to stop on the guide rail, in order to prevent the electric fuse machine from continuing to rotate, the electric switch of the safety tongs is specially arranged, and when the safety tongs act, the switch acts and is cut off to control the elevator to return. Neither the governor nor the safety gear alone can accomplish the above task. The above tasks are accomplished by their cooperation.
Further, the derrick encloses to be provided with still with hit bow route complex switch module, hit the bow and follow car model up-and-down motion the time collision and correspond switch module and trigger the action instruction and guarantee elevator operation safety.
Further, the switch assembly of the present invention comprises a limit switch and a force switch disposed at the upper end and the lower end of the route of the bow.
Further, the linkage mechanism of the present invention has the connection relationship described as: the rope end of the speed limiter pulls the wedge block of the right safety gear through a lever to enable the right safety gear to act; meanwhile, the action of the rope end of the speed limiter pulls the wedge block of the left safety gear through the connecting rod system, so that the left safety gear acts. In the action process of the connecting rod, the electric safety device is actuated through the pulling plate on the lever, and the electric safety loop is cut off to stop the motor.
The test method comprises the following steps:
s1, the main switch in the control cabinet is closed and power is supplied;
s2, turning the test switch to OFF position, pressing the platform down button, and when the magnetic sucker contacts with the cage model, releasing the platform down button;
s3: when a sucker action button is pressed, a green indicator light is on, and a sucker is attracted with the lift car;
s4: pressing a 'platform ascending' button to lift the lift car to an upper limit position;
s5: turning a test switch to an 'ON' position, pressing a 'sucker releasing' button, turning the test switch to an 'OFF' position immediately, and enabling a car model safety gear to act and a car to stop;
s6: pressing a 'platform descending' button, and when the magnetic sucker is contacted with the lift car, loosening the 'platform descending' button;
s7: pressing the 'sucking disc action' button, and sucking the sucking disc and the lift car;
s8: pressing a 'platform ascending' button to lift the lift car to an upper limit position;
s9: repeating the steps S2-S8 after the test is finished, and pressing a 'platform descending' button to descend the car model to the buffer after the test is finished;
s10: pressing a 'sucker releasing' button, then pressing a 'platform ascending' button, and lifting the magnetic sucker to an initial position;
s11: when the car model is on the buffer and the magnetic sucker is at the initial position, the main switch in the control cabinet is switched off, and the test is finished;
attention is paid to the following points:
1. pressing down an emergency stop button under the condition that the motor cannot stop rotating, and when the lift car does not reach the limit position, please not press down a suction disc release button;
2. the governor and the safety gear can reliably act due to some reasons of operation, machinery or electricity in the running process of the elevator, and the forced switch can force the governor to act.
The utility model has the advantages that: the utility model discloses a platform device of linkage test between each safety part under the whole fracture condition of simulation elevator car towline reduces large-scale elevator equipment to reasonable experimental scope, greatly reduced the experimental cost and the experimental operation degree of difficulty, cooperation electric block and magnetic force sucking disc, and test work is high-efficient convenient, and the whole set of equipment after the size reduces conveniently transports to the safety education base in each city moreover, makes huge contribution for elevator safety knowledge popularization work.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of another view angle in the present invention;
fig. 3 is a partial enlarged view of the position a in the present invention.
In the figure: 1. the system comprises a derrick, 2 steel wire ropes, 3 a car model, 4 a buffer, 5 a collision bow, 6 a safety gear, 7 a fixed frame, 8 an electric hoist, 9 a speed limiter, 10 a rope, 11 a magnetic sucker, 12 a control cabinet, 13 a tension pulley, 14 a fixed plate, 15 a limit switch and 16 a forcing switch.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The embodiment of the invention relates to an elevator car safety gear and speed limiter linkage test display device shown in fig. 1-3, which comprises a derrick 1 and a derrick enclosure, wherein a car model 3 is connected in the derrick 1 in a sliding manner through a guide rail, a buffer 4 is arranged at the bottom of the derrick 1, a collision bow 5 is arranged on the car model 3, safety gears 6 are arranged on the left side and the right side of the car model 3, and an electric switch is arranged on the safety gears 6;
an electric hoist 8 and a speed limiter 9 are mounted at the top of the derrick 1 through a fixed frame 7, the output end of the electric hoist 8 is connected with a magnetic sucker 11 for sucking the top end of the car model 3 through a rope 10, and the speed limiter 9 is connected with a linkage mechanism of the safety gear 6 through a steel wire rope 2;
the derrick is characterized in that a control cabinet 12 is further arranged at the bottom of the derrick 1, a button group is arranged on the control cabinet 12, and the button group is electrically connected with the electric hoist 8, the magnetic sucker 11 and the like.
Wherein, 1 bottom of derrick still is provided with the tight pulley 13 that rises that is used for rising tight overspeed governor 9 wire rope 2, tight pulley 13 that rises is installed through fixed plate 14 on derrick 1, the derrick encloses to be provided with still with hit bow 5 route complex switch module, hit bow 5 and correspond switch module trigger action instruction and guarantee elevator operation safety when following car model 3 up-and-down motion. The switch assembly comprises limit switches 15 arranged at the upper end and the lower end of a running line of the impact bow 5 and a forced switch 16 arranged in the middle.
A steel wire rope 2 of the speed limiter 9 pulls a wedge block of the right safety gear 6 through a lever to enable the right safety gear 6 to act; meanwhile, the steel wire rope 2 acts to pull a wedge block of the left safety gear 6 through a connecting rod system to enable the left safety gear 6 to act, the electric safety device acts through a pulling plate on a lever in the action process of the connecting rod, and an electric safety loop is cut off to enable the motor to stop running.
The working principle is as follows: the wire rope converts the vertical motion of the elevator into a rotational motion of the governor. When the rotation speed of the speed governor exceeds a limit value, the speed governor enables an overspeed switch to act to cut off a power supply of an elevator control loop, and an electromagnetic brake is subjected to power-off braking. If the brake is out of order, at the moment, if the elevator goes down, the speed limiter blocks the steel wire rope, the safety tongs are forced to act, the elevator is forced to stop on the guide rail, in order to prevent the electric fuse machine from continuing to rotate, the electric switch of the safety tongs is specially arranged, and when the safety tongs act, the switch acts and is cut off to control the elevator to return. Neither the governor nor the safety gear alone can accomplish the above task. The above tasks are accomplished by their cooperation.
The utility model discloses a technical scheme that electric block and magnetic force sucking disc replace the hauler, the whole cracked condition of haulage rope is conveniently simulated to the linkage condition between each safety part of convenient test, the operation of automatically controlled cabinet of cooperation makes elevator safety simulation test more convenient, can show elevator safety knowledge high-efficiently clearly, promotes and popularizes better.
The test method comprises the following steps:
s1, the main switch in the control cabinet is closed and power is supplied;
s2, turning the test switch to OFF position, pressing the platform down button, and when the magnetic sucker contacts with the cage model, releasing the platform down button;
s3: when a sucker action button is pressed, a green indicator light is on, and a sucker is attracted with the lift car;
s4: pressing a 'platform ascending' button to lift the lift car to an upper limit position;
s5: turning a test switch to an 'ON' position, pressing a 'sucker releasing' button, turning the test switch to an 'OFF' position immediately, and enabling a car model safety gear to act and a car to stop;
s6: pressing a 'platform descending' button, and when the magnetic sucker is contacted with the lift car, loosening the 'platform descending' button;
s7: pressing the 'sucking disc action' button, and sucking the sucking disc and the lift car;
s8: pressing a 'platform ascending' button to lift the lift car to an upper limit position;
s9: repeating the steps S2-S8 after the test is finished, and pressing a 'platform descending' button to descend the car model to the buffer after the test is finished;
s10: pressing a 'sucker releasing' button, then pressing a 'platform ascending' button, and lifting the magnetic sucker to an initial position;
s11: and when the car model is on the buffer and the magnetic sucker is at the initial position, the main switch in the control cabinet is switched off, and the test is finished.
Attention is paid to the following points:
1. pressing down an emergency stop button under the condition that the motor cannot stop rotating, and when the lift car does not reach the limit position, please not press down a suction disc release button;
2. the governor and the safety gear can reliably act due to some reasons of operation, machinery or electricity in the running process of the elevator, and the forced switch can force the governor to act.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides an elevator car safety tongs and experimental display device of overspeed governor linkage which characterized in that: the derrick comprises a derrick (1) and a derrick enclosure, wherein a car model (3) is connected in the derrick (1) in a sliding mode through a guide rail, a buffer (4) is arranged at the bottom of the derrick (1), a collision bow (5) is arranged on the car model (3), safety tongs (6) are arranged on the left side and the right side of the car model (3), and an electric switch is arranged on the safety tongs (6); electric block (8) and overspeed governor (9) are installed through mount (7) in the top of derrick (1), the output of electric block (8) is connected with through rope (10) and is used for holding magnetic chuck (11) on car model (3) top, overspeed governor (9) pass through wire rope (2) with the link gear of safety tongs (6) is connected.
2. The elevator car safety gear and speed limiter linkage test display device of claim 1, wherein: the anti-collision device is characterized in that a tension wheel (13) used for tensioning a steel wire rope (2) of the speed governor (9) is further arranged at the bottom of the derrick (1), and the tension wheel (13) is installed on the derrick (1) through a fixing plate (14).
3. The elevator car safety gear and speed governor linkage test display device of claim 1, characterized in that: and the derrick enclosure is also provided with a switch component matched with the running route of the impact bow (5).
4. The elevator car safety gear and speed limiter linkage test display device of claim 3, wherein: the switch assembly comprises limit switches (15) arranged at the upper end and the lower end of a running route of the impact bow (5) and a forced switch (16) in the middle.
5. The elevator car safety gear and speed limiter linkage test display device of claim 1, wherein: the derrick is characterized in that a control cabinet (12) is further arranged at the bottom of the derrick (1), a button group is arranged on the control cabinet (12), and the button group is electrically connected with the electric hoist (8) and the magnetic sucker (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220956929.1U CN217102578U (en) | 2022-04-22 | 2022-04-22 | Elevator car safety tongs and experimental display device of overspeed governor linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220956929.1U CN217102578U (en) | 2022-04-22 | 2022-04-22 | Elevator car safety tongs and experimental display device of overspeed governor linkage |
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| Publication Number | Publication Date |
|---|---|
| CN217102578U true CN217102578U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220956929.1U Active CN217102578U (en) | 2022-04-22 | 2022-04-22 | Elevator car safety tongs and experimental display device of overspeed governor linkage |
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| CN (1) | CN217102578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117303154A (en) * | 2023-11-29 | 2023-12-29 | 菱王电梯有限公司 | Elevator safety gear linkage test device, system and safety gear test method |
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2022
- 2022-04-22 CN CN202220956929.1U patent/CN217102578U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117303154A (en) * | 2023-11-29 | 2023-12-29 | 菱王电梯有限公司 | Elevator safety gear linkage test device, system and safety gear test method |
| CN117303154B (en) * | 2023-11-29 | 2024-02-20 | 菱王电梯有限公司 | Elevator safety gear linkage test device, system and safety gear test method |
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Lei Inventor after: Li Defeng Inventor after: Zhou You Inventor after: Cao Ming Inventor after: Xie Bin Inventor after: Yin Weiqiang Inventor after: Pan Jinguo Inventor before: Liu Lei Inventor before: Li Defeng Inventor before: Zhou You Inventor before: Cao Mian Inventor before: Xie Bin Inventor before: Yin Weiqiang Inventor before: Pan Jinguo |