CN117550456A - Unexpected protection device that removes of car - Google Patents

Abstract

The application relates to the technical field of elevator car safety protection, in particular to an unexpected car movement protection device, which comprises side plates, a fixing plate, an upward braking mechanism, a downward braking mechanism, a transmission part and an induction part, wherein the side plates are at least provided with two, and two ends of the fixing plate are respectively fixedly connected with one side plate; the upper brake stopping mechanism and the lower brake stopping mechanism are respectively rotatably arranged on the side plates, and one ends of the upper brake stopping mechanism and the lower brake stopping mechanism are respectively abutted with the fixed plates; the steel wire rope is positioned between the fixed plate and the upward brake stopping mechanism and/or between the downward brake stopping mechanisms; one end of the transmission component is rotationally connected with the side plate, one end of the transmission component is abutted with the upward brake stopping mechanism and/or the downward brake stopping mechanism, and one end of the sensing component is abutted to the transmission component. By adopting the scheme, the problem that the braking speed of the existing car is slower due to longer deceleration stroke of the brake of the existing car unexpected movement protection device can be solved.

Description

Unexpected protection device that removes of car

Technical Field

The application relates to the technical field of elevator car safety protection, in particular to an unexpected car movement protection device.

Background

An elevator is one of the indispensable running devices of a high-rise building, and one critical premise of elevator running is safety, and elevator safe running has become one of the topics of general attention.

The accidental movement of the car is mainly reflected in the movement of the car in the unlocking area and in the door opening state. During the running process of the elevator car, any element in the driving system and the host machine fails or the elevator car is accidentally moved due to misoperation, so that serious threat is formed to passengers. For this, an unexpected movement protection device should be provided, and by means of setting a car or an operating system, an unexpected movement fault is effectively prevented, and the risk of elevator accidents is reduced. The main targets of the device operation are as follows: when the elevator car door is opened, the protection device is started, and when the car door is closed, the protection device can continue to run until the elevator stops. The device has stronger preventive and rescue functions, the former can avoid accidental movement of the car, and the latter can stop the car in time when the car moves accidentally. The technical principle of the device is as follows: when the elevator door is opened, passengers enter the elevator car, at the moment, the function of the device is started, and the elevator car is reliably fixed on the elevator guide rail in a mode of sensor signal control, so that the elevator car is prevented from moving accidentally. After the car door is closed, the sensor resets the car protection device by a starting signal, and then the car continues to run, so that the car door and the protection device can synchronously run, and the effect of real-time protection is achieved. However, in the existing car unexpected movement protection device, the braking stroke of the brake is longer, so that the braking speed is slower, the speed of the sensor transmitted to the car driving component is also reduced, the car driving component is easy to stop working in time, and the probability of moving the car is larger.

Disclosure of Invention

In order to improve the unexpected protection device that removes of current car, the deceleration stroke of its stopper is longer, leads to its braking speed slower, and the speed that the inductor transmitted to car drive part also reduces thereupon, leads to car drive part to fail in time to stop work easily, and the probability that the car takes place to remove is great problem, this application provides an unexpected protection device that removes of car.

The application provides an unexpected protection device that removes of car adopts following technical scheme:

the unexpected car movement protection device is used for clamping a steel wire rope and comprises side plates, a fixed plate, an upward braking mechanism, a downward braking mechanism, a transmission part and an induction part, wherein at least two side plates are arranged, and two ends of the fixed plate are fixedly connected with one side plate respectively; the upper brake stopping mechanism and the lower brake stopping mechanism are respectively rotatably arranged on the side plates, and one ends of the upper brake stopping mechanism and the lower brake stopping mechanism are respectively abutted with the fixed plates; the steel wire rope is positioned between the fixed plate and the upward brake stopping mechanism and/or between the downward brake stopping mechanism; one end of the transmission component is rotationally connected with the side plate, one end of the transmission component is abutted with the upward braking mechanism and/or the downward braking mechanism, and one end of the sensing component is abutted to the transmission component.

By adopting the technical scheme, when the car moves upwards accidentally, the transmission part acts and pushes the upward brake stopping mechanism to rotate, so that one end of the upward brake stopping mechanism is abutted against the fixed plate, the steel wire rope is clamped, and in the process that the steel wire rope is clamped, when the downward brake stopping mechanism is abutted against the steel wire rope, one end of the downward brake stopping mechanism is rapidly pulled to be abutted against the steel wire rope under the action of downward movement pulling force of the steel wire rope; meanwhile, when the transmission part pushes the upward brake stopping mechanism, the transmission part is abutted with the sensing part, the sensing part transmits an electric signal to the control system, and the control system controls the car driving part to stop working and the car to stop moving. When the car moves down accidentally, the transmission part acts and pushes the down brake stopping mechanism to rotate, so that one end of the down brake stopping mechanism is abutted against the fixed plate, the steel wire rope is clamped, and when the down brake stopping mechanism is abutted against the steel wire rope in the process of clamping the steel wire rope, one end of the down brake stopping mechanism is rapidly pulled to be abutted against the steel wire rope under the action of upward movement and pulling force of the steel wire rope; meanwhile, when the transmission part pushes the downlink brake to stop the mechanism, the transmission part is abutted with the sensing part, the sensing part transmits an electric signal to the control system, and the control system controls the car driving part to stop working and the car to stop moving. By adopting the scheme, the steel wire rope is braked by utilizing the swinging mode, and the upward braking stopping mechanism and the downward braking stopping mechanism clamp the steel wire rope, so that the driving force transmitted by the driving part can be received, and the traction force of the steel wire rope can be received, thereby not only accelerating the speed of the upward braking stopping mechanism, the downward braking stopping mechanism and the steel wire rope, but also improving the signal rate of the sensing part for sensing the unexpected movement of the car, and timely feeding back the signal to the control system.

Optionally, the uplink brake mechanism includes a first brake component, a first support component and a second support component, where the first support component and the second support component are rotatably installed on the side plates respectively, one ends of the first support component and the second support component are rotatably connected with the first brake component respectively, and one end of the second support component is abutted with the transmission component; the first supporting component is sleeved with a first elastic component, one end of the first elastic component is fixedly connected with the first supporting component, and the other end of the first elastic component is fixedly connected with the side plate; the first elastic member has a certain elastic stroke.

By adopting the technical scheme, when the car moves upwards accidentally, the upward brake stopping mechanism works, the transmission part pushes the second supporting part to rotate, the second supporting part drives the first brake stopping part to swing, the first brake stopping part drives the first supporting part to rotate, the first brake stopping part is abutted against the steel wire rope, and meanwhile, the first supporting part rotates and outputs torque to the first elastic part, and the first elastic part is stressed to deform; when the fault is relieved, the transmission part withdraws the thrust, the first supporting part rotates under the reaction force of the first elastic part, the first supporting part drives the first stopping part to separate from the steel wire rope, and the second supporting part resets, so that the rapid upward stopping of the lift car and the automatic resetting after the fault is relieved are realized.

Optionally, the first supporting component comprises a first fixed shaft and a first supporting rod, and two ends of the first fixed shaft are respectively connected with the side plate in a rotating way; one end of the first supporting rod penetrates through the first fixed shaft and is connected with the first fixed shaft in a sliding manner, and the other end of the first supporting rod is connected with the first brake component in a rotating manner; the first elastic component is sleeved on the first fixed shaft.

By adopting the technical scheme, the first fixed shaft is matched with the first supporting rod, and the second supporting part is jointly assisted to drive the first braking part to swing to tightly prop against the steel wire rope, so that braking is realized, and the braking stability can be improved; in addition, by arranging the first elastic component on the first fixed shaft, the relatively gentle swing speed can be kept, and the smoothness of the first brake component during swing reset can be improved.

Optionally, the second supporting component comprises a second fixed shaft and a second supporting rod, and two ends of the second fixed shaft are respectively connected with the side plate in a rotating way; one end of the second supporting rod penetrates through the second fixed shaft and is connected with the second fixed shaft in a sliding manner, and the other end of the second supporting rod is connected with the first brake component in a rotating manner; the first support rod and the second support rod are respectively sleeved with a second elastic component, and the second elastic component has a certain elastic stroke.

By adopting the technical scheme, the transmission part pushes the second fixed shaft to rotate, the second fixed shaft drives the second supporting rod to rotate, the second supporting rod drives the first braking part to swing, braking is realized, and in the swinging process, the upward steel wire rope applies tension to the first braking part, so that the swinging speed of the first braking part along the axial directions of the first fixed shaft and the second fixed shaft is increased, and the braking stroke of the steel wire rope is shortened; in addition, the elastic travel of the second elastic component can buffer the impact force of the first braking component in the process of braking the steel wire rope, and the service lives of the first braking component and the steel wire rope are prolonged.

Optionally, the downlink braking mechanism includes a second braking component, a third supporting component and a fourth supporting component, where the third supporting component and the fourth supporting component are respectively rotatably installed on the side plate, one ends of the third supporting component and the fourth supporting component are respectively rotatably connected with the second braking component, and one end of the third supporting component is abutted with the transmission component; a third elastic component is sleeved on the fourth supporting component, one end of the third elastic component is fixedly connected with the side plate, and the other end of the third elastic component is fixedly connected with the fourth supporting component; the third elastic member has a certain elastic stroke.

By adopting the technical scheme, when the car moves down accidentally, the down brake stopping mechanism works, the transmission part pushes the third supporting part to rotate, the third supporting part drives the second brake stopping part to swing, the second brake stopping part drives the fourth supporting part to rotate, the second brake stopping part is abutted against the steel wire rope, and meanwhile, the fourth supporting part rotates and outputs torque to the third elastic part, and the third elastic part is stressed to deform; when the fault is relieved, the transmission part withdraws the thrust, the fourth supporting part rotates under the reaction force of the third elastic part, the fourth supporting part drives the second braking part to separate from the steel wire rope, and the third supporting part resets, so that the rapid braking of the descending of the car and the automatic resetting after the fault is relieved are realized.

Optionally, the third supporting component comprises a third fixed shaft and a third supporting rod, and two ends of the third fixed shaft are respectively connected with the side plate in a rotating way; one end of the third supporting rod penetrates through the third fixed shaft and is connected with the third fixed shaft in a sliding manner; the third support rod is sleeved with a fourth elastic component, and the fourth elastic component has a certain elastic stroke.

By adopting the technical scheme, the transmission part pushes the third fixed shaft to rotate, the third fixed shaft drives the third supporting rod to rotate, the third supporting rod drives the second braking part to swing, braking is realized, and in the swinging process, the descending steel wire rope applies tension to the second braking part, so that the swinging speed of the second braking part along the axial direction of the third fixed shaft is increased, and the braking stroke of the steel wire rope is shortened; in addition, the elastic travel of the fourth elastic component can buffer the impact force generated in the process of stopping the steel wire rope by the second stopping component, and the service lives of the second stopping component and the steel wire rope are prolonged.

Optionally, the fourth supporting component includes a fourth fixed shaft and a fourth supporting rod, two ends of the fourth fixed shaft are respectively connected with the side plate in a rotating way, and the third elastic component is sleeved on the fourth fixed shaft; one end of the fourth supporting rod penetrates through the fourth fixed shaft and is connected with the fourth fixed shaft in a sliding manner; the fourth elastic component is also sleeved on the fourth supporting rod.

By adopting the technical scheme, the fourth fixed shaft is matched with the fourth supporting rod, and the third supporting part is jointly assisted to drive the second braking part to swing to tightly prop against the steel wire rope, so that braking is realized, and the braking stability can be improved; in addition, by arranging the third elastic member on the fourth fixed shaft, a relatively gentle swing speed can be maintained, and the smoothness of the second brake member when the second brake member swings and returns can be improved.

Optionally, a fixed friction plate is arranged on the fixed plate, the fixed friction plate is fixedly connected with the fixed plate, the first braking component is abutted with the fixed friction plate, and/or the second braking component is abutted with the fixed friction plate.

By adopting the technical scheme, the steel wire rope is braked by utilizing the characteristics of wear resistance, high temperature resistance and corrosion resistance of the friction plate, the braking stroke can be shortened, and the stability and durability of integral braking can be prolonged.

Optionally, the first braking component comprises a first friction plate, the first friction plate is respectively connected with one ends of the first support rod and the second support rod in a rotating way, and the first friction plate is abutted with the fixed friction plate; the second braking part comprises a second friction plate, the second friction plate is respectively connected with one ends of the third supporting rod and the fourth supporting rod in a rotating mode, and the second friction plate is in butt joint with the fixed friction plate.

Through adopting above-mentioned technical scheme, fixed friction disc and first friction disc cooperation to/or second friction disc cooperation realizes wire rope's stopping, and the cooperation between friction disc and the friction disc is stopped the effect better.

Optionally, reinforcing parts are respectively arranged on the fixed friction plate, the first friction plate and the second friction plate, and the steel wire ropes are matched with the reinforcing parts.

By adopting the technical scheme, the force increasing part can increase the stress area between the steel wire rope and the fixed friction plate as well as between the first friction plate and the second friction plate, thereby increasing the friction force and reducing the braking stroke.

In summary, the present application has the following beneficial effects:

1. through setting up the mechanism of stopping that stops, the mechanism of stopping that stops down, drive unit and response part, utilize the wobbling mode to stop wire rope, go up the mechanism of stopping and stop down in the mechanism clamping wire rope that stops, not only can receive the thrust of drive unit transmission, can also receive wire rope's traction force, so, not only accelerated the speed that the mechanism of stopping and stopping down and wire rope support tightly, still improve the signal rate that response part sensed the unexpected removal of car, timely feedback signal to control system.

2. Through setting up first stopping part, first supporting part, second supporting part and first elastomeric element, can realize the car and go up quick stopping and the automatic re-setting after the trouble is released.

3. The first fixed shaft, the first supporting rod and the first elastic component are arranged, the first fixed shaft is matched with the first supporting rod, the second supporting component is jointly assisted to drive the first braking component to swing to tightly prop against the steel wire rope, braking is achieved, and braking stability can be improved; in addition, by arranging the first elastic component on the first fixed shaft, the relatively gentle swing speed can be kept, and the smoothness of the first brake component during swing reset can be improved.

4. Through setting up the second elastic component, can cushion the impact force of first stopping part stopping wire rope in-process, extension first stopping part and wire rope's life.

5. Through setting up second stop part, third supporting part, fourth supporting part and third elastomeric element, can realize the car and stop fast of descending and the automatic re-setting after the trouble is released.

6. By providing the friction plate, the braking stroke can be shortened, and the stability and durability of the overall braking can be prolonged.

7. By arranging the reinforcement part, the stress area between the steel wire rope and the fixed friction plate as well as the stress area between the first friction plate and the stress area between the second friction plate can be increased, so that the friction force is increased, and the braking stroke is reduced.

Drawings

Fig. 1 is a view showing the overall structure of an unexpected car movement protection device according to the present embodiment;

fig. 2 is a view showing the structure of an upward and downward braking mechanism in the car unexpected movement protection device according to the present embodiment;

fig. 3 is an exploded view showing a second elastic member of the car accidental movement protection device according to the present embodiment;

fig. 4 is a view showing the construction of first and second brake parts of the car unexpected movement protection device according to the present embodiment;

fig. 5 is a partial structural view of the car unexpected movement protection device according to the present embodiment;

fig. 6 is a side view of fig. 5.

Reference numerals illustrate:

1. a side plate; 11. a wire rope; 2. a fixing plate; 21. fixing the friction plate; 22. a force increasing section; 3. an upward brake mechanism; 31. a first brake member; 32. a first support member; 320. a first fixed shaft; 321. a first support bar; 33. a second support member; 330. a second fixed shaft; 331. a second support bar; 4. a downlink brake mechanism; 41. a second brake member; 42. a third support member; 420. a third fixed shaft; 421. a third support bar; 43. a fourth supporting member; 430. a fourth fixed shaft; 431. a fourth support bar; 5. a transmission member; 51. a cam; 510. a concave portion; 511. a convex portion; 52. a protruding rod; 6. an induction member; 61. an induction end; 7. a first elastic member; 8. a second elastic member; 81. a first gasket; 82. a second gasket; 83. a first belleville spring; 9. a third elastic member; 10. a fourth elastic member; 100. a third gasket; 101. a fourth gasket; 102. and a second belleville spring.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses an unexpected car movement protection device, see fig. 1 and 2, comprising a side plate 1, a fixed plate 2, an upward braking mechanism 3, a downward braking mechanism 4, a transmission part 5 and an induction part 6, wherein the side plate 1 is at least provided with two pieces, and two ends of the fixed plate 2 are respectively fixedly connected with one side plate 1; the upward brake stopping mechanism 3 and the downward brake stopping mechanism 4 are respectively rotatably arranged on the side plate 1, and one ends of the upward brake stopping mechanism 3 and the downward brake stopping mechanism 4 are respectively abutted with the fixed plate 2; the steel wire rope 11 is positioned between the fixed plate 2 and the upward brake stopping mechanism 3 and/or between the downward brake stopping mechanism 4; one end of the transmission part 5 is rotationally connected with the side plate 1, one end of the transmission part 5 is abutted with the upward brake stopping mechanism 3 and/or the downward brake stopping mechanism 4, and one end of the sensing part 6 is close to the transmission part 5.

Referring to fig. 2 and 3, specifically, the transmission part 5 includes a cam 51, a cam 51 rotation shaft and an elevator lifting mechanism, the cam 51 rotation shaft is rotatably mounted on the side plate 1, the cam 51 is fixedly sleeved on the cam 51 rotation shaft, the cam 51 has a concave portion 510, and one end of the sensing part 6 is located in the concave portion 510 close to the concave portion 510 or the sensing end 61 of the sensing part 6; the driving end of the elevator lifting mechanism is fixedly connected with the rotating shaft of the cam 51; the elevator lifting mechanism is used for driving the cam 51 to rotate; in the embodiment, the elevator lifting mechanism is an upper beam upper mounting type lifting mechanism; in other embodiments, the elevator lift mechanism may be an upper beam down mounted lift mechanism, a lower beam lift mechanism, a freestanding lift mechanism, or the like.

The upper beam upper mounting type lifting mechanism comprises an upper beam upper mounting type lifting component, an electric trigger device and two safety tongs, each safety tongs is provided with a side plate 1, a lifting rod and a movable wedge block respectively, one end of the lifting rod is fixedly connected with a rotating shaft, the rotating shaft penetrates through and is rotatably arranged on the side plate 1, and the other end of the lifting rod is abutted against the wedge block; the upper beam upper mounting type lifting part comprises a short rod, a long rod, a linkage rod and a driving spring, wherein the short rod, the long rod, the linkage rod and the driving spring are positioned outside the safety tongs, the rotation shaft on one safety tongs is fixedly connected with the long rod, one end of the long rod and one end of the short rod are respectively and rotatably connected with two ends of the linkage rod, the other end of the short rod is fixedly connected with the rotation shaft on the other safety tongs, the other end of the long rod is connected with an electric triggering device, the driving spring is sleeved on the linkage rod, one end of the driving spring is fixedly connected with the linkage rod, and the other end of the driving spring is fixedly connected with the safety tongs connected with the long rod. After the elevator runs at overspeed, the elevator control device controls the electromagnet to lose electricity, the electromagnet is demagnetized, and the armature block is separated from the electromagnet; meanwhile, the original compressed driving spring pushes the linkage rod to move under the action of restoring force, so that the long rod and the short rod respectively rotate by taking the installed rotating shafts as the centers, and the lifting rod is driven to lift the wedge blocks, and the safety tongs act; specifically, the rotation shaft is fixedly connected with the cam 51.

Referring to fig. 2 and 3, the upward brake mechanism 3 includes a first brake member 31, a first support member 32, and a second support member 33, the first support member 32 and the second support member 33 are rotatably mounted on the side plate 1, one ends of the first support member 32 and the second support member 33 are rotatably connected with the first brake member 31, respectively, and one end of the second support member 33 abuts against the cam 51; specifically, a cam 52 is welded to the cam 51, and the cam 52 abuts against one end of the second support member 33.

Referring to fig. 2 and 3, the sensing part 6 includes a sensing switch body and a sensing head slidably mounted on the sensing switch body; specifically, the inductive switch is a magnetic induction switch, and the inductive head is an inductive end 61; one end of the inductive head is located within its recess 510 proximate to its recess 510 or the inductive end 61 of the inductive component 6; the inductive switch is used for sending a signal of accidental movement to the control system, so that the control system controls the car driving part to stop working according to the signal, and emergency braking is realized; in this embodiment, the magnetic induction switch is a UKS switch.

Referring to fig. 1 and 2, the first support member 32 includes a first fixing shaft 320 and a first support bar 321, both ends of the first fixing shaft 320 being rotatably connected with the side plate 1, respectively; one end of the first supporting rod 321 is penetrated through the first fixed shaft 320 and is slidably connected with the first fixed shaft 320, and the other end is rotatably connected with the first brake member 31.

Referring to fig. 1 and 2, further, the first fixing shaft 320 is sleeved with a first elastic member 7, one end of the first elastic member 7 is fixedly connected with the first supporting member 32, and the other end is fixedly connected with the side plate 1; the first elastic member 7 has a certain elastic stroke.

Referring to fig. 1 and 2, specifically, the first elastic member 7 is specifically a first torsion spring, one end of which is fixedly connected with the side plate 1, and the other end of which is fixedly connected with the first fixed shaft 320; the first torsion spring serves to provide a reaction force to the first stationary shaft 320.

Referring to fig. 1 and 2, the second supporting member 33 includes a second fixing shaft 330 and a second supporting rod 331, both ends of the second fixing shaft 330 are respectively rotatably connected with the side plate 1, and one end of the second fixing shaft 330 is abutted with the protruding rod 52 on the cam 51; one end of the second supporting rod 331 is inserted into the second fixing shaft 330 and slidingly connected with the second fixing shaft 330, and the other end is rotatably connected with the first brake member 31.

Referring to fig. 2 and 3, further, the first support rod 321 and the second support rod 331 are respectively sleeved with a second elastic member 8, and the second elastic member 8 has a certain elastic stroke.

Referring to fig. 2 and 3, specifically, the second elastic member 8 is specifically a first washer 81, a second washer 82, and a plurality of first belleville springs 83, where the first washer 81 is sleeved on the first support rod 321, and/or is sleeved on the second support rod 331; and the first gasket 81 is respectively screw-coupled with the first support rod 321 and the second support rod 331; the second gasket 82 is sleeved on the first supporting rod 321 and/or the second supporting rod 331; and the second gasket 82 is slidably connected with the first support rod 321 and the second support rod 331, respectively; one end of the second washer 82 abuts the first fixed shaft 320 and/or abuts the second fixed shaft 330; the first belleville springs 83 are sleeved between the first gasket 81 and the second gasket 82; by rotating the first washers 81, the plurality of first belleville springs 83 are pushed to slide, so that the pressure among the plurality of first belleville springs 83 is regulated, and the plurality of first belleville springs 83 keep a good buffering effect; in addition, by utilizing the high load capacity, the large deformation capacity, the high rigidity and the resilience of the belleville springs, stable supporting and resilience effects can be provided, and the service life can be prolonged.

Referring to fig. 1 and 2, the downlink brake mechanism 4 includes a second brake member 41, a third support member 42 and a fourth support member 43, the third support member 42 and the fourth support member 43 are rotatably mounted on the side plate 1, one ends of the third support member 42 and the fourth support member 43 are rotatably connected with the second brake member 41, respectively, and one end of the third support member 42 abuts against the cam 51; specifically, one end of the third support member 42 abuts against a boss 52 on the cam 51.

Referring to fig. 1 and 2, the third supporting member 42 includes a third fixing shaft 420 and a third supporting rod 421, both ends of the third fixing shaft 420 are respectively rotatably connected with the side plate 1, and one end of the third fixing shaft 420 is abutted with the protruding rod 52 on the cam 51; one end of the third supporting rod 421 is inserted through the third fixing shaft 420 and slidingly connected with the third fixing shaft 420.

Referring to fig. 1 and 2, the fourth supporting member 43 includes a fourth fixing shaft 430 and a fourth supporting rod 431, both ends of the fourth fixing shaft 430 being rotatably connected with the side plate 1, respectively; one end of the fourth support rod 431 is inserted into the fourth fixed shaft 430 and slidingly connected with the fourth fixed shaft 430.

Referring to fig. 5, further, a third elastic member 9 is sleeved on the fourth fixing shaft 430, one end of the third elastic member 9 is fixedly connected with the side plate 1, and the other end is fixedly connected with the fourth supporting member 43; the third elastic member 9 has a certain elastic stroke.

Referring to fig. 5, specifically, the third elastic member 9 is specifically a second torsion spring, one end of which is fixedly connected with the side plate 1, and the other end of which is fixedly connected with the fourth fixed shaft 430; the second torsion spring serves to provide a reaction force to the fourth fixed shaft 430.

Referring to fig. 6, the third support bar 421 and the fourth support bar 431 are respectively sleeved with a fourth elastic member 10, and the fourth elastic member 10 is sleeved with the fourth elastic member 10, and has a certain elastic stroke.

Referring to fig. 6, specifically, the fourth elastic member 10 is specifically a third washer 100, a fourth washer 101, and a plurality of second belleville springs 102, where the third washer 100 is sleeved on the third support rod 421 and/or is sleeved on the fourth support rod 431; and the third gasket 100 is respectively screw-coupled with the third support bar 421 and the fourth support bar 431; the fourth gasket 101 is sleeved on the third supporting rod 421 and/or the fourth supporting rod 431; the fourth washer 101 is slidably connected with the third support rod 421 and the fourth support rod 431, and one end of the fourth washer 101 is abutted with the third fixed shaft 420 and/or is abutted with the fourth fixed shaft 430; a plurality of second belleville springs 102 are sleeved between the third gasket 100 and the fourth gasket 101; by rotating the third washer 100, the plurality of second belleville springs 102 are pushed to slide, so that the pressure between the plurality of second belleville springs 102 is regulated, and the plurality of second belleville springs 102 maintain a good buffering effect.

Referring to fig. 6, a fixed friction plate 21 is provided on the fixed plate 2, the fixed friction plate 21 is fixedly connected with the fixed plate 2, the first brake block member 31 abuts against the fixed friction plate 21, and/or the second brake block member 41 abuts against the fixed friction plate 21.

Referring to fig. 6, the first brake member 31 includes a first friction plate rotatably connected to one ends of the first and second support rods 321 and 331, respectively, and the first friction plate abuts against the fixed friction plate 21.

Referring to fig. 6, the second brake block 41 includes a second friction plate rotatably connected to one ends of the third and fourth support bars 421 and 431, respectively, and abutted against the fixed friction plate 21.

Referring to fig. 6, in addition, the friction plate has wear-resistant, high temperature-resistant and corrosion-resistant properties, and the braking stroke can be shortened and the stability and durability of the overall braking can be prolonged by braking the wire rope 11 using the properties of the friction plate.

Referring to fig. 4, further, reinforcing parts 22 are respectively provided on the fixed friction plate 21, the first friction plate and the second friction plate, and the wire ropes 11 are adapted to the reinforcing parts 22.

Referring to fig. 4, specifically, the reinforcement 22 is a linear groove, which is adapted to the wire rope 11, and which can increase the contact area between the wire rope 11 and the friction plate, thereby increasing the friction force and shortening the stroke of the brake wire rope 11.

The working principle of the unexpected car movement protection device is as follows:

when the car moves upwards accidentally, the transmission part 5 acts, the rotating shaft drives the cam 51 to rotate, the convex rod 52 on the cam 51 pushes the upward brake stopping mechanism 3 to rotate, the second fixed shaft 330 rotates under the pushing of the cam 51, the second fixed shaft 330 drives the second supporting rod 331 to rotate, the second supporting rod 331 drives the first brake stopping part 31 to swing, the first friction plate is abutted with the steel wire rope 11 and the fixed friction plate 21, and the steel wire rope 11 is abutted under the action of the first friction plate and the fixed friction plate 21; simultaneously, the first fixed shaft 320 rotates under the drive of the first friction plate, the first elastic component 7 is stressed and deformed, and the second elastic components 8 on the first supporting rod 321 and the second supporting rod 331 are stressed and deformed; when the cam 51 rotates, the convex part 511 pushes the sensing end 61 of the sensing part 6, and the sensing switch sends an electric signal to the control system; the control system controls the car driving part to stop working and the car to stop moving.

When the car moves down accidentally, the transmission part 5 acts, the rotating shaft drives the cam 51 to rotate, the convex rod 52 on the cam 51 pushes the downward brake stopping mechanism 4 to rotate, the third fixed shaft 420 is pushed by the cam 51 to rotate, the third fixed shaft 420 drives the second support rod 331 to rotate, the third support rod 421 drives the second brake stopping part 41 to swing, the second friction plate is abutted with the steel wire rope 11 and the fixed friction plate 21, and the steel wire rope 11 is abutted under the action of the second friction plate and the fixed friction plate 21; meanwhile, the fourth fixed shaft 430 rotates under the drive of the second friction plate, the third elastic component 9 is stressed and deformed, and the fourth elastic components 10 on the third supporting rod 421 and the fourth supporting rod 431 are stressed and deformed; when the cam 51 rotates, the convex part 511 pushes the sensing end 61 of the sensing part 6, and the sensing switch sends an electric signal to the control system; the control system controls the car driving part to stop working and the car to stop moving.

By adopting the scheme, the steel wire rope is braked by utilizing the swinging mode, and the upward braking stopping mechanism and the downward braking stopping mechanism clamp the steel wire rope, so that the driving force transmitted by the driving part can be received, and the traction force of the steel wire rope can be received, thereby not only accelerating the speed of the upward braking stopping mechanism, the downward braking stopping mechanism and the steel wire rope, but also improving the signal rate of the sensing part for sensing the unexpected movement of the car, and timely feeding back the signal to the control system.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.

Claims (10)

1. An unexpected protection device that removes of car for press from both sides tight wire rope (11), its characterized in that: the automatic braking device comprises side plates (1), a fixed plate (2), an uplink braking mechanism (3), a downlink braking mechanism (4), a transmission part (5) and an induction part (6), wherein the side plates (1) are at least provided with two pieces, and two ends of the fixed plate (2) are fixedly connected with one side plate (1) respectively; the upward brake stopping mechanism (3) and the downward brake stopping mechanism (4) are respectively and rotatably arranged on the side plate (1), and one ends of the upward brake stopping mechanism (3) and the downward brake stopping mechanism (4) are respectively abutted with the fixed plate (2); the steel wire rope (11) is positioned between the fixed plate (2) and the upward braking mechanism (3) and/or between the downward braking mechanisms (4); one end of the transmission part (5) is rotationally connected with the side plate (1), one end of the transmission part (5) is abutted with the upward braking stopping mechanism (3) and/or the downward braking stopping mechanism (4) is abutted, and one end of the sensing part (6) is close to the transmission part (5).

2. The unexpected car movement protection device according to claim 1, wherein: the uplink brake stopping mechanism (3) comprises a first brake stopping component (31), a first supporting component (32) and a second supporting component (33), wherein the first supporting component (32) and the second supporting component (33) are respectively rotatably installed on the side plate (1), one ends of the first supporting component (32) and the second supporting component (33) are respectively rotatably connected with the first brake stopping component (31), and one end of the second supporting component (33) is in butt joint with the transmission component (5); the first supporting component (32) is sleeved with a first elastic component (7), one end of the first elastic component (7) is fixedly connected with the first supporting component (32), and the other end of the first elastic component is fixedly connected with the side plate (1); the first elastic member (7) has a certain elastic stroke.

3. The unexpected car movement protection device according to claim 2, wherein: the first supporting component (32) comprises a first fixed shaft (320) and a first supporting rod (321), and two ends of the first fixed shaft (320) are respectively connected with the side plate (1) in a rotating way; one end of the first supporting rod (321) penetrates through the first fixed shaft (320) and is connected with the first fixed shaft (320) in a sliding manner, and the other end of the first supporting rod is connected with the first brake component (31) in a rotating manner; the first elastic component (7) is sleeved on the first fixed shaft (320).

4. The unexpected car movement protection device according to claim 3, wherein: the second supporting part (33) comprises a second fixed shaft (330) and a second supporting rod (331), and two ends of the second fixed shaft (330) are respectively connected with the side plate (1) in a rotating way; one end of the second supporting rod (331) is penetrated through the second fixed shaft (330), is connected with the second fixed shaft (330) in a sliding manner, and the other end of the second supporting rod is rotationally connected with the first brake component (31); the first support rod (321) and the second support rod (331) are respectively sleeved with a second elastic component (8), and the second elastic component (8) has a certain elastic stroke.

5. The unexpected car movement protection device according to claim 2, wherein: the descending brake mechanism (4) comprises a second brake part (41), a third support part (42) and a fourth support part (43), wherein the third support part (42) and the fourth support part (43) are respectively rotatably installed on the side plate (1), one ends of the third support part (42) and the fourth support part (43) are respectively rotatably connected with the second brake part (41), and one end of the third support part (42) is in butt joint with the transmission part (5); a third elastic component (9) is sleeved on the fourth supporting component (43), one end of the third elastic component (9) is fixedly connected with the side plate (1), and the other end of the third elastic component is fixedly connected with the fourth supporting component (43); the third elastic member (9) has a certain elastic stroke.

6. The unexpected car movement protection device according to claim 5, wherein: the third supporting component (42) comprises a third fixed shaft (420) and a third supporting rod (421), and two ends of the third fixed shaft (420) are respectively connected with the side plate (1) in a rotating way; one end of the third supporting rod (421) is penetrated through the third fixed shaft (420) and is connected with the third fixed shaft (420) in a sliding way; the third support rod (421) is sleeved with a fourth elastic component (10), and the fourth elastic component (10) has a certain elastic stroke.

7. The car unexpected movement protection device according to claim 6, wherein: the fourth supporting component (43) comprises a fourth fixed shaft (430) and a fourth supporting rod (431), two ends of the fourth fixed shaft (430) are respectively connected with the side plate (1) in a rotating mode, and the third elastic component (9) is sleeved on the fourth fixed shaft (430); one end of the fourth supporting rod (431) penetrates through the fourth fixed shaft (430) and is connected with the fourth fixed shaft (430) in a sliding mode; the fourth supporting rod (431) is also sleeved with the fourth elastic component (10).

8. The unexpected car movement protection device according to claim 5, wherein: the fixed plate (2) is provided with a fixed friction plate (21), the fixed friction plate (21) is fixedly connected with the fixed plate (2), the first braking component (31) is abutted with the fixed friction plate (21), and/or the second braking component (41) is abutted with the fixed friction plate (21).

9. The car unexpected movement protection device according to claim 8, wherein: the first brake component (31) comprises a first friction plate, the first friction plate is respectively in rotary connection with one ends of a first supporting rod (321) and a second supporting rod (331), and the first friction plate is abutted with the fixed friction plate (21); the second braking component (41) comprises a second friction plate, the second friction plate is respectively connected with one ends of a third supporting rod (421) and a fourth supporting rod (431) in a rotating mode, and the second friction plate is abutted to the fixed friction plate (21).

10. The unexpected car movement protection device according to claim 9, wherein: reinforcing parts (22) are respectively arranged on the fixed friction plate (21), the first friction plate and the second friction plate, and the steel wire ropes (11) are matched with the reinforcing parts (22).