Safety device for preventing lift car from accidentally moving for passenger elevator

Abstract

The invention provides a safety device for preventing an elevator car from accidentally moving for a passenger elevator. The safety device for preventing accidental movement of the lift car for the passenger elevator comprises the lift car; the two sets of installation frames are installed at the positions, close to the front face and the back face, of the two sides of the lift car correspondingly, two rotating parts are rotationally connected to one side of each installation frame, two auxiliary assemblies are arranged on the two sides of the lift car correspondingly, and each auxiliary assembly comprises two fixing structures, a rack and a plurality of butt joint structures. And the two fixing structures are used for mounting racks. According to the safety device for preventing the lift car from accidentally moving for the passenger elevator, through the design, when passengers get on and off after the lift car of the passenger elevator stops, the bottom of the lift car can be supported, stability is improved, and shaking caused by vertical movement of the lift car due to stress is avoided; and the safety coefficient of passengers getting on and off the passenger elevator car can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator car safety, and particularly to a safety device for preventing accidental movement of a car in a passenger elevator. Background Art

[0002] An elevator refers to a permanent transportation device that serves several specific floors in a building, and its car moves on at least two rigid tracks perpendicular to the horizontal plane or with an inclination angle less than 15° to the plumb line. There are also step-type ones, where the tread plates are installed on the tracks and run continuously, commonly known as escalators or moving sidewalks, which are fixed lifting devices serving specified floors.

[0003] At present, the safety devices commonly used in elevator cars are those that operate when the elevator has an overspeed phenomenon. However, when the elevator is at the leveling position and the braking force of the main machine brake is insufficient or the traction force of the main machine is insufficient, resulting in the elevator moving slowly at a low speed, the existing safety devices cannot respond in time and will not produce corresponding actions to decelerate and stop the elevator, posing a certain danger.

[0004] When the existing elevator safety device is used for passengers to get on and off the elevator after the car stops, the car is prone to move up and down by a certain distance under force, which easily causes passengers to fall due to instability and reduces the safety factor when passengers get on and off the car.

[0005] Therefore, it is necessary to provide a safety device for preventing accidental movement of a car in a passenger elevator to solve the above technical problems. Summary of the Invention

[0006] The present invention provides a safety device for preventing accidental movement of a car in a passenger elevator, which solves the problem that the existing elevator safety device is prone to move under force when passengers get on and off the elevator after the car stops, reducing the safety factor of passengers getting on and off the elevator car.

[0007] To solve the above technical problems, the safety device for preventing accidental movement of a car in a passenger elevator provided by the present invention includes: a car;

[0008] Two sets of mounting frames, the two sets of mounting frames are respectively installed on both sides of the car near the front and the back. One side of each mounting frame is rotatably connected to two rotating components. Two auxiliary components are provided on both sides of the car. The auxiliary component includes two fixing structures, a rack and a plurality of docking structures. The two fixing structures are used for installing the rack, and the docking structure is used for fixing the fixing structure in the corresponding position. Contact sensors are installed on both sides of the car at the front position through mounting bases;

[0009] Four rotating buckles, the four rotating buckles are respectively fixedly connected to the bottom of the car near the four corners. A folding frame is rotatably connected to the bottom of each rotating buckle. A mounting plate is fixedly connected to the bottom of the folding frame near one side. A safety tooth block is fixedly connected to the other side of the mounting plate. The bottom of the car near the four corners is rotatably connected to a first telescopic member through a movable buckle. The telescopic ends of the first telescopic members are rotatably connected to the folding frame through a rotating head. A connection buckle is installed on the top of the car through a fixed base;

[0010] Two mounting frames are in a group. The two in each group of mounting frames are respectively near the top and bottom of both sides of the car. The rotating member is a gear, and the rack is meshed with the rotating member. The fixing structure wraps the mounting frame, so that the rotating member can be meshed with the rack. A contact block is installed on the elevator door at a position corresponding to the contact sensor. The contact sensor and the contact block cooperate with each other to provide signals for the car to stop and start, so as to cooperate with the telescopic member controller to control its operation.

[0011] Preferably, stabilizing components are installed on both sides of the car. The stabilizing components include a slider structure and a limiting structure. The slider structure is slidably connected to the outer surface of the limiting structure;

[0012] The top end of the limiting structure is connected to the top and bottom of the elevator shaft.

[0013] Preferably, a mounting platform is installed on the top of the car. An equipment box with a sealing cover is installed on the bottom of the car. Safety structure bases are installed on the top and both sides of the car;

[0014] The safety structure base is used to install structures that assist the safety of the car.

[0015] Preferably, two connection bases are installed on the bottom of the car. Auxiliary devices are installed on the bottoms of the connection bases;

[0016] The auxiliary device can be a lighting lamp or a monitor for monitoring the running state of the car.

[0017] Preferably, a buffer assembly is installed on the bottom of the car. The buffer assembly includes a mounting structure, a fixed disk, a buffer component, a mounting disk, an arc buffer structure and a contact plate. The mounting structure is used to mount the arc buffer structure. The fixed disk and the mounting disk are used to connect the arc buffer structure and the bottom of the car;

[0018] The contact plate is connected to the bottom of the arc buffer structure through bolts. The buffer component is a shock-absorbing spring with a damper. The arc buffer structure is made of steel plate material.

[0019] Preferably, a support base is installed on the top of the car, and a monitoring component is installed on the top of the support base.

[0020] Preferably, oil storage frames are installed at both sides of the top of the car, and discharge frames are fixedly connected to the bottoms of the oil storage frames;

[0021] The positions of the oil storage frames and the installation frames correspond to each other.

[0022] Preferably, two sealing strips are installed inside the discharge frame, and a smearing component is rotatably connected inside the discharge frame;

[0023] The smearing component is meshed and connected with one of the rotating components, and the sealing strip seals without affecting the rotation of the smearing component.

[0024] Preferably, a sealing plate is installed on the top of the oil storage frame, and a sealing structure is installed on one side of the oil storage frame;

[0025] The sealing structure is used to increase the sealing performance at the connection between the second telescopic component and the oil storage frame.

[0026] Preferably, a second telescopic component is installed on one side of the oil storage frame, and a push plate is installed at the telescopic end of the second telescopic component.

[0027] Compared with the related art, the safety device for preventing accidental movement of the car of the passenger elevator provided by the present invention has the following beneficial effects:

[0028] The present invention provides a safety device for preventing accidental movement of the car of a passenger elevator. In order to increase the stability of the passenger elevator car when boarding and alighting passengers when stopped, a folding frame is installed at each position near the four corners of the bottom of the car through a rotating buckle, and then a mounting plate with safety teeth is fixed to the folding frame. The auxiliary component is composed of a fixing structure, a rack and a docking structure. After the safety teeth are engaged with the rack in the auxiliary component, a triangular support can be formed among the rack, the safety teeth and the car to support the car when boarding and alighting passengers after stopping. The folding frame adjusts the angle through the telescoping of the first telescopic component, so that the safety teeth are engaged with and separated from the rack. Rotating components are installed on both sides of the car through installation frames respectively. By the meshing connection between the rotating components and the rack, the stability can be increased during the up and down operation of the car. Through this design, when the passenger elevator car stops to board and alight passengers, a supporting effect can be exerted on the bottom of the car, increasing the stability and avoiding the car from moving up and down under force and causing shaking, which is beneficial to improving the safety factor of the passenger elevator car when boarding and alighting passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the first embodiment of the safety device for preventing accidental movement of the car of the passenger elevator provided by the present invention;

[0030] Figure 2 This is a schematic structural diagram of the buffer component provided by the present invention;

[0031] Figure 3 Provided by the present invention Figure 2 An enlarged view of the position A shown;

[0032] Figure 4 This is a schematic structural diagram of the monitoring component provided by the present invention;

[0033] Figure 5 Provided by the present invention Figure 4 An enlarged view of the position B shown;

[0034] Figure 6 This is a schematic structural diagram of the second embodiment of the safety device for preventing accidental movement of the car of the passenger elevator provided by the present invention;

[0035] Figure 7 This is a sectional structural view of the car provided by the present invention;

[0036] Figure 8 Provided by the present invention Figure 7 An enlarged view of the position C shown.

[0037] Reference numerals in the figure: 1, car; 2, auxiliary component; 201, fixed structure; 202, rack; 203, docking structure; 3, contact sensor; 4, mounting base; 5, safety structure base; 6, mounting table; 7, connecting buckle; 8, fixed base; 9, stabilizing component; 901, slider structure; 902, limiting structure; 10, buffer component; 101, mounting structure; 102, fixed disk; 103, buffer member; 104, mounting disk; 105, arc-shaped buffer structure; 106, contact plate; 11, auxiliary device; 12, connecting base; 13, sealing cover; 14, equipment frame; 15, movable head; 16, safety tooth block; 17, mounting plate; 18, folding frame; 19, rotating head; 20, rotating buckle; 21, movable buckle; 22, sealing strip; 23, monitoring component; 24, support base; 25, mounting frame; 26, rotating component; 27, oil storage frame; 28, sealing structure; 29, second telescopic component; 30, push plate; 31, coating component; 32, discharge frame; 33, first telescopic component; 34, sealing plate. Detailed implementation manners

[0038] The present invention will be further described below in conjunction with the drawings and embodiments.

[0039] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 Figure 5 , wherein, Figure 1Schematic structural diagram of the first embodiment of the safety device for preventing accidental movement of the car of a passenger elevator provided by the present invention; Figure 2 Schematic structural diagram of the buffer assembly provided by the present invention; Figure 3 Provided by the present invention Figure 2 Enlarged view of the position A shown;

[0040] Figure 4 Schematic structural diagram of the monitoring component provided by the present invention; Figure 5 Provided by the present invention Figure 4 Enlarged view of the position B shown. The safety device for preventing accidental movement of the car of a passenger elevator includes: car 1;

[0041] Two groups of mounting frames 25, the two groups of mounting frames 25 are respectively installed on both sides of the car 1 near the front and back positions. Two rotating components 26 are rotatably connected to one side of each mounting frame 25. Two auxiliary components 2 are provided on both sides of the car 1. The auxiliary component 2 includes two fixing structures 201, a rack 202 and a plurality of docking structures 203. The two fixing structures 201 are used to install the rack 202, and the docking structure 203 is used to fix the fixing structure 201 in the corresponding position. Contact sensors 3 are installed on both sides of the car 1 at the front positions through mounting bases 4;

[0042] Four rotating buckles 20, the four rotating buckles 20 are respectively fixedly connected to the bottom of the car 1 near the four corners. A folding frame 18 is rotatably connected to the bottom of each rotating buckle 20. A mounting plate 17 is fixedly connected to the bottom of the folding frame 18 near one side. A safety tooth block 16 is fixedly connected to the other side of the mounting plate 17. First telescopic components 33 are rotatably connected to the bottom of the car 1 near the four corners through movable buckles 21. The telescopic ends of the first telescopic components 33 are rotatably connected to the folding frame 18 through rotating heads 19. A connecting buckle 7 is installed on the top of the car 1 through a fixed base 8;

[0043] Two mounting frames 25 are in a group. The two in each group of mounting frames 25 are respectively near the top and bottom positions on both sides of the car 1. The rotating component 26 is a gear, and the rack 202 is meshed with the rotating component 26. The fixing structure 201 wraps the mounting frame 25, so that the rotating component 26 can be meshed with the rack 202. Contact blocks are installed on the elevator door at positions corresponding to the contact sensors 3. The contact sensors 3 and the contact blocks cooperate with each other to provide signals for the car 1 to stop and start, so as to cooperate with the telescopic component controller to control its operation. The side of the bottom end of the folding frame 18 near the auxiliary component 2 is an inclined surface, which is convenient for the installation of the mounting plate 17. The positions of the rotating buckles 20 and the mounting frames 25 correspond to each other. The first telescopic component 33 can be a telescopic rod or a hydraulic rod.

[0044] Stabilizing components 9 are installed on both sides of the car 1. The stabilizing component 9 includes a slider structure 901 and a limiting structure 902. The slider structure 901 is slidably connected to the outer surface of the limiting structure 902;

[0045] The top of the limiting structure 902 is connected to the top and bottom of the elevator shaft.

[0046] An installation platform 6 is installed on the top of the car 1. An equipment frame 14 with a sealing cover 13 is installed at the bottom of the car 1. Safety structure bases 5 are installed on the top and both sides of the car 1;

[0047] The safety structure base 5 is used to install structures that assist in the safety of the car 1. Power switches and controllers for controlling the operation of the equipment can be installed inside the equipment frame 14. The installation platform 6 is used to install corresponding structures.

[0048] Two connection bases 12 are installed at the bottom of the car 1. Auxiliary devices 11 are installed at the bottoms of the connection bases 12;

[0049] The auxiliary device 11 can be a lighting lamp or a monitor for monitoring the operating state of the car 1.

[0050] A buffer assembly 10 is installed at the bottom of the car 1. The buffer assembly 10 includes an installation structure 101, a fixed disk 102, a buffer component 103, an installation disk 104, an arc-shaped buffer structure 105, and a contact plate 106. The installation structure 101 is used to install the arc-shaped buffer structure 105. The fixed disk 102 and the installation disk 104 are used to connect the arc-shaped buffer structure 105 to the bottom of the car 1;

[0051] The contact plate 106 is connected to the bottom of the arc-shaped buffer structure 105 by bolts. The buffer component 103 is a shock-absorbing spring with a damper. The arc-shaped buffer structure 105 is made of steel plate material.

[0052] A support base 24 is installed on the top of the car 1. A monitoring component 23 is installed on the top of the support base 24;

[0053] The monitoring component 23 is used to monitor whether the car 1 is deviated.

[0054] The working principle of the safety device for preventing accidental movement of the car for a passenger elevator provided by the present invention is as follows:

[0055] At the positions near the four corners at the bottom of the car 1, a folding frame 18 is installed through a rotating buckle 20. Then, the mounting plate 17 with a safety tooth block 16 is fixed to the folding frame 18. The auxiliary component 2 is composed of a fixing structure 201, a rack 202, and a docking structure 203. After the safety tooth block 16 is engaged with the rack 202 in the auxiliary component 2, a triangular support can be formed among the rack 202, the safety tooth block 16, and the car 1 to support the car when passengers get on and off after it stops. The folding frame 18 adjusts its angle through the expansion and contraction of the first telescopic component 33, so that the safety tooth block 16 is engaged with and separated from the rack 202. Rotating components 26 are installed on both sides of the car 1 through mounting frames 25 respectively. Through the meshing connection between the rotating components 26 and the rack 202, the stability can be increased during the up and down operation of the car 1. During actual use, first, the four auxiliary components 2 are fixed on both sides of the elevator shaft, and the safety tooth block 16 is made to correspond to the position of the rack 202 in the auxiliary component 2 to facilitate the docking of the two. At the same time, the rotating components 26 and the rack 202 are engaged and connected well. After the elevator car 1 stops, the elevator door will open. During this process, it is judged whether the elevator car 1 has stopped stably through the signal transmitted by the contact sensor 3. After the car 1 stops stably, only need to start the four first telescopic components 33 to push the four folding frames 18 to rotate, then the four safety tooth blocks 16 can be respectively inserted into the interior of the auxiliary component 2, and the safety tooth block 16 is docked with the rack 202, and a stable safety structure can be provided for the car 1 through this triangular support. After the passengers get on and off the car 1, when the elevator door closes, the contact sensor 3 transmits the signal that the car 1 needs to move. During this process, the first telescopic component 33 starts to drive the safety tooth block 16 on the folding frame 18 to separate from the rack 202, and then the car 1 can move up and down normally.

[0056] Compared with the related technologies, the safety device for preventing accidental movement of the car of the passenger elevator provided by the present invention has the following beneficial effects:

[0057] In order to increase the stability of the passenger elevator car when passengers get on and off when it stops, a folding frame 18 is installed at the bottom of the car 1 near the four corners through a rotating buckle 20, and then the mounting plate 17 with the safety tooth block 16 is fixed to the folding frame 18, and the auxiliary component 2 is composed of a fixing structure 201, a rack 202 and a docking structure 203. After the safety tooth block 16 is engaged with the rack 202 in the auxiliary component 2, a triangular support can be formed between the rack 202, the safety tooth block 16 and the car 1, which is used to support the car for getting on and off after stopping, and the folding frame 1 8 is an adjustment of the angle by telescoping the first telescopic member 33, so that the safety tooth block 16 is engaged with and separated from the rack 202. Rotating members 26 are respectively installed on both sides of the car 1 through the mounting frames 25. The meshing connection between the rotating members 26 and the rack 202 can increase the stability of the car 1 during the up and down movement. This design can support the bottom of the car 1 when passengers get on and off after the passenger elevator car 1 stops, thereby increasing stability and preventing the car 1 from shaking due to the up and down movement caused by the force, which is beneficial to improving the safety factor of the passenger elevator car 1 when passengers get on and off.

[0058] Second embodiment

[0059] Please refer to Figures 6 - 7 - Figure 8 , Figure 6 A schematic structural diagram of a second embodiment of a safety device for preventing accidental movement of a car for a passenger elevator provided by the present invention; Figure 7 A structural cross-sectional view of a car is provided for the present invention; Figure 8 The present invention provides Figure 7 The enlarged view of C is shown; Based on the safety device for preventing the car from accidentally moving provided by the first embodiment of the present application, the second embodiment of the present application proposes another safety device for preventing the car from accidentally moving provided by the passenger elevator. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0060] Specifically, the safety device for preventing accidental movement of a car for a passenger elevator provided in the second embodiment of the present application is different in that an oil storage frame 27 is installed at both sides of the top of the car 1, and a discharge frame 32 is fixedly connected to the bottom of the oil storage frame 27;

[0061] The positions of the oil storage frame 27 and the mounting frame 25 correspond to each other, and the bottom end of the discharge frame 32 is inserted into the interior of the mounting frame 25 .

[0062] Two sealing strips 22 are installed inside the discharge frame 32, and a smearing component 31 is rotatably connected inside the discharge frame 32;

[0063] The smearing member 31 is meshed and connected with one of the rotating members 26. The sealing strip 22 seals without affecting the rotation of the smearing member 31, allowing the lubricating oil to only be discharged from the smearing member 31. The connection between the discharge frame 32 and the oil storage frame 27 is penetrated.

[0064] A sealing plate 34 is installed at the top of the oil storage frame 27, and a sealing structure 28 is installed on one side of the oil storage frame 27;

[0065] The sealing structure 28 is used to increase the sealing performance at the connection between the second telescopic member 29 and the oil storage frame 27.

[0066] A second telescopic member 29 is installed on one side of the oil storage frame 27, and a push plate 30 is installed at the telescopic end of the second telescopic member 29;

[0067] The push plate 30 can push the lubricating oil close to the discharge frame 32.

[0068] Compared with the related art, the safety device for preventing accidental movement of the car provided by the present invention has the following beneficial effects:

[0069] In order to increase the lubrication effect between the rack 202 and the rotating member 26, an oil storage frame 27 with a discharge frame 32 is installed at a position corresponding to the top of the car 1 and the installation frame 25. Then, a rotatable smearing member 31 is installed inside the discharge frame 32. At the same time, the inside of the discharge frame 32 is sealed by two sealing strips 22, allowing the lubricating oil to only be discharged through the rotation of the smearing member 31. Inside the oil storage frame 27, the second telescopic member 29 provides a thrust to push the push plate 30 to move, so that the lubricating grease can be pushed towards the discharge frame 32 and discharged smoothly from the discharge frame 32. The smearing member 31 is meshed and connected with the rotating member 26, and the rotating member 26 provides power to drive the rotation of the smearing member 31, so that the lubricating oil can always be smeared on the outer surface of the rotating member 26 in a small amount. Moreover, due to the meshing connection between the rotating member 26 and the rack 202, the lubricating oil is smeared on the outer surface of each rotating member 26. Through this design, the function of automatically replenishing the lubricating oil can be realized, reducing the wear of the rack 202 and the rotating member 206, and being beneficial to improving the running stability between the two.

[0070] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A safety device for preventing accidental movement of a car for a passenger elevator, characterized in that: include: Car; Two groups of mounting frames, the two groups of mounting frames are respectively mounted on both sides of the car near the front and back, one side of each mounting frame is rotatably connected to two rotating parts, two auxiliary components are arranged on both sides of the car, the auxiliary components include two fixed structures, a rack and a plurality of docking structures, the two fixed structures are used to install the racks, the docking structures are used to fix the fixed structures at corresponding positions, and contact sensors are installed at the front positions of both sides of the car through mounting bases; Four rotating buckles are respectively fixedly connected to the bottom of the car near the four corners, the bottom of each rotating buckle is rotatably connected to a folding frame, the bottom of the folding frame near one side is fixedly connected to a mounting plate, the other side of the mounting plate is fixedly connected to a safety tooth block, the bottom of the car near the four corners is rotatably connected to the first telescopic component through a movable buckle, the telescopic ends of the first telescopic component are rotatably connected to the folding frame through a rotating head, and the top of the car is installed with a connecting buckle through a fixed base.

2. The safety device for preventing accidental movement of a car for a passenger elevator according to claim 1, characterized in that: Both sides of the car are equipped with stabilizing components, which include a slider structure and a limiting structure. The slider structure is slidably connected to the outer surface of the limiting structure.

3. The safety device for preventing accidental movement of a car for a passenger elevator according to claim 1, characterized in that: A mounting platform is installed on the top of the car, an equipment frame with a sealing cover is installed on the bottom of the car, and safety structure bases are installed on the top and both sides of the car.

4. The safety device for preventing accidental movement of a car for a passenger elevator according to claim 1, characterized in that: Two connecting bases are installed at the bottom of the car, and auxiliary devices are installed at the bottom of each of the connecting bases.

5. The safety device for preventing accidental movement of a car for a passenger elevator according to claim 1, characterized in that: A buffer assembly is installed at the bottom of the car, and the buffer assembly includes a mounting structure, a fixed plate, a buffer component, a mounting plate, an arc-shaped buffer structure and a contact plate. The mounting structure is used to install the arc-shaped buffer structure, and the fixed plate and the mounting plate are used to connect the arc-shaped buffer structure and the bottom of the car.

6. The safety device for preventing accidental movement of a car for a passenger elevator according to claim 1, characterized in that: A supporting base is installed on the top of the car, and a monitoring component is installed on the top of the supporting base.

7. The safety device for preventing accidental movement of a car for a passenger elevator according to claim 1, characterized in that: Oil storage frames are installed at positions on both sides of the top of the car, and discharge frames are fixedly connected to the bottoms of the oil storage frames.

8. The safety device for preventing accidental movement of a car for a passenger elevator according to claim 7, characterized in that: Two sealing strips are installed inside the discharge frame, and a smearing component is rotatably connected inside the discharge frame.

9. The safety device for preventing accidental movement of a car for a passenger elevator according to claim 7, characterized in that: A sealing plate is installed on the top of the oil storage frame, and a sealing structure is installed on one side of the oil storage frame.

10. The safety device for preventing accidental movement of a car for a passenger elevator according to claim 7, characterized in that: A second telescopic component is installed on one side of the oil storage frame, and a push plate is installed on the telescopic end of the second telescopic component.

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