A working platform for elevator installation

Abstract

The present invention belongs to the technical field of elevator installation, and in particular, is a work platform for elevator installation, comprising a bottom plate, a pair of support plates fixed on the top of the bottom plate, a top plate fixed to the tops of the two support plates, sliders fixed on both sides of the platform, a sliding connection formed between the sliders and the corresponding support plates, a cable fixed on the top of the slider, the other end of the cable passing through the top plate and connected to a reel, a pair of shaft seats fixed on the top of the top plate, a horizontal shaft column rotatably connected to the shaft seat, a reel fixed sleeve arranged on the shaft column, a support fixed on both sides of the top plate, a motor fixed on the top of the support, the motor output shaft and the end of the shaft column fixedly connected, a pair of brackets fixed on the top plate, a fixed pulley rotatably connected to the bracket, and two sets of anti-falling mechanisms arranged on the top of the top plate. In the present invention, when an accident occurs to the motor and the insurance measures fail, the platform will fall, and at this time the anti-falling mechanism will press the cable on the bracket, thereby slowing down the falling speed of the platform.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator installation, and in particular to a working platform for elevator installation. Background Art

[0002] Elevators in high-rise buildings are indispensable tools for going up and down stairs. During the installation process of the elevator, some scattered parts must be installed after the elevator main body is installed in the hoistway. In order to facilitate the installation of scattered parts of the elevator, a working platform for elevator installation has been specially developed.

[0003] The existing elevator installation work platform does not have an anti-fall function. When the installation platform fails, the platform on the installation platform will drop rapidly, which will cause a safety accident. Therefore, corresponding improvements are made to address this problem. Summary of the invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a working platform for elevator installation.

[0005] The present invention provides a working platform for installing an elevator, comprising a bottom plate, a pair of supporting plates being fixed on the top of the bottom plate, a top plate being fixed on the top ends of the two supporting plates, a platform being arranged between the bottom plate and the top plate, sliders being fixed on both sides of the platform, a sliding connection being formed between the sliders and the corresponding supporting plates, a cable being fixed on the top of the slider, the other end of the cable passing through the top plate and being connected to a drum, a pair of shaft seats being fixed on the top of the top plate, a horizontal shaft column being rotatably connected to the shaft seat, the drum being fixedly sleeved on the shaft column, supports being fixed on both sides of the top plate, a motor being fixed on the top of the supports, and the output shaft of the motor being fixed to the end of the shaft column A pair of brackets are fixed on the top of the top plate, and a fixed pulley cooperating with the cable is rotatably connected to the bracket. Two sets of anti-fall mechanisms are arranged on the top of the top plate; first, the equipment is lifted into the elevator shaft, and then people stand in the platform, and then the motor is started by the remote control, and then the motor output shaft drives the shaft column and the drum to rotate, and the drum will reel in the cable, and the free end of the cable will pull the slider to lift the platform upward until the platform moves to a predetermined height and stops. When the motor has an accident and the insurance measures fail, the platform will fall, and the anti-fall mechanism will press the cable on the bracket to slow down the falling speed of the platform.

[0006] Preferably, the anti-fall mechanism includes an L-plate fixed on the top of the top plate, a friction block that can be pressed on the cable is elastically connected to the top of the L-plate, a U-shaped rod is inserted on the side of the L-plate, a socket for inserting the U-shaped rod is provided on the friction block, the U-shaped rod is connected to a pull-out component, and a trigger structure is provided on the cable; when the platform falls, the trigger structure will pull the U-shaped rod outward through the pull-out component, so that the U-shaped rod is pulled out of the socket, and then the friction block will move downward under the action of elastic force and press tightly onto the cable.

[0007] Preferably, a pair of guide posts passing through the L-plate are fixed to the top of the friction block, and a spring is sleeved on the guide post, and the two ends of the spring are respectively fixedly connected to the L-plate and the friction block; when the U-shaped plug is pulled out, the friction block can be pressed onto the cable by the elastic force of the spring.

[0008] Preferably, the pulling-out assembly includes a first connecting rod, a fixing frame is fixed on the side of the support plate, the first connecting rod is rotatably connected to the fixing frame, a round hole for the cable to pass through is opened at the inner end of the first connecting rod, the outer end of the first connecting rod is rotatably connected to the second connecting rod, the top end of the second connecting rod is rotatably connected to the third connecting rod, and the top end of the third connecting rod is rotatably connected to the U-shaped plug rod; when the platform falls, it will synchronously drive the cable to move, and the trigger structure on the cable will unfold, and when the trigger structure moves downward through the round hole, it will drive the inner end of the first connecting rod to rotate downward, and then the other end of the first connecting rod will push the second connecting rod upward, and the top end of the second connecting rod will push the third connecting rod upward, and the top end of the third connecting rod will pull out the U-shaped plug rod, and when the platform moves normally, the trigger structure will not unfold and can pass through the round hole normally.

[0009] Preferably, the pulling assembly includes a connecting rod fixed to the end of the U-shaped plug rod, the bottom end of the connecting rod passes through the support plate, and the bottom end of the connecting rod is provided with an inclined surface that can contact the trigger structure; when the platform falls, it will synchronously drive the cable to move, and the trigger structure on the cable will be deployed. When the trigger structure moves downward and passes through the inclined surface, it will push the inclined surface to withdraw the connecting rod outward, and then the connecting rod will pull out the U-shaped plug rod, and when the platform moves normally, the trigger structure will not be deployed and will not contact the inclined surface at this time.

[0010] Preferably, the trigger structure includes a fixed ring fixedly mounted on the cable, the circumferential outer wall of the fixed ring is rotatably connected to a first frame distributed in a plurality of circular arrays, a movable ring is mounted on the cable, the circumferential outer wall of the movable ring is rotatably connected to a second frame distributed in a plurality of circular arrays, the top of the second frame is rotatably connected to the corresponding first frame, and the trigger structure also includes an edging cloth, which is fixed on the outer surfaces of the plurality of first frames; when the platform falls, the edging cloth will unfold the plurality of first frames under the action of wind, thereby forming an umbrella-like structure, so that the first connecting rod or the connecting rod can be triggered to act respectively when passing through a circular hole or an inclined surface, and remain in a folded state during normal movement without contacting the circular hole or the inclined surface.

[0011] Preferably, a bottom block with a triangular cross-section is fixed on the top of the bracket, and a pressing groove matching the shape of the bottom block is provided at the bottom end of the friction block; in this way, the cable can be bent onto the bottom block by the friction block, thereby improving the deceleration effect on the cable.

[0012] Preferably, the bottom end of the friction block is provided with an arc-shaped notch adapted to the cable; thus, the cable can be fitted onto the friction block through the arc-shaped notch, thereby preventing the cable from being separated from the friction block.

[0013] Preferably, a plurality of moving wheels are installed at the bottom of the base plate, and a pair of symmetrically distributed handles are fixed at the top of the base plate; the moving wheels and the handles make it convenient to move the device.

[0014] Compared with the prior art, the present invention provides a working platform for elevator installation, which has the following beneficial effects:

[0015] 1. A working platform for elevator installation is provided with an anti-fall mechanism. When an accident occurs to the motor and the insurance measures fail, the platform will fall. At this time, the anti-fall mechanism will press the cable on the bracket, thereby slowing down the falling speed of the platform.

[0016] 2. A working platform for elevator installation, which is provided with a friction block. When the platform falls, the trigger structure will pull the U-shaped rod outward through the pull-out assembly, so that the U-shaped rod is pulled out of the socket, and then the friction block will move downward under the action of elastic force and press against the cable.

[0017] 3. A working platform for installing an elevator, which is provided with a first connecting rod. When the platform falls, the cable will be driven to move synchronously, and the trigger structure on the cable will be unfolded. When the trigger structure moves downward and passes through the round hole, it will drive the inner end of the first connecting rod to rotate downward, and then the other end of the first connecting rod will push the second connecting rod upward, and the top end of the second connecting rod will push the third connecting rod upward, and the top end of the third connecting rod will pull the U-shaped plug rod outward.

[0018] 4. A working platform for installing an elevator is provided with a connecting rod. When the platform falls, the cable will be driven to move synchronously, and the trigger structure on the cable will be deployed. When the trigger structure moves downward through the inclined surface, it will push the inclined surface to withdraw the connecting rod to the outside, and then the connecting rod will pull out the U-shaped plug rod.

[0019] 5. A working platform for installing an elevator is provided with a trigger structure. When the platform falls, the edge cloth will unfold multiple first frames under the action of wind force, thereby forming an umbrella-like structure, so that the first connecting rod or the connecting rod can be triggered to act when passing through a circular hole or an inclined surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the first angle structure of a working platform for elevator installation proposed by the present invention;

[0021] Figure 2 This is a second angle structural schematic diagram of a working platform for elevator installation proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the top plate of a working platform for elevator installation proposed by the present invention;

[0023] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0024] Figure 5 This is a schematic diagram of the friction block installation structure of a working platform for elevator installation proposed by the present invention;

[0025] Figure 6 This is a schematic diagram of the installation structure of a pull-out assembly of a working platform for elevator installation proposed in Embodiment 1 of the present invention;

[0026] Figure 7 This is a schematic diagram of the installation structure of a pull-out assembly of a working platform for elevator installation proposed in Embodiment 2 of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of a pull-out assembly of a working platform for elevator installation proposed in Embodiment 2 of the present invention;

[0028] Fig. 9 For the present invention Figure 3 A schematic diagram of the enlarged structure at B;

[0029] Fig.10 The present invention is a schematic structural diagram of a trigger structure of a working platform for elevator installation.

[0030] In the figure: 1. bottom plate; 2. support plate; 3. top plate; 4. axle seat; 5. axle column; 6. drum; 7. cable; 8. bracket; 9. fixed pulley; 10. platform; 11. slider; 12. L-plate; 13. friction block; 14. socket; 15. U-shaped plug rod; 16. guide column; 17. spring; 18. fixed frame; 19. first connecting rod; 20. round hole; 21. second connecting rod; 22. third connecting rod; 23. support; 24. motor; 25. connecting rod; 26. inclined plane; 27. fixed ring; 28. first frame; 29. ​​second frame; 30. movable ring; 31. edging cloth; 32. bottom block; 33. pressing groove; 34. arc-shaped notch; 35. moving wheel; 36. handle. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Reference Figure 1-Figure 10 , a working platform for elevator installation, comprising a bottom plate 1, a pair of supporting plates 2 are fixed on the top of the bottom plate 1, a top plate 3 is fixed on the tops of the two supporting plates 2, a platform 10 is arranged between the bottom plate 1 and the top plate 3, sliders 11 are fixed on both sides of the platform 10, a sliding connection is formed between the sliders 11 and the corresponding supporting plates 2, a cable 7 is fixed on the top of the slider 11, the other end of the cable 7 passes through the top plate 3 and is connected with a drum 6, a pair of shaft seats 4 are fixed on the top of the top plate 3, a horizontal shaft column 5 is rotatably connected to the shaft seat 4, the drum 6 is fixedly sleeved on the shaft column 5, supports 23 are fixed on both sides of the top plate 3, a motor 24 is fixed on the top of the support 23, the output shaft of the motor 24 is fixedly connected to the end of the shaft column 5, a pair of brackets 8 are fixed on the top of the top plate 3, a fixed pulley 9 cooperating with the cable 7 is rotatably connected to the bracket 8, and two sets of anti-falling mechanisms are arranged on the top of the top plate 3;

[0034] When working, the device is first lifted into the elevator shaft, and then a person stands in the platform 10, and then the motor 24 is started by the remote control, and then the output shaft of the motor 24 drives the shaft column 5 and the drum 6 to rotate, and the drum 6 will reel in the cable 7, and the free end of the cable 7 will pull the slider 11 to lift the platform 10 upward until the platform 10 moves to a predetermined height and stops. When an accident occurs to the motor 24 and the safety measures fail, the platform 10 will fall. At this time, the anti-fall mechanism will press the cable 7 on the bracket 8, thereby slowing down the falling speed of the platform 10.

[0035] The anti-fall mechanism includes an L-plate 12 fixed on the top of the top plate 3, a friction block 13 that can press on the cable 7 is elastically connected to the top of the L-plate 12, a U-shaped plug rod 15 is inserted on the side of the L-plate 12, and a plug hole 14 for inserting the U-shaped plug rod 15 is opened on the friction block 13, the U-shaped plug rod 15 is connected to a pull-out component, and a trigger structure is provided on the cable 7;

[0036] During operation, when the platform 10 falls, the trigger structure will pull the U-shaped rod 15 outward through the pull-out assembly, so that the U-shaped rod 15 is pulled out of the insertion hole 14, and then the friction block 13 will move downward under the action of elastic force and press onto the cable 7.

[0037] A pair of guide posts 16 passing through the L plate 12 are fixed to the top of the friction block 13, and a spring 17 is sleeved on the guide post 16. The two ends of the spring 17 are fixedly connected to the L plate 12 and the friction block 13 respectively.

[0038] During operation, when the U-shaped rod 15 is pulled out, the friction block 13 can be pressed tightly onto the cable 7 by the elastic force of the spring 17 .

[0039] In embodiment 1, the extraction assembly includes a first connecting rod 19, a fixing frame 18 is fixed to the side of the support plate 2, the first connecting rod 19 is rotatably connected to the fixing frame 18, a round hole 20 for the cable 7 to pass through is provided at the inner end of the first connecting rod 19, a second connecting rod 21 is rotatably connected to the outer end of the first connecting rod 19, a third connecting rod 22 is rotatably connected to the top end of the second connecting rod 21, and the top end of the third connecting rod 22 is rotatably connected to the U-shaped plug rod 15;

[0040] During operation, when the platform 10 falls, it will synchronously drive the cable 7 to move, and the trigger structure on the cable 7 will be deployed. When the trigger structure moves downward and passes through the circular hole 20, it will drive the inner end of the first connecting rod 19 to rotate downward, and then the other end of the first connecting rod 19 will push the second connecting rod 21 upward, and the top of the second connecting rod 21 will push the third connecting rod 22 upward, and the top of the third connecting rod 22 will pull the U-shaped plug 15 outward. When the platform 10 moves normally, the trigger structure will not be deployed and can pass through the circular hole 20 normally.

[0041] In embodiment 2, the extraction assembly includes a connecting rod 25 fixed to the end of the U-shaped plug rod 15, the bottom end of the connecting rod 25 passes through the support plate 2, and the bottom end of the connecting rod 25 is provided with an inclined surface 26 capable of contacting the trigger structure;

[0042] During operation, when the platform 10 falls, the cable 7 will be driven to move synchronously, and the trigger structure on the cable 7 will be deployed. When the trigger structure moves downward and passes through the inclined surface 26, it will push the inclined surface 26 to withdraw the connecting rod 25 to the outside, and then the connecting rod 25 will pull out the U-shaped plug 15. When the platform 10 moves normally, the trigger structure will not be deployed and will not contact the inclined surface 26.

[0043] The trigger structure includes a fixed ring 27 fixedly sleeved on the cable 7, the outer circumferential wall of the fixed ring 27 is rotatably connected to a plurality of first skeletons 28 distributed in a circular array, a movable ring 30 is sleeved on the cable 7, the outer circumferential wall of the movable ring 30 is rotatably connected to a plurality of second skeletons 29 distributed in a circular array, the top of the second skeleton 29 is rotatably connected to the corresponding first skeleton 28, and the trigger structure also includes an edge cloth 31, which is fixed on the outer surface of the plurality of first skeletons 28;

[0044] During operation, when the platform 10 falls, the edging cloth 31 will unfold the multiple first frames 28 under the action of wind, thereby forming an umbrella-like structure, so that when passing through the circular hole 20 or the inclined surface 26, the first connecting rod 19 or the connecting rod 25 will be triggered to move respectively, and during normal movement, they will remain in a folded state and will not contact the circular hole 20 or the inclined surface 26.

[0045] Furthermore, a bottom block 32 with a triangular cross section is fixed on the top of the bracket 8, and a pressing groove 33 matching the shape of the bottom block 32 is opened at the bottom end of the friction block 13;

[0046] During operation, the cable 7 can be bent onto the bottom block 32 by the friction block 13 , thereby improving the deceleration effect on the cable 7 .

[0047] Furthermore, the bottom end of the friction block 13 is provided with an arc-shaped notch 34 adapted to the cable 7;

[0048] During operation, the cable 7 can be fitted through the arc-shaped notch 34 to prevent the cable 7 from being separated from the friction block 13.

[0049] Furthermore, a plurality of moving wheels 35 are installed at the bottom of the base plate 1, and a pair of symmetrically distributed handles 36 are fixed at the top of the base plate 1;

[0050] During operation, the device can be conveniently moved by the moving wheels 35 and the handle 36 .

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A working platform for elevator installation, comprising a bottom plate (1), characterized in that: A pair of support plates (2) are fixed on the top of the bottom plate (1), a top plate (3) is fixed to the tops of the two support plates (2), a platform (10) is arranged between the bottom plate (1) and the top plate (3), sliders (11) are fixed on both sides of the platform (10), a sliding connection is formed between the sliders (11) and the corresponding support plates (2), a cable (7) is fixed on the top of the slider (11), the other end of the cable (7) passes through the top plate (3) and is connected to a drum (6), a pair of A shaft seat (4) is rotatably connected to a transverse shaft column (5), a reel (6) is fixedly sleeved on the shaft column (5), supports (23) are fixed on both sides of the top plate (3), a motor (24) is fixed on the top of the support (23), an output shaft of the motor (24) is fixedly connected to the end of the shaft column (5), a pair of brackets (8) are fixed on the top of the top plate (3), a fixed pulley (9) cooperating with the cable (7) is rotatably connected to the brackets (8), and two sets of anti-falling mechanisms are arranged on the top of the top plate (3); The anti-fall mechanism is used to press the cable (7) onto the bracket (8) when the platform (10) falls, thereby slowing down the falling speed of the platform (10); The anti-fall mechanism comprises an L-plate (12) fixed on the top of the top plate (3), a friction block (13) capable of pressing on the cable (7) being elastically connected to the top of the L-plate (12), a U-shaped plug rod (15) being inserted on the side of the L-plate (12), a plug hole (14) for inserting the U-shaped plug rod (15) being provided on the friction block (13), a pull-out assembly being connected to the U-shaped plug rod (15), and a trigger structure being provided on the cable (7); A pair of guide posts (16) passing through the L-plate (12) are fixed to the top of the friction block (13), a spring (17) is sleeved on the guide posts (16), and two ends of the spring (17) are respectively fixedly connected to the L-plate (12) and the friction block (13).

2. The elevator installation working platform according to claim 1, characterized in that: The extraction assembly comprises a first connecting rod (19), a fixing frame (18) is fixed to the side of the support plate (2), the first connecting rod (19) is rotatably connected to the fixing frame (18), a round hole (20) for the cable (7) to pass through is provided at the inner end of the first connecting rod (19), a second connecting rod (21) is rotatably connected to the outer end of the first connecting rod (19), the top end of the second connecting rod (21) is rotatably connected to the third connecting rod (22), and the top end of the third connecting rod (22) is rotatably connected to the U-shaped plug rod (15).

3. The elevator installation working platform according to claim 1, characterized in that: The extraction assembly comprises a connecting rod (25) fixed to the end of the U-shaped insertion rod (15), the bottom end of the connecting rod (25) passes through the support plate (2), and the bottom end of the connecting rod (25) is provided with an inclined surface (26) capable of contacting the trigger structure.

4. The elevator installation working platform according to claim 1, characterized in that: The trigger structure comprises a fixed ring (27) fixedly sleeved on the cable (7), the fixed ring (27) having a circumferential outer wall rotatably connected to a plurality of first frames (28) distributed in an annular array, a movable ring (30) sleeved on the cable (7), the movable ring (30) having a circumferential outer wall rotatably connected to a plurality of second frames (29) distributed in an annular array, the top end of the second frame (29) being rotatably connected to the corresponding first frame (28), and the trigger structure further comprises an edge cloth (31), the edge cloth (31) being fixed to the outer surfaces of the plurality of first frames (28).

5. The elevator installation working platform according to claim 1, characterized in that: A bottom block (32) having a triangular cross section is fixed to the top of the bracket (8), and a pressing groove (33) matching the shape of the bottom block (32) is provided at the bottom end of the friction block (13).

6. The elevator installation working platform according to claim 1, characterized in that: The bottom end of the friction block (13) is provided with an arc-shaped notch (34) adapted to fit the cable (7).

7. The elevator installation working platform according to claim 1, characterized in that: A plurality of moving wheels (35) are installed at the bottom of the base plate (1), and a pair of symmetrically distributed handles (36) are fixed to the top of the base plate (1).

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