Supporting and protecting device for elevator maintenance

Abstract

The utility model relates to the technical field of elevators, in particular to a supporting and protecting device for elevator maintenance. The device comprises a base, four mounting frames are fixedly connected to the upper end of the base, L-shaped lifting rods are slidably connected between the side walls of the mounting frames, and an L-shaped supporting plate is slidably arranged at the upper ends of the L-shaped lifting rods; moving blocks are fixedly connected to the lower ends of the L-shaped lifting rods, the moving blocks are fixed through connecting rods, moving grooves are formed in one side of the mounting frame, lead screws are rotationally connected to the inner top walls of the two moving grooves, and the moving blocks are in threaded connection to the circumferential sides of the lead screws through lead screw nuts; a moving part is arranged between the L-shaped lifting rod and the L-shaped supporting plate and used for moving the L-shaped supporting plate, the position of the L-shaped supporting plate can be adjusted according to the height, the supporting stability is improved, the L-shaped supporting plate is arranged into a whole, disassembly and assembly are not needed, use is convenient, and the overhauling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of elevators, and in particular to a support and protection device for elevator maintenance. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building, with its car moving on at least two rigid tracks perpendicular to the horizontal plane or at an angle of less than 15° to the vertical. There are also escalators, where steps are mounted on a continuous track and run; these are commonly known as moving walkways or automatic stairs. Elevators are fixed lifting devices that serve designated floors.

[0003] When performing maintenance in an elevator shaft, a support structure is needed to prevent the elevator car from shaking or sliding downwards during the maintenance process. Existing support structures are usually built on-site to fit the height of the elevator car, which is time-consuming and troublesome to dismantle. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a support and protection device for elevator maintenance, which has the effect of setting the support structure as a whole, eliminating the need for installation and disassembly, and adjusting the position to support the elevator according to the height of the elevator car, making it more convenient to use.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An elevator maintenance support and protection device includes a base, four mounting brackets are fixedly connected to the upper end of the base, and L-shaped lifting rods are slidably connected between the side walls of the mounting brackets. An L-shaped support plate is slidably provided at the upper end of the L-shaped lifting rod.

[0007] The lower end of the L-shaped lifting rod is fixedly connected to a movable block, and the movable blocks are fixed together by a connecting rod. A movable groove is opened on one side of the mounting frame, and a lead screw is rotatably connected to the inner top wall of the two movable grooves. The movable block is threaded to the circumferential side of the lead screw by a lead screw nut.

[0008] A movable component is provided between the L-shaped lifting rod and the L-shaped support plate for moving the L-shaped support plate.

[0009] In a preferred embodiment, the present invention can be further configured such that: the movable component includes an adjustment groove formed at the upper end of the L-shaped lifting rod, and a hydraulic cylinder is fixedly connected to one side of the adjustment groove, and an adjustment block is fixedly connected to the output end of the hydraulic cylinder, and the L-shaped support plate is fixedly connected to the upper end of the adjustment block.

[0010] In a preferred embodiment, the present invention can be further configured such that: two sliding rods are fixedly connected between the side walls of the adjusting groove, and the adjusting block is slidably connected to the circumferential side of the two sliding rods.

[0011] In a preferred embodiment, the present invention can be further configured such that: a limiting rod is fixedly connected between the inner top wall and the inner bottom wall of the other two movable slots, and the movable block is slidably connected to the circumferential side of the limiting rod through the limiting block.

[0012] In a preferred embodiment, the present invention can be further configured as follows: the lower end of the base has two storage slots, and a movable plate is slidably disposed between the side walls of the storage slots. A caster wheel is installed at the lower end of the movable plate, and a retractable member is disposed between the movable plate and the storage slots for the movement of the caster wheel.

[0013] In a preferred embodiment, the present invention can be further configured such that: the shrinking member includes two springs fixed between the movable plate and the storage slot; two bolts are provided above the base, and the bolt threads penetrate the inner top wall of the storage slot and abut against the upper end of the movable plate.

[0014] In a preferred embodiment, the present invention can be further configured such that: two limiting grooves are provided on both side walls of the storage slot, and the movable plate slides within the limiting grooves via a slider.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] 1. It is equipped with a base, mounting bracket, L-shaped lifting rod, L-shaped support plate, moving blocks, moving groove, lead screw, lead screw nut, and connecting rod. The two sides of the four moving blocks are connected by four connecting rods. When the lead screw is rotated, the lead screw nut moves up and down on the circumferential side of the lead screw. The connecting rod drives the four moving blocks and the four L-shaped lifting rods to move upward. The L-shaped lifting rod drives the L-shaped support plate to move upward. The position of the L-shaped support plate can be adjusted according to the height to improve the stability of the support. It is set as a whole, which does not require disassembly and installation, making it convenient to use and improving maintenance efficiency.

[0017] 2. It is equipped with a movable plate, casters, springs, bolts, and a storage slot. After the base is moved to a suitable location, the bolts are turned. The bolts gradually move away from the top of the movable plate. Due to the elastic recovery of the springs and the weight of the base, the movable plate moves upward. The casters retract into the storage slot, allowing the lower end of the base to touch the ground, thus improving the support stability of the base. Attached Figure Description

[0018] Figure 1 This is a perspective view of this embodiment;

[0019] Figure 2 This is the first perspective sectional view of this embodiment;

[0020] Figure 3 This is the embodiment. Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is the embodiment. Figure 2 A magnified view of a section at point B in the middle;

[0022] Figure 5 This is the second perspective sectional view of this embodiment;

[0023] Figure 6 This is the embodiment. Figure 5 A magnified view of a section at point C.

[0024] In the diagram, 1. Base; 2. Mounting bracket; 3. Connecting rod; 4. L-shaped support plate; 5. Moving block; 6. L-shaped lifting rod; 7. Casters; 8. Bolt; 9. Moving groove; 10. Lead screw; 11. Lead screw nut; 12. Limiting rod; 13. Limiting block; 14. Storage groove; 15. Spring; 16. Limiting groove; 17. Moving plate; 18. Hydraulic cylinder; 19. Slide rod; 20. Adjusting block; 21. Adjusting groove. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Reference Figure 1 The present invention discloses a support and protection device for elevator maintenance, including a base 1, four mounting brackets 2 are fixedly connected to the upper end of the base 1, and L-shaped lifting rods 6 are slidably connected between the side walls of the mounting brackets 2, and L-shaped support plates 4 are slidably provided at the upper end of the L-shaped lifting rods 6.

[0028] The lower end of the L-shaped lifting rod 6 is fixedly connected to a moving block 5. The moving blocks 5 are fixed together by a connecting rod 3. A moving groove 9 is opened on one side of the mounting frame 2. The inner top wall of the two moving grooves 9 is rotatably connected to a screw rod 10. The moving block 5 is threaded to the circumferential side of the screw rod 10 by a screw rod nut 11.

[0029] A movable component is provided between the L-shaped lifting rod 6 and the L-shaped support plate 4 for moving the L-shaped support plate 4.

[0030] In this embodiment, the two sides of the four movable blocks 5 are connected by four connecting rods 3. When the lead screw 10 is rotated, the lead screw nut 11 moves up and down on the circumferential side of the lead screw 10. The connecting rods 3 drive the four movable blocks 5 and the four L-shaped lifting rods 6 to move upward. The L-shaped lifting rods 6 drive the L-shaped support plate 4 to move upward. The position of the L-shaped support plate 4 can be adjusted according to the height to improve the stability of the support. A motor can be installed at the upper end of the base 1. The lead screw 10 is fixed at the output end of the motor. The lead screw 10 is set on two diagonally opposite mounting brackets 2 to improve the moving support of the L-shaped lifting rod 6. Preferably, four lead screws 10 can also be set, with each mounting bracket 2 having a lead screw 10, which can provide more stable support.

[0031] For further details, please refer to Figure 2 The movable component includes an adjustment groove 21 opened at the upper end of the L-shaped lifting rod 6, and a hydraulic cylinder 18 is fixedly connected to one side of the adjustment groove 21. An adjustment block 20 is fixedly connected to the output end of the hydraulic cylinder 18, and an L-shaped support plate 4 is fixedly connected to the upper end of the adjustment block 20.

[0032] In this embodiment, if the elevator dimensions are inconsistent, the hydraulic cylinder 18 is activated. The output end of the hydraulic cylinder 18 pushes the adjusting block 20 to move, which can drive the L-shaped support plate 4 to move. Thus, according to the elevator dimensions, the position of the L-shaped support plate 4 is adjusted to support the bottom of the elevator and improve the support stability of the elevator.

[0033] For further details, please refer to Figure 5 Two slide rods 19 are fixedly connected between the side walls of the adjusting groove 21, and the adjusting block 20 is slidably connected to the circumferential side of the two slide rods 19.

[0034] In this embodiment, the adjusting block 20 makes a linear translational movement on the circumferential side of the slide bar 19, which can improve the movement stability of the adjusting block 20.

[0035] For further details, please refer to Figure 2 and Figure 4 In addition, the inner top wall and inner bottom wall of the other two moving slots 9 are fixedly connected to the limiting rods 12, and the moving block 5 is slidably connected to the circumferential side of the limiting rods 12 through the limiting block 13.

[0036] In this embodiment, the movable block 5 slides on the movable groove 9, which can improve the lifting stability of the L-shaped lifting rod 6.

[0037] For further details, please refer to Figure 6 The base 1 has two storage slots 14 at its lower end, and a movable plate 17 is slidably arranged between the side walls of the storage slots 14. A caster wheel 7 is installed at the lower end of the movable plate 17, and a retractable part is provided between the movable plate 17 and the storage slots 14 for the movement of the caster wheel 7.

[0038] In this embodiment, after the base 1 is moved to a suitable location, the moving plate 17 and the caster wheel 7 are retracted into the storage slot 14 by the retraction member, and the base 1 is attached to the ground, which can improve the placement stability of the base 1.

[0039] For further details, please refer to Figure 5 and Figure 6 The retractable component includes two springs 15 fixed between the movable plate 17 and the storage slot 14. Two bolts 8 are provided above the base 1, and the bolts 8 are threaded through the inner top wall of the storage slot 14 and abut against the upper end of the movable plate 17.

[0040] In this embodiment, after the base 1 is moved to a suitable location, the bolt 8 is rotated. The bolt 8 gradually moves away from the top of the moving plate 17. Due to its own elastic recovery and the weight of the base 1, the spring 15 causes the moving plate 17 to move upward. The caster wheel 7 retracts into the storage groove 14, so that the lower end of the base 1 can be in contact with the ground, thereby improving the support stability of the base 1.

[0041] For further details, please refer to Figure 6 The storage slot 14 has two limiting slots 16 on each of its two side walls, and the movable plate 17 slides in the limiting slots 16 by means of a slider.

[0042] In this embodiment, the moving plate 17 moves within the limiting groove 16, which can prevent the spring 15 from bending when compressed or when it recovers its elasticity, thus preventing the moving plate 17 from deviating from its moving trajectory.

[0043] The implementation principle of the above embodiment is as follows: the base 1 is moved to the bottom of the elevator pit, the lead screw 10 is rotated, the lead screw nut 11 moves up and down on the circumferential side of the lead screw 10, the connecting rod 3 drives the four moving blocks 5 and the four L-shaped lifting rods 6 to move upward, the L-shaped lifting rods 6 drive the L-shaped support plate 4 to move upward, and the position of the L-shaped support plate 4 can be adjusted according to the height to improve the stability of the support.

[0044] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0045] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A support and protection device for elevator maintenance, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to four mounting brackets (2), and L-shaped lifting rods (6) are slidably connected between the side walls of the mounting brackets (2). An L-shaped support plate (4) is slidably provided on the upper end of the L-shaped lifting rods (6). The lower end of the L-shaped lifting rod (6) is fixedly connected to a moving block (5), and the moving blocks (5) are fixed together by a connecting rod (3). A moving groove (9) is provided on one side of the mounting frame (2), and a screw rod (10) is rotatably connected to the inner top wall of the two moving grooves (9). The moving block (5) is threaded to the circumferential side of the screw rod (10) by a screw nut (11). A movable component is provided between the L-shaped lifting rod (6) and the L-shaped support plate (4) for moving the L-shaped support plate (4).

2. The support and protection device for elevator maintenance according to claim 1, characterized in that: The movable component includes an adjustment groove (21) opened on the upper end of the L-shaped lifting rod (6), and a hydraulic cylinder (18) is fixedly connected to one side of the adjustment groove (21), and an adjustment block (20) is fixedly connected to the output end of the hydraulic cylinder (18), and the L-shaped support plate (4) is fixedly connected to the upper end of the adjustment block (20).

3. The support and protection device for elevator maintenance according to claim 2, characterized in that: Two slide rods (19) are fixedly connected between the side walls of the adjustment groove (21), and the adjustment block (20) is slidably connected to the circumferential side of the two slide rods (19).

4. The support and protection device for elevator maintenance according to claim 1, characterized in that: The inner top wall and inner bottom wall of the other two moving slots (9) are fixedly connected to a limiting rod (12), and the moving block (5) is slidably connected to the circumferential side of the limiting rod (12) through the limiting block (13).

5. The support and protection device for elevator maintenance according to claim 1, characterized in that: The base (1) has two storage slots (14) at its lower end, and a movable plate (17) is slidably arranged between the side walls of the storage slots (14). A caster wheel (7) is installed at the lower end of the movable plate (17), and a retractable part is provided between the movable plate (17) and the storage slots (14) for the movement of the caster wheel (7).

6. The support and protection device for elevator maintenance according to claim 5, characterized in that: The shrinking component includes two springs (15) fixed between the moving plate (17) and the storage groove (14). Two bolts (8) are provided above the base (1), and the bolts (8) are threaded through the inner top wall of the storage groove (14) and abut against the upper end of the moving plate (17).

7. The support and protection device for elevator maintenance according to claim 5, characterized in that: The storage slot (14) has two limiting slots (16) on its two side walls, and the moving plate (17) slides in the limiting slots (16) by means of a slider.

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