Supporting and protecting device for elevator maintenance

Abstract

The supporting and protecting device for elevator maintenance comprises a bottom plate, a lifting mechanism is arranged in the bottom plate, the lifting mechanism comprises a screw rod, moving blocks, a supporting rod and a supporting frame, the screw rod is movably arranged in the middle of the inner side of the bottom plate through a bearing, the moving blocks are movably arranged on the two sides of the interior of the bottom plate in a clamped mode, and the supporting rod is arranged on the supporting frame. The interior of the moving block is movably arranged on the outer side surface of the screw rod in a sleeving mode through threads, a supporting rod is movably arranged at the upper end of the moving block through a rotating shaft, a supporting frame is movably arranged at the upper end of the supporting rod through a rotating shaft, stand columns are fixedly arranged on the two sides of the surface of the bottom plate, and a plurality of first clamping blocks are evenly and fixedly arranged on the outer side surfaces of the stand columns; sliding grooves are formed in the two sides of the surface of the supporting frame, and sliding blocks are movably arranged in the sliding grooves in a clamped mode. The elevator car can be conveniently lifted, a larger maintenance space is provided for the bottom of an elevator, the effect of protecting maintenance personnel can be achieved, and accidental injuries are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator maintenance technical field, concretely is a kind of support protection device for elevator maintenance. BACKGROUND

[0002] Elevator is the permanent transportation equipment that its car runs in at least two columns vertical to horizontal plane or with the inclination angle of less than fifteen degrees to plumb line, which serves several specific floors in building. There are also step type, step board is installed on continuous running caterpillar belt, commonly known as escalator or moving sidewalk. Fixed lifting equipment serving specified floors. Vertical lifting elevator has a car, which runs between at least two vertical or inclined rigid guide rails with an angle of less than fifteen degrees. The size and structure of the car are convenient for passengers to enter and exit or load and unload goods.

[0003] When maintenance personnel maintain the elevator, it is necessary to enter the elevator pit for work. In order to provide a certain maintenance space for the maintenance personnel, it is often necessary to lift the elevator car to a certain height and maintain the car at this height. At the same time, when the maintenance personnel are maintaining in the elevator pit, there is still a risk of life caused by the falling of the elevator. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a support protection device for elevator maintenance, comprising a bottom plate, a lifting mechanism is arranged inside the bottom plate, the lifting mechanism comprises a screw rod, a moving block, a support rod and a support frame, a screw rod is movably arranged on the inner side of the middle part of the bottom plate through a bearing, moving blocks are movably and clamped on both sides of the inside of the bottom plate, the moving blocks are movably sleeved on the outer side surface of the screw rod through threads, a support rod is movably arranged on the upper end of the moving block through a rotating shaft, a support frame is movably arranged on the upper end of the support rod through a rotating shaft, vertical columns are fixedly arranged on both sides of the surface of the bottom plate, a plurality of first clamping blocks are uniformly fixedly arranged on the outer side surface of the vertical columns, sliding grooves are formed on both sides of the surface of the support frame, sliding blocks are movably and clamped in the sliding grooves, second clamping blocks are fixedly arranged on the outer side surface of the sliding blocks, springs are fixedly arranged on one side of the sliding grooves, an electric motor is fixedly arranged on one side of the surface of the bottom plate through a mounting seat, the output shaft end of the electric motor is fixedly connected with the screw rod through a shaft coupling, and an electromagnet is fixedly arranged on one side of the sliding groove on the surface of the support frame.

[0006] Preferably, a plurality of telescopic rods are fixedly arranged at the four corners of the upper end surface of the bottom plate, and the upper end of the telescopic rod is fixedly connected with the support frame.

[0007] Preferably, the side away from the base plate of the column is fixedly provided with a cavity, a capstan motor is movably clamped in the cavity, a steel wire rope is connected to the capstan motor, and the end of the steel wire rope away from the capstan motor is fixedly connected with the support frame.

[0008] Preferably, the two sides of the upper end of the column are fixedly provided with a fixed pulley, and the steel wire rope is sleeved on the outer surface of the fixed pulley.

[0009] Preferably, the outer surface of the cavity on the left side is fixedly provided with a control box, and the control box is electrically connected with the motor and the electromagnet.

[0010] Preferably, the cross section of the first clamping block and the second clamping block is trapezoidal, and the trapezoidal clamping block facilitates the upward movement of the support frame.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The utility model can lift the elevator during elevator maintenance, provides a larger maintenance space at the bottom of the elevator, and can automatically lock the first clamping block and the second clamping block when the support frame is lifted upward, so that manual locking is not needed, and the support rod is prevented from breaking or the support frame from suddenly falling down and injuring workers.

[0013] 2. The capstan motor can assist during lifting of the device, so that the pressure on the screw rod and the support rod is reduced, the service life of the device is prolonged, the screw rod surface is prevented from being damaged due to excessive pressure, and the safety of the device during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the overall structure of the utility model;

[0015] Figure 2 It is a schematic view of the overall structure of the utility model; Figure 1 It is an enlarged view of A in the utility model;

[0016] Figure 3 It is a structure view of the capstan motor of the utility model.

[0017] In the drawing: 1, base plate; 2, screw rod; 3, moving block; 4, support rod; 5, support frame; 6, column; 7, first clamping block; 8, sliding groove; 9, sliding block; 10, second clamping block; 11, spring; 12, motor; 13, electromagnet; 14, multi-stage telescopic rod; 15, cavity; 16, capstan motor; 17, steel wire rope; 18, fixed pulley; 19, control box. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figures 1-3 The utility model provides a kind of technical scheme of supporting protection device for elevator maintenance: including bottom plate 1, lifting mechanism is arranged in the bottom plate 1, the lifting mechanism includes screw rod 2, moving block 3, support rod 4, support frame 5, screw rod 2 is movably arranged in the middle of the inner side of bottom plate 1, moving block 3 is movably clamped and arranged on the both sides of the inside of bottom plate 1, moving block 3 is movably sleeved on the outer side surface of screw rod 2 by thread, support rod 4 is movably arranged on the upper end of moving block 3 by pivot, support frame 5 is movably arranged on the upper end of support rod 4 by pivot, vertical column 6 is fixedly arranged on the both sides of the surface of bottom plate 1, a plurality of first clamping blocks 7 are evenly fixedly arranged on the outer side surface of vertical column 6, sliding slot 8 is formed on the both sides of the surface of support frame 5, sliding block 9 is movably clamped and arranged in the inside of sliding slot 8, second clamping block 10 is fixedly arranged on the outer side surface of sliding block 9, spring 11 is fixedly arranged on one side in the inside of sliding slot 8, motor 12 is fixedly arranged on one side of the surface of bottom plate 1 by mounting seat, the output shaft end of motor 12 is fixedly connected between coupling and screw rod 2, electromagnet 13 is fixedly arranged on one side of sliding slot 8 on the surface of support frame 5, electromagnet 13 adsorbs second clamping block 10, so that second clamping block 10 moves and is dislocated with first clamping block 7, i.e. screw rod 2 can be reversed, so that support frame 5 moves down.

[0020] As shown in the combination Figure 1 As shown in the combination, multistage telescopic rod 14 is fixedly arranged at the four corners of the upper end surface of bottom plate 1, and multistage telescopic rod 14 can play a stabilizing role.

[0021] As shown in the combination Figure 3 As shown in the combination, cavity 15 is fixedly arranged on the side away from bottom plate 1 of vertical column 6, winch motor 16 is installed in the inside of cavity 15, steel wire rope 17 is connected to winch motor 16, and the end away from winch motor 16 of steel wire rope 17 is fixedly connected between support frame 5, fixed pulley 18 is fixedly arranged on the both sides of the upper end of vertical column 6, and steel wire rope 17 is sleeved on the outer side surface of fixed pulley 18.

[0022] In the embodiment, winch motor 16 can play an auxiliary role, so that the pressure on the positions of screw rod 2 and support rod 4 can be reduced.

[0023] In combination Figure 1 As shown, the left side of the cavity 15 is fixedly provided with a control box 19, which is electrically connected between the motor 12 and the electromagnet 13, and the working of the motor is controlled through the control box 19.

[0024] In combination Figure 2 As shown, the cross section of the first clamping block 7 and the second clamping block 10 is trapezoidal, the first clamping block 7 will extrude the second clamping block 10, and the second clamping block 10 will move along the sliding groove 8 after being contacted by the first clamping block 7, so as not to hinder the upward movement of the support frame 5.

[0025] Working principle: when using the device, set the device in the elevator shaft, drive the screw rod 2 to rotate through the motor 12, and the threads on the two sides of the surface of the screw rod 2 are opposite, so that when rotating, the left moving block 3 is driven to move right, and the right moving block 3 is driven to move left, so that the support frame 5 is pushed upward through the support rod 4, so that the elevator car can be lifted, and when the support frame 5 moves upward, the first clamping block 7 will extrude the second clamping block 10, and the second clamping block 10 will move along the sliding groove 8 after being contacted by the first clamping block 7, so as not to hinder the upward movement of the support frame 5, and after the second clamping block 10 moves to the upper end of the first clamping block 7, it can be quickly reset under the action of the spring 11, so that it can be automatically locked by the first clamping block 7 and the second clamping block 10 when the support frame 5 moves upward and lifts, without the need for manual locking, so as to prevent the support frame 5 from suddenly falling down due to the breakage of the support rod 4 or other reasons, and injuring the workers.

[0026] When the support frame 5 needs to be lowered after repair, it is only necessary to control the electromagnet 13 to attract the second clamping block 10 so that the second clamping block 10 moves out of position with the first clamping block 7, which reverses the screw rod 2 to make the support frame 5 move downward, and the winch motor 16 can play an auxiliary role when the device is lifted, so as to reduce the pressure on the positions of the screw rod 2 and the support rod 4, thereby improving the service life of the device, and preventing the threads on the surface of the screw rod 2 from being damaged due to excessive pressure, thereby further improving the safety of the device when in use.

[0027] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support protection device for elevator repair, comprising a base plate (1), characterized in that: The bottom plate (1) is internally provided with a lifting mechanism, the lifting mechanism comprises a screw rod (2), a moving block (3), a support rod (4), a support frame (5), the inside of the bottom plate (1) is movably provided with a screw rod (2) in the middle, the inside of the bottom plate (1) is movably clamped on both sides, the moving block (3) is movably sleeved on the outer surface of the screw rod (2) in the inside through the screw, the support rod (4) is movably arranged on the upper end of the moving block (3) through the shaft, the support rod (4) is movably arranged on the upper end of the support frame (5) through the shaft, the surface of the bottom plate (1) is fixedly provided with a stand (6) on both sides, a plurality of first clamping blocks (7) are uniformly fixedly arranged on the outer surface of the stand (6), a sliding groove (8) is formed on both sides of the surface of the support frame (5), a sliding block (9) is movably clamped in the sliding groove (8), a second clamping block (10) is fixedly arranged on the outer surface of the sliding block (9), a spring (11) is fixedly arranged on one side in the sliding groove (8), a motor (12) is fixedly arranged on one side of the surface of the bottom plate (1) through the mounting seat, the output shaft end of the motor (12) is fixedly connected with the screw rod (2) through the shaft coupling, and the surface of the support frame (5) is fixedly provided with an electromagnet (13) on one side of the sliding groove (8).

2. The support protection device for elevator maintenance according to claim 1, characterized in that: The upper surface of the bottom plate (1) is fixedly provided with a plurality of telescopic rods (14) at the four corners.

3. The support protection device for elevator maintenance according to claim 1, characterized in that: The side of the stand (6) away from the bottom plate (1) is fixedly provided with a cavity (15), the cavity (15) is internally provided with a winch motor (16), the winch motor (16) is connected with a steel wire rope (17), and one end of the steel wire rope (17) away from the winch motor (16) is fixedly connected with the support frame (5).

4. The support protection device for elevator maintenance according to claim 3, characterized in that: The upper end of the stand (6) is fixedly provided with a fixed pulley (18) on both sides, and the steel wire rope (17) is sleeved on the outer surface of the fixed pulley (18).

5. The support protection device for elevator maintenance according to claim 3, characterized in that: The outer surface of the cavity (15) on the left side is fixedly provided with a control box (19), and the control box (19) is electrically connected with the motor (12) and the electromagnet (13).

6. The support protection device for elevator maintenance according to claim 1, characterized in that: The cross section of the first clamping block (7) and the second clamping block (10) is trapezoidal.

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