Material lifting device for building decoration

Abstract

The application relates to the field of building decoration devices, in particular to a material lifting device for building decoration, which comprises a supporting seat, a lifting structure, a motor, a guide structure, a supporting plate, a loading structure, a limiting structure, a driving structure, a connecting structure, a dragging table, a positioning column and a second brake universal wheel. In the using process, the loading structure can be placed on the supporting plate, then the building material can be placed in the loading structure, the supporting plate can be moved through the lifting structure, the supporting plate can move together with the loading structure, so that the loading structure can be lifted to a specified position, then the loading structure can be taken off from the supporting plate, the material can be taken and placed in the moving process of the supporting plate, the material lifting time is effectively shortened, the material lifting efficiency is improved, the driving structure can manually drive the lifting structure to move, and the material lifting work can be realized without power.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building decoration device, and particularly relates to a material lifting device for building decoration. BACKGROUND

[0002] Building decoration refers to decoration and modification of a building in order to meet the needs of use functions, and specifically, building decoration includes installation of fittings such as doors, windows, railings, staircases, partitions and modification of surfaces such as walls, columns, beams, ceilings, floors and floors, and a large amount of decoration materials will be used in the process of building decoration, and the decoration materials often need to be lifted and carried from the ground to the designated floor by the lifting device.

[0003] However, the conventional lifting device needs to spend a lot of time by the staff to take down the materials one by one from the lifting device after the materials are lifted to the designated height, and then the next lifting of the materials can be carried out, so that a certain time is wasted, the efficiency of material carrying is poor, and generally the lifting device is driven by a motor, and the motor driving relies on power, so that when there is no power supply or power failure, the lifting device cannot be used, so that the applicability of use is poor. SUMMARY

[0004] In view of the problems in the prior art, the present application provides a material lifting device for building decoration.

[0005] The technical scheme adopted by the present application to solve the technical problems is: a material lifting device for building decoration, comprising a support seat, a lifting structure is arranged on the support seat, a motor is installed on the support seat, a guide structure is arranged on the lifting structure, two positioning columns are fixedly connected to the drag table, a supporting plate is placed on the drag table, the supporting plate is clamped between the two positioning columns, a loading structure is arranged on the supporting plate, a limiting structure is arranged on the supporting plate, a driving structure is arranged on the support seat, a connecting structure is arranged on the driving structure, and four second brake universal wheels are fixedly connected to the bottom end of the support seat.

[0006] The lifting structure comprises a support frame and a moving frame, two support frames are fixedly connected on the support base, the moving frame is slidably connected on the support frame, two lead screws are rotatably connected on the support base, the lead screws are threadedly connected with the adjacent moving frames, two pulleys are fixedly connected on the moving frame, a connecting rope is wound on the pulleys, one end of the connecting rope is fixedly connected to a pull plate, the other end of the connecting rope is fixedly connected to the support frame, a supporting block is rotatably connected on the pull plate, the supporting block is clamped between the pull plate and the supporting plate, a first gear is fixedly connected to the bottom end of the lead screw, a long shaft is rotatably connected on the support base, two second gears are fixedly connected on the long shaft, the first gear is engaged with the adjacent second gear, and the output shaft of the motor is fixedly connected with one end of the long shaft.

[0007] Specifically, the cross section of the supporting block is in L-shaped structure, the cross section of the pull plate is in L-shaped structure, and the cross section of one end of the supporting block is in trapezoidal structure.

[0008] Specifically, the guide structure comprises a guide rail and a sliding seat, two guide rails are fixedly connected on the moving frame, the sliding seat is slidably connected on the guide rail, and the same pull plate is fixedly connected on the adjacent two sliding seats.

[0009] Specifically, the loading structure comprises a connecting frame, the top end of the supporting plate is provided with a connecting frame, the bottom end of the connecting frame is fixedly connected with four first brake universal wheels, the bottom end of the first brake universal wheel is in abutment with the supporting plate, two baffle plates are clamped on the connecting frame, and the baffle plate is provided with a through slot.

[0010] Specifically, the limiting structure comprises a guide column and a connecting plate, two guide columns are fixedly connected on the supporting plate, the same connecting plate is slidably connected on the two guide columns, the top end of the connecting plate is fixedly connected with two clamping blocks, the bottom end of the clamping block is clamped between the connecting frame, the outer part of the guide column is sleeved with a return spring, one end of the return spring is in abutment with the supporting plate, and the other end of the return spring is in abutment with the connecting plate.

[0011] Specifically, the cross section of the top end of the clamping block is in trapezoidal structure, and the cross section of the top end of the guide column is in T-shaped structure.

[0012] Specifically, the driving structure comprises a connecting seat and a short shaft, the connecting seat is fixedly connected on the support base, the short shaft is rotatably connected on the connecting seat, the first synchronous wheel is fixedly connected on the short shaft, the connecting sleeve is fixedly connected on the support base, the rotating shaft is rotatably connected on the connecting sleeve, the second synchronous wheel is fixedly connected on the rotating shaft, and the synchronous belt is wound between the first synchronous wheel and the second synchronous wheel.

[0013] Specifically, the short shaft is fixedly connected with a crank handle, and the diameter of the first synchronous wheel is smaller than that of the second synchronous wheel.

[0014] Specifically, the connecting structure comprises a support plate and a knob, one end of the rotating shaft is fixedly connected with the support plate, a screw rod is threadedly connected on the support plate, one end of the screw rod is rotatably connected with a connecting block, and the connecting block is slidably connected with the rotating shaft.

[0015] Specifically, one end of the screw rod is fixedly connected with the knob, and the connecting block is in a hexagonal prism structure.

[0016] The present application has the following advantages:

[0017] (1) The material lifting device for building decoration can place the loading structure on the supporting plate, then place the building material in the loading structure, move the supporting plate through the lifting structure, and lift the loading structure to the designated position, then take the loading structure off the supporting plate, reset the lifting structure for the next material taking, and take the supporting plate off the lifting structure during the resetting process to avoid collision between the supporting plate and another loading structure, and load the material into the loading structure during the supporting plate movement, and take the material out of the loading structure, thereby effectively shortening the material lifting time and improving the material lifting efficiency.

[0018] (2) The material lifting device for building decoration can limit the loading structure through the limiting structure to avoid movement, place the supporting plate through the setting of the supporting table, position the supporting plate through the setting of two positioning columns, limit the loading structure through the limiting structure to avoid falling from a high place during lifting, thereby effectively improving the safety of use, and avoid the supporting plate from shaking during movement through the guiding structure, thereby effectively improving the stability of use.

[0019] (3) The material lifting device for building decoration can drive the lifting structure to move through the motor, and when there is no power or power failure, the driving structure and the lifting structure can be connected through the connecting structure, then the lifting structure can be manually driven through the driving structure, thereby realizing the lifting of the material without power, and effectively improving the applicability of use. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in conjunction with the drawings and examples.

[0021] Figure 1The structural schematic view of the overall structure of a preferred embodiment of the material lifting device for building decoration provided by the application is shown in the figure;

[0022] Figure 2 The structural schematic view of the connection structure of the connecting sleeve and the connecting seat of the application is shown in the figure; Figure 1 The enlarged schematic view of part A shown in the figure;

[0023] Figure 3 The structural schematic view of the connection structure of the connecting sleeve and the connecting seat of the application is shown in the figure;

[0024] Figure 4 The enlarged schematic view of part B shown in the figure; Figure 3 The enlarged schematic view of part B shown in the figure;

[0025] Figure 5 The structural schematic view of the connection structure of the connecting sleeve and the connecting seat of the application is shown in the figure;

[0026] Figure 6 The enlarged schematic view of part C shown in the figure; Figure 5 The enlarged schematic view of part C shown in the figure;

[0027] Figure 7 The structural schematic view of the connection structure of the connecting sleeve and the connecting seat of the application is shown in the figure;

[0028] Figure 8 The enlarged schematic view of part D shown in the figure. Figure 7 The enlarged schematic view of part D shown in the figure.

[0029] In the figure: 1, support seat; 2, lifting structure; 201, support frame; 202, moving frame; 203, lead screw; 204, connecting rope; 205, pulley; 206, pull plate; 207, supporting block; 208, first gear; 209, second gear; 210, long shaft; 3, motor; 4, guide structure; 401, guide rail; 402, sliding seat; 5, supporting plate; 6, loading structure; 601, connecting frame; 602, baffle; 603, through slot; 604, first brake universal wheel; 7, limiting structure; 701, guide column; 702, connecting plate; 703, clamping block; 704, return spring; 8, driving structure; 801, connecting seat; 802, short shaft; 803, first synchronous wheel; 804, synchronous belt; 805, second synchronous wheel; 806, rotating shaft; 807, connecting sleeve; 808, crank handle; 9, connecting structure; 901, supporting plate; 902, knob; 903, screw rod; 904, connecting block; 10, towing table; 11, positioning column; 12, second brake universal wheel. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific embodiments.

[0031] As Figure 1 , Figure 2 ,Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8 As shown in FIGS. 1-8, the building decoration material lifting device comprises a support seat 1, a lifting structure 2 is arranged on the support seat 1, a motor 3 is installed on the support seat 1, a guide structure 4 is arranged on the lifting structure 2, a towing table 10 is fixedly connected to the support seat 1, two positioning columns 11 are fixedly connected to the towing table 10, a supporting plate 5 is placed on the towing table 10, the supporting plate 5 is clamped between the two positioning columns 11, a loading structure 6 is arranged on the supporting plate 5, a limiting structure 7 is arranged on the supporting plate 5, a driving structure 8 is arranged on the support seat 1, a connecting structure 9 is arranged on the driving structure 8, and four second brake universal wheels 12 are fixedly connected to the bottom end of the support seat 1.

[0032] The lifting structure 2 includes support frames 201 and moving frames 202, two support frames 201 are fixedly connected on the support seat 1, the moving frames 202 are slidably connected on the support frames 201, two lead screws 203 are rotatably connected on the support seat 1, the lead screws 203 are threadedly connected between the adjacent moving frames 202, two pulleys 205 are fixedly connected on the moving frames 202, the connecting ropes 204 are wound on the pulleys 205, one end of the connecting ropes 204 is fixedly connected to a pull plate 206, the other end of the connecting ropes 204 is fixedly connected to the support frames 201, the pull plate 206 is rotatably connected with a supporting block 207, one end of the supporting block 207 is clamped between the supporting plate 5, the bottom end of the lead screw 203 is fixedly connected with a first gear 208, a long shaft 210 is rotatably connected on the support seat 1, two second gears 209 are fixedly connected on the long shaft 210, the first gear 208 is engaged with the adjacent second gear 209, the output shaft of the motor 3 is fixedly connected with one end of the long shaft 210, the overall cross section of the supporting block 207 is in L-shaped structure, the overall cross section of the pull plate 206 is in L-shaped structure, the cross section of one end of the supporting block 207 is in trapezoidal structure, the loading structure 6 includes a connecting frame 601, the top end of the supporting plate 5 is provided with the connecting frame 601, the bottom end of the connecting frame 601 is fixedly connected with four first brake universal wheels 604, the bottom end of the first brake universal wheels 604 abuts against the supporting plate 5, two baffles 602 are clamped on the connecting frame 601, the baffles 602 are provided with through grooves 603, namely: in the process of use, the supporting plate 5 can be placed on the supporting table 10, when placed, the two positioning columns 11 can pass through the supporting plate 5, so that the supporting plate 5 can be positioned, after the placement is completed, the connecting frame 601 can be placed on the supporting plate 5, the baffles 602 can be conveniently placed by being taken off from the connecting frame 601, the baffles 602 can be conveniently grabbed by being provided with the through grooves 603, after the material is placed, the baffles 602 can be clamped between the connecting frame 601 again, then the motor 3 is started, the output shaft of the motor 3 rotates to drive the long shaft 210 to rotate, the long shaft 210 rotates to drive the two second gears 209 to rotate, the second gears 209 rotate to drive the first gear 208 to rotate, the first gear 208 rotates to drive the lead screw 203 to rotate, the lead screw 203 rotates to threadedly drive the moving frame 202 to slide on the support frame 201, the movement of the moving frame 202 drives the two pulleys 205 to move, the two pull plates 206 move simultaneously with the simultaneous movement of the four pulleys 205, the pull plate 206 moves to drive the supporting block 207 to move, the movement of the two supporting blocks 207 drives the supporting plate 5 to move, the movement of the supporting plate 5 drives the connecting frame 601 to move, so that the material is lifted, after the material is lifted to the specified position, the output shaft of the motor 3 stops moving, then the connecting frame 601 can be moved, the connecting frame 601 can be conveniently moved by being provided with the four first brake universal wheels 604,The connecting frame 601 is continuously pulled until it is completely removed from the supporting plate 5, and then the output shaft of the motor 3 is reversely rotated to reset the supporting block 207. During use, after one connecting frame 601 and supporting plate 5 are lifted, another supporting plate 5 and connecting frame 601 can be placed on the supporting table 10, and materials can be added to the inside of the connecting frame 601. Therefore, the material taking and placing work can be performed while the supporting plate 5 moves, so that the material lifting time can be shortened, and the material lifting efficiency can be improved. During the resetting of the supporting plate 5, the supporting plate 5 can be removed from the two supporting blocks 207, so that the connecting frame 601 cannot resist the supporting plate 5. Since the supporting block 207 and the pulling plate 206 are rotationally connected, when the supporting block 207 collides with the connecting frame 601 and the supporting plate 5 during the resetting of the supporting block 207, the supporting block 207 rotates. When the supporting block 207 moves to a specified position, it reversely rotates to a horizontal state under the action of gravity and collides with the pulling plate 206. Then the next material lifting can be quickly performed, so that the use is more convenient.

[0033] Specifically, as Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the guide structure 4 comprises a guide rail 401 and a sliding block 402, two guide rails 401 are fixedly connected on the moving frame 202, the sliding block 402 is slidably connected on the guide rail 401, the same pull plate 206 is fixedly connected on two adjacent sliding blocks 402, the limiting structure 7 comprises a guide column 701 and a connecting plate 702, two guide columns 701 are fixedly connected on the supporting plate 5, the same connecting plate 702 is slidably connected on the two guide columns 701, two clamping blocks 703 are fixedly connected on the top end of the connecting plate 702, the clamping blocks 703 are clamped between the bottom end of the connecting frame 601, the external portion of the guide column 701 is sleeved with a reset spring 704, one end of the reset spring 704 abuts against the supporting plate 5, the other end of the reset spring 704 abuts against the connecting plate 702, the cross section of the top end of the clamping block 703 is trapezoidal structure, the cross section of the top end of the guide column 701 is T-shaped structure, that is, the two sliding blocks 402 can be driven to slide on the two guide rails 401 respectively in the process of movement of the pull plate 206, so that the pull plate 206 can be prevented from sliding in the process of movement, and the stability of use is effectively improved, and after the connecting frame 601 is placed on the supporting plate 5, the two clamping blocks 703 can be clamped with the bottom end of the connecting frame 601, so that the connecting frame 601 can be prevented from falling from the sky in the process of movement, thereby effectively improving the safety of use, and when the connecting frame 601 needs to be removed from the supporting plate 5, the connecting plate 702 can be pressed, the reset spring 704 is contracted, the two guide columns 701 can be arranged to play a role of movement guide for the connecting plate 702, the movement of the connecting plate 702 drives the two clamping blocks 703 to move away from the connecting frame 601, when the two clamping blocks 703 are not clamped with the connecting frame 601, the connecting frame 601 can be moved, so that the connecting frame 601 can be conveniently removed from the supporting plate 5.

[0034] Specifically, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the driving structure 8 comprises a connecting seat 801 and a short shaft 802, the connecting seat 801 is fixedly connected on the support seat 1, the short shaft 802 is rotationally connected on the connecting seat 801, the first synchronous wheel 803 is fixedly connected on the short shaft 802, the connecting sleeve 807 is fixedly connected on the support seat 1, the rotating shaft 806 is rotationally connected on the connecting sleeve 807, the second synchronous wheel 805 is fixedly connected on the rotating shaft 806, the synchronous belt 804 is wound between the first synchronous wheel 803 and the second synchronous wheel 805, the crank 808 is fixedly connected on the short shaft 802, the diameter of the first synchronous wheel 803 is smaller than that of the second synchronous wheel 805, the connecting structure 9 comprises a support plate 901 and a knob 902, one end of the rotating shaft 806 is fixedly connected with the support plate 901, the screw rod 903 is threadedly connected on the support plate 901, one end of the screw rod 903 is rotationally connected with the connecting block 904, the connecting block 904 is slidingly connected on the rotating shaft 806, the knob 902 is fixedly connected on one end of the screw rod 903, the connecting block 904 is hexagonal structure, that is, when there is no power supply or power failure in the using process, the knob 902 is rotated to rotate the screw rod 903, the rotation of the screw rod 903 drives the connecting block 904 to move towards the long shaft 210, when the connecting block 904 is engaged with the long shaft 210, the rotation of the knob 902 is stopped, then the short shaft 802 is rotated by holding the crank 808, the rotation of the short shaft 802 drives the first synchronous wheel 803 to rotate, the rotation of the first synchronous wheel 803 drives the second synchronous wheel 805 to rotate through the synchronous belt 804, the rotation of the second synchronous wheel 805 drives the rotating shaft 806 to rotate, since the diameter of the first synchronous wheel 803 is smaller than that of the second synchronous wheel 805, and the crank 808 is L-shaped structure, the labor-saving effect is achieved, the rotation of the rotating shaft 806 drives the connecting block 904 to rotate, the rotation of the connecting block 904 drives the long shaft 210 to rotate, therefore, the material can be lifted when there is no power supply or power failure, and the motor 3 fails, thereby effectively improving the applicability.

[0035] The application can position the supporting plate 5 by placing the supporting plate 5 on the supporting table 10 and allowing the two positioning columns 11 to pass through the supporting plate 5 during use, can avoid the connecting frame 601 from falling from a high place during movement by allowing the two clamping blocks 703 to be clamped between the bottom end of the connecting frame 601 after the connecting frame 601 is placed on the supporting plate 5, and effectively improves the safety of use. The material can be placed conveniently by removing the baffle 602 from the connecting frame 601, the baffle 602 can be conveniently grabbed by arranging the through slot 603, the baffle 602 can be clamped with the connecting frame 601 again after the material is placed, and then the output shaft of the motor 3 is driven to rotate the long shaft 210, the long shaft 210 drives the two second gears 209 to rotate, the second gears 209 drive the first gear 208 to rotate, the first gear 208 drives the screw rod 203 to rotate, the screw rod 203 drives the moving frame 202 to slide on the support frame 201, the movement of the moving frame 202 drives the two pulleys 205 to move, the two pull plates 206 move simultaneously with the simultaneous movement of the four pulleys 205, the two sliding blocks 402 are driven to slide on the two guide rails 401 during the movement of the pull plates 206, thereby avoiding the pull plates 206 from sliding during movement and effectively improving the stability of use. The movement of the pull plates 206 drives the supporting blocks 207 to move, the movement of the two supporting blocks 207 drives the supporting plate 5 to move, the movement of the supporting plate 5 drives the connecting frame 601 to move, thereby achieving the lifting of the material. The output shaft of the motor 3 stops moving after the material is lifted to a specified position, the connecting plate 702 is pressed, the reset spring 704 is contracted, the two guide columns 701 are arranged to guide the movement of the connecting plate 702, the movement of the connecting plate 702 drives the two clamping blocks 703 to move away from the connecting frame 601, the connecting frame 601 can be moved when the two clamping blocks 703 are not clamped with the connecting frame 601, the four first brake universal wheels 604 are arranged to facilitate the movement of the connecting frame 601, the connecting frame 601 is continuously pulled until it is completely removed from the supporting plate 5, and then the output shaft of the motor 3 is reversely rotated to reset the supporting blocks 207. Another supporting plate 5 and connecting frame 601 can be placed on the supporting table 10 after one connecting frame 601 and supporting plate 5 are lifted, and the material is added to the inside of the connecting frame 601, so that the material can be taken and placed while the supporting plate 5 moves, thereby shortening the time of lifting the material and improving the efficiency of lifting the material. The supporting plate 5 can be removed from the two supporting blocks 207 during resetting, thereby avoiding the connecting frame 601 from resisting the supporting plate 5. Since the supporting blocks 207 and the pull plates 206 are rotationally connected, the supporting blocks 207 rotate when they resist the connecting frame 601 and the supporting plate 5 during resetting.When moving to the designated position, it reverses the rotation under the action of gravity to the horizontal state and collides with the pull plate 206, and then the next material lifting can be quickly carried out, thereby being more convenient to use.

[0036] In the process of use, when there is no power or power failure, the knob 902 can be rotated to rotate the screw rod 903, and the rotation of the screw rod 903 drives the adapter block 904 to move towards the long shaft 210, and when the adapter block 904 is engaged with the long shaft 210, the rotation of the knob 902 can be stopped, then the short shaft 802 can be rotated by holding the handle 808, the rotation of the short shaft 802 drives the first synchronous wheel 803 to rotate, the rotation of the first synchronous wheel 803 drives the second synchronous wheel 805 to rotate through the synchronous belt 804, and the rotation of the second synchronous wheel 805 drives the rotating shaft 806 to rotate, since the diameter of the first synchronous wheel 803 is smaller than that of the second synchronous wheel 805, and the handle 808 is in L-shaped structure, thus the labor-saving effect can be achieved, the rotation of the rotating shaft 806 drives the adapter block 904 to rotate, and the adapter block 904 drives the long shaft 210 to rotate, thus the material lifting can be realized when there is no power, or power failure, and the motor 3 fails, thereby effectively improving the applicability of use.

[0037] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than by the foregoing description, and it is intended that all changes that come within the meaning and range of equivalency of the claims are embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0038] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A material lifting device for building decoration, characterized in that, The device includes a support base, a lifting structure on the support base, a motor mounted on the support base, a guide structure on the lifting structure, a drag platform fixedly connected to the support base, two positioning columns fixedly connected to the drag platform, a pallet placed on the drag platform, the pallet engaging with the two positioning columns, a loading structure on the pallet, a limiting structure on the pallet, a drive structure on the support base, a connecting structure on the drive structure, and four second brake casters fixedly connected to the bottom end of the support base. The lifting structure includes a support frame and a movable frame. Two support frames are fixedly connected to the support base, and a movable frame is slidably connected to the support frame. Two lead screws are rotatably connected to the support base, and the lead screws are threadedly connected to adjacent movable frames. Two pulleys are fixedly connected to the movable frame, and connecting ropes are wound around the pulleys. One end of the connecting rope is fixedly connected to a pull plate, and the other end of the connecting rope is fixedly connected to the support frame. A support block is rotatably connected to the pull plate, and one end of the support block engages with the support plate. A first gear is fixedly connected to the bottom end of the lead screw. A long shaft is rotatably connected to the support base, and two second gears are fixedly connected to the long shaft. The first gear meshes with the adjacent second gear. The output shaft of the motor is fixedly connected to one end of the long shaft. The drive structure includes a connecting seat and a short shaft. The connecting seat is fixedly connected to the support seat, the short shaft is rotatably connected to the connecting seat, the first synchronous pulley is fixedly connected to the short shaft, the connecting sleeve is fixedly connected to the support seat, the rotating shaft is rotatably connected to the connecting sleeve, and the second synchronous pulley is fixedly connected to the rotating shaft. A synchronous belt is wound between the first synchronous pulley and the second synchronous pulley. The connecting structure includes a support plate and a knob. One end of the rotating shaft is fixedly connected to the support plate, and a screw is threadedly connected to the support plate. One end of the screw is rotatably connected to the connecting block, and the connecting block is slidably connected to the rotating shaft. A knob is fixedly connected to one end of the screw. The connecting block has a hexagonal prism structure. During use, when there is no power or the power is off, the screw can be rotated by the knob. The rotation of the screw will drive the connecting block to move towards the long axis. When the connecting block and the long axis are engaged, the knob can be stopped, and then the short axis can be rotated by hand.

2. The material lifting device for building decoration according to claim 1, characterized in that: The cross-section of the support block is L-shaped, the cross-section of the pull plate is L-shaped, and the cross-section of one end of the support block is trapezoidal.

3. The material lifting device for building decoration according to claim 1, characterized in that: The guide structure includes guide rails and slide blocks. Two guide rails are fixedly connected to the movable frame, and slide blocks are slidably connected to the guide rails. The same pull plate is fixedly connected to two adjacent slide blocks.

4. The material lifting device for building decoration according to claim 1, characterized in that: The loading structure includes a connecting frame. The top of the pallet is provided with a connecting frame. The bottom of the connecting frame is fixedly connected with four first brake casters. The bottom of the first brake casters abuts against the pallet. Two baffles are engaged on the connecting frame. The baffles are provided with through grooves.

5. A material lifting device for building decoration according to claim 4, characterized in that: The limiting structure includes guide posts and a connecting plate. Two guide posts are fixedly connected to the support plate, and the same connecting plate is slidably connected to the two guide posts. Two locking blocks are fixedly connected to the top of the connecting plate, and the bottom of the locking blocks engages with the connecting frame. A return spring is sleeved on the outside of the guide posts. One end of the return spring abuts against the support plate, and the other end of the return spring abuts against the connecting plate.

6. A material lifting device for building decoration according to claim 5, characterized in that: The top of the card block has a trapezoidal cross-section, and the top of the guide post has a T-shaped cross-section.

7. A material lifting device for building decoration according to claim 1, characterized in that: A crank handle is fixedly connected to the short shaft, and the diameter of the first synchronous pulley is smaller than the diameter of the second synchronous pulley.

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