Multifunctional stair lifting device

Abstract

The invention relates to the technical field of lifters, in particular to a multifunctional stair lifting device which comprises a bottom frame, a top frame, supporting channel steel and the like. Two supporting steel channels which are symmetrical front and back are rotationally connected to the bottom frame. The supporting channel steel is parallel to the staircase, and the supporting channel steel is located above the staircase; the lower sides of the two supporting steel channels are jointly and fixedly connected with a connecting plate. The upper sides of the two supporting steel channels are jointly and rotationally connected with a top frame. Electric vacuum suction cups are arranged in the bottom frame and the top frame. Compared with an installation mode of a conventional stair elevator, the stair elevator has the advantages that trepanning operation on steps or walls is omitted, non-destructive installation of the stair elevator is achieved, attractiveness of a stair with veneering decoration completed is guaranteed, the protection quality of a stair finished product is improved, the shielding cloth is used for replacing the stair to make contact with shoe soles of workers, and the working efficiency is improved. Therefore, cement, sand and the like on the soles are prevented from being in direct contact with veneering decorations of the stairs, and subsequent cleaning work on the surfaces of the stairs is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a multifunctional stair lift device. Background Art

[0002] In the case where heavy objects need to be frequently carried in a staircase, a stair lift is usually installed in the staircase to transport heavier objects, thereby reducing the situation of manually carrying heavy objects and improving the transportation efficiency of materials. The conventional installation method of a stair lift is usually to fix the slide rail of the stair lift to the steps or walls by bolts. In this way, installation holes need to be opened on the steps or walls, thus damaging the steps or the wall body. In some special occasions, the conventional stair lift cannot meet the usage requirements. For example, during the decoration process, when transporting decoration materials on a staircase that has already been finished with veneer decoration, if the conventional installation method of a stair lift is adopted, it will damage the already decorated staircase.

[0003] In summary, the present application proposes a multifunctional stair lift device to improve the above-mentioned technical problems. Summary of the Invention

[0004] In order to overcome the disadvantage that the conventional stair lift installation method will damage the stair decoration surface when transporting heavy objects on a decorated staircase, the present invention provides a multifunctional stair lift device.

[0005] The technical implementation solution of the present invention is as follows: A multifunctional stair lift device includes a chassis; it also includes a top frame, support channel steels, a drive assembly, a load-carrying frame, and electric rollers; two symmetrically arranged front and rear support channel steels are rotatably connected to the chassis; the support channel steels are arranged parallel to the staircase and are located above the staircase; a connecting plate is fixedly connected to the lower sides of the two support channel steels; a top frame is rotatably connected to the upper sides of the two support channel steels; electric vacuum suckers are arranged inside both the chassis and the top frame; a drive assembly is installed on the support channel steels; a load-carrying frame for carrying heavy objects is connected to the drive assembly; the drive assembly drives the load-carrying frame to move up and down along the inclined direction of the support channel steels; an electric roller is arranged inside the top frame; a shielding cloth for preventing wear of the stair surface is wound around the roller body of the electric roller; the other end of the shielding cloth is clamped on the connecting plate.

[0006] More preferably, in the above-mentioned multi-functional staircase lifting device, an auxiliary fixing component is further included; the auxiliary fixing component includes a baffle plate, an adjusting plate, an electromagnet and a pressing plate; a baffle plate for preventing heavy objects from falling out of the loading rack is slidably connected to both the left and right sides of the loading rack; the baffle plate is connected to the driving component; the baffle plate is driven to move up and down by the driving component; two symmetrically arranged limiting protrusions are arranged up and down in each support channel steel; several adjusting plates are slidably connected between the two limiting protrusions; the number and distribution spacing of the adjusting plates are the same as the number and distribution spacing of the steps on the staircase; an electromagnet is rotatably connected to each adjusting plate through a rotating shaft; the electromagnet is in a cylindrical shape; a locking bolt is arranged at the connection between the adjusting plate and the limiting protrusion; a locking bolt is also arranged at the connection between the adjusting plate and the rotating shaft; a pressing plate for fixing the shielding cloth is slidably connected to each electromagnet; a connecting rod is arranged on the upper side of the pressing plate; the connecting rod penetrates through the center of the electromagnet, and the connecting rod is made of a magnetic material; a notch is formed on the lower side of each support channel steel.

[0007] More preferably, the support channel steel is set as a splicable structure; the support channel steel and the bottom frame are fixedly connected by detachable bolts; the support channel steel and the top frame are fixedly connected by detachable bolts.

[0008] More preferably, in the above-mentioned multi-functional staircase lifting device, the driving component includes a first slide rail, a first electric slider, a second slide rail and a second electric slider; a first slide rail is fixedly connected to the upper side of each support channel steel; the first slide rail is a multi-section spliced slide rail; a first electric slider is slidably connected to each of the two lowermost first slide rails; the two first electric sliders are jointly fixedly connected to the loading rack; several second slide rails are arranged on the loading rack; a second electric slider is slidably connected to each second slide rail; the two second electric sliders on the left side are jointly fixedly connected to the baffle plate on the left side; the two second electric sliders on the right side are jointly fixedly connected to the baffle plate on the right side.

[0009] More preferably, the shielding cloth is set to be woven from nylon fibers with wear resistance, high tensile strength, water resistance and moisture resistance.

[0010] More preferably, the bottom of the pressing plate is made of wear-resistant rubber material.

[0011] More preferably, in the above-mentioned multi-functional staircase lifting device, a protection system is further included; the protection system includes a sliding frame and a protection plate; a sliding frame is connected to each adjusting plate through a spring; a protection plate for protecting the edge part of the staircase is jointly rotatably connected between the sliding frames on the front-side adjusting plate and the sliding frames on the corresponding positions of the rear-side adjusting plate through a torsion spring; each protection plate is attached to the lower surface of the support channel steel; when the shielding cloth is tightened; the protection plate is attached to the lower surface of the shielding cloth.

[0012] More preferably, in the above multi-functional staircase lifting device, the protection system further includes a linkage rod; a linkage rod for preventing the protection plate from blocking the movement of the pressure plate is fixedly connected to each rotating shaft; an inclined surface is provided on each sliding carriage; each linkage rod is in sliding contact with the inclined surface on the adjacent sliding carriage.

[0013] More preferably, the protection plate is made of a hollow aluminum alloy plate.

[0014] More preferably, convex anti-slip stripes are provided on the upper surface of the protection plate.

[0015] The beneficial effects of the present invention are as follows: Compared with the installation method of a conventional staircase lift, the operation of opening holes in the steps or walls is eliminated, enabling the non-destructive installation of the staircase lift, ensuring the beauty of the staircase with completed veneer decoration, and improving the quality of protection for the finished staircase. By using a shielding cloth to contact the staircase instead of the soles of the staff, it is possible to prevent direct contact between the cement, sand, etc. on the soles and the veneer decoration of the staircase, thus avoiding subsequent cleaning work on the staircase surface. When transporting items down the staircase, the shielding cloth can be used to achieve continuous transmission of the items, eliminating the need for repeated loading, transmission, and unloading operations, and improving the efficiency of item transportation. By pressing the shielding cloth with the pressure plate, relative slippage between the shielding cloth and the staircase is avoided, preventing the staff from falling and getting injured. On this basis, the load on the load-carrying rack and the support channel steel can be transmitted to the staircase through the pressure plate, improving the stress distribution of the support channel steel and thus increasing the load-bearing capacity of the load-carrying rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the multi-functional staircase lifting device of the present invention; Figure 2 is a combined cross-sectional view of the chassis and the top frame of the present invention; Figure 3 is of the present invention Figure 2 enlarged view at A; Figure 4 is a partial cross-sectional view of the support channel steel of the present invention; Figure 5 is a three-dimensional structural schematic diagram of the combined regulating plate, electromagnet, and pressure plate of the present invention; Figure 6 is a three-dimensional structural schematic diagram of the combined load-carrying rack and baffle of the present invention; Figure 7 is an open state diagram of the baffle of the present invention; Figure 8 is a pressed state diagram of the baffle of the present invention; Figure 9State diagram of the shielding cloth fitting the stairs according to the present invention; Figure 10 Schematic three-dimensional structure diagram of the adjusting plate and protection system according to the present invention; Figure 11 Schematic three-dimensional structure diagram of the carriage and protection plate combination according to the present invention.

[0017] The markings of each component in the drawings are as follows: 1 - chassis, 2 - top frame, 3 - support channel steel, 3001 - connecting plate, 3002 - limit bump, 3003 - notch, 4 - load rack, 5 - electric roller, 5001 - shielding cloth, 6 - stairs, 6001 - lower platform, 6002 - upper platform, 6003 - edge, 201 - first slide rail, 202 - first electric slider, 203 - second slide rail, 204 - second electric slider, 205 - baffle, 206 - adjusting plate, 207 - electromagnet, 20701 - rotating shaft, 208 - pressing plate, 20801 - connecting rod, 301 - carriage, 30101 - inclined surface, 302 - protection plate, 303 - linkage rod. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1 Refer to Figures 1 - 9 As shown, a multifunctional stair lifting device includes a chassis 1; the chassis 1 is located at the lower platform 6001 of the stairs 6; It further includes a top frame 2, support channel steels 3, a drive assembly, a load rack 4 and an electric roller 5; two symmetrically arranged support channel steels 3 are rotatably connected to the chassis 1; the support channel steels 3 are arranged parallel to the stairs 6 and are located above the stairs 6; a connecting plate 3001 is fixedly connected to the lower sides of the two support channel steels 3; a top frame 2 is rotatably connected to the upper sides of the two support channel steels 3; the top frame 2 is located at the upper platform 6002 of the stairs 6; electric vacuum suckers are arranged inside both the chassis 1 and the top frame 2; a drive assembly is installed on the support channel steel 3; the drive assembly is connected to the load rack 4; the load rack 4 is driven by the drive assembly to move up and down along the inclined direction of the support channel steel 3; an electric roller 5 is arranged inside the top frame 2; the electric roller 5 is composed of a motor and a roller body; the roller body of the electric roller 5 is rotated by the motor; a shielding cloth 5001 is wound on the roller body of the electric roller 5; the other end of the shielding cloth 5001 is clamped on the connecting plate 3001.

[0020] It further includes an auxiliary fixing component; the auxiliary fixing component includes a baffle plate 205, an adjusting plate 206, an electromagnet 207 and a pressing plate 208; a baffle plate 205 is slidably connected to both the left and right sides of the load carrier 4; the baffle plate 205 is connected to the driving component; the driving component drives the baffle plate 205 to move up and down; two symmetrically arranged limiting bumps 3002 are arranged up and down in each support channel steel 3; a plurality of adjusting plates 206 are slidably connected between the two limiting bumps 3002; the number and distribution spacing of the adjusting plates 206 are the same as the number and distribution spacing of the steps of the staircase 6; an electromagnet 207 is rotatably connected to each adjusting plate 206 through a rotating shaft 20701; the electromagnet 207 is in a cylindrical shape; a locking bolt is arranged at the connection between the adjusting plate 206 and the limiting bump 3002; a locking bolt is also arranged at the connection between the adjusting plate 206 and the rotating shaft 20701; a pressing plate 208 is slidably connected to each electromagnet 207; the upper side of the pressing plate 208 is a connecting rod 20801; the connecting rod 20801 passes through the center of the electromagnet 207, and the connecting rod 20801 is made of a magnetic material; a notch 3003 is formed in the lower side of each support channel steel 3.

[0021] Furthermore, to facilitate the installation of the staircase lift in narrow areas and improve the practicality of the staircase lift, the support channel steel 3 is set as a splicable structure; the support channel steel 3 and the chassis 1 are fixedly connected by detachable bolts; the support channel steel 3 and the top frame 2 are fixedly connected by detachable bolts.

[0022] The driving component includes a first slide rail 201, a first electric slider 202, a second slide rail 203 and a second electric slider 204; a first slide rail 201 is fixedly connected to the upper side of each support channel steel 3; the first slide rail 201 is a multi-section splicable slide rail; a first electric slider 202 is slidably connected to each of the two lowermost first slide rails 201; the two first electric sliders 202 are jointly fixedly connected to the load carrier 4; four second slide rails 203 arranged in a rectangle are arranged on the load carrier 4; a second electric slider 204 is slidably connected to each second slide rail 203; the two second electric sliders 204 on the left side are jointly fixedly connected to the left baffle plate 205; the two second electric sliders 204 on the right side are jointly fixedly connected to the right baffle plate 205.

[0023] Furthermore, to improve the service life of the shielding cloth 5001, the shielding cloth 5001 is set to be woven from nylon fibers with wear resistance, high tensile strength, water resistance and moisture resistance.

[0024] Furthermore, to increase the friction between the pressing plate 208 and the shielding cloth 5001, the bottom of the pressing plate 208 is made of wear-resistant rubber material.

[0025] Therefore, the process of installing a stair lift for heavy object transportation on the already veneer-decorated stair 6 is described in detail. Among them, the lower platform of the stair 6 is the lower platform 6001, the upper platform of the stair 6 is the upper platform 6002, and the connection between the tread and the riser of the steps in the stair 6 is the edge 6003: Since the lengths of each stair 6 to be installed are not the same, before installing the stair lift, it is necessary to measure the length and slope of the stair 6. By setting the support channel steel 3 as a spliceable structure, it is convenient to splice different lengths of support channel steel 3 so that the total length of the support channel steel 3 matches the length of the stair 6. At the same time, by splicing multiple sections of the first slide rail 201, the length of the first slide rail 201 is made to be the same as the length of the support channel steel 3. Also, considering that the stair 6 may be located in a narrow working area, it is difficult to directly place the installed stair lift on the stair 6. Thus, the chassis 1, the top frame 2, the support channel steel 3, and the load-carrying rack 4 can be installed separately through the following installation process, thereby improving the practicality of the stair lift.

[0026] The installation process of the stair lift is as follows. First, place the chassis 1 on the lower platform 6001 and the top frame 2 on the upper platform 6002. Then, manually install the support channel steel 3 on one side together with the first slide rail 201 and the first electric slider 202 between the chassis 1 and the top frame 2. Connect the lower side of the support channel steel 3 to the chassis 1 and the upper side to the top frame 2 with installation bolts. Then, complete the installation of the support channel steel 3 on the other side and its connecting parts in the same steps. Subsequently, adjust the positions of the chassis 1 and the top frame 2 in the left-right direction to adjust the inclination angle of the support channel steel 3 so that the support channel steel 3 is parallel to the stairs 6. Then, install the connecting plate 3001 on the lower sides of the two support channel steels 3 to integrate the two support channel steels 3. Manually pull out the shielding cloth 5001 from the roller body on the electric roller 5 and snap one end of the shielding cloth 5001 onto the connecting plate 3001. Then, manually spread the shielding cloth 5001 flat on the steps of the stairs 6 to protect the veneer decoration on the steps. Finally, install the load-carrying rack 4 and its connecting parts on the first electric slider 202, and then control the electric vacuum suckers in the chassis 1 and the top frame 2 to start working, so that the chassis 1 is stably fixed on the lower platform 6001 and the top frame 2 is stably fixed on the upper platform 6002. In this way, the load on the load-carrying rack 4 is transmitted to the chassis 1 and the top frame 2 through the support channel steel 3. Subsequently, the chassis 1 transmits the received load to the lower platform 6001, and the top frame 2 transmits the received load to the upper platform 6002, thus completing the installation of the stair lift. Compared with the installation method of conventional stair lifts, the operation of opening holes in the steps or walls is eliminated, realizing the non-destructive installation of the stair lift, ensuring the beauty of the stairs 6 with completed veneer decoration, improving the quality of the finished product protection of the stairs 6. At the same time, through the split installation, the stair lift can be installed on the stairs 6 with a small working space, improving the practicality of the stair lift.

[0027] When transporting heavy objects, taking the transportation above the stairs 6 as an example for detailed description. At this time, the load-carrying rack 4 is located below the support channel steel 3. Control all the second electric sliders 204 to move downward on the corresponding second slide rails 203, thereby driving the two baffles 205 to move downward, so that the left and right edges of the load-carrying rack 4 are opened. The staff on the lower platform 6001 places the heavy object in the load-carrying rack 4. Then, control the second electric slider 204 to drive the two baffles 205 to move upward, closing the left and right edges of the load-carrying rack 4. In this way, the four edges of the load-carrying rack 4 protect the heavy object to prevent the heavy object from falling out of the load-carrying rack 4 during transportation. Then, control the first electric slider 202 to move upward on the first slide rail 201, thereby driving the load-carrying rack 4 and the heavy object to move upward to the upper side of the support channel steel 3. Subsequently, control the second electric slider 204 to open the left and right edges of the load-carrying rack 4, and the staff on the upper platform 6002 removes the heavy object in the load-carrying rack 4. In this way, the stair lift is used to carry the heavy object.

[0028] When heavy objects do not need to be transported, such as Figure 7 As shown, the second electric slider 204 is controlled to drive the carrier 4 to move to the lower side of the supporting channel steel 3, and the second electric slider 204 is controlled to move the baffle 205 downward, so that the left and right side edges of the carrier 4 are in an open state. At this time, the staff can step onto the carrier 4 through the lower platform 6001, and then step onto the stairs 6, so that the stair lift will not affect the normal use of the stairs 6 when it is not working, and when the width of the stairs 6 is much larger than the width of the stair lift, the area of ​​the stairs 6 covered by the shielding cloth 5001 can be used as a special passage for the decoration staff to walk. At this time, the shielding cloth 5001 replaces the stairs 6 to contact the soles of the staff, thereby avoiding direct contact between the cement, sand, etc. on the soles and the veneer decoration of the stairs 6, and avoiding subsequent cleaning of the surface of the stairs 6. It is explained here that since the shielding cloth 5001 is configured to be woven with wear-resistant, high tensile strength, waterproof and moisture-proof nylon fibers, the shielding cloth 5001 can be in contact with sand, water, mud and other particles for a long time, thereby improving the service life of the shielding cloth 5001.

[0029] On this basis, when transporting items downward from the stairs 6, although the items can be transported by the carrier 4, when there are many items to be transported, the carrier 4 is required to transport the items downward in batches. This requires repeated loading, transmission, and unloading operations, which is relatively cumbersome. To solve this problem, the shielding cloth 5001 can be rolled up to a taut state by controlling the electric roller 5. At this time, the shielding cloth 5001 is separated from the steps of the stairs 6, and the shielding cloth 5001 is tilted downward. At the same time, the carrier 4 is located at the lower side of the supporting channel steel 3, and the second electric slider 204 is controlled to drive the baffle 205 to move to the lowermost side. At this time, the left baffle 205 is in contact with the shielding cloth 5001, and then the staff on the upper platform 6002 can place the items one by one on the middle of the shielding cloth 5001, so that the items slide down along the shielding cloth 5001. Then it rolls down to the loading rack 4. At the same time, the staff of the lower platform 6001 can take the items off the loading rack 4. In this way, the shielding cloth 5001 can realize continuous transmission of the items, without repeated loading, transmission and unloading operations, thereby improving the efficiency of item transportation. It is explained here that the items transmitted by the shielding cloth 5001 are limited to items with light weight and low transportation requirements. If there is a risk of damage during the transportation of the items, the loading rack 4 is still used for transmission. Furthermore, when there are more particles such as cement and sand remaining on the surface of the shielding cloth 5001, the shielding cloth 5001 is tightened by the electric roller 5, so that the particles remaining on the shielding cloth 5001 can slide down along the shielding cloth 5001 and onto the loading rack 4, and then the particles on the loading rack 4 are cleaned manually, so that the shielding cloth 5001 can be cleaned.

[0030] It is also considered that when the staff steps on the shielding cloth 5001, there is a possibility that the shielding cloth 5001 slips relative to the staircase 6, which can easily cause the staff to fall and get injured. Moreover, after each use of the shielding cloth 5001 for item transfer, it is necessary for the staff to manually re-lay the shielding cloth 5001 again, thus increasing the workload of the staff.

[0031] To solve this problem, when installing the staircase lifting device, it is necessary to add a regulating plate 206 and its connecting parts. The following is the installation process of the regulating plate 206. After the two support channel steels 3 are installed, the installation of the regulating plate 206 is carried out at this time. First, configure the number of the regulating plate 206 and its connecting parts according to the number of steps of the staircase 6, so that the number of the regulating plate 206 and the pressing plate 208 on each support channel steel 3 is the same as the number of steps. Then insert the regulating plate 206 and its connecting parts corresponding to the number of steps between the two limiting bumps 3002 from the notch 3003. At this time, the upper surface of the pressing plate 208 is in contact with the lower surface of the electromagnet 207, as Figure 8 shown. By sliding the regulating plate 206 on the limiting bump 3002 and rotating the electromagnet 207 on the regulating plate 206, make each pressing plate 208 in a vertically downward state. Moreover, make each pressing plate 208 above the tread surface of the corresponding step and to the right of the riser surface of the corresponding step, and tighten the locking bolt between the regulating plate 206 and the rotating shaft 20701 to limit the rotational state of the electromagnet 207 on the regulating plate 206, and tighten the locking bolt between the regulating plate 206 and the limiting bump 3002 to limit the sliding state of the regulating plate 206 on the limiting bump 3002. Thus, the installation process of the regulating plate 206 and its connecting parts is completed.

[0032] After the carrier frame 4 is installed, as Figure 8As shown in the figure, at this time, the baffle 205 is located at the uppermost side of the carrier 4. Control the first electric slider 202 to drive the carrier 4 to move upward. Since the support channel steel 3 is in an inclined state, when the carrier 4 moves upward, it also moves to the left side, so that the left baffle 205 is aligned with the two pressing plates 208 in the first row on the lower side of the support channel steel 3. At this time, the lower bottom surface of the height of the baffle 205 is higher than the upper bottom surface height of the pressing plate 208. Control the second electric slider 204 to drive the baffle 205 to move downward, so that the baffle 205 presses the pressing plate 208 downward, so that the connecting rod 20801 on the pressing plate 208 slides in the electromagnet 207, and then the pressing plate 208 presses the shielding cloth 5001 downward until the shielding cloth 5001 fits the lower platform 6001. Then control the two electromagnets 207 in the first row on the lower side of the support channel steel 3 to be magnetized, so that the two electromagnets 207 and the connecting rod 20801 adsorb each other, thereby restricting the sliding of the connecting rod 20801 in the electromagnet 207. At this time, the shielding cloth 5001 is located between the pressing plate 208 and the staircase 6. And, during the downward pressing process of the baffle 205, the baffle 205 synchronously contacts the middle part of the shielding cloth 5001, so that the shielding cloth 5001 is uniformly stressed. When the pressing of the pressing plate 208 is completed, control the second electric slider 204 to drive the baffle 205 to reset upward, and then control the first electric slider 202 to drive the carrier 4 to continue to move to the left side, and then repeat the above operation to press the next row of pressing plates 208. In this way, the baffle 205 presses the pressing plate 208 downward, so that the shielding cloth 5001 fits the staircase 6, eliminating the operation of manually leveling the shielding cloth 5001, thereby reducing the workload of the staff. At the same time, the shielding cloth 5001 is pressed by the pressing plate 208, so as to prevent relative sliding between the shielding cloth 5001 and the staircase 6, resulting in the situation that the staff falls and gets injured. On this basis, the load on the carrier 4 and the support channel steel 3 can be transmitted to the staircase 6 through the pressing plate 208, improving the force distribution of the support channel steel 3, and further increasing the load-bearing capacity of the carrier 4. Here it is explained that by setting the bottom of the pressing plate 208 to be made of wear-resistant rubber material, the friction force between the pressing plate 208 and the shielding cloth 5001 is increased, thereby increasing the anti-slip performance of the shielding cloth 5001 and improving the walking safety of the staff.

[0033] It is also considered that when it is necessary to transport items using the shielding cloth 5001, at this time, control all the electromagnets 207 to stop magnetizing, so that the pressing plate 208 can slide in the electromagnet 207, and then control the electric roller 5 to wind up the shielding cloth 5001, so that the shielding cloth 5001 gradually tightens. At this time, the bottom of the pressing plate 208 is always in contact with the shielding cloth 5001, so as to drive the pressing plate 208 to move upward adaptively through the shielding cloth 5001.

[0034] Embodiment 2 On the basis of Embodiment 1, referring to Figures 9 - 11As shown, it further includes a protection system; the protection system includes a carriage 301 and a protection plate 302; a carriage 301 is connected to each adjusting plate 206 through a spring; a protection plate 302 is jointly and rotatably connected between the carriages 301 on the front-side adjusting plate 206 and the carriages 301 on the rear-side corresponding-position adjusting plates 206 through a torsion spring; each protection plate 302 is in contact with the lower surface of the support channel steel 3; when the shielding cloth 5001 is taut, the protection plate 302 is in contact with the lower surface of the shielding cloth 5001.

[0035] The protection system further includes a linkage rod 303; a linkage rod 303 is fixedly connected to each rotating shaft 20701; an inclined surface 30101 is provided on each carriage 301; each linkage rod 303 is in sliding contact with the inclined surface 30101 on the adjacent carriage 301.

[0036] Furthermore, to improve the ability of the protection plate 302 to absorb and buffer external forces, the protection plate 302 is set to be made of a hollow aluminum alloy plate.

[0037] Furthermore, to increase the friction between the protection plate 302 and the shielding cloth 5001, convex anti-slip stripes are provided on the upper surface of the protection plate 302.

[0038] It is also considered that the edges 6003 of the stairs 6 are relatively fragile. When the decoration workers carry tools and pass by the stairs 6, it is inevitable that the tools will knock against the edges 6003, resulting in damage to the edges 6003 and further causing a decrease in the overall aesthetics of the stairs 6. To avoid such situations, when installing the adjusting plate 206, the carriage 301, the protection plate 302, and the linkage rod 303 are installed in place together as connecting parts. And, the center of the rotating shaft of the protection plate 302 is flush with the tread surface of the corresponding step, and the center of the rotating shaft of the protection plate 302 is located to the right of the edge 6003 of the corresponding step. At the same time, the protection plate 302 is in contact with the lower side of the support channel steel 3, and the protection plate 302 is located below the shielding cloth 5001, as Figure 9As shown, when the pressing plate 208 shown in the figure presses down and fits with the shielding cloth 5001, the shielding cloth 5001 fits with the tread surface of the corresponding step, and during the fitting process of the shielding cloth 5001, it drives the protection plate 302 shown in the figure to rotate downward. The torsion spring between the protection plate 302 and the carriage 301 is compressed, causing the protection plate 302 to fit at the edge 6003, and the protection plate 302 protrudes at the edge 6003. In this way, the edge 6003 is protected by the protection plate 302, thus preventing the tool from directly hitting the edge 6003, and further avoiding the situation where the overall aesthetics of the staircase 6 is reduced. On this basis, when it is necessary to use the shielding cloth 5001 for transporting items, at this time, the shielding cloth 5001 is in a taut state, and the protection plate 302 is reset under the action of the torsion spring. And at this time, the protection plate 302 is located below the shielding cloth 5001, and the protection plate 302 supports the shielding cloth 5001, thereby dispersing the tension received by the shielding cloth 5001 and avoiding the situation where the shielding cloth 5001 is damaged due to excessive local stress, and improving the service life of the shielding cloth 5001.

[0039] On this basis, to improve the ability of the protection plate 302 to absorb and buffer external forces, the protection plate 302 is set to be made of a hollow aluminum alloy plate. In this way, it can ensure that the protection plate 302 itself has a relatively hard strength, and at the same time, it can ensure that when the external force received is too large, the external force impact is buffered through the hollow structure, thereby avoiding damage to the edge 6003.

[0040] Moreover, convex anti-slip stripes are provided on the upper surface of the protection plate 302. When the shielding cloth 5001 fits with the staircase 6, the friction force between the protection plate 302 and the shielding cloth 5001 is increased, thereby increasing the anti-slip performance of the shielding cloth 5001, and thus improving the walking safety of the staff. When the shielding cloth 5001 is taut, by increasing the friction force between the protection plate 302 and the shielding cloth 5001, the sliding or displacement of the shielding cloth 5001 on the protection plate 302 is effectively prevented, thereby enhancing the supporting effect of the protection plate 302.

[0041] It is also considered that when the slope of the staircase 6 changes, the angle between the pressing plate 208 and the adjusting plate 206 changes, which will cause the distance between the pressing plate 208 and the protection plate 302 to change. If the position between the protection plate 302 and the adjusting plate 206 is constant, it is easy for the protection plate 302 to enter the moving range of the pressing plate 208, thereby blocking the movement of the pressing plate 208. Therefore, when the electromagnet 207 drives the rotating shaft 20701 and the pressing plate 208 to rotate, such as Figure 10As shown, when the rotating shaft 20701 located at the rear rotates, with the front-to-back view as the reference, when the slope of the staircase 6 decreases, the rotating shaft 20701 needs to be rotated clockwise, thereby driving the linkage rod 303 to rotate clockwise. By the linkage rod 303 pressing against the inclined surface 30101 of the carriage 301, the carriage 301 slides to the left, and the spring between the carriage 301 and the adjacent adjusting plate 206 is stretched under force. In this way, the protection plate 302 can be rotated outside the moving range of the pressing plate 208, thus avoiding affecting the movement of the pressing plate 208.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional stair lifting device, comprising a base frame (1); wherein: The utility model also comprises a top frame (2), a supporting channel steel (3), a driving assembly, a loading rack (4) and an electric roller (5); the bottom frame (1) is rotatably connected to two front-to-back symmetrical supporting channel steels (3); the supporting channel steels (3) are arranged in parallel with the staircase (6), and the supporting channel steels (3) are located above the staircase (6); a connecting plate (3001) is fixedly connected to the lower sides of the two supporting channel steels (3); the top frame (2) is rotatably connected to the upper sides of the two supporting channel steels (3); the bottom frame (1) and the top frame (2) are connected to the inner The upper frame (2) is provided with an electric vacuum suction cup; a driving assembly is installed on the supporting channel steel (3); a load carrier (4) for carrying heavy objects is connected to the driving assembly; the load carrier (4) is driven by the driving assembly to move up and down along the tilting direction of the supporting channel steel (3); an electric roller (5) is provided in the top frame (2); a shielding cloth (5001) for preventing the surface of the staircase (6) from being worn is rolled up on the roller body of the electric roller (5); the other end of the shielding cloth (5001) is clamped on the connecting plate (3001).

2. A multifunctional stair lifting device according to claim 1, characterized in that: The auxiliary fixing assembly also includes a baffle (205), an adjustment plate (206), an electromagnet (207) and a pressure plate (208); a baffle (205) is slidably connected to the left and right sides of the object carrier (4) to prevent heavy objects from falling out of the object carrier (4); the baffle (205) is connected to the driving assembly; the baffle (205) is driven to move up and down by the driving assembly; each supporting channel steel (3) is provided with two upper and lower symmetrical limit protrusions (3002); a plurality of adjustment plates (206) are slidably connected between the two limit protrusions (3002); the number and distribution spacing of the adjustment plates (206) are consistent with the number and distribution spacing of the steps on the staircase (6); each adjustment plate ( 206) are rotatably connected to an electromagnet (207) via a rotating shaft (20701); the electromagnet (207) is cylindrical; a locking bolt is provided at the connection between the adjustment plate (206) and the limiting protrusion (3002); a locking bolt is also provided at the connection between the adjustment plate (206) and the rotating shaft (20701); each electromagnet (207) is slidably connected to a pressing plate (208) for fixing the shielding cloth (5001); the upper side of the pressing plate (208) is a connecting rod (20801); the connecting rod (20801) passes through the center of the electromagnet (207), and the connecting rod (20801) is made of magnetic material; and a notch (3003) is provided on the lower side of each supporting channel steel (3).

3. A multifunctional stair lifting device according to claim 2, characterized in that: The supporting channel steel (3) is configured as a splicable structure; the supporting channel steel (3) and the bottom frame (1) are fixedly connected by detachable bolts; and the supporting channel steel (3) and the top frame (2) are fixedly connected by detachable bolts.

4. A multifunctional stair lifting device according to claim 3, characterized in that: The driving assembly comprises a first slide rail (201), a first electric slider (202), a second slide rail (203) and a second electric slider (204); each support channel steel (3) is fixedly connected to a first slide rail (201); the first slide rail (201) is a multi-section spliced ​​slide rail; the two first slide rails (201) at the bottom are slidably connected to a first electric slider (202); the two first electric sliders (202) are jointly fixed to the object carrier (4); a plurality of second slide rails (203) are arranged on the object carrier (4); each second slide rail (203) is slidably connected to a second electric slider (204); the two second electric sliders (204) on the left are jointly fixed to the baffle plate (205) on the left; and the two second electric sliders (204) on the right are jointly fixed to the baffle plate (205) on the right.

5. A multifunctional stair lifting device according to claim 1, characterized in that: The shielding cloth (5001) is woven from wear-resistant, high-tensile-strength, waterproof and moisture-proof nylon fibers.

6. A multifunctional stair lifting device according to claim 2, characterized in that: The bottom of the pressing plate (208) is made of wear-resistant rubber material.

7. A multifunctional stair lifting device according to claim 5, characterized in that: The invention also comprises a protection system; the protection system comprises a slide (301) and a protection plate (302); each adjustment plate (206) is connected to a slide (301) via a spring; the slide (301) on the front adjustment plate (206) and the slide (301) on the rear corresponding position adjustment plate (206) are rotatably connected via a torsion spring to a protection plate (302) for protecting the edge of the staircase (6); each protection plate (302) is in contact with the lower surface of the supporting channel steel (3); when the shielding cloth (5001) is tightened, the protection plate (302) is in contact with the lower surface of the shielding cloth (5001).

8. A multifunctional stair lifting device according to claim 7, characterized in that: The protection system further comprises a linkage rod (303); each rotating shaft (20701) is fixedly connected with a linkage rod (303) for preventing the protection plate (302) from blocking the movement of the pressure plate (208); each slide (301) is provided with an inclined surface (30101); and each linkage rod (303) is in sliding contact with the inclined surface (30101) on the adjacent slide (301).

9. A multifunctional stair lifting device according to claim 8, characterized in that: The protection plate (302) is configured to be made of a hollow aluminum alloy plate.

10. A multifunctional stair lifting device according to claim 9, characterized in that: The upper surface of the protection plate (302) is provided with convex anti-slip stripes.

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