A multifunctional stair lift

Abstract

The present invention relates to the technical field of elevators, and particularly to a multifunctional stair lift, which includes a chassis, a top frame, supporting channel steels, etc.; two symmetrically arranged front and rear supporting channel steels are rotatably connected to the chassis; the supporting channel steels are arranged parallel to the stairs and are located above the stairs; a connecting plate is fixedly connected to the lower sides of the two supporting channel steels; a top frame is rotatably connected to the upper sides of the two supporting channel steels; electric vacuum suckers are arranged inside both the chassis and the top frame. Compared with the installation method of conventional stair lifts, the present invention eliminates the operation of drilling holes in the steps or walls, realizes the non-destructive installation of the stair lift, ensures the beauty of the stairs with the completed veneer decoration, improves the quality of the protection of the stair finished products, and uses a shielding cloth to contact the stairs instead of the soles of the staff, thereby avoiding the direct contact between the cement, sand, etc. on the soles and the veneer decoration of the stairs and avoiding subsequent cleaning work on the stair surface.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and particularly relates to a multifunctional staircase lifting device. Background Art

[0002] In the case where heavy objects need to be frequently carried in a staircase, a staircase elevator is usually installed in the staircase to transport heavier objects, thereby reducing the manual handling of heavy objects and improving the transportation efficiency of materials. The conventional installation method of a staircase elevator is usually to fix the slide rail of the staircase elevator to the steps or the wall through bolts. In this way, installation holes need to be opened on the steps or the wall, thus damaging the steps or the wall body. In some special occasions, the conventional staircase elevator 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 the staircase elevator is adopted, the decorated staircase will be damaged.

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

[0004] In order to overcome the disadvantage that the decorative surface of the staircase will be damaged when using the conventional installation method of a staircase elevator to transport heavy objects on a decorated staircase, the present invention provides a multifunctional staircase lifting device.

[0005] The technical implementation solution of the present invention is as follows: A multifunctional staircase lifting device includes a chassis; it also includes a top frame, support channel steels, a driving assembly, a load-carrying frame, and electric rollers; two support channel steels that are symmetrically arranged front and back 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 driving assembly is installed on the support channel steels; a load-carrying frame for carrying heavy objects is connected to the driving assembly; the load-carrying frame is driven by the driving assembly 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 staircase 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 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 load carrier is slidably connected to both the left and right sides of the load carrier; 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 bumps are arranged up and down in each support channel steel; a plurality of adjusting plates are slidably connected between the two limiting bumps; the number and distribution pitch of the adjusting plates are consistent with the number and distribution pitch of the upper steps of 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 bump; 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 arranged 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 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 load carrier; a plurality of second slide rails are arranged on the load carrier; 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 arranged 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 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 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 pressing 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:

[0016] Compared with the installation method of a conventional staircase lift, the operation of drilling holes in the steps or walls is eliminated, achieving a non-destructive installation of the staircase lift, ensuring the beauty of the staircase with the completed veneer decoration, and improving the quality of protection for the finished staircase.

[0017] By using a shielding cloth to contact the staircase instead of the soles of the staff, it is possible to avoid the direct contact between the cement, sand, etc. on the soles and the veneer decoration of the staircase, thus avoiding the subsequent cleaning work on the staircase surface.

[0018] When transporting items down the staircase, the continuous transmission of the items can be achieved through the shielding cloth, eliminating the need for repeated loading, transmission, and unloading operations, and improving the item transportation efficiency.

[0019] By pressing the shielding cloth with the pressing plate, the relative sliding between the shielding cloth and the staircase can be avoided, preventing the situation where the staff may fall and get injured. On this basis, the load on the load-carrying rack and the support channel steel can be transferred to the staircase through the pressing plate, improving the stress distribution of the support channel steel and further increasing the load-carrying capacity of the load-carrying rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the multi-functional staircase lifting device of the present invention;

[0021] Figure 2 is a combined cross-sectional view of the bottom frame and the top frame of the present invention;

[0022] Figure 3 is of the present invention Figure 2 enlarged view of part A;

[0023] Figure 4 is a partial cross-sectional view of the support channel steel of the present invention;

[0024] Figure 5 is a three-dimensional structural schematic diagram of the combined adjusting plate, electromagnet, and pressing plate of the present invention;

[0025] Figure 6 is a three-dimensional structural schematic diagram of the combined load-carrying rack and baffle of the present invention;

[0026] Figure 7 This is the open state diagram of the baffle of the present invention;

[0027] Figure 8 This is the diagram of the baffle being pressed down in the present invention;

[0028] Figure 9 This is the diagram of the shielding cloth fitting the stairs in the present invention;

[0029] Figure 10 This is the three - dimensional structural schematic diagram of the adjusting plate and the protection system of the present invention;

[0030] Figure 11 This is the three - dimensional structural schematic diagram of the combination of the sliding carriage and the protection plate of the present invention.

[0031] The markings of each component in the attached drawings are as follows: 1 - bottom frame, 2 - top frame, 3 - support channel steel, 3001 - connecting plate, 3002 - limiting convex block, 3003 - notch, 4 - load - carrying 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 - sliding carriage, 30101 - inclined plane, 302 - protection plate, 303 - linkage rod. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] Embodiment 1

[0034] Refer to Figures 1-9 As shown, a multifunctional staircase lifting device includes a bottom frame 1; the bottom frame 1 is located at the lower platform 6001 of the stairs 6;

[0035] It also includes a top frame 2, support channel steels 3, a driving assembly, a load rack 4 and an electric roller 5; two front and rear symmetric support channel steels 3 are rotatably connected to the bottom frame 1; the support channel steels 3 are arranged in parallel with the staircase 6, and the support channel steels 3 are located above the staircase 6; a connecting plate 3001 is fixedly connected to the lower sides of the two support channel steels 3 together; a top frame 2 is rotatably connected to the upper sides of the two support channel steels 3 together; the top frame 2 is located at the upper platform 6002 of the staircase 6; electric vacuum suckers are arranged inside both the bottom frame 1 and the top frame 2; a driving assembly is installed on the support channel steel 3; the driving assembly is connected with the load rack 4; the load rack 4 is driven by the driving 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 winds a shielding cloth 5001; the other end of the shielding cloth 5001 is clamped on the connecting plate 3001.

[0036] It also includes an auxiliary fixing assembly; the auxiliary fixing assembly includes a baffle 205, an adjusting plate 206, an electromagnet 207 and a pressing plate 208; a baffle 205 is slidably connected to both the left side and the right side of the load rack 4; the baffle 205 is connected with the driving assembly; the baffle 205 is driven by the driving assembly to move up and down; two vertically symmetric limiting protrusions 3002 are arranged inside each support channel steel 3; a plurality of adjusting plates 206 are slidably connected between the two limiting protrusions 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; locking bolts are arranged at the connection between the adjusting plate 206 and the limiting protrusion 3002; locking bolts are 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; a connecting rod 20801 is arranged on the upper side of the pressing plate 208; the connecting rod 20801 penetrates through the center of the electromagnet 207, and the connecting rod 20801 is made of a magnetic material; a notch 3003 is opened on the lower side of each support channel steel 3.

[0037] Furthermore, to facilitate the installation of the stairlift in a narrow area and improve the practicability of the stairlift, the support channel steel 3 is set as a splicable structure; the support channel steel 3 is fixedly connected to the bottom frame 1 through a detachable bolt; the support channel steel 3 is fixedly connected to the top frame 2 through a detachable bolt.

[0038] The driving assembly 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 spliced 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 rack 4; four second slide rails 203 arranged in a rectangle are provided on the load rack 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 205; the two second electric sliders 204 on the right side are jointly fixedly connected to the right baffle 205.

[0039] 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, and waterproof and moisture-proof properties.

[0040] 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.

[0041] Therefore, the process of installing a stair lift for transporting heavy objects on a stair 6 that has already been veneer decorated 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:

[0042] Since the lengths of each stair 6 to be installed are not the same, therefore, 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 splicable 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 kept consistent with the length of the support channel steel 3. And, 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 rack 4 can be installed separately through the following installation procedures, thereby improving the practicability of the stair lift.

[0043] 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 through 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 form an integral body of the two support channel steels 3. Manually extract 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 carrier frame 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 carrier frame 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 practicability of the stair lift.

[0044] When transporting heavy objects, taking the transportation upward along the stairs 6 as an example for detailed description. At this time, the carrier frame 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 carrier frame 4 are opened. The staff on the lower platform 6001 places the heavy object in the carrier frame 4, and then control the second electric slider 204 to drive the two baffles 205 to move upward, closing the left and right edges of the carrier frame 4. In this way, the four edges of the carrier frame 4 protect the heavy object to prevent the heavy object from falling out of the carrier frame 4 during transportation. Then, control the first electric slider 202 to move upward on the first slide rail 201, thereby driving the carrier frame 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 carrier frame 4, and the staff on the upper platform 6002 removes the heavy object in the carrier frame 4. In this way, the heavy object is transported by the stair lift.

[0045] 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.

[0046] 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.

[0047] 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 flatten the shielding cloth 5001 again, thus increasing the workload of the staff.

[0048] To solve this problem, when installing the staircase lifting device, it is necessary to add an adjusting plate 206 and its connecting parts. The following is the installation process of the adjusting plate 206. After the two support channel steels 3 are installed, the installation of the adjusting plate 206 is carried out at this time. First, the quantity of the adjusting plate 206 and its connecting parts is configured according to the number of steps of the staircase 6, so that the number of the adjusting plate 206 and the pressing plate 208 on each support channel steel 3 is the same as the number of steps. Then, the adjusting plate 206 and its connecting parts corresponding to the number of steps are inserted 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 adjusting plate 206 on the limiting bump 3002 and rotating the electromagnet 207 on the adjusting plate 206, each pressing plate 208 is in a vertically downward state. Moreover, each pressing plate 208 is located above the tread surface of the corresponding step and to the right of the riser surface of the corresponding step. Then, the locking bolt between the adjusting plate 206 and the rotating shaft 20701 is tightened to limit the rotation state of the electromagnet 207 on the adjusting plate 206, and the locking bolt between the adjusting plate 206 and the limiting bump 3002 is tightened to limit the sliding state of the adjusting plate 206 on the limiting bump 3002. In this way, the installation process of the adjusting plate 206 and its connecting parts is completed.

[0049] After the carrier frame 4 is installed, as Figure 8As shown, at this time, the baffle 205 is located at the uppermost side of the loading rack 4. Control the first electric slider 202 to drive the loading rack 4 to move upward. Since the support channel steel 3 is in an inclined state, when the loading rack 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, causing the connecting rod 20801 on the pressing plate 208 to slide within the electromagnet 207, and then the pressing plate 208 presses the shielding cloth 5001 downward until the shielding cloth 5001 fits against 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 adsorb each other with the connecting rod 20801, thereby restricting the sliding of the connecting rod 20801 within the electromagnet 207. At this time, the shielding cloth 5001 is located between the pressing plate 208 and the staircase 6. Moreover, 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 loading rack 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 against 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, which may cause the staff to fall and get injured. On this basis, the load on the loading rack 4 and the support channel steel 3 can be transmitted to the staircase 6 through the pressing plate 208, improving the stress distribution of the support channel steel 3, and further increasing the load-bearing capacity of the loading rack 4. It should be noted here 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.

[0050] 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 being magnetized, so that the pressing plate 208 can slide within the electromagnet 207, and then control the electric roller 5 to wind up the shielding cloth 5001, making the shielding cloth 5001 gradually tightened. At this time, the bottom of the pressing plate 208 is always in contact with the shielding cloth 5001, so that the pressing plate 208 is driven to move upward adaptively by the shielding cloth 5001.

[0051] Embodiment 2

[0052] On the basis of Embodiment 1, referring to Figures 9-11As shown in the figure, 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 rotatably connected between the carriage 301 on the front-side adjusting plate 206 and the carriage 301 on the rear-side corresponding-position adjusting plate 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.

[0053] 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.

[0054] Furthermore, to improve the ability of the protection plate 302 to absorb and buffer external forces, the protection plate 302 is made of a hollow aluminum alloy plate.

[0055] 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.

[0056] It is also considered that the edge 6003 of the staircase 6 is relatively fragile. When the decoration staff passes by the staircase 6 with tools, it is inevitable that the tools will bump into the edge 6003, resulting in damage to the edge 6003 and further reducing the overall aesthetic appearance of the staircase 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 as connecting parts. Moreover, 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 surface 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 protection plate 302 protects the edge 6003, 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, 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 force, and improving the service life of the shielding cloth 5001.

[0057] 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 hollow structure buffers the external force impact, thereby avoiding damage to the edge 6003.

[0058] Moreover, by providing convex anti-slip stripes 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.

[0059] 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. For this reason, when the electromagnet 207 drives the rotating shaft 20701 and the pressing plate 208 to rotate, such as Figure 10As shown in the figure, when the rotating shaft 20701 located at the rear side rotates, with the view from front to back as the reference, when the slope of the staircase 6 decreases, it is necessary to rotate the rotating shaft 20701 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.

[0060] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used 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 recorded 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 within the protection scope of the present invention.

Claims

1. A multifunctional staircase lifting device, comprising a chassis (1); characterized in that: It further includes a top frame (2), support channel steels (3), a driving assembly, a loading rack (4) and electric rollers (5); Two symmetrically arranged support channel steels (3) are rotatably connected to the bottom frame (1) in the front and back; The support channel steels (3) are arranged in parallel with the staircase (6), and the support channel steels (3) are located above the staircase (6); A connecting plate (3001) is fixedly connected to the lower sides of the two support channel steels (3) together; A top frame (2) is rotatably connected to the upper sides of the two support channel steels (3) together; Electric vacuum suckers are arranged inside both the bottom frame (1) and the top frame (2); A driving assembly is installed on the support channel steel (3); The driving assembly is connected with a loading rack (4) for carrying heavy objects; The loading rack (4) is driven by the driving 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); A shielding cloth (5001) for preventing the surface of the staircase (6) from being worn 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). It further includes a protection system; The protection system includes a sliding frame (301) and a protection plate (302); A sliding frame (301) is connected to each adjusting plate (206) through a spring; A protection plate (302) for protecting the edge part of the staircase (6) is rotatably connected between the sliding frames (301) on the front side adjusting plate (206) and the sliding frames (301) on the corresponding position adjusting plate (206) on the rear side through a torsion spring; Each protection plate (302) is attached to the lower surface of the support channel steel (3); When the shielding cloth (5001) is taut; The protection plate (302) is attached to the lower surface of the shielding cloth (5001).

2. The multifunctional stair lift device according to claim 1, characterized in that: It also 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) for preventing heavy objects from falling out of the carrier (4) is slidably connected to both the left and right sides of the carrier (4); the baffle plate (205) is connected to the driving component; the baffle plate (205) is driven to move up and down by the driving component; two symmetrically arranged limiting bumps (3002) are provided in each support channel steel (3) up and down; several 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 stairs (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; locking bolts are provided at the connection between the adjusting plate (206) and the limiting bump (3002); locking bolts are also provided at the connection between the adjusting plate (206) and the rotating shaft (20701); a pressing plate (208) for fixing the shielding cloth (5001) 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 provided at the lower side of each support channel steel (3).

3. A multi-functional stair lift device according to claim 2, characterized in that: The support channel steel (3) is set as a splicable structure; the support channel steel (3) is fixedly connected to the bottom frame (1) through detachable bolts; the support channel steel (3) is fixedly connected to the top frame (2) through detachable bolts.

4. A multifunctional staircase lifting device according to claim 3, characterized in that: 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 lowest first slide rails (201); the two first electric sliders (202) are jointly fixedly connected to the carrier (4); several second slide rails (203) are provided on the 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 baffle plate (205) on the left side; the two second electric sliders (204) on the right side are jointly fixedly connected to the baffle plate (205) on the right side.

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

6. A multifunctional stair lift 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 staircase lifting device according to claim 1, characterized in that: The protection system also includes a linkage rod (303); a linkage rod (303) for preventing the protection plate (302) from blocking the movement of the pressing plate (208) is fixedly connected to each rotating shaft (20701); an inclined surface (30101) is provided on each sliding frame (301); each linkage rod (303) is in sliding contact with the inclined surface (30101) on the adjacent sliding frame (301).

8. A multi-functional stair lift device according to claim 7, characterized in that: The protection board (302) is set to be made of a hollow aluminum alloy plate.

9. A multifunctional staircase lifting device according to claim 8, characterized in that: The upper surface of the protection board (302) is provided with convex anti-slip stripes.

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