A combined lifting platform

Abstract

The application discloses a combined lifting platform, which comprises a supporting bottom plate, wheels arranged at four corners of the bottom plate, fixed supporting frames arranged at two ends of the upper part of the supporting bottom plate in the transverse direction, fixed connecting plates arranged between the top ends of the opposite inner sides of the fixed supporting frames, a bearing table slidingly connected between the fixed supporting frames, a control device arranged on the inner surface of the lateral side of the bearing table, and anti-falling groups arranged at the four corners of the bottom of the bearing table. The application has the advantages of reasonable design, stable and firm overall structure, fixed and limited bearing table during normal construction use, ensured safety for construction use, fixed and limited bearing table in case of broken and fallen hoisting ropes during the lifting of the bearing table, avoided falling of the bearing table, and the structure formed by the rotary supporting plate, the lifting supporting plate and the inserted rod arranged in the bearing table, which can meet various construction demands and has a wide application range.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction equipment, in particular to a combined lifting platform. BACKGROUND

[0002] At present, in the process of domestic building construction, quality and quantity have always been the focus of building construction enterprises. With the development of the country and the progress of society, more and more large public venues are being built. As the interlayer spacing becomes higher, the traditional scaffolding is time-consuming and laborious to set up and move during equipment installation and structural construction maintenance. On the other hand, when simply climbing with a ladder, it is not possible to place operating tools and materials, so it cannot be used for large equipment installation and repair work. In some working conditions, a rented lift truck is used for climbing maintenance, which is relatively high in cost, especially in areas with limited space where the lift truck cannot enter and be used.

[0003] Chinese patent CN115140687A discloses a combined movable lifting platform. The platform is flexible and can be used repeatedly through the walking wheels of the base. After the platform is moved to the construction work site, the lifting motor is used to retract and release the lifting cable to set the support platform at the target height, so that the construction personnel can quickly climb and work. On the other hand, the support platform can store a large amount of tools, materials and equipment, thereby facilitating the operation of the construction personnel and improving the construction efficiency. When adjusting the setting height of the support platform, the reset motor 235 is turned in the opposite direction to release the lifting cable 236, the support leg is turned down by the downward pushing of the pushing piece 234, the lower end of the support leg 233 is supported at the intersection of the tooth root of the tooth 212 and the column 21, and the support leg 233 at both ends of the support beam 23 is arranged in an eight-shaped manner to prevent the support beam 23 from falling. The support beam is prevented from falling under the support of the support legs at both ends, ensuring the safety of the construction personnel.

[0004] Although the support platform 3 in the above-mentioned patent is lifted to a specified height, the lower end of the support leg 233 is supported at the intersection of the tooth root of the tooth 212 and the column 21, and the support leg 233 at both ends of the support beam 23 is arranged in an eight-shaped manner to prevent the support beam 23 from falling; however, during the lifting of the support platform 3, if the lifting cable breaks, there is no protective means, which will cause the support platform 3 to fall and cause certain safety hazards. In addition, the structure of the support platform 3 is relatively simple and cannot meet the normal construction use requirements, which needs to be further developed and improved. SUMMARY

[0005] The purpose of the present application is to solve the problems of the prior art, such as the lack of protective means in the combined lifting platform, the easy falling of the support platform, the certain safety hazards, and the simple structure of the support platform, which cannot meet the normal construction use requirements, and to provide a combined lifting platform.

[0006] The application realizes the above-mentioned purpose through the following technical scheme: a combined lifting platform, comprising a supporting bottom plate, wheels are arranged at the bottom corners of the supporting bottom plate, fixed supporting frames are arranged at the horizontal ends of the upper part of the supporting bottom plate, fixed connecting plates are arranged between the top ends of the opposite inner sides of the fixed supporting frames, a bearing table is slidably connected between the fixed supporting frames, a control device is arranged on the inner surface of the horizontal side of the bearing table, anti-falling assemblies are arranged at the bottom corners of the bearing table, lifting assemblies are arranged between the horizontal ends of the supporting bottom plate and the fixed supporting frames, and one end of the lifting assembly is connected with the bearing table.

[0007] Further, the fixed supporting frame comprises a supporting frame body, the bottom ends of the supporting frame body are fixedly connected with the supporting bottom plate, the top ends of the inner sides of the supporting frame body are connected with the fixed connecting plate, a plurality of fixed limiting protrusions are equidistantly arranged on the outer surfaces of the longitudinal sides of the supporting frame body from top to bottom, rectangular grooves are arranged on the inner surfaces of the longitudinal sides of the supporting frame body, bearing sliding grooves are equidistantly arranged on the inner surfaces of the horizontal sides of the rectangular grooves from top to bottom, a plurality of T-shaped limiting blocks are equidistantly arranged in the rectangular grooves from top to bottom, the bottom ends of the T-shaped limiting blocks respectively extend into the bearing sliding grooves on the two sides of the rectangular grooves, an insertion slot is arranged on the inner surface of the bottom of the bearing sliding groove, a first spring is arranged in the insertion slot, a guide insertion rod is arranged on the inner side of the first spring, and one end of the guide insertion rod is connected with the T-shaped limiting block.

[0008] Further, the bearing table comprises a bearing table body, supporting side plates are arranged at the horizontal ends of the top of the bearing table body, baffle plates are arranged at the longitudinal ends of the top of the bearing table body, the horizontal side of the bearing table body and the supporting side plate are slidably connected with the inner surface of the horizontal side of the supporting frame body, lifting rings are arranged on the outer surfaces of the horizontal sides of the bearing table body, supporting tables are arranged at the longitudinal ends of the bottom of the bearing table body, a rotating supporting plate is hingedly connected to the top of the baffle plate at the longitudinal end of the bearing table body, a lifting supporting plate is arranged above the baffle plate at the other end, safety rings are arranged on the inner surfaces of the horizontal sides of the supporting side plates, the control device is arranged on the inner surface of the supporting side plate on the side of the safety ring, a tool storage box is arranged below the control device, safety protection plates are arranged at the horizontal ends of the inner surface of the rotating supporting plate, a connecting ring is arranged on the inner side of the rotating supporting plate, a safety rope is arranged between the connecting ring and the safety ring, a handle is arranged on the inner surface of the horizontal side of the safety protection plate, the ends of the lifting supporting plate are slidably connected with the inner surface of the supporting frame body, insertion rods are equidistantly arranged at the bottom of the lifting supporting plate, one end of the insertion rod is insertionally connected with the baffle plate, fixed limiting blocks are arranged on the inner surfaces of the rotating supporting plate and the lifting supporting plate, and fixed adjusting bolts are threadedly connected with the fixed limiting blocks.

[0009] Further, the support side plate top is provided with a limiting assembly, the limiting assembly comprises a support connecting plate, the bottom of the support connecting plate is fixedly connected with the support side plate top, a limiting connecting plate is arranged on the side of the support connecting plate away from the support frame body, limiting plug-in plates are arranged on the two sides of the support frame body in the longitudinal direction, the limiting plug-in plates are plug-in connected with the support connecting plate, the plug-in position of the support connecting plate on the limiting plug-in plate and the top of the limiting plug-in plate are respectively provided with a first limiting plug-in hole and a second limiting plug-in hole, and a limiting rod is plug-in installed between the first limiting plug-in hole and the second limiting plug-in hole.

[0010] Further, the anti-falling assembly comprises a fixed plug-in seat, the top of the fixed plug-in seat is connected with the bottom of the bearing table body, a guide plug-in plate is plug-in installed on the fixed plug-in seat, a moving limiting plate is vertically arranged on one end of the guide plug-in plate close to the support frame body, a telescopic device is arranged on the side of the fixed plug-in seat, one end of the telescopic device is connected with the moving limiting plate, a limiting support plate is arranged on the side of the moving limiting plate away from the fixed plug-in seat and corresponding to the position of the rectangular groove in the longitudinal direction, buffer friction blocks are arranged on the two sides of the limiting support plate in the transverse direction, a prismatic guide column is arranged on one end of the buffer friction block, a fixed limiting nut is threadedly installed on one end of the prismatic guide column penetrating through the moving limiting plate, a second spring is arranged between the buffer friction block and the moving limiting plate on the prismatic guide column, the moving limiting plate has a mounting groove at one end close to the rectangular groove, and a plurality of guide rollers are equidistantly arranged in the mounting groove from top to bottom.

[0011] Further, the lifting assembly comprises a lifting motor and a support plug-in column, the lifting motor is installed on the top of the support bottom plate, a sling is installed on the lifting motor, the support plug-in column is plug-in connected with the top of the support frame body, a fixed limiting plate is installed on one end of the support plug-in column above the support frame body, a fixed pulley is installed on one end of the support plug-in column below the support frame body, one end of the sling is connected with the lifting ring penetrating through the fixed pulley, pressure sensors are arranged on the top of the support frame body on the two sides of the support plug-in column in the longitudinal direction, and the top of the pressure sensor is in contact with the fixed limiting plate.

[0012] Further, the support bottom plate top is provided with an anti-tilting assembly on the two ends inside the fixed support frame in the longitudinal direction, the anti-tilting assembly comprises a rotating shaft arranged on the top of the support bottom plate, an anti-tilting support plate is installed on the circumferential surface of one side of the rotating shaft, an adjusting screw is threadedly installed on one end of the anti-tilting support plate, an adjusting handle is arranged on the top of the adjusting screw, an anti-slip support base is arranged on the bottom of the adjusting handle, and the outer surface of the adjusting handle and the bottom of the anti-slip support base are provided with anti-slip patterns.

[0013] Further, the support bottom plate and the support frame body, the support frame body and the fixed connecting plate, the bearing table body and the support side plate, the bearing table body and the baffle, and the bearing table body and the fixed socket are connected by welding.

[0014] Further, the support frame body outer surface of the support bottom plate transverse one end is provided with a push hand, the support bottom plate bottom transverse is close to the push hand one end two the wheel is universal brake wheel, the other end two the wheel is directional wheel.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] 1, the present application design is reasonable, the overall structure is stable and firm, can be fixed in position to the bearing table in normal construction use, guarantee for construction use the safety;In the case of hoisting cable fracture and falling, the bearing table can be fixed in position in an emergency, avoiding the falling of the bearing table, further guaranteeing the safety of construction use;In addition, the structure formed by the rotating support plate, the lifting support plate and the plug-in rod arranged in the bearing table can meet various construction needs, and has a wide range of applications;

[0017] 2, the fixed support frame is provided with a fixed limiting protrusion, which can cooperate with the limiting assembly, support and bear the limiting plug-in plate plugged into the support connecting plate, thereby realizing the fixed limiting of the lifting bearing table to the specified height, ensuring the stability and firmness in normal use, and improving the safety in use;The T-shaped limiting block arranged in the fixed support frame can support and bear the limiting support plate entering the rectangular groove in the case of hoisting cable fracture or falling, and can also buffer the falling limiting support plate under the cooperation of the bearing sliding groove, the plug-in groove, the first spring and the guide plug-in rod, avoiding the rigid collision between the limiting support plate and the T-shaped limiting block and causing the fracture of the limiting support plate, and further improving the safety in use;

[0018] 3, the structure formed by the rotating support plate, the lifting support plate and the plug-in rod arranged in the bearing table can meet various construction needs, and the baffle can also store related materials for construction, and the tool storage box is convenient for carrying various construction tools;The safety ring, the safety protection plate and the connecting ring structure arranged therein can improve the personal safety of construction personnel during construction operation, and the support table arranged therein can protect the anti-falling assembly from colliding with the support bottom plate;In addition, the limiting assembly arranged in the bearing table can cooperate with the fixed limiting protrusion to realize the fixed limiting of the lifting bearing table to the specified height, ensuring the stability and firmness in normal use.

[0019] 4. When the pressure sensor detects a significant change in the pressure value when the sling breaks or slips, the telescopic device in the fall arrestor can immediately drive the moving limit plate forward. This allows the buffer friction block to first contact the support frame body to generate friction, reducing the descent speed of the platform. Only then will the limit support plate enter the rectangular groove, where it is supported by the T-shaped limit platform. This prevents the limit support plate from exerting a large impact force on the T-shaped limit block, which could cause the limit support plate to break. This, in turn, prevents the platform from falling during lifting and lowering. In addition, the guide rollers facilitate a smoother entry of the limit support plate into the rectangular groove.

[0020] 5. The tension borne by the sling in the lifting device during the lifting process can be converted into pressure by the support plug column and the fixed limit plate and act on the pressure sensor. The data detected by the pressure sensor can monitor the integrity of the sling in real time. It can feed back to the control device as soon as the sling breaks or slips. The control device controls the anti-fall component to act on the bearing platform and fix the bearing platform. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is the left view of the present invention;

[0023] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0024] Figure 4 This is a three-dimensional structural diagram of the fixed support frame in this invention;

[0025] Figure 5 This is a partial sectional view of the fixed support frame in this invention;

[0026] Figure 6 This is a three-dimensional structural diagram of the support platform in this invention;

[0027] Figure 7 This is an exploded view of the limiting component in this invention;

[0028] Figure 8 This is a three-dimensional structural diagram of the fall protection component in this invention;

[0029] Figure 9 This is a three-dimensional structural diagram of the anti-tilt component in this invention.

[0030] In the figure: 1 - support bottom plate, 2 - wheel, 3 - fixed support frame, 4 - fixed connecting plate, 5 - bearing table, 6 - control device, 7 - anti-falling assembly, 8 - lifting assembly, 9 - anti-inclination assembly, 10 - push handle;

[0031] 301 - support frame body, 302 - fixed limiting protrusion, 303 - rectangular groove, 304 - bearing sliding groove, 305 - T-shaped limiting block, 306 - plug-in slot, 307 - first spring, 308 - guide plug-in rod;

[0032] 501 - bearing table body, 502 - support side plate, 503 - baffle, 504 - lifting ring, 505 - support table, 506 - rotary support plate, 507 - lifting support plate, 508 - safety ring, 509 - tool storage box, 510 - safety protection plate, 511 - connecting ring, 512 - handle, 513 - plug-in rod, 514 - fixed limiting block, 515 - fixed adjusting bolt, 516 - limiting assembly;

[0033] 5161 - support connecting plate, 5162 - limiting connecting plate, 5163 - limiting plug-in plate, 5164 - first limiting plug-in hole, 5165 - second limiting plug-in hole, 5166 - limiting rod;

[0034] 701 - fixed plug-in seat, 702 - guide plug-in plate, 703 - moving limiting plate, 704 - telescopic device, 705 - limiting support plate, 706 - buffer friction block, 707 - prismatic guide column, 708 - fixed limiting nut, 709 - second spring, 710 - mounting groove, 711 - guide roller.

[0035] 801 - lifting motor, 802 - support plug-in column, 803 - sling, 804 - fixed limiting plate, 805 - fixed pulley, 806 - pressure sensor;

[0036] 901 - rotary shaft, 902 - anti-inclination support plate, 903 - adjusting screw, 904 - adjusting handle, 905 - anti-slip support base. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0038] In the description of the present application, it is understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0039] In combination Figures 1 to 2 The combination lifting platform shown comprises a support base plate 1, wheels 2 are arranged at the bottom corners of the support base plate 1, fixed support frames 3 are arranged at the transverse ends of the upper part of the support base plate 1, fixed connecting plates 4 are arranged between the top ends of the opposite inner sides of the fixed support frames 3, a bearing table 5 is slidably connected between the fixed support frames 3, a control device 6 is arranged on the inner surface of the transverse side of the bearing table 5, anti-falling assemblies 7 are arranged at the bottom corners of the bearing table 5, lifting assemblies 8 are arranged between the transverse ends of the support base plate 1 and the fixed support frames 3, and one end of the lifting assemblies 8 is connected with the bearing table 5.

[0040] As Figures 4 to 5As shown, the fixed support frame 3 comprises a support frame body 301, the bottom ends of which are fixedly connected with the support bottom plate 1, and the inner top end of the support frame body 301 is connected with the fixed connection plate 4, reinforcing the stability and firmness of the structure of the support frame body 301; a plurality of fixed limiting protrusions 302 are equidistantly arranged on the outer surfaces of the longitudinal two sides of the support frame body 301 from top to bottom, which cooperate with the limiting assembly 516 to ensure the stability and firmness of the normal use of the bearing table 5 during construction, avoid falling, and improve the safety of use; the inner surfaces of the longitudinal two sides of the support frame body 301 are both provided with a rectangular groove 303, the inner surfaces of the transverse two sides of the rectangular groove 303 are both equidistantly provided with a bearing sliding groove 304 from top to bottom, a plurality of T-shaped limiting blocks 305 are equidistantly arranged in the rectangular groove 303 from top to bottom, the bottom ends of the T-shaped limiting blocks 305 respectively extend into the bearing sliding grooves 304 on the two sides of the rectangular groove 303, the inner surface of the bottom of the bearing sliding groove 304 is provided with a plug-in groove 306, the plug-in groove 306 is provided with a first spring 307, the inner side of the first spring 307 is provided with a guide plug-in rod 308, in addition, a damper is further arranged between the inner surface of the bottom of the bearing sliding groove 304 and the bottom of the T-shaped limiting block 305, one end of the guide plug-in rod 308 is connected with the T-shaped limiting block 305, wherein the T-shaped limiting block 305 can support and bear the limiting support plate 705 entering the rectangular groove 303 in the case of breakage or falling of the sling 803, and can also play a certain buffering effect on the falling limiting support plate 705 under the cooperation of the bearing sliding groove 304, the plug-in groove 306, the first spring 307, the damper and the guide plug-in rod 308, avoiding rigid collision between the limiting support plate 705 and the T-shaped limiting block 305 and causing breakage of the limiting support plate 705.

[0041] As Figure 6As shown, the bearing table 5 comprises a bearing table body 501, both ends of the top of the bearing table body 501 are provided with support side plates 502, both ends of the top of the bearing table body 501 are provided with baffles 503, one side of the bearing table body 501 and the support side plate 502 are slidably connected with the inner surface of one side of the support frame body 301, both outer surfaces of the bearing table body 501 are provided with lifting rings 504, which cooperate with the support frame body 301 and the lifting assembly 9 to realize the normal lifting of the bearing table body 501; both ends of the bottom of the bearing table body 501 are provided with support tables 505 to avoid collision between the anti-falling assembly 7 and the support bottom plate 1, and to protect the anti-falling assembly 7; the top of the baffle 503 at one end of the bearing table body 501 is hingedly connected with a rotating support plate 506, the baffle 503 at the other end is provided above with a lifting support plate 507, both inner surfaces of one side of the support side plate 502 are provided with safety rings 508, the control device 6 is arranged on the inner surface of the support side plate 502 on one side of the safety ring 508, the tool storage box 509 is arranged below the control device 6, both ends of the inner surface of the rotating support plate 506 are provided with safety protection plates 510, the inner side of the rotating support plate 506 located at the safety protection plate 510 is provided with a connecting ring 511, a safety rope is arranged between the connecting ring 511 and the safety ring 508, a handle 512 is arranged on one side of the inner surface of the safety protection plate 510, both ends of the lifting support plate 507 are slidably connected with the inner surface of the support frame body 301, the bottom of the lifting support plate 507 is equidistantly provided with plug-in rods 513, one end of the plug-in rod 513 is plug-in connected with the baffle 503, both inner surfaces of the rotating support plate 506 and the lifting support plate 507 are provided with fixed limiting blocks 514, the fixed limiting blocks 514 are threadedly connected with fixed adjusting bolts 515, which are suitable for different needs of operation during construction and improve the safety of construction use.

[0042] As Figure 7As shown, the top of the support side plate 502 is provided with a limiting assembly 516, which includes a support connecting plate 5161, the bottom of which is fixedly connected with the top of the support side plate 502, and the support connecting plate 5161 is provided with a limiting connecting plate 5162 away from the side of the support frame body 301, and the limiting connecting plate 5162 is provided with a limiting plug-in plate 5163 on both sides of the longitudinal direction of the support frame body 301, the limiting plug-in plate 5163 is plug-in connected with the support connecting plate 5161, and the plug-in position of the support connecting plate 5161 and the top of the limiting plug-in plate 5163 are respectively provided with a first limiting plug-in hole 5164 and a second limiting plug-in hole 5165, and the first limiting plug-in hole 5164 and the second limiting plug-in hole 5165 are plug-in installed with a limiting rod 5166, the limiting plug-in plate 5163 plug-in into the support connecting plate 5161 is supported by the fixed limiting protrusion 302, and the first limiting plug-in hole 5164, the second limiting plug-in hole 5165 and the limiting rod 5166 ensure the stability of the position of the limiting plug-in plate 5163 and the limiting connecting plate 5162, so that the stability and firmness of the normal use of the bearing table 5 during construction can be ensured, the falling situation can be avoided, and the safety of use is improved.

[0043] As Figure 8As shown, the anti-falling assembly 7 includes a fixed socket 701 connected to the bottom of the bearing table body 501, a guide socket plate 702 is installed in the fixed socket 701, the guide socket plate 702 is vertically provided with a moving limiting plate 703 near one end of the support frame body 301, the fixed socket 701 is provided with an extension device 704 on one side, one end of the extension device 704 is connected with the moving limiting plate 703, the moving limiting plate 703 is provided with a limiting support plate 705 on the side away from the fixed socket 701 corresponding to the position of the rectangular groove 303, after the pressure sensor 8406 in the lifting assembly 8 detects that the sling 803 is broken or falls off, the extension device 704 will drive the moving limiting plate 703 to move forward, so that the limiting support plate 705 extends into the rectangular groove 303, and the T-shaped limiting block 305 supports and bears the limiting support plate 705, thereby fixing and limiting the bearing table 5 in time when the sling 803 is broken or falls off, avoiding the falling of the bearing table 5; the limiting support plate 705 is provided with a buffer friction block 706 on both sides, one end of the buffer friction block 706 is provided with a prismatic guide column 707, one end of the prismatic guide column 707 is screwed with a fixed limiting nut 708 through the moving limiting plate 703, the prismatic guide column 707 is provided with a second spring 709 between the buffer friction block 706 and the moving limiting plate 703, which can make the buffer friction block 706 contact with the support frame body 301 before the limiting support plate 705 extends into the rectangular groove 303, and the friction generated after the contact can reduce the descending speed of the bearing table 5, thereby reducing the impact force of the limiting support plate 705 on the T-shaped limiting block 305 when the limiting support plate 705 enters the rectangular groove; the limiting support plate 705 is provided with a mounting groove 710 near one end of the rectangular groove 303, a plurality of guide rollers 711 are equidistantly arranged in the mounting groove 710 from top to bottom, which further facilitates the limiting support plate 705 to enter the rectangular groove 303.

[0044] As Figures 2 to 3As shown, the lifting assembly 8 comprises a lifting motor 801 mounted on the top of the support base plate 1, a lifting cable 803 mounted on the lifting motor 801, and a support plug-in post 802 plug-in connected with the top of the support frame body 301. The support plug-in post 802 is provided with a fixed limiting plate 804 at one end above the support frame body 301, and a fixed pulley 805 at one end below the support frame body 301. One end of the lifting cable 803 passes through the fixed pulley 805 and is connected with the lifting ring 504. The top of the support frame body 301 on the longitudinal two sides of the support plug-in post 802 is provided with a pressure sensor 806 in contact with the fixed limiting plate 804. The lifting cable 803 is retracted and released by the lifting motor 801 to realize the lifting of the loading platform 5. During the lifting of the loading platform 5, according to the principle of force action, the fixed pulley 805 will also bear a certain downward tension. Under the transmission of the support plug-in post 802 and the fixed limiting plate 804, this part of force will act on the pressure sensor 806, and then the tension state of the lifting cable is monitored in real time by the pressure sensor 806.

[0045] As shown in Figure 1 and Figure 9 , the top of the support base plate 1 is provided with a anti-tilting assembly 9 at the longitudinal two ends inside the fixed support frame 3. The anti-tilting assembly 9 comprises a rotating shaft 901 arranged on the top of the support base plate 1, an anti-tilting support plate 902 mounted on the circumferential surface of one side of the rotating shaft 901, an adjusting screw rod 903 threadedly mounted at one end of the anti-tilting support plate 902, an adjusting handle 904 arranged on the top of the adjusting screw rod 903, and an anti-skid support base 905 arranged on the bottom of the adjusting screw rod 903. The outer surface of the adjusting handle 904 and the bottom of the anti-skid support base 905 are provided with anti-skid patterns, which can support the device as a whole and avoid tilting.

[0046] The support bottom plate 1 and the support frame body 301, the support frame body 301 and the fixed connecting plate 4, the bearing table body 501 and the support side plate 502, the bearing table body 501 and the baffle 503 and the bearing table body 501 and the fixed plug-in seat 701 are connected through welding, so that the stability and firmness of the connection structure are ensured, and the safety and service life are improved; the outer surface of the support frame body 301 at the transverse one end of the support bottom plate 1 is provided with a push hand 10, the two wheels 2 at the bottom of the support bottom plate 1 and close to the push hand 10 at the transverse one end are universal brake wheels, and the two wheels 2 at the other end are directional wheels, so that the device is conveniently moved to different positions for use; the telescopic device 704, the lifting motor 801 and the pressure sensor 806 are electrically connected with the control device 6, so that the working state of the telescopic device 704 and the lifting motor 801 is controlled, and the signal transmitted by the pressure sensor 806 is received, wherein the telescopic device 704 is one of a pneumatic cylinder, a hydraulic cylinder or an electric telescopic rod, the lifting motor 801 comprises a servo motor with a brake, and a winding roller with a sling 803 is mounted on the servo motor.

[0047] In use, the materials and tools available for construction are placed between the baffles and the tool storage box, then the construction personnel enter between the baffles on the upper part of the bearing table body, connect one end of the safety rope for high-altitude operation on the body to the safety ring, then control the lifting motor to tighten the sling through the control device, drive the bearing table as a whole under the cooperation of the fixed pulley, and after rising to the specified height position, insert the limiting plug-in plate into the support connecting plate, so that one end of the limiting plug-in plate is located on the fixed limiting protrusion, then insert the limiting rod between the first limiting hole and the second limiting hole to fix and limit the bearing table; then adjust the height of the lifting support plate by adjusting the fixed adjusting bolt according to the actual use, or install the safety rope between the safety ring and the connecting ring and lower the rotating support plate to perform construction work, and after the construction is completed, the above steps are reversed; in the process of normal lifting of the bearing table, if the sling is broken or falls off, the tension of the sling on the fixed pulley will be greatly reduced, and then under the conduction of the support plug-in column, the pressure of the fixed limiting plate on the pressure sensor will also be greatly reduced, at this time the pressure sensor will detect the signal of data change and send it to the control device, the control device will control the telescopic device to drive the moving limiting plate to advance in the first time, after the moving limiting plate advances, the first to contact the support frame body is the buffer friction block, the friction force generated between the buffer friction block and the support frame body reduces the speed of the bearing table descending, avoiding the large impact force of the limiting support plate driving the T-shaped limiting block after directly entering the rectangular groove, then the limiting support plate continues to advance in the direction of the rectangular groove, if it cannot enter when encountering the side edge of the T-shaped limiting block, it will enter the rectangular groove below the T-shaped limiting block under the guidance of the guide roller, until one end of the limiting support plate enters the inside of the rectangular groove and the guide roller contacts the inner surface of the longitudinal side of the rectangular groove, the telescopic device stops working, the T-shaped limiting block below supports and lifts the limiting support plate, and the T-shaped limiting block plays a certain buffering role on the falling limiting support plate under the cooperation of the bearing sliding groove, the plug-in groove, the first spring and the guide plug-in rod, avoiding the rigid collision between the limiting support plate and the T-shaped limiting block and causing the limiting support plate to break, then the bearing table falling due to the breaking of the sling can be intercepted and limited, avoiding the falling of the bearing table.

[0048] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A combined lifting platform comprising a support base plate (1) provided with wheels (2) at the corners of the bottom, characterized in that: The supporting bottom plate (1) upper transverse both ends are provided with fixed support frame (3), the fixed support frame (3) relative inner side top between are provided with fixed connecting plate (4), the fixed support frame (3) between slidingly connected with bearing table (5), the bearing table (5) transverse one side inner surface is provided with control device (6), the bearing table (5) bottom four corners are provided with anti-falling assembly (7), the supporting bottom plate (1) transverse both ends with the fixed support frame (3) between are provided with lifting assembly (8), the lifting assembly (8) one end is connected with the bearing table (5); The fixed support frame (3) includes support frame body (301), the support frame body (301) bottom both ends are fixedly connected with the supporting bottom plate (1), the support frame body (301) inner side top is connected with the fixed connecting plate (4), the support frame body (301) longitudinal both sides outer surfaces are provided with a plurality of fixed limiting protrusions (302) from top to bottom equidistantly, the support frame body (301) longitudinal both sides inner surfaces are provided with rectangular recess (303), the rectangular recess (303) transverse both sides inner surfaces are provided with bearing sliding groove (304) from top to bottom equidistantly, the rectangular recess (303) is provided with a plurality of T type limit block (305) from top to bottom equidistantly, the T type limit block (305) bottom both ends respectively extend into the bearing sliding groove (304) inside in the rectangular recess (303) both sides, the bearing sliding groove (304) bottom inner surface is provided with the plug-in groove (306), the plug-in groove (306) is provided with first spring (307), the first spring (307) inner side is provided with guide plug-in rod (308), the guide plug-in rod (308) one end is connected with the T type limit block (305) The carrying table (5) includes a carrying table body (501), both top transverse ends of the carrying table body (501) are provided with support side plates (502), both top longitudinal ends of the carrying table body (501) are provided with baffle plates (503), both lateral sides of the carrying table body (501) and the support side plates (502) are slidably connected with the inner surfaces of the lateral sides of the support frame body (301), both outer surfaces of the lateral sides of the carrying table body (501) are provided with lifting rings (504), both bottom longitudinal ends of the carrying table body (501) are provided with support tables (505), the top of the baffle plate (503) at one longitudinal end of the carrying table body (501) is hingedly connected with a rotary support plate (506), the baffle plate (503) at the other longitudinal end is provided above with a lifting support plate (507), the inner surfaces of both lateral sides of the support side plates (502) are provided with safety rings (508), the control device (6) is arranged on the inner surface of the support side plate (502) on one side of the safety ring (508), a tool storage box (509) is arranged below the control device (6), both transverse ends of the inner surface of the rotary support plate (506) are provided with safety protection plates (510), the inner side of the rotary support plate (506) is provided with a connecting ring (511) on the inner side of the safety protection plate (510), a safety rope is arranged between the connecting ring (511) and the safety ring (508), a handle (512) is arranged on the inner surface of one lateral side of the safety protection plate (510), both ends of the lifting support plate (507) are slidably connected with the inner surface of the support frame body (301), equidistantly arranged plug-in rods (513) are arranged at the bottom of the lifting support plate (507), one end of the plug-in rod (513) is plug-in connected with the baffle plate (503), the inner surfaces of the rotary support plate (506) and the lifting support plate (507) are both provided with fixed limiting blocks (514), the fixed limiting blocks (514) are threadedly connected with fixed adjusting bolts (515). The support side plate (502) top is provided with a limiting assembly (516), the limiting assembly (516) includes support connecting plate (5161), the support connecting plate (5161) bottom and the support side plate (502) top fixed connection, the support connecting plate (5161) transversely away from the support frame body (301) one side is provided with limiting connecting plate (5162), the limiting connecting plate (5162) is located the support frame body (301) both sides longitudinally and is provided with limiting plug-in board (5163), the limiting plug-in board (5163) and the support connecting plate (5161) plug-in connection, the support connecting plate (5161) is located the plug-in position of the limiting plug-in board (5163) and the limiting plug-in board (5163) top is provided with first limiting plug-in hole (5164) and second limiting plug-in hole (5165) respectively, the first limiting plug-in hole (5164) and the second limiting plug-in hole (5165) are inserted and installed limiting rod (5166).

2. A combination lift platform according to claim 1, wherein The anti-falling assembly (7) includes a fixed socket (701), the fixed socket (701) top is connected with the bearing table body (501) bottom, the fixed socket (701) is inserted and installed with a guide plug-in board (702), the guide plug-in board (702) is vertically provided with a moving limiting plate (703) near one end of the support frame body (301), the fixed socket (701) is provided with a telescopic device (704) on one lateral side, one end of the telescopic device (704) is connected with the moving limiting plate (703), the moving limiting plate (703) is provided with a limiting support plate (705) on the side away from the fixed socket (701) longitudinally, the limiting support plate (705) is provided with a buffer friction block (706) on both lateral sides, one end of the buffer friction block (706) is provided with a prismatic guide column (707), one end of the prismatic guide column (707) passes through the moving limiting plate (703) and is screwed with a fixed limiting nut (708), the prismatic guide column (707) is provided with a second spring (709) between the buffer friction block (706) and the moving limiting plate (703), the limiting support plate (705) is provided with a mounting groove (710) near one end of the rectangular recess (303), a plurality of guide rollers (711) are equidistantly arranged in the mounting groove (710) from top to bottom.

3. A combination lift platform according to claim 2, wherein The lifting assembly (8) comprises a lifting motor (801) and a supporting plug-in post (802), the lifting motor (801) is installed at the top of the supporting bottom plate (1), a sling (803) is installed on the lifting motor (801), the supporting plug-in post (802) is in plug-in connection with the top of the supporting frame body (301), a fixed limiting plate (804) is installed at one end of the supporting plug-in post (802) which is above the supporting frame body (301), a fixed pulley (805) is installed at one end of the supporting plug-in post (802) which is below the supporting frame body (301), one end of the sling (803) passes through the fixed pulley (805) and is connected with the lifting ring (504), pressure sensors (806) are arranged at the top of the supporting frame body (301) on the longitudinal both sides of the supporting plug-in post (802), and the top of the pressure sensor (806) is in contact with the fixed limiting plate (804).

4. The combination lift platform of claim 1, wherein The longitudinal both ends of the supporting bottom plate (1) inside the fixed supporting frame (3) are provided with anti-tilt assemblies (9), the anti-tilt assembly (9) comprises a rotating shaft (901) arranged at the top of the supporting bottom plate (1), an anti-tilt supporting plate (902) is installed on the circumferential surface of one side of the rotating shaft (901), an adjusting lead screw (903) is screw-installed at one end of the anti-tilt supporting plate (902), an adjusting handle (904) is arranged at the top of the adjusting lead screw (903), an anti-skid supporting base (905) is arranged at the bottom of the adjusting lead screw (903), and the outer surface of the adjusting handle (904) and the bottom of the anti-skid supporting base (905) are provided with anti-skid lines.

5. The combination lift platform of claim 2, wherein The supporting bottom plate (1) and the supporting frame body (301), the supporting frame body (301) and the fixed connecting plate (4), the bearing table body (501) and the supporting side plate (502), the bearing table body (501) and the baffle (503), and the bearing table body (501) and the fixed plug-in base (701) are connected through welding.

6. The combination lift platform of claim 1, wherein The outer surface of the supporting frame body (301) of the lateral one end of the supporting bottom plate (1) is provided with a push hand (10), the two wheels (2) at the bottom of the supporting bottom plate (1) which are close to the push hand (10) on one end are universal brake wheels, and the two wheels (2) on the other end are directional wheels.

Images