A lifting device for lifting scaffold capable of being quickly disassembled and assembled

Abstract

The invention discloses a lifting device for a lifting scaffold that can be quickly disassembled and assembled, and relates to the technical field of scaffold lifting, including a lifting assembly, a fixing mechanism, a supporting assembly, and a reinforcing assembly that cooperate to complete the rapid disassembly and movement of the scaffold. The beneficial effect of the invention is that the lifting assembly is fixed on scaffolds of different sizes by a fixed semicircular plate and a movable semicircular plate, which is convenient for rapid disassembly and assembly while improving the applicability of the device; the movement between the supporting rod and the connecting rod is controlled by a foot pedal and a recovery rod, so as to quickly control the lifting and falling of the scaffold, so that the universal wheel can quickly move the scaffold to a specified position; the lifting assembly is supported and limited by a supporting rod, a connecting sleeve, and a mounting ring, and the supporting position and direction of the reinforcing rod are adjusted according to the construction environment by a rotating frame and an adjusting rod, so that the reinforcing rod, the adjusting rod, and the rotating frame can provide additional support to the scaffold through the lifting assembly to ensure the safety of the construction personnel.

Description

Technical Field

[0001] The invention relates to the technical field of scaffold lifting, and in particular to a lifting device for a lifting scaffold which can be quickly disassembled and assembled. Background Art

[0002] Scaffolding is a temporary structure commonly used in construction. It is mainly used to support workers and materials in order to provide a safe and convenient working environment during construction, maintenance or demolition. It is usually made of metal or wood and has good load-bearing capacity and stability. The pipe scaffolding composed of steel pipes and fasteners has strong flexibility and is suitable for various complex working environments. The scaffolding is equipped with wheels under the scaffolding to facilitate movement on the construction site. It is a commonly used scaffolding now.

[0003] For example, the patent with the authorization announcement number CN118481338B and the authorization announcement date September 13, 2024, and the name of the patent is "A ground scaffolding working platform and working method", this patent only installs multiple wheels under the scaffolding working platform for moving the scaffolding. Another example is a patent with authorization announcement number CN217581106U and authorization announcement date October 14, 2022, entitled "A Ground Scaffolding Working Platform and Working Method". This patent includes four movable components respectively installed on the four support legs at the bottom of the scaffolding frame, and the movable components are respectively composed of a base plate, a universal wheel and a support mechanism fixed under the base plate. The base plate is a square structure, and a square hole for installing the support legs is opened in one corner of the base plate. The universal wheel is arranged in the middle of the bottom surface of the base plate. The support mechanism is composed of two first angle steels and second angle steels of the same structure. The first angle steel and the second angle steel are distributed at right angles, and the contact surfaces of the first angle steel and the second angle steel are hinged by a hinge; it also includes a buckle-type fixing module, which is installed on the side of the base plate and located on both sides of the square hole. The buckle-type fixing module is used to limit the support legs; this device has the advantages of easy movement and fast loading and unloading.

[0004] Although the above-mentioned scaffolding moving device can move the scaffolding by wheels or universal wheels, the wheels or universal wheels of the above-mentioned mobile scaffolding cannot adjust the position height in time. When the scaffolding is transferred, the wheels or universal wheels are in potholes on the road surface, which may easily cause the scaffolding to scrape the bottom and get stuck; and the above-mentioned scaffolding is also provided with a supporting mechanism to support the scaffolding during use, but its supporting mechanism is difficult to accurately adjust according to the construction environment, resulting in insufficient support of the scaffolding, and due to the existence of wheels, it is very easy to cause the scaffolding to move, tilt or even collapse, causing injuries to construction workers. Summary of the invention

[0005] The object of the present invention is to provide a lifting device for a lifting scaffold that can be quickly disassembled and assembled to solve the above-mentioned shortcomings in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A lifting device for a lifting scaffold that can be quickly disassembled and assembled comprises a plurality of lifting devices arranged on the trusses of the lowest layer of the scaffold, wherein the lifting devices comprise a lifting assembly and a supporting assembly;

[0008] A lifting assembly, the lifting assembly includes a fixing mechanism, the fixing mechanism is used to install and fix the lifting assembly on the truss of the scaffolding, a supporting rod is arranged at the lower end of the fixing mechanism, a connecting rod is arranged in a sliding manner inside the supporting rod, a foot pedal is arranged on the connecting rod in a rotatable manner, one end of a connecting piece is arranged in a rotatable manner at the upper end of the foot pedal, a recovery rod is arranged on the connecting piece, a sliding rod is arranged on the other end of the connecting piece in a rotatable manner, the sliding rod is arranged on the supporting rod in a slidable manner, and the central axis of the supporting rod and the central axis of the sliding rod are perpendicular to each other;

[0009] A fixing mechanism, the fixing mechanism comprising a fixed semicircular plate, the fixed semicircular plate is arranged above the supporting rod, a movable semicircular plate is rotatably arranged on the upper side of the fixed semicircular plate, an extension portion is arranged on one side of the fixed semicircular plate and the movable semicircular plate, one end of a locking screw is rotatably arranged in the extension portion on the fixed semicircular plate, and a locking sleeve is arranged on the other end of the locking screw in a threaded manner;

[0010] A support assembly, the support assembly comprising a connecting sleeve, the connecting sleeve is arranged on the upper side of the supporting rod, one end of the supporting rod is arranged on the outer side of the connecting sleeve through a hinge, the other end of the supporting rod is arranged with a mounting ring through a hinge, the mounting ring is sleeved on the scaffold, and the mounting ring is fixed to the scaffold by bolts;

[0011] A reinforcement component, two of which are arranged on each of the support components, and the reinforcement components can support and reinforce the support components and can support the scaffolding to prevent the scaffolding from tilting. The reinforcement component includes a rotating frame, which is sleeved on the outside of the connecting sleeve, and an adjusting rod is slidably arranged on the side of the rotating frame away from the connecting sleeve, and a reinforcement rod is rotatably arranged on the end of the adjusting rod away from the rotating frame.

[0012] As mentioned above, a sliding groove is provided in the middle of the supporting rod, and the sliding rod is arranged in the sliding groove in a sliding manner.

[0013] As mentioned above, the lifting assembly also includes an adjusting screw, which is arranged at the lower end of the connecting rod by threaded cooperation, an adjusting nut is arranged on the outside of the adjusting screw, a mounting plate is arranged below the adjusting screw, a universal wheel is arranged at the lower end of the mounting plate by bolts, and a brake is integrated on the universal wheel.

[0014] As mentioned above, the fixing mechanism also includes a rubber pad, a clamping plate is provided at one end of the rubber pad, the clamping plate is used to clamp the rubber pad, the clamping plate is slidably arranged in the fixed semicircular plate near one end of the extension part, and the rubber pad can cover the inner side of the fixed semicircular plate and the movable semicircular plate.

[0015] As mentioned above, the support rod includes a first rod body, one end of the first rod body is hingedly provided on the outer side of the connecting sleeve, one end of the second rod body is threadedly provided on the other end of the first rod body, the mounting ring is hingedly provided on the other end of the second rod body, and a support nut is provided on the outer side of the second rod body.

[0016] As mentioned above, the reinforcement assembly also includes a locking bolt, which is arranged on one end of the adjusting rod close to the rotating frame by threaded cooperation, and the rotating frame is provided with an installation groove, and the locking bolt is slidably arranged in the installation groove, and a pressure block is provided in the middle of the locking bolt, and the pressure block is used to lock the adjusting rod and the rotating frame.

[0017] As mentioned above, the periphery of the installation groove and the lower end of the pressing block are both configured as rough surfaces.

[0018] As mentioned above, a locking hole is provided at one end of the adjusting rod away from the rotating frame, an adjusting disk is provided at one end of the reinforcing rod close to the adjusting rod, a plurality of adjusting holes are provided on the adjusting disk, and an insert rod is slidably provided in the locking hole.

[0019] As mentioned above, a pressure plate is arranged at the lower end of the reinforcement rod, and the pressure plate is arranged at the lower end of the reinforcement rod through a ball joint.

[0020] In the above technical solution, the beneficial effects of the present invention are:

[0021] 1. The present invention fixes the lifting assembly on scaffolds of different sizes by means of a fixed semicircular plate and a movable semicircular plate, which facilitates quick disassembly and assembly while improving the applicability of the device;

[0022] 2. The present invention provides a supporting rod and a connecting rod that slide against each other, and controls the movement between the two by a foot pedal, so that the extended supporting rod and the connecting rod can raise the scaffold, so that the universal wheel can quickly move the scaffold to a designated position, and the scaffold can be quickly lowered by a recovery rod, so as to support and fix the scaffold;

[0023] 3. The present invention supports and limits the lifting assembly through the support rod, connecting sleeve and mounting ring, so as to avoid the lifting assembly from sliding or deflecting with the scaffolding during use, which makes it difficult for the lifting assembly to lift the scaffolding;

[0024] 4. The present invention adjusts the support position and direction of the reinforcement rod according to the construction environment through the rotating frame and the adjusting rod, so that the reinforcement rod, the adjusting rod and the rotating frame always support and limit the lifting assembly, and the reinforcement rod, the adjusting rod and the rotating frame can provide additional support for the scaffolding through the lifting assembly to ensure the safety of the construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of the lifting device of the lifting scaffold provided by the embodiment of the present invention when in use;

[0027] Figure 2 A top view of a lifting device for a lifting scaffold provided by another embodiment of the present invention when in use;

[0028] Figure 3 A schematic diagram of the three-dimensional structure of a lifting device for a lifting scaffold provided in another embodiment of the present invention;

[0029] Figure 4 A top view of a lifting device for a lifting scaffold provided in another embodiment of the present invention;

[0030] Figure 5 Another embodiment of the present invention provides Figure 4 Sectional view at AA;

[0031] Figure 6 A partial cross-sectional view of a fixing mechanism provided in another embodiment of the present invention;

[0032] Figure 7 Another embodiment of the present invention provides Figure 3 A local enlarged schematic diagram of the M position;

[0033] Figure 8 Another embodiment of the present invention provides Figure 5 A local enlarged schematic diagram of location N.

[0034] Description of reference numerals:

[0035] 1. Lifting assembly; 10. Fixing mechanism; 100. Fixed semicircular plate; 101. Movable semicircular plate; 102. Extension; 103. Locking screw; 104. Locking sleeve; 105. Rubber pad; 106. Clamping plate; 11. Supporting rod; 12. Connecting rod; 13. Foot pedal; 14. Connecting piece; 15. Restoring rod; 16. Sliding rod; 17. Adjusting screw; 18. Adjusting nut; 19. Universal wheel; 190. Brake Car; 2. Support assembly; 20. Connecting sleeve; 21. Support rod; 210. First rod body; 211. Second rod body; 212. Support nut; 22. Mounting ring; 3. Reinforcement assembly; 30. Rotating frame; 31. Adjustment rod; 310. Locking hole; 311. Insertion rod; 32. Reinforcement rod; 320. Adjustment plate; 321. Adjustment hole; 322. Pressure plate; 33. Locking bolt; 330. Pressure block; 34. Mounting groove. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "vertical", "horizontal", "side", "inside", "outside", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] like Figure 1-8 As shown, a lifting device of a lifting scaffold that can be quickly disassembled and assembled is provided in an embodiment of the present invention, comprising a plurality of lifting devices arranged on the trusses of the lowest layer of the scaffold, wherein the lifting device comprises a lifting assembly 1 and a supporting assembly 2;

[0039] A lifting assembly 1, the lifting assembly 1 comprises a fixing mechanism 10, the fixing mechanism 10 is used to install and fix the lifting assembly 1 on the truss of the scaffolding, a supporting rod 11 is arranged at the lower end of the fixing mechanism 10, a connecting rod 12 is arranged in a sliding manner in the supporting rod 11, a foot pedal 13 is arranged on the connecting rod 12 in a rotatable manner, one end of a connecting piece 14 is arranged in a rotatable manner at the upper end of the foot pedal 13, a recovery rod 15 is arranged on the connecting piece 14, a sliding rod 16 is arranged on the other end of the connecting piece 14 in a rotatable manner, the sliding rod 16 is arranged on the supporting rod 11 in a slidable manner, and the central axis of the supporting rod 11 and the central axis of the sliding rod 16 are perpendicular to each other;

[0040] A fixing mechanism 10, wherein the fixing mechanism 10 comprises a fixed semicircular plate 100, wherein the fixed semicircular plate 100 is arranged above the supporting rod 11, wherein a movable semicircular plate 101 is rotatably arranged on the upper side of the fixed semicircular plate 100, wherein an extension portion 102 is arranged on one side of the fixed semicircular plate 100 and the movable semicircular plate 101, wherein one end of a locking screw 103 is rotatably arranged in the extension portion 102 on the fixed semicircular plate 100, and a locking sleeve 104 is arranged on the other end of the locking screw 103 by threaded engagement;

[0041] A support assembly 2, the support assembly 2 comprising a connecting sleeve 20, the connecting sleeve 20 being arranged on the upper side of the supporting rod 11, one end of a supporting rod 21 being arranged on the outer side of the connecting sleeve 20 via a hinge, the other end of the supporting rod 21 being arranged with a mounting ring 22 via a hinge, the mounting ring 22 being sleeved on the scaffold, and the mounting ring 22 being fixed to the scaffold via bolts;

[0042] The reinforcement component 3 includes two reinforcement components 3 disposed on each of the support components 2. The reinforcement components 3 can support and reinforce the support components 2 and can support the scaffolding to prevent the scaffolding from tilting. The reinforcement component 3 includes a rotating frame 30. The rotating frame 30 is sleeved on the outside of the connecting sleeve 20. An adjusting rod 31 is slidably disposed on the side of the rotating frame 30 away from the connecting sleeve 20. A reinforcement rod 32 is rotatably disposed on the end of the adjusting rod 31 away from the rotating frame 30.

[0043] In another embodiment provided by the present invention, a slide groove is provided in the middle of the supporting rod 11, and the sliding rod 16 is slidably disposed in the slide groove;

[0044] The specific implementation is as follows: the sliding rod 16 is set in the sliding groove in a sliding manner, and the sliding rod 16 can rotate in the sliding groove. In this way, when the connecting rod 12 is raised and lowered along the supporting rod 11, the supporting rod 11 can leave a movable margin for the moving stroke of the sliding rod 16 through the sliding groove, thereby avoiding the situation where it is difficult to rotate between the foot pedal 13 and the connecting plate 14 after the supporting rod 11 and the connecting rod 12 are under pressure for a long time.

[0045] In another embodiment provided by the present invention, the lifting assembly 1 further includes an adjusting screw 17, which is arranged at the lower end of the connecting rod 12 by threaded engagement, an adjusting nut 18 is arranged on the outer side of the adjusting screw 17, a mounting plate is arranged below the adjusting screw 17, a universal wheel 19 is arranged at the lower end of the mounting plate by bolts, and a brake 190 is integrated on the universal wheel 19;

[0046] The specific implementation is as follows: in order to adapt to scaffolds of different sizes, so that the lifting assembly 1 can contact the ground to support and limit the scaffold, an adjusting screw 17 is arranged at the lower end of the connecting rod 12 by threaded cooperation, and an adjusting nut 18 is arranged on the adjusting screw 17. In this way, when the scaffold lifting device is used on scaffolds of different sizes, the adjusting screw 17 is rotated according to the size of the scaffold so that the adjusting screw 17 is lifted and lowered along the connecting rod 12 so that the scaffold is used normally. When the lifting assembly 1 is not working, the lower end of the lifting assembly 1, that is, the lower end of the universal wheel 19, just touches the ground. At this time, the lifting stroke of the lifting assembly 1 to the scaffold is at the maximum distance, that is, the lifting stroke of the lifting assembly 1 is After the position of the adjusting screw 17 on the connecting rod 12 is adjusted to determine the lifting distance of the scaffold, the adjusting nut 18 is rotated to make the adjusting nut 18 rise along the adjusting screw 17 and make the upper end of the adjusting nut 18 fit the lower end of the connecting rod 12, so that the adjusting screw 17 is locked and fixed to the lower end of the connecting rod 12 by the adjusting nut 18, so as to avoid relative sliding between the adjusting screw 17 and the connecting rod 12 during the use of the scaffold, thereby affecting the lifting effect of the scaffold by the lifting assembly 1; in addition, the universal wheel 19 can drive the scaffold to move without considering the steering problem, and the brake 190 integrated on the universal wheel 19 can limit the rotation of the universal wheel 19 to avoid unnecessary movement of the scaffold during the use of the scaffold.

[0047] In another embodiment provided by the present invention, the fixing mechanism 10 further includes a rubber pad 105, one end of the rubber pad 105 is provided with a clamping plate 106, the clamping plate 106 is used to clamp the rubber pad 105, the clamping plate 106 is slidably arranged in the fixed semicircular plate 100 at one end close to the extension portion 102, and the rubber pad 105 can cover the inner side of the fixed semicircular plate 100 and the movable semicircular plate 101;

[0048] The specific implementation method is as follows: when using the scaffold lifting device, the lifting assembly 1 needs to be installed on the scaffold through the fixing mechanism 10. Specifically, the fixed semicircular plate 100 and the movable semicircular plate 101 are closed to wrap the scaffold, and when the two are closed to wrap the scaffold, the locking screw 103 is rotated so that it is located between the two extensions 102, and then the locking sleeve 104 is rotated so that the locking sleeve 104 moves along the locking screw 103 and squeezes the two extensions 102, so that the locking screw 103 and the locking sleeve 104 lock and fix the fixed semicircular plate 100 and the movable semicircular plate 101 on the scaffold. In this way, the fixed semicircular plate 100 and the movable semicircular plate 101 lock and fix the lifting assembly 1 on the scaffold through the supporting rod 11 connected thereto. On the scaffold, in addition, when the fixed semicircular plate 100 and the movable semicircular plate 101 are closed to wrap the scaffold, the rubber pad 105 arranged in the fixed semicircular plate 100 can also wrap the scaffold, and the rubber pad 105 can reduce or even avoid the relative sliding between the movable semicircular plate 101, the fixed semicircular plate 100 and the scaffold; the rubber pad 105 will inevitably be damaged after long-term use, and the damaged rubber pad 105 will affect the fixing effect between the fixed semicircular plate 100, the movable semicircular plate 101 and the scaffold. In order to solve this problem, a card plate 106 is provided which is clamped at one end of the fixed semicircular plate 100. The card plate 106 can drive the rubber pad 105 to be quickly disassembled and assembled on the fixed semicircular plate 100, so as to quickly replace the rubber pad 105.

[0049] In another embodiment provided by the present invention, the support rod 21 includes a first rod body 210, one end of the first rod body 210 is provided on the outer side of the connecting sleeve 20 through a hinge, one end of a second rod body 211 is provided on the other end of the first rod body 210 through a threaded fit, the mounting ring 22 is provided on the other end of the second rod body 211 through a hinge, and a support nut 212 is provided on the outer side of the second rod body 211;

[0050] The specific implementation is as follows: the second rod body 211 includes a support screw and a connector, the support screw is rotatably arranged in the connector, and the connector is rotatably arranged on the mounting ring 22, so that when the support rod 21 is used to limit and fix the lifting component 1, the installation position of the mounting ring 22 is first determined, and then the support screw is rotated so that the support screw is rotated and moved in the first rod body 210 through the thread to adjust the total length between the first rod body 210 and the support screw, so that the support screw and the first rod body 210 can fix the lifting component 1 through the supporting rod 11. Fixed on the scaffolding, the support screw and the first rod body 210 can support and limit the lifting component 1 to prevent the lifting component 1 from sliding during use and affecting the effect of the lifting component 1 in lifting the scaffolding. After the position adjustment between the support screw and the first rod body 210 is completed, the support nut 212 is rotated to allow the support nut 212 to rotate and move along the support screw. In this way, when one end of the support nut 212 is in contact with the end face of the first rod body 210, the support screw can be locked and fixed on the first rod body 210, and the installation position of the mounting ring 22 is also determined.

[0051] In another embodiment provided by the present invention, the reinforcement component 3 further includes a locking bolt 33, which is arranged on one end of the adjusting rod 31 close to the rotating frame 30 by means of threaded fit, and the rotating frame 30 is provided with a mounting groove 34, and the locking bolt 33 is slidably arranged in the mounting groove 34, and a pressing block 330 is arranged in the middle of the locking bolt 33, and the pressing block 330 is used to lock the adjusting rod 31 and the rotating frame 30;

[0052] The specific implementation method is as follows: during adjustment, the locking bolt 33 is rotated so that the locking bolt 33 drives the pressure block 330 to move along the adjusting rod 31, thereby making the pressure block 330 away from the rotating frame 30, so that the locking bolt 33 and the pressure block 330 contact and lock the rotating frame 30 and the adjusting rod 31, so that the adjusting rod 31 slides in the rotating frame 30, thereby adjusting the total length between the rotating frame 30 and the adjusting rod 31. At this time, the locking bolt 33 can slide in the mounting groove 34. After the total length adjustment between the adjusting rod 31 and the rotating frame 30 is completed, the locking bolt 33 is rotated in the opposite direction so that the locking bolt 33 drives the pressure block 330 to move along the adjusting rod 31 toward the rotating frame 30, thereby making the pressure block 330 lock and fix the adjusting rod 31 on the rotating frame 30, so as to keep the total length of the adjusting rod 31 and the rotating frame 30 locked, thereby avoiding the total length of the adjusting rod 31 and the rotating frame 30 changing during the use of the scaffolding, which makes it difficult for the reinforcement rod 32 to support the scaffolding, causing the scaffolding to tilt or even fall down.

[0053] In another embodiment provided by the present invention, the periphery of the installation groove 34 and the lower end of the pressing block 330 are both configured as rough surfaces;

[0054] When the locking bolt 33 is rotated to drive the pressing block 330 away from the rotating frame 30, the locking bolt 33 can move synchronously with the adjusting rod 31, and the locking bolt 33 can only slide in the mounting groove 34 when moving. After the total length between the rotating frame 30 and the adjusting rod 31 is adjusted, the locking bolt 33 is rotated in the opposite direction so that the locking bolt 33 drives the pressing block 330 to approach and fit the surface of the rotating frame 30, so that the pressing block 330 locks the position of the rotating frame 30 and the adjusting rod 31. When the pressing block 330 fits the rotating frame 30, the rough surface of the lower end of the pressing block 330 and the rough surface around the mounting groove 34 can reduce or even avoid sliding between the pressing block 330 and the rotating frame 30, that is, the rough surface of the lower end of the pressing block 330 and the rough surface around the mounting groove 34 can avoid sliding between the adjusting rod 31 and the rotating frame 30, so that the reinforcing rod 32 can maintain the support limit for the scaffolding to avoid the scaffolding from tilting or even falling down.

[0055] In another embodiment provided by the present invention, a locking hole 310 is provided at one end of the adjusting rod 31 away from the rotating frame 30, an adjusting disk 320 is provided at one end of the reinforcing rod 32 close to the adjusting rod 31, a plurality of adjusting holes 321 are provided on the adjusting disk 320, and an inserting rod 311 is slidably provided in the locking hole 310;

[0056] The specific implementation is as follows: the locking hole 310 can be aligned with the adjustment hole 321 so that the insertion rod 311 can be inserted into the adjustment holes 321 at different positions, so that the insertion rod 311 can adjust the angle between the reinforcement rod 32 and the adjustment rod 31 through the adjustment hole 321 and the adjustment disk 320, thereby ensuring that the reinforcement rod 32 can always be in close contact with the ground, so that the reinforcement rod 32 and the adjustment rod 31 can always support and limit the scaffolding.

[0057] In another embodiment provided by the present invention, a pressure plate 322 is provided at the lower end of the reinforcement rod 32, and the pressure plate 322 is provided at the lower end of the reinforcement rod 32 through a ball joint;

[0058] The specific implementation is as follows: the pressure plate 322 is used to increase the contact area between the reinforcement rod 32 and the ground, reduce or even avoid the reinforcement rod 32 sinking into the ground, so that the reinforcement rod 32 can maintain the support limit for the scaffolding and avoid the scaffolding from tilting.

[0059] Working principle: first, place the scaffold lifting device under the scaffold, and make the fixed semicircular plate 100 fit on the truss of the scaffold, then rotate the movable semicircular plate 101 so that the movable semicircular plate 101 and the fixed semicircular plate 100 are closed to wrap the truss of the scaffold, after the movable semicircular plate 101 and the fixed semicircular plate 100 are closed, the extensions 102 of the two are close to each other, then rotate the locking screw 103 on the fixed semicircular plate 100 so that the locking screw 103 is in the middle of the two extensions 102, finally rotate the locking sleeve 104 so that the locking sleeve 104 moves along the locking screw 103 and squeezes the extension 102 of the movable semicircular plate 101, so that the locking screw 103 and the locking sleeve 104 lock the movable semicircular plate 101 and the fixed semicircular plate 100 through the extension 102 The scaffold lifting device is formed into a whole, so that the fixed semicircular plate 100 and the movable semicircular plate 101 are installed and fixed on the scaffold through the supporting rod 11, and when the fixed semicircular plate 100 and the movable semicircular plate 101 are closed to wrap the scaffold, the rubber pad 105 arranged in the fixed semicircular plate 100 can also wrap the scaffold, and the rubber pad 105 can reduce or even avoid the relative sliding between the movable semicircular plate 101, the fixed semicircular plate 100 and the scaffold; in order to solve the problem that the rubber pad 105 is damaged after long-term use and affects the fixing effect between the fixed semicircular plate 100, the movable semicircular plate 101 and the scaffold, a clamping plate 106 clamped at one end of the fixed semicircular plate 100 is provided, and the clamping plate 106 can drive the rubber pad 105 to be quickly disassembled and assembled on the fixed semicircular plate 100, so as to quickly replace the rubber pad 105;

[0060] After the scaffold lifting device is installed on the scaffold through the fixed semicircular plate 100 and the movable semicircular plate 101, the mounting ring 22 is sleeved on the vertical rod of the scaffold. After the mounting ring 22 is sleeved, the support screw is rotated so that the support screw rotates and moves in the first rod body 210 through the thread, so as to adjust the total length between the first rod body 210 and the support screw, so that the support screw and the first rod body 210 can support and limit the lifting component 1 through the supporting rod 11, so as to avoid the lifting component 1 from sliding and deflecting during use, thereby affecting the effect of the lifting component 1 in lifting the scaffold. After the position adjustment between the support screw and the first rod body 210 is completed, the mounting ring 22 is locked with bolts. After it is fixed on the vertical rod of the scaffolding and the mounting ring 22 is fixed, the support screw is rotated again to adjust the total length between the support screw and the first rod body 210 to be in the optimal supporting position, that is, the support screw and the first rod body 210 can support and limit the support rod 11, and at the same time will not cause excessive squeezing of the support rod 11 and cause it to tilt. After the position adjustment between the support screw and the first rod body 210 is completed, the support nut 212 is rotated so that the support nut 212 rotates and moves along the support screw, so that when one end of the support nut 212 is attached to the end face of the first rod body 210, the support screw can be locked and fixed on the first rod body 210, reducing or even avoiding the use of the scaffolding lifting device. In addition, in order to adapt to scaffolds of different sizes and enable the lifting assembly 1 to contact the ground to support and limit the scaffold, an adjusting screw 17 is provided at the lower end of the connecting rod 12 by threaded cooperation, and an adjusting nut 18 is provided on the adjusting screw 17. In this way, when the scaffold lifting device is used on scaffolds of different sizes, the adjusting screw 17 is rotated according to the size of the scaffold so that the adjusting screw 17 is lifted and lowered along the connecting rod 12 so that the scaffold is in normal use. When the lifting assembly 1 is not working, the lower end of the lifting assembly 1, that is, the lower end of the universal wheel 19, just touches the ground. At this time, the lifting assembly 1 has no effect on the scaffold. The lifting stroke is at the maximum distance, that is, the lifting stroke of the lifting assembly 1 is the lifting distance of the scaffold. After the position adjustment of the adjusting screw 17 on the connecting rod 12 is completed, the adjusting nut 18 is rotated so that the adjusting nut 18 rises along the adjusting screw 17 and the upper end of the adjusting nut 18 is attached to the lower end of the connecting rod 12, so that the adjusting screw 17 is locked and fixed to the lower end of the connecting rod 12 by the adjusting nut 18, so as to avoid relative sliding between the adjusting screw 17 and the connecting rod 12 during the use of the scaffold, thereby affecting the lifting effect of the lifting assembly 1 on the scaffold; the brake 190 integrated on the universal wheel 19 can limit the rotation of the universal wheel 19 to avoid unnecessary movement during the use of the scaffold;

[0061] When the scaffold is in use, the rotating frame 30 is rotated so that the rotating frame 30 drives the adjusting rod 31 and the reinforcing rod 32 toward the position where support is required, and then the locking bolt 33 is rotated so that the locking bolt 33 drives the pressing block 330 to move along the adjusting rod 31, so that the pressing block 330 is away from the rotating frame 30, so that the locking bolt 33 and the pressing block 330 contact and lock the rotating frame 30 and the adjusting rod 31, so that the adjusting rod 31 slides in the rotating frame 30, thereby adjusting the total length between the rotating frame 30 and the adjusting rod 31. The tightening bolt 33 can slide in the installation groove 34. After the total length between the adjusting rod 31 and the rotating frame 30 is adjusted, the locking bolt 33 is rotated in the opposite direction so that the locking bolt 33 drives the pressing block 330 to move along the adjusting rod 31 toward the rotating frame 30, so that the pressing block 330 locks and fixes the adjusting rod 31 on the rotating frame 30. The locking bolt 33 drives the pressing block 330 to approach and fit the surface of the rotating frame 30 so that the pressing block 330 locks the position of the rotating frame 30 and the adjusting rod 31. At the same time, the pressing block 330 fits the rotating frame 30 The rough surface of the lower end of the pressing block 330 and the rough surface around the mounting groove 34 can reduce or even prevent the sliding between the pressing block 330 and the rotating frame 30, that is, the rough surface of the lower end of the pressing block 330 and the rough surface around the mounting groove 34 can prevent the sliding between the adjusting rod 31 and the rotating frame 30. After the total length of the adjusting rod 31 and the rotating frame 30 is locked, it can be prevented that the total length of the adjusting rod 31 and the rotating frame 30 changes during the use of the scaffolding, which makes it difficult for the reinforcement rod 32 to support the scaffolding; the locking hole 310 can Aligned with the adjustment hole 321, so that the insertion rod 311 is inserted into the adjustment hole 321 at different positions through the locking hole 310, so that the insertion rod 311 adjusts the angle between the reinforcement rod 32 and the adjustment rod 31 through the adjustment hole 321 and the adjustment plate 320, thereby ensuring that the reinforcement rod 32 can always be closely in contact with the ground, and the contact area between the reinforcement rod 32 and the ground is increased by the pressure plate 322, reducing or even avoiding the situation that the reinforcement rod 32 sinks into the ground, so that the reinforcement rod 32 can maintain the support limit for the scaffolding and avoid the scaffolding from tilting;

[0062] When the scaffolding needs to be quickly transferred, it is only necessary to step on the foot pedal 13 with force, so that the foot pedal 13 drives the connecting piece 14 to rotate, thereby making the foot pedal 13 drive the connecting rod 12 to slide along the supporting rod 11, and the total length between the supporting rod 11 and the connecting rod 12 becomes longer, so that the lifting assembly 1 can lift the scaffolding, the supporting assembly 2 and the reinforcing assembly 3 together, leaving only the universal wheel 19 in contact with the ground, at this time, the brake 190 of the universal wheel 19 is released, so that the universal wheel 19 can rotate to quickly transfer the scaffolding to the designated position, and there is no need to disassemble the scaffolding, which is convenient and fast, and shortens the working hours. At the same time, the universal wheel 19 can drive the scaffolding to move without considering the steering problem. After the scaffolding is transferred to the designated position, the recovery rod 15 is stepped on, so that the recovery rod 15 drives the foot pedal 13 to rotate and reset in the opposite direction, and the foot pedal 13 drives the connecting piece 14 to reset in the opposite direction, so that the scaffolding falls and is placed; and when the foot pedal 13 and the recovery rod 15 are stepped on, the sliding rod 16 will move accordingly, and the sliding The rod 16 is arranged in the slide groove in a sliding manner, and the sliding rod 16 can rotate in the slide groove. In this way, when the connecting rod 12 is lifted and lowered along the supporting rod 11, the supporting rod 11 can leave a movable margin for the moving stroke of the sliding rod 16 through the slide groove, avoiding the situation that the supporting rod 11 and the connecting rod 12 are difficult to rotate between the foot pedal 13 and the connecting piece 14 after being compressed for a long time. When the lifting assembly 1 raises the scaffold, due to gravity, the sliding rod 16 will not slide and reset within the movable margin to cause the scaffold to fall. External force must be applied, that is, the sliding rod 16 can be reset when the recovery rod 15 is stepped on; after the recovery rod 15 drives the foot pedal 13 to rotate in the opposite direction and reset, the brake 190 is stepped on again, so that the brake 190 locks the universal wheel 19, so that the brake 190 limits the rotation of the universal wheel 19, avoids unnecessary movement during the use of the scaffold, and adjusts the position of the supporting assembly 2 and the reinforcement assembly 3 again to ensure the supporting effect.

[0063] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lifting device for a lifting scaffold that can be quickly disassembled and assembled, comprising a plurality of lifting devices arranged on the trusses of the lowest layer of the scaffold, the lifting device comprising a lifting assembly (1) and a supporting assembly (2), characterized in that: A lifting assembly (1), the lifting assembly (1) comprising a fixing mechanism (10), the fixing mechanism (10) being used to install and fix the lifting assembly (1) on the truss of the scaffolding, a supporting rod (11) being provided at the lower end of the fixing mechanism (10), a connecting rod (12) being provided in a sliding manner inside the supporting rod (11), a universal wheel (19) being provided below the connecting rod (12), the universal wheel (19) being used to move the scaffolding, a foot pedal (13) being provided on the connecting rod (12) in a rotatable manner, one end of a connecting plate (14) being provided at the upper end of the foot pedal (13) in a rotatable manner, a recovery rod (15) being provided on the connecting plate (14), a sliding rod (16) being provided at the other end of the connecting plate (14) in a rotatable manner, the sliding rod (16) being provided on the supporting rod (11) in a slidable manner, and the central axis of the supporting rod (11) and the central axis of the sliding rod (16) being perpendicular to each other; A fixing mechanism (10), the fixing mechanism (10) comprising a fixed semicircular plate (100), the fixed semicircular plate (100) being arranged above the supporting rod (11), a movable semicircular plate (101) being rotatably arranged on the upper side of the fixed semicircular plate (100), an extension portion (102) being arranged on one side of both the fixed semicircular plate (100) and the movable semicircular plate (101), one end of a locking screw (103) being rotatably arranged in the extension portion (102) on the fixed semicircular plate (100), and a locking sleeve (104) being arranged on the other end of the locking screw (103) by means of threaded engagement; A support assembly (2), the support assembly (2) comprising a connecting sleeve (20), the connecting sleeve (20) being arranged on the upper side of the supporting rod (11), one end of the supporting rod (21) being arranged on the outer side of the connecting sleeve (20) via a hinge, the other end of the supporting rod (21) being arranged with a mounting ring (22) via a hinge, the mounting ring (22) being sleeved on the scaffold, and the mounting ring (22) being fixed to the scaffold via bolts; A reinforcement assembly (3), wherein two reinforcement assemblies (3) are provided on each of the support assemblies (2), and the reinforcement assembly (3) can support and reinforce the support assembly (2) and can support the scaffold to prevent the scaffold from tilting. The reinforcement assembly (3) comprises a rotating frame (30), the rotating frame (30) is sleeved on the outside of the connecting sleeve (20), an adjusting rod (31) is slidably provided on a side of the rotating frame (30) away from the connecting sleeve (20), and a reinforcement rod (32) is rotatably provided on an end of the adjusting rod (31) away from the rotating frame (30).

2. The lifting device of a rapidly dismantled lifting scaffold according to claim 1 is characterized in that: A sliding groove is provided in the middle of the supporting rod (11), and the sliding rod (16) is arranged in the sliding groove in a sliding manner.

3. The lifting device of a rapidly dismantled lifting scaffold according to claim 1 is characterized in that: The lifting assembly (1) further comprises an adjusting screw (17), wherein the adjusting screw (17) is arranged at the lower end of the connecting rod (12) by means of threaded engagement, an adjusting nut (18) is arranged on the outer side of the adjusting screw (17), a mounting plate is arranged below the adjusting screw (17), the universal wheel (19) is arranged at the lower end of the mounting plate by means of bolts, and a brake (190) is integrated on the universal wheel (19).

4. The lifting device of a rapidly dismantled lifting scaffold according to claim 1 is characterized in that: The fixing mechanism (10) further comprises a rubber pad (105), one end of the rubber pad (105) being provided with a clamping plate (106), the clamping plate (106) being used to clamp the rubber pad (105), the clamping plate (106) being slidably arranged inside the fixed semicircular plate (100) at one end close to the extension portion (102), and the rubber pad (105) is capable of covering the inner sides of the fixed semicircular plate (100) and the movable semicircular plate (101).

5. The lifting device of a rapidly dismantled lifting scaffold according to claim 1 is characterized in that: The support rod (21) comprises a first rod body (210), one end of the first rod body (210) is provided on the outer side of the connecting sleeve (20) via a hinge, one end of a second rod body (211) is provided on the other end of the first rod body (210) via a threaded fit, the other end of the second rod body (211) is provided with the mounting ring (22) via a hinge, and a support nut (212) is provided on the outer side of the second rod body (211).

6. The lifting device of a rapidly dismantled lifting scaffold according to claim 1 is characterized in that: The reinforcement assembly (3) further comprises a locking bolt (33), wherein the locking bolt (33) is arranged at one end of the adjustment rod (31) close to the rotating frame (30) by means of threaded engagement, the rotating frame (30) is provided with a mounting groove (34), the locking bolt (33) is slidably arranged in the mounting groove (34), and a pressing block (330) is arranged in the middle of the locking bolt (33), the pressing block (330) being used to lock the adjustment rod (31) and the rotating frame (30).

7. The lifting device of a rapidly dismantled lifting scaffold according to claim 6, characterized in that: The periphery of the installation groove (34) and the lower end of the pressing block (330) are both configured as rough surfaces.

8. The quickly detachable lifting scaffolding lifting device according to claim 1 is characterized in that: A locking hole (310) is provided at one end of the adjusting rod (31) away from the rotating frame (30), an adjusting disk (320) is provided at one end of the reinforcing rod (32) close to the adjusting rod (31), a plurality of adjusting holes (321) are provided on the adjusting disk (320), and an inserting rod (311) is slidably provided in the locking hole (310).

9. The lifting device of a rapidly dismantled lifting scaffold according to claim 1, characterized in that: A pressure plate (322) is provided at the lower end of the reinforcement rod (32), and the pressure plate (322) is arranged at the lower end of the reinforcement rod (32) via a ball joint.

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