Folding lifting device

Abstract

This invention discloses a folding lifting device, characterized by: comprising a set of lifting frame assemblies; the lifting frame assembly includes several lifting frames, several connecting rods, several movable casters, several guide wheels, and several movable traveling wheels; one end of each connecting rod is hinged to a lifting frame, and the other end is hinged to a movable caster; each lifting frame includes two sets of lifting column units and a fixed plate; each lifting column unit includes a vertical guide column, an inclined guide column, and a hanging plate; the vertical guide column is provided with a groove; the guide wheels are fixed to the lower end of the lifting column unit and can roll along the surface of the lifting column unit; the movable traveling wheels are fixedly disposed at the lower end of the lifting column unit. The beneficial effects of this invention are that the folding lifting device can effectively reduce the vertical height space during the lifting process, reducing construction costs; the folding mechanism utilizes the swing of the connecting rods, has a simple structure, and the debugging and installation process is simple.

Description

Technical Field

[0001] The invention relates to a lifting device, in particular to a folding lifting device. Background Art

[0002] Many props in stage machinery need to be raised and lowered to make full use of relatively limited space during the performance period, such as performance space and viewing space. Therefore, during the period when props do not need to participate in the performance, props, as an entity, always need to occupy a certain space. If the props need to be raised and lowered to a relatively high distance, the resulting vertical space requirements are also high; and when the length, width, and depth dimensions are relatively small, the overall utilization of the space is relatively unreasonable, which on the one hand increases the demand for building space in the height direction, and the higher the height, the greater the construction cost; on the other hand, it will also bring great difficulties to the early installation, debugging, and later operation and maintenance. Summary of the invention

[0003] In order to solve the above existing problems, the present invention provides a folding lifting device, characterized in that: it comprises a lifting frame assembly; the lifting frame assembly comprises a plurality of lifting frames, a plurality of connecting rods, a plurality of movable hanging wheels, a plurality of guide wheels, and a plurality of movable walking wheels; one end of the connecting rod is hingedly connected to a lifting frame, and the left and right sides of the other end are respectively hingedly fixed to the movable hanging wheels; the lifting frame comprises two sets of lifting column units and at least one fixed plate; the two sets of lifting column units are connected by the fixed plate; the lifting column unit comprises a section of vertical guide column, a section of inclined guide column, and a hanging plate; the connecting rod is hingedly connected to the lower end of the lifting frame; the vertical guide column is provided with a groove; The groove surface parts of the two groups of lifting column units are arranged opposite to each other; the mobile hanging wheel is adapted to the groove, embedded in the groove of the adjacent lifting frame, and located above the connecting rod; the hanging plate is arranged at the upper end of the vertical guide column; the space between the hanging plates of the lifting frame can accommodate the spatial structure of the connecting rod; the guide wheel is fixed to the side of the lifting column unit, located at the lower end of the lifting column unit, and can roll along the surface of the lifting column unit of the adjacent lifting frame; the mobile walking wheel is fixedly arranged at the lower end of the lifting column unit, and the mobile walking wheels are arranged in two parallel groups, and the parallel space distance between the two groups can accommodate the width dimension of the lifting frame.

[0004] Furthermore, the hanging plate is embedded in the groove.

[0005] Furthermore, a fixing plate is provided at the lower end of the lifting column unit, and the fixing plate is provided with a through hole.

[0006] Furthermore, it also includes a hinge shaft, which passes through the through hole and hinges the connecting rod and the lifting frame.

[0007] Furthermore, it also includes two groups of lifting frame assemblies placed side by side on the left and right; a plurality of connecting beams are arranged between the lifting frame assemblies.

[0008] Furthermore, the lifting column unit is composed of channel steel.

[0009] Furthermore, it also includes an LED screen; the LED screen is fixedly arranged on the crossbeam; and is on the same side as the guide wheel.

[0010] Furthermore, the movable hanging wheel is provided with a rim.

[0011] Furthermore, the guide wheel roller part is made of engineering plastic.

[0012] The principle of the present invention is: the lifting frame is lifted from left to right in sequence. During the lifting process, the guide wheel moves upward along the vertical guide column, and the mobile hanging wheel rises accordingly. When it rises to the hanging plate position, the mobile hanging wheel stops continuing to rise due to the limited position, and the lifted lifting frame continues to rise. During the lifting process, the connecting rod swings around the mobile hanging wheel, and the guide wheel rolls along the inclined guide column. At the same time, the mobile walking wheel is displaced. When the connecting rod is in a vertical state, the adjacent lifting frames are lifted in sequence to complete the lifting of the folding lifting device. During the descent process, the lifting frame that was lifted last is lowered first. Under the action of the inclined guide column, the guide wheel guides the lifting frame where it is located to continue to descend to the ground along the inclined guide column, so as to avoid being affected by the lower position space of the lifting frame that descended first during the descent process.

[0013] The beneficial effects of the present invention are as follows: the folding lifting device can well reduce the height space in the vertical direction during the lifting process, thereby reducing the construction cost. The folding lifting device utilizes the swing of the connecting rod, has a simple structure, and a simple debugging and installation process. When the folding lifting device is used to install the LED screen, since it can be lifted and lowered, it can avoid the possibility of damage caused by bad weather outdoors, thereby ensuring safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of the initial state of the folding lifting device of the present invention;

[0015] Figure 2 For the above Figure 1 Rear view of

[0016] Figure 3 A three-dimensional schematic diagram of the folding lifting device of the present invention in the lifting and lowering state;

[0017] Figure 4 It is a front view of the folding lifting device of the present invention in a raised state;

[0018] Figure 5 For the above Figure 4 AA section view;

[0019] Figure 6 A diagram showing the descending process of the folding lifting device of the present invention;

[0020] Figure 7 A state diagram of the folding lifting device of the present invention when the lifting frame is lowered;

[0021] Figure 8 This is a state diagram of the folding lifting device of the present invention when the two lifting frames are lowered;

[0022] Fig. 9 A three-dimensional schematic diagram of the lifting frame of the present invention;

[0023] Fig.10 For the above Figure 2 BB cross-sectional view;

[0024] Fig.11 It is a rear axonometric view of the folding lifting device of the present invention;

[0025] Fig.12 For the above Fig.10 CC section view;

[0026] Fig.13 is a schematic enlarged perspective view of the rotating shaft of the present invention;

[0027] Fig.14 It is a schematic enlarged perspective view of the mobile hanging wheel of the present invention;

[0028] Fig.15 It is a schematic enlarged perspective view of the connecting rod described in the present invention. DETAILED DESCRIPTION

[0029] Combined with Figures 1 to 15, further explain the present invention, the folding lifting device is characterized in that: it includes a group of lifting frame assembly 1; the lifting frame assembly includes a plurality of lifting frames 2, a plurality of connecting rods 3, a plurality of mobile hanging wheels 4, a plurality of guide wheels 5, and a plurality of mobile walking wheels 6; one end of the connecting rod is hingedly connected to a lifting frame, and the left and right sides of the other end are respectively hingedly fixed to the mobile hanging wheels; the lifting frame includes two groups of lifting column units 7 and at least one fixed plate 8; the two groups of lifting column units are connected by the fixed plate; the lifting column unit includes a section of vertical guide column 71, a section of inclined guide column 72, and a hanging plate 73; the connecting rod is hingedly connected to the lower end of the lifting frame; the vertical guide column is provided with Groove 74; the groove surface parts of the two groups of lifting column units are arranged relatively to each other; the movable hanging wheel is adapted to the groove, embedded in the groove of the adjacent lifting frame, and located above the connecting rod; the hanging plate is arranged at the upper end of the vertical guide column; the space between the hanging plates of the lifting frame can accommodate the spatial structure of the connecting rod; the guide wheel is fixed to the side of the lifting column unit, located at the lower end of the lifting column unit, and can roll along the surface of the lifting column unit of the adjacent lifting frame; the movable walking wheel is fixedly arranged at the lower end of the lifting column unit, and the movable walking wheels are arranged in two parallel groups, and the parallel space distance between the two groups can accommodate the width dimension of the lifting frame.

[0030] Furthermore, the hanging plate is embedded in the groove.

[0031] Furthermore, a fixing plate 9 is provided at the lower end of the lifting column unit, and a through hole 91 is provided on the fixing plate.

[0032] Furthermore, it also includes a hinge shaft 10, which passes through the through hole and hinges the connecting rod and the lifting frame.

[0033] Furthermore, it also includes two groups of lifting frame assemblies placed side by side on the left and right; a plurality of connecting beams 11 are arranged between the lifting frame assemblies.

[0034] Furthermore, the lifting column unit is composed of channel steel.

[0035] Furthermore, it also includes an LED screen 12; the LED screen is fixedly arranged on the crossbeam; and is on the same side as the guide wheel.

[0036] Furthermore, the movable hanging wheel is provided with a rim 13.

[0037] Furthermore, the guide wheel roller part is made of engineering plastic.

Claims

1. A folding lifting device, characterized in that: The lifting frame comprises a group of lifting frame assemblies; the lifting frame assembly comprises a plurality of lifting frames, a plurality of connecting rods, a plurality of mobile hanging wheels, a plurality of guide wheels, and a plurality of mobile walking wheels; one end of the connecting rod is hingedly connected to a lifting frame, and the left and right sides of the other end are respectively hingedly fixed to the mobile hanging wheels; the lifting frame comprises two groups of lifting column units and at least one first fixing plate; the two groups of lifting column units are connected through the first fixing plate; a second fixing plate is arranged at the lower end of the lifting column unit, and a through hole is arranged on the second fixing plate; the lifting column unit comprises a section of vertical guide column, a section of inclined guide column, and a hanging plate; and also comprises a hinge shaft, the connecting rod is hingedly connected to the lower end of the lifting frame; the hinge shaft is disposed at the through hole , the connecting rod and the lifting frame are hingedly connected; the vertical guide column is provided with a groove; the groove surface parts of the two groups of lifting column units are arranged relatively to each other; the mobile hanging wheel is adapted to the groove, embedded in the groove of the adjacent lifting frame, and is located above the connecting rod; the hanging plate is provided at the upper end of the vertical guide column; the hanging plate is embedded in the groove; the guide wheel is fixed to the side of the lifting column unit, located at the lower end of the lifting column unit, and rolls along the surface of the lifting column unit of the adjacent lifting frame; the mobile walking wheel is fixedly provided at the lower end of the lifting column unit, and the mobile walking wheels are arranged in two parallel groups, and the parallel space distance between the two groups accommodates the width dimension of the lifting frame.

2. The folding lifting device according to claim 1, characterized in that: It also includes two groups of lifting frame assemblies placed side by side on the left and right sides; a plurality of connecting beams are arranged between the lifting frame assemblies.

3. The folding lifting device according to claim 2, characterized in that: The lifting column unit is composed of channel steel.

4. The folding lifting device according to claim 3, characterized in that: The movable hanging wheel is provided with a wheel rim.

5. The folding lifting device according to claim 4, characterized in that: The guide wheel roller part is made of engineering plastics.

6. The folding lifting device according to any one of claims 2 to 5, characterized in that: It also includes an LED screen; the LED screen is fixedly arranged on the crossbeam and on the same side as the guide wheel.

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