A transfer trolley for structural member shoring installation

Abstract

The application provides a transfer trolley for structural member top support installation, which comprises a trolley seat, wheels installed on the trolley seat, a loading platform arranged on the upper side of the trolley seat, a first lifting device arranged at the middle of the front end of the trolley seat and between the trolley seat and the loading platform, a second lifting device arranged at one side of the rear end of the trolley seat and between the trolley seat and the loading platform, and a third lifting device arranged at the other side of the rear end of the trolley seat and between the trolley seat and the loading platform. In the transfer trolley for structural member top support installation, the loading platform has a large movement amount in five degrees of freedom directions due to the wheels and the three lifting devices, so that the five degrees of freedom adjustment of the structural member on the loading platform is facilitated, the height and angle adjustment of the structural member is realized, and the installation and disassembly of the structural member are facilitated. Moreover, the loading platform can be moved from the bottom to the top for installation.

Description

Technical Field

[0001] This invention relates to the field of structural component installation and assembly technology, and in particular to a transfer trolley for installing structural component top supports. Background Technology

[0002] Transfer trolleys are widely used for short-distance transportation of various testing devices. They are typically set up within the testing area to assist in the disassembly, installation, and short-distance transfer of structural components. Currently, the installation methods for non-standard structural components are diverse, with some requiring bottom-up installation, but these components are difficult to install using hoisting methods. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a transfer trolley for the installation of structural component supports that overcomes or at least partially solves the above problems. It can solve the problem of installation and disassembly of structural components that cannot be hoisted, thereby facilitating the installation and disassembly of structural components and improving installation and disassembly efficiency.

[0004] Specifically, the present invention provides a transfer trolley for installing structural support, comprising:

[0005] A vehicle seat, on which wheels are mounted;

[0006] A loading platform is disposed on the upper side of the seat;

[0007] A first lifting device is disposed at the center of the front end of the seat and between the seat and the platform; the lower end of the first lifting device is rotatably mounted on the seat about a horizontal axis, and the upper end of the first lifting device is rotatably mounted on the platform about a vertical axis.

[0008] The second lifting device is disposed on one side of the rear end of the seat and between the seat and the platform; the lower end of the second lifting device is mounted to the seat through a first universal hinge structure, and the upper end of the second lifting device is mounted to the platform through a second universal hinge structure.

[0009] The third lifting device is located on the other side of the rear end of the seat and between the seat and the platform; the lower end of the third lifting device is mounted to the seat via a third universal joint structure, and the upper end of the third lifting device is mounted to the platform via a fourth universal joint structure.

[0010] Optionally, both the first universal joint structure and the third universal joint structure include:

[0011] A first connecting seat is fixedly installed on the vehicle seat;

[0012] A first rotating shaft is rotatably mounted on the first connecting seat;

[0013] A second rotating shaft is rotatably mounted on the first rotating shaft, and the axis of the second rotating shaft is in the same plane as the axis of the first rotating shaft; the lifting device is fixedly or rotatably mounted on the second rotating shaft; or, the second rotating shaft is fixedly mounted on the first rotating shaft, and the axis of the second rotating shaft is in the same plane as the axis of the first rotating shaft; the lifting device is rotatably mounted on the second rotating shaft.

[0014] The axis of the first rotating shaft is parallel to the horizontal axis, which extends in the front-back direction.

[0015] Optionally, both the second universal joint structure and the fourth universal joint structure are ball joints.

[0016] Optionally, the first lifting device, the second lifting device, and the third lifting device each include:

[0017] The second connecting seat has a lifting cylinder, and the lifting cylinder is provided with threads;

[0018] A lifting screw, which extends into the lifting cylinder and is threadedly connected to the lifting cylinder.

[0019] Optionally, the transfer trolley for installing the structural support further includes:

[0020] A first top plate is fixedly connected to the lower side of the platform; a rotating cylinder is provided on the lower side of the first top plate; the upper end of the lifting screw of the first lifting device is inserted into the rotating cylinder and rotatably connected to the rotating cylinder, so that the upper end of the first lifting device is rotatably mounted on the platform around a vertical axis.

[0021] The second top plate is fixedly connected to the lower side of the platform; the upper end of the lifting screw of the second lifting device is provided with a ball joint groove, and the corresponding ball joint is fixedly connected to the lower side of the second top plate, and the ball joint is installed in the ball joint groove.

[0022] The third top plate is fixedly connected to the lower side of the platform; the upper end of the lifting screw of the third lifting device is provided with a ball joint groove, and the corresponding ball joint is fixedly connected to the lower side of the third top plate, and the ball joint is installed in the ball joint groove.

[0023] Optionally, the transfer trolley for installing the structural support further includes:

[0024] A first top plate is fixedly connected to the lower side of the platform; a rotating cylinder is provided on the lower side of the first top plate; the upper end of the lifting screw of the first lifting device is inserted into the rotating cylinder and rotatably connected to the rotating cylinder, so that the upper end of the first lifting device is rotatably mounted on the platform around a vertical axis.

[0025] The second top plate is fixedly connected to the lower side of the platform; the corresponding ball joint is fixedly connected to the upper end of the lifting screw of the second lifting device, and a ball joint groove is provided on the lower side of the second top plate, and the ball joint is installed in the ball joint groove.

[0026] The third top plate is fixedly connected to the lower side of the platform; the corresponding ball joint is fixedly connected to the upper end of the lifting screw of the third lifting device, and a ball joint groove is provided on the lower side of the third top plate, and the ball joint is installed in the ball joint groove.

[0027] Optionally, the lifting screw is provided with a rotating arm, which is horizontally positioned.

[0028] Optionally, the wheel is a universal wheel device with brakes.

[0029] The transfer trolley for structural component support installation of this invention, due to its wheels, three lifting devices, and the special connection method between the three lifting devices and the seat and platform, allows the platform to have a large range of movement in all five degrees of freedom. This facilitates the five-degree-of-freedom adjustment of the structural components on the platform, enabling adjustments to the height and angle of the structural components, thus facilitating installation and disassembly. Furthermore, the platform allows for bottom-up installation, solving the problem of installing and disassembling structural components that cannot be hoisted, thus improving installation and disassembly efficiency.

[0030] Furthermore, in the transfer trolley for installing structural components using top supports, the lifting device of the present invention includes a lifting screw, a ball joint, and a rotating cylinder. This allows the lifting screw to extend or retract without considering the impact of the loading platform on its rotation, eliminating the need for a dedicated connecting device between the lifting screw and the loading platform to allow the lifting screw to rotate. In other words, the ball joint and rotating cylinder do not affect the rotation of the lifting screw, while also facilitating the disassembly and installation of structural components. This dual-purpose design fully utilizes the structural features, simplifies the structure, and results in a simple and compact design.

[0031] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0032] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0033] Figure 1 This is a schematic structural diagram of a transfer trolley for mounting structural components according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic structural diagram of a transfer trolley for mounting structural components according to an embodiment of the present invention, which includes a first lifting device.

[0035] Figure 3 This is a schematic structural diagram of a transfer trolley for mounting structural components according to an embodiment of the present invention, which includes a first lifting device.

[0036] Figure 4 This is a schematic structural diagram of a transfer trolley for mounting structural components according to an embodiment of the present invention, which includes a first lifting device.

[0037] Figure 5 This is a schematic exploded view of the first universal joint structure in a transfer trolley for structural support installation according to an embodiment of the present invention.

[0038] Figure 6 This is a schematic structural diagram of a caster wheel device in a transfer trolley for supporting the installation of structural components, according to an embodiment of the present invention. Detailed Implementation

[0039] The following reference Figures 1 to 6 This invention describes a transfer trolley for mounting structural supports according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0040] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Figure 1 This is a schematic structural diagram of a transfer trolley for mounting structural components according to an embodiment of the present invention, such as... Figure 1 As shown, and with reference Figures 2 to 4This invention provides a transfer trolley for supporting and installing structural components, comprising a seat 10, a platform 30, a first lifting device 40, a second lifting device 50, and a third lifting device 60. The seat 10 primarily supports the entire device and facilitates movement. Wheels are mounted on the seat 10. The wheels are preferably swivel casters 20 with brakes, allowing for easy changes in the direction of travel and convenient rotation of the entire device. The platform 30 is located on the upper side of the seat 10 and is primarily used to carry items, such as structural components to be installed. The platform 30 can also be referred to as a lifting platform. The first lifting device 40 is located at the center of the front end of the seat 10, between the seat 10 and the platform 30. The lower end of the first lifting device 40 is rotatably mounted on the seat 10 about a horizontal axis, and the upper end of the first lifting device 40 is rotatably mounted on the platform 30 about a vertical axis. The second lifting device 50 is located on one side of the rear end of the seat 10, between the seat 10 and the platform 30. The lower end of the second lifting device 50 is mounted to the seat 10 via a first universal joint structure, and the upper end of the second lifting device 50 is mounted to the platform 30 via a second universal joint structure 51. The third lifting device 60 is located on the other side of the rear end of the seat 10, between the seat 10 and the platform 30. The lower end of the third lifting device 60 is mounted to the seat 10 via a third universal joint structure, and the upper end of the third lifting device 60 is mounted to the platform 30 via a fourth universal joint structure 61.

[0044] In this embodiment of the invention, the transfer trolley for installing structural components allows workers to place the structural components on the platform 30 using a hoist during loading. The components can be secured to prevent swaying, and the trolley seat 10 is pulled using straps during transport. After the transfer trolley is in place, it can move horizontally or rotate in place using casters. Then, the first lifting device 40, the second lifting device 50, and the third lifting device 60 can be raised or lowered simultaneously, or one or two of them can be raised or lowered, to adjust the height or angle of the platform 30, ensuring the structural component interfaces are aligned and installed.

[0045] In the transfer trolley for structural component support installation of the present invention, due to the presence of wheels, three lifting devices, and a special connection method between the three lifting devices and the seat 10 and the platform 30, the platform 30 has a large range of movement in all five degrees of freedom. This facilitates the five-degree-of-freedom adjustment of the structural components on the platform 30, enabling adjustments to the height and angle of the structural components, thus facilitating their installation and disassembly. Furthermore, because of the platform 30, installation can be performed from bottom to top, solving the problem of installing and disassembling structural components that cannot be hoisted, achieving the effect of facilitating structural component installation and disassembly, and improving installation and disassembly efficiency.

[0046] In some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, both the first and third universal joint structures include a first connecting seat 71, a first rotating shaft 72, and a second rotating shaft 73. The first connecting seat 71 is fixedly mounted to the seat 10. The first rotating shaft 72 is rotatably mounted to the first connecting seat 71. The second rotating shaft 73 is rotatably mounted to the first rotating shaft 72, and the axis of the second rotating shaft 73 is in the same plane as the axis of the first rotating shaft 72. A lifting device is fixedly or rotatably mounted to the second rotating shaft 73. In some alternative embodiments of the invention, the second rotating shaft 73 is fixedly mounted to the first rotating shaft 72, and the axis of the second rotating shaft 73 is in the same plane as the axis of the first rotating shaft 72. The lifting device is rotatably mounted to the second rotating shaft 73. In some embodiments of the invention, both the first and third universal joint structures are Hooke joints, such as a cross-axis Hooke joint.

[0047] In some embodiments of the present invention, such as Figure 5As shown, the first rotating shaft 72 includes a first pin 721 and a second pin 722 that are coaxially arranged and fixedly connected. Both the first and third universal joint structures also include a connecting block 74 and a stepped screw 75. The connecting block 74 is provided with a first through hole, a second through hole, and a stepped screw hole. The first through hole, the second through hole, and the stepped screw hole are arranged orthogonally in pairs. The second rotating shaft 73, the first pin 721, and the second pin 722 are connected within the connecting block 74 using a wedge-shaped structure and are fastened to the connecting block 74 by the stepped screw 75. Specifically, the second rotating shaft 73 is a cylindrical structure with two symmetrical grooves cut in the middle: an upper groove and a lower groove; the first pin 721 is located on the partition plate between the upper and lower grooves. Furthermore, the first pin 721 has a cylindrical structure at one end and a flat first rectangular cantilever at the other end, with a second pin 722 hole provided on the first rectangular cantilever; the second pin 722 has a cylindrical structure at one end and a flat second rectangular cantilever at the other end, with a third pin hole provided on the second rectangular cantilever. During assembly, the first rectangular cantilever is nested in the upper groove of the second rotating shaft 73, and the second rectangular cantilever is nested in the lower groove of the second rotating shaft 73, with the first pin 721 hole, the second pin 722 hole, the third pin hole, and the stepped screw hole coaxial. The stepped screw 75 is threaded into the stepped screw hole and passes through the first pin 721 hole, the second pin 722 hole, and the third pin hole. The connecting block 74 is an equilateral square prism structure, and the equilateral square prism structure is cut with rounded chamfers to increase the range of motion and prevent structural interference. The force between the seat 10 and the platform 30 is mainly transmitted through the connecting block 74, which enhances the overall structural rigidity of the first universal joint structure and the third universal joint structure. Forces acting on the corresponding second lifting device 50 or third lifting device 60 are transmitted to the first connecting seat 71 through the connecting block 74; forces acting on the first connecting seat 71 are transmitted to the corresponding second lifting device 50 or third lifting device 60 through the connecting block 74. This short force transmission path and high structural rigidity make it suitable for applications requiring the bearing of large transmitted torques or lateral forces.

[0048] In some embodiments of the present invention, the axis of the first rotating shaft 72 is arranged parallel to the horizontal axis, which extends in the front-to-back direction. This arrangement makes the adjustment of the stage angle 30 more accurate and the docking more convenient.

[0049] In some embodiments of the present invention, the second universal joint structure 51 and the fourth universal joint structure 61 are both ball joints.

[0050] In some embodiments of the present invention, such as Figures 2 to 4As shown, the first lifting device 40, the second lifting device 50, and the third lifting device 60 all include a second connecting seat 81 and a lifting screw 82. The second connecting seat 81 has a lifting cylinder with threads inside. The lifting screw 82 extends into the lifting cylinder and is threadedly connected to it. The lifting screw 82 can extend and rise or retract and descend relative to the lifting cylinder by rotating relative to it.

[0051] In some embodiments of the present invention, the transfer trolley for mounting structural components further includes a first top plate 43, a second top plate 53, and a third top plate 63. The first top plate 43 is fixedly connected to the lower side of the platform 30. A rotating cylinder is provided on the lower side of the first top plate 43. The upper end of the lifting screw 82 of the first lifting device 40 is inserted into the rotating cylinder 41 and rotatably connected to it, so that the upper end of the first lifting device 40 is rotatably mounted on the platform 30 around a vertical axis. The second top plate 53 is fixedly connected to the lower side of the platform 30. The upper end of the lifting screw 82 of the second lifting device 50 is provided with a ball joint groove, and a corresponding ball joint is fixedly connected to the lower side of the second top plate 53, the ball joint being installed in the ball joint groove. The third top plate 63 is fixedly connected to the lower side of the platform 30. The upper end of the lifting screw 82 of the third lifting device 60 is provided with a ball joint groove, and a corresponding ball joint is fixedly connected to the lower side of the third top plate 63, the ball joint being installed in the ball joint groove. When the first lifting device 40 is lifting, since the rotating drum and the lifting screw 82 are rotatably connected, the rotating drum does not hinder the rotation of the lifting screw 82. At the same time, the rotation also rotates relative to the seat 10, realizing the adjustment action of the platform 30, such as the left and right swing of the rear end of the platform 30. Similarly, the design of the ball joint groove and the ball joint does not hinder the rotation of the lifting screw 82, and also realizes its own function.

[0052] In other words, in the transfer trolley for structural component support installation in this embodiment of the invention, the lifting device includes a lifting screw 82, a ball joint, and a rotating cylinder. This allows the lifting screw 82 to extend or retract without considering the impact of the platform 30 on its rotation; that is, there is no need to provide a dedicated connecting device between the lifting screw 82 and the platform 30 to allow the lifting screw 82 to rotate. In other words, the ball joint and rotating cylinder do not affect the rotation of the lifting screw 82, while also facilitating the disassembly and installation of the structural components. This dual-purpose design fully utilizes the structural features, simplifies the structure, and makes it simple and compact.

[0053] In some alternative embodiments of the present invention, a corresponding ball joint is fixedly connected to the upper end of the lifting screw 82 of the second lifting device 50, and a ball joint groove is provided on the lower side of the second top plate 53, in which the ball joint is installed. Similarly, a corresponding ball joint is fixedly connected to the upper end of the lifting screw 82 of the third lifting device 60, and a ball joint groove is provided on the lower side of the third top plate 63, in which the ball joint is installed.

[0054] In some embodiments of the present invention, a rotating arm 83 is provided on the lifting screw 82, and the rotating arm 83 is horizontally arranged. The rotating arm 83 may also be referred to as a handle, for manual rotation to achieve lifting. In some alternative embodiments of the present invention, a motor and a transmission mechanism are installed on the second connecting seat 81, and the motor drives the lifting screw 82 to rotate through the transmission mechanism.

[0055] In some embodiments of the present invention, such as Figure 6 As shown, the omnidirectional wheel assembly 20 includes a wheel frame 21, a wheel 22, a first brake pad 23, a second brake pad 24, and a spring 25. The wheel frame 21 is rotatably mounted on the seat 10 about a vertical axis. The wheel 22 is rotatably mounted on the wheel frame 21 about a horizontal axis. The first brake pad 23 is located on the front side of the wheel and is rotatably mounted on the wheel frame 21 via a first connecting bracket 26. The second brake pad 24 is located on the rear side of the wheel and is rotatably mounted on the wheel frame 21 via a second connecting bracket 27. The spring 25 is located between the first connecting bracket 26 and the second connecting bracket 27. When both the first brake pad 23 and the second brake pad 24 are in contact with the wheel 22, the spring 25 is in a stretched state, causing the brake pads to press against the wheel 22 for braking. When the first brake pad 23 and the second brake pad 24 rotate upward and disengage from the wheel 22, the spring 25 is in a stretched state, keeping the first brake pad 23 and the second brake pad 24 in their current positions to prevent them from contacting the wheel 22 and thus to prevent them from affecting the transport of the trolley used for the installation of the structural support.

[0056] In some embodiments of the present invention, such as Figure 6As shown, the first connecting bracket 26 is rotatably mounted to the wheel frame 21 via the third pivot 28, and the second connecting bracket 27 is rotatably mounted to the wheel frame 21 via the fourth pivot 29. The third pivot 28 is located below the fourth pivot 29. Because the third pivot 28 is below the fourth pivot 29, after the first connecting bracket 26 rotates upward to a non-braking state, the spring 25 can be in a stretched state. At this time, the spring 25 passes through the position between the third pivot 28 and the fourth pivot 29, ensuring that the second brake pad 24 is always in a braking state. In use, the second brake pad 24 can be rotated downward to apply the brakes. If braking is still needed, the first brake pad 23 can be rotated downward to apply the brakes. To release the brakes, the second brake pad 24 can be rotated upward. After the second brake pad 24 rotates upward to a preset position, the spring 25 moves to the position passing through the position between the third pivot 28 and the fourth pivot 29, which will drive the first brake pad 23 to rotate upward, releasing the brakes. That is, when releasing the brakes, it is not necessary to apply the brakes to the two brake pads. To partially release the brakes, the first brake pad 23 can be rotated upwards to release its braking force, while the second brake pad 24 can maintain the braking state. This significantly improves the versatility of braking, allowing for the selection of different braking methods based on different structural components and road conditions. The structure is simple and easy to operate. Furthermore, the wheel frame 21 is also equipped with a limiting device that restricts the maximum upward rotation of the first connecting frame 26 and the second connecting frame 27.

[0057] The transfer trolley for structural component support installation according to this invention has walking and positioning capabilities, enabling short-distance transfer of structural components. It can transport structural components indoors and to workstations, allowing for angle and height adjustments. With ample allowance in all directions, the structural components can achieve five degrees of freedom of movement, accommodating bottom-up installation of various structural components. It can also assist in installation, solving the installation and disassembly problems of structural components that cannot be hoisted, thus facilitating installation and disassembly and improving efficiency. The trolley uses a universal wheel structure, with wheels that may include a soft protective layer such as nylon or rubber, or the surface on which the wheels travel may be paved with soft materials such as nylon or rubber, to prevent scratches and indentations during the movement of the transfer trolley for structural component support installation.

[0058] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A transfer trolley for installing structural component supports, characterized in that, include: A vehicle seat, on which wheels are mounted; A loading platform is disposed on the upper side of the seat; A first lifting device is disposed at the center of the front end of the seat and between the seat and the platform; the lower end of the first lifting device is rotatably mounted on the seat about a horizontal axis, and the upper end of the first lifting device is rotatably mounted on the platform about a vertical axis. The second lifting device is disposed on one side of the rear end of the seat and between the seat and the platform; the lower end of the second lifting device is mounted to the seat through a first universal hinge structure, and the upper end of the second lifting device is mounted to the platform through a second universal hinge structure. The third lifting device is located on the other side of the rear end of the seat and between the seat and the platform; the lower end of the third lifting device is mounted to the seat through a third universal joint structure, and the upper end of the third lifting device is mounted to the platform through a fourth universal joint structure. The first lifting device, the second lifting device, and the third lifting device each include: The second connecting seat has a lifting cylinder, and the lifting cylinder is provided with threads; A lifting screw, wherein the lifting screw extends into the lifting cylinder and is threadedly connected to the lifting cylinder; The wheel is a universal wheel assembly with brakes; the universal wheel assembly includes a wheel frame, a wheel, a first brake pad, a second brake pad, and a spring; the wheel frame is rotatably mounted on the seat about a vertical axis; the wheel is rotatably mounted on the wheel frame about a horizontal axis; the first brake pad is located on the front side of the wheel and is rotatably mounted on the wheel frame via a first connecting frame; the second brake pad is located on the rear side of the wheel and is rotatably mounted on the wheel frame via a second connecting frame; the spring is located between the first connecting frame and the second connecting frame.

2. The transfer trolley for installing structural support according to claim 1, characterized in that, Both the first universal joint structure and the third universal joint structure include: A first connecting seat is fixedly installed on the vehicle seat; A first rotating shaft is rotatably mounted on the first connecting seat; A second rotating shaft is rotatably mounted on the first rotating shaft, and the axis of the second rotating shaft is in the same plane as the axis of the first rotating shaft; a corresponding second lifting device or the third lifting device is fixedly or rotatably mounted on the second rotating shaft; or, the second rotating shaft is fixedly mounted on the first rotating shaft, and the axis of the second rotating shaft is in the same plane as the axis of the first rotating shaft; a corresponding second lifting device or the third lifting device is rotatably mounted on the second rotating shaft. The axis of the first rotating shaft is parallel to the horizontal axis, which extends in the front-back direction.

3. The transfer trolley for installing structural support according to claim 2, characterized in that, Both the second universal joint structure and the fourth universal joint structure are ball joints.

4. The transfer trolley for installing structural support according to claim 3, characterized in that, Also includes: A first top plate is fixedly connected to the lower side of the platform; a rotating cylinder is provided on the lower side of the first top plate; the upper end of the lifting screw of the first lifting device is inserted into the rotating cylinder and rotatably connected to the rotating cylinder, so that the upper end of the first lifting device is rotatably mounted on the platform around a vertical axis. The second top plate is fixedly connected to the lower side of the platform; the upper end of the lifting screw of the second lifting device is provided with a ball joint groove, and the corresponding ball joint is fixedly connected to the lower side of the second top plate, and the ball joint is installed in the ball joint groove. The third top plate is fixedly connected to the lower side of the platform; the upper end of the lifting screw of the third lifting device is provided with a ball joint groove, and the corresponding ball joint is fixedly connected to the lower side of the third top plate, and the ball joint is installed in the ball joint groove.

5. The transfer trolley for installing structural component supports according to claim 3, characterized in that, Also includes: A first top plate is fixedly connected to the lower side of the platform; a rotating cylinder is provided on the lower side of the first top plate; the upper end of the lifting screw of the first lifting device is inserted into the rotating cylinder and rotatably connected to the rotating cylinder, so that the upper end of the first lifting device is rotatably mounted on the platform around a vertical axis. The second top plate is fixedly connected to the lower side of the platform; the corresponding ball joint is fixedly connected to the upper end of the lifting screw of the second lifting device, and a ball joint groove is provided on the lower side of the second top plate, and the ball joint is installed in the ball joint groove. The third top plate is fixedly connected to the lower side of the platform; the corresponding ball joint is fixedly connected to the upper end of the lifting screw of the third lifting device, and a ball joint groove is provided on the lower side of the third top plate, and the ball joint is installed in the ball joint groove.

6. The transfer trolley for installing structural component supports according to claim 3, characterized in that, The lifting screw is equipped with a rotating arm, which is horizontally positioned.

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