Hydraulic lifting type multifunctional stand with multiple safety protection functions

Abstract

The invention mainly relates to the field of grandstands, in particular to a hydraulic lifting type multifunctional grandstand with multiple safety protection. The device comprises a bottom frame, an outer shear fork supporting rod, an inner shear fork supporting rod and a bearing plate. Pulleys are arranged at the bottoms of the outer shear fork supporting rods in pairs and arranged on the bottom frame in a sliding mode. A hydraulic driving device is arranged between the inner shear fork supporting rod and the outer shear fork supporting rod; the stand further comprises a screw driving device, the screw driving device comprises a connecting rod, a threaded rod and a driving motor, and the connecting rod is arranged at the bottom of the outer shear fork supporting rod. A threaded hole is transversely formed in the connecting rod, a threaded rod is in threaded connection with the interior of the threaded hole, and the threaded rod is connected to the driving motor. By adopting a dual-driving mode of the hydraulic driving device and the screw driving device, stable lifting of the grandstand is realized, and when a hydraulic system fails, the screw driving device can be used as a standby system to ensure that the grandstand can be safely fixed at a certain position, so that the safety and the reliability of the grandstand are greatly improved.

Description

Technical Field

[0001] The present invention mainly relates to the field of grandstands, and specifically relates to a hydraulically lifted multi-functional grandstand with multiple safety protections. Background Art

[0002] In the existing grandstand designs, most adopt fixed structures or simple lifting mechanisms. These designs often have problems such as single function, insufficient safety, and poor adaptability. Especially in occasions where the height or position needs to be frequently adjusted, and multifunctionality is required, such as stadiums, performance venues, temporary viewing platforms, etc., the traditional grandstand designs are difficult to meet the requirements. In addition, the existing lifted grandstands also have certain limitations in terms of stability, safety, and operation convenience, such as the leakage risk of the hydraulic system, the wear problem of the mechanical structure, and the lack of effective multiple safety protection measures. Summary of the Invention

[0003] To solve the above problems, the present invention adopts the following technical solutions.

[0004] The present invention provides a hydraulically lifted multi-functional grandstand with multiple safety protections, including a chassis, outer scissor struts, inner scissor struts, and a bearing plate; pulleys are arranged in pairs at the bottom of the outer scissor struts, and the pulleys are slidably arranged on the chassis; a hydraulic driving device is arranged between the inner scissor struts and the outer scissor struts; the grandstand also includes a screw driving device, which includes a connecting rod, a threaded rod, and a driving motor. The connecting rod is arranged at the bottom of the outer scissor strut; a threaded hole is transversely opened on the connecting rod, and the threaded rod is threadedly connected in the threaded hole, and the threaded rod is connected to the driving motor.

[0005] Further, the driving motor and one end of the threaded rod are connected together through a coupling, and the other end of the threaded rod and the coupling are both installed on the chassis through mounting plates.

[0006] Further, the grandstand also includes a lateral moving device, which includes a moving motor, and track wheels and tracks arranged on the front and rear sides of the chassis; the moving motor is installed on the chassis, the output end of the moving motor is connected with a chain transmission device, and the output end of the chain transmission device is connected with a transmission shaft, and both ends of the transmission shaft are connected with the track wheels.

[0007] Further, a bellows is arranged between the chassis and the bearing plate.

[0008] Further, a seat device is arranged in the bearing plate. The seat device includes a folding chair, the folding chair is installed on a support plate, and a two-dimensional moving device is arranged at the bottom of the support plate; a square hole corresponding to the support plate is opened on the upper surface of the bearing plate.

[0009] Furthermore, a plurality of the two-dimensional moving devices are also arranged inside the bearing plate, and a support plate is arranged on the two-dimensional moving device.

[0010] Furthermore, the two-dimensional moving device includes a two-layer bracket. A horizontal moving device is arranged on the upper layer of the two-layer bracket, and a plurality of vertical cylinders are arranged on the first layer of the two-layer bracket. The support plate is fixed on the horizontal moving device.

[0011] Furthermore, fences are arranged around the top of the bearing plate.

[0012] The beneficial effects of the present invention are as follows: By adopting a dual driving mode of a hydraulic driving device and a screw driving device, the present invention realizes the stable lifting of the grandstand. When the hydraulic system fails, the screw driving device can be used as a backup system to ensure that the grandstand can be safely fixed at a certain position, greatly improving the safety and reliability of the grandstand.

[0013] The hydraulic driving device provides fast and stable lifting ability, enabling the grandstand to flexibly adjust its height according to actual needs and meeting the viewing or performance needs in different occasions. At the same time, the fine adjustment ability of the screw driving device makes the grandstand more accurate in positioning and meets the requirements of high-precision positioning.

[0014] The seat device arranged inside the bearing plate can hide the seats through the two-dimensional moving device, enabling the grandstand to switch between a seating platform, a simple stage and a camera platform.

[0015] By adding a lateral moving device, the present invention realizes the horizontal movement of the grandstand, further improving the flexibility and adaptability of the grandstand. The bellows arranged between the chassis and the bearing plate can effectively shield the mechanical components during the lifting process, prevent dust and sundries from entering, extend the service life of the equipment, and improve the overall aesthetics of the grandstand at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present invention.

[0017] Figure 2 It is Figure 1 a partial structural schematic diagram at A in

[0018] Figure 3 It is a schematic structural diagram of the chassis of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the interior of the bearing plate of the present invention.

[0020] Figure 5 It is a schematic structural diagram of the two-dimensional moving device of the present invention.

[0021] Figure 6 This is a schematic diagram of the overall structure of the present invention.

[0022] Explanation of reference numerals: chassis 1, outer scissors strut 2, pulley 21, inner scissors strut 3, bearing plate 4, square hole 41, fence 42, hydraulic drive device 5, screw drive device 6, connecting rod 61, threaded hole 611, threaded rod 62, drive motor 63, coupling 64, mounting plate 65, lateral movement device 7, track wheel 71, track 72, movement motor 73, chain drive device 74, transmission shaft 75, seat device 8, folding chair 81, support plate 82, two-dimensional movement device 83, bellows 9. Detailed implementation manners

[0023] The following further elaborates on the content of the present invention in conjunction with the accompanying drawings.

[0024] As Figure 1 and 2 shown, the present invention provides a hydraulically lifted multi-functional grandstand with multiple safety protections, including a chassis 1, outer scissors struts 2, inner scissors struts 3, and a bearing plate 4; pairs of pulleys 21 are provided at the bottom of the outer scissors struts 2, and the pulleys 21 are slidably arranged on the chassis 1; a hydraulic drive device 5 is arranged between the inner scissors struts 3 and the outer scissors struts 2; the grandstand further includes a screw drive device 6, and the screw drive device 6 includes a connecting rod 61, a threaded rod 62, and a drive motor 63, and the connecting rod 61 is arranged at the bottom of the outer scissors struts 2; a threaded hole 611 is transversely opened on the connecting rod 61, and the threaded rod 62 is threadedly connected in the threaded hole 611, and the threaded rod 62 is connected to the drive motor 63. The hydraulic drive device 5 and the screw drive device 6 act simultaneously, enabling the relative movement of the inner scissors struts 3 and the outer scissors struts 2 to realize the rapid lifting of the grandstand. Due to the self-locking characteristic of the thread, it can increase the stability of the rapid lifting of the grandstand, and at the same time, when the hydraulic system fails, an additional layer of safety protection is added. One end of the drive motor 63 is connected to the threaded rod 62 through a coupling 64, and the other end of the threaded rod 62 and the coupling 64 are both installed on the chassis 1 through a mounting plate 65. This ensures the stability and reliability of the screw drive device 6.

[0025] As Figure 3As shown in the figure, the grandstand also includes a lateral movement device 7. The movement device 7 includes a movement motor 73, and track wheels 71 and tracks 72 arranged on the front and rear sides of the chassis 1. The movement motor 73 is installed on the chassis 1. The output end of the movement motor 73 is connected to a chain drive device 74. The output end of the chain drive device 74 is connected to a transmission shaft 75. Both ends of the transmission shaft 75 are connected to the track wheels 71. After the movement motor 73 is started, the transmission shaft 75 is driven to rotate through the chain drive device 74. Since both ends of the transmission shaft 75 are connected to the track wheels 71, the track wheels 71 will move along the tracks 72 as the transmission shaft 75 rotates, so as to realize the movement of the grandstand in the horizontal direction and be able to move around the venue. This enables the grandstand to flexibly adjust its position according to actual needs and meet the usage requirements of different occasions. For example Figure 6 As shown in the figure, a bellows cover 9 is arranged between the chassis 1 and the bearing plate 4, which can automatically expand and contract as the grandstand rises and falls. It shields the mechanical components between the chassis 1 and the bearing plate 4, prevents dust and sundries from entering the interior of these components, and extends the service life of the equipment. At the same time, the bellows cover 9 also improves the overall aesthetics of the grandstand.

[0026] For example Figure 4 As shown in the figure, a seat device 8 is arranged inside the bearing plate 4. The seat device 8 includes a folding chair 81. The folding chair 81 is installed on a support plate 82. A two-dimensional movement device 83 is arranged at the bottom of the support plate 82. Square holes 41 corresponding to the support plate 82 are opened on the upper surface of the bearing plate 4. When seats are needed, the two-dimensional movement device 83 drives the support plate 82 carrying the folding chair 81 to move out along the square holes 41, and the folding chair 81 is unfolded for people to use. When seats are not needed, the folding chair 81 is folded up, and the two-dimensional movement device 83 drives the support plate 82 to move back into the bearing plate 4 along the square holes 41 to realize the hiding of the seats. At the same time, another group of horizontal movement devices 831 drives the support plate 82 to move in the horizontal direction, while the vertical cylinders drive the support plate 82 to move in the vertical direction. Through the coordinated work of the two-dimensional movement device 83, the support plate 82 is moved to the position of the square holes 41, thus realizing a more diverse layout and adjustment. This improves the flexibility and adaptability of the grandstand. The grandstand can be switched between a seating platform, a simple stage and a camera platform to meet the usage requirements of various occasions.

[0027] For example Figure 4 and 5 As shown in the figure, a plurality of the two-dimensional movement devices 83 are also arranged inside the bearing plate 4, and support plates 82 are arranged on the two-dimensional movement devices 83. The two-dimensional movement device 83 includes a two-layer bracket 833. A horizontal movement device 831 is arranged on the upper layer of the two-layer bracket 833. A plurality of vertical cylinders are arranged on the first layer of the two-layer bracket 833. The support plate 82 is fixed on the horizontal movement device 831. Fences 42 are arranged around the top of the bearing plate 4.

[0028] The multi - safety - protected hydraulic lift - type multi - functional stand provided by the present invention realizes the rapid lifting of the stand through the synergistic action of the hydraulic drive device 5 and the screw drive device 6. At the same time, the self - locking characteristic of the thread is utilized to increase stability and provide safety protection; the stand can be moved horizontally through the lateral movement device 7 to flexibly adjust its position around the venue; the seat device 8 in the bearing plate 4 realizes the extension and hiding of the folding chair 81 and its movement in the horizontal and vertical directions through the two - dimensional movement device, forming a diversified layout; the bellows cover 9 shields the mechanical components, prolongs the service life and improves the aesthetics; the overall design enables the stand to switch between the seating platform, the simple stage and the camera platform, meeting the usage requirements of various occasions.

[0029] Through the above - mentioned specific implementation manners, those skilled in the technical field can easily implement the present invention. However, it should be understood that the present invention is not limited to the above - mentioned specific implementation manners. Based on the disclosed implementation manners, those skilled in the technical field can arbitrarily combine different technical features to thus implement different technical solutions.

Claims

1. A hydraulic lifting multifunctional grandstand with multiple safety protections, characterized by: The invention comprises a base frame (1), an outer scissor support rod (2), an inner scissor support rod (3) and a bearing plate (4); pulleys (21) are arranged in pairs at the bottom of the outer scissor support rod (2), and the pulleys (21) are slidably arranged on the base frame (1); a hydraulic drive device (5) is arranged between the inner scissor support rod (3) and the outer scissor support rod (2); The stand further comprises a screw drive device (6), the screw drive device (6) comprising a connecting rod (61), a threaded rod (62) and a drive motor (63), the connecting rod (61) being arranged at the bottom of the outer scissor support rod (2); a threaded hole (611) is transversely opened on the connecting rod (61), the threaded hole (611) is internally threadedly connected to the threaded rod (62), and the threaded rod (62) is connected to the drive motor (63).

2. The hydraulic lifting multifunctional grandstand with multiple safety protections according to claim 1 is characterized by: The driving motor (63) is connected to one end of the threaded rod (62) via a coupling (64), and the other end of the threaded rod (62) and the coupling (64) are both mounted on the base frame (1) via a mounting plate (65).

3. The hydraulic lifting multifunctional grandstand with multiple safety protections according to claim 1 is characterized by: The stand further comprises a transverse moving device (7), the moving device (7) comprising a moving motor (73) and track wheels (71) and tracks (72) arranged on the front and rear sides of the base frame (1); the moving motor (73) is mounted on the base frame (1); the output end of the moving motor (73) is connected to a chain transmission device (74); the output end of the chain transmission device (74) is connected to a transmission shaft (75); and both ends of the transmission shaft (75) are connected to the track wheels (71).

4. The hydraulic lifting multifunctional grandstand with multiple safety protections according to claim 1 is characterized by: An accordion cover (9) is provided between the base frame (1) and the bearing plate (4).

5. The hydraulic lifting multifunctional grandstand with multiple safety protections according to claim 1 is characterized in that: A seat device (8) is arranged inside the carrying plate (4), the seat device (8) comprising a folding chair (81), the folding chair (81) being mounted on a support plate (82), a two-dimensional moving device (83) being arranged at the bottom of the support plate (82); a square hole (41) corresponding to the support plate (82) is provided on the upper surface of the carrying plate (4).

6. The hydraulic lifting multifunctional grandstand with multiple safety protections according to claim 5 is characterized by: A plurality of the two-dimensional moving devices (83) are also arranged in the carrying plate (4), and a supporting plate (82) is arranged on the two-dimensional moving devices (83).

7. The hydraulic lifting multifunctional grandstand with multiple safety protections according to claim 6 is characterized by: The two-dimensional moving device (83) comprises a two-layer support (833), the upper layer of the two-layer support (833) is provided with a horizontal moving device (831), one layer of the two-layer support (833) is provided with a plurality of vertical cylinders, and the support plate (82) is fixed on the horizontal moving device (831).

8. The hydraulic lifting multifunctional grandstand with multiple safety protections according to claim 1 is characterized by: Fences (42) are arranged around the top of the bearing plate (4).

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