Telescopic table apparatus with locking assembly

Abstract

A telescopic table apparatus with a locking assembly, comprising: a telescopic table body; the step tables are arranged at the tops of all layers of the telescopic table main body; the to-be-mounted seat or device is detachably mounted on the step table; the locking assembly comprises a fixing piece, a pressing and holding piece, a pressing rod and an adjusting head, and the fixing piece is detachably installed at the position of a supporting leg of the seat or device to be installed; the adjusting head is rotatably installed on the step table and arranged at the upper end of the pressing rod, and the pressing rod is arranged to be a threaded rod and is in threaded connection with the pressing and holding piece so as to drive the pressing and holding piece to move in the length direction of the pressing rod and get close to or away from the fixing piece. When the seat is assembled and disassembled, the adjusting head is rotated to drive the pressing piece to move in the axial direction of the screw rod, so that the pressing piece is tightly attached to or separated from the fixing block, and locking or unlocking of the supporting leg is achieved; a mechanical locking structure is matched with an adaptive adjusting mode, so that the to-be-mounted seat or device is locked more reliably, and meanwhile, the to-be-mounted seat or device is convenient to disassemble, assemble, overhaul and replace.

Description

Technical Field

[0001] This application relates to the field of large event grandstand structure technology, specifically to a telescopic platform device with a locking component. Background Technology

[0002] Large retractable platforms are commonly used for sporting events, concerts, and other public gatherings. These stands need to be stable and safe, and adaptable to different venues and event requirements. Retractable platforms are widely used in large event venues, requiring the ability to be quickly deployed, adjusted, and retracted. They can be adjusted in length, height, or size according to actual needs to adapt to different venues and event requirements. They typically consist of multiple retractable sections that can extend or retract as needed. Large retractable platforms have wide applications in various fields, such as bridge construction, the entertainment industry, and sporting events.

[0003] Existing traditional telescopic platforms use a front-mounted drive trolley unit for propulsion. This not only occupies a lot of space and limits the design flexibility of the grandstand, but also has complex maintenance, high operating costs, insufficient stability on uneven ground, and is prone to deviation. The front-mounted structure also requires additional counterweights, resulting in uneven weight distribution between the front and rear of the drive unit, making the telescopic platform equipment less stable overall.

[0004] Traditional telescopic platforms typically use simple mechanical devices to fix the seats or devices to be installed on the platform, or use electrically locked devices for operation. The fixed connection method is relatively simple and cannot be adapted to different scenarios, thus reducing its portability; the electric device is expensive and cannot function properly when the power supply fails, posing a significant safety hazard and reducing the reliability of the entire system.

[0005] Traditional telescopic platforms rely on two main locking mechanisms: one is to use bolts or other fasteners to achieve a rigid connection between the seat or device to be installed and the platform. However, mechanical locking requires manual operation, and each time the telescopic platform is extended or retracted, it needs to be disassembled and reassembled, which is labor-intensive. The other is an electric locking system, but it is costly, dependent on power supply, and prone to failure in complex environments, posing a risk of failure. Utility Model Content

[0006] This application provides a telescopic platform device with a locking component, which can lock the seat or device to be installed on the telescopic platform, improve stability, and make disassembly and replacement simpler.

[0007] According to this application, one embodiment provides a telescopic platform device with a locking component, comprising:

[0008] The telescopic platform body has a telescopic state and a retracted state. In the telescopic state, the telescopic platform body is arranged in a stepped shape.

[0009] A stepped platform is installed at the top of each layer of the telescopic platform body;

[0010] The seat or device to be installed can be detachably mounted on the stepped platform; and

[0011] The locking assembly includes a fastener, a retainer, a lever, and an adjustment head, wherein the fastener is detachably mounted to the support leg of the seat or device to be installed;

[0012] The adjusting head is rotatably mounted on the stepped platform and is located at the upper end of the pressure rod to drive the pressure rod to rotate. The pressure rod is configured as a screw and is threadedly connected to the pressure holding member to drive the pressure holding member to move along the length direction of the pressure rod and move closer to or away from the fixing member.

[0013] In another embodiment, the ends of the pressing member and the fixing member that are close to each other are provided with a locking structure that fits between the concave and convex parts.

[0014] In another embodiment, the locking structure includes a protrusion at the lower end of the pressing member, and the upper end of the fixing member is configured as a recessed locking groove; or,

[0015] The locking structure includes a protrusion at the upper end of the fixing member and a recessed locking groove at the lower end of the pressing member.

[0016] In another embodiment, the protrusion is provided with a guide surface for guiding the protrusion into the locking groove.

[0017] In another embodiment, the fastener includes two opposing fastening plates and a plurality of fixing screws. The fastening plates have positioning grooves for engaging the support legs. The fixing screws are distributed on both sides of the support legs and are used to connect the two fastening plates to fix the seat or device to be installed.

[0018] In another embodiment, a guide is provided on the periphery of the pressing member, the guide being used to restrict the circumferential rotation of the pressing member and ensure that it moves only along the axial direction of the pressing rod.

[0019] In another embodiment, the protrusion has a slot for the pressure rod to extend into, the lower end of the pressure rod is provided with a locking block, and the slot is narrowed to prevent the pressure rod from disengaging from the protrusion.

[0020] In another embodiment, the stepped platform includes a support plate and an upright plate. The support plate serves as the horizontal panel of the stepped platform, and the upright plate is disposed at the front end of the support plate, forming a stepped structure perpendicular to the support plate, and is used to enclose each layer of the stepped platform.

[0021] In another embodiment, the upright plate has a slot for inserting the fastener, and the slot is correspondingly located below the holding member for quickly positioning the seat or device to be installed.

[0022] In another embodiment, the adjustment head is provided with an adjustment groove, and the stepped platform is provided with a slot on the same plane as the adjustment groove. The slot is for an external tool to be inserted, and the adjustment groove is for engaging and adjusting with the external tool.

[0023] According to the above embodiment, the telescopic platform equipment with locking components has modular and detachable fasteners that are installed on the seat or device to be installed. When loading or unloading the seat, rotating the adjusting head causes the holding member to move along the screw axis, making the holding member tightly engage or disengage from the fixing block, thereby locking or unlocking the support leg. The batch and purely mechanical locking components provide greater stability, and the adjusting head can be adjusted electrically or manually, adapting to various complex environments and further improving the safety, stability, and ease of use of the equipment. At the same time, the fasteners can be adapted to replace different devices, such as barriers or tables, allowing different devices to be installed on the telescopic platform, enabling the telescopic platform to install more types of devices, increasing flexibility, and facilitating replacement and maintenance. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of a telescopic platform device with locking components;

[0025] Figure 2 This is a partial structural diagram of the telescopic platform body in one embodiment;

[0026] Figure 3 This is a cross-sectional view of the locking component in the locked state in another embodiment;

[0027] Figure 4 for Figure 3 Enlarged view of section A;

[0028] Figure 5 An exploded view of the locking component in another embodiment;

[0029] Figure 6 This is a partial structural diagram of the locking component in another embodiment.

[0030] Attachment marker:

[0031] 1. Telescopic platform main body; 11. Support frame; 12. Drive device;

[0032] 2. Stepped platform; 21. Support plate; 211. Slot; 22. Vertical plate; 221. Slot; 23. Square tube;

[0033] 3. Seats or devices to be installed;

[0034] 4. Lock components;

[0035] 41. Fastener; 411. Fastening plate; 412. Positioning groove;

[0036] 42. Adjusting head; 421. Adjusting groove;

[0037] 43. Pressure bar; 44. Holding element; 441. Horizontal plate; 442. Side plate;

[0038] 45. Protrusion; 451. Guide surface; 452. Slot;

[0039] 46. ​​Locking groove; 47. Guide steel pipe;

[0040] 48. Block; 49. Anti-slip mat. Detailed Implementation

[0041] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0042] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0043] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0044] Existing traditional telescopic platforms use a front-mounted drive trolley unit for propulsion. This not only occupies a lot of space and limits the design flexibility of the grandstand, but also has complex maintenance, high operating costs, insufficient stability on uneven ground, and is prone to deviation. The front-mounted structure also requires additional counterweights, resulting in uneven weight distribution between the front and rear of the drive unit, making the telescopic platform equipment less stable overall.

[0045] Traditional telescopic platforms typically use simple mechanical devices to rigidly connect the seat or device 3 to the platform or employ electrically locked devices. The rigid connection method is relatively limited and cannot accommodate different scenarios, reducing portability. Electrically locked devices are expensive and pose significant safety hazards in case of power failure, lowering the overall system reliability. Traditional telescopic platforms rely on two main locking mechanisms: one is a rigid connection between the seat or device 3 and the platform using bolts or other fasteners 41, but this mechanical locking requires manual operation, necessitating disassembly and reassembly for each deployment and retraction, resulting in significant workload; the other is an electrically locked system, but this is expensive, dependent on power supply, and prone to failure in complex environments, posing a risk of malfunction.

[0046] This application provides a telescopic platform device with a locking component, which can lock the seat or device 3 to be installed on the telescopic platform, improve stability, and make disassembly and replacement simpler.

[0047] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A telescopic platform device with a locking assembly includes: a telescopic platform body 1, having a telescopic state and a retracted state, wherein the telescopic platform body 1 is arranged in a stepped shape in the telescopic state; a stepped platform 2, disposed on the top of each layer of the telescopic platform body 1; a seat or device 3 to be installed, detachably installed on the stepped platform 2; and a locking assembly 4, including a fixing member 41, a holding member 44, a pressure rod 43, and an adjusting head 42, wherein the fixing member 41 is detachably installed on the support leg of the seat or device 3 to be installed; the adjusting head 42 is rotatably installed on the stepped platform 2, and the adjusting head 42 is disposed on the upper end of the pressure rod 43 for driving the pressure rod 43 to rotate, the pressure rod 43 is configured as a screw and threadedly connected to the holding member 44 to drive the holding member 44 to move along the length direction of the pressure rod 43 and move closer to or away from the fixing member 41, wherein the ends of the holding member 44 and the fixing member 41 that are close to each other are provided with a locking structure with a convex-concave fit.

[0048] In this application, when installing or removing the seat, rotating the adjusting head 42 causes the holding member 44 to move along the screw axis, so that the holding member 44 is tightly engaged with or disengaged from the fixing block, thereby locking or unlocking the support leg; through a batch and purely mechanical locking structure, the fixing of the seat or device 3 to be installed is more reliable.

[0049] In this embodiment, please refer to Figure 1 and Figure 2 The telescopic platform body 1 is composed of multiple layers of telescopic support frames 11. The drive device 12 drives each layer of frames to unfold and retract. Its specific structure can be referred to the existing telescopic platform device, which will not be described in detail here. When unfolded, the telescopic platform body 1 is arranged in a stepped manner, and each layer has a corresponding stepped platform 2 at the top.

[0050] Please refer to Figure 2 and Figure 3 The stepped platform 2 includes a horizontally arranged support plate 21 and a vertical plate 22 fixed to the front end of the support plate 21, forming a closed stepped structure to prevent debris from entering the internal frame of the telescopic platform body 1 from below the support plate 21. The support plate 21 serves as the horizontal panel of the stepped platform 2, supporting various devices such as tables, chairs, railings, partitions, etc., i.e., various devices to be installed. The chairs or devices 3 to be installed all have support legs, which are detachably installed on the stepped platform 2 through the cooperation of the fixing member 41 and the pressing member 44.

[0051] Please refer to Figure 1 In this embodiment, the frame of the telescopic platform body 1 is made of hollow steel. The support plate 21 and the upright plate 22 are connected by a square tube 23 by welding. The adjusting head 42 is rotatably installed inside the square tube 23. The pressure rod 43 is vertically set and passes through the square tube 23. Specifically, the pressure rod 43 and the square tube 23 can be rotatably connected by bearings to ensure the stability of the connection between the pressure rod 43 and the square tube 23.

[0052] Please refer to Figure 1 and Figure 3 The upright plate 22 has a slot 221 for inserting the fixing member 41. The slot 221 is correspondingly located below the holding member 44. The fixing member 41 cooperates with the slot 221 to quickly position the seat or device 3 to be installed, which facilitates the precise cooperation between the holding member 44 and the fixing member 41.

[0053] For further details, please refer to... Figure 4 and Figure 5The locking component 4 is a purely mechanical structure, and its adjustment method can be specifically set according to the site conditions. In this application, the adjustment head 42 can be adjusted by electrical control, for example, by setting a motor drive, which can drive the whole or drive a single one, and remotely control the same fixed seat and device to be installed. Even if the motor is damaged or the electrical control is unavailable, the adjustment head 42 can be rotated manually. Specifically, the adjustment head 42 is provided with an adjustment groove 421, which is specifically a hexagonal groove. The support plate 21 has a slot 211, which is set on the same plane as the adjustment groove 421. Specifically, it can be set at the upper end of the adjustment groove 421 and the upper end of the adjustment head 42. The slot 211 can be used for external tools to be inserted, and the adjustment groove 421 can be engaged with external tools. The adjustment head 42 can be rotated manually, thereby adapting to various complex environments and further improving the safety, stability and ease of use of the equipment.

[0054] Please refer to Figure 4 , Figure 5 and Figure 6 The locking structure includes a protrusion 45 at the lower end of the holding member 44 and a recessed locking groove 46 at the upper end of the fixing member 41; or, the locking structure includes a protrusion 45 at the upper end of the fixing member 41 and a recessed locking groove 46 at the lower end of the holding member 44. In this embodiment, the protrusion 45 is located at the lower end of the holding member 44, and the locking groove 46 is located at the upper end of the fixing member 41. When the holding member 44 moves downward, the protrusion 45 is embedded in the locking groove 46, achieving rigid locking.

[0055] Please refer to Figure 5 and Figure 6 The protrusion 45 is provided with a guide surface 451, which is used to guide the protrusion 45 into the locking groove 46. Specifically, in this embodiment, the protrusion 45 is configured as a trapezoidal structure, the guide surface 451 is configured as the two inclined surfaces of the protrusion 45, and the locking groove 46 is correspondingly configured as a trapezoidal structure so as to facilitate the tight fit between the protrusion 45 and the locking groove 46.

[0056] In other embodiments, the mating surfaces of the protrusion 45 and the locking groove 46 may also be provided with mutually matching concave and convex textures to increase the tightness and stability of the fit between the two and reduce misalignment, shaking and displacement.

[0057] Please refer to Figure 4 The pressure member 44 is provided with a guide on its periphery. The guide is used to restrict the circumferential rotation of the pressure member 44 and ensure that it moves only along the axial direction of the pressure rod 43. In this embodiment, the guide includes a plurality of guide steel pipes 47 arranged below the support plate 21. The guide steel pipes 47 are arranged laterally and form a guide space with the vertical plate 22 for the pressure member 44 to move in the vertical direction, so as to ensure the accurate positioning of the protrusion 45 below the pressure member 44.

[0058] Please refer to Figure 5 and Figure 6 The holding member 44 includes a horizontal plate 441 and side plates 442 disposed at both ends of the horizontal plate 441. The through groove formed by the horizontal plate 441 and the side plates 442 is parallel to the length direction of the slot 221. The protrusion 45 is fixed between the two side plates 442 and is fixed to the holding member 44. The upper end of the protrusion 45 is provided with a slot 452 for the pressure rod 43 to extend into. The lower end of the pressure rod 43 is provided with a locking block 48. The slot 452 is narrowed to prevent the pressure rod 43 from disengaging from the protrusion 45. Specifically, the narrowed opening of the slot 452 can be set as a narrowed hole with a diameter larger than the diameter of the pressure rod 43 and smaller than the diameter of the locking block 48. Alternatively, the slot 452 and the pressure rod 43 can be connected by a bearing, thereby preventing the pressure rod 43 from disengaging from the protrusion 45 while keeping the rotation of the pressure rod 43 unrestricted.

[0059] For further details, please refer to... Figure 5 and Figure 6 In this embodiment, the locking groove 46 is a through groove at both ends of the upper end of the fixing member 41; the protrusion 45 is a "relative" protrusion structure formed by the concave sides of the two opposite sides of the overall square block. Specifically, the concave shape of the side of the square block is trapezoidal, and the inner wall of the concave structure is the guide surface 451 of the protrusion 45. When the protrusion 45 is embedded in the locking groove 46 and locked, the fixing member 41 is simultaneously embedded in the concave structure of the side of the square block, thereby further enhancing the tightness of the fit between the locking groove 46 and the protrusion 45 and the locking reliability.

[0060] Please refer to Figure 1 The fastener 41 includes two fastening plates 411 arranged opposite each other and a plurality of fixing screws. The fastening plates 411 have positioning grooves 412 for engaging the support legs. The fixing screws are distributed on both sides of the support legs and are used in conjunction with fixing nuts to connect the two fastening plates 411, thereby fixing the seat or device 3 to be installed.

[0061] In this embodiment, each seat or device 3 to be installed is provided with at least two sets of locking components 4. Please refer to [reference needed]. Figure 1 and Figure 5 The seat's support legs have a corner structure, with fixing screws distributed on the inner and outer sides of the corners to secure the seat. In this embodiment, the fixing component 41 is modular and detachably installed on the seat or device 3 to be installed. The fixing component 41 can be adapted to different devices, such as barriers or tables. Positioning grooves 412 are provided for different support legs, allowing different devices to be installed on the telescopic platform. This makes the telescopic platform able to install more types of devices, increasing flexibility and facilitating replacement and maintenance.

[0062] Please refer to Figure 1 The horizontal support legs are equipped with anti-slip pads 49 to increase friction with the step platform 2 and improve the stability of the seat or device 3 to be installed.

[0063] In this embodiment, each locking component 4 can be designed as a modular, detachable structure, which facilitates individual repair or replacement.

[0064] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A retractable stage apparatus with a locking assembly, characterized by, include: The telescopic platform body (1) has a telescopic state and a retracted state. In the telescopic state, the telescopic platform body (1) is arranged in a stepped shape. A stepped platform (2) is set on the top of each layer of the telescopic platform body (1); The seat or device (3) to be installed can be detachably installed on the stepped platform (2); as well as The locking assembly (4) includes a fixing member (41), a pressing member (44), a pressing rod (43) and an adjusting head (42), wherein the fixing member (41) is detachably installed on the support leg of the seat or device (3) to be installed; The adjusting head (42) is rotatably mounted on the stepped platform (2), and the adjusting head (42) is located at the upper end of the pressure rod (43) to drive the pressure rod (43) to rotate. The pressure rod (43) is configured as a screw and threadedly connected to the pressure holding member (44) to drive the pressure holding member (44) to move along the length direction of the pressure rod (43) and move closer to or away from the fixing member (41).

2. The telescopic platform device with locking assembly as described in claim 1, characterized in that, The pressing member (44) and the fixing member (41) are provided with a locking structure with a convex-concave fit at their respective ends.

3. The telescopic platform device with locking assembly as described in claim 2, characterized in that, The locking structure includes a protrusion (45) at the lower end of the pressing member (44), and the upper end of the fixing member (41) is provided with a recessed locking groove (46); or, The locking structure includes a protrusion (45) on the upper end of the fixing member (41) and a recessed locking groove (46) at the lower end of the pressing member (44).

4. The telescopic platform device with locking component as described in claim 3, characterized in that, The protrusion (45) is provided with a guide surface (451), which is used to guide the protrusion (45) into the locking groove (46).

5. The telescopic platform device with locking assembly as described in claim 1, characterized in that, The fastener (41) includes two fastening plates (411) arranged opposite to each other and a plurality of fixing screws. The fastening plate (411) has a positioning groove (412) for engaging the support leg. The fixing screws are distributed on both sides of the support leg and are used to connect the two fastening plates (411) to fix the seat or device (3) to be installed.

6. The telescopic platform device with locking assembly as described in claim 5, characterized in that, The pressure member (44) is provided with a guide on its periphery. The guide is used to restrict the circumferential rotation of the pressure member (44) and ensure that it moves only along the axial direction of the pressure rod (43).

7. The telescopic platform device with locking assembly as described in claim 3, characterized in that, The protrusion (45) has a slot (452) for the pressure rod (43) to extend into. The lower end of the pressure rod (43) is provided with a locking block (48). The slot (452) is narrowed to restrict the pressure rod (43) from disengaging from the protrusion (45).

8. The telescopic platform device with locking component as described in claim 1, characterized in that, The stepped platform (2) includes a support plate (21) and an upright plate (22). The support plate (21) serves as the horizontal panel of the stepped platform (2). The upright plate (22) is located at the front end of the support plate (21) and forms a vertical stepped structure with the support plate (21), and is used to enclose each layer of the stepped platform (2).

9. The telescopic platform device with locking assembly as described in claim 8, characterized in that, The upright plate (22) has a slot (221) for inserting the fixing member (41). The slot (221) is located below the pressing member (44) for quickly positioning the seat or device (3) to be installed.

10. The telescopic platform device with locking assembly as described in claim 2, characterized in that, The adjustment head (42) is provided with an adjustment groove (421), and the step platform (2) is provided with a slot (211) on the same plane as the adjustment groove (421). The slot (211) is used for external tools to be inserted, and the adjustment groove (421) is used to engage and adjust with external tools.

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