Supporting column structure with variable height
By combining a series of butterfly-shaped flexible devices and a driving device, the problems of complex and high cost of existing variable height support column structures are solved, realizing flexible adjustment of the support column height and enhancement of lateral stiffness, simplifying the structure and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-14
AI Technical Summary
Existing variable height support column structures are complex and costly, making it difficult to achieve simple and economical height adjustment and sufficient lateral stiffness to resist lateral loads and torsional stiffness.
The system employs a series of butterfly-shaped flexible devices and a drive mechanism. The height of the support column is adjusted by the elastic expansion and contraction of the flexible plate. Combined with the sliding fit of the regular hexagonal shell and the multi-section column, the structure is simplified and the lateral stiffness is enhanced.
It achieves flexible adjustment of the support column height, has a simple structure, stable control, sufficient lateral and torsional stiffness, and reduces manufacturing costs.
Smart Images
Figure CN224120997U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of flexible structure design technology, and specifically relates to a support column structure with variable height. Background Technology
[0002] Support columns are highly efficient structures and widely used in engineering practice. However, their height sometimes needs to be adjusted during use. Support columns must not only have sufficient stiffness and load-bearing capacity in the axial direction, but also sufficient lateral and torsional stiffness to resist lateral loads and deformations. Currently used variable-height support columns or variable-length outriggers typically employ hydraulic drives, which place high demands on the sealing of the sidewalls, increasing structural complexity and manufacturing costs. Therefore, how to realize variable-height support column structures is a problem that needs to be solved. Utility Model Content
[0003] The purpose of this application is to provide a variable-height support column structure to solve the problems of high complexity and cost of existing variable-height support columns.
[0004] The technical solution of this application is: a variable-height support column structure, including a shell, a series of butterfly-shaped flexible devices, and a driving device; the shell is a regular hexagon with a hollow internal structure and an open top; the series of butterfly-shaped flexible devices and the driving device are both located inside the shell; the series of butterfly-shaped flexible devices include multiple sets of vertically stacked flexible plates, each with a circular hole in its center, and the flexible plates are coaxially arranged with the shell; the driving device is coaxially arranged with the shell, with its upper end extending from the top opening of the shell and its middle part inserted into the center of the flexible plate; the shell includes multiple sections of column, which are arranged vertically, with adjacent sections nested and slidingly fitted together.
[0005] Preferably, the flexible plate includes a first sector block and a second sector block; there are multiple sets of both the first sector block and the second sector block, which are staggered to form a ring structure; the cross-section of both the first sector block and the second sector block is a V-shaped structure, and the opening faces away from the center of the ring structure; the first sector block and the second sector block are bent in opposite directions, and the first sector block and the second sector block that are close to each other on adjacent flexible plates are welded together at the welding area to form a butterfly shape that is interlocked; then the second sector block is welded together with the first sector block that is close to each other on the next adjacent flexible plate to form a series disc-shaped flexible device.
[0006] Preferably, the diameter of the central circular hole of the flexible plate is larger than the diameter of the displacement output rod of the driving device, the end of the lowermost column sidewall is fixedly connected to the foundation structure, the top of the uppermost column sidewall is fixedly connected to the series butterfly flexible device and the driving device, and a connecting joint is provided at the top.
[0007] Preferably, the diameter of the displacement output rod of the drive device is no greater than 15 mm, and the drive device adopts a hydraulic actuator or an electric push rod.
[0008] Preferably, the flexible plate is a circular aluminum plate with a thickness of 1.5 mm and a diameter of 90 mm. The diameter of the circular hole at the center of the flexible plate is 15 mm, the diameter of the middle circular plate is 40 mm, and the outer edge of the plate is divided into 12 fan-shaped areas. The spacing between adjacent flexible plates is 10 mm. The equivalent deflection of the elastic bending of the fan-shaped area of the flexible plate is no more than 10°, and the maximum elastic bending of a single flexible plate in both directions is 8 mm.
[0009] Preferably, the column consists of three sections, each with a 2 mm thick hexagonal tube wall and a 300 mm long length. The inner diameter of the uppermost hexagonal tube is 92 mm. In the initial state, the uppermost section has a height of 400 mm, the middle section has a height of 350 mm, and the lowermost section has a height of 300 mm. When the column reaches its maximum height, the uppermost section has a height of 700 mm, the middle section has a height of 500 mm, and the nesting section between the sections is 100 mm long.
[0010] The variable-height support column structure of this application allows for height adjustment by driving multiple column sections to slide up and down via a drive device. Simultaneously, a flexible plate expands or contracts under its own elastic force, thus achieving height adjustment. The structure is simple and the control is stable. Furthermore, the variable-height support column possesses sufficient lateral stiffness to resist lateral and torsional loads during height changes, and the manufacturing process is simple and easy to implement. Attached Figure Description
[0011] To more clearly illustrate the technical solutions provided in this application, the accompanying drawings will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application.
[0012] Figure 1 This is a schematic diagram of the overall structure of this application;
[0013] Figure 2 This is a front view of the tandem butterfly-shaped flexible device of this application;
[0014] Figure 3 This is a side view of the tandem butterfly-shaped flexible device of this application.
[0015] 1. Outer shell; 2. Series butterfly-shaped flexible device; 3. Drive device; 4. First sector block; 5. Second sector block; 6. Column. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] A variable-height support column structure, such as Figure 1 The device includes a shell 1, a series of butterfly-shaped flexible devices 2, and a drive device 3. The shell 1 is a regular hexagon with a hollow internal structure and an open top. The series of butterfly-shaped flexible devices 2 and the drive device 3 are both located inside the shell 1. The series of butterfly-shaped flexible devices 2 includes multiple sets of flexible plates stacked vertically. A circular hole is opened in the center of each flexible plate. The flexible plates are coaxially arranged with the shell 1. The drive device 3 is coaxially arranged with the shell 1. The upper end of the drive device 3 extends out from the top opening of the shell 1 and the middle part is inserted into the center of the flexible plate. The shell 1 includes multiple sections of column 6, which are arranged vertically. Adjacent sections of column 6 are nested and slidably fitted together.
[0018] The series of disc-shaped flexible devices 2 are used to increase the ability of the variable height support column to resist lateral loads, and the output displacement of the drive device 3 is adjusted to change the height of the column 6.
[0019] When the height of the support column needs to be adjusted, the multi-section column 6 is driven up and down by the drive device 3. At the same time, the flexible plate expands or contracts under its own elastic force, thereby realizing the height adjustment of the support column. The structure is simple and the control is stable. In addition, the variable height support column has sufficient lateral stiffness to resist lateral loads and torsional loads during the height change process, and the process is simple and easy to implement.
[0020] Preferably, such as Figures 2-3 The flexible plate includes a first sector block 4 and a second sector block 5; there are multiple sets of the first sector block 4 and the second sector block 5, which are staggered to form a ring structure; the cross-section of the first sector block 4 and the second sector block 5 is a V-shaped structure, and the opening faces away from the center of the ring structure; the first sector block 4 and the second sector block 5 are bent in opposite directions, that is, the first sector block 4 is bent in the forward direction and the second sector block 5 is bent in the reverse direction, forming a welding area on the outside. At the welding area, the first sector block 4 and the second sector block 5 of adjacent flexible plates that are close to each other are welded together to form a butterfly shape that is interlocked; then the second sector block 5 is welded to the first sector block 4 of the next adjacent flexible plate that is close to each other to form a series of disc-shaped flexible devices.
[0021] The number of flexible plates in the series-connected disc-shaped flexible device 2 depends on the initial height of the support column and the travel of the variable height. The initial bending shape of the odd and even sector regions on the flexible plates is the spacing between the flexible plates, and the sum of the spacings should be equivalent to the initial height. The travel of the variable height is the sum of the elastic deformations of all sector regions of the flexible plates. The number of flexible plates is determined according to the travel requirements of the variable height, and the initial bending shape of the flexible plates is adjusted.
[0022] The above design makes the series butterfly flexible device 2 easily deformable in the axial direction of the column 6, and has great stiffness in the lateral and torsional directions, resisting lateral loads and lateral displacements.
[0023] Preferably, the diameter of the central circular hole of the flexible plate is larger than the diameter of the displacement output rod of the drive device 3, the end of the side wall of the lowest column 6 is fixedly connected to the foundation structure, the top of the side wall of the uppermost column 6 is fixedly connected to the series butterfly flexible device 2 and the drive device 3, and a connecting joint is provided at the top.
[0024] During the height change of the support column, each column 6 sidewall and the sidewall of the nested column 6 always have a nesting length; the diameter of the flexible plate of the series disc-shaped flexible device 2 corresponding to different column 6 sidewalls can be appropriately adjusted according to the diameter of the inscribed circle of the column 6 sidewall.
[0025] Preferably, the flexible plate is a 1.5 mm thick, 90 mm diameter circular aluminum plate. The diameter of the circular hole at the center of the flexible plate is 15 mm, the diameter of the middle circular plate is 40 mm, and the outer edge of the plate is divided into 12 sector-shaped areas. The spacing between adjacent flexible plates is 10 mm. The equivalent deflection of the elastic bending of the sector-shaped area of the flexible plate is no more than 10°. The maximum elastic bending of a single flexible plate in both directions can reach 8 mm, and the variable height stroke can meet the requirement of 300 mm.
[0026] Preferably, the diameter of the displacement output rod of the drive device 3 is no more than 15 mm. The drive device 3 adopts a hydraulic actuator or an electric push rod, which passes through the round hole of the series butterfly flexible device 2. The drive device 3 is connected to the series butterfly flexible device 2 and the side wall of the column 6 at the top.
[0027] Preferably, the column 6 consists of three sections, each with a 2 mm thick, 300 mm long, hexagonal tube wall. The inner diameter of the uppermost hexagonal tube section is 92 mm. Initially, the uppermost section has a height of 400 mm, the middle section has a height of 350 mm, and the lowermost section has a height of 300 mm. When the height is increased to its maximum, the uppermost section has a height of 700 mm, the middle section has a height of 500 mm, and the nesting section between the sections is 100 mm long. The bottom end of the side wall of the lowermost column 6 is fixedly connected to the lowermost series-connected butterfly-shaped flexible device.
[0028] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A variable-height support column structure, characterized in that: The device includes a shell (1), a series of butterfly-shaped flexible devices (2), and a driving device (3). The shell (1) is a regular hexagon with a hollow structure inside and an open top. The series of butterfly-shaped flexible devices (2) and the driving device (3) are both located inside the shell (1). The series of butterfly-shaped flexible devices (2) includes multiple sets of flexible plates stacked vertically. A circular hole is opened in the center of each flexible plate. The flexible plate is coaxially arranged with the shell (1). The driving device (3) is coaxially arranged with the shell (1). The upper end of the driving device (3) extends out from the top opening of the shell (1) and is inserted into the center of the flexible plate. The shell (1) includes multiple sections of column (6). The multiple sections of column (6) are arranged vertically, and adjacent sections of column (6) are nested and slidably fitted together.
2. The variable-height support column structure as described in claim 1, characterized in that: The flexible plate includes a first sector block (4) and a second sector block (5); there are multiple sets of the first sector block (4) and the second sector block (5), which are staggered to form a ring structure; the cross-section of the first sector block (4) and the second sector block (5) is a V-shaped structure, and the opening faces away from the center of the ring structure; the first sector block (4) and the second sector block (5) are bent in opposite directions, and the first sector block (4) and the second sector block (5) of adjacent flexible plates that are close to each other are welded together at the welding area to form a butterfly shape that is interlocked; then the second sector block (5) is welded together with the first sector block (4) of the next adjacent flexible plate that is close to each other to form a series disc-shaped flexible device.
3. The variable-height support column structure as described in claim 2, characterized in that: The diameter of the central circular hole of the flexible plate is larger than the diameter of the displacement output rod of the driving device (3). The end of the side wall of the lowest column (6) is fixed to the foundation structure, and the top of the side wall of the uppermost column (6) is fixed to the series butterfly flexible device (2) and the driving device (3). A connecting joint is provided at the top.
4. The variable-height support column structure as described in claim 1, characterized in that: The diameter of the displacement output rod of the drive device (3) is no greater than 15 mm, and the drive device (3) adopts a hydraulic actuator or an electric push rod.
5. The variable-height support column structure as described in claim 1, characterized in that: The flexible plate is made of a 1.5 mm thick, 90 mm diameter circular aluminum plate. The diameter of the circular hole at the center of the flexible plate is 15 mm, the diameter of the middle circular plate is 40 mm, and the outer edge of the plate is divided into 12 fan-shaped areas. The spacing between adjacent flexible plates is 10 mm. The equivalent deflection of the elastic bending of the fan-shaped area of the flexible plate is no more than 10°, and the maximum elastic bending of a single flexible plate in both directions is 8 mm.
6. The variable-height support column structure as described in claim 1, characterized in that: The column (6) consists of three sections, each with a hexagonal tube wall thickness of 2 mm and a length of 300 mm. The inner diameter of the uppermost hexagonal tube is 92 mm. In the initial state, the uppermost section has a height of 400 mm, the middle section has a height of 350 mm, and the lowermost section has a height of 300 mm. When the height is increased to the maximum, the uppermost section has a height of 700 mm, the middle section has a height of 500 mm, and the nesting section between each section is 100 mm long.