Telescopic structure
By designing special postures for sliding telescopic components and telescopic parts, the problem of limited extension stroke in existing telescopic structures has been solved, achieving maximum extension and minimum retraction of the bracket, resulting in a more compact structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
The existing telescopic structure has a limited extension length at the output end, which means that it cannot achieve a large extension stroke when extended, and cannot reduce the overall height when retracted, resulting in a non-compact structure.
The special posture design of the sliding telescopic component and the telescopic part allows the telescopic part to be set at an acute angle when it is retracted, and the sliding part to extend when it is perpendicular to the telescopic part, so that the bracket is lowered to the lowest point and remains perpendicular when it is extended to increase the extension stroke.
The bracket is lowered to its lowest point when retracted and its extension stroke is increased when extended, resulting in a more compact overall structure that aligns with the trend of product miniaturization.
Smart Images
Figure CN224094171U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical structure technology of high-end medical equipment, and in particular to a telescopic structure. Background Technology
[0002] In some mechanical structures with telescopic functions, the output end of most telescopic structures can only obtain a limited telescopic stroke. For example, in telescopic structures using electric cylinders, pneumatic cylinders, or hydraulic cylinders as telescopic components, the extended length of the telescopic component is less than its overall length after retraction. This results in the overall structural height of the telescopic structure after retraction being greater than its achievable telescopic stroke under a certain extended stroke. Consequently, the telescopic structure cannot obtain a large extended stroke when extended and cannot reduce its overall height when retracted. Utility Model Content
[0003] The purpose of this utility model is to provide a telescopic structure that, when in the retracted state, allows the bracket to be lowered to its lowest point, and when in the extended state, allows for an increase in the extension stroke of the bracket.
[0004] To achieve this objective, the present invention adopts the following technical solution:
[0005] Telescopic structure, including:
[0006] bracket;
[0007] The driving mechanism includes sliding telescopic components symmetrically arranged on both sides of the bracket along a first direction. The sliding telescopic components include a sliding component and a telescopic component. The telescopic component is hinged between the output end of the sliding component and the bracket. The sliding component can drive one end of the telescopic component that is hinged to the sliding component to reciprocate along the first direction. The telescopic component can drive the bracket to extend or retract along a second direction.
[0008] When the telescopic structure is in the retracted state, the telescopic component and the sliding component are set at an acute angle;
[0009] When the telescopic structure is in the extended state, the telescopic component and the sliding component are perpendicular to each other;
[0010] The first direction and the second direction are perpendicular to each other.
[0011] As an alternative, the telescopic component includes a telescopic drive and a moving component. The fixed end of the telescopic drive is hinged to the output end of the sliding component, and the moving component is slidably connected to the housing of the telescopic drive and simultaneously hinged to the output end of the telescopic drive and the bracket.
[0012] As an alternative, two movable components are provided, and the two movable components are slidably connected to the two sides of the housing along a third direction;
[0013] The first direction, the second direction, and the third direction are perpendicular to each other.
[0014] As an alternative, the ends of the two moving parts near the output end of the telescopic drive are provided with a first hinge shaft, and the output end of the telescopic drive is hinged to the first hinge shaft.
[0015] As an alternative, the bracket includes a bottom support frame and a connecting frame disposed on the bottom support frame and corresponding to each of the sliding telescopic components. The connecting frame is provided with a second hinge axis, and both of the moving parts are hinged to the second hinge axis.
[0016] As an alternative, the connecting frame includes two spaced-apart connecting plates and a connecting rod connecting the two connecting plates. The second hinge shaft is connected between the two connecting plates. When the telescopic structure is in the extended state, the two moving parts can abut against the connecting rod.
[0017] As an alternative, the telescopic component further includes a first slide rail and a first slider that are slidably connected to each other, wherein one of the first slider and the first slide rail is fixedly connected to the housing and the other is fixedly connected to the moving part.
[0018] As an alternative, the telescopic drive component can be an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.
[0019] As an optional embodiment, the sliding component includes:
[0020] Sliding drive components;
[0021] A second guide rail and a second slider are slidably connected to each other, and the telescopic component is hinged to the second slider;
[0022] The screw is threadedly connected to the second slider, and the sliding drive can drive the screw to rotate so that the second slider reciprocates along the first direction.
[0023] As an alternative, multiple drive mechanisms are provided, and the multiple drive mechanisms are spaced apart along a third direction;
[0024] The first direction, the second direction, and the third direction are perpendicular to each other.
[0025] The beneficial effects of this utility model are:
[0026] The telescopic structure provided by this utility model, in the retracted state, enables the bracket to be lowered to the lowest point along the second direction by setting the telescopic component and the sliding component to be distributed at an acute angle; in the extended state, the telescopic component can be kept perpendicular to the sliding component, enabling the sliding component to drive the bracket to extend along the second direction through the telescopic component, and the telescopic component can also continue to drive the bracket to extend along the second direction, thereby increasing the extension stroke of the telescopic structure, making the overall structure more compact, and further conforming to the development trend of product miniaturization. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the telescopic structure provided in an embodiment of the present invention;
[0028] Figure 2 This is a schematic diagram of the sliding component involved in the embodiment of this utility model;
[0029] Figure 3 This is a schematic diagram of the structure of the telescopic component involved in the embodiment of this utility model;
[0030] Figure 4 This is a schematic diagram of the telescopic component with the outer shell hidden, according to an embodiment of the present utility model;
[0031] Figure 5 This is a schematic diagram of the bracket and six-degree-of-freedom platform involved in the embodiments of this utility model.
[0032] In the picture:
[0033] 1. Bracket; 11. Bottom support frame; 12. Connecting frame; 121. Connecting plate; 1211. First plate; 1212. Second plate; 122. Connecting rod; 123. Second hinge shaft; 13. Connecting beam;
[0034] 2. Drive mechanism; 21. Sliding telescopic assembly; 211. Sliding component; 2111. Sliding drive component; 2112. Second guide rail; 2113. Second slider; 2114. Screw; 212. Telescopic component; 2121. Telescopic drive component; 2121a. Housing; 2122. Moving component; 2123. First hinge shaft; 2124. First slide rail; 2125. First slider;
[0035] 3. Supporting platform;
[0036] 4. Six-degree-of-freedom platform; 41. Rotary drive mechanism; 42. Translation mechanism; 43. Tilting mechanism. Detailed Implementation
[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature 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," and "under" the second feature includes the first feature 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.
[0040] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0041] like Figures 1-5 As shown, this embodiment of the utility model provides a telescopic structure, which includes a bracket 1 and a drive mechanism 2. The drive mechanism 2 includes sliding telescopic components 21 symmetrically arranged on both sides of the bracket 1 along a first direction. Each sliding telescopic component 21 includes a sliding member 211 and a telescopic member 212. The telescopic member 212 is hinged between the output end of the sliding member 211 and the bracket 1. The sliding member 211 can drive one end of the telescopic member 212, which is hinged to the sliding member 211, to reciprocate along the first direction. The telescopic member 212 can drive the bracket 1 to extend or retract along a second direction.
[0042] When the telescopic structure is in the retracted state, the telescopic component 212 and the sliding component 211 are set at an acute angle, that is, the telescopic component 212 is set at an angle. The telescopic component 212 reduces the space it occupies in the second direction, which can realize the bracket 1 being completely lowered to the lowest point.
[0043] When the telescopic structure is in the extended state, the telescopic component 212 and the sliding component 211 are perpendicular to each other. That is, after the sliding component 211 drives the end of the telescopic component 212 that is hinged to the sliding component 211 to move along the first direction, the telescopic component 212 can remain parallel to the second direction. It can be understood that after the sliding component 211 drives the end of the telescopic component 212 that is hinged to the sliding component 211 to move along the first direction, the telescopic component 212 is perpendicular to the sliding component 211. During the posture transformation of the telescopic component 212, the bracket 1 can also be driven to move a certain distance along the second direction. After the sliding component 211 is in position, the telescopic component 212 can continue to drive the bracket 1 to extend along the second direction.
[0044] When the telescopic structure is in the retracted state, by setting the telescopic component 212 and the sliding component 211 to be distributed at an acute angle, the bracket 1 can be lowered to the lowest point in the second direction. When the telescopic structure is in the extended state, the telescopic component 212 can remain perpendicular to the sliding component 211, so that the sliding component 211 drives the bracket 1 to extend in the second direction through the telescopic component 212, and the telescopic component 212 can also continue to drive the bracket 1 to extend in the second direction, thereby increasing the extension stroke of the telescopic structure.
[0045] Specifically, the telescopic structure also includes a support platform 3, and a sliding component 211 is disposed on the support platform 3. When the telescopic structure is in the retracted state, the bracket 1 can be lowered to abut against the support platform 3.
[0046] Optionally, such as Figure 2 As shown, the sliding component 211 includes a sliding drive component 2111, a second guide rail 2112, a second slider 2113, and a screw 2114. Both the second drive component and the second guide rail are mounted on the support platform 3. The second slider 2113 is slidably mounted on the second guide rail 2112. The telescopic component 212 is hinged to the second slider 2113. The screw 2114 is threadedly connected to the second slider 2113. The sliding drive component 2111 can drive the screw 2114 to rotate, causing the second slider 2113 to reciprocate along a first direction. This structure achieves the attitude conversion of the second slider 2113 driving the telescopic component 212 by using the screw 2114, resulting in a simple structure.
[0047] In this embodiment, the sliding drive component 2111 is a motor.
[0048] Optionally, such as Figures 3-5As shown, the telescopic component 212 includes a telescopic drive component 2121 and a moving component 2122. The fixed end of the telescopic drive component 2121 is hinged to the second slider 2113 of the sliding component 211. The moving component 2122 is slidably connected to the outer shell 2121a of the telescopic drive component 2121. At the same time, the moving component 2122 is hinged to the output end of the telescopic drive component 2121 and the bracket 1. The output end of the telescopic drive component 2121 can drive the moving component 2122 to reciprocate, so that the moving component 2122 can drive the bracket 1 to extend or retract in the second direction.
[0049] In this embodiment, the movable component 2122 is made of rectangular tubing.
[0050] Furthermore, two movable parts 2122 are provided, and the two movable parts 2122 are slidably connected to the two sides of the outer shell 2121a of the telescopic drive member 2121 along a third direction. By providing two movable parts 2122, when the telescopic drive member 2121 drives the movable parts 2122 to reciprocate, the bracket 1 can be driven to extend or retract along the second direction through the two movable parts 2122, making the structure more stable.
[0051] In this embodiment, the first direction, the second direction, and the third direction are perpendicular to each other.
[0052] Furthermore, the ends of the two moving parts 2122 near the output end of the telescopic drive 2121 are provided with a first hinge shaft 2123. The first hinge shaft 2123 is vertically connected between the two moving parts 2122. The output end of the telescopic drive 2121 is hinged to the first hinge shaft 2123, so that the telescopic drive 2121 can drive the two moving plates to reciprocate at the same time.
[0053] Optionally, multiple drive mechanisms 2 are provided, and the multiple drive mechanisms 2 are distributed at intervals along a third direction. By driving the bracket 1 to move simultaneously through multiple drive mechanisms 2, the stability and load-bearing capacity of the bracket 1 are improved.
[0054] In this embodiment, there are two drive mechanisms 2.
[0055] Optionally, the bracket 1 includes a bottom support frame 11 and connecting frames 12 disposed on the bottom support frame 11 and corresponding one-to-one with the sliding telescopic components 21. In this embodiment, four connecting frames 12 are provided, with the four connecting frames 12 forming a group of two, and each group of connecting frames 12 is provided with a connecting beam 13. Further, each connecting frame 12 is also provided with a second hinge shaft 123, and both moving parts 2122 are hinged to the second hinge shaft 123. The connecting beam 13 is also hinged to the second hinge shaft 123, and the connecting beam 13 is located between two connecting frames 12.
[0056] In this embodiment, the telescopic structure further includes a six-degree-of-freedom platform 4. The six-degree-of-freedom platform 4 includes a rotation drive mechanism 41, a translation mechanism 42, and a tilting mechanism 43. The rotation drive mechanism 41 is fixedly mounted on the bottom support frame 11. The translation mechanism 42 is located at the output end of the rotation drive mechanism 41, and the tilting mechanism 43 is located at the output end of the translation mechanism 42. The rotation drive mechanism 41 can drive the translation mechanism 42 to rotate, thereby causing the tilting mechanism 43 to rotate. The translation mechanism 42 can drive the tilting mechanism 43 to translate within a plane formed by the first and third directions. The output end of the tilting mechanism 43 can swing and tilt. This six-degree-of-freedom platform 4 enables multi-degree-of-freedom movements of an object.
[0057] Specifically, the connecting frame 12 includes two connecting plates 121 spaced apart along a third direction and a connecting rod 122 connected between the two connecting plates 121. A second hinge shaft 123 is connected between the two connecting plates 121. When the telescopic structure is in the extended state, the two moving parts 2122 can abut against the connecting rod 122. This structure makes the bracket 1 more stable when the telescopic structure is in the extended state.
[0058] To reduce friction between the moving part 2122 and the connecting plate 121, the connecting plate 121 is configured as a right-angle plate. The first plate 1211 of the right-angle plate is fixedly connected to the bottom support frame 11, and the second plate 1212 of the right-angle plate extends toward the sliding telescopic assembly 21. When the telescopic structure is in the extended state, the moving part 2122 is parallel to the first plate 1211 and is located on the side of the second plate 1212 facing the bottom support frame 11, thus avoiding frictional interference between the moving part 2122 and the first plate 1211.
[0059] Optionally, the telescopic component 212 further includes a first slider 2125 and a first slide rail 2124 that are slidably connected to each other. One of the first slider 2125 and the first slide rail 2124 is fixedly connected to the outer casing 2121a, and the other is fixedly connected to the moving component 2122. This structure, through the slidable connection between the first slider 2125 and the first slide rail 2124, enables the reciprocating movement of the moving component 2122, improving the smoothness of the movement of the moving component 2122.
[0060] In this embodiment, the moving part 2122 is provided with a first slide rail 2124, and the outer shell 2121a is provided with a first slider 2125.
[0061] Optionally, the telescopic drive component 2121 can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. In this embodiment, the telescopic drive component 2121 is an electric cylinder, which can achieve high-precision motion control, smooth movement, and adaptability to harsh environments.
[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A telescopic structure, characterized in that, include: Bracket (1); The drive mechanism (2) includes a sliding telescopic assembly (21) symmetrically arranged on both sides of the bracket (1) along a first direction. The sliding telescopic assembly (21) includes a sliding component (211) and a telescopic component (212). The telescopic component (212) is hinged between the output end of the sliding component (211) and the bracket (1). The sliding component (211) can drive one end of the telescopic component (212) that is hinged to the sliding component (211) to reciprocate along the first direction towards or away from the bracket. The telescopic component (212) can drive the bracket (1) to extend or retract along a second direction. When the telescopic structure is in the retracted state, the telescopic component (212) and the sliding component (211) are set at an acute angle; When the telescopic structure is in the extended state, the telescopic component (212) and the sliding component (211) are perpendicular to each other; The first direction and the second direction are perpendicular to each other.
2. The telescopic structure according to claim 1, characterized in that, The telescopic component (212) includes a telescopic drive component (2121) and a moving component (2122). The fixed end of the telescopic drive component (2121) is hinged to the output end of the sliding component (211). The moving component (2122) is slidably connected to the outer shell (2121a) of the telescopic drive component (2121) and is simultaneously hinged to the output end of the telescopic drive component (2121) and the bracket (1).
3. The telescopic structure according to claim 2, characterized in that, Two movable parts (2122) are provided, and the two movable parts (2122) are slidably connected to the two sides of the outer shell (2121a) along a third direction; The first direction, the second direction, and the third direction are perpendicular to each other.
4. The telescopic structure according to claim 3, characterized in that, The ends of the two movable members (2122) near the output end of the telescopic drive member (2121) are provided with a first hinge shaft (2123), and the output end of the telescopic drive member (2121) is hinged to the first hinge shaft (2123).
5. The telescopic structure according to claim 3, characterized in that, The bracket (1) includes a bottom support frame (11) and a connecting frame (12) disposed on the bottom support frame (11) and corresponding to the sliding telescopic assembly (21). The connecting frame (12) is provided with a second hinge shaft (123), and both of the moving parts (2122) are hinged to the second hinge shaft (123).
6. The telescopic structure according to claim 5, characterized in that, The connecting frame (12) includes two spaced connecting plates (121) and a connecting rod (122) connected between the two connecting plates (121). The second hinge shaft (123) is connected between the two connecting plates (121). When the telescopic structure is in the extended state, the two moving parts (2122) can abut against the connecting rod (122).
7. The telescopic structure according to claim 2, characterized in that, The telescopic component (212) further includes a first slide rail (2124) and a first slider (2125) that are slidably connected to each other. Of the first slider (2125) and the first slide rail (2124), one is fixedly connected to the outer shell (2121a) and the other is fixedly connected to the moving part (2122).
8. The telescopic structure according to claim 2, characterized in that, The telescopic drive component (2121) is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.
9. The telescopic structure according to claim 1, characterized in that, The sliding component (211) includes: Sliding drive component (2111); The second guide rail (2112) and the second slider (2113) are slidably connected to each other, and the telescopic component (212) is hinged to the second slider (2113); The screw (2114) is threadedly connected to the second slider (2113), and the sliding drive (2111) can drive the screw (2114) to rotate so that the second slider (2113) reciprocates along the first direction.
10. The telescopic structure according to any one of claims 1-9, characterized in that, Multiple drive mechanisms (2) are provided, and the multiple drive mechanisms (2) are distributed at intervals along a third direction; The first direction, the second direction, and the third direction are perpendicular to each other.