Lift table leg mechanism and lift table
By incorporating a cable winding structure within the lifting table legs, the problems of cable tangling and stringent size requirements are resolved, thus achieving a miniaturized lifting table leg design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO TUOTUO RIVER DESIGN CO
- Filing Date
- 2025-04-22
- Publication Date
- 2026-06-09
AI Technical Summary
The cables of existing height-adjustable desks are prone to tangling during the lifting process, and they have high requirements for the size of the desk legs, resulting in a large overall size.
The cable is fixed to the top of the telescopic table leg body using a coiled structure. The cable is threaded through the telescopic table leg body, with the first end fixed to the bottom. The coiled structure keeps the cable taut and prevents it from becoming loose or tangled.
The cable remains taut throughout the lifting process to prevent tangling, reducing the size requirements of the table legs and the space they occupy, thus improving ease of use.
Smart Images
Figure CN224330606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of height-adjustable desk technology, and in particular to a height-adjustable desk leg mechanism and a height-adjustable desk. Background Technology
[0002] Currently, existing height-adjustable desks include height-adjustable legs, a drive unit located on one side of the height-adjustable legs, and a tabletop connected to the top of the height-adjustable legs. The drive unit drives the movable end of the height-adjustable legs to move vertically, thereby raising and lowering the tabletop.
[0003] However, currently, the internal cables of height-adjustable desks typically use spring-loaded cables or a layered structure within conduits. When using spring-loaded cables, the cable ends are fixed at the bottom and top of the running legs, and then the spring's deformation is calculated before inserting it into the legs. The layered conduit approach involves placing longer cables in separate conduits, which requires specific leg dimensions and internal space partitioning, resulting in complex assembly and inconvenient operation. Regardless of whether spring-loaded cables or a layered conduit structure are used, the cables are prone to tangling during the desk's movement, and the size requirements for the legs are high, resulting in a larger overall volume.
[0004] Therefore, there is an urgent need for a height-adjustable table leg mechanism and a height-adjustable table to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a lifting table leg mechanism and a lifting table to solve the technical problems existing in the prior art, such as the cables easily getting tangled during the lifting process of the lifting table, and the high requirements for the size of the lifting table legs and the large overall volume.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] On the one hand, a height-adjustable table leg mechanism is provided, comprising:
[0008] Telescopic table legs body;
[0009] The cable is threaded through the body of the telescopic table leg, with its first end fixed to the bottom of the telescopic table leg body.
[0010] A coiled structure is fixedly installed on the top of the telescopic table leg body, and the cable is connected to the coiled structure.
[0011] The coil structure can keep the cable taut during lifting and lowering.
[0012] Optionally, the winding structure includes a fixed base, a rotating component, and an elastic component; the fixed base is disposed on the top of the telescopic table leg body, the rotating component is capable of rotating relative to the fixed base around its own axis, and one end of the elastic component is connected to the fixed base, and the other end is connected to the rotating component.
[0013] Optionally, a fixed post is provided on the fixed base, the rotating component is sleeved on the fixed post and can rotate around the fixed post, and the cable is connected to the rotating component.
[0014] Optionally, a spiral groove is provided on the outer periphery of the rotating component, and the rotating component gradually narrows at the end near the fixed seat along the axial direction of the fixed column;
[0015] And / or, a planar bearing is also provided on the fixed base, the planar bearing being sleeved on the bottom of the fixed column to support the rotating component.
[0016] Optionally, the telescopic table leg body is provided with a connector, and the second end of the cable passes through the coil structure and is fixedly connected to the connector.
[0017] Optionally, the telescopic table leg body includes a motor box and inner and outer tube assemblies, the inner and outer tube assemblies are telescopically configurable, and the motor box is connected to the top of the inner and outer tube assemblies; the winding structure is disposed in the motor box.
[0018] Optionally, it also includes a guide structure disposed at the connection between the motor box and the inner and outer tube assembly. The guide structure includes a guide seat and a roller disposed in the guide seat. The cable is connected to the winding structure through the roller.
[0019] Optionally, the roller includes at least one guide wheel and two position limiting wheels. The guide wheel is disposed at the connection between the motor box and the inner and outer tube assembly. The two position limiting wheels are disposed in the middle of the inner and outer tube assembly and are arranged side by side in the horizontal direction.
[0020] Optionally, it also includes a lead wire structure; the lead wire structure is disposed at the bottom of the inner and outer tube assembly, and the first end of the cable is fixedly connected to the lead wire structure; the lead wire structure includes a socket, and the telescopic table leg body has an opening corresponding to the socket, and the first end of the cable is connected to the socket.
[0021] On the other hand, a height-adjustable table is provided, including a tabletop and the aforementioned height-adjustable table leg mechanism, wherein the tabletop is disposed on the height-adjustable table leg mechanism.
[0022] The beneficial effects of this utility model are:
[0023] The lifting table leg mechanism proposed in this utility model involves threading a cable through the body of the telescopic table leg, with the first end fixed to the bottom of the body. A cable winding structure is fixedly installed at the top of the body, and the second end of the cable is connected to the winding structure. The winding structure keeps the cable taut during lifting, preventing it from becoming tangled due to excessive looseness. Furthermore, because the cable remains taut throughout the lifting process, there is no need to leave a large space for the cable to avoid tangling, which significantly reduces the size of the telescopic table leg body.
[0024] The lifting table proposed in this utility model keeps the cable taut during operation, avoiding the technical problems of cable tangling and the need for a large space. The lifting table leg mechanism occupies little space, making the lifting table more convenient to use. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.
[0026] Figure 1 This is a first view of the lifting table leg mechanism provided in this embodiment of the utility model;
[0027] Figure 2 This is a second view of the lifting table leg mechanism provided in this embodiment of the utility model;
[0028] Figure 3 This is a third view of the lifting table leg mechanism provided in this embodiment of the utility model;
[0029] Figure 4 This is a fourth view of the lifting table leg mechanism provided in this embodiment of the utility model;
[0030] Figure 5 This is the fifth view of the lifting table leg mechanism provided in this embodiment of the utility model;
[0031] Figure 6 This is an exploded view of the coil structure provided in this embodiment of the utility model;
[0032] Figure 7 This is a cross-sectional view of the coil structure provided in this embodiment of the utility model;
[0033] Figure 8 yes Figure 3 Enlarged view of point A in the middle.
[0034] In the picture:
[0035] 1. Telescopic table leg body; 11. Inner and outer tube assembly; 111. Opening; 12. Motor box;
[0036] 2. Cables;
[0037] 3. Winding structure; 31. Fixing base; 311. Fixing post; 312. Elongated hole; 32. Rotating component; 321. Spiral groove; 322. First fixing groove; 33. Elastic component; 34. Planar bearing; 35. Wire clamping cover;
[0038] 4. Guide structure; 41. Guide seat; 42. Roller; 421. Guide wheel; 422. Position limiting wheel;
[0039] 5. Drive assembly; 51. Lead screw assembly; 52. Drive component;
[0040] 6. Lead wire structure; 61. Socket;
[0041] 7. Connector. Detailed Implementation
[0042] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.
[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.
[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0045] This utility model discloses a lifting table leg mechanism, such as Figures 1 to 4 As shown, the lifting table leg mechanism includes a telescopic table leg body 1, a cable 2, and a cable winding structure 3. The cable 2 passes through the telescopic table leg body 1, with its first end fixed to the bottom of the telescopic table leg body 1. The cable winding structure 3 is fixedly installed at the top of the telescopic table leg body 1, and the cable 2 is connected to the cable winding structure 3. The cable winding structure 3 can keep the cable 2 taut during the lifting process.
[0046] Understandably, cable 2 is threaded inside the telescopic table leg body 1, with its first end fixed to the bottom of the telescopic table leg body 1. A cable winding structure 3 is fixed to the top of the telescopic table leg body 1. Cable 2 is connected to the cable winding structure 3, which keeps cable 2 taut during lifting and lowering. This prevents cable 2 from becoming tangled due to excessive slack within the telescopic table leg body 1 during lifting and lowering, and also prevents it from breaking due to the inability of cable 2 to extend with the height of the telescopic table leg body 1. Furthermore, because cable 2 remains taut throughout the lifting and lowering process, the telescopic table leg body 1 does not require a large space to prevent cable 2 from tangling; only a small space is needed to accommodate cable 2, significantly reducing the size of the telescopic table leg body 1.
[0047] Furthermore, the winding structure 3 includes a fixed base 31, a rotating member 32, and an elastic member 33. The fixed base 31 is disposed on the top of the telescopic table leg body 1, the rotating member 32 can rotate relative to the fixed base 31 around its own axis, and one end of the elastic member 33 is connected to the fixed base 31, and the other end is connected to the rotating member 32. In some specific embodiments, such as Figure 6As shown, the top of the rotating component 32 has a first fixing groove 322, which is used to lead out the cable 2 for connection with the connector 7. It can be understood that the cable 2 is engaged in the first fixing groove 322 and wound around the rotating component 32. During the lifting and lowering process, the rotating component 32 rotates with the cable 2, enabling it to wind or unwind the cable 2. Specifically, when the telescopic table leg body 1 extends, the elastic element 33 is stretched and elastically deformed due to the rotation of the rotating component 32 driven by the cable 2. When the telescopic table leg body 1 shortens, the rotating component 32 rotates in the opposite direction under the elastic restoring force of the elastic element 33, winding the cable 2 and keeping it taut, preventing tangling even if the length of the cable 2 exceeds the length of the telescopic table leg body 1.
[0048] In some specific embodiments, such as Figure 6 As shown, the fixed base 31 is a cylindrical shape with one end open, and it is fixed to the top of the telescopic table leg body 1 by screws. One end of the rotating component 32 is connected to the fixed base 31 and can rotate relative to it. An axially extending elongated hole 312 is provided on the side wall of the fixed base 31, through which the cable 2 extends. This arrangement limits the position of the cable 2 and prevents it from swaying and tangling during movement.
[0049] Furthermore, in some embodiments, a fixed post 311 is provided on the fixed base 31, and the rotating component 32 is sleeved on the fixed post 311 and can rotate around the fixed post 311. The cable 2 is connected to the rotating component 32. A connector 7 is provided on the telescopic table leg body 1, and the second end of the cable 2 passes through the winding structure 3 and is fixedly connected to the connector 7. In some specific embodiments, such as Figure 1 and Figure 6 As shown, the rotating component 32 has a first locking groove, the fixed post 311 has a second locking groove, and the elastic component 33 is a coil spring, with both ends of the coil spring respectively locked into the first locking groove and the second locking groove. The connector 7 is fixedly installed on the motor box 12, and the connector 7 is also a socket for supplying power to the plug.
[0050] Furthermore, to facilitate the rotation of the rotating component 32, such as Figure 6 As shown, in some embodiments, a planar bearing 34 is also provided on the fixed base 31. The planar bearing 34 is sleeved on the bottom of the fixed column 311 to support the rotating component 32. This arrangement avoids friction between the rotating component 32 and the fixed base 31, reduces energy loss, and facilitates the rotation of the rotating component 32 when the cable 2 is stretched.
[0051] More specifically, the cable winding structure 3 also includes a cable clamping cover 35, which is fixedly connected to the rotating member 32. The cable clamping cover 35 is used to prevent the cable 2 from detaching from the rotating member 32 when the rotating member 32 is rotating, which would cause the cable 2 to fail to tighten and become tangled.
[0052] In some specific embodiments, the wire clamping cover 35 has a first through hole, through which a fastener passes and connects to the fixing post 311 to prevent the wire clamping cover 35 from detaching and falling off. The wire clamping cover 35 can rotate relative to the fastener. A locking block is provided on the side of the wire clamping cover 35 near the rotating member 32. The locking block cooperates with the first locking groove to ensure that the wire clamping cover 35 can rotate with the rotating member 32, thereby better preventing the cable 2 from falling off the rotating member 32.
[0053] Furthermore, such as Figure 7 As shown, in some embodiments, a spiral groove 321 is provided on the outer periphery of the rotating member 32. The spiral groove 321 can guide the winding of the cable 2 on the rotating member 32 during the lifting and lowering process, avoiding the cable 2 from stacking and winding, thereby reducing the risk of wear or breakage caused by the messy cable 2. The rotating member 32 gradually narrows at the end near the fixed base 31 along the axial direction of the fixed column 311. This arrangement makes the rotating member 32 appear as an inverted triangle when viewed from the side, which can further ensure that the cable 2 is always within the spiral groove 321 when pulling out or winding the cable 2, avoiding the stacking and winding of the cable 2.
[0054] Furthermore, in some embodiments, the telescopic table leg body 1 includes a motor housing 12 and inner and outer tube assemblies 11, the inner and outer tube assemblies 11 being telescopically oriented, and the motor housing 12 being connected to the top of the inner and outer tube assemblies 11; a winding structure 3 is disposed in the motor housing 12. Specifically, in some specific embodiments, such as Figure 1 As shown, the motor box 12 is vertically connected to the top of the inner and outer tube assembly 11 and communicates with the interior of the inner and outer tube assembly 11. The inner and outer tube assembly 11 includes several tube segments that are nested together in sequence. The outermost tube segment is in contact with the ground, and the innermost tube segment is connected to the motor box 12. With this configuration, the bottom structure of the inner and outer tube assembly 11 is larger, making it less prone to swaying during lifting and lowering, and the force is more evenly distributed, reducing the risk of tipping over due to an excessively high center of gravity.
[0055] Furthermore, the lifting table leg mechanism also includes a guide structure 4 located at the connection between the motor box 12 and the inner and outer tube assembly 11. The guide structure 4 includes a guide seat 41 and rollers 42 disposed within the guide seat 41. The cable 2 is connected to the winding structure 3 via the rollers 42. In some specific embodiments, such as... Figure 1 , Figure 3 and Figure 8 As shown, the guide seat 41 is L-shaped. One end of the guide seat 41 is attached to the bottom of the motor box 12 and fastened with bolts, etc., while the other end extends into the innermost tube. The guide seat 41 is equipped with rollers 42, which convert the sliding friction of the cable 2 during stretching into rolling friction, significantly reducing the friction force of the cable 2 during stretching and making it more convenient for the cable 2 to be pulled out and pulled in.
[0056] Furthermore, in some specific embodiments, such as Figure 8 As shown, the roller 42 includes at least one guide wheel 421 and two position limiting wheels 422. The guide wheel 421 is located at the connection between the motor housing 12 and the inner and outer tube assembly 11. The two position limiting wheels 422 are located in the middle of the inner and outer tube assembly 11 and are arranged side by side in the horizontal direction. It can be understood that the guide wheel 421 is located at the corner of the guide seat 41 to facilitate the change of the direction of cable 2 being pulled in and out. The two position limiting wheels 422 are located in the section of the guide seat 41 that extends into the innermost tube and are arranged side by side, which restricts the position of the cable 2 within the inner and outer tube assembly 11, thereby reducing the swaying of the cable 2 as the inner and outer tube assembly 11 extends or shortens.
[0057] Furthermore, the lifting table leg mechanism also includes a drive assembly 5 for driving the extension and retraction of the inner and outer tube assemblies 11.
[0058] In some specific embodiments, such as Figure 5 As shown, the drive assembly 5 includes a lead screw assembly 51 and a drive member 52. The drive member 52 is disposed inside the motor box 12. The lead screw assembly 51 is sleeved inside the inner and outer tube assembly 11, with its first end fixed to the outermost tube body and its other end passing through the motor box 12 and connected to the drive member 52.
[0059] Furthermore, in some embodiments, the lifting table leg mechanism further includes a lead wire structure 6. The lead wire structure 6 is disposed at the bottom of the inner and outer tube assembly 11, and the first end of the cable 2 is fixedly connected to the lead wire structure 6. In some specific embodiments, such as... Figure 5 As shown, the lead wire structure 6 is located at the bottom of the outermost tube. The first segment of the cable 2 is fixedly connected to the lead wire structure 6, thereby fixing the first end of the cable 2 relative to the bottom of the outermost tube. When the inner and outer tube assembly 11 extends, the cable 2 is pulled out from the winding structure 3 and extends into the innermost tube under the action of the guide wheel 421. When the inner and outer tube assembly 11 shortens, the cable 2 is wound in the threaded groove of the rotating member 32 under the action of the elastic restoring force of the elastic element 33 in the winding structure 3.
[0060] Furthermore, in some embodiments, the lead wire structure 6 includes a socket 61, and the telescopic table leg body 1 has an opening 111 corresponding to the socket 61, with the first end of the cable 2 connected to the socket 61. Specifically, as shown... Figure 4 and Figure 5 As shown, the lead wire structure 6 is located at the bottom of the lead screw assembly 51. The lead wire structure 6 has a lead wire fixing bracket for securing the cable 2, ensuring a stable electrical connection between the lead wire fixing bracket and the socket 61. The opening 111 is located on the outermost tube, and the socket 61 on the lead wire structure 6 is correspondingly positioned to correspond to the opening 111. This arrangement provides a reasonable placement for the socket 61, facilitating electrical connection to the lifting table leg mechanism and enabling easy maintenance and replacement in case of socket 61 malfunction.
[0061] This utility model also discloses a height-adjustable table, including the aforementioned height-adjustable table leg mechanism. Since the height-adjustable table disclosed in this utility model has the aforementioned height-adjustable table leg mechanism, it at least possesses the beneficial effects of the aforementioned height-adjustable table leg mechanism, which will not be repeated here.
[0062] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A lift table leg mechanism characterized by, include: Telescopic table leg body (1); Cable (2) is threaded through the telescopic table leg body (1), with its first end fixed to the bottom of the telescopic table leg body (1); A coil structure (3) is fixedly installed on the top of the telescopic table leg body (1), and the cable (2) is connected to the coil structure (3); The coil structure (3) is able to keep the cable (2) taut during lifting and lowering.
2. The lifting table leg mechanism according to claim 1, characterized in that, The winding structure (3) includes a fixed base (31), a rotating component (32), and an elastic component (33); the fixed base (31) is located on the top of the telescopic table leg body (1), the rotating component (32) can rotate relative to the fixed base (31) around its own axis, and one end of the elastic component (33) is connected to the fixed base (31), and the other end is connected to the rotating component (32).
3. The lifting table leg mechanism according to claim 2, characterized in that, The fixed base (31) is provided with a fixed post (311), the rotating part (32) is sleeved on the fixed post (311) and can rotate around the fixed post (311), and the cable (2) is connected to the rotating part (32).
4. The lifting table leg mechanism according to claim 3, characterized in that, The rotating component (32) has a spiral groove (321) on its outer periphery; Along the axial direction of the fixed column (311), the rotating member (32) gradually narrows at one end near the fixed seat (31); And / or, a plane bearing (34) is also provided on the fixed base (31), the plane bearing (34) being sleeved on the bottom of the fixed column (311) to support the rotating part (32).
5. The lifting table leg mechanism according to any one of claims 1-4, characterized in that, The telescopic table leg body (1) is provided with a connector (7), and the second end of the cable (2) passes through the coil structure (3) and is fixedly connected to the connector (7).
6. The lifting table leg mechanism according to any one of claims 1-4, characterized in that, The telescopic table leg body (1) includes a motor box (12) and an inner and outer tube assembly (11). The inner and outer tube assembly (11) is telescopically oriented, and the motor box (12) is connected to the top of the inner and outer tube assembly (11). The winding structure (3) is disposed in the motor box (12).
7. The lifting table leg mechanism according to claim 6, characterized in that, It also includes a guide structure (4) located at the connection between the motor box (12) and the inner and outer tube assembly (11). The guide structure (4) includes a guide seat (41) and a roller (42) located in the guide seat (41). The cable (2) is connected to the winding structure (3) via the roller (42).
8. The lifting table leg mechanism according to claim 7, characterized in that, The roller (42) includes at least one guide wheel (421) and two position limiting wheels (422). The guide wheel (421) is located at the connection between the motor box (12) and the inner and outer tube assembly (11). The two position limiting wheels (422) are located in the middle of the inner and outer tube assembly (11) and are arranged side by side in the horizontal direction.
9. The lifting table leg mechanism according to claim 6, characterized in that, It also includes a lead wire structure (6); the lead wire structure (6) is located at the bottom of the inner and outer tube assembly (11), and the first end of the cable (2) is fixedly connected to the lead wire structure (6); the lead wire structure (6) includes a socket (61), and the telescopic table leg body (1) has an opening (111) corresponding to the socket (61), and the first end of the cable (2) is connected to the socket (61).
10. A height-adjustable desk, characterized in that, It includes a desktop and a lifting table leg mechanism as described in any one of claims 1-9, wherein the desktop is disposed on the lifting table leg mechanism.