Lifting table leg with built-in cable and electric lifting table

Abstract

The utility model provides a lifting table leg with a built-in cable and an electric lifting table, and belongs to the technical field of electric lifting tables, the lifting table leg comprises a leg tube, the leg tube is composed of a first tube body and a second tube body, the bottom end of the first tube body is provided with an input interface, and the top end of the second tube body is provided with an output interface; the height adjusting mechanism comprises a driving pipe, the driving pipe is located in the leg pipe, and the driving pipe is fixedly connected with the first pipe body; the protection pipe is located in the leg pipe, the protection pipe and the driving pipe are arranged side by side, and the protection pipe is fixedly connected with the second pipe body; the cable is arranged to be of a telescopic structure capable of being stretched or contracted, the cable is installed in the protection tube, and the two ends of the cable are electrically connected with the input interface and the output interface respectively; the lifting table leg has the advantages that the lifting table leg with the built-in cable hidden routing is provided, the cable exposure amount can be reduced, the built-in cable can be effectively protected through the protection pipe, and the cable can stretch out and draw back in the protection pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric lifting tables, and relates to a lifting table leg with an internal cable and an electric lifting table. Background Art

[0002] With the change of the modern office environment, electric lifting tables are becoming more and more popular among people. An electric lifting table allows users to adjust the height of the tabletop according to their needs, from sitting posture work to standing posture work, which helps to improve the working posture and work efficiency.

[0003] The cables of existing electric lifting tables usually adopt an external design, that is, all the cables are located outside the electric lifting table. One end of the cable is connected to the table body or the table leg, and the other end is used for plugging into a socket to obtain power. Such a design greatly increases the exposed length of the cable, resulting in a mess of cables, increasing the risk of tripping, and being difficult to keep clean.

[0004] Some existing design schemes have put forward the idea of hiding the cable inside the table leg. However, since the table leg needs to be telescopic, the cable hidden inside the table leg may be pulled due to the movement of the table leg, which may cause damage to the cable or shorten its service life. In addition, the protection of the cable inside the table leg is also a problem that needs to be solved, so there is still room for improvement. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a lifting table leg with an internal cable and an electric lifting table for the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A lifting table leg with an internal cable, comprising:

[0007] A leg tube, which is composed of a first tube body and a second tube body. The first tube body is slidably connected to the second tube body. An input interface is arranged at the bottom end of the first tube body, and an output interface is arranged at the top end of the second tube body;

[0008] A height adjustment mechanism, which includes a drive tube. The drive tube is located inside the leg tube and is fixedly connected to the first tube body;

[0009] A protection tube, which is located inside the leg tube. The protection tube is arranged side by side with the drive tube, and the protection tube is allowed to slide relative to the drive tube. The protection tube is fixedly connected to the second tube body;

[0010] A cable, the cable is arranged as a telescopic structure that can be stretched or contracted, the cable is installed inside the protection tube, both ends of the cable extend out from both ends of the protection tube respectively, and both ends of the cable are electrically connected to the input interface and the output interface respectively.

[0011] Preferably, the cable is arranged as a spiral spring structure.

[0012] Preferably, the protection tube has a clamping part, the clamping part clamps the driving tube and the two are allowed to slide relative to each other.

[0013] Preferably, the height adjustment mechanism further includes a motor, the motor is connected with a lead screw, the lead screw is in threaded connection with the driving tube, the top end of the protection tube is fixedly connected with the motor through a mounting seat, and the mounting seat is fixedly connected with the top end of the second tube body.

[0014] Preferably, one end of the protection tube has a limiting hole, and one end of the cable extends out from the limiting hole and is electrically connected to the output interface.

[0015] Preferably, one end of the protection tube is arranged as a groove part with a U-shaped cross section, a notch is formed at the edge of the groove part, and a limiting side cover is detachably connected to the groove part, and the limiting side cover seals the opening of the notch to form the limiting hole.

[0016] Preferably, it further includes a base bracket, the base bracket is connected to the bottom end of the first tube body, the bottom end of the driving tube is connected to the base bracket, the base bracket is provided with an isolation cavity, the isolation cavity has two openings, the lower port of the protection tube is arranged corresponding to one of the openings up and down, and the other opening is aligned with the input interface.

[0017] An electric lifting table is also proposed, including the lifting table leg with the built-in cable as described above.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. It provides a lifting table leg with a hidden cable routing inside, which can reduce the exposure amount of the cable, and can effectively protect the built-in cable through the protection tube, so that the telescopic process of the cable is inside the protection tube.

[0020] 2. The clamping part of the protection tube clamps the driving tube, the protection tube can be arranged side by side with the driving tube and connected transversely together, and at the same time, the clamping part can still slide relative to the driving tube on the basis of contacting the driving tube.

[0021] 3. First, assemble the motor and the protection tube together through the mounting base. Then, slidably connect the protection tube and the drive tube through the clamping part, so that the motor, the drive tube and the protection tube can be assembled into a modular component, and this relatively complex assembly work can be completed in the factory environment, thereby reducing the workload and complexity of on-site installation. During on-site installation, only need to connect the pre-assembled height adjustment mechanism module to the other parts of the table leg, which not only saves time but also reduces the possibility of errors caused by improper on-site operation.

[0022] 4. The base is connected to the bottom end of the first tube body by screws, which means that the base can be installed at the bottom of the drive tube and under the protection tube, and then installed at the bottom of the first tube body as the bottom of the overall structure, achieving the purpose of modular assembly. The base bracket is provided with an isolation cavity, and the isolation cavity can effectively achieve electrical isolation, thereby improving the safety of the entire table leg. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic internal structure diagram of the lifting table leg of the present invention.

[0024] Figure 2 It is a schematic connection diagram of the protection tube and the height adjustment mechanism of the present invention.

[0025] Figure 3 It is an exploded view of the structure of the lifting table leg of the present invention.

[0026] Figure 4 It is a schematic structure diagram of the protection tube of the present invention.

[0027] Figure 5 It is a schematic diagram of the lifting table leg of the present invention.

[0028] In the figure, 100, leg tube; 110, first tube body; 111, input interface; 120, second tube body; 121, output interface; 200, drive tube; 300, protection tube; 310, clamping part; 320, limiting hole; 330, groove part; 340, limiting side cover; 400, cable; 500, motor; 510, lead screw; 600, base bracket; 610, isolation cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following are specific embodiments of the present invention in combination with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0030] As Figures 1 - 5As shown in the figure, a lifting table leg with a built-in cable includes: a leg tube 100, which is composed of a first tube body 110 and a second tube body 120. The first tube body 110 is slidably connected to the second tube body 120. An input interface 111 is provided at the bottom end of the first tube body 110, and an output interface 121 is provided at the top end of the second tube body 120; a height adjustment mechanism, which includes a drive tube 200. The drive tube 200 is located inside the leg tube 100 and is fixedly connected to the first tube body 110; a protection tube 300, which is located inside the leg tube 100. The protection tube 300 is arranged side by side with the drive tube 200 and is allowed to slide relative to the drive tube 200. The protection tube 300 is fixedly connected to the second tube body 120; a cable 400, which is set as a telescopic structure that can be stretched or contracted. The cable 400 is installed inside the protection tube 300. The two ends of the cable 400 extend out from the two ends of the protection tube 300 respectively, and the two ends of the cable 400 are electrically connected to the input interface 111 and the output interface 121 respectively.

[0031] The first tube body 110 and the second tube body 120 form a telescopic leg tube 100 by means of a sliding connection. An input interface 111 is provided at the bottom end of the first tube body 110 for connecting to an external power supply; an output interface 121 is provided at the top end of the second tube body 120 for supplying power to the desktop device and the motor 500. The drive tube 200 is located inside the leg tube 100 and is fixedly connected to the first tube body 110. The extension and contraction of the table leg are realized by the movement of the drive tube 200. The cable 400 is designed as a telescopic structure and is installed inside the protection tube 300. The protection tube 300 is fixedly connected to the second tube body 120. Since the cable 400 is located inside the protection tube 300, the protection tube 300 can protect the cable 400, and the cable 400 is constrained inside the protection tube 300, making it more reliable during telescoping.

[0032] The input interface 111 and the output interface 121 are respectively located on the first tube body 110 and the second tube body 120. When the height of the table leg needs to be adjusted, the motor 500 moves the drive tube 200. At this time, the first tube body 110 remains fixed. The second tube body 120 extends or contracts relative to the first tube body 110. Since the two ends of the cable 400 are respectively connected to the input interface 111 and the output interface 121, the cable 400 extends or contracts as the second tube body 120 extends or contracts. It should be noted that during this process, the protection tube 300 moves together with the second tube body 120.

[0033] By installing the cable 400 inside the protective tube 300, the exposure of the cable 400 is effectively avoided, the possibility of damage to the cable 400 is reduced, the service life of the cable 400 is extended, and the whole table is kept clean and tidy. The retractable structure design of the cable 400 ensures that the cable 400 will not be pulled and damaged when the table legs are extended or retracted, guaranteeing the smoothness of the extension and retraction of the table legs. During actual use, an external power supply can be directly electrically connected to the input interface 111 at the bottom of the first tube body 110, and the motor 500 and other electronic components can be directly electrically connected to the upper end of the cable 400 or the output interface 121. That is, the built-in cable 400 in the table legs solves the problem of cable 400 management in traditional lifting table legs and also improves the overall performance and user experience of the product.

[0034] Based on the above-described embodiment, the cable 400 is arranged in a spiral spring structure. The cable 400 being in a spiral spring structure can freely extend or compress as the table legs extend and retract, effectively avoiding the pulling or damage of the cable 400 caused by the extension and retraction of the table legs. This structure of the cable 400 can well adapt to the change in the length of the cable 400 required during the extension and retraction of the table legs, ensuring that the cable 400 is always in good condition and extending the service life of the cable 400.

[0035] As Figures 2 - 4 shown, based on the above-described embodiment, the protective tube 300 has a clamping portion 310 that clamps the drive tube 200 and allows the two to slide relative to each other.

[0036] The clamping portion 310 of the protective tube 300 clamps the drive tube 200. The protective tube 300 can be arranged side by side with the drive tube 200 and transversely connected together. At the same time, on the basis of contacting the drive tube 200, the clamping portion 310 can also slide relative to it, enabling relative sliding between the protective tube 300 and the drive tube 200.

[0037] As Figures 1 - 4 shown, based on the above-described embodiment, the height adjustment mechanism further includes a motor 500. The motor 500 is connected to a lead screw 510. The lead screw 510 is threadedly connected to the drive tube 200. The top end of the protective tube 300 is fixedly connected to the motor 500 through a mounting seat, and the mounting seat is fixedly connected to the top end of the second tube body 120.

[0038] The motor 500 serves as a power source. When the motor 500 rotates, it drives the lead screw 510 to rotate. The drive tube 200 is actually similar to a nut structure. The lead screw 510 is threadedly connected to the drive tube 200. When the lead screw 510 rotates, it causes the drive tube 200 to move axially. The drive tube 200 is fixedly connected to the first tube body 110, and the movement of the drive tube 200 directly determines the extension and retraction of the table legs.

[0039] It should be emphasized here that during actual assembly, the motor 500 and the protection tube 300 are pre-assembled together through the mounting base, and then the protection tube 300 is slidably connected to the drive tube 200 through the clamping portion 310, so that the motor 500, the drive tube 200, and the protection tube 300 can be assembled into a modular component, and this relatively complex assembly work can be completed in a factory environment, thereby reducing the workload and complexity of on-site installation. During on-site installation, only the pre-assembled height adjustment mechanism module needs to be connected to other parts of the table leg, which not only saves time but also reduces the possibility of errors caused by improper on-site operation.

[0040] As Figures 3 - 4 shown, on the basis of the above embodiment, one end of the protection tube 300 has a limit hole 320, and one end of the cable 400 extends out from the limit hole 320 and is electrically connected to the output interface 121. The limit hole 320 is used to position the cable 400 to ensure that the end of the cable 400 does not move significantly during the telescopic process of the table leg, that is, the limit hole 320 can hold the part of the cable 400 located within the limit hole 320.

[0041] On the basis of the above embodiment, one end of the protection tube 300 is provided with a groove portion 330 whose cross-section is U-shaped. A notch is formed at the edge of the groove portion 330, and a limit side cover 340 is detachably connected to the groove portion 330. The limit side cover 340 seals the opening of the notch to form the limit hole 320.

[0042] The design of the groove portion 330 means that one end of the protection tube 300 has a side opening, which means that the upper end of the cable 400 can more easily extend out from the groove portion 330. There is a notch at the edge of the groove portion 330 for the cable 400 to pass through. The function of the limit side cover 340 is to seal the notch at the edge of the U-shaped groove portion 330 to form a complete limit hole 320, thereby restricting the position of the cable 400 to ensure that the cable 400 does not move too much or get damaged during the telescopic process of the table leg. And this design not only facilitates the extension of the end of the cable 400 from the protection tube 300, but also can well hold the end of the cable 400 to ensure a more stable and reliable connection between the cable 400 and the output interface 121, making the installation and maintenance of the cable 400 simple and fast.

[0043] As Figures 1 - 3 shown, on the basis of the above embodiment, a base bracket 600 is further included. The base bracket 600 is connected to the bottom end of the first tube body 110, and the bottom end of the drive tube 200 is connected to the base bracket 600. The base bracket 600 is provided with an isolation cavity 610. The isolation cavity 610 has two openings. The lower port of the protection tube 300 is arranged corresponding to one opening up and down, and the other opening is aligned with the input interface 111.

[0044] It should be noted here that the base is connected to the bottom end of the first pipe body 110 by screws, which means that the base can be installed at the bottom of the drive pipe 200 and below the protection pipe 300, and then installed at the bottom of the first pipe body 110 as the bottom of the overall structure, achieving the purpose of modular assembly.

[0045] The base bracket 600 is provided with an isolation cavity 610. This cavity has two openings. One opening is arranged corresponding to the lower port of the protection pipe 300 up and down for the end of the cable 400 to extend into the isolation cavity 610, and the other opening is aligned with the input interface 111 so that the cable 400 can extend out of the isolation cavity 610 and be electrically connected to the input interface 111. The isolation cavity 610 can effectively achieve electrical isolation, thereby improving the safety of the entire table leg.

[0046] As Figures 1 - 5 shown, on the basis of the above embodiment, an electric lifting table is also proposed, including a lifting table leg with an internal cable. It also includes a table frame, and at least two lifting table bodies are connected to the table frame. This lifting table is designed with an internal cable 400, reducing the exposed cable 400, reducing the tripping risk, and making the office environment cleaner and more beautiful.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0048] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In addition, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Claims

1. A lifting table leg with a built-in cable, characterized in that: include: A leg tube (100), the leg tube (100) being composed of a first tube body (110) and a second tube body (120), the first tube body (110) being slidably connected to the second tube body (120), the bottom end of the first tube body (110) being provided with an input interface (111), and the top end of the second tube body (120) being provided with an output interface (121); A height adjustment mechanism, the height adjustment mechanism comprising a drive tube (200), the drive tube (200) being located inside the leg tube (100), the drive tube (200) being fixedly connected to the first tube body (110); a protection tube (300), the protection tube (300) being located inside the leg tube (100), the protection tube (300) being arranged side by side with the driving tube (200), and the protection tube (300) being allowed to slide relative to the driving tube (200), and the protection tube (300) being fixedly connected to the second tube body (120); A cable (400), wherein the cable (400) is configured as a telescopic structure that can be stretched or contracted, the cable (400) is installed in the protective tube (300), two ends of the cable (400) respectively extend from two ends of the protective tube (300), and the two ends of the cable (400) are respectively electrically connected to the input interface (111) and the output interface (121).

2. A lifting table leg with built-in cable as claimed in claim 1, characterized in that: The cable (400) is configured as a helical spring-like structure.

3. The lifting table leg with built-in cable as claimed in claim 1, characterized in that: The protection tube (300) has an embracing portion (310), and the embracing portion (310) embraces the driving tube (200) and the two are allowed to slide relative to each other.

4. The lifting table leg with built-in cable as claimed in claim 1, characterized in that: The height adjustment mechanism further comprises a motor (500), the motor (500) being connected to a screw rod (510), the screw rod (510) being threadedly connected to the driving tube (200), the top end of the protection tube (300) being fixedly connected to the motor (500) via a mounting seat, and the mounting seat being fixedly connected to the top end of the second tube body (120).

5. The lifting table leg with built-in cable as claimed in claim 1, characterized in that: One end of the protection tube (300) is provided with a limiting hole (320), and one end of the cable (400) extends out of the limiting hole (320) and is electrically connected to the output interface (121).

6. A lifting table leg with built-in cable as claimed in claim 5, characterized in that: One end of the protection tube (300) is provided with a groove body portion (330) having a U-shaped cross section, a notch is provided at the edge of the groove body portion (330), and the groove body portion (330) is detachably connected to a limiting side cover (340), and the limiting side cover (340) seals the opening of the notch to form the limiting hole (320).

7. The lifting table leg with built-in cable as claimed in claim 1, characterized in that: The invention also comprises a base support (600), wherein the base support (600) is connected to the bottom end of the first tube body (110), the bottom end of the driving tube (200) is connected to the base support (600), the base support (600) is provided with an isolation cavity (610), the isolation cavity (610) has two cavity openings, the lower end of the protection tube (300) is arranged correspondingly to one of the cavity openings, and the other cavity opening is aligned with the input interface (111).

8. An electric lifting table, characterized in that: A lifting table leg with a built-in cable comprising any one of claims 1-7.

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