A liftable table

Abstract

The present invention discloses a liftable table, comprising: a table body, comprising a desktop, table legs supporting the desktop, and a lifting mechanism located between the desktop and the table legs, wherein the lifting mechanism comprises a fixed part and a rotating part, wherein the fixed part is fixedly connected to one of the desktop and the table legs, and the rotating part is rotationally connected to the desktop and the other of the table legs, and a screw part and a screw sleeve part that are screwed together are arranged between the fixed part and the rotating part; a driving mechanism, which is used to drive the rotating part to rotate to lift the desktop or generate a tendency to lift the desktop, and has a horizontal transmission rod, the transmission rod is provided with a first angle gear, and the rotating part is correspondingly provided with a second angle gear; a braking mechanism, which has a movable operating rod, and the operating rod has a braking part, and the braking part abuts against the transmission rod or indirectly abuts against the transmission rod to fix the transmission rod. A liftable table of the present invention can improve stability and avoid accidental changes in height.

Description

Technical Field

[0001] The invention relates to a table structure, in particular to a liftable table. Background Art

[0002] A height-adjustable table is a table that can be adjusted to suit different height requirements.

[0003] However, the existing lifting tables have poor stability and the height of the lifting tables is prone to change. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a liftable table that can improve stability and avoid accidental changes in height.

[0005] A liftable table according to an embodiment of the first aspect of the present invention comprises: a table body, comprising a table top, table legs supporting the table top, and a lifting mechanism located between the table top and the table legs, the lifting mechanism comprising a fixed part and a rotating part, the fixed part is fixedly connected to the table top and one of the table legs, the rotating part is rotationally connected to the table top and the other of the table legs, a screw part and a screw sleeve part that are screwed together are arranged between the fixed part and the rotating part; a driving mechanism is used to drive the rotating part to rotate so as to lift the table top or generate a tendency to lift the table top, and has a horizontal transmission rod, the transmission rod is provided with a first angle gear, and the rotating part is correspondingly provided with a second angle gear; a braking mechanism has a movable operating rod, the operating rod has a braking part, and the braking part abuts or indirectly abuts against the transmission rod to fix the transmission rod.

[0006] A liftable table according to an embodiment of the present invention has at least the following beneficial effects:

[0007] Firstly, the present invention arranges a fixed part and a rotating part so that a screw portion and a sleeve portion are arranged between the fixed part and the rotating part. Therefore, when the rotating part rotates, the screwing length of the screw portion and the sleeve portion changes, thereby causing the fixed part and the rotating part to rise and fall relative to each other, and finally changing the height of the table top to realize the lifting function of the table.

[0008] Secondly, the present invention sets a transmission rod, a first corner gear and a second corner gear, thereby realizing transmission and arranging the driving mechanism in a horizontal direction, effectively utilizing the bottom space of the desktop, and at the same time reducing interference with human legs for easy use.

[0009] Finally, and most importantly, the present invention provides a braking mechanism with an operating rod and a braking member. On the one hand, the operating position of the braking mechanism can be guided to the edge of the table top by utilizing the operating rod. On the other hand, the transmission rod is prevented from rotating by direct or indirect contact between the braking member and the transmission rod, thereby preventing the rotating member from rotating. Therefore, the table top can be prevented from accidentally rising or falling, and in particular, the table top can be prevented from accidentally falling, thereby improving the stability of the liftable table.

[0010] According to a liftable table described in the first aspect of the present invention, the cross-section of the brake member is L-shaped, and the brake member includes a top plate portion and a side plate portion which are connected to each other, the top plate portion is located at the top of the transmission rod, the side plate portion is located at the horizontal side of the transmission rod, and the side plate portion is located in the radial direction of the transmission rod.

[0011] Advantageously, the present invention can increase the contact area and braking force by providing the brake member with a top sheet portion and a side sheet portion, and on the other hand, by utilizing the top sheet portion, the top sheet portion is located between the transmission rod and the table top, thereby accurately positioning the brake member, simplifying installation, and facilitating subsequent maintenance and replacement.

[0012] According to the liftable table described in the first aspect of the present invention, the driving mechanism further comprises a synchronous belt, and the synchronous belt is used to drive the transmission rod to rotate.

[0013] The benefit is that: the present invention sets a synchronous belt to drive the transmission rod to rotate. On the one hand, the transmission is efficient and the position of the power source can be changed to facilitate the layout. On the other hand, the synchronous belt is light in weight and reduces the weight of the table.

[0014] According to the liftable table described in the first aspect of the present invention, the first corner gear is provided with a corner tooth portion and an outer tooth portion, and the synchronous belt is provided with an inner tooth portion meshing with the outer tooth portion.

[0015] Advantageously, the present invention provides the first angle gear with an angle tooth portion and an external tooth portion, thereby providing an integrated gear that meets both the angle transmission requirements and the requirements of synchronous belt transmission, reduces the number of parts, reduces the installation locations, and simplifies the structure.

[0016] According to the liftable table described in the first aspect of the present invention, the synchronous belt is located between the braking member and the transmission rod, and the braking member can abut against the synchronous belt.

[0017] Advantageously, the present invention realizes braking by abutting the synchronous belt with the brake member, and can utilize the elasticity of the synchronous belt to maintain the extrusion between the brake member and the transmission rod, so the invention is durable, not prone to slipping, and not prone to failure.

[0018] According to the liftable table described in the first aspect of the present invention, the driving mechanism further comprises a spring, and the spring is connected to the synchronous belt to drive the transmission rod to rotate.

[0019] Advantageously, the present invention arranges a spring and utilizes the spring to drive the synchronous belt, and does not need to use a cylinder or a motor. The table does not need to be connected to an external power source, is suitable for a variety of occasions, and has strong adaptability.

[0020] According to the liftable table described in the first aspect of the present invention, the spring is a coil spring.

[0021] Advantageously, the present invention reduces occupied space by making the spring a coil spring, thereby making the structure of the table simple, and in particular, when the spring is arranged on the table leg, the table leg is prevented from becoming thicker.

[0022] According to the liftable table described in the first aspect of the present invention, a plurality of springs are provided.

[0023] Advantageously, the present invention can meet different load-bearing requirements by providing a plurality of springs. In addition, when the springs are coil springs, the number of springs can be conveniently increased or decreased within a limited space, thereby meeting the load-bearing requirements without increasing the space occupied by the table.

[0024] According to the liftable table described in the first aspect of the present invention, two of the table legs and the lifting mechanism are provided.

[0025] Advantageously, the present invention provides two table legs and two lifting mechanisms, so that the distance between each table leg and the table top can be adjusted to prevent the table top from tilting.

[0026] According to the liftable table described in the first aspect of the present invention, two transmission rods are provided, and a synchronization rod connecting the two transmission rods is also included, or one transmission rod is provided, and one first angle gear is provided at both ends of the transmission rod.

[0027] Advantageously, the present invention provides a synchronous rod or an extended transmission rod so that the lifting mechanisms at the two table legs can operate synchronously, thereby simplifying the operation of lifting the table top and facilitating use.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1This is a schematic structural diagram of a liftable table according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the structure of a liftable table viewed from above is shown;

[0032] Figure 3 for Figure 2 A schematic diagram of an enlarged cross-sectional view at point A;

[0033] Figure 4 for Figure 2 Schematic diagram of the enlarged cross-sectional view at point B in the figure.

[0034] Figure numerals: 100 - table top, 110 - table legs, 120 - lifting mechanism, 130 - rotating part, 140 - transmission rod, 150 - first angle gear, 160 - second angle gear, 170 - operating rod, 180 - brake part, 190 - top sheet, 200 - side sheet, 210 - synchronous belt, 220 - external tooth part, 230 - spring, 240 - synchronous rod. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] A liftable table according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0040] Reference Figure 1 and Figure 2 , the present invention provides an embodiment of a liftable table.

[0041] Specifically, the liftable table includes: a table body including a table top 100 , table legs 110 supporting the table top 100 , and a lifting mechanism 120 located between the table top 100 and the table legs 110 .

[0042] Among them, the lifting mechanism 120 includes a fixed part and a rotating part 130, the fixed part is fixedly connected to one of the table top 100 and the table leg 110, and the rotating part 130 is rotationally connected to the other of the table top 100 and the table leg 110, and a screw part and a screw sleeve part that are screwed together are arranged between the fixed part and the rotating part 130.

[0043] Reference Figure 3 In this embodiment, the rotating member 130 is disposed on the table top 100 or a part fixed together with the table top 100, and the fixing member is disposed on the table leg 110, specifically, in the pipe of the table leg 110. At the same time, the rotating member 130 is provided with a screw portion, and the fixing member is provided with a screw sleeve portion, but it is theoretically feasible to provide the rotating member 130 on the table leg 110 and the fixing member on the table top 100, and it is not difficult to interchange the positions of the screw portion and the screw sleeve portion.

[0044] This embodiment shows a more preferred implementation scheme, which is easy to manufacture and reduces the difficulty of industrial transformation.

[0045] In this embodiment, a driving mechanism is further provided, and the driving mechanism is used to drive the rotating member 130 to rotate so as to lift the desktop 100 or to generate a tendency to lift the desktop 100 .

[0046] The driving mechanism has a horizontal transmission rod 140 , the transmission rod 140 is provided with a first angle gear 150 , and the rotating member 130 is correspondingly provided with a second angle gear 160 .

[0047] In some preferred embodiments, the driving mechanism may further include a synchronous belt 210 , and the synchronous belt 210 is used to drive the transmission rod 140 to rotate.

[0048] It can be understood that in this embodiment, a synchronous belt 210 is provided to drive the transmission rod 140 to rotate. On the one hand, the transmission is efficient and the position of the power source can be changed to facilitate the layout. On the other hand, the synchronous belt 210 is light in weight and reduces the weight of the table.

[0049] In some preferred embodiments, the first angle gear 150 may be provided with an angle tooth portion and an outer tooth portion 220 , and the synchronous belt 210 may be provided with an inner tooth portion meshing with the outer tooth portion 220 .

[0050] It can be understood that in this embodiment, by making the first corner gear 150 have a corner tooth portion and an external tooth portion 220, a gear is integrally provided, which can meet the needs of both angle transmission and transmission with the synchronous belt 210, reduce the number of parts, reduce the installation position, and simplify the structure.

[0051] Reference Figure 4 In some preferred embodiments, the driving mechanism may further include a spring 230 , and the spring 230 is connected to the synchronous belt 210 to drive the transmission rod 140 to rotate.

[0052] It can be understood that in this embodiment, the spring 230 is provided to drive the synchronous belt 210, and there is no need to use a cylinder or a motor. The table does not need to be connected to an external power source, and is suitable for a variety of occasions and has strong adaptability.

[0053] In some preferred embodiments, the spring 230 may be a coil spring.

[0054] It can be understood that in this embodiment, the spring 230 is a coil spring, which reduces the occupied space and makes the structure of the table simple. In particular, when the spring 230 is arranged on the table leg 110, the table leg 110 is prevented from becoming thicker.

[0055] In some preferred embodiments, a plurality of springs 230 may be provided.

[0056] It can be understood that this embodiment can meet different load-bearing requirements by providing a plurality of springs 230. In addition, when the spring 230 is a coil spring, the number of springs 230 can be easily increased or decreased within a limited space, thereby meeting the load-bearing requirements without increasing the space occupied by the table.

[0057] It is feasible that the component for installing the spring 230 can fix the synchronous belt 210 to avoid lifting failure, and the synchronous belt 210 may not be a complete ring shape, which is convenient for replacement.

[0058] In some preferred embodiments, two table legs 110 and two lifting mechanisms 120 may be provided.

[0059] It can be understood that in this embodiment, by providing two table legs 110 and two lifting mechanisms 120 , the distance between each table leg 110 and the desktop 100 can be adjusted to prevent the desktop 100 from tilting.

[0060] In some preferred embodiments, two transmission rods 140 may be provided, and a synchronization rod 240 may be included to connect the two transmission rods 140 . Alternatively, one transmission rod 140 may be provided, and a first angle gear 150 may be provided at both ends of the transmission rod 140 .

[0061] It can be understood that in this embodiment, by providing a synchronization rod 240 or extending the transmission rod 140, the lifting mechanisms 120 at the two table legs 110 can be operated synchronously, thereby simplifying the operation of the lifting table top 100 and facilitating use.

[0062] Reference Figure 1 , Figure 2 and Figure 3 This embodiment further provides a braking mechanism, which has a movable operating rod 170 , and the operating rod 170 has a braking member 180 , and the braking member 180 abuts against or indirectly abuts against the transmission rod 140 to fix the transmission rod 140 .

[0063] In some preferred embodiments, a lever is provided at one end of the operating rod 170 away from the brake member 180, and the lever drives the operating rod 170 to move through an eccentric structure or other means, so that the brake member 180 approaches or moves away from the transmission rod 140, thereby achieving braking or releasing the brake.

[0064] In some preferred embodiments, the synchronous belt 210 may be located between the brake member 180 and the transmission rod 140 , and the brake member 180 may abut against the synchronous belt 210 .

[0065] It can be understood that in this embodiment, braking is achieved by the brake member 180 abutting against the synchronous belt 210. The elasticity of the synchronous belt 210 can be used to maintain the compression between the brake member 180 and the transmission rod 140, so that the brake member 180 is durable, not prone to slipping, and not prone to failure.

[0066] In some preferred embodiments, the cross-section of the brake member 180 can be L-shaped, and the brake member 180 includes a top sheet portion 190 and a side sheet portion 200 that are connected to each other, the top sheet portion 190 is located on the top of the transmission rod 140, the side sheet portion 200 is located on the horizontal side of the transmission rod 140, and the side sheet portion 200 is located in the radial direction of the transmission rod 140.

[0067] It can be understood that in this embodiment, by providing the brake member 180 with a top sheet portion 190 and a side sheet portion 200, on the one hand, the contact area can be increased and the braking force can be increased; on the other hand, by utilizing the top sheet portion 190, the top sheet portion 190 is located between the transmission rod 140 and the table top 100, thereby accurately positioning the brake member 180, simplifying installation, and facilitating subsequent maintenance and replacement.

[0068] In summary, this embodiment achieves the following excellent effects:

[0069] First, in this embodiment, a fixed part and a rotating part 130 are arranged so that a screw portion and a sleeve portion are arranged between the fixed part and the rotating part 130. Therefore, when the rotating part 130 rotates, the screwing length of the screw portion and the sleeve portion changes, thereby causing the fixed part and the rotating part 130 to rise and fall relative to each other, and finally, changing the height of the table top 100 to realize the lifting function of the table.

[0070] Secondly, this embodiment sets the transmission rod 140, the first corner gear 150 and the second corner gear 160, thereby realizing transmission and arranging the driving mechanism in the horizontal direction, effectively utilizing the bottom space of the desktop 100, and at the same time reducing interference with human legs for easy use.

[0071] Finally, and most importantly, in this embodiment, a braking mechanism is provided so that the braking mechanism has an operating rod 170 and a braking member 180. On the one hand, the operating position of the braking mechanism can be guided to the edge of the desktop 100 by utilizing the operating rod 170. On the other hand, the transmission rod 140 is prevented from rotating by direct or indirect contact with the braking member 180, thereby preventing the rotating member 130 from rotating. Therefore, the desktop 100 can be prevented from accidentally rising or falling, and in particular, the desktop 100 can be prevented from accidentally falling, thereby improving the stability of the table.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0073] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A liftable table, characterized in that: include: A table body, comprising a table top (100), table legs (110) supporting the table top (100), and a lifting mechanism (120) located between the table top (100) and the table legs (110), wherein the lifting mechanism (120) comprises a fixed part and a rotating part (130), wherein the fixed part is fixedly connected to one of the table top (100) and the table legs (110), and the rotating part (130) is rotationally connected to the other of the table top (100) and the table legs (110), and a screw part and a screw sleeve part that are screwed together are arranged between the fixed part and the rotating part (130); a driving mechanism, used for driving the rotating member (130) to rotate so as to lift the table top (100) or to generate a tendency to lift the table top (100), comprising a horizontal transmission rod (140), wherein the transmission rod (140) is provided with a first corner gear (150), and the rotating member (130) is correspondingly provided with a second corner gear (160); A braking mechanism, comprising a movable operating rod (170), wherein the operating rod (170) has a braking member (180), wherein the braking member (180) abuts against or indirectly abuts against the transmission rod (140) to fix the transmission rod (140); The braking member (180) has an L-shaped cross section, and comprises a top sheet portion (190) and a side sheet portion (200) connected to each other, wherein the top sheet portion (190) is located at the top of the transmission rod (140), the side sheet portion (200) is located at a horizontal side of the transmission rod (140), and the side sheet portion (200) is located in a radial direction of the transmission rod (140); The driving mechanism further comprises a synchronous belt (210), wherein the synchronous belt (210) is used to drive the transmission rod (140) to rotate.

2. A liftable table according to claim 1, characterized in that: The first angle gear (150) is provided with an angle tooth portion and an external tooth portion (220), and the synchronous belt (210) is provided with an internal tooth portion meshing with the external tooth portion (220).

3. A liftable table according to claim 2, characterized in that: The synchronous belt (210) is located between the braking component (180) and the transmission rod (140), and the braking component (180) can abut against the synchronous belt (210).

4. A liftable table according to any one of claims 1 to 3, characterized in that: The driving mechanism further comprises a spring (230), wherein the spring (230) is connected to the synchronous belt (210) to drive the transmission rod (140) to rotate.

5. A liftable table according to claim 4, characterized in that: The spring (230) is a coil spring.

6. The liftable table according to claim 4, characterized in that: A plurality of springs (230) are provided.

7. The liftable table according to claim 1, characterized in that: Two of the table legs (110) and the lifting mechanism (120) are provided.

8. The liftable table according to claim 7, characterized in that: Two transmission rods (140) are provided, and a synchronization rod (240) is also included to connect the two transmission rods (140); or, one transmission rod (140) is provided, and one first angle gear (150) is provided at each end of the transmission rod (140).

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