Lifting table

Abstract

The utility model discloses a lifting table which comprises a first sleeve, a second sleeve, a third sleeve, a screw rod and a driving piece, the second sleeve is inserted into the first sleeve, the bottom of the first sleeve is fixedly connected with table legs, the top of the second sleeve is fixedly connected with a table top, and the first sleeve is in sliding fit with the second sleeve; the third sleeve is located in the second sleeve and fixedly connected with the first sleeve, the screw is inserted into the third sleeve and is in threaded connection with the third sleeve, the top of the screw extends out of the third sleeve and is connected with the second sleeve, and the driving part used for driving the screw is installed on the second sleeve. A spring wire used for being connected with a power source is arranged in the second sleeve and located outside the third sleeve, a first socket is installed on the table leg or the first sleeve, and the two ends of the spring wire are connected with the first socket and the driving piece respectively. The spring wire and the sleeve do not interfere with each other, and the plug of the power supply is hidden below the table top, so that the working area of the lifting table is simpler.

Description

Technical Field

[0001] The utility model relates to the field of home furnishing, in particular to a lifting table. Background Art

[0002] The lifting table can meet the user's needs for support height adjustment for studying, working, and surfing the Internet. Since the lifting table needs to make corresponding adjustments according to the actual requirements of the user, but the electric lifting table requires a relatively long wire, this causes the wires to be pulled during the movement of the lifting table. Moreover, if the long wires are not properly placed, it is easy for people passing by to fall, and it is also easy to cause the wiring to loosen.

[0003] Prior art publication TW201825027A discloses a lift table with a hidden cable design. The table comprises a table top, a column, legs, a drive module, and a control module. The column connects the table top and legs and includes a telescopic tube structure. The drive module comprises a motor, a first screw, and a socket. The first screw and socket are disposed within the telescopic tube structure. The first screw is threaded onto one end of the socket and driven by the motor to rotate the first screw in or out of the socket to change the length of the telescopic tube structure. The control module comprises at least one circuit and a control interface. The circuit is disposed within the telescopic tube structure and spirally wound around the tube. It transmits control signals from the control interface to the motor, thereby driving the drive module. The circuit comprises at least a power supply line and a signal transmission line, and may include other cables as needed. The signal transmission line in the circuit is used to transmit the control signal sent by the control interface, while the power supply in the circuit now transmits electrical energy to drive the drive module.

[0004] In the prior art, the wiring system is arranged in a telescopic sleeve structure and spirally wound around the circumference of the sleeve. As the telescopic sleeve moves, the spiral wiring is expanded or tightened, and the diameter of the spiral wiring also decreases or increases. The wiring movement also causes shaking, which makes the telescopic sleeve structure prone to friction with the spiral wiring, and even the telescopic sleeve structure bites the spiral wiring. Utility Model Content

[0005] In order to solve the problem in the prior art that the coil spring wire easily interferes with the lifting structure through friction, the purpose of the utility model is to provide a lifting table that can effectively avoid interference between the spring wire and the table leg structure, thereby improving the stability and safety of the lifting table's movement.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a lifting table, including table legs for driving the desktop to rise and fall, the table legs including a first sleeve and a second sleeve, the second sleeve is inserted into the first sleeve, the bottom of the first sleeve is fixedly connected to the table leg, and the top of the second sleeve is fixedly connected to the desktop, the first sleeve and the second sleeve are slidably matched and driven by a driving assembly to move up and down relative to each other, the driving assembly including a third sleeve, a screw and a driving member; the third sleeve is located in the second sleeve, the third sleeve is fixedly connected to the first sleeve, the screw is inserted into the third sleeve, the screw is threadedly connected to the third sleeve, the top of the screw extends out of the third sleeve and is connected to the second sleeve, the driving member is installed on the second sleeve, the driving member is used to drive the screw to rotate, a spring wire for connecting to a power supply is provided in the second sleeve, the spring wire is located outside the third sleeve, a first socket is installed on the table leg or the first sleeve, and the two ends of the spring wire are respectively connected to the first socket and the driving member.

[0007] Preferably, a second socket is installed on the second sleeve, and the first socket and the second socket are connected via a spring wire; the driving member and the second socket are electrically connected via a separate connecting wire.

[0008] Preferably, the first socket is arranged at the bottom of the first sleeve or on the table leg, and the second socket is arranged at the top of the second sleeve.

[0009] Preferably, a connecting seat is fixed on the third sleeve, a threaded hole is provided on the connecting seat, a screw passes through the threaded hole of the connecting seat, the screw is threadedly connected to the connecting seat, a rotatable slider is installed on the screw, and the slider is slidably matched with the third sleeve.

[0010] Preferably, the spring wire includes a spiral portion and a straight portion, the spiral portion is located on the side of the third sleeve, and the two straight portions are respectively connected to the first socket and the second socket.

[0011] Preferably, the driving member includes a motor for driving the screw to rotate.

[0012] Preferably, the two sets of table legs are respectively arranged at the left and right ends of the table top, and the two second sleeves are fixedly connected to the table top through a crossbeam; the driving member also includes a transmission shaft, the two ends of the transmission shaft are respectively inserted into the two second sleeves and are connected to the screw in the second sleeve, the motor is installed on the crossbeam, and the motor is connected to the transmission shaft.

[0013] Preferably, the driving member also includes a transmission box, which includes a box body, a first gear and a second gear. The first gear is rotatably installed in the box body through a first bearing, and the second gear is rotatably installed in the box body through a second bearing. The first gear and the second gear are meshed, and the axis of the first gear and the axis of the second gear are arranged vertically; the box body is fixedly connected to the second sleeve; the top of the screw is inserted into the box body, and the screw rotates synchronously with the first gear; the transmission shaft is inserted into the box body, and the transmission shaft rotates synchronously with the second gear.

[0014] The beneficial effects of the technical solution of the present invention are as follows: the spring wire is located on the inner side of the second sleeve, thereby making the appearance of the lifting table more beautiful, and during the lifting process of the table legs, the spring wire can independently expand and contract, making the structure of the lifting table simpler; the above-mentioned spring wire is located on the side of the screw, and is fixedly connected to the third sleeve and the first sleeve. Since the spring wire is also in a taut state during the movement, there is no interference between the screw and the spring wire when the screw moves, thereby improving the stability of the lifting table; the above-mentioned first socket is located on the first sleeve, so that after the lifting table is connected to the power supply, the power plug is hidden under the desktop, making the working area of ​​the lifting table more concise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the lifting table;

[0016] Figure 2 This is a schematic diagram of the structure of the lifting table after removing the desktop;

[0017] Figure 3 Schematic diagram of the connection structure between the drive structure and the table legs Figure 1 ;

[0018] Figure 4 Schematic diagram of the connection structure between the drive structure and the table legs Figure 2 ;

[0019] Figure 5 Schematic diagram of the connection structure between the drive structure and the table legs Figure 3 ;

[0020] Figure 6 Schematic diagram of the drive structure inside the table leg Figure 1 ;

[0021] Figure 7 Schematic diagram of the drive structure inside the table leg Figure 2 ;

[0022] Figure 8 Schematic diagram of the structure of the first bracket.

[0023] Reference numerals: 1, table legs;

[0024] 2. Table legs; 21. First sleeve; 211. Mounting plate; 22. Second sleeve; 23. First bracket; 24. Crossbeam; 25. Second bracket; 26. Third bracket; 27. Fourth bracket;

[0025] 3. Desktop;

[0026] 4. Drive assembly; 41. Motor; 42. Reducer; 43. Drive shaft; 44. Transmission box; 441. Box body; 442. First gear; 443. Second gear; 444. Second bearing; 445. Second center hole; 446. First bearing; 45. Screw; 46. Third sleeve; 47. Connecting seat; 48. Slider; 49. Spring wire; 40. First socket; 400. Second socket. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present invention, 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 intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature. Example

[0032] like Figure 1-8 The illustrated lifting table includes a table leg for driving a table top 3 to rise and fall. The table leg includes a first sleeve 21 and a second sleeve 22. The second sleeve 22 is inserted into the first sleeve 21. The bottom of the first sleeve 21 is fixedly connected to the table leg 1, and the top of the second sleeve 22 is fixedly connected to the table top 3. The first sleeve 21 and the second sleeve 22 are slidably engaged and driven by a drive assembly 4 to move up and down relative to each other.

[0033] It also includes a driving assembly 4 for driving the first sleeve 21 and the second sleeve 22 to slide relative to each other, and the driving assembly 4 includes a third sleeve 46, a screw 45 and a driving member; the third sleeve 46 is located in the second sleeve 22, and the third sleeve 46 is fixedly connected to the first sleeve 21. The screw 45 is inserted into the third sleeve 46, and the screw 45 is threadedly connected to the third sleeve 46. The top of the screw 45 extends from the third sleeve 46 and is connected to the second sleeve 22. The driving member is installed on the second sleeve 22, and the driving member is used to drive the screw 45 to rotate. A spring wire 49 for connecting to a power supply is provided in the second sleeve 22, and the spring wire 49 is located outside the third sleeve 46. A first socket 40 is installed on the table leg 1 or the first sleeve 21, and the two ends of the spring wire 49 are respectively connected to the first socket 40 and the driving member.

[0034] With this arrangement, the spring wire is located on the inner side of the second sleeve, which makes the appearance of the lifting table more beautiful, and during the lifting process of the table leg 2, the spring wire can automatically expand and contract, making the structure of the lifting table simpler; the above-mentioned spring wire is located on the side of the screw, and is fixedly connected to the third sleeve and the first sleeve. Since the spring wire is also in a taut state during movement, there is no interference between the screw and the spring wire when the screw moves, which can improve the stability of the lifting table; the above-mentioned first socket is located on the first sleeve, so that after the lifting table is connected to the power supply, the power plug is hidden under the desktop, making the working area of ​​the lifting table more concise.

[0035] In this embodiment, Figures 3 to 6As shown, a second socket 400 is mounted on the second sleeve 22. The first socket 40 and the second socket 400 are connected via a spring wire 49. The driver and the second socket 400 are electrically connected via a separate connecting wire. The first socket is located at the bottom of the first sleeve, and the second socket is located at the top of the second sleeve. This arrangement simplifies the wiring of the lifting table. In other embodiments, the first socket can also be located on the table leg.

[0036] In this embodiment, Figure 4 and Figure 7 As shown, the connecting seat 47 is inserted into the third sleeve 46, and the connecting seat 47 and the third sleeve 46 are fixedly connected. A threaded hole is provided on the connecting seat 47, and the screw 45 passes through the threaded hole of the connecting seat 47 and is threadedly connected. A rotatable slider 48 is installed on the screw 45, and the slider 48 slides with the third sleeve 46.

[0037] In this embodiment, Figure 4 and Figure 6 As shown, the spring wire 49 includes a spiral portion and a straight portion. The spiral portion is located on the side of the third sleeve, and the two straight portions are respectively connected to the first socket 40 and the second socket 400. This arrangement can further prevent interference between the spring wire, the third sleeve, the second sleeve, and the screw, thereby improving the safety of the lifting shaft.

[0038] In this embodiment, Figure 2 As shown, the driving member includes a motor 41 for driving a screw 45 to rotate.

[0039] In this embodiment, Figure 1 and Figure 2 As shown, two sets of table legs 2 are located at the left and right ends of the table top 3. The two second sleeves 22 are fixedly connected to the table top 3 via a crossbeam 24. The drive member also includes a transmission shaft 43, the ends of which are inserted into the two second sleeves 22, respectively. The transmission shaft 43 is drivingly connected to the screw 45 in the second sleeves 22. The motor 41 is mounted on the crossbeam 24 and is drivingly connected to the transmission shaft 43. This arrangement enables the two sets of table legs 2 to move synchronously, ensuring the stability of the table top when raised or lowered.

[0040] More preferably, Figure 4 、 Figure 6 and Figure 7As shown, the driving member also includes a transmission box 44, which includes a box body 441, a first gear 442 and a second gear 443. The first gear 442 is rotatably installed in the box body 441 through a first bearing 446, and the second gear 443 is rotatably installed in the box body 441 through a second bearing 444. The first gear 442 and the second gear 443 are meshed, and the axis of the first gear 442 and the axis of the second gear 443 are vertically arranged; the box body 441 is fixedly connected to the second sleeve 22; the top of the screw rod 45 is inserted into the box body 441, and the screw rod 45 is connected to the first gear 442 and rotates synchronously; the transmission shaft 43 is inserted into the box body 441, and the transmission shaft 43 is connected to the second gear 443 and rotates synchronously. Specifically, the housing 441 is provided with a first through-hole, and the first gear 442 is provided with a first polygonal center hole. The top of the screw 45 matches the first center hole and is plugged into the first center hole. The housing 441 is provided with a second through-hole, and the second gear 443 is provided with a second polygonal center hole 445. The end of the transmission shaft 43 matches the second center hole 445 and is plugged into the second center hole 445. This arrangement facilitates the positioning and assembly of components through plug-in connection. The first and second gears are both half-shaft gears.

[0041] Further preferably, the box body 441 is inserted into the second sleeve 22, and the box body 441 is fixedly connected to the top of the second sleeve 22. Specifically, a third through hole extending laterally is provided on the second sleeve 22, and first positioning portions are protruded from both the left and right ends of the box body 441. The first positioning portions are provided with a fourth through hole, and the second center hole 445 of the second gear 443 is exposed through the fourth through hole; the first positioning portion of the box body 441 is inserted into the third through hole of the second sleeve 22, and the transmission shaft 43 passes through the second center hole 445 of the second gear 443 through the fourth through hole.

[0042] Further preferably, a third bracket 26 is fixed on the crossbeam 24, the motor 41 is mounted on the third bracket 26, a reducer 42 is mounted on the third bracket 26, the transmission shaft 43 is transmission-connected to the reducer, the motor 41 is mounted on the housing of the reducer 42, and the output shaft of the motor 41 is transmission-connected to the reducer.

[0043] In this embodiment, a first bracket 23 is fixed on the second sleeve 22, and the crossbeam 24 is fixedly connected to the first bracket 23. Further preferably, Figure 4 and Figure 8As shown, the first bracket 23 is fixed to the top of the second sleeve 22. Specifically, a plurality of positioning holes 232 and a plurality of fifth through holes 231 are provided on the first bracket 23, a second positioning portion is protruded from the top of the box body 441, and a threaded hole is provided on the top of the box body 441; when the first bracket 23 is fixed to the second sleeve 22, the second positioning portion on the top of the box body 441 is inserted into the positioning hole 232 on the first bracket 23, and the screw passes through the fifth through hole 231 on the first bracket 23 and is threadedly connected with the threaded hole on the box body 441, thereby fixing the first bracket 23 to the top of the second sleeve 22. Further preferably, as Figure 2 、 Figure 4 and Figure 8 As shown, one end of the first bracket 23 is bent into a hook-shaped connecting portion 233, through which the crossbeam 24 passes. The crossbeam 24 and the connecting portion 233 are fixedly connected by bolts. After the first bracket 23 is fixed to the second sleeve 22, the crossbeam 24 is tightly abutted against the second sleeve 22. This arrangement facilitates the installation and positioning of the crossbeam, and increases the connection strength between the various components, making the structure more compact.

[0044] In this embodiment, Figure 2 As shown, a fourth bracket 27 is fixed to the crossbeam 24, and multiple fourth brackets 27 are arranged horizontally on the crossbeam 24; a second bracket 25 extending in the front-to-back direction is fixed to the top of the second sleeve, and the table top 3 can be fixed to the second bracket 25 and the fourth bracket 27 by bolts. This arrangement provides more connection points for the table top 3 and higher connection strength.

[0045] In this embodiment, Figures 1 to 5 As shown, the table leg 1 is fixedly connected to the bottom of the first sleeve 21, and the first socket 40 is fixed to the table leg 1. The first socket 40 is located on the rear side of the bottom of the table leg 2. This arrangement allows the lifting table to hide the electrical wires behind the table leg 2, thereby preventing the wires from interfering with the user.

[0046] In this embodiment, Figure 4 、 Figure 6 and Figure 8 As shown, a mounting plate 211 is fixed inside the first sleeve 21, the second sleeve 22 is located above the mounting plate 211, the bottom of the third sleeve 46 is fixedly connected to the mounting plate 211, a sixth through hole is provided on the mounting plate 211, and the end of the spiral line passes through the sixth through hole and is connected to the first socket 40.

[0047] When using the lifting table, insert the plug connected to the power supply into the first socket located on the rear side of the first sleeve, and the second socket and the motor are electrically connected through a connecting line. After the motor is started, the motor drives the transmission shaft to rotate, and then the transmission shaft drives the second gear to rotate, and then the second gear drives the first gear to rotate, and then the first gear drives the screw to rotate. When the screw rotates, it drives the second sleeve to move through the box, and the second sleeve drives the desktop to move; wherein, by controlling the positive and negative output of the motor, the lifting of the desktop is controlled.

[0048] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A lifting table, comprising a table leg (2) for driving a table top (3) to lift and lower, the table leg (2) comprising a first sleeve (21) and a second sleeve (22), the second sleeve (22) being inserted into the first sleeve (21), the bottom of the first sleeve (21) being fixedly connected to the table leg (1), the top of the second sleeve (22) being fixedly connected to the table top (3), the first sleeve (21) and the second sleeve (22) being slidably matched and driven by a driving assembly (4) to move up and down relative to each other, characterized in that: The driving assembly (4) includes a third sleeve (46), a screw (45) and a driving member; the third sleeve (46) is located in the second sleeve (22), the third sleeve (46) is fixedly connected to the first sleeve (21), the screw (45) is inserted into the third sleeve (46), the screw (45) is threadedly connected to the third sleeve (46), the top of the screw (45) extends from the third sleeve (46) and is connected to the second sleeve (22), the driving member is installed on the second sleeve (22), the driving member is used to drive the screw (45) to rotate, a spring wire (49) for connecting to a power supply is provided in the second sleeve (22), the spring wire (49) is located outside the third sleeve (46), a first socket (40) is installed on the table leg (1) or the first sleeve (21), and two ends of the spring wire (49) are respectively connected to the first socket (40) and the driving member.

2. The lifting table according to claim 1, characterized in that: A second socket (400) is mounted on the second sleeve (22); the first socket (40) and the second socket (400) are connected via a spring wire (49); and the driving member and the second socket (400) are electrically connected via a separate connecting wire.

3. The lifting table according to claim 2, characterized in that: The first socket (40) is arranged at the bottom of the first sleeve (21) or on the table leg (1), and the second socket (400) is arranged at the top of the second sleeve (22).

4. The lifting table according to claim 1, characterized in that: A connecting seat (47) is fixedly provided on the third sleeve (46), a threaded hole is provided on the connecting seat (47), a screw rod (45) passes through the threaded hole of the connecting seat (47), the screw rod (45) is threadedly connected to the connecting seat (47), a rotatable slider (48) is installed on the screw rod (45), and the slider (48) is slidably matched with the third sleeve (46).

5. The lifting table according to claim 2, characterized in that: The spring wire (49) comprises a spiral portion and a straight portion, wherein the spiral portion is located on the side of the third sleeve (46), and the two straight portions are respectively connected to the first socket (40) and the second socket (400).

6. The lifting table according to claim 1, characterized in that: The driving member includes a motor (41) for driving the screw (45) to rotate.

7. The lifting table according to claim 6, characterized in that: Two sets of table legs (2) are respectively arranged at the left and right ends of the table top (3), and the two second sleeves (22) are fixedly connected to the table top (3) through the crossbeam (24); the driving member also includes a transmission shaft (43), the two ends of the transmission shaft (43) are respectively inserted into the two second sleeves (22) and are transmission-connected to the screw (45) in the second sleeves (22); the motor (41) is installed on the crossbeam (24), and the motor (41) is transmission-connected to the transmission shaft (43).

8. The lifting table according to claim 7, characterized in that: The driving member further includes a transmission box (44), the transmission box (44) including a box body (441), a first gear (442) and a second gear (443), the first gear (442) being rotatably mounted in the box body (441) via a first bearing (446), the second gear (443) being rotatably mounted in the box body (441) via a second bearing (444), the first gear (442) and the second gear (443) being meshed, the axis of the first gear (442) and the axis of the second gear (443) being arranged perpendicularly; the box body (441) is fixedly connected to the second sleeve (22); The top of the screw (45) is inserted into the box (441), and the screw (45) and the first gear (442) rotate synchronously; the transmission shaft (43) is inserted into the box (441), and the transmission shaft (43) and the second gear (443) rotate synchronously.

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