CN215837634U

CN215837634U - Lifting-adjustable table framework

Info

Publication number: CN215837634U
Application number: CN202122297353.0U
Authority: CN
Inventors: 丁健; 赵阳; 朱兵; 邹建林
Original assignee: Changzhou Dinghao Precision Technology Co ltd
Current assignee: Changzhou Dinghao Precision Technology Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-02-18
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to a desk skeleton of adjustable lift especially relates to desk skeleton field, insert the support column of establishing in the stay tube including stay tube and slip, still include elevating system and actuating mechanism, elevating system includes the rack, gear and connecting rod, the rack sets up on the support column lateral wall along support column slip direction, the connecting rod rotates to be connected in the stay tube, the length direction of connecting rod is perpendicular with the slip direction of stay tube, the gear interval is provided with two at least on the connecting rod, two gears all with connecting rod coaxial coupling, and with rack toothing, actuating mechanism drive connecting rod rotates. The problem of stability not enough when desk skeleton goes up and down has been improved to this application for need not to remove the article on the desktop when going up and down, be convenient for adjust.

Description

Lifting-adjustable table framework

Technical Field

The application relates to the field of table frameworks, in particular to a lifting-adjustable table framework.

Background

The table is an indispensable part of home life as common furniture. With the improvement of the use requirements of people, the simple table is not enough to meet the requirements of family life, more and more families can select the table with special functions of lifting, folding and the like, the table framework is used as an important component of the table, and the special functions of the table are often required to be finished by depending on the table framework.

Application number 201420786946.0's chinese utility model patent document discloses a telescopic desk, including first table leg, the second table leg, the desktop, the drinking cup seat, layer board and adjust knob, first table leg is connected in the desktop, first table leg inserts the second table leg with sliding, adjust knob establishes on the second table leg, adjust knob and second table leg fixed connection, first table leg bottom is equipped with a plurality of cavity and perforates, adjust knob's bolt can twist and fix, during the use, twist adjust knob to the outside, make first table leg slide regulation from top to bottom, when needing to fix, it can to twist the inboard with adjust knob.

In view of the above-mentioned related art, the inventor has considered that there is a drawback in that the first leg is slidably inserted into the second leg and there is a gap between the first leg and the second leg, and the lifting is not stable enough.

SUMMERY OF THE UTILITY MODEL

In order to improve the not enough problem of stability when the desk skeleton goes up and down, this application provides the desk skeleton of adjustable lift.

The application provides a desk skeleton of adjustable lift adopts following technical scheme:

the utility model provides an adjustable lift's desk skeleton, includes the stay tube and slides and inserts and establish support column in the stay tube still includes elevating system and actuating mechanism, elevating system includes rack, gear and connecting rod, the rack is followed support column slip direction sets up on the support column lateral wall, the connecting rod rotates to be connected in the stay tube, the length direction of connecting rod with the slip direction of stay tube is perpendicular, the gear is in the interval is provided with two at least on the connecting rod, two the gear all with connecting rod coaxial coupling, and with rack toothing, the actuating mechanism drive the connecting rod rotates.

Through adopting above-mentioned technical scheme, drive arrangement drive connecting rod is rotatory to it is together rotatory along with the connecting rod to drive the gear, and two gears cooperate jointly to support the rack both sides and press, make rack both sides atress balanced, thereby drive rack and support column that can be stable when making the gear rotatory together go up and down, the degree of rocking of table leg when having weakened the lift, need not to remove the article on the desktop when making the lift, the regulation of being convenient for.

Optionally, the driving mechanism includes a transmission assembly, a motor and a voltage conversion switch, the motor is disposed on the inner wall of the supporting tube, the voltage conversion switch is disposed on the outer side wall of the supporting tube, the motor is electrically connected with the voltage conversion switch, and the motor can drive the connecting rod to rotate through the transmission assembly.

By adopting the technical scheme, the motor output shaft rotates to drive the transmission assembly to work, and the transmission assembly works to drive the connecting rod to rotate so as to drive the supporting column to lift; and voltage change over switch can change the polarity of motor both ends voltage, makes the direction of rotation of motor output shaft carry out the forward and reverse switching to the direction of rotation that makes transmission assembly drive connecting rod carries out the forward and reverse switching, realizes the lift adjustment of support column.

Optionally, the transmission assembly is a bevel gear pair, and the motor is a self-locking motor.

Through the technical scheme, the rotating direction of the motor can be changed through the bevel gear pair, the structural design is more compact, the output shaft can be locked by the self-locking motor, the supporting column can be stabilized at the required height through the driving mechanism and the lifting mechanism, the preliminary limiting effect is achieved, and the clamping is convenient to further limit.

Optionally, a storage battery is arranged in the support tube, and the storage battery, the voltage conversion switch and the motor are electrically connected in sequence.

Through the technical scheme, the storage battery can supply power to the motor, so that the motor does not need an external power supply when being adjusted to lift, and the motor is not limited by whether the external power supply exists in a use place or not when being adjusted to lift, and is more convenient to use.

Optionally, two inner side walls opposite to the supporting tube are respectively provided with a sliding groove along the length direction of the supporting tube, two side walls corresponding to the sliding grooves of the supporting column are respectively provided with a sliding block, and each sliding block is respectively connected with one sliding groove in a sliding manner.

Through the technical scheme, the supporting column is further limited by the matching of the sliding block and the sliding groove, so that the degree of freedom of the supporting column during sliding in the supporting tube is reduced, the supporting column can slide in the supporting tube more stably, and the lifting of the supporting column is more stable.

Optionally, a plurality of clamping grooves are formed in the side wall of the supporting column at intervals along the length direction of the supporting column, a clamping piece is movably arranged on the side wall of the supporting tube, the clamping piece corresponds to a path formed by sliding of the clamping grooves, and the clamping piece can be clamped with any one of the clamping grooves.

Through the technical scheme, the supporting column can be fixed through the mutual clamping of the clamping piece and the clamping groove when being lifted to the required height, the rotating acting force applied to the output shaft of the self-locking motor by the supporting column under the action of gravity is reduced, the service life of the self-locking motor is prolonged, the supporting column is fixed at the required height, and the stability of the supporting column in the supporting tube is improved.

Optionally, the two ends of the connecting rod are rotatably connected with the inner side wall of the supporting tube by bearings.

Through above-mentioned technical scheme, stability when having promoted the connecting rod and rotating, and then make the position relatively fixed of rack for the gear can carry out more stable supporting tightly to the rack, makes the lift of support column more steady.

Optionally, soundproof cotton is arranged on the outer wall of the supporting pipe.

Through above-mentioned technical scheme, make the noise that elevating system and actuating mechanism during operation produced be difficult to pass to external environment, reduced the pollution of noise, let the user have better use and experience.

In summary, the present application includes at least one of the following beneficial technical effects:

the rack is meshed with the gear, the support column is inserted into the support tube in a sliding mode, the support column can stably slide up and down in the support tube, the driving device drives the connecting rod to rotate, the connecting rod rotates to drive the gear to rotate together, the two gears can press the rack tightly, the rack can be stably driven to lift when the gear rotates, the shaking degree of table legs during lifting is weakened, articles on a table top do not need to be removed during lifting, and adjustment is facilitated;

2. the inner side wall of the supporting tube is provided with a sliding groove and the supporting column is provided with a sliding block, and the sliding block is in sliding connection with the sliding groove, so that the degree of freedom of the supporting column during sliding in the supporting tube is reduced, and the supporting column is limited, so that the supporting column can slide in the supporting tube more stably, and the lifting of the supporting column is more stable;

3. set up a plurality of draw-in grooves along support column length direction interval on the support column lateral wall, the activity sets up joint spare on the support tube lateral wall for the support column can pass through the mutual joint of joint spare with the draw-in groove when going up and down to required height, has reduced the support column and has applyed the pivoted effort to the self-locking motor output shaft because of the action of gravity, has prolonged self-locking motor's life, fixes the support column at required height simultaneously, has improved the stability of support column in the stay tube.

Drawings

Fig. 1 is an overall structure diagram of a first view angle of a table frame capable of adjusting lifting in an embodiment of the application.

Fig. 2 is an exploded view of a second perspective of an adjustable lift table frame according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural view of a driving mechanism part of the table frame of the adjustable lifting table in fig. 1.

Reference numerals: 1. supporting a tube; 11. a pipe body; 111. a chute; 12. a base body; 2. a support pillar; 21. a card slot; 22. a clamping piece; 221. a sleeve; 222. an inner core; 23. a slider; 3. a lifting mechanism; 31. a rack; 32. a gear; 33. a connecting rod; 4. a drive mechanism; 41. a transmission assembly; 411. a bevel gear pair; 4111. a drive bevel gear; 4112. a driven bevel gear; 42. a motor; 421. a self-locking motor; 43. a voltage transfer switch; 431. a switch body; 4311. a sliding gear; 432. a slide switch; 5. a bearing; 6. and (4) a storage battery.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses desk skeleton of adjustable lift.

Referring to fig. 1 and 2, the adjustable lifting table frame includes a support column 2, a support tube 1, a lifting mechanism 3 and a driving mechanism 4, the support tube 1 includes a base 12 and a tube 11 welded on the base 12, the support column 2 is inserted into the support tube 1 in a sliding manner, two opposite inner side walls of the tube 11 are provided with a chute 111 along the length direction of the tube 11, two corresponding side walls of the support column 2 and the chute 111 are provided with sliders 23 in a bonding manner, and each slider 23 is respectively connected with one chute 111 in a sliding manner. The outer wall of the pipe body 11 is coated with soundproof cotton, which is not shown in the figure. The lifting mechanism 3 is arranged in the pipe body 11, and the driving mechanism 4 is used for driving the lifting mechanism 3 to lift.

Referring to fig. 2, the lifting mechanism 3 includes a connecting rod 33, a gear 32 and a rack 31, the rack 31 is welded on the side wall of the supporting column 2 along the sliding direction of the supporting column 2, in this embodiment, two racks are provided, and the two racks are disposed on two sides of the same side wall of the supporting column at intervals. The connecting rod 33 is arranged in the tube body 11, the length direction of the connecting rod 33 is perpendicular to the sliding direction of the tube body 11, two ends of the connecting rod 33 are rotatably connected with two inner side walls of the tube body 11 by adopting the bearings 5, the inner ring of each bearing 5 is clamped on the connecting rod 33, and the outer ring of each bearing 5 is welded with the inner wall of the support tube 1, so that the connecting rod 33 can more stably rotate in the support tube 1; gear 32 sets up to two in this embodiment, and two gears 32 interval sleeves establish on connecting rod 33, and two gears 32 all with the coaxial setting of connecting rod 33, all mesh with rack 31 moreover, and gear 32 also can set up three or four in other embodiments, and all is of value to the smooth slip of support column 2 all can.

Referring to fig. 1, 2 and 3, the driving mechanism 4 includes a motor 42, a voltage conversion switch 43 and a transmission assembly 41, the motor 42 adopts a self-locking motor 421, the self-locking motor 421 is welded on the inner wall of the pipe 11, and when the self-locking motor 421 stops rotating, an output shaft of the self-locking motor 421 is locked. The voltage change-over switch 43 comprises a switch body 431 and a sliding switch 432, the switch body 431 is welded on the outer side wall of the tube body 11, the sliding switch 432 is slidably clamped on the switch body 431, the switch body 431 is provided with three sliding gears 4311, the sliding switch 432 can be switched among the three sliding gears 4311, and when the sliding switch 432 is located at the middle gear of the sliding gears 4311, the self-locking motor 421 is in a stop state; when the slide switch 432 is located at the shift positions on both sides of the slide shift position 4311, the self-locking motor 421 is in the working state, but the rotation direction of the output shaft of the self-locking motor 421 is opposite. The storage battery 6 is arranged in the seat body 12, and the self-locking motor 421, the voltage change-over switch 43 and the storage battery 6 are electrically connected in sequence. In this embodiment, the transmission assembly 41 adopts a bevel gear pair 411, the bevel gear pair 411 includes a driving bevel gear 4111 and a driven bevel gear 4112, the driving bevel gear 4111 is coaxially sleeved on an output shaft of the self-locking motor 421, the driven bevel gear 4112 is coaxially sleeved on the connecting rod 33, the driving bevel gear 4111 is engaged with the driven bevel gear 4112, and in other embodiments, the transmission assembly 41 can also adopt a worm-and-gear pair, a bevel gear pair, etc.

Referring to fig. 1 and 2, a plurality of slots 21 are formed in the side wall of the support column 2 at intervals along the length direction of the support column 2, a clamping member 22 is arranged on the side wall of the tube body 11, the clamping member 22 includes a sleeve 221 and an inner core 222 slidably sleeved in the sleeve 221, the sleeve 221 is arranged on the side wall of the tube body 11 in a penetrating manner, the inner core 222 corresponds to a path formed by sliding the plurality of slots 21, the inner core 222 can be clamped with any slot 21, when the output shaft of the self-locking motor 421 is self-locked, the inner core 222 is pressed down, the inner core 222 is inserted into the slot 21 along the sleeve 221, the support column 2 is clamped and limited, when the height of the support column 2 needs to be adjusted again, the inner core 222 is drawn out of the slot 21, and then the self-locking motor 421 is opened.

The implementation principle of the desk framework capable of adjusting lifting in the embodiment of the application is as follows: when the height of the table needs to be lifted, the inner core 222 is pulled out from the clamping groove 21, the self-locking motor 421 is opened, the output shaft of the self-locking motor 421 starts to rotate, the output shaft rotates to drive the driving bevel gear 4111 to rotate, the driving bevel gear 4111 drives the driven bevel gear 4112 to rotate, the driven bevel gear 4112 further drives the connecting rod 33 to rotate, the connecting rod 33 rotates to enable the two gears 32 to start to rotate, the two gears 32 rotate to drive the rack 31 to move upwards or downwards, so that the lifting of the supporting column 2 is realized, when the height of the supporting column 2 needs to be fixed, the self-locking motor 421 stops rotating, the output shaft is locked by the self-locking motor 421, so that the driving mechanism 4 and the lifting mechanism 3 are locked, the supporting column 2 is temporarily stabilized at the required height, and then the inner core 222 is pressed to be tightly clamped with the clamping groove 21, so that the supporting column 2 can be fixed at the required height; when the height of the supporting column 2 needs to be adjusted again, the inner core 222 is firstly pulled out from the clamping groove 21, then the sliding switch 432 is pushed to change the polarity of the voltage at the two ends of the self-locking motor 421, the rotation direction of the self-locking motor 421 is changed, and the supporting column 2 can be adjusted to ascend and descend again.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Desk skeleton of adjustable lift includes stay tube (1) and slides and inserts and establish support column (2) in stay tube (1), its characterized in that: still include elevating system (3) and actuating mechanism (4), elevating system (3) include rack (31), gear (32) and connecting rod (33), rack (31) are followed support column (2) slip direction sets up on the support column (2) lateral wall, connecting rod (33) rotate to be connected in stay tube (1), the length direction of connecting rod (33) with the slip direction of stay tube (1) is perpendicular, gear (32) are in the interval is provided with two at least, two on connecting rod (33) gear (32) all with connecting rod (33) coaxial coupling, and with rack (31) meshing, actuating mechanism (4) drive connecting rod (33) rotate.

2. An adjustable lift table frame as defined in claim 1 wherein: actuating mechanism (4) are including drive assembly (41), motor (42) and voltage change over switch (43), motor (42) set up on stay tube (1) inner wall, voltage change over switch (43) set up on stay tube (1) lateral wall, motor (42) with voltage change over switch (43) electricity is connected, motor (42) can pass through drive assembly (41) drives connecting rod (33) rotate.

3. An adjustable lift table frame as defined in claim 2 wherein: the transmission assembly (41) is arranged as a bevel gear pair (411), and the motor (42) adopts a self-locking motor (421).

4. An adjustable lift table frame as defined in claim 3 wherein: a plurality of draw-in grooves (21) have been seted up along support column (2) length direction interval on support column (2) lateral wall, the activity is provided with joint spare (22) on support tube (1) lateral wall, joint spare (22) with the route that draw-in groove (21) slip formed is corresponding, joint spare (22) can with arbitrary draw-in groove (21) joint.

5. An adjustable lift table frame as defined in claim 1 wherein: a storage battery (6) is arranged in the supporting tube (1), and the storage battery (6), the voltage change-over switch (43) and the motor (42) are electrically connected in sequence.

6. An adjustable lift table frame as defined in claim 1 wherein: the supporting structure is characterized in that sliding grooves (111) are formed in two opposite inner side walls of the supporting tube (1) along the length direction of the supporting tube (1), sliding blocks (23) are arranged on two side walls, corresponding to the sliding grooves (111), of the supporting column (2), and each sliding block (23) is connected with one sliding groove (111) in a sliding mode.

7. An adjustable lift table frame as defined in claim 1 wherein: two ends of the connecting rod (33) are rotatably connected with the inner side wall of the supporting tube (1) by adopting bearings (5).

8. An adjustable lift table frame as defined in claim 1 wherein: and sound insulation cotton is arranged on the outer wall of the supporting tube (1).