CN112617406A

CN112617406A - Folding table with adjustable height

Info

Publication number: CN112617406A
Application number: CN202011556146.6A
Authority: CN
Inventors: 殷勇
Original assignee: Xuancheng Chenyi Industrial Design Co ltd
Current assignee: Xuancheng Chenyi Industrial Design Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-09

Abstract

The invention relates to the technical field of office furniture, in particular to a folding table with adjustable height, which comprises: the base, big table elevating system, big table, little table elevating system, little table, big table elevating system includes: the outer lifting rod, the inner lifting rod, the fine adjusting column and the coarse adjusting column; outside lifter quantity is two, and the inboard in the middle part of outside lifter rotates with the outside in the middle part of inboard lifter to be connected, and the outside lifter includes: the large table plate lifting mechanism comprises a first inner rod and a first locking device, wherein a rack portion I is arranged at one inward end of the first inner rod, the first locking device is fixedly arranged on the outer side of one outer lifting rod, and the two outer lifting rods are connected through a fine adjusting column.

Description

Folding table with adjustable height

Technical Field

The invention relates to the field of office furniture, in particular to a height-adjustable folding table.

Background

With the development of society, office occupational diseases are on the rise. Conventional desks are either of a constant height or can be custom made in height, but are difficult to change once delivered for use; office staff can work on the desk top at the same height for a long time, and occupational diseases of the waist, the back, the neck or the legs are easy to occur. Many workers are plagued by these occupational illnesses caused by sedentary sitting, and most of all, the popularity of standing office or standing-seat interactive office work has begun abroad. The office has a plurality of advantages, particularly can solve the occurrence of lumbar cervical spondylosis, has the efficacy of losing weight, and can improve the working efficiency by 10-30% through research reports.

Due to the fact that the height of the desktop is not proper due to the fact that two office modes of standing and sitting are required to be switched, a related product for lifting the desktop appears in the market; at present, office staff work with desktop computers, and the office habit of the desktop computers is that a display and a mouse key are placed on different planes, and the height of the display is higher than that of the mouse key, so that the user can be prevented from looking down at the display. The lifting office table adopting the double-layer table platform has the advantages that the table platform cannot be adjusted, so that the storage space and the transportation cost of the lifting office table are increased, and improvement is urgently needed.

Disclosure of Invention

Therefore, the present invention has been made in view of the above problems, and the present invention provides a design of a folding table with adjustable height, which reduces the storage space and transportation cost in a folded state, and can adjust the height of a double-layered table top in an unfolded state so as to be suitable for office workers with different heights. The invention realizes the aim through the following technical scheme:

an adjustable height folding table comprising: the table comprises a base, a large table plate lifting mechanism, a large table plate, a small table plate lifting mechanism and a small table plate; the base is placed horizontally, the base includes: the energy storage device comprises an accommodating groove, an energy storage spring and a base sliding groove;

big table elevating system includes: the outer lifting rod, the inner lifting rod, the fine adjusting column and the coarse adjusting column; outside lifter quantity is two, and the inboard in the middle part of outside lifter rotates with the outside at the middle part of inboard lifter to be connected, the outside lifter includes: the inner side of the outer side lifting rod is provided with a rack part I, the locking device I is fixedly arranged on the outer side of one outer side lifting rod, the two outer side lifting rods are connected through a fine adjusting column, two adjusting gears I fixedly arranged on the shaft of the fine adjusting column are respectively meshed with the rack parts I of the two outer side lifting rods, the number of the inner rods I of one outer side lifting rod is two, the two inner rods I are symmetrically arranged along the center of the meshed adjusting gears I, the outer side of the outer side lifting rod on the right side is rotatably provided with an adjusting knob, one end of the shaft of the adjusting knob is fixedly connected with one end of the shaft of the fine adjusting column, and the extending length of the two outer side lifting rods can be adjusted by rotating the adjusting knob;

inboard lifter quantity is two, and the outside at the middle part of inboard lifter rotates with the inboard at the middle part of outside lifter to be connected, inboard lifter includes: a second inner rod and a second locking device, wherein a second rack part is arranged at one inward end of the second inner rod, the second locking device is fixedly arranged at the inner side of one inner lifting rod, the two inner lifting rods are connected through a coarse adjusting column, two adjusting gears II fixedly arranged on the rough adjusting column shaft are respectively meshed with the rack parts II of the two inner side lifting rods, the number of the inner rods II of one inner side lifting rod is two, the two inner rods II are arranged along the centers of the meshed adjusting gears II in a centrosymmetric manner, the inner shaft of the coarse adjusting column is hollow, the fine adjusting column is rotatably arranged in the coarse adjusting column in a penetrating mode, the central shaft of the two adjusting gears II is also provided with a hollow part with the diameter of the fine adjusting column so that the fine adjusting column can penetrate through the two adjusting gears II, the extending lengths of the two inner lifting rods can be adjusted by adjusting the rotation of the coarse adjusting column relative to the inner lifting rods;

the large table plate comprises: a large table plate folding chute, a linkage block and a large table plate chute; the tablet includes: the fixed pulley, the small table board control knob, the rigid rope and the small table board folding chute are arranged, the lower ends of the two outer lifting rods are rotatably arranged on the base through the upright post, the two inner lifting rods are rotatably arranged on the sliding block which is arranged in the base chute in a sliding manner, the upper ends of the two inner lifting rods are rotatably arranged on the large table board through the upright post, and the upper ends of the two outer lifting rods are rotatably arranged on the sliding block which is arranged in the large table board folding chute in a sliding manner;

little table elevating system includes: the middle part of the outer straight rod is rotatably connected with the middle part of the inner straight rod, the lower end of the outer straight rod is rotatably arranged on a sliding block which is arranged in a sliding groove of a large table plate in a sliding manner, the upper end of the outer straight rod is rotatably arranged on a small table plate, the lower end of the inner straight rod is rotatably arranged on the large table plate, the upper end of the inner straight rod is rotatably arranged on the sliding block which is arranged in a folding sliding groove of the small table plate in a sliding manner, and the linkage block is fixedly connected with the folding sliding groove of the large table plate and the sliding block in the sliding groove of the large table plate;

two ends of the rigid rope are respectively fixedly connected to two sliding blocks in the small table plate folding sliding grooves at two ends of the small table plate, the rigid rope is arranged on two fixed pulleys at two ends in front of the small table plate, the middle point of the rigid rope is fixedly arranged on a small table plate control knob which is rotatably arranged in the middle of the front of the small table plate, an energy storage spring is further arranged on an upright post which is fixedly arranged on the base and is rotatably connected with the lower end of the outer lifting rod, and the other end of the energy storage spring is connected with the sliding blocks in the sliding grooves of the base; still set up the holding tank that is used for placing thick regulation post under fold condition on the base.

A switch is further arranged between the base and the small table board, the switch can lock the folded state of the table board and prevent the table board from being automatically unfolded, and the inclined states with different heights of the front end and the rear end of the large table board can be achieved by adjusting the fine adjusting column and the coarse adjusting column.

The invention has the following beneficial effects:

1. the large table plate lifting mechanism adopts a mode that the fine adjusting column and the coarse adjusting column are rotatably sleeved, so that a user can respectively and simultaneously adjust the lengths of the two outer lifting rods and the two inner lifting rods, the adjusting steps of the user are simplified, the adjusting freedom degree of the large table plate lifting mechanism is increased, and the heights of the front end and the rear end of the large table plate can be respectively adjusted, so that the table top can be inclined in some times.

2. The linkage block is arranged, so that the height of the small table plate can be adjusted, the height of the large table plate can be lifted, and the adjusting efficiency is improved.

3. The large table plate lifting mechanism simultaneously adopts two modes of hinge folding and length stretching of the rod, and solves the problems that the length of the rod cannot be increased by using the hinge folding mode of the rod only and the storage space cannot be reduced by using the length stretching mode of the rod only.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the large table lifting mechanism of the present invention.

Fig. 3 is a schematic view of the internal structure and the disassembled structure of the large table lifting mechanism of the present invention.

Fig. 4 is a detailed structure diagram of the small table board lifting mechanism of the invention.

Description of the drawings:

1. a base; 2. a large table plate lifting mechanism; 3. a large table plate; 4. a small table plate lifting mechanism; 5. a small table plate; 11. accommodating grooves; 12. an energy storage spring; 13. a base chute; 21. an outer lifting rod; 22. an inside lifter; 23. fine adjustment columns; 24. a coarse conditioning column; 211. an inner rod I; 212. a first locking device; 2111. a first rack portion; 221. an inner rod II; 222. a second locking device; 2211. a second rack portion; 231. adjusting a first gear; 232. adjusting a knob; 241. a second adjusting gear; 31. a large table plate folding chute; 32. a linkage block; 33. a large table board chute; 41. an outer straight rod; 42. an inner straight rod; 51. a fixed pulley; 52. a small table control knob; 53. a rigid cord; 54. the little table folding spout.

Detailed Description

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those embodiments can be easily implemented by those having ordinary skill in the art to which the present invention pertains. However, the present invention may be embodied in many different forms and is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, components not connected to the present invention will be omitted from the drawings.

As shown in fig. 1, an adjustable height folding table comprises: the table comprises a base 1, a large table plate lifting mechanism 2, a large table plate 3, a small table plate lifting mechanism 4 and a small table plate 5; base 1 level is placed, base 1 includes: the energy storage device comprises an accommodating groove 11, an energy storage spring 12 and a base sliding groove 13;

as shown in fig. 1, 2, and 3, the large table lifting mechanism 2 includes: an outer lifting rod 21, an inner lifting rod 22, a fine adjusting column 23 and a coarse adjusting column 24; outside lifter 21 quantity is two, and the outside in the middle part of outside lifter 21 and the outside in the middle part of inboard lifter 22 is rotated and is connected, outside lifter 21 includes: the inner rod I211 and the locking device I212 are respectively provided with a rack part I2111 at one inward end of the inner rod I211, the locking device I212 is fixedly arranged at the outer side of one outer lifting rod 21, the two outer lifting rods 21 are connected through a fine adjusting column 23, two adjusting gears I231 fixedly arranged on the shaft of the fine adjusting column 23 are respectively meshed with the rack parts I2111 of the two outer lifting rods 21, the number of the inner rods I211 of one outer lifting rod 21 is two, the two inner rods I211 are symmetrically arranged along the center of the meshed adjusting gears I231, an adjusting knob 232 is rotatably arranged at the outer side of the right outer lifting rod 21, one end of the shaft of the adjusting knob 232 is fixedly connected with one end of the shaft of the fine adjusting column 23, the extending length of the two outer lifting rods 21 can be adjusted by rotating the adjusting knob 232, and the structure of the locking device I212 is not unique, only the fine adjustment column 23 can be locked to be not rotated relative to the two outer lifting rods 21 when needed;

inboard lifter 22 quantity is two, and the outside in the middle part of inboard lifter 22 rotates with the inboard in the middle part of outside lifter 21 to be connected, inboard lifter 22 includes: the inner rod II 221 and the locking device II 222 are arranged, a rack part II 2211 is arranged at one inward end of the inner rod II 221, the locking device II 222 is fixedly arranged on the inner side of one inner lifting rod 22, the two inner lifting rods 22 are connected through a coarse adjusting column 24, two adjusting gears II 241 fixedly arranged on the shaft of the coarse adjusting column 24 are respectively meshed with the rack parts II 2211 of the two inner lifting rods 22, the number of the inner rods II 221 of one inner lifting rod 22 is two, the two inner rods II 221 are symmetrically arranged along the center of the two adjusting gears 241 meshed with the two inner rods II 221, the inner shaft of the coarse adjusting column 24 is hollow, the fine adjusting column 23 is rotatably arranged in the coarse adjusting column 24 in a penetrating mode, the hollow size of the diameter of the fine adjusting column 23 is further formed in the central shaft of the two adjusting gears 241, so that the fine adjusting column 23 can penetrate through the two adjusting gears 241, and the length of the two inner lifting rods 22 extending out can be adjusted by adjusting the rotation of the coarse adjusting column 24 relative to the The second locking device 222 has a non-unique structure, and only needs to lock the coarse adjustment column 24 from rotating relative to the two inner lifting rods 22 when needed;

as shown in fig. 1 and 4, the large table 3 includes: a large table folding chute 31, a linkage block 32 and a large table chute 33; the small table plate 5 comprises: a fixed pulley 51, a small table board control knob 52, a rigid rope 53 and a small table board folding chute 54;

as shown in fig. 1, 2, 3 and 4, the lower ends of the two outer lifting rods 21 are rotatably arranged on the base 1 through the upright posts, the two inner lifting rods 22 are rotatably arranged on the sliding blocks slidably arranged in the base sliding grooves 13, the upper ends of the two inner lifting rods 22 are rotatably arranged on the large table plate 3 through the upright posts, and the upper ends of the two outer lifting rods 21 are rotatably arranged on the sliding blocks slidably arranged in the large table plate folding sliding grooves 31;

as shown in fig. 1 and 4, the small table board lifting mechanism 4 includes an outer straight rod 41 and an inner straight rod 42, wherein the middle of the outer straight rod 41 is rotatably connected with the middle of the inner straight rod 42, the lower end of the outer straight rod 41 is rotatably arranged on a sliding block which is slidably arranged in a large table board sliding groove 33, the upper end of the outer straight rod 41 is rotatably arranged on the small table board 5, the lower end of the inner straight rod 42 is rotatably arranged on the large table board 3, the upper end of the inner straight rod 42 is rotatably arranged on a sliding block which is slidably arranged in a small table board folding sliding groove 54, and the linkage block 32 is fixedly connected with the sliding blocks in the large table board folding sliding groove 31 and the large table board sliding groove 33;

as shown in fig. 1 and 4, two ends of the rigid rope 53 are respectively fixedly connected to two sliders in the small table folding chutes 54 at two ends of the small table 5, the rigid rope 53 is arranged on two fixed pulleys 51 at two ends in front of the small table 5, a midpoint of the rigid rope 53 is fixedly arranged on a small table control knob 52 rotatably arranged at the middle part in front of the small table 5, the small table control knob 52 has a unique structure but needs a self-locking function, and the small table control knob 52 is released after being rotated, so that the small table control knob 52 can be self-locked without being reversed;

as shown in fig. 1, an energy storage spring 12 is further disposed on the upright post fixedly disposed on the base 1 and rotatably connected to the lower end of the outer lifting rod 21, and the other end of the energy storage spring 12 is connected to the slider in the base sliding groove 13; the base 1 is further provided with an accommodating groove 11 for accommodating the coarse adjustment column 24 in a folded state.

Preferably, as an embodiment, a switch (not shown) is further provided between the base 1 and the small desk board 5, and the switch can lock the folded state of the present invention without automatically unfolding the same;

preferably, as an embodiment, the inclined state of the large table 3 in which the front and rear ends are different in height may be achieved by adjusting the fine adjustment column 23 and the coarse adjustment column 24.

The working principle of the invention is as follows:

firstly, the switch is turned on, the large table 3 and the small table 5 are popped out to a certain height due to the action of the energy storage spring 12, then the small table control knob 52 is rotated to enable the rigid rope 53 to be shortened due to winding on the small table control knob 52, so that the inner straight rod 42 is pulled to enable the inclination angle of the inner straight rod to be larger, the height of the small table 5 is adjusted, the large table 3 can be lifted to a certain height due to the existence of the linkage block 32, the fine adjustment column 23 and the coarse adjustment column 24 are adjusted to control the lifting of the large table lifting mechanism 2, and finally the first locking device 212 and the second locking device 222 are locked.

Claims

1. An adjustable height folding table comprising: base (1), big table elevating system (2), big table (3), little table elevating system (4), little table (5), base (1) includes: the energy storage device comprises an accommodating groove (11), an energy storage spring (12) and a base sliding groove (13); the method is characterized in that: big table elevating system (2) includes: an outer lifting rod (21), an inner lifting rod (22), a fine adjusting column (23) and a coarse adjusting column (24); outside lifter (21) quantity is two, and outside lifter (21) is rotated with the middle part of inboard lifter (22) and is connected, and outside lifter (21) includes: interior pole one (211), locking device one (212), interior pole one (211) is inside one end is provided with rack portion one (2111), locking device one (212) is fixed to be set up in the outside of one of them outside lifter (21), two outside lifters (21) link to each other through carefully adjusting post (23), the both ends of carefully adjusting post (23) are provided with adjusting gear one (231) respectively, and mesh mutually with rack portion one (2111) of two outside lifters (21), the outside rotation of right side outside lifter (21) is provided with adjust knob (232), inboard lifter (22) quantity is two, inboard lifter (22) include: interior pole two (221), locking device two (222), interior pole two (221) inward one end is provided with rack portion two (2211), locking device two (222) are fixed to be set up in the inboard of one of them inboard lifter (22), two inboard lifters (22) link to each other through thick regulation post (24), the both ends of thick regulation post (24) are equipped with adjusting gear two (241) respectively, and mesh mutually with two rack portion two (2211), big table (3) include: a large table plate folding chute (31), a linkage block (32) and a large table plate chute (33); the tablet (5) comprises: fixed pulley (51), little table control knob (52), rigidity rope (53), little table folding chute (54), little table elevating system (4) include: an outer straight rod (41) and an inner straight rod (42), wherein the outer straight rod (41) is rotatably connected with the middle part of the inner straight rod (42), the base sliding groove (13), the large table board sliding groove (33), the large table board folding sliding groove (31) and the small table board folding sliding groove (54) are respectively internally provided with a sliding block, the lower end of the outer straight rod (41) is rotatably arranged on the sliding block which is arranged in the large table board sliding groove (33) in a sliding way, the upper end of the outer straight rod (41) is rotatably arranged on the small table board (5), the lower end of the inner straight rod (42) is rotatably arranged on the large table board (3), the upper end of the inner straight rod (42) is rotatably arranged on the sliding block which is arranged in the small table board folding sliding groove (54), a linkage block (32) is fixedly connected on the sliding block between the large table board folding sliding groove (31) and the large table board sliding groove (33), the two ends of a rigid rope (53) are respectively and fixedly connected on the two sliding blocks in the small table board, and the rigid rope (53) is arranged on two fixed pulleys (51) at two ends in front of the small table plate (5), the midpoint of the rigid rope (53) is fixedly arranged on a small table plate control knob (52) which is rotatably arranged at the middle part in front of the small table plate (5), the two sides of the base (1) are provided with energy storage springs (12), and one end of the base (1) is provided with an accommodating groove (11).

2. An adjustable height folding table as claimed in claim 1, wherein: the number of the first inner rods (211) of one outer lifting rod (21) is two, the two first inner rods (211) are arranged in a central symmetry mode along the centers of the first adjusting gears (231) meshed with the first inner rods, the number of the second inner rods (221) of one inner lifting rod (22) is two, and the two second inner rods (221) are arranged in a central symmetry mode along the centers of the second adjusting gears (241) meshed with the second inner rods.

3. An adjustable height folding table as claimed in claim 1, wherein: the inner shaft of the coarse adjusting column (24) is hollow, the fine adjusting column (23) is rotatably arranged in the coarse adjusting column (24) in a penetrating mode, and through holes which are the same as the diameter of the fine adjusting column (23) in size are formed in the centers of the two adjusting gears (241).

4. An adjustable height folding table as claimed in claim 1, wherein: the lower extreme of two outside lifter (21) passes through the stand and rotates the setting on base (1), and two inboard lifter (22) rotate the setting and slide on the slider that sets up in base spout (13), and the upper end of two inboard lifter (22) is rotated the setting through the stand and is on big table (3), and the upper end of two outside lifter (21) is rotated the setting and is slided on the slider that sets up in big table folding spout (31).

5. An adjustable height folding table as claimed in claim 1, wherein: a switch is arranged between the base (1) and the small table plate (5).