CN110101235B

CN110101235B - Table and chair lifting device easy to adjust height

Info

Publication number: CN110101235B
Application number: CN201910278372.3A
Authority: CN
Inventors: 林高丽
Original assignee: Wenzhou Polytechnic
Current assignee: Suzhou Maike Kaien Precision Manufacturing Co ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2022-03-29
Anticipated expiration: 2039-04-09
Also published as: CN110101235A

Abstract

The invention relates to a table and chair lifting device with easy height adjustment, which comprises a lifting mechanism, wherein the lifting mechanism comprises a fixed column, a sliding block, a limiting block, a first rotating rod, a second rotating rod, a first motor, a base, a fixed rod and a seat, the bottom of the seat is provided with a limiting device for limiting the rotation of the seat, the limiting device comprises a fixed shaft arranged in the seat, the fixed shaft is sleeved with an L-shaped rod, one end, facing the fixed rod, of the L-shaped rod is integrally connected with a clamping block, a circle of surrounding groove is annularly arranged on the fixed rod, the fixed rod is provided with clamping grooves which are communicated with the surrounding groove and are arranged at intervals along the circumferential length of the surrounding groove, and after the L-shaped rod rotates around the fixed shaft, the L-shaped rod drives the clamping block to move towards the fixed rod until the clamping block is clamped into the clamping groove, so that the rotation of the seat is limited. The invention has the advantages that the height of the chair can be adjusted under the action of applying weight to the chair without up-down multiple adjustment.

Description

Table and chair lifting device easy to adjust height

Technical Field

The invention relates to the technical field of teaching office appliances, in particular to a table and chair lifting device with height easy to adjust.

Background

At present, when a learning table, a computer table, a desk, a learning chair or other tables and chairs are used, the height of the table or chair needs to be adjusted sometimes according to the sitting height of a user, particularly, the height of a student changes rapidly along with the growth of the age, so that the height of the desk or chair needs to be adjusted continuously in the process of using the table or chair, the eyesight of the student is protected conveniently, meanwhile, in the using process of the table and chair, people with different heights have different requirements on the height of the table or chair, and the height of the table or chair needs to be adjusted when the desk or chair is used.

The existing one-piece desk and chair used in a dining room or an office does not have the function of adjusting the height, and the lifting device of the chair in the currently used office does not have the lifting function when people sit on the chair, so that the chair can be lifted up only by leaving the chair, and the height required by the people can be reached only by continuously adjusting the height up and down, which is very troublesome and needs to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a table and chair lifting device with easy height adjustment, which has the advantages that the height can be adjusted under the action of applying weight to a chair without up-down multiple times of adjustment.

In order to achieve the purpose, the invention provides the following technical scheme: a table and chair lifting device easy to adjust height comprises a lifting mechanism, wherein the lifting mechanism comprises a fixed column, the fixed column is sleeved with a sliding block capable of sliding along the axial lead of the fixed column, the sliding block is integrally connected with a limit block matched with the sliding block to coat the fixed column, the sliding block is hinged with a first rotating rod, the other end of the first rotating rod is hinged with a second rotating rod, the second rotating rod is hinged with the fixed column, the hinged part of the second rotating rod and the fixed column is provided with a first motor for driving the second rotating rod to rotate, one side, away from the first rotating rod, of the sliding block is abutted with a base, the axial lead of the base is integrally connected with a fixed rod, the fixed rod is sleeved with a seat capable of rotating around the axial lead of the seat, the bottom of the seat is provided with a limiting device for limiting the rotation of the seat, the limiting device comprises a fixed shaft arranged inside the seat, the fixed axle has cup jointed L shape pole, L shape pole is connected with the card and goes into the piece towards the one end an organic whole of dead lever, the dead lever ring is equipped with the round and encircles the groove, the dead lever be provided with encircle the groove intercommunication and along the card income groove that encircles the circumference length interval setting in groove, L shape pole round the fixed axle rotate the back, thereby L shape pole drive card income piece removes until the card income piece card goes into the rotation of restriction seat in the card income groove towards the direction of dead lever.

Through adopting above-mentioned technical scheme, first motor can drive the second dwang and rotate round the tie point of second dwang and fixed column, the rotation of second dwang can drive first dwang and rotate and then drive the sliding block and remove along the length direction of fixed column repeatedly, along with the upper and lower removal of sliding block repeatedly, thereby the sliding block can drive the seat and reciprocate and play the purpose of adjusting the seat height, this kind of design has need not to adjust from top to bottom many times, and the people can sit on the chair and can also height-adjusting's advantage under the effect of applying weight to the seat. When the seat does not need to rotate, the L-shaped rod rotates around the axis of the fixed shaft to drive the clamping block to move towards the direction of the fixed shaft until the clamping block is clamped into the clamping groove, and therefore the purpose of limiting the rotation of the seat is achieved.

The invention is further configured to: the table is characterized by further comprising a table body, and the bottom of the table body is also provided with a lifting mechanism.

By adopting the technical scheme, the height of the seat and the height of the table body need to be adjusted in the daily use process, so that the lifting mechanism can be used for adjusting the height of the table body or the seat.

The invention is further configured to: the bottom fixedly connected with first locating plate of seat, first locating plate rotates and is connected with first convex pole, the other end an organic whole of first convex pole is connected with first fixed cover, second convex pole is worn to be equipped with by first fixed cover, the one end an organic whole that first fixed cover was kept away from to second convex pole is connected with the fixed cover of second, the fixed cover of second is worn to be equipped with simultaneously with first locating plate articulated third convex pole, the fixed cover of third has been cup jointed to the one end that first locating plate was kept away from to third convex pole, the fixed cover an organic whole of third is connected with fourth convex pole, fourth convex pole articulates there is the second locating plate, one side fixedly connected with layer board of second locating plate, the second locating plate is articulated with second convex pole.

Through adopting above-mentioned technical scheme, when the layer board expandes, the pulling layer board can drive the second locating plate and remove towards the direction of keeping away from the seat, the removal of second locating plate will drive second convex pole and fourth convex pole removal simultaneously, fourth convex pole will drive the fixed cover of third and remove afterwards, the fixed cover of second will drive the fixed cover of second and remove, and the removal of the fixed cover of third will drive the rotation of third convex pole towards a seat direction, the removal of the fixed cover of second drives the rotation of first convex pole towards the direction of seat, the rotation of the fixed cover of this in-process second can cooperate the rotation of the fixed cover of third convex pole of third to drive together. Finally, the supporting plate can move to the bottom of the seat to achieve the purpose of folding. The supporting plate can be moved out by reverse operation, and is used for bearing feet when a person on the chair sleeps.

The invention is further configured to: the table body includes desktop and table foot, the desktop includes the diaphragm and connects two risers at the diaphragm both ends, every the riser interval is provided with the lifting groove, riser body coupling has the fixed frame that is in lifting groove opening part, every the bottom of fixed frame is provided with the lifting cylinder, the lifting cylinder is connected with the concave plate, the middle part body coupling of concave plate has the division board.

Through adopting above-mentioned technical scheme, the lifting cylinder can drive the concave plate and remove in vertical direction, and the removal of concave plate will drive the division board and remove, and the division board separates into two spaces with the concave plate, and people can increase the ascending utilization ratio of vertical side of desk, improve the rate of utilization of desk.

The invention is further configured to: the bottom of fixed column is provided with the gyro wheel, the equal body coupling in center of the both sides of gyro wheel has the slide bar, the fixed column is connected with brake equipment, brake equipment include with fixed column body coupling's fixed plate, the top of fixed plate is provided with brake cylinder, brake cylinder is connected with the brake block of arcuation, one side that the brake block faced the gyro wheel is provided with a plurality of clutch blocks.

Through adopting above-mentioned technical scheme, when the gyro wheel need not remove, the brake cylinder will drive the brake block and remove until brake block and gyro wheel production squeezing action towards the direction of gyro wheel, and the friction of clutch blocks between brake block and the gyro wheel has strengthened the brake effect of brake equipment, further reinforcing.

In conclusion, the invention has the following beneficial effects:

1. first motor can drive the second dwang and rotate round the tie point of second dwang and fixed column, the rotation of second dwang can drive first dwang and rotate and then drive the sliding block and remove along the length direction of fixed column repeatedly, along with the upper and lower removal of sliding block repeatedly, thereby the sliding block can drive the seat and reciprocate and play the purpose of adjusting the seat height, this kind of design has need not to adjust from top to bottom many times, and the people can sit can also height-adjusting's advantage under the effect of applying weight to the seat on the chair. When the seat does not need to rotate, the L-shaped rod rotates around the axis of the fixed shaft to drive the clamping block to move towards the direction of the fixed shaft until the clamping block is clamped into the clamping groove, and therefore the purpose of limiting the rotation of the seat is achieved.

2. When the layer board expandes, the pulling layer board can drive the second locating plate and remove towards the direction of keeping away from the seat, the removal of second locating plate will drive second convex pole and fourth convex pole removal simultaneously, fourth convex pole will drive the fixed cover of third and remove afterwards, the fixed cover of second will drive the fixed cover of second and remove, and the removal of the fixed cover of third will drive the rotation of third convex pole towards one seat orientation, the removal of the fixed cover of second drives the rotation of first convex pole towards the direction of seat, the rotation of the fixed cover of this in-process second can cooperate the fixed cover of third to drive the rotation of third convex pole together. Finally, the supporting plate can move to the bottom of the seat to achieve the purpose of folding. The supporting plate can be moved out by reverse operation, and is used for bearing feet when a person on the seat sleeps;

3. the invention can enlarge the space utilization rate of the office desk, namely, the slide chair is pushed to move, and then the slide chair drives the roller to roll, so that the roller drives the slide rod to move. Because the area of desktop is great, consequently need to handle official working to the desktop in different regions, after the slide chair moved certain distance, thereby the slide bar will receive the extrusion of extrusion piece to receive the resistance and stop, provide cushioning effect. When no movement is required, the brake will press against the roller and thereby limit the rolling of the roller.

Drawings

FIG. 1 is a front view of the embodiment;

FIG. 2 is a perspective view of the base, securing lever and seat of the embodiment;

FIG. 3 is a schematic structural view of a part of the structure in the embodiment;

FIG. 4 is a schematic view of another state of FIG. 3;

FIG. 5 is a perspective view of the cross plate and the riser of the embodiment;

FIG. 6 is a schematic structural diagram of the connection relationship among the sliding rod, the fixing plate, the friction block, the seat, the brake cylinder, the brake plate and the fixing column in the embodiment.

Reference numerals: 2. a slider; 3. a limiting block; 4. a first rotating lever; 5. a second rotating lever; 6. a first motor; 7. a base; 8. fixing the rod; 9. an L-shaped rod; 10. clamping the block; 11. a surrounding groove; 12. a clamping groove is formed; 13. a table body; 14. a first positioning plate; 15. a second positioning plate; 16. a first male rod; 17. a second male rod; 18. a third male rod; 19. a fourth male rod; 20. a first fixing sleeve; 21. a second fixing sleeve; 22. a third fixing sleeve; 23. a support plate; 24. a desktop; 25. a table leg; 26. a transverse plate; 27. a vertical plate; 28. a lifting groove; 29. a fixing frame; 30. a lifting cylinder; 31. a concave plate; 32. a partition plate; 33. a roller; 34. a slide bar; 35. a fixing plate; 36. a friction block; 37. a seat; 38. a brake cylinder; 39. a brake plate; 40. and (5) fixing the column.

Detailed Description

The invention is further described with reference to the accompanying drawings.

A table and chair lifting device easy to adjust height is shown in figures 1-6 and comprises a lifting mechanism, wherein the lifting mechanism comprises a fixed column 40, a sliding block 2 capable of sliding along the axial lead of the fixed column 40 is sleeved on the fixed column 40, the sliding block 2 is integrally connected with a limiting block 3 matched with the sliding block 2 to coat the fixed column 40, the sliding block 2 is hinged with a first rotating rod 4, the other end of the first rotating rod 4 is hinged with a second rotating rod 5, the second rotating rod 5 is hinged with the fixed column 40, a first motor 6 driving the second rotating rod 5 to rotate is arranged at the hinged position of the second rotating rod 5 and the fixed column 40, a base 7 is abutted to one side of the sliding block 2, far away from the first rotating rod 4, the axial lead of the base 7 is integrally connected with a fixed rod 8, the fixed rod 8 is sleeved with a seat 37 capable of rotating around the axial lead of the fixed rod, seat 37's bottom is provided with restriction seat 37 pivoted limiting device, limiting device is including setting up in the inside fixed axle of seat 37, L shape pole 9 has been cup jointed to the fixed axle, L shape pole 9 has the block 10 of sticking into towards the one end body coupling of dead lever 8, dead lever 8 encircles and is equipped with the round and encircles groove 11, dead lever 8 is provided with and encircles groove 11 intercommunication and along the stuck groove 12 that encircles the circumference length interval setting in groove 11, and L shape pole 9 rotates the back round the fixed axle, thereby L shape pole 9 drives the direction removal of block 10 towards dead lever 8 and limits seat 37's rotation until block 10 card income stuck groove 12.

The table is characterized by further comprising a table body 13, and a lifting mechanism is also arranged at the bottom of the table body 13.

The bottom fixedly connected with first locating plate 14 of seat 37, first locating plate 14 rotates and is connected with first convex pole 16, first fixed cover 20 is connected with to the other end an organic whole of first convex pole 16, second convex pole 17 is worn to be equipped with by first fixed cover 20, the fixed cover 21 of second is connected with to the one end an organic whole that first fixed cover 20 was kept away from by second convex pole 17, the fixed cover 21 of second is worn to be equipped with simultaneously with first locating plate 14 articulated third convex pole 18, the fixed cover 22 of third has been cup jointed to the one end that first locating plate 14 was kept away from to third convex pole 18, the fixed cover 22 an organic whole of third is connected with fourth convex pole 19, fourth convex pole 19 articulates there is second locating plate 15, one side fixedly connected with layer board 23 of second locating plate 15, second locating plate 15 is articulated with second convex pole 17.

When the supporting plate 23 is unfolded, pulling the supporting plate 23 can drive the second positioning plate 15 to move in a direction away from the seat 37, the movement of the second positioning plate 15 will drive the second convex rod 17 and the fourth convex rod 19 to move simultaneously, then the fourth convex rod 19 will drive the third fixing sleeve 22 to move, the second convex rod 17 will drive the second fixing sleeve 21 to move, the movement of the third fixing sleeve 22 will drive the third convex rod 18 to rotate in a direction towards the seat, the movement of the second fixing sleeve 21 drives the first convex rod 16 to rotate in a direction towards the seat 37, and in this process, the rotation of the second fixing sleeve 21 can drive the rotation of the third convex rod 18 together with the third fixing sleeve 22. Eventually the platform 23 will move to the bottom of the seat 37 for stowing purposes. The reverse operation allows the platform 23 to be removed for carrying the feet while the person in the seat 37 is sleeping.

It should be noted that when the support plate 23 moves the farthest, the support plate 23 falls down by gravity, and the second male rod 17 will be supported by the third fixing sleeve 22, so as to support the foot by the support plate 23.

The table body 13 includes desktop 24 and table foot 25, desktop 24 includes diaphragm 26 and connects two risers 27 at diaphragm 26 both ends, every riser 27 interval is provided with lifting groove 28, riser 27 body coupling has the fixed frame 29 that is in the opening part of lifting groove 28, every the bottom of fixed frame 29 is provided with lifting cylinder 30, lifting cylinder 30 is connected with concave plate 31, concave plate 31's middle part body coupling has division board 32.

The bottom of fixed column 40 is provided with gyro wheel 33, the equal body coupling in center of the both sides of gyro wheel 33 has slide bar 34, fixed column 40 is connected with brake equipment, brake equipment includes the fixed plate 35 with fixed column 40 body coupling, the top of fixed plate 35 is provided with brake cylinder 38, brake cylinder 38 is connected with arcuation brake block 39, one side that the brake block faced gyro wheel 33 is provided with a plurality of clutch blocks 36.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an easily height-adjusting's table chair elevating gear which characterized in that: including the lifting mechanism, the lifting mechanism includes fixed column (40), fixed column (40) have cup jointed gliding sliding block (2) along fixed column (40) axial lead, sliding block (2) an organic whole is connected with stopper (3) of cooperation sliding block (2) cladding fixed column (40), sliding block (2) articulate has first dwang (4), the other end of first dwang (4) articulates there is second dwang (5), second dwang (5) are articulated with fixed column (40), the articulated department of second dwang (5) and fixed column (40) is provided with drive second dwang (5) pivoted first motor (6), one side butt that first dwang (4) was kept away from in sliding block (2) has connect base (7), the axial lead integral connection of base (7) has dead lever (8), dead lever (8) have cup jointed can be around self axial lead pivoted seat (37), the bottom of seat (37) is provided with restriction seat (37) pivoted limiting device, limiting device is including setting up in the inside fixed axle of seat (37), L shape pole (9) have been cup jointed to the fixed axle, L shape pole (9) are towards one end body coupling of fixed lever (8) and are blocked into piece (10), fixed lever (8) ring is equipped with the round and encircles groove (11), fixed lever (8) are provided with and encircle groove (11) intercommunication and along the card income groove (12) that encircle the circumferential length interval setting of groove (11), thereby L shape pole (9) rotate the back round the fixed axle, thereby L shape pole (9) drive block (10) are blocked into the direction removal of fixed lever (8) and are blocked into the card income groove (12) and restrict the rotation of seat (37), the bottom fixedly connected with first locating plate (14) of seat (37), the first positioning plate (14) is rotationally connected with a first convex rod (16), the other end of the first convex rod (16) is integrally connected with a first fixed sleeve (20), a second convex rod (17) penetrates through the first fixing sleeve (20), a second fixing sleeve (21) is integrally connected with one end, far away from the first fixing sleeve (20), of the second convex rod (17), a third convex rod (18) which is hinged with the first positioning plate (14) at the same time passes through the second fixing sleeve (21), one end of the third convex rod (18) far away from the first positioning plate (14) is sleeved with a third fixing sleeve (22), the third fixing sleeve (22) is integrally connected with a fourth convex rod (19), the fourth convex rod (19) is hinged with a second positioning plate (15), one side of the second positioning plate (15) is fixedly connected with a supporting plate (23), and the second positioning plate (15) is hinged with a second convex rod (17).

2. A table and chair lift device with easy height adjustment according to claim 1, wherein: the table is characterized by further comprising a table body (13), and the bottom of the table body (13) is also provided with a lifting mechanism.

3. A table and chair lift device with easy height adjustment according to claim 2, wherein: the table body (13) includes desktop (24) and table foot (25), desktop (24) include diaphragm (26) and connect two riser (27) at diaphragm (26) both ends, every riser (27) interval is provided with lifting groove (28), riser (27) body coupling has fixed frame (29) that are in lifting groove (28) opening part, every the bottom of fixed frame (29) is provided with lifting cylinder (30), lifting cylinder (30) are connected with concave plate (31), the middle part body coupling of concave plate (31) has division board (32).

4. A table and chair lift device with easy height adjustment according to claim 1, wherein: the bottom of fixed column (40) is provided with gyro wheel (33), the equal body coupling in center of the both sides of gyro wheel (33) has slide bar (34), fixed column (40) are connected with brake equipment, brake equipment includes fixed plate (35) with fixed column (40) body coupling, the top of fixed plate (35) is provided with brake cylinder (38), brake cylinder (38) are connected with arcuation brake block (39), one side of brake block (39) towards gyro wheel (33) is provided with a plurality of clutch blocks (36).