CN209750284U

CN209750284U - Liftable desk

Info

Publication number: CN209750284U
Application number: CN201920054475.7U
Authority: CN
Inventors: 周静
Original assignee: Hefei Yali Furniture Co Ltd
Current assignee: Hefei Yali Furniture Co Ltd
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2019-12-10
Anticipated expiration: 2029-01-11

Abstract

The utility model relates to a table utensil discloses a liftable desk, including the table, with the fixed last table railway carriage or compartment of table, lower table railway carriage or compartment and with the fixed table leg in lower table railway carriage or compartment, be equipped with lifting unit between last table railway carriage or compartment and the lower table railway carriage or compartment, lifting unit includes and rotates the axis of rotation of being connected with lower table railway carriage or compartment top, be fixed with drive bevel gear in the axis of rotation, lower table railway carriage or compartment top is fixed with the limiting plate, rotate on the limiting plate be connected with last table railway carriage or compartment bottom threaded connection's screw rod, screw rod one end is fixed with the driven bevel gear with drive bevel gear meshing, it is connected with the end cover that is used for driving axis of rotation pivoted to rotate on the. When the rotating shaft rotates, the driving bevel gear and the driven bevel gear rotate, the screw rod is driven by the driven bevel gear to rotate, the screw rod is in threaded connection with the upper table compartment, two sides of the upper table compartment are limited between two side walls of the lower table compartment, and the upper table compartment moves along the length direction of the screw rod, so that the height of the table top is lifted, the lifting mode of the screw rod is stepless adjustment, and the practicability is high.

Description

Liftable desk

Technical Field

The utility model relates to a table, in particular to a lifting desk.

Background

The desks used by students are used in schools from eight-square desks in the earliest school hall, most of the desks are fixed styles, and the styles and various parameters of the desks in the same classroom are the same. Along with the improvement of modern quality of life and teaching quality, some novel desks are produced and applied to classrooms or study rooms, wherein the lifting desk is also called as an adjustable desk, as the name suggests, the height of the desk is adjustable, and the desk has the function of adjusting the height, so that the desk is suitable for students with different body shapes, and the comfort level of the students is improved.

At present, the chinese utility model with publication number CN202919453U discloses a lifting desk, which comprises a desk and hidden screws, wherein the middle of the legs of the lifting desk is provided with hidden lifting fixing screws, and the periphery of the legs is provided with a safety fixing sleeve for reinforcing the legs.

according to the technical scheme, the desk lifting screw is hidden in the safety fixing sleeve, so that the legs and the feet of the student are prevented from being scratched, and a protection effect is achieved. But has the following disadvantages: the lifting purpose is achieved by matching the lifting screw with different through holes, the precision of the lifting mode adjustment is small, and the practicability is low. Therefore, a liftable desk which can adjust the height of a desktop in an infinite way and has strong practicability is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a lifting desk which can adjust the height of a desk top in an stepless manner and has strong practicability.

The above technical purpose of the present invention can be achieved by the following technical solutions:

A lifting desk comprises a desk plate, an upper desk compartment, a lower desk compartment and desk legs, wherein the upper desk compartment is fixed with the desk plate, the lower desk compartment is fixed with the desk legs, a lifting assembly is arranged between the upper desk compartment and the lower desk compartment, the lifting assembly comprises a rotating shaft which is rotatably connected with the top of the lower desk compartment, a driving bevel gear is fixed on the rotating shaft, a limiting plate is fixed on the top of the lower desk compartment, a screw rod which is in threaded connection with the bottom of the upper desk compartment is rotatably connected onto the limiting plate, a driven bevel gear which is meshed with the driving bevel gear is fixed at one end of the screw rod, and an end cover which is used for driving the rotating shaft to rotate is rotatably connected onto the side wall of the lower desk compartment.

By adopting the technical scheme, the lifting assembly consisting of the end cover, the rotating shaft, the driving bevel gear, the driven bevel gear, the screw rod and the limiting plate is arranged, when the end cover drives the rotating shaft to rotate, the driving bevel gear rotates along with the rotating shaft and drives the driven bevel gear to rotate, the screw rod rotates under the drive of the driven bevel gear, the screw rod is in threaded connection with the upper table compartment, two sides of the upper table compartment are limited between two side walls of the lower table compartment, when the screw rod rotates, the upper table compartment moves along the length direction of the screw rod, the lifting of the height of the table top is realized, the lifting mode of the screw rod is stepless adjustment, and the.

The utility model discloses further set up to, axis of rotation one end is fixed with the quarter butt, the end cover inboard be fixed with the fixed block that the quarter butt was contradicted, just fixed block quantity is 2, quarter butt one end is located two between the fixed block.

By adopting the technical scheme, the two fixed blocks are arranged in the end cover, when the end cover rotates, one fixed block is abutted against the short rod and drives the short rod to rotate by taking the rotating shaft as an axis, the rotating shaft rotates along with the short rod and drives the lifting assembly to operate, and the two fixed blocks realize that the clockwise rotation and the anticlockwise rotation of the end cover can drive the rotating shaft to rotate; the short rod plays a lever role, so that a user can lift the lifting rod more easily.

The utility model discloses further set up to, the upper table railway carriage or compartment with still install between the lower table railway carriage or compartment and consolidate the subassembly, consolidate the subassembly including seting up the draw-in groove that distributes is arranged along the direction of height on the upper table railway carriage or compartment lateral wall, the L chamber of inclining has been seted up down to table railway carriage or compartment lateral wall top, L intracavity slip be connected with draw-in groove joint complex fixture block.

Through adopting above-mentioned technical scheme, the setting is by the reinforcement subassembly that draw-in groove and fixture block are constituteed, utilizes the joint cooperation of fixture block and draw-in groove to realize the restriction to the table railway carriage or compartment to this stability that improves the desktop.

The utility model discloses further set up to, the fixture block with be fixed with first spring between the L shape intracavity wall, L shape chamber bottom is fixed with the second spring, be fixed with on the second spring with the backup pad of contradicting bottom the fixture block.

By adopting the technical scheme, when the table board stops lifting, the clamping blocks are pushed into the corresponding clamping grooves under the combined action of the first spring and the second spring, so that reinforcement is realized; the number of the clamping grooves is limited due to the arrangement of the second spring, so that the purpose of completing stepless adjustment by matching with the lifting assembly is achieved.

The utility model discloses further set up to, the fixture block top is fixed with the push pedal, the push pedal with L shape chamber open-top cooperation of sliding.

Through adopting above-mentioned technical scheme, at the fixed push pedal of fixture block top, utilize the push pedal drive fixture block to slide to this joint of removing fixture block and draw-in groove, the table of being convenient for descends.

The utility model discloses set up as further, table week side cladding has the rubber sleeve, rubber sleeve upper surface is higher than table upper surface 2-3 mm.

By adopting the technical scheme, the rubber sleeve is coated on the periphery of the desk plate, so that the desk plate plays a role in protecting students; on the other hand, the rubber sleeve is slightly higher than the desk plate, so that the sign pen and other articles can be effectively prevented from falling.

The utility model discloses further set up to, the bar groove has been seted up on the table upper surface.

through adopting above-mentioned technical scheme, set up the bar groove on the table, utilize the area of utilization of bar groove increase table, the placing of the stationery of being convenient for to reinforcing the practicality.

The utility model discloses further set up as, the table leg bottom is fixed with the protection pad.

Through adopting above-mentioned technical scheme, set up the protection pad in the table leg bottom to this converts the rigidity touching between table leg and the ground into flexible touching, thereby avoids ground by the fish tail.

The utility model discloses further set up to, set up on the end cover and supply user's five fingers male recess.

Through adopting above-mentioned technical scheme, set up the recess on the end cover to this user of being convenient for exerts oneself and rotates the end cover, thereby the lift of the table of being convenient for.

To sum up, the utility model discloses a beneficial technological effect does:

1. In the scheme, when the rotating shaft rotates, the driving bevel gear and the driven bevel gear rotate, the screw rod is driven by the driven bevel gear to rotate, the screw rod is in threaded connection with the upper table compartment, two sides of the upper table compartment are limited between two side walls of the lower table compartment, and the upper table compartment moves along the length direction of the screw rod, so that the height of the table top is lifted, the lifting mode of the screw rod is stepless adjustment, and the practicability is high;

2. In the scheme, when the table board stops lifting, the clamping blocks are pushed into the corresponding clamping grooves under the combined action of the first spring and the second spring, so that reinforcement is realized; the number of the clamping grooves is limited by the arrangement of the second spring, so that the purpose of completing stepless adjustment by matching with the lifting assembly is achieved;

3. According to the scheme, the rubber sleeve is coated on the periphery of the desk plate, so that the desk plate plays a role in protecting students on one hand; on the other hand, the rubber sleeve is slightly higher than the desk plate, so that the sign pen and other articles can be effectively prevented from falling.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic sectional view of the embodiment;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

Fig. 4 is an enlarged schematic view at B in fig. 2.

In the figure: 10. a table plate; 11. putting the table box on; 111. a threaded hole; 12. a lower desk compartment; 121. a circular groove; 122. an L-shaped cavity; 13. desk legs; 14. a strip-shaped groove; 15. a rubber sleeve; 16. a protection pad; 21. an end cap; 211. a fixed block; 22. a rotating shaft; 221. a short bar; 23. a drive bevel gear; 24. a driven bevel gear; 25. a screw; 26. a limiting plate; 31. a card slot; 32. a clamping block; 321. pushing the plate; 33. a first spring; 34. a support plate; 35. a second spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a liftable desk comprises a desk board 10, an upper desk compartment 11, a lower desk compartment 12 and desk legs 13. The table board 10 is a rectangular plate structure and is fixed on the upper table compartment 11. The desk plate 10 is further provided with a strip-shaped groove 14, and the strip-shaped groove 14 is used for holding stationery. The periphery of the desk plate 10 is further coated with a rubber sleeve 15, the rubber sleeve 15 is made of rubber and has elasticity, and therefore, on one hand, the desk plate plays a role in protecting students; on the other hand, the upper surface of the rubber sleeve 15 is 2-3mm higher than the upper surface of the desk board 10, so that stationery such as sign pens can be effectively prevented from falling off. The upper table compartment 11 and the lower table compartment 12 are both open, and two inner side walls of the lower table compartment 12 are abutted with two outer side walls of the upper table compartment 11. The table legs 13 are arc-shaped, the top of the table legs 13 is fixed with the bottom of the lower compartment 12, the bottom of the table legs 13 is fixed with a protective pad 16, and the protective pad 16 is used for preventing the ground from being scratched by the table legs 13.

As shown in fig. 2, a lifting assembly is installed between the upper car 11 and the lower car 12, and the lifting assembly includes an end cover 21, a rotating shaft 22, a drive bevel gear 23, a driven bevel gear 24, a screw 25, and a limit plate 26. Both ends of the rotating shaft 22 are rotatably connected to both side walls of the lower cage 12, respectively, and the end caps 21 are mounted on the ends of the rotating shaft 22. Referring to fig. 1, a circular groove 121 is formed in a side wall of the lower car 12, the end cover 21 is circular, and is rotatably connected in the circular groove 121, and a groove for conveniently inserting five fingers of a user is formed in the periphery of the end cover 21. Referring to fig. 3, two fixing blocks 211 are fixed to the inner side of the end cap 21, a short rod 221 is fixed to the end of the rotating shaft 22, and one end of the short rod 221 is located between the two fixing blocks 211. The bottom of the lower desk compartment 12 is provided with a threaded hole 111, and the threaded hole 111 is in threaded fit with the screw 25; the limit plate 26 is located at the lower side of the upper compartment 11, two ends of the limit plate 26 are fixed to two side walls of the lower compartment 12, and one end of the screw 25 penetrates through the limit plate 26 and is rotatably connected with the limit plate 26. A drive bevel gear 23 is fixed to the rotating shaft 22, a driven bevel gear 24 is fixed to the bottom of the screw 25, and the driven bevel gear 24 is engaged with the drive bevel gear 23. When a user rotates the end cover 21, one of the two fixing blocks 211 abuts against the short rod 221 to push the short rod 221 to rotate around the rotating shaft 22, the rotating shaft 22 rotates along with the rotating shaft, the driving bevel gear 23 rotates along with the rotating shaft and drives the driven bevel gear 24 to rotate, the screw rod 25 rotates under the driving of the driven bevel gear 24, the screw rod 25 is in threaded connection with the upper table compartment 11, two sides of the upper table compartment 11 are limited between two side walls of the lower table compartment 12, and when the screw rod 25 rotates, the upper table compartment 11 moves along the length direction of the screw rod 25, so that the height of a table top is lifted.

As shown in fig. 2, a reinforcing member is further installed between the upper car 11 and the lower car 12, and the reinforcing member includes a locking groove 31, a locking block 32, a first spring 33, a supporting plate 34, and a second spring 35. An L-shaped cavity 122 is formed in the top of the sidewall of one side of the lower car 12, the cross section of the L-shaped cavity 122 is L-shaped, and the L-shaped cavity 122 has openings at the top and the side of the lower car 12. The slots 31 are formed in the side wall of the upper compartment 11 and are distributed along the height direction of the upper compartment 11. The section of the latch 32 is triangular, and the latch 32 is slidably connected in the L-shaped cavity 122, and the sharp end of the latch 32 is engaged with the latch groove 31. The first spring 33 is fixed between the latch 32 and the inner wall of the L-shaped cavity 122, and is used for providing a horizontal pushing force for the latch 32 to abut against the latch slot 31. The supporting plate 34 is located at the lower side of the latch 32, and the second spring 35 is fixed between the supporting plate 34 and the bottom of the L-shaped cavity 122, for providing a vertical pushing force for the latch 32 to abut against the latch slot 31. Because the lifting of the lifting assembly is stepless adjustment, and the clamping groove 31 is non-stepless adjustment, the springs in two directions are arranged to apply acting force on the clamping block 32, so that the clamping of the clamping block 32 and the clamping groove 31 can be matched with the stepless adjustment of the lifting assembly.

the top of the clamping block 32 is further fixed with a push plate 321, the push plate 321 is connected with the top opening of the L-shaped cavity 122 in a sliding manner, and the arrangement of the push plate 321 facilitates a user to release the clamping connection between the clamping block 32 and the clamping groove 31, so that the user can adjust the table top 10 to descend.

When the multifunctional desk is used, a user only needs to rotate the end cover 21 to drive the rotating shaft 22 to rotate, the driving bevel gear 23 rotates along with the rotating shaft and drives the driven bevel gear 24 to rotate, the screw rod 25 rotates under the driving of the driven bevel gear 24, the screw rod 25 is in threaded connection with the upper desk compartment 11, two sides of the upper desk compartment 11 are limited between two side walls of the lower desk compartment 12, when the screw rod 25 rotates, the upper desk compartment 11 moves along the length direction of the screw rod 25, the height of a desk top is lifted, the lifting mode of the screw rod 25 is stepless adjustment, and the multifunctional desk is high in practicability.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. a liftable desk comprises a desk plate (10), an upper desk compartment (11), a lower desk compartment (12) and desk legs (13), wherein the upper desk compartment (11) is fixed with the desk plate (10), and the lower desk compartment (12) is fixed with the desk legs (13), and is characterized in that: the lifting assembly is arranged between the upper table compartment (11) and the lower table compartment (12), the lifting assembly comprises a rotating shaft (22) rotatably connected with the top of the lower table compartment (12), a driving bevel gear (23) is fixed on the rotating shaft (22), a limiting plate (26) is fixed on the top of the lower table compartment (12), a screw rod (25) in threaded connection with the bottom of the upper table compartment (11) is rotatably connected on the limiting plate (26), a driven bevel gear (24) meshed with the driving bevel gear (23) is fixed at one end of the screw rod (25), and an end cover (21) used for driving the rotating shaft (22) to rotate is rotatably connected on the side wall of the lower table compartment (12).

2. The liftable desk of claim 1, wherein: axis of rotation (22) one end is fixed with quarter butt (221), end cover (21) inboard be fixed with fixed block (211) that quarter butt (221) contradict, just fixed block (211) quantity is 2, quarter butt (221) one end is located two between fixed block (211).

3. The liftable desk of claim 1, wherein: and a reinforcing component is further arranged between the upper table compartment (11) and the lower table compartment (12), the reinforcing component comprises clamping grooves (31) which are arranged and distributed on the side wall of the upper table compartment (11) along the height direction, an L-shaped cavity (122) is formed in the top of the side wall of the lower table compartment (12), and a clamping block (32) which is in clamping fit with the clamping grooves (31) is connected in the L-shaped cavity (122) in a sliding manner.

4. A liftable desk according to claim 3, characterized in that: a first spring (33) is fixed between the clamping block (32) and the inner wall of the L-shaped cavity (122), a second spring (35) is fixed at the bottom of the L-shaped cavity (122), and a supporting plate (34) abutting against the bottom of the clamping block (32) is fixed on the second spring (35).

5. A liftable desk according to claim 3, characterized in that: a push plate (321) is fixed to the top of the clamping block (32), and the push plate (321) is in sliding fit with an opening in the top of the L-shaped cavity (122).

6. the liftable desk of claim 1, wherein: the table is characterized in that a rubber sleeve (15) is wrapped on the periphery of the table plate (10), and the upper surface of the rubber sleeve (15) is 2-3mm higher than the upper surface of the table plate (10).

7. The liftable desk of claim 1, wherein: a strip-shaped groove (14) is formed in the upper surface of the table plate (10).

8. The liftable desk of claim 1, wherein: and a protective pad (16) is fixed at the bottom of each table leg (13).

9. The liftable desk of claim 1, wherein: the end cover (21) is provided with a groove for inserting five fingers of a user.