CN215820180U

CN215820180U - Foldable desk

Info

Publication number: CN215820180U
Application number: CN202120449346.5U
Authority: CN
Inventors: 魏昆昆
Original assignee: Individual
Current assignee: Xi'an Dongkang Teaching Equipment Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2022-02-15
Anticipated expiration: 2031-03-02

Abstract

The utility model discloses a foldable desk, which comprises supporting legs, wherein the upper ends of the supporting legs are fixedly provided with bottom plates, a left side plate is fixedly arranged at the upper end of the bottom plate, a transmission shaft movably penetrates through the left side plate, a ratchet wheel is sleeved on the surface of the transmission shaft, and one end of the transmission shaft is fixedly provided with a rocker, the other end of the transmission shaft is fixedly provided with a group of conical gears, the upper ends of the group of conical gears are fixedly connected with a screw rod, the screw rod is movably penetrated with a telescopic rod, a nut is arranged in the telescopic rod, the screw thread of the screw rod penetrates through the nut, the bottom of the telescopic rod is fixedly provided with a support frame, the surface of the left side plate is fixedly provided with a baffle plate, the height of the students is different at present, the height requirement for the table is different, the rocker can be rotated, the transmission shaft drives the bevel gear to rotate, the bevel gear drives the screw rod to rotate, and the screw rod drives the telescopic rod to move upwards to adjust the height of the table top.

Description

Foldable desk

Technical Field

The utility model relates to the technical field of folding, in particular to a folding desk.

Background

The development of advanced education career is continuously improved while the scientific technology of China is rapidly developed, the construction of related hardware facilities of each school is accelerated, various advanced teaching instruments are continuously introduced into classrooms, and the learning efficiency of students is improved. However, the design defects of most desks used by students lead to the increase of physical fatigue and other phenomena of the students, and the study efficiency and the physical health are seriously influenced. At present, most institutes and schools in China adopt fixed desks, and the fixed desks have the advantages of being neat and attractive and convenient to manage. However, the height of the traditional fixed desk is the same, the angle of the desktop cannot be adjusted, and the requirements of students with different heights on the height of the desk and the eye use habits cannot be met. If the student uses the desk which is not suitable for the student for a long time, muscle fatigue of the student is inevitably caused, and the learning efficiency is seriously influenced; on the contrary, if the student uses a desk adapted to the student, the fatigue of the student can be reduced, and the learning efficiency can be improved, and therefore, a foldable desk is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a foldable desk to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a foldable desk comprises four supporting legs, wherein a bottom plate is fixedly arranged at the upper ends of the supporting legs, a left side plate is fixedly arranged at the upper end of the bottom plate, a groove hole is formed in the left side plate, a transmission shaft movably penetrates through the groove hole in the left side, a ratchet wheel is sleeved on the surface of the transmission shaft, a rocker is fixedly arranged at one end of the transmission shaft, a group of bevel gears is fixedly arranged at the other end of the transmission shaft, a lead screw is fixedly connected to the upper end of the group of bevel gears, a telescopic rod movably penetrates through the lead screw, a nut is arranged inside the telescopic rod, the lead screw penetrates through the nut in a threaded manner, the nut is movably matched inside the telescopic rod, and a supporting frame is fixedly arranged at the bottom of the telescopic rod;

the novel ratchet wheel is characterized in that a baffle is fixedly arranged on the surface of the left side plate, a spring is fixedly arranged on the surface of the baffle, a pawl is fixedly connected to one end of the spring, a group of second clamping plates are fixedly arranged on the surface of the baffle, the pawl is inserted into the second clamping plates in a rotating mode, and the pawl is connected with a ratchet wheel in a meshed mode.

Preferably, the contact of left side board upper end is equipped with the table, the fixed a set of first splint that are equipped with of table lower extreme, a set of first splint fixed surface is equipped with the clamp splice, clamp splice and telescopic link upper end fixed connection, when the telescopic link reciprocated, drive the table and reciprocate.

Preferably, the fixed surface of bottom plate upper surface is equipped with the right side board, right side board fixed mounting has a set of backup pad, changes the board and places in the backup pad after overturning, makes to change the board and can keep the level, can put some stationery, paper and books etc..

Preferably, the surface of the left side plate is fixedly provided with a stop lever, the stop lever is positioned between the baffle and the pawl, books and stationery placed on the desk and arms of students can be powerfully generated when placed on the desk, the conical gear is prevented from rotating the desk plate reversely to descend, and the stop lever can block the movement of the pawl.

Preferably, the placing groove has been seted up on the table surface, the placing groove top is equipped with the commentaries on classics board, the commentaries on classics board activity is inserted and is established in the placing groove, and after the commentaries on classics board rotates and comes, can put into the placing groove to books, prevent that desktop books are too much, block student's sight, influence learning efficiency, also can put some stationery and books and the like on the commentaries on classics board, can save the desktop space.

Compared with the prior art, the utility model has the beneficial effects that:

1. the height requirements of the existing students on the height of the desk are different, the rocker can be rotated, the transmission shaft drives the bevel gear to rotate, the bevel gear drives the screw rod to rotate, and the screw rod drives the telescopic rod to move upwards to adjust the height of the desk plate;

2. when the height of the desk plate is adjusted to a required height, the force generated when the desk plate is placed on a desk by the aid of the books and the arms of students is prevented from rotating reversely, the pawls are clamped by the stop levers to play a role in fixing, and when the height needs to be adjusted downwards, the pawls are pulled outwards and adjusted downwards by the rotating rocker;

3. the rotating plate can be outwards turned, the placing groove can be used for placing auxiliary textbook data of students after turning, the sight lines of the students are prevented from being blocked, stationery, homework books and the like can be placed on the rotating plate, and more space can be saved for the students to write and study.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the pawl of the present invention;

FIG. 3 is a schematic isometric view of the southeast of the structure of the present invention;

FIG. 4 is a schematic view of the telescoping pole structure of the present invention;

in the figure: 1. supporting legs; 11. a base plate; 12. a left side plate; 13. a right side plate; 14. a table plate; 15. a first splint; 16. a clamping block; 17. rotating the plate; 18. a placement groove; 19. a support plate; 2. a ratchet wheel; 21. a rocker; 22. a drive shaft; 23. a bevel gear; 24. a support frame; 25. a baffle plate; 26. a spring; 27. a second splint; 28. a pawl; 29. a stop lever; 3. a telescopic rod; 31. a nut; 32. and a screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a foldable desk comprises a supporting leg 1, wherein a bottom plate 11 is fixedly arranged at the upper end of the supporting leg 1, a left side plate 12 is fixedly arranged at the upper end of the bottom plate 11, a transmission shaft 22 penetrates through the left side plate 12 in a movable mode, a ratchet 2 is sleeved on the surface of the transmission shaft 22, a rocker 21 is fixedly arranged at one end of the transmission shaft 22, a group of conical gears 23 is fixedly arranged at the other end of the transmission shaft 22, a lead screw 32 is fixedly connected to the upper end of the group of conical gears 23, an expansion link 3 penetrates through the lead screw 32 in a movable mode, a nut 31 is arranged inside the expansion link 3, the lead screw 32 penetrates through the nut 31 in a threaded mode, and a supporting frame 24 is fixedly arranged at the bottom of the expansion link 3;

the surface of the left side plate 12 is fixedly provided with a baffle plate 25, the surface of the baffle plate 25 is fixedly provided with a spring 26, one end of the spring 26 is fixedly connected with a pawl 28, the surface of the baffle plate 25 is fixedly provided with a group of second clamping plates 27, the second clamping plates 27 are rotatably inserted with the pawl 28, and the pawl 28 is meshed with the ratchet 2.

As an embodiment of the present invention, a table plate 14 is disposed at the upper end of the left side plate 12 in contact with the lower end of the table plate 14, a set of first clamping plates 15 is fixedly disposed at the lower end of the table plate 14, a clamping block 16 is fixedly disposed on the surface of the set of first clamping plates 15, and the clamping block 16 is fixedly connected to the upper end of the telescopic rod 3.

In an embodiment of the present invention, a right side plate 13 is fixedly disposed on the upper surface of the bottom plate 11, and a set of supporting plates 19 is fixedly disposed on the surface of the right side plate 13.

In one embodiment of the present invention, a stop lever 29 is fixedly mounted on the surface of the left side plate 12, and the stop lever 29 is located between the baffle 25 and the pawl 28.

In one embodiment of the present invention, a placement groove 18 is formed on the surface of the table plate 14, a rotating plate 17 is disposed above the placement groove 18, and the rotating plate 17 is movably inserted into the placement groove 18.

The working principle is as follows: according to the different students of height, can adjust table 14 height, rotate rocker 21, it rotates to drive bevel gear 23 through transmission shaft 22, bevel gear 23 drives lead screw 32 and rotates, lead screw 32 drives telescopic link 3 rebound and adjusts the height of table 14, when table 14 altitude mixture control reaches required height, books and student's arm are put and all can produce the power on the desk, prevent lead screw 32 reversal, pin 29 can block pawl 28, play fixed effect, when high needs down-regulation, outwards draw pawl 28, down-regulate rotating rocker 21, change board 17 can outwards overturn, standing groove 18 can put student's textbook supplementary data after the upset, prevent to block student's sight, stationery and exercise book etc. can be put on change board 17, can save more spaces and be used for the study of writing for the student.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A foldable desk comprises a supporting leg (1) and is characterized in that a bottom plate (11) is fixedly arranged at the upper end of the supporting leg (1), a left side plate (12) is fixedly arranged at the upper end of the bottom plate (11), a transmission shaft (22) penetrates through the left side plate (12) in a movable mode, a ratchet wheel (2) is sleeved on the surface of the transmission shaft (22), a rocker (21) is fixedly arranged at one end of the transmission shaft (22), a group of conical gears (23) is fixedly arranged at the other end of the transmission shaft (22), a lead screw (32) is fixedly connected to the upper end of the group of conical gears (23), a telescopic rod (3) penetrates through the lead screw (32) in a movable mode, a nut (31) is arranged inside the telescopic rod (3), the lead screw (32) penetrates through the nut (31) in a threaded mode, and a supporting frame (24) is fixedly arranged at the bottom of the telescopic rod (3);

left side board (12) fixed surface is equipped with baffle (25), baffle (25) fixed surface is equipped with spring (26), spring (26) one end fixedly connected with pawl (28), baffle (25) fixed surface installs a set of second splint (27), and is a set of second splint (27) rotate to insert and are equipped with pawl (28), pawl (28) are connected with ratchet (2) meshing.

2. The foldable desk of claim 1, wherein: left side board (12) upper end contact is equipped with table (14), table (14) lower extreme is fixed and is equipped with a set of first splint (15), and is a set of first splint (15) fixed surface is equipped with clamp splice (16), clamp splice (16) and telescopic link (3) upper end fixed connection.

3. The foldable desk of claim 1, wherein: the upper surface of the bottom plate (11) is fixedly provided with a right side plate (13), and the surface of the right side plate (13) is fixedly provided with a group of supporting plates (19).

4. The foldable desk of claim 1, wherein: a stop lever (29) is fixedly mounted on the surface of the left side plate (12), and the stop lever (29) is located between the baffle (25) and the pawl (28).

5. The foldable desk of claim 2, wherein: a placing groove (18) is formed in the surface of the table plate (14), a rotating plate (17) is arranged above the placing groove (18), and the rotating plate (17) is movably inserted into the placing groove (18).