CN213664150U - Desk for teaching - Google Patents

Abstract

The utility model relates to a teaching equipment technical field just discloses a desk is used in teaching, include the bottom plate and the hollow post that is located the bottom plate left and right sides, bottom plate top fixed mounting has the motor, motor output fixed mounting has the worm. This desk for teaching, drive worm forward through starter motor and rotate, the worm drives two worm wheel forward simultaneously and rotates and makes two bull sticks drive the head rod upwards to rotate, two second connecting rods drive the slide bar and upwards promote the table that the telescopic link upwards promotes, reach the purpose of adjusting the table rebound, two second connecting rods extrude buffering subassembly inwards, the inside spring of buffering subassembly can be adjusted between head rod and the second connecting rod apart from making the slide bar can not take place to block, starter motor reverse rotation makes the worm drive two worm wheel reverse rotation, the worm wheel drives the head rod and makes the second connecting rod drive the slide bar make the telescopic link slide downwards, thereby reach the purpose that the table adjusted downwards.

Description

Desk for teaching

Technical Field

The utility model relates to a teaching equipment technical field specifically is a desk is used in teaching.

Background

The teaching desk is used for students, and the desks used for schools are unified into the desk from the eight-side desk in the earliest school hall.

The desk is indispensable equipment for students to attend class, and the desk on the market generally is fixed height at present, and the desk height is the customization of adaptation most students, but for the higher student of height and shorter student study on it can produce some myopia, the potential harm of bow-backed, so provide a teaching desk and solve above-mentioned problem of proposing.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a desk for teaching, possess advantages such as adjust from top to bottom, solved present desk on the market generally for fixed height, desk height is the customization of adaptation most students, nevertheless can produce some shortsighteds, the problem of the potential harm of bow-backed to the higher student of height and height study on it for a long time.

(II) technical scheme

In order to realize the purpose of adjusting up and down, the utility model provides a following technical scheme: a desk for teaching comprises a bottom plate and hollow columns positioned on the left side and the right side of the bottom plate, wherein a motor is fixedly installed at the top end of the bottom plate, a worm is fixedly installed at the output end of the motor, two support frames which are symmetrically distributed at the left end and the right end of the motor are fixedly installed at the top end of the bottom plate, rotating rods are rotatably connected inside the two support frames, the two ends of each rotating rod respectively penetrate through and extend to the front surface and the rear surface of the two support frames, a worm wheel is fixedly connected at one end of the rear surface of each support frame, the two worm wheels are respectively meshed with the left end and the right end of the worm, a first connecting rod is fixedly installed at one end of the front surface of each support frame, a buffer component is fixedly installed at one end of each first connecting rod far away from the support frames, and a second, two the positive equal fixed mounting in second connecting rod has the slide bar that runs through empty core post, two the slide bar openly equal fixed mounting have be located two the stopper of empty core post front surface, two the spout has all been seted up to empty core post inside, two the equal fixed mounting in slide bar top has the telescopic link that is located empty core post inside and the other end extends to empty core post outside, two the telescopic link top all with table bottom fixed connection.

Preferably, the two hollow columns and the bottom plate are located on the same horizontal plane, anti-slip sleeves are fixedly mounted at the bottom ends of the two hollow columns, and the anti-slip sleeves are made of rubber.

Preferably, through holes are formed in the two support frames, bearings are fixed in the through holes, and inner rings of the bearings are fixedly connected with the outer rings of the rotating rods.

Preferably, the two buffer assemblies respectively comprise a placing frame, one side of the placing frame, which is opposite to the back, is fixedly connected with the two second connecting rods, the two sides of the placing frame are fixedly provided with springs, and one ends of the springs, which are opposite to each other, are fixedly connected with the two first connecting rods 7 respectively.

Preferably, the diameter of the telescopic rod is smaller than that of the hollow column, and the diameter of the limiting block is larger than that of the sliding chute 12.

Preferably, the two support frames are distributed in central symmetry.

Three beneficial effects

Compared with the prior art, the utility model provides a desk is used in teaching possesses following beneficial effect:

this desk for teaching, drive worm forward through starter motor and rotate, the worm drives two worm wheel forward simultaneously and rotates and makes two bull sticks drive the head rod upwards to rotate, two second connecting rods drive the slide bar and upwards slide and drive the telescopic link and promote the table, reach the purpose of adjusting the table rebound, when the slide bar is close to hollow post center, two second connecting rods extrude the buffering subassembly inwards, the inside spring of buffering subassembly can be adjusted between head rod and the second connecting rod apart from making the slide bar can not take place to block, the setting up of stopper makes the slide bar can not break away from the spout, starter motor reverse rotation makes the worm drive two worm wheel reverse rotations, the worm wheel drives head rod and makes the second connecting rod drive the slide bar and make the telescopic link lapse, thereby reach the mesh that the table adjusted downwards.

Drawings

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

FIG. 2 is an enlarged view of the position A of the present invention;

FIG. 3 is a connection diagram of the rotating rod and the worm wheel of the present invention;

fig. 4 is a connection diagram of the slide rod and the hollow column of the present invention.

In the figure: 1. a base plate; 2. a motor; 3. a worm; 4. a support frame; 5. a rotating rod; 6. a worm gear; 7. a first connecting rod; 8. a buffer assembly; 9. a second connecting rod; 10. a slide bar; 11. a hollow column; 12. a chute; 13. a telescopic rod; 14. a table plate; 15. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a desk for teaching comprises a bottom plate 1 and hollow columns 11 located at the left and right sides of the bottom plate 1, wherein the two hollow columns 11 and the bottom plate 1 are located at the same horizontal plane, the bottom ends of the two hollow columns 11 are both fixedly provided with an anti-slip sleeve made of rubber, the top end of the bottom plate 1 is fixedly provided with a motor 2, the output end of the motor 2 is fixedly provided with a worm 3, the top end of the bottom plate 1 is fixedly provided with two support frames 4 symmetrically distributed at the left and right ends of the motor 2, the two support frames 4 are centrally and symmetrically distributed, the two support frames 4 are both rotatably connected with rotating rods 5, the two support frames 4 are both provided with through holes, bearings are both fixed inside the through holes, the inner rings of the bearings are fixedly connected with the outer rings of the rotating rods 5, the two ends of the two rotating rods 5 respectively penetrate and extend to the front and back surfaces of the, two worm wheels 6 respectively mesh in both ends about worm 3, two bull sticks 5 extend to the equal fixed mounting in positive one end of two support frames 4 have head rod 7, the equal fixed mounting in one end that support frame 4 was kept away from to two head rod 7 has buffering subassembly 8, the equal fixedly connected with second connecting rod 9 of two buffering subassemblies 8 other ends, two buffering subassemblies 8 all are including placing the frame, two place frame back of the body one side mutually respectively with two second connecting rod 9 fixed connection, two place the inside equal fixed mounting in frame have the spring, two relative one ends of spring respectively with two head rod 7 fixed connection, two positive equal fixed mounting in second connecting rod 9 have the slide bar 10 that runs through hollow post 11, two positive equal fixed mounting in slide bar 10 have be located two stopper 15 of hollow post 11 front surfaces, two inside spout 12 of having all seted up of hollow post 11, two equal fixed mounting in slide bar 10 tops are located hollow post 11 inside and the other end extends to hollow post 11 outside The top ends of the two telescopic rods 13 are fixedly connected with the bottom end of the table plate 14, the diameter of each telescopic rod 13 is smaller than that of the hollow column 11, the diameter of each limiting block 15 is larger than that of the corresponding chute 12, the worm 3 is driven to rotate in a forward direction by the starting motor 2, the worm 3 drives the two worm wheels 6 to rotate in a forward direction to enable the two rotating rods 5 to drive the first connecting rod 7 to rotate upwards at the same time, the two second connecting rods 9 drive the sliding rod 10 to slide upwards to drive the telescopic rods 13 to push the table plate 14, so that the aim of adjusting the upward adjustment of the table plate 14 is achieved, when the sliding rod 10 is close to the center of the hollow column 11, the two second connecting rods 9 extrude the buffer assembly 8 inwards, the spring inside the buffer assembly 8 can adjust the distance between the first connecting rod 7 and the second connecting rod 9 to enable the sliding rod 10 not to be blocked, the limiting blocks 15 are arranged to enable the sliding, the worm wheel 6 drives the first connecting rod 7 to drive the second connecting rod 9 to drive the sliding rod 10 to enable the telescopic rod 13 to slide downwards, and therefore the purpose of downwards adjusting the table plate 14 is achieved.

To sum up, in the desk for teaching, the worm 3 is driven to rotate forward by the starting motor 2, the worm 3 drives the two worm gears 6 to rotate forward to drive the two rotating rods 5 to drive the first connecting rod 7 to rotate upward, the two second connecting rods 9 drive the sliding rod 10 to slide upward to drive the telescopic rod 13 to push the desk board 14 upward, so as to achieve the purpose of adjusting the desk board 14 to adjust upward, when the sliding rod 10 is close to the center of the hollow column 11, the two second connecting rods 9 extrude the buffer component 8 inward, the spring inside the buffer component 8 can adjust the distance between the first connecting rod 7 and the second connecting rod 9 so that the sliding rod 10 cannot be blocked, the limiting block 15 is arranged so that the sliding rod 10 cannot be separated from the chute 12, the starting motor 2 rotates reversely to drive the worm 3 to drive the two worm gears 6 to rotate reversely, the worm gears 6 drive the first connecting rod 7 to drive the second connecting rod 9 to drive the sliding rod, thereby achieving the purpose of downward adjustment of the table plate 14.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a desk is used in teaching, includes bottom plate (1) and is located hollow post (11) of bottom plate (1) left and right sides, its characterized in that: the motor (2) is fixedly mounted at the top end of the bottom plate (1), the worm (3) is fixedly mounted at the output end of the motor (2), two support frames (4) which are symmetrically distributed at the left end and the right end of the motor (2) are fixedly mounted at the top end of the bottom plate (1), rotating rods (5) are rotatably connected inside the two support frames (4), the two ends of each rotating rod (5) are respectively penetrated through and extend to the front surface and the rear surface of the two support frames (4), the two rotating rods (5) extend to the two support frames (4), worm wheels (6) are fixedly connected at one ends of the rear surfaces of the two support frames (4), the two worm wheels (6) are respectively meshed with the left end and the right end of the worm (3), first connecting rods (7) are fixedly mounted at one ends of the two rotating rods (5) which extend to the two support frames (4), and buffer assemblies (8) are fixedly mounted at one ends of, two buffer unit (8) the equal fixedly connected with second connecting rod (9) of the other end, two second connecting rod (9) openly equal fixed mounting have slide bar (10) of running through hollow post (11), two slide bar (10) openly equal fixed mounting have be located two stopper (15) of hollow post (11) front surface, two spout (12), two have all been seted up to hollow post (11) inside slide bar (10) top equal fixed mounting have be located hollow post (11) inside and the other end extends to hollow post (11) outside telescopic link (13), two telescopic link (13) top all with table (14) bottom fixed connection.

2. A desk for teaching as claimed in claim 1, wherein: the two hollow columns (11) and the bottom plate (1) are located on the same horizontal plane, anti-skidding sleeves are fixedly mounted at the bottom ends of the two hollow columns (11), and the anti-skidding sleeves are made of rubber.

3. A desk for teaching as claimed in claim 1, wherein: through holes are formed in the two supporting frames (4), bearings are fixed in the through holes, and inner rings of the bearings are fixedly connected with the outer rings of the rotating rods (5).

4. A desk for teaching as claimed in claim 1, wherein: the two buffer assemblies (8) are respectively fixedly connected with the two second connecting rods (9) on the opposite sides of the placing frames, springs are fixedly mounted inside the placing frames, and the opposite ends of the springs are respectively fixedly connected with the two first connecting rods (7).

5. A desk for teaching as claimed in claim 1, wherein: the diameter of the telescopic rod (13) is smaller than that of the hollow column (11), and the diameter of the limiting block (15) is larger than that of the sliding groove (12).

6. A desk for teaching as claimed in claim 1, wherein: the two support frames (4) are distributed in central symmetry.

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