CN210300013U

CN210300013U - College english teaching is with retractable lectern

Info

Publication number: CN210300013U
Application number: CN201920965251.1U
Authority: CN
Inventors: 张丽; 刘研
Original assignee: HARBIN INSTITUTE OF PETROLEUM
Current assignee: HARBIN INSTITUTE OF PETROLEUM
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-04-14
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a college english teaching is with retractable lectern, including the table body, supplementary leg, fixed plate and crank, the supporting leg is installed to the lower terminal surface of the table body, the outside cover of loose axle is equipped with the gear, and the avris of gear is provided with the rack, the avris of rack is connected with first extension board and second extension board, supplementary leg is installed at the lower terminal surface of first extension board, the fixed plate sets up the avris at the table body, the inboard that leads to the groove is provided with the cleaning block, and the inside of leading to the groove runs through there is the adjustable shelf, the blank is installed to the inboard of adjustable shelf, the both ends of fixed plate are provided with the regulation pole, and the outside cover of adjusting the pole is equipped with the cover stock. This college english teaching is with retractable lectern can receive and release the operation to the lectern according to the user demand, and then adjusts user's operating area size to write and carry out fine unity with the lectern, both make things convenient for teacher's writing, also make things convenient for looking over of learner, can promote the learning effect.

Description

College english teaching is with retractable lectern

Technical Field

The utility model relates to an english teaching technical field specifically is a college english teaching is with retractable lectern.

Background

At present, english is more and more common in daily life, and in english teaching process, in order to make the learner better receive education to and the teacher uses more conveniently, also be particularly important to the design of english lectern, however current lectern for english teaching has following shortcoming in the use:

most are simple fixed desk, can't receive and release the size of adjusting operation area to the lectern according to the user demand to do not write and carry out fine unity with the lectern, traditional teaching mode is neither convenient teacher's writing, also is convenient for learner's looking over, to above-mentioned problem, the urgent need carries out innovative design on the basis of original lectern for english teaching.

Disclosure of Invention

An object of the utility model is to provide a college english teaching is with retractable lectern to solve above-mentioned background art and propose most for simple fixed desk, can't receive and release the size of adjusting the operating area to the lectern according to the user demand, and not will write and carry out fine unity with the lectern, traditional teaching mode is neither convenient for teacher's writing, also is convenient for the problem of learner's the looking over.

In order to achieve the above object, the utility model provides a following technical scheme: a retractable teacher's desk for college English teaching comprises a desk body, auxiliary legs, a fixing plate and a crank, wherein supporting legs are installed on the lower end face of the desk body, movable shafts are arranged inside the desk body, gears are sleeved on the outer sides of the movable shafts, racks are arranged on the lateral sides of the gears, the lateral sides of the racks are connected with a first extending plate and a second extending plate, a storage cavity is reserved inside the first extending plate, the auxiliary legs are installed on the lower end face of the first extending plate, idler wheels are connected to the bottoms of the auxiliary legs, the fixing plate is arranged on the lateral side of the desk body, a through groove is formed in the fixing plate, a cleaning block is arranged on the inner side of the through groove, a movable frame penetrates through the inside of the through groove, a white plate is installed on the inner side of the movable frame, connecting shafts are arranged on two sides of the white plate, anti-skid rings are pasted on the outer sides of, and the outside cover of adjusting the pole is equipped with the cover piece to the top of adjusting the pole is fixed with the crank.

Preferably, the racks are symmetrically distributed about the central axis of the gear, and 2 racks are in meshed connection with the gear.

Preferably, the first extension plate and the second extension plate form a sliding structure with the table body, and the length and width of the storage cavity in the first extension plate and the second extension plate are equal to the length and width of the rack.

Preferably, the whiteboard passes through connecting axle and adjustable shelf constitution flip structure, and adjustable shelf and fixed plate constitution elevation structure to whiteboard and clean piece are laminated each other.

Preferably, the adjusting rods are symmetrically arranged about the movable frame in 2 numbers, one of the adjusting rods is in threaded connection with the sleeve block, and the other adjusting rod is in sliding connection with the sleeve block.

Compared with the prior art, the beneficial effects of the utility model are that: the retractable teacher desk for college English teaching can perform retraction and release operation on the teacher desk according to use requirements, so that the operation area of a user can be adjusted, writing and the teacher desk can be well unified, the teacher can conveniently write, a learner can conveniently check the writing, and the learning effect can be improved;

1. by arranging the gear, the rack and the extension plates, one of the extension plates can be pulled to drive the gear to rotate through the rack, so that the other extension plate can be driven to synchronously unfold or store, and the purpose of changing the operation area is achieved;

2. through setting up adjustable shelf, blank, adjusting pole and lagging, can drive the adjustable shelf through the lagging and be elevating movement when rotating the regulation pole, make things convenient for the use of blank and accomodate to the blank can contact with clean piece at the in-process that goes up and down, consequently has the effect of cleaning to the characters of writing, and the blank passes through the connecting axle simultaneously and can overturn, and the convenience is to the use of different faces.

Drawings

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

FIG. 2 is a schematic top view of the cross-sectional structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 4 is an enlarged schematic structural diagram of the point B in fig. 2 according to the present invention.

In the figure: 1. a table body; 2. supporting legs; 3. a movable shaft; 4. a gear; 5. a rack; 6. a first extension plate; 7. a second extension plate; 8. a storage cavity; 9. an auxiliary leg; 10. a roller; 11. a fixing plate; 12. a through groove; 13. a cleaning block; 14. a movable frame; 15. a white board; 16. a connecting shaft; 17. an anti-slip ring; 18. adjusting a rod; 19. sleeving blocks; 20. a crank handle.

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, the present invention provides a technical solution: a retractable teacher's desk for college English teaching comprises a desk body 1, supporting legs 2, movable shafts 3, gears 4, racks 5, a first extending plate 6, a second extending plate 7, a storage cavity 8, auxiliary legs 9, idler wheels 10, a fixing plate 11, a through groove 12, a cleaning block 13, a movable frame 14, a white board 15, a connecting shaft 16, an anti-slip ring 17, an adjusting rod 18, a sleeve block 19 and a crank 20, wherein the supporting legs 2 are installed on the lower end face of the desk body 1, the movable shafts 3 are arranged inside the desk body 1, the gears 4 are sleeved on the outer sides of the movable shafts 3, racks 5 are arranged on the side sides of the gears 4, the first extending plate 6 and the second extending plate 7 are connected to the side of each rack 5, the storage cavity 8 is reserved inside the first extending plate 6, the auxiliary legs 9 are installed on the lower end face of the first extending plate 6, the idler wheels 10 are connected to the bottoms of the auxiliary legs 9, the fixing plate 11 is arranged on the side, a through groove 12 is formed in the fixed plate 11, a cleaning block 13 is arranged on the inner side of the through groove 12, a movable frame 14 penetrates through the through groove 12, a white plate 15 is arranged on the inner side of the movable frame 14, connecting shafts 16 are arranged on two sides of the white plate 15, anti-skid rings 17 are adhered to the outer sides of the connecting shafts 16, adjusting rods 18 are arranged at two ends of the fixed plate 11, sleeve blocks 19 are sleeved on the outer sides of the adjusting rods 18, and a crank 20 is fixed at the top of each adjusting rod 18;

the racks 5 are symmetrically distributed about the central axis of the

gear

4, 2 racks 5 are meshed with the gear 4, the first extension plate 6 and the second extension plate 7 form a sliding structure with the desk body 1, the length and the width of the storage cavities 8 in the first extension plate 6 and the second extension plate 7 are equal to the length and the width of the racks 5, the gear 4 can be driven to rotate through the racks 5 when the first extension plate 6 is pulled, and then the other rack 5 is driven to move, so that the second extension plate 7 can move synchronously along with the first extension plate 6, the operation area of the whole teaching desk can be increased, and when the first extension plate 6 and the second extension plate 7 are folded, the racks 5 on the first extension plate and the second extension plate can be stored in the storage cavities 8 in the other side;

whiteboard 15 passes through connecting axle 16 and adjustable shelf 14 and constitutes flip structure, and adjustable shelf 14 and fixed plate 11 constitute elevation structure, and whiteboard 15 and clean piece 13 laminate each other, it is provided with 2 about adjustable shelf 14 symmetry to adjust pole 18, and one of them adjusts pole 18 and cover block 19 is threaded connection, and another regulation pole 18 and cover block 19 are sliding connection, can drive adjustable shelf 14 through cover block 19 when adjusting pole 18 to rotate and go up and down in logical groove 12, the operation of writing on whiteboard 15 is convenient, whiteboard 15 can overturn on adjustable shelf 14, the convenient operation to whiteboard 15 different faces, can clean its characters of writing through clean piece 13 when whiteboard 15 goes up and down simultaneously.

The working principle is as follows: when the retractable teacher's desk for college English teaching is used, as shown in fig. 1-2, when the operation area needs to be increased, the first extension plate 6 is pulled outwards, as shown in fig. 2, the gear 4 is driven to rotate on the movable shaft 3 through the rack 5, and then the other rack 5 is driven to move, so that the second extension plate 7 can move synchronously with the first extension plate 6, the roller 10 is driven to slide on the ground through the auxiliary leg 9 during moving, a good auxiliary unfolding effect is achieved, the operation area of the whole teacher's desk can be increased, and when the first extension plate 6 and the second extension plate 7 are folded, the racks 5 on the two can be accommodated in the accommodating cavity 8 in the opposite side, and a large area can not be occupied, so that the operation area is convenient to accommodate;

as shown in fig. 1-4, a user rotates the crank 20 to drive one of the adjusting rods 18 to rotate, and then drives the movable frame 14 to move up and down in the through slot 12 through the sleeve 19 in threaded connection with the crank, and simultaneously the other sleeve 19 slides on the other adjusting rod 18, so that the lifting stability of the movable frame 14 is increased, and thus the movable frame 14 moves up and down to drive the white board 15 to move up and down, which is convenient for a teacher to write, as shown in fig. 3, the white board 15 can rotate on the movable frame 14 through the connecting shaft 16, and the white board 15 can be rotated to different sides for writing operation, because the anti-slip ring 17 increases the rotating resistance of the connecting shaft 16, the white board 15 is prevented from shaking randomly, as shown in fig. 4, the adjusting rod 18 is rotated after the white board 15 is used, the movable frame 14 drives the white board 15 to move down, and the white board 15 can contact with the cleaning block 13, the convenience of the operation of the user is improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a college english teaching is with retractable lectern, includes the table body (1), supplementary leg (9), fixed plate (11) and crank (20), its characterized in that: the supporting legs (2) are installed on the lower end face of the table body (1), the movable shaft (3) is arranged inside the table body (1), the gear (4) is sleeved on the outer side of the movable shaft (3), the rack (5) is arranged on the side of the gear (4), the side of the rack (5) is connected with a first extending plate (6) and a second extending plate (7), an object placing cavity (8) is reserved inside the first extending plate (6), the auxiliary legs (9) are installed on the lower end face of the first extending plate (6), the bottom of the auxiliary legs (9) is connected with rollers (10), the fixing plate (11) is arranged on the table body (1), the through grooves (12) are formed in the fixing plate (11), the cleaning blocks (13) are arranged on the inner side of the through grooves (12), the movable frame (14) penetrates through the inner side of the through grooves (12), and the white board (15) is installed on the inner side of the movable frame (14), and connecting shafts (16) are arranged on two sides of the white board (15), anti-skid rings (17) are adhered to the outer sides of the connecting shafts (16), adjusting rods (18) are arranged at two ends of the fixing plate (11), sleeve blocks (19) are sleeved on the outer sides of the adjusting rods (18), and crank handles (20) are fixed to the tops of the adjusting rods (18).

2. The retractable teacher desk for college English teaching according to claim 1, wherein: the racks (5) are symmetrically distributed about the central axis of the gear (4), and the 2 racks (5) are all in meshed connection with the gear (4).

3. The retractable teacher desk for college English teaching according to claim 1, wherein: first extension board (6) and second extension board (7) all constitute sliding construction with the table body (1), and the length and width of first extension board (6) and second extension board (7) built-in thing chamber (8) equals the length and width of rack (5).

4. The retractable teacher desk for college English teaching according to claim 1, wherein: whiteboard (15) constitute flip structure through connecting axle (16) and adjustable shelf (14), and adjustable shelf (14) and fixed plate (11) constitute elevation structure to whiteboard (15) and clean piece (13) are laminated each other.

5. The retractable teacher desk for college English teaching according to claim 1, wherein: the adjusting rods (18) are symmetrically arranged in 2 relative to the movable frame (14), one adjusting rod (18) is in threaded connection with the sleeve block (19), and the other adjusting rod (18) is in sliding connection with the sleeve block (19).