CN114680467B

CN114680467B - Assembled teaching desk convenient for test communication and assembling method

Info

Publication number: CN114680467B
Application number: CN202210404193.1A
Authority: CN
Inventors: 仲伟轩; 徐州; 刘岩; 钱莉莉
Original assignee: Jiangsu Chengxin Teaching Equipment Co ltd
Current assignee: Jiangsu Chengxin Teaching Equipment Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2023-04-18
Anticipated expiration: 2042-04-18
Also published as: CN114680467A

Abstract

The invention provides an assembled teaching desk convenient for test communication and an assembling method, wherein the assembling method comprises the following steps: the backup pad still includes: the utility model discloses a teaching desk, including the cross post, mounting groove, connecting device, table, storage tank, rotor plate, stop device and installation device, two the cross post is installed in the symmetry cooperation between the backup pad, the mounting groove has been seted up to the surface symmetry of backup pad, four connecting device, two are installed in the cooperation between two liang of mounting grooves the top of backup pad is provided with the table, two connecting device all with table slidable mounting, the last surface symmetry fixedly connected with storage tank of table, table upper surface middle part slidable mounting has installation device, this teaching desk accessible rotation rotor plate of assembling of being convenient for experimental interchange carries out the regulation of position and angle to the subject, and the many people of being convenient for carry out the multi-angle observation to the subject, wholly can dismantle into a plurality of parts, be convenient for assemble and dismantle.

Description

Assembled teaching desk convenient for test communication and assembling method

Technical Field

The invention relates to the technical field of teaching aids, in particular to an assembled teaching desk convenient for test communication and an assembling method.

Background

The desk is used by students, starting from the eight-side desk in the earliest school hall, the desks used for schools and the learning of the school hall should be unified into the desk,

the teaching desk that uses in current school's laboratory is not assembling basically and forms, and the cooperation between each part is leading with fixed mounting's mode, is not convenient for assemble and dismantle, in the experimental classroom, often many people are a set of experiments, exchanges the discussion to experimental phenomenon, experimental data and experimental result, need carry out position control to the subject to many people multi-angle in observe, current teaching desk practicality is low, can not make things convenient for the student to operate when using.

Therefore, it is necessary to provide a new teaching desk and a new method for assembling the teaching desk, which are convenient for experimental communication, to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides the assembled teaching desk convenient for test communication and the assembling method.

The invention provides an assembled teaching desk convenient for test communication, which comprises: the backup pad still includes: the utility model discloses a table, mounting groove, connecting device, table, storage tank, rotor plate, stop device and installation device, two the spreader is installed in the symmetry cooperation between the backup pad, the mounting groove has been seted up to the surface symmetry of backup pad, four connecting device, two are installed in the cooperation between two liang of mounting grooves the top of backup pad is provided with the table, two connecting device all with table slidable mounting, the last surface symmetry fixedly connected with storage tank of table, table upper surface middle part slidable mounting has installation device, the top of table is provided with stop device, stop device and installation device slidable mounting, two the rotor plate is installed in the surface rotation of storage tank, the rotor plate rotates the installation with stop device.

Preferably, connecting device includes installation piece, spliced pole, post groove, movable block, cylinder, first spring, T-shaped piece and U-shaped piece, the surface fit of mounting groove installs the installation piece, the fixed surface of installation piece is connected with the cylinder, two be provided with the spliced pole between the installation piece, the post groove has been seted up to the surface symmetry of spliced pole, the sliding surface of post groove is connected with the movable block, the movable block keeps away from the one end fixed connection of installation piece, two with the cylinder all with spliced pole sliding connection, cylindrical surface cover is equipped with first spring, the top symmetry fixedly connected with T-shaped piece of spliced pole, the sliding surface of T-shaped piece installs the U-shaped piece, four the U-shaped piece all is connected with the lower fixed surface of table, plays the connection effect, utilizes the elastic force effect of first spring to make installation piece and mounting groove cooperation installation stable, the holistic equipment of also being convenient for simultaneously.

Preferably, the lower surface of the table is symmetrically and fixedly connected with fixing strips, and initial installation is carried out between the table and the supporting plate in a limiting mode.

Preferably, a limiting groove is formed in the surface of the mounting groove, the mounting block is in sliding insertion with the limiting groove, and the mounting block is used for mounting and limiting the table plate in the up-down direction.

Preferably, the mounting device comprises a positioning block, a sliding plate, an extending edge, a fixing column, a second spring, a vertical plate, a first chute and a first rack, the positioning block is symmetrically and fixedly connected to the upper surface of the table, the sliding block is slidably connected to the surface of the positioning block, the sliding plate is slidably connected to the table, the extending edge is symmetrically and fixedly connected to the surface of the sliding plate, the fixing column is fixedly connected to the surface of the extending edge, the second spring is sleeved on the outer side of the fixing column, the fixing column is slidably connected to the positioning block, the vertical plate is fixedly connected to the surface of the sliding plate, the first chute is formed in the surface of the sliding plate, the sliding plate can be matched with a limiting device, and the mounting and dismounting of the adjusting plate and the rotating plate are facilitated.

Preferably, the table top surface border department symmetry fixedly connected with rectangular block, two the rectangular block all with slide sliding connection, it is spacing to carry out further installation to the slide, stability when guaranteeing that the slide carries out position control.

Preferably, the side surface of the sliding plate is fixedly connected with a handle, so that the sliding plate can be conveniently adjusted in position.

Preferably, stop device includes regulating plate, second chute, rectangular hole, recess, third spring, regulating block, regulation post and second rack, the below of rotor plate is rotated and is installed the regulating plate, the second chute has been seted up to the surface symmetry of regulating plate, first chute and second chute slidable mounting, the rectangular hole has been seted up to the surface symmetry of regulating plate, riser and rectangular hole cooperation installation, the regulating plate surface is located the rectangular hole side-opening and is equipped with the recess, the fixed surface of recess is connected with the third spring, the one end fixedly connected with regulating block of third spring, the fixed surface of regulating block is connected with the regulation post, two the regulation post all with regulating plate sliding connection, the one end fixedly connected with second rack of regulating block is kept away from to the regulation post, can install spacing to the regulating plate, guarantees the stability of rotor plate and regulating plate installation.

Preferably, the surface symmetry of backup pad has seted up the spread groove, two the spread groove all with the spreader sliding plug, guarantees holistic structural strength.

The invention also provides a method for assembling the assembled teaching desk convenient for test communication, which comprises the following steps:

1) The table is arranged above the two supporting plates and is in surface contact with the two supporting plates, initial placing and positioning are carried out by the contact of the two fixing strips and the surfaces of the supporting plates, the initial state of a first spring is a compressed state, the reaction force generated by the compression of the first spring acts on the surface of a movable block, the two mounting blocks are pulled simultaneously to drive a cylinder and the movable block to move towards the direction of further compressing the first spring, the mounting block is attached to the surface of a mounting groove, a T-shaped block is inserted with a U-shaped block in a sliding mode at the same time, the table is mounted and limited, hands are loosened slowly, the mounting block is tightly matched with the mounting groove under the action of the elastic force of the first spring, the mounting block is tightly matched with a limiting groove, the mounting stability of connecting columns is guaranteed, and the mounting of the two connecting columns is finished in sequence;

2) Stir two regulating blocks, drive regulation post and second rack and remove, the third spring is compressed, from top to bottom rotor plate and regulating plate, first chute and second chute surface contact, and produce the relative slip, this moment, two slides move towards the direction of keeping away from each other, the second spring is compressed, until regulating plate and locating piece surface contact, at this in-process, produce the relative slip between rectangular hole and the riser, riser and first rack are close to towards the second rack gradually, when regulating plate and locating piece surface contact, slowly loosen the regulating block, under third spring elastic force effect, second rack and first rack meshing, and then it is spacing to install the regulating plate, guarantee the stability of rotor plate installation, accomplish holistic installation.

Compared with the related technology, the assembled teaching desk convenient for test communication and the assembling method provided by the invention have the following beneficial effects:

the invention provides a table which is characterized in that two transverse columns are arranged between two supporting plates and are in sliding insertion connection with connecting grooves to complete initial installation and positioning, a table plate is arranged above the two supporting plates and is in surface contact with the two supporting plates, initial placement and positioning are carried out through the contact of two fixing strips and the surfaces of the supporting plates, the initial state of a first spring is a compressed state, the reaction force generated by the compression of the first spring acts on the surface of a movable block, two installation blocks are pulled simultaneously to drive a cylinder and the movable block to move towards the direction of further compressing the first spring, the installation block is tightly attached to the surface of an installation groove, a T-shaped block is in sliding insertion connection with a U-shaped block to install and limit the table plate, the hand is slowly loosened, the installation block is tightly matched with the installation groove under the action of the elastic force of the first spring, the installation block is tightly matched with a limiting groove to ensure that connecting columns are stably installed, and the installation of the two connecting columns is sequentially completed; the two adjusting blocks are shifted to drive the adjusting column and the second rack to move, the third spring is compressed to enable the rotating plate and the adjusting plate to be from top to bottom, the first chute is in surface contact with the second chute and generates relative sliding, at the moment, the two sliding plates move towards the direction away from each other, the second spring is compressed until the adjusting plate is in surface contact with the positioning block, in the process, relative sliding is generated between the rectangular hole and the vertical plate, the vertical plate and the first rack gradually approach towards the second rack, when the adjusting plate is in surface contact with the positioning block, the adjusting blocks are slowly loosened, and under the elastic force action of the third spring, the second rack is meshed with the first rack, so that the adjusting plate is mounted and limited, the mounting stability of the rotating plate is guaranteed, and integral mounting is completed; arrange the laboratory object in the surface of rotor plate, the accessible rotates the rotor plate and carries out the regulation of position and angle to the laboratory object, and is convenient for many people carry out the multi-angle observation to the laboratory object, wholly can dismantle into a plurality of parts, is convenient for assemble and dismantle.

Drawings

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a schematic view of a connecting device according to the present invention;

FIG. 3 is a schematic view of a connecting groove structure provided in the present invention;

FIG. 4 is a schematic view of a spacing groove structure according to the present invention;

FIG. 5 is a schematic view of a mounting device according to the present invention;

FIG. 6 is a schematic view of a regulating plate according to the present invention;

FIG. 7 is a schematic view of a structure of a position limiting device according to the present invention;

fig. 8 is a second schematic structural diagram of the mounting device provided by the present invention.

The reference numbers in the figures: 1. a support plate; 2. a cross post; 3. mounting grooves; 4. a connecting device; 5. a table plate; 6. a storage box; 7. a rotating plate; 8. a limiting device; 9. mounting means; 10. mounting blocks; 11. connecting columns; 12. a column groove; 13. a movable block; 14. a cylinder; 15. a first spring; 16. a T-shaped block; 17. a U-shaped block; 18. a fixing strip; 19. a limiting groove; 20. positioning blocks; 21. a slide plate; 22. edge extension; 23. fixing the column; 24. a second spring; 25. a vertical plate; 26. a first chute; 27. a first rack; 28. a rectangular block; 29. a handle; 30. an adjusting plate; 31. a second chute; 32. a rectangular hole; 33. a groove; 34. a third spring; 35. an adjusting block; 36. an adjustment column; 37. a second rack; 38. and connecting the grooves.

Detailed Description

The invention is further described below with reference to the drawings and the embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic diagram of an overall structure provided by the present invention; FIG. 2 is a schematic view of a connecting device according to the present invention; FIG. 3 is a schematic view of a connecting groove structure provided in the present invention; FIG. 4 is a schematic view of a structure of a limiting groove according to the present invention; FIG. 5 is a schematic view of a mounting device according to the present invention; FIG. 6 is a schematic view of an adjusting plate according to the present invention; FIG. 7 is a schematic structural view of a position limiting device according to the present invention;

In a specific implementation process, as shown in fig. 1, 4 and 3, an assembled teaching desk convenient for test communication includes: the support plate 1 further includes: spreader 2, mounting groove 3, connecting device 4, table 5, storage tank 6, rotor plate 7, stop device 8 and installation device 9, two the spreader 2 is installed in the symmetry cooperation between the backup pad 1, mounting groove 3 has been seted up to the surface symmetry of backup pad 1, four connecting device 4, two are installed in the 3 cooperation between two liang of mounting groove 3 the top of backup pad 1 is provided with table 5, two connecting device 4 all with table 5 slidable mounting, the last surface symmetry fixedly connected with storage tank 6 of table 5, table 5 upper surface middle part slidable mounting has installation device 9, the top of table 5 is provided with stop device 8, stop device 8 and installation device 9 slidable mounting, two the surface rotation of storage tank 6 installs rotor plate 7, rotor plate 7 rotates the installation with stop device 8.

As shown in fig. 1, 2 and 3, the connecting device 4 includes an installation block 10, a connection column 11, a column groove 12, a movable block 13, a cylinder 14, a first spring 15, a T-shaped block 16 and a U-shaped block 17, the installation block 10 is installed in the surface of the installation groove 3 in a matched manner, the surface of the installation block 10 is fixedly connected with the cylinder 14, two connection columns 11 are arranged between the installation blocks 10, the column groove 12 is symmetrically formed in the surface of the connection column 11, the movable block 13 is connected to the surface of the column groove 12 in a sliding manner, the movable block 13 is fixedly connected with one end, far away from the installation block 10, of the cylinder 14, two cylinders 14 are both connected with the connection column 11 in a sliding manner, the surface of each cylinder 14 is sleeved with the first spring 15, the T-shaped block 16 is symmetrically and fixedly connected to the upper portion of the connection column 11, the U17 is installed in the surface of the T-shaped block 16 in a sliding manner, and four U-shaped blocks 17 are both fixedly connected with the lower surface of the table 5, so as to play a connecting role, the elastic effect of the installation block 10 and the installation groove 3 are stably installed in a matched manner by using the elastic effect of the first spring 15, and the installation block is also convenient for overall assembly.

As shown in fig. 3, the fixing strips 18 are symmetrically and fixedly connected to the lower surface of the table 5, and perform initial installation limit on the installation between the table 5 and the supporting plate 1.

As shown in fig. 4, a limiting groove 19 is formed on the surface of the mounting groove 3, and the mounting block 10 is slidably inserted into the limiting groove 19 to vertically mount and limit the table 5.

As shown in fig. 5, 4, 7, 8 and 6, the mounting device 9 includes a positioning block 20, a sliding plate 21, an extending edge 22, a fixing column 23, a second spring 24, a vertical plate 25, a first inclined groove 26 and a first rack 27, the positioning block 20 is symmetrically and fixedly connected to the upper surface of the table 5, the sliding plate 21 is slidably connected to the surface of the positioning block 20, both the sliding plates 21 are slidably connected to the table 5, the extending edge 22 is symmetrically and fixedly connected to the surface of the sliding plate 21, the fixing column 23 is fixedly connected to the surface of the extending edge 22, the second spring 24 is sleeved on the outer side of the fixing column 23, both the fixing columns 23 are slidably connected to the positioning block 20, the vertical plate 25 is fixedly connected to one end of the surface of the sliding plate 21 close to the extending edge 22, the first rack 27 is fixedly connected to the surface of the vertical plate 25, the first inclined groove 26 is formed on the surface of the sliding plate 21, and can be matched with the limiting device 8, so as to facilitate mounting and dismounting of the adjusting plate 30 and the rotating plate 7.

As shown in fig. 6, 4 and 8, rectangular blocks 28 are symmetrically and fixedly connected to the edge of the upper surface of the table 5, and both the rectangular blocks 28 are slidably connected to the sliding plate 21, so that the sliding plate 21 is further mounted and limited, and the stability of the sliding plate 21 during position adjustment is ensured.

As shown in fig. 1 and 4, a handle 29 is fixedly connected to a side surface of the sliding plate 21, so that the sliding plate 21 can be adjusted in position.

As shown in fig. 6, 7 and 8, stop device 8 includes regulating plate 30, second chute 31, rectangular hole 32, recess 33, third spring 34, regulating block 35, regulation post 36 and second rack 37, regulating plate 30 is installed in the rotation of the below of regulating plate 7, second chute 31 has been seted up to regulating plate 30's surface symmetry, first chute 26 and second chute 31 slidable mounting, rectangular hole 32 has been seted up to regulating plate 30's surface symmetry, riser 25 and rectangular hole 32 cooperation installation, regulating plate 30 surface lies in rectangular hole 32 side-opening and is equipped with recess 33, the fixed surface of recess 33 is connected with third spring 34, the one end fixedly connected with regulating block 35 of third spring 34, the fixed surface of regulating block 35 is connected with the regulation post 36, two regulating post 36 all with regulating plate 30 sliding connection, the one end fixedly connected with second rack 37 that regulating block 35 is kept away from to regulating post 36 can install spacing regulating plate 30, guarantees the stability that regulating plate 7 and regulating plate 30 installed.

As shown in fig. 3, the surface of the supporting plate 1 is symmetrically provided with two connecting grooves 38, and the two connecting grooves 38 are slidably inserted into the cross column 2, so as to ensure the overall structural strength.

1) Placing two transverse columns 2 between two supporting plates 1, and performing sliding insertion with a connecting groove 38 to complete initial installation and positioning, placing a table plate 5 above the two supporting plates 1, and making surface contact with the two supporting plates 1, and performing initial placement and positioning through surface contact of two fixing strips 18 and the supporting plates 1, wherein the initial state of a first spring 15 is a compressed state, a reaction force generated by compression of the first spring 15 acts on the surface of a movable block 13, and simultaneously pulling two installation blocks 10 to drive a cylinder 14 and the movable block 13 to move towards the direction of further compressing the first spring 15, so that the installation blocks 10 are tightly attached to the surface of an installation groove 3, meanwhile, a T-shaped block 16 is in sliding insertion with a U-shaped block 17 to install and limit the table plate 5, slowly releasing hands, under the elastic force action of the first spring 15, the installation blocks 10 are tightly matched with the installation groove 3, the installation blocks 10 are tightly matched with a limiting groove 19 to ensure that the connection columns 11 are stably installed, and sequentially completing installation of the two connection columns 11;

2) The two adjusting blocks 35 are shifted to drive the adjusting columns 36 and the second racks 37 to move, the third springs 34 are compressed to enable the rotating plate 7 and the adjusting plate 30 to be from top to bottom, the first inclined grooves 26 are in surface contact with the second inclined grooves 31 and generate relative sliding, at the moment, the two sliding plates 21 move towards the direction away from each other, the second springs 24 are compressed until the adjusting plate 30 is in surface contact with the positioning blocks 20, in the process, the relative sliding is generated between the rectangular holes 32 and the vertical plates 25, the vertical plates 25 and the first racks 27 gradually approach towards the second racks 37, when the adjusting plate 30 is in surface contact with the positioning blocks 20, the adjusting blocks 35 are slowly loosened, the second racks 37 are meshed with the first racks 27 under the elastic force action of the third springs 34, the adjusting plate 30 is installed and limited, the installation stability of the rotating plate 7 is guaranteed, and the whole installation is completed.

The working principle is as follows: placing two transverse columns 2 between two supporting plates 1, and performing sliding insertion with a connecting groove 38 to complete initial installation and positioning, placing a table plate 5 above the two supporting plates 1, and making surface contact with the two supporting plates 1, and performing initial placement and positioning through surface contact of two fixing strips 18 and the supporting plates 1, wherein the initial state of a first spring 15 is a compressed state, a reaction force generated by compression of the first spring 15 acts on the surface of a movable block 13, and simultaneously pulling two installation blocks 10 to drive a cylinder 14 and the movable block 13 to move towards the direction of further compressing the first spring 15, so that the installation blocks 10 are tightly attached to the surface of an installation groove 3, meanwhile, a T-shaped block 16 is in sliding insertion with a U-shaped block 17 to install and limit the table plate 5, slowly releasing hands, under the elastic force action of the first spring 15, the installation blocks 10 are tightly matched with the installation groove 3, the installation blocks 10 are tightly matched with a limiting groove 19 to ensure that the connection columns 11 are stably installed, and sequentially completing installation of the two connection columns 11; the two adjusting blocks 35 are shifted to drive the adjusting columns 36 and the second racks 37 to move, the third springs 34 are compressed to enable the rotating plate 7 and the adjusting plate 30 to be from top to bottom, the first inclined grooves 26 are in surface contact with the second inclined grooves 31 and generate relative sliding, at the moment, the two sliding plates 21 move towards the directions away from each other, the second springs 24 are compressed until the adjusting plate 30 is in surface contact with the positioning blocks 20, in the process, the relative sliding is generated between the rectangular holes 32 and the vertical plates 25, the vertical plates 25 and the first racks 27 gradually approach towards the second racks 37, when the adjusting plate 30 is in surface contact with the positioning blocks 20, the adjusting blocks 35 are slowly loosened, and under the elastic force of the third springs 34, the second racks 37 are meshed with the first racks 27, so that the adjusting plate 30 is installed and limited, the installation stability of the rotating plate 7 is guaranteed, and the whole installation is completed; when dismantling, only need stir regulating block 35, make first rack 27 and the separation of second rack 37, under second spring 24 spring action, rotor plate 7 and regulating plate 30 move up, accomplish the dismantlement of rotor plate 7, stir two movable blocks 13 simultaneously, make installation piece 10 and mounting groove 3 and spacing groove 19 separation, take off spliced pole 11, T-shaped piece 16 and the separation of U-shaped piece 17, take off table 5, can accomplish whole dismantlement with the separation of spreader 2 and backup pad 1 again, wholly can dismantle into a plurality of parts, be convenient for assemble and dismantle, avoid the fixed mounting between a plurality of parts.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a teaching desk can be assembled convenient to experimental interchange, includes: support plate (1), characterized in that, still include: the device comprises transverse columns (2), mounting grooves (3), connecting devices (4), table plates (5), storage boxes (6), rotating plates (7), limiting devices (8) and mounting devices (9), wherein the transverse columns (2) are symmetrically mounted between two supporting plates (1) in a matched mode, the mounting grooves (3) are symmetrically formed in the surfaces of the supporting plates (1), the connecting devices (4) are mounted between every two mounting grooves (3) in a matched mode, the table plates (5) are arranged above the two supporting plates (1), the two connecting devices (4) are slidably mounted with the table plates (5), the storage boxes (6) are symmetrically and fixedly connected to the upper surfaces of the table plates (5), the mounting devices (9) are slidably mounted in the middle of the upper surfaces of the table plates (5), the limiting devices (8) are arranged above the table plates (5), the limiting devices (8) are slidably mounted with the mounting devices (9), the rotating plates (7) are rotatably mounted on the surfaces of the two storage boxes (6), and the rotating plates (7) are rotatably mounted with the limiting devices (8);

the connecting device (4) comprises mounting blocks (10), connecting columns (11), column grooves (12), movable blocks (13), cylinders (14), first springs (15), T-shaped blocks (16) and U-shaped blocks (17), the mounting blocks (10) are mounted on the surfaces of the mounting grooves (3) in a matched mode, the cylinders (14) are fixedly connected to the surfaces of the mounting blocks (10), the connecting columns (11) are arranged between the two mounting blocks (10), the column grooves (12) are symmetrically formed in the surfaces of the connecting columns (11), the movable blocks (13) are connected to the surfaces of the column grooves (12) in a sliding mode, the movable blocks (13) and the cylinders (14) are fixedly connected to the ends, far away from the mounting blocks (10), the cylinders (14) are both connected with the connecting columns (11) in a sliding mode, the first springs (15) are sleeved on the surfaces of the cylinders (14), the T-shaped blocks (16) are fixedly connected to the upper portions of the column grooves (12) in a symmetrical mode, the surfaces of the T-shaped blocks (16) are fixedly connected to the T-shaped blocks (17) in a sliding mode, and the four U-shaped blocks (17) are fixedly connected to the lower surfaces of the table plate (5);

the mounting device (9) comprises a positioning block (20), a sliding plate (21), an extending edge (22), fixing columns (23), a second spring (24), a vertical plate (25), a first inclined groove (26) and a first rack (27), wherein the positioning block (20) is symmetrically and fixedly connected to the upper surface of the table plate (5), the sliding plate (21) is slidably connected to the surface of the positioning block (20), the two sliding plates (21) are slidably connected to the table plate (5), the extending edge (22) is symmetrically and fixedly connected to the surface of the sliding plate (21), the fixing columns (23) are fixedly connected to the surface of the extending edge (22), the second spring (24) is sleeved on the outer sides of the fixing columns (23), the two fixing columns (23) are slidably connected to the positioning block (20), the vertical plate (25) is fixedly connected to one end, close to the extending edge (22), of the surface of the sliding plate (21), the first rack (27) is fixedly connected to the surface of the vertical plate (25), and the first inclined groove (26) is formed in the surface of the sliding plate (21);

stop device (8) are including regulating plate (30), second chute (31), rectangular hole (32), recess (33), third spring (34), regulating block (35), regulation post (36) and second rack (37), regulating plate (30) have been installed in the below rotation of regulating plate (7), second chute (31) have been seted up to the surface symmetry of regulating plate (30), first chute (26) and second chute (31) slidable mounting, rectangular hole (32) have been seted up to the surface symmetry of regulating plate (30), riser (25) and rectangular hole (32) cooperation installation, regulating plate (30) surface is located rectangular hole (32) and aside to open and be equipped with recess (33), the fixed surface of recess (33) is connected with third spring (34), the one end fixedly connected with regulating block (35) of third spring (34), the fixed surface of regulating block (35) is connected with regulation post (36), two regulation post (36) all with regulating plate (30) sliding connection, the one end fixedly connected with second rack (37) of regulating block (35) are kept away from to regulation post (36).

2. The assembling teaching desk convenient for experimental communication as claimed in claim 1, wherein the lower surface of the desk plate (5) is symmetrically and fixedly connected with fixing strips (18).

3. The assembled teaching desk convenient for test communication as claimed in claim 1, wherein a limiting groove (19) is formed on the surface of the mounting groove (3), and the mounting block (10) is slidably inserted into the limiting groove (19).

4. The assembling teaching desk convenient for test communication according to claim 1, wherein rectangular blocks (28) are symmetrically and fixedly connected to the edge of the upper surface of the desk plate (5), and both rectangular blocks (28) are slidably connected with the sliding plate (21).

5. The assembling teaching desk convenient for test communication according to claim 1, wherein a handle (29) is fixedly connected to the side surface of the sliding plate (21).

6. The assembled teaching desk convenient for experimental communication as claimed in claim 1, wherein the support plate (1) is symmetrically provided with connecting grooves (38) on the surface, and both connecting grooves (38) are slidably inserted into the cross column (2).