CN204599807U - A kind of study table that automatically can regulate tabletop angles and height - Google Patents

Abstract

The utility model belongs to Students ' Learning table technical field, is specifically related to a kind of study table that automatically can regulate tabletop angles and height.Technical scheme is: be made up of desktop micro-adjusting mechanism, two elevating mechanisms and regulable control module three part; Described desktop micro-adjusting mechanism is arranged on above elevating mechanism, and described regulable control module installation is below elevating mechanism and be a plane with base plate, and between two chute table legs.The study table that automatically can regulate tabletop angles and height of the present utility model, can simultaneously rotating, realizes the lifting of desktop.Therefore, compared with prior art, it is simple that the utility model has structure, and security is high, and cost performance is high, wide market, is applicable to the advantages such as the raw use of regular primary and secondary schools.

Description

A learning table capable of automatically adjusting the angle and height of the desktop

technical field

The utility model belongs to the technical field of student learning tables, in particular to a learning table that can automatically adjust the angle and height of the desktop.

Background technique

The study table is a necessity for the daily study of primary and middle school students. The height of primary and middle school students continues to grow, and ordinary non-liftable student study desks cannot adapt to students with growing heights, and most of the desktops of ordinary study desks are fixed horizontally. 1. When reading, it is very easy to cause myopia, back bending and deformation, cervical spondylosis, etc., and if students do not change the study table suitable for their height in time, it will also lead to incorrect sitting posture, myopia, hunchback and other problems. Serious consequences for future growth. At present, there are few learning desks for students on the market, and most of them are manual lifting and manual desktop angle learning desks, which are time-consuming and laborious for students to use; even learning desks with the function of automatically adjusting the desktop angle and height are also complicated in structure. The high cost is not conducive to popularization and application.

For example, the application number is the automatic lifting table of 201220345107.6. Its lifting mechanism includes a fixed frame, a screw rod, a gear set and a motor that provides power drive. A transmission rod that is respectively perpendicular to the two screw rods is arranged between the two lifting mechanisms. The transmission rods are respectively connected to the gear sets of the two lifting mechanisms. The motor drives the screw rod connected to it to rotate through one of the gear sets, and at the same time drives the transmission rod to rotate to drive the other gear set to rotate, thereby driving the other screw rod to rotate synchronously, thereby realizing lifting Function. But the relatively heavy parts such as motor, gear set, transmission rod, screw mandrel of this kind of lifting table are lifted together with desktop, will make the center of gravity move up and down with lifting table like this, cause the instability of desktop.

An office automatic lifting table with application number 201120028281.7, its lifting mechanism includes a turbine variable speed power mechanism and a screw auxiliary lifting mechanism. The turbo variable speed power mechanism includes a worm head motor, a motor fixing seat, a plastic turbine, a main shaft, a main synchronous wheel, a rolling bearing and a case cover. The worm head motor is fixed on the lower side of the beam through the motor fixing seat, and the main shaft is fixedly connected to the lower side of the beam through a rolling bearing. The lower end of the main shaft is fixed with a plastic turbine driven by a worm head motor, and the upper end of the main shaft on the beam upper side is fixed with a main synchronous wheel, which drives the synchronous wheel on the helical auxiliary lifting mechanism to rotate through a synchronous conveyor belt. The turbine variable speed power mechanism and the spiral auxiliary lifting mechanism in each table leg are linked through a synchronous conveyor belt. Through the synchronous conveyor belt, the turbine variable speed power mechanism drives the spiral auxiliary lifting mechanism in each table leg to lift up and down at the same time, driving the table frame. The desktop rises or falls by a certain height. This office automatic lifting desk has complex structure and high cost, and is not suitable for ordinary primary and middle school students to use.

The desktop angle adjustment device with application number 201020171762.5 has a retaining block at one end of the control rod, and the other end is fixed under the desktop through a fixing piece. A chute with several counterbores is provided on the support rod, and its retaining block is buckled with any one of the counterbores in the chute. This desktop angle adjustment device is manual, and it takes time and effort for the user to operate, and it is easy to pinch fingers, and the fixed block can only be buckled with the counterbore, which limits the desktop to the set angle. Adjustment, can not achieve continuous angle adjustment.

The application number is 201410213189.2 for a multi-functional desk. The lifting part uses a worm gear mechanism and a rack and pinion mechanism. It is divided into upper and lower table legs, and its internal structure is complex. The desktop angle adjustment device is manual, and it takes time and effort to adjust.

Utility model content

The purpose of this utility model is to solve the above-mentioned technical problems, and provide a simple structure, easy to use, high safety, students can freely adjust the height and angle of the tabletop according to the needs, which is beneficial to students' prevention of myopia and good sitting posture. Study desk with desk angle and height.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A learning table that can automatically adjust the angle and height of the desktop, which is composed of three parts: a desktop fine-tuning mechanism, two lifting mechanisms and an adjustment control module; The bottom of the mechanism is not in the same plane as the bottom plate, and is located between the two chute table legs.

The desktop fine-tuning mechanism consists of a V-shaped desktop 6, a desktop support frame 1, two lower hinges 2, two upper hinges 3, two chutes 4, two sliders 5, two support rods 7, and a transmission rod. 8. The push rod motor 9 and two push rod motor fixing frames 10 are composed; the two lower hinges 2 are respectively symmetrically fixed on the left and right ends of the desktop support frame 1 by screws, and are located at the lower end. The upper hinge 3 is respectively symmetrically fixed on the bottom surface of the desktop 6 by screws, the two chute 4 are symmetrically fixed on both ends of the desktop support frame 1, and the two sliders 5 are respectively movably arranged on the two chute 4 to slide inside to form a moving pair; the lower ends of the two support rods 7 are connected to the two sliders 5 through the hinges of the sliders 5 respectively to form a revolving pair, and the upper ends of the two support rods 7 are respectively connected to the inverted V-shaped The two hinges at the bottom of the desktop 6 are connected to form a revolving pair. The push rod motor 9 is fixed on the top of the desktop support frame 1 by two push rod motor fixing mounts 10, and is positioned in the middle of the desktop support frame 1. The transmission rod The two ends of 8 are fixedly connected with two slide blocks 5 respectively, and the middle part of transmission rod 8 is fixedly connected with the telescoping rod of push rod motor 9 .

The lifting mechanism consists of an upper flange seat 11, a spline shaft support column 12, a limit switch 13, a chute table leg 14, a lower flange seat 15, a base 16, a bottom plate 17, a trapezoidal thread nut 18, and a trapezoidal thread screw rod. 19. Clamping coupling 20 and micro DC servo motor 21; the base 16 is fixed on the bottom plate 17, the lower flange seat 15 is fixed on the base 16 by screws, and the micro DC servo motor 21 is fixedly arranged inside the base 16, and the rotating shaft of the miniature DC servo motor 21 protrudes above the base 16, and one end of the clamping coupling 20 is connected with the rotating shaft of the miniature DC servo motor 21, and the clamp The other end of the tight coupling 20 is connected to one end of the trapezoidal threaded screw rod 19, the upper flange seat 11 is fixed on the bottom surface of the desktop support frame 1 by screws, and the spline shaft support column 12 is connected to the upper flange The seat 11 is fixedly connected, and the trapezoidal thread nut 18 is fixedly set on the bottom of the spline shaft support column 12, and the trapezoidal thread nut 18 is movably connected with the other end of the trapezoidal thread screw rod 19, and the lower end of the table leg 14 of the chute Fixedly connected with the lower flange seat 15, the spline shaft support column 12 is slidably connected with the chute in the chute table leg 14 through the spline of the spline shaft support column 12, and the limit switch 13 is fixedly installed on the slide On the grooved table leg 14, and is positioned at the inner side of upper part.

The adjustment control module is composed of a desktop angle adjustment switch 22 and a control box 23; the desktop angle adjustment switch 22 is arranged on the top of the control box 23.

The utility model can automatically adjust the desktop angle and height of the learning table, which can be turned forward and reverse at the same time to realize the lifting of the desktop. Therefore, compared with the prior art, the utility model has the advantages of simple structure, high safety, high cost performance, broad market prospect, and being suitable for ordinary primary and middle school students to use.

Description of drawings

Fig. 1 is a structural representation of the utility model

Figure 2 is a schematic diagram of the desktop fine-tuning mechanism

Figure 3 is a detailed view of the interior of the desktop fine-tuning mechanism

Figure 4 is the right view of the desktop fine-tuning mechanism

Fig. 5 is the structural representation of slider;

Figure 6 is a structural schematic diagram of the lifting mechanism

Figure 7 is a detailed view of the interior of the lifting mechanism

Figure 8 is a schematic structural view of the spline shaft support column

Figure 9 is a sectional view of the chute table leg

Figure 10 is a structural schematic diagram of the regulation control module

Detailed ways

As shown in Figure 1, a study desk that can automatically adjust the angle and height of the desktop in this embodiment is composed of three parts: a desktop fine-tuning mechanism, two lifting mechanisms and an adjustment control module; the desktop fine-tuning mechanism is arranged on the top of the lifting mechanism , the adjustment control module is arranged under the lifting mechanism and is in a plane with the bottom plate, and is located between the two chute table legs.

As shown in Figures 2 to 5, the desktop fine-tuning mechanism consists of a V-shaped desktop 6, a desktop support frame 1, two lower hinges 2, two upper hinges 3, two chutes 4, and two sliders 5. , two support rods 7, a transmission rod 8, a push rod motor 9, and two push rod motor fixing frames 10; , and located at the lower end, the two upper hinges 3 are respectively symmetrically fixed on the bottom surface of the desktop 6 by screws, the two slide grooves 4 are symmetrically fixed on the two ends of the desktop support frame 1, and the two sliders 5 are respectively movably arranged to slide in the two slide grooves 4 to form a moving pair; the lower ends of the two support rods 7 are connected to the two sliders 5 through the hinges of the sliders 5 to form a revolving pair, and the two supporting rods The upper ends of the rods 7 are respectively connected with two hinges at the bottom of the inverted V-shaped desktop 6 to form a revolving pair. The push rod motor 9 is fixed on the top of the desktop support frame 1 by two push rod motor fixing brackets 10, and is positioned on the desktop support. In the middle of the frame 1, the two ends of the transmission rod 8 are fixedly connected with the two slide blocks 5 respectively, and the middle part of the transmission rod 8 is fixedly connected with the telescopic rod of the push rod motor 9.

As shown in Figures 6 to 9, the lifting mechanism consists of an upper flange seat 11, a spline shaft support column 12, a limit switch 13, a chute table leg 14, a lower flange seat 15, a base 16, a bottom plate 17, Trapezoidal thread nut 18, trapezoidal thread screw rod 19, clamping coupling 20, micro DC servo motor 21; the base 16 is fixed on the bottom plate 17, and the lower flange seat 15 is fixed on the base by screws 16, the miniature DC servo motor 21 is fixedly arranged inside the base 16, and the rotating shaft of the miniature DC servo motor 21 stretches out above the base 16, and one end of the clamping coupling 20 is connected with the miniature DC servo The rotating shaft of the motor 21 is connected, the other end of the clamping coupling 20 is connected with one end of the trapezoidal threaded screw rod 19, and the upper flange seat 11 is fixed on the bottom surface of the desktop support frame 1 by screws. The key shaft support column 12 is fixedly connected with the upper flange seat 11, and the trapezoidal thread nut 18 is fixedly set on the lower part of the spline shaft support column 12, and the trapezoidal thread nut 18 is movably connected with the other end of the trapezoidal thread screw rod 19, The lower end of the chute table leg 14 is fixedly connected with the lower flange seat 15, and the spline shaft support column 12 is slidably connected with the chute in the chute table leg 14 through the spline of the spline shaft support column 12, so as to To enhance the overall stability of the study table, the limit switch 13 is fixedly installed on the table leg 14 of the chute, and is located on the inner side of the upper part, and is used to control the range of the desktop lifting.

As shown in FIG. 10 , the adjustment control module is composed of a desktop angle adjustment switch 22 and a control box 23; the desktop angle adjustment switch 22 is arranged on the top of the control box 23.

The working process and principle of the utility model: when the desktop angle needs to be raised, it is only necessary to press the shorten button "-" of the desktop angle adjustment switch 22, and at this time the telescopic rod of the push rod motor 9 is shortened, driving the transmission rod 8 backward The two ends of the transmission rod 8 are respectively connected to two sliders 5, and the transmission rod 8 moves backward, thereby driving the two sliders 5 to slide backward in the two chutes 4 respectively, and the hinge on the slider 5 is connected to the support rod 7, and the hinge on the bottom surface of the desktop is connected to the other end of the support rod 7, so when the slide block 5 moved backward, the support rod 7 drove the angle of the tabletop through the hinge on the slide block 5 and the hinge on the bottom surface of the desktop 6. When the button was pressed, the push rod motor 9 did not work and was in a self-locking state, and the angle of the desktop remained unchanged. When the desktop angle needs to be lowered, you only need to press the extension button "+" of the desktop angle adjustment switch 22. At this time, the telescopic rod of the push rod motor 9 is extended to drive the transmission rod 8 to move forward, and the transmission rod 8 drives the two Each slider 5 moves forward in the two chute 4 respectively, and the slider 5 drives the desktop angle to drop through the support rod 7 . When the desktop angle needs to be fixed, it is only necessary to ensure that no button is pressed, and now the push rod motor 9 is in a self-locking state, and the slide block 5 will not move, thereby realizing the fixing of the desktop angle.

When you need to raise the height of the desktop, just press the start button on the control box 23" ", the miniature DC servo motor 21 forwards at the same time, the miniature DC servo motor 21 drives the forward rotation of the trapezoidal thread screw 19 through the clamping coupling 20, the trapezoidal thread nut 18 and the spline shaft support column 12. The upper flange seat 11 is welded together. The upper flange seat 11 is fixed on the desktop support frame 1. The trapezoidal thread nut 18 cannot be rotated, so the trapezoidal thread nut 18 will be made on the trapezoidal thread screw rod 19. Rising movement, so as to realize the elevation of the desktop. When it is raised to a suitable position, press the stop button "■" on the control box 23, and the desktop is in a static state. When the height of the desktop needs to be lowered, just press the control box again Start key on the 23" ", two miniature DC servo motors 21 reverse at the same time, and the miniature DC servo motors 21 drive the reverse of the trapezoidal thread screw rod 19 through the clamping coupling 20, the spline shaft support column 12 and the trapezoidal thread nut 18, The upper flange seat 11 is welded together, and the upper flange seat 11 is fixed on the desktop support frame 1. The trapezoidal thread nut 18 cannot be rotated, so the trapezoidal thread nut 18 performs a downward movement on the trapezoidal thread screw rod 19, thereby realizing the table top. When falling to a suitable position, press the stop button "■" on the control box 23, and the desktop is in a static state. The limit switch 13 controls the lifting range of the desktop.

Claims (4)

1. automatically can regulate a study table for tabletop angles and height, it is characterized in that: be made up of desktop micro-adjusting mechanism, two elevating mechanisms and regulable control module three part; Described desktop micro-adjusting mechanism is arranged on above elevating mechanism, and described regulable control module installation is below elevating mechanism and be a plane with base plate, and between two chute table legs.

2. a kind of study table that automatically can regulate tabletop angles and height according to claim 1, is characterized in that: described desktop micro-adjusting mechanism is made up of V-type desktop (6), table top supporter (1), two lower jaws (2), two upper hinges (3), two chutes (4), two slide blocks (5), two support bars (7), drive link (8), push-rod electric machine (9), two push-rod electric machine fixed mounts (10), described two lower jaws (2) are by the screw symmetrical two ends, left and right be fixed on above table top supporter 1 respectively, and be positioned at lower end, described two upper hinges (3) by screw respectively symmetry be fixed on the bottom surface of desktop (6), described two chute (4) symmetries are fixed on the two ends on table top supporter (1), described two slide blocks (5) are movably arranged on respectively in two chutes (4) and slide, and form moving sets, the lower end of described two support bars (7) and two slide blocks (5) are respectively by the chain connection of slide block (5), form revolute pair, the upper end of described two support bars (7) respectively with two chain connections of reverse V-shaped desktop (6) bottom, form revolute pair, described push-rod electric machine (9) is fixed on above table top supporter (1) by two push-rod electric machine fixed mounts (10), and be positioned at the centre of table top supporter (1), the two ends of described transmission (8) are fixedly connected with two slide blocks 5 respectively, the mid portion of drive link (8) is fixedly connected with the expansion link of push-rod electric machine (9).

3. a kind of study table that automatically can regulate tabletop angles and height according to claim 1, is characterized in that: described elevating mechanism is made up of upper flange seat (11), splined shaft support column (12), limit switch (13), chute table leg (14), lower flange seat (15), base (16), base plate (17), trapezoidal thread nut (18), trapezoidal thread screw mandrel (19), clamped-in style shaft coupling (20), minisize dc servomotor (21); described base (16) is fixedly installed on base plate (17), described lower flange seat (15) is fixedly installed on base (16) by screw, described minisize dc servomotor (21) is fixedly installed on the inside of base (16), and on the rotating shaft protuberate basic unit (16) of described minisize dc servomotor (21), one end of described clamped-in style shaft coupling (20) is connected with the rotating shaft of minisize dc servomotor (21), the other end of described clamped-in style shaft coupling (20) is connected with one end of trapezoidal thread screw mandrel (19), described upper flange seat (11) is fixedly installed on the bottom surface of table top supporter (1) by screw, described splined shaft support column (12) is fixedly connected with upper flange seat (11), described trapezoidal thread nut (18) is fixedly set in the bottom of splined shaft support column (12), described trapezoidal thread nut (18) is flexibly connected with the other end of trapezoidal thread screw mandrel (19), the lower end of described chute table leg (14) is fixedly connected with lower flange seat (15), described splined shaft support column (12) is connected with the slide in chute table leg (14) by the spline of splined shaft support column (12), described limit switch (13) is fixedly mounted on chute table leg (14), and be positioned at upper inner face.

4. a kind of study table that automatically can regulate tabletop angles and height according to claim 1, is characterized in that: described regulable control module is by tabletop angles by-pass cock (22), and control cabinet (23) forms; Described tabletop angles by-pass cock (22) is arranged on above control cabinet (23).