Shared desk

Abstract

The utility model relates to the field of teaching aids, in particular to a shared desk. The technical problems that the height of a table board of a traditional shared desk is inconvenient to adjust, the traditional shared desk is difficult to adapt to students with different heights, the drawing angle is inconvenient to adjust during drawing, and drawing is inconvenient are solved. A shared desk for occupational planning education comprises a bottom frame, two sets of guide columns are fixedly connected to the bottom frame and symmetrically arranged, the number of the guide columns in each set is two, and a mounting frame is slidably connected between the two guide columns in the same set. A motor rotates to drive a first gear to rotate, the first gear drives a second gear to rotate, the second gear drives a threaded rod to rotate, a nut frame moves upwards or downwards, the nut frame drives a connecting frame to move, the connecting frame drives a mounting frame to move, the mounting frame drives a placing frame to move, and the placing frame drives a desk plate to move, so that students can adjust the height of the desk plate conveniently; the device can adapt to students with different heights.

Description

Technical Field

[0001] The utility model relates to the field of teaching tools, in particular to a shared desk. Background Art

[0002] A desk is a teaching tool used by students to place teaching materials and for educational activities such as drawing and writing. A shared desk is a desk without a fixed user, and the height, age, and sitting habits of its users may vary.

[0003] When using traditional shared desks, it is not convenient for students to adjust the height of the desk, and it is difficult to adapt to students of different heights. In addition, when students put their sketchbooks on the shared desks to draw, it is not convenient to adjust the angle of the desk, which makes it inconvenient to adjust the drawing angle and inconvenient to draw. Utility Model Content

[0004] In order to overcome the shortcomings of traditional shared desks, which are not convenient for students to adjust the height of the desk, difficult to adapt to students of different heights, and not convenient to adjust the drawing angle when drawing, making it inconvenient to draw, the utility model provides a shared desk for career planning education that can facilitate students to adjust the height of the desk, can adapt to students of different heights, and can facilitate the adjustment of the drawing angle, making drawing more convenient.

[0005] The technical implementation scheme of the utility model is: a shared desk, including a base frame, two groups of guide columns are fixedly connected to the base frame, the two groups of guide columns are symmetrically arranged, each group of guide columns has two, a mounting frame is slidably connected between the two guide columns of the same group, the two mounting frames are symmetrically arranged, a placement frame is fixedly connected between the two mounting frames, a table top is fixedly connected to the top of the placement frame, and a lifting mechanism is provided on the base frame.

[0006] More preferably, the lifting mechanism includes a motor, the motor is fixedly connected to the top side of the base frame, a gear 1 is fixedly connected to the top of the output shaft of the motor, a threaded rod is rotatably connected to the top side of the base frame, the threaded rod is provided with threads, a gear 2 is fixedly connected to the lower end of the threaded rod, the gear 2 is meshed with the gear 1, a connecting frame is fixedly connected between the two mounting frames, a nut frame is fixedly connected to the bottom side of the connecting frame, and the nut frame is connected to the threaded rod by threads.

[0007] More preferably, it also includes a handle, which is rotatably connected to one side of the placement frame, and the handle is located above the motor. Gear three is fixedly connected to the handle, and a rotating shaft is rotatably connected to the table top. A movable plate is fixedly connected to the rotating shaft, and the movable plate is in contact with the table top. Gear four is fixedly connected to one end of the rotating shaft close to the handle, and gear four is meshed with gear three.

[0008] More preferably, it also includes an octagonal sleeve, the octagonal sleeve is fixedly connected to the handle, a locking frame 1 is slidably connected to one side of the placement frame, a slot is provided on the locking frame 1, the octagonal sleeve is located in the slot on the locking frame 1, the locking frame 1 clamps the octagonal sleeve, and then clamps the handle, gear three, gear four, rotating shaft and movable plate, and a reset spring is connected between the locking frame 1 and the placement frame.

[0009] More preferably, it also includes a sliding frame, the sliding frame is slidably connected to the lower part of the inner wall of the placement frame, two force storage springs are connected between the sliding frame and the placement frame, the two force storage springs are symmetrically arranged, and a locking frame 2 is slidably connected to the placement frame, the locking frame 2 is in contact with the sliding frame, the locking frame 2 clamps the sliding frame, and one side of the locking frame 2 is provided with a slope.

[0010] Compared with the prior art, the utility model has the following advantages: 1. The motor rotates to drive gear one to rotate, gear one drives gear two to rotate, gear two drives the threaded rod to rotate, and under the action of the thread on the threaded rod, the nut frame will move upward or downward, the nut frame drives the connecting frame to move upward or downward, the connecting frame drives the mounting frame to move upward or downward, the mounting frame drives the placement frame to move upward or downward, and the placement frame drives the table top to move upward or downward, which is convenient for students to adjust the height of the table top and can adapt to students of different heights.

[0011] 2. Students rotate the handle to drive gear three to rotate, gear three drives gear four to rotate, gear four drives the shaft to rotate, and the shaft drives the movable plate to rotate, so that students can adjust the angle of the movable plate and thus adjust the angle of painting, making painting more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model.

[0013] Figure 2 It is a partially cutaway three-dimensional structural schematic diagram of the utility model.

[0014] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0015] Figure 4 It is a schematic diagram of the split three-dimensional structure of the rotating shaft and the movable plate of the utility model.

[0016] Figure 5 It is a partial three-dimensional structural schematic diagram of the utility model.

[0017] Figure 6 This is a schematic diagram of the second three-dimensional structure of the utility model.

[0018] Figure 7 The utility model is a schematic diagram of the split three-dimensional structure of the base frame, guide column and mounting frame.

[0019] The meanings of the reference numerals in the figure are: 1. base frame, 2. guide column, 3. mounting frame, 4. placement frame, 5. table top, 6. motor, 7. gear one, 8. threaded rod, 9. gear two, 10. connecting frame, 11. nut frame, 12. handle, 13. gear three, 14. rotating shaft, 15. movable plate, 16. gear four, 17. octagonal sleeve, 18. locking frame one, 19. reset spring, 20. sliding frame, 21. storage spring, 22. locking frame two. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1: A shared desk, such as Figure 1-Figure 7 As shown, it includes a base frame 1, and two groups of guide columns 2 are fixedly connected to the base frame 1. The two groups of guide columns 2 are symmetrically arranged, and each group of guide columns 2 has two guide columns 2. A mounting frame 3 is slidably connected between the two guide columns 2 in the same group. The guide columns 2 are used to guide the mounting frames 3. The two mounting frames 3 are symmetrically arranged, and a placement frame 4 is fixedly connected between the two mounting frames 3. A table top 5 is fixedly connected to the top of the placement frame 4, and a lifting mechanism is provided on the base frame 1.

[0022] The lifting mechanism includes a motor 6, which is fixedly connected to one side of the top of the base frame 1, and a gear 1 7 is fixedly connected to the top of the output shaft of the motor 6, and the motor 6 is used to drive the gear 1 7 to rotate. A threaded rod 8 is rotatably connected to one side of the top of the base frame 1, and the threaded rod 8 is provided with threads. A gear 2 9 is fixedly connected to the lower end of the threaded rod 8, and the gear 2 9 is used to drive the threaded rod 8 to rotate. The gear 2 9 is meshed with the gear 1 7, and the gear 1 7 is used to drive the gear 2 9 to rotate. The motor 6 drives the gear 2 9 to rotate by driving the gear 1 7, and then drives the threaded rod 8 to rotate. A connecting frame 10 is fixedly connected between the two mounting frames 3, and a nut frame 11 is fixedly connected to one side of the bottom of the connecting frame 10, and the nut frame 11 is connected to the threaded rod 8 by threads.

[0023] It also includes a handle 12, one side of the placement frame 4 is rotatably connected to the handle 12, the handle 12 is located above the motor 6, the handle 12 is fixedly connected to a gear three 13, the handle 12 is used to drive the gear three 13 to rotate, the table board 5 is rotatably connected to a shaft 14, the shaft 14 is fixedly connected to a movable plate 15, the shaft 14 is used to drive the movable plate 15 to rotate, the movable plate 15 is in contact with the table board 5, the shaft 14 is fixedly connected to one end of the handle 12 with a gear four 16, the gear four 16 is used to drive the shaft 14 to rotate, the gear four 16 is meshed with the gear three 13, the gear three 13 drives the gear four 16 to rotate, and then drives the shaft 14 to rotate.

[0024] It also includes an octagonal sleeve 17, which is fixedly connected to the handle 12. A locking frame 18 is slidably connected to one side of the placement frame 4. The locking frame 18 has a slot. The octagonal sleeve 17 is located in the slot on the locking frame 18. The locking frame 18 clamps the octagonal sleeve 17, and then clamps the handle 12, gear three 13, gear four 16, rotating shaft 14 and movable plate 15. A reset spring 19 is connected between the locking frame 18 and the placement frame 4.

[0025] Initially, the student places the chair on one side of the placement frame 4 and sits down with the two legs between the two sets of guide columns 2. When the height of the table board 5 needs to be adjusted, the student starts the motor 6. The rotation of the motor 6 drives the gear 1 7 to rotate clockwise. The clockwise rotation of the gear 1 7 drives the gear 2 9 to rotate counterclockwise. The counterclockwise rotation of the gear 2 9 drives the threaded rod 8 to rotate counterclockwise. Under the action of the threads on the threaded rod 8, the nut frame 11 will move upward. The upward movement of the nut frame 11 drives the connecting frame 10 to move upward. The upward movement of the connecting frame 10 drives the mounting frame 3 to move upward along the guide columns 2. The upward movement of the mounting frame 3 drives the placement frame 4 to move upward. The upward movement of the placement frame 4 drives the table board 5 to move upward. After the table board 5 is adjusted to a suitable height, the student turns off the motor 6. When the height of the table board 5 needs to be lowered, the student adjusts the motor 6 to rotate in the opposite direction, and the motor 6 rotates in the opposite direction to drive the gear 1 7 to rotate counterclockwise, and the gear 1 7 rotates counterclockwise to drive the gear 2 9 to rotate clockwise, and the gear 2 9 rotates clockwise to drive the threaded rod 8 to rotate clockwise. Under the action of the threads on the threaded rod 8, the nut frame 11 moves downward, and the nut frame 11 moves downward to drive the connecting frame 10 to move downward, and the connecting frame 10 moves downward to drive the mounting frame 3 to move downward along the guide column 2, and the mounting frame 3 moves downward to drive the placement frame 4 to move downward, and the placement frame 4 moves downward to drive the table board 5 to move downward. After the table board 5 is adjusted to a suitable height, the student turns off the motor 6. Through the above operation, it is convenient for students to adjust the height of the table board 5 to adapt to students of different heights. When it is necessary to adjust the drawing angle, the student puts the drawing book on the movable plate 15, and the student pulls the locking frame 18 downward, the reset spring 19 is compressed, the locking frame 18 moves downward and disengages from the octagonal sleeve 17, and the locking frame 18 no longer blocks the octagonal sleeve 17, thereby making the handle 12 no longer blocked. Then the student rotates the handle 12 clockwise, and the clockwise rotation of the handle 12 drives the gear three 13 to rotate clockwise, and the clockwise rotation of the gear three 13 drives the gear four 16 to rotate counterclockwise, and the counterclockwise rotation of the gear four 16 drives the rotating shaft 14 to rotate counterclockwise, and the counterclockwise rotation of the rotating shaft 14 drives the movable plate 15 to rotate counterclockwise, so that the student can adjust the angle of the movable plate 15, thereby adjusting the drawing angle, making drawing more convenient. After the drawing angle is adjusted to a suitable level, the student stops rotating. The handle 12 is moved and the locking frame 18 is released. The reset spring 19 will rebound and drive the locking frame 18 to move upward and reset. The locking frame 18 moves upward and resets to contact the octagonal sleeve 17. The octagonal sleeve 17 returns to the slot on the locking frame 18. The locking frame 18 re-clamps the octagonal sleeve 17, and then re-clamps the handle 12, gear three 13, gear four 16, shaft 14 and movable plate 15 to prevent the movable plate 15 from rotating when the student is painting and affecting the painting effect. After the painting is finished, the student pulls the locking frame 18 downward, the reset spring 19 is compressed, the locking frame 18 moves downward and disengages from the octagonal sleeve 17, the locking frame 18 no longer clamps the octagonal sleeve 17, and then the handle 12 is no longer clamped. Then the student rotates the handle 12 counterclockwise.The handle 12 rotates counterclockwise to drive the gear 3 13 to rotate counterclockwise, the gear 3 13 rotates counterclockwise to drive the gear 4 16 to rotate clockwise, the gear 4 16 rotates clockwise to drive the shaft 14 to rotate clockwise, the shaft 14 rotates clockwise to drive the movable plate 15 to rotate clockwise, after the movable plate 15 is reset, the student stops rotating the handle 12 and releases the locking frame 18, the reset spring 19 will rebound and drive the locking frame 18 to move upward to reset, the locking frame 18 moves upward to reset and contacts the octagonal sleeve 17, the octagonal sleeve 17 returns to the slot on the locking frame 18, the locking frame 18 re-locks the octagonal sleeve 17, and then re-locks the handle 12, gear 3 13, gear 4 16, shaft 14 and movable plate 15, which is convenient for the next use.

[0026] Embodiment 2: Based on embodiment 1, Figure 2 and Figure 5-Figure 6 As shown, a sliding frame 20 is also included. The lower part of the inner wall of the placement frame 4 is slidably connected to the sliding frame 20. The sliding frame 20 is used to clean up the garbage in the placement frame 4. Two force storage springs 21 are connected between the sliding frame 20 and the placement frame 4. The force storage springs 21 are used to drive the sliding frame 20 to move. The two force storage springs 21 are symmetrically arranged. A locking frame 22 is slidably connected to the placement frame 4. The locking frame 22 is in contact with the sliding frame 20. The locking frame 22 clamps the sliding frame 20, and one side of the locking frame 22 is provided with an inclined surface.

[0027] Initially, the force storage spring 21 is stretched. When it is necessary to clean up the garbage in the placement frame 4, the student pulls the locking frame 22 upward, and the locking frame 22 moves upward and disengages from the sliding frame 20. The locking frame 22 no longer blocks the sliding frame 20. The force storage spring 21 rebounds and drives the sliding frame 20 to move away from the locking frame 22. Then the student releases the locking frame, and under the action of gravity, the locking frame 22 moves downward to reset. The movement of the sliding frame 20 away from the locking frame 22 will release the placement frame 4. The garbage in the placing frame 4 is pushed out, making it convenient for students to clean the garbage in the placing frame 4. After the garbage is cleaned, the students push the sliding frame 20 toward the direction close to the locking frame 22, the storage spring 21 is re-stretched, and the sliding frame 20 moves toward the direction close to the locking frame 22 and contacts the inclined surface on the locking frame 22. The sliding frame 20 will squeeze the locking frame 22 upward, and the locking frame 22 moves upward and breaks away from the contact with the sliding frame 20. Under the action of gravity, the locking frame 22 will move downward to reset and re-jam the sliding frame 20.

[0028] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A shared desk, characterized by: The invention comprises a base frame (1), two groups of guide columns (2) are fixedly connected to the base frame (1), the two groups of guide columns (2) are symmetrically arranged, each group of guide columns (2) is two, a mounting frame (3) is slidably connected between the two guide columns (2) of the same group, the two mounting frames (3) are symmetrically arranged, a placement frame (4) is fixedly connected between the two mounting frames (3), a table top (5) is fixedly connected to the top of the placement frame (4), and a lifting mechanism is provided on the base frame (1); The lifting mechanism comprises a motor (6), the motor (6) is fixedly connected to one side of the top of the base frame (1), a gear 1 (7) is fixedly connected to the top of the output shaft of the motor (6), a threaded rod (8) is rotatably connected to one side of the top of the base frame (1), the threaded rod (8) is provided with threads, a gear 2 (9) is fixedly connected to the lower end of the threaded rod (8), the gear 2 (9) is meshed with the gear 1 (7), a connecting frame (10) is fixedly connected between the two groups of two mounting frames (3), a nut frame (11) is fixedly connected to one side of the bottom of the connecting frame (10), and the nut frame (11) is connected to the threaded rod (8) by threads; It also includes a handle (12), one side of the placement frame (4) is rotatably connected to the handle (12), the handle (12) is located above the motor (6), a gear three (13) is fixedly connected to the handle (12), a rotating shaft (14) is rotatably connected to the table top (5), a movable plate (15) is fixedly connected to the rotating shaft (14), the movable plate (15) is in contact with the table top (5), and a gear four (16) is fixedly connected to one end of the rotating shaft (14) close to the handle (12), and the gear four (16) is meshed with the gear three (13); The invention also comprises an octagonal sleeve (17), the octagonal sleeve (17) being fixedly connected to the handle (12), a locking frame (18) being slidably connected to one side of the placement frame (4), a slot being provided on the locking frame (18), the octagonal sleeve (17) being located in the slot on the locking frame (18), the locking frame (18) clamping the octagonal sleeve (17), and further clamping the handle (12), the gear (13), the gear (16), the rotating shaft (14) and the movable plate (15), and a return spring (19) being connected between the locking frame (18) and the placement frame (4).

2. A shared desk according to claim 1, characterized in that: The invention also comprises a sliding frame (20), the sliding frame (20) being slidably connected to the lower part of the inner wall of the placement frame (4), two force storage springs (21) being connected between the sliding frame (20) and the placement frame (4), the two force storage springs (21) being symmetrically arranged, a second locking frame (22) being slidably connected to the placement frame (4), the second locking frame (22) being in contact with the sliding frame (20), the second locking frame (22) clamping the sliding frame (20), and a slope being provided on one side of the second locking frame (22).

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