A student study desk

Abstract

The present invention relates to a desk, and in particular to a student study desk. It is necessary to design a student study desk that can solve the problem of a large number of books piling up on the desk without taking up space. A student study desk includes legs, a book drawer, a table top, a book placement device and a hand support device. The outer bottom of the book drawer is symmetrically fixed with legs, the top of the book drawer is fixed with a table top, the legs are provided with a book placement device for storing books, and the table top is provided with a hand support device for correcting sitting posture. The present invention places the hands on a rubber pad, so that sitting is comfortable, can correct the bad habit of bowing the head and bending over, and effectively prevent myopia and hunchback. The baffle can prevent pens or books from slipping off. People can also place books on the bookshelf to make them clear at a glance and convenient to find books. In this way, a large number of books can be piled up on the desk without taking up space, and the sitting posture is comfortable.

Description

Technical Field

[0001] The invention relates to a desk, in particular to a desk for students to study. Background Art

[0002] With the continuous improvement of the quality of modern life, the requirements and functions for teaching supplies are also increasing, and the most commonly used item by students in daily life is the desk.

[0003] Patent application CN209573804U, published on 20191105, discloses an adjustable desk and chair, including a desk support foot, a desk fixing rod is welded on the upper surface of the desk support foot, a desk adjustment rod is arranged at one end of the desk fixing rod away from the desk support foot, the desk adjustment rod penetrates the upper surface of the desk fixing rod and extends to the inside thereof, the upper surface of the desk adjustment rod is fixedly connected with a desktop by bolts, and a slide rail structure is arranged on the inner side of the desk support foot. Beneficial effects: the slide groove is connected by the roller mounted at the bottom of the slide plate, so that the slide plate and the slide groove are fixed, which is convenient for adjustment and fixation; by rotating the crank handle, the various bevel gears are meshed and rotated, thereby driving the screw rod to cooperate with the thread of the mounting groove, and the slide plate can be moved, which helps the user to adjust the distance between the desk chair, thereby ensuring a moderate position, preventing myopia, and facilitating the folding and unfolding of the slide plate, which is conducive to cleaning and hygiene; the structure is simple and the effect is obvious. Although the device is helpful for cleaning and sanitation, students nowadays have a lot of textbooks for study, and the textbooks are piled on the desks, which makes it difficult for students to carry out normal study activities.

[0004] Therefore, it is necessary to design a study desk for students that can solve the problem of a large number of books being piled up on the desk, does not take up space, and has a comfortable sitting posture, so as to solve the problems of the prior art. Summary of the invention

[0005] In order to overcome the disadvantage that students nowadays have a lot of textbooks to study and the textbooks are piled on the desks, which makes it difficult for students to study normally, the present invention provides a student study desk which can solve the problem of a large number of books being piled on the desks and does not take up space.

[0006] The present invention is achieved through the following technical approaches:

[0007] A student study desk comprises supporting legs, a book drawer, a table top, a book placing device and a hand support device. The supporting legs are symmetrically fixed to the outer bottom of the book drawer, the table top is fixed to the top of the book drawer, the supporting legs are provided with a book placing device for storing books, and the table top is provided with a hand support device for correcting sitting posture.

[0008] In addition, it is particularly preferred that the book placement device includes support blocks, bookshelves and drawers, two support blocks are fixedly connected to the rear side of the top inner side of the legs, a bookshelf is provided between the tops of the four support blocks, and a drawer is slidably provided on the lower right side of the bookshelf.

[0009] In addition, it is particularly preferred that the hand support device includes an inclined plate, a baffle and a rubber pad, the front of the table top is connected to the inclined plate by bolts, the baffle is fixed to the middle of the top of the inclined plate, and the rubber pad is fixed to the top of the inclined plate symmetrically.

[0010] In addition, it is particularly preferred that a seesaw device for facilitating reading is also included, the seesaw device including a mounting plate, a sliding frame, a first return spring, a pedal, a first rack, a first rotating shaft, a first gear, a limit block, a second rotating shaft, a transmission assembly, a second gear, a sliding plate, a second rack, a rotating cylinder and a rotating plate, a mounting plate is fixedly connected to the middle and rear side of the outer bottom of the bookshelf, a sliding frame is slidably provided in the mounting plate, a pedal is fixedly connected to the front of the sliding frame, a first return spring is fixedly connected to the left and right sides of the rear side surface of the sliding frame and the inside of the mounting plate, a first rack is fixedly connected to the middle part of the rear side surface of the sliding frame, a first rotating shaft is rotatably provided at the rear of the mounting plate, a first gear is fixedly connected to the middle of the first rotating shaft, and the first gear is symmetrically fixedly connected to the first gear. A rack is meshed, and a limiting block is fixedly connected to the middle part of the upper rear side surface outside the book drawer. A second rotating shaft is rotatably provided at the rear of the limiting block. A transmission assembly is connected between the right part of the second rotating shaft and the right part of the first rotating shaft. The transmission assembly consists of two pulleys and belts. One pulley is installed on the right part of the second rotating shaft, and the other pulley is installed on the right part of the first rotating shaft. The belt is wound around the two pulleys. A second gear is fixedly connected to the middle part of the second rotating shaft. A sliding plate is slidably provided in the limiting plate, and a second rack is fixedly connected to the middle part of the rear side surface of the sliding plate. The second rack is meshed with the first gear. A rotating plate for placing books is hingedly provided in the middle of the rear of the table top, and a rotating cylinder is rotatably provided on the upper part of the sliding plate, and the rotating cylinder is in contact with the rotating plate.

[0011] In addition, it is particularly preferred that a locking device for limiting position is also included, the locking device including a hinge block, a top plate, a second return spring, a mounting seat, a sliding rod, a third return spring, a mounting frame, a hook plate and a torsion spring, a hinge block is fixed to the rear part of the inner side surface of the leg, a top plate is hingedly provided on the inner side of the hinge block, a second return spring is provided between the lower part of the outer side surface of the top plate and the inner side surface of the hinge block, a mounting seat is fixed symmetrically to the front side of the outer bottom of the bookshelf, a sliding rod is slidably provided at the lower part of the mounting seat, adjacent sliding rods are in contact with the top plate, a third return spring is wound between the outer side of the mounting seat and the outer side of the sliding rod, a mounting frame is fixed symmetrically to the front side of the outer bottom of the bookshelf, a hook plate for limiting position is hingedly provided at the lower part of the mounting frame, the pedal can contact the hook plate, the sliding rod can contact the hook plate, and a torsion spring is wound between the inner side surface of the mounting frame and the upper part of the hook plate.

[0012] In addition, it is particularly preferred that a supporting device for placing school bags is also included, the supporting device includes a hanging plate, a right-angle plate and a pad block, two hanging plates are slidingly provided on the upper front side of the right part of the bookshelf, a right-angle plate is fixed between the lower parts of the two hanging plates, and pad blocks for buffering are symmetrically provided front and back at the bottom of the right-angle plate.

[0013] In addition, it is particularly preferred that a storage device for storing stationery is also included, the storage device includes a mounting frame, a pen box and a limit plate, the mounting frame is fixedly connected to the right middle side of the bottom of the table top, a pen box for placing stationery is slidably provided in the mounting frame, and a limit plate is symmetrically slidably provided at the lower part of the mounting frame, and the limit plate is fixedly connected to the pen box.

[0014] Furthermore, it is particularly preferred that the cushion block is made of rubber.

[0015] Compared with the prior art, the present invention has the following significant improvements:

[0016] 1. The present invention places the hands on the rubber pad, so that the sitting is comfortable, the bad habit of bending the head and lowering the waist can be corrected, and myopia and hunchback can be effectively prevented. The baffle can prevent pens or books from slipping. People can also place books on the bookshelf to see them clearly and find books conveniently. In this way, a large number of books can be piled up on the desk without taking up space, and the sitting posture is comfortable.

[0017] 2. Under the action of the seesaw device of the present invention, the rotating cylinder moves upward to drive the rotating plate to swing upward. The rotating plate swings upward in an inclined state, and people can place books on the rotating plate for reading without using the desk. In this way, people can form a straight line of sight when reading books, which is more comfortable.

[0018] 3. With the support device of the present invention, a schoolbag can be placed on the right-angle block. Since the cushion block is made of rubber and has a certain plasticity, it can buffer the right-angle block, so that people can place their schoolbags conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the book placing device of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the hand support device of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the seesaw device of the present invention.

[0024] Figure 6 It is a schematic diagram of a first partial cross-sectional structure of the seesaw device of the present invention.

[0025] Figure 7 It is a schematic diagram of a second partial cross-sectional structure of the seesaw device of the present invention.

[0026] Figure 8 It is a partial three-dimensional structural schematic diagram of the locking device of the present invention.

[0027] Fig. 9 It is an enlarged schematic diagram of part A of the present invention.

[0028] Fig.10 It is an enlarged schematic diagram of part B of the present invention.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the supporting device of the present invention.

[0030] Fig.12 It is a schematic diagram of the cross-sectional structure of the storage device of the present invention.

[0031] The above drawings include the following reference numerals: 1: supporting leg, 2: book drawer, 3: table top, 4: book placing device, 41: supporting block, 42: bookshelf, 43: drawer, 5: hand support device, 51: inclined plate, 52: stop bar, 53: rubber pad, 6: seesaw device, 61: mounting plate, 62: sliding frame, 63: first return spring, 64: pedal, 65: first rack, 66: first rotating shaft, 67: first gear, 68: limit block, 69: second rotating shaft, 610: transmission assembly, 611: second gear, 612: sliding plate, 613: second rack, 614: rotating cylinder, 615: rotating plate, 7: locking device, 71: hinge block, 72: top plate, 73: second return spring, 74: mounting seat, 75: sliding rod, 76: third return spring, 77: mounting frame, 78: hook plate, 79: torsion spring, 8: supporting device, 81: hanging plate, 82: right-angle plate, 83: cushion block, 9: storage device, 91: mounting frame, 92: pen box, 93: limit plate. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings, and embodiments of the present invention are given in conjunction with the accompanying drawings.

[0033] Example 1

[0034] A student study desk, such as Figure 1-Figure 4 As shown, it includes legs 1, book drawers 2, table tops 3, book placement devices 4 and hand support devices 5. The legs 1 are symmetrically fixed to the outer bottom of the book drawer 2, the table top 3 is fixed to the top of the book drawer 2, the legs 1 are provided with book placement devices 4, and the book placement devices 4 can be used to place books. The table top 3 is provided with hand support devices 5, and the hand support devices 5 can make people sit more comfortably.

[0035] like Figure 1-Figure 3As shown, the book placement device 4 includes a support block 41, a bookshelf 42 and a drawer 43. Two support blocks 41 are fixedly connected to the rear side of the top of the leg 1, and a bookshelf 42 is arranged between the tops of the four support blocks 41. A drawer 43 is slidably arranged on the lower right side of the bookshelf 42.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, the hand support device 5 includes an inclined plate 51, a baffle 52 and a rubber pad 53. The front of the table top 3 is connected to the inclined plate 51 by bolts, the baffle 52 is fixed in the middle of the top of the inclined plate 51, and the rubber pad 53 is fixed symmetrically on the top of the inclined plate 51.

[0037] When people use this desk, they can read or write on the table top 3. At the same time, the chest is pressed against the concave part of the inclined board 51, the back naturally leans back on the chair back, and the hands are placed on the rubber pad 53, so that the sitting is comfortable, the bad habit of bending down can be corrected, and myopia and hunchback can be effectively prevented. The blocking bar 52 can prevent pens or books from slipping. People can also place books on the bookshelf 42 to make it clear at a glance and convenient to find books. They can also pull the drawer 43 forward to place some sundries, and then pull the drawer 43 backward to reset.

[0038] Example 2

[0039] On the basis of Example 1, Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, it also includes a seesaw device 6, which includes a mounting plate 61, a sliding frame 62, a first return spring 63, a pedal 64, a first rack 65, a first rotating shaft 66, a first gear 67, a limit block 68, a second rotating shaft 69, a transmission assembly 610, a second gear 611, a sliding plate 612, a second rack 613, a rotating cylinder 614 and a rotating plate 615. The mounting plate 61 is fixedly connected to the middle and rear side of the outer bottom of the bookshelf 42, and the mounting plate 61 is slidably provided with a sliding frame 62, and the front part of the sliding frame 62 is fixedly connected to the pedal 64. The first return spring 63 is fixedly connected to the left and right sides of the rear side of the sliding frame 62 and the inside of the mounting plate 61. The middle part of the rear side of the sliding frame 62 is fixedly connected to the first rack 65, and the rear of the mounting plate 61 is rotatably provided with a first rotating shaft 66. The middle part of the first rotating shaft 66 is fixedly connected to the first gear 67, and the first gear 67 is meshed with the first rack 65. A limiting block 68 is fixedly connected to the part, and a second rotating shaft 69 is rotatably provided at the rear of the limiting block 68. A transmission assembly 610 is connected between the right part of the second rotating shaft 69 and the right part of the first rotating shaft 66. The transmission assembly 610 consists of two pulleys and a belt. One pulley is installed on the right part of the second rotating shaft 69, and the other pulley is installed on the right part of the first rotating shaft 66. The belt is wound around the two pulleys. A second gear 611 is fixedly connected to the middle part of the second rotating shaft 69. A sliding plate 612 is slidably provided in the limiting plate 93. A second rack 613 is fixedly connected to the middle part of the rear side surface of the sliding plate 612, and the second rack 613 is meshed with the first gear 67. A rotating plate 615 is hingedly provided in the middle of the rear part of the table top 3. When the rotating plate 615 swings to an inclined state, books can be placed on the rotating plate 615 to facilitate people to read. A rotating cylinder 614 is rotatably provided on the upper part of the sliding plate 612, and the rotating cylinder 614 is in contact with the rotating plate 615.

[0040] like Figure 1 , Figure 2 , Figure 8 , Fig. 9 and Fig.10As shown, it also includes a locking device 7, which includes a hinge block 71, a top plate 72, a second return spring 73, a mounting seat 74, a sliding rod 75, a third return spring 76, a mounting frame 77, a hook plate 78 and a torsion spring 79. The rear part of the inner side of the leg 1 is fixedly connected to the hinge block 71, the inner side of the hinge block 71 is hingedly provided with a top plate 72, and a second return spring 73 is provided between the lower part of the outer side of the top plate 72 and the inner side of the hinge block 71. The front side of the outer bottom of the bookshelf 42 is symmetrically fixed with a mounting seat 74, and the mounting seat 79 is fixedly connected to the inner side of the bookshelf 42. A sliding rod 75 is slidably provided at the lower part of the mounting seat 74, and adjacent sliding rods 75 are in contact with the top plate 72. A third return spring 76 is wound between the outer side of the mounting seat 74 and the outer side of the sliding rod 75. A mounting frame 77 is symmetrically fixed to the front side of the outer bottom of the bookshelf 42. A hook plate 78 is hingedly provided at the lower part of the mounting frame 77. The pedal 64 can contact the hook plate 78, and the hook plate 78 can limit the pedal 64. The sliding rod 75 can contact the hook plate 78, and a torsion spring 79 is wound between the inner side surface of the mounting frame 77 and the upper part of the hook plate 78.

[0041] When people use the desk, they push the pedal 64 backward with their feet, and the pedal 64 moves backward, driving the sliding plate 612 to move backward. The first return spring 63 is compressed, and the sliding plate 612 moves backward, driving the first rack 65 to move backward. The first rack 65 moves backward, driving the first gear 67 to rotate forward, and the first gear 67 rotates forward, and the first shaft 66 rotates forward, and the first shaft 66 rotates forward, and the transmission assembly 610 rotates forward, and the transmission assembly 610 rotates forward, and the second shaft 69 rotates forward, and the second shaft 69 rotates forward, and the second gear 611 rotates forward, and the second gear 611 rotates forward, and the second rack 613 moves upward, and the second rack 613 moves upward with The movable sliding plate 612 moves upward, and the sliding plate 612 moves upward to drive the rotating cylinder 614 to move upward, and the rotating cylinder 614 moves upward to drive the rotating plate 615 to swing upward, and the rotating plate 615 swings upward to an inclined state, and people can place books on the rotating plate 615 for reading. When the desk is not needed, the pedal 64 is released, and due to the action of the first return spring 63, the sliding plate 612 drives the first rack 65 to move forward and reset, and the sliding plate 612 also drives the rotating cylinder 614 to move downward and reset. Due to the action of gravity, the rotating plate 615 also swings downward and resets, so that people can form a straight line of sight when reading books, which is more comfortable.

[0042] When the pedal 64 is pushed to move backward, the first return spring 63 is compressed, the pedal 64 moves backward and contacts the hook plate 78. Due to the action of the torsion spring 79, the pedal 64 moves backward and slides over the hook plate 78, so that the hook plate 78 limits the pedal 64, and the rotating plate 615 also swings upward to be in an inclined state. When the desk is not needed, the lower part of the top plate 72 is pulled to swing outward, the second return spring 73 is compressed, the lower part of the top plate 72 swings outward, causing the upper part to swing inward, and the inward swing of the top plate 72 drives the sliding rod 75 to move inward, the third return spring 76 is compressed, and the sliding rod 75 moves inward and contacts the hook plate 78. The sliding rod 75 moves inwardly and drives the rear portion of the hook plate 78 to swing inwardly. The torsion spring 79 is stretched, and the rear portion of the hook plate 78 swings inwardly, causing the front portion to swing outward. The front portion of the hook plate 78 swings outward and stops limiting the pedal 64. Due to the action of the first return spring 63, the sliding plate 612 drives the pedal 64 to move forward and reset, thereby loosening the top plate 72. Due to the action of the second return spring 73, the top plate 72 also swings and resets, and due to the action of the third return spring 76, the sliding rod 75 moves outward and resets to disengage from the hook plate 78. Due to the action of the torsion spring 79, the hook plate 78 also swings and resets. In this way, there is no need for people to push the pedal 64 all the time.

[0043] Example 3

[0044] On the basis of Example 1 and Example 2, Figure 1 , Figure 2 and Fig.11 As shown, it also includes a supporting device 8, which includes a hanging plate 81, a right-angle plate 82 and a cushion block 83. Two hanging plates 81 are slidingly provided on the front side of the right part of the bookshelf 42, and a right-angle plate 82 is fixed between the lower parts of the two hanging plates 81. Cushion blocks 83 are symmetrically provided at the bottom of the right-angle plate 82. When a schoolbag is placed on the right-angle plate 82, the cushion block 83 can play a buffering role.

[0045] like Figure 1 , Figure 2 and Fig.12 As shown, a storage device 9 is also included, and the storage device 9 includes a mounting frame 91, a pen box 92 and a limit plate 93. The mounting frame 91 is fixedly connected to the right middle side of the bottom of the table top 3. A pen box 92 is slidably provided in the mounting frame 91, and the pen box 92 can be used to place stationery. A limit plate 93 is symmetrically slidably provided at the lower part of the mounting frame 91, and the limit plate 93 is fixedly connected to the pen box 92.

[0046] When people use this desk, they can place their schoolbags on the right-angle block. Since the cushion block 83 is made of rubber and has a certain plasticity, it can buffer the right-angle block, so that people can place their schoolbags conveniently.

[0047] When people use this desk, they can pull the pencil case 92 to the right by the handle, and the movement of the pencil case 92 to the right drives the limit plate 93 to move to the right. When the limit plate 93 moves to the right to the maximum stroke, the mounting frame 91 limits the limit plate 93, and the pencil case 92 is also limited. People can place or pick up stationery, and then pull the pencil case 92 to the left to reset, and the limit plate 93 also moves to the left to reset. In this way, people can store stationery conveniently.

[0048] Finally, it is necessary to point out that the above content is only used to help understand the technical solution of the present invention and cannot be understood as limiting the scope of protection of the present invention; non-essential improvements and adjustments made by technical personnel in the field of technology based on the above content of the present invention are all within the scope of protection required by the present invention.

Claims

1. A student study desk, comprising legs (1), a book drawer (2) and a table top (3), wherein the legs (1) are fixedly connected to the outer bottom of the book drawer (2) in a symmetrical manner, and the top of the book drawer (2) is fixedly connected to the table top (3), characterized in that: It also includes a book placement device (4) and a hand support device (5), wherein the supporting leg (1) is provided with a book placement device (4) for storing books, and the table top (3) is provided with a hand support device (5) for correcting sitting posture; The book placing device (4) comprises a support block (41), a bookshelf (42) and a drawer (43); two support blocks (41) are fixedly connected to the rear side of the top inner side of the support leg (1); a bookshelf (42) is provided between the tops of the four support blocks (41); and a drawer (43) is provided in a sliding manner on the lower right side of the bookshelf (42); The invention also includes a seesaw device (6) for facilitating reading, wherein the seesaw device (6) includes a mounting plate (61), a sliding frame (62), a first return spring (63), a pedal (64), a first rack (65), a first rotating shaft (66), a first gear (67), a stop block (68), a second rotating shaft (69), a transmission assembly (610), a second gear (611), a sliding plate (612), a second rack (613), a rotating cylinder (614) and a rotating plate (615), and a bookshelf (42 ) is fixedly connected to a mounting plate (61) at the middle and rear side of the outer bottom, a sliding frame (62) is slidably provided inside the mounting plate (61), a pedal (64) is fixedly connected to the front of the sliding frame (62), a first return spring (63) is fixedly connected symmetrically between the rear side of the sliding frame (62) and the inside of the mounting plate (61), a first rack (65) is fixedly connected to the middle of the rear side of the sliding frame (62), a first rotating shaft (66) is rotatably provided at the rear of the mounting plate (61), a first gear (67) is fixedly connected to the middle of the first rotating shaft (66), and the first The gear (67) is meshed with the first rack (65). A limit block (68) is fixedly connected to the middle portion of the outer rear side surface of the book drawer (2). A second rotating shaft (69) is rotatably provided at the rear of the limit block (68). A transmission assembly (610) is connected between the right portion of the second rotating shaft (69) and the right portion of the first rotating shaft (66). The transmission assembly (610) is composed of two pulleys and a belt. One pulley is installed on the right portion of the second rotating shaft (69), and the other pulley is installed on the right portion of the first rotating shaft (66). The belt is wound around the two pulleys. A second gear (611) is fixedly connected to the middle of the second rotating shaft (69), a sliding plate (612) is slidably provided inside the limiting plate (93), a second rack (613) is fixedly connected to the middle of the rear side surface of the sliding plate (612), the second rack (613) is meshed with the first gear (67), a rotating plate (615) for placing books is hingedly provided in the middle of the rear of the table board (3), a rotating cylinder (614) is rotatably provided on the upper part of the sliding plate (612), and the rotating cylinder (614) is in contact with the rotating plate (615); The bookcase (42) further comprises a supporting device (8) for placing schoolbags, the supporting device (8) comprising a hanging plate (81), a right-angle plate (82) and a cushion block (83), two hanging plates (81) being slidably provided on the upper front side of the right part of the bookcase (42), a right-angle plate (82) being fixedly connected between the lower parts of the two hanging plates (81), and cushion blocks (83) for buffering being symmetrically provided at the front and rear of the bottom of the right-angle plate (82).

2. A student study desk according to claim 1, characterized in that: The hand support device (5) comprises an inclined plate (51), a stop bar (52) and a rubber pad (53); the front of the table top (3) is connected to the inclined plate (51) by means of bolts; the stop bar (52) is fixedly connected to the middle of the top of the inclined plate (51); and the rubber pad (53) is fixedly connected to the top of the inclined plate (51) symmetrically.

3. A student study desk according to claim 2, characterized in that: The bookcase (42) further comprises a locking device (7) for limiting the position, the locking device (7) comprising a hinge block (71), a top plate (72), a second return spring (73), a mounting seat (74), a sliding rod (75), a third return spring (76), a mounting frame (77), a hook plate (78) and a torsion spring (79); a hinge block (71) is fixedly connected to the rear of the inner side surface of the leg (1); a top plate (72) is hingedly provided on the inner side of the hinge block (71); a second return spring (73) is provided between the lower part of the outer side surface of the top plate (72) and the inner side surface of the hinge block (71); and a mounting plate (75) is fixedly connected to the front side of the outer bottom of the bookshelf (42) symmetrically. A mounting seat (74) is provided with a sliding rod (75) at the lower part of the mounting seat (74) in a sliding manner, and adjacent sliding rods (75) are in contact with the top plate (72). A third return spring (76) is wound between the outer side of the mounting seat (74) and the outer side of the sliding rod (75). A mounting frame (77) is fixedly connected to the front side of the outer bottom of the bookshelf (42) symmetrically. A hook plate (78) for limiting is hingedly provided at the lower part of the mounting frame (77). The pedal (64) can contact the hook plate (78), and the sliding rod (75) can contact the hook plate (78). A torsion spring (79) is wound between the inner side surface of the mounting frame (77) and the upper part of the hook plate (78).

4. A student study desk according to claim 3, characterized in that: The device also comprises a storage device (9) for storing stationery, the storage device (9) comprising a mounting frame (91), a pen box (92) and a limiting plate (93), the mounting frame (91) being fixedly connected to the right middle side of the bottom of the table top (3), the pen box (92) for placing stationery being slidably arranged in the mounting frame (91), the limiting plate (93) being slidably arranged in the lower part of the mounting frame (91) in a front-to-back symmetrical manner, and the limiting plate (93) being fixedly connected to the pen box (92).

5. A student study desk according to claim 1, characterized in that: The material of the spacer (83) is rubber.

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