Learning table with turnover table board

Abstract

The utility model relates to a study desk with a turnover desk plate, which comprises desk legs and the desk plate, and is characterized in that the upper ends of the desk legs are provided with fixed seats, the desk plate is integrally or fixedly connected with a rotary bracket which is rotatably arranged relative to the fixed seats, the fixed seats are provided with locking pieces and return springs which are in contact with the locking pieces, and the return springs are connected with the fixed seats. The rotating support is provided with a first locking groove and a second locking groove which are matched with the locking piece, the locking piece is driven by the reset spring to be clamped into the first locking groove or the second locking groove to achieve locking of the table board, and an unlocking piece is rotationally arranged on the fixing base and located on the outer side of the rotating support. And the unlocking piece can be rotated to drive the locking piece to be separated from the current locking groove so as to unlock the table plate. By the adoption of the technical scheme, the study desk with the turnover desk plate can achieve rapid turnover of the desk plate, the desk plate is locked through the locking assembly and prevented from shaking, and the study desk is simple in structure, convenient to operate and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of study desks, in particular to a study desk with a rotatable tabletop. Background Art

[0002] Taking a lunch break is crucial for promoting the brain development, bone growth, eyesight protection, physical and mental health of primary and middle school students, as well as improving learning ability and efficiency. In order to improve the comfort of students' lunch breaks, various improvements have been made to desks and chairs in the prior art. There is an existing adjustable combination of desks and chairs, which provides an idea for improving the comfort of students' lunch breaks, that is, the desktop of the desk is set to be a structure that can tilt forward and flip, and the seat is set to be a structure that can recline. Through this structural design, it is possible to take a nap conveniently without adjusting the height of the tabletop. At the same time, the space occupied is relatively small.

[0003] However, the structure for adjusting and controlling the angle of the tabletop disclosed in this patent is complex. Especially the design of the pneumatic rod is prone to damage during the use in schools, resulting in frequent repairs and high costs. In addition, setting the pneumatic rod outside the desk poses risks. Therefore, a simple and non-damaging structure for adjusting the angle of the tabletop is needed. Summary of the Invention

[0004] The purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a study desk with a rotatable tabletop, which can realize the rapid flipping of the tabletop, lock the tabletop through a locking component to avoid its shaking, and has a simple structure, convenient operation and low cost.

[0005] The technical solution of the utility model: A study desk with a rotatable tabletop includes table legs and a tabletop. A fixed seat is provided at the upper end of the table legs. A rotating bracket is integrally or fixedly connected to the tabletop and is rotatably arranged relative to the fixed seat. A locking member and a return spring in contact with the locking member are provided on the fixed seat. The rotating bracket is provided with a first locking groove and a second locking groove that cooperate with the locking member. The locking member is driven by the return spring to be inserted into the first locking groove or the second locking groove to lock the tabletop. An unlocking member is rotatably provided on the fixed seat. The unlocking member is located outside the rotating bracket. Rotating the unlocking member can drive the locking member to disengage from the current locking groove to unlock the tabletop.

[0006] With the above technical solution, when the tabletop is parallel to the ground, by rotating the unlocking member, the locking member is disengaged from the first locking groove. At this time, the tabletop is unlocked and can be rotated. The rotating bracket rotates around the fixed seat. When the second locking groove corresponds to the locking member, the locking member is snapped into the second locking groove under the action of the return spring to lock the tabletop. At this time, the tabletop is tilted, which is convenient for taking a nap. When unlocking, it is the same way. The locking member is disengaged from the second locking groove under the action of the unlocking member. When the tabletop is parallel to the ground, the locking member is located in the first locking groove to achieve locking. The structure is simple, the operation is convenient, and the cost is low.

[0007] A further setting of the present utility model: The fixed seat is provided with a receiving cavity, the locking member and the return spring are located in the receiving cavity. The fixed seat is provided with an opening, and the locking member extends out of the receiving cavity from the opening under the drive of the return spring. An annular boss is provided on the outer side surface of the fixed seat, and an arc-shaped groove communicating with the opening is provided on the annular boss. A through hole adapted to the annular boss is provided on the rotating bracket, and the through hole is located outside the arc-shaped groove. Both locking grooves communicate with the through hole. A part of the locking member is located in the arc-shaped groove. The unlocking member is provided with a pressing block, and the pressing block passes through the through hole and is located in the arc-shaped groove and moves in the arc-shaped groove.

[0008] With the above further setting, the through hole is located outside the annular boss, and the rotating bracket rotates around the annular boss smoothly without jamming. When the unlocking member rotates, the pressing block moves in the arc-shaped groove, which can drive the locking block to retract into the receiving cavity and disengage from the current locking groove to unlock the tabletop. The arc-shaped groove can limit the pressing block to limit the tilting angle of the tabletop.

[0009] A further further setting of the present utility model: The notch of the first locking groove is larger than the notch of the second locking groove. A convex block is provided on the locking member. When the locking member is located in the first locking groove, the tabletop is in a parallel state. When the convex block is located in the second locking groove, the tabletop is in a tilted state.

[0010] With the above further further setting, a part of the locking member is located inside the rotating bracket, and the rotating bracket presses the locking member. The cooperation between the second locking groove and the convex block prevents the tabletop from not being able to stand at the current angle when it is tilted, and a certain external force needs to be applied to the tabletop to make it flip into a horizontal state.

[0011] A further further further setting of the present utility model: The rotating bracket includes a support arm and a support plate integrally formed. The support arm is fixedly connected to the tabletop. The through hole and the two locking grooves are all provided on the support plate. A limiting groove is also provided on the support plate. The limiting groove and the two locking grooves are respectively located on both sides of the through hole. A limiting block is provided on the outer side wall of the annular boss. When the rotating bracket rotates relative to the fixed seat, the limiting block slides relative to the limiting groove.

[0012] With the above further settings, the support arm is installed on the lower end surface of the tabletop through screws. The cooperation between the limit block and the limit groove can limit the tabletop and restrict the tilting angle of the tabletop.

[0013] A further setting of the present utility model: A cover plate is provided between the unlocking member and the support plate. The cover plate is connected to the fixed seat through fasteners. The unlocking member is rotatably arranged on the fixed seat around the fasteners. An arc-shaped through groove is provided on the cover plate corresponding to the position of the arc-shaped groove. The pressing block is movably arranged in the arc-shaped through groove.

[0014] With the above further settings, the setting of the cover plate prevents the rotating bracket from detaching from the fixed seat, making its structure stable. The fasteners are set as screws, and the ends sequentially pass through the unlocking member and the cover plate and are threadedly connected to the fixed seat. The pressing block passes through the arc-shaped through groove and extends into the arc-shaped groove. The structure is simple and the installation is convenient.

[0015] A further setting of the present utility model: A first connecting arm and a second connecting arm are fixedly connected to the support arm. The first connecting arm and the second connecting arm are respectively located on both sides of the fixed seat. The ends of the two connecting arms close to the fixed seat are arc-shaped and are provided with an open bottom. Corresponding positioning blocks are provided on the outer side wall of the fixed seat, and the positioning blocks are located between the two connecting arms.

[0016] With the above further settings, an installation cavity is provided on the support arm. The connecting arms are located in the installation cavity and are connected to the support arm through screws. The ends of the connecting parts are arc-shaped, which is convenient for them to rotate with the rotating bracket and the movement is smooth. After the first connecting arm touches the positioning block, at this time the tabletop is tilted in place and cannot be further flipped and tilted, further positioning the tabletop to prevent the tabletop from flipping when the lunch break chair presses on the tabletop during the lunch break. Description of the Drawings

[0017] Figure 1 Schematic diagram when the tabletop is parallel to the ground;

[0018] Figure 2 Schematic diagram when the locking member is located in the first locking groove;

[0019] Figure 3 Schematic diagram when the tabletop is tilted;

[0020] Figure 4 Schematic diagram when the convex block on the locking member is located in the second locking groove;

[0021] Figure 5 Cross-sectional view of the study table;

[0022] Figure 6 For Figure 5 Enlarged view of part A in

[0023] Figure 7Schematic diagram of the rotating bracket;

[0024] Figure 8 Schematic diagram of the fixed seat;

[0025] Figure 9 Schematic diagram of the rotating bracket and two connecting arms;

[0026] Figure 10 Schematic diagram of the unlocking member;

[0027] Figure 11 Schematic diagram of the cover plate;

[0028] Figure 12 Schematic diagram of the accommodating cavity;

[0029] Figure 13 Schematic diagram of the locking member.

[0030] In the figure, 1, table leg; 2, tabletop; 3, fixed seat; 31, locking member; 311, convex block; 312, stop block; 32, return spring; 33, accommodating cavity; 331, convex column; 35, annular convex platform; 351, arc groove; 352, limit block; 36, positioning block; 4, rotating bracket; 41, first locking groove; 42, second locking groove; 43, through hole; 44, support arm; 45, support plate; 451, limit groove; 5, unlocking member; 51, pressing block; 6, cover plate; 61, arc through groove; 62, hook; 7, first connecting arm; 8, second connecting arm. Detailed implementation manners

[0031] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back...) are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0033] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present invention, "several" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In addition, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those skilled in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] As Figure 1-13 shown, a study desk with a rotatable tabletop includes table legs 1 and a tabletop 2. The specific structure of the table legs 1 is prior art and will not be described in detail. A bookcase is provided below the tabletop 2. A fixed seat 3 is provided at the upper end of the table legs 1. A rotating bracket 4 that is rotatably arranged relative to the fixed seat 3 is integrally or fixedly connected to the tabletop 2. A locking member 31 and a return spring 32 in contact with the locking member 31 are provided on the fixed seat 3. A first locking groove 41 and a second locking groove 42 that cooperate with the locking member 31 are provided on the rotating bracket 4. The locking member 31 is driven by the return spring 32 to snap into the first locking groove 41 or the second locking groove 42 to lock the tabletop 2. An unlocking member 5 is rotatably provided on the fixed seat 3. The unlocking member 5 is located outside the rotating bracket 4. Rotating the unlocking member 5 can drive the locking member 31 to disengage from the current locking groove to unlock the tabletop 2. When the tabletop 2 is parallel to the ground, by rotating the unlocking member 5, the locking member 31 is disengaged from the first locking groove 41. At this time, the tabletop 2 is unlocked and can be rotated. The rotating bracket 4 rotates around the fixed seat 3. When it rotates to the second locking groove 42 corresponding to the locking member 31, the locking member 31 snaps into the second locking groove 42 under the action of the return spring 32 to lock the tabletop 2. At this time, the tabletop 2 is inclined, which is convenient for taking a nap. When unlocking, it is the same way. The locking member 31 is disengaged from the second locking groove 42 under the action of the unlocking member 5. When the tabletop 2 is parallel to the ground, the locking member 31 is located in the first locking groove 41 to achieve locking. The structure is simple, the operation is convenient, and the cost is low.

[0036] The fixed seat 3 is provided with a receiving cavity 33. The locking member 31 is located in the receiving cavity 33. A detachable cover plate is connected to the rear side of the fixed seat 3. The cover plate is provided with a convex column 331. The locking member 31 is provided with a positioning cavity. One end of the return spring 32 is sleeved on the convex column 331, and the other end is located in the positioning cavity. Both ends of the receiving cavity 33 are open. The front end of the locking member 31 extends out of the receiving cavity 33 under the drive of the return spring 32. An annular boss 35 is provided on the outer side surface of the fixed seat 3. An arc-shaped groove 351 communicating with the opening 34 is provided on the annular boss 35. A through hole 43 adapted to the annular boss 35 is formed on the rotating bracket 4. The through hole 43 is located outside the arc-shaped groove 351. Both locking grooves communicate with the through hole 43. A part of the locking member 31 is located in the arc-shaped groove 351. The unlocking member 5 is provided with a pressing block 51. The pressing block 51 passes through the through hole 43 and is located in the arc-shaped groove 351 and moves in the arc-shaped groove 351. The through hole 43 is located outside the annular boss 35. The rotating bracket 4 rotates around the annular boss 35 smoothly without jamming. When the unlocking member 5 rotates, the pressing block 51 moves in the arc-shaped groove 351, which can drive the locking block to retract into the receiving cavity 33 and disengage from the current locking groove, realizing the unlocking of the tabletop 2. The arc-shaped groove 351 can limit the pressing block 51 and limit the tilting angle of the tabletop 2. A stop block 312 is provided at the rear end of the locking member 31. When the front end of the locking member 31 extends out of the receiving cavity 31, the stop block 312 is in contact and cooperation with the front side wall of the receiving cavity 31 to prevent the locking member from detaching from the receiving cavity 31.

[0037] The notch of the first locking groove 41 is larger than the notch of the second locking groove 42. The locking member 31 is provided with a convex block 311. When the locking member 31 is located in the first locking groove 41, the tabletop 2 is in a parallel state. When the convex block 311 is located in the second locking groove 42, the tabletop 2 is in a tilted state. Part of the locking member is located inside the rotating bracket. The rotating bracket presses the locking member. The cooperation between the second locking groove and the convex block prevents the tabletop from being unable to stand at the current angle when it is tilted, and a certain external force needs to be applied to the tabletop to turn it into a horizontal state, with a stable structure.

[0038] The rotating bracket 4 includes a support arm 44 and a support plate 45 integrally formed. The support arm 44 is fixedly connected to the tabletop 2. The through hole 43 and both locking grooves are provided on the support plate 45. A limiting groove 451 is further provided on the support plate 45. The limiting groove 451 and both locking grooves are located on both sides of the through hole 43 respectively. A limiting block 352 is provided on the outer side wall of the annular boss 35. When the rotating bracket 4 rotates relative to the fixed seat 3, the limiting block 352 slides relative to the limiting groove 451. The support arm 44 is installed on the lower end surface of the tabletop 2 by screws. The cooperation between the limiting block 352 and the limiting groove 451 can limit the tabletop 2 and limit the tilting angle of the tabletop 2.

[0039] A cover plate 6 is provided between the unlocking member 5 and the support plate 45. The cover plate 6 is connected to the fixed seat 3 by fasteners. The unlocking member 5 is rotatably arranged on the fixed seat 3 around the fasteners. An arc-shaped through groove 61 is formed in the cover plate 6 corresponding to the position of the arc-shaped groove 351. The pressing block 51 is movably arranged in the arc-shaped through groove 61. A hook 62 is provided at the lower end of the cover plate 6, which can be used to hang on a schoolbag or the like. The setting of the cover plate 6 prevents the rotating bracket 4 from detaching from the fixed seat 3, making its structure stable. The fasteners are screws, and there are multiple screws. The ends of the screws sequentially pass through the unlocking member 5 and the cover plate 6 and are threadedly connected to the fixed seat 3. The unlocking member cooperates with one of the screws, and the pressing block 51 passes through the arc-shaped through groove 61 and extends into the arc-shaped groove 351. The structure is simple and the installation is convenient.

[0040] A first connecting arm 7 and a second connecting arm 8 are fixedly connected to the support arm 44. The first connecting arm 7 and the second connecting arm 8 are respectively located on both sides of the fixed seat 3. The ends of the two connecting arms close to the fixed seat 3 are arc-shaped and are open at the bottom. A positioning block 36 is correspondingly provided on the outer side wall of the fixed seat 3. The positioning block 36 is located between the two connecting arms. An installation cavity is formed in the support arm 44. The connecting arms are located in the installation cavity and are connected to the support arm 44 by screws. The end of the connecting part is arc-shaped, which is convenient for it to rotate with the rotating bracket 4 and the movement is smooth. After the first connecting arm 7 touches the positioning block 36, the table board 2 is tilted in place and cannot be further flipped and tilted, further positioning the table board 2 to prevent the table board 2 from being flipped when the lunch break chair presses on the table board 2 during the lunch break.

Claims

1. A study desk with a flip - up tabletop, comprising table legs (1) and a tabletop (2), characterized in that, A fixing base (3) is provided at the upper end of the table leg (1). A rotating bracket (4) that is rotatably arranged relative to the fixing base (3) is integrally or fixedly connected to the tabletop (2). A locking member (31) and a return spring (32) that contacts the locking member (31) are provided on the fixing base (3). A first locking groove (41) and a second locking groove (42) that cooperate with the locking member (31) are provided on the rotating bracket (4). The locking member (31) is driven by the return spring (32) to snap into the first locking groove (41) or the second locking groove (42) to lock the tabletop (2). An unlocking member (5) is rotatably provided on the fixing base (3). The unlocking member (5) is located outside the rotating bracket (4). Rotating the unlocking member (5) can drive the locking member (31) to disengage from the current locking groove to unlock the tabletop (2).

2. The learning desk with a flip-up tabletop according to claim 1, characterized in that, A receiving cavity (33) is provided on the fixing base (3). The locking member (31) is located in the receiving cavity (33). Both ends of the receiving cavity (33) are open. The locking member (31) extends out of the receiving cavity (33) under the drive of the return spring (32). An annular boss (35) is provided on the outer side surface of the fixing base (3). An arc-shaped groove (351) that communicates with the opening (34) is provided on the annular boss (35). A through hole (43) that is adapted to the annular boss (35) is provided on the rotating bracket (4). The through hole (43) is located outside the arc-shaped groove (351). Both locking grooves communicate with the through hole (43). A part of the locking member (31) is located in the arc-shaped groove (351). A pressing block (51) is provided on the unlocking member (5). The pressing block (51) passes through the through hole (43) and is located in the arc-shaped groove (351), and moves in the arc-shaped groove (351).

3. The study desk with a flip - up tabletop according to claim 2, characterized in that, A stop block (312) is provided at the rear end of the locking member (31). When the front end of the locking member (31) extends out of the receiving cavity (33), the stop block (312) is in abutting cooperation with the front side wall of the receiving cavity (33).

4. The study desk with a flip - up tabletop according to claim 1 or 2 or 3, characterized in that, The notch of the first locking groove (41) is larger than the notch of the second locking groove (42). A convex block (311) is provided on the locking member (31). When the locking member (31) is located in the first locking groove (41), the tabletop (2) is in a parallel state. When the convex block (311) is located in the second locking groove (42), the tabletop (2) is in an inclined state.

5. The study desk with a flip - up tabletop according to claim 2 or 3, characterized in that, The rotating bracket (4) includes a support arm (44) and a support plate (45) that are integrally formed. The support arm (44) is fixedly connected to the tabletop (2). The through hole (43) and both locking grooves are provided on the support plate (45). A limiting groove (451) is further provided on the support plate (45). The limiting groove (451) and both locking grooves are respectively located on both sides of the through hole (43). A limiting block (352) is provided on the outer side wall of the annular boss (35). When the rotating bracket (4) rotates relative to the fixing base (3), the limiting block (352) slides relative to the limiting groove (451).

6. The learning desk with a flip - up tabletop according to claim 5, characterized in that, A cover plate (6) is provided between the unlocking member (5) and the support plate (45). The cover plate (6) is connected to the fixed seat (3) through fasteners. The unlocking member (5) is rotatably arranged on the fixed seat (3) around the fasteners. An arc-shaped through groove (61) is formed in the cover plate (6) corresponding to the position of the arc-shaped groove (351). The pressing block (51) is movably arranged in the arc-shaped through groove (61).

7. The study desk with a flip - up tabletop according to claim 5, wherein, A first connecting arm (7) and a second connecting arm (8) are fixedly connected to the support arm (44). The first connecting arm (7) and the second connecting arm (8) are respectively located on both sides of the fixed seat (3). The ends of the two connecting arms close to the fixed seat (3) are arc-shaped and the bottom is open. A positioning block (36) is correspondingly arranged on the outer side wall of the fixed seat (3), and the positioning block (36) is located between the two connecting arms.

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