A kind of splicable special desk for children

Abstract

The present invention relates to a special desk for children, and in particular to a splicable special desk for children. A splicable special desk for children with a fixing function is provided, which prevents the spliced ​​desks from being easily separated. The present invention is achieved through the following technical means: a splicable special desk for children, including a connecting frame, a placement frame, a first fixed plate, a rotating rod, a connecting track, a connecting tube, etc., a connecting track is provided in the middle of the right side of the connecting frame, a connecting tube is provided in the middle of the left side of the connecting frame, a first fixed plate is symmetrically provided at the bottom of the connecting frame, a rotating rod is rotatably provided in the middle of the first fixed plate, and a placement frame for placing books for study is slidably provided at the rear side of the connecting frame. After the two desks are spliced ​​together, the first locking plate cooperates with the first sliding plate to fix the two desks together, and can also prevent the two desks from being separated when children are doing activities.

Description

Technical Field

[0001] The invention relates to a special desk for children, in particular to a splicable special desk for children. Background Art

[0002] When teaching young children, in order to enhance their hands-on ability and cooperation ability, two children are often asked to collaborate in some activities. At this time, the desks need to be spliced ​​together so that the children can carry out activities on the desks.

[0003] The existing splicing desk includes a connecting frame, a placement frame, a first fixed plate, a rotating rod, a connecting track and a connecting tube. The connecting track is provided in the middle of the right side of the connecting frame, the connecting tube is provided in the middle of the left side of the connecting frame, and the first fixed plate is symmetrically provided at the bottom of the connecting frame. The middle of the first fixed plate is rotatably provided with a rotating rod, and the rear side of the connecting frame is slidably provided with a placement frame. When the desks need to be spliced, two desks are spliced ​​together, and the two desks can be positioned by the connecting track and the connecting tube, which is more convenient when performing the splicing work. However, the desk is not fixed after being spliced, so that when young children use the desks, it is very easy to separate the two desks, thereby preventing the children's activities from proceeding smoothly.

[0004] In view of the above technical problems, a spliced ​​special desk for children is designed which has a fixing function and prevents the spliced ​​desks from being easily separated. Summary of the invention

[0005] In order to overcome the disadvantage that the existing spliced ​​desks are not fixed after being spliced, so that the two desks are easily separated when the children use the desks, a spliced ​​desk for children with a fixing function is provided, which can prevent the spliced ​​desks from being easily separated.

[0006] The present invention is achieved through the following technical approaches: a splicable special desk for children, including a connecting frame, a placement frame, a first fixed plate, a rotating rod, a connecting track, a connecting tube, a folding table leg mechanism and a locking mechanism, a connecting track is provided in the middle of the right side of the connecting frame, a connecting tube is provided in the middle of the left side of the connecting frame, a first fixed plate is symmetrically provided at the bottom of the connecting frame, a rotating rod is rotatably provided in the middle of the first fixed plate, a placement frame for placing books for study is slidably provided at the rear side of the connecting frame, a folding table leg mechanism capable of fixing the upright rotating rod is provided on the connecting frame, and a locking mechanism capable of locking the connecting track and the connecting tube is connected between the connecting track and the connecting tube.

[0007] As a preferred technical approach of the present invention, the folding table leg mechanism includes a torsion spring, a first connecting rod, a locking rod and a first spring. The torsion spring is symmetrically connected between the rotating rod and the adjacent first fixed plate. The first connecting rod is symmetrically arranged on the left and right sides of the bottom of the connecting frame. The first connecting rod is slidably connected to a locking rod capable of clamping the rotating rod. The locking rod and the adjacent first connecting rod are connected with a first spring. The locking rod is slidably connected to the connecting frame, and the rotating rod is symmetrically provided with locking holes that fit the locking rod.

[0008] As a preferred technical approach of the present invention, the locking mechanism includes a connecting plate, a first sliding plate, a first locking plate and a second spring. A connecting plate is provided in the middle of the connecting track, and a first sliding plate is provided in the middle of the connecting tube. A first locking plate is slidably provided on the first sliding plate, which can cooperate with the connecting plate to lock the connecting track and the connecting tube. A second spring is symmetrically connected front and back between the upper side of the first locking plate and the first sliding plate, and card holes that fit with the first locking plate are symmetrically opened front and back on the connecting plate.

[0009] As a preferred technical approach of the present invention, it also includes an automatic bending mechanism that can automatically rotate the rotating rod when two special desks for children are spliced ​​together. The automatic bending mechanism includes a second fixed plate, a first spur gear, a second spur gear, a driving block, a second connecting rod, a driving rod, a third spring and an inclined panel. Second fixed plates are symmetrically arranged on the left and right sides of the bottom of the connecting frame. The first spur gear that can automatically rotate the rotating rod after rotation is rotatably connected between the second fixed plates on the left and right sides. The second spur gear is meshed with the adjacent first spur gear. Driving blocks are symmetrically arranged on the first spur gear. Second connecting rods are symmetrically slidably arranged on the left and right sides of the lower part of the connecting frame. A driving rod that can release the locking rod from the rotating rod is connected between the second connecting rods on the left and right sides. The driving rod can contact the driving block when moving. The third spring is connected between the second connecting rod and the connecting frame. Inclined panels are arranged on the upper part of the locking rod, and the inclined panels are in contact with the adjacent driving rods.

[0010] As a preferred technical approach of the present invention, it also includes a fixing mechanism capable of fixing the rotating rod after rotation, the fixing mechanism includes a second sliding plate, a second locking plate and a fourth spring, a second sliding plate is provided on the middle rear side of the bottom of the connecting frame, a second locking plate capable of fixing the rotating rod after rotation is slidably provided on the second sliding plate, and a fourth spring is symmetrically connected between the second locking plate and the front side of the second sliding plate.

[0011] As a preferred technical approach of the present invention, it also includes a storage mechanism that is convenient for pulling out the placement frame, the storage mechanism includes a third connecting rod, a sliding plate, a pull-out rail and a fifth spring, the third connecting rods are symmetrically arranged on the front and rear sides of the bottom of the connecting frame, the sliding plates are slidably arranged on the lower sides of the third connecting rods, the fifth spring is connected between the sliding plates and the lower sides of the adjacent third connecting rods, the third connecting rod is located on the inner side of the first connecting rod, the sliding plates are connected to the placement frame, a pull-out rail is arranged on the left side of the placement frame, and the pull-out rail is slidably connected to the connecting frame.

[0012] As a preferred technical approach of the present invention, it also includes a driving and unlocking mechanism that can release the two special desks for young children when the placement frame is pulled out. The driving and unlocking mechanism includes a first driving plate, a fourth connecting rod, a second driving plate and a sixth spring. The first driving plates are provided at the lower parts of the left and right sides of the placement frame, and the fourth connecting rods are symmetrically provided on the left and right sides of the top of the connection frame. The second driving plates that can move the first locking plates upward after moving upward are slidably connected between the fourth connecting rods on the left and right sides. The sixth springs are symmetrically connected between the top of the second driving plate and the connection frame, and the second driving plates are in contact with the adjacent first locking plates.

[0013] As a preferred technical approach of the present invention, the first sliding plate and the first locking plate are both made of iron.

[0014] Combining all the above-mentioned technical approaches, the advantages and positive effects of the present invention are as follows: 1. After the two desks are spliced ​​together, the inner rotating rod can be rotated to fit with the connecting frame, so as to prevent the rotating rod in the middle of the two desks from affecting children's activities.

[0015] 2. After the two desks are spliced ​​together, the first locking plate cooperates with the first sliding plate to fix the two desks together, and can also prevent the two desks from being separated when children are carrying out activities.

[0016] 3. When two desks are spliced ​​together, the first spur gear will rotate to drive the second spur gear and the rotating rod to rotate, so that the rotating rod can automatically fit with the connecting frame, thereby reducing manual operation.

[0017] 4. The second locking plate can be used to limit the position of the rotating rod after rotation, so as to avoid the risk of the rotating rod rotating and resetting when the desk shakes, causing harm to the children. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a cross-sectional three-dimensional structural schematic diagram of the present invention.

[0020] Figure 3 It is a schematic diagram of a first three-dimensional structure of the folding table leg mechanism of the present invention.

[0021] Figure 4 It is a schematic diagram of a second three-dimensional structure of the folding table leg mechanism of the present invention.

[0022] Figure 5 It is a partial three-dimensional structural schematic diagram of the folding table leg mechanism of the present invention.

[0023] Figure 6 It is a schematic diagram of a first three-dimensional structure of the locking mechanism of the present invention.

[0024] Figure 7 It is a schematic diagram of the second three-dimensional structure of the locking mechanism of the present invention.

[0025] Figure 8 It is a schematic diagram of the first three-dimensional structure of the automatic bending mechanism of the present invention.

[0026] Fig. 9 It is a schematic diagram of a second three-dimensional structure of the automatic bending mechanism of the present invention.

[0027] Fig.10 It is a schematic diagram of a third three-dimensional structure of the automatic bending mechanism of the present invention.

[0028] Fig.11 It is a schematic diagram of the first three-dimensional structure of the fixing mechanism of the present invention.

[0029] Fig.12 It is a schematic diagram of the second three-dimensional structure of the fixing mechanism of the present invention.

[0030] Fig.13 It is a schematic diagram of the first three-dimensional structure of the storage mechanism of the present invention.

[0031] Fig.14 It is a schematic diagram of the second three-dimensional structure of the storage mechanism of the present invention.

[0032] Fig.15 It is a schematic diagram of the first three-dimensional structure of the driving unlocking mechanism of the present invention.

[0033] Fig.16 It is a schematic diagram of a second three-dimensional structure of the driving unlocking mechanism of the present invention.

[0034] The markings in the figure are: 1_connecting frame, 101_placing frame, 102_first fixing plate, 103_rotating rod, 2_connecting track, 3_connecting pipe, 4_folding table leg mechanism, 43_torsion spring, 44_first connecting rod, 45_locking rod, 46_first spring, 5_locking mechanism, 51_connecting plate, 52_first sliding plate, 53_first locking plate, 54_second spring, 6_automatic bending mechanism, 61_second fixing plate, 62_first straight gear, 602 _Second spur gear, 63_driving block, 64_second connecting rod, 65_driving rod, 66_third spring, 67_inclined plate, 7_fixing mechanism, 71_second sliding plate, 72_second locking plate, 73_fourth spring, 8_storage mechanism, 81_third connecting rod, 82_sliding plate, 802_pull-out track, 83_fifth spring, 9_driving unlocking mechanism, 91_first driving plate, 92_fourth connecting rod, 93_second driving plate, 94_sixth spring. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0036] Example 1

[0037] A kind of splicable special desk for children, referring to Figure 1-3 As shown, it includes a connecting frame 1, a placement frame 101, a first fixed plate 102, a rotating rod 103, a connecting rail 2, a connecting tube 3, a folding table leg mechanism 4 and a locking mechanism 5. The connecting frame 1 is provided with a connecting rail 2 in the middle of the right side by welding, and the connecting frame 1 is provided with a connecting tube 3 in the middle of the left side by welding. The first fixed plate 102 is symmetrically welded at the bottom of the connecting frame 1, and the rotating rod 103 is rotatably provided in the middle of the first fixed plate 102. The placing frame 101 is slidably provided at the rear side of the connecting frame 1. The placing frame 101 is used for placing books for study. The connecting frame 1 is provided with a folding table leg mechanism 4, which can fix the upright rotating rod 103. A locking mechanism 5 is connected between the connecting rail 2 and the connecting tube 3, and the locking mechanism 5 can lock the connecting rail 2 and the connecting tube 3.

[0038] Reference Figure 3-5As shown, the folding table leg mechanism 4 includes a torsion spring 43, a first connecting rod 44, a locking rod 45 and a first spring 46. The torsion spring 43 is symmetrically connected between the rotating rod 103 and the adjacent first fixed plate 102. The first connecting rod 44 is symmetrically welded on the left and right sides of the bottom of the connecting frame 1. The first connecting rod 44 is slidably connected with a locking rod 45, and the locking rod 45 can clamp the rotating rod 103. The first spring 46 is connected between the locking rod 45 and the adjacent first connecting rod 44. The locking rod 45 is slidably connected to the connecting frame 1, and the rotating rod 103 is symmetrically provided with locking holes that match the locking rod 45.

[0039] Reference Figure 6-7 As shown, the locking mechanism 5 includes a connecting plate 51, a first sliding plate 52, a first locking plate 53 and a second spring 54. A connecting plate 51 is provided in the middle of the connecting track 2 by welding, and a first sliding plate 52 is provided in the middle of the connecting tube 3 by welding. A first locking plate 53 is slidably provided on the first sliding plate 52. The first locking plate 53 can cooperate with the connecting plate 51 to lock the connecting track 2 and the connecting tube 3. A second spring 54 is symmetrically connected between the upper side of the first locking plate 53 and the first sliding plate 52. The connecting plate 51 is symmetrically provided with holes that match the first locking plate 53. Both the first sliding plate 52 and the first locking plate 53 are made of iron.

[0040] When a child needs to use a desk for class, the present desk can be used. The user can place books on the top of the placement frame 101 for study. If two children need to collaborate in group activities, the present desk can be spliced ​​together. When the staff splices the two desks together, the connecting pipe 3 is inserted into the connecting track 2 of the other desk. At this time, the first locking plate 53 continues to move after contacting the connecting plate 51, so that the first locking plate 53 can move upward, and the second spring 54 is stretched. When the first locking plate 53 is aligned with the card hole of the connecting plate 51, the first locking plate 53 moves downward and is carded in under the action of the second spring 54. The first spring 46 is stretched, and the locking rod 45 is moved upward to release the rotating rod 103, so that the inner rotating rod 103 can be rotated away from each other, and the corresponding rotating rods 103 can be moved away from each other. The torsion spring 43 is deformed, and then the rotating rod 103 can be fixed with the help of an appliance, so that the inner rotating rod 103 is at the bottom position close to the connecting frame 1, and the outer rotating rod 103 supports the two connecting frames 1, so as to prevent the rotating rod 103 in the middle position from affecting the activities of the children, and release the locking rod 45. Under the action of the first spring 46, the locking rod 45 will move downward a little distance and contact the rotating rod 103. When the activity is completed and the desk needs to be separated, the inner rotating rod 103 can be released, so that under the action of the torsion spring 43, the inner rotating rod 10 3 Rotate and reset. Under the action of the first spring 46, the locking rod 45 moves downward and resets and snaps into the locking hole of the rotating rod 103. In this way, the rotating rod 103 can be limited to prevent the rotating rod 103 from rotating easily. Then, the placement frame 101 can be pulled to move upward, and then the first locking plate 53 is moved upward with the help of an instrument. The second spring 54 is stretched, and the two desks can be separated. The first locking plate 53 is released, and under the action of the second spring 54, the first locking plate 53 moves downward and resets, and then the placement frame 101 moves downward and resets. This operation is more convenient, and the position of the spliced ​​desks will not change.

[0041] Example 2

[0042] Based on Example 1, Figure 2 , Figure 8 , Fig. 9 and Fig.10As shown, it also includes an automatic bending mechanism 6, which can automatically rotate the rotating rod 103 when two special desks for children are spliced ​​together. The automatic bending mechanism 6 includes a second fixed plate 61, a first spur gear 62, a second spur gear 602, a driving block 63, a second connecting rod 64, a driving rod 65, a third spring 66 and an inclined plate 67. The second fixed plates 61 are symmetrically provided on both sides of the bottom of the connecting frame 1 by welding. The first spur gear 62 is rotatably connected between the second fixed plates 61 on the left and right sides. After the first spur gear 62 is rotated, the rotating rod 103 can be automatically rotated. The upper side of the rotating rod 103 is connected to the second spur gear 62 by a key. Two spur gears 602, the second spur gears 602 are meshed with the adjacent first spur gears 62, the first spur gears 62 are symmetrically provided with driving blocks 63 by welding, the lower left and right sides of the connecting frame 1 are symmetrically slidingly provided with second connecting rods 64, the second connecting rods 64 on the left and right sides are connected with driving rods 65 by welding, the driving rods 65 can contact with the driving blocks 63 when moving, the driving rods 65 can make the locking rod 45 release the rotating rod 103, the second connecting rods 64 and the connecting frame 1 are connected with third springs 66, the upper part of the locking rods 45 is provided with inclined panels 67 by welding, and the inclined panels 67 are in contact with the adjacent driving rods 65.

[0043] When the two desks are spliced ​​together, the second connecting rod 64 on the inside will move outward and away from each other, the third spring 66 will be compressed, the second connecting rod 64 moves outward and drives the driving rod 65 to move outward, the driving rod 65 moves outward and drives the inclined plate 67 to move upward, the inclined plate 67 moves upward and drives the locking rod 45 to move upward to release the rotating rod 103, the first spring 46 is stretched, and then the driving rod 65 continues to move outward until it contacts the driving block 63 and continues to move, which can push the driving block 63 to rotate, the driving block 63 rotates and drives the first spur gear 62 to rotate, the first spur gear 62 rotates and drives the second spur gear 602 to rotate, and the second spur gear 602 rotates. The rotation drives the rotating rod 103 to rotate, so that the rotating rod 103 can be automatically rotated, and at this time the second connecting rod 64 is supported by the connecting frame 1, so that the rotating rod 103 cannot be rotated and reset due to gravity. In this way, there is no need to use an appliance to fix the rotating rod 103, which is more convenient for the use of this desk. When the desk is separated, the second connecting rod 64 is no longer supported by the connecting frame 1. Under the action of the third spring 66, the second connecting rod 64 and the driving rod 65 move inward and reset. The driving rod 65 no longer supports the driving block 63. Under the action of gravity, the second spur gear 602 and the rotating rod 103 rotate and reset, thereby causing the first spur gear 62 and the driving block 63 to rotate and reset.

[0044] Reference Figure 2 , Fig.11 and Fig.12As shown, it also includes a fixing mechanism 7, which can fix the rotating rod 103 after rotation. The fixing mechanism 7 includes a second sliding plate 71, a second locking plate 72 and a fourth spring 73. The second sliding plate 71 is provided on the middle rear side of the bottom of the connecting frame 1 by welding. The second locking plate 72 is slidably provided on the second sliding plate 71. The second locking plate 72 can fix the rotating rod 103 after rotation. The fourth spring 73 is symmetrically connected between the second locking plate 72 and the front side of the second sliding plate 71.

[0045] When the desk needs to be spliced, the staff can first pull the second locking plate 72 to move backward, the fourth spring 73 is stretched, and then the desk can be spliced. When the desk is spliced, the rotating rod 103 is at the upper side of the second locking plate 72, the second locking plate 72 is released, and the second locking plate 72 moves forward to support the rotating rod 103 under the action of the fourth spring 73, so that the rotating rod 103 can be limited after rotation, to avoid the risk of the rotating rod 103 rotating and resetting when the desk shakes, causing injury to the child. When the desk is disassembled after use, the second locking plate 72 can be pulled backward again, the fourth spring 73 is stretched, so that the rotating rod 103 can rotate and reset, and then the second locking plate 72 is released, and the second locking plate 72 moves forward and resets under the action of the fourth spring 73.

[0046] Reference Figure 2 , Fig.13 and Fig.14 As shown, a storage mechanism 8 is also included, and the storage mechanism 8 is convenient for pulling out the placement frame 101. The storage mechanism 8 includes a third connecting rod 81, a sliding plate 82, a pull-out rail 802 and a fifth spring 83. The third connecting rod 81 is symmetrically provided on the front and rear sides of the bottom of the connection frame 1 by welding. The lower side of the third connecting rod 81 is slidably provided with a sliding plate 82. The sliding plate 82 and the lower side of the adjacent third connecting rod 81 are connected with a fifth spring 83. The third connecting rod 81 is located on the inner side of the first connecting rod 44. The sliding plates 82 are connected to the placement frame 101 by welding. The pull-out rail 802 is provided on the left side of the placement frame 101 by welding. The pull-out rail 802 is slidably connected to the connection frame 1.

[0047] Reference Figure 2 , Fig.15 and Fig.16As shown, it also includes a driving unlocking mechanism 9, which can release the two special desks for children when the placement frame 101 is pulled out. The driving unlocking mechanism 9 includes a first driving plate 91, a fourth connecting rod 92, a second driving plate 93 and a sixth spring 94. The lower parts of the left and right sides of the placement frame 101 are both provided with a first driving plate 91 by welding, and the left and right sides of the top of the connecting frame 1 are both symmetrically welded with a fourth connecting rod 92, and the second driving plate 93 is slidably connected between the fourth connecting rods 92 on the left and right sides. After the second driving plate 93 moves upward, the first locking plate 53 can be moved upward. The sixth spring 94 is symmetrically connected between the top of the second driving plate 93 and the connecting frame 1, and the second driving plate 93 is in contact with the adjacent first locking plate 53.

[0048] When the desk is used alone, the placement frame 101 and the sliding plate 82 can be pulled upward by pulling out the track 802, and the fifth spring 83 is compressed, so that unused books can be placed in the placement frame 101, and then the pull-out track 802 is released. Under the action of the fifth spring 83, the pull-out track 802, the placement frame 101 and the sliding plate 82 move downward to reset. When the two spliced ​​desks need to be disassembled, the pull-out track 802 can be pulled upward, so that the placement frame 101 moves upward to drive the first driving plate 82 to move downward. Plate 91 moves upward, and the first driving plate 91 moves upward until it contacts the second driving plate 93 and then continues to move, which can make the second driving plate 93 move upward, and the sixth spring 94 is compressed. The second driving plate 93 moves upward, driving the first locking plate 53 to move upward, so that the two desks can be disassembled, and then the track 802 is released and pulled out, and the placement frame 101 can drive the first driving plate 91 to move downward and reset, so that the second driving plate 93 moves downward and reset under the action of the sixth spring 94, which facilitates the disassembly of the desks.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A splicable special desk for children, comprising a connecting frame (1), a placement frame (101), a first fixed plate (102), a rotating rod (103), a connecting track (2) and a connecting tube (3), wherein the middle part of the right side of the connecting frame (1) is provided with a connecting track (2), the middle part of the left side of the connecting frame (1) is provided with a connecting tube (3), the bottom of the connecting frame (1) is symmetrically provided with a first fixed plate (102), the middle part of the first fixed plate (102) is rotatably provided with a rotating rod (103), and the rear side of the connecting frame (1) is provided with a placement frame (101) for placing books for study in a sliding manner, wherein the connecting frame (1) is characterized in that: It also includes a folding table leg mechanism (4) and a locking mechanism (5); the connection frame (1) is provided with a folding table leg mechanism (4) capable of fixing the upright rotating rod (103); the connection rail (2) and the connection tube (3) are connected with a locking mechanism (5) capable of locking the connection rail (2) and the connection tube (3); The folding table leg mechanism (4) comprises a torsion spring (43), a first connecting rod (44), a locking rod (45) and a first spring (46); the torsion spring (43) is symmetrically connected between the rotating rod (103) and the adjacent first fixing plate (102); the first connecting rod (44) is symmetrically provided on the left and right sides of the bottom of the connecting frame (1); the first connecting rod (44) is slidably connected with a locking rod (45) capable of clamping the rotating rod (103); the locking rod (45) and the adjacent first connecting rod (44) are connected with a first spring (46); the locking rod (45) is slidably connected to the connecting frame (1); and the rotating rod (103) is symmetrically provided with a locking hole that fits with the locking rod (45); The locking mechanism (5) comprises a connecting plate (51), a first sliding plate (52), a first locking plate (53) and a second spring (54); a connecting plate (51) is provided in the middle of the connecting track (2); a first sliding plate (52) is provided in the middle of the connecting tube (3); a first locking plate (53) is slidably provided on the first sliding plate (52) and can cooperate with the connecting plate (51) to lock the connecting track (2) and the connecting tube (3); a second spring (54) is symmetrically connected between the upper side of the first locking plate (53) and the first sliding plate (52) in a front-to-back manner; and a locking hole that fits with the first locking plate (53) is symmetrically opened in the front-to-back manner on the connecting plate (51); The invention also comprises an automatic bending mechanism (6) capable of automatically rotating the rotating rod (103) when two special desks for children are spliced ​​together. The automatic bending mechanism (6) comprises a second fixing plate (61), a first spur gear (62), a second spur gear (602), a driving block (63), a second connecting rod (64), a driving rod (65), a third spring (66) and an inclined plate (67). The second fixing plates (61) are symmetrically arranged on both sides of the bottom of the connecting frame (1). The first spur gear (62) that can automatically rotate the rotating rod (103) when the second fixing plates (61) on the left and right sides are rotatably connected to each other. The second spur gear (62) that can automatically rotate the rotating rod (103) when the second fixing plates (61) on the left and right sides are rotatably connected to each other. The upper side of the rotating rod (103) is provided with a second spur gear. (602), the second spur gears (602) are meshed with the adjacent first spur gears (62), the first spur gears (62) are symmetrically provided with driving blocks (63) in the front and rear directions, the lower left and right sides of the connection frame (1) are symmetrically provided with second connecting rods (64) in a sliding manner in the front and rear directions, the second connecting rods (64) on the left and right sides are connected with driving rods (65) capable of causing the locking rod (45) to release the rotating rod (103), and the driving rods (65) can contact the driving blocks (63) when moving, and the second connecting rods (64) and the connection frame (1) are connected with third springs (66), and the upper parts of the locking rods (45) are provided with inclined panels (67), and the inclined panels (67) are in contact with the adjacent driving rods (65).

2. A splicable desk for children according to claim 1, characterized in that: The invention also comprises a fixing mechanism (7) capable of fixing the rotating rod (103) after rotation, the fixing mechanism (7) comprising a second sliding plate (71), a second locking plate (72) and a fourth spring (73), the second sliding plate (71) being provided at the middle rear side of the bottom of the connecting frame (1), the second locking plate (72) being slidably provided on the second sliding plate (71) for fixing the rotating rod (103) after rotation, and the fourth spring (73) being symmetrically connected between the second locking plate (72) and the front side of the second sliding plate (71).

3. A splicable desk for children according to claim 2, characterized in that: The invention also comprises a storage mechanism (8) for facilitating pulling out the placement frame (101). The storage mechanism (8) comprises a third connecting rod (81), a sliding plate (82), a pull-out rail (802) and a fifth spring (83). The third connecting rod (81) is symmetrically arranged on both the front and rear sides of the bottom of the connection frame (1). The lower side of the third connecting rod (81) is slidably provided with a sliding plate (82). The sliding plate (82) is connected to the lower side of the adjacent third connecting rod (81). The third connecting rod (81) is located inside the first connecting rod (44). The sliding plates (82) are connected to the placement frame (101). The pull-out rail (802) is arranged on the left side of the placement frame (101). The pull-out rail (802) is slidably connected to the connection frame (1).

4. A splicable desk for children according to claim 3, characterized in that: The invention also comprises a driving unlocking mechanism (9) capable of releasing the two special desks for children when the placement frame (101) is pulled out. The driving unlocking mechanism (9) comprises a first driving plate (91), a fourth connecting rod (92), a second driving plate (93) and a sixth spring (94). The lower parts of the left and right sides of the placement frame (101) are each provided with a first driving plate (91). The left and right sides of the top of the connection frame (1) are each provided with a fourth connecting rod (92) symmetrically arranged front and back. The fourth connecting rods (92) on the left and right sides are each slidably connected with a second driving plate (93) capable of moving the first locking plate (53) upward after moving upward. The top of the second driving plate (93) and the connection frame (1) are each symmetrically connected front and back with a sixth spring (94). The second driving plate (93) is in contact with the adjacent first locking plate (53).

5. The splicable special desk for children according to claim 1, characterized in that: The first sliding sleeve plate (52) and the first locking plate (53) are both made of iron.

Images