An electric toy base

By designing the electric toy base, including storage structure, lifting and adjustment structure and extended storage structure, the loss problem caused by unstable placement during use and display of electric toys is solved, stable storage and display are achieved, and placement flexibility is improved.

CN113995279BActive Publication Date: 2025-04-18SHANTOU CHENGHAI DISTRICT SUNNY SPRING TRADING CO LTD
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Patent Information

Application Number
CN202111351706.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-11-15
Publication Date
2025-04-18
Estimated Expiration
2041-11-15

AI Technical Summary

Technical Problem

During the use and display of electric toys, the lack of a reasonable base leads to the toys being placed scattered or unstable, which can easily cause losses.

Method used

An electric toy base is designed, including a frame, storage structure, lifting and adjusting structure and extended storage structure. The storage structure realizes the storage of electric toys through the collection box and the coverless collection cylinder; the lifting and adjustment structure uses the servo motor and the slide to adjust the placement height; the extended storage structure adds multiple placement positions through the support plate and the servo motor.

Benefits of technology

Through reasonable base design, stable storage and display of electric toys is achieved, losses caused by placement problems are reduced, and flexibility in placement and usage effect of toys are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an electric toy base, including a frame, a storage structure is installed on the lower wall of the frame, and a lifting and adjusting structure and an extended storage structure are provided on the upper wall of the frame; the storage structure includes: a collection box, a first bearing, a coverless collection cylinder and a spring; the collection box is placed on the lower wall of the frame, and a first rectangular through hole is opened on the side wall of the collection box. The beneficial effects of the present invention are that the storage structure facilitates the storage of electric toys, reduces the time for reasonable placement when they are not needed for placement or display, facilitates the adjustment of the placement height through the lifting and adjusting structure, facilitates the height adjustment when the electric toys are placed, and facilitates the expansion of the storage structure to increase multiple placement positions, so that multiple electric toys can be placed, reasonably supported, and can be rotated when placed, thereby improving the use effect.
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Description

Technical Field

[0001] The invention relates to the field of use of electric toys, in particular to an electric toy base. Background Art

[0002] When electric toys are used, in order to better place or display them, a reasonable base is needed to reduce the loss caused by scattered or unstable placement of electric toys and collisions with each other. Therefore, when electric toys are used or displayed, they need to be placed reasonably, thus requiring a reasonable base to reduce the loss caused by placement problems. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems and to design an electric toy base.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is an electric toy base, comprising a frame, a storage structure is installed on the lower wall of the frame, and a lifting and adjusting structure and an extended storage structure are provided on the upper wall of the frame.

[0005] The storage structure comprises: a collection box, a first bearing, a coverless collection cylinder and a spring;

[0006] The collecting box is placed on the lower wall of the frame, the side wall of the collecting box is provided with a first rectangular through hole, the inner wall of the collecting box is provided with a pair of first circular grooves corresponding to the positions, each of the first circular grooves is inserted with a first bearing, each of the first bearings is inserted with a first support column, the uncovered collecting barrel is placed on a pair of the first support columns, the inner wall of the collecting box is fixed with a pair of first pillars, the first pillars are provided with a first mounting hole, the first mounting hole is inserted with a first shaft, the first shaft is installed on a first connecting frame, the first connecting frame is provided with a second mounting hole, the second mounting hole is inserted with a second shaft, the second shaft is installed on a second pillar, the second pillar is connected to the upper end of the uncovered collecting barrel, one end of the spring is placed on the inner wall of the collecting box, and the other end is connected to the uncovered collecting barrel.

[0007] The lifting and lowering adjustment structure comprises: a first guide rod, a sliding body, a first servo motor and a first bearing frame;

[0008] The walls on both sides of the collection box are fixed with strip frames, each of the strip frames is provided with a strip groove, the first guide rod is respectively inserted into each of the strip grooves, the sliding body is placed on the first guide rod, a second support is fixed on the sliding body, a pair of the second supports are jointly installed with a fixing frame, a second circular through hole is provided on the upper wall of the fixing frame, the first servo motor is placed in the second circular through hole, the fixing frame is provided with a mounting groove matching the first servo motor, a first connecting rod is installed on the driving end of the first servo motor, and the first supporting frame is placed on the first connecting rod.

[0009] The extended storage structure includes: a support plate, a second servo motor and a second carrier;

[0010] Pads are fixed to the walls on both sides of the fixing frame, each of the pads is provided with a second circular groove, a second bearing is inserted in the second circular groove, a third pillar is installed on each of the second bearings, a connecting rod is fixed on each of the third pillars, the support plates are placed on the connecting rods on the left and right sides, a third circular through hole is provided on the support plate, the second servo motor is placed in the third circular through hole, a second connecting rod is installed on the driving end of the second servo motor, and a second supporting frame is installed on the second connecting rod.

[0011] A first rubber pad is laid on the first bearing frame, and a first enclosure is fixed at an edge of the first bearing frame.

[0012] A second rubber pad is laid on the second bearing frame, and a second enclosure is fixed at the edge of the second bearing frame.

[0013] A strip storage groove is provided on the side wall of the second supporting frame, a first slot is provided on the lower wall of the second supporting frame and located at the edge of the strip storage groove, a first vertical rod is inserted in the first slot, and a baffle matching the strip storage groove is connected to the lower wall of the second supporting frame via a hinge.

[0014] Vertical columns are fixed on the lower wall of the collection box body near the four corners, and a pad is installed on each of the vertical columns.

[0015] A blocking door matching the rectangular through hole is connected to the collecting box body via a hinge, an observation port is provided on the blocking door, and a transparent glass is inserted in the observation port.

[0016] Gaskets are installed on the sliding body, each of the gaskets is provided with a first plug hole, a second slot matching the first plug hole is provided in the strip-shaped slot, and a first plug rod overlapping the second slot is inserted in the first plug hole.

[0017] The support plate is provided with a second plug hole, the connecting rod is provided with a third slot matching the second plug hole, and the second plug rod overlapping the third slot is inserted into the second plug hole.

[0018] An electric toy base made by utilizing the technical solution of the present invention facilitates the storage of electric toys through a storage structure, reduces the time when they are not needed to be placed or displayed, and enables reasonable placement. The lifting and adjusting structure facilitates the adjustment of the placement height, which facilitates the height adjustment when the electric toys are placed. The expanded storage structure facilitates the addition of multiple placement positions, allowing multiple electric toys to be placed with reasonable support and can be rotated when placed, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an electric toy base according to the present invention;

[0020] Figure 2 It is a side sectional view of a collection box of an electric toy base according to the present invention;

[0021] Figure 3 It is a top view of a second enclosure of an electric toy base according to the present invention;

[0022] Figure 4 It is a bottom view of a support plate of an electric toy base according to the present invention;

[0023] Figure 5 It is a front view of a collection box of an electric toy base according to the present invention;

[0024] Figure 6 It is a top view of a first enclosure of an electric toy base according to the present invention;

[0025] In the figure, 1, frame; 2, collection box; 3, first bearing; 4, uncovered collection cylinder; 5, spring; 6, first support column; 7, first pillar; 8, first axis; 9, first connecting frame; 10, second axis; 11, second pillar; 12, first guide rod; 13, slide; 14, first servo motor; 15, first bearing frame; 16, strip frame; 17, second support; 18, second plug rod; 19, fixed frame; 20, first connecting rod; 21, support plate; 22, first plug rod; 23, second servo motor; 24, second bearing frame; 25, pad; 26, second bearing; 27, third pillar; 28, connecting rod; 29, first enclosure; 30, second enclosure; 31, first vertical pole; 32, baffle; 33, vertical pole; 34, baffle door. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-6As shown, an electric toy base includes a frame 1, a storage structure is installed on the lower wall of the frame 1, and a lifting and adjusting structure and an extended storage structure are provided on the upper wall of the frame 1; the storage structure includes: a collection box 2, a first bearing 3, a coverless collection cylinder 4 and a spring 5; the collection box 2 is placed on the lower wall of the frame 1, a first rectangular through hole is opened on the side wall of the collection box 2, a pair of first circular grooves corresponding to the positions are opened on the inner wall of the collection box 2, a first bearing 3 is inserted in each first circular groove, a first support column 6 is inserted on each first bearing 3, the coverless collection cylinder 4 is placed on a pair of first support columns 6, a pair of first pillars 7 are fixed on the inner wall of the collection box 2, a first mounting hole is opened on the first pillar 7, and a first mounting hole is inserted in the first mounting hole Axle 8, a first connecting frame 9 is installed on the first shaft 8, a second mounting hole is opened on the first connecting frame 9, a second shaft 10 is inserted into the second mounting hole, a second pillar 11 is installed on the second shaft 10, the second pillar 11 is connected to the upper end of the uncovered collecting cylinder 4, one end of the spring 5 is placed on the inner wall of the collecting box body 2, and the other end is connected to the uncovered collecting cylinder 4; the lifting and lowering adjustment structure includes: a first guide rod 12, a slide 13, a first servo motor 14 and a first carrier 15; strip frames 16 are fixed to the walls of both sides of the collecting box body 2, each strip frame 16 is opened with a strip slot, the first guide rod 12 is respectively inserted into each strip slot, the slide 13 is placed on the first guide rod 12, and a second support 17 is fixed on the slide 13, a pair of second supports 17 A fixing frame 19 is installed on both sides of the fixing frame 19, a second circular through hole is opened on the upper wall of the fixing frame 19, the first servo motor 14 is placed in the second circular through hole, a mounting groove matching the first servo motor 14 is opened on the fixing frame 19, a first connecting rod 20 is installed on the driving end of the first servo motor 14, and the first carrier frame 15 is placed on the first connecting rod 20; the extended storage structure includes: a support plate 21, a second servo motor 23 and a second carrier frame 24; pads 25 are fixed on the walls on both sides of the fixing frame 19, each pad 25 is opened on a second circular groove, a second bearing 26 is inserted in the second circular groove, each second bearing 26 is installed on a third support 27, each third support 27 is fixed with a connecting rod 28, and the support plate 21 is placed on the left and right A third circular through hole is provided on the connecting rods 28 on both sides and the supporting plate 21, and the second servo motor 23 is placed in the third circular through hole. A second connecting rod 28 is installed on the driving end of the second servo motor 23, and a second carrier 24 is installed on the second connecting rod 28; a first rubber pad is laid on the first carrier 15, and a first enclosure 29 is fixed on the edge of the first carrier 15; a second rubber pad is laid on the second carrier 24, and a second enclosure 30 is fixed on the edge of the second carrier 24; a strip storage groove is provided on the side wall of the second carrier 24, and a first slot is provided on the lower wall of the second carrier 24 and located at the edge of the strip storage groove, and a first vertical rod 31 is inserted in the first slot, and a baffle 32 matching the strip storage groove is connected to the lower wall of the second carrier 24 through a hinge;The lower wall of the collection box 2 and near the four corners are fixed with columns 33, and each column 33 is installed with a pad; the collection box 2 is connected with a door 34 matching the rectangular through hole through a hinge, and the door 34 is provided with an observation port, and a transparent glass is inserted in the observation port; a gasket is installed on the slide 13, and each gasket is provided with a first plug hole, and a second slot matching the first plug hole is provided in the strip groove, and a first plug rod 22 overlapping the second slot is inserted in the first plug hole; a second plug hole is provided on the support plate 21, and a third slot matching the second plug hole is provided on the connecting rod 28, and a second plug rod 18 overlapping the third slot is inserted in the second plug hole. ;

[0027] The present embodiment is characterized in that it comprises a frame 1, a storage structure is installed on the lower wall of the frame 1, and a lifting and adjusting structure and an extended storage structure are provided on the upper wall of the frame 1;

[0028] The storage structure includes: a collection box 2, a first bearing 3, a coverless collection cylinder 4 and a spring 5;

[0029] The collecting box 2 is placed on the lower wall of the frame 1, and a first rectangular through hole is provided on the side wall of the collecting box 2. A pair of first circular grooves corresponding to the positions are provided on the inner wall of the collecting box 2, and a first bearing 3 is inserted in each of the first circular grooves, and a first support column 6 is inserted on each of the first bearings 3. The uncovered collecting cylinder 4 is placed on the pair of first support columns 6, and a pair of first pillars 7 are fixed on the inner wall of the collecting box 2, and a first mounting hole is provided on the first pillar 7, and a first shaft 8 is inserted in the first mounting hole, and a first connecting frame 9 is installed on the first shaft 8, and a second mounting hole is provided on the first connecting frame 9, and the second mounting hole is provided on the first connecting frame 9. A second shaft 10 is inserted into the hole, and a second pillar 11 is installed on the second shaft 10. The second pillar 11 is connected to the upper end of the uncovered collecting tube 4. One end of the spring 5 is placed on the inner wall of the collecting box 2, and the other end is connected to the uncovered collecting tube 4. The storage structure is convenient for storing electric toys, and reduces the time when they are not needed to be placed or displayed, so that they can be placed reasonably. The lifting and adjusting structure is convenient for adjusting the placement height, which is convenient for adjusting the height when the electric toys are placed. The expanded storage structure is convenient for adding multiple placement positions, so that multiple electric toys can be placed, reasonably supported, and can be rotated when placed, thereby improving the use effect.

[0030] In this embodiment, it includes a frame 1, a storage structure is installed on the lower wall of the frame 1, and a lifting and adjusting structure and an extended storage structure are provided on the upper wall of the frame 1;

[0031] The storage structure includes: a collection box 2, a first bearing 3, a coverless collection cylinder 4 and a spring 5;

[0032] The collecting box body 2 is placed on the lower wall of the frame body 1, and a first rectangular through hole is provided on the side wall of the collecting box body 2. A pair of first circular grooves corresponding to the positions are provided on the inner wall of the collecting box body 2, and a first bearing 3 is inserted in each of the first circular grooves, and a first supporting column 6 is inserted on each of the first bearings 3. The uncovered collecting cylinder 4 is placed on the pair of first supporting columns 6, and a pair of first supporting columns 7 are fixed on the inner wall of the collecting box body 2. A first mounting hole is provided on the first supporting column 7, and a first shaft 8 is inserted in the first mounting hole. A first connecting frame 9 is installed on the first shaft 8, and a second mounting hole is provided on the first connecting frame 9. A second shaft 10 is inserted in the second mounting hole, and a second supporting column 11 is installed on the second shaft 10. The second supporting column 11 is connected to the upper end of the uncovered collecting cylinder 4, and one end of the spring 5 is placed on the inner wall of the collecting box body 2, and the other end is connected to the uncovered collecting cylinder 4;

[0033] It should be noted that the first rectangular through hole on the collection box 2 on the lower wall of the frame 1 is convenient for placing electric toys inside the uncovered collection tube 4. The uncovered collection tube 4 is supported by the first support column 6 on the first bearing 3. The first bearing 3 itself can rotate, so the first support column 6 can rotate, so that the uncovered collection tube 4 can swing, so that the upper end of the uncovered collection tube 4 is swung out through the rectangular through hole, which is convenient for placing the electric toys to be placed inside the uncovered collection tube 4. The first pillar 7 plays a supporting role, which is used to support the first connecting frame 9 on the first axis 8. The second pillar 11 supported by the second axis 10 on the first connecting frame 9 is overlapped with the uncovered collection tube 4. Therefore, when the uncovered collection tube 4 swings, the second pillar 11 is supported by the first connecting frame 9 and the second axis 10 on the first axis 8, so it can open and close and stretch, so it will not hinder the swing of the uncovered collection tube 4, and the spring 5 plays a traction and reset role.

[0034] The lifting and lowering adjustment structure includes: a first guide rod 12, a slide body 13, a first servo motor 14 and a first carrier 15;

[0035] Strip frames 16 are fixed to the walls on both sides of the collection box 2, and each strip frame 16 is provided with a strip slot, and the first guide rod 12 is respectively inserted into each strip slot, and the slide 13 is placed on the first guide rod 12, and a second support 17 is fixed on the slide 13, and a pair of second supports 17 are jointly installed with a fixing frame 19, and a second circular through hole is opened on the upper wall of the fixing frame 19, and the first servo motor 14 is placed in the second circular through hole, and a mounting groove matching the first servo motor 14 is opened on the fixing frame 19, and a first connecting rod 20 is installed on the driving end of the first servo motor 14, and the first carrier frame 15 is placed on the first connecting rod 20;

[0036] It should be noted that: the strip frames 16 on both sides of the collection box 2 play a supporting role, and are used for the slide 13 on the first guide rod 12. The slide 13 can move up and down, driving the fixed frame 19 to move up and down, thereby adjusting the use height, so as to adjust the use height of the first load-bearing frame 15 and the second load-bearing frame 24. The first load-bearing frame 15 is supported by the first servo motor 14, and the driving end of the first servo motor 14 can rotate, thereby driving the first load-bearing frame 15 to rotate, so that it can rotate when the items are placed.

[0037] The extended storage structure includes: a support plate 21, a second servo motor 23 and a second carrier 24;

[0038] Pads 25 are fixed to both side walls of the fixing frame 19, each pad 25 is provided with a second circular groove, a second bearing 26 is inserted in the second circular groove, a third support 27 is installed on each second bearing 26, a connecting rod 28 is fixed on each third support 27, a support plate 21 is placed on the connecting rods 28 on the left and right sides, a third circular through hole is provided on the support plate 21, a second servo motor 23 is placed in the third circular through hole, a second connecting rod 28 is installed on the driving end of the second servo motor 23, and a second carrier 24 is installed on the second connecting rod 28;

[0039] It should be noted that: the pad 25 plays a supporting role, and is used to support the third pillar 27 on the second bearing 26. The third pillar 27 is used to support the support plate 21. Through the second bearing 26, the support plate 21 can swing and can be lifted and placed horizontally. The support plate 21 plays a supporting role and is used to support the second servo motor 23. The second support frame 24 on the driving end of the second servo motor 23 is convenient for placing electric toys. The second servo motor 23 rotates, driving the second support frame 24 to rotate, so that the electric toy can be placed and rotated. When not in use, the support plate 21 can be swung downward and can be placed vertically.

[0040] As a preferred technical solution, further, a first rubber pad is laid on the first carrier frame 15, and a first enclosure 29 is fixed on the edge of the first carrier frame 15, so as to facilitate the placement of the electric toy.

[0041] As a preferred technical solution, further, a second rubber pad is laid on the second carrier frame 24, and a second enclosure 30 is fixed on the edge of the second carrier frame 24 to facilitate the placement of the electric toy.

[0042] As a preferred technical solution, further, a strip storage groove is provided on the side wall of the second carrier rack 24, a first slot is provided on the lower wall of the second carrier rack 24 and located at the edge of the strip storage groove, a first vertical rod 31 is inserted in the first slot, and a baffle 32 matching the strip storage groove is connected to the lower wall of the second carrier rack 24 through a hinge; the first vertical rod 31 is inserted into the first slot, so as to provide reasonable support when the second carrier rack 24 is placed horizontally.

[0043] As a preferred technical solution, further, columns 33 are fixed on the lower wall of the collection box 2 and near the four corners, and a pad is installed on each column 33.

[0044] As a preferred technical solution, further, a baffle door 34 matching the rectangular through hole is hingedly connected to the collection box 2, and an observation port is provided on the baffle door 34, in which transparent glass is inserted; the baffle door 34 is used to shield the rectangular through hole.

[0045] As a preferred technical solution, further, a gasket is installed on the sliding body 13, each gasket is provided with a first socket, a second slot matching the first socket is provided in the strip groove, and a first plug rod 22 overlapping with the second slot is inserted in the first socket; through the first plug rod 22, when the sliding body 13 moves up and down, the sliding body 13 is fixed, thereby fixing the use height of the fixing frame 19 to achieve the height for fixing the placement of the electric toy.

[0046] As a preferred technical solution, further, a second socket is provided on the connecting rod 28, a third slot matching the second socket is provided on the pad 25, and a second plug rod 18 overlapping the third slot is inserted into the second socket; the second plug rod 18 facilitates fixing the connecting rod 28, thereby fixing the use angle of the support plate 21.

[0047] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. An electric toy base, comprising a frame (1), characterized in that: The lower wall of the frame (1) is provided with a storage structure, and the upper wall of the frame (1) is provided with a lifting and lowering adjustment structure and an extended storage structure; the storage structure comprises: a collection box (2), a first bearing (3), a coverless collection cylinder (4) and a spring (5); The collection box (2) is arranged on the lower wall of the frame (1); a first rectangular through hole is provided on the side wall of the collection box (2); a pair of first circular grooves corresponding to each other are provided on the inner wall of the collection box (2); a first bearing (3) is inserted into each of the first circular grooves; a first support column (6) is inserted on each of the first bearings (3); the coverless collection cylinder (4) is arranged on the pair of first support columns (6); a pair of first pillars (7) are fixed on the inner wall of the collection box (2); the first A first mounting hole is provided on the support column (7), a first shaft (8) is inserted into the first mounting hole, a first connecting frame (9) is installed on the first shaft (8), a second mounting hole is provided on the first connecting frame (9), a second shaft (10) is inserted into the second mounting hole, a second support column (11) is installed on the second shaft (10), the second support column (11) is connected to the upper end of the uncovered collecting cylinder (4), one end of the spring (5) is placed on the inner wall of the collecting box (2), and the other end is connected to the uncovered collecting cylinder (4); The lifting and lowering adjustment structure comprises: a first guide rod (12), a sliding body (13), a first servo motor (14) and a first bearing frame (15); The collecting box (2) is fixed with strip frames (16) on both side walls, each of the strip frames (16) is provided with a strip slot, the first guide rod (12) is respectively inserted into each of the strip slots, the sliding body (13) is arranged on the first guide rod (12), a second support (17) is fixed on the sliding body (13), a pair of the second supports (17) are jointly provided with a fixing frame (19), a second circular through hole is provided on the upper wall of the fixing frame (19), the first servo motor (14) is arranged in the second circular through hole, the fixing frame (19) is provided with a mounting groove matching the first servo motor (14), a first connecting rod (20) is installed on the driving end of the first servo motor (14), and the first bearing frame (15) is arranged on the first connecting rod (20); The extended storage structure comprises: a support plate (21), a second servo motor (23) and a second bearing frame (24); pads (25) are fixed to the wall surfaces on both sides of the fixed frame (19); each pad (25) is provided with a second circular groove; a second bearing (26) is inserted in the second circular groove; a third pillar (27) is installed on each second bearing (26); a connecting rod (28) is fixed on each third pillar (27); the support plate (21) is arranged on the connecting rods (28) on the left and right sides; a third circular through hole is provided on the support plate (21); the second servo motor (23) is arranged in the third circular through hole; a second connecting rod is installed on the driving end of the second servo motor (23); and the second bearing frame (24) is installed on the second connecting rod.

2. An electric toy base according to claim 1, characterized in that: A first rubber pad is laid on the first supporting frame (15), and a first enclosure (29) is fixed on the edge of the first supporting frame (15).

3. An electric toy base according to claim 1, characterized in that: A second rubber pad is laid on the second bearing frame (24), and a second enclosure (30) is fixed at the edge of the second bearing frame (24).

4. The electric toy base according to claim 1, characterized in that: The side wall of the second carrier frame (24) is provided with a strip storage groove, the lower wall of the second carrier frame (24) is provided with a first slot located at the edge of the strip storage groove, a first vertical rod (31) is inserted into the first slot, and the lower wall of the second carrier frame (24) is connected to a baffle (32) matching the strip storage groove via a hinge.

5. The electric toy base according to claim 1, characterized in that: Vertical columns (33) are fixed on the lower wall surface of the collection box (2) and near the four corners, and a pad is installed on each of the vertical columns (33).

6. The electric toy base according to claim 1, characterized in that: A blocking door (34) matching the rectangular through hole is connected to the collection box body (2) via a hinge, and an observation port is provided on the blocking door (34), in which a transparent glass is inserted.

7. The electric toy base according to claim 1, characterized in that: The slide body (13) is provided with a gasket, each of which is provided with a first insertion hole, a second insertion slot matching the first insertion hole is provided in the strip-shaped slot, and a first insertion rod (22) overlapping the second insertion slot is inserted in the first insertion hole.

8. An electric toy base according to claim 2, characterized in that: The support plate (21) is provided with a second insertion hole, the connecting rod (28) is provided with a third slot matching the second insertion hole, and the second insertion hole is inserted with a second insertion rod (18) overlapping the third slot.

Citation Information

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