Connecting structure of child draw-bar box

Abstract

The utility model relates to a connecting structure of a child draw-bar box, which comprises a seat plate, a locking plate is fixedly arranged at the bottom of the seat plate, a support fixing plate for inserting a support is hinged between the locking plate and the seat plate, and the support fixing plate can rotate along the outer wall of the locking plate. A plurality of symmetrical first clamping grooves are formed in the outer wall of the locking plate, the support fixing plate is provided with first clamping blocks clamped with the first clamping grooves through a locking structure, the locking structure can control the clamping state of the first clamping blocks and the first clamping grooves, and the locking structure locks the clamping state of the first clamping blocks and the first clamping grooves. The first clamping groove formed in the outer wall of the locking plate provides two different states of folding and unfolding of the support, the stable connecting structure improves the safety of the product, the folding process is simple and convenient, the use experience of a user on the product is enhanced, and meanwhile potential safety hazards caused by loosening of the support do not need to be worried about.

Description

TECHNICAL FIELD

[0001] The utility model relates to trolley case technical field, concretely relates to a connecting structure of children trolley case. BACKGROUND

[0002] The children riding trolley case is an innovative design of travel or daily use luggage, which is specially designed for children, combines the functions of riding toys and traditional trolley cases, has sufficient storage space to load children's clothes, toys and other necessities, and is equipped with foldable foot pedals and handles.

[0003] The utility model discloses a trolley case with the function of the seat stroller, including the box and the folding dolly, the box upper portion is equipped with the inclined plane groove, and the box lower part is equipped with the dolly fixed groove, the folding dolly includes the base, the fixed rod, the telescopic rod and the folding frame, the fixed rod upper end is equipped with the inclined plane seat, and the fixed rod lower end is connected the base, and the base both sides are installed with first wheel, the folding frame is A-shaped, and the folding frame both sides lower end is installed with second wheel, and the folding frame upper end is connected in the inclined plane seat bottom through quick hinging piece, the inclined plane seat is inserted into the inclined plane groove on the box, and the base is fixed in the dolly fixed groove of the box lower part through screw, the base and the box are all equipped with the recess of containing the folding frame, and the trolley case is connected with second wheel through hinging piece, and is fixed between the box through screw, and under long -time use, it is easy to cause loosening and cause the safety problem, and when needing folding, it needs to carry out the dismantling folding process and passes complex, therefore, the technology still has certain improvement space. SUMMARY

[0004] The utility model relates to the technical problem that the connecting structure of children trolley case is solved in view of the deficiency of above -mentioned prior art.

[0005] In order to realize above -mentioned purpose, the utility model provides the following technical scheme, a connecting structure of children trolley case, including seat board, its characterized in that: the seat board bottom is fixedly provided with locking plate, the locking plate and seat board are hinged and are equipped with the support fixed plate of support insertion between them, the support fixed plate can rotate along the outer wall of locking edition, the outer wall of locking edition is equipped with a plurality of symmetrical first clamping grooves, the support fixed plate is equipped with the first clamping block of first clamping groove clamping through control component, and the locking structure can control the clamping state of first clamping block and first clamping groove.

[0006] The technical scheme is adopted, the locking plate is additionally arranged at the bottom of the seat plate, the support fixing plate is hingedly arranged between the locking plate and the seat plate, the locking structure is used to lock the clamping state of the first clamping block and the first clamping groove, the first clamping groove provided on the outer wall of the locking plate provides two different states of folding and unfolding of the support, the locking structure can lock or release the clamping between the first clamping groove and the first clamping block, when the trolley case needs to be folded, the support fixing plate drives the support to rotate to the clamping groove in the folded state along the outer wall, and the locking structure is locked; when the trolley case needs to be unfolded, the locking structure contacts the current state, and the support fixing plate rotates to the first clamping groove in the unfolded state along the outer wall, and then the locking structure is locked, the folding process is simple, the use experience of the product by the user is enhanced, and the safety hidden danger caused by loosening of the support does not need to be worried about during use, so that the children can use the trolley case more safely.

[0007] The connecting structure of the trolley case for children can be further provided as follows: the locking structure comprises a mounting cavity opened on one side of the support fixing plate towards the locking plate, the mounting cavity is provided with a mounting plate for mounting the first clamping block, the mounting plate can axially move in the mounting cavity, the support fixing plate is provided with a first through hole, the mounting plate is fixedly provided with a pull pin on one side of the first through hole, the pull pin penetrates the first through hole, an elastic structure is arranged between the mounting plate and the mounting cavity to provide an outward expansion force for the mounting plate, and the first clamping block is clamped with the first clamping groove on the locking plate through the elastic structure.

[0008] The axial movement of the mounting plate in the mounting cavity enables the first clamping block to be clamped with the first clamping groove on the locking plate flexibly, the elastic structure provides an outward expansion force for the mounting plate to provide a continuous contact pressure between the first clamping block and the first clamping groove, and the stability and reliability of the connection are ensured, the pull pin is fixedly arranged on one side of the first through hole of the mounting plate, the first clamping block is driven to be separated from the clamping state of the first clamping groove by pulling the pull pin to axially move in the mounting cavity, and the first clamping block is clamped with the first clamping groove to be locked when the pull pin is released.

[0009] The connecting structure of the trolley case for children can be further provided as follows: the elastic structure comprises a plurality of connecting columns arranged in the mounting cavity and provided with spring sleeves, the mounting plate is provided with an abutting groove on one side of the mounting cavity for abutting the spring, the abutting groove is provided with a second through hole for the connecting column to penetrate, and the mounting plate axially moves in the mounting cavity through the connecting column and the connecting groove.

[0010] Using the above technical solution, the spring is sleeved on the connecting column and abuts against the abutment groove of the mounting plate. Through the elastic force of the spring, the mounting plate can move axially in the mounting cavity, so that the first snap-fit ​​block can be tightly snapped into the first snap-fit ​​groove on the locking plate, providing the mounting plate with a continuous and stable outward expansion force.

[0011] The connection structure of the above-mentioned children's trolley case can be further configured as follows: the bracket fixing plate has fixing holes at both ends, the locking plate has movable holes at both ends, the bracket fixing plate and the locking plate are hinged by a connecting shaft, and the connecting shaft passes through the fixing holes of the bracket fixing plate and the movable holes of the locking plate to enable the connecting shaft and the bracket fixing plate to rotate axially.

[0012] The above technical solution has fixed holes at both ends of the bracket fixing plate and movable holes at both ends of the locking plate. The connecting shaft can rotate freely when passing through the fixed holes and movable holes, realizing the hinge between the bracket fixing plate and the locking plate. This not only improves the flexibility of the overall structure, but also ensures the stability during use. When it is necessary to adjust the angle or position, it can be achieved by simple axial rotation without complicated disassembly and reinstallation.

[0013] The connection structure of the above-mentioned children's trolley case can be further configured such that: one end of the pull pin has a connection hole, the connection hole has a pull ring, and the pull ring can rotate within the connection hole.

[0014] Using the above technical solution, the pull ring set through the pull pin connection hole can easily pull the pull pin to control the rotation and loosening between the locking plate and the bracket fixing plate. The pull ring can rotate within the connection hole, and the user can pull the pull ring at various angles for convenient use.

[0015] The beneficial effects of this utility model are as follows: The locking structure locks the first locking block and the first locking groove into a locking state. The first locking groove on the outer wall of the locking plate provides two different states of the bracket: folded and unfolded. The stable connection structure not only improves the safety of the product, but also makes the folding process simple and enhances the user's experience of using the product. At the same time, there is no need to worry about the safety hazards caused by the bracket loosening. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention;

[0017] Figure 2 This is an exploded view of the structure of this utility model;

[0018] Figure 3 This is a structural diagram of the bracket fixing plate of this utility model;

[0019] Figure 4 This is a structural diagram of the mounting plate of this utility model;

[0020] Label annotations: 1-Seat plate, 2-Locking plate, 3-Bracket fixing plate, 4-First snap-fit ​​groove, 5-First snap-fit ​​block, 6-Mounting cavity, 7-Mounting plate, 8-First through hole, 9-Pull pin, 10-Connecting post, 11-Abutting groove, 12-Second through hole, 13-Spring, 14-Fixing hole, 15-Moving hole, 16-Connecting shaft, 17-Connecting hole, 18-Pull ring. Detailed Implementation

[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0022] like Figures 1-3The present invention provides the following technical solution: a connection structure for a children's trolley case, including a seat plate 1, a locking plate 2 fixedly disposed at the bottom of the seat plate 1, a bracket fixing plate 3 for bracket insertion hinged between the locking plate 2 and the seat plate 1, the bracket fixing plate 3 being rotatable along the outer wall of the locking plate, the outer wall of the locking plate being provided with a plurality of symmetrical first snap-fit ​​grooves 4, the bracket fixing plate 3 being provided with first snap-fit ​​blocks 5 snapping into the first snap-fit ​​grooves 4 via a control component, the locking structure being able to control the snap-fit ​​state of the first snap-fit ​​blocks 5 and the first snap-fit ​​grooves 4, by adding a locking plate 2 at the bottom of the seat plate 1, and hingedly disposing of the bracket fixing plate 3 between the locking plate 2 and the seat plate 1, and simultaneously using the locking structure to lock the snap-fit ​​state of the first snap-fit ​​blocks 5 and the first snap-fit ​​grooves 4, the first snap-fit ​​grooves 4 provided on the outer wall of the locking plate providing two different states of bracket folding and unfolding, the locking structure being able to lock or release the snap-fit ​​between the first snap-fit ​​grooves 4 and the first snap-fit ​​blocks 5, when the trolley case needs to be folded, the bracket fixing plate 3 drives the bracket to rotate along the outer wall into the snap-fit ​​groove in the folded state, and locking is achieved through the locking structure;When the suitcase needs to be unfolded and the locking structure is engaged in its current state, the bracket fixing plate 3 rotates along the outer wall to the first latching groove 4 in the unfolded state, and then locks itself through the locking structure. The folding process is simple, enhancing the user experience. There is no need to worry about safety hazards caused by a loose bracket, making it safer for children to use. The locking structure includes a mounting cavity 6 on the side of the bracket fixing plate 3 facing the locking plate. The mounting cavity 6 contains a mounting plate 7 for mounting the first latching block 5. The mounting plate 7 can move axially within the mounting cavity 6. The bracket fixing plate 3 is positioned... A first through hole 8 is provided in the mounting cavity 6. A pull pin 9 is fixed on the mounting plate 7 facing the first through hole 8. The pull pin 9 penetrates and is disposed in the first through hole 8. An elastic structure is provided between the mounting plate 7 and the mounting cavity 6 to provide outward expansion force for the mounting plate 7. The first locking block 5 is engaged with the first locking groove 4 on the locking plate 2 through the elastic structure. The axial movement capability of the mounting plate 7 in the mounting cavity 6 allows the first locking block 5 to flexibly engage with the first locking groove 4 on the locking plate 2. The application of the elastic structure provides outward expansion force for the mounting plate 7. The continuous contact pressure between the first locking block 5 and the first locking groove 4 ensures the stability and reliability of the connection. A pull pin 9 is fixedly provided on the mounting plate 7 facing the first through hole 8. Pulling the pull pin 9 causes the mounting plate 7 to move axially within the mounting cavity 6, causing the first locking block 5 on the mounting plate 7 to disengage from the first locking groove 4. When the pull pin 9 is released, the first locking block 5 and the first locking groove 4 engage and lock. The elastic structure includes several connecting posts 10 within the mounting cavity 6 for springs 13 to be sleeved and installed. The mounting plate 7 faces the first through hole 8. A receiving groove 11 for the spring 13 to abut on one side of the mounting cavity 6. A second through hole 12 for the connecting post 10 to pass through the receiving groove 11. The mounting plate 7 moves axially within the mounting cavity 6 via the connecting post 10 and the receiving groove. The spring 13 is sleeved on the connecting post 10 and abuts against the receiving groove 11 of the mounting plate 7. Through the elastic force of the spring 13, the mounting plate 7 can move axially within the mounting cavity 6, thereby allowing the first locking block 5 to tightly engage with the first locking groove 4 on the locking plate 2, providing a continuous and stable outward expansion force for the mounting plate 7.

[0023] like Figures 1-3The present invention provides the following technical solution: a connecting structure for a children's trolley case. The bracket fixing plate 3 has fixing holes 14 at both ends, and the locking plate 2 has movable holes 15 at both ends. The bracket fixing plate 3 and the locking plate are hinged together by a connecting shaft 16. The connecting shaft 16 passes through the fixing holes 14 of the bracket fixing plate 3 and the movable holes 15 of the locking plate 2, enabling the connecting shaft 16 and the bracket fixing plate 3 to rotate axially. The bracket fixing plate 3 has fixing holes 14 at both ends, and the locking plate 2 has movable holes 15 at both ends. The connecting shaft 16 can rotate freely when passing through the fixing holes 14 and the movable holes 15, thus realizing the connection between the bracket fixing plate 3 and the locking plate. The hinge between the two not only improves the flexibility of the overall structure, but also ensures the stability during use. When the angle or position needs to be adjusted, it can be achieved by simple axial rotation without complicated disassembly and reinstallation. One end of the pull pin 9 has a connecting hole 17, and a pull ring 18 is provided in the connecting hole 17. The pull ring 18 can rotate in the connecting hole 17. The pull ring 18 set in the connecting hole 17 of the pull pin 9 can easily pull the pull pin 9 to control the rotation and loosening between the locking plate 2 and the bracket fixing plate 3. The pull ring 18 can rotate in the connecting hole 17, and the user can pull the pull ring 18 at various angles for convenient use.

[0024] The beneficial effects of this utility model are as follows: The locking structure locks the first locking block 5 and the first locking groove 4 into a locking state. The first locking groove 4 set on the outer wall of the locking plate provides two different states of bracket folding and unfolding. The stable connection structure not only improves the safety of the product, but also makes the folding process simple and enhances the user's experience of using the product. At the same time, there is no need to worry about the safety hazards caused by the bracket loosening.

Claims

1. A connecting structure of a child trolley case, comprising a seat plate, characterized in that: The seat plate bottom is fixedly provided with a locking plate, a support fixing plate for inserting the support is hingedly arranged between the locking plate and the seat plate, the support fixing plate can rotate along the outer wall of the locking plate, the outer wall of the locking plate is provided with a plurality of symmetrical first clamping grooves, the support fixing plate is provided with a first clamping block clamped with the first clamping groove through a locking structure, and the locking structure can control the clamping state of the first clamping block and the first clamping groove.

2. The connecting structure of a child trolley case according to claim 1, characterized in that: The locking structure comprises a mounting cavity opened on one side of the support fixing plate towards the locking plate, a mounting plate for mounting the first clamping block is arranged in the mounting cavity, the mounting plate can axially move in the mounting cavity, the support fixing plate is provided with a first through hole in the mounting cavity, a draw pin is fixedly arranged on one side of the mounting plate towards the first through hole, the draw pin is arranged through the first through hole, an elastic structure is arranged between the mounting plate and the mounting cavity to provide an outward expansion force for the mounting plate, and the first clamping block is clamped with the first clamping groove on the locking plate through the elastic structure.

3. The connecting structure of a child trolley case according to claim 2, characterized in that: The elastic structure comprises a plurality of connecting columns arranged in the mounting cavity and provided with spring sleeves, the mounting plate is provided with an abutting groove for abutting the spring on one side of the mounting cavity, a second through hole for the connecting column to pass through is arranged in the abutting groove, and the mounting plate and the connecting groove axially move in the mounting cavity through the connecting column.

4. The connecting structure of a child trolley case according to any one of claims 1-3, characterized in that: The support fixing plate is provided with a fixing hole at both ends, the locking plate is provided with a movable hole at both ends, the support fixing plate and the locking plate are hingedly connected through a connecting shaft, and the connecting shaft is arranged through the fixing hole of the support fixing plate and the movable hole of the locking plate to enable the connecting shaft and the support fixing plate to axially rotate.

5. The connecting structure of a child trolley case according to claim 2, characterized in that: One end of the draw pin is provided with a connecting hole, a pull ring is arranged in the connecting hole, and the pull ring can rotate in the connecting hole.

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