Carrier framework

Abstract

A front side frame and a rear side frame are arranged between a left side frame and a right side frame, a bottom frame is further arranged at the lower end of the left side frame and the lower end of the right side frame, the left side frame comprises a first vertical rod and a second vertical rod, a left frame body is arranged between the first vertical rod and the second vertical rod, and the right side frame comprises a third vertical rod and a fourth vertical rod. A right frame body is arranged between the third vertical rod and the fourth vertical rod, the first vertical rod and the third vertical rod are provided with front sliding pieces which can slide relative to the first vertical rod and the third vertical rod and can drive the front side frame to be unfolded or folded during sliding, and front transmission rods which can drive the front sliding pieces to slide during rotation of the left frame body and the right frame body and the corresponding front sliding pieces are arranged between the left frame body and the corresponding front sliding pieces and between the right frame body and the corresponding front sliding pieces. Rear sliding parts which can slide relative to the second vertical rod and the fourth vertical rod and can drive the rear side frame to be unfolded or folded during sliding are arranged on the second vertical rod and the fourth vertical rod, and rear transmission rods which can drive the rear sliding parts to slide during rotation of the left frame body and the right frame body and the corresponding rear sliding parts are arranged between the left frame body and the corresponding rear sliding parts and between the right frame body and the corresponding rear sliding parts. The folding chair is small in size after being folded.

Description

Technical Field

[0001] The utility model relates to a vehicle skeleton.

Background Art

[0002] Vehicles are common products in people's daily lives, such as baby cribs, playpens, and so on. A vehicle generally includes a vehicle skeleton and a cloth cover sleeved on the vehicle skeleton, and children can sleep or play in the bearing space of the vehicle skeleton.

[0003] Currently, the vehicle skeletons on the market can generally be unfolded or folded. When in the unfolded state, they are used, and when in the folded state, they are convenient for carrying or storing.

[0004] The Chinese utility model patent (publication number CN221083241U) discloses a baby crib structure, but this baby crib structure is relatively complex and can only be folded in one direction, and the volume is still large after folding.

[0005] Therefore, the present utility model is precisely produced based on the above deficiencies.

Content of the Utility Model

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a vehicle skeleton with a simple structure and a small volume after folding.

[0007] The present utility model is realized through the following technical solutions:

[0008] A vehicle skeleton includes a left frame 1 and a right frame 2 that are spaced apart from each other and can be unfolded or folded. There are a front frame 3 and a rear frame 4 that can be unfolded or folded between the left frame 1 and the right frame 2. The lower ends of the left frame 1 and the right frame 2 are also provided with a bottom frame 5 that can be unfolded or folded. The left frame 1, the right frame 2, the front frame 3, the rear frame 4, and the bottom frame 5 enclose a loading space 100 for loading children or items. The left frame 1 includes a first vertical rod 11 and a second vertical rod 12. There is a left frame body 13 between the first vertical rod 11 and the second vertical rod 12 that can rotate relative to the two and can drive the two to move away from or close to each other when rotating. The right frame 2 includes a third vertical rod 23 and a fourth vertical rod 24. There is a right frame body 25 between the third vertical rod 23 and the fourth vertical rod 24 that can rotate relative to the two and can drive the two to move away from or close to each other when rotating. There are front sliding members 61 on the first vertical rod 11 and the third vertical rod 23 that can slide relative to them and can drive the front frame 3 to unfold or fold when sliding. There are front transmission rods 62 between the left frame body 13 and the right frame body 25 and the corresponding front sliding members 61 that can drive the front sliding members 61 to slide when the two rotate. There are rear sliding members 63 on the second vertical rod 12 and the fourth vertical rod 24 that can slide relative to them and can drive the rear frame 4 to unfold or fold when sliding. There are rear transmission rods 64 between the left frame body 13 and the right frame body 25 and the corresponding rear sliding members 63 that can drive the rear sliding members 63 to slide when the two rotate.

[0009] The front frame 3 includes a first front support rod 31, a second front support rod 32, a third front support rod 33, and a fourth front support rod 34. The upper ends of the first front support rod 31 and the second front support rod 32 are hinged to each other. The lower end of the first front support rod 31 is hinged to the front sliding member 61 on the first vertical rod 11. The lower end of the second front support rod 32 is hinged to the front sliding member 61 on the third vertical rod 23. The lower ends of the third front support rod 33 and the fourth front support rod 34 are hinged to each other. The upper end of the third front support rod 33 is hinged to the upper end of the first vertical rod 11. The upper end of the fourth front support rod 34 is hinged to the upper end of the third vertical rod 23. And the first front support rod 31 and the third front support rod 33 are hinged in the middle of the two. The second front support rod 32 and the fourth front support rod 34 are hinged in the middle of the two.

[0010] The rear frame 4 described above includes a first rear strut 41, a second rear strut 42, a third rear strut 43, and a fourth rear strut 44. The upper ends of the first rear strut 41 and the second rear strut 42 are hinged to each other. The lower end of the first rear strut 41 is hinged to a rear slider 63 on the second vertical rod 12. The lower end of the second rear strut 42 is hinged to a rear slider 63 on the fourth vertical rod 24. The lower ends of the third rear strut 43 and the fourth rear strut 44 are hinged to each other. The upper end of the third rear strut 43 is hinged to the upper end of the second vertical rod 12. The upper end of the fourth rear strut 44 is hinged to the upper end of the fourth vertical rod 24. Moreover, the first rear strut 41 and the third rear strut 43 are hinged to each other in the middle of the two. The second rear strut 42 and the fourth rear strut 44 are hinged to each other in the middle of the two.

[0011] The left frame body 13 described above includes a first left strut 131 and a second left strut 132 that can rotate relative to the first left strut 131. The first left strut 131 is hinged to the upper end of the first vertical rod 11. The second left strut 132 is hinged to the upper end of the second vertical rod 12. A front transmission rod 62 is provided between the front slider 61 and the first left strut 131. A rear transmission rod 64 is provided between the rear slider 63 and the second left strut 132. The left frame body 13 further includes a third left strut 133 and a fourth left strut 134 that can rotate relative to the third left strut 133. The third left strut 133 is hinged to the lower end of the first vertical rod 11. The fourth left strut 134 is hinged to the lower end of the second vertical rod 12.

[0012] The right frame body 25 described above includes a first right strut 251 and a second right strut 252 that can rotate relative to the first right strut 251. The first right strut 251 is hinged to the upper end of the third vertical rod 23. The second right strut 252 is hinged to the upper end of the fourth vertical rod 24. A front transmission rod 62 is provided between the front slider 61 and the first right strut 251. A rear transmission rod 64 is provided between the rear slider 63 and the second right strut 252. The right frame body 25 further includes a third right strut 253 and a fourth right strut 254 that can rotate relative to the third right strut 253. The third right strut 253 is hinged to the lower end of the third vertical rod 23. The fourth right strut 254 is hinged to the lower end of the fourth vertical rod 24.

[0013] The left frame body 13 further includes a left connecting seat 135. The end of the first left strut 131 far from the first vertical rod 11 is hinged to the left connecting seat 135. The end of the second left strut 132 far from the second vertical rod 12 is hinged to the left connecting seat 135. The right frame body 25 further includes a right connecting seat 255. The end of the first right strut 251 far from the third vertical rod 23 is hinged to the right connecting seat 255. The end of the second right strut 252 far from the fourth vertical rod 24 is hinged to the right connecting seat 255.

[0014] The bottom frame 5 described above includes a bottom connecting seat 55. A first bottom rod 51 that is hinged to both the bottom connecting seat 55 and the lower end of the first vertical rod 11 is provided between the bottom connecting seat 55 and the lower end of the first vertical rod 11. A second bottom rod 52 that is hinged to both the bottom connecting seat 55 and the lower end of the second vertical rod 12 is provided between the bottom connecting seat 55 and the lower end of the second vertical rod 12. A third bottom rod 53 that is hinged to both the bottom connecting seat 55 and the lower end of the third vertical rod 23 is provided between the bottom connecting seat 55 and the lower end of the third vertical rod 23. A fourth bottom rod 54 that is hinged to both the bottom connecting seat 55 and the lower end of the fourth vertical rod 24 is provided between the bottom connecting seat 55 and the lower end of the fourth vertical rod 24.

[0015] A left connecting belt 56 that can drive the third left support rod 133 and the fourth left support rod 134 to rotate relative to each other when the bottom connecting seat 55 is lifted is provided between the connection position of the third left support rod 133 and the fourth left support rod 134 and the bottom connecting seat 55; a right connecting belt 57 that can drive the third right support rod 253 and the fourth right support rod 254 to rotate relative to each other when the bottom connecting seat 55 is lifted is provided between the connection position of the third right support rod 253 and the fourth right support rod 254 and the bottom connecting seat 55.

[0016] Wheels 7 are detachably connected to the lower ends of the left frame 1 and the right frame 2 described above. A pull rod assembly that can be unfolded or folded and is used for pulling is provided between the first vertical rod 11 and the third vertical rod 23. The pull rod assembly includes a first hinge seat 81 and a second hinge seat 82 that are respectively rotatably connected to the lower ends of the first vertical rod 11 and the third vertical rod 23. A first hinge rod 83 that is hinged to the first hinge seat 81 and a second hinge rod 84 that is hinged to the second hinge seat 82 are provided between the first hinge seat 81 and the second hinge seat 82. The upper ends of the first hinge rod 83 and the second hinge rod 84 are both hinged to a third hinge seat 85. A pull rod 86 is provided on the third hinge seat 85. A handle 87 is provided at the upper end of the pull rod 86.

[0017] Compared with the prior art, the present utility model has the following advantages:

[0018] 1. When the left frame body rotates relative to the first vertical rod and the second vertical rod and the right frame body rotates relative to the third vertical rod and the fourth vertical rod in the present utility model, it can drive the first vertical rod and the second vertical rod to approach each other and the third vertical rod and the fourth vertical rod to approach each other, and the vehicle frame is folded in its front-rear direction. At the same time, when the left frame body and the right frame body rotate, the front transmission rod pushes the front sliding member to slide, and the rear transmission rod pushes the rear sliding member to slide, thereby driving the front side frame and the rear side frame to fold in the left-right direction of the vehicle frame. Therefore, the vehicle frame can be folded in two directions, namely the front-rear direction and the left-right direction. After folding, the volume is small, which is convenient for carrying and storing. Moreover, when the left frame body and the right frame body rotate to drive the left frame and the right frame to fold, it also drives the front side frame and the rear side frame to fold at the same time, and the whole folding operation is very convenient and fast.

[0019] 2. When the present utility model is folded, first apply a downward thrust to the connection positions of the first left support rod and the second left support rod, and the connection positions of the first right support rod and the second right support rod, so that the front sliding member and the rear sliding member slide a certain distance. Then lift the bottom connecting seat upward. The bottom connecting seat drives the first bottom rod, the second bottom rod, the third bottom rod, and the fourth bottom rod to rotate and move upward. At the same time, the bottom connecting seat pulls the connection positions of the third left support rod and the fourth left support rod, and the connection positions of the third right support rod and the fourth right support rod upward through the left connecting belt and the right connecting belt, so that the left frame body and the right frame body can rotate relative to each other, so that the first vertical rod, the second vertical rod, the third vertical rod, and the fourth vertical rod approach each other, and further enable the vehicle frame to be folded in the front-rear direction and the left-right direction. The entire folding operation is very simple and fast.

[0020] 3. The present utility model has a simple structure, convenient folding operation, and small occupied space after being folded, and is suitable for popularization and application.

Description of the Drawings

[0021] Figure 1 is one of the perspective views of the present utility model;

[0022] Figure 2 is the side view of the present utility model;

[0023] Figure 3 is the second perspective view of the present utility model;

[0024] Figure 4 is the first side view during the folding process of the present utility model;

[0025] Figure 5 is the second side view during the folding process of the present utility model.

Detailed Embodiment

[0026] The present utility model will be further described below with reference to the drawings:

[0027] As Figures 1 to 5As shown in the figure, a vehicle skeleton includes a left frame 1 and a right frame 2 that are spaced apart from each other and can be unfolded or folded. A front frame 3 and a rear frame 4 that can be unfolded or folded are provided between the left frame 1 and the right frame 2. A bottom frame 5 that can be unfolded or folded is further provided at the lower ends of the left frame 1 and the right frame 2. The left frame 1, the right frame 2, the front frame 3, the rear frame 4, and the bottom frame 5 enclose a loading space 100 for carrying children or items. The left frame 1 includes a first vertical rod 11 and a second vertical rod 12. A left frame body 13 that can rotate relative to the two and can drive them to move away from or close to each other when rotating is provided between the first vertical rod 11 and the second vertical rod 12. The right frame 2 includes a third vertical rod 23 and a fourth vertical rod 24. A right frame body 25 that can rotate relative to the two and can drive them to move away from or close to each other when rotating is provided between the third vertical rod 23 and the fourth vertical rod 24. A front sliding member 61 that can slide relative to them and can drive the front frame 3 to unfold or fold when sliding is provided on the first vertical rod 11 and the third vertical rod 23. A front transmission rod 62 that can drive the front sliding member 61 to slide when the left frame body 13 and the right frame body 25 rotate is provided between the left frame body 13 and the right frame body 25 and the corresponding front sliding member 61. A rear sliding member 63 that can slide relative to them and can drive the rear frame 4 to unfold or fold when sliding is provided on the second vertical rod 12 and the fourth vertical rod 24. A rear transmission rod 64 that can drive the rear sliding member 63 to slide when the left frame body 13 and the right frame body 25 rotate is provided between the left frame body 13 and the right frame body 25 and the corresponding rear sliding member 63. When the left frame body 13 rotates relative to the first vertical rod 11 and the second vertical rod 12 and the right frame body 25 rotates relative to the third vertical rod 23 and the fourth vertical rod 24, the first vertical rod 11 and the second vertical rod 12 can be driven to close together, and the third vertical rod 23 and the fourth vertical rod 24 can be driven to close together. The vehicle skeleton folds in its front-rear direction. At the same time, when the left frame body 13 and the right frame body 25 rotate, the front transmission rod 62 pushes the front sliding member 61 to slide, and the rear transmission rod 64 pushes the rear sliding member 63 to slide, thereby driving the front frame 3 and the rear frame 4 to fold in the left-right direction of the vehicle skeleton. Therefore, the vehicle skeleton can be folded in two directions, namely the front-rear direction and the left-right direction. After folding, the volume is small, which is convenient for carrying and storing. Moreover, when the left frame body 13 and the right frame body 25 rotate to drive the left frame 1 and the right frame 2 to fold, the front frame 3 and the rear frame 4 are also driven to fold at the same time, and the entire folding operation is very convenient and fast. The entire vehicle skeleton structure is simple and compact. After putting on a cloth cover, it can be used as a baby crib and a playpen. In this embodiment, wheels 7 are detachably connected to the lower ends of the left frame 1 and the right frame 2, so that the vehicle skeleton can also be used as a camping cart, with diverse functions.

[0028] As Figure 1 and Figure 2As shown, a drawbar assembly that can be deployed or folded and is used for towing is provided between the first vertical rod 11 and the third vertical rod 23. The drawbar assembly includes a first hinge seat 81 and a second hinge seat 82 that are respectively rotatably connected to the lower ends of the first vertical rod 11 and the third vertical rod 23. A first hinge rod 83 hinged to the first hinge seat 81 and a second hinge rod 84 hinged to the second hinge seat 82 are provided between the first hinge seat 81 and the second hinge seat 82. The upper ends of the first hinge rod 83 and the second hinge rod 84 are both hinged to a third hinge seat 85. A drawbar 86 is provided on the third hinge seat 85, and a handle 87 is provided at the upper end of the drawbar 86. When the vehicle skeleton is used as a camping trailer, by pulling the handle 87 forward, the first hinge seat 81 can rotate relative to the first vertical rod 11 and the second hinge seat 82 can rotate relative to the third vertical rod 23, so that the drawbar assembly is in an inclined state, facilitating the user to tow the vehicle. When the vehicle needs to be folded, the first hinge seat 81 and the second hinge seat 82 are reset to the initial position, the first hinge rod 83 rotates relative to the first hinge seat 81 and the third hinge seat 85, and the second hinge rod 84 rotates relative to the second hinge seat 82 and the third hinge seat 85, enabling the first hinge rod 83 and the second hinge rod 84 to approach each other in the left-right direction of the vehicle skeleton, and further enabling the entire vehicle skeleton to be folded in the left-right direction.

[0029] As Figures 1 to 5As shown, the front frame 3 includes a first front strut 31, a second front strut 32, a third front strut 33, and a fourth front strut 34. The upper ends of the first front strut 31 and the second front strut 32 are hinged to each other. The lower end of the first front strut 31 is hinged to a front slider 61 on the first vertical rod 11. The lower end of the second front strut 32 is hinged to a front slider 61 on the third vertical rod 23. The lower ends of the third front strut 33 and the fourth front strut 34 are hinged to each other. The upper end of the third front strut 33 is hinged to the upper end of the first vertical rod 11. The upper end of the fourth front strut 34 is hinged to the upper end of the third vertical rod 23. Moreover, the first front strut 31 and the third front strut 33 are hinged to each other in the middle of the two. The second front strut 32 and the fourth front strut 34 are hinged to each other in the middle of the two. The rear frame 4 includes a first rear strut 41, a second rear strut 42, a third rear strut 43, and a fourth rear strut 44. The upper ends of the first rear strut 41 and the second rear strut 42 are hinged to each other. The lower end of the first rear strut 41 is hinged to a rear slider 63 on the second vertical rod 12. The lower end of the second rear strut 42 is hinged to a rear slider 63 on the fourth vertical rod 24. The lower ends of the third rear strut 43 and the fourth rear strut 44 are hinged to each other. The upper end of the third rear strut 43 is hinged to the upper end of the second vertical rod 12. The upper end of the fourth rear strut 44 is hinged to the upper end of the fourth vertical rod 24. Moreover, the first rear strut 41 and the third rear strut 43 are hinged to each other in the middle of the two. The second rear strut 42 and the fourth rear strut 44 are hinged to each other in the middle of the two. When the front slider 61 slides downward along the first vertical rod 11 and the third vertical rod 23, the front slider 61 pulls the first front strut 31 and the second front strut 32 downward. Since the first front strut 31 and the second front strut 32 are hinged, and the first front strut 31 is hinged to the third front strut 33, and the second front strut 32 is hinged to the fourth front strut 34, when the lower ends of the first front strut 31 and the second front strut 32 move downward following the front slider 61, the first front strut 31, the second front strut 32, the third front strut 33, and the fourth front strut 34 rotate relative to each other and move closer together, thereby realizing the folding of the front frame 3 in the left-right direction of the vehicle frame. By the same token, while the front frame 3 is folding, the rear frame 4 is also folded under the drive of the rear slider 63.

[0030] As Figures 1 to 5As shown, the left frame body 13 includes a first left support rod 131 and a second left support rod 132 that can rotate relative to the first left support rod 131. The first left support rod 131 is hinged to the upper end of the first vertical rod 11, and the second left support rod 132 is hinged to the upper end of the second vertical rod 12. A front transmission rod 62 is provided between the front slider 61 and the first left support rod 131, and a rear transmission rod 64 is provided between the rear slider 63 and the second left support rod 132. The left frame body 13 further includes a third left support rod 133 and a fourth left support rod 134 that can rotate relative to the third left support rod 133. The third left support rod 133 is hinged to the lower end of the first vertical rod 11, and the fourth left support rod 134 is hinged to the lower end of the second vertical rod 12. The right frame body 25 includes a first right support rod 251 and a second right support rod 252 that can rotate relative to the first right support rod 251. The first right support rod 251 is hinged to the upper end of the third vertical rod 23, and the second right support rod 252 is hinged to the upper end of the fourth vertical rod 24. A front transmission rod 62 is provided between the front slider 61 and the first right support rod 251, and a rear transmission rod 64 is provided between the rear slider 63 and the second right support rod 252. The right frame body 25 further includes a third right support rod 253 and a fourth right support rod 254 that can rotate relative to the third right support rod 253. The third right support rod 253 is hinged to the lower end of the third vertical rod 23, and the fourth right support rod 254 is hinged to the lower end of the fourth vertical rod 24. When the vehicle frame is folded, the connection positions of the first left support rod 131 and the second left support rod 132 and the connection positions of the first right support rod 251 and the second right support rod 252 move downward, and the connection positions of the third left support rod 133 and the fourth left support rod 134 and the connection positions of the third right support rod 253 and the fourth right support rod 254 move upward. Therefore, the first left support rod 131 and the second left support rod 132 pull the upper ends of the first vertical rod 11 and the second vertical rod 12 closer, and the third left support rod 133 and the fourth left support rod 134 pull the lower ends of the first vertical rod 11 and the second vertical rod 12 closer. At the same time, the first right support rod 251 and the second right support rod 252 pull the upper ends of the third vertical rod 23 and the fourth vertical rod 24 closer, and the third right support rod 253 and the fourth right support rod 254 pull the lower ends of the third vertical rod 23 and the fourth vertical rod 24 closer, thereby realizing the folding of the left frame 1 and the right frame 2.

[0031] As shown in the figure to Figure 4As shown, the left frame 13 further includes a left connecting seat 135. One end of the first left strut 131, which is away from the first vertical rod 11, is hinged to the left connecting seat 135. One end of the second left strut 132, which is away from the second vertical rod 12, is hinged to the left connecting seat 135. The right frame 25 further includes a right connecting seat 255. One end of the first right strut 251, which is away from the third vertical rod 23, is hinged to the right connecting seat 255. One end of the second right strut 252, which is away from the fourth vertical rod 24, is hinged to the right connecting seat 255. Therefore, the locking mechanism of the vehicle frame can be arranged on the left connecting seat 135 and the right connecting seat 255. For example, a locking structure of an elastic pin and a pin hole is arranged between the first left strut 131 and the second left strut 132 and the left connecting seat 135, and a locking structure of an elastic pin and a pin hole is arranged between the first right strut 251 and the second right strut 252 and the right connecting seat 255. When unlocking is required, the elastic pin is pressed to unlock the first left strut 131 and the second left strut 132 from the left connecting seat 135 and unlock the first right strut 251 and the second right strut 252 from the right connecting seat 255. After unlocking, the left frame 13 and the right frame 25 can rotate to drive the vehicle frame to fold. Of course, other locking structures such as hooks and pins in the prior art can also be used, which will not be elaborated here.

[0032] The bottom frame 5 described above includes a bottom connecting seat 55. A first bottom rod 51 hinged to both the bottom connecting seat 55 and the lower end of the first vertical rod 11 is provided between the bottom connecting seat 55 and the lower end of the first vertical rod 11. A second bottom rod 52 hinged to both the bottom connecting seat 55 and the lower end of the second vertical rod 12 is provided between the bottom connecting seat 55 and the lower end of the second vertical rod 12. A third bottom rod 53 hinged to both the bottom connecting seat 55 and the lower end of the third vertical rod 23 is provided between the bottom connecting seat 55 and the lower end of the third vertical rod 23. A fourth bottom rod 54 hinged to both the bottom connecting seat 55 and the lower end of the fourth vertical rod 24 is provided between the bottom connecting seat 55 and the lower end of the fourth vertical rod 24. A left connecting belt 56 that can drive the connecting position of the third left support rod 133 and the fourth left support rod 134 to rotate relative to each other when the bottom connecting seat 55 is lifted is provided between the connecting position of the third left support rod 133 and the fourth left support rod 134 and the bottom connecting seat 55. A right connecting belt 57 that can drive the connecting position of the third right support rod 253 and the fourth right support rod 254 to rotate relative to each other when the bottom connecting seat 55 is lifted is provided between the connecting position of the third right support rod 253 and the fourth right support rod 254 and the bottom connecting seat 55. When the vehicle frame is folded, first, a downward thrust is applied to the connecting position of the first left support rod 131 and the second left support rod 132 and the connecting position of the first right support rod 251 and the second right support rod 252, so that the front sliding member 61 and the rear sliding member 63 slide a certain distance. Then, the bottom connecting seat 55 is lifted upward. The bottom connecting seat 55 drives the first bottom rod 51, the second bottom rod 52, the third bottom rod 53, and the fourth bottom rod 54 to rotate and move upward. At the same time, the bottom connecting seat 55 pulls the connecting position of the third left support rod 133 and the fourth left support rod 134 and the connecting position of the third right support rod 253 and the fourth right support rod 254 to move upward through the left connecting belt 56 and the right connecting belt 57, so that the left frame 13 and the right frame 25 can rotate relative to each other, so that the first vertical rod 11, the second vertical rod 12, the third vertical rod 23, and the fourth vertical rod 24 approach each other, and further the vehicle frame can be folded in the front-back direction and the left-right direction. The entire folding operation is very simple and fast.

[0033] The above has described this embodiment in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiment. Within the knowledge scope of those of ordinary skill in the technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A carrier frame, characterized in that: The invention comprises a left side frame (1) and a right side frame (2) which are spaced apart from each other and can be unfolded or folded. A front side frame (3) and a rear side frame (4) which can be unfolded or folded are arranged between the left side frame (1) and the right side frame (2). A bottom frame (5) which can be unfolded or folded is also arranged at the lower ends of the left side frame (1) and the right side frame (2). The left side frame (1), the right side frame (2), the front side frame (3), the rear side frame (4) and the bottom frame (5) form a carrying space (100) for carrying children or articles. The left side frame (1) comprises a first vertical rod (11) and a second vertical rod (12). A left frame body (13) which can rotate relative to the first vertical rod (11) and the second vertical rod (12) and can drive the two to move away from or towards each other when rotating is arranged between the first vertical rod (11) and the second vertical rod (12). The right side frame (2) comprises a third vertical rod (23) and a fourth vertical rod (24). The third vertical rod (25) and the fourth vertical rod (26) are provided at the bottom ends of the left side frame (11). A right frame (25) is provided between the third vertical rod (23) and the fourth vertical rod (24) and can rotate relative to the two and drive the two to move away from or close to each other when rotating; a front sliding member (61) is provided on the first vertical rod (11) and the third vertical rod (23) and can slide relative to them and drive the front side frame (3) to unfold or fold when sliding; a front transmission rod (62) is provided between the left frame (13) and the right frame (25) and the corresponding front sliding member (61) and can drive the front sliding member (61) to slide when the two rotate; a rear sliding member (63) is provided on the second vertical rod (12) and the fourth vertical rod (24) and can slide relative to them and drive the rear side frame (4) to unfold or fold when sliding; a rear transmission rod (64) is provided between the left frame (13) and the right frame (25) and the corresponding rear sliding member (63) and can drive the rear sliding member (63) to slide when the two rotate.

2. The carrier frame according to claim 1, characterized in that: The front side frame (3) comprises a first front support rod (31), a second front support rod (32), a third front support rod (33) and a fourth front support rod (34); the upper ends of the first front support rod (31) and the second front support rod (32) are hinged to each other; the lower end of the first front support rod (31) is hinged to a front sliding member (61) on the first vertical rod (11); the lower end of the second front support rod (32) is hinged to a front sliding member (61) on the third vertical rod (23); The third front support rod (33) and the fourth front support rod (34) are hinged at their lower ends, the third front support rod (33) is hinged at its upper end to the first vertical rod (11), the fourth front support rod (34) is hinged at its upper end to the third vertical rod (23), and the first front support rod (31) and the third front support rod (33) are hinged at their middle parts, and the second front support rod (32) and the fourth front support rod (34) are hinged at their middle parts.

3. The carrier frame according to claim 2, characterized in that: The rear side frame (4) comprises a first rear support rod (41), a second rear support rod (42), a third rear support rod (43) and a fourth rear support rod (44); the upper ends of the first rear support rod (41) and the second rear support rod (42) are hinged to each other; the lower end of the first rear support rod (41) is hinged to a rear sliding member (63) on the second vertical rod (12); the lower end of the second rear support rod (42) is hinged to a rear sliding member (63) on the fourth vertical rod (24); The third rear support rod (43) and the fourth rear support rod (44) are hinged at their lower ends, the third rear support rod (43) is hinged at its upper end to the second vertical rod (12), the fourth rear support rod (44) is hinged at its upper end to the fourth vertical rod (24), and the first rear support rod (41) and the third rear support rod (43) are hinged at their middle parts, and the second rear support rod (42) and the fourth rear support rod (44) are hinged at their middle parts.

4. The carrier frame according to claim 3, characterized in that: The left frame (13) comprises a first left support rod (131) and a second left support rod (132) which can rotate relative to the first left support rod (131); the first left support rod (131) is hinged to the upper end of the first vertical rod (11); the second left support rod (132) is hinged to the upper end of the second vertical rod (12); the front transmission rod (62) is arranged between the front sliding member (61) and the first left support rod (131); the rear transmission rod (64) is arranged between the rear sliding member (63) and the second left support rod (132); the left frame (13) further comprises a third left support rod (133) and a fourth left support rod (134) which can rotate relative to the third left support rod (133); the third left support rod (133) is hinged to the lower end of the first vertical rod (11); the fourth left support rod (134) is hinged to the lower end of the second vertical rod (12).

5. The carrier frame according to claim 4, characterized in that: The right frame (25) comprises a first right support rod (251) and a second right support rod (252) which can rotate relative to the first right support rod (251); the first right support rod (251) is hinged to the upper end of the third vertical rod (23); the second right support rod (252) is hinged to the upper end of the fourth vertical rod (24); the front transmission rod (62) is arranged between the front sliding member (61) and the first right support rod (251); the rear transmission rod (64) is arranged between the rear sliding member (63) and the second right support rod (252); the right frame (25) further comprises a third right support rod (253) and a fourth right support rod (254) which can rotate relative to the third right support rod (253); the third right support rod (253) is hinged to the lower end of the third vertical rod (23); the fourth right support rod (254) is hinged to the lower end of the fourth vertical rod (24).

6. The carrier frame according to claim 5, characterized in that: The left frame (13) further comprises a left connecting seat (135), one end of the first left support rod (131) being on a side away from the first vertical rod (11) is hinged on the left connecting seat (135), and one end of the second left support rod (132) being on a side away from the second vertical rod (12) is hinged on the left connecting seat (135); the right frame (25) further comprises a right connecting seat (255), one end of the first right support rod (251) being on a side away from the third vertical rod (23) is hinged on the right connecting seat (255), and one end of the second right support rod (252) being on a side away from the fourth vertical rod (24) is hinged on the right connecting seat (255).

7. The carrier frame according to claim 6, characterized in that: The bottom frame (5) comprises a bottom connecting seat (55), a first bottom rod (51) is provided between the bottom connecting seat (55) and the lower end of the first vertical rod (11) and is hinged to the two, a second bottom rod (52) is provided between the bottom connecting seat (55) and the lower end of the second vertical rod (12) and is hinged to the two, a third bottom rod (53) is provided between the bottom connecting seat (55) and the lower end of the third vertical rod (23) and is hinged to the two, and a fourth bottom rod (54) is provided between the bottom connecting seat (55) and the lower end of the fourth vertical rod (24) and is hinged to the two.

8. The carrier frame according to claim 7, characterized in that: A left connecting belt (56) is provided between the connecting position of the third left support rod (133) and the fourth left support rod (134) and the bottom connecting seat (55), which can drive the third left support rod (133) and the fourth left support rod (134) to rotate relative to each other when the bottom connecting seat (55) is lifted; and a right connecting belt (57) is provided between the connecting position of the third right support rod (253) and the fourth right support rod (254) and the bottom connecting seat (55), which can drive the third right support rod (253) and the fourth right support rod (254) to rotate relative to each other when the bottom connecting seat (55) is lifted.

9. The carrier frame according to any one of claims 1 to 8, characterized in that: The lower ends of the left frame (1) and the right frame (2) are detachably connected to wheels (7), and a pull rod assembly that can be unfolded or folded and used for pulling is provided between the first vertical rod (11) and the third vertical rod (23). The pull rod assembly includes a first hinge seat (81) and a second hinge seat (82) that are rotatably connected to the lower ends of the first vertical rod (11) and the third vertical rod (23), respectively. A first hinge rod (83) hinged to the first hinge seat (81) and a second hinge rod (84) hinged to the second hinge seat (82) are provided between the first hinge seat (81) and the second hinge seat (82), and the upper ends of the first hinge rod (83) and the second hinge rod (84) are both hinged to the third hinge seat (85). A pull rod (86) is provided on the third hinge seat (85), and a handle (87) is provided at the upper end of the pull rod (86).

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