Height and length telescopic sitting type folding cart capable of being used as fishing chair, baby carriage and camping car

By designing components such as tiltable and resilient telescopic rods and omnidirectional brake wheels, the problems of large space occupation, labor-intensive operation, and inconvenient steering of traditional trolley pulling devices have been solved, achieving a multi-functional, labor-saving, and flexible use effect.

CN224117321UActive Publication Date: 2026-04-14刘杰
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional trolley systems have fixed frames and wheels, which limits the size of the goods that can be loaded, takes up a lot of space, is difficult to pull, inconvenient to steer, and has limited functionality.

Method used

The main frame is constructed using components such as tiltable and resilient telescopic rods, omnidirectional brake wheels, a flip-up seat frame, and adjustable support legs, enabling vertical loading, telescopic extension, and tilting of goods to adapt to different usage scenarios.

Benefits of technology

With its simple structure, ease of use, flexible steering, space-saving design, adaptability to various cargo sizes, high safety, and strong versatility, it is suitable for activities such as carrying, caring for infants and young children, fishing, and camping.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a height-length-telescopic sitting type folding cart capable of being used as a fishing chair, a baby carriage and a camping car. The buggy is composed of a main frame, a supporting frame device, a telescopic pull rod, a seat plate frame, a buggy fishing chair seat plate frame, a telescopic bearing frame, a camping car frame, height adjusting supporting legs, a plug pin device, universal brake wheels and fixed wheels. The main frame is telescopic and can be matched with the telescopic supporting legs to adjust the height of the baby carriage fishing chair seat plate frame, different sitting height requirements are met, the telescopic bearing frame installed at the bottom can be used for loading goods of different sizes, the telescopic pull rod can adapt to different heights, and labor can be saved when inclined pulling is carried out. The seat plate frame of the baby carriage fishing chair can be used for infant care, fishing and other activities, the seat plate frame can be used for sitting and resting, and the camping car frame can be used for camping, stall and other activities. The multi-purpose pen container is multifunctional, simple in structure, convenient to store and small in occupied space.
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Description

Technical Field

[0001] This utility model relates to a multi-purpose cart-pulling device, which is particularly suitable for various scenarios in people's daily lives where people or goods need to be transported. Background Technology

[0002] Currently, the trolleys used in daily life consist of wheels and a frame. People place goods on the frame and pull the frame to make the wheels under the frame roll, thus completing the transportation function. However, the traditional frame and wheels are fixed, the size of the load is limited by the size of the frame, it takes up a lot of space, is difficult to pull, inconvenient to turn, and has a single function, which can only achieve a single purpose. Summary of the Invention

[0003] To address the aforementioned shortcomings, this utility model provides a height- and length-adjustable, seat-and-fold trolley that can be used as a fishing chair, stroller, or camping vehicle.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: The main frame consists of an upper main frame and a lower main frame. The lower main frame has a tiltable and resilient telescopic rod, a telescopic load-bearing frame, and universal brake wheels installed at its lower part. An umbrella frame, etc., can be installed in the middle. The upper main frame has a detachable and foldable stroller / fishing chair seat frame and a stroller stop bar installed in its middle part, and a flip-up seat frame installed at its upper part. The upper main frame can be moved upwards to a certain height. Fixed wheels are installed on the telescopic load-bearing frame. The telescopic load-bearing frame and seat frame can be flipped to a position horizontal with the main frame, thus reducing space occupation. When loading goods, the main frame is lifted upwards, perpendicular to the telescopic load-bearing frame. The support plates of the two main frame support frames on it rotate 90 degrees to the upper part of the telescopic load-bearing frame. Goods are placed on the telescopic load-bearing frame, which can be extended to accommodate larger goods. The telescopic rod can be extended to a suitable length. When pulling goods, the telescopic rod forms an inclined angle with the main frame, reducing pulling force and saving effort. When not in use, the telescopic rod can spring back to a position parallel to the main frame via a torsion spring. The seat frame can be flipped to a position perpendicular to the main frame, allowing people to sit and rest. When the child car fishing chair seat frame is installed in the middle of the upper main frame, the telescopic support legs of the seat frame are secured to the bolts of the telescopic load-bearing frame. The seat frame flips to a horizontal position with the main frame, forming a backrest. When the upper main frame moves upward to a certain height, the telescopic support legs can extend to a certain length for support, ensuring that the child car fishing chair seat frame remains horizontal and bears weight. When used as a child car, a child car stop bar can be installed; when used as a fishing chair, the child car stop bar can be removed. The height-adjustable support legs of the fishing chair are installed on the telescopic load-bearing frame to adapt to different terrains, and fishing tackle accessories can be installed on the telescopic support legs. The telescopic load-bearing frame has three crossbeams, with two pin plates welded to the front and rear crossbeams respectively. The foldable campervan frame is integrated with the trolley by inserting the pins of the two campervan pin devices welded to the middle of its front into the holes of the two pin plates. The campervan frame has height-adjustable support legs installed on both sides of the front to adapt to different terrains.

[0005] The advantages of this invention are: simple structure, labor-saving operation, flexible steering, space-saving, adaptability to various cargo sizes, safe use, and multi-purpose functionality. It can be used not only for carrying and shopping but also for childcare, play, fishing, camping, and street vending. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0007] Figure 1 This is the overall structural diagram of this utility model.

[0008] Figure 2 This is a structural diagram of the first embodiment of a height-length telescopic folding trolley that can be used as a fishing chair, stroller, or campervan.

[0009] Figure 3 This is a structural diagram of a second embodiment of a height-length telescopic folding trolley that can be used as a fishing chair, stroller, or camping vehicle.

[0010] Figure 4 This is a structural diagram of a third embodiment of a height-length telescopic folding trolley that can be used as a fishing chair, stroller, or campervan.

[0011] Figure 5 This is a structural diagram of the fourth embodiment of a height-length telescopic folding trolley that can be used as a fishing chair, stroller, or camping vehicle.

[0012] Figure 6 This is a structural diagram of the fifth embodiment of a height-length telescopic folding trolley that can be used as a fishing chair, stroller, or camping vehicle.

[0013] Figure 7 This is a structural diagram of the sixth embodiment of a height-length telescopic folding trolley that can be used as a fishing chair, stroller, or camping vehicle.

[0014] Figure 8 This is a structural diagram of the seventh embodiment of a height-length telescopic folding trolley that can be used as a fishing chair, stroller, or camping vehicle.

[0015] Figure 9 This is a structural diagram of the eighth embodiment of a height-length telescopic folding trolley that can be used as a fishing chair, stroller, or campervan.

[0016] Figure 10 This is a structural diagram of the ninth embodiment of a height-length telescopic folding trolley that can be used as a fishing chair, stroller, or camping vehicle.

[0017] Figure 11 This is a structural diagram of the seat frame and telescopic support legs of a children's stroller fishing chair.

[0018] Figure 12 This is a structural diagram of a campervan frame.

[0019] Figure 13 This is a structural diagram of the main frame and the main frame support frame assembly.

[0020] Figure 14 This is a structural diagram of the seat frame.

[0021] Figure 15 This is a structural diagram of the telescopic load-bearing frame and the latch plate.

[0022] Figure 16 This is a construction diagram of a telescopic rod.

[0023] In the diagram: 1. Lower main frame, 2. Upper main frame, 3. Telescopic rod, 4. Seat frame, 5. Stroller stop bar, 6. Camper frame, 7. Fishing chair height-adjustable support leg, 8. Camper height-adjustable support leg, 9. Fixed wheel, 10. Camper pin device, 11. Telescopic support leg, 12. Telescopic load-bearing frame, 13. Main frame support frame device, 14. Universal brake wheel, 15. Pin plate, 16. Stroller fishing chair seat frame. Detailed Implementation

[0024] exist Figure 1 In the middle, the universal brake wheel (14) is bolted to the bottom mounting plate of the lower main frame (1); the telescopic load-bearing frame (12) is bolted to a pair of bolt holes at the bottom of the lower main frame (1); the telescopic tie rod (3) is bolted to the mounting bracket at the middle position of the bottom crossbeam of the lower main frame (1); the main frame support frame device (13) is welded to the mounting plate at the bottom of the two columns of the lower main frame (1); the child car fishing chair seat frame (16) is bolted to the mounting hole in the middle of the upper main frame (2), and the child car fishing chair seat frame (16) is bolted to the telescopic support leg (11), and the bottom clip of the telescopic support leg (11) is clipped to the telescopic load-bearing frame (12); On the bolts of 12), the stroller stop (5) is installed on the mounting hole in the middle of the upper main frame (2) by detachable bolts; the seat frame (4) is installed on the upper mounting plate of the upper main frame (2) by bolts; the fixed wheel (9) is installed on the telescopic load-bearing frame (12) by bolts; the fishing chair height adjustment support leg (7) is installed at the front of the telescopic load-bearing frame (12); the camper height adjustment support leg (8) is installed on the front frame of the camper frame (6); the pins of the two camper pin devices (10) welded to the middle position of the front of the camper frame (6) are inserted into the holes of the two pin pieces (15) welded to the middle position of the front crossbeam of the telescopic load-bearing frame (12).

[0025] exist Figure 2 In the embodiment shown, the telescopic load-bearing frame (12) is perpendicular to the lower main frame (1), the support plate of the main frame support device (13) is rotated 90 degrees to the telescopic load-bearing frame (12), and the seat plate frame (4) is horizontal to the upper main frame (2).

[0026] exist Figure 3 In the embodiment shown, the telescopic load-bearing frame (12) is perpendicular to the lower main frame (1), the support plate of the main frame support device (13) is rotated 90 degrees to the telescopic load-bearing frame (12), and the seat plate frame (4) is perpendicular to the upper main frame (2).

[0027] exist Figure 4 In the embodiment shown, the telescopic load-bearing frame (12) is horizontal with the lower main frame (1), and the seat plate frame (4) is horizontal with the upper main frame (2).

[0028] Figure 5 In the embodiment shown, the telescopic support frame (12) is perpendicular to the lower main frame (1), the support plate of the main frame support device (13) is rotated 90 degrees to the telescopic support frame (12), the child car fishing chair seat frame (16) is installed on the middle mounting hole of the upper main frame (2) by detachable bolts, the child car fishing chair seat frame (16) is installed with telescopic support legs (11) by bolts, the bottom clips of the telescopic support legs (11) are locked on the bolts of the telescopic support frame (12), the child car stop bar (5) is installed on the middle mounting hole of the upper main frame (2) by detachable bolts, and the seat frame (4) is horizontal to the upper main frame (2).

[0029] Figure 6 In the embodiment shown, the telescopic support frame (12) is perpendicular to the lower main frame (1), the support plate of the main frame support device (13) is rotated 90 degrees to the telescopic support frame (12), the child car fishing chair seat frame (16) is installed on the mounting hole in the middle of the upper main frame (2) by detachable bolts, the child car fishing chair seat frame (16) is installed with telescopic support legs (11) by bolts, the bottom clips of the telescopic support legs (11) are clipped on the bolts of the telescopic support frame (12), the fishing chair height adjustment support legs (7) are installed at the front of the telescopic support frame (12), and the seat frame (4) is horizontal to the upper main frame (2).

[0030] Figure 7 In the embodiment shown, the telescopic load-bearing frame (12) is perpendicular to the lower main frame (1), the support plate of the main frame support device (13) is rotated 90 degrees to the telescopic load-bearing frame (12), the seat frame (4) is horizontal to the upper main frame (2), the camper height adjustment support leg (8) is installed on the front frame of the camper frame (6), and the pins of the two camper pin devices (10) welded to the middle position of the front of the camper frame (6) are inserted into the holes of the two pin pieces (15) welded to the middle position of the rear crossbeam of the telescopic load-bearing frame (12).

[0031] Figure 8 In the embodiment shown, the telescopic load-bearing frame (12) is perpendicular to the lower main frame (1), the support plate of the main frame support device (13) is rotated 90 degrees to the telescopic load-bearing frame (12), the seat frame (4) is horizontal to the upper main frame (2), the camper height adjustment support leg (8) is installed on the front frame of the camper frame (6), and the pins of the two camper pin devices (10) welded to the middle position of the front of the camper frame (6) are inserted into the holes of the two pin pieces (15) welded to the middle position of the front crossbeam of the telescopic load-bearing frame (12).

[0032] Figure 9In the embodiment shown, the telescopic support frame (12) is perpendicular to the lower main frame (1), the support plate of the main frame support device (13) is rotated 90 degrees to the telescopic support frame (12), the seat frame (4) is horizontal to the upper main frame (2), the child car fishing chair seat frame (16) is installed on the mounting hole in the middle of the upper main frame (2) by detachable bolts, the child car fishing chair seat frame (16) is bolted to the telescopic support leg (11), and the bottom clip of the telescopic support leg (11) is locked in the telescopic support frame (12). On the bolts, the stroller stop (5) is installed on the mounting hole in the middle of the upper main frame (2) by a detachable bolt. The upper main frame (2) moves upward to a certain height, and the telescopic support leg (11) extends to a certain length for support. The camper height adjustment support leg (8) is installed on the front frame of the camper frame (6). The pins of the two camper pin devices (10) welded to the middle position of the front of the camper frame (6) are inserted into the holes of the two pin pieces (15) welded to the middle position of the front crossbeam of the telescopic load-bearing frame (12).

[0033] Figure 10 In the embodiment shown, the telescopic load-bearing frame (12) is perpendicular to the lower main frame (1), the support plate of the main frame support frame device (13) is rotated 90 degrees to the telescopic load-bearing frame (12), the seat frame (4) is horizontal to the upper main frame (2), the child car fishing chair seat frame (16) is installed on the middle mounting hole of the upper main frame (2) by detachable bolts, the child car fishing chair seat frame (16) is installed with telescopic support legs (11) by bolts, the bottom clip of the telescopic support legs (11) is clipped on the bolts of the telescopic load-bearing frame (12), the child car stop bar (5) is installed on the middle mounting hole of the upper main frame (2) by detachable bolts, the camper height adjustment support leg (8) is installed on the front frame of the camper frame (6), and the pins of the two camper pin devices (10) welded to the middle position of the front of the camper frame (6) are inserted into the holes of the two pin pieces (15) welded to the middle position of the front crossbeam of the telescopic load-bearing frame (12).

Claims

1. A height- and length-adjustable, foldable trolley that can be used as a fishing chair stroller / camper, comprising upper and lower main frames, a support frame device, a telescopic pull rod, a seat frame, a stroller / fishing chair seat frame, a stroller stop bar, a telescopic load-bearing frame, a camper frame, height-adjustable support legs, a pin device, and swivel brake wheels and fixed wheels, characterized in that: The lower main frame is fixedly installed with a tiltable and resilient telescopic rod, a telescopic load-bearing frame, and omnidirectional brake wheels. The upper main frame has a detachable and foldable child car fishing chair seat frame and a child car stop bar installed in the middle, and a flip-up seat frame fixedly installed on the upper part. Fixed wheels are fixedly installed on the telescopic load-bearing frame, and the height-adjustable support legs for the fishing chair are installed at the front. The foldable child car fishing chair seat frame is equipped with telescopic support legs. Two campervan pin devices are welded to the middle of the front of the foldable campervan frame, and campervan height-adjustable support legs are installed on both sides of the front.

2. The cart according to claim 1, characterized in that: The telescopic load-bearing frame and seat frame can be flipped to a position horizontal with the main frame, which can reduce space occupation; the cargo is placed on the telescopic load-bearing frame, which can be extended to facilitate the loading of larger cargo.

3. The cart according to claim 1, characterized in that: The telescopic rod can be extended to a suitable length; when pulling goods, the telescopic rod forms an inclined angle with the main frame, and when not in use, the telescopic rod can return to a position parallel to the main frame through a torsion spring.

4. The cart according to claim 1, characterized in that: The seat frame can be flipped to a position perpendicular to the main frame, allowing people to sit on it.

5. The cart according to claim 1, characterized in that: The child stroller fishing chair seat frame is installed in the middle of the upper main frame with detachable bolts. The clips at the bottom of the telescopic support legs are locked onto the bolts of the telescopic load-bearing frame. When the upper main frame moves upward to a certain height, the telescopic support legs can extend to a certain length to provide support, ensuring that the child stroller fishing chair seat frame remains horizontal and can bear the weight.

6. The cart according to claim 1, characterized in that: The telescopic support frame is equipped with height-adjustable support legs for the fishing chair. When used on different terrains, the level of the fishing chair can be adjusted by extending the support legs.

7. The cart according to claim 1, characterized in that: The telescopic load-bearing frame has three crossbeams, with two pin plates welded to each of the front and rear crossbeams. The foldable campervan frame is integrated with the trolley by inserting the pins of the two campervan pin devices welded to the middle of its front into the holes of the two pin plates.

8. The cart according to claim 1, characterized in that: The campervan frame is equipped with height-adjustable support legs at the front, which can be used on different terrains to adjust the campervan's level by extending the support legs.