Portable folding trolley

Abstract

The portable folding trolley is reasonable in structural design, thorough in folding and adjustable in trolley frame length and width and comprises a trolley frame, a folding handrail frame matched on the trolley frame and idler wheels arranged at the bottom of the trolley frame, handrail seats are symmetrically hinged to the trolley frame, a limiting rod is arranged between the handrail seats, and the limiting rod is connected with the trolley frame. The folding armrest frame is fixed on the armrest seat, the frame is provided with a mounting positioning groove for clamping and matching the folding armrest frame, the folding armrest frame is contracted and clamped and matched on the mounting positioning groove during folding, and at least two adjusting grooves for clamping and matching the limiting rods are formed in the position, corresponding to the lower portion of the folding armrest frame, of the frame. And the angle between the folding armrest frame and the frame is adjusted by clamping and matching the limiting rods with the different adjusting grooves.

Description

Technical Field

[0001] This utility model relates to the field of handcart technology, specifically a portable folding handcart. Background Technology

[0002] Handcarts are a common small transportation tool used by people in daily life. They can be used to move goods. With the development of society and economy and the improvement of people's living standards, more and more people like outdoor camping. Outdoor camping activities require preparing and carrying a lot of things. If the campsite is far from the parking location, it is not easy to move camping equipment. Therefore, people have high requirements for the portability and functionality of transportation tools when camping. Multifunctional transportation tools are often more popular.

[0003] Traditional foldable handcarts, such as the one described in patent number 202323666999.7, are convenient for outdoor use. However, such foldable handcarts still have many problems, specifically: First, the foldable handlebar frame is difficult to bend completely and place inside the frame, resulting in incomplete folding; Second, the length or width of the handcart frame is difficult to adjust or is inconvenient to adjust, resulting in poor applicability. Therefore, further optimization is urgently needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a portable folding trolley with a reasonable structural design, thorough folding, and adjustable frame length and width.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A portable folding trolley includes a frame, a folding armrest frame fitted onto the frame, and rollers located at the bottom of the frame. Armrest seats are symmetrically hinged to the frame, and a limit rod is provided between the armrest seats. The folding armrest frame is fixed to the armrest seats. The frame has mounting slots for engaging the folding armrest frame. When folded, the folding armrest frame retracts and engages with the mounting slots. Below the folding armrest frame, the frame has at least two adjustment slots for engaging with the limit rods. During adjustment, the angle between the folding armrest frame and the frame is adjusted by engaging the limit rods with the different adjustment slots.

[0007] Preferably, the frame includes a main frame and a sub-frame. The sub-frame is telescopically mounted on the main frame. A limiting protrusion is provided at the end of the main frame on the opposite side of the folding armrest. An elastic limiting element is provided on the limiting protrusion. The sub-frame is provided with a positioning protrusion that can abut against the limiting protrusion. A positioning connecting plate is fitted on the positioning protrusion. A plurality of positioning grooves are provided on the positioning connecting plate. One end of the positioning connecting plate passes through the limiting protrusion, so that the elastic limiting element engages with the positioning groove.

[0008] Preferably, the main frame is provided with symmetrical sliding grooves on both sides, and the secondary frame is provided with sliding rods on both sides that are adapted to the sliding grooves.

[0009] Preferably, the main frame is provided with symmetrical expansion slots on both sides, and expansion plates are hinged to the expansion slots. The expansion plates can be rotated 180 degrees and extend the width of both sides of the main frame.

[0010] Preferably, the bottom of the expansion slot is also provided with a snap-fit ​​slot, and the expansion plate can be flipped and snapped into the snap-fit ​​slot to extend the height of both sides of the main frame.

[0011] Preferably, the armrest seat is provided with a travel groove, and the frame is provided with a hinge shaft, which passes through the travel groove.

[0012] Preferably, the adjustment groove has two grooves, which are a vertical groove and an obtuse-angle groove, respectively.

[0013] Preferably, the frame is also provided with an oval hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The portable folding trolley of this utility model has the following features: when folded, the folding armrest retracts and is placed in the mounting and positioning groove of the frame, achieving complete bending of the armrest and placement inside the frame. The folding is quite thorough and occupies very little space. The angle between the folding armrest and the frame can be adjusted by the engagement between the limiting rod and different adjustment grooves, which can meet the operator's needs for different angles and has wide applicability.

[0016] 2. The portable folding trolley of this utility model can also extend the overall length of the frame through the design of the main and auxiliary frames, so as to realize the adjustment of the frame length. Furthermore, the hinged extension plate can be flipped 180 degrees and extend the width of the two sides of the main frame, so as to realize the adjustment of the frame width. The extension plate can be flipped and snapped into the snap-fit ​​groove to extend the height of the two sides of the main frame, so as to realize the adjustment of the height of the two sides of the frame. It can limit the movement of goods and has a wide range of applications. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the detachment of one side extension plate of a portable folding trolley according to the present invention;

[0018] Figure 2 This is an exploded schematic diagram of the main and auxiliary frames of a portable folding handcart according to the present invention;

[0019] Figure 3 This is a schematic diagram illustrating the usage of a portable folding handcart according to this utility model. Figure 1 ;

[0020] Figure 4 This is a schematic diagram illustrating the usage of a portable folding handcart according to this utility model. Figure 2 ;

[0021] Figure 5 This is a schematic diagram illustrating the usage of a portable folding handcart according to this utility model. Figure 3 ;

[0022] Figure 6 This is a schematic diagram illustrating the usage of a portable folding handcart according to this utility model. Figure 4 ;

[0023] Figure 7 This is a cross-sectional view of a portable folding handcart according to the present invention;

[0024] Figure 8 This is a schematic diagram of the folded state of a portable folding handcart according to the present invention;

[0025] Figure 9 This is a bottom view of a portable folding handcart according to the present invention. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-9A portable folding trolley includes a frame 1, a folding armrest frame 2 fitted onto the frame 1, and rollers 3 located at the bottom of the frame 1. Armrest seats 4 are symmetrically hinged to the frame 1, with limit rods 5 positioned between the armrest seats 4. The folding armrest frame 2 is fixed to the armrest seats 4. The frame 1 has mounting slots 6 for engaging the folding armrest frame 2. When folded, the folding armrest frame 2 retracts and engages with the mounting slots 6. Below the folding armrest frame 2, the frame 1 has at least two adjustment slots 7 for engaging with the limit rods 5. During adjustment, the folding armrest frame 2 adjusts its angle relative to the frame 1 by engaging with the limit rods 5 and different adjustment slots 7. This practical portable folding trolley allows the armrest frame 2 to be completely bent and placed inside the frame 1, resulting in a thorough folding and minimal space occupation. Operators can also use the limit rods 5 and different adjustment slots 7 to achieve different angles for the armrest frame 2, making it widely applicable.

[0028] The frame 1 includes a main frame 11 and a sub-frame 12. The sub-frame 12 is telescopically attached to the main frame 11. A limiting protrusion 13 is provided at the end of the main frame 11 on the opposite side of the folding armrest 2. An elastic limiting element 14 is provided on the limiting protrusion 13. The sub-frame 12 is provided with a positioning protrusion 15 that can abut against the limiting protrusion 13. A positioning connecting plate 16 is fitted on the positioning protrusion 15. A number of positioning grooves 17 are provided on the positioning connecting plate 16. One end of the positioning connecting plate 16 passes through the limiting protrusion 13 and makes the elastic limiting element 14 engage with the positioning groove 17. The limiting protrusion 13 and the positioning protrusion 15 can not only adjust the length of the frame 1 through the positioning connecting plate 16 and the elastic limiting element 14, but also play a locking and limiting role after the folding armrest 2 is folded and stored.

[0029] The main frame 11 has symmetrical sliding grooves 18 on both sides, and the sub-frame 12 has sliding rods 19 on both sides that are adapted to the sliding grooves 18. The cooperation between the sliding grooves 18 and the sliding rods 19 ensures the stability of the length adjustment of the frame 1.

[0030] The main frame 11 has symmetrical expansion slots 8 on both sides, and expansion plates 9 are hinged to the expansion slots 8. The expansion plates 9 can be rotated 180 degrees and extend the width of both sides of the main frame 11.

[0031] The bottom of the expansion slot 8 is also provided with a snap-fit ​​slot 10. The expansion plate 9 can be flipped and snapped into the snap-fit ​​slot 10 to extend the height of both sides of the main frame 11, which can limit the goods and facilitate the handling of the goods.

[0032] The armrest seat 4 is provided with a travel groove 41, and the frame 1 is provided with a hinge shaft 20. The hinge shaft 20 passes through the travel groove 41. The design of the travel groove 41 facilitates the adjustment of the folding armrest 2.

[0033] The adjusting groove 7 has two grooves, namely a vertical groove 71 and an obtuse-angled groove 72, as detailed in the reference. Figure 3When the limiting rod 5 is engaged with the vertical slot 71, the folding armrest frame 2 and the frame 1 are set at a 90-degree angle. See details... Figure 6 When the limiting rod 5 is engaged with the obtuse angle groove 72, the folding armrest frame 2 and the frame 1 are set at an obtuse angle.

[0034] The frame 1 is also provided with an oval hole 21, which makes it easy to move the trolley after it is completely folded.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable folding trolley, comprising a frame, a folding handlebar mounted on the frame, and wheels disposed at the bottom of the frame, characterized in that: The frame is symmetrically hinged with armrest seats, and limit rods are provided between the armrest seats. The folding armrest frame is fixed on the armrest seat. The frame is provided with mounting and positioning slots for the folding armrest frame to engage. When folded, the folding armrest frame retracts and engages with the mounting and positioning slots. The frame is provided with at least two adjustment slots below the folding armrest frame for the limit rods to engage. During adjustment, the folding armrest frame adjusts its angle with the frame by engaging the limit rods with the different adjustment slots.

2. A portable folding trolley according to claim 1, characterized in that: The frame includes a main frame and a sub-frame. The sub-frame is telescopically mounted on the main frame. A limiting protrusion is provided at the end of the main frame on the opposite side of the folding armrest. An elastic limiting element is provided on the limiting protrusion. The sub-frame is provided with a positioning protrusion that can abut against the limiting protrusion. A positioning connecting plate is fitted on the positioning protrusion. A plurality of positioning grooves are provided on the positioning connecting plate. One end of the positioning connecting plate passes through the limiting protrusion, so that the elastic limiting element engages with the positioning groove.

3. A portable folding trolley according to claim 2, characterized in that: The main frame is provided with symmetrical sliding grooves on both sides, and the secondary frame is provided with sliding rods on both sides that are adapted to the sliding grooves.

4. A portable folding trolley according to claim 2, characterized in that: The main frame has symmetrical expansion slots on both sides, and expansion plates are hinged to the expansion slots. The expansion plates can be rotated 180 degrees and extend the width of both sides of the main frame.

5. A portable folding trolley according to claim 4, characterized in that: The bottom of the expansion slot is also provided with a snap-fit ​​slot, and the expansion plate can be flipped and snapped into the snap-fit ​​slot to extend the height of both sides of the main frame.

6. A portable folding trolley according to any one of claims 1-5, characterized in that: The armrest seat is provided with a travel groove, and the frame is provided with a hinge shaft, which passes through the travel groove.

7. A portable folding trolley according to any one of claims 1-5, characterized in that: The adjustment groove has two grooves, a vertical groove and an obtuse-angled groove, respectively.

8. A portable folding trolley according to any one of claims 1-5, characterized in that: The frame is also provided with oval holes.

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