Folding cart structure

Abstract

The utility model relates to a folding cart structure. The folding cart structure comprises a folding handrail (1), a cart base (2) and a butt joint screw (5). The folding handrail (1) is connected with the cart base (2) through a butt joint screw (5); the cart base (2) comprises a handrail slot piece (2-3) and a slot reinforcing piece (2-4); the slot reinforcing piece (2-4) is connected with the handrail slot piece (2-3); the folding handrail (1) and the cart base (2) are connected through butt joint screws (5). A mounting hole (2-3-1) is formed in the handrail slot piece (2-3); and the butt joint screw (5) penetrates through the mounting hole (2-3-1). Compared with the prior art, the folding mechanism is improved, the position relation between the handrail and the base is ingeniously used, the foldable use scene is achieved, and on the premise that stability and durability are guaranteed, practicability and convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of folding carts, in particular to a folding cart structure. Background Art

[0002] A folding trolley is a portable transport tool that can be folded into a smaller size when not in use for easy carrying. Currently, folding trolleys on the market are mainly made of materials such as aluminum alloy and steel, and their structural designs are becoming increasingly sophisticated, but they still have some defects.

[0003] Folding tables and folding carts currently on the market have complex structures and require users to master certain operating techniques to fold and unfold them correctly. This can make them difficult or even dangerous to use for the elderly, children, those with limited physical strength, or those who have no experience with similar equipment. Furthermore, folding carts have a limited carrying capacity and can generally only carry items of a certain weight. Overloading the cart can not only damage it but also pose a safety hazard to the user. Overall, while folding carts are convenient to carry, their technical shortcomings still require further improvement. In addition to optimizing materials and structural design, it is also necessary to focus on user needs and safety issues to improve the overall performance and user experience of folding carts. Utility Model Content

[0004] The purpose of this utility model is to provide a foldable cart structure in order to overcome the defects of the above-mentioned prior art. This product realizes a foldable usage scenario through the simple combination of metal and metal, an improved folding mechanism, and clever use of the position relationship between the armrests and the base, thereby improving its practicality and convenience while ensuring stability and durability.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The purpose of the utility model is to provide a folding cart structure, which includes a folding armrest, a cart base, and docking screws; the folding armrest is connected to the cart base by docking screws; the cart base includes an armrest slot component and a slot reinforcement component; the slot reinforcement component is connected to the armrest slot component; the folding armrest and the cart base are connected by docking screws; the armrest slot component is provided with a mounting hole; the docking screw passes through the mounting hole.

[0007] Furthermore, the cart base also includes a base side beam and a base longitudinal and transverse beam; the base side beam is connected to the base longitudinal and transverse beam; and the armrest slot component is connected to the base side beam.

[0008] Furthermore, the folding cart structure also includes a cushion; the cushion is connected to the side beam of the base.

[0009] Furthermore, the soft pad is a PET soft pad.

[0010] Furthermore, the base side beams and the base longitudinal beams are connected to form a rectangular frame.

[0011] Furthermore, the mounting hole is a vertical strip hole, and the folded state or the opened state is achieved by folding the armrest and the docking screws to slide vertically relative to the mounting hole.

[0012] The folding armrest is provided with a connecting hole; the butt screw passes through the mounting hole of the folding armrest and the connecting hole of the cart base to connect the folding armrest and the cart base.

[0013] Furthermore, a folding limit groove is provided on the armrest slot component; the folding limit groove is used to limit the folding armrest when it is folded.

[0014] Furthermore, two folding armrests are provided; four armrest slot components are provided; and both ends of the folding armrest are respectively connected to an armrest slot component.

[0015] Furthermore, the folding limit slots provided on the armrest slot components connected to the same folding armrest have the same height; the folding limit slots provided on the armrest slot components connected to two folding armrests have different heights.

[0016] Furthermore, the folding cart structure also includes casters; the casters are connected to the cart base.

[0017] Furthermore, the slot reinforcement piece and the armrest slot piece are combined to form an armrest slot, specifically, the three side surfaces of the armrest slot piece and the slot reinforcement piece are combined to form four side surfaces of the armrest slot to limit the folding armrest inserted into the armrest slot.

[0018] Furthermore, the folding armrest, the cart base, and the docking screws are all metal parts, specifically steel (such as stainless steel) or aluminum alloy parts.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1) This technical solution provides a foldable cart structure that achieves a foldable usage scenario through the simple combination of metal and metal, an improved folding mechanism (slot reinforcement, armrest slot parts, docking screws, etc.), and clever use of the positional relationship between the armrest and the base. This improves its practicality and convenience while ensuring stability and durability.

[0021] 2) The folding cart structure provided by this technical solution has a stable structure, is easy to use, easy to install, and has a simple structure. The various components in the folding cart structure are mainly connected by screws or welding. The folding method is simple and redundant design is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a folding trolley base in an embodiment of the present invention.

[0023] Figure 2 Schematic diagram of the structure of the folding cart in the embodiment of the present invention (open state).

[0024] Figure 3 for Figure 2 A partial schematic diagram of .

[0025] Figure 4 This is a structural diagram of the folding cart structure in an embodiment of the present invention (intermediate process state).

[0026] Figure 5 for Figure 3 A partial schematic diagram of .

[0027] Figure 6 Schematic diagram of the structure of the folding cart in the embodiment of the present invention (folded state).

[0028] Figure 7 for Figure 1 A partial schematic diagram of .

[0029] in:

[0030] 1. Folding armrest, 2. Cart base, 3. Cushion, 4. Caster, 5. Docking screws, 2-1. Base side beam, 2-2. Base longitudinal and transverse beams, 2-3. Armrest slot parts, 2-3-1. Mounting hole, 2-3-2. Folding limit slot, 2-4. Slot reinforcement. DETAILED DESCRIPTION

[0031] The following is a detailed description of the present invention with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0032] In this utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements; "up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0033] It should be noted that, in the present invention, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0034] The present invention will be described in further detail below with reference to specific embodiments.

[0035] Example

[0036] like Figures 1 to 7 As shown, a folding cart structure in this embodiment includes a folding armrest 1, a cart base 2, a cushion 3, casters 4, and docking screws 5.

[0037] The folding armrest 1 is connected to the cart base 2 via docking screws 5; the cushion 3 is connected to the cart base 2; and the caster 4 is connected to the cart base 2.

[0038] The cart base 2 includes a base side crossbeam 2-1, a base longitudinal crossbeam 2-2, an armrest slot component 2-3, and a slot reinforcement component 2-4. The base side crossbeam 2-1 is connected to the base longitudinal crossbeam 2-2 by welding; the armrest slot component 2-3 is connected to the base side crossbeam 2-1, and the armrest slot component 2-3 is connected above the base side crossbeam 2-1; the ends of the slot reinforcement component 2-4 are connected to the armrest slot component 2-3. The cushion 3 is connected to the base side crossbeam 2-1 of the cart base 2; and the casters 4 are connected to the base side crossbeam 2-1 of the cart base 2.

[0039] The armrest slot member 2-3 is provided with a mounting hole 2-3-1, which is a vertical long hole. The folded state or the opened state is achieved by folding the armrest 1 and the docking screw 5 and sliding vertically relative to the mounting hole 2-3-1.

[0040] The folding armrest 1 is provided with a connecting hole; the docking screw 5 passes through the mounting hole 2-3-1 of the folding armrest 1 and the connecting hole of the cart base 2 to connect the folding armrest 1 and the cart base 2.

[0041] The cushion 3 is a PET cushion and is attached to the side crossbeam 2 - 1 of the trolley base 2 .

[0042] The two base side cross beams 2-1 and the two base longitudinal cross beams 2-2 are connected to form a rectangular frame. Specifically, the two base side cross beams 2-1 are arranged opposite to each other, and the two base longitudinal cross beams 2-2 are arranged opposite to each other. In this embodiment, the base side cross beams 2-1 are rectangular tubes, and the base longitudinal cross beams 2-2 are round tubes.

[0043] The armrest slot member 2-3 is provided with a folding limit slot 2-3-2; the folding limit slot 2-3-2 is used for limiting the position of the folding armrest 1 when it is folded.

[0044] In this embodiment, two opposing folding armrests 1 are provided; four armrest slot components 2-3 are provided, and the four armrest slot components 2-3 are respectively provided at the two ends of the two base side beams 2-1; the two ends of the folding armrest 1 are respectively connected to an armrest slot component 2-3, and the two armrest slot components 2-3 connected at the two ends of the same folding armrest 1 are respectively provided on the two base side beams 2-1.

[0045] The folding limit grooves 2-3-2 set on the armrest slot components 2-3 connected to the same folding armrest 1 have the same height; the folding limit grooves 2-3-2 set on the armrest slot components 2-3 connected to two folding armrests 1 have different heights, so that the maximum folding degrees of the two folding armrests 1 are different when folding, so as to avoid damage caused by collision between the two folding armrests 1 when folding.

[0046] The armrest slot member 2-3 includes three integrally formed side surfaces, two opposite side surfaces are provided with oppositely arranged mounting holes 2-3-1 for the butt screws 5 to pass through, and the other side surface is provided with a folding limit groove 2-3-2.

[0047] The slot reinforcement 2 - 4 includes a vertical surface and a bent surface integrally formed with the vertical surface.

[0048] The slot reinforcement 2-4 and the armrest slot member 2-3 are combined to form an armrest slot. Specifically, the three side surfaces of the armrest slot member 2-3 and the vertical surface of the slot reinforcement 2-4 are combined to form the four side surfaces of the armrest slot to limit the folding armrest 1 inserted into the armrest slot.

[0049] The folding cart structure further includes screws, such as screws for connecting the cart base 2 and the casters 4 .

[0050] The installation method of the folding cart structure comprises the following steps:

[0051] First, weld the cart base 2 into shape (as Figure 1 、 7The caster 4 is fixed to the bottom of the trolley base 2 to realize the trolley's mobility function; the cushion 3 is pasted on the base side beam 2-1 of the trolley base 2 to realize the trolley's scratch resistance and durability; the folding armrest 1 is inserted into the armrest slot of the trolley base 2, and the mounting hole 2-3-1 and the connecting hole are penetrated with the docking screw 5 to connect, and the trolley base 2 and the folding armrest 1 are connected, and the assembly is completed (such as Figure 2 、 3 ).

[0052] The method for using the folding cart structure comprises the following steps:

[0053] During use, the folding armrest 1 can be folded by simply pulling and folding it (such as Figure 3 、 Figure 4 、 Figure 5 ), and finally folded into a flat mode (such as Figure 6 During the pulling process, the folding armrest 1 moves upward relative to the mounting hole 2-3-1, disengaging from the limit of the armrest slot and being able to fold toward the folding limit slot 2-3-2. The ultimate folding degree is that the folding armrest 1 abuts against the folding limit slot 2-3-2.

[0054] And just need to fold down and press the folding armrest 1 to realize opening like Figure 2 After folding, the folding armrest 1 is pressed downward, and relative to the mounting hole 2-3-1, the folding armrest 1 moves downward. The folding armrest 1 is limited by the armrest slot and cannot be folded.

[0055] In addition, a cart plate can be installed on the cart base 2 to place items. The specific implementation of the cart plate can adopt existing technology. This application mainly provides a support structure for a folding cart.

[0056] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. A folding cart structure, characterized in that: The folding cart structure comprises a folding armrest (1), a cart base (2), and docking screws (5); The folding armrest (1) is connected to the cart base (2) via docking screws (5); The cart base (2) comprises an armrest slot member (2-3) and a slot reinforcement member (2-4); The slot reinforcement piece (2-4) is connected to the handrail slot piece (2-3); The folding armrest (1) and the trolley base (2) are connected via docking screws (5); The armrest slot member (2-3) is provided with a mounting hole (2-3-1); The docking screw (5) passes through the mounting hole (2-3-1).

2. A folding cart structure according to claim 1, characterized in that: The cart base (2) further comprises a base side beam (2-1) and a base longitudinal beam (2-2); The base side beams (2-1) are connected to the base longitudinal beams (2-2); The armrest slot member (2-3) is connected to the base side beam (2-1).

3. A folding cart structure according to claim 2, characterized in that: The folding cart structure further includes a soft cushion (3); The soft pad (3) is connected to the base side beam (2-1).

4. A folding cart structure according to claim 2, characterized in that: The base side beams (2-1) and the base longitudinal beams (2-2) are connected to form a rectangular frame.

5. A folding cart structure according to claim 1, characterized in that: The mounting hole (2-3-1) is a vertical long hole; The folding armrest (1) is provided with a connecting hole; The butt screw (5) passes through the mounting hole (2-3-1) of the folding armrest (1) and the connecting hole of the cart base (2) to connect the folding armrest (1) and the cart base (2).

6. A folding cart structure according to claim 1, characterized in that: The armrest slot member (2-3) is provided with a folding limit slot (2-3-2); The folding limiting groove (2-3-2) is used for limiting the position of the folding armrest (1) when it is folded.

7. A folding cart structure according to claim 6, characterized in that: Two folding armrests (1) are provided; Set up four armrest slot pieces (2-3); Both ends of the folding armrest (1) are respectively connected to an armrest slot member (2-3).

8. The folding cart structure according to claim 1, characterized in that: The folding limit slots (2-3-2) provided on the armrest slot components (2-3) connected to the same folding armrest (1) have the same height; The folding limit slots (2-3-2) provided on the armrest slot member (2-3) connecting the two folding armrests (1) have different heights.

9. The folding cart structure according to claim 1, characterized in that: The folding cart structure further includes casters (4); The casters (4) are connected to the cart base (2).

10. The folding cart structure according to claim 1, characterized in that: The slot reinforcement piece (2-4) and the handrail slot piece (2-3) are combined to form a handrail slot.

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