Trolley

Abstract

The trolley comprises a frame structure and an adaptive seat, the frame structure is provided with a containing space with the top open, the frame structure comprises a bottom supporting frame, two oppositely-arranged first side frames and two oppositely-arranged second side frames, and the first side frames and the second side frames are adjacent to each other and perpendicular to each other; the adaptive seat comprises a base part and a combination part capable of rotating relative to the base part, the base part is arranged on the first side frame and / or the second side frame, and the combination part has a combination state in which the combination part is unfolded to be detachably connected with the expansion equipment and a storage state in which the combination part is rotatably attached to the corresponding side frame. The combination part of the adapter seat is switched to the combination state to allow installation of the expansion equipment, and when a user does not need to install the expansion equipment, the combination part is rotated to the storage state, so that the sense of existence of the adapter seat is reduced, normal use of the trolley is not affected, and the adapter seat is not easy to lose.

Description

Technical Field

[0001] The present application relates to the technical field of carrying devices, and in particular to a trolley. Background Art

[0002] Some existing camping vehicles, such as the patent document with publication number CN113753118B, disclose a seat adapter and a seat adapter assembly, wherein the seat adapter is detachably mounted on a top frame. When the seat is not installed, the seat adapter needs to be removed, which makes the seat adapter easy to lose. Utility Model Content

[0003] The present application provides a trolley, which can be installed with expansion equipment and corresponding parts are not easy to be lost.

[0004] The present application provides a trolley, comprising:

[0005] A frame structure having a receiving space with an open top, the frame structure comprising a bottom support frame, two oppositely arranged first side frames, and two oppositely arranged second side frames, wherein the first side frames and the second side frames are adjacent to and perpendicular to each other;

[0006] The adapter seat includes a base and a coupling portion rotatable relative to the base, wherein the base is arranged on the first side frame and / or the second side frame, and the coupling portion has an unfolded coupling state for detachably connecting an expansion device, and a storage state for rotating and abutting against the corresponding side frame.

[0007] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0008] Optionally, the adapter seat includes a connecting portion, which is pivotally coupled to the combining portion and is detachably connected to the base.

[0009] Optionally, the connecting portion is plug-fitted to the base portion and a first locking mechanism is provided between the two to limit the separation of the two.

[0010] Optionally, the locking mechanism comprises:

[0011] A locking groove, disposed on the connecting portion;

[0012] A locking member, movably disposed on the base and cooperating with the locking groove;

[0013] The elastic member acts on the locking member to make it extend into the locking groove.

[0014] Optionally, a window is provided on the base, and the locking member has an operating portion exposed to the window, and the operating portion is used to drive the locking member to withdraw from the locking groove.

[0015] Optionally, the first side frame and / or the second side frame comprises at least one pair of scissor rods, each pair of scissor rods comprises a first rod member and a second rod member pivotally connected around a rotation axis, and the base is arranged on the second rod member.

[0016] Optionally, the combining portion and the first rod are staggered.

[0017] Optionally, the trolley includes a lining arranged in the accommodating space, and the adapter seat is located outside the lining.

[0018] Optionally, the expansion device has an adapter that cooperates with the combining part, a second locking mechanism that limits the separation of the two is arranged between the adapter and the combining part, and the combining part is movably provided with an unlocking member for unlocking the second locking mechanism, and when the combining part is in a combined state, the unlocking member is higher than the lining.

[0019] Optionally, the adapter seats are arranged in pairs.

[0020] In the trolley of the present application, the coupling portion of the adapter seat is switched to a coupled state to allow installation of an expansion device. When the user does not need to install the expansion device, the coupling portion is rotated to a storage state, thereby reducing the presence of the adapter seat, not affecting the normal use of the trolley, and preventing the adapter seat from being lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the frame structure of a trolley according to an embodiment of the present application;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of the framework structure in another perspective;

[0023] Figure 3 This is a schematic structural diagram of a trolley according to an embodiment of the present application;

[0024] Figure 4 for Figure 1 A schematic diagram of the structure of the adapter seat of the middle trolley in the storage state;

[0025] Figure 5 for Figure 1 Front view of the middle trolley;

[0026] Figure 6 for Figure 5 Cross-sectional view of the middle AA section;

[0027] Figure 7 for Figure 1 A schematic diagram of the structure of the adapter seat in the middle trolley in the combined state;

[0028] Figure 8 for Figure 7 A disassembled view between the connecting portion and the base of the middle adapter;

[0029] Fig. 9 for Figure 1 Schematic diagram of the structure of the trolley in the folded state.

[0030] The reference numerals in the figures are described as follows:

[0031] 1000, trolley;

[0032] 100, frame structure; 110, accommodating space; 120, bottom support frame; 121, front frame; 122, rear frame; 130, first side frame; 140, second side frame; 150, scissor rod; 151, first rod; 152, second rod; 153, transverse reinforcement rod; 155, bottom hinge point; 156, support rod; 160, vertical rod; 170, connecting rod;

[0033] 200, adapter seat; 210, base; 211, slot; 212, window; 220, joint; 230, connecting portion; 231, locking groove; 232, locking member; 233, elastic member; 234, operating portion;

[0034] 300. Lining. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0038] In this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] See also Figures 1 to 9 The present application provides a trolley 1000, comprising a frame structure 100 and an adapter seat 200, wherein the frame structure 100 has a top-open accommodating space 110, and comprises a bottom support frame 120, two oppositely arranged first side frames 130 and two oppositely arranged second side frames 140, and the frame structure 100 has Figure 1 In the length direction of L and the width direction of W, wheels are installed at the bottom of the frame structure 100. The first side frame 130 and the second side frame 140 are adjacent and perpendicular to each other, wherein the two first side frames 130 are arranged at intervals along the length direction or the width direction, and the bottom support frame 120 and all the side frames enclose a receiving space 110.

[0040] The adapter seat 200 includes a base 210 and a connecting portion 220 rotatable relative to the base 210. The adapter seat 200 is set on the side frame through the base 210. The frame structure 100 is provided with one or more adapter seats 200. For example, there is one adapter seat 200, and the base 210 is set on the first side frame 130 or the second side frame 140; there are multiple adapter seats 200, and the base 210 is set on the first side frame 130 and / or the second side frame 140. One or more adapter seats 200 can be installed on one side frame.

[0041] The joint portion 220 has Figure 1 The deployed (rotated away from the base 210) state shown is for a removably connected expansion device, and Figure 4 The storage state of the folded (rotated and close to the corresponding side frame) is shown. The expansion equipment is such as a seat, a parasol or a dining tray. The joint 220 is close to the corresponding side frame in the storage state, and "close" is understood as contacting or being adjacent to the corresponding side frame, or contacting or being adjacent to the plane where the side frame is located, and "adjacent" is understood as the distance between the two is 0 to 5 mm.

[0042] In the trolley of the present application, the coupling portion of the adapter seat is switched to a coupled state to allow installation of expansion equipment. When the user does not need to install the expansion equipment, the coupling portion is rotated to a storage state, thereby reducing the presence of the adapter seat, not affecting the normal use of the trolley, and preventing the adapter seat from being lost easily.

[0043] Among them Figure 3As shown, the trolley 1000 includes a lining 300 disposed in the accommodating space 110, and the adapter seat 200 is located outside the lining 300, so as to facilitate the assembly of the adapter seat 200 and the side frame. Preferably, when the adapter seat 200 is in the combined state, along the height direction, the base 210 is located below the lining 300, and the top of the coupling portion 220 at least partially exceeds the lining 300, so as to avoid interference with the lining during the assembly of the expansion device. When the coupling portion 220 is rotated and switched to the storage state, it faces inward or outward relative to the accommodating space 110. The figure shows that it faces inward relative to the accommodating space 110, and in the storage state, the adapter seat 200 is lower than the lining 300, and the appearance is simpler.

[0044] In one embodiment, the expansion device has an adapter that matches the coupling part 220, and a second locking mechanism is provided between the adapter and the coupling part 220 to limit the separation of the two. The coupling part 220 is movably provided with an unlocking member for unlocking the second locking mechanism. When the coupling part 220 is in the coupled state, at least the unlocking member is higher than the lining 300.

[0045] In a preferred embodiment, the adapter seat 200 includes a connecting portion 230, which is pivotally connected to the coupling portion 220 and detachably connected to the base 210, wherein the connecting portion 230 is plugged and matched with the base 210. In the figure, the connecting portion 230 is a sheet-like structure, and the base 210 has a slot 211 that matches the sheet-like structure. A first locking mechanism that limits the separation of the base 210 and the connecting portion 230 is provided between the base 210 and the connecting portion 230. The first locking mechanism includes a locking groove 231 provided on the connecting portion 230, a locking member 232 that is movably provided on the base 210 and matches the locking groove 231, and an elastic member 233 (such as a spring) provided in the base 210 and acts on the locking member 232 to make it extend into the locking groove 231. When the connecting portion 230 is inserted into the base 210 , it acts on the locking member 232 to make it move and compress the elastic member 233 . When the locking member 232 is aligned with the locking groove 231 , it is reset by the elastic member 233 and extends into the locking groove 231 .

[0046] The base 210 is provided with a window 212 , and the locking member 232 has an operating portion 234 exposed in the window 212 . The operating portion 234 is used to drive the locking member 232 to exit the locking groove 231 .

[0047] In one embodiment, the first side frame 130 and / or the second side frame 140 includes at least one pair of scissor rods 150, each pair of scissor rods includes a first rod 151 and a second rod 152 pivotally connected around a rotation axis, the base 210 is disposed on the first rod 151, the first rod 151 is adjacent to or away from the lining 300 relative to the second rod 152, and in the figure, the first rod 151 is adjacent to the lining 300 relative to the second rod 152. The base 210 and the second rod 152 are fixedly connected. Preferably, the joint 220 and the first rod 151 are staggered, that is, as shown in FIG. Figure 1As shown, the joint portion 220 and the first rod 151 are located on both sides of the second rod 152 along the rotation axis to avoid interference between the first rod 151 and the adapter seat 200 during folding.

[0048] In the figure, the bottom support frame 120 includes a front frame 121 and a rear frame 122 that can rotate relative to each other. In the unfolded state, the front frame 121 and the rear frame 122 are arranged in the same plane. The frame structure includes vertical poles 160 located at four corners. The same vertical pole 160 belongs to the adjacent first side frame 130 and the second side frame 140. The two first side frames 130 are arranged at intervals along the length direction, and the two second side frames 140 are arranged at intervals along the width direction. The second side frame 140 includes two pairs of hinged scissor rods 150. The tops of the first rods 151 of the two scissor rods and the adjacent vertical poles 160 are hinged with connecting rods 170. The tops of the first rods 151 of the same pair of scissor rods on both sides are connected with transverse reinforcing rods 153. The bottoms of the second rods 152 of the two pairs of scissor rods are hinged to the adjacent vertical rods 160, and the two pairs of scissor rods on the same side have bottom hinge points 155. The frame structure 100 includes a support rod 156 connected to the two bottom hinge points 155. In the unfolded state, the support rod 156 is supported by the bottom support frame 120 to keep it in the unfolded state. Among them, the first side frame 130 includes a crossbar arranged between the two vertical rods.

[0049] In one embodiment, a third locking mechanism is provided between the coupling portion 220 and the connecting portion 230 to keep the coupling portion 220 in a coupled state, or the adapter seats 200 are arranged in pairs, and the rotation of the coupling portion 220 is correspondingly restricted after the expansion device is installed. Of course, with the help of the lining 300, the coupling portion 220 is supported by the lining 300 and will not automatically flip to the storage state due to gravity, which facilitates the installation of the expansion device. If it needs to be flipped to the storage state, an external force needs to be applied to drive the lining 300 to deform. In the storage state, the coupling portion 220 is constrained by the lining 300 and will not shake.

[0050] The following is an explanation of the folding and unfolding operation of the stroller:

[0051] When folding, the joint part 220 is rotated to switch to the storage state, or the joint part 220 and the connecting part 230 are disassembled, and then the front frame 121 and the rear frame 122 are driven to flip upward (the lining 300 can be lifted), and the scissor rods of the second side frame 140 are folded, and the corresponding two first side frames are brought closer to each other.

[0052] When unfolding, an external force is applied to the bottom support frame 120, so that the front frame 121 and the rear frame 122 are flipped downward, and the two first side frames 130 are driven away from each other until the frame structure switches to the unfolded state. When it is necessary to install an expansion device, the coupling portion 220 is flipped to the combined state, or the coupling portion 220 and the connecting portion 230 are plugged into the base 210.

[0053] In the trolley of the present application, the coupling portion of the adapter seat is switched to a coupled state to allow installation of an expansion device. When the user does not need to install the expansion device, the coupling portion is rotated to a storage state, thereby reducing the presence of the adapter seat, not affecting the normal use of the trolley, and preventing the adapter seat from being lost.

[0054] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0055] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A trolley, characterized in that: include: A frame structure having a receiving space with an open top, the frame structure comprising a bottom support frame, two oppositely arranged first side frames, and two oppositely arranged second side frames, wherein the first side frames and the second side frames are adjacent to and perpendicular to each other; The adapter seat includes a base and a coupling portion rotatable relative to the base, wherein the base is arranged on the first side frame and / or the second side frame, and the coupling portion has an unfolded coupling state for detachably connecting an expansion device, and a storage state for rotating and abutting against the corresponding side frame.

2. The trolley according to claim 1, characterized in that: The adapter seat comprises a connecting portion, which is pivotally matched with the combining portion and is detachably connected to the base.

3. The trolley according to claim 2, characterized in that: The connecting portion is plug-fitted with the base portion and a first locking mechanism is provided between the two to limit the separation of the two.

4. The trolley according to claim 3, characterized in that: The locking mechanism comprises: A locking groove, disposed on the connecting portion; A locking member, movably disposed on the base and cooperating with the locking groove; The elastic member acts on the locking member to make it extend into the locking groove.

5. The trolley according to claim 4, characterized in that: The base is provided with a window, and the locking member has an operating portion exposed in the window, and the operating portion is used to drive the locking member to exit the locking groove.

6. The trolley according to claim 1, characterized in that: The first side frame and / or the second side frame comprises at least one pair of scissor rods, each pair of scissor rods comprises a first rod member and a second rod member pivotally connected around a rotation axis, and the base is arranged on the second rod member.

7. The trolley according to claim 6, characterized in that: The combining portion and the first rod are arranged in a staggered manner.

8. The trolley according to claim 1, characterized in that: It comprises a lining arranged in the accommodating space, and the adapting seat is located outside the lining.

9. The trolley according to claim 8, characterized in that: The expansion device has an adapter that matches the combining part, a second locking mechanism that limits the separation of the two is arranged between the adapter and the combining part, and the combining part is movably provided with an unlocking member for unlocking the second locking mechanism. When the combining part is in a combined state, the unlocking member is higher than the lining.

10. The trolley according to claim 1, characterized in that: The adapter seats are arranged in pairs.

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