A side opening folding stroller

Abstract

The utility model relates to the field of cart technology, and specifically is a side opening type folding cart, including folding cart main part, the folding cart main part includes main frame and sets up first folding support and second folding support in two pairs of sides of main frame, the main frame with first folding support and second folding support between form the storage cavity, the upper end of first folding support can be relative to the lower end to the direction of far from the storage cavity downwardly overturn to form the first side opening with the storage cavity communication in one side of main frame. When needing to place article or put in children, can after the upper end of first folding support relative to the lower end to the direction of far from the storage cavity downwardly overturn, put article or children from first side opening and put into the storage cavity of cart, and it is more laborsaving convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of trolley technology, specifically a side-opening folding trolley. Background Technology

[0002] Folding strollers are practical transportation tools. They can be unfolded when needed to carry items or children, making outdoor outings convenient, and folded up for easy storage when not in use. However, in existing folding strollers, each side is fixed and cannot be disassembled. When people need to place items or children in the stroller, they often have to lift the items or children up over the side of the stroller before they can be placed into the stroller through the top opening, which is very strenuous. Utility Model Content

[0003] The purpose of this invention is to provide a side-opening folding stroller, which solves the problem that it is very difficult to place items or put children in the existing folding strollers because each side is fixedly connected and cannot be disassembled.

[0004] To solve the above problems, the present invention provides the following technical solution:

[0005] A side-opening folding trolley includes a folding trolley body, the folding trolley body including a main frame and a first folding bracket and a second folding bracket disposed on two opposite sides of the main frame. A storage cavity is formed between the main frame, the first folding bracket and the second folding bracket. The upper end of the first folding bracket can be flipped downward relative to the lower end in a direction away from the storage cavity to form a first side opening communicating with the storage cavity on one side of the main frame.

[0006] As described above, in a side-opening folding trolley, the first folding bracket includes a first front bottom rod, a first rear bottom rod, a first front top rod, and a first rear top rod, wherein the first front bottom rod is pivotally connected to the first rear bottom rod, and the first front top rod is pivotally connected to the first rear top rod.

[0007] When the pivot axis of the first front bottom rod and the first rear bottom rod is parallel to the pivot axis of the first front top rod and the first rear top rod, the first front bottom rod can rotate relative to the first rear bottom rod, and the first front top rod can rotate relative to the first rear top rod, so that the first folding bracket can be folded or unfolded.

[0008] The first folding bracket further includes a first front flip rod, a first rear flip rod, and a first connecting assembly. The first front flip rod is parallel to and hinged to the first front bottom rod, and the first rear flip rod is parallel to and hinged to the first rear bottom rod. The first connecting assembly connects the first front top rod, the first rear top rod, the first front flip rod, and the first rear flip rod to form a first flipping body.

[0009] When the hinge axis of the first front flip rod and the first front bottom rod is coaxial with the hinge axis of the first rear flip rod and the first rear bottom rod, the first front flip rod can rotate relative to the first front bottom rod, and the first rear flip rod can rotate relative to the first rear bottom rod, so that the upper end of the first flip body can flip downward relative to the lower end in a direction away from the storage cavity.

[0010] As described above, in a side-opening folding trolley, the first connecting assembly includes a first front slant bar, a first rear slant bar, and a first pivoting mechanism. The front end of the first front slant bar is pivotally connected to the front end of the first front flip bar, and the rear end of the first rear slant bar is pivotally connected to the rear end of the first rear flip bar. The first pivoting mechanism is connected to the rear end of the first front push bar, the front end of the first rear push bar, the rear end of the first front slant bar, and the front end of the first rear slant bar, respectively, so that the four components are pivotally connected to each other.

[0011] As described above, in a side-opening folding trolley, the first connecting assembly further includes a first front top pivot seat disposed between the first pivoting mechanism and the first front top rod, and a first rear top pivot seat disposed between the first pivoting mechanism and the first rear top rod. The front end of the first front top pivot seat is pivotally connected to the rear end of the first front top rod, and the rear end of the first front top pivot seat is pivotally connected to the first pivoting mechanism; the rear end of the first rear top pivot seat is pivotally connected to the front end of the first rear top rod, and the front end of the first rear top pivot seat is pivotally connected to the first pivoting mechanism.

[0012] The first connecting assembly further includes a first front support rod and a first rear support rod. The upper end of the first front support rod is pivotally connected to the first front top pivot, the lower end of the first front support rod is pivotally connected to the rear end of the first front flip rod, the upper end of the first rear support rod is pivotally connected to the first rear top pivot, and the lower end of the first rear support rod is pivotally connected to the front end of the first rear flip rod.

[0013] As described above, in a side-opening folding trolley, the rear end of the first front bottom rod is provided with a first front bottom pivot tube, the front end of the first rear bottom rod is provided with a first rear bottom pivot seat, the first rear bottom pivot seat is pivotally connected to the middle of the first front bottom pivot tube, and when the first folding bracket is unfolded, the first front bottom pivot tube abuts against the upper side of the first rear bottom pivot seat.

[0014] As described above, in a side-opening folding trolley, the second folding bracket includes a second front bottom rod, a second rear bottom rod, a second front top rod, a second rear top rod, the second front bottom rod and the second rear bottom rod being pivotally connected, and the second front top rod and the second rear top rod being pivotally connected;

[0015] The pivot axis of the second front bottom rod and the second rear bottom rod is parallel to the pivot axis of the second front top rod and the second rear top rod. The second front bottom rod can rotate relative to the second rear bottom rod, and the second front top rod can rotate relative to the second rear top rod, so as to fold or unfold the second folding bracket.

[0016] As described above, in a side-opening folding trolley, the second folding bracket further includes a second connecting assembly. The second connecting assembly includes a second front slant bar, a second rear slant bar, and a second pivoting mechanism. The front end of the second front slant bar is pivotally connected to the front end of the second front bottom bar, and the rear end of the second rear slant bar is pivotally connected to the rear end of the second rear bottom bar. The second pivoting mechanism is connected to the rear end of the second front top bar, the front end of the second rear top bar, the rear end of the second front slant bar, and the front end of the second rear slant bar, respectively, so that the four components are pivotally connected to each other.

[0017] As described above, in a side-opening folding trolley, the second connecting assembly further includes a second front top pivot seat disposed between the second pivoting mechanism and the second front top rod, and a second rear top pivot seat disposed between the second pivoting mechanism and the second rear top rod. The front end of the second front top pivot seat is pivotally connected to the rear end of the second front top rod, and the rear end of the second front top pivot seat is pivotally connected to the second pivoting mechanism. The rear end of the second rear top pivot seat is pivotally connected to the front end of the second rear top rod, and the front end of the second rear top pivot seat is pivotally connected to the second pivoting mechanism.

[0018] The second connecting assembly further includes a second front support rod and a second rear support rod. The upper end of the second front support rod is pivotally connected to the second front top pivot, the lower end of the second front support rod is pivotally connected to the rear end of the second front bottom rod, the upper end of the second rear support rod is pivotally connected to the second rear top pivot, and the lower end of the second rear support rod is pivotally connected to the front end of the second rear bottom rod.

[0019] As described above, in a side-opening folding trolley, the upper end of the second folding bracket can be flipped downward relative to the lower end in a direction away from the storage cavity to form a second side opening communicating with the storage cavity on the other side of the main frame.

[0020] As described above, in a side-opening folding trolley, the second folding bracket includes a second front bottom rod, a second rear bottom rod, a second front top rod, a second rear top rod, the second front bottom rod and the second rear bottom rod being pivotally connected, and the second front top rod and the second rear top rod being pivotally connected;

[0021] When the pivot axis of the second front bottom rod and the second rear bottom rod is parallel to the pivot axis of the second front top rod and the second rear top rod, the second front bottom rod can rotate relative to the second rear bottom rod, and the second front top rod can rotate relative to the second rear top rod, so that the second folding bracket can be folded or unfolded.

[0022] The second folding bracket also includes a second front flip rod, a second rear flip rod, and a second connecting assembly. The second front flip rod is parallel to and hinged to the second front bottom rod, and the second rear flip rod is parallel to and hinged to the second rear bottom rod. The second connecting assembly connects the second front top rod, the second rear top rod, the second front flip rod, and the second rear flip rod to form a second flipping body.

[0023] When the hinge axis of the second front flip rod and the second front bottom rod is coaxial with the hinge axis of the second rear flip rod and the second rear bottom rod, the second front flip rod can rotate relative to the second front bottom rod, and the second rear flip rod can rotate relative to the second rear bottom rod, so that the upper end of the second flip body can flip downward relative to the lower end in a direction away from the storage cavity.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] This utility model provides a side-opening folding stroller. When it is necessary to place items or children in the stroller, the upper end of the first folding bracket can be flipped downward relative to the lower end in the direction away from the storage cavity, and the items or children can be placed into the storage cavity of the stroller through the first side opening, which is more labor-saving and convenient to use. Moreover, after the upper end of the first folding bracket is flipped downward relative to the lower end in the direction away from the storage cavity, the stroller can be transformed into an open seat that can be used for temporary sitting, which is beneficial to expanding the usage scenarios. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a side-opening folding trolley according to an embodiment of the present invention, in which the first side opening is in the open state.

[0028] Figure 2 This is a schematic diagram of the structure of a side-opening folding trolley according to an embodiment of the present invention, in which the first side opening is in a closed state in an embodiment where the first folding bracket can be flipped open.

[0029] Figure 3 This is a schematic diagram of the structure of a side-opening folding trolley in which the first folding bracket can be flipped open in an embodiment of the present invention, showing the folding trolley body in a folded state.

[0030] Figure 4This is an exploded view of the locking device in a side-opening folding trolley according to an embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the structure of the first locking seat in a side-opening folding trolley according to an embodiment of the present invention.

[0032] Figure 6 This is a schematic diagram of the structure of a side-opening folding trolley according to an embodiment of the present invention, in which both the first folding bracket and the second folding bracket can be flipped open, and the first side opening and the second side opening are in the open state.

[0033] Figure 7 This is a schematic diagram of a side-opening folding trolley according to an embodiment of the present invention, in which both the first and second folding brackets can be flipped open, and the first and second side openings are in a closed state.

[0034] The corresponding numbers for the attached figures are as follows:

[0035] 1. Main frame; 101. Storage cavity; 102. First side opening; 103. Second side opening; 2. First folding bracket; 21. First front bottom rod; 211. First front bottom pivot tube; 22. First rear bottom rod; 221. First rear bottom pivot seat; 23. First front top rod; 24. First rear top rod; 25. First front flip rod; 26. First rear flip rod; 271. First front inclined rod; 272. First rear inclined rod; 273. First pivot mechanism; 274. First front top pivot seat; 275. First rear top pivot seat; 276. First front support rod; 277. First rear support rod; 3. Second folding bracket; 31. Second front bottom rod; 311. Second front bottom pivot tube; 32. Second rear bottom rod; 321. Second rear bottom pivot seat; 33. Second front top rod; 34. Second rear top rod; 35. 36. Second front flip rod; 371. Second front diagonal rod; 372. Second rear diagonal rod; 373. Second pivot mechanism; 374. Second front top pivot seat; 375. Second rear top pivot seat; 376. Second front support rod; 377. Second rear support rod; 4. Locking device; 41. First locking seat; 411. First locking hole; 412. Mounting groove; 413. Limiting slide groove; 414. Through hole; 415. Positioning groove; 416. Positioning hole; 417. First insert plate; 418. First slot; 42. Second locking seat; 421. Second locking hole; 422. Second insert plate; 423. Second slot; 43. Locking component; 431. Locking part; 432. Sleeve part; 44. Self-locking spring; 45. Unlocking module; 451. Dragging part; 452. Connecting part. Detailed Implementation

[0036] 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 a part of the embodiments of the present utility model, and not all of them. 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.

[0037] Please see Figures 1 to 7 This embodiment provides a side-opening folding trolley, including a folding trolley body. The folding trolley body includes a main frame 1 and a first folding bracket 2 and a second folding bracket 3 disposed on two opposite sides of the main frame 1. A storage cavity 101 is formed between the main frame 1, the first folding bracket 2, and the second folding bracket 3. The upper end of the first folding bracket 2 can be flipped downward relative to the lower end in a direction away from the storage cavity 101 to form a first side opening 102 communicating with the storage cavity 101 on one side of the main frame 1.

[0038] In this embodiment, a side-opening folding stroller can be placed in a way that is more convenient and less strenuous when items or children need to be placed in it. The upper end of the first folding bracket 2 can be flipped downward relative to the lower end in a direction away from the storage cavity 101, and the items or children can be placed into the storage cavity 101 of the stroller through the first side opening 102. Moreover, after the upper end of the first folding bracket 2 is flipped downward relative to the lower end in a direction away from the storage cavity 101, the stroller can be transformed into an open seat that can be used for temporary seating, which helps to broaden the usage scenarios.

[0039] Furthermore, such as Figures 1 to 7As shown, in some embodiments, the first folding bracket 2 includes a first front bottom rod 21, a first rear bottom rod 22, a first front top rod 23, and a first rear top rod 24. The first front bottom rod 21 is pivotally connected to the first rear bottom rod 22, and the first front top rod 23 is pivotally connected to the first rear top rod 24. When the pivot axis of the first front bottom rod 21 and the first rear bottom rod 22 is parallel to the pivot axis of the first front top rod 23 and the first rear top rod 24, the first front bottom rod 21 can rotate relative to the first rear bottom rod 22, and the first front top rod 23 can rotate relative to the first rear top rod 24, so that the first folding bracket 2 can be folded or unfolded. The first folding bracket 2 also includes a first front flip rod 25, a first rear flip rod 26, and a first connecting assembly. The first front flip rod 25 is parallel to and hinged to the first front bottom rod 21, and the first rear flip rod 26 is parallel to and hinged to the first rear bottom rod 22. The first connecting assembly connects the first front top rod 23, the first rear top rod 24, the first front flip rod 25, and the first rear flip rod 26 to form a first flipping body. When the hinge axis of the first front flip rod 25 and the first front bottom rod 21 is coaxial with the hinge axis of the first rear flip rod 26 and the first rear bottom rod 22, the first front flip rod 25 can rotate relative to the first front bottom rod 21, and the first rear flip rod 26 can rotate relative to the first rear bottom rod 22, so that the upper end of the first flipping body can flip downward relative to the lower end in a direction away from the storage cavity 101. The first folding bracket 2 can realize both folding and unfolding functions and flipping and opening functions, making it more convenient to use.

[0040] Furthermore, in some embodiments, the first connecting assembly includes a first front diagonal rod 271, a first rear diagonal rod 272, and a first pivoting mechanism 273. The front end of the first front diagonal rod 271 is pivotally connected to the front end of the first front flipping rod 25, and the rear end of the first rear diagonal rod 272 is pivotally connected to the rear end of the first rear flipping rod 26. The first pivoting mechanism 273 is connected to the rear end of the first front push rod 23, the front end of the first rear push rod 24, the rear end of the first front diagonal rod 271, and the front end of the first rear diagonal rod 272, respectively, so that the four are pivotally connected to each other. On the one hand, the first front diagonal rod 271 and the first rear diagonal rod 272 increase the overall support strength of the first folding bracket 2. On the other hand, the first front diagonal rod 271, the first rear diagonal rod 272, and the first pivoting mechanism 273 realize the connection between the first front push rod 23, the first rear push rod 24, the first front flipping rod 25, and the first rear flipping rod 26, forming a structurally stable first flipping body.

[0041] Furthermore, in some embodiments, the first connecting assembly further includes a first front top pivot 274 disposed between the first pivoting mechanism 273 and the first front push rod 23, and a first rear top pivot 275 disposed between the first pivoting mechanism 273 and the first rear push rod 24. The front end of the first front top pivot 274 is pivotally connected to the rear end of the first front push rod 23, and the rear end of the first front top pivot 274 is pivotally connected to the first pivoting mechanism 273; the rear end of the first rear top pivot 275 is pivotally connected to the first rear push rod 24. The front end is pivotally connected, with the front end of the first rear top pivot 275 pivotally connected to the first pivoting mechanism 273; the first connecting assembly also includes a first front support rod 276 and a first rear support rod 277, the upper end of the first front support rod 276 is pivotally connected to the first front top pivot 274, the lower end of the first front support rod 276 is pivotally connected to the rear end of the first front flip rod 25, the upper end of the first rear support rod 277 is pivotally connected to the first rear top pivot 275, and the lower end of the first rear support rod 277 is pivotally connected to the front end of the first rear flip rod 26.

[0042] The first pivoting mechanism 273 includes a first front top joint pivotally connected to a first front top pivot 274, a first rear top joint pivotally connected to a first rear top pivot 275, a first front oblique joint pivotally connected to a first front oblique bar 271, and a first rear oblique joint pivotally connected to a first rear oblique bar 272.

[0043] When the first folding bracket 2 is in the unfolded state, the first front top joint and the first rear top joint of the first pivoting mechanism 273 are arranged laterally, and the first front oblique joint and the first rear oblique joint are arranged obliquely. When the first folding bracket 2 is switched from the unfolded state to the folded state, the end of the first front top joint of the first pivoting mechanism 273 that is pivotally connected to the first front top pivot seat 274 and the end of the first rear top joint that is pivotally connected to the first rear top pivot seat 275 gradually move upward toward each other, and the end of the first front oblique joint that is pivotally connected to the first front oblique rod 271 and the end of the first rear oblique joint that is pivotally connected to the first rear oblique rod 272 gradually move downward toward each other, forming an "X" shape. At this time, the first front top pivot 274 and the first rear top pivot 275 move upward, causing the rear end of the first front top rod 23 and the front end of the first rear top rod 24 to move upward, and simultaneously causing the first front support rod 276 and the first rear support rod 277 to move upward, thereby causing the rear end of the first front flip rod 25 and the front end of the first rear flip rod 26 to move upward, and further causing the rear end of the first front bottom rod 21 and the front end of the first rear bottom rod 22 to move upward. The first connecting assembly not only connects the first front top rod 23, the first rear top rod 24, the first front flip rod 25, and the first rear flip rod 26, but also drives the first front bottom rod 21 and the first rear bottom rod 22 to rotate relative to each other, and drives the first front top rod 23 and the first rear top rod 24 to rotate relative to each other, so that folding and unfolding can be completed in one operation.

[0044] Furthermore, in some embodiments, the rear end of the first front bottom rod 21 is directly pivotally connected to the front end of the first rear bottom rod 22.

[0045] Furthermore, in some embodiments, the rear end of the first front bottom rod 21 and the front end of the first rear bottom rod 22 are pivotally connected via a first front bottom pivot tube 211 and a first rear bottom pivot seat 221. Specifically, the rear end of the first front bottom rod 21 is provided with a first front bottom pivot tube 211, and the front end of the first rear bottom rod 22 is provided with a first rear bottom pivot seat 221. The first rear bottom pivot seat 221 is pivotally connected to the middle of the first front bottom pivot tube 211, and when the first folding bracket 2 is unfolded, the first front bottom pivot tube 211 abuts against the upper side of the first rear bottom pivot seat 221.

[0046] Furthermore, such as Figures 1 to 3As shown, in some embodiments, the second folding bracket 3 only has folding and unfolding functions, and does not have a flip-open function. Specifically, the second folding bracket 3 includes a second front bottom rod 31, a second rear bottom rod 32, a second front top rod 33, and a second rear top rod 34. The second front bottom rod 31 is pivotally connected to the second rear bottom rod 32, and the second front top rod 33 is pivotally connected to the second rear top rod 34. The pivot axis of the second front bottom rod 31 and the second rear bottom rod 32 is parallel to the pivot axis of the second front top rod 33 and the second rear top rod 34. The second front bottom rod 31 can rotate relative to the second rear bottom rod 32, and the second front top rod 33 can rotate relative to the second rear top rod 34, so that the second folding bracket 3 can be folded or unfolded.

[0047] Furthermore, in some embodiments, the second folding bracket 3 further includes a second connecting assembly, which includes a second front diagonal rod 371, a second rear diagonal rod 372, and a second pivoting mechanism 373. The front end of the second front diagonal rod 371 is pivotally connected to the front end of the second front bottom rod 31, and the rear end of the second rear diagonal rod 372 is pivotally connected to the rear end of the second rear bottom rod 32. The second pivoting mechanism 373 is connected to the rear end of the second front top rod 33, the front end of the second rear top rod 34, the rear end of the second front diagonal rod 371, and the front end of the second rear diagonal rod 372, respectively, so that the four components are pivotally connected to each other. On the one hand, the second front diagonal rod 371 and the second rear diagonal rod 372 increase the overall support strength of the second folding bracket 3. On the other hand, the second front diagonal rod 371, the second rear diagonal rod 372, and the second pivoting mechanism 373 realize the connection between the second front top rod 33, the second rear top rod 34, the second front bottom rod 31, and the second rear bottom rod 32, forming a structurally stable second folding bracket 3.

[0048] Furthermore, in some embodiments, the second connecting assembly further includes a second front top pivot 374 disposed between the second pivot mechanism 373 and the second front push rod 33, and a second rear top pivot 375 disposed between the second pivot mechanism 373 and the second rear push rod 34. The front end of the second front top pivot 374 is pivotally connected to the rear end of the second front push rod 33, and the rear end of the second front top pivot 374 is pivotally connected to the second pivot mechanism 373; the rear end of the second rear top pivot 375 is pivotally connected to the second rear push rod 34. The front end of the second rear top pivot 375 is pivotally connected to the second pivot mechanism 373; the second connecting assembly also includes a second front support rod 376 and a second rear support rod 377, the upper end of the second front support rod 376 is pivotally connected to the second front top pivot 374, the lower end of the second front support rod 376 is pivotally connected to the rear end of the second front bottom rod 31, the upper end of the second rear support rod 377 is pivotally connected to the second rear top pivot 375, and the lower end of the second rear support rod 377 is pivotally connected to the front end of the second rear bottom rod 32.

[0049] The second pivoting mechanism 373 includes a second front top joint pivotally connected to the second front top pivot 374, a second rear top joint pivotally connected to the second rear top pivot 375, a second front oblique joint pivotally connected to the second front oblique rod 371, and a second rear oblique joint pivotally connected to the second rear oblique rod 372.

[0050] When the second folding bracket 3 is in the unfolded state, the second front top joint and the second rear top joint of the second pivoting mechanism 373 are arranged laterally, while the second front oblique joint and the second rear oblique joint are arranged obliquely. When the second folding bracket 3 is switched from the unfolded state to the folded state, the end of the second front top joint of the second pivoting mechanism 373 that is pivotally connected to the second front top pivot seat 374 and the end of the second rear top joint that is pivotally connected to the second rear top pivot seat 375 gradually move upward toward each other, while the end of the second front oblique joint that is pivotally connected to the second front oblique rod 371 and the end of the second rear oblique joint that is pivotally connected to the second rear oblique rod 372 gradually move downward toward each other, forming an "X" shape. At this time, the second front top pivot seat 374 and the second rear top pivot seat 375 move upward, driving the rear end of the second front top rod 33 and the front end of the second rear top rod 34 to move upward, and simultaneously driving the second front support rod 376 and the second rear support rod 377 to move upward, thereby driving the rear end of the second front bottom rod 31 and the front end of the second rear bottom rod 32 to move upward. The second connecting component not only connects the second front push rod 33, the second rear push rod 34, the second front bottom rod 31, and the second rear bottom rod 32, but also drives the second front bottom rod 31 and the second rear bottom rod 32 to rotate relative to each other, as well as drive the second front push rod 33 and the second rear push rod 34 to rotate relative to each other, so that the four components can be linked together and the folding and unfolding can be completed in one operation.

[0051] Furthermore, in some embodiments, the rear end of the second front bottom rod 31 is directly pivotally connected to the front end of the second rear bottom rod 32.

[0052] Furthermore, in some embodiments, the rear end of the second front bottom rod 31 and the front end of the second rear bottom rod 32 are pivotally connected via a second front bottom pivot tube 311 and a second rear bottom pivot seat 321. Specifically, the rear end of the second front bottom rod 31 is provided with a second front bottom pivot tube 311, and the front end of the second rear bottom rod 32 is provided with a second rear bottom pivot seat 321. The second rear bottom pivot seat 321 is pivotally connected to the middle of the second front bottom pivot tube 311, and when the second folding bracket 3 is unfolded, the second front bottom pivot tube 311 abuts against the upper side of the second rear bottom pivot seat 321.

[0053] In the first folding bracket 2, the front end of the first front push rod 23 and the rear end of the first rear push rod 24 are pivotally connected to the upper part of the main frame 1 and are detachably connected. The front end of the first front bottom rod 21 and the rear end of the first rear bottom rod 22 are pivotally connected to the lower part of the main frame 1. Correspondingly, in the second folding bracket 3, the front end of the second front push rod 33 and the rear end of the second rear push rod 34 are pivotally connected to the upper part of the main frame 1, and the front end of the second front bottom rod 31 and the rear end of the second rear bottom rod 32 are pivotally connected to the lower part of the main frame 1. When the first folding bracket 2 and the second folding bracket 3 are folded simultaneously, the main body of the folding trolley is folded as a whole. When the first folding bracket 2 and the second folding bracket 3 are unfolded simultaneously, the main body of the folding trolley is unfolded as a whole.

[0054] The first folding bracket 2 is detachably connected to the main frame 1 via a locking device 4. Specifically, the locking device 4 includes a first locking seat 41 and a second locking seat 42, one of which is disposed on the first folding bracket 2, and the other of which is disposed on the main frame 1.

[0055] In some embodiments, the first locking seat 41 and the second locking seat 42 are plugged into each other. For example, the first locking seat 41 is provided with either a plug or a slot, and the second locking seat 42 is provided with the other plug or a slot. When the plug and the slot are engaged, the first locking seat 41 and the second locking seat 42 are locked together.

[0056] In some embodiments, the first locking seat 41 and the second locking seat 42 are engaged. For example, the first locking seat 41 is provided with either a buckle or a slot, and the second locking member 42 is provided with either a buckle or a slot. When the buckle and the slot are engaged, the first locking seat 41 and the second locking seat 42 are locked together.

[0057] In some embodiments, the first locking seat 41 and the second locking seat 42 are connected by a locking member 43.

[0058] Specifically, the first locking seat 41 has a first locking hole 411, and the second locking seat 42 has a second locking hole 421. The locking member 43 passes through the first locking hole 411 and extends into the second locking hole 421 to connect the first locking seat 41 and the second locking seat 42. The locking member 43 is a pin. When the locking member 43 is simultaneously inserted into the first locking hole 411 and the second locking hole 421, the first locking seat 41 and the second locking seat 42 are locked. When the locking member 43 is withdrawn from either the first locking hole 411 or the second locking hole 421, the first locking seat 41 and the second locking seat 42 are unlocked. The structure is simple, and locking and unlocking are convenient.

[0059] Furthermore, such as Figure 4 and Figure 5 As shown, in some embodiments, the first locking seat 41 is provided with a mounting groove 412, the mounting groove 412 is located on one side of the first locking hole 411 and communicates with the first locking hole 411, the locking member 43 is movably disposed in the mounting groove 412, one end of the locking member 43 passes through the first locking hole 411, and the other end of the locking member 43 is provided with a self-locking spring 44 between it and the side wall of the mounting groove 412. The self-locking spring 44 has a tendency to drive the locking member 43 to move in the direction of extending into the second locking hole 421; the locking member 43 is provided with an unlocking module 45. When the unlocking module 45 is driven to move away from the second locking hole 421, it drives the locking member 43 to exit the second locking hole 421. When it is necessary to disengage the first locking seat 41 and the second locking seat 42, move the unlocking module 45 away from the second locking hole 421 and drive the locking member 43 out of the second locking hole 421, thus disengaging the first locking seat 41 and the second locking seat 42. When it is necessary to lock the first locking seat 41 and the second locking seat 42, first move the unlocking module 45 away from the second locking hole 421 and align the first locking hole 411 and the second locking hole 421 coaxially. Then release the unlocking module 45. At this time, the self-locking spring 44 drives the locking member 43 to move into the second locking hole 421 and continues to push the locking member 43 in the direction of extending into the second locking hole 421, so as to connect the first locking seat 41 and the second locking seat 42 and maintain the locked state. The locking and unlocking operations are simple and very convenient to use.

[0060] Furthermore, in some embodiments, the first locking seat 41 is provided with a limiting groove 413 and a through hole 414 connecting the limiting groove 413 and the mounting groove 412. The length direction of the limiting groove 413 is the same as the axial direction of the first locking hole 411. The unlocking module 45 includes a dragging part 451 and a connecting part 452. The dragging part 451 is movably disposed within the limiting groove 413. One end of the connecting part 452 is fixedly connected to the locking member 43, and the other end of the connecting part 452 passes through the through hole 414 and is fixedly connected to the dragging part 451. The limiting groove 413 effectively guides the movement of the dragging part 451. Through the limiting cooperation between the dragging part 451 and the limiting groove 413, the stability of the movement of the dragging part 451 is effectively improved, thereby improving the stability of the movement of the locking member 43, making the locking and unlocking of the first locking seat 41 and the second locking seat 42 smoother.

[0061] Further, in some embodiments, the locking member 43 includes a locking portion 431 and a sleeve portion 432. The diameter of the locking portion 431 is larger than the diameter of the sleeve portion 432. The side wall of the mounting groove 412 is provided with a positioning groove 415 and a positioning hole 416 coaxial with the first locking hole 411. One end of the locking member 43 passes through the first locking hole 411, and the other end of the locking member 43 engages with the positioning hole 416. The self-locking spring 44 is sleeved on the outer periphery of the sleeve portion 432, and one end of the self-locking spring 44 abuts against the locking portion 431, and the other end of the self-locking spring 44 abuts against the positioning groove 415. This ensures that the locking member 43 is stably installed between the first locking hole 411 and the positioning hole 416, and that the self-locking spring 44 is stably installed between the locking member 43 and the positioning groove 415.

[0062] Furthermore, in some embodiments, the first locking seat 41 is provided with a first insert plate 417 and a first slot 418, and the second locking seat 42 is provided with a second insert plate 422 and a second slot 423. When the first locking seat 41 and the second locking seat 42 are connected, the first insert plate 417 engages with the second slot 423, and the second insert plate 422 engages with the first slot 418. When the first insert plate 417 engages with the second slot 423, and when the second insert plate 422 engages with the first slot 418, the first locking seat 41 and the second locking seat 42 achieve a plug-in engagement, so that the first locking hole 411 and the second locking hole 421 are coaxially opposite, thereby facilitating the locking of the first locking seat 41 and the second locking seat 42 by the locking member 43.

[0063] Furthermore, such as Figure 6 and Figure 7 As shown, in some embodiments, the second folding bracket 3 not only has the function of folding and unfolding, but also has the function of flipping open. That is, the upper end of the second folding bracket 3 can be flipped downward relative to the lower end in a direction away from the storage cavity 101 to form a second side opening 103 communicating with the storage cavity 101 on the other side of the main frame 1.

[0064] Specifically, the second folding bracket 3 includes a second front bottom rod 31, a second rear bottom rod 32, a second front top rod 33, and a second rear top rod 34. The second front bottom rod 31 is pivotally connected to the second rear bottom rod 32, and the second front top rod 33 is pivotally connected to the second rear top rod 34. When the pivot axes of the second front bottom rod 31 and the second rear bottom rod 32 are parallel to the pivot axes of the second front top rod 33 and the second rear top rod 34, the second front bottom rod 31 can rotate relative to the second rear bottom rod 32, and the second front top rod 33 can rotate relative to the second rear top rod 34, so that the second folding bracket 3 can be folded or unfolded. The second folding bracket 3 also includes a second front flip rod 35, a second rear flip rod 36, and a second connecting assembly. The front flip rod 35 is parallel to and hinged to the second front bottom rod 31, and the second rear flip rod 36 is parallel to and hinged to the second rear bottom rod 32. The second connecting assembly connects the second front top rod 33, the second rear top rod 34, the second front flip rod 35, and the second rear flip rod 36 to form the second flip body. When the hinge axis of the second front flip rod 35 and the second front bottom rod 31 is coaxial with the hinge axis of the second rear flip rod 36 and the second rear bottom rod 32, the second front flip rod 35 can rotate relative to the second front bottom rod 31, and the second rear flip rod 36 can rotate relative to the second rear bottom rod 32, so that the upper end of the second flip body can flip downward relative to the lower end in a direction away from the storage cavity 101.

[0065] Furthermore, in some embodiments, the second connecting assembly includes a second front inclined rod 371, a second rear inclined rod 372, and a second pivoting mechanism 373. The front end of the second front inclined rod 371 is pivotally connected to the front end of the second front flip rod 35, and the rear end of the second rear inclined rod 372 is pivotally connected to the rear end of the second rear flip rod 36. The second pivoting mechanism 373 is connected to the rear end of the second front push rod 33, the front end of the second rear push rod 34, the rear end of the second front inclined rod 371, and the front end of the second rear inclined rod 372, respectively, so that the four are pivotally connected to each other. On the one hand, the second front inclined rod 371 and the second rear inclined rod 372 increase the overall support strength of the second folding bracket 3. On the other hand, the second front inclined rod 371, the second rear inclined rod 372, and the second pivoting mechanism 373 realize the connection between the second front push rod 33, the second rear push rod 34, the second front flip rod 35, and the second rear flip rod 36, forming a structurally stable first flipping body.

[0066] Furthermore, in some embodiments, the second connecting assembly further includes a second front top pivot 374 disposed between the second pivot mechanism 373 and the second front push rod 33, and a second rear top pivot 375 disposed between the second pivot mechanism 373 and the second rear push rod 34. The front end of the second front top pivot 374 is pivotally connected to the rear end of the second front push rod 33, and the rear end of the second front top pivot 374 is pivotally connected to the second pivot mechanism 373; the rear end of the second rear top pivot 375 is pivotally connected to the second rear push rod 34. The front end is pivotally connected to the second rear top pivot 375, and the front end of the second rear top pivot 375 is pivotally connected to the second pivot mechanism 373; the second connecting assembly also includes a second front support rod 376 and a second rear support rod 377, the upper end of the second front support rod 376 is pivotally connected to the second front top pivot 374, the lower end of the second front support rod 376 is pivotally connected to the rear end of the second front flip rod 35, the upper end of the second rear support rod 377 is pivotally connected to the second rear top pivot 375, and the lower end of the second rear support rod 377 is pivotally connected to the front end of the second rear flip rod 36.

[0067] The second pivoting mechanism 373 includes a second front top joint pivotally connected to the second front top pivot 374, a second rear top joint pivotally connected to the second rear top pivot 375, a second front oblique joint pivotally connected to the second front oblique rod 371, and a second rear oblique joint pivotally connected to the second rear oblique rod 372.

[0068] When the second folding bracket 3 is in the unfolded state, the second front top joint and the second rear top joint of the second pivoting mechanism 373 are arranged laterally, while the second front oblique joint and the second rear oblique joint are arranged obliquely. When the second folding bracket 3 is switched from the unfolded state to the folded state, the end of the first front top joint of the second pivoting mechanism 373 that is pivotally connected to the second front top pivot seat 374 and the end of the second rear top joint that is pivotally connected to the second rear top pivot seat 375 gradually move upward toward each other, while the end of the second front oblique joint that is pivotally connected to the second front oblique rod 371 and the end of the second rear oblique joint that is pivotally connected to the second rear oblique rod 372 gradually move downward toward each other, forming an "X" shape. At this time, the second front top pivot 374 and the second rear top pivot 375 move upward, causing the rear end of the second front top rod 33 and the front end of the second rear top rod 34 to move upward, and simultaneously causing the second front support rod 376 and the second rear support rod 377 to move upward, thereby causing the rear end of the second front flip rod 35 and the front end of the second rear flip rod 36 to move upward, and further causing the rear end of the second front bottom rod 31 and the front end of the second rear bottom rod 32 to move upward. The second connecting assembly not only connects the second front top rod 33, the second rear top rod 34, the second front flip rod 35, and the second rear flip rod 36, but also drives the relative rotation of the second front bottom rod 31 and the second rear bottom rod 32, as well as the relative rotation of the second front top rod 33 and the second rear top rod 34, so that the four components can be linked together, thus completing the folding and unfolding in one operation.

[0069] Furthermore, in some embodiments, the rear end of the second front bottom rod 31 is directly pivotally connected to the front end of the second rear bottom rod 32.

[0070] Furthermore, in some embodiments, the rear end of the second front bottom rod 31 and the front end of the second rear bottom rod 32 are pivotally connected via a second front bottom pivot tube 311 and a second rear bottom pivot seat 321. Specifically, the rear end of the second front bottom rod 31 is provided with a second front bottom pivot tube 311, and the front end of the second rear bottom rod 32 is provided with a second rear bottom pivot seat 321. The second rear bottom pivot seat 321 is pivotally connected to the middle of the second front bottom pivot tube 311, and when the second folding bracket 3 is unfolded, the second front bottom pivot tube 311 abuts against the upper side of the second rear bottom pivot seat 321.

[0071] In the first folding bracket 2, the front end of the first front push rod 23 and the rear end of the first rear push rod 24 are pivotally and detachably connected to the upper part of the main frame 1, respectively; the front end of the first front bottom rod 21 and the rear end of the first rear bottom rod 22 are pivotally connected to the lower part of the main frame 1, respectively. Correspondingly, in the second folding bracket 3, the front end of the second front push rod 33 and the rear end of the second rear push rod 34 are pivotally and detachably connected to the upper part of the main frame 1, respectively; the front end of the second front bottom rod 31 and the rear end of the second rear bottom rod 32 are pivotally connected to the lower part of the main frame 1, respectively. When the first folding bracket 2 and the second folding bracket 3 fold simultaneously, the folding trolley body folds as a whole; when the first folding bracket 2 and the second folding bracket 3 unfold simultaneously, the folding trolley body unfolds as a whole. The first folding bracket 2 and the main frame 1, as well as the second folding bracket 3 and the main frame 1, are detachably connected by locking devices 4.

[0072] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0073] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A side-opening folding trolley, characterized in that, The folding trolley body includes a main frame (1) and a first folding bracket (2) and a second folding bracket (3) located on two opposite sides of the main frame (1). A storage cavity (101) is formed between the main frame (1), the first folding bracket (2), and the second folding bracket (3). The upper end of the first folding bracket (2) can be flipped downward relative to the lower end in a direction away from the storage cavity (101) to form a first side opening (102) communicating with the storage cavity (101) on one side of the main frame (1).

2. The side-opening folding trolley according to claim 1, characterized in that, The first folding bracket (2) includes a first front bottom rod (21), a first rear bottom rod (22), a first front top rod (23), and a first rear top rod (24). The first front bottom rod (21) is pivotally connected to the first rear bottom rod (22), and the first front top rod (23) is pivotally connected to the first rear top rod (24). When the pivot axis of the first front bottom rod (21) and the first rear bottom rod (22) is parallel to the pivot axis of the first front top rod (23) and the first rear top rod (24), the first front bottom rod (21) can rotate relative to the first rear bottom rod (22), and the first front top rod (23) can rotate relative to the first rear top rod (24) so ​​that the first folding bracket (2) can be folded or unfolded. The first folding bracket (2) further includes a first front flip rod (25), a first rear flip rod (26) and a first connecting assembly. The first front flip rod (25) is parallel to and hinged to the first front bottom rod (21), and the first rear flip rod (26) is parallel to and hinged to the first rear bottom rod (22). The first connecting assembly connects the first front top rod (23), the first rear top rod (24), the first front flip rod (25) and the first rear flip rod (26) to form a first flipping body. When the hinge axis of the first front flip rod (25) and the first front bottom rod (21) is coaxial with the hinge axis of the first rear flip rod (26) and the first rear bottom rod (22), the first front flip rod (25) can rotate relative to the first front bottom rod (21), and the first rear flip rod (26) can rotate relative to the first rear bottom rod (22), so that the upper end of the first flip body can flip downward relative to the lower end in a direction away from the storage cavity (101).

3. A trolley according to claim 2, characterized in that, The first connecting assembly includes a first front diagonal bar (271), a first rear diagonal bar (272), and a first pivoting mechanism (273). The front end of the first front diagonal bar (271) is pivotally connected to the front end of the first front flipping bar (25), and the rear end of the first rear diagonal bar (272) is pivotally connected to the rear end of the first rear flipping bar (26). The first pivoting mechanism (273) is connected to the rear end of the first front push bar (23), the front end of the first rear push bar (24), the rear end of the first front diagonal bar (271), and the front end of the first rear diagonal bar (272) respectively, so that the four components are pivotally connected to each other.

4. A trolley according to claim 3, characterized in that, The first connecting assembly further includes a first front top pivot (274) disposed between the first pivot mechanism (273) and the first front push rod (23), and a first rear top pivot (275) disposed between the first pivot mechanism (273) and the first rear push rod (24). The front end of the first front top pivot (274) is pivotally connected to the rear end of the first front push rod (23), and the rear end of the first front top pivot (274) is pivotally connected to the first pivot mechanism (273). The rear end of the first rear top pivot (275) is pivotally connected to the front end of the first rear push rod (24), and the front end of the first rear top pivot (275) is pivotally connected to the first pivot mechanism (273). The first connecting assembly further includes a first front support rod (276) and a first rear support rod (277). The upper end of the first front support rod (276) is pivotally connected to the first front top pivot (274), the lower end of the first front support rod (276) is pivotally connected to the rear end of the first front flip rod (25), the upper end of the first rear support rod (277) is pivotally connected to the first rear top pivot (275), and the lower end of the first rear support rod (277) is pivotally connected to the front end of the first rear flip rod (26).

5. A trolley according to claim 4, characterized in that, The first front bottom rod (21) has a first front bottom pivot tube (211) at its rear end and a first rear bottom pivot seat (221) at its front end. The first rear bottom pivot seat (221) is pivotally connected to the middle of the first front bottom pivot tube (211), and when the first folding bracket (2) is unfolded, the first front bottom pivot tube (211) abuts against the upper side of the first rear bottom pivot seat (221).

6. A trolley according to any one of claims 1-5, characterized in that, The second folding bracket (3) includes a second front bottom rod (31), a second rear bottom rod (32), a second front top rod (33), a second rear top rod (34), the second front bottom rod (31) and the second rear bottom rod (32) are pivotally connected, and the second front top rod (33) and the second rear top rod (34) are pivotally connected; The pivot axis of the second front bottom rod (31) and the second rear bottom rod (32) is parallel to the pivot axis of the second front top rod (33) and the second rear top rod (34). The second front bottom rod (31) can rotate relative to the second rear bottom rod (32), and the second front top rod (33) can rotate relative to the second rear top rod (34) so ​​that the second folding bracket (3) can be folded or unfolded.

7. A trolley according to claim 6, characterized in that, The second folding bracket (3) further includes a second connecting assembly, which includes a second front diagonal bar (371), a second rear diagonal bar (372), and a second pivoting mechanism (373). The front end of the second front diagonal bar (371) is pivotally connected to the front end of the second front bottom bar (31), and the rear end of the second rear diagonal bar (372) is pivotally connected to the rear end of the second rear bottom bar (32). The second pivoting mechanism (373) is connected to the rear end of the second front top bar (33), the front end of the second rear top bar (34), the rear end of the second front diagonal bar (371), and the front end of the second rear diagonal bar (372) respectively, so that the four are pivotally connected to each other.

8. A trolley according to claim 7, characterized in that, The second connecting assembly further includes a second front top pivot (374) disposed between the second pivot mechanism (373) and the second front push rod (33), and a second rear top pivot (375) disposed between the second pivot mechanism (373) and the second rear push rod (34). The front end of the second front top pivot (374) is pivotally connected to the rear end of the second front push rod (33), and the rear end of the second front top pivot (374) is pivotally connected to the second pivot mechanism (373). The rear end of the second rear top pivot (375) is pivotally connected to the front end of the second rear push rod (34), and the front end of the second rear top pivot (375) is pivotally connected to the second pivot mechanism (373). The second connecting assembly further includes a second front support rod (376) and a second rear support rod (377). The upper end of the second front support rod (376) is pivotally connected to the second front top pivot (374), the lower end of the second front support rod (376) is pivotally connected to the rear end of the second front bottom rod (31), the upper end of the second rear support rod (377) is pivotally connected to the second rear top pivot (375), and the lower end of the second rear support rod (377) is pivotally connected to the front end of the second rear bottom rod (32).

9. A trolley according to any one of claims 1-5, characterized in that, The upper end of the second folding bracket (3) can be flipped downward relative to the lower end in a direction away from the storage cavity (101) to form a second side opening (103) communicating with the storage cavity (101) on the other side of the main frame (1).

10. A trolley according to claim 9, characterized in that, The second folding bracket (3) includes a second front bottom rod (31), a second rear bottom rod (32), a second front top rod (33), a second rear top rod (34), the second front bottom rod (31) and the second rear bottom rod (32) are pivotally connected, and the second front top rod (33) and the second rear top rod (34) are pivotally connected; When the pivot axis of the second front bottom rod (31) and the second rear bottom rod (32) is parallel to the pivot axis of the second front top rod (33) and the second rear top rod (34), the second front bottom rod (31) can rotate relative to the second rear bottom rod (32), and the second front top rod (33) can rotate relative to the second rear top rod (34) so ​​that the second folding bracket (3) can be folded or unfolded. The second folding bracket (3) further includes a second front flip rod (35), a second rear flip rod (36), and a second connecting assembly. The second front flip rod (35) is parallel to and hinged to the second front bottom rod (31), and the second rear flip rod (36) is parallel to and hinged to the second rear bottom rod (32). The second connecting assembly connects the second front top rod (33), the second rear top rod (34), the second front flip rod (35), and the second rear flip rod (36) to form a second flipping body. When the hinge axis of the second front flip rod (35) and the second front bottom rod (31) is coaxial with the hinge axis of the second rear flip rod (36) and the second rear bottom rod (32), the second front flip rod (35) can rotate relative to the second front bottom rod (31), and the second rear flip rod (36) can rotate relative to the second rear bottom rod (32), so that the upper end of the second flip body can flip downward relative to the lower end in a direction away from the storage cavity (101).

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