Foldable cart

Abstract

The utility model discloses a foldable cart which comprises a frame and wheels mounted at the bottom of the frame, and is characterized in that the frame has a folded state and an unfolded state, the frame comprises a front support assembly, a rear support assembly, a lower support assembly and a supporting frame assembly, and the lower end of the front support assembly and the lower end of the rear support assembly are provided with a front connecting rod unit and a rear connecting rod unit respectively; the lower support assembly comprises a first lower support unit and a second lower support unit, first ends of the first lower support unit and the second lower support unit are rotatably connected to the lower end of the front support assembly and the lower end of the rear support assembly respectively, and second ends of the first lower support unit and the second lower support unit are rotatably connected. The supporting frame assembly comprises a first supporting frame unit, a second supporting frame unit, a first rotating rod unit and a second rotating rod unit, the first ends of the first supporting frame unit and the second supporting frame unit are rotatably connected to the lower ends of the front connecting rod unit and the rear connecting rod unit, and the second ends of the first supporting frame unit and the second supporting frame unit are rotatably connected. The two ends of the first rotating rod unit and the two ends of the second rotating rod unit are rotationally connected to the first lower support unit and the first supporting frame unit and the second lower support unit and the second supporting frame unit respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of infant products, in particular to a foldable stroller. Background Art

[0002] With the development of society and the improvement of people's living standards, outdoor leisure has become a favorite sport and leisure method. More and more parents and other guardians prefer to accompany their infants and young children to play outdoors in their free time. As a child product suitable for outdoor play, infant strollers not only allow infants and young children to sit or lie in the stroller, making it convenient to take children to play everywhere, but also can hold some outdoor products, making the stroller a labor-saving and convenient tool for transportation.

[0003] In the prior art, the cart has many rods, the folding parts are complicated, the folding operation is cumbersome, and the user's fingers are easily pinched during the folding process. In addition, the volume of such folding cart products is still large after folding, which is inconvenient to carry, and they are not stable in the folded state and are easily deformed.

[0004] Therefore, the utility model provides a folding cart which can effectively solve the above problems. The folded cart has a simple structure, and the product volume is small and stable. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a foldable cart with a simple structure and a small and stable product size after folding.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A foldable cart comprises a frame and wheels mounted on the bottom of the frame, wherein the frame has a folded state and an unfolded state, and the frame comprises:

[0008] A front bracket assembly, wherein a front connecting rod unit is provided at the lower end of the front bracket assembly;

[0009] A rear bracket assembly, the rear bracket assembly is arranged front and rearwardly opposite to the front bracket assembly, and a rear connecting rod unit is provided at the lower end of the rear bracket assembly;

[0010] A lower bracket assembly, the lower bracket assembly comprising a first lower bracket unit and a second lower bracket unit, wherein a first end of the first lower bracket unit is rotatably connected to a lower end of the front bracket assembly, a first end of the second lower bracket unit is rotatably connected to a lower end of the rear bracket assembly, and a second end of the first lower bracket unit is rotatably connected to a second end of the second lower bracket unit;

[0011] A support frame assembly, the support frame assembly includes a first support frame unit, a second support frame unit, a first rotating rod unit and a second rotating rod unit, the first end of the first support frame unit is rotatably connected to the lower end of the front connecting rod unit, the first end of the second support frame unit is rotatably connected to the lower end of the rear connecting rod unit, the second end of the first support frame unit is rotatably connected to the second end of the second support frame unit, both ends of the first rotating rod unit are rotatably connected to the first lower bracket unit and the first support frame unit respectively, and both ends of the second rotating rod unit are rotatably connected to the second lower bracket unit and the second support frame unit respectively.

[0012] As an improvement of the present invention, the first lower bracket unit includes a first limit member arranged at the second end, the second end of the second lower bracket unit is rotatably connected to the first limit member, and when the frame is in the unfolded state, the first limit member abuts against the second lower bracket unit.

[0013] As an improvement of the present invention, a first locking piece is provided in the second end of the second lower bracket unit, the locking end of the first locking piece passes through the second end side wall of the second lower bracket unit, and the first limiting piece is provided with a first locking hole. When the frame is in the expanded state, the locking end of the first locking piece is inserted into the first locking hole.

[0014] As an improvement of the present invention, an unlocking button is provided on the first limiting member, and the pressing end of the unlocking button is arranged toward the first locking hole. Under the drive of external force, the pressing end of the unlocking button moves toward the first locking hole to drive the locking end of the first locking member to be detached from the first locking hole.

[0015] As an improvement of the present invention, a second limiter is provided at the second end of the second support frame unit, and when the frame is in the unfolded state, the second limiter abuts against the first support frame unit.

[0016] As an improvement of the present invention, the frame also includes a fixing member, a first end of the fixing member is connected to the rear support assembly, and a second end of the fixing member is detachably connected to the front support assembly. When the frame is in a folded state, the second end of the fixing member is connected to the front support assembly, and when the frame is in an unfolded state, the second end of the fixing member is detached from the front support assembly.

[0017] As an improvement of the present invention, the frame also includes a push rod assembly and a locking member, the push rod assembly is rotatably connected to the rear bracket assembly, the locking member is connected to the push rod assembly and the rear bracket assembly, and the locking member is used to allow or hinder relative rotation between the push rod assembly and the rear bracket assembly.

[0018] As an improvement of the utility model, the wheels include movable casters and fixed casters, the movable casters are connected to the bottom of the front bracket assembly, and the fixed casters are connected to the bottom of the rear bracket assembly.

[0019] As an improvement of the present invention, the frame also includes a second locking assembly, which moves between a locking position and an unlocking position. A plurality of second locking holes are provided along the edge of the rotating shaft on the inner side of the fixed caster. When the second locking assembly moves to the locking position, the locking rod of the second locking assembly is inserted into the second locking hole. When the second locking assembly moves to the unlocking position, the locking rod of the second locking assembly is detached from the second locking hole.

[0020] As an improvement of the present utility model, the second locking assembly also includes a driving pedal and a driving rod, the driving pedal is connected to the driving rod, and a driving inclined surface is provided at the end of the driving rod. The driving pedal and the driving rod rotate around the rotation axis of the driving rod under the action of external force, and the first end of the locking rod abuts against the driving inclined surface and slides along the surface of the driving inclined surface so that the locking rod can be retracted, inserted into or detached from the second locking hole.

[0021] As an improvement of the present invention, the second locking assembly also includes a return spring, one end of which is connected to the connecting part at the bottom of the frame, and the other end of which is connected to the locking rod. The elastic force of the return spring causes the locking rod to have a movement tendency away from the second locking hole.

[0022] As an improvement of the utility model, the upper surface of the driving pedal is provided with friction lines.

[0023] As an improvement of the present utility model, a downwardly recessed foot accommodating space is formed between the first rotating rod unit, the second rotating rod unit, part of the first lower bracket unit, part of the second lower bracket unit, part of the first supporting frame unit and part of the second supporting frame unit.

[0024] As an improvement of the present invention, it also includes a cover body, the upper end of the front bracket assembly and the upper end of the rear bracket assembly are both provided with a first connecting piece, the upper end of the cover body is connected to the first connecting piece, and the lower end of the cover body is connected to the lower end of the front bracket assembly and the lower end of the rear bracket assembly or the lower bracket assembly.

[0025] As an improvement of the present invention, a connecting belt is provided at the upper end of the cover body, and the first connecting member is provided with a through hole, and the free end of the connecting belt passes through the through hole and is connected to the surface of the cover body.

[0026] As an improvement of the utility model, it also includes a sunshade cover assembly, which includes a second connecting member, a plurality of sunshade brackets and a sunshade cover body. The second connecting member is detachably connected to the first connecting member to connect or detach the sunshade cover assembly to the frame.

[0027] As an improvement of the present utility model, one of the first connecting member and the second connecting member is provided with an insertion block, and the other of the first connecting member and the second connecting member is provided with an insertion slot, and the insertion block is inserted into the insertion slot.

[0028] As an improvement of the present utility model, the second connecting member is provided with a first rotating part and a second rotating part, the first rotating part is rotatably connected to the second rotating part, one sunshade bracket is connected to the first rotating part, and the other sunshade bracket is connected to the second rotating part.

[0029] As an improvement of the present invention, the frame further comprises a traction assembly, the traction assembly is rotatably connected to the front bracket assembly, and the traction assembly is used to allow a user to use the traction assembly.

[0030] As an improvement of the present utility model, the traction assembly includes a traction rod, a connecting rod and a connecting shell, the traction rod is slidably connected to the connecting shell, one end of the connecting rod is rotatably connected to the lower part of the front bracket assembly, and the other end of the connecting rod is linked to the connecting shell; the traction rod is provided with a plurality of third locking positions, the connecting shell is provided with a third locking piece, and the third locking piece is connected to any one of the third locking positions.

[0031] The beneficial effects of the utility model are as follows: through the arrangement of the above-mentioned structure, when in use, the front bracket assembly and the rear bracket assembly are pulled in the front and rear directions respectively, and the two are separated from each other until the first lower bracket unit and the second lower bracket unit are flush and in the same plane, and the first support frame unit and the second support frame unit are flush and in the same plane. At this time, the frame is in an unfolded state, which is convenient for users to sit or lie down, and the support frame assembly can provide additional supporting force to hinder the relative rotation of the first lower bracket unit and the second lower bracket unit, and the product structure is stable; when storing, the middle part of the lower bracket assembly and the middle part of the support frame assembly are moved upward, the first lower bracket unit and the second lower bracket unit rotate relatively, the first lower bracket unit rotates relative to the front bracket assembly, the second lower bracket unit rotates relative to the front bracket assembly, the first support frame unit and the second support frame unit rotate relatively, the first support frame unit rotates relative to the front connecting rod unit, the second support frame unit rotates relative to the rear connecting rod unit, the front bracket assembly and the rear bracket assembly are close to each other, the overall volume of the product is small, and it is convenient to store and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0034] Figure 1 It is a structural schematic diagram of the utility model in a pushing state;

[0035] Figure 2 It is a structural schematic diagram of the utility model in the traction state;

[0036] Figure 3 This is a structural schematic diagram of the utility model at one angle in the unfolded state of the frame;

[0037] Figure 4 It is a structural schematic diagram of the utility model in another angle when the frame is in an expanded state;

[0038] Figure 5 It is a side view of the frame of the utility model in an expanded state;

[0039] Figure 6 This is a schematic diagram of the structure of the utility model in a semi-folded state of the frame;

[0040] Figure 7 It is a structural schematic diagram of the utility model in a folded state of the frame;

[0041] Figure 8 yes Figure 1 Enlarged view of circle A;

[0042] Fig. 9 yes Figure 6 Enlarged view of circle B;

[0043] Fig.10 is a cross-sectional view of the second locking assembly of the utility model in the unlocked position;

[0044] Fig.11 is a cross-sectional view of the second locking assembly of the utility model in the locked position;

[0045] Fig.12 It is a schematic diagram of a partially exploded structure of the second locking assembly of the utility model at one angle;

[0046] Fig.13 It is a schematic diagram of a partial explosion structure of the second locking assembly of the utility model from another angle. DETAILED DESCRIPTION

[0047] Reference Figures 1 to 13 A foldable cart comprises a frame 100 and wheels 200 mounted at the bottom of the frame 100, wherein the frame 100 has a folded state and an unfolded state, and the frame 100 comprises:

[0048] A front bracket assembly 110, wherein a front connecting rod unit 111 is provided at the lower end of the front bracket assembly 110;

[0049] A rear support assembly 120, wherein the rear support assembly 120 is arranged front-to-rear with the front support assembly 110, and a rear connecting rod unit 121 is provided at the lower end of the rear support assembly 120;

[0050] A lower bracket assembly 130, the lower bracket assembly 130 includes a first lower bracket unit 131 and a second lower bracket unit 132, the first lower bracket unit 131 has a first end rotatably connected to the lower end of the front bracket assembly 110, the second lower bracket unit 132 has a first end rotatably connected to the lower end of the rear bracket assembly 120, and the first lower bracket unit 131 has a second end rotatably connected to the second end of the second lower bracket unit 132;

[0051] The support frame assembly 140 includes a first support frame unit 141, a second support frame unit 142, a first rotating rod unit 143 and a second rotating rod unit 144, wherein the first end of the first support frame unit 141 is rotatably connected to the lower end of the front connecting rod unit 111, the first end of the second support frame unit 142 is rotatably connected to the lower end of the rear connecting rod unit 121, the second end of the first support frame unit 141 is rotatably connected to the second end of the second support frame unit 142, both ends of the first rotating rod unit 143 are rotatably connected to the first lower bracket unit 131 and the first support frame unit 141 respectively, and both ends of the second rotating rod unit 144 are rotatably connected to the second lower bracket unit 132 and the second support frame unit 142 respectively.

[0052] With the arrangement of the above structure, when in use, the front bracket assembly 110 and the rear bracket assembly 120 are pulled in the front and rear directions respectively, and the two are separated from each other until the first lower bracket unit 131 and the second lower bracket unit 132 are flush and in the same plane, and the first support frame unit 141 and the second support frame unit 142 are flush and in the same plane. At this time, the frame 100 is in an unfolded state, which is convenient for the user to sit or lie down. The support frame assembly 140 can provide additional supporting force to prevent the first lower bracket unit 131 and the second lower bracket unit 132 from rotating relative to each other, and the product structure is stable. When stored, the lower bracket assembly 130 is The first lower bracket unit 131 and the second lower bracket unit 132 rotate relative to each other, the first lower bracket unit 131 rotates relative to the front bracket assembly 110, the second lower bracket unit 132 rotates relative to the front bracket assembly 110, the first support frame unit 141 and the second support frame unit 142 rotate relative to each other, the first support frame unit 141 rotates relative to the front connecting rod unit 111, the second support frame unit 142 rotates relative to the rear connecting rod unit 121, the front bracket assembly 110 and the rear bracket assembly 120 are close to each other, the overall volume of the product is small, and it is convenient to store and transport.

[0053] In this embodiment, the first lower bracket unit 131 includes a first stopper 133 disposed at the second end, and the second end of the second lower bracket unit 132 is rotatably connected to the first stopper 133. When the frame 100 is in the unfolded state, the first stopper 133 abuts against the second lower bracket unit 132. Through the arrangement of the above structure, when in use, when the frame 100 is in the unfolded state, the first lower bracket unit 131 and the second lower bracket unit 132 are flush and in the same plane. At this time, the first stopper 133 abuts against the second lower bracket unit 132, which can prevent the first lower bracket unit 131 and the second lower bracket unit 132 from continuing to rotate downward relative to each other, limit the relative positions of the two, so that the product is stably fixed in the unfolded state, convenient for users to use, and the product structure is stable and safe to use.

[0054] In this embodiment, a first locking member 134 is provided in the second end of the second lower bracket unit 132, and the locking end of the first locking member 134 passes through the second end side wall of the second lower bracket unit 132. The first limiting member 133 is provided with a first locking hole 135. When the frame 100 is in the unfolded state, the locking end of the first locking member 134 is inserted into the first locking hole 135. With the arrangement of the above structure, when the frame 100 is in the unfolded state, the first lower bracket unit 131 and the second lower bracket unit 132 are flush and in the same plane, and the locking end of the first locking member 134 is inserted into the first locking hole 135, so that the first lower bracket unit 131 and the second lower bracket unit 132 can be locked, thereby preventing the relative rotation of the first lower bracket unit 131 and the second lower bracket unit 132, and improving the stability and safety of the product.

[0055] In this embodiment, the first limiting member 133 is provided with an unlocking button 136, and the pressing end of the unlocking button 136 is arranged toward the first locking hole 135. Under the driving of external force, the pressing end of the unlocking button 136 moves toward the first locking hole 135 to drive the locking end of the first locking member 134 to be detached from the first locking hole 135. With the arrangement of the above structure, when folding the product, the pressing end of the unlocking button 136 is pressed to make the pressing end of the unlocking button 136 abut against the locking end of the first locking member 134, driving the locking end of the first locking member 134 to be detached from the first locking hole 135, releasing the locked state, and at the same time moving the middle part of the lower bracket assembly 130 upward, so that the product can be folded, and the operation is convenient.

[0056] In this embodiment, a second stopper 145 is provided at the second end of the second support frame unit 142, and when the frame 100 is in the unfolded state, the second stopper 145 abuts against the first support frame unit 141. With the arrangement of the above structure, when in use, when the frame 100 is in the unfolded state, the first support frame unit 141 and the second support frame unit 142 are flush and in the same plane, and at this time, the second stopper 145 abuts against the first support frame unit 141, which can prevent the first support frame unit 141 and the second support frame unit 142 from further rotating downward relative to each other, and limit the relative positions of the two, so that the product is stably fixed in the unfolded state, which is convenient for users to use, and the product structure is stable and safe to use.

[0057] In this embodiment, the frame 100 further includes a fixing member 150, wherein a first end of the fixing member 150 is connected to the rear support assembly 120, and a second end of the fixing member 150 is detachably connected to the front support assembly 110. When the frame 100 is in a folded state, the second end of the fixing member 150 is connected to the front support assembly 110, and when the frame 100 is in an unfolded state, the second end of the fixing member 150 is detached from the front support assembly 110. Through the above-mentioned structure, when in use, the frame 100 is adjusted to the folded state, at which time the distance between the front support assembly 110 and the rear support assembly 120 becomes smaller, and the second end of the fixing member 150 is connected to the front support assembly 110, which can hinder the movement of the front support assembly 110 and the rear support assembly 120 away from each other, thereby hindering the frame 100 from being transformed into an unfolded state, thereby improving the stability when storing and transporting products, and facilitating users to store and transport products; and the second end of the fixing member 150 is detached from the front support assembly 110, which can allow the frame 100 to be transformed into an unfolded state.

[0058] In this embodiment, the frame 100 also includes a push rod assembly 161 and a locking member 162. The push rod assembly 161 is rotatably connected to the rear bracket assembly 120, and the locking member 162 is connected to the push rod assembly 161 and the rear bracket assembly 120. The locking member 162 is used to allow or hinder the relative rotation between the push rod assembly 161 and the rear bracket assembly 120. Through the arrangement of the above structure, when in use, the push rod assembly 161 is rotated to make the gripping end of the push rod assembly 161 away from the rear bracket assembly 120, and the locking piece 162 is moved to fix the push rod assembly 161, so that the user can grasp the gripping end of the push rod assembly 161 conveniently, and the user can push and pull the product conveniently. In addition, the user can rotate the push rod assembly 161 as needed, adjust the angle between the push rod assembly 161 and the rear bracket assembly 120, and then adjust the height of the gripping end of the push rod assembly 161, thereby improving the comfort of the product, providing different users with a suitable gripping height, and making it more convenient to use. When the push rod assembly 161 is rotated until the push rod assembly 161 is attached to the rear bracket assembly 120, the push rod assembly 161 can be effectively stored, thereby reducing the length of the product and facilitating transportation and storage of the product.

[0059] In this embodiment, the wheel 200 includes a movable caster 210 and a fixed caster 220, wherein the movable caster 210 is connected to the bottom of the front bracket assembly 110, and the fixed caster 220 is connected to the bottom of the rear bracket assembly 120. Through the above-mentioned structure, when in use, the movable caster 210 and the fixed caster 220 cooperate to facilitate the user to push the frame 100, making the product movement more convenient; and the movable caster 210 can rotate around a vertical axis, allowing the movable caster 210 to change direction, thereby facilitating the user to change the moving direction of the cart, and the operation is simple.

[0060] In this embodiment, the frame 100 further includes a second locking assembly 170, which moves between a locking position and an unlocking position. A plurality of second locking holes 221 are provided along the edge of the rotating shaft on the inner side of the fixed caster 220. When the second locking assembly 170 moves to the locking position, the locking rod 171 of the second locking assembly 170 is inserted into the second locking hole 221. When the second locking assembly 170 moves to the unlocking position, the locking rod 171 of the second locking assembly 170 is detached from the second locking hole 221. Through the above-mentioned structure, when the second locking assembly 170 moves to the locking position, the locking rod 171 is inserted into the second locking hole 221, and the locking rod 171 prevents the fixed caster 220 from rotating, thereby preventing the cart from moving, so that the cart can be stably parked in place, and the use is safer; when the second locking assembly 170 moves to the unlocking position, the locking rod 171 is detached from the locking groove 221, and the fixed caster 220 can rotate freely, which is convenient for users to push, pull, and move the cart, and the moving product is convenient and labor-saving.

[0061] In this embodiment, the second locking assembly 170 further includes a driving pedal 172 and a driving rod 173. The driving pedal 172 is connected to the driving rod 173. The end of the driving rod 173 is provided with a driving inclined surface 174. The driving pedal 172 and the driving rod 173 rotate around the rotation axis of the driving rod 173 under the action of external force. The first end of the locking rod 171 abuts against the driving inclined surface 174 and slides along the surface of the driving inclined surface 174, so that the locking rod 171 can be extended and retracted, inserted or detached from the second locking hole 221. With the above-mentioned structure, when in use, the driving pedal 172 is stepped on, and the driving pedal 172 drives the driving rod 173 and the driving inclined surface 174 to rotate. The driving inclined surface 174 drives the locking rod 171 to translate along the axial direction, and then is inserted into the second locking hole 221, thereby preventing the fixed caster 220 from rotating, so that the cart can be stably stopped in place, and it is safer to use.

[0062] In this embodiment, the second locking assembly 170 further includes a return spring 175, one end of which is connected to the connection portion at the bottom of the frame 100, and the other end of which is connected to the locking rod 171. The elastic force of the return spring 175 causes the locking rod 171 to have a movement tendency away from the second locking hole 221. With the above-mentioned structure, when the second locking assembly 170 is moved to the unlocking position, the locking rod 171 is detached from the second locking hole 221 under the elastic force of the return spring 175, so as to allow the fixed caster 220 to rotate freely, so that the user can move the cart conveniently, and the product is easy to use.

[0063] In this embodiment, the upper surface of the driving pedal 172 is provided with friction lines 176. Through the above-mentioned structure, the friction lines 176 can increase the friction coefficient of the upper surface of the driving pedal 172, and when the user steps on the driving pedal 172, the friction between the user's sole and the upper surface of the driving pedal 172 is increased, so that the user can step down the driving pedal 172 more easily, and the operation is simple.

[0064] In this embodiment, a downwardly recessed foot accommodation space is formed between the first rotating rod unit 143, the second rotating rod unit 144, part of the first lower bracket unit 131, part of the second lower bracket unit 132, part of the first support frame unit 141, and part of the second support frame unit 142. With the above-mentioned structure, when in use, infants can sit in the stroller, and their feet can be placed in the downwardly recessed foot accommodation space, so that infants can sit in the product more comfortably, improving the user experience.

[0065] In this embodiment, a cover body 300 is also included. The upper ends of the front support assembly 110 and the upper ends of the rear support assembly 120 are both provided with a first connecting member 101. The upper end of the cover body 300 is connected to the first connecting member 101, and the lower end of the cover body 300 is connected to the lower end of the front support assembly 110 and the lower end of the rear support assembly 120 or the lower support assembly 130. Through the arrangement of the above structure, when in use, the upper end of the cover body 300 is connected to the first connecting member 101, and the lower end of the cover body 300 is connected to the lower end of the front support assembly 110 and the lower end of the rear support assembly 120 or the lower support assembly 130, so that the cover body 300 can be stably connected to the frame 100, and the inner wall of the cover body 300 forms a receiving space, which is convenient for users to sit or lie in the receiving space, and improves the comfort and safety of the product.

[0066] In this embodiment, a connecting belt 310 is provided at the upper end of the cover body 300, and the first connecting member 101 is provided with a through hole 102, and the free end of the connecting belt 310 passes through the through hole 102 and is connected to the surface of the cover body 300. With the above-mentioned structure, when in use, the free end of the connecting belt 310 passes through the through hole 102 and is connected to the surface of the cover body 300, so that the connection between the cover body 300 and the first connecting member 101 can be achieved, and the product structure is stable and the connection is convenient; preferably, the free end of the connecting belt 310 is connected to the surface of the cover body 300 by Velcro or buttons, and the connection is convenient and stable.

[0067] In this embodiment, a sunshade assembly 400 is also included, and the sunshade assembly 400 includes a second connecting member 410, a plurality of sunshade brackets 420 and a sunshade body 430. The second connecting member 410 is detachably connected to the first connecting member 101, so that the sunshade assembly 400 is connected to or detached from the frame 100. Through the arrangement of the above structure, when in use, the sunshade assembly 400 can be installed or removed by connecting or detaching the second connecting member 410 from the first connecting member 101, so that the user can choose whether to use the sunshade assembly 400, and the user is more convenient to use; and the sunshade bracket 420 can stably support the sunshade body 430 to shield the user from sunlight, and the user has a better experience.

[0068] In this embodiment, one of the first connector 101 and the second connector 410 is provided with an insertion block 103, and the other of the first connector 101 and the second connector 410 is provided with an insertion slot, and the insertion block 103 is inserted into the insertion slot. With the above-mentioned structure, when in use, the insertion block 103 is inserted into the insertion slot, which is convenient for the user to connect the first connector 101 with the second connector 410, and the installation is convenient.

[0069] In this embodiment, the second connecting member 410 is provided with a first rotating portion 411 and a second rotating portion 412, the first rotating portion 411 is rotatably connected to the second rotating portion 412, one sunshade bracket 420 is connected to the first rotating portion 411, and another sunshade bracket 420 is connected to the second rotating portion 412. With the above-mentioned structure, when in use, by rotating the second rotating portion 412, the sunshade brackets 420 can be brought closer to or separated from each other to unfold or fold the sunshade cover 430, so that the user can conveniently adjust the sunshade area of ​​the sunshade cover 430, and the user experience is better.

[0070] In this embodiment, the frame 100 further includes a traction assembly 180, which is rotatably connected to the front bracket assembly 110, and the traction assembly 180 is used to allow the user to tug the product. Through the above-mentioned structure, when in use, the user can pull the traction assembly 180 to move the product. The user can choose to push the product or pull the product, which gives the user more usage options.

[0071] In this embodiment, the traction assembly 180 includes a traction rod 181, a connecting rod 182 and a connecting shell 183. The traction rod 181 is slidably connected to the connecting shell 183. One end of the connecting rod 182 is rotatably connected to the lower part of the front bracket assembly 110, and the other end of the connecting rod 182 is linked to the connecting shell 183. The traction rod 181 is provided with a plurality of third locking positions, and the connecting shell is provided with a third locking member, and the third locking member is connected to any of the third locking positions. Through the above-mentioned structural setting, when the traction assembly 180 is used, the third locking member is connected to any of the third locking positions to adjust the extended length of the traction rod 181, which is convenient for users to grasp and pull the product; and when the traction assembly 180 is stored, the third locking member can be connected to the uppermost third locking position to shorten the extended length of the traction rod 181, which is convenient for storing the product.

[0072] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of the utility model is not limited to these descriptions. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or a number of technical deductions or replacements based on the concept of the utility model, shall be regarded as the protection scope of the utility model.

Claims

1. A foldable cart, comprising a frame (100) and wheels (200) mounted on the bottom of the frame (100), characterized in that: The frame (100) has a folded state and an unfolded state, and the frame (100) comprises: A front bracket assembly (110), wherein a front connecting rod unit (111) is provided at the lower end of the front bracket assembly (110); A rear support assembly (120), the rear support assembly (120) being arranged front-to-rear with the front support assembly (110), and a rear connecting rod unit (121) being provided at the lower end of the rear support assembly (120); A lower bracket assembly (130), the lower bracket assembly (130) comprising a first lower bracket unit (131) and a second lower bracket unit (132), the first end of the first lower bracket unit (131) being rotatably connected to the lower end of the front bracket assembly (110), the first end of the second lower bracket unit (132) being rotatably connected to the lower end of the rear bracket assembly (120), and the second end of the first lower bracket unit (131) being rotatably connected to the second end of the second lower bracket unit (132); A support frame assembly (140), the support frame assembly (140) comprising a first support frame unit (141), a second support frame unit (142), a first rotating rod unit (143) and a second rotating rod unit (144), wherein the first end of the first support frame unit (141) is rotatably connected to the lower end of the front connecting rod unit (111), the first end of the second support frame unit (142) is rotatably connected to the lower end of the rear connecting rod unit (121), the second end of the first support frame unit (141) is rotatably connected to the second end of the second support frame unit (142), the two ends of the first rotating rod unit (143) are rotatably connected to the first lower bracket unit (131) and the first support frame unit (141), respectively, and the two ends of the second rotating rod unit (144) are rotatably connected to the second lower bracket unit (132) and the second support frame unit (142), respectively.

2. The foldable stroller according to claim 1, characterized in that: The first lower bracket unit (131) comprises a first limiting member (133) arranged at a second end, and the second end of the second lower bracket unit (132) is rotatably connected to the first limiting member (133), and when the frame (100) is in an unfolded state, the first limiting member (133) abuts against the second lower bracket unit (132).

3. The foldable stroller according to claim 2, characterized in that: A first locking piece (134) is provided in the second end of the second lower bracket unit (132); the locking end of the first locking piece (134) passes through the second end side wall of the second lower bracket unit (132); the first limiting piece (133) is provided with a first locking hole (135); when the frame (100) is in an unfolded state, the locking end of the first locking piece (134) is inserted into the first locking hole (135).

4. The foldable stroller according to claim 3, characterized in that: An unlocking button (136) is provided on the first limiting member (133), and a pressing end of the unlocking button (136) is arranged toward the first locking hole (135). Under the drive of an external force, the pressing end of the unlocking button (136) moves toward the first locking hole (135) to drive the locking end of the first locking member (134) to be detached from the first locking hole (135).

5. The foldable stroller according to claim 1, characterized in that: A second stopper (145) is provided at the second end of the second support frame unit (142); when the frame (100) is in an unfolded state, the second stopper (145) abuts against the first support frame unit (141).

6. The foldable stroller according to claim 1, characterized in that: The frame (100) further comprises a fixing member (150), wherein a first end of the fixing member (150) is connected to the rear support assembly (120), and a second end of the fixing member (150) is detachably connected to the front support assembly (110); when the frame (100) is in a folded state, the second end of the fixing member (150) is connected to the front support assembly (110); and when the frame (100) is in an unfolded state, the second end of the fixing member (150) is detached from the front support assembly (110).

7. The foldable stroller according to claim 1, characterized in that: The frame (100) further comprises a push rod assembly (161) and a locking member (162), wherein the push rod assembly (161) is rotatably connected to the rear support assembly (120), and the locking member (162) is connected to the push rod assembly (161) and the rear support assembly (120), and the locking member (162) is used to allow or hinder relative rotation between the push rod assembly (161) and the rear support assembly (120).

8. The foldable stroller according to claim 1, characterized in that: The wheel (200) comprises a movable caster (210) and a fixed caster (220), wherein the movable caster (210) is connected to the bottom of the front bracket assembly (110), and the fixed caster (220) is connected to the bottom of the rear bracket assembly (120); the frame (100) further comprises a second locking assembly (170), wherein the second locking assembly (170) moves between a locking position and an unlocking position, and a plurality of second locking holes (221) are arranged along the edge of the rotating shaft on the inner side of the fixed caster (220); when the second locking assembly (170) moves to the locking position, the locking rod (171) of the second locking assembly (170) is inserted into the second locking hole (221), and when the second locking assembly (170) moves to the unlocking position, the locking rod (171) of the second locking assembly (170) is detached from the second locking hole (221).

9. The foldable stroller according to claim 8, characterized in that: The second locking assembly (170) further comprises a driving pedal (172) and a driving rod (173), wherein the driving pedal (172) is connected to the driving rod (173), and a driving inclined surface (174) is provided at the end of the driving rod (173). The driving pedal (172) and the driving rod (173) rotate around the rotation axis of the driving rod (173) under the action of an external force, and the first end of the locking rod (171) abuts against the driving inclined surface (174) and slides along the surface of the driving inclined surface (174), so that the locking rod (171) can be extended and retracted, and inserted into or detached from the second locking hole (221).

10. The foldable stroller according to claim 9, characterized in that: The second locking assembly (170) further comprises a return spring (175), one end of the return spring (175) being connected to a connecting portion at the bottom of the frame (100), and the other end of the return spring (175) being connected to the locking rod (171), and the elastic force of the return spring (175) causes the locking rod (171) to have a movement tendency away from the second locking hole (221).

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