Folding cart

Abstract

The utility model discloses a folding cart which comprises a frame and wheels installed at the bottom of the frame, the frame has a folded state and an unfolded state, the frame comprises a first support assembly, a second support assembly, a connecting support assembly and a supporting assembly, and the second support assembly and the first support assembly are oppositely arranged front and back; the two ends of the connecting support assembly are connected to the first support assembly and the second support assembly respectively. The connecting end of the supporting assembly is rotatably connected to the connecting support assembly, and the sliding end of the supporting assembly is slidably connected to the connecting support assembly. When the frame is converted between the folding state and the unfolding state, the connecting end of the supporting assembly rotates relative to the connecting support assembly, the sliding end of the supporting assembly slides along the connecting support assembly, and the connecting support assembly rotates relative to the first support assembly and the second support assembly.

Description

Technical Field

[0001] This utility model relates to the field of infant and toddler product technology, and in particular to a folding stroller. Background Technology

[0002] With social development and the improvement of people's living standards, outdoor recreation has become a popular form of exercise and leisure, attracting increasing attention from families. Parents and guardians prefer to spend their free time playing outdoors with their infants and toddlers. Strollers, as children's products suitable for outdoor play, not only allow infants and toddlers to sit or lie down inside, making it convenient to take children around, but also provide storage for outdoor supplies, making them a convenient and effortless means of transportation.

[0003] In existing technologies, trolleys have many rods, complex folding components, and cumbersome folding operations. Furthermore, they can easily pinch users' fingers during the folding process. In addition, such folding trolleys are still quite large when folded, making them inconvenient to carry, and they are not stable in the folded state and are prone to deformation.

[0004] Therefore, this utility model provides a folding trolley that can effectively solve the above problems. It has a simple structure, small product size after folding, and is stable. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides a folding trolley with a simple structure, small product size after folding, and stability.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A folding trolley includes a frame and wheels mounted on the bottom of the frame, the frame having a folded state and an unfolded state, the frame comprising:

[0008] First support assembly;

[0009] The second support assembly is arranged opposite to the first support assembly.

[0010] A connecting bracket assembly, the two ends of which are respectively connected to the first bracket assembly and the second bracket assembly;

[0011] A support component, wherein the connecting end of the support component is rotatably connected to the connecting bracket assembly, and the sliding end of the support component is slidably connected to the connecting bracket assembly;

[0012] When the frame changes between a folded state and an unfolded state, the connecting end of the support component rotates relative to the connecting bracket assembly, the sliding end of the support component slides along the connecting bracket assembly, and the connecting bracket assembly rotates relative to the first bracket assembly and the second bracket assembly.

[0013] As an improvement of this utility model, a locking component is also included. The locking component is disposed at the sliding end of the support component. The locking component moves between a locked position and an unlocked position. The connecting bracket component is provided with a locking hole. When the frame is in the unfolded state, the locking component moves to the locked position, at which time the locking component is inserted into the locking hole.

[0014] As an improvement of this utility model, the locking component includes a locking block and an elastic element. The sliding end of the support component is provided with a locking block groove. The locking block is slidably disposed in the locking block groove. The elastic element is disposed in the locking block groove and abuts against the locking block. The elastic element drives the locking block to move toward the locking position.

[0015] As an improvement of this utility model, the locking assembly further includes a driving member and a transmission rope. The driving member is disposed on the side of the connecting bracket assembly near the connecting end of the support assembly. One end of the transmission rope is connected to the driving member, and the other end of the transmission rope extends along a portion of the interior of the support assembly to the sliding end of the support assembly and is connected to the locking block.

[0016] As an improvement of this utility model, the connecting bracket assembly includes an upper connecting bracket assembly and a lower connecting bracket assembly. The two ends of the upper connecting bracket assembly are respectively connected to the upper ends of the first bracket assembly and the upper ends of the second bracket assembly, and the two ends of the lower connecting bracket assembly are respectively connected to the lower ends of the first bracket assembly and the lower ends of the second bracket assembly.

[0017] As an improvement of this utility model, the upper connecting bracket assembly includes a first rod, a second rod, and a third rod. The first end of the first rod is rotatably connected to the upper end of the first bracket assembly, the first end of the third rod is rotatably connected to the upper end of the second bracket assembly, and the two ends of the second rod are rotatably connected to the second ends of the first rod and the second ends of the third rod, respectively.

[0018] As an improvement of this utility model, the lower connecting bracket assembly includes a fourth rod, a fifth rod, and a sixth rod. The first end of the fourth rod is rotatably connected to the lower end of the first bracket assembly, the first end of the sixth rod is rotatably connected to the lower end of the second bracket assembly, and the two ends of the fifth rod are rotatably connected to the second ends of the fourth rod and the second ends of the sixth rod, respectively.

[0019] As an improvement of this utility model, the middle part of the second rod extends downward to form a connecting rod, the driving member is T-shaped and has a sliding channel, and the connecting rod is inserted into the sliding channel so that the driving member can slide along the connecting rod.

[0020] As an improvement of this utility model, the support assembly includes two first support assemblies, the connecting ends of the two first support assemblies are rotatably connected to the connecting rod, and the sliding ends of the two first support assemblies are slidably connected to the fourth rod and the sixth rod, respectively.

[0021] As an improvement of this utility model, the support assembly further includes a second support assembly, the first ends of the two second support assemblies being rotatably connected to the middle of the two first support assemblies, and the second ends of the two second support assemblies being rotatably connected to the fourth rod and the sixth rod, respectively.

[0022] As an improvement to this utility model, it also includes a fixing member, the first end of which is connected to the first bracket assembly, and the second end of which is detachably connected to the second bracket assembly. When the frame is in a folded state, the second end of the fixing member is connected to the second bracket assembly, and when the frame is in an unfolded state, the second end of the fixing member is detached from the second bracket assembly.

[0023] As an improvement to this utility model, it also includes a push rod assembly and a locking member. The push rod assembly is rotatably connected to the first bracket assembly, and the locking member is connected to the push rod assembly and the first bracket assembly. The locking member is used to allow or prevent relative rotation between the push rod assembly and the first bracket assembly.

[0024] As an improvement of this utility model, the wheel includes a movable caster and a fixed caster, the movable caster being connected to the bottom of the second bracket assembly, and the fixed caster being connected to the bottom of the first bracket assembly.

[0025] As an improvement of this utility model, it also includes several clamping members, each clamping member having an opening facing downwards, the clamping member clamping the upper connecting bracket assembly, the clamping member being used to clamp and fix the bushing to the upper connecting bracket assembly.

[0026] As an improvement to this utility model, it also includes several support members, which are connected to the upper part of the first support assembly and / or the upper part of the second support assembly, and are used to support the cover.

[0027] As an improvement of this utility model, it also includes a support member, which is connected to the middle of the first support assembly and extends in a direction away from the first support assembly. The support member is used to support and accommodate the bushing.

[0028] As an improvement of this utility model, the frame further includes a second locking component, which moves between a locked position and an unlocked position. The inner side of the fixed caster is provided with a plurality of second locking holes along the edge of the pivot. When the second locking component moves to the locked position, the locking rod of the second locking component is inserted into the second locking hole. When the second locking component moves to the unlocked position, the locking rod of the second locking component is disengaged from the second locking hole.

[0029] As an improvement of this utility model, the second locking assembly further includes a drive pedal and a drive rod. The drive pedal is connected to the drive rod, and the end of the drive rod is provided with a drive ramp. The drive pedal and the drive rod rotate around the rotation axis of the drive rod under the action of an external force. The first end of the locking rod abuts against the drive ramp and slides along the surface of the drive ramp, so that the locking rod can extend and retract, and be inserted into or removed from the second locking hole.

[0030] As an improvement of this utility model, the second locking component further 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 tendency to move away from the second locking hole.

[0031] As an improvement of this utility model, the upper surface of the drive pedal is provided with friction texture.

[0032] The beneficial effects of this utility model are as follows: When storing the product, the first support assembly and the second support assembly are close to each other, the connecting end of the support assembly rotates relative to the connecting support assembly, and the sliding end of the support assembly slides upward along the first support assembly and the second support assembly until the frame is in the folded position. At this time, the frame occupies a small area, which facilitates storage and transportation. When using the product, the first support assembly and the second support assembly are far apart from each other, the connecting end of the support assembly rotates relative to the connecting support assembly, and the sliding end of the support assembly slides downward along the first support assembly and the second support assembly until the frame is in the unfolded position. At this time, a rectangular-shaped accommodating space is formed between the first support assembly, the second support assembly, and the connecting support assembly, while the support assembly is simultaneously connected to the first support assembly, the second support assembly, and the connecting support assembly, making the product structure more stable and improving the product strength. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is a schematic diagram of the usage state of this utility model;

[0036] Figure 2 This is a schematic diagram of the structure of this utility model in its unfolded state;

[0037] Figure 3 This is a cross-sectional view of the present invention in its unfolded state;

[0038] Figure 4 yes Figure 3 Enlarged view of circle A;

[0039] Figure 5 yes Figure 3 Enlarged view of circle B;

[0040] Figure 6 This is a schematic diagram of the structure of this utility model in its folded state;

[0041] Figure 7 This is a cross-sectional view of the present invention in its folded state;

[0042] Figure 8 yes Figure 7 Enlarged view of circle C;

[0043] Figure 9 yes Figure 7 Enlarged view of circle D;

[0044] Figure 10 This is a structural diagram of the present invention when it is in a folded state and an unfolded state;

[0045] Figure 11 This is a cross-sectional view of the second locking component of this utility model in the unlocked position;

[0046] Figure 12 This is a cross-sectional view of the second locking component of this utility model in the locked position;

[0047] Figure 13 This is a partial exploded view of the second locking component of this utility model at one angle;

[0048] Figure 14 This is a partial exploded structural diagram of the second locking component of this utility model from another angle. Detailed Implementation

[0049] Reference Figures 1 to 14This embodiment discloses a folding trolley, including a frame 100 and wheels 200 mounted on the bottom of the frame 100. The frame has a folded state and an unfolded state, and the frame 100 includes:

[0050] First support assembly 110;

[0051] The second support assembly 120 is arranged opposite to the first support assembly 110.

[0052] A connecting bracket assembly 130 is provided, with its two ends connected to the first bracket assembly 110 and the second bracket assembly 120, respectively.

[0053] A support component 140, wherein the connecting end of the support component 140 is rotatably connected to the connecting bracket assembly 130, and the sliding end of the support component 140 is slidably connected to the connecting bracket assembly 130;

[0054] When the frame 100 changes between a folded state and an unfolded state, the connecting end of the support component 140 rotates relative to the connecting bracket assembly 130, the sliding end of the support component 140 slides along the connecting bracket assembly 130, and the connecting bracket assembly 130 rotates relative to the first bracket assembly 110 and the second bracket assembly 120.

[0055] With the above-described structure, the sliding end of the support component 140 is slidably connected to the connecting bracket assembly 130. When the frame 100 is changed from a folded state to an unfolded state, the first bracket assembly 110 and the second bracket assembly 120 are pulled outward, causing the first bracket assembly 110 to move away from the second bracket assembly 120. The connecting end of the support component 140 rotates relative to the connecting bracket assembly 130, and the sliding end of the support component 140 slides along the connecting bracket assembly 130 from the middle to the end until the frame 100 is in the unfolded position. At this time, a cuboid-shaped accommodating space is formed between the first bracket assembly 110, the second bracket assembly 120, and the connecting bracket assembly 130. The support component 140 can effectively limit the shape of the connecting bracket assembly 130, thereby limiting the distance between the first bracket assembly 110 and the second bracket assembly 120, making the frame structure stable and improving product strength. Furthermore, the sliding end of the support component 140 slides more smoothly along the connecting bracket assembly 130, making it easier for users to fold or unfold the product.

[0056] In this embodiment, a locking component 150 is also included. The locking component 150 is disposed on the sliding end of the support component 140. The locking component 150 moves between a locked position and an unlocked position. The connecting bracket component 130 is provided with a locking hole 103. When the frame 100 is in the unfolded state, the locking component 150 moves to the locked position, at which time the locking component 150 is inserted into the locking hole 103. With the above structure, the locking hole 101 is opened on the connecting bracket component 130. When the user unfolds the frame 100, the locking component 150 is inserted into the locking hole 101, which can effectively prevent the sliding end of the support component 140 from sliding horizontally along the connecting bracket component 130. This limits the shape of the connecting bracket component 130 and the distance between the first bracket component 110 and the second bracket component 120, making the product structure stable, preventing the frame 100 from changing its state when using or storing the product, ensuring the stability of the product, and improving the user experience.

[0057] In this embodiment, the locking component 150 includes a locking block 151 and an elastic member 152. The sliding end of the support component 140 is provided with a locking block groove 1401. The locking block 151 is slidably disposed in the locking block groove 1401. The elastic member 152 is disposed in the locking block groove 1401 and abuts against the locking block 151. The elastic member 152 drives the locking block 151 to move toward the locking position. With the above-described structure, the elastic potential energy of the elastic element 152 can drive the locking block 151, giving the locking block 151 a tendency to move toward the locking position. When the frame 100 is in the unfolded position, the locking block 151 is directly opposite the locking hole 101. Under the action of the elastic element 152, the locking block 151 is inserted into the locking hole 101 to fix the sliding end of the support assembly 140 to the first bracket assembly 110 and / or the second bracket assembly 120, thereby improving the stability of the product and ensuring its safe use. When the frame 100 is out of the unfolded position, the locking block 151 is disengaged from the locking hole 101. The locking block 151 abuts against and slides along the outer surface of the first bracket assembly 110 and / or the second bracket assembly 120, allowing the frame 100 to be transformed into a folded state for easy storage and transportation.

[0058] In this embodiment, the locking assembly 150 further includes a driving member 153 and a transmission rope 154. The driving member 153 is disposed on the side of the connecting bracket assembly 130 near the connecting end of the support assembly 140. One end of the transmission rope 154 is connected to the driving member 153, and the other end of the transmission rope 154 extends along a portion of the interior of the support assembly 140 to the sliding end of the support assembly 140 and is connected to the locking block 151. With the above structure, during use, the user can move the driving member 153 to drive the transmission rope 154, thereby driving the locking block 151, causing the locking block 151 to move towards the unlocking position, disengaging from the lock hole 101, and realizing the unlocking action. This allows the frame 100 to change from the unfolded state to the folded state, which is convenient for user operation. In this embodiment, the user can use their palm to grasp the middle of the upper support assembly 140 and use their fingers to hook and move the driving member 153, which can realize one-handed unlocking, making it convenient for the user to fold and store the product.

[0059] In this embodiment, the connecting bracket assembly 130 includes an upper connecting bracket assembly 131 and a lower connecting bracket assembly 132. The two ends of the upper connecting bracket assembly 131 are respectively connected to the upper end of the first bracket assembly 110 and the upper end of the second bracket assembly 120. The two ends of the lower connecting bracket assembly 132 are respectively connected to the lower end of the first bracket assembly 110 and the lower end of the second bracket assembly 120. With the above-described structure, the upper connecting bracket assembly 131 and the lower connecting bracket assembly 132, together with the first bracket assembly 110 and the second bracket assembly 120, form the main body of the frame 100. The first bracket assembly 110, the second bracket assembly 120, the upper connecting bracket assembly 131, and the lower connecting bracket assembly 132 form a rectangular prism-like accommodating space, which allows infants and young children to sit or lie in the accommodating space. Furthermore, the upper connecting bracket assembly 131 is connected to the upper end of the first bracket assembly 110 and the upper end of the second bracket assembly 120, and the lower connecting bracket assembly 132 is connected to the lower end of the first bracket assembly 110 and the lower end of the second bracket assembly 120, so that the first bracket assembly 110 and the second bracket assembly 120 are subjected to uniform force from top to bottom, resulting in strong product stability.

[0060] In this embodiment, the upper connecting bracket assembly 131 includes a first rod 131a, a second rod 131b, and a third rod 131c. The first end of the first rod 131a is rotatably connected to the upper end of the first bracket assembly 110, the first end of the third rod 131c is rotatably connected to the upper end of the second bracket assembly 120, and the two ends of the second rod 131b are rotatably connected to the second ends of the first rod 131a and the second ends of the third rod 131c, respectively. With the above-described structure, the first rod 131a, the second rod 131b, and the third rod 131c are rotatably connected in sequence. When the frame 100 is in the unfolded position, the first rod 131a, the second rod 131b, and the third rod 131c are on the same straight line, forming a stable, straight upper connecting bracket assembly 131, which effectively connects the upper end of the first bracket assembly 110 and the upper end of the second bracket assembly 120. When the frame 100 is transformed into the folded state, the second rod 131b moves upward, and the first rod 131a and the third rod 131c rotate relative to the second rod 131b. The first rod 131a, the second rod 131b, and the third rod 131c form a structure similar to an isosceles trapezoid, which allows the first bracket assembly 110 and the second bracket assembly 120 to move closer to each other. The frame 100 occupies a small area, making it convenient for storage and transportation.

[0061] In this embodiment, the lower connecting bracket assembly 132 includes a fourth rod 132a, a fifth rod 132b, and a sixth rod 132c. The first end of the fourth rod 132a is rotatably connected to the lower end of the first bracket assembly 110, the first end of the sixth rod 132c is rotatably connected to the lower end of the second bracket assembly 120, and the two ends of the fifth rod 132b are rotatably connected to the second ends of the fourth rod 132a and the sixth rod 132c, respectively. With the above-described structure, the fourth rod 132a, the fifth rod 132b, and the sixth rod 132c are rotatably connected in sequence. When the frame 100 is in the unfolded position, the fourth rod 132a, the fifth rod 132b, and the sixth rod 132c are on the same straight line, forming a stable, straight lower connecting support assembly 132, which effectively connects the lower end of the first support assembly 110 and the lower end of the second support assembly 120. When the frame 100 is folded, the fifth rod 132b moves upward, and the fourth rod 132a and the sixth rod 132c rotate relative to the fifth rod 132b. The fourth rod 132a, the fifth rod 132b, and the sixth rod 132c form a structure similar to an isosceles trapezoid, which allows the first support assembly 110 and the second support assembly 120 to move closer to each other. The frame 100 occupies a small area, making it convenient for storage and transportation.

[0062] In this embodiment, the second rod 131b extends downward from the middle to form a connecting rod 131d. The driving member 153 is T-shaped and has a sliding channel 1531. The connecting rod 131d is inserted into the sliding channel 1531 so that the driving member 153 can slide along the connecting rod 131d. With the above structure, in use, the connecting rod 131d is inserted into the sliding channel 1531, and the user's palm can hold or abut against the upper part of the second rod 131b. The user's fingers hook the upper part of the T-shaped driving member 153, which can slide the driving member 153 upward, making it convenient for the user to unlock. When the frame 100 is in the unfolded position, when the user releases the driving member 153, the elastic element 152 drives the locking block 151 to reset and insert into the locking hole 101. Then, the transmission rope 154 drives the driving member 153 to reset. The sliding channel 1531 cooperates with the connecting rod 131d, so that the driving member 153 can be reset to the initial position more stably.

[0063] In this embodiment, the support assembly 140 includes two first support assemblies 141. The connecting ends of the two first support assemblies 141 are rotatably connected to the connecting rod 131d, and the sliding ends of the two first support assemblies 141 are slidably connected to the fourth rod 132a and the sixth rod 132c, respectively. The main difference between this embodiment and Embodiment 1 is that in this embodiment, the sliding ends of the two first support assemblies 141 are slidably connected to the fourth rod 132a and the sixth rod 132c, respectively, instead of being slidably connected to the first bracket assembly 110 and the second bracket assembly 120. The sliding ends of the first support assemblies 141 slide along the fourth rod 132a and the sixth rod 132c, making the connection simpler. Furthermore, the angle between the first support assembly 141 and the fourth rod 132a or the sixth rod 132c is smaller, making sliding easier and facilitating the user to change the state of the frame 100, thus simplifying its use. Preferably, the lower part of the first support component 141 is curved, so that there is a gap between the lower part of the first support component 141 and the second support component 142 and the fourth rod 132a or the sixth rod 132c, so that the user's hand can pass through the gap and pull the lower part of the curved first support component 141 outward, making it convenient for the user to change the frame 100 from the folded state to the unfolded state, making it more convenient for the user to use and the product appearance is more beautiful.

[0064] In this embodiment, the support component 140 further includes a second support component 142. The first ends of the two second support components 142 are rotatably connected to the middle of the two first support components 141, and the second ends of the two second support components 142 are rotatably connected to the fourth rod 132a and the sixth rod 132c, respectively. With the above structure, the first ends of the second support components 142 are connected to the middle of the first support components 141, and the second ends are connected to the fourth rod 132a and the sixth rod 132c. This provides support for the first support components 141 and the lower connecting bracket assembly 132, further improving the product's stability and making it more robust and durable. Simultaneously, the upper connecting bracket assembly 131 and the lower connecting bracket assembly 132 can deform synchronously when the frame 100 is folded. The user only needs to pull the drive component 153 upwards to move the second rod 131b upwards, and the fifth rod 132b will also move upwards accordingly. This facilitates user operation, makes folding the frame 100 more convenient, and makes product deformation simpler and smoother.

[0065] In this embodiment, a fixing member 160 is also included. The first end of the fixing member 160 is connected to the first support assembly 110, and the second end of the fixing member 160 is detachably connected to the second support assembly 120. When the frame 100 is in a folded state, the second end of the fixing member 160 is connected to the second support assembly 120. When the frame 100 is in an unfolded state, the second end of the fixing member 160 is detached from the second support assembly 120. With this structure, when the frame 100 is adjusted to a folded state, the distance between the first support assembly 110 and the second support assembly 120 decreases. Connecting the second end of the fixing member 160 to the second support assembly 120 prevents the first support assembly 110 and the second support assembly 120 from moving away from each other, thus preventing the frame 100 from changing to an unfolded state. This improves the stability when storing and transporting products, making it convenient for users to store and transport products. Detachment of the second end of the fixing member 160 from the second support assembly 120 allows the frame 100 to change to an unfolded state.

[0066] In this embodiment, a push rod assembly 171 and a locking member 172 are also included. The push rod assembly 171 is rotatably connected to the first bracket assembly 110, and the locking member 172 is connected to the push rod assembly 171 and the first bracket assembly 110. The locking member 172 is used to allow or prevent relative rotation between the push rod assembly 171 and the first bracket assembly 110. With the above-described structure, during use, rotating the push rod assembly 171 moves the gripping end of the push rod assembly 171 away from the first bracket assembly 110, and moving the locking piece 172 fixes the push rod assembly 171. This allows the user to easily grip the gripping end of the push rod assembly 171, facilitating the pushing and pulling of the product. Furthermore, the user can rotate the push rod assembly 171 as needed to adjust the angle between the push rod assembly 171 and the first bracket assembly 110, thereby adjusting the height of the gripping end of the push rod assembly 171, improving product comfort, and providing a suitable gripping height for different users, making it more convenient to use. When the push rod assembly 171 is rotated until it is flush with the first bracket assembly 110, the push rod assembly 171 can be effectively stored, reducing the length of the product and facilitating product transportation and storage.

[0067] In this embodiment, the wheel 200 includes a movable caster 210 and a fixed caster 220. The movable caster 210 is connected to the bottom of the second support assembly 120, and the fixed caster 220 is connected to the bottom of the first support assembly 110. With this structure, the movable caster 210 and the fixed caster 220 work together to facilitate user movement of the frame 100, making product movement easier. Furthermore, the movable caster 210 can rotate around a vertical axis, allowing it to change direction, thus facilitating user movement of the cart and simplifying operation.

[0068] In this embodiment, a plurality of clamping members 400 are also included. Each clamping member 400 has a downward-facing opening and clamps the upper connecting bracket assembly. The clamping member 400 is used to clamp and fix the bushing 500 to the upper connecting bracket assembly. With the above structure, the clamping member 400 is roughly "C"-shaped, and the opening allows the bushing 500 and the upper connecting bracket assembly 131 to pass through. The clamping member 400 connects the bushing 500 to the upper connecting bracket assembly 131, which can prevent the bushing 500 from slipping or detaching, and ensure the stability of the product.

[0069] In this embodiment, a plurality of support members 180 are also included. The support members 180 are connected to the upper part of the first support assembly 110 and / or the upper part of the second support assembly 120, and the support members 180 are used to support the cover 600. With the above structure, when in use, the cover 600 is connected to the top of the support member 180, which can stably connect and fix the cover 600, effectively providing sun and rain protection and improving the user experience. Preferably, the support member 180 is detachably connected to the upper part of the first support assembly 110 and / or the upper part of the second support assembly 120. When the cover 600 is not needed, the support member 180 can be removed to reduce the product volume.

[0070] In this embodiment, a support member 190 is also included. The support member 190 is connected to the middle of the first support assembly 110 and extends in a direction away from the first support assembly 110. The support member 190 is used to support and accommodate the receiving bushing 700. With the above structure, in use, the receiving bushing 700 can be connected to the support member 190 to form a receiving space, in which tissues, umbrellas and other sundries can be stored. Furthermore, the support member 190 is located in the middle of the first support assembly 110 and extends in a direction away from the first support assembly 110. It is located below the push rod assembly 171 and does not increase the lateral volume of the product. It can make reasonable use of the space below the push rod assembly 171 and is closer to the user, making it convenient for the user to pick up and store items.

[0071] In this embodiment, the frame 100 further includes a second locking component 300, which moves between a locked position and an unlocked position. The inner side of the fixed caster 220 is provided with several second locking holes 221 along the edge of the pivot. When the second locking component 300 moves to the locked position, the locking rod 310 of the second locking component 300 is inserted into the second locking hole 221. When the second locking component 300 moves to the unlocked position, the locking rod 310 of the second locking component 300 is disengaged from the second locking hole 221. With the above structure, when the second locking component 300 moves to the locked position, the locking rod 310 is inserted into the second locking hole 221, preventing the fixed caster 220 from rotating, thus preventing the trolley from moving and allowing the trolley to remain stably in place for safer use. When the second locking component 300 moves to the unlocked position, the locking rod 310 disengages from the locking groove 221, allowing the fixed caster 220 to rotate freely, facilitating user push, pull, and movement of the trolley, making product movement convenient and effortless.

[0072] In this embodiment, the second locking assembly 300 further includes a drive pedal 320 and a drive rod 330. The drive pedal 320 is connected to the drive rod 330, and the end of the drive rod 330 is provided with a drive ramp 331. Under the action of an external force, the drive pedal 320 and the drive rod 330 rotate around the rotation axis of the drive rod 330. The first end of the locking rod 310 abuts against the drive ramp 331 and slides along the surface of the drive ramp 331, so that the locking rod 310 can extend and retract, and be inserted into or removed from the second locking hole 221. With the above structure, when in use, stepping on the drive pedal 320 causes the drive pedal 320 to rotate the drive rod 330 and the drive ramp 331. The drive ramp 331 drives the locking rod 310 to translate axially, thereby inserting it into the second locking hole 221, preventing the fixed caster 220 from rotating, so that the trolley can be stably stopped in place, making it safer to use.

[0073] In this embodiment, the second locking assembly 300 further includes a return spring 340. One end of the return spring 340 is connected to the connecting part at the bottom of the frame 100, and the other end is connected to the locking rod 310. The elastic force of the return spring 340 causes the locking rod 310 to have a tendency to move away from the second locking hole 221. With the above structure, when the second locking assembly 300 moves to the unlocked position, the locking rod 310 is disengaged from the second locking hole 221 under the elastic force of the return spring 340, allowing the fixed caster 220 to rotate freely, making it convenient for the user to move the trolley and making the product easy to use.

[0074] In this embodiment, the upper surface of the drive pedal 320 is provided with friction texture. Through this structural design, the friction texture can increase the coefficient of friction of the upper surface of the drive pedal 320. When the user steps on the drive pedal 320, it increases the friction between the user's foot and the upper surface of the drive pedal 320, making it easier for the user to step down on the drive pedal 320 and simplifying operation.

[0075] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the protection scope of this utility model.

Claims

1. A folding trolley, comprising a frame (100) and wheels (200) mounted on the bottom of the frame (100), characterized in that, The frame has a folded state and an unfolded state, and the frame (100) includes: First support assembly (110); The second support assembly (120) is arranged opposite to the first support assembly (110) in a front-to-back manner; A connecting bracket assembly (130) is provided, the two ends of which are respectively connected to the first bracket assembly (110) and the second bracket assembly (120); A support assembly (140) is provided, wherein the connecting end of the support assembly (140) is rotatably connected to the connecting bracket assembly (130), and the sliding end of the support assembly (140) is slidably connected to the connecting bracket assembly (130). When the frame (100) changes between a folded state and an unfolded state, the connecting end of the support component (140) rotates relative to the connecting bracket assembly (130), the sliding end of the support component (140) slides along the connecting bracket assembly (130), and the connecting bracket assembly (130) rotates relative to the first bracket assembly (110) and the second bracket assembly (120).

2. The folding trolley according to claim 1, characterized in that, It also includes a locking component (150), which is disposed on the sliding end of the support component (140). The locking component (150) moves between a locked position and an unlocked position. The connecting bracket component (130) is provided with a locking hole (103). When the frame (100) is in the unfolded state, the locking component (150) moves to the locked position, at which time the locking component (150) is inserted into the locking hole (103).

3. The folding trolley according to claim 2, characterized in that, The locking assembly (150) includes a locking block (151) and an elastic element (152). The sliding end of the support assembly (140) is provided with a locking block groove (1401). The locking block (151) is slidably disposed in the locking block groove (1401). The elastic element (152) is disposed in the locking block groove (1401) and abuts against the locking block (151). The elastic element (152) drives the locking block (151) to move toward the locking position.

4. The folding trolley according to claim 3, characterized in that, The locking assembly (150) further includes a drive member (153) and a transmission rope (154). The drive member (153) is disposed on the side of the connecting bracket assembly (130) near the connecting end of the support assembly (140). One end of the transmission rope (154) is connected to the drive member (153), and the other end of the transmission rope (154) extends along a portion of the interior of the support assembly (140) to the sliding end of the support assembly (140) and is connected to the locking block (151).

5. The folding trolley according to claim 4, characterized in that, The connecting bracket assembly (130) includes an upper connecting bracket assembly (131) and a lower connecting bracket assembly (132). The two ends of the upper connecting bracket assembly (131) are respectively connected to the upper ends of the first bracket assembly (110) and the upper ends of the second bracket assembly (120). The two ends of the lower connecting bracket assembly (132) are respectively connected to the lower ends of the first bracket assembly (110) and the lower ends of the second bracket assembly (120).

6. The folding trolley according to claim 5, characterized in that, The upper connecting bracket assembly (131) includes a first rod (131a), a second rod (131b), and a third rod (131c). The first end of the first rod (131a) is rotatably connected to the upper end of the first bracket assembly (110), the first end of the third rod (131c) is rotatably connected to the upper end of the second bracket assembly (120), and the two ends of the second rod (131b) are rotatably connected to the second ends of the first rod (131a) and the second ends of the third rod (131c), respectively.

7. The folding trolley according to claim 6, characterized in that, The lower connecting bracket assembly (132) includes a fourth rod (132a), a fifth rod (132b), and a sixth rod (132c). The first end of the fourth rod (132a) is rotatably connected to the lower end of the first bracket assembly (110), the first end of the sixth rod (132c) is rotatably connected to the lower end of the second bracket assembly (120), and the two ends of the fifth rod (132b) are rotatably connected to the second ends of the fourth rod (132a) and the second ends of the sixth rod (132c), respectively.

8. The folding trolley according to claim 7, characterized in that, The second rod (131b) extends downward in the middle to form a connecting rod (131d). The driving member (153) is T-shaped and has a sliding channel (1531). The connecting rod (131d) is inserted into the sliding channel (1531) so that the driving member (153) can slide along the connecting rod (131d).

9. The folding trolley according to claim 8, characterized in that, The support assembly (140) includes two first support assemblies (141), the connecting ends of the two first support assemblies (141) are rotatably connected to the connecting rod (131d), and the sliding ends of the two first support assemblies (141) are slidably connected to the fourth rod (132a) and the sixth rod (132c), respectively.

10. The folding trolley according to claim 9, characterized in that, The support assembly (140) further includes a second support assembly (142), the first ends of the two second support assemblies (142) are rotatably connected to the middle of the two first support assemblies (141), and the second ends of the two second support assemblies (142) are rotatably connected to the fourth rod (132a) and the sixth rod (132c).

Images