stroller

Abstract

The present disclosure relates to the field of children's tools, and provides a stroller. The stroller comprises a chassis, a first diagonal support rod, a second diagonal support rod, a leg sliding sleeve, a push rod, a locking pin and a driving member, the chassis is rotationally connected with a first frame and a second frame; the first diagonal support rod and the second diagonal support rod are oppositely arranged in a first direction, the first diagonal support rod comprises a near-ground end and a far-ground end, the second diagonal support rod comprises a near-ground end and a far-ground end, the far-ground end of the first diagonal support rod is rotationally connected with the far-ground end of the second diagonal support rod, the near-ground end of the first diagonal support rod is rotationally connected with the first frame, and the near-ground end of the second diagonal support rod is rotationally connected with the second frame; the leg sliding sleeve is sleeved on the second diagonal support rod and can slide along the extension direction of the second diagonal support rod; the push rod is rotationally connected with the leg sliding sleeve; the locking pin is movably arranged on the push rod; and the driving member is arranged on the push rod and is used for driving the locking pin to move between a first position and a second position. According to the stroller provided by the present disclosure, the folding and storage of the stroller can be realized.

Description

Technical Field

[0001] This disclosure relates to the field of children's products technology, and more particularly to a stroller. Background Technology

[0002] In the field of maternal and infant products, strollers are the core tool for parents to take their infants and young children out, and their portability directly affects the user experience and adaptability to different scenarios.

[0003] With the acceleration of urbanization, family living spaces are becoming more compact, and people mainly travel by public transportation (subway, bus) or private cars, making the demand for "lightweight and easy-to-store" baby strollers increasingly prominent.

[0004] However, the current mainstream baby stroller products still have significant technical pain points in the storage process. They occupy a lot of space, are not suitable for users to carry and store, affect the user experience, and fail to meet the convenience needs of diverse usage scenarios. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, the present invention provides a trolley.

[0006] This application provides a trolley comprising: a chassis, the chassis including a frame one and a frame two arranged sequentially in a first direction, the frame one and the frame two being rotatably connected; a diagonal brace one and a diagonal brace two, the diagonal brace one and the diagonal brace two being arranged opposite to each other in the first direction, the diagonal brace one including a near-ground end one and a far-ground end one, the diagonal brace two including a near-ground end two and a far-ground end two, the far-ground end one and the far-ground end two being rotatably connected, the near-ground end one being rotatably connected to the frame one, and the near-ground end two being rotatably connected to the frame two; and a support leg sleeve, the support leg sleeve being sleeved on the diagonal brace two. The push rod is rotatably connected to the outrigger sleeve. A locking pin is movably disposed on the push rod, and includes a first position and a second position. When the locking pin is in the first position, at least a portion of the locking pin passes through the outrigger sleeve and the second diagonal brace, and the push rod, the outrigger sleeve, and the second diagonal brace are fixed. When the locking pin is in the second position, the locking pin disengages from the second diagonal brace. A driving member is disposed on the push rod and is used to drive the locking pin to move between the first and second positions.

[0007] According to the trolley provided in this application embodiment, when the trolley is in use, the locking pin is in the first position, and the positions of the push rod and the second diagonal support rod are fixed, thus fixing the push rod and the second diagonal support rod in the use position. When the trolley needs to be folded for storage, the locking pin is moved to the second position, the support leg slides down along the second diagonal support rod, the push rod rotates towards the first diagonal support rod, the first frame and the second frame fold and rotate, and the first diagonal support rod and the second diagonal support rod fold and rotate, thereby realizing the folding of the trolley. This reduces the space occupied by the trolley in the folded state, making it easier for consumers to put away and store the trolley.

[0008] The driving component is used to drive the locking pin to move between the first position and the second position. The driving component is mounted on the push rod to facilitate user operation.

[0009] In one possible implementation of this application, the push rod includes a hollow section and a handrail. One end of the hollow section is rotatably connected to the support leg sleeve, and the other end is connected to the handrail. The locking pin is movably disposed within the hollow section. The driving member is disposed in the hollow section and located on the side of the locking pin facing the handrail. The driving member is slidably sleeved on the circumferential outer side of the hollow section. The trolley includes a connecting member located inside the hollow section. One end of the connecting member is connected to the locking pin, and the other end is connected to the driving member. The driving member includes a third position and a fourth position. When the driving member is in the third position, the locking pin is in the first position. When the driving member is in the fourth position, the locking pin is in the second position.

[0010] In one possible implementation of this application, the peripheral wall of the hollow section is provided with a clearance hole, the clearance hole extends in the direction of the locking pin toward the driving member, one end of the connector is connected to the locking pin, and the other end passes through the clearance hole and is connected to the driving member.

[0011] In one possible implementation of this application, the peripheral wall of the hollow section is further provided with a first positioning hole, and the peripheral wall of the driving member is provided with a second positioning hole corresponding to the first positioning hole; the trolley further includes: a positioning member, the positioning member being movably disposed on the outer peripheral wall of the driving member, the positioning member including a fifth position and a sixth position, when the positioning member is located in the fifth position, a portion of the positioning member passes through the first positioning hole and the second positioning hole, and when the positioning member is located in the sixth position, the positioning member is located outside the first positioning hole.

[0012] In one possible implementation of this application, the positioning member includes a positioning segment, a connecting segment, and a force-bearing segment connected in sequence. The connecting segment is rotatably connected to the driving member. When the positioning member is in the fifth position, the positioning segment passes through the first positioning hole and the second positioning hole, and the force-bearing segment is spaced apart from the driving member.

[0013] In one possible implementation of this application, the connecting segment and the driving member are rotatably connected by a rotating shaft, the rotating shaft being fitted with a torsion spring, the torsion spring always applying a force to the positioning member toward the fifth position.

[0014] In one possible implementation of this application, the driving member has an auxiliary protrusion on its circumferential outer side.

[0015] In one possible implementation of this application, the trolley further includes: a locking block, wherein the locking pin is disposed on the locking block, the radial dimension of the locking block matches the inner diameter dimension of the hollow section, one end of the connector is connected to the locking block, and the other end is connected to the drive member.

[0016] In one possible implementation of this application, the cross-sectional area of ​​the locking pin is reduced in the direction of the locking pin toward the second diagonal brace.

[0017] In one possible implementation of this application, the trolley further includes a diagonal brace, one end of which is rotatably connected to the push rod and the other end of which is rotatably connected to the chassis. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of a trolley provided for some embodiments of this application; Figure 2 A schematic diagram of a trolley provided for other embodiments of this application; Figure 3 for Figure 1 A partial schematic diagram of the cart shown; Figure 4 A schematic diagram illustrating the installation of a basket according to some embodiments of this application; Figure 5 for Figure 4 A schematic diagram of the auxiliary sliding sleeve from another perspective; Figure 6 for Figure 4 Enlarged view of point A shown in the image; Figure 7 for Figure 5 Enlarged view of point B shown; Figure 8 for Figure 4 A cross-sectional view showing the location of the auxiliary sliding sleeve.

[0021] Figure label: 100. Trolley; 111. Frame 1; 112. Frame 2; 121. Diagonal brace 1; 122. Diagonal brace 2; 123. Rotating connection; 124. Casters; 131. First enclosure; 132. Second enclosure; 140. Auxiliary sliding sleeve; 141. Auxiliary rod; 151. First top frame; 152. Second top frame; 160. Support leg sliding sleeve; 170. Push rod; 171. Driving component; 172. Hollow section; 173. Handrail; 174. Clearance hole; 175. Positioning component; 1751. Positioning section; 1752. Connecting section; 1753. Force-bearing section; 176. Auxiliary protrusion; 181. Locking pin; 182. Locking block; 190. Diagonal brace; 201. Basket connecting part; 202. Basket; 1401, Locking hole; 1402, First connecting hole; 1403, Unlocking component; 1404, Second connecting hole; 1405, First unlocking section; 1406, Second unlocking section; 1407, Third unlocking section; 1408, First extension plate; 1409, Second extension plate; 1410, Safety cover plate; 1411, Pressing protrusion; 1412, Elongated hole; 1413, Limiting elongated hole; 1414, Rod-shaped shaft. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0024] Currently, strollers are the core tool for parents to take their infants and toddlers out, and their portability directly affects the user experience and adaptability to different scenarios.

[0025] With the acceleration of urbanization, family living spaces are becoming more compact, and people mainly travel by public transportation (subway, bus) or private cars, making the demand for "lightweight and easy-to-store" baby strollers increasingly prominent.

[0026] However, the current mainstream baby stroller products still have significant technical pain points in the storage process. They occupy a lot of space, are not suitable for users to carry and store, affect the user experience, and fail to meet the convenience needs of diverse usage scenarios.

[0027] To resolve the above technical issues, please refer to Figures 1 to 3 This application provides a foldable trolley 100, which may include a canopy frame, a load-bearing frame, a chassis, a first diagonal brace 121, a second diagonal brace 122, a support leg sleeve 160, a push rod 170, and a locking pin 181.

[0028] The chassis may include the first direction (e.g.) Figure 1 The first frame 111 and the second frame 112 are arranged sequentially in the front-back direction shown in the figure. The first direction can be the front-back direction when the trolley 100 is in the unfolded state. The first frame 111 and the second frame 112 are arranged sequentially in the front-back direction, and the first frame 111 and the second frame 112 are rotatably connected.

[0029] Specifically, frame 111 can be formed as a U-shaped tube, and frame 212 can also be formed as a U-shaped tube. The open ends of frame 111 and frame 212 are arranged opposite each other in the front-back direction and are rotatably connected by a pivot and a rotating hole. In this way, frame 111 and frame 212 can rotate around the pivot and thus achieve a folded state.

[0030] Among them, frame one 111 can be formed by assembling multiple straight tubes, and frame two 112 can also be formed by assembling multiple straight tubes.

[0031] In some other embodiments of this application, frame one 111 and frame two 112 may also be formed as plate-like structures.

[0032] Both diagonal brace 121 and diagonal brace 122 are formed into long rods. Diagonal brace 121 and diagonal brace 122 are arranged opposite each other in the front-back direction. Diagonal brace 121 includes a near-ground end 1 and a far-ground end 1, with the near-ground end 1 located above the far-ground end 1. Diagonal brace 122 includes a near-ground end 2 and a far-ground end 2, with the near-ground end 2 located above the far-ground end 2. The far-ground end 1 and the far-ground end 2 are rotatably connected. Specifically, a rotatable connection part 123 is provided between the far-ground end 1 and the far-ground end 2, and both the far-ground end 1 and the far-ground end 2 are rotatably connected to the rotatable connection part 123.

[0033] Thus, the folding between diagonal brace 121 and diagonal brace 2122 is achieved through the rotatable connection between diagonal brace 121 and diagonal brace 2122.

[0034] Among them, the sum of the lengths of diagonal brace 121 and diagonal brace 122 is greater than the sum of the lengths of frame 111 in the first direction and frame 112 in the first direction.

[0035] Thus, it can be understood that when frame 111 and frame 212 are in the unfolded state (i.e., the planes where frame 111 and frame 212 are located are both parallel to the horizontal plane), the diagonal brace 121, diagonal brace 2122 and the chassis can form a stable triangular structure, providing basic support for the overall trolley 100.

[0036] Furthermore, in the specific implementation process, there can be two diagonal braces 121, which are spaced apart in the left and right directions. There can also be two diagonal braces 122, which are spaced apart in the left and right directions, to provide more stable support for the trolley 100.

[0037] One of the diagonal braces 121 is connected to a caster wheel 124 near the ground, and the other of the diagonal braces 122 is connected to a caster wheel 124 near the ground, for rolling to drive the trolley 100.

[0038] The support frame is located on the upper side of the chassis. The support frame may include a first frame 131 and a second frame 132. Both the first frame 131 and the second frame 132 are formed as U-shaped frames. The open ends of the first frame 131 and the second frame 132 are opposite to each other. The first frame 131 is rotatably connected to the rotating connection part 123, and the second frame 132 is rotatably connected to the rotating connection part 123, so as to realize the folding of the first frame 131 and the second frame 132. The support frame is used to install a cloth bag or strap to carry the child. The first frame 131 and the second frame 132 can each carry one child, or one of them can be folded and the other can be used to carry one child.

[0039] Please continue reading for more details. Figure 1 and Figure 2 The first frame 131 is located on the front side of the trolley 100. An auxiliary rod 141 is provided between the first frame 131 and the first diagonal brace 121. An auxiliary sliding sleeve 140 is slidably sleeved on the outer circumferential side of the first diagonal brace 121. The auxiliary rod 141 and the first diagonal brace 121 are rotatably connected through the auxiliary sliding sleeve 140. The auxiliary sliding sleeve 140 is sleeved on the outer circumferential side of the first diagonal brace 121 and can slide along the extension direction of the first diagonal brace 121. One end of the auxiliary rod 141 is rotatably connected to the first frame 131, and the other end is rotatably connected to the auxiliary sliding sleeve 140.

[0040] Among them, the auxiliary rod 141 can be formed into an arc shape to adapt to the movement path of the first frame 131 and the diagonal brace 121 during the folding process, thereby improving the smoothness of the folding process.

[0041] The canopy frame includes a first top frame 151 and a second top frame 152. The first top frame 151 is disposed on the first enclosure 131 and is rotatably connected to the first enclosure 131. The second top frame 152 is disposed on the second enclosure 132 and is rotatably connected to the second enclosure 132. The first top frame 151 and the second top frame 152 are used to provide users with a location to install the canopy.

[0042] The outrigger sleeve 160 is fitted onto the second diagonal brace 122 and can slide along the extension direction of the second diagonal brace 122. The push rod 170 is rotatably connected to the outrigger sleeve 160. The locking pin 181 is movably disposed on the push rod 170. The locking pin 181 includes a first position and a second position. When the locking pin 181 is in the first position, at least a portion of the locking pin 181 passes through the outrigger sleeve 160 and the second diagonal brace 122, and the push rod 170, the outrigger sleeve 160 and the push rod 170 are fixed. When the locking pin 181 is in the second position, the locking pin 181 disengages from the second diagonal brace 122.

[0043] The trolley 100 includes a used state and a folded state. When the trolley is in the used state, the push rod 170 and the second diagonal brace 122 are fixed in position. The first diagonal brace 121, the second diagonal brace 122 and the chassis form a triangular structure to provide a support base for the trolley 100 as a whole.

[0044] In this way, when the trolley 100 is in use, the locking pin 181 is in the first position, and the positions of the push rod 170 and the second diagonal support rod 122 are fixed, thus securing the push rod 170 and the second diagonal support rod 122 in the use position. When the trolley 100 needs to be folded for storage, the locking pin 181 is moved to the second position, the support leg slide 160 slides down along the second diagonal support rod 122, the push rod 170 rotates towards the first diagonal support rod 121, the first frame 111 and the second frame 112 fold and rotate, and the first diagonal support rod 121 and the second diagonal support rod 122 fold and rotate, thereby realizing the folding of the trolley 100. This reduces the space occupied by the trolley 100 in the folded state, making it easier for consumers to store and retrieve.

[0045] At the same time, the first frame 131 and the second frame 132 fold down and rotate, and the first top frame 151 and the second top frame 152 fold down and rotate, thereby realizing the folding and storage of the first frame 131 and the second frame 132, and the first top frame 151 and the second top frame 152 in sequence.

[0046] To enhance the structural strength of the chassis, reinforcing rods are provided on frame 111 and frame 212, extending in the left and right directions.

[0047] Furthermore, the trolley 100 may also include a diagonal brace 190, one end of which is rotatably connected to the chassis and the other end of which is rotatably connected to the push rod 170. In this way, by setting the diagonal brace 190, the stability and structural strength of the push rod 170 when the trolley 100 is in use can be improved.

[0048] The trolley 100 also includes a drive unit 171, which is located on the push rod 170 and is used to activate the locking pin 181 to move between a first position and a second position.

[0049] Therefore, the drive element 171 is mounted on the push rod 170 to facilitate driving the drive element 171.

[0050] Furthermore, the push rod 170 includes a hollow section 172 and a handrail 173. One end of the hollow section 172 is rotatably connected to the support leg slide 160, and the other end is connected to the handrail 173. The locking pin 181 is movably disposed within the hollow section 172. The driving member 171 is disposed in the hollow section 172 and is located on the side of the locking pin 181 facing the handrail 173. The driving member 171 is formed into a cylindrical shape and is slidably sleeved on the circumferential outer side of the hollow section 172. One end of the connecting member is connected to the locking pin 181, and the other end is connected to the driving member 171. The driving member 171 includes a third position and a fourth position. When the driving member 171 is in the third position, the locking pin 181 is in the first position. When the driving member 171 is in the fourth position, the locking pin 181 is in the second position.

[0051] Thus, by setting a drive member 171 that can move between the third and fourth positions, the locking pin 181 can be moved between the first and second positions, thereby enabling the trolley 100 to switch between the use state and the folded state.

[0052] The hollow section 172 is rotatably connected to the support arm 173. In the specific implementation process, when there are two diagonal braces 122, and the two diagonal braces 122 are arranged opposite each other in the left and right directions, the push rod 170 can be formed into a U-shape, and the two free ends of the push rod 170 are respectively connected to the two diagonal braces 122.

[0053] It should be noted that the driving component 171 can reciprocate in the extension direction of the hollow section 172, and the connecting component can be a steel wire. Under the action of the connecting component, the locking pin 181 is driven to reciprocate along the extension direction of the hollow section 172, thereby driving the locking pin 181 to move between the first position and the second position.

[0054] It is understandable that, since the driving component 171 is sleeved on the circumferential outer side of the hollow section 172 and the locking pin 181 is located inside the hollow section 172, in order to realize the connection between the driving component 171 and the locking pin 181, in the specific implementation process, the peripheral wall of the hollow section 172 is provided with a clearance hole 174. The clearance hole 174 extends in the direction of the locking pin 181 toward the driving component 171. One end of the connector is connected to the locking pin 181, and the other end passes through the clearance hole 174 and is connected to the driving component 171.

[0055] In the specific implementation process, the avoidance hole 174 is formed into a waist-shaped hole.

[0056] In some embodiments of this application, the trolley 100 further includes a positioning member 175. The peripheral wall of the hollow section 172 is also provided with a first positioning hole. The peripheral wall of the drive member 171 is provided with a second positioning hole corresponding to the first positioning hole. The positioning member 175 is movably disposed on the outer peripheral wall of the drive member 171. The positioning member 175 includes a fifth position and a sixth position. When the positioning member 175 is located in the fifth position, a portion of the positioning member 175 passes through the first positioning hole and the second positioning hole. When the positioning member 175 is located in the sixth position, the positioning member 175 is located outside the first positioning hole.

[0057] Understandably, when the positioning member 175 is in the fifth position, part of the positioning member 175 passes through the first positioning hole and the second positioning hole. Thus, by setting the positioning member 175, the positions of the driving member 171 and the hollow section 172 are fixed, limiting the movement of the driving member 171. When the positioning member 175 is in the sixth position, the positioning member 175 is outside the first positioning hole, and the positioning member 175 cannot fix the driving member 171 and the hollow section 172. At this time, the driving member 171 can move along the extension direction of the hollow section 172, realizing the movement of the driving member 171 between the third position and the fourth position, thereby realizing the movement of the locking pin 181 between the first position and the second position.

[0058] It should be noted that when the trolley 100 is in use, moving the positioning component 175 to the fifth position can ensure that the positions of the driving component 171 and the hollow section 172 are fixed, thereby preventing the driving component 171 from sliding relative to the hollow section 172. This ensures that the position between the push rod 170 and the second diagonal brace 122 is fixed when the trolley 100 is in use, improving the stability and safety of the trolley 100 in use, and preventing the push rod 170 and the second diagonal brace 122 from rotating.

[0059] Furthermore, the positioning member 175 includes a positioning segment 1751, a connecting segment 1752, and a force-bearing segment 1753 connected in sequence. The connecting segment 1752 is rotatably connected to the driving member 171. When the positioning member 175 is in the fifth position, the positioning segment 1751 passes through the first positioning hole and the second positioning hole, and the force-bearing segment 1753 is spaced apart from the driving member 171.

[0060] In this way, by pressing the surface of the force-bearing section 1753 away from the hollow section 172, the force-bearing section 1753 moves toward the hollow section 172. Under the rotation of the connecting section 1752, the positioning section 1751 moves toward the side away from the hollow section 172, thereby realizing the movement of the positioning component 175 from the fifth position to the sixth position.

[0061] Furthermore, the connecting section 1752 and the driving member 171 are rotatably connected by a rotating shaft. The rotating shaft is fitted with a torsion spring, which always applies a force to the positioning member 175 to rotate toward the fifth position. Thus, by setting the torsion spring, the positioning member 175 can move from the sixth position to the fifth position, thereby realizing the position switching of the positioning member 175 between the fifth and sixth positions.

[0062] In some other embodiments, a spring may be sandwiched between the force-bearing section 1753 and the hollow section 172 to always apply a force to the positioning member 175 to rotate toward the fifth position.

[0063] In some embodiments of this application, the drive member 171 is provided with an auxiliary protrusion 176 on its circumferential outer side. The auxiliary protrusion 176 is used to provide the user with a force point for sliding the drive member 171, so as to facilitate the user's force application.

[0064] In some embodiments of this application, the trolley 100 further includes a locking block 182, a locking pin 181 disposed on the locking block 182, the radial dimension of the locking block 182 matches the inner diameter dimension of the hollow section 172, one end of the connector is connected to the locking block 182, and the other end is connected to the drive member 171.

[0065] The radial dimension of the locking block 182 matches the inner diameter of the hollow section 172, meaning that the cross-sectional shape and size of the locking block 182 match the cross-sectional shape and size inside the hollow section 172. When the locking block 182 moves in the extending direction of the hollow section 172, the wobbling of the locking block 182 can be avoided, thereby preventing the wobbling of the locking pin 181.

[0066] In some embodiments of this application, the cross-sectional area of ​​the locking pin 181 is reduced in the direction of the locking pin 181 toward the second diagonal brace 122. Specifically, the cross-section of the locking pin 181 can be formed as a trapezoid. In this way, during the process of the locking pin 181 extending into the second diagonal brace 122, the free end of the locking pin 181 plays a guiding and avoidance role, reducing the occurrence of interference between the locking pin 181 and the second diagonal brace.

[0067] Currently, baby strollers on the market are generally divided into seat mode and infant carrier mode according to their functions. However, no stroller currently available can simultaneously support both seat mode and infant carrier mode, which affects the user experience.

[0068] To resolve the above issues, please refer to Figures 4 to 8 The trolley 100 provided in this application also includes a basket connecting part 201 and a basket 202. The basket connecting part 201 is provided on the diagonal support rod 121 and is used to detachably connect with the basket 202.

[0069] In this way, when the user needs to use the basket 202, the basket 202 can be installed on the diagonal support rod 121 through the basket connecting part 201. Specifically, the basket connecting part 201 and the diagonal support rod 121 can be detachably connected by a buckle, so as to switch between the basket mode and the canopy seat mode.

[0070] In the specific implementation process, the user needs to rotate the first frame 131 toward the diagonal support rod 121, and then install the carrier 202 on the carrier connection part 201. It should be noted that by tilting the first frame 131, the position of the carrier 202 is made to avoid the position of the rear infant seat. The front carrier 202 can carry one infant, and the rear seat can carry one infant at the same time.

[0071] Therefore, depending on the user's needs, two infants can be seated in one seat mode and in the other in a carrier mode at the same time.

[0072] In some embodiments of this application, the auxiliary sliding sleeve 140 is provided with a locking hole 1401, and the diagonal brace 121 is provided with a first connecting hole 1402 that mates with the locking hole 1401. The trolley 100 also includes an unlocking member 1403, which is disposed on the auxiliary sliding sleeve 140. The unlocking member 1403 includes a locked position and an unlocked position. When the unlocking member 1403 is in the locked position, at least a portion of the unlocking member 1403 passes through the locking hole 1401 and the first connecting hole 1402. When the unlocking member 1403 is in the unlocked position, the unlocking member 1403 disengages from the first connecting hole 1402. When the locking hole 1401 and the first connecting hole 1402 are directly opposite each other, the first frame 131 is in an inclined position close to the diagonal brace 121.

[0073] Therefore, by setting the unlocking component 1403, the auxiliary sliding sleeve 140 and the diagonal support rod 121 are fixed and slidable. It can be understood that when part of the unlocking component 1403 passes through the locking hole 1401 and the first connecting hole 1402, the position of the auxiliary sliding sleeve 140 relative to the diagonal support rod 121 is fixed, ensuring the overall stability of the trolley 100 when the user locks the basket 202.

[0074] In some embodiments of this application, the diagonal brace 121 is further provided with a second connecting hole 1404 that cooperates with the locking hole 1401. The first connecting hole 1402 and the second connecting hole 1404 are spaced apart in the extending direction of the diagonal brace 121. When the locking hole 1401 and the second connecting hole 1404 are facing each other, the first frame 131 is in a horizontal position. Specifically, the second connecting hole 1404 is located above the first connecting hole 1402.

[0075] In this way, when the first frame 131 is in a horizontal position, that is, when the stroller 100 is in the canopy seat mode, the position between the auxiliary sliding sleeve 140 and the diagonal brace 121 is fixed, and the position of the first frame 131 is fixed, ensuring the fixed position of the baby seat.

[0076] Specifically, the unlocking component 1403 includes a first unlocking segment 1405, a second unlocking segment 1406, and a third unlocking segment 1407 connected in sequence. The second unlocking segment 1406 is rotatably connected to the auxiliary sliding sleeve 140. The first unlocking segment 1405 is close to the locking hole 1401 and can extend into the locking hole 1401 and the first connecting hole 1402. The third unlocking segment 1407 is spaced apart from the auxiliary sliding sleeve 140.

[0077] The second unlocking section 1406 and the auxiliary sliding sleeve 140 are rotatably connected by a pivot and a pivot hole. In this way, by pressing or pulling up the third unlocking section 1407, the user can make the first unlocking section 1405 extend into or out of the first connecting hole 1402, thereby fixing or allowing the position of the diagonal brace 121 and the auxiliary sliding sleeve 140 to be slidable.

[0078] It is understandable that when the auxiliary sliding sleeve 140 moves to the position where the locking hole 1401 and the second connecting hole 1404 are aligned, the first unlocking segment 1405 can be inserted into or extended out of the first connecting hole 1402 by pressing or pulling up the third unlocking segment 1407, thereby fixing or allowing the position of the diagonal brace 121 and the auxiliary sliding sleeve 140 to be slidable.

[0079] In some embodiments of this application, the unlocking member 1403 further includes an elastic member sandwiched between the third unlocking segment 1407 and the auxiliary sliding sleeve, and always applies a force toward the third unlocking segment 1407 toward the auxiliary sliding sleeve.

[0080] Thus, when the user removes the pressure on the third unlocking section 1407, under the elastic force of the elastic element, the elastic element drives the third unlocking section 1407 to move away from the auxiliary sliding sleeve. With the second unlocking section 1406 rotatably connected to the auxiliary sliding sleeve, the first unlocking section 1405 moves towards the auxiliary sliding sleeve, so that the first unlocking section 1405 can extend into the first connecting hole 1402 or the second connecting hole 1404, thereby fixing the diagonal brace 121 to the auxiliary sliding sleeve 140.

[0081] In some embodiments of this application, the trolley 100 may further include a safety cover 1410, which is slidably connected to the auxiliary sliding sleeve 140 and located on the outer periphery of the unlocking member 1403. The safety cover 1410 can slide along the extension direction of the diagonal brace 121. The safety cover 1410 includes a covered position and an open position. When the safety cover 1410 is in the covered position, the safety cover 1410 covers the unlocking member 1403. When the safety cover 1410 is in the open position, the third unlocking segment 1407 is exposed to the safety cover 1410.

[0082] Therefore, by setting the safety cover 1410, the unlocking component 1403 is protected. When the user adjusts the first frame 131 to the basket position or the seat position, the safety cover 1410 can be moved to the covered position, so that others cannot directly touch the unlocking component 1403, thereby ensuring safety and preventing accidental touch. When the user needs to adjust the first frame 131, the safety cover 1410 can be moved to the open position, so that the user can touch the unlocking component 1403.

[0083] Specifically, the safety cover 1410 is provided with an elongated hole 1412, which extends along the extension direction of the diagonal brace 121. The pivot of the unlocking member 1403 passes through the elongated hole 1412, and the pivot of the unlocking member 1403 can slide in the elongated hole 1412 along the extension direction of the elongated hole 1412, thereby realizing the movement of the safety cover 1410 between the covered position and the open position.

[0084] Furthermore, the outer surface of the safety cover 1410 is provided with pressing protrusions 1411, which facilitates the user's movement of the safety cover 1410.

[0085] In some embodiments of this application, the trolley 100 further includes a first extension plate 1408, one end of which is connected to one axial end of the auxiliary slide sleeve 140, and the other end extends in a direction away from the auxiliary slide sleeve 140.

[0086] Therefore, by setting the first extension plate 1408, the contact area between the auxiliary sliding sleeve 140 and the diagonal brace 121 can be increased, thereby improving the stability of the auxiliary sliding sleeve 140 during the sliding process.

[0087] Furthermore, the trolley 100 may also include a second extension plate 1409, one end of which is connected to the other axial end of the auxiliary sleeve 140, and the other end extends in a direction away from the auxiliary sleeve 140.

[0088] There are two first extension plates 1408, which are arranged opposite to each other.

[0089] The number of second extension plates 1409 can also be two, with the two second extension plates 1409 arranged opposite each other.

[0090] In some embodiments of this application, in order to control the sliding stroke of the auxiliary sliding sleeve 140, a strip-shaped limiting elongated hole 1413 can be provided on the diagonal support rod 121. The limiting elongated hole 1413 extends in the direction of the diagonal support rod 121. A rod-shaped shaft 1414 is arranged to pass through the auxiliary sliding sleeve 140 and the limiting elongated hole 1413. In this way, when the rod-shaped shaft 1414 moves to the end of the limiting elongated hole 1413 that is close to the ground, the locking hole 1401 is directly opposite the first connecting hole 1402. When the rod-shaped shaft moves to the end of the limiting elongated hole 1413 that is far away from the ground, the locking hole 1401 is directly opposite the second connecting hole 1404.

[0091] Therefore, while ensuring the function of the auxiliary sliding sleeve 140, the stroke of the auxiliary sliding sleeve 140 is shortened, thereby improving the overall stability of the trolley 100.

[0092] The rotatable connection between the auxiliary rod 141 and the auxiliary sliding sleeve 140 can also be achieved through the rod-shaped shaft 1414.

[0093] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0094] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the utility model herein.

Claims

1. A trolley, characterized in that, include: The chassis includes a frame one and a frame two arranged sequentially in a first direction, and the frame one and the frame two are rotatably connected. Diagonal brace one and diagonal brace two are arranged opposite to each other in the first direction. Diagonal brace one includes a near-ground end one and a far-ground end one. Diagonal brace two includes a near-ground end two and a far-ground end two. The far-ground end one and the far-ground end two are rotatably connected. The near-ground end one is rotatably connected to the frame one. The near-ground end two is rotatably connected to the frame two. The outrigger slide sleeve is sleeved on the second diagonal brace and can slide along the extension direction of the second diagonal brace; A push rod, which is rotatably connected to the outrigger sleeve; A locking pin is movably disposed on the push rod. The locking pin has a first position and a second position. When the locking pin is in the first position, at least a portion of the locking pin passes through the outrigger slide and the second diagonal brace. The push rod, the outrigger slide, and the second diagonal brace are fixed. When the locking pin is in the second position, the locking pin disengages from the second diagonal brace. A driving element is disposed on the push rod, and the driving element is used to drive the locking pin to move between a first position and a second position.

2. The trolley according to claim 1, characterized in that, The push rod includes a hollow section and a handrail. One end of the hollow section is rotatably connected to the support leg sleeve, and the other end is connected to the handrail. The locking pin is movably disposed within the hollow section. The driving component is disposed in the hollow section and located on the side of the locking pin facing the handrail. The driving component is slidably sleeved on the circumferential outer side of the hollow section. The trolley further includes: a connector located inside the hollow section, one end of which is connected to the locking pin and the other end of which is connected to the drive component; The driving component includes a third position and a fourth position. When the driving component is in the third position, the locking pin is in the first position. When the driving component is in the fourth position, the locking pin is in the second position.

3. The trolley according to claim 2, characterized in that, The hollow section has a clearance hole on its peripheral wall. The clearance hole extends in the direction of the locking pin toward the driving member. One end of the connector is connected to the locking pin, and the other end passes through the clearance hole and is connected to the driving member.

4. The trolley according to claim 3, characterized in that, The hollow section is further provided with a first positioning hole on its peripheral wall, and the driving component is provided with a second positioning hole corresponding to the first positioning hole on its peripheral wall. The trolley further includes a positioning member, which is movably disposed on the outer peripheral wall of the drive member. The positioning member includes a fifth position and a sixth position. When the positioning member is in the fifth position, a portion of the positioning member passes through the first positioning hole and the second positioning hole. When the positioning member is in the sixth position, the positioning member is located outside the first positioning hole.

5. The trolley according to claim 4, characterized in that, The positioning component includes a positioning segment, a connecting segment, and a force-bearing segment connected in sequence. The connecting segment is rotatably connected to the driving component. When the positioning component is in the fifth position, the positioning segment passes through the first positioning hole and the second positioning hole. The force-bearing segment is spaced apart from the driving component.

6. The trolley according to claim 5, characterized in that, The connecting section and the driving component are rotatably connected by a rotating shaft, which is fitted with a torsion spring. The torsion spring always applies a force to the positioning component, causing it to rotate toward the fifth position.

7. The trolley according to claim 1, characterized in that, The driving component has an auxiliary protrusion on its circumferential outer side.

8. The trolley according to claim 2, characterized in that, Also includes: A locking block, wherein the locking pin is disposed on the locking block, the radial dimension of the locking block matches the inner diameter dimension of the hollow section, one end of the connector is connected to the locking block, and the other end is connected to the driving component.

9. The trolley according to claim 1, characterized in that, In the direction of the locking pin toward the second diagonal brace, the cross-sectional area of ​​the locking pin decreases.

10. The trolley according to claim 1, characterized in that, Also includes: A diagonal brace, one end of which is rotatably connected to the push rod, and the other end of which is rotatably connected to the chassis.

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