Carrier

Abstract

The invention discloses a carrier and relates to the technical field of carrying devices.The carrier comprises a frame and at least one guardrail structure, and at least one bearing space is formed in the frame; the bearing space is provided with two first side edges which are opposite in the first horizontal direction and extend in the second horizontal direction and two second side edges which are opposite in the second horizontal direction and extend in the first horizontal direction, and the guardrail structure comprises two side guardrails corresponding to the two first side edges and a back guardrail arranged corresponding to one second side edge. The guardrail structure has a first state and a second state, and when the guardrail structure is in the first state, the two side guardrails and the back guardrail are all provided with first positions, so that the guardrail structure is arranged on the peripheral side of the bearing space in a blocking mode; when the guardrail structure is in the second state, at least one of the two side guardrails and the back guardrail can move in the second position in the direction close to or away from the frame, so that at least part of the bearing space is exposed.

Description

Technical Field

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

[0002] Currently, push-pull powered vehicles on the market, such as carts and trailers, often have guardrails to prevent items from falling off. To facilitate daily storage and carrying, these guardrails are often designed to be reversible. However, this reversible design only folds the guardrails, not adjusts them. Furthermore, the guardrail's dimensions remain unchanged before and after reversing, resulting in the guardrail being too high or too low. Summary of the Invention

[0003] The main purpose of the present invention is to provide a vehicle to solve the problem that the existing guardrail structure is too high or too low.

[0004] To achieve the above-mentioned purpose, the carrier proposed by the present invention includes:

[0005] a frame having at least one bearing space thereon, the bearing space having two first sides opposite to each other in a first horizontal direction and extending along a second horizontal direction, and two second sides opposite to each other in the second horizontal direction and extending along the first horizontal direction; and

[0006] At least one guardrail structure is provided corresponding to the bearing space, the guardrail structure comprising two side guardrails corresponding to the two first side edges, and a back guardrail provided corresponding to the second side edge;

[0007] The guardrail structure has a first state and a second state. When the guardrail structure is in the first state, the two side guardrails and the back guardrail both have a first position, so that the guardrail structure is blocked around the bearing space; when the guardrail structure is in the second state, at least one of the two side guardrails and the back guardrail can move to a second position in a direction close to or away from the vehicle frame, so that at least part of the bearing space is exposed.

[0008] In one embodiment, the bottom end of the back guardrail is connected to the frame, and one end of the side guardrail is rotatably connected to the frame and the other end is rotatably connected to the back guardrail, wherein:

[0009] When the guardrail structure is transformed into the second state, at least one of the side guardrails can move toward the direction close to the vehicle frame; and / or,

[0010] When the guardrail structure is in the second state, at least one of the side guardrails is located in the second position.

[0011] In one embodiment, at least one of the side guardrails includes a plurality of connecting rods, one end of the connecting rods is rotatably connected to the vehicle frame, and the other end is rotatably connected to the upper area of ​​the back guardrail, and the plurality of connecting rods can be rotatably adjusted.

[0012] In one embodiment, the plurality of connecting rods include a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are rotatably connected around a first axis via a rotating connection structure, the other end of the first connecting rod is rotatably connected to the backrest around a second axis, and the second connecting rod is rotatably connected to the frame around a third axis, wherein;

[0013] From the first position to the second position, the first shaft rotates toward the vehicle frame; and / or,

[0014] When the guardrail structure is in the first state or the second state, the back guardrail and the side guardrail are both in an upright state; and / or,

[0015] The guardrail structure also has a third state. In the third state, the guardrail structure is able to be folded close to the vehicle frame.

[0016] In one embodiment, the back guardrail is rotatably mounted on the frame about an axis extending in the first horizontal direction, and when the guardrail structure is in the first state, the two side guardrails are in the first position, and when the guardrail structure is in the second state, at least one side guardrail is in the second position, wherein:

[0017] The side guardrail in the first position and the side guardrail in the second position are symmetrical about a line connecting the second axis and the third axis; and / or,

[0018] When the guardrail structure is in the second state, one of the side guardrails is located in the first position, and the other side guardrail is located in the second position.

[0019] In one embodiment, the guardrail structure can be folded in either the first state or the second state;

[0020] When the guardrail structure is folded, the side guardrail can drive the back guardrail to move closer to the frame, so that the connection between the first link and the second link is close to the connection between the back guardrail and the frame, so that the first link and the second link can be folded between the frame and the back guardrail.

[0021] In one embodiment, the rotation connection structure includes two mounting seats that are rotatably arranged relative to each other in a first horizontal direction, and the two mounting seats are connected to one end of the first connecting rod and one end of the second connecting rod respectively;

[0022] The side guardrail also includes a locking member movably arranged between the two mounting seats. In its movable range, the locking member has a locking position and an unlocking position. In the locking position, the locking member cooperates with the two mounting seats to limit the rotation of the two mounting seats. In the unlocking position, the locking member is disengaged from at least one of the mounting seats to allow the two mounting seats to rotate relative to each other.

[0023] In one embodiment, a limited matching structure is provided between the locking member and each of the mounting seats, the limited matching structure comprising a limiting portion and a matching portion, one of the limiting portion and the matching portion being provided on the locking member, and the other being provided on the mounting seat, and a plurality of the limiting portion and / or the matching portion being provided along the circumference of the rotation axis of the mounting seat;

[0024] and / or, at least one of the mounting seats is provided with a driving member for driving the locking member to move between the locking position and the unlocking position; and / or,

[0025] And / or, at least one of the mounting seats is provided with an elastic member, and the elastic member is located between the corresponding mounting seat and the locking member, so as to reset the locking member to the locking position.

[0026] And / or, the locking member is movably arranged on one of the mounting seats along the first horizontal direction.

[0027] In one embodiment, the vehicle further comprises a seat member, which is movably disposed relative to the vehicle frame and is disposed between the two side guardrails, for supporting the guardrail structure when the side guardrails are in the raised position;

[0028] One end of the seat member is hinged to the side guardrail, and the other end is hinged to the back guardrail through a connecting rod.

[0029] In one embodiment, two guardrail structures are provided, and the two guardrail structures are spaced apart in the second horizontal direction;

[0030] Each of the guardrail structures has the first state and the second state; and / or,

[0031] The two guardrail structures are arranged opposite to each other, and a passage is formed between the two guardrail structures; and / or,

[0032] The vehicle frame includes a first bracket and a second bracket. The second bracket is rotatably mounted on the first bracket around an axis extending in a first horizontal direction. The first bracket and the second bracket are each provided with a guardrail structure.

[0033] In the technical solution of the present invention, when the vehicle needs to carry objects, the side guardrails move away from the frame to a first position, so that the side guardrails and the back guardrail can be supported on the frame approximately vertically, so that the guardrail structure is in a first state, so as to enclose the objects on the vehicle and reduce the probability of the objects falling. When it is necessary to load and unload objects, the side guardrails and / or the back guardrails move from the first position to a second position towards or away from the frame, so that the guardrail structure is in a second state, so as to lower the height of the guardrail structure, so as to form an opening on at least one side of the frame, so as to facilitate loading and unloading of objects. In this way, by providing a movable guardrail structure on the frame, the guardrail structure can be supported on the frame to enclose the objects on the frame and reduce the probability of the objects on the frame falling, and the guardrail structure can be adjusted so that the guardrail structure can form an opening, so as to facilitate loading and unloading of objects, thereby solving the problem of the existing guardrail structure being too high or too low. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0035] Figure 1 A first three-dimensional structural diagram of a first embodiment of the carrier provided by the present invention;

[0036] Figure 2 A first side structural schematic diagram of a first embodiment of the carrier provided by the present invention;

[0037] Figure 3 A second schematic perspective structural diagram of the first embodiment of the carrier provided by the present invention;

[0038] Figure 4 A second side structural schematic diagram of the first embodiment of the carrier provided by the present invention;

[0039] Figure 5 A third schematic perspective structural diagram of the first embodiment of the carrier provided by the present invention;

[0040] Figure 6 A third side structural schematic diagram of the first embodiment of the carrier provided by the present invention;

[0041] Figure 7 A fourth perspective structural diagram of the first embodiment of the carrier provided by the present invention;

[0042] Figure 8 A fourth side structural schematic diagram of the first embodiment of the carrier provided by the present invention;

[0043] Figure 9 A schematic diagram of a partial three-dimensional structure of a first embodiment of the carrier provided by the present invention;

[0044] Figure 10 for Figure 9 A partial enlarged view of point A in the middle;

[0045] Figure 11 for Figure 9 A partial enlarged view of point B in the middle;

[0046] Figure 12 A partial side structural diagram of a first embodiment of the carrier provided by the present invention;

[0047] Figure 13 for Figure 12 A partial enlarged view of point C in the middle;

[0048] Figure 14 Schematic diagram of the three-dimensional structure of the first connecting rod;

[0049] Figure 15 for Figure 14 A partial enlarged view of point D in the middle;

[0050] Figure 16 for Figure 14 A partial enlarged view of point E in the middle;

[0051] Figure 17 A schematic diagram of a partial three-dimensional structure of a frame of a first embodiment of the vehicle provided by the present invention;

[0052] Figure 18 for Figure 17 A partial enlarged view of point F in the middle;

[0053] Figure 19 A first three-dimensional structural diagram of a second embodiment of the carrier provided by the present invention;

[0054] Figure 20 A first side structural schematic diagram of a second embodiment of the carrier provided by the present invention;

[0055] Figure 21 A second three-dimensional structural diagram of a second embodiment of the carrier provided by the present invention;

[0056] Figure 22 A second side structural schematic diagram of the second embodiment of the carrier provided by the present invention;

[0057] Figure 23 A third schematic perspective structural diagram of the second embodiment of the carrier provided by the present invention;

[0058] Figure 24A third side structural schematic diagram of the second embodiment of the carrier provided by the present invention;

[0059] Figure 25 A fourth three-dimensional structural diagram of the second embodiment of the carrier provided by the present invention;

[0060] Figure 26 A fourth side structural schematic diagram of the second embodiment of the carrier provided by the present invention;

[0061] Figure 27 A fifth perspective structural diagram of the second embodiment of the carrier provided by the present invention;

[0062] Figure 28 This is a fifth side structural schematic diagram of the second embodiment of the carrier provided by the present invention.

[0063] Description of Figure Numbers:

[0064] 100. Vehicle;

[0065] 1. Frame; 11. Carrying space; 111. First side; 112. Second side; 12. Carrying member; 13. First bracket; 14. Second bracket;

[0066] 2. Guardrail structure; 21. Side guardrail; 211. First connecting rod; 212. Second connecting rod; 213. Connecting rod; 22. Back guardrail; 231. Locking member; 2311. Annular groove; 232. Driving member; 24. Rotational connection structure; 241. Mounting seat; 2411. Mounting boss; 242. Limiting member; 25. Rotational limiting structure; 251. Limiting rib; 252. Limiting groove;

[0067] 3. Seat; 4. Tie rod assembly; 41. Sleeve; 42. Tie rod; 5. Aisle;

[0068] 6. Rotational positioning structure; 61. Positioning seat; 7. Rolling portion; 71. First wheel; 72. Second wheel.

[0069] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0071] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0072] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0073] Currently, push-pull powered vehicles on the market, such as carts and trailers, are often equipped with guardrails to prevent items from falling off the vehicle. To facilitate daily storage and carrying, the guardrails are often designed to be reversible. However, this reversible structure only folds the guardrails, without adjusting the guardrail structure. The guardrail's dimensions remain unchanged before and after reversing, resulting in the guardrail being too high or too low. A guardrail that is too high makes it difficult to load and unload items, while a guardrail that is too low poses a risk of items falling off the vehicle.

[0074] Based on this, the present invention proposes a vehicle. It aims to solve the problem that the existing guardrail structure is too high or too low. Figures 1 to 28 This is a schematic structural diagram of the vehicle provided by the present invention.

[0075] See also Figures 1 to 8In one embodiment of the present invention, the vehicle 100 includes a frame 1 and at least one guardrail structure 2, which has at least one carrying space 11 thereon, the carrying space 11 having two first side edges 111 opposite to each other in a first horizontal direction and extending along a second horizontal direction, and two second side edges 112 opposite to each other in a second horizontal direction and extending along the first horizontal direction, the guardrail structure 2 is arranged corresponding to the carrying space 11, the guardrail structure 2 includes two side guardrails 21 corresponding to the two first side edges 111, and a back guardrail 22 arranged corresponding to the second side edge 112, the guardrail structure 2 has a first state and a second state, when the guardrail structure 2 is in the first state, the two side guardrails 21 and the back guardrail 22 both have a first position, so that the guardrail structure 2 is blocked around the carrying space 11; when the guardrail structure 2 is in the second state, at least one of the two side guardrails and the back guardrail can move to a second position in a direction close to or away from the frame, so that at least part of the carrying space is exposed.

[0076] It is understood that the frame 1 is mainly used to bear the load and needs to have a certain hardness and strength. It can be made of a variety of materials. Specifically, the frame 1 can be made of metal materials such as iron and aluminum, or alloy materials such as steel and aluminum alloy, or inorganic non-metallic materials such as ceramics. The present invention does not limit this. In particular, the bearing space 11 refers to the space enclosed by the frame 1 and the guardrail structure 2. Figure 1 and Figure 2 As shown, at this time, the two side guardrails 21 and the back guardrail 22 are substantially perpendicularly arranged on the frame 1, and the two side guardrails are symmetrically arranged to form a bearing space 11 on the frame 1 with the back guardrail 22. Further, the guardrail structure 2 has a first state and a second state, wherein, when the guardrail structure 2 is in the first state, please refer to Figure 1 and Figure 2 , both side guardrails 21 and back guardrail 22 are in the first position. At this time, the guardrail structure 2 stands upright on the frame 1. The side guardrails 21 and back guardrail 22 are arranged substantially vertically on the frame to form a carrying space 11 with the frame 1, so that the guardrail structure 2 can protect the items in the carrying space 11 and reduce the risk of items falling. When the guardrail structure 2 is in the second state, please refer to Figures 3 to 6 , the two side guardrails 21 and the back guardrail 22 are in the second position. At this time, the height of at least one of the two side guardrails 21 and the back guardrail can be lowered to form an opening on at least one side of the guardrail structure 2, thereby facilitating loading and unloading of items from one side of the vehicle frame. Of course, when loading and unloading items, the height of both side guardrails 21 can be lowered at the same time, or the height of one side guardrail 21 can be lowered. Figure 5 and Figure 6 As shown, the height of the back guardrail 22 can also be lowered, and the present invention is not limited to this. In addition, a rolling portion 7 is provided at the bottom of the frame 1 to enable the carrier 100 to move.

[0077] It should be noted that there are various types of first horizontal directions and second horizontal directions. For example, one of the first horizontal direction and the second horizontal direction may be the width direction of the frame 1 and the other may be the length direction of the frame 1. The present invention is not limited to this. For example, the first horizontal direction is the width direction of the frame 1 and the second horizontal direction is the length direction of the frame 1.

[0078] In the technical solution of the present invention, when the vehicle 100 needs to carry objects, the side guardrail 21 moves to the first position away from the frame 1, so that the side guardrail 21 and the back guardrail 22 can be arranged roughly vertically on the frame 1, so that the guardrail structure 2 is in the first state, so as to enclose the objects on the vehicle 100 and reduce the probability of objects falling. When objects need to be loaded and unloaded, the side guardrail 21 and / or the back guardrail moves from the first position toward or away from the frame 1 to the second position, so that the guardrail structure 2 is in the second state, so as to lower the height of the guardrail structure 2, so as to form an opening on at least one side of the frame 1 to facilitate loading and unloading of objects. In this way, by arranging a movable guardrail structure 2 on the frame 1, it is possible to enclose the objects on the frame 1 and reduce the probability of objects on the frame 1 falling, and the guardrail structure 2 can be adjusted so that the guardrail structure 2 can form a protective range of different sizes to facilitate loading and unloading of objects, thereby solving the problem of the existing guardrail structure 2 being too high or too low.

[0079] Furthermore, in order to adjust the guardrail structure 2, the bottom end of the back guardrail 22 is connected to the frame 1, and one end of the side guardrail 21 is rotatably connected to the frame 1, and the other end is rotatably connected to the back guardrail 22. When the guardrail structure 2 is converted to the second state, at least one side guardrail 21 can move toward the direction close to the frame 1. In this way, when the guardrail structure 2 switches from the first state to the second state, one side guardrail 21 moves downward toward the direction close to the frame 1 so that the size of the side guardrail 21 can be adjusted, thereby facilitating the taking and placing of items.

[0080] It is understandable that there are various structures for adjusting the guardrail structure 2. In other embodiments, the side guardrail 21 includes two side rods hinged in the middle, and the lower ends of the two side rods are slidably set on the frame. In this way, the side guardrail can be adjusted by sliding the two side rods, thereby facilitating the taking and placing of items.

[0081] In one embodiment of the present invention, when the guardrail structure 2 is in the second state, at least one side guardrail 21 is in the second position. Thus, by placing the side guardrail 21 in the second position, the height of the side guardrail is lowered, thereby facilitating the taking and placing of items. It should be understood that at least one side guardrail 21 being in the second position may mean that one side guardrail 21 is in the second position, or both side guardrails 21 are in the second position, and this is not limited in the present invention.

[0082] It should be noted that the above two related technical features: "When the guardrail structure 2 is converted to the second state, at least one side guardrail 21 can move toward the direction close to the frame 1" and "When the guardrail structure 2 is in the second state, at least one side guardrail 21 is located in the second position" can be set selectively or simultaneously, and the present invention does not limit this.

[0083] In one embodiment of the present invention, see Figure 3 and Figure 4 At least one side guardrail 21 includes multiple connecting rods, one end of the multiple connecting rods is rotatably connected to the frame 1, and the other end is rotatably connected to the upper area of ​​the back guardrail 22. The multiple connecting rods can be rotatably adjusted. In this way, the multiple connecting rods are adjustable so that the positions of the multiple connections can be continuously adjusted, so that the size of the side guardrail can be continuously adjusted, so that the guardrail structure 2 can form a protective range of different sizes.

[0084] Furthermore, the number of links in the side guardrail 21 can be two or three, etc., and the present invention does not limit this. Specifically, in one embodiment of the present invention, the multiple links include a first link 211 and a second link 212, and the first link 211 and the second link 212 are rotatably connected around a first axis through a rotating connection structure 24. The other end of the first link 211 is rotatably connected to the frame 1 around a second axis, and the second link 212 is rotatably connected to the back guardrail around a third axis. From the first position to the second position, the first axis rotates toward the direction close to the frame 1. In this way, the first link 211 and the second link 212 can be rotatably connected by the rotating connection structure 24, and when the side guardrail 21 switches from the first position to the second position, the first axis can rotate toward the direction close to the frame 1 to lower the height of the side guardrail 21, so that the guardrail structure 2 can form an opening on one side of the first horizontal direction to facilitate the taking and placing of items.

[0085] In one embodiment of the present invention, see Figures 5 to 8 When the guardrail structure 2 is in the first state or the second state, the back guardrail 22 and the side guardrail 21 are both in an upright state, so that the guardrail structure 2 can be erected on the peripheral side of the load-bearing space 11 of the frame 1, so that the guardrail structure 2 can enclose the items in the load-bearing space of the frame 1 to reduce the risk of items falling.

[0086] In one embodiment of the present invention, see Figures 23 to 24 The guardrail structure 2 also has a third state. In the third state, the guardrail structure 2 can be folded close to the frame 1, so that the side guardrails 21 and the back guardrail 22 are both folded in the frame 1, thereby facilitating storage.

[0087] It should be noted that the above three related technical features: "From the first position to the second position, the first axis rotates toward the direction close to the frame 1", "When the guardrail structure 2 is in the first state or the second state, the back guardrail 22 and the side guardrail 21 are both in the upright state", and "The guardrail structure 2 also has a third state. In the third state, the guardrail structure 2 can be folded to be close to the frame 1". One or both of the settings can be selected or set at the same time, and the present invention does not limit this.

[0088] In one embodiment of the present invention, see Figures 5 to 8 The back guardrail 22 is rotatably mounted on the vehicle frame 1 around an axis extending in the first horizontal direction, and when the guardrail structure 2 is in the first state, the two side guardrails 21 are in the first position, and when the guardrail structure 2 is in the second state, at least one side guardrail 21 is in the second position, and the side guardrails 21 in the first position are symmetrical with the side guardrails 21 in the second position about the line connecting the second axis and the third axis, so that the guardrail structure 2 can form an opening to facilitate loading and unloading of articles while keeping the position of the back guardrail 22 unchanged.

[0089] In one embodiment of the present invention, see Figures 7 and 8 The back guardrail 22 is rotatably mounted on the vehicle frame 1 around an axis extending in the first horizontal direction. When the guardrail structure 2 is in the first state, the two side guardrails 21 are symmetrically arranged. When the guardrail structure 2 is in the second state, one of the side guardrails 21 is in the first position and the other side guardrail 21 is in the second position. In this way, when the guardrail structure 2 is in the first state, the two side guardrails 21 are in the first position, so that the guardrail structure 2 is erected on the peripheral side of the bearing space 11 of the vehicle frame 1 to enclose the items on the vehicle frame 1. When the guardrail structure 2 is in the second state, the two side guardrails 21 are respectively in the first position and the second position to form an opening on one side of the vehicle frame 1, so as to maintain the height of one side of the vehicle frame 1 while lowering the height of the other side of the vehicle frame 1, thereby maintaining the enclosing range of the guardrail structure 2 and facilitating the taking and placing of items.

[0090] It should be noted that the above two related technical features: "The side guardrail 21 in the first position and the side guardrail 21 in the second position are symmetrical about the line connecting the second axis and the third axis" and "When the guardrail structure 2 is in the second state, one of the side guardrails 21 is in the first position and the other side guardrail 21 is in the second position" can be set selectively or simultaneously, and the present invention does not limit this.

[0091] In one embodiment of the present invention, see Figure 3 、 Figure 4 、 Figure 21 and Figure 22The back guardrail 22 is rotatably mounted on the vehicle frame 1 around an axis extending in the first horizontal direction, and when the guardrail structure 2 is in the first state, the two side guardrails 21 are symmetrically arranged, and when the guardrail structure 2 is in the second state, the two side guardrails 21 are symmetrically arranged. In this way, when the guardrail structure 2 is in the first state, the two side guardrails 21 are in the first position, so that the guardrail structure 2 is erected on the peripheral side of the bearing space 11 of the vehicle frame 1 to enclose the items on the vehicle frame 1. When the guardrail structure 2 is in the second state, the two side guardrails 21 are in the second position, so that the two side guardrails 21 are symmetrically arranged on the back guardrail side, so that the two side guardrails 21 of the two 22 can switch states synchronously to form openings on both sides of the vehicle frame 1, so as to simultaneously lower the height of both sides of the vehicle frame 1, thereby facilitating the taking and placing of items from both sides of the vehicle frame 1.

[0092] In one embodiment of the present invention, see Figures 5 to 8 When the guardrail structure 2 is folded, the side guardrail 21 can drive the back guardrail 22 to move closer to the frame 1, so that the connection between the first link 211 and the second link 212 is close to the connection between the back guardrail 22 and the frame 1, so that the first link 211 and the second link 212 can be folded between the frame 1 and the back guardrail 22. In this way, the first link 211, the second link 212, the back guardrail 22 and the frame 1 form a four-link structure, so that the back guardrail 22 and the side guardrail can be linked. At the same time, the connection between the first link 211 and the second link 212 is close to the connection between the back guardrail 22 and the frame, so that the first link 211 and the second link 212 can be folded between the back guardrail 22 and the frame 1, which can reduce the space occupied by the guardrail structure 2 on the frame 1, thereby helping to reduce the size of the vehicle 100 after folding and facilitating storage.

[0093] Further, see Figures 9 to 11 The rotating connection structure 24 includes two mounting seats 241 that are relatively and rotatably arranged in a first horizontal direction. The two mounting seats 241 are correspondingly connected to one end of the first connecting rod 211 and the second connecting rod 212. The side guardrail 21 also includes a locking member 231 movably arranged between the two mounting seats 241. In its movable stroke, the locking member 231 has a locking position and an unlocking position. In the locking position, the locking member 231 cooperates with the two mounting seats 241 to limit the rotation of the two mounting seats 241. In the unlocking position, the locking member 231 is released from cooperation with at least one of the mounting seats 241, so that the two mounting seats 241 can rotate relative to each other.

[0094] When the first link 211 and the second link 212 need to be locked, the locking member 231 moves to the locking member 231 position. At this time, the locking member 231 moves between the two mounting seats 241 to limit the rotation of the two mounting seats 241, thereby locking the first link 211 and the second link 212. When the first link 211 and the second link 212 need to be rotated, the locking member 231 moves to the unlocking position. At this time, the locking member 231 is separated from one of the mounting seats 241 to release the rotation restriction of the two mounting seats 241, so that the first link 211 and the second link 212 can rotate relative to each other. In this way, by providing the mounting seats 241 and the locking member 231 that cooperate with each other, the locking member 231 can not only limit the rotation of the two mounting seats 241 to prevent the two mounting seats 241 from rotating relative to each other, but also release the rotation restriction of the two mounting seats 241, so that the first link 211 and the second link 212 can rotate relative to each other, thereby enabling the support structure 2 to switch between the folded state and the unfolded state. Furthermore, the locking member 231 is movably arranged on one of the mounting seats 241 along the first horizontal direction, so that the moving direction of the locking member 231 is consistent with the rotation axis of the first connecting rod 211 or the second connecting rod 212, thereby facilitating the switching of the locking member 231 between the locked position and the unlocked position.

[0095] In one embodiment of the present invention, see Figures 9 to 13 A limited matching structure is set between the locking piece 231 and each mounting seat 241, and the limited matching structure includes a limiting portion 242 and a matching portion. One of the limiting portion 242 and the matching portion is set on the locking piece 231, and the other is set on the mounting seat 241, and the limiting portion 242 and / or the matching portion are set to multiple along the circumference of the rotating shaft of the mounting seat 241. In this way, by setting the limiting portion 242 and the matching portion that match each other, after the two mounting seats 241 are rotated to the corresponding positions, the two mounting seats 241 are locked to limit the relative rotation of the two mounting seats 241, so that the support structure 2 can maintain the current state.

[0096] It should be noted that in order to be able to lock the two mounting seats 241 at different angles so that the rotation angles of the first connecting rod 211 and the second connecting rod 212 are adjustable, there are multiple ways to set the limiting portion 242 and the matching portion. It can be that multiple ones are set for one of them and one is set for the other, or multiple ones are set for both, so that one of the limiting portion 242 and the matching portion can be selected to match the other one with a different setting, so that the two mounting seats 241 can be locked at different angles.

[0097] It should also be noted that there are multiple ways for the locking member 231 to lock the two mounting seats 241. In another embodiment, each mounting seat 241 is provided with a through hole, and the locking member 231 includes a locking pin movably installed on one of the mounting seats 241 along the first horizontal direction. When the locking pin is in the locked position, the locking pin can be inserted into the two through holes of the two mounting seats 241 to limit the rotation of the two mounting seats. When the locking pin is in the unlocked position, the locking pin is separated from at least one of the through holes to release the rotation restriction of the two mounting seats 241, so that the first link 211 and the second link 212 can rotate relative to each other. In this way, by providing mutually cooperating locking holes and locking pins, the rotation of the two mounting seats 241 can be restricted to prevent the two mounting seats 241 from rotating relative to each other, and the rotation restriction of the two mounting seats 241 can be released, so that the first link 211 and the second link 212 can rotate relative to each other, thereby enabling the support structure 2 to switch between a folded state and an unfolded state.

[0098] In one embodiment of the present invention, see Figure 14 and Figure 15 In the limiting portion 242 and the matching portion, one of them is a limiting protrusion and the other is a matching groove. Thus, by providing the limiting protrusion and the matching groove that cooperate with each other, the rotation between the locking member 231 and the mounting seat 241 is limited. It is understood that there are many types of limiting matching structures. In other embodiments, the limiting matching structure can also be limited by a magnetic connection structure, etc., and the present invention is not limited to this.

[0099] To drive the locking member 231, see Figures 12 to 13 In one embodiment of the present invention, at least one of the mounting seats 241 is provided with a driving member 232 for driving the locking member 231 to move between a locked position and an unlocked position. Thus, by providing the driving member 232 to drive the locking member 231 to move, the locking member 231 can be switched between the locked position and the unlocked position. Furthermore, the driving member 232 can be of various types, such as a button or a cylinder, and the present invention is not limited thereto. Specifically, in this embodiment, the driving member 232 is a driving button, so that the user can manually operate the locking member 231 to move, which helps reduce both the weight and the cost of the support structure 2. It is understandable that the driving member 232 can be made of various materials, such as metal materials such as iron and steel, inorganic non-metallic materials such as ceramics, and polymer materials such as plastic, and the present invention is not limited thereto.

[0100] In one embodiment of the present invention, at least one of the mounting seats 241 is provided with an elastic member. The elastic member is positioned between the corresponding mounting seat 241 and the locking member 231 to reset the locking member 231 to the locked position. The provision of the elastic member allows the locking member 231 to remain in the locked position, thereby reducing the frequency of operation of the locking member 231 and improving the user experience. It is understood that the elastic member can be a spring, rubber, or the like, and this is not limited in the present invention. Furthermore, the locking member 231 is provided with an annular groove 2311 for mounting the elastic member.

[0101] It should be noted that the above three related technical features: "A limited matching structure is provided between the locking member 231 and each mounting seat 241", "At least one of the mounting seats 241 is provided with a driving member 232", and "At least one of the mounting seats 241 is provided with an elastic member" can be set one by one, two by two, or at the same time. Obviously, setting them at the same time will have a better effect.

[0102] In order to connect the two mounting bases 241, in this embodiment, refer to Figures 13 to 15 Each mounting seat 241 is provided with a through-hole, and the side panel assembly further includes a connector inserted into the two through-holes to connect the two mounting seats 241. Thus, by providing the through-holes and the connector, the two mounting seats 241 can be connected. Furthermore, a mounting boss 2411 extending along the first horizontal direction is provided in the middle portion of each mounting seat 241. The through-hole is provided in the mounting boss 2411. Thus, when the two mounting seats 241 are connected, the two mounting bosses 2411 abut, connecting the two through-holes to facilitate the insertion of the connector. The locking member 231 is sleeved on the mounting boss 2411. Furthermore, the locking member 231 can be rotatably mounted on the mounting boss 2411, or can be non-rotatably mounted on the mounting boss 2411. The present invention does not limit this. Specifically, in this embodiment, the locking member 231 is non-rotatably mounted on the mounting boss 2411 to limit the rotation of the locking member 231 and the mounting boss 2411, thereby helping to improve the locking effect of the locking member 231.

[0103] In one embodiment of the present invention, please refer to Figures 19 to 28 The vehicle 100 also includes a supporting member 3, which can be movably arranged between the two side guardrails 21 relative to the frame 1, and is used to support the guardrail structure 2 when the side guardrail 21 is in the first state. When the side guardrail 21 is in the first state, the supporting member 3 can be supported on the guardrail structure 2, so that the vehicle 100 can be used to carry people. When the side guardrail 21 is moved to the folded position, the height of the side guardrail 21 can be lowered to facilitate passengers to get on and off from the side of the frame. In this way, by providing the supporting member 3, the vehicle 100 is used to carry people, and the movement of the side guardrail 21 allows passengers to get on and off, which helps to improve the user experience of the vehicle.

[0104] It is understood that the support member 3 is provided so that when the support structure 2 is supported on the frame 1, the support member 3 can be combined with the support structure 2 to form a seat on the frame 1, thereby facilitating passengers to sit. This is the second embodiment of the vehicle 100. Figures 19 to 28 Furthermore, the seat member 3 can be made of a variety of materials, such as metal materials such as iron and aluminum, alloy materials such as steel and aluminum alloy, and inorganic non-metallic materials such as ceramics, as long as they can meet the strength requirements. The present invention does not limit this.

[0105] To mount the bearing member 3 on the vehicle frame 1, in one embodiment of the present invention, a plurality of connecting rods includes a first connecting rod 211 and a second connecting rod 212. One end of the bearing member 3 is hinged to the side guardrail 21, and the other end is hinged to the back guardrail 22 via a connecting rod 213. In this manner, when the guardrail structure 2 is in a first state and the side guardrail 21 is in a first position, the bearing member 3 can be supported on the guardrail structure 2 to facilitate passenger transportation. When the guardrail structure 2 is in a third state and the side guardrail 21 and back guardrail 22 are folded onto the vehicle frame 1, the bearing member 3 can be horizontally positioned on the vehicle frame 1 to facilitate cargo transportation. It is understood that the bearing member 3 can be a bearing plate, a bearing frame, or the like, and the present invention is not limited thereto.

[0106] Furthermore, when the side guardrail 21 is in the upright position, the intersection of the support member 3 and the connecting rod 213 is located on the inner side of the first connecting rod 211. In this way, when the support member 3 is carrying a person, the end of the connecting rod 213 facing away from the frame 1 can be rotated downward, so that the guardrail structure 2 can support the support member 3.

[0107] In one embodiment of the present invention, when the side guardrails 21 are in the upright position, the support members 3 are supported obliquely on the guardrail structure 2, allowing the occupant to lean back toward the back guardrail 22 and rest against the back guardrail 22 to prevent the occupant from falling. Of course, in other embodiments, the support members 3 may also be arranged horizontally, and the present invention is not limited thereto.

[0108] In one embodiment of the present invention, see Figure 14 、 Figure 16 、 Figure 17 and Figure 18 The multiple connecting rods include a first connecting rod 211, and the first connecting rod 211 is connected to the frame 1 through a rotation limiting structure 25. The rotation limiting structure 25 includes a limiting rib 251 and a limiting groove 252 respectively provided on the frame 1 and the frame 1. The limiting groove 252 extends along its circumference. The limiting rib 251 cooperates with the limiting groove 252 to limit the active stroke of the first connecting rod 211 and prevent the first connecting rod 211 from flipping outward.

[0109] In one embodiment of the present invention, the vehicle 100 also includes a pull rod assembly 4, which includes a sleeve 41 and a pull rod 42. The sleeve 41 is provided on the frame 1, and the pull rod 42 is movably installed on the sleeve 41 along the axial direction of the sleeve 41. When the vehicle 100 needs to be towed, the pull rod 42 is pulled out of the sleeve 41 so that personnel or a towing mechanism can tow the vehicle 100. When the vehicle 100 does not need to be towed, the pull rod 42 is hidden in the sleeve 41 to avoid collision, which helps to increase the safety of the vehicle 100. In this way, by providing the sleeve 41 to accommodate the pull rod 42 and through the movement of the pull rod 42, it is convenient to tow the vehicle 100, increase the safety of the vehicle 100, and improve the appearance of the vehicle 100.

[0110] It should be noted that the sleeve 41 and the pull rod 42 can have various shapes, for example, they can be cylindrical structures or prismatic structures, etc., and the present invention does not limit this. Furthermore, the sleeve 41 and the pull rod 42 can be made of various materials, such as metal materials such as iron and aluminum, alloy materials such as steel and aluminum alloy, and inorganic non-metallic materials such as ceramics, and the present invention does not limit this.

[0111] Furthermore, the sleeve 41 can be fixedly installed on the frame 1 or movably installed on the frame 1, etc., and the present invention does not limit this. However, for different personnel or traction mechanisms, its height will also be different, resulting in different inclination angles of the pull rod 42. For this reason, in this embodiment, the sleeve 41 is rotatably installed on the frame 1 around an axis extending in the first horizontal direction. In this way, the sleeve 41 adopts a rotatable setting so that the inclination angle of the pull rod 42 can be adapted to the traction height of the personnel or traction mechanism, thereby facilitating the personnel or traction mechanism to tow the vehicle 100.

[0112] In one embodiment of the present invention, a carrier 12 is provided within the vehicle frame 1. Thus, by providing the carrier 12, the vehicle 100 can be used to carry both people and items. It is understood that the carrier 12 can be a carrier plate, a carrier cloth, a carrier frame, or the like, as long as it can carry items, and the present invention is not limited thereto.

[0113] In one embodiment of the present invention, the back guardrail 22 is rotatably mounted on the vehicle frame 1 around an axis extending in a first horizontal direction to form a three-link structure with the side guardrails 21, so that the back guardrail 22 can move synchronously with the multiple links of the side guardrails 21, so that the guardrail structure 2 can move away from the vehicle frame 1 to stand up on the vehicle frame 1 to form an enclosure structure on the vehicle frame 1, and can also move toward the vehicle frame 1 to fold on the vehicle frame 1 for storage.

[0114] In one embodiment of the present invention, two guardrail structures 2 are provided, and the two guardrail structures 2 are spaced apart in the second horizontal direction. Each guardrail structure 2 has a first state and a second state. In this way, by providing two guardrail structures 2 with a first state and a second state, the enclosure space on the frame 1 can be increased so that the vehicle 10 can carry more items, and the guardrail can be prevented from being too high, making it convenient to take and put items.

[0115] In one embodiment of the present invention, two guardrail structures 2 are provided, and the two guardrail structures 2 are arranged opposite to each other, and an aisle is formed between the two guardrail structures 2. On the one hand, the two guardrail structures 2 can be docked to form a larger enclosure so as to accommodate larger items. On the other hand, an aisle 5 is formed so that people can get on and off from the middle of the two guardrail structures 2, so that the upper and lower spaces of the two guardrail structures 2 can be shared, thereby reducing the length of the frame 1 and helping to improve the space utilization of the frame 1. Furthermore, the shape of the aisle 5 can be various. For example, the aisle 5 can be arranged with equal width upwards, or it can be arranged to expand gradually upwards. The present invention does not limit this. However, since the width of the passengers increases as the aisle goes upwards, the aisle 5 is arranged to expand gradually upwards so that the shape of the aisle 5 can adapt to the body shape of the passengers, thereby facilitating passengers to get on and off.

[0116] It should be noted that there are many ways to set up the two guardrail structures 2. In another embodiment, the two guardrail structures 2 are set in the same direction and at intervals on the second horizontal direction so that the two guardrail structures 2 have the same orientation. However, this setting makes it impossible for the two guardrail structures 2 to be connected to form a larger enclosure, which is not conducive to loading larger items.

[0117] In one embodiment of the present invention, the frame 1 includes a first bracket 13 and a second bracket 14, and the second bracket 14 is rotatably mounted on the first bracket 13 around an axis extending in a first horizontal direction. Within its movable range, the second bracket 14 has the function of rotating to a storage position close to the first bracket 13, and rotating to a load-bearing position for carrying the seat assembly, wherein the two guardrail structures 2 are respectively provided on the first bracket 13 and the second bracket 14. When the frame 1 is in the load-bearing position, the first bracket 13 is flush with the second bracket 14, so that the frame 1 is in a horizontal state to support the two guardrail structures 2. When the frame 1 is in the storage position, the first bracket 13 is close to the second bracket 14, so that the frame 1 is in a folded state for storage or transportation. In this way, through the rotation of the second bracket 14, the frame 1 can support the two guardrail structures 2 and can also be folded for convenient storage or transportation.

[0118] It should also be noted that the above two related technical features: "Each guardrail structure 2 has a first state and a second state", "The two guardrail structures 2 are arranged opposite to each other, and an aisle 5 is formed between the two guardrail structures 2", and "The frame includes a first bracket 13 and a second bracket 14, and the second bracket 14 is rotatably installed on the first bracket 13 around an axis extending in the first horizontal direction. The first bracket 13 and the second bracket 14 are each provided with a guardrail structure 2". You can choose one of them or set them simultaneously, and the present invention does not limit this.

[0119] In one embodiment of the present invention, see Figure 17 The first bracket 13 and the second bracket 14 are rotatably connected through a rotating positioning structure 6. The rotating positioning structure 6 includes two positioning seats 61 that are relatively and rotatably arranged in a first direction, and a positioning member arranged between the two positioning seats 61. The two positioning seats 61 are connected to one end of the first bracket 13 and the second bracket 14 respectively. The positioning member is movably arranged and has a positioning position and an avoidance position within its movable stroke. When in the positioning position, the positioning member cooperates with the two positioning seats 61 to limit the rotation of the two positioning seats 61. When in the avoidance position, the positioning member is released from cooperation with at least one of the positioning seats 61 so that the two positioning seats 61 can rotate relative to each other.

[0120] In one embodiment of the present invention, the rolling portion 7 includes two first wheels 71 arranged on the frame 1 at intervals along the first horizontal direction, and two second wheels 72 arranged on the frame 1 at intervals along the first horizontal direction. The first wheels 71 and the second wheels 72 are arranged at intervals along the second horizontal direction. The diameter of the first wheel 71 is smaller than the radius of the second wheel 72, and the width between the two first wheels 71 is smaller than the width between the two second wheels 72. In this way, by arranging the two first wheels 71 and the two second wheels 72, the frame 1 can be stably supported. At the same time, the width between the two first wheels 71 is smaller than the width between the two second wheels 72, so that when the frame 1 is folded, the two first wheels 71 can be located between the two second wheels 72. The diameter of the first wheel 71 is smaller than the radius of the second wheel 72, so that the height of the two second wheels 72 can be borrowed so that the two first wheels 71 can be hidden in the two second wheels 72, which can improve the space utilization of the wheels and reduce the space occupied by the wheels, thereby helping to reduce the size of the vehicle 100.

[0121] Furthermore, there are various ways to connect the first wheel 71 to the frame 1. The first wheel 71 can be fixedly mounted on the frame 1 or detachably mounted on the frame 1, etc., and the present invention is not limited to this. Similarly, there are various ways to connect the second wheel 72 to the frame 1. The second wheel 72 can be fixedly mounted on the frame 1 or detachably mounted on the frame 1, etc., and the present invention is not limited to this. Specifically, in this embodiment, the first wheel 71 and / or the second wheel 72 are detachably mounted on the frame 1. In this way, the detachable structure facilitates loading and unloading, so that wheels of different specifications can be replaced as needed.

[0122] There are many types of vehicles 100. Specifically, in this embodiment, the vehicle 100 includes a child trailer or a child stroller. It can be understood that the child trailer or child stroller can be a stroller or trailer that can be driven by a child, or a stroller or trailer that can be provided for a child to ride in, etc. The present invention does not limit this.

[0123] The above are merely exemplary embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's description and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A vehicle, characterized in that: include: A vehicle frame having at least one carrying space thereon, wherein the carrying space has two first sides opposite to each other in a first horizontal direction and extending along a second horizontal direction, and two second sides opposite to each other in the second horizontal direction and extending along the first horizontal direction; as well as, At least one guardrail structure is provided corresponding to the bearing space, the guardrail structure comprising two side guardrails corresponding to the two first side edges, and a back guardrail provided corresponding to the second side edge; The guardrail structure has a first state and a second state. When the guardrail structure is in the first state, the two side guardrails and the back guardrail both have a first position, so that the guardrail structure is blocked on the side of the load-bearing space; when the guardrail structure is in the second state, at least one of the two side guardrails and the back guardrail can move to a second position in a direction close to or away from the frame, so that at least part of the load-bearing space is exposed.

2. The carrier according to claim 1, characterized in that The bottom end of the back guardrail is connected to the frame, and one end of the side guardrail is rotatably connected to the frame, and the other end is rotatably connected to the back guardrail, wherein: When the guardrail structure is transformed into the second state, at least one of the side guardrails can move toward the direction close to the vehicle frame; and / or, When the guardrail structure is in the second state, at least one of the side guardrails is located in the second position.

3. The carrier according to claim 2, characterized in that At least one of the side guardrails includes a plurality of connecting rods, one end of which is rotatably connected to the vehicle frame, and the other end is rotatably connected to the upper area of ​​the back guardrail, and the plurality of connecting rods can be rotatably adjusted.

4. The carrier according to claim 3, wherein: The plurality of links include a first link and a second link, the first link and the second link being rotatably connected around a first axis via a rotating connection structure, the other end of the first link being rotatably connected to the vehicle frame around a second axis, and the second link being rotatably connected to the back guardrail around a third axis, wherein: From the first position to the second position, the first shaft rotates toward the vehicle frame; and / or, When the guardrail structure is in the first state or the second state, the back guardrail and the side guardrail are both in an upright state; and / or, The guardrail structure also has a third state. In the third state, the guardrail structure can be folded close to the vehicle frame.

5. The carrier according to claim 4, wherein: The back guardrail is rotatably mounted on the vehicle frame around an axis extending in the first horizontal direction. When the guardrail structure is in the first state, the two side guardrails are in the first position. When the guardrail structure is in the second state, at least one side guardrail is in the second position. The side guardrail in the first position and the side guardrail in the second position are symmetrical about a line connecting the second axis and the third axis; and / or, When the guardrail structure is in the second state, one of the side guardrails is located in the first position, and the other side guardrail is located in the second position.

6. The carrier according to claim 4, wherein: In the first state or the second state, the guardrail structure can be folded; When the guardrail structure is folded, the side guardrail can drive the back guardrail to move closer to the frame, so that the connection between the first link and the second link is close to the connection between the back guardrail and the frame, so that the first link and the second link can be folded between the frame and the back guardrail.

7. The carrier according to claim 4, characterized in that: The rotating connection structure includes two mounting seats that are arranged opposite to each other and rotated in a first horizontal direction, and the two mounting seats are correspondingly connected to one end of the first connecting rod and the second connecting rod; The side guardrail also includes a locking member movably arranged between the two mounting seats. In its movable range, the locking member has a locking position and an unlocking position. In the locking position, the locking member cooperates with the two mounting seats to limit the rotation of the two mounting seats. In the unlocking position, the locking member is disengaged from at least one of the mounting seats to allow the two mounting seats to rotate relative to each other.

8. The carrier according to claim 7, wherein: A limited matching structure is provided between the locking member and the mounting seat, the limited matching structure comprising a limiting portion and a matching portion, one of the limiting portion and the matching portion being provided on the locking member, and the other being provided on the mounting seat, and a plurality of the limiting portion and / or the matching portion being provided along the circumference of the rotating shaft of the mounting seat; And / or, at least one of the mounting seats is provided with a driving member for driving the locking member to move between the locking position and the unlocking position; And / or, at least one of the mounting seats is provided with an elastic member, the elastic member being located between the corresponding mounting seat and the locking member, for resetting the locking member to the locking position; And / or, the locking member is movably arranged on one of the mounting seats along the first horizontal direction.

9. The carrier according to claim 1, wherein: The vehicle further includes a support member, which is movably disposed relative to the vehicle frame and is disposed between the two side guardrails, and is used to support the guardrail structure when the side guardrails are in the first state; One end of the seat member is hinged to the side guardrail through a connecting rod, and the other end is hinged to the back guardrail.

10. The carrier according to claim 1, wherein: Two guardrail structures are provided, and the two guardrail structures are spaced apart in the second horizontal direction, wherein; Each of the guardrail structures has the first state and the second state; and / or, The two guardrail structures are arranged opposite to each other, and a passage is formed between the two guardrail structures; and / or, The vehicle frame includes a first bracket and a second bracket. The second bracket is rotatably mounted on the first bracket around an axis extending in a first horizontal direction. The first bracket and the second bracket are each provided with a guardrail structure.

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