Carrier

Abstract

The utility model discloses a carrier which has an unfolded state and a folded state and comprises a supporting frame, an upper frame assembly, a sliding piece and a lower frame assembly, and the supporting frame extends in the vertical direction. The upper frame assembly comprises a first upper frame and a second upper frame, and the first upper frame, the second upper frame and the upper portion of the supporting frame are jointly and rotationally connected around a first rotating center line. The sliding piece is arranged on the supporting frame in a sliding mode. The lower frame assembly comprises a first lower frame and a second lower frame which are rotationally connected with the sliding part, in the unfolded state, the sliding part is located at the first position, and the first upper frame, the second upper frame, the first lower frame and the second lower frame extend in the front-back direction; in the folding state, the sliding piece is located at the second position, the second position is located above the first position, the first upper frame, the second upper frame, the first lower frame and the second lower frame extend in the vertical direction and are folded relative to the supporting frame, and the carrier is simple in structure and convenient to fold.

Description

Technical Field

[0001] The utility model relates to a carrier. Background Art

[0002] For the convenience of storage and carrying, most vehicles have a folding function. The structures of existing foldable vehicles are different, and the folding principles are also different. However, most foldable vehicles have complex structures, cumbersome folding operations, and the folded vehicles still take up a large space, which brings great inconvenience to users. Therefore, how to simplify the vehicle structure and folding operation while providing stable bearing support, and reduce the volume of the vehicle after folding as much as possible, has always been a goal pursued by technical personnel in this field. Summary of the invention

[0003] The purpose of the utility model is to provide a new carrier.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a carrier having an unfolded state and a folded state, the carrier comprising:

[0005] A support frame extending in an up-down direction;

[0006] An upper frame assembly, comprising a first upper frame and a second upper frame respectively arranged at the front and rear sides of the support frame, one end of the first upper frame, one end of the second upper frame and the upper part of the support frame are rotatably connected together around a first rotation center line, and the first rotation center line extends in the left-right direction;

[0007] A sliding member, the sliding member is slidably disposed on the support frame in an up-down direction;

[0008] The lower frame assembly comprises a first lower frame and a second lower frame respectively arranged at the front and rear sides of the support frame, one end of the first lower frame and one end of the second lower frame are rotatably connected to the sliding member respectively,

[0009] The carrier is in an unfolded state, the sliding member is in a first position on the support frame, the first upper frame, the second upper frame, the first lower frame, and the second lower frame each extend in a front-to-rear direction, and an accommodating space is formed between the upper frame assembly and the lower frame assembly;

[0010] The carrier is in a folded state, the sliding member is in a second position on the support frame, the second position is located above the first position, the first upper frame, the second upper frame, the first lower frame, and the second lower frame all extend in the up and down directions and are folded relative to the support frame, wherein the first lower frame and the second lower frame are folded between the first upper frame and the second upper frame.

[0011] Preferably, the carrier also has an intermediate state between the unfolded state and the folded state. When the carrier is in the intermediate state, the first upper frame and the second upper frame are relatively unfolded, the first lower frame and the second lower frame extend obliquely toward each other from bottom to top, and the sliding member is in a third position on the support frame. In the up and down direction, the third position is located between the first position and the second position.

[0012] Preferably, the carrier includes a locking mechanism for locking it in the unfolded state, the locking mechanism includes a first locking assembly arranged between the upper frame assembly and the upper portion of the support frame, and the sliding member is configured to drive the first locking assembly to unlock during the process of sliding from the first position to the second position.

[0013] Further, the carrier includes an unlocking assembly for releasing the lock of the first locking assembly, the unlocking assembly includes an unlocking member, and the unlocking member can be relatively slidably arranged on the support frame along the length direction of the support frame,

[0014] The unlocking member has at least a first working position and a second working position on the support frame. When the unlocking member is in the first working position, the first locking assembly is in a locked state. The second working position is located above the first working position. When the unlocking member is in the second working position, the first locking assembly is in an unlocked state. The unlocking assembly further includes a first elastic member for providing a force required for the unlocking member to move toward the first working position.

[0015] A driving structure is provided between the sliding member and the unlocking member, and the driving structure is configured to drive the unlocking member to move from the first working position to the second working position during the movement of the sliding member to the second position.

[0016] Further, the driving structure includes a driving surface provided on the sliding member and facing upward, and a driving member provided on the unlocking member, the sliding member has a fourth position on the support frame, and in the up and down direction, the fourth position is located between the first position and the second position, when the sliding member is in the fourth position, the driving surface abuts upward against the lower part of the driving member, and during the movement of the sliding member from the fourth position to the second position, the driving surface always abuts against the lower part of the driving member.

[0017] Preferably, the support frame includes two support rods arranged on the left and right sides respectively, the upper part of the support rod has a first connection seat and a second connection seat arranged at an interval and fixedly connected, one end of the first upper frame is provided with a first rotation joint, and one end of the second upper frame is provided with a second rotation joint, which are located on the left and right sides of the carrier, and the first connection seat, the first rotation joint, the second rotation joint, and the second connection seat are sequentially arranged along the extension direction of the first rotation center line and are rotatably connected together around the first rotation center line.

[0018] The first locking assembly includes a first locking member disposed between the first rotating joint and the second rotating joint for locking the two together, and a second locking member disposed between the second rotating joint and the second connecting seat for locking the two together, the first locking member and the second locking member can both be slidably disposed along the extension direction of the first rotating centerline, and the first locking member and the second locking member abut against each other along the axial direction,

[0019] The unlocking assembly also includes a linkage member, which is configured to drive the first locking member and the second locking member to move away from the first connecting seat during the movement of the unlocking member to the second working position. The first locking assembly also includes a second elastic member for providing the force required for the second locking member to move toward the first connecting seat.

[0020] Further, the linkage member is arranged between the first connecting seat and the first rotating joint, the linkage member can be slidably arranged along the extending direction of the first rotating center line, and the linkage member and the first locking member abut against each other along the axial direction.

[0021] An unlocking structure is arranged between the unlocking member and the linkage member, and the unlocking structure includes an unlocking surface arranged on the unlocking member and a matching surface arranged on the linkage member, and both the unlocking surface and the matching surface are inclined surfaces extending from top to bottom gradually away from the first connecting seat.

[0022] Preferably, the first locking assembly includes a locking structure disposed between the first upper frame and the support frame for locking the two together, the locking structure includes a locking groove disposed on the first upper frame, and a locking pin disposed on the unlocking member, the locking pin extends from the unlocking member to the first upper frame and is inserted into the locking groove.

[0023] A guide structure is also provided between the first upper frame and the support frame to provide a motion guide for the relative rotation between the two. The guide structure includes a guide groove provided on the first upper frame, and the guide groove is communicated with the locking groove.

[0024] When the unlocking member is in the first working position, the locking pin is located in the locking groove; when the unlocking member is in the second working position, the locking pin is located in the guide groove and can slide along the length direction of the guide groove.

[0025] Preferably, the guide groove is an arc-shaped groove with the first rotation center line as the rotation center, and when the carrier is in the unfolded state, the locking groove extends in the up and down directions, and one end of the guide groove is connected to the upper part of the locking groove.

[0026] Preferably, the locking mechanism includes a second locking assembly arranged between the sliding member and the support frame, the second locking assembly includes a third locking member rotatably arranged on the sliding member around a second rotation center line, and a locking hole arranged on the support frame, the extension direction of the second rotation center line is perpendicular to the length extension direction of the support frame, the third locking member is provided with a locking portion, and the carrier is in the expanded state, the locking portion is inserted in the locking hole, and the second locking assembly also includes a third elastic member for providing the locking portion with the force required for the movement of the locking portion toward the support frame.

[0027] Due to the application of the above technical scheme, the utility model has the following advantages compared with the prior art: the carrier of the utility model has a simple structure. In the folded state, the upper frame assembly, the lower frame assembly and the support frame are folded together in the front-to-back direction, so that the folded carrier has a compact structure and occupies a small space, which is convenient for storage and carrying. The sliding part can slide up and down on the support frame, and the carrier can be folded by driving the sliding part to slide upward, which is convenient to fold. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Attached Figure 1 It is a schematic diagram of the three-dimensional structure of a carrier in a specific embodiment of the utility model in an unfolded state;

[0029] Attached Figure 2 For attachment Figure 1 A side view schematic diagram of

[0030] Attached Figure 3 For the attachment Figure 2 Schematic cross-sectional view along the AA direction;

[0031] Attached Figure 4 is a side view schematic diagram of the carrier of this embodiment in an intermediate state;

[0032] Attached Figure 5 is a side view schematic diagram of the carrier of this embodiment in a folded state;

[0033] Attached Figure 6 For the attachment Figure 5 A cross-sectional schematic diagram along the BB direction;

[0034] Attached Figure 7 is a schematic diagram of the three-dimensional structure of the first upper frame of this embodiment;

[0035] Attached Figure 8 is a schematic diagram of the three-dimensional structure of the second upper frame of this embodiment;

[0036] Attached Fig. 9 It is a partial structural exploded schematic diagram of the support frame of this embodiment;

[0037] Among them: 1. support frame; 10. accommodating space; 11. support rod; 111. rod body; 112. first connecting seat; 113. second connecting seat; 2. upper frame assembly; 21. first upper frame; 211. first rotating joint; 212. locking groove; 213. guide groove; 22. second upper frame; 221. second rotating joint; 3. sliding member; 31. driving surface; 4. lower frame assembly; 41. first lower frame; 411. first axis; 42. second lower frame ; 421, second axis; 51, first locking member; 511, protrusion; 52, second locking member; 53, second elastic member; 54, tooth groove; 61, unlocking member; 611, driving member; 612, unlocking surface; 613, locking pin; 62, first elastic member; 63, linkage member; 631, mating surface; 71, third locking member; 711, locking part; 712, unlocking part; 72, lock hole; 8, unlocking belt; X1, first rotation center line; X2, second rotation center line. DETAILED DESCRIPTION

[0038] In order to clearly explain the relative position relationship of each rod and component on the vehicle, a coordinate system is established based on the direction observed by the user when sitting or lying on the vehicle, and the directions of up, down, left, right, front, back, inside and outside are defined in turn. For details, please refer to the attached Figure 1 Example markings in .

[0039] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] See also Figure 1A carrier shown in the figure has an unfolded state and a folded state, and includes a support frame 1, an upper frame assembly 2, a sliding member 3 and a lower frame assembly 4. The support frame 1 extends in the up-down direction; the upper frame assembly 2 includes a first upper frame 21 and a second upper frame 22 respectively arranged on the front and rear sides of the support frame, one end of the first upper frame 21 and one end of the second upper frame 22 are rotatably connected with the upper part of the support frame 1 around a first rotation center line X1, and the first rotation center line X1 extends in the left-right direction; the sliding member 3 can be slidably arranged on the support frame 1 in the up-down direction; the lower frame assembly 4 includes a first lower frame 41 and a second lower frame 42 respectively arranged on the front and rear sides of the support frame 1, one end of the first lower frame 41 and one end of the second lower frame 42 are rotatably connected with the sliding member 3 respectively.

[0041] The vehicle is in the deployed state, see Figure 1 , Figure 2 As shown, the sliding member 3 is in the first position on the support frame 1, the first upper frame 21, the second upper frame 22, the first lower frame 41, and the second lower frame 42 each extend in the front-to-back direction, and an accommodating space 10 is formed between the upper frame assembly 2 and the lower frame assembly 4.

[0042] The vehicle is in folded state, see Figure 5 As shown, the sliding member 3 is in the second position on the support frame 1, and the second position is located above the first position. The first upper frame 21, the second upper frame 22, the first lower frame 41, and the second lower frame 42 all extend in the up and down directions and are retracted relative to the support frame 1, wherein the first lower frame 41 and the second lower frame 42 are retracted between the first upper frame 21 and the second upper frame 22.

[0043] In this embodiment, the carrier also has an intermediate state between the unfolded state and the folded state. Figure 4 As shown, the carrier is in the middle state, the sliding member 3 is in the third position on the support frame 1, and the third position is located between the first position and the second position in the up-down direction. In this state, the first upper frame 21 and the second upper frame 22 are relatively unfolded, and both are still in the unfolded state, and the first lower frame 41 and the second lower frame 42 extend obliquely toward each other from bottom to top, and both are in the folding process.

[0044] In this embodiment, see Figure 1As shown, the support frame 1 includes two support rods 11 arranged on the left and right sides, and the support rods 11 extend in the up-down direction. A sliding member 3 is slidably arranged on each support rod 11. The first upper frame 21, the second upper frame 22, the first lower frame 41, and the second lower frame 42 are all U-shaped, wherein the two free ends of the first upper frame 21 are fixed with a first rotating joint 211, and the two free ends of the second upper frame 22 are fixed with a second rotating joint 221, which are located on the left and right sides of the vehicle, and the first rotating joint 211, the second rotating joint 221, and the upper part of the support rod 11 are connected to rotate around the first rotating center line X1. The sliding member 3 is specifically a sliding sleeve slidably arranged on the support rod 11, which is located on the left and right sides of the vehicle, and the free end of the first lower frame 41 is connected to the sliding sleeve rotatably around the first axis 411, and the free end of the second lower frame 42 is connected to the sliding sleeve rotatably around the second axis 421, and the axis lines of the first axis 411 and the second axis 421 are parallel to each other and extend in the left-right direction.

[0045] In other embodiments, located on the left and right sides of the vehicle, the free ends of the first lower frame 41 and the second lower frame 42 are rotatably connected to the sliding sleeve around the same rotation center line, and the rotation center line extends in the left-right direction and is parallel to the first rotation center line X1.

[0046] The carrier includes a locking mechanism for locking it in an unfolded state, the locking mechanism includes a first locking assembly arranged between the upper frame assembly 2 and the upper part of the support frame 1, and the sliding member 3 is configured to drive the first locking assembly to unlock during the process of sliding from the first position to the second position.

[0047] In this embodiment, the upper part of the support rod 11 has a first connection seat 112 and a second connection seat 113 which are arranged at intervals and fixedly connected. Specifically, the support rod 11 includes a rod body 111 extending in the up-down direction, a sleeve is sleeved on the rod body 111, and the upper part of the rod body 111 is provided with a first connection seat 112 and a second connection seat 113, wherein the first connection seat 112 is fixedly connected to the upper part of the rod body 111, and the second connection seat 113 is fixedly connected to the first connection seat 112. In the left-right direction, the two second connection seats 113 are located inside the two first connection seats 112, the first rotation joint 211 and the second rotation joint 221 are arranged between the first connection seat 112 and the second connection seat 113, and the first connection seat 112, the first rotation joint 211, the second rotation joint 221, and the second connection seat 113 are arranged in sequence along the extension direction of the first rotation center line X1.

[0048] The first locking assembly includes a first locking member 51 disposed between the first rotating joint 211 and the second rotating joint 221 for locking the two to each other, and a second locking member 52 disposed between the second rotating joint 221 and the second connecting seat 113 for locking the two to each other. Both the first locking member 51 and the second locking member 52 can be slidably disposed along the extension direction of the first rotation center line X1, and the first locking member 51 and the second locking member 52 abut against each other along the axial direction. The first locking assembly also includes a second elastic member 53 for providing the second locking member 52 with the required force to move toward the first connecting seat 112. By driving the first locking member 51 and the second locking member 52 to slide along the extension direction of the first rotation center line X1, the first locking assembly can be driven to switch between a locked state and an unlocked state.

[0049] See also Figure 3 As shown, a first accommodating cavity is formed between the first rotating joint 211 and the second rotating joint 221, a second accommodating cavity is formed between the second rotating joint 221 and the second connecting seat 113, the first locking member 51 is located in the first accommodating cavity, and the second locking member 52 is located in the second accommodating cavity. Figures 6 to 9 As shown, the first rotating joint 211 constitutes the side of the first accommodating cavity, the second rotating joint 221 constitutes the first chamber and the two sides of the second chamber, and the second connecting seat 113 is provided with tooth grooves 54, and the first locking member 51 and the second locking member 52 both have locking teeth. When the first locking assembly is in a locked state, the locking teeth of the first locking member 51 are simultaneously clamped in the tooth grooves 54 of the first rotating joint 211 and the second rotating joint 221, and the locking teeth of the second locking member 52 are simultaneously clamped in the tooth grooves 54 of the second rotating joint 221 and the second connecting seat 113, thereby limiting the relative rotation between the first rotating joint 211 and the second rotating joint 221, and the relative rotation between the second rotating joint 221 and the second connecting seat 113, so that the first upper frame 21, the second upper frame 22 and the support frame 1 are locked with each other.

[0050] When the first locking assembly is in the unlocked state, see Figure 6 As shown, the locking teeth of the first locking member 51 withdraw from the tooth groove 54 of the first rotating joint 211 and are fully inserted in the tooth groove 54 of the second rotating joint 221, so that the first rotating joint 211 and the second rotating joint 221 can rotate relative to each other; the locking teeth of the second locking member 52 withdraw from the tooth groove 54 of the second rotating joint 221 and are fully inserted in the tooth groove 54 of the second connecting seat 113, so that the second rotating joint 221 and the second connecting seat 113 can rotate relative to each other.

[0051] In this embodiment, a protrusion 511 extending toward the second connection seat 113 is provided on the first locking member 51, the protrusion 511 abuts against the second locking member 52, and the protrusion 511 can penetrate from the first accommodating cavity into the second accommodating cavity. When the first locking member 51 moves toward the second connection seat 113, the protrusion 511 pushes the second locking member 52 to move toward the second connection seat 113. When the second locking member 52 moves toward the first connection seat 112 driven by the second elastic member 53, the first locking member 51 is driven to move toward the first connection seat 112 by the protrusion 511.

[0052] The carrier includes an unlocking assembly for unlocking the first locking assembly, and the unlocking assembly includes an unlocking member 61, and the unlocking member 61 can be relatively slidably arranged on the support frame 1 along the length direction of the support frame 1. Specifically, see Figure 3 , Figure 6 As shown, the unlocking member 61 is arranged in the rod cavity of the rod body 111 and can slide up and down in the rod cavity. The unlocking member 61 has at least a first working position and a second working position on the support frame 1, and the second working position is located above the first working position. When the unlocking member 61 is in the first working position, the first locking assembly is in a locked state, and when the unlocking member 61 is in the second working position, the first locking assembly is in an unlocked state. The unlocking assembly also includes a first elastic member 62 for providing the unlocking member 61 with the required force to move toward the first working position.

[0053] The unlocking assembly also includes a linkage member 63, which is arranged between the first connecting seat 112 and the first upper frame 21. The linkage member 63 can also be slidably arranged along the extension direction of the first rotation center line X1. The linkage member 63 and the first locking member 51 are axially abutted against each other. The linkage member 63 is configured to drive the first locking member 51 and the second locking member 52 to move away from the first upper frame 21 when the unlocking member 61 moves to the second working position.

[0054] An unlocking structure is provided between the unlocking member 61 and the linkage member 63. The unlocking structure includes an unlocking surface 612 provided on the unlocking member 61 and a matching surface 631 provided on the linkage member 63. Both the unlocking surface 612 and the matching surface 631 are inclined surfaces that extend gradually away from the first connecting seat 112 from top to bottom. Figure 3 As shown, the linkage member 63 has a main body located in the first accommodating cavity, and an extension portion extending from the main body toward the first connecting seat 112 and inserted into the rod cavity of the rod body 111, and the mating surface 631 is located at the end of the extension portion. The unlocking member 61 is provided with an accommodating groove, and the end of the extension portion can be inserted into the accommodating groove, and the groove wall on one side of the accommodating groove constitutes the unlocking surface 612. In this embodiment, the unlocking member 61 is provided with two accommodating grooves spaced apart in the up-and-down direction, and the extension portion of the linkage member 63 also has two accommodating grooves arranged in the up-and-down direction.

[0055] When the unlocking member 61 is in the first working position, the extension portion is inserted into the receiving groove, and the unlocking surface 612 and the matching surface 631 are in contact with each other. When the unlocking member 61 moves upward and switches to the second working position, the unlocking surface 612 and the matching surface 631 slide in cooperation, and drive the linkage member 63 away from the first connecting seat 112 along the extension direction of the first rotation center line X1, the linkage member 63 pushes the first locking member 51, and the first locking member 51 pushes the second locking member 52, so that the first locking member 51 and the second locking member 52 are both away from the first connecting seat 112 along the extension direction of the first rotation center line X1, and finally release the lock of the first locking assembly.

[0056] A driving structure is provided between the sliding member 3 and the unlocking member 61. During the movement of the sliding member 3 to the second position, the driving structure drives the unlocking member 61 to move from the first working position to the second working position, thereby releasing the lock of the first locking assembly. The driving structure includes a driving surface 31 provided on the sliding member 3 and facing upward, and a driving member 611 provided on the unlocking member 61. The sliding member 3 has a fourth position on the support frame 1. In the up-down direction, the fourth position is located between the first position and the second position. When the sliding member 3 is in the fourth position, the driving surface 31 abuts against the lower part of the driving member 611 upward. During the movement of the sliding member 3 from the fourth position to the second position, the unlocking member 61 performs an unlocking operation on the first locking assembly. During this process, the driving surface 31 always abuts against the lower part of the driving member 611, and the sliding member 3 pushes the unlocking member 61 to move upward.

[0057] In this embodiment, the upper surface of the sliding member 3 constitutes the above-mentioned driving surface 31, and the lower part of the unlocking member 61 is provided with a driving pin extending in the left and right directions. The driving pin passes through the rod cavity of the rod body 111, and the driving pin constitutes the above-mentioned driving member 611.

[0058] In this embodiment, the third position can be any position between the first position and the second position. When the sliding member 3 is in the third position, the first lower frame 41 and the second lower frame 42 are in the process of relative folding, while the upper frame assembly 2 and the support frame 1 are still locked with each other, and the first upper frame 21 and the second upper frame 22 are maintained in a relatively expanded state. The fourth position is one of the many third positions, and the fourth position is the initial position where the unlocking member 61 begins to unlock the first locking assembly. In the process of the sliding member 3 sliding from the fourth position to the second position, the unlocking member 61 unlocks the first locking assembly under the drive of the sliding member 3. In this process, the first upper frame 21 and the second upper frame 22 are still maintained in a relatively expanded state, while the first lower frame 41 and the second lower frame 42 are both in the process of relative folding. When the sliding member 3 moves to the second position, the first locking assembly is unlocked, and the upper frame assembly 2 can be folded.

[0059] In this embodiment, see Figure 7, Fig. 9 As shown, the first locking assembly also includes a locking structure disposed between the first upper frame 21 and the support frame 1 for locking the two to each other. Specifically, the locking structure includes a locking groove 212 disposed on the first upper frame 21, and a locking pin 613 disposed on the unlocking member 61, the locking pin 613 extends from the unlocking member 61 to the first upper frame 21 and is inserted into the locking groove 212, thereby limiting the relative rotation between the support frame 1 and the first upper frame 21.

[0060] In this embodiment, a guide structure is further provided between the first upper frame 21 and the support frame 1 to provide a motion guide for the relative rotation of the two, and the guide structure includes a guide groove 213 provided on the first upper frame 21, and the guide groove 213 is communicated with the lock groove 212. When the unlocking member 61 is in the first working position, the lock pin 613 is located in the lock groove 212, and when the unlocking member 61 is in the second working position, the lock pin 613 is located in the guide groove 213 and can slide along the length direction of the guide groove 213.

[0061] Specifically, the guide groove 213 is provided on the first rotating joint 211, and the guide groove 213 is an arc groove with the first rotating center line X1 as the rotating center. When the carrier is in the unfolded state, the locking groove 212 extends in the up-down direction, and one end of the guide groove 213 is connected with the upper part of the locking groove. In this state, the locking pin 613 is located at the lower part of the locking groove 212. When the unlocking member 61 moves upward to unlock, the locking pin 613 moves upward along the locking groove 212 and enters the guide groove 213. When the unlocking member 61 is in the second working position, the locking pin 613 is completely located in the guide groove 213, and at this time, the first upper frame 21 and the support frame 1 are unlocked, and the two can rotate relative to each other. During the rotation process, the locking pin 613 slides in the guide groove 213 and provides guidance. In this embodiment, the guide groove 213 can guide the first upper frame 21 to rotate downward and fold relative to the support frame 1, and two sets of locking grooves 212 and guide grooves 213 are symmetrically arranged along the radial direction. The unlocking member 61 also has two locking pins 613 along the up and down directions.

[0062] In other embodiments, only the first connecting seat 112 is provided on the upper portion of the support rod 11, and the first locking assembly includes the above-mentioned first locking member 51 and related structures, and a locking structure between the unlocking member 61 and the first upper frame 21, wherein the first locking member 51 limits the rotation between the first upper frame 21 and the second upper frame 22, and the locking structure limits the rotation between the first upper frame 21 and the support rod 11, thereby achieving a locking effect. In other embodiments, the first locking assembly includes the above-mentioned first locking member 51 and the second locking member 52 and related structures, but does not include a locking structure between the unlocking member 61 and the first upper frame 21, and the first locking member 51 and the second locking member 52 limit the rotation between the first upper frame 21 and the second upper frame 22, and between the second upper frame 22 and the support rod 11, thereby achieving a locking effect.

[0063] The locking mechanism also includes a second locking assembly arranged between the sliding member 3 and the support frame 1, the second locking assembly includes a third locking member 71 rotatably arranged on the sliding member around a second rotation center line X2, and a locking hole 72 arranged on the support frame 1, the extension direction of the second rotation center line X2 is perpendicular to the length extension direction of the support frame 1, and a locking portion 711 is provided on the third locking member 71. When the carrier is in the unfolded state, the locking portion 711 is inserted into the locking hole 72. The second locking assembly also includes a third elastic member (not shown in the figure) for providing the locking portion 711 with the force required for the movement of the support frame 1.

[0064] See also Figure 1 As shown, a second locking assembly is disposed between the two support rods 11 on the left and right sides and the sliding member 3, and along the left and right directions, two third locking members 71 are located between the two support rods 11, and when unlocked, the two third locking members 71 rotate toward each other. The third locking member 71 has an unlocking portion 712, and the unlocking portions 712 of the two third locking members 71 extend toward each other, and the unlocking portion 712 is located below the second rotation center line X2, and the locking portion 711 can be driven to disengage from the lock hole 72 by driving the third locking member 71 to rotate upward around the second rotation center line X2.

[0065] In this embodiment, the carrier also has an unlocking belt 8, and the two different ends of the unlocking belt 8 are respectively connected to the unlocking portion 712 of the third locking member 71. By lifting the unlocking belt 8, the two third locking members 71 can be driven to rotate around the second rotation center line X2 and unlock the second locking assembly. After unlocking the second locking assembly, the unlocking belt 8 is continuously lifted, and the sliding members 3 on both sides can be driven to slide upward along the length direction of the support rod 11. During the process, the sliding member 3 passes through the fourth position, and the sliding member 3 drives the unlocking member 61 to move upward synchronously and unlock the first locking assembly. Finally, by lifting the unlocking belt 8, the sliding member 3 can be driven to slide to the second position to unlock the first locking assembly, and the upper frame assembly 2 can be folded, thereby completing the folding of the entire carrier.

[0066] In this embodiment, the vehicle further includes a side enclosure (not shown in the figure) disposed between the upper frame assembly 2 and the lower frame assembly 4. The side enclosure is made of a flexible material and disposed on the circumferential outer side of the accommodating space 10 to provide lateral protection. The side enclosure is connected between the upper frame assembly 2 and the lower frame assembly 4 so that in the unfolded state, the first lower frame 41 and the second lower frame 42 can maintain a state of extending in the front-rear direction.

[0067] The vehicle is in the deployed state, see Figure 1 , Figure 2 As shown, the first locking assembly and the second locking assembly are both in a locked state, the upper frame assembly 2 and the support frame 1 are locked with each other, and the sliding member 3 is locked at the lower part of the support rod 11. In this state, the first upper frame 21 and the second upper frame 22 extend along the same length direction, and the openings of the first upper frame 21 and the second upper frame 22 are opposite, and the two are surrounded in a closed frame shape along the front-to-back direction. The first lower frame 41 and the second lower frame 42 also extend along the same length direction, and the openings of the first lower frame 41 and the second lower frame 42 are opposite, and the two are surrounded in a closed frame shape along the front-to-back direction. In this state, a support plate can be set above the first lower frame 41 and the second lower frame 42, or a flexible cloth cover for bearing can be set between the two, and the child can sit or lie on the support plate or the flexible cloth cover. In this state, the side enclosure is relatively unfolded and provides lateral protection for the child in the accommodating space 10.

[0068] When the carrier is folded, the unlocking belt 8 is pulled upward, and the unlocking belt 8 drives the third locking member 71 to rotate and unlock the second locking assembly. The unlocking belt 8 is pulled upward continuously, and the unlocking belt 8 drives the sliding member 3 to slide upward. During this process, the side circumference is folded in the up-down direction, so that the first lower frame 41 and the second lower frame 42 can rotate downward relative to the sliding member 3 and fold relative to the support frame 1. When the sliding member 3 slides to the fourth position, the driving surface 31 of the sliding member 3 and the driving member 611 of the unlocking member 61 abut against each other. The sliding member 3 is continued to be driven upward by the unlocking belt 8, and the sliding member 3 will push the unlocking member 61 to move upward together. During this process, the unlocking member 61 drives the first locking member 51 and the second locking member 52 away from the first connecting seat 112 through the linkage member 63, thereby unlocking the first locking assembly. When the sliding member 3 moves to the second position, the first locking assembly is unlocked, and the first upper frame 21 and the second upper frame 22 can rotate downward around the first rotation center line X1 and fold relative to the support frame 1.

[0069] The vehicle is in folded state, see Figure 5 As shown, the first upper frame 21 , the first lower frame 41 , the support frame 1 , the second lower frame 42 , and the second upper frame 22 are folded in sequence along the front-to-back direction, and the sliding member 3 slides to the upper part of the support frame 1 .

[0070] In summary, the carrier of this embodiment has a simple structure and can be used as a sleeping basket for children to lie down and rest. It can also be used as a cart by arranging a wheel assembly at the bottom of the carrier. The folding operation of the carrier is simple. The unlocking operation of the first locking assembly and the second locking assembly can be completed by lifting the unlocking belt 8, and the folding operation of the carrier can be completed at the same time. The folded carrier has a compact structure in the front-to-back direction, occupies a small space, and is easy to store and organize.

[0071] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A vehicle having an unfolded state and a folded state, characterized in that: The vehicle comprises: A support frame extending in an up-down direction; An upper frame assembly, comprising a first upper frame and a second upper frame respectively arranged at the front and rear sides of the support frame, one end of the first upper frame, one end of the second upper frame and the upper part of the support frame are rotatably connected together around a first rotation center line, and the first rotation center line extends in the left-right direction; A sliding member, the sliding member is slidably disposed on the support frame in an up-down direction; The lower frame assembly comprises a first lower frame and a second lower frame respectively arranged at the front and rear sides of the support frame, one end of the first lower frame and one end of the second lower frame are rotatably connected to the sliding member respectively, The carrier is in an unfolded state, the sliding member is in a first position on the support frame, the first upper frame, the second upper frame, the first lower frame, and the second lower frame each extend in a front-to-rear direction, and an accommodating space is formed between the upper frame assembly and the lower frame assembly; The carrier is in a folded state, the sliding member is in a second position on the support frame, the second position is located above the first position, the first upper frame, the second upper frame, the first lower frame, and the second lower frame all extend in the up and down directions and are folded relative to the support frame, wherein the first lower frame and the second lower frame are folded between the first upper frame and the second upper frame.

2. The carrier according to claim 1, characterized in that: The carrier also has an intermediate state between the unfolded state and the folded state. When the carrier is in the intermediate state, the first upper frame and the second upper frame are relatively unfolded, the first lower frame and the second lower frame extend obliquely toward each other from bottom to top, and the sliding member is in a third position on the support frame. In the up and down direction, the third position is located between the first position and the second position.

3. The carrier according to claim 1, characterized in that: The carrier includes a locking mechanism for locking it in the unfolded state, the locking mechanism includes a first locking assembly arranged between the upper frame assembly and the upper portion of the support frame, and the sliding member is configured to drive the first locking assembly to unlock during the process of sliding from the first position to the second position.

4. The carrier according to claim 3, characterized in that: The carrier includes an unlocking assembly for unlocking the first locking assembly, the unlocking assembly includes an unlocking member, and the unlocking member is relatively slidably disposed on the support frame along the length direction of the support frame, The unlocking member has at least a first working position and a second working position on the support frame. When the unlocking member is in the first working position, the first locking assembly is in a locked state. The second working position is located above the first working position. When the unlocking member is in the second working position, the first locking assembly is in an unlocked state. The unlocking assembly further includes a first elastic member for providing a force required for the unlocking member to move toward the first working position. A driving structure is provided between the sliding member and the unlocking member, and the driving structure is configured to drive the unlocking member to move from the first working position to the second working position during the movement of the sliding member to the second position.

5. The carrier according to claim 4, characterized in that: The driving structure includes a driving surface disposed on the sliding member and facing upward, and a driving member disposed on the unlocking member. The sliding member has a fourth position on the support frame, and the fourth position is located between the first position and the second position in the up and down direction. When the sliding member is in the fourth position, the driving surface is pressed upward against the lower part of the driving member. During the movement of the sliding member from the fourth position to the second position, the driving surface is always pressed against the lower part of the driving member.

6. The carrier according to claim 4, characterized in that: The support frame includes two support rods arranged on the left and right sides, the upper part of the support rod has a first connection seat and a second connection seat arranged at an interval and fixedly connected, one end of the first upper frame is provided with a first rotation joint, and one end of the second upper frame is provided with a second rotation joint, which are located on the left and right sides of the carrier, and the first connection seat, the first rotation joint, the second rotation joint, and the second connection seat are sequentially arranged along the extension direction of the first rotation center line and are rotatably connected together around the first rotation center line. The first locking assembly includes a first locking member disposed between the first rotating joint and the second rotating joint for locking the two together, and a second locking member disposed between the second rotating joint and the second connecting seat for locking the two together, the first locking member and the second locking member can both be slidably disposed along the extension direction of the first rotating centerline, and the first locking member and the second locking member abut against each other along the axial direction, The unlocking assembly also includes a linkage member, which is configured to drive the first locking member and the second locking member to move away from the first connecting seat during the movement of the unlocking member to the second working position. The first locking assembly also includes a second elastic member for providing the force required for the second locking member to move toward the first connecting seat.

7. The carrier according to claim 6, characterized in that: The linkage member is disposed between the first connection seat and the first rotation joint, the linkage member can be slidably disposed along the extension direction of the first rotation center line, and the linkage member and the first locking member abut against each other along the axial direction. An unlocking structure is arranged between the unlocking member and the linkage member, and the unlocking structure includes an unlocking surface arranged on the unlocking member and a matching surface arranged on the linkage member, and both the unlocking surface and the matching surface are inclined surfaces extending from top to bottom gradually away from the first connecting seat.

8. The carrier according to claim 4, characterized in that: The first locking assembly includes a locking structure disposed between the first upper frame and the support frame for locking the two together, the locking structure includes a locking groove disposed on the first upper frame, and a locking pin disposed on the unlocking member, the locking pin extends from the unlocking member to the first upper frame and is inserted into the locking groove, A guide structure is also provided between the first upper frame and the support frame to provide a motion guide for the relative rotation between the two. The guide structure includes a guide groove provided on the first upper frame, and the guide groove is communicated with the locking groove. When the unlocking member is in the first working position, the locking pin is located in the locking groove; when the unlocking member is in the second working position, the locking pin is located in the guide groove and can slide along the length direction of the guide groove.

9. The carrier according to claim 8, characterized in that: The guide groove is an arc-shaped groove with the first rotation center line as the rotation center. When the carrier is in the unfolded state, the locking groove extends in the up-down direction, and one end of the guide groove is connected to the upper part of the locking groove.

10. The carrier according to any one of claims 3 to 9, characterized in that: The locking mechanism includes a second locking assembly arranged between the sliding member and the support frame, the second locking assembly includes a third locking member rotatably arranged on the sliding member around a second rotation center line, and a locking hole arranged on the support frame, the extension direction of the second rotation center line is perpendicular to the length extension direction of the support frame, the third locking member is provided with a locking portion, when the carrier is in the expanded state, the locking portion is inserted in the locking hole, and the second locking assembly also includes a third elastic member for providing the locking portion with the force required for the movement of the locking portion toward the support frame.

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