CN221418375U - vehicle - Google Patents

Abstract

The utility model discloses a carrier, comprising a bottom bracket assembly that can be folded along the front-back direction, and an upper bracket assembly that can be folded relative to the bottom bracket assembly. When the carrier is in an unfolded state, the upper bracket assembly comprises a first bracket, a second bracket, and a third bracket, and a fourth bracket extending along the front-back direction, and a first sliding member slidably arranged on the fourth bracket along the length extension direction of the fourth bracket. When the carrier is in an unfolded state, the fourth bracket and the third bracket cooperate with each other to form a seat device that can carry a human body, and the fourth bracket and the third bracket are integrally located above the bottom bracket assembly. Under the condition of having the same sitting height, the rods of the bottom bracket assembly can be set relatively short. After the carrier is folded, the bottom bracket assembly is folded along the front-back direction, and the rods in the upper bracket assembly are all folded relative to the fifth bracket of the bottom bracket assembly, so that the size of the folded carrier is relatively small, which is convenient for users to carry and use in daily life.

Description

vehicle

Technical Field

The utility model relates to a carrier.

Background technique

In the prior art, carriers such as strollers and child seats include a product rack with an unfolded state and a folded state, a seat arranged on the product rack, and a locking mechanism for locking the product rack in the unfolded state. Currently, there are many types of carriers on the market with various structures. How to simplify the product rack structure and the folding operation steps as much as possible while ensuring the basic carrying function of the carrier has always been a goal pursued by those skilled in the art.

Summary of the invention

The purpose of the utility model is to provide a carrier with a new structure to solve one or more problems of the prior art.

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 a bottom bracket assembly that can be folded in the front-to-back direction, and an upper bracket assembly that can be folded relative to the bottom bracket assembly, when the carrier is in the unfolded state, the upper bracket assembly comprises a first bracket, a second bracket and a third bracket that each extend in the up-down direction, and a fourth bracket that extends in the front-to-back direction, and a first sliding member that is slidably arranged on the fourth bracket along the length extension direction of the fourth bracket, the upper part of the first bracket is rotatably connected to the lower part of the second bracket, the third bracket is rotatably connected between the front part of the fourth bracket and the second bracket, and the rear part of the fourth bracket is rotatably connected to the first bracket, the bottom bracket assembly at least comprises a fifth bracket that extends in the up-to-down direction, the first sliding member is rotatably connected to the upper part of the fifth bracket, and the first bracket is rotatably connected to the fifth bracket, when the carrier is in the folded state, the bottom bracket assembly is folded in the front-to-back direction, and the first bracket, the second bracket, the third bracket and the fourth bracket are folded together with the fifth bracket in the front-to-back direction.

Preferably, when the carrier is in the unfolded state, the first sliding member is located at the first position on the fourth bracket; when the carrier is in the folded state, the first sliding member is located at the second position on the fourth bracket, and along the length extension direction of the fourth bracket, the first position is located behind the second position.

Furthermore, the upper bracket assembly also includes a backrest frame extending in the up-down direction, and the lower part of the backrest frame is rotatably connected to the first sliding member. When the carrier is in the unfolded state, the fourth bracket, the backrest frame and the third bracket cooperate with each other to form a seat device that can provide support for the human body. When the carrier is in the folded state, the backrest frame and the fourth bracket are retracted together.

Furthermore, the fourth bracket has a sitting surface, and the backrest frame has a backrest surface and a back side surface which are arranged on two different sides of its own thickness direction, and when the vehicle is in the unfolded state, the sitting surface faces upward and the backrest surface faces forward; when the vehicle is in the folded state, the sitting surface faces backward, and the back side surface is opposite to the sitting surface.

Furthermore, the lower portion of the third bracket is rotatably connected to the front portion of the fourth bracket around a first center line, and the rear portion of the fourth bracket is rotatably connected to the first bracket around a second center line, and during the conversion of the carrier between the unfolded state and the folded state, the first sliding member is always located between the first center line and the second center line along the front-to-back direction.

In some embodiments, when the carrier is in the unfolded state, the fifth bracket extends forwardly and tiltedly from bottom to top, and/or the fourth bracket is located as a whole above the bottom bracket assembly, and/or the first bracket and the second bracket extend along the same length direction.

Preferably, the bottom bracket assembly also includes a sixth bracket extending in the up-down direction, the upper portion of the sixth bracket is rotatably connected to the upper portion of the fifth bracket, the lower portion of the fifth bracket and the lower portion of the sixth bracket are both provided with wheel assemblies, and when the bottom bracket assembly is folded in the front-to-back direction, the fifth bracket and the sixth bracket are folded in the front-to-back direction.

In some embodiments, the first bracket and the fifth bracket intersect with each other and are connected to rotate around a third center line at the intersection. The first bracket also has a linkage end located below the third center line. The linkage end is interconnected with the bottom bracket assembly and is configured to, during the process of the first bracket rotating and retracting relative to the fifth bracket around the third center line, be linked to cause the fifth bracket and the sixth bracket to be retracted in the front-to-back direction.

In some embodiments, the bottom bracket assembly also includes a first link and a second link, one end of the first link is rotatably connected to one end of the second link, the other end of the first link is rotatably connected to the sixth bracket, and the other end of the second link is rotatably connected to the fifth bracket. A second sliding member is also rotatably provided on the linkage end, and the second sliding member can be slidably provided on the second link along the length extension direction of the second link.

In some embodiments, the bottom bracket assembly further includes a third link, one end of the third link is rotatably connected to the sixth bracket, and the other end of the third link is rotatably connected to the linkage end.

Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art: when the carrier of the utility model is in the unfolded state, the fourth bracket and the third bracket cooperate with each other to form a seat device capable of carrying a human body, and the fourth bracket and the third bracket are integrally located above the bottom bracket assembly. Under the condition of having the same sitting height, the rods of the bottom bracket assembly can be set relatively short. After the carrier is folded, the bottom bracket assembly is folded in the front-to-back direction, and the rods in the upper bracket assembly are all retracted relative to the fifth bracket of the bottom bracket assembly, so that the size of the folded carrier is relatively small, which is convenient for users to carry and use in daily life.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the carrier in the unfolded state according to Embodiment 1 of the present utility model;

Figure 2 is a schematic side view of the structure of the vehicle in Figure 1 in an unfolded state;

FIG3 is a schematic side view of the structure of the carrier of FIG1 during folding;

FIG4 is a schematic side view of the structure of the carrier of FIG1 in a folded state;

FIG5 is a schematic diagram of the three-dimensional structure of the carrier in the unfolded state according to Embodiment 2 of the present utility model;

Figure 6 is a side view of the structure of the vehicle in Figure 5 in an unfolded state;

FIG7 is a schematic side view of the structure of the carrier of FIG5 during folding;

FIG8 is a schematic side view of the structure of the carrier of FIG5 in a folded state;

Among them: 1. first bracket; 101. first support rod; 1A. linkage end; 2. second bracket; 21. second support rod; 3. third bracket; 31. third support rod; 32. fourth cross bar; 4. fourth bracket; 41. sitting surface; 42. slide; 5. fifth bracket; 51. fifth support rod; 52. first cross bar; 53. second cross bar; 6. sixth bracket; 61. sixth support rod; 62. third cross bar; 7. first sliding member; 8. backrest frame; 81. backrest board; 82. head support board; 83. backrest surface; 84. back side surface; 9. first wheel assembly; 10. second wheel assembly; 11. first connecting rod; 12. second connecting rod; 13. second sliding member; 14. third connecting rod.

Detailed ways

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

The following descriptions of the front, back, left, right, top, and bottom directions are all defined with reference to the directions observed by the user when the vehicle is in the unfolded state, and are intended only to clearly illustrate the relative positional relationship of the rods/components in the vehicle.

Example 1

Referring to a vehicle shown in FIGS. 1 to 4 , it is specifically a cart having an unfolded state and a folded state. The cart includes a bottom bracket assembly and an upper bracket assembly. The bottom bracket assembly can be folded along the front-rear direction, and the upper bracket assembly can be folded relative to the bottom bracket assembly.

The upper bracket assembly includes a first bracket 1, a second bracket 2, a third bracket 3, a fourth bracket 4 and a first sliding member 7. When the cart is in the unfolded state, the first bracket 1, the second bracket 2, and the third bracket 3 extend in the up-down direction respectively, and the fourth bracket 4 extends in the front-back direction. The upper part of the first bracket 1 is rotatably connected to the lower part of the second bracket 2, the third bracket 3 is rotatably connected between the front part of the fourth bracket 4 and the second bracket 2, and the rear part of the fourth bracket 4 is rotatably connected to the first bracket 1. The first sliding member 7 can be slidably arranged on the fourth bracket 4 along the length extension direction of the fourth bracket 4. The bottom bracket assembly includes at least a fifth bracket 5 extending in the up-down direction, the first sliding member 7 is rotatably arranged on the fifth bracket 5, and the first bracket 1 is rotatably connected to the fifth bracket 5.

Referring to Figures 1 and 2, when the cart of this embodiment is in the unfolded state, the first bracket 1 and the second bracket 2 respectively extend from bottom to top and backward at an angle, wherein the second bracket 2 can be used as a push handle bracket; the fourth bracket 4 is located in front of the first bracket 1, and serves as a seat to provide support for the user to sit and stand, and the third bracket 3 extends upward and backward at an angle from the front of the fourth bracket 4, and is rotatably connected to the lower part of the second bracket 2, and the third bracket 3 forms a protection above the side of the fourth bracket 4, which can be used as an armrest.

When the cart is folded, as shown in Figures 3 and 4, the bottom bracket assembly is folded in the front-to-back direction, the first sliding member 7 slides back and forth along the fourth bracket 4, the first bracket 1, the second bracket 2, the third bracket 3 and the fourth bracket 4 rotate relative to each other, and the first bracket 1 rotates relative to the fifth bracket 5, so that the first bracket 1, the second bracket 2, the third bracket 3 and the fourth bracket 4 and the fifth bracket 5 are folded together in the front-to-back direction to achieve the folding of the cart.

Referring to Figures 1 to 4, the upper support assembly of the cart also includes a backrest frame 8, the lower portion of which is rotatably connected to the first sliding member 7. When the cart is in the unfolded state, the first sliding member 7 is in a relatively rearward first position on the fourth support 4, and the backrest frame 8 cooperates with the fourth support 4 and the third support 3 to form a seat device that can provide support for the human body; when the cart is folded, the first sliding member 7 slides forward along the fourth support 4 to reach a relatively forward second position, driving the lower portion of the backrest frame 8 to move to the front position of the fourth support 4, and then the backrest frame 8 and the fourth support 4 are retracted.

Here, the fourth bracket 4 and the backrest frame 8 are both plate-shaped. The fourth bracket 4 has a sitting surface 41, and the backrest frame 8 has a backrest surface 83 and a back side surface 84 which are arranged on two different sides of its own thickness direction. The backrest frame 8 includes a backrest board 81 and a head support board 82 which are connected in the up and down directions and can be relatively rotated and folded. The backrest surface 83 and the back side surface 84 are two surfaces in the thickness direction of the backrest board 81. A slide groove 42 extending in the front and rear direction is provided on the fourth bracket 4, and the lower part of the backrest board 81 is rotatably connected to the first sliding member 7 through the slide groove 42.

When the cart is in the unfolded state, the sitting surface 41 faces upward and the backrest surface 83 faces forward, the head support plate 82 is located above the backrest plate 81 and extends along the same length direction as the backrest plate 81; when the cart is folded, the head support plate 82 is flipped relative to the backrest plate 81 and folded on one side of the backrest plate 81, and then the backrest plate 81 slides relative to the fourth bracket 4 along with the first sliding member 7 and is rotated and folded relative to the fourth bracket 4, and the back side surface 84 is opposite to the sitting surface 41, so that the back frame 8 and the fourth bracket 4 are folded together.

In this embodiment, the lower portion of the third bracket 3 is rotatably connected to the front portion of the fourth bracket 4 around the first center line X1, and the rear portion of the fourth bracket 4 is rotatably connected to the first bracket 1 around the second center line X2. During the transition of the cart from the unfolded state to the folded state, the first sliding member 7 is always located between the first center line X1 and the second center line X2, and the first sliding member 7 can also provide support for the fourth bracket 4 at the bottom of the fourth bracket 4.

The bottom bracket assembly also includes a sixth bracket 6 extending in the up-down direction, the upper portion of the sixth bracket 6 is rotatably connected to the upper portion of the fifth bracket 5, the lower portion of the fifth bracket 5 and the lower portion of the sixth bracket 6 are both provided with wheel assemblies, namely, a first wheel assembly 9 provided at the lower portion of the sixth bracket 6, and a second wheel assembly 10 provided at the lower portion of the fifth bracket 5. When the cart is in the unfolded state, the sixth bracket 6 extends obliquely from bottom to top and backward, the first wheel assembly 9 is a universal wheel assembly and is in the front, and the second wheel assembly 10 is in the rear. When the cart is folded, the sixth bracket 6 and the fifth bracket 5 rotate relative to each other and fold in the front-to-back direction, so that the bottom bracket assembly is folded in the front-to-back direction.

In the cart, the folding of the upper bracket assembly relative to the bottom bracket assembly is linked to the folding of the bottom bracket assembly itself in the front-to-back direction. Specifically, the first bracket 1 and the fifth bracket 5 intersect with each other and are rotatably connected around the third center line X3 at the intersection. The first bracket 1 has a linkage end 1A located below the third center line X3. The linkage end 1A is interconnected with the bottom bracket assembly and is configured to be linked to fold the sixth bracket 6 and the fifth bracket 5 in the front-to-back direction during the process of the first bracket 1 rotating and folding relative to the fifth bracket 5 around the third center line X3.

In the present embodiment, referring to FIG. 1 and FIG. 2 , the bottom bracket assembly further includes a first link 11 and a second link 12, one end of the first link 11 is rotatably connected to one end of the second link 12, the other end of the first link 11 is rotatably connected to the sixth bracket 6, the other end of the second link 12 is rotatably connected to the fifth bracket 5, and a second sliding member 13 is rotatably connected to the linkage end 1A, and the second sliding member 13 can be slidably arranged on the second link 12 along the length extension direction of the second link 12.

When the first bracket 1 is rotated and folded relative to the fifth bracket 5, the linkage end 1A moves forward and upward, so that the second sliding member 13 moves forward along the second connecting rod 12, thereby causing the first connecting rod 11 and the second connecting rod 12 to rotate relative to each other and fold in the front-to-back direction, thereby causing the sixth bracket 6 and the fifth bracket 5 to gradually fold in the front-to-back direction, thereby realizing the folding of the bottom bracket assembly and the folding of the entire vehicle.

Referring to Figures 1 to 4, the various parts of the cart of this embodiment are arranged as follows:

The first bracket 1 includes two first support rods 101 respectively arranged on the left and right sides and extending in the up-down direction. The second bracket 2 includes two second support rods 21 respectively arranged on the left and right sides. Here, the second support rods 21 on both sides are integrally arranged as U-shaped rods with openings facing downwards. The upper part of the second bracket 2 can be used for holding and pushing the cart. The lower part of the second support rod 21 is rotatably connected to the upper part of the first support rod 101 on the same side. When the cart is in the unfolded state, the first support rod 101 and the second support rod 21 on the same side extend in the same length direction.

The third bracket 3 includes two third support rods 31 which are arranged on the left and right sides and extend in the up-down direction, and a fourth cross bar 32 which is fixed between the lower parts of the third support rods 31 on both sides. Here, the third support rods 31 on both sides and the fourth cross bar 32 are integrally arranged to form a U-shaped frame with an opening facing upward. The fourth bracket 4 is supported on the fourth cross bar 32 and is rotatably connected to the third bracket 3 around the axis of the fourth cross bar 32 at the bottom position. A guide structure is also provided at the bottom of the fourth bracket 4 to provide sliding guidance for the first sliding member 7.

The fifth bracket 5 includes a fifth support rod 51 which is arranged on the left and right sides and extends in the up-down direction, a first crossbar 52 which is fixed between the upper parts of the fifth support rods 51 on both sides, and a second crossbar 53 which is fixed between the lower parts of the fifth support rods 51 on both sides. A set of second wheel assemblies 10 is arranged at the lower part of the fifth support rod 51 on each side, and the first sliding member 7 is rotatably arranged on the first crossbar 52 around the axis of the first crossbar 52. The sixth bracket 6 includes a sixth support rod 61 which is arranged on the left and right sides and extends in the up-down direction, and a third crossbar 62 which is fixed between the lower parts of the sixth support rods 61 on both sides. The upper part of the sixth support rod 61 on each side is rotatably connected to the upper part of the fifth support rod 51 on the same side. There are two sets of first wheel assemblies 9 which are both mounted on the third crossbar 62. A first connecting rod 11 and a second connecting rod 12 are arranged between the fifth supporting rod 51 and the sixth supporting rod 61 on each side. Correspondingly, a second sliding member 13 is arranged on the second connecting rod 12 on each side and is rotatably connected to the linkage end 1A at the lower part of the first supporting rod 101 on the corresponding side.

In summary, when the stroller of the present embodiment is in the unfolded state, the first bracket 1 and the second bracket 2 extend in the same length direction, the fourth bracket 4 is integrally located above the bottom bracket assembly, and cooperates with the third bracket 3 and the backrest frame 8 to provide a human body with a sitting support. Compared with the strollers in the prior art, the height of the bottom bracket assembly in the unfolded state can be relatively low under the condition of having the same sitting height, and correspondingly, the length of each rod in the bottom bracket assembly can be set relatively short, which is convenient for the shorter setting of each rod in the stroller, and is conducive to improving the overall lightness of the stroller, and reducing the size and volume after folding.

When the stroller needs to be folded, the second bracket 2 is driven to flip relative to the first bracket 1, and the first bracket 1 is flipped backward relative to the fifth bracket 5 of the bottom bracket assembly, so that the rods of the upper bracket assembly can be rotated and folded together and rotated toward the rear of the fifth bracket 5, so as to gradually fold together with the fifth bracket 5 in the front-to-back direction, and at the same time, the bottom bracket assembly itself is folded in the front-to-back direction. The folding operation is simple, and the folded stroller is shown in Figure 4. It has a compact structure and occupies less space, which is convenient for users to carry and use in daily life.

Example 2

5 to 8 , the difference between this embodiment and the first embodiment mainly lies in the linkage folding method of the bottom bracket assembly and the upper bracket assembly. Specifically, in this embodiment, the bottom bracket assembly includes not only the fifth bracket 5 and the sixth bracket 6, but also a third connecting rod 14, one end of the third connecting rod 14 is rotatably connected to the sixth bracket 6, and the other end of the third connecting rod 14 is rotatably connected to the driving end 1A of the first bracket 1.

When the first bracket 1 is rotated and folded relative to the fifth bracket 5, the linkage end 1A moves forward and upward, and the linkage causes the third connecting rod 14 to rotate relative to the sixth bracket 6, so that the sixth bracket 6 and the fifth bracket 5 are gradually folded in the front-to-back direction, thereby realizing the folding of the bottom bracket assembly and the folding of the entire vehicle.

Example 3

Although not shown in the figure, the main difference between this embodiment and the first and second embodiments is that the carrier of this embodiment is a folding chair, wherein the lower part of the sixth bracket 6 and the lower part of the fifth bracket 5 are not provided with wheel assemblies.

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 (10)

1. A carrier having an unfolded state and a folded state, characterized in that: the carrier comprises a bottom bracket assembly that can be folded in the front-to-back direction, and an upper bracket assembly that can be folded relative to the bottom bracket assembly, and when the carrier is in the unfolded state, the upper bracket assembly comprises a first bracket, a second bracket, and a third bracket that each extend in the up-down direction, and a fourth bracket that extends in the front-to-back direction, and a first sliding member that is slidably provided on the fourth bracket along the length extension direction of the fourth bracket, The upper portion of the first bracket is rotatably connected to the lower portion of the second bracket, the third bracket is rotatably connected between the front portion of the fourth bracket and the second bracket, the rear portion of the fourth bracket is rotatably connected to the first bracket, the bottom bracket assembly at least includes a fifth bracket extending in the up-down direction, the first sliding member is rotatably connected to the upper portion of the fifth bracket, and the first bracket is rotatably connected to the fifth bracket, When the carrier is in a folded state, the bottom bracket assembly is folded in the front-to-back direction, and the first bracket, the second bracket, the third bracket, the fourth bracket and the fifth bracket are folded in the front-to-back direction. 2. The carrier according to claim 1 is characterized in that: when the carrier is in an unfolded state, the first sliding member is located at a first position on the fourth bracket; when the carrier is in a folded state, the first sliding member is located at a second position on the fourth bracket, and along the length extension direction of the fourth bracket, the first position is located behind the second position. 3. The carrier according to claim 2 is characterized in that: the upper bracket assembly also includes a backrest frame extending in the up-down direction, the lower part of the backrest frame is rotatably connected to the first sliding member, when the carrier is in the unfolded state, the fourth bracket, the backrest frame and the third bracket cooperate with each other to form a seat device that can provide support for the human body, and when the carrier is in the folded state, the backrest frame and the fourth bracket are retracted together. 4. The carrier according to claim 3 is characterized in that: the fourth bracket has a sitting surface, the backrest frame has a backrest surface and a back side surface which are arranged on two different sides of its own thickness direction, and when the carrier is in the unfolded state, the sitting surface faces upward and the backrest surface faces forward; when the carrier is in the folded state, the sitting surface faces backward, and the back side surface is opposite to the sitting surface. 5. The carrier according to claim 2 is characterized in that: the lower portion of the third bracket is rotatably connected to the front portion of the fourth bracket around a first center line, the rear portion of the fourth bracket is rotatably connected to the first bracket around a second center line, and during the conversion of the carrier between the unfolded state and the folded state, the first sliding member is always located between the first center line and the second center line along the front-to-back direction. 6. The carrier according to claim 1 is characterized in that: when the carrier is in the unfolded state, the fifth bracket extends forwardly and tilted from bottom to top, and/or the fourth bracket is located as a whole above the bottom bracket assembly, and/or the first bracket and the second bracket extend along the same length direction. 7. The vehicle according to any one of claims 1 to 6 is characterized in that: the bottom bracket assembly also includes a sixth bracket extending in the up-down direction, the upper portion of the sixth bracket is rotatably connected to the upper portion of the fifth bracket, the lower portion of the fifth bracket and the lower portion of the sixth bracket are both provided with wheel assemblies, and when the bottom bracket assembly is folded in the front-to-back direction, the fifth bracket and the sixth bracket are folded in the front-to-back direction. 8. The carrier according to claim 7 is characterized in that: the first bracket and the fifth bracket intersect with each other and are connected to rotate around a third center line at the intersection, the first bracket also has a linkage end located below the third center line, the linkage end is interconnected with the bottom bracket assembly and is configured to, during the process of the first bracket rotating and retracting relative to the fifth bracket around the third center line, be linked to cause the fifth bracket and the sixth bracket to be retracted in the front-to-back direction. 9. The vehicle according to claim 8 is characterized in that: the bottom bracket assembly also includes a first link and a second link, one end of the first link is rotatably connected to one end of the second link, the other end of the first link is rotatably connected to the sixth bracket, the other end of the second link is rotatably connected to the fifth bracket, and a second sliding member is rotatably provided on the linkage end, and the second sliding member can be slidably provided on the second link along the length extension direction of the second link. 10. The vehicle according to claim 8, characterized in that: the bottom bracket assembly further comprises a third connecting rod, one end of the third connecting rod is rotatably connected to the sixth bracket, and the other end of the third connecting rod is rotatably connected to the linkage end.