Cart

Abstract

The utility model discloses a cart which comprises a push rod frame, a bottom frame device and a wheel assembly arranged at the bottom of the bottom frame device, a containing space is formed on the bottom frame device, the bottom frame device comprises a bottom frame body, and the containing space is defined by the bottom frame body. The containing space is formed by the bottom frame main body, the containing space can be used for containing objects when a common cart is used or can be used for supporting when a child sits and lies, the use scene and the use mode of the cart are expanded, and convenience is brought to daily use of a user.

Description

Technical Field

[0001] This utility model relates to the field of transportation vehicles, specifically to a trolley. Background Technology

[0002] Strollers provide convenience for people to take children out. In the current technology, strollers are equipped with seats or additional seat bags for children to sit in. Children can sit or lie down in strollers, and the way they sit is relatively simple. Utility Model Content

[0003] The purpose of this invention is to provide a trolley to solve one or more problems of the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a trolley, the trolley including a push rod frame, a base frame device, and a wheel assembly disposed at the bottom of the base frame device, wherein an accommodating space is formed on the base frame device, wherein the base frame device includes a base frame body, and the accommodating space is enclosed by the base frame body.

[0005] Preferably, the base frame body includes a first support and a third support. The first support extends obliquely in the vertical direction, and the third support extends horizontally. The upper part of the first support is connected to the front part of the third support, and the space enclosed by the first support and the third support forms the accommodating space.

[0006] Furthermore, the first bracket extends upwards gradually from front to back, the push rod bracket is connected to the third bracket, the push rod bracket has at least a pushing use state, the push rod bracket is in the pushing use state, and the extension direction of the push rod bracket is the same as the extension direction of the first bracket.

[0007] In some embodiments, the base frame assembly further includes a second bracket, the upper part of which is connected to the third bracket;

[0008] The first support extends upwards gradually from front to back, and the second support extends upwards gradually from back to front. The upper part of the first support is connected to one end of the third support. The upper part of the second support is connected to the third support and is spaced apart from the upper part of the first support. At least part of the third support is located behind the connection position between the second support and the third support.

[0009] In some embodiments, the trolley further includes a seat frame, with a mounting base provided on the first support and / or the second support, the mounting base being located within the accommodating space, and the seat frame being able to be connected to the mounting base in a cooperative manner;

[0010] The seat frame includes a seat and a backrest. When the seat frame is connected to the mounting base, the backrest gradually tilts upward from front to back and is supported at the rear of the third bracket; and / or, when the seat frame is connected to the mounting base, the seat is vertically higher than the bottom surface of the accommodating space.

[0011] In some embodiments, the distance between the upper part of the first bracket and the upper part of the second bracket is less than the distance between the lower part of the first bracket and the lower part of the second bracket; the wheel assembly includes a first wheel assembly and a second wheel assembly, the first wheel assembly being disposed at the lower part of the first bracket and the second wheel assembly being disposed at the lower part of the second bracket; and / or,

[0012] The upper part of the first bracket and the upper part of the second bracket are rotatably connected to the third bracket, and the base frame device further includes a fourth bracket, which is rotatably connected between the first bracket and the second bracket.

[0013] In some embodiments, the base frame device further includes a swing frame, which is movably connected to the base frame body and can extend outward relative to the base frame body to increase the size of the accommodating space;

[0014] The swing frame is rotatably connected to the first support. The swing frame has a first state of being retracted relative to the base frame body and a second state of being open relative to the base frame body. In the first state, the swing frame and the first support are retracted to each other. In the second state, the swing frame is open relative to the first support in a direction away from the third support, and the size of the accommodating space increases.

[0015] And / or, the trolley further includes a connector that is fixedly connected between the third bracket and the first bracket and defines the accommodating space.

[0016] In some embodiments, the third support is a U-shaped frame extending in the front-to-back direction with its opening facing forward, and the swing frame is a U-shaped frame extending in the vertical direction with its opening facing downward. When the swing frame is in the first state, the swing frame is folded inside the first support and is in the same direction of extension as the first support.

[0017] In some embodiments, the trolley further includes a seat frame having a first mounting position and a second mounting position relative to the base frame assembly. The first mounting position is vertically higher than the second mounting position. When the seat frame is mounted in the first mounting position, the seat frame is located above the accommodating space. When the seat frame is mounted in the second mounting position, at least a portion of the seat frame is located within the accommodating space.

[0018] In some embodiments, the push rod bracket is connected to the upper part of the base frame body via a connecting structure, and when the seat bracket is installed in the first installation position, the seat bracket is connected to the push rod bracket; and / or,

[0019] The push rod frame has a dragging mode that allows it to rotate freely relative to the base frame device, and a pushing mode that is fixed relative to the base frame device.

[0020] Due to the application of the above technical solution, the present invention has the following advantages: The stroller of the present invention has a base frame main body on its base frame device forming a storage space, which can be used as a place to store items when the stroller is in general use, or to provide support for children when they are sitting or lying down, thus expanding the usage scenarios and usage methods of the stroller and bringing convenience to users' daily use. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of a trolley according to an embodiment of the present utility model, wherein the swing frame is in a first state and the push rod frame is in a pushing and using state, and the seat frame is installed in a first installation position;

[0023] Figure 2 for Figure 1 Based on this, a three-dimensional structural diagram of the seat frame after it has been moved to the second installation position;

[0024] Figure 3 for Figure 2 Based on this, after the swing frame is switched to the second state and the push rod frame is in the towing use state, the three-dimensional structure diagram of the trolley is shown.

[0025] In the above figures: 100, base frame assembly; 200, accommodating space; 1, first support; 11, first support rod; 12, first crossbar; 2, second support; 21, second support rod; 22, second crossbar; 3, third support; 31, third support rod; 32, third crossbar; 4, fourth support; 41, fourth support rod; 5, swing frame; 51, swing rod; 52, connecting rod; 6, push rod frame; 7, seat frame; 71, seat; 72, backrest; 8, mounting base; 9, connecting structure; 10, first wheel assembly; 20, second wheel assembly. Detailed Implementation

[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is intended to aid in understanding the present invention, but does not constitute a limitation thereof.

[0027] In this article, the terms "up," "down," "left," and "right," etc., indicate the orientation or positional relationship based on the position of the trolley. Figure 1 The orientation or positional relationship observed when a child is sitting in the seat frame is for the purpose of describing this application and simplifying the description only, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Figures 1 to 3 The diagrams are drawn to scale. To keep the instructions concise, the proportions of each component are not listed individually. However, the proportions and positions of each component should be considered part of the contents of this instruction manual.

[0029] See Figures 1 to 3 The stroller shown includes a push rod frame 6, a base frame assembly 100, and a wheel assembly located at the bottom of the base frame assembly 100. The base frame assembly 100 has a receiving space 200. The base frame assembly 100 includes a base frame body, which encloses the aforementioned receiving space 200, directly providing support for placing items or accommodating a child sitting or lying down.

[0030] Specifically, the main body of the base frame includes a first support 1 and a third support 3. The first support 1 extends inclinedly in the vertical direction, and the third support 3 extends horizontally. The upper part of the first support 1 is connected to the front part of the third support 3. The space enclosed by the first support 1 and the third support 3 forms an accommodating space 200.

[0031] In this embodiment, the first bracket 1 gradually extends upward from front to back at an upward angle, and the push rod bracket 6 is connected to the third bracket 3. The push rod bracket 6 has at least a pushing use state, in which the extension direction of the push rod bracket 6 is the same as the extension direction of the first bracket 1.

[0032] In this embodiment, the base frame device 100 further includes a swing frame 5, which is movably connected to the base frame body. The swing frame 5 can extend outward relative to the base frame body to increase the size of the accommodating space 200. Specifically, the swing frame 5 is rotatably connected to the first support 1. The swing frame 5 has a first state of being retracted relative to the base frame body and a second state of being open relative to the base frame body. When the swing frame 5 is in the first state, the swing frame 5 and the first support 1 are retracted to each other, and the accommodating space 200 is mainly formed by the various rods on the base frame body. When the swing frame 5 is in the second state, the swing frame 5 opens relative to the first support 1 in a direction away from the second support 2 and the third support 3, so that the accommodating space 200 extends outward in a direction away from the base frame body, thereby increasing the size of the accommodating space 200 so that the accommodating space 200 can accommodate at least one child sitting / lying down.

[0033] The base frame device 100 also includes a second support 2, the upper part of which is connected to a third support 3. In this embodiment, the first support 1 extends upward gradually from front to back, and the second support 2 extends upward gradually from back to front. The upper part of the first support 1 is connected to one end of the third support 3. The upper part of the second support 2 is connected to the third support 3 and is spaced apart from the upper part of the first support 1. At least part of the third support 3 is located behind the connection position between the second support 2 and the third support 3.

[0034] The distance between the upper part of the first support 1 and the upper part of the second support 2 is smaller than the distance between the lower part of the first support 1 and the lower part of the second support 2. The wheel assembly includes a first wheel assembly 10 and a second wheel assembly 20. The first wheel assembly 10 is located at the lower part of the first support 1 and the second wheel assembly 20 is located at the lower part of the second support 2, so that the overall structure of the base frame device 100 is stable and can provide stable and reliable load-bearing support.

[0035] Specifically, in this embodiment, the upper parts of the first support 1 and the upper parts of the second support 2 are rotatably connected to the third support 3, and the base frame body also includes a fourth support 4, which is rotatably connected between the first support 1 and the second support 2. Here, as... Figure 2 As shown, the upper part of the first support 1 is rotatably connected to the front part of the third support 3 at point A, the upper part of the second support 2 is rotatably connected to the middle part of the third support 3 at point B, one end of the fourth support 4 is rotatably connected to the upper part of the first support 1 at point D, and the other end of the fourth support 4 is rotatably connected to the lower part of the second support 2 at point E. In this way, a linkage mechanism is formed between ABDE, so that the first support 1, the second support 2, the third support 3 and the fourth support 4 can rotate relative to each other to realize the unfolding and folding of the main body of the base frame.

[0036] The trolley also includes a seat frame 7, which is detachably connected to the base frame assembly 100. The seat frame 7 has a first mounting position and a second mounting position relative to the base frame assembly 100, with the first mounting position higher than the second mounting position. When the seat frame 7 is mounted in the first mounting position, it is positioned above the accommodating space 200. Figure 1 As shown; when the seat frame 7 is installed in the second installation position, at least a portion of the seat frame 7 is located within the accommodating space 200, such as... Figure 2 , Figure 3 As shown.

[0037] Specifically, the first installation position is located above the third bracket 3, which makes the entire seat frame 7 located above the base frame device 100, and the seat frame 7 can provide a higher sitting height; the second bracket 2 is provided with a mounting seat 8, which is located within the accommodating space 200, and the seat frame 7 can be connected to the mounting seat 8 in a cooperative manner, and the position of the mounting seat 8 forms the aforementioned second installation position.

[0038] In other embodiments, a mounting base 8 is also provided on the first bracket 1, and the seat bracket 7 can be connected to the mounting base 8 on the first bracket 1. The mounting base 8 described above can be provided on both the first bracket 1 and the third bracket 3 to install the seat bracket 7, or only one of them can be provided with a mounting base 8 for installing the seat bracket 7.

[0039] The seat frame 7 specifically includes a seat 71 and a backrest 72. When the seat frame 7 is connected to the mounting base 8, the backrest 72 gradually tilts upward from front to back and is supported at the rear of the third bracket 3. This allows the third bracket 3 to provide auxiliary support behind the seat frame 7 to provide stable support. The seat 71 is vertically higher than the bottom surface of the accommodating space 200, which can provide children with hard support and at the same time make it convenient for children to rest their feet when sitting, making the sitting posture more comfortable.

[0040] The push rod frame 6 is connected to the upper part of the base frame body via a connecting structure 9, specifically to the third bracket 3. The connecting structure 9 has a locking mechanism to lock the push rod frame 6 relative to the third bracket 3. This allows the push rod frame 6 to have both a fixed, pushable state relative to the base frame body and a stable, pushable state. Figure 1 , Figure 2 As shown, it also has a dragging mode that allows it to rotate freely relative to the main frame, making it convenient for users to adjust and switch according to specific usage needs.

[0041] In this embodiment of the trolley, the components are specifically arranged as follows: Figures 1 to 3 The cart shown is in its unfolded state as a reference.

[0042] The first support 1 is a U-shaped frame with its opening facing upwards and backwards. It has two first support rods 11 located on the left and right sides and extending vertically, and a first crossbar 12 fixed between the lower parts of the two first support rods 11. There are two sets of first wheel assemblies 10 located at the bottom of the left and right sides of the first support 1. The second support 2 has two second support rods 21 located on the left and right sides and extending vertically, and a second crossbar 22 fixed between the lower parts of the two second support rods 21. There are two sets of second wheel assemblies 20 located at the bottom of the two second support rods 21. The third support 3 is a U-shaped frame with its opening facing forwards. It has two third support rods 31 located on the left and right sides and extending vertically, and a third crossbar 32 fixed between the rear parts of the two third support rods 31. The fourth support 4 includes two fourth support rods 41 located on the left and right sides. On the left and right sides of the trolley, the first support rod 11, the third support rod 31, the second support rod 21 and the fourth support rod 41 are rotatably connected to each other, so as to realize the rotatable connection of each component in the main body of the base frame.

[0043] The swing frame 5 is specifically a U-shaped frame that extends in the vertical direction and has an opening facing downward. It has two swing rods 51 on the left and right sides respectively, and a connecting rod 52 fixed between the upper ends of the two swing rods 51. The swing frame 5 is located between the two first support rods 11 in the left and right direction. The lower parts of the two swing rods 51 are rotatably connected to the first support rods 11 on the corresponding sides respectively.

[0044] Without illustration, the trolley also includes a connector, which is fixedly connected between the third support 3, the first support 1 and the swing frame 5 and defines the accommodating space 200. When the swing frame 5 swings forward relative to the first support 1, the accommodating space 200 extends forward in size. In specific settings, the connector is made of a flexible component such as a cloth cover.

[0045] The stroller in this embodiment has the following representative usage methods:

[0046] like Figure 1 As shown, the push rod frame 6 is fixed relative to the base frame device, the swing frame 5 is in the first state, the seat frame 7 is installed in the first installation position, the seat frame 7 provides a place for the child to sit, the lower storage space 200 is used for storing items, and the user can push the stroller from the rear.

[0047] like Figure 2 As shown, in Figure 1 Based on this, the seat frame 7 is installed on the mounting seat 8 within the accommodating space 200. The child sits on the seat frame 7 with part of his body inside the accommodating space 200, and the user can push the stroller from the rear.

[0048] Appendix Figure 3 As shown, in Figure 2Based on this, the swing frame 5 is flipped forward relative to the first support 1 and opened forward, so that the accommodating space 200 is expanded forward. Then the push rod frame 6 is reversed and converted into a state in which it can rotate freely relative to the base frame device, and the push rod frame 6 is dragged in front of the trolley.

[0049] Of course, in Figure 1 , Figure 2 Based on this, the push rod frame 6 can also be converted to a state of free rotation relative to the base frame device to drag the trolley, and the swing frame 5 can be flipped to expand the accommodating space 200.

[0050] In summary, the stroller of this utility model has a simple structure and can realize the conversion of multiple usage states. It can also realize the conversion of the accommodating space 200 to provide support for children in different states. Furthermore, the push rod frame 6 in the stroller can also be converted into a dragging state to meet the different needs of users when pushing and dragging.

[0051] It should be noted that "rotational connection" in the above embodiments refers to pivot connection, unless the context clearly indicates other rotational connection methods.

[0052] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made based on the essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A trolley, characterized in that: The trolley includes a push rod frame, a base frame assembly, and a wheel assembly located at the bottom of the base frame assembly. The base frame assembly has an accommodating space, wherein the base frame assembly includes a base frame body that encloses the accommodating space. The base frame includes a first support and a third support. The first support extends obliquely in the vertical direction, and the third support extends horizontally. The upper part of the first support is connected to the front part of the third support, and the space enclosed by the first support and the third support forms the accommodating space.

2. The trolley according to claim 1, characterized in that: The first bracket extends upwards gradually from front to back, and the push rod bracket is connected to the third bracket. The push rod bracket has at least a pushing use state. When the push rod bracket is in the pushing use state, the extension direction of the push rod bracket is the same as the extension direction of the first bracket.

3. The trolley according to claim 1, characterized in that, The base frame device further includes a second bracket, the upper part of which is connected to the third bracket; The first support extends upwards gradually from front to back, and the second support extends upwards gradually from back to front. The upper part of the first support is connected to one end of the third support. The upper part of the second support is connected to the third support and is spaced apart from the upper part of the first support. At least part of the third support is located behind the connection position between the second support and the third support.

4. The trolley according to claim 3, characterized in that: The trolley also includes a seat frame, and the first bracket and / or the second bracket are provided with a mounting seat, the mounting seat being located within the accommodating space, and the seat frame being able to be connected to the mounting seat in a cooperative manner; The seat frame includes a seat and a backrest. When the seat frame is connected to the mounting base, the backrest gradually tilts upward from front to back and is supported at the rear of the third bracket; and / or, when the seat frame is connected to the mounting base, the seat is vertically higher than the bottom surface of the accommodating space.

5. The trolley according to claim 3, characterized in that: The distance between the upper part of the first bracket and the upper part of the second bracket is less than the distance between the lower part of the first bracket and the lower part of the second bracket; the wheel assembly includes a first wheel assembly and a second wheel assembly, the first wheel assembly being disposed at the lower part of the first bracket and the second wheel assembly being disposed at the lower part of the second bracket; and / or, The upper part of the first bracket and the upper part of the second bracket are rotatably connected to the third bracket, and the base frame device further includes a fourth bracket, which is rotatably connected between the first bracket and the second bracket.

6. The trolley according to claim 1, characterized in that, The base frame device also includes a swing frame, which is movably connected to the base frame body. The swing frame can extend outward relative to the base frame body to increase the size of the accommodating space. The swing frame is rotatably connected to the first support. The swing frame has a first state of being retracted relative to the base frame body and a second state of being open relative to the base frame body. In the first state, the swing frame and the first support are retracted to each other. In the second state, the swing frame is open relative to the first support in a direction away from the third support, and the size of the accommodating space increases. And / or, the trolley further includes a connector that is fixedly connected between the third bracket and the first bracket and defines the accommodating space.

7. The trolley according to claim 6, characterized in that: The third support is a U-shaped frame that extends in the front-to-back direction and has its opening facing forward. The swing frame is a U-shaped frame that extends in the up-down direction and has its opening facing downward. When the swing frame is in the first state, the swing frame is folded inside the first support and is in the same direction of extension as the first support.

8. The trolley according to claim 1, characterized in that: The trolley also includes a seat frame, which has a first mounting position and a second mounting position relative to the base frame. The first mounting position is higher than the second mounting position in the vertical direction. When the seat frame is installed in the first mounting position, the seat frame is located above the accommodating space. When the seat frame is installed in the second mounting position, at least a portion of the seat frame is located within the accommodating space.

9. The trolley according to claim 8, characterized in that: The push rod frame is connected to the upper part of the base frame body through a connecting structure. When the seat frame is installed in the first installation position, the seat frame is connected to the push rod frame.

10. The trolley according to claim 8, characterized in that: The push rod frame has a dragging mode that allows it to rotate freely relative to the base frame device, and a pushing mode that is fixed relative to the base frame device.

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