Frame structure, cart and baby crib

Abstract

The utility model discloses a frame structure, a cart and a baby crib. The frame structure comprises a front frame set and a rear frame set. The bottom frame group is connected with the front frame group and the rear frame group; and the first side wall group is movably connected with the front frame group and the rear frame group in the vertical direction. According to the frame structure, the first side wall set can move up and down, and the function of the frame structure can be expanded.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and particularly relates to a frame structure, a trolley and a crib. Background Art

[0002] At present, with the progress of society, the leisure concept of Chinese people is also quietly changing. Outdoor cycling and camping have gradually become the symbols of a fashionable and healthy life. The frame structures in related technologies can have a function of carrying goods, but the functions are single. Summary of the Utility Model

[0003] An object of the present application is to provide a frame structure, a trolley and a crib.

[0004] The frame structure according to an embodiment of the present application includes: a front frame group and a rear frame group, the front frame group and the rear frame group are distributed in the front-rear direction, and an accommodation space is provided between the front frame group and the rear frame group; a bottom frame group, the bottom frame group connects the front frame group and the rear frame group, and the bottom frame group is arranged below the accommodation space; a first side enclosure group, the first side enclosure group is arranged on one side of the accommodation space in the left-right direction, and the first side enclosure group is movably connected to the front frame group and the rear frame group in the up-down direction.

[0005] In the frame structure according to an embodiment of the present application, the first side enclosure group can move up and down, which can expand the functions of the frame structure.

[0006] In addition, the frame structure according to the above embodiment of the present application may further have the following additional technical features:

[0007] In some embodiments, the first side enclosure group has an upper stop position and a lower stop position, the first side enclosure group can move up and down between the upper stop position and the lower stop position, and the upper stop position is higher than the lower stop position and the bottom frame group.

[0008] In some embodiments, the first side enclosure group is connected to the upper ends of the front frame group and the rear frame group at the upper stop position; and / or, the height h1 of the lower stop position and the top surface height h2 of the bottom frame group satisfy: h1≤h2; or, h2≤a*h2, a≤2.

[0009] In some embodiments, the frame structure includes a first locking member, the first locking member is arranged on one of the front frame group and the first side enclosure group, and when the first side enclosure group is at the upper stop position, the first locking member locks to the other of the front frame group and the first side enclosure group to limit the first side enclosure group from moving in the up-down direction;

[0010] And / or, the frame structure includes a second locking member disposed on one of the rear frame group and the first side enclosure group. When the first side enclosure group is in the upper stop position, the second locking member locks to the other of the rear frame group and the first side enclosure group to limit the up-and-down movement of the first side enclosure group.

[0011] In some embodiments, the frame structure further includes a first fabric, a second fabric, and a coupling member. The first fabric connects the front frame group and / or the rear frame group. The second fabric connects the first side enclosure group. The coupling member is used for the combination and separation of the first fabric and the second fabric, and the coupling member is connected to the first side enclosure group.

[0012] In some embodiments, the coupling member includes a first rack, a second rack, and a coupling portion. The first rack is connected to the first fabric. The second rack is connected to the second fabric. The coupling portion connects the first rack and the second rack and is movable in the up-and-down direction to combine and separate the first rack and the second rack. The coupling portion is connected to the first side enclosure group.

[0013] In some embodiments, the coupling portion is not higher than the first side enclosure group; or, the coupling portion is lower than the first side enclosure group.

[0014] In some embodiments, the first fabric extends in the up-and-down direction and its lower end is connected to the bottom frame group. One end of the second fabric is connected to the bottom frame group, and the other end is connected to the first side enclosure group and moves up and down with the first side enclosure group. The coupling members are provided on both the front and rear sides of the second fabric.

[0015] In some embodiments, the frame structure further includes: a second side enclosure group, which connects the front frame group and the rear frame group, and the second side enclosure group and the first side enclosure group are distributed left and right.

[0016] In some embodiments, the end of the second side enclosure group is relatively fixed to or movable in the up-and-down direction with respect to the front frame group and the rear frame group.

[0017] The trolley according to the embodiment of the present application includes the aforementioned frame structure.

[0018] The crib according to the embodiment of the present application includes the aforementioned frame structure. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the frame structure of an embodiment of the present application, in which the first side enclosure group is disposed in the upper stop position.

[0020] Figure 2 is a schematic diagram of the frame structure of an embodiment of the present application, in which the first side enclosure group is disposed in the lower stop position.

[0021] Figure 3 It is a left view of the frame structure of an embodiment of the present application, wherein the first side enclosure is disposed at the lower stop position.

[0022] Figure 4 It is a schematic diagram of the frame structure of an embodiment of the present application.

[0023] Figure 5 It is a schematic diagram of the first side enclosure group of the frame structure of an embodiment of the present application.

[0024] Figure 6 It is a schematic diagram of the first sliding part of the first side enclosure group of the frame structure of an embodiment of the present application.

[0025] Figure 7 It is a schematic diagram of the first sliding part of the first side enclosure group of the frame structure of an embodiment of the present application.

[0026] Figure 8 It is a schematic diagram of the first side enclosure group of the frame structure of an embodiment of the present application.

[0027] Figure 9 It is a partial schematic diagram of the cross-sectional view of the first side enclosure group of the frame structure of an embodiment of the present application.

[0028] Figure 10 It is a schematic diagram of the chassis group of the frame structure of an embodiment of the present application.

[0029] Figure 11 It is a schematic diagram of the frame structure of an embodiment of the present application.

[0030] Reference numerals:

[0031] Frame structure 100, front frame group 10, rear frame group 20, chassis group 30, first chassis 31, first upper chassis 311, first lower chassis 312, second chassis 32, second upper chassis 321, second lower chassis 322, second connecting part 33, support 331, third slider 332, third rod part 333, fourth rod part 334, locking part 335, first side enclosure group 40, first sliding part 401, first sliding sleeve 4011, first locking part 4012, second sliding part 402, second sliding sleeve 4021, second locking part 4022, connecting rod assembly 403, first rod part 41, second rod part 42, first connecting part 43, mounting seat 431, first slider 432, second slider 433, first groove part 4301, first sliding groove 4302, first locking groove 4303, second groove part 4304, second sliding groove 4305, second locking groove 4306, handle group 51, basket group 52, front wheel group 53, rear wheel group 54, seat 55, dining plate 56, umbrella cover group 57, second side enclosure group 60. Detailed implementation manners

[0032] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation to the present application.

[0033] As Figure 1 and Figure 2 shown in, according to the frame structure of the embodiments of the present application, it includes: a front frame group 10, a rear frame group 20, and a bottom frame group 30. The front frame group 10 and the rear frame group 20 are distributed along the front and rear directions. There is an accommodation space between the front frame group 10 and the rear frame group 20. The bottom frame group 30 connects the front frame group 10 and the rear frame group 20, and the bottom frame group 30 is disposed below the accommodation space. The bottom frame group 30 can serve as the bottom support of the frame structure and provide a support platform for items and the like accommodated in the frame structure. In addition, the frame structure may further include a first side enclosure group 40. The first side enclosure group 40 is disposed on one side of the accommodation space along the left and right directions, and the first side enclosure group 40 is movably connected to the front frame group 10 and the rear frame group 20 in the up and down directions. In one mode of the frame structure (for example, a trolley for transporting items, a crib for a baby to rest, etc.), the first side enclosure group 40 can be set at a relatively high position to provide side protection for the accommodation space in the frame structure; in another working mode of the frame structure (for example, using the trolley for rest, the crib used as a seat, etc.), the first side enclosure group 40 can be disposed at a relatively lower position to facilitate the use of the frame structure.

[0034] According to the frame structure of the embodiments of the present application, the first side enclosure group 40 can move up and down, which can meet different usage scenarios of the frame structure, expand the functions of the frame structure, and facilitate the use of the frame structure.

[0035] In some embodiments, the first side enclosure group 40 has an upper stop position and a lower stop position. The first side enclosure group 40 can move up and down between the upper stop position and the lower stop position in the up and down directions. The upper stop position is higher than the lower stop position, and the upper stop position is higher than the bottom frame group 30. By setting the upper stop position and the lower stop position, the range of movement of the first side enclosure group 40 in the up and down directions can be limited, preventing the first side enclosure group 40 from disengaging from the front frame group 10 and the rear frame group 20, facilitating the use of the frame structure, and improving the stability of the frame structure.

[0036] Among them, the first side enclosure group 40 is connected to the upper ends of the front frame group 10 and the rear frame group 20 at the upper stop position. The first side enclosure group 40 can be used to stably connect the front frame group 10 and the rear frame group 20, improving the stability of the frame structure. In addition, it can also increase the storage space of the frame structure and facilitate the use of the frame structure.

[0037] In addition, as Figure 3, the height h1 of the lower dead center satisfies h1 ≤ h2 with the top surface height h2 of the underframe group 30; or, h2 ≤ a * h2, where a ≤ 2. Here, a can be set to 0.5, 0.6, 0.71, 0.8, 0.9, 1.2, 1.5, or 2, which can facilitate moving the first side enclosure group 40 downward to a lower position. At this time, the frame structure forms an open form on the side and top surfaces, and the frame structure forms the shape of a seat 55. At this time, the frame structure can be used as the seat 55, thereby expanding the user's needs.

[0038] For example Figures 4 to 6 , in some embodiments, the frame structure can be provided with a locking structure to lock the first side enclosure group 40 to maintain the first side enclosure group 40 at the upper dead center. The locking structure can include but is not limited to the following examples.

[0039] Example 1: The frame structure includes a first locking member 4012. The first locking member 4012 is provided on one of the front frame group 10 and the first side enclosure group 40. When the first side enclosure group 40 is at the upper dead center, the first locking member 4012 locks to the other of the front frame group 10 and the first side enclosure group 40 to limit the first side enclosure group 40 from moving in the up and down direction. The first locking member 4012 can be used to lock the first side enclosure group 40 to maintain the stability of the frame structure and facilitate use.

[0040] Example 2: The frame structure can include a second locking member 4022. The second locking member 4022 is provided on one of the rear frame group 20 and the first side enclosure group 40. When the first side enclosure group 40 is at the upper dead center, the second locking member 4022 locks to the other of the rear frame group 20 and the first side enclosure group 40 to limit the first side enclosure group 40 from moving in the up and down direction.

[0041] Example 3: The frame structure can include a first locking member 4012 and a second locking member 4022. The structural forms of the first locking member 4012 and the second locking member 4022 can refer to Example 1 and Example 2.

[0042] In addition, the locking structure of the present application can also be set in other forms.

[0043] For example Figures 4 to 6 , the first side enclosure group 40 includes a first sliding part 401, a second sliding part 402, and a connecting rod assembly 403. The first sliding part 401 and the second sliding part 402 are respectively connected to both ends of the connecting rod assembly 403. The first sliding part 401 is slidably connected to the front frame group 10, and the second sliding part 402 is slidably connected to the rear frame group 20.

[0044] Among them, the first sliding part 401 may include a first sliding sleeve 4011. The front frame group 10 may include a first connecting rod. The first connecting rod extends in the up and down direction. The first sliding sleeve 4011 is sleeved outside the first connecting rod and is slidable in the up and down direction. The second sliding part 402 may include a second sliding sleeve 4021. The rear frame group 20 may include a second connecting rod. The second connecting rod extends in the up and down direction. The second sliding sleeve 4021 is sleeved outside the second connecting rod and is slidable in the up and down direction.

[0045] The first locking member 4012 may be disposed on the first sliding sleeve 4011. For example, the first locking member 4012 may be rotatably connected to the first sliding sleeve 4011. The first connecting rod may be provided with a corresponding locking hole. When the first side enclosure group 40 is in the upper stop position, the first locking member 4012 may pass through the locking hole to lock the first side enclosure group 40. Among them, an elastic member may be disposed between the first locking member 4012 and the first sliding sleeve 4011. The elastic member is used to elastically connect the first locking member 4012 so that the mating part of the first locking member 4012 has a force to abut against the first connecting rod. So that when the first sliding sleeve 4011 slides to the corresponding position, the mating part of the first locking member 4012 can automatically extend into the locking hole to achieve locking.

[0046] Optionally, the second locking member 4022 may also be disposed on the second sliding sleeve 4021. For example, the second locking member 4022 may be rotatably connected to the second sliding sleeve 4021. The second connecting rod may be provided with a corresponding locking hole. When the second side enclosure group 60 is in the upper stop position, the second locking member 4022 may pass through the locking hole to lock the second side enclosure group 60. Among them, an elastic member may be disposed between the second locking member 4022 and the second sliding sleeve 4021. The elastic member is used to elastically connect the second locking member 4022 so that the mating part of the second locking member 4022 has a force to abut against the second connecting rod. So that when the second sliding sleeve 4021 slides to the corresponding position, the mating part of the second locking member 4022 can automatically extend into the locking hole to achieve locking.

[0047] In some embodiments of the present application, the frame structure further includes a first fabric, a second fabric and a coupling member. The first fabric is connected to the front frame group 10 and / or the rear frame group 20. The second fabric is connected to the first side enclosure group 40. The coupling member is used for the combination and separation of the first fabric and the second fabric. The coupling member is connected to the first side enclosure group 40. The combination and separation of the first fabric and the second fabric can be realized by the up and down movement of the first side enclosure group 40, and the steps of opening and closing the side of the frame structure are simplified, which is convenient for the use of the frame structure.

[0048] Specifically, when it is necessary to open the surface where the second fabric is located, the first side surround group 40 is controlled to move downward, driving the coupling member to separate the first fabric and the second fabric. At the same time, the downward movement of the first side surround group 40 will open the second fabric, so as to smoothly open the surface where the second fabric is located in the frame structure; when it is necessary to close the surface where the second fabric is located, the first side surround group 40 is controlled to move upward, driving the coupling member to combine the first fabric and the second fabric. At the same time, the upward movement of the first side surround group 40 will drive the second fabric to close, so as to smoothly close the surface where the second fabric is located in the frame structure.

[0049] Therefore, when opening the second fabric, it is not necessary to operate the coupling member to separate the first fabric and the second fabric before moving the first side surround group 40 downward; when closing the second fabric, after the first side surround group 40 moves upward to the upper dead center, it is no longer necessary to operate the coupling member to combine the first fabric and the second fabric. Opening and closing the second fabric only requires moving the first side surround group 40 up and down, which is convenient to operate.

[0050] Optionally, the coupling member includes a first rack, a second rack, and a coupling portion. The first rack is connected to the first fabric, the second rack is connected to the second fabric, and the coupling portion is connected to the first rack and the second rack and is movable in the up and down direction to combine and separate the first rack and the second rack. The coupling portion is connected to the first side surround group 40. The first side surround group 40 can be used to drive the coupling portion to realize the quick separation and combination of the first fabric and the second fabric, further simplifying the operation of the frame structure.

[0051] In some embodiments, the first fabric extends in the up and down direction and its lower end is connected to the bottom frame group 30. One end of the second fabric is connected to the bottom frame group 30, and the other end is connected to the first side surround group 40 and moves up and down with the first side surround group 40. Coupling members are provided on both the front and rear sides of the second fabric. This can facilitate the connection and separation of the first fabric and the second fabric, and facilitate the smooth up and down movement of the first side surround group 40, making it convenient to operate and use the frame structure and improving the service life of the frame structure.

[0052] Optionally, the first fabric may include a first part, a second part, a third part, and a fourth part. The first part is connected to the front frame group 10, the second part is connected to the rear frame group 20, the third part is connected to the second side surround group 60, and the fourth part may be provided on the bottom frame group 30. The lower edges of the first part, the second part, and the third part are connected to the edge of the fourth part. The second fabric is connected to the lower edge of the fourth part. When the second fabric is combined with the first fabric, the first fabric and the second fabric enclose an upper-open accommodation space.

[0053] As Figures 1 to 4, in some embodiments, the frame structure further includes: a second side surround group 60, the second side surround group 60 connects the front frame group 10 and the rear frame group 20, and the second side surround group 60 and the first side surround group 40 are distributed left and right. In addition, both ends of the first side surround group 40 are respectively connected to the front frame group 10 and the rear frame group 20, and both ends of the second side surround group 60 are respectively connected to the front frame group 10 and the rear frame group 20, thereby constructing a storage space between the first side surround group 40 and the second side surround group 60. The first side surround group 40 and the second side surround group 60 can be set to both include a first rod portion 41, a second rod portion 42, and a first connecting portion 43. Of course, the side surround group can also only include the first side surround group 40, so that the left or right side of the frame structure can be opened, so as to sit on the bottom frame group 30 from the opened left or right side of the frame structure when resting.

[0054] In some embodiments, the ends of the second side surround group 60 are relatively fixed to the front frame group 10 and the rear frame group 20. In addition, the ends of the second side surround group 60 can also be movable up and down relative to the front frame group 10 and the rear frame group 20.

[0055] In addition, the frame structure in the present application can be set to a foldable structure.

[0056] Combined with Figures 1 to 4 , in some embodiments, the bottom frame group 30 can drive the front frame group 10 and the rear frame group 20 to move towards each other, and the bottom frame group 30 can also drive them to move away from each other. When the front frame group 10 and the rear frame group 20 move towards each other, the front frame group 10 moves towards the rear frame group 20, and the rear frame group 20 moves towards the front frame group 10, thereby reducing the size of the frame structure in the front-rear direction and folding the frame structure for easy storage; when the front frame group 10 and the rear frame group 20 move away from each other, the front frame group 10 moves away from the rear frame group 20, and the rear frame group 20 moves away from the front frame group 10, thereby increasing the size of the frame structure in the front-rear direction and unfolding the frame structure for easy use. In addition, when the frame structure is in the unfolded state, the first side surround group 40 supports the front frame group 10 and the rear frame group 20, and when in the folded state, the first side surround group 40 folds. Optionally, when in the folded state, the first side surround group 40 folds between the front frame group 10 and the rear frame group 20. In addition, when the frame structure is in the unfolded state, the second side surround group 60 supports the front frame group 10 and the rear frame group 20, and when in the folded state, the second side surround group 60 folds. Optionally, when in the folded state, the second side surround group 60 folds between the front frame group 10 and the rear frame group 20.

[0057] In addition, the chassis group 30 can be connected to the lower ends of the front frame group 10 and the rear frame group 20. When the frame structure is folded, the chassis group 30 folds upward between the front frame group 10 and the rear frame group 20; when the frame structure is unfolded, the chassis group 30 is disposed at the bottom of the frame structure to provide support for the items within the frame structure. The first side enclosure group 40 and the second side enclosure group 60 can be connected to the upper ends of the front frame group 10 and the rear frame group 20. When the frame structure is folded, the chassis group 30 folds downward between the front frame group 10 and the rear frame group 20; when the frame structure is unfolded, the chassis group 30 is disposed at the upper part of the frame structure to provide lateral protection for the items within the frame structure.

[0058] As Figure 8 and Figure 9 , in some embodiments of the present application, the first side enclosure group 40 and the second side enclosure group 60 may include a first rod portion 41, a second rod portion 42, and a first connecting portion 43. The first end of the first rod portion 41 is rotatably connected to the front frame group 10, the first end of the second rod portion 42 is rotatably connected to the rear frame group 20, the second end of the first rod portion 41 and the second end of the second rod portion 42 are connected to the first connecting portion 43. The first side enclosure group 40 and the second side enclosure group 60 have a locked state and an unlocked state. In the locked state, the relative rotation of the first rod portion 41 and the second rod portion 42 is restricted, and in the unlocked state, the relative rotation of the first rod portion 41 and the second rod portion 42 is allowed.

[0059] Optionally, when the frame structure is in the unfolded state, the first side enclosure group 40 and the second side enclosure group 60 are in the locked state, and the relative movement of the front frame group 10 and the rear frame group 20 can drive the first side enclosure group 40 and the second side enclosure group 60 to be converted into the unlocked state. That is to say, when the frame structure is unfolded, the first side enclosure group 40 and the second side enclosure group 60 can be used to support functional accessories; when the frame structure is unfolded, the relative movement of the front frame group 10 and the rear frame group 20 can unlock the first side enclosure group 40 and the second side enclosure group 60, thereby facilitating the folding of the first side enclosure group 40 and the second side enclosure group 60 and optimizing the folding and unfolding efficiency of the frame structure. During the folding process, the chassis group 30 can be used to drive the front frame group 10 and the rear frame group 20 to move towards each other, and the first side enclosure group 40 and the second side enclosure group 60 are converted into the unlocked state, thereby folding the first rod portion 41 and the second rod portion 42 to achieve the folding of the frame structure. In addition, the unfolding process is the reverse of the above process. Optionally, the first connecting portion 43 restricts the relative rotation of the first rod portion 41 and the second rod portion 42 in the locked state and allows the relative rotation of the first rod portion 41 and the second rod portion 42 in the unlocked state.

[0060] As Figure 9, the first connecting portion 43 may include: a mounting base 431 provided with a first groove portion 4301 which includes a first sliding groove 4302 and a first locking groove 4303 that communicate with each other; a first slider 432 rotatably connected to the mounting base 431, the second end of the first rod portion 41 being slidably connected to the first slider 432 and provided with a first sliding portion 401 slidably disposed in the first groove portion 4301. In the locked state, the first sliding portion 401 is disposed in the first locking groove 4303, and in the unlocked state, the first sliding portion 401 is disposed in the first sliding groove 4302. Among them, the first sliding groove 4302 extends around the rotation axis of the first slider 432, the first locking groove 4303 is connected to the first sliding groove 4302 and extends toward the rotation axis of the first slider 432, and in the deployed state, the first locking groove 4303 extends in the front-rear direction.

[0061] As Figure 9 , the mounting base 431 is further provided with a second groove portion 4304 which includes a second sliding groove 4305 and a second locking groove 4306 that communicate with each other. The first connecting portion 43 further includes: a second slider 433 rotatably connected to the mounting base 431, the second end of the second rod portion 42 being slidably connected to the second slider 433 and provided with a second sliding portion 402 slidably disposed in the second groove portion 4304. In the locked state, the second sliding portion 402 is disposed in the second locking groove 4306, and in the unlocked state, the second sliding portion 402 is disposed in the second sliding groove 4305. Among them, the second sliding groove 4305 extends around the rotation axis of the second slider 433, the second locking groove 4306 is connected to the second sliding groove 4305 and extends toward the rotation axis of the second slider 433, and in the deployed state, the second locking groove 4306 extends in the front-rear direction.

[0062] Specifically, the unfolding process of the frame structure includes: when the frame structure is in the folded state, the first sliding portion 401 is located in the first sliding groove 4302 and the second sliding portion 402 is located in the second sliding groove 4305; the front frame group 10 and the rear frame group 20 move away from each other, the first rod portion 41 and the second rod portion 42 rotate upward, the first sliding portion 401 slides along the first sliding groove 4302, and the second sliding portion 402 slides along the second sliding groove 4305; after the first sliding portion 401 slides to the connection portion of the first sliding groove 4302 and the first locking groove 4303, and the second sliding portion 402 slides to the connection portion of the second sliding groove 4305 and the second locking groove 4306, the front frame group 10 and the rear frame group 20 continue to move away from each other, the first sliding portion 401 enters into the first locking groove 4303, and the second sliding portion 402 enters into the second locking groove 4306, thereby locking the first rod portion 41 and the second rod portion 42.

[0063] The folding process of the frame structure includes: The frame structure is in the unfolded state. The first sliding part 401 is located in the first locking groove 4303, and the first sliding part 401 cannot move in the direction of the axis of the first slider 432, so the first rod part 41 is locked and cannot rotate. The second sliding part 402 is located in the second locking groove 4306, and the second sliding part 402 cannot move in the direction of the axis of the second slider 433, so the second rod part 42 is locked and cannot rotate. The front frame group 10 and the rear frame group 20 move towards each other. The first sliding part 401 slides out of the first locking groove 4303 and enters the first sliding groove 4302. The second sliding part 402 slides out of the second locking groove 4306 and enters the second sliding groove 4305. The first sliding part 401 slides along the first sliding groove 4302, and the second sliding part 402 slides along the second sliding groove 4305. The first rod part 41 and the second rod part 42 rotate downward, and the first side enclosure group 40 and the second side enclosure group 60 are folded between the front frame group 10 and the rear frame group 20.

[0064] As Figure 10 , in some embodiments of the present application, the underframe group 30 includes a first underframe 31, a second underframe 32, and a second connecting part 33. The first underframe 31 is rotatably connected to the front frame group 10 and the second connecting part 33. The second underframe 32 is rotatably connected to the rear frame group 20 and the second connecting part 33. The first underframe 31 and the second underframe 32 can rotate towards each other around the second connecting part 33 and drive the front frame group 10 and the rear frame group 20 to move towards each other. Specifically, referring to Figure 4 and Figure 10 , during the folding process of the foldable frame, the second connecting part 33 moves upward. The first underframe 31 rotates downward and backward around the second connecting part 33, and the second underframe 32 rotates downward and forward around the second connecting part 33. At the same time, as Figure 1 , the first underframe 31 will drive the front frame group 10 to move backward, and the second underframe 32 will drive the rear frame group 20 to move forward, thus realizing the folding of the foldable frame.

[0065] The second connecting part 33 may include a support 331 extending in the up and down direction. The first underframe 31 includes a first upper underframe 311 and a first lower underframe 312. The two ends of the first upper underframe 311 are respectively rotatably connected to the front frame group 10 and the upper part of the support 331. The two ends of the first lower underframe 312 are respectively rotatably connected to the front frame group 10 and the lower part of the support 331. The second underframe 32 includes a second upper underframe 321 and a second lower underframe 322. The two ends of the second upper underframe 321 are respectively rotatably connected to the rear frame group 20 and the upper part of the support 331. The two ends of the first lower underframe 312 are respectively rotatably connected to the rear frame group 20 and the lower part of the support 331.

[0066] During the process from the unfolded state to the folded state: In the unfolded state, the first upper chassis 311 can extend in the front-back direction, the first lower chassis 312 can extend in the front-back direction, the first upper chassis 311 is disposed above the first lower chassis 312, the front frame group 10 and the support 331 are distributed in the front-back direction, the first upper chassis 311 and the first lower chassis 312 are distributed in the up-down direction, and the front frame group 10, the support 331, the first upper chassis 311 and the first lower chassis 312 form a parallelogram structure; the second upper chassis 321 can extend in the front-back direction, the second lower chassis 322 can extend in the front-back direction, the second upper chassis 321 is disposed above the second lower chassis 322, the rear frame group 20 and the support 331 are distributed in the front-back direction, the second upper chassis 321 and the second lower chassis 322 are distributed in the up-down direction, and the rear frame group 20, the support 331, the second upper chassis 321 and the second lower chassis 322 form a parallelogram structure. When folding, the support 331 moves upward, driving the first upper chassis 311 and the first lower chassis 312 to rotate upward, driving the second upper chassis 321 and the second lower chassis 322 to rotate upward, and simultaneously driving the front frame group 10 and the rear frame group 20 to move toward each other, realizing the folding of the frame structure.

[0067] During the process from the folded state to the unfolded state: In the folded state, the front frame group 10, the support 331, the first upper chassis 311 and the first lower chassis 312 form a parallelogram structure, the first upper chassis 311 and the first lower chassis 312 extend in the up-down direction, and the upper end is connected to the support 331 and the lower end is connected to the front frame group 10; the rear frame group 20, the support 331, the second upper chassis 321 and the second lower chassis 322 form a parallelogram structure, the second upper chassis 321 and the second lower chassis 322 extend in the up-down direction, and the upper end is connected to the support 331 and the lower end is connected to the front frame group 10. When unfolding, the support 331 moves downward, driving the first upper chassis 311 and the first lower chassis 312 to rotate downward, driving the second upper chassis 321 and the second lower chassis 322 to rotate downward, and simultaneously driving the front frame group 10 and the rear frame group 20 to move away from each other, thereby realizing the unfolding of the frame structure.

[0068] Optionally, the second connecting portion 33 further includes a third slider 332, a third rod portion 333, and a fourth rod portion 334. The third slider 332 is slidably disposed on the support 331 in the up and down direction. The third rod portion 333 is rotatably connected to the third slider 332 and the first lower chassis 312, and the fourth rod portion 334 is rotatably connected to the third slider 332 and the second lower chassis 322. The third slider 332 can be used to guide the folding and unfolding of the first chassis 31 and the second chassis 32, improving the stability and convenience of the frame structure during the folding and unfolding processes and facilitating the use of the frame structure. Among them, the third rod portion 333, the third slider 332, and the first lower chassis 312 construct a triangular stable structure, and the fourth rod portion 334, the third slider 332, and the second lower chassis 322 construct a triangular stable structure. In the unfolded state, the third slider 332 is disposed at the upper end of the support 331; in the folded state, the third slider 332 is disposed at the lower end of the support 331.

[0069] Optionally, the second connecting portion 33 further includes a locking portion 335 for locking and unlocking the relative movement of the third slider 332 and the support 331. Further, the locking portion 335 is rotatably connected to the support 331, and when the third slider 332 slides to the upper part of the support 331, the locking portion 335 hooks the third slider 332.

[0070] Such as Figure 11 , in some embodiments, the frame structure further includes a handle group 51 connected to the upper end of the front frame group 10. Among them, the handle group 51 can be set to extend in the front and back directions, or the handle group 51 can be set to be rotatably connected to the front frame group 10. In addition, both the front frame group 10 and the rear frame group 20 of the frame structure can be connected with a handle group 51.

[0071] Optionally, the frame structure can further include a vegetable basket group 52 connected to the upper end of the rear frame group 20. The vegetable basket group 52 can be used to support objects, thereby increasing the storage space of the frame structure and improving the space utilization rate of the frame structure.

[0072] Optionally, the frame structure further includes a front wheel group 53 connected to the lower end of the front frame group 10; and / or, the frame structure further includes a rear wheel group 54 connected to the upper end of the rear frame group 20. This can facilitate the movement of the frame structure. Among them, the front wheel group 53 and the rear wheel group 54 can be set as rollers of the same size or rollers of different sizes. Further, the front wheel group 53 can include two distributed left and right. When the frame structure is in the folded state, a part of the rear wheel group 54 is disposed between the two front wheel groups 53, and the rear wheel group 54 can also include two distributed left and right; or, the rear wheel group 54 can include two distributed left and right. When the frame structure is in the folded state, a part of the front wheel group 53 is disposed between the two front wheel groups 53, and the front wheel group 53 can also include two distributed left and right.

[0073] Optionally, the frame structure further includes a seat 55 which, in the deployed state, is detachably supported on the first side surround group 40 and the second side surround group 60. Wherein, positioning structures can be provided at the left and right ends of the seat 55 to be respectively positioned on the first side surround group 40 and the second side surround group 60; seats 55 can be respectively provided at the front and rear parts of the frame structure, and the two seats 55 are arranged oppositely; or a plurality of seats 55 can be arranged along the front and rear on the frame structure.

[0074] Optionally, the frame structure can further include a dining plate 56 which, in the deployed state, is detachably supported on the first side surround group 40 and the second side surround group 60. Further, the aforementioned seat 55 and the dining plate 56 can be arranged oppositely, so that the seat 55 and the dining plate 56 can be matched to expand the functions of the frame structure. Wherein, in the aforementioned embodiment, the seat 55 can include two oppositely arranged seats, and the dining plate 56 can be arranged between the two seats 55.

[0075] Optionally, the frame structure further includes an umbrella cover group 57 which is detachably connected to the front frame group 10 and the rear frame group 20. The umbrella cover group 57 can be used for sunshading to optimize the usage environment of the frame structure. Wherein, the umbrella cover group 57 can be set to be integrally foldable and deployable with the front frame group 10 and the rear frame group 20. Or, the umbrella cover group 57 can also be set in a detachable form.

[0076] In addition, the first upper chassis 311 and the second upper chassis 321 of the present application can include transverse support rods and longitudinal support rods, and the transverse support rods and the longitudinal support rods are cross-connected to construct a chassis structure located at the bottom of the frame structure, so as to facilitate storing items and improve the structural strength and stability of the frame structure. Wherein, the aforementioned second connection parts 33 are respectively provided on the left and right sides of the chassis group 30 for the stable folding and deployment of the first chassis 31 and the second chassis 32.

[0077] The present application also provides a trolley which can include the frame structure of the aforementioned embodiment.

[0078] The present application also provides a baby crib which can include the frame structure of the aforementioned embodiment.

[0079] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0080] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0081] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0082] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0083] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0084] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A frame structure, characterized in that, Comprising: A front frame group (10) and a rear frame group (20), the front frame group (10) and the rear frame group (20) are distributed in the front-rear direction, and an accommodation space is provided between the front frame group (10) and the rear frame group (20); A bottom frame group (30), the bottom frame group (30) connects the front frame group (10) and the rear frame group (20), and the bottom frame group (30) is arranged below the accommodation space; A first side enclosure group (40), the first side enclosure group (40) is arranged on one side of the accommodation space in the left-right direction, and the first side enclosure group (40) is movably connected to the front frame group (10) and the rear frame group (20) in the up-down direction.

2. The frame structure according to claim 1, characterized in that The first side enclosure group (40) has an upper stop position and a lower stop position, the first side enclosure group (40) can move in the up-down direction between the upper stop position and the lower stop position, and the upper stop position is higher than the lower stop position and the bottom frame group (30).

3. The frame structure according to claim 2, characterized in that, The first side enclosure group (40) connects the upper end of the front frame group (10) and the upper end of the rear frame group (20) at the upper stop position.

4. The frame structure according to claim 2, characterized in that The height h1 of the lower stop position and the top surface height h2 of the bottom frame group (30) satisfy: h1 ≤ h2; or, h2 ≤ a * h2, where a ≤ 2.

5. The frame structure according to claim 2, wherein The frame structure includes a first locking member (4012), the first locking member (4012) is arranged on one of the front frame group (10) and the first side enclosure group (40), and when the first side enclosure group (40) is at the upper stop position, the first locking member (4012) locks to the other of the front frame group (10) and the first side enclosure group (40) to limit the first side enclosure group (40) from moving in the up-down direction; And / or, the frame structure includes a second locking member (4022), the second locking member (4022) is arranged on one of the rear frame group (20) and the first side enclosure group (40), and when the first side enclosure group (40) is at the upper stop position, the second locking member (4022) locks to the other of the rear frame group (20) and the first side enclosure group (40) to limit the first side enclosure group (40) from moving in the up-down direction.

6. The frame structure according to claim 1, wherein The frame structure further includes a first fabric, a second fabric and a coupling member, the first fabric connects the front frame group (10) and / or the rear frame group (20), the second fabric connects the first side enclosure group (40), and the coupling member is used for the combination and separation of the first fabric and the second fabric, and the coupling member is connected to the first side enclosure group (40).

7. The frame structure according to claim 6, wherein The coupling member includes a first rack, a second rack and a coupling part, the first rack connects the first fabric, the second rack connects the second fabric, the coupling part connects the first rack and the second rack and is movable in the up-down direction to combine and separate the first rack and the second rack, and the coupling part is connected to the first side enclosure group (40).

8. The frame structure according to claim 6, wherein The first fabric extends in the vertical direction and its lower end is connected to the chassis group (30). One end of the second fabric is connected to the chassis group (30), and the other end is connected to the first side enclosure group (40) and moves up and down following the first side enclosure group (40).

9. The frame structure according to claim 1, wherein The frame structure further includes: A second side enclosure group (60), the second side enclosure group (60) is connected to the front frame group (10) and the rear frame group (20), and the second side enclosure group (60) and the first side enclosure group (40) are distributed left and right.

10. The frame structure according to claim 9, characterized in that, The end of the second side enclosure group (60) is relatively fixed to the front frame group (10) and the rear frame group (20) or is movable in the vertical direction.

11. A trolley, characterized in that, Comprising the frame structure according to any one of claims 1-10.

12. A cot, characterized in that, Comprising the frame structure according to any one of claims 1-10.

Images