Bearing device

Abstract

The bearing device comprises a first supporting frame, a second supporting frame and a surrounding frame, the surrounding frame is arranged between the first supporting frame and the second supporting frame, the surrounding frame comprises a connecting base, a first surrounding frame assembly and a second surrounding frame assembly, the first surrounding frame assembly and the second surrounding frame assembly are arranged on the two sides of the connecting base respectively, and the first surrounding frame assembly comprises two sets of first surrounding frames. Each group of first enclosure frame is rotationally connected between the connecting seat and the first support frame; the second enclosure frame assembly comprises two sets of second enclosure frames, each set of second enclosure frame is rotationally connected between the connecting base and the second supporting frame, and when the bearing device is folded, the first supporting frame and the second supporting frame get close to each other; the first enclosure frame assembly and the second enclosure frame assembly are folded and located between the first supporting frame and the second supporting frame. The bearing device in the folded state is flat in overall structure and small in thickness, and convenience is brought to daily storage, carrying and the like of a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bearing device. BACKGROUND

[0002] In the prior art, a bearing device such as a child bed, a child fence and a trailer, usually forms a frame-shaped containing space for carrying articles or human bodies. These bearing devices are usually configured to be foldable to reduce the volume for easy daily storage and carrying. At present, the structures of these bearing devices are various, but most of them have problems such as complex structure, complex folding principle, inconvenient operation, uneven structure after folding or large volume, etc., which affect the user experience. SUMMARY

[0003] The utility model aims at providing a bearing device to solve one or more problems in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0005] A bearing device has an unfolded state and a folded state. The bearing device comprises a first support frame, a second support frame and a surrounding frame. The first support frame and the second support frame extend vertically. The surrounding frame is arranged between the first support frame and the second support frame. The surrounding frame comprises a connecting seat, a first surrounding frame assembly and a second surrounding frame assembly arranged on both sides of the connecting seat. The first surrounding frame assembly comprises two groups of first surrounding frames. One end of each group of first surrounding frames is rotatably connected to the connecting seat. The other end of each group of first surrounding frames is rotatably connected to the first support frame. The second surrounding frame assembly comprises two groups of second surrounding frames. One end of each group of second surrounding frames is rotatably connected to the connecting seat. The other end of each group of second surrounding frames is rotatably connected to the second support frame. When the bearing device is in the folded state, the first support frame and the second support frame are close to each other. The first surrounding frame assembly and the second surrounding frame assembly are close to each other and located between the first support frame and the second support frame.

[0006] Preferably, the surrounding frame further comprises a linkage assembly arranged between the connecting seat and one group of first surrounding frames and one group of second surrounding frames. When the first surrounding frame assembly rotates relative to the connecting seat, the linkage assembly links the second surrounding frame assembly to rotate relative to the connecting seat.

[0007] Further, the linkage assembly comprises a first linkage rod and a second linkage rod, the first linkage rod has a first end and a second end arranged at two different ends of the first linkage rod, the second linkage rod has a third end and a fourth end arranged at two different ends of the second linkage rod, wherein the first end is rotatably connected to one of the first frames, the second end is rotatably and slidably connected to the connecting seat, the third end is rotatably connected to one of the second frames, and the fourth end is rotatably and slidably connected to the connecting seat.

[0008] In some embodiments, a sliding member is arranged on the connecting seat and slidably connected to the connecting seat, the second end and the fourth end are respectively connected to the sliding member, and the sliding member is slidably connected to the connecting seat.

[0009] In some embodiments, a sliding groove is arranged on the connecting seat and extends in the up-down direction, the sliding member is slidably arranged in the sliding groove, and the second end and the fourth end are respectively rotatably connected to the axis of the rotating shaft.

[0010] In some embodiments, the second end and the fourth end are respectively slidably connected to the connecting seat, and the second end and the fourth end are configured to be synchronously slid relative to the connecting seat.

[0011] In some embodiments, in the unfolded state, the two groups of first frames are arranged one above the other, the two groups of second frames are arranged one above the other, the linkage assembly is arranged between the first frames and the second frames on the upper side and the connecting seat, or the linkage assembly is arranged between the first frames and the second frames on the lower side and the connecting seat.

[0012] In some embodiments, in the first frame assembly, each of the two groups of first frames comprises two first frame rods, the two first frame rods are arranged at two different ends of the first frame rods, and at least one of the two groups of first frames further comprises a first cross rod arranged between the two first frame rods; in the second frame assembly, each of the two groups of second frames comprises two second frame rods, the two second frame rods are arranged at two different ends of the second frame rods, and at least one of the two groups of second frames further comprises a second cross rod arranged between the two second frame rods; on each side of the width direction of the bearing device, the first frame rod and the second frame rod are respectively connected to the connecting seat, and one of the linkage assemblies is arranged on each side.

[0013] In some embodiments, the surrounding frame is arranged between the upper portion of the first support frame and the upper portion of the second support frame, the carrier device is in the folded state, and the connecting seat is close to the lower portion of the first support frame and the lower portion of the second support frame.

[0014] In some embodiments, the surrounding frame is arranged between the upper portion of the first support frame and the upper portion of the second support frame, the carrier device further comprises a carrier assembly arranged between the first support frame and the second support frame, the carrier device is in the unfolded state, and the carrier assembly is located below the surrounding frame and forms a carrier space with the surrounding frame.

[0015] In some embodiments, the carrier assembly at least comprises a first carrier and a second carrier, one end of the first carrier is movably connected to the first support frame, one end of the second carrier is movably connected to the second support frame, the carrier device is in the folded state, the first carrier and the second carrier are close to each other and are folded between the first support frame and the second support frame, and the connected ends of the first carrier and the second carrier are located above the connecting seat.

[0016] And / or, the carrier device is in the unfolded state, the first spacing between the two groups of the first surrounding frames and / or the second spacing between the two groups of the second surrounding frames, and the second spacing between the carrier assembly and the lowermost portion of the surrounding frame is more than twice the first spacing.

[0017] In some embodiments, the first support frame comprises a first upper support and a first lower support, the first upper support and the first lower support are arranged to be foldable in the length direction; the second support frame comprises a second upper support and a second lower support, the second upper support and the second lower support are arranged to be foldable in the length direction; and the surrounding frame is arranged between the first upper support and the second upper support.

[0018] Due to the use of the above technical solutions, the carrier device provided by the utility model has the following advantages: the surrounding frame is connected between the first support frame and the second support frame, two groups of the first surrounding frames are connected to the first support frame and the connecting seat respectively, two groups of the second surrounding frames are connected to the second support frame and the connecting seat respectively, when the carrier device is folded, two groups of the first surrounding frames and the second surrounding frames are folded by rotating relative to the connecting seat, the first support frame and the second support frame are close to each other, the overall structure of the carrier device in the folded state is flat, and the thickness is relatively thin, which brings convenience for the daily storage and carrying of users. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the present application, the drawings required in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0020] Figure 1 The figure is a perspective structure schematic diagram of the bearing device of the present application embodiment 1 in the unfolded state.

[0021] Figure 2 The figure is a side view structure schematic diagram of the bearing device. Figure 1

[0022] Figure 3 The figure is a structure exploded schematic diagram of the bearing device. Figure 1

[0023] Figure 4 The figure is a perspective structure schematic diagram of the bearing device of the present application embodiment 1 in the folding process.

[0024] Figure 5 The figure is a side view structure schematic diagram of the bearing device. Figure 4

[0025] Figure 6 The figure is a perspective structure schematic diagram of the bearing device of the present application embodiment 1 in the folding process on the basis of the present application embodiment 1. Figure 5

[0026] The figure is a side view structure schematic diagram of the bearing device. Figure 7 Figure 6 The figure is a perspective structure schematic diagram of the bearing device of the present application embodiment 1 in the folded state.

[0027] Figure 8 The figure is a side view structure schematic diagram of the bearing device.

[0028] Figure 9 Figure 8 The figure is a side view structure schematic diagram of the bearing device.

[0029] Figure 10 The figure is a perspective structure schematic diagram of the bearing device of the present application embodiment 2 in the unfolded state.

[0030] Figure 11 The figure is a side view structure schematic diagram of the bearing device. Figure 10

[0031] The figure is a perspective structure schematic diagram of the bearing device of the present application embodiment 2 in the folding process on the basis of the present application embodiment 2. Figure 12 Figure 10 The figure is a perspective structure schematic diagram of the bearing device of the present application embodiment 2 in the folding process on the basis of the present application embodiment 2.​​​​​​

[0032] Figure 13 Figure 1 is a perspective view of a bearing device according to an embodiment of the present application; Figure 12 Figure 2 is a side view of the bearing device of Figure 1;

[0033] Figure 14 Figure 3 is a perspective view of the bearing device of Figure 1 after the first support frame and the second support frame are further shortened; Figure 12 Figure 4 is a side view of the bearing device of Figure 3;

[0034] Figure 15 Figure 5 is a perspective view of a bearing device according to another embodiment of the present application; Figure 14 Figure 6 is a side view of the bearing device of Figure 5;

[0035] In the above figures:

[0036] 1. first support frame; 1a, first vertical rod; 1b, first connecting rod; 11, first upper support frame; 11a, first upper support rod; 11b, first upper connecting rod; 12, first lower support frame; 12a, first lower support rod; 13, first locking member;

[0037] 2. second support frame; 2a, second vertical rod; 2b, second connecting rod; 21, second upper support frame; 21a, second upper support rod; 21b, second upper connecting rod; 22, second lower support frame; 22a, second lower support rod; 23, second locking member;

[0038] 3. first enclosing frame; 31, first enclosing rod; 32, first horizontal rod;

[0039] 4. second enclosing frame; 41, second enclosing rod; 42, second horizontal rod;

[0040] 5. connecting seat; 51, sliding groove;

[0041] 6. linkage assembly; 61, first linkage rod; 61a, first end; 61b, second end; 62, second linkage rod; 62a, third end; 62b, fourth end; 63, sliding member;

[0042] 7. bearing assembly; 71, first bearing member; 72, second bearing member. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present application will be described in detail with reference to the drawings. It should be noted that the description of the embodiments is for the purpose of understanding the present application and does not constitute a limitation of the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0044] In this document, the terms "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings of the bearing device in the unfolded state, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0045] Figures 1 to 15 The drawings are drawn to scale, and in order to maintain the brevity of the specification, the proportions of the elements are not listed one by one, but the proportions and positions of the elements should be considered as part of the content of the specification.

[0046] Embodiment 1

[0047] Referring to Figures 1 to 9 A bearing device shown in the figure has an unfolded state and a folded state, the bearing device comprises a first support frame 1, a second support frame 2, and a surrounding frame, the first support frame 1 and the second support frame 2 both extend vertically, and the surrounding frame is arranged between the first support frame 1 and the second support frame 2; the surrounding frame comprises a connecting seat 5, and a first surrounding frame assembly and a second surrounding frame assembly which are respectively arranged on both sides of the connecting seat 5, the first surrounding frame assembly comprises two groups of first surrounding frames 3, one end of each group of first surrounding frames 3 is rotatably connected to the connecting seat 5, and the other end of each group of first surrounding frames 3 is rotatably connected to the first support frame 1; the second surrounding frame assembly comprises two groups of second surrounding frames 4, one end of each group of second surrounding frames 4 is rotatably connected to the connecting seat 5, and the other end of each group of second surrounding frames 4 is rotatably connected to the second support frame 2.

[0048] When the bearing device is in the unfolded state, the two groups of first surrounding frames 3 and the two groups of second surrounding frames 4 are unfolded relative to the connecting seat 5, the first surrounding frames 3 and the second surrounding frames 4 respectively extend in the horizontal direction, so that a frame-shaped space is formed between the first surrounding frame assembly, the second surrounding frame assembly and the connecting seat 5; when the bearing device is in the folded state, the first support frame 1 and the second support frame 2 are close to each other, the first surrounding frame assembly and the second surrounding frame assembly are folded to each other and located between the first support frame 1 and the second support frame 2, greatly reducing the volume of the bearing device.

[0049] In the bearing device, the surrounding frame further comprises a linkage assembly 6, which is arranged between the connecting seat 5 and one group of first surrounding frames 3 and one group of second surrounding frames 4, so as to link and rotate the second surrounding frame assembly relative to the connecting seat 5 when the first surrounding frame assembly rotates relative to the connecting seat 5, so that the first surrounding frame assembly and the second surrounding frame assembly can be rotated relative to the connecting seat 5 synchronously during the folding process, making the folding process more smooth and the operation more simple.

[0050] Referring to the drawings, in particular, the linkage assembly 6 comprises a first linkage rod 61 and a second linkage rod 62, the first linkage rod 61 has a first end 61a and a second end 61b arranged at two different ends along the length direction of the first linkage rod 61, the second linkage rod 62 has a third end 62a and a fourth end 62b arranged at two different ends along the length direction of the second linkage rod 62, the first end 61a is rotatably connected to one of the first surrounding frames 3, the second end 61b is arranged on the connecting seat 5 and can rotate and slide up and down relative to the connecting seat 5; the third end 62a is rotatably connected to one of the second surrounding frames 4, and the fourth end 62b is arranged on the connecting seat 5 and can rotate and slide up and down relative to the connecting seat 5; the second end 61b and the fourth end 62b are configured to slide relative to the connecting seat 5 at the same time, so that the first linkage rod 61 and the second linkage rod 62 rotate at the same time, thereby causing the first surrounding frame assembly and the second surrounding frame assembly to rotate relative to the connecting seat 5 at the same time.

[0051] In this embodiment, the linkage assembly 6 further comprises a sliding member 63, which is arranged on the connecting seat 5 and slides up and down relative to the connecting seat 5, the second end 61b and the fourth end 62b are connected to the sliding member 63, respectively, and the two can be rotatably connected to the sliding member 63 through a rotating shaft, respectively, or can be rotatably connected to the sliding member 63 around the same rotating center line, and the sliding of the sliding member 63 relative to the connecting seat 5 will cause the first surrounding frame 3 and the second surrounding frame 4 to rotate relative to the connecting seat 5. In this embodiment, a sliding groove 51 extending in the up-down direction is formed on the connecting seat 5, and the sliding member 63 is slidingly fitted in the sliding groove 51. Here, the sliding member 63 is a rotating shaft, and the second end 61b and the fourth end 62b are rotatably connected around the axis of the rotating shaft, respectively. In particular, the second end 61b and the fourth end 62b can be rotatably connected to the rotating shaft, respectively, or the rotating shaft can be fixed to the second end 61b, and the fourth end 62b can be rotatably sleeved on the rotating shaft around the axis of the rotating shaft, and the rotating shaft can be rotatably inserted into the sliding groove 51.

[0052] In other embodiments, the second end 61b and the fourth end 62b can be slidingly connected to the connecting seat 5, respectively, and can slide relative to the connecting seat 5 at the same time. For example, a sliding member is arranged on the second end 61b and the fourth end 62b, respectively, and the two sliding members are connected through a connecting structure, so that they slide up and down relative to the connecting seat 5 at the same time.

[0053] In the embodiment, the bearing device is in the unfolded state, the two groups of first enclosing frames 3 are arranged one above the other, the two groups of second enclosing frames 4 are arranged one above the other, and the linkage assembly 6 is arranged between the first enclosing frame 3 on the upper side and the second enclosing frame 4 on the upper side and the connecting seat 5. In other embodiments, the linkage assembly 6 can also be arranged between the first enclosing frame 3 on the lower side and the second enclosing frame 4 on the lower side and the connecting seat 5, or between the first enclosing frame 3 on the upper side and the second enclosing frame 4 on the lower side and the connecting seat 5, or between the first enclosing frame 3 on the lower side and the second enclosing frame 4 on the upper side and the connecting seat 5.

[0054] In the embodiment, the first support frame 1 and the second support frame 2 are both U-shaped frames with openings facing upwards, the first support frame 1 includes two first vertical rods 1a that extend vertically and are spaced apart along the width direction of the bearing device, and a first connecting rod 1b arranged between the lower parts of the two first vertical rods 1a; the second support frame 2 includes two second vertical rods 2a that extend vertically and are spaced apart along the width direction of the bearing device, and a second connecting rod 2b arranged between the lower parts of the two second vertical rods 2a, and the enclosing frame is arranged between the first vertical rods 1a on both sides and the second vertical rods 2a on both sides. In the first enclosing frame assembly, the two groups of first enclosing frames 3 each include two first enclosing rods 31 that are spaced apart along the width direction of the bearing device; in the second enclosing frame assembly, the two groups of second enclosing frames 4 each include two second enclosing rods 41 that are spaced apart along the width direction of the bearing device, and on each side in the width direction of the bearing device, the two groups of first enclosing rods 31 and the two groups of second enclosing rods 41 are respectively rotatably connected to the connecting seat 5, the two groups of first enclosing rods 31 are respectively rotatably connected to the first vertical rods 1a, the two groups of second enclosing rods 41 are respectively rotatably connected to the second vertical rods 2a, and one group of linkage assemblies 6 is arranged on each side.

[0055] Specifically, referring to Figure 2As shown, in each side of the width direction of the bearing device, one end of the first surrounding rod 31 on the upper side is rotatably connected to the connecting seat 5 through a shaft a, and the other end is rotatably connected to the first vertical rod la through a shaft c; one end of the first surrounding rod 31 on the lower side is rotatably connected to the connecting seat 5 through a shaft b, and the other end is rotatably connected to the first vertical rod la through a shaft d; one end of the second surrounding rod 41 on the upper side is rotatably connected to the connecting seat 5 through a shaft e, and the other end is rotatably connected to the second vertical rod 2a through a shaft g; one end of the second surrounding rod 41 on the lower side is rotatably connected to the connecting seat 5 through a shaft f, and the other end is rotatably connected to the second vertical rod 2a through a shaft h. In the linkage assembly 6, the first end 61a of the first linkage rod 61 is rotatably connected to the first surrounding rod 31 on the upper side through a shaft i, and the third end 62a of the second linkage rod 62 is rotatably connected to the second surrounding rod 41 on the upper side through a shaft j. The shaft centers of the shafts a, b, c, d, e, f, g, h, i, and j are parallel to each other, and also parallel to the shaft center of the rotating shaft of the sliding member 63, which all extend along the width direction of the bearing device. In other embodiments, the shaft a and the shaft e can also extend in line, and the shaft b and the shaft f can also extend in line.

[0056] In this embodiment, the two first surrounding frames 3 in the first surrounding frame assembly are identical in structure, and each further has a first cross rod 32 arranged between the end portions of the two first surrounding rods 31, so that the first surrounding frame 3 is in the shape of a U-shaped frame with the opening facing the connecting seat 5; the two second surrounding frames 4 in the second surrounding frame assembly are also identical in structure, and each further has a second cross rod 42 arranged between the end portions of the two second surrounding rods 41, so that the second surrounding frame 4 is in the shape of a U-shaped frame with the opening facing the connecting seat 5.

[0057] In this embodiment, the surrounding frame is specifically arranged between the upper portion of the first support frame 1 and the upper portion of the second support frame 2. When the bearing device is folded, the connecting seat 5 moves downward, the first surrounding frame assembly and the second surrounding frame assembly are folded towards each other, and the first support frame 1 and the second support frame 2 are gradually moved towards each other to realize the folding of the bearing device. Figure 8 、 Figure 9 As shown, the connecting seat 5 and the lower portions of the first support frame 1 and the second support frame 2 are moved towards each other, so as to reduce the total height of the folded bearing device.

[0058] As shown in the drawings, the bearing device further comprises a bearing assembly 7 arranged between the first support frame 1 and the second support frame 2. When the bearing device is in the unfolded state, the bearing assembly 7 is located below the surrounding frame and forms a bearing space with the surrounding frame, which is used for placing objects or for the user to sit on.

[0059] Specifically, the bearing assembly 7 at least comprises a first bearing 71 and a second bearing 72, one end of the first bearing 71 is movably connected to the first support frame 1, one end of the second bearing 72 is movably connected to the second support frame 2, the other end of the first bearing 71 and the other end of the second bearing 72 are movably connected, so that the first bearing 71 and the second bearing 72 can be folded relative to each other. When arranged, the first bearing 71 and the second bearing 72 are movably connected by the cloth cover arranged thereon, and the connection between the first bearing 71 and the second bearing 72 and the first support frame 1 and the second support frame 2 is formed by the cloth cover. During folding of the bearing device, the connected ends of the first bearing 71 and the second bearing 72 go up, so that the first bearing 71 and the second bearing 72 are close to each other and are folded between the first support frame 1 and the second support frame 2, and the connected ends of the first bearing 71 and the second bearing 72 are above the connecting seat 5 when the bearing device is in the folded state.

[0060] Specifically arranged, the first distance is provided between the two groups of first surrounding frames 3 in the up-down direction, the first distance is also provided between the two groups of second surrounding frames 4 in the up-down direction, and the second distance is provided between the bearing assembly 7 and the lowermost part of the surrounding frame, the second distance is greater than the first distance, preferably more than twice, so that the surrounding frame forms a stable enclosure at the upper part of the bearing device.

[0061] The bearing device can be used alone or combined with other children's products by grafting.

[0062] Without illustration, the bearing device is also provided with a locking mechanism for locking it in the unfolded state, and the specific arrangement position and specific structure of the locking mechanism are not the focus of the present application, as long as the first surrounding frame assembly and / or the second surrounding frame assembly can be limited relative to the connecting seat 5. Specifically, the sliding member 63 and the connecting seat 5 can be locked by the locking mechanism to lock the entire bearing device in the unfolded state.

[0063] When folding the bearing device of the present embodiment, the user holds the first surrounding frame 3 and the second surrounding frame 4 with both hands, and drives them to move towards each other, under the action of the linkage assembly 6, the first surrounding frame 3 and the second surrounding frame 4 keep synchronous rotation relative to the connecting seat 5, so that the first surrounding frame 3 and the second surrounding frame 4 are gradually folded, and the first support frame 1 and the second support frame 2 are brought closer to each other, completing the folding of the bearing device. The structure of the folded bearing device is shown in Figure 8 、 Figure 9 As shown, it presents a very flat state, which brings convenience for users' daily carrying and storage, etc.

[0064] Embodiment 2

[0065] Referring to Figures 10 to 15The difference between the present embodiment and embodiment 1 is mainly shown in the following aspects:

[0066] In the present embodiment, the two groups of first enclosing frames 3 in the first enclosing frame assembly are different in structure, wherein the first enclosing frame 3 on the lower side has only the first enclosing rods 31 but no first cross rod; the two groups of second enclosing frames 4 in the second enclosing rod assembly are also different in structure, wherein the second enclosing frame 4 on the lower side has only the second enclosing rods 41 but no second cross rod.

[0067] In the present embodiment, the height of the first support frame 1 and the second support frame 2 can be adjusted, so that the height of the enclosing frame assembly can be adjusted, thereby making the carrying space have different use heights.

[0068] The first support frame 1 comprises a first upper support 11 and a first lower support 12, which can be folded along the length direction, specifically in the form of sliding telescopic adjustment; the second support frame 2 comprises a second upper support 21 and a second lower support 22, which can also be folded along the length direction, specifically in the form of sliding telescopic adjustment. The enclosing frame assembly is arranged between the upper parts of the first upper support 11 and the second upper support 21, and the carrying assembly 7 is arranged between the lower parts of the first upper support 11 and the second upper support 21.

[0069] More specifically, referring to Figure 10 As shown, the first upper support 11 comprises two vertically extending first upper support rods 11a and a first upper connecting rod 11b arranged between the lower parts of the two first upper support rods 11a; the first lower support 12 comprises two vertically extending first lower support rods 12a, the upper parts of which are slidingly and fittingly inserted into the rod cavities of the two first upper support rods 11a, and the lower part of each first upper support rod 11a is further provided with a first locking member 13 for locking the first upper support rod 11a and the first lower support rod 12a.

[0070] Similarly, the second upper support 21 comprises two vertically extending second upper support rods 21a and a second upper connecting rod 21b arranged between the lower parts of the two second upper support rods 21a; the second lower support 22 comprises two vertically extending second lower support rods 22a, the upper parts of which are slidingly and fittingly inserted into the rod cavities of the two second upper support rods 21a, and the lower part of each second upper support rod 21a is further provided with a second locking member 23 for locking the second upper support rod 21a and the second lower support rod 22a.

[0071] When the carrying device is in the unfolded state, it can be used by unfolding the first lower support 12 and the second lower support 22 relative to the first upper support 11 and the second upper support 21 respectively, such as Figure 10 , Figure 11As shown, this allows the supporting component 7 to have a relatively high height, such as for direct support on the ground; it can also be partially unfolded relative to the first upper support 11 and the second upper support 21, respectively, for use as shown. Figure 12 , Figure 13 As shown, this allows the supporting component 7 to have a relatively high height; the first lower bracket 12 and the second lower bracket 22 can also be completely retracted relative to the first upper bracket 11 and the second upper bracket 21, respectively, for use, as shown. Figure 14 , Figure 15 As shown, this allows the support component 7 to have a relatively low height, such as for direct placement on an adult bed.

[0072] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. In the event of any contradiction or inconsistency between the definitions used herein and those contained in other published documents, the definitions used herein shall prevail.

[0074] It should also be noted that "rotational connection" in the above embodiments refers to pivot connection, unless the context clearly indicates other rotational connection methods.

[0075] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0076] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0077] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0078] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A carrying device having an unfolded state and a folded state, characterized in that: The carrying device comprises a first support frame, a second support frame and a surrounding frame, the first support frame and the second support frame both extend vertically, the surrounding frame is arranged between the first support frame and the second support frame, the surrounding frame comprises a connecting seat, and a first surrounding frame assembly and a second surrounding frame assembly which are separately arranged on two sides of the connecting seat, the first surrounding frame assembly comprises two groups of first surrounding frames, one end of each group of the first surrounding frames is rotatably connected to the connecting seat, and the other end of the first surrounding frame is rotatably connected to the first support frame; the second surrounding frame assembly comprises two groups of second surrounding frames, one end of each group of the second surrounding frames is rotatably connected to the connecting seat, and the other end of the second surrounding frame is rotatably connected to the second support frame, the carrying device is in a folded state, the first support frame and the second support frame are close to each other, and the first surrounding frame assembly and the second surrounding frame assembly are close to each other and located between the first support frame and the second support frame.

2. The load bearing device of claim 1, wherein: The surrounding frame further comprises a linkage assembly, the linkage assembly is arranged between the connecting seat and one group of the first surrounding frames and one group of the second surrounding frames, so as to link the second surrounding frame assembly to rotate relative to the connecting seat when the first surrounding frame assembly rotates relative to the connecting seat.

3. The load bearing device of claim 2, wherein: The linkage assembly comprises a first linkage rod and a second linkage rod, the first linkage rod has a first end and a second end which are separately arranged at different ends in the length direction of the first linkage rod, the second linkage rod has a third end and a fourth end which are separately arranged at different ends in the length direction of the second linkage rod, wherein the first end is rotatably connected to one group of the first surrounding frames, and the second end is rotatably and slidably connected to the connecting seat; the third end is rotatably connected to one group of the second surrounding frames, and the fourth end is rotatably and slidably connected to the connecting seat.

4. The load bearing device of claim 3, wherein: A sliding piece is slidably arranged on the connecting seat, the second end and the fourth end are respectively connected to the sliding piece, and the sliding piece is linked to make the first surrounding frame and the second surrounding frame rotate relative to the connecting seat when the sliding piece slides relative to the connecting seat; Alternatively, the second end and the fourth end are each slidably connected to the connecting seat, and the second end and the fourth end are configured to be able to synchronously slide relative to the connecting seat.

5. The load bearing device of claim 4, wherein: A sliding groove extending in the up-down direction is formed in the connecting seat, and the sliding piece is slidably fitted in the sliding groove, wherein the sliding piece is a rotating shaft, and the second end and the fourth end are rotatably connected around the axis of the rotating shaft.

6. The load bearing device of claim 2, wherein: The carrying device is in the unfolded state, the two groups of first surrounding frames are arranged one above the other, the two groups of second surrounding frames are arranged one above the other, the linkage assembly is arranged between the first surrounding frame and the second surrounding frame on the upper side and the connecting seat; or the linkage assembly is arranged between the first surrounding frame and the second surrounding frame on the lower side and the connecting seat.

7. The load bearing device of claim 2, wherein: The first frame assembly comprises two groups of first frame, each group of first frame comprises two first frame rods, the two first frame rods are spaced apart along the width direction of the bearing device, and at least one group of first frame further comprises a first cross rod arranged between the two first frame rods; the second frame assembly comprises two groups of second frame, each group of second frame comprises two second frame rods, the two second frame rods are spaced apart along the width direction of the bearing device, and at least one group of second frame further comprises a second cross rod arranged between the two second frame rods; on each side of the bearing device in the width direction, the first frame rod and the second frame rod are connected with the connecting seat respectively, and a group of the linkage assembly is arranged on each side.

8. The load bearing device of claim 1, wherein: The frame is arranged between the upper part of the first support frame and the upper part of the second support frame, the connecting seat and the lower part of the first support frame and the lower part of the second support frame are close to each other when the bearing device is in the folded state; the bearing device further comprises a bearing assembly, the bearing assembly is arranged between the first support frame and the second support frame, the bearing assembly is located below the frame when the bearing device is in the unfolded state, and a bearing space is formed between the bearing assembly and the frame.

9. The load bearing device of claim 8, wherein: The bearing assembly comprises at least a first bearing member and a second bearing member, one end of the first bearing member is movably connected to the first support frame, one end of the second bearing member is movably connected to the second support frame, the first bearing member and the second bearing member are close to each other and are folded between the first support frame and the second support frame when the bearing device is in the folded state, and the connected ends of the first bearing member and the second bearing member are located above the connecting seat; And / or, the bearing device is in the unfolded state, the first frame assembly and / or the second frame assembly has a first spacing between the two groups of first frame and / or the two groups of second frame; the bearing assembly and the lowermost part of the frame have a second spacing, the second spacing is more than twice the first spacing.

10. The load bearing device of any one of claims 1 to 9, wherein: The first support frame comprises a first upper support and a first lower support, the first upper support and the first lower support can be folded along the length direction; the second support frame comprises a second upper support and a second lower support, the second upper support and the second lower support can be folded along the length direction; the frame is arranged between the first upper support and the second upper support.

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