Supporting structure and children's bed

Abstract

The utility model relates to the technical field of children products, and discloses a supporting structure and a children bed, and the supporting structure comprises a first side frame, a second side frame and a supporting frame. And the first side frame and the second side frame are movably connected and can be relatively unfolded or drawn close. The first end of the supporting frame is movably connected with the first side frame, and the second end of the supporting frame is movably connected with the second side frame. The supporting structure has an unfolded state and a folded state, in the unfolded state, the first side frame and the second side frame are oppositely unfolded, and the first end and the second end are located at the first position; in the folding state, the first side frame and the second side frame are relatively close to each other, and at least one of the first end and the second end moves to the second position. When the first side frame and the second side frame are relatively unfolded or drawn close, the first end and / or the second end of the supporting frame can be driven to correspondingly move to the first position or the second position, that is, the first side frame, the second side frame and the supporting frame can be synchronously unfolded or folded, the state of the supporting structure is adjusted, the operation convenience is good, and the structural design is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's products technical field especially, relate to a support structure and children's bed. BACKGROUND

[0002] The folding children's bed can be folded without disassembling, is convenient to store, is convenient to carry when going out, or is placed in a storage room or a gap space after folding, and only needs to be unfolded when using.

[0003] But the existing foldable children's bed is complex in structure design in order to realize folding, is difficult for the user to operate, and the size after folding is still large, which is inconvenient to store or carry.

[0004] Therefore, a support structure and children's bed are needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] Based on the above problems, the utility model aims at providing a support structure and children's bed which can simplify the structure design and improve the folding convenience of the children's bed.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] On the one hand, a support structure is provided, which comprises:

[0008] A first side frame and a second side frame are movably connected and can be unfolded or closed relative to each other;

[0009] A support frame is movably connected to the first end of the first side frame and the second end of the second side frame;

[0010] The support structure has an unfolded state and a folded state, in the unfolded state, the first side frame and the second side frame are unfolded relative to each other, and the first end and the second end of the support frame are in a first position; in the folded state, the first side frame and the second side frame are closed relative to each other, and at least one of the first end and the second end of the support frame is moved to a second position;

[0011] When the first side frame and the second side frame are unfolded or closed relative to each other, the first end and / or the second end of the support frame can be correspondingly moved to the first position or the second position, so that the support structure can be switched between the unfolded state and the folded state.

[0012] As an optional scheme of the support structure of the utility model, the straight-line distance between the first end and the second end of the support frame does not change when the second position is compared with the first position.

[0013] As optional scheme of the support structure of the utility model, the first side frame and the second side frame are relatively unfolded or close in the first direction, the first end and / or the second end of the support frame moves in the second direction relative to the first side frame and the second side frame, to switch between the first position and the second position, the first direction and the second direction are at the angle of intersection;

[0014] The first end of the support frame is slidably and rotatably connected with the first side frame, and / or the second end of the support frame is slidably and rotatably connected with the second side frame.

[0015] As optional scheme of the support structure of the utility model, when the first end is slidably and rotatably connected with the first side frame, a first sliding sleeve extending along the second direction is arranged on the first side frame, the first end of the support frame is provided with a first sliding rod extending along the second direction, the first sliding rod is slidably arranged in the first sliding sleeve, and the first sliding rod can rotate relative to the first sliding sleeve around its own axis.

[0016] When the second end is slidably and rotatably connected with the second side frame, a second sliding sleeve extending along the second direction is arranged on the second side frame, the second end of the support frame is provided with a second sliding rod extending along the second direction, the second sliding rod is slidably arranged in the second sliding sleeve, and the second sliding rod can rotate relative to the second sliding sleeve around its own axis.

[0017] As optional scheme of the support structure of the utility model, the support frame comprises a support base body and first and second support rods arranged at both ends of the support base body, the support base body is supported on a support base, one end of the first support rod away from the support base body is provided with the first sliding rod, and one end of the second support rod away from the support base body is provided with the second sliding rod.

[0018] And / or, one end of the first sliding rod away from the support frame is provided with a first limiting part, the first limiting part can limit the first sliding rod from being separated from the first sliding sleeve, one end of the second sliding rod away from the support frame is provided with a second limiting part, and the second limiting part can limit the second sliding rod from being separated from the second sliding sleeve.

[0019] And / or, the first end of the support frame is provided with a first adapter joint rotatable around its own axis, the first sliding rod is connected to the first adapter joint, and the rotation axis of the first adapter joint intersects with the axis where the first sliding rod is located, the second end of the support frame is provided with a second adapter joint rotatable around its own axis, the second sliding rod is connected to the second adapter joint, and the rotation axis of the second adapter joint intersects with the axis where the second sliding rod is located.

[0020] And / or, the first sliding sleeve is arranged outside the first side frame; and the second sliding sleeve is arranged outside the second side frame.

[0021] As an optional scheme of the support structure of the utility model, the first side frame and the second side frame each comprise a main rod body and first and second connecting rods separately arranged at two ends of the main rod body.

[0022] The first connecting rod of the first side frame is rotationally connected with the first connecting rod of the second side frame, and the end of the second connecting rod of the first side frame and the end of the second connecting rod of the second side frame maintain a preset gap, or the second connecting rod of the first side frame is rotationally connected with the second connecting rod of the second side frame; or,

[0023] The first connecting rod of the first side frame is slidingly connected with the first connecting rod of the second side frame, and the second connecting rod of the first side frame is slidingly connected with the second connecting rod of the second side frame.

[0024] As an optional scheme of the support structure of the utility model, when the support structure is folded, the first end of the support frame moves in a direction away from the second end relative to the first side frame and the second side frame; and when the support structure is unfolded, the first end of the support frame moves in a direction close to the second end relative to the first side frame and the second side frame.

[0025] And / or, when the support structure is folded, the first side frame and the second side frame are close to the support frame, and the first end and the second end of the support frame do not exceed the outer end of the first side frame and the second side frame.

[0026] As an optional scheme of the support structure of the utility model, two support frames are arranged, the two support frames are cross-arranged, the two support frames are away from each other when the support structure is in the unfolded state, and the two support frames are close to each other when the support structure is in the folded state.

[0027] The two support frames are rotationally connected at the cross point position by a first rotating shaft; or the two support frames are slidingly matched at the overlapping cross region.

[0028] As an optional scheme of the support structure of the utility model, among the two support frames, the upper support frame is arc-shapedly curved in the region overlapping the lower support frame, and the arc-shaped concave surface of the upper support frame faces the lower support frame.

[0029] And / or, among the two support frames, the lower support frame is provided with a support plane, and the support plane can contact a support base.

[0030] And / or, a support leg is arranged on the support frame, and the support leg is supported on a support base.

[0031] In another aspect, there is provided a child bed comprising a cloth cover and a support structure as described above, the cloth cover being mounted to the support structure, the cloth cover being in a tensioned state when the support structure is in the unfolded state, and the cloth cover being in a relaxed state when the support structure is in the folded state.

[0032] The support structure and the child bed have the following beneficial effects:

[0033] The support structure and the child bed have the following beneficial effects: The first end and the second end of the support frame are movably connected with the first side frame and the second side frame respectively, so that the first side frame and the second side frame can drive the support frame to be folded or unfolded, the design of the support structure is simplified, and the production cost of the product is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present application and the drawings without creative labor.

[0035] Figure 1 is a schematic view of the support structure in the unfolded state provided by the specific embodiment of the present application;

[0036] Figure 2 is an exploded schematic view of the support structure provided by the specific embodiment of the present application;

[0037] Figure 3 is a first folding process schematic view of the support structure provided by the specific embodiment of the present application;

[0038] Figure 4 is a second folding process schematic view of the support structure provided by the specific embodiment of the present application;

[0039] Figure 5 is a third folding process schematic view of the support structure provided by the embodiment of the utility model (the support structure is in a folded state);

[0040] Figure 6 is Figure 2 the local enlarged view at A in figure.

[0041] in the figure:

[0042] 1, first side frame; 2, second side frame; 3, support frame; 4, preset gap;

[0043] 11, main rod body; 12, first connecting rod; 13, second connecting rod;

[0044] 111, first sliding sleeve; 121, third adapter;

[0045] 21, second sliding sleeve; 22, first lug; 23, second lug; 24, rotating groove;

[0046] 301, first end; 302, second end; 31, support base body; 32, first support rod; 33, second support rod; 34, first sliding rod; 35, second sliding rod; 36, first adapter; 37, second adapter; 38, support leg; 39, rotating hole;

[0047] 341, first limiting portion; 351, second limiting portion;

[0048] 361, first plug-in portion; 371, second plug-in portion. DETAILED DESCRIPTION

[0049] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the embodiment of the utility model will be further described in detail below in conjunction with the drawings. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0050] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0051] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0052] Embodiment one

[0053] As shown in Figures 1 to 6 , the utility model provides a kind of support structure, can be applied to children's bed, can simplify structure design, improve the folding convenience of children's bed.The support structure includes first side frame 1, second side frame 2 and support frame 3.

[0054] Wherein, referring to Figure 1 And Figure 2 , first side frame 1 and second side frame 2 are movably connected, and can be relatively unfolded or close together.Support frame 3 is movably connected with first side frame 1 at first end 301, and support frame 3 is movably connected with second side frame 2 at second end 302.The support structure has unfolded state and folded state, when unfolded state, as shown in Figure 1 , first side frame 1 and second side frame 2 are unfolded relatively, and first end 301 and second end 302 of support frame 3 are in first position;When folded state, as shown in Figure 5 , first side frame 1 and second side frame 2 are close together relatively, and at least one of first end 301 and second end 302 of support frame 3 is moved to second position.First side frame 1 and second side frame 2 are unfolded or close together relatively, and can drive first end 301 and / or second end 302 of support frame 3 to correspondingly move to first position or second position, to switch the support structure between unfolded state and folded state.

[0055] The above-mentioned support structure can also be applied to foldable storage basket, stroller, trailer, game fence, seat and other products.

[0056] The support structure provided by the embodiment can drive the first end 301 and / or the second end 302 of the support frame 3 to correspondingly move to the first position or the second position while the first side frame 1 and the second side frame 2 are relatively expanded or closed, so that the first side frame 1, the second side frame 2 and the support frame 3 can be synchronously expanded and folded, thereby adjusting the support structure to the expanded state or the folded state, improving the operation convenience of the expansion and folding of the support structure, realizing the rapid expansion and folding of the support structure, and improving the user experience. Moreover, the first end 301 and the second end 302 of the support frame 3 are movably connected with the first side frame 1 and the second side frame 2 respectively, so that the first side frame 1 and the second side frame 2 can drive the support frame 3 to be folded together, which simplifies the design of the support structure and can reduce the production cost of the product.

[0057] As shown in Figure 1 , when the support structure is in the expanded state, the cloth cover on the support structure is in a tension state, forming a bearing space, which can be used as a child bed for children to lie or sit, and can also be used as a storage basket to bear and store articles. Figure 5 As shown in , when not in use, the support structure can be adjusted to the folded state to reduce the volume of the support structure, facilitating storage or carrying and saving storage space.

[0058] Figure 1 Optionally, the straight-line distance between the first end 301 and the second end 302 of the support frame 3 does not change when the support structure is switched from the expanded state to the folded state. Figure 5 As shown in , the straight-line distance between the first end 301 and the second end 302 of the support frame 3 does not change during the switching of the support structure from the expanded state to the folded state, only the support frame 3 as a whole is deflected by a certain angle relative to the first side frame 1 and the second side frame 2. Such an arrangement can ensure the integrity of the support frame 3, simplify the structural design of the support frame 3, and at the same time, does not affect the expansion and folding of the support frame 3 relative to the first side frame 1 and the second side frame 2.

[0059] Optionally, when the support structure is folded, the first end 301 of the support frame 3 moves relative to the first side frame 1 and the second side frame 2 in a direction away from the second end 302; when the support structure is expanded, the first end 301 of the support frame 3 moves relative to the first side frame 1 and the second side frame 2 in a direction close to the second end 302. In this way, the support frame 3 can adapt to the change trend of the distance between the first side frame 1 and the second side frame 2, and ensure that the support structure can be smoothly folded or expanded as a whole.

[0060] Figure 3 , Figure 4 and Figure 5, the first side frame 1 and the second side frame 2 are close to each other, and the first end 301 and the second end 302 of the support frame 3 do not exceed the outer ends of the first side frame 1 and the second side frame 2. That is, during the folding of the support structure, the two ends of the support frame 3 do not exceed the two ends of the first side frame 1 and the second side frame 2, so that the folded support structure is relatively neat and small in size, and is convenient to store and carry. Referring to the orientation in Figure 5 , the outer ends of the first side frame 1 and the second side frame 2 are the two ends in the left-right direction in Figure 5 .

[0061] Optionally, referring to Figure 1 , Figure 2 and Figure 5 , the first side frame 1 and the second side frame 2 are relatively expanded or close to each other in the first direction, and the first end 301 and / or the second end 302 of the support frame 3 moves relative to the first side frame 1 and the second side frame 2 in the second direction to switch between the first position and the second position, and the first direction and the second direction form an included angle.

[0062] In this embodiment, the first end 301 of the support frame 3 can move relative to the first side frame 1 in the second direction, and the second end 302 of the support frame 3 can move relative to the second side frame 2 in the second direction. When folding the support structure, the first side frame 1 and the second side frame 2 are operated to move close to each other in the first direction, and at the same time, the first end 301 of the support frame 3 moves relative to the first side frame 1 in the second direction, the second end 302 of the support frame 3 moves relative to the second side frame 2 in the second direction, and the first end 301 and the second end 302 move relative to the first side frame 1 and the second side frame 2 in a direction away from each other, so that the support frame 3 adapts to the trend that the interval between the first side frame 1 and the second side frame 2 in the first direction becomes smaller, and the overall folding of the support structure is realized.

[0063] Correspondingly, when unfolding the support structure, the first side frame 1 and the second side frame 2 are operated to move away from each other in the first direction, and at the same time, the first end 301 of the support frame 3 moves relative to the first side frame 1 in the second direction, the second end 302 of the support frame 3 moves relative to the second side frame 2 in the second direction, and the first end 301 and the second end 302 move relative to the first side frame 1 and the second side frame 2 in a direction close to each other, so that the support frame 3 adapts to the trend that the interval between the first side frame 1 and the second side frame 2 in the first direction becomes larger, and the overall unfolding of the support structure is realized.

[0064] In this embodiment, the first direction is perpendicular to the second direction, the first direction is the X direction in Figure 1 , and the second direction is the Y direction in Figure 1 . In other embodiments, the first direction and the second direction can also be approximately perpendicular or form an acute angle, etc., as long as the overall folding and unfolding of the support structure can be realized.

[0065] Optionally, the first end 301 of the support frame 3 is slidingly and rotatably connected with the first side frame 1. The second end 302 of the support frame 3 is slidingly and rotatably connected with the second side frame 2. During the relative unfolding or closing of the first side frame 1 and the second side frame 2 along the second direction, the first end 301 of the support frame 3 can slide relative to the first side frame 1 and rotate relative to the first side frame 1, and at the same time, the second end 302 of the support frame 3 can slide relative to the second side frame 2 and rotate relative to the second side frame 2, so as to ensure that the support frame 3 can adapt to the angle change between the support frame 3 and the first side frame 1 and the second side frame 2, and adapt to the interval change between the first side frame 1 and the second side frame 2, so that the support structure can be smoothly unfolded and folded.

[0066] Optionally, referring to Figure 1 and Figure 2 , the first side frame 1 is provided with a first sliding sleeve 111 extending along the second direction, and the first end 301 of the support frame 3 is provided with a first sliding rod 34 extending along the second direction, the first sliding rod 34 slidingly penetrating the first sliding sleeve 111 and being capable of rotating relative to the first sliding sleeve 111 about the axis of the first sliding rod 34. The second side frame 2 is provided with a second sliding sleeve 21 extending along the second direction, and the second end 302 of the support frame 3 is provided with a second sliding rod 35 extending along the second direction, the second sliding rod 35 slidingly penetrating the second sliding sleeve 21 and being capable of rotating relative to the second sliding sleeve 21 about the axis of the second sliding rod 35.

[0067] During the relative unfolding or closing of the first side frame 1 and the second side frame 2 along the second direction, as shown in Figure 1 , Figure 3 , Figure 4 and Figure 5 , the first sliding rod 34 slides in the first sliding sleeve 111, and the second sliding rod 35 slides in the second sliding sleeve 21 (wherein, during the closing, the first sliding rod 34 and the second sliding rod 35 slide along the straight arrow direction in Figure 3 , Figure 4 and Figure 5 ), and at the same time, the first sliding rod 34 rotates relative to the first sliding sleeve 111 (i.e. relative to the first side frame 1) about the axis of the first sliding rod 34, and the second sliding rod 35 rotates relative to the second sliding sleeve 21 (i.e. relative to the second side frame 2) about the axis of the second sliding rod 35, so as to adapt to the angle change between the first side frame 1 and the support frame 3, and adapt to the angle change between the second side frame 2 and the support frame 3, and ensure that the support structure is unfolded and folded smoothly. The first sliding sleeve 111 and the second sliding sleeve 21 can limit the movement direction of the first end 301 of the support frame 3 relative to the first side frame 1, and limit the movement direction of the second end 302 of the support frame 3 relative to the second side frame 2, so as to ensure that the support frame 3 can be folded or unfolded to a preset state according to a preset track.

[0068] Referring to Figure 1 and Figure 5The first sliding sleeve 111 is arranged on the outer side of the first side frame 1, and the second sliding sleeve 21 is arranged on the outer side of the second side frame 2. In this way, when the support structure is folded, the first side frame 1 and the second side frame 2 can be close to each other, so as to reduce the volume of the support structure after being folded. For reference, Figure 1 , the first sliding sleeve 111 and the first side frame 1 are taken as an example, wherein the outer side includes the upper side, the lower side and the rear side (the side of the first side frame 1 facing away from the second side frame 2) of the first side frame 1.

[0069] Of course, in other embodiments, the first sliding sleeve 111 can also be arranged on the inner side of the first side frame 1. The second sliding sleeve 21 can also be arranged on the inner side of the second side frame 2.

[0070] Optionally, referring to Figure 1 , Figure 2 and Figure 5 , the first limiting part 341 is arranged at the end of the first sliding rod 34 away from the support frame 3, and the first limiting part 341 can limit the first sliding rod 34 from being separated from the first sliding sleeve 111. When the first sliding rod 34 is slid to the end of the first sliding sleeve 111 stopped by the first limiting part 341, it indicates that the first end 301 of the support frame 3 is moved to the position relative to the first side frame 1, the support structure is folded to the preset state, and the support frame 3 can be prevented from being separated from the first side frame 1.

[0071] Continuing to refer to Figure 1 , Figure 2 and Figure 5 , the second limiting part 351 is arranged at the end of the second sliding rod 35 away from the support frame 3, and the second limiting part 351 can limit the second sliding rod 35 from being separated from the second sliding sleeve 21. When the second sliding rod 35 is slid to the end of the second sliding sleeve 21 stopped by the second limiting part 351, it indicates that the second end 302 of the support frame 3 is moved to the position relative to the second side frame 2, the support structure is folded to the preset state, and the support frame 3 can be prevented from being separated from the second side frame 2, so as to ensure that the support structure can be stably kept in the folded state after being folded.

[0072] Exemplarily, the first limiting part 341 is a first limiting cover sleeved on the end of the first sliding rod 34, the cross-sectional dimension of the first limiting cover is greater than the cross-sectional dimension of the first sliding sleeve 111, and the first sliding rod 34 can be prevented from being separated from the first sliding sleeve 111. The second limiting part 351 is a second limiting cover sleeved on the end of the second sliding rod 35, the cross-sectional dimension of the second limiting cover is greater than the cross-sectional dimension of the second sliding sleeve 21, and the second sliding rod 35 can be prevented from being separated from the second sliding sleeve 21.

[0073] Optionally, the first limiting cover can be threadedly connected to the first slide rod 34, and the second limiting cover can be threadedly connected to the second slide rod 35; or, the first limiting cover can be insertedly connected or adhesively fixed to the first slide rod 34 (the second limiting cover can be insertedly connected or adhesively fixed to the second slide rod 35), as long as the connection is firm. In other embodiments, the first limiting part 341 and the second limiting part 351 can also be limiting pins.

[0074] In some other embodiments, the support frame 3 can be designed such that only the first end 301 of the support frame 3 can move relative to the first side frame 1, i.e., the first end 301 is in sliding and rotating connection with the first side frame 1, or only the second end 302 of the support frame 3 can move relative to the second side frame 2, i.e., the second end 302 is in sliding and rotating connection with the second side frame 2. At this time, during the folding or unfolding of the support structure, the first end 301 of the support frame 3 moves relative to the first side frame 1, or the second end 302 of the support frame 3 moves relative to the second side frame 2, so that the support frame 3 adapts to the change in the distance between the first side frame 1 and the second side frame 2.

[0075] Optionally, referring to Figure 1 and Figure 2 , the first end 301 of the support frame 3 is provided with a first rotating joint 36 which can rotate about its own axis, and the first slide rod 34 is connected to the first rotating joint 36, and the rotating axis of the first rotating joint 36 intersects with the axis along which the first slide rod 34 extends. The second end 302 of the support frame 3 is provided with a second rotating joint 37 which can rotate about its own axis, and the second slide rod 35 is connected to the second rotating joint 37, and the rotating axis of the second rotating joint 37 intersects with the axis along which the second slide rod 35 extends. When the first side frame 1 and the second side frame 2 are relatively unfolded or moved closer to each other, the first end 301 of the support frame 3 can rotate relative to the first rotating joint 36, and the second end 302 of the support frame 3 can rotate relative to the second rotating joint 37, so as to adapt to the change in the angle between the support frame 3 and the first slide rod 34 and the second slide rod 35, prevent interference, and ensure smooth unfolding and folding of the support structure.

[0076] In this embodiment, referring to the positions in Figure 1 and Figure 2 , the rotating axes of the first rotating joint 36 and the second rotating joint 37 both extend in the vertical direction, i.e., the Z direction in Figure 1 , and the axes of the first slide rod 34 and the second slide rod 35 both extend in the horizontal direction, i.e., the Y direction in Figure 1 .

[0077] As shown in Figure 2As shown, the first adapter 36 is provided with a first plug-in part 361, and the second adapter 37 is provided with a second plug-in part 371. The first plug-in part 361 and the second plug-in part 371 both extend in the vertical direction. The first end 301 and the second end 302 of the support frame 3 are both provided with a plug-in cavity. The first plug-in part 361 can be plugged into the plug-in cavity of the first end 301 and rotationally connected with the plug-in cavity. The second plug-in part 371 can be plugged into the plug-in cavity of the second end 302 and rotationally connected with the plug-in cavity. The axis of the first plug-in part 361 is the rotation axis of the first adapter 36. The axis of the second plug-in part 371 is the rotation axis of the second adapter 37.

[0078] Optionally, as shown in Figure 1 and Figure 2 , the support frame 3 includes a support base 31 and first and second support rods 32 and 33 arranged at two ends of the support base 31. The support base 31 is supported on a support base. The first support rod 32 is provided with a first sliding rod 34 at an end away from the support base 31. The second support rod 33 is provided with a second sliding rod 35 at an end away from the support base 31. In this embodiment, as shown in Figure 1 , the support frame 3 is substantially U-shaped. When the support structure is in the unfolded state, the support frame 3 can be enclosed with the first side frame 1 and the second side frame 2 to form a bearing space, which is convenient for users to use. The support base can be the ground, a table top, or the like.

[0079] In other embodiments, the support base 31 of the support frame 3 can also be a plate structure with a certain width, which can increase the support stability. Alternatively, the support base 31 can also be a support structure arranged in a cross manner.

[0080] Optionally, as shown in Figure 1 and Figure 2 , two support frames 3 are arranged. When the support structure is in the unfolded state, the two support frames 3 are away from each other. When the support structure is in the folded state, the two support frames 3 are close to each other. When the support structure is in the unfolded state, the two support frames 3 are away from each other, which can form at least four-point support, increase the contact points between the support structure and the support base, and improve the support stability of the support structure.

[0081] In other embodiments, one support frame 3 or three or more support frames 3 can also be arranged, which is not limited to the number listed in this embodiment.

[0082] Optionally, the two support frames 3 are rotationally connected through a first rotating shaft at the intersection position. As shown in Figure 2As shown, the two support frames 3 are both provided with rotating holes 39 at the intersection, and the first rotating shaft is rotatably arranged in the rotating holes 39 of the two support frames 3 to realize the rotating connection of the two support frames 3. The rotating connection of the two support frames 3 at the intersection can make the two ends of the two support frames 3 approach or move away from each other synchronously, thereby improving the stability of the unfolding and folding operation of the support structure.

[0083] In other embodiments, the two support frames 3 can also be arranged in a cross manner, but the two support frames 3 are slidingly fitted in the overlapping intersection region. Specifically, in the present embodiment Figure 1 and Figure 2 In the unfolding and folding process of the support structure, the support bases 31 of the two support frames 3 are slidingly fitted, and the two support frames 3 can also move closer to or away from each other with the first side frame 1 and the second side frame 2.

[0084] Optionally, as shown in Figure 2 and Figure 4 , of the two support frames 3, the upper support frame 3 is arc-shapedly curved in the region overlapping with the lower support frame 3, and the arc-shaped concave surface of the upper support frame 3 faces the lower support frame 3. The arc-shaped curved design can make the two ends of the upper support frame 3 more easily approach the support base, thereby improving the support stability of the support structure in the unfolded state. As shown in Figure 2 , the support base 31 of the upper support frame 3 is arc-shapedly curved.

[0085] Optionally, of the two support frames 3, the lower support frame 3 is provided with a support plane capable of contacting the support base. The support plane can increase the contact area of the support frame 3 with the support base, thereby further improving the support stability of the support structure on the support base in the unfolded state. In the present embodiment, the side of the support base 31 of the lower support frame 3 facing the support base is designed as a support plane.

[0086] Optionally, as shown in Figure 2 and Figure 4 , the support frame 3 is provided with a support leg 38 supported on the support base. The support leg 38 can further increase the grip of the support frame 3 and improve the support stability of the support frame 3 in the unfolded state.

[0087] Exemplarily, as shown in Figure 4 , only the upper support frame 3 of the two support frames 3 is provided with a support leg 38. Since the upper support frame 3 cannot directly contact the support base, the addition of the support leg 38 can ensure that the upper support frame 3 can also be stably supported on the support base. Of course, in other embodiments, the support leg 38 can also be arranged on each support frame 3.

[0088] In some embodiments, the support leg 38 can be a support protrusion protruding from the support frame 3.

[0089] In some embodiments, the support legs 38 can be mobile wheels mounted on the support frame 3, which can realize the overall movement of the support structure.

[0090] Optionally, referring to Figure 1 and Figure 2 , the first side frame 1 and the second side frame 2 each include a main rod body 11 and first and second connecting rods 12 and 13 respectively arranged at both ends of the main rod body 11. The first side frame 1 and the second side frame 2 each have a U shape, and when the support structure is in the unfolded state, the first side frame 1 and the second side frame 2 are spliced to form a rectangular frame, which can serve as an upper support frame of the support structure.

[0091] As shown in Figure 1 , the first connecting rod 12 of the first side frame 1 is rotationally connected with the first connecting rod 12 of the second side frame 2, and the end of the second connecting rod 13 of the first side frame 1 and the end of the second connecting rod 13 of the second side frame 2 maintain a predetermined gap 4. When the first side frame 1 and the second side frame 2 are unfolded or closed relative to each other, the first side frame 1 and the second side frame 2 rotate relative to each other at the rotationally connected positions of the two first connecting rods 12 to realize rotational unfolding or rotational closing. The predetermined gap 4 between the second connecting rod 13 of the first side frame 1 and the second connecting rod 13 of the second side frame 2 can prevent interference between the two second connecting rods 13, ensuring that the first side frame 1 and the second side frame 2 can be smoothly rotated relative to each other.

[0092] In other embodiments, as shown in Figure 2 , the first connecting rod 12 of the first side frame 1 can also be rotationally connected with the first connecting rod 12 of the second side frame 2, and at the same time, the second connecting rod 13 of the first side frame 1 is rotationally connected with the second connecting rod 13 of the second side frame 2. During the relative unfolding or closing of the first side frame 1 and the second side frame 2, the positions of the two first connecting rods 12 connected with each other rotate, and the positions of the two second connecting rods 13 connected with each other rotate, which can improve the stability of the relative rotation of the first side frame 1 and the second side frame 2.

[0093] Optionally, referring to Figure 2 and Figure 6 , the first connecting rod 12 and / or the second connecting rod 13 of one of the first side frame 1 and the second side frame 2 are provided with a third adapter 121, and the first connecting rod 12 and / or the second connecting rod 13 of the other of the first side frame 1 and the second side frame 2 are provided with a rotation slot 24, and the third adapter 121 is rotationally installed in the corresponding rotation slot 24 to realize the rotational connection of the first side frame 1 and the second side frame 2. As shown in Figure 6As shown, the end of the first connecting rod 12 of the first side frame 1 is provided with a third adapter 121, and the end of the first connecting rod 12 of the second side frame 2 is provided with a first lug 22 and a second lug 23, and a rotating groove 24 is formed between the first lug 22 and the second lug 23, and the third adapter 121 is inserted between the first lug 22 and the second lug 23 (i.e. in the rotating groove 24), and is connected with the first lug 22 and the second lug 23 through a second rotating shaft, so as to realize the rotating connection of the first side frame 1 and the second side frame 2.

[0094] In an optional embodiment, as shown in Figure 1 only the first connecting rod 12 of the first side frame 1 is provided with the third adapter 121, and the first connecting rod 12 of the second side frame 2 is provided with the rotating groove 24.

[0095] In another optional embodiment, as shown in Figure 2 the first connecting rod 12 and the second connecting rod 13 of the first side frame 1 are both provided with the third adapter 121, and the first connecting rod 12 and the second connecting rod 13 of the second side frame 2 are both provided with the rotating groove 24, and the two third adapters 121 are rotatably connected with the two rotating grooves 24 one by one.

[0096] Embodiment Two

[0097] The embodiment provides a support structure, which is different from the embodiment one in that:

[0098] Optionally, the first side frame 1 and the second side frame 2 both comprise a main rod body 11 and a first connecting rod 12 and a second connecting rod 13 arranged at two ends of the main rod body 11, the first connecting rod 12 of the first side frame 1 is slidably connected with the first connecting rod 12 of the second side frame 2, and the second connecting rod 13 of the first side frame 1 is slidably connected with the second connecting rod 13 of the second side frame 2. That is, when the support structure is folded, the first connecting rod 12 of the first side frame 1 and the first connecting rod 12 of the second side frame 2 are relatively slid and overlapped, and the second connecting rod 13 of the first side frame 1 and the second connecting rod 13 of the second side frame 2 are relatively slid and overlapped, so that the first side frame 1 and the second side frame 2 are relatively close to each other.

[0099] In order to reduce the volume of the folded support structure, the first connecting rod 12 and the second connecting rod 13 can be designed as telescopic rods which are arranged in sequence and can be telescoped, so that the first side frame 1 and the second side frame 2 can be as close as possible when being folded and close to each other.

[0100] Embodiment Three

[0101] The embodiment provides a child bed, which comprises a cloth cover and a support structure as described in any one of the above embodiments, the cloth cover is mounted on the support structure, the cloth cover is in a tension state when the support structure is in an unfolded state, and the cloth cover is in a slack state when the support structure is in a folded state. The cloth cover can be connected to the first side frame 1 and the second side frame 2, or can be connected to the first side frame 1, the second side frame 2 and the support frame 3 simultaneously. When the support structure is unfolded, the first side frame 1 and the second side frame 2 stretch the cloth cover, the cloth cover is in a tension state, and a space for a child to lie or sit is formed. When the support structure is folded, the cloth cover is folded with the support structure, and the cloth cover is in a slack state, so that the volume of the child bed is reduced, and the child bed is convenient to store and carry.

[0102] Further, the cloth cover is designed to have an avoiding space in a region corresponding to the first sliding rod 34 on the first side frame 1 and a region corresponding to the second sliding rod 35 on the second side frame 2, or a part of the cloth cover is elastically arranged, so as to avoid the cloth cover from interfering with the unfolding and folding of the support frame 3.

[0103] The child bed provided by the embodiment is convenient to unfold and fold, so that the child bed can be quickly unfolded and folded, and the use experience of a user is improved. In addition, the support structure is simple in structure design, and the production cost of the child bed product is reduced.

[0104] It should be noted that the above are only the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A support structure, characterized by, The utility model relates to a support structure of a foldable frame, comprising: a first side frame and a second side frame, which are movably connected and capable of being relatively unfolded or closed; a support frame, a first end of which is movably connected to the first side frame, and a second end of which is movably connected to the second side frame; the support structure has an unfolded state and a folded state, in the unfolded state, the first side frame and the second side frame are relatively unfolded, and the first end and the second end of the support frame are in a first position; in the folded state, the first side frame and the second side frame are relatively closed, and at least one of the first end and the second end of the support frame is moved to a second position; when the first side frame and the second side frame are unfolded or closed, the first end and / or the second end of the support frame can be correspondingly moved to the first position or the second position, so that the support structure is switched between the unfolded state and the folded state.

2. The support structure of claim 1, wherein, The linear distance between the first end and the second end of the support frame is unchanged when the second position is compared with the first position.

3. The support structure of claim 1, wherein, The first side frame and the second side frame are unfolded or closed in a first direction, and the first end and / or the second end of the support frame is moved relative to the first side frame and the second side frame in a second direction to switch between the first position and the second position, the first direction and the second direction form an angle; the first end of the support frame is slidably and rotatably connected to the first side frame; and / or, the second end of the support frame is slidably and rotatably connected to the second side frame.

4. The support structure of claim 3, wherein, When the first end is slidably and rotatably connected to the first side frame, a first sliding sleeve extending in the second direction is arranged on the first side frame, the first end of the support frame is provided with a first sliding rod extending in the second direction, the first sliding rod is slidably arranged in the first sliding sleeve, and the first sliding rod can rotate relative to the first sliding sleeve about its own axis; When the second end is slidably and rotatably connected to the second side frame, a second sliding sleeve extending in the second direction is arranged on the second side frame, the second end of the support frame is provided with a second sliding rod extending in the second direction, the second sliding rod is slidably arranged in the second sliding sleeve, and the second sliding rod can rotate relative to the second sliding sleeve about its own axis.

5. The support structure of claim 4, wherein, The support frame comprises a support base body and first and second support rods arranged at two ends of the support base body, the support base body is supported on a support base, one end of the first support rod away from the support base body is provided with the first sliding rod, and one end of the second support rod away from the support base body is provided with the second sliding rod; and / or, one end of the first sliding rod away from the support frame is provided with a first limiting part capable of limiting the first sliding rod from being separated from the first sliding sleeve, and one end of the second sliding rod away from the support frame is provided with a second limiting part capable of limiting the second sliding rod from being separated from the second sliding sleeve; And / or, the first end of the support frame is provided with a first rotary joint rotatable about its own axis, the first sliding rod is connected to the first rotary joint, and the rotation axis of the first rotary joint intersects with the axis along which the first sliding rod extends; the second end of the support frame is provided with a second rotary joint rotatable about its own axis, the second sliding rod is connected to the second rotary joint, and the rotation axis of the second rotary joint intersects with the axis along which the second sliding rod extends; And / or, the first sliding sleeve is arranged outside the first side frame; and the second sliding sleeve is arranged outside the second side frame.

6. Support structure according to any of claims 1-5, characterized in that The first side frame and the second side frame each include a main rod body and first and second connecting rods arranged at two ends of the main rod body; The first connecting rod of the first side frame is rotationally connected to the first connecting rod of the second side frame, and the end of the second connecting rod of the first side frame and the end of the second connecting rod of the second side frame are kept at a preset gap, or the second connecting rod of the first side frame is rotationally connected to the second connecting rod of the second side frame; or, The first connecting rod of the first side frame is slidingly connected to the first connecting rod of the second side frame, and the second connecting rod of the first side frame is slidingly connected to the second connecting rod of the second side frame.

7. Support structure according to any of claims 1-5, characterized in that When the support structure is folded, the first end of the support frame moves away from the second end relative to the first side frame and the second side frame; when the support structure is unfolded, the first end of the support frame moves toward the second end relative to the first side frame and the second side frame. And / or, when the support structure is folded, the first side frame and the second side frame are moved toward the support frame, and the first end and the second end of the support frame do not exceed the outer ends of the first side frame and the second side frame.

8. The support structure of any of claims 1-5, wherein, The support frame is provided with two support frames, and the two support frames are arranged in a cross manner, the two support frames are moved away from each other when the support structure is in the unfolded state, and the two support frames are moved toward each other when the support structure is in the folded state. The two support frames are rotationally connected through a first rotating shaft at a cross position. Or, the two support frames are slidingly connected in an overlapping cross region.

9. The support structure of claim 8, wherein, Of the two support frames, the upper support frame is curved in an arc shape in the region overlapping the lower support frame, and the arc-shaped concave surface of the upper support frame faces the lower support frame. And / or, of the two support frames, the lower support frame is provided with a support plane capable of being in contact with a support base. And / or, a support leg is arranged on the support frame and supported on a support base.

10. A child's bed characterised in that, The support structure includes a cloth cover and a support structure according to any one of claims 1-9, the cloth cover is mounted on the support structure, the cloth cover is in a tension state when the support structure is in the unfolded state, and the cloth cover is in a relaxed state when the support structure is in the folded state.

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