Folding frame and appliance for children

Abstract

The utility model discloses a folding frame and a child appliance, and relates to the technical field of child appliances, the folding frame comprises a frame, a rolling part and a transmission mechanism, the frame comprises a plurality of stand columns, the plurality of stand columns can be arranged close to and away from each other, and at least one stand column is a first stand column; the rolling part is arranged at the bottom of the first stand column, and at least one of the rolling part and the bottom of the first stand column is arranged to be a movable part, so that the rolling part and the bottom of the first stand column have opposite up-down movement strokes; the rolling part is provided with a protruding position relative to the bottom of the first stand column and a retracting position relative to the bottom of the first stand column. The transmission mechanism is arranged between the frame and the movable part; according to the technical scheme, the situation that it is difficult for a user to fold the frame of the child bed is relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's appliance technical field, especially a folding frame and children's appliance. BACKGROUND

[0002] The existing children's bed usually has the functions of unfolding and folding, when the frame of the children's bed is switched from the unfolded state to the folded state, the four vertical rods of the frame are away from each other, the four vertical rods will contact the ground, and the frictional resistance between the vertical rods and the ground will hinder the movement of the vertical column, thereby causing the user to have difficulty in folding the frame of the children's bed. SUMMARY

[0003] The utility model discloses a folding frame and children's appliance, which aims to alleviate the difficulty of folding the frame of the children's bed.

[0004] To achieve the above-mentioned purpose, the folding frame provided by the utility model comprises:

[0005] A frame comprises a plurality of columns, the plurality of columns can be arranged close to each other and away from each other, so that the frame has a folded state and an unfolded state, and at least one of the columns is a first column;

[0006] A rolling part is arranged at the bottom of the first column, at least one of the rolling part and the bottom of the first column is arranged as a movable part, so that the rolling part and the bottom of the first column have a relative up-down movement stroke, in the up-down movement stroke, the rolling part has a protruding position protruding downward relative to the bottom of the first column, and a retracted position retracted upward relative to the bottom of the first column; and

[0007] A transmission mechanism is arranged between the frame and the movable part, so that when the frame is converted from the unfolded state to the folded state, the transmission mechanism drives the rolling part to move to the protruding position.

[0008] In an embodiment, the rolling part is movably installed at the bottom of the first column.

[0009] In an embodiment, the frame further comprises an upper surrounding rod assembly arranged between two adjacent columns, and the two adjacent columns comprise the first column, the upper surrounding rod assembly comprises a plurality of first connecting rods, the plurality of first connecting rods are rotationally connected two by two, and the first connecting rods at both ends are rotationally connected with the columns, so that when the two columns are close to each other, the plurality of first connecting rods can be rotationally folded.

[0010] The transmission mechanism is rotationally connected with the rolling part and one of the first connecting rods;

[0011] Corresponding to one of the upper rod assemblies, the first connecting rod is provided with two.

[0012] In an embodiment, the transmission mechanism comprises:

[0013] a transmission member movably arranged in the first upright along the up-down direction; and

[0014] a first linkage rod rotatably connected to one end of the transmission member and rotatably connected to the other end of the first connecting rod connected to the first upright;

[0015] wherein the rolling part is arranged at the bottom end of the transmission member.

[0016] In an embodiment, the first upright is formed with a movable cavity passing downward, and the sidewall of the first upright is formed with a first clearance hole passing to the movable cavity and extending along the up-down direction;

[0017] the transmission member comprises a transmission core part arranged in the movable cavity and a first connecting part connected to the transmission core part through the first clearance hole, and the first connecting part is connected to the first linkage rod;

[0018] wherein the rolling part is arranged at the bottom end of the transmission core part;

[0019] the first connecting part comprises a first connecting sleeve sleeved on the first upright;

[0020] wherein the first linkage rod is connected to the first connecting sleeve.

[0021] In an embodiment, the frame further comprises a lower connecting rod assembly, the lower connecting rod assembly comprises a plurality of second connecting rods rotatably connected between two of the uprights, and two of the second connecting rods are rotatably connected to each other, and the two uprights comprise the first upright;

[0022] the transmission mechanism is at least transmissionally connected to the rolling part and one of the second connecting rods.

[0023] In an embodiment, the transmission mechanism comprises:

[0024] a transmission member movably arranged in the first upright along the up-down direction; and

[0025] a second linkage rod rotatably connected to one end of the transmission member and rotatably connected to the other end of the second connecting rod connected to the first upright;

[0026] wherein the rolling part is arranged at the bottom end of the transmission member.

[0027] In an embodiment, a movable cavity is formed in the first column and extends downwardly, and a second accommodating hole is formed in the sidewall of the column and extends upwardly and downwardly to the movable cavity;

[0028] The transmission member comprises a transmission core portion arranged in the movable cavity and a second connecting portion connected to the transmission core portion through the second accommodating hole, and the second connecting portion is connected to the second linkage rod;

[0029] The rolling portion is arranged at the bottom end of the transmission core portion;

[0030] The second connecting portion comprises a second connecting sleeve arranged in the first column;

[0031] The second linkage rod is connected to the second connecting sleeve.

[0032] In an embodiment, the second linkage rod connected to the first column is arranged as a driving lever, and the driving lever comprises a rotating portion and a driving end;

[0033] The rotating portion of the driving lever is rotatably connected to the first column, and the driving end is arranged on the side of the rotating portion close to the first column and rotates downwardly when the driving lever is folded;

[0034] The second linkage rod is drivingly connected between the driving end and the transmission member;

[0035] At least one mounting plate extends laterally from the bottom of the first column;

[0036] The rotating portion of the driving lever is rotatably arranged on the mounting plate, and a third accommodating hole is arranged on the mounting plate corresponding to the driving end and extends along the circumference of the rotating portion;

[0037] The second linkage rod is connected to the driving end through the third accommodating hole.

[0038] The utility model also provides a children's appliance, which comprises the folding frame described in any one of the above embodiments; and the children's appliance comprises a children's bed.

[0039] The technical scheme provided by the utility model, the mutual approaching and moving away of multiple stand columns in the frame realizes the switching of the frame between the folded state and the unfolded state, meanwhile, the bottom of the first stand column in the multiple stand columns is provided with a rolling part, and meanwhile, in the process that the frame moves from the unfolded state to the folded state, the rolling part can protrude downwards to a protruding position relative to the bottom of the stand column, at the position, the rolling part can contact the ground, so that the sliding friction between the first stand column and the ground is changed into the rolling friction between the rolling part and the ground, so that the frictional resistance of the ground to the first stand column is reduced, and the difficulty of the user in unfolding and folding the children's appliance is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structure shown in the drawings without the creative labor of the ordinary skilled in the art.

[0041] Figure 1 The structural schematic diagram of an embodiment of the folding frame provided by the utility model is shown in the figure.

[0042] Figure 2 The structural schematic diagram of an embodiment of the folding frame provided by the utility model is shown in the figure. Figure 1 The partial structural schematic diagram of the folding frame (the frame is in the folded state) is shown in the figure.

[0043] Figure 3 The structural schematic diagram of an embodiment of the folding frame provided by the utility model is shown in the figure. Figure 2 The sectional structure schematic diagram of the folding frame is shown in the figure.

[0044] Figure 4 The structural schematic diagram of an embodiment of the folding frame provided by the utility model is shown in the figure. Figure 3 The enlarged structural schematic diagram of the partial A is shown in the figure.

[0045] Figure 5 The structural schematic diagram of an embodiment of the folding frame provided by the utility model is shown in the figure. Figure 1 The partial structural schematic diagram of the folding frame (the frame is in the intermediate state) is shown in the figure.

[0046] Figure 6 The sectional structure schematic diagram of the folding frame is shown in the figure. Figure 5 The sectional structure schematic diagram of the folding frame is shown in the figure.

[0047] Figure 7 The structural schematic diagram of an embodiment of the folding frame provided by the utility model is shown in the figure. Figure 6 The enlarged structural schematic diagram of the partial B is shown in the figure.

[0048] Figure 8 The structural schematic diagram of an embodiment of the folding frame provided by the utility model is shown in the figure. Figure 1 The partial structural schematic diagram of the folding frame (the frame is in the unfolded state) is shown in the figure.

[0049] Figure 9 The structural schematic diagram of an embodiment of the folding frame provided by the utility model is shown in the figure.Figure 8 Schematic view of sectional structure of folding frame;

[0050] Figure 10 For Figure 9 Schematic view of enlarged structure of local part C;

[0051] Figure 11 For Figure 9 Schematic view of partial structure of folding frame;

[0052] Figure 12 For Figure 11 Schematic view of enlarged structure of local part D.

[0053] Brief description of the drawings:

[0054] 100, folding frame;

[0055] 1, frame; 11, stand column; 11a, first displacement hole; 11b, second displacement hole; 11c, passing hole; 111, first stand column; 112, mounting plate; 112a, third displacement hole; 12, upper surrounding rod assembly; 121, first connecting rod; 1211, second channel; 122, hinged seat; 13, lower connecting rod assembly; 131, second connecting rod; 1311, driving lever; 13111, rotating part; 132, base; 2, rolling part; 3, transmission mechanism; 31, transmission piece; 311, transmission core part; 3111, upper transmission end; 31111, groove; 312, first connecting part; 3121, first connecting sleeve; 313, second connecting part; 3131, second connecting sleeve; 32, first linkage rod; 33, second linkage rod; 34, second transmission piece; 341, second connecting rod; 40, locking piece; 51, abutting surface; 522, limiting seat; 523, protruding column; 524, matching surface; 53, stop seat; 54, elastic piece; 60, angle connecting piece.

[0056] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. Specific implementation

[0057] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0058] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, if the specific posture changes, the directionality indication also changes accordingly.

[0059] In addition, if the embodiments of the utility model have descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the utility model.

[0060] The existing children's bed usually has the functions of unfolding and folding, when the frame of the children's bed is switched from the unfolded state to the folded state, the four vertical rods of the frame are away from each other, and the four vertical rods will contact the ground. The frictional resistance between the vertical rod and the ground will hinder the movement of the vertical column, thereby causing the user to have difficulty in folding the children's bed.

[0061] According to the analysis of the above problems, first, the user cannot directly lift the frame of the children's bed to fold the four vertical rods in space, therefore, the frictional resistance between the vertical column and the ground cannot be avoided, and the above problems can be alleviated by reducing the frictional resistance.

[0062] Therefore, the utility model provides a folding frame and a children's tool, the application scenarios of the folding frame include but are not limited to children's tools, and the folding frame can also be used for placing sundries. When the folding frame is applied to the children's tool, the folding frame can at least alleviate the difficulty of the user in unfolding and folding the frame of the children's bed. Among them, Figure 1 The structure schematic diagram of an embodiment of the folding frame provided by the utility model; Figure 2 The structure schematic diagram of an embodiment of the folding frame provided by the utility model; Figure 1 The partial structure schematic diagram of the folding frame (the frame is in the folded state) in the embodiment of the utility model; Figure 3 The partial structure schematic diagram of the folding frame (the frame is in the unfolded state) in the embodiment of the utility model; Figure 2 The cross-sectional structure schematic diagram of the folding frame in the embodiment of the utility model; Figure 4 The cross-sectional structure schematic diagram of the folding frame in the embodiment of the utility model; Figure 3 The enlarged structure schematic diagram of part A in the embodiment of the utility model; Figure 5 The enlarged structure schematic diagram of part B in the embodiment of the utility model; Figure 1A partial structure schematic view of the folding frame in the middle folding state (the frame is in the middle state); Figure 6 For Figure 5 A partial structure schematic view of the folding frame in the middle folding state (the frame is in the middle state); Figure 7 For Figure 6 A partial structure schematic view of the folding frame in the middle folding state (the frame is in the middle state); Figure 8 For Figure 1 A partial structure schematic view of the folding frame in the middle folding state (the frame is in the middle state); Figure 9 For Figure 8 A partial structure schematic view of the folding frame in the middle folding state (the frame is in the middle state); Figure 10 For Figure 9 A partial structure schematic view of the folding frame in the middle folding state (the frame is in the middle state);

[0063] According to Figure 1 , Figure 2 , Figure 5 and Figure 8 The state change process of the folding frame 100 provided by the utility model can be clearly understood. In order to more clearly understand the connecting relationship and position relationship of various components, please refer to Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 9 and Figure 10 In an embodiment of the utility model, the folding frame 100 includes a frame 1, a rolling part 2 and a transmission mechanism 3, the frame 1 includes a plurality of columns 11, the plurality of columns 11 can be arranged close to each other and away from each other, so that the frame 1 has a folding state and an unfolding state, at least one column 11 is a first column 1111; the rolling part 2 is arranged at the bottom of the first column 1111, at least one of the rolling part 2 and the bottom of the first column 1111 is arranged as a movable part, so that the rolling part 2 and the bottom of the first column 1111 have a relative up-down movement stroke, in the up-down movement stroke, the rolling part 2 has a protruding position protruding downward relative to the bottom of the first column 1111 and a retracted position retracting upward relative to the bottom of the first column 1111; the transmission mechanism 3 is arranged between the frame 1 and the movable part, so that when the frame 1 is converted from the unfolding state to the folding state, the rolling part 2 can be moved to the protruding position.

[0064] It should be noted that the frame 1 comprises a plurality of columns 11, which are arranged along the circumference of the frame 1 and extend along the up-down direction. When the plurality of columns 11 are away from each other, a containing space can be formed therebetween, which can be used for a child or an infant to lie down or for sundries to be placed. When the plurality of columns 11 are close to each other, the folding frame 100 can be converted to the folded state, thereby facilitating storage. The number of columns 11 can be various, for example, when four columns 11 are provided, the frame 1 is in a square structure in the top view, and when more columns 11 are provided, the frame 1 is in a polygonal structure in the top view. The number of columns 11 included in the frame 1 is not limited in the embodiment. “At least one column 11 is provided as a first column 1111” includes two columns 11 provided as the first column 1111, three columns 11 provided as the first column 1111, or even all columns 11 provided as the first column 1111. The frame 1 usually further comprises a connecting structure connecting the plurality of columns 11, but this is not limited in the embodiment.

[0065] The downward and upward movement of the rolling part 2 relative to the bottom of the first column 1111 is relative, that is, the bottom of the first column 1111 can be fixed, and the rolling part 2 can be arranged to be movable up and down. The rolling part 2 can protrude downward beyond the bottom of the first column 1111 in the downward movement stroke to reach a protruding position, and can retract upward into the bottom of the first column 1111 in the upward movement stroke to reach a retracted position. Alternatively, the bottom of the first column 1111 can be movable, and the rolling part 2 can be fixed relative to the whole first column 1111. The bottom of the first column 1111 can protrude downward in the downward movement stroke to shield the rolling part 2 to reach a protruding position, and can retract upward in the upward movement stroke to expose the rolling part 2 to reach a retracted position. The specific structure of the rolling part 2 is not limited in the embodiment, which can be a ball as shown in Figure 2 or a universal roller.

[0066] The transmission mechanism 3 is arranged between the frame 1 and the movable part (which includes one of the rolling part 2 and the bottom of the first column 1111) to transmit and connect the movements of the two together. When the frame 1 is converted from the unfolded state to the folded state, the rolling part can move to the protruding position. It can be understood that there must be relative movement between the structures during the unfolding and folding of the frame 1, which provides the power source for the movement of the movable part. The specific structure of the transmission mechanism 3 is not limited in the embodiment, as long as it can associate the movement of the frame 1 with the movement of the rolling part 2.

[0067] In the above embodiment, the transmission mechanism 3 drives the rolling part 2 to the protruding position when the frame 1 is converted from the unfolded state to the folded state. It can be understood that the rolling part 2 is immediately protruded outward relative to the bottom of the first column 1111 when the frame 1 is unfolded, and the rolling part 2 is completely in the protruding position when the frame 1 is folded. In this way, the retracted position of the rolling part 2 corresponds to the unfolded state of the frame 1, and the protruding position of the rolling part 2 corresponds to the folded state of the frame 1. Alternatively, the rolling part 2 is retracted from the retracted position and gradually reaches the protruding position during the conversion of the frame 1 from the unfolded state to the folded state. In this way, the rolling part 2 is only in the retracted position and the protruding position corresponding to part of the conversion range of the frame 1 between the unfolded state and the folded state.

[0068] The technical scheme provided by the utility model realizes the switching of the frame 1 between the folded state and the unfolded state, and the bottom of the first column 1111 in the plurality of columns 11 is provided with the rolling part 2. Meanwhile, the rolling part 2 can protrude downward relative to the bottom of the column 11 to the protruding position during the conversion of the frame 1 from the unfolded state to the folded state. At this position, the rolling part 2 can contact the ground, so that the sliding friction between the first column 1111 and the ground is changed into the rolling friction between the rolling part 2 and the ground. Thus, the frictional resistance of the ground to the first column 1111 is reduced, and the difficulty of the user in unfolding and folding the children's appliance is reduced.

[0069] Furthermore, in some embodiments, the rolling part 2 is in the retracted position when the frame 1 is in the unfolded state. Since the rolling part 2 can be in the retracted position when the frame 1 is in the unfolded state, the first column 1111 contacts the ground through the bottom, so that the frictional resistance of the frame 1 to the ground is increased, and the relative movement of the folding frame 100 to the ground is prevented, and the safety factor of the children's appliance is improved.

[0070] In combination with the above embodiment, if the bottom of the first column 1111 is set as a movable part, the structural rigidity of the first column 1111 is undoubtedly damaged, and the supporting strength of the first column 1111 can be reduced, which is not conducive to the safety of the folding frame 100. Therefore, in some embodiments, the rolling part 2 is movably installed on the bottom of the first column 1111, as shown in Figure 2 and Figure 5 .

[0071] It should be noted that the rolling part 2 is movably set, which means that the rolling part 2 is a movable part, and the bottom of the first column 1111 is a fixed part relative to the whole first column 1111.

[0072] According to the technical scheme, the rolling part 2 is movably arranged at the bottom of the first column 1111, so that the bottom of the first column 1111 is fixed relative to the column 11 as a whole, and thus the bottom of the first column 1111 can stably contact the ground for a long time after the rolling part 2 is moved to the retracted position, which is beneficial to maintaining the support strength of the first column 1111.

[0073] In combination with the connection structure of the column 11 mentioned in the above embodiment, further, please continue to refer to Figure 1 In some embodiments, the frame 1 further comprises an upper rail assembly 12 arranged between two adjacent columns 11, and the two adjacent columns 11 comprise a first column 1111, the upper rail assembly 12 comprises a plurality of first connecting rods 121, the plurality of first connecting rods 121 are rotatably connected two by two, and the first connecting rods 121 at both ends are rotatably connected to the columns 11, so that when the two columns 11 are close to each other, the plurality of first connecting rods 121 can be folded by rotation; the transmission mechanism 3 is at least transmissionally connected to the rolling part 2 and one of the first connecting rods 121.

[0074] It should be noted that the extension direction of the plurality of columns 11 is generally upward and downward, and thus the main function of the column 11 is to support and does not have the function of a fence, and the upper rail assembly 12 arranged between the two adjacent columns 11 can separate the containing space of the fence from the external space, i.e., has the function of a fence.

[0075] The number of the first connecting rods 121 can be two, three, four or more, and the "plurality of first connecting rods 121 are rotatably connected two by two" means that the two adjacent first connecting rods 121 are rotatably connected between the first and the last, so that the upper rail assembly 12 as a whole is in a strip shape, and the free ends of the two first connecting rods 121 at the ends are rotatably connected to the corresponding columns 11; it is worth mentioning that in the present embodiment, the rotation axes of the plurality of first connecting rods 121 are in the same direction as the rotation axes of the first connecting rods 121 and the corresponding columns 11, so that the plurality of first connecting rods 121 can rotate relatively with the columns 11 moving away from or close to each other.

[0076] The transmission mechanism 3 is used to transmissionally connect one of the first connecting rods 121 and the rolling part 2, and the purpose is to link the relative rotation of the two adjacent first connecting rods 121 and the lifting movement of the rolling part 2, so that the rolling part 2 can make corresponding movements when the frame 1 is unfolded or folded (when the two adjacent first connecting rods 121 are spread apart or folded relative to each other); the specific structure of the transmission mechanism 3 is not limited in the present embodiment, as long as it can associate the relative rotation of the two adjacent first connecting rods 121 and the lifting movement of the rolling part 2.

[0077] According to the technical scheme, the upper surrounding rod assembly 12 is arranged between the two adjacent columns 11, which can play the role of fence and link the movement of the columns 11 away from or close to each other. In addition, the upper surrounding rod assembly 12 includes a plurality of first connecting rods 121 connected in pairs, which can be folded by rotating during the movement of the two adjacent columns 11 close to each other. The transmission mechanism 3 is connected between one of the first connecting rods 121 and the rolling part 2, which can drive the first connecting rod 121 to open and fold under the activity of the rolling part 2, thereby promoting the corresponding two adjacent columns 11 to move away from or close to each other. The rolling part 2 can also be driven to move under the activity of the first connecting rod 121 opening and folding.

[0078] The rotating connection between the two adjacent first connecting rods 121 includes direct rotating connection and indirect rotating connection. The direct rotating connection is easy to understand, and the indirect rotating connection includes connecting the two first connecting rods 121 through a hinge seat 122, which is similar to the connecting joint of the two first connecting rods 121, for example, please refer to Figure 2 The two first connecting rods 121 are connected together through the hinge seat 122 therebetween.

[0079] Further, in some embodiments, for one upper surrounding rod assembly 12, two first connecting rods 121 are provided.

[0080] It should be noted that one upper surrounding rod assembly 12 includes two first connecting rods 121, which means that the two first connecting rods 121 are both at the end and are respectively connected to the corresponding column 11, and one of the two first connecting rods 121 is connected to the rolling part 2 through the transmission mechanism 3.

[0081] According to the technical scheme, the upper surrounding rod assembly 12 is arranged to be composed of two first connecting rods 121, which can reduce the degree of freedom of the upper surrounding rod assembly 12 without affecting the relative movement of the two adjacent columns 11. The reduction of the degree of freedom also means the improvement of the reliability of the upper surrounding rod assembly 12. It can be understood that when the fence is in the unfolded state, the connecting points between the two first connecting rods 121 are fixed by rotation, which can limit the relative movement of the columns 11 and help to maintain the stability of the fence.

[0082] Please continue to refer to Figure 2 , Figure 5 and Figure 8In some embodiments, the transmission mechanism 3 comprises a transmission member 31 movably arranged in the first stand 1111 in the up-down direction, and a first linkage rod 32, one end of which is rotatably connected to the transmission member 31, and the other end of which is rotatably connected to the first linkage rod 121 connected to the first stand 1111; wherein the rolling part 2 is arranged at the bottom end of the transmission member 31.

[0083] It should be noted that, since the first linkage rod 121 and the rolling part 2 are both associated with the first stand 1111, the power transmission between the first linkage rod 121 and the rolling part 2 inevitably needs to pass through the first stand 1111, wherein the transmission member 31 is an intermediate power transmission component, and the present embodiment only limits the movement direction of the transmission member 31 on the first stand 1111, and does not limit the specific structure of the transmission member 31; it can be understood that the orientations of the two ends of the first linkage rod 32, the connecting part, the rotation axis of the corresponding first linkage rod 121, and the rotation axes of the plurality of first linkage rods 121 are the same.

[0084] According to the above technical solution, when the transmission member 31 drives the rolling part 2 to move upward, the corresponding first linkage rod 121 can be spread open under the driving connection of the first linkage rod 32, so that the first linkage rod 121 can adapt to the unfolding movement of the surrounding frame, and ensure that the unfolding of the surrounding frame is carried out smoothly; moreover, the power is transmitted between the rolling part 2 and the first linkage rod 121 in the form of the combination of the moving part and the first linkage rod 32, which is adapted to the basic structure of the surrounding frame, and has the advantages of simple structure, stable and reliable, and high power transmission efficiency.

[0085] Further, in some embodiments, the first stand 1111 is formed with an activity cavity penetrating downward, and the side wall of the first stand 1111 is formed with a first displacement hole 11a penetrating to the activity cavity and extending in the up-down direction; the transmission member 31 comprises a transmission core part 311 arranged in the activity cavity, and a first connecting part 312 connected to the transmission core part 311 through the first displacement hole 11a, and the first connecting part 312 is connected to the first linkage rod 32; wherein the rolling part 2 is arranged at the bottom end of the transmission core part 311.

[0086] It should be noted that the activity cavity in the stand 11 is used for accommodating and moving the transmission core part 311 of the transmission member 31, and the downward penetration of the activity cavity is used for providing space for the rolling part 2 arranged at the bottom of the transmission core part 311; the first displacement hole 11a is used for connecting the transmission core part 311 in the activity cavity and the first connecting part 312 outside the first stand 1111.

[0087] According to the technical solution, the transmission core part 311 of the transmission member 31 can be arranged in the movable cavity, and the transmission core part 311 can be moved under the driving of the first connecting part 312 outside the first stand column 1111, and the transmission core part 311 is arranged in the movable cavity, which can make full use of the installation space of the movable cavity, and the movable cavity can also guide the transmission core part 311, greatly reducing the complexity of the connecting part between the transmission member 31 and the first stand column 1111, and reducing the influence of external structures on the movement of the transmission member 31; at the same time, the movable cavity is beneficial to reducing the overall weight of the first stand column 1111, and is beneficial to the lightweight of the folding frame 100; from the appearance, the transmission core part 311 arranged in the movable cavity of the first stand column 1111 is more simple in vision.

[0088] The above embodiment does not limit the specific structure of the first connecting part 312, please refer to Figure 2 、 Figure 5 and Figure 8 In some embodiments, the first connecting part 312 includes a first connecting sleeve 3121 arranged on the first stand column 1111, and the first linkage rod 32 is connected to the first connecting sleeve 3121.

[0089] It should be noted that the transmission core part 311 needs to be installed for the rolling part 2, and also needs to be driven by the first linkage rod 32 to move the corresponding first connecting rod 121, the rolling part 2 is at the bottom of the first stand column 1111, and the first connecting rod 121 is usually at the top of the first stand column 1111, therefore, the length of the transmission core part 311 is generally set to be longer.

[0090] According to the technical solution, the connecting part is arranged outside the first stand column 1111 through the first connecting sleeve 3121, the contact area between the first connecting sleeve 3121 and the first stand column 1111 is small, the first connecting sleeve 3121 can assist the centering of the transmission core part 311, so that the transmission core part 311 remains coaxial with the first stand column 1111, reduces the contact between the transmission core part 311 and the inner wall of the movable cavity, and reduces the movement resistance of the transmission member 31.

[0091] Please refer to Figure 1 In some embodiments, the frame 1 further includes a lower connecting rod assembly 13, the lower connecting rod assembly 13 includes a plurality of second connecting rods 131 rotationally connected between two stand columns 11 and rotationally connected with each other, and the two stand columns 11 include the first stand column 1111; the transmission mechanism 3 is at least transmissionally connected with the rolling part 2 and one of the second connecting rods 131.

[0092] It should be noted that the setting position of the lower link assembly 13 is generally close to the bottom of the column 11, and the extension direction of the plurality of columns 11 is generally the up-down direction, so the main function of the column 11 is to support and does not have the function of bottoming, and the lower link assembly 13 is arranged close to the bottom of the column 11, which plays a role in bottoming on the one hand, and can also drive the plurality of columns 11 to move close to or away from each other on the other hand.

[0093] Among them, the positional relationship of the two columns 11 can be adjacent in the circumferential direction of the frame or opposite in the radial direction of the frame. Regardless of which two columns 11, there are a plurality of second links 131 connected in rotation between them, but the rotation forms of the plurality of second links 131 between the two columns 11 in different relative positions are different. For example, in one of the cases, please refer to Figure 1 , Figure 1 four columns 11 and four second links 131 are included, one end of the four second links 131 corresponds to the four columns 11 respectively, and the other end is simultaneously connected in rotation to a base 132. Under the up-down movement of the base 132, the four second links 131 can drive the four columns 11 to move close to or away from each other synchronously. In this case, the second links 131 between the two circumferentially adjacent columns 11 have a certain included angle, and the two second links 131 between the two radially opposite columns 11 are in the same extension direction. Similarly, with the four columns 11, in another case, the two circumferentially adjacent columns 11 can also be connected in rotation by two second links 131 at the head and tail. The connection between the two second links 131 forms a hinge point. In this way, four hinge points are formed between the four columns 11, and the four hinge points are connected to the middle base 132 by the additional four second links 131. Under the up-down movement of the base 132, the four columns 11 can also be driven to move close to or away from each other synchronously. In this case, the second links 131 between the two circumferentially adjacent columns 11 are in the same direction, and the plurality of second links 131 between the two radially opposite columns 11 have a certain included angle.

[0094] Among them, the transmission mechanism 3 is used to drive the corresponding second link 131 and the rolling part 2, and the purpose is to link the movement of the second link 131 with the movement of the rolling part 2, so that when the user drives the frame 1 to unfold or fold through the lower link assembly 13, the rolling part 2 can make corresponding actions. The specific structure of the transmission mechanism 3 is not limited in this embodiment.

[0095] According to the above technical scheme, the lower link assembly 13 comprises a plurality of second links 131 arranged between the two upright columns 11, the actions of the plurality of upright columns 11 can be associated together through the plurality of second links 131, thereby playing a role of synchronously driving the plurality of upright columns 11 to approach or move away, and therefore, the lower link assembly 13 generally also acts as a point of external driving force; through the transmission mechanism 3, power can be efficiently transmitted from the second links 131 to the rolling part 2, and then through the transmission mechanism 3, power can be continuously transmitted from the rolling part 2 to the first links 121, thereby realizing the synchronous transmission connection of the first links 121, the rolling part 2 and the second links 131.

[0096] Specifically, referring to Figure 1 , the lower link assembly 13 comprises a base 132 and a plurality of second links 131, the base 132 is arranged between the plurality of upright columns 11 and is movable in the up-down direction, one end of each of the plurality of second links 131 is rotatably connected to the base 132, and the other end is rotatably connected to the corresponding upright column 11, by driving the base 132 to move up and down, the plurality of upright columns 11 can be synchronously approached or moved away under the driving of the plurality of second links 131. The lower link assembly 13 of this type has a simple structure and good driving effect, and the base 132 can be limited while playing a role of bearing, thereby ensuring the stability of the surrounding frame when it is in the unfolded state required for use.

[0097] Further, referring to Figure 3 , Figure 6 and Figure 9 , in some embodiments, the transmission mechanism 3 comprises a transmission member 31 and a second linkage rod 33, the transmission member 31 is movably arranged in the up-down direction at the first upright column 1111; one end of the second linkage rod 33 is rotatably connected to the transmission member 31, and the other end is rotatably connected to the second link 131 connected to the first upright column 1111; wherein the rolling part 2 is arranged at the bottom end of the transmission member 31.

[0098] It should be noted that since the second link 131 and the rolling part 2 are arranged in association with the first upright column 1111, the power transmission between the second link 131 and the rolling part 2 inevitably needs to pass through the first upright column 1111, wherein the transmission member 31 is an intermediate power transmission component, and the present embodiment only limits the movement direction of the transmission member 31 on the first upright column 1111, and does not limit the specific structure of the transmission member 31.

[0099] According to the technical scheme, when the lower link assembly 13 drives the plurality of upright columns 11 to move closer to each other through the plurality of second links 131, the second linkage 33 can drive the connecting portion of the transmission member 31 to move downward, thereby driving the rolling portion 2 to the protruding position, so as to reduce the frictional resistance when the plurality of upright columns 11 move closer to each other; when the lower link assembly 13 drives the plurality of upright columns 11 to move away from each other through the plurality of second links 131, the second linkage 33 can drive the connecting portion of the transmission member 31 to move upward, thereby driving the rolling portion 2 to the retracted position, so as to finally enable the bottom of the upright column 11 to contact the ground; in addition, the power is transmitted between the rolling portion 2 and the second link 131 in the form that the movable member is combined with the second linkage 33, which is adapted to the basic structure of the enclosure, and the structure is simple, stable and reliable, and the power transmission efficiency is high.

[0100] The above embodiment only limits the moving direction of the transmission portion on the first upright column 1111, and does not limit the setting position of the transmission portion in combination with the specific structure of the first upright column 1111. In view of this, please refer to Figure 8 In some embodiments, the first upright column 1111 is formed with a downwardly penetrating movable cavity, and the sidewall of the upright column 11 is formed with a second accommodating hole 11b penetrating to the movable cavity and extending along the up-down direction; the transmission member 31 comprises a transmission core portion 311 built in the movable cavity and a second connecting portion 313 connected to the transmission core portion 311 through the second accommodating hole 11b, and the second connecting portion 313 is connected to the second linkage 33; wherein the rolling portion 2 is arranged at the bottom end of the transmission core portion 311.

[0101] It should be noted that the movable cavity in the upright column 11 is used for accommodating and moving the transmission core portion 311 of the transmission member 31, and the downward penetration of the movable cavity is used for accommodating the rolling portion 2 arranged at the bottom of the transmission core portion 311; the first accommodating hole 11a is used for connecting the transmission core portion 311 in the movable cavity with the first connecting portion 312 outside the first upright column 1111.

[0102] According to the above technical scheme, by arranging the movable cavity and the first accommodating hole 11a, the transmission core portion 311 of the transmission member 31 can be arranged in the movable cavity, and the transmission core portion 311 can be moved under the drive of the first connecting portion 312 outside the first upright column 1111, and the purpose of hiding the transmission core portion 311 in the movable cavity is to make full use of the installation space of the movable cavity, and the movable cavity can also guide the transmission core portion 311, which greatly reduces the complexity of the connecting components between the transmission member 31 and the first upright column 1111, and reduces the degree of influence of the movement of the transmission member 31 by external structures; at the same time, the arrangement of the movable cavity is beneficial to reducing the overall weight of the first upright column 1111, and is beneficial to the lightweight of the folding frame 100; from the appearance, the transmission core portion 311 hidden in the movable cavity of the first upright column 1111 is more simple in vision.

[0103] The specific structure of the second connecting portion 313 is not limited in the above embodiments. In some embodiments, the second connecting portion 313 includes a second connecting sleeve 3131 sleeved on the first column 1111, and the second linkage rod 33 is connected to the second connecting sleeve 3131.

[0104] It should be noted that the transmission core 311 needs to be installed with the rolling part 2 and drive the rolling part 2 to move, and the moving stroke of the rolling part 2 is generally small as a whole, which also leads to a small moving stroke of the transmission core 311. Therefore, the transmission core 311 usually needs to be extended from a high position where it is easy to be connected with the second linkage rod 33 to the bottom of the first column 1111, and the length thereof is generally set to be relatively long.

[0105] According to the above technical solution, the connecting portion is sleeved on the first column 1111 through the second connecting sleeve 3131, and the contact area between the second connecting sleeve 3131 and the first column 1111 is small. The second connecting sleeve 3131 can play a role in assisting the centering of the transmission core 311, so that the transmission core 311 remains in a coaxial arrangement state with the first column 1111, reduces the contact between the transmission core 311 and the inner wall of the moving cavity, and reduces the moving resistance of the transmission member 31.

[0106] According to the above analysis of the embodiments, the second connecting sleeve 3131 needs to be connected to the transmission core 311 of the transmission member 31, and also needs to be connected to the second linkage rod 33, and also needs to be sleeved on the first column 1111. The usual assembly process is to first install the second connecting sleeve 3131 outside the first column 1111, and then connect the second connecting sleeve 3131 to the transmission core 311 inside the first column 1111 and to the second linkage rod 33. The assembly process is relatively complex. In view of this, in some embodiments, the second connecting sleeve 3131, the transmission core 311 and the second linkage rod 33 are connected together by a connecting pin shaft, which passes through the second accommodating hole 11b and is connected to the transmission core 311. In this way, only the connecting holes of the second connecting sleeve 3131, the transmission core 311 and the second linkage rod 33 need to be aligned, and then the connecting pin shaft can be inserted. The assembly process is relatively simple and has higher assembly efficiency. At the same time, the connecting pin shaft can be embedded in the transmission core 311, so that the connection between the second connecting sleeve 3131 and the second linkage rod 33 is not limited by the thickness of the second connecting sleeve 3131, and the connection is not firm.

[0107] In combination with the rotating connection of the first column 1111 and the corresponding second connecting rod 131, please refer to Figure 2 、 Figure 5 and Figure 8In some embodiments, the second connecting rod 131 connected with the first stand 1111 is arranged as a driving lever 1311, the driving lever 1311 has a rotating part 13111 and a driving end; the rotating part 13111 of the driving lever 1311 is rotationally connected with the first stand 1111, and the driving end is located on the side of the rotating part 13111 close to the first stand 1111 to rotate downward when the driving lever 1311 is folded; wherein the second linkage rod 33 is drivingly connected between the driving end and the transmission member 31.

[0108] It should be noted that the rotating part 13111 of the driving lever 1311 is used to connect the first stand 1111, and the driving end of the driving lever 1311 is closer to the first stand 1111, which can be understood as that the driving end is closer to the main body part of the first stand 1111 than the rotating part 13111, or can be understood as being closer to the transmission member 31; wherein the "driving end rotates downward when the driving lever 1311 is folded" is equivalent to the "driving end rotates upward when the driving lever 1311 is unfolded".

[0109] According to the above technical solution, the second connecting rod 131 connected with the first stand 1111 is arranged as a driving lever 1311, the driving lever 1311 in the process of driving multiple stands 11 to move close to or away from each other, the driving end thereof is connected with the transmission member 31 through the second linkage rod 33, so as to drive the transmission member 31 to move up and down, that is, to drive the rolling part 2 to switch between the retracted position and the protruding position; the specific distance between the driving end and the rotating part 13111 is shorter than the overall length of the driving lever 1311, so that a force-saving lever is formed, and the driving lever 1311 drives the transmission member 31 to move more labor-saving.

[0110] Further, in some embodiments, the bottom of the first stand 1111 extends laterally by at least one mounting plate 112;

[0111] The rotating part 13111 of the driving lever 1311 is rotationally mounted on the mounting plate 112, the mounting plate 112 is provided with a third clearance hole 112a corresponding to the driving end, the third clearance hole 112a extends along the circumference of the rotating part 13111; the second linkage rod 33 is connected with the driving end through the third clearance hole 112a.

[0112] According to the above technical solution, the driving lever 1311 is connected to the mounting plate 112, the third clearance hole 112a is arranged on the mounting plate 112, so that the second linkage rod 33 can be connected to the driving end of the driving lever 1311 through the third clearance hole 112a, thereby fully utilizing the mounting space on both sides of the mounting plate 112, so that the overall structure of the driving lever 1311, the second linkage rod 33 and the mounting plate 112 is compact and stable.

[0113] Specifically, please refer toFigure 2 The second linkage rods 33 and the third displacement holes 112a form a displacement linkage group in one-to-one correspondence. Two groups of displacement linkage groups are arranged on both sides of the driving end. In this way, through the driving of the driving end, the two second linkage rods 33 can provide symmetrical driving force for the corresponding two sides of the transmission member 31, which can improve the smoothness of the movement of the transmission member 31 on the first column 1111 and reduce the occurrence of jamming.

[0114] Specifically, in combination with the two displacement linkage groups, in some embodiments, the mounting plates 112 are arranged in opposition to each other, and the relative directions of the two mounting plates 112 are consistent with the relative directions of the two displacement linkage groups.

[0115] Please refer to Figure 11 and Figure 12 , the application provides a folding frame 100, in an embodiment of the application, the folding frame 100 includes a column 11, an upper rail assembly 12 arranged at the upper end of the column 11, a lower connecting rod assembly 13 arranged at the lower end of the column 11, a locking member 40 movably arranged on the upper rail assembly 12, and a transmission mechanism 3; the upper rail assembly 12 and the lower connecting rod assembly 13 both have an unfolded state and a folded state, the locking member 40 has a locking position and an unlocking position, the locking member 40 locks the upper rail assembly 12 in position when in the unfolded state at the locking position, and the locking member 40 releases the locking of the upper rail assembly 12 when in the unlocked position; the transmission mechanism 3 includes a transmission member 31 and a second transmission member 34, the transmission member 31 is movably arranged on the column 11, and the second transmission member 34 is movably arranged on the upper rail assembly 12; the transmission member 31 and the second transmission member 34 abut and transmit power, and the second transmission member 34 is configured to drive the locking member 40 to move; when the lower connecting rod assembly 13 is folded, the lower connecting rod assembly 13 can drive the column 11 to move towards the lower connecting rod assembly 13, and drive the transmission member 31 to move relative to the column 11, so that the transmission member 31 abuts and drives the second transmission member 34 to drive the locking member 40 to move to the unlocked position.

[0116] When the folding frame 100 is in a normal use state, the column 11 can be arranged in an up-down direction. In a cross section perpendicular to the extension direction of the column 11, the cross section of the column 11 can be circular, of course, it can also be square or rectangular, etc. In addition, the number of columns 11 can be multiple, and the multiple columns 11 are arranged in a horizontal direction. Moreover, the lines connecting the adjacent two columns 11 are sequentially connected in a closed loop. For example, when the number of columns 11 is four, the lines connecting the adjacent two columns 11 are sequentially connected in a square or a rectangle.

[0117] The upper surrounding rod assembly 12 is arranged at the upper end of the stand column 11, can be arranged in a horizontal direction or slightly inclined (for example, an angle less than or equal to 10° is formed with the horizontal direction), and can be located between two adjacent stand columns 11. The number of the upper surrounding rod assembly 12 can correspond to the number of the stand column 11. For example, when the stand column 11 is provided with four, the number of the upper surrounding rod assembly 12 can also be four, and each upper surrounding rod assembly 12 is located between two adjacent stand columns 11. In addition, in order to facilitate the upper surrounding rod assembly 12 to have an unfolded state and a folded state, each upper surrounding rod assembly 12 can include two first connecting rods 121, and the proximal end of the two first connecting rods 121 is rotatably connected, and the distal end of the two first connecting rods 121 is rotatably connected to the corresponding stand column 11. At this time, in the unfolded state, the two first connecting rods 121 can form a straight angle or an angle close to a straight angle. In the folded state, the two first connecting rods 121 can form an acute angle. In addition, when the upper surrounding rod assembly 12 is folded, the proximal end of the two first connecting rods 121 can be folded downward, so that the proximal end of the two first connecting rods 121 in the upper surrounding rod assembly 12 can be folded under the action of gravity, thereby improving the convenience of folding the folding frame 100. In addition, the proximal end of the two first connecting rods 121 can be directly rotatably connected. Of course, a hinge seat 122 can also be arranged between the proximal end of the two first connecting rods 121, and the proximal end of the two first connecting rods 121 is rotatably connected to the hinge seat 122, thereby indirectly rotatably connecting the proximal end of the two first connecting rods 121. At this time, the hinge seat 122 facilitates the connection position to realize the rotatable connection between the two rod bodies. In addition, the first connecting rod 121 and the stand column 11 can also be directly rotatably connected. Of course, an angle connecting piece 60 can also be arranged between the stand column 11 and the two first connecting rods 121 adjacent to the stand column 11, and the stand column 11 and the two first connecting rods 121 adjacent to the stand column 11 are rotatably connected to the angle connecting piece 60, thereby indirectly rotatably connecting the first connecting rod 121 and the stand column 11. At this time, the angle connecting piece 60 facilitates the connection position to realize the rotatable connection between the stand column 11 and the two first connecting rods 121 adjacent to the stand column 11. In addition, it should be noted that the rotatable connection proposed in the present application can be that one of the connected objects is provided with a plug shaft, and the other is provided with a plug hole, and the plug shaft is inserted into the plug hole to realize the rotatable connection between the connected objects. Of course, the connected objects can also be provided with a through hole, and the rotatable connection between the connected objects is realized by directly inserting a plug shaft. That is, the present application does not limit the way of rotatable connection. In addition, in the cross section perpendicular to the extension direction of the first connecting rod 121, the cross section of the first connecting rod 121 can be circular, of course, it can also be square or rectangular, etc.

[0118] The lower link assembly 13 is arranged at the lower end of the upright 11, can be arranged in a horizontal direction or slightly inclined (for example, the included angle with the horizontal direction is less than or equal to 10°), and can be located between two diagonally arranged uprights 11. The number of lower link assemblies 13 can be half of the number of uprights 11. For example, when the upright 11 is provided with four, the number of lower link assemblies 13 can be two, and each lower link assembly 13 is located between two diagonally arranged uprights 11, forming an X shape. In addition, in order to facilitate the lower link assembly 13 to have an unfolded state and a folded state, each lower link assembly 13 can include two second links 131, and the proximal end of the two second links 131 is rotatably connected, and the distal end is rotatably connected to the corresponding upright 11 or the second connecting sleeve 3131 or the mounting plate 112 as described below. At this time, in the unfolded state, the two second links 131 can form a straight angle or an angle close to a straight angle. In the folded state, the two second links 131 can form an acute angle. In addition, when the lower link assembly 13 is folded, the proximal end of the two second links 131 can be folded upward. In addition, in order to facilitate the rotation connection of the two second links 131 in the lower link assembly 13, a base 132 can be arranged between the two second links 131, so that the connection position is facilitated by the base 132 to facilitate the rotation installation of the second link 131. Especially when the lower link assembly 13 is located between two diagonally arranged uprights 11, the rotation connection of the four second links 131 in the two lower link assemblies 13 can be realized by one base 132, so as to simplify the number of parts and simplify the structure, and the two lower link assemblies 13 can also be conveniently arranged at the same height. In addition, when no locking structure is arranged between the lower link assembly 13 and the upright 11 to lock the two in the unfolded state, the base 132 can also drive the lower link assembly 13 to unfold and support the upright 11 by the gravity of the base 132. Of course, the locking structure including a resilient bead can also be arranged between the lower link assembly 13 and the upright 11. The resilient bead can be arranged in one of the lower link assembly 13 and the upright 11, and can be elastically extended and inserted into the other of the lower link assembly 13 and the upright 11, so as to lock the lower link assembly 13 and the upright 11 in the unfolded state. When the base 132 is lifted, the resilient bead can be driven to contract to unlock the lower link assembly 13 and the upright 11, so that the two can be folded together.

[0119] The locking member 40 is movably arranged on at least one first connecting rod 121 of the upper surrounding rod assembly 12 and has a locking position and an unlocking position when moving relative to the upper surrounding rod assembly 12. The locking manner of the locking member 40 to the two first connecting rods 121 in the unfolded state can be that the locking member 40 is movably arranged on one of the two first connecting rods 121, and when the two rod bodies are rotated to the unfolded state, the locking member 40 can be inserted into the other one of the two first connecting rods 121 to block the relative rotation of the two first connecting rods 121. Alternatively, the locking member 40 is movably arranged on one of the two first connecting rods 121, and the two first connecting rods 121 can be provided with meshing gears at the end close to each other. When the two rod bodies are rotated to the unfolded state, the locking member 40 can be inserted into the two adjacent teeth of the gear on the same first connecting rod 121 as the locking member 40 to limit the gear and block the relative rotation of the two first connecting rods 121. It can be seen that the locking manner of the locking member 40 to the upper surrounding rod assembly 12 in the unfolded state is not limited in the present application, as long as the locking member 40 can block the relative rotation of the two first connecting rods 121 in the upper surrounding rod assembly 12 when moving to the locking position, and the two first connecting rods 121 in the upper surrounding rod assembly 12 can rotate relative to each other when the locking member 40 moves to the unlocking position. In addition, the locking member 40 can be slidingly arranged on the upper surrounding rod assembly 12 or rotatably arranged on the upper surrounding rod assembly 12.

[0120] The transmission mechanism 3 can receive the drive of the lower link assembly 13 when rotating and folding through the transmission member 31, then abuts to drive the second transmission member 34, and further drives the locking member 40 to move from the locking position to the unlocking position through the second transmission member 34. Wherein, the transmission member 31 can be arranged on the outside of the stand 11, of course, it can also be arranged on the inside of the stand 11. In addition, when the lower link assembly 13 rotates and folds, the transmission member 31 can be driven to slide downward, of course, it can also be driven to slide upward. In addition, when the lower link assembly 13 rotates and folds, the lower link assembly 13 can drive the transmission member 31 by cooperating with the second connecting sleeve 3131 and the second linkage rod 33 as described below, of course, it can also abut to drive the transmission member 31, and the application does not limit the driving mode of the lower link assembly 13 to the transmission member 31. In addition, the second transmission member 34 can be arranged on the outside of the upper surrounding rod assembly 12, of course, it can also be arranged on the inside of the upper surrounding rod assembly 12. In addition, the locking member 40 can be connected with the second transmission member 34, so that when the second transmission member 34 is abutted and driven by the transmission member 31, the locking member 40 can move with the second transmission member 34. At this time, it can not only improve the stability of the second transmission member 34 driving the locking member 40, but also facilitate the installation and arrangement of the two, so as to improve the convenience of manufacturing the folding frame 100. Of course, the second transmission member 34 and the locking member 40 can also be arranged in abutting transmission cooperation. That is, the second transmission member 34 can abut and drive the locking member 40 when moving.

[0121] In the use process of the folding frame 100 of the technical scheme of the application, when the user drives the lower link assembly 13 of the folding frame 100 to rotate and fold, the stand 11 can be brought close to the lower link assembly 13. At the same time, since the folding frame 100 is provided with the transmission mechanism 3 including the abutting transmission cooperation transmission member 31 and the second transmission member 34, the lower link assembly 13 can also drive the transmission member 31 to move relative to the stand 11 during the rotating and folding process. At this time, the sliding transmission member 31 can abut and drive the second transmission member 34, and drive the locking member 40 to move to the unlocking position through the second transmission member 34, so as to release the limiting and locking of the upper surrounding rod assembly 12, so that the upper surrounding rod assembly 12 can rotate and fold accordingly. Therefore, the structure of the folding frame 100 in the present scheme realizes the unlocking of the upper surrounding rod assembly 12 during the rotating and folding process of the lower link assembly 13. At this time, it is not necessary to perform a relatively complicated step-by-step unlocking operation on the lower link assembly 13 and the upper surrounding rod assembly 12 of the folding frame 100, which simplifies the folding process of the folding frame 100, thereby facilitating the convenience of using the folding frame 100. Moreover, at this time, the transmission mechanism 3 transmits through the hard transmission member 31 on the stand 11 and the second transmission member 34 on the upper surrounding rod assembly 12, which can improve the stability of transmission, and further facilitate the stability and accuracy of unlocking the upper surrounding rod assembly 12.

[0122] In an embodiment of the present application, the transmission member 31 is provided with a recess 31111, a groove wall of the recess 31111 comprises the abutting surface 51, the second transmission member 34 is provided with a protruding column 523, the protruding column 523 is provided with a matching surface 524; when the second transmission member 34 is located at the locking position, the protruding column 523 is inserted into the recess 31111; when the lower link assembly 13 drives the transmission member 31 to move relative to the stand 11, the abutting surface 51 slides on the matching surface 524 to drive the second transmission member 34 to move out of the recess 31111 and drive the locking member 40 to move to the unlocking position.

[0123] In the embodiment, when the lower link assembly 13 rotates to fold, the transmission member 31 can be driven to move downward. At this time, the abutting surface 51 can abut and press the matching surface 524, and then drive the protruding column 523 to move away from the recess 31111, so as to realize the abutting driving of the transmission member 31 to the second transmission member 34. Wherein, the recess 31111 and the protruding column 523 are respectively arranged on the transmission member 31 and the second transmission member 34, so that when the folding frame 100 is in the unfolded state, the protruding column 523 and the recess 31111 can be inserted and matched to relatively stably limit the transmission member 31 and the second transmission member 34, thereby improving the stability of the transmission mechanism 3 and the stability of the folding frame 100. In addition, the abutting surface 51 and the matching surface 524 can be inclined surfaces, so as to improve the stability of the matching of the abutting surface 51 and the matching surface 524 and the stability of the pressing of the abutting surface 51 to the matching surface 524, thereby being beneficial to improving the stability of the movement of the second transmission member 34. In addition, in order to improve the compactness of the distribution of the transmission mechanism 3, when the second transmission member 34 is located at the locking position, the abutting surface 51 can abut and match with the matching surface 524. In addition, it should be noted that in other embodiments, the transmission member 31 can be provided with a protruding portion, and the protruding portion and the protruding column 523 can be obliquely abutted and matched or arc abutted and matched.

[0124] In an embodiment of the present application, the transmission mechanism 3 further comprises a stop seat 53 and an elastic member 54, the stop seat 53 is arranged on the upper surrounding rod assembly 12, and the elastic member 54 is arranged between the second transmission member 34 and the stop seat 53.

[0125] In the embodiment, one end of the elastic member 54 can abut against the second transmission member 34, and the stop seat 53 can abut against the other end of the elastic member 54. In this way, when the second transmission member 34 drives the locking member 40 to move to the unlocking position, the elastic member 54 can be compressed to generate an elastic restoring force, and then the second transmission member 34 can drive the locking member 40 to move to the locking position. The elastic member 54 can be a spring. In addition, when the folding frame 100 is in the unfolded state, the elastic member 54 can have a pre-compressed state, so that the convex column 523 introduced above can be stably inserted into the groove 31111, and the second transmission member 34 in the unfolded state of the folding frame 100 can be locked. Of course, since the locking member 40 can be connected to the second transmission member 34, it can also be said that the locking member 40 in the locking position is locked, so that the stability of the locking member 40 in the locking position is improved, and the stability of the folding frame 100 in the unfolded state is improved. Of course, when the folding frame 100 is in the unfolded state, the elastic member 54 can also not have a pre-compressed state. At this time, the second transmission member 34 can be clamped and locked by the elastic beads and the upper surrounding rod assembly 12 introduced above, and then the second transmission member 34 in the unfolded state of the folding frame 100 can be locked. In addition, it should be noted that in other embodiments, the elastic member 54 can also be a spring sheet or the like.

[0126] In an embodiment of the present application, the transmission member 31 includes a transmission core 311 and an upper transmission end 3111, the transmission core 311 is arranged to extend along the extension direction of the stand 11, and the upper transmission end 3111 is connected to the upper end of the transmission core 311, and the upper transmission end 3111 is provided with a groove 31111; the second transmission member 34 includes a second connecting rod 341 and a limiting seat 522, the second connecting rod 341 is arranged to extend along the extension direction of the upper surrounding rod assembly 12, and the limiting seat 522 is connected to one end of the second connecting rod 341 close to the upper transmission end 3111, and the limiting seat 522 is provided with a convex column 523, and the locking member 40 is connected to the other end of the second connecting rod 341 away from the limiting seat 522.

[0127] In the embodiment, the transmission member 31 is provided with the transmission core 311 and the upper transmission end 3111, and the second transmission member 34 is provided with the second connecting rod 341 and the limiting seat 522, so that the setting position is facilitated by the upper transmission end 3111 and the limiting seat 522, and the recess 31111 and the convex column 523 structure are set. The transmission core 311 and the second connecting rod 341 can extend the distance, so as to realize the transmission cooperation between the transmission member 31 and the lower connecting rod assembly 13 at the bottom of the folding frame 100, and the connection between the second transmission member 34 and the locking member 40 at the middle of the upper surrounding rod assembly 12. When the lower connecting rod assembly 13 rotates and folds, the lower end of the transmission core 311 can be driven. In addition, it should be noted that the transmission member 31 can only include the transmission core 311, and the second transmission member 34 can only include the second connecting rod 341. At this time, the recess 31111 and the convex column 523 are respectively arranged on the transmission core 311 and the second connecting rod 341.

[0128] For reference Figure 12 In an embodiment of the present application, the stand column 11 is provided with an active cavity and a passing hole 11c communicating with the active cavity, the upper surrounding rod assembly 12 is provided with a second channel 1211 penetrating through the upper surrounding rod assembly 12 close to one end of the stand column 11, the transmission core 311 and the upper transmission end 3111 are arranged in the active cavity, the limiting seat 522, the second connecting rod 341 and the locking member 40 are arranged in the second channel 1211, when the second transmission member 34 is located at the locking position, the convex column 523 extends from one end of the second channel 1211 close to the stand column 11, and is inserted into the recess 31111 through the passing hole 11c.

[0129] The utility model also proposes a child appliance, the child appliance includes folding frame 100, the specific structure of folding frame 100 refers to the above-mentioned embodiment, because the child appliance adopts all the technical schemes of the above-mentioned all embodiments, therefore at least has all the beneficial effects brought by the technical scheme of the above-mentioned embodiment, does not repeat here one by one. Among them, the folding frame 100 includes frame 1, rolling part 2 and transmission mechanism 3, frame 1 includes a plurality of stand 11, a plurality of stand 11 can be close to each other and away from each other to make frame 1 have folding state and unfolded state, at least one stand 11 is first stand 1111;Rolling part 2 is arranged at the bottom of first stand 1111, and at least one of rolling part 2 and the bottom of first stand 1111 is set as a movable element, so that the bottom of rolling part 2 and first stand 1111 has the relative up-down activity stroke, in the up-down activity stroke, rolling part 2 has the protruding position of protruding downwards relative to the bottom of first stand 1111 and the retraction position of retracting upwards relative to the bottom of first stand 1111;Transmission mechanism 3 is transmission connected between frame 1 and movable element, so that when frame 1 is in unfolded state, rolling part 2 is in retraction position, and when frame 1 is converted between unfolded state and folding state, rolling part 2 can be moved to protruding position. The main use object of the child appliance includes children and infants, and in some embodiments, the child appliance includes but is not limited to a crib.

[0130] The above-mentioned is only the exemplary implementation of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by the utility model specification and the attached drawings under the technical concept of the utility model, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A foldable frame, characterized in that, The frame comprises a plurality of columns capable of being arranged close to and away from each other, so that the frame has a folded state and an unfolded state, at least one of the columns being a first column; a rolling part arranged at the bottom of the first column, at least one of the rolling part and the bottom of the first column being arranged as a movable part, so that the rolling part and the bottom of the first column have a relative up-down movement range, in which the rolling part has a protruding position protruding downward relative to the bottom of the first column, and a retracted position retracted upward relative to the bottom of the first column; and a transmission mechanism arranged between the frame and the movable part, so that when the frame is converted from the unfolded state to the folded state, the transmission mechanism drives the rolling part to move to the protruding position. The rolling part is movably mounted on the bottom of the first column.

2. The foldable frame of claim 1, wherein, The frame further comprises an upper surrounding rod assembly arranged between two adjacent columns, and the two adjacent columns comprise the first column, the upper surrounding rod assembly comprises a plurality of first connecting rods, the plurality of first connecting rods are rotatably connected two by two, and the first connecting rods at both ends are rotatably connected to the columns, so that when the two columns are close to each other, the plurality of first connecting rods can be folded by rotation; 3. The foldable frame of claim 2, wherein, The transmission mechanism is at least in transmission connection with the rolling part and one of the first connecting rods; Corresponding to one of the upper surrounding rod assemblies, the first connecting rods are provided in two. The transmission mechanism comprises:

4. The foldable frame of claim 3, wherein, a transmission part movably arranged in the first column in the up-down direction; and a first linkage rod having one end rotatably connected to the transmission part and the other end rotatably connected to the first connecting rod connected to the first column; The rolling part is arranged at the bottom end of the transmission part. The first column has a downwardly extending movable cavity, and the side wall of the first column has a first clearance hole extending to the movable cavity and extending in the up-down direction; 5. The foldable frame of claim 4, wherein, The transmission part comprises a transmission core part arranged in the movable cavity and a first connecting part connected to the transmission core part through the first clearance hole, and the first connecting part is connected to the first linkage rod; The rolling part is arranged at the bottom end of the transmission core part; The first connecting part comprises a first connecting sleeve sleeved on the first column; The first linkage rod is connected to the first connecting sleeve. The frame further comprises a lower connecting rod assembly, the lower connecting rod assembly comprises a plurality of second connecting rods rotatably connected between two columns, and the two columns comprise the first column; 6. The foldable frame of claim 2, wherein, The transmission mechanism is at least in transmission connection with the rolling part and one of the second connecting rods. The transmission mechanism comprises:

7. The foldable frame of claim 6, wherein, a transmission part movably arranged in the first column in the up-down direction; and a second linkage rod having one end rotatably connected to the transmission part and the other end rotatably connected to the second connecting rod connected to the first column; The rolling part is arranged at the bottom end of the transmission part. ​ 8. The foldable frame of claim 7, wherein, The first stand column is internally formed with a downwardly penetrating movable cavity, and a second accommodating hole penetrating to the movable cavity and extending along the up-down direction is formed in the side wall of the stand column; The transmission member comprises a transmission core portion internally arranged in the movable cavity, and a second connecting portion connected to the transmission core portion through the second accommodating hole, and the second connecting portion is connected to the second linkage rod; The rolling portion is arranged at the bottom end of the transmission core portion; The second connecting portion comprises a second connecting sleeve sleeved on the first stand column; The second linkage rod is connected to the second connecting sleeve.

9. The foldable frame of claim 7, wherein, The second linkage rod connected to the first stand column is arranged as a driving lever, and the driving lever has a rotating portion and a driving end; The rotating portion of the driving lever is rotationally connected to the first stand column, and the driving end is located at the side of the rotating portion close to the first stand column, so as to be downwardly rotated when the driving lever is folded; The second linkage rod is transmissionally connected between the driving end and the transmission member; At least one mounting plate extends laterally from the bottom of the first stand column; The rotating portion of the driving lever is rotationally mounted on the mounting plate, and a third accommodating hole corresponding to the driving end is arranged on the mounting plate and extending along the circumferential direction of the rotating portion; The second linkage rod is connected to the driving end through the third accommodating hole.

10. A child's implement, characterised in that, The child appliance comprises a child bed.

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