Folding frame and appliance for children

Abstract

The invention 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 invention relates to the technical field of children's appliances, in particular to a folding frame and a children's appliance. Background Art

[0002] Existing children's beds usually have 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 uprights of the frame move away from each other and touch the ground. The friction resistance between the uprights and the ground hinders the movement of the uprights, making it more difficult for the user to fold the children's bed. Summary of the invention

[0003] The main purpose of the present invention is to provide a folding frame and a child's appliance, which is intended to alleviate the difficulty of users when folding the frame of a child's bed.

[0004] To achieve the above object, the folding frame proposed by the present invention comprises:

[0005] A frame, comprising a plurality of columns, wherein the plurality of columns can be arranged close to and far 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 portion, arranged at the bottom of the first column, wherein at least one of the rolling portion and the bottom of the first column is arranged as a movable member, so that the rolling portion and the bottom of the first column have a relative vertical movable stroke, and in the vertical movable stroke, the rolling portion has a protruding position protruding downward relative to the bottom of the first column, and a retracted position retracting upward relative to the bottom of the first column; and,

[0007] The transmission mechanism is arranged between the frame and the movable member, 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 one embodiment, the rolling portion is mounted on the bottom of the first column so as to be movable up and down.

[0009] In one embodiment, the frame further comprises an upper enclosure rod assembly disposed between two adjacent upright posts, and the two adjacent upright posts comprise the first upright post, the upper enclosure rod assembly comprises a plurality of first connecting rods, the plurality of first connecting rods are rotatably connected in pairs, and the first connecting rods at both ends are correspondingly rotatably connected to the upright posts, so that when the two upright posts are close to each other, the plurality of first connecting rods can be rotated and folded;

[0010] The transmission mechanism at least transmits and connects the rolling portion and one of the first connecting rods;

[0011] Corresponding to one upper enclosure rod assembly, two first connecting rods are provided.

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

[0013] A transmission member is movably disposed on the first column in an up-and-down direction; and

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

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

[0016] In one embodiment, a downwardly penetrating active cavity is formed in the first column, and a first clearance hole penetrating into the active cavity and extending in the up-down direction is formed on the side wall of the first column;

[0017] The transmission member comprises a transmission core built into the movable cavity, and a first connection portion connected to the transmission core through the first clearance hole, wherein the first connection portion is connected to the first linkage rod;

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

[0019] The first connecting portion includes a first connecting sleeve sleeved on the first column;

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

[0021] In one embodiment, the frame further comprises a lower connecting rod assembly, the lower connecting rod assembly comprising a plurality of second connecting rods rotatably connected between two of the columns and rotatably connected in pairs, the two columns including the first column;

[0022] The transmission mechanism at least transmission-connects the rolling portion and one of the second connecting rods.

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

[0024] A transmission member is movably disposed on the first column in an up-and-down direction; and

[0025] a second linkage rod, one end of which is rotatably connected to the transmission member and the other end of which is rotatably connected to the second link connected to the first column;

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

[0027] In one embodiment, a downwardly penetrating active cavity is formed in the first column, and a second clearance hole penetrating to the active cavity and extending in the up-down direction is formed on the side wall of the column;

[0028] The transmission member comprises a transmission core built into the movable cavity, and a second connection portion connected to the transmission core through the second clearance hole, wherein the second connection portion is connected to the second linkage rod;

[0029] Wherein, the rolling part is arranged at the bottom end of the transmission core;

[0030] The second connecting portion includes a second connecting sleeve sleeved on the first column;

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

[0032] In one embodiment, the second connecting rod connected to the first column is configured as a driving lever, and the driving lever has a rotating portion and a driving end;

[0033] The rotating part of the driving lever is rotatably connected to the first column, and the driving end is located on a side of the rotating part close to the first column so as to rotate downward when the driving lever is rotated and folded;

[0034] Wherein, the second linkage rod is transmission-connected between the driving end and the transmission member;

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

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

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

[0038] The present invention further provides a child appliance, which comprises a folding frame as described in any one of the above items; the child appliance comprises a child bed.

[0039] The technical solution provided by the present invention is that the multiple columns in the frame move towards and away from each other, thereby realizing the switching of the frame between the folded state and the unfolded state, and a rolling portion is provided at the bottom of the first column among the multiple columns. At the same time, when the frame moves from the unfolded state to the folded state, the rolling portion can protrude downward relative to the bottom of the column to a protruding position. At this position, the rolling portion can contact the ground, thereby converting the original sliding friction between the first column and the ground into rolling friction between the rolling portion and the ground, thereby reducing the friction resistance applied to the first column by the ground, and reducing the difficulty of the user in unfolding and folding the children's appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0041] Figure 1 A schematic structural diagram of an embodiment of a folding frame provided by the present invention;

[0042] Figure 2 for Figure 1 A schematic diagram of the local structure of the middle folding frame (the frame is in a folded state);

[0043] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the middle folding frame;

[0044] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the local A in the middle;

[0045] Figure 5 for Figure 1 A schematic diagram of the local structure of the middle folding frame (the frame is in the middle state);

[0046] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of the middle folding frame;

[0047] Figure 7 for Figure 6 A schematic diagram of the enlarged structure of the local B in the middle;

[0048] Figure 8 for Figure 1 A schematic diagram of the local structure of the folding frame (the frame is in the unfolded state);

[0049] Fig. 9 for Figure 8A schematic diagram of the cross-sectional structure of the middle folding frame;

[0050] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of the local C in the middle;

[0051] Fig.11 for Fig. 9 A schematic diagram of a part of the structure of the folding frame;

[0052] Fig.12 for Fig.11 Schematic diagram of the enlarged structure of local D in the figure.

[0053] Description of Figure Numbers:

[0054] 100. Folding frame;

[0055] 1. Frame; 11. Column; 11a. First clearance hole; 11b. Second clearance hole; 11c. Overpass hole; 111. First column; 112. Mounting plate; 112a. Third clearance hole; 12. Upper enclosure rod assembly; 121. First connecting rod; 1211. Second channel; 122. Articulated 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 Part; 311, transmission core; 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 part; 341, second connecting rod; 40, locking part; 51, abutment surface; 522, limit seat; 523, boss; 524, matching surface; 53, stop seat; 54, elastic part; 60, angle connecting part.

[0056] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0059] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0060] Existing children's beds usually have 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 uprights of the frame move away from each other and touch the ground. The friction resistance between the uprights and the ground hinders the movement of the uprights, making it more difficult for the user to fold the children's bed.

[0061] From the analysis of the above problems, it can be seen that, firstly, it is difficult for the user to directly lift the frame of the children's bed and fold the four uprights in space. Therefore, the friction resistance between the uprights and the ground is difficult to avoid. It can be considered to alleviate the above problem by reducing the friction resistance.

[0062] In view of this, the present invention provides a folding frame and a child's crib. The application scenarios of the folding frame include but are not limited to children's cribs, and can also be used to place sundries. When the folding frame is applied to children's cribs, the folding frame can at least alleviate the difficulty of users in unfolding and folding the frame of the child's crib. Figure 1 A schematic structural diagram of an embodiment of a folding frame provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the local structure of the middle folding frame (the frame is in a folded state); Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the middle folding frame; Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the local A in the middle; Figure 5 for Figure 1 A schematic diagram of the local structure of the middle folding frame (the frame is in the middle state); Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure of the middle folding frame;

[0063] Figure 7 for Figure 6 A schematic diagram of the enlarged structure of the local B in the middle; Figure 8 for Figure 1 A schematic diagram of the local structure of the folding frame (the frame is in the unfolded state); Fig. 9 for Figure 8 A schematic diagram of the cross-sectional structure of the middle folding frame; Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of local C in the middle.

[0064] according to Figure 1 , Figure 2 , Figure 5 and Figure 8 The state change process of the folding frame 100 provided by the present invention can be clearly understood. In order to more clearly understand the connection relationship and position relationship of each component therein, please refer to Figure 3 , Figure 4 , Figure 6 , Figure 7 , Fig. 9 and Fig.10 In one embodiment of the present invention, the folding frame 100 includes a frame 1, a rolling portion 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 and far from each other so that the frame 1 has a folded state and an unfolded state. At least one column 11 is a first column 1111. The rolling portion 2 is arranged at the bottom of the first column 1111. At least one of the rolling portion 2 and the bottom of the first column 1111 is arranged as a movable member so that the rolling portion 2 and the bottom of the first column 1111 have a relative vertical movable stroke. In the vertical movable stroke, the rolling portion 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 member so that when the frame 1 is converted from the unfolded state to the folded state, the rolling portion 2 can move to the protruding position.

[0065] It should be noted that the frame 1 includes a plurality of columns 11, which are usually arranged along the circumference of the frame 1 and extend in the up-down direction. When the plurality of columns 11 are away from each other, a storage space can be formed therebetween. The storage space can be used, for example, for children or babies 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 switched to a folded state, thereby facilitating storage. There are various situations in which the number of columns 11 can be set. For example, when four columns 11 are set, the frame 100 is folded when viewed from a top view. In a square structure, when more columns 11 are provided, the frame 1 is in a polygonal structure when viewed from a top view. This embodiment does not limit the number of columns 11 included in the frame 1; “at least one column 11 is provided as a first column 1111” includes two columns 11 being provided as the first column 1111, three columns 11 being provided as the first column 1111, or even all columns 11 being provided as the first column 1111; the frame 1 generally also includes a connecting structure connecting a plurality of columns 11, but this embodiment does not limit this.

[0066] Among them, the downward and upward movements of the rolling portion 2 relative to the bottom of the first column 1111 are relative, that is, the bottom of the first column 1111 can be set to be fixed, and the rolling portion 2 can be set to be movable up and down, the rolling portion 2 can protrude downward from the bottom of the first column 1111 during its downward movement stroke to reach the protruding position, and the rolling portion 2 can retract upward into the bottom of the first column 1111 during its upward movement stroke to reach the retracted position; the bottom of the first column 1111 can also be set to be movable, and the rolling portion 2 is set to be fixed relative to the entirety of the first column 1111, the bottom of the first column 1111 can protrude downward during its downward movement stroke, thereby covering the rolling portion 2 to reach the protruding position, and the bottom of the first column 1111 can retract upward during its upward movement stroke, thereby exposing the rolling portion 2 to reach the retracted position; the specific structural form of the rolling portion 2 is not limited in this embodiment, and the rolling portion 2 can be as follows Figure 2 The ball bearing shown may also be a universal roller.

[0067] The transmission mechanism 3 is arranged between the frame 1 and the movable member (the movable member includes the rolling portion 2 and one of the bottoms of the first column 1111) to connect the movements of the two together, and its purpose is to enable the rolling portion to move to a protruding position when the frame 1 is switched from an unfolded state to a folded state; it can be understood that during the unfolding and folding process of the frame 1, there must be a relative motion structure, and the relative motion provides a source of power for the movement of the movable member. The specific structural form of the transmission mechanism 3 is not limited in this embodiment, as long as it can associate the movement of the frame 1 with the movement of the rolling portion 2;

[0068] Among them, "when the frame 1 is converted from the expanded state to the folded state, the transmission mechanism 3 drives the rolling part 2 to move to the protruding position" can be understood as, when the frame 1 leaves the expanded state, the rolling part 2 leaves the retracted position and immediately protrudes outward relative to the bottom of the first column 1111, and when the frame 1 reaches the folded state, the rolling part 2 completely reaches the protruding position. In this way, the retracted position of the rolling part 2 corresponds to the expanded state of the frame 1, and the protruding position of the rolling part 2 corresponds to the folded state of the frame 1; it can also be understood that in the process of the frame 1 converting from the expanded state to the folded state, the rolling part 2 leaves the retracted position and gradually reaches the protruding position. In this way, the active stroke of the rolling part 2 between the retracted position and the protruding position only corresponds to a partial interval of the conversion stroke of the frame 1 between the expanded state and the folded state.

[0069] According to the technical solution provided by the present invention, the plurality of columns 11 in the frame 1 move toward and away from each other, thereby realizing the switching of the frame 1 between the folded state and the unfolded state, and a rolling portion 2 is provided at the bottom of the first column 1111 among the plurality of columns 11. Meanwhile, during the movement of the frame 1 from the unfolded state to the folded state, the rolling portion 2 can protrude downward to a protruding position relative to the bottom of the column 11. At this position, the rolling portion 2 can contact the ground, thereby converting the original sliding friction between the first column 1111 and the ground into rolling friction between the rolling portion 2 and the ground, thereby reducing the friction resistance applied by the ground to the first column 1111, thereby reducing the difficulty for users in unfolding and folding the children's toys.

[0070] Moreover, in some embodiments, when the frame 1 is in the unfolded state, the rolling portion 2 is in the retracted position. Since the rolling portion 2 can be in the retracted position when the frame 1 is in the unfolded state, the first upright column 1111 contacts the ground through its bottom, thereby increasing the friction resistance between the frame 1 and the ground, preventing the folding frame 100 from moving relative to the ground, and improving the safety factor of the children's appliance.

[0071] In combination with the above embodiments, it can be seen that if the bottom of the first column 1111 is set as a movable part, the structural rigidity of the first column 1111 will undoubtedly be destroyed, and the supporting strength of the first column 1111 may be reduced, which is not good for the safety of the folding frame 100. In view of this, in some embodiments, please refer to Figure 2 and Figure 5 The rolling part 2 can be movably installed at the bottom of the first column 1111.

[0072] It should be noted that the rolling portion 2 is configured to be movable up and down, which means that the rolling portion 2 is a movable part, and the bottom of the first column 1111 is a fixed part relative to the first column 1111 as a whole.

[0073] According to the above technical solution, the rolling portion 2 is installed at the bottom of the first column 1111 so that it can move up and down, so that the bottom of the first column 1111 is a fixed part relative to the column 11 as a whole. Therefore, after the rolling portion 2 moves to the retracted position, the bottom of the first column 1111 can be in stable contact with the ground for a long time, which is beneficial to maintaining the supporting strength of the first column 1111.

[0074] In combination with the connection structure of the column 11 mentioned in the above embodiment, please continue to refer to Figure 1 In some embodiments, the frame 1 also includes an upper enclosure rod assembly 12 arranged between two adjacent columns 11, and the two adjacent columns 11 include a first column 1111, and the upper enclosure rod assembly 12 includes a plurality of first connecting rods 121, and the plurality of first connecting rods 121 are rotatably connected in pairs, and the first connecting rods 121 located at both ends are correspondingly rotatably connected with the columns 11, so that when the two columns 11 approach each other, the plurality of first connecting rods 121 can be rotated and folded; the transmission mechanism 3 at least transmits and connects the rolling portion 2 with one of the first connecting rods 121.

[0075] It should be noted that the extension direction of the multiple columns 11 is mostly up and down, so the main function of the columns 11 is support, and they do not have the function of a fence. The upper enclosure rod assembly 12 is arranged between two adjacent columns 11, which can separate the storage space of the frame from the external space, that is, it plays the role of a fence.

[0076] Among them, the number of the first connecting rods 121 can be set to two, three, four or even more, and "multiple first connecting rods 121 are rotatably connected in pairs" means that two adjacent first connecting rods 121 are rotatably connected head to tail, so that the upper enclosure rod assembly 12 is strip-shaped as a whole, and finally the free ends of the two first connecting rods 121 at the end are respectively rotatably connected to the corresponding columns 11; it is worth mentioning that in this embodiment, the rotation axis between the multiple first connecting rods 121 is in the same direction as the rotation axis of the first connecting rod 121 and the corresponding column 11, so as to ensure that the multiple first connecting rods 121 rotate relative to each other as the columns 11 move away from and approach each other.

[0077] Among them, the function of the transmission mechanism 3 is to transmit and connect one of the first connecting rods 121 and the rolling part 2, and its purpose is to link the relative rotation activity of the two adjacent first connecting rods 121 with the lifting activity of the rolling part 2, so that when the user drives the frame 1 to unfold or fold (when the two adjacent first connecting rods 121 are spread apart or relatively folded), the rolling part 2 can make corresponding actions; this embodiment does not limit the specific structural form of the transmission mechanism 3, as long as it can associate the relative rotation of the two adjacent first connecting rods 121 with the lifting activity of the rolling part 2.

[0078] According to the above technical solution, an upper enclosure rod assembly 12 is arranged between two adjacent columns 11, which can serve as a fence on the one hand, and can link the movements of multiple columns 11 moving away from and approaching each other on the other hand. Furthermore, the upper enclosure rod assembly 12 includes multiple first connecting rods 121 rotatably connected in pairs, and the multiple first connecting rods 121 can rotate and fold relative to each other when two adjacent columns 11 approach each other. The transmission mechanism 3 is connected between one of the first connecting rods 121 and the rolling part 2, and the first connecting rod 121 can be driven to expand and fold under the movement of the rolling part 2, thereby promoting the corresponding two adjacent columns 11 to move away from or approach each other, and can also drive the rolling part 2 to move under the expansion and folding activities of the first connecting rod 121.

[0079] The rotation connection between two adjacent first connecting rods 121 includes direct rotation connection and indirect rotation connection. The direct rotation connection is easy to understand. The indirect rotation connection includes connecting the two first connecting rods 121 through an articulated seat 122. The articulated seat 122 is similar to the connection joint of the two first connecting rods 121. For example, see Figure 2 The two first connecting rods 121 are connected together through the hinge seat 122 therebetween.

[0080] Furthermore, in some embodiments, two first connecting rods 121 are provided for each upper enclosure rod assembly 12 .

[0081] It should be noted that an upper enclosure rod assembly 12 includes two first connecting rods 121 , which means that the two first connecting rods 121 are at the ends and are respectively rotatably connected to the corresponding columns 11 , and one of the two first connecting rods 121 is connected to the rolling part 2 via the transmission mechanism 3 .

[0082] According to the above technical solution, the upper enclosure rod assembly 12 is configured to be composed of two first connecting rods 121. Under the premise of not affecting the relative movement of the two adjacent columns 11, the degree of freedom of the upper enclosure rod assembly 12 can be reduced, and the reduction in the degree of freedom also means the improvement of the reliability of the upper enclosure rod assembly 12. It can be understood that when the enclosure frame is in the expanded state, the connection point between the two first connecting rods 121 is fixed to prevent rotation, which can play a role in limiting the relative movement of multiple columns 11, which is beneficial to maintaining the stability of the enclosure frame.

[0083] Please continue reading Figure 2 , Figure 5 and Figure 8In some embodiments, the transmission mechanism 3 includes a transmission member 31 and a first linkage rod 32, and the transmission member 31 is movably arranged on the first column 1111 along the up and down directions; one end of the first linkage rod 32 is rotatably connected to the transmission member 31, and the other end is rotatably connected to the first connecting rod 121 connected to the first column 1111; wherein the rolling part 2 is arranged at the bottom end of the transmission member 31.

[0084] It should be noted that, since the settings of the first connecting rod 121 and the rolling part 2 are both associated with the first column 1111, the power transmission between the first connecting rod 121 and the rolling part 2 inevitably needs to pass through the first column 1111, wherein the transmission member 31 is an intermediate power transmission component, and this embodiment only limits the movement direction of the transmission member 31 on the first column 1111, and does not limit the specific structure of the transmission member 31; it can be understood that the two ends of the first linkage rod 32 and the rotation axis of the connecting part and the corresponding first connecting rod 121 are in the same direction as the rotation axis of the multiple first connecting rods 121.

[0085] According to the above technical solution, when the transmission member 31 drives the rolling part 2 to move upward, under the transmission connection action of the first linkage rod 32, the corresponding first link 121 can be stretched open, so that the first link 121 can adapt to the expansion movement of the frame, ensuring the smooth expansion of the frame; not only that, power is transmitted between the rolling part 2 and the first link 121 through the combination of the movable member and the first linkage rod 32, which is adapted to the basic structure of the frame, and its structural form is simple, stable and reliable, and the power transmission efficiency is also high.

[0086] Furthermore, in some embodiments, a movable cavity extending downward is formed in the first column 1111, and a first clearance hole 11a extending upward and downward and extending through the movable cavity is formed on the side wall of the first column 1111; the transmission member 31 includes a transmission core 311 built into the movable cavity, and a first connecting portion 312 connected to the transmission core 311 through the first clearance hole 11a, and the first connecting portion 312 is connected to the first linkage rod 32; wherein, the rolling portion 2 is arranged at the bottom end of the transmission core 311.

[0087] It should be noted that the function of the movable cavity in the column 11 is to accommodate and move the transmission core 311 of the transmission member 31, and the purpose of the movable cavity penetrating downward is to make way for the rolling part 2 set at the bottom of the transmission core 311; the function of the first making way hole 11a is to connect the transmission core 311 in the movable cavity with the first connecting part 312 outside the first column 1111.

[0088] According to the above technical solution, through the setting of the movable cavity and the first give way hole 11a, the transmission core 311 of the transmission member 31 can be set in the movable cavity, and the transmission core 311 can be moved under the drive of the first connecting part 312 outside the first column 1111. The significance of hiding the transmission core 311 in the movable cavity is that the installation space of the movable cavity can be fully utilized. The movable cavity can also provide guidance for the transmission core 311, which greatly reduces the complexity of the connecting parts between the transmission member 31 and the first column 1111, and can reduce the degree to which the movement of the transmission member 31 is affected by the external structure; at the same time, the setting of the movable cavity is conducive to reducing the overall weight of the first column 1111, which is conducive to the lightweight of the folding frame 100; in terms of appearance, the active cavity in which the transmission core 311 is hidden in the first column 1111 is visually simpler.

[0089] The above embodiment does not limit the specific structure of the first connecting portion 312. Figure 2 , Figure 5 and Figure 8 In some embodiments, the first connecting portion 312 includes a first connecting sleeve 3121 sleeved on the first column 1111 ; wherein the first linkage rod 32 is connected to the first connecting sleeve 3121 .

[0090] It should be noted that the transmission core 311 needs to be installed for the rolling part 2 and needs to drive the corresponding first connecting rod 121 to move through the first linkage rod 32. The rolling part 2 is located at the bottom of the first column 1111, and the first connecting rod 121 is usually located at the high point of the first column 1111. Therefore, the length of the transmission core 311 is generally set to be longer.

[0091] According to the above technical solution, the connecting part is arranged to be sleeved on the outside of the first column 1111 through the first connecting sleeve 3121, and its contact area with the first column 1111 is small. The first connecting sleeve 3121 can play a role in assisting the centering of the transmission core 311, so that the transmission core 311 maintains a coaxial setting state with the first column 1111, reduces the contact between the transmission core 311 and the inner wall of the active cavity, and reduces the movement resistance of the transmission member 31.

[0092] See also Figure 1 In some embodiments, the frame 1 also includes a lower connecting rod assembly 13, which includes a plurality of second connecting rods 131 rotatably connected between two columns 11 and rotatably connected in pairs, and the two columns 11 include a first column 1111; the transmission mechanism 3 at least transmission-connects the rolling portion 2 with one of the second connecting rods 131.

[0093] It should be noted that the lower connecting rod assembly 13 is usually arranged near the bottom of the column 11, and the extension direction of the multiple columns 11 is mostly in the up and down direction. Therefore, the main function of the column 11 is support, and it does not have a bottoming function. The lower connecting rod assembly 13 is arranged near the bottom of the column 11. On the one hand, it plays a bottoming function, and on the other hand, it can also drive the multiple columns 11 to move closer to and away from each other.

[0094] The position relationship of the two columns 11 can be adjacent in the circumferential direction of the frame, or can be opposite in the radial direction of the frame. No matter which two columns 11, there are multiple second connecting rods 131 rotatably connected in pairs between them. However, the rotation forms of the multiple second connecting rods 131 between the two columns 11 at different relative positions are different. For example, in one of the cases, please combine Figure 1 , Figure 1 The invention comprises four columns 11 and four second connecting rods 131, one end of the four second connecting rods 131 corresponds to the four columns 11 respectively, and the other end is simultaneously rotatably connected to a base 132. Under the up and down movement of the base 132, the four second connecting rods 131 can drive the four columns 11 to approach and move away synchronously. In this case, the second connecting rods 131 between two circumferentially adjacent columns 11 have a certain angle, and the two second connecting rods 131 between two radially opposite columns 11 are in the same extension direction. Similarly, the case of four columns 11 is analyzed. In another case, the circumferentially adjacent The two columns 11 can also be connected together by rotating end to end through two second connecting rods 131, and the connection between the two second connecting rods 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 through four additional second connecting rods 131. Under the up and down movement of the base 132, the four columns 11 can also be driven to move closer or farther synchronously. In this case, the second connecting rods 131 between two circumferentially adjacent columns 11 are in the same direction, and the multiple second connecting rods 131 between two radially opposite columns 11 have a certain angle.

[0095] Among them, the function of the transmission mechanism 3 is to transmit and connect the corresponding second connecting rod 131 and the rolling part 2, and its purpose is to link the movement of the second connecting rod 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 connecting rod assembly 13, the rolling part 2 can make corresponding movements; this embodiment does not limit the specific structural form of the transmission mechanism 3.

[0096] According to the above technical solution, the lower connecting rod assembly 13 includes a plurality of second connecting rods 131 arranged between the two columns 11. The actions of the plurality of columns 11 can be linked together through the plurality of second connecting rods 131, thereby playing the role of synchronously driving the plurality of columns 11 to move closer or farther away. Therefore, the lower connecting rod assembly 13 is usually also used as the point of action of the external driving force; the power can be efficiently transmitted from the second connecting rod 131 to the rolling part 2 through the transmission mechanism 3, and then the power can be further transmitted from the rolling part 2 to the first connecting rod 121 through the transmission mechanism 3, thereby realizing the synchronous transmission connection among the first connecting rod 121, the rolling part 2 and the second connecting rod 131.

[0097] Specifically, see Figure 1 The lower connecting rod assembly 13 includes a base 132 and a plurality of second connecting rods 131. The base 132 is located between the plurality of columns 11 and is movable in the up-down direction. One end of each of the plurality of second connecting rods 131 is rotatably connected to the base 132, and the other end is rotatably connected to the corresponding column 11. By driving the base 132 to move up and down, the plurality of columns 11 can be synchronously moved closer or farther away under the drive of the plurality of second connecting rods 131. This type of lower connecting rod assembly 13 has a simple structure and a good driving effect. The base 132 can be limited while bearing, thereby ensuring the stability of the enclosure frame when it is in the unfolded state required for use.

[0098] For further information, see Figure 3 , Figure 6 and Fig. 9 In some embodiments, the transmission mechanism 3 includes a transmission member 31 and a second linkage rod 33, wherein the transmission member 31 is movably arranged on the first column 1111 in the up and down directions; 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 linkage rod 131 connected to the first column 1111; wherein the rolling portion 2 is arranged at the bottom end of the transmission member 31.

[0099] It should be noted that, since the second connecting rod 131 and the rolling part 2 are both associated with the first column 1111, the power transmission between the second connecting rod 131 and the rolling part 2 inevitably needs to pass through the first column 1111, wherein the transmission member 31 is an intermediate power transmission component. This embodiment only limits the movement direction of the transmission member 31 on the first column 1111, and does not limit the specific structure of the transmission member 31.

[0100] According to the above technical solution, when the lower connecting rod assembly 13 drives the multiple columns 11 to approach each other through the multiple second connecting rods 131, the second linkage rod 33 can drive the connecting part of the transmission member 31 to move downward, thereby driving the rolling part 2 to a protruding position to reduce the friction resistance of the multiple columns 11 approaching each other; when the lower connecting rod assembly 13 drives the multiple columns 11 to move away from each other through the multiple second connecting rods 131, the second linkage rod 33 can drive the connecting part of the transmission member 31 to move upward, thereby driving the rolling part 2 to a retracted position, so as to finally make the bottom of the column 11 contact the ground; not only that, power is transmitted between the rolling part 2 and the second connecting rod 131 by combining the movable part and the second linkage rod 33, which is adapted to the basic structure of the frame, and its structural form is simple, stable and reliable, and the power transmission efficiency is also high.

[0101] The above embodiment only defines the movable direction of the transmission part on the first column 1111, and does not define the setting position of the transmission part in combination with the specific structure of the first column 1111. Figure 8 In some embodiments, a movable cavity extending downward is formed in the first column 1111, and a second clearance hole 11b extending upward and downward is formed on the side wall of the column 11; the transmission member 31 includes a transmission core 311 built into the movable cavity, and a second connecting portion 313 connected to the transmission core 311 through the second clearance hole 11b, and the second connecting portion 313 is connected to the second linkage rod 33; wherein the rolling portion 2 is arranged at the bottom end of the transmission core 311.

[0102] It should be noted that the function of the movable cavity in the column 11 is to accommodate and move the transmission core 311 of the transmission member 31, and the purpose of the movable cavity penetrating downward is to make way for the rolling part 2 set at the bottom of the transmission core 311; the function of the first making way hole 11a is to connect the transmission core 311 in the movable cavity with the first connecting part 312 outside the first column 1111.

[0103] According to the above technical solution, through the setting of the movable cavity and the first give way hole 11a, the transmission core 311 of the transmission member 31 can be set in the movable cavity, and the transmission core 311 can be moved under the drive of the first connecting part 312 outside the first column 1111. The significance of hiding the transmission core 311 in the movable cavity is that the installation space of the movable cavity can be fully utilized. The movable cavity can also provide guidance for the transmission core 311, which greatly reduces the complexity of the connecting parts between the transmission member 31 and the first column 1111, and can reduce the degree to which the movement of the transmission member 31 is affected by the external structure; at the same time, the setting of the movable cavity is conducive to reducing the overall weight of the first column 1111, which is conducive to the lightweight of the folding frame 100; in terms of appearance, the active cavity in which the transmission core 311 is hidden in the first column 1111 is visually simpler.

[0104] The above embodiments do not limit the specific structure of the second connecting portion 313 . In some embodiments, the second connecting portion 313 includes a second connecting sleeve 3131 sleeved on the first column 1111 ; wherein the second linkage rod 33 is connected to the second connecting sleeve 3131 .

[0105] It should be noted that the transmission core 311 needs to be installed for the rolling part 2 and needs to drive the rolling part 2 to move. 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 extend from a high place that is easily connected to the second linkage rod 33 toward the bottom of the first column 1111, and its length is generally set to be longer.

[0106] According to the above technical solution, the connecting part is arranged to be sleeved on the outside of the first column 1111 through the second connecting sleeve 3131, and its contact area with 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 maintains a coaxial setting state with the first column 1111, reduces the contact between the transmission core 311 and the inner wall of the active cavity, and reduces the movement resistance of the transmission member 31.

[0107] Combined with the above-mentioned embodiment, it can be seen that the second connecting sleeve 3131 needs to be connected to the transmission core 311 of the transmission member 31, and needs to be connected to the second linkage rod 33, and also needs to be sleeved outside 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 in the first column 1111 and the second linkage rod 33 respectively. The assembly process is relatively complicated. In view of this, in some embodiments, the second connecting sleeve 3131, the transmission core 311 and the first linkage rod 33 are The two linkage rods 33 are connected together by a connecting pin, and the connecting pin passes through the second clearance hole 11b and is connected to the transmission core 311. With this arrangement, it is only necessary to align the connecting holes of the second connecting sleeve 3131, the transmission core 311 and the second linkage rod 33, and then insert the connecting pin. The assembly process is relatively simple and the assembly efficiency is higher. At the same time, the connecting pin can be embedded in the transmission core 311, and there is no need to worry about the connection depth between the second connecting sleeve 3131 and the second linkage rod 33 being limited by the thickness of the second connecting sleeve 3131, resulting in the connection being not firm enough.

[0108] In conjunction with the rotational connection between 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 to the first column 1111 is configured as a driving lever 1311, and the driving lever 1311 has a rotating portion 13111 and a driving end; the rotating portion 13111 of the driving lever 1311 is rotationally connected to the first column 1111, and the driving end is located on a side of the rotating portion 13111 close to the first column 1111, so as to rotate downward when the driving lever 1311 is rotated and folded; wherein the second linkage rod 33 is transmission-connected between the driving end and the transmission member 31.

[0109] It should be noted that the rotating portion 13111 of the driving lever 1311 is used to connect the first column 1111, and the driving end of the driving lever 1311 is closer to the first column 1111, which can be understood as the driving end being closer to the main part of the first column 1111 than the rotating portion 13111, and can also be understood as being closer to the transmission member 31; wherein, "the driving end rotates downward when the driving lever 1311 is rotated and folded" is also equivalent to the driving end rotating upward when the driving lever 1311 is rotated and unfolded.

[0110] According to the above technical solution, the second connecting rod 131 connected to the first column 1111 is set as a driving lever 1311. In the process of driving the multiple columns 11 to move closer or farther away from each other, the driving end of the driving lever 1311 is connected to the transmission member 31 through the second connecting rod 33, so that the transmission member 31 can be driven to perform lifting activities, that is, the rolling part 2 is driven 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, and thus a labor-saving lever is formed, making it easier for the driving lever 1311 to drive the transmission member 31 to move.

[0111] Further, in some embodiments, at least one mounting plate 112 is extended laterally from the bottom of the first column 1111;

[0112] The rotating part 13111 of the driving lever 1311 is rotatably mounted on the mounting plate 112. A third clearance hole 112a is provided on the mounting plate 112 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 to the driving end through the third clearance hole 112a.

[0113] According to the above technical solution, the driving lever 1311 is connected to the mounting plate 112. By setting a third clearance hole 112a on the mounting plate 112, the second linkage rod 33 can be connected to the driving end of the driving lever 1311 through the third clearance hole 112a, thereby making full use of the installation 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 relatively compact and stable.

[0114] Specifically, see Figure 2 The second linkage rods 33 and the third give-way holes 112a correspond one-to-one to form a give-way linkage group, and two groups of the give-way linkage groups are arranged on both sides of the driving end. With such arrangement, through the drive 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.

[0115] Specifically, in combination with the two yield linkage groups, in some embodiments, the two mounting plates 112 are arranged opposite to each other, wherein the relative direction of the two mounting plates 112 is consistent with the relative direction of the two yield linkage groups.

[0116] Please refer to Fig.11 and Fig.12 The present application proposes a folding frame 100. In one embodiment of the present application, the folding frame 100 includes a column 11, an upper enclosure rod 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 enclosure rod assembly 12, and a transmission mechanism 3; the upper enclosure rod 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 is in the locking position to limit the upper enclosure rod assembly 12 in the unfolded state, and the locking member 40 is in the unlocking position to release the limit of the upper enclosure rod assembly 12 The transmission mechanism 3 comprises 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 enclosure rod assembly 12; the transmission member 31 and the second transmission member 34 are in abutment transmission cooperation, and the second transmission member 34 is configured to drive the locking member 40 to move; when the lower connecting rod assembly 13 is rotated and folded, the lower connecting rod assembly 13 can drive the column 11 to move closer to 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 unlocking position.

[0117] When the folding frame 100 is in normal use, the column 11 can be extended in the up-down direction. In the cross section perpendicular to the extension direction of the column 11, the cross section of the column 11 can be circular, and of course can also be square or rectangular. In addition, the number of columns 11 can be multiple, and the multiple columns 11 are arranged at intervals in the horizontal direction. Moreover, the connection between two adjacent columns 11 is connected end to end in sequence to form a closed loop. For example: when the number of columns 11 is four, the connection between two adjacent columns 11 is connected end to end in sequence to form a square or rectangle.

[0118] The upper enclosure rod assembly 12 is arranged at the upper end of the column 11, and can be extended in the horizontal direction or slightly inclined (for example, forming an angle less than or equal to 10° with the horizontal direction), and can be located between two adjacent columns 11. Among them, the number of upper enclosure rod assemblies 12 can correspond to the number of columns 11. For example: when there are four columns 11, the number of upper enclosure rod assemblies 12 can also be four, and each upper enclosure rod assembly 12 is located between two adjacent columns 11. In addition, in order to facilitate the upper enclosure rod assembly 12 to have an expanded state and a folded state, each upper enclosure rod assembly 12 can include two first connecting rods 121, and the ends of the two first connecting rods 121 that are close to each other are rotatably connected, and the ends that are far away are respectively rotatably connected to the corresponding columns 11. At this time, in the expanded state, the two first connecting rods 121 can form a straight angle or a nearly straight angle. In the folded state, the two first connecting rods 121 can form an acute angle. In addition, when the upper enclosure rod assembly 12 is folded, the ends of the two first connecting rods 121 that are close to each other can be rotated downward and folded, so that the ends of the two first connecting rods 121 in the upper enclosure rod assembly 12 that are close to each other can be folded under the action of gravity, thereby improving the convenience of folding the folding frame 100. In addition, the ends of the two first connecting rods 121 that are close to each other can be directly rotatably connected. Of course, it is also possible to provide an articulated seat 122 between the ends of the two first connecting rods 121 that are close to each other, and the ends of the two first connecting rods 121 that are close to each other are respectively rotatably connected to the articulated seat 122, thereby realizing an indirect rotatable connection of the ends of the two first connecting rods 121 that are close to each other. At this time, the articulated seat 122 is used to conveniently provide a connection position to realize the rotatable connection between the two rod bodies. In addition, the first connecting rod 121 and the column 11 can also be directly rotatably connected. Of course, it is also possible to provide an angle connector 60 between the column 11 and the two first connecting rods 121 adjacent to the column 11, and the column 11 and the two first connecting rods 121 adjacent to the column 11 are respectively rotatably connected to the angle connector 60, thereby realizing an indirect rotational connection between the first connecting rod 121 and the column 11. At this time, the angle connector 60 is convenient to provide a connection position to realize the rotational connection between the column 11 and the two first connecting rods 121 adjacent to the column 11. In addition, it is also necessary to explain that the rotational connection proposed in the present application can be that one of the connected objects is provided with an insertion shaft, and the other is provided with a socket, and the rotational connection between the connected objects is realized by inserting the insertion shaft into the socket. Of course, it is also possible that the connected objects are all provided with perforations, and the rotational connection between the connected objects is realized directly by inserting the insertion shaft. That is, the present application does not limit the method of rotational connection. In addition, on 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, and of course it can also be square or rectangular.

[0119] The lower connecting rod assembly 13 is arranged at the lower end of the column 11, and can be extended in the horizontal direction or slightly inclined (for example, forming an angle less than or equal to 10° with the horizontal direction), and can be located between two diagonal columns 11. The number of the lower connecting rod assemblies 13 can be half of the number of the columns 11. For example, when there are four columns 11, the number of the lower connecting rod assemblies 13 can be two, and each lower connecting rod assembly 13 is located between two diagonal columns 11 to form an X-shape. In addition, in order to facilitate the lower connecting rod assembly 13 to have an unfolded state and a folded state, each lower connecting rod assembly 13 can include two second connecting rods 131, and the two second connecting rods 131 are connected to each other at one end close to each other, and the ends away from each other are connected to the corresponding columns 11, or the second connecting sleeve 3131 or the mounting plate 112 described below. At this time, in the unfolded state, the two second connecting rods 131 can form a straight angle or a nearly straight angle. In the folded state, the two second connecting rods 131 can form an acute angle. In addition, when the lower connecting rod assembly 13 is folded, the two second connecting rods 131 can be folded with one end close to the other end facing upward. In addition, in order to facilitate the rotational connection of the two second connecting rods 131 in the lower connecting rod assembly 13, a base 132 can be set between the two second connecting rods 131, so that the base 132 can be conveniently used to provide a connection position for the second connecting rod 131 to be rotatably installed. In particular, when the lower connecting rod assembly 13 is located between two diagonal columns 11, the four second connecting rods 131 in the two lower connecting rod assemblies 13 can be rotatably connected through one base 132, so as to simplify the number of parts and simplify the structure, and at the same time, it can also facilitate the two lower connecting rod assemblies 13 to be arranged at the same height. In addition, when there is no locking structure between the lower connecting rod assembly 13 and the column 11 to lock the two in the unfolded state, the gravity of the base 132 can also be used to drive the lower connecting rod assembly 13 to unfold and open the column 11. Of course. A locking structure including elastic glass beads can also be set between the lower connecting rod assembly 13 and the column 11. The elastic glass bead can be arranged in one of the lower connecting rod assembly 13 and the column 11, and can be elastically extended and inserted into the other of the lower connecting rod assembly 13 and the column 11 to lock the lower connecting rod assembly 13 and the column 11 in the unfolded state. When the base 132 is lifted, the elastic glass bead can be driven to contract to unlock the lower connecting rod assembly 13 and the column 11, so that the two can be folded together.

[0120] The locking member 40 can be movably mounted on at least one of the first connecting rods 121 in the upper enclosure rod assembly 12, and has a locking position and an unlocking position when it moves relative to the upper enclosure rod assembly 12. The locking member 40 can lock the two first connecting rods 121 in the unfolded state in the following manner: the locking member 40 can be movably arranged on one of the two first connecting rods 121, and when the two rod bodies rotate to the unfolded state, the locking member 40 can be inserted into the other of the two first connecting rods 121 to block the relative rotation of the two first connecting rods 121. Alternatively, the locking member 40 can be movably arranged on one of the two first connecting rods 121, and a meshing gear can be arranged at one end of the two first connecting rods 121 that is close to each other, and when the two rod bodies rotate to the unfolded state, the locking member 40 can be inserted into two adjacent protruding teeth of the gear located on the same first connecting rod 121 as the locking member 40, so as to limit the gear and block the relative rotation of the two first connecting rods 121. It can be seen that the present application does not limit the locking method of the locking member 40 on the upper enclosure rod assembly 12 in the unfolded state, and ensures that when the locking member 40 moves to the locking position, the two first connecting rods 121 in the upper enclosure rod assembly 12 can be blocked from relative rotation; and when the locking member 40 moves to the unlocking position, the two first connecting rods 121 in the upper enclosure rod assembly 12 can be relatively rotated. In addition, the locking member 40 can be slidably set on the upper enclosure rod assembly 12, or it can be rotated.

[0121] The transmission mechanism 3 can receive the drive of the lower connecting rod assembly 13 when it rotates and folds through the transmission member 31, and then abuts and drives the second transmission member 34, and further drives and drives the locking member 40 from the locking position to the unlocking position through the second transmission member 34. Among them, the transmission member 31 can be set on the outside of the column 11, and of course it can also be set on the inside of the column 11. In addition, when the lower connecting rod assembly 13 rotates and folds, the transmission member 31 can be driven to slide downward, and of course it can also be driven to slide upward. In addition, when the lower connecting rod assembly 13 rotates and folds, the lower connecting rod 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, and of course it can also abut and drive the transmission member 31. This application does not limit the driving method of the lower connecting rod assembly 13 to the transmission member 31. In addition, the second transmission member 34 can be set on the outside of the upper enclosure rod assembly 12, and of course it can also be set on the inside of the upper enclosure rod assembly 12. In addition, the locking member 40 can be connected to 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. In this case, the stability of the second transmission member 34 driving the locking member 40 can be improved, and the installation and arrangement of the two can be convenient, 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 set to abut and drive. That is, the second transmission member 34 can abut and drive the locking member 40 when moving.

[0122] During the use of the folding frame 100 of the technical solution of the present application, when the user drives the lower connecting rod assembly 13 of the folding frame 100 to rotate and fold, the column 11 can be driven to move closer to the lower connecting rod assembly 13. At the same time, since the folding frame 100 is provided with a transmission mechanism 3 including a transmission member 31 for abutting transmission and a second transmission member 34, the lower connecting rod assembly 13 can also drive the transmission member 31 to move relative to the column 11 during the rotation 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 limit lock of the upper enclosure rod assembly 12, so that the upper enclosure rod assembly 12 can be rotated and folded accordingly. Therefore, the structural setting of the folding frame 100 in the present solution realizes that the upper enclosure rod assembly 12 is unlocked at the same time during the rotation and folding process of the lower connecting rod assembly 13. At this time, there is no need to perform a cumbersome step-by-step unlocking operation on the lower link assembly 13 and the upper enclosure rod assembly 12 of the folding frame 100, which simplifies the folding process of the folding frame 100, thereby facilitating the use of the folding frame 100. Moreover, at this time, the transmission mechanism 3 transmits the power through the hard transmission member 31 and the second transmission member 34 on the column 11 and the upper enclosure rod assembly 12, respectively, which can improve the stability of the transmission, thereby facilitating the stability and accuracy of unlocking the upper enclosure rod assembly 12.

[0123] In one embodiment of the present application, the transmission member 31 is provided with a groove 31111, the groove wall of the groove 31111 includes a contact surface 51, and the second transmission member 34 is provided with a boss 523, and the boss 523 is provided with a mating surface 524; when the second transmission member 34 is in the locking position, the boss 523 is inserted into the groove 31111; when the lower connecting rod assembly 13 drives the transmission member 31 to move relative to the column 11, the contact surface 51 slides on the mating surface 524 to drive the second transmission member 34 to move out of the groove 31111 and drive the locking member 40 to move to the unlocking position.

[0124] In this embodiment, when the lower connecting rod assembly 13 rotates and folds, the transmission member 31 can be driven to move downward. At this time, the abutting surface 51 can abut against the extrusion mating surface 524, thereby driving the boss 523 to move in a direction away from the groove 31111, so as to realize the abutment and driving of the transmission member 31 on the second transmission member 34. Among them, the groove 31111 and the boss 523 are respectively provided on the transmission member 31 and the second transmission member 34, so that when the folding frame 100 is in the unfolded state, the transmission member 31 and the second transmission member 34 can be relatively stably limited by the plug-in cooperation of the boss 523 and the groove 31111, thereby improving the stability of the transmission mechanism 3 and the stability of the use of the folding frame 100. In addition, the abutting surface 51 and the mating surface 524 can be inclined surfaces, so as to improve the stability of the cooperation between the two and improve the stability of the abutting surface 51 extruding the mating surface 524, thereby facilitating the stability of the movement of the second transmission member 34. In addition, in order to improve the compactness of the transmission mechanism 3, in the unfolded state, that is, when the second transmission member 34 is in the locked position, the abutment surface 51 can abut and cooperate with the matching surface 524. In addition, it should be noted that in other embodiments, the transmission member 31 can also be provided with a convex portion, and the convex portion and the convex column 523 can be abutted and cooperated with each other on an inclined surface or an arc surface.

[0125] In one embodiment of the present application, the transmission mechanism 3 further includes a stop seat 53 and an elastic member 54 . The stop seat 53 is disposed on the upper enclosure rod assembly 12 , and the elastic member 54 is disposed between the second transmission member 34 and the stop seat 53 .

[0126] In this embodiment, one end of the elastic member 54 can abut against the second transmission member 34, and the stopper 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 make the elastic member 54 generate an elastic reset force, and then the second transmission member 34 drives the locking member 40 to move and reset to the locking position. Among them, the elastic member 54 can be a spring. Moreover, when the folding frame 100 is in the unfolded state, the elastic member 54 can have a pre-compression state, so that the convex column 523 introduced above can be driven to be stably inserted into the groove 31111, so as to realize the limiting locking of the second transmission member 34 when the folding frame 100 is in the unfolded state. Of course, since the locking member 40 can be connected to the second transmission member 34, in other words, it can also be said that the locking member 40 in the locking position is limited, so as to improve the stability of the locking member 40 in the locking position and improve the stability of the folding frame 100 in the unfolded state. Of course, when the folding frame 100 is in the unfolded state, the elastic member 54 may not be in the pre-compression state. At this time, the second transmission member 34 may be clamped and limited by the elastic glass beads and the upper enclosure rod assembly 12 described above, thereby realizing the limit locking of the second transmission member 34 when the folding frame 100 is in the unfolded state. In addition, it should be noted that in other embodiments, the elastic member 54 may also be a spring sheet, etc.

[0127] In one 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 extended along the extension direction of the column 11, 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 extended along the extension direction of the upper enclosure rod assembly 12, the limiting seat 522 is connected to one end of the second connecting rod 341 close to the upper transmission end 3111, the limiting seat 522 is provided with a protruding column 523, and the locking member 40 is connected to one end of the second connecting rod 341 away from the limiting seat 522.

[0128] In this embodiment, the transmission member 31 is configured to include a transmission core 311 and an upper transmission end 3111, and the second transmission member 34 is configured to include a second link rod 341 and a stop seat 522, so that the upper transmission end 3111 and the stop seat 522 are conveniently provided with a setting position, so as to set the groove 31111 and the boss 523 structure. The transmission core 311 and the second link rod 341 can play a role in extending the distance, so as to realize the transmission cooperation between the transmission member 31 and the lower connecting rod assembly 13 located at the bottom of the folding frame 100, and the second transmission member 34 and the locking member 40 located in the middle of the upper enclosure rod assembly 12. Among them, the lower connecting rod assembly 13 can drive the lower end of the transmission core 311 when rotating and folding. In addition, it should be noted that the transmission member 31 can also include only the transmission core 311, and the second transmission member 34 can also include only the second link rod 341. At this time, a groove 31111 and a protruding column 523 are respectively provided on the transmission core 311 and the second link rod 341 .

[0129] Please refer to Fig.12 In one embodiment of the present application, the column 11 is provided with an active cavity and a pass hole 11c connected to the active cavity, and the upper enclosure rod assembly 12 is provided with a second channel 1211, which passes through one end of the upper enclosure rod assembly 12 close to the column 11; the transmission core 311 and the upper transmission end 3111 are arranged in the active cavity, and the limit 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 in the locking position, the boss 523 extends from one end of the second channel 1211 close to the column 11, passes through the pass hole 11c and is inserted into the groove 31111.

[0130] The present invention further proposes a children's tool, which includes a folding frame 100. The specific structure of the folding frame 100 refers to the above embodiment. Since the children's tool adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The folding frame 100 comprises a frame 1, a rolling part 2 and a transmission mechanism 3. The frame 1 comprises a plurality of columns 11. The plurality of columns 11 can be arranged close to and far from each other so that the frame 1 has a folded state and an unfolded 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 bottoms of the rolling part 2 and 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 vertical movable stroke. In the vertical movable stroke, the rolling part 2 has a protruding position protruding downward relative to the bottom of the first column 1111, and a retracted position retracted upward relative to the bottom of the first column 1111. The transmission mechanism 3 is transmission-connected between the frame 1 and the movable part so that when the frame 1 is in the unfolded state, the rolling part 2 is in the retracted position, and when the frame 1 is converted from the unfolded state to the folded state, the rolling part 2 can move to the protruding position. The primary users of the children's appliance include children and infants. In some embodiments, the children's appliance includes but is not limited to a crib.

[0131] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A folding frame, characterized in that: include: A frame, comprising a plurality of columns, wherein the plurality of columns can be arranged close to and far 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; a rolling portion, arranged at the bottom of the first column, wherein at least one of the rolling portion and the bottom of the first column is arranged as a movable member, so that the rolling portion and the bottom of the first column have a relative vertical movable stroke, and in the vertical movable stroke, the rolling portion has a protruding position protruding downward relative to the bottom of the first column, and a retracted position retracting upward relative to the bottom of the first column; and, The transmission mechanism is arranged between the frame and the movable member, 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.

2. The folding frame according to claim 1, characterized in that: The rolling part is mounted on the bottom of the first column so as to be movable up and down.

3. The folding frame according to claim 2, characterized in that: The frame further comprises an upper enclosure rod assembly disposed between two adjacent upright posts, and the two adjacent upright posts comprise the first upright post, the upper enclosure rod assembly comprises a plurality of first connecting rods, the plurality of first connecting rods are rotatably connected in pairs, and the first connecting rods at both ends are correspondingly rotatably connected to the upright posts, so that when the two upright posts are close to each other, the plurality of first connecting rods can be rotated and folded; The transmission mechanism at least transmits and connects the rolling portion and one of the first connecting rods; Corresponding to one upper enclosure rod assembly, two first connecting rods are provided.

4. The folding frame according to claim 3, characterized in that: The transmission mechanism comprises: A transmission member is movably disposed on the first column in an up-and-down direction; and a first linkage rod, one end of which is rotatably connected to the transmission member, and the other end of which is rotatably connected to the first connecting rod connected to the first column; Wherein, the rolling part is arranged at the bottom end of the transmission member.

5. The folding frame according to claim 4, characterized in that: A movable cavity penetrating downward is formed in the first column, and a first clearance hole penetrating to the movable cavity and extending in the up-down direction is formed on the side wall of the first column; The transmission member comprises a transmission core built in the movable cavity, and a first connection portion connected to the transmission core through the first clearance hole, wherein the first connection portion is connected to the first linkage rod; Wherein, the rolling part is arranged at the bottom end of the transmission core; The first connecting portion includes a first connecting sleeve sleeved on the first column; Wherein, the first linkage rod is connected to the first connecting sleeve.

6. The folding frame according to claim 2, characterized in that: The frame further comprises a lower connecting rod assembly, wherein the lower connecting rod assembly comprises a plurality of second connecting rods rotatably connected between two of the columns and rotatably connected in pairs, wherein the two columns include the first column; The transmission mechanism at least transmission-connects the rolling portion and one of the second connecting rods.

7. The folding frame according to claim 6, characterized in that: The transmission mechanism comprises: A transmission member is movably disposed on the first column in an up-and-down direction; and a second linkage rod, one end of which is rotatably connected to the transmission member and the other end of which is rotatably connected to the second link connected to the first column; Wherein, the rolling part is arranged at the bottom end of the transmission member.

8. The folding frame according to claim 7, characterized in that: A movable cavity penetrating downward is formed in the first column, and a second clearance hole penetrating to the movable cavity and extending in the up-down direction is formed on the side wall of the column; The transmission member comprises a transmission core built into the movable cavity, and a second connection portion connected to the transmission core through the second clearance hole, wherein the second connection portion is connected to the second linkage rod; Wherein, the rolling part is arranged at the bottom end of the transmission core; The second connecting portion includes a second connecting sleeve sleeved on the first column; Wherein, the second linkage rod is connected to the second connecting sleeve.

9. The folding frame according to claim 7, characterized in that: The second connecting rod connected to the first column is configured as a driving lever, and the driving lever has a rotating portion and a driving end; The rotating part of the driving lever is rotatably connected to the first column, and the driving end is located on a side of the rotating part close to the first column so as to rotate downward when the driving lever is rotated and folded; Wherein, the second linkage rod is transmission-connected between the driving end and the transmission member; At least one mounting plate is extended laterally from the bottom of the first column; The rotating part of the driving lever is rotatably mounted on the mounting plate, and a third clearance hole is arranged on the mounting plate corresponding to the driving end, and the third clearance hole extends along the circumference of the rotating part; The second linkage rod is connected to the driving end through the third clearance hole.

10. A children's appliance, characterized in that: It comprises the folding frame as claimed in any one of claims 1 to 9; the children's appliance comprises a children's bed.

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