Folding frame

Abstract

The utility model provides a folding frame which can be switched between an unfolded state and a folded state and comprises a first connecting seat and at least three second connecting seats, the second connecting seats are arranged on the outer side of the first connecting seat at intervals in a surrounding mode, and the first connecting seat and the second connecting seats are connected through first connecting rods. The second connecting seat is provided with at least one second connecting rod; the second connecting base is adjustably connected in the length direction of the first connecting rod, the second connecting base is rotatably connected with the first connecting rod, the second connecting base is provided with a second supporting face abutting against the first connecting rod, and the second connecting base is in an unfolded state. Through the design of the folding frame, the assembly processes of different furniture products can be unified, the training requirements of employees are reduced, the production efficiency is improved, sharing and exchange of spare parts and assemblies can be promoted, the production cost is reduced, logistics transportation is facilitated, the folding frame is suitable for various types of folding furniture, and the diversified requirements of customers are met.

Description

Technical Field

[0001] The utility model relates to the technical field of folding frames of furniture, and particularly relates to a folding frame. Background Art

[0002] In the prior art, although folding furniture such as folding chairs, folding beds, folding tables, folding tents, etc. has significantly optimized the space utilization efficiency in design, its diverse folding frame structures have become a pain point that cannot be ignored. The unique folding mechanisms and assembly methods of each piece of furniture not only increase the training costs and time of employees on the production line, but also hinder the standardization and automation processes of the production process. Whenever a new folding furniture product is introduced, employees often need to go through a learning curve to master its unique assembly skills again, which not only reduces production efficiency, but also increases labor costs and management complexity. In addition, the diverse folding structure designs may also complicate the spare parts inventory management, because different folding parts are often not interchangeable, increasing the inventory pressure and logistics costs. Therefore, there is an urgent need for a modular and standardized folding frame. Summary of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the purpose of the present utility model is to propose a folding frame to solve the problems mentioned in the above background art section.

[0004] The present utility model is realized through the following technical solutions:

[0005] A folding frame, which can be switched between an unfolded state and a stored state, includes a first connecting seat and at least three third connecting seats. The third connecting seats are arranged around and spaced apart from the outside of the first connecting seat. The first connecting seat and the third connecting seats are connected by first connecting rods. The third connecting seats are provided with at least one second connecting rod; the third connecting seats can be arranged at different positions along the length direction of the first connecting rod, and the third connecting seats are rotatably connected to the first connecting rod; when the third connecting seats are in the unfolded state, the third connecting seats are in contact with the first connecting rod through a third supporting surface.

[0006] Further, the first connecting rod is provided with a plurality of adjusting holes along its length direction, and the third connecting seats are provided with rotating columns inserted into the adjusting holes. By the cooperation of the adjusting holes and the rotating columns, the third connecting seats can be arranged at different positions along the length direction of the first connecting rod.

[0007] Further, the third connecting seat includes side plates spaced on both sides of the third supporting surface, and the rotating columns are arranged on the side plates.

[0008] Further, the rotating column is a telescopic spring pin.

[0009] Further, the first connecting rod is horizontally arranged, the second connecting rod is vertically arranged, a traveling wheel is arranged below the second connecting rod, and a fourth connecting rod connecting the second connecting rod is further included.

[0010] Further, the first connecting rod is rotatably or detachably connected to the first connecting seat respectively.

[0011] Further, the first connecting seat is provided with a first supporting surface and side plates spaced apart on both sides of the first supporting surface. The first connecting rod is rotatably connected between the two side plates. The first supporting surface is used to abut against the first connecting rod and keep the first connecting rod in an unfolded state.

[0012] Further, the number of the second connecting rods connected to the same third connecting seat is two, and the two second connecting rods are distributed in a V shape.

[0013] Further, the free ends of the second connecting rod are two bifurcated rods distributed in a V shape.

[0014] Further, at least two free ends of the second connecting rods are provided with third connecting rods.

[0015] The beneficial effects of the present utility model are as follows: A folding frame that can be switched between an unfolded state and a stored state, including a first connecting seat and at least three third connecting seats. The third connecting seats are arranged around and spaced apart from the outside of the first connecting seat. The first connecting seat and the third connecting seats are connected by first connecting rods. The third connecting seat is provided with at least one second connecting rod. The third connecting seat can be arranged at different positions along the length direction of the first connecting rod, and the third connecting seat is rotatably connected to the first connecting rod. When the third connecting seat is in the unfolded state, the third connecting seat abuts against the first connecting rod through a third supporting surface. Through the above folding frame design, not only can the assembly processes of different furniture products be unified, the training requirements for employees be reduced, and the production efficiency be improved, but also the sharing and interchange of spare parts and components can be promoted, the production cost be reduced. The folding frame has few components and a simple overall structure. And by folding it to reduce the size specification, it is convenient for logistics transportation, applicable to various types of folding furniture, and can meet the diverse needs of customers. At the same time, it provides consumers with more flexible furniture configuration options. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the folding frame according to the first embodiment of the present utility model.

[0017] Figure 2 is Figure 1 a center cut-away view of

[0018] Figure 3 This is a perspective view of the first connecting seat of the present utility model.

[0019] Figure 4 This is a perspective view of the second connecting seat of the present utility model.

[0020] Figure 5 This is an unfolded state diagram of the folding frame when it is used as a folding sunshade or other folding furniture.

[0021] Figure 6 This is a schematic diagram of a folding lounge chair made of the folding frame of the present utility model.

[0022] Figure 7 This is a schematic diagram of a folding sun chair made of the folding frame of the present utility model.

[0023] Figure 8 This is a schematic diagram of a folding hammock or a folding hanging basket made of the folding frame of the present utility model.

[0024] Figure 9 This is a schematic diagram of a folding swing chair made of the folding frame of the present utility model.

[0025] Figure 10 This is a schematic diagram of a folding table made of the folding frame of the present utility model.

[0026] Figure 11 This is a schematic diagram of a folding bed made of the folding frame of the present utility model.

[0027] Figure 12 This is a schematic diagram of a folding sunshade, a tableware cover for dining table or a folding mosquito net made of the folding frame of the present utility model.

[0028] Figure 13 This is a schematic diagram of a folding cart made of the folding frame of the present utility model.

[0029] Figure 14 This is a schematic diagram of a folding chair made of the folding frame of the present utility model.

[0030] Figure 15 This is a perspective view of the folding frame of the second embodiment of the present utility model.

[0031] Figure 16 This is a side view of the folding frame of the second embodiment of the present utility model.

[0032] Figure 17 This is a perspective view of the third connecting seat of the present utility model.

[0033] Among them, the above-mentioned drawings include the following reference numerals:

[0034] 1. First connecting seat; 11. First end face; 12. First supporting face; 13. Side plate; 2. Second connecting seat; 21. Second end face; 22. First hole position; 23. Second hole position; 24. Reinforcing rib plate; 25. Arc-shaped connecting plate; 3. First connecting rod; 31. Adjusting hole; 4. Second connecting rod; 5. Third connecting rod; 6. Elastic cord; 7. Third connecting seat; 71. Third supporting face; 72. Side plate; 73. Extension part; 81. Fourth connecting rod; 82. Traveling wheel; 83. Adapter; 84. Fifth connecting rod; 85. First locking rod; 86. Snap button; 87. Handle; 871. Drag piece; 872. U-shaped piece; 873. Nut. Specific embodiments

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. It should be noted here that the descriptions of these embodiments are used to help understand the present utility model, but do not constitute a limitation on the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] Referring to Figures 1 to 5 As shown, as a folding frame of the first embodiment, the folding frame can be switched between a deployed state and a stored state. The folding frame includes a first connecting seat 1 and at least three second connecting seats 2. Among them, the number of the second connecting seats 2 includes but is not limited to three. Preferably, the second connecting seats 2 are arranged around the outside of the first connecting seat 1 at equal intervals, so that the stress of the folding frame is more balanced.

[0037] The first connecting seat 1 and the second connecting seat 2 are connected by a first connecting rod 3. The second connecting seat 2 is provided with at least one second connecting rod 4; one end of the second connecting rod 4 is connected to the second connecting seat 2, and the other end of the second connecting rod 4 is a free end for connecting folding furniture.

[0038] The first connecting seat 1 has a first end face 11, and the second connecting seat 2 has a second end face 21; referring to Figure 1 and Figure 2 As shown, when the folding frame is in the deployed state and the first end face 11 is facing down, the second end face 21 is lower than or flush with the first end face 11, and the free end of the second connecting rod 4 extends upward. Among them, the first end face 11 and the second end face 21 can be a plane or an arc-shaped surface.

[0039] When the folding furniture using the folding frame is a folding chair (such as a folding sunshade chair, a folding recliner, a folding swing chair, a folding hanging basket, etc.), a folding bed (such as a folding hammock), or a folding table, the corners of a plate member (such as a wooden plate, a plastic plate, an iron plate, etc.) or a fabric (such as canvas, etc.) can be selected to be connected to the second connecting rod 4 or the third connecting rod 5. Refer to Figure 1 and Figure 2 As shown, when in use, the folding frame is placed with the first end face 11 facing downwards, and the above-mentioned folding furniture is placed with the second end face 21 of the second connecting seat 2 as the support point.

[0040] When the folding furniture using the folding frame is a folding sunshade, a table food cover, a folding mosquito net, etc., refer to Figure 5 As shown, when in use, the folding frame is placed with the first end face 11 facing upwards, and the above-mentioned folding furniture is placed with the free end of the second connecting rod 4 or the free end of the third connecting rod 5 as the support point, and then a fabric is covered above or below the first connecting seat 1 and the first connecting rod 3.

[0041] The present utility model provides two embodiments for increasing the number of free ends of the second connecting rod 4 on the premise of keeping the number of the second connecting seats 2 unchanged.

[0042] Embodiment 1 is: Refer to Figure 7 As shown, the second connecting seat 2 is provided with a V-shaped hole so that it can connect two second connecting rods 4 at the same time, and these two connecting rods are not arranged in parallel, but are staggered with each other in an optimized V-shaped layout. This layout not only effectively disperses the pressure of the fabric or the plate member on the connection point, but also enhances the connection stability and torsional resistance through the structural characteristics of the V shape. Thus, by keeping the number of the second connecting seats 2 unchanged, ensuring that the usage amounts of the second connecting seats 2 and the first connecting rod 3 are not increased, the free ends of the second connecting rod 4 are increased without increasing the manufacturing cost of the folding frame.

[0043] Embodiment 2 is: The free ends of the second connecting rod 4 are two bifurcated rods arranged in a V-shaped distribution. Through the V-shaped bifurcated rod arrangement, additional support points and connection surfaces are provided for the fabric or the plate member, effectively dispersing the pressure of the fabric or the plate member on the connection point. Thus, by keeping the number of the second connecting seats 2 unchanged, ensuring that the usage amounts of the second connecting seats 2 and the first connecting rod 3 are not increased, the free ends of the second connecting rod 4 are increased without increasing the manufacturing cost of the folding frame.

[0044] When the folding furniture using the folding frame is a folding chair, a folding bed or a folding table, by increasing the number of free ends of the second connecting rod 4, the connection points between the fabric or the plate member and the folding frame can be increased, thereby effectively dispersing the pressure of the fabric or the plate member on the connection point, further enhancing the connection stability between the fabric or the plate member and the folding frame, and thus improving the overall usage experience and durability.

[0045] When the folding furniture using the folding frame is a folding awning, a table food cover, a folding mosquito net, etc., by increasing the number of free ends of the second connecting rod 4, there can be more support points between the folding frame and the ground. This design principle of dispersing the support pressure effectively reduces the risk of local overload, significantly enhances the stability and diverse requirements of the folding furniture in various usage scenarios, and avoids deformation problems caused by long-term use, bearing heavy objects, or external pressure.

[0046] When the folding furniture using the folding frame is a folding chair, referring to Figures 6 to 8 as shown, at least two free ends of the second connecting rod 4 are provided with a third connecting rod 5, and the cloth part connected by the third connecting rod 5 can be used as a backrest for the human body, improving the comfort of use.

[0047] The second connecting rod 4 and the third connecting rod 5 can be connected in the following ways. Specifically, the second connecting rod 4 and the third connecting rod 5 can be connected by integral molding, welding, gluing, plugging, etc.

[0048] Referring to Figure 6 as shown, the first connecting rod 3, the second connecting rod 4, and the third connecting rod 5 can all achieve a telescopic structure by sleeving inner and outer tubes, that is, by respectively arranging spring pins and a plurality of linearly arranged hole positions on the inner and outer tubes. The telescopic property of the first connecting rod 3 is beneficial to reducing the overall size of the folding frame when it is in the storage state. The telescopic structures of the second connecting rod 4 and the third connecting rod 5 can achieve height adjustment of the folding furniture, improving the convenience of use and adapting to various usage scenarios.

[0049] In addition, the lengths of the respective first connecting rods 3 can be selected to be different according to the different folding furniture, that is, the lengths of the respective first connecting rods 3 can be set to be equal or unequal.

[0050] In addition, one or two second connecting rods 4 can be selectively arranged on part of the second connecting seats 2. For example, the folding frame of the folding furniture has eight second connecting seats 2 as fulcrums supported on the ground, and then four of the eight second connecting seats 2 are selected to connect the second connecting rods 4, and then the above-mentioned cloth or plate is connected to the four second connecting rods 4.

[0051] The two ends of the first connecting rod 3 are respectively rotatably or pluggably connected to the first connecting seat 1 and the second connecting seat 2. Among them, the specific structures of rotation or plugging can refer to the following two embodiments.

[0052] As the first embodiment, the first connecting rod 3 is rotatably connected to the first connecting seat 1. Specifically, referring to Figure 2 and Figure 3As shown in the figure, the first connecting seat 1 is provided with a first supporting surface 12, and side plates 13 spaced on both sides of the first supporting surface 12. The first connecting rod 3 is rotatably connected between the two side plates 13. The first supporting surface 12 is used to abut against the first connecting rod 3 and keep the first connecting rod 3 in an unfolded state. When the folding frame is in the unfolded state, the first supporting surface 12 can provide a certain supporting force for the first connecting rod 3.

[0053] As a second embodiment, the first connecting seat 1 is provided with a hole for the first connecting rod 3 to be inserted. The first connecting rod 3 is inserted into the hole in an insertion manner and locked by means such as a snap button or a screw. As an extension, internal threads can be provided on the inner circumference of the hole, and the first connecting rod 3 is threadedly connected to the internal threads of the hole, so that the first connecting rod 3 is stably connected to the first connecting seat 1.

[0054] Similarly, the first connecting rod 3 can be detachably or rotatably connected to the second connecting seat 2 through the same above structure. One end of the second connecting rod 4 can be detachably or rotatably connected to the second connecting seat 2 through the same above structure.

[0055] When the second connecting rod 4 and the second connecting seat 2 are selected to adopt a detachable connection method, it further includes an elastic cord 6. The elastic cord 6 passes through the second connecting rod 4 and the second connecting seat 2, and both ends of the elastic cord 6 are fixedly connected to the second connecting rod 4 and the second connecting seat 2 respectively. Therefore, even if the user pulls out the second connecting rod 4 from the second connecting seat 2 to realize the separation between the two, the existence of the elastic cord 6 can ensure that they remain in a connected state, preventing the second connecting rod 4 from completely detaching inadvertently, thus effectively avoiding the problem of component loss that may occur during the storage or transportation of the folding furniture.

[0056] Refer to Figure 2 As shown in the figure, when the folding frame is in the unfolded state, preferably, the second end surface 21 of the second connecting seat 2 is a surface parallel to the horizontal plane, thereby increasing the contact area between the folding frame and the ground, making the folding frame more stable to be supported by the second connecting seat 2, and preventing the folding frame from shaking during use.

[0057] Refer to Figure 4 As shown in the figure, both ends of the second connecting seat 2 are provided with a first hole 22 and a second hole 23 for the first connecting rod 3 and the second connecting rod 4 to be inserted, and a reinforcing rib plate 24 connecting the first hole 22 and the second hole 23. An arc-shaped connecting plate 25 is further provided on the reinforcing rib plate 24, thereby ensuring the strength of the second connecting seat 2 and preventing the second connecting seat 2 from deforming during use.

[0058] Refer to Figure 2As shown by the angle A, the included angle between the first connecting seat 1 and the first connecting rod 3 can be set according to different applications, so that the force exerted by the user sitting on the folding frame can be more effectively dispersed, thereby improving the overall load-bearing capacity and stability of the folding frame.

[0059] Referring to Figure 14 As shown, when a folding chair is made of the folding frame of the present utility model, part A in the figure represents the fabric used, and the fabric can be a fabric such as canvas that can bear the weight of the human body. The fabric can be connected to the second connecting rod 4 and the third connecting rod 5 by means of tying with straps, etc. By adding the third connecting rod 5, the fabric at this part can be used as the backrest of the human body, improving the comfort of use.

[0060] Referring to Figure 6 As shown, when a folding recliner is made of the folding frame of the present utility model, part A in the figure represents the fabric used, and the fabric can be a fabric such as canvas that can bear the weight of the human body. The fabric can be connected to the second connecting rod 4 and the third connecting rod 5 by means of tying with straps, etc. By adding the third connecting rod 5, the fabric at this part can be used as the backrest of the human body, improving the comfort of use.

[0061] Referring to Figure 7 As shown, when a folding sunshade chair is made of the folding frame of the present utility model, part A in the figure represents the fabric used, and the fabric can be a fabric such as canvas that can bear the weight of the human body. The fabric can be connected to the second connecting rod 4 and the third connecting rod 5 by means of tying with straps, etc. By adding the third connecting rod 5, the fabric at this part can be used as the backrest of the human body, improving the comfort of use. A sunshade part B can be connected above the third connecting rod 5 to form a folding sunshade chair.

[0062] Referring to Figure 8 As shown, when a folding hammock or a folding hanging basket is made of the folding frame of the present utility model, it is supported on the ground by more than three second connecting seats 2. Part A in the figure represents the fabric used, and the fabric is connected to the symmetrically arranged second connecting rods 4 to form a folding hanging basket.

[0063] Referring to Figure 9 As shown, when a folding swing chair is made of the folding frame of the present utility model, it is supported on the ground by more than three second connecting seats 2. Part A in the figure represents the fabric used, and the fabric is connected to the symmetrically arranged second connecting rods 4 to form a folding swing chair.

[0064] Referring to Figure 10 As shown, when a folding table is made of the folding frame of the present utility model, part A in the figure represents the tabletop used. The tabletop can be a wooden board, a plastic board, an iron board, etc. The tabletop is detachably connected to the folding frame, and the tabletop can be set as a sleeve for the free end of the second connecting rod 4 to be inserted into.

[0065] Reference Figure 11 As shown, when the folding frame of the utility model is used to make a folding bed, part A in the figure represents the bed board used therein, which can be made of cloth or wooden board, plastic board, iron board or other cardboard. When the bed board is cardboard, it can be detachably connected to the folding frame, and the bed board can be set as a sleeve for the free ends of the two connecting rods 4 to be embedded.

[0066] Reference Figure 12 As shown, when the folding frame of the utility model is used to make a folding awning for outdoor use, or a dining table cover or a folding mosquito net commonly used in the home, part A in the figure represents the fabric used, and the fabric can be connected to the second connecting rod 4 by binding with straps, etc., thereby forming a folding awning, a dining table cover or a folding mosquito net.

[0067] Reference Figure 13 and Figure 17 As shown, as a deformation structure of the above second connecting socket 2, the second connecting socket 2 is replaced by a third connecting socket 7, and the third connecting socket 7 is used.

[0068] Reference Figure 13 As shown, the folding frame of the utility model can be made into a folding cart. In this embodiment, the first connecting rod 3 is arranged horizontally, the second connecting rod 4 is arranged vertically, and a walking wheel 82 is arranged below the second connecting rod 4. The walking wheel 82 and the first connecting rod 3 are a detachable plug-in structure. It also includes a fourth connecting rod 81 connected to the second connecting rod 4. The second connecting rod 4 and the fourth connecting rod 81 are connected through an adapter 83. The fourth connecting rod 81 is a telescopic structure, thereby forming a foldable folding cart. The third connecting seat 7 of this embodiment is provided with an extension portion 73, and a fifth connecting rod 84 is provided above the extension portion 73. The fifth connecting rod 84 makes the entire folding frame more stable. The first locking rod 85 is inserted from bottom to top into the extension portion 73 and the fifth connecting rod 84, and then inserted below the first locking rod 85 through the snap 86, so as to realize the structure of quick disassembly and fixing of the fifth connecting rod 84. A handle 87 is provided on one of the fifth connecting rods 84. The handle 87 includes a drag piece 871 provided below the fifth connecting rod 84. A U-shaped piece 872 is inserted into the fifth connecting rod 84 from top to bottom and locked to the drag piece 871. The U-shaped piece 872 is then connected by a nut to fix the handle 87.

[0069] Reference Figure 14 As shown, when the folding frame of the utility model is used to make a folding chair, the third connecting seat 7 is rotatably arranged at the end of the free end of the first connecting rod 3.

[0070] On the other hand, referring to Figures 14 to 17As shown in the figure, the folding frame as the second embodiment includes a first connecting seat 1 and at least three third connecting seats 7. The third connecting seats 7 are arranged around and spaced apart from the outside of the first connecting seat 1. The first connecting seat 1 and the third connecting seats 7 are connected by a first connecting rod 3. The third connecting seat 7 is provided with at least one second connecting rod 4. The third connecting seat 7 can be arranged at different positions along the length direction of the first connecting rod 3. The third connecting seat 7 is rotatably connected to the first connecting rod 3. When the third connecting seat 7 is in the unfolded state, the third connecting seat 7 abuts against the first connecting rod 3 through a third supporting surface 71.

[0071] During use, the peripheral end of the fabric of the folding furniture will be fixedly connected to the free end of the second connecting rod 4 by bundling or other means. During use, the middle position of the fabric is subjected to pressure such as that of a human body, which will keep the third supporting surface 71 in contact with the first connecting rod 3, so that the folding frame is in the unfolded state. Then, by adjusting the fixed position of the third connecting seat 7 on the first connecting rod 3, the tension of the fabric can be adjusted, so that the depression depth of the fabric can be adjusted. The user can adjust the fabric to an appropriate depression depth to obtain a more comfortable sitting experience. And when the folding frame is stored, the second connecting rod 4 rotates towards the first connecting rod 3 through the third connecting seat 7 until they are close to each other to complete the storage. Before rotation, first move the third connecting seat 7 upward along the first connecting rod 3 to prevent the fabric from being taut, which may cause problems that hinder the rotation of the second connecting rod 4, so that the folding frame can be stored without disassembling the fabric.

[0072] The first connecting rod 3 is provided with a plurality of adjusting holes 31 along its length direction. The third connecting seat 7 is provided with a rotating column embedded in the adjusting holes 31. By the cooperation of the adjusting holes 31 and the rotating column, the third connecting seat 7 can be arranged at different positions along the length direction of the first connecting rod 3.

[0073] Refer to Figure 17 As shown in the figure, the third connecting seat 7 includes side plates 72 arranged on both sides of the third supporting surface 71 at intervals. The rotating column is arranged on the side plates 72. In one embodiment, the rotating column is a telescopic spring pin. The specific structure of the telescopic spring pin is prior art. Through the floating of the telescopic spring pin, the telescopic spring pin can be adjustably embedded in the corresponding adjusting holes 31. In another embodiment, the rotating column is a combination of a bolt and a nut. By inserting the bolt into the adjusting holes 31 and connecting it with the nut, the positioning of the third connecting seat 7 is realized.

[0074] Similarly, the third connecting seat 7 can have the same structure as the second connecting seat 2. A V-shaped hole is provided in the third connecting seat 7 so that it can connect two second connecting rods 4 at the same time.

[0075] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0076] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0077] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A folding frame that can be switched between an unfolded state and a stored state, characterized in that: It includes a first connecting seat (1) and at least three third connecting seats (7). The third connecting seats (7) are arranged around and spaced apart on the outer side of the first connecting seat (1). The first connecting seat (1) and the third connecting seats (7) are connected by a first connecting rod (3). The third connecting seat (7) is provided with at least one second connecting rod (4). The third connecting seat (7) can be arranged at different positions along the length direction of the first connecting rod (3), and the third connecting seat (7) is rotatably connected to the first connecting rod (3). When the third connecting seat (7) is in the unfolded state, the third connecting seat (7) abuts against the first connecting rod (3) through a third supporting surface (71).

2. The folding frame according to claim 1, characterized in that: The first connecting rod (3) is provided with a plurality of adjusting holes (31) along its length direction. The third connecting seat (7) is provided with a rotating column embedded in the adjusting holes (31). By the cooperation of the adjusting holes (31) and the rotating column, the third connecting seat (7) is arranged at different positions along the length direction of the first connecting rod (3).

3. A folding frame according to claim 2, characterized in that: The third connecting seat (7) includes side plates (72) spaced apart on both sides of the third supporting surface (71), and the rotating column is arranged on the side plates (72).

4. A folding frame according to claim 3, characterized in that: The rotating column is a telescopic spring pin.

5. A folding frame according to claim 1, characterized in that: The first connecting rod (3) is horizontally arranged, the second connecting rod (4) is vertically arranged, a walking wheel (82) is arranged below the second connecting rod (4), and it further includes a fourth connecting rod (81) connecting the second connecting rod (4).

6. The folding frame according to claim 1, characterized in that: The first connecting rod (3) is rotatably or pluggably connected to the first connecting seat (1) respectively.

7. A folding frame according to claim 1, wherein: The first connecting seat (1) is provided with a first supporting surface (12) and side plates (13) spaced apart on both sides of the first supporting surface (12). The first connecting rod (3) is rotatably connected between the two side plates (13). The first supporting surface (12) is used to abut against the first connecting rod (3) and keep the first connecting rod (3) in the unfolded state.

8. A folding frame according to any one of claims 1 to 7, characterized in that: The number of the second connecting rods (4) connected to the same third connecting seat (7) is two, and the two second connecting rods (4) are distributed in a V shape.

9. A folding frame according to any one of claims 1 to 7, characterized in that: The free ends of the second connecting rod (4) are two bifurcated rods distributed in a V shape.

10. A folding frame according to any one of claims 1 to 7, characterized in that: The free ends of at least two of the second connecting rods (4) are provided with a third connecting rod (5).

Images