Linkage folding support assembly, folding frame and folding table

Abstract

The present application relates to the field of outdoor folding tables. Disclosed are a linkage folding support assembly, a folding frame and a folding table. The support assembly comprises side table plates and two support leg assemblies, wherein each support leg assembly comprises a bottom frame, support legs, sliding members and inclined support rods; each support leg is provided with a first hinge point and a second hinge point, and one of the two hinge points is located on the sliding member; fourth hinge points are provided in the middle of the bottom frame; the bottom frames of the two support leg assemblies are hinged to each other, at least one of the two support leg assemblies is provided with a side table plate, and the side table plate is provided with third hinge points; each support leg assembly further comprises support strips, the support strips are hinged to the side table plate at the third hinge points, one party of the support strips and the side table plate is hinged to one party of the bottom frame and the inclined support rods at the first hinge points, and the other party of the support strips and the side table plate is hinged to the other party of the bottom frame and the inclined support rods at the second hinge points; and the inclined support rods are hinged to the bottom frame at the fourth hinge points. The linkage folding support assembly has the advantages of being quick to disassemble and assemble and improving the usage experience of a user.

Description

Linked folding support assembly, folding rack, and folding table

[0001] This application claims priority to the Chinese utility model patent with application number 202323358986.3, application date December 8, 2023, and invention name “A folding table”; this application also claims priority to the Chinese utility model patent with application number 202323359779X, application date December 8, 2023, and invention name “A linked folding support assembly, folding frame, and folding table”. Technical Field

[0002] The present application relates to the field of outdoor folding tables, and in particular to a linkage folding support assembly, a folding frame, and a folding table. Background Art

[0003] In addition to the main body, barbecue grills (tables) often feature side panels on one or both sides of the main body to facilitate the placement of condiments or side dishes, as well as a base frame beneath the main body. To facilitate quick assembly and disassembly, these grills typically utilize a foldable structure. However, these foldable grills currently have numerous components, requiring the side panels and the base frame to be folded separately, resulting in numerous steps for assembly and disassembly. Furthermore, some product designs have specific folding sequences. Failure to adhere to these sequences can result in folding failure, resulting in a poor user experience. Summary of the Invention

[0004] The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the present application provides a linkage folding support assembly, a folding stand, and a folding table, which have the advantages of convenient and fast disassembly and assembly, and improve the user experience.

[0005] To achieve the above-mentioned object, the present application provides a linked folding support assembly, the support assembly comprising two sets of support leg assemblies, the support leg assemblies being movable between an unfolded position and a folded position; wherein the support assembly further comprises at least one side table panel, the support leg assembly comprising a bottom frame, support legs, a sliding member, and an oblique support rod;

[0006] The support leg is provided with a first hinge point and a second hinge point, one of the first hinge point and the second hinge point is located on the sliding member, and the sliding member can move along the length direction of the support leg; a fourth hinge point is provided in the middle of the bottom frame;

[0007] The side table board is provided on at least one of the two groups of support leg assemblies, and for the support leg assembly provided with the side table board, a third hinge point is provided on the side table board; the support leg assembly further comprises a support bar, one end of the support bar and the side table board are hinged at the third hinge point, the other end of the support bar and one end of the side table board are hinged to one of the bottom frame and one end of the diagonal support rod at the first hinge point, the other end of the support bar and the other end of the side table board are hinged to the other of the bottom frame and one end of the diagonal support rod at the second hinge point; the diagonal support rod is hinged to the bottom frame at a fourth hinge point; one side of the bottom frame of one support leg assembly facing away from the support leg on the same side is hinged to each other;

[0008] When the sliding member moves, the sliding member can cause the side table plate and the bottom frame to move synchronously.

[0009] Optionally, the support bar is hinged to the corresponding bottom frame at the first hinge point; the side table panel is hinged to the diagonal support rod at the second hinge point; the first hinge point, the third hinge point, the second hinge point, and the fourth hinge point form a parallelogram structure.

[0010] Optionally, the support leg assembly includes two support legs arranged in parallel;

[0011] The bottom frame is hinged to the supporting leg on the inner side of the corresponding supporting leg;

[0012] In the support leg assembly provided with the side table board, the side table board is connected to the support leg at the inner side of the support leg.

[0013] Optionally, two parallel supporting legs in the same group of supporting leg assemblies form a square frame leg structure.

[0014] Optionally, the sliding member is provided on both supporting legs of the same group of supporting leg assemblies, and the supporting leg assembly further includes a connecting rod, and the connecting rod is provided between the two supporting legs of the supporting leg assembly, and the two ends of the connecting rod are respectively connected to the sliding members on the two supporting legs.

[0015] Optionally, in the unfolding-folding direction, one end of the side table panel and one end of the oblique support rod are hinged at the corresponding connecting rod.

[0016] Optionally, the second hinge point is located at one end of the oblique support rod, the fourth hinge point is located in the middle of the oblique support rod, and a sixth hinge point is provided at the other end of the oblique support rod; the oblique support rods of the two support leg assemblies are hinged at the sixth hinge point.

[0017] Optionally, a hinged connection is provided between the two bottom frames respectively located in the two groups of supporting leg assemblies, and the opening and closing angle of the hinged connection is between 0° and 180°; in the process of moving from the unfolded position to the folded position, the folding direction of one of the two bottom frames relative to the other bottom frame is downward.

[0018] As a second aspect of the present application, a folding frame is provided, which includes a support assembly and a foldable table frame, wherein the support assembly is the support assembly described in the first aspect of the present application, one side of the table frame is hinged to the support legs of one group of the support leg assemblies, and the other side of the table frame is detachably connected to the support legs of another group of the support leg assemblies, when the support leg assembly is in the expanded position, the table frame is in the expanded state, and when the support leg assembly is in the folded position, the table frame is in the folded state.

[0019] Optionally, the folding frame includes at least one side table top panel, and the support legs of at least one group of the support leg assemblies are correspondingly provided with the side table top panel, and one side of the side table top panel is hinged to one end of the corresponding support leg; a foldable support arm is also provided between the side table top panel and the corresponding support leg, and the two ends of the support arm are respectively hinged to the corresponding side table top panel and the corresponding support leg; when the support arm is in the unfolded state, a triangular support structure is formed between the support arm, the side table top panel and the support leg.

[0020] Optionally, the support arm includes a first support bar and a second support bar hinged to each other, the first support bar is hinged to the upper end of the corresponding support leg at one end away from the hinge with the second support bar, and the second support bar is hinged to the middle part of the corresponding side table panel at one end away from the hinge with the first support bar, and a limiting portion is provided on one of the first support bar and the second support bar, which can relatively fix the first support bar and the second support bar when the side table panel is in use.

[0021] Optionally, the support arm is a rigid support rod, one end of the support arm is hinged to the support leg, and a corresponding slide groove is provided on the side table panel, and the other end of the support arm is slidably connected in the slide groove; the slide groove has a proximal end and a distal end, the proximal end of the slide groove is close to the hinge between the side table panel and the support leg, and the distal end of the slide groove is away from the hinge between the side table panel and the support leg, and the proximal end of the slide groove is provided with a limiting groove for cooperating with the other end of the support arm; the limiting groove can lock the side table panel in the use state when cooperated with the other end of the support arm.

[0022] Optionally, a card slot is provided on the upper surface of one of the side table top panels, and a buckle is provided on the side of the table top frame adjacent to the side table top panel where the card slot is provided, and the buckle is located on the lower surface of the table top frame. The table top frame and the support leg are detachably connected through the cooperation of the buckle and the card slot.

[0023] Optionally, the bottom frame defines a loading surface; when the support leg assembly and the table frame are in the expanded position, the loading surface faces the table frame, and the angle between the loading surface and the table frame is between 0° and 10°.

[0024] As a third aspect of the present application, a folding table is provided, comprising a table top and a folding frame, characterized in that the folding frame is the folding frame described in the second aspect of the present application, and the table top is arranged on the table top frame.

[0025] Optionally, the table top panel includes a first table top and a second table top, and the first table top and the second table top are hinged. When the table top frame is in the unfolded position, the first table top and the second table top are arranged along the length direction of the table top panel, and one end of the first table top is hinged to the support assembly on the same side as the first table top.

[0026] Optionally, a hinge is provided between the first table top and the second table top, and the opening and closing angle of the hinge is between 0° and 180°; the hinge can rotate the back side of the second table top toward the back side of the first table top.

[0027] Optionally, when the support assembly is in the expanded position and the side table panel is in the use position, the second table panel can be fixed to the side table panel on a side away from the hinge with the first table panel through a detachable connecting structure provided therebetween.

[0028] Optionally, an angle connector is provided at one end of the first table board, and the first table board and the corresponding support assembly are hinged via the angle connector. The angle connector can form a distance between the hinge between the first table board and the support assembly on the same side and the back side of the first table board, and the distance can accommodate the second table board.

[0029] These features and advantages of this application will be disclosed in detail in the following detailed description and accompanying drawings. The best embodiments or means of this application will be fully illustrated in conjunction with the accompanying drawings, but this does not limit the technical solutions of this application. Furthermore, although there may be multiple features, elements, and components in each of the following text and accompanying drawings, different symbols or numbers may be used for convenience, but all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present application will be further described below with reference to the accompanying drawings:

[0031] FIG1 is a schematic structural diagram of the linked folding support assembly and folding table described in this embodiment, showing the support assembly and folding table in an unfolded position (state).

[0032] FIG2 is a schematic structural diagram of the linked folding support assembly and folding table in this embodiment, showing the support assembly and folding table during the folding process.

[0033] FIG3 is a schematic structural diagram of the linked folding support assembly and folding table described in this embodiment, showing the support assembly and folding table in the unfolded position (state).

[0034] FIG4 is a schematic diagram of the linkage folding support assembly and the folding table in the unfolded state according to the present embodiment.

[0035] FIG5 is a schematic diagram of the linkage folding support assembly and the folding table during the folding process according to the present embodiment.

[0036] FIG6a is an enlarged view of point A in FIG2.

[0037] FIG6 b is an enlarged schematic diagram showing the limiting portion.

[0038] FIG7 is a schematic diagram of the linkage folding support assembly and the folding table in the unfolded state according to an embodiment, showing the connection structure of the side table panels and the support assembly in another embodiment in which both sides adopt the same method.

[0039] FIG8 is a schematic diagram of the linkage folding support assembly and the folding table in the unfolded state according to an embodiment, showing the connection structure between the side table panels and the support assembly using two different implementations on both sides.

[0040] FIG9 is a schematic diagram of the linkage folding support assembly and the folding table in the unfolded state in one embodiment, showing that the first hinge point is set on the sliding member, and the connection structure of the side table panel and the support assembly adopts two different embodiments on both sides.

[0041] FIG. 10 is a schematic diagram showing another embodiment of a support arm.

[0042] FIG11 is an enlarged schematic diagram of point C in FIG10 .

[0043] FIG12 is a schematic diagram showing the folding of the support arm.

[0044] Among them, 10, support leg assembly; 100, support leg; 110, sliding part; 120, connecting rod; 200, side table panel; 300, bottom frame; 400, support bar; 500, oblique support rod; 20, table top panel; 21, first table panel; 22, second table panel; 600, side table top panel; 610, card slot; 620, support arm. DETAILED DESCRIPTION

[0045] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described in the embodiments are intended to be used to explain the present application and are not to be construed as limiting the present application.

[0046] Reference in this specification to "one embodiment," "an example," or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment itself can be included in at least one embodiment of the present patent disclosure. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

[0047] As a first aspect of the present application, a linked folding support assembly is provided, which is a component of a folding stand or a folding table. In the present application, there is no particular limitation on the application scenarios of the folding stand or the folding table. For example, the folding stand or the folding table can be used as a barbecue grill. As shown in Figures 1, 2, and 3, the folding table including the support assembly also includes a rectangular tabletop 20 and a linked folding support assembly disposed below the tabletop 20.

[0048] The support assembly includes at least one side table panel 200 and two sets of support leg assemblies 10, and the support leg assemblies are movable between an extended position and a folded position. The two sets of support leg assemblies 10 are arranged relative to each other. In the specific application scenario of a "folding table", the two sets of support leg assemblies are respectively located at the two ends of the table panel 20 in the longitudinal direction. After the table panel 20 is folded, the two sets of support leg assemblies 10 can move toward each other to achieve folding.

[0049] Each set of support leg assemblies 10 includes a bottom frame 300, support legs 100, a sliding member 110, and an inclined support rod 500. At least one of the two sets of support leg assemblies 10 is provided with a side table board 200. The support leg assembly 10 provided with the side table board 200 further includes a support bar 400.

[0050] In the present application, there is no particular limitation on the number of side table panels 200. For example, a side table panel 200 may be provided on only one set of support leg assemblies 10, or one side table panel 200 may be provided on each of two sets of support leg assemblies.

[0051] The following description uses the left-side support leg assembly 10 as an example, with reference to Figures 4 and 5 . A first hinge point a and a second hinge point b are provided on the support leg 100. These hinge points a and b are spaced apart along the length of the support leg 100. The first hinge point a is relatively fixed along the length of the support leg 100, while the second hinge point b can move toward or away from the first hinge point a during the unfolding and folding process.

[0052] As can be seen in Figures 1 and 2 , each support leg assembly 10 includes a base frame 300. The side of the base frame of one support leg assembly facing away from the supporting leg on the same side is hingedly connected to the side of the base frame of the other support leg assembly facing away from the same side. In the embodiment shown in Figures 1 and 2 , the right side of the base frame 300 of the left support leg assembly 10 is hingedly connected to the left side of the base frame 300 of the right support leg assembly 10. For ease of description, the hinge point between the two base frames 300 is referred to as the fifth hinge point e.

[0053] One end of the support bar 400 is hinged to the corresponding side panel 200. For ease of description, this hinge point is referred to as the third hinge point c. Specifically, as shown in Figure 4, the side panel 200 and the corresponding base frame 300 are located on either side of the corresponding support leg 100. It will be readily understood that the third hinge point c and the corresponding base frame 300 are also located on either side of the corresponding support leg 100. As shown in Figure 4, the edge of the side panel 200 (or side panel) is also hinged to one end of the diagonal support rod 500 at the second hinge point b. The other end of the diagonal support rod 500 is hinged to the middle of the corresponding base frame 300, that is, the two are hinged at the fourth hinge point d. As shown in Figure 4, the fourth hinge point d is located on the base frame 300 and is located between the first hinge point a and the fifth hinge point e.

[0054] In the same supporting leg assembly 10 , the first hinge point, the second hinge point, the third hinge point, and the fourth hinge point form a parallelogram structure.

[0055] As shown in Figure 4, in the left support leg assembly 10, the support bar 400 and the side table panel 200 are hinged at the third hinge point c, the diagonal support rod 500 and the corresponding bottom frame 300 are hinged at the fourth hinge point d, the bottom frame 300 and the support bar 400 are hinged at the first hinge point a, the side table panel 200 and the diagonal support rod 500 are hinged at the second hinge point b, and the first hinge point a, the second hinge point b, the third hinge point c, and the fourth hinge point d are connected to form a parallelogram structure.

[0056] Among them, when the support assembly is in the unfolded state, the side table panel 200 is opposite and parallel to the bottom frame 300, and the support bar 400 is opposite and parallel to the diagonal support rod 500. The support leg 100 is provided with a pin at the first hinge point a. Specifically, a pin hole is provided on the support leg 100, one end of the pin is provided in the pin hole, and the other end of the pin is passed through the support bar and the bottom frame. The pin can be rotated or not, without limitation. Similarly, other hinge points can also be hinged through similar pin structures, and they are all possible, and they are not listed here one by one. The support bar 400 and the bottom frame 300 are hinged through the pin at the first hinge point a.

[0057] Similarly, in the right support leg assembly 10, the first hinge point h, the second hinge point i, the third hinge point j, and the fourth hinge point g also form a parallelogram structure. Similarly, when the support assembly is in the unfolded state, the side table panel of the right support leg assembly 10 is opposite and parallel to the bottom frame, and the support bar is opposite and parallel to the diagonal support rod.

[0058] Both support legs of the same group of support leg assemblies 10 are provided with a sliding member 110, which can move along the length direction of the support leg 100. The second hinge point b is located on the sliding member 110, so that when the sliding member 110 moves, the sliding member 110 can synchronize the side table panel 200 and the corresponding bottom frame 300.

[0059] As shown in Figures 1 and 5 , in the extended position (also referred to as the extended state), the side table panels 200 and bottom frame 300 are nearly horizontal and both are perpendicular to the support legs 100. When moving or switching from the extended position (state) to the folded position (also referred to as the folded state), the slider 110 moves upward along the support legs 100. This causes the side table panels 200 to be retracted, while also driving the diagonal support rods 500 upward, thereby pulling up and folding the bottom frame 300. When the bottom frame 300 in one set of support leg assemblies 10 is pulled up and folded, the bottom frame 300 in the other set of support leg assemblies 10 is also driven by the fifth hinge point e, causing the two sets of support leg assemblies 10 to fold together.

[0060] Through the above structure, the side table panel 200 and the bottom frame 300 are linked together. When the user is disassembling or assembling, especially disassembling (i.e. folding), the side table panel 200 and the bottom frame 300 can be folded and the two sets of supporting leg assemblies 10 can be retracted and folded with only one action. Compared with the existing side table panel and bottom frame that adopts a step-by-step folding method, it can achieve the purpose of quick disassembly and assembly and improve the user experience.

[0061] It should be noted that, in addition to the above-mentioned embodiment of setting the second hinge point on the sliding member, those skilled in the art may also adopt the embodiment of setting the first hinge point on the sliding member. The difference between the two embodiments is: in the embodiment of setting the second hinge point on the sliding member, the sliding member and the ground are respectively located on the upper and lower sides of the first hinge point, and the sliding member is folded when it is at the far end relative to the ground and unfolded when it is at the near end; and in the embodiment of setting the first hinge point on the sliding member, the sliding member and the ground are both located below the second hinge point, and the sliding member is folded when it is at the near end relative to the ground and unfolded when it is at the far end.

[0062] When the first hinge point is disposed on the sliding member, the remaining components connected to the first and second hinge points are also adaptively adjusted accordingly, such as the linked folding support assembly shown in Figure 9. In the embodiment shown in Figure 9, the side table panel 200 on the left support leg assembly 10 is located above the first hinge point a, and the side table panel 200 on the right support leg assembly 10 is hinged to the first hinge point h. Furthermore, the first hinge point a is disposed on the left sliding member 110, and the first hinge point h is disposed on the right sliding member.

[0063] Whether the first hinge point is set on the sliding member or the second hinge point is set on the sliding member, technical personnel in this field can flexibly choose according to the situation without limitation. Here, only the implementation method in which the second hinge point is set on the sliding member is used as an example for explanation.

[0064] In this application, the location of the third hinge point on the side panel 200 is not specifically limited. For example, the third hinge point can be located on the edge of the side panel 200 facing away from the support leg 100. To facilitate operation and provide more usable area, the length of the side panel 200 can be increased. Accordingly, the third hinge point is located in the middle of the side panel 200. As shown in Figure 9, the third hinge point c is located in the middle of the left side panel 200, and the third hinge point j is located in the middle of the right side panel 200. Accordingly, the outer side of the side panel faces the second hinge point, forming a lever structure, with the third hinge point acting as the fulcrum of the lever. Thus, when folding the unfolded support assembly, pressing down on the outer side of the side panel 200 causes the slider 110 (i.e., the second hinge point) to move upward, achieving the same single action of folding the side panel 200 and the bottom frame 300, as well as retracting and folding the two sets of support leg assemblies 10.

[0065] In the embodiments of the present application, there is no particular limitation on the number of support legs 10 in the support leg assembly 10. For example, the support leg assembly 10 may include two parallel support legs 100, and within the same set of support leg assemblies 10, the side table panels 200 and the bottom frame 300 are both located between the two support legs 100. After folding, the side table panels 200 and the bottom frame 300 can be stored in the space between the two support legs 100, making the structure more compact.

[0066] Optionally, the two parallel support legs 100 in the same support leg assembly 10 may have a square frame structure. That is, the support leg assembly 10 further includes a connecting arm connecting the bottom ends of the two support legs 10, and the two support legs and the corresponding connecting arm are integrally formed. This arrangement allows the two support legs 100 to be produced by simply bending a single pipe twice during production, eliminating assembly steps and the use of fasteners. Furthermore, the single pipe structure provides increased strength.

[0067] Optionally, as shown in Figures 1 to 3, the sliding member 110 is a sliding sleeve mounted on the support leg 100, and a connecting rod 120 is provided between two support legs 100 in the same group, with both ends of the connecting rod 120 respectively connected to the sliding sleeve on the support leg 100. Specifically, in the unfolding / folding direction, one end of the side table panel 200 is hinged to one end of the corresponding diagonal support rod 500 at the corresponding connecting rod 120, that is, at the second hinge point.

[0068] By setting the connecting rod 120, the distance between the two support legs 100 in the same support leg assembly can be fixed, and the sliding members 110 on both sides of the side table panel 200 can be moved synchronously, preventing the sliding members 110 from being unable to slide smoothly due to the different distances between the top ends of the two support legs 100 and the bottom ends of the two support legs 100, thereby smoothly achieving synchronous folding.

[0069] As an optional embodiment, the length of the diagonal support rod 500 is greater than that of the support bar 400. The diagonal support rod 500 is sequentially provided with a first hinge portion, a second hinge portion, and a third hinge portion. The first hinge portion and the third hinge portion are located at respective ends of the diagonal support rod 500, and the second hinge portion is located in the middle of the diagonal support rod 500. The first hinge portion of the diagonal support rod 500 is hingedly connected to one end of the corresponding forehead-side table board 200 at a second hinge point on the corresponding sliding member 110. The second hinge portion of the diagonal support rod 500 is hingedly connected to the middle of the corresponding bottom frame 300 at a fourth hinge point. Specifically, as shown in Figure 4, in the support leg assembly 10 on the left, the first hinge portion of the oblique support rod 500 is hinged to one end of the side table panel 200 on the left at the second hinge point b on the corresponding sliding member 110, and the second hinge portion of the oblique support rod 500 is hinged to the middle portion of the left bottom frame 300 at the fourth hinge point d; in the support leg assembly 10 on the right, the first hinge portion of the oblique support rod 500 is hinged to one end of the side table panel on the right at the second hinge point i on the corresponding sliding member, and the second hinge portion of the oblique support rod 500 is hinged to the middle portion of the right bottom frame 300 at the fourth hinge point g.

[0070] The two oblique support rods 500 respectively located in the two groups of support leg assemblies 10 are hinged at the sixth hinge point f through the third hinge portion.

[0071] The length of the diagonal support rod 500 from the corresponding second hinge point to the corresponding fourth hinge point is equal to the length of the corresponding support bar 400 (i.e., the length from the corresponding first hinge point to the corresponding third hinge point). Since the support bar 400 is parallel to the corresponding diagonal support rod 500, the distance from the corresponding third hinge point to the corresponding second hinge point is equal to the distance from the corresponding first hinge point to the corresponding fourth hinge point. With this design, in the folded state, the second and third hinge points on the same side are collinear with the first hinge point, and the second and fourth hinge points on the same side are collinear with the first hinge point. This ensures that, in the folded state, the support bar 400 and side table panel 200, as well as the diagonal support rod 500 and bottom frame 300, are completely retracted into the two support legs 100, fully utilizing the space between the two support legs 100.

[0072] Specifically, for the left support leg assembly, the length of the diagonal support rod 500 from the second hinge point b to the fourth hinge point d is equal to the length of the support bar 400 (i.e., the length from the first hinge point a to the third hinge point c). Since the support bar 400 is parallel to the diagonal support rod 500, the distance from the third hinge point c to the second hinge point b is equal to the distance from the first hinge point a to the fourth hinge point d. With this design, in the folded state, the second hinge point b, the third hinge point c, and the first hinge point a are collinear, and the second hinge point b and the fourth hinge point d are also collinear with the first hinge point a. For the right support leg assembly, the length of the diagonal support rod from the second hinge point i to the fourth hinge point g is equal to the length of the support bar (i.e., the length from the first hinge point h to the third hinge point j). The distance from the third hinge point j to the second hinge point i is equal to the distance from the first hinge point h to the fourth hinge point g. In the folded state, the second hinge point i, the third hinge point j and the first hinge point h are collinear, and the second hinge point i and the fourth hinge point g are respectively collinear with the first hinge point h.

[0073] As shown in Figures 1 to 3, a hinged connector is provided between the two base frames 300, each located in the two sets of support leg assemblies 10. The hinged connector has an opening and closing angle of 0° to 180° and utilizes a tubular joint connector. During the transition from the deployed position to the folded position, one of the two base frames 300 folds downward relative to the other, increasing the load-bearing capacity of the base frames 300 through the joint connector. Furthermore, in the deployed position (state), the angle between the two hinged diagonal support rods 500 is a right angle, which more evenly distributes the load-bearing force on the base frames 300, making them more stable.

[0074] As shown in Figures 1 to 5, the second aspect of this embodiment further provides a folding frame, including a foldable table frame and a support assembly as described in the first aspect. The foldable table frame includes two parts, which are connected by a hinge, as shown in the hinge point 1 in Figures 4 and 5. One side of the table frame is hinged to the support leg 100 located in one group of support leg assemblies 10, as shown in the hinge point k in Figures 4 and 5, and the other side of the table frame is detachably connected to the support leg 100 located in the other group of support leg assemblies 10. When the support leg assembly is in the extended position, the table frame is in an extended state, and when the support leg assembly is in the folded position, the table frame is in a folded state.

[0075] To expand the usable area of ​​the folding stand, as shown in FIG1 , the folding stand optionally includes at least one side table panel 600. The support legs 100 of at least one set of support leg assemblies 10 are each provided with a corresponding side table panel 600. One side of the side table panel 600 is hingedly connected to one end (the top end in FIG1 ) of the corresponding support leg 100. A foldable support arm 620 is further provided between the side table panel 600 and the corresponding support leg 100. The two ends of the support arm 620 are respectively hingedly connected to the corresponding side table panel 600 and the corresponding support leg 100.

[0076] When the support arm 620 is in the unfolded state, the corresponding side table panel 600 and the corresponding support leg 100 are perpendicular to each other, and the support arm 620 is tilted so that a triangular support structure is formed among the support arm 620 , the corresponding side table panel 600 and the corresponding support leg 100 .

[0077] In the embodiment of the present application, there is no particular limitation on the specific structure of the support arm 620. As shown in FIG1 , the support arm 620 includes a first support bar 621 and a second support bar 622 that are hingedly connected. The first support bar 621 is hingedly connected to the upper end of the corresponding support leg 10 at one end away from the hinged connection with the second support bar 622. The second support bar 622 is hingedly connected to the middle portion of the corresponding side table panel 600 at one end away from the hinged connection with the first support bar 621. One of the first support bar 621 and the second support bar 622 is provided with a limiting portion 623 (see FIG6 b ). The limiting portion 623 can fix the first support bar 621 and the second support bar 332 relative to each other when the side table panel 600 is in use.

[0078] As another embodiment, as shown in Figures 10, 11 and 12, the support arm 620 is a rigid support rod, one end of the support arm 620 is hinged to the support leg 100 on the same side, and a slide groove 600a is provided on the corresponding side table panel 600, and the other end of the support arm 620 is slidably connected in the slide groove 600a; the slide groove 600a has a proximal end and a distal end, the proximal end of the slide groove 600a is close to the hinge between the side table panel 600 and the support leg 100 on the same side, and the distal end of the slide groove 600a is away from the hinge between the side table panel and the support leg 100 on the same side, and the proximal end of the slide groove 600a is provided with a limiting groove 600b for cooperating with the other end of the support arm 620; the limiting groove 600b can lock the side table panel 600 in the use state under the cooperation of the other end of the support arm 620.

[0079] Furthermore, as shown in Figures 2 and 6a, a card slot 610 is provided on the upper surface of one of the side table top panels 600, and a buckle is provided on the side of the table top frame adjacent to the side table top panel 600 provided with the card slot 610. The buckle is located on the lower surface of the table top frame, and an indirect detachable connection is achieved between the table top frame and the support leg 100 through the cooperation of the buckle and the card slot 610.

[0080] In FIG1 , the buckle has been inserted into the slot to securely connect the right side portion of the table frame to the right side table top panel.

[0081] In addition, those skilled in the art may also adopt a detachable connection method of direct connection, for example, setting the card slot at the end of the supporting leg, which is not limited here.

[0082] When the folding table of this embodiment is folded, the buckle and the slot 610 on the table frame are first disengaged, and then the table is folded in a linked manner as described in the first aspect.

[0083] In the expanded state, the base frame can be used to carry items. That is, both base frames 300 define a loading surface. Furthermore, when the support leg assembly and the table frame are in the expanded position, the loading surface faces the table frame, and the angle between the loading surface and the table frame is between 0° and 10°. To better carry items, optionally, when the support leg assembly and the table frame are in the expanded position, the loading surface faces the table frame, and the angle between the loading surface and the table frame is 0°.

[0084] As shown in FIG. 1 to FIG. 5 , the third aspect of this embodiment further provides a folding table, which includes a table top 20 and the folding frame described in the second aspect, wherein the table top 20 is disposed on the table top frame.

[0085] It should be noted that, in addition to the above-described embodiments, those skilled in the art may also improve upon the linked folding support assembly provided in the first aspect of this embodiment by flipping the side table panels and support bars and interchanging the positions of the two with respect to the first hinge point and the second hinge point to achieve a linked folding support assembly as shown in FIG7 (one embodiment). The support assembly includes at least one side table panel and two sets of support leg assemblies movable between an unfolded position and a folded position. Similarly, the figure only illustrates an embodiment in which the side table panels are symmetrically arranged on both sides. Those skilled in the art may also choose to arrange a side table panel on only one side according to actual circumstances, and this is not a limitation herein.

[0086] The main difference between the support assembly in Figure 7 and the support assembly in Figure 4 is that the other end of the support bar in Figure 7 is hinged to one end of the corresponding oblique support rod at the corresponding second hinge point, and the other end of the side table panel is hinged to the other end of the corresponding bottom frame at the corresponding first hinge point. Here, the distances from the first hinge point to the corresponding third hinge point and the corresponding fourth intersection are equal, and the distances from the second hinge point to the corresponding third hinge point and the corresponding fourth intersection are equal, and the second hinge point, the third hinge point and the fourth hinge point on the same side form an isosceles triangle. When the sliding member moves, the sliding member can synchronize the side table panel and the bottom frame. The remaining structures and features can be found in the support assembly in Figure 4 and will not be described here one by one.

[0087] Similarly, those skilled in the art combine the support assembly in Figure 7 and the support assembly in Figure 4 to obtain a support assembly as shown in Figure 8 (an embodiment), that is, the side table panels and the support assembly on both sides respectively adopt the above-mentioned two different connection methods, which are not explained one by one here.

[0088] In the specific embodiment shown in FIG1 , the desktop panel 20 is rectangular in shape, and each set of support leg assemblies 10 is composed of two support leg assemblies 10 in the width direction of the desktop panel. In the width direction of the desktop panel 20, the two support leg assemblies 10 are located on either side of the desktop panel 20, and each of the four corners of the desktop panel 20 is supported by a support leg assembly 10. It should be noted that those skilled in the art may appropriately increase the number of support leg assemblies 10 in each set in the width direction according to the width of the desktop panel 20, and this is not limited.

[0089] The two sets of support leg assemblies are symmetrically arranged on the left and right sides along the length of the table top. The following description uses one set of support leg assemblies as the basis. The support leg assembly includes two support legs, with support legs 100 arranged vertically. In the width direction of the table top, the side table panels are connected to the support legs on the inner sides of the support legs. In other words, the two support legs 100 are respectively arranged on both sides of the side table panels 200 and on both sides of the bottom frame 300. In the length direction of the table top 20, the bottom frame 300 is located on the side of the support legs 100 closer to the table top 20, and the side table panels 200 are located on the side of the support legs 100 farther from the table top 20.

[0090] The direction of expansion and folding of the two sets of support leg assemblies 10 is the same as the length direction of the table top 20. The support legs 100 are arranged vertically and parallel to each other. When the support legs 100 of the two sets of support leg assemblies 10 are expanded, the displacement directions of the two sets of support leg assemblies are opposite to each other, and when the support legs of the two sets of support leg assemblies are folded, the displacement directions of the two sets of support leg assemblies are opposite to each other. In addition, the expansion and folding directions of the support legs of the two sets of support leg assemblies are perpendicular to the arrangement direction of the support legs.

[0091] In the embodiment of the present application, there is no particular limitation on the specific structure of the desktop panel 20. For example, the desktop panel 20 can be a whole plate-shaped structure. When the folding table needs to be folded, the desktop panel 20 is removed from the folding frame.

[0092] To facilitate folding, the table top panel 20 optionally includes a first table top panel 21 and a second table top panel 22. The first table top panel 21 and the second table top panel 22 are hinged. When the table top panel frame is in the unfolded position, the first table top panel 21 and the second table top panel 22 are arranged along the length direction of the table top panel 20.

[0093] It should be noted that one end of the first table top 21 is hinged to the support assembly on the same side as the first table top 21. As shown in Figure 2, the first table top 21 is hinged to the support assembly 10 on the left, and the second table top 21 is not hinged to the support assembly 10 on the right.

[0094] In the embodiment of the present application, there is no particular limitation on how to achieve the hinge connection between the first table top 21 and the second table top 22. For example, a hinge 150 is provided between the first table top 21 and the second table top 22, and the opening and closing angle of the hinge 150 is between 0° and 180°; the hinge 150 can rotate the back of the second table top 22 toward the back of the first table top 21. At the same time, when the first table top 21 and the second table top 22 are flattened into a whole table top, the end of the first table top 21 at the hinge can be spliced ​​together with the end of the second table top 22 at the hinge with almost no gap.

[0095] Optionally, an angle connector 130 is provided at one end of the first table top 21 , and the first table top 21 and the corresponding support assembly 10 are hinged via the angle connector 130 , that is, the first table top 21 and the corresponding support assembly 10 are hinged via the angle connector 130 .

[0096] The corner connector 130 can form a distance between the hinge between the first table top 21 and the support assembly 10 on the same side and the back of the first table top 21, and the distance can accommodate the second table top 22 when the second table top 22 is folded to the back of the first table top 21.

[0097] In an embodiment of the present application, when the support assembly is in the unfolded position and the side table top panel 600 is in the use position, the back surface of the second table top 22 on the side away from the hinge between the second table top 22 and the first table top 21 can be overlapped on the loading surface of the side table top 600 and the two overlap at the overlap.

[0098] In order to ensure the stability of the folded state, optionally, a detachable connecting structure is provided between the second table top 22 and the corresponding side table top panel 600. The detachable connecting structure is located at the overlapping position and can fix the two when the two are overlapped.

[0099] As an optional embodiment, the detachable connection structure may include an insertion hole 410 and an insertion pin 420 that cooperates with the insertion hole 410. Specifically, the insertion hole 410 is provided on one of the back surface of the second table board 22 and the loading surface of the corresponding side table board 600, and the insertion pin 420 is provided on the other. The insertion hole 420 is provided on the back surface of the second table board 22, and the insertion pin 420 is provided on the loading surface of the side table board 600; for another example, the insertion pin 420 is provided on the back surface of the second table board 22, and the insertion hole 410 is provided on the loading surface of the side table board 600, and no limitation is made here. The insertion hole 410 here can be a blind hole, a through hole or a notch, and one end of the insertion pin can be integrally connected to the loading surface of the side table board or the back surface of the second table board or detachably connected. Those skilled in the art can flexibly choose according to the situation, and no limitation is made here.

[0100] The above solution, by providing an insertion hole 410 and an insertion pin 420, enables the second table panel 120 to interlock with the side table panel 320 when the folding table is unfolded and used, thereby preventing the second table panel 22 and the side table top panel 600 from being released from the unfolded or use state after being accidentally touched. This not only improves the stability of the table panel and the side table top panel 600 after unfolding, but also simplifies the structure to a certain extent through the shared interlocking structure. There is no need to provide locking structures for the second table panel 22 and the side table top panel 600 respectively, thereby reducing the installation process and saving production costs.

[0101] Since the second table top 22 has a certain width, in order to further improve the stability between the side table top panel 600 and the second table top 22 after interlocking, in one embodiment, a plurality of the insertion pins 420 are provided on the back of the second table top 22, and the side table top panel 600 is provided with a plurality of insertion holes 410 on the loading surface near the hinge. The insertion holes 410 correspond one-to-one to the insertion pins 420. The figure takes two pairs of insertion holes 410 and insertion pins 420 as an example for explanation. When the two are matched in pairs, the plurality of insertion pins 420 (or multiple insertion holes 410) are collinear in the width direction of the folding table.

[0102] Furthermore, the insertion hole 410 on the side table panel 600 extends along the width of the side table panel 600. Similarly, the insertion pin 420 on the second table panel 22 extends along the width of the second table panel 22. Both of these extend in the width direction to increase the contact area, making a wider insertion hole 410 have the effect of multiple distributed insertion holes 410. The same applies to the insertion pin 420.

[0103] In one embodiment, the insertion bolt 420 can pass through the insertion hole 410, and a hook portion 421 for buckling with the back of the side table panel 22 is provided at the free end of the insertion bolt 420, see Figure 6a. Furthermore, the hook portion 421 of the insertion bolt 420 faces the hinge between the second table panel 22 and the first table panel 21. When the hook portion 421 at the free end of the insertion bolt 420 is buckled with the back of the side table panel 600, the second table panel 22 and the side table panel 600 can be relatively fixed so that the two cannot be easily separated. And when folding or storage is needed, the user only needs to reach into the bottom of the side table panel 600 to pry open the hook portion 421 to achieve unlocking and detaching of the two. The unlocking operation is convenient and quick.

[0104] As shown in Figure 6a, in one embodiment, a hook portion 421 is provided at the free end of the insertion bolt 420, and the inner wall of the insertion hole 410 is provided with a side groove for engaging with the hook portion 421. The engaging surfaces on the side groove and the hook portion 421 are both provided with transition arc surfaces, so that the hook portion 421 can be engaged with the side groove and maintain a certain degree of firmness. When the external force is less than or equal to a preset value, the two will not disengage. When the external force applied by the user to the two is greater than the preset value, the two can be unlocked and disengaged. The magnitude of the external force causing the two to disengage can be controlled by providing a transition arc surface with a certain curvature, the roughness of the transition arc surface, or by using an insertion bolt 420 with a certain elastic deformation ability.

[0105] In addition, when the back side of the second table board is in contact with the back side of the first table board, the insertion bolt and the hook can be engaged with the first table board on the side away from the hinge with the second table board, so that the second table board can be fixed to the back side of the first table board through the insertion bolt and the hook when folded and stored.

[0106] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present application are included within the scope of the claims.

Claims

1. A linkage folding support assembly, the support assembly comprising two sets of support leg assemblies, the support leg assemblies being able to move between an unfolded position and a folded position; characterized in that: The support assembly further comprises at least one side table board, and the support leg assembly comprises a bottom frame, support legs, a sliding member and an oblique support rod; The support leg is provided with a first hinge point and a second hinge point, one of the first hinge point and the second hinge point is located on the sliding member, and the sliding member can move along the length direction of the support leg; a fourth hinge point is provided in the middle of the bottom frame; The side table board is arranged on at least one of the two groups of support leg assemblies, and for the support leg assembly provided with the side table board, a third hinge point is arranged on the side table board; the support leg assembly also includes a support bar, one end of the support bar and the side table board are hinged at the third hinge point, the other end of the support bar and one of the ends of the side table board are hinged to one of the bottom frame and one end of the oblique support rod at the first hinge point, the other end of the support bar and the other of the ends of the side table board are hinged to the other of the bottom frame and one end of the oblique support rod at the second hinge point; the oblique support rod is hinged to the bottom frame at a fourth hinge point; one side of the bottom frame of one support leg assembly that is away from the support leg on the same side is hinged to each other with one side of the bottom frame of the other support leg assembly that is away from the support leg on the same side; When the sliding member moves, the sliding member can cause the side table board and the bottom frame to move synchronously.

2. The support assembly according to claim 1, characterized in that: The support bar is hinged to the corresponding bottom frame at the first hinge point; the side table panel is hinged to the oblique support rod at the second hinge point; the first hinge point, the third hinge point, the second hinge point and the fourth hinge point on the same side form a parallelogram structure.

3. The support assembly according to claim 1 or 2, characterized in that: The support leg assembly comprises two support legs arranged in parallel; The bottom frame is hinged to the corresponding supporting leg at the inner side of the supporting leg; In the support leg assembly provided with the side table board, the side table board is connected to the support leg at the inner side of the support leg.

4. The support assembly according to claim 3, characterized in that: Two parallel supporting legs in the same group of supporting leg assemblies form a square frame leg structure.

5. The support assembly according to claim 3, characterized in that: The sliding member is provided on both supporting legs of the same group of supporting leg assemblies. The supporting leg assembly also includes a connecting rod. The connecting rod is provided between the two supporting legs of the supporting leg assembly. The two ends of the connecting rod are respectively connected to the sliding members on the two supporting legs.

6. The support assembly according to claim 5, characterized in that: In the unfolding-folding direction, one end of the side table board is hinged to one end of the oblique supporting rod at the corresponding connecting rod.

7. The support assembly according to claim 2, characterized in that: The second hinge point is located at one end of the oblique support rod, the fourth hinge point is located in the middle of the oblique support rod, and a sixth hinge point is also provided at the other end of the oblique support rod; the oblique support rods of the two support leg assemblies are hinged at the sixth hinge point.

8. The support assembly according to claim 2, characterized in that: A hinged connection is provided between the two bottom frames respectively located in the two groups of supporting leg assemblies, and the opening and closing angle of the hinged connection is between 0° and 180°; in the process of changing from the unfolded position to the folded position, the folding direction of one of the two bottom frames relative to the other bottom frame is downward.

9. A folding frame, comprising a supporting assembly and a foldable table frame, characterized in that: The support assembly is the support assembly described in any one of claims 1 to 8, one side of the table frame is hinged to the support legs of one group of the support leg assemblies, and the other side of the table frame is detachably connected to the support legs of another group of the support leg assemblies, and when the support leg assembly is in the extended position, the table frame is in the extended state, and when the support leg assembly is in the folded position, the table frame is in the folded state.

10. The folding stand according to claim 9, characterized in that: The folding frame includes at least one side table top panel, and the supporting legs of at least one group of the supporting leg assemblies are correspondingly provided with the side table top panel, and one side of the side table top panel is hinged to one end of the corresponding supporting leg; a foldable supporting arm is also provided between the side table top panel and the corresponding supporting leg, and the two ends of the supporting arm are respectively hinged to the corresponding side table top panel and the corresponding supporting leg; when the supporting arm is in the unfolded state, a triangular supporting structure is formed between the supporting arm, the side table top panel and the supporting leg.

11. The folding stand according to claim 10, characterized in that: The support arm includes a first support bar and a second support bar hingedly connected to each other, the first support bar is hingedly connected to the upper end of the corresponding support leg at one end away from the hinge with the second support bar, the second support bar is hingedly connected to the middle part of the corresponding side table top panel at one end away from the hinge with the first support bar, and a limiting portion is provided on one of the first support bar and the second support bar, and the limiting portion can relatively fix the first support bar and the second support bar when the side table panel is in use.

12. The folding stand according to claim 10, characterized in that: The support arm is a rigid support rod, one end of the support arm is hinged to the support leg, and a slide groove is provided on the corresponding side table panel, and the other end of the support arm is slidably connected in the slide groove; the slide groove has a proximal end and a distal end, the proximal end of the slide groove is close to the hinge between the side table panel and the support leg, and the distal end of the slide groove is far away from the hinge between the side table panel and the support leg, and the proximal end of the slide groove is provided with a limiting groove for matching with the other end of the support arm; The limiting groove can lock the side table top in the use state when the other end of the supporting arm cooperates with it.

13. The folding stand according to any one of claims 10 to 12, characterized in that: A card slot is provided on the upper surface of one of the side table top panels, and a buckle is provided on the side of the table top frame adjacent to the side table top panel on which the card slot is provided. The buckle is located on the lower surface of the table top frame, and a detachable connection is achieved between the table top frame and the supporting leg through the cooperation of the buckle and the card slot.

14. A folding stand according to any one of claims 9 to 12, characterized in that: The bottom frame defines a loading surface; when the support leg assembly and the table frame are in the unfolded position, the loading surface faces the table frame, and the angle between the loading surface and the table frame is between 0° and 10°.

15. A folding table, comprising a table top and a folding frame, characterized in that: The folding frame is the folding frame according to any one of claims 9 to 14, and the table top is arranged on the table top frame.

16. The folding table according to claim 15, characterized in that: The table top panel includes a first table top and a second table top, the first table top and the second table top are hinged, and when the table top frame is in the unfolded position, the first table top and the second table top are arranged along the length direction of the table top panel, and one end of the first table top is hinged to a supporting assembly located on the same side as the first table top.

17. The folding table according to claim 16, characterized in that: A hinge is provided between the first table top and the second table top, and the opening and closing angle of the hinge is between 0° and 180°; the hinge can rotate the back side of the second table top toward the back side of the first table top.

18. The folding table according to claim 17, characterized in that: When the support assembly is in the unfolded position and the side table board is in the use position, the second table board can be fixed to the side table board at a side away from the hinge with the first table board through a detachable connection structure arranged therebetween.

19. A folding table according to any one of claims 16 to 18, characterized in that: An angle connector is provided at one end of the first table board, and the first table board and the corresponding supporting assembly are hinged via the angle connector. The angle connector can form a distance between the hinge between the first table board and the supporting assembly on the same side and the back side of the first table board, and the distance can accommodate the second table board.

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