Folding table frame and folding table

Abstract

The invention relates to a folding table frame and a folding table, the folding table frame has an unfolded state and a folded state, the folding table frame comprises: a vertical rod; the first sliding seat is arranged on the vertical rod in a sliding manner; the lower end part of each first supporting rod is rotationally connected with the first sliding seat, and the upper end part of each first supporting rod is used for bearing the table top; the upper end part of each first matching rod is rotationally connected with the upper end part of the vertical rod, and the lower end part of each first matching rod is rotationally connected with the middle part of the corresponding first supporting rod; in the unfolded state, the first supporting rod obliquely extends upwards from inside to outside, the first supporting rod is unfolded relative to the vertical rod, and the first matching rod is unfolded relative to the vertical rod, in the folded state, the first supporting rod is close to the vertical rod, and the first matching rod is close to the vertical rod. The first sliding seat slides from top to bottom relative to the vertical rod to drive the first supporting rod to slide from top to bottom relative to the vertical rod to be folded.

Description

Technical Field

[0001] The present invention relates to the technical field of folding tables, and in particular to a folding table frame and a folding table. Background Art

[0002] Tables are indispensable tools in people's daily lives. Folding tables are widely used in outdoor settings, hotels, exhibitions, and other settings due to their folding function, which makes them easy to store and transport. Designing a folding table that is easy to fold, takes up minimal storage space, and is stable has always been a goal pursued by those skilled in the art. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a folding table frame and a folding table with a novel structure.

[0004] In order to solve the above technical problems, the technical solution adopted in the first aspect of the present invention is:

[0005] A folding table frame has an unfolded state and a folded state, and the folding table frame comprises:

[0006] A vertical pole extending in an up-down direction;

[0007] a first sliding seat, the first sliding seat being slidably disposed on the vertical rod;

[0008] a plurality of first support rods, wherein the lower end of each first support rod is rotatably connected to the first sliding seat, and the upper end of each first support rod is used to support the desktop;

[0009] a plurality of first cooperating rods, wherein the upper end of each first cooperating rod is rotatably connected to the upper end of the vertical rod, and the lower end of each first cooperating rod is rotatably connected to the middle portion of a corresponding first support rod;

[0010] When in the expanded state, the first support rod extends upward from the inside to the outside, the first support rod is expanded relative to the vertical rod, and the first matching rod is expanded relative to the vertical rod. When in the folded state, the first support rod is close to the vertical rod, and the first matching rod is close to the vertical rod. When switching from the expanded state to the folded state, the first sliding seat slides from top to bottom relative to the vertical rod, driving the first support rod to slide and retract from top to bottom relative to the vertical rod.

[0011] In one embodiment, the vertical pole includes a vertical pole body and a first fixing seat provided at an upper end portion of the vertical pole body, and the upper end portion of each first matching rod is rotatably connected to the first fixing seat.

[0012] In one embodiment, the first fixed seat includes a plurality of first fixed portions extending from the inside to the outside in the horizontal direction, and the plurality of first fixed portions are rotationally symmetrically arranged around the horizontal center point of the first fixed seat, and each of the first fixed portions has a first side and a second side that are oppositely arranged in the horizontal direction, and the first side and the second side are unequal in length, and / or, the first sliding seat includes a plurality of first sliding portions extending from the inside to the outside in the horizontal direction, and the plurality of first sliding portions are rotationally symmetrically arranged around the horizontal center point of the first sliding seat, and each of the first sliding portions has a first side and a second side that are oppositely arranged in the horizontal direction, and the first side and the second side are unequal in length.

[0013] In one embodiment, in the horizontal direction, the first fixing portion is located between two adjacent first sliding portions.

[0014] In one embodiment, the first fixed seat has a first fixed seat limiting portion, and when the folding table frame is in the unfolded state, the first fixed seat limiting portion is used to limit the first matching rod from rotating upward relative to the first fixed seat, and / or the first sliding seat has a first sliding seat limiting portion, and when the folding table frame is in the unfolded state, the first sliding seat limiting portion is used to limit the first support rod from rotating downward relative to the first sliding seat.

[0015] In one embodiment, when in the expanded state, the upper ends of the plurality of first support rods are located in the same horizontal plane, and / or, when in the folded state, the upper ends of the plurality of first support rods are located in the same horizontal plane.

[0016] In one embodiment, the rotation axes of the plurality of first support rods relative to the first sliding base are all located on the same horizontal plane.

[0017] In one embodiment, when in the expanded state, the upper ends of the plurality of first support rods are higher than the upper ends of the uprights, and / or, when in the folded state, the upper ends of the plurality of first support rods are higher than the upper ends of the uprights.

[0018] In one embodiment, it further includes a locking device, which is used to lock the first sliding seat and the vertical rod relative to each other.

[0019] In one embodiment, the folding table frame further comprises:

[0020] a second sliding seat, the second sliding seat being slidably disposed on the vertical rod;

[0021] a plurality of second support rods, wherein the upper end of each second support rod is rotatably connected to the second sliding seat, and the lower end of each second support rod is used to support the use surface;

[0022] a plurality of second cooperating rods, wherein the lower end of each second cooperating rod is rotatably connected to the lower end of the vertical rod, and the upper end of each second cooperating rod is rotatably connected to the middle portion of a corresponding second support rod;

[0023] When in the expanded state, the second support rod extends downward from the inside to the outside, the second support rod is expanded relative to the vertical rod, and the second matching rod is expanded relative to the vertical rod. When in the folded state, the second support rod is close to the vertical rod, and the second matching rod is close to the vertical rod. When switching from the expanded state to the folded state, the second sliding seat slides from bottom to top relative to the vertical rod, driving the second support rod to slide and retract from bottom to top relative to the vertical rod.

[0024] In one embodiment, the first sliding seat, multiple first support rods, and multiple first cooperating rods constitute an upper support assembly, and the second sliding seat, multiple second support rods, and multiple second cooperating rods constitute a lower support assembly, and the upper support assembly and the lower support assembly are axially symmetrically arranged relative to the horizontal center line of the vertical pole.

[0025] In one embodiment, when in the expanded state, the lower ends of the plurality of second support rods are located in the same horizontal plane, and / or, when in the folded state, the lower ends of the plurality of second support rods are located in the same horizontal plane.

[0026] In one embodiment, the rotation axes of the plurality of second support rods relative to the second sliding base are all located on the same horizontal plane.

[0027] In one embodiment, when in the expanded state, the lower ends of the plurality of second support rods are lower than the lower ends of the uprights, and / or, when in the folded state, the lower ends of the plurality of second support rods are lower than the lower ends of the uprights.

[0028] In one embodiment, when in the expanded state, the upper ends of the plurality of second support rods are lower than the lower ends of the uprights, and / or, when in the folded state, the lower ends of the plurality of second support rods are lower than the lower ends of the uprights.

[0029] In one embodiment, the vertical pole includes a vertical pole body and a second fixing seat provided at the lower end of the vertical pole body, and the lower end of each second matching rod is rotatably connected to the second fixing seat.

[0030] In one embodiment, the second fixed seat includes a plurality of second fixed portions extending from the inside to the outside in the horizontal direction, and the plurality of second fixed portions are rotationally symmetrically arranged around the center point of the second fixed seat in the horizontal direction, and each second fixed portion has a first side and a second side arranged opposite to each other in the horizontal direction, and the lengths of the first side and the second side are unequal, and / or, the second sliding seat includes a plurality of second sliding portions extending from the inside to the outside in the horizontal direction, and the plurality of second sliding portions are rotationally symmetrically arranged around the center point of the second sliding seat in the horizontal direction, and each second sliding portion has a first side and a second side arranged opposite to each other in the horizontal direction, and the lengths of the first side and the second side are unequal.

[0031] In one embodiment, in the horizontal direction, the second fixing portion is located between two adjacent second sliding portions.

[0032] In one embodiment, the second fixed seat has a second fixed seat limiting portion, and when the folding table frame is in the unfolded state, the second fixed seat limiting portion is used to limit the second matching rod from rotating downward relative to the second fixed seat, and / or the second sliding seat has a second sliding seat limiting portion, and when the folding table frame is in the unfolded state, the second sliding seat limiting portion is used to limit the second support rod from rotating upward relative to the second sliding seat.

[0033] In order to solve the above technical problems, the technical solution adopted in the second aspect of the present invention is:

[0034] A folding table comprises the folding table frame described above and a tabletop arranged at the upper ends of the plurality of first support rods.

[0035] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0036] The folding table frame of the present invention includes a vertical rod, a first sliding seat, a first support rod and a first matching rod. Through the simple connection relationship between the multiple components, the unfolding and folding of the folding table frame are realized. When the folding table frame is in the unfolded state, the first support rod extends upward from the inside to the outside, and the upper ends of the multiple first support rods are relatively unfolded to form a larger support surface for supporting the desktop, which is beneficial to the stable use of the desktop and the placement of items on the desktop. When the folding table frame is in the folded state, the upper ends of the multiple first support rods are relatively retracted, and the multiple first support rods are arranged in contact with the vertical rods, so that when the folding table frame is in the folded state, both the height and the width are reduced compared to the unfolded state. Therefore, the folding table frame of the present invention has a simple structure and ingenious design. It can meet the use requirements in the unfolded state and the storage requirements in the folded state, and has good usage prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1is a three-dimensional schematic diagram of a foldable table frame in an unfolded state according to an embodiment of the present invention;

[0038] Figure 2 is a three-dimensional schematic diagram of a foldable table in an unfolded state according to an embodiment of the present invention;

[0039] Figure 3 A front view of a foldable table frame in an embodiment of the present invention in an unfolded state;

[0040] Figure 4 A top view of a foldable table frame in an embodiment of the present invention in an unfolded state;

[0041] Figure 5 A bottom view of a foldable table frame in an embodiment of the present invention in an unfolded state;

[0042] Figure 6 An exploded view of a foldable table frame in one embodiment of the present invention;

[0043] Figure 7 is a three-dimensional schematic diagram of a foldable table frame in a folded state according to an embodiment of the present invention;

[0044] Figure 8 A front view of a foldable table frame in a folded state according to an embodiment of the present invention;

[0045] Figure 9 is an enlarged top view of a foldable table frame in a folded state according to an embodiment of the present invention;

[0046] Figure 10 is an enlarged bottom view of a foldable table frame in an embodiment of the present invention in a folded state;

[0047] The attached figures are as follows:

[0048] 1-vertical pole; 11-vertical pole body; 12-first fixed seat; 121-first fixed part; 13-second fixed seat; 131-second fixed part; 14-first side; 15-second side; 16-first fixed seat limiting part; 17-second fixed seat limiting part; 2-first sliding seat; 21-first sliding part; 22-first sliding seat limiting part; 3-first support rod; 4-first matching rod; 5-table top; 61-locking part; 611-locking groove; 62-operating member; 63-elastic member; 7-second sliding seat; 71-second sliding part; 72-second sliding seat limiting part; 8-second support rod; 9-second matching rod; 10-rotating shaft. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings to make the advantages and features of the present invention more easily understood by those skilled in the art. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0050] See also Figure 1-10 As shown, the foldable table frame has an open state and a folded state. In some specific embodiments, the foldable table frame specifically includes a vertical pole 1, an upper support assembly and a lower support assembly.

[0051] The upright pole 1 includes an upright pole body 11, a first fixing seat 12 provided at the upper end of the upright pole body 11, and a second fixing seat 13 provided at the lower end of the upright pole body 11. The upright pole body 11 extends in the up-down direction, the upper support assembly is provided at the upper portion of the upright pole body 11, and the lower support assembly is provided at the lower portion of the upright pole body 11. In one embodiment, the first fixing seat 12 includes a plurality of first fixing portions 121 extending from inside to outside in the horizontal direction. The plurality of first fixing portions 121 are rotationally symmetrically arranged around the horizontal center point of the first fixing seat 12. Each first fixing portion 121 has a first side 14 and a second side 15 arranged opposite to each other in the horizontal direction. The first side 14 and the second side 15 are arranged with unequal lengths. Figure 4 and 9 As shown, in this embodiment, there are four first fixing portions 121, and the first side 14 of each first fixing portion 121 is approximately half the length of the second side 15. In one embodiment, the second fixing base 13 includes a plurality of second fixing portions 131 extending from the inside to the outside in the horizontal direction. The plurality of second fixing portions 131 are rotationally symmetrically arranged around the horizontal center point of the second fixing base 3. Each second fixing portion 131 has a first side 14 and a second side 15 arranged opposite to each other in the horizontal direction, and the first side 14 and the second side 15 are arranged with unequal lengths. Figure 5 and 10 As shown, in this embodiment, four second fixing portions 13 are provided, and the first side 14 of each second fixing portion 13 is approximately half the length of the second side 15 .

[0052] The upper support assembly includes a first sliding seat 2 , a plurality of first support rods 3 , and a plurality of first matching rods 4 .

[0053] The first sliding seat 2 is slidably mounted on the upright body 11. Specifically, in one embodiment, the first sliding seat 2 is sleeved on the upright body 11 and can slide up and down relative to the upright body 11. In one embodiment, the first sliding seat 2 includes a plurality of first sliding portions 21 extending horizontally from the inside to the outside. The plurality of first sliding portions 21 are rotationally symmetrically arranged about the horizontal center point of the first sliding seat 2. Each first sliding portion 21 has a first side 14 and a second side 15 that are oppositely arranged in the horizontal direction. The first side 14 and the second side 15 are unequal in length. In one embodiment, four first sliding portions 21 are provided. The first side 14 of each first sliding portion 21 is approximately half the length of the second side 15. The first fixing portion 121 is located between two adjacent first sliding portions 21 in the horizontal direction.

[0054] The lower end of each first support rod 3 is rotatably connected to a corresponding first sliding portion 21. Specifically, the lower end of each first support rod 3 can be rotatably connected to a corresponding first sliding portion 21 via a rotating shaft 10. The upper end of each first support rod 3 is used to support the table top 5. In one embodiment, four first support rods 3 are provided. In other embodiments, the number of first support rods 3 can also be set to any number such as 3, 5, 6, or 7. In one embodiment, the rotation axis center lines of the plurality of first support rods 3 relative to the first sliding seat 2 are all located on the same horizontal plane. In one embodiment, the lengths of the plurality of first support rods 3 are equal. Figure 2 As shown, the table top 5 can be made of woven material, which makes it easy for the table top 5 to be folded and unfolded together with the folding table frame. The upper end of the first support rod 3 is fixedly or detachably connected to the table top 5, and components such as a cup holder and a mobile phone holder can be set on the table top 5.

[0055] The upper end of each first cooperating rod 4 is rotatably connected to a corresponding first fixing portion 121, and the lower end of each first cooperating rod 4 is rotatably connected to the middle portion of a corresponding first support rod 3. Specifically, the upper end of each first cooperating rod 4 is rotatably connected to a corresponding first fixing portion 121 via a rotating shaft 10, and the lower end of each first cooperating rod 4 is rotatably connected to the middle portion of a corresponding first support rod 3 via a rotating shaft 10. The number of first cooperating rods 4 corresponds to the number of first support rods 3. In one embodiment, four first cooperating rods 4 are provided. In other embodiments, the number of first cooperating rods 4 can be set to any number, such as 3, 5, 6, or 7. In one embodiment, the rotational axes of the multiple first cooperating rods 4 relative to the first fixing base 12 are all located on the same horizontal plane. In one embodiment, the multiple first cooperating rods 4 are of equal length.

[0056] In one embodiment, the first fixed seat 12 has a first fixed seat limiting portion 16. When the folding table frame is in the unfolded state, the first fixed seat limiting portion 16 is used to limit the first cooperating rod 4 from rotating upward relative to the first fixed seat 12. Specifically, in one embodiment, the cross-section of each first fixed portion 121 is an inverted U-shaped arrangement, and the upper end portion of the first cooperating rod 4 is inserted into the inverted U-shaped space. When the folding table frame is in the unfolded state, the top of the inverted U-shape is the first fixed seat limiting portion 16, which prevents the first cooperating rod 4 from rotating further upward. When the folding table carries heavier items, the first fixed seat limiting portion 16 can provide support, further enhancing the reliability of the folding table frame.

[0057] In one embodiment, the first sliding seat 2 has a first sliding seat stopper 22. When the folding table frame is in the unfolded state, the first sliding seat stopper 22 is used to limit the downward rotation of the first support rod 3 relative to the first sliding seat 2. Specifically, in one embodiment, the cross-section of each first sliding portion 21 is U-shaped, and the lower end of the first support rod 3 is inserted into the space within the U-shaped portion. When the folding table frame is in the unfolded state, the bottom of the U-shaped portion serves as the first sliding seat stopper 22, preventing the first support rod 3 from further downward rotation. When the folding table frame is carrying heavy items, the first sliding seat stopper 22 can provide support, further enhancing the reliability of the folding table frame.

[0058] In one embodiment, the folding table frame includes a locking device for relative locking between the first sliding seat 2 and the upright 1. Specifically, in one embodiment, the locking device includes a locking portion 61 disposed on the upright body 11 and an operating member 62 disposed on the first sliding seat 2. The locking portion 61 has a multi-stage locking groove 611 arranged in the vertical direction. The operating member 62 is rotatably disposed relative to the first sliding seat 2. Specifically, the operating member 62 is rotatably disposed relative to the first sliding seat 2 via a rotating shaft 10. An elastic member 63 is further disposed between the operating member 62 and the first sliding seat 2 for providing an elastic force to keep the operating member 62 always retained in the locking groove 611. By providing the multi-stage locking groove 611, the position of the first sliding seat 2 relative to the upright body 11 can be adjusted, thereby adjusting the degree of expansion of the upper end of the first support rod 3.

[0059] The lower support assembly includes a second sliding seat 7 , a plurality of second support rods 8 , and a plurality of second matching rods 9 .

[0060] The second sliding seat 7 is slidably mounted on the upright body 11. Specifically, in one embodiment, the second sliding seat 7 is sleeved on the upright body 11 and can slide up and down relative to the upright body 11. In one embodiment, the second sliding seat 7 includes a plurality of second sliding portions 71 extending horizontally from the inside to the outside. The plurality of second sliding portions 71 are rotationally symmetrically arranged about the horizontal center point of the second sliding seat 7. Each second sliding portion 71 has a first side 14 and a second side 15 that are oppositely arranged in the horizontal direction. The first side 14 and the second side 15 are unequal in length. In one embodiment, four second sliding portions 71 are provided. The first side 14 of each second sliding portion 71 is approximately half the length of the second side 15. The second fixing portion 131 is located between two adjacent second sliding portions 71 in the horizontal direction.

[0061] The lower end of each second support rod 8 is rotatably connected to a corresponding second sliding portion 71. Specifically, the lower end of each second support rod 8 is rotatably connected to a corresponding second sliding portion 71 via a rotating shaft 10. The lower end of each second support rod 8 is used to support the work surface. In one embodiment, four second support rods 8 are provided. In other embodiments, the number of second support rods 8 can be set to any number, such as 3, 5, 6, or 7. In one embodiment, the rotation axes of the plurality of second support rods 8 relative to the second sliding seat 7 are all located on the same horizontal plane. In one embodiment, the plurality of second support rods 8 are of equal length.

[0062] The lower end of each second cooperating rod 9 is rotatably connected to a corresponding second fixing portion 131, and the upper end of each second cooperating rod 9 is rotatably connected to the middle portion of a corresponding second support rod 8. Specifically, the lower end of each second cooperating rod 9 can be rotatably connected to a corresponding second fixing portion 131 via a rotating shaft 10, and the upper end of each second cooperating rod 9 can be rotatably connected to the middle portion of a corresponding second support rod 8 via a rotating shaft 10. The number of second cooperating rods 9 corresponds to the number of second support rods 8. In one embodiment, four second cooperating rods 9 are provided. In other embodiments, the number of second cooperating rods 9 can also be set to any number, such as 3, 5, 6, or 7. In one embodiment, the rotation axes of the multiple second cooperating rods 9 relative to the second fixing base 13 are all located on the same horizontal plane. In one embodiment, the multiple second cooperating rods 9 are equal in length.

[0063] In one embodiment, the second fixed seat 13 has a second fixed seat limiting portion 17. When the folding table frame is in the unfolded state, the second fixed seat limiting portion 17 is used to limit the second cooperating rod 9 from rotating downward relative to the second fixed seat 13. Specifically, in one embodiment, the cross-section of each second fixed portion 131 is U-shaped, and the lower end of the second cooperating rod 9 is inserted in the U-shaped space. When the folding table frame is in the unfolded state, the bottom of the U-shape is the second fixed seat limiting portion 17, which prevents the second cooperating rod 9 from rotating further downward. When the folding table carries heavier items, the second fixed seat limiting portion 17 can provide support, further enhancing the reliability of the folding table frame.

[0064] In one embodiment, the second sliding seat 7 has a second sliding seat stopper 72. When the folding table frame is in the unfolded state, the second sliding seat stopper 72 is used to limit the second support rod 8 from rotating upward relative to the second sliding seat 7. Specifically, in one embodiment, the cross-section of each second sliding portion 71 is arranged in an inverted U-shape, and the upper end of the second support rod 8 is inserted into the space of the inverted U-shape. When the folding table frame is in the unfolded state, the top of the inverted U-shape serves as the second sliding seat stopper 72, preventing the second support rod 8 from rotating further upward. When the folding table is carrying heavy items, the second sliding seat stopper 72 can provide support, further enhancing the reliability of the folding table frame.

[0065] In one embodiment, the upper support assembly and the lower support assembly are arranged symmetrically with respect to the horizontal centerline of the upright 1. Thus, the upper and lower support assemblies can be used interchangeably. That is, when the folding table frame is inverted, the upper support assembly is located at the bottom and can be used to support the use surface, while the lower support assembly is located at the top and can be used to support the tabletop 5. This enriches the use scenarios, avoids misoperation, and makes the folding table frame of the present invention more convenient to use.

[0066] The following describes the operating principle of the folding table frame of the present invention:

[0067] like Figures 1 to 5When the folding table frame is in the unfolded state, the first support rod 3 extends upward from the inside to the outside, and the first matching rod 4 extends downward from the inside to the outside. The first support rod 3 is unfolded relative to the vertical rod 1, and the first matching rod 4 is unfolded relative to the vertical rod. The upper ends of multiple first support rods 3 are higher than the upper ends of the vertical rod 1, and the upper ends of multiple first support rods 3 are located in the same horizontal plane, which is convenient for setting the table top 5 so that the table top 5 will not tilt. The first fixed seat limiting portion 16 is abutted against the first matching rod 4, and the first sliding seat limiting portion 16 is abutted against the first support rod 3. The second support rod 8 extends downward from the inside to the outside, and the second matching rod 9 extends upward from the inside to the outside. The second support rod 8 is unfolded relative to the vertical rod 1, and the second matching rod 9 is unfolded relative to the vertical rod 1. The lower ends of multiple second support rods 8 are lower than the lower ends of the vertical rod 1, and the lower ends of multiple second support rods 8 are located in the same horizontal plane, which is convenient for placing the folding table frame so that it will not tilt. The second fixed seat limiting portion 17 is abutted against the second matching rod 9, and the second sliding seat limiting portion 72 is abutted against the second support rod 8.

[0068] like Figures 7-10 As shown, when in the folded state, the first support rod 3 is close to the upright rod 1, the first matching rod 4 is close to the upright rod 1, the upper ends of the plurality of first support rods 3 are located in the same horizontal plane, and the upper ends of the plurality of first support rods 3 are higher than the upper ends of the upright rod 1. In other embodiments, in order to further limit the folding volume of the folding table frame, it can also be set that when in the folded state, the upper ends of the plurality of first support rods 3 are lower than the upper ends of the upright rod 1, the second support rod 3 is close to the upright rod 1, the second matching rod 4 is close to the upright rod 1, the lower ends of the plurality of second support rods 8 are located in the same horizontal plane, and the lower ends of the plurality of second support rods 8 are lower than the lower ends of the upright rod 1. In other embodiments, in order to further limit the folding volume of the folding table frame, it can also be set that when in the folded state, the lower ends of the plurality of second support rods 8 are higher than the upper ends of the upright rod 1. Figures 7-8 As shown, the first sliding seat 2 and the second sliding seat 7 are arranged very close to each other in order to shorten the folding height of the folding table frame as much as possible. Since the first fixing portion 121 is located between two adjacent first sliding portions 21 in the horizontal direction, the first matching rod 4 is located between two adjacent first support rods 3 in the horizontal direction. Since the first side 14 of each first fixing portion 121 is approximately half the length of the second side 15, the first fixing seat 12 can be rotated with the first matching rod 4 while reserving a certain amount of space for the first support rod 3. The entire first fixing seat 12 is compactly designed. Similarly, the entire first sliding seat 2, the second fixing seat 13, and the second sliding seat 7 all adopt a similar design, further ensuring the compact folding volume of the folding table frame.

[0069] When switching from the unfolded state to the folded state, the user presses the operating member 62, and the operating member 62 disengages from the locking groove 611. At this time, the locking device is unlocked, and the first sliding seat 2 slides from top to bottom relative to the vertical rod 1, driving the first support rod 3 to slide and retract from top to bottom relative to the vertical rod 1, and the second sliding seat 2 slides from bottom to top relative to the vertical rod, driving the second support rod 8 to slide and retract from bottom to top relative to the vertical rod 1.

[0070] In the description of the present invention, the directions involved, such as "front", "back", "left", "right", "up", "down", "inside", and "outside", are defined with reference to the directions observed by the user when using the folding table, i.e. Figure 3 As shown, the left side of the figure is "left", the right side of the figure is "right", the upper side of the figure is "up", the lower side of the figure is "down", the directions perpendicular to the viewing angle of the figure are "front" and "back", the direction closer to the vertical pole is "inside", and the direction farther from the vertical pole is "outside". The definitions of the above directions are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In the description of the present invention, the "rotational connection" involved refers to a pivot connection.

[0071] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A folding table frame having an unfolded state and a folded state, characterized in that: The folding table frame comprises: A vertical pole extending in an up-down direction; a first sliding seat, the first sliding seat being slidably disposed on the vertical rod; a plurality of first support rods, wherein the lower end of each first support rod is rotatably connected to the first sliding seat, and the upper end of each first support rod is used to support the desktop; a plurality of first cooperating rods, wherein the upper end of each first cooperating rod is rotatably connected to the upper end of the vertical rod, and the lower end of each first cooperating rod is rotatably connected to the middle portion of a corresponding first support rod; When in the expanded state, the first support rod extends upward from the inside to the outside, the first support rod is expanded relative to the vertical rod, and the first matching rod is expanded relative to the vertical rod. When in the folded state, the first support rod is close to the vertical rod, and the first matching rod is close to the vertical rod. When switching from the expanded state to the folded state, the first sliding seat slides from top to bottom relative to the vertical rod, driving the first support rod to slide and retract from top to bottom relative to the vertical rod.

2. The folding table frame according to claim 1, characterized in that: The vertical pole includes a vertical pole body and a first fixing seat arranged at the upper end of the vertical pole body, and the upper end of each first matching rod is rotatably connected to the first fixing seat.

3. The folding table frame according to claim 2, characterized in that: The first fixed seat includes a plurality of first fixed portions extending from the inside to the outside in the horizontal direction, and the plurality of first fixed portions are rotationally symmetrically arranged around the horizontal center point of the first fixed seat, and each of the first fixed portions has a first side and a second side arranged opposite to each other in the horizontal direction, and the first side and the second side are unequal in length, and / or the first sliding seat includes a plurality of first sliding portions extending from the inside to the outside in the horizontal direction, and the plurality of first sliding portions are rotationally symmetrically arranged around the horizontal center point of the first sliding seat, and each of the first sliding portions has a first side and a second side arranged opposite to each other in the horizontal direction, and the first side and the second side are unequal in length.

4. The folding table frame according to claim 3, characterized in that: In the horizontal direction, the first fixing portion is located between two adjacent first sliding portions.

5. The folding table frame according to claim 2, characterized in that: The first fixed seat has a first fixed seat limiting portion, and when the folding table frame is in the unfolded state, the first fixed seat limiting portion is used to limit the first matching rod from rotating upward relative to the first fixed seat, and / or the first sliding seat has a first sliding seat limiting portion, and when the folding table frame is in the unfolded state, the first sliding seat limiting portion is used to limit the first support rod from rotating downward relative to the first sliding seat.

6. The folding table frame according to claim 1, characterized in that: When in the expanded state, upper ends of the plurality of first support rods are located in the same horizontal plane, and / or, when in the folded state, upper ends of the plurality of first support rods are located in the same horizontal plane.

7. The folding table frame according to claim 1, characterized in that: The rotation axis lines of the plurality of first support rods rotating relative to the first sliding seat are all located on the same horizontal plane.

8. The folding table frame according to claim 1, characterized in that: When in the expanded state, the upper ends of the plurality of first support rods are higher than the upper ends of the upright poles, and / or, when in the folded state, the upper ends of the plurality of first support rods are higher than the upper ends of the upright poles.

9. The folding table frame according to claim 1, characterized in that: It also includes a locking device, which is used to lock the first sliding seat and the vertical rod relative to each other.

10. The folding table frame according to any one of claims 1 to 9, characterized in that: The folding table frame also includes: a second sliding seat, the second sliding seat being slidably disposed on the vertical rod; a plurality of second support rods, wherein the upper end of each second support rod is rotatably connected to the second sliding seat, and the lower end of each second support rod is used to support the use surface; a plurality of second cooperating rods, wherein the lower end of each second cooperating rod is rotatably connected to the lower end of the vertical rod, and the upper end of each second cooperating rod is rotatably connected to the middle portion of a corresponding second support rod; When in the expanded state, the second support rod extends downward from the inside to the outside, the second support rod is expanded relative to the vertical rod, and the second matching rod is expanded relative to the vertical rod. When in the folded state, the second support rod is close to the vertical rod, and the second matching rod is close to the vertical rod. When switching from the expanded state to the folded state, the second sliding seat slides from bottom to top relative to the vertical rod, driving the second support rod to slide and retract from bottom to top relative to the vertical rod.

11. The folding table frame according to claim 10, characterized in that: The first sliding seat, multiple first support rods, and multiple first cooperating rods constitute an upper support assembly, and the second sliding seat, multiple second support rods, and multiple second cooperating rods constitute a lower support assembly. The upper support assembly and the lower support assembly are axially symmetrically arranged relative to the horizontal center line of the vertical pole.

12. The folding table frame according to claim 10, characterized in that: When in the expanded state, the lower ends of the plurality of second support rods are located in the same horizontal plane, and / or, when in the folded state, the lower ends of the plurality of second support rods are located in the same horizontal plane.

13. The folding table frame according to claim 10, characterized in that: The rotation axis lines of the plurality of second support rods rotating relative to the second sliding seat are all located on the same horizontal plane.

14. The folding table frame according to claim 10, characterized in that: When in the expanded state, the lower ends of the plurality of second support rods are lower than the lower ends of the upright poles, and / or, when in the folded state, the lower ends of the plurality of second support rods are lower than the lower ends of the upright poles.

15. The folding table frame according to claim 10, characterized in that: The vertical rod includes a vertical rod body and a second fixing seat arranged at the lower end of the vertical rod body, and the lower end of each second matching rod is rotatably connected to the second fixing seat.

16. The folding table frame according to claim 15, characterized in that: The second fixed seat includes a plurality of second fixed parts extending from the inside to the outside in the horizontal direction, and the plurality of second fixed parts are rotationally symmetrically arranged around the center point of the second fixed seat in the horizontal direction, and each second fixed part has a first side and a second side arranged opposite to each other in the horizontal direction, and the lengths of the first side and the second side are unequal, and / or, the second sliding seat includes a plurality of second sliding parts extending from the inside to the outside in the horizontal direction, and the plurality of second sliding parts are rotationally symmetrically arranged around the center point of the second sliding seat in the horizontal direction, and each second sliding part has a first side and a second side arranged opposite to each other in the horizontal direction, and the lengths of the first side and the second side are unequal.

17. The folding table frame according to claim 16, characterized in that: In the horizontal direction, the second fixing portion is located between two adjacent second sliding portions.

18. A folding table, characterized by: The folding table frame comprises the folding table frame according to any one of claims 1 to 17 and a table top arranged at the upper ends of the plurality of first support rods.

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