A support frame

Abstract

The embodiment of the application provides a support frame, and belongs to the technical field of furniture. In the unfolded state, the opposite sides in the longitudinal direction and the opposite sides in the transverse direction are respectively provided with outer rods extending in the transverse direction and outer rods extending in the longitudinal direction, a plurality of first support pieces are respectively rotationally connected with adjacent two first sub-rods of the same outer rod, a plurality of second support pieces are respectively rotationally connected with two outer rods extending in different directions, and the rotation center lines of the rotation of the first sub-rod relative to the first support piece and the rotation of the first sub-rod relative to the second support piece are respectively intersected with the extension direction of the corresponding first sub-rod and the up-down direction. The rotation center line of the rotation of the first sub-rod of the same outer rod relative to the corresponding first support piece is parallel to the rotation center line of the rotation relative to the corresponding second support piece, when the support frame is folded or unfolded, the first sub-rod is simultaneously rotated relative to the first support piece and the second support piece, the folding or unfolding of the outer rod can be completed through one operation, and the folding or unfolding of the support frame is facilitated.

Description

Technical Field

[0001] This application relates to the field of furniture technology, and more particularly to a support frame. Background Technology

[0002] Some furniture, such as beds, chairs, or tables, often include support frames. These frames provide support and are relatively large. To reduce packaging volume, lower transportation costs, and make storage more convenient for consumers in their daily lives, support frames with folding functions are gradually becoming a very important part of the furniture market.

[0003] In related technologies, the support frame is inconvenient to fold or unfold. Summary of the Invention

[0004] This application provides a support frame that facilitates folding or unfolding.

[0005] The technical solution of this application embodiment is implemented as follows: This application provides a support frame, including: The support frame includes multiple outer rods. In the unfolded state, the support frame has outer rods extending laterally on opposite sides along the longitudinal direction. In the unfolded state, the support frame has outer rods extending longitudinally on opposite sides along the lateral direction. The longitudinal direction intersects the lateral direction, and the vertical direction intersects the longitudinal direction and the lateral direction, respectively. The outer rods include multiple first sub-rods arranged along the corresponding extension direction of the outer rod in the unfolded state. The support member is a plurality of supports, including a plurality of first supports and a plurality of second supports. In the unfolded state, the first supports are rotatably connected to two adjacent first sub-rods of the same outer rod on opposite sides along the horizontal or vertical direction. In the unfolded state, the second supports are rotatably connected to two outer rods on one side along the horizontal direction and one side along the vertical direction. The rotation center line of the first sub-rod relative to the first support intersects the extension direction of the first sub-rod and the vertical direction, respectively. The rotation center line of the first sub-rod relative to the second support intersects the extension direction of the first sub-rod and the vertical direction, respectively, so that the support frame can be folded or unfolded.

[0006] In some embodiments, the support includes a connector and a pivot, the connector having a connecting groove, the first sub-rod portion being located within the connecting groove, and the pivot penetrating the groove wall and the first sub-rod along the rotation center line of the corresponding first sub-rod.

[0007] In some embodiments, the support member further includes at least one inner rod, which extends along the transverse or longitudinal direction in the unfolded state. The inner rod is located within the area enclosed by the outer rod in the unfolded state. The inner rod includes a plurality of second sub-rods arranged along the extension direction of the inner rod in the unfolded state. The plurality of support members further includes a third support member, wherein the ends of two adjacent second sub-rods of the same inner rod that are close to each other are disposed on the third support member, and the two ends of the inner rod are respectively rotatably connected to the corresponding first support member, and the rotation center line of the corresponding second sub-rod relative to the first support member intersects the extension direction and the vertical direction of the corresponding second sub-rod.

[0008] In some embodiments, the two adjacent second sub-rods of at least one inner rod are respectively rotatably connected to the third support member at their close ends, and the rotation center lines of the corresponding second sub-rods relative to the third support member intersect the extension direction and the vertical direction of the corresponding second sub-rods respectively.

[0009] In some embodiments, all the inner rods extend in the same direction in the unfolded state, and the second sub-rod is a telescopic rod that extends or retracts in the unfolded and folded states.

[0010] In some embodiments, the number of inner rods is at least two, one of which is an inner crossbar that extends laterally in the unfolded state, and the other is an inner longitudinal rod that extends longitudinally in the unfolded state. The second sub-rod of one of the inner crossbar and the inner longitudinal rod is a telescopic rod, and the length of the inner crossbar is less than the length of the inner longitudinal rod. When the second sub-rod of the inner crossbar is a telescopic rod, the second sub-rod of the inner crossbar is in a retracted state when it is in the unfolded state, and in an extended state when it is in the folded state; When the second sub-rod of the inner longitudinal rod is a telescopic rod, the second sub-rod of the inner longitudinal rod is in the extended state when unfolded, and in the retracted state when folded.

[0011] In some embodiments, the telescopic rod includes a telescopic cylinder and a telescopic member, one of which is rotatably connected to the first support member, and the other of which is rotatably connected to the third support member. The telescopic member is partially located inside the telescopic cylinder and moves telescopically along the extension direction corresponding to the second sub-rod. The telescopic cylinder has an inwardly protruding first protrusion, and the telescopic member has an outwardly protruding second protrusion located inside the telescopic cylinder. The first protrusion can abut against the second protrusion along the extension direction corresponding to the second sub-rod to prevent the telescopic member from disengaging from the telescopic cylinder.

[0012] In some embodiments, the number of inner rods is at least two, and the at least two inner rods are arranged crosswise in the unfolded state. The two adjacent second sub-rods of one inner rod are detachably connected to the third support member at their close ends, and the two adjacent second sub-rods of the other inner rod are rotatably connected to the third support member at their close ends.

[0013] In some embodiments, the third support member includes a connector and a support foot located below the connector, the support foot being detachably connected to the connector, and the second sub-rod of the inner rod being disposed on the connector.

[0014] In some embodiments, the support frame further includes a locking member disposed on the carrier. The support member has an abutment portion. When the support frame is in an extended state, the locking member can move relative to the carrier to a locked position that locks the abutment portion. The portion of the locking member in the locked position is located on the side of the abutment portion away from the carrier. When the locking member is in the locked position, the abutment portion can abut against the locking member to restrict the carrier from rotating relative to the support member.

[0015] In some embodiments, the support member further includes at least one inner rod, which extends along the transverse or longitudinal direction in the unfolded state. The inner rod is located within the area enclosed by the outer rod in the unfolded state. The inner rod includes a plurality of second sub-rods arranged along the extension direction of the inner rod in the unfolded state. The plurality of support members further includes a third support member. Two adjacent second sub-rods of the same inner rod are disposed at one end close to each other on the third support member. The two ends of the inner rod are respectively rotatably connected to the corresponding first support member. The rotation center line of the corresponding second sub-rod relative to the first support member intersects the extension direction and the vertical direction of the corresponding second sub-rod. The locking member is disposed on the second sub-rod.

[0016] In some embodiments, the rotation center line of the second sub-rod rotating about the support member corresponding to the abutment portion is a preset center line. When the support frame is in the unfolded state, the locking member can move relative to the abutment portion in the up-down direction to switch between the locked position and the locked position. The locking member in the locked position can be spaced apart from the abutment portion during rotation about the preset center line. The locking member disposed on the second sub-rod can move into or out of the locked position from one side of the abutment portion along the circumference of the preset center line.

[0017] In some embodiments, the abutment portion has a clearance groove, the opening of which faces the third support member along the extension direction corresponding to the second sub-rod. The locking member disposed on the second sub-rod moves into or out of the clearance groove along the circumferential direction corresponding to the preset center line. When the locking member is in the locked position, the locking member portion is located on opposite sides of the clearance groove along the extension direction corresponding to the preset center line.

[0018] In some embodiments, the first support member includes a first limiting portion located above the first sub-rod to limit rotation of the first sub-rod relative to the first support member; and / or, The second support member includes a second limiting part located below the first sub-rod to limit the rotation of the first sub-rod relative to the second support member.

[0019] In some embodiments, the support frame further includes a reinforcing rib. Among the two first sub-rods connected to the same second support member, one end of the reinforcing rib is rotatably connected to one of the first sub-rods, and the other end of the reinforcing rib is detachably connected to the other first sub-rod. When the support frame is in the unfolded state, the other end of the reinforcing rib is installed on the other first sub-rod.

[0020] The embodiments of this application have the following beneficial effects: In this embodiment of the support frame, the rotation center lines of the corresponding first sub-rods relative to the first support member intersect the extension direction and the vertical direction of the corresponding first sub-rods, respectively. Similarly, the rotation center lines of the corresponding first sub-rods relative to the second support member intersect the extension direction and the vertical direction of the corresponding first sub-rods, respectively. This allows the support frame to be folded or unfolded. The rotation center lines of the first sub-rods of the same outer rod relative to the corresponding first support member are parallel to the rotation center lines of the first sub-rods relative to the corresponding second support member. When the support frame is folded or unfolded, the first sub-rods can rotate simultaneously relative to the first and second support members, causing the two ends of the outer rods along the extension direction of the corresponding outer rods to move closer to or further away from each other. This allows the folding or unfolding of the outer rods of the support frame to be completed in one operation, eliminating the need for multiple operations on the outer rods of the support frame in sequence. This facilitates the folding or unfolding of the support frame and makes it convenient to use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the bed frame provided in the embodiment of this application in its unfolded state; Figure 2 yes Figure 1 Sectional view at point AA; Figure 3 for Figure 2 Enlarged view at point B; Figure 4 This is a structural schematic diagram of the bed frame provided in the embodiment of this application in its unfolded state from another perspective; Figure 5 This is a schematic diagram of the bed frame provided in the embodiment of this application in a semi-folded state; Figure 6 yes Figure 5 Sectional view at CC; Figure 7 yes Figure 6 Enlarged view at point D; Figure 8 This is a schematic diagram of the bed frame provided in the embodiment of this application in a semi-folded state from another perspective; Figure 9 yes Figure 8 Enlarged view at point E in the middle; Figure 10 This is a schematic diagram of the bed frame provided in the embodiment of this application in a folded state.

[0022] Explanation of reference numerals in the attached figures 1. Support component; 11. First support component; 111. First limiting part; 12. Second support component; 121. Second limiting part; 13. Third support component; 131. Support foot; 132. Third limiting part; 14. Connecting component; 141. Connecting groove; 15. Rotating shaft; 16. Abutment part; 161. Clearance groove; 2. Bearing component; 21. Outer rod; 211. First sub-rod; 212. Outer longitudinal rod; 213. Outer transverse rod; 22. Inner rod; 221. Second sub-rod; 2211. Preset center line; 222. Inner longitudinal rod; 223. Inner transverse rod; 224. Telescopic cylinder; 2241. First protrusion; 225. Telescopic component; 2251. Second protrusion; 3. Locking component; 4. Reinforcing rib. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0025] In the following description, the terms "first, second, third" are used merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first, second, third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0026] Unless otherwise defined, all technical and scientific terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the embodiments of this application is for the purpose of describing the embodiments of this application only and is not intended to limit this application.

[0027] In related technologies, a support frame includes a load-bearing component and a support component. The load-bearing component includes multiple outer rods. In the unfolded state, the support frame has outer rods extending laterally on opposite sides along the longitudinal direction, and outer rods extending longitudinally on opposite sides along the transverse direction. Each outer rod includes multiple first sub-rods arranged along their corresponding extension directions in the unfolded state. In the unfolded state, the first support component is rotatably connected to two first sub-rods of the same outer rod on opposite sides along the transverse or longitudinal direction. In the unfolded state, the second support component is rotatably connected to two outer rods on one side along the transverse direction and one side along the longitudinal direction. The rotation center lines of some first sub-rods relative to the first support component intersect the extension direction and the vertical direction of the first sub-rod, respectively. The rotation center lines of some first sub-rods relative to the first support component are parallel to the extension direction and the vertical direction of the first sub-rod, respectively. The rotation center lines of corresponding first sub-rods relative to the second support component are parallel to the extension direction and the vertical direction of the first sub-rod, respectively. The rotation center line of the first sub-rod of a portion of the outer frame, relative to the first support member, intersects with the rotation center line of the second support member. Therefore, it is necessary to first rotate part of the first sub-rod around the rotation center line parallel to the vertical direction to fold or unfold part of the support frame. Then, another portion of the first sub-rod must be rotated around the rotation center line intersecting the vertical direction to fold or unfold the remaining part of the support frame. When folding or unfolding the support frame, multiple operations are required on the outer frame, rotating the first sub-rod from multiple directions to fully fold or unfold the outer frame. It cannot be completed in a single operation, making folding or unfolding the support frame inconvenient. Furthermore, this structure has a specific sequence for folding or unfolding; if the sequence is incorrect, folding or unfolding will not be successful, causing inconvenience to the user.

[0028] This application provides a support frame; please refer to [link / reference]. Figures 1-10The support frame includes a load-bearing member 2 and a support member 1. The load-bearing member 2 includes multiple outer rods 21. In the unfolded state, the support frame has outer rods 21 extending laterally on opposite sides along the longitudinal direction. In the unfolded state, the support frame has outer rods 21 extending longitudinally on opposite sides along the transverse direction. The longitudinal direction intersects the transverse direction, and the vertical direction intersects the longitudinal and transverse directions respectively. The outer rods 21 include multiple first sub-rods 211 arranged along the corresponding extension direction of the outer rod 21 in the unfolded state. The number of support members 1 is multiple, and the multiple support members 1 include multiple first support members 11 and multiple second support members 12. 1. In the unfolded state, the first support member 12 is rotatably connected to two adjacent first sub-rods 211 of the same outer rod 21 on opposite sides in the horizontal or vertical direction. In the unfolded state, the second support member 12 is rotatably connected to two outer rods 21 on one side in the horizontal direction and one side in the vertical direction. The rotation center line of the first sub-rod 211 relative to the first support member 11 intersects the extension direction and the vertical direction of the corresponding first sub-rod 211. The rotation center line of the first sub-rod 211 relative to the second support member 12 intersects the extension direction and the vertical direction of the corresponding first sub-rod 211, so that the support frame can be folded or unfolded.

[0029] For example, the support frame can be a bed frame.

[0030] It should be noted that the multiple support members 1 including the first support member 11 and the second support member 12 means that among the multiple support members 1, some support members 1 are the first support member 11 and some support members 1 are the second support member 12.

[0031] It should be noted that the second support member 12 being rotatably connected to the two outer rods 21 along one side in the horizontal direction and one side in the vertical direction when in the unfolded state means that the second support member 12 being rotatably connected to the first sub-rod 211 of the two different outer rods 21 along one side in the horizontal direction and one side in the vertical direction when in the unfolded state.

[0032] It should be noted that the intersection of the horizontal and vertical directions means that the horizontal and vertical directions are not parallel.

[0033] It should be noted that the vertical direction intersecting the horizontal and vertical directions respectively means that the vertical direction is not parallel to the horizontal direction, and the vertical direction is not parallel to the vertical direction.

[0034] For example, the vertical and horizontal directions intersect each other but are not coplanar.

[0035] For example, please refer to Figure 1 In the unfolded state, the outer rod 21 extending laterally is the outer horizontal rod 213, and in the unfolded state, the outer rod 21 extending longitudinally is the outer vertical rod 212.

[0036] For example, please refer to Figure 1In the unfolded state, some of the first support members 11 are rotatably connected to two adjacent first sub-rods 211 of the same outer crossbar 213 on opposite sides along the transverse direction; in the unfolded state, another part of the first support members 11 are rotatably connected to two adjacent first sub-rods 211 of the same outer longitudinal bar 212 on opposite sides along the longitudinal direction.

[0037] It should be noted that the first support member 11 rotatably connected to the outer longitudinal rod 212 and the first support member 11 rotatably connected to the outer transverse rod 213 are not the same.

[0038] For example, please refer to Figure 1 In the unfolded state, the second support member 12 is rotatably connected to an outer crossbar 213 on one side along the lateral direction, and the second support member 12 is rotatably connected to an outer longitudinal bar 212 on one side along the longitudinal direction.

[0039] For example, the rotation center line of the outer crossbar 213 relative to the first support member 11 intersects the horizontal and vertical directions respectively.

[0040] For example, the rotation center line of the outer longitudinal rod 212 relative to the second support member 12 intersects the longitudinal and vertical directions, respectively.

[0041] For example, there are four outer rods 21.

[0042] For example, the outer rod 21 includes two first sub-rods 211.

[0043] For example, the number of first support members 11 is four.

[0044] For example, the number of second support members 12 is four.

[0045] It should be noted that when the first sub-rod 211 rotates relative to the first support member 11 and the second support member 12, the corresponding first support member 11 and the corresponding second support member 12 move relative to each other in the vertical direction.

[0046] For example, when the support frame is folded, the first sub-rod 211 rotates relative to the first support member 11 and the second support member 12, and the first support member 11 moves upward relative to the second support member 12.

[0047] For example, when the support frame is folded, the first sub-rod 211 rotates relative to the first support member 11 and the second support member 12, and the first support member 11 moves downward relative to the second support member 12.

[0048] For example, the rotation center line of the first sub-rod 211 relative to the first support member 11 is perpendicular to the extension direction and the vertical direction of the first sub-rod 211, respectively.

[0049] For example, the rotation center line of the first sub-rod 211 relative to the second support member 12 is perpendicular to the extension direction and the vertical direction of the first sub-rod 211, respectively.

[0050] For example, the rotation center line of the outer crossbar 213 relative to the first support member 11 is parallel to the rotation center line of the outer crossbar 213 relative to the second support member 12.

[0051] For example, the rotation center line of the outer longitudinal rod 212 relative to the first support member 11 is parallel to the rotation center line of the outer longitudinal rod 212 relative to the second support member 12.

[0052] In this embodiment, the rotation center line of the first sub-rod 211 relative to the first support member 11 intersects the extension direction and the vertical direction of the first sub-rod 211, respectively. The rotation center line of the first sub-rod 211 relative to the second support member 12 intersects the extension direction and the vertical direction of the first sub-rod 211, respectively, so that the support frame can be folded or unfolded. The rotation center line of the first sub-rod 211 of the same outer rod 21 relative to the corresponding first support member 11 is parallel to the rotation center line of the first sub-rod 211 relative to the corresponding second support member 12. The rotation center lines of the two first sub-rods 211 rotatably connected to the same first support member 11 are parallel. When the support frame is folded or unfolded, the first sub-rod 211 can rotate simultaneously relative to the first support member 11 and the second support member 12, so that the two ends of the outer rod 21 along the extension direction of the corresponding outer rod 21 move closer or further away from each other. The folding or unfolding of the outer rod 21 of the support frame can be completed in one operation, without the need for multiple operations on the outer rod 21 of the support frame in sequence, which facilitates the folding or unfolding of the support frame and makes the support frame easy to use.

[0053] For ease of explanation, the vertical direction is shown as arrow R1 in the figure, the horizontal direction is shown as arrow R2 in the figure, and the up and down direction is shown as arrow R3 in the figure.

[0054] For example, the horizontal direction is perpendicular to the vertical direction.

[0055] For example, the vertical direction is perpendicular to the horizontal direction.

[0056] For example, the vertical direction is perpendicular to the longitudinal direction.

[0057] For example, the support frame can be a bed frame, with the horizontal direction being the width direction when the bed frame is in the unfolded state, the vertical direction being the length direction when the bed frame is in the unfolded state, and the vertical direction being the height direction when the bed frame is in the unfolded state.

[0058] In some embodiments, please refer to Figure 3 , Figure 7 , Figure 9 and Figure 10The support member 1 includes a connector 14 and a rotating shaft 15. The connector 14 has a connecting groove 141. The first sub-rod 211 is located in the connecting groove 141. The rotating shaft 15 passes through the groove wall of the connecting groove 141 and the first sub-rod 211 along the rotation center line of the corresponding first sub-rod 211.

[0059] It should be noted that the first support member 11 includes a connector 14 and a rotating shaft 15. The first support member 11 is provided with a connector 14 and a rotating shaft 15 on opposite sides along the longitudinal or transverse direction.

[0060] It should be noted that the second support member 12 includes a connector 14 and a rotating shaft 15. The second support member 12 is provided with a connector 14 and a rotating shaft 15 on one side along the longitudinal direction and the other side along the transverse direction, respectively.

[0061] For example, the pivot 15 is a bolt or rivet.

[0062] For example, the pivot 15 of the first support member 11 is a bolt. The bolt has high structural strength, which is beneficial for the pivot 15 of the first support member 11 to bear force.

[0063] For example, the first sub-rod 211 is provided with groove walls on opposite sides along the corresponding rotation center line.

[0064] For example, the pivot 15 of the first support member 11 is located on the same horizontal plane.

[0065] For example, the pivot 15 of the second support member 12 is located on the same horizontal plane.

[0066] In this embodiment, the connector 14 has a connecting groove 141, the first sub-rod 211 is partially located in the connecting groove 141, and the rotating shaft 15 passes through the groove wall of the connecting groove 141 and the first sub-rod 211 along the rotation center line of the corresponding first sub-rod 211, so as to realize the rotation of the first sub-rod 211 relative to the first support member 11 or the second support member 12.

[0067] It is understood that the connector 14 is not limited to having a connecting groove 141, and the first sub-rod 211 is not limited to being partially located within the connecting groove 141. Exemplarily, the first sub-rod 211 has a connecting groove 141, and the connector 14 is partially located within the connecting groove 141.

[0068] In some embodiments, please refer to Figures 1-10The support member 2 also includes at least one inner rod 22, which extends laterally or longitudinally in the unfolded state. The inner rod 22 is located within the area enclosed by the outer rod 21 in the unfolded state. The inner rod 22 includes a plurality of second sub-rods 221 arranged along the extension direction of the inner rod 22 in the unfolded state. The multiple support members 1 also include a third support member 13. The ends of two adjacent second sub-rods 221 of the same inner rod 22 that are close to each other are disposed on the third support member 13. The two ends of the inner rod 22 are respectively rotatably connected to the corresponding first support member 11. The rotation center line of the corresponding second sub-rod 221 relative to the first support member 11 intersects the extension direction and the vertical direction of the corresponding second sub-rod 221.

[0069] It should be noted that when the second sub-rod 221 rotates relative to the first support member 11 and the third support member 13, the corresponding first support member 11 and the corresponding third support member 13 move relative to each other in the vertical direction.

[0070] For example, when the support frame is folded, the second sub-rod 221 rotates relative to the first support member 11 and the third support member 13, and the first support member 11 moves upward relative to the third support member 13.

[0071] For example, when the support frame is folded, the second sub-rod 221 rotates relative to the first support member 11 and the third support member 13, and the first support member 11 moves downward relative to the third support member 13.

[0072] For example, the inner rod 22 and the first sub-rod 211 are rotatably connected to the same first support member 11, and the rotation center line of the inner rod 22 relative to the first support member 11 is perpendicular to the rotation center line of the first sub-rod 211 relative to the first support member 11.

[0073] For example, the number of inner rods 22 is one.

[0074] For example, there are two inner rods 22.

[0075] For example, the inner rod 22 includes two second sub-rods 221.

[0076] For example, the first support member 11 includes three pivots 15.

[0077] For example, the rotation center line of the second sub-branch 221 of the inner crossbar 223 relative to the first support member 11 is parallel to the rotation center line of the first sub-branch 211 of the outer crossbar 213.

[0078] For example, the rotation center line of the second sub-rod 221 of the inner longitudinal rod 222 relative to the first support member 11 is parallel to the rotation center line of the first sub-rod 211 of the outer longitudinal rod 212.

[0079] In this embodiment, the two ends of the inner rod 22 are rotatably connected to the corresponding first support member 11. The rotation center line of the corresponding second sub-rod 221 relative to the first support member 11 intersects the extension direction and the vertical direction of the corresponding second sub-rod 221. The rotation center line of the second sub-rod 221 of the inner rod 22 relative to the first support member 11 is parallel to the rotation center line of the first sub-rod 211 parallel to the second sub-rod 221. When the support frame is folded or unfolded, during the rotation of the first sub-rod 211 relative to the first support member 11 and the second support member 12, the inner rod 22 is driven to rotate relative to the first support member 11, completing the folding or unfolding of the support frame. The outer rod 21 and the inner rod 22 of the support frame can be folded or unfolded together, eliminating the need to separately remove the inner rod 22 from the first support member 11 for separate folding. This reduces the number of steps required for folding or unfolding the support frame, making it easier to fold or unfold. The inner rod 22 can improve the structural strength of the support frame, allowing the support frame to balance structural strength and ease of folding.

[0080] It is understood that the two ends of the inner rod 22 are not limited to being rotatably connected to the corresponding first support member 11. For example, the two ends of the inner rod 22 are detachably connected to the corresponding first support member 11.

[0081] In some embodiments, please refer to Figures 1-10 At least one inner rod 22 has two adjacent second sub-rods 221 that are close to each other at their ends respectively connected to the third support member 13. The rotation center line of the corresponding second sub-rod 221 relative to the third support member 13 intersects the extension direction and the up and down direction of the corresponding second sub-rod 221 respectively.

[0082] For example, the third support member 13 includes a connector 14 and a rotating shaft 15. The connector 14 has a connecting groove 141, and the second sub-rod 221 is partially located in the connecting groove 141. The rotating shaft 15 passes through the groove wall of the connecting groove 141 and the second sub-rod 221 along the rotation center line of the corresponding second sub-rod 221.

[0083] For example, the third support member 13 is provided with a connector 14 and a pivot 15 on opposite sides along the transverse or longitudinal direction.

[0084] For example, the number of third support members 13 is one.

[0085] In this embodiment, at least one inner rod 22 has two adjacent second sub-rods 221 that are close to each other and are rotatably connected to the third support member 13. The rotation center line of the corresponding second sub-rod 221 relative to the third support member 13 intersects the extension direction and the up and down direction of the corresponding second sub-rod 221. When the support frame is folded or unfolded, during the process of rotating the first sub-rod 211 relative to the first support member 11 and the second support member 12, the inner rod 22 is driven to rotate relative to the first support member 11, and the second sub-rod 221 is driven to rotate relative to the third support member 13, thus completing the folding or unfolding of the support frame. During the folding or unfolding of the support frame, it is not necessary to operate the inner rod 22 and the third support member 13 separately, making the folding and unfolding of the support frame more convenient.

[0086] It is understood that, not limited to, the two adjacent second sub-stems 221 of at least one inner rod 22 are rotatably connected to the third support member 13 at their closest points. Exemplarily, the two adjacent second sub-stems 221 of all inner rods 22 are detachably connected to the third support member 13 at their closest points.

[0087] In some embodiments, all inner rods 22 extend in the same direction in the unfolded state, and the second sub-rod 221 is a telescopic rod that extends or retracts in the unfolded and folded states.

[0088] It should be noted that the extension or retraction in the unfolded and folded states means that the second sub-rod 221 can extend or retract during the unfolding and folding of the support frame.

[0089] For example, the number of inner rods 22 is one.

[0090] For example, there are at least two inner rods 22, and at least two inner rods 22 extend laterally.

[0091] For example, there are at least two inner rods 22, and at least two inner rods 22 extend longitudinally.

[0092] For example, when the support frame is a bed frame for a single bed, the support frame includes an inner rod 22.

[0093] In this embodiment, when the inner rod 22 extends longitudinally in the unfolded state (i.e., along the length of the support frame), the second sub-rod 221 is a telescopic rod and is in an extended state in the unfolded state, meaning it has a retractable stroke, which reduces the space occupied by the inner rod 22 after folding. When the inner rod 22 extends laterally in the unfolded state (i.e., along the width of the support frame), the second sub-rod 221 is a telescopic rod and is in a retracted state in the unfolded state, meaning it has an extended stroke, allowing for folding and unfolding without disassembling the inner rod 22, making it more convenient to use.

[0094] It is understood that the second sub-rod 221 is not limited to being a telescopic rod. Exemplarily, the length of the second sub-rod 221 is fixed.

[0095] In some embodiments, please refer to Figures 1-10 There are at least two inner rods 22, one of which is an inner horizontal rod 223, which extends laterally in the unfolded state. The other inner rod 22 is an inner vertical rod 222, which extends longitudinally in the unfolded state. The second sub-rod 221 of either the inner horizontal rod 223 or the inner vertical rod 222 is a telescopic rod. The length of the inner horizontal rod 223 is less than the length of the inner vertical rod 222. When the second sub-rod 221 of the inner horizontal rod 223 is a telescopic rod, the second sub-rod 221 of the inner horizontal rod 223 is in a retracted state in the unfolded state and in an extended state in the folded state. When the second sub-rod 221 of the inner vertical rod 222 is a telescopic rod, the second sub-rod 221 of the inner vertical rod 222 is in an extended state in the unfolded state and in a retracted state in the folded state.

[0096] For example, the second sub-rod 221 of one of the inner crossbar 223 and the inner longitudinal bar 222 is a telescopic rod, and the second sub-rod 221 of the other of the inner crossbar 223 and the inner longitudinal bar 222 has a fixed length.

[0097] For example, the second sub-bars 221 of the inner crossbar 223 and the inner longitudinal bar 222 are both telescopic bars.

[0098] For example, the third support member 13 is provided with a connector 14 and a pivot 15 on opposite sides along the transverse and longitudinal directions, respectively.

[0099] For example, when the support frame is a bed frame for a double bed, the support frame includes an inner longitudinal bar 222 and an inner transverse bar 223.

[0100] In this embodiment, the length of the inner crossbar 223 is less than the length of the inner longitudinal bar 222. The second sub-bar 221 of either the inner crossbar 223 or the inner longitudinal bar 222 is a telescopic bar. During the folding or unfolding of the support frame, the second sub-bar 221 of either the inner crossbar 223 or the inner longitudinal bar 222 can extend or retract to change its length, reducing interference during support frame folding due to the different lengths of the inner crossbar 223 and the inner longitudinal bar 222. When the second sub-bar 221 of the inner crossbar 223 is a telescopic bar, the second sub-bar 221 of the inner crossbar 223 is in a retracted state in the unfolded state and in an extended state in the folded state. The second sub-bar 221 has better structural strength in the retracted state, which is beneficial for improving the structural strength of the inner crossbar 223 in the unfolded state, allowing the support frame to balance structural strength and ease of folding. When the second sub-rod 221 of the inner longitudinal rod 222 is a telescopic rod, the second sub-rod 221 of the inner longitudinal rod 222 is in the extended state when unfolded and in the retracted state when folded. This helps to reduce the length of the second sub-rod 221 of the longer inner main rod in the folded state, and can reduce the space occupied by the inner longitudinal rod 222 after folding.

[0101] It is understood that the length of the inner crossbar 223 is not limited to being less than the length of the inner longitudinal bar 222. For example, the length of the inner crossbar 223 is equal to the length of the inner longitudinal bar 222.

[0102] It is understood that the second sub-bar 221 of one of the inner crossbar 223 and the inner longitudinal bar 222 is not limited to being a telescopic bar.

[0103] For example, when the length of the inner crossbar 223 is equal to the length of the inner longitudinal bar 222, the lengths of the inner longitudinal bar 222 and the inner crossbar 223 are fixed.

[0104] In some embodiments, please refer to Figure 3 and Figure 7 The telescopic rod includes a telescopic cylinder 224 and a telescopic member 225. One of the telescopic cylinder 224 and the telescopic member 225 is rotatably connected to a first support member 11, and the other of the telescopic cylinder 224 and the telescopic member 225 is rotatably connected to a third support member 13. The telescopic member 225 is partially located inside the telescopic cylinder 224 and moves telescopically along the extension direction of the corresponding second sub-rod 221. The telescopic cylinder 224 has an inwardly protruding first protrusion 2241, and the telescopic member 225 has an outwardly protruding second protrusion 2251. The second protrusion 2251 is located inside the telescopic cylinder 224. The first protrusion 2241 can abut against the second protrusion 2251 along the extension direction of the corresponding second sub-rod 221 to restrict the telescopic member 225 from disengaging from the telescopic cylinder 224.

[0105] It should be noted that the first protrusion 2241 protruding inward in the telescopic cylinder 224 means that the first protrusion 2241 protrudes radially toward the center of the telescopic cylinder 224.

[0106] It should be noted that the second protrusion 2251 protruding outward in the telescopic member 225 means that the second protrusion 2251 protrudes radially away from the center of the telescopic cylinder 224.

[0107] For example, the telescopic cylinder 224 is rotatably connected to the first support member 11, and the telescopic member 225 is rotatably connected to the third support member 13.

[0108] For example, the telescopic cylinder 224 is rotatably connected to the third support member 13, and the telescopic member 225 is rotatably connected to the first support member 11.

[0109] In this embodiment, the second protrusion 2251 is located inside the telescopic cylinder 224, and the first protrusion 2241 can abut against the second protrusion 2251 along the extension direction of the corresponding second sub-rod 221 to restrict the telescopic member 225 from disengaging from the telescopic cylinder 224. Through the abutting cooperation of the first protrusion 2241 and the second protrusion 2251, the telescopic member 225 is restricted from disengaging from the telescopic cylinder 224 when the telescopic rod extends to the limit distance.

[0110] In some embodiments, please refer to Figures 1-4 There are at least two inner rods 22, which are arranged crosswise in the unfolded state. The two adjacent second sub-rods 221 of one inner rod 22 are detachably connected to the third support member 13 at their close ends, and the two adjacent second sub-rods 221 of the other inner rod 22 are rotatably connected to the third support member 13 at their close ends.

[0111] For example, the two adjacent second sub-rods 221 of one inner rod 22 are engaged with the third support member 13 at their closest points.

[0112] For example, the ends of two adjacent second sub-branches 221 of one inner rod 22 that are close to each other are bolted to the third support member 13.

[0113] For example, the two adjacent second sub-branches 221 of one inner rod 22 are both inserted into the third support member 13 at their close ends.

[0114] For example, the connector 14 of the third support member 13, which is detachably connected to the second sub-rod 221, has a mounting groove with the opening facing upward. The second sub-rod 221, which is detachably connected to the third support member 13, has connecting portions protruding on opposite sides along the corresponding rotation center line. When the second sub-rod 221 is installed on the third support member 13, the connecting portions are located in the mounting groove.

[0115] For example, the third support member 13 has a connector 14 with a connecting groove 141, and the second sub-rod 221 is partially located in the connecting groove 141.

[0116] For example, the mounting groove is formed on the groove wall of the corresponding connecting groove 141, and the mounting groove communicates with the connecting groove 141 of the corresponding third support member 13.

[0117] In this embodiment, the two adjacent second sub-rods 221 of one inner rod 22 are detachably connected to the third support member 13 at their close ends, and the two adjacent second sub-rods 221 of the other inner rod 22 are rotatably connected to the third support member 13 at their close ends. When the support frame is in the unfolded state, one inner rod 22 is installed on the third support member 13 to improve the structural strength of the support frame. When the support frame needs to be folded, the second sub-rods 221 of one inner rod 22 are detached from the third support member 13 so that at least two inner rods 22 arranged crosswise in the unfolded state will not interfere with the folding of the support frame.

[0118] In some embodiments, please refer to Figures 1-10 The third support member 13 includes a connector 14 and a support foot 131 located below the connector 14. The support foot 131 is detachably connected to the connector 14. The second sub-rod 221 of the inner rod 22 is disposed on the connector 14.

[0119] For example, the second sub-rod 221 of the inner rod 22 is rotatably connected to the connector 14.

[0120] For example, the second sub-rod 221 of the inner rod 22 is detachably connected to the connector 14.

[0121] For example, the support foot 131 is snapped into the connector 14.

[0122] For example, the support foot 131 is threadedly connected to the connector 14.

[0123] In this embodiment, the support foot 131 is detachably connected to the connector 14, and the second sub-rod 221 of the inner rod 22 is disposed on the connector 14. When the support frame is folded, the support foot 131 can be detached to reduce the volume of the folded support frame, thereby reducing the packaging volume of the folded support frame.

[0124] It is understood that the support foot 131 is not limited to being detachably connected to the connector 14. Exemplarily, the support foot 131 is not detachably connected to the connector 14.

[0125] For example, the support leg 131 is welded to the connector 14.

[0126] In some embodiments, please refer to Figures 1-9The support frame also includes a locking member 3, which is disposed on the support member 2. The support member 1 has an abutment portion 16. When the support frame is in the unfolded state, the locking member 3 can move relative to the support member 2 to the locking position of the locking abutment portion 16. The locking member 3 in the locking position is located on the side of the abutment portion 16 away from the support member 2. When the locking member 3 is in the locking position, the abutment portion 16 can abut against the locking member 3 to restrict the rotation of the support member 2 relative to the support member 1.

[0127] For example, the first support member 11 has an abutment portion 16.

[0128] For example, the third support member 13 has an abutment portion 16.

[0129] For example, the second support member 12 has an abutment portion 16.

[0130] For example, when the locking member 3 is in the locked position, the abutting part 16 abuts against the locking member 3 in the up-down direction to restrict the rotation of the bearing member 2 relative to the support member 1.

[0131] In this embodiment, the locking member 3, in the locked position, is located on the side of the abutment portion 16 away from the support member 2. When the locking member 3 is in the locked position, the abutment portion 16 can abut against the locking member 3 to restrict the rotation of the support member 2 relative to the support member 1. When the support frame needs to be folded, the locking member 3 is moved to the position where the abutment portion 16 is unlocked, and the support member 2 can rotate relative to the support member 1 so that the support frame can be folded. When the support frame needs to be kept in the unfolded state, the locking member 3 is moved to the locked position, and the locking member 3 locks the abutment portion 16, restricting the movement of the support member 2 relative to the support member 1, so that the support frame can remain stable and avoid collapse when in use (i.e., in the unfolded state).

[0132] Understandably, the support frame may not need to be equipped with locking element 3.

[0133] In some embodiments, please refer to Figures 1-9 The support member 2 also includes at least one inner rod 22, which extends laterally or longitudinally in the unfolded state. The inner rod 22 is located within the area enclosed by the outer rod 21 in the unfolded state. The inner rod 22 includes a plurality of second sub-rods 221 arranged along the extension direction of the inner rod 22 in the unfolded state. The plurality of support members 1 also include a third support member 13. The ends of two adjacent second sub-rods 221 of the same inner rod 22 that are close to each other are disposed on the third support member 13. The two ends of the inner rod 22 are respectively rotatably connected to the corresponding first support member 11. The rotation center line of the corresponding second sub-rod 221 relative to the first support member 11 intersects the extension direction and the up and down direction of the corresponding second sub-rod 221 respectively. The locking member 3 is disposed on the second sub-rod 221.

[0134] It should be noted that when the locking member 3 is provided on the second sub-rod 221, the first support member 11 and / or the third support member 13 have an abutment portion 16.

[0135] For example, all second sub-rods 221 are provided with locking elements 3.

[0136] For example, a locking element 3 is provided on one of the second sub-bars 221 of the inner bar 22.

[0137] In this embodiment, the locking member 3 is disposed on the second sub-rod 221, which is located within the area enclosed by the outer rod 21. When the support frame is in the unfolded state, the locking member 3 is far from the edge of the support frame, reducing the possibility of the locking member 3 being exposed and accidentally touched.

[0138] It is understood that the locking element 3 is not limited to being disposed on the second sub-rod 221. Exemplarily, the locking element 3 is disposed on the first sub-rod 211.

[0139] In some embodiments, please refer to Figure 3 , Figure 7 and Figure 9 The rotation center line of the second sub-rod 221 rotating around the support member 1 where the corresponding abutment part 16 is located is a preset center line 2211. When the support frame is in the unfolded state, the locking member 3 can move relative to the abutment part 16 in the up and down direction to switch between the locked position and the locked position. The locking member 3 in the locked position can be spaced apart from the abutment part 16 during the rotation around the corresponding preset center line 2211. The locking member 3 provided on the second sub-rod 221 can move into or out of the locked position from one side of the abutment part 16 along the circumference of the corresponding preset center line 2211.

[0140] It should be noted that the locking position is the position of the locking member 3 relative to the abutment part 16 when the support member 1 is in the unfolded state. When the locking member 3 is in the locking position, the abutment part 16 is spaced apart from the locking member 3 in the vertical direction when the support member 1 is in the unfolded state.

[0141] It should be noted that when the locking element 3 is in the locking position, the locking element 3 is installed on the second sub-rod 221.

[0142] It should be noted that the locking member 3, when in the locking position, remains spaced from the abutment portion 16 during rotation around the preset center line 2211. When the locking member 3 is in the locked position, it may abut against the abutment portion 16 in the vertical direction when the support member 1 is in the unfolded state, or it may be spaced from the abutment portion 16 in the vertical direction when the support member 1 is in the unfolded state. When the locking member 3 is spaced from the abutment portion 16 in the vertical direction when the support member 1 is in the unfolded state, the second sub-rod 221 drives the locking member 3 to rotate a small angle around the corresponding preset center line 2211, after which the locking member 3 abuts against the abutment portion 16, restricting the second sub-rod 221 from continuing to rotate around the corresponding preset center line 2211.

[0143] It should be noted that the abutting part 16 is located on the side of the locking member 3 facing the preset center line 2211 along the extension direction of the corresponding second sub-rod 221.

[0144] It should be noted that the preset center line 2211 corresponding to the locking member 3 refers to the preset center line 2211 of the second sub-rod 221 where the locking member 3 is located, which rotates relative to the support member 1 where the abutment part 16 that can abut against the locking member 3 is located.

[0145] For example, each inner rod 22 is provided with a locking element 3.

[0146] For example, each of the second sub-rods 221 is provided with a locking element 3.

[0147] In this embodiment, the locking member 3 disposed on the second sub-rod 221 can move into or out of the locking position from one side of the abutment portion 16 along the circumference of the corresponding preset center line 2211. When the locking member 3 is in the locking position, the abutment portion 16 does not restrict the locking member 3 from rotating with the second sub-rod 221. The second sub-rod 221 can drive the locking member 3 to rotate around the corresponding preset center line 2211 so that the support frame can be folded or unfolded. The locking member 3 does not need to be completely disengaged from the second sub-rod 221, making it easier to unlock the locking member 3 and reducing the possibility of losing the locking member 3.

[0148] It is understood that the locking member 3 provided on the second sub-rod 221 is not limited to moving into or out of the locking position from one side of the abutment portion 16 along the circumference of the corresponding preset center line 2211. For example, the abutment portion 16 is provided around the locking member 3 along the circumference of the locking member 3, and the locking portion needs to be completely disengaged from the second sub-rod 221 and the abutment portion 16 in order to unlock.

[0149] In some embodiments, please refer to Figure 3 , Figure 7 and Figure 9The abutment portion 16 has a relief groove 161. The opening of the relief groove 161 faces the third support member 13 along the extension direction of the corresponding second sub-rod 221. The locking member 3 moves into or out of the relief groove 161 along the circumferential direction of the corresponding preset center line 2211. When the locking member 3 is in the locked position, the locking member 3 is located on both sides of the relief groove 161 along the extension direction of the corresponding preset center line 2211.

[0150] It should be noted that when the locking member 3 is in the locked position, the locking member 3 being partially located on the opposite sides of the clearance groove 161 along the corresponding preset center line 2211 means that, when projected in the vertical direction, the projection area of ​​the groove wall of the clearance groove 161 along the opposite sides of the corresponding preset center line 2211 is at least partially located within the projection area of ​​the locking member 3.

[0151] It should be noted that the maximum dimension of the clearance groove 161 along the preset center line 2211 is smaller than the maximum dimension of the locking member 3 along the preset center line 2211.

[0152] For example, the locking member 3 can be moved into the clearance groove 161 circumferentially along the corresponding preset center line 2211.

[0153] For example, the clearance groove 161 is an arc-shaped groove.

[0154] For example, the clearance groove 161 is a semi-circular groove.

[0155] In this embodiment, the opening of the clearance groove 161 is away from the preset center line 2211 along the extension direction of the corresponding second sub-rod 221. When the locking member 3 is in the locked position, the locking member 3 is located on both sides of the clearance groove 161 along the corresponding preset center line 2211. The abutment portion 16 of the clearance groove 161 on both sides of the preset center line 2211 can abut against the locking member 3, which can increase the contact area of ​​the abutment portion 16 with the locking member 3 and improve the locking stability of the locking member 3 and the abutment portion 16.

[0156] It is understood that the abutment portion 16 is not limited to having a relief groove 161. For example, when projected in the vertical direction, the projection line of the abutment portion 16 on the wall surface on the side opposite to the preset center line 2211 along the extension direction corresponding to the second sub-rod 221 is a straight line.

[0157] In some embodiments, please refer to Figure 3 , Figure 7 and Figure 9 The first support member 11 includes a first limiting part 111, which is located above the first sub-rod 211 to limit the rotation of the first sub-rod 211 relative to the first support member 11.

[0158] For example, the abutting portion 16 is formed on the first limiting portion 111.

[0159] For example, a first limiting part 111 is provided above the second sub-rod 221 to limit the rotation of the second sub-rod 221 relative to the first support member 11.

[0160] For example, the first limiting portion 111 is formed on the connector 14.

[0161] In this embodiment, the first limiting part 111 is located above the first sub-rod 211 to limit the rotation of the first sub-rod 211 relative to the first support member 11. By limiting the rotation of the first sub-rod 211 relative to the first support member 11 through the upper first limiting part 111, the first sub-rod 211 can remain stable in the unfolded state, reducing interference between the first sub-rod 211 and the first support member 11 during rotation. By limiting the rotation of the first sub-rod 211 relative to the first support member 11 through the upper first limiting part 111, the first support member 11 moves upward relative to the second support member 12 when the support frame is folded.

[0162] It is understood that the first support member 11 is not limited to having a first limiting part 111. For example, when the support frame is in the unfolded state, the first sub-rod 211 abuts against the first support member 11 on one side along the extending direction of the first sub-rod 211 toward the first support member 11.

[0163] It is understood that the first limiting part 111 is not limited to being located above the first sub-rod 211. For example, the first limiting part 111 is located below the first sub-rod 211.

[0164] In some embodiments, the second support member 12 includes a second limiting portion 121 located below the first sub-rod 211 to limit the rotation of the first sub-rod 211 relative to the second support member 12.

[0165] It should be noted that the first limiting part 111 and the second limiting part 121 are located on opposite sides of the first sub-rod 211 in the vertical direction.

[0166] For example, the abutting portion 16 is formed on the second limiting portion 121.

[0167] For example, the second limiting part 121 is formed on the connector 14.

[0168] In this embodiment, the second limiting part 121 is located below the first sub-rod 211 to limit the rotation of the first sub-rod 211 relative to the second support member 12. By limiting the rotation of the first sub-rod 211 relative to the second support member 12 through the lower second limiting part 121, the first sub-rod 211 can remain stable in the unfolded state, reducing interference between the first sub-rod 211 and the second support member 12 during rotation. By limiting the rotation of the first sub-rod 211 relative to the second support member 12 through the lower second limiting part 121, the second support member 12 moves downward relative to the first support member 11 when the support frame is folded.

[0169] It is understood that the second support member 12 is not limited to having a second limiting part 121. For example, when the support frame is in the unfolded state, the first sub-rod 211 abuts against the second support member 12 on one side along the extending direction of the first sub-rod 211 toward the second support member 12.

[0170] It is understood that the second limiting part 121 is not limited to being located below the first sub-rod 211. Exemplarily, the second limiting part 121 is located above the first sub-rod 211.

[0171] In some embodiments, the pivot 15 of the second support member 12 is a rivet. Rivet processing is faster and cheaper, which is beneficial to the production and processing of the support frame. The second limiting part 121 is located below the first sub-rod 211. In the event of rivet breakage, the second limiting part 121 can support the first sub-rod 211, thereby improving the safety of the support frame.

[0172] In one embodiment, the third support member 13 has a third limiting portion 132 located below the second sub-rod 221 to limit the rotation of the second sub-rod 221 relative to the third support member 13. By limiting the rotation of the second sub-rod 221 relative to the third support member 13 through the lower third limiting portion 132, the third support member 13 moves downward relative to the first support member 11 when the support frame is folded.

[0173] It should be noted that the third limiting part 132 and the first limiting part 111 are located on opposite sides of the second sub-rod 221 in the vertical direction.

[0174] For example, the third limiting part 132 is formed on the connector 14.

[0175] It is understood that the third limiting part 132 is not limited to being located below the second sub-rod 221. Exemplarily, the third limiting part 132 is located above the second sub-rod 221.

[0176] In some embodiments, please refer to Figures 1-4The support frame also includes a reinforcing rib 4. Among the two first sub-rods 211 connected to the same second support member 12, one end of the reinforcing rib 4 is rotatably connected to one of the first sub-rods 211, and the other end of the reinforcing rib 4 is detachably connected to the other first sub-rod 211. When the support frame is in the unfolded state, the other end of the reinforcing rib 4 is installed on the other first sub-rod 211.

[0177] For example, the reinforcing rib 4 is located below the first sub-rod 211.

[0178] For example, the end of the reinforcing rib 4 that is detachably connected to the first sub-rod 211 has a hook, and the first sub-rod 211 that is detachably connected to the reinforcing rib 4 has a hook post, with the hook hooked onto the hook post.

[0179] For example, the other end of the reinforcing rib 4 is bolted to another of the first sub-rods 211.

[0180] In this embodiment, one end of the reinforcing rib 4 is rotatably connected to one of the first sub-rods 211, and the other end of the reinforcing rib 4 is detachably connected to the other first sub-rod 211. When the support frame is in the unfolded state, the other end of the reinforcing rib 4 is installed on the other first sub-rod 211. The reinforcing rib 4 can strengthen the connection strength of the two second sub-rods 221 rotatably connected to the second support member 12, thereby improving the compressive strength and stability of the support frame. When the support frame needs to be folded, the reinforcing rib 4 is rotated to detach the other end of the reinforcing rib 4 from the other first sub-rod 211, allowing the first sub-rod 211 to be folded by rotation, thus balancing the structural strength of the support frame with ease of folding.

[0181] It is understandable that the support frame may not need to have reinforcing ribs 4.

[0182] In some embodiments, the second sub-rod 221 has a mounting hole, and the locking member 3 includes a locking part and a mounting part connected to each other. The mounting part is threadedly connected to the wall of the mounting hole. The locking part protrudes radially from the mounting part along the mounting hole. The abutting part 16 is capable of abutting against the locking part in the up-down direction. The abutting part 16 is located on the side of the mounting part facing the preset center line 2211 along the extension direction corresponding to the second sub-rod 221, so that the abutting part 16 can rotate relative to the locking part about the preset center line 2211.

[0183] For example, the locking member 3 is threadedly connected to the mounting part.

[0184] For example, the locking element 3 is a wing nut or a regular nut.

[0185] For example, the locking element 3 is a wing bolt or a big head bolt.

[0186] For example, the locking element 3 is a non-removable bolt.

[0187] For example, the mounting portion is located within the clearance groove 161.

[0188] In some embodiments, please refer to Figure 3 , Figure 7 and Figure 9 The first support member 11 has an abutment portion 16, and the locking member 3 is located on the side of the second sub-rod 221 opposite to the third support member 13 along the extension direction of the corresponding second sub-rod 221.

[0189] For example, the locking member 3 locks the abutment portion 16 on the first support member 11 in the locking position.

[0190] For example, the third support member 13 has an abutment portion 16, and the inner rod 22 is provided with locking members 3 on opposite sides along the extension direction of the corresponding second sub-rod 221.

[0191] In some embodiments, the first support member 11 includes a support column, which is connected to a connector 14 of the first support member 11, and the support column is located below the connector 14 in the unfolded state.

[0192] In some embodiments, the second support member 12 includes a support column, which is connected to a connector 14 of the second support member 12, and the support column is located below the connector 14 in the unfolded state.

[0193] In some embodiments, the support frame further includes a plurality of middle crossbars, which extend laterally and are spaced apart longitudinally. The two ends of the middle crossbars are detachably connected to the outer longitudinal bars at both ends, and the middle crossbars abut against the inner longitudinal bars in the vertical direction.

[0194] In some embodiments, when it is necessary to fold the support frame, all the first support members 11 are lifted upwards, causing the first sub-rod 211 to rotate relative to the first support member 11 and the second support member 12, and causing the second sub-rod 221 to rotate relative to the first support member 11 and the third support member 13, thereby bringing the entire support frame together towards the center and completing the folding of the support frame.

[0195] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, and improvements made within the spirit and scope of this application are included within the scope of protection of this application.

Claims

1. A support frame, characterized in that, include: The support frame includes multiple outer rods. In the unfolded state, the support frame has outer rods extending laterally on opposite sides along the longitudinal direction. In the unfolded state, the support frame has outer rods extending longitudinally on opposite sides along the lateral direction. The longitudinal direction intersects the lateral direction, and the vertical direction intersects the longitudinal direction and the lateral direction, respectively. The outer rods include multiple first sub-rods arranged along the corresponding extension direction of the outer rod in the unfolded state. The support member is a plurality of supports, including a plurality of first supports and a plurality of second supports. In the unfolded state, the first supports are rotatably connected to two adjacent first sub-rods of the same outer rod on opposite sides along the horizontal or vertical direction. In the unfolded state, the second supports are rotatably connected to two outer rods on one side along the horizontal direction and one side along the vertical direction. The rotation center line of the first sub-rod relative to the first support intersects the extension direction of the first sub-rod and the vertical direction, respectively. The rotation center line of the first sub-rod relative to the second support intersects the extension direction of the first sub-rod and the vertical direction, respectively, so that the support frame can be folded or unfolded.

2. The support frame according to claim 1, characterized in that, The support includes a connector and a rotating shaft. The connector has a connecting groove, and the first sub-rod portion is located within the connecting groove. The rotating shaft passes through the groove wall and the first sub-rod along the rotation center line of the corresponding first sub-rod.

3. The support frame according to claim 1, characterized in that, The support member further includes at least one inner rod, which extends along the transverse or longitudinal direction in the unfolded state. The inner rod is located within the area enclosed by the outer rod in the unfolded state. The inner rod includes a plurality of second sub-rods arranged along the extension direction of the inner rod in the unfolded state. The plurality of support members further includes a third support member, wherein the ends of two adjacent second sub-rods of the same inner rod that are close to each other are disposed on the third support member, and the two ends of the inner rod are respectively rotatably connected to the corresponding first support member, and the rotation center line of the corresponding second sub-rod relative to the first support member intersects the extension direction and the vertical direction of the corresponding second sub-rod.

4. The support frame according to claim 3, characterized in that, At least one of the inner rods has two adjacent second sub-rods that are close to each other at their ends respectively rotatably connected to the third support member, and the rotation center line of the corresponding second sub-rod relative to the third support member intersects the extension direction and the vertical direction of the corresponding second sub-rod respectively.

5. The support frame according to claim 4, characterized in that, All the inner rods extend in the same direction when unfolded. The second sub-rod is a telescopic rod that extends or retracts when unfolded or folded.

6. The support frame according to claim 4, characterized in that, The number of inner rods is at least two, one of which is an inner horizontal rod that extends laterally in the unfolded state, and the other is an inner vertical rod that extends longitudinally in the unfolded state. The second sub-rod of one of the inner horizontal rod and the inner vertical rod is a telescopic rod, and the length of the inner horizontal rod is less than the length of the inner vertical rod. When the second sub-rod of the inner crossbar is a telescopic rod, the second sub-rod of the inner crossbar is in a retracted state when it is in the unfolded state, and in an extended state when it is in the folded state; When the second sub-rod of the inner longitudinal rod is a telescopic rod, the second sub-rod of the inner longitudinal rod is in the extended state when unfolded, and in the retracted state when folded.

7. The support frame according to claim 6, characterized in that, The telescopic rod includes a telescopic cylinder and a telescopic member. One of the telescopic cylinder and the telescopic member is rotatably connected to the first support member, and the other of the telescopic cylinder and the telescopic member is rotatably connected to the third support member. The telescopic member is partially located inside the telescopic cylinder and moves telescopically along the extension direction corresponding to the second sub-rod. The telescopic cylinder has an inwardly protruding first protrusion, and the telescopic member has an outwardly protruding second protrusion. The second protrusion is located inside the telescopic cylinder, and the first protrusion can abut against the second protrusion along the extension direction corresponding to the second sub-rod to prevent the telescopic member from disengaging from the telescopic cylinder.

8. The support frame according to claim 3, characterized in that, The number of inner rods is at least two, and the at least two inner rods are arranged crosswise in the unfolded state. The two adjacent second sub-rods of one inner rod are detachably connected to the third support member at their close ends, and the two adjacent second sub-rods of the other inner rod are rotatably connected to the third support member at their close ends.

9. The support frame according to claim 3, characterized in that, The third support member includes a connector and a support foot located below the connector. The support foot is detachably connected to the connector, and the second sub-rod of the inner rod is disposed on the connector.

10. The support frame according to any one of claims 1 to 9, characterized in that, The support frame further includes a locking member disposed on the carrier. The support member has an abutment portion. When the support frame is in the unfolded state, the locking member can move relative to the carrier to a locking position that locks the abutment portion. The locking member portion in the locking position is located on the side of the abutment portion away from the carrier. When the locking member is in the locking position, the abutment portion can abut against the locking member to restrict the carrier from rotating relative to the support member.

11. The support frame according to claim 10, characterized in that, The support member further includes at least one inner rod, which extends along the transverse or longitudinal direction in the unfolded state. The inner rod is located within the area enclosed by the outer rod in the unfolded state. The inner rod includes a plurality of second sub-rods arranged along the extension direction of the inner rod in the unfolded state. The plurality of support members further includes a third support member. Two adjacent second sub-rods of the same inner rod are disposed at one end close to each other on the third support member. The two ends of the inner rod are respectively rotatably connected to the corresponding first support member. The rotation center line of the corresponding second sub-rod relative to the first support member intersects the extension direction and the vertical direction of the corresponding second sub-rod. The locking member is disposed on the second sub-rod.

12. The support frame according to claim 11, characterized in that, The rotation center line of the second sub-rod around the support member corresponding to the abutment is a preset center line. When the support frame is in the unfolded state, the locking member can move relative to the abutment in the up-down direction to switch between the locked position and the locked position. The locking member in the locked position can be spaced apart from the abutment during the rotation around the preset center line. The locking member provided on the second sub-rod can move into or out of the locked position from one side of the abutment along the circumference of the preset center line.

13. The support frame according to claim 12, characterized in that, The abutting part has a clearance groove, the opening of which faces the third support member along the extension direction corresponding to the second sub-rod. The locking member disposed on the second sub-rod moves into or out of the clearance groove along the circumferential direction corresponding to the preset center line. When the locking member is in the locked position, the locking member is partially located on opposite sides of the clearance groove along the extension direction corresponding to the preset center line.

14. The support frame according to any one of claims 1 to 9, characterized in that, The first support member includes a first limiting portion located above the first sub-rod to limit rotation of the first sub-rod relative to the first support member; and / or, The second support member includes a second limiting part located below the first sub-rod to limit the rotation of the first sub-rod relative to the second support member.

15. The support frame according to any one of claims 1 to 9, characterized in that, The support frame also includes a reinforcing rib. Among the two first sub-rods connected to the same second support member, one end of the reinforcing rib is rotatably connected to one of the first sub-rods, and the other end of the reinforcing rib is detachably connected to the other first sub-rod. When the support frame is in the unfolded state, the other end of the reinforcing rib is installed on the other first sub-rod.

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