Folding bed frame and bedding

Abstract

The folding bed frame comprises two transverse supports which are oppositely arranged and two longitudinal supporting beams which are arranged in parallel, and the two transverse supports are located on the two longitudinal sides of the folding bed frame respectively and extend in the transverse direction of the folding bed frame. The two ends of the longitudinal supporting beam are rotationally connected with the ends of the two transverse supports respectively, and the longitudinal supporting beam can be folded. The longitudinal supporting beams are rotationally connected with the transverse supports, and the longitudinal supporting beams can be folded and drive the two transverse supports to get close to each other, so that the folding bed frame is folded and stored. In the structure, the structures are connected by using parts such as screws and the like, so that the inconvenience in use of the folding bed frame caused by loosening and falling of the parts can be reduced to a certain extent.

Description

Technical Field

[0001] This invention belongs to the field of furniture, specifically relating to a folding bed frame and bedding. Background Technology

[0002] Traditional bed frames are constructed by piecing together multiple support panels, a headboard frame, and a bed slat (or reinforcing beams), with the support panels and headboard frame fixedly connected. Their structure is bulky, and moving or retrieving the bed frame usually requires the collaboration of multiple people. With the increasing number of single-person households in contemporary society, fixed-connection bed frames are extremely inconvenient for these users.

[0003] Currently, there are various types of folding bed frames on the market, which are usually composed of multiple metal tubes that can rotate relative to each other. In order to achieve relative rotation between the metal tubes, folding bed frames usually need to be connected with a large number of screws and pins, which can easily lead to problems such as loose screws or falling off, causing inconvenience in use and even affecting the stability and safety of the folding bed frame. Summary of the Invention

[0004] The purpose of this invention is to provide a folding bed frame and bedding including the folding bed frame. A longitudinal support beam is rotatably connected to a transverse support, and the longitudinal support beam can be folded to bring the two transverse supports closer together, thereby achieving the folding and storage of the folding bed frame. In the above structure, fewer screws or other parts are used for connection between the various components, thus reducing the inconvenience of using the folding bed frame due to loose or falling parts.

[0005] The technical solution of the present invention is as follows:

[0006] A folding bed frame includes two opposing transverse supports and two parallel longitudinal support beams. The two transverse supports are located on the longitudinal sides of the folding bed frame and extend along the transverse direction of the folding bed frame. The two ends of the longitudinal support beams are rotatably connected to the ends of the two transverse supports, and the longitudinal support beams can be folded.

[0007] In some possible implementations, the transverse support has bed frame columns arranged along the height direction at both ends, and at least a portion of the bed frame columns forms a socket section with an elliptical outer diameter cross section.

[0008] Rigid rotating tubes are installed at both ends of the longitudinal support beam. A plastic inner sleeve is installed inside the rigid rotating tube. The inner diameter cross-section of the plastic inner sleeve is elliptical and matches the sleeve section. The outer diameter cross-section of the plastic inner sleeve is circular. The inner diameter cross-section of the rigid rotating tube is circular and matches the outer diameter cross-section of the plastic inner sleeve.

[0009] When the folding bed frame is in the folded state, the major axis of the inner diameter section of the plastic inner sleeve is in the same direction as the major axis of the outer diameter section of the sleeve section. When the folding bed frame is in the open state, the major axis of the inner diameter section of the plastic inner sleeve is in the same direction as the minor axis of the outer diameter section of the sleeve section.

[0010] In some possible implementations, the connecting section is located at the upper end of the bed frame column, and the longitudinal support beam is connected to the connecting part.

[0011] In some possible implementations, the bed frame uprights are formed by inserting upper and lower uprights together, with a connecting segment formed at the insertion point of the upper and lower uprights.

[0012] In some possible implementations, the transverse support also includes a transverse support beam, with each end of the transverse support beam fixedly connected to a bed frame column.

[0013] In some possible implementations, the lower end of the rigid rotating tube and the lower end of the plastic inner sleeve are respectively formed with bracket locking interfaces at corresponding positions on their side walls. The bracket locking interfaces can engage with the transverse support beam. When the folding bed frame is in the open state, the bracket locking interfaces are directly opposite the transverse support beam and are locked with the transverse support beam.

[0014] In some possible implementations, the bed frame uprights are also provided with positioning rivets, which are located in the sleeve section, or the distance between the positioning rivets and the sleeve section is less than the length of the plastic inner sleeve in the height direction;

[0015] The inner wall of the plastic inner sleeve has a positioning groove, and the end of the positioning rivet away from the bed frame upright is engaged in the positioning groove;

[0016] The positioning rivet can be displaced horizontally and / or vertically relative to the sleeve along the positioning groove.

[0017] In some possible implementations, the bed frame uprights are formed by inserting upper and lower uprights together, with the connecting section located at the insertion point of the upper and lower uprights.

[0018] The lower end of the upper column is a hollow tubular structure and a positioning slot is provided at the lower end of the upper column. The positioning rivets are located at the upper end of the lower column.

[0019] The upper end of the lower column is inserted into the lower end of the upper column, and the positioning rivet engages with the positioning slot.

[0020] In some possible implementations, the longitudinal support beam is obtained by connecting at least two main sections end to end in sequence, with adjacent main sections hinged together;

[0021] When the folding bed frame is in the folded state, the main sections of the folding bed frame overlap. When the folding bed frame is in the open state, the main sections of the folding bed frame open and form a straight line.

[0022] In some possible implementations, the longitudinal support beam includes two main sections and a U-shaped connecting piece. The two main sections are hinged by the U-shaped connecting piece and can rotate horizontally with the connection point between them as the axis. The openings of the U-shaped connecting pieces on the two longitudinal support beams are arranged opposite to each other. When the folding bed frame is in the folded state, the longitudinal support beam is folded in half and stored between the two transverse supports.

[0023] In some possible implementations, the folding bed frame also includes a central support, which consists of two support legs and a reinforcing tube, with each end of the reinforcing tube connected to the middle of one of the support legs.

[0024] The U-shaped connecting piece is also provided with a downward-facing support foot slot, and the support foot slots on the two U-shaped connecting pieces are respectively inserted into the upper end of a support foot.

[0025] In some possible implementations, multiple parallel transverse reinforcing beams are also included, with both ends of the transverse reinforcing beams being snapped into the longitudinal support beams via a snap-fit ​​structure.

[0026] In some possible implementations, multiple parallel longitudinal reinforcing beams are also included, with both ends of the longitudinal reinforcing beams being connected to the transverse support beams or transverse reinforcing beams via plug-in structures.

[0027] In some possible implementations, the two upper columns of the transverse support are connected by at least one headboard crossbar.

[0028] In some possible implementations, the upper support is connected by two headboard crossbars, with several headboard reinforcing bars arranged side by side in the height direction between the headboard crossbars.

[0029] A type of bedding, including the aforementioned folding bed frame.

[0030] The present invention has at least the following beneficial effects:

[0031] (1) The longitudinal support beam is rotatably connected to the transverse support, and the longitudinal support beam can be folded and drive the two transverse supports to move closer to each other, thereby realizing the folding and storage of the folding bed frame. The various structures are connected with little or no screws or other parts, which can reduce the inconvenience of using the folding bed frame due to loose parts falling off to a certain extent.

[0032] (2) In some possible implementations, the longitudinal support beam can move and rotate horizontally relative to the transverse support in the height direction, and the folding of the longitudinal support beam drives the entire folding bed frame to fold. Furthermore, through the cooperation of the sleeve part on the longitudinal support beam and the sleeve section on the transverse support beam, when the folding bed frame is in the folded state, the long axes of the two are in the same direction, and when the folding bed frame is in the open state, the sleeve section and the rigid rotating tube squeeze the plastic inner sleeve to lock the sleeve section and the sleeve part, thereby fixing the folding bed frame in the open state. Attached Figure Description

[0033] Figure 1 A schematic diagram of the structure of the folding bed frame provided in Example 1;

[0034] Figure 2 This is a schematic diagram of the connection between the lower column and the transverse support beam in Example 1;

[0035] Figure 3 for Figure 2 The front view;

[0036] Figure 4 for Figure 2 Left side view;

[0037] Figure 5 for Figure 2 Top view;

[0038] Figure 6 This is a schematic diagram of the connection between the upper column, the headboard crossbar, and the headboard reinforcing bar in Example 1;

[0039] Figure 7 for Figure 6 Inverted structural diagram;

[0040] Figure 8 for Figure 6 The front view;

[0041] Figure 9 for Figure 6 Left side view;

[0042] Figure 10 This is a schematic diagram showing the longitudinal support beam being connected to the lower column via a sleeve joint.

[0043] Figure 11 for Figure 10 The front view;

[0044] Figure 12 for Figure 10 Left side view;

[0045] Figure 13 for Figure 10 Top view;

[0046] Figure 14 for Figure 10 Enlarged view of A in the middle;

[0047] Figure 15 This is a schematic diagram of the inverted plastic inner sleeve in Example 1;

[0048] Figure 16 This is a schematic diagram of the plastic inner sleeve in Example 1;

[0049] Figure 17 for Figure 16 Top view;

[0050] Figure 18 This is a schematic diagram of the U-shaped connecting piece in Example 1;

[0051] Figure 19 for Figure 18 The right-side view;

[0052] Figure 20 This is a schematic diagram of the assembly process of the folding bed frame in Example 1. In this example, the longitudinal support beam is first sleeved onto the lower column through the sleeve part, and the upper column, the lower column, and the sleeve part are aligned in the height direction.

[0053] Figure 21 This is a schematic diagram of the assembly process of the folding bed frame in Example 1, in which the longitudinal support beam and the transverse bracket are assembled and in a folded state;

[0054] Figure 22 This is a schematic diagram of the assembly process of the folding bed frame in Example 1, wherein the longitudinal support beam is partially opened;

[0055] Figure 23 for Figure 22 Rear view;

[0056] Figure 24 for Figure 22 Left side view;

[0057] Figure 25 This is a schematic diagram of the assembly process of the folding bed frame in Example 1, in which the longitudinal support beam and the transverse support are assembled and in the open state, but the sleeve part is not engaged with the transverse support beam;

[0058] Figure 26 This is a schematic diagram of the assembly process of the folding bed frame in Example 1, in which the longitudinal support beam and the transverse support are assembled and in the open state, and the sleeve part is engaged with the transverse support beam;

[0059] Figure 27 This is a schematic diagram of the assembly process of the folding bed frame in Example 1;

[0060] Figure 28This is a schematic diagram of the assembly process of the folding bed frame in Example 1, wherein the intermediate support is connected to the longitudinal support beam through the insertion and engagement of support feet and support foot slots;

[0061] Figure 29 This is a schematic diagram of the structure of the plastic inner sleeve in Example 2;

[0062] Figure 30 for Figure 29 The front view;

[0063] Figure 31 for Figure 29 Top view;

[0064] Figure 32 This is a schematic diagram of the connection between the lower column and the transverse support beam in Example 2;

[0065] Figure 33 for Figure 32 The front view;

[0066] Figure 34 for Figure 32 Left side view;

[0067] Figure 35 This is a schematic diagram of the connection between the upper column and the headboard crossbar in Example 2;

[0068] Figure 36 for Figure 35 Inverted structural diagram;

[0069] Figure 37 for Figure 35 Left side view;

[0070] Figure 38 This is a schematic diagram showing the longitudinal support beam being connected to the lower column via a sleeve joint.

[0071] Figure 39 for Figure 38 The front view;

[0072] Figure 40 This is a schematic diagram of the assembly process of the folding bed frame in Example 2. In this example, the longitudinal support beam is first sleeved onto the lower column through the sleeve part, and the upper column, the lower column, and the sleeve part are aligned in the height direction.

[0073] Figure 41 This is a schematic diagram of the assembly process of the folding bed frame in Example 2, in which the longitudinal support beam and the transverse bracket are assembled and in a folded state;

[0074] Figure 42 This is a schematic diagram of the assembly process of the folding bed frame in Example 2, wherein the longitudinal support beam is partially opened;

[0075] Figure 43This is a schematic diagram of the assembly process of the folding bed frame in Example 2, in which the longitudinal support beam and the transverse bracket are assembled and in the open state;

[0076] Figure 44 This is a schematic diagram of the assembly process of the folding bed frame in Example 2;

[0077] Figure 45 This is a schematic diagram of the assembly process of the folding bed frame in Example 2, wherein the intermediate support is connected to the longitudinal support beam through the insertion and engagement of support feet and support foot slots;

[0078] Figure 46 This is a schematic diagram of the plastic inner sleeve in Example 3;

[0079] Figure 47 for Figure 46 The front view;

[0080] Figure 48 for Figure 46 Top view.

[0081] The reference numerals in the diagram are as follows: 1-Transverse support, 11-Bed frame upright, 111-Socket section, 112-Upper upright, 113-Positioning bayonet, 114-Lower upright, 115-Positioning rivet, 116-Upright slot, 12-Transverse support beam, 121-Slot, 13-Headboard crossbar, 14-Headboard reinforcing bar, 2-Longitudinal support beam, 21-Main body section, 22-U-shaped connecting piece, 221-Support leg slot, 23-Snap-fit ​​female part, 241-Rigid rotating tube, 242-Plastic inner sleeve, 243-Positioning groove, 244-First snap-fit ​​interface, 245-Second snap-fit ​​interface, 246-Frame protrusion, 247-Strip protrusion, 3-Intermediate support, 31-Support leg, 32-Reinforcing tube, 4-Transverse reinforcing beam, 41-Snap-fit ​​sub-part, 5-Longitudinal reinforcing beam, 51-Insertion piece. Detailed Implementation

[0082] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the familiar embodiments are merely one implementation of the present invention. All other embodiments obtained by those skilled in the art based on the following embodiments without creative effort are within the protection scope of the present invention.

[0083] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. In this invention, the terms "upper," "lower," "bottom," "rear," "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In this embodiment, "lower" refers to the direction close to the ground or other supporting surface after the elements are unfolded and spliced ​​to form a folding bed frame. In this application, "lateral" refers to the direction along the width direction of the folding bed frame, and "longitudinal" refers to the direction along the length direction of the folding bed frame, but here "lateral" and "longitudinal" or "width direction" and "length direction" are only two mutually perpendicular directions and do not impose other limitations on the folding bed frame. For example, the dimension of the folding bed frame along its length direction can be greater than, equal to, or smaller than its dimension in the width direction.

[0084] Example 1

[0085] like Figure 1 As shown, the folding bed frame includes two opposing transverse supports 1, two parallel longitudinal support beams 2, a middle support 3, multiple parallel transverse reinforcing beams 4, and multiple parallel longitudinal reinforcing beams 5. The two transverse supports 1 are located on opposite sides of the longitudinal direction of the folding bed frame and extend along its transverse direction. The two ends of the longitudinal support beams 2 are connected to the ends of the two transverse supports 1. Figures 2-9 The specific structure of the transverse support is shown. The transverse support 1 includes a bed frame column 11, on which a sleeve section 111 with an elliptical outer diameter cross-section is formed. From Figures 10-13 It can be seen that the two ends of the longitudinal support beam 2 are fitted with rigid rotating tubes 241 by welding, and plastic inner sleeves 242 are fixedly fitted inside the rigid rotating tubes 241 (hereinafter, the two are collectively referred to as the fittings). From Figures 15-17 As can be seen, the outer diameter cross-section of the plastic inner sleeve 242 and the inner diameter cross-section of the rigid rotating tube 241 are mutually matching circles, and the inner diameter cross-section of the plastic inner sleeve 242 is an ellipse that matches the sleeve section 111. The transverse support 1 and the longitudinal support beam 2 of the sleeve part are rotatedly connected through the matching sleeve section 111 and the sleeve part.

[0086] The specific structure of each component in this embodiment will be described below.

[0087] First, in this embodiment, the two transverse supports 1 are the headboard and the footboard, respectively.

[0088] like Figures 2-5As shown, the bed frame uprights 11 of the transverse support 1 at the foot of the bed have no upper uprights 112, and two lower uprights 114 are connected by transverse support beams 12, with the upper end of the lower uprights 114 forming a sleeve section 111.

[0089] The bed frame uprights 11 of the transverse support at the head of the bed are formed by the insertion of an upper upright 112 and a lower upright 114. Specifically, first refer to... Figures 6-9 The lower end of the upper column 112 has a column slot 116 extending upwards along the height direction, and the outer diameter cross-section of the column slot 116 is elliptical. The upper end of the lower column 114 has a constricted opening to mate with the column slot 116. The outer diameter cross-section of the lower column 114 between its insertion point with the column slot 116 and its connection point with the transverse support beam 12 is also elliptical. When the upper column 112 and the lower column 114 are inserted, the elliptical portions of their outer diameter cross-sections contact each other and together form a connecting section 111. This arrangement allows the connecting part to move up and down between the upper column 112 and the lower column 114. Furthermore, when the folding bed frame is in the open state, the connecting part is at its lowest position reachable by its up-and-down movement along the connecting section 111. At this time, the upper column 112 and the lower column 114 are inserted, and the connecting part simultaneously engages with both the upper column 112 and the lower column 114, giving the folding bed frame high stability.

[0090] See also Figure 2 and Figure 3 The two lower uprights 114 of the transverse support 1 at the head of the bed are connected in the middle by a transverse support beam 12, and then... Figures 6-8 As shown, two upper uprights 112 are connected by two headboard crossbars 13, and several headboard reinforcing bars 14 arranged side by side in the height direction are fixedly connected between the two headboard crossbars 13. In this embodiment, dividing the bed frame uprights 11 into upper uprights 112 and lower uprights 114 is to enable the headboard to be detachable. More importantly, this arrangement allows the rigid rotating tube 241 and the plastic inner sleeve 242 of the longitudinal support beam 2 to be more easily fitted onto the fitting section 111. Specifically, in this embodiment, the fitting section can be fitted onto the fitting section 111 on the upper upright 112 first, and then the lower upright 114 can be inserted into the upright slot 116 to achieve the assembly of the transverse support 1 and the connection between the transverse support 1 and the longitudinal support beam 2.

[0091] In other possible implementations, the folding bed frame may not distinguish between the head and foot of the bed as needed, and the bed frame uprights 11 of the two transverse supports 1 may be obtained by inserting the upper upright 112 and the lower upright 114 together. Alternatively, the head uprights 11 of the two transverse supports 1 may not have the upper upright 112 and may only include the lower upright 114.

[0092] Furthermore, in other possible implementations, the upper end of the lower column 114 forms a column slot 116 extending downward along the height direction, and the lower column 114 and the upper column 112 are connected through the column slot 116. The upper end of the lower column 114 forms a socket section 111 with an elliptical outer diameter cross-section.

[0093] In other possible implementations, the upper column 112 and the lower column 114 are integrally formed or fixedly connected. This structure prevents the upper column 112 and the lower column 114 from being disassembled and then fitted onto the sleeve section 111. Therefore, the manufacturer needs to pre-assemble the transverse support 1 and the longitudinal support beam 2 and fold them for shipment. In this variation, although the transverse support 1 and the longitudinal support beam 2 are difficult to disassemble, the technical effect of a stable connection and fewer connecting parts as described in this application can still be achieved.

[0094] like Figure 22 As shown, the longitudinal support beam 2 includes two main sections 21 and a U-shaped connecting piece 22. One end of each of the two main sections 21 is rotatably connected to the U-shaped connecting piece 22, allowing the main sections 21 to rotate horizontally around their connection point with the U-shaped connecting piece 22, thus enabling the longitudinal support beam 2 to open or fold. Furthermore, the openings of the U-shaped connecting pieces 22 of the two longitudinal support beams 2 are arranged opposite to each other (or, the openings are oriented away from the folding bed frame), allowing the longitudinal support beam 2 to fold inwards into the folding bed frame when folded. During the transition from the open state to the folded state, the angle between the two main sections 21 decreases from 180° to 0°, and the angle between the main section 21 and the transverse support 1 decreases from 90° to 0°. The folding of the longitudinal support beam 2 causes the two transverse supports 1 to move closer together, achieving the folding of the transverse support 1 and the longitudinal support beam 2 in the folding bed frame.

[0095] In this application, a rigid rotating tube 241 extending through the height direction is provided at the end of the main body segment 21 of the longitudinal support beam 2 away from the U-shaped connecting piece 22. A plastic inner sleeve 242 is fixedly sleeved inside the rigid rotating tube 241, and the cross-section of the inner diameter of the plastic inner sleeve 242 is elliptical, which matches the sleeve segment 111. Both ends of the longitudinal support beam 2 are respectively sleeved with the sleeve segment 111 of a transverse bracket 1 through the sleeve part, so that the longitudinal support beam 2 can move along the sleeve segment 111 in the height direction or rotate in the horizontal direction about the sleeve segment 111 as an axis.

[0096] By adjusting the long axis of the cross-section of the plastic inner sleeve 242 to be consistent with the long axis of the outer diameter cross-section of the sleeve section 111, the sleeve part can be easily fitted onto the outside of the sleeve section 111. At this time, the folding bed frame is in a folded state, and the longitudinal support beam 2 and the transverse support beam 12 are roughly parallel. Subsequently, the rotating sleeve part is rotated. Because the long axis of the cross-section of the plastic inner sleeve 242 is misaligned with the long axis of the outer diameter cross-section of the sleeve section 111, the inner wall of the plastic inner sleeve 242 is squeezed and undergoes elastic deformation under the combined action of the sleeve section 111 and the rigid rotating tube 241. A large frictional force is generated between the plastic inner sleeve 242 and the sleeve section 111, which makes the sleeve section 111 and the sleeve part gradually lock together. When the plastic inner sleeve 242 rotates 90°, the frictional force between the plastic inner sleeve 242 and the sleeve section 111 reaches its maximum, and the plastic inner sleeve 242 and the sleeve section 111 are locked together, making it difficult for relative rotation to occur. At this time, the longitudinal support beam 2 is perpendicular to the transverse support beam 12, and the folding bed frame is in the open state.

[0097] If the two longitudinal support beams 2 are at the same height, they will obviously interfere with each other during folding, making folding impossible. This application addresses this by connecting the bed frame uprights 11 to the longitudinal support beams 2, allowing the longitudinal support beams 2 to move vertically along the connecting section 111 of the bed frame uprights 11. Therefore, during folding, the longitudinal support beams 2 can move as follows: Figures 10-13 As shown, the two longitudinal support beams 2 are staggered in the height direction to avoid mutual interference.

[0098] Furthermore, such as Figures 14-17 The rigid rotating tube 241 and the plastic inner sleeve 242 shown have bracket locking interfaces formed at corresponding positions on their side walls. The bracket locking interface of the rigid rotating tube 241 is the first locking interface 244, and the bracket locking interface of the plastic inner sleeve 242 is the second locking interface 245.

[0099] Specifically, the second card interface 245 includes an opening at the lower end of the side wall of the plastic inner sleeve 242, and a frame protrusion 246 protruding from the side wall away from the plastic inner sleeve 242 is formed along the edge of the opening. The opening and the frame protrusion 246 can be engaged with the transverse support beam 12. The first card interface 244 also has an opening, and strip-shaped protrusions 247 protruding from the side wall away from the rigid rotating tube 241 are formed along the three edges of the opening of the first card interface 244. Two strip-shaped protrusions 247 are arranged opposite each other and extend in the height direction, and the other strip-shaped protrusion is arranged above the opening and extends in the horizontal direction.

[0100] The opening of the first card interface 244 is slightly larger than the opening of the second card interface 245. The frame protrusion 246 engages with the opening of the first card interface 244 and contacts the three strip protrusions 247. The engagement of the frame protrusion 246 and the strip protrusions 247 secures the connection between the rigid rotating tube 241 and the plastic inner sleeve 242. Furthermore, when the main body section 21 is perpendicular to the transverse support beam 12, the bracket card interface 244 faces the transverse support beam 12. By pressing down the longitudinal support beam 2, the bracket card interface 244 engages with the transverse support beam 12, restricting the horizontal rotation of the longitudinal support beam 2 relative to the sleeve section 111, thereby ensuring the folding bed frame remains stably in the open state.

[0101] In other possible implementations, the three strip protrusions 247 can be integrally formed; or, the strip protrusions 247 and / or the border protrusions 246 can be omitted; the shape of the opening of the first card interface 244 and the opening of the second card interface 245 can be the same or different, as long as the shape of the overlapping part can be matched with the transverse support beam 12.

[0102] Please see below. Figure 18 and Figure 19 The U-shaped connecting piece 22 is also provided with a downward-opening support foot slot 221. The intermediate bracket 3 includes two support feet 31 and a reinforcing tube 32. The two ends of the reinforcing tube 32 are respectively connected to the middle of a support foot 31, and the support foot slot 221 is inserted into the upper end of the support foot 31.

[0103] Figure 1 The diagram shows the structure of the folding bed frame after assembly. The two ends of the transverse reinforcing beam 4 are respectively connected to the longitudinal support beam 2 by a snap-fit ​​structure. Specifically, the snap-fit ​​structure includes a snap-fit ​​female part 23 disposed on the inner surface of the longitudinal support beam 2 and snap-fit ​​female parts 41 disposed on both ends of the transverse support beam 12. The snap-fit ​​female parts 41 cooperate with the snap-fit ​​female part 23 to achieve snap-fit.

[0104] Both ends of the longitudinal reinforcing beam 5 are respectively connected to the transverse support beam 12 or the transverse reinforcing beam 4 through a plug-in structure. Specifically, the plug-in structure includes downward inserts 51 at both ends of the longitudinal reinforcing beam 5 and slots 121 on the transverse support beam 12 and the transverse reinforcing beam 4. The slots 121 and the inserts 51 cooperate to connect the longitudinal reinforcing beam 5 with the transverse support beam 12 and / or the transverse reinforcing beam 4.

[0105] The assembly method of the folding bed frame provided in Example 1 will be described below:

[0106] First refer to Figures 10-13Two longitudinal support beams 2 are respectively fitted onto the lower column 114 through a rigid rotating tube 241 and a plastic inner sleeve 242, and then fitted onto the connecting section 111. To prevent interference between the longitudinal support beams 2, their heights are staggered. As shown in the figure, this arrangement allows both longitudinal support beams 2 to be fully folded. After folding, the longitudinal length of the longitudinal support beams 2, the lower column 114, and the transverse support beam 12 is approximately the sum of the diameters of the two lower columns 114. Figure 13 As can be seen, the outer diameter section of the sleeve section 111 is aligned with the long axis of the inner diameter section of the plastic inner sleeve 242. Therefore, the plastic inner sleeve 242 is not subjected to compression from the rigid rotating tube 241 and the sleeve section 111.

[0107] Please refer to the following. Figure 20 and Figure 21 The upper column 112 is inserted into the lower column 114 through the column slot, and at the same time, the upper column 112 is sleeved with the sleeve part.

[0108] Then please see Figures 22-24 Pulling the transverse support 1 causes the two transverse supports 1 to move away from each other. During this process, the transverse support 1 drives the longitudinal support beam 2 to open, and the sleeve part rotates relative to the bed frame column 11. Until... Figure 25 As shown in the diagram, the longitudinal support beam 2 is fully open, and the two main sections 21 of the longitudinal support beam 2 are aligned in a straight line. The direction of the bracket clamp interface is consistent with that of the transverse support beam 12. Pressing down the two longitudinal support beams 2 allows them to engage with the transverse support beam 12 through the bracket clamp interface, resulting in the following state: Figure 26 As shown in the diagram, the transverse support 1 and the longitudinal support beam 2 are stably connected.

[0109] observe Figure 21 , Figure 23 and Figure 25 The relative position of the middle frame protrusion 246 and the bed frame column 11 shows that the sleeve part rotates 90° during the change of the longitudinal support beam from the folded state to the open state. At this time, the short axis of the plastic inner sleeve 242 without elastic deformation is in the same direction as the long axis of the sleeve section 111. At this time, the plastic inner sleeve 242 is subjected to the greatest pressure from the rigid rotating tube 241 and the sleeve section 111, and the friction between the plastic inner sleeve 242 and the sleeve section 111 is the greatest, so the connection stability is the highest.

[0110] Next, in sequence as follows Figure 27 , Figure 28 as well as Figure 1 As shown, install the intermediate support 3, the transverse reinforcing beam 4, and the longitudinal reinforcing beam 5 to complete the assembly of the folding bed frame.

[0111] Example 2

[0112] The main difference between Example 2 and Example 1 is that the structure of the sleeve part is different and the bed frame column is provided with positioning rivets 115.

[0113] This application includes two transverse supports 1, one for the headboard and one for the footboard.

[0114] like Figures 32-34 As shown, the bed frame uprights 11 at the foot of the bed have no upper uprights 112. The two lower uprights 114 are connected in the middle by a transverse support beam 12. The lower uprights 114 are provided with positioning rivets 115 at their upper ends. The positioning rivets 115 penetrate the lower uprights 114 so that both ends protrude from the outer wall of the lower uprights 114. The upper end of the lower uprights 114 forms an elliptical sleeve section 111.

[0115] The bed frame uprights 11 of the transverse support 1 at the head of the bed are formed by inserting an upper upright 112 and a lower upright 114. The upper end of the lower upright 114 at the head of the bed is fitted with a positioning rivet 115. Figures 35-37 The specific structure of the upper uprights 112 and the headboard crossbar 13 is shown. The two upper uprights 112 are connected by a headboard crossbar 13. Each upper upright 112 has an upright slot 116 extending upwards from its bottom surface for insertion into the lower upright 114. Each upper upright 112 has a positioning slot 113 at its lower end, facing upwards, such as... Figure 40 and Figure 41 As shown, the lower column 114 is inserted into the upper column 112 through the column slot 116, and the positioning rivet 115 engages with the positioning bayonet 113.

[0116] Furthermore, the lower end of the upper column 112 with the column slot 116 has an elliptical cross-section, and the lower column 114 also has an elliptical cross-section between its insertion part with the column slot 116 and its connection part with the transverse support beam 12. These two parts together constitute the socket section 111.

[0117] Because the length of the positioning rivet 115 protruding from the upper end of the lower column 114 is greater than the thickness of the positioning slot 113, when the positioning rivet 115 engages with the positioning slot 113, one end of the positioning rivet 115 will still partially protrude from the positioning slot 113 (not shown in the figure), that is, the positioning rivet 115 protrudes outward from the sleeve section 111. Therefore, in this embodiment, the inner wall of the plastic inner sleeve 242 is provided with a... Figures 29-31 The positioning groove 243 shown is used to engage the end of the positioning rivet 115 away from the bed frame column 11. The positioning rivet 115 can rotate horizontally and move vertically relative to the sleeve along the positioning groove 243.

[0118] Specifically, the starting end of the positioning groove 243 is located on the top surface of the plastic inner sleeve 242. The positioning groove 243 extends downward from this starting end and then extends horizontally along the inner wall of the plastic inner sleeve 242. In the folded state, the positioning rivet 115 is located at the end of the positioning groove 243 away from the starting end. Then, during the opening process, the positioning rivet 115 undergoes a horizontal displacement along the positioning groove 243 equivalent to 1 / 4 of the inner circumference of the plastic inner sleeve 242. After the folding bed frame is fully opened, the longitudinal support beam 2 is pressed downward, and the positioning rivet 115 undergoes an upward relative displacement relative to the plastic inner sleeve 242 along the positioning groove 243. Finally, the bottom of the plastic inner sleeve 242 abuts against the top surface of the transverse support beam 12, and the positioning rivet 115 is located at the starting end of the positioning groove 243. The positioning rivet 115 and the positioning groove 243 cooperate to restrict the horizontal rotation of the longitudinal support beam 2 relative to the bed frame upright 1112, so that the folding bed frame is stably kept in the open state.

[0119] The assembly method of the folding bed frame provided in Example 2 will be described below:

[0120] First refer to Figure 38 and Figure 39 Two longitudinal support beams 2 are respectively fitted onto the lower column 114 through the rigid rotating tube 241 and the plastic inner sleeve 242 and the sleeve section 111. At this time, in order to prevent interference between the longitudinal support beams 2, the heights of the two longitudinal support beams 2 need to be staggered. As can be seen from the figure, through the above setting, both longitudinal support beams 2 can be completely folded. At this time, the longitudinal support beams 2, the lower column 114 and the transverse support beam 12 are folded and their length in the longitudinal direction is approximately the sum of the diameters of the two lower columns 114.

[0121] Please refer to the following. Figure 40 and Figure 41 The upper column 112 is inserted into the lower column 114 through the column slot, and at the same time, the upper column 112 is sleeved with the sleeve part.

[0122] Then please see Figures 42-44 Pulling the transverse support 1 causes the two transverse supports 1 to move away from each other. During this process, the transverse support 1 drives the longitudinal support beam 2 to open, and the sleeve part rotates relative to the bed frame column 11. Until the longitudinal support beam 2 is fully opened, the two main sections 21 of the longitudinal support beam 2 are aligned in a straight line. During this process, the positioning rivet 115 moves relative to the plastic inner sleeve 242 on the horizontal plane along the positioning groove 243, and the plastic inner sleeve does not move in the height direction. Then, pressing down the two longitudinal support beams 2 causes the positioning rivet 115 to move upward relative to the plastic inner sleeve 242 along the positioning groove 243, resulting in... Figure 43 As shown in the diagram, the positioning rivet 115 engages with the positioning groove 243, preventing the longitudinal support beam 2 from rotating horizontally and achieving a stable connection.

[0123] Next, as Figure 43 and Figure 44 As shown, the folding bed frame can be assembled by installing the middle bracket 3.

[0124] Example 3

[0125] The difference between Example 3 and Example 2 is that the structure of the positioning groove 243 is different.

[0126] Figures 46-48 The shape of the positioning groove 243 in this embodiment is shown. The starting end of the positioning groove 243 is located on the top surface of the plastic inner sleeve 242, and then extends downwards at an angle along the inner wall of the plastic inner sleeve 242. In the folded state, the positioning rivet 115 is located at the end of the positioning groove 243 away from the starting end. Then, during the opening process, the positioning rivet 115 rotates upwards relative to the plastic inner sleeve 242 along the positioning groove 243. Finally, the bottom of the plastic inner sleeve 242 abuts against the top surface of the transverse support beam 12, and the positioning rivet 115 is located at the starting end of the positioning groove 243. The positioning rivet 115 and the positioning groove 243 cooperate to restrict the horizontal rotation of the longitudinal support beam 2 relative to the bed frame uprights 1112, so that the folding bed frame is stably kept in the open state.

[0127] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0128] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0129] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A folding bed frame comprising two laterally disposed transverse supports and two longitudinally disposed parallel support beams, characterized in that, Two of the transverse supports are respectively located at two longitudinal sides of the folding bed frame and extend along a transverse direction of the folding bed frame, two ends of the longitudinal support beam are respectively rotationally connected with end portions of the two transverse supports, and the longitudinal support beam is foldable.

2. The foldable bed frame of claim 1, wherein, The transverse support has bed frame columns arranged along a height direction at two ends thereof, at least a portion of the bed frame columns forms a sleeving section, and an outer diameter section of the sleeving section is in an elliptical shape; Two ends of the longitudinal support beam are respectively provided with rigid rotating tubes, the rigid rotating tubes are internally sleeved with plastic inner sleeves, an inner diameter section of the plastic inner sleeves is in an elliptical shape matched with the sleeving section, an outer diameter section of the plastic inner sleeves is in a circular shape, and an inner diameter section of the rigid rotating tubes is in a circular shape matched with the outer diameter section of the plastic inner sleeves; When the folding bed frame is in a folded state, a long axis of the inner diameter section of the plastic inner sleeves is in the same direction as a long axis of the outer diameter section of the sleeving section, and when the folding bed frame is in an unfolded state, the long axis of the inner diameter section of the plastic inner sleeves is in the same direction as a short axis of the outer diameter section of the sleeving section.

3. The foldable bed frame of claim 2, wherein, The sleeving section is located at an upper end of the bed frame column, and the longitudinal support beam is sleeved at the sleeving section.

4. The foldable bed frame of claim 3, wherein, The bed frame column is obtained by inserting an upper column and a lower column, and the sleeving section is located at an insertion position of the upper column and the lower column.

5. A folding bed frame as claimed in any one of claims 2 to 4, wherein, The transverse support further comprises a transverse support beam, and two ends of the transverse support beam are respectively fixedly connected with one of the bed frame columns.

6. The foldable bed frame of claim 5, wherein, Lower ends of the rigid rotating tubes and the plastic inner sleeves are respectively formed with support clamping interfaces at corresponding positions of side walls thereof, the support clamping interfaces are capable of being clamped with the transverse support beam, the support clamping interfaces are directly opposite to the transverse support beam when the folding bed frame is in the unfolded state, and the support clamping interfaces are clamped with the transverse support beam.

7. The foldable bed frame of any one of claims 2-4, wherein, The bed frame column is further provided with a positioning rivet, the positioning rivet is located at the sleeving section, or a distance between the positioning rivet and the sleeving section is less than a length of the plastic inner sleeve in the height direction. An inner wall of the plastic inner sleeve has a positioning groove, and an end of the positioning rivet away from the bed frame column is clamped in the positioning groove. The positioning rivet is capable of being displaced in a horizontal direction and / or a height direction relative to the sleeving section along the positioning groove.

8. The foldable bed frame of claim 7, wherein, The bed frame column is obtained by inserting an upper column and a lower column, and the sleeving section is located at an insertion position of the upper column and the lower column. A lower end of the upper column is in a hollow tubular structure and is provided with a positioning socket, and the positioning rivet is arranged at an upper end of the lower column. The upper end of the lower column is inserted into the lower end of the upper column, and the positioning rivet is clamped with the positioning socket.

9. The foldable bed frame of any one of claims 1-4, wherein, The longitudinal support beam is obtained by sequentially connecting at least two body sections in a head-to-tail manner, and adjacent two of the body sections are hingedly connected. When the folding bed frame is in the folded state, the body sections of the folding bed frame are overlapped, and when the folding bed frame is in the unfolded state, the body sections of the folding bed frame are opened to be in a straight line shape.

10. The foldable bed frame of claim 9, wherein, The longitudinal support beams comprise two main sections and a U-shaped connecting piece, the two main sections are hinged by the U-shaped connecting piece and can rotate in horizontal direction with the connection with the U-shaped connecting piece as the axis, the openings of the U-shaped connecting pieces on the two longitudinal support beams are oppositely arranged, when the folding bed frame is in the folded state, the longitudinal support beams are folded and accommodated between the two lateral supports.

11. The foldable bed frame of claim 10, wherein, The folding bed frame further comprises a middle support, the middle support comprises two support legs and a reinforcing pipe, two ends of the reinforcing pipe are respectively connected with the middle part of one of the support legs; The U-shaped connecting pieces are further provided with support leg insertion slots with openings downward, the support leg insertion slots on the two U-shaped connecting pieces are respectively inserted with the upper ends of one of the support legs.

12. The foldable bed frame of claim 1, wherein, Further comprising a plurality of parallel arranged lateral reinforcing beams, two ends of the lateral reinforcing beams are respectively connected with the longitudinal support beams through clamping structure.

13. The foldable bed frame of claim 12, wherein, Further comprising a plurality of parallel arranged longitudinal reinforcing beams, two ends of the longitudinal reinforcing beams are respectively connected with the lateral support beams or the lateral reinforcing beams through insertion structure.

14. The foldable bed frame of claim 4, wherein, The two upper vertical columns of the lateral support are connected by at least one head cross bar.

15. The foldable bed frame of claim 14, wherein, The upper vertical columns are connected by two head cross bars, and a plurality of head reinforcing bars parallel in the height direction are arranged between the head cross bars.

16. A bedding article characterised in that, The folding bed frame of any one of claims 1-15.

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