Folding bed frame connection structure, bed frame and bedding

Abstract

This application belongs to the field of furniture equipment technology, and particularly relates to a folding bed frame connection structure, a bed frame, and a bed. The folding bed frame connection structure includes a first connector, two first tubes, a second tube, a second connector, and a third tube. The first connector includes a transition portion and a support portion, with the transition portion connected to the support portion. The two first tubes and the transition portion are pivotally connected at both ends, with the connection point between the two first tubes and the transition portion located on the side of the centerline of the two first tubes facing the support portion. The second tube is fixed to the support portion. One end of the second connector is detachably locked to the junction of the two first tubes, and the other end of the second connector is fixed to the second tube. The third tube supports the first connector. By simply releasing the second connector from locking the two first tubes, the two first tubes can be rotated relative to the first connector to a folded state, simplifying the structural design of the folding bed frame connection structure and saving manufacturing costs.

Description

Technical Field

[0001] This application belongs to the field of furniture and equipment technology, and in particular relates to a folding bed frame connection structure, a bed frame, and a bed. Background Technology

[0002] In the bedding industry, bed frames are typically constructed from multiple foldable tubes. The folding and fitting of these tubes requires connectors, which often connect two horizontal tubes and one vertical tube.

[0003] In related technologies, since connectors need to connect multiple pipes, in order to ensure the reliability of the connection, the structure of the connectors is often designed to be relatively complex. When connecting pipes, there are many connection points, the connection operation steps are complicated, and the manufacturing cost is high. Summary of the Invention

[0004] The purpose of this application is to provide a folding bed frame connection structure, a bed frame, and a bed, which aims to solve at least one of the above-mentioned problems.

[0005] In a first aspect, embodiments of this application provide a folding bed frame connection structure, applied to the folding connection of the front or rear beams of a bed frame, including: A first connector, comprising a transition portion and a support portion, wherein the middle portion of the transition portion is connected to the support portion; Two first pipe fittings are pivotally connected to both ends of the adapter, and the connection positions of the two first pipe fittings and the adapter are both located on the side of the centerline of the two first pipe fittings facing the support. The second pipe fitting is fixedly connected to the support portion; The second connector has one end detachably locked to the junction of the two first pipe fittings, and the other end fixed to the second pipe fitting. The third pipe fitting is supported on the side of the first connector facing away from the two first pipe fittings.

[0006] The folding bed frame connection structure provided in this embodiment of the application has two aspects: firstly, the two first tubes are pivotally connected to the two ends of the transition portion of the first connector; secondly, the joint of the two first tubes is locked by the second connector. Thus, when the folding bed frame connection structure needs to be in the unfolded state, the two first tubes remain extended by the locking of the second connector, forming the unfolded state of the folding bed frame connection structure with the second and third tubes. When the folding bed frame connection structure needs to be in the folded state, simply releasing the locking of the second connector on the two first tubes allows the two first tubes to rotate relative to the first connector to the folded state. This simple and reliable method achieves the switching between the unfolded and folded states of the folding bed frame connection structure, simplifying its structural design and saving manufacturing costs. By ensuring that the connection points of the two first tubes and the adapter are both located on the side of the center line of the two first tubes facing the support, the two first tubes can be brought closer to each other when rotated to the folded state, and the size of the adapter can also be effectively reduced. This also effectively reduces the volume of the folding bed frame connection structure in the folded storage state.

[0007] In some embodiments of this application, the folding bed frame connection structure further includes two rotating pins. The two ends of the first connector are provided with connecting holes. The two connecting holes are located on the side of the center line of the two first tubes facing the support. The ends of the two first tubes facing the first connector are provided with through holes. Each of the two rotating pins passes through the corresponding connecting hole and the corresponding through hole, so that the two first tubes and the adapter are connected.

[0008] In some embodiments of this application, the second connector further includes a fixing plate and a locking pin. A through-hole notch is provided at the junction of the two first tubes. The two through-hole notches are joined together to form a through-pin hole. The locking pin passes through the through-pin hole and is connected to one end of the fixing plate. The other end of the fixing plate is fixed to the second tube.

[0009] In some embodiments of this application, the second connector further includes a fixing plate and a locking pin. A through-hole notch is provided at the junction of the two first tubes. The two through-hole notches are joined together to form a through-pin hole. One end of the fixing plate is bent to form a limiting piece. The limiting piece is attached to the junction of the two first tubes. The locking pin passes through the limiting piece and the through-pin hole and is locked to the support portion.

[0010] In some embodiments of this application, oblique cuts are provided at the junction of the two first pipes at a position spaced apart from the through hole notch, and the two oblique cuts together form a rotation clearance groove.

[0011] In some embodiments of this application, the adapter portion has a clearance notch for avoiding the locking pin at the position corresponding to the through-pin hole, and the opening area of ​​the clearance notch is larger than the opening area of ​​the through-pin hole.

[0012] In some embodiments of this application, a locking hole is provided at one end of the fixing plate and a fixing hole is provided at the other end of the fixing plate, and the end of the locking pin passes through the locking hole and is locked to the fixing plate.

[0013] In some embodiments of this application, the second connector further includes an adjusting pin, and the second tube has a waist-shaped hole at the position corresponding to the fixing hole. The length direction of the waist-shaped hole is parallel to the axial direction of the second tube. The adjusting pin passes through the waist-shaped hole and the fixing hole and is locked to the fixing plate.

[0014] In some embodiments of this application, the adapter is formed with a clamping groove for clamping two of the first pipes, and the connecting hole and the through hole notch are both formed through the two side walls of the clamping groove.

[0015] In some embodiments of this application, a portion of the fixing plate abuts against the adapter, another portion of the fixing plate is spaced apart from the second pipe, and a retaining rib is formed at the end of the fixing plate away from the adapter, the retaining rib abutting against the pipe wall of the second pipe.

[0016] Secondly, embodiments of this application also provide a folding bed frame connection structure, applied to the folding connection of the left or right beam of the bed frame, including: A first connector, comprising a transition portion and a support portion, wherein the middle portion of the transition portion is connected to the support portion; Two first pipe fittings are pivotally connected to both ends of the adapter, and the connection positions of the two first pipe fittings and the adapter are both located on the side of the centerline of the two first pipe fittings facing the support. The second pipe fitting is fixedly connected to the support portion; The second connector has one end locked to the junction of the two first pipe fittings, and the other end fixed to the second pipe fitting. The third pipe fitting is supported on the side of the first connector facing away from the two first pipe fittings; The second connector also includes a fixing plate and a locking pin. A through hole notch is provided at the junction of the two first tubes. The two through holes are joined together to form a through pin hole. One end of the fixing plate is bent to form a limiting piece. The limiting piece is attached to the junction of the two first tubes. The locking pin passes through the limiting piece and the through pin hole and is locked to the support part.

[0017] The folding bed frame connection structure provided in this application embodiment has two aspects: firstly, the two first tubes are pivotally connected to the two ends of the transition part of the first connector; secondly, the joint of the two first tubes is locked by the second connector. Thus, when the folding bed frame connection structure needs to be in the unfolded state, the limiting piece provided at one end of the fixing plate of the second connector can abut against the joint of the two first tubes to achieve initial limiting of the two first tubes. Then, a locking pin passes through the through-pin hole formed by the combination of the limiting piece and the through-hole notch of the two first tubes, thus simply and reliably achieving the locking engagement of the two first tubes relative to the first connector.

[0018] Thirdly, this application embodiment also provides a bed frame including the aforementioned folding bed frame connection structure. The bed frame provided in this application embodiment, because it includes the aforementioned folding bed frame connection structure, which has the advantages of simple and reliable structure, low manufacturing cost, and small size, thus makes the bed frame of this embodiment have better structural reliability and lower manufacturing cost.

[0019] In some embodiments of this application, the outline of the second connector projected along the length direction of the third pipe is located within the opening of the third pipe facing the second connector.

[0020] Fourthly, this application embodiment also provides a bed, including the aforementioned folding bed frame connection structure. The bed provided in this application embodiment, because it includes the aforementioned folding bed frame connection structure, which has the advantages of simple and reliable structure, low manufacturing cost, and small size, also makes the bed of this embodiment have better structural reliability and lower manufacturing cost. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the bed frame provided in an embodiment of this application; Figure 2 This is a schematic diagram of the folding bed frame connection structure provided in the embodiments of this application; Figure 3 for Figure 2 An exploded structural diagram of the folding bed frame connection structure shown. Figure 4 for Figure 2 A cross-sectional schematic diagram of the connecting structure of the folding bed frame shown; Figure 5 for Figure 2 A schematic diagram of the front view of the folding bed frame connection structure shown. Figure 6 This is another structural schematic diagram of the folding bed frame connection structure provided in the embodiments of this application; Figure 7 for Figure 6 An exploded structural diagram of the folding bed frame connection structure shown. Figure 8 An exploded structural diagram of the first tube and the first connector of the folding bed frame connection structure provided in the embodiments of this application; Figure 9 This is a schematic diagram of the structure of the first connector of the folding bed frame connection structure provided in the embodiments of this application; Figure 10 This is a schematic diagram of the structure of the second connector of the folding bed frame connection structure provided in the embodiments of this application; Figure 11 Another schematic diagram of the second connector of the folding bed frame connection structure provided in the embodiments of this application.

[0023] The following are the labeling elements in the figure: 100-Bed frame; 10-Folding bed frame connection structure; 11-First connector. 12-First pipe fitting; 13-Second pipe fitting; 14-Second connector 15-Third pipe fitting 111-Adapter 112-Support 113-Connecting hole; 114-Rotating pin; 115-Allowing notch 116-Clamping slot; 121-Through hole; 122-Pin hole 123-Rotation clearance groove; 131-Oval hole; 141-Fixing plate 142-Adjusting pin; 143-Limiting piece; 144-Locking hole 145-Fixing hole; 146-Supporting rib; 147-Locking pin. Detailed Implementation

[0024] Embodiments of this application are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0025] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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 this application.

[0026] Furthermore, the terms "first" and "second" are configured for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In related technologies, since connectors need to connect multiple pipes, in order to ensure connection reliability, the structure of connectors is often designed to be relatively complex and large in size. When connecting pipes, there are many connection points, the connection operation steps are complicated, and the manufacturing cost is high.

[0029] Therefore, this application provides a folding bed frame connection structure 10, which can save manufacturing costs and optimize volume while having a simple and reliable structural design.

[0030] Specifically, in the first aspect, such as Figures 1-3 As shown, this application embodiment provides a folding bed frame connection structure 10, applied to the folding connection of the front or rear beams of the bed frame 100, including: The first connector 11 includes a transition part 111 and a support part 112, with the middle part of the transition part 111 connected to the support part 112. Two first pipe fittings 12 are pivotally connected to both ends of the adapter 111, and the connection positions of the two first pipe fittings 12 and the adapter 111 are all located on the side of the center line of the two first pipe fittings 12 facing the support 112. The second pipe fitting 13 is fixedly connected to the support part 112; The second connector 14 has one end detachably locked to the junction of the two first pipe fittings 12, and the other end of the second connector 14 is fixed to the second pipe fitting 13. The third pipe fitting 15 is supported on the side of the first connector 11 facing away from the two first pipe fittings 12.

[0031] The following further describes the folding bed frame connecting structure 10 provided in this application embodiment: The folding bed frame connecting structure 10 provided in this application embodiment has two first tubes 12 that are pivotally connected to both ends of the transition portion 111 of the first connector 11. Furthermore, the junction of the two first tubes 12 is locked by the second connector 14. Thus, when the folding bed frame connecting structure 10 needs to be in the unfolded state, the two first tubes 12 remain extended by the locking of the second connector 14, forming the unfolded state of the folding bed frame connecting structure 10 with the second tube 13 and the third tube 15. When the folding bed frame connecting structure 10 needs to be in the folded state, simply releasing the locking of the second connector 14 on the two first tubes 12 allows the two first tubes 12 to rotate relative to the first connector 11 to the folded state. This simply and reliably achieves the switching between the unfolded and folded states of the folding bed frame connecting structure 10, simplifying the structural design of the folding bed frame connecting structure 10 and saving manufacturing costs. By ensuring that the connection points of the two first tubes 12 and the adapter 111 are both located on the side of the center line of the two first tubes 12 facing the support 112, the two first tubes 12 can be closer to each other when rotated to the folded state, and the size of the adapter 111 can also be effectively reduced. This also effectively reduces the volume of the folding bed frame connection structure 10 in the folded storage state.

[0032] In some embodiments of this application, such as Figures 3-5As shown, the folding bed frame connection structure 10 also includes two rotating pins 114. The two ends of the first connector 11 are provided with connecting holes 113. The two connecting holes 113 are located on the side of the center line of the two first tubes 12 facing the support part 112. The ends of the two first tubes 12 facing the first connector 11 are provided with through holes 121. Each of the two rotating pins 114 passes through the corresponding connecting hole 113 and the corresponding through hole 121, so that the two first tubes 12 and the adapter part 111 are connected.

[0033] Specifically, as a specific rotational connection method between the two first pipe fittings 12 and the first connector 11, the two first pipe fittings 12 are rotatably connected to the first connector 11 by means of a rotating pin 114 passing through a through hole 121 and a connecting hole 113. In this way, on the one hand, a simple and reliable rotational connection between the two first pipe fittings 12 and the first connector 11 is achieved, and on the other hand, the reliability of the rotational fit is improved.

[0034] Alternatively, in another rotatable connection method between the two first pipes 12 and the first connector 11, the two first pipes 12 can also be rotatably connected to the first connector 11 through the through hole 121 and the connecting hole 113 via the damping shaft, so that the two first pipes 12 can be held in the corresponding position relatively stably after being extended or folded into place, preventing loosening and thus reducing the probability of noise generation.

[0035] In some embodiments of this application, such as Figures 3-5 As shown, the second connector 14 also includes a fixing plate 141 and a locking pin 147. A through hole notch is provided at the junction of the two first pipes 12. The two through hole notches are joined together to form a through pin hole 122. The locking pin 147 passes through the through pin hole 122 and is connected to one end of the fixing plate 141. The other end of the fixing plate 141 is fixed to the second pipe 13.

[0036] Specifically, when the second connector 14 is in operation, one end of its fixing plate 141 engages with the locking pin 147 to lock the two first pipes 12, while the other end of the fixing plate 141 is used to fix the second pipe 13. By creating a through hole notch at the junction of the two first pipes 12, the two through hole notches are joined together to form a through pin hole 122. Thus, the locking pin 147 can be inserted through the through pin hole 122 to lock the two first pipes 12. The locking structure is simple and reliable. This not only saves the manufacturing cost of the folding bed frame connection structure 10, but also significantly improves the overall structural reliability of the folding bed frame connection structure 10.

[0037] In some embodiments of this application, such as Figure 6 and Figure 7As shown, the second connector 14 also includes a fixing plate 141 and a locking pin 147. A through hole notch is provided at the junction of the two first tubes 12. The two through hole notches are joined together to form a through pin hole 122. One end of the fixing plate 141 is bent to form a limiting piece 143. The limiting piece 143 is attached to the junction of the two first tubes 12. The locking pin 147 passes through the limiting piece 143 and the through pin hole 122 and is locked to the support part 112.

[0038] Specifically, when the folding bed frame connecting structure 10 needs to be in the unfolded state, the limiting piece 143 provided at one end of the fixing plate 141 of the second connector 14 can abut against the junction of the two first tubes 12 to achieve initial limiting of the two first tubes 12. Then, the locking pin 147 passes through the through pin hole 122 formed by the combination of the limiting piece 143 and the through hole notch of the two first tubes 12. In this way, the locking engagement of the two first tubes 12 relative to the first connector 11 is simply and reliably achieved.

[0039] In some embodiments of this application, such as Figure 8 As shown, the two first pipe fittings 12 have beveled cuts at the junction of the two pipe fittings 12, spaced apart from the through hole notch. The two beveled cuts together form a rotation clearance groove 123. For example, the rotation clearance groove 123 is approximately triangular in shape.

[0040] Specifically, by setting a bevel, the edges of the two first tubes 12 facing each other can avoid interference during the unlocking and folding process, allowing the rotation and folding of the two first tubes 12 to proceed smoothly. At the same time, the presence of the bevel also eliminates the need to reserve space between the two first tubes 12 for rotation, allowing them to be placed closer together, which also helps to optimize the volume of the folding bed frame 100 structure.

[0041] In some embodiments of this application, such as Figure 8 As shown, the adapter 111 has a clearance notch 115 for avoiding the locking pin 147 at the position corresponding to the through-hole 122. The opening area of ​​the clearance notch 115 is larger than the opening area of ​​the through-hole 122. For example, the clearance notch 115 is a semi-open circular notch.

[0042] Specifically, by making the opening area of ​​the clearance notch 115 larger than the opening area of ​​the through hole 122, when the locking pin 147 is inserted into the through hole 122, its pin wall can fully contact the hole wall of the through hole 122, while avoiding contact with the edge of the clearance notch 115. In this way, the force of the locking pin 147 can be fully applied to the two first pipes 12, thereby achieving a more reliable locking of the two first pipes 12.

[0043] In some embodiments of this application, such as Figures 8-10As shown, a locking hole 144 is provided at one end of the fixing plate 141, and a fixing hole 145 is provided at the other end of the fixing plate 141. The end of the locking pin 147 passes through the locking hole 144 and is locked to the fixing plate 141. This allows the locking pin 147 to be reliably connected to the fixing plate 141.

[0044] In some embodiments of this application, such as Figure 3 As shown, the second connector 14 also includes an adjusting pin 142. The second tube 13 has a waist-shaped hole 131 at the position corresponding to the fixing hole 145. The length direction of the waist-shaped hole 131 is parallel to the axial direction of the second tube 13. The adjusting pin 142 passes through the waist-shaped hole 131 and the fixing hole 145 and is locked to the fixing plate 141.

[0045] Specifically, by setting the waist-shaped hole 131, the adjusting pin 142 is fitted into the waist-shaped hole 131, which can help absorb the assembly error between the second connector 14 and the second tube 13, and facilitate the easy assembly of the folding bed frame connection structure 10.

[0046] In some embodiments of this application, such as Figure 9 As shown, the adapter 111 has a clamping groove 116 for clamping two first pipes 12. The connecting hole 113 and the through hole notch are both formed on both sides of the clamping groove 116.

[0047] Specifically, by clamping the two first pipes 12 into the clamping groove 116, the connection stability between the two first pipes 12 and the adapter 111 is improved, making it less likely for the two first pipes 12 to shake at the connection with the adapter 111.

[0048] In some embodiments of this application, such as Figure 10 and Figure 11 As shown, a portion of the fixing plate 141 abuts against the adapter 111, while another portion of the fixing plate 141 is spaced apart from the second pipe fitting 13. A retaining rib 146 is formed at the end of the fixing plate 141 away from the adapter 111, and the retaining rib 146 abuts against the pipe wall of the second pipe fitting 13. The design of the retaining rib 146 allows for the spaced-apartment formation between the fixing plate 141 and the second pipe fitting 13. This ensures reliable abutment between the fixing plate 141 and the second pipe fitting 13, and also effectively avoids the step difference formed between the first connector 11 and the second pipe fitting 13, reducing the assembly difficulty of the fixing plate 141 with the first connector 11 and the second pipe fitting 13.

[0049] Secondly, such as Figure 6 and Figure 7 As shown, this application embodiment also provides a folding bed frame connection structure 10, applied to the folding connection of the left or right beam of the bed frame 100, including: The first connector 11 includes a transition part 111 and a support part 112, with the middle part of the transition part 111 connected to the support part 112. Two first pipe fittings 12 are pivotally connected to both ends of the adapter 111, and the connection positions of the two first pipe fittings 12 and the adapter 111 are all located on the side of the center line of the two first pipe fittings 12 facing the support 112. The second pipe fitting 13 is fixedly connected to the support part 112; The second connector 14 has one end locked to the junction of the two first pipe fittings 12, and the other end fixed to the second pipe fitting 13. The third pipe fitting 15 is supported on the side of the first connector 11 facing away from the two first pipe fittings 12; The second connector 14 also includes a fixing plate 141 and a locking pin 147. A through hole notch is provided at the junction of the two first tubes 12. The two through hole notches are joined together to form a through pin hole 122. One end of the fixing plate 141 is bent to form a limiting piece 143. The limiting piece 143 is attached to the junction of the two first tubes 12. The locking pin 147 passes through the limiting piece 143 and the through pin hole 122 and is locked to the support part 112.

[0050] The folding bed frame connection structure 10 provided in this application embodiment has two first tubes 12 that are pivotally connected to the two ends of the transition part 111 of the first connector 11, respectively. On the other hand, the joint of the two first tubes 12 is locked by the second connector 14. Thus, when the folding bed frame connection structure 10 needs to be in the unfolded state, the limiting piece 143 provided at one end of the fixing plate 141 of the second connector 14 can abut against the joint of the two first tubes 12 to achieve initial limiting of the two first tubes 12. Then, the locking pin 147 passes through the through pin hole 122 formed by the combination of the limiting piece 143 and the through hole notch of the two first tubes 12. In this way, the locking engagement of the two first tubes 12 relative to the first connector 11 is simply and reliably achieved.

[0051] Thirdly, this application embodiment also provides a bed frame 100, including the aforementioned folding bed frame connecting structure 10. The bed frame 100 provided in this application embodiment, because it includes the aforementioned folding bed frame connecting structure 10, which has the advantages of simple and reliable structure, low manufacturing cost, and small size, thus makes the bed frame 100 of this embodiment have better structural reliability and lower manufacturing cost.

[0052] In some embodiments of this application, the outline of the second connector 14 projected along the length of the third tube 15 is located within the opening of the third tube 15 facing the second connector 14. This facilitates the overall storage of the folding bed frame connection structure 10.

[0053] Fourthly, this application embodiment also provides a bed, including the aforementioned folding bed frame connection structure 10. The bed provided in this application embodiment, because it includes the aforementioned folding bed frame connection structure 10, which has the advantages of simple and reliable structure, low manufacturing cost, and small size, also makes the bed of this embodiment have better structural reliability and lower manufacturing cost.

[0054] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A folding bed frame connection structure, used for folding and connecting the front or rear beams of a bed frame, characterized in that, include: A first connector, comprising a transition portion and a support portion, wherein the middle portion of the transition portion is connected to the support portion; Two first pipe fittings are pivotally connected to both ends of the adapter, and the connection positions of the two first pipe fittings and the adapter are both located on the side of the centerline of the two first pipe fittings facing the support. The second pipe fitting is fixedly connected to the support portion; The second connector has one end detachably locked to the junction of the two first pipe fittings, and the other end fixed to the second pipe fitting. The third pipe fitting is supported on the side of the first connector facing away from the two first pipe fittings.

2. The folding bed frame connection structure according to claim 1, characterized in that: The folding bed frame connection structure also includes two rotating pins. The two ends of the first connector are provided with connecting holes. The two connecting holes are located on the side of the center line of the two first tubes facing the support part. The ends of the two first tubes facing the first connector are provided with through holes. Each of the two rotating pins passes through the corresponding connecting hole and the corresponding through hole, so that the two first tubes and the adapter part are connected.

3. The folding bed frame connection structure according to claim 2, characterized in that: The second connector also includes a fixing plate and a locking pin. A through hole notch is provided at the joint of the two first pipes. The two through holes notches are joined together to form a through pin hole. The locking pin passes through the through pin hole and is connected to one end of the fixing plate. The other end of the fixing plate is fixed to the second pipe.

4. The folding bed frame connection structure according to claim 2, characterized in that: The second connector also includes a fixing plate and a locking pin. A through hole notch is provided at the junction of the two first tubes. The two through holes are joined together to form a through pin hole. One end of the fixing plate is bent to form a limiting piece. The limiting piece is attached to the junction of the two first tubes. The locking pin passes through the limiting piece and the through pin hole and is locked to the support part.

5. The folding bed frame connection structure according to claim 3, characterized in that: At the junction of the two first pipe fittings, a bevel is provided at a position between the through hole and the notch, and the two bevels together form a rotation clearance groove.

6. The folding bed frame connection structure according to claim 3, characterized in that: The adapter has a clearance notch corresponding to the position of the through-pin hole to avoid the locking pin, and the opening area of ​​the clearance notch is larger than the opening area of ​​the through-pin hole.

7. The folding bed frame connection structure according to claim 3, characterized in that: One end of the fixing plate has a locking hole, and the other end of the fixing plate has a fixing hole. The end of the locking pin passes through the locking hole and is locked to the fixing plate.

8. The folding bed frame connection structure according to claim 7, characterized in that: The second connector also includes an adjusting pin. The second tube has a waist-shaped hole at the position corresponding to the fixing hole. The length direction of the waist-shaped hole is parallel to the axial direction of the second tube. The adjusting pin passes through the waist-shaped hole and the fixing hole and is locked to the fixing plate.

9. The folding bed frame connection structure according to any one of claims 3 to 8, characterized in that: The adapter has a clamping groove for clamping the two first pipes. The connecting hole and the through hole notch are both formed through the two sides of the clamping groove.

10. The folding bed frame connection structure according to any one of claims 3 to 8, characterized in that: A portion of the fixing plate is attached to the adapter, and another portion of the fixing plate is spaced apart from the second pipe. A retaining rib is formed at the end of the fixing plate away from the adapter, and the retaining rib abuts against the pipe wall of the second pipe.

11. A folding bed frame connection structure, applied to the folding connection of the left or right beam of a bed frame, characterized in that, include: A first connector, comprising a transition portion and a support portion, wherein the middle portion of the transition portion is connected to the support portion; Two first pipe fittings are pivotally connected to both ends of the adapter, and the connection positions of the two first pipe fittings and the adapter are both located on the side of the centerline of the two first pipe fittings facing the support. The second pipe fitting is fixedly connected to the support portion; The second connector has one end locked to the junction of the two first pipe fittings, and the other end fixed to the second pipe fitting. The third pipe fitting is supported on the side of the first connector facing away from the two first pipe fittings; The second connector also includes a fixing plate and a locking pin. A through hole notch is provided at the junction of the two first tubes. The two through holes are joined together to form a through pin hole. One end of the fixing plate is bent to form a limiting piece. The limiting piece is attached to the junction of the two first tubes. The locking pin passes through the limiting piece and the through pin hole and is locked to the support part.

12. A bed frame, characterized in that: Includes the folding bed frame connection structure as described in any one of claims 1 to 11.

13. The bed frame according to claim 12, characterized in that; The outline of the second connector projected along the length of the third pipe is located within the opening of the third pipe facing the second connector.

14. A bed, characterized in that: Includes the folding bed frame connection structure as described in any one of claims 1 to 11.

Images