Rod body connecting structure of bedstead, bedstead and sofa bed

Abstract

The utility model provides a rod body connecting structure of a bedstead, which comprises first rods, second rods and fixing pieces, the first rods and the second rods are perpendicular to each other, the second rods are connected between the first rods on the two sides, the rod surfaces of the first rods, opposite to the second rods, are provided with inserting through holes for the second rods to be inserted, and the rod surfaces of the first rods, opposite to the second rods, are provided with fixing through holes. The fixing through holes are smaller than the insertion through holes in area; the hole diameter of the insertion through hole in the axial direction of the first rod is larger than or smaller than the hole diameter perpendicular to the axial direction of the first rod; an inserting end is arranged at the end of the second rod, the section of the inserting end is consistent with the shape and size of the inserting through hole, and the length of the inserting end in the axial direction of the second rod is larger than the diameter of the first rod; the plug-in ends are matched with the plug-in through holes in a plug-in manner; the fixing piece penetrates through the fixing through hole and is limited by the rod surface where the fixing through hole is located; a connecting groove is formed in the end face of the inserting end in the axial direction of the second rod, and the fixing piece penetrates into the connecting groove and is detachably connected with the second rod. The utility model further provides a bed frame and a sofa bed.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture field especially relates to a pole body connecting structure of bed frame, bed frame and sofa bed. BACKGROUND

[0002] The bed frame pole body cannot be disassembled, which is common in traditional bed furniture. This design simplifies the assembly process and reduces costs, but also brings some inconvenience. The main disadvantages include: inconvenient transportation and storage due to the large overall size; difficult to clean, especially the area under the bed that is difficult to reach; limit the possibility of personalized adjustment and upgrade. In addition, this design may also cause maintenance difficulties, and once the pole body is damaged, the entire bed frame may need to be replaced.

[0003] Therefore, a detachable pole body connecting structure is needed to connect, for example, horizontal rods and vertical columns. Currently, the main method is to drill a through hole in the vertical column and insert the horizontal rod into the through hole for fixation. However, this connection method, due to the circular shape of the through hole, the horizontal rod is prone to rotating around the circumference under external force after connection with the vertical column, the connection is unstable, and the bed is prone to producing abnormal noise during use. SUMMARY

[0004] The utility model provides a pole body connecting structure of bed frame, bed frame and sofa bed, can improve the connection stability between pole bodies, avoid the abnormal noise of bed during use.

[0005] To solve the above technical problems, the utility model provides a pole body connecting structure of bed frame, which comprises a first pole and a second pole perpendicular to each other, the second pole is connected between the first poles on both sides, the first pole is provided with a plug-in through hole for the second pole relative to the pole surface of the second pole, and a fixed through hole is provided on the pole surface away from the second pole, the area of the fixed through hole is smaller than that of the plug-in through hole.

[0006] The hole diameter of the plug-in through hole along the axial direction of the first pole is greater than or less than the hole diameter perpendicular to the axial direction of the first pole; the end of the second pole is provided with a plug-in end, the cross section of the plug-in end is consistent with the shape and size of the plug-in through hole, and the length of the plug-in end along the axial direction of the second pole is greater than the diameter of the first pole; the plug-in end is plugged into the plug-in through hole.

[0007] It also includes a fixing part, which passes through the fixed through hole and is limited by the pole surface where the fixed through hole is located.

[0008] The end face of the plug-in end is provided with a connecting groove along the axial direction of the second pole, and the fixing part penetrates into the connecting groove and is detachably connected with the second pole.

[0009] In some embodiments, the insertion hole is in the shape of a racetrack or an ellipse.

[0010] In some embodiments, the insertion hole has a larger hole diameter along the axial direction of the first rod than along a direction perpendicular to the axial direction of the first rod.

[0011] In some embodiments, the transition section is connected to the rod body and the insertion end.

[0012] In some embodiments, the connection surface of the transition section and the insertion end is consistent with the cross section of the insertion end, and the cross sectional area of the transition section gradually decreases along the axial direction of the second rod and is consistent with the rod body.

[0013] In some embodiments, the fixing member is a bolt, and the connection groove is an internal thread groove.

[0014] In some embodiments, the first rod is arranged on the left handrail and the right handrail.

[0015] In some embodiments, the first rod is a vertical column arranged on the left handrail and the right handrail.

[0016] In some embodiments, the second rod is a horizontal rod connecting the left handrail and the right handrail.

[0017] In some embodiments, the second rod is provided with a support leg.

[0018] In some embodiments, the second rod is divided into a first part and a second part, and the first part and the second part are connected by a connecting member, and the support leg is arranged below the connecting member.

[0019] In some embodiments, the two ends of the connecting member are U-shaped openings, and one end of the first part and the second part is respectively embedded in the U-shaped opening and fixed with the connecting member.

[0020] The utility model also provides a bed frame, its characterized in be connected with the rod body structure of bed frame above.

[0021] The utility model also provides a sofa bed, its characterized in comprising the bed frame above.

[0022] Compared with the prior art, the utility model discloses the shape of the first rod is set to the hole diameter of the plug -in through -hole along the axial direction of the first rod is greater than or less than the hole diameter perpendicular to the axial direction of the first rod, and the cross section of the plug -in end of the second rod is consistent with the plug -in through -hole, so when the second rod is inserted into the plug -in through -hole of the first rod and is fixed along the axial direction by the fixing piece, the plug -in end can not rotate around the circumferential direction of the plug -in through -hole. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the schematic view of the connection of the vertical column and the cross bar of example 1;

[0024] Figure 2 It is the front view of the cross bar of example 1;

[0025] Figure 3 It is the top view of the cross bar of example 1;

[0026] Figure 4 It is the side view of the cross bar of example 1;

[0027] Figure 5 It is the schematic view of the left handrail of example 1;

[0028] Figure 6 It is the right view of the right handrail of example 1;

[0029] Figure 7 It is the enlarged view of the connection of example 1; Figure 1 It is the enlarged view of the connection of example 1;

[0030] Figure 8 It is the schematic view of the connection of the vertical column and the cross bar of example 1;

[0031] Figure 9 It is the enlarged view of the connection of example 1; Figure 8 It is the enlarged view of the connection of example 1; DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model;Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and all other embodiments obtained by the person skilled in the art without creative labor based on the embodiments in the utility model belong to the protection scope of the utility model.

[0033] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external", "top / end" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, construct and operate with a particular orientation, therefore cannot be understood as the limitation of the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the utility model, it needs to explain, unless otherwise explicitly provided and limited, the term "installation", "set with", "sleeve / interfacing", "connection" and so on, should be broad understanding, for example, "connection", can be wall-mounted connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements, for ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0035] The rod body connecting structure of the bed frame provided in the embodiment comprises a first rod and a second rod perpendicular to each other and a fixing piece, the first rod is a stand column 2 on the left and right two armrests 1 of the sofa bed, the second rod is a horizontal rod 4 connected between the left and right two armrests 1, and the fixing piece is a bolt 3.

[0036] The stand column 2 is provided with a plug-in through hole 201 for the plug-in of the horizontal rod 4 relative to the rod surface of the horizontal rod 4, and is provided with a fixing through hole 202 away from the rod surface of the horizontal rod 4; the plug-in through hole 201 is in the shape of a racetrack, and the plug-in through hole 201 in the shape of a racetrack is vertically arranged on the stand column 2, so that the hole diameter of the plug-in through hole 201 along the axial direction of the stand column 2 is greater than the hole diameter perpendicular to the axial direction of the stand column 2. As a simple alternative of the embodiment, the plug-in through hole 201 can also be in the shape of an ellipse, etc., as long as the hole diameter of the plug-in through hole 201 along the axial direction of the stand column 2 is greater than or less than the hole diameter perpendicular to the axial direction of the stand column 2.

[0037] Further, the end of the crossbar 4 is provided with a plug end 401, the cross section of the plug end 401 is consistent with the shape and size of the plug hole 201, also in the shape of a runway. And the length of the plug end 401 along the axial direction of the crossbar 4 is greater than the diameter of the column 2; the plug end 401 is plugged with the plug hole 201; the bolt 3 passes through the fixed hole 202 and is limited by the rod surface where the fixed hole 202 is located; the end surface of the plug end 401 is opened along the axial direction of the crossbar 4 as a connecting groove, and the bolt 3 is screwed into the internal thread groove after passing through the fixed hole 202, thereby fixing the crossbar 4 on the column 2 through the bolt 3.

[0038] In order to transition the cylindrical rod body 403 of the crossbar 4 to the runway-shaped plug end 401, the plug end 401 and the rod body 403 of the crossbar 4 include a transition section 402, the two ends of the transition section 402 are connected with the rod body 403 and the plug end 401 respectively. The connecting surface of the transition section 402 and the plug end 401 is consistent with the cross section of the plug end 401, and the cross section area of the transition section 402 gradually shrinks along the axial direction of the crossbar 4 to be consistent with the rod body 403.

[0039] When the crossbar 4 is too long and there is no support below, the crossbar 4 is easy to be sheared by the shear force generated when the stress is too large. Therefore, in order to increase the support strength of the bed, in the embodiment, the crossbar 4 is divided into a first part 41 and a second part 42, the first part 41 and the second part 42 are connected through a connecting piece 5, the two ends of the connecting piece 5 are U-shaped openings 501, one end of the first part 41 and the second part 42 is embedded in the U-shaped opening 501 respectively, and is fixed with the connecting piece 5. The lower part of the connecting piece 5 is provided with a supporting leg 6 supporting the crossbar 4. By dividing the crossbar 4 into two parts connected by a connecting piece 5, and then setting a supporting leg 6 below the connecting piece 5, the support strength of the crossbar 4 can be improved, and the stress threshold of the crossbar 4 can be increased.

[0040] When installing the bed frame, the user can insert the two ends of the crossbar 4 into the plug holes 201 of the two columns 2, then insert the bolt 3 into the fixed hole 202 and screw it into the internal thread groove of the plug end 401, thereby connecting the crossbar 4 with the column 2. When disassembling the bed frame, the bolt 3 is unscrewed, and then the two ends of the crossbar 4 are pulled out of the two columns 2, the installation and disassembly operation method is simple.

[0041] Since both ends of the crossbar 4 are fixed on the stand 2 in the above manner, the crossbar 4 is limited by the stand 2 along the axial direction. Meanwhile, the plug-in end head 401 is plugged with the plug-in through hole 201, the plug-in end head 401 of the embodiment cannot rotate around the plug-in through hole 201 in the circumferential direction, and the crossbar 4 and the stand 2 can be stably connected together. Even if the user turns over or performs other actions on the bed, no abnormal sound will be generated.

[0042] The above merely describes a preferred embodiment of the present application, but the design concept of the present application is not limited thereto, and any person skilled in the art can make non-essential changes to the present application within the technical range disclosed by the present application, and such changes shall not be deemed to depart from the protection scope of the present application.

Claims

1. A connecting structure of a rod of a bed frame, comprising a first rod and a second rod which are perpendicular to each other, the second rod being connected between the first rods on both sides, characterized in that: The first rod is provided with a plug-in through hole for plugging the second rod on the rod surface of the first rod relative to the second rod, and a fixing through hole is provided on the rod surface away from the second rod, and the area of the fixing through hole is smaller than that of the plug-in through hole; The hole diameter of the plug-in through hole along the axial direction of the first rod is greater than or smaller than the hole diameter perpendicular to the axial direction of the first rod; the end of the second rod is provided with a plug-in end, the cross section of the plug-in end is consistent with the shape and size of the plug-in through hole, and the length of the plug-in end along the axial direction of the second rod is greater than the diameter of the first rod; the plug-in end is plugged into the plug-in through hole; Further comprising a fixing member, the fixing member passes through the fixing through hole and is limited by the rod surface where the fixing through hole is located; the end surface of the plug-in end is provided with a connecting groove along the axial direction of the second rod, and the fixing member penetrates into the connecting groove and is detachably connected with the second rod.

2. The connecting structure of the bedstead according to claim 1, wherein The plug-in through hole is in the shape of a runway or an ellipse.

3. The connecting structure of the bedstead according to claim 2, wherein The hole diameter of the plug-in through hole along the axial direction of the first rod is greater than the hole diameter perpendicular to the axial direction of the first rod.

4. The connecting structure of the bedstead according to claim 1, wherein The plug-in end and the rod body of the second rod are connected through a transition section.

5. The connecting structure of the bedstead according to claim 4, wherein The connecting surface of the transition section and the plug-in end is consistent with the cross section of the plug-in end, and the cross section area of the transition section gradually shrinks along the axial direction of the second rod to be consistent with the rod body.

6. The connecting structure of the bedstead according to claim 1, wherein The fixing member is a bolt, and the connecting groove is an internal thread groove.

7. The connecting structure of the bedstead according to claim 1, wherein The first rod is arranged on the left handrail and the right handrail on both sides.

8. The connecting structure of the bedstead according to claim 7, wherein The first rod is a stand column arranged on the left handrail and the right handrail on both sides.

9. The connecting structure of the bed frame according to claim 8, wherein The second rod is a cross rod connecting the left handrail and the right handrail on both sides.

10. The connecting structure of the bedstead according to claim 1, wherein The second rod is provided with a supporting leg below.

11. The connecting structure of the bedstead according to claim 10, wherein The second rod is divided into a first part and a second part, and the first part and the second part are connected through a connecting member, and the supporting leg is arranged below the connecting member.

12. The connecting structure of the bedstead according to claim 11, wherein The two ends of the connecting member are in the shape of a U-shaped opening, and one end of the first part and the second part is respectively embedded in the U-shaped opening and fixed with the connecting member.

13. A bed frame, characterized by The rod body connecting structure of the bed frame of any one of claims 1-12.

14. A sofa bed, characterized in that The bed frame of claim 13.

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