WO2018018980A1

WO2018018980A1 - Screwless connection structure of combined bedstead

Info

Publication number: WO2018018980A1
Application number: PCT/CN2017/082837
Authority: WO
Inventors: 陈旭升
Original assignee: 陈旭升
Priority date: 2016-07-28
Filing date: 2017-05-03
Publication date: 2018-02-01
Also published as: GB2567345A; CN206295155U; GB2567345B; GB201821153D0

Abstract

Disclosed is a screwless connection structure of a combined bedstead. The bedstead comprises four support posts (1), bed beam columns (21, 31) are connected between two of the support posts (1), either end face of the bed beam columns (21, 31) is provided with at least one positioning sheet (51) protruding outward and extending to one side, the positioning sheet (51) on the outer side of the respective bed beam column (21, 31) on the support post (1) is provided with a positioning opening (11) into which the positioning sheet (51) is embedded after insertion, and the support post (1) is provided with a positioning boss (12), wherein same is ejected upward and abuts against one side of the bed beam column (21, 31) after the insertion of the positioning sheet (51). The positioning sheet (51) protrudes outward to the end face of the bed beam column (21, 31) and extends downward, and the positioning boss (12) is located above or below the bed beam column (21, 31). Either end face of the bed beam column (21, 31) is provided with a connecting sheet (211), the positioning sheet (51) is arranged on the outer side of the connecting sheet (211), the connecting sheet (211) is provided with a positioning hole (212), and the positioning boss (12) passes through and is positioned in the positioning hole (212) when same is ejected upward. With this structure, assembly and connection can be implemented without using any screws, so that the assembly and disassembly are more convenient.

Description

Screwless connection structure of combined bed frame

技术领域Technical field

The utility model relates to a bed frame, and more particularly to a screwless connection structure of a combined bed frame.

背景技术Background technique

The bed frame generally comprises a bed frame body and a bed leg. The bed frame body generally comprises two longitudinal bed beam bars and two horizontal bed beam bars enclosing to form a rectangular bed frame, and the frame frame is arranged in a row of rod members or a row skeleton. Support for the bed or mattress.

Traditionally welded beds no longer need hardware to connect, but the volume is large, the packaging is too large, and the logistics cost is relatively high. When the assembled bed frame is connected, the bed beam bar is generally required to be combined with the bed leg, so that the screw hole screw connection or welding is required, and the assembly is cumbersome.

If you need to form a headboard or a headboard at the end of the bed frame, you can also set the bed end frame or the footboard at the other end, or the surrounding side frame to form a fence, especially for children's beds or double layers. In the bed. In the bed frame above the bunk bed frame, a frame is formed around the bed frame to form a fence, and the upper and lower bed frames are connected to the four columns of the bed frame, and an escalator is also required between the upper and lower beds. For the combined connection of the rod and the frame in the bed frame, it is generally required to open a screw hole at a predetermined joint between each column (or leg) of the bed frame and the side bar or the side frame, and at the same time, a sufficient number of screws are provided for connection.

There are many inconveniences in the connection of the rods in the above bed frame:

(1) It takes time and effort to assemble the connection. Consumers need to refer to the explanatory documents and legends, and connect the screws one by one, and assemble the rods in turn. The screwing work is also cumbersome. If the assembly is wrong, the screws need to be loosened. Unloading and re-spinning, the assembly process is time consuming and very inconvenient;

(2) It is easy to damage the structure during assembly. The screw hole may be drilled and re-drilled during drilling, which may easily damage the component, and the consumer may also install the screw due to uneven force or force applied during screwing. Affect the structural strength;

(3) The structure is scattered and the disassembly is complicated. When it is necessary to carry it, the consumer needs to remove the screws in turn and then disassemble the bed frame as a whole, and the workload of the disassembly process is also large, and the component strength of the bed frame will also be Causing a certain degree of impact;

(4) The effect is beautiful. The manufacturer generally places the screw hole on the outside to facilitate the screwing of the screw. When the bed frame is connected, the screw is turned outward, and many metal screws are seen in the bed frame. , affecting the appearance of the foot of the bed.

实用新型内容Utility model content

The purpose of the utility model is to provide a screwless connection structure of a combined bed frame, which can realize assembly and connection without using screws, and is more convenient to assemble and disassemble, and avoids problems such as time-consuming and labor-saving assembly and scattered structure.

In order to achieve the above object, the solution of the present invention is:

A screwless connection structure of a combined bed frame, the bed frame comprises four sets of support columns, and a bed beam rod is connected between the two support columns, and at least one outer protrusion is respectively arranged on both end faces of the bed beam rod and extends to one side The positioning piece on the supporting column corresponding to the outer side of each beam beam is provided with a positioning opening for inserting the positioning piece into the positioning piece, and the positioning protrusion is provided on the supporting column to bounce off the bed after the positioning piece is inserted. One side of the beam.

Further, the positioning piece protrudes from the end surface of the bed beam and extends downward, and the positioning protrusion is located above or below the beam of the bed beam.

Further, a connecting piece is disposed on each of the two ends of the beam beam, and the positioning piece is disposed on the outer side of the connecting piece, and the positioning piece is provided with a positioning hole, and the positioning convex piece is positioned and positioned in the positioning hole when the spring is bounced.

Further, a limiting nail is further disposed on one side of the positioning convex piece, and the limiting nail and the positioning convex piece are disposed on the same elastic suspension piece, and the corresponding positioning convex piece and the limiting nail on the supporting column are respectively provided with a limiting hole, and the limiting nail can be respectively The rotation is connected to the elastic suspension piece, and the limit pin is located outside the limit hole of the support column after the rotation, and the positioning convex is limited to the bounce state when the limit nail is limited.

Further, the corresponding positioning protrusion on the support column is provided with a limiting hole, and the positioning convex piece is rotatably connected to an elastic suspension piece, and the positioning convex piece is in an unpressible state outside the limiting hole of the supporting column after the rotation.

Further, a guardrail frame is connected between the two support columns, and the guardrail frame is connected above the bed beam or directly connected between the two support columns; the guardrail frame includes two outer lateral bars and two outer longitudinal rods to form a frame, and the outer side is longitudinally The outer side surface of the rod is provided with at least one positioning piece extending outwardly and extending to one side. The positioning piece corresponding to the outer side of each guard rail frame is provided with a positioning opening on the support column, and the outer longitudinal rod is provided with at least one positioning hole for supporting The corresponding positioning holes in the column are provided with positioning protrusions, and the positioning protrusions are popped up in the positioning holes on the outer longitudinal rods when the positioning pieces of the outer longitudinal rods are inserted and positioned.

Further, the positioning piece protrudes outward on the outer side surface of the outer longitudinal rod and extends upward, downward, leftward or rightward.

Further, a plurality of longitudinal rods are arranged between the two bed beams, and the two ends of each longitudinal rod are respectively extruded into a sheet-shaped card head, and the lower side edge of the card head is opened with a card slot, and the bed beam rod is The inner side is evenly opened with a plurality of T-shaped card slots in the longitudinal direction, and the card slots on the respective card heads are engaged in the notches in the middle of the corresponding T-shaped slots.

Further, the bed frame is a bunk bed having an upper bed and a lower bed, and the upper bed and the lower bed are connected by four sets of support columns, and the upper bed and the lower bed are respectively provided with bed beam bars between the two support columns, the upper layer The guardrail frame is arranged in the bed and the lower bed to be connected above the bed beam or between the two support columns, and an escalator frame is arranged between the upper bed and the lower bed, and the escalator frame is connected to the bed beam of the upper bed and the bed beam of the lower bed Between the poles.

Further, the escalator frame comprises a plurality of transverse strut rods as pedals disposed between the two vertical rods, and the ends of the two vertical rods are respectively provided with an outer cross strut connected to the two bed beams of the upper and lower beds, and the outer transverse branch The rod is provided with at least one positioning piece extending outwardly and extending to one side on the side of the rod beam, and the positioning piece on the corresponding lateral cross strut of the bed beam is provided with the positioning piece inserted and inserted. Positioning the opening, at least one positioning hole is arranged on the connecting surface of the bed beam and the escalator frame, and positioning convex particles are arranged in the outer horizontal supporting rod, and the positioning piece on the outer horizontal supporting rod is positioned on the bed beam rod When opening, the positioning convex spring is positioned in the positioning hole on the outer transverse strut.

After adopting the above structure, when the bed frame of the present invention is assembled and connected, the bed beam rod in the bed frame is connected to the support column, the connection of the guardrail frame, and the connection of the escalator frame, and only the positioning piece disposed thereon is inserted into the corresponding In the positioning opening provided, the positioning of the positioning convex granules is further provided, and the combined connection can be completed. The assembly process does not use screws, and the assembly and disassembly are more convenient, and the problems of time-consuming and labor-saving assembly and scattered structure are avoided.

附图说明DRAWINGS

Figure 1 is a schematic view of the overall structure of the utility model (using a bunk bed as an embodiment);

Figure 2 is a schematic view of one of the side brackets of the bed frame of Figure 1;

2A is a partial enlarged view of a portion of FIG. 2, and shows a schematic view of the assembly operation of the guardrail frame at both ends of the bed frame;

Figure 3 is a schematic view of the two side brackets of the bed frame of Figure 1 combined with the upper bed beam;

Figure 3A is a partial enlarged view of the portion B of Figure 3, and shows a schematic view of the first embodiment of the bed beam assembly operation;

Figure 3B is a partial enlarged view of the portion B of Figure 3, and shows a schematic view of the second embodiment of the bed beam assembly operation;

3C is a schematic view showing the state in which the positioning protrusions and the limiting nails are restrained in the support column of FIG. 3B;

3D is a schematic structural view of a positioning protrusion and a fiber nail in the support column of FIG. 3B;

Figure 4 is a schematic view showing the combination of the rear guardrail frame in the upper bed frame of the bed frame of Figure 1;

4A is a partial enlarged view of a portion C in FIG. 4, showing a schematic view of the assembly action of the rear guardrail frame;

Figure 5 is a schematic view showing the front guard rail frame and the bed beam installation in the upper bed frame of the bed frame of Figure 1;

5A and FIG. 5B are partial enlarged views of a portion D and E of FIG. 5 respectively, showing a schematic diagram of an action of connecting the front guard rail frame and the two ends of the bed beam rod;

5C, 5D, and 5E are schematic views of different embodiments of the positioning piece of FIG. 5A;

Figure 6 is a schematic view showing the combined connection of the escalator frame in the bed frame of Figure 1;

Figure 6A is a partial enlarged view of the portion F of Figure 6, and shows a schematic view of the action of the escalator frame connected to the beam bed of the lower bed;

Figure 7 is a schematic view of the combination of the longitudinal bars of the bed frame of the bed frame;

Fig. 7A is a partial enlarged view of the portion G in Fig. 7, showing a connection diagram of the longitudinal rod.

具体实施方式detailed description

In order to further explain the technical solutions of the present invention, the present invention will be described in detail below through specific embodiments.

As shown in FIG. 1 , the screwless connection structure of the combined bed frame of the present invention is applied to the bed frame of the combined combination, and the bunk bed with the upper bed is now taken as an example, and the structure is also applicable to the single shop. In the bed frame. As shown in the figure, the double-layer combined bed frame includes an upper bed and a lower bed, and the upper bed and the lower bed are connected by four sets of support columns, and the lower bed frame 2 of the lower bed and the upper bed frame 3 of the upper bed are respectively connected Support column 1.

The lower bed frame 2 includes two parallel bed beam rods 21 respectively connected between the two support columns 1 located on the front and rear façades, and a plurality of longitudinal rods 22 are arranged between the two bed beam rods 21 to form a longitudinal support. Supporting the upper bed or mattress, the combination of the bed beam and the longitudinal bar forms a bed frame. Between the two support columns 1 on each side, the bed beam 21 can be arranged, or a guard rail 23 can be directly connected between the two support columns to form a bed head or a bed guard rail. In the upper bed, two bed beams 31 are also connected between the two support columns 1 of the front and rear facades, and the bed beam 31 is located above the bed beam 21, and the two bed beams 31 are also arranged. The root rod 32 is disposed between the two support columns 1 of the two sides, and a guard rail frame 33 is respectively connected to the upper position of the bed beam rod 31 to form a bed head or a bed guard rail. In the upper bed frame, a guardrail frame must also be provided on the front and rear surfaces of the bed frame. On the rear façade of the bed frame, above the bed beam 31, a guardrail frame 34 is connected between the two support columns 1 to form the rear side of the upper bed. The guardrail, and in the front side of the upper bed, is also connected with a guardrail frame 35. The length of the guardrail frame 35 is smaller than the distance between the two support columns 1, and an opening is formed on one side thereof for the user to enter the upper bed. An escalator frame is also required between the upper and lower bed frames for supporting the upper bed. In the front façade of the bed frame, a ladder frame 4 can be hung on the left side or the right side, and the escalator frame 4 is connected to the bed beam bar. Between 31 and the bed beam 21, correspondingly, the guardrail frame 35 in front of the upper bed extends from one of the support columns 1 above the escalator frame 4, leaving a distance on the bed beam 31.

In the utility model, in order to realize the assembly of the bed frame without using screws, the bed frame rods 21 in the lower bed frame 2 in the bed frame and the upper bed frame 3 in the upper bed frame of the upper bed can be passed in combination with FIG. 1 to FIG. The connection method in which the two end portions are directly inserted and embedded in the column 1 does not need to be fixed by screws. For each guardrail, it is only necessary to insert the two sides of the guardrail frame into the column 1 by inserting them, and the escalator frame 4 does not need to be locked by screws, and only the upper and lower sides of the escalator frame need to be inserted and embedded respectively. It can be connected to the upper and lower bed beam rods 31, 21, thereby realizing the assembly of the bed frame. As shown in FIG. 1 , FIG. 2 , FIG. 4 , FIG. 5 , and FIG. 6 , each of the guard rail frames 23 , 33 , 34 , and 35 in the bed frame includes two sets of outer lateral bars and outer longitudinal bars. a frame structure, two sets of outer lateral rods may be arranged in parallel with a plurality of sets of central middle transverse rods connected between the two outer longitudinal rods, and at least one middle longitudinal rod between the two sets of outer longitudinal rods It is connected between the two outer lateral rods and connects the middle cross rods to make the frame more solid. As shown in FIG. 2 , the guard rail frame 33 as a bed head or a bed guard rail in the two side surfaces of the upper layer bed is exemplified. The guard rail frame 33 includes two outer lateral rods 331 and two outer longitudinal rods 332 enclosing a frame, and two A plurality of parallel central transverse rods 334 are disposed between the outer lateral rods 331, and a central longitudinal rod 334 is parallel to the outer longitudinal longitudinal rods 332 in the middle of the guard rail frame, and the central longitudinal rods 334 are connected to the parallel outer lateral rods. 331 and the middle cross bar 333.

For the connection combination of the bed frame, first, as shown in FIG. 3 and FIG. 3A, when the bed beam 21 of the bed frame is to be connected to the support column 1, as shown in the figure, at least two ends of the bed beam 21 are respectively provided. a positioning piece 51 extending outwardly and extending to one side, in the embodiment, two pieces are provided at the end of the beam beam, and each positioning piece 51 protrudes outwardly from the end surface of the bed beam 21 and extends downward, corresponding to The positioning piece 51 corresponding to the outer side of each of the beam bars on the support column 1 is provided with a positioning opening 11 for the positioning piece 51 to be inserted and embedded therein, so that the bed beam 21 can be connected to the support column 1. In order to prevent the positioning piece 51 embedded in the positioning opening 11 from being moved upwards and downwards, the positioning piece 51 is further disposed above the positioning opening 11 and is disposed above the bed beam rod. After the positioning piece 51 is positioned, the protrusion is raised. The positioning projections 12 allow the bed beam 21 to be dislocated without being moved upward after being attached to the support column 1, as shown in Fig. 3A. The positioning lobes 12 may also be disposed below or at the side of the bed beam 21, which bounces off the side of the bed beam after the positioning piece is inserted.

As shown in FIG. 3B, a connecting piece 211 is disposed on each of the two ends of the beam of the beam, and the positioning piece 51 is disposed outside the connecting piece 211. The connecting piece 211 is provided with a positioning hole 212. When the positioning protrusion 12 is bounced, The bed beam 21 is blocked and positioned by passing through a positioning hole 212 positioned on the connecting piece.

Further, in order to prevent misoperation of the positioning protrusions 12, such as a child's misoperation, the positioning protrusions 12 are pressed, and one side of the positioning protrusions 12 is provided with a limiting nail. In this embodiment, the support column 1 is a cylindrical tube, and the limiting nail 13 is disposed above or below the positioning convex. For example, the supporting column is a square tube, and the positioning nail can be disposed on the left or right side of the positioning convex. As shown in FIG. 3B, FIG. 3C, and FIG. 3D, the limiting pin 13 and the positioning protrusion 12 are disposed on the same elastic suspension piece 14, and the elastic suspension piece is located in the support column 1, and the corresponding positioning protrusion 12 on the support column 1 is limited. The position pins 13 are respectively provided with the limiting holes 121 and 131. The limiting nails 13 are rotatably connected to the elastic suspension piece 14. The head of the limiting nail 13 is elliptical, and the limiting hole 131 is an elliptical hole. The limiting pin 13 is located outside the limiting hole 131 of the supporting column after the rotation, and the positioning convex 13 located on the same elastic suspension piece is restrained from being in the state of being bounced when the limiting nail 13 is restrained, so that it can be prevented. The positioning projection 12 is pressed due to an erroneous operation. Of course, the positioning lobes on the support column can also be directly set in the form of a limit pin. The corresponding positioning lobes on the support column are provided with elliptical limiting holes, and the head of the positioning bulge is set to an elliptical shape. The lobes are rotatably connected to an elastic suspension piece, and the positioning bulge is in an unpressible state outside the limiting hole of the support post after the rotation, thereby preventing the positioning embossing from being erroneously pressed.

Similarly, as shown in FIG. 2A, FIG. 4A and FIG. 5A, when each guardrail frame is to be connected to the support column 1, as shown in FIG. 5A, the guardrail frame 35 in the front side of the upper bed, the outer side of the guardrail frame 35 The outer side surface of the longitudinal rod 352 is provided with at least one positioning piece 51 which protrudes outwardly and extends to one side. The outer side surface of the positioning piece which protrudes outwardly from the outer longitudinal rod 352 can extend upward, downward, leftward or rightward, such as 5C, 5D, and 5E. In this embodiment, two positioning pieces 51 are disposed at the end of the beam of the bed beam, and the positioning piece 51 extends downward. Correspondingly, the positioning piece 51 corresponding to the outer side of each guard frame of the support column 1 is provided with a positioning opening 11 for The positioning piece 51 is inserted and embedded therein so that the guard rail frame 35 can be attached to the support post 1. In order to prevent the positioning piece 51 embedded in the positioning opening 11 from being detached, the guardrail frame is moved. At least one positioning hole 61 is disposed on the outer longitudinal rod in the guard rail frame, and the corresponding positioning hole 61 is provided with positioning convexity in the support column. 12, the positioning convex can also be set in the form of a limiting nail, the positioning convex piece can be rotatably disposed on an elastic suspension piece, the positioning convex head is elliptical, and the positioning hole 61 is set as an elliptical hole, and The erroneous operation is prevented from pressing the positioning projection 12. When the positioning piece 51 in the outer longitudinal rod of the guard rail frame is positioned in the positioning opening 11 in the corresponding supporting column, the positioning hole in the outer longitudinal rod is located just outside the positioning convex piece to position the positioning convex 12 after the spring is raised, and is convex. The positioning projections 12 allow the guard rail frame to be dislocated without being moved upward after being connected to the support column 1. This type of connection can be used for each guardrail frame, and will not be described in detail one by one.

For the connection of the escalator frame 4, the above-mentioned connection manner is also adopted. As shown in FIG. 6 and FIG. 6A, the escalator frame 4 is also a frame, and includes a plurality of transverse strut rods as pedals between the two vertical rods 41. 42. An outer transverse strut 43 connectable to the bed beam 21, 31 in the bed frame is respectively arranged at the upper and lower ends of the escalator frame, the outer cross strut 43 is located at the end of the two vertical bars 41, and the outer transverse strut 43 is at The side surface of the bed frame beam is provided with at least one positioning piece 51 extending outwardly and extending on one side. In this embodiment, two positioning pieces 51 respectively extending downward are provided, correspondingly, in the bed beam The positioning piece 51 on the side opposite to the connecting rod 21, 31 corresponding to the outer cross strut 43 is provided with a positioning opening 11 for the positioning piece 51 to pass through and be inserted therein, so that the escalator frame 4 can be connected to the supporting column. 1 is shown in Figure 6A. In order to prevent the positioning piece 51 passing through the insertion positioning opening 11 from moving backward and then coming out, the escalator frame 4 is moved, the upper plane connecting the bed beam 21 and the escalator frame, and the lower plane connecting the bed beam rod 31 and the escalator frame. Locating holes 61 are respectively disposed in the outer lateral struts 43 , and corresponding positioning holes 61 are provided with positioning lobes 12 . Similarly, the positioning lobes can also be set in the form of erroneously operated limiting pins. I don't want to elaborate here. When the positioning piece 51 in the upper part and the lower part of the escalator frame 4 is positioned on the positioning opening 11 on the corresponding bed beam, the positioning hole on the bed beam bar in the bed frame is located just outside the positioning convex piece to position the positioning convex piece 12 after being bounced. The raised positioning projections 12 allow the escalator frame to disengage between the upper and lower bed beams connected to the upper and lower bed frames without causing left and right movement.

When the bed frame of the present invention needs to be combined, as shown in FIG. 2 to FIG. 7, the guardrail frame 23, 33 as the bed head and the bed guard rail can be first combined between the two support columns 1 to form the side of the bed frame. The positioning piece 51 on the outer side of the guard rail frame can be positioned into the corresponding positioning opening in the support column, and the positioning convex protrusion 12 is further positioned after being raised. The bed beam 21, 31 in the bed frame is then connected between the two support columns 1, respectively. Then, one side of each guardrail frame of the upper bed is placed on the support column 1, and the escalator frame 4 is also connected to the upper and lower bed frames, and the escalator frame 4 is connected between the bed beam rods 31, 21. Finally, the longitudinal rods 22, 32 in the bed frame are connected to complete. As shown in FIG. 7 and FIG. 7A, the longitudinal rod 32 in the above layer bed is taken as an example, and both ends of each longitudinal rod can be respectively extruded into a sheet-shaped card head 321 and on the lower side of the card head 321 . The card slot 322 is opened at the edge, and a plurality of T-shaped slots 311 are evenly opened in the longitudinal direction of the bed beam 31, and the card slot 322 of each card head 321 is snapped into the middle of the corresponding T-shaped slot 311. In the notch, the longitudinal rods 32 are arranged in the bed beam and are not easily rotated or moved to realize the assembly of the longitudinal rods in the bed frame. On the contrary, when the bed frame of the present invention is disassembled, it is only necessary to remove the guard rails from the support column 1 , press the positioning bumps, release the positioning, and then pull out the positioning piece positioned in the positioning opening. That is, the dismantling of the armrest frame 4 is also in the same manner, and then the bed frame is split, the longitudinal rods are taken out, and the bed beam rods 21, 31 are separated, which can be completed, and the disassembly process does not need to loosen the screws, and the operation is simple and quick. .

The screwless connection structure of the combined bed frame of the utility model, when the bed frame is assembled and connected, the bed beam rod in the bed frame is connected to the support column, the connection of the guardrail frame, and the connection of the escalator frame, only need to be positioned thereon The chip is inserted into the corresponding positioning opening, and the positioning of the positioning convex is further completed, and the combined connection can be completed. The assembly process does not use screws, and the assembly and disassembly are more convenient, and the assembly is time-consuming and labor-intensive and structurally scattered. .

The above-mentioned embodiments and the drawings are not intended to limit the scope of the present invention, and any suitable changes or modifications made by those skilled in the art should be considered as not departing from the scope of the invention.

Claims

A screwless connection structure of a combined bed frame, the bed frame comprises four sets of support columns, and the bed beam rods are connected between the two support columns, wherein at least one outer protrusion is respectively arranged on both end faces of the bed beam rod a positioning piece extending to one side, a positioning piece corresponding to the outer side of each of the beam bars of the supporting column is provided with a positioning opening into which the positioning piece is inserted, and a positioning convex piece is arranged on the supporting column to bounce after the positioning piece is inserted. Blocked on the side of the bed beam.
The screwless connection structure of a modular bed frame according to claim 1, wherein the positioning piece protrudes from the end surface of the bed beam and extends downward, and the positioning convex is located above or below the beam of the bed.
The screwless connection structure of a combined bed frame according to claim 1, wherein a connecting piece is respectively disposed on both end faces of the beam beam, and the positioning piece is disposed outside the connecting piece, and a positioning hole is arranged on the connecting piece. When the positioning bump is lifted up, it is positioned in the positioning hole.
The screwless connection structure of a modular bed frame according to claim 1, wherein one side of the positioning convex piece is further provided with a limiting nail, and the limiting nail and the positioning convex piece are disposed on the same elastic suspension piece. The corresponding positioning protrusions and the limiting nails on the support column are respectively provided with limiting holes, and the limiting nails are rotatably connected to the elastic suspension piece, and the limiting nail is located outside the limiting hole of the supporting column after the rotation, and the positioning convex is at the limit position. When the nail is limited, the limit is in the state of being bouncing.
The screwless connection structure of a combined bed frame according to claim 1, wherein the corresponding positioning protrusion on the support column is provided with a limiting hole, and the positioning convex piece is rotatably connected to an elastic suspension piece to position the convex piece. After the rotation, the limit is located outside the limiting hole of the support column and cannot be pressed.
The screwless connection structure of a combined bed frame according to claim 1, wherein a guard rail frame is connected between the two support columns, and the guard rail frame is connected above the bed beam or directly connected between the two support columns. The guardrail frame comprises two outer lateral rods and two outer longitudinal rods enclosing a frame, and the outer side surface of the outer longitudinal rod is provided with at least one positioning piece extending outwardly and extending to one side, corresponding to the outer side of each guard rail frame on the support column The positioning piece is provided with a positioning opening, and the outer longitudinal rod is provided with at least one positioning hole, and the corresponding positioning hole in the supporting column is provided with positioning convex particles, and the positioning convex piece is popped up and positioned when the positioning piece of the outer longitudinal rod is inserted and positioned. In the positioning hole on the outer longitudinal rod.
A screwless connection structure for a modular bed frame according to claim 6, wherein the positioning piece protrudes outwardly from the outer side surface of the outer longitudinal rod and extends upward, downward, leftward or rightward.
The screwless connection structure of a combined bed frame according to claim 1, wherein a plurality of longitudinal rods are arranged between the two bed beams, and the two ends of each longitudinal rod are respectively extruded into a sheet shape. The card head has a card slot on the lower edge of the card head, and a plurality of T-shaped card slots are evenly opened in the longitudinal direction on the inner side of the beam beam, and the card slots on the card heads are inserted into the corresponding T-shapes. In the gap between the slots.
The screwless connection structure of a combined bed frame according to claim 1, wherein the bed frame is a bunk bed having an upper bed and a lower bed, and the upper bed and the lower bed are connected by four sets of support columns. The bed beam and the lower bed are respectively arranged between the two support columns, and the guardrail frame is arranged in the upper bed and the lower bed to be connected above the bed beam or between the two support columns, between the upper bed and the lower bed An escalator frame is arranged, and the escalator frame is connected between the bed beam of the upper bed and the bed beam of the lower bed.
A screwless connection structure for a modular bed frame according to claim 9, wherein the escalator frame comprises a plurality of transverse strut members as pedals disposed between the two vertical bars, and the ends of the two vertical bars are respectively provided There is an outer transverse strut connected to the two-bed beam of the upper and lower beds, and the outer transverse strut is provided with at least one protruding piece extending outwardly on one side of the side of the bed beam, in the bed beam The positioning piece on the outer lateral strut of the rod is provided with a positioning opening for inserting and inserting the positioning piece, and at least one positioning hole is arranged on the connecting surface of the bed beam and the escalator frame, and the positioning hole is arranged in the outer cross strut Positioning the lobes, when the positioning piece on the outer cross struts is positioned on the positioning opening on the bed beam rod, the positioning convex bulge is positioned in the positioning hole on the outer transverse struts.