Foldable guardrail

Abstract

The utility model discloses a foldable guardrail which comprises a fence, the fence comprises at least two stand columns arranged side by side, the lower ends of the stand columns are connected with supporting legs, and connecting structures capable of enabling the stand columns to be rotatably connected to the supporting legs are arranged between the stand columns and the supporting legs. The connecting structure comprises a pivoting seat fixedly connected with the supporting leg and a rotating seat fixedly connected with the stand column, the pivoting seat is provided with a pivot, the rotating seat is pivoted to the pivot, a spline is arranged between the pivoting seat and the rotating seat, the rotating seat is provided with a first clamping groove, and the spline can be inserted into the first clamping groove to limit rotation of the rotating seat. The outer side of the rotating seat is slidably connected with a pushing piece capable of pushing the spline out of the first clamping groove during movement, a reset spring capable of enabling the spline disengaged from the first clamping groove to be inserted into the first clamping groove is arranged between the pivot joint seat and the spline, the spline is pushed away from the first clamping groove by pressing the pushing piece, and then the fence can rotate smoothly. The use flexibility is improved, and storage and transportation are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrail structures, in particular to a foldable guardrail. Background Art

[0002] Guardrails are facilities used to divide space, restrict access or protect safety, usually made of metal, plastic, wood and other materials. They are widely used in various places and scenes, including roads, construction sites, public places, stadiums, and bed accessories.

[0003] In the prior art, guardrails are generally made of multiple rods welded or connected by threaded fasteners, and they generally cannot be folded. For example, a patent document with patent application number CN202310080625.2 and patent name "A PVC profile guardrail" discloses a guardrail that cannot be folded, so that the angle of the guardrail column cannot be adjusted according to different usage scenarios, and it needs to be completely disassembled to save space when stored or transported, and has poor flexibility.

[0004] The utility model is made based on the above situation. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a foldable guardrail which can be folded as required.

[0006] The utility model is realized by the following technical solutions:

[0007] A foldable guardrail comprises a fence, wherein the fence comprises at least two upright posts arranged side by side, the lower ends of the upright posts are connected to supporting feet, a connecting structure is provided between the upright posts and the supporting feet, which enables the upright posts to be rotatably connected to the supporting feet, the connecting structure comprises a pivot seat fixedly connected to the supporting feet and a rotating seat fixedly connected to the upright posts, the pivot seat is provided with a pivot, the rotating seat is pivotally connected to the pivot, a spline is provided between the pivot seat and the rotating seat, the rotating seat is provided with a first slot for inserting the spline and thus limiting the rotation of the rotating seat, the outer side of the rotating seat is slidably connected to a pushing member which can push the spline out of the first slot when moving, and a return spring is provided between the pivot seat and the spline which can insert the spline out of the first slot into the first slot.

[0008] In the foldable guardrail as described above, the push member includes an end cap and a push rod connected to the end cap, the rotating seat is provided with a through hole for the push rod to pass through, and the end of the push rod is provided with a buckle for limiting the push rod from detaching from the rotating seat.

[0009] In the foldable guardrail as described above, a first receiving groove capable of receiving an end cap is provided on the outer end surface of the rotating seat.

[0010] In the foldable guardrail as described above, a second slot that can accommodate and limit the rotation of the spline is provided at a position on the pivot seat corresponding to the first slot.

[0011] In the foldable guardrail as described above, the supporting foot is provided with a connecting column, the pivot seat is provided with a first sleeve for inserting the connecting column, and the rotating seat is provided with a second sleeve for inserting the column.

[0012] In the foldable guardrail as described above, the spline is provided with a mounting groove for mounting a return spring.

[0013] The foldable guardrail as described above further comprises an upper cross arm connected to the upper part of the upright post and a lower cross arm connected to the lower part of the upright post.

[0014] A foldable guardrail as described above, the upper crossbar includes a first crossbar and a second crossbar, the head end of the first crossbar is connected to a first connecting tube that can be socketed with a column, the head end of the second crossbar is connected to a second connecting tube that can be socketed with another column, and the tail end of the first crossbar is socketed with the tail end of the second crossbar.

[0015] A foldable guardrail as described above, wherein the two ends of the lower cross arm are connected to opposite sides of two adjacent pivot seats, the pivot seat is provided with a connecting rod, the connecting rod is provided with a connecting sleeve, the lower cross arm includes a third cross bar and a fourth cross bar, the head end of the third cross bar is inserted into the connecting sleeve of one pivot seat, the head end of the fourth cross bar is inserted into the connecting sleeve of another pivot seat, and the tail end of the third cross bar is sleeved with the tail end of the fourth cross bar.

[0016] In the foldable guardrail as described above, the support foot and the connecting column are integrated into an L-shape, the first cross bar and the first connecting tube are integrated into an L-shape, and the second cross bar and the second connecting tube are integrated into an L-shape.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. In this case, the pusher is pressed to push the spline away from the first slot, so that the fence can rotate smoothly. The up and down folding design allows the guardrail to be unfolded or folded as needed, which increases the flexibility of use. At the same time, the folded guardrail can reduce the occupied space and facilitate storage and transportation.

[0019] 2. A first sleeve for inserting the connecting column is provided on the pivot seat, and a second sleeve for inserting the column is provided on the rotating seat. The connecting structure between the column and the supporting foot is made independently. After the guardrail has been used for a long time, if the connecting structure is damaged, it can be replaced alone without replacing the entire guardrail, thereby reducing the maintenance cost.

[0020] 3. Most of the parts of the products in this case are plugged into each other for splicing, which makes installation easy and quick. They can be disassembled relatively loosely when not assembled. Each part occupies a small space, which is convenient for packaging and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is an exploded schematic diagram of the utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure in the utility model. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the connection structure in the utility model. Figure 2 ;

[0026] Figure 5 It is a cross-sectional view of the connection structure in the utility model. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] like Figures 1 to 5 A foldable guardrail shown in the figure includes a fence 1, which includes at least two columns 11 arranged side by side, and the lower end of the column 11 is connected to a supporting foot 2, and a connecting structure is provided between the column 11 and the supporting foot 2, which enables the column 11 to be rotatably connected to the supporting foot 2, and the connecting structure includes a pivot seat 3 fixedly connected to the supporting foot 2 and a rotating seat 4 fixedly connected to the column 11, the pivot seat 3 is provided with a pivot 5, and the rotating seat 4 is pivotally connected to the pivot 5, and a spline 6 is provided between the pivot seat 3 and the rotating seat 4, and a first slot 41 is provided on the rotating seat 4 for inserting the spline 6 to limit the rotation of the rotating seat 4, and a pushing member is slidably connected to the outer side of the rotating seat 4, which can push the spline 6 out of the first slot 41 when moving, and a return spring 7 is provided between the pivot seat 3 and the spline 6, which can insert the spline 6 that has been separated from the first slot 41 into the first slot 41.

[0029] In this case, the pusher is pressed to push the spline 6 away from the first slot 41, so that the fence 1 can rotate smoothly around the pivot 5. The up and down folding design allows the guardrail to be unfolded or folded as needed, which increases the flexibility of use. At the same time, the folded guardrail can reduce the occupied space and facilitate storage and transportation.

[0030] The push member includes an end cap 81 and a push rod 82 connected to the end cap 81. The rotating seat 4 is provided with a through hole 42 for the push rod 82 to pass through. The end of the push rod 82 is provided with a buckle 83 for limiting the push rod 82 from being separated from the rotating seat 4. The end cap 81, the push rod 82 and the buckle 83 are integrally injection molded. Of course, the end cap 81, the push rod 82 and the buckle 83 can also be connected by other means such as threaded fasteners or hot melt connection.

[0031] In one embodiment, the rotating seat 4 is provided with a mounting hole for the pivot 5 to pass through, and the number of the through holes 42 is four, which are evenly distributed and surround the mounting hole. The number of the push rods 82 is four, which pass through the four through holes 42 respectively, so that the movement of the pusher is more stable.

[0032] A second slot 31 that can accommodate and limit the rotation of the spline 6 is provided at a position corresponding to the first slot 41 on the pivot seat 3. The shape of the spline 6 can fit with the first slot 41 and the second slot 31. In the initial state, a part of the spline 6 extends into the first slot 41, and the other part extends into the second slot 31, so that the rotating seat 4 cannot rotate. When the pusher is pressed, the push rod 82 pushes the spline 6 out of the first slot 41, thereby completing the unlocking. The spline 6 is provided with a mounting groove 61 for mounting a reset spring 7, one end of the reset spring 7 presses on the spline 6, and the other end presses on the pivot seat 3.

[0033] In one embodiment, the rotating seat 4 is connected to the pivot seat 3 by bolts, and the screw of the bolt can be used as the pivot 5. This connection method is easy to disassemble and install, which provides convenience for maintenance and replacement. It not only saves costs and reduces the number of parts, but also makes the overall structure more compact and simple. When the rotating seat 4 needs to rotate, the screw serves as the pivot 5, which can smoothly support and guide it to rotate. This rotational movement is not only smooth but also precise, which can meet the use requirements.

[0034] In one embodiment, the outer end surface of the rotating seat 4 is provided with a first receiving groove 43 capable of receiving the end cap 81, and the first receiving groove 43 can receive the end cap 81, so that it is integrated with the overall design of the rotating seat 4. This design not only provides a good shielding effect for the push rod 82, but also ensures that when pressing the end cap 81, people's fingers are not likely to mistakenly enter the narrow space between the rotating seat 4 and the end cap 81, thereby effectively avoiding the risk of fingers being pinched by the end cap 81.

[0035] In addition, this design also adds beauty to the appearance. Since the end cap 81 is cleverly accommodated in the first accommodation groove 43, the overall appearance of the rotating base 4 is more neat and uniform, which not only improves the texture of the product, but also enhances the user experience.

[0036] In one embodiment, the support leg 2 is provided with a connecting column 21, the pivot seat 3 is provided with a first sleeve 32 for inserting the connecting column 21, and the rotating seat 4 is provided with a second sleeve 44 for inserting the column 11. The support leg 2 and the connecting column 21 are integrally formed, the pivot seat 3 and the first sleeve 32 are integrally formed, and the rotating seat 4 and the second sleeve 44 are integrally formed. The connecting structure between the column 11 and the support leg 2 is independently manufactured. After the guardrail has been used for a long time, when the connecting structure is damaged, it can be replaced alone without replacing the entire guardrail, thereby reducing the maintenance cost.

[0037] In one embodiment, a first threaded hole is designed on the first sleeve 32. The threaded hole can be tightly threaded with a bolt. When the bolt is screwed into the threaded hole, its end will be tightly pressed against the connecting column 21. Such a design effectively ensures that the connecting column 21 will not accidentally fall out of the first sleeve 32, greatly enhancing the stability and safety of the structure.

[0038] Similarly, a second threaded hole is also provided on the second sleeve 44. This threaded hole has a similar function to the first threaded hole and is also used for threaded connection of a bolt. When the bolt is tightly engaged with this threaded hole, its end will firmly press against the column 11. In this way, the column 11 is effectively confined in the second sleeve 44, avoiding the risk of it coming out of the second sleeve 44, and further enhancing the stability of the overall structure.

[0039] Such a design not only ensures a firm connection between the connecting column 21 and the upright column 11 and their respective sleeves, but also improves the stability and reliability of the entire structure, so that it can maintain stable performance in various environments.

[0040] In one embodiment, the fence 1 further comprises an upper cross arm connected to the upper part of the column 11 and a lower cross arm connected to the lower part of the column 11. The upper cross arm comprises a first cross bar 91 and a second cross bar 92, the first cross bar 91 has a first connecting tube 911 connected to the head end thereof which can be sleeved with the column 11, the second cross bar 92 has a second connecting tube 921 connected to the head end thereof which can be sleeved with another column 11, and the tail end of the first cross bar 91 is sleeved with the tail end of the second cross bar 92. The first connecting tube 911 and the second connecting tube 921 are both provided with a third threaded hole, and the column 11 is pressed by a threaded connection bolt, thereby preventing the first cross bar 91 and the second cross bar 92 from coming off the column 11.

[0041] In one embodiment, the two ends of the lower cross arm are connected to opposite sides of two adjacent pivot seats 3, the pivot seat 3 is provided with a connecting rod 33, the connecting rod 33 is provided with a connecting sleeve 34, the lower cross arm includes a third cross bar 93 and a fourth cross bar 94, the head end of the third cross bar 93 is inserted into the connecting sleeve 34 of one pivot seat 3, the head end of the fourth cross bar 94 is inserted into the connecting sleeve 34 of another pivot seat 3, and the tail end of the third cross bar 93 is sleeved with the tail end of the fourth cross bar 94.

[0042] Specifically, a fourth threaded hole is provided on the connecting sleeve 34 , and the connecting rod 33 is pressed by the threaded connecting bolt, thereby preventing the connecting sleeve 34 from coming off the connecting rod 33 .

[0043] The support foot 2 and the connecting column 21 are integrated into an L-shape with rounded corners, the first crossbar 91 and the first connecting tube 911 are integrated into an L-shape with rounded corners, and the second crossbar 92 and the second connecting tube 921 are integrated into an L-shape with rounded corners. The rounded corner design makes the overall structure more rounded, avoids the potential safety hazards caused by sharp corners, and also enhances the firmness and durability of the overall structure.

Claims

1. A foldable guardrail, characterized in that: The invention comprises a fence (1), wherein the fence (1) comprises at least two columns (11) arranged side by side, wherein the lower end of the column (11) is connected to a supporting foot (2), and a connecting structure is provided between the column (11) and the supporting foot (2) so that the column (11) can be rotatably connected to the supporting foot (2), and the connecting structure comprises a pivot seat (3) fixedly connected to the supporting foot (2) and a rotating seat (4) fixedly connected to the column (11), wherein the pivot seat (3) is provided with a pivot shaft (5), and the rotating seat (4) is provided with a pivot shaft (5). Pivoted on a pivot shaft (5), a spline (6) is provided between the pivot seat (3) and the rotating seat (4), a first slot (41) is provided on the rotating seat (4) for inserting the spline (6) so as to limit the rotation of the rotating seat (4), a pusher is slidably connected to the outer side of the rotating seat (4) and can push the spline (6) out of the first slot (41) when moving, and a return spring (7) is provided between the pivot seat (3) and the spline (6) and can insert the spline (6) out of the first slot (41) into the first slot (41).

2. A foldable guardrail according to claim 1, characterized in that: The pushing member comprises an end cap (81) and a push rod (82) connected to the end cap (81); the rotating seat (4) is provided with a through hole (42) for the push rod (82) to pass through; and the end of the push rod (82) is provided with a buckle (83) for limiting the push rod (82) from detaching from the rotating seat (4).

3. A foldable guardrail according to claim 2, characterized in that: A first accommodating groove (43) capable of accommodating an end cap (81) is provided on the outer end surface of the rotating seat (4).

4. A foldable guardrail according to claim 3, characterized in that: A second slot (31) capable of accommodating and limiting the rotation of the spline (6) is provided at a position on the pivot seat (3) corresponding to the first slot (41).

5. A foldable guardrail according to any one of claims 1 to 4, characterized in that: The supporting foot (2) is provided with a connecting column (21), the pivot seat (3) is provided with a first sleeve (32) for inserting the connecting column (21), and the rotating seat (4) is provided with a second sleeve (44) for inserting the column (11).

6. A foldable guardrail according to claim 5, characterized in that: The spline (6) is provided with a mounting groove (61) for mounting a return spring (7).

7. The foldable guardrail according to claim 5, characterized in that: The fence (1) further comprises an upper cross arm connected to the upper part of the upright post (11) and a lower cross arm connected to the lower part of the upright post (11).

8. A foldable guardrail according to claim 7, characterized in that: The upper crossbar comprises a first crossbar (91) and a second crossbar (92); the head end of the first crossbar (91) is connected to a first connecting tube (911) that can be sleeved with a column (11); the head end of the second crossbar (92) is connected to a second connecting tube (921) that can be sleeved with another column (11); and the tail end of the first crossbar (91) is sleeved with the tail end of the second crossbar (92).

9. The foldable guardrail according to claim 7, characterized in that: The two ends of the lower cross arm are connected to the opposite sides of two adjacent pivot seats (3); the pivot seat (3) is provided with a connecting rod (33); the connecting rod (33) is provided with a connecting sleeve (34); the lower cross arm comprises a third cross bar (93) and a fourth cross bar (94); the head end of the third cross bar (93) is plugged into the connecting sleeve (34) of one pivot seat (3); the head end of the fourth cross bar (94) is plugged into the connecting sleeve (34) of another pivot seat (3); the tail end of the third cross bar (93) is sleeved with the tail end of the fourth cross bar (94).

10. The foldable guardrail according to claim 8, characterized in that: The support foot (2) and the connecting column (21) are integrated into an L-shape, the first cross bar (91) and the first connecting tube (911) are integrated into an L-shape, and the second cross bar (92) and the second connecting tube (921) are integrated into an L-shape.

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