An assembled guardrail

Abstract

The present invention discloses an assembled guardrail, comprising: at least two columns arranged at a preset distance apart, at least two of the columns respectively having an assembly hole, and the positions of the assembly holes correspond to each other; at least one handrail tube, at least one handrail tube is installed in the assembly hole, and the area of ​​the handrail tube corresponding to at least one of the columns has a plurality of first positioning parts; at least one positioning plate, the positioning plate is installed at the position where the column and the handrail tube are connected, the positioning plate forms a second positioning part near the position of the handrail tube, the first positioning part abuts against the second positioning part to limit the position of the handrail tube in the length direction of the handrail tube. When the handrail tube is installed in the assembly hole of the column, the first positioning part and the second positioning part abut against each other to align and limit the handrail tube in the length extension direction, without the need for welding, and with good stability.

Description

Technical Field

[0001] The present invention relates to the field of construction, and further relates to an assembled guardrail. Background Art

[0002] During the construction and operation of high-speed railway bridges, guardrails are usually installed on both sides of the bridge to ensure the safety of construction and maintenance personnel. Conventional guardrails are usually in the form of structural steel, including guardrail steel columns, upper handrail steel pipes, middle handrail steel pipes, and lower handrail steel pipes. The steel columns are provided with handrail holes and arc-shaped grooves for the handrail steel pipes to pass through. The middle handrail steel pipes and lower handrail steel pipes pass through the handrail holes of the guardrail steel columns, and the upper handrail steel pipes are installed in the arc-shaped grooves of the steel columns and fixed by welding. Multiple shorter handrail steel pipes on the same handrail steel pipe are usually connected by lining steel pipes, and the two ends are fixed to the columns with bolts.

[0003] Existing guardrail structures require extensive welding and fixing, resulting in a low degree of assembly and low material utilization. Furthermore, welding compromises the corrosion resistance and durability of components. The connection between the handrail steel pipe and the column is unstable, making it susceptible to lateral movement due to vibrations from passing trains and wind loads, compromising structural safety. Summary of the Invention

[0004] In response to the above technical problems, the purpose of the present invention is to provide an assembled guardrail. When the handrail tube is installed in the assembly hole of the column, the first positioning part and the second positioning part abut against each other to align and limit the length extension direction of the handrail tube. No welding is required and the stability is good.

[0005] In order to achieve the above object, the present invention provides an assembled guardrail, comprising:

[0006] At least two columns are arranged at a preset distance apart, at least two of the columns respectively have assembly holes, and the positions of the assembly holes correspond to each other;

[0007] At least one handrail tube, at least one said handrail tube is installed in the said assembly hole, and the area of ​​the said handrail tube corresponding to at least one said column has a plurality of first positioning parts;

[0008] At least one positioning plate is installed at the position where the column is connected to the handrail tube, and the positioning plate forms a second positioning portion close to the handrail tube. The first positioning portion abuts against the second positioning portion to limit the handrail tube in the length direction of the handrail tube.

[0009] In some embodiments, the first positioning portion includes a plurality of spaced-apart convex teeth, with tooth grooves formed between adjacent convex teeth; the second positioning portion includes a positioning protrusion, the positioning protrusion is adapted to the tooth groove, and the positioning protrusion abuts against the tooth groove.

[0010] In some embodiments, a top of the positioning plate has a positioning groove, the second positioning portion is located at the bottom of the positioning groove, and at least a portion of the protruding tooth is installed in the positioning groove.

[0011] In some embodiments, the column has an anti-rotation hole connected to the assembly hole, and when the handrail tube is installed in the assembly hole, part of the protruding teeth are installed in the anti-rotation hole.

[0012] In some embodiments, the at least one handrail tube includes a first handrail tube, a second handrail tube and a third handrail tube arranged in sequence from top to bottom, and the column has a first assembly hole, a second assembly hole and a third assembly hole in sequence from top to bottom, the first handrail tube is installed in the first assembly hole, the second handrail tube is installed in the second assembly hole, and the third handrail tube is installed in the third assembly hole; the at least one positioning plate includes a first positioning plate, a second positioning plate and a third positioning plate, the first positioning plate is arranged on one side of the first assembly hole, and is suitable for abutting against the first handrail tube, the second positioning plate is arranged on one side of the second assembly hole, and is suitable for abutting against the second handrail tube, and the third positioning plate is arranged on one side of the third assembly hole, and is suitable for abutting against the third handrail tube.

[0013] In some embodiments, the at least one handrail tube includes a first handrail tube, a second handrail tube and a third handrail tube arranged in sequence from top to bottom, and the column has a first assembly hole, a second assembly hole and a third assembly hole in sequence from top to bottom, the first handrail tube is installed in the first assembly hole, the second handrail tube is installed in the second assembly hole, and the third handrail tube is installed in the third assembly hole; the positioning plate has a first positioning groove, a second positioning groove and a third positioning groove in sequence from top to bottom, and the positioning plate is installed on one side of the first handrail tube, the second handrail tube and the third handrail tube, and part of the first handrail tube is installed in the first positioning groove, part of the second handrail tube is installed in the second positioning groove, and part of the third handrail tube is installed in the third positioning groove.

[0014] In some embodiments, the handrail tube includes a first sub-handrail tube and a second sub-handrail tube, one end of the first sub-handrail tube has a first insertion groove, one end of the second sub-handrail tube has an insertion end, and the insertion end is plugged into the first insertion groove.

[0015] In some embodiments, the first sub-handrail tube has an anti-rotation groove at one end forming the first insertion groove, and the anti-rotation groove is connected to the first insertion groove; the insertion end of the second sub-handrail tube has an anti-rotation protrusion; when the insertion end is inserted into the first insertion groove, the anti-rotation protrusion is inserted into the anti-rotation groove.

[0016] In some embodiments, the second sub-handrail tube further includes a waterproof sleeve arranged on the outside of the insertion end, and a second insertion groove is formed between the waterproof sleeve and the insertion end; when the insertion end of the second sub-handrail tube is inserted into the first insertion groove of the first sub-handrail tube, the end of the first sub-handrail tube forming the first insertion groove is inserted into the second insertion groove.

[0017] In some embodiments, the assembled guardrail further includes a base plate installed at the bottom of the column, the width of the base plate is greater than the width of the column, and a mounting hole is provided at a preset position of the base plate, which is suitable for connecting with an anchor bolt on the mounting plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of the assembled guardrail according to the preferred embodiment of the present invention;

[0020] Figure 2 Schematic diagram of the structure of the columns and positioning plates of the assembled guardrail in a preferred embodiment of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the connection between the upright post and the handrail pipe of the assembled guardrail in a preferred embodiment of the present invention;

[0022] Figure 4 2 is a schematic structural diagram of a first positioning portion of an assembled guardrail according to a preferred embodiment of the present invention;

[0023] Figure 5 1 is a schematic structural diagram of a positioning plate of an assembled guardrail according to a preferred embodiment of the present invention;

[0024] Figure 6 yes Figure 5 Schematic diagram of the cross-section structure along the AA line;

[0025] Figure 7 A schematic structural diagram of a first sub-handrail tube of an assembled guardrail according to a preferred embodiment of the present invention;

[0026] Figure 8 yes Figure 7 Schematic diagram of the cross-sectional structure along the middle BB line;

[0027] Figure 9 2 is a schematic structural diagram of a second sub-handrail tube of an assembled guardrail according to a preferred embodiment of the present invention;

[0028] Figure 10 yes Figure 9 Schematic diagram of the cross-section structure along the CC line;

[0029] Figure 11 This is a structural diagram of the connection between the first sub-handrail tube and the second sub-handrail tube in a modified embodiment of the assembled guardrail of the preferred embodiment of the present invention;

[0030] Figure 12 This is a structural schematic diagram of a modified embodiment of a positioning plate of an assembled guardrail according to a preferred embodiment of the present invention;

[0031] Figure 13 It is a structural schematic diagram of a modified implementation of the column of the assembled guardrail of the preferred embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0033] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0034] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0035] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0036] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] refer to Figures 1 to 13 The present application provides an assembled guardrail, which includes: at least two columns 10 arranged at a preset distance, at least one handrail tube 20 and at least one positioning plate 30. At least two of the columns 10 respectively have an assembly hole 11, and the positions of the assembly holes 11 correspond to each other. At least one handrail tube 20 is installed in the assembly hole 11, and the handrail tube 20 has a plurality of first positioning portions 21 in the area corresponding to at least one of the columns 10. The positioning plate 30 is installed at the position where the column 10 is connected to the handrail tube 20, and the positioning plate 30 forms a second positioning portion 31 near the position of the handrail tube 20, and the first positioning portion 21 abuts against the second positioning portion 31 to limit the handrail tube 20 in the length direction of the handrail tube 20.

[0038] In the present application, when the handrail tube 20 is installed in the assembly hole 11, the first positioning portion 21 and the second positioning portion 31 abut against each other to align and limit the length of the handrail tube 20, without the need for welding, and with good stability.

[0039] Specifically, the assembled guardrail further includes a first screw 32, which passes through a preset position of the column 10 and the positioning plate 30 to secure the positioning plate 30 to one side of the column 10. Furthermore, the column 10 and the positioning plate 30 are provided with corresponding screw holes for the first screw 32 to pass through. During assembly, the handrail tube 20 is first installed in the assembly hole 11, and then the positioning plate 30 is secured to the column 10 so that the second positioning portion 31 abuts the first positioning portion 21.

[0040] refer to Figure 1 、 Figure 3 as well as Figure 4 Specifically, the first positioning portion 21 includes a plurality of spaced-apart convex teeth 211, and a tooth groove 212 is formed between adjacent convex teeth 211. The second positioning portion 31 abuts against the tooth groove 212, and the handrail tube 20 is limited in its length direction by the cooperation between the second positioning portion 31 and the tooth groove 212.

[0041] Furthermore, the top of the positioning plate 30 has a positioning groove 33, the second positioning portion 31 is located at the bottom of the positioning groove 33, and at least a portion of the protruding tooth 211 is installed in the positioning groove 33. The width of the positioning groove 33 matches the width of the protruding tooth 211. When the protruding tooth 211 is installed in the positioning groove 33, the protruding tooth 211 abuts against the inner wall of the positioning groove 33, thereby preventing the handrail tube 20 from rotating relative to the column 10. It should be noted that the width described in this application refers to a direction perpendicular to the axial direction of the handrail tube 20 and parallel to the guardrail mounting surface.

[0042] refer to Figure 1 、 Figure 3 as well as Figure 5 , the second positioning portion 31 of the positioning plate 30 includes a positioning protrusion 311, and the positioning protrusion 311 is a structure that is high in the middle and low on both sides. Correspondingly, the tooth groove 212 of the first positioning portion 21 is a structure with an opening gradually decreasing along the depth direction. The positioning protrusion 311 is adapted to the tooth groove 212, and the positioning protrusion 311 abuts against the tooth groove 212. Preferably, in a cross section perpendicular to the axial direction of the handrail tube 20, the cross-sectional shape of the positioning protrusion 311 is a triangle, and correspondingly, the cross-sectional profile of the tooth groove 212 is also a triangle. Reference Figure 1 In some embodiments, the cross-sectional shapes of the positioning protrusion 311 and the tooth groove 212 are both right triangles. Figure 3 、 Figure 4 as well as Figure 5 The cross-sectional shapes of the positioning protrusion 311 and the tooth groove 212 are both isosceles triangles.

[0043] It should be pointed out that in the present application, through the mutual cooperation between the positioning protrusion 311 and the tooth groove 212, on the one hand, the handrail tube 20 can be limited in the axial direction; on the other hand, through the relative position of the positioning protrusion 311 and the tooth groove 212, the installation position of the handrail tube 20 can be easily determined, thereby improving the assembly accuracy.

[0044] refer to Figure 13 In some embodiments, the column 10 has an anti-rotation hole 12 connected to the assembly hole 11. When the handrail tube 20 is installed in the assembly hole 11, part of the protruding teeth 211 are installed in the anti-rotation hole 12. When the positioning plate 30 is installed on the column 10, the position of the anti-rotation hole 12 corresponds to the position of the positioning groove 33. Like the function of the positioning groove 33, the anti-rotation hole 12 can also prevent the handrail tube 20 from rotating relative to the column 10.

[0045] refer to Figure 1Specifically, the at least one handrail tube 20 includes a first handrail tube 221, a second handrail tube 222, and a third handrail tube 223, which are sequentially arranged from top to bottom. The column has a first assembly hole 131, a second assembly hole 132, and a third assembly hole 133, which are sequentially arranged from top to bottom. The first handrail tube 221 is installed in the first assembly hole 131, the second handrail tube 222 is installed in the second assembly hole 132, and the third handrail tube 223 is installed in the third assembly hole 133. The at least one positioning plate 30 includes a first positioning plate 341, a second positioning plate 342, and a third positioning plate 343. The first positioning plate 341 is arranged on one side of the first assembly hole 131 and is suitable for abutting against the first handrail tube 221. The second positioning plate 342 is arranged on one side of the second assembly hole 132 and is suitable for abutting against the second handrail tube 222. The third positioning plate 343 is arranged on one side of the third assembly hole 133 and is suitable for abutting against the third handrail tube 223. It is understandable that in some modified embodiments, the number of the handrail tubes 20 can also be implemented as two or more than four, and the specific number of the handrail tubes 20 should not constitute a limitation to the present application.

[0046] Preferably, the positioning plate 30 is located below the handrail tube 20, so that the connection between the positioning plate 30 and the handrail tube 20 can be placed in a relatively concealed position, thereby improving the overall aesthetics of the guardrail. On the other hand, arranging the positioning plate 30 below the handrail tube 20 can prevent the connection between the positioning plate 30 and the handrail tube 20 from being exposed to sunlight and directly washed by rainwater, thereby improving the corrosion resistance of the positioning plate 30. It is understandable that in some modified embodiments, the positioning plate 30 can also be arranged above, on the left side, or on the right side of the handrail tube 20, and the specific installation position of the positioning plate 30 should not constitute a limitation to the present application.

[0047] refer to Figure 12In some modified embodiments, the positioning plate 30 is mounted on one side of the handrail tube 20, and along the height direction of the column 10, the top of the positioning plate 30 exceeds the topmost handrail tube 20, and the bottom of the positioning plate 30 exceeds the bottommost handrail tube 20. The positioning plate 30 has a first positioning groove 331, a second positioning groove 332, and a third positioning groove 333 from top to bottom. The positioning plate 30 is mounted on one side of the first handrail tube 221, the second handrail tube 222, and the third handrail tube 223, and the first handrail tube 221 is mounted in the first positioning groove 331, the second handrail tube 222 is mounted in the second positioning groove 332, and the third handrail tube 223 is mounted in the third positioning groove 333. In this modified embodiment, one positioning plate 30 has positioning grooves 33 corresponding to multiple handrail tubes 20. During the assembly process, after the handrail tube 20 is installed, the positioning plate 30 can be fixedly installed on one side of the handrail tube 20, which can improve the assembly efficiency of the positioning plate 30.

[0048] refer to Figures 7 to 10 Furthermore, the handrail tube 20 includes a first sub-handrail tube 231 and a second sub-handrail tube 232. One end of the first sub-handrail tube 231 has a first insertion slot 2310, and one end of the second sub-handrail tube 232 has an insertion end 2321, and the insertion end 2321 is plugged into the first insertion slot 2310. In this embodiment, the longer handrail tube 20 is formed by plugging two shorter sub-handrail tubes into each other. In some variant embodiments, the handrail tube 20 can include more than three sub-handrail tubes. In this case, one end of the middle sub-handrail tube is the first insertion slot 2310, and the other end is the insertion end 2321. The number of sub-handrail tubes included in the handrail tube 20 should not constitute a limitation to this application.

[0049] refer to Figure 8 Furthermore, one end of the first sub-handrail tube 231 forming the first insertion slot 2310 has an anti-rotation groove 2311, which is in communication with the first insertion slot 2310. The insertion end 2321 of the second sub-handrail tube 232 has an anti-rotation protrusion 2322. When the insertion end 2321 is inserted into the first insertion slot 2310, the anti-rotation protrusion 2322 is inserted into the anti-rotation groove 2311. The interaction between the anti-rotation groove 2311 and the anti-rotation protrusion 2322 prevents the insertion end 2321 from rotating within the first insertion slot 2310, thereby improving the stability of the assembly between the first sub-handrail tube 231 and the second sub-handrail tube 232.

[0050] refer to Figure 11In one variant embodiment, the second sub-handrail tube 232 further includes a waterproof cover 2323 disposed outside the insertion end 2321. A second insertion slot 2320 is formed between the waterproof cover 2323 and the insertion end 2321. When the insertion end 2321 of the second sub-handrail tube 232 is inserted into the first insertion slot 2310 of the first sub-handrail tube 231, the end of the first sub-handrail tube 231 forming the first insertion slot 2310 is inserted into the second insertion slot 2320, i.e., the sidewall of the first insertion slot 2310 is inserted into the second insertion slot 2320. The waterproof cover 2323 shields the connection between the insertion end 2321 and the first insertion slot 2310, preventing liquids such as rainwater from directly entering the first insertion slot 2310 through the connection between the insertion end 2321 and the first insertion slot 2310. Preferably, the waterproof cover 2323 is made of rubber. In some embodiments, the waterproof cover 2323 can also be made of the same material as the handrail tube 20.

[0051] refer to Figure 1 and Figure 2 Furthermore, the assembled guardrail further includes a base plate 40 mounted on the bottom of the column 10. The width of the base plate 40 is greater than the width of the column 10. The base plate 40 has mounting holes at predetermined locations suitable for connection with anchor bolts 50 on the mounting surface. Preferably, the anchor bolts 50 are pre-buried within the mounting surface, with their top ends extending outside the mounting surface. The base plate 40 can be fixed to the mounting surface by aligning the mounting holes with the anchor bolts 50 using bolts. In some variations, the base plate 40 can also be fixed directly by screwing screws through the mounting holes.

[0052] It should also be pointed out that in the present application, the number of the columns 10 is more than two. The first positioning portion 21 is provided at both ends of the handrail tube 20, and the positioning plates 30 are installed on the two columns 10 corresponding to the two ends of the handrail tube 20 to limit the positions of the handrail tube 20 respectively. In some modified embodiments, when the number of the columns 10 is more than three, the positioning plates 30 can also be provided at the position of each column 10 corresponding to the handrail tube 20 to limit the handrail tube 20 at different positions of the handrail tube 20.

[0053] refer to Figure 1For example, there are four columns 10. The two outer columns 10 are connected to the handrail tube 20 with the positioning plates 30, and the two middle columns 10 are connected to the handrail tube 20 with fastening plates 61. The fastening plates 61 are fixed to the columns 10 via second fastening screws. The tops of the fastening plates 61 have fastening grooves (not shown in the figure), and at least a portion of the handrail tube 20 is installed in the fastening grooves. The fastening plates 61 abut against the handrail tube 20, providing support for the handrail tube 20 and preventing it from shaking up and down in the assembly hole 11.

[0054] In the assembled guardrail provided in the present application, an assembled method is adopted, and there is no need for on-site welding, which improves the corrosion resistance and durability of the component. The mutual cooperation between the first positioning portion 21 and the second positioning portion 31 can limit the handrail tube 20 in the axial direction. The mutual cooperation between the anti-rotation protrusion 2322 and the anti-rotation groove 2311 can prevent the first sub-handrail tube 231 and the second sub-handrail tube 232 from rotating relative to each other, avoiding the vibration generated by the passing of the train and the lateral movement under the action of wind load, thereby improving the structural safety.

[0055] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. An assembled guardrail, characterized in that: include: At least two columns are arranged at a preset distance apart, at least two of the columns respectively have assembly holes, and the positions of the assembly holes correspond to each other; At least one handrail tube, at least one said handrail tube is installed in the said assembly hole, and the area of ​​the said handrail tube corresponding to at least one said column has a plurality of first positioning parts; At least one positioning plate, the positioning plate being installed at a position where the upright column and the handrail tube are connected, the positioning plate forming a second positioning portion near the handrail tube, the first positioning portion abutting against the second positioning portion to limit the position of the handrail tube in the length direction of the handrail tube; The first positioning portion includes a plurality of spaced-apart convex teeth, with tooth grooves formed between adjacent convex teeth; the second positioning portion includes a positioning protrusion, the positioning protrusion is adapted to the tooth groove, and the positioning protrusion abuts against the tooth groove; The top of the positioning plate is provided with a positioning groove, the second positioning portion is located at the bottom of the positioning groove, and at least a portion of the protruding teeth is installed in the positioning groove.

2. The assembled guardrail according to claim 1, characterized in that: The column has an anti-rotation hole connected to the assembly hole. When the handrail tube is installed in the assembly hole, part of the protruding teeth are installed in the anti-rotation hole.

3. The assembled guardrail according to claim 2, characterized in that: The at least one handrail tube includes a first handrail tube, a second handrail tube, and a third handrail tube arranged in sequence from top to bottom, and the column has a first assembly hole, a second assembly hole, and a third assembly hole in sequence from top to bottom, the first handrail tube is installed in the first assembly hole, the second handrail tube is installed in the second assembly hole, and the third handrail tube is installed in the third assembly hole; The at least one positioning plate includes a first positioning plate, a second positioning plate and a third positioning plate. The first positioning plate is arranged on one side of the first assembly hole and is suitable for abutting against the first handrail tube. The second positioning plate is arranged on one side of the second assembly hole and is suitable for abutting against the second handrail tube. The third positioning plate is arranged on one side of the third assembly hole and is suitable for abutting against the third handrail tube.

4. The assembled guardrail according to claim 3, characterized in that: The at least one handrail tube includes a first handrail tube, a second handrail tube, and a third handrail tube arranged in sequence from top to bottom, and the column has a first assembly hole, a second assembly hole, and a third assembly hole in sequence from top to bottom, the first handrail tube is installed in the first assembly hole, the second handrail tube is installed in the second assembly hole, and the third handrail tube is installed in the third assembly hole; The positioning plate has a first positioning groove, a second positioning groove and a third positioning groove from top to bottom. The positioning plate is installed on one side of the first handrail tube, the second handrail tube and the third handrail tube, and part of the first handrail tube is installed in the first positioning groove, part of the second handrail tube is installed in the second positioning groove, and part of the third handrail tube is installed in the third positioning groove.

5. The assembled guardrail according to any one of claims 1 to 4, characterized in that: The handrail tube includes a first sub-handrail tube and a second sub-handrail tube, one end of the first sub-handrail tube has a first insertion groove, one end of the second sub-handrail tube has an insertion end, and the insertion end is plugged into the first insertion groove.

6. The assembled guardrail according to claim 5, characterized in that: The first sub-handrail tube has an anti-rotation groove at one end forming the first insertion groove, and the anti-rotation groove is connected to the first insertion groove; the insertion end of the second sub-handrail tube has an anti-rotation protrusion; when the insertion end is inserted into the first insertion groove, the anti-rotation protrusion is inserted into the anti-rotation groove.

7. The assembled guardrail according to claim 6, characterized in that: The second sub-handrail tube also includes a waterproof sleeve arranged on the outside of the insertion end, and a second insertion groove is formed between the waterproof sleeve and the insertion end; when the insertion end of the second sub-handrail tube is inserted into the first insertion groove of the first sub-handrail tube, the end of the first sub-handrail tube forming the first insertion groove is inserted into the second insertion groove.

8. The assembled guardrail according to claim 7, characterized in that: The assembled guardrail further includes a base plate installed at the bottom of the column, the width of the base plate is greater than the width of the column, and a mounting hole is provided at a preset position of the base plate, which is suitable for connection with an anchor bolt on the mounting plane.

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