Split combined type guardrail and guardrail assembling method

Abstract

The invention relates to the field of road guardrails, in particular to a split combined guardrail which comprises a plurality of stand columns and connecting parts located between every two adjacent stand columns, each stand column is provided with at least two vertical rotating blocks, each vertical rotating block is rotationally connected with a horizontal rotating block, and the rotating axis of each horizontal rotating block and the vertical center line of the corresponding stand column are located in the same vertical plane. The horizontal rotating block is detachably connected to the connecting part, so that the guardrail can be adaptively assembled and arranged when facing a road with a radian.

Description

Technical Field

[0001] The present application relates to the field of road guardrails, and in particular to a split combined guardrail and a guardrail assembly method. Background Art

[0002] Guardrails are set up in the middle of the road to separate lanes in different directions to ensure driving safety. In order to make it easier to maintain the guardrails and replace them after an accident, it is necessary to use a modular guardrail, that is, the components of the guardrail are detachably connected.

[0003] The existing combined guardrail includes two vertical columns, two horizontal connecting rods are installed between the two columns, and several vertical short rods are installed between the two connecting rods. For example, a combined guardrail with a publication number of CN221096068U.

[0004] Regarding the above-mentioned related technologies, since the connecting rod and the column are connected by plugging, it is difficult to apply them in situations such as curved roads where a certain horizontal angle between the connecting rod and the column needs to be changed. Summary of the invention

[0005] In order to make the split assembled guardrail better adaptable to use in scenarios such as curved roads, the present application provides a split combined guardrail and a guardrail assembly method.

[0006] In a first aspect, the present application provides a split-combination guardrail that adopts the following technical solution.

[0007] A split combined guardrail comprises a plurality of columns and a connecting portion between two adjacent columns, wherein the columns are provided with at least two vertical rotation blocks, each of which is rotationally connected to a horizontal rotation block, the rotation axis of the horizontal rotation block and the vertical center line of the column are located in the same vertical plane, and the horizontal rotation block is detachably connected to the connecting portion.

[0008] By adopting the above technical solution, when the road has an arc and the guardrail cannot be a completely straight line, the swivel block can be rotated to change the angle between the swivel block and the column in the horizontal plane, so as to better adapt to the scene where the angle between the connecting part and the column needs to be adjusted to a certain extent. There is no need to specially customize the guardrail, so as to improve the scope of application of the assembled guardrail.

[0009] Optionally, the horizontal rotation block is threadedly connected to a limited horizontal rotation rod, the vertical rotation block is provided with an adjustment arc whose center line is consistent with the rotation axis of the horizontal rotation block, the limited horizontal rotation rod is slidably connected to the adjustment arc around the center line of the horizontal rotation block, and the limited horizontal rotation rod is fixedly connected with a clamping piece that can abut against the vertical rotation block.

[0010] By adopting the above technical solution, when the angle of the swivel block needs to be adjusted, a distance is maintained between the pressing piece and the swivel block. After the adjustment is completed, the pressing piece is pressed against the swivel block to limit the random rotation of the swivel block after the angle is adjusted appropriately.

[0011] Optionally, the vertical rotation block is rotatably connected to the column, and the rotation axis of the vertical rotation block is perpendicular to the rotation axis of the horizontal rotation block.

[0012] By adopting the above technical solution, when the road surfaces where the two columns are located are not in the same plane, the vertical rotation block can be adjusted accordingly in the vertical plane to better adapt to the situation where there is a difference in height direction between two adjacent columns.

[0013] Optionally, the vertical rotating block is fixedly connected with a worm wheel, the axis of the worm wheel is consistent with the rotation axis of the vertical rotating block, the column is internally rotatably connected with a worm engaged with the worm wheel, and the column is internally rotatably connected with a turntable for driving the worm to rotate.

[0014] By adopting the above technical solution, the angle of the vertical rotation block in the vertical plane can be adjusted accordingly, and after the adjustment is completed, the angle of the vertical rotation block is not easy to change.

[0015] Optionally, a main gear is rotatably connected inside the column and is coaxially fixedly connected to the turntable. A main gear is provided corresponding to one or several worm gears at the same height. Each worm gear is coaxially fixedly connected to a slave gear. A control gear can mesh between the main gear and the corresponding one or several slave gears.

[0016] By adopting the above technical solution, all vertical rotation blocks can be adjusted to corresponding angles, thereby improving the adjustment efficiency.

[0017] Optionally, the control gear is rotatably connected to a gear slider, which is slidably connected to the inside of the column so that the control gear can be away from the corresponding master gear and slave gear. The gear slider is threadedly connected to a slider screw rotatably connected to the inside of the column, and the slider screw is coaxially fixedly connected to a screw rotating part exposed on the column.

[0018] By adopting the above technical solution, when a small deformation occurs at the connection between the connecting part and the translation block, the angle of the single vertical rotation block can be adjusted, so that the translation block and the connecting part can be connected more smoothly.

[0019] Optionally, the connecting portion includes a plurality of cross bars detachably connected to a plurality of swivel blocks in a one-to-one correspondence, a plurality of vertical bars located between two adjacent cross bars, and at least one mounting bar, wherein the vertical bars are plugged into the cross bars, and the mounting bar is detachably connected to the cross bars.

[0020] By adopting the above technical solution, only a small number of mounting rods need to be installed and fixed to the cross bars, and the vertical rods only need to be pre-plugged to the cross bars, so that the assembly and fixation of the connection parts can be realized more conveniently.

[0021] Optionally, the end of the cross rod is inserted into the translation block, and one end of the cross rod located in the translation block is fixedly connected to a rod end rack. The translation block is provided with a rack rod, and the rack rod is fixedly connected to an anti-slip rack that can engage with the rod end rack. A compression spring is detachably connected between the anti-slip rack and the translation block to force the anti-slip rack to move toward the rod end rack.

[0022] By adopting the above technical solution, when the connection part is subjected to a large impact, the cross bar can be separated from the swivel block to reduce the damage to the adjacent columns and reduce the subsequent repair costs.

[0023] Optionally, the opening area of ​​the swivel block for the cross bar to be inserted is larger than the end face area of ​​the cross bar, the rack rod can rotate, the compression spring is sleeved on the rack rod, the rack rod is sleeved and threadedly connected with a middle rod, the middle rod is rotatably connected with a spring rod for the compression spring to abut one end of the anti-slip rack, the spring rod is passed through and slidably connected to the rack rod.

[0024] By adopting the above technical solution, during the installation process of inserting the cross bar into the translation block, the spring rod is brought close to the anti-slip rack to facilitate the insertion of the cross bar corresponding to the translation block. After the installation of the cross bar corresponding to the translation block is completed, the spring rod is moved away from the anti-slip rack, so that the cross bar is not easily disengaged from the translation block under a relatively small external force.

[0025] In a second aspect, the present application provides a guardrail assembly method that adopts the following technical solution.

[0026] A guardrail assembly method is used to assemble the above-mentioned split combined guardrail, and specifically includes the following steps.

[0027] Step 1: Fix the first pillar on the road; Step 2, assemble the horizontal bar to the corresponding vertical bar and the mounting bar to obtain a connecting part; Step 3, rotate the turntable to adjust the angle of the horizontal rotating block in the vertical plane, and then rotate the horizontal rotating block to adjust the angle of the horizontal rotating block in its own rotation plane; Step 4: Insert the end of the cross bar into the horizontal rotating block, and then rotate the rack rod so that the anti-slip rack engages with the rack at the rod end; Step 5: Rotate the middle rod so that the spring rod is away from the anti-dropping rack; Step 6: Repeat the above steps to install the second column corresponding to the end of the cross bar away from the first column, then install the column corresponding to the ground, and repeat the assembly of the column and the connecting part.

[0028] By adopting the above technical solution, the guardrail as a whole can adapt to roads with a certain curvature and slope, thereby improving the overall applicability of the guardrail.

[0029] In summary, the present application includes at least the following beneficial effects: When the road has an arc and the guardrail cannot be a completely straight line, the swivel block can be rotated to change the angle between the swivel block and the column in the horizontal plane, so as to better adapt to the scene where the angle between the connecting part and the column needs to be adjusted to a certain extent. There is no need to specially customize the guardrail, so as to improve the scope of application of the assembled guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the guardrail of the present application showing two adjacent columns; Figure 2 It is a schematic diagram of a structure in which the cover plate on the side of a column and the cap on the top are removed; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. column; 2. connecting part; 21. compression spring; 22. middle rod; 23. spring rod; 3. vertical rotation block; 31. gear slider; 32. slider screw; 33. screw rotating member; 34. cross bar; 35. vertical rod; 36. mounting rod; 37. rod end rack; 38. rack rod; 39. anti-slip rack; 4. horizontal rotation block; 41. horizontal rotation limiting rod; 42. adjusting arc; 43. compression member; 44. worm wheel; 45. worm; 46. turntable; 47. main gear; 48. slave gear; 49. control gear. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] The present application embodiment discloses a split combined guardrail, referring to Figure 1 , including several columns 1 that can be fixed on the road surface via bolts, the height direction of the columns 1 is perpendicular to the road surface, and there is a connecting part 2 between two adjacent columns 1 to form a complete section of guardrail.

[0034] Reference Figure 1Each connecting part 2 includes two cross bars 34, several vertical bars 35 located between the two cross bars 34, and two mounting bars 36. The length direction of the cross bar 34 is perpendicular to the height direction of the column 1. The length directions of the mounting bars 36 and the vertical bars 35 are consistent with the height direction of the column 1. The two mounting bars 36 are located at both ends of the length direction of the cross bar 34. The mounting bars 36 can be connected and fixed via bolts, and the vertical bars 35 are plugged and fixed at the predetermined opening positions on the cross bar 34.

[0035] Reference Figure 2 and Figure 3 A row of two vertical rotation blocks 3 are installed on one side of the column 1 facing the connection part 2. The vertical rotation block 3 is rotatably connected to a horizontal rotation block 4 on the side facing the connection part 2. The rotation axis direction of the horizontal rotation block 4 is consistent with the height direction of the column 1. The end of the cross bar 34 can be inserted into the horizontal rotation block 4, so that the angle between the connection part 2 and the column 1 can be adjusted to a certain extent. A limited horizontal rotation rod 41 is sleeved and threadedly connected on the upper surface of the horizontal rotation block 4. An adjustment arc 42 is provided on the upper surface of the vertical rotation block 3 for the limited horizontal rotation rod 41 to pass through. The center line of the circle where the adjustment arc 42 is located is consistent with the rotation axis of the horizontal rotation block 4. The part of the limited horizontal rotation rod 41 exposed above the vertical rotation block 3 is fixedly connected to a pressing piece 43. The pressing piece 43 can be made of rubber, so that after the horizontal rotation block 4 completes the angle adjustment, the limited horizontal rotation rod 41 can be rotated so that the pressing piece 43 is pressed against the vertical rotation block 3 to limit the arbitrary rotation of the horizontal rotation block 4.

[0036] Reference Figure 2 and Figure 4 The vertical rotating block 3 is rotatably connected to the column 1, and the rotation axis of the vertical rotating block 3 is perpendicular to the rotation axis of the horizontal rotating block 4. Each vertical rotating block 3 is coaxially fixedly connected to a worm wheel 44 located in the column 1. Each worm wheel 44 in the column 1 is rotatably connected to a worm 45. The axis direction of the worm 45 is consistent with the height direction of the column 1. The worm 45 is meshed with the corresponding worm wheel 44. Each worm 45 is coaxially fixedly connected to a slave gear 48. A turntable 46 is rotatably connected to the upper part of the column 1. A cap can be installed on the upper part of the column 1 by screws to protect the turntable 46. The turntable 46 is coaxially fixedly connected to two main gears 47, and four control gears 49 are slidably connected inside the column 1. Each control gear 49 is located near a slave gear 48 and a main gear 47. At the same time, the column 1 is slidably connected to each control gear 49, and the sliding direction of the gear slider 31 is perpendicular to the surface of the column 1 where the vertical rotation block 3 is not set. The control gear 49 is rotatably connected to the corresponding gear slider 31. Four slider screws 32 are rotatably connected inside the column 1, and the slider screws 32 are penetrated and threadedly connected to the gear slider 31.

[0037] Reference Figure 2 and Figure 4The slider screw 32 is coaxially fixedly connected with a screw rotating member 33, which is inserted into the outer cover plate of the column 1 where the vertical rotation block 3 is not provided. The outer cover plate of the column 1 can be removed to repair the internal structure of the column 1. The screw rotating member 33 can be rotated by an inner hexagonal wrench, so that when the screw rotating member 33 is rotated, a corresponding number of vertical rotation blocks 3 can be driven to adjust, so that the vertical rotation blocks 3 of a column 1 can be fully or partially adjusted synchronously, so that when the column 1 is located at the intersection of the plane and the slope, the horizontal rotation blocks 4 on the opposite sides of the column 1 can better adapt to the two horizontal and inclined connection parts 2. And when there are slopes of different slopes on both sides of the column 1, the two rows of vertical rotation blocks 3 on the opposite sides of the column 1 can be rotated synchronously in the opposite direction by rotating the turntable 46, so as to speed up the adjustment speed of the vertical rotation blocks 3 at a column 1.

[0038] Reference Figure 3 The cross bar 34 is inserted into the upper surface of the end of the pan-rotating block 4 and is fixedly connected with a rod end rack 37. The length direction of the rod end rack 37 is consistent with the length direction of the cross bar 34. The pan-rotating block 4 is sleeved with and slidably connected with a rack rod 38. The length direction of the rack rod 38 is consistent with the direction of the rotation axis of the pan-rotating block 4. One end of the rack rod 38 located in the pan-rotating block 4 is fixedly connected with an anti-slip rack 39. The anti-slip rack 39 can be engaged with the rod end rack 37 to limit the easy separation of the cross bar 34. At the same time, the opening area of ​​the pan-rotating block 4 for the cross bar 34 to be inserted is larger than the end area of ​​the cross bar 34, so that the cross bar 34 can be smoothly inserted into the pan-rotating block 4, and the cross section of the rack rod 38 is circular, so that the rack rod 38 can rotate, so that when the cross bar 34 deflects at a small angle in the pan-rotating block, the anti-slip rack 39 can also be smoothly engaged with the rod end rack 37 by rotating the rack rod 38.

[0039] Reference Figure 3 The rack rod 38 is coaxially sleeved and threadedly connected with a middle rod 22 at the center thereof. A spring rod 23 is rotatably connected to one end of the middle rod 22 near the anti-slip rack 39. The spring rod 23 is located in the translation block 4. The length direction of the middle rod 22 is perpendicular to the length direction of the spring rod 23. Both ends of the spring rod 23 in the length direction are exposed to the rack rod 38. The rotation axis of the spring rod 23 is consistent with the axis of the middle rod 22. A compression spring 21 is inserted into the rack rod 38. Both ends of the compression spring 21 are in one-to-one contact with the spring rod 23 and the inner wall of the translation block 4 to force the anti-slip rack 39 to move toward the rod end rack 37, so that the cross bar 34 is not so easily detached. At the same time, when the connecting part 2 is subjected to a large impact, the corresponding cross bar 34 can also be smoothly detached from the translation block 4, so that the corresponding column 1 is not easily damaged. Furthermore, by rotating the middle rod 22 relative to the rack rod 38 , the distance between the spring rod 23 and the anti-slip rack 39 can be adjusted so that initially the cross bar 34 is not too laborious to be plugged into the corresponding swivel block 4 .

[0040] The implementation principle of a split combined guardrail in an embodiment of the present application is: through the angle adjustment of the horizontal rotation block 4 and the vertical rotation block 3, the angle between the connecting part 2 and the column 1 can be adjusted within a certain range to better adapt to roads with curvature or that are not completely flat, without the need for special customization, thereby improving the overall versatility of the guardrail.

[0041] The embodiment of the present application also discloses a guardrail assembly method, which specifically includes the following steps.

[0042] Step 1: Fix the first column 1 on the road using bolts; Step 2, assemble the horizontal rod 34 corresponding to the vertical rod 35 and the mounting rod 36 to obtain the connecting part 2; Step 3, rotating the turntable 46 to adjust the angle of the horizontal rotating block 4 in the vertical plane, and then rotating the horizontal rotating block 4 to adjust the angle of the horizontal rotating block 4 in its own rotation plane; Step 4, insert the end of the cross bar 34 into the horizontal rotating block 4, and then rotate the rack rod 38 so that the anti-slip rack 39 is engaged with the rod end rack 37; Step 5, rotating the middle rod 22 so that the spring rod 23 is away from the anti-slip rack 39; Step 6: Repeat the above steps to install the second column corresponding to the end of the cross bar 34 away from the first column 1, then install the column 1 corresponding to the ground, and repeat the assembly of the column 1 and the connecting part 2.

[0043] The implementation principle of a guardrail assembly method in an embodiment of the present application is as follows: the assembly of the connecting part 2 is simple, and the guardrail as a whole can better adapt to roads with curvature or slope.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A split combined guardrail, comprising a plurality of columns (1) and a connecting portion (2) located between two adjacent columns (1), characterized in that: The column (1) is provided with at least two vertical rotation blocks (3), each of which is rotatably connected to a horizontal rotation block (4), a rotation axis of the horizontal rotation block (4) and a vertical center line of the column (1) are located in the same vertical plane, and the horizontal rotation block (4) is detachably connected to the connecting portion (2).

2. A split combined guardrail according to claim 1, characterized in that: The horizontal rotation block (4) is threadedly connected to a limited horizontal rotation rod (41); the vertical rotation block (3) is provided with an adjustment arc opening (42) whose center line is consistent with the rotation axis of the horizontal rotation block (4); the limited horizontal rotation rod (41) is slidably connected to the adjustment arc opening (42) around the center line of the horizontal rotation block (4); and the limited horizontal rotation rod (41) is fixedly connected to a pressing piece (43) capable of abutting against the vertical rotation block (3).

3. The split combined guardrail according to claim 1, characterized in that: The vertical rotation block (3) is rotatably connected to the column (1), and the rotation axis of the vertical rotation block (3) is perpendicular to the rotation axis of the horizontal rotation block (4).

4. The split combined guardrail according to claim 3 is characterized in that: The vertical rotating block (3) is fixedly connected to a worm wheel (44), the axis of the worm wheel (44) is consistent with the rotation axis of the vertical rotating block (3), the column (1) is internally rotatably connected to a worm (45) meshing with the worm wheel (44), and the column (1) is internally rotatably connected to a rotating disk (46) for driving the worm wheel (45) to rotate.

5. The split combined guardrail according to claim 4, characterized in that: A main gear (47) coaxially fixedly connected to the rotating disk (46) is rotatably connected inside the column (1), one main gear (47) is provided corresponding to one or more worm gears (45) at the same height, each worm gear (45) is coaxially fixedly connected to a slave gear (48), and a control gear (49) can be meshed between the main gear (47) and the corresponding one or more slave gears (48).

6. The split combined guardrail according to claim 5, characterized in that: The control gear (49) is rotatably connected to a gear slider (31), the gear slider (31) is slidably connected to the inside of the column (1) so that the control gear (49) can be away from the corresponding main gear (47) and the slave gear (48), the gear slider (31) is threadedly connected to a slider screw (32) rotatably connected to the inside of the column (1), and the slider screw (32) is coaxially fixedly connected to a screw rotating member (33) exposed outside the column (1).

7. The split combined guardrail according to claim 1, characterized in that: The connecting portion (2) comprises a plurality of cross bars (34) which are detachably connected to the plurality of swivel blocks (4) in a one-to-one correspondence, a plurality of vertical bars (35) located between two adjacent cross bars (34), and at least one mounting bar (36), wherein the vertical bars (35) are plugged into the cross bars (34), and the mounting bar (36) is detachably connected to the cross bars (34).

8. The split combined guardrail according to claim 7, characterized in that: The end of the cross bar (34) is inserted into the translation block (4); one end of the cross bar (34) located in the translation block (4) is fixedly connected to a rod end rack (37); the translation block (4) is sleeved with a rack rod (38); the rack rod (38) is fixedly connected to an anti-slip rack (39) capable of meshing with the rod end rack (37); a compression spring (21) for forcing the anti-slip rack (39) to move toward the rod end rack (37) is detachably connected between the anti-slip rack (39) and the translation block (4).

9. The split combined guardrail according to claim 8, characterized in that: The opening area of ​​the swivel block (4) for the cross bar (34) to be inserted is larger than the end surface area of ​​the cross bar (34); the rack rod (38) is rotatable; the compression spring (21) is sleeved on the rack rod (38); the rack rod (38) is sleeved with and threadedly connected to a middle rod (22); the middle rod (22) is rotatably connected to a spring rod (23) for the compression spring (21) to abut against one end of the anti-slip rack (39); the spring rod (23) is penetrated and slidably connected to the rack rod (38).

10. A guardrail assembly method for assembling a split combined guardrail according to any one of claims 1 to 9, characterized in that: The specific steps include: Step 1: Fix the first pillar (1) on the road; Step 2, assembling the horizontal rod (34) corresponding to the vertical rod (35) and the mounting rod (36) to obtain the connecting part (2); Step 3, rotating the rotating disk (46) to adjust the angle of the swivel block (4) in the vertical plane, and then rotating the swivel block (4) to adjust the angle of the swivel block (4) in its own rotation plane; Step 4, insert the end of the cross bar (34) into the horizontal rotating block (4), and then rotate the rack rod (38) so that the anti-slip rack (39) is engaged with the rod end rack (37); Step 5, rotating the middle rod (22) so that the spring rod (23) is away from the anti-slip rack (39); Step 6: Repeat the above steps to install the second column corresponding to the end of the cross bar (34) away from the first column (1), then install the column (1) corresponding to the ground, and repeat the assembly of the column (1) and the connecting part (2).

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