Height limiting frame for municipal road

Abstract

The utility model discloses a height limiting frame for municipal roads, which relates to the field of height limiting frames and comprises upright posts, flanges are formed at the end parts of the upright posts, a top connecting pipe is arranged at the top of the upmost upright post, flanges are integrally formed at the bottom end of the top connecting pipe, and the upper and lower adjacent flanges are fixedly connected through bolts and nuts. Rubber sealing rings are installed on the contact faces of the adjacent flanges, guide rods extending upwards are welded to the top of the top connecting pipe, the tops of the two guide rods adjacent in the left-right direction are welded to the bottom end of the same transverse plate, and an adjusting mechanism extending downwards is arranged above the transverse plate. And a height limiting rod is mounted at the bottom end of the adjusting mechanism. Through the design of the adjusting mechanism, when the height of the height limiting rod is adjusted, the height of the stand column does not need to be adjusted, only the height of the height limiting rod needs to be adjusted, and compared with an adjusting mode of the stand column, the adjusting convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of height restriction structures, specifically a height restriction structure for municipal roads. Background Technology

[0002] Height restriction barriers are mainly used as portal frames at the entrances of bridges, culverts, and tunnels. They are generally made of welded steel structures and serve to protect bridges, culverts, and tunnels. They have signs indicating the height restriction in meters to remind vehicles of the height limit.

[0003] Height restriction frames are divided into fixed height restriction frames and adjustable height restriction frames. Existing adjustable height restriction frames can only adjust the height by adjusting the height of the uprights. However, the uprights are made of all steel and have a large diameter, so adjusting this part of the height requires a lot of effort and is inconvenient to operate. Utility Model Content

[0004] The purpose of this utility model is to provide a height restriction structure for municipal roads in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a height restriction frame for municipal roads, comprising a column, the end of which is formed with a flange, a top connecting pipe is provided at the top of the uppermost column, the bottom end of which is integrally formed with a flange, adjacent flanges are fixedly connected by bolts and nuts, and rubber sealing rings are installed on the contact surfaces of adjacent flanges, an upwardly extending guide rod is welded to the top of the top connecting pipe, the tops of two adjacent left and right guide rods are welded to the bottom end of the same horizontal plate, a downwardly extending adjustment mechanism is provided above the horizontal plate, a height restriction rod is installed at the bottom end of the adjustment mechanism, and reinforcing pipes are welded to the inner sides of the two adjacent left and right guide rods.

[0006] As a further embodiment of this utility model: the adjusting mechanism includes a screw located above the horizontal plate and extending downwards, the screw extending downwards and penetrating the horizontal plate and the reinforcing tube, the outer wall of the screw located above the horizontal plate is threaded with an upper limit nut, the outer wall of the screw located below the reinforcing tube is threaded with a lower limit nut, and a fixing ring is welded to the bottom end of the screw.

[0007] As a further improvement of this utility model: a first circular hole is formed inside the fixing ring, and a height limiting rod is welded to the inner wall of the first circular hole.

[0008] As a further embodiment of this utility model: sliding rings are welded to both ends of the height limiting rod, and a second circular hole is formed inside the sliding ring. The sliding ring is sleeved on the outer wall of the guide rod, and the inner diameter of the second circular hole is equal to the outer diameter of the guide rod.

[0009] As a further improvement of this utility model, the interior of the horizontal plate and the reinforcing tube is provided with through holes for the screw to slide.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By setting up an adjustment mechanism, the design of the adjustment mechanism allows for adjusting the height of the height limit bar without adjusting the height of the column. Only the height limit bar needs to be adjusted, which improves the convenience of adjustment compared to adjusting the column. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 For the present utility model Figure 1 Enlarged view of a portion of point A in the middle;

[0014] Figure 3 This is a schematic diagram of the through hole of this utility model.

[0015] In the diagram: 1. Column; 2. Top connecting pipe; 3. Guide rod; 4. Horizontal plate; 5. Reinforcing pipe; 6. Height limit rod; 7. Fixing ring; 8. Screw; 9. Sliding ring; 10. Through hole; 11. Upper limit nut; 12. Lower limit nut. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-3 In this embodiment of the utility model, a height restriction frame for municipal roads includes a column 1, with a flange formed at the end of the column 1. A top connecting pipe 2 is provided at the top of the uppermost column 1, and a flange is integrally formed at the bottom end of the top connecting pipe 2. The upper and lower adjacent flanges are fixedly connected by bolts and nuts, and rubber sealing rings are installed on the contact surfaces of the adjacent flanges. An upwardly extending guide rod 3 is welded to the top of the top connecting pipe 2. The tops of two adjacent guide rods 3 on the left and right are welded to the bottom end of the same horizontal plate 4. A downwardly extending adjustment mechanism is provided above the horizontal plate 4, and a height restriction rod 6 is installed at the bottom end of the adjustment mechanism. A reinforcing pipe 5 is welded to the inner side of the two adjacent guide rods 3 on the left and right.

[0018] In this embodiment: First, the device is assembled using flanges, bolts, and nuts and installed in a preset position. Then, the height limit bar 6 is adjusted to a preset height above the ground by rotating the adjustment mechanism. However, during long-term use, roads may undergo repairs, repaving, or other changes in road surface height. Therefore, after the road is repaved, it is necessary to remeasure the distance between the bottom of the height limit bar 6 and the newly paved road surface. If the distance between the two does not change, there is no need to adjust the position of the height limit bar 6. If the distance between the two changes, the height of the height limit bar 6 needs to be adjusted using the adjustment mechanism.

[0019] Please refer to this carefully. Figure 2 The adjustment mechanism includes a screw 8 located above the horizontal plate 4 and extending downwards. The screw 8 extends downwards and passes through the horizontal plate 4 and the reinforcing tube 5. The outer wall of the screw 8 is threaded with an upper limit nut 11 above the horizontal plate 4, and the outer wall of the screw 8 is threaded with a lower limit nut 12 below the reinforcing tube 5. A fixing ring 7 is welded to the bottom end of the screw 8. A first circular hole is formed inside the fixing ring 7, and a height limiting rod 6 is welded to the inner wall of the first circular hole.

[0020] In this embodiment: when the height between the bottom of the height limit bar 6 and the road surface is less than the height limit, the height limit bar 6 needs to be adjusted upward. At this time, a wrench is first used to connect with the lower limit nut 12, and the lower limit nut 12 is rotated by the wrench to make the lower limit nut 12 screwed downward until the distance the lower limit nut 12 moves downward is equal to the difference. Then, the wrench is used to connect with the upper limit nut 11, and the upper limit nut 11 is rotated by the wrench. At this time, due to the restriction of the horizontal plate 4, the position of the upper limit nut 11 remains unchanged, while the screw 8 will move vertically upward under the limit of its thread. The vertically upward moving screw 8 pulls the height limit bar 6 upward through the fixing ring 7 until the lower limit nut 12 effectively abuts against the bottom end of the reinforcing tube 5, and the adjustment is completed.

[0021] When the height between the bottom of the height restriction bar 6 and the road surface is greater than the height restriction height, the height restriction bar 6 needs to be adjusted downwards. At this time, use a wrench to connect with the upper limit nut 11, and rotate the upper limit nut 11 with the wrench to make the upper limit nut 11 screwed upwards relative to the screw rod 8. At this time, the screw rod 8 moves downwards until the distance and difference between the top of the lower limit nut 12 and the reinforcing tube 5 are equal, and the adjustment is completed. Then, use a wrench to connect with the lower limit nut 12 again, and rotate the lower limit nut 12 to make it screwed upwards until the lower limit nut 12 is again against the bottom of the reinforcing tube 5, and the adjustment is completed.

[0022] Please refer to this carefully. Figure 3 The height limit rod 6 has sliding rings 9 welded to both ends. The sliding rings 9 have a second circular hole formed inside. The sliding rings 9 are sleeved on the outer wall of the guide rod 3, and the inner diameter of the second circular hole is equal to the outer diameter of the guide rod 3.

[0023] In this embodiment: during the process of adjusting the height of the height limiting rod 6, the height limiting rod 6 drives the sliding ring 9 to slide up and down along the outer wall of the guide rod 3. Since the two are interlocked, the movement direction of the height limiting rod 6 can be restricted, thereby improving the impact resistance of the height limiting rod 6.

[0024] Please refer to this carefully. Figure 3 The inside of the horizontal plate 4 and the reinforcing tube 5 is provided with a through hole 10 for the screw 8 to slide.

[0025] In this embodiment: during the up-and-down movement of the screw 8, the screw 8 moves up and down along the through hole 10, and the through hole 10 provides a guide for the movement of the screw 8.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A height restriction frame for municipal roads, comprising columns (1), characterized in that, The end of the column (1) is formed with a flange, and the top of the uppermost column (1) is provided with a top connecting pipe (2). The bottom end of the top connecting pipe (2) is integrally formed with a flange. The upper and lower adjacent flanges are fixedly connected by bolts and nuts, and rubber sealing rings are installed on the contact surface of the adjacent flanges. The top of the top connecting pipe (2) is welded with an upwardly extending guide rod (3). The tops of the two adjacent guide rods (3) on the left and right are welded to the bottom end of the same horizontal plate (4). The upper part of the horizontal plate (4) is provided with a downwardly extending adjustment mechanism. The bottom end of the adjustment mechanism is equipped with a height limiting rod (6). The inner side of the two adjacent guide rods (3) on the left and right is welded with a reinforcing pipe (5).

2. The height restriction frame for municipal roads according to claim 1, characterized in that, The adjustment mechanism includes a screw (8) located above the horizontal plate (4) and extending downward. The screw (8) extends downward and passes through the horizontal plate (4) and the reinforcing tube (5). An upper limit nut (11) is threadedly connected to the outer wall of the screw (8) above the horizontal plate (4), and a lower limit nut (12) is threadedly connected to the outer wall of the screw (8) below the reinforcing tube (5). A retaining ring (7) is welded to the bottom end of the screw (8).

3. A height restriction frame for municipal roads according to claim 2, characterized in that, The fixed ring (7) has a first circular hole formed inside, and a height limiting rod (6) is welded to the inner wall of the first circular hole.

4. A height restriction frame for municipal roads according to claim 3, characterized in that, The height limiting rod (6) has sliding rings (9) welded to both ends. The sliding rings (9) have a second circular hole formed inside. The sliding rings (9) are sleeved on the outer wall of the guide rod (3), and the inner diameter of the second circular hole is equal to the outer diameter of the guide rod (3).

5. A height restriction frame for municipal roads according to claim 4, characterized in that, The horizontal plate (4) and the reinforcing tube (5) are provided with through holes (10) for the screw (8) to slide.

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