Height limiting frame

Abstract

The utility model discloses a height limiting frame which comprises a stand column, a cross beam and a connecting bolt, the stand column is used for being installed on the ground, the cross beam is arranged above the stand column, the cross beam is placed on the stand column, a first groove is formed in the connecting bolt, the cross beam and the stand column are connected through the connecting bolt, and the cross beam is connected with the stand column through the first groove. The first groove is formed between the cross beam and the stand column. When a vehicle collides with a cross beam on the height limiting frame, a breakpoint can be effectively controlled to be located at the first groove of the connecting bolt, so that damage to the cross beam and a stand column is reduced.

Description

Technical Field

[0001] The utility model relates to the field of road facilities, in particular to a height-limiting frame. Background Art

[0002] The height limit frame in the road is to limit the height of vehicles to ensure that vehicles that are too high cannot pass through, thereby avoiding traffic accidents and damage to bridges or other facilities. These height limit frames are usually used in places such as underground passages, overpasses, and bridges, which can help ensure the safety and smoothness of road traffic.

[0003] In the prior art, a height limit display board is usually set on the height limit frame. However, there are still drivers driving overheight vehicles that drive into the height limit lane, causing damage to the height limit frame. When the height limit frame is damaged, the columns and beams in the height limit frame in the prior art will be damaged to varying degrees and need to be replaced. Replacing the beams and columns is time-consuming and laborious. In addition, it takes a long time to repair the columns and beams. Utility Model Content

[0004] The technical problem to be solved by the utility model is to solve at least one of the technical problems mentioned above.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A height limiting frame includes a column, a beam and connecting bolts, wherein the column is used to be installed on the ground, the beam is arranged above the column, the beam is placed on the column, a first groove is provided on the connecting bolt, the beam and the column are connected by the connecting bolt, and the first groove is arranged between the beam and the column.

[0007] As a further improvement of the above technical solution, a first sinker is provided on the bottom surface of the beam, a first connecting hole penetrating the beam is opened on the bottom surface of the first sinker, a second connecting hole is provided on the column, the connecting bolts are inserted into the first connecting hole and the second connecting hole, and the first groove is arranged in the first sinker.

[0008] As a further improvement of the above technical solution, a second sinker is provided on the top surface of the beam, the first connecting hole connects the first sinker and the second sinker, the head of the connecting bolt is arranged in the second sinker, and a gap is provided between the head of the connecting bolt and the inner wall of the second sinker.

[0009] As a further improvement of the above technical solution, the column includes a hollow column and a connecting plate fixed on the top of the hollow column, a vertical channel is formed in the hollow column, the connecting plate covers the upper end of the channel, and the second connecting hole is opened on the connecting plate.

[0010] As a further improvement of the above technical solution, the length of the first connecting hole extends along the length direction of the crossbeam, and one side of the first connecting hole extends to the end surface of the crossbeam.

[0011] As a further improvement of the above technical solution, two columns are provided, and the two columns are arranged at intervals. The crossbeam is provided on the top of the two columns. Two of the first connecting hole, the second connecting hole, the first sinker and the second sinker are provided respectively. The first connecting hole, the second connecting hole, the first sinker and the second sinker are respectively arranged in one-to-one correspondence, and the two first connecting holes extend to the end face of the crossbeam back to back.

[0012] As a further improvement of the above technical solution, the height limit frame also includes a sleeve and a nut, the lower end of the rod of the connecting bolt passes through the sleeve, the sleeve and the rod of the bolt can be relatively slidably connected, the nut is arranged below the sleeve, and the bolt and the nut are connected by threaded cooperation.

[0013] As a further improvement of the above technical solution, the first groove is arranged around the side surface of the connecting bolt.

[0014] As a further improvement of the above technical solution, the height limiting frame also includes a height limiting plate and a height limiting chain, one end of the height limiting chain is fixed on the crossbeam, the other end of the height limiting chain is fixedly connected to the height limiting plate, and the height limiting plate is arranged below the crossbeam.

[0015] As a further improvement of the above technical solution, a plurality of height limiting plates are provided, a plurality of height limiting chains are provided, and each of the height limiting plates is connected to the crossbeam via two of the height limiting chains.

[0016] As a further improvement of the above technical solution, a protruding block is provided on the inner wall of the second sinking platform, and the protruding block is inserted into the first groove, and the protruding block is used to abut against the first groove.

[0017] The beneficial effect of the utility model is that when the height limit frame is hit by an accidental impact, since the first groove is provided on the connecting bolt, the first groove can form a predetermined "break point". This means that when the impact force reaches a certain level, the bolt will break preferentially at this groove, thereby reducing the impact force directly on the beam and the column, and further reducing their degree of damage. By designing the first groove as a "break point", it can be ensured that when a collision occurs, the break occurs at a preset, relatively weak position of the structure, rather than at the key stress-bearing part of the beam or the column. In this way, even if the height limit frame is hit, its overall structure can be kept relatively stable, thereby enhancing the safety of the entire height limit frame. Since the break occurs at the first groove of the connecting bolt, this makes maintenance and replacement work simpler and more efficient. The staff only needs to replace the broken bolt, without overhauling or replacing the entire beam or column, which greatly saves maintenance costs and time. By reducing the damage to the beam and the column in the collision, this design can extend the service life of the height limit frame. Because critical stress-bearing components are better protected, they can maintain stable performance for longer periods of time, reducing the inconvenience and cost of frequent repairs or replacements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0019] Figure 1 It is a side view of the height limit frame of the utility model, in which the height limit plate and the height limit chain are hidden;

[0020] Figure 2 The utility model Figure 1 Axonometric section view at AA in the figure;

[0021] Figure 3 It is an axonometric diagram of the height limit frame of the utility model, in which the height limit plate and the height limit chain are hidden;

[0022] Figure 4 The utility model Figure 3 An enlarged view of point I in FIG.

[0023] Figure 5 It is a front schematic diagram of the height limiting frame of the utility model.

[0024] In the accompanying drawings: 1-crossbeam, 11-first sinker, 12-second sinker, 13-height limiting chain, 14-height limiting plate, 21-hollow column, 22-connecting plate, 3-connecting bolt, 31-first groove, 4-nut, 5-sleeve, 6-protruding block. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connecting accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0026] Reference Figures 1 to 5 A height limiting frame includes a column, a beam 1 and a connecting bolt 3, wherein the column is used to be installed on the ground, the beam 1 is arranged above the column, the beam 1 is placed on the column, a first groove 31 is provided on the connecting bolt 3, the beam 1 and the column are connected by the connecting bolt 3, and the first groove 31 is arranged between the beam 1 and the column.

[0027] As can be seen from the above, when the height limit frame is hit by an accidental impact, since the first groove 31 is provided on the connecting bolt 3, the first groove 31 can form a predetermined "break point". This means that when the impact force reaches a certain level, the bolt will break preferentially at this groove, thereby reducing the impact force directly on the beam 1 and the column, thereby reducing their degree of damage. By designing the first groove 31 as a "break point", it can be ensured that when a collision occurs, the break occurs at a preset, relatively weak position of the structure, rather than at the key stress-bearing part of the beam 1 or the column. In this way, even if the height limit frame is hit, its overall structure can be kept relatively stable, thereby enhancing the safety of the entire height limit frame. Since the break occurs at the first groove 31 of the connecting bolt 3, this makes maintenance and replacement work simpler and more efficient. The staff only needs to replace the broken bolt, without overhauling or replacing the entire beam 1 or the column, which greatly saves maintenance costs and time. By reducing the damage to the beam 1 and the column in the collision, this design can extend the service life of the height limit frame. Because critical stress-bearing components are better protected, they can maintain stable performance for longer periods of time, reducing the inconvenience and cost of frequent repairs or replacements.

[0028] In some embodiments, a first sink 11 is provided on the bottom surface of the crossbeam 1, a first connection hole penetrating the crossbeam 1 is provided on the bottom surface of the first sink 11, a second connection hole is provided on the column, the connection bolt 3 is inserted in the first connection hole and the second connection hole, and the first groove 31 is provided in the first sink 11. In actual use, the first groove 31 is provided in the first sink 11, and there is a gap between the inner wall of the first sink 11 and the first groove 31, so that the connection bolt 3 has no support at the first groove 31. When the crossbeam 1 is hit by a vehicle, due to the design of the first groove 31 on the connection bolt 3, the impact force will cause the connection bolt 3 to break at the first groove 31, thereby avoiding direct breakage of the crossbeam 1 or damage to the column.

[0029] In addition, a protruding block 6 is provided on the inner wall of the second sink 12, and the protruding block 6 is inserted into the first groove 31. The protruding block 6 is used to abut against the first groove 31. When the vehicle hits the cross beam 1, the protruding block 6 abuts against the first groove 31, thereby forming a stress concentration in the first groove 31. Preferably, the protruding block 6 can be used as a blade, which can be used to cut into the first groove 31 to form a stress concentration, so that when the cross beam 1 is hit, the breaking point is located at the first groove 31 of the connecting bolt 3.

[0030] In some embodiments, a second sink 12 is provided on the top surface of the crossbeam 1, the first connecting hole connects the first sink 11 and the second sink 12, the head of the connecting bolt 3 is arranged in the second sink 12, and a gap is provided between the head of the connecting bolt 3 and the inner wall of the second sink 12. The second sink 12 is provided on the top surface of the crossbeam 1, which can facilitate the installer to preliminarily locate the installation position of the connecting bolt 3 when installing the crossbeam 1 and the column. In addition, there is a gap between the head of the connecting bolt 3 and the inner wall of the second sink 12, so that after the crossbeam 1 is hit by a vehicle, the gap between the head of the connecting bolt 3 and the second sink 12 can be used as a space reserved for a certain deformation of the head of the connecting bolt 3.

[0031] In some embodiments, the column includes a hollow column 21 and a connecting plate 22 fixed on the top of the hollow column 21, a vertical channel is formed in the hollow column 21, the connecting plate 22 covers the upper end of the channel, and the second connecting hole is provided on the connecting plate 22. This structure is simple and convenient to set up. The second connecting hole is provided on the connecting plate 22, so that the crossbeam 1 is connected to the connecting plate 22 through the connecting bolts 3, and the crossbeam 1 and the hollow column 21 are indirectly connected.

[0032] In actual use, the hollow column 21 and the connecting plate 22 are connected by screws or welding, so that the connecting plate 22 is fixed on the hollow column 21 .

[0033] In some embodiments, the length of the first connection hole extends along the length direction of the beam 1, and one side of the first connection hole extends to the end surface of the beam 1. Extending the length of the second connection hole along the length direction of the beam 1 can facilitate the installation between the beam 1 and the column.

[0034] In some embodiments, two columns are provided, and the two columns are spaced apart. The crossbeam 1 is provided on the top of the two columns. Two first connection holes, two second connection holes, two first sinkers 11, and two second sinkers 12 are provided respectively. The first connection holes, the second connection holes, the first sinkers 11, and the second sinkers 12 are respectively provided in one-to-one correspondence. The two first connection holes extend to the end face of the crossbeam 1 in opposite directions. In actual use, the two columns are provided on both sides of the road, so that the crossbeam 1 spans above the road. The two first connection holes extend to the end faces of the crossbeam 1 in opposite directions, so that the connection bolts 3 inserted in the two first connection holes can limit the crossbeam 1 and facilitate the installation of the connection bolts 3.

[0035] In some embodiments, the height limit frame further includes a sleeve 5 and a nut 4, the lower end of the rod of the connecting bolt 3 passes through the sleeve 5, the sleeve 5 and the rod of the bolt can be relatively slidably matched and connected, the nut 4 is arranged below the sleeve 5, and the bolt and the nut 4 are connected by threaded matching. The sleeve 5 and the rod of the bolt can be relatively slidably matched, and the arrangement of the sleeve 5 can improve the strength of the rod of the bolt to accurately control the "breakpoint" at the first groove.

[0036] The connecting bolt 3 includes a bolt head and a bolt shank, and the bolt head and the bolt shank are fixedly connected. The first groove 31 is arranged at the bolt shank. The bolt shank is provided with a thread, and the nut 4 and the bolt shank are connected by threaded matching. The bolt head is used to match with a screwdriver to facilitate tightening of the bolt.

[0037] In some embodiments, the first groove 31 is arranged around the side of the connecting bolt 3. This structure is simple and convenient to arrange. Through the arrangement of this structure, the strength of the connecting bolt 3 at the first groove 31 can be effectively increased. Thus, the breaking point of the connecting bolt 3 is controlled to be located at the first groove 31.

[0038] In some embodiments, the height limit frame further includes a height limit plate 14 and a height limit chain 13, one end of the height limit chain 13 is fixed to the cross beam 1, and the other end of the height limit chain 13 is fixedly connected to the height limit plate 14, and the height limit plate 14 is arranged below the cross beam 1. When in use, the height limit plate 14 is located below the cross beam 1, and the two ends of the height limit chain 13 are respectively connected to the cross beam 1 and the height limit plate 14. Under the action of gravity, the height limit plate 14 is suspended by the height limit chain 13 and droops naturally, which can play a certain warning role.

[0039] In some embodiments, the height limiting plates 14 are provided in plurality, the height limiting chains 13 are provided in plurality, and each of the height limiting plates 14 is connected to the crossbeam 1 via two of the height limiting chains 13. This structure is simple and convenient to set up.

[0040] The working principle of the utility model is as follows: the height limit frame includes a column and a crossbeam 1, and the connecting bolt 3 is used to connect the column and the crossbeam 1. A first sink 11 is provided on the crossbeam 1, and a first groove 31 is provided on the connecting bolt 3, and the first groove 31 is arranged between the crossbeam 1 and the column. When the height limit frame is hit by an accident, since the first groove 31 is provided on the connecting bolt 3, the first groove 31 can form a predetermined "break point". This means that when the impact force reaches a certain level, the bolt will break preferentially at this groove, thereby reducing the impact force directly on the crossbeam 1 and the column, thereby reducing the degree of damage to them. By designing the first groove 31 as a "break point", it can be ensured that when a collision occurs, the break occurs at a preset, relatively weak position of the structure, rather than at the key stress-bearing part of the crossbeam 1 or the column. In this way, even if the height limit frame is hit, its overall structure can be kept relatively stable, thereby enhancing the safety of the entire height limit frame. Since the break occurs at the first groove 31 of the connecting bolt 3, this makes maintenance and replacement work simpler and more efficient. The staff only needs to replace the broken bolts without overhauling or replacing the entire beam 1 or column, which greatly saves maintenance costs.

[0041] The cross beam 1 and the column are connected by connecting bolts 3. This connection mode allows the connecting bolts 3 to act as a "breaking point" to withstand the impact force when impacted. In particular, by providing the first groove 31 on the connecting bolt 3, when impacted, the fracture is more likely to occur at the groove rather than at the key stress-bearing position of the cross beam 1 or the column.

[0042] A first sinking platform 11 is provided on the bottom surface of the cross beam 1, a first connection hole is provided on the bottom surface of the first sinking platform 11, and a second connection hole is provided on the column. The connecting bolt 3 connects the cross beam 1 and the column together through these holes. At the same time, a first groove 31 is provided in the first sinking platform 11. Such a design makes it easier for the connecting bolt 3 to break at the first groove 31 when a collision occurs.

[0043] A second sinking platform 12 is provided on the top surface of the cross beam 1, the first connecting hole connects the first sinking platform 11 and the second sinking platform 12, the head of the connecting bolt 3 is arranged in the second sinking platform 12, and a gap is provided between the head of the connecting bolt 3 and the inner wall of the second sinking platform 12. Such a design can provide a certain deformation space for the head of the connecting bolt 3 when a collision occurs.

[0044] The column is composed of a hollow column 21 and a connecting plate 22 fixed on the top. The connecting plate 22 extends in the transverse direction and has a second connecting hole. This design allows the crossbeam 1 to be connected to the connecting plate 22 through the connecting bolts 3, and is indirectly connected to the hollow column 21, thereby enhancing the stability of the structure.

[0045] The sleeve 5 and the rod of the connecting bolt 3 can be relatively slidably matched, and the nut 4 is arranged below the sleeve 5 and connected to the rod of the bolt by threaded matching. This design increases the strength of the bolt rod and controls the breaking position of the bolt to a certain extent.

[0046] The height limiting plate 14 is connected to the cross beam 1 through the height limiting chain 13 and is suspended below the cross beam 1. When an over-height vehicle attempts to pass, the height limiting plate 14 will first contact the vehicle to serve as a warning and blocking effect.

[0047] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A height-limiting frame, comprising a column and a beam (1), characterized in that: The height limiting frame further comprises a connecting bolt (3), the column is used to be installed on the ground, the crossbeam (1) is arranged above the column, the crossbeam (1) is placed on the column, a first groove (31) is provided on the connecting bolt (3), the crossbeam (1) and the column are connected via the connecting bolt (3), and the first groove (31) is arranged between the crossbeam (1) and the column.

2. The height-limiting frame according to claim 1, characterized in that: A first sink (11) is provided on the bottom surface of the crossbeam (1), a first connection hole penetrating the crossbeam (1) is provided on the bottom surface of the first sink (11), a second connection hole is provided on the column, the connection bolt (3) is inserted into the first connection hole and the second connection hole, and the first groove (31) is provided in the first sink (11).

3. The height-limiting frame according to claim 2, characterized in that: A second sunken platform (12) is provided on the top surface of the crossbeam (1), the first connecting hole connects the first sunken platform (11) and the second sunken platform (12), the head of the connecting bolt (3) is arranged in the second sunken platform (12), and a gap is provided between the head of the connecting bolt (3) and the inner wall of the second sunken platform (12).

4. The height-limiting frame according to claim 2, characterized in that: The column comprises a hollow column (21) and a connecting plate (22) fixed to the top of the hollow column (21), a vertical channel is formed in the hollow column (21), the connecting plate (22) covers the upper end of the channel, and the connecting plate (22) is provided with the second connecting hole.

5. The height-limiting frame according to claim 3, characterized in that: The length of the first connection hole extends along the length direction of the crossbeam (1), and one side of the first connection hole extends to the end surface of the crossbeam (1).

6. The height-limiting frame according to claim 5, characterized in that: Two upright columns are provided, and the two upright columns are arranged at intervals. The crossbeam (1) is provided on the tops of the two upright columns. Two first connection holes, two second connection holes, two first sinking platforms (11), and two second sinking platforms (12) are provided respectively. The first connection holes, the second connection holes, the first sinking platforms (11), and the second sinking platforms (12) are respectively arranged in a one-to-one correspondence, and the two first connection holes extend to the end surface of the crossbeam (1) in opposite directions from each other.

7. The height-limiting frame according to claim 4, characterized in that: The height limiting frame further comprises a sleeve (5) and a nut (4); the lower end of the rod of the connecting bolt (3) passes through the sleeve (5); the sleeve (5) and the rod of the bolt are relatively slidably connected; the nut (4) is arranged below the sleeve (5); and the bolt and the nut (4) are connected by threaded connection.

8. The height-limiting frame according to claim 1, characterized in that: The first groove (31) is arranged around the side surface of the connecting bolt (3).

9. The height-limiting frame according to claim 1, characterized in that: The height limiting frame also includes a height limiting plate (14) and a height limiting chain (13), one end of the height limiting chain (13) is fixed to the crossbeam (1), the other end of the height limiting chain (13) is fixedly connected to the height limiting plate (14), and the height limiting plate (14) is arranged below the crossbeam (1).

10. The height-limiting frame according to claim 6, characterized in that: A protruding block (6) is provided on the inner wall of the second sink (12); the protruding block (6) is inserted into the first groove (31); the protruding block (6) is used to abut against the first groove (31).

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