Suspension type energy dissipation and height limiting device and energy dissipation and height limiting frame

Abstract

The utility model relates to a suspension type energy dissipation and height limiting device and an energy dissipation and height limiting frame. The suspension type energy dissipation height limiting device is installed on a cross beam and comprises a flexible suspension rod, a reinforced T-shaped height limiting rod and an energy dissipation component. The reinforced T-shaped height limiting rod comprises a horizontal cross rod located in the front and further comprises a vertical rod inclining from the front lower portion to the rear upper portion. The energy dissipation component is provided with a holding part for the vertical rod to penetrate through, and a friction plate tightly attached to the vertical rod is arranged in the holding part. The energy dissipation component is installed on the cross beam, and the cross rod is hung on the cross beam through the flexible hanging rod. The device is wide in applicability, limited vehicles can be effectively intercepted, and meanwhile damage to the limited vehicles can be reduced.

Description

Technical Field

[0001] The utility model relates to traffic facilities, in particular to a suspended energy dissipation height-limiting device and also to a suspended energy dissipation height-limiting frame. Background Art

[0002] To ensure the integrity and safety of transportation infrastructure such as roads, bridges, tunnels and culverts, traffic management departments have implemented a series of restrictions and set up height limit frames for specific sections or areas. These height limit frames are set up to prevent over-height, large or overloaded vehicles from passing through, reduce damage to infrastructure, and improve driving safety. This measure helps protect road structures, extend their service life, and provide a safer travel environment for traffic participants.

[0003] Most of the existing height limit frames adopt a simple integrated design, such as a fixed gantry steel frame or a truss structure. Once a collision with a large or height-limited vehicle occurs, there is a risk of vehicle damage or height limit frame collapse.

[0004] Some existing height-limited bridges also use an energy dissipation solution of setting a weak point at the midpoint of the beam. Once the road is wider, such as more than 4 lanes, the weak point is easily affected by gravity and is easily ineffective, making it impossible to intercept overheight vehicles. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide a suspended energy dissipation height limit device and an energy dissipation height limit frame which can effectively intercept restricted vehicles and reduce damage to the vehicles.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A suspended energy dissipation height-limiting device is installed on a crossbeam, and comprises a flexible suspension rod, a reinforced T-shaped height-limiting rod, and an energy dissipation component; the reinforced T-shaped height-limiting rod comprises a horizontally arranged crossbeam located in the front, and also comprises a vertical rod inclined from the front lower part to the rear upper part; the energy dissipation component is provided with a gripping portion for the vertical rod to pass through, and a friction plate tightly attached to the vertical rod is arranged in the gripping portion; the energy dissipation component is installed on the crossbeam, and the crossbeam is suspended on the crossbeam through the flexible suspension rod.

[0008] As a preferred embodiment, the energy dissipation component comprises a cross beam connector, a main body, and a cover body which are arranged in sequence, wherein the cross beam connector is used to be connected to the cross beam; and a ring-shaped gripping portion is formed between the main body and the cover body.

[0009] As a preferred embodiment, in the cover body, an inner side wall of the gripping portion is provided with an arc-shaped groove, the length direction of the arc-shaped groove is arranged along the axial direction of the gripping portion, and the friction plate is embedded in the arc-shaped groove.

[0010] As a preferred embodiment, a cylindrical groove is provided at the bottom of the arc-shaped groove, the length direction of the cylindrical groove is arranged along the axial direction of the gripping part, and a cylindrical gasket is embedded in the cylindrical groove; the cover body is provided with a threaded hole for the tightening bolt to be screwed in, and the end of the tightening bolt, the cylindrical gasket and the friction plate are tightened in sequence.

[0011] As a preferred embodiment, the cover body includes an arc-shaped holding section forming a holding portion, and also includes mounting sections located on the left and right sides of the arc-shaped holding section. The cover body is snapped onto the end of the main body, and the flange bolts pass through the mounting section and are screwed into the main body, thereby connecting the cover body and the main body.

[0012] As a preferred embodiment, an axially arranged limit strip is provided on the outer side of the vertical rod, and an axially arranged limit groove is provided on the inner side wall of the gripping portion, the limit strip is inserted into the limit groove and slides axially along the limit groove; an annular stopper for limiting the lower limit position of the vertical rod is installed on the upper part of the vertical rod, and when the vertical rod is at the lower limit position, the annular stopper rests on the energy dissipation component.

[0013] As a preferred embodiment, in the reinforced T-shaped height limiting rod, both sides of the vertical rod and both sides of the horizontal rod are connected by diagonal rods.

[0014] As a preferred embodiment, a rubber energy dissipation gasket is provided on the front side of the reinforced T-shaped height limit rod.

[0015] A suspended energy dissipation height limit frame comprises a crossbeam, a column for erecting the crossbeam, and a suspended energy dissipation height limit device; when the suspended energy dissipation height limit device is installed on the crossbeam, the flexible suspension rod is in a vertical state, and the angle between the reinforced T-shaped height limit rod and the horizontal plane is less than 30 degrees.

[0016] As a preferred embodiment, the crossbeam is a truss structure; the suspended energy dissipation height limiting device is arranged in a one-to-one correspondence with the one-way lane, and the suspended energy dissipation height limiting device is arranged in the left and right center position corresponding to the one-way lane.

[0017] The principle of the utility model is that the restricted vehicle can be effectively intercepted through the high-energy consumption friction energy dissipation structure design, and the enhanced T-shaped height-limiting rod oblique translation structure is adopted to reduce the damage to the vehicle.

[0018] The utility model has the following advantages:

[0019] 1. It has wide applicability and can effectively intercept restricted vehicles while reducing damage to restricted vehicles.

[0020] 2. After the reinforced T-shaped height limit rod is hit, the vertical rod and the energy dissipation component dissipate energy through friction, which will only wear the friction plate, making replacement and maintenance more convenient.

[0021] 3. A structure is provided to adjust the pressure between the friction plate and the vertical rod, thereby adjusting the magnitude of the friction force.

[0022] 4. Set limit strips and limit grooves to ensure that the vertical rod does not rotate circumferentially but only translates axially.

[0023] 5. An annular stopper is provided to limit and strengthen the lower limit position of the T-shaped height limit rod to prevent the end of the vertical rod from escaping from the gripping portion.

[0024] 6. Set up a slash to strengthen the strength of the T-shaped height limit rod.

[0025] 7. Install rubber energy dissipation pads to reduce the rigid impact between the car and the crossbar.

[0026] 8. The crossbeam is a truss structure, which can reduce the weight of the crossbeam, especially when it crosses multiple lanes, to reduce the impact of gravity. At the same time, the truss structure, that is, the front and rear ends of the crossbeam have a sufficient distance to ensure that the angle between the vertical rod of the reinforced T-shaped height limit rod and the horizontal plane is less than 30 degrees, so that it can more stably consume the impact force of the vehicle through friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of a suspended energy dissipation height-limiting frame.

[0028] Figure 2 It is a partial enlarged view of a suspended energy dissipation and height limiting device.

[0029] Figure 3 It is a structural schematic diagram of the cover body.

[0030] In the figure, 1 is a flexible hanger, 2 is a reinforced T-shaped height limit rod, 3 is an energy dissipation component, 4 is a beam, and 5 is a column.

[0031] 201 is a horizontal rod, 202 is a vertical rod, 203 is an oblique rod, 204 is a rubber energy dissipation gasket, 205 is a limit strip, and 206 is an annular stopper.

[0032] 301 is a crossbeam connector, 302 is a main body, 303 is a cover, 304 is a friction plate, 305 is a columnar gasket, 306 is a tension bolt, 307 is a limiting groove, 308 is a flange bolt, and 309 is a connecting bolt.

[0033] 501 is a connector. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with specific implementation methods.

[0035] Embodiment 1

[0036] A suspended energy dissipation height-limiting device is installed on a crossbeam, and includes a flexible suspension rod, a reinforced T-shaped height-limiting rod, and an energy dissipation component; the reinforced T-shaped height-limiting rod includes a horizontally arranged crossbeam located in the front, and also includes a vertical rod inclined from the front lower to the rear upper; the energy dissipation component is provided with a gripping portion for the vertical rod to pass through, and a friction plate tightly attached to the vertical rod is provided in the gripping portion; the energy dissipation component is installed on the crossbeam, and the crossbeam is suspended on the crossbeam through the flexible suspension rod. In this embodiment, the end of the vertical rod of the reinforced T-shaped height-limiting rod is coaxially matched with the cylindrical gripping portion. There are two flexible suspension rods, which are symmetrically arranged on the left and right. The length and position of the flexible suspension rod are determined by the size and number of the reinforced T-shaped height-limiting rods.

[0037] The energy dissipation component includes a beam connector, a main body, and a cover body, which are arranged in sequence. The beam connector is used to connect with the beam; and a ring-shaped gripping portion is formed between the main body and the cover body. In this embodiment, the beam connector is a semicircular ring, which is fixed by connecting bolts after being sleeved on the round rod of the beam.

[0038] In the cover body, an arc-shaped groove is provided on the inner side wall of the gripping portion, the length direction of the arc-shaped groove is arranged along the axial direction of the gripping portion, and the friction plate is embedded in the arc-shaped groove. In this embodiment, the length direction of the friction plate is arranged along the axial direction, and a sufficient length is required to ensure sufficient friction. The number of the arc-shaped groove and the number of the friction plate are two, and they are arranged symmetrically on the left and right.

[0039] The bottom of the arc groove is provided with a cylindrical groove, the length direction of which is arranged along the axial direction of the gripping part, and a cylindrical gasket is embedded in the cylindrical groove; the cover body is provided with a threaded hole for the tension bolt to be screwed in, and the end of the tension bolt, the cylindrical gasket, and the friction plate are tightened in sequence. By adjusting the tension bolt, the pressure between the friction plate and the vertical rod can be adjusted, thereby adjusting the friction resistance.

[0040] The cover body includes an arc-shaped holding section forming a holding portion, and also includes installation sections located on the left and right sides of the arc-shaped holding section. The cover body is buckled on the end of the main body, and the flange bolts pass through the installation section and are screwed into the main body, thereby connecting the cover body and the main body.

[0041] The outer side of the vertical rod is provided with an axially arranged limit strip, and the inner side wall of the gripping portion is provided with an axially arranged limit groove, the limit strip is inserted into the limit groove and slides axially along the limit groove; the upper part of the vertical rod is installed with an annular stopper for limiting the lower limit position of the vertical rod, and when the vertical rod is at the lower limit position, which is also the initial state, the annular stopper rests on the energy dissipation component. In this embodiment, the limit strip is rectangular, and there are two of them, which are located on the upper and lower sides of the vertical rod. Correspondingly, there are also two limit grooves, which are located on the upper and lower sides of the inner wall of the gripping portion.

[0042] In the reinforced T-shaped height limit rod, both sides of the vertical rod and both sides of the horizontal rod are connected by diagonal rods, and the connection method is welding to enhance the strength.

[0043] The front side of the reinforced T-shaped height limiting rod is provided with a rubber energy dissipation pad. In the present embodiment, rubber energy dissipation blocks are installed on both sides and the middle of the cross bar.

[0044] When a vehicle hits the reinforced T-shaped height limit bar, the impact will have a warning effect on the vehicle. At the same time, the vertical bar of the reinforced T-shaped height limit bar, under the guidance of the rectangular limit bar, continuously absorbs the impact force of the vehicle through friction with the energy dissipation component, causing the friction plate to wear, and then only the friction plate needs to be replaced, which saves maintenance and replacement costs to the maximum extent.

[0045] Embodiment 2

[0046] A suspended energy dissipation height limit frame is installed in roads, tunnels, culverts and other areas that need to be protected or in traffic safety management areas. The location where the height limit frame needs to be installed is selected according to the on-site conditions; the height limit frame adopts a suspended energy dissipation structure, which can reduce the maximum impact force of the restricted vehicle and play a role in intercepting overheight vehicles. The height and width of the beam and the size of the reinforced T-shaped height limit rod can be adjusted according to the needs of the site.

[0047] A suspended energy dissipation height limit frame comprises a crossbeam, a column for erecting the crossbeam, and two sets of suspended energy dissipation height limit devices of embodiment one; when the suspended energy dissipation height limit device is installed on the crossbeam, the flexible suspension rod is in a vertical state, which is an initial state, and the angle between the reinforced T-shaped height limit rod and the horizontal plane is less than 30 degrees, which is 25 degrees in this embodiment.

[0048] The crossbeam is a truss structure; the suspended energy dissipation height limit device is set one by one with the one-way lane, and the suspended energy dissipation height limit device is set in the left and right center position of the one-way lane. The truss structure means that there is enough distance between the front and rear ends of the crossbeam to ensure that the angle between the vertical rod of the reinforced T-shaped height limit rod and the horizontal plane is less than 30 degrees, so that it can more stably consume the impact force of the vehicle through friction.

[0049] In addition to the above-mentioned embodiments, the number of suspended energy dissipation and height limiting devices can be determined by the number of lanes and other numbers can be used. The gripping portion can be composed of two clamping blocks. The friction plate can be a common structure arranged in the gripping portion without a structure for adjusting the friction force. These changes are all within the scope of protection of the present utility model.

[0050] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A suspended energy dissipation height limiting device, installed on a beam, characterized in that: It includes a flexible suspension rod, a reinforced T-shaped height limit rod, and an energy dissipation component; the reinforced T-shaped height limit rod includes a horizontally arranged cross bar located in the front, and also includes a vertical bar inclined from the front lower part to the rear upper part; the energy dissipation component is provided with a gripping portion for the vertical bar to pass through, and a friction plate tightly attached to the vertical bar is arranged in the gripping portion; the energy dissipation component is installed on the cross beam, and the cross bar is suspended on the cross beam through the flexible suspension rod.

2. A suspended energy dissipation height limiting device according to claim 1, characterized in that: The energy dissipation component comprises a crossbeam connector, a main body and a cover body which are arranged in sequence, wherein the crossbeam connector is used to be connected with the crossbeam; and a ring-shaped gripping portion is formed between the main body and the cover body.

3. A suspended energy dissipation height limiting device according to claim 2, characterized in that: In the cover body, an inner side wall of the gripping portion is provided with an arc-shaped groove, the length direction of the arc-shaped groove is arranged along the axial direction of the gripping portion, and the friction plate is embedded in the arc-shaped groove.

4. A suspended energy dissipation height limiting device according to claim 3, characterized in that: A cylindrical groove is provided at the bottom of the arc-shaped groove, the length direction of which is arranged along the axial direction of the gripping portion, and a cylindrical gasket is embedded in the cylindrical groove; the cover body is provided with a threaded hole for screwing a tension bolt into, and the end of the tension bolt, the cylindrical gasket and the friction plate are tightened in sequence.

5. A suspended energy dissipation height limiting device according to claim 2, characterized in that: The cover body includes an arc-shaped holding section forming a holding portion, and also includes installation sections located on the left and right sides of the arc-shaped holding section. The cover body is buckled on the end of the main body, and the flange bolts pass through the installation section and are screwed into the main body, thereby connecting the cover body and the main body.

6. A suspended energy dissipation height limiting device according to claim 1, characterized in that: An axially arranged limit strip is provided on the outer side of the vertical rod, and an axially arranged limit groove is provided on the inner side wall of the grip portion. The limit strip is inserted into the limit groove and slides axially along the limit groove. An annular stopper for limiting the lower limit position of the vertical rod is installed on the upper part of the vertical rod. When the vertical rod is at the lower limit position, the annular stopper rests on the energy dissipation component.

7. A suspended energy dissipation height limiting device according to claim 1, characterized in that: In the reinforced T-shaped height limit rod, both sides of the vertical rod and both sides of the horizontal rod are connected by diagonal rods.

8. A suspended energy dissipation height limiting device according to claim 1, characterized in that: A rubber energy dissipation gasket is provided on the front side of the reinforced T-shaped height limit rod.

9. A suspended energy dissipation height limit frame, characterized in that: It comprises a crossbeam, a column for erecting the crossbeam, and a suspended energy dissipation height-limiting device as described in any one of claims 1 to 8; when the suspended energy dissipation height-limiting device is installed on the crossbeam, the flexible suspension rod is in a vertical state, and the angle between the reinforced T-shaped height-limiting rod and the horizontal plane is less than 30 degrees.

10. A suspended energy dissipation height-limiting frame according to claim 9, characterized in that: The crossbeam is a truss structure; the suspended energy dissipation height limiting device is arranged in one-to-one correspondence with the one-way lane, and the suspended energy dissipation height limiting device is arranged in the left and right center position corresponding to the one-way lane.

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