Flexible height-limiting portal frame

Abstract

The utility model relates to the field of traffic equipment, in particular to a flexible height-limiting portal frame. The flexible height-limiting portal frame comprises two stand columns, an arresting cable connected between the two stand columns and an energy dissipation device connecting the stand columns with the ground, the arresting cable is wrapped by an energy dissipation and shock absorption layer, the two ends of the arresting cable bypass the two stand columns respectively and are folded with an arresting cable body, and the two ends of the arresting cable are connected with the energy dissipation device. And the folded part of the arresting cable is clamped and fixed through a plurality of rope clamps. The flexible height-limiting portal frame has good shock absorption and energy dissipation effects, damage caused after the flexible height-limiting portal frame collides with a vehicle is small, the safety of all facilities and surrounding personnel is guaranteed, meanwhile, disassembly and adjustment are convenient, and the flexible height-limiting portal frame can adapt to height-limiting scenes of roads with different widths.

Description

Technical Field

[0001] The embodiments of the present specification relate to the field of transportation equipment, and in particular to a flexible height-limited gantry. Background Art

[0002] The height limit gantry is used to limit the height of passing vehicles to prevent over-height vehicles from causing potential damage to structures, thereby ensuring the safety and integrity of traffic facilities and protecting the safety of personnel and vehicles. Existing height limit gantry is mainly composed of rigid materials, and the structure is strong and stable. However, when the height of the vehicle exceeds the height limit requirement and collides with the height limit gantry, due to the influence of factors such as the rigid structure and vehicle inertia, it is easy to cause great damage to the vehicle, the height limit gantry and surrounding facilities. In serious cases, it may cause traffic accidents and threaten the life safety of the driver and surrounding personnel. At the same time, the rigid height limit gantry is not easy to flexibly adjust the height limit width, height and other factors according to road conditions, and it is inconvenient to disassemble and use.

[0003] The existing height limiting device with flexible buffering function, the height limiting part is mainly composed of height limiting rods, height limiting beams, etc., the buffering effect during collision is limited, and the fixing method with other components is relatively firm, and it is easy to cause serious damage when facing extreme impact force. Utility Model Content

[0004] The embodiments of the present specification provide a flexible height-limited gantry, which is intended to solve one or more of the above-mentioned problems and other potential problems.

[0005] In order to achieve the above objectives, the following technical solutions are provided:

[0006] The present specification provides a flexible height-limiting gantry, comprising two columns, an arresting cable connected between the two columns, and an energy dissipation device connecting the columns to the ground, wherein the arresting cable is coated with an energy dissipation and shock-absorbing layer, and both ends of the arresting cable are respectively passed around the two columns and folded with the arresting cable body, and the folded part of the arresting cable is clamped and fixed by a plurality of rope clamps.

[0007] The flexible height limiting gantry of the disclosed embodiment uses arresting cables instead of existing crossbeams to limit the height of communication vehicles, can flexibly adapt to the height limit requirements of roads of different widths, has low cost, and is easy to disassemble and maintain. The height limiting gantry has high operating efficiency. While reducing the impact force of the vehicle and the damage to the vehicle and the height limiting gantry, the arresting cables can also automatically fall off in the face of extreme impact forces, thereby avoiding serious damage to the vehicle and the height limiting gantry and reducing safety accidents.

[0008] In some embodiments, the column is provided with a wire groove for bypassing the arresting cable.

[0009] In some embodiments, the cable trough includes a cable inlet, a cable outlet, and a cable trough body, the side opening of the cable trough body is smaller than the diameter of the arresting cable, and the arresting cable passes in and out from the cable inlet and the cable outlet.

[0010] In some embodiments, a detachable buckle is provided at one end of the arresting cable, and the size of the buckle is larger than the size of the outlet.

[0011] In some embodiments, a warning bell is provided on the arresting cable.

[0012] In some embodiments, a reflective warning strip is provided on the arresting cable.

[0013] In some embodiments, a crossbeam perpendicular to the column is provided at the top of the column, and a warning sign is provided on the crossbeam.

[0014] In some embodiments, the energy dissipation device is a damping spring shock absorber.

[0015] In some embodiments, the upper support plate of the damping spring shock absorber is bolted to the bottom of the column, and the lower support plate of the damping spring shock absorber is connected to the ground through a sliding base. The sliding base is fixed on the ground, and the lower support plate can slide along the track on the sliding base, and the direction of the track is parallel to the direction of the road.

[0016] In some embodiments, the sliding base is provided with flexible devices on both sides of the lower supporting plate, and the flexible devices fix the lower supporting plate at the middle position of the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the embodiments of the present specification will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present specification are shown by way of example and not limitation.

[0018] Figure 1 A schematic structural diagram of a flexible height-limited door frame according to an embodiment of the present specification is shown;

[0019] Figure 2 Shows Figure 1 Schematic diagram of the fixing of the middle arresting cable;

[0020] Figure 3 Shows Figure 2 Schematic diagram of the structure of the middle rope clamp.

[0021] 1-column, 2-arresting cable, 21-energy dissipation and shock absorption layer, 22-warning bell, 23-reflective warning strip, 3-damping spring shock absorber, 4-rope clamp, 41-U-bolt, 42-clamp seat, 43-nut, 5-crossbeam.

[0022] In the various drawings, the same or corresponding reference numerals represent the same or corresponding parts. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present specification will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present specification are shown in the accompanying drawings, it should be understood that the present specification can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present specification more thorough and complete, and to fully convey the scope of the present specification to those skilled in the art.

[0024] The term "including" and its variations used in this document represent open inclusion, that is, "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one other embodiment". Terms such as "upper", "lower", "front", and "rear" indicating placement or positional relationships are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the principles of this specification, and do not indicate or imply that the referred elements must have a specific orientation, be constructed or operate in a specific orientation, and therefore should not be understood as limitations on this specification.

[0025] A flexible height-limiting door frame according to an embodiment of the present specification is described in detail below with reference to the accompanying drawings. Figure 1 A structural schematic diagram of a flexible height-limiting gantry according to an embodiment of the present specification is shown. The flexible height-limiting gantry according to the embodiment of the present specification includes two columns 1, an arresting cable 2 connected between the two columns, and an energy dissipation device connecting the columns 1 to the ground. The arresting cable 2 is coated with an energy dissipation and shock absorption layer 21, and both ends of the arresting cable 2 are respectively passed around the two columns 1 and folded with the arresting cable 2 body, and the folded part of the arresting cable 2 is clamped and fixed by a plurality of rope clamps 4.

[0026] Among them, the length of the arresting cable 2 is greater than the distance between the two pillars 1. While reserving length for the folded part, it can also flexibly adapt to the different distance requirements between the two pillars 1, and further adapt to the height limit and communication requirements of roads of different widths. The energy dissipation and shock absorption layer 21 is an energy dissipation material with certain elasticity and impact resistance. When a vehicle contacts and collides with the energy dissipation and shock absorption layer 21, the energy dissipation material can quickly deform to absorb part of the impact force, thereby reducing the impact damage between the vehicle and the height limit gantry. The folded part of the arresting cable 2 is not wrapped with the energy dissipation and shock absorption layer 21. The energy dissipation and shock absorption layer 21 will increase the overall diameter of the arresting cable 2. After folding, the rope clamp 4 is difficult to fix and easy to loosen. The folded part is located at the edge and is not easy for the vehicle to contact. Therefore, the energy dissipation and shock absorption layer 21 is wrapped outside the middle part of the arresting cable 2 to reserve length for the folded part to avoid affecting the folding and clamping process of the two ends of the arresting cable 2. Figure 2 As shown, the number of rope clamps 4 required after the barrier cable 2 at one end is folded in half is about 3-4, and the more rope clamps 4 there are, the more firmly the barrier cable 2 is fixed. When the vehicle colliding with the barrier cable 2 is seriously speeding or overloaded, the impact force generated is too large, and the rope clamp 4 is broken, causing the barrier cable 2 to fall off the column 1, thereby avoiding serious damage to the vehicle, height limit gantry and surrounding facilities in extreme cases, and preventing the occurrence of safety accidents. In addition, the rope clamp 4 is easy to install and disassemble, with a low installation cost, and the use efficiency of the height limit gantry is high, which is convenient for the passage of vehicles in emergency situations. Specifically, as Figure 3 As shown, the rope clamp 4 is composed of a U-shaped bolt 41, a clamp seat 42 and a nut 43. When the nut 43 and the bolt 41 are tightened, the folded portion of the arresting cable 2 is clamped between the U-shaped bolt 41 and the clamp seat 42, thereby fixing the arresting cable 2. In order to increase the clamping force and reduce the wear on the arresting cable 2, a wear-resistant gasket can be added between the U-shaped bolt 41 and the clamp seat 42.

[0027] When the arresting cable 2 is wound around the column 1, it is easy for the arresting cable 2 to slip off the column 1 if it is only fixed by the rope clamp 4. Therefore, a wire groove for bypassing the arresting cable 2 is provided on the column 1 to fix the position of the arresting cable 2 wound around the column 1. There can be multiple wire grooves, which are respectively provided at different heights of the column 1 to achieve the fixation of the arresting cable 2 at different heights. Specifically, the wire groove includes an inlet, an outlet and a wire groove body. The side opening of the wire groove body is smaller than the diameter of the arresting cable 2. The arresting cable 2 passes in and out from the inlet and outlet. When the retaining cable 2 passes through the wire trough body, the side opening of the wire trough body is smaller than the diameter of the retaining cable 2, which further limits the position of the retaining cable 2, and the retaining cable 2 is not easy to slide off the column 1. The side opening facilitates observation of the state of the retaining cable 2 passing through the wire trough body. The positions of the wire inlet and the wire outlet limit the folding angle of the retaining cable 2, which is convenient for clamping the rope clamp 4.

[0028] A detachable buckle is provided at one end of the arresting cable 2, and the size of the buckle is larger than the size of the cable outlet. When in use, one end of the arresting cable 2 first passes through the cable inlet and the cable outlet in sequence, and then the detachable buckle is installed. When the rope clamp 4 breaks and the arresting cable 2 falls off, the detachable buckle restricts one end of the arresting cable 2 to the position of the cable outlet, preventing the arresting cable 2 from flying out under the impact force of the vehicle, damaging surrounding facilities and causing secondary damage, and also facilitating the recovery of the arresting cable 2 after it flies out.

[0029] In addition, the arresting cable 2 is provided with a warning bell 22 and a reflective warning strip 23. The warning bell 22 is used to warn the driver when the vehicle hits the arresting cable 2, and the reflective warning strip 23 is used to remind the driver of the position of the arresting cable 2 when driving at night, so that the driver can adjust the vehicle speed and position in time.

[0030] The top of the column 1 is provided with a crossbeam 5 which is perpendicular to the column 1, and a warning mark is provided on the crossbeam 5. The crossbeam 5 is located higher than the arresting cable 2 and is detachably connected to the column 1. The warning mark is a signboard with information such as height limit and speed limit.

[0031] Specifically, the energy dissipation device is a damping spring shock absorber 3. The damping spring shock absorber 3 has a strong load performance, can stably support the weight of the column 1, and has a low natural frequency and large damping. It is arranged at the bottom of the column 1. When the vehicle collides with the height-limiting gantry, it slows down its impact speed by absorbing and releasing elastic deformation, reduces the damage of the impact force to the height-limiting gantry and the vehicle, and well achieves the effect of shock absorption and energy dissipation. The upper support plate of the damping spring shock absorber 3 is bolted to the bottom of the column 1, and the lower support plate of the damping spring shock absorber 3 is connected to the ground through a sliding base. The sliding base is fixed on the ground, and the lower support plate can slide along the track on the sliding base, and the direction of the track is parallel to the direction of the road. Not only can the damping spring shock absorber 3 itself buffer and dissipate energy for vehicle collision, but it can also enable the column 1 to move within a certain range, further reducing damage to the vehicle and the height-limiting gantry. The sliding base is provided with flexible devices on both sides of the lower support plate, and the flexible devices fix the lower support plate at the middle position of the track. When the column 1 receives an impact force, it drives the lower support plate to escape from the flexible devices and then moves a distance forward or backward in the road direction. The flexible device is specifically a flexible fixing device composed of an elastic rubber layer, a flexible plate, etc.

[0032] Although several specific implementation details are included in the above discussion, these should not be interpreted as limiting the scope of this specification. Certain features described in the context of separate embodiments may also be implemented in a single implementation in combination. Conversely, various features described in the context of a single implementation may also be implemented in multiple implementations individually or in any suitable sub-combination.

[0033] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

[0034] The embodiments of the present specification have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A flexible height-limiting gantry, comprising two columns (1), an arresting cable (2) connected between the two columns, and an energy dissipation device connecting the columns (1) to the ground, characterized in that: The arresting cable (2) is coated with an energy dissipation and shock absorption layer (21), and the two ends of the arresting cable (2) are respectively passed around the two upright posts (1) and folded in half with the main body of the arresting cable (2), and the folded portion of the arresting cable (2) is clamped and fixed by a plurality of rope clamps (4).

2. A flexible height-limited gantry according to claim 1, characterized in that: The upright column (1) is provided with a wire groove for bypassing the arresting cable (2).

3. A flexible height-limited gantry according to claim 2, characterized in that: The wire trough comprises a wire inlet, a wire outlet and a wire trough body, the side opening of the wire trough body being smaller than the diameter of the arresting cable (2), and the arresting cable (2) passes in and out from the wire inlet and the wire outlet.

4. A flexible height-limited gantry according to claim 3, characterized in that: One end of the arresting cable (2) is provided with a detachable buckle, and the size of the buckle is larger than the size of the outlet.

5. The flexible height-limited gantry according to claim 2, characterized in that: The arresting cable (2) is provided with a warning bell (22).

6. A flexible height-limited gantry according to claim 5, characterized in that: A reflective warning strip (23) is provided on the arresting cable (2).

7. The flexible height-limited gantry according to claim 5, characterized in that: A crossbeam (5) perpendicular to the column (1) is provided at the top end of the column (1), and a warning mark is provided on the crossbeam (5).

8. The flexible height-limited gantry according to claim 1, characterized in that: The energy dissipation device is a damping spring shock absorber (3).

9. The flexible height-limited gantry according to claim 8, characterized in that: The upper support plate of the damping spring shock absorber (3) is bolted to the bottom of the column (1), and the lower support plate of the damping spring shock absorber (3) is connected to the ground via a sliding base, the sliding base is fixed on the ground, and the lower support plate can slide along a track on the sliding base, and the direction of the track is parallel to the direction of the road.

10. The flexible height-limited gantry according to claim 9, characterized in that: The sliding base is provided with flexible devices on both sides of the lower supporting plate, and the flexible devices fix the lower supporting plate at the middle position of the track.

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