Multistage buffering automatic reset height limiting frame
By designing a multi-stage buffer automatic reset elevated frame, using a rotatable buffer structure and automatic reset mechanism, the problem of insufficient buffering capacity of the existing elevated frame is solved, and stronger buffering capacity and lower maintenance costs are achieved.
Patent Information
- Application Number
- CN202510476966.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2025-06-20
AI Technical Summary
The existing limiting elevated frame has poor buffering capacity and cannot effectively deal with vehicles that exceed the height limit. The first-stage collision deformation adaptation mechanism can easily cause damage to the height limit rod after collision at a large speed.
A multi-stage buffer automatic reset limit elevated frame is designed, and a buffer structure including an extension, a first buffer part and a second buffer part is adopted. The buffer structure can rotate about the first horizontal axis and automatically reset after impact, absorbing different degrees of collision energy through the multi-stage buffering stage.
The buffering capacity of the elevated limiting frame is improved, the damage to the buffer structure is reduced by impact, automatic reset is achieved, the buffering needs for complex traffic conditions is met, and maintenance costs are reduced.
Smart Images
Figure CN120174754A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of traffic facilities, and particularly to a multi-stage buffer automatic reset height-limiting frame. Background Art
[0002] The height-limiting frame is an auxiliary tool for road traffic, used to prompt the limited height of the road for vehicles, and is widely applied to road conditions such as bridges, culverts, and tunnels. Most traditional height-limiting frames are of fixed structures. Once a vehicle exceeding the limit collides, the height-limiting pole undergoes plastic deformation, and both the repair period and repair cost are relatively high.
[0003] In the face of this problem, some domestic enterprises have proposed some optimization solutions, which can adapt to the over-limit collision at a relatively low speed and have a relatively limited automatic reset ability, such as the column rotation mechanism and the crossbeam rotation mechanism. However, both of the above two structures adopt a first-stage collision deformation adaptation mechanism. After a collision at a relatively high speed, there will still be a situation where the height-limiting pole is damaged due to overload. At the same time, the deformable height of the first-stage collision deformation adaptation mechanism is limited, and it cannot provide buffering for vehicles exceeding the height limit by a large margin, thus unable to meet the buffering requirements of the current complex traffic conditions. Summary of the Invention
[0004] The main object of the present invention is to propose a multi-stage buffer automatic reset height-limiting frame, aiming to solve the problem of poor buffering ability of the current height-limiting frame.
[0005] To achieve the above object, the present invention proposes a multi-stage buffer automatic reset height-limiting frame, comprising:
[0006] A frame, including a crossbeam extending along a first horizontal direction; and,
[0007] At least one buffer structure, including an extension part, a first buffer part, and a second buffer part. The extension part extends along the vertical direction, and one end thereof is suspended from the crossbeam, and the other end can swing around a first horizontal direction axis. The first buffer part includes a rotating member and a buffer member. The rotating member is rotatably installed at the other end of the extension part around the first horizontal direction axis. The buffer member protrudes from the rotating member along a second horizontal direction and is used to abut against a vehicle in the second horizontal direction. The second buffer part is arranged at the other end of the extension part. The size edge of the second buffer part in the vertical direction is higher than the size edge of the buffer member in the vertical direction, and the buffer member protrudes from the second buffer part in the second horizontal direction, so that the buffer member is always hit prior to the second buffer part.
[0008] In one embodiment, the extension part includes two extension rods, and the two extension rods are suspended from the crossbeam at intervals along the first horizontal direction through two hooks;
[0009] The second buffer part includes two first mounting seats and a limiting rod. The two first mounting seats are correspondingly arranged at the other ends of the two extension rods. The limiting rod is arranged between the two first mounting seats and is used to abut against the vehicle in the second horizontal direction.
[0010] The rotating member is rotatably mounted on the first mounting seat.
[0011] In one embodiment, the first mounting seat is detachably mounted at the end of the extension rod.
[0012] In one embodiment, one of the rotating member and the first mounting seat is provided with a rotating shaft, and the other is provided with a through hole that cooperates with the rotating shaft.
[0013] In one embodiment, the second buffer part further includes a buffer foam. The buffer foam is sleeved outside the limiting rod.
[0014] In one embodiment, the extension rod is provided as a spring.
[0015] In one embodiment, there are multiple buffer structures. The multiple buffer structures are suspended on the cross beam at intervals in the first horizontal direction.
[0016] The number of the buffer structures is set corresponding to the number of lanes of the road where they are located.
[0017] In one embodiment, the frame further includes multiple second mounting seats. The multiple second mounting seats are arranged on the cross beam at intervals in the first horizontal direction. Two through holes are provided on each second mounting seat for suspending two adjacent extension rods respectively located in two adjacent buffer structures.
[0018] In one embodiment, two buffer members are correspondingly arranged on one rotating member. The two buffer members are respectively arranged at two opposite side ends of the rotating member in the second direction and extend in opposite directions.
[0019] In one embodiment, the material of the buffer member includes steel.
[0020] In the technical solution of the present invention, by providing the extension part suspended on the cross beam and arranging the first buffer part and the second buffer part at the end of the extension part, the buffer structure can rotate around the axis in the first horizontal direction after being impacted, thereby improving the buffering capacity of the device, reducing the damage to the buffer structure caused by the impact. At the same time, the buffer structure after being impacted can reset under the action of its own gravity, meeting the requirement of automatic reset. Further, the first buffer part includes a rotating part and a buffer part. The rotating part is rotatably installed at the other end of the extension part, so that it can rotate around the axis in the first horizontal direction when the buffer part is impacted, thereby further improving the buffering capacity of the device. Furthermore, by providing the second buffer part, when the buffer part is impacted and swings to be in the same vertical plane as the second buffer part, the second buffer part and the buffer part jointly resist the impact object, thereby further improving the buffering capacity of the device. Specifically, the buffer structure in this solution will go through three stages in the complete impact process. In the first stage, the vehicle collides with the buffer part and drives the buffer part to swing to be in the same vertical plane as the second buffer part. In the second stage, the vehicle collides with the buffer part and the second buffer part and drives the buffer part and the second buffer part to swing to the top of the vehicle. In the third stage, the buffer part continuously rubs against the top of the vehicle, making a sound. Through the above three stages, different degrees of collision energy are absorbed, realizing multi-stage buffering of the vehicle. Thus, while achieving automatic reset, it ensures strong buffering capacity, reduces the damage to the device itself, and lowers the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0022] Figure 1 FIG. is a schematic structural diagram of an embodiment of a multi-stage buffer automatic reset height limit frame provided by the present invention;
[0023] Figure 2 is Figure 1 a schematic structural diagram of the buffer structure in;
[0024] Figure 3 is Figure 1 a partial cross-sectional view of the buffer structure in;
[0025] Figure 4 is Figure 1 a partial structural diagram of the buffer structure in.
[0026] Description of the attached reference numerals:
[0027] 100, multi-stage buffer automatic reset height limit frame; 1, frame; 11, cross beam; 12, column; 13, second mounting seat; 2, buffer structure; 21, extension part; 211, extension rod; 22, first buffer part; 221, rotating part; 222, buffer part; 23, second buffer part; 231, first mounting seat; 2311, rotating shaft; 232, limiting rod; 233, buffer foam.
[0028] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments
[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0031] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0032] The height limit frame is an auxiliary tool for road traffic, used to prompt the restricted height of the road for vehicles, and is widely used in road conditions such as bridges, culverts, and tunnels. Most traditional height limit frames are fixed structures. Once a vehicle exceeding the limit collides, the height limit pole undergoes plastic deformation, and both the repair period and the repair cost are relatively high.
[0033] Facing this problem, some domestic enterprises have proposed some optimization solutions, which can adapt to over-limit collisions at lower speeds and have a relatively limited automatic reset ability, such as the column rotation mechanism and the crossbeam rotation mechanism. However, both of the above two structures adopt a first-level collision deformation adaptation mechanism. After a collision at a relatively high speed, there will still be a situation where the height-limiting pole is overloaded and damaged. At the same time, the deformable height of the first-level collision deformation adaptation mechanism is limited, and it cannot provide buffering for vehicles that exceed the height limit by a large margin, thus unable to meet the buffering requirements of the current complex traffic conditions.
[0034] The main object of the present invention is to propose a multi-stage buffering automatic reset height-limiting pole, aiming to solve the problem of poor buffering ability of the current height-limiting pole.
[0035] Please refer to Figure 1 , the present invention proposes a multi-stage buffering automatic reset height-limiting pole 100, including:
[0036] A frame 1, including a crossbeam 11 extending along a first horizontal direction; and,
[0037] At least one buffering structure 2, including an extension part 21, a first buffering part 22 and a second buffering part 23. The extension part 21 extends along the vertical direction, and one end is suspended from the crossbeam 11, and the other end can swing around a first horizontal axis. The first buffering part 22 includes a rotating member 221 and a buffering member 222. The rotating member 221 is rotatably installed at the other end of the extension part 21 around the first horizontal axis. The buffering member 222 protrudes from the rotating member 221 along a second horizontal direction and is used to abut against a vehicle in the second horizontal direction. The second buffering part 23 is arranged at the other end of the extension part 21. The dimension edge of the second buffering part 23 in the vertical direction is higher than the dimension edge of the buffering member 222 in the vertical direction, and the buffering member 222 protrudes from the second buffering part 23 in the second horizontal direction, so that the buffering member 222 is always hit prior to the second buffering part 23.
[0038] In the technical solution of the present invention, by providing the extension part 21 suspended on the cross beam 11 and arranging the first buffer part 22 and the second buffer part 23 at the end of the extension part 21, when the buffer structure 2 is impacted, it can rotate around the axis in the first horizontal direction, thereby improving the buffering capacity of the device, reducing the damage to the buffer structure 2 caused by the impact. At the same time, the buffer structure 2 after being impacted can reset under the action of its own gravity, meeting the requirement of automatic reset. Further, the first buffer part 22 includes a rotating part 221 and a buffer part 222. The rotating part 221 is rotatably installed at the other end of the extension part 21, so that when the buffer part 222 is impacted, it can rotate around the axis in the first horizontal direction, further improving the buffering capacity of the device. Furthermore, by providing the second buffer part 23, when the buffer part 222 is impacted and swings to the same vertical plane as the second buffer part 23, the second buffer part 23 and the buffer part 222 jointly resist the impact object, further improving the buffering capacity of the device. Specifically, the buffer structure 2 in this solution will go through three stages in the complete impact process. In the first stage, the vehicle collides with the buffer part 222 and drives the buffer part 222 to swing to the same vertical plane as the second buffer part 23. In the second stage, the vehicle collides with the buffer part 222 and the second buffer part 23 and drives the buffer part 222 and the second buffer part 23 to swing to the top of the vehicle. In the third stage, the buffer part 222 continuously rubs against the top of the vehicle, making a sound. Through the above three stages, different degrees of collision energy are absorbed, realizing multi-stage buffering of the vehicle. Thus, while achieving automatic reset, it ensures strong buffering capacity, reduces the damage to the device itself, and lowers the maintenance cost.
[0039] It is worth mentioning that the frame 1 is specifically composed of two columns 12 and a cross beam 11. The two columns 12 are arranged on both sides of the road, and the cross beam 11 spans above the two columns 12 to limit the height of the vehicles on the road between the two columns 12.
[0040] It is also worth mentioning that the material of the buffer part 222 is set as steel. With this setting, when the hard structure of steel collides with the vehicle, a significant impact sound will be generated, which can remind the driver of being impacted. Moreover, the friction between the steel and the roof of the vehicle will produce a more intense sound, reminding the driver that the roof of the vehicle has been severely damaged.
[0041] It should be noted that the present solution does not limit the specific implementation form of the extension part 21. In the preferred embodiment of the present invention, please refer to Figures 2 to 3, the extension part 21 includes two extension rods 211, and the two extension rods 211 are suspended at intervals along the first horizontal direction on the cross beam 11 by two hooks; the second buffer part 23 includes two first mounting seats 231 and a limiting rod 232. The two first mounting seats 231 are correspondingly arranged at the other ends of the two extension rods 211, and the limiting rod 232 is arranged between the two first mounting seats 231 for abutting against a vehicle in the second horizontal direction; the rotating member 221 is rotatably mounted on the first mounting seat 231. With such an arrangement, the overall structure is more stable, so that when being impacted, the second buffer part 23 and the buffer member 222 will not shake in any direction other than swinging around the axis in the first horizontal direction. At the same time, the arrangement form of the two buffer members 222 enables the impact energy falling on each buffer member 222 to be significantly reduced during the primary buffering, improving the service life of the buffer member 222, and during the tertiary buffering, the friction area between the buffer member 222 and the vehicle top becomes larger, further enhancing the buffering capacity of the device.
[0042] In another embodiment provided by the present invention, the extension part 21 is provided as one extension rod 211, and the buffer member 222 and the second buffer part 23 are arranged at the free end of the extension rod 211 in a front-back manner in the second horizontal direction. With such an arrangement, the structure is relatively simple and fewer components are used, reducing the manufacturing cost of the device.
[0043] It is worth mentioning that, for the convenience of subsequent maintenance and replacement of the buffer structure 2, the extension rod 211 and the first mounting seat 231 are detachably connected. Specifically, the first mounting seat 231 is suspended at the free end of the extension rod 211, so as to facilitate the replacement of the first buffer structure 2 and the second buffer structure 2.
[0044] In order to further achieve the multi-stage buffering of the device, in an embodiment provided by the present invention, the extension rod 211 is provided as a spring. With such an arrangement, after the device enters the secondary buffering stage, a new tertiary buffering stage will occur. At this time, after the second buffer part 23 and the first buffer part 22 swing to the highest point, they will continuously reciprocate along the extension direction of the spring, thus ensuring that the second buffer part 23 and the first buffer part 22 have sufficient buffering space. And in this process, the spring absorbs a large amount of remaining impact energy, thereby greatly improving the buffering capacity of the device and realizing a four-stage limiting buffer energy absorption mechanism.
[0045] Further, to achieve the rotational connection between the rotating member 221 and the first mounting seat 231, one of the rotating member 221 and the first mounting seat 231 is provided with a rotating shaft 2311, and the other is provided with a through hole that cooperates with the rotating shaft 2311. With this setting, the structure is simple and the assembly is convenient. It is worth mentioning that, in one embodiment, the rotating shaft 2311 is provided on the first mounting seat 231, and a through hole is further provided at the center of the rotating shaft 2311 for the first mounting seat 231 to be suspended on the extension rod 211. With this setting, the overall structure is more compact.
[0046] Further, to further improve the buffering capacity of the present device, please refer to Figure 3 , the second buffer portion 23 further includes a buffer foam 233, and the buffer foam 233 is sleeved outside the limiting rod 232. By providing the buffer foam 233, the buffering capacity of the limiting rod 232 is greatly improved, so that more energy can be absorbed. It is worth mentioning that after the buffer foam 233 is provided, the size edge of the buffer member 222 in the vertical direction is still lower than the size edge of the second buffer portion 23 in the vertical direction, and the buffer member 222 still protrudes from the second buffer portion 23 in the second horizontal direction, so that the buffer member 222 is always hit prior to the second buffer portion 23.
[0047] In one embodiment of the present invention, please refer to Figure 1 , a plurality of the buffer structures 2 are provided, and the plurality of buffer structures 2 are suspended on the cross beam 11 at intervals along the first horizontal direction; the number of the buffer structures 2 is set corresponding to the number of lanes of the road where they are located. With this setting, while achieving lane-by-lane buffer energy absorption, the buffer structures 2 do not affect each other. Therefore, after being damaged by impact, only the corresponding damaged buffer structure 2 needs to be replaced, reducing the maintenance cost. And since the buffer structures 2 are independent of each other, different limiting standards can be set corresponding to different lanes to meet the height limit requirements of different lanes, improving the applicability of the present device.
[0048] Further, the frame 1 further includes a plurality of second mounting seats 13, the plurality of second mounting seats 13 are arranged on the cross beam 11 at intervals along the first horizontal direction, and two through holes are provided on each second mounting seat 13 for the extension rods 211 adjacent to each other in two adjacent buffer structures 2 to be suspended respectively. With this setting, the overall structure is more compact, and the overall number of components is reduced, reducing the manufacturing cost.
[0049] In one embodiment of the present invention, please refer to Figure 3 and Figure 4, two of the buffer members 222 are correspondingly arranged on one of the rotating members 221. The two buffer members 222 are respectively arranged at two opposite side ends of the rotating member 221 in the second direction and extend in opposite directions. By correspondingly arranging two of the buffer members 222 on one of the rotating members 221, the device can adapt to roads with different driving directions. Even if only one multi-stage buffer automatic reset height-limiting frame 100 is provided, the height limit for all lanes in the same direction and in opposite directions on the same extension direction can be satisfied, reducing the assembly time of road facilities and lowering the cost.
[0050] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims
1. A multi-stage buffer automatic reset height limit frame, characterized in that: include: A frame including a crossbeam extending along a first horizontal direction; as well as, At least one buffer structure includes an extension portion, a first buffer portion and a second buffer portion, wherein the extension portion extends in a vertical direction, and one end is suspended from the cross beam, and the other end can swing around a first horizontal axis, the first buffer portion includes a rotating member and a buffer member, the rotating member is rotatably installed on the other end of the extension portion around the first horizontal axis, the buffer member is protruded from the rotating member along the second horizontal direction, and is used to resist against a vehicle in the second horizontal direction, the second buffer portion is provided at the other end of the extension portion, the dimension edge of the second buffer portion in the vertical direction is higher than the dimension edge of the buffer member in the vertical direction, and the buffer member protrudes from the second buffer portion in the second horizontal direction, so that the buffer member is always hit before the second buffer portion.
2. The multi-stage buffer automatic reset height limit frame according to claim 1, characterized in that: The extension portion includes two extension rods, and the two extension rods are suspended on the crossbeam at intervals along a first horizontal direction through two hooks; The second buffer portion includes two first mounting seats and a limiting rod, the two first mounting seats are correspondingly arranged at the other ends of the two extension rods, and the limiting rod is arranged between the two first mounting seats for abutting against the vehicle in the second horizontal direction; The rotating member is rotatably mounted on the first mounting seat.
3. The multi-stage buffer automatic reset height limit frame according to claim 2, characterized in that: The first mounting seat is detachably mounted on the end of the extension rod.
4. The multi-stage buffer automatic reset height limit frame according to claim 2, characterized in that: One of the rotating member and the first mounting seat is provided with a rotating shaft, and the other is provided with a through hole matched with the rotating shaft.
5. The multi-stage buffer automatic reset height limit frame according to claim 2, characterized in that: The second buffer part also includes buffer foam, and the buffer foam is sleeved outside the limiting rod.
6. The multi-stage buffer automatic reset height limit frame according to claim 2, characterized in that: The extension rod is configured as a spring.
7. The multi-stage buffer automatic reset height limit frame according to claim 2, characterized in that: The buffer structure is provided in plurality, and the plurality of buffer structures are suspended on the beam at intervals along a first horizontal direction; The number of the buffer structures is set corresponding to the number of lanes of the road.
8. The multi-stage buffer automatic reset height limit frame according to claim 7, characterized in that: The frame further comprises a plurality of second mounting seats, which are spaced apart on the cross beam along the first horizontal direction, and each of the second mounting seats is provided with two through holes for hanging two adjacent extension rods respectively located in two adjacent buffer structures.
9. The multi-stage buffer automatic reset height limit frame according to claim 1, characterized in that: Two buffer members are correspondingly arranged on one rotating member. The two buffer members are respectively arranged at two opposite side ends of the rotating member in the second direction and extend in opposite directions.
10. The multi-stage buffer automatic reset height limit frame according to claim 1, characterized in that: The material of the buffer member includes steel.