Height limiting rod for municipal roads and bridges
By introducing adjustable support rods and buffer components into height restriction poles on municipal roads and bridges, the problem of traditional height restriction poles being unable to accommodate oversized vehicles has been solved. This has enabled flexible height adjustment and effective impact buffering, improving the adaptability and safety of the equipment.
Patent Information
- Application Number
- CN202423141451.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Traditional municipal road and bridge height restriction poles have a fixed height, which cannot meet the temporary passage needs of over-height vehicles in special circumstances, causing delays in rescue operations and failing to effectively buffer the impact force when a vehicle collides.
It adopts an adjustable height support rod structure and buffer components, including a cylinder-driven transmission system and a roller buffer mechanism, to achieve flexible height adjustment and buffering function.
The height restriction barrier has improved flexibility and safety, enabling it to be quickly adjusted to meet the needs of special vehicles and effectively reduce damage in the event of a vehicle collision, thus ensuring the safety and reliability of the equipment and vehicles.
Smart Images
Figure CN223593266U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to road and bridge height limiting rod technical field especially uses a height limiting rod for municipal road and bridge. BACKGROUND
[0002] In the management and operation of municipal road and bridge, height limiting rod is the key facility of guaranteeing road and bridge safety, standardizing vehicle passing height, along with the acceleration of urbanization process and the increasing traffic flow, height limiting rod faces more complex and diversified use scene and demand, on one hand, effectively prevent the damage of superhigh vehicle to road and bridge structure, ensure the stability and durability of infrastructure, on the other hand, in special circumstances, such as emergency rescue vehicle passing, large engineering equipment transportation etc., height limiting rod needs to have flexible adjustment mechanism to guarantee the timely satisfaction of special passing demand, and when suffering from vehicle impact and other unexpected situations, height limiting rod should reduce the damage to vehicle and its structure as far as possible and maintain certain safety and reliability,
[0003] The traditional municipal road and bridge height limiting rod adopts fixed structure, is welded or bolted by simple metal stand and cross bar, and mainly relies on the strength of cross bar and the stability of stand connection to block superhigh vehicle in technical principle, and some height limiting rods are provided with some reflective signs on cross bar to enhance warning effect.
[0004] However, the height limiting rod of this kind of traditional fixed structure has serious limitations, because its height is not adjustable, in the face of such as fire fighting, first aid and other superhigh vehicles needing emergency passing, height limiting rod becomes the obstacle of rescue action timely development, cannot quickly make room for special vehicle passing, leads to rescue time being delayed, causes the irreparable loss to people's life and property safety, and therefore a height limiting rod for municipal road and bridge is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a height limiting rod for municipal road and bridge, aims at improving the problem of fixed height of traditional height limiting rod in prior art, which cannot adapt to the temporary passing demand of superhigh vehicle under special circumstances.
[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0007] A height limiting rod for municipal road and bridge, including support rod, the bottom of support rod is fixedly connected with fixed foot, the inside of support rod is provided with sliding slot, the top of support rod is fixedly connected with cross beam, the lower surface of cross beam is provided with adjustment assembly, and the adjustment assembly is used for quick adjustment of equipment.
[0008] The adjusting assembly includes a connecting plate, a connecting column fixedly connected to the bottom of the connecting plate, a fixed plate fixedly connected to the outer wall of the connecting column, a limiting ring fixedly connected to the inner wall of the connecting column, a transmission shaft slidingly connected to the inside of the limiting ring, a gas cylinder fixedly connected to the bottom of the fixed plate, a transmission plate fixedly connected to the output end of the gas cylinder, the upper surface of the transmission plate being fixedly connected to the bottom end of the transmission shaft, an adjusting rod fixedly connected to the bottom of the transmission plate, sliding blocks fixedly connected to the two sides of the adjusting rod, the sliding blocks sliding in the sliding grooves, and a buffer assembly arranged on one side of the supporting rod and used for buffering the equipment and the vehicle.
[0009] As a further description of the above technical solution:
[0010] The buffer assembly includes a connecting flange and a sliding column, the connecting flange being fixedly connected to one side of the supporting rod, and the sliding column being slidingly connected to the outer wall of the connecting flange.
[0011] As a further description of the above technical solution:
[0012] One side of the sliding column is fixedly connected to a compression-resistant plate one, and one side of the compression-resistant plate one is fixedly connected to a contraction shaft.
[0013] As a further description of the above technical solution:
[0014] The top of the contraction shaft is fixedly connected to a compression-resistant plate two, and one side of the compression-resistant plate one is provided with a spring.
[0015] As a further description of the above technical solution:
[0016] One end of the spring is fixedly connected to one side of the compression-resistant plate one, and the other end is fixedly connected to the inner wall of the compression-resistant plate two.
[0017] As a further description of the above technical solution:
[0018] One side of the compression-resistant plate one is fixedly connected to a clamping block, and the clamping block is rotatably connected to a connecting rod.
[0019] As a further description of the above technical solution:
[0020] The outer wall of the connecting rod is slidingly connected to a sliding rod, and one end of the sliding rod is fixedly connected to the inner side of the compression-resistant plate two.
[0021] As a further description of the above technical solution:
[0022] The outer side of the compression-resistant plate two is fixedly connected to a connecting frame, and the connecting frame is rotatably connected to a roller.
[0023] The utility model has the advantages of:
[0024] 1. The utility model discloses a transmission plate is moved to the output end of pneumatic cylinder, further drives the transmission shaft to slide in the inside connection column when the transmission plate moves, thereby synchronous movement of the adjusting rod is caused, further makes the sliding block slide in the inside sliding slot while the adjusting rod moves, thereby the effect that the height of adjusting rod is adjusted fast is realized, the problem that traditional equipment can not be adjusted in height according to the need after installation is solved, and the equipment flexibility is improved.
[0025] 2. The utility model discloses a certain degree of guidance vehicle direction is rolled in the inside connecting frame through the gyro wheel, when the gyro wheel is impacted, effective buffering is carried out through the elastic deformation and the contraction of contraction shaft, thereby the effect that the damage degree of vehicle and equipment is reduced is reached, the problem that traditional equipment can not buffer impact force fast when suffering vehicle impact is solved, and the equipment safety and reliability are improved. DRAWINGS
[0026] Figure 1 It is a three-dimensional schematic view of the height limiting rod for municipal road and bridge that the utility model proposes;
[0027] Figure 2 It is a structure schematic view of the connecting column section of the height limiting rod for municipal road and bridge that the utility model proposes;
[0028] Figure 3 It is Figure 2 It is an enlarged view of A in the middle;
[0029] Figure 4 It is a structure schematic view of one side of the connecting flange of the height limiting rod for municipal road and bridge that the utility model proposes.
[0030] Legend:
[0031] 1, support rod, 2, fixed foot, 3, sliding slot, 4, crossbeam, 5, connecting plate, 6, connecting column, 7, fixed plate, 8, limit ring, 9, transmission shaft, 10, transmission plate, 11, pneumatic cylinder, 12, adjusting rod, 13, sliding block, 14, connecting flange, 15, sliding column, 16, compression plate one, 17, contraction shaft, 18, spring, 19, compression plate two, 20, clamping block, 21, connecting rod, 22, sliding rod, 23, connecting frame, 24, gyro wheel. DETAILED DESCRIPTION
[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0033] With reference to Figure 1 And Figure 2 The utility model provides a kind of height limiting rod for municipal road bridge in an embodiment provided by the utility model: a support pole 1, support pole 1 bottom fixedly connected with fixed foot 2, for stably fixed support pole 1 on ground or other support base, ensure the stability of equipment, support pole 1 inside is equipped with sliding slot 3, support pole 1 top fixedly connected with crossbeam 4, crossbeam 4 is supported by the top end of support pole 1, play the role of support and hang height limiting device, crossbeam 4 lower surface is provided with adjustment assembly, adjustment assembly is used to adjust equipment quickly;
[0034] Adjustment assembly includes connecting plate 5, connecting plate 5 bottom fixedly connected with connecting column 6, connecting column 6 outer wall fixedly connected with fixed plate 7, connecting column 6 inner wall fixedly connected with limit ring 8, limit ring 8 inside is slidably connected with transmission shaft 9, limit ring 8 is to limit the movement range of transmission shaft 9, avoid instability caused by excessive sliding, fixed plate 7 bottom fixedly connected with air cylinder 11, air cylinder 11 as driving source, its output end is fixedly connected with transmission plate 10, transmission plate 10 upper surface is fixedly connected at the bottom end of transmission shaft 9, can be driven transmission shaft 9 movement with the action of air cylinder 11, to realize the lifting of adjusting rod 12 in turn, air cylinder 11 output end is fixedly connected with transmission plate 10, transmission plate 10 upper surface is fixedly connected at the bottom end of transmission shaft 9, transmission plate 10 bottom fixedly connected with adjusting rod 12, adjusting rod 12 both sides are fixedly connected with sliding block 13, sliding block 13 slides in sliding slot 3 inside, sliding block 13 is in the form of slidable, slides in the sliding slot 3 inside support pole 1, in this way, when air cylinder 11 starts, the movement of transmission plate 10 will drive adjusting rod 12 to move upwards or downwards, to adjust the height of height limiting rod, support pole 1 one side is provided with buffer assembly, buffer assembly is used to buffer equipment and vehicle.
[0035] Specifically, when emergency such as fire occurs, the height of fire engine can exceed the limit of ordinary height limiting rod, the up-down movement of transmission plate 10 is driven by the output end of air cylinder 11, the working of air cylinder 11 promotes the linear displacement of transmission plate 10, to ensure that the equipment can be adjusted according to the set trajectory, transmission plate 10 is connected with connecting column 6, when transmission plate 10 moves up and down, connecting column 6 slides in the inside of transmission shaft 9, to make adjusting rod 12 move synchronously, this movement mechanism ensures the mutual cooperation between each component, to ensure the efficiency and stability of adjustment assembly, the movement of adjusting rod 12 is evenly distributed to the sliding block 13 on both sides through transmission structure, sliding block 13 linearly slides through sliding slot 3, sliding slot 3 ensures the movement trajectory of sliding block 13 is accurate, avoids deviation or jamming, since sliding block 13 can move synchronously in sliding slot 3, can effectively realize the balanced distribution of force on both sides, this synchronous movement not only ensures the uniformity of the movement of overall equipment, but also improves the precision and efficiency of operation.
[0036] Referring to Figure 3 and Figure 4 The buffer assembly includes a connecting flange 14 and a sliding column 15, the connecting flange 14 is fixedly connected on one side of the support rod 1, the connecting flange 14 is to provide a solid support base to ensure the stability of the entire buffer assembly and provide sliding space for the sliding column 15, the sliding column 15 is slidingly connected to the outer wall of the connecting flange 14, and a gap is maintained between the outer wall of the sliding column 15 and the connecting flange 14, so that the sliding column 15 can freely slide on the flange to perform a buffering movement, ensuring that it can move smoothly outward when colliding to generate a proper counterforce, thereby mitigating the impact on the height limiting rod system, the sliding column 15 is fixedly connected on one side with a compression plate 16, the compression plate 16 is fixedly connected on one side with a contraction shaft 17, under the action of external force, the contraction shaft 17 can move axially in a certain direction, thereby absorbing a part of the impact force, the contraction shaft 17 is fixedly connected at the top with a compression plate 19, the compression plate 16 is provided on one side with a spring 18, the spring 18 provides a restoring force to absorb the compression force generated by the impact during the buffering process, one end of the spring 18 is fixedly connected on one side of the compression plate 16, and the other end is fixedly connected to the inner wall of the compression plate 19.
[0037] Specifically, when a vehicle collides with the device, causing the device and the vehicle to bear a large impact force, the movement trajectory of the colliding vehicle can be effectively guided to a certain extent through the roller 24, the impact force first acts on the surface of the roller 24, and since the roller 24 is flexible and can rotate freely, this enables the roller 24 to start rotating rapidly at the moment of impact, the rotation of the roller 24 not only reduces the direct impact of the impact force on the device, but also carries away part of the impact energy through rotation, the conversion process of the rotational kinetic energy of the roller 24 effectively reduces the direct impact pressure generated by the impact, reducing the risk of damage to the device, the impact force is transmitted to the contraction shaft 17 through the roller 24, thereby causing the contraction shaft 17 to contract, the contraction movement of the contraction shaft 17 transmits most of the impact force to the spring 18 by slowing down the impact speed during the impact, the spring 18 deforms elastically when subjected to the impact force, converting the impact energy into elastic potential energy for storage, the elastic deformation of the spring 18 not only effectively absorbs the impact force, but also releases the stored energy according to the physical principle after the force is removed, thereby ensuring the reaction speed and buffering capacity of the assembly.
[0038] Referring to Figure 3 and Figure 4The side of the compression plate 16 is fixedly connected with a clamping block 20, the clamping block 20 is open at both ends and forms a groove structure, which can be stably embedded into the side edge of the compression plate 16, the clamping block 20 is rotatably connected with a connecting rod 21, the connecting rod 21 is slidably connected with a sliding rod 22, the sliding part of the sliding rod 22 is fixed on the outer wall of the connecting rod 21 through a guide rail, so as to avoid excessive friction during sliding, one end of the sliding rod 22 is fixedly connected to the inner side of the compression plate 19, the outer side of the compression plate 19 is fixedly connected with a connecting frame 23, the connecting frame 23 is rotatably connected with a roller 24, the outer diameter of the roller 24 is designed to be large, so as to reduce the friction during operation and ensure the stable movement of the assembly, and the operation track of the vehicle can also be guided to a certain extent.
[0039] Specifically, under the joint action of the contraction shaft 17 and the spring 18, most of the impact energy is effectively absorbed, and the equipment and the vehicle are prevented from being damaged by excessive impact, at the same time, the deformation of the spring 18 also drives one end of the connecting rod 21 to rotate, the connecting rod 21 rotates in the clamping block 20 through cooperation with the clamping block 20, so that the impact force is transmitted to the sliding rod 22 through this movement, the sliding rod 22 allows the connecting rod 21 to slide stably in it, the sliding of the connecting rod 21 not only can further disperse and absorb the remaining impact force, but also the impact force is further relieved and dispersed through the internal structure of the sliding rod 22, so as to ensure the overall stability of the assembly, the sliding process of the connecting rod 21 in the sliding rod 22 can uniformly distribute the remaining impact force along the track of the sliding rod 22, which avoids the structural damage caused by excessive local force, in addition, the free movement of the sliding rod 22 also ensures the uniform distribution of the impact force, so as to reduce the local impact on the equipment and avoid potential failures caused by excessive concentrated force.
[0040] Working principle: when using the device, the transmission plate 10 is driven by the air cylinder 11 output end to move up and down, the connecting column 6 is further slid in the transmission shaft 9 by the movement of the air cylinder 11, so as to drive the adjusting rod 12 to move synchronously, when the adjusting rod 12 moves, the two side sliding blocks 13 will be forced to slide synchronously in the sliding groove 3, so as to ensure the uniformity of the movement, so as to facilitate the operator to quickly adjust the equipment according to the actual use, when the equipment is hit by a vehicle, the rolling wheel 24 can guide the movement track of the hit vehicle to a certain extent, the impact force is first applied to the surface of the rolling wheel 24, since the rolling wheel 24 can rotate flexibly, the impact force will make the rolling wheel 24 start to rotate rapidly, part of the impact force will be converted into the rotational kinetic energy of the rolling wheel 24, under the action of the impact force, the contraction shaft 17 further moves to contract, so that the spring 18 deforms elastically to store elastic potential energy, under the movement of the contraction shaft 17 and the spring 18, most of the impact force will be absorbed, so as to prevent the equipment and the vehicle from being damaged, while the spring 18 deforms, the connecting rod 21 one end will also rotate in the clamping block 20 under the action of the impact force, by sliding in the sliding rod 22, the remaining impact force can be effectively absorbed, and the impact force generated by the impact can be effectively buffered.
[0041] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A height limiting bar for municipal roads and bridges, comprising a support bar (1), characterized in that: The bottom of the support rod (1) is fixedly connected with a fixing foot (2), the inside of the support rod (1) is provided with a sliding groove (3), and the top of the support rod (1) is fixedly connected with a cross beam (4). The adjusting assembly comprises a connecting plate (5), the bottom of the connecting plate (5) is fixedly connected with a connecting column (6), the outer wall of the connecting column (6) is fixedly connected with a fixing plate (7), the inner wall of the connecting column (6) is fixedly connected with a limiting ring (8), the inside of the limiting ring (8) is slidably connected with a transmission shaft (9), the bottom of the fixing plate (7) is fixedly connected with a gas cylinder (11), the output end of the gas cylinder (11) is fixedly connected with a transmission plate (10), the upper surface of the transmission plate (10) is fixedly connected to the bottom end of the transmission shaft (9), the bottom of the transmission plate (10) is fixedly connected with an adjusting rod (12), the two sides of the adjusting rod (12) are fixedly connected with sliding blocks (13), the sliding blocks (13) slide in the sliding groove (3), and the side of the support rod (1) is provided with a buffer assembly.
2. The height limiting rod for municipal roads and bridges according to claim 1, characterized in that: The buffer assembly comprises a connecting flange (14) and a sliding column (15), the connecting flange (14) is fixedly connected to one side of the support rod (1), and the sliding column (15) is slidably connected to the outer wall of the connecting flange (14).
3. The height limiting rod for municipal roads and bridges according to claim 2, characterized in that: One side of the sliding column (15) is fixedly connected with a compression plate one (16), one side of the compression plate one (16) is fixedly connected with a contraction shaft (17).
4. The height limiting rod for municipal roads and bridges according to claim 3, characterized in that: The top of the contraction shaft (17) is fixedly connected with a compression plate two (19), and one side of the compression plate one (16) is provided with a spring (18).
5. The height limiting rod for municipal roads and bridges according to claim 4, characterized in that: One end of the spring (18) is fixedly connected to one side of the compression plate one (16), and the other end is fixedly connected to the inner wall of the compression plate two (19).
6. The height limiting rod for municipal roads and bridges according to claim 5, characterized in that: One side of the compression plate one (16) is fixedly connected with a clamping block (20), and the clamping block (20) is rotatably connected with a connecting rod (21).
7. The height limiting rod for municipal roads and bridges according to claim 6, characterized in that: The outer wall of the connecting rod (21) is slidably connected with a sliding rod (22), and one end of the sliding rod (22) is fixedly connected to the inner side of the compression plate two (19).
8. The height limiting rod for municipal roads and bridges according to claim 7, characterized in that: The outer side of the compression plate two (19) is fixedly connected with a connecting frame (23), and the inside of the connecting frame (23) is rotatably connected with a roller (24).