Height limiting rod for municipal roads and bridges

The height restriction bar design, featuring symmetrically installed columns and a sliding channel structure, solves the problem of the non-adjustable height of the height restriction bar, enabling emergency vehicle passage and stable use in remote areas, reducing vehicle collision damage, and making it suitable for road sections with mandatory height restrictions.

CN224031539UActive Publication Date: 2026-03-24ZHONGDI ZHICHENG CONSTR TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The existing height restriction barriers used on municipal roads and bridges cannot be adjusted according to actual needs, especially in emergency situations where they cannot meet the passage needs of special vehicles, and they cannot be used stably in remote areas or when there is no power supply.

Method used

A height limit bar structure was designed, comprising symmetrical mounting columns, sliding channels, sliding rods, suspension ropes, and limiting components. The sliding rods are pulled by the suspension ropes to slide within the sliding channels, and the height scale is adjusted by a pointer to achieve precise adjustment. The stability of the height limit bar under forced height restriction scenarios is ensured by a rotating plate and a locking screw.

Benefits of technology

It enables precise adjustment of the height of the height restriction bar, making it suitable for emergency vehicle passage and stable use in remote areas or without power, reducing vehicle impact damage and suitable for road sections with mandatory height restrictions.

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Abstract

The utility model discloses a height limiting rod for municipal roads and bridges, and belongs to the technical field of height limiting rods. Comprising symmetrically-arranged mounting columns, sliding through grooves are formed in the oppositely-arranged side faces of the two mounting columns correspondingly, sliding rods are arranged in the sliding through grooves, the two ends of each sliding rod extend to the outer sides of the two sliding through grooves correspondingly, and limiting assemblies are arranged at the two ends of each sliding rod correspondingly; the limiting assemblies are used for limiting rotation of the sliding rods in the sliding through grooves, lifting ropes are arranged on the sliding rods located in the sliding through grooves, one ends of the lifting ropes are fixed to the sliding rods, the other ends of the lifting ropes penetrate out of the upper ends of the mounting columns and extend to the lower portions of the mounting bases, fixing plates are arranged on the lower portions of the mounting columns, and the fixing plates are arranged on the lower portions of the mounting columns. One end of the lifting rope is fixed on the mounting column, the other end of the lifting rope is fixed on the fixing plate, a plurality of height scale marks are arranged on the surface of the mounting column, a pointer pointing to the height scale marks is arranged on the lifting rope, and the pointer is fixed on the lifting rope. According to the scheme, the problems mentioned in the background technology are solved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of height limiting rod, specifically relates to the height limiting rod for municipal road and bridge. BACKGROUND

[0002] At present, the height limiting rod widely used on municipal roads and bridges has many problems in practical application. The traditional height limiting rod usually adopts the design of fixed height, and cannot be adjusted in height according to actual needs. Such design is particularly inconvenient when facing special vehicles (such as fire engines, ambulances, engineering vehicles, etc.) that need to pass urgently, and may even hinder the passage of emergency vehicles, causing serious consequences.

[0003] Therefore, height-adjustable height limiting rods have appeared on the market, such as a municipal height limiting rod for bridge and road with patent number CN202321067189.7, which comprises a support column, a bottom box is installed at the bottom of the support column, a screw rod is movably installed on the inner side of the support column, a drive motor is installed on the inner side top wall of the bottom box, and the output end of the drive motor is connected with the bottom end of the screw rod. The above technical scheme can realize the height adjustment of the height limiting rod, but it adjusts the height of the height limiting rod by the motor screw rod, and the height limiting part can rotate but does not have the locking function, so it cannot be used in remote areas (there is no municipal power supply, such as in rainy weather, the solar cell panel arranged thereon is also difficult to ensure the stable supply of function), and cannot be used in scenes and areas where forced height limiting is required, thus bringing inconvenience to actual use. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims to provide a height limiting rod for municipal roads and bridges to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model relates to a height limiting rod for municipal road and bridge, including the installation column of symmetrical arrangement, the side of opposite arrangement of two installation columns all is equipped with the sliding through groove, is equipped with the slide bar in the sliding through groove, the both ends of slide bar extend to the outside of two sliding through grooves respectively, and the both ends of slide bar all are equipped with the limit component, the limit component is used to limit the rotation of slide bar in the sliding through groove, is equipped with the lifting rope on the slide bar in the inside of sliding through groove, one end of lifting rope is fixed on the slide bar, the other end of lifting rope passes out from the upper end of installation column and extends to the lower part of mounting seat, is equipped with the fixed plate on the lower part of installation column, the other end of lifting rope is fixed on the fixed plate, is equipped with a plurality of height scale lines on the surface of installation column, is equipped with the pointer of height scale line on lifting rope, the pointer is fixed on the lifting rope, the lower surface of slide bar is equipped with the rotary plate, both ends of rotary plate are equipped with the pivot, the pivot rotatably connects rotary plate on slide bar, the symmetrical connection plate of being equipped with on slide bar, one end of connection plate is fixed on slide bar, all are equipped with locking screw on connection plate, locking screw is screwed on connection plate, locking screw passes through connection plate and sets up, and the end of locking screw is equipped with the fender, the fender is fixed on the end of locking screw.

[0007] Further, the both sides of the rotary plate are equipped with a plurality of springs outside, and the both ends of the springs are fixed on the slide bar and the rotary plate respectively.

[0008] Further, the limit component comprises a limiting block, the limiting block is slidably connected to the slide bar, the limiting block is provided with a limiting bolt, the limiting bolt fixedly connects the limiting block to the slide bar, and the width of the limiting block is greater than the width of the sliding through groove.

[0009] Further, the lower end of the installation column is provided with an anchoring base, and the anchoring base is fixedly connected to the ground.

[0010] Further, the upper end of the installation column is provided with a fixed pulley, and the lifting rope is wound on the fixed pulley.

[0011] Further, the outer side of the rotary plate is covered with an anti-collision rubber strip.

[0012] Further, the rotary plate is provided with a reflective warning strip.

[0013] Further, the side of the installation column perpendicular to the slide bar is provided with a push rod, the push rod is provided with a plurality of support columns, one end of the support column is fixed to the push rod, the other end of the support column is slidably connected to the installation column, and located in the sliding through groove.

[0014] The utility model has the advantages that:

[0015] When the height limit needs to be adjusted, the operator only needs to pull or loosen the lifting rope, that is, the lifting rope drives the sliding rod to slide in the sliding channel, thereby changing the height of the sliding rod on the mounting column, and when the height is adjusted, the pointer is only needed to be corresponded to the specified height scale position, so that the height of the sliding rod can be accurately adjusted, thereby adjusting the height of the height limit, that is, the height limit can be accurately adjusted, and the adjustment mode is simple.

[0016] Other advantages, objects, and features of the present application will become apparent from the following specification, and are in part, set forth in the claims, or can be learned as a consequence of the practice of the application. The advantages, objects, and features of the present application can be realized and obtained by means of the instruments and combinations particularly pointed out in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the purpose, technical scheme and beneficial effects of the present application more clear, the present application provides the following drawings for illustration:

[0018] Figure 1 It is a perspective view of the height limiting rod of the present application;

[0019] Figure 2 It is a front view of the height limiting rod of the present application;

[0020] Figure 3 It is a perspective view of the height limiting rod of the present application Figure 1 It is a partial enlarged view of position A in the present application;

[0021] Figure 4 It is a cross-sectional view of the mounting column provided with a support column in the present application.

[0022] In the drawings, the following marks are used:

[0023] 1, anchor base; 2, mounting column; 3, sliding channel; 4, sliding rod; 5, limit block; 6, limit bolt; 7, fixed pulley; 8, lifting rope; 9, fixed plate; 10, pointer; 11, height scale; 12, rotating plate; 13, rotating shaft; 14, spring; 15, connecting plate; 16, stop block; 17, locking screw; 18, push rod; 19 support column. DETAILED DESCRIPTION

[0024] As Figures 1-4As shown, the height limiting rod for municipal road and bridge, including symmetrically arranged mounting column 2, the two mounting columns 2 are oppositely arranged on the side surface and are provided with sliding through slot 3, sliding through slot 3 is provided with slide rod 4, both ends of slide rod 4 extend to the outside of two sliding through slot 3 respectively, and both ends of slide rod 4 are provided with limiting assembly, limiting assembly is used to limit the rotation of slide rod 4 in sliding through slot 3, slide rod 4 inside sliding through slot 3 is provided with lifting rope 8, one end of lifting rope 8 is fixed on slide rod 4, the other end of lifting rope 8 is out of the upper end of mounting column 2 and extends to the lower part of mounting seat, the lower part of mounting column 2 is provided with fixed plate 9, winding roller can be arranged on fixed plate 9, the other end of lifting rope 8 is fixed on the winding roller on fixed plate 9, it can be fixed by knotting, and motor or the like can be arranged to control the driving operation of lifting rope 8, a plurality of height scale lines 11 are arranged on the surface of mounting column 2, pointer 10 is arranged on lifting rope 8 and points to height scale line 11, pointer 10 is fixed on lifting rope 8.

[0025] The working principle of the above technical scheme is:

[0026] When the height limiting needs to be adjusted, the operator only needs to pull or loosen the lifting rope 8, that is, the lifting rope 8 drives the slide rod 4 to slide in the sliding through slot 3, thereby changing the height of the slide rod 4 on the mounting column 2, and when adjusting the height, the pointer 10 only needs to be corresponded to the specified height scale line 11 position, so that the height of the slide rod 4 can be accurately adjusted, and the height of the height limiting can be adjusted, that is, the height limiting can be accurately adjusted, and the adjustment method is simple. It is not difficult to understand that the values of the height scale lines 11 should decrease sequentially from top to bottom.

[0027] In an implementable manner, the lower surface of the slide rod 4 is provided with a rotating plate 12, both ends of the rotating plate 12 are provided with a rotating shaft 13, and the rotating shaft 13 rotatably connects the rotating plate 12 to the slide rod 4. The rotating plate 12 is arranged to limit the height by the lower part of the rotating plate 12, that is, when the vehicle hits the rotating plate 12, the rotating plate 12 will rotate, thereby avoiding the rigid contact between the vehicle and the height limiting rod, and causing the vehicle and the height limiting rod to lose too much. Of course, a reflective strip or the like should also be arranged on the rotating plate 12 to facilitate observation at night.

[0028] In an implementable manner, the slide rod 4 is symmetrically provided with a connecting plate 15, one end of the connecting plate 15 is fixed to the slide rod 4, the connecting plate 15 is provided with a locking screw 17, the locking screw 17 is threadedly connected to the connecting plate 15, the locking screw 17 passes through the connecting plate 15, and the end of the locking screw 17 is provided with a stop block 16, the stop block 16 is fixed to the end of the locking screw 17, and the surface of the stop block 16 is vertically arranged with the rotating plate 12. It is not difficult to understand that the rotating plate 12 and the slide rod 4 are provided with a mounting spacing (the spacing can be relatively large), and in the normal state, the stop block 16 is rotated into the spacing between the two, thereby avoiding interference with the rotation of the rotating plate 12.

[0029] In an implementable mode, the two side surfaces of the rotating plate 12 are each provided with a plurality of springs 14, preferably two, which are arranged at the two ends of the rotating plate 12, and the two ends of the spring 14 are fixed to the sliding rod 4 and the rotating plate 12 respectively. The arrangement of the spring 14 can limit the vertical position of the rotating plate 12, avoid the rotation of the rotating plate 12 under the action of wind, and cause the problem of inaccurate height limiting. At the same time, when it is impacted, the spring 14 will deform, and then the rotating plate 12 can rotate to avoid impact, reduce impact loss, and automatically reset after impact.

[0030] That is, by adjusting the position of the locking bolt, the position of the stop block 16 can be adjusted, that is, the stop block 16 can be lowered to contact the surface of the rotating plate 12, and the rotation of the rotating plate 12 can be limited to avoid the rotation of the rotating plate 12. In this way, whether the rotating plate 12 can rotate when it is impacted can be controlled, that is, when it cannot rotate, forced height limiting can be achieved, which can be applied to some forced height limiting areas and scenes to avoid the problem of forcibly breaking through the height limiting rod by the driver.

[0031] In an implementable mode, the limiting assembly includes a limiting block 5 which is slidingly connected to the sliding rod 4, and a limiting bolt 6 is arranged on the limiting block 5, the limiting bolt 6 fixedly connects the limiting block 5 to the sliding rod 4, and the width of the limiting block 5 is greater than the width of the sliding groove 3.

[0032] This arrangement limits the rotation of the sliding rod 4, is simple to install, and facilitates the assembly of the sliding rod 4 on the mounting column 2.

[0033] In an implementable mode, the lower end of the mounting column 2 is provided with an anchoring base 1 which is fixedly connected to the ground.

[0034] In an implementable mode, the upper end of the mounting column 2 is provided with a fixed pulley 7, and a lifting rope 8 is wound around the fixed pulley 7, which improves the pulling effect of the lifting rope 8 and reduces the resistance, and avoids the sliding wear of the lifting rope 8 on the mounting column 2.

[0035] In an implementable mode, the outer surface of the rotating plate 12 is covered with an anti-collision rubber strip.

[0036] In an implementable mode, the side surface of the mounting column 2 perpendicular to the sliding rod 4 is provided with a push rod 18, and a plurality of support columns 19 are arranged on the push rod 18, one end of the support column 19 is fixed to the push rod 18, and the other end of the support column 19 is slidingly connected to the mounting column 2 and located in the sliding groove 3.

[0037] The support column 19 can block and limit the falling of the slide rod 4, avoid the problem that the vehicle impact causes the hanging rope 8 to break, causes the slide rod 4 to fall, and causes greater damage to the vehicle and pedestrians, and meanwhile, when the height is adjusted, the support column 19 only needs to be pulled outwards, and after the adjustment is completed, the support column 19 can be pushed into the sliding through groove 3. Of course, the end portion stopper can be arranged on one end of the support column 19 in the sliding through groove 3, so as to avoid sliding out, and meanwhile, a recess can be arranged in the wall thickness of the mounting column 2, so that when the support column 19 is pulled out, the end portion stopper is located in the recess, so as to avoid interference with the downward movement and upward movement of the slide rod 4.

[0038] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined in the claims of the present application.

Claims

1. A height limiting bar for municipal roads and bridges, characterized in that: The installation column (2) is symmetrically arranged, the opposite sides of the two installation columns (2) are respectively provided with a sliding channel (3), the sliding channel (3) is provided with a sliding rod (4), the two ends of the sliding rod (4) are respectively extended to the outside of the two sliding channels (3), and the two ends of the sliding rod (4) are respectively provided with a limiting assembly; the limiting assembly is used to limit the rotation of the sliding rod (4) in the sliding channel (3); the sliding rod (4) in the sliding channel (3) is provided with a hanging rope (8), one end of the hanging rope (8) is fixed on the sliding rod (4), the other end of the hanging rope (8) is arranged on the upper end of the installation column (2) and extended to the lower part of the mounting base, the lower part of the installation column (2) is provided with a fixed plate (9), the other end of the hanging rope (8) is fixed on the fixed plate (9), the surface of the installation column (2) is provided with a plurality of height scale lines (11), the hanging rope (8) is provided with a pointer (10) pointing to the height scale line (11), and the pointer (10) is fixed on the hanging rope (8); the lower surface of the sliding rod (4) is provided with a rotating plate (12), the two ends of the rotating plate (12) are provided with rotating shafts (13), the rotating shafts (13) are rotatably connected to the sliding rod (4), the sliding rod (4) is symmetrically provided with a connecting plate (15), one end of the connecting plate (15) is fixed on the sliding rod (4), the connecting plate (15) is provided with a locking screw (17), the locking screw (17) is threadedly connected to the connecting plate (15), the locking screw (17) passes through the connecting plate (15), and the end of the locking screw (17) is provided with a stop block (16).

2. The height limiting pole for municipal roads and bridges according to claim 1, characterized in that: The two sides of the rotating plate (12) are provided with a plurality of springs (14), and the two ends of the spring (14) are respectively fixed on the sliding rod (4) and the rotating plate (12).

3. The height limiting rod for municipal roads and bridges according to claim 1, characterized in that: The limiting assembly comprises a limiting block (5), the limiting block (5) is slidably connected to the sliding rod (4), the limiting block (5) is provided with a limiting bolt (6), the limiting bolt (6) fixedly connects the limiting block (5) to the sliding rod (4), and the width of the limiting block (5) is greater than the width of the sliding channel (3).

4. The height pole for municipal road and bridge according to claim 1, characterized in that: The lower end of the installation column (2) is provided with an anchoring base (1), and the anchoring base (1) is fixedly connected to the ground.

5. The municipal road bridge height restriction bar according to claim 1, characterized in that: The upper end of the installation column (2) is provided with a fixed pulley (7), and the hanging rope (8) is wound on the fixed pulley (7).

6. The municipal road bridge height restriction bar according to claim 1, characterized in that: The outer side of the rotating plate (12) is covered with an anti-collision rubber strip.

7. The municipal road bridge height restriction bar according to claim 1, characterized in that: The rotating plate (12) is provided with a reflective warning strip.

8. The municipal road bridge height restriction bar according to claim 1, characterized in that: The side of the installation column (2) perpendicular to the sliding rod (4) is provided with a push rod (18), the push rod (18) is provided with a plurality of supporting columns (19), one end of the supporting column (19) is fixed on the push rod (18), the other end of the supporting column (19) is slidably connected to the installation column (2), and the other end of the supporting column (19) is located in the sliding channel (3).

Citation Information

Patent Citations

  • Municipal height limiting rod for bridge road

    CN220377159U