CN210031591U

CN210031591U - Adjustable bridge height limiting device

Info

Publication number: CN210031591U
Application number: CN201920362133.1U
Authority: CN
Inventors: 袁超
Original assignee: Zhengzhou University of Science and Technology
Current assignee: Zhengzhou University of Science and Technology
Priority date: 2019-03-21
Filing date: 2019-03-21
Publication date: 2020-02-07
Anticipated expiration: 2029-03-21

Abstract

The utility model discloses an adjustable bridge height limiting device, which comprises a support column and a cross beam, wherein the cross beam is of a cavity structure, and a motor and a controller are arranged in the cavity of the cross beam; the warning horn and the warning lamp are installed on the supporting columns, fixing grooves and sliding grooves are symmetrically formed in the upper ends of the opposite side surfaces of the two supporting columns, a reel is rotatably installed in the fixing grooves, the motor is in transmission connection with the reel through a transmission belt, a warning roller shutter is wound outside the reel, the tail end of the warning roller shutter is connected with a height limiting rod, the height limiting rod is installed in the sliding grooves and can slide up and down, and infrared emitters are symmetrically installed at the two ends of the height limiting rod; the two sides of the road in front of the height limiting frame are respectively provided with an upright post, the upper end of the upright post is provided with an infrared receiver, and the infrared receiver is matched with an infrared emitter which is diagonal and equal in height. The utility model discloses can provide the signal that whether objective vehicle can pass through limit for height bridge to adjustable limit for height.

Description

Adjustable bridge height limiting device

Technical Field

The utility model relates to a limit for height device, in particular to bridge limit for height device with adjustable.

Background

The bridge is an important traffic facility required when railways, roads, channels, pipelines, pedestrians and the like cross river and sea, valleys or other traffic lines, different bridges have different designs and are different in bearing, and the height limit of the bridge is indispensable to the protection of the bridge. However, most of the existing bridge height limiting devices are height limiting rods with fixed heights, drivers can only subjectively judge whether the height limiting rods can pass through the height limiting devices, so that many damage incidents of the height limiting rods are caused, and meanwhile, the height limiting rods with the fixed heights cannot meet the requirement that facilities exceeding the height limiting rods enter the bridge in an emergency; and the number of vehicles is small at night, and the height limiting device with fixed height greatly reduces the utilization rate of the bridge at night.

Disclosure of Invention

An object of the utility model is to provide a bridge limit for height device with adjustable for solve the limit for height device among the prior art and can't provide objective vehicle signal whether can pass, and can not deal with the problem that the facility of exceeding the limit for height can't get into the bridge under the emergency, and make it have adjustable limit for height.

In order to realize the above purpose, the technical scheme of the utility model is as follows:

an adjustable bridge height limiting device comprises a height limiting frame fixed on a road surface, wherein the height limiting frame comprises two support columns vertically fixed on two sides of the road surface and a cross beam connected with the top ends of the two support columns, a height limiting warning board is installed on the cross beam, the cross beam is of a cavity structure, and a motor and a controller are installed in a cavity of the cross beam; the warning device comprises supporting columns, a warning horn and warning lamps, wherein fixing grooves and sliding grooves are symmetrically formed in the upper ends of the opposite side surfaces of the two supporting columns, the fixing grooves are located above the sliding grooves, a scroll is rotatably mounted in each fixing groove, a warning roller shutter is wound outside each scroll, the tail end of each warning roller shutter is connected with a height limiting rod, the height limiting rods are mounted in the sliding grooves and can slide up and down, and infrared emitters are symmetrically mounted at the two ends of each height limiting rod; the infrared transmitter is connected with the infrared receivers which are opposite in angle and equal in height.

Preferably, the height limiting warning boards are two LED height limiting warning boards.

Preferably, the motor is in transmission connection with the reel through a transmission belt.

Preferably, a reflective warning sticker is pasted on the surface of the warning roller shutter.

Preferably, a lifting switch is mounted at the lower part of the supporting column, and the lifting switch comprises a lifting button and a descending button.

The utility model has the advantages that:

(1) the infrared emitter is matched with the diagonal infrared receiver, whether the running vehicle is ultrahigh can be measured in real time according to the height of the height limiting rod, the prompt of whether the running vehicle exceeds the height limit is given before the vehicle passes through the height limiting frame, and the probability of occurrence that a driver crashes the height limiting device due to wrong judgment is reduced.

(2) The reflection of light warning subsides that the warning was pasted on the roll screen make the utility model discloses have great warning area, can more obviously warn the vehicle of traveling, reduce the emergence probability of accident.

(3) The infrared receivers vertically arranged can be used for setting different limited heights to meet the requirements of different occasions.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a sectional view taken along the direction B-B in fig. 1.

The labels in the figure are: 1-supporting column, 2-beam, 3-height limiting warning board, 4-motor, 5-controller, 6-driving belt, 7-warning horn, 8-warning lamp, 9-fixing groove, 10-sliding groove, 11-scroll, 12-warning rolling curtain, 13-height limiting rod, 14-infrared emitter, 15-pillar, 16-infrared receiver and 17-lifting switch.

Detailed Description

The technical solutions in the present embodiments will be clearly and completely described below with reference to the accompanying drawings in the present embodiments, which, however, should not be construed as limiting the present invention to specific embodiments, but are for explanation and understanding only:

an adjustable bridge height limiting device is shown in fig. 1, fig. 2 and fig. 3, and comprises a height limiting frame fixed on a road surface, wherein the height limiting frame comprises two support columns 1 vertically fixed on two sides of the road surface and a cross beam 2 connected with the top ends of the two support columns 1, the cross beam 2 is of a cavity structure, a motor 4 and a controller 5 are installed in a cavity of the cross beam 2, the motor 4 is a three-phase asynchronous alternating current motor, a rotor of the motor can rotate forwards and backwards and is used for adjusting the height of the height limit, the motor 4 is installed at one end in the cavity of the cross beam, a transmission belt 6 is installed on an output shaft of the motor 4, the controller 5 is universal in common technology and comprises a chip such as a single chip microcomputer with a data processing function and capable of driving; two red LED height-limiting warning boards 3 are mounted on the outer side face, opposite to the running direction, of the cross beam 2, one pattern is 3.5, the other pattern is 4.5, the height of the height limit in meters is represented respectively, and the two height-limiting warning boards 3 are connected with the controller 5. The lifting switch 17 is installed on the support column 1, the lifting switch 17 is connected with the controller 5 and comprises a lifting button and a descending button, and the lifting switch 17 is connected with the controller 5; the side faces (namely the side faces opposite to the driving direction) of the two support columns 1 in the same direction are provided with a warning horn 7 and a warning lamp 8, and the warning horn 7 and the warning lamp 8 are both connected with the controller 5; fixed slots 9 and sliding grooves 10 are symmetrically formed in the upper ends of the opposite side faces of the two support columns 1, the fixed slots 9 are located above the sliding grooves 10, a reel 11 is rotatably mounted in the fixed slots 9, and the motor 4 is in transmission connection with the reel 11 through a transmission belt 6. A warning roller shutter 12 is wound outside the scroll 11, the warning roller shutter 12 is a corrosion-resistant soft cloth shutter, and a reflective warning sticker is pasted on the surface of the warning roller shutter, so that the warning roller shutter has the characteristics of being striking and has the function of warning a driver; the tail end of the warning roller shutter 12 is connected with a height limiting rod 13, the two top ends of the height limiting rod 13 are provided with limiting blocks, the height limiting rod 13 is installed in the sliding groove 10 and can slide up and down, the sliding groove 10 cannot slide out, the two ends of the height limiting rod 13 are symmetrically provided with infrared emitters 14, and the infrared emitters 14 are connected with the controller 5. Upright posts 15 are symmetrically arranged on the height-limiting frame and on two sides of a road opposite to the driving direction, the height of the upright posts 15 on the ground is 5m and is 10m away from the height-limiting frame, and a plurality of infrared receivers 16 which are closely arranged are vertically arranged at the upper ends of the upright posts 15 and can be used for setting different limiting heights to meet the requirements of different occasions; the infrared receiver 16 is connected to an infrared emitter 14 at an opposite angle and equal height (i.e. the infrared emitter 14 at the left end of the height limiting rod 13 is connected to the infrared receiver 16 on the pillar 15 at the right side of the road, the infrared emitter 14 at the right end of the height limiting rod 13 is connected to the infrared receiver 16 on the pillar 15 at the left side of the road), and the infrared receiver 16 is connected to the controller 5 through a cable embedded under the ground. The electrical components presented herein are all electrically connected to 220V mains.

The utility model discloses a working method:

the bridge traffic flow is great daytime, should restrict overweight vehicle and drive into the bridge, 6 early: 00, a descending button on a lifting switch 17 is pressed, a motor 4 is operated through a controller 5, a rotor of the motor 4 drives a scroll 11 to rotate clockwise through a transmission belt 6, a warning roller shutter 12 is unfolded downwards, a height limiting rod 13 descends to a position 3.5m away from a road surface along a sliding groove 10, infrared rays emitted by an infrared emitter 14 on the height limiting rod 13 are received by an infrared receiver 16 on an upright post 15 at a position 3.5m away from the ground, the infrared receiver 16 transmits signals to the controller 5, the controller 5 stops the motor 4, meanwhile, a height limiting warning board 3 with a pattern of '3.5' is lightened, a height limiting warning board 3 with a pattern of '4.5' is extinguished, and the height limit at the moment is 3.5 meters.

When the traffic flow of the bridge is small at night, heavier vehicles which cannot drive into the bridge in the daytime can be permitted to drive into the bridge, or a facility exceeding a limited height enters the bridge in an emergency, a lifting button on a lifting switch 17 is pressed, a motor 4 is operated through a controller 5, a rotor of the motor 4 drives a reel 11 to rotate anticlockwise through a transmission belt 6, the upper end of a warning roller shutter 12 is rolled up, a height limiting rod 13 rises to a position 4.5m away from the road surface along a sliding groove 10, infrared rays emitted by an infrared emitter 14 on the height limiting rod 13 are received by an infrared receiver 16 on an upright post 15 at a position 4.5m away from the ground, the infrared receiver 16 transmits signals to the controller 5, the controller 5 stops the motor 4 from operating, and simultaneously enables a height limiting warning board 3 with a pattern of '4.5' to light up, the height limiting warning board 3 with a pattern of '3.5' to extinguish, and the height limit at the moment is 4.5.

The vehicle is about to drive into the bridge, and the reflection of light warning subsides that have pasted on warning roll curtain 12 will remind the driver, and bridge limit for height here, limit for height device, driver's accessible light limit for height warning board 3 know the height of injecing to whether preliminary judgement vehicle of driving can pass through. When the vehicle passes through the upright post 15 and does not reach the height limiting frame, if the vehicle does not exceed the limited height, the signal of the infrared transmitter 14 can be received by the infrared receiver 16, and the vehicle can normally pass through the height limiting device; if the vehicle exceeds the defined height, the ultra-high part of the vehicle will block the transmission of the infrared ray, the connection between the infrared ray emitter 14 and the infrared ray receiver 16 is interrupted, at this time, the infrared ray receiver 16 sends an interrupt signal to the controller 5, the controller 5 makes the alarm horn 7 sound, and the alarm lamp 8 is on at the same time, so as to warn the driver that the vehicle exceeds the defined height and cannot pass.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a bridge limit for height device with adjustable, is including fixing limit for height frame on the road surface, and limit for height frame includes two vertical support columns (1) of fixing in the road surface both sides and crossbeam (2) of connecting two support columns (1) tops, install limit for height warning sign (3), its characterized in that on the crossbeam: the beam (2) is of a cavity structure, and a motor (4) and a controller (5) are installed in the cavity of the beam (2); the warning device is characterized in that the supporting columns (1) are provided with warning horns (7) and warning lamps (8), the upper ends of the opposite side surfaces of the two supporting columns (1) are symmetrically provided with fixing grooves (9) and sliding grooves (10), the fixing grooves (9) are positioned above the sliding grooves (10), the fixing grooves (9) are rotatably provided with reels (11), the reels (11) are wound with warning roller shutters (12), the tail ends of the warning roller shutters (12) are connected with height limiting rods (13), the height limiting rods (13) are installed in the sliding grooves (10) and can slide up and down, and the two ends of the height limiting rods (13) are symmetrically provided with infrared emitters (14); the infrared transmitter is characterized in that upright columns (15) are symmetrically arranged on two sides of a road in front of the height limiting frame respectively, a plurality of infrared receivers (16) which are vertically arranged are arranged at the upper ends of the upright columns (15), and the infrared transmitter (14) is connected with the infrared receivers (16) which are opposite in angle and equal in height.

2. The adjustable bridge height limiting device of claim 1, wherein: the height limiting warning boards (3) are LED height limiting warning boards and are two.

3. The adjustable bridge height limiting device of claim 1, wherein: the motor (4) is in transmission connection with the reel (11) through a transmission belt (6).

4. The adjustable bridge height limiting device of claim 1, wherein: the surface of the warning roller shutter (12) is pasted with a reflective warning sticker.

5. The adjustable bridge height limiting device of claim 1, wherein: and a lifting switch (17) is installed on the lower part of the supporting column (1), and comprises a lifting button and a descending button.