CN201785711U

CN201785711U - Movable height and overload limiting device

Info

Publication number: CN201785711U
Application number: CN 201020280116
Authority: CN
Inventors: 吴永芳; 徐雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-03
Filing date: 2010-08-03
Publication date: 2011-04-06
Anticipated expiration: 2020-08-03

Abstract

A movable height and overload limiting device can effectively limit ultra-limit transportation of highways and simultaneously guarantees road permit safety and emergency vehicle pass. The movable height and overload limiting device comprises a support and height limiting plates hung below a crossbeam of the support, and is characterized in that the height limiting plates are movably connected with the crossbeam and rotate around a connecting position, a lifting device is mounted on the crossbeam and connected with one height limiting plate, and the height of the height limiting plate is adjusted through the lifting device. The movable height and overload limiting device is fine in overload limiting effect, convenient in daily maintenance, short in repair time and low in operation cost, and further can guarantee emergency traffic pass effectively. In addition, the height limiting device and a vehicle are little in damaged degree after collision. Moreover, the movable height and overload limiting device can not only prevent drivers or passengers from being hurt but reduce maintenance cost.

Description

Activity limit for height overload device

Technical field

The utility model relates to a kind of highway and controls the high device that transfinites, specifically be a kind of can effectively administer highway transfinite transportation, take into account the current activity of road safety and emergency vehicles simultaneously and control the high device that transfinites.

Background technology

For fear of the current overrun vehicle of highway, cause road, bridge to damage, a lot of roads all can adopt height limiter to prevent overrun vehicle traffic, and the height limiter that uses is divided into two kinds substantially at present, a kind ofly is fixing limit for height frame, and another kind is flexible limit for height frame.Fixedly limit for height frame major defect is that energy can not get buffering behind the overrun vehicle bump limit for height frame, cause serious traffic accident easily and cause driver and crew's injures and deaths, and this rigid collision is all very big to the infringement of road, vehicle, limit for height facility, when emergent traffic has current demand, need equipment such as crane to cooperate to protect logical, assurance emergency vehicles that can't economical and efficient are current, and running cost is very high.

And flexible limit for height frame, because of and vehicle collision, vehicle has any damage hardly, but self is very fragile, the regular maintenance difficulty can not well be brought into play the super effect of controlling, it is more multiple that what wave is the caution effect.

Summary of the invention

To be solved in the utility model is exactly that present solid limit for height frame causes injures and deaths easily and adjusts inconvenience, and flexible limit for height frame is controlled the problem of super effect difference, provides a kind of controlling superly to make good use of Height Adjustment activity limit for height easily overload device.

Activity limit for height overload device of the present utility model comprises support and height limiting plate, and height limiting plate is suspended on the crossbeam bottom of support, it is characterized in that described height limiting plate and crossbeam flexibly connect, and height limiting plate rotates around the junction; Lifting gear is housed on the crossbeam, and lifting gear is connected with height limiting plate wherein, adjusts the height limiting plate height by lifting gear.

Described lifting gear is made of handle, reducing motor, capstan winch, lifting shaft and rope, and handle is installed on the reducing motor; Lifting shaft one end is connected with reducing motor, and the other end is connected with capstan winch; Rope one end is on capstan winch, and the other end is connected with height limiting plate, and turning handle drives capstan winch by reducing motor and lifting shaft and rotates, in order to adjust the height limiting plate height.

Described flexible connection is made up of plain bearing housing and sliding bearing, and plain bearing housing is installed in the crossbeam bottom, and height limiting plate is connected with plain bearing housing by sliding bearing.

The described crossbeam back side is provided with position-limited rack, damages plain bearing housing and sliding bearing when avoiding height limiting plate to rotate.

Described height limiting plate bottom parcel rubber neonychium slows down the impact force that height limiting plate is subjected to.

Solar alarming lamp and oil groove are set on the described crossbeam, and oil groove is communicated with plain bearing housing, and lubrication oil flows on the plain bearing housing in oil groove, can assurance equipment the continuation of operation.

Described height limiting plate quantity is provided with according to track quantity, and every track is provided with a height limiting plate.

Activity limit for height overload device is equipped with the portable activity stair in addition, makes things convenient for the administration of highways personnel to arrive the position of lifting gear fast, is convenient to when not using pack up, and prevents unrelated person touching lifting gear.

Activity limit for height overload device of the present utility model is installed in to be needed by the headroom of restriction vehicle, to avoid overrun vehicle to cause the road premature failure on the current highway of restriction.When in violation of rules and regulations vehicle bumps with height limiting plate, rubber absorption portion impact force, height limiting plate is hit power around the rotation of sliding bearing dead axle, and the violation vehicle that travels below avoiding alleviates the height limiting plate that causes because of collision and the damage of vehicle.When the violation Vehicle Speed too fast, after the collision, height limiting plate is subjected to bigger impact force, make height limiting plate need rotate bigger angle and offset impact force, this moment, position-limited rack limited the anglec of rotation of height limiting plate, avoid lifting gear, plain bearing housing and sliding bearing to be damaged, then height limiting plate return under the effect of gravity.Under case of emergency when the emergency vehicles that surpass maximum height limit need pass through, the administration of highways personnel climb up crossbeam by the portable activity stair, handle is installed on the reducing motor, turning handle, the torsion that produces is after reducing motor amplifies, driving capstan winch by lifting shaft rotates, pack up rope, make height limiting plate rise, guarantee that emergency vehicles can pass through rapidly, handle then reverses after emergency vehicles pass through, put down height limiting plate, recover height limiter, take off handle, keep the portable activity stair well, prevent that non-road administration personnel from arbitrarily adjusting height limiting plate.

Activity limit for height overload device of the present utility model is controlled super making good use of, and regular maintenance is convenient, and maintenance time is short, also can not influence the cruising of vehicle after the breakage, and manually lifting of height limiting plate is to satisfy the road demand of case of emergency.After bumping, be that the height limiter or the extent of damage of vehicle are all smaller, not only can avoid driving or passenger injured, can also reduce the maintenance cost of device.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is that attempt the utility model side.

Wherein, support 1, height limiting plate 2, crossbeam 3, handle 4, reducing motor 5, capstan winch 6, lifting shaft 7, rope 8, plain bearing housing 9, sliding bearing 10, position-limited rack 11, rubber neonychium 12, solar alarming lamp 13, oil groove 14.

The specific embodiment

Embodiment 1: a kind of activity limit for height overload device, and being arranged on needs to keep a foothold for two of support 1 and be fixed on the roadside on the current three-lane highway of restriction, and the crossbeam 3 of support 1 is across above highway, and crossbeam 3 belows hang three height limiting plates 2.Every height limiting plate 2 all is connected with plain bearing housing 9 by sliding bearing 10, and plain bearing housing 9 is arranged on crossbeam 3 bottoms, when height limiting plate 2 is subjected to impact force, can rotate around sliding bearing 10 dead axles.One cover lifting gear is set on the crossbeam 3, this lifting gear comprises handle 4, reducing motor 5, capstan winch 6, lifting shaft 7 and rope 8, rope 8 one ends are on capstan winch 6, and the other end is fixed on middle height limiting plate 2 bottoms, and capstan winch 6 is connected with reducing motor 5 by lifting shaft 7, handle 4 is installed on the reducing motor 5, during turning handle 4, torsion amplifies by reducing motor 5, drives capstan winch 6 by lifting shaft 7 and rotates, retraction cables 8 just can be mentioned height limiting plate 2.At the back side of crossbeam 3, also be provided with position-limited rack 11, the rotational angle of restriction height limiting plate 2 avoids height limiting plate 2 excessively to rotate, and damages plain bearing housing 9, sliding bearing 10 and lifting gear.Height limiting plate 2 bottoms are with rubber neonychium 12 parcels, and height limiting plate 2 is during with vehicle collision, can effectively reduce the damage that impact force causes vehicle or height limiting plate 2.Crossbeam 3 also is provided with oil groove 14 with the junction of plain bearing housing 9, adds lubrication oil in the oil groove 14, and lubrication sliding bearing seat 9 and sliding bearing 10 are avoided getting rusty.Also equidistant on the crossbeam 3 five solar alarming lamps 13 have been installed, have reminded the driver to note.

When in violation of rules and regulations vehicle bumps with height limiting plate 2, rubber neonychium 12 absorption portion impact forces, height limiting plate 2 is rotated around sliding bearing 10 dead axles by all the other impact forces, avoids the violation vehicle that travels in the below, alleviates the height limiting plate 2 that causes because of collision and the damage of vehicle.When the violation Vehicle Speed too fast, after the collision, height limiting plate 2 is subjected to bigger impact force, make height limiting plate 2 need the bigger angle of rotation to offset impact force, this moment, position-limited rack 11 limited the anglec of rotation of height limiting plate 2, avoid lifting gear, plain bearing housing 9 to be damaged, then height limiting plate 2 return under the effect of gravity with sliding bearing 10.When the emergency vehicles that surpass maximum height limit need pass through, the administration of highways personnel climbed up crossbeam 3, and handle 4 is installed on the reducing motor 5, turning handle 4, the torsion of generation drive capstan winch 6 by lifting shaft 7 and rotate after reducing motor 5 amplifies, pack up rope 8, make height limiting plate 2 rise, guarantee that emergency vehicles can pass through rapidly, handle 4 then reverses, put down height limiting plate 2, recover height limiter, take off handle 4, prevent that non-road administration personnel from arbitrarily adjusting height limiting plate 2.

Claims

1. activity limit for height overload device, comprise support (1) and height limiting plate (2), height limiting plate (2) is suspended on crossbeam (3) bottom of support (1), it is characterized in that described height limiting plate (2) and crossbeam (3) flexibly connect, and height limiting plate (2) rotates around the junction; Crossbeam is equipped with lifting gear on (3), and lifting gear is connected with a height limiting plate (2) wherein.

2. a kind of activity limit for height overload device as claimed in claim 1, it is characterized in that described lifting gear is made of with rope (8) handle (4), reducing motor (5), capstan winch (6), lifting shaft (7), handle (4) is installed on the reducing motor (5); Lifting shaft (7) one ends are connected with reducing motor (5), and the other end is connected with capstan winch (6); Rope (8) one ends are on capstan winch (6), and the other end is connected with height limiting plate (2).

3. a kind of activity limit for height overload device as claimed in claim 1, it is characterized in that described flexible connection is made up of plain bearing housing (9) and sliding bearing (10), plain bearing housing (9) is installed in crossbeam (3) bottom, and height limiting plate (2) is connected with plain bearing housing (9) by sliding bearing (10).

4. a kind of activity limit for height overload device as claimed in claim 1 is characterized in that described crossbeam (3) back side is provided with position-limited rack (11).

5. a kind of activity limit for height overload device as claimed in claim 1 is characterized in that described height limiting plate (2) bottom parcel rubber neonychium (12).

6. a kind of activity limit for height overload device as claimed in claim 1 is characterized in that being provided with on the described crossbeam (3) solar alarming lamp (13) and oil groove (14), and oil groove (14) is communicated with plain bearing housing (9).

7. a kind of activity limit for height overload device as claimed in claim 1 is characterized in that described height limiting plate (2) quantity is that every track is provided with a height limiting plate (2).