CN212175583U

CN212175583U - Bridge road weight limiting device

Info

Publication number: CN212175583U
Application number: CN202020434511.5U
Authority: CN
Inventors: 张利纳; 刘威; 郭永富; 宋九武; 李兆福; 王刚; 贺琨; 辛洋洋; 王超峰; 王莉莉; 谢闯生; 要胜利; 陈志昂; 何天文; 居伟
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-12-18
Anticipated expiration: 2030-03-30

Abstract

The utility model relates to a bridge road weight limiting device, which solves the problems that vehicles exceeding the weight limit of a bridge run onto the bridge from an entrance without monitoring, the bridge is greatly damaged and even the bridge turns on one side; the technical scheme of its solution is, including the box, there is the rack bottom the box, and there is the ascending arc of opening in the upper end of rack, and there is the external tooth with rack toothing in the outside of arc, and there is the pivot arc upper end, and the cover is equipped with the gyro wheel in the pivot, and there is the lug arc inboard at both ends around the arc, has tooth on the lug, and both ends cover is equipped with the gear around the pivot, the utility model discloses think about novel, through having set up full-automatic dual limit line structure, block the upper bridge to overweight vehicle, make overweight vehicle can't pass through this device upper bridge, the bridge entry restriction vehicle that does not have the control gets into, has guaranteed the safety of bridge, and the structure is ingenious, convenient to use.

Description

Bridge road weight limiting device

Technical Field

The utility model relates to a bridge construction field specifically is a bridge road limit for weight device.

Background

When the bridge is in use, if the weight of the vehicle running on the bridge is not limited, the vehicle running on the bridge can damage the bridge if the weight of the vehicle exceeds the upper limit weight of the bridge, the service life of the bridge is greatly shortened, and the bridge can be directly turned over to cause danger in serious cases; the existing bridge often marks the upper limit of gravity of the bridge at the bridge head, part of the bridge establishes a check point at the bridge head, vehicles to be bridged are manually measured, and the vehicles are allowed or not to be bridged according to the limit weight, however, the entrances and exits of part of the bridge are numerous, and manual check ports cannot be established at the entrances and exits one by one, so that some vehicles exceeding the limit weight can also run on the bridge, great damage is caused to the bridge, and even the bridge turns on one side.

Disclosure of Invention

The utility model aims at solving the above problem, and the heavy device of a bridge road limit that proposes, the heavy vehicle of bridge limit has been solved to this kind of automatic limit device and has been gone up the bridge by the entry of unmanned monitoring, causes very big damage to the bridge, the problem that the bridge turned on one's side even.

The technical scheme includes that the device comprises a box body, a rack capable of sliding left and right is arranged at the bottom of the box body, an arc-shaped plate with an upward opening is arranged at the upper end of the rack, the arc-shaped plate is placed in front and back, outer teeth meshed with the rack are arranged on the outer side of the arc-shaped plate, a rotating shaft is placed in front and back at the upper end of the arc-shaped plate, rollers are sleeved on the rotating shaft, the axial lead of each arc-shaped plate and the projection of the axial lead of the roller inside the arc-shaped plate on the horizontal plane are overlapped, the axial lead of each arc-shaped plate is higher than that of the roller inside the arc-shaped plate, the arc-shaped plate can rotate around the axial lead of the arc-shaped plate, the rollers; the arc inner sides of the front end and the rear end of the arc plate are fixed with lugs, the lugs are provided with teeth, the front end and the rear end of the rotating shaft are respectively sleeved with a gear, when the rack moves rightwards, the arc plate drives the lugs to rotate so that the teeth on the lugs are separated from the gears, the rotating shaft can rotate freely, after the rack moves leftwards and returns to the original state, the arc plate drives the lugs to rotate so that the teeth on the lugs are meshed with the gears, and the rotating shaft is locked so as not to rotate.

The utility model discloses think about novelty, through having set up full-automatic dual restriction structure, block the upper bridge to overweight vehicle, make overweight vehicle can't pass through this device upper bridge, enter into at the bridge entry restriction vehicle of unmanned monitoring, guaranteed the safety of bridge, the structure is ingenious, convenient to use.

Drawings

Fig. 1 is a front sectional view of the present invention when the vehicle is overweight.

Fig. 2 is a front cross-sectional view of the present invention when the vehicle is not overweight.

Fig. 3 is a side view of the present invention.

Fig. 4 shows a view from the direction a-a when overweight.

Fig. 5 is a view from direction a-a when not overweight.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in the attached drawings 1-5, the utility model discloses a box 4, there is rack 5 that can the horizontal slip at box 4 bottom, there is the ascending arc 6 of opening in the upper end of rack 5, arc 6 is placed around and the outside of arc 6 has the external tooth 7 with rack 5 meshing, there is pivot 9 of placing around arc 6 upper end, the cover is equipped with gyro wheel 8 on pivot 9, the axial lead of each arc 6 and the projection of the axial lead of its inside gyro wheel 8 on the horizontal plane coincide, the axial lead of each arc 6 is higher than the axial lead of its inside gyro wheel 8, arc 6 can rotate around its axial lead, gyro wheel 8 can rotate around its axis along with pivot 9, the rotation of arc 6 can make the right-hand member of arc 6 stand out of the ground and the right-hand member highest is higher than gyro wheel 8; the arc inboard at both ends is fixed with lug 10 around the arc 6, has tooth on the lug 10, and both ends cover are equipped with gear 11 around the pivot 9, and when rack 5 moved right, arc 6 drove lug 10 and rotates and make the tooth on the lug 10 break away from with gear 11, and pivot 9 can the free rotation, and after rack 5 moved the reconversion left, arc 6 drove lug 10 and rotates and make the tooth on the lug 10 mesh with gear 11, and locking pivot 9 makes it can not rotate.

In order to restore the original state of the device after the overweight vehicle leaves, the gear 11 is provided with a matching block, and when the rack 5 moves leftwards and the arc-shaped plate 6 drives the lug 10 to rotate clockwise, the first tooth at the left end of the lug 10 can be just meshed with the gear 11; after the overweight vehicle leaves, the balancing weight 12 on the gear 11 makes the gear 11 keep a stable state, the driving hydraulic rod 3 moves leftwards and recovers the original state at the moment, the rack 5 moves leftwards along with the driving hydraulic rod, the arc-shaped plate 6 rotates clockwise under the driving of the rack 5 to drive the lug 10 to rotate clockwise, teeth on the lug 10 are gradually meshed with the gear 11, after the teeth on the lug 10 are completely meshed with the gear 11, the rotating shaft 9 is locked and can not rotate, and the wheel can smoothly pass through the roller 8 without slipping.

In order to enable the vehicle without overweight to pass through, the surface of the roller 8 is rough; when the roller 8 is locked and can not rotate, the vehicle can not slip when passing over the roller 8.

In order to prevent the overweight vehicle from forcibly passing through the upper bridge of the device, a plurality of groups of rollers 8 and arc-shaped plates 6 are uniformly distributed along the advancing direction of the vehicle; when overweight vehicle was forced to walk through this device, a plurality of gyro wheels 8 homoenergetic made the wheel skid, and the arc 6 on a plurality of outstanding ground all can cause the wheel to block, makes the wheel can not pass through, if the vehicle was forced to pass through, the arc 6 can cause the harm to the vehicle of overweight vehicle, finally causes it can't advance.

In order to enhance the monitoring of the bridge on the overweight vehicle, the wagon balance 1 is provided with an alarm; after the overweight vehicle passes through the wagon balance 1, the alarm can send out alarm sound and trigger the road camera to take a picture of the overweight vehicle for recording.

When the device is used specifically, the box body 4 of the device is fixed at the lower part of a road surface, the upper end of the box body 4 is leveled with the road surface, the upper part of the roller 8 is higher than the road surface, the whole arc-shaped plate 6 is positioned in the box body 4 and does not protrude out of the ground, a hole with the right end of the arc-shaped plate 6 extending out of the road surface is reserved at the upper part of the box body 4, a wagon balance 1 is installed on the road surface at the left side of the box body 4, a hydraulic cylinder 2 is installed below the ground at the left end of the box body; when a truck such as a freight car needing weight limitation runs into the lane, firstly, the wagon is driven to the ground scale 1 from left to right for weight measurement, if the weight of the truck meets the requirement, the truck leaves from the ground scale 1 and continuously runs to the bridge from right, and because the arc-shaped plate 6 is wholly positioned below the road surface, the roller 8 with the rough surface can not rotate, the truck is similar to a deceleration strip when moving on the box body 4, and the running of the truck can not be influenced; if the vehicle still needs to get on the bridge after exceeding the specified weight of the bridge, when the vehicle runs on the wagon balance 1, the sensor of the wagon balance 1 can drive the hydraulic rod 3 of the hydraulic cylinder 2 to push the rack 5 to move rightwards, at the moment, the arc-shaped plate 6 meshed with the rack 5 on the outer ring rotates under the drive of the rack 5 by taking the axis of the arc-shaped plate 6 as the center of a circle, so that the right end of the arc-shaped plate 6 protrudes upwards out of the ground until the right end of the arc-shaped plate 6 is higher than the uppermost end of the roller 8, the lug 10 on the arc-shaped plate 6 is gradually separated from the gear 11 on the rotating shaft 9, at the moment, the rotating shaft 9 can rotate freely, when the vehicle runs rightwards through the wagon balance 1, the wheel can slip, meanwhile, the arc-shaped plate 6 can prevent the wheels from moving rightwards, if the vehicle drives the vehicle to move rightwards by force, the wheels can be damaged at the upper end of the arc-shaped plate 6, and finally the overweight vehicle can not get on the bridge.

The utility model discloses set up multiunit gyro wheel 8 and arc 6, carried out multiple powerful interception to the vehicle, ensured bridge road's safety.

It is worth noting that the device needs to be installed on a lane needing weight measurement, and is mainly used for coping with vehicles which are overweight but still want to forcibly go to an axle, so that the device can be used in cooperation with a height limiting rod, the height limiting and shunting are carried out on the vehicles before the vehicles go to the axle, and the weight measurement and the limiting are carried out on the vehicles after a truck higher than a common car drives into the lane where the device is located.

Claims

1. The bridge road weight limiting device is characterized by comprising a box body (4), wherein a rack (5) capable of sliding left and right is arranged at the bottom of the box body (4), an arc-shaped plate (6) with an upward opening is arranged at the upper end of the rack (5), the arc-shaped plate (6) is placed front and back, external teeth (7) meshed with the rack (5) are arranged on the outer side of the arc-shaped plate (6), a rotating shaft (9) is placed front and back at the upper end of the arc-shaped plate (6), rollers (8) are sleeved on the rotating shaft (9), the axial lead of each arc-shaped plate (6) and the projection of the axial lead of the roller (8) inside the arc-shaped plate are superposed on the horizontal plane, the axial lead of each arc-shaped plate (6) is higher than the axial lead of the roller (8) inside the arc-shaped plate, the arc-shaped plate (6) can rotate around the axial lead of the arc-shaped plate, the rollers (8) can rotate around the axial lead of the rotating shaft (9); the arc inboard at both ends is fixed with lug (10) around arc (6), have tooth on lug (10), both ends all overlap gear (11) around pivot (9), when rack (5) moved right, arc (6) drive lug (10) and rotate and make tooth and gear (11) on lug (10) break away from, pivot (9) can free rotation, after rack (5) moved the reconversion left, arc (6) drive lug (10) and rotate and make tooth and gear (11) meshing on lug (10), locking pivot (9) make it can not rotate.

2. The bridge and road weight limiting device according to claim 1, wherein the gear (11) is provided with a matching block, and when the rack (5) moves leftwards and the arc-shaped plate (6) drives the lug (10) to rotate clockwise, the first tooth at the left end of the lug (10) just can be meshed with the gear (11).

3. A bridge and road weight limiting device according to claim 1, wherein the rollers (8) have a rough surface.

4. A bridge and road weight limiting device according to claim 1, wherein the rollers (8) and the arc-shaped plates (6) are provided with a plurality of groups which are uniformly distributed along the vehicle travelling direction.