CN208415142U

CN208415142U - A kind of adjustable limit for width height limiter of highway bridge

Info

Publication number: CN208415142U
Application number: CN201820862111.7U
Authority: CN
Inventors: 李安定; 吴哲军
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-05
Filing date: 2018-06-05
Publication date: 2019-01-22
Anticipated expiration: 2028-06-05

Abstract

The utility model discloses a kind of adjustable limit for width height limiters of highway bridge, including two root posts, the upper end of the column is welded with overarm, position between the column close to overarm lower end slidably connects crossbeam, the upper end of the overarm is welded with shield, and the upper end of the overarm is located at the position in shield and is equipped with servo motor, and interference fit has gear on the output shaft of the servo motor, chain is rotatably connected on the gear, and chain is horizontal positioned.The utility model is rotated by servo motor drives screw rod rotation, move the crossbeam on screw rod, the height adjustment of crossbeam can be fast implemented, reduce the time that emergency vehicle passes through prevents only one end from can be gone up and down so that the both ends of crossbeam be made to synchronize height adjustment, the other end is caused the phenomenon that Caton occur, the stability for improving crossbeam movement is adjusted more flexible changeable by the width between rotatable position limiting fence adjusting post.

Description

A kind of adjustable limit for width height limiter of highway bridge

Technical field

The utility model relates to Highway bridge technique fields more particularly to a kind of adjustable limit for width limit for height of highway bridge to fill It sets.

Background technique

In order to avoid current Overheight Vehicles damage the building facilities such as road, bridge, many roads are both provided with Height limiter, currently, urban transportation limit for height equipment mainly takes common frame structure, in highway bridge entry position steel pipe The portal frame of welding is usually fixed, and hangs up limit for height mark on the gantry, simultaneously because the fixation of limit for height limit for width device It is single non-adjustable, prevent large-scale emergency vehicles, ambulance vehicles, breakdown lorry, etc. special emergency vehicles from passing through in time, cannot Height is adjusted in real time according to special circumstances, brings very big inconvenient and influence very big to the vehicle for needing to pass through in time.

Utility model content

Purpose of the utility model is to solve limit for height line width devices in the prior art to be carried out according to special circumstances The problem of adjusting in time, and the adjustable limit for width height limiter of a kind of highway bridge proposed.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of highway bridge adjustable limit for width height limiter, including two root posts, the upper end of the column are welded with overarm, Position between the column close to overarm lower end slidably connects crossbeam, and the upper end of the overarm is welded with shield, described The position that the upper end of overarm is located in shield is equipped with servo motor, is interference fitted on the output shaft of the servo motor with teeth It takes turns, chain is rotatably connected on the gear, and chain is horizontal positioned.

Preferably, one end close to each other in two columns offers rectangle sliding slot, interior in the rectangle sliding slot Wall upper and lower ends are welded with bearing, and interference fit has screw rod, the equal gap set in the both ends of the crossbeam in the inner shaft of the bearing It connects on screw rod, and the position of crossbeam gap socket screw rod offers the internal screw thread being meshed with screw rod, the lower end of the screw rod Gap is socketed with gag lever post, and one end of the gag lever post is welded on the inner wall of rectangle sliding slot.

Preferably, the lower end of column side close to each other is welded with two fixed blocks, two fixed blocks it Between be rotatably connected to position limiting fence, the upper and lower ends of the position limiting fence are welded with pin shaft, and the pin shaft clearance fit is in fixed block The heart, there are two slide bar, the slide bars to fix far from one end of position limiting fence for one end clearance fit of the position limiting fence far from fixed block It is connected with railing, and railing is placed vertically.

Preferably, reflection plaster is posted on the crossbeam.

Preferably, through hanging oneself from a beam and extending in shield, the upper end of the screw rod is interference fitted for the upper end of the screw rod There is gear, the upper end of the screw rod in the column of the overarm left end is welded on the output shaft of servo motor.

Preferably, the plotted of the crossbeam and fixed block is not in the same horizontal line.

The utility model has the benefit that compared with prior art

1, the utility model is rotated by servo motor drives screw rod rotation, moves the crossbeam on screw rod, can be fast Speed realizes the height adjustment of crossbeam, reduces the time that emergency vehicle passes through；

2, by servo motor band moving gear, gear drives chain to be driven, the screw rod in column is made to synchronously rotate, To make the both ends of crossbeam synchronize height adjustment, prevents only one end from can be gone up and down, the other end is caused Caton occur Phenomenon improves the stability of crossbeam movement；

3, by the width between rotatable position limiting fence adjusting post, the area occupied of column is reduced, and is operated simpler It is convenient, the limit for width range of position limiting fence can be improved by slidably slide bar, when it is not necessary that position limiting fence is gone to side i.e. when carrying out limit for width Can, it adjusts more flexible changeable.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of adjustable limit for width height limiter of highway bridge structural schematic diagram；

Fig. 2 be the utility model proposes a kind of adjustable limit for width height limiter of highway bridge column internal structure illustrate Figure；

Fig. 3 be the utility model proposes a kind of adjustable limit for width height limiter of highway bridge fixed block side connection show It is intended to.

In figure: 1 column, 2 fixed blocks, 3 crossbeams, 4 overarms, 5 shields, 6 servo motors, 7 gears, 8 chains, 9 bearings, 10 Rectangle sliding slot, 11 screw rods, 12 gag lever posts, 13 pin shafts, 14 position limiting fences, 15 slide bars, 16 railings.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Referring to Fig.1-3, a kind of highway bridge adjustable limit for width height limiter, including two root posts 1, the upper end weldering of column 1 It is connected to overarm 4, the position between column 1 close to 4 lower ends of overarm slidably connects crossbeam 3, and 4 upper end of hanging oneself from a beam is welded with shield 5,4 position that is located in shield 5 of upper end of hanging oneself from a beam is equipped with servo motor 6, and shield 5 can prevent servo motor 6 by rain Water enchroachment (invasion) is attacked, and interference fit has gear 7 on the output shaft of servo motor 6, chain 8 is rotatably connected on gear 7, and chain 8 is horizontal It places.

One end close to each other offers rectangle sliding slot 10 in two root posts 1, and crossbeam 3 is slidably connected at rectangle sliding slot 10 Interior, the inner wall upper and lower ends in rectangle sliding slot 10 are welded with bearing 9, and interference fit has screw rod 11 in the inner shaft of bearing 9, horizontal The equal gap in the both ends of beam 3 is socketed on screw rod 11, and the position of 3 gap of crossbeam socket screw rod 11 offers and is meshed with screw rod 11 Internal screw thread, the lower gap of screw rod 11 is socketed with gag lever post 12, and one end of gag lever post 12 is welded on the inner wall of rectangle sliding slot 10 On, shaking when limited block 10 can prevent screw rod 11 from rotating improves stability when screw rod 11 rotates.

The lower end of column 1 side close to each other is welded with two fixed blocks 2, is rotatably connected between two fixed blocks 2 Position limiting fence 14, the upper and lower ends of position limiting fence 14 are welded with pin shaft 13, and 13 clearance fit of pin shaft is in 2 center of fixed block, position limiting fence 14 It is rotated by pin shaft 13, the width between column 1 can be limited, adjusting is more flexible changeable, and position limiting fence 14 is far from fixed block 2 One end clearance fit there are two slide bar 15, the limit for width range of position limiting fence 14 can be improved by slide bar 15, slide bar 15 is far from limit The one end on column 14 is fixedly connected with railing 16, and railing 16 is placed vertically.

Reflection plaster is posted on crossbeam 3, can make to sense crossbeam by light-illuminating when vehicle travel at night by reflection plaster 3。

The upper end of screw rod 11 is through overarm 4 and extends in shield 5, and the upper end interference fit of screw rod 11 has gear 7, hangs The upper end of screw rod 11 in the column 1 of 4 left end of beam is welded on the output shaft of servo motor 6, drives chain 8 to make by gear 7 Screw rod 11 in column 1, which can synchronize, to be rotated.

The plotted of crossbeam 3 and fixed block 2 in the same horizontal line, does not make fixed block 2 carry out height adjustment in crossbeam 3 When not will do it obstruction.

When the utility model is used, when needing to carry out limit for height or adjustment height, servo motor 6, servo motor 6 are opened Screw rod 11 is driven to rotate, the rotation of screw rod 11 is revolved to drive crossbeam 3 to carry out height adjustment, by servo motor 6 with moving gear 7 Turn, be driven by chain 8, makes the gear 7 of even side that screw rod 11 be driven to rotate, move synchronously the screw rod 11 on both sides, Guarantee that stability is higher when the height of crossbeam 3 is adjusted, prevents only 3 one end height of crossbeam and drive other end height It adjusts and the other end is caused the case where Caton occur, when carrying out line width, rotary spacing column 14 simultaneously stretches railing 16, and slide bar 15 exists Sliding in gag lever post 12, expands the range of position limiting fence 14, thus passable width between adjusting post 1, when without carrying out line When wide, position limiting fence 14 is gone back to and slide bar 15 is pushed back into position limiting fence 14.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

1. a kind of adjustable limit for width height limiter of highway bridge, including two root posts (1), which is characterized in that the column (1) Upper end is welded with overarm (4), and the position between the column (1) close to overarm (4) lower end slidably connects crossbeam (3), described The upper end of overarm (4) is welded with shield (5), and the position that the upper end of the overarm (4) is located in shield (5) is equipped with servo Motor (6), being interference fitted on the output shaft of the servo motor (6) has gear (7), is rotatably connected to chain on the gear (7) Item (8), and chain (8) is horizontal positioned.

2. a kind of adjustable limit for width height limiter of highway bridge according to claim 1, which is characterized in that two described vertical One end close to each other offers rectangle sliding slot (10) in column (1), and the inner wall upper and lower ends in the rectangle sliding slot (10) are welded It is connected to bearing (9), there is screw rod (11) interference fit in the inner shaft of the bearing (9), the equal gap socket in the both ends of the crossbeam (3) On screw rod (11), and the position of crossbeam (3) gap socket screw rod (11) offers the internal screw thread being meshed with screw rod (11), institute The lower gap for stating screw rod (11) is socketed with gag lever post (12), and one end of the gag lever post (12) is welded on rectangle sliding slot (10) On inner wall.

3. a kind of adjustable limit for width height limiter of highway bridge according to claim 1, which is characterized in that the column (1) lower end side close to each other is welded with two fixed blocks (2), is rotatablely connected between two fixed blocks (2) limited The upper and lower ends of bit field (14), the position limiting fence (14) are welded with pin shaft (13), and pin shaft (13) clearance fit is in fixed block (2) center, there are two slide bar (15), the slide bars (15) for one end clearance fit of the position limiting fence (14) far from fixed block (2) One end far from position limiting fence (14) is fixedly connected with railing (16), and railing (16) is placed vertically.

4. a kind of adjustable limit for width height limiter of highway bridge according to claim 1, which is characterized in that the crossbeam (3) reflection plaster is posted on.

5. a kind of adjustable limit for width height limiter of highway bridge according to claim 2, which is characterized in that the screw rod (11) upper end is through overarm (4) and extends in shield (5), and the upper end interference fit of the screw rod (11) has gear (7), The upper end of screw rod (11) in the column (1) of described overarm (4) left end is welded on the output shaft of servo motor (6).

6. a kind of adjustable limit for width height limiter of highway bridge according to claim 1, which is characterized in that the crossbeam (3) not in the same horizontal line with the plotted of fixed block (2).