CN220352679U - Lifting height limiting frame - Google Patents

Abstract

The utility model discloses a lifting type height limiting frame which comprises two mutually symmetrical supporting frames, wherein lifting columns are vertically arranged in the two supporting frames respectively, the top of each lifting column is horizontally and fixedly connected with a supporting plate, the top of each supporting plate is horizontally and rotatably provided with a hollow height limiting rod, two sides of each hollow height limiting rod are horizontally and movably embedded with a retaining plate, the bottom of each hollow height limiting rod is vertically and movably embedded with a limiting block, the top of each supporting plate is provided with a limiting groove, the two hollow height limiting rods are abutted against each other, a winding drum is rotatably arranged in each supporting plate, and the same elastic belt is wound between the two winding drums. According to the utility model, the rotatable hollow height limiting rod is arranged, when the ultrahigh vehicle impacts the retaining plate, the retaining plate moves into the hollow height limiting rod, so that the limiting block is separated from the limiting groove, the hollow height limiting rod rotates in the vehicle running direction, and when the hollow height limiting rod rotates, the elastic band between the two winding drums is pulled out, and the vehicle is decelerated and intercepted, so that a certain buffer time is given to a driver.

Description

Lifting height limiting frame

Technical Field

The utility model relates to the technical field of road facilities, in particular to a lifting type height limiting frame.

Background

The limit for height frame leans on frame itself to intercept the vehicle, limit for height frame mainly used bridge, culvert, tunnel entrance's portal frame, generally be steel construction welding forms, plays the effect of protection bridge, culvert, tunnel, has the signboard on, marks limited height meter number for the suggestion vehicle in the past, in case the vehicle bumps with limit for height frame, will lead to vehicle and limit for height frame impaired, causes loss of property, when the speed of a motor vehicle is too fast, still can exist the condition appearance of casualties.

The prior patent publication number is: CN219033028U, entitled "a hydraulic lifting height limiting rod", comprising two supporting frames, and a fixing plate welded on top of each of said supporting frames; the inner side of the upper end of the fixed plate is fixedly provided with a mounting shell, and the inner side of the mounting shell is movably connected with a limiting overhead fixed frame; a chute is formed in the height limiting frame; according to the utility model, when an ultrahigh vehicle collides with the height-limiting frame, the height-limiting frame beams slide in the sliding grooves through sliding shafts at two ends, and the sliding grooves are obliquely arranged, so that the side upper parts of the height-limiting frame beams move, the height-limiting gap between the height-limiting frame beams and the vehicle is improved, a buffer effect is provided for the vehicle, and the situation that the height-limiting frame and the vehicle are excessively damaged and casualties caused by direct collision is avoided.

In the prior art, the sliding cross beam is arranged, so that damage caused when the ultrahigh vehicle directly collides with the height limiting frame is reduced, and when the speed of the ultrahigh vehicle is too high, the ultrahigh vehicle is difficult to decelerate in time, and the risk of secondary collision is still caused.

Disclosure of Invention

The utility model aims to provide a lifting type height limiting frame, which aims to solve the defects in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a lifting type height-limiting frame, includes two support frames of mutual symmetry, two respectively vertically install the lift post in the support frame, the horizontal fixedly connected with support board in lift post top, support board top level rotates and installs cavity height-limiting pole, support frame one side is seted up the logical groove with cavity height-limiting pole range looks adaptation, each level activity in cavity height-limiting pole both sides has inlayed the butt plate, the gear is installed in the interior level rotation of cavity height-limiting pole, the inboard level fixedly connected with of butt plate and the first rack of gear engaged with, the vertical activity in cavity height-limiting pole bottom has inlayed the stopper, the vertical fixedly connected with in stopper top and the second rack of gear engaged with, the spacing groove with stopper looks adaptation is seted up at support board top, two cavity height-limiting pole offsets, and its inside each rotates and installs the reel, two the winding has same elastic band between the reel.

Preferably, the two sides of the supporting frame are respectively fixedly connected with inclined supporting columns.

Preferably, limiting plates are fixedly connected to two sides of the supporting frame respectively, and the limiting plates are located on two sides of the through groove.

Preferably, the end surfaces of the two hollow height limiting rods, which are abutted against each other, are respectively chamfer surfaces with opposite directions.

Preferably, a spring is horizontally and fixedly connected between the two retaining plates in the same hollow height limiting rod.

Preferably, a reflecting plate is arranged on the outer side of the resisting plate.

The utility model provides a lifting type height limiting frame. The beneficial effects are as follows:

this over-and-under type limit for height pole, through being equipped with rotatable cavity limit for height pole, when the superelevation vehicle strikes the board of keeping out, the board of keeping out moves in to cavity limit for height pole, first rack moves in the horizontal direction, and drive the second rack through first gear and upwards move, and then make the stopper break away from the spacing groove, cavity limit for height pole rotates to vehicle travel direction, when cavity limit for height pole rotates, the terminal surface separation that two cavity limit for height poles offset, elastic webbing between two reels is pulled out, and carry out the speed reduction interception to the vehicle, when making the vehicle that surpasss limit for height strikes limit for height, give the driver certain buffering time, and help the vehicle to slow down, greatly reduced the damage that causes both when vehicle and limit for height are collided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a lifting height-limiting frame according to the present utility model;

FIG. 2 is a schematic diagram showing the connection of a lifting column and a support plate in a lifting type according to the present utility model;

FIG. 3 is a schematic diagram showing the connection of a support plate and a hollow height limiting rod in a lifting height limiting frame;

fig. 4 is an enlarged view of a position a in a lifting height limiting frame according to the present utility model.

Legend description:

1. a support frame; 2. lifting columns; 3. a bearing plate; 4. a hollow height limiting rod; 5. a retaining plate; 6. a gear; 7. a first rack; 8. a limiting block; 9. a second rack; 10. a limit groove; 11. a reel; 12. an elastic band; 13. a through groove; 14. a diagonal brace; 15. a limiting plate; 16. a spring; 17. and a light reflecting plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, a lifting type height limiting frame comprises two supporting frames 1 which are symmetrical with each other, lifting columns 2 are vertically installed in the two supporting frames 1 respectively, a supporting plate 3 is horizontally and fixedly connected to the top of each lifting column 2, a hollow height limiting rod 4 is installed at the top of each supporting plate 3 in a horizontally rotating mode, the height of the hollow height limiting rod 4 can be changed by adjusting the height of the lifting columns 2, through grooves 13 which are matched with the movable range of the hollow height limiting rod 4 are formed in one side of the supporting frame 1, a retaining plate 5 is embedded in each of two sides of the hollow height limiting rod 4 in a horizontally movable mode, a gear 6 is installed in the hollow height limiting rod 4 in a horizontally rotating mode, a first rack 7 which is meshed with the gear 6 is fixedly connected to the inner side of each retaining plate 5 in a horizontally movable mode, a limiting block 8 is embedded in the bottom of the hollow height limiting rod 4 in a vertically movable mode, a second rack 9 which is meshed with the gear 6 is fixedly connected to the top of each limiting block 8, when an ultrahigh vehicle hits against the retaining plate 5, the retaining plate 5 moves towards the hollow height limiting rod 4, the first rack 7 moves in the horizontal direction, the gear 6 is driven by the second rack 10 in the horizontal direction, the two racks are separated from the hollow height limiting rods 11, the two winding drums 11 rotate towards the hollow winding drums 11, and the winding drums 12 rotate towards the hollow winding drums 4, and the winding drums 12 rotate around the hollow height limiting rods, and the winding drums are separated from each other in the hollow height limiting rod 4.

In a further technical scheme of the utility model, the two sides of the support frame 1 are respectively fixedly connected with the diagonal brace 14, and the diagonal brace 14 can prevent the support frame 1 from tilting to the two sides.

In a further technical scheme of the utility model, the two sides of the support frame 1 are respectively fixedly connected with the limiting plates 15, the limiting plates 15 are positioned at the two sides of the through groove 13, the limiting plates 15 prevent the hollow height limiting rod 4 from over-rotating after being impacted, and the stability of the height limiting frame is improved.

In a further technical scheme of the utility model, the opposite end surfaces of the two hollow height limiting rods 4 are respectively opposite chamfer surfaces, and the chamfer surfaces can avoid collision of the end surfaces of the two opposite hollow height limiting rods 4 when the two hollow height limiting rods 4 rotate, so that the influence on the rotation of the hollow height limiting rods 4 is reduced.

In a further technical scheme of the utility model, the spring 16 is horizontally and fixedly connected between the two retaining plates 5 in the same hollow height limiting rod 4, and the spring 16 can enable the retaining plates 5 to have certain buffer when the vehicle collides, and simultaneously reduce the risk that the retaining plates 5 separate from the limiting blocks 8 and the limiting grooves 10 due to unexpected movement.

In a further technical scheme of the utility model, the reflecting plate 17 is arranged on the outer side of the resisting plate 5, and the reflecting plate 17 can promote the warning effect of the height limiting frame on the vehicle.

When the vehicle height limiting device is used, the supporting frames 1 are fixed on two sides of a road, the two side supporting plates 5 are opposite to vehicles running in and out, when an ultrahigh vehicle impacts the supporting plates 5, the supporting plates 5 move into the hollow height limiting rods 4, the first racks 7 move in the horizontal direction and drive the second racks 9 to move upwards through the first gears 6, the limiting blocks 8 are separated from the limiting grooves 10, the hollow height limiting rods 4 rotate in the running direction of the vehicle, when the hollow height limiting rods 4 rotate, the end faces, abutted against the two hollow height limiting rods 4, are separated, the elastic bands 12 between the two end faces are pulled out from the winding drums 11 and are used for decelerating and intercepting the vehicle, when the vehicle exceeding the height limit impacts the height limiting frames, a certain buffer time is given to a driver, the vehicle is helped to decelerate, and damage to the vehicle and the height limiting frames is greatly reduced.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides a lift-type height-limiting frame, includes two mutual symmetrical support frame (1), its characterized in that:

the lifting support comprises two supporting frames (1), wherein lifting columns (2) are vertically arranged in the two supporting frames (1), a supporting plate (3) is horizontally and fixedly connected to the top of each lifting column (2), a hollow height limiting rod (4) is horizontally and rotatably arranged at the top of each supporting plate (3), a through groove (13) which is matched with the movable range of the hollow height limiting rod (4) is formed in one side of each supporting frame (1), a retaining plate (5) is horizontally and movably embedded in each side of each hollow height limiting rod (4), a gear (6) is horizontally and rotatably arranged in each hollow height limiting rod (4), a first rack (7) which is meshed with the gear (6) is fixedly connected to the inner side of each retaining plate (5), a limiting block (8) is vertically and movably embedded in the bottom of each hollow height limiting rod (4), a second rack (9) which is meshed with the gear (6) is vertically and fixedly connected to the top of each limiting plate (8), and a limiting groove (10) which is matched with the limiting block (8) is formed in the top of each supporting plate (3);

the two hollow height limiting rods (4) are abutted against each other, the inside of each hollow height limiting rod is rotatably provided with a winding drum (11), and the same elastic band (12) is wound between the two winding drums (11).

2. A lifting height limiting frame according to claim 1, wherein the two sides of the supporting frame (1) are fixedly connected with diagonal braces (14) respectively.

3. The lifting height limiting frame according to claim 1, wherein limiting plates (15) are fixedly connected to two sides of the supporting frame (1), and the limiting plates (15) are located on two sides of the through groove (13).

4. A lifting height-limiting frame according to claim 1, wherein the end surfaces of the two hollow height-limiting rods (4) which are abutted against each other are respectively opposite chamfer surfaces.

5. A lifting height-limiting frame according to claim 1, characterized in that a spring (16) is fixedly connected horizontally between two abutment plates (5) in the same hollow height-limiting rod (4).

6. Lifting height-limiting frame according to claim 1, characterized in that the outside of the abutment plate (5) is provided with a reflector (17).