CN214783480U

CN214783480U - Highway bridge is with adjustable limit for width limit for height device

Info

Publication number: CN214783480U
Application number: CN202121181949.8U
Authority: CN
Inventors: 窦凤英; 胡海霞; 石周
Original assignee: Jinan Yongchang Road And Bridge Engineering Co ltd
Current assignee: Jinan Yongchang Road And Bridge Engineering Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-19
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to a technical field of public road bridge roof beam discloses a public road bridge roof beam is with adjustable width limit height device, it includes the portal frame, be provided with two limit width poles in the portal frame, two limit width poles and portal frame sliding connection, be provided with the limit height pole between two limit width poles, the limit height pole includes first pipe and second pipe, the one end of first pipe insert in the second pipe and with second pipe sliding connection, be provided with coupling assembling on the portal frame, coupling assembling is used for keeping away from the one end of limit width pole to the second pipe and connects. This application is through setting up the portal frame, the limit for width pole, first pipe, second pipe and coupling assembling, to adjustable limit for width limit for height device regulation back, coupling assembling links together the one end that the limit for width pole was kept away from to the second pipe with the top of portal frame, make coupling assembling apply for the second pipe keep away from the ascending pulling force of limit for width pole one end, reduce the second pipe and keep away from the great damage to the second pipe of limit for width pole one end shearing force that receives, increase the life of adjustable limit for width limit for height device.

Description

Highway bridge is with adjustable limit for width limit for height device

Technical Field

The application relates to the technical field of highway bridges, in particular to an adjustable width and height limiting device for a highway bridge.

Background

The road bridge width and height limiting device is used for limiting vehicles which are too wide and too high to pass through. The width and height limiting device plays a role in protecting roads and bridges.

In the related art, for example, chinese utility model patent with publication number CN212641287U discloses an adjustable width and height limiting device for highway bridges, which comprises two bases respectively arranged at both sides of a road, two width limiting rods vertically mounted on the bases, and a height limiting rod horizontally mounted between the two width limiting rods, wherein the bases are fixed in the ground, the width limiting rods comprise a vertical cylinder and a lifting rod connected with the vertical cylinder in a sliding manner in the vertical direction, and the lower end of the vertical cylinder is connected with the bases in a sliding manner along the width direction of the road; the height limiting rod comprises a cross rod and a telescopic rod connected with the cross rod in a sliding mode in the length direction, one end, far away from the telescopic rod, of the cross rod and one end, far away from the cross rod, of the telescopic rod are respectively connected with the upper ends of the two lifting rods; the base is internally provided with a width limiting adjusting piece, and the vertical cylinder is internally provided with a height limiting adjusting piece. The cross rod is close to the first spacing ring of one end inner wall fixedly connected with of telescopic link, the telescopic link set up in fixedly connected with second spacing ring on the one end lateral wall in the cross rod, the internal diameter of first spacing ring is less than the external diameter of second spacing ring, the inner wall of first spacing ring with the outer wall of telescopic link cooperation of sliding. The width and height adjustable device has the function of adjusting the width and height, and is convenient for large emergency vehicles to pass through.

To the correlation technique among the above-mentioned, the inventor thinks that when first spacing ring contradicts with the second spacing ring, because the self gravity of horizontal pole and telescopic link is great, make the shearing force that the horizontal pole is close to telescopic link one end and receives great then to make the horizontal pole appear damaging easily, and then there is the short defect in life-span of the adjustable limit for width limit for height limit device for highway bridge.

SUMMERY OF THE UTILITY MODEL

In order to alleviate the short problem of public road bridge roof beam with adjustable width limit height-limiting device life-span, this application provides a public road bridge roof beam is with adjustable width limit height-limiting device.

The application provides a public road bridge roof beam is with adjustable limit for width limit for height device adopts following technical scheme:

an adjustable width and height limiting device for highway bridges comprises a portal frame, wherein the portal frame is arranged perpendicular to the driving direction of vehicles on a highway, two width limiting rods are arranged in the portal frame, the two width limiting rods are vertically arranged, the two width limiting rods are connected with the portal frame in a sliding way along the directions close to or away from each other, a height limiting rod is arranged between the two width limiting rods, the height limiting rod is horizontally arranged and comprises a first pipe and a second pipe which are coaxially arranged, one end of the first pipe is inserted into the second pipe and is connected with the second pipe in a sliding way along the length direction of the first pipe, one end of the first pipe, which is far away from the second pipe, is connected with one width limiting rod in a sliding way along the vertical direction, one end of the second pipe, which is far away from the first pipe, is connected with the other width limiting rod in a sliding way along the vertical direction, be provided with coupling assembling on the portal frame, coupling assembling is used for keeping away from the one end of limit for width pole to the second pipe and connects.

By adopting the technical scheme, when the width limit of the adjustable width and height limiting device is adjusted, the width limiting rod is slid, the width limiting rod and the portal frame slide relatively, the width limiting rod drives the first pipe and the second pipe to move, and the first pipe and the second pipe slide relatively, so that the width limit adjustment of the adjustable width and height limiting device is realized; when the height limit of adjustable limit for width limit height limit device is adjusted, slip first pipe and second pipe, first pipe and second pipe all take place relative slip with the limit for width pole that corresponds, with first pipe and second pipe with the relative position between the limit for width pole that corresponds separately good back, coupling assembling is connected portal frame and second pipe to it is great and cause the condition emergence that the second pipe damaged to reduce the second pipe and keep away from to correspond limit for width pole one end shearing force that receives, and then reaches the effect that increases adjustable limit for width limit height limit device life.

Optionally, the connecting assembly comprises a connecting pipe and a telescopic rod, the telescopic rod comprises a first telescopic rod and a second telescopic rod, the first telescopic rod is arranged in a hollow mode, the second telescopic rod is arranged coaxially with the first telescopic rod, one end of the second telescopic rod is inserted into the first telescopic rod and is connected with the first telescopic rod in a sliding mode along the length direction of the first telescopic rod, one end of the first telescopic rod, far away from the second telescopic rod, is connected with the connecting pipe in a vertical and fixed mode, one end of the second telescopic rod, far away from the first telescopic rod, is connected with the top of the portal frame in a vertical and fixed mode, the connecting pipe is coaxially sleeved outside the second pipe, a first locking piece is arranged on the first telescopic rod, and the first locking piece is used for locking the first telescopic rod.

Through adopting above-mentioned technical scheme, when the limit for height device is adjusted to adjustable limit for width limit for height, operate first locking piece earlier, then make first locking piece unblock first telescopic link, then slide first pipe and second pipe, the second pipe drives the connecting pipe motion, the connecting pipe drives first telescopic link motion, first telescopic link and second telescopic link take place relative slip, with first pipe and second pipe and the relative position relation between the limit for width pole that corresponds separately after adjusting, the first locking piece of reverse operation, first locking piece carries out the locking with first telescopic link, thereby make first telescopic link and second telescopic link apply ascending pulling force to the connecting pipe, the connecting pipe is applied ascending pulling force to the second pipe, and then it is great and produce the condition emergence of damage because of receiving the shearing force to reduce the second pipe.

Optionally, the first locking piece is a first locking bolt, the first locking bolt is arranged at one end of the first telescopic rod, which is far away from the connecting pipe, and one end of the first locking bolt, which is far away from the bolt head, is threaded into the first telescopic rod and abuts against the circumferential side surface of the second telescopic rod.

Through adopting above-mentioned technical scheme, after adjusting the limit for height of adjustable limit for width limit for height device, the one end that the bolt head was kept away from to first locking bolt supports tightly with the week side of second telescopic link to realize the locking of first telescopic link, through setting up first locking piece into first locking bolt, can reach the effect that makes things convenient for the staff to carry out the locking to first telescopic link.

Optionally, a first locking groove is formed in the circumferential side surface of the second telescopic rod, the first locking groove is arranged corresponding to the first locking bolt, the forming direction of the first locking groove is parallel to the length direction of the second telescopic rod, and the end portion, far away from the bolt head, of the first locking bolt abuts against the groove bottom of the first locking groove.

Through adopting above-mentioned technical scheme, when relative slip takes place at first telescopic link and second telescopic link, first locking bolt slides in first locking groove, then make the cooperation of first locking bolt and first locking groove lead to the slip direction of first telescopic link, it takes place to reduce first telescopic link along self circumferential direction's the condition, after adjusting the limit for height of adjustable limit for width limit height device, twist first locking bolt, the one end that first locking bolt kept away from the bolt head supports tightly with the tank bottom of first locking groove, through supporting first locking bolt and the tank bottom of first locking groove tightly, can increase the area of contact of first locking bolt and second telescopic link, thereby increase the frictional force between first locking bolt and the second telescopic link, and then increase the stability after first telescopic link is locked.

Optionally, the bottom of portal frame is provided with the base, portal frame and base fixed connection, the top surface and the highway road surface parallel and level of base set up, the spout has all been seted up at the top of base and portal frame, two the direction of seting up of spout all is on a parallel with the slip direction setting of limit for width pole, the equal fixedly connected with slider of the tip of every limit for width pole, every the equal sliding connection of slider is in the spout that corresponds.

By adopting the technical scheme, when the width limit of the adjustable width and height limiting device is adjusted, the two width limiting rods slide, the width limiting rods drive the sliding blocks on the width limiting rods to move, the sliding blocks and the corresponding sliding grooves slide relatively, and the stability of the width limiting rods during movement can be improved by arranging the base at the bottom of the portal frame and arranging the sliding grooves on the base.

Optionally, two second locking pieces are arranged on the gantry, one second locking piece locks one width limiting rod, and the other second locking piece locks the other width limiting rod.

Through adopting above-mentioned technical scheme, when adjusting adjustable width limit height-limiting device limit width, operate the second locking piece earlier, realize the unblock of limit width pole then, then slip limit width pole, relative slip takes place for limit width pole and portal frame and base, after adjusting the relative position relation between limit width pole and the portal frame, reverse operation second locking piece, second locking piece carries out the locking to the limit width pole, and then increases the stability of limit width pole, the condition that reduces the limit width pole and move because of other factors in the external world takes place.

Optionally, a waist-shaped groove is formed in the side face of the top of the gantry frame, the length direction of the waist-shaped groove is parallel to the sliding direction of the width limiting rod, the waist-shaped groove is communicated with the sliding groove in the gantry frame, the second locking piece is a second locking bolt, and one end, away from the bolt head, of the second locking bolt penetrates through the waist-shaped groove and the thread, penetrates out of the sliding block and then is abutted against the side wall of the sliding groove.

By adopting the technical scheme, when the width limiting rod slides, the second locking bolt is firstly rotated, one end of the second locking bolt, which is far away from the bolt head, is separated from the side wall of the sliding groove, then the width limiting rod is slid, the width limiting rod drives a second locking bolt to move, the second locking bolt slides in the waist-shaped groove, after the relative position between the width limiting rod and the portal frame is well adjusted, the second locking bolt is rotated reversely, one end of the second locking bolt far away from the bolt head is tightly propped against the groove wall of the chute, thereby realizing the locking of the width limiting rod, achieving the effect of facilitating the locking of the width limiting rod by the staff by setting the second locking piece as a second locking bolt, arranging the second locking bolt at the top of the portal frame, the situation that non-working personnel operate the second locking bolt can be reduced, and the effect that the width and height adjustable devices are convenient to manage is achieved.

Optionally, one end of the first tube, which is far away from the second tube, is provided with a first sliding tube, the first sliding tube is fixedly connected with the first tube, one end of the second tube, which is far away from the first tube, is provided with a second sliding tube, the second sliding tube is fixedly connected with the second tube, the first sliding tube is coaxially sleeved on the outside of a width limiting rod and is slidably connected with the width limiting rod along the length direction of the width limiting rod, the second sliding tube is coaxially sleeved on the outside of the width limiting rod and is slidably connected with the width limiting rod along the length direction of the width limiting rod, a third locking piece is arranged on the first sliding tube, the third locking piece is used for locking the first sliding tube, a fourth locking piece is arranged on the second sliding tube, and the fourth locking piece is used for locking the second sliding tube.

Through adopting above-mentioned technical scheme, when adjusting the limit for height of adjustable limit for width limit height device, carry out the unblock to first telescopic link earlier, then operate third locking piece and fourth locking piece again, make third locking piece unblock first slip pipe, fourth locking piece unblock the second slip pipe, then slip first pipe and second pipe, first pipe drives first slip pipe motion, first slip pipe takes place the relative slip with the limit for width pole that corresponds, the second pipe drives the motion of second slip pipe, the relative slip takes place for the second slip pipe and the limit for width pole that corresponds, through setting up first slip pipe and second slip pipe, can reduce the condition emergence that first pipe and second pipe kept away from the one end that the limit for width pole droops under one's circumstances on the one hand, on the other hand can increase the stability when first pipe and second pipe take place the relative slip with the limit for width pole that corresponds.

Optionally, the third locking piece is a third locking bolt, one end of the third locking bolt, which is far away from the bolt head, penetrates into the first sliding pipe and abuts against the corresponding width limiting rod, the fourth locking piece is a fourth locking bolt, and one end of the fourth locking bolt, which is far away from the bolt head, penetrates into the second sliding pipe and abuts against the corresponding width limiting rod.

By adopting the technical scheme, when the height of the adjustable width and height limiting device is adjusted, the first telescopic rod is unlocked, then a third locking bolt and a fourth locking bolt are screwed, the third locking bolt is separated from the corresponding width limiting rod, the fourth locking bolt is separated from the corresponding width limiting rod, then the first pipe and the second pipe are slid to realize the height limiting adjustment of the adjustable width and height limiting device, after the relative positions between the first pipe and the second pipe and the width limiting rod are adjusted, the third locking bolt and the fourth locking bolt are rotated reversely and are respectively abutted against the corresponding width limiting rods, thereby realizing the locking of the first pipe and the second pipe, and through setting the third locking piece as a third locking bolt and setting the fourth locking piece as a fourth locking bolt, can reach the effect that makes things convenient for the staff to carry out the locking to first slip pipe and second slip pipe.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the portal frame, the width limiting rod, the first pipe, the second pipe and the connecting assembly, after the adjustable width and height limiting device is adjusted, the connecting assembly connects one end, away from the width limiting rod, of the second pipe with the top of the portal frame, and then the connecting assembly applies upward pulling force to one end, away from the width limiting rod, of the second pipe, so that damage to the second pipe caused by large shearing force applied to one end, away from the width limiting rod, of the second pipe is reduced, and the service life of the adjustable width and height limiting device is prolonged;

2. by arranging the connecting pipe and the telescopic rods, the telescopic rods comprise a first telescopic rod and a second telescopic rod, one end of the second telescopic rod is inserted into the first telescopic rod, the second telescopic rod is fixedly connected with the top of the portal frame, the first telescopic rod is fixedly connected with the connecting pipe, a first locking piece is arranged on the first telescopic rod, after the adjustable width and height limiting device is adjusted, the first locking piece locks the first telescopic rod, the second telescopic rod exerts a pulling force on the first telescopic rod, the first telescopic rod exerts a pulling force on the connecting pipe, and the connecting pipe exerts a pulling force on the second pipe, so that the damage of the second pipe caused by a larger shearing force applied to one end, away from the width limiting rod, of the second pipe is reduced, and the service life of the adjustable width and height limiting device is prolonged;

3. through setting up first locking piece into first locking bolt, when carrying out the locking to first telescopic link, rotate first locking bolt, first locking bolt takes place relative rotation with first telescopic link, then make first locking bolt keep away from the one end screw thread of bolt head and penetrate first telescopic link, finally make first locking bolt keep away from the one end of bolt head and the week side of second telescopic link support tightly, thereby realize the locking of first telescopic link, and then reach the effect that makes things convenient for the staff to carry out the locking to first telescopic link.

Drawings

FIG. 1 is a schematic structural diagram of an adjustable width and height limiting device according to an embodiment of the present application;

fig. 2 is a cross-sectional view of an adjustable width and height limiting device according to an embodiment of the present application, mainly illustrating a connection assembly.

Description of reference numerals: 100. a gantry; 110. a top beam; 111. a chute; 112. a waist-shaped groove; 120. a support beam; 121. a base; 200. a limiting component; 210. a height limiting rod; 211. a first tube; 212. a second tube; 213. a first sliding tube; 214. a second sliding tube; 215. a third locking bolt; 216. a fourth locking bolt; 220. a width limiting rod; 221. a slider; 222. a second locking bolt; 223. a second locking groove; 224. a third locking groove; 300. a connecting assembly; 310. a telescopic rod; 311. a first telescopic rod; 312. a second telescopic rod; 313. a first locking bolt; 314. a first locking groove; 320. and (4) connecting the pipes.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a highway bridge is with adjustable limit for width limit for height device.

Referring to fig. 1, an adjustable width and height limiting device for highway bridges comprises a portal frame 100, a limiting assembly 200 and a connecting assembly 300, wherein the limiting assembly 200 is arranged in the portal frame 100, and the limiting assembly 200 is used for limiting vehicles with excessive width or height to travel to a highway on which the adjustable width and height limiting device is installed. Coupling assembling 300 sets up at the top of portal frame 100 and is connected with spacing subassembly 200, and coupling assembling 300 is used for exerting the pulling force to spacing subassembly 200, and the condition that produces the damage when reducing the shearing force that spacing subassembly 200 receives great takes place, finally reaches the effect that increases adjustable limit for width limit for height device life-span.

The portal frame 100 comprises a top beam 110 and two support beams 120, wherein the two support beams 120 are both vertically arranged, the top beam 110 is arranged on the tops of the two support beams 120, one end of the top beam 110 is fixedly connected with the top of one support beam 120, and the other end of the top beam 110 is fixedly connected with the top of the other support beam 120. One support beam 120 is disposed on one side of the road, the other support beam 120 is disposed on the other side of the road, and the plane in which the top beam 110 and the two support beams 120 are disposed is perpendicular to the direction of vehicle travel on the road. The bottoms of the two supporting beams 120 are provided with bases 121, the two supporting beams 120 are both fixedly connected with the bases 121 in a vertical mode, and the bases 121 are fixedly connected on a highway in a pre-embedded mode. In order to facilitate the vehicle to run on the road, the top surface of the base 121 is flush with the road surface.

The limiting assembly 200 comprises a height limiting rod 210 and two width limiting rods 220, wherein the two width limiting rods 220 are vertically arranged. Height limit pole 210 horizontal setting, height limit pole 210 sets up between two width limit poles 220, and height limit pole 210 is along vertical direction and two width limit poles 220 sliding connection. Two width limiting rods 220 are arranged between the two support beams 120, and the two width limiting rods 220 are slidably connected with the top beam 110 along the directions approaching to or departing from each other.

Referring to fig. 1 and 2, the height-limiting rod 210 includes a first tube 211 and a second tube 212, and the first tube 211 and the second tube 212 are coaxially disposed. One end of the first tube 211 is inserted into the second tube 212, and the first tube 211 is slidably coupled to the second tube 212 along its length. One end of the first tube 211, which is far away from the second tube 212, is slidably connected with a width limiting rod 220, and the sliding direction of the width limiting rod is vertically arranged. One end of the second tube 212 far away from the first tube 211 is connected with another width limiting rod 220 in a sliding mode, and the sliding direction of the second tube is vertically arranged.

The connection assembly 300 includes a telescopic rod 310 and a connection pipe 320, and the telescopic rod 310 includes a first telescopic rod 311 and a second telescopic rod 312. The first telescopic rod 311 is hollow, the second telescopic rod 312 is coaxial with the first telescopic rod 311, one end of the second telescopic rod 312 is inserted into the first telescopic rod 311 and is slidably connected with the first telescopic rod 311, and the sliding direction of the second telescopic rod 312 is parallel to the length direction of the first telescopic rod 311. One end of the first telescopic rod 311 far from the second telescopic rod 312 is vertically and fixedly connected with the connecting pipe 320, and one end of the second telescopic rod 312 far from the first telescopic rod 311 is vertically and fixedly connected with the middle position of the top beam 110. The connection pipe 320 is coaxially sleeved outside the second pipe 212, and when the second pipe 212 slides relative to the first pipe 211, the second pipe 212 slides relative to the connection pipe 320.

In order to lock the first telescopic rod 311, a first locking member is disposed at an end of the first telescopic rod 311 away from the connection pipe 320, and the first locking member is a first locking bolt 313. The first locking bolt 313 is arranged perpendicular to the central axis of the first telescopic rod 311, and one end of the first locking bolt 313 far away from the bolt head is threaded into the first telescopic rod 311. The second telescopic rod 312 is provided with a first locking groove 314 on the circumferential side surface, and the opening direction of the first locking groove 314 is parallel to the length direction of the second telescopic rod 312. The first locking groove 314 is provided corresponding to the first locking bolt 313, and one end of the first locking bolt 313 remote from the bolt head is located in the first locking groove 314.

When the first telescopic rod 311 slides relative to the second telescopic rod 312, the first locking bolt 313 slides in the first locking groove 314, so that the movement of the first telescopic rod 311 is guided by the cooperation of the first locking bolt 313 and the first locking groove 314. After the relative positions of the first telescopic rod 311 and the second telescopic rod 312 are adjusted, the first locking bolt 313 is screwed, and one end, far away from the bolt head, of the first locking bolt 313 abuts against the groove bottom of the first locking groove 314, so that the first telescopic rod 311 is locked.

The side of the top beam 110 facing the base 121 and the side of the base 121 facing the top beam 110 are both provided with sliding grooves 111, and the opening directions of the two sliding grooves 111 are both parallel to the length direction of the top beam 110. The top and the bottom of the two width limiting rods 220 are both fixedly connected with sliding blocks 221, and the sliding blocks 221 are slidably connected in the corresponding sliding grooves 111.

In order to lock the width limiting rod 220, a waist-shaped groove 112 is formed in the side surface of the top beam 110, the length direction of the waist-shaped groove 112 is parallel to the length direction of the top beam 110, and the waist-shaped groove 112 is communicated with the sliding groove 111. The top of each width limiting rod 220 is provided with a second locking member, which is a second locking bolt 222. One end, far away from the bolt head, of the second locking bolt 222 penetrates through the waist-shaped groove 112 and penetrates through the corresponding sliding block 221 in a threaded manner, when the width limiting rod 220 is adjusted, the width limiting rod 220 drives the second locking bolt 222 to move, the second locking bolt 222 slides in the waist-shaped groove 112, after the relative position of the width limiting rod 220 and the top beam 110 is adjusted, the second locking bolt 222 is screwed, the second locking bolt 222 and the sliding block 221 rotate relatively, finally, one end, far away from the bolt head, of the second locking bolt 222 is abutted against the groove wall of the sliding groove 111, and therefore locking of the width limiting rod 220 is achieved.

In order to increase the stability when the first tube 211 and the second tube 212 slide, a first sliding tube 213 is disposed at one end of the first tube 211 away from the second tube 212, and the central axis of the first sliding tube 213 is perpendicular to the central axis of the first tube 211. The first sliding tube 213 is fixedly connected with the first tube 211, and the first sliding tube 213 is coaxially sleeved outside the corresponding width limiting rod 220. When the first tube 211 slides relative to the corresponding width limiting rod 220, the first sliding tube 213 slides relative to the corresponding width limiting rod 220, and the first sliding tube 213 guides the sliding of the first tube 211.

One end of the second tube 212 far away from the first tube 211 is provided with a second sliding tube 214, and the central axis of the second sliding tube 214 is perpendicular to the central axis of the second tube 212. The second sliding tube 214 is fixedly connected with the second tube 212, and the second sliding tube 214 is coaxially sleeved outside the corresponding width limiting rod 220. When the second tube 212 slides relative to the corresponding width limiting rod 220, the second sliding tube 214 slides relative to the corresponding width limiting rod 220, so that the second sliding tube 214 guides the sliding direction of the second tube 212, and the stability of the first tube 211 and the second tube 212 during sliding is further improved.

In order to lock the first tube 211 and the second tube 212, a third locking member is disposed on the first sliding tube 213, and the third locking member locks the first sliding tube 213, so as to lock the first tube 211. And a fourth locking piece is arranged on the second sliding pipe 214 and locks the second sliding pipe 214, so that the second sliding pipe 212 is locked.

The third locking member is a third locking bolt 215, the third locking bolt 215 is perpendicular to the central axis of the first sliding tube 213, and one end of the third locking bolt 215, which is far away from the bolt head, is threaded into the first sliding tube 213. The first sliding tube 213 is provided with a second locking groove 223 on the circumferential side surface corresponding to the width limiting rod 220, and the opening direction of the second locking groove 223 is parallel to the length direction of the width limiting rod 220. The end of the third locking bolt 215 remote from the bolt head is located in the second locking groove 223. When the first sliding tube 213 moves, the first sliding tube 213 drives the third locking bolt 215 to move, the third locking bolt 215 slides in the second locking groove 223, after the relative position of the first sliding tube 213 and the width limiting rod 220 is adjusted, the third locking bolt 215 is screwed, one end of the third locking bolt 215, which is far away from the bolt head, abuts against the groove bottom of the second locking groove 223, and therefore locking of the first tube 211 is achieved.

The fourth locking piece is a fourth locking bolt 216, the fourth locking bolt 216 is perpendicular to the central axis of the second sliding tube 214, and one end of the fourth locking bolt 216, which is far away from the bolt head, is threaded into the second sliding tube 214. The second sliding tube 214 is provided with a third locking groove 224 on the circumferential side surface corresponding to the width limiting rod 220, and the opening direction of the third locking groove 224 is parallel to the length direction of the width limiting rod 220. The end of the fourth locking bolt 216 remote from the bolt head is located in the third locking groove 224. When the second sliding tube 214 moves, the second sliding tube 214 drives the fourth locking bolt 216 to move, the fourth locking bolt 216 slides in the third locking groove 224, after the relative position of the second sliding tube 214 and the width limiting rod 220 is adjusted, the fourth locking bolt 216 is screwed, one end, far away from the bolt head, of the fourth locking bolt 216 abuts against the groove bottom of the third locking groove 224, and then locking of the second tube 212 is achieved.

All locking pieces in this embodiment can also be inserted bars, and the one end of inserted bar penetrates simultaneously in the part that needs two relative motion of locking, can realize the locking to the part.

The implementation principle of the adjustable width and height limiting device for the highway bridge in the embodiment of the application is as follows: when the height of the adjustable width and height limiting device is adjusted, the first locking bolt 313 is firstly screwed, and then the first locking bolt 313 is separated from the second telescopic rod 312. Then, the third locking bolt 215 and the fourth locking bolt 216 are screwed again, the third locking bolt 215 is separated from the groove bottom of the second locking groove 223, and the fourth locking bolt 216 is separated from the groove bottom of the third locking groove 224. Then, the first pipe 211 and the second pipe 212 slide, and the first pipe 211 and the second pipe 212 respectively slide relative to the corresponding width limiting rods 220, so that the distance between the first pipe 211 and the second pipe 212 and the road surface is adjusted. After the relative positions of the first tube 211, the second tube 212 and the width limiting rod 220 are adjusted, the first locking bolt 313, the third locking bolt 215 and the fourth locking bolt 216 are screwed reversely, the first locking bolt 313 locks the first telescopic rod 311, the third locking bolt 215 locks the first sliding tube 213, and the fourth locking bolt 216 locks the second sliding tube 214, so that the height limitation of the adjustable width and height limiting device is adjusted.

When the width limitation of the adjustable width and height limiting device is adjusted, the second locking bolt 222 is firstly screwed, and the second locking bolt 222 unlocks the width limiting rod 220. Then, two width limiting rods 220 are slid, one width limiting rod 220 drives the first tube 211 to move, the other width limiting rod 220 drives the second tube 212 to move, the first tube 211 and the second tube 212 slide relatively, and the second tube 212 and the connecting tube 320 slide relatively. After the position of the width limiting rod 220 relative to the top beam 110 is adjusted, the second locking bolt 222 is screwed reversely, so that the second locking bolt 222 locks the width limiting rod 220, and the width limitation of the adjustable width and height limiting device is further adjusted.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a public road bridge roof beam is with adjustable limit for width limit for height device which characterized in that: the road width limiting device comprises a portal frame (100), wherein the portal frame (100) is perpendicular to the running direction of vehicles on a road, two width limiting rods (220) are arranged in the portal frame (100), the two width limiting rods (220) are vertically arranged, the two width limiting rods (220) are in sliding connection with the portal frame (100) along the directions close to or far away from each other, a height limiting rod (210) is arranged between the two width limiting rods (220), the height limiting rod (210) is horizontally arranged, the height limiting rod (210) comprises a first pipe (211) and a second pipe (212), the first pipe (211) and the second pipe (212) are coaxially arranged, one end of the first pipe (211) is inserted into the second pipe (212) and is in sliding connection with the second pipe (212) along the length direction of the first pipe, one end, far away from the second pipe (212), of the first pipe (211) is in sliding connection with one width limiting rod (220) along the vertical direction, one end, far away from the first pipe (211), of the second pipe (212) is connected with the other width limiting rod (220) in a sliding mode in the vertical direction, a connecting assembly (300) is arranged on the portal frame (100), and the connecting assembly (300) is used for connecting one end, far away from the width limiting rod (220), of the second pipe (212).

2. The adjustable width and height limiting device for the highway bridge according to claim 1, wherein: the connecting assembly (300) comprises a connecting pipe (320) and a telescopic rod (310), the telescopic rod (310) comprises a first telescopic rod (311) and a second telescopic rod (312), the first telescopic rod (311) is arranged in a hollow mode, the second telescopic rod (312) and the first telescopic rod (311) are coaxially arranged, one end of the second telescopic rod (312) is inserted into the first telescopic rod (311) and is in sliding connection with the first telescopic rod (311) along the length direction of the first telescopic rod, one end, far away from the second telescopic rod (312), of the first telescopic rod (311) is vertically and fixedly connected with the connecting pipe (320), one end, far away from the first telescopic rod (311), of the second telescopic rod (312) is vertically and fixedly connected with the top of the portal frame (100), the connecting pipe (320) is coaxially sleeved outside the second pipe (212), and a first locking piece is arranged on the first telescopic rod (311), the first locking piece is used for locking the first telescopic rod (311).

3. The adjustable width and height limiting device for the highway bridge of claim 2, wherein: the first locking piece is a first locking bolt (313), the first locking bolt (313) is arranged at one end, far away from the connecting pipe (320), of the first telescopic rod (311), and one end, far away from the bolt head, of the first locking bolt (313) penetrates into the first telescopic rod (311) in a threaded mode and abuts against the peripheral side face of the second telescopic rod (312).

4. The adjustable width and height limiting device for the highway bridge of claim 3, wherein: a first locking groove (314) is formed in the peripheral side face of the second telescopic rod (312), the first locking groove (314) is arranged corresponding to the first locking bolt (313), the forming direction of the first locking groove (314) is parallel to the length direction of the second telescopic rod (312), and the end portion, far away from the bolt head, of the first locking bolt (313) is abutted against the groove bottom of the first locking groove (314).

5. The adjustable width and height limiting device for the highway bridge according to claim 1, wherein: the bottom of portal frame (100) is provided with base (121), portal frame (100) and base (121) fixed connection, the top surface and the highway road surface parallel and level of base (121) set up, spout (111) have all been seted up at the top of base (121) and portal frame (100), two the direction of seting up of spout (111) all is on a parallel with the slip direction setting of limit width pole (220), the equal fixedly connected with slider (221) of tip of every limit width pole (220), every equal sliding connection in the spout (111) that corresponds in slider (221).

6. The adjustable width and height limiting device for the highway bridge of claim 5, wherein: two second locking pieces are arranged on the portal frame (100), one second locking piece locks one width limiting rod (220), and the other second locking piece locks the other width limiting rod (220).

7. The adjustable width and height limiting device for the highway bridge of claim 6, wherein: waist-shaped groove (112) have been seted up on the side at portal frame (100) top, the length direction of waist-shaped groove (112) is on a parallel with the slip direction setting of limit for width pole (220), spout (111) intercommunication setting on waist-shaped groove (112) and portal frame (100), the second locking piece is second locking bolt (222), the one end that the bolt head was kept away from in second locking bolt (222) passes waist-shaped groove (112) and the screw thread is worn out behind slider (221) and is supported tightly with the lateral wall of spout (111).

8. The adjustable width and height limiting device for the highway bridge according to claim 1, wherein: a first sliding pipe (213) is arranged at one end, far away from the second pipe (212), of the first pipe (211), the first sliding pipe (213) is fixedly connected with the first pipe (211), a second sliding pipe (214) is arranged at one end, far away from the first pipe (211), of the second pipe (212), the second sliding pipe (214) is fixedly connected with the second pipe (212), the first sliding pipe (213) is coaxially sleeved outside one width limiting rod (220) and is in sliding connection with the width limiting rod (220) along the length direction of the width limiting rod (220), the second sliding pipe (214) is coaxially sleeved outside the other width limiting rod (220) and is in sliding connection with the width limiting rod (220) along the length direction of the width limiting rod (220), a third locking piece is arranged on the first sliding pipe (213), the third locking piece is used for locking the first sliding pipe (213), and a fourth locking piece is arranged on the second sliding pipe (214), the fourth locking piece is used for locking the second sliding pipe (214).

9. The adjustable width and height limiting device for the highway bridge of claim 8, wherein: the third locking piece is a third locking bolt (215), one end of the third locking bolt (215) far away from the bolt head penetrates into the first sliding pipe (213) and is abutted against the corresponding width limiting rod (220), the fourth locking piece is a fourth locking bolt (216), and one end of the fourth locking bolt (216) far away from the bolt head penetrates into the second sliding pipe (214) and is abutted against the corresponding width limiting rod (220).