CN215052093U

CN215052093U - Rolling type anti-collision device for road bridge

Info

Publication number: CN215052093U
Application number: CN202120812955.2U
Authority: CN
Inventors: 程立虎; 金丽凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-07
Anticipated expiration: 2031-04-20

Abstract

The utility model provides a public road bridge roof beam roll formula buffer stop. Public road bridge roof beam roll formula buffer stop includes: a base; a plurality of rolling mechanisms, it is a plurality of rolling mechanism all installs on the base, wherein arbitrary one rolling mechanism all includes: dead lever, first spring, sleeve, a plurality of ball and cylinder, the dead lever screw thread is installed the top of base, first spring housing is established on the dead lever, the bottom of first spring with base fixed connection, the sleeve cover is established on the dead lever, it is a plurality of the equal activity of ball is inlayed on the telescopic inner wall, and is a plurality of the outer wall of ball all with the dead lever contacts, the fixed cover of cylinder is established on the telescopic outer wall. The utility model provides a public road bridge roof beam roll formula buffer stop has area of contact when can reducing the vehicle striking, thereby reduces the friction and avoids the vehicle to force rapidly to stop, reducible loss and the advantage of easy access maintenance.

Description

Rolling type anti-collision device for road bridge

Technical Field

The utility model relates to a public road bridge roof beam traffic safety technical field especially relates to a public road bridge roof beam roll formula buffer stop.

Background

With the rapid development of social economy, transportation is increasingly prosperous, however, the number of times of traffic accidents is also increasingly increased, especially the traffic accidents occurring in the bridge section of the highway easily cause serious consequences, when the automobile runs on the bridge of the highway and meets the emergency accident and stops in a emergency or the speed of the automobile is too fast and scratches with the guardrail of the bridge, the automobile can impact the guardrail of the bridge and even directly impact the guardrail to turn into the river channel, and great harm is caused.

Most common highway bridge protection devices use rigid protective guards or protective guards for safety protection, however, the protection devices in the prior art cannot reduce the resistance generated when the vehicle and the bridge guardrail are scratched, so that the vehicle is rapidly and forcibly stopped, the vehicle can collide with the scratch protective guards, and the vehicle can be rapidly stopped to generate huge impact force to easily cause injury to people in the vehicle.

Therefore, it is necessary to provide a rolling type anti-collision device for road bridges to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a thereby area of contact when can reducing the vehicle striking, reduce friction avoid the vehicle to force rapidly to stop, reducible loss and convenient to overhaul maintenance's highway bridge roll formula buffer stop.

In order to solve the technical problem, the utility model provides a public road bridge roof beam roll formula buffer stop, include: a base; a plurality of rolling mechanisms, it is a plurality of rolling mechanism all installs on the base, wherein arbitrary one rolling mechanism all includes: the fixing rod is installed at the top of the base in a threaded mode, the first spring is sleeved on the fixing rod, the bottom end of the first spring is fixedly connected with the base, the sleeve is sleeved on the fixing rod, the balls are movably embedded on the inner wall of the sleeve, the outer walls of the balls are in contact with the fixing rod, and the roller is fixedly sleeved on the outer wall of the sleeve; two U-shaped splint, two the equal fixed mounting of U-shaped splint is in a plurality of on the dead lever.

Preferably, an annular groove is formed in the outer wall of the fixing rod, two accommodating grooves are formed in the inner wall of the sleeve, the accommodating grooves are internally provided with trapezoidal blocks in a sliding mode, the trapezoidal blocks are close to one another, one ends of the trapezoidal blocks extend into the annular groove respectively and are connected with the inner wall of the annular groove in a sliding mode, the accommodating grooves are far away from one side of the inner wall of the annular groove, two second springs are fixedly mounted on the inner wall of the accommodating groove, and the second springs are close to one end of the second springs respectively and are fixedly connected with the trapezoidal blocks.

Preferably, two through grooves are formed in the inner wall of the bottom of the annular groove.

Preferably, an external thread is arranged on the outer wall of the fixed rod, an internal thread hole is arranged at the top of the base, and the bottom end of the fixed rod extends into the internal thread hole and is screwed with the inner wall of the internal thread hole.

Preferably, a fixing bolt is arranged on the U-shaped clamping plate, the fixing bolt penetrates through the U-shaped clamping plate and is in threaded connection with the U-shaped clamping plate, and one end of the fixing bolt is tightly abutted to the fixing rod.

Preferably, a limiting groove is formed in the bottom of the accommodating groove, a limiting block is installed at the bottom of the trapezoidal block, and the bottom end of the limiting block extends into the limiting groove and is connected with the inner wall of the limiting groove in a sliding mode.

Preferably, a buffer mechanism is arranged on the roller, and the buffer mechanism comprises: the rubber ring fixing device comprises a plurality of buffering boxes and a plurality of rubber rings, wherein the buffering boxes are fixedly mounted in the roller, the rubber rings are fixedly sleeved on the outer wall of the roller, and a plurality of annular convex blocks are arranged on the outer wall of each rubber ring.

Compared with the prior art, the utility model provides a public road bridge roof beam roll formula buffer stop has following beneficial effect:

through the arrangement of the fixed rod, the sleeve and the balls, the roller can rotate around the fixed rod when being impacted, and meanwhile through the arrangement of the roller, the contact area between a vehicle and the roller is reduced, friction is reduced, and the vehicle is prevented from being impacted directly and the fixed rod is prevented from being stopped forcibly rapidly to cause larger damage; the fixed rod is more stable through the threaded connection of the base and the fixed rod and the arrangement of the two U-shaped clamping plates and the two fixing bolts, the first spring plays a role in supporting the sleeve when the roller is seriously impacted, and meanwhile, the first spring can prevent the sleeve and the roller from driving the two trapezoidal blocks to directly fall off from the two through grooves when the sleeve and the roller rotate; through the arrangement of the second spring, the annular groove and the through groove, the sleeve and the roller are convenient to overhaul and replace when damaged; through the setting of cushion box and rubber circle, reach when reducing the vehicle striking to dead lever and telescopic harm, reduce dead lever and telescopic loss.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a rolling type anti-collision device for a road bridge according to the present invention;

FIG. 2 is an assembled view of the rolling mechanism of FIG. 1 in a side view;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is an assembled schematic view of the rolling mechanism of FIG. 2 in a top view;

fig. 5 is a schematic structural view of a second embodiment of the rolling type road bridge collision avoidance device provided by the present invention;

FIG. 6 is a schematic assembly view of the base, the fixing lever, the buffer box, the rubber ring and the rolling mechanism shown in FIG. 5 in a side view;

fig. 7 is a schematic cross-sectional view of the buffer cassette shown in fig. 6.

Reference numbers in the figures: 1. a base; 2. fixing the rod; 3. a first spring; 4. a sleeve; 5. a ball bearing; 6. a drum; 7. an annular groove; 8. accommodating grooves; 9. a trapezoidal block; 10. a second spring; 11. a through groove; 12. a U-shaped splint; 13. a buffer box; 14. a rubber ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

First embodiment

Referring to fig. 1 to 4, in a first embodiment of the present invention, a rolling type anti-collision device for a road bridge comprises: a base 1; a plurality of rolling mechanisms, it is a plurality of rolling mechanism all installs on base 1, wherein arbitrary one rolling mechanism all includes: a fixed rod 2, a first spring 3, a sleeve 4, a plurality of balls 5 and a roller 6, wherein the fixed rod 2 is installed at the top of the base 1 in a threaded manner, the first spring 3 is sleeved on the fixed rod 2, the bottom end of the first spring 3 is fixedly connected with the base 1, the first spring 3 plays a role of supporting the sleeve 4, the sleeve 4 is sleeved on the fixed rod 2, the balls 5 are movably embedded on the inner wall of the sleeve 4, the outer walls of the balls 5 are in contact with the fixed rod 2, the roller 6 is fixedly sleeved on the outer wall of the sleeve 4, and the roller 6 drives the sleeve 4 to rotate around the fixed rod 2 through the balls 5 when being subjected to external force of vehicle impact, so that the contact area between the vehicle and the roller 6 is reduced, the friction force is reduced, and the vehicle is prevented from being forced to stop suddenly due to large resistance to cause huge loss; the two U-shaped clamping plates 12 are fixedly arranged on the fixing rods 2, the fixing rods 2 are reinforced by the two U-shaped clamping plates 12, and the roller 6 is prevented from being directly pushed to the fixing rods 2 when being impacted.

In order to make the connection between the sleeve 4 and the fixing rod 2 more stable, in this embodiment, it is preferable that an annular groove 7 is formed on an outer wall of the fixing rod 2, two receiving grooves 8 are formed on an inner wall of the sleeve 4, trapezoidal blocks 9 are slidably mounted in the two receiving grooves 8, ends of the two trapezoidal blocks 9 close to each other extend into the annular groove 7 and are slidably connected with an inner wall of the annular groove 7, two second springs 10 are fixedly mounted on an inner wall of a side of the two receiving grooves 8 far away from each other, ends of the two second springs 10 close to each other are respectively fixedly connected with the two trapezoidal blocks 9, and by the arrangement of the annular groove 7 and the first spring 3, the sleeve 4 is prevented from falling off from the fixing rod 2 and directly contacting with the base 1 to increase the friction force when the drum 6 rotates, avoiding obstructing the rotation of said drum 6.

In order to facilitate the maintenance and repair of the sleeve 4 and the drum 6, in the present embodiment, it is preferable that the inner wall of the bottom of the annular groove 7 is provided with two through grooves 11.

In order to facilitate the loading and unloading dead lever 2, in this embodiment, preferably, one end external screw thread has been seted up on the outer wall of dead lever 2, the internal thread hole has been seted up at the top of base 1, the bottom of dead lever 2 extends to the internal thread is downthehole and with the inner wall in internal thread hole closes mutually soon, needs maintain or change during dead lever 2, only need follow spin out single damage in the internal thread hole dead lever 2 avoids changing base 1 on a large scale, reduces the loss and reduces work load simultaneously.

In order to make the connection between the U-shaped clamp plate 12 and the fixing rod 2 more stable, in this embodiment, it is preferable that a fixing bolt is disposed on the U-shaped clamp plate 12, the fixing bolt penetrates through the U-shaped clamp plate 12 and is in threaded connection with the U-shaped clamp plate 12, and one end of the fixing bolt tightly abuts against the fixing rod 2.

In order to facilitate the dead lever 2 can run through smoothly sleeve 4 makes dead lever 2 can not drive moving down the in-process of moving down trapezoidal piece 9 moves down, and avoids damaging trapezoidal piece 9, in this embodiment, preferably, the spacing groove has been seted up to holding tank 8's bottom, the stopper is installed to trapezoidal piece 9's bottom, the bottom of stopper extend to the spacing inslot and with the inner wall sliding connection of spacing groove.

In this embodiment:

when the rolling type anti-collision device for the road bridge provided by the utility model is used, firstly, the base 1 is fixedly arranged at a required position, when the device is impacted, the roller 6 is firstly impacted to generate a certain deformation, and the roller 6 drives the sleeve 4 to rotate around the fixed rod 2, wherein a plurality of balls 5 embedded on the inner wall of the sleeve 4 rotate around the fixed rod 2, one ends of the two trapezoidal blocks 9 which are close to each other slide in the annular groove 7 respectively, simultaneously, the first spring 3 is extruded and compressed, the roller 6 reduces the impact force between the vehicle and the sleeve 4 and the fixed rod 2, simultaneously, the contact area between the roller 6 and the vehicle is smaller than that of the traditional guard fence, the friction between the out-of-control vehicle and the roller 6 is reduced, the vehicle is decelerated forwards to avoid direct and forced stop rapidly, and when the roller 6 is damaged, the two fixed bolts are unscrewed and the fixed rod 2 is rotated, make dead lever 2 and internal thread hole disconnect from each other, rotate dead lever 2 again for two trapezoidal blocks 9 aim at two and lead to groove 11, rebound dead lever 2 again, make two trapezoidal blocks 9 follow two and lead to groove 11 roll-off, then dead lever 2 and sleeve 4 disconnect from each other, can dismantle sleeve 4 and cylinder 6 and get off and can maintain or change sleeve 4 and cylinder 6.

through the arrangement of the fixed rod 2, the sleeve 4 and the ball 5, the roller 6 can rotate around the fixed rod 2 when being impacted, and meanwhile, through the arrangement of the roller 6, the contact area between a vehicle and the roller 6 is reduced, friction is reduced, and the vehicle is prevented from being impacted directly on the fixed rod 2 to stop forcibly rapidly to cause larger damage; through the threaded connection between the base 1 and the fixed rod 2 and the arrangement of the two U-shaped clamping plates 12 and the two fixing bolts, the fixed rod 2 is more stable, the first spring 3 plays a role in supporting the sleeve 4 when the roller 6 is seriously impacted, and meanwhile, the first spring 3 can prevent the sleeve 4 and the roller 6 from driving the two trapezoidal blocks 9 to directly fall off from the two through grooves 11 when rotating; through the arrangement of the second spring 10, the annular groove 7 and the through groove 11, the sleeve 4 and the roller 6 are convenient to repair and replace when damaged.

Second embodiment:

based on a rolling type anti-collision device for a road bridge provided by a first embodiment of the application, a second embodiment of the application provides another rolling type anti-collision device for a road bridge. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.

Referring to fig. 5 to 7, the rolling type anti-collision device for a road bridge further includes a buffer mechanism disposed on the roller 6, and the buffer mechanism includes: a plurality of buffer boxes 13 and rubber ring 14, it is a plurality of the equal fixed mounting of buffer box 13 is in the cylinder 6, the fixed cover of rubber ring 14 is established on the outer wall of cylinder 6, it is through a plurality of buffer box 13 receives the striking and crumples the absorption impact energy, avoids the vehicle direct impact sleeve 4 with dead lever 2, be provided with a plurality of cyclic annular lugs on the outer wall of rubber ring 14, it is a plurality of cyclic annular protruding is in cylinder 6 receives at first when striking with the vehicle contact, reduce area of contact, reduce the friction.

In this embodiment:

when cylinder 6 received the vehicle striking, the rubber circle 14 that fixed cover was established on the 6 outer walls of cylinder at first with the vehicle contact, the cyclic annular lug on the rubber circle 14 reduces the area of contact with the vehicle simultaneously, reduce the friction, make the vehicle slow down to advance, when cylinder 6 takes place deformation, a plurality of buffers 13 in the cylinder 6 receive the compression and take place deformation, it reduces the impact of vehicle to sleeve 4 and dead lever 2 to burst absorption impact energy through a plurality of buffers 13, reduce the loss of sleeve 4 and dead lever 2.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a road bridge roll formula buffer stop which characterized in that includes:

a base;

a plurality of rolling mechanisms, it is a plurality of rolling mechanism all installs on the base, wherein arbitrary one rolling mechanism all includes: the fixing rod is installed at the top of the base in a threaded mode, the first spring is sleeved on the fixing rod, the bottom end of the first spring is fixedly connected with the base, the sleeve is sleeved on the fixing rod, the balls are movably embedded on the inner wall of the sleeve, the outer walls of the balls are in contact with the fixing rod, and the roller is fixedly sleeved on the outer wall of the sleeve;

two U-shaped splint, two the equal fixed mounting of U-shaped splint is in a plurality of on the dead lever.

2. The rolling type anti-collision device for the road bridge according to claim 1, wherein an annular groove is formed in an outer wall of the fixing rod, two accommodating grooves are formed in an inner wall of the sleeve, trapezoidal blocks are slidably mounted in the two accommodating grooves, ends, close to each other, of the two trapezoidal blocks extend into the annular groove and are slidably connected with the inner wall of the annular groove, two second springs are fixedly mounted on an inner wall, far away from each other, of one side of each of the two accommodating grooves, and ends, close to each other, of the two second springs are fixedly connected with the two trapezoidal blocks.

3. The road bridge rolling type anti-collision device according to claim 2, wherein two through grooves are formed in the inner wall of the bottom of the annular groove.

4. The rolling type road bridge collision avoidance device according to claim 1, wherein the outer wall of the fixing rod is provided with an external thread at one end, the top of the base is provided with an internal thread hole, and the bottom end of the fixing rod extends into the internal thread hole and is screwed with the inner wall of the internal thread hole.

5. The rolling type anti-collision device for road bridges as claimed in claim 1, wherein a fixing bolt is arranged on the U-shaped clamping plate, the fixing bolt penetrates through the U-shaped clamping plate and is in threaded connection with the U-shaped clamping plate, and one end of the fixing bolt tightly abuts against the fixing rod.

6. The road bridge rolling type anti-collision device according to claim 2, wherein a limiting groove is formed in the bottom of the accommodating groove, a limiting block is mounted at the bottom of the trapezoidal block, and the bottom end of the limiting block extends into the limiting groove and is in sliding connection with the inner wall of the limiting groove.

7. The rolling type anti-collision device for road bridges according to claim 1, wherein a buffer mechanism is arranged on the roller, and the buffer mechanism comprises: the rubber ring fixing device comprises a plurality of buffering boxes and a plurality of rubber rings, wherein the buffering boxes are fixedly mounted in the roller, the rubber rings are fixedly sleeved on the outer wall of the roller, and a plurality of annular convex blocks are arranged on the outer wall of each rubber ring.