CN209760084U - Two-stage height limiting protection system for tunnel entrance - Google Patents

Abstract

The utility model discloses a tunnel portal's two-stage limit for height protection system, including the road surface, the right side at road surface top is provided with the tunnel body, and the left side at road surface top is provided with one-level protector. The utility model discloses a set up one-level protector and second grade protector, one-level protector can go to the tunnel before the super high vehicle, measure the vehicle height through infrared emitter, can send out police dispatch newspaper and prompt tone to the super high vehicle, thereby certain warning is carried out to the going of vehicle, after super high vehicle crosses one-level protector, can strike the steel sheet of downward salient, the inside extrusion hydraulic damper of steel sheet, make the vehicle obtain certain buffer distance under the damping action, and then the safety of vehicle has been guaranteed, make the tunnel can not receive the damage, through the limit for height protection design in two stages, can effectively reduce the occurence of failure probability, the maximize avoided scrapping of vehicle, personnel's damage and the damage in tunnel.

Description

A Two-Stage Height Limit Protection System for Tunnel Entrance

technical field

The utility model relates to the technical field of traffic facilities, in particular to a two-stage height-limiting protection system for tunnel entrances.

Background technique

A tunnel is an engineering building buried in the ground, and it is a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, and mine tunnels. The structure of the tunnel includes two parts: the main building and auxiliary equipment. , emergency communication and waterproof and drainage facilities, and special ventilation and lighting equipment for long tunnels.

In the existing technology, when the tunnel is being built, it is necessary to add some height-limiting measures at the entrance, such as height-limiting signs, height-limiting poles, etc., to prevent super-high vehicles from entering the tunnel and causing damage to itself and the tunnel. However, this method is It is impossible to fundamentally effectively limit the probability of accidents, and it is impossible to provide timely protection and avoid accidents for super-high vehicles, which will cause scrapping of vehicles, injury of personnel and damage of tunnels in severe cases, resulting in immeasurable losses Therefore, we propose a two-stage height limit protection system for tunnel entrances to solve the problems raised in the above-mentioned background technology.

Utility model content

The purpose of this utility model is to provide a two-stage height limit protection system for tunnel entrances to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a two-stage height limit protection system for tunnel entrances, including a road surface, the right side of the top of the road surface is provided with a tunnel body, and the left side of the road surface top is provided with a first-stage The protection device, the primary protection device includes a support rod, the top of the support rod is fixedly connected to the control box, the bottom of the left side of the control box is fixedly installed with an infrared emitter, and the top of the left side of the control box is fixedly installed There is an alarm flashing light, an alarm is fixedly installed on the right side of the top of the control box, and a secondary protection device is provided on the top of the road surface and on the left side of the tunnel body. The secondary protection device includes four corbel columns, four The top of each corbel column is fixedly connected by a height-limiting top block, and the bottom of the height-limiting top block is provided with a groove, and the left and right sides on the inner wall of the groove are fixedly connected with a fixing plate, and the inside of the groove and A steel plate is arranged between the two fixing plates, the bottom of the steel plate runs through the groove and extends to the outside, the front and rear sides of the steel plate inside the groove are fixedly connected with limit sliders, and the height limit top block corresponds to limit The position of the position slider is provided with a limit chute used in conjunction with it. The right side of the steel plate is fixedly connected with a hydraulic damper, and the side of the hydraulic damper away from the steel plate is fixedly connected with the fixed plate on the right side. A return spring is fixedly connected to the left side of the steel plate, and the end of the return spring away from the steel plate is fixedly connected to the fixed plate on the left side.

Preferably, the bottom end of the support rod is fixedly connected to the top of the road surface, and the bottom end of the corbel column is fixedly connected to the top of the road surface.

Preferably, the top of the control box and the left side corresponding to the alarm are fixedly connected with a loudspeaker through a support frame.

Preferably, both the top and the bottom of the limiting slider are provided with balls, and the side of the ball away from the limiting slider is in contact with the inner wall of the limiting chute.

Preferably, reinforcing ribs are fixedly connected to the top of the road surface and corresponding to the front, rear and left and right sides of the corbel column, and the side of the reinforcing rib close to the corbel column is fixedly connected to the corbel column.

Preferably, the distance between the primary protection device and the secondary protection device is 100m, and the length of the secondary protection device is about 30m.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. The utility model is equipped with a primary protective device and a secondary protective device. The primary protective device can measure the height of the vehicle through an infrared transmitter before the super-high vehicle travels to the tunnel, and an alarm and prompt will be issued for the super-high vehicle Sound, so as to give a certain warning to the driving of the vehicle. When the super-high vehicle passes the first-level protective device, it will hit the downward protruding steel plate, and the steel plate will squeeze the hydraulic damper inward, and the vehicle will get a certain buffer distance under the damping effect. , thereby ensuring the safety of the vehicle, so that the tunnel will not be damaged. Through the two-stage height limit protection design, the probability of accidents can be effectively reduced, and the scrapping of vehicles, personnel injury and tunnel damage can be avoided to the greatest extent.

2. The utility model can effectively amplify the alarm sound from the alarm by setting the support frame and the loudspeaker, so as to improve the warning degree to the driver of the super-high vehicle. By setting the ball, the limit slider is reduced. When moving in the limit chute, the friction between its surface and the inner wall of the limit chute effectively improves the service life of the device, and the fixing degree between the corbel column and the road is strengthened by setting the reinforcing rib to prevent two After the first-grade protective device is hit, the corbel column is broken or falls off the ground due to excessive force.

Description of drawings

Fig. 1 is the structural sectional view of the utility model front view;

Fig. 2 is the structural sectional view of side view of the utility model;

Fig. 3 is a structural schematic diagram of a top view of the utility model.

In the figure: 1 road surface, 2 tunnel body, 3 primary protection device, 31 support rod, 32 control box, 33 infrared transmitter, 34 alarm flashlight, 35 alarm, 36 support frame, 37 loudspeaker, 4 secondary protection device, 41 corbel column, 42 height-limiting top block, 43 groove, 44 fixed plate, 45 steel plate, 46 limit slider, 47 limit chute, 48 hydraulic damper, 49 return spring, 410 ball, 411 Ribs.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-3, a two-stage height limit protection system for tunnel entrances, including a road surface 1, a tunnel body 2 is provided on the right side of the top of the road surface 1, and a primary protection device 3 is provided on the left side of the top of the road surface 1. Protective device 3 comprises support rod 31, and the bottom of support rod 31 is fixedly connected with the top of road surface 1, and the top of support rod 31 is fixedly connected with control box 32, and the bottom of control box 32 left side is fixedly installed with infrared transmitter 33, controls The top on the left side of the box 32 is fixedly equipped with an alarm flashlight 34, the right side of the control box 32 top is fixedly equipped with an alarm 35, and the left side of the control box 32 top and corresponding to the alarm 35 is fixedly connected with a loudspeaker 37 by a support frame 36 , the top of the road surface 1 and the left side of the tunnel body 2 are provided with a secondary protection device 4, the secondary protection device 4 includes four corbel columns 41, the bottom ends of the corbel columns 41 are fixedly connected to the top of the road surface 1, and the road surface 1 The top and corresponding to the front and rear sides of the corbel column 41 and the left and right sides are all fixedly connected with reinforcing ribs 411, and the side of the reinforcing rib 411 near the corbel column 41 is fixedly connected with the corbel column 41, and the tops of the four corbel columns 41 pass The height-limiting top block 42 is fixedly connected, and the bottom of the height-limiting top block 42 is provided with a groove 43, and the left and right sides on the inner wall of the groove 43 are fixedly connected with a fixed plate 44, and the inside of the groove 43 is located between the two fixed plates 44 A steel plate 45 is arranged between them, the bottom of the steel plate 45 runs through the groove 43 and extends to the outside, the front and rear sides of the steel plate 45 inside the groove 43 are fixedly connected with the limit slider 46, and the height limit top block 42 corresponds to the limit slider The position of 46 is provided with the limit chute 47 that cooperates with it, and the top and the bottom of limit slide 46 are all provided with ball 410, and ball 410 is away from the side of limit slide 46 and the inner wall of limit chute 47 mutually. contact, the right side of the steel plate 45 is fixedly connected with a hydraulic damper 48, and the side of the hydraulic damper 48 away from the steel plate 45 is fixedly connected with the fixed plate 44 on the right side, and the left side of the steel plate 45 is fixedly connected with a return spring 49. One end of the position spring away from the steel plate 45 is fixedly connected with the fixed plate 44 on the left side, and the return spring 49 can pull the steel plate 45 back to the original position, so as to achieve the purpose of reuse, between the primary protection device 3 and the secondary protection device 4 100m apart, the length of the secondary protective device 4 is about 30m, leaving enough distance for the buffering of the vehicle, by setting the support frame 36 and the loudspeaker 37, the alarm sound that the alarm 35 sends can be effectively enlarged to improve the safety of the vehicle. The warning degree of super high vehicle driver, by arranging ball 410, has reduced the limit slider 46 when moving in the limit chute 47, the friction between its surface and the limit chute 47 inwalls has effectively improved For the service life of the device, the fixing degree between the corbel column 41 and the road surface 1 is strengthened by arranging the reinforcing rib 411, preventing the secondary protection device 4 from being broken or broken due to excessive force after the secondary protection device 4 is hit. Falling off the ground, by setting the first-level protection device 3 and the second-level protection device 4, the first-level protection device 3 can pass the infrared The line transmitter 33 measures the height of the vehicle, and an alarm and prompt sound will be issued for the super-high vehicle, so as to give a certain warning to the driving of the vehicle. When the super-high vehicle crosses the first-level protective device 3, it will hit the downward protruding steel plate 45. The steel plate 45 squeezes the hydraulic damper 48 inward, and the vehicle can obtain a certain buffer distance under the damping effect, thereby ensuring the safety of the vehicle and preventing the tunnel from being damaged. Through the two-stage height limit protection design, it can effectively reduce the The probability of accidents can be maximized to avoid the scrapping of vehicles, the injury of personnel and the damage of tunnels.

During use, the primary protection device 3 can measure the height of the vehicle by the infrared transmitter 33 before the super-high vehicle travels to the tunnel. For the super-high vehicle, the infrared transmitter 33 transmits the signal to the control box 32, and the control box 32 controls Alarm flashing light 34 sends out an alarm and simultaneously makes alarm 35 send prompt sound, thereby certain warning is carried out to the running of vehicle, after superelevation vehicle has crossed the first-level protective device 3, can bump into the steel plate 45 that protrudes downward, and steel plate 45 is in concave Sliding in the slot 43, pressing the hydraulic damper 48 inward, the vehicle can get a certain buffer distance under the damping effect, thereby ensuring the safety of the vehicle, so that the tunnel will not be damaged, and then the return spring 49 pulls the steel plate 45 back, To achieve the purpose of reuse.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a tunnel portal's two-stage limit for height protection system, includes road surface (1), its characterized in that: the right side at road surface (1) top is provided with tunnel body (2), the left side at road surface (1) top is provided with one-level protector (3), one-level protector (3) includes bracing piece (31), the top fixedly connected with control box (32) of bracing piece (31), the left bottom fixed mounting of control box (32) has infrared emitter (33), the left top fixed mounting of control box (32) has warning flash light (34), the right side fixed mounting at control box (32) top has alarm (35), the left side that road surface (1) top just is located tunnel body (2) is provided with second grade protector (4), second grade protector (4) include four bracket stand (41), limit for height kicking block (42) fixed connection is passed through on the top of four bracket stand (41), recess (43) are seted up to the bottom of limit for height kicking block (42), the left side and the right side of the inner wall of the groove (43) are fixedly connected with a fixing plate (44), a steel plate (45) is arranged in the groove (43) and between the two fixing plates (44), the bottom of the steel plate (45) penetrates through the groove (43) and extends to the outside of the groove, the front side and the rear side of the steel plate (45) positioned in the groove (43) are fixedly connected with limiting sliding blocks (46), the position of the height-limiting top block (42) corresponding to the position-limiting sliding block (46) is provided with a position-limiting sliding groove (47) matched with the height-limiting top block for use, the right side of the steel plate (45) is fixedly connected with a hydraulic damper (48), one side of the hydraulic damper (48) far away from the steel plate (45) is fixedly connected with a fixing plate (44) positioned on the right side, the left side fixedly connected with return spring (49) of steel sheet (45), return spring keeps away from the one end of steel sheet (45) and is located left fixed plate (44) fixed connection.

2. The two-stage height-limiting protection system for the tunnel entrance according to claim 1, wherein: the bottom of bracing piece (31) and the top fixed connection on road surface (1), the bottom of bracket stand (41) and the top fixed connection on road surface (1).

3. The two-stage height-limiting protection system for the tunnel entrance according to claim 1, wherein: the top of the control box (32) and the left side corresponding to the alarm (35) are fixedly connected with a loudspeaker (37) through a support frame (36).

4. The two-stage height-limiting protection system for the tunnel entrance according to claim 1, wherein: the top and the bottom of limiting sliding block (46) are both provided with balls (410), and one side of ball (410) far away from limiting sliding block (46) is in contact with the inner wall of limiting sliding groove (47).

5. The two-stage height-limiting protection system for the tunnel entrance according to claim 1, wherein: road surface (1) top just corresponds equal fixedly connected with strengthening rib (411) of both sides and left and right sides around bracket stand (41), strengthening rib (411) are close to one side and bracket stand (41) fixed connection of bracket stand (41).

6. The two-stage height-limiting protection system for the tunnel entrance according to claim 1, wherein: the distance between the primary protection device (3) and the secondary protection device (4) is 100m, and the length of the secondary protection device (4) is about 30 m.