阅读说明：本技术 用于公路隧道的防护装置及公路隧道结构 (A protector and highway tunnel structure for highway tunnel ) 是由 李伟 王冠 刘国权 于 2021-06-04 设计创作，主要内容包括：本发明提供了一种用于公路隧道的防护装置及公路隧道结构,防护装置包括固定件、挡板结构和驱动机构；固定件嵌设于隧道内,且固定件开设有活动槽；挡板结构可活动地容置于活动槽内；驱动机构连接于挡板结构,并用于驱动挡板结构伸入或缩入活动槽。在本实施例的防护装置中,通过设置驱动机构与挡板结构的配合,可以根据实际的防护需求调节挡板结构的位置,从而实现降低车辆发生交通事故风险的效果。在本实施例的公路隧道结构中,通过设置上述防护装置,当车辆通过隧道与桥梁的交界处时,防护装置可以对车辆的形式进行保护,以避免车辆冲破桥梁护栏而发生坠落,使用安全性得以提高。(The invention provides a protective device for a highway tunnel and a highway tunnel structure, wherein the protective device comprises a fixing piece, a baffle plate structure and a driving mechanism; the fixing piece is embedded in the tunnel and provided with a movable groove; the baffle plate structure is movably accommodated in the movable groove; the driving mechanism is connected to the baffle structure and used for driving the baffle structure to extend into or retract into the movable groove. In the protector of this embodiment, through the cooperation that sets up actuating mechanism and baffle structure, can adjust the position of baffle structure according to the protection demand of reality to the realization reduces the effect that the vehicle takes place the traffic accident risk. In the highway tunnel structure of this embodiment, through setting up above-mentioned protector, when the vehicle passes through the juncture of tunnel and bridge, protector can protect the form of vehicle to avoid the vehicle to break through bridge railing and take place to fall, the safety in utilization can improve.)

1. The utility model provides a protector for highway tunnel, the fixed slot has been seted up to the inner wall in tunnel, its characterized in that includes:

the fixing piece is embedded in the fixing groove and provided with a movable groove;

the baffle plate structure is movably accommodated in the movable groove;

and the driving mechanism is connected to the baffle plate structure and is used for driving the baffle plate structure to extend into or retract into the movable groove.

2. The protective device for the road tunnel according to claim 1, wherein the baffle structure comprises an extension part and a connecting part which are connected, the extension part is arranged in a manner that the extension part is inclined from the connecting part to a direction far away from the tunnel, and the driving mechanism is used for driving the connecting part to move along the extending direction of the tunnel so as to drive the extension part to extend out of or retract into the movable groove.

3. The protection device for the road tunnel according to claim 2, wherein the baffle structure further comprises at least one rotating drum, the extending portion is provided with a first mounting groove, the extending portion is accommodated in the first mounting groove and is rotatably connected with the extending portion, and an included angle is formed between the axial direction and the horizontal direction of the rotating drum;

when the number of the rotating cylinders is multiple, the rotating cylinders are arranged in parallel and at intervals.

4. The protection device for the road tunnel according to claim 2, wherein the baffle structure further comprises at least one roller, the connecting portion is provided with a second mounting groove, the roller is accommodated in the second mounting groove and rotatably connected to the connecting portion, the axial direction of the roller is perpendicular to the extending direction of the connecting portion, and the roller is in rolling contact with the inner wall of the movable groove;

when the number of the rollers is multiple, the rollers are arranged at intervals and in parallel along the extending direction of the connecting part.

5. The protection device for the road tunnel according to claim 1, wherein the baffle structure is provided with an accommodating cavity, the driving mechanism comprises a buffering component and a power component, the buffering component is movably accommodated in the accommodating cavity and is at least partially connected to the baffle structure, and the buffering component is used for absorbing impact on the baffle structure;

the power assembly is connected to the fixing piece and used for driving the baffle structure to move.

6. The protection device for the road tunnel according to claim 5, wherein the buffer assembly comprises a connecting member, a limiting member and an elastic member, the connecting member is movably connected to the baffle structure, and the power assembly is used for driving the connecting member to move so as to drive the baffle structure to move; a buffer groove is formed in the inner wall of the accommodating cavity, at least parts of the limiting part and the elastic part are accommodated in the buffer groove, and the limiting part is connected to the baffle plate structure;

the connecting piece is provided with a limiting hole, the limiting piece is in sliding fit with the limiting hole, the length of the limiting hole is not larger than that of the limiting piece, and the elastic piece is respectively abutted against the inner wall of the buffer groove and the connecting piece and used for driving the limiting piece to move towards the direction far away from the connecting piece.

7. The protection device for the road tunnel according to claim 6, wherein the connecting member comprises a connecting member body and a pulley, the limiting hole is formed in one end of the connecting member body, the baffle structure is further provided with a sliding groove communicated with the accommodating cavity, the extending direction of the sliding groove is parallel to the moving direction of the baffle structure, the pulley is connected to the connecting member body and is in sliding fit with the sliding groove, and at least part of the power assembly is accommodated in the accommodating cavity and is used for driving the connecting member body to move.

8. The road tunnel protection device of claim 7, wherein a tooth socket is formed on one side of the connecting member body away from the pulley, the power assembly comprises a gear shaft and a driving motor, the driving motor is connected to the fixing member and is used for driving the gear shaft to rotate, and the gear shaft is accommodated in the accommodating cavity and meshed with the tooth socket.

9. The protecting device for road tunnel according to any one of claims 1 to 8, wherein the number of the fixing grooves is two, and the two fixing grooves are symmetrically arranged at two opposite sides of the tunnel; the number of the protection devices is also two, one protection device is embedded in each fixing groove, and the two protection devices are symmetrically arranged.

10. A road tunnel structure, comprising:

a bridge;

the tunnel is connected to the bridge, a fixing groove is formed in the inner wall of the tunnel, and the fixing groove is located on one side close to the bridge;

the guard of any one of claims 1 to 9, wherein the guard is embedded in the fixing groove and the drive mechanism is configured to drive the barrier structure to move in a direction from the tunnel to the bridge.

Technical Field

The invention relates to the technical field of highway tunnels, in particular to a protection device for a highway tunnel and a highway tunnel structure.

Background

The tunnel is an engineering building formed in a stratum, is a form of utilizing an underground space by human beings, can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel, a mine tunnel, a military tunnel and the like, the horizontal, longitudinal and transverse intersections between an anchorage of a suspension bridge tunnel and a highway tunnel can be mutually overlapped, mutually connected and mutually interfered, tunnel excavation has great influence on the strength of a rock mass of the anchorage of the tunnel and the reliability of the anchor of the tunnel, the highway tunnel belongs to the traffic tunnel, and the highway tunnel is a channel specially used for vehicle transportation. Along with the development of social economy and production, the appearance of a large number of expressways provides higher standards for the construction technology of the highways, and requires that the lines are straight, the gradient is moderate, and the road surface is spacious. Therefore, when a road passes through a mountain area, the conventional winding scheme is changed into a tunnel scheme.

The tunnel construction has played an important role in improving highway technical conditions, shortening driving distance, improving transport capacity and reducing traffic accidents, and at bridge joints, because the luminance is low in the tunnel and the outer layer luminance is large, drivers easily generate light adaptation phenomenon and easily cause unstable driving of the drivers, so that the traffic accidents are easily generated at the bridge joints in the tunnel, the drivers easily break through bridge guardrails and fall off when driving, and the safety is low.

Therefore, it is necessary to improve upon the above-described problems to change the present situation.

Disclosure of Invention

The invention provides a protective device for a highway tunnel and a highway tunnel structure, which are used for solving the problem that traffic accidents are easy to happen at the joint of a traditional tunnel and a bridge.

The invention provides a protective device for a highway tunnel, wherein a fixing groove is formed in the inner wall of the tunnel, and the protective device comprises:

the fixing piece is embedded in the fixing groove and provided with a movable groove;

the baffle plate structure is movably accommodated in the movable groove;

and the driving mechanism is connected to the baffle plate structure and is used for driving the baffle plate structure to extend into or retract into the movable groove.

According to one embodiment of the invention, the baffle structure comprises an extending part and a connecting part which are connected, the extending part is arranged in an inclined manner from the connecting part towards the direction far away from the tunnel, and the driving mechanism is used for driving the connecting part to move along the extending direction of the tunnel so as to drive the extending part to extend out of or retract into the movable groove.

According to an embodiment of the present invention, the baffle structure further includes at least one rotating drum, the extending portion has a first mounting groove, the extending portion is accommodated in the first mounting groove and is rotatably connected to the extending portion, and an included angle is formed between an axial direction and a horizontal direction of the rotating drum;

when the number of the rotating cylinders is multiple, the rotating cylinders are arranged in parallel and at intervals.

According to an embodiment of the invention, the baffle structure further comprises at least one roller, the connecting part is provided with a second mounting groove, the roller is accommodated in the second mounting groove and is rotatably connected to the connecting part, the axial direction of the roller is perpendicular to the extending direction of the connecting part, and the roller is in rolling contact with the inner wall of the movable groove;

when the number of the rollers is multiple, the rollers are arranged at intervals and in parallel along the extending direction of the connecting part.

According to one embodiment of the invention, the baffle structure is provided with an accommodating cavity, the driving mechanism comprises a buffer component and a power component, the buffer component is movably accommodated in the accommodating cavity and at least partially connected with the baffle structure, and the buffer component is used for absorbing impact on the baffle structure;

the power assembly is connected to the fixing piece and used for driving the baffle structure to move.

According to one embodiment of the invention, the buffer assembly comprises a connecting piece, a limiting piece and an elastic piece, the connecting piece is movably connected to the baffle structure, and the power assembly is used for driving the connecting piece to move so as to drive the baffle structure to move; a buffer groove is formed in the inner wall of the accommodating cavity, at least parts of the limiting part and the elastic part are accommodated in the buffer groove, and the limiting part is connected to the baffle plate structure;

the connecting piece is provided with a limiting hole, the limiting piece is in sliding fit with the limiting hole, the length of the limiting hole is not larger than that of the limiting piece, and the elastic piece is respectively abutted against the inner wall of the buffer groove and the connecting piece and used for driving the limiting piece to move towards the direction far away from the connecting piece.

According to one embodiment of the invention, the connecting piece comprises a connecting piece body and a pulley, the limiting hole is formed in one end of the connecting piece body, the baffle plate structure is further provided with a sliding groove communicated with the accommodating cavity, the extending direction of the sliding groove is parallel to the moving direction of the baffle plate structure, the pulley is connected to the connecting piece body and is in sliding fit with the sliding groove, and at least part of the power assembly is accommodated in the accommodating cavity and is used for driving the connecting piece body to move.

According to one embodiment of the invention, a tooth groove is formed in one side of the connecting piece body, which is far away from the pulley, the power assembly comprises a gear shaft and a driving motor, the driving motor is connected to the fixing piece and is used for driving the gear shaft to rotate, and the gear shaft is accommodated in the accommodating cavity and meshed with the tooth groove.

According to one embodiment of the invention, the number of the fixing grooves is two, and the two fixing grooves are symmetrically arranged on two opposite sides of the tunnel; the number of the protection devices is also two, one protection device is embedded in each fixing groove, and the two protection devices are symmetrically arranged.

The present invention also provides a road tunnel structure, comprising:

a bridge;

the tunnel is connected to the bridge, a fixing groove is formed in the inner wall of the tunnel, and the fixing groove is located on one side close to the bridge;

the protection device of any one of the above, the protection device inlays to be located in the fixed slot, just actuating mechanism is used for the drive baffle structure is followed the tunnel extremely the direction of bridge removes.

The embodiment of the invention has the following beneficial effects:

when the protective device is used, the driving mechanism can drive the baffle plate structure to extend out of the movable groove of the fixing piece, and when a vehicle is about to collide with the tunnel, the baffle plate structure can block the vehicle so as to reduce the risk of traffic accidents of the vehicle; in addition, when the driving mechanism drives the baffle plate structure to retract into the movable groove, the flatness of the inner wall of the tunnel can be ensured.

In the protector of this embodiment, through the cooperation that sets up actuating mechanism and baffle structure, can adjust the position of baffle structure according to the protection demand of reality to the realization reduces the effect that the vehicle takes place the traffic accident risk.

In the highway tunnel structure of this embodiment, through setting up above-mentioned protector, when the vehicle passes through the juncture of tunnel and bridge, protector can protect the form of vehicle to avoid the vehicle to break through bridge railing and take place to fall, the safety in utilization can improve.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Wherein:

fig. 1 is a schematic structural view of a road tunnel structure in an embodiment of the present invention;

FIG. 2 is an isometric view of a guard in an embodiment of the invention;

FIG. 3 is a partial cross-sectional view of a shield apparatus in an embodiment of the present invention;

FIG. 4 is a schematic view of the internal structure of the baffle structure and drive mechanism in an embodiment of the present invention;

FIG. 5 is an enlarged view of detail A of FIG. 4;

FIG. 6 is a schematic structural view of a connecting member in an embodiment of the present invention;

reference numerals:

1. a highway tunnel structure; 10. A guard; 100. A fixing member;

110. a movable groove; 200. A baffle structure; 210. An extension portion;

211. a first mounting groove; 220. A connecting portion; 221. A second mounting groove;

222. an accommodating chamber; 223. A buffer tank; 224. A chute;

230. a rotating drum; 240. A roller; 300. A drive mechanism;

310. a buffer assembly; 311. A connecting member; 3111. A connector body;

31111. a limiting hole; 31112, gullets; 3112. A pulley;

312. a limiting member; 313. An elastic member; 320. A power assembly;

321. a gear shaft; 322. A drive motor; 20. A tunnel;

201. fixing grooves; 30. A bridge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a highway tunnel structure 1, including a protection device 10, a tunnel 20 and a bridge 30, wherein the tunnel 20 is connected to the bridge 30, and the inner wall of the tunnel 20 is provided with a fixing groove 201, and the fixing groove 201 is located at a side close to the bridge 30; the protection device 10 is embedded in the fixing groove 201.

Specifically, referring to fig. 1 and fig. 2, the protection device 10 includes a fixing member 100, a baffle structure 200 and a driving mechanism 300, wherein the fixing member 100 is embedded in a fixing groove 201, and the fixing member 100 is provided with a movable groove 110; the baffle structure 200 is movably accommodated in the movable slot 110; the driving mechanism 300 is connected to the baffle structure 200 and is used for driving the baffle structure 200 to extend into or retract into the movable slot 110, and the driving mechanism 300 is used for driving the baffle structure 200 to move along the direction from the tunnel 20 to the bridge 30

When the protection device 10 of the embodiment is used, the driving mechanism 300 can drive the baffle structure 200 to extend out of the movable groove 110 of the fixing member 100, and when a vehicle is about to collide with the tunnel 20, the baffle structure 200 can block the vehicle, so as to reduce the risk of traffic accidents of the vehicle; in addition, when the driving mechanism 300 drives the baffle structure 200 to retract into the movable slot 110, the flatness of the inner wall of the tunnel 20 can be ensured.

In the protection device 10 of the present embodiment, the driving mechanism 300 is matched with the baffle structure 200, so that the position of the baffle structure 200 can be adjusted according to the actual protection requirement, and the effect of reducing the risk of traffic accidents of vehicles is achieved.

Specifically, referring to fig. 3, the baffle structure 200 includes an extension portion 210 and a connection portion 220 connected to each other, the extension portion 210 is disposed to be inclined from the connection portion 220 in a direction away from the tunnel 20, and the driving mechanism 300 is configured to drive the connection portion 220 to move along the extending direction of the tunnel 20 so as to drive the extension portion 210 to extend out of or retract into the movable slot 110.

In the present embodiment, the included angle between the extension portion 210 and the connection portion 220 is greater than 90 °, and in the extending direction along the tunnel 20, the extension portion 210 extends from the connection portion 220 toward the direction away from the tunnel 20; as shown in fig. 1, when the two connecting portions 220 are disposed opposite to each other, they are formed into a substantially horn-shaped configuration and are used to guide the movement of the vehicle so that the vehicle moves in the direction of the tunnel 20;

when the protection device 10 of the embodiment is used, the driving mechanism 300 can drive the baffle structure 200 to extend out of the movable slot 110, and make the extending portion 210 extend out of the movable slot 110, for example, when a vehicle moves along the direction of the bridge 30 from the tunnel 20, if the vehicle is about to collide the junction between the tunnel 20 and the bridge 30, the vehicle will first contact with the extending portion 210 of the baffle structure 200 and be guided by the extending portion 210, so that the vehicle can move towards the tunnel 20, thereby avoiding the vehicle from colliding the edges of the tunnel 20 and the bridge 30, or breaking the guardrail of the bridge 30 to cause traffic accidents, and the structure is simple, the using effect is good, and the driving safety is improved.

Further, the baffle structure 200 further includes at least one rotating cylinder 230, the extending portion 210 has a first mounting groove 211, and is received in the first mounting groove 211 and rotatably connected to the extending portion 210, and an included angle is formed between the axial direction and the horizontal direction of the rotating cylinder 230.

In this embodiment, the drum 230 may be perpendicular to the horizontal direction, so that when the vehicle contacts the baffle structure 200, the drum 230 may contact the surface of the vehicle and reduce friction between the baffle structure 200 and the vehicle as the vehicle moves, and at the same time, may play a role of guiding the movement of the vehicle to reduce the impact force applied when the vehicle collides with the baffle structure 200.

Referring to fig. 3, in the present embodiment, the number of the rotating drums 230 is multiple, and the rotating drums 230 are arranged in parallel and at intervals.

It can be understood that, by providing a plurality of tumblers 230, when a vehicle collides with the baffle structure 200, as many tumblers 230 as possible can be in contact with the vehicle at the same time, thereby improving the guiding and impact force transmission effects of the baffle structure 200 on the vehicle, and further achieving the effect of reducing the impact force between the vehicle and the baffle structure 200. Specifically, two, three, or more than three rotating drums 230 may be provided, and the buffering effect of the baffle structure 200 may be improved by providing a plurality of rotating drums 230.

Further, referring to fig. 4, the baffle structure 200 further includes at least one roller 240, the connecting portion 220 is provided with a second mounting groove 221, the roller 240 is accommodated in the second mounting groove 221 and rotatably connected to the connecting portion 220, an axial direction of the roller 240 is perpendicular to an extending direction of the connecting portion 220, and the roller 240 is in rolling contact with an inner wall of the movable groove 110.

From this setting, when actuating mechanism 300 orders about baffle structure 200 and removes for mounting 100, gyro wheel 240 can roll contact with the inner wall of mounting 100, not only can improve the stationarity that baffle structure 200 removed, also can reduce the friction loss between baffle structure 200 and mounting 100 simultaneously to realize improving the effect of baffle structure 200 removal smoothness.

Specifically, the roller 240 may be disposed at the top and/or the bottom of the connection portion 220, so that the guiding function of the roller 240 may be achieved, and in another embodiment, the roller 240 may also be disposed on the sidewall of the connection portion 220, so as to achieve the guiding function; in some embodiments, the roller 240 may also be disposed on the extension 210, and the axial direction of the roller 240 is perpendicular to the moving direction of the barrier structure 200.

In the present embodiment, the number of the rollers 240 is plural, and the plural rollers 240 are spaced and arranged in parallel along the extending direction of the connecting portion 220.

It can be understood that, by supporting the baffle structure 200 through the plurality of rollers 240, the smoothness of the baffle structure 200 during the moving process can be improved, and/or the friction loss between the baffle structure 200 and the fixing member 100 can be reduced, and the using effect is good. Specifically, the number of the rollers 240 may be two, three, or more, and is not limited herein.

Specifically, referring to fig. 3 to 5, the baffle structure 200 is provided with an accommodating cavity 222, the driving mechanism 300 includes a buffering component 310 and a power component 320, the buffering component 310 is movably accommodated in the accommodating cavity 222 and at least partially connected to the baffle structure 200, and the buffering component 310 is used for absorbing the impact received by the baffle structure 200; the power assembly 320 is connected to the fixing member 100 and is used for driving the barrier structure 200 to move.

When the guard device 10 of the present embodiment is used, the power assembly 320 may drive the baffle structure 200 to extend from the movable slot 110, and when a vehicle impacts the baffle structure 200, the baffle structure 200 may generate a certain displacement under the action of the buffer assembly 310 and absorb the impact of the vehicle on the baffle structure 200, so as to reduce the impact between the vehicle and the baffle structure 200.

Referring to fig. 4 and 5, in the present embodiment, the buffering component 310 includes a connecting component 311, a limiting component 312 and an elastic component 313, the connecting component 311 is movably connected to the barrier structure 200, and the power component 320 is configured to drive the connecting component 311 to move so as to drive the barrier structure 200 to move; the inner wall of the accommodating cavity 222 is provided with a buffer groove 223, the limiting member 312 and the elastic member 313 are both at least partially accommodated in the buffer groove 223, and the limiting member 312 is connected to the baffle structure 200.

In this embodiment, the power assembly 320 drives the baffle structure 200 to move by driving the connecting member 311, when the baffle structure 200 is impacted, the limiting member 312 can move relative to the connecting member 311 under the driving of the baffle structure 200, and at this time, the elastic member 313 deforms and offsets the impact force by the elastic force, thereby achieving the effect of buffering the baffle structure 200.

Specifically, in the present embodiment, the connecting member 311 is provided with a limiting hole 31111, the limiting member 312 is slidably engaged with the limiting hole 31111, the length of the limiting hole 31111 is not greater than the length of the limiting member 312, and the elastic member 313 abuts against the inner wall of the buffer slot 223 and the connecting member 311 respectively, and is used for driving the limiting member 312 to move in a direction away from the connecting member 311.

With this arrangement, when the stop piece 312 moves in the stop hole 31111 of the connection piece 311, and the baffle structure 200 moves to the end of the moving path, the end surface of the stop hole 31111 may abut against the stop piece 312 to stop the movement of the stop piece 312, so as to realize the stop of the movement of the baffle structure 200.

Further, referring to fig. 5 and 6, the connecting member 311 includes a connecting member body 3111 and a pulley 3112, the limiting hole 31111 is disposed at one end of the connecting member body 3111, the baffle structure 200 further has a sliding slot 224 communicated with the accommodating cavity 222, an extending direction of the sliding slot 224 is parallel to a moving direction of the baffle structure 200, the pulley 3112 is connected to the connecting member body 3111 and is in sliding fit with the sliding slot 224, and at least a portion of the power assembly 320 is accommodated in the accommodating cavity 222 and is used for driving the connecting member body 3111 to move.

With this arrangement, when the connecting member 311 moves relative to the baffle structure 200, the pulley 3112 can slide in the sliding slot 224 to drive the connecting member 311 to move smoothly relative to the baffle structure 200.

Specifically, the number of the pulleys 3112 may be plural, and the plural pulleys 3112 are arranged at intervals along the extending direction of the connecting member 311, and the plural pulleys 3112 are each slidably fitted to the slide groove 224; it is understood that the smoothness of the moving process of the connecting member 311 can be improved by providing a plurality of pulleys 3112 to be engaged with the slide groove 224.

Further, the cross section of the sliding groove 224 is T-shaped, and the bottom surface of the pulley 3112 is in rolling contact with the bottom surface inside the sliding groove 224, so that the sliding groove 224 can limit the movement of the pulley 3112 in the vertical direction, and the connecting piece 311 can be suspended in the accommodating cavity 222 through the pulley 3112, and the structure is simple and the using effect is good.

In this embodiment, a tooth slot 31112 is formed on a side of the connector body 3111 away from the pulley 3112, the power assembly 320 includes a gear shaft 321 and a driving motor 322, the driving motor 322 is connected to the fixing member 100 and is configured to drive the gear shaft 321 to rotate, and the gear shaft 321 is accommodated in the accommodating cavity 222 and engaged with the tooth slot 31112.

With this arrangement, the driving motor 322 drives the gear shaft 321 to rotate, and the gear shaft 321 and the tooth slot 31112 are matched to realize the function of driving the connecting member 311 to move.

Referring to fig. 5, in the present embodiment, the gear shaft 321 is disposed at the bottom of the connecting member 311; with this arrangement, the gear shaft 321 can be used for carrying the connecting member 311 to limit the movement of the connecting member 311 in the vertical direction.

Specifically, referring to fig. 1, in the present embodiment, the number of the fixing grooves 201 is two, and the two fixing grooves 201 are symmetrically disposed on two opposite sides of the tunnel 20; the number of the protection devices 10 is also two, one protection device 10 is embedded in each fixing groove 201, and the two protection devices 10 are symmetrically arranged.

It will be appreciated that by providing two symmetrical sets of guards 10, when the driving mechanism 300 drives the baffle structure 200 to protrude from the movable slot 110, the two extensions 210 may constitute a substantially trumpet-shaped structure, in this embodiment, the trumpet-shaped large end opening towards the bridge 30 to guide the vehicle moving towards the tunnel 20 by the bridge 30; meanwhile, the two sets of protective devices 10 are symmetrically arranged on the two sides of the road of the tunnel 20, and the two sets of protective devices 10 can respectively guide and buffer vehicles moving in the forward direction (the direction from the tunnel 20 to the bridge 30) and the reverse direction, so that the driving safety of the highway tunnel structure 1 in the joint in a bidirectional driving mode is ensured.

In the highway tunnel structure 1 of the embodiment, by providing the above-mentioned protection device 10, when a vehicle passes through the junction between the tunnel 20 and the bridge 30, the protection device 10 can protect the vehicle from falling off due to the vehicle breaking through the guardrail of the bridge 30, so that the safety in use can be improved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.