A light-adjustable tunnel sunshade

Abstract

The application discloses a tunnel sunshade shed with adjustable brightness, which is arranged on a tunnel entrance road and comprises an arched shed frame, sunshade leaves are arranged in each opening of the shed frame, a plurality of transmission rods which can move back and forth along the longitudinal direction of the road are arranged under the shed frame, the transmission rods are arranged in the circumferential direction of the shed frame, a guide rod is arranged in the transverse direction of the road in each opening, a long strip-shaped guide groove is arranged on the sunshade leaf in the longitudinal direction of the road, the guide rod is slidably arranged in the guide groove, the same end of all the sunshade leaves is hingedly connected to the transmission rod through a hinged shaft, the hinged shaft is arranged in the transverse direction of the road, the transmission rod is driven to move by a driving mechanism fixedly arranged on the shed frame, the driving mechanism is electrically connected to a controller, and the controller is electrically connected to an illumination intensity sensor and a smoke sensor; and the tunnel sunshade shed effectively solves the technical problems of automatic brightness adjustment in the sunshade shed and improvement of the ventilation effect when a fire occurs in the tunnel.

Description

TECHNICAL FIELD

[0001] The present application relates to highway safety facilities, in particular to a tunnel sunshade with adjustable brightness. BACKGROUND

[0002] The highway tunnel has a large difference between the inside and outside brightness, resulting in a "black and white hole" effect. The traditional tunnel sunshade can form a brightness transition zone to improve the light environment at the tunnel entrance and exit through the gradual change of brightness, but it cannot automatically adjust according to the brightness outside the tunnel, and it affects the ventilation effect of the tunnel when a fire occurs, forming a certain safety hazard. SUMMARY

[0003] Therefore, the purpose of the present application is to provide a tunnel sunshade with adjustable brightness to solve the technical problems that the existing tunnel entrance sunshade cannot automatically adjust according to the brightness outside the tunnel and affects the ventilation when a fire occurs in the tunnel.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] A tunnel sunshade with adjustable brightness is arranged on the highway at the tunnel entrance, comprising an arched shed frame, a light-shielding blade is arranged in each opening of the shed frame, a plurality of transmission rods movable back and forth along the longitudinal direction of the highway are supported under the shed frame, the plurality of transmission rods are arranged in a ring around the shed frame, a guide rod is arranged in each opening in the transverse direction of the highway, a long strip-shaped guide groove is arranged on the light-shielding blade in the longitudinal direction of the highway, the guide rod is slidably arranged in the guide groove, the same end of all light-shielding blades is connected to the transmission rod through a hinged shaft, the hinged shaft is located in the transverse direction of the highway, the transmission rod is driven to move by a driving mechanism fixedly arranged on the shed frame, the driving mechanism is electrically connected to a controller, and the controller is electrically connected to a light intensity sensor.

[0006] Further, the controller is also electrically connected to a smoke sensor.

[0007] Further, the two ends of all transmission rods are connected together by a connecting piece.

[0008] Further, the driving mechanism is a telescopic mechanism, and the movable end of the telescopic mechanism is connected perpendicularly to the connecting piece.

[0009] Further, support pieces are arranged at the two ends of the shed frame, holes are arranged on the support pieces, and the transmission rods are slidably arranged through the holes.

[0010] Further, the light-shielding blade comprises a blade body, a rib is arranged in the longitudinal direction of the highway at the middle of the width direction of the blade body, the guide groove is arranged on the rib, and the rib is hingedly connected to the transmission rod.

[0011] Furthermore, the canopy includes several circumferential support rods located transversely within the highway. These circumferential support rods are arranged in parallel along the longitudinal direction of the highway. All the circumferential support rods are connected by several crossbeams arranged longitudinally along the highway, and these crossbeams are arranged circumferentially along the circumferential support rods.

[0012] The beneficial effects of this invention are:

[0013] This invention provides an adjustable brightness tunnel sunshade. A light intensity sensor and a smoke sensor detect the light and smoke conditions outside the tunnel. When the light intensity outside the tunnel changes or there is smoke, the controller controls the drive mechanism to move, thereby moving the transmission rod. Under the combined action of the guide rod and the guide groove, the shading blades rotate around the hinge axis, thereby adjusting the angle of the shading blades and ultimately adjusting the brightness inside the sunshade. This effectively solves the technical problems of automatic brightness adjustment inside the sunshade and improving ventilation in the event of a tunnel fire.

[0014] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will now be described in further detail with reference to the accompanying drawings, wherein:

[0016] Fig. 1 This is a three-dimensional view of the frame structure of the present invention.

[0017] Fig. 2 This is a perspective view of the canopy frame of the present invention from another angle.

[0018] Fig. 3 This is a schematic diagram showing the connection between the light-shielding blade, transmission rod, and guide rod in this invention.

[0019] In the diagram: 1. Shed 11. Circumferential support rod 11. Crossbeam 12. Shading blade 2. Blade body 21. Rib 22. Transmission rod 3. Guide rod 4. Guide groove 5. Hinge shaft 6. Drive mechanism 7. Telescopic mechanism 71. Connector 8. Support 9. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0021] like Figs. 1-3As shown, a kind of adjustable brightness tunnel sunshade is arranged on the tunnel entrance road, including arched shed frame 1, each opening of shed frame 1 is provided with shading blade 2, and a plurality of transmission rods 3 movable along the longitudinal direction of the road are supported under shed frame 1, the plurality of transmission rods 3 are arranged in the ring direction of shed frame 1, each opening is provided with guide rod 4 located in the transverse direction of the road, shading blade 2 is provided with long strip-shaped guide groove 5 arranged in the longitudinal direction of the road, guide rod 4 is slidably located in guide groove 5, the same end of all shading blades 2 is hingedly connected to transmission rod 3 through hinged shaft 6, hinged shaft 6 is located in the transverse direction of the road, transmission rod 3 is driven to move by drive mechanism 7 fixedly arranged on shed frame 1, drive mechanism is electrically connected with controller, controller is electrically connected with light intensity sensor and smoke sensor.

[0022] When the light intensity sensor detects that the light intensity outside the hole exceeds the set intensity value, the controller controls drive mechanism 7 to act and drive transmission rod 3 to move, so that shading blade 2 rotates around hinged shaft 6 to close each opening of shed frame 1 under the cooperation of guide rod 4 and guide groove 5, when the light intensity sensor detects that the light intensity outside the hole is lower than the set intensity value, the controller controls drive mechanism 7 to act and drive transmission rod 3 to move in the opposite direction, so that shading blade 2 rotates around hinged shaft 6 to open each opening of shed frame 1 under the cooperation of guide rod 4 and guide groove 5, when the smoke sensor detects that there is smoke in the tunnel, the controller controls drive mechanism 7 to act and drive transmission rod 3 to move, so that shading blade 2 rotates around hinged shaft 6 to open each opening of shed frame 1 under the cooperation of guide rod 4 and guide groove 5 to enhance the ventilation effect, which can reduce safety accidents.

[0023] Of course, the opening angle of shading blade can also be adjusted by the controller according to the specific value of the brightness outside the hole, and the shading blade is completely opened when there is smoke in the tunnel.

[0024] The sunshade realizes reducing the black and white hole effect, adjusting the opening and angle of shading blade 2 according to the brightness outside the hole and the ventilation demand of the tunnel, and plays the functions of shading and ventilation.

[0025] Both ends of all transmission rods 3 are connected together through connecting piece 8, and connecting piece 8 is an arc-shaped rod, which can reduce the number of drive mechanisms 7.

[0026] The drive mechanism is telescopic mechanism 71, the movable end of telescopic mechanism 71 is connected perpendicularly to connecting piece 8, and telescopic mechanism 71 drives transmission rod 3 to move back and forth. Of course, the drive mechanism can also be a gear and rack transmission mechanism, the rack is located on the transmission rod, and the motor electric gear rotates.

[0027] The telescopic mechanism is an electric telescopic rod.

[0028] Both ends of shed frame 1 are respectively provided with support 9, support 9 is provided with a hole, transmission rod 3 slides through the hole, and support 9 is an arc-shaped support plate.

[0029] The light-shielding blade 2 comprises a blade body 21, a rib 22 arranged along the longitudinal direction of the road is arranged in the middle of the blade body 21 in the width direction, the guide groove 5 is arranged on the rib 22, and the rib 22 is hingedly connected to the transmission rod 3.

[0030] Preferably, the shed frame 1 comprises a plurality of annular support rods 11 arranged in the transverse direction of the road, the annular support rods 11 are arranged in parallel along the longitudinal direction of the road, and all the annular support rods 11 are connected by a plurality of cross beams 12 arranged along the longitudinal direction of the road, and the cross beams 12 are arranged annularly along the annular support rods 11.

[0031] The guide rod 4 is fixed at both ends between two adjacent cross beams 12.

[0032] The sunshade can automatically adjust the opening degree of the light-shielding blade according to the brightness outside the tunnel, use natural light to supplement the lighting of the tunnel, realize green lighting while shielding, and adjust the opening of the blade when good ventilation of the tunnel is needed, so as to avoid causing ventilation hazards.

[0033] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A variable intensity tunnel sunshade, arranged on a tunnel portal road, comprising an arched shed frame (1), characterized in that: The shed frame (1) is provided with a light shielding blade (2) in each opening, and a plurality of transmission rods (3) movable back and forth along the longitudinal direction of the road are supported below the shed frame (1), the plurality of transmission rods (3) are arranged in the circumferential direction of the shed frame (1), a guide rod (4) in the transverse direction of the road is arranged in each opening, the light shielding blade (2) is provided with an elongated guide groove (5) arranged in the longitudinal direction of the road, the guide rod (4) is slidably arranged in the guide groove (5), the same end of all light shielding blades (2) is hingedly connected to the transmission rod (3) through a hinge shaft (6), the hinge shaft (6) is in the transverse direction of the road, the transmission rod (3) is driven to move by a driving mechanism (7) fixedly arranged on the shed frame (1), the driving mechanism is electrically connected to a controller, and the controller is electrically connected to a light intensity sensor; The controller is also electrically connected to a smoke sensor; Both ends of all transmission rods (3) are connected together through a connecting piece (8); The driving mechanism is a telescopic mechanism (71), and the movable end of the telescopic mechanism (71) is connected to the connecting piece (8) perpendicularly; Both ends of the lower part of the shed frame (1) are respectively provided with a support (9), the support (9) is provided with a hole, and the transmission rod (3) is slidably arranged in the hole; The light shielding blade (2) comprises a blade body (21), a rib (22) arranged in the longitudinal direction of the road is arranged at the middle of the lower part of the blade body (21) in the width direction, the guide groove (5) is arranged on the rib (22), and the rib (22) is hingedly connected to the transmission rod (3).

2. A variable intensity tunnel shade according to claim 1, wherein: The shed frame (1) comprises a plurality of circumferential support rods (11) in the transverse direction of the road, the plurality of circumferential support rods (11) are arranged in parallel in the longitudinal direction of the road, all the circumferential support rods (11) are connected by a plurality of transverse beams (12) arranged in the longitudinal direction of the road, and the plurality of transverse beams (12) are arranged in the circumferential direction of the circumferential support rod (11).

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