Safety protective driving shed capable of being expanded automatically for tunnel

Abstract

The utility model relates to the technical field of engineering equipment, and discloses a safety protective driving shed capable of being expanded automatically for a tunnel. The protection assembly comprises two wing plates, the two wing plates are symmetrically arranged at the top of the cab body in the width direction of the cab body, and the two wing plates are both in sliding connection with the cab body; the driving assembly is arranged on the cab main body, and the output end of the driving assembly is connected with the two wing plates; the wing plate is provided with a first position which slides to be overlapped with the top of the cab main body under the driving action of the driving assembly, and a second position which slides to be at least partially extended out of the top of the cab main body under the driving action of the driving assembly. The problems that in the prior art, independent wing plates are additionally welded to the two sides of a driving shed, a cab is ultra-wide, the trafficability in a narrow tunnel is extremely poor, great inconvenience is brought to transition and movement of a whole vehicle, and the risk that the wing plates are cracked up exists are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering equipment, in particular to a safety protective driving shed for a tunnel which can be automatically widened. Background Art

[0002] Tunnel construction is a high-risk operation, requiring particular attention to the protection of construction workers. Construction workers typically operate in tunnels using construction vehicles, which typically feature a single cab. This requires consideration of both the tunnel's spatial capacity and the vehicle's compactness and coordination. Operators working from the outermost operating stations often face the risk of exceeding the protective limits of the left and right sides of the cab's cab due to individual operating habits and safety awareness. This exposes the operator to areas vulnerable to impact from hard objects such as gravel, posing a significant risk to their lives.

[0003] In related technologies, some construction units usually weld separate wing panels on both sides of the cab to prevent debris from falling. Although the construction workers are spared the risk of being exposed to the outside, the addition of wing panels makes the cab extra-wide, and the passability in narrow tunnels is extremely poor, which brings great inconvenience to the transfer and movement of the entire vehicle and there is a risk of damaging the wing panels. Utility Model Content

[0004] The utility model provides a safety protective cab that can be automatically widened for tunnels, so as to solve the problem that the existing method of welding separate wing panels on both sides of the cab makes the cab too wide, the passability in narrow tunnels is extremely poor, and it brings great inconvenience to the transfer and movement of the whole vehicle and there is a risk of damaging the wing panels.

[0005] In view of this, the utility model provides a safety protective driving shed for a tunnel that can be automatically widened, comprising:

[0006] Cab body;

[0007] A protection assembly comprising two wing panels, the two wing panels being symmetrically arranged on the top of the cab body in the width direction of the cab body, and both of the wing panels being slidably connected to the cab body;

[0008] A drive assembly is arranged on the cab body, and its output end is connected to the two wing plates; the wing plates slide to a first position overlapping with the top of the cab body under the driving action of the drive assembly, and slide to a second position at least partially extending out of the top of the cab body under the driving action of the drive assembly.

[0009] In an optional embodiment, the wing panel is slidably connected to the cab body via a guide assembly.

[0010] In an optional embodiment, the guide assembly includes a plurality of guide tubes arranged side by side; the guide tubes are arranged at the top of the cab body along the width direction of the cab body, and are open at both ends; telescopic tubes are slidably inserted into both ends of the guide tubes; the two wing plates are respectively connected to the telescopic tubes at both ends of the guide tubes.

[0011] In an optional embodiment, the tops of both ends of the guide tube are provided with grooves along the width direction of the cab body, and the grooves are connected to the ends of the guide tubes; the telescopic tube is provided with limit strips adapted to the grooves, and the wing plates are connected to the limit strips by screws.

[0012] In an optional embodiment, nylon sliders are provided at the bottom and both sides of the inner side wall of the guide tube, and a copper pad is provided at the top of the inner side wall of the guide tube.

[0013] In an optional embodiment, the driving assembly includes two telescopic members, and the telescopic ends of the two telescopic members are respectively connected to the two wing panels along the width direction of the cab body.

[0014] In an optional embodiment, a hinge seat is provided at the bottom of the wing plate, and the telescopic end of the telescopic member is hinged to the hinge seat via a pin.

[0015] In an optional embodiment, an anti-collision strip is provided on the periphery of the wing panel.

[0016] In an optional embodiment, a controller is further included, and the anti-collision strip is a safety edge-touching anti-collision strip; the controller is communicatively connected with the safety edge-touching anti-collision strip and the drive assembly, and is used to limit the movement of the entire vehicle or stop moving when the safety edge-touching anti-collision strip touches an obstacle.

[0017] In an optional embodiment, the cab body includes a base and a roof, the roof is connected to the base via telescopic legs, and the telescopic legs are used to adjust the height of the roof in the vertical direction; the protection assembly and the drive assembly are arranged on the roof.

[0018] The technical solution of this utility model has the following advantages:

[0019] The driving assembly of the utility model drives the two wing panels to slide on the top of the cab main body to widen it, so that the operator operating at the outermost side of the operating table can be covered in a safe range, thereby improving safety; when the whole vehicle needs to be moved after the work is completed, the driving assembly can drive the wing panels to slide and be stored back on the top of the cab main body, thereby reducing the passing width and increasing the passability of the cab main body, making it easy to move in the tunnel. It is flexible and convenient, can be operated according to actual conditions, and has strong applicability; the widening and storage of the wing panels are achieved by the driving assembly, and the operation is automatically controlled, which improves safety while reducing the labor burden and improving work efficiency through automatic control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic structural diagram of the automatically widening safety protective cab for tunnels according to an embodiment of the utility model when the wing panels are unfolded at a first viewing angle;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a schematic structural diagram of the automatically widening safety protective cab for tunnels according to an embodiment of the utility model when the wing panels are unfolded at a second viewing angle;

[0024] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0025] Figure 5 This is a schematic structural diagram of the automatically expandable safety protective cab for tunnels according to an embodiment of the utility model when the wing panels are unfolded at a third viewing angle;

[0026] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0027] Figure 7 for Figure 5 Enlarged view of point D in the middle;

[0028] Figure 8 for Figure 5 Enlarged view of point E in the middle;

[0029] Figure 9This is a schematic structural diagram of the automatically expandable safety protective cab for tunnels according to an embodiment of the utility model when the wing panels are unfolded at a fourth viewing angle;

[0030] Figure 10 A partially disassembled schematic diagram of the automatically widening safety protective cab for tunnels according to an embodiment of the utility model when the wing panels are deployed at a fifth viewing angle;

[0031] Figure 11 for Figure 10 Enlarged view of point F in the middle;

[0032] Figure 12 This is a schematic structural diagram of the automatically expandable safety protective cab for tunnels according to an embodiment of the utility model when the wing panels are retracted at a first viewing angle;

[0033] Figure 13 This is a schematic structural diagram of the automatically expandable safety protective cab for tunnels according to an embodiment of the utility model when the wing panels are retracted at a third viewing angle;

[0034] Figure 14 This is a schematic structural diagram of the automatically expandable safety protective cab for tunnels according to an embodiment of the utility model when the wing panels are retracted at a fourth viewing angle;

[0035] Figure 15 Schematic diagram of the structure of the safety edge collision strip according to an embodiment of the present invention at a sixth viewing angle;

[0036] Figure 16 This is a workflow diagram of the safety edge contact anti-collision strip according to an embodiment of the present utility model.

[0037] Description of reference numerals:

[0038] 1. Cab body; 101. Base; 102. Roof; 103. Telescopic legs; 2. Wings; 3. Guide tubes; 4. Telescopic tubes; 5. Slots; 6. Limit strips; 7. Nylon sliders; 8. Copper pads; 9. Telescopic parts; 10. Articulated seats; 11. Pins; 12. Anti-collision strips; 1201. Alloy aluminum rails; 1202. Safety contact strips; 1203. Induction chambers; 1204. Safety contacts. DETAILED DESCRIPTION

[0039] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] The following combination Figures 1 to 15 , describing the embodiments of the present utility model.

[0044] According to an embodiment of the utility model, a safety protective cab that can be automatically widened for a tunnel is provided, comprising: a cab body 1; a protection component, comprising two wing panels 2, the two wing panels 2 being symmetrically arranged on the top of the cab body 1 in the width direction of the cab body 1, and the two wing panels 2 are both slidingly connected to the cab body 1; a drive component, arranged on the cab body 1, and the output end of the wing panel 2 is connected to the two wing panels 2; the wing panel 2 has a first position that slides to overlap with the top of the cab body 1 under the driving action of the drive component, and a second position that slides to at least partially extend out of the top of the cab body 1 under the driving action of the drive component.

[0045] It should be noted that the wing panel 2 is slidably connected to the cab body 1 in the width direction of the cab body 1 .

[0046] In this embodiment, two wings 2 are provided on the top of the cab body 1. When there is enough space in the tunnel, the two wings 2 can be driven by the driving assembly to slide on both sides in the width direction of the cab body 1 to extend to the second position on both sides of the top of the cab body 1, so as to expand the protection range of the top of the cab body 1; when widening, the operator operating at the outermost side of the operating table can be covered in a safe range, thereby improving safety. When the entire vehicle needs to be moved after the work is completed, the wing panels 2 can be driven by the driving assembly to slide and retract back to the top of the cab body 1, that is, to slide to the first position, thereby reducing the passing width and increasing the passability of the cab body 1, which is convenient for moving in the tunnel. It is flexible and convenient, can be operated according to actual conditions, and has strong applicability. The widening and retraction of the wing panels 2 are realized by the driving assembly, and the operation is automatically controlled. While improving safety, it can also reduce the labor burden and improve work efficiency through automated control.

[0047] In one embodiment, Figure 1 、 Figure 3 、 Figure 5 、 Figure 9 、 Figure 10 、 Figures 12 to 14 As shown, the wing panel 2 is slidably connected to the cab body 1 through a guide assembly.

[0048] In this embodiment, the wing plate 2 is slidably connected to the cab body 1 through a guide assembly, which improves the stability of the wing plate 2 during sliding and ensures its service life.

[0049] In one embodiment, Figure 1 、 Figure 3 、 Figure 5 、 Figure 10 、 Figures 12 to 13 As shown, the guide assembly includes a plurality of guide tubes 3 arranged side by side; the guide tubes 3 are arranged at the top of the cab body 1 along the width direction of the cab body 1, and are open at both ends; telescopic tubes 4 are slidably inserted into both ends of the guide tubes 3; and the two wing plates 2 are respectively connected to the telescopic tubes 4 at both ends of the guide tubes 3.

[0050] It should be noted that the wing plate 2 is connected to the top of the telescopic tube 4 so that the telescopic tube 4 supports the wing plate 2 .

[0051] In this embodiment, multiple guide tubes 3 are provided, and telescopic tubes 4 are slidably inserted at both ends of the guide tubes 3, and the wing plates 2 are connected through the telescopic tubes 4. When the driving assembly drives the wing plates 2 to move, the telescopic tubes 4 move in the guide tubes 3 to achieve guidance, thereby ensuring stability during the movement process, and supporting the wing plates 2 through the telescopic tubes 4 to improve the support strength and further improve safety.

[0052] Specifically, two guide tubes 3 are provided, and the two guide tubes 3 are arranged in parallel and at intervals, which further improves the stability of the wing plate 2 during the sliding process, and supports the wing plate 2 through multiple telescopic tubes 4 to improve the support strength and further improve safety. More guide tubes 3 can be provided to further improve the support strength and stability, and the specific selection can be made according to actual needs.

[0053] In one embodiment, Figure 1 、 Figure 2 、 Figure 5 and Figure 10 As shown, the tops of both ends of the guide tube 3 are provided with slots 5 along the width direction of the cab body 1, and the slots 5 are connected to the ends of the guide tube 3; the telescopic tube 4 is provided with a limit strip 6 adapted to the slot 5, and the wing plate 2 is connected to the limit strip 6 by screws.

[0054] In this embodiment, by providing a slot 5 to cooperate with the limit strip 6 on the telescopic tube 4, when the wing panel 2 is retracted to the top of the cab body 1, the connection between the telescopic tube 4 and the wing panel 2 can continue to move along the slot 5 into the guide tube 3, and the limit strip 6 can cooperate with the slot 5 to improve the stability during the sliding process, so as to increase the length of the guide tube 3 without affecting the storage of the wing panel 2, increase the matching length of the guide tube 3 and the telescopic tube 4, and thereby improve the overall strength and stability, and the wing panel 2 is connected to the limit strip 6 through screws to ensure the connection strength and improve the service life.

[0055] In one embodiment, Figure 2 、 Figure 4 、 Figures 6 to 8 As shown, nylon sliders 7 are provided at the bottom and both sides of the inner side wall of the guide tube 3 , and a copper pad 8 is provided at the top of the inner side wall of the guide tube 3 .

[0056] In this embodiment, by adding a nylon slider 7 and a copper pad 8 between the guide tube 3 and the telescopic tube 4, the smoothness of the telescopic tube 4 when sliding in the guide tube 3 is improved, and the noise generated during the sliding process can be reduced. At the same time, a buffering and shock-absorbing effect is played between the guide tube 3 and the telescopic tube 4, reducing the wear between the guide tube 3 and the telescopic tube 4.

[0057] Specifically, the copper pad 8 is connected to the guide tube 3 by screws, the nylon slider 7 located at the bottom of the guide tube 3 is connected to the guide tube 3 by screws, and the nylon sliders 7 located on both sides of the guide tube 3 are connected to the guide tube 3 through pressure plates. The pressure plates are fixed to the side walls of the guide tube 3 by screws, and the pressure plates are provided with mounting grooves for embedding the nylon sliders 7 to facilitate the installation of the nylon sliders 7.

[0058] In one embodiment, Figure 1 、 Figure 3 、 Figure 5 、 Figure 10 、 Figure 12 and Figure 13 As shown, the driving assembly includes two telescopic members 9 , and the telescopic ends of the two telescopic members 9 are respectively connected to the two wing panels 2 along the width direction of the cab body 1 .

[0059] In this embodiment, two telescopic parts 9 are provided, and the two telescopic parts 9 are respectively connected to the two wing panels 2, so as to individually control the movement of each wing panel 2. According to the width of the tunnel, the distance that each wing panel 2 extends out of the cab body 1 is independently adjusted, thereby improving the flexibility of adjustment and improving the applicable scenarios.

[0060] Specifically, the two telescopic members 9 are symmetrically arranged along the width direction of the cab body 1 to improve stability.

[0061] Specifically, the telescopic member 9 can be a pneumatic rod, a hydraulic rod, an air cylinder or a hydraulic cylinder, etc.

[0062] In one embodiment, Figure 5 、 Figure 10 and Figure 11 As shown, a hinge seat 10 is provided at the bottom of the wing plate 2 , and the telescopic end of the telescopic member 9 is hinged to the hinge seat 10 through a pin shaft 11 .

[0063] In this embodiment, the telescopic end of the telescopic member 9 is hinged to the hinge seat 10 provided at the bottom of the wing plate 2 through the pin shaft 11, so as to avoid the wing plate 2 from getting stuck when being driven to move.

[0064] In one embodiment, Figure 1 、 Figure 5 、 Figure 10 、 Figure 12 、 Figure 13 and Figure 15 As shown, an anti-collision strip 12 is provided on the periphery of the wing panel 2 .

[0065] In this embodiment, an anti-collision strip 12 is provided on the periphery of the wing panel 2 to provide a buffering effect, thereby preventing the wing panel 2 from being damaged in the event of a collision.

[0066] Specifically, the anti-collision strips 12 are provided on both sides of the wing panel 2 in the forward direction of the cab main body 1 and on the side facing away from the cab main body 1 .

[0067] In one embodiment, Figure 15 As shown, the automatically expandable safety protective cab for tunnels also includes a controller, and the anti-collision strip 12 is a safety edge-touching anti-collision strip; the controller is communicated with the safety edge-touching anti-collision strip and the drive assembly, and is used to limit the movement of the entire vehicle or stop moving when the safety edge-touching anti-collision strip touches an obstacle.

[0068] It should be noted that the controller is connected to the entire vehicle electrical system, for example, the running device; the safety edge contact anti-collision strip can adopt the existing conventional safety edge contact anti-collision strip.

[0069] In this embodiment, the anti-collision strip 12 adopts a safety touch edge anti-collision strip and is communicated with the controller. When the safety touch edge anti-collision strip touches an obstacle, the safety flexible touch edge of the safety touch edge anti-collision strip is squeezed, and the conductors of the internal sensing belt are instantly in contact with each other, resulting in a change in resistance current, and the signal is transmitted to the controller for analysis. The controller immediately stops the power source of the cab main body 1, limits the movement of the entire vehicle or stops walking to avoid further damage. If the drive component is driving the wing panel 2 to unfold, the drive component is controlled to stop working, realizing emergency active protection, improving safety and intelligence.

[0070] The parameters of the safety edge collision strip are shown in Table 1 below:

[0071] Table 1 Safety edge collision strip parameters

[0072]

[0073] In specific applications, such as Figure 16 As shown, the specific working principle of the safety edge touch anti-collision strip is: the anti-touch mode is set by the program, and the wing panel 2 widening protection is turned on. The controller will determine whether the anti-touch mode is turned on. If it is not turned on, the wing panel 2 widening cannot move; under the premise of turning on the anti-touch mode, the wing panel 2 widening can be executed normally. During the work or movement of the whole vehicle, the controller monitors the detection of the anti-touch signal of the safety edge touch anti-collision strip in real time. Once the signal is detected, the controller will send a signal to restrict the movement or movement of the whole vehicle. Only when the operator manually confirms and eliminates the fault can the whole vehicle be released from the restriction.

[0074] Specifically, the safety edge collision prevention strip includes an alloy aluminum rail 1201 and a safety contact strip 1202. The safety contact strip 1202 is arranged on the alloy aluminum rail 1201. A sensing cavity 1203 is provided in the safety contact strip 1202. Safety contacts 1204 are provided on both sides of the sensing cavity 1203. When the safety contact strip 1202 touches an obstacle, the sensing cavity 1203 of the safety contact strip 1202 is compressed, and the safety contacts 1204 on both sides of the sensing cavity 1203 contact, causing a signal change and feedback to the controller.

[0075] In one embodiment, Figure 1 、 Figure 9 、 Figure 10 、 Figure 12 and Figure 14 As shown, the cab body 1 includes a base 101 and a roof 102. The roof 102 is connected to the base 101 through telescopic legs 103. The telescopic legs 103 are used to adjust the height of the roof 102 in the vertical direction. The protection component and the drive component are arranged on the roof 102.

[0076] It should be noted that the base 101 and the roof 102 together form a cockpit.

[0077] In this embodiment, the cab body 1 is formed by a roof 102 connected to a base 101 through telescopic legs 103. The height of the roof 102 can be adjusted by the telescopic legs 103 according to actual conditions to adjust the internal space of the cab body 1. The internal space of the cab body 1 can be increased at a larger position in the tunnel to improve operating comfort. The internal space of the cab body 1 can be reduced at a smaller position in the tunnel to adapt to environmental requirements and improve the scope of application.

[0078] Specifically, there are multiple telescopic legs 103, which are evenly distributed; the telescopic legs 103 include inner legs, outer legs and hydraulic cylinders, the outer legs are welded to the base 101 in the vertical direction, the top ends of the inner legs are welded to the ceiling 102, and the bottom ends of the inner legs can be slidably inserted on the outer legs; the hydraulic cylinders arranged in the outer legs are used to drive the inner legs to move in the vertical direction for adjustment.

[0079] As a convertible embodiment, the telescopic legs 103 may be hydraulic rods or pneumatic rods.

[0080] Specifically, the telescopic leg 103 is in communication with the controller.

[0081] The specific working principle of the automatically widened safety protective cab for tunnels provided by this embodiment is as follows: the anti-touch mode is set by the controller program, and the panel widening protection is turned on. When the whole vehicle travels to the working position in the tunnel, the controller can control the telescopic parts 9 to drive the two wing panels 2 to widen to a preset distance on both sides along the width direction of the cab main body 1 according to the tunnel space, so as to cover the operators operating at the outermost side of the operating table within a safe range, thereby improving safety, and the roof 102 is driven to move by the telescopic legs 103 to adjust to the appropriate operating space. When the work is completed and the whole vehicle needs to move, the telescopic parts 9 can be controlled to drive the wing panels 2 to slide back to the top of the cab main body 1, thereby reducing the passing width and increasing the passability of the cab main body 1, which is convenient for moving in the tunnel, flexible and convenient, and can be operated according to actual conditions. The operation is highly applicable. During the movement of the entire vehicle and the unfolding of the wing panel 2, the controller monitors the detection of the anti-touch signal of the safety touch edge anti-collision strip in real time. Once the signal is detected, the controller will send a signal to restrict the movement or walking of the entire vehicle. Only when the operator manually confirms and eliminates the fault can the entire vehicle be released from the restriction; the controller controls the drive assembly to realize the widening and storage of the wing panel 2, the extension and retraction of the roof 102, and the judgment of whether a collision occurs. The operation is automatically controlled to improve safety while reducing the labor burden and improving work efficiency through automatic control, solving the existing method of welding separate wing panels 2 on both sides of the cab, which makes the cab ultra-wide and has poor passability in narrow tunnels, which brings great inconvenience to the transfer and movement of the entire vehicle and the risk of damaging the wing panel 2.

[0082] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A safety protective driving canopy for tunnels that can be automatically widened, characterized in that: include: Cab body (1); A protection assembly comprising two wing panels (2), the two wing panels (2) being symmetrically arranged on the top of the cab body (1) in the width direction of the cab body (1), and the two wing panels (2) being slidably connected to the cab body (1); A drive assembly is provided on the cab body (1), and its output end is connected to the two wing plates (2); the wing plates (2) have a first position in which they slide to overlap with the top of the cab body (1) under the driving action of the drive assembly, and a second position in which they slide to at least partially extend out of the top of the cab body (1) under the driving action of the drive assembly.

2. The automatically widenable safety protective driving canopy for tunnels according to claim 1, characterized in that: The wing plate (2) is slidably connected to the cab body (1) via a guide assembly.

3. The automatically widenable safety protective driving canopy for tunnels according to claim 2, characterized in that: The guide assembly comprises a plurality of guide tubes (3) arranged side by side; the guide tubes (3) are arranged at the top of the cab body (1) along the width direction of the cab body (1), and are open at both ends; telescopic tubes (4) are slidably inserted at both ends of the guide tubes (3); and the two wing plates (2) are respectively connected to the telescopic tubes (4) at both ends of the guide tubes (3).

4. The automatically widenable safety protective driving canopy for tunnels according to claim 3, characterized in that: The tops of both ends of the guide tube (3) are provided with slots (5) along the width direction of the cab body (1), and the slots (5) are connected to the ends of the guide tube (3); the telescopic tube (4) is provided with a limit strip (6) adapted to the slot (5), and the wing plate (2) is connected to the limit strip (6) by screws.

5. The automatically widenable safety protective driving canopy for tunnels according to claim 3, characterized in that: Nylon sliders (7) are provided at the bottom and both sides of the inner side wall of the guide tube (3), and a copper pad (8) is provided at the top of the inner side wall of the guide tube (3).

6. The automatically widenable safety protective driving canopy for tunnels according to claim 1, characterized in that: The driving assembly comprises two telescopic members (9), and the telescopic ends of the two telescopic members (9) are respectively connected to the two wing panels (2) along the width direction of the cab body (1).

7. The automatically widenable safety protective driving canopy for tunnels according to claim 6, characterized in that: A hinge seat (10) is provided at the bottom of the wing plate (2), and the telescopic end of the telescopic member (9) is hinged to the hinge seat (10) via a pin shaft (11).

8. The automatically widenable safety protective driving canopy for tunnels according to claim 1, characterized in that: An anti-collision strip (12) is provided on the periphery of the wing plate (2).

9. The automatically widenable safety protective driving canopy for tunnels according to claim 8, characterized in that: It also includes a controller, wherein the anti-collision strip (12) is a safety edge-touching anti-collision strip; the controller is in communication connection with the safety edge-touching anti-collision strip and the driving component, and is used to limit the movement of the entire vehicle or stop it when the safety edge-touching anti-collision strip touches an obstacle.

10. The automatically widenable safety protective driving canopy for tunnels according to any one of claims 1 to 9, characterized in that: The cab body (1) comprises a base (101) and a roof (102); the roof (102) is connected to the base (101) via telescopic legs (103); the telescopic legs (103) are used to adjust the height of the roof (102) in a vertical direction; the protection assembly and the drive assembly are arranged on the roof (102).

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