CN116176678B - Tunnel safety construction conveyer - Google Patents

Abstract

The invention provides a tunnel safety construction transportation device, comprising: a vehicle body, a wheel assembly, a collision mechanism and a braking mechanism; There is a drive plate; the collision mechanism is installed on the head of the car body and connected with the drive plate. The collision mechanism has a collision surface and a drive surface; when the collision surface receives an external force from the first direction, the drive surface drives the drive plate to move to the second lift position; when the external force is removed, the driving plate returns to the first lifting position; the brake mechanism is installed at the bottom of the car body and is connected with the driving plate; when the driving plate is in the second lifting position, the braking mechanism is in contact with the ground for braking; when driving When the board is in the first lifting position, the brake mechanism is far away from the ground to release the brake. Therefore, in the process of the transport vehicle colliding with the obstacle, the brake mechanism contacts and brakes with the ground, which plays the role of auxiliary braking at the first time, and reduces the loss in the collision process.

Description

A tunnel safety construction transportation device

technical field

The invention generally relates to the technical field of tunnel construction devices, in particular to a tunnel safety construction transportation device.

Background technique

Construction safety refers to the safety problems encountered in engineering construction. Construction safety covers all safety problems in the operation process, and involves management, financial and logistics support and other related content.

Tunnel transport vehicle is a mobile vehicle body used to transport materials in tunnels. Due to the narrow space in the tunnel and the complicated road surface conditions, in order to avoid the collision of the transport vehicles during the moving process, resulting in material damage, the existing tunnel transport vehicles are usually equipped with braking devices. The braking device reduces the speed of the vehicle when a collision is about to occur by braking the wheels, thereby reducing the impact force during the collision;

However, when the existing tunnel transport vehicle transports materials, the inertial force is relatively large. Due to the limited friction generated by the braking device when braking the wheels, the braking effect is poor. It is easy to cause loss of the transport vehicle and the materials in the vehicle.

Contents of the invention

In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a tunnel safety construction transportation device that can solve the above-mentioned technical problems.

The invention provides a tunnel safety construction transportation device, comprising:

Car body, the car body is equipped with a bearing plate for carrying materials, and an installation space is formed between the carrier plate and the bottom of the car body; a drive plate can be lifted and lowered in the installation space; the drive plate has a second a lifting position and a second lifting position;

a wheel assembly mounted on the bottom of the vehicle body;

a collision mechanism, the collision mechanism is installed on the head of the vehicle body and connected to the driving plate, the collision mechanism has a collision surface and a driving surface; when the collision surface is subjected to an external force from a first direction, The driving surface drives the driving plate to move to the second lifting position; when the external force is removed, the driving plate returns to the first lifting position; the first direction is from the head of the vehicle body to the tail;

A brake mechanism, the brake mechanism is installed at the bottom of the vehicle body and is connected to the drive plate in transmission; when the drive plate is in the second lifting position, the brake mechanism contacts the ground for braking; When the driving plate is at the first lifting position, the brake mechanism is kept away from the ground to release the brake.

According to the technical solution provided by the embodiment of the present invention, the bottom of the car body is provided with a first through hole, and the braking mechanism is connected to the drive plate through a transmission assembly; the transmission assembly includes:

a transmission gear, the transmission gear is installed in the installation space rotatably along a rotation axis, and the rotation axis is parallel to the bottom surface of the vehicle body;

A first drive rack, the first drive rack is arranged along a second direction and meshes with one side of the transmission gear; the first drive rack is fixedly connected to the drive plate; the second direction is perpendicular to the underside of the vehicle body;

a second drive rack, the second drive rack is arranged along the second direction and meshes with the other side of the transmission gear; the brake mechanism is connected to the second drive rack through the first through hole Fixed connection.

According to the technical solution provided by the embodiment of the present invention, the installation space is provided with a second through hole corresponding to the head side of the car body; the collision mechanism includes:

A driving block, the driving block can be slidably installed in the second through hole along the first direction, the driving surface is an inclined slope and is arranged on the driving block, the driving surface and the driving butt contact on the bottom of the board;

A strike plate, the strike plate is arranged at the head of the vehicle body and is connected with the driving block, and the collision surface is disposed on the side of the strike plate away from the vehicle body.

According to the technical solution provided by the embodiments of the present invention, the strike plate is hinged to the drive block, and a limit assembly is provided between the vehicle body and the strike plate, and the limit assembly includes:

a first guide rod, the first guide rod is arranged along the second direction; both ends of the first guide rod are provided with limit blocks for fixed connection with the vehicle body head;

a slider, the slider is mounted on the first guide rod slidably along the second direction, and a first elastic member is installed between the slider and the limiting block;

A connecting rod, one end of the connecting rod is hinged with the slider, and the other end is hinged with the striker.

According to the technical solution provided by the embodiment of the present invention, a rotating shaft is rotatably installed on the bearing plate, the rotating shaft is parallel to the bearing plate and perpendicular to the first direction; a push plate is installed on the side wall of the rotating shaft, A third through hole is provided on the bearing plate between the rotating shaft and the head of the vehicle body;

A driving member is installed on the driving plate corresponding to the third through hole; when the driving plate is in the second lifting position, the driving member drives the push plate to rotate along the rotating shaft, so that the Among the angles between the push plate and the driving plate, the included angle pointing to the head of the vehicle body is an acute angle.

According to the technical solution provided by the embodiment of the present invention, a chute is opened on the driving plate, the driving member can be slidably installed in the chute along the first direction, and one end of the chute is connected to the driving A second elastic member is provided between the parts; a guiding mechanism is provided on the bottom of the bearing plate and the driving part, and the guiding mechanism is used to drive the driving part along the first direction when the driving plate is raised and lowered. slide.

According to the technical solution provided by the embodiments of the present invention, the brake mechanism includes:

A fixed frame, the fixed frame is connected to the drive plate by transmission; the fixed frame is provided with a sliding hole along the first direction; the two ends of the sliding hole are provided with fixing pieces;

a second guide rod, the second guide rod is installed between the two fixing parts;

a brake block, the brake block has a connecting portion and a braking portion, the connecting portion is slidably mounted on the second guide rod along the first direction, and the braking portion is used for contacting the ground For braking, a third elastic member is installed between the connecting portion and the fixing member.

According to the technical solution provided by the embodiment of the present invention, the bottom surface of the brake block is tooth-shaped, and the side of the brake block close to the collision surface is arc-shaped.

According to the technical solution provided by the embodiments of the present invention, a fourth elastic member is installed between the bearing plate and the driving plate.

According to the technical solution provided by the embodiments of the present invention, the bottom of the vehicle body is provided with a fourth through hole, and the wheel assembly is connected to the driving plate through the fourth through hole.

The beneficial effect of the present invention is that: the present invention provides a collision mechanism and a braking mechanism linked to the collision mechanism on the vehicle body, so that: when the transport vehicle collides with an obstacle, the collision surface receives an external force from the first direction , the driving surface of the collision mechanism drives the driving plate to move to the second lifting position, and then the driving plate drives the brake mechanism to contact the ground for braking; when the transport vehicle is in a natural state, the driving plate returns to the first lifting position. The lifting position, and then the drive plate drives the brake mechanism to recover, away from the ground to release the brake. Therefore, in the tunnel construction and transportation, when the transport vehicle is affected by inertia and the brakes are not in time to cause collision with obstacles, the brake mechanism contacts and brakes with the ground, which plays the role of auxiliary braking at the first time, reducing the impact during the collision. loss.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is the structural representation of the tunnel safety construction transportation device provided by the present invention;

Fig. 2 is the cross-sectional structure schematic diagram shown in Fig. 1;

Fig. 3 is a schematic diagram of the front sectional structure shown in Fig. 1;

Fig. 4 is a partially enlarged view of part A shown in Fig. 3;

Fig. 5 is a structural schematic diagram showing a chute on the drive plate shown in Fig. 4;

Fig. 6 is a schematic diagram of the installation structure of the brake block shown in Fig. 2 .

Labels in the figure:

1. Car body; 11. Loading plate; 12. Driving plate; 21. Transmission gear; 22. First driving rack; 23. Second driving rack; 31. Driving block; 32. Striking plate; 33. First Guide rod; 34, limit block; 35, slide block; 36, connecting rod; 41, rotating shaft; 42, push plate; 43, driving part; 44, chute; 51, fixed frame; The second guide rod; 54, the brake block; 61, the first elastic piece; 62, the second elastic piece; 63, the third elastic piece; 64, the fourth elastic piece.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

Please refer to Figure 1-Figure 6 for a tunnel safety construction transportation device provided by the present invention, including:

Car body 1, a bearing plate 11 for carrying materials is installed in the car body 1, and an installation space is formed between the carrier plate 11 and the bottom of the car body 1; a drive plate 12 can be lifted and installed in the installation space ; The drive plate 12 has a first lifting position and a second lifting position;

a wheel assembly, the wheel assembly is mounted on the bottom of the vehicle body 1;

A collision mechanism, the collision mechanism is installed on the head of the vehicle body 1 and connected to the drive plate 12, the collision mechanism has a collision surface and a driving surface; when the collision surface receives an external force from a first direction When the driving surface drives the driving plate 12 to move to the second lifting position; when the external force is removed, the driving plate 12 returns to the first lifting position; head pointing to tail;

Brake mechanism, the brake mechanism is installed on the bottom of the car body 1, and is in transmission connection with the drive plate 12; when the drive plate 12 is in the second lifting position, the brake mechanism contacts the ground to brake ; When the driving plate 12 is in the first lifting position, the brake mechanism is away from the ground to release the brake.

Specifically, slide grooves are provided on the opposite side walls in the installation space along the vertical direction, and sliders are provided on the drive plate 12 corresponding to the slide grooves, so that the drive plate 12 can be vertically direction up and down.

Specifically, a push handle is installed at the rear of the vehicle body 1, and a brake device is installed on the push handle, and the brake device is used to brake the wheel assembly. Further, the brake device is a hand brake.

Working principle: the present invention aims to solve the problem of the loss of transport vehicles and materials on them due to the impact of inertia and untimely braking during the process of transport vehicles colliding with obstacles during tunnel construction and transportation; The mechanism and the brake mechanism linked with the collision mechanism make:

When the transport vehicle collides with an obstacle, the collision surface is subjected to an external force from the first direction, and the driving surface of the collision mechanism drives the driving plate 12 to move to the second lifting position, and then the driving plate 12 drives the brake mechanism and ground contact braking;

When the transport vehicle is in a natural state, the drive plate 12 can be restored to the first lifting position, and then the drive plate 12 drives the brake mechanism to recover, away from the ground to release the brake.

Therefore, in the tunnel construction and transportation, when the transport vehicle is affected by inertia and the brakes are not in time to cause collision with obstacles, the brake mechanism contacts and brakes with the ground, which plays the role of auxiliary braking at the first time, reducing the impact during the collision. loss.

In some embodiments, the drive plate 12 is connected with a first return mechanism, so that when the external force is removed, the drive plate 12 returns to the first lifting position; further, the first return mechanism It is the fourth elastic member 64 disposed between the driving plate 12 and the bearing plate 11; specifically, the fourth elastic member is a spring.

In some embodiments, the bottom of the car body 1 is provided with a first through hole, and the brake mechanism is connected to the drive plate 12 through a transmission assembly; the transmission assembly includes:

a transmission gear 21, the transmission gear 21 is installed in the installation space rotatably along a rotation axis, the rotation axis is parallel to the bottom surface of the vehicle body 1;

The first driving rack 22, the first driving rack 22 is arranged along the second direction and meshes with one side of the transmission gear 21; the first driving rack 22 is fixedly connected with the driving plate 12; The second direction is perpendicular to the bottom surface of the vehicle body 1;

The second driving rack 23, the second driving rack 23 is arranged along the second direction and meshes with the other side of the transmission gear 21; The driving rack 23 is fixedly connected.

Specifically, the second lifting position is higher than the first lifting position.

working principle:

When the driving plate 12 is switched from the first lifting position to the second lifting position, the driving plate 12 rises, drives the transmission gear 21 to rotate counterclockwise, and then drives the second driving rack 23 to descend, because the second driving rack 23 is connected with the brake mechanism, and then the second driving rack 23 drives the brake mechanism to descend through the first through hole, and contact the ground for braking.

When the driving plate 12 is switched from the second lifting position to the first lifting position, the driving plate 12 is lowered, driving the transmission gear 21 to rotate clockwise, and then driving the second driving rack 23 to rise, so that the brake mechanism is far away from the ground to release brake.

In some embodiments, the installation space is provided with a second through hole corresponding to the head side of the vehicle body 1; the collision mechanism includes:

A driving block 31, the driving block 31 can be slidably installed in the second through hole along the first direction, the driving surface is an inclined slope and is arranged on the driving block 31, the driving surface and The bottom of the drive plate 12 is in abutment contact;

The collision plate 32 is arranged on the head of the vehicle body 1 and connected to the driving block 31 , and the collision surface is arranged on the side of the collision plate 32 away from the vehicle body 1 .

Specifically, the driving block 31 has an initial state and a collision state:

When the driving block 31 is in a collision state, the driving surface on the driving block 31 drives the driving plate 12 to switch to the second lifting position;

When the driving block 31 is in the initial state, it drives the driving plate 12 to switch to the first lifting position.

Specifically, when the collision surface of the collision plate 32 receives an external force from the first direction, it drives the driving block 31 to slide along the first direction, so that the driving block 31 is in a collision state; When the external force of the striking plate 32 is applied, the driving plate 12 drives the driving block 31 to return to the initial state;

Further, a second return mechanism is provided between the strike plate 32 and the side wall of the vehicle body 1, and the second return mechanism is used to further drive the drive block 31 to return to the position when the external force is removed. Describe the initial state.

Specifically, the second through hole is arranged at the bottom of the installation space corresponding to the head side of the vehicle body 1; a chute is provided on the inner bottom surface of the installation space along the first direction, and the drive block 31 is slidably installed in the sliding groove along the first direction.

In some embodiments, a limit assembly is provided between the vehicle body 1 and the strike plate 32, and the limit assembly is used to limit the drive block 31 and the strike plate 32;

Specifically, the strike plate 32 is hinged to the drive block 31, and the limit assembly includes:

A first guide rod 33, the first guide rod 33 is arranged along the second direction; both ends of the first guide rod 33 are provided with a limit block 34 for fixed connection with the head of the vehicle body 1;

A slider 35, the slider 35 is slidably mounted on the first guide rod 33 along the second direction, and a first elastic member 61 is installed between the slider 35 and the limiting block 34;

A connecting rod 36 , one end of the connecting rod 36 is hinged to the slider 35 , and the other end is hinged to the striking plate 32 .

Specifically, the first elastic member 61 is a spring.

Through the above structure, when the strike plate 32 receives an external force from the first direction, the strike plate 32 rotates along its hinge point with the connecting rod 36, and at the same time due to the strike plate 32 and the The drive block 31 is hinged, so that the impact plate 32 is inclined under force, and drives the drive block 31 to move along the first direction; when the external force is removed, under the elastic action of the first elastic member 61, the impact plate 32 The plate 32 and the driving block 31 return to the original state; during this process, the limiting blocks 34 located at both ends of the first guide rod 33 play a role of limiting the striking plate 32 .

Example 2

On the basis of Embodiment 1, in some embodiments, a rotating shaft 41 is rotatably installed on the carrying plate 11, and the rotating shaft 41 is parallel to the carrying plate 11 and perpendicular to the first direction; the rotating shaft 41 A push plate 42 is installed on the side wall, and a third through hole is provided on the bearing plate 11 between the rotating shaft 41 and the head of the vehicle body 1;

A driving member 43 is mounted on the driving plate 12 corresponding to the third through hole; when the driving plate 12 is in the second lifting position, the driving member 43 drives the push plate 42 along the rotating shaft 41 Rotate so that the included angle between the push plate 42 and the drive plate 12 pointing to the head of the vehicle body 1 is an acute angle.

Working principle: In the prior art, when the transport vehicle collides with an obstacle, under the influence of inertial force, the materials in the transport vehicle will tip forward, easily causing material loss. In this embodiment, through the above structure, when the driving plate 12 is switched from the first lifting position to the second lifting position (that is, when the collision surface receives an external force from the first direction), the driving member 43 on the driving plate 12 The push plate 42 that abuts on it rises, so that the included angle between the push plate 42 and the driving plate 12 that points to the head of the vehicle body 1 is an acute angle, thereby balancing the overturning tendency caused by the inertial force.

In some embodiments, the driving plate 12 is provided with a sliding slot 44, the driving member 43 is installed in the sliding slot 44 slidably along the first direction, and one end of the sliding slot 44 is connected to the sliding slot 44. A second elastic member 62 is provided between the driving parts 43; a guiding mechanism is provided on the bottom of the loading plate 11 and the driving part 43, and the guiding mechanism is used to drive the driving part when the driving board 12 is raised and lowered. 43 slides along the first direction.

Specifically, the second elastic member 62 is a spring;

Specifically, the guide mechanism includes a first guide provided on the driving member 43 and a second guide installed on the bottom of the bearing plate 11; the bottom of the first guide is provided with a first inclined guide surface , the second guide member is correspondingly provided with a second inclined guide surface;

When the driving member 43 moves upward, the first inclined guiding surface and the second inclined guiding surface abut against each other, so that the driving member 43 moves along the first direction, thereby raising the push plate 42 and the The included angle of the drive plate 12 further balances the tipping tendency produced by the inertial force.

Example 3

On the basis of Example 1, in some embodiments, the braking mechanism includes:

A fixed frame 51, the fixed frame 51 is in transmission connection with the drive plate 12; the fixed frame 51 is provided with a sliding hole along the first direction; the two ends of the sliding hole are provided with a fixing piece 52;

A second guide rod 53, the second guide rod 53 is installed between the two fixing parts 52;

A brake block 54, the brake block 54 has a connecting portion and a braking portion, the connecting portion is slidably mounted on the second guide rod 53 along the first direction, and the braking portion is used for For braking in contact with the ground, a third elastic member 63 is installed between the connecting portion and the fixing member 52 .

Specifically, the third elastic member 63 is a spring;

Through the above structure, when the brake part of the brake block 54 is in contact with the ground for braking, the third elastic member 63 between the connecting part of the brake block 54 and the fixing part 52 is compressed, thereby playing a role The role of energy consumption.

In some embodiments, the bottom surface of the brake block 54 is tooth-shaped, and the side of the brake block 54 close to the collision surface is arc-shaped. Prevent the brake block 54 from colliding with an obstacle and cause damage, thereby improving the reliability of the device.

Example 4

In some embodiments, a fourth elastic member 64 is installed between the carrying board 11 and the driving board 12 .

In some embodiments, the bottom of the vehicle body 1 is provided with a fourth through hole, and the wheel assembly is connected to the driving plate 12 through the fourth through hole.

Specifically, the wheel assembly includes a support rod and a gear mounted on the support rod; the support rod is fixedly connected to the driving plate 12 .

In this embodiment, the wheel assembly is connected to the driving plate 12 through the fourth through hole, so that when the driving plate 12 is switched from the first lifting position to the second lifting position, the driving plate 12 drives the wheel assembly to rise, thereby facilitating the brake mechanism to contact the ground for braking, and improving the braking effect.

The above description is only a preferred embodiment of the present invention and an illustration of the applied technical principle. It should be understood by those skilled in the art that the scope of the invention involved in the present invention is not limited to the technical solution formed by the specific combination of the above technical features, but also covers the technical solutions made by the above technical features without departing from the inventive concept. Other technical solutions formed by any combination of or equivalent features thereof. For example, a technical solution formed by replacing the above-mentioned features with technical features disclosed in the present invention (but not limited to) having similar functions.

Claims (7)

1. A tunnel safety construction transport device, characterized in that it comprises: The car body (1), the car body (1) is equipped with a bearing plate (11) for carrying materials, and an installation space is formed between the carrier plate (11) and the bottom of the car body (1); the A driving board (12) is mounted up and down in the installation space; the driving board (12) has a first lifting position and a second lifting position; the second lifting position is higher than the first lifting position; a wheel assembly, the wheel assembly is installed at the bottom of the vehicle body (1); A collision mechanism, the collision mechanism is installed on the head of the vehicle body (1) and connected to the drive plate (12), the collision mechanism has a collision surface and a driving surface; when the collision surface is received from the first When an external force is applied in one direction, the drive surface drives the drive plate (12) to move to the second lift position; when the external force is removed, the drive plate (12) returns to the first lift position; the drive plate (12) returns to the first lift position; The first direction is from the head of the vehicle body (1) to the rear; a brake mechanism, the brake mechanism is installed at the bottom of the vehicle body (1), and is connected to the drive plate (12) in transmission; when the drive plate (12) is in the second lifting position, the brake The mechanism is in contact with the ground for braking; when the drive plate (12) is in the first lifting position, the braking mechanism is kept away from the ground to release the brake; The bottom of the car body (1) is provided with a first through hole, and the brake mechanism is connected to the drive plate (12) through a transmission assembly; the transmission assembly includes: A transmission gear (21), the transmission gear (21) is installed in the installation space rotatably along a rotation axis, and the rotation axis is parallel to the bottom surface of the vehicle body (1); A first driving rack (22), the first driving rack (22) is arranged along the second direction and meshes with one side of the transmission gear (21); the first driving rack (22) is connected to the first driving rack (22) The drive plate (12) is fixedly connected; the second direction is perpendicular to the bottom surface of the vehicle body (1); The second driving rack (23), the second driving rack (23) is arranged along the second direction and meshes with the other side of the transmission gear (21); The hole is fixedly connected with the second driving rack (23); The installation space is provided with a second through hole corresponding to the head side of the car body (1); the collision mechanism includes: A driving block (31), the driving block (31) is slidably installed in the second through hole along the first direction, the driving surface is an inclined slope and is arranged on the driving block (31) , the driving surface is in abutting contact with the bottom of the driving plate (12); A strike plate (32), the strike plate (32) is arranged on the head of the vehicle body (1) and connected to the drive block (31), the collision surface is set One side of the vehicle body (1); A rotating shaft (41) is rotatably installed on the bearing plate (11), the rotating shaft (41) is parallel to the bearing plate (11) and perpendicular to the first direction; the side wall of the rotating shaft (41) A push plate (42) is installed, and a third through hole is provided on the bearing plate (11) between the rotating shaft (41) and the head of the vehicle body (1); A drive member (43) is installed on the drive plate (12) corresponding to the third through hole; when the drive plate (12) is at the second lifting position, the drive member (43) drives the The push plate (42) rotates along the rotating shaft (41), so that the angle between the push plate (42) and the drive plate (12) pointing to the head of the vehicle body (1) is an acute angle. 2. The tunnel safety construction transportation device according to claim 1, characterized in that, the collision plate (32) is hinged to the driving block (31), and the vehicle body (1) is connected to the collision plate (32) ) is provided with a limit assembly, the limit assembly includes: The first guide rod (33), the first guide rod (33) is arranged along the second direction; the two ends of the first guide rod (33) are provided with a Fixedly connected limit block (34); A slider (35), the slider (35) is installed on the first guide rod (33) slidably along the second direction, the slider (35) and the limit block (34 ) is installed with a first elastic member (61); A connecting rod (36), one end of the connecting rod (36) is hinged to the slider (35), and the other end is hinged to the striking plate (32). 3. The tunnel safety construction transportation device according to claim 1, characterized in that, a chute (44) is opened on the driving plate (12), and the driving member (43) can slide along the first direction installed in the chute (44), and a second elastic member (62) is provided between one end of the chute (44) and the driving member (43); the bottom of the bearing plate (11) and the The driving member (43) is provided with a guiding mechanism, and the guiding mechanism is used to drive the driving member (43) to slide along the first direction when the driving plate (12) is raised and lowered. 4. The tunnel safety construction transportation device according to claim 1, wherein the braking mechanism comprises: A fixed frame (51), the fixed frame (51) is connected to the drive plate (12) by transmission; the fixed frame (51) is provided with a sliding hole along the first direction; the two ends of the sliding hole A fixing piece (52) is provided; A second guide rod (53), where the second guide rod (53) is installed between the two fixing pieces (52); A brake block (54), the brake block (54) has a connection part and a brake part, and the connection part can be slid along the first direction and installed on the second guide rod (53), so The braking part is used for braking in contact with the ground, and a third elastic part (63) is installed between the connecting part and the fixing part (52). 5. The tunnel safety construction transportation device according to claim 4, characterized in that, the bottom surface of the brake block (54) is tooth-shaped, and the side of the brake block (54) close to the collision surface is an arc shape. 6. The tunnel safety construction transportation device according to any one of claims 1-5, characterized in that, a fourth elastic member (64) is installed between the bearing plate (11) and the driving plate (12). 7. The tunnel safety construction transportation device according to claim 6, characterized in that, the bottom of the car body (1) is provided with a fourth through hole, and the wheel assembly is connected to the driving plate through the fourth through hole (12) CONNECTIONS.

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