Waste transportation equipment for shallow-buried bias tunnel construction

Abstract

The application discloses a waste transportation equipment for shallow-buried bias tunnel construction, which comprises a material transportation box driven to walk along a given route; and further comprises a brake mechanism, wherein the brake mechanism comprises a brake rod arranged on the material transportation box, the brake rod is provided with a brake end downward in the height direction, the brake rod is driven to be displaced up and down in the height direction, and is locked at a set height, so that the brake end is anchored into the tunnel ground or the brake end is supported on the tunnel ground to position the material transportation box at a set position; the use stability of the transportation equipment can be improved, the safety of the waste transportation equipment in the application in the tunnel construction is improved, and the safe and efficient promotion of the tunnel construction under complex geological conditions is ensured.

Description

Technical Field

[0001] This invention relates to the field of waste transportation technology in tunnel construction, specifically to a waste transportation equipment for shallow-buried bias-pressure tunnel construction. Background Technology

[0002] In tunnel construction, especially in the waste transportation process under complex geological conditions such as shallow burial and bias pressure, the use of handcarts is not due to their technological advancement, but rather to their irreplaceable adaptability to extremely restricted and dynamically changing working environments.

[0003] Taking the classic single-sidewall pilot tunnel method in shallow-buried, biased-pressure tunnel construction as an example, this method divides a large cross-section into multiple small pilot tunnels to balance the bias and control deformation. The interior space of the initial pilot tunnel is extremely narrow, typically only allowing passage by manpower or very small machinery. Under these conditions, wheelbarrows, with their excellent flexibility, become almost the only tool capable of initial soil removal. Simultaneously, this method requires short advances and rapid support; wheelbarrows can be deployed at any time and quickly remove the small amount of soil generated during a single excavation, achieving close coordination with the support process. This avoids the inconvenience and high cost of scheduling large equipment, enabling a rapid start-up with minimal cost in the early stages of construction.

[0004] However, the use of handcarts in such high-risk environments presents significant inherent defects and safety risks. On the longitudinal slope of the pilot tunnel in a shallow-buried, biased-pressure tunnel, due to complex geological conditions, the objective existence of the slope, and the dynamic loading of the handcart, heavily loaded handcarts are extremely prone to slippage and landslides. More seriously, once out of control, the heavy-duty handcart may directly collide with the newly completed but not yet fully developed initial support structure, inducing local instability or even collapse, posing a dual threat to construction personnel and the project itself.

[0005] Therefore, to solve the above problems, there is a need for a waste transportation equipment for shallow buried biased tunnel construction that can improve the stability of the transportation equipment, enhance the safety of the waste transportation equipment in tunnel construction, and ensure the safe and efficient progress of tunnel construction under complex geological conditions. Summary of the Invention

[0006] In view of this, the purpose of this invention is to overcome the defects in the prior art and provide a waste transportation equipment for shallow buried biased tunnel construction, which can improve the stability of the transportation equipment, enhance the safety of the waste transportation equipment in tunnel construction, and ensure the safe and efficient progress of tunnel construction under complex geological conditions.

[0007] The present invention provides a waste transport equipment for shallow-buried biased tunnel construction, comprising a transport box driven to travel along a predetermined route; and a braking mechanism, the braking mechanism comprising a brake rod disposed on the transport box, the brake rod having a braking end pointing downward in the height direction, the brake rod being driven to move up and down in the height direction and being locked at a set height, so that the braking end is anchored into the tunnel ground or the braking end is supported on the tunnel ground to position the transport box at a set position.

[0008] Furthermore, the material box has a brake rod guide rail for guiding the brake rod to move up and down in the height direction.

[0009] Furthermore, a reset component is provided between the brake lever and the material box, and the reset component has a reset force for resetting the brake lever.

[0010] Furthermore, the material box has a limiting plate located at the top of the brake lever, and the braking mechanism also includes a wedge; the brake lever has a guide surface at an angle to the height direction, and the limiting plate has a limiting surface facing the guide surface;

[0011] The wedge is driven to wedge between the guide surface and the limiting surface, driving the brake lever downward in the height direction and locking it at a set height; or, the wedge is driven to retract between the guide surface and the limiting surface and reset the brake lever by a reset member.

[0012] Furthermore, the brake lever also has an upper support surface that runs through the top of the guide surface, and the wedge is driven to wedge into the space between the upper support surface and the limiting surface, so that the brake lever is supported by the limiting plate through the wedge; or, the wedge is driven to retract from the space between the upper support surface and the limiting surface, and the brake lever is reset by the reset member.

[0013] Furthermore, the outer surface of the wedge has a lubricating layer.

[0014] Furthermore, the material box has a wedge guide rail for guiding the displacement of the wedge blocks.

[0015] Furthermore, the brake lever guide rail has a functional chamfer, which is used to make the brake lever tilt along the tilting direction of the guide surface on the brake lever guide rail when the brake lever is driven by the wedge block.

[0016] Furthermore, the wedge has a sliding surface for abutting against the guide surface, the sliding surface having a curvature facing the guide surface.

[0017] Furthermore, the wedge has a support surface that runs through the top of the sliding surface, and the support surface is parallel to the guide surface.

[0018] The beneficial effects of the present invention are as follows: The waste transport equipment disclosed in the present invention for shallow buried biased tunnel construction, by setting a brake rod that is driven and anchored into the tunnel ground or supported on the tunnel ground, enables the transport box to be positioned in a set position. That is, during the loading process of the transport box in the sloping tunnel, there will be no slippage or landslide, which greatly meets the construction safety standards and can ensure the safe and efficient progress of tunnel construction under complex geological conditions. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of the structure viewed from below;

[0022] Figure 3 For the present invention Figure 1 A top-view structural diagram;

[0023] Figure 4 For the present invention Figure 1 A schematic diagram of the structure at point A. Detailed Implementation

[0024] Figures 1-4 As shown in the figure, the waste transport equipment for shallow buried biased tunnel construction in this embodiment includes a driven material transport box 1.

[0025] In this embodiment, the material container 1 is driven to travel along a predetermined route by a walking mechanism. The top of the material container 1 is open, a handrail 11 is provided on the rear side of the material container 1, and a discharge plate that can be controlled to open or close is provided on the front side of the material container 1. The walking mechanism includes a set of steering wheels 12 located on the rear side of the material container 1 near the handrail 11, and a set of walking wheels 13 located on the front side of the material container 1 away from the handrail 11. The walking mechanism also includes a set of anti-sinking triangular tracks 14 disposed between the steering wheels 12 and the walking wheels 13, wherein the anti-sinking triangular tracks 14 located between the steering wheels 12 and the walking wheels 13 are closer to the steering wheels 12 to improve the stability of the material container 1 during transport. The steering wheel 12 is used to rotate the material container 1 in a predetermined direction. This can be achieved using any type of omnidirectional wheel or a traveling wheel 13 with forked arms, which will not be elaborated further here. The traveling wheel 13 is used to support the material container 1 in forward or backward movement. A set of traveling wheels 13 is connected to the bottom of the material container 1 via an intermediate shaft. Any type of existing technology can be used to perform the walking function, which will not be elaborated further here. The steering wheel 12 and traveling wheel 13 are preferably wide solid tires to improve the carrying capacity of the material container 1, enhance material transport stability, and improve construction safety. The anti-sinking triangular track 14 can be any type of existing technology used in this solution and is connected via a corresponding drive shaft to improve the carrying capacity and walking ability of the material container 1, especially suitable for use in the special geological environment of shallow-buried biased tunnels, which will not be elaborated further here. Of course, the material box 1 with walking function can also be any kind of handcart from the existing technology. The handcart is preferably a handcart with wide solid tires, which is conducive to dispersing pressure and reducing the sinking of the transport vehicle, so as to be suitable for the special geological environment of this solution. This will not be elaborated further here.

[0026] In this embodiment, a braking mechanism is also included. The braking mechanism includes a brake rod 2 disposed on the material box 1. The brake rod 2 has a braking end 21 pointing downwards in the height direction. The brake rod 2 is driven to move up and down in the height direction and is locked at a set height so that the braking end 21 is anchored into the tunnel floor or the braking end 21 is supported on the tunnel floor and the material box is positioned in a set position. The braking end 21 can be mounted on or formed on the brake rod 2. The structure of the braking end 21 includes a plate-like structure with several anchors, suitable for anchoring into a sloping tunnel; or a plate-like structure with several supporting protrusions, suitable for supporting the tunnel floor; or a strut structure with a pointed tip corresponding to support or anchor into a sloping tunnel, etc. The structure of the brake rod 2 with the braking end 21 is preferably designed to achieve the function of positioning the material box 1 in a set position, which will not be elaborated further here. The power source for driving the brake lever 2 can be any existing electric push rod or hydraulic cylinder, etc., which can apply power to the brake lever 2. The structure is simple and readily available, offering advantages such as low cost and ease of application, and will not be elaborated further here. By setting the brake lever 2 to be driven and anchored into or supported on the tunnel surface, the material container 1 can be positioned in a set location. This prevents the material container 1 from slipping or sliding during loading on a sloped tunnel, greatly meeting construction safety standards and ensuring the safe and efficient progress of tunnel construction under complex geological conditions.

[0027] In this embodiment, the brake lever 2 is in the shape of a rectangular cube column, and the brake end 21 is in the shape of a square pyramid located at the bottom of the brake lever 2. The smaller end of the square pyramid brake end 21 faces upward and is connected to the brake lever 2. The brake lever 2 and the brake end 21 are integrally formed in this solution. The bottom surface of the brake end 21 has several anchor pins 22 with their tips facing downward, which facilitates anchoring to the tunnel ground, provides a favorable support foundation, and prevents the material box 1 from slipping.

[0028] In this embodiment, the material container 1 has a brake rod guide rail 3 for guiding the brake rod 2 to move vertically in the height direction. The purpose of the brake rod guide rail 3 is to provide reliable guidance for the brake rod 2, improve operational reliability, and enable the brake rod 2 to move stably and reliably upward or downward in a predetermined direction. In this solution, the brake rod guide rail 3 is welded to the outer side of the side plate of the material container 1 and is located between the anti-sinking triangular track 14 and the traveling wheel 13 on the corresponding side. The brake rod 2 passes through the brake rod guide rail 3 and is set in the material container 1. The structural layout of the brake rod 2 between the anti-sinking triangular track 14 and the traveling wheel 13 through the brake rod guide rail 3 can further improve the stress stability of the material container 1 and further ensure construction safety.

[0029] In this embodiment, a reset component 4 is provided between the brake lever 2 and the material box 1. The reset component 4 has a reset force for resetting the brake lever 2. The reset component 4 can be a power device, such as a power push rod or hydraulic cylinder, or a component with a self-resetting function, such as a spring or elastic band, preferably satisfying the function of resetting the brake lever 2. Further details are omitted here. In this solution, the reset component 4 is a spring with a self-resetting function, reducing manufacturing costs. In this solution, two springs are grouped together, and the two springs in the group are respectively positioned lower on the front and rear sides of the brake end 21, which facilitates the application of the reset force to the brake end 21 and improves the driving stability of the brake lever 2. Specifically, the front end of the brake lever guide rail 3 located in the material box 1 protrudes forward to form the front lifting lug of the material box, and the rear end of the brake lever guide rail 3 located in the material box 1 protrudes backward to form the rear lifting lug of the material box; the front end of the brake end 21 protrudes forward to form the front lifting lug of the brake lever, and the rear end of the brake lever guide rail 3 located in the material box 1 protrudes backward to form the rear lifting lug of the material box; one of the springs in a set is connected to the front lifting lug of the material box and the front lifting lug of the brake lever, and the other spring in a set is connected to the rear lifting lug of the material box and the rear lifting lug of the brake lever.

[0030] In this embodiment, the material box 1 has a limiting plate 5 located at the top of the brake lever 2, and the braking mechanism further includes a wedge 6; the brake lever 2 has a guide surface 23 at an angle to the height direction, and the limiting plate 5 has a limiting surface 51 facing the guide surface 23; the wedge 6 is driven to wedge into the space between the guide surface 23 and the limiting surface 51, driving the brake lever 2 downward in the height direction and locking it at a set height; or, the wedge 6 is driven to retract from the space between the guide surface 23 and the limiting surface 51, and the brake lever 2 is reset by the reset member 4. By using the slope of the guide surface 23 and the reset component 4, the wedge block 6 can be dynamically adjusted to move the brake lever 2 downward or upward by wedging or retracting between the guide surface 23 and the limiting surface 51. This structural design allows part of the force of the brake lever 2 to be transmitted to the material box 1 where the limiting plate 5 is located, reducing the load on the power source, which in turn reduces the force output of the power source, thus improving the service life of the power source and providing an advantage in power source selection.

[0031] In this embodiment, the brake lever 2 also has an upper support surface 24 that runs through the top of the guide surface 23. The wedge 6 is driven to wedge into the space between the upper support surface 24 and the limiting surface 51, so that the brake lever 2 is supported by the limiting plate 5 through the wedge 6; or, the wedge 6 is driven to retract from the space between the upper support surface 24 and the limiting surface 51, and the brake lever 2 is reset by the reset member 4. The upper support surface 24 is parallel to the limiting surface 51. In the reset state of the brake lever 2, the upper support surface 24 and the limiting surface 51 are in contact to ensure the stability of the brake lever 2 when it is not in use on the material box 1. At the same time, in the use state, the wedge 6, which is wedged into the space between the upper support surface 24 and the limiting surface 51, is clamped and pressed by the two. In this state, the wedge 6 is used as a pad, which completely transmits the force of the brake lever 2 to the material box 1, and has a protective effect on the power source. In this state, there is no need to apply force to resist the brake lever 2, which can further improve the economy of the power source application.

[0032] In this embodiment, the material box 1 has a wedge guide rail 7 for guiding the displacement of the wedge 6, so as to further limit the displacement of the wedge 6 and drive the brake rod 2 more reliably, thereby improving the stability of the mechanism operation.

[0033] In this embodiment, the wedge 6 is located behind the brake lever and approximately above the corresponding anti-sinking triangular track 14, which makes the center of gravity of the overall waste transport equipment closer to the center and improves the stability of use.

[0034] In this embodiment, the limiting plate 5 and the wedge guide rail 7 are arranged parallel to each other and parallel to the length direction of the material box 1. The limiting plate 5 is located at the top of one side of the material box 1, and the wedge guide rail 7 is located at the lower middle part of the height direction of the material box 1 on the same side. The wedge guide rail 7 is connected to the brake rod guide rail 3, and the bottom of the brake rod guide rail 3 extends to the bottom of the material box 1 in the height direction. The wedge 6 is arranged between the limiting plate 5 and the wedge guide rail 7 and is guided to move forward or backward along the length direction of the material box 1.

[0035] In this embodiment, the bottom surface of the limiting plate 5 is the limiting surface 51, which is perpendicular to the height direction. The top surface of the brake rod is the upper support surface 24, which is parallel to the limiting surface 51. The guide surface 23 of the brake rod is located at the bottom of the upper support surface 24, and the top edge of the guide surface 23 and the upper support surface 24 are smoothly transitioned by a curved surface. Specifically, the top end of the brake rod protrudes along the length of the conveying box 1 toward the wedge block 6, and the limiting surface 51 is inclined from top to bottom toward the wedge block 6. In the brake rod reset state, the upper support surface 24 and the limiting surface 51 abut against each other, and the wedge block 6 has a support surface that supports the guide surface 23, which is parallel to the guide surface 23.

[0036] In this embodiment, the brake lever guide rail 3 has a functional chamfer. When the brake lever 2 is driven by the wedge block 6, the functional chamfer is used to make the brake lever 2 tilt along the tilting direction of the guide surface 23 on the brake lever guide rail 3. The functional chamfer is used to make the brake lever 2 descend to the tunnel ground at a certain angle, reducing the soil breaking resistance of the brake end 21 and ensuring that the brake lever is reliably driven. Specifically, the functional chamfer includes an upper functional chamfer 31 located on the front side of the top of the brake lever guide rail 3 and a lower functional chamfer 32 located on the rear side of the bottom of the brake lever guide rail 3; the angles of the upper and lower functional chamfers are the same and do not exceed 10°. Preferably, in this solution, both the upper and lower functional chamfers are 10°. The upper and lower functional chamfers transition to the inner surface of the brake lever guide rail 3 through corresponding arc angles, further ensuring the smoothness of the tilting of the brake lever 2.

[0037] In this embodiment, the wedge 6 also has a sliding surface 62 for abutting against the guide surface 23, the sliding surface 62 having a curvature facing the guide surface 23. The support surface of the wedge 6 is continuous with the top of the sliding surface 62; the curvature of the sliding surface 62 facing the guide surface 23 causes the brake rod to tilt along the tilt direction of the guide surface 23 before being driven downward by the wedge 6; by sliding on the guide surface 23 through the sliding surface 62, the brake rod is driven downward in a line contact manner, reducing driving resistance; and due to the presence of the functional chamfer, the brake end 21 is driven and anchored into the tunnel ground at a certain angle, and is corrected and returned to its original position after the wedge 6 is wedged into the limiting surface 51 and the upper support surface 24, so that the brake rod and the tunnel ground form a stable support and anchoring structure, ensuring construction safety.

[0038] In this embodiment, the top of the front end of the wedge 6 protrudes forward, and the surface of the wedge 6 supported by the upper support surface 24 is the lower support surface 61. The lower support surface 61 is continuous at the bottom of the sliding surface 62, and the lower support surface 61 is parallel to the upper support surface 24. The wedge guide rail 7 has a functional surface 71 facing the limiting surface 51 and parallel to the limiting surface 51. The wedge 6 is located between the limiting surface 51 and the functional surface 71, and the wedge 6 has a top surface that fits the limiting surface 51 and a bottom surface that fits the functional surface 71, so that the wedge 6 is guided not only by the wedge guide rail 7 but also by the limiting plate 5, thereby improving its displacement reliability. The outer surface of the wedge 6 has a lubricating layer, which is used to reduce the friction between the wedge 6 and the corresponding component during contact and relative displacement. It can be lubricating oil, lubricating coating, paint, or mechanical ball bearing structure, etc. In this solution, the lubricating layer is any solid dry film lubricant suitable for the complex environment of this solution in the prior art, which will not be described in detail here.

[0039] In this embodiment, the power source for driving the wedge 6 is any hydraulic cylinder in the prior art that is suitable for this solution. The hydraulic cylinder 8 is set on the wedge guide rail 7, and the push rod of the hydraulic cylinder is located on the rear side of the wedge 6 and is fixedly connected to the wedge 6. It has the advantages of low cost, reliable application and simple operation, which will not be described in detail here.

[0040] In this embodiment, there are two sets of braking mechanisms, which are respectively arranged on both sides of the width direction of the material box 1 and are symmetrical, thereby improving the reliability of the support for the material box 1 and enhancing construction safety.

[0041] In this embodiment, a toolbox 15 located in front of the material handling box is also included. The toolbox 15 has an open top or a cover on the top. In this embodiment, the toolbox 15 has an open top. The toolbox is located in front of the wedge guide rail 7 and the limiting plate 5, and is connected to both of them and protrudes laterally outward from the material handling box, which improves the overall structural compactness and enhances the functionality of the material handling box.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A waste transport equipment for shallow-buried, bias-pressure tunnel construction, characterized in that: It includes a material transport box that is driven to move; it also includes a braking mechanism, the braking mechanism including a brake rod disposed on the material transport box, the brake rod having a braking end facing downward in the height direction, the brake rod being driven to move up and down in the height direction and being locked at a set height, so that the braking end is anchored into the tunnel ground or the braking end is supported on the tunnel ground to position the material transport box in a set position.

2. The waste transport equipment for shallow-buried bias-pressure tunnel construction according to claim 1, characterized in that: The material box has a brake rod guide rail for guiding the brake rod to move up and down in the height direction.

3. The waste transport equipment for shallow-buried bias-pressure tunnel construction according to claim 1, characterized in that: A reset element is provided between the brake lever and the material box, and the reset element has a reset force for resetting the brake lever.

4. The waste transport equipment for shallow-buried bias-pressure tunnel construction according to claim 3, characterized in that: The material box has a limiting plate located at the top of the brake lever, and the braking mechanism also includes a wedge; the brake lever has a guide surface at an angle to the height direction, and the limiting plate has a limiting surface facing the guide surface; The wedge is driven to wedge between the guide surface and the limiting surface, driving the brake lever downward in the height direction and locking it at a set height; or, the wedge is driven to retract between the guide surface and the limiting surface and reset the brake lever by a reset member.

5. The waste transport equipment for shallow-buried bias-pressure tunnel construction according to claim 4, characterized in that: The brake lever also has an upper support surface that runs through the top of the guide surface. The wedge is also driven to wedge into the space between the upper support surface and the limiting surface, so that the brake lever is supported by the limiting plate through the wedge; or, the wedge is driven to retract from the space between the upper support surface and the limiting surface, and the brake lever is reset by the reset member.

6. The waste transport equipment for shallow-buried bias-pressure tunnel construction according to claim 4, characterized in that: The outer surface of the wedge has a lubricating layer.

7. The waste transport equipment for shallow-buried bias-pressure tunnel construction according to claim 4, characterized in that: The material box has a wedge guide rail for guiding the displacement of the wedge blocks.

8. The waste transport equipment for shallow-buried bias-pressure tunnel construction according to claim 4, characterized in that: The brake lever guide rail has a functional chamfer. When the brake lever is driven by the wedge block, the functional chamfer is used to make the brake lever tilt along the tilting direction of the guide surface on the brake lever guide rail.

9. The waste transport equipment for shallow-buried bias-pressure tunnel construction according to claim 8, characterized in that: The wedge has a sliding surface for abutting against the guide surface, the sliding surface having a curvature facing the guide surface.

10. The waste transport equipment for shallow-buried bias-pressure tunnel construction according to claim 9, characterized in that: The wedge has a support surface that runs through the top of the sliding surface and is parallel to the guide surface.

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