Tunnel excavation trolley

Abstract

The utility model provides a tunnel excavation trolley which comprises a trolley frame body provided with a top working platform and a side working platform. The sliding rod extends in the vertical direction, the sliding rod comprises a first end and a second end which are oppositely arranged, the first end is connected with the top working platform, the second end is spaced from the ground where the tunnel excavation trolley is located in the vertical direction, and the second end is provided with a buffer pad of an air bag structure; the buffer cushion has a contraction state folded at the second end and an expansion state extending out of the second end in the horizontal direction; and when the buffer cushion is in the unfolded state, the buffer cushion is of an elastic structure. According to the tunnel excavation trolley provided by the invention, when a tunnel collapses, a worker can firstly switch the buffer pad to an unfolded state, and the worker located on the top working platform can quickly slide down along the sliding rod to realize escape. And the worker sliding down along the sliding rod can fall on the buffer cushion, the elastic buffer cushion can provide buffering for the falling worker, and the personal safety of the worker can be further guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction equipment, and in particular to a tunnel excavation trolley. Background Art

[0002] During tunnel excavation, construction workers use a tunnel excavation trolley for drilling and blasting. Typically, the platform on a tunnel excavation trolley is at a significant height difference from the ground. To facilitate access, the trolley is equipped with a zigzag staircase extending from the platform to the ground.

[0003] However, it takes a long time for construction workers to move from the work platform to the ground via stairs. When the tunnel collapses, it is difficult for construction workers to escape quickly via stairs, and their personal safety is difficult to guarantee. Utility Model Content

[0004] In view of this, the purpose of this application is to propose a tunnel excavation trolley to at least partially solve the problem that it is difficult for construction workers to quickly escape from the work platform of the tunnel excavation trolley, making it difficult to ensure the personal safety of construction workers.

[0005] Based on the above-mentioned purpose, the present application provides a tunnel excavation trolley, comprising: a trolley frame, comprising a door-shaped main body, the door-shaped main body extending along a first direction, a top working platform being provided on the top of the door-shaped main body, and side working platforms being connected to both sides of the door-shaped main body along a second direction; a first staircase is connected between the side working platform and the top working platform, and the side working platform is also connected to a second staircase extending to the bottom of the door-shaped main body; the bottom of the door-shaped main body is connected to a driving wheel for driving the door-shaped main body to move along the first direction, and the second direction is perpendicular to the first direction; a sliding rod extending in a vertical direction, the sliding rod comprising a first end and a second end arranged opposite to each other, the first end being connected to the top working platform, the second end being spaced apart from the ground where the tunnel excavation trolley is located in a vertical direction, and the second end being provided with a buffer pad with an airbag structure; the buffer pad comprises a contracted state folded at the second end, and an expanded state extending out of the second end in a horizontal direction; when the buffer pad is in the expanded state, the buffer pad is an elastic structure.

[0006] Optionally, the bottom panel of the top working platform is connected to an air pump, the air outlet of the air pump is connected to the air inlet of the cushion through a hose, and the top working platform is provided with a switch for starting the air pump; the air pump is used to transport gas into the cushion to switch the cushion to the expanded state.

[0007] Optionally, the switch is close to the connection position between the sliding rod and the top working platform.

[0008] Optionally, the switch is arranged on the top panel of the top working platform.

[0009] Optionally, the top working platform is connected to a protective cover, which has a protective state and an open state; when the protective cover is in the protective state, the orthographic projection of the protective cover on the top panel of the top working platform covers the switch; when the protective cover is in the open state, the orthographic projection of the protective cover on the top panel of the top working platform does not overlap with the switch.

[0010] Optionally, the interior of the sliding rod is hollow, and the hose is passed through the interior of the sliding rod.

[0011] Optionally, the tunnel excavation trolley includes a rotating beam, which is horizontally arranged and has one end hinged to the top working platform and the other end connected to the first end of the sliding rod; the sliding rod is connected to the top working platform through the rotating beam.

[0012] Optionally, along the vertical direction, the rotating beam is located above the top working platform.

[0013] Optionally, the top working platform is connected to a protective frame protruding from the top plate surface, and the protective frame is close to the connection position between the sliding rod and the top working platform.

[0014] Optionally, along the first direction, the sliding rod is close to the first stair.

[0015] As can be seen from the above, the tunnel excavation trolley provided by the present application has a retracted cushion connected to the second end of the slide bar when the tunnel has not collapsed. This ensures that the second end is separated from the ground, preventing the cushion or the second end from contacting the ground and hindering the movement of the tunnel excavation trolley. It also reduces friction damage to the cushion due to contact with the ground, helping to extend the service life of the cushion. If the tunnel collapses, workers can first switch the cushion to an expanded state, allowing workers on the top working platform to quickly slide down the slide bar to escape. At the same time, workers sliding down the slide bar will land on the expanded cushion. The elastic cushion can provide a cushion for the falling worker, preventing them from being injured by landing directly on the ground, further ensuring their personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in this application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are merely embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a three-dimensional schematic diagram of a tunnel excavation trolley according to an embodiment of the present application, in which the buffer pad is in a retracted state;

[0018] Figure 2 This is a front view schematic diagram of a tunnel excavation trolley according to an embodiment of the present application, in which the buffer pad is in a retracted state;

[0019] Figure 3 This is a three-dimensional schematic diagram of a buffer pad of a tunnel excavation trolley according to an embodiment of the present application in an unfolded state;

[0020] Figure 4 This is a side view schematic diagram of a tunnel excavation trolley according to an embodiment of the present application, in which the buffer pad is in an unfolded state;

[0021] Figure 5 This is a front view schematic diagram of a tunnel excavation trolley according to an embodiment of the present application, in which the buffer pad is in an unfolded state;

[0022] Figure 6 This is a cross-sectional schematic diagram of the protective cover of the tunnel excavation trolley according to an embodiment of the present application in a protective state;

[0023] Figure 7 This is a cross-sectional schematic diagram showing the protective cover of the tunnel excavation trolley in an embodiment of the present application in an open state.

[0024] Description of reference numerals:

[0025] 100, trolley frame; 110, door-shaped main body; 111, top beam; 112, vertical beam; 120, top working platform; 121, top deck; 122, bottom deck; 130, side working platform; 140, first staircase; 150, second staircase; 160, drive wheel;

[0026] 200, slide bar; 210, first end; 220, second end;

[0027] 300, cushion; 400, rotating beam;

[0028] 500, air pump; 510, switch;

[0029] 600, protective cover; 700, protective frame. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0031] It should be noted that the relative arrangement of the components, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

[0032] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0034] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] In view of this, if Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The tunnel excavation trolley provided in the embodiment of the present application includes: a trolley frame 100, including a door-shaped body 110, the door-shaped body 110 along a first direction (such as Figure 1 The top of the door-shaped body 110 is provided with a top working platform 120, and the door-shaped body 110 extends in the second direction (such as Figure 1 Side working platforms 130 are respectively connected on both sides of the Y direction in the direction of the tunnel excavation trolley; a first staircase 140 is connected between the side working platform 130 and the top working platform 120, and the side working platform 130 is also connected to a second staircase 150 extending to the bottom of the door-type body 110; the bottom of the door-type body 110 is connected to a driving wheel 160 for driving the door-type body 110 to move in a first direction, and the second direction is perpendicular to the first direction; the sliding rod 200 extends in the vertical direction, and the sliding rod 200 includes a first end 210 and a second end 220 arranged opposite to each other, the first end 210 is connected to the top working platform 120, and the second end 220 is spaced from the ground where the tunnel excavation trolley is located in the vertical direction, and the second end 220 is provided with a buffer pad 300 with an airbag structure; the buffer pad 300 includes a contracted state folded at the second end 220, and an expanded state extending from the second end 220 in the horizontal direction; when the buffer pad 300 is in the expanded state, the buffer pad 300 is an elastic structure.

[0036] Exemplarily, the door-shaped body 110 includes a plurality of horizontally arranged top beams 111, and the plurality of top beams 111 are spaced apart along a first direction. Both ends of each top beam 111 are connected to vertically arranged vertical beams 112. A top beam 111 and two vertical beams 112 connected to the ends of the top beam 111 can be constructed into a door-shaped structure.

[0037] For example, Figure 1 and Figure 2 , the first staircase 140 and the second staircase 150 are in a zigzag structure.

[0038] Exemplarily, the driving wheel 160 includes rollers hinged to both sides of the door-shaped body 110 .

[0039] Illustratively, at least a portion of the driving wheels 160 include a motor capable of driving the rollers to rotate.

[0040] For example, the first end 210 may be directly or indirectly connected to the top working platform 120 .

[0041] For example, the first end 210 may be fixedly connected, hingedly connected, or detachably connected to the top working platform 120 .

[0042] For example, the cushion 300 can be switched between the expanded state and the contracted state by means of inflation and deflation, or can be switched between the expanded state and the contracted state by means of skeleton expansion and skeleton folding.

[0043] During use, workers can climb onto the side working platform 130 from the ground where the tunnel excavation trolley is located via the second staircase 150 , and then climb onto the top working platform 120 from the side working platform 130 via the first staircase 140 .

[0044] During normal use, the cushion 300 is in a retracted state, with the second end 220 positioned above the ground with a certain gap therebetween, so that when the tunnel excavation trolley moves, the second end 220 is prevented from contacting the ground.

[0045] When a tunnel collapse occurs, workers can switch the cushion 300 to the expanded state. At this point, the expanded cushion 300 is located between the second end 220 and the ground, and is horizontally expanded into a large, elastic structure. Workers can quickly slide down from the top work platform 120 along the slide bar 200. When they approach the ground, they will first come into contact with the expanded cushion 300. Because the expanded cushion 300 is elastic, it can cushion the rapidly falling worker and prevent injury. Once the worker descends from the cushion 300, they reach the ground and can quickly escape to the outside of the tunnel or a safe area.

[0046] In the tunnel excavation trolley provided by this embodiment, when the tunnel has not collapsed, the cushion pad 300 connected to the second end 220 of the slide bar 200 is in a retracted state, ensuring that the second end 220 is separated from the ground. This prevents the cushion pad 300 or the second end 220 from contacting the ground, thereby preventing the movement of the tunnel excavation trolley from being hindered. This also reduces frictional damage to the cushion pad 300 caused by contact with the ground, thereby extending the service life of the cushion pad 300. In the event of a tunnel collapse, workers can first deploy the cushion pad 300, allowing workers on the top working platform 120 to quickly slide down the slide bar 200 to escape. At the same time, workers sliding down the slide bar 200 will land on the deployed cushion pad 300. The elastic cushion pad 300 provides cushioning for the falling worker, preventing injury from directly hitting the ground and further ensuring the worker's personal safety.

[0047] like Figure 2 and Figure 5 In some embodiments, the bottom panel 122 of the top working platform 120 is connected to an air pump 500, the air outlet of the air pump 500 is connected to the air inlet of the cushion 300 through a hose, and the top working platform 120 is provided with a switch 510 for starting the air pump 500; the air pump 500 is used to deliver gas into the cushion 300 to switch the cushion 300 to the expanded state.

[0048] When a tunnel collapse occurs, a worker on the top working platform 120 can trigger a switch 510 on the top working platform 120 to start the air pump 500. The air pump 500 can pump air from the environment (or the space in the compressed air source) into the contracted cushion 300 through a hose. The continuously injected air will force the cushion 300 to gradually expand until the cushion 300 switches to the expanded state.

[0049] Using air as the medium for filling the cushion 300 has a low cost, and the medium does not need to be reserved in advance. This can avoid the problem of the cushion 300 being unable to switch to the expanded state due to leakage of the pre-reserved medium, which helps to improve the reliability of the cushion 300 and ensure the personal safety of the staff.

[0050] like Figure 2 and Figure 5 In some embodiments, the switch 510 is located near the connection position between the slide bar 200 and the top working platform 120 .

[0051] When a tunnel collapse occurs, workers on the top working platform 120 can trigger the switch 510 while moving toward the slide bar 200. Once the workers reach the slide bar 200, the cushion 300 will have already been deployed, allowing them to quickly slide down the slide bar 200 to escape. Placing the switch 510 close to the slide bar 200 shortens the workers' escape distance, saves escape time, and helps reduce the risk of injury to workers in a collapsed tunnel.

[0052] like Figure 2 and Figure 5 In some embodiments, the switch 510 is disposed on the top panel 121 of the top working platform 120 .

[0053] The top panel 121 of the top working platform 120 is the surface on which the workers step when on the top working platform 120. The switch 510 is arranged on the top panel 121 of the top working platform 120. When the workers move toward the slide bar 200, they can trigger the switch 510 by stepping on the switch 510, thereby further saving escape time.

[0054] At the same time, the switch 510 is set on the top plate 121 of the top working platform 120. When the tunnel collapses, even if the workers bend over to move, they can still trigger the switch 510 smoothly.

[0055] like Figure 6 and Figure 7 In some embodiments, the top working platform 120 is connected to a protective cover 600, which has a protective state and an open state; when the protective cover 600 is in the protective state, the orthographic projection of the protective cover 600 on the top panel 121 of the top working platform 120 covers the switch 510; when the protective cover 600 is in the open state, the orthographic projection of the protective cover 600 on the top panel 121 of the top working platform 120 does not overlap with the switch 510.

[0056] For example, the protective cover 600 may be a glass cover, and at least a portion of the glass cover is a weak area that is easily broken.

[0057] When the protective cover 600 is in the protective state, it can cover the switch 510 to prevent the staff on the top working platform 120 from accidentally touching the switch 510. When the switch 510 needs to be triggered, the staff can break the protective cover 600, that is, the protective cover 600 switches to the open state to expose the switch 510, making it easier for the staff to trigger the switch 510.

[0058] In some embodiments, the interior of the sliding rod 200 is hollow, and the hose is passed through the interior of the sliding rod 200 .

[0059] Exemplarily, the slide rod 200 may be a circular tube structure, and an opening connected to the interior is provided on the outer circular side wall of the slide rod 200 near the first end 210 , and a hose connected to the air outlet of the air pump 500 may pass through the opening and extend into the interior of the slide rod 200 .

[0060] Exemplarily, the second end 220 of the slide bar 200 may have an opening communicating with the interior of the slide bar 200 , the retracted cushion 300 may be installed at the opening, and the air inlet of the cushion 300 may be connected to the hose inside the slide bar 200 .

[0061] The hose for supplying air to the buffer pad 300 is arranged inside the slide bar 200. On the one hand, the slide bar 200 can protect the hose to prevent the hose from leaking due to damage; on the other hand, it can also make the structure of the tunnel excavation trolley more compact.

[0062] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 In some embodiments, the tunnel excavation trolley includes a rotating beam 400, which is horizontally arranged and hinged to the top working platform 120 at one end and connected to the first end 210 of the sliding rod 200 at the other end; the sliding rod 200 is connected to the top working platform 120 through the rotating beam 400.

[0063] For example, the rotating beam 400 may be hinged to the top working platform 120 via a rotating shaft connected to the rotating beam 400 .

[0064] For example, the rotating beam 400 may be fixed to the first end 210 of the sliding rod 200 by welding.

[0065] For example, the hinged position between the rotating beam 400 and the top working platform 120 may be close to the vertical beam 112 of the door-shaped body 110 .

[0066] by Figure 2 The structure and direction shown are used as an example for explanation. When the slide bar 200 is not in use, the rotating beam 400 can be manually driven to move the slide bar 200 to one side of the door-type body 110 to ensure that the staff or vehicles on the ground can pass through the door-type body 110 smoothly to avoid obstruction caused by the slide bar 200.

[0067] like Figure 4 and Figure 5 When the slide bar 200 needs to be used, the staff on the top working platform 120 can manually drive the rotating beam 400 to rotate horizontally and adjust the slide bar 200 to a suitable position so that the staff on the top working platform 120 can slide down smoothly along the slide bar 200.

[0068] like Figure 1、 Figure 2 and Figure 3 In some embodiments, the rotating beam 400 is located above the top working platform 120 .

[0069] The rotating beam 400 is set above the top working platform 120. The staff on the top working platform 120 can more conveniently manually drive the rotating beam 400 to rotate to adjust the position of the slide bar 200, ensuring that the staff can smoothly slide down from the top working platform 120 along the slide bar 200, thereby escaping safely and quickly.

[0070] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 In some embodiments, the top working platform 120 is connected to a protective frame 700 protruding from the top panel 121 , and the protective frame 700 is close to the connection position between the sliding rod 200 and the top working platform 120 .

[0071] Exemplarily, when the sliding rod 200 is connected to the top working platform 120 through the rotating beam 400 , the protection frame 700 is close to the connection position between the rotating beam 400 and the top working platform 120 .

[0072] Exemplarily, one or two protective frames 700 may be provided. When two protective frames 700 are provided, the two protective frames 700 are spaced apart, and the gap distance between the two protective frames 700 meets the requirements for workers to pass through.

[0073] The workers on the top working platform 120 can pass through or around the protective frame 700 to reach the position of the slide bar 200. When the workers use the slide bar 200, the protective frame 700 can support the falling rocks above to protect the workers who are using the slide bar 200, which helps to increase the probability of successful escape of the workers and further ensure their personal safety.

[0074] like Figure 1 and Figure 3 In some embodiments, along the first direction, the sliding bar 200 approaches the first stair 140 .

[0075] Based on the requirements of the upper and lower top working platforms 120, construction equipment, tools or construction materials are usually not placed near the first staircase 140 on the top working platform 120 to facilitate the passage of workers. Therefore, the sliding bar 200 is close to the first staircase 140, which can also make workers habitually avoid the area near the sliding bar 200 when placing materials. In the event of a tunnel collapse, workers can move to the sliding bar 200 without hindrance and escape quickly. Placing the sliding bar 200 near the first staircase 140 is more in line with the work habits of the workers on the one hand, and on the other hand, it can also make the layout of the top working platform 120 more reasonable.

[0076] It should be noted that the above description only describes some embodiments of the present application. Other embodiments are within the scope of the appended claims.

[0077] The various embodiments in this application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0078] The description of this application is provided for purposes of illustration and description and is not intended to be exhaustive or to limit the application to the disclosed form. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the application and to enable those skilled in the art to understand the application and design various embodiments with various modifications suitable for specific applications.

[0079] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application is limited to these examples. In line with the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0080] While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0081] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A tunnel excavation trolley, characterized in that: include: The trolley frame includes a door-shaped body, the door-shaped body extends in a first direction, a top working platform is provided on the top of the door-shaped body, and side working platforms are respectively connected to both sides of the door-shaped body in a second direction; a first staircase is connected between the side working platform and the top working platform, and the side working platform is further connected to a second staircase extending to the bottom of the door-shaped body; a driving wheel for driving the door-shaped body to move in the first direction is connected to the bottom of the door-shaped body, and the second direction is perpendicular to the first direction; A sliding rod extends in a vertical direction, and the sliding rod includes a first end and a second end arranged opposite to each other, the first end is connected to the top working platform, the second end is spaced apart from the ground where the tunnel excavation trolley is located in the vertical direction, and the second end is provided with a buffer pad with an airbag structure; the buffer pad includes a contracted state folded at the second end, and an expanded state extending out of the second end in a horizontal direction; when the buffer pad is in the expanded state, the buffer pad is an elastic structure.

2. The tunnel excavation trolley according to claim 1, characterized in that: The bottom panel of the top working platform is connected to an air pump, the air outlet of the air pump is connected to the air inlet of the cushion through a hose, and the top working platform is provided with a switch for starting the air pump; the air pump is used to transport gas into the cushion to switch the cushion to the expanded state.

3. The tunnel excavation trolley according to claim 2, characterized in that: The switch is close to the connection position between the slide bar and the top working platform.

4. The tunnel excavation trolley according to claim 2, characterized in that: The switch is arranged on the top panel of the top working platform.

5. The tunnel excavation trolley according to claim 4, characterized in that: The top working platform is connected to a protective cover, which has a protective state and an open state; when the protective cover is in the protective state, the orthographic projection of the protective cover on the top surface of the top working platform covers the switch; when the protective cover is in the open state, the orthographic projection of the protective cover on the top surface of the top working platform does not overlap with the switch.

6. The tunnel excavation trolley according to claim 2, characterized in that: The interior of the slide rod is hollow, and the hose is passed through the interior of the slide rod.

7. The tunnel excavation trolley according to claim 1, characterized in that: The tunnel excavation trolley includes a rotating beam, which is horizontally arranged and hinged to the top working platform at one end and connected to the first end of the sliding rod at the other end; the sliding rod is connected to the top working platform through the rotating beam.

8. The tunnel excavation trolley according to claim 7, characterized in that: In the vertical direction, the rotating beam is located above the top working platform.

9. The tunnel excavation trolley according to claim 1, characterized in that: The top working platform is connected with a protection frame protruding from the top plate surface, and the protection frame is close to the connection position between the sliding rod and the top working platform.

10. The tunnel excavation trolley according to claim 1, characterized in that: Along the first direction, the sliding rod is close to the first stair.

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