Multifunctional two-in-one movable tunnel excavation rack

Abstract

The utility model relates to a multifunctional two-in-one movable tunnel excavation rack which comprises a door-type upper frame and a door-type lower frame, the door-type lower frame can be used as a frame body of a low-layer movable excavation rack, and the door-type upper frame and the door-type lower frame are assembled to form an integrated frame which can be used as a frame body for full-section excavation. Folding platforms are arranged on the two sides of the frame body, and telescopic platforms and telescopic fences are arranged on the folding platforms. The folding platform can adapt to different tunnel face widths, the construction platform is expanded and shrunk through the telescopic platform and the fence, the construction operation range is flexibly increased and decreased, and construction is facilitated. Full-section construction can be completed through the rack, when upper and lower steps are excavated, the upper-layer rack is dismantled, and the lower-layer rack is reserved to serve as a low-layer movable excavation rack to conduct upper and lower step construction. According to the construction method, the construction speed can be effectively increased, the construction quality of tunnel excavation is improved, and series of construction such as tunnel face drilling and charging can be completed.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction equipment, in particular to a multifunctional two-in-one mobile tunnel excavation stand. Background Art

[0002] During tunnel construction, gantry platforms are often used to facilitate drilling and charging operations on the tunnel face. However, existing gantry platforms cannot adapt to changes in the tunnel face and can only provide a limited working range, making it difficult to construct peripheral holes. Furthermore, when excavating upper and lower steps, the gantry platforms used for full-face construction cannot be used, requiring the establishment of a temporary construction platform. Utility Model Content

[0003] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to provide a multifunctional two-in-one mobile tunnel excavation stand.

[0004] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

[0005] A multifunctional two-in-one mobile tunnel excavation platform capable of drilling a full section at one time and charging a half section, comprising a portal upper frame and a portal lower frame connected by bolts to form an integral frame;

[0006] The four columns and vertical support columns of the portal upper frame are connected to the crossbeams and four corners of the portal lower frame by fastening with high-strength bolts and reinforcing steel plates;

[0007] The portal lower frame is supported by crossbeams and diagonal braces, and moving wheels are installed at the bottom of the columns of the portal lower frame;

[0008] Multiple layers of folding platforms, retractable platforms and retractable fences are provided on both sides of the overall frame. The folding platforms, retractable platforms and retractable fences on each layer serve as construction platforms, and a pedestrian passage is provided in the middle of the overall frame on each construction platform.

[0009] Furthermore, the columns and vertical support columns at the four corners of the portal upper frame are connected to the cross beams and four corners of the portal lower frame by fastening with high-strength bolts and reinforcing with steel plates.

[0010] Furthermore, the bottom of the column of the portal lower frame is threadedly connected to the sleeve, and the moving wheel is then installed through the sleeve in a threaded connection manner.

[0011] Furthermore, a detachable diagonal brace is provided between the folding platform and the column. One end of the detachable diagonal brace is installed with a high-strength bolt, and the end away from the column is set as a groove and installed on the detachable buckle under the folding platform. The detachable buckle is fixed to the folding platform by bolt connection.

[0012] Furthermore, a fixed fence is provided on the folding platform, and slide rails are installed in both the folding platform and the fixed fence. The retractable platform is arranged inside the folding platform and cooperates with the slide rails inside the folding platform. A pulley is provided at the bottom of the retractable fence and cooperates with the slide rails inside the folding platform.

[0013] Furthermore, the portal upper frame and the portal lower frame use a clamp method to overlap several equally spaced steel pipes arranged vertically and horizontally. A dense mesh is set on the steel pipes to form a pedestrian passage. Passage fences are added, and temporary passage openings and stairs are also set to facilitate construction workers to walk up and down on each working surface.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0015] 1. The utility model provides a folding platform. The folding platform is retracted during the movement of the platform, which is convenient for movement. The folding platform is unfolded during construction, thereby improving the convenience of the platform in tunnel construction.

[0016] 2. The utility model increases the construction range by setting a retractable platform and a retractable fence, solves the problem of inconvenience in construction of peripheral holes, and adapts to tunnel faces of different widths, thereby improving the utilization rate of the platform.

[0017] 3. The utility model adds a pedestrian passage in the platform to facilitate the construction workers to move horizontally and vertically. At the same time, a passage fence is added to ensure the safety of walking construction.

[0018] 4. The utility model is provided with a double-layer frame, which is installed and removed by bolt connection. It can be used for full-section construction as well as half-section construction, solving the problem of additional temporary construction platforms for excavating upper and lower steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an elevation view of the mobile excavation rig;

[0020] Figure 2 It is an enlarged view of A;

[0021] Figure 3 It is an enlarged view of B;

[0022] Figure 4 It is a diagram of the telescopic structure of the construction platform;

[0023] Figure 5 This is a schematic diagram of the upper section excavation.

[0024] In the figure, 1. Portal upper frame; 2. Portal lower frame; 3. Vertical support column; 4. Folding platform; 5. Fixed fence; 6. Retractable platform; 7. Retractable fence; 8. Removable diagonal brace; 9. Slide rail; 10. Rotating shaft; 11. Diagonal brace; 12. High-strength bolt; 13. Reinforcement steel plate; 14. Sleeve; 15. Moving wheel; 16. Passage fence; 17. Pedestrian walkway; 18. Crossbeam; 19. Stairs; 20. Removable buckle; 21. Bolt; 22. Low-level mobile excavation platform; 23. Column; 24. Pulley. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0026] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0027] Example 1

[0028] like Figure 1-5 As shown, the multifunctional two-in-one mobile tunnel excavation rig, capable of both full-section single-pass drilling and partial-section charging, comprises a portal upper frame 1 and a portal lower frame 2. The portal lower frame 2 serves as the framework for the low-level mobile excavation rig 22 and is also used for partial-section charging. The portal upper frame 1 and the portal lower frame 2 are bolted together to form a single unit, enabling full-section single-pass drilling.

[0029] Specifically, the columns 23 and the vertical support columns 3 at the four corners of the portal upper frame 1 are connected to the cross beams 18 and the four corners of the portal lower frame 2 by fastening with high-strength bolts 12 and reinforcing with reinforcing steel plates 13 .

[0030] Among them, since the portal lower frame 2 is relatively high, it is supported by beams 18 and diagonal braces 11. The bottom of the column 23 of the portal lower frame 2 is threadedly connected to the sleeve 14, and then the moving wheel 15 is installed through the sleeve 14 in a threaded connection manner, which is convenient for installation and removal.

[0031] Example 2

[0032] This embodiment is further optimized based on the structure of embodiment 1, including providing a folding platform 4 to facilitate the movement of the platform and widen the scope of construction operations; and providing a safe pedestrian passage 17 to facilitate construction workers walking up and down the work surface.

[0033] A number of rotating shafts 10 are vertically and equidistantly arranged on the columns 23 at the four corners of the portal upper frame 1 and the portal lower frame 2, and the folding platform 4 is connected to the rotating shafts 10 in a hinged manner. After the platform is moved to the designated position, the folding platform 4 is flipped into a plane and then fixed with a detachable diagonal brace 8 to facilitate movement and installation.

[0034] Specifically, one end of the detachable diagonal brace 8 is installed with a high-strength bolt 12, and the end away from the column 23 is installed on the detachable buckle 20 under the folding platform 4. The detachable buckle 20 is fixed to the folding platform 4 by means of a bolt 21.

[0035] The end of the detachable diagonal support 8 is configured as a groove to fit the detachable buckle 20 .

[0036] Specifically, a slide rail 9 is installed in the folding platform 4, and the retractable platform 6 is arranged inside the folding platform 4, so that the working surface of the construction workers is increased by extending the platform.

[0037] Furthermore, a retractable fence 7 is installed on the folding platform 4, a slide rail 9 is set on the fixed fence 5, and a pulley 24 is set at the bottom of the retractable fence 7 to facilitate extension and support.

[0038] A number of equally spaced steel pipes arranged vertically and horizontally are overlapped on the portal upper frame 1 and the portal lower frame 2 by means of clamps. A dense mesh is set on the steel pipes to form a pedestrian passage 17, a passage fence 16 is added, and a temporary passage opening and stairs 19 are set to facilitate construction workers to walk up and down on each working surface.

[0039] The parts not described in detail in this utility model are prior art, so this utility model does not describe them in detail.

[0040] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0041] Although this article uses a lot of professional terms, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

[0042] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the scope of protection of the present invention.

Claims

1. The multifunctional two-in-one mobile tunnel excavation platform can perform full-section drilling and half-section charging. It is characterized by: It comprises a portal upper frame (1) and a portal lower frame (2) which are connected by bolts to form an integral frame; The four upright columns (23) and vertical support columns (3) of the portal upper frame (1) are connected to the cross beams and four corners of the portal lower frame (2) by fastening with high-strength bolts (12) and reinforcing with reinforcing steel plates (13); The portal lower frame (2) is supported by a crossbeam (18) and a diagonal brace (11), and a moving wheel (15) is installed at the bottom of the column (23) of the portal lower frame (2); Multiple layers of folding platforms (4), retractable platforms (6) and retractable fences (7) are provided on both sides of the overall frame. The folding platforms (4), retractable platforms (6) and retractable fences (7) of each layer serve as construction platforms. A pedestrian passage (17) is provided in the middle of the overall frame on each construction platform.

2. The multifunctional two-in-one mobile tunnel excavation stand according to claim 1 is characterized in that: The bottom of the upright column (23) of the door-type lower frame (2) is threadedly connected to the sleeve (14), and the moving wheel (15) is then installed through the sleeve (14) in a threaded connection manner.

3. The multifunctional two-in-one mobile tunnel excavation stand according to claim 1 is characterized in that: A detachable diagonal brace (8) is provided between the folding platform (4) and the column (23). One end of the detachable diagonal brace (8) is installed with a high-strength bolt (12), and the end away from the column (23) is provided with a groove and installed on a detachable buckle (20) under the folding platform (4). The detachable buckle (20) is fixed to the folding platform (4) by means of a bolt (21).

4. The multifunctional two-in-one mobile tunnel excavation stand according to claim 1 is characterized in that: The folding platform (4) is provided with a fixed fence (5), and slide rails (9) are installed in both the folding platform (4) and the fixed fence (5). The retractable platform (6) is arranged inside the folding platform (4) and cooperates with the slide rails (9) in the folding platform (4). A pulley (24) is provided at the bottom of the retractable fence (7) and cooperates with the slide rails (9) in the folding platform (4).

5. The multifunctional two-in-one mobile tunnel excavation stand according to any one of claims 1 to 4, characterized in that: The portal upper frame (1) and the portal lower frame (2) are connected by a plurality of steel pipes arranged vertically and horizontally at equal intervals in a hoop manner, a dense mesh is provided on the steel pipes to form a pedestrian passage (17), a passage fence (16) is additionally provided, and a temporary passage opening and stairs (19) are also provided to facilitate construction workers to walk up and down on each working surface.

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