Multi-section tunnel conversion device

Abstract

To provide a multi-section tunnel conversion device that can easily attach and detach templates, reduces the complicated process of traditional bolt fixing installation, simplifies the attachment and detachment steps, makes it easy to replace different cross-section templates, and meets the demands for expanding the tunnel width, changing the cross-section, etc. [Solution] The multi-section tunnel conversion device comprises three sets of templates, connecting beams fixedly connected to the inner walls of the templates, multiple sets of support modules fixedly connected to one side of the connecting beams, mounting rails 4 fixedly connected to one end of the support modules, multiple sets of position limiting modules 5 connected inside the mounting rails, a slide beam 6 slidingly connected inside the mounting rails, the support modules including support springs fixedly connected to one side of the connecting beams, positioning sleeves fitted inside the support springs, and telescopic rods slidingly connected inside the positioning sleeves.

Description

[Technical Field]

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a multi-section tunnel conversion device. [Background technology]

[0002] The multi-section tunnel conversion device is an important piece of equipment in tunnel construction, providing structural support and conversion functions between tunnels of different cross-sectional shapes or dimensions, thereby enhancing the flexibility and safety of construction. This technology is particularly applicable to complex projects such as urban transportation, underground pipelines and drainage systems, and can adapt to changing geological conditions and space demands. The device can dynamically adjust the cross-sectional shape and dimensions of the tunnel during construction, support multi-construction method conversion, and solve the structural collision problem caused by traditional single-section tunnel construction.

[0003] Patent document CN209908521U proposes a construction device for variable cross-section tunnels, including a template system and multiple combined top modules and side modules. The upper support system includes upper support beams, lower support beams, small support columns, middle support columns, longitudinal beams, lifting cylinders and rotating cylinders, and a door frame system including a main door frame, sub-door frame, shift cylinder, and adjustable support wire rod. The construction method for the construction device for variable cross-section tunnels involves gradually removing and reassembling parts of the template system, upper support system, and door frame system. This device can change the profile of the two-carriage formwork when the cross-section changes, thereby adapting to various tunnel cross-sections and ultimately meeting the construction requirements of two multi-cross-section tunnels, shortening construction time.

[0004] However, when using conventional multi-section tunnel conversion devices, it is difficult to easily dismantle the templates, which increases the number of fixed installation steps, complicates the dismantling procedure, and makes it inconvenient to replace different cross-section templates, reducing construction efficiency. Summary of the Invention [Problem to be solved by the invention]

[0005] The object of the present invention is to provide a multi-section tunnel conversion device that solves the problems of the conventional multi-section tunnel conversion device proposed in the background art mentioned above, such as the difficulty of easily attaching and detaching templates, which increases the number of steps required for fixed installation, the complicated attachment and detachment procedures, the inconvenience of replacing different cross-section templates, and the reduced construction efficiency. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention is realized by the following technical solution: a multi-section tunnel conversion device, comprising three sets of templates, connecting beams fixedly connected to the inner walls of the templates, a plurality of sets of support modules fixedly connected to one side of the connecting beams, mounting rails fixedly connected to one ends of the support modules, a plurality of sets of position limiting modules connected to the inside of the mounting rails, and a sliding beam slidably connected to the inside of the mounting rails; The support module includes a support spring fixedly connected to one side of the connecting beam, a positioning sleeve fitted inside the support spring, and an extensible rod slidably connected inside the positioning sleeve; The position limiting module includes a pivoting lever pivotally connected to the inside of a mounting rail, a position limiting bolt fitted to the surface of the pivoting lever, and a position limiting nut screwed to one end of the position limiting bolt.

[0007] As a further technical means of the present invention, a plurality of sets of rotary valves are fixedly connected to one side of the slide beam, and a connecting seat is rotatably connected to the surface of the rotary valves.

[0008] As a further technical means of the present invention, a hydraulic rod is fixedly connected to one end of the connecting seat, and a movable stopper is rotatably connected to one end of the hydraulic rod.

[0009] As a further technical means of the present invention, a support pole is fixedly connected to one side of the movable plug, and a support seat is fixedly connected to the bottom of the support pole.

[0010] As a further technical means of the present invention, a bottom beam is screwed to the bottom of the support seat, and a slide rail is engaged with the bottom of the bottom beam.

[0011] As a further technical means of the present invention, a diagonal rod is fixedly connected to one side of the support column, and a top plate is fixedly connected to the top of the support column.

[0012] As a further technical means of the present invention, one side of the mounting rail is provided with a number of grooves to fit the position limiting bolts, and one side of the slide beam is provided with a number of locking grooves to fit the position limiting bolts.

[0013] As a further technical means of the present invention, a slide groove is provided inside the mounting rail to fit the slide beam, and a buffer layer is provided on the surface of the template.

[0014] As another technical means of the present invention, the surfaces of the support seat and the bottom beam are both provided with threaded holes, through which bolts are inserted.

[0015] As a further technical means of the present invention, a position limiting hole is provided on one side of each of the bottom beam and the slide rail, and a position limiting plug is inserted into the position limiting hole. [Effects of the Invention]

[0016] The present invention provides a multi-section tunnel conversion device, which has the following beneficial effects: 1. With the installation of the stopper module, when the template needs to be replaced, this multi-section tunnel conversion device simply rotates the stopper nut to remove it from one end of the limiting bolt, then pulls the limiting bolt, rotates the limiting bolt inside the mounting rail, and removes it from the mounting rail groove. At the same time, the stopper on the sliding beam is released, and the template is pulled, allowing the mounting rail to separate from the surface of the sliding beam. This achieves the effect of easily removing the template, reduces the complicated process of traditional bolt-fixing installation, simplifies the installation steps, and facilitates the replacement of different cross-section templates, meeting the needs of tunnel width expansion, cross-section change, etc. 2. This multi-section tunnel transformation device is installed with a support module. When in use, the hydraulic rod is activated and supported at the transformation position inside the tunnel. The tunnel then presses the template, and the connecting beam presses the support spring. At the same time, the telescopic rod slides inside the fixed sleeve to maintain stability while the support spring generates elasticity through force deformation and presses the template in the opposite direction, thereby reducing the instantaneous impact force directly received by the template and protecting the integrity of the template structure. The elastic force of the support spring can also be dynamically adjusted according to the cross-sectional shape of the tunnel, allowing the template to be tightly fitted to tunnel walls with different curvatures. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is an overall configuration diagram of the present invention. [Figure 2] 1 is a disassembled diagram of the present invention. [Figure 3] 1 is a block diagram of a position limiting module according to the present invention. [Figure 4] 1 is a structural diagram of the support module of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following clearly and completely describes the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments that a person skilled in the art can obtain without any creative work fall within the scope of the present utility model protection.

[0019] Referring to Figures 1 to 4, this Hongan provides a technical means, which is a multi-section tunnel conversion device, which includes three sets of templates 1, connecting beams 2 fixedly connected to the inner walls of the templates 1, and multiple sets of support modules 3 fixedly connected to one side of the connecting beams 2. The installation of the support modules 3 reduces the instantaneous impact force directly received by the template 1 and protects the structural integrity of the template 1. At the same time, the elastic force of the support modules 301 can be dynamically adjusted according to the cross-sectional shape of the tunnel, thereby realizing close adhesion between the template 1 and tunnel walls with different curvatures. A mounting rail 4 is fixedly connected to one end of the support module 3, and multiple sets of position-limiting modules 5 are connected inside the mounting rail 4. The installation of the position-limiting modules 5 achieves easy installation and removal of the template 1, reducing the complex process of traditional bolt-fixing installation, simplifying the installation and removal steps, and facilitating replacement of different cross-section templates 1, thereby meeting the needs of widening the tunnel width and changing the cross-section. A sliding beam 6 is slidably connected inside the mounting rail 4, and multiple sets of rotary valves 7 are fixedly connected to one side of the sliding beam 6, with a connecting seat 8 rotatably connected to the surface of the rotary valves 7. The connecting seat 8 facilitates the rotation of the hydraulic rod 9. One end of the connecting seat 8 is fixedly connected to the hydraulic rod 9, and one end of the hydraulic rod 9 is rotatably connected to a movable valve 10. The movable valve 10 serves as a connecting and supporting element for the hydraulic rod 9. The support module 3 includes a support spring 301 fixedly connected to one side of the connecting beam 2, a positioning sleeve 302 fitted inside the support spring 301, and an extendable rod 303 slidably connected inside the positioning sleeve 302, and the position limiting module 5 includes a pivoting lever 501 pivotally connected inside the mounting rail 4, a position limiting bolt 502 fitted on the surface of the pivoting lever 501, and a position limiting nut 503 screwed onto one end of the position limiting bolt 502.

[0020] A support column 11 is fixedly connected to one side of the movable plug 10, and a support seat 12 is fixedly connected to the bottom of the support column 11. The support seat 12 increases the support area of ​​the support column 11 and serves to enhance stability.

[0021] A bottom beam 13 is screwed to the bottom of the support seat 12, and a slide rail 14 is engaged with the bottom of the bottom beam 13. The installation of the slide rail 14 serves to facilitate the movement of the bottom beam 13 when propelled on the slide rail 14.

[0022] A diagonal rod 15 is fixedly connected to one side of the support column 11, and a top plate 16 is fixedly connected to the top of the support column 11. The top plate 16 serves to support the top template 1.

[0023] One side of the mounting rail 4 is provided with a plurality of grooves that fit into the position limiting bolts 502, and one side of the slide beam 6 is provided with a plurality of locking grooves that fit into the position limiting bolts 502. The provision of the locking grooves serves to facilitate the engagement of the position limiting bolts 502 into the position limiters.

[0024] The mounting rail 4 has a slide groove that fits the slide beam 6, and a buffer layer is provided on the surface of the template 1. The buffer layer serves to increase the surface protection of the template 1.

[0025] The support seat 12 and the bottom beam 13 are both provided with threaded holes on their surfaces, and bolts are inserted into the threaded holes to connect the support seat 12 and the bottom beam 13 together.

[0026] A position limiting hole is provided on one side of each of the bottom beam 13 and the slide rail 14, and a position limiting plug is inserted into the position limiting hole. The position limiting plug serves to fix the positions of the bottom beam 13 and the slide rail 14.

[0027] In this invention, the operation procedure of this device is as follows: First step: When in use, activate the hydraulic rod 9, which pushes the template 1 to support it in the transformation position inside the tunnel, and then the tunnel pushes the template 1, and the connecting beam 2 pushes the support spring 301, and at the same time, the telescopic rod 303 slides inside the positioning sleeve 302, and the support spring 301 is subjected to spring force due to the force deformation, and pushes the template 1 in the opposite direction; Second step: If the template 1 needs to be replaced, the stopper nut 503 is removed from one end of the position limiting bolt 502, and the position limiting bolt 502 is further pulled, causing the position limiting bolt 502 to rotate inside the mounting rail 4 and remove it from the groove of the mounting rail 4, while at the same time releasing the stopper of the slide beam 6, and the template 1 is further pulled so as to remove the mounting rail 4 from the surface of the slide beam 6.

[0028] It is important to note that the equipment structure and drawings of this invention mainly explain the principle of this invention. Due to the technical nature of this design principle, the installation of the power mechanism, power supply system and control system of the device is not fully explained. However, those skilled in the art can clearly understand the specifics of the power mechanism, power supply system and control system on the premise of understanding the principle of the above-mentioned utility model. The control method in the application documents is automatic control through a controller, and the control circuit of the controller can be easily realized by those skilled in the art through programming. All of the standard parts used therein can be purchased from the market or ordered based on the descriptions and drawings; the specific connection methods of each part are conventional means such as bolts, rivets, and welding that are mature in the prior art; the machines, parts, and equipment are conventional models in the prior art; and the structures and principles of the parts known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. [Explanation of symbols]

[0030] 1. Template; 2. Connecting beam; 3. Support module; 301. Support spring; 302. Positioning sleeve; 303. Telescopic rod; 4. Mounting rail; 5. Position limiting module; 501. Rotating lever; 502. Position limiting bolt; 503. Position limiting nut; 6. Slide beam; 7. Rotating valve; 8. Connecting seat; 9. Hydraulic rod; 10. Movable valve; 11. Support column; 12. Support seat; 13. Bottom beam; 14. Slide rail; 15. Diagonal rod; 16. Top plate.

Claims

1. A multi-section tunneling transformation device comprising three sets of templates (1), A connecting beam (2) is fixedly connected to the inner wall of the template (1), a plurality of sets of support modules (3) are fixedly connected to one side of the connecting beam (2), a mounting rail (4) is fixedly connected to one end of the support module (3), a plurality of sets of position limiting modules (5) are connected inside the mounting rail (4), and a slide beam (6) is slidably connected inside the mounting rail (4); The support module (3) includes a support spring (301) fixedly connected to one side of the connecting beam (2), a positioning sleeve (302) fitted inside the support spring (301), and a telescopic rod (303) slidably connected inside the positioning sleeve (302); The position limiting module (5) includes a pivoting lever (501) pivotally connected to the inside of the mounting rail (4), a position limiting bolt (502) is fitted to the surface of the pivoting lever (501), and a position limiting nut (503) is screwed to one end of the position limiting bolt (502).

2. The multi-section tunnel conversion device according to claim 1, characterized in that a plurality of sets of rotary valves (7) are fixedly connected to one side of the slide beam (6), and a connecting seat (8) is rotatably connected to the surface of the rotary valve (7).

3. A multi-section tunnel conversion device as described in claim 2, characterized in that a hydraulic rod (9) is fixedly connected to one end of the connecting seat (8), and a movable plug (10) is rotatably connected to one end of the hydraulic rod (9).

4. The multi-section tunnel conversion device according to claim 3, characterized in that a support pillar (11) is fixedly connected to one side of the movable plug (10), and a support seat (12) is fixedly connected to the bottom of the support pillar (11).

5. A multi-section tunnel conversion device as described in claim 4, characterized in that a bottom beam (13) is screwed to the bottom of the support seat (12), and a slide rail (14) is engaged with the bottom of the bottom beam (13).

6. A multi-section tunnel conversion device as described in claim 4, characterized in that a diagonal rod (15) is fixedly connected to one side of the support pillar (11), and a top plate (16) is fixedly connected to the top of the support pillar (11).

7. 2. The multi-section tunnel conversion device according to claim 1, wherein one side of the mounting rail (4) has a plurality of grooves that fit with position limiting bolts (502), and one side of the slide beam (6) has a plurality of locking grooves that fit with position limiting bolts (502).

8. 2. The multi-section tunnel conversion device according to claim 1, wherein the mounting rail (4) has a slide groove therein that fits the slide beam (6), and the template (1) has a buffer layer on its surface.

9. The multi-section tunnel conversion device according to claim 4, characterized in that threaded holes are opened on the surfaces of both the support seat (12) and the bottom beam (13), and bolts are passed through the inside of the threaded holes.

10. A multi-section tunnel conversion device as described in claim 5, characterized in that a position limiting hole is opened on one side of each of the bottom beam (13) and slide rail (14), and a position limiting plug is inserted into the position limiting hole.

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