Movable reaction frame for large-diameter shield launching

Abstract

The utility model discloses a movable counter-force frame for large-diameter shield launching, which is characterized in that a vertical door frame is arranged, two top frames, two bottom frames and a bottom connecting frame are utilized to form the vertical door frame, so that the whole structure is convenient to assemble and carry, then a shield ring is sleeved by arranging a front support, and two first support frames and a plurality of second support frames are arranged, so that the movable counter-force frame is convenient to assemble and carry. The first supporting frame or the second supporting frame can abut against and abut against the side wall of the foundation pit to support the vertical portal frame, so that when the vertical portal frame advances, the second supporting frame is continuously added to effectively support the vertical portal frame when the vertical portal frame advances until the vertical portal frame is attached to a tunnel entrance, and a shield ring is matched to effectively support the vertical portal frame when the vertical portal frame advances. A trolley can enter a tunnel after passing through the two first supporting frames, the multiple second supporting frames and the shield ring, the overall structure is practical, reliable and stable, the situation that due to the fact that the trolley collides with the first supporting frames and the second supporting frames, connection of the first supporting frames and the second supporting frames is loosened, and safety accidents are caused is avoided, and the overall safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to civil engineering technical field especially is involved in a kind of movable counterforce frame for large-diameter shield launching. BACKGROUND

[0002] Tunnel is buried in the engineering building of stratum, is a form of human utilization of underground space;Tunnel is usually excavated by shield machine, but in the construction site of tunnel advancing, counterforce frame, shield ring need to be set in tunnel entrance, for trolley to enter, wherein trolley is loaded with various construction materials, construction equipment etc., but due to the influence of terrain in construction site foundation pit, the depth of left and right sidewalls of foundation pit at tunnel entrance is inconsistent, so it will cause the distance between the frames of installed support counterforce frame to change, thereby causing trolley to collide with support frame or collide with foundation pit sidewall when passing through two rows of support frames, thereby causing major accident to occur. The counterforce frame is disclosed in the publication number CN117967326A. The counterforce frame includes a counterforce support frame body, a connecting cross beam fixedly connected to the side surface of the counterforce support frame body, a support column fixedly connected to the front surface of the connecting cross beam, an installation placement plate fixedly connected to the end of the support column away from the connecting cross beam, and a counterforce installation box fixedly connected to the upper surface of the installation placement plate. The inner top wall of the counterforce installation box is fixedly connected to a spring. The counterforce frame does not have support frame function, and when the terrain of foundation pit at tunnel entrance changes, the counterforce frame and trolley are easy to collide with foundation pit, causing accident to occur. SUMMARY

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a practical and reliable movable counterforce frame for large-diameter shield launching.

[0004] To achieve the above-mentioned purpose, the utility model provides the following scheme: a movable counterforce frame for large-diameter shield launching, including vertical door frame, two first support frames, and multiple second support frames. The vertical door frame includes two top frames, two bottom frames, and a bottom connecting frame. The two top frames are symmetrically arranged left and right, and the two bottom frames are symmetrically arranged left and right. One top frame is detachably connected to one bottom frame downward, and the bottom connecting frame is connected between the two bottom frames.

[0005] Among them, the front surface of the two top frames and the front surface of the two bottom frames are jointly connected with a front support, the front support is used for sleeving and connecting the shield ring, the back surface of the top frame and the back surface of the bottom frame are jointly detachably installed with a first support frame, multiple second support frames are connected in sequence front and back, and the first support frame is detachably connected to the second support frame located at the most front side.

[0006] The utility model discloses an advantageous effect is: whole structure practical and reliable, the device sets up the vertical door frame through setting, utilizes two top frames, two bottom frames, bottom connecting frame to form the vertical door frame, makes whole structure convenient to assemble and carries, then through setting up the front support, realizes the suit shield ring, passes through the first support frame or the second support frame again and supports the vertical door frame by the first support frame or the second support frame and touches the top pressure foundation pit side wall, so when the vertical door frame advances, through the second support frame of continuously increasing, effectively supports the vertical door frame when the vertical door frame advances, until the vertical door frame is pasted tunnel entrance, cooperates shield ring, can supply the trolley after two first support frames, multiple second support frames, shield ring, enter the tunnel, whole structure practical and reliable stable, prevent because trolley and collide first support frame, second support frame, lead to first support frame, second support frame connection loose, lead to the emergence of safety accident, improve overall safety.

[0007] Further, the bottom of the bottom frame is formed with a first connecting plate, the two ends of the bottom connecting frame are respectively formed with a second connecting plate, and the first connecting plate and the second connecting plate are fixed by screw butt joint. The utility model adopts the above structure, realizes the connection and fixation between the bottom frame and the bottom connecting frame.

[0008] Further, the inner sides of the two top frames and the inner sides of the two bottom frames jointly form a guide hole, and the guide hole is communicated with the front support.

[0009] Further, the bottom of the bottom frame is provided with a first sliding seat, the first support frame and the second support frame are connected with a mounting frame, the bottom frame and the mounting frame are connected with a sliding rod, and the sliding rod is slidably connected with a second sliding seat.

[0010] Further, the front of the bottom frame is provided with a mounting seat.

[0011] Further, the bottom of the first sliding seat is provided with a plurality of first rollers, and the bottom of the second sliding seat is provided with a plurality of second rollers. The utility model adopts the above structure, so that the vertical door frame can be moved.

[0012] Further, the side wall of the top frame is bent to form a fixing frame, and the fixing frame is provided with a third roller. The utility model adopts the above structure, and the third roller slides in the groove of the foundation pit side wall, so as to guide the forward movement of the vertical door frame.

[0013] Further, the two top frames are connected with a pull beam. The utility model adopts the above structure, which improves the stability of the overall connection.

[0014] Further, the front support comprises a plurality of top support blocks which jointly form an annular structure, and the plurality of top support blocks are connected in annular sequence, wherein two top support blocks are detachably connected with a top frame, one top support block is detachably connected with a bottom frame, and two top support blocks are detachably connected with a bottom connecting frame.

[0015] Further, the top support block rear end is formed with a third connecting plate for detachable connection with the top frame or the bottom frame or the bottom connecting frame.

[0016] Further, the top support block front end is formed with a second limiting block, the inner side wall of the second limiting block is flush with the inner side wall of the top support block, and a plurality of the second limiting blocks jointly form an annular structure.

[0017] Further, the shield ring inner side wall is formed with a first limiting block, the first limiting block is in an annular structure, and the first limiting block and a plurality of second limiting blocks are forward and backward clamped to limit the shield ring to move on the front support.

[0018] Further, the top support block inner side wall is formed with a first sliding guide rail extending in the direction of the top support block, the bottom connecting frame is formed with a second sliding guide rail extending in the direction of the top support block, and the first sliding guide rail and the second sliding guide rail are forward and backward aligned. After the above structure is adopted, the first sliding guide rail and the second sliding guide rail can be used for trolley sliding.

[0019] Further, the first support frame comprises a plurality of first support columns and a plurality of first connecting rods, the first support columns are arranged in sequence and spaced apart from top to bottom, the front end of the first support column is connected with the top frame or the bottom frame, the rear end of the first support column is connected with the second support frame, and the first connecting rods are connected between every two adjacent upper and lower first support columns.

[0020] Further, the second support frame comprises a plurality of second support columns and a plurality of second connecting rods, the second support columns are arranged in sequence and spaced apart from top to bottom, the second support columns are connected to realize the connection of every two second support frames, and the second connecting rods are connected between every two adjacent upper and lower second support columns. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure of the utility model Figure 1 (The shield ring is shown).

[0022] Figure 2 It is Figure 2 The enlarged view of A in the middle.

[0023] Figure 3 It is the overall structure of the utility model Figure 2 (The shield ring is shown).

[0024] Figure 4 It is the overall structure of the utility model Figure 3 (The shield ring is not shown).

[0025] Figure 5 As Figure 4 Enlarged view at B.

[0026] Figure 6 As a whole structure of the utility model Figure 3 (The shield ring is not shown).

[0027] Figure 7 As a whole structure of the utility model Figure 4 (The shield ring is not shown).

[0028] Figure 8 As Figure 7 Enlarged view at C.

[0029] Wherein, 1 is shield ring, 11 is first limit block, 21 is top frame, 211 is fixed frame, 212 is third roller, 22 is bottom frame, 221 is first sliding seat, 222 is first roller, 223 is mounting seat, 224 is first connecting plate, 23 is bottom connecting frame, 231 is second connecting plate, 232 is second sliding guide rail, 24 is guide hole, 25 is pull beam, 3 is first support frame, 31 is first support column, 32 is first connecting rod, 33 is mounting frame, 34 is sliding rod, 35 is second sliding seat, 351 is second roller, 4 is second support frame, 41 is second support column, 42 is second connecting rod, 51 is jacking block, 52 is third connecting plate, 53 is second limit block, 54 is first sliding guide rail. DETAILED DESCRIPTION

[0030] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] Referring to the drawings Figure 1 to the drawings Figure 8As shown, a mobile counterforce frame for large-diameter shield launching comprises a vertical gantry, two first support frames 3, and a plurality of second support frames 4. The vertical gantry comprises two top frames 21, two bottom frames 22, and a bottom connecting frame 23. The two top frames 21 are symmetrically arranged left and right, and the two bottom frames 22 are symmetrically arranged left and right. One top frame 21 is detachably connected to one bottom frame 22 downward, and the bottom connecting frame 23 is connected between the two bottom frames 22.

[0033] The front of the two top frames 21 and the front of the two bottom frames 22 are jointly connected with a front support, which is used for sleeving and connecting the shield ring 1. The back of the top frame 21 and the back of the bottom frame 22 are jointly detachably installed with a first support frame 3. The plurality of second support frames 4 are sequentially connected front and back. The first support frame 3 is detachably connected to the second support frame 4 located at the most front side.

[0034] In this embodiment, the bottom of the bottom frame 22 is provided with a first sliding seat 221. The first support frame 3 and the second support frame 4 are connected with a mounting frame 33. The bottom frame 22 and the mounting frame 33 are connected with a sliding rod 34. The sliding rod 34 is slidably connected with a second sliding seat 35. The bottom of the first sliding seat 221 is provided with a plurality of first rollers 222. The bottom of the second sliding seat 35 is provided with a plurality of second rollers 351.

[0035] In this embodiment, the side wall of the top frame 21 is bent and formed with a fixing frame 211. The fixing frame 211 is provided with a third roller 212. The bottom of the bottom frame 22 is formed with a first connecting plate 224. The two ends of the bottom connecting frame 23 are respectively formed with a second connecting plate 231. The first connecting plate 224 and the second connecting plate 231 are fixed by screw butt joint.

[0036] In this embodiment, the inner sides of the two top frames 21 and the inner sides of the two bottom frames 22 jointly constitute a guide hole 24. The guide hole 24 communicates with the front support.

[0037] In this embodiment, the two top frames 21 are connected with a pull beam 25.

[0038] In this embodiment, the front support comprises a plurality of top support blocks 51 jointly constituting an annular structure. The plurality of top support blocks 51 are annularly connected in sequence. The two top support blocks 51 are detachably connected to one top frame 21. One top support block 51 is detachably connected to one bottom frame 22. The two top support blocks 51 are detachably connected to the bottom connecting frame 23. The rear end of the top support block 51 is formed with a third connecting plate 52. The third connecting plate 52 is used for detachably connecting the top frame 21 or the bottom frame 22 or the bottom connecting frame 23.

[0039] In this embodiment, the front end of the top support block 51 is formed with a second limiting block 53. The inner side wall of the second limiting block 53 is flush with the inner side wall of the top support block 51. The plurality of second limiting blocks 53 jointly constitute an annular structure.

[0040] In the embodiment, the inner side wall of the shield ring 1 is formed with a first limiting block 11, the first limiting block 11 is in a ring structure, and the first limiting block 11 is limited on the front support by the front and rear clamping of the plurality of second limiting blocks 53.

[0041] In the embodiment, the inner side wall of the top support block 51 is formed with a first sliding guide rail 54, the first sliding guide rail 54 extends along the direction of the top support block 51, the bottom connecting frame 23 is formed with a second sliding guide rail 232, the second sliding guide rail 232 extends along the direction of the top support block 51, and the first sliding guide rail 54 and the second sliding guide rail 232 are aligned front and back.

[0042] In the embodiment, the first support frame 3 includes a plurality of first support columns 31 and a plurality of first connecting rods 32, the plurality of first support columns 31 are arranged in sequence and spaced from each other from top to bottom, the front end of the first support column 31 is connected to the top frame 21 or the bottom frame 22, the rear end of the first support column 31 is connected to the second support frame 4, and the plurality of first connecting rods 32 are connected between every two adjacent first support columns 31 from top to bottom; the second support frame 4 includes a plurality of second support columns 41 and a plurality of second connecting rods 42, the plurality of second support columns 41 are arranged in sequence and spaced from each other from top to bottom, every two adjacent second support columns 41 are connected to realize the connection of every two second support frames 4, and at least one second connecting rod 42 is connected between every two adjacent second support columns 41.

[0043] In the embodiment, the first roller 222 of the first sliding seat 221 and the second roller 351 of the second sliding seat 35 are arranged, so that the vertical door frame of the embodiment can be moved as a whole.

[0044] In the embodiment, the two first support frames 3 and the plurality of second support frames 4 can assist the vertical door frame to enter the entrance of the tunnel, and the specific process is as follows:

[0045] S1. The two first support frames 3 are respectively installed on the left and right sides of the back of the vertical door frame 4, that is, the first support frame 3 is respectively detachably connected to the top frame 21 and the bottom frame 22 by screws, and the end portions of the two first support frames 3 abut against and press the side walls of the foundation pit, so that the third rollers 212 of the two fixed frames 211 slide in the grooves of the side walls of the foundation pit to guide the movement of the vertical door frame. At this time, the two first support frames 3 abut against and press the side walls of the foundation pit to support the vertical door frame.

[0046] Synchronously, the plurality of top support blocks 51 are combined into a front support, the plurality of third connecting plates 52 at the rear end of the front support are respectively attached to and contact the top frame 21, the bottom frame 22 and the bottom connecting frame 23, then the front support is installed on the front surface of the top frame 21, the bottom frame 22 and the bottom connecting frame 23 by screws, the shield ring 1 is sleeved on the front support, and the first limiting block 11 clamps the second limiting block 53 to realize the installation of the shield ring 1.

[0047] S2. At this time, the relevant equipment can be started to push the vertical door frame forward, so that the first support frame 3 leaves the side wall of the foundation pit until it advances to the set stroke, according to the distance between the end of the first support frame 3 and the side wall of the foundation pit, a plurality of second support frames 4 are installed, the plurality of second support frames 4 are connected in sequence, and the frontmost second support frame 4 is connected to the first support frame 3, so that the last second support frame 4 abuts against the side wall of the foundation pit, so that the first support frame 3 and the plurality of second support frames 4 support the vertical door frame during the advancement of the vertical door frame.

[0048] S3. Repeat step S2 until the vertical door frame is pushed forward and attached to the entrance of the tunnel, and the shield ring 1 is pushed into the tunnel, at this time the trolley can slide between the two first support frames 3 and the two rows of second support frames 4, and enter the tunnel through the guide hole 24 of the vertical door frame and the shield ring 1 for work, wherein the trolley slides on the second sliding guide rail 232 and the first sliding guide rail 54 in sequence when the trolley passes through the vertical door frame and the front support.

[0049] Through the above steps, when the trolley enters the tunnel from the foundation pit, it will not collide with the first support frame 3 and the second support frame 4 on both sides due to the influence of the terrain, thereby causing a safety accident.

[0050] The above-described embodiments are only preferred embodiments of the present application, and do not limit the present application in any form. Any person skilled in the art can make more possible changes and decorations to the technical scheme of the present application by using the disclosed technical content without departing from the scope of the technical scheme of the present application, or modify equivalent embodiments. Therefore, any equivalent changes within the scope of the technical scheme of the present application, according to the idea of the present application, should be covered by the protection scope of the present application.

Claims

1. A mobile reaction frame for large diameter shield launching, comprising a vertical portal, two first support frames (3), a plurality of second support frames (4), characterized in that: The vertical door frame comprises two top frames (21), two bottom frames (22) and a bottom connecting frame (23), the two top frames (21) are symmetrically arranged left and right, the two bottom frames (22) are symmetrically arranged left and right, one top frame (21) is detachably connected with one bottom frame (22) downward, and the bottom connecting frame (23) is connected between the two bottom frames (22). Wherein, the front faces of the two top frames (21) and the front faces of the two bottom frames (22) are jointly connected with a front support, the front support is used for sleeving and connecting a shield ring (1), the back faces of the top frames (21) and the back faces of the bottom frames (22) are jointly detachably installed with a first support frame (3), a plurality of second support frames (4) are sequentially connected front and back, and the first support frame (3) is detachably connected with the second support frame (4) located at the most front side.

2. The mobile reaction frame for large diameter shield launching according to claim 1, characterized in that: The bottom frame (22) is provided with a first sliding seat (221) at the bottom, a mounting frame (33) is connected between the first support frame (3) and the second support frame (4), a sliding rod (34) is connected between the bottom frame (22) and the mounting frame (33), and a second sliding seat (35) is slidably connected on the sliding rod (34).

3. The mobile reaction frame for large diameter shield launching according to claim 2, characterized in that: The first sliding seat (221) is provided with a plurality of first rollers (222) at the bottom, and the second sliding seat (35) is provided with a plurality of second rollers (351) at the bottom.

4. The mobile reaction frame for large diameter shield launching according to claim 1, characterized in that: The side wall of the top frame (21) is bent and formed with a fixing frame (211), and the fixing frame (211) is provided with a third roller (212).

5. The mobile reaction frame for large diameter shield launching according to claim 1, characterized in that: The front support comprises a plurality of top support blocks (51) jointly forming an annular structure, and the plurality of top support blocks (51) are sequentially connected in an annular manner, wherein two top support blocks (51) are detachably connected with one top frame (21), one top support block (51) is detachably connected with one bottom frame (22), and two top support blocks (51) are detachably connected with the bottom connecting frame (23).

6. The mobile reaction frame for large diameter shield launching according to claim 5, characterized in that: The front end of the top support block (51) is formed with a second limiting block (53), the inner side wall of the second limiting block (53) is flush with the inner side wall of the top support block (51), and a plurality of second limiting blocks (53) jointly form an annular structure.

7. The mobile reaction frame for large diameter shield launching according to claim 6, characterized in that: The inner side wall of the shield ring (1) is formed with a first limiting block (11), the first limiting block (11) is in an annular structure, and the first limiting block (11) and a plurality of second limiting blocks (53) are front and back clamped to limit the movement of the shield ring (1) on the front support.

8. The mobile reaction frame for large diameter shield launching according to claim 5, characterized in that: The inner side wall of the top support block (51) is formed with a first sliding guide rail (54), the first sliding guide rail (54) extends along the direction of the top support block (51), the bottom connecting frame (23) is formed with a second sliding guide rail (232), the second sliding guide rail (232) extends along the direction of the top support block (51), and the first sliding guide rail (54) and the second sliding guide rail (232) are front and back aligned.

9. The mobile reaction frame for large diameter shield launching according to claim 1, characterized in that: The first support frame (3) comprises a plurality of first support columns (31) and a plurality of first connecting rods (32). The plurality of first support columns (31) are arranged in sequence and spaced apart from top to bottom. The front end of the first support column (31) is connected with the top frame (21) or the bottom frame (22). The rear end of the first support column (31) is connected with the second support frame (4). The plurality of first connecting rods (32) are connected between every two adjacent first support columns (31) from top to bottom.

10. The mobile reaction frame for large diameter shield launching according to claim 9, characterized in that: The second support frame (4) comprises a plurality of second support columns (41) and a plurality of second connecting rods (42). The plurality of second support columns (41) are arranged in sequence and spaced apart from top to bottom. Every two adjacent second support columns (41) from front to back are connected to realize the connection between every two second support frames (4). At least one second connecting rod (42) is connected between every two adjacent second support columns (41) from top to bottom.

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