Shield segment fixing device

Abstract

The utility model discloses a shield segment fixing device, and relates to the field of shield segments, the shield segment fixing device comprises a segment and four butt joint blocks, the two sides of the segment are provided with butt joint grooves, and locking assemblies are arranged in the butt joint blocks. Through the arrangement of the locking assembly, after pipe pieces are spliced, a first inserting plate on an inner sealing plate and a second inserting plate on an outer sealing plate are inserted into an inserting opening and inserted into a movable cavity, then a worker inserts a cross-shaped handle into a cross-shaped groove and then rotates a rotating block through the cross-shaped handle, the rotating block drives a threaded column to rotate, and then the pipe pieces are inserted into the movable cavity; then the threaded column moves downwards, the pressing block is driven to move downwards, the pressing block pushes the ejector block to move, the ejector block drives the push block to move, the push block pushes the movable block to move, the movable block drives the locking block to move when moving, the locking block is inserted into the locking groove, and then the first insertion plate and the second insertion plate can be locked and fixed; in this way, the installation efficiency of the outer sealing plate and the inner sealing plate can be improved.

Description

Technical Field

[0001] The utility model relates to the field of shield segments, in particular to a shield segment fixing device. Background Technique

[0002] Shield segments are the main assembled components in shield construction. They are the outermost barrier of the tunnel, bearing the functions of resisting soil pressure, groundwater pressure, and some special loads. Shield segments are the permanent lining structure of shield tunnels. The quality of shield segments is directly related to the overall quality and safety of the tunnel, affecting the waterproof performance and durability of the tunnel. At present, shield segments need to be fixedly connected through a fixing mechanism.

[0003] According to the Chinese patent with the publication number CN219509643U, by setting connection blocks and limit blocks, several segments can be quickly installed and fixed into a cylindrical pipeline. Then, through connecting rods and limit rods, the inner sealing plate and the outer closing plate can be quickly and preliminarily installed and fixed. Finally, through expansion bolts, the inner sealing plate and the outer closing plate can be tightly connected, effectively avoiding leakage at the joint of the segments.

[0004] Regarding the above-mentioned disclosed patent content, the inner sealing plate and the outer closing plate are installed at the joint of the segments through expansion bolts to improve the leakage at the joint of the segments. However, when installing through bolts, it is necessary to hold the inner sealing plate or the outer sealing plate on the segment so that the bolt holes on the inner sealing plate are aligned with the bolt holes on the segment, and then the bolts can be screwed into the corresponding bolt holes for locking and fixing. However, when the inner sealing plate or the outer sealing plate moves slightly during the installation process, the bolt holes on its surface will be misaligned with the bolt holes on the segment, making it difficult for the bolts to be screwed into the bolt holes for fixing. Therefore, it is necessary to frequently adjust the position of the inner sealing plate or the outer sealing plate to align the bolt holes, and this process will consume a lot of time, thus reducing the installation efficiency of the inner sealing plate or the outer sealing plate. Content of the Utility Model

[0005] Based on this, the purpose of the present utility model is to provide a shield segment fixing device to solve the technical problem of inconvenient and fast installation of the inner sealing plate or the outer sealing plate.

[0006] To achieve the above object, the present utility model provides the following technical solution: a shield segment fixing device, comprising a segment and four docking blocks. Docking grooves are provided on both sides of the segment. A locking assembly is provided inside the docking block, and the locking assembly includes a plurality of first inserting plates and second inserting plates, a plurality of inserting openings provided on the segment, two movable cavities provided inside the docking block, and a groove provided on the outer surface of the docking block. A plurality of first sliding grooves and second sliding grooves are respectively provided on the inner walls of the movable cavities. Two top blocks are provided inside the movable cavities, and a pushing block is installed on one side of the top block. A second spring is installed inside the second sliding groove, and the end of the second spring is connected to a second sliding block. A movable block is installed on one side of the second sliding block, and a locking block is connected to the movable block. Locking grooves are provided on both the first inserting plate and the second inserting plate. A threaded column is threadedly connected inside the groove, and one end of the threaded column is connected to a pressing block through a bearing.

[0007] By adopting the above technical solution, when the pushing block moves, it will push the movable block to move. When the movable block moves, it will drive the locking block to move, so that the locking block is inserted into the locking groove, thereby locking and fixing the first inserting plate and the second inserting plate.

[0008] Furthermore, one side of the first inserting plate penetrates through the inserting opening and is connected to an inner sealing plate, and an inner sealing gasket is installed on the outer wall of the inner sealing plate.

[0009] By adopting the above technical solution, the inner sealing plate and the inner sealing gasket can seal the inner wall of the segment docking part.

[0010] Furthermore, one side of the second inserting plate penetrates through the inserting opening and is connected to an outer sealing plate, and an outer sealing gasket is provided on the inner wall of the outer sealing plate.

[0011] By adopting the above technical solution, the outer sealing plate and the outer sealing gasket can seal the outer wall of the segment docking part.

[0012] Furthermore, a rotating block is installed at the other end of the threaded column, and a cross slot is provided at the top of the rotating block.

[0013] By adopting the above technical solution, it is convenient for the staff to insert a cross handle into the cross slot, and then rotate the cross handle to make the rotating block rotate, thereby driving the threaded column to rotate.

[0014] Furthermore, one side of the top block, both sides of the pressing block, one side of the movable block, and one side of the pushing block are all arranged in an inclined plane, and both sides of the pressing block are in contact with the top block.

[0015] By adopting the above technical solution, so that when the pressing block moves, it can drive the top block to move, and the top block will drive the pushing block to move.

[0016] Further, a first spring is installed inside the first chute, and one end of the first spring is connected to a first slider, and the first slider is connected to the top block.

[0017] By adopting the above technical solution, when the top block moves, it will drive the first slider inside the first chute, and then the first spring can be compressed, so that the first spring is compressed under force.

[0018] Further, the docking block is adapted to the docking groove.

[0019] By adopting the above technical solution, it is convenient for the docking block to be inserted into the docking groove, and then the segments can be spliced and assembled.

[0020] Further, one side of the push block is in contact with the movable block, and the movable block is slidably connected to the second chute through a second slider.

[0021] By adopting the above technical solution, when the push block moves, it will push the movable block to move, and the movable block will drive the second slider to slide inside the second chute.

[0022] Further, the locking block is adapted to the locking groove, and the outer walls of the first plug board and the second plug board are both in contact with the inner wall of the socket.

[0023] By adopting the above technical solution, after the locking block is inserted into the locking groove, the first plug board and the second plug board can be locked, and then it is convenient to limit and fix the inner sealing plate and the outer sealing plate.

[0024] Further, the inner sealing gasket is closely attached to the inner wall of the segment, and the outer sealing gasket is closely attached to the outer wall of the segment.

[0025] By adopting the above technical solution, the inner sealing gasket and the outer sealing gasket are provided to improve the sealing performance at the joint of the segments and prevent water seepage.

[0026] In summary, the present utility model mainly has the following beneficial effects:

[0027] The utility model is provided with a locking assembly. After the segments are spliced, the first plug board on the inner sealing plate and the second plug board on the outer sealing plate are inserted into the socket and then into the movable cavity. Then, the staff inserts the cross handle into the cross groove, and then rotates the rotating block through the cross handle. The rotating block drives the threaded column to rotate, so that the threaded column moves downward and drives the pressing block to move downward. The pressing block pushes the top block to move, and the top block drives the pushing block to move. When the pushing block moves, it will push the movable block to move, and when the movable block moves, it will drive the locking block to move, so that the locking block is inserted into the locking groove, thereby locking and fixing the first plug board and the second plug board. In this way, the installation of the outer sealing plate and the inner sealing plate can be completed, and the position of the inner sealing plate or the outer sealing plate does not need to be adjusted in real time during installation, thereby improving the installation efficiency of the outer sealing plate and the inner sealing plate. At the same time, the segments can be connected. In this way, the outer sealing plate and the inner sealing plate can be quickly installed, and the operation steps of splicing the segments are simplified, thus improving the splicing efficiency of the segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall three-dimensional structural schematic diagram of the utility model;

[0029] Figure 2 is the overall front-sectional structural schematic diagram of the utility model;

[0030] Figure 3 is the partial structural schematic diagram of the segment of the utility model;

[0031] Figure 4 is the three-dimensional structural schematic diagram of the docking block of the utility model;

[0032] Figure 5 is the three-dimensional structural schematic diagram of the inner sealing plate of the utility model;

[0033] Figure 6 is the sectional structural schematic diagram of the docking block of the utility model;

[0034] Figure 7 is the three-dimensional structural schematic diagram of the first plug board of the utility model;

[0035] Figure 8 of the utility model Figure 2 is the enlarged structural schematic diagram at A in

[0036] In the figure: 1, segment; 2, docking block; 3, inner sealing plate; 4, inner sealing gasket; 5, outer sealing plate; 6, outer sealing gasket; 7, docking groove; 8, locking assembly; 801, moving cavity; 802, top block; 803, first slider; 804, first chute; 805, first spring; 806, push block; 807, moving block; 808, second chute; 809, second slider; 810, second spring; 811, locking block; 812, first plug board; 813, locking groove; 814, socket; 815, groove; 816, rotating block; 817, threaded column; 818, pressing block; 819, second plug board. Specific implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0038] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0039] Embodiment 1:

[0040] A shield segment fixing device, as Figures 1 - 8 shown, includes a segment 1 and four docking blocks 2. Docking grooves 7 are opened on both sides of the segment 1. A locking assembly 8 is arranged inside the docking block 2. One side of the first plug board 812 penetrates through the socket 814 and is connected to an inner sealing plate 3. The inner sealing plate 3 and the inner sealing gasket 4 can seal the inner wall of the docking part of the segment 1. One side of the second plug board 819 penetrates through the socket 814 and is connected to an outer sealing plate 5. The outer sealing plate 5 and the outer sealing gasket 6 can seal the outer wall of the docking part of the segment 1. The docking block 2 is adapted to the docking groove 7, which is convenient for the docking block 2 to be inserted into the docking groove 7, and then the segments 1 can be spliced and assembled.

[0041] Specifically, the locking assembly 8 includes a plurality of first plug boards 812 and second plug boards 819, a plurality of sockets 814 opened on the segment 1, two moving cavities 801 opened inside the docking block 2 and a groove 815 opened on the outer surface of the docking block 2. A plurality of first chutes 804 and second chutes 808 are respectively opened on the inner walls of the moving cavities 801. Two top blocks 802 are arranged inside the moving cavities 801, and a push block 806 is installed on one side of the top block 802. A second spring 810 is installed inside the second chute 808, and the end of the second spring 810 is connected to a second slider 809.

[0042] Specifically, a movable block 807 is installed on one side of the second slider 809, and a locking block 811 is connected to the movable block 807. Locking grooves 813 are formed on both the first insertion plate 812 and the second insertion plate 819. One side of the push block 806 is in contact with the movable block 807. The movable block 807 is slidably connected to the second chute 808 through the second slider 809. When the push block 806 moves, it will push the movable block 807 to move, and the movable block 807 will drive the second slider 809 to slide inside the second chute 808. A threaded column 817 is threadedly connected to the groove 815, and one end of the threaded column 817 is connected to a pressing block 818 through a bearing. When the push block 806 moves, it will push the movable block 807 to move. When the movable block 807 moves, it will drive the locking block 811 to move, so that the locking block 811 is inserted into the locking groove 813, thereby locking and fixing the first insertion plate 812 and the second insertion plate 819.

[0043] Specifically, the locking block 811 is adapted to the locking groove 813. The outer walls of the first insertion plate 812 and the second insertion plate 819 are both in contact with the inner wall of the socket 814. After the locking block 811 is inserted into the locking groove 813, the first insertion plate 812 and the second insertion plate 819 can be locked, thereby facilitating the limiting and fixing of the inner sealing plate 3 and the outer sealing plate 5. A rotating block 816 is installed at the other end of the threaded column 817, and a cross groove is formed at the top of the rotating block 816, which is convenient for the staff to insert a cross handle into the cross groove and then rotate the cross handle to drive the rotating block 816 to rotate, thereby driving the threaded column 817 to rotate.

[0044] Specifically, one side of the top block 802, both sides of the pressing block 818, and one side of the movable block 807 and one side of the push block 806 are all inclined surfaces. Both sides of the pressing block 818 are in contact with the top block 802, so that when the pressing block 818 moves, it can drive the top block 802 to move, and the top block 802 will drive the push block 806 to move. A first spring 805 is installed inside the first chute 804, and one end of the first spring 805 is connected to a first slider 803. The first slider 803 is connected to the top block 802. The top block 802 is slidably connected to the first chute 804 through the first slider 803. When the top block 802 moves, it will drive the first slider 803 inside the first chute 804, thereby squeezing the first spring 805 and causing the first spring 805 to be compressed under force. The outer wall of the pressing block 818 is in contact with the inner wall of the movable cavity 801, which can limit the pressing block 818 to prevent it from rotating, so that the pressing block 818 can only move up and down.

[0045] Embodiment 2:

[0046] On the basis of the above Embodiment 1, in order to improve the sealing performance of the joint of the segment 1 after docking, the following structure is provided.

[0047] Refer to Figures 1 - 6, an inner sealing gasket 4 is installed on the outer wall of the inner sealing plate 3, and an outer sealing gasket 6 is provided on the inner wall of the outer sealing plate 5. The inner sealing gasket 4 is closely attached to the inner wall of the segment 1, and the outer sealing gasket 6 is closely attached to the outer wall of the segment 1. The inner sealing gasket 4 and the outer sealing gasket 6 are provided to improve the sealing performance at the butt joint of the segment 1 and prevent water seepage.

[0048] The working principle of the present utility model is as follows: First, when installing the segment 1, the ends of the segment 1 can be butted. Then, the docking block 2 is inserted into the docking groove 7. Next, the inner sealing plate 3 and the inner sealing gasket 4 are attached to the inner wall of the segment 1, and the outer sealing plate 5 and the outer sealing gasket 6 are attached to the outer wall of the segment 1. And the first insertion plate 812 and the second insertion plate 819 are inserted into the interior of the docking block 2 through the insertion opening 814. Then, the staff inserts the cross handle into the cross groove, and then rotates the rotating block 816 through the cross handle. The rotating block 816 drives the threaded column 817 to rotate, thereby causing the threaded column 817 to move downward and driving the pressing block 818 to move downward. The pressing block 818 pushes the top block 802 to move, and the top block 802 drives the pushing block 806 to move. When the pushing block 806 moves, it will push the movable block 807 to move. When the movable block 807 moves, it will drive the locking block 811 to move, so that the locking block 811 is inserted into the locking groove 813, thereby locking and fixing the first insertion plate 812 and the second insertion plate 819. In this way, the installation of the outer sealing plate 5 and the inner sealing plate 3 can be completed, and at the same time, the segments 1 can be fixed to each other.

[0049] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and are not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A shield segment fixing device, comprising a segment (1) and four docking blocks (2), characterized in that: Both sides of the segment (1) are provided with docking grooves (7). A locking component (8) is arranged inside the docking block (2), and the locking component (8) includes a plurality of first insertion plates (812) and second insertion plates (819), a plurality of insertion openings (814) formed in the segment (1), two movable cavities (801) formed inside the docking block (2), and a groove (815) formed on the outer surface of the docking block (2). A plurality of first sliding grooves (804) and second sliding grooves (808) are respectively formed on the inner walls of the movable cavities (801). Two top blocks (802) are arranged inside the movable cavities (801), and a push block (806) is installed on one side of the top block (802). A second spring (810) is installed inside the second sliding groove (808), and the end of the second spring (810) is connected to a second sliding block (809). An movable block (807) is installed on one side of the second sliding block (809), and a locking block (811) is connected to the movable block (807). Locking grooves (813) are formed on both the first insertion plate (812) and the second insertion plate (819). A threaded post (817) is threadedly connected inside the groove (815), and one end of the threaded post (817) is connected to a pressing block (818) through a bearing.

2. The shield segment fixing device according to claim 1, wherein: One side of the first insertion plate (812) penetrates through the insertion opening (814) and is connected to an inner sealing plate (3), and an inner sealing gasket (4) is installed on the outer wall of the inner sealing plate (3).

3. The shield segment fixing device according to claim 2, wherein: One side of the second insertion plate (819) penetrates through the insertion opening (814) and is connected to an outer sealing plate (5), and an outer sealing gasket (6) is arranged on the inner wall of the outer sealing plate (5).

4. The shield segment fixing device according to claim 1, characterized in that: A rotating block (816) is installed at the other end of the threaded post (817), and a cross groove is formed at the top of the rotating block (816).

5. The shield segment fixing device according to claim 1, characterized in that: One side of the top block (802), both sides of the pressing block (818), one side of the movable block (807), and one side of the push block (806) are all arranged in an inclined shape, and both sides of the pressing block (818) are in contact with the top block (802).

6. The shield segment fixing device according to claim 1, wherein: A first spring (805) is installed inside the first sliding groove (804), and one end of the first spring (805) is connected to a first sliding block (803), and the first sliding block (803) is connected to the top block (802).

7. The shield segment fixing device according to claim 1, characterized in that: The docking block (2) is adapted to the docking groove (7).

8. The shield segment fixing device according to claim 1, wherein: One side of the push block (806) is in contact with the movable block (807), and the movable block (807) is slidably connected to the second sliding groove (808) through the second sliding block (809).

9. The shield segment fixing device according to claim 1, characterized in that: The locking block (811) is adapted to the locking groove (813), and the outer walls of both the first insertion plate (812) and the second insertion plate (819) are in contact with the inner wall of the insertion opening (814).

10. A shield segment fixing device according to claim 3, characterized in that: The inner sealing gasket (4) is in close contact with the inner wall of the segment (1), and the outer sealing gasket (6) is in close contact with the outer wall of the segment (1).

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