Prefabricated assembling formwork convenient to install for tunnel well

Abstract

The utility model discloses a prefabricated assembly formwork convenient to install for a tunnel well, and relates to the technical field of tunnels. A prefabricated assembly formwork convenient to install for a tunnel well comprises a first top formwork, a second top formwork and two side formworks, an adjusting assembly is arranged on the first top formwork and comprises a connecting base, a connecting block and a sliding installation base, and the sliding installation base is arranged on the first top formwork by unscrewing first fixing bolts on two fixing blocks in the adjusting assembly; the sliding mounting base is made to slide along the sliding mounting base groove, in the sliding process, the first top die is rotationally connected with the connecting base, the second top die is rotationally connected with the connecting block, adjustment of the relative opening and closing angle is achieved, and after the relative opening and closing angle is adjusted to a proper position, a first fixing bolt is screwed down; and the threads extend into the corresponding first fixing bolt grooves, and the sliding mounting seat is fixed on the connecting seat, so that the relative positions of the first top mold and the second top mold are fixed, and the practicability and the flexibility of the template are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel technology, and in particular to a prefabricated assembly template for easy installation in tunnel shafts. Background Technology

[0002] In the construction of tunnel shafts, the application of precast assembly formwork is becoming increasingly widespread. Traditional tunnel shaft construction often adopts on-site casting, which not only has a long construction cycle, but is also greatly affected by the site environment and human factors, making it difficult to guarantee the quality of the project. In contrast, precast assembly formwork has the advantages of fast construction speed and stable quality, which can effectively improve the construction efficiency and quality of tunnel shafts.

[0003] Existing precast assembly formwork still has some problems in practical use, especially in the installation of formwork at the top of tunnel shafts. Since the size and specifications of tunnel shafts may vary due to design requirements or geological conditions, the formwork needs to be able to flexibly adjust its size to adapt to different construction scenarios. However, the top structure of most precast assembly formwork is relatively fixed. Common precast assembly formwork often only has a single top formwork structure, which is difficult to effectively adjust according to the actual size of the tunnel shaft. When encountering tunnel shaft tops of different widths or curvatures, this fixed formwork structure either cannot be installed or cannot fit tightly against the top of the tunnel shaft after installation, leading to problems such as grout leakage during concrete pouring, which seriously affects the construction quality of the tunnel shaft. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a prefabricated assembly template for tunnel shafts that is easy to install. This solves the problem that since the size and specifications of tunnel shafts may vary due to design requirements or geological conditions, the template needs to be able to flexibly adjust its size to adapt to different construction scenarios. However, most prefabricated assembly templates currently have relatively fixed top structures. Common prefabricated assembly templates often only have a single top formwork structure, which is difficult to effectively adjust according to the actual size of the tunnel shaft. When encountering tunnel shaft tops of different widths or curvatures, this fixed template structure either cannot be installed or cannot fit tightly against the tunnel shaft top after installation, leading to problems such as grout leakage during concrete pouring, which seriously affects the construction quality of the tunnel shaft.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated assembly template for easy installation in tunnel shafts, comprising a first top mold, a second top mold, and two side molds, wherein the first top mold is provided with an adjustment component;

[0006] The adjustment assembly includes a connecting seat, a connecting block, and a sliding mounting seat. A sliding mounting seat groove is provided on one outer wall of the connecting seat. The outer wall of the sliding mounting seat is slidably connected to the inside of the sliding mounting seat groove. Two second conical block grooves are provided on both the upper and lower outer walls of the sliding mounting seat groove.

[0007] The upper end of the first top mold is rotatably connected to the outer wall of the connecting seat away from the connecting block. The upper end of the second top mold is rotatably connected to the outer wall of the connecting block away from the connecting seat. Both ends of the connecting seat are fixedly connected to the outer walls of the connecting seat. The outer walls of the two fixed blocks are threaded with the first fixing bolts. Multiple first fixing bolt slots are opened on both sides of the outer walls of the sliding mounting seat.

[0008] Preferably, the outer walls of the four conical blocks on the sliding mounting base are slidably connected to the interior of the corresponding second conical block groove;

[0009] In this configuration, the ends of the two first fixing bolts near the first fixing bolt slots are threaded into the interior of the sliding mounting seat slots and respectively connected to the internal threads of the corresponding first fixing bolt slots.

[0010] Preferably, the lower surfaces of the first and second top molds are provided with T-shaped block grooves, and T-shaped blocks are fixedly connected to the upper outer walls of the two side molds;

[0011] The outer walls of the two T-blocks are slidably connected to the interior of the corresponding T-block grooves.

[0012] Preferably, the lower surfaces of the first and second top molds are each provided with two conical block grooves, and the upper outer walls of the two side molds are each fixedly connected with two conical blocks;

[0013] The outer walls of the four conical blocks are slidably connected to the interior of the corresponding conical block grooves.

[0014] Preferably, each of the four conical block slots has a second fixing bolt slot inside;

[0015] Each of the four conical blocks has a second fixing bolt threaded onto its outer wall.

[0016] Preferably, the ends of the four second fixing bolts near the second fixing bolt slots are all threaded into the interior of the tapered block slot and respectively connected to the internal threads of the corresponding second fixing bolt slots.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The tunnel shaft uses a prefabricated assembly template that is easy to install. By loosening the first fixing bolts on the two fixing blocks in the adjustment assembly, the sliding mounting seat can be slid along the sliding mounting seat groove. During the sliding process, the first top mold is rotated and connected to the connecting seat, and the second top mold is rotated and connected to the connecting block, so as to adjust the relative opening and closing angle. After adjusting to the appropriate position, the first fixing bolts are tightened so that their threads extend into the corresponding first fixing bolt groove, and the sliding mounting seat is fixed on the connecting seat, thereby fixing the relative position of the first top mold and the second top mold. This effectively improves the practicality and flexibility of the template, while avoiding the difficulty of effectively adjusting it according to the actual size of the tunnel shaft. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the external structure of the sliding mounting base of this utility model;

[0022] Figure 3 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle;

[0023] Figure 4 This is a schematic diagram of the external structure of the connecting block of this utility model.

[0024] Reference numerals in the attached drawings: 1. First top mold; 2. Second top mold; 3. Connecting seat; 4. First fixing bolt; 5. Fixing block; 6. Connecting block; 7. Side mold; 8. Sliding mounting seat; 9. T-block groove; 10. Conical block groove; 11. Second fixing bolt; 12. T-block; 13. Conical block; 14. Second fixing bolt groove; 15. Second conical block groove; 16. Sliding mounting seat groove; 17. First fixing bolt groove. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Please see Figure 1-4 This utility model provides a technical solution: a prefabricated assembly template for easy installation in tunnel shafts, including a first top mold 1, a second top mold 2 and two side molds 7;

[0030] An adjustment component is provided on the first top mold 1;

[0031] The adjustment assembly includes a connecting seat 3, a connecting block 6, and a sliding mounting seat 8. A sliding mounting seat groove 16 is provided on one outer wall of the connecting seat 3. The outer wall of the sliding mounting seat 8 is slidably connected to the interior of the sliding mounting seat groove 16. Two second conical block grooves 15 are provided on the upper and lower outer walls of the sliding mounting seat groove 16. The outer walls of the four conical blocks on the sliding mounting seat 8 are slidably connected to the interior of the corresponding second conical block grooves 15. The upper end of the first top mold 1 is rotatably connected to the outer wall of the connecting seat 3 away from the connecting block 6. The upper end of the second top mold 2 is rotatably connected to the outer wall of the connecting block 6 away from the connecting seat 3. Fixing blocks 5 are fixedly connected to the outer walls of both ends of the connecting seat 3. The outer walls of the two fixing blocks 5 are threadedly connected to the first fixing bolts 4. Multiple first fixing bolt grooves 17 are provided on both outer walls of the sliding mounting seat 8. The ends of the two first fixing bolts 4 near the first fixing bolt grooves 17 are threadedly extended into the interior of the sliding mounting seat groove 16 and are respectively threadedly connected to the interior of the corresponding first fixing bolt grooves 17.

[0032] The first top mold 1 and the second top mold 2 are provided with T-shaped block grooves 9 on their lower surfaces. T-shaped blocks 12 are fixedly connected to the upper outer walls of the two side molds 7. The outer walls of the two T-shaped blocks 12 are slidably connected to the interior of the corresponding T-shaped block grooves 9. The first top mold 1 and the second top mold 2 are provided with two conical block grooves 10 on their lower surfaces. Two conical blocks 13 are fixedly connected to the upper outer walls of the two side molds 7. The outer walls of the four conical blocks 13 are slidably connected to the interior of the corresponding conical block grooves 10. The interior of the four conical block grooves 10 is provided with second fixing bolt grooves 14. The outer walls of the four conical blocks 13 are threadedly connected with second fixing bolts 11. The end of the four second fixing bolts 11 near the second fixing bolt grooves 14 extends threadedly into the interior of the conical block grooves 10 and is threadedly connected to the interior of the corresponding second fixing bolt grooves 14.

[0033] Furthermore, when using this device, if it is necessary to adjust the relative position of the first top mold 1 and the second top mold 2, loosen the first fixing bolts 4 on the two fixing blocks 5 so that they disengage from the first fixing bolt grooves 17 on the sliding mounting seat 8. Since the outer wall of the sliding mounting seat 8 is slidably connected to the inside of the sliding mounting seat groove 16 of the connecting seat 3, and the four conical blocks on the sliding mounting seat 8 are slidably engaged with the second conical block grooves 15 on the upper and lower sides of the sliding mounting seat groove 16, the sliding mounting seat 8 can be slid along the sliding mounting seat groove 16. During the sliding process, the first top mold 1 is rotated and connected to the connecting seat 3, and the second top mold 2 is rotated and connected to the connecting block 6 to adjust the relative opening and closing angle. After adjusting to the appropriate position, tighten the first fixing bolts 4 so that their threads extend into the corresponding first fixing bolt grooves 17, and fix the sliding mounting seat 8 on the connecting seat 3, thereby fixing the relative position of the first top mold 1 and the second top mold 2. After adjusting the position of part 2, begin installing the side molds 7. Align the T-blocks 12 at the upper ends of the two side molds 7 with the T-block grooves 9 on the lower surfaces of the first top mold 1 and the second top mold 2. Slide the side molds 7 along the T-block grooves 9 to engage the T-blocks 12 with the T-block grooves 9, achieving initial positioning of the side molds 7 and the top mold. Simultaneously, the tapered block 13 at the upper end of the side mold 7 will also enter the tapered block groove 10 on the lower surface of the top mold. Next, screw the second fixing bolt 11 into the outer wall of the tapered block 13 and bring it close to the second fixing bolt. One end of the bolt groove 14 is threaded into the conical block groove 10 and threadedly connected to the corresponding second fixing bolt groove 14. By tightening the second fixing bolt 11, the side mold 7 is firmly fixed to the top mold, completing the entire installation process of the prefabricated assembly template. When disassembling the template, the operation is carried out in reverse order: first loosen the second fixing bolt 11 to remove the side mold 7 from the top mold, then loosen the first fixing bolt 4 to adjust the position of the first top mold 1 and the second top mold 2 to facilitate the disassembly and handling of the template.

[0034] By loosening the first fixing bolts 4 on the two fixing blocks 5 in the adjustment assembly, the sliding mounting seat 8 is slid along the sliding mounting seat groove 16. During the sliding process, the first top mold 1 is rotated and connected to the connecting seat 3, and the second top mold 2 is rotated and connected to the connecting block 6, so that the relative opening and closing angle can be adjusted. After adjusting to the appropriate position, the first fixing bolts 4 are tightened so that their threads extend into the corresponding first fixing bolt groove 17, and the sliding mounting seat 8 is fixed on the connecting seat 3, thereby fixing the relative position of the first top mold 1 and the second top mold 2. This effectively improves the practicality and flexibility of the template, while avoiding the difficulty in effectively adjusting according to the actual size of the tunnel shaft.

[0035] Structural Description: First Top Mold 1 and Second Top Mold 2: First Top Mold 1 and Second Top Mold 2 are the top components of the prefabricated assembly template. They are connected by an adjustment assembly. The upper interior of the first top mold 1 is rotatably connected to the connecting seat 3, and the upper interior of the second top mold 2 is rotatably connected to the connecting block 6. They can be opened and closed relative to each other under the action of the adjustment assembly to adapt to the construction needs of tunnel shafts of different sizes. The lower surface of each is provided with T-shaped block grooves 9 and two conical block grooves 10. The T-shaped block grooves 9 are used to cooperate with the T-shaped blocks 12 of the side mold 7 to achieve the initial positioning and guidance of the side mold 7. The conical block grooves 10 are used to cooperate with the conical blocks 13 of the side mold 7, and are firmly fixed by the threaded connection of the second fixing bolt 11 and the second fixing bolt groove 14 to ensure the stability of the template during use.

[0036] Connecting seat 3: A sliding mounting seat groove 16 is provided on one outer wall, and two second conical block grooves 15 are provided on the upper and lower outer walls for cooperating with the sliding mounting seat 8. The outer walls at both ends of the connecting seat 3 are fixedly connected to fixing blocks 5. The fixing blocks 5 are provided with first fixing bolts 4. The first fixing bolts 4 are threadedly connected to the first fixing bolt grooves 17 on the sliding mounting seat 8 to fix the sliding mounting seat 8, thereby controlling the relative position of the first top mold 1 and the second top mold 2. The other end of the connecting seat 3 is rotatably connected to the first top mold 1, which plays a supporting and connecting role during the adjustment process.

[0037] Connecting block 6: One end is connected to the connecting seat 3, and the other end is rotatably connected to the second top mold 2. During the relative movement of the first top mold 1 and the second top mold 2, it plays the role of transmitting force and maintaining connection, ensuring that the two can coordinately adjust the opening and closing angle.

[0038] Sliding mounting seat 8: The outer wall is slidably connected to the sliding mounting seat groove 16 of the connecting seat 3. The four conical blocks on it are slidably engaged with the second conical block groove 15, which plays a guiding and anti-displacement role during the sliding process. Multiple first fixing bolt grooves 17 are opened on the outer walls on both sides of the sliding mounting seat 8, which are engaged with the first fixing bolts 4, and can be fixed on the connecting seat 3 in a suitable position to achieve locking of the relative position of the first top mold 1 and the second top mold 2.

[0039] Side formwork 7: Side formwork 7 is a side component of the prefabricated assembled formwork. Its upper outer wall is fixedly connected with T-shaped block 12 and two conical blocks 13. T-shaped block 12 slides into T-shaped block groove 9 on the lower surface of top formwork to achieve initial positioning and quick installation of side formwork 7. Conical block 13 fits into conical block groove 10 on the lower surface of top formwork and is threadedly connected to second fixing bolt 11 and second fixing bolt groove 14 to firmly fix side formwork 7 on top formwork, ensuring that the formwork can withstand construction loads such as concrete pouring during tunnel construction and maintain the stability of the overall structure.

[0040] First fixing bolt 4: threadedly connected to fixing block 5, and threadedly connected to first fixing bolt groove 17 on sliding mounting seat 8 to fix sliding mounting seat 8, thereby adjusting and fixing the relative position of first top mold 1 and second top mold 2. It is a key component for adjusting assembly to realize adjustment function.

[0041] The second fixing bolt 11 is threaded to the conical block 13 on the side mold 7 and is threaded to the second fixing bolt groove 14 on the top mold to firmly fix the side mold 7 to the top mold, ensuring the stability of the overall structure of the prefabricated assembly template and playing an important fixing role in the template installation process.

[0042] Fixed block 5: Fixedly connected to the outer walls of both ends of the connecting seat 3, used to install the first fixing bolt 4, providing an installation base for the first fixing bolt 4, and realizing the adjustment component's function of adjusting and fixing the position of the first top mold 1 and the second top mold 2 through the cooperation of the first fixing bolt 4 and the sliding mounting seat 8.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A prefabricated assembly template for easy installation in tunnel shafts, comprising a first top mold (1), a second top mold (2), and two side molds (7), characterized in that: An adjustment component is provided on the first top mold (1); The adjustment assembly includes a connecting seat (3), a connecting block (6), and a sliding mounting seat (8). A sliding mounting seat groove (16) is provided on one side of the outer wall of the connecting seat (3). The outer wall of the sliding mounting seat (8) is slidably connected to the inside of the sliding mounting seat groove (16). Two second conical block grooves (15) are provided on the upper and lower outer walls of the sliding mounting seat groove (16). Among them, the upper end of the first top mold (1) is rotatably connected to the outer wall of the connecting seat (3) away from the connecting block (6), the upper end of the second top mold (2) is rotatably connected to the outer wall of the connecting block (6) away from the connecting seat (3), both ends of the connecting seat (3) are fixedly connected to the outer wall of the connecting seat (3), and the outer walls of the two fixed blocks (5) are threaded with the first fixing bolts (4), and both sides of the sliding mounting seat (8) are provided with multiple first fixing bolt slots (17).

2. The prefabricated assembly template for convenient installation in tunnel shafts according to claim 1, characterized in that: The outer walls of the four conical blocks on the sliding mounting base (8) are respectively slidably connected to the interior of the corresponding second conical block groove (15); Among them, the ends of the two first fixing bolts (4) near the first fixing bolt groove (17) are threaded into the interior of the sliding mounting seat groove (16) and respectively connected to the internal threads of the corresponding first fixing bolt groove (17).

3. The prefabricated assembly template for convenient installation in tunnel shafts according to claim 1, characterized in that: The lower surfaces of the first top mold (1) and the second top mold (2) are provided with T-shaped block grooves (9), and the upper outer walls of the two side molds (7) are fixedly connected with T-shaped blocks (12); The outer walls of the two T-blocks (12) are slidably connected to the interior of the corresponding T-block grooves (9).

4. A prefabricated assembly template for convenient installation in tunnel shafts according to claim 1, characterized in that: The lower surfaces of the first top mold (1) and the second top mold (2) are provided with two conical block grooves (10), and the upper outer walls of the two side molds (7) are fixedly connected with two conical blocks (13); The outer walls of the four conical blocks (13) are slidably connected to the interior of the corresponding conical block grooves (10).

5. A prefabricated assembly template for convenient installation in tunnel shafts according to claim 4, characterized in that: Each of the four conical block grooves (10) has a second fixing bolt groove (14) inside; The outer walls of the four conical blocks (13) are all threaded with second fixing bolts (11).

6. A precast and assembled formwork for a tunnel shaft with easy installation according to claim 5, characterized in that: The ends of the four second fixing bolts (11) near the second fixing bolt groove (14) are all threaded into the interior of the tapered block groove (10) and respectively connected to the internal threads of the corresponding second fixing bolt groove (14).

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