Blind pipe positioning tool for tunnel construction

Abstract

The utility model discloses a blind pipe positioning tool for tunnel construction, which belongs to the technical field of tunnel construction, and comprises a plurality of main supporting seats, the top surfaces of the plurality of main supporting seats are respectively and fixedly connected with a rotating base pipe, and the plurality of rotating base pipes are respectively and movably sleeved with a rotating rod; the two ends of the rotating rod are fixedly connected with upper arc-shaped rings correspondingly. According to the blind pipe positioning tool, the fixing connecting rings, the connecting bolts and the nuts are used in cooperation, the multiple main supporting bases, the multiple lower connecting plates and the multiple upper connecting plates can be connected so that the positioning tool matched with the blind pipe in length can be assembled, and then the blind pipe positioning tool is suitable for positioning blind pipes of different lengths; in addition, when the positioning tool is used, the blind pipe is placed on the inner sides of the multiple lower arc-shaped rings and the multiple upper arc-shaped rings, the multiple lower arc-shaped rings and the multiple upper arc-shaped rings are used for positioning the blind pipe, displacement deformation of the blind pipe during pouring is avoided, and the practicability of the positioning tool is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, and more specifically, to a blind pipe positioning tooling for tunnel construction. Background Technique

[0002] With the continuous development of China's modern economy, the construction of high-speed railways is gradually extending to remote areas and complex strata, and the number of tunnels passing through high-pressure water-rich strata is increasing. When a tunnel is connected to an aquiferous stratum and the drainage facilities of the lining are imperfect, disasters will inevitably occur. Currently, the common drainage method is to bury drainage blind pipes between the primary support and the lining of the tunnel to introduce the water in the surrounding rock into the tunnel drainage ditch and discharge it outside the tunnel. Since the blind pipe is a flexible material, during the pouring process of the tunnel lining, due to the impact and floating of the concrete, it is extremely easy to cause the positioning deviation of the blind pipe, which does not meet the design requirements.

[0003] After retrieval, the utility model patent with the publication number of CN218266022U discloses a positioning tooling for the secondary lining drainage blind pipe. This tooling consists of two groups of arc-shaped bodies in the upper and lower parts; the upper arc-shaped body includes an upper connecting plate, a sliding component, and several upper fixing rings. The sliding component includes a sliding rod and several sleeves. The upper connecting plate and the sliding rod are arranged in parallel. One end of the upper fixing ring is fixedly arranged on the upper connecting plate, and the other end is fixedly arranged on the sliding rod. The sleeves are sleeved on the sliding rod at intervals and can rotate circumferentially; the lower arc-shaped body includes a connecting rod, several lower fixing rings, and a lower connecting plate. The connecting rod and the lower connecting plate are arranged in parallel. One end of the lower fixing ring is fixedly arranged on the connecting rod, and the other end is fixedly arranged on the lower connecting plate. The connecting rod is fixedly connected to the sleeve; the upper connecting plate and the lower connecting plate are connected through an anchoring device; by using this tooling, the drainage blind pipe can be directly placed on it, so as to achieve the precise positioning of the drainage blind pipe, and the position of the drainage blind pipe will not shift during the concrete pouring process.

[0004] However, the above patent still has the following deficiencies: The overall length of the tooling is fixed, which is only convenient for positioning and supporting blind pipes with a specific length. For this reason, we propose a blind pipe positioning tooling for tunnel construction. Content of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a blind pipe positioning tooling for tunnel construction.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] A blind pipe positioning tooling for tunnel construction, comprising a plurality of main support seats. Rotating base pipes are respectively and fixedly connected to the top surfaces of the plurality of main support seats. Rotating rods are movably sleeved on the plurality of rotating base pipes. Upper arc-shaped rings are respectively and fixedly connected to both ends of the rotating rods. Upper connecting plates are respectively and fixedly connected to the ends of the two upper arc-shaped rings. Two lower arc-shaped rings are respectively and fixedly connected to the bottom surfaces of the main support seats. Lower connecting plates are respectively and fixedly connected to the ends of the two lower arc-shaped rings. A fastening mechanism is arranged on the lower connecting plates and the upper connecting plates. Fixed connection rings are respectively and fixedly connected to both ends of the main support seats, the lower connecting plates and the upper connecting plates. Connecting bolts are sleeved on two adjacent fixed connection rings, and nuts are threadedly installed at the ends of the connecting bolts.

[0008] As a preferred solution of the present utility model, the fastening mechanism includes screw holes opened on the lower connecting plates and the upper connecting plates, and fastening bolts are threadedly installed on the screw holes.

[0009] As a preferred solution of the present utility model, the inner diameters of the lower arc-shaped rings and the upper arc-shaped rings are adapted to the outer diameter of the blind pipe.

[0010] As a preferred solution of the present utility model, the inner diameter of the fixed connection ring is equal to the outer diameter of the connecting bolt.

[0011] As a preferred solution of the present utility model, the inner diameter of the rotating base pipe is equal to the outer diameter of the rotating rod.

[0012] As a preferred solution of the present utility model, the side surface of the upper arc-shaped ring is in fit with the end surface of the rotating base pipe.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] In the present utility model, through the combined use of the fixed connection rings, the connecting bolts and the nuts, the connection between the plurality of main support seats, the plurality of lower connecting plates and the plurality of upper connecting plates can be realized, so as to assemble a positioning tooling adapted to the length of the blind pipe, and further be applicable to the positioning of blind pipes with different lengths. In addition, when in use, the blind pipe is placed inside the plurality of lower arc-shaped rings and the plurality of upper arc-shaped rings, and the plurality of lower arc-shaped rings and the plurality of upper arc-shaped rings are used to position the blind pipe, avoiding the displacement and deformation of the blind pipe during pouring, and having good practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the overall structural explosion diagram of the present utility model;

[0017] Figure 3 is the structural schematic diagram of the rotating base pipe of the present utility model.

[0018] Description of the reference numerals in the figure:

[0019] 1. Main support base; 2. Rotating base tube; 3. Lower arc ring; 4. Lower connecting plate; 5. Rotating rod; 6. Upper arc ring; 7. Upper connecting plate; 8. Fastening mechanism; 9. Fixed connection ring; 10. Connecting bolt; 11. Nut; 12. Screw hole; 13. Fastening bolt. Specific embodiments

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] Embodiment:

[0024] Please refer to Figures 1-3, A blind pipe positioning tooling for tunnel construction, including a plurality of main support seats 1. The top surfaces of the plurality of main support seats 1 are respectively fixedly connected with rotating base pipes 2. Rotating rods 5 are movably sleeved on the plurality of rotating base pipes 2. Upper arc-shaped rings 6 are respectively fixedly connected to both ends of the rotating rods 5. Upper connecting plates 7 are respectively fixedly connected to the ends of the two upper arc-shaped rings 6. Two lower arc-shaped rings 3 are respectively fixedly connected to the bottom surfaces of the main support seats 1. Lower connecting plates 4 are respectively fixedly connected to the ends of the two lower arc-shaped rings 3. A fastening mechanism 8 is arranged on the lower connecting plates 4 and the upper connecting plates 7. Fixed connection rings 9 are respectively fixedly connected to both ends of the main support seats 1, the lower connecting plates 4 and the upper connecting plates 7. A connecting bolt 10 is sleeved on two adjacent fixed connection rings 9, and a nut 11 is threadedly installed at the end of the connecting bolt 10.

[0025] Specifically, please refer to Figures 1 to 3 , The fastening mechanism 8 includes screw holes 12 opened on the lower connecting plates 4 and the upper connecting plates 7, and fastening bolts 13 are threadedly installed in the screw holes 12.

[0026] In this embodiment, the lower connecting plates 4 and the upper connecting plates 7 are connected through the cooperation of the screw holes 12 and the fastening bolts 13.

[0027] Specifically, please refer to Figure 1 , The inner diameters of the lower arc-shaped rings 3 and the upper arc-shaped rings 6 are adapted to the outer diameter of the blind pipe.

[0028] In this embodiment, the stability of the blind pipe placed inside the lower arc-shaped rings 3 and the upper arc-shaped rings 6 is ensured.

[0029] Specifically, please refer to Figure 2 and Figure 3 , The inner diameter of the fixed connection ring 9 is equal to the outer diameter of the connecting bolt 10.

[0030] In this embodiment, the stability of the connecting bolt 10 sleeved on the fixed connection ring 9 is ensured, thereby ensuring the stability of the connection between two main support seats 1, two lower connecting plates 4 and two upper connecting plates 7.

[0031] Specifically, please refer to Figure 3 , The inner diameter of the rotating base pipe 2 is equal to the outer diameter of the rotating rod 5.

[0032] In this embodiment, the stability of the rotating rod 5 sleeved in the inner cavity of the rotating base pipe 2 is ensured.

[0033] Specifically, please refer to Figure 3 , The side surface of the upper arc-shaped ring 6 is in contact with the end surface of the rotating base pipe 2.

[0034] In this embodiment, the stable installation of the rotating rod 5 on the rotating base pipe 2 is achieved by the contact between the side surface of the upper arc-shaped ring 6 and the end surface of the rotating base pipe 2.

[0035] Working principle: When in use, first, the hands of multiple main support seats 1, multiple lower connecting plates 4, and multiple upper connecting plates 7 are fitted together, and the fixing connection rings 9 at the ends of the main support seats 1, lower connecting plates 4, and upper connecting plates 7 are aligned. Then, a connecting bolt 10 is inserted into two adjacent fixing connection rings 9, and a nut 11 is threadedly installed at the end of the connecting bolt 10 to connect two adjacent main support seats 1, lower connecting plates 4, and upper connecting plates 7. In this way, multiple main support seats 1, multiple lower connecting plates 4, and multiple upper connecting plates 7 are connected to make the length of the positioning tooling match the length of the blind pipe. Finally, the assembled tooling is placed into the tunnel pouring mold. Additionally, the blind pipe is placed on multiple lower arc-shaped rings 3, the rotating rod 5 is rotated to place the upper arc-shaped ring 6 above the blind hole, and the lower connecting plate 4 and the upper connecting plate 7 are connected by the threaded cooperation of the screw holes 12 and fastening bolts 13 on the lower connecting plate 4 and the upper connecting plate 7 to place the blind pipe inside the lower arc-shaped ring 3 and the upper arc-shaped ring 6. The blind pipe is positioned by multiple lower arc-shaped rings 3 and multiple upper arc-shaped rings 6 to prevent the blind pipe from shifting and deforming during pouring. That's it.

[0036] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A blind pipe positioning tool for tunnel construction, characterized in that: The invention comprises a plurality of main support seats (1), the top surfaces of the plurality of main support seats (1) are respectively fixedly connected with rotating base tubes (2), the plurality of rotating base tubes (2) are respectively movably sleeved with rotating rods (5), the two ends of the rotating rods (5) are respectively fixedly connected with upper arc rings (6), the ends of the two upper arc rings (6) are respectively fixedly connected with upper connecting plates (7), the bottom surfaces of the main support seats (1) are respectively fixedly connected with two lower arc rings (3), the ends of the two lower arc rings (3) are respectively fixedly connected with lower connecting plates (4), the lower connecting plates (4) and the upper connecting plates (7) are provided with fastening mechanisms (8), the two ends of the main support seats (1), the lower connecting plates (4) and the upper connecting plates (7) are respectively fixedly connected with fixed connecting rings (9), two adjacent fixed connecting rings (9) are sleeved with connecting bolts (10), and the ends of the connecting bolts (10) are threadedly mounted with nuts (11).

2. A blind pipe positioning tool for tunnel construction according to claim 1, characterized in that: The fastening mechanism (8) comprises screw holes (12) formed on the lower connecting plate (4) and the upper connecting plate (7), and fastening bolts (13) are threadedly mounted on the screw holes (12).

3. The blind pipe positioning tool for tunnel construction according to claim 1, characterized in that: The inner diameters of the lower arc-shaped ring (3) and the upper arc-shaped ring (6) are adapted to the outer diameter of the blind pipe.

4. The blind pipe positioning tool for tunnel construction according to claim 1, characterized in that: The inner diameter of the fixed connection ring (9) is equal to the outer diameter of the connection bolt (10).

5. The blind pipe positioning tool for tunnel construction according to claim 1, characterized in that: The inner diameter of the rotating base tube (2) is equal to the outer diameter of the rotating rod (5).

6. The blind pipe positioning tool for tunnel construction according to claim 1, characterized in that: The side surface of the upper arc-shaped ring (6) is in contact with the end surface of the rotating base tube (2).

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