Tunnel concrete wet spraying spiral pipe

Abstract

The utility model relates to the technical field of concrete wet spraying, in particular to a tunnel concrete wet spraying spiral pipe which comprises an outer protection pipe, an inner pipe is fixedly connected into the outer protection pipe, a plurality of exhaust holes are formed in the outer portion of the inner pipe, an inner spiral is formed in the inner wall of the inner pipe, and installation bases are fixedly connected to the left end and the right end of the outer side of the outer protection pipe. Vibrators are fixedly connected to the interiors of the mounting bases, the connecting base is connected to the tail of the conveying pipe of the concrete wet spraying trolley, then conveying air pressure is increased to drive concrete to be conveyed, when the concrete is blocked, vibration is generated through the vibrators, then the outer protection pipe and the inner pipe are driven to vibrate, the blocked concrete is shaken and loosened, and the concrete wet spraying trolley is prevented from being blocked. And meanwhile, water flow or air circulation can be facilitated through the exhaust holes, then the concrete attached to the interior of the inner pipe is washed, and the cleanliness of the inner pipe is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete wet spraying, in particular to a tunnel concrete wet spraying spiral pipe. Background Art

[0002] When a tunnel is under construction, a concrete wet spraying trolley is needed to spray concrete at the tunnel construction site to ensure the stability of the tunnel. However, when the concrete wet spraying trolley is spraying concrete, the pipe is too long, which can easily cause concrete blockage and affect the pouring efficiency. For this reason, we propose a tunnel concrete wet spraying spiral pipe. Utility Model Content

[0003] The utility model aims to provide a tunnel concrete wet spraying spiral pipe to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a tunnel concrete wet spraying spiral pipe, comprising an outer protective pipe, the interior of the outer protective pipe is fixedly connected to an inner pipe, the outside of the inner pipe is provided with a plurality of exhaust holes, the inner wall of the inner pipe is provided with an inner spiral, the left and right ends of the outer side of the outer protective pipe are fixedly connected to mounting seats, and the interior of the mounting seats is fixedly connected to vibrators.

[0005] The top of the outer protective tube is inserted into the interior of the connecting tube, and the top of the connecting tube is inserted with a connecting seat.

[0006] Among them, the outer sides of the insertion parts of the connecting tube and the outer protective tube are both provided with fixing hoops, the outer sides of the fixing hoops are both fixedly connected with fixing blocks, and the inner sides of the fixing blocks are both fixed by first fixing bolts.

[0007] Wherein, a sealing ring is provided at the interpenetrating portion between the connecting seat and the connecting tube.

[0008] Wherein, the outer side of the bottom of the connecting seat is threadedly connected with a second fixing bolt.

[0009] Among them, the material of the outer protective tube is seamless steel tube, and the material of the inner tube is alloy steel tube.

[0010] The utility model has at least the following beneficial effects:

[0011] First, connect the connecting seat to the tail of the delivery pipe of the concrete wet spraying trolley, and then increase the delivery wind pressure to drive the concrete to be transported. When the concrete is blocked, the vibrator will generate vibration, which will drive the outer protective pipe and the inner pipe to vibrate, and shake the blocked concrete to loosen it, ensuring the stable delivery of the concrete. At the same time, the exhaust hole can facilitate water or air circulation, and then flush the concrete attached to the inside of the inner pipe to ensure the cleanliness of the inner pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 This is an exploded view of the fixed structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the outer protective tube of the utility model;

[0015] Figure 4 This is a cross-sectional view of the inner tube of the utility model.

[0016] In the figure: 1. outer protective tube; 2. fixing hoop; 3. first fixing bolt; 4. connecting seat; 5. second fixing bolt; 6. connecting tube; 7. fixing block; 8. vibrator; 9. mounting seat; 10. sealing ring; 11. inner tube; 12. exhaust hole; 13. inner spiral. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figures 1 to 4 :

[0019] Embodiment 1

[0020] The utility model provides a technical solution: a spiral pipe for wet spraying of tunnel concrete, comprising an outer protective pipe 1, the inner part of the outer protective pipe 1 is fixedly connected with an inner pipe 11, the outer part of the inner pipe 11 is provided with a plurality of exhaust holes 12, the inner wall of the inner pipe 11 is provided with an inner spiral 13, the left and right ends of the outer side of the outer protective pipe 1 are fixedly connected with mounting seats 9, the inner part of the mounting seats 9 is fixedly connected with a vibrator 8, by installing the vibrator 8 on the outer side of the outer protective pipe 1, when concrete is blocked, the vibrator 8 generates vibration, thereby driving the outer protective pipe 1 and the inner pipe 11 to vibrate, shaking and loosening the blocked concrete, ensuring stable transportation of the concrete, and the exhaust holes 12 can facilitate water flow or air circulation, thereby flushing the concrete attached to the inner part of the inner pipe 11, ensuring the cleanliness of the inner pipe 11, and in addition, the concrete can be conveyed in a rotating manner inside the inner pipe 11 through the inner spiral 13, thereby improving the efficiency of conveying concrete.

[0021] The top of the outer protective tube 1 is inserted into the interior of the connecting tube 6, and a connecting seat 4 is inserted into the top of the connecting tube 6. The connecting tube 6 is used to connect to the connecting seat 4 and is connected to the output pipeline of the concrete wet spraying trolley through the connecting seat 4.

[0022] A fixing hoop 2 is provided on the outside of the insertion part of the connecting tube 6 and the outer protective tube 1, and a fixing block 7 is fixedly connected to the outside of the fixing hoop 2. The inner side of the fixing block 7 is fixed by a first fixing bolt 3. The connecting part of the connecting tube 6 and the outer protective tube 1 is tightened by the first fixing bolt 3 and the fixing hoop 2, so that the sealing of the pipeline can be ensured.

[0023] Embodiment 2

[0024] The interpenetrating portion between the connection seat 4 and the connection tube 6 is provided with a sealing ring 10, which is used to ensure the sealing of the connection between the connection tube 6 and the connection seat 4 to prevent the existence of gaps and cause leakage of pressure and concrete.

[0025] The outer side of the bottom of the connecting seat 4 is threadedly connected with a second fixing bolt 5, and the connecting seat 4 can be connected to the output pipeline of the trolley through the second fixing bolt 5 to ensure the stability of the connection.

[0026] The outer protective tube 1 is made of seamless steel tube, and the inner tube 11 is made of alloy steel tube. The outer protective tube 1 is made of seamless steel tube to prevent concrete leakage, and the inner tube 11 is made of alloy steel tube to ensure the strength, wear resistance and corrosion resistance of the inner tube 11 and improve the service life of the inner tube 11.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Tunnel concrete wet spraying spiral pipe, including: An outer protective tube (1) is characterized in that: the inner part of the outer protective tube (1) is fixedly connected to an inner tube (11), the outer part of the inner tube (11) is provided with a plurality of exhaust holes (12), the inner wall of the inner tube (11) is provided with an inner spiral (13), the left and right ends of the outer side of the outer protective tube (1) are fixedly connected to mounting seats (9), and the inside of the mounting seats (9) is fixedly connected to a vibrator (8).

2. The tunnel concrete wet spraying spiral pipe according to claim 1, characterized in that: The top of the outer protective tube (1) is inserted into the interior of the connecting tube (6), and the top of the connecting tube (6) is inserted with a connecting seat (4).

3. The tunnel concrete wet spraying spiral pipe according to claim 2 is characterized in that: A fixing hoop (2) is provided on the outside of the insertion portion between the connecting tube (6) and the outer protective tube (1), a fixing block (7) is fixedly connected to the outside of the fixing hoop (2), and the inside of the fixing block (7) is fixed by a first fixing bolt (3).

4. The tunnel concrete wet spraying spiral pipe according to claim 2, characterized in that: A sealing ring (10) is provided at the interpenetrating portion between the connecting seat (4) and the connecting tube (6).

5. The tunnel concrete wet spraying spiral pipe according to claim 2, characterized in that: The outer side of the bottom of the connection seat (4) is threadedly connected with a second fixing bolt (5).

6. The tunnel concrete wet spraying spiral pipe according to claim 1, characterized in that: The material of the outer protective tube (1) is a seamless steel tube, and the material of the inner tube (11) is an alloy steel tube.

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