A chain cutter type underground continuous wall forming machine injection material structure

Abstract

The utility model relates to the technical field of injection material structure, concretely relates to a chain cutter type underground continuous wall wall forming machine injection material structure, including wall forming machine cutter box, both sides of wall forming machine cutter box lower extreme are all fixedly connected with first injection material pipe, and the fixed intercommunication of two first injection material pipes has second injection material pipe, and second injection material pipe is located in wall forming machine cutter box, the inner wall fixedly connected with rotating shaft in first injection material pipe middle part, the middle part rotationally connected with first baffle and second baffle of rotating shaft, one side fixedly connected with first elastic sheet of first baffle, and one end of first elastic sheet is fixedly connected with second baffle, and first baffle and second baffle are semicircular plate, and the outer wall of first baffle and second baffle is pasted with the inner wall of first injection material pipe. Compared with the prior art, the application avoids that the gravel in the excavation groove enters the first injection material pipe when the wall forming machine cutter box stops digging, and the first injection material pipe is blocked to affect the flow of subsequent liquid injection.

Description

Technical Field

[0001] This utility model relates to the field of injection structure technology, and in particular to an injection structure for a chain knife type underground continuous wall forming machine. Background Technology

[0002] Diaphragm walls are foundation engineering projects where a trenching machine excavates a long, narrow trench along the perimeter of a deep excavation project, using mud slurry for wall support. After cleaning the trench, a reinforcing cage is placed inside, and underwater concrete is poured using a tremie pipe method to form a unit trench segment. This process is repeated segment by segment to build a continuous reinforced concrete wall underground, serving as a water-cutting, seepage-proof, load-bearing, and water-retaining structure. The chain cutter diaphragm wall forming machine (TRD method equipment) is a specialized construction equipment used to construct diaphragm walls of uniform thickness in cement soil. It consists of two parts: the main diaphragm wall machine (including a cutting device) and a mixing and slurry-making device. The main machine is vertically inserted into the stratum through a chainsaw-type cutter box. When advancing laterally, the chain drives the cutter to rotate up and down to cut the soil. Cutting fluid and air are injected simultaneously as the chain cutter rotates and cuts the soil layer.

[0003] In the prior art, Chinese patent CN213114650U discloses a concrete pouring frame for diaphragm wall construction. This frame uses multiple hydraulic push rods to raise and lower the support legs, causing the guide pipe to move up and down. This movement accelerates the flow of concrete within the guide pipe, shortens the pouring time, and reduces labor and machinery input, avoiding secondary pouring that could affect construction quality. However, in practical applications, the grouting structure of the chain-knife type diaphragm wall forming machine sprays cutting fluid and air onto the earthen wall during excavation. The toolbox is used in multiple connected sections; when connecting the tools, the forming machine stops operating. When stopped, the gravel in the excavation trench easily enters the discharge port, affecting the grouting mechanism and thus impacting the wall forming effect. Therefore, we disclose a grouting structure for a chain-knife type diaphragm wall forming machine. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a material injection structure for a chain-knife type underground continuous wall forming machine, so as to solve the problem that crushed stones in the excavation trench can easily enter the discharge port and affect the material discharge of the injection mechanism.

[0005] Based on the above objectives, this utility model provides a material injection structure for a chain-knife type underground continuous wall forming machine, including a cutting tool box for the forming machine. First injection pipes are fixedly connected to both sides of the lower end of the cutting tool box. A second injection pipe is fixedly connected between the two first injection pipes. The second injection pipe is located inside the cutting tool box. A rotating shaft is fixedly connected to the inner wall of the middle portion of the first injection pipe. A first baffle and a second baffle are rotatably connected to the middle portion of the rotating shaft. A first spring is fixedly connected to one side of the first baffle. One end of the first spring is fixedly connected to the second baffle. Both the first and second baffles are semi-circular plates, and the outer walls of the first and second baffles are in contact with the inner wall of the first injection pipe.

[0006] Preferably, the second injection tube and the two first injection tubes form a Y shape, the first injection tube is inclined relative to the horizontal plane, and one end of the first injection tube extends to the outer wall of the tool box of the wall forming machine.

[0007] Preferably, a barrier is fixedly connected to the inner wall of one end of the first injection pipe, and the barrier is close to the outer wall of the tool box of the wall forming machine.

[0008] Preferably, a plurality of annularly distributed fixing blocks are fixedly connected to the inner wall of the first injection tube. A second spring is fixedly connected to one end of each fixing block, and a buffer block is fixedly connected to one end of each second spring. The buffer block is in contact with one side of the first baffle and the second baffle, and the fixing block is located between the first baffle and the second injection tube.

[0009] Preferably, two first air pipes are fixedly connected to both sides of the first injection tube. The two first air pipes are located on both sides of the first baffle and the second baffle, respectively. One end of the first air pipe is fixedly connected to a second air pipe, one end of the second air pipe is fixedly connected to a third air pipe, one end of the third air pipe is fixedly connected to a fourth air pipe, and one end of the fourth air pipe is fixedly connected to a fifth air pipe. The third air pipe is a C-shaped pipe, and both ends of the third air pipe are fixedly connected to the second air pipe. The third air pipe and the second air pipe are both fixedly connected to the outer wall of the first injection tube.

[0010] Preferably, a spring is fixedly connected to one end of the second air tube, and a sealing barrel is fixedly connected to one end of the spring. The sealing barrel is slidably connected to the inner cavity of the second air tube, and the outer wall of the sealing barrel completely covers the connection between the first air tube and the second air tube. The first air tube is inclined relative to the horizontal plane.

[0011] Preferably, the spring and the sealing barrel are located between the barrier fence and the first baffle.

[0012] The beneficial effects of this utility model are as follows: The position of the first injection pipe is fixed by the tool box of the wall forming machine. The injection fluid is input into the first injection pipe through the second injection pipe. The position of the rotating shaft is fixed by the first injection pipe, so that the rotating shaft restricts the rotation position of the first baffle and the second baffle. The first spring plate restricts the position of the first baffle and the second baffle. Thus, when the injection fluid is not flowing, the first baffle and the second baffle rotate under the action of the first spring plate to a position that fits against the inner wall of the first injection pipe. This prevents the gravel in the excavation trench from entering the first injection pipe when the tool box of the wall forming machine stops excavating, thus blocking the first injection pipe and affecting the flow of subsequent injection fluid.

[0013] The gas blown out through the first air pipe can help the liquid flowing out of the first injection pipe to flip the first baffle and the second baffle, reducing the resistance of the first baffle and the second baffle to the liquid. When there is no gas flow in the second air pipe, the sealing barrel covers the upper end of the first air pipe under the action of the spring, preventing gravel from entering the second air pipe and affecting the flow of gas afterwards. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a three-dimensional structural diagram showing the connection between the first injection pipe, the second injection pipe, and the barrier fence of this utility model.

[0017] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the second trachea of ​​this utility model;

[0018] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the first injection tube of this utility model.

[0019] The diagram is marked as follows:

[0020] 1. Tool box of the wall forming machine; 2. First injection pipe; 3. Second injection pipe; 4. Barrier fence; 5. Rotating shaft; 6. First baffle; 7. Second baffle; 8. First spring; 9. Fixing block; 10. Second spring; 11. Buffer block; 12. First air pipe; 13. Second air pipe; 14. Spring; 15. Sealing barrel; 16. Third air pipe; 17. Fourth air pipe; 18. Fifth air pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figures 1-4As shown, a chain-knife type diaphragm wall forming machine injection structure includes a forming machine tool box 1. First injection pipes 2 are fixedly connected to both sides of the lower end of the tool box 1. A second injection pipe 3 is fixedly connected between the two first injection pipes 2. The second injection pipe 3 is located inside the tool box 1. A rotating shaft 5 is fixedly connected to the inner wall of the middle part of the first injection pipe 2. A first baffle 6 and a second baffle 7 are rotatably connected to the middle of the rotating shaft 5. A first spring 8 is fixedly connected to one side of the first baffle 6. One end of the first spring 8 is fixedly connected to the second baffle 7. Both the first baffle 6 and the second baffle 7 are semi-circular plates. The outer walls of the first baffle 6 and the second baffle 7 are in contact with the inner wall of the first injection pipe 2. The second injection pipe 3 and the two first injection pipes 2 form a Y-shape. The material pipe 2 is inclined relative to the horizontal plane. One end of the first material pipe 2 extends to the outer wall of the tool box 1 of the wall forming machine. A blocking fence 4 is fixedly connected to the inner wall of one end of the first material pipe 2. The blocking fence 4 is close to the outer wall of the tool box 1 of the wall forming machine. Several ring-shaped fixed blocks 9 are fixedly connected to the inner wall of the first material pipe 2. A second spring 10 is fixedly connected to one end of the fixed block 9. A buffer block 11 is fixedly connected to one end of the second spring 10. The buffer block 11 is attached to one side of the first baffle 6 and the second baffle 7. The fixed block 9 is located between the first baffle 6 and the second material pipe 3. In use, the first material pipe 2 is fixedly connected to both sides of the lower end of the tool box 1 of the wall forming machine, so that the tool box 1 of the wall forming machine fixes the position of the first material pipe 2. A second injection pipe 3 is fixedly connected between the injection pipes 2 and the first injection pipe 2. The second injection pipe 3 is located inside the tool box 1 of the wall forming machine, allowing the injection fluid to be injected into the first injection pipe 2 through the second injection pipe 3. A rotating shaft 5 is fixedly connected to the inner wall of the middle part of the first injection pipe 2. A first baffle 6 and a second baffle 7 are rotatably connected to the middle part of the rotating shaft 5. A first spring 8 is fixedly connected to one side of the first baffle 6, and one end of the first spring 8 is fixedly connected to the second baffle 7. Both the first baffle 6 and the second baffle 7 are semi-circular plates. The outer walls of the first baffle 6 and the second baffle 7 are in contact with the inner wall of the first injection pipe 2, so that the first injection pipe 2 fixes the position of the rotating shaft 5, so that the rotating shaft 5 restricts the rotation position of the first baffle 6 and the second baffle 7, and so that the first spring 8 restricts the first baffle 6. The positions of the first baffle 6 and the second baffle 7 are such that when the injected fluid is not flowing, the first baffle 6 and the second baffle 7 rotate under the action of the first spring 8 to a position where they fit against the inner wall of the first injection pipe 2. This prevents gravel from entering the first injection pipe 2 and clogging it when the wall forming machine toolbox 1 stops digging, thus affecting the flow of subsequent injected fluid. The second injection pipe 3 and the two first injection pipes 2 form a Y-shape. The first injection pipe 2 is inclined relative to the horizontal plane, and one end of the first injection pipe 2 extends to the outer wall of the wall forming machine toolbox 1, facilitating the flow of liquid in the second injection pipe 3 out of the wall forming machine toolbox 1 through the first injection pipe 2. A blocking fence 4 is fixedly connected to the inner wall of one end of the first injection pipe 2, and the blocking fence 4 is close to the outer wall of the wall forming machine toolbox 1.Larger stones outside the first injection pipe 2 are blocked by the barrier 4, preventing them from entering. Several annularly spaced fixing blocks 9 are fixedly connected to the inner wall of the first injection pipe 2. A second spring 10 is fixedly connected to one end of each fixing block 9, and a buffer block 11 is fixedly connected to one end of each spring 10. The buffer block 11 is in contact with one side of the first baffle 6 and the second baffle 7. The fixing block 9 is located between the first baffle 6 and the second injection pipe 2, thus fixing the position of the fixing block 9 in the first injection pipe 2. The fixing block 9, through the second spring 10, fixes the position of the buffer block 11. This allows the first baffle 6 and the second baffle 7 to rotate under the action of the first spring 8, but their rotation is restricted by the buffer block 11 when the first injection pipe 2 is in contact, preventing excessive rotation of the first baffle 6 and the second baffle 7. The second spring 10 also reduces the impact force during the rotation of the first baffle 6 and the second baffle 7, improving the service life of the buffer block 11 and the fixing block 9.

[0024] As a preferred embodiment of this example, Figure 2 and Figure 3As shown, two first air pipes 12 are fixedly connected to both sides of the first injection pipe 2. The two first air pipes 12 are located on both sides of the first baffle 6 and the second baffle 7, respectively. One end of the first air pipe 12 is fixedly connected to a second air pipe 13, one end of the second air pipe 13 is fixedly connected to a third air pipe 16, one end of the third air pipe 16 is fixedly connected to a fourth air pipe 17, and one end of the fourth air pipe 17 is fixedly connected to a fifth air pipe 18. The third air pipe 16 is a C-shaped pipe, and both ends of the third air pipe 16 are fixedly connected to the second air pipe 13. Both the third air pipe 16 and the second air pipe 13 are fixedly connected to the outer wall of the first injection pipe 2. One end of the second air pipe 13 is fixedly connected to a spring 14, and one end of the spring 14 is fixedly connected to a sealing barrel 15. The sealing barrel 15 is slidably connected to... The outer wall of the sealing barrel 15 completely covers the connection between the first air pipe 12 and the second air pipe 13 within the inner cavity of the second air pipe 13. The first air pipe 12 is inclined relative to the horizontal plane. The spring 14 and the sealing barrel 15 are located between the blocking grid 4 and the first baffle 6. Two first air pipes 12 are fixedly connected to both sides of the first injection pipe 2. The two first air pipes 12 are located on both sides of the first baffle 6 and the second baffle 7, respectively, so that the gas blown out of the first air pipe 12 can assist the liquid flowing out of the first injection pipe 2 to flip the first baffle 6 and the second baffle 7, reducing the resistance of the first baffle 6 and the second baffle 7 to the liquid. The second air pipe 13 is fixedly connected to one end of the first air pipe 12, and the third air pipe 16 is fixedly connected to one end of the second air pipe 13. One end of pipe 16 is fixedly connected to a fourth air pipe 17, and one end of the fourth air pipe 17 is fixedly connected to a fifth air pipe 18, allowing air to enter the fourth air pipe 17 through the fifth air pipe 18. Then, the gas in the fourth air pipe 17 enters the second air pipe 13 through the third air pipe 16, and then flows from the second air pipe 13 into the first air pipe 12 before being blown into the first injection pipe 2. The third air pipe 16 is a C-shaped pipe, and both ends of the third air pipe 16 are fixedly connected to the second air pipe 13, ensuring that both ends of the second air pipe 13 contain air. A spring 14 is fixedly connected to one end of the second air pipe 13, and a sealing barrel 15 is fixedly connected to one end of the spring 14. The sealing barrel 15 is slidably connected to the inner cavity of the second air pipe 13, and the outer wall of the sealing barrel 15 completely covers the first air pipe 12. At the connection between the trachea 12 and the second trachea 13, when there is no gas flow in the second trachea 13, the sealing container 15, under the action of the spring 14, covers the upper end of the first trachea 12, preventing gravel from entering the second trachea 13 and affecting the subsequent gas flow. When there is gas flow in the second trachea 13, the gas pushes the sealing container 15 to compress the spring 14, causing the sealing container 15 to move away from the upper end of the first trachea 12. Gas can then be blown into the first trachea 12. Because the first trachea 12 is inclined relative to the horizontal plane, the gas blown out of the first trachea 12 will blow towards the first baffle 6 and the second baffle 7, helping the liquid to compress the first baffle 6 and the second baffle 7, thus reducing the relative distance between the first baffle 6 and the second baffle 7 and decreasing the resistance to liquid flow.The spring 14 and the sealing barrel 15 are positioned between the barrier fence 4 and the first baffle 6 to prevent large stones from entering the first air tube 12.

[0025] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0026] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A material injection structure for a chain-knife type diaphragm wall forming machine, comprising a cutting tool box (1) of the forming machine, characterized in that, The lower end of the tool box (1) of the wall forming machine is fixedly connected to both sides of the first injection pipe (2), and the two first injection pipes (2) are fixedly connected to the second injection pipe (3). The second injection pipe (3) is located inside the tool box (1) of the wall forming machine. The inner wall of the middle part of the first injection pipe (2) is fixedly connected to the rotating shaft (5). The middle part of the rotating shaft (5) is rotatably connected to the first baffle (6) and the second baffle (7). The first baffle (6) is fixedly connected to one side of the first baffle (6). One end of the first baffle (8) is fixedly connected to the second baffle (7). The first baffle (6) and the second baffle (7) are both semi-circular plates. The outer walls of the first baffle (6) and the second baffle (7) are in contact with the inner wall of the first injection pipe (2).

2. The material injection structure of the chain-knife type diaphragm wall forming machine according to claim 1, characterized in that, The second injection pipe (3) and the two first injection pipes (2) form a Y shape. The first injection pipe (2) is inclined relative to the horizontal plane, and one end of the first injection pipe (2) extends to the outer wall of the wall forming machine tool box (1).

3. The material injection structure of the chain-knife type diaphragm wall forming machine according to claim 1, characterized in that, A barrier fence (4) is fixedly connected to the inner wall of one end of the first injection pipe (2), and the barrier fence (4) is close to the outer wall of the tool box (1) of the wall forming machine.

4. The material injection structure of the chain-knife type diaphragm wall forming machine according to claim 1, characterized in that, The inner wall of the first injection tube (2) is fixedly connected with a number of annularly distributed fixed blocks (9). One end of the fixed block (9) is fixedly connected with a second spring (10). One end of the second spring (10) is fixedly connected with a buffer block (11). The buffer block (11) is attached to one side of the first baffle (6) and the second baffle (7). The fixed block (9) is located between the first baffle (6) and the second injection tube (3).

5. The material injection structure of the chain-knife type diaphragm wall forming machine according to claim 3, characterized in that, The first injection tube (2) is fixedly connected to two first air pipes (12) on both sides. The two first air pipes (12) are located on both sides of the first baffle (6) and the second baffle (7), respectively. One end of the first air pipe (12) is fixedly connected to a second air pipe (13), one end of the second air pipe (13) is fixedly connected to a third air pipe (16), one end of the third air pipe (16) is fixedly connected to a fourth air pipe (17), one end of the fourth air pipe (17) is fixedly connected to a fifth air pipe (18), the third air pipe (16) is a C-shaped pipe, and both ends of the third air pipe (16) are fixedly connected to the second air pipe (13). The third air pipe (16) and the second air pipe (13) are both fixedly connected to the outer wall of the first injection tube (2).

6. The material injection structure of the chain-knife type diaphragm wall forming machine according to claim 5, characterized in that, A spring (14) is fixedly connected to one end of the second air tube (13), and a sealing barrel (15) is fixedly connected to one end of the spring (14). The sealing barrel (15) is slidably connected to the inner cavity of the second air tube (13). The outer wall of the sealing barrel (15) completely covers the connection between the first air tube (12) and the second air tube (13). The first air tube (12) is inclined relative to the horizontal plane.

7. The material injection structure of the chain-knife type diaphragm wall forming machine according to claim 6, characterized in that, The spring (14) and the sealing barrel (15) are located between the barrier fence (4) and the first baffle (6).

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