A special equipment for spraying anticorrosive material on tunnel lining concrete

Abstract

The utility model discloses a special equipment of tunnel lining concrete anticorrosive material spraying, including the flat -bed truck of conveying spraying equipment, be provided with the equipment box on the flat -bed truck, be provided with screw rod pump in the equipment box, the power end of screw rod pump is connected with the drive motor, be connected with the output hard pipe on screw rod pump, the end of output hard pipe is connected with the shunt, be provided with the shunt box on the shunt, be provided with semicircle cover on the shunt box. The utility model discloses a screw rod pump, convenient to draw the spraying liquid in the liquid storage tank and convey to the shunt, through setting up big steel pipe and small steel pipe, it is convenient to spray on the inner wall of tunnel through the spray head stably, increase the uniformity of anticorrosive material spraying, through setting up pressure relief pipe and pressure relief valve at the other end of shunt, it is convenient to carry out pressure relief to the internal pressure of machine after shutdown, make liquid backflow to the liquid storage tank, reduce waste, and then increase the efficiency of tunnel lining concrete anticorrosive material spraying.

Description

Technical Field

[0001] This utility model relates to the field of tunnel lining spraying technology, specifically to a special equipment for spraying anti-corrosion materials onto tunnel lining concrete. Background Technology

[0002] Concrete lining is an engineering technique that forms a permanent support layer for tunnels and chambers by casting or assembling concrete components. Its main functions include bearing the pressure of surrounding rock, maintaining structural stability, and preventing seepage. There are four types of concrete lining: monolithic cast-in-place lining, prefabricated lining, shotcrete and anchor support, and composite lining. Among these, monolithic concrete lining is the most widely used due to its strong adaptability. In terms of material specifications, the concrete strength grade of the main structure should not be lower than C20, and special areas require the use of moisture-proof or steel fiber reinforced concrete to enhance toughness. Construction technology covers key processes such as segmented casting, formwork installation, and rebar binding. In complex geological sections, consolidation grouting and other techniques are needed to ensure quality.

[0003] In tunnel engineering, concrete linings are in constant contact with groundwater, chemicals, or salt, making them prone to corrosion and cracking, which affects structural safety. Manual painting is inefficient, dangerous at heights, and results in uneven coating. Ordinary spray guns in general spraying equipment are difficult to adapt to the curved inner walls of tunnels, easily leading to missed areas or material waste. To address this, we have designed a special equipment for spraying anti-corrosion materials onto tunnel lining concrete. The arc-shaped spraying structure is specifically designed for spraying the inner walls of tunnels, increasing the efficiency of tunnel spraying. Utility Model Content

[0004] The purpose of this invention is to provide a special equipment for spraying anti-corrosion materials onto tunnel lining concrete, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special equipment for spraying anti-corrosion materials onto tunnel lining concrete, comprising a flatbed truck for conveying the spraying equipment, an equipment box on the flatbed truck, a screw pump inside the equipment box, a drive motor connected to the power end of the screw pump, an output rigid pipe connected to the screw pump, a distributor connected to the end of the output rigid pipe, a distributor box on the distributor, a semi-circular cover on the distributor box, a support ring on the outer ring surface of the semi-circular cover, a pressure relief pipe at the other end of the distributor, a pressure relief valve on the pressure relief pipe, a liquid storage tank connected to the end face of the pressure relief pipe, a large steel pipe on the distributor, a small steel pipe connected to the large steel pipe, and a nozzle at the top end of the small steel pipe.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Preferably, the drive motor is fixedly connected to the side of the equipment box via a motor cover, and the side of the equipment box has a circular hole that matches the end face of the output shaft of the drive motor. By setting the drive motor, it is convenient to provide output power to the screw pump.

[0008] Preferably, the flow divider box is fixedly connected to the surface of the equipment box, and the output rigid pipe passes through the equipment box and the flow divider box in sequence and is connected to the flow divider end face inside the flow divider box. By setting the output rigid pipe, it is convenient to transport the fluid inside the screw pump.

[0009] Preferably, the pressure relief pipe passes through the distribution box and the equipment box in sequence and extends into the interior of the liquid storage tank. The side of the equipment box is provided with a square hole that matches the side of the liquid storage tank and is fixedly connected to the liquid storage tank. By setting up the pressure relief pipe, when the spraying equipment stops, the pressure relief valve can easily release the pressure of the liquid inside the pipe and allow the liquid to flow back into the liquid storage tank.

[0010] Preferably, the side of the liquid storage tank is provided with a transparent tempered glass plate, and the liquid storage tank is provided with a feeding funnel. By providing a tempered glass plate on the side of the liquid storage tank, it is convenient for the spraying personnel to pour the stirred spraying liquid into the liquid storage tank.

[0011] Preferably, the upper semicircle of the distribution box is provided with six large steel pipes at equal intervals, and the semicircular cover is fixedly connected to the distribution box. The six large steel pipes pass through the semicircular cover at equal intervals in a fan shape and are fixedly connected to the semicircular cover. By setting multiple large steel pipes, it is convenient to divide the liquid inside the distributor, so that the spraying fluid enters each pipe respectively.

[0012] Preferably, the number of small steel pipes is the same as that of large steel pipes, and the bottom end of the small steel pipe is threaded to the top end of the large steel pipe. By setting the small steel pipes, it is convenient to transport the coating material inside the large steel pipe.

[0013] Preferably, a locking sealing sleeve is provided at the connection between the small steel pipe and the large steel pipe, and the locking sealing sleeve is fitted onto the small steel pipe and threadedly connected to the end of the large steel pipe. By providing a detachable large steel pipe and small steel pipe, it is convenient to inspect and replace the small steel pipe or the spray head, and it is also convenient to disassemble the spraying part of the spraying equipment for easy transportation or assembly.

[0014] Preferably, the support ring is semi-circular, and both ends of the support ring are fixedly connected to the semi-circular cover by locking bolts. The support ring has a circular hole that matches the end of the small steel pipe. By setting the support ring, it is easy to support the small steel pipe, thereby increasing the output stability of the small steel pipe, and also making it easy to disassemble and assemble the small steel pipe and the support ring.

[0015] Preferably, the liquid input end of the screw pump is connected to a suction pipe, which passes through the liquid storage tank and extends into the interior of the liquid storage tank. The surface of the suction pipe is fixedly connected to the liquid storage tank. By setting the suction pipe, it is convenient to draw the liquid inside the liquid storage tank and allow the spraying liquid to enter the screw pump.

[0016] Beneficial effects

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] This invention utilizes a screw pump to easily extract the spraying liquid from the storage tank and deliver it to a distributor. The distributor then diverts the liquid into various pipelines. The use of large and small steel pipes increases the stability of liquid delivery and ensures stable spraying onto the tunnel's inner wall through the nozzles, enhancing the uniformity of the anti-corrosion coating. A pressure relief pipe and valve at the other end of the distributor facilitate pressure relief after shutdown, allowing the liquid to flow back into the delivery tank, reducing waste and increasing the efficiency of anti-corrosion coating on the tunnel lining concrete. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the orthographic section of the present invention;

[0020] Figure 2 This is a front view structural diagram of the present invention;

[0021] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Flatbed truck; 2. Equipment box; 3. Screw pump; 4. Drive motor; 5. Output rigid pipe; 6. Diverter; 7. Diverter box; 8. Semi-circular cover; 9. Support ring; 10. Pressure relief pipe; 11. Pressure relief valve; 12. Liquid storage tank; 13. Large steel pipe; 14. Small steel pipe; 15. Nozzle; 16. Locking sealing sleeve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3This utility model provides a technical solution: a special equipment for spraying anti-corrosion material onto tunnel lining concrete, including a flatbed truck 1 for conveying the spraying equipment, an equipment box 2 on the flatbed truck 1, a screw pump 3 inside the equipment box 2, a drive motor 4 connected to the power end of the screw pump 3, the drive motor 4 being fixedly connected to the side of the equipment box 2 through a motor cover, and a circular hole adapted to the output shaft end face of the drive motor 4 being opened on the side of the equipment box 2. By setting the drive motor 4, it is convenient to provide output power to the screw pump 3.

[0025] The screw pump 3 is connected to an output rigid pipe 5, and the end of the output rigid pipe 5 is connected to a flow divider 6. A flow divider box 7 is provided on the flow divider 6. The flow divider box 7 is fixedly connected to the surface of the equipment box 2. The output rigid pipe 5 passes through the equipment box 2 and the flow divider box 7 in sequence and is connected to the end face of the flow divider 6 inside the flow divider box 7. By setting the output rigid pipe 5, it is convenient to transport the fluid inside the screw pump 3.

[0026] The distribution box 7 is provided with a semi-circular cover 8, and a support ring 9 is provided on the outer ring surface of the semi-circular cover 8. The support ring 9 is semi-circular, and both ends of the support ring 9 are fixedly connected to the semi-circular cover 8 by locking bolts. The support ring 9 has a circular hole that matches the end of the small steel pipe 14. By providing the support ring 9, it is easy to support the small steel pipe 14, thereby increasing the output stability of the small steel pipe 14, and also making it easy to disassemble and assemble the small steel pipe 14 and the support ring 9.

[0027] The other end of the distributor 6 is provided with a pressure relief pipe 10. The pressure relief pipe 10 passes through the distributor box 7 and the equipment box 2 in sequence and extends into the interior of the liquid storage tank 12. The side of the equipment box 2 is provided with a square hole that matches the side of the liquid storage tank 12 and is fixedly connected to the liquid storage tank 12. By providing the pressure relief pipe 10, when the spraying equipment stops, the pressure relief valve 11 can release the pressure of the liquid inside the pipe and allow the liquid to flow back into the liquid storage tank 12.

[0028] The pressure relief pipe 10 is equipped with a pressure relief valve 11, and the end face of the pressure relief pipe 10 is connected to a liquid storage tank 12. The side of the liquid storage tank 12 is provided with a transparent tempered glass plate, and the liquid storage tank 12 is provided with a feeding funnel. By providing a tempered glass plate on the side of the liquid storage tank 12, it is convenient for the spraying personnel to pour the stirred spraying liquid into the liquid storage tank 12.

[0029] Furthermore, the liquid input end of the screw pump 3 is connected to a suction pipe, which penetrates the liquid storage tank 12 and extends into the interior of the liquid storage tank 12. The surface of the suction pipe is fixedly connected to the liquid storage tank 12. By setting the suction pipe, it is convenient to extract the liquid inside the liquid storage tank 12, so that the spraying liquid enters the screw pump 3.

[0030] The distributor 6 is equipped with a large steel pipe 13. The distributor box 7 has six large steel pipes 13 arranged at equal intervals on the upper semicircle. The semicircular cover 8 is fixedly connected to the distributor box 7. The six large steel pipes 13 pass through the semicircular cover 8 at equal intervals in a fan shape and are fixedly connected to the semicircular cover 8. By setting multiple large steel pipes 13, it is convenient to divide the liquid inside the distributor 6, so that the spraying fluid enters each pipe respectively.

[0031] Small steel pipes 14 are connected to the large steel pipe 13. The number of small steel pipes 14 is the same as that of the large steel pipe 13, and the bottom end of the small steel pipe 14 is threaded to the top end of the large steel pipe 13. By setting the small steel pipes 14, it is convenient to transport the spraying material inside the large steel pipe 13.

[0032] The top end of the small steel pipe 14 is provided with a nozzle 15. A locking sealing sleeve 16 is provided at the connection between the small steel pipe 14 and the large steel pipe 13. The locking sealing sleeve 16 is sleeved on the small steel pipe 14 and threadedly connected to the end of the large steel pipe 13. By setting the large steel pipe 13 and the small steel pipe 14 to be detachable, it is convenient to inspect and replace the small steel pipe 14 or the nozzle 15. It is also convenient to disassemble the spraying part of the spraying equipment for easy transportation or assembly.

[0033] In this embodiment, the screw pump 3 facilitates the extraction of spraying liquid from the storage tank 12 and its delivery to the distributor 6. The distributor 6 then distributes the liquid into various pipelines. The large steel pipe 13 and the small steel pipe 14 enhance the stability of the liquid delivery and ensure stable spraying onto the inner wall of the tunnel through the nozzle 15, thereby increasing the uniformity of the anti-corrosion coating. The pressure relief pipe 10 and the pressure relief valve 11 at the other end of the distributor 6 facilitate the release of internal pressure after the machine is stopped, allowing the liquid to flow back into the delivery tank, reducing waste, and thus increasing the efficiency of spraying anti-corrosion materials onto the tunnel lining concrete.

[0034] During operation, the flatbed truck 1 is pulled by an engineering tractor to move in a straight line inside the tunnel. At the same time, the mixed spraying fluid or liquid is poured into the storage tank 12. The drive motor 4 is started, which drives the screw pump 3 to move. The screw pump 3 rotates and spirally draws the liquid from the storage tank 12, and delivers it to the distributor 6 through the output hard pipe 5. The distributor 6 then delivers the liquid to different pipes, and sprays it out through the nozzles 15 at the top of the pipes to spray the arc-shaped wall inside the tunnel. This reduces the tediousness of workers climbing up and down scaffolds. At the same time, when the machine is ready to stop, the pressure relief valve 11 on the pressure relief pipe 10 is opened to release the pressure of the liquid inside the distributor 6 and the pipes, allowing it to flow back into the storage tank 12 for subsequent use. When there is no liquid in the pipes, the machine is turned off, thereby increasing the efficiency of spraying anti-corrosion materials onto the tunnel lining concrete.

[0035] The mechanisms, components, and parts in this utility model that are not specifically described are all existing structures that already exist in the prior art and can be purchased directly from the market.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special equipment for spraying anti-corrosion material onto tunnel lining concrete, characterized in that: The system includes a flatbed truck (1) for conveying spraying equipment, a box (2) for the flatbed truck (1), a screw pump (3) for the box (2), a drive motor (4) for the power end of the screw pump (3), an output hard pipe (5) for the screw pump (3), a distributor (6) for the end of the output hard pipe (5), a distributor box (7) for the distributor box (6), and a semi-circular cover for the distributor box (7). 8) A support ring (9) is provided on the outer ring surface of the semicircular cover (8). A pressure relief pipe (10) is provided at the other end of the diverter (6). A pressure relief valve (11) is provided on the pressure relief pipe (10). A liquid storage tank (12) is connected to the end face of the pressure relief pipe (10). A large steel pipe (13) is provided on the diverter (6). A small steel pipe (14) is connected to the large steel pipe (13). A nozzle (15) is provided at the top of the small steel pipe (14).

2. The special equipment for spraying anti-corrosion material onto tunnel lining concrete according to claim 1, characterized in that: The drive motor (4) is fixedly connected to the side of the equipment box (2) through the motor cover, and the side of the equipment box (2) is provided with a round hole that matches the output shaft end face of the drive motor (4).

3. The special equipment for spraying anti-corrosion material onto tunnel lining concrete according to claim 1, characterized in that: The splitter box (7) is fixedly connected to the surface of the equipment box (2), and the output hard tube (5) passes through the equipment box (2) and the splitter box (7) in sequence and is connected to the end face of the splitter (6) inside the splitter box (7).

4. The special equipment for spraying anti-corrosion material onto tunnel lining concrete according to claim 1, characterized in that: The pressure relief pipe (10) passes through the diversion box (7) and the equipment box (2) in sequence and extends into the interior of the liquid storage tank (12). The side of the equipment box (2) is provided with a square hole that matches the side of the liquid storage tank (12) and is fixedly connected to the liquid storage tank (12).

5. The special equipment for spraying anti-corrosion material onto tunnel lining concrete according to claim 1, characterized in that: The side of the liquid storage tank (12) is provided with a transparent tempered glass plate, and the liquid storage tank (12) is provided with a feed funnel.

6. The special equipment for spraying anti-corrosion material onto tunnel lining concrete according to claim 1, characterized in that: The upper semicircle of the diversion box (7) is provided with six large steel pipes (13) at equal intervals, and the semicircular cover (8) is fixedly connected to the diversion box (7). The six large steel pipes (13) pass through the semicircular cover (8) at equal intervals in a fan shape and are fixedly connected to the semicircular cover (8).

7. The special equipment for spraying anti-corrosion material onto tunnel lining concrete according to claim 1, characterized in that: The number of small steel pipes (14) is the same as that of large steel pipes (13), and the bottom end of the small steel pipes (14) is threadedly connected to the top end of the large steel pipes (13).

8. The special equipment for spraying anti-corrosion material onto tunnel lining concrete according to claim 1, characterized in that: A locking sealing sleeve (16) is provided at the connection between the small steel pipe (14) and the large steel pipe (13), and the locking sealing sleeve (16) is sleeved on the small steel pipe (14) and threadedly connected to the end of the large steel pipe (13).

9. A special equipment for spraying anti-corrosion material onto tunnel lining concrete according to claim 1, characterized in that: The support ring (9) is semi-circular, and both ends of the support ring (9) are fixedly connected to the semi-circular cover (8) by locking bolts. The support ring (9) has a circular hole that matches the end of the small steel pipe (14).

10. A special equipment for spraying anti-corrosion material onto tunnel lining concrete according to claim 1, characterized in that: The screw pump (3) has a suction pipe connected to its liquid input end. The suction pipe passes through the liquid storage tank (12) and extends into the interior of the liquid storage tank (12). The surface of the suction pipe is fixedly connected to the liquid storage tank (12).

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