A combined tunnel flushing device based on a railcar

Abstract

A combined tunnel flushing device based on a railcar belongs to the field of rail transit and railway tunnel cleaning equipment. It includes a railcar equipped with a water tank and a spray system. A water pump is located between the spray system and the water tank. The water pump inlet is connected to the water tank, and the water pump outlet is connected to the spray system. The spray system has multiple nozzles. The railcar also includes a cleaning assembly for removing dust from the tunnel ceiling, including a ball seat fixed to the railcar. A ball head is movably mounted within the ball seat, and the ball head has a nozzle. A sealing plate is fixed to the opening end of the nozzle, forming a diversion chamber connected to the water pump outlet. An air jet pipe is located at the center of the nozzle. One end of the air jet pipe is connected to an air pump, and the other end passes through the diversion chamber and the sealing plate. Multiple water spray holes connected to the diversion chamber are opened on the sealing plate, distributed circumferentially along the air jet pipe. This device can clean the tunnel ceiling without damaging equipment installed on the tunnel ceiling, thus improving the cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of rail transit and railway tunnel cleaning equipment, specifically a combined tunnel flushing device based on a railcar. Background Technology

[0002] With the continuous development of infrastructure construction, tunnels, as important transportation facilities, are increasing in number and frequency of use. To ensure the safety and normal operation of tunnels, cleaning and maintenance are crucial. The long-term accumulation of dust, dirt, and debris inside tunnels not only affects their aesthetics but can also pose safety hazards, such as reducing tunnel lighting and impairing driver visibility.

[0003] Most existing tunnel cleaning equipment suffers from problems such as limited functionality and unsatisfactory cleaning results. For example, some tunnel cleaning equipment can only rinse the inner walls of the tunnel, but cannot effectively clean the dust on the tunnel ceiling; other equipment will rinse the tunnel ceiling, but the tunnel ceiling is generally equipped with ventilation ducts, lighting fixtures, fire alarm devices and communication cables, etc., and rinsing these devices will cause damage and affect the normal operation of the tunnel. Utility Model Content

[0004] To address the problem that existing technologies can damage equipment installed on the tunnel roof when flushing it, this invention provides a combined tunnel flushing device based on a railcar. This device can clean the tunnel roof without damaging the equipment installed on it, thus improving the cleaning effect.

[0005] To achieve the above objectives, the specific solution adopted by this utility model is as follows: a combined tunnel flushing device based on a railcar, comprising a railcar and a water tank and a spraying component mounted on the railcar. A water pump is provided between the spraying component and the water tank, with the water pump inlet connected to the water tank and the water pump outlet connected to the spraying component. The spraying component is parallel to the tunnel cross-section and has multiple nozzles spaced apart on it. A cleaning assembly for removing dust from the tunnel ceiling is provided on the railcar, and the cleaning assembly includes a ball seat fixedly mounted on the railcar. A ball head is movably installed inside the ball seat, with the top of the ball head extending out of the ball seat. The ball head has a nozzle with an opening facing away from the ball head, and a sealing plate is fixedly installed at the opening end of the nozzle to seal the opening. The sealing plate and the nozzle enclose a diversion chamber that is connected to the outlet of the water pump. An air jet pipe is installed at the center of the nozzle. One end of the air jet pipe is connected to an air pump installed on the railcar, and the other end of the air jet pipe passes through the diversion chamber and the sealing plate in sequence. The sealing plate has multiple water spray holes that are connected to the diversion chamber, and the water spray holes are distributed around the air jet pipe.

[0006] As an optimized solution of the above-mentioned combined tunnel flushing device based on a railcar: a telescopic rod is provided between the ball head and the nozzle; the telescopic rod includes a main rod fixedly connected to the ball head and a secondary rod fixedly connected to the nozzle, the main rod is a hollow tube, and the secondary rod is slidably sleeved inside the main rod and can be fixed.

[0007] As another optimized solution for the above-mentioned combined tunnel flushing device based on a railcar: the side wall of the ball seat is provided with a locking column, and during the rotation of the locking column, one end of the locking column can extend into the ball seat and abut against the ball head.

[0008] As another optimized solution for the above-mentioned combined tunnel flushing device based on a railcar: the spray component is formed by splicing multiple spray pipes into a U-shape, with adjacent spray pipes connected by a T-junction elbow, and the nozzles fixed on the T-junction elbow.

[0009] As another optimized solution for the above-mentioned combined tunnel flushing device based on a railcar: the horizontally distributed T-bends are connected to the nozzles via connecting pipes.

[0010] As another optimized solution for the above-mentioned combined tunnel flushing device based on a railcar: the water pump is connected to one of the T-bends through a water outlet pipe, and a valve is provided on the water outlet pipe.

[0011] As another optimized solution of the above-mentioned combined tunnel flushing device based on a railcar: the railcar is equipped with two coiled piles; a water distribution pipe is wound around one coiled pile, one end of which is connected to the water pump outlet and the other end is connected to the diversion chamber; an air guide pipe is wound around the other coiled pile, one end of which is connected to the air pump and the other end is connected to the air jet pipe.

[0012] As another optimized solution for the above-mentioned combined tunnel flushing device based on a railcar: the railcar is equipped with a support rod, the top of which is fixedly connected to the bottom of the ball seat.

[0013] As another optimized solution for the above-mentioned combined tunnel flushing device based on a railcar: both the water distribution pipe and the air guide pipe are connected to the support rod by snap-fit.

[0014] As another optimized solution for the above-mentioned combined tunnel flushing device based on a railcar: the water tank and the water pump inlet are connected through an inlet pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1) This utility model provides a combined tunnel flushing device based on a railcar. A cleaning assembly with a ball seat and a ball head is installed on the railcar. The ball head is equipped with a jet pipe and a water spray hole. An air pump delivers high-pressure gas into the jet pipe, while a water pump injects water into the diversion chamber. The high-pressure gas is ejected from the jet pipe, forming a high-speed airflow at the front end of the nozzle to clean the equipment installed on the tunnel ceiling. The water in the diversion chamber is ejected through the water spray hole. The ejected water cannot flow into the high-speed airflow area, thus avoiding water splashing onto the equipment installed on the tunnel ceiling. The ejected water forms a water wall surrounding the equipment, which blocks dust from spreading and adsorbs dust, improving the cleaning effect.

[0017] 2) In this utility model, the spraying component is formed by splicing multiple spray pipes into a U shape, and two adjacent spray pipes are connected by a T-shaped elbow, so that the spraying component can be flexibly adjusted according to the actual size and shape of the tunnel, which enhances the adaptability of the device and can meet the cleaning needs of tunnels of different specifications.

[0018] 3) In this utility model, the railcar is equipped with two coiled piles, one for winding the water distribution pipe and the other for winding the air guide pipe, so that the water distribution pipe and the air guide pipe can be orderly unfolded when the telescopic rod is extended and neatly stored when the telescopic rod is shortened, avoiding the situation of messy stacking of pipes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the rinsing device;

[0020] Figure 2 This is a cross-sectional view of the nozzle;

[0021] Figure 3 This is a side view of the nozzle;

[0022] Reference numerals: 1. Railcar, 2. Water tank, 3. Water pump, 4. Sprayer assembly, 401. Spray pipe, 5. Nozzle, 6. Cleaning assembly, 601. Support rod, 602. Ball seat, 603. Ball head, 604. Telescopic rod, 605. Spray head, 6051. Air jet pipe, 6052. Water spray hole, 6053. Diversion chamber, 6054. Sealing plate, 606. Locking column, 7. Air pump, 8. Air guide pipe, 9. Water outlet pipe, 10. T-joint elbow, 11. Connecting pipe, 12. Valve, 13. Buckle, 14. Coiled pile, 15. Water inlet pipe, 16. Diversion pipe. Detailed Implementation

[0023] The technical solution of the present invention will be further described in detail below with reference to specific embodiments. Parts not described or disclosed in detail in the following embodiments of the present invention should be understood as prior art known or should be known by those skilled in the art.

[0024] Example 1

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, a combined tunnel flushing device based on a railcar includes a railcar 1, which provides a mobile platform for the entire device. The railcar 1 is equipped with a spraying component 4 and a water tank 2. In this invention, the water tank 2 is composed of five standard-sized water buckets connected by a hot-melt connection process. After the hot-melt connection, the five water buckets form an integrated water tank 2 with a large water storage capacity, providing sufficient water for subsequent flushing operations.

[0026] A water pump 3 is installed between the spray element 4 and the water tank 2. In this invention, the water pump 3 is a vertical pipeline centrifugal pump. The inlet of the water pump 3 is connected to the water tank 2, and the water tank 2 and the inlet of the water pump 3 are connected through an inlet pipe 15. In this invention, the inlet pipe 15 is a high-pressure rubber steel wire hose. The outlet of the water pump 3 is connected to the spray element 4. The spray element 4 is parallel to the tunnel cross-section, and multiple nozzles 5 are spaced apart on the spray element 4. The number of nozzles 5 is 10. Multiple nozzles 5 are configured to spray and wash a large area of ​​the tunnel inner wall.

[0027] The spray unit 4 is formed by splicing multiple spray pipes 401 into a U-shape. Adjacent spray pipes 401 are connected by a T-joint 10, and the nozzle 5 is fixed to the T-joint 10. In this invention, both the spray pipes 401 and the T-joint 10 are galvanized. Galvanizing effectively prevents rust and corrosion of metal parts, extending the service life of the equipment. The nozzle 5 is a universal adjustable duckbill. The universal adjustable duckbill has adjustable characteristics, allowing for flexible adjustment according to different flushing angles and ranges to adapt to various complex tunnel environments. The U-shaped structure better conforms to the shape of the tunnel wall, achieving flushing of the tunnel sidewalls and floor.

[0028] The horizontally distributed T-shaped bends 10 are connected to the nozzles 5 via connecting pipes 11. The nozzles 5 can effectively flush the area under the track car 1 at the bottom of the tunnel. In this invention, the length of the connecting pipe 11 is reasonably adjusted to ensure that the nozzles 605 can accurately align with the area to be flushed under the track car 1, thereby improving the flushing effect.

[0029] The track vehicle 1 is equipped with a cleaning assembly 6 for removing dust from the tunnel ceiling. The cleaning assembly 6 includes a ball seat 602 fixedly mounted on the track vehicle 1, the bottom of which is fixedly connected to the top of a support rod 601 mounted on the track vehicle 1. The support rod 601 increases the height of the ball seat 602, further reducing the distance between the ball head 603 and the tunnel ceiling.

[0030] The ball seat 602 is rotatably equipped with a locking pin 606 on its side wall. During rotation, one end of the locking pin 606 can extend into the ball seat 602 and abut against the ball head 603. The locking pin 606 prevents the ball head 603 from rotating due to vibration or other external forces during operation, ensuring that the nozzle 605 is always aligned with the predetermined cleaning area, thus improving the accuracy and stability of the cleaning operation.

[0031] A ball head 603 is movably installed inside the ball seat 602, and the top of the ball head 603 extends out of the ball seat 602, so that the ball head 603 can rotate flexibly inside the ball seat 602, making it convenient to adjust the angle of the nozzle 605. When there are special structures or slope changes at the top of the tunnel, the nozzle 605 can be aimed at the area to be cleaned by rotating the ball head 603.

[0032] The ball head 603 is provided with a nozzle 605 with its opening facing away from the ball head 603. In this utility model, the nozzle 605 is bowl-shaped, and a sealing plate 6054 for sealing the opening is fixedly provided at the opening end of the nozzle 605. The sealing plate 6054 is embedded in the opening end of the nozzle 605 and is flush with the opening end face, so that the sealing plate 6054 and the nozzle 605 enclose a diversion chamber 6053 that is connected to the outlet of the water pump 3. A water inlet is provided on the nozzle 605 to allow water to enter the diversion chamber 6053. An air jet pipe 6051 is provided at the center of the nozzle 605. One end of nozzle 6051 is connected to air pump 7 mounted on railcar 1. The other end of nozzle 6051 passes sequentially through diversion chamber 6053 and sealing plate 6054. One end of nozzle 6051 is fixedly connected to a nozzle head 605 and flush with the side wall of nozzle head 605. The other end of nozzle 6051 is fixedly connected to sealing plate 6054 and flush with the side of sealing plate 6054 opposite to diversion chamber 6053. Multiple water spray holes 6052 communicating with diversion chamber 6053 are provided on sealing plate 6054, and the water spray holes 6052 are distributed circumferentially along nozzle 6051. In actual operation, air pump 7 delivers high-pressure gas into nozzle 6051, while water pump 3 injects water into diversion chamber 6053. High-pressure gas is ejected from the jet pipe 6051, forming a high-speed airflow at the front end of the nozzle 605 to clean the equipment installed on the tunnel ceiling. Meanwhile, water in the diversion chamber 6053 is ejected through the water spray hole 6052. The ejected water cannot flow into the high-speed airflow area, thus preventing water from splashing onto the equipment installed on the tunnel ceiling. The ejected water forms a water wall surrounding the equipment, which blocks dust from scattering and adsorbs dust, improving the cleaning effect.

[0033] The above are the basic embodiments of this utility model. Further improvements, optimizations, and limitations can be made based on the above to obtain the following embodiments:

[0034] Example 2

[0035] This embodiment is an improvement on embodiment 1. Its main structure is the same as that of embodiment 1, but the improvement lies in:

[0036] like Figure 1 As shown, a telescopic rod 604 is provided between the ball head 603 and the nozzle 605. The telescopic rod 604 includes a main rod fixedly connected to the ball head 603 and a secondary rod fixedly connected to the nozzle 605. The main rod is a hollow tube, and the secondary rod is slidably sleeved inside the main rod and can be fixed. Specifically, multiple pin holes are evenly opened along the length of the main rod's side wall. When it is necessary to adjust the distance between the nozzle 605 and the tunnel top, this can be achieved by stretching or retracting the telescopic rod 604. When adjusted to the appropriate position, the pins are inserted into the pin holes to prevent the secondary rod from retracting into the main rod.

[0037] Example 3

[0038] This embodiment is an improvement on embodiment 1. Its main structure is the same as that of embodiment 1, but the improvement lies in:

[0039] like Figure 1 As shown, the water pump 3 is connected to one of the T-bends 10 via a water outlet pipe 9, which is equipped with a valve 12. Specifically, the valve 12 controls the flow rate and the on / off state of the water. Before the cleaning operation begins, the water flow rate can be adjusted according to the degree of dirtiness in the tunnel and the cleaning requirements. The water distribution pipe 16 delivers a portion of the water flow to the distribution chamber 6053 of the cleaning assembly 6, thereby increasing the water source for cleaning the tunnel roof.

[0040] Example 4

[0041] This embodiment is an improvement on embodiment 1. Its main structure is the same as that of embodiment 1, but the improvement lies in:

[0042] like Figure 1 As shown, the railcar 1 is equipped with two coiled piles 14. The coiled piles 14 are rotatably mounted on the railcar 1. One coiled pile 14 has a water distribution pipe 16 wound around it, with one end connected to the outlet of the water pump 3 and the other end connected to the diversion chamber 6053. The other coiled pile 14 has an air guide pipe 8 wound around it, with one end connected to the air pump 7 and the other end connected to the air jet pipe 6051. Specifically, one end of the water distribution pipe is connected to the outlet pipe, and the other end is connected to the diversion chamber. When the telescopic rod 601 retracts, the operator rotates the coiled pile 14 to wind the pipes that are about to fall onto the railcar 1 around the coiled pile 14. The coiled pile 14 effectively organizes and stores the water distribution pipe 16 and the air guide pipe 8, preventing the pipes from becoming tangled and disordered during the operation of the railcar 1.

[0043] Both the water distribution pipe 16 and the air guide pipe 8 are connected to the support rod 601 via snap fasteners 13. When the telescopic rod 604 extends or retracts, the water distribution pipe 16 and the air guide pipe 8 remain close to the support rod 601, preventing back-and-forth swaying and ensuring the stability of the pipe connection.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined tunnel flushing device based on a railcar, comprising a railcar (1) and a water tank (2) and a spraying element (4) mounted on the railcar (1), wherein a water pump (3) is provided between the spraying element (4) and the water tank (2), the inlet of the water pump (3) is connected to the water tank (2), and the outlet of the water pump (3) is connected to the spraying element (4), wherein the spraying element (4) is parallel to the tunnel cross section, and a plurality of nozzles (5) are spaced apart on the spraying element (4), characterized in that: The track vehicle (1) is equipped with a cleaning assembly (6) for removing dust from the top of the tunnel. The cleaning assembly (6) includes a ball seat (602) fixedly mounted on the track vehicle (1). A ball head (603) is movably mounted inside the ball seat (602), and the top of the ball head (603) extends out of the ball seat (602). The ball head (603) is equipped with a nozzle (605) with its opening facing away from the ball head (603). A sealing plate (6054) for sealing the opening is fixedly mounted at the opening end of the nozzle (605), so that the sealing plate (6054) and the nozzle (605) surround each other. A diversion chamber (6053) is formed and connected to the outlet of the water pump (3). A jet pipe (6051) is provided at the center of the nozzle (605). One end of the jet pipe (6051) is connected to the air pump (7) installed on the railcar (1). The other end of the jet pipe (6051) passes through the diversion chamber (6053) and the sealing plate (6054) in sequence. The sealing plate (6054) is provided with a plurality of water spray holes (6052) connected to the diversion chamber (6053), and the water spray holes (6052) are distributed around the jet pipe (6051).

2. A railcar-based combined tunnel flushing apparatus as defined in claim 1, wherein: A telescopic rod (604) is provided between the ball head (603) and the nozzle (605); the telescopic rod (604) includes a mother rod fixedly connected to the ball head (603) and a daughter rod fixedly connected to the nozzle (605). The mother rod is hollow and tubular, and the daughter rod is slidably sleeved inside the mother rod and can be fixed.

3. A railcar-based modular tunnel flushing apparatus as defined in claim 1, wherein: The ball seat (602) has a locking pin (606) rotatably mounted on its side wall. During the rotation of the locking pin (606), one end of the locking pin (606) can extend into the ball seat (602) and abut against the ball head (603).

4. A railcar-based modular tunnel flushing apparatus as defined in claim 1, wherein: The spray component (4) is formed by splicing multiple spray pipes (401) into a U shape. Adjacent spray pipes (401) are connected by a three-way elbow (10), and the nozzle (5) is fixed on the three-way elbow (10).

5. A railcar-based modular tunnel flushing apparatus as defined in claim 4, wherein: The horizontally distributed tee elbows (10) are connected to the nozzles (5) via connecting pipes (11).

6. A railcar-based modular tunnel flushing apparatus as defined in claim 4, wherein: The water pump (3) is connected to one of the three-way elbows (10) through the outlet pipe (9), and the outlet pipe (9) is equipped with a valve (12).

7. A railcar-based modular tunnel flushing apparatus as defined in claim 6, wherein: The track vehicle (1) is equipped with two coiled piles (14); a water distribution pipe (16) is wound around one coiled pile (14), one end of which is connected to the outlet of the water pump (3) and the other end is connected to the diversion chamber (6053); an air guide pipe (8) is wound around the other coiled pile (14), one end of which is connected to the air pump (7) and the other end is connected to the air jet pipe (6051).

8. A railcar-based combined tunnel flushing apparatus as defined in claim 7, wherein: The railcar (1) is equipped with a support rod (601), and the top of the support rod (601) is fixedly connected to the bottom of the ball seat (602).

9. A railcar-based modular tunnel flushing apparatus as defined in claim 8, wherein: Both the water distribution pipe (16) and the air guide pipe (8) are connected to the support rod (601) via a buckle (13).

10. A railcar-based modular tunnel flushing apparatus as defined in claim 1, wherein: The water tank (2) and the water pump (3) inlet are connected through the water inlet pipe (15).

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