A sponge bullet machine for pipe cleaning

Abstract

The utility model relates to the field of pipe fitting cleaning, concretely to a sponge bullet machine for pipe fitting cleaning, including the discharge mechanism for being used to cooperate to the pipeline to be washed and the cleaning bullet for being used to clean the inside of the pipeline and the high pressure power mechanism for being used to provide the cleaning power for the cleaning bullet, the high pressure power mechanism is installed on the upper end of workstation, the high pressure blowing pipe rear portion of high pressure power mechanism is connected with the telescopic mechanism, the discharge mechanism is installed at the front end of high pressure power mechanism, and the cleaning bullet is placed in the inside of the storage bin of discharge mechanism side by side. The conical cleaning bullet is more convenient to enter the pipeline to be washed when being subjected to high pressure, thereby cleaning the pipeline, and the wrapped sponge outside of the cleaning bullet cleans the dirt, and the tail plate inside is supported by the support frame when being subjected to the high pressure airflow impact of the tail, thereby improving the friction between the wrapped sponge and the inner wall of the pipeline and improving the cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of pipe cleaning, and in particular to a sponge bullet machine for cleaning pipes. Background Technology

[0002] During the production and maintenance of hydraulic hoses, industrial pipelines, and various pipe fittings, burrs, metal shavings, oil stains, and particulate impurities often adhere to the inner walls of the pipes. If these remain inside the pipe, they can contaminate the fluid and damage downstream equipment as the medium flows. Currently, high-pressure gas is commonly used to inject cleaning bullets (commonly known as sponge bullets) made of sponge or foam into the pipeline, using the friction between the cleaning bullet and the pipe wall to scrape away the dirt. Traditional methods often rely on manual loading of each bullet into the launch port, which is cumbersome, inefficient, and poses a risk of gas leakage. Although some equipment is equipped with a magazine that can hold multiple cleaning bullets for continuous operation, these bullets are mostly single sponge bodies without their own supporting frame. When pushed by air pressure, they are difficult to actively expand and adhere to the pipe wall, resulting in insufficient cleaning power for stubborn dirt. Furthermore, the interference fit is fixed and there is a lack of overpressure release structure, which can easily cause jamming due to excessive compression when the pipe diameter changes or when encountering local blockages, affecting the continuity of cleaning and operational safety.

[0003] In the prior art, compared with Chinese patent CN218797928U, which discloses a bullet cleaning machine for cleaning pipe fittings, this patent discloses a similar sponge bullet cleaning device. It achieves continuous bullet feeding through a magazine that can hold multiple sponge bullets and a transmission structure that drives the magazine to rotate. It also uses a clamping structure to ensure that the pipe and the air nozzle are coaxial. However, the cleaning bullets in this solution are still ordinary sponge bodies without an internal support skeleton. When impacted by airflow, they cannot actively expand radially to increase the frictional contact area with the pipe wall, and their ability to clean firmly attached dirt is limited. The cleaning bullets lack an overpressure adaptive release structure, and it is difficult to unload and retract when the pipe diameter changes suddenly or when encountering local resistance, so there is still a risk of jamming. The cleaning bullets in the magazine lack attitude limiting and buffer support, and the bullet feeding stability and adaptability to different pipe diameters are insufficient. Utility Model Content

[0004] The purpose of this invention is to provide a sponge bullet machine for cleaning pipe fittings in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A sponge bullet machine for cleaning pipe fittings includes a discharge mechanism for engaging with the pipe to be cleaned, a cleaning bullet for cleaning the inside of the pipe, and a high-pressure power mechanism for providing cleaning power to the cleaning bullet. The high-pressure power mechanism is installed on the upper end of a workbench. A telescopic mechanism is connected to the rear of the high-pressure blowpipe of the high-pressure power mechanism. The discharge mechanism is installed at the front end of the high-pressure power mechanism. The cleaning bullets are placed side by side inside the storage bin of the discharge mechanism. The discharge mechanism also includes a front-end fitting pipe, which is located at the bottom front of the storage bin, and the opening positions of the front-end fitting pipe and the storage bin are provided with isolation membranes for positioning cleaning bullets; The cleaning bullet includes a wrapping sponge, the front half of which is conical and the rear half is cylindrical. A support frame is wrapped inside the wrapping sponge. A conical head is fixed to the front end of the support frame, and a tail plate is fixed to the rear end of the support frame.

[0006] Preferably, the storage bin is equipped with a guide frame to limit the shaking of the cleaning bullet. The guide frame includes guide plates on both sides and a support plate at the bottom. An elastic support ball for supporting the cleaning bullet is movably disposed on the bottom support plate of the guide frame.

[0007] Preferably, the high-pressure power mechanism includes a high-pressure blowpipe, which is correspondingly disposed at the rear end opening of the storage silo. The high-pressure blowpipe is slidably fitted with the storage silo. A fixing frame is provided at the rear of the storage silo outside the high-pressure blowpipe. A pressure supply pipe is connected to the tail end of the high-pressure blowpipe. A pressure gauge is provided at the top of the high-pressure blowpipe near the rear side.

[0008] Preferably, the rear end of the high-pressure blowpipe is connected to a telescopic cylinder via a telescopic frame, and the telescopic frame is a hollow cylindrical structure.

[0009] Preferably, the support frame consists of six steel bars arranged in a spiral uniform array.

[0010] Preferably, the support frame includes an expansion portion and a release portion, wherein the expansion portion is an outwardly convex arc shape and the release portion is an inwardly concave arc shape.

[0011] Preferably, the length ratio of the expansion portion to the release portion is 3:2.

[0012] Compared with existing technologies, the beneficial effects are as follows: The conical cleaning bullet makes it easier to enter the pipe to be cleaned under high pressure, thus cleaning the pipe. The outer sponge of the cleaning bullet cleans the dirt, while the internal tail plate, when impacted by the high-pressure airflow at the tail end, causes the support frame to be lifted, thereby increasing the friction between the outer sponge and the inner wall of the pipe and improving the cleaning effect. When the internal pressure is too high, the release part can also release the expansion part to avoid jamming and ensure the cleaning effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a sponge bullet machine for cleaning pipe fittings according to the present invention; Figure 2 This is a schematic diagram of the discharge mechanism of a sponge bullet machine for cleaning pipe fittings as described in this utility model; Figure 3 This is a schematic diagram of the high-pressure power mechanism of a sponge bullet machine for cleaning pipe fittings as described in this utility model; Figure 4 This is a schematic diagram of the external structure of the cleaning bullet of the sponge bullet machine for cleaning pipe fittings described in this utility model; Figure 5 This is a schematic diagram of the internal structure of the cleaning bullet of the sponge bullet machine for cleaning pipe fittings described in this utility model; Figure 6 This is a schematic diagram of the support frame structure of a sponge bullet machine for cleaning pipe fittings as described in this utility model.

[0015] The annotations in the attached figures are explained as follows: 1. Workbench; 2. Discharge mechanism; 3. High-pressure power mechanism; 4. Telescopic mechanism; 5. Cleaning bomb; 21. Storage bin; 22. Front-end fitting pipe; 23. Guide frame; 24. Isolation diaphragm; 25. Elastic support ball; 31. Fixing frame; 32. High-pressure blowing pipe; 33. Pressure gauge; 34. Pressure supply pipe; 41. Telescopic frame; 51. Wrapping sponge; 52. Support frame; 53. Tail plate; 54. Cone head; 521. Expansion section; 522. Release section. Detailed Implementation

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-6As shown, a sponge bullet machine for cleaning pipe fittings includes a discharge mechanism 2 for cooperating with the pipe to be cleaned, a cleaning bullet 5 for cleaning the inside of the pipe, and a high-pressure power mechanism 3 for providing cleaning power to the cleaning bullet 5. The high-pressure power mechanism 3 is installed on the upper end of the workbench 1. The rear of the high-pressure blow pipe 32 of the high-pressure power mechanism 3 is connected to a telescopic mechanism 4. The discharge mechanism 2 is installed at the front end of the high-pressure power mechanism 3. The cleaning bullets 5 are placed side by side inside the storage bin 21 of the discharge mechanism 2. The discharge mechanism 2 also includes a front-end fitting pipe 22, which is located at the bottom front end of the storage bin 21. The front opening of the front-end fitting pipe 22 is formed with a tapered opening to fit the pipe to be cleaned. The openings of the front-end fitting pipe 22 and the storage bin 21 are provided with isolation membranes 24 for positioning cleaning springs 5. The cleaning bullet 5 includes a wrapping sponge 51, the front half of which is conical and the rear half is cylindrical. A support frame 52 is wrapped inside the wrapping sponge 51. A cone head 54 is fixed to the front end of the support frame 52 and a tail plate 53 is fixed to the rear end of the support frame 52.

[0018] In this embodiment, the storage bin 21 is provided with a guide frame 23 to limit the shaking of the cleaning bullet 5. The guide frame 23 includes guide plates on both sides and a support plate at the bottom. An elastic support ball 25 for supporting the cleaning bullet 5 is movably arranged on the bottom support plate of the guide frame 23.

[0019] With this configuration, the guide plate and support plate provide lateral and bottom restraint for the cleaning bullet 5, preventing it from tilting or overlapping due to equipment vibration or handling within the storage bin 21. The elastic support ball 25 lifts the cleaning bullet 5 in a point-contact manner, which reduces frictional resistance, facilitates continuous discharge, absorbs impact, and ensures that the cleaning bullet 5 is upright when entering the front-end fitting tube 22, thereby improving feeding stability and cleaning consistency.

[0020] In this embodiment, the high-pressure power mechanism 3 includes a high-pressure blow pipe 32, which is correspondingly installed at the rear opening of the storage bin 21. The high-pressure blow pipe 32 is slidably fitted with the storage bin 21. A fixing frame 31 is provided at the rear of the storage bin 21 outside the high-pressure blow pipe 32. A pressure supply pipe 34 is connected to the tail of the high-pressure blow pipe 32. A pressure gauge 33 is provided at the top of the high-pressure blow pipe 32 near the rear side.

[0021] With this configuration, the high-pressure blowpipe 32 and the rear opening of the storage bin 21 slide together, allowing the high-pressure airflow to directly act on the tail of the cleaning bullet 5; the pressure gauge 33 monitors the air supply pressure in real time, making it easy to adjust the output according to the pipe diameter and the degree of dirt; the fixing frame 31 ensures that the high-pressure blowpipe 32 and the storage bin 21 are coaxial, avoiding the cleaning bullet 5 from getting stuck due to biased blowing, and improving the reliability and safety of cleaning the inner wall of the pipe.

[0022] In this embodiment, the rear end of the high-pressure blowpipe 32 is connected to a telescopic cylinder via a telescopic frame 41, which is a hollow cylindrical structure.

[0023] With this configuration, the telescopic cylinder pushes and pulls the high-pressure blowpipe 32 through the telescopic frame 41 to adjust its distance from the storage bin 21; during loading, it moves backward to avoid the cleaning bullet 5, and during operation, it moves forward to press against the rear opening to form a sealed launch chamber, reducing pressure leakage and concentrating the high-pressure airflow energy on the cleaning bullet 5, thereby increasing the cleaning thrust on long-distance, large-diameter pipelines.

[0024] In this embodiment, the support frame 52 is composed of six steel bars, which are arranged in a spiral uniform array.

[0025] With this configuration, the support frame 52 composed of six spiral steel bars forms a uniform skeleton inside the sponge 51; when the high-pressure gas impacts the tail plate 53, the spiral steel bars simultaneously support the sponge circumferentially, so that its outer circumference forms a continuous and close scraping ring with the pipe wall, enhancing the cleaning ability; the spiral direction also allows the cleaning bullet 5 to twist and pass through the pipe to a certain extent, reducing the risk of pipe jamming.

[0026] In this embodiment, the support frame 52 includes an expansion portion 521 and a release portion 522. The expansion portion 521 is an outwardly convex arc shape, and the release portion 522 is an inwardly concave arc shape.

[0027] With this design, the outwardly convex arc-shaped expansion part 521 expands radially outward when under pressure, increasing the adhesion and friction between the wrapped sponge 51 and the pipe wall, and enhancing the mechanical scraping of attached oil and impurities; the inwardly concave arc-shaped release part 522 provides elastic retraction space when the air pressure is too high or the pipe diameter changes suddenly, preventing the support frame 52 from over-expanding and causing the sponge to tear or get stuck, thus protecting the pipe and the cleaning cartridge 5.

[0028] In this embodiment, the length ratio of the expansion portion 521 to the release portion 522 is 3:2.

[0029] With this configuration, the expansion section 521 is relatively long, ensuring that the cleaning bullet 5 has sufficient effective support length and cleaning contact area under normal operating conditions; the release section 522 is of moderate proportion, releasing stress in time during high pressure peaks, so that the deformation of the two is coordinated, taking into account both cleaning force and passability, preventing blockage caused by excessive support or insufficient rebound, and improving adaptability to different pipe diameters.

[0030] Working principle: When the sponge bullet machine for pipe cleaning is working, several cleaning bullets 5 are first placed side by side into the storage bin 21. The guide plate and support plate of the guide frame 23 restrict their lateral swaying. The elastic support ball 25 supports the cleaning bullets 5 in a rolling contact manner, so that they are neatly arranged and ready to be fired. The front fitting pipe 22 is aligned with the inlet of the pipe to be cleaned. The isolation diaphragm 24 seals the opening of the storage bin 21 and provides a limit for the cleaning bullets 5 at the front end. After the high-pressure air source component (not shown) inside the workbench 1 is started, the piston rod at the front end of the telescopic cylinder drives the high-pressure blow pipe 32 to move forward along the fixed frame 31 through the telescopic frame 41. The sliding fit with the rear opening of the storage bin 21 forms a sealed firing chamber. The high-pressure gas is sprayed out from the pressure supply pipe 34 through the high-pressure blow pipe 32, which blows through the isolation diaphragm 24 and impacts the tail plate 53 of the cleaning bullet 5. The pressure gauge 33 displays the working pressure in real time. When the high-pressure airflow acts on the tail plate 53, it pushes the support frame 52 forward. The six steel bars of the spiral array are stressed, causing the sponge 51 to expand circumferentially. The front cone 54 is first introduced into the pipe, and the rear cylindrical sponge adheres tightly to the pipe wall to form a scraping ring. The airflow continues to push the cleaning bullet 5 at high speed in the pipe, wiping away oil and attached impurities from the outer wall of the sponge 51, achieving continuous cleaning. When the pipe diameter changes or the air pressure rises suddenly, the expansion part 521 of the support frame 52 continues to expand outward to enhance friction, and the release part 522 retracts inward to absorb excess stress, deforming in a 3:2 length ratio to prevent the sponge from tearing or getting stuck. After one cleaning bullet 5 is fired, the next one in the storage bin 21 automatically fills the gap under gravity, and the isolation diaphragm 24 is positioned to continue firing (as shown in the attached image). Figure 2 As shown, the isolation diaphragm 24 is made of rubber film. There are four isolation diaphragms 24, and they are arranged in a circumferential array at the mating position of the storage bin 21 and the front-end mating pipe 22. Since there is a risk of falling forward when the isolation diaphragm 24 is not set, the isolation diaphragm 24 is set here to provide initial shielding and front-end positioning when falling. Moreover, this type of diaphragm itself has low resistance, while the pressure of the subsequent high-pressure gas impacting the cleaning bullet 5 is large, which does not affect the work done by the subsequent high-pressure gas on the cleaning bullet. Then the telescopic frame 41 moves backward to facilitate the loading of new cleaning bullets 5, thus completing the efficient and low-loss cleaning of the inner wall of the pipe.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sponge bullet cleaner for cleaning pipe fittings, characterized in that: It includes a discharge mechanism (2) for cooperating with the pipe to be cleaned, a cleaning bullet (5) for cleaning the inside of the pipe, and a high-pressure power mechanism (3) for providing cleaning power to the cleaning bullet (5). The high-pressure power mechanism (3) is installed on the upper end of the workbench (1). The high-pressure blow pipe (32) of the high-pressure power mechanism (3) is connected to a telescopic mechanism (4) at the rear. The discharge mechanism (2) is installed at the front end of the high-pressure power mechanism (3). The cleaning bullet (5) is placed side by side inside the storage bin (21) of the discharge mechanism (2). The discharge mechanism (2) also includes a front-end fitting tube (22), which is located at the bottom front end of the storage bin (21). The opening positions of the front-end fitting tube (22) and the storage bin (21) are provided with isolation membranes (24) for positioning cleaning bullets (5). The cleaning bullet (5) includes a wrapping sponge (51), the front half of which is conical and the back half is cylindrical. A support frame (52) is wrapped inside the wrapping sponge (51). A cone head (54) is fixed to the front end of the support frame (52), and a tail plate (53) is fixed to the rear end of the support frame (52).

2. The sponge bullet cleaner for pipe cleaning according to claim 1, characterized in that: The storage bin (21) is equipped with a guide frame (23) to limit the shaking of the cleaning bullet (5). The guide frame (23) includes guide plates on both sides and a support plate at the bottom. An elastic support ball (25) supporting the cleaning bullet (5) is movably arranged on the bottom support plate of the guide frame (23).

3. A sponge bullet cleaner for pipe cleaning according to claim 2, characterized in that: The high-pressure power mechanism (3) includes a high-pressure blow pipe (32), which is correspondingly located at the rear opening of the storage bin (21). The high-pressure blow pipe (32) is slidably fitted to the storage bin (21). A fixing frame (31) is provided at the rear of the storage bin (21) outside the high-pressure blow pipe (32). A pressure supply pipe (34) is connected to the tail of the high-pressure blow pipe (32). A pressure gauge (33) is provided at the top of the high-pressure blow pipe (32) near the rear side.

4. A sponge bullet cleaner for pipe cleaning according to claim 3, characterized in that: The high-pressure blowpipe (32) has a telescopic cylinder connected to its rear end via a telescopic frame (41), which is a hollow cylindrical structure.

5. A sponge bullet cleaner for pipe cleaning according to claim 1, characterized in that: The support frame (52) consists of six steel bars arranged in a spiral uniform array.

6. A sponge bullet cleaner for pipe cleaning according to claim 5, characterized in that: The support frame (52) includes an expansion portion (521) and a release portion (522). The expansion portion (521) is an outwardly convex arc shape, and the release portion (522) is an inwardly concave arc shape.

7. A sponge bullet cleaner for pipe cleaning according to claim 6, characterized in that: The length ratio of the expansion portion (521) to the release portion (522) is 3:2.

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