Pipe fitting cleaning machine

By designing a pipe fitting cleaning machine, the use of splash-proof boxes and shielding curtains to prevent the cleaning liquid from splashing, the slip risks and environmental pollution problems caused by the splashing of the cleaning liquid are solved, and the recycling of the cleaning liquid is realized.

CN223145502UActive Publication Date: 2025-07-25JIANGSU HUITAO MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
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Patent Information

Application Number
CN202422207603.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2025-07-25
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

The splash of cleaning liquid in existing pipe fitting cleaning equipment causes slippery ground, increasing the risk of workers slipping and contaminating the workshop environment.

Method used

A pipe fitting cleaning machine is designed, including a cleaning tank, a splashproof box, a medium container, a liquid supply device and a spray gun. The cleaning liquid is sprayed through the spray gun. After the cleaning liquid flows in the pipe fittings, it enters the splashproof box and returns to the cleaning tank. The splashproof box and a shielding curtain are used to prevent the cleaning liquid from splashing, and the recycling of the cleaning liquid is realized.

Benefits of technology

Effectively prevent cleaning liquid from splashing, reduce the risk of workers slipping, improve the workshop production environment, and realize the recycling of cleaning liquid.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pipe fitting cleaning machine which comprises a cleaning tank, a splash-proof box, a medium container, a liquid supply device and a spray gun. The liquid supply device is connected with the medium container and the spray gun and used for pumping the cleaning liquid in the medium container into the spray gun, the spray gun is used for being aligned with one end of a to-be-cleaned pipe fitting and spraying the cleaning liquid into the pipe fitting, and one side of the splash-proof box is connected with a shielding curtain. The other end of the pipe fitting is used for penetrating through the shielding curtain and then stretching into the splash-proof box so that the cleaning liquid in the pipe fitting can flow out into the splash-proof box, and the splash-proof box is arranged in the cleaning tank so that the cleaning liquid in the splash-proof box can flow out into the cleaning tank. The medium container is connected with the cleaning tank so that cleaning liquid in the cleaning tank can flow back into the medium container. The pipe fitting cleaning device can prevent cleaning liquid from splashing when a pipe fitting is cleaned, so that the risk that a worker slips can be reduced, and the production environment of a workshop can be improved.
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Description

Technical Field

[0001] The utility model relates to a pipe fitting cleaning machine. Background Art

[0002] At present, during the production and manufacturing process of pipe products, it is usually necessary to clean the inner wall of the pipe fittings. A hydraulic pipe cleaning device is disclosed in a Chinese patent with the publication number CN208116316U. When using this device to clean the pipe fittings, one end of the pipe fitting needs to be extended into the cleaning operation box, and then a cleaning gun is used to spray the cleaning liquid towards the other end of the pipe fitting. The cleaning liquid rapidly flows inside the pipe fitting to wash the inner wall of the pipe fitting, and then the cleaning liquid inside the pipe fitting sprays out from the pipe fitting and flows into the cleaning operation box, realizing the cleaning of the inner wall of the pipe fitting. However, since the flow rate of the cleaning liquid inside the pipe fitting is relatively fast, when the cleaning liquid sprays out from the pipe fitting and flows into the cleaning operation box, it will splash everywhere. The cleaning liquid splashing outside will cause the ground to be slippery, increasing the risk of workers slipping and also deteriorating the workshop production environment. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a pipe fitting cleaning machine which can prevent the cleaning liquid from splashing when cleaning the pipe fittings, thereby reducing the risk of workers slipping and improving the workshop production environment.

[0004] To solve the above technical problem, the technical solution of the utility model is: a pipe fitting cleaning machine, comprising a cleaning tank, a splash-proof box, a medium container, a liquid supply device and a spray gun;

[0005] The liquid supply device is respectively connected to the medium container and the spray gun and is used for pumping the cleaning liquid in the medium container into the spray gun;

[0006] The spray gun is used for aiming at one end of the pipe fitting to be cleaned and spraying the cleaning liquid into the pipe fitting;

[0007] One side of the splash-proof box is connected with a shielding curtain, and the other end of the pipe fitting to be cleaned is used for passing through the shielding curtain and extending into the splash-proof box so that the cleaning liquid sprayed into the pipe fitting by the spray gun flows out into the splash-proof box;

[0008] The splash-proof box is arranged in the cleaning tank so that the cleaning liquid in the splash-proof box flows out into the cleaning tank;

[0009] The medium container is connected to the cleaning tank so that the cleaning liquid in the cleaning tank flows back into the medium container.

[0010] Furthermore, at least one layer of porous bottom plate is arranged at the bottom of the splash-proof box, and the cleaning liquid in the splash-proof box passes through the porous bottom plate and then flows into the cleaning tank.

[0011] Further, a liquid collecting cavity that is recessed downward is provided at the bottom of the cleaning tank, and the medium container is connected to the liquid collecting cavity in the cleaning tank so that the cleaning liquid in the cleaning tank converges and flows into the liquid collecting cavity and then into the medium container.

[0012] Further, a porous partition is connected in the cleaning tank;

[0013] The porous partition is located above the bottom wall of the cleaning tank, a liquid drainage interlayer is formed between the porous partition and the bottom wall of the cleaning tank, and the liquid collecting cavity is communicated with the liquid drainage interlayer;

[0014] The splash-proof box is slidably arranged in the cleaning tank and is located above the porous partition, and the splash-proof box has a working position located above the liquid collecting cavity during the sliding process.

[0015] Further, the medium container is connected to the liquid collecting cavity through a first filter and a filter pipeline; wherein, the first filter is installed in the liquid collecting cavity, one end of the filter pipeline is connected to the first filter, and the other end of the filter pipeline is connected to the medium container;

[0016] The medium container is also connected to the liquid collecting cavity through a second filter; wherein, a discharge port is provided at the bottom of the liquid collecting cavity, the discharge port is connected to the inlet of the second filter, and the outlet of the second filter is connected to the medium container.

[0017] Further, a specific structure of the liquid supply device is provided, and the liquid supply device includes a liquid supply pump and a third filter;

[0018] The inlet of the liquid supply pump is connected to the medium container;

[0019] The outlet of the liquid supply pump is connected to the inlet of the third filter;

[0020] The outlet of the third filter is connected to the spray gun.

[0021] Further, the liquid supply device further includes an air inlet pipeline, the air inlet pipeline is connected in parallel with the outlet of the third filter and then connected to the spray gun, the air inlet pipeline is used for accessing compressed gas so that the compressed gas is mixed with the cleaning liquid and then sprayed out from the spray gun, and a pulse generator is connected in the air inlet pipeline.

[0022] Further, the liquid supply device further includes a reflux branch; wherein, one end of the reflux branch is connected to the outlet of the third filter, the other end of the reflux branch is connected to the medium container and extends to the bottom of the medium container, and a control valve and a throttle valve are connected in the reflux branch.

[0023] Further, the inlet of the liquid supply pump is connected to the medium container through a liquid inlet pipeline and a fourth filter; wherein, the fourth filter is arranged in the medium container, one end of the liquid inlet pipeline is connected to the fourth filter, and the other end of the liquid inlet pipeline is connected to the inlet of the liquid supply pump.

[0024] Further, the pipe fitting cleaning machine further includes a frame, and the medium container is integrated on the frame;

[0025] A cleaning hole communicating with the medium container is provided on the frame, and a hole cover is connected to the cleaning hole;

[0026] A ventilation port communicating with the medium container is provided on the frame, and an air filter is connected in the ventilation port.

[0027] After adopting the above technical solution, aim the spray gun at one end of the pipe fitting, pass the other end of the pipe fitting through the shielding curtain and extend it into the splash-proof box, the liquid supply device pumps the cleaning liquid in the medium container to the spray gun, when the trigger of the spray gun is pressed, the spray gun sprays the cleaning liquid into the pipe fitting, the cleaning liquid flows rapidly in the pipe fitting and flushes the inner wall of the pipe fitting, thereby realizing the cleaning of the inner wall of the pipe fitting. The cleaning liquid sprayed into the pipe fitting by the spray gun will flow out from the other end of the pipe fitting into the splash-proof box, then the cleaning liquid in the splash-proof box will flow out to the cleaning tank, and then the cleaning liquid in the cleaning tank will flow back to the medium container, realizing the recycling of the cleaning liquid. Among them, the flow rate of the cleaning liquid in the pipe fitting is relatively fast. When the cleaning liquid in the pipe fitting flows into the splash-proof box in a nearly jet-like manner, the splash-proof box and the shielding curtain can block the cleaning liquid sprayed out from the pipe fitting, thereby preventing the cleaning liquid from splashing everywhere, avoiding the wet floor caused by the splashing cleaning liquid, reducing the risk of workers slipping, and improving the production environment of the workshop. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the pipe fitting cleaning machine of the present invention when cleaning the pipe fitting;

[0029] Figure 2 It is a three-dimensional sectional view of the pipe fitting cleaning machine of the present invention;

[0030] Figure 3 It is a schematic structural diagram of the pipe fitting cleaning machine of the present invention when cleaning the liquid collection cavity;

[0031] Figure 4 It is a schematic structural diagram of the liquid collection cavity of the present invention connected to the medium container;

[0032] Figure 5 It is a schematic structural diagram of the liquid supply device of the present invention;

[0033] Figure 6 This is a schematic structural view of the dust-proof cover of the present utility model covering the cleaning tank. Specific embodiments

[0034] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments in conjunction with the accompanying drawings.

[0035] As Figures 1 to 6 shown, a pipe fitting cleaning machine includes a cleaning tank 1, a splash-proof box 2, a medium container 3, a liquid supply device, and a spray gun 4;

[0036] The liquid supply device is respectively connected to the medium container 3 and the spray gun 4 and is used to pump the cleaning liquid in the medium container 3 into the spray gun 4;

[0037] The spray gun 4 is used to aim at one end of the pipe fitting 5 to be cleaned and spray the cleaning liquid into the pipe fitting 5;

[0038] One side of the splash-proof box 2 is connected with a shielding curtain 6, and the other end of the pipe fitting 5 to be cleaned is used to pass through the shielding curtain 6 and then extend into the splash-proof box 2 so that the cleaning liquid sprayed into the pipe fitting 5 by the spray gun 4 flows out into the splash-proof box 2;

[0039] The splash-proof box 2 is arranged in the cleaning tank 1 so that the cleaning liquid in the splash-proof box 2 flows out into the cleaning tank 1;

[0040] The medium container 3 is connected to the cleaning tank 1 so that the cleaning liquid in the cleaning tank 1 flows back into the medium container 3. Specifically, aim the spray gun 4 at one end of the pipe fitting 5, pass the other end of the pipe fitting 5 through the shielding curtain 6 and then extend it into the splash-proof box 2. The liquid supply device pumps the cleaning liquid in the medium container 3 into the spray gun 4. When the trigger of the spray gun 4 is pressed, the spray gun 4 sprays the cleaning liquid into the pipe fitting 5. The cleaning liquid flows rapidly in the pipe fitting 5 and flushes the inner wall of the pipe fitting 5, thus realizing the cleaning of the inner wall of the pipe fitting 5. The cleaning liquid sprayed into the pipe fitting 5 by the spray gun 4 will flow out from the other end of the pipe fitting 5 into the splash-proof box 2, then the cleaning liquid in the splash-proof box 2 flows out into the cleaning tank 1, and then the cleaning liquid in the cleaning tank 1 flows back into the medium container 3, realizing the recycling of the cleaning liquid. Further specifically, the flow rate of the cleaning liquid in the pipe fitting 5 is relatively fast. When the cleaning liquid in the pipe fitting 5 flows into the splash-proof box 2 in a nearly jet-like manner, the splash-proof box 2 and the shielding curtain 6 can block the cleaning liquid sprayed out from the pipe fitting 5, thus preventing the cleaning liquid from splashing everywhere, avoiding the wet floor caused by the splashing cleaning liquid, reducing the risk of workers slipping, and improving the production environment of the workshop. In this embodiment, the cleaning liquid can be oil liquid.

[0041] As Figure 2 shown, at least one layer of porous bottom plate 7 is provided at the bottom of the splash-proof box 2, and the cleaning liquid in the splash-proof box 2 flows through the porous bottom plate 7 and then into the cleaning tank 1; in this embodiment, two layers of porous bottom plates 7 are sequentially arranged from top to bottom, and the porous bottom plate 7 is used for preliminary filtration of the cleaning liquid.

[0042] As Figures 2 to 4 shown, a liquid collecting cavity 8 is provided at the bottom of the cleaning tank 1 and is recessed downward. The medium container 3 is connected to the liquid collecting cavity 8 in the cleaning tank 1 so that the cleaning liquid in the cleaning tank 1 converges and flows into the liquid collecting cavity 8 and then into the medium container 3.

[0043] As Figures 1 to 3 shown, a porous partition 9 is connected in the cleaning tank 1;

[0044] The porous partition 9 is located above the bottom wall of the cleaning tank 1, and a drainage sandwich layer 10 is formed between the porous partition 9 and the bottom wall of the cleaning tank 1. The liquid collecting cavity 8 is communicated with the drainage sandwich layer 10;

[0045] The splash-proof box 2 is slidably arranged in the cleaning tank 1 and is located above the porous partition 9. The splash-proof box 2 has a working position above the liquid collecting cavity 8 during the sliding process.

[0046] Specifically, during normal operation, the splash-proof box 2 is slid to the working position as shown in Figure 2 shown. The cleaning liquid sprayed into the pipe fitting 5 by the spray gun 4 flows out from the other end of the pipe fitting 5 and into the splash-proof box 2. The cleaning liquid in the splash-proof box 2 first passes through the porous bottom plate 7 and then flows downward into the cleaning tank 1. The cleaning liquid in the cleaning tank 1 passes through the porous partition 9 and then flows downward into the drainage sandwich layer 10. Then, the cleaning liquid in the drainage sandwich layer 10 converges and flows into the liquid collecting cavity 8, and then the cleaning liquid flows from the liquid collecting cavity 8 into the medium container 3. Among them, through holes are densely distributed on both the porous bottom plate 7 and the porous partition 9, and both the porous bottom plate 7 and the porous partition 9 are used for preliminary filtration of the cleaning liquid.

[0047] Further specifically, when it is necessary to clean the liquid collecting cavity 8, the splash-proof box 2 is removed from the working position, and then as shown in Figure 3 shown, a porous partition 9 above the liquid collecting cavity 8 is removed to expose the liquid collecting cavity 8, which facilitates the cleaning of the liquid collecting cavity 8. In this embodiment, the splash-proof box 2 is slidably arranged in the cleaning tank 1 through a linear guide rail.

[0048] As Figures 2 to 4As shown, the medium container 3 can be connected to the liquid collection chamber 8 through the first filter 11 and the filter pipeline 12. Among them, the first filter 11 is installed in the liquid collection chamber 8. One end of the filter pipeline 12 is connected to the first filter 11, and the other end of the filter pipeline 12 is connected to the medium container 3. When the liquid level in the liquid collection chamber 8 is relatively high, the cleaning liquid in the liquid collection chamber 8 flows into the medium container 3 through the filter pipeline 12 after being filtered by the first filter 11.

[0049] The medium container 3 can also be connected to the liquid collection chamber 8 through the second filter 13. Among them, a discharge port is provided at the bottom of the liquid collection chamber 8. The discharge port is connected to the inlet of the second filter 13, and the outlet of the second filter 13 is connected to the medium container 3. The remaining cleaning liquid in the liquid collection chamber 8 will flow into the second filter 13 from the discharge port at the bottom for filtration and then flow into the medium container 3.

[0050] As Figure 2 、 5 shown, the liquid supply device can include a liquid supply pump 14 and a third filter 15.

[0051] The inlet of the liquid supply pump 14 is connected to the medium container 3.

[0052] The outlet of the liquid supply pump 14 is connected to the inlet of the third filter 15.

[0053] The outlet of the third filter 15 is connected to the spray gun 4. So that under the pumping of the liquid supply pump 14, the cleaning liquid in the medium container 3 is pumped into the third filter 15 for filtration and then flows into the spray gun 4, and then the cleaning liquid is sprayed into the pipe fitting 5 through the spray gun 4.

[0054] As Figure 5 shown, the liquid supply device can also include an air inlet pipeline 16. The air inlet pipeline 16 is connected in parallel with the outlet of the third filter 15 and then connected to the spray gun 4. The air inlet pipeline 16 is used to access compressed gas so that the compressed gas is mixed with the cleaning liquid and then sprayed out from the spray gun 4. A pulse generator 17 is connected in the air inlet pipeline 16. Specifically, the pulse generator 17 is used to control the on-off of the compressed gas at a certain frequency so that the compressed gas forms an instantaneous high-pressure pulse. On the one hand, it is beneficial to the mixing of the compressed gas and the cleaning liquid. On the other hand, it can make the mixture of the cleaning liquid and the compressed gas scour the inner wall of the pipe fitting 5 at a higher speed and pressure, and can improve the cleaning effect.

[0055] As Figure 5As shown, the liquid supply device further includes a reflux branch 18; wherein, one end of the reflux branch 18 is connected to the outlet of the third filter 15, and the other end of the reflux branch 18 is connected to the medium container 3 and extends to the bottom of the medium container 3. A control valve 19 and a throttle valve 20 are connected in the reflux branch 18; specifically, when the supply amount of the cleaning liquid is large, the control valve 19 is opened so that a part of the cleaning liquid in the third filter 15 flows back into the medium container 3 through the reflux branch 18, and another part of the cleaning liquid in the third filter 15 is mixed with the compressed gas in the air inlet pipe 16 and then flows into the spray gun 4. Among them, the control valve 19 can be an electromagnetic valve.

[0056] As Figure 5 shown, the inlet of the liquid supply pump 14 can be connected to the medium container 3 through a liquid inlet pipe 21 and a fourth filter 22; wherein, the fourth filter 22 is arranged in the medium container 3, one end of the liquid inlet pipe 21 is connected to the fourth filter 22, and the other end of the liquid inlet pipe 21 is connected to the inlet of the liquid supply pump 14; in this embodiment, the third filter 15 is a precision filter, and the first filter 11, the second filter 13 and the fourth filter 22 are all coarse filters.

[0057] As Figures 1 to 6 shown, the pipe fitting cleaning machine can further include a frame 23, and the medium container 3 is integrated on the frame 23;

[0058] A cleaning hole communicating with the medium container 3 is provided on the frame 23, and a hole cover 24 is connected to the cleaning hole;

[0059] An air vent 25 communicating with the medium container 3 is provided on the frame 23, and an air filter 26 is connected in the air vent 25; specifically, the medium container 3 can be cleaned through the cleaning hole after removing the hole cover 24, and the air vent 25 is used to balance the air pressure inside and outside the medium container 3.

[0060] In this embodiment, the pipe fitting cleaning machine further includes a dust cover 27 for covering the cleaning tank 1 when the machine stops working, and the cleaning tank 1 is connected to the frame 23.

[0061] In summary, align the spray gun 4 with one end of the pipe fitting 5, pass the other end of the pipe fitting 5 through the shielding curtain 6 and extend it into the splash-proof box 2. The liquid supply device pumps the cleaning liquid in the medium container 3 into the spray gun 4. When the trigger of the spray gun 4 is pressed, the spray gun 4 sprays the cleaning liquid into the pipe fitting 5. The cleaning liquid flows rapidly in the pipe fitting 5 and flushes the inner wall of the pipe fitting 5, thereby realizing the cleaning of the inner wall of the pipe fitting 5. The cleaning liquid sprayed into the pipe fitting 5 by the spray gun 4 will flow out from the other end of the pipe fitting 5 into the splash-proof box 2, then the cleaning liquid in the splash-proof box 2 will flow out to the cleaning tank 1, and then the cleaning liquid in the cleaning tank 1 will flow back to the medium container 3 to realize the recycling of the cleaning liquid. Among them, the flow rate of the cleaning liquid in the pipe fitting 5 is relatively fast. When the cleaning liquid in the pipe fitting 5 flows into the splash-proof box 2 in a nearly jet-like manner, the splash-proof box 2 and the shielding curtain 6 can block the cleaning liquid sprayed from the pipe fitting 5, thereby preventing the cleaning liquid from splashing everywhere, avoiding the wet floor caused by the splashing cleaning liquid, reducing the risk of workers slipping, and improving the production environment of the workshop.

[0062] In the specific embodiments described above, the technical problems solved, technical solutions and beneficial effects of the present invention have been further described in detail. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipe fitting cleaning machine, characterized in that, It includes a cleaning tank (1), a splash-proof box (2), a medium container (3), a liquid supply device, and a spray gun (4); The liquid supply device is respectively connected to the medium container (3) and the spray gun (4) and is used to pump the cleaning liquid in the medium container (3) into the spray gun (4); The spray gun (4) is used to aim at one end of the pipe fitting (5) to be cleaned and spray the cleaning liquid into the pipe fitting (5); One side of the splash-proof box (2) is connected with a shielding curtain (6), and the other end of the pipe fitting (5) to be cleaned is used to pass through the shielding curtain (6) and then extend into the splash-proof box (2) so that the cleaning liquid sprayed into the pipe fitting (5) by the spray gun (4) flows out into the splash-proof box (2); The splash-proof box (2) is arranged in the cleaning tank (1) so that the cleaning liquid in the splash-proof box (2) flows out into the cleaning tank (1); The medium container (3) is connected to the cleaning tank (1) so that the cleaning liquid in the cleaning tank (1) flows back into the medium container (3).

2. The pipe fitting cleaning machine according to claim 1, wherein At least one layer of porous bottom plate (7) is provided at the bottom of the splash-proof box (2), and the cleaning liquid in the splash-proof box (2) flows through the porous bottom plate (7) and then flows into the cleaning tank (1).

3. The pipe fitting cleaning machine according to claim 1, characterized in that, A liquid collecting cavity (8) recessed downward is provided at the bottom of the cleaning tank (1), and the medium container (3) is connected to the liquid collecting cavity (8) in the cleaning tank (1) so that the cleaning liquid in the cleaning tank (1) converges and flows into the liquid collecting cavity (8) and then flows into the medium container (3).

4. The pipe fitting cleaning machine according to claim 3, characterized in that, A porous partition plate (9) is connected in the cleaning tank (1); The porous partition plate (9) is located above the bottom wall of the cleaning tank (1), and a drainage sandwich layer (10) is formed between the porous partition plate (9) and the bottom wall of the cleaning tank (1), and the liquid collecting cavity (8) is communicated with the drainage sandwich layer (10); The splash-proof box (2) is slidably arranged in the cleaning tank (1) and is located above the porous partition plate (9), and the splash-proof box (2) has a working position located above the liquid collecting cavity (8) during the sliding process.

5. The pipe fitting cleaning machine according to claim 3, characterized in that The medium container (3) is connected to the liquid collecting cavity (8) through a first filter (11) and a filter pipeline (12); wherein, the first filter (11) is installed in the liquid collecting cavity (8), one end of the filter pipeline (12) is connected to the first filter (11), and the other end of the filter pipeline (12) is connected to the medium container (3); The medium container (3) is also connected to the liquid collecting cavity (8) through a second filter (13); wherein, a discharge port is provided at the bottom of the liquid collecting cavity (8), the discharge port is connected to the inlet of the second filter (13), and the outlet of the second filter (13) is connected to the medium container (3).

6. The pipe fitting cleaning machine according to claim 1, wherein, The liquid supply device includes a liquid supply pump (14) and a third filter (15); The inlet of the liquid supply pump (14) is connected to the medium container (3); The outlet of the liquid supply pump (14) is connected to the inlet of the third filter (15); The outlet of the third filter (15) is connected to the spray gun (4).

7. The pipe fitting cleaning machine according to claim 6, characterized in that, The liquid supply device further includes an air inlet pipeline (16). The air inlet pipeline (16) is connected to the spray gun (4) in parallel with the outlet of the third filter (15). The air inlet pipeline (16) is used for introducing compressed gas so that the compressed gas is mixed with the cleaning liquid and then ejected from the spray gun (4). A pulse generator (17) is connected in the air inlet pipeline (16).

8. The pipe fitting cleaning machine according to claim 6, wherein, The liquid supply device further includes a return branch (18). One end of the return branch (18) is connected to the outlet of the third filter (15), and the other end of the return branch (18) is connected to the medium container (3) and extends to the bottom of the medium container (3). A control valve (19) and a throttle valve (20) are connected in the return branch (18).

9. The pipe fitting cleaning machine according to claim 6, characterized in that, The inlet of the liquid supply pump (14) is connected to the medium container (3) through a liquid inlet pipeline (21) and a fourth filter (22). The fourth filter (22) is arranged in the medium container (3). One end of the liquid inlet pipeline (21) is connected to the fourth filter (22), and the other end of the liquid inlet pipeline (21) is connected to the inlet of the liquid supply pump (14).

10. The pipe fitting cleaning machine according to claim 1, wherein, It further includes a frame (23), and the medium container (3) is integrated on the frame (23). A cleaning hole communicating with the medium container (3) is provided on the frame (23), and a hole cover (24) is connected to the cleaning hole. A ventilation port (25) communicating with the medium container (3) is provided on the frame (23), and an air filter (26) is connected in the ventilation port (25).

Citation Information

Patent Citations

  • Hydraulic pressure tubular product cleaning equipment

    CN208116316U