Negative pressure suction nozzle and pipeline cleaning device

Abstract

The utility model discloses a negative pressure suction nozzle and pipeline cleaning device which comprises a support and further comprises a concentration bin arranged on the support, and a plurality of interaction heads used for being in butt joint with negative pressure suction nozzles are arranged at the upper end of the concentration bin. The exhaust pipe is arranged at the lower end of the concentration bin and communicates with the interaction head through an interaction assembly; the vacuum pump is fixedly mounted on the bracket, and the exhaust end of the vacuum pump is connected with the exhaust pipe; and the filtering bin is arranged on the exhaust pipe, and a filtering assembly used for preventing residual impurities from flowing into the vacuum pump is arranged in the filtering bin. Through the arrangement of the filter bin, the suction pipe can be started through the vacuum pump, so that the interaction head generates suction force to suck residual impurities cleaned out of the negative pressure suction nozzle into the filter bin, and the residual impurities do not further flow towards the vacuum pump under the blocking of the filter assembly, so that the residual impurities are left in the filter bin; residual impurities can be conveniently collected and treated in a centralized mode, and the vacuum pump is protected.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically to a cleaning device with a negative pressure suction nozzle and pipeline. Background Technology

[0002] During the formation and charging process, the battery undergoes internal reactions that produce a large amount of gas. If the gas is not completely expelled, it will cause severe lithium plating and black spots on the battery interface. The gas generated during the charging process is usually removed by vacuuming. However, during the vacuuming process, the electrolyte is also drawn out along with the gas and enters the vacuum pipe. If the electrolyte accumulates in the vacuum pipe for a long time, crystallization will occur, which will lead to blockage of the vacuum pipe and affect the vacuuming effect.

[0003] To address the above issues, patent document CN112838282A, published on May 25, 2021, discloses a system and cleaning process for a lithium battery negative pressure formation system with a cleaning pipeline. Specifically, it discloses first blowing out residual liquid electrolyte from the negative pressure system using a slight positive pressure, and then reacting hot air with the lithium hexafluorophosphate crystals in the pipeline to obtain gaseous products. This effectively solves the problem of electrolyte residue and crystallization in the negative pressure pipeline after battery formation, thus ensuring the normal operation of the negative pressure system. Patent document CN218395091U, published on January 31, 2023, discloses a negative pressure formation nozzle and a negative pressure formation cleaning device. The negative pressure formation nozzle provided by this prior art can suck up waste gas and electrolyte from the battery's electrolyte inlet through the suction port, thereby reducing the phenomenon of large amounts of waste gas accumulating at the battery's electrolyte inlet during the formation process, causing electrolyte overflow and contaminating the battery surface. The prior art also specifically discloses a negative pressure formation cleaning device, the technical solution of which includes a hollow connector, the top of the connector is assembled to a negative pressure box and communicates with the negative pressure chamber, and the bottom of the connector is assembled to and communicates with a negative pressure formation nozzle, that is, it discloses the extraction of residues in the pipeline by vacuum negative pressure.

[0004] As with the prior art of the aforementioned patent, the residue in the negative pressure nozzle and the pipeline is removed by pipeline extraction. However, if the residue is not controlled or treated in the extraction pipeline, it may damage the power equipment that provides the extraction force. Therefore, there is an urgent need for a cleaning device for the negative pressure nozzle and pipeline to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a cleaning device for negative pressure suction nozzles and tubing to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cleaning device for a negative pressure suction nozzle and tubing includes a support frame, and further includes: a central chamber mounted on the support frame, with multiple interchangeable heads at its upper end for connecting to the negative pressure suction nozzle; an air extraction pipe located at the lower end of the central chamber and connected to the interchangeable heads via interchangeable components; a vacuum pump fixedly mounted on the support frame, with its extraction end connected to the air extraction pipe; and a filter chamber located on the air extraction pipe, containing a filter component to prevent residual impurities from flowing into the vacuum pump.

[0008] Preferably, the interactive component includes a diversion pipe and multiple gas storage tanks installed in the central storage compartment. The diversion pipe is connected to each gas storage tank through multiple branch pipes. The interactive head is connected to each gas storage tank in a one-to-one correspondence. The upper end of the extraction pipe is connected to the diversion pipe.

[0009] Preferably, a control valve is provided between the interaction head and the gas storage tank, and a gauge for monitoring the gas pressure inside the gas storage tank is provided on the surface wall of the centralized compartment.

[0010] Preferably, a nitrogen pump is fixedly installed on the bracket, the nitrogen pump is connected to a distribution pipe through a gas supply pipe, and a pressure gauge is installed on the gas supply pipe.

[0011] Preferably, the filter assembly includes a protrusion disposed within the filter chamber, the protrusion having an opening that connects to one end of a vacuum pump via an air extraction pipe, and a mesh plate for shielding is disposed within the opening.

[0012] Preferably, the mesh plate is height-adjustable within the opening, and its lower end is movable through the protrusion. The bottom surface of the opening is provided with a shovel block that fits against the outer side of the mesh plate. A sealing plate is hinged to the lower end of the filter chamber. The free end of the sealing plate is provided with a limiting component that limits itself to the closed filter chamber state. When the sealing plate is in the closed filter chamber state, the lower end of the mesh plate abuts against the sealing plate to be at the highest position of the lifting range.

[0013] Preferably, a stop block is provided in the opening with elastic lifting, a top block is provided on the inner side of the upper end of the mesh plate, and a lever block is provided on the upper end of the stop block near the mesh plate, which is located above the top block.

[0014] Preferably, the limiting component includes a push block that is elastically movable at the free end of the sealing plate, a hook block that slides through the sealing plate is fixedly provided on the push block, and a hook groove that matches the hook block is provided on the inner wall of the filter chamber.

[0015] In the above technical solution, the beneficial effects of this utility model are:

[0016] The cleaning device for the negative pressure nozzle and pipeline is equipped with a filter chamber. When the vacuum pump is started via the suction pipe, the interaction head generates suction to draw the residual impurities cleaned from the negative pressure nozzle into the filter chamber. Under the obstruction of the filter component, the residual impurities do not flow further into the vacuum pump and remain in the filter chamber. This facilitates the collection and centralized treatment of residual impurities, protects the vacuum pump, and improves the practicality of the device.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0018] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0021] Figure 2 This is a frontal cross-sectional structural schematic diagram provided for an embodiment of the present invention;

[0022] Figure 3 Provided for embodiments of the present invention Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a schematic diagram of the internal structure of the filter chamber provided in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Support frame; 2. Centralized chamber; 3. Interchange head; 4. Extraction pipe; 5. Vacuum pump; 6. Filter chamber; 7. Diverter pipe; 8. Branch pipe; 9. Gas storage tank; 10. Control valve; 11. Gauge; 12. Nitrogen pump; 13. Gas delivery pipe; 14. Pressure gauge; 15. Protrusion; 16. Opening; 17. Mesh plate; 18. Shovel block; 19. Sealing plate; 20. Stop block; 21. Top block; 22. Push block; 23. Push block; 24. Hook block; 25. Hook groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0027] Please see Figure 1-4 This utility model provides a cleaning device for a negative pressure suction nozzle and pipeline, including a bracket 1, and further including: a central chamber 2, which is disposed on the bracket 1 and has multiple interactive heads 3 for connecting negative pressure suction nozzles at its upper end; an air extraction pipe 4, which is disposed at the lower end of the central chamber 2 and is connected to the interactive heads 3 through interactive components; a vacuum pump 5, which is fixedly mounted on the bracket 1 and has its air extraction end connected to the air extraction pipe 4; and a filter chamber 6, which is disposed on the air extraction pipe 4 and has a filter component inside for preventing residual impurities from flowing into the vacuum pump 5.

[0028] Specifically, the support 1 is a rectangular frame, supporting the central chamber 2 at the top, making it horizontal; the upper end of the central chamber 2 is set higher than the support 1; the interaction head 3 is nozzle-shaped and can be inserted into the negative pressure suction mouth from the top; the negative pressure suction mouth is set at the lower end of the formation negative pressure pipe, and multiple ones are arranged in a row, with each interaction head 3 corresponding to a negative pressure suction mouth, and multiple interaction heads 3 are arranged in a row with intervals; the suction pipe 4 evacuates air from the interaction head 3, and then evacuates air from the negative pressure suction mouth and the formation negative pressure pipe; the interaction component is used to connect each interaction head 3 to the suction pipe 4; the vacuum pump 5 is used to cause the suction pipe 4 to generate suction; the filter chamber 6 is set in the middle of the suction pipe 4 in a cut-off manner, with each of the two opposite sides connected to a section of the suction pipe 4; the filter component in the filter chamber 6 is used to prevent residual impurities from being sucked into the filter chamber 6 through the section of the suction pipe 4 connected to the interaction head 3, and then sucked into the section of the suction pipe 4 connected to the vacuum pump 5. In practical use, when the vacuum pump 5 starts, it generates suction in the suction pipe 4, which in turn generates suction in the interaction head 3 to draw the residual impurities cleaned from the negative pressure nozzle and the negative pressure pipeline into the filter chamber 6. Then, under the obstruction of the filter assembly, the residual impurities are not further drawn into the vacuum pump 5 and remain in the filter chamber 6, which facilitates the collection and centralized treatment of residual impurities and protects the vacuum pump 5.

[0029] Compared with the prior art, the cleaning device for a negative pressure suction nozzle and pipeline proposed in this embodiment of the utility model, by setting a filter chamber 6, can be activated by the vacuum pump 5 through the suction pipe 4, so that the interaction head 3 generates suction to attract the residual impurities cleaned in the negative pressure suction nozzle into the filter chamber 6. Under the obstruction of the filter component, the residual impurities do not flow further to the vacuum pump 5, and thus remain in the filter chamber 6, which facilitates the collection and centralized treatment of residual impurities, protects the vacuum pump 5, and improves the practicality of the device.

[0030] As a preferred technical solution in this embodiment, the interactive component includes a diversion pipe 7 and multiple gas storage tanks 9 installed in the central chamber 2. The diversion pipe 7 is connected to each gas storage tank 9 through multiple branch pipes 8. The interactive head 3 is connected to each gas storage tank 9 in a one-to-one correspondence. The upper end of the extraction pipe 4 is connected to the diversion pipe 7. Specifically, the extraction pipe 4 sequentially passes through the diversion pipe 7, branch pipes 8, and gas storage tanks 9 to extract air from the interactive head 3. The gas storage tank 9 is used for nitrogen filling before extraction.

[0031] As a preferred technical solution in this embodiment, a control valve 10 is provided between the interaction head 3 and the gas storage tank 9, and a gauge 11 for monitoring the gas pressure inside the gas storage tank 9 is provided on the surface of the centralized compartment 2. Specifically, the control valve 10 is used to control the opening and closing of the gas storage tank 9 and the interaction head 3; the control valve 10 is preferably a solenoid valve; the gauge 11 is used to display the gas pressure inside the gas storage tank 9.

[0032] As a preferred technical solution of this embodiment, a nitrogen pump 12 is fixedly installed on the bracket 1. The nitrogen pump 12 is connected to the branch pipe 7 through the gas supply pipe 13. A pressure gauge 14 is installed on the gas supply pipe 13. Specifically, the nitrogen pump 12 inputs nitrogen into the branch pipe 7 through the gas supply pipe 13, and then fills the gas storage tank 9 with nitrogen through the branch pipe 8. The pressure gauge 14 is used to display the gas pressure inside the gas supply pipe 13.

[0033] The above nitrogen-filled structure includes the following functions:

[0034] Pipeline blockage detection: Using a constant-pressure nitrogen storage tank 9, with the tank open, observe the change in nitrogen pressure leakage value through the gauge 11 to determine whether the pipeline is blocked;

[0035] Pipeline cleaning operation: Nitrogen gas is used to fill the pipeline. By varying the pressure, a sound wave-like vibration is created to break up and clear the blockage crystals inside the pipeline.

[0036] Working principle: First, connect the interactive head 3 to the negative pressure nozzle; then, perform a vacuum test on the negative pressure nozzle pipeline using vacuum pump 5 to ensure correct connection. When a certain vacuum value is reached, maintain the pressure for 5-8 seconds; then, turn off vacuum pump 5 and switch to nitrogen pump 12 to fill the corresponding gas storage tank 9 with nitrogen, with a required pressure of 0.2-0.3 MPa; then, open the valve of gas storage tank 9 through control valve 10 to perform a nitrogen depressurization test, requiring the pressure to leak to 0.1-0.5 MPa within 3-5 seconds. If the pressure is 0.2 MPa, it indicates a blockage in the pipeline. To address the blockage, close the valve of the corresponding gas storage tank 9 and refill it with nitrogen, this time to 0.6-0.8 MPa. Then depressurize it to 0.1-0.2 MPa, repeating the filling and depressurization process three times for one cleaning cycle. Finally, turn off the nitrogen pump 12 and turn on the vacuum pump 5 to remove any residue from the pipeline, maintaining the vacuum for 10-20 seconds. This completes one cleaning process. The number of nitrogen cleaning cycles can be increased as needed, and the nitrogen can be heated and dried to further enhance the cleaning effect.

[0037] In another embodiment of this utility model, the filter assembly includes a protrusion 15 disposed inside the filter chamber 6. The protrusion 15 has an opening 16 that connects to one end of the suction pipe 4 and the vacuum pump 5. A mesh plate 17 for blocking is disposed inside the opening 16. Specifically, the protrusion 15 is disposed on the inner wall of the filter chamber 6. One end of the suction pipe 4 is connected to the vacuum pump 5, and the other end is connected to the filter chamber 6. The protrusion 15 corresponds to this end of the suction pipe 4, and the opening 16 is also connected to this end of the suction pipe 4. The mesh plate 17 can completely block the opening 16 to filter residual impurities.

[0038] As a preferred technical solution of this embodiment, the mesh plate 17 is vertically and vertically disposed within the opening 16, and its lower end movably penetrates the protrusion 15. A shovel block 18 is provided on the bottom surface of the opening 16 to fit the outer side of the mesh plate 17. A sealing plate 19 is hinged to the lower end of the filter chamber 6. A limiting component is provided at the free end of the sealing plate 19 to limit itself to the closed state of the filter chamber 6. When the sealing plate 19 is in the closed state of the filter chamber 6, the lower end of the mesh plate 17 abuts against the sealing plate 19 to be at the highest position of the lifting range. Specifically, a groove is provided on the inner wall of the opening 16 for the mesh plate 17 to lift and move. When the mesh plate 17 is in the highest position of the lifting range, it completely covers the opening 16. During the descent process, the outer surface of the mesh plate 17 is scraped by the shovel block 18 to be cleaned. The sealing plate 19 can be opened and closed by rotation to concentrate and discharge residual impurities. A sealing strip is provided at the position where the sealing plate 19 contacts the filter chamber 6, so that the filter chamber 6 can be sealed when the sealing plate 19 is closed.

[0039] As a preferred technical solution in this embodiment, a stop block 20 is elastically and vertically arranged inside the opening 16, and a top block 21 is arranged on the inner side of the upper end of the mesh plate 17. A lever block 22 is arranged above the top block 21 on the side of the upper end of the stop block 20 near the mesh plate 17. Specifically, the stop block 20 is used to block the opening where the suction pipe 4 connects to the opening 16. The stop block 20 is arranged to fit against the inner wall of the opening 16 connecting to the suction pipe 4. A concave hole is provided at the upper end of the stop block 20, and a spring is connected in the concave hole. The upper end of the spring is connected to the inner top surface of the opening 16, thereby keeping the stop block 20 moving downward to block the opening of the suction pipe 4. When the mesh plate 17 is abutted by the closed sealing plate 19, it is at its highest position. At this time, the mesh plate 17 is at its highest position. 7. The top block 21 keeps the upward support block 22, thereby keeping the stop block 20 in the highest position so as not to block the opening of the suction pipe 4. After the sealing plate 19 is opened, the lower end of the mesh plate 17 is not supported, and the stop block 20 automatically moves down under the elastic force to block the opening of the suction pipe 4. At the same time, the stop block 20 also presses down the top block 21 through the stop block 22, thereby moving the mesh plate 17 down to work with the scraper block 18 to clean the outer surface. In addition, the mesh plate 17 can be pulled down further to extend out of the filter chamber 6, and can also be further cleaned with a brush. Furthermore, since the suction pipe 4 is blocked by the stop block 20 at this time, the problem of dust and impurities entering the suction pipe 4 during the cleaning process will not occur.

[0040] As a preferred technical solution of this embodiment, the limiting component includes a push block 23 elastically movable at the free end of the sealing plate 19. A hook block 24 that slides through the sealing plate 19 is fixedly provided on the push block 23. A hook groove 25 matching the hook block 24 is provided on the inner wall of the filter chamber 6. Specifically, a receiving groove is provided at the free end of the sealing plate 19. The push block 23 is connected to the receiving groove by another set of springs. One end of the push block 23 extends out of the receiving groove. When the sealing plate 19 is closed, the hook block 24 hooks into the hook groove 25 from the inside of the filter chamber 6, thereby stabilizing the sealing plate 19 in the closed position. When the push block 23 is pushed, the push block 23 drives the hook block 24 to disengage from the hook groove 25, so that the sealing plate 19 can be rotated downwards to open.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cleaning device for a negative pressure suction nozzle and tubing, comprising a holder (1), characterized in that, Also include: The central warehouse (2) is arranged on the support (1), and the upper end is provided with a plurality of interaction heads (3) for docking negative pressure suction nozzle; The exhaust pipe (4) is arranged at the lower end of the central warehouse (2), and is communicated with the interaction head (3) through the interaction assembly; The vacuum pump (5) is fixedly installed on the support (1), and the exhaust end is connected with the exhaust pipe (4); The filter bin (6) is arranged on the exhaust pipe (4), and the filter assembly for preventing residual impurities from flowing into the vacuum pump (5) is arranged in the filter bin (6).

2. The cleaning device of a negative pressure suction nozzle and pipeline according to claim 1, characterized in that, The interaction assembly includes a shunt pipe (7) arranged in the central warehouse (2) and a plurality of gas storage tanks (9), the shunt pipe (7) is connected with each gas storage tank (9) through a plurality of branch pipes (8), the interaction head (3) and the gas storage tank (9) are communicated one by one, and the upper end of the exhaust pipe (4) is communicated with the shunt pipe (7).

3. The cleaning device of a negative pressure suction nozzle and pipeline according to claim 2, characterized in that, The control valve (10) is arranged between the interaction head (3) and the gas storage tank (9), and the surface wall of the central warehouse (2) is provided with a surface head (11) for monitoring the gas pressure in the gas storage tank (9).

4. The apparatus of claim 2, wherein, The nitrogen pump (12) is fixedly installed on the support (1), the nitrogen pump (12) is connected with the shunt pipe (7) through the gas conveying pipe (13), and the pressure gauge (14) is arranged on the gas conveying pipe (13).

5. The apparatus of claim 1, wherein, The filter assembly includes a convex body (15) arranged in the filter bin (6), the convex body (15) is provided with an opening (16) communicated with the exhaust pipe (4) connected with one end of the vacuum pump (5), and the opening (16) is provided with a mesh plate (17) for shielding.

6. The cleaning device of a negative pressure suction nozzle and pipeline according to claim 5, characterized in that, The mesh plate (17) is arranged in the opening (16) and the lower end is movably penetrated into the convex body (15), the bottom surface of the opening (16) is provided with a shovel block (18) abutting the outer side of the mesh plate (17), the lower end of the mesh plate (17) is abutted with the sealing plate (19) to be in the highest position of the lifting range when the sealing plate (19) is in the closed state of the filter bin (6).

7. The cleaning device of a negative pressure suction nozzle and pipeline according to claim 6, characterized in that, The opening (16) is elastically arranged with a stop block (20), the inner side of the upper end of the mesh plate (17) is provided with a top block (21), and the upper end of the stop block (20) is arranged on one side of the mesh plate (17) and provided with a push block (22) above the top block (21).

8. The cleaning device of a negative pressure suction nozzle and pipeline according to claim 6, characterized in that, The limiting assembly includes a push block (23) elastically arranged at the free end of the sealing plate (19), a hook block (24) slidingly penetrating the sealing plate (19) is fixedly arranged on the push block (23), and a hook groove (25) matched with the hook block (24) is arranged on the inner wall of the filter bin (6).

Images