Narrow area aluminum chip cleaning device

Abstract

The utility model relates to the technical field of debris cleaning, especially relates to a narrow area aluminium chip cleaning device, include: dust catcher, telescopic pipe, adsorption nozzle and camera, one end of telescopic pipe connects dust catcher, the other end connects adsorption nozzle, camera sets up in the one end of telescopic pipe with adsorption nozzle, adsorption nozzle includes outer wall, side wall and inner wall, the outer wall, side wall and inner wall enclose adsorption cavity, the length of outer wall is greater than the length of inner wall, and the width of outer wall far from telescopic pipe one end is greater than the width of near telescopic pipe one end, makes the inner contour of adsorption cavity far from telescopic pipe one end greater than the inner contour of near telescopic pipe one end. Through the aluminium chip cleaning device realizes efficient, thorough and safe aluminium chip cleaning.

Description

Technical Field

[0001] This utility model relates to the field of debris cleaning technology, and in particular to a device for cleaning aluminum debris in narrow areas. Background Technology

[0002] During the manufacturing process of high-speed trains, machining steps such as drilling and tapping generate aluminum shavings. These shavings can easily remain in structurally complex and confined areas such as inside door panels and on the back of the roof panel. These aluminum shavings may cause short circuits in electrical components due to ventilation during high-speed train operation, posing a safety hazard. Currently, aluminum shavings removal from high-speed trains mainly employs traditional methods, such as manual blowing or the use of ordinary vacuum cleaners. These methods typically require disassembling components such as partitions or ceiling panels, followed by cleaning by operators using blowers or handheld vacuum cleaners.

[0003] Ordinary vacuum cleaners use negative pressure to pick up aluminum shavings, but their simple structure makes them unsuitable for cleaning complex geometries in narrow areas. Door straps and ceiling backs refer to the concealed structures around door frames and behind ceilings inside high-speed trains; these spaces are confined and have many blind spots, making it difficult for traditional tools to effectively clean them.

[0004] Existing aluminum shavings cleaning methods have the following technical problems: First, the cleaning process requires disassembly, which is cumbersome and time-consuming, leading to increased production costs and extended manufacturing cycles; second, ordinary vacuum cleaners have limited adsorption capacity and cannot completely remove powdery aluminum shavings, slender aluminum shavings, and rolled aluminum shavings, especially leaving serious residues in narrow gaps and multi-layered structures; in addition, the lack of real-time observation capabilities results in high operational blindness and makes it difficult to guarantee consistent cleaning quality. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model embodiment is to provide an aluminum shavings cleaning device for narrow areas, so as to achieve efficient, thorough and safe aluminum shavings cleaning.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: A device for cleaning aluminum shavings in narrow areas includes: a vacuum cleaner, a telescopic tube, a suction nozzle, and a camera; one end of the telescopic tube is connected to the vacuum cleaner, and the other end is connected to the suction nozzle; the camera is disposed at the end of the telescopic tube with the suction nozzle; the suction nozzle includes an outer wall, a side wall, and an inner wall, which together form a suction cavity; the length of the outer wall is greater than the length of the inner wall, and the width of the outer wall away from the telescopic tube is greater than the width near the telescopic tube, so that the inner contour of the suction cavity away from the telescopic tube is greater than the inner contour near the telescopic tube.

[0007] Optionally, the outer wall and the inner wall are arranged opposite to each other, the side wall has two sides, which are respectively connected between the outer wall and the inner wall, and the adsorption end face of the adsorption nozzle forms an inclined surface.

[0008] Optionally, the end of the telescopic tube where the suction nozzle is mounted is provided with an inner chamfer, and the inner chamfer smoothly transitions with the inner wall surface of the suction cavity.

[0009] Optionally, the telescopic tube includes at least two sleeves, which are divided into an outer tube and an inner tube, and the outer tube and the inner tube are nested and connected.

[0010] Optionally, the sleeves of the telescopic tube are sealed together.

[0011] Optionally, the vacuum cleaner includes a charging vacuuming device and a storage box, the storage box being installed at one end of the charging vacuuming device, and the telescopic tube being installed at the end of the storage box away from the charging vacuuming device.

[0012] Optionally, a connecting tube is provided at the end of the storage box away from the charging vacuum device, and the outer wall of the connecting tube is provided with threads. A conical sealing cap is provided at the end of the telescopic tube away from the suction nozzle, and the conical sealing cap is threadedly installed on the connecting tube.

[0013] Optionally, the storage box has a storage cavity, and a filter screen is provided in the storage cavity. The filter screen is located on the air flow channel between the storage box and the charging vacuum device.

[0014] Optionally, the filter screen includes a retaining ring and a screen body. The screen body is a cylindrical structure with an opening at one end. The open end of the screen body is installed on the inner ring of the retaining ring, and the outer ring of the retaining ring is engaged in the storage cavity.

[0015] Optionally, a flexible cable is installed on the outside of the camera, and the flexible cable and the camera are tied to the outer wall of the telescopic tube by cable ties.

[0016] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages: This utility model discloses a narrow-area aluminum shavings cleaning device, comprising a vacuum cleaner, a telescopic tube, a suction nozzle, and a camera. The telescopic tube connects the vacuum cleaner and the suction nozzle, ensuring the transmission of suction power and operational flexibility. The camera, located at one end of the suction nozzle, is used to detect the distribution of aluminum shavings within the narrow area, providing visual support for the cleaning process. The suction nozzle forms a suction cavity through its outer wall, side walls, and inner wall. The length of the outer wall is greater than the length of the inner wall, creating a bevel on the suction end face of the nozzle. This facilitates the smooth entry of various aluminum shavings into the suction cavity, reducing accumulation and residue at the nozzle's edge. The width of the outer wall away from the telescopic tube is greater than the width near the telescopic tube, resulting in a larger inner contour of the suction cavity at the end away from the telescopic tube, expanding the suction range and enhancing the suction capacity for aluminum shavings. The optimized structural design of the suction nozzle, through its gradually converging internal suction cavity, creates a narrow tube effect, effectively adsorbing powdery, slender, and especially rolled aluminum shavings, achieving thorough cleaning.

[0017] Additional advantages of this invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0018] 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the spacing or dimensions between components are exaggerated to show the position of each component, and the schematic diagrams are for illustrative purposes only.

[0019] Figure 1 This is an overall schematic diagram (axonometric view and front view) of the cleaning device provided in this embodiment of the utility model. Figure 2 This is a schematic diagram of the suction nozzle provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the filter screen provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the storage box provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the telescopic tube provided in an embodiment of this utility model; Figure 6 This is a schematic diagram of the camera and flexible cable provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the charging vacuum cleaner provided in an embodiment of the present utility model; In the diagram: 1. Rechargeable vacuum cleaner; 2. Filter screen; 21. Snap ring; 22. Filter body; 3. Storage box; 31. Storage cavity; 32. Connecting tube; 4. Telescopic tube; 41. Outer tube; 42. Inner tube; 5. Flexible cord; 6. Cable tie; 7. Suction nozzle; 71. Inner wall; 72. Side wall; 73. Outer wall; 8. Camera; Detailed Implementation It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Example 1 like Figure 1 As shown, this embodiment proposes a device for cleaning aluminum shavings in narrow areas, including: a vacuum cleaner, a telescopic tube 4, a suction nozzle 7, and a camera 8; one end of the telescopic tube 4 is connected to the vacuum cleaner, and the other end is connected to the suction nozzle 7; the camera 8 is disposed at the end of the telescopic tube 4 with the suction nozzle 7; as shown... Figure 2 As shown, the suction nozzle 7 includes an outer wall 73, a side wall 72, and an inner wall 71. The outer wall 73, the side wall 72, and the inner wall 71 form a suction cavity. The length of the outer wall 73 is greater than the length of the inner wall 71, and the width of the outer wall 73 at the end away from the telescopic tube 4 is greater than the width at the end near the telescopic tube 4, so that the inner contour of the suction cavity at the end away from the telescopic tube 4 is greater than the inner contour at the end near the telescopic tube 4.

[0021] This structure utilizes the narrow tube effect through the tapered design of the suction chamber to enhance airflow speed and improve the efficiency of aluminum shavings adsorption during vacuum cleaner operation, making it particularly suitable for powdery, slender, and rolled aluminum shavings. Camera 8 provides a real-time view, guiding the suction nozzle 7 accurately into narrow areas, solving the problems of traditional cleaning tools' inability to visualize and reach dead corners. Telescopic tube 4 connects the vacuum cleaner and suction nozzle 7, forming an airflow channel that ensures aluminum shavings enter the vacuum cleaner from the suction nozzle 7 through the telescopic tube 4.

[0022] The outer wall 73 and the inner wall 71 are arranged opposite to each other, the side wall 72 has two sides, which are respectively connected between the outer wall 73 and the inner wall 71, and the adsorption end face of the adsorption nozzle 7 forms an inclined surface.

[0023] The outer wall 73 and inner wall 71 are arranged opposite each other, and together with the connection of the two side walls 72, they can ensure the structural stability of the adsorption chamber and prevent deformation of the adsorption chamber due to force during adsorption, which would affect the adsorption effect. At the same time, the bevel formed by the adsorption end face of the adsorption nozzle 7 is more regular, which can better fit the structural surface of the narrow area, increase the adsorption area, and improve the adsorption efficiency of aluminum shavings. Especially for aluminum shavings attached to the structural surface, it can make more full contact and adsorption, reducing aluminum shaving residue.

[0024] The end of the telescopic tube 4 where the suction nozzle 7 is installed is provided with an inner chamfer, and the inner chamfer smoothly transitions to the inner wall 71 of the suction cavity.

[0025] The smooth transition design between the inner chamfer and the inner wall 71 of the adsorption chamber reduces the flow resistance of aluminum chips during the adsorption process, allowing aluminum chips to enter the telescopic tube 4 more smoothly from the adsorption chamber. This avoids the accumulation of aluminum chips and blockage of the channel due to steps or sharp edges at the connection between the two, ensuring the continuity of the cleaning process and improving cleaning efficiency.

[0026] The telescopic tube 4 includes at least two sleeves, namely an outer tube 41 and an inner tube 42, which are nested together. Figure 5 As shown.

[0027] The nested connection design of multiple sleeves allows the telescopic tube 4 to flexibly adjust its length according to the depth of the cleaning area, enabling it to reach narrow areas of different depths, such as deeper partition walls and corners, thus solving the problem of not being able to adapt to cleaning areas of different depths.

[0028] The sleeves of the telescopic tube 4 are sealed together. The sealed connection can ensure the airtightness of the telescopic tube 4 and prevent outside air from entering the telescopic tube 4 through the gaps between the sleeves when the vacuum cleaner is working and generates negative pressure. This would reduce the negative pressure inside the tube and affect the adsorption force, thereby ensuring the adsorption effect of the vacuum cleaner on aluminum shavings. Especially for fine aluminum shavings, sufficient adsorption force is required to ensure that they are effectively adsorbed.

[0029] The telescopic tube 4 is made of carbon fiber, with an adjustable diameter of 5-20mm. It is lightweight, high-strength, and has good toughness. Its density is 1.6g / cm³. 3 It is 60% lighter than metal materials; with a tensile strength of 3500MPa, it can withstand a tensile force of 10kg, ensuring structural stability during long-distance extension. The flexural modulus is 230GPa, enabling controllable elastic deformation and bending deformation, with a bending angle of 0-45°; the surface is copper-plated, with a resistivity of <0.1Ω·m, which can eliminate electrostatic adsorption and avoid secondary pollution of the cleaning environment caused by secondary adsorption of aluminum shavings.

[0030] The extended telescopic tube 4 features a gradient diameter design, with the tube divided into two sections: the inner tube 42 is 5-8mm and the outer tube 41 is 8-15mm. A tapered transition section ensures smooth extension and retraction with a 15° transition angle. Utilizing the gradient diameter design of the telescopic tube 4, the length of the tube can be manually adjusted (maximum 2m), and its 45° controllable bending allows for deep cleaning of hidden areas inaccessible to traditional tools, such as partition walls, door corners, and the back of ceiling panels, enabling cleaning of internal structures of varying depths.

[0031] The vacuum cleaner uses existing technology and is obtained through external purchase, including a rechargeable vacuum cleaner device 1 (such as...). Figure 7 (as shown) and storage box 3 (as shown) Figure 4 As shown in the figure, the storage box 3 is installed at one end of the charging vacuum cleaner 1, and the telescopic tube 4 is installed at the end of the storage box 3 away from the charging vacuum cleaner 1.

[0032] The storage box 3 allows for the centralized collection and storage of aluminum shavings, preventing them from entering the rechargeable vacuum cleaner 1, reducing wear and tear on internal components, and extending the lifespan of the vacuum cleaner. The separate design of the rechargeable vacuum cleaner 1 and the storage box 3 facilitates disassembly and cleaning of the storage box 3, making operation convenient.

[0033] The rechargeable vacuum cleaner unit 1 uses a 200W brushless motor, providing a powerful suction of 21000Pa. Its dual-airflow design ensures efficient cleaning with a flow rate of up to 50L / s, capturing aluminum powder as small as 0.3μm. The compact and lightweight design makes it easy to store and allows for comfortable and long-term vacuuming without fatigue. Powered by a lithium battery (48V / 4Ah), it provides 4 hours of runtime and supports fast charging (fully charged in 1 hour). Weighing only 1.2kg, it can be easily operated with one hand. The 50mL storage box 3 can store aluminum dust from 30 cars simultaneously.

[0034] The storage box 3 has a connecting pipe 32 at the end away from the charging vacuum device 1. The outer wall 73 of the connecting pipe 32 is threaded. The telescopic tube 4 has a conical sealing cap at the end away from the suction nozzle 7. The conical sealing cap is threaded onto the connecting pipe 32.

[0035] The threaded connection ensures a more secure connection between the telescopic tube 4 and the storage box 3, preventing separation due to vibration or other factors during cleaning operations and guaranteeing the stability of the cleaning process. Simultaneously, the fluororubber sealing ring built into the conical sealing cap, in conjunction with the trapezoidal thread, achieves excellent sealing performance with a low leakage rate, ensuring the airtightness of the connection between the storage box 3 and the telescopic tube 4, preventing negative pressure loss, and guaranteeing adsorption force. This solves the problem of weak and poorly sealed connections between the traditional telescopic tube 4 and the storage box 3. Furthermore, the threaded connection facilitates the disassembly and installation of the telescopic tube 4 and the storage box 3, making future maintenance and component replacement easier.

[0036] The conical sealing cap is made of ABS plastic with a built-in fluororubber sealing ring, which is pressure-resistant to 2MPa, ensuring the sealing requirements of daily aluminum shavings vacuuming operations. The internal thread connects to the connecting pipe 32 of the storage box 3 via a threaded locking connection. It adopts a self-sealing conical thread design with a trapezoidal thread pitch of 0.5mm, forming an airtight connection after tightening, with a leakage rate of <0.1mL / min, maintaining the closed-loop efficiency of airflow purging and negative pressure adsorption.

[0037] like Figure 1 As shown, the storage box 3 has a storage cavity 31, and a filter screen 2 is provided in the storage cavity 31. The filter screen 2 is located on the air flow channel between the storage box 3 and the charging dust collection device 1.

[0038] The filter 2 filters the air drawn into the storage box 3, blocking aluminum shavings within the storage cavity 31. This prevents aluminum shavings from entering the rechargeable vacuum cleaner 1 with the airflow, thus preventing wear or blockage of internal components and ensuring the normal operation and extended lifespan of the rechargeable vacuum cleaner 1. Simultaneously, the filter 2 concentrates aluminum shavings within the storage cavity 31, facilitating subsequent recycling and cleaning. Furthermore, the filter 2 is washable and reusable, reducing operating costs and meeting environmental protection requirements.

[0039] like Figure 3 As shown, the filter screen 2 includes a retaining ring 21 and a screen body 22. The screen body 22 is a cylindrical structure with an opening at one end. The open end of the screen body 22 is installed on the inner ring of the retaining ring 21, and the outer ring of the retaining ring 21 is engaged in the storage cavity 31.

[0040] The snap ring 21 ensures that the filter 2 is securely installed within the storage cavity 31, preventing displacement or shaking under airflow and ensuring stable filtration performance. The cylindrical mesh body 22 increases the filtration area and improves filtration efficiency, allowing for more thorough filtration of aluminum shavings in the air and reducing the probability of fine aluminum shavings entering the rechargeable vacuum cleaner 1 through the filter 2. Simultaneously, the snap-fit ​​installation method facilitates the removal and installation of the filter 2, making cleaning or replacement convenient and time-saving, thus solving the problems of insecure installation and inconvenient disassembly of traditional filter 2s.

[0041] like Figure 1 , Figure 6 As shown, a flexible cable 5 is installed on the outside of the camera 8, and the flexible cable 5 and the camera 8 are tied to the outer wall 73 of the telescopic tube 4 by a cable tie 6.

[0042] The cable ties 6 securely fasten the camera 8 and the flexible cable 5 to the outer wall 73 of the telescopic tube 4, preventing the camera 8 from shifting or the cable 5 from becoming tangled during cleaning operations due to the extension or bending of the telescopic tube 4. This ensures that the camera 8 can stably observe the aluminum shavings in narrow areas, guaranteeing the accuracy of the cleaning operation. Furthermore, this fixing method is simple to operate, allowing for easy adjustment of the camera 8's installation position to obtain the optimal viewing angle. In addition, the cable 5 ensures that the camera 8's signal transmission is unaffected by the extension and bending of the telescopic tube 4, guaranteeing signal transmission stability.

[0043] Camera 8 uses a high-definition industrial-grade endoscope, transmitting signals via a 2-meter flexible cable 5. It can be secured to the telescopic tube 4 using cable ties 6 or heat shrink tubing to guide the tube during aluminum shavings cleaning and vacuuming operations. Camera 8 has eight built-in LED lights, 1200P high-definition image quality, and can detect the interior of dark and narrow spaces. It can view, take photos, and record videos, all of which can be operated via a mobile phone.

[0044] This aluminum shavings cleaning device simplifies the cleaning process in standard high-speed train production, addressing the challenge of cleaning aluminum shavings in difficult-to-reach areas. Integrating lighting, imaging, and vacuuming, it uses a retractable hollow tube to solve the problem of cleaning aluminum shavings from extremely hard-to-reach areas such as inside door panels and on the back of ceiling panels. This device saves significant construction time previously required for disassembling and vacuuming partitions and ceiling panels, allowing for single-person operation. It enables easy, convenient, fast, and visualized cleaning of aluminum shavings in difficult-to-reach areas, preventing accidents caused by aluminum shavings leaving behind or blowing away, thus avoiding short circuits and ensuring train safety. This achieves multiple goals: high quality, safety, and high efficiency.

[0045] How to use: Phase 1: System Preparation.

[0046] 1. Equipment Assembly (1 minute): Select a carbon fiber tube, tighten the conical sealing cap to form the telescopic tube 4. Use cable ties 6 to secure the camera 8 and the flexible cable 5 to the side of the telescopic tube 4. Press the filter 2 inside. Tighten the conical sealing cap of the telescopic tube 4 to the connecting tube 32 of the storage box 3. Seal the storage box 3 to the charging vacuum cleaner 1 using a rotating buckle and lock it in place. Connect the flat wide suction nozzle 7 to the telescopic tube 4. Connect the camera 8 (Type-C interface) to the mobile phone.

[0047] 2. Parameter Settings: Open your phone's settings and enable the OTG function. Enter the mobile app, select USB-CAMERA, and then click the START button on the screen to begin image transfer. Adjust the light intensity to a suitable level using the endoscope's illumination knob.

[0048] Phase 2: Cleanup.

[0049] 1. Insertion and scanning (2-3 minutes): Manually push the telescopic tube 4 into the target area and view the endoscope image in real time through the APP.

[0050] 2. Aluminum shavings cleaning (3-5 minutes): Turn on the vacuum cleaner button on the charging vacuum cleaner 1 and use your mobile phone screen to vacuum and clean the area with dense aluminum shavings.

[0051] Phase 3: Validation and Maintenance of Results.

[0052] 1. Waste recycling (1-2 minutes): Press the release button on storage box 3, remove the filter element and wash it with water. Aluminum shavings are collected and recycled in accordance with GB5085.3 hazardous waste standards.

[0053] 2. Equipment maintenance: Wipe the camera lens with an alcohol swab and check the integrity of the coating on the carbon fiber tube surface.

[0054] The following advantages are available for cleaning aluminum shavings using this cleaning device: 1. Technical advantages: (1) This cleaning device can quickly remove aluminum shavings from the door strip. Compared with the traditional method of disassembling the partition wall and ceiling and cleaning or blowing the interior, this cleaning device can complete the cleaning task in a shorter time, significantly improving cleaning efficiency.

[0055] (2) In the complex structure of the door strip, traditional methods may only be able to clean the surface aluminum shavings. This cleaning device is designed with a special cleaning mechanism to address the problem of cleaning small aluminum shavings in the narrow space inside the door strip. Through the telescopic tube 4, the built-in high-definition camera 8, and the adjustable light source, it can penetrate into the gaps and dead corners of the narrow space and complex structure to thoroughly remove aluminum shavings residue that are difficult to reach by traditional methods.

[0056] (3) At the far end of the extension rod, a flat and wide suction nozzle 7 is added to remove aluminum shavings. The unique flat and wide suction nozzle 7 design generates a narrow tube effect through the gradually converging suction cavity inside, and on the premise of the original suction force, a larger through hole suction force is superimposed to collect aluminum shavings.

[0057] 2. Advantages in terms of security: (1) This cleaning device effectively avoids the problem of short circuit of electrical components caused by aluminum residue during train operation by thoroughly removing aluminum shavings, and significantly improves the safety of train operation.

[0058] (2) High-speed rail standard EMUs have extremely high safety requirements. This cleaning device solves the problem of aluminum shavings residue, ensuring the stability and reliability of the train during high-speed operation, and fully meets the safety and quality standards of high-speed rail.

[0059] 3. Economic advantages: (1) This cleaning device improves cleaning efficiency by simplifying the aluminum shavings cleaning process, reducing the time and cost of manual cleaning, and at the same time reducing the rework cost caused by quality problems due to aluminum shavings residue.

[0060] (2) There are precision electrical appliances and equipment such as door control switch and inner door mechanism above the inner end partition wall, and electrical components such as ring light power controller on the back of the top plate. This cleaning device avoids equipment maintenance or replacement costs caused by aluminum chips short-circuiting electrical components by thoroughly cleaning aluminum chips.

[0061] 4. Advantages in terms of efficiency: (1) This cleaning device simplifies the aluminum chip cleaning process and reduces the time of cleaning aluminum chips, thereby shortening the overall production cycle of EMU manufacturing and improving production efficiency.

[0062] (2) This cleaning device can be seamlessly integrated with the production line to realize the automation and continuity of the cleaning process, and avoid the overall production progress being affected by the delay of the cleaning process.

[0063] 5. Advantages in terms of applicability: (1) This cleaning device is designed with a special cleaning scheme for the interlayer and other structures of the door strip, which can meet the cleaning needs of aluminum chips of different shapes, sizes and positions.

[0064] (2) The technical principle and device design of this cleaning device can be applied to other similar scenarios, such as aviation and automobile manufacturing, and has broad application prospects.

[0065] 6. Environmental and health benefits: (1) This cleaning device reduces the spread of aluminum shavings during the manufacturing process and reduces the pollution of the working environment by aluminum shavings through efficient cleaning methods.

[0066] (2) This cleaning device reduces the chances of workers coming into contact with aluminum shavings through automated cleaning, and reduces the health risks of workers inhaling aluminum shavings, coming into contact with aluminum shavings through skin, and aluminum shavings flying into their eyes.

[0067] 7. Advantages in terms of quality and reliability: (1) This cleaning device ensures that the aluminum shavings cleaning effect on the walls, layers and back of the roof of each EMU is consistent through a standardized and simplified cleaning process, avoiding quality fluctuations caused by differences in manual cleaning.

[0068] (2) This cleaning device reduces the risk of quality accidents caused by aluminum shavings residue by thoroughly cleaning aluminum shavings, and improves the reliability of the product and user satisfaction.

[0069] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A device for cleaning aluminum shavings in a narrow area, characterized in that, include: Vacuum cleaner, telescopic hose, suction nozzle, and camera; One end of the telescopic tube is connected to a vacuum cleaner, and the other end is connected to a suction nozzle. The camera is located at the end of the telescopic tube with the suction nozzle. The suction nozzle includes an outer wall, a side wall, and an inner wall, which together form an suction cavity. The length of the outer wall is greater than the length of the inner wall, and the width of the outer wall at the end away from the telescopic tube is greater than the width at the end near the telescopic tube, so that the inner contour of the suction cavity at the end away from the telescopic tube is greater than the inner contour at the end near the telescopic tube.

2. The aluminum shavings cleaning device for narrow areas as described in claim 1, characterized in that, The outer wall and inner wall are arranged opposite each other, the side wall has two sides, which are respectively connected between the outer wall and the inner wall, and the adsorption end face of the adsorption nozzle forms an inclined surface.

3. The aluminum shavings cleaning device for narrow areas as described in claim 1, characterized in that, The end of the telescopic tube where the suction nozzle is installed is provided with an inner chamfer, and the inner chamfer smoothly transitions with the inner wall surface of the suction cavity.

4. The aluminum shavings cleaning device for narrow areas as described in claim 1, characterized in that, The telescopic tube includes at least two sleeves, which are divided into an outer tube and an inner tube, and the outer tube and the inner tube are nested and connected.

5. The aluminum shavings cleaning device for narrow areas as described in claim 4, characterized in that, The sleeves of the telescopic tube are sealed together.

6. The aluminum shavings cleaning device for narrow areas as described in claim 1, characterized in that, The vacuum cleaner includes a charging vacuuming device and a storage box. The storage box is installed at one end of the charging vacuuming device, and the telescopic tube is installed at the end of the storage box away from the charging vacuuming device.

7. The aluminum shavings cleaning device for narrow areas as described in claim 6, characterized in that, The storage box has a connecting tube at the end furthest from the charging vacuum device, and the outer wall of the connecting tube has threads. The telescopic tube has a conical sealing cap at the end furthest from the suction nozzle, and the conical sealing cap is threaded onto the connecting tube.

8. The aluminum shavings cleaning device for narrow areas as described in claim 6, characterized in that, The storage box has a storage cavity, and a filter screen is installed in the storage cavity. The filter screen is located on the air flow channel between the storage box and the charging vacuum device.

9. The aluminum shavings cleaning device for narrow areas as described in claim 8, characterized in that, The filter screen includes a retaining ring and a screen body. The screen body has a cylindrical structure with an opening at one end. The open end of the screen body is installed on the inner ring of the retaining ring, and the outer ring of the retaining ring is engaged in the storage cavity.

10. The aluminum shavings cleaning device for narrow areas as described in claim 1, characterized in that, A flexible cable is installed on the outside of the camera, and the flexible cable and the camera are tied to the outer wall of the telescopic tube with cable ties.

Images