A service truck

Abstract

The utility model relates to a kind of maintenance tool car, belong to maintenance equipment technical field, including storage cabinet, be provided with several layers storage drawer on storage cabinet, maintenance tool is stored in storage drawer, ultrasonic cleaning drawer is set below the storage drawer in the bottom layer of storage cabinet, built-in first cleaning tank and ultrasonic transducer.When maintenance tool is contaminated with oil, dust, metal debris and other impurities after use, just put it into the cleaning tank's net bag, start ultrasonic transducer, and stubborn stains on the surface of the tool and in the gap can be cleaned using the cavitation effect of ultrasonic waves in the cleaning solution.

Description

Technical Field

[0001] This utility model belongs to the field of maintenance equipment technology, specifically the design of a maintenance tool cart. Background Technology

[0002] In industrial production, equipment maintenance (such as aircraft maintenance), construction, and various technical service sectors, maintenance work is a crucial link in ensuring the normal operation of equipment, extending its service life, and ensuring the smooth operation of production or service activities. Maintenance tools, as essential equipment for maintenance personnel, directly impact maintenance efficiency and quality due to their management, ease of use, and maintenance condition.

[0003] In the traditional model, repair tools are typically placed haphazardly in ordinary toolboxes, tool racks, or simple storage cabinets. These storage methods have several drawbacks. Firstly, the classification and placement of tools lack a systematic approach. Repair personnel often need to spend a significant amount of time searching through numerous tools when looking for a specific one, which not only reduces work efficiency but also increases the risk of operational errors due to distraction during the search. Secondly, due to the lack of effective protection, tools are susceptible to environmental factors. For example, in humid or salt-spray environments, tools are prone to rust and corrosion, thus affecting their performance and lifespan.

[0004] During the repair process, tool cleaning is often overlooked. After use, tools are often contaminated with oil, dust, metal shavings, and other impurities. If not cleaned promptly, these impurities not only accelerate tool wear and damage but can also cause secondary contamination during subsequent use, affecting repair quality. However, most existing tool storage devices lack cleaning capabilities, requiring repair personnel to find additional cleaning equipment and spaces, which undoubtedly increases the complexity and time cost of the repair work. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing maintenance tool storage devices, which mostly lack cleaning functions. Maintenance personnel need to find additional cleaning equipment and spaces to clean the tools, increasing the complexity and time cost of maintenance work. This invention provides a maintenance tool cart to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A maintenance tool cart includes a storage cabinet with several layers of storage drawers for storing maintenance tools. Below the bottom storage drawer is an ultrasonic cleaning drawer containing a first cleaning tank. Below the first cleaning tank are several ultrasonic transducers connected to a power supply unit within the storage cabinet. The bottom of the first cleaning tank has a first drain outlet with a drain valve. Below the first drain outlet is a wastewater storage tank, which is detachably connected to the ultrasonic cleaning drawer. A mesh bag is installed inside the first cleaning tank, parallel to its bottom plate. The first cleaning tank is filled with cleaning fluid.

[0007] A further improvement to this technical solution is that a hot air blower is installed on the cleaning tank above the side of the net bag. The hot air blower is connected to the outside air, and an air outlet is opened on the wall of the cleaning tank on the opposite side of the hot air blower. The air outlet is connected to the outside air.

[0008] Further improvements to this technical solution include: a maintenance personnel cleaning box is installed on the side wall of the storage cabinet; a second cleaning tank is installed inside the maintenance personnel cleaning box; several nozzles are installed on the two opposite side walls of the second cleaning tank; a liquid storage tank is installed inside the maintenance personnel cleaning box, and the liquid storage tank stores cleaning fluid; the nozzles are connected to the liquid storage tank through a first infusion pipe, and a liquid pump is installed on the first infusion pipe; a second drain outlet is provided at the bottom of the second cleaning tank, and the second drain outlet is connected to a wastewater storage tank through a second infusion pipe.

[0009] Further improvements to this technical solution include a first cabinet door on the back of the storage cabinet and a perforated hanging rack on the side of the storage cabinet away from the maintenance personnel's cleaning box.

[0010] Further improvements to this technical solution include a control cabinet installed at the top of the storage cabinet, a touch screen installed on the control cabinet, a controller installed inside the control cabinet, and a binocular camera installed above the touch screen, which is connected to the controller.

[0011] A further improvement to this technical solution is that a tool RFID reader is installed on the top of the storage cabinet to read the RFID electronic tags installed on each maintenance tool. The tool RFID reader is connected to the controller.

[0012] A further improvement to this technical solution is that a second cabinet door is provided on the side of the control cabinet away from the touch screen.

[0013] Further improvements to this technical solution include a salt spray sensor, which is installed in each storage drawer and connected to the input of the controller.

[0014] Further improvements to this technical solution include the installation of alarm light strips on both sides of the control cabinet of the binocular camera, with the alarm light strips connected to the output of the controller.

[0015] Further improvements to this technical solution include the installation of several casters at the bottom of the storage cabinet.

[0016] The beneficial effects of this utility model are as follows: Multi-layered storage drawers enable organized and categorized storage: The repair tool cart features several storage drawers, providing dedicated storage space for various repair tools. Repair personnel can scientifically categorize and store tools according to their type, purpose, size, and other characteristics. When a specific tool is needed, repair personnel can quickly locate and accurately retrieve it without blindly searching through numerous tools, greatly saving time spent searching for tools, effectively improving the efficiency of repair work, reducing downtime caused by tool searches, and ensuring that production or service activities can continue continuously and efficiently.

[0017] Perforated racks expand tool hanging space: Perforated racks are installed on the side of the storage cabinet away from the maintenance personnel's cleaning box, further expanding the tool cart's storage capacity. Tools with unusual shapes that are unsuitable for drawers, such as wrenches and screwdriver sets, can be conveniently hung on the racks. This versatile storage method makes full use of the tool cart's space, making tool storage more flexible. Maintenance personnel can adjust the hanging position of tools as needed, further improving the ease of tool retrieval.

[0018] Ultrasonic cleaning drawer for cleaning repair tools: An ultrasonic cleaning drawer is installed below the bottom drawer of the storage cabinet, containing a first cleaning tank and an ultrasonic transducer. When repair tools become contaminated with oil, dust, metal shavings, or other impurities after use, simply place them in the mesh bag of the cleaning tank, activate the ultrasonic transducer, and the cavitation effect generated by the ultrasound in the cleaning solution will clean stubborn stains on the tool surface and in crevices. Compared to traditional manual cleaning methods, ultrasonic cleaning is more efficient and thorough, effectively removing various impurities from the tool surface, preventing impurities from accelerating tool wear and damage, extending tool life, and avoiding secondary contamination of subsequent repairs, thus ensuring repair quality.

[0019] A hot air blower and air outlet work together to quickly dry tools: A hot air blower is installed on the cleaning tank above the mesh bag, and an air outlet is opened on the opposite side of the cleaning tank wall. After cleaning, the hot air blower is turned on, and hot air is quickly blown onto the tool surface, accelerating the evaporation of moisture and drying the tools quickly. This design avoids the problem of tools rusting and corroding due to prolonged dampness, ensuring that the tools are always in good working order. Maintenance personnel do not need to wait for the tools to air dry naturally; they can immediately put the cleaned and dried tools into use again, further improving the tool turnover rate and enhancing the overall efficiency of maintenance work.

[0020] The maintenance worker cleaning box meets personnel's cleaning needs: A cleaning box is installed on the side wall of the storage cabinet, containing a second cleaning tank with a spray nozzle, a liquid storage tank, and a liquid pump. After completing maintenance work, maintenance personnel may have dirt on their hands or other body parts; they can conveniently clean them in the cleaning box. The liquid pump evenly sprays the cleaning solution from the storage tank onto the cleaning area through the spray nozzle, effectively removing stains. Wastewater from cleaning is discharged into a wastewater storage tank through a second drain outlet and a second inlet pipe, and is collected and treated together with wastewater from tool cleaning, maintaining a clean working environment.

[0021] Salt spray sensors monitor the storage environment in real time: Salt spray sensors installed in each storage drawer monitor the salt spray concentration in the storage environment in real time and transmit the data to the controller. Salt spray is highly corrosive to metal tools. When the sensor detects that the salt spray concentration exceeds the set safety threshold, the controller will issue an alarm via an alarm light strip to remind maintenance personnel to take appropriate protective measures.

[0022] Furthermore, the design principle of this utility model is reliable, the structure is simple, and it has a very wide range of application prospects.

[0023] It is evident that this utility model has outstanding substantive features and significant progress compared with the prior art, and the beneficial effects of its implementation are also obvious. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural diagram of the maintenance tool cart.

[0026] Figure 2 This is a schematic diagram of the ultrasonic cleaning drawer.

[0027] 100 is the storage cabinet, 110 is the storage drawer, 111 is the slide rail, 120 is the ultrasonic cleaning drawer, 121 is the first cleaning tank, 122 is the air inlet, 123 is the air outlet, 124 is the ultrasonic transducer, 1241 is the first start / stop switch, 125 is the sewage storage tank, 126 is the net bag, 127 is the hot air blower, 1271 is the second start / stop switch, 128 is the mounting bracket, 129 is the ventilation opening, 130 is the maintenance personnel cleaning box, 131 is the second cleaning tank, 132 is the nozzle, 140 is the tool RFID card reader, 150 is the caster wheel, 200 is the control cabinet, 210 is the binocular camera, 220 is the touch screen, and 230 is the alarm light strip. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0030] like Figure 1 and Figure 2 As shown, this utility model provides a maintenance tool cart, including a storage cabinet 100, with several layers of storage drawers 110 on the storage cabinet 100. The storage drawers 110 store maintenance tools. Below the bottom storage drawer 110, there is an ultrasonic cleaning drawer 120. The ultrasonic cleaning drawer 120 has a first cleaning tank 121 inside. Below the first cleaning tank 121, there are several ultrasonic transducers 124. The ultrasonic transducers 124 are connected to a power supply component inside the storage cabinet. The bottom of the first cleaning tank 121 has a first drain outlet with a drain valve. Below the first drain outlet, there is a wastewater storage tank 125. The wastewater storage tank 125 is detachably connected to the ultrasonic cleaning drawer 120. A mesh bag 126 is provided inside the first cleaning tank 121, parallel to the bottom plate of the first cleaning tank 121. The first cleaning tank 121 is filled with cleaning fluid.

[0031] The main body of the repair tool cart provided by this utility model is a storage cabinet 100. The storage cabinet 100 adopts a high-strength alloy steel frame structure to ensure the stability of the overall structure, adapt to the handling and use needs in different work scenarios, and avoid deformation and damage due to collisions, squeezing, etc. The overall dimensions of the storage cabinet 100 are designed according to the common types and quantities of repair tools and the space constraints of actual use scenarios, ensuring sufficient storage and functional space while facilitating flexible movement in limited spaces such as factory workshops and construction sites.

[0032] The storage cabinet 100 has several storage drawers 110, totaling five drawers. Each drawer is connected by a metal slide rail 111, which is lubricated to ensure smooth, unobstructed movement and good load-bearing capacity; each drawer can support tools weighing over 20 kg. The drawer panels are covered with non-slip rubber and clearly labeled with tool categories such as "screwdrivers," "wrenches," and "pliers," facilitating quick identification and retrieval by maintenance personnel. The drawer interiors are customized with dividers and recesses based on the shape and size of different tools. For example, the screwdriver drawer has multiple circular recesses of different diameters to secure screwdrivers of varying sizes, preventing them from shifting or colliding inside the drawer.

[0033] An ultrasonic cleaning drawer 120 is installed below the bottom storage drawer 110. A first cleaning tank 121, made of stainless steel, is installed inside the ultrasonic cleaning drawer 120, featuring corrosion resistance and easy cleaning. Four ultrasonic transducers 124 are evenly arranged below the first cleaning tank 121. These transducers are tightly bonded to the bottom of the cleaning tank with high-strength adhesive and further secured with bolts to ensure stable and reliable operation. The ultrasonic transducers 124 are connected to a power supply component inside the energy storage cabinet via wires. The power supply component includes a high-frequency switching power supply with an input voltage range of 100-240V AC and an output power adjustable from 100-300W according to cleaning requirements, providing a stable and efficient power supply to the ultrasonic transducers 124 to ensure effective ultrasonic cleaning. A first start / stop switch 1241 connected to the ultrasonic transducers 124 is installed on the storage cabinet 100.

[0034] A first drain outlet with a diameter of 3 cm is located at the center of the bottom of the first cleaning tank 121. A high-precision ceramic drain valve is installed on the drain outlet, which can be manually controlled by rotating the valve body to drain water. Below the drain outlet is a wastewater storage tank 125, made of transparent polycarbonate with a capacity of 10 liters, for easy observation of the wastewater level. The storage tank and the ultrasonic cleaning drawer 120 are detachably connected via a snap-fit ​​structure. When the wastewater storage tank 125 is full, maintenance personnel can easily remove the ultrasonic cleaning drawer 120, empty the wastewater, clean it, and then reinstall it for use.

[0035] A mesh bag 126, made of woven stainless steel wire with a mesh diameter of 3 mm, is placed inside the first cleaning tank 121. This mesh bag ensures the cleaning solution flows smoothly while effectively preventing tools from falling. The mesh bag 126 is suspended parallel to the bottom plate of the first cleaning tank 121 by hooks at its four corners, 5 cm above the bottom plate. This allows the tools to fully contact the cleaning solution during cleaning while avoiding direct contact with the bottom of the tank, reducing wear. An appropriate amount of dedicated metal cleaning solution is injected into the first cleaning tank 121, with the solution level controlled at 5 cm from the rim, ensuring the tools are completely submerged for optimal cleaning results.

[0036] This utility model adopts a multi-layer storage drawer design 110, with each layer of the drawer 110 equipped with a divider and groove, achieving orderly and categorized storage of maintenance tools. Maintenance personnel no longer need to rummage through cluttered tool piles as in traditional methods; they can quickly locate and pull out the corresponding drawer based on the markings on the drawer panel to accurately retrieve the tool, significantly saving time spent searching for tools and improving maintenance efficiency. Actual testing shows that using this maintenance tool cart shortens tool retrieval time, effectively reducing downtime caused by tool searches and ensuring the continuity of production or service activities. The ultrasonic cleaning drawer 120 utilizes the cavitation effect generated by ultrasound in the cleaning fluid to penetrate deep into the tool surface and crevices, quickly removing stubborn stains such as oil, dust, and metal shavings. Compared to traditional manual cleaning methods, ultrasonic cleaning is more thorough and efficient. For tools with complex shapes and difficult-to-clean features, such as parts with internal threads and precision instruments, it can achieve comprehensive deep cleaning, effectively preventing impurities from causing wear and corrosion, extending tool life, and reducing tool procurement costs for enterprises. Meanwhile, this design avoids secondary contamination of subsequent repairs due to incomplete tool cleaning, thus improving repair quality. The wastewater storage tank 125 and the ultrasonic cleaning drawer 120 are detachably connected, allowing maintenance personnel to easily remove the tank for cleaning when it is full, preventing wastewater overflow and contamination of the work environment. Furthermore, the stainless steel first cleaning tank 121 and mesh bag 126 offer excellent corrosion resistance and stability, ensuring safety during the cleaning process and preventing safety hazards caused by corrosion from the cleaning solution or collisions with tools.

[0037] To prevent corrosion of the cleaning tools, a hot air blower 127 is installed on the cleaning tank above the mesh bag 126. An air inlet 122 is located near the cleaning tank where the hot air blower 127 is installed. Correspondingly, a ventilation opening 129 is also provided on the ultrasonic cleaning drawer 120, and a stainless steel filter screen (with a 1mm pore size, effectively filtering dust and impurities from the air to prevent them from entering the cleaning tank and contaminating the tools) is installed at the ventilation opening 129, allowing the hot air blower 127 to connect to the outside air. An air outlet 123 is opened on the cleaning tank wall opposite the hot air blower 127, connecting to the outside air. Considering the need for rapid drying of the cleaning tools and the requirement to adapt to drying conditions under different ambient temperatures and humidity levels, an 800W industrial-grade hot air blower 127 was selected. The hot air blower 127 features adjustable wind speed and temperature. The wind speed adjustment range is 0-15 m / s, and the temperature adjustment range is 30℃-80℃, allowing maintenance personnel to flexibly adjust the drying parameters according to the material and size of the tools. The hot air blower 127 is installed on the cleaning tank above the mesh bag 126 and secured with a metal mounting bracket 128. The mounting bracket 128 is made of stainless steel with a rust-proof surface treatment to ensure it will not rust or corrode in humid environments. High-strength bolts connect the bracket to the cleaning tank wall, ensuring the stability of the hot air blower 127 and preventing displacement due to vibration during operation. The air outlet 123 of the hot air blower 127 faces the tools inside the mesh bag 126, allowing hot air to directly blow onto the tool surface, improving drying efficiency. An air outlet 123 is also provided on the cleaning tank wall opposite the hot air blower 127, with rounded edges to prevent damage from tool impacts during long-term use. The filter is fixed to the air outlet 123 by a snap-on structure, which facilitates regular disassembly, cleaning and replacement. For ease of control, a second start / stop switch 1271 (a self-locking switch) is installed on the storage cabinet to control the start and stop of the hot air blower.

[0038] Tools are highly susceptible to rust and corrosion if left damp for extended periods after cleaning, affecting their performance and lifespan. The hot air blower 127 effectively dries the surface moisture of tools, keeping them consistently dry and preventing rust and corrosion caused by humid environments. This is especially important for precision metal tools such as screwdrivers and wrenches; keeping them dry ensures their accuracy and strength are not compromised, extending their lifespan.

[0039] Furthermore, a maintenance cleaning box 130 is provided on the side wall of the storage cabinet 100. A second cleaning tank 131 is installed inside the maintenance cleaning box 130. Several nozzles 132 are provided on the two opposite side walls of the second cleaning tank 131. A liquid storage tank is provided inside the maintenance cleaning box 130, and the liquid storage tank stores cleaning liquid. The nozzles 132 are connected to the liquid storage tank through a first infusion pipe, and a liquid pump is installed on the first infusion pipe. A second drain outlet is provided at the bottom of the second cleaning tank 131, and the second drain outlet is connected to the sewage storage tank 125 through a second infusion pipe.

[0040] In the central area of ​​one side wall of storage cabinet 100, a separate maintenance cleaning box 130 is constructed by welding a high-strength metal frame and installing a rust-proof steel plate. This box fits snugly against the main structure of storage cabinet 100, minimizing extra space usage while providing ample cleaning area for maintenance personnel. The outer shell of the cleaning box is made of stainless steel, a material with excellent corrosion and wear resistance, resisting the erosion of cleaning fluids and various stains, ensuring the cleaning box maintains a clean appearance and structural stability during long-term use. The inner surface of the box is polished, providing a smooth surface for easy daily cleaning and reducing dirt residue. The second cleaning tank 131 is a rectangular structure, integrally injection molded from food-grade polypropylene plastic. The bottom of the tank is slightly inclined at a 3° angle, allowing wastewater to flow quickly to the drain and preventing water accumulation. Twelve adjustable nozzles 132 are symmetrically installed on the two opposite side walls of the second cleaning tank 131, with six nozzles on each side wall. The nozzle 132 is fixed to a pre-drilled hole in the side wall by a threaded connection, which is secure and easy to disassemble and replace.

[0041] Inside the maintenance personnel cleaning tank 130, at the bottom, is a separate liquid storage tank with a capacity of 15 liters. The top of the tank has an openable, sealed cap, and a corresponding filling port for the cleaning fluid is located on the tank wall. The sealed cap is tightly fitted to the tank body with a rubber sealing ring to prevent cleaning fluid evaporation and the entry of external impurities. A transparent liquid level observation window with clear graduations is also installed on the tank body, allowing maintenance personnel to visually monitor the remaining cleaning fluid level and replenish it promptly.

[0042] A miniature diaphragm pump with a flow rate of 5 L / min and a head of 5 meters is selected as the pump. This pump is characterized by its small size, low noise, and stable operation. The pump is installed on one side of the storage tank and fixed to the metal frame of the cleaning tank with bolts. The pump inlet is connected to the bottom of the storage tank via a rubber hose to ensure sufficient extraction of cleaning fluid; the outlet is connected to the first delivery pipe to deliver the cleaning fluid to nozzle 132.

[0043] The first infusion tubing uses corrosion-resistant silicone tubing with an inner diameter of 8 mm. Its length is cut to the actual distance between the pump and nozzle 132 to ensure a tight, leak-free connection. A manual control valve and a pump switch are installed on the first infusion tubing. The manual control valve is located between the pump and nozzle 132, allowing maintenance personnel to adjust the flow rate of the cleaning solution by rotating the valve handle. The pump switch is conveniently located on the outside of the cleaning tank for easy operation, allowing maintenance personnel to easily turn the pump on or off.

[0044] The second drain outlet is located at the lowest point of the bottom of the second cleaning tank 131. It has a diameter of 2.5 cm and is equipped with a stainless steel filter screen with a mesh size of 0.5 mm. This filter screen can effectively filter out debris such as dirt particles and debris that fall during the cleaning process, preventing them from entering the drain pipe and causing blockage.

[0045] The second drain outlet is connected to the wastewater storage tank 125 via a 3-cm diameter PVC second infusion pipe. Both the second infusion pipe and the drain outlet / wastewater storage tank 125 are sealed with fittings to ensure smooth drainage and prevent leaks.

[0046] During maintenance work, maintenance personnel's hands, arms, and other parts are often contaminated with oil, dust, metal shavings, and other pollutants. The maintenance personnel cleaning box 130 in this invention provides a convenient and efficient cleaning area for maintenance personnel. Through the cleaning solution sprayed from the nozzle 132, maintenance personnel can thoroughly clean their hands and arms at any time, effectively removing stains and maintaining personal hygiene. This not only helps improve the working comfort of maintenance personnel but also prevents contaminants from being carried into other work areas or coming into contact with other tools and equipment, avoiding cross-contamination. The connection between the second drain outlet and the wastewater storage tank 125 enables centralized collection and discharge of wastewater. Wastewater from cleaning by maintenance personnel flows directly into the wastewater storage tank 125 through the drain pipe, preventing wastewater from flowing freely and polluting the working environment. The wastewater storage tank 125 can be cleaned periodically, and the wastewater is treated centrally, meeting environmental protection requirements.

[0047] In addition, some repair tools require charging or need to operate while powered on. Therefore, the corresponding storage drawer 110 for these repair tools is equipped with a power socket. Repair tools such as electric screwdrivers, electric drills, and oscilloscopes that require charging are very common in repair work. With traditional tool storage methods, if these tools run out of power, repair personnel need to spend extra time finding charging equipment, connecting to a power source, and charging before using them again. This process severely disrupts the work rhythm and causes repair tasks to stall. However, with the power sockets in the corresponding storage drawers 110 of this repair tool cart, tools can be directly placed in the drawer and connected to the socket for charging when not in use. For example, after using an electric screwdriver, a repair personnel can put it back in the drawer with the socket. The next time they take it out, the tool will be fully charged and ready for the next repair task, avoiding downtime caused by waiting for charging and enabling continuous and efficient repair work.

[0048] For maintenance tools that require live operation, such as portable multimeters and adjustable power supplies, the power socket inside storage drawer 110 provides a stable power supply. Maintenance personnel no longer need to carry external power banks or search for fixed power outlets; they can directly retrieve tools from the drawer and connect them to power to begin work on-site. This not only simplifies the operation process but also reduces troubleshooting time due to power issues, allowing maintenance personnel to focus more on the maintenance task itself and improving the smoothness and responsiveness of the maintenance work.

[0049] The storage cabinet 100 has a first cabinet door at the rear, providing maintenance personnel with an additional access channel for tools. During maintenance work, tool needs are often immediate and varied. When tools are inconvenient to access from the front or require operation from different angles, maintenance personnel can directly open the rear cabinet door to quickly obtain the necessary tools without having to go around to the front, saving time. The first cabinet door can be equipped with a safety lock. When the tool cart is not in use or placed in a public area, closing and locking the cabinet door effectively prevents tools from being stolen or touched by unauthorized personnel, avoiding damage or loss.

[0050] The storage cabinet 100, located away from the maintenance personnel cleaning box 130, features a perforated hanging rack on its side, providing an additional hanging storage method for maintenance tools. This rack can accommodate tools of various shapes and sizes, such as wrenches, screwdrivers, pliers, and measuring tools. These tools can be hung on the rack's holes using hooks or ropes, fully utilizing the vertical space on the side of the cabinet and significantly increasing storage capacity. For special tools that are unsuitable for drawers or storage compartments, such as long-handled tools or custom-made tools with hanging holes, the perforated rack provides an ideal storage location. Maintenance personnel can flexibly adjust the hanging position and method of tools on the rack according to their characteristics and actual needs, ensuring that tools are stored securely and easily accessible.

[0051] The storage cabinet 100 is equipped with several casters 150 at its bottom, allowing the maintenance tool cart to move freely on various surfaces, including flat workshop floors, slightly sloping passageways, and narrow maintenance areas. Maintenance personnel can easily move the tool cart to designated locations as needed, eliminating the need for extensive manual labor and saving both energy and time.

[0052] A control cabinet 200 is tilted at the top of the storage cabinet 100. A touch screen 220 is installed on the control cabinet 200, and a controller is installed inside the control cabinet 200. A binocular camera 210 is installed above the touch screen 220 and is connected to the controller. The controller is also connected to a memory, which stores a FaceLiveNet model and an ArcFace model. After the controller inputs a request to open the drawer through the touch screen 220, it retrieves the FaceLiveNet model from the memory to perform liveness detection on the video image information obtained by the binocular camera 210, and retrieves the IDAgeVerify model from the memory to perform identity authentication on the video image information obtained by the binocular camera 210.

[0053] Additionally, a tool RFID reader 140 is installed above the storage cabinet 100 to read the RFID electronic tags installed on each maintenance tool. The tool RFID reader 140 is connected to the controller. A second cabinet door is provided on the side of the control cabinet 200 away from the touch screen 220.

[0054] In addition, the tool cart includes salt spray sensors installed in each storage drawer 110, which are connected to the input of the controller. Alarm light strips 230 are installed on both sides of the control cabinet 200 of the binocular camera 210, and these strips are connected to the output of the controller. The salt spray sensors installed in each storage drawer 110 of the tool cart enable real-time and accurate monitoring of the salt spray concentration inside the drawers. Salt spray environments are highly corrosive to metal tools, causing rust and oxidation on the tool surface, reducing the mechanical properties and lifespan of the tools, and potentially damaging precision tools and rendering them unusable. Through continuous monitoring of salt spray concentration, the system can issue early warnings before salt spray causes substantial damage to tools. For example, in some coastal factory workshops or outdoor work environments, the salt spray content in the air may fluctuate due to weather changes. When the salt spray sensor detects a gradual increase in concentration approaching a dangerous level, the controller can react in advance, reminding maintenance personnel to take appropriate measures, such as closing the drawers, using moisture-proof sealing measures, or moving the tools to a safe area, thereby effectively preventing tool damage due to salt spray corrosion.

[0055] The working principle of this repair tool cart is as follows: After use, the repair personnel open the ultrasonic cleaning drawer, place the used repair tools into the mesh bag in the first cleaning tank, close the ultrasonic cleaning drawer, and press the first start / stop switch (using a self-locking button) to start the ultrasonic transducer to clean the repair tools. At this time, the repair personnel open the manual control valve on the first infusion tube and put their hands into the second cleaning tank to clean their dirty hands. After the repair tools have been cleaned for a period of time, the first start / stop switch is pressed again, followed by the second start / stop switch. After the repair tools have been dried by the hot air blower for a period of time, the second start / stop switch is pressed again. The repair personnel then take the cleaned and dried repair tools out of the ultrasonic cleaning drawer, attach the RFID electronic tag on the repair tools to the tool RFID reader on the storage cabinet, and then place the repair tools into the corresponding storage drawer.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A maintenance tool cart, characterized in that, The system includes a storage cabinet with several layers of storage drawers containing maintenance tools. Below the bottom storage drawer is an ultrasonic cleaning drawer containing a first cleaning tank. Below the first cleaning tank are several ultrasonic transducers connected to a power supply unit within the storage cabinet. The bottom of the first cleaning tank has a first drain outlet with a drain valve. Below the first drain outlet is a wastewater storage tank, which is detachably connected to the ultrasonic cleaning drawer. A mesh bag is installed inside the first cleaning tank, parallel to its bottom plate. The first cleaning tank is filled with cleaning fluid. A maintenance cleaning box is installed on the side wall of the storage cabinet. A second cleaning tank is installed inside the maintenance cleaning box. Several nozzles are installed on the two opposite side walls of the second cleaning tank. A liquid storage tank is installed inside the maintenance cleaning box, which stores cleaning solution. The nozzles are connected to the liquid storage tank through a first infusion pipe, and a liquid pump is installed on the first infusion pipe. A second drain outlet is installed at the bottom of the second cleaning tank, and the second drain outlet is connected to a wastewater storage tank through a second infusion pipe.

2. The maintenance tool cart according to claim 1, characterized in that, A hot air blower is installed on the cleaning tank above the side of the net bag. The hot air blower is connected to the outside air. An air outlet is opened on the wall of the cleaning tank opposite the hot air blower. The air outlet is connected to the outside air.

3. The maintenance tool cart according to claim 1, characterized in that, The storage cabinet has a first door at the back and a perforated hanging rack on the side of the storage cabinet away from the maintenance personnel's cleaning box.

4. The maintenance tool cart according to claim 1, characterized in that, The top of the storage cabinet is inclined to have a control cabinet, which has a touch screen. Inside the control cabinet is a controller, and above the touch screen is a binocular camera connected to the controller.

5. The maintenance tool cart according to claim 4, characterized in that, An RFID reader for tools is installed on the top of the storage cabinet to read the RFID electronic tags installed on each maintenance tool. The tool RFID reader is connected to the controller.

6. The maintenance tool cart according to claim 4, characterized in that, A second cabinet door is located on the side of the control cabinet away from the touch screen.

7. The maintenance tool cart according to claim 4, characterized in that, It also includes a salt spray sensor, which is installed in each storage drawer and connected to the input of the controller.

8. The maintenance tool cart according to claim 7, characterized in that, Alarm light strips are installed on both sides of the control cabinet of the binocular camera, and the alarm light strips are connected to the output of the controller.

9. The maintenance tool cart according to claim 1, characterized in that, Several casters are installed at the bottom of the storage cabinet.

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