A refueling mistake prevention device

Abstract

The utility model discloses a kind of oiling mistake-proofing devices, comprising: oil product supply tank, its oil outlet is provided with electric valve body;Special oil can, be set below the oil outlet of the oil product supply tank, inductive sheet is set on its lateral wall, the recessed hole of only position is opened in the inductive sheet;Mistake-proofing sensor is used to detect the recessed hole position;Control cabinet, controller, card swiping device, time relay and intermediate relay are arranged in its interior;Among them, the control cabinet is electrically connected with the electric valve body and the mistake-proofing sensor respectively.This application is detected by the physical recessed hole design of special oil can and mistake-proofing inductor, combined with card swiping authority control and time relay automatic shutdown, realize physical and logic double mistake-proofing.The application has simple structure, safe operation, mistake-proofing reliable, and can effectively avoid equipment failure caused by oil product filling error.

Description

Technical Field

[0001] This utility model relates to the field of refueling control technology for industrial equipment, specifically a refueling error prevention device. Background Technology

[0002] In industrial production, oil depots typically store various types of hydraulic oil, lubricating oil, and cooling oil. Due to the wide variety of oil types and their similar appearances, operators are prone to selecting the wrong oil during the refilling and dispensing process. Adding the wrong oil to equipment can lead to poor lubrication, hydraulic system malfunctions, reduced cooling efficiency, and even equipment damage, severely impacting production safety and equipment lifespan.

[0003] Currently, common error-proofing methods mainly rely on manual labeling or simple electronic records, but the possibility of human error still exists. Therefore, there is an urgent need for an automated system with both physical and logical error-proofing mechanisms to ensure the accuracy and safety of fluid filling. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a refueling error prevention device, comprising: The oil supply tank is equipped with an electric valve at its oil outlet. A special oil container is installed below the oil outlet of the oil supply tank, and a sensor plate is installed on its side wall. The sensor plate has a unique recessed hole. Error-proofing sensor for detecting the position of the recess; The control cabinet contains a controller, a card reader, a time relay, and an intermediate relay. The control cabinet is electrically connected to the electric valve body and the error-proof sensor, respectively.

[0005] Furthermore, the refueling error prevention device also includes a mounting bracket, which has an upper support platform and a lower support platform. The oil supply tank is mounted on the upper support platform, and the special oil can is mounted on the lower support platform.

[0006] Furthermore, the oil supply tank is tilted and the oil outlet is located at the bottom.

[0007] Furthermore, a sensor bracket is also provided on the lower support platform, and the error-proof sensor is fixedly installed on the sensor bracket and non-contactly aligned with the concave hole of the special oil can.

[0008] Furthermore, the lower support platform is provided with a positioning groove for placing the special oil can.

[0009] The advantages of this application are: the provided refueling error prevention control device achieves dual error prevention through physical and logical means by combining the physical recess design of the special oil can and the position detection of the error prevention sensor with card swiping permission control and automatic shutdown of the time relay; the invention has a simple structure, is safe to operate, and has reliable error prevention, and can effectively avoid equipment failure caused by incorrect oil filling. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of one embodiment of the refueling error prevention control device of this application.

[0011] The following are marked in the diagram: 10. Mounting bracket, 101. Upper support platform, 102. Lower support platform, 11. Oil supply tank, 111. Oil outlet, 12. Oil can, 13. Electric valve body, 14. Sensor bracket, 15. Error-proof sensor, 16. Induction plate, 17. Control cabinet. Detailed Implementation

[0012] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0013] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0014] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0015] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0016] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] See Figure 1 This embodiment provides a refueling error prevention device, including a mounting bracket 10. The mounting bracket 10 has an upper support platform 101 and a lower support platform 102. An oil supply tank 11 is provided on the upper support platform 101, and a special oil can 12 is placed on the lower support platform 102.

[0019] Specifically, the oil supply tank 11 is inclined downwards, and an oil outlet 111 is set at its bottom. An electric valve body 13 is set on the oil outlet 111 to control the opening and closing of the oil outlet. The electric valve body is a YYZK-F21B type DC electric ball valve, whose main technical parameters are: working voltage DC12~24V, protection level IP65, nominal diameter DN25, and output torque 8Nm.

[0020] To check whether the special oil can 12 is correct, a sensor bracket 14 is set on the lower support platform 102. A mistake-proof sensor 15 is set on the sensor bracket 14. The mistake-proof sensor 15 is a cylindrical proximity switch, specifically an Omron E2B-M12KS04-WZ-C1 / B1 type cylindrical proximity sensor (PNP normally open type), which is tightly screwed into the pre-machined mounting hole on the bracket by its own thread.

[0021] In addition, a sensor plate 16 is provided at the bottom of the side wall of the special oil can 12. The sensor plate 16 has a unique recess. Since there are many oil products, the position of the recess in each oil can is different. The size of the recess matches the size of the sensor head. In addition to the different positions of the recess, the height and angle of the recess in the circumferential direction can also be set to be different, thereby forming a physical key.

[0022] Above the oil supply tank 11, a control cabinet 17 is mounted on a bracket. The control cabinet 17 contains a controller, a card reader, a time relay, and an intermediate relay. The cabinet is a standard industrial control cabinet, and its front door is fitted with a panel for the card reader (model H5C waterproof access control card reader panel) for operator identification and authorization. The time relay uses a dual-channel delay time relay module (model such as YF-38) to precisely control the opening duration of the electric valve. The intermediate relay uses a JQX-13F(D) type general-purpose relay to amplify the control signal and drive the electric valve.

[0023] In practical applications, multiple refueling error-proofing devices of this application are placed side-by-side for storing and retrieving different types of oil. When a specific type of oil needs to be retrieved, a dedicated 10L stainless steel oil container is placed on the lower support platform according to the required oil. The lower support platform can be equipped with a positioning groove adapted to the shape of the oil container's bottom for initial positioning. When the oil container is in place, the recessed hole on the side wall of the container must be precisely aligned with the sensing head of the error-proofing sensor. If the wrong oil container is selected, the recessed hole position will not match, the sensor will not detect a valid signal, and the system logic will judge it as "placement error." Even if a card is swiped subsequently, the system will not respond. After physical error-proofing is successful, the operator swipes a card on the card reader panel of the control cabinet. The controller reads the card information and verifies whether the card has the authority to operate the electric valve corresponding to the current oil. This authority is uniquely bound in the system. The controller will only trigger an action when both the "oil container is placed correctly" and the "card swiping authority is correct" conditions are met simultaneously. It first sends a command to the time relay, which then starts timing (e.g., preset to 10 seconds). At the same time, it drives the corresponding electric valve to open via the intermediate relay, allowing oil to flow into the dedicated oil reservoir. When the time relay reaches the preset 10-second timing, it automatically cuts off the output signal, the intermediate relay is de-energized, the electric valve closes, and oil discharge stops.

[0024] This invention utilizes a unique recessed hole in a dedicated oil reservoir and a sensor in a fixed position to form a mechanical coding identification structure, achieving mandatory physical error prevention. This physical verification, combined with electrical logic verification based on access cards, constitutes a double-interlocked safety mechanism. The entire system is compact, easy to install, and has a clear operating procedure, greatly improving the accuracy and safety of oil filling and effectively preventing equipment failures caused by incorrect oil selection.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A refueling error prevention device, characterized in that, include: The oil supply tank is equipped with an electric valve at its oil outlet. A special oil container is installed below the oil outlet of the oil supply tank, and a sensor plate is installed on its side wall. The sensor plate has a unique recessed hole. Error-proofing sensor for detecting the position of the recess; The control cabinet contains a controller, a card reader, a time relay, and an intermediate relay. The control cabinet is electrically connected to the electric valve body and the error-proof sensor, respectively.

2. The refueling error prevention device according to claim 1, characterized in that: The refueling error prevention device also includes a mounting bracket, which has an upper support platform and a lower support platform. The oil supply tank is installed on the upper support platform, and the special oil can is installed on the lower support platform.

3. The refueling error prevention device according to claim 2, characterized in that: The oil supply tank is tilted and the oil outlet is at the bottom.

4. The refueling error prevention device according to claim 2, characterized in that: A sensor bracket is also provided on the lower support platform. The error-proof sensor is fixedly installed on the sensor bracket and is non-contactly aligned with the concave hole of the special oil can.

5. A refueling error prevention device according to claim 2, characterized in that: The lower support platform is provided with a positioning groove for placing the special oil can.

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