Multifunctional convenient liquid oxygen filling equipment

Abstract

The application discloses a multifunctional convenient liquid oxygen filling equipment, which comprises a cabinet body, a display screen, a liquid oxygen mother tank, a filling mechanism and a control system, the display screen is arranged on the cabinet body, a support frame is arranged in the cabinet body, and the filling mechanism is arranged on the support frame; a sub-tank filling cabinet is arranged on the support frame, a sub-tank filling cavity is arranged in the sub-tank filling cabinet, and the sub-tank filling cavity is located below the filling mechanism; a sub-tank bearing table is arranged in the sub-tank filling cavity, and a sub-tank identification module is arranged on the top of the sub-tank bearing table; a weighing module is arranged at the bottom of the support frame, and the display screen, the filling mechanism, the sub-tank identification module and the weighing module are connected with the control system. The technical effects are achieved as follows: through integration of automatic identification, accurate weighing and intelligent control, unmanned self-service filling of the liquid oxygen sub-tank is realized, and the user is greatly facilitated; and the bottom installation design of the weighing module significantly improves the safety and the measurement accuracy of the filling process.

Description

Technical Field

[0001] This invention relates to the technical field of liquid oxygen filling and supply equipment, specifically to a multifunctional and convenient liquid oxygen filling device. Background Technology

[0002] In high-altitude areas, the air is thin, and as altitude increases, the partial pressure of oxygen in the air gradually decreases, making it difficult to meet the body's normal oxygen supply needs. This can easily lead to hypoxia, causing functional disorders of the body, and in severe cases, even endangering life. To address this problem, clinical practice often involves inhaling gases with a higher oxygen concentration than the air to correct hypoxia and increase arterial blood oxygen partial pressure and blood oxygen saturation.

[0003] To meet the oxygen supply needs in scenarios such as high-altitude operations, medical emergency care, and daily health maintenance, various small portable liquid oxygen tanks have been designed in the existing technology. These devices utilize the high-density storage characteristics of liquid oxygen to achieve the goal of carrying more oxygen in a small volume, making it convenient for users to carry and supply oxygen. Several small portable liquid oxygen tanks exist in existing patent documents, for example, Patent Document 1, titled: A Liquid Oxygen Storage Converter, Publication No.: CN120140636A; Patent Document 2, titled: A Portable Refillable Liquid Oxygen Supply Device, Publication No.: CN118361651A; Patent Document 3, titled: A Portable Oxygen Tank, Publication No.: CN221483342U; all of the above small liquid oxygen tanks are reusable, and their working principle is to achieve the recycling of the tank by refilling it with liquid oxygen after use. However, in practical applications, this refillable design has significant limitations: refilling liquid oxygen requires going to designated refilling stations with the appropriate qualifications and professional equipment, and being carried out by professionals. This process is not only time-consuming and labor-intensive, but also limited by the distribution of refilling stations, making it difficult for users to replenish their liquid oxygen in a timely and convenient manner after it is depleted. This greatly restricts the promotion and popularization of small liquid oxygen tanks in remote areas, outdoor operations, and home environments. Summary of the Invention

[0004] Therefore, the present invention provides a multifunctional and convenient liquid oxygen filling device to solve the above-mentioned problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] According to a first aspect of the present invention, a multifunctional and convenient liquid oxygen filling device includes a cabinet, a display screen, a liquid oxygen mother tank, a filling mechanism, and a control system. The display screen is disposed on the cabinet, a support frame is provided inside the cabinet, and the filling mechanism is disposed on the support frame.

[0007] Both the liquid oxygen master tank and the control system are housed within the cabinet, and the liquid oxygen output end of the liquid oxygen master tank is connected to the liquid oxygen input end of the filling mechanism.

[0008] The support frame is equipped with a sub-can filling cabinet, and the sub-can filling cabinet is equipped with a sub-can filling chamber, which is located below the filling mechanism; the sub-can filling chamber is equipped with a sub-can support platform, and the top of the sub-can support platform is equipped with a sub-can identification module;

[0009] The bottom of the support frame is equipped with a weighing module. The display screen, the filling mechanism, the sub-can identification module, and the weighing module are all connected to the control system. The control system is used to receive the identification information sent by the sub-can identification module and the weight information sent by the weighing module, and to control the filling mechanism to fill the sub-can according to the identification information and weight information.

[0010] Furthermore, it also includes an oxygen inhalation interface, which is located on one side of the cabinet. The gaseous oxygen output end of the liquid oxygen mother tank is connected to the oxygen inhalation interface, and the oxygen inhalation interface is equipped with an electronic control valve that is electrically connected to the control system.

[0011] Furthermore, it also includes a reheating mechanism, which is disposed on the inner wall of the sub-tank filling chamber and near the top of the sub-tank filling chamber, and the reheating mechanism is connected to the control system.

[0012] Furthermore, the reheating mechanism is a hot air blower, and the air outlet of the hot air blower is arranged facing the axis of the sub-tank support platform; the sub-tank identification module is an RFID card reader.

[0013] Furthermore, it also includes a temperature sensor, which is disposed in the sub-tank filling chamber and located near the top of the sub-tank filling chamber, and the temperature sensor is connected to the control system.

[0014] Furthermore, it also includes a seat, which is disposed on one side of the cabinet.

[0015] Furthermore, the seat is located below the oxygen inhalation port, and the seat is foldable.

[0016] Furthermore, the filling mechanism includes a lifting drive mechanism, a slide rail, a mounting base, and a filling head. The lifting drive mechanism is mounted on the support frame, the slide rail is vertically mounted on the support frame, the mounting base is slidably connected to the slide rail, the output end of the lifting drive mechanism is connected to the mounting base, and the lifting drive mechanism is connected to the control system. The lifting drive mechanism is used to drive the mounting base to move up and down along the slide rail. The filling head is mounted on the mounting base and is vertically downward, located directly above the sub-tank support platform.

[0017] Furthermore, it also includes a monitoring module, which is located on the top of one side of the cabinet.

[0018] Furthermore, the top of the cabinet is equipped with multiple hanging rings.

[0019] This invention has the following advantages: by integrating automatic identification, precise weighing and intelligent control, it realizes unmanned self-service filling of liquid oxygen sub-tanks, which greatly facilitates users and solves the problem of traditional filling requiring going to a designated location; at the same time, by monitoring leakage in real time through temperature sensors and combining the bottom installation design of the weighing module, the safety and measurement accuracy of the filling process are significantly improved. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should fall within the scope of the technical content disclosed in the present invention.

[0022] Figure 1 This is a perspective view of a multifunctional, convenient liquid oxygen filling device provided for some embodiments of the present invention.

[0023] Figure 2 This is a front view of a multifunctional, convenient liquid oxygen filling device provided for some embodiments of the present invention.

[0024] Figure 3The image shows a right view of a multifunctional, convenient liquid oxygen filling device provided in some embodiments of the present invention.

[0025] Figure 4 The left view shows a multifunctional and convenient liquid oxygen filling device provided in some embodiments of the present invention.

[0026] Figure 5 This is a schematic diagram of the filling mechanism of a multifunctional and convenient liquid oxygen filling device provided in some embodiments of the present invention.

[0027] In the diagram: 1. Cabinet, 2. Display screen, 3. Sub-tank filling cabinet, 4. Monitoring module, 5. Lifting ring, 6. Oxygen inhalation interface, 7. Seat, 8. Support frame, 9. Sub-tank filling chamber, 10. Sub-tank support platform, 11. Sub-tank identification module, 12. Reheating mechanism, 13. Temperature sensor, 14. Lifting drive mechanism, 15. Slide rail, 16. Mounting base, 17. Filling head, 18. Weighing module. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figures 1 to 5 As shown, a multifunctional convenient liquid oxygen filling device according to the first aspect of the present invention includes a cabinet 1, a display screen 2, a liquid oxygen mother tank, a filling mechanism and a control system. The display screen 2 is installed on the cabinet 1. The display screen 2 is a touch screen, used to display the operation interface to the user, start the filling process, and provide the maintenance personnel with an entry point for system settings and maintenance. A support frame 8 is provided inside the cabinet 1, and the filling mechanism is installed on the support frame 8.

[0031] Both the liquid oxygen master tank and the control system are located inside cabinet 1. The liquid oxygen master tank serves as the liquid oxygen source. The liquid oxygen output end of the liquid oxygen master tank is connected to the liquid oxygen input end of the filling mechanism. The specific structure of the liquid oxygen master tank can adopt any applicable liquid oxygen storage tank structure in the prior art. This embodiment does not describe its internal structure in detail.

[0032] The support frame 8 is equipped with a sub-tank filling cabinet 3, and the sub-tank filling cabinet 3 is equipped with a sub-tank filling chamber 9, which is located below the filling mechanism. The sub-tank filling chamber 9 is equipped with a sub-tank support platform 10, and the top of the sub-tank support platform 10 is equipped with a sub-tank positioning groove. The sub-tank positioning groove is equipped with a sub-tank identification module 11. Specifically, the sub-tank identification module 11 can be an RFID reader. By reading the microchip (RFID tag) installed at the bottom of the liquid oxygen sub-tank, it can automatically identify the presence or absence of the liquid oxygen sub-tank and obtain the unique coding information of the sub-tank, so as to realize the identification and management of the sub-tank, avoid filling incompatible sub-tanks, and improve safety.

[0033] A weighing module 18 is provided at the bottom of the support frame 8. The weighing module 18 is located at the bottom of the support frame 8 and its weighing range covers the total weight of the support frame 8, the filling mechanism, the sub-tank filling cabinet 3 and the liquid oxygen sub-tank placed on it. This design can effectively prevent the mechanical force generated by the docking of the filling head and the sub-tank from directly acting on the weighing module 18 during the filling process, thereby ensuring the accuracy and stability of the weighing data.

[0034] The display screen 2, filling mechanism, sub-tank identification module 11, and weighing module 18 are all connected to the control system. The control system receives the identification information sent by the sub-tank identification module 11 and the weight information sent by the weighing module 18, and controls the filling mechanism to fill the sub-tank according to the identification and weight information. At the same time, through the cooperation of the weighing module 18 and the sub-tank identification module 11, the control system can calculate whether there is residual liquid oxygen in the liquid oxygen sub-tank before filling and the amount of residual liquid oxygen, and then accurately calculate the amount of liquid oxygen required to fill the sub-tank, so as to avoid poor user experience due to insufficient filling or safety risks caused by liquid oxygen overflow due to overfilling.

[0035] In this embodiment, it should be noted that a temperature sensor 13 is also included. The temperature sensor 13 is installed inside the sub-tank filling chamber 9 and is located near the top of the sub-tank filling chamber 9. The temperature sensor 13 is connected to the control system and is used to detect the temperature inside the sub-tank filling chamber 9. During the filling process, if liquid oxygen leakage occurs, the leaked cryogenic liquid oxygen or gas will rapidly reduce the temperature inside the chamber. After detecting the abnormal temperature drop, the temperature sensor 13 will immediately send a signal to the control system. The control system will then trigger an alarm and stop filling, thereby effectively ensuring the safety of personnel and equipment.

[0036] Furthermore, it also includes a monitoring module 4, which is located on the top of one side of the cabinet 1. The monitoring module 4 is equipped with a network camera to monitor the operating status of the equipment and the safety of the surrounding environment. The top of the cabinet 1 is equipped with multiple lifting rings 5 ​​to facilitate hoisting operations during the installation or transportation of the equipment.

[0037] The entire filling equipment operation process is as follows: First, the user scans the QR code displayed on screen 2 with their mobile phone to enter the operation interface and start the filling process; after the equipment is verified, the corresponding sub-tank filling cabinet 3 automatically opens, and the user places the liquid oxygen sub-tank to be filled onto the support platform 10 in the sub-tank filling chamber 9; after the door is closed, the equipment automatically begins to identify, weigh and perform filling; after filling is completed, the cabinet door automatically opens, and the user can take away the filled liquid oxygen sub-tank. The whole process is highly automated and convenient to operate.

[0038] The technical effects achieved by this embodiment are as follows: by integrating automatic identification, precise weighing and intelligent control, unmanned self-service filling of liquid oxygen sub-tanks is realized, which greatly facilitates users and solves the problem of having to go to a designated location for traditional filling; at the same time, by monitoring leakage in real time through temperature sensors and combining the bottom installation design of the weighing module, the safety and measurement accuracy of the filling process are significantly improved.

[0039] Example 2

[0040] like Figures 1 to 5 As shown in the figure, another multifunctional and convenient liquid oxygen filling device provided in this embodiment has the same structure as in embodiment 1. Only the different parts are described below.

[0041] In this embodiment, to further expand the equipment's functionality, a convenient oxygen inhalation function is also integrated. Specifically, an oxygen inhalation interface 6 is provided on one side of the cabinet 1. The gaseous oxygen output end of the liquid oxygen tank is connected to the oxygen inhalation interface 6, and a pressure regulating valve is provided on the connecting pipeline to adjust the output oxygen to a pressure suitable for direct inhalation by the human body. The oxygen inhalation interface 6 is also equipped with a solenoid valve electrically connected to the control system to control the oxygen supply. The oxygen inhalation interface 6 is mainly used to provide free or billed convenient oxygen inhalation services to users with temporary oxygen inhalation needs (such as those experiencing altitude sickness, the elderly, pregnant women, etc.). For example, before use, the user needs to prepare or purchase an oxygen inhalation tube, connect the tube to the oxygen inhalation interface 6 of the equipment, and then press the corresponding oxygen inhalation button on the equipment. After receiving the instruction, the control system opens the solenoid valve, providing oxygen output for a preset duration (such as 2 to 5 minutes). The output flow rate can be set to no less than 2 liters / minute to meet emergency oxygen inhalation needs.

[0042] In this embodiment, it should be noted that a seat 7 is also included. The seat 7 is located on one side of the cabinet 1 and below the oxygen inhalation port 6. The seat 7 is foldable and can be folded up when not in use to reduce the space occupied by the equipment. When the user needs to inhale oxygen and rest, it can be unfolded for the user to sit down.

[0043] The technical effect achieved by this embodiment is as follows: by adding a convenient oxygen inhalation interface and a seat, the simple filling equipment can be upgraded into a multi-functional convenient service station that integrates self-filling and convenient oxygen inhalation. This not only meets the user's needs for sub-canister filling, but also provides convenient emergency oxygen inhalation services for the surrounding people, further enhancing the practical value and social benefits of the equipment.

[0044] Example 3

[0045] like Figures 1 to 5 As shown in the figure, another multifunctional and convenient liquid oxygen filling device provided in this embodiment has the same structure as in embodiment 1. Only the different parts are described below.

[0046] In this embodiment, considering that the liquid oxygen sub-tank (especially its filling port) is extremely cold after filling, users may suffer frostbite if they handle it directly, and the sealing components inside the filling port may shrink and deform due to prolonged exposure to low temperatures, affecting sealing performance and service life, this embodiment provides a temperature recovery mechanism 12 on the inner wall of the sub-tank filling chamber 9, near the top of the sub-tank filling chamber 9. The temperature recovery mechanism 12 is connected to the control system, which controls its start and stop.

[0047] In this embodiment, it should be noted that the reheating mechanism 12 uses a hot air blower, and the air outlet of the hot air blower is set towards the axis of the sub-tank support platform 10. When the liquid oxygen sub-tank is placed into the sub-tank filling chamber 9, the air outlet of the hot air blower is aligned with the filling port area on the top of the liquid oxygen sub-tank. After the filling operation is completed, the control system starts the hot air blower to blow hot air into the filling port of the liquid oxygen sub-tank and the surrounding area, so that the temperature of the area can be restored to room temperature or within a safe range as soon as possible.

[0048] The technical effects achieved by this embodiment are as follows: by setting the reheating mechanism 12, the filling port of the liquid oxygen sub-tank is actively reheated after filling. On the one hand, this effectively avoids users from directly contacting low-temperature components and causing frostbite, significantly improving operational safety. On the other hand, rapid reheating helps prevent the seals inside the liquid oxygen sub-tank filling port from shrinking and aging due to long-term low temperature, ensuring the sealing performance and service life of the sub-tank.

[0049] Example 4

[0050] like Figures 1 to 5 As shown in the figure, another multifunctional and convenient liquid oxygen filling device provided in this embodiment has the same structure as in embodiment 1. Only the different parts are described below.

[0051] In this embodiment, as Figure 5As shown, the filling mechanism includes a lifting drive mechanism 14, a slide rail 15, a mounting base 16, and a filling head 17. The lifting drive mechanism 14 is mounted on the support frame 8, and the slide rail 15 is vertically mounted on the support frame 8 as a guide component. The mounting base 16 is slidably connected to the slide rail 15. The output end of the lifting drive mechanism 14 is connected to the mounting base 16, and the lifting drive mechanism 14 is connected to the control system. The lifting drive mechanism 14 is used to drive the mounting base 16 to move up and down along the slide rail 15. Specifically, the lifting drive mechanism 14 can be a lifting cylinder or a motor. The filling head 17 is mounted on the mounting base 16 and is vertically downward. The filling head 17 is located directly above the sub-tank support platform 10. The position of the mounting base 16 determines the height of the filling head 17. When the mounting base 16 descends, the filling head 17 can precisely align with the filling port of the liquid oxygen sub-tank placed on the lower sub-tank support platform 10, thereby performing liquid oxygen filling.

[0052] In this embodiment, it should be noted that the filling mechanism is also equipped with a purging pipeline, which is connected to a high-pressure gas source (such as a nitrogen cylinder or the equipment's own air pump) to purge the filling port of the liquid oxygen sub-tank before filling, to remove any dust, moisture or foreign matter that may be present, and to prevent impurities from entering the sub-tank and causing pollution or safety hazards.

[0053] The technical effects achieved by this embodiment are as follows: It provides an automated filling mechanism that is compact in structure, runs smoothly, and has precise docking. Through the cooperation of the lifting drive mechanism and the slide rail, it realizes the automatic and precise docking of the filling head and the liquid oxygen sub-tank. By adding a purging pipeline, the interface is cleaned before filling, which effectively ensures the purity of the filling medium and improves the filling quality and the safety and reliability of the overall equipment.

[0054] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0055] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

Claims

1. A multifunctional and convenient liquid oxygen filling device, characterized in that, It includes a cabinet (1), a display screen (2), a liquid oxygen mother tank, a filling mechanism and a control system. The display screen (2) is installed on the cabinet (1). A support frame (8) is provided inside the cabinet (1). The filling mechanism is installed on the support frame (8). The liquid oxygen mother tank and the control system are both located inside the cabinet (1), and the liquid oxygen output end of the liquid oxygen mother tank is connected to the liquid oxygen input end of the filling mechanism. The support frame (8) is provided with a sub-can filling cabinet (3), and the sub-can filling cabinet (3) is provided with a sub-can filling chamber (9). The sub-can filling chamber (9) is located below the filling mechanism. The sub-can filling chamber (9) is provided with a sub-can support platform (10), and the top of the sub-can support platform (10) is provided with a sub-can identification module (11). The bottom of the support frame (8) is provided with a weighing module (18). The display screen (2), the filling mechanism, the sub-can identification module (11) and the weighing module (18) are all connected to the control system. The control system is used to receive the identification information sent by the sub-can identification module (11) and the weight information sent by the weighing module (18), and control the filling mechanism to fill the sub-can according to the identification information and weight information.

2. The multifunctional and convenient liquid oxygen filling device according to claim 1, characterized in that, It also includes an oxygen inhalation port (6), which is located on one side of the cabinet (1). The gaseous oxygen output end of the liquid oxygen mother tank is connected to the oxygen inhalation port (6), and the oxygen inhalation port (6) is provided with an electronic control valve that is electrically connected to the control system.

3. The multifunctional and convenient liquid oxygen filling device according to claim 1, characterized in that, It also includes a reheating mechanism (12), which is disposed on the inner wall of the sub-tank filling chamber (9) and near the top of the sub-tank filling chamber (9). The reheating mechanism (12) is connected to the control system.

4. The multifunctional and convenient liquid oxygen filling device according to claim 3, characterized in that, The reheating mechanism (12) is a hot air blower, and the air outlet of the hot air blower is set towards the axis of the sub-tank support platform (10); the sub-tank identification module (11) is an RFID reader.

5. The multifunctional and convenient liquid oxygen filling device according to claim 1, characterized in that, It also includes a temperature sensor (13), which is disposed in the sub-tank filling chamber (9) and is disposed near the top of the sub-tank filling chamber (9). The temperature sensor (13) is connected to the control system.

6. The multifunctional and convenient liquid oxygen filling device according to claim 2, characterized in that, It also includes a seat (7), which is located on one side of the cabinet (1).

7. The multifunctional and convenient liquid oxygen filling device according to claim 6, characterized in that, The seat (7) is located below the oxygen inhalation port (6), and the seat (7) is foldable.

8. The multifunctional and convenient liquid oxygen filling device according to claim 1, characterized in that, The filling mechanism includes a lifting drive mechanism (14), a slide rail (15), a mounting base (16), and a filling head (17). The lifting drive mechanism (14) is mounted on the support frame (8). The slide rail (15) is vertically mounted on the support frame (8). The mounting base (16) is slidably connected to the slide rail (15). The output end of the lifting drive mechanism (14) is connected to the mounting base (16). The lifting drive mechanism (14) is connected to the control system. The lifting drive mechanism (14) is used to drive the mounting base (16) to move up and down along the slide rail (15). The filling head (17) is mounted on the mounting base (16) and is vertically downward. The filling head (17) is located directly above the sub-tank support platform (10).

9. A multifunctional, convenient liquid oxygen filling device according to claim 1, characterized in that, It also includes a monitoring module (4), which is located on the top of one side of the cabinet (1).

10. A multifunctional, convenient liquid oxygen filling device according to claim 1, characterized in that, The top of the cabinet (1) is provided with multiple hanging rings (5).

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