Intelligent fan air supply device

Abstract

The utility model discloses an intelligent fan air supply device, this intelligent fan air supply device includes the case, the case is equipped with at least one air outlet, the air outlet is equipped with the connecting portion, the outer wall of connecting portion is equipped with at least one locking slot, the connecting portion is equipped with the gas pipe, and is embedded air outlet, makes the sealed structure between the gas pipe and air outlet, the outer wall of gas pipe is equipped with fastening device, is used for to the radial pressure of gas pipe conveying to the inside contraction, makes the gas pipe forms the stop retreat portion structure of inlaying in locking slot. Through fastening device to the radial pressure of gas pipe, make the gas pipe material deformation form stop retreat portion and embed the locking slot of connecting portion, thereby effectively resist external pulling force, prevent the connection of gas pipe and air outlet loose, simultaneously, the sealed structure between gas pipe and air outlet has guaranteed the air tightness, prevented gas leakage, has guaranteed the stability of air supply pressure, has improved the operation safety.

Description

Technical Field

[0001] This utility model relates to the field of air supply device technology, and in particular to an intelligent fan air supply device. Background Technology

[0002] As a type of personal protective equipment, the core function of an electrically powered air-purifying respirator is to provide workers with a clean air source that isolates them from the polluted environment. In fields such as fire fighting, chemical industry, shipbuilding, petroleum, metallurgy, warehouses, laboratories, and mines, it ensures the safety of personnel in complex and dangerous environments such as dense smoke, toxic gases, steam, or oxygen deficiency when carrying out fire fighting, disaster relief, and rescue work.

[0003] In existing technologies, the air supply unit of such respirators typically uses a blower driven by mains power (220V) or low-voltage DC (12V). This unit is directly installed inside the chassis and arranged as a whole within a pre-designated safe area. According to safety operating procedures, the distance between this air supply unit and the operator is usually limited by the effective length of the air supply pipe, generally not exceeding fifty meters. In actual application scenarios, operators need to move within a limited area, and their activities inevitably cause the air supply pipe connecting the air supply unit and the mask to get caught or entangled with surrounding equipment, structures, or other obstacles. The resulting accidental pulling force will directly act on the interface between the air supply pipe and the respirator main unit or air supply unit. Long-term or instantaneous stress concentration can easily cause the seal at the connection to fail or the structure to loosen.

[0004] Such connection failures will cause leakage of the delivered gas, resulting in a drop in gas pressure and insufficient flow at the user's breathing end, thereby compromising the positive pressure protection effect of the respirator and making it possible for external pollutants to enter the respiratory system, posing a direct threat to the personal safety of workers.

[0005] Therefore, how to improve the reliability and stability of the gas supply pipe connection structure when subjected to external tensile forces and prevent gas leakage due to loose connections is a key technical problem that urgently needs to be solved in the design of current electric air-supplying long-tube respirators. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the above-mentioned traditional background technology design and to provide a product that has a stable and reliable connection, prevents leakage, and ensures personal safety.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An intelligent fan air supply device includes a chassis, the chassis having at least one air outlet, the air outlet having a connecting portion, the outer wall of the connecting portion having at least one locking groove, the connecting portion being fitted with an air supply pipe and embedded in the air outlet, so that a sealing structure is formed between the air supply pipe and the air outlet; the outer wall of the air supply pipe is provided with a fastening device for supplying radial pressure that contracts inward on the air supply pipe, so that the air supply pipe forms a non-retracting part structure embedded in the locking groove.

[0009] Preferably, the connecting part is provided with an external threaded groove, the gas pipe is provided with an internal threaded groove and is threadedly connected to the external threaded groove, the connecting part is also threadedly connected with a protective plug, the protective plug is provided with a flexible connecting wire and is connected and fixed to the chassis.

[0010] Preferably, the air outlet is provided with a baffle ring, and the baffle ring is provided with a sealing groove that contacts the air supply pipe and forms a sealing structure.

[0011] Preferably, the fastening device includes a first clamp, a second clamp, and a fastening screw. One end of the second clamp is hinged to the first clamp, and the other ends of the first clamp and the second clamp are provided with threaded holes. The fastening screw is threaded into the threaded holes. The inner walls of the first clamp and the second clamp are provided with protrusions and tightly abut against the outer wall of the gas pipeline.

[0012] Preferably, the chassis is provided with a partition to form a first cavity and a second cavity. The first cavity is provided with a fan connected to the air outlet and a battery. The air inlet of the back panel of the first cavity is provided with a filter box.

[0013] Preferably, the second cavity is provided with a control panel and a cooling fan connected thereto. Ventilation holes are provided on both sides of the second cavity, and gas detection sensors are provided at the ventilation holes and electrically connected to the control panel.

[0014] Preferably, the control panel includes a main power indicator, an alarm, and a reset button. The control panel also has a control module for the corresponding fan, and the control module includes a fan indicator, a start / stop button, a speed adjustment button, and a mode button.

[0015] Beneficial effects:

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention applies radial force to the gas pipeline through a fastening device, causing plastic deformation of the pipeline wall material to form a stop portion. This stop portion and the locking groove of the connecting part form a mechanical interlock, thereby effectively withstanding axial tensile force and suppressing relative displacement or separation between the gas pipeline and the air outlet. At the same time, the labyrinth-type sealing mechanism set between the gas pipeline and the air outlet effectively blocks gas leakage at the interface by extending the gas leakage path and forming a local throttling effect, ensuring the stability of the internal gas pressure of the system. This design improves the tensile strength reliability of the connection structure while ensuring the airtightness of the gas supply system, providing technical support for the life safety of operators in hazardous environments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an intelligent fan air supply device according to the present invention;

[0019] Figure 2 This is a side cross-sectional view of an intelligent fan air supply device according to the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of an intelligent fan air supply device according to the present invention;

[0021] Figure 4 This is an exploded view of the air outlet interface of an intelligent fan air supply device according to this utility model;

[0022] Figure 5 This is a side cross-sectional view of the air outlet interface of an intelligent fan air supply device according to this utility model;

[0023] Figure 6 This utility model Figure 5 A partial enlarged view A of an intelligent fan air delivery device;

[0024] The correspondence between the labels and component names in the attached figures is as follows:

[0025] Reference numerals: 1. Chassis; 2. Air outlet; 3. Air supply pipe; 4. Fastening device; 5. Protective cover; 6. Partition; 7. First cavity; 8. Second cavity;

[0026] 21. Connecting part; 22. Locking groove; 23. External thread groove; 24. Retaining ring; 25. Sealing groove;

[0027] 31. Internal thread groove; 32. Anti-reverse structure;

[0028] 41. First clamp; 42. Second clamp; 43. Fastening screw; 44. Threaded hole; 45. Protrusion;

[0029] 51. Flexible connector;

[0030] 61. Fan; 62. Battery; 63. Filter cartridge;

[0031] 81. Control panel; 82. Cooling fan; 83. Ventilation vents; 84. Gas detection sensor; 85. Control module;

[0032] 811. Main power indicator light; 812. Alarm; 813. Reset button;

[0033] 851. Fan indicator light; 852. Start / Stop button; 853. Speed ​​control button; 854. Mode button. Detailed Implementation

[0034] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0037] Reference example Figures 1 to 6 A smart fan air supply device includes a housing 1, the housing 1 having at least one air outlet 2, the air outlet 2 having a connecting part 21, the outer wall of the connecting part 21 having at least one locking groove 22, the connecting part 21 being fitted with an air supply pipe 3 and embedded in the air outlet 2, so that a sealing structure is formed between the air supply pipe 3 and the air outlet 2; the outer wall of the air supply pipe 3 is provided with a fastening device 4, which is used to deliver radial pressure that contracts inward to the air supply pipe 3, so that the air supply pipe 3 forms a backstop structure 32 embedded in the locking groove 22;

[0038] A radial force is applied to the gas pipe 3 by the fastening device 4, causing plastic deformation of the pipe wall material to form a stop part. This stop part and the locking groove 22 of the connecting part 21 form a mechanical interlock, thereby effectively withstanding axial tensile force and suppressing the relative displacement or separation of the gas pipe 3 and the air outlet 2. At the same time, the labyrinth-type sealing mechanism set between the gas pipe 3 and the air outlet 2 effectively blocks gas leakage at the interface by extending the gas leakage path and forming a local throttling effect, ensuring the stability of the gas pressure inside the system. This design improves the tensile strength reliability of the connection structure while ensuring the airtightness of the gas supply system, providing technical support for the life safety of operators in hazardous environments.

[0039] It is worth mentioning that the connecting part 21 is provided with an external thread groove 23, and the air supply pipe 3 is provided with an internal thread groove 31 and is threaded to the external thread groove 23. The connecting part 21 is also threaded to a protective plug 5. The protective plug 5 is provided with a flexible connecting line 51 and is fixed to the chassis 1. The threaded connection realizes the initial positioning and pre-tightening of the air supply pipe 3 and the air outlet 2, which provides a basis for the radial locking of the subsequent fastening device 4 and avoids the axial movement of the air supply pipe 3 when radial pressure is applied. The setting of the protective plug 5 can not only protect the threads and sealing surface of the connecting part 21 from external pollution and physical damage in the non-working state, but also effectively prevent the plug from being lost during equipment transportation or storage through the fixation of the flexible connecting line 51 to the chassis 1, ensuring the integrity of key components and the ready-to-use of the system. If the air outlet 2 is not used, the protective plug 5 should be used to seal the unused air outlet 2 to prevent unfiltered air from entering the first cavity 7.

[0040] It is worth mentioning that the air outlet 2 is equipped with a baffle ring 24, and the baffle ring 24 is equipped with a sealing groove 25 that contacts the air supply pipe 3 and forms a sealing structure. The sealing structure is a labyrinth sealing structure.

[0041] It is worth mentioning that the fastening device 4 includes a first clamp 41, a second clamp 42, and a fastening screw 43. One end of the second clamp 42 is hinged to the first clamp 41, and the other ends of the first clamp 41 and the second clamp 42 are provided with threaded holes 44. The fastening screw 43 is threaded into the threaded holes 44. The inner walls of the first clamp 41 and the second clamp 42 are provided with protrusions 45, which tightly abut against the outer wall of the gas pipe 3. This fastening device 4 adopts a hinged clamp design, and compared with the traditional split clamp, its single-screw locking structure significantly improves the ease of installation and disassembly. Efficiency, especially suitable for emergency scenarios requiring rapid deployment or maintenance. The raised design on the inner wall of the clamp converts the rotational torque of the fastening screw 43 into concentrated radial pressure. This pressure acts on the wall of the gas pipe 3, causing it to undergo local plastic deformation and embed into the locking groove 22 of the connection part 21, forming a strong mechanical interlock. This design effectively separates the pre-tightening force of the threaded connection from the pull-out resistance of the mechanical lock, ensuring that the connection structure remains stable even when subjected to external accidental pulling, avoiding the risk of loosening caused by relying solely on the friction of the threads.

[0042] It is worth mentioning that the chassis 1 is equipped with a partition 6 to form a first cavity 7 and a second cavity 8. The first cavity 7 is equipped with a fan 61 connected to the air outlet 2 and a battery 62. The air inlet of the back panel of the first cavity 7 is equipped with a filter box 63. The partition 6 physically isolates the interior of the chassis 1 into the first cavity 7 and the second cavity 8, realizing functional zoning. The first cavity 7 serves as the power and air source processing unit, centrally housing the fan 61, the battery 62 and the filter box 63. This layout completely isolates the air intake path containing toxic particles from the electrical control unit, greatly reducing the risk of corrosive gases or dust eroding precision electronic components and improving the overall reliability and service life of the system. Placing the filter box 63 at the air inlet ensures that the air entering the chassis 1 is purified in the first time, protecting the safety of the downstream fan 61 and the user. The filter box 63 uses existing publicly available technology.

[0043] It is worth mentioning that the second cavity 8 is equipped with a control panel 81 and a cooling fan 82 connected to it. Ventilation holes 83 are provided on both sides of the second cavity 8. Gas detection sensors 84 are installed at the ventilation holes 83 and are electrically connected to the control panel 81. As an independent electronic control and monitoring unit, the core of the design of the second cavity 8 is to ensure the stable operation of the electrical system and the ability to sense the environment. The cooling fan 82 and the ventilation holes 83 constitute an active heat dissipation system, which dissipates the heat generated by the control module 85 when it is working in a timely manner, preventing the performance degradation or failure of electronic components due to overheating. The gas detection sensor 84 is integrated at the ventilation hole 83, which can monitor the concentration of toxic and harmful gases in the environment around the equipment in real time and feed the data back to the control panel 81. This design integrates the environmental monitoring function with the equipment body, so that the respirator can not only provide clean air, but also become an environmental safety early warning terminal for the operator, enhancing the intelligence level and active protection capability of the system.

[0044] It is worth mentioning that the control panel 81 includes a main power indicator 811, an alarm 812, and a reset button 813. The control panel 81 also has a corresponding control module 85 for the fan 61. The control module 85 includes a fan indicator 851, a start / stop button 852, a speed adjustment button 853, and a mode button 854. The main power indicator 811 and the alarm 812 provide the most basic status and abnormal warnings of the system. The reset button 813 is used to restart the system after the fault is cleared. For the fan 61 control module 85 of the core air supply unit, its integrated indicator lights, start / stop, speed adjustment, and mode buttons 854 give operators the ability to precisely adjust the air volume according to different work intensities and environmental requirements. For example, a low-speed mode can be selected to extend the battery life during low-intensity work, and a high-speed mode can be switched to obtain a higher positive breathing pressure in a high-concentration pollution environment. This refined control strategy optimizes energy efficiency and improves the adaptability of the equipment and the user experience while ensuring breathing safety.

[0045] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An intelligent fan air supply device, comprising a housing (1), wherein the housing (1) is provided with at least one air outlet (2), characterized in that: The air outlet (2) is provided with a connecting part (21), and the outer wall of the connecting part (21) is provided with at least one locking groove (22). The connecting part (21) is fitted with an air supply pipe (3) and embedded in the air outlet (2), so that a sealing structure is formed between the air supply pipe (3) and the air outlet (2). The outer wall of the air supply pipe (3) is provided with a fastening device (4) for supplying radial pressure that contracts inward to the air supply pipe (3), so that the air supply pipe (3) forms a backstop structure (32) embedded in the locking groove (22).

2. The intelligent fan air supply device according to claim 1, characterized in that: The connecting part (21) is provided with an external threaded groove (23), and the gas pipe (3) is provided with an internal threaded groove (31) and is threaded to the external threaded groove (23). The connecting part (21) is also threaded to a protective plug (5). The protective plug (5) is provided with a flexible connecting wire (51) and is connected and fixed to the chassis (1).

3. The intelligent fan air supply device according to claim 1, characterized in that: The air outlet (2) is provided with a retaining ring (24), and the retaining ring (24) is provided with a sealing groove (25) that contacts the air supply pipe (3) and forms a sealing structure.

4. The intelligent fan air supply device according to claim 1, characterized in that: The fastening device (4) includes a first clamp (41), a second clamp (42), and a fastening screw (43). One end of the second clamp (42) is hinged to the first clamp (41). The other ends of the first clamp (41) and the second clamp (42) are provided with threaded holes (44). The fastening screw (43) is threaded into the threaded holes (44). The inner walls of the first clamp (41) and the second clamp (42) are provided with protrusions (45) and are tightly abutted against the outer wall of the gas pipe (3).

5. The intelligent fan air supply device according to claim 1, characterized in that: The chassis (1) is provided with a partition (6) to form a first cavity (7) and a second cavity (8). The first cavity (7) is provided with a fan (61) connected to the air outlet (2). The first cavity (7) is also provided with a battery (62). The air inlet of the back panel of the first cavity (7) is provided with a filter box (63).

6. The intelligent fan air supply device according to claim 5, characterized in that: The second cavity (8) is equipped with a control panel (81) and a cooling fan (82) connected thereto. Ventilation holes (83) are provided on both sides of the second cavity (8). A gas detection sensor (84) is provided at the ventilation hole (83) and is electrically connected to the control panel (81).

7. The intelligent fan air supply device according to claim 6, characterized in that: The control panel (81) includes a main power indicator (811), an alarm (812), and a reset button (813). The control panel (81) is also equipped with a control module (85) corresponding to the fan (61). The control module (85) includes a fan indicator (851), a start / stop button (852), a speed adjustment button (853), and a mode button (854).

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