Rotary trigger type gas cylinder quick on-off device

Abstract

The utility model provides a kind of rotary trigger formula gas cylinder quick on-off device, it is related to gas supply technical field, including gas cylinder assembly, installation cylinder subassembly and switch subassembly.Rotary handle, screw transmission mechanism converts rotary motion into the axial linear motion of gas cylinder assembly.This motion drives self-sealing quick female joint and quick male joint to engage or separate, to realize the communication and disconnection of the gas passage inside two. Meanwhile, switch trigger plate follows and triggers or disconnects switch, and the electric signal indicating gas circuit state is generated synchronously.The device innovatively integrates mechanical transmission, gas circuit control and state monitoring, converts handle rotation into axial motion using screw transmission, drives joint on-off and synchronously triggers switch, realizes gas circuit state linkage monitoring.It has the outstanding advantages of compact structure, easy operation, realizes the linkage of gas circuit on-off and state detection, fast response and high safety.

Description

Technical Field

[0001] This utility model relates to the field of gas supply technology, and more specifically, to a rotary trigger type quick-connect and disconnect device for gas cylinders. Background Technology

[0002] Gas cylinders, as a key carrier of gas supply, are widely used in medical, industrial, and scientific research fields. Traditional gas cylinder connections to equipment often rely on threaded valves, which are cumbersome to operate, time-consuming to install, and prone to thread wear or seal failure leading to leaks due to frequent disassembly and assembly. To address these issues, existing technologies have developed quick-connect devices utilizing snap-fit ​​or spring principles. For example, some patents disclose the use of clamp-type robotic arms or push-plate mechanisms to assist in insertion and removal, thus improving connection efficiency to some extent.

[0003] Chinese Patent Publication No. CN106764415A discloses a quick-connect fitting device, method, and high-pressure gas source equipment for high-pressure gas cylinders. This device and method utilize a clamp-type robotic arm structure to achieve labor-saving and safe insertion and removal of high-pressure gas cylinder quick-connect fittings, improving assembly efficiency. Furthermore, since direct contact with the male and female connectors is eliminated, it effectively reduces safety hazards caused by gas leakage from high-pressure cylinders. Chinese Patent Publication No. CN106224773A discloses a quick-connect auxiliary device for high-pressure gas cylinders. This device secures the cylinder using a V-shaped cylinder base and a locking device. It utilizes a push plate and compression spring mechanism to achieve quick one-handed connection and separation of the male and female connectors, offering labor-saving and convenient operation. However, the connection process relies on multiple manual operations, making the operation steps cumbersome. Moreover, the device has a loose structure, numerous parts, a large size, and occupies significant space, failing to meet the stringent requirements of modern miniaturized instruments and equipment for high integration, ease of operation, and rapid response.

[0004] However, existing rapid connection technologies for gas cylinders still have significant shortcomings: First, the devices are loosely structured, have numerous parts, and are bulky, making it difficult to meet the stringent requirements of modern miniaturized instruments and equipment for compactness and high integration. Second, they lack linked monitoring of safety status; existing devices typically only achieve the physical opening and closing of the gas path, failing to integrate a real-time electrical signal feedback mechanism. This results in operators being unable to remotely obtain the exact status of the gas cylinder valves, creating blind spots in safety monitoring, and failing to achieve effective linkage between mechanical actions and electrical control signals, thus failing to meet the needs of automated system control.

[0005] Therefore, there is an urgent need for a device that is compact in structure, easy to operate, and can achieve synchronous linkage between gas circuit opening / closing and status detection. Utility Model Content

[0006] In view of the above-mentioned technical problems, a rotary-triggered quick gas cylinder on-off device is provided, which converts the rotation of the handle into axial motion by using spiral transmission, drives the connection to turn on and off and synchronously triggers the switch, so as to realize the linked monitoring of the gas circuit state.

[0007] To achieve the above objective, the present utility model provides a rotary-triggered quick gas cylinder on-off device, comprising: a gas cylinder assembly, a mounting cylinder assembly and a switch assembly; The gas cylinder assembly comprises a handle, a gas cylinder, a self-sealing quick female connector and a switch trigger plate arranged coaxially, the gas cylinder is a cylindrical shell, the handle is fixedly connected to the first end face of the gas cylinder, the self-sealing quick female connector is fixedly installed in the central mounting hole on the second end face of the gas cylinder, and the switch trigger plate is fixedly installed on the self-sealing quick female connector; The mounting cylinder assembly comprises a gas cylinder seat, a gas cylinder seat cover plate and a quick male connector arranged coaxially, the gas cylinder seat is provided with a mounting cavity for mounting the gas cylinder assembly, the gas cylinder seat cover plate is fixed at the end of the gas cylinder seat, and the quick male connector is fixedly installed in the central mounting hole of the gas cylinder seat cover plate; The switch assembly comprises a switch bracket and a switch, the switch bracket is fixed on the mounting cylinder assembly, and the switch is mounted on the switch bracket; The handle is provided with at least one guide body, the gas cylinder seat is a cylindrical structure, at least one spiral groove is correspondingly formed on the gas cylinder seat, the starting end of the spiral groove is of an open design, the tail end of the spiral groove is connected with a section of circumferential groove, the guide body is slidably embedded in the spiral groove and the circumferential groove, which together form a spiral transmission mechanism that converts rotary motion into axial linear motion; when the handle is rotated, the spiral transmission mechanism drives the gas cylinder assembly to generate axial displacement relative to the mounting cylinder assembly, so that the self-sealing quick female connector is engaged with or separated from the quick male connector, and at the same time, the switch trigger plate moves with the gas cylinder assembly to trigger or disconnect the switch.

[0008] Further, the switch is one of a mechanical switch, a photoelectric switch and an ultrasonic switch.

[0009] Further, the outer diameter dimension A of the gas cylinder and the inner diameter dimension B of the mounting cavity of the gas cylinder seat satisfy the relationship: A+0.05mm≤B≤A+0.5mm.

[0010] Further, a knob is arranged on the handle.

[0011] Further, the end of the gas cylinder seat close to the gas cylinder seat cover plate is provided with a mounting groove; the switch bracket and the switch are mounted in the mounting groove.

[0012] Further, the quick male connector is connected with a gas pipe adapter.

[0013] Furthermore, the connection method between the handle, the self-sealing quick-connect female connector and the gas cylinder is one of the following: threaded connection, welding, riveting, or adhesive bonding.

[0014] Furthermore, the connection method between the quick connector and the gas cylinder seat cover is one of the following: threaded connection, welding, riveting, or adhesive bonding.

[0015] Furthermore, the connection method between the self-sealing quick-connect female connector and the switch trigger plate is one of the following: threaded connection, welding, riveting, or adhesive bonding.

[0016] Furthermore, a temperature control device is provided on the outside of the gas cylinder holder.

[0017] By adopting the above technical solution, this utility model has the following advantages compared with the prior art: 1. This utility model provides a rotary trigger-type quick-connect and disconnect device for gas cylinders, which efficiently converts the rotational motion of the handle into axial linear motion by employing a screw transmission mechanism. This design not only makes the overall structure highly integrated and compact, adapting to the installation requirements of miniaturized instruments and equipment, but also makes operation simple and smooth. It not only solves the problem of loose structure in existing technologies, but also significantly reduces the difficulty of operation.

[0018] 2. This utility model provides a rotary trigger-type rapid on / off device for gas cylinders. By integrating a detection switch internally, the device can simultaneously trigger an electrical signal while driving the gas circuit on / off. This achieves "electromechanical linkage" between mechanical action and electrical control, effectively solving the problem that traditional devices cannot provide feedback on the gas cylinder status, eliminating blind spots in safety monitoring, and facilitating automated control of the system.

[0019] 3. This utility model provides a rotary trigger-type quick-connect / disconnect device for gas cylinders. It uses axial thrust to drive a pin to open the gas cylinder valve, resulting in more even and stable force distribution compared to the traditional direct screwing method. This not only ensures the reliability of the gas connection and the stability of the gas supply, but also effectively reduces component wear caused by frequent disassembly and assembly, lowering the risk of gas leakage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the overall structure of a rotary trigger type gas cylinder quick-connect and disconnect device according to the present invention; Figure 2 This is a cross-sectional view of a rotary trigger type gas cylinder quick-connect and disconnect device according to this utility model; Figure 3 This is a schematic diagram of the handle structure of a rotary trigger type gas cylinder quick-connect and disconnect device according to the present invention; Figure 4 This is a schematic diagram of the cylinder seat structure of a rotary trigger type quick-connect and disconnect device for gas cylinders as described in this utility model. Figure 5 This is an exploded view of a rotary trigger type gas cylinder quick-connect and disconnect device according to this utility model. Figure 6 This is a schematic diagram of a rotary trigger type gas cylinder quick-on / off device temperature control device according to the present invention.

[0022] In the diagram: 1. Gas cylinder assembly; 2. Mounting cylinder assembly; 3. Switch assembly; 101. Handle; 102. Gas cylinder; 103. Self-sealing quick-connect female connector; 104. Switch trigger plate; 201. Gas cylinder holder; 202. Gas cylinder holder cover; 203. Quick-connect male connector; 204. Gas pipe adapter; 301. Switch bracket; 302. Switch; 401. Temperature control device; 1011. Guide body; 1012. Knob; 2011. Mounting cavity; 2012. Spiral groove; 2013. Circumferential groove; 2014. Mounting groove. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. 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.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0027] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0028] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0029] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0030] like Figures 1 to 6 As shown, this utility model provides a rotary trigger type quick-on / off device for a gas cylinder 102, including: a gas cylinder assembly 1, a mounting cylinder assembly 2, and a switch assembly 3.

[0031] The gas cylinder assembly 1 is the core component of the device, comprising a coaxially arranged gas cylinder 102, a handle 101, a self-sealing quick-connect female connector 103, and a switch 302 trigger. The gas cylinder 102 is a cylindrical shell used to store gas. The handle 101 has a knob 1012 for easy manual operation and is fixedly connected to the first end face of the gas cylinder 102. The connection method can be a common connection process such as threaded connection, welding, riveting, or adhesive bonding. The handle 101 has at least one guide body 1011. The self-sealing quick-connect female connector 103 is fixedly installed in the center mounting hole of the second end face of the gas cylinder 102. The switch trigger plate 104 is fixedly installed on the self-sealing quick-connect female connector 103, and the connection between the two can also be achieved using the aforementioned threaded connection method. The function of the switch trigger plate 104 is to move with the gas cylinder assembly 1 to trigger or disconnect the switch 302.

[0032] The mounting cylinder assembly 2 serves as the base for fixing and docking the device, and includes a coaxially arranged cylinder seat 201, cylinder seat cover 202, and quick connector 203. The cylinder seat 201 is a cylindrical structure, with an internal mounting cavity 2011 for accommodating the cylinder assembly 1. To ensure smooth and stable axial sliding of the cylinder 102 within the mounting cavity 2011, the outer diameter A of the cylinder 102 and the inner diameter B of the mounting cavity 2011 must satisfy the following relationship: A + 0.05 mm ≤ B ≤ A + 0.5 mm. The cylinder seat cover 202 is fixed to the end of the cylinder seat 201, and the quick connector 203 is fixedly installed in the central mounting hole of the cylinder seat cover 202. The connection method can be one of the commonly used connection processes: threaded connection, welding, riveting, or adhesive bonding. The quick connector 203 can connect to a gas hose adapter 204 to accommodate gas hoses of different diameters. At least one spiral groove 2012 is correspondingly provided on the gas cylinder holder 201. The spiral groove 2012 has an open start end and a circumferential groove 2013 connected to the end. The guide body 1011 is slidably embedded in the spiral groove 2012 and the circumferential groove 2013, which together form a spiral transmission mechanism that converts rotational motion into axial linear motion. The circumferential groove 2013 prevents the guide body 1011 from sliding along the spiral groove 2012 and maintains the axial position of the gas cylinder assembly 1 to maintain the state of connection of the quick male and female connector gas circuit.

[0033] The switch assembly 3 includes a switch bracket 301 and a switch 302. The switch bracket 301 is fixed to the mounting cylinder assembly 2, specifically installed in a groove at the end of the gas cylinder seat 201. The switch 302 is mounted on the switch bracket 301, and can be a mechanical switch, photoelectric switch, or ultrasonic switch, etc., used to detect the position of the switch trigger plate 104. The key to this invention lies in its unique helical transmission mechanism. This mechanism consists of at least one guide body 1011 on the handle 101 and at least one helical groove 2012 correspondingly opened on the gas cylinder seat 201. The guide body 1011 is slidably embedded in the helical groove 2012. When the handle 101 is rotated, the guide body 1011 moves along the helical groove 2012, thereby converting the rotational motion of the handle 101 into a precise axial linear motion of the entire gas cylinder assembly 1 relative to the mounting cylinder assembly 2.

[0034] The device operates as follows: When the operator rotates handle 101 clockwise or counterclockwise, the gas cylinder assembly 1 moves axially forward or backward under the action of the screw drive mechanism. This movement causes the self-sealing quick-connect female connector 103 to engage (connect the gas path) or disengage (disconnect the gas path) with the quick-connect male connector 203. Simultaneously, the switch trigger plate 104 fixed on the self-sealing quick-connect female connector 103 moves synchronously with the gas cylinder assembly 1, triggering or disconnecting the switch 302 at a specific position, thereby generating a corresponding electrical signal. This design achieves integrated linkage between gas path on / off and electrical signal control. As an optional embodiment, a temperature control device 401, such as a heating belt or cooling jacket, can be added to the outside of the gas cylinder holder 201. Through the principle of heat conduction, the temperature control device 401 can control the temperature of the medium inside the gas cylinder 102 to meet the needs of specific application scenarios.

[0035] Example 1 As attached Figure 5 As shown, a rotary trigger-type quick-connect / disconnect device for a gas cylinder 102 includes a gas cylinder 102, a handle 101, a self-sealing quick-connect female connector 103, and a switch trigger plate 104, all coaxially arranged. The handle 101 is bonded to the first cross-section of the cylindrical gas cylinder 102 using epoxy resin adhesive. The external thread of the self-sealing quick-connect female connector 103 connects to the NPT 1 / 8 threaded hole at the center of the second end face of the gas cylinder 102. The self-sealing quick-connect female connector 103 is a Swagelok miniature quick-connect connector; the locking mechanism is removed before use to prevent the quick-connect male and female connectors from locking each other during engagement. The switch trigger plate 104 is bonded to the self-sealing quick-connect female connector 103 using epoxy resin adhesive. The switch trigger plate 104 is a circular aluminum alloy plate, ensuring smooth and accurate contact with the switch 302. The function of the switch trigger plate 104 is to move with the gas cylinder assembly 1 to trigger or disconnect the switch 302. The guide body 1011 on the handle 101 uses two symmetrically distributed hardened steel cylindrical pins to enhance its wear resistance and guiding stability when sliding in the spiral groove 2012.

[0036] Mounting cylinder assembly 2 includes a coaxially arranged cylinder seat 201, cylinder seat cover 202, and quick connector 203. The cylinder seat 201 has a cylindrical structure with an internal mounting cavity 2011 for accommodating the cylinder assembly 1. The spiral groove 2012 on the cylinder seat 201 is an Archimedean spiral groove, with an open beginning and a circumferential groove 2013 at the end. It engages with two symmetrically distributed hardened steel cylindrical pins on the handle 101. These pins are precision ground to achieve a smooth surface, resulting in smooth rotation and high axial displacement linearity. The basic dimensions of the outer diameter A of the cylinder 102 and the inner diameter B of the mounting cavity 2011 are 27mm. The fit is strictly controlled within the range of A+0.08mm≤B≤A+0.15mm to ensure smooth sliding while minimizing radial wobble and ensuring concentricity of the quick connector. The gas cylinder holder 201 and the gas cylinder holder cover 202 are connected by bolts. The quick-connect male connector 203 is a Swagelok miniature quick-connect connector. The NPT 1 / 8 external thread of the quick-connect male connector 203 is connected to the center mounting hole of the NPT 1 / 8 internal thread of the gas cylinder holder cover 202. The other end of the quick-connect male connector 203 is threaded to the gas pipe adapter 204 to adapt to a gas supply pipeline with a diameter of 1.6mm.

[0037] The switch assembly 3 includes a switch bracket 301 and a switch 302. The switch 302 is bolted to the switch bracket 301, which in turn is bolted to the mounting cylinder assembly 2, specifically installed within a groove at the end of the gas cylinder holder 201. The switch 302 is a high-precision, long-life Omron DEF-L micro switch 302, characterized by low triggering force, low hysteresis, and the ability to provide clear on / off signals. The switch bracket 301 features elongated mounting holes, allowing for fine-tuning of the switch 302's position to precisely set the trigger point of the trigger plate when the gas circuit is connected or disconnected.

[0038] When the equipment requires ventilation or maintenance, the operator rotates handle 101. Guide 1011 moves along spiral groove 2012, precisely converting the rotational motion of cylinder assembly 1 into axial linear motion. Simultaneously with the self-sealing quick-connect female connector 103 and quick-connect male connector 203 reaching the fully engaged or disengaged position, switch trigger plate 104 triggers or releases microswitch 302. The signal from switch 302 is immediately fed back to the equipment's control system for interlocking control of subsequent process steps or updating equipment status indicators.

[0039] Example 2 As attached Figure 6As shown, the difference between this embodiment and Embodiment 1 lies in that a polyimide (PI) heating film is integrated as a heating element on the outer wall of the gas cylinder holder 201. This heating film has excellent insulation strength, thermal conductivity, and flexible bonding characteristics. A PT100 temperature sensor is installed inside the gas cylinder holder 201 for real-time, high-precision temperature detection, and its signal is output to the temperature control device 401. Based on the temperature signal fed back by the PT100 sensor, the temperature control device 401 dynamically adjusts the power of the polyimide heating film. Through heat conduction through the wall of the gas cylinder holder 201, the gas medium inside the gas cylinder 102 is heated or kept warm, thereby stabilizing the medium temperature within a preset range and ensuring normal operation in harsh application scenarios such as low temperatures.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rotary trigger-type rapid on / off device for gas cylinders, characterized in that, include: Gas cylinder assembly (1), mounting cylinder assembly (2) and switch assembly (3); The gas cylinder assembly (1) includes a handle (101), a gas cylinder (102), a self-sealing quick connector (103), and a switch trigger plate (104) arranged coaxially. The gas cylinder (102) is a cylindrical shell. The handle (101) is fixedly connected to the first end face of the gas cylinder (102). The self-sealing quick connector (103) is fixedly installed in the center mounting hole of the second end face of the gas cylinder (102). The switch trigger plate (104) is fixedly installed on the self-sealing quick connector (103). The mounting cylinder assembly (2) includes a gas cylinder seat (201), a gas cylinder seat cover plate (202), and a quick connector (203) arranged coaxially. The gas cylinder seat (201) has a mounting cavity (2011) for mounting the gas cylinder assembly (1). The gas cylinder seat cover plate (202) is fixed to the end of the gas cylinder seat (201). The quick connector (203) is fixedly installed in the central mounting hole of the gas cylinder seat cover plate (202). The switch assembly (3) includes a switch bracket (301) and a switch (302). The switch bracket (301) is fixed on the mounting cylinder assembly (2), and the switch (302) is mounted on the switch bracket (301). The handle (101) is provided with at least one guide body (1011). The gas cylinder seat (201) is a cylindrical structure. At least one spiral groove (2012) is correspondingly opened on the gas cylinder seat (201). The starting end of the spiral groove (2012) is open. The end of the spiral groove (2012) is connected to a circumferential groove (2013). The guide body (1011) is slidably embedded in the spiral groove (2012) and the circumferential groove (2013), which together constitute a spiral transmission mechanism that converts rotational motion into axial linear motion. When the handle (101) is rotated, the gas cylinder assembly (1) is driven to generate axial displacement relative to the mounting cylinder assembly (2) through the spiral transmission mechanism, so that the self-sealing quick female connector (103) and the quick male connector (203) are engaged or separated. At the same time, the switch trigger plate (104) moves with the gas cylinder assembly (1) and triggers or disconnects the switch (302).

2. The rotary trigger type quick-connect / disconnect device for gas cylinders according to claim 1, characterized in that, The switch (302) is one of a mechanical switch, a photoelectric switch, or an ultrasonic switch.

3. The rotary trigger type quick-connect / disconnect device for gas cylinders according to claim 1, characterized in that, The outer diameter A of the gas cylinder (102) and the inner diameter B of the mounting cavity (2011) of the gas cylinder seat (201) satisfy the following relationship: A+0.05mm≤B≤A+0.5mm.

4. The rotary trigger type quick-connect / disconnect device for gas cylinders according to claim 1, characterized in that, The handle (101) is provided with a knob (1012).

5. The rotary trigger type quick-connect / disconnect device for gas cylinders according to claim 1, characterized in that, The gas cylinder holder (201) has an installation groove (2014) at the end near the gas cylinder holder cover plate (202); the switch bracket (301) and the switch (302) are installed in the installation groove (2014).

6. The rotary trigger type quick-connect / disconnect device for gas cylinders according to claim 1, characterized in that, The quick-connect male connector (203) is connected to an air hose adapter (204).

7. The rotary trigger type quick-connect / disconnect device for gas cylinders according to claim 1, characterized in that, The connection method between the handle (101), the self-sealing quick connector (103) and the gas cylinder (102) is one of the following: threaded connection, welding, riveting and adhesive bonding.

8. The rotary trigger type quick-connect / disconnect device for gas cylinders according to claim 1, characterized in that, The connection method between the quick connector (203) and the gas cylinder seat cover (202) is one of the following: threaded connection, welding, riveting, or adhesive bonding.

9. A rotary trigger-type quick-connect / disconnect device for gas cylinders according to claim 1, characterized in that, The connection method between the self-sealing quick female connector (103) and the switch trigger plate (104) is one of the following: threaded connection, welding, riveting, or adhesive bonding.

10. A rotary trigger-type rapid on / off device for gas cylinders according to claim 1, characterized in that, A temperature control device (401) is provided on the outside of the gas cylinder holder (201).

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