Airbag connecting structure of unmanned aerial vehicle

By combining dovetail tenon and dovetail groove design with quick-release bolts, positioning posts and bracket skids, the problems of stability and assembly difficulty of the drone airbag connection structure are solved, achieving a fast and stable connection, reducing maintenance costs and ensuring effective protection of the airbag at critical moments.

CN223934981UActive Publication Date: 2026-02-24HAILI TIANMENG (XIANGHE) TECH CO LTD
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Patent Information

Application Number
CN202520816766.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-02-24
Estimated Expiration
2035-04-27

AI Technical Summary

Technical Problem

Existing drone airbag connection structures lack sufficient robustness to guarantee proper functioning at critical moments, and their assembly is difficult, increasing production and maintenance costs.

Method used

The design employs a dovetail tenon and dovetail groove combination, along with quick-release bolts and positioning posts, to achieve a quick and stable connection between the airbag mechanism and the drone body. Additional support is provided by brackets and skids to ensure the stability and convenience of the connection.

Benefits of technology

It enables rapid connection and disassembly of the airbag mechanism and the drone body, enhances the stability and robustness of the connection, reduces assembly difficulty and maintenance costs, and ensures that the airbag can accurately deploy to provide protection in case of an accident.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of unmanned aerial vehicle accessory equipment, and discloses an unmanned aerial vehicle air bag connecting structure which comprises an unmanned aerial vehicle body and an air bag mechanism, the bottom end of the unmanned aerial vehicle body is fixedly connected with a mounting plate, one side of the bottom end of the mounting plate is fixedly connected with dovetail tenons arranged in a mirror image distribution mode, and one side of the mounting plate is provided with a sliding groove; a connecting plate is fixedly connected to the upper end of the air bag mechanism, two dovetail grooves distributed in a mirror image mode are formed in the upper end of the connecting plate, and an inserting plate is fixed to one side of the connecting plate. According to the air bag connecting structure of the unmanned aerial vehicle, the dovetail tenons distributed in a mirror image mode and arranged at the bottom end of the mounting plate are matched with the dovetail grooves in the connecting plate at the upper end of the air bag mechanism, so that the stability and accuracy of the unmanned aerial vehicle body and the air bag mechanism in the connecting process are guaranteed, and dislocation or shaking in the connecting process is prevented; the firmness of the connecting structure is guaranteed, it is guaranteed that the air bag mechanism can be accurately unfolded when an accident happens, and effective protection is provided.
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Description

Technical Field

[0001] This application relates to the field of drone accessory technology, specifically a drone airbag connection structure. Background Technology

[0002] A drone is an aircraft that can be remotely controlled or fly autonomously. In recent years, with the rapid development of drone technology, drones have come in different types and uses, such as reconnaissance, surveillance, traffic management, fire fighting, agriculture, and entertainment.

[0003] However, existing drone collision avoidance technologies generally suffer from problems such as limited functionality and limited applicability. In particular, existing airbag connection structures often lack sufficient robustness and cannot guarantee normal operation at critical moments. Furthermore, the high assembly difficulty increases production and maintenance costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an airbag connection structure for drones, which has advantages such as simple installation. It solves the problems of limited functionality and limited applicability of existing drone collision avoidance technologies. In particular, existing airbag connection structures often lack sufficient rigidity to ensure normal operation at critical moments, and the high assembly difficulty increases production and maintenance costs.

[0005] To achieve the above objectives, this application provides the following technical solution: a drone airbag connection structure, comprising a drone body and an airbag mechanism, wherein a mounting plate is fixedly connected to the bottom end of the drone body, and a dovetail tenon arranged in a mirror distribution is fixedly connected to one side of the bottom end of the mounting plate, a sliding groove is provided on one side of the mounting plate, and two positioning holes arranged in a mirror distribution are provided on one side of the mounting plate, a connecting plate is fixedly connected to the upper end of the airbag mechanism, two dovetail grooves arranged in a mirror distribution are provided on the upper end of the connecting plate, two positioning posts arranged in a mirror distribution are fixedly connected to one side of the connecting plate, and an insert plate is fixedly connected to one side of the connecting plate.

[0006] The above solution utilizes mirror-distributed dovetail tenons at the bottom of the mounting plate, which engage with dovetail grooves on the connecting plate at the top of the airbag mechanism. This ensures the stability and accuracy of the connection between the drone and the airbag mechanism, preventing misalignment or shaking and guaranteeing the robustness of the connection structure. The dovetail tenons at the bottom of the mounting plate and the dovetail grooves at the top of the connecting plate allow the airbag mechanism to slide and be quickly fixed to the drone. By sliding the connecting plate onto the bottom of the mounting plate and inserting the dovetail tenons into the dovetail grooves, while the positioning pins are inserted into the positioning holes and the insert plate slides into the sliding groove, a rapid connection between the airbag mechanism and the drone is achieved. The engagement of the insert plate and the sliding groove also provides additional fixation for the installation, making it more secure and enhancing the stability of the connection. This helps ensure that the airbag mechanism can deploy accurately in the event of an accident, providing effective protection.

[0007] Furthermore, a first mounting hole is provided through one side of the inner side of the connecting plate, and a second mounting hole is provided through one side of the inner side of each of the two dovetail tenons. A quick-release bolt is slidably disposed inside the first mounting hole, and the quick-release bolt is disposed through the second mounting hole. A quick-release nut is threaded on one end of the quick-release bolt.

[0008] The quick-release bolts and nuts, as described above, facilitate the connection and disassembly of the drone body and the airbag mechanism. Simply rotate the quick-release nut to remove the quick-release bolt, and the connecting plate and mounting plate can be easily separated, achieving the purpose of quick assembly and disassembly. The quick-release bolt passes through the first and second mounting holes and is secured by the quick-release nut, ensuring a firm connection between the connecting plate and the mounting plate, thereby improving the stability of the connection and preventing loosening of the connection due to vibration or external impact.

[0009] Furthermore, two brackets arranged in a mirror image are fixedly connected to the bottom of the drone body, and two skids are fixedly connected to the bottom of the two brackets.

[0010] The above design provides additional support points for the drone, making it more stable during landing. The skids can disperse the impact force during landing. The support provided by the brackets and skids supports the drone body and prevents the airbag mechanism from colliding with the ground during landing.

[0011] Furthermore, the connecting plate is slidably disposed on one side of the bottom end of the mounting plate, and both dovetail tenons are slidably disposed inside the dovetail groove.

[0012] The above-mentioned design, including the sliding design between the connecting plate and the mounting plate, and the sliding fit between the dovetail tenon and the dovetail groove, makes the connection process between the airbag mechanism and the drone body more convenient. Simply align the connecting plate with the mounting plate and then gently push it along the sliding direction to complete the connection, which improves the connection efficiency. The fit between the dovetail tenon and the dovetail groove ensures that the connection between the airbag mechanism and the drone body remains stable and reliable during the drone's flight.

[0013] Furthermore, both positioning posts are slidably disposed inside the positioning holes, and the insert plate is slidably disposed inside the slide groove.

[0014] Through the above scheme, the sliding fit between the positioning post and the positioning hole provides precise guidance for the positioning of the connecting plate on the mounting plate, ensuring that the airbag mechanism can be aligned with the UAV body during the connection process, avoiding connection problems caused by position deviation. After the insert plate is inserted into the slide groove, it restricts the movement of the connecting plate on the mounting plate and enhances the stability of the connection.

[0015] Furthermore, the airbag mechanism includes an air guide block, a trigger device is fixedly connected to one side of the air guide block, an airbag mounting canister is fixedly connected to the bottom end of the air guide block, a connector is fixedly connected to one side of the air guide block, a firing pin is slidably arranged on one side of the air guide block, an air cylinder is threadedly connected to the inside of the connector, and a protective sleeve is threadedly connected to the outer wall of the connector.

[0016] Through the above scheme, the airbag mechanism integrates components such as the air guide block, triggering device, airbag mounting canister, and connector. The cooperation between the triggering device and the firing pin allows the airbag mechanism to respond quickly when needed. When the triggering condition is met, the firing pin will move quickly, puncturing the gas cylinder and allowing gas to quickly fill the airbag in the airbag mounting canister, achieving rapid inflation and deployment. The gas cylinder, as the gas source for airbag inflation, is connected to the air guide block through the connector. The protective sleeve design is used to protect the gas cylinder from interference and damage from the external environment, improving the stability of the airbag mechanism. The threaded connection between the connector, the gas cylinder, and the protective sleeve makes these components easy to disassemble and replace. When the gas cylinder is used up, it can be easily removed and replaced with a new one, reducing maintenance costs and time.

[0017] Furthermore, the protective sleeve is fixedly provided with a plurality of anti-slip strips arranged in a circular array on its exterior.

[0018] The above design increases the friction on the surface of the protective cover, allowing operators to hold it more stably when installing, disassembling, or carrying the airbag mechanism, and making it easier to rotate the protective cover.

[0019] Furthermore, the gas cylinder is slidably disposed inside the protective sleeve.

[0020] The above solution provides a robust outer shell for the gas cylinder, effectively preventing the gas cylinder from being damaged by impacts during use, which could lead to gas bladder failure.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This drone airbag connection structure utilizes mirror-distributed dovetail tenons at the bottom of the mounting plate, which engage with dovetail grooves on the connecting plate at the top of the airbag mechanism. This ensures the stability and accuracy of the connection between the drone body and the airbag mechanism, preventing misalignment or shaking and guaranteeing the robustness of the connection structure. The dovetail tenons at the bottom of the mounting plate and the dovetail grooves at the top of the connecting plate allow the airbag mechanism to slide and be fixed quickly onto the drone body. By sliding the connecting plate onto the bottom of the mounting plate and allowing the dovetail tenons to slide into the dovetail grooves, while the positioning pins are inserted into the positioning holes and the insert plate slides into the sliding groove, a rapid connection between the airbag mechanism and the drone body is achieved. The engagement of the insert plate and the sliding groove also provides additional fixation for the installation, making the installation more secure and enhancing the stability of the connection. This helps ensure that the airbag mechanism can deploy accurately in the event of an accident, providing effective protection. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the mounting plate structure of this application;

[0025] Figure 3 This is a schematic diagram of the connecting plate structure of this application;

[0026] Figure 4 A schematic diagram of the airbag mechanism installation structure of this application.

[0027] Figure 5 This is a schematic diagram of the airbag mechanism structure of this application.

[0028] In the picture:

[0029] 1. UAV body; 2. Mounting plate; 3. Dovetail tenon; 4. Slide groove; 5. Positioning hole; 6. Airbag mechanism; 601. Air guide block; 602. Triggering device; 603. Airbag mounting canister; 604. Connector; 605. Firing pin; 606. Air cylinder; 607. Protective cover; 608. Anti-slip strip; 7. Connecting plate; 8. Dovetail groove; 9. Positioning post; 10. Insert plate; 11. First mounting hole; 12. Second mounting hole; 13. Quick-release bolt; 14. Quick-release nut; 15. Bracket; 16. Skid plate. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of an airbag connection structure for a drone includes a drone body 1 and an airbag mechanism 6. A mounting plate 2 is fixedly connected to the bottom of the drone body 1. A dovetail tenon 3 arranged in a mirror image is fixedly connected to one side of the bottom of the mounting plate 2. A groove 4 is provided on one side of the mounting plate 2, and two positioning holes 5 are arranged in a mirror image on one side of the mounting plate 2. A connecting plate 7 is fixedly connected to the upper end of the airbag mechanism 6. Two dovetail grooves 8 are arranged in a mirror image on the upper end of the connecting plate 7. The dovetail tenons 3 arranged in a mirror image on the bottom of the mounting plate 2 cooperate with the dovetail grooves 8 on the connecting plate 7 at the upper end of the airbag mechanism 6 to ensure the drone body... The stability and accuracy of the connection between the airbag mechanism 6 and the airbag mechanism 1 during the connection process prevent misalignment or shaking, ensuring the robustness of the connection structure. Two positioning posts 9 are fixedly connected to one side of the connecting plate 7 in a mirror-shaped arrangement, and an insert plate 10 is fixed to one side of the connecting plate 7. The positioning posts 9 are inserted into the positioning holes 5, and the insert plate 10 slides into the slide groove 4, realizing the rapid connection between the airbag mechanism 6 and the UAV body 1. The cooperation between the insert plate 10 and the slide groove 4 also provides additional fixation for the installation, making the installation more secure and enhancing the stability of the connection. This helps to ensure that the airbag mechanism 6 can deploy accurately in the event of an accident, providing effective protection.

[0032] Please see Figure 1 , Figure 2 and Figure 4A first mounting hole 11 is provided through one side of the connecting plate 7, and a second mounting hole 12 is provided through one side of each of the two dovetail tenons 3. A quick-release bolt 13 is slidably disposed inside the first mounting hole 11, and the quick-release bolt 13 is disposed through the second mounting hole 12. A quick-release nut 14 is threaded on one end of the quick-release bolt 13. The quick-release bolt 13 and quick-release nut 14 make the connection and disassembly between the drone body 1 and the airbag mechanism 6 convenient. Simply rotate the quick-release nut 14 to remove the quick-release bolt 13, and the connecting plate 7 and the mounting plate 2 can be easily separated, achieving the purpose of quick assembly and disassembly. The quick-release bolt 13 passes through the first mounting hole 11 and the second mounting hole 12. The mounting hole 12, secured by quick-release nuts 14, ensures a firm connection between the connecting plate 7 and the mounting plate 2, thereby improving the stability of the connection and preventing loosening due to vibration or external impact. Two mirror-distributed brackets 15 are fixedly connected to the bottom of the drone body 1. Two skids 16 are fixedly connected to the bottom of the two brackets 15. The design of the brackets 15 and skids 16 provides additional support points for the drone, making it more stable when landing. The skids 16 can disperse the impact force during landing. The support provided by the brackets 15 and skids 16 supports the drone body 1 and prevents the airbag mechanism 6 from colliding with the ground during landing.

[0033] Please see Figure 2 and Figure 4 The connecting plate 7 is slidably mounted on one side of the bottom of the mounting plate 2, and both dovetail tenons 3 are slidably mounted inside the dovetail groove 8. The sliding design between the connecting plate 7 and the mounting plate 2, as well as the sliding fit between the dovetail tenons 3 and the dovetail groove 8, makes the connection process between the airbag mechanism 6 and the drone body 1 convenient. Simply align the connecting plate 7 with the mounting plate 2 and then gently push it along the sliding direction to complete the connection, improving connection efficiency. The fit between the dovetail tenons 3 and the dovetail groove 8 ensures that the connection between the airbag mechanism 6 and the drone body 1 remains stable and reliable during drone flight. Both positioning pins 9 are slidably mounted inside the positioning holes 5, and the insert plate 10 is slidably mounted inside the slide groove 4. The sliding fit between the positioning pins 9 and the positioning holes 5 provides precise guidance for the positioning of the connecting plate 7 on the mounting plate 2, ensuring that the airbag mechanism 6 can be aligned with the drone body 1 during the connection process, avoiding connection problems caused by positional deviation. After the insert plate 10 is inserted into the slide groove 4, it restricts the movement of the connecting plate 7 on the mounting plate 2, enhancing the stability of the connection.

[0034] Please see Figure 5The airbag mechanism 6 includes an air guide block 601. A triggering device 602 is fixedly connected to one side of the air guide block 601. An airbag mounting canister 603 is fixedly connected to the bottom of the air guide block 601. A connector 604 is fixedly connected to one side of the air guide block 601. A firing pin 605 is slidably disposed on one side of the air guide block 601. A gas cylinder 606 is internally threaded to the connector 604. A protective sleeve 607 is threaded to the outer wall of the connector 604. The airbag mechanism 6 integrates the air guide block 601, triggering device 602, airbag mounting canister 603, connector 604, and other components. The cooperation between the triggering device 602 and the firing pin 605 allows the airbag mechanism 6 to respond quickly when needed. When the triggering condition is met, the firing pin 605 will move quickly, puncturing the gas cylinder 606, allowing gas to quickly fill the airbag in the airbag mounting canister 603, achieving rapid inflation and deployment. The gas cylinder 606 serves as the gas source for airbag inflation and is connected to the air guide block 601 via the connector 604. The protective sleeve 607 is designed to protect the gas cylinder 606 from interference and damage from the external environment, improving the stability of the airbag mechanism 6. The threaded connection between the connector 604 and the gas cylinder 606 and the protective sleeve 607 makes these components easy to disassemble and replace. When the gas cylinder 606 is used up, it can be easily removed and replaced with a new gas cylinder 606, reducing maintenance costs and time. The protective sleeve 607 is fixedly provided with multiple anti-slip strips 608 arranged in a ring array on the outside. The design of the anti-slip strips 608 increases the friction of the surface of the protective sleeve 607, allowing the operator to hold the protective sleeve 607 more stably when installing, disassembling or carrying the airbag mechanism 6, and facilitating the rotation of the protective sleeve 607. The gas cylinder 606 is slidably disposed inside the protective sleeve 607. The protective sleeve 607 provides a sturdy shell for the gas cylinder 606, which can effectively prevent the airbag from failing due to impact during the use of the gas cylinder 606.

[0035] In this embodiment, the UAV airbag connection structure uses dovetail tenons 3 arranged in a mirror pattern at the bottom of the mounting plate 2 to cooperate with dovetail grooves 8 on the connecting plate 7 at the top of the airbag mechanism 6. This ensures the stability and accuracy of the connection between the UAV body 1 and the airbag mechanism 6, preventing misalignment or shaking during the connection process and ensuring the robustness of the connection structure. The design of the dovetail tenons 3 at the bottom of the mounting plate 2 and the dovetail grooves 8 at the top of the connecting plate 7 allows the airbag mechanism 6 to slide and be fixed quickly onto the UAV body 1. By sliding the connecting plate 7 onto the bottom of the mounting plate 2 and allowing the dovetail tenons 3 to slide into the dovetail grooves 8, while the positioning pin 9 is inserted into the positioning hole 5 and the insert plate 10 slides into the sliding groove 4, a quick connection between the airbag mechanism 6 and the UAV body 1 is achieved. The cooperation between the insert plate 10 and the sliding groove 4 also provides additional fixation for the installation, making the installation more secure and enhancing the stability of the connection. This helps ensure that the airbag mechanism 6 can deploy accurately in the event of an accident, providing effective protection.

[0036] It should be noted that the gas cylinder 606 is a disposable carbon dioxide gas cylinder 606, which means that after the gas cylinder 606 is used, it can be directly replaced without refilling or other maintenance. The carbon dioxide gas cylinder 606 can release gas quickly after being punctured, thereby quickly inflating the airbag. This is especially important when the drone makes an emergency landing or when the airbag needs to be deployed quickly for protection. Carbon dioxide gas can remain stable under various environmental conditions and is not easily affected by environmental factors such as temperature and humidity. This allows the airbag mechanism 6 to work reliably under different environmental conditions.

[0037] The working principle of the above embodiments is as follows:

[0038] Align the connecting plate 7 of the airbag mechanism 6 with the bottom end of the mounting plate 2 of the drone body 1, and gently push it along the sliding direction to allow the dovetail tenon 3 to slide into the dovetail groove 8. At the same time, insert the positioning pin 9 into the positioning hole 5, and slide the insert plate 10 into the slide groove 4. Pass the quick-release bolt 13 through the first mounting hole 11 and the second mounting hole 12, and tighten it with the quick-release nut 14 to ensure a firm connection between the connecting plate 7 and the mounting plate 2. Check whether the connection is tight to ensure that the connection between the drone body 1 and the airbag mechanism 6 is stable and reliable. Confirm that the bracket 15 and the skid plate 16 are correctly installed at the bottom end of the drone body 1 to provide additional support points for the drone. Correctly install the air cylinder 606 on the connecting plate 7. Inside connector 604, protective sleeve 607 is threadedly connected to the outer wall of connector 604. When the drone is flying normally, the airbag mechanism 6 is in standby mode. In case of emergency, trigger device 602 is activated, and firing pin 605 moves quickly to puncture gas cylinder 606, allowing carbon dioxide gas to quickly fill the airbag in airbag installation canister 603. The airbag inflates and deploys to provide cushioning and protection for the drone. After one use, rotate protective sleeve 607 and remove it, rotate gas cylinder 606 and remove it, and install a new gas cylinder 606 inside connector 604 via threads. Reinstalling protective sleeve 607 completes the replacement of gas cylinder 606, ready for the next use.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drone airbag connection structure, comprising a drone body (1) and an airbag mechanism (6), characterized in that: The bottom of the UAV body (1) is fixedly connected to a mounting plate (2). One side of the bottom of the mounting plate (2) is fixedly connected to a dovetail tenon (3) arranged in a mirror distribution. A groove (4) is opened on one side of the mounting plate (2). Two positioning holes (5) are arranged in a mirror distribution on one side of the mounting plate (2). A connecting plate (7) is fixedly connected to the upper end of the airbag mechanism (6). Two dovetail grooves (8) are arranged in a mirror distribution on the upper end of the connecting plate (7). Two positioning posts (9) are fixedly connected to one side of the connecting plate (7). A plug plate (10) is fixed on one side of the connecting plate (7).

2. The UAV airbag connection structure according to claim 1, characterized in that: The connecting plate (7) has a first mounting hole (11) through one side inside, and the two dovetail tenons (3) each have a second mounting hole (12) through one side inside. A quick-release bolt (13) is slidably installed inside the first mounting hole (11). The quick-release bolt (13) is installed through the second mounting hole (12). A quick-release nut (14) is threaded on one end of the quick-release bolt (13).

3. The UAV airbag connection structure according to claim 1, characterized in that: The bottom of the UAV body (1) is fixedly connected to two brackets (15) arranged in a mirror image, and the bottom of the two brackets (15) is fixedly connected to two skids (16).

4. The UAV airbag connection structure according to claim 1, characterized in that: The connecting plate (7) is slidably disposed on one side of the bottom end of the mounting plate (2), and the two dovetail tenons (3) are slidably disposed inside the dovetail groove (8).

5. The UAV airbag connection structure according to claim 1, characterized in that: Both positioning pins (9) are slidably disposed inside the positioning hole (5), and the insert plate (10) is slidably disposed inside the groove (4).

6. The UAV airbag connection structure according to claim 1, characterized in that: The airbag mechanism (6) includes an air guide block (601), a trigger device (602) is fixedly connected to one side of the air guide block (601), an airbag mounting canister (603) is fixedly connected to the bottom end of the air guide block (601), a connector (604) is fixedly connected to one side of the air guide block (601), a firing pin (605) is slidably arranged on one side of the air guide block (601), an air cylinder (606) is threadedly connected inside the connector (604), and a protective sleeve (607) is threadedly connected to the outer wall of the connector (604).

7. The UAV airbag connection structure according to claim 6, characterized in that: The protective sleeve (607) is fixedly provided with a plurality of anti-slip strips (608) arranged in a ring array on the outside.

8. The UAV airbag connection structure according to claim 6, characterized in that: The gas cylinder (606) is slidably disposed inside the protective sleeve (607).