Pneumatic emitter

Abstract

The utility model relates to a pneumatic launcher which comprises a launcher body, the launcher body comprises a main body and a gas cylinder sheath, the main body comprises a shell, one end of the shell is provided with a gas cylinder connecting part, the gas cylinder connecting part comprises a connector used for being connected with a gas cylinder, and the gas cylinder sheath is provided with an inner cavity used for containing the gas cylinder. The gas cylinder sheath is in threaded connection with the shell; the main body further comprises a communicating structure and an exhaust hole formed in the shell, the exhaust hole is communicated with the communicating structure, and the communicating structure is communicated with the inner cavity; when the gas cylinder is not mounted, the joint is communicated with the inner cavity; the pneumatic emitter is provided with an exhaust and pressure relief structure, when the gas cylinder is disassembled and replaced, exhaust and pressure relief can be conducted according to a preset path only by rotating the gas cylinder protective sleeve, use is convenient, the disassembly and replacement process of the gas cylinder is safer, users can be effectively protected, and safety is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of glass-breaking ball launching devices, specifically to a pneumatic launcher. Background Technology

[0002] Curtain walls and roofs of high-rise buildings, as well as windows of various vehicles, are typically made of glass (such as tempered glass). In the event of a fire or other special circumstances, these can be removed using breaching tools. However, when glass is broken at close range, two problems arise: firstly, glass shards fly everywhere, easily injuring people near the broken glass; secondly, the environments on either side of the glass can differ significantly. For example, in a fire or other emergency, the environments inside and outside the glass can differ greatly, increasing the risk of a flashover when the glass breaks, causing even greater harm to those nearby. Therefore, in emergency rescue, emergency escape, and counter-terrorism operations involving glass in curtain walls, vehicle windows, and other structures, a high-hardness composite material-made high-strength glass-breaking ball (referred to as a glass-breaking ball) is often used. By throwing this glass-breaking ball, the glass can be broken at a greater distance, effectively mitigating the risks of close-range glass breaking.

[0003] To break glass more efficiently, existing technologies typically employ specialized glass-breaking devices (or glass-breaking equipment) to launch glass-breaking balls. These devices can be used by hand, mounted on high-pressure jet trucks, or suspended on drones. For example, Chinese patent CN211893653U discloses a drone-based pneumatic glass-breaking ball launching mechanism that is mounted on a drone, resulting in a variety of glass-breaking device structures.

[0004] Existing glass-breaking devices typically use air pressure to propel the glass breaker. Therefore, these devices usually contain a gas cylinder to hold high-pressure gas, which serves as the power source for releasing the high-pressure gas when the glass-breaking ball is thrown. In some smaller glass-breaking devices, such as the one used for drones, the gas cylinder is often detachable. The pressurized gas inside can be used to throw one or more glass-breaking balls. When the pressurized gas in the cylinder is depleted or insufficient to activate the glass-breaking ball, a new cylinder can be replaced. However, in such devices, if high-pressure gas remains in the cylinder during disassembly, it can be dangerous and poses a safety hazard that urgently needs to be addressed. Summary of the Invention

[0005] The first aspect of this utility model is to solve the above-mentioned problems by providing a safer pneumatic launcher that can effectively protect the user. The main concept is as follows:

[0006] A pneumatic launcher includes a launcher body, which comprises a main body and a gas cylinder sleeve. The main body includes a housing, one end of which is provided with a gas cylinder connection portion. The gas cylinder connection portion includes a connector for connecting a gas cylinder. The gas cylinder sleeve has an inner cavity for accommodating the gas cylinder and is threadedly connected to the housing. The main body also includes a communicating structure and an exhaust port formed in the housing. The exhaust port is connected to the communicating structure, and the communicating structure is connected to the inner cavity. When no gas cylinder is installed, the connector is connected to the inner cavity. In this design, the cylinder sleeve is threaded to the housing, and a connector for connecting the cylinder is included to facilitate cylinder installation and replacement. The connector, when not in use, connects to the inner cavity, allowing for quick cylinder alignment during installation and safer venting. The connecting structure and vent, working in tandem with the cylinder sleeve, allow for easy cylinder removal and pressure relief via a pre-defined path simply by rotating the cylinder sleeve during cylinder disassembly and replacement. This not only enhances convenience but also improves safety, effectively protecting users. Furthermore, the vent is located within the main body, rather than on the cylinder sleeve, further away from where the user typically holds the cylinder sleeve, ensuring the discharged gas is further removed from the user's hand and improving venting safety.

[0007] Furthermore, one end of the connector is provided with a insertion hole, and a plug for piercing the gas cylinder seal is provided in the insertion hole; the connector is also provided with an air passage, one end of which passes through the plug and the other end of which passes through the connector. This can solve the problem of rapid positioning during gas cylinder installation, and also solve the problem of communication between the gas chamber and the gas cylinder.

[0008] To prevent air leakage between the gas cylinder and the connector, the gas cylinder connection further includes a gas cylinder sealing ring, which is disposed within the insertion hole, with the plug located in the center hole of the gas cylinder sealing ring. This ensures a simultaneous seal between the gas cylinder and the connector during the tightening of the gas cylinder sleeve, effectively preventing air leakage and facilitating smooth venting and depressurization during cylinder disassembly and replacement.

[0009] Furthermore, it also includes a gas storage component, which has a gas chamber inside and an interface at its rear end. The gas storage component is disposed within the housing, and the connector is connected to the interface to connect the gas cylinder and the gas chamber. This allows the gas in the gas cylinder to be guided into the gas chamber via the connector. The configuration of the gas storage component can be used to control the amount of gas required for a single throw, which is beneficial for multiple throws and can improve throwing efficiency.

[0010] To address the issue of smooth exhaust and pressure relief, in some solutions, the connecting structure includes a first flow channel disposed between the connector and the housing, with the exhaust port connected to the first flow channel and the first flow channel connected to the inner cavity.

[0011] The second aspect of this utility model addresses the problem of improving the service life of gas cylinder sealing rings while allowing for pressure release at any time. Further, it includes a gas storage component with a gas chamber inside and an interface at its rear end. The gas storage component is rotatably mounted within a housing. A connector is connected to the interface, and the connector connects the gas cylinder and the gas chamber. An annular flow channel is formed on the outer side of the connector or the inner wall of the housing. One end of the first flow channel is connected to the annular flow channel. The exhaust port corresponds to and is connected to the annular flow channel. In this design, by rotatably mounting the gas storage component onto the housing, the gas storage component, connector, and gas cylinder sealing ring can rotate synchronously with the gas cylinder during installation. This effectively prevents relative rotation between the gas cylinder and the connector, protecting the gas cylinder sealing ring and extending its service life. Furthermore, by configuring an annular flow channel that connects to the first flow channel, and with the exhaust port corresponding to the annular flow channel, the exhaust port remains connected to the inner cavity regardless of the rotation of the gas storage component. This not only ensures the reliability of the exhaust function but also enhances safety during use.

[0012] The third aspect of this utility model addresses the problem of improving exhaust safety. Further, the connecting structure includes a first flow channel between the connector and the housing, a second flow channel between the gas storage component and the housing, an exhaust port connected to the second flow channel, the second flow channel connected to the first flow channel, and the first flow channel connected to the inner cavity. In this solution, by using the first flow channel between the connector and the housing, and the second flow channel between the gas storage component and the housing, the exhaust port can sequentially connect to the inner cavity via the second flow channel and the first flow channel. This allows the exhaust port to be positioned further away from the gas cylinder sleeve and the connector. On one hand, longer external threads can be machined on the housing to ensure a more secure connection between the gas cylinder sleeve and the housing, preventing a reduction in the connection strength due to the exhaust port. On the other hand, by positioning the exhaust port further away from the gas cylinder sleeve that the user typically holds, the exhaust gas is further away from the user's hand, effectively improving exhaust safety.

[0013] Preferably, one or more planes are formed on the side of the end of the gas storage component, and the second flow channel is formed between the planes and the housing. By forming one or more planes on the side of the gas storage component, not only can the second flow channel be formed, but it can also serve as a force-bearing point when assembling or disassembling the gas storage component, making operation easier.

[0014] Preferably, the gas cylinder connection portion further includes an external thread formed in the housing, and the gas cylinder sleeve is formed with an internal thread adapted to the external thread. The gas cylinder sleeve is connected to the housing through the mating of the internal and external threads. By forming the external thread in the housing, not only is it easier to process and form the external thread, but the connection between the gas cylinder sleeve and the housing is also more reliable, making it suitable for gas cylinders with higher atmospheric pressure, thereby increasing the throwing distance.

[0015] The fourth aspect of this utility model addresses the problem of improving the service life of gas cylinder sealing rings while allowing for timely pressure release. Further, the gas storage component is rotatably mounted within the housing. An annular flow channel is constructed on the outer surface of the gas storage component or the inner wall of the housing. One end of the second flow channel is connected to the annular flow channel. The exhaust port corresponds to and is connected to the annular flow channel. By rotatably mounting the gas storage component within the housing, the gas storage component, connector, and gas cylinder sealing ring can rotate synchronously with the gas cylinder during installation. This effectively prevents relative rotation between the gas cylinder and the connector, protecting the gas cylinder sealing ring. This not only ensures a tighter seal and reduces the risk of leakage but also effectively extends the service life of the gas cylinder sealing ring. Simultaneously, the annular flow channel connects the exhaust port to the second flow channel. Since the annular flow channel runs along the outer surface of the gas storage component, the exhaust port remains connected to the inner cavity regardless of the rotation of the gas storage component. This not only ensures the reliability of the exhaust function but also enhances safety during use.

[0016] Furthermore, the outer surface of the gas storage component has an annular groove, and the housing has a threaded hole that fits the annular groove. A limiting member is threadedly connected to the threaded hole, and the end of the limiting member is inserted into the annular groove. The engagement between the limiting member and the annular groove only restricts the axial movement of the gas storage component, but does not restrict its rotation, thus fixing the position of the gas cylinder connection relatively and making it easier to install and replace the gas cylinder.

[0017] Furthermore, it also includes a gas cylinder, which is disposed inside the gas cylinder sleeve. One end of the gas cylinder abuts against the gas cylinder sleeve, and the other end abuts against the connector. The gas cylinder sleeve is threadedly connected to the housing and presses the gas cylinder tightly against the connector.

[0018] Compared with the prior art, the pneumatic launcher provided by this utility model is equipped with an exhaust and pressure relief structure. When disassembling and replacing the gas cylinder, simply rotating the gas cylinder cover will exhaust and relieve pressure along a preset path. This is not only convenient to use, but also makes the disassembly and replacement of the gas cylinder safer, effectively protecting the user and significantly improving safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a pneumatic launcher provided in Embodiment 1 of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of a gas cylinder.

[0022] Figure 3 This is a schematic diagram of the structure of one end of the main body of a pneumatic launcher provided in Embodiment 1 of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of a connector provided in Embodiment 1 of this utility model.

[0024] Figure 5 This is one of the partial cross-sectional views of a pneumatic launcher provided in Embodiment 1 of this utility model, with the gas cylinder not yet assembled in the figure.

[0025] Figure 6 This is a second partial cross-sectional view of a pneumatic launcher provided in Embodiment 1 of this utility model. The gas cylinder has been assembled in the figure, and the gas cylinder and the gas chamber are in communication.

[0026] Figure 7 This is a partial structural diagram of the gas cylinder during disassembly, showing the vent being used to release air.

[0027] Figure 8 This is a partial cross-sectional view of the gas cylinder connection portion in a pneumatic launcher provided in Embodiment 2 of this utility model.

[0028] Figure 9 This is a partial cross-sectional view of the gas cylinder connection portion in another pneumatic launcher provided in Embodiment 2 of this utility model.

[0029] Figure 10 This is a partial cross-sectional view of the gas cylinder connection portion in a pneumatic launcher provided in Embodiment 3 of this utility model.

[0030] Figure 11 This is a schematic diagram of the structure of a gas storage component in a pneumatic launcher provided in Embodiment 4 of this utility model.

[0031] Figure 12 This is a partial cross-sectional view of the gas cylinder connection portion in a pneumatic launcher provided in Embodiment 4 of this utility model.

[0032] The markings in the diagram are as follows: Main body 1; Shell 2, External thread 21, Exhaust port 22, Assembly cavity 23, Threaded hole 24, Limiting component 25; Gas storage component 3, Gas chamber 31, Valve core 32, Interface 33, Annular groove 34, Annular flow channel 35; Connector 4, Insertion hole 41, Plug 42, Air passage 43, Gas cylinder sealing ring 44, O-ring 45, Flat surface 46; Gas cylinder sleeve 5, Inner cavity 51, Bearing 52; Gas cylinder 6, Sealing 61; First flow channel 71, Second flow channel 72; Guide cylinder 8; Ball storage module 9. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] This embodiment provides a pneumatic launcher, including a launcher body capable of launching a glass-breaking ball using air pressure, such as... Figure 1 As shown, the transmitter body includes a main body 1, a gas cylinder 6 sleeve 5 adapted to the main body 1, and a gas cylinder 6 adapted to the gas cylinder 6 sleeve 5. The main body 1 includes a housing 2 and a gas storage component 3 disposed within the housing 2. One end of the housing 2 is provided with a gas cylinder 6 connecting part, which includes a connector 4 for connecting the gas cylinder 6. The gas cylinder 6 sleeve 5 is constructed with an inner cavity 51 for accommodating the gas cylinder 6. Figure 1 , Figure 5 and Figure 6 As shown, in implementation, the gas cylinder 6 protective sleeve 5 can be a one-piece structure or a combination structure assembled from at least two parts, such as... Figure 1 , Figure 5 and Figure 6 As shown. In one embodiment, the bottom of the gas cylinder 6 can directly abut against the bottom of the gas cylinder 6 sleeve 5, while in another embodiment, a bearing 52 can also be provided at the bottom of the gas cylinder 6 sleeve 5, such as... Figure 5 and Figure 6 As shown, the bearing 52 is preferably a thrust bearing 52, so that the gas cylinder 6 sleeve 5 can rotate relative to the gas cylinder 6 during the installation and disassembly of the gas cylinder 6.

[0036] like Figure 2 As shown, in this embodiment, one end of the gas cylinder 6 is constructed with a gas cylinder 6 seal 61 so that a completely sealed cavity can be formed inside the gas cylinder 6, and pressurized gas is stored in the cavity. The shape and size of the gas cylinder 6 can be achieved using existing technologies, and will not be described in detail here.

[0037] In implementation, the gas cylinder 6 sheath 5 is threadedly connected to the housing 2, which not only facilitates the replacement of the gas cylinder 6, but also allows for tightening or loosening of the gas cylinder 6 by rotation, making it more convenient and labor-saving during use. In implementation, one end of the housing 2 is cylindrical, such as... Figure 3 and Figure 5 As shown, this is to facilitate thread processing. In one embodiment, the gas cylinder 6 connecting portion further includes an internal thread constructed in the housing 2. Correspondingly, the opening of the gas cylinder 6 sheath 5 is constructed with an external thread 21 adapted to the internal thread, so that the gas cylinder 6 sheath 5 can be threadedly connected to the housing 2 through the mating of the internal thread and the external thread 21. In the preferred embodiment provided in this embodiment, the gas cylinder 6 connecting portion further includes an external thread 21 constructed in the housing 2, such as... Figure 3 As shown, correspondingly, the opening of the gas cylinder 6 sleeve 5 is constructed with an internal thread adapted to the external thread 21, so that the gas cylinder 6 sleeve 5 can be threadedly connected to the housing 2 through the mating of the internal thread and the external thread 21, as shown. Figure 5 or Figure 6 As shown, this implementation not only facilitates the processing and forming of the external thread 21, but also allows the thread to be processed to be longer, making the connection between the gas cylinder 6 sheath 5 and the shell 2 more reliable. It is suitable for gas cylinders 6 with higher atmospheric pressure and helps to increase the throwing distance.

[0038] like Figures 5-7 As shown, in this embodiment, the gas storage component 3 is equipped with a gas chamber 31 for storing pressurized gas. The shape and size of the gas chamber 31 can be determined according to actual needs, as long as it meets the gas volume required for one throwing process. In implementation, the volume of the gas chamber 31 can be smaller than the volume of the gas cylinder 6, so that one gas cylinder 6 can be used to throw multiple glass balls. The front end of the gas storage component 3 is provided with a valve core 32 that can move axially (in this embodiment, the length direction of the gas cylinder 6 and the length direction of the gas storage component 3 are consistent, collectively referred to as axial) and the rear end of the gas storage component 3 is equipped with an interface 33, such as... Figures 5-7 As shown, the gas storage component 3 is disposed inside the housing 2, and the connector 4 is sealed to the interface 33, so that the gas chamber 31 can be connected to the gas cylinder 6 through the connector 4, so that the gas in the gas cylinder 6 can be guided into the gas chamber 31 by the connector 4.

[0039] To facilitate the installation and replacement of connector 4, during implementation, connector 4 can be threaded onto the interface 33 at the rear end of the gas storage component 3, and an O-ring 45 is also provided between the gas storage component 3 and connector 4, such as... Figures 5-7As shown, the O-ring 45 is used to improve the sealing effect, which not only helps to increase the pressure of the gas in the air chamber 31, but also prevents air leakage between the connector 4 and the air storage component 3. For example, in one embodiment, the interface 33 is constructed with an internal thread, and the connector 4 is constructed with an external thread 21 adapted to the internal thread, so that the connector 4 is threadedly connected to the air storage component 3 through the mating of the external thread 21 and the internal thread. This not only enables a detachable connection between the connector 4 and the air storage component 3 for installation, subsequent maintenance and replacement, but also allows the entire pneumatic launcher to be made shorter, making the entire pneumatic launcher smaller and more compact, and more suitable for use on drones. Of course, a threaded connection can also be achieved by constructing an external thread 21 in the interface 33 and a matching internal thread in the connector 4.

[0040] like Figures 3-7 As shown, in this embodiment, one end of the connector 4 is provided with a plug hole 41. The shape of the plug hole 41 is adapted to the shape of one end of the gas cylinder 6. The inner diameter of the plug hole 41 is larger than the outer diameter of one end of the gas cylinder 6, so that one end of the gas cylinder 6 can be inserted into the plug hole 41. The plug hole 41 can be used to position the gas cylinder 6 for quick assembly, and can also stably press the gas cylinder 6 during the tightening of the gas cylinder 6 sleeve 5, effectively preventing the gas cylinder 6 from slipping off the connector 4 during the pressing process. The plug hole 41 also serves as a limiting constraint for the gas cylinder 6.

[0041] like Figures 3-7 As shown, a plug 42 for piercing the seal 61 of the gas cylinder 6 is provided inside the insertion hole 41. The plug 42 is constructed with a sharp structure, which facilitates easier piercing of the seal 61 of the gas cylinder 6. Meanwhile, as... Figures 5-7 As shown, the connector 4 is constructed with an air passage 43. One end of the air passage 43 passes through the plug 42, and the other end passes through the end of the connector 4 that is away from the plug 42, so that when the plug 42 is inserted into the gas cylinder 6, the air passage 43 can be connected to the gas cylinder 6 simultaneously.

[0042] like Figures 5-7 As shown, the gas cylinder 6 connection also includes a gas cylinder 6 sealing ring 44. The gas cylinder 6 sealing ring 44 is an annular structure with a central hole. During assembly, the gas cylinder 6 sealing ring 44 is positioned inside the insertion hole 41, and the plug 42 is located precisely within the central hole of the gas cylinder 6 sealing ring 44. Figures 5-7 As shown.

[0043] In this embodiment, as Figures 3-7 As shown, the main body 1 also includes a connecting structure and an exhaust port 22 constructed in the shell 2. The exhaust port 22 is connected to the connecting structure, which is connected to the inner cavity 51. Furthermore, when the gas cylinder 6 is not installed, the connector 4 is connected to the inner cavity 51. Figure 5As shown, this allows the interior of the main body 1 to be in a state of communication with the outside, avoiding the formation of negative pressure and facilitating the installation and removal of the gas cylinder 6 protective sleeve 5.

[0044] In implementation, the connecting structure can be implemented in various ways. For example, in one implementation, the connecting structure may include a first flow channel 71 disposed between the connector 4 and the housing 2, with the exhaust port 22 connected to the first flow channel 71, and the first flow channel 71 connected to the inner cavity 51. The first flow channel 71 can be implemented in various ways. For example, the connector 4 can be constructed as a rotating body structure for easy processing and forming; the maximum diameter of the connector 4 can be constructed to be smaller than the inner diameter of the housing 2, so that there is a gap between the side of the connector 4 and the housing 2. Figure 3 As shown, the gap is used to form the first flow channel 71; the exhaust port 22 is constructed at the position corresponding to the gap to achieve communication; of course, in a more complete solution, one or two planes 46 are also constructed on the side of the connector 4, such as Figures 4-7 As shown, the plane 46 can serve as a force-bearing area when assembling or disassembling the connector 4, making operation easier. Alternatively, the first flow channel 71 can be a groove constructed on the inner wall of the housing 2, with the grooves distributed axially. The end of the groove connects to the exhaust port 22 constructed on the housing 2. In this embodiment, the side of the connector 4 can be tightly against the inner wall of the housing 2. Furthermore, in implementation, the first flow channel 71 can also be a connecting hole constructed on the connector 4. One end of the connecting hole penetrates the end of the connector 4 facing the gas cylinder 6, and the other end penetrates the side wall of the housing 2, corresponding to the exhaust port 22 constructed on the housing 2, thus enabling communication between the exhaust port 22 and the inner cavity 51.

[0045] In this embodiment, the connector 4 is fixedly installed on the gas storage component 3, and the gas storage component 3 is also fixedly installed inside the housing 2, so that the exhaust port 22 can always be connected to the inner cavity 51 through the communication structure.

[0046] In practice, the other structures of the main body 1 can be the same as those disclosed in Chinese Patent CN211893653U. For example, the main body 1 also includes a ball storage module 9 for storing the glass breaker, a guide tube 8 for guiding the throwing process of the glass breaker ball, a locking mechanism for locking and unlocking the valve core 32, a control module for controlling the locking mechanism, etc., which will not be described in detail here.

[0047] In actual use, such as Figure 5As shown, when the gas cylinder 6 is not installed, the exhaust port 22 is connected to the inner cavity 51 through the connecting structure, and the gas chamber 31 is connected to the inner cavity 51 through the air passage 43. When installing the gas cylinder 6, first place one end of the gas cylinder 6 against the gas cylinder 6 sleeve 5, insert the bottle mouth end of the gas cylinder 6 into the insertion hole 41, and abut against the gas cylinder 6 sealing ring 44. At this time, the plug 42 is directly opposite the gas cylinder 6 seal 61; then rotate the gas cylinder 6 sleeve 5, so that the gas cylinder 6 sleeve 5 rotates relative to the housing 2, so as to gradually tighten the gas cylinder 6 sleeve 5. During this process, the gas cylinder 6 sleeve 5 axially compresses the gas cylinder 6, and the gas cylinder 6 axially compresses the gas cylinder 6 sealing ring 44, so that the gas cylinder 6 sealing ring 44 undergoes elastic deformation, so that the gas cylinder 6 seal 61 gradually contacts the plug 42 and is pierced by the plug 42; after tightening in place, as shown Figure 6 As shown, the gas cylinder 6 sheath 5 is threaded to the housing 2 and presses the gas cylinder 6 to the connector 4. The gas chamber 31 is connected to the gas cylinder 6 through the gas passage 43. The high-pressure gas of the gas cylinder 6 gradually enters the gas chamber 31 through the gas passage 43 until the pressure of the gas chamber 31 and the gas cylinder 6 reaches equilibrium. During this process, the gas passage 43 is no longer connected to the inner cavity 51. The exhaust port 22 is connected to the inner cavity 51 through the connecting structure.

[0048] When disassembling or replacing gas cylinder 6, such as Figure 7 As shown, first rotate the sleeve 5 of the gas cylinder 6 in the opposite direction a certain distance, so that the mouth of the gas cylinder 6 is disengaged from the sealing ring 44 of the gas cylinder 6 (there is a gap between the two). At this time, the sleeve 5 of the gas cylinder 6 and the shell 2 are still in a threaded connection state, as shown. Figure 7 As shown, then stop rotating the gas cylinder 6 sleeve 5. At this time, the gas chamber 31 is connected to the inner cavity 51 through the gas passage 43, as shown. Figure 7 As shown, gas cylinder 6 is also connected to the inner cavity 51. The pressurized gas in the gas chamber 31 and gas cylinder 6 can be discharged sequentially through the inner cavity 51, the connecting structure, and the exhaust port 22 to achieve safe depressurization. After depressurization is completed, the gas cylinder 6 sleeve 5 can be rotated again, which allows for safer disassembly and replacement of gas cylinder 6 and effectively protects the user.

[0049] Understandably, this design can also release the pressurized gas inside the gas chamber 31, making it safer.

[0050] Example 2

[0051] The main difference between this embodiment 2 and the above-described embodiment 1 is that the structure of the connecting structure in the pneumatic launcher provided in this embodiment is different. Specifically, in this embodiment, the connecting structure may include a first flow channel 71 disposed between the connector 4 and the housing 2, a second flow channel 72 disposed between the gas storage component 3 and the housing 2, an exhaust port 22 connected to the second flow channel 72, a second flow channel 72 connected to the first flow channel 71, and a first flow channel 71 connected to the inner cavity 51, so that the exhaust port 22 can sequentially connect to the inner cavity 51 through the second flow channel 72 and the first flow channel 71. Figure 8 As shown, the vent 22 can be positioned further away from the gas cylinder 6 sleeve 5 and the connector 4. On the one hand, a longer external thread 21 can be machined on the housing 2 to ensure a more secure connection between the gas cylinder 6 sleeve 5 and the housing 2, and the connection strength between the gas cylinder 6 sleeve 5 and the housing 2 will not be reduced due to the placement of the vent 22. On the other hand, by making the vent 22 further away from the gas cylinder 6 sleeve 5 that the user usually holds, the exhaust gas is further away from the user's hand, thereby effectively improving the safety of the exhaust.

[0052] In implementation, the first flow channel 71 can be implemented using the structure in Embodiment 1. For example, in this embodiment, the connector 4 can be constructed as a rotating body structure, and the maximum diameter of the connector 4 can be constructed to be smaller than the inner diameter of the housing 2, so that there is a gap between the side of the connector 4 and the housing 2. Figure 8 As shown, the first flow channel 71 is formed using the gap.

[0053] Similarly, in implementation, the second flow channel 72 can also be implemented in various ways. For example, the side of the end of the gas storage component 3 may have one or more planes 46, such as... Figure 8 As shown, the second flow channel 72 is formed between the plane 46 and the housing 2; by constructing one or more planes 46 on the side of the gas storage component 3, not only can the second flow channel 72 be formed, but it can also serve as a force point when assembling or disassembling the gas storage component 3, making it easier to operate.

[0054] For example, the second flow channel 72 can be a groove constructed on the inner side wall of the housing 2. The groove is distributed along the axial direction, with one end of the groove connected to the exhaust hole 22 constructed on the housing 2, and the other end of the groove connected to the first flow channel 71.

[0055] Furthermore, the second flow channel 72 can also be a connecting hole constructed in the gas storage component 3, such as... Figure 9 As shown, one end of the connecting hole penetrates the end of the gas storage component 3 facing the gas cylinder 6, and the other end of the connecting hole penetrates the side wall of the gas storage component 3 and corresponds to the exhaust hole 22 constructed in the shell 2, which can also realize the connection between the exhaust hole 22 and the inner cavity 51.

[0056] Example 3

[0057] During the installation of gas cylinder 6, the relative rotation between gas cylinder 6 and connector 4 can easily damage the sealing ring 44 of gas cylinder 6, leading to problems such as poor sealing and short service life. To solve this problem, the main difference between this embodiment 3 and the above embodiment 1 is that in the pneumatic launcher provided in this embodiment, the gas storage component 3 is rotatably disposed within the housing 2. For example, the housing 2 has a cylindrical assembly cavity 23. Correspondingly, the outer surface of one end of the gas storage component 3 is configured to fit the assembly cavity 23. Figure 10 As shown, it is also constructed as a cylindrical structure, with the gas storage component 3 inserted into the assembly cavity 23 and capable of rotating relative to the housing 2, as shown. Figure 10 As shown; the gas storage component 3 has an annular groove 34, and the housing 2 has a threaded hole 24 that fits the annular groove 34, such as... Figure 10 As shown, the threaded hole 24 is threadedly connected to the limiting member 25, and the end of the limiting member 25 is inserted into the annular groove 34, as shown. Figure 10 As shown, the engagement between the limiting component 25 and the annular groove 34 only restricts the axial movement of the gas storage component 3, but does not restrict the rotation of the gas storage component 3. In this way, during the installation of the gas cylinder 6, the gas storage component 3, the connector 4, and the gas cylinder 6 sealing ring 44 can rotate synchronously with the gas cylinder 6, thereby effectively preventing the gas cylinder 6 and the connector 4 from rotating relative to each other. This can protect the gas cylinder 6 sealing ring 44, which not only helps to seal more tightly and prevents gas leakage, but also effectively extends the service life of the gas cylinder 6 sealing ring 44.

[0058] At this time, since the connector 4 is installed on the gas storage component 3, the connector 4 can rotate relative to the housing 2 under the drive of the gas storage component 3, causing the exhaust port 22 to not always maintain communication with the inner cavity 51. To solve this technical problem, in a further embodiment, an annular flow channel 35 is constructed on the outer side of the connector 4 or the inner wall of the housing 2, such as... Figure 10 As shown, one end of the first flow channel 71 is connected to the annular flow channel 35, and the exhaust port 22 corresponds to and is connected to the annular flow channel 35. This allows the annular flow channel 35 to connect the exhaust port 22 to the first flow channel 71. Since the annular flow channel 35 forms a ring along the outer surface of the connector 4, the exhaust port 22 remains connected to the inner cavity 51 regardless of how the gas storage component 3 rotates. This not only ensures the reliability of the exhaust function but also makes it safer to use.

[0059] In practice, the limiting element 25 can be a bolt, screw, or threaded rod, etc.

[0060] Example 4

[0061] During the installation of gas cylinder 6, the relative rotation between gas cylinder 6 and connector 4 can easily damage the sealing ring 44 of gas cylinder 6, leading to problems such as poor sealing and short service life. To solve this problem, the main difference between this embodiment 4 and the above-mentioned embodiment 2 is that in the pneumatic launcher provided in this embodiment, the gas storage component 3 is rotatably disposed within the housing 2. For example, the housing 2 has a cylindrical assembly cavity 23. Correspondingly, one end of the gas storage component 3 is configured to fit into the assembly cavity 23. The gas storage component 3 is inserted into the assembly cavity 23 and can rotate relative to the housing 2. Figure 11 and Figure 12 As shown, the gas storage component 3 and the housing 2 form a rotating pair; the gas storage component 3 is constructed with an annular groove 34, and the housing 2 is constructed with a threaded hole 24 that fits the annular groove 34, as shown. Figure 12 As shown, the threaded hole 24 is threadedly connected to the limiting member 25, and the end of the limiting member 25 is inserted into the annular groove 34, as shown. Figure 12 As shown, the engagement between the limiting component 25 and the annular groove 34 only restricts the axial movement of the gas storage component 3, but does not restrict the rotation of the gas storage component 3. In this way, during the installation of the gas cylinder 6, the gas storage component 3, the connector 4, and the gas cylinder 6 sealing ring 44 can rotate synchronously with the gas cylinder 6, thereby effectively preventing the gas cylinder 6 and the connector 4 from rotating relative to each other. This can protect the gas cylinder 6 sealing ring 44, which not only helps to seal more tightly and prevents gas leakage, but also effectively extends the service life of the gas cylinder 6 sealing ring 44.

[0062] At this time, since the gas storage component 3 can rotate relative to the housing 2, the exhaust port 22 cannot always maintain communication with the inner cavity 51. To solve this technical problem, in a further embodiment, an annular flow channel 35 is constructed on the outer side of the gas storage component 3 or the inner wall of the housing 2, such as... Figure 11 and Figure 12 As shown, one end of the second flow channel 72 is connected to the annular flow channel 35, and the exhaust port 22 corresponds to and is connected to the annular flow channel 35. This allows the annular flow channel 35 to connect the exhaust port 22 to the second flow channel 72. Since the annular flow channel 35 forms a ring around the outer surface of the gas storage component 3, the exhaust port 22 remains connected to the inner cavity 51 regardless of how the gas storage component 3 rotates. This not only ensures the reliability of the exhaust function but also makes it safer to use.

[0063] In practice, the limiting element 25 can be a bolt, screw, or threaded rod, etc.

[0064] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A pneumatic launcher, characterized in that, The device includes a transmitter body, which comprises a main body and a gas cylinder sleeve. The main body includes a housing, one end of which is provided with a gas cylinder connection portion. The gas cylinder connection portion includes a connector for connecting a gas cylinder. The gas cylinder sleeve has an inner cavity for accommodating the gas cylinder and is threadedly connected to the housing. The main body also includes a connecting structure and an exhaust port formed in the housing. The exhaust port is connected to the connecting structure, and the connecting structure is connected to the inner cavity. When no gas cylinder is installed, the connector is connected to the inner cavity.

2. The pneumatic launcher according to claim 1, characterized in that, One end of the connector is provided with a plug hole, and a plug for piercing the gas cylinder seal is provided in the plug hole; the connector is provided with an air passage, one end of which passes through the plug and the other end of which passes through the connector. The gas cylinder connection part also includes a gas cylinder sealing ring, which is disposed in the insertion hole, and the plug is located in the center hole of the gas cylinder sealing ring.

3. The pneumatic launcher according to claim 1 or 2, characterized in that, The connecting structure includes a first flow channel disposed between the connector and the housing, an exhaust port connected to the first flow channel, and the first flow channel connected to the inner cavity.

4. The pneumatic launcher according to claim 3, characterized in that, It also includes a gas storage component, which has a gas chamber inside and an interface at its rear end. The gas storage component is rotatably disposed inside the housing, and the connector is connected to the interface. The connector is used to connect the gas cylinder and the gas chamber. The outer side of the connector or the inner wall of the housing is formed with an annular flow channel. One end of the first flow channel is connected to the annular flow channel. The exhaust port corresponds to the annular flow channel and is connected to the annular flow channel.

5. The pneumatic launcher according to claim 1 or 2, characterized in that, It also includes a gas storage component, which has a gas chamber inside and an interface at its rear end. The gas storage component is located inside the housing, and the connector is connected to the interface. The connector is used to connect the gas cylinder and the gas chamber.

6. The pneumatic launcher according to claim 5, characterized in that, The communication structure includes a first flow channel disposed between the connector and the housing, a second flow channel disposed between the gas storage component and the housing, an exhaust port connected to the second flow channel, the second flow channel connected to the first flow channel, and the first flow channel connected to the inner cavity.

7. The pneumatic launcher according to claim 6, characterized in that, The side of the gas storage component end has one or more planes, and the gap between the planes and the housing forms the second flow channel; The gas cylinder connection part also includes an external thread constructed in the shell, and the gas cylinder sleeve is constructed with an internal thread adapted to the external thread. The gas cylinder sleeve is connected to the shell through the mating of the internal thread and the external thread.

8. The pneumatic launcher according to claim 6, characterized in that, The gas storage component is rotatably disposed inside the housing. An annular flow channel is formed on the outer side of the gas storage component or the inner wall of the housing. One end of the second flow channel is connected to the annular flow channel. The exhaust port corresponds to the annular flow channel and is connected to the annular flow channel.

9. The pneumatic launcher according to claim 8, characterized in that, The outer surface of the gas storage component has a ring-shaped groove, and the housing has a threaded hole that fits the ring-shaped groove. The threaded hole is threadedly connected to a limiting member, and the end of the limiting member is inserted into the ring-shaped groove.

10. The pneumatic launcher according to claim 1, characterized in that, It also includes a gas cylinder, which is disposed inside the gas cylinder sleeve. One end of the gas cylinder abuts against the gas cylinder sleeve, and the other end abuts against the connector. The gas cylinder sleeve is threadedly connected to the housing and presses the gas cylinder against the connector.

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