Quick release structure of inflation equipment

Abstract

The utility model provides a quick release structure of inflation equipment, and belongs to the technical field of gas processing. The gas cylinder fixing frame is divided into the upper hoop and the lower hoop, one end of the upper hoop and one end of the lower hoop are hinged to each other, and the other end of the upper hoop and the other end of the lower hoop are locked or unlocked through the butterfly nut locking piece, so that an operator can directly open or lock the gas cylinder fixing frame manually, tool operation is not needed, dismounting and mounting of a gas cylinder are facilitated, and the working efficiency is improved. Meanwhile, the inflation connector is in threaded connection with the gas cylinder control valve on the gas cylinder through the connecting cavity in the shell of the inflation connector, the handle is installed on the outer wall of the shell in the radial direction of the shell, the force arm during rotation of the shell is increased through the handle, and therefore the inflation connector and the gas cylinder control valve can be conveniently and detachably connected, and disassembly and assembly are more labor-saving; and meanwhile, tool operation is not needed, dismounting and mounting are more convenient, overhauling, replacing and gas supplementing of the gas cylinder are further facilitated, the use efficiency is improved, and the use requirement for quick dismounting of the inflation equipment is met.

Description

Technical Field

[0001] The utility model relates to the technical field of gas processing, in particular to a quick-disassembly structure of an inflatable device. Background Art

[0002] After preparation, special gases need to be stored in larger gas cylinders. When used subsequently, the special gases stored in the larger gas cylinders can be divided into multiple smaller gas cylinders to achieve divided packaging and use of the gas.

[0003] At present, the existing gas cylinder fixing structures on the market, such as the patent CN116857549A, discloses a gas cylinder filling device for hydrogen production, in which a hydrogen cylinder is arranged on the inner side of the fixing device, and the fixing device includes a first connecting ring and a second connecting ring, and the two ends of the first connecting ring and the second connecting ring are connected to form a ring structure, and the hydrogen cylinder is placed between the first connecting ring and the second connecting ring, and the hydrogen cylinder is fixed at the same time. Although the above structure can fix the hydrogen cylinder, both ends of the first connecting ring and the second connecting ring are locked by bolts, and when disassembling and assembling, it is necessary to use tools such as wrenches to operate. In addition, the bolts after disassembly are easy to lose, which is inconvenient to disassemble and assemble, and it is not convenient to inspect, replace and refill the gas cylinder.

[0004] In addition, the existing inflatable joints on the market, such as the existing inflatable joints disclosed in the background technology of patent CN110486621B, have a gas nozzle assembly seat, the gas nozzle assembly seat has an assembly wall defining an assembly hole, the assembly wall has an internal thread facing the assembly hole, and a rotating control portion protruding from the extension ring seat. When in use, the gas nozzle is inserted into the assembly hole of the gas nozzle assembly seat, and then the rotating control portion of the gas nozzle assembly seat is held and rotated to install the gas nozzle on the inflatable joint, so as to achieve the connection between the gas nozzle of the gas cylinder and the inflatable joint. Although the above structure can achieve the connection between the gas nozzle and the inflatable joint, the outer wall of the rotating control portion is only provided with surface anti-slip teeth. When rotating, a large gripping force is required to hold the rotating control portion, and then a large force is required to twist the rotating control portion, which is not convenient for the quick disassembly and assembly of the inflatable joint and the gas nozzle of the gas cylinder. When the gas in the gas cylinder is used up or the gas cylinder is damaged, it is difficult to remove the inflatable joint from the gas cylinder when it is necessary to replenish gas or inspect and replace the gas cylinder, which is inconvenient to use.

[0005] In summary, the existing gas cylinder fixing structure used to fix the gas cylinder and the gas joint connected to the gas nozzle of the gas cylinder are inconvenient to disassemble and assemble, which affects the use efficiency. Summary of the invention

[0006] In view of the above-mentioned problems existing in the prior art, the present invention aims to provide a quick-release structure of an inflation device, so that a gas cylinder fixing bracket is arranged on the frame, and the gas cylinder fixing bracket is provided with a butterfly nut locking piece, which realizes the quick opening and locking of the gas cylinder fixing bracket, facilitates the disassembly and assembly of the gas cylinder on the gas cylinder fixing bracket, and is beneficial to the later maintenance and replacement. In addition, the inflation connector connected to the gas cylinder control valve on the gas nozzle of the gas cylinder adopts a shell structure with a handle, so that the operator can twist the shell through the handle, which facilitates the disassembly and assembly between the inflation connector and the gas cylinder control valve of the gas cylinder, further improves the convenience of disassembly and assembly of the inflation device, facilitates the maintenance, replacement or gas replenishment of the gas cylinder, and improves the use efficiency of the inflation device.

[0007] The specific technical solutions are as follows:

[0008] A quick-release structure of an inflatable device comprises a gas cylinder fixing frame and an inflatable joint, a gas cylinder is mounted on the gas cylinder fixing frame, a gas cylinder control valve on a gas nozzle of the gas cylinder is connected to the inflatable joint, and has the following characteristics:

[0009] The gas cylinder fixing frame comprises a lower clamp and an upper clamp, both of which are arranged in an arc shape, the lower clamp is fixedly mounted on the frame, the upper clamp is arranged above the lower clamp, and the arc openings of the upper clamp and the lower clamp are arranged oppositely, the gas cylinder is installed between the upper clamp and the lower clamp, one end of the upper clamp is hinged to one end of the lower clamp, and a butterfly nut locking piece is arranged between the other end of the upper clamp and the other end of the lower clamp;

[0010] The inflation joint includes a shell, a spherical joint and a handle. The shell is arranged in a cylindrical shape, and the cylindrical cavity at the lower end of the shell is expanded to form a connecting cavity, and an internal thread connected to the outlet of the gas cylinder control valve on the gas nozzle of the gas cylinder is provided on the inner wall of the connecting cavity. The spherical joint is a hollow columnar structure. One end of the spherical joint is penetrated into the cylindrical cavity of the shell and extends into the connecting cavity, and the other end of the spherical joint extends out of the shell and is connected to an external gas product through a pipeline. One end of the handle is connected to the shell and is arranged to extend radially along the shell.

[0011] The above-mentioned quick-release structure of an inflatable device, wherein the butterfly nut locking part includes a screw and a butterfly nut, and the other ends of the upper clamp and the lower clamp are both provided with a bayonet, one end of the screw is hinged in the bayonet of the lower clamp, and the other end of the screw is threadedly connected with the butterfly nut, and the end of the screw on which the butterfly nut is installed is selectively inserted into the bayonet of the upper clamp.

[0012] In the above-mentioned quick-release structure of an inflatable device, rubber pads are provided on the inner walls of the arc-shaped openings of the upper clamp and the lower clamp.

[0013] The above-mentioned quick-release structure of an inflatable device, wherein a hinged connecting rod is provided between one end where the upper clamp and the lower clamp are hinged to each other, the lower end of the hinged connecting rod is hinged to one end of the lower clamp, and the upper end of the hinged connecting rod is hinged to the other end of the upper clamp.

[0014] The above-mentioned quick-release structure of an inflatable device, wherein a protruding stop edge is provided on the outer wall of one end of the ball joint extending into the connecting cavity, one side of the stop edge abuts against the bottom of the connecting cavity, and an annular groove is provided on the outer wall of one end of the ball joint extending outside the shell, a retaining spring is provided in the groove, and one side of the retaining spring abuts against the end face of the shell facing away from the end where the connecting cavity is provided.

[0015] In the above-mentioned quick-release structure of an inflatable device, a sealing ring is also sleeved on the outside of the spherical joint, one side of the sealing ring abuts against the retaining edge, and the other side of the sealing ring abuts against the bottom of the connecting cavity.

[0016] The above-mentioned quick-release structure of an inflatable device, wherein two mounting holes are symmetrically opened on the outer wall of the shell away from the end where the connecting cavity is set, the mounting holes are all threaded holes and are arranged along the radial direction of the shell, and one end of the handle connected to the shell is threadedly connected to the mounting hole.

[0017] The above-mentioned quick-release structure of an inflatable device also includes a dustproof cover, which includes a connecting column and a cover body. A protruding connecting column is provided on one end surface of the cover body, and the connecting column selectively extends into the connecting cavity of the shell and is detachably connected to the shell. When the connecting column is connected to the shell, the cover body seals the cavity opening of the connecting cavity.

[0018] In the above-mentioned quick-release structure of an inflatable device, the connecting column is a hollow structure with an opening, and when the connecting column extends into the connecting cavity and is connected to the shell, the end of the spherical joint extending into the connecting cavity extends into the hollow of the connecting column.

[0019] In the above-mentioned quick-release structure of an inflatable device, a first connecting hole is provided on the cover body, a second connecting hole is provided on the shell body, and a connecting rope is provided between the first connecting hole and the second connecting hole.

[0020] The positive effects of the above technical solution are:

[0021] The quick-release structure of the above-mentioned inflation device adopts the structure of an upper clamp and a lower clamp for fixing the gas cylinder by adopting a gas cylinder fixing frame for fixing the gas cylinder, and one end of the upper clamp and the lower clamp are hinged to each other, and a butterfly nut locking piece is provided between the other ends, so that the operator can manually twist the butterfly nut to unlock the upper clamp and the lower clamp, thereby facilitating the disassembly and assembly of the gas cylinder on the gas cylinder fixing frame and facilitating the inspection and replacement of the gas cylinder. In addition, the shell of the inflation connector installed on the outlet of the gas cylinder control valve of the gas cylinder is connected to the gas cylinder control valve by a threaded connection. At the same time, an extended handle is provided on the outer wall of the shell along its radial direction, and a rotating force arm of the shell is increased by the handle, which facilitates the disassembly and connection of the inflation connector and the gas cylinder control valve, thereby facilitating the use of the inflation connector, thereby facilitating the inspection, replacement or gas replenishment of the gas cylinder, improving the use efficiency, and meeting the use requirements of the quick-release of the inflation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of an embodiment of a quick-release structure of an inflatable device of the utility model;

[0023] Figure 2 A schematic diagram of the installation of a gas cylinder fixing bracket according to a preferred embodiment of the utility model from one perspective;

[0024] Figure 3 It is a schematic diagram of the installation of a gas cylinder fixing frame of a preferred embodiment of the utility model from another perspective;

[0025] Figure 4 It is a half-section schematic diagram of an inflation connector according to a preferred embodiment of the utility model.

[0026] In the attached drawings: 1. Gas cylinder fixing frame; 11. Lower clamp; 12. Upper clamp; 13. Frame; 14. Butterfly nut locking piece; 15. Rubber pad; 16. Articulated connecting rod; 111. Bayonet; 141. Screw; 142. Butterfly nut; 2. Inflatable joint; 21. Shell; 22. Ball joint; 23. Handle; 24. Retaining spring; 25. Sealing ring; 26. Dustproof plug cover; 211. Connecting cavity; 212. Internal thread; 213. Mounting hole; 221. Guard edge; 222. Slot; 261. Connecting column; 262. Cover; 3. Gas cylinder; 31. Gas cylinder control valve; 4. External gas products. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments are combined with the attached Figure 1 To Attachment Figure 4 The technical solution provided by the utility model is described in detail, but the following content is not intended to limit the utility model.

[0028] Figure 1FIG. 1 is a structural diagram of an embodiment of a quick-release structure of an inflatable device of the utility model. Figure 1 As shown, the quick-release structure of the inflation device provided in this embodiment includes: a gas cylinder fixing frame 1 and an inflation connector 2. The gas cylinder 3 is fixed by the gas cylinder fixing frame 1, and it is also convenient to disassemble the gas cylinder 3 from the gas cylinder fixing frame 1, which is beneficial to the later inspection, replacement and gas replenishment of the gas cylinder 3. At the same time, the gas cylinder control valve 31 on the gas nozzle of the gas cylinder 3 is connected with the inflation connector 2, and is connected to the external gas product 4 to be inflated through the inflation connector 2 to realize gas supply. In addition, the inflation connector 2 realizes the rapid disassembly and assembly with the gas nozzle of the gas cylinder 3, so that the disassembly and assembly process between the inflation connector 2 and the gas cylinder control valve 31 on the gas nozzle of the gas cylinder 3 can be more convenient to operate, which is convenient for the subsequent inspection, replacement and gas replenishment of the gas cylinder 3, improves the use efficiency, and meets the quick-release requirements of the inflation device.

[0029] Figure 2 A schematic diagram of the installation of a gas cylinder fixing bracket according to a preferred embodiment of the utility model from one perspective; Figure 3 This is a schematic diagram of the installation of a gas cylinder fixing bracket from another perspective of a preferred embodiment of the utility model. Figure 1 , Figure 2 as well as Figure 3 As shown, the gas cylinder fixing frame 1 is installed on the frame 13 of the inflatable equipment. At this time, the gas cylinder fixing frame 1 also includes a lower clamp 11 and an upper clamp 12, and the lower clamp 11 and the upper clamp 12 are both arranged in an arc shape, so that the contour shape of the upper clamp 12 and the lower clamp 11 can be consistent with the outer contour of the gas cylinder 3 to be fixed, which provides conditions for the subsequent stable fixing of the gas cylinder 3. At this time, the lower clamp 11 is fixedly installed on the frame 13. Preferably, the lower clamp 11 and the frame 13 are welded, with high connection strength and strong bearing capacity. In addition, the upper clamp 12 is arranged above the lower clamp 11, and the arc openings of the upper clamp 12 and the lower clamp 11 are arranged relative to each other, so that the upper clamp 12 and the lower clamp 11 can form an approximately annular structure, which provides conditions for the subsequent wrapping of the gas cylinder 3. When the upper clamp 12 and the lower clamp 11 are arranged relatively, the gas cylinder 3 to be fixed is installed between the upper clamp 12 and the lower clamp 11. At this time, one end of the upper clamp 12 is hinged to one end of the lower clamp 11. At the same time, a butterfly nut locking piece 14 is provided between the other end of the upper clamp 12 and the other end of the lower clamp 11, so that the upper clamp 12 and the other end of the lower clamp 11 can be locked or unlocked by the butterfly nut locking piece 14. When the butterfly nut locking piece 14 is locked, the upper clamp 12 and the lower clamp 11 clamp the upper and lower parts of the gas cylinder 3 respectively to fix the gas cylinder 3. When the butterfly nut locking piece 14 is unlocked, the upper clamp 12 can be flipped around the hinge between it and the lower clamp 11, thereby opening the gas cylinder fixing frame 1, which is convenient for the inspection, replacement and gas replenishment of the gas cylinder 3.

[0030] Figure 4FIG. 1 is a half-section schematic diagram of an inflatable connector of a preferred embodiment of the utility model. Figure 1 and Figure 4 As shown, the inflatable connector 2 connected to the gas cylinder 3 through the inflatable tube further comprises a shell 21, a spherical connector 22 and a handle 23. At this time, the shell 21 is arranged in a cylindrical shape, and at the same time, the cylindrical cavity at the lower end of the shell 21 is arranged in an expanded shape, so as to form a connecting cavity 211 at the cavity opening of the cylindrical cavity at the lower end of the shell 21, which facilitates the subsequent connection of the shell 21 with the gas cylinder control valve 31 on the gas nozzle of the gas cylinder 3. In addition, an internal thread 212 connected to the outlet of the gas cylinder control valve 31 is provided on the inner wall of the connecting cavity 211, that is, when the shell 21 is subsequently connected to the outlet of the gas cylinder control valve 31 on the gas nozzle of the gas cylinder 3, the outlet of the gas cylinder control valve 31 is inserted into the connecting cavity 211, and the shell 21 is screwed to realize the threaded connection between the shell 21 and the outlet of the gas cylinder control valve 31, so that the inflatable connector 2 is stably connected to the gas cylinder control valve 31 of the gas cylinder 3, meeting the use requirements of reliable inflating. In addition, the spherical joint 22 is a hollow columnar structure, that is, the spherical joint 22 is a tube body with a certain length. At this time, one end of the spherical joint 22 is inserted into the cylindrical cavity of the shell 21 and extends into the connecting cavity 211. That is, when the shell 21 is connected to the gas cylinder control valve 31 on the gas nozzle of the gas cylinder 3 through the connecting cavity 211, the end of the spherical joint 22 extending into the connecting cavity 211 can be connected with the outlet of the gas cylinder control valve 31. At the same time, the other end of the spherical joint 22 extends out of the shell 21 and is connected to the external gas product 4 through a pipeline. That is, the gas in the gas cylinder 3 can enter the external gas product 4 through the spherical joint 22, thereby realizing the conduction of the gas path and meeting the inflation demand. At the same time, one end of the handle 23 is connected to the shell 21 and extended radially along the shell 21, that is, the radial length of the shell 21 is extended by the handle 23, so that the handle 23 can be used as a force arm when the operator drives, and the force arm for twisting the shell 21 to rotate is increased, thereby making the threaded connection between the shell 21 and the air nozzle more labor-saving, more convenient to operate, and more efficient in disassembly and assembly.

[0031] More specifically, the butterfly nut locking member 14 disposed between the upper clamp 12 and the lower clamp 11 further includes a screw rod 141 and a butterfly nut 142. At this time, a slot 222 is provided at the other end of the upper clamp 12 and the lower clamp 11, and the slot 222 is a structure with both the side and the upper and lower ends being open, which facilitates the subsequent deflection of the screw rod 141 in the slot 222. At this time, one end of the screw rod 141 is hinged in the slot 222 of the lower clamp 11, so that the screw rod 141 can deflect upward or downward on the lower clamp 11, and at the same time, it also prevents the screw rod 141 from falling off from the lower clamp 11, thereby avoiding the problem of the screw rod 141 being easily lost after being disassembled, and is more convenient to use. In addition, a butterfly nut 142 is threadedly connected to the other end of the screw rod 141, and one end of the screw rod 141 equipped with the butterfly nut 142 is selectively inserted into the slot 222 of the upper clamp 12, that is, when the gas cylinder 3 needs to be fixed, the upper clamp 12 is turned over on the lower clamp 11 to clamp the gas cylinder 3. At this time, the screw rod 141 is deflected upward so that the end of the screw rod 141 with the butterfly nut 142 is inserted into the slot 222 of the upper clamp 12. 22, and then the operator manually twists the butterfly nut 142, and the butterfly nut 142 presses the upper clamp 12, thereby locking the upper clamp 12 and the lower clamp 11; when the gas cylinder 3 needs to be removed, the operator only needs to loosen the butterfly nut 142, and then deflect the screw 141 downward, so that the screw 141 is disengaged from the slot 222 of the upper clamp 12, and then flip the upper clamp 12 to open the gas cylinder fixing frame 1, thereby removing the gas cylinder 3. It is worth pointing out that the butterfly nut 142 can be directly twisted by human fingers, without the need for additional tools for disassembly, which makes disassembly and assembly more convenient, improves disassembly efficiency, and has a more reasonable structural design.

[0032] More specifically, rubber pads 15 are provided on the inner walls of the arc-shaped openings of the upper clamp 12 and the lower clamp 11. The rubber pads 15 contact the gas cylinder 3, thereby avoiding the problem of mutual wear caused by the upper clamp 12 and the lower clamp 11 directly contacting the outer wall of the gas cylinder 3, thereby extending the service life. In addition, the rubber pads 15 increase the friction between the gas cylinder 3 and the lower clamp 11, thereby preventing the gas cylinder 3 from axial movement during transportation and use, and improving the stability of the installation of the gas cylinder 3. Moreover, by replacing the rubber pads 15 of different thicknesses, it is possible to adapt to the installation of gas cylinders 3 of different diameters, so that the structure is more flexible and has better adaptability.

[0033] More specifically, an articulated connecting rod 16 is further provided between the ends at which the upper clamp 12 and the lower clamp 11 are hinged to each other. At this time, the lower end of the articulated connecting rod 16 is hinged to one end of the lower clamp 11, and the upper end of the articulated connecting rod 16 is hinged to the other end of the upper clamp 12. That is, the articulated connecting rod 16 is used as a transition structure between the upper clamp 12 and the lower clamp 11, which increases the flexibility of the hinged joint between the upper clamp 12 and the lower clamp 11, further facilitates the opening and locking of the gas cylinder fixing frame 1, and further improves the quick release characteristics.

[0034] More specifically, a protruding retaining edge 221 is provided on the outer wall of one end of the ball joint 22 extending into the connecting cavity 211. The retaining edge 221 is a structure that surrounds the outer wall of the ball joint 22 in a circle. At this time, when the ball joint 22 is installed in the housing 21, one side of the retaining edge 221 abuts against the bottom of the connecting cavity 211, thereby limiting one end of the ball joint 22 and the housing 21. At the same time, an annular groove 222 is provided on the outer wall of the end of the ball joint 22 extending out of the housing 21. At this time, a retaining spring 24 is provided in the groove 222, and the retaining spring 24 is fixed on the outer wall of the ball joint 22. After being inserted into the slot 222, one side of the retaining spring 24 abuts against the end face of the shell 21 which is away from the end where the connecting cavity 211 is provided, that is, the other end of the spherical joint 22 is limited to the shell 21 by the slot 222 and the retaining spring 24, that is, along the axial direction of the spherical joint 22, the two ends of the spherical joint 22 can be limited by the stop edge 221 and the retaining spring 24 respectively, thereby limiting the axial movement of the spherical joint 22 in the shell 21, and at the same time maintaining the circumferential rotation of the spherical joint 22 in the shell 21, which facilitates the subsequent connection requirement of the shell 21 being screwed on the outlet of the gas cylinder control valve 31.

[0035] More specifically, a sealing ring 25 is also sleeved on the outside of the spherical joint 22. At this time, one side of the sealing ring 25 is pressed against the retaining edge 221, and at the same time, the other side of the sealing ring 25 is pressed against the bottom of the connecting cavity 211. The sealing ring 25 realizes the sealing between the shell 21 and the spherical joint 22, so that when the shell 21 is subsequently connected to the outlet of the gas cylinder control valve 31, it can prevent gas from leaking from the connection between the spherical joint 22 and the shell 21, and the sealing is better and the safety is higher.

[0036] More specifically, two mounting holes 213 are symmetrically provided on the outer wall of the shell 21 away from the end where the connecting cavity 211 is provided. At this time, each mounting hole 213 is a threaded hole, and each mounting hole 213 is arranged along the radial direction of the shell 21, so that when the handle 23 is subsequently installed on the shell 21, the handle 23 can be installed on the shell 21 through the mounting holes 213, and one end of the handle 23 connected to the shell 21 is threadedly connected to the mounting hole 213, that is, the threaded installation of the handle 23 on the shell 21 is realized, and the processing is more convenient. In addition, the handle 23 can be disassembled later to maintain the same or similar structure as the existing inflation joint 2, and the structural flexibility is higher.

[0037] More specifically, one end of the shell 21 provided with the connection cavity 211 is also provided with a dustproof plug cover 26, and the dustproof plug cover 26 is preferably made of rubber material, that is, when the inflation joint 2 is not in use, the connection cavity 211 can be sealed by the dustproof plug cover 26 to prevent dust and other impurities from entering the connection cavity 211 and the hollow of the ball joint 22, and to prevent the occurrence of connection gaps and polluted gas when the subsequent shell 21 is connected to the gas cylinder control valve 31, thereby affecting the purity of the gas. At this time, the dustproof plug cover 26 includes a connection column 261 and a cover body 262, and a protruding connection column 261 is provided on one end surface of the cover body 262, and the connection column 261 is selectively extended into the connection cavity 211 of the shell 21 and detachably connected to the shell 21. Preferably, after the connecting column 261 is inserted into the connecting cavity 211, the connecting column 261 is deformed and squeezed with the internal thread 212 on the inner wall of the connecting cavity 211 to achieve the connection of the connecting column 261 in the connecting cavity 211. When the connecting column 261 needs to be removed, it is only necessary to pull out the connecting column 261 with external force, which is more convenient for disassembly and assembly. It is worth pointing out that when the connecting column 261 is connected to the shell 21, the cover body 262 can seal the cavity opening of the connecting cavity 211, thereby sealing the cavity opening of the connecting cavity 211 of the shell 21, preventing dust and other impurities from entering, and achieving a better protective effect.

[0038] More specifically, the connecting column 261 of the dustproof plug cover 26 is a hollow structure with an opening. At this time, the hollow opening of the connecting column 261 is located at the end of the connecting column 261 away from the cover body 262, so that when the connecting column 261 is extended into the connecting cavity 211 and connected to the shell 21, the end of the ball joint 22 extended into the connecting cavity 211 can be extended into the hollow of the connecting column 261, which can prevent the ball joint 22 from blocking the connecting column 261 extending into the connecting cavity 211, and can also make the connecting column 261 extend into the connecting cavity 211 longer, the contact area is larger, and the installation stability is higher.

[0039] As a preferred embodiment, a first connecting hole can be opened on the outer edge of the cover body 262, and at the same time, a second connecting hole can be opened on the side wall of the shell 21, and the first connecting hole and the second connecting hole are connected by a connecting rope, thereby realizing a flexible connection between the dustproof cover 26 and the shell 21, preventing the dustproof cover 26 from being easily lost after disassembly, and making the structural design more reasonable.

[0040] The quick-release structure of the inflatable device provided in this embodiment includes a gas cylinder fixing frame 1 and an inflatable joint 2; the gas cylinder fixing frame 1 is divided into an upper clamp 12 and a lower clamp 11, and one end of the upper clamp 12 and the lower clamp 11 are hinged to each other, and the other end is locked or unlocked by a butterfly nut locking member 14, so that the operator can directly manually open or lock the gas cylinder fixing frame 1 without the need for tool operation, which facilitates the disassembly and assembly of the gas cylinder 3, and facilitates the inspection, replacement and gas replenishment of the gas cylinder 3. At the same time, the inflatable joint 2 is connected with the outlet thread of the gas cylinder control valve 31 of the gas cylinder 3 by the connecting cavity 211 on its shell 21, and a handle 23 is installed on the outer wall of the shell 21 along its radial direction. The handle 23 increases the force arm when the shell 21 rotates, thereby facilitating the disassembly and connection of the inflatable joint 2 and the gas cylinder control valve 31, and the disassembly and assembly is more labor-saving, and there is no need for tool operation, so the disassembly and assembly is more convenient, which further facilitates the inspection, replacement and gas replenishment of the gas cylinder 3, improves the use efficiency, and meets the use requirements of the inflatable device quick release.

[0041] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-release structure of an inflatable device, comprising a gas cylinder fixing frame and an inflatable joint, wherein a gas cylinder is mounted on the gas cylinder fixing frame, and a gas cylinder control valve on a gas nozzle of the gas cylinder is connected to the inflatable joint, characterized in that: The gas cylinder fixing frame comprises a lower clamp and an upper clamp, the lower clamp and the upper clamp are both arranged in an arc shape, the lower clamp is fixedly mounted on the frame, the upper clamp is arranged above the lower clamp, and the arc openings of the upper clamp and the lower clamp are arranged oppositely, the gas cylinder is installed between the upper clamp and the lower clamp, one end of the upper clamp is hinged to one end of the lower clamp, and a butterfly nut locking piece is arranged between the other end of the upper clamp and the other end of the lower clamp; The inflation joint includes a shell, a spherical joint and a handle. The shell is arranged in a cylindrical shape, and the cylindrical cavity at the lower end of the shell is expanded to form a connecting cavity, and an internal thread connected to the outlet of the gas cylinder control valve on the gas nozzle of the gas cylinder is provided on the inner wall of the connecting cavity. The spherical joint is a hollow columnar structure, one end of the spherical joint is passed through the cylindrical cavity of the shell and extends into the connecting cavity, the other end of the spherical joint extends out of the shell and is connected to an external gas product through a pipeline, and one end of the handle is connected to the shell and is arranged to extend radially along the shell.

2. The quick-release structure of the inflatable device according to claim 1, characterized in that: The butterfly nut locking piece includes a screw and a butterfly nut. The other ends of the upper clamp and the lower clamp are both provided with a bayonet. One end of the screw is hinged in the bayonet of the lower clamp, and the other end of the screw is threadedly connected to the butterfly nut, and the end of the screw on which the butterfly nut is installed is selectively inserted into the bayonet of the upper clamp.

3. The quick-release structure of the inflatable device according to claim 1, characterized in that: Rubber pads are arranged on the inner walls of the arc-shaped openings of the upper clamp and the lower clamp.

4. The quick-release structure of the inflatable device according to claim 1, characterized in that: A hinged connecting rod is provided between the ends at which the upper clamp and the lower clamp are hinged to each other, the lower end of the hinged connecting rod is hinged to one end of the lower clamp, and the upper end of the hinged connecting rod is hinged to the other end of the upper clamp.

5. The quick-release structure of the inflatable device according to claim 1, characterized in that: A protruding stop edge is provided on the outer wall of one end of the spherical joint extending into the connecting cavity, and one side of the stop edge abuts against the bottom of the connecting cavity. An annular groove is provided on the outer wall of one end of the spherical joint extending outside the shell, and a retaining spring is provided in the groove, and one side of the retaining spring abuts against the end face of the shell facing away from the end where the connecting cavity is provided.

6. The quick-release structure of the inflatable device according to claim 5, characterized in that: A sealing ring is also sleeved on the outside of the spherical joint, one side of the sealing ring abuts against the retaining edge, and the other side of the sealing ring abuts against the bottom of the connecting cavity.

7. The quick-release structure of the inflatable device according to claim 1, characterized in that: Two mounting holes are symmetrically provided on the outer wall of the shell away from the end where the connecting cavity is provided. The mounting holes are both threaded holes and are arranged along the radial direction of the shell. One end of the handle connected to the shell is threadedly connected to the mounting holes.

8. The quick-release structure of the inflatable device according to claim 1, characterized in that: It also includes a dustproof cover, which includes a connecting column and a cover body, and one end surface of the cover body is provided with the connecting column protrudingly arranged, and the connecting column selectively extends into the connecting cavity of the shell and is detachably connected to the shell, and when the connecting column is connected to the shell, the cover body seals the cavity opening of the connecting cavity.

9. The quick-release structure of the inflatable device according to claim 8, characterized in that: The connecting column is a hollow structure with an opening, and when the connecting column extends into the connecting cavity and is connected to the shell, the end of the spherical joint extending into the connecting cavity extends into the hollow of the connecting column.

10. The quick-release structure of the inflatable device according to claim 8 or 9, characterized in that: The cover body is provided with a first connection hole, the shell body is provided with a second connection hole, and a connection rope is arranged between the first connection hole and the second connection hole.

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