Gas supplementing device for gas cylinder

Abstract

The utility model discloses a gas supplementing device for a gas tank bottle, which belongs to the technical field of gas supplementing and comprises a connecting pipe, a gas inlet end and a gas outlet end of the connecting pipe are respectively provided with a gas inlet dismounting part and a gas outlet dismounting part, the connecting pipe is detachably communicated with a gas supply end through the gas inlet dismounting part, and the connecting pipe is detachably communicated with a gas outlet valve through the gas outlet dismounting part. The gas outlet valve comprises a valve seat, a valve element and an elastic piece, the valve seat is detachably communicated with the gas outlet dismounting piece, and the valve element elastically moves on the valve seat through the elastic piece and is communicated with the gas tank bottle when moving towards the direction of the valve seat. According to the gas supplementing device, a user can supplement gas at any time when the gas in the gas tank bottle is insufficient, so that resource waste is avoided, the gas inlet disassembly and assembly part and the gas outlet disassembly and assembly part have the detachable function, and therefore the gas supplementing device can be disassembled and stored when not used, and use is convenient. When the gas supplementing device is used, gas supplementing of the gas tank bottle can be completed only through simple butt joint, so that the use flexibility of the gas supplementing device and the use experience of a user are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas supplementation, in particular to a gas supplementation device for a gas cylinder. Background Art

[0002] A gas tank is a steel cylinder used to store liquefied petroleum gas, butane gas, gas and other gases. It is common in life and can provide fuel for the combustion of flames. For example, the utility model disclosed in Chinese patent number CN201521006196.1 discloses a portable gas tank, which includes a tank body and an air outlet arranged on the top of the tank body, a sealing valve is arranged on the air outlet, and the bottom outer surface of the tank body is a concave structure, and a heating part is arranged in the concave structure. However, after the gas in this type of portable gas tank is used up, the entire portable gas tank can only be discarded, resulting in a waste of resources.

[0003] Therefore, further improvement is necessary. Utility Model Content

[0004] The utility model aims to provide a gas replenishing device for a gas cylinder bottle to overcome the deficiencies in the prior art.

[0005] A gas replenishing device for a gas cylinder bottle designed for this purpose comprises a connecting pipe, wherein the air inlet end and the air outlet end of the connecting pipe are respectively provided with an air inlet disassembly component and an air outlet disassembly component, the connecting pipe is disassembled and connected to the air supply end via the air inlet disassembly component, the connecting pipe is disassembled and connected to an air outlet valve via the air outlet disassembly component, the air outlet valve comprises a valve seat, a valve core and an elastic component, the valve seat is disassembled and connected to the air outlet disassembly component, the valve core is elastically movable on the valve seat via the elastic component, and is connected to the gas cylinder bottle when it moves in the direction of the valve seat.

[0006] A connecting seal is provided between the air inlet disassembly component and the air supply end, and between the air outlet disassembly component and the valve seat, and they are connected to each other in a sealed manner through threads, buckles, or fasteners.

[0007] The connecting pipe is a soft pipe or a hard pipe, and its air inlet end and air outlet end are respectively provided with protective sleeves, and the protective sleeves are made of metal material.

[0008] The air inlet end and the air outlet end of the connecting pipe are respectively extended toward the outer end of the protective sleeve with an air inlet limiting pipe part and an air outlet limiting pipe part, the air inlet disassembly and assembly part is limited on the air inlet limiting pipe part, and the air outlet disassembly and assembly part is limited on the air outlet limiting pipe part.

[0009] The air inlet limiting pipe part and the air outlet limiting pipe part are respectively arranged in a curved manner or in a straight line, and the ends of the two are arranged in an arc shape or in a plane.

[0010] An air intake limit step is provided on the air intake limit pipe portion, the air intake disassembly component is freely movable on the air intake limit pipe portion, and the limitation is achieved through the air intake limit step, and an air intake disassembly threaded portion is provided on the air intake disassembly component, and the air intake disassembly threaded portion is connected to the air supply end for disassembly.

[0011] The air outlet limiting pipe portion is provided with an air outlet limiting step, the air outlet disassembling component is freely movable on the air outlet limiting pipe portion, and the limiting is achieved by the air outlet limiting step, the air outlet disassembling component is provided with an air outlet disassembling threaded portion, the air outlet disassembling component is threadedly connected with a hollow threaded component through the air outlet disassembling threaded portion, and the hollow threaded component cooperates with the valve seat threaded portion on the valve seat for disassembly and assembly.

[0012] The valve seat is penetrated by a valve seat air passage above and below, the valve core is arranged on the valve seat air passage, and its upper end at least partially extends out of the valve seat air passage, and is provided with a valve core air outlet, the valve core is provided with a lateral air port corresponding to the valve core air outlet, and a movable sealing member is provided on the lateral air port, the elastic member is arranged on the valve seat air passage, and acts elastically in the direction of the valve core, so as to drive the valve core to always move elastically toward the outer end of the valve seat.

[0013] The side of the valve core is provided with a side groove, the movable seal is movably provided on the side groove, the lateral air port is provided on the side groove, and when the valve elastically moves toward the outer end of the valve seat, the movable seal is driven to seal on the lateral air port.

[0014] A valve seat threaded portion is provided at the lower end of the valve seat air passage, and a positioning piece is fixedly provided inside. A positioning cavity is provided on the positioning piece, and a positioning hole connected to the valve seat air passage is provided at the bottom of the positioning cavity. A sleeve portion is provided at the lower end of the valve core. The elastic piece is a compression spring and is positioned on the sleeve portion and the positioning cavity. One end of the elastic piece elastically acts on the valve core, and the other end elastically acts in the positioning cavity. The movable sealing piece is located above the positioning piece, and the gas cylinder is connected to the valve core air outlet and drives the valve core to move in the positioning cavity toward the valve seat. When the valve core moves, it overcomes the elastic force of the elastic piece and drives the movable sealing piece to interact with the positioning piece to drive the movable sealing piece to move and open the lateral air port.

[0015] Through the improvement of the above structure, the utility model utilizes the air inlet disassembly and assembly parts and the air outlet disassembly and assembly to connect the connecting pipe with the air supply end and the air outlet valve respectively, and the gas cylinder bottle is connected with the air outlet valve, so that the gas at the air supply end can enter the gas cylinder bottle through the connecting pipe and the air outlet valve, so that the user can replenish the gas at any time when the gas inside the gas cylinder bottle is insufficient, thereby effectively avoiding the waste of resources, and the air inlet disassembly and assembly parts have the function of being detachable, so the gas replenishing device can be disassembled and stored when not in use, and only simple docking is needed to complete the gas replenishment of the gas cylinder bottle when in use, so as to improve the flexibility of use of the gas replenishing device and the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the exploded structure of an embodiment of the utility model.

[0017] Figure 2 This is a schematic diagram of the exploded structure from another perspective of an embodiment of the utility model.

[0018] Figure 3 This is a schematic diagram of the assembly structure of an embodiment of the utility model.

[0019] Figure 4 This is a schematic diagram of the assembly structure from another perspective of an embodiment of the utility model.

[0020] Figure 5 This is a schematic diagram of the coordination of the intake disassembly and assembly parts and the intake limit pipe.

[0021] Figure 6 It is a schematic diagram of the assembly cross-sectional structure of the exhaust valve. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 6The gas replenishing device for a gas cylinder comprises a connecting pipe 1, wherein the gas inlet end and the gas outlet end of the connecting pipe 1 are respectively provided with a gas inlet disassembly component 2 and a gas outlet disassembly component 3, the connecting pipe 1 is disassembled and connected with the gas supply end through the gas inlet disassembly component 2, the connecting pipe 1 is disassembled and connected with a gas outlet valve through the gas outlet disassembly component 3, the gas outlet valve comprises a valve seat 4, a valve core 5 and an elastic component 6, the valve seat 4 is disassembled and connected with the gas outlet disassembly component 3, the valve core 5 is elastically movable on the valve seat 4 through the elastic component 6, and is connected with the gas cylinder when it moves in the direction of the valve seat 4.

[0025] The connecting tube 1 of the present embodiment is connected to the gas supply end and the gas outlet valve by means of the air inlet disassembly component 2 and the air outlet disassembly component 3 respectively, and the gas cylinder bottle is connected to the gas outlet valve by means of the connecting tube 1 and the air outlet valve, so that the gas at the gas supply end can enter the gas cylinder bottle through the connecting tube 1 and the air outlet valve, so that the user can replenish the gas at any time when the gas inside the gas cylinder bottle is insufficient, thereby effectively avoiding the waste of resources, and the air inlet disassembly component 2 and the gas outlet disassembly component 3 have a detachable function, so the gas replenishing device can be disassembled and stored when not in use, and only simple docking is required to complete the gas replenishment of the gas cylinder bottle when in use, so as to improve the flexibility of use of the gas replenishing device and the user's experience.

[0026] Communication seals are provided between the air inlet disassembly component 2 and the air supply end, and between the air outlet disassembly component 3 and the valve seat 4, respectively, and they are sealed and connected to each other through threads, buckles, or fasteners.

[0027] In this embodiment, connecting seals are respectively provided on the air inlet disassembly component 2 and the air outlet disassembly component 3, and the two are sealed and connected by the air supply end and the valve seat 4 of the connecting seal to avoid gas leakage. At the same time, the air inlet disassembly component 2 and the air supply end, and the air outlet disassembly component 3 and the valve seat 4 are respectively matched by threaded disassembly, so that the structure is simple and reasonable, and the connection is stable and reliable.

[0028] The connecting pipe 1 is a soft pipe or a hard pipe, and its air inlet end and air outlet end are respectively provided with protective sleeves 7, and the protective sleeves 7 are made of metal material.

[0029] In this embodiment, the connecting tube 1 is a soft tube that can be bent at any time for user convenience. In addition, the provision of the protective cover 7 can protect the air inlet and outlet ends of the connecting tube 1 to avoid damage to the connecting tube 1 during use, thereby increasing the service life of the product.

[0030] The air inlet end and the air outlet end of the connecting pipe 1 are respectively extended toward the outer end of the protective cover 7 with an air inlet limiting pipe portion 8 and an air outlet limiting pipe portion. The air inlet disassembly component 2 is limited on the air inlet limiting pipe portion 8, and the air outlet disassembly component 3 is limited on the air outlet limiting pipe portion. In this way, the air inlet disassembly component 2 and the air outlet disassembly component 3 can perform limiting activities, thereby improving the stability of product use.

[0031] The air inlet limiting pipe portion 8 and the air outlet limiting pipe portion are respectively arranged in a curved manner or in a straight line, and the ends of the two are arranged in an arc shape or in a plane.

[0032] In this embodiment, the air inlet limit pipe portion 8 is bent and L-shaped, and the end of the air inlet limit pipe portion 8 is arc-shaped to improve the stable and efficient connection between the air outlet end and the air supply end of the connecting pipe 1. The air outlet limit pipe portion is straight-lined and its end is flat to improve the stable and efficient connection between the air inlet end of the connecting pipe 1 and the air outlet valve.

[0033] An air intake limit step 9 is provided on the air intake limit pipe portion 8, the air intake disassembly component 2 can move freely on the air intake limit pipe portion 8, and the limitation is achieved through the air intake limit step 9, and an air intake disassembly threaded portion 10 is provided on the air intake disassembly component 2, and the air intake disassembly threaded portion 10 is connected to the air supply end for disassembly.

[0034] An air outlet limiting step is provided on the air outlet limiting pipe portion, the air outlet disassembly component 3 can move freely on the air outlet limiting pipe portion and is limited by the air outlet limiting step, an air outlet disassembly threaded portion is provided on the air outlet disassembly component 3, the air outlet disassembly component 3 is threadedly connected with a hollow threaded component 11 through the air outlet disassembly threaded portion, and the hollow threaded component 11 cooperates with the valve seat threaded portion 12 on the valve seat 4 for disassembly and assembly.

[0035] Through the above-mentioned improvements, the present embodiment can make the air inlet disassembly component 2 and the air outlet disassembly component 3 rotate and move axially freely on the air inlet limit pipe part 8 and the air outlet limit pipe part respectively, and can also achieve limitation during movement. In addition, the hollow threaded component 11 is used as a transition component to facilitate the disassembly and assembly between the air outlet disassembly component 3 and the valve seat 4. At the same time, connecting sealing components are respectively arranged between the hollow threaded component 11 and the air outlet disassembly component 3 and the valve seat 4, so that the three can be sealed and connected.

[0036] A valve seat air passage 13 runs through the valve seat 4 from top to bottom, the valve core 5 is arranged on the valve seat air passage 13, and its upper end at least partially extends out of the valve seat air passage 13, and is provided with a valve core air outlet 14. The valve core 5 can be connected with the gas cylinder bottle through the valve core air outlet 14, and the valve core 5 is provided with a lateral air port 15 corresponding to the valve core air outlet 14, and a movable sealing member 16 is provided on the lateral air port 15. The elastic member 6 is arranged on the valve seat air passage 13 and elastically acts in the direction of the valve core 5 to drive the valve core 5 to always move elastically toward the outer end of the valve seat 4.

[0037] A side groove is provided on the side of the valve core 5 , and a movable seal 16 is movably provided on the side groove. The lateral air port 15 is provided on the side groove. When the valve core 5 elastically moves toward the outer end of the valve seat 4 , the movable seal 16 is driven to seal on the lateral air port 15 .

[0038] A valve seat threaded portion 12 is provided at the lower end of the valve seat air passage 13, and a positioning member 17 is fixedly provided inside. A positioning cavity 18 is provided on the positioning member 17, and a positioning hole 19 connected to the valve seat air passage 13 is provided at the bottom of the positioning cavity 18. A sleeve portion 20 is provided at the lower end of the valve core 5. The elastic member 6 is a compression spring and is positioned on the sleeve portion 20 and the positioning cavity 18 to improve the assembly stability of the elastic member 6.

[0039] One end of the elastic member 6 elastically acts on the valve core 5, and the other end elastically acts in the positioning cavity 18. The movable sealing member 16 is located above the positioning member 17. The gas cylinder is docked with the valve core air outlet 14, and the valve core 5 is driven to move in the positioning cavity 18 toward the valve seat 4. When the valve core 5 moves, it overcomes the elastic force of the elastic member 6 and drives the movable sealing member 16 to interact with the positioning member 17, so as to drive the movable sealing member 16 to move and open the lateral air port 15.

[0040] In this embodiment, the movable sealing member 16 is movably arranged on the side groove, and the gas at the gas supply end enters the valve seat air passage 13 and the positioning cavity 18 through the connecting pipe 1.

[0041] In a natural state, the valve core 5 is always elastically moved toward the outer end of the valve seat 4 by the elastic force of the elastic member 6, and the movable seal 16 acts on the lateral air port 15 in a sealing manner, and the gas in the positioning cavity 18 cannot enter the valve core air outlet 14. When the gas cylinder is docked with the valve core air outlet 14 and the valve core 5 is driven to move toward the valve seat 4, the valve core 5 moves in the positioning cavity 18 and overcomes the elastic force of the elastic member 6. When the valve core 5 moves, it drives the movable seal 16 to interact with the positioning member 17. At this time, the movable seal 16 moves or deforms and opens the lateral air port 15. The gas in the positioning cavity 18 enters the valve core air outlet 14 through the lateral air port 15 and enters the gas cylinder to achieve the replenishment of the gas cylinder.

[0042] It should be noted that after the gas in the gas cylinder is used up, the air pressure in the gas cylinder is relatively low. Since there is a large amount of gas at the gas supply end, the air pressure is relatively high. Therefore, when the gas cylinder needs to be refilled, the gas at the gas supply end can enter the gas cylinder through the gas replenishing device and complete the replenishment. When the gas in the gas cylinder is fully replenished, the internal air pressure is relatively high, and the gas at the gas supply end will automatically stop replenishing the gas cylinder. Alternatively, after the gas in the gas cylinder has been replenished for a certain period of time, the user can use a pressure detector to detect the air pressure of the gas cylinder to know the gas replenishment status of the gas cylinder.

[0043] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A gas replenishing device for a gas cylinder, comprising a connecting pipe (1), characterized in that: The air inlet end and the air outlet end of the connecting pipe (1) are respectively provided with an air inlet disassembly component (2) and an air outlet disassembly component (3); the connecting pipe (1) is disassembled and connected to the air supply end through the air inlet disassembly component (2); the connecting pipe (1) is disassembled and connected to an air outlet valve through the air outlet disassembly component (3); the air outlet valve comprises a valve seat (4), a valve core (5) and an elastic component (6); the valve seat (4) is disassembled and connected to the air outlet disassembly component (3); the valve core (5) is elastically movable on the valve seat (4) through the elastic component (6) and is connected to the gas cylinder when it moves in the direction of the valve seat (4).

2. The gas replenishing device for gas cylinders according to claim 1, characterized in that: A connecting seal is provided between the air inlet disassembly component (2) and the air supply end, and between the air outlet disassembly component (3) and the valve seat (4), and they are connected to each other in a sealed manner via threads, buckles, or fasteners.

3. The gas replenishing device for gas cylinders according to claim 1, characterized in that: The connecting pipe (1) is a soft pipe or a hard pipe, and its air inlet end and air outlet end are respectively provided with protective sleeves (7), and the protective sleeves (7) are made of metal material.

4. The gas replenishing device for gas cylinders according to claim 3, characterized in that: The air inlet end and the air outlet end of the connecting pipe (1) are respectively extended toward the outer end of the protective sleeve (7) to form an air inlet limiting pipe part (8) and an air outlet limiting pipe part. The air inlet disassembly and assembly part (2) is limited and movable on the air inlet limiting pipe part (8), and the air outlet disassembly and assembly part (3) is limited and movable on the air outlet limiting pipe part.

5. The gas replenishing device for gas cylinders according to claim 4, characterized in that: The air inlet limiting pipe portion (8) and the air outlet limiting pipe portion are respectively arranged in a curved manner or in a straight line, and the ends of the two are arranged in an arc shape or in a plane shape.

6. The gas replenishing device for a gas cylinder according to claim 4 or 5, characterized in that: The air intake limiting pipe portion (8) is provided with an air intake limiting step (9); the air intake disassembly component (2) is freely movable on the air intake limiting pipe portion (8) and is limited by the air intake limiting step (9); the air intake disassembly component (2) is provided with an air intake disassembly threaded portion (10) and is disassembled and connected to the air supply end via the air intake disassembly threaded portion (10).

7. The gas replenishing device for gas cylinders according to claim 4 or 5, characterized in that: The air outlet limiting pipe portion is provided with an air outlet limiting step, the air outlet disassembly component (3) is freely movable on the air outlet limiting pipe portion and is limited by the air outlet limiting step, the air outlet disassembly component (3) is provided with an air outlet disassembly threaded portion, the air outlet disassembly component (3) is threadedly connected to a hollow threaded component (11) via the air outlet disassembly threaded portion, and the hollow threaded component (11) is disassembled and matched with the valve seat threaded portion (12) on the valve seat (4).

8. The gas replenishing device for gas cylinders according to claim 1, characterized in that: The valve seat (4) is penetrated by a valve seat air passage (13) from top to bottom; the valve core (5) is arranged on the valve seat air passage (13), and its upper end at least partially protrudes out of the valve seat air passage (13), and is provided with a valve core air outlet (14); the valve core (5) is provided with a lateral air port (15) corresponding to the valve core air outlet (14); a movable sealing member (16) is provided on the lateral air port (15); the elastic member (6) is arranged on the valve seat air passage (13) and acts elastically in the direction of the valve core (5), so as to drive the valve core (5) to always move elastically toward the outer end of the valve seat (4).

9. The gas replenishing device for gas cylinders according to claim 8, characterized in that: The valve core (5) is provided with a side groove on the side, the movable sealing member (16) is movably provided on the side groove, and the lateral air port (15) is provided on the side groove. When the valve core (5) elastically moves toward the outer end of the valve seat (4), the movable sealing member (16) is driven to perform a sealing action on the lateral air port (15).

10. The gas replenishing device for gas cylinders according to claim 9, characterized in that: A valve seat threaded portion (12) is provided at the lower end of the valve seat air passage (13), and a positioning member (17) is fixedly provided inside the valve seat. A positioning cavity (18) is provided on the positioning member (17), and a positioning hole (19) communicating with the valve seat air passage (13) is provided at the bottom of the positioning cavity (18). A sleeve portion (20) is provided at the lower end of the valve core (5). The elastic member (6) is a compression spring and is positioned on the sleeve portion (20) and the positioning cavity (18). One end of the elastic member (6) elastically acts on the valve core (5). The other end elastically acts in the positioning cavity (18), the movable sealing member (16) is located above the positioning member (17), the gas cylinder is docked with the valve core gas outlet (14), and the valve core (5) is driven to move in the positioning cavity (18) in the direction of the valve seat (4), and the valve core (5) overcomes the elastic force of the elastic member (6) when moving, and drives the movable sealing member (16) to interact with the positioning member (17), so as to drive the movable sealing member (16) to move and open the lateral gas port (15).

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