Portable inflating device

Abstract

The utility model relates to the technical field of compressed gas supply, in particular to a portable inflating device which comprises a connecting part, an inflating part and a propelling part, a container connector and a propelling connector are arranged at the two ends of the connecting part respectively, the container connector is used for being connected with a container filled with liquid substances, and the propelling connector is used for being connected with the propelling part; an inflation part is arranged in the propelling part and comprises an inflation bottle filled with compressed gas and an inflation mechanism, the inflation mechanism comprises an inflation cavity formed in a bottle opening of the inflation bottle, the inflation cavity is communicated with the interior of the connecting part, a one-way valve is arranged in the inflation cavity, and the one-way valve is communicated with the inflation bottle. The one-way valve is used for controlling connection and disconnection between the inflation bottle and the inflation cavity. An ejector rod matched with the one-way valve is arranged in the connecting part, and when the inflating part is pushed towards the connecting part along with the pushing part, the one-way valve can be pushed to be opened by the ejector rod. The air inflation device is small in size, convenient to operate and capable of rapidly achieving the air inflation effect under special scenes and emergency requirements.

Description

Technical Field

[0001] This utility model relates to the field of compressed gas supply technology, specifically to a portable inflation device. Background Technology

[0002] Currently, injecting compressed gases such as carbon dioxide and oxygen into liquids like water and beverages mainly relies on large-scale equipment such as sparkling water machines and oxygen concentrators. Sparkling water machines are used to make carbonated drinks containing carbon dioxide, while oxygen concentrators produce oxygen-enriched water. Oxygen-enriched water offers significant advantages, helping to relieve fatigue and providing health benefits, and it has practical value in scenarios such as high-altitude hypoxia.

[0003] However, existing devices of this type have some shortcomings. First, these large machines occupy a lot of space, making them extremely inconvenient to store at home or carry when traveling, and difficult to meet the needs of people in outdoor or mobile scenarios such as picnics, camping, travel, and even high-altitude areas. Second, they are cumbersome to operate, especially for oxygen-enriched water machines. Their operation process is complex, often requiring a series of parameter settings and adjustments, and cannot promptly meet the needs of users in situations where oxygen-enriched water urgently needs to be replenished, such as emergency oxygen supply during high-altitude hypoxia or rapid relief of fatigue after exercise. Therefore, the market urgently needs a compact, portable, and easy-to-operate compressed gas filling device.

[0004] People expect to be able to easily and quickly prepare carbonated beverages anytime, anywhere using small gas cylinders when they need to infuse compressed gas into their drinks, especially in situations requiring oxygen-enriched water in emergencies. Therefore, developing such a device has significant practical implications and broad application prospects. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a portable inflation device that is small in size, easy to operate, and can quickly play a role in special scenarios and emergency needs.

[0006] The present invention adopts the following technical solution:

[0007] A portable inflation device includes a connecting part, an inflation part, and a propulsion part. The connecting part has a container connector and a propulsion connector at its two ends. The container connector is used to connect to a container filled with a liquid substance, and the propulsion connector is used to connect to the propulsion part. The propulsion part contains an inflation part, which includes an inflation bottle filled with compressed gas and an inflation mechanism. The inflation mechanism includes an inflation chamber located at the mouth of the inflation bottle, which communicates with the interior of the connecting part. A one-way valve is provided within the inflation chamber to control the connection between the inflation bottle and the inflation chamber. The connecting part has a push rod that cooperates with the one-way valve. When the inflation part is advanced into the connecting part along with the propulsion part, the one-way valve can be opened by the push rod.

[0008] With the above technical solution, when using this utility model product, firstly, connect the container connector of the connecting part to the container to be inflated, and then place the inflation part into the propulsion part; when inflation begins, connect the propulsion part to the propulsion connector, and the inflation part is pushed into the connecting part along with the propulsion part. The push rod in the connecting part pushes the one-way valve open, at which time the inflation bottle is connected to the inflation chamber, and the compressed gas enters the inflation chamber. Since the inflation chamber is connected to the inside of the connecting part, and the connecting part is connected to the inside of the container, the compressed gas in the inflation bottle can enter the container to complete the inflation.

[0009] Preferably, the one-way valve includes a cylinder, a piston, and an elastic reset member. The cylinder is disposed in the inflation chamber. The piston includes a piston rod and a sealing head. The piston rod is located in the cylinder, and a sealing head is provided at one end of the piston rod. The sealing head is used to block or open the air passage between the gas cylinder and the inflation chamber. The pushing end of the piston rod away from the sealing head is axially adapted to the end of the push rod. Under normal conditions, the elastic reset member causes the sealing head to press against the air passage to block gas flow.

[0010] Through the above technical solution, the one-way valve of this utility model is equipped with an elastic component, generally a spring. Under normal conditions, the sealing head closes the air passage between the gas cylinder and the inflation chamber under the action of the elastic component, ensuring that the compressed gas in the gas cylinder will not leak. When the inflation part is pushed towards the connecting part along with the pushing part, the pushing end of the piston rod abuts against the end of the push rod, the piston rod is pushed, the sealing head opens, the compressed gas enters the inflation chamber and flows into the connecting part, thereby completing the inflation.

[0011] Preferably, the inflation chamber is provided with a vent hole that communicates with the connecting part, and the connecting part is connected to the inside of the container; when the inflation part is pushed towards the connecting part along with the propulsion part, the propulsion end of the piston rod abuts against the end of the top rod and pushes the sealing head away from the vent, and the compressed gas in the inflation bottle passes through the vent, inflation chamber, vent hole and connecting part in sequence into the container filled with liquid substance.

[0012] Through the above technical solution, the communication between the inflation chamber and the connecting part of this utility model is achieved through a vent hole. After the push rod pushes the piston rod of the one-way valve to complete the one-way valve opening action, the inflation chamber is filled with compressed gas flowing in from the inflation bottle. At this time, a vent hole is set in the inflation chamber, so that the compressed gas in the inflation chamber can be directly introduced into the connecting part, and then the compressed gas can be further introduced into the container connected to the connecting part to complete the inflation.

[0013] Preferably, the push rod provided in the connecting part has an internally hollow structure, and the push rod connects the inside and outside of the container; the piston rod has an internal air passage, which communicates with the inside of the inflation chamber through an air inlet hole opened on the side wall of the piston rod; the piston rod has an air outlet hole communicating with the internal air passage on the pushing end; and a sealing ring is provided between the piston rod and the inner wall of the cylinder; when the inflation part is pushed towards the connecting part along with the pushing part, the pushing end of the piston rod abuts against the end of the push rod and pushes the sealing head away from the air outlet, while the air outlet hole of the pushing end of the piston rod is axially connected to the hollow push rod; the compressed gas in the inflation bottle passes through the air port, inflation chamber, air inlet hole, air passage, air outlet hole and hollow push rod in sequence into the container filled with liquid substance.

[0014] Through the above technical solution, this utility model achieves the connection between the inflation chamber and the connecting part through the following process. The top rod of this technical solution has a hollow structure, which can connect the inside and outside of the container within the connecting part. During inflation, the piston rod and the end of the top rod contact and are pushed, causing the sealing head to disengage from the air outlet. At this time, the compressed gas in the inflation bottle enters the inflation chamber. The sealing ring set between the piston rod and the inner wall of the cylinder can prevent the gas in the inflation chamber from leaking along the gap between the piston rod and the cylinder. After the gas enters its internal air passage through the air inlet hole on the side wall of the piston rod, since the air outlet at the piston rod push end can be axially connected with the hollow top rod, the internal air passage of the piston rod and the inside of the top rod form a passage when the two are in contact, finally introducing the compressed gas into the container and completing the inflation.

[0015] Preferably, the end of the hollow push rod is provided with a conical top, and the tip of the conical top is provided with an air port communicating with the hollow push rod; the advancing end of the piston rod is provided with a conical groove adapted to the conical top, and the air outlet is opened at the center of the bottom of the conical groove. When the conical top abuts against the conical groove, the air port communicates with the air outlet.

[0016] Preferably, the sealing head of the sealing piston is a conical sealing head, with its diameter gradually decreasing in the direction away from the gas cylinder. The large-diameter end of the conical sealing head is provided with a coaxial cylindrical boss, the diameter of which is smaller than the diameter of the large-diameter end.

[0017] Through the above technical solution, the conical sealing head of this utility model, with its gradually decreasing diameter geometry, has the function of adjusting the inflation flow rate. When the piston rod undergoes axial displacement, the annular gap formed between the conical sealing head and the air inlet changes accordingly. Therefore, by controlling the advance distance of the piston rod, the opening gap can be quantitatively adjusted, thereby achieving control of the inflation speed. Controlling the inflation speed is beneficial for sufficient contact between the compressed gas and the liquid, improving the inflation effect. A boss is provided at the large-diameter end of the conical sealing head, which is the gas inlet end, to guide the airflow direction. The annular gap between the outer periphery of the boss and the mating parts can form a flow channel, allowing the gas to flow smoothly along the outer side of the boss.

[0018] Preferably, a sealing ring is provided between the piston rod and the inner wall of the cylinder; a coaxial support ring is provided between the push rod and the inner wall of the connecting part, the outer periphery of the support ring is sealed to the inner wall of the connecting part, and the inner hole of the support ring is sealed to the outer periphery of the push rod.

[0019] Through the above technical solution, the sealing structure of this utility model can significantly improve the inflation effect: the sealing ring between the piston rod and the cylinder can prevent gas leakage in the inflation chamber along the gap between them; the push rod is connected to the connecting part through the support ring, which can not only achieve radial stable support for the push rod, but also completely block the gas flow gap between the push rod and the inner wall of the connecting part. This ensures that the compressed gas can only flow along a preset path, that is, enter the hollow push rod from the air outlet at the piston rod's pushing end, and then be directly injected into the container. This constraint avoids the volume expansion and pressure attenuation caused by gas diffusion inside the connecting part, and forms an efficient inflation channel through concentrated airflow, ultimately improving the inflation effect.

[0020] Preferably, the propulsion section is provided with a limiting mounting seat adapted to the gas cylinder, and the inner wall of the limiting mounting seat is provided with an axially extending guide limiting strip; the propulsion joint is provided with a guide mounting seat adapted to the gas cylinder.

[0021] The above technical solution includes a limiting mounting seat inside the propulsion section to fix the position of the gas cylinder. An internal guide limiting strip is provided to form a circumferential constraint, preventing the gas cylinder from rotating relative to the propulsion section and ensuring that the two maintain a fixed relative position during operation. A guide mounting seat is provided in the propulsion joint to constrain the position of the gas cylinder during propulsion and ensure the propulsion effect.

[0022] Preferably, the inner wall of the inflation chamber contracts to form a cavity that matches the overall shape of the one-way valve, and the internal space of the cavity constitutes the main internal space of the inflation chamber.

[0023] Through the above technical solution, the inner wall shrinks to form a cavity that matches the overall shape of the one-way valve. This cavity can provide an active clearance for the valve body assembly of the one-way valve and ensure the flow path of compressed gas, thereby reducing the ineffective stagnant space in the inflation chamber and avoiding excessive gas decompression.

[0024] Preferably, the propulsion joint and the propulsion part are connected by a threaded seal, and the container joint and the container are connected by a threaded seal.

[0025] Through the above technical solution, this utility model adopts a threaded sealing connection to achieve the connection between the connecting part, the propulsion part, and the container. This design has significant advantages: on the one hand, mainstream liquid containers on the market generally adopt threaded sealing connection. The container joint of the connecting part only needs to be processed according to common design standards to achieve quick docking with most containers on the market, which is highly versatile; on the other hand, threaded connection is currently a connection method that combines effectiveness and convenience. It can not only control the propulsion distance by adjusting the tightening degree, but also achieve reliable sealing, effectively ensuring the airtightness of the inflation process. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0027] Figure 2 This is a three-dimensional structural diagram of the connecting part in Embodiment 1.

[0028] Figure 3 This is a cross-sectional schematic diagram of the connection part in Embodiment 1.

[0029] Figure 4 This is a three-dimensional structural diagram of the propulsion section in Embodiment 1.

[0030] Figure 5 This is a cross-sectional schematic diagram of the inflation section in Example 1.

[0031] Figure 6 This is a schematic diagram of the overall fit and configuration of Example 1.

[0032] Figure 7 yes Figure 6 A magnified structural diagram of region A in the middle.

[0033] Figure 8 This is a magnified view of a portion of the air-filled cavity in Example 2.

[0034] In the diagram: 1-Connecting part; 101-Container connector; 102-Propulsion connector; 103-Top rod; 104-Support ring; 105-Air port; 106-Guide mounting seat; 107-Conical top head; 2-Inflation part; 201-Inflation bottle; 202-Inflation chamber; 203-Reset spring; 204-Cylinder; 205-Piston rod; 206-Sealing head; 207-Sealing ring; 208-Cylindrical boss; 209-Air passage; 210-Inlet; 211-Outlet; 212-Conical groove; 213-Ventilation hole; 3-Propulsion part; 301-Limit mounting seat; 302-Guide limit strip. Detailed Implementation

[0035] Example 1

[0036] like Figures 1-7 As shown, a portable inflation device includes a connecting part 1, an inflation part 2, and a propulsion part 3. The two ends of the connecting part are respectively provided with a container connector 101 and a propulsion connector 102. The container connector is used to detachably connect to a container 4 filled with liquid substance, and the propulsion connector 101 is used to connect to the propulsion part 3.

[0037] The propulsion section includes an inflation section, comprising an inflation cylinder 201 filled with compressed gas and an inflation mechanism. The inflation mechanism includes an inflation chamber 202 located at the mouth of the inflation cylinder, which is connected to the interior of the connecting section. A one-way valve is located within the inflation chamber 202 to control the connection between the inflation cylinder and the inflation chamber. The connecting section 1 includes a push rod 103 that cooperates with the one-way valve. The push rod 103 has a hollow interior. A coaxial support ring 104 is located between the push rod 103 and the inner wall of the connecting section 1. The outer periphery of the support ring 104 is sealed to the inner wall of the connecting section 1, and the inner hole of the support ring 104 is sealed to the outer periphery of the push rod 103. The push rod 103 connects the inside and outside of the container 4.

[0038] The one-way valve includes a cylinder 204, a piston, and an elastic reset component. In this embodiment, a reset spring 203 is selected. The cylinder 204 is disposed in the inflation chamber 202. The sealing piston includes a piston rod 205 and a sealing head 206. The piston rod 205 is located inside the cylinder 204. One end of the piston rod 205 is provided with a sealing head 206. A sealing ring 207 is provided between the outer circumferential surface of the piston rod 205 and the inner circumferential surface of the cylinder 204. The sealing head 206 is a conical sealing head with a diameter that gradually decreases in the direction away from the inflation cylinder. The large-diameter end of the sealing head 206 is provided with a coaxial cylindrical boss 208. The diameter of the cylindrical boss is smaller than the diameter of the large-diameter end. The sealing head 206 is used to block or open the air passage between the inflation cylinder 201 and the inflation chamber 202.

[0039] The piston rod 205 has an internal air passage 209, which communicates with the inflation chamber 202 via an air inlet 210 formed on the side wall of the piston rod. The piston rod's advancing end has an air outlet 211 communicating with the internal air passage. The advancing end of the piston rod 205, away from the sealing head 206, is fitted to the end of the top rod 103, allowing the air passage 209 inside the piston rod 205 to communicate with the interior of the hollow top rod 103 through the air outlet 211. To enhance the fitting, advancing, and sealing effects, in this embodiment, the end of the hollow top rod 103 is provided with a conical top head 107. The tip of the conical top head 107 has an air port 105 communicating with the hollow top rod 103. The advancing end of the piston rod 205 has a conical groove 212 fitted to the conical top head 107, and the air outlet 211 is located at the center of the bottom of the conical groove 212, communicating with the air passage 209.

[0040] Under normal conditions, the return spring 205 causes the sealing head 206 to press against the air port 208, blocking gas flow. When the propulsion unit 3 drives the inflation unit to advance towards the push rod 103, the conical top 107 of the push rod 103 abuts against the conical groove 212 at the propulsion end, and the air port 105 communicates with the air outlet 211. The compressed gas in the inflation cylinder passes sequentially through the air port 208, the inflation chamber 202, the air inlet 210, the air passage 209, the air outlet 211, and the hollow push rod 103 into the container 4 filled with liquid substance.

[0041] In this embodiment, the propulsion part 3 is provided with a limiting mounting seat 301 adapted to the gas cylinder, and the inner wall of the limiting mounting seat 301 is provided with an axially extending guide limiting strip 302; the propulsion joint 102 is provided with a guide mounting seat 106 adapted to the gas cylinder, and the inner wall of the inflation chamber 202 contracts to form a cavity adapted to the overall shape of the one-way valve 203, and the internal space of the cavity constitutes the internal main space of the inflation chamber.

[0042] Example 2

[0043] The difference between this embodiment and Embodiment 1 is that the connection between the inflation chamber and the connecting part is achieved through the vent 213, rather than through the connection between the hollow push rod and the air passage inside the piston rod.

[0044] As shown in Figure 8, in this embodiment, the sealing head of the one-way valve has a cylindrical structure. The inflation chamber is provided with a vent 213 that communicates with the connecting part. This vent 213 is located at the front end of the one-way valve cylinder. The specific difference between this embodiment and Embodiment 1 is that the push rod in this embodiment does not need to be hollow inside; it only needs to be able to cooperate with the one-way valve to push it open / close. The push rod 103 and the connecting part 1 are connected by a support ring, support arm, or other support structures known to those skilled in the art that can fix the push rod inside the connecting part. It should be specifically noted that, in order to achieve the inflation path of compressed gas sequentially from the inflation bottle, air inlet, inflation chamber, vent, connecting part, and finally into the container, the difference between this embodiment and Embodiment 1 is that the push rod 103 and the inner wall of the connecting part 1 are not sealed together. In this embodiment, an air hole is reserved on the support ring 104 connecting the push rod 103 and the connecting part as a channel for the compressed gas to flow within the connecting part. When the inflation part 2 is pushed towards the connecting part 1 along with the propulsion part 3, the pushing end of the piston rod 205 abuts against the end of the top rod 103 and pushes the sealing head away from the air inlet. The compressed gas in the inflation bottle passes through the air inlet, inflation chamber, vent hole and connecting part in sequence and enters the container filled with liquid substance.

[0045] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A portable inflation device, characterized in that: The device includes a connecting part, an inflation part, and a propulsion part. The connecting part has a container connector and a propulsion connector at both ends. The container connector is used to connect to a container filled with liquid, and the propulsion connector is used to connect to the propulsion part. The propulsion part contains an inflation part, which includes an inflation cylinder filled with compressed gas and an inflation mechanism. The inflation mechanism includes an inflation chamber located at the mouth of the inflation cylinder, which is connected to the interior of the connecting part. A one-way valve is provided within the inflation chamber to control the connection between the inflation cylinder and the inflation chamber. The connecting part has a push rod that cooperates with the one-way valve. When the inflation part is advanced into the connecting part along with the propulsion part, the one-way valve can be opened by the push rod.

2. The portable inflation device according to claim 1, characterized in that: The one-way valve includes a cylinder, a piston, and an elastic reset element. The cylinder is disposed in the inflation chamber. The piston includes a piston rod and a sealing head. The piston rod is located inside the cylinder, and a sealing head is provided at one end of the piston rod. The sealing head is used to block or open the air passage between the inflation cylinder and the inflation chamber. The pushing end of the piston rod away from the sealing head is axially adapted to the end of the push rod. Under normal conditions, the elastic reset element causes the sealing head to press against the air passage to block gas flow.

3. A portable inflation device according to claim 2, characterized in that: The inflation chamber is provided with a vent hole that communicates with the connecting part, and the connecting part is connected to the inside of the container. When the inflation part is pushed towards the connecting part along with the propulsion part, the propulsion end of the piston rod abuts against the end of the top rod and pushes the sealing head away from the vent. The compressed gas in the inflation bottle passes through the vent, inflation chamber, vent hole and connecting part in sequence and enters the container filled with liquid substance.

4. A portable inflation device according to claim 2, characterized in that: The push rod inside the connecting part has a hollow structure and connects the inside and outside of the container. The piston rod has an air passage inside, which connects to the inflation chamber through an air inlet on the side wall of the piston rod. The piston rod has an air outlet on the pushing end away from the sealing head that connects to the internal air passage. When the inflation part is pushed towards the connecting part with the pushing part, the pushing end of the piston rod abuts against the end of the push rod and pushes the sealing head away from the air inlet. At the same time, the air outlet at the pushing end of the piston rod is axially connected to the hollow push rod. The compressed gas in the inflation bottle passes through the air inlet, inflation chamber, air inlet, air passage, air outlet and hollow push rod in sequence to enter the container filled with liquid substance.

5. A portable inflation device according to claim 4, characterized in that: The hollow push rod has a conical top at its end, and the tip of the conical top has an air port that communicates with the hollow push rod; the piston rod has a conical groove that matches the conical top, and the air outlet is located at the center of the bottom of the conical groove. When the conical top abuts against the conical groove, the air port communicates with the air outlet.

6. A portable inflation device according to claim 4, characterized in that: The sealing head of the sealing piston is a conical sealing head, with its diameter gradually decreasing in the direction away from the gas cylinder. The large-diameter end of the conical sealing head is provided with a coaxial cylindrical boss, the diameter of which is smaller than the diameter of the large-diameter end.

7. A portable inflation device according to claim 4, characterized in that: A sealing ring is provided between the piston rod and the inner wall of the cylinder; a coaxial support ring is provided between the push rod and the inner wall of the connecting part, the outer circumference of the support ring is sealed to the inner wall of the connecting part, and the inner hole of the support ring is sealed to the outer circumference of the push rod.

8. A portable inflation device according to claim 1, characterized in that: The propulsion section is provided with a limiting mounting seat adapted to the gas cylinder, and the inner wall of the limiting mounting seat is provided with an axially extending guide limiting strip; the propulsion joint of the connecting section is provided with a guide mounting seat adapted to the gas cylinder.

9. A portable inflation device according to claim 1, characterized in that: The inner wall of the inflation chamber contracts to form a cavity that matches the overall shape of the one-way valve, and the internal space of the cavity constitutes the main internal space of the inflation chamber.

10. A portable inflation device according to claim 1, characterized in that: The propulsion joint and the propulsion part are connected by a threaded seal, and the container joint and the container are connected by a threaded seal.

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