Filling valve and liquid phase bottle

Abstract

The utility model relates to the technical field of liquid phase bottles, and provides a filling valve and a liquid phase bottle, the liquid phase bottle comprises a steel bottle body, an angle valve, an inner pipe and the filling valve, the filling valve comprises a valve body and a first plugging piece, the valve body comprises a first connecting end, a second connecting end and a main body section located between the first connecting end and the second connecting end, the first connecting end communicates with the angle valve, and the second connecting end communicates with the angle valve; the second connecting end communicates with the inner pipe, a filling hole communicating with the interior of the steel cylinder body is formed in the main body section, and the filling hole is located above the liquid level of the liquid-phase medium; in the filling state, the first plugging piece abuts against the port, communicated with the main body section, of the second connecting end and plugs the second connecting end. In a gas supply state, the first plugging piece is moved away from a port, communicated with the main body section, of the second connecting end, so that the second connecting end, the main body section, the first connecting end and the angle valve are communicated; the liquid phase bottle provided by the embodiment of the utility model is lower in filling operation difficulty.

Description

Technical Field

[0001] This application relates to the field of liquid phase bottle technology, and in particular provides a filling valve and a liquid phase bottle. Background Technology

[0002] In industrial and commercial catering establishments, a large volume of liquefied petroleum gas (LPG) is required for combustion.

[0003] In related technologies, liquid phase bottles are mainly used for gas supply. Inside the liquid phase bottle is a thin, straight tube. When gas supply is needed, after opening the angle valve, the pressure inside the liquid phase bottle can force the liquid liquefied gas through the straight tube into the angle valve, and then it is converted into a large flow of gaseous gas by the vaporizer to meet the demand.

[0004] When the liquid phase bottle needs to be filled, the liquefied gas is introduced into the bottom of the cylinder through a straight pipe. However, as the liquid level in the cylinder gradually rises, the gas pressure inside the cylinder also increases, making it difficult to fill the liquid phase bottle. Utility Model Content

[0005] The purpose of this application is to provide a filling valve and a liquid phase bottle, which aims to solve the problem of difficulty in filling liquid phase bottles in related technologies.

[0006] To achieve the above objectives, the technical solution adopted in the embodiments of this application is as follows:

[0007] In a first aspect, embodiments of this application provide a liquid phase bottle, including a cylinder body, an angle valve, an inner tube, and a filling valve; the cylinder body is used to contain a liquid phase medium, the cylinder body has a valve mounting port, the angle valve is disposed at the valve mounting port, and the inner tube is disposed inside the cylinder body; the filling valve includes a valve body and a first sealing member, the valve body includes a first connecting end, a second connecting end, and a main body section located between the first connecting end and the second connecting end, the first connecting end being connected to the angle valve, and the second connecting end being connected to the inner tube; the first sealing member is located inside the main body section, and a filling hole is opened on the main body section, the filling hole being connected to the interior of the cylinder body; wherein, the filling hole is located above the liquid surface of the liquid phase medium; the filling valve has a filling state and a gas supply state; in the filling state, the first sealing member abuts against the port of the second connecting end connected to the main body section and seals the second connecting end; in the gas supply state, the first sealing member is removed from the port of the second connecting end connected to the main body section, so that the second connecting end, the main body section, the first connecting end, and the angle valve are connected.

[0008] The beneficial effects of the embodiments of this application are as follows: When the liquid phase bottle provided in this application is filled, the liquid phase medium is introduced into the bottle from the angle valve, and the introduced liquid phase medium can act on the first sealing member, so that the first sealing member abuts against the port of the second connection end connected to the main body section and seals the second connection end. Thus, the liquid phase medium cannot be introduced into the inner tube from the second connection end. Instead, the liquid phase medium enters the inside of the cylinder body from the filling hole opened on the main body section. The filling hole is located above the liquid surface of the liquid phase medium. Therefore, the filling of the liquid phase medium does not need to overcome the liquid column pressure generated by the liquid phase medium inside the cylinder body. Moreover, the filling liquid phase medium enters from above the liquid surface inside, which is a denser liquid entering a less dense gaseous environment. Due to the large density difference, the liquid phase medium is easier to fill into the bottle, thus effectively reducing the difficulty of filling the liquid phase bottle.

[0009] In some embodiments, the filling valve further includes a valve core and a reset member. The valve core is disposed inside the main body section and slides with the main body section so that the first connecting end and the second connecting end can be connected through the valve core.

[0010] The valve core has a first section and a second section that are connected to each other. The inner diameter of the first section is smaller than the inner diameter of the second section. The first section is positioned toward the second connection end. A first sealing member is disposed in the second section and is configured to seal the port of the first section. A reset member is disposed in the main body section and is located on the side of the valve core facing the second connection end and connected to the valve core.

[0011] In the filling state, the valve core abuts against the reset member to compress the reset member, the first sealing member abuts against the port of the first section and seals the first section, and the filling hole is exposed outside the valve core; in the gas supply state, the valve core moves to seal the filling hole, and the first sealing member moves into the second section to make the first connecting end, the first section, the second section and the second connecting end connected.

[0012] In some embodiments, the main body segment includes a first inner tube segment and a second inner tube segment arranged sequentially. The first inner tube segment is close to the first connecting end, and the second inner tube segment is close to the second connecting end. A filling hole is provided on the first inner tube segment. The inner diameter of the second inner tube segment is smaller than that of the first inner tube segment, and a stepped surface is formed at the end of the second inner tube segment facing the first inner tube segment.

[0013] The outer peripheral wall of the valve core has an abutment surface facing the second connection end. In the filling state, the abutment surface is configured to abut against the stepped surface.

[0014] In some embodiments, an annular sealing groove is formed on the outer peripheral wall of the valve core, and a sealing ring is provided in the sealing groove, which abuts against the wall of the first inner pipe section.

[0015] In some embodiments, a limiting protrusion is formed on the inner wall of the second inner tube segment, and a reset member is disposed in the second inner tube segment. One end of the reset member abuts against the limiting protrusion, and the other end of the reset member abuts against the abutment surface.

[0016] In some embodiments, the interior of the main body segment forms a main body cavity, a transmission cavity, and at least one filling cavity; one end of the transmission cavity is connected to a first connecting end, the other end of the transmission cavity is connected to the main body cavity, the main body cavity is connected to a second connecting end, and a first sealing member is disposed inside the main body cavity;

[0017] A filling channel is formed at the bottom of the filling cavity, which is connected to the main cavity; a second sealing element is also provided in the filling cavity, which is configured to block the filling channel; wherein, the filling hole is opened on the wall of the filling cavity.

[0018] In some embodiments, the inner diameter of the side port of the main cavity facing the second connection end is smaller than the inner diameter of the opposite side port of the main cavity away from the second connection end; the first sealing member is configured to seal the side port of the main cavity facing the second connection end.

[0019] In some embodiments, there are multiple filling holes arranged in a ring around the main body segment.

[0020] In some embodiments, the height of the plurality of filling holes is the same; or, at least one of the plurality of filling holes has a different height from the other filling holes.

[0021] Secondly, this application also provides a filling valve, which is applied in a liquid phase bottle and is used to connect the angle valve and the inner tube of the liquid phase bottle. The filling valve includes a valve body and a first sealing member. The valve body includes a first connecting end, a second connecting end, and a main body section located between the first connecting end and the second connecting end. The first connecting end is connected to the angle valve, and the second connecting end is connected to the inner tube. The first sealing member is located in the main body section, and a filling hole is provided on the main body section, which is connected to the interior of the liquid phase bottle.

[0022] The beneficial effects of the embodiments of this application are as follows: The filling valve provided in the embodiments of this application can perform filling operations using the filling hole, which effectively reduces the difficulty of filling operations. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1This is a schematic diagram of the structure of the liquid phase bottle provided in the embodiments of this application;

[0025] Figure 2 A cross-sectional view of a first type of filling valve provided in an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the internal structure of a first type of filling valve provided in an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the valve core of the first type of filling valve provided in the embodiments of this application;

[0028] Figure 5 A cross-sectional view of a second type of filling valve provided in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the internal structure of a second type of filling valve provided in an embodiment of this application.

[0030] The following are the labeling elements in the figure:

[0031] 1000, liquid phase bottle;

[0032] 100. The cylinder body;

[0033] 200. Angle valve;

[0034] 300, Filling valve; 301, Filling hole; 310, Valve body; 311, First connecting end; 312, Second connecting end; 313, Main body section; 313a, Main body cavity; 313b, Transmission cavity; 313c, Filling cavity; 313c1, Filling channel; 3131, First inner tube section; 3132, Second inner tube section; 3133, Stepped surface; 3134, Limiting protrusion ring; 320, First sealing element; 330, Valve core; 3301, Abutment surface; 3302, Sealing groove; 3303, Sealing ring; 331, First section; 332, Second section; 340, Reset element; 350, Second sealing element. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0036] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In industrial and commercial catering establishments, large flows of liquefied petroleum gas (LPG) are required for combustion. Related technologies primarily utilize liquid-phase cylinders for gas supply. Inside the liquid-phase cylinder is a long, thin, straight tube. When gas supply is needed, opening an angle valve forces the liquefied gas from the liquid-phase cylinder through the straight tube into the angle valve. The gas then passes through a vaporizer to be converted into a large flow of gaseous gas for supply to meet demand. When filling the liquid-phase cylinder, the LPG is introduced through the straight tube to the bottom of the cylinder. However, as the liquid level in the cylinder gradually rises, the internal gas pressure also increases, making the filling operation difficult.

[0040] Based on the above considerations, in order to solve the problem of the difficulty in filling liquid phase bottles in related technologies, a liquid phase bottle was designed. During the filling operation of the liquid phase bottle, the liquid phase medium is introduced into the bottle through the angle valve. The introduced liquid phase medium acts on the first sealing member, causing the first sealing member to abut against the port of the second connecting end connected to the main body section and seal the second connecting end. Thus, the liquid phase medium cannot be introduced into the inner tube from the second connecting end. Instead, the liquid phase medium enters the cylinder body through the filling hole opened on the main body section. The filling hole is located above the liquid surface of the liquid phase medium. Therefore, the filling of the liquid phase medium does not need to overcome the liquid column pressure generated by the liquid phase medium inside the cylinder body. Moreover, the liquid phase medium enters from above the internal liquid surface, which is a denser liquid entering a less dense gaseous environment. Due to the large density difference, the liquid phase medium is easier to fill into the bottle, thus effectively reducing the filling difficulty of the liquid phase bottle.

[0041] The following section will provide a detailed description of the liquid phase bottle provided in this application, taking the use of a liquid phase bottle for storing liquefied gas as an example.

[0042] Please refer to Figure 1 , Figure 2 and Figure 5 In a first aspect, embodiments of this application provide a liquid phase bottle 1000, including a cylinder body 100, an angle valve 200, an inner tube (not shown in the figure), and a filling valve 300; the cylinder body 100 is used to contain a liquid phase medium, and the cylinder body 100 has a valve mounting port (not shown in the figure), the angle valve 200 is disposed at the valve mounting port, and the inner tube is disposed inside the cylinder body 100; the filling valve 300 includes a valve body 310 and a first sealing member 320, the valve body 310 includes a first connecting end 311, a second connecting end 312, and a main body section 313 located between the first connecting end 311 and the second connecting end 312, the first connecting end 311 being connected to the angle valve 200, and the second connecting end 312 being connected to the angle valve 200. 12 is connected to the inner tube; the first sealing member 320 is located inside the main body section 313, and the main body section 313 is provided with a filling hole 301, which is connected to the interior of the cylinder body 100; wherein, the filling hole 301 is located above the liquid surface of the liquid medium; the filling valve 300 has a filling state and a gas supply state; in the filling state, the first sealing member 320 abuts against the port of the second connecting end 312 connected to the main body section 313 and seals the second connecting end 312; in the gas supply state, the first sealing member 320 is removed from the port of the second connecting end 312 connected to the main body section 313, so that the second connecting end 312, the main body section 313, the first connecting end 311 and the angle valve 200 are connected.

[0043] The cylinder body 100 is used to contain a liquid medium, which can be a liquid medium such as liquefied gas. The cylinder body 100 has a valve mounting port, and an angle valve 200 can be installed at the valve mounting port to control the internal and external flow of the cylinder body 100.

[0044] Angle valve 200 refers to a valve structure used to control the release of liquefied petroleum gas (LPG) from a gas cylinder. Angle valve 200 opens or closes its inner orifice by rotation to control the flow of LPG; thus, LPG inside the gas cylinder body 100 flows out through angle valve 200 under pressure, and the LPG can be converted into a gaseous state through structures such as pressure reducing valves and finally sent to gas appliances.

[0045] The inner tube refers to a thin, straight tube structure located inside the cylinder body 100; the inner tube can extend to the deepest part of the cylinder body 100, so that the liquefied gas at the deepest part can also be extracted and used when the gas is supplied.

[0046] The filling valve 300 includes a valve body 310 and a first sealing element 320; wherein, the valve body 310 refers to the main structure of the filling valve 300. In some embodiments, the valve body 310 may have a tubular structure. The valve body 310 includes a first connecting end 311, a second connecting end 312, and a main body section 313; it can be understood that the first connecting end 311, the second connecting end 312, and the main body section 313 are different parts corresponding to different positions of the valve body 310, the main body section 313 refers to the middle part of the valve body 310 along its own axial direction (that is, the conduction direction), and the first connecting end 311 and the second connecting end 312 refer to the two opposite ends of the valve body 310 along its own axial direction; the first connecting end 311 and the second connecting end 312 are respectively used to connect the angle valve 200 and the inner tube to realize the conduction between the angle valve 200 and the inner tube.

[0047] A filling hole 301 is provided on the main body section 313, and the filling hole 301 connects to the interior of the cylinder body 100. Understandably, the filling hole 301 refers to a through-hole structure located on the portion of the valve body 310 located in the main body section 313, through which liquefied gas can enter the cylinder body 100. Furthermore, the filling hole 301 is located above the liquid surface of the liquid medium, thus allowing liquefied gas to be filled from above the liquid surface of the liquefied gas contained within the cylinder body 100.

[0048] It should be understood that the liquid surface of the liquid phase medium mentioned above refers to the liquid surface formed by the liquid phase medium stored in the cylinder body 100; the filling hole 301 being located above the liquid surface of the liquid phase medium means that the filling hole 301 can always be located above the liquid surface of the liquid phase medium, that is, after the cylinder body 100 is filled with a certain amount of liquid phase medium, the filling hole 301 is located above the liquid surface formed in the state of being filled with a certain amount of liquid phase medium.

[0049] The first sealing element 320 is located within the main body section 313; optionally, the first sealing element 320 can be a structure such as a steel ball. Under normal conditions, the steel ball can roll down to the interface between the main body section 313 and the second connecting end 312 according to its own gravity, and the spherical shape of the steel ball can cover the port of the second connecting end 312 connecting to the main body section 313; and in the filling state, the introduced liquefied gas can act on the steel ball, so that the steel ball abuts against the interface between the main body section 313 and the second connecting end 312 and tightly seals the port of the second connecting end 312 connecting to the main body section 313.

[0050] It should be understood that the first sealing member 320 is located within the main body segment 313 and can seal the port of the main body segment 313 connected by the second connecting end 312; that is, in the axial direction of the main body segment 313, the projected area of ​​the first sealing member 320 should be smaller than the projected area of ​​the hollow part of the main body segment 313 and larger than the projected area of ​​the port of the main body segment 313 connected by the second connecting end 312; thus, the first sealing member 320 can be moved to seal the port of the main body segment 313 connected by the second connecting end 312, and the first sealing member 320 will not block the main body segment 313 when it is removed from the port of the main body segment 313 connected by the second connecting end 312.

[0051] For example, in some embodiments, the first sealing element 320 can be a steel ball, and the port of the second connecting end 312 connecting the main body section 313 can be funnel-shaped (wherein, the funnel-shaped structure can be formed by the valve body 310 itself, or the funnel-shaped structure can also be formed by a separate structure inside the main body section 313 of the valve body 310), and the diameter of the larger end of the funnel shape is the same as the inner diameter of the main body section 313 and larger than the diameter of the steel ball, while the diameter of the smaller end of the funnel shape is smaller than the diameter of the steel ball; in this way, at least a portion of the steel ball can enter the funnel-shaped structure and form a blockage on the port.

[0052] The filling valve 300 has a filling state and a gas supply state. It should be understood that the filling state refers to the process of introducing liquefied gas from the outside into the angle valve 200, and then filling it into the cylinder body 100 through the filling hole 301 after entering the filling valve 300. Correspondingly, the gas supply state refers to the process of opening the angle valve 200, and then allowing the liquefied gas to be forced from the inner tube into the filling valve 300 according to the pressure inside the cylinder body 100, and then exiting to the outside after entering the angle valve 200.

[0053] In the filling state, after the externally introduced liquefied gas enters the filling valve 300, the liquefied gas will impact the first sealing member 320 and press the first sealing member 320 to the interface between the main body section 313 and the second connecting end 312, and tightly seal the port of the second connecting end 312 connecting to the main body section 313; then, after the liquefied gas accumulates in the main body section 313, it can enter the interior of the cylinder body 100 through the filling hole 301 opened on the main body section 313 to realize the filling operation.

[0054] In the gas supply state, liquefied gas is forced into the filling valve 300 from the inner tube according to the pressure inside the cylinder body 100. The liquefied gas is transmitted from the second connection end 312 to the main body section 313 and pushes up the first sealing member 320, so that the second connection end 312, the main body section 313, the first connection end 311 and the angle valve 200 are connected; thereby enabling the liquefied gas to be discharged from the angle valve 200 to realize the gas supply operation.

[0055] The liquid phase bottle 1000 provided in this application embodiment, during the filling operation of the liquid phase bottle 1000, the liquid phase medium is introduced inward from the angle valve 200, and the introduced liquid phase medium can act on the first sealing member 320, so that the first sealing member 320 abuts against the port of the second connecting end 312 connecting the main body section 313 and seals the second connecting end 312. Thus, the liquid phase medium cannot be introduced into the inner tube from the second connecting end 312. Instead, the liquid phase medium enters the interior of the cylinder body 100 from the filling hole 301 opened on the main body section 313. The filling hole 301 is located above the liquid surface of the liquid phase medium. Therefore, the filling of the liquid phase medium does not need to overcome the liquid column pressure generated by the liquid phase medium inside the cylinder body 100. Moreover, the filling liquid phase medium enters from above the internal liquid surface, which is a denser liquid entering a less dense gaseous environment. Due to the large density difference, the liquid phase medium is easier to fill into the bottle, thus effectively reducing the filling difficulty of the liquid phase bottle 1000.

[0056] Please refer to Figures 1 to 4In some embodiments, the filling valve 300 further includes a valve core 330 and a reset member 340. The valve core 330 is disposed inside the main body section 313 and slides with the main body section 313 so that the first connecting end 311 and the second connecting end 312 can be connected through the valve core 330. The valve core 330 has a first section 331 and a second section 332 that are connected. The inner diameter of the first section 331 is smaller than the inner diameter of the second section 332. The first section 331 is disposed towards the second connecting end 312. A first sealing member 320 is disposed inside the second section 332 and is configured to seal the port of the first section 331. The reset member 340... The valve core 330 is located within the main body section 313. The reset member 340 is located on the side of the valve core 330 facing the second connection end 312 and is connected to the valve core 330. In the filling state, the valve core 330 abuts against the reset member 340 to compress the reset member 340. The first sealing member 320 abuts against the port of the first section 331 and seals the first section 331, while the filling hole 301 is exposed outside the valve core 330. In the gas supply state, the valve core 330 moves to seal the filling hole 301, and the first sealing member 320 moves into the second section 332 to make the first connection end 311, the first section 331, the second section 332 and the second connection end 312 interconnected.

[0057] The valve core 330 refers to a hollow structure that slides and engages with the main body section 313. For example, the valve core 330 can be a section of pipe structure. The peripheral sidewall of the valve core 330 is in contact with and slides with the inner peripheral wall of the main body section 313. In this way, the valve core 330 can slide axially within the main body section 313, and the main body section 313 is connected through the internal hollow structure of the valve core 330.

[0058] The valve core 330 has a first section 331 and a second section 332; it should be understood that the first section 331 and the second section 332 refer to the upper and lower parts of the valve core 330 along its own axial direction (that is, the conduction direction), and the first section 331 is set towards the second connection end 312, while the second section 332 is set towards the first connection end 311.

[0059] The inner diameter of the first section 331 is smaller than the inner diameter of the second section 332, and the first sealing member 320 is disposed in the second section 332. Thus, when the filling operation is performed, after the liquefied gas is introduced into the filling valve 300 from the angle valve 200, the liquefied gas can act on the first sealing member 320 so that the first sealing member 320 moves toward the first section 331 in the second section 332 and seals the port of the first section 331. At the same time, the liquefied gas can act on the valve core 330 so that the valve core 330 moves toward the second connecting end 312 and squeezes the reset member 340, thereby exposing the filling hole 301. After the liquefied gas accumulates in the second section 332, it enters the cylinder body 100 from the filling hole 301 of the main body section 313.

[0060] It should be understood that the inner diameter of the first segment 331 is smaller than the inner diameter of the second segment 332, and the first sealing member 320 can block the port of the first segment 331 within the second segment 332. That is, the projected area of ​​the first sealing member 320 in the axial direction of the valve core 330 is larger than the inner diameter of the first segment 331 and smaller than the inner diameter of the second segment 332. In this way, the first sealing member 320 can block the port of the first segment 331, and the first sealing member 320 will not block the second segment 332.

[0061] For example, in some embodiments, the first sealing member 320 can be a steel ball, and the hollow structure of the part connecting the first segment 331 and the second segment 332 can be funnel-shaped. The inner diameter of the larger end of the funnel-shaped structure is the same as the inner diameter of the second segment 332 and is larger than the diameter of the steel ball, while the inner diameter of the smaller end of the funnel-shaped structure is smaller than the diameter of the steel ball. In this way, at least a portion of the steel ball can enter the funnel-shaped structure and seal the first segment 331.

[0062] During gas supply operation, after opening the angle valve 200, liquefied gas is forced into the filling valve 300 from the inner tube according to the pressure inside the cylinder body 100. The liquefied gas is introduced into the main body section 313 from the second connection end 312. The liquefied gas can act on the valve core 330 and push the valve core 330 towards the first connection end 311, so that the outer peripheral wall of the valve core 330 blocks the filling hole 301. At the same time, the liquefied gas enters the valve core 330 from the first section 331 and pushes the first sealing member 320 into the second section 332, so that the first connection end 311, the first section 331, the second section 332 and the second connection end 312 are connected, so that the liquefied gas can enter the second connection end 312 from the second section 332 and be discharged outward from the angle valve 200.

[0063] Optionally, the aforementioned reset member 340 may be a structure with good elasticity and resistance to corrosion, such as a compression spring.

[0064] With this configuration, by setting the filling valve 300, liquefied gas can be filled from above the liquid level inside the cylinder body 100 during filling; during gas supply, the filling valve 300 does not affect the outflow of liquefied gas.

[0065] Please refer to Figures 1 to 4In some embodiments, the main body segment 313 includes a first inner tube segment 3131 and a second inner tube segment 3132 arranged sequentially. The first inner tube segment 3131 is close to the first connecting end 311, and the second inner tube segment 3132 is close to the second connecting end 312. A filling hole 301 is provided on the first inner tube segment 3131. The inner diameter of the second inner tube segment 3132 is smaller than that of the first inner tube segment 3131. A stepped surface 3133 is formed at one end of the second inner tube segment 3132 facing the first inner tube segment 3131. An abutment surface 3301 facing the second connecting end 312 is formed on the outer peripheral wall of the valve core 330. In the filling state, the abutment surface 3301 is configured to abut against the stepped surface 3133.

[0066] The main body section 313 includes a first inner tube section 3131 and a second inner tube section 3132. The inner diameter of the second inner tube section 3132 is smaller than that of the first inner tube section 3131, so that the second inner tube section 3132 protrudes inward relative to the first inner tube section 3131. A stepped surface 3133 is formed at the end of the second inner tube section 3132 facing the first inner tube section 3131.

[0067] The outer peripheral wall of the valve core 330 has an abutment surface 3301 facing the second connection end 312. Exemplarily, in some embodiments, the shape of the valve core 330 may be stepped, so that the surface of the stepped structure forms the aforementioned abutment surface 3301.

[0068] With this configuration, when the liquefied gas acts on the valve core 330 and pushes the valve core 330 towards the second connection end 312 during the filling state, the stepped surface 3133 can form contact with the contact surface 3301, thereby limiting the movement of the valve core 330 and reducing the risk of damage to the reset component 340 or other accidents due to excessive movement of the valve core 330.

[0069] Please refer to Figures 1 to 4 In some embodiments, an annular sealing groove 3302 is provided on the outer peripheral wall of the valve core 330, and a sealing ring 3303 is provided in the sealing groove 3302, which abuts against the wall surface of the first inner pipe section 3131.

[0070] Among them, the sealing ring 3303 can be an intersecting sealing ring 3303, a silicone sealing ring 3303, etc.

[0071] By fitting a sealing ring 3303 inside a sealing groove 3302 opened on the outer peripheral wall of the valve core 330, when the valve core 330 is placed inside the main body section 313, the outer peripheral wall of the valve core 330 fits against the inner peripheral wall of the main body section 313, and the sealing groove 3302 can seal the gap between the valve core 330 and the main body section 313, thereby improving the sealing performance between the valve core 330 and the main body section 313.

[0072] Please refer to Figures 1 to 4In some embodiments, a limiting protrusion ring 3134 is formed on the inner wall surface of the second inner tube section 3132, and a reset member 340 is disposed in the second inner tube section 3132. One end of the reset member 340 abuts against the limiting protrusion ring 3134, and the other end of the reset member 340 abuts against the abutment surface 3301.

[0073] The limiting protrusion 3134 can be disposed at any point in the second inner tube segment 3132; the limiting protrusion 3134 is used to form a support assembly for the reset member 340. Exemplarily, in some embodiments, the limiting protrusion 3134 can be disposed at the end of the second inner tube segment 3132 facing the second connecting end 312, so that the limiting protrusion 3134 can separate the second inner tube segment 3132 and the second connecting end 312.

[0074] One end of the reset member 340 abuts against the limiting protrusion 3134, and the other end of the reset member 340 abuts against the abutment surface 3301. Thus, in the filling state, when the liquefied gas acts on the valve core 330 and compresses the reset member 340, the limiting protrusion 3134 can provide abutment support for the reset member 340. When the valve core 330 loses the effect of the liquefied gas (i.e., after the filling operation is completed), the reset member 340 can elastically restore itself and push the valve core 330 so that the valve core 330 moves back to its original position, for example, to the position that blocks the filling hole 301.

[0075] Please refer to Figure 1 , Figure 5 and Figure 6 In some embodiments, the interior of the main body segment 313 forms a main body cavity 313a, a transmission cavity 313b, and at least one filling cavity 313c; one end of the transmission cavity 313b is connected to a first connecting end 311, and the other end of the transmission cavity 313b is connected to the main body cavity 313a, the main body cavity 313a is connected to a second connecting end 312, and a first sealing member 320 is disposed in the main body cavity 313a; a filling channel 313c1 is formed at the bottom of the filling cavity 313c, and the filling channel 313c1 is connected to the main body cavity 313a; a second sealing member 350 is also disposed in the filling cavity 313c, and the second sealing member 350 is configured to block the filling channel 313c1; wherein, a filling hole 301 is formed on the wall surface of the filling cavity 313c.

[0076] In this embodiment, unlike the embodiments described above, the valve core 330 is not provided separately. Instead, the interior of the main body section 313 is divided to form a main body cavity 313a, a transmission cavity 313b, and at least one filling cavity 313c.

[0077] One end of the transmission cavity 313b is connected to the first connection end 311, and the other end of the transmission cavity 313b is connected to the main cavity 313a, which is connected to the second connection end 312. In this way, liquefied gas can flow between the first connection end 311 and the second connection end 312 through the transmission cavity 313b and the main cavity 313a.

[0078] The filling chamber 313c is connected to the main chamber 313a through the filling channel 313c1 formed at the bottom, and the filling hole 301 is opened on the wall of the filling chamber 313c. Thus, in the filling state, the liquefied gas enters the main chamber 313a from the transmission chamber 313b and acts on the first sealing member 320 in the main chamber 313a, so that the first sealing member 320 abuts against the port of the second connection end 312 and blocks the second connection end 312. After the liquefied gas in the main chamber 313a accumulates and rises, it enters the filling chamber 313c from the filling channel 313c1 and enters the cylinder body 100 through the filling hole 301.

[0079] A second sealing element 350 is also provided inside the filling cavity 313c; optionally, the second sealing element 350 can be a structure such as a steel ball. It should be understood that under normal conditions, the second sealing element 350 falls to the filling channel 313c1 by its own gravity, thereby enabling the filling cavity 313c to seal the filling channel 313c1.

[0080] In the gas supply state, liquefied gas is pressed into the filling valve 300 from the inner tube according to the pressure inside the cylinder body 100. The liquefied gas is transmitted from the second connection end 312 to the main body section 313 and pushes up the first sealing member 320, so that the second connection end 312, the main body section 313, the first connection end 311 and the angle valve 200 are connected. This allows the liquefied gas to be discharged from the angle valve 200 to realize the gas supply operation. Since the second sealing member 350 blocks the filling channel 313c1, and the filling cavity 313c is connected to the inside of the cylinder body 100 through the filling hole 301, the gas pressure in the filling cavity 313c is the same as the gas pressure inside the steel plate body. Therefore, the liquefied gas cannot push the second sealing member 350 to move upward, so the liquefied gas can be transmitted from the transmission cavity 313b to the angle valve 200 and smoothly discharged to the outside.

[0081] Please refer to Figure 1 , Figure 5 and Figure 6 In some embodiments, the inner diameter of the side port of the main cavity 313a facing the second connection end 312 is smaller than the inner diameter of the opposite side port of the main cavity 313a away from the second connection end 312; the first sealing member 320 is configured to seal the side port of the main cavity 313a facing the second connection end 312.

[0082] In this embodiment, the inner diameter of the side port of the main cavity 313a facing the second connecting end 312 is smaller than the inner diameter of the opposite side port of the main cavity 313a away from the second connecting end 312; that is, the main cavity 313a can be funnel-shaped, or the main cavity 313a can be a combination of funnel and column shape. When the first sealing member 320 is disposed in the main cavity 313a, in the filling state, the liquefied gas can act on the first sealing member 320 and cause the first sealing member 320 to seal the side port of the main cavity 313a facing the second connecting end 312, that is, to seal the small opening end of the funnel shape, so as to achieve the effect of sealing the second connecting end 312 in the filling state.

[0083] Please refer to Figures 1 to 6 In some embodiments, there are multiple filling holes 301, which are arranged in a ring around the main body section 313.

[0084] Optionally, the number of filling holes 301 can be multiple, such as two, three, or more. Multiple filling holes 301 are arranged in a ring around the main body section 313. In this way, when the filling operation is performed, after the liquefied gas enters the main body section 313, it can simultaneously enter the cylinder body 100 through the multiple filling holes 301 surrounding the main body section 313, thereby effectively improving the filling speed.

[0085] Please refer to Figures 1 to 6 In some embodiments, the height of the plurality of filling holes 301 is the same; or, at least one of the plurality of filling holes 301 has a different height from the other filling holes 301.

[0086] In this embodiment, the multiple filling holes 301 of the surrounding main body section 313 can be set to the same height. In this way, when the filling operation is performed, after the liquefied gas enters the main body section 313, it can simultaneously enter the cylinder body 100 from the multiple filling holes 301 of the surrounding main body section 313.

[0087] Alternatively, the multiple filling holes 301 of the main body section 313 can be set at different heights. In this way, when the filling operation is performed, after the liquefied gas enters the main body section 313, it can enter the cylinder body 100 through the multiple filling holes 301 at different heights of the main body section 313.

[0088] Please refer to Figures 1 to 6Secondly, this application embodiment also provides a filling valve 300, which is applied in a liquid phase bottle 1000. The filling valve 300 is used to connect the angle valve 200 and the inner tube of the liquid phase bottle 1000. The filling valve 300 includes a valve body 310 and a first sealing member 320. The valve body 310 includes a first connecting end 311, a second connecting end 312, and a main body section 313 located between the first connecting end 311 and the second connecting end 312. The first connecting end 311 is connected to the angle valve 200, and the second connecting end 312 is connected to the inner tube. The first sealing member 320 is located inside the main body section 313, and a filling hole 301 is provided on the main body section 313, which is connected to the interior of the liquid phase bottle 1000.

[0089] The filling valve 300 provided in this application embodiment can perform filling operations using the filling hole 301, effectively reducing the difficulty of the filling operation.

[0090] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A liquid phase bottle, characterized in that: include A cylinder body for containing a liquid medium, the cylinder body having a valve mounting port; Angle valve, installed at the valve mounting port; An inner tube is disposed inside the cylinder body; and A filling valve, comprising a valve body and a first sealing element, the valve body comprising a first connecting end, a second connecting end, and a main body section located between the first connecting end and the second connecting end, the first connecting end being connected to the angle valve, and the second connecting end being connected to the inner tube; the first sealing element being located within the main body section, the main body section having a filling hole, the filling hole being connected to the interior of the cylinder body; wherein, the filling hole is located above the liquid surface of the liquid medium; The filling valve has a filling state and a gas supply state; in the filling state, the first sealing member abuts against the port of the second connecting end that connects to the main body section and seals the second connecting end; in the gas supply state, the first sealing member is removed from the port of the second connecting end that connects to the main body section, so that the second connecting end, the main body section, the first connecting end and the angle valve are connected.

2. The liquid phase bottle according to claim 1, characterized in that: The filling valve further includes a valve core and a reset component. The valve core is disposed inside the main body section and slides with the main body section so that the first connecting end and the second connecting end can be connected through the valve core. The valve core has a first section and a second section that are connected to each other. The inner diameter of the first section is smaller than the inner diameter of the second section. The first section is positioned toward the second connection end. The first sealing member is disposed in the second section and is configured to seal the port of the first section. The reset member is disposed in the main body section and is located on the side of the valve core facing the second connection end and connected to the valve core. In the filling state, the valve core abuts against the reset member to compress the reset member, the first sealing member abuts against the port of the first segment and seals the first segment, and the filling hole is exposed outside the valve core; in the gas supply state, the valve core moves to seal the filling hole, and the first sealing member moves into the second segment to make the first connecting end, the first segment, the second segment and the second connecting end connected.

3. The liquid phase bottle according to claim 2, characterized in that: The main body section includes a first inner tube section and a second inner tube section arranged in sequence. The first inner tube section is close to the first connecting end, and the second inner tube section is close to the second connecting end. The first inner tube section has the filling hole. The inner diameter of the second inner tube section is smaller than that of the first inner tube section, and a stepped surface is formed at the end of the second inner tube section facing the first inner tube section. The outer peripheral wall of the valve core has an abutment surface facing the second connection end, and in the filled state, the abutment surface is configured to abut against the stepped surface.

4. The liquid phase bottle according to claim 3, characterized in that: The outer peripheral wall of the valve core is provided with an annular sealing groove, and a sealing ring is provided in the sealing groove, which abuts against the wall of the first inner pipe section.

5. The liquid phase bottle according to claim 3, characterized in that: A limiting protrusion ring is formed on the inner wall surface of the second inner tube section. The reset member is disposed in the second inner tube section. One end of the reset member abuts against the limiting protrusion ring, and the other end of the reset member abuts against the abutting surface.

6. The liquid phase bottle according to claim 1, characterized in that: The main body section has a main body cavity, a transmission cavity, and at least one filling cavity formed inside; one end of the transmission cavity is connected to the first connecting end, the other end of the transmission cavity is connected to the main body cavity, the main body cavity is connected to the second connecting end, and the first sealing member is disposed in the main body cavity; A filling channel is formed at the bottom of the filling cavity, and the filling channel is connected to the main cavity; a second sealing member is also provided in the filling cavity, and the second sealing member is configured to block the filling channel; wherein, the filling hole is opened on the wall surface of the filling cavity.

7. The liquid phase bottle according to claim 6, characterized in that: The inner diameter of the side port of the main cavity facing the second connection end is smaller than the inner diameter of the opposite side port of the main cavity away from the second connection end; the first sealing member is configured to seal the side port of the main cavity facing the second connection end.

8. The liquid phase bottle according to any one of claims 1 to 7, characterized in that: The number of filling holes is multiple, and the multiple filling holes are arranged around the main body section.

9. The liquid phase bottle according to claim 8, characterized in that: The height of the plurality of filling holes is the same; or, at least one of the plurality of filling holes has a different height from the other filling holes.

10. A filling valve, characterized in that: The filling valve is applied to a liquid phase bottle and is used to connect the angle valve and the inner tube of the liquid phase bottle. The filling valve includes a valve body and a first sealing element. The valve body includes a first connecting end, a second connecting end, and a main body section located between the first connecting end and the second connecting end. The first connecting end is connected to the angle valve, and the second connecting end is connected to the inner tube. The first sealing element is located inside the main body section, and a filling hole is provided on the main body section, which communicates with the interior of the liquid phase bottle.

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