Filling structure of gas control valve

Abstract

The utility model relates to the technical field of valve bodies, and discloses a filling structure of a gas control valve, which comprises a valve body, a gas charging port and a gas outlet are communicated on the valve body at intervals, the gas charging port is arranged above the gas outlet, and valve cores are arranged in the gas charging port and the gas outlet. When the valve element is closed, the second plug of the valve element is flush with the inner wall of the valve body, one end of the valve body is rotationally connected with an adjusting mechanism, the output end of the adjusting mechanism is connected with a first plug, the first plug is connected with the inner wall of the valve body in a sliding mode, and the first plug can abut against the second plug. By means of the sealing device, the problem that leakage may occur at the valve element during long-term sealing and vibration is solved, and the sealing effect of the valve body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve bodies, and more particularly to a filling structure of a gas control valve. Background Art

[0002] The inflation valve is a device that controls and regulates the flow of gas to achieve gas inflation and exhaust. It is widely used in various gas storage equipment.

[0003] Chinese utility model patent application number 202323662153.6 discloses an inflation valve structure in which a spring is arranged between the sealing head and the valve body. Under normal conditions, the internal high pressure and the spring jointly press the sealing head onto the valve body to achieve sealing. Inflation is to overcome the spring force to push the sealing head inward to open the inflation valve for inflation. However, its sealing effect is limited. When vibration occurs during long-term storage or transportation, the sealing head is prone to displacement and leakage. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a filling structure of a gas control valve with good sealing effect.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A filling structure of a gas control valve includes a valve body, on which an inflation port and an outlet are connected at intervals, the inflation port is arranged above the outlet, and valve cores are arranged in the inflation port and the outlet. When the valve core is closed, a second plug of the valve core is flush with the inner wall of the valve body, one end of the valve body is rotatably connected to an adjusting mechanism, an output end of the adjusting mechanism is connected to a first plug, the first plug is slidably connected to the inner wall of the valve body, the first plug can abut against the second plug, and a second sealing ring is provided at the end of the first plug facing away from the adjusting mechanism.

[0007] The utility model is further configured as follows: the valve core includes a sealing ring, which is arranged on the inner wall of the inflation port or the air outlet; a limiting ring 2 is provided at the end of the sealing ring facing away from the valve body; the plug 2 includes a sealing head and a connecting rod; the sealing head can fit and seal with the sealing ring; the connecting rod is slidably connected to the limiting ring 2; a spring is connected to the connecting rod; the other end of the spring points to the valve body and is fixed on the sealing ring.

[0008] The utility model is further configured as follows: the cross section of the sealing head is in a "W" shape on the side away from the valve body, and a convex ring is correspondingly provided on the sealing ring, and the convex ring can match and fit with the "W"-shaped groove of the sealing head.

[0009] The utility model is further configured as follows: the adjusting mechanism includes a connecting head, the connecting head is rotatably connected to the valve body, a screw is connected to the connecting head, a mounting bracket is provided at the bottom of the valve body, the screw extends toward the inside of the valve body and is rotatably connected to the mounting bracket, the plug is threadedly connected to the screw, a slide rail is axially provided on the inner wall of the valve body, and the plug slides on the slide rail.

[0010] The utility model is further configured as follows: a limiting ring 1 is provided in the valve body, the limiting ring 1 is provided between the mounting frame and the air outlet, a sealing ring 1 is installed on the limiting ring 1, and the sealing ring 1 can be sealed with the sealing ring 2.

[0011] The advantages of the utility model are:

[0012] 1. The inflation port and the air outlet are arranged on both sides of the valve body. A plug is arranged in the valve body, which is sealed with the inner wall of the valve body. An adjustment mechanism is provided on the valve body, and the position of the plug inside the valve body can be controlled by the adjustment mechanism. The inflation port is arranged above the air outlet. When the plug is at the top, the inflation port and the air outlet can be opened and inflation can be carried out. When the plug only blocks the inflation port, the gas can be discharged from the air outlet and normal use can be carried out. When the plug is moved to the bottom, the inflation port and the air outlet are both blocked. The double sealing of the plug and the valve core improves the sealing effect of the valve body and reduces gas leakage.

[0013] 2. The side of the valve core's sealing head that seals with the sealing ring is set in a "W" shape, and a convex ring is correspondingly provided on the sealing ring. The convex ring can match and fit with the "W"-shaped groove of the sealing head, thereby increasing the sealing length and improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 For the Figure 1 The AA line cross-section shown;

[0016] Figure 3 For the Figure 1 The BB line cross section is shown;

[0017] Figure 4 for Figure 2 An enlarged view of part C is shown;

[0018] In the figure: 1. Valve body; 11. Mounting frame; 12. Slide rail; 13. Limiting ring 1; 14. Sealing ring 1; 2. Inflating port; 3. Air outlet; 4. Adjusting mechanism; 41. Connecting head; 42. Screw; 5. Plug 1; 6. Sealing ring 2; 7. Valve core; 71. Sealing ring; 72. Limiting ring 2; 73. Plug 2; 731. Sealing head; 732. Connecting rod; 74. Spring. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by one of ordinary skill in the art to which this application relates.

[0021] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0022] See also Figure 1-4 , the utility model provides the following technical solutions:

[0023] A filling structure for a gas control valve includes a valve body 1. The valve body 1 is provided with an inflation port 2 and an outlet port 3 at intervals. The inflation port 2 is arranged above the outlet port 3. A valve core 7 is provided in both the inflation port 2 and the outlet port 3. When the valve core 7 is closed, a second plug 73 of the valve core 7 is flush with the inner wall of the valve body 1. One end of the valve body 1 is rotatably connected to an adjustment mechanism 4. The output end of the adjustment mechanism 4 is connected to a first plug 5. The first plug 5 is slidably connected to the inner wall of the valve body 1. The first plug 5 can abut against the second plug 73. A second sealing ring 6 is provided at the end of the first plug 5 facing away from the adjustment mechanism 4. The second sealing ring 6 seals the first plug 5 against the inner wall of the valve body 1.

[0024] When the plug 1 5 is at the top, it is not in contact with the inflation port 2 and the air outlet 3. At this time, the valve core 7 is pushed to open the inflation port 2 to inflate the air through the valve body 1.

[0025] When the plug 1 5 moves down to the inflation port 2, the plug 1 5 abuts against the valve core 7 in the inflation port 2, the inflation port 2 cannot be opened, the inflation port 2 is in a sealed state, and the sealing ring 2 6 is also in a sealed state. Through double sealing, the sealing effect of the inflation port 2 is improved to prevent gas from leaking from the inflation port 2, while the gas outlet 3 can be opened normally to supply gas. At this time, the gas storage device is in normal use;

[0026] When the plug 5 continues to move down to the air outlet 3, the valve core 7 of the air outlet 3 abuts against the plug 5. At this time, the sealing ring 2 6 controls the inflation port 2 and the air outlet 3 in the sealed space, and the valve core 7 of the inflation port 2 and the air outlet 3 itself has a sealing function. The double sealing of the sealing ring 2 6 and the valve core 7 improves the sealing effect of the valve body 1. At this time, the internal gas will not be discharged, and the gas storage device is in a sealed state, so it can be transported or stored for a long time without large-scale leakage.

[0027] The valve core 7 includes a sealing ring 71, which is arranged on the inner wall of the inflation port 2 or the outlet port 3. A second limit ring 72 is provided at the end of the sealing ring 71 facing away from the valve body 1. The second plug 73 includes a sealing head 731 and a connecting rod 732. The sealing head 731 can fit and seal with the sealing ring 71. The connecting rod 732 is slidably connected to the second limit ring 72. A spring 74 is connected to the connecting rod 732. The other end of the spring 74 points to the valve body 1 and is fixed to the sealing ring 71. Under normal conditions, the sealing head 731 is pressed against the sealing ring 71 under the action of the spring 74 and the internal air pressure, thereby achieving a seal.

[0028] The cross section of the sealing head 731 is in a "W" shape on the side facing away from the valve body 1, and a convex ring is correspondingly provided on the sealing ring 71. The convex ring can match and fit with the "W"-shaped groove of the sealing head 731, setting the sealing surface to an irregular shape, thereby increasing the sealing length and improving the sealing effect.

[0029] The regulating mechanism 4 includes a connecting head 41, which is rotatably connected to the valve body 1. Several sealing rings can be arranged between the connecting head 41 and the valve body 1 to ensure the sealing effect of the entire device. A screw 42 is connected to the connecting head 41, and a mounting frame 11 is provided at the bottom of the valve body 1. The screw 42 extends toward the inside of the valve body 1 and is rotatably connected to the mounting frame 11. The plug 5 is threadedly connected to the screw 42. A slide rail 12 is axially provided on the inner wall of the valve body 1. The plug 5 slides on the slide rail 12. When the connecting head 41 is rotated, the plug 5 can be driven by the screw 42, and the plug 5 can move along the slide rail 12 in the valve body 1.

[0030] A limit ring 13 is provided in the valve body 1 and is disposed between the mounting bracket 11 and the air outlet 3. A sealing ring 14 is mounted on the limit ring 13 and can be sealed with the sealing ring 2 6. The limit ring 13 limits the maximum downward distance to which the plug 5 can move, thereby preventing the plug 5 from separating from the screw 42 and facilitating the determination of the position of the plug 5 to ensure the adjustment effect.

[0031] When the plug 5 moves to the bottom, the sealing ring 2 6 fits with the sealing ring 14, which improves the sealing effect of the sealing ring 2 6. That is, the valve body 1 has a better sealing effect when it needs to be stored or transported for a long time, reducing gas leakage.

[0032] Specifically, the inflation port 2 and the gas outlet 3 are arranged on both sides of the valve body 1, and a plug 5 is provided in the valve body 1, which is sealed with the inner wall of the valve body 1. An adjusting mechanism 44 is provided on the valve body 1, and the position of the plug 5 inside the valve body 1 can be controlled by the adjusting mechanism. The inflation port 2 is arranged above the gas outlet 3. When the plug 5 is at the uppermost position, the inflation port 2 and the gas outlet 3 can both be opened and inflation can be carried out. When the plug 5 only blocks the inflation port 2, the gas can be discharged from the gas outlet 3 and normal use can be carried out. When the plug 5 moves to the lowermost position, the inflation port 2 and the gas outlet 3 are both blocked. The double sealing of the plug 5 and the valve core 7 improves the sealing effect of the valve body 1 and reduces gas leakage.

[0033] The side where the sealing head 731 of the valve core 7 is sealed with the sealing ring 71 is set to be "W" shaped, and a convex ring is correspondingly provided on the sealing ring 71. The convex ring can match and fit with the "W"-shaped groove of the sealing head 731, thereby increasing the sealing length and improving the sealing effect.

[0034] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0036] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar pairs of elements and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A filling structure for a gas control valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with an air filling port (2) and an air outlet (3) which are connected at intervals. The air filling port (2) is arranged above the air outlet (3). A valve core (7) is provided in both the air filling port (2) and the air outlet (3). When the valve core (7) is closed, the second plug (73) of the valve core (7) is flush with the inner wall of the valve body (1). One end of the valve body (1) is rotatably connected to an adjusting mechanism (4). The output end of the adjusting mechanism (4) is connected to a first plug (5). The first plug (5) is slidably connected to the inner wall of the valve body (1). The first plug (5) can abut against the second plug (73). The end of the first plug (5) facing away from the adjusting mechanism (4) is provided with a second sealing ring (6).

2. A filling structure for a gas control valve according to claim 1, characterized in that: The valve core (7) includes a sealing ring (71), and the sealing ring (71) is arranged on the inner wall of the inflation port (2) or the air outlet (3). A second limiting ring (72) is provided at one end of the sealing ring (71) away from the valve body (1). The second plug (73) includes a sealing head (731) and a connecting rod (732). The sealing head (731) can be fitted and sealed with the sealing ring (71). The connecting rod (732) is slidably connected to the second limiting ring (72). A spring (74) is connected to the connecting rod (732), and the other end of the spring (74) points to the valve body (1) and is fixed on the sealing ring (71).

3. A filling structure for a gas control valve according to claim 2, characterized in that: The cross section of the sealing head (731) is in a "W" shape on the side facing away from the valve body (1), and a convex ring is correspondingly provided on the sealing ring (71), and the convex ring can match and fit with the "W"-shaped groove of the sealing head (731).

4. The filling structure of a gas control valve according to claim 1, characterized in that: The regulating mechanism (4) includes a connecting head (41), the connecting head (41) is rotatably connected to the valve body (1), a screw (42) is connected to the connecting head (41), a mounting frame (11) is provided at the bottom of the valve body (1), the screw (42) extends into the interior of the valve body (1) and is rotatably connected to the mounting frame (11), the plug (5) is threadedly connected to the screw (42), the inner wall of the valve body (1) is axially provided with a slide rail (12), and the plug (5) slides on the slide rail (12).

5. A filling structure for a gas control valve according to claim 4, characterized in that: A limiting ring (13) is provided in the valve body (1), and the limiting ring (13) is provided between the mounting frame (11) and the air outlet (3). A sealing ring (14) is installed on the limiting ring (13), and the sealing ring (14) can be sealed with the sealing ring (6).

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