High-pressure large-drift-diameter quick-release air source device

Abstract

The invention discloses a high-pressure large-drift-diameter quick-release gas source device which comprises a gas cylinder, a gas cylinder valve, a valve control shell and an electromagnetic valve. The gas cylinder valve is mounted at the opening of the gas cylinder; the electromagnetic valve is mounted at the end part of the valve control shell; the gas cylinder valve comprises a valve body, and a positioning sleeve, a main valve element, a spring, an auxiliary valve element and a pushing assembly are sequentially arranged in the valve body in the axis direction. The gas cylinder valve and the valve control shell are matched through the buckles and the spiral clamping grooves, rapid inserting, pulling, assembling, disassembling and limiting are achieved, in the assembling process of the gas cylinder valve and the valve control shell, the electromagnetic valve serves as a pilot valve to control and achieve on-off of a main gas circuit, and large-drift-diameter gas supply can be achieved; when the gas cylinder valve is separated from the valve control shell, the automatic pressure relief function of high-pressure gas circuit disassembly is achieved through the action of all the components and the change of the sealing sequence, and use is safe and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of gas cylinder valves, in particular to a high-pressure large-diameter quick-release gas source device. Background Art

[0002] At present, the pressurized quick-plug structures used in gas devices at home and abroad are mostly quick plugs, which use low pressure, small gas diameter, and complex structure, and need to be disassembled and separated after pressure relief. Some high-pressure quick-change structures are also small-diameter applications, which cannot be used in some occasions that require large flow requirements and large-diameter gas supply. The application of high-pressure large-diameter quick-plug connection structure is still blank and has not been widely used. Therefore, a high-pressure large-diameter quick-disconnect gas source device is proposed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a high-pressure, large-diameter quick-release air source device to achieve quick plug-in, assembly and limitation. The solenoid valve is used as a pilot valve to control the opening and closing of the main air circuit, which can realize large-diameter air supply and can be disassembled under pressure. It is safe and convenient to use and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-pressure large-diameter quick-release gas source device, comprising a gas cylinder, a gas cylinder valve, a valve control housing and a solenoid valve; the gas cylinder valve is installed at the bottle mouth of the gas cylinder, and the solenoid valve is installed at the end of the valve control housing; the gas cylinder valve comprises a valve body, and a positioning sleeve, a main valve core, a spring, a secondary valve core and a push assembly are sequentially arranged in the axial direction of the valve body;

[0005] The main valve core is adapted to be inside the valve body and can move axially inside the valve body. An air hole is provided in the axial direction of the main valve core. When the gas cylinder is inflated, the main valve core seals against the positioning sleeve under the pressure difference between its two end faces. The main valve core and the valve body form a chamber I. The valve control housing has an air supply channel, and the valve body is provided with an air hole corresponding to the air supply channel.

[0006] The auxiliary valve core is adapted to be inside the valve body, the spring is located between the main valve core and the auxiliary valve core, and the auxiliary valve core seals the axial passage of the valve body under the action of the spring;

[0007] The push assembly comprises a mounting sleeve, the mounting sleeve is axially slidingly sealed with a push rod, one end of the push rod can pass through the mounting sleeve and contact the auxiliary valve core;

[0008] The valve body is provided with a through hole in the radial direction, and the through hole corresponds to the end of the auxiliary valve core; the valve control housing is provided with a channel that connects the through hole with the solenoid valve, and the through hole and the channel form a chamber II;

[0009] The gas cylinder valve is detachably connected to the valve control housing. When the gas cylinder valve enters the valve control housing, the push assembly is actuated to separate the auxiliary valve core from the axial channel, chamber I and chamber II are connected, the solenoid valve is energized to deflate, chamber I is depressurized, and the high-pressure gas in the gas cylinder pushes the main valve core to move toward chamber I, the main valve core is separated from the positioning sleeve, and the gas cylinder supplies gas to the gas supply channel through the air hole; when the gas cylinder valve is separated from the valve control housing, the auxiliary valve core seals the axial channel of the valve body.

[0010] Preferably, the push rod includes a push block and a rod body, the valve control housing is provided with a boss corresponding to the push block, the rod body is sleeved with a reset spring, the mounting sleeve is axially provided with a through hole adapted to the rod body, and the mounting sleeve is provided with a sealing ring corresponding to the through hole that seals with the rod body.

[0011] Preferably, the end of the valve body and the valve control housing form a cavity, and the end of the valve control housing is provided with a pressure relief hole connected to the cavity; when the gas cylinder valve is separated from the valve control housing, the reset spring resets the push rod, the rod body is separated from the sealing ring, and there is a gap between the push rod and the mounting sleeve, then chamber II is connected to the pressure relief hole.

[0012] Preferably, at least one clip is provided on the outer wall of the valve body, and a spiral clip groove adapted to the clip is provided on the end of the valve control housing, and the spiral clip groove has a limiting groove to prevent the clip from falling off.

[0013] Preferably, when the valve body is adapted to the valve control housing, the outer wall of the valve body and the valve control housing form an annular chamber, the air supply channel is connected to the annular chamber, there are multiple air holes in an annular array along the axis of the valve body, and multiple air holes are connected to the annular chamber.

[0014] Preferably, the auxiliary valve core has a sealing cone head, the axial channel has a conical sealing surface adapted to the sealing cone head, and the axial channel is gap-matched with the rod body of the auxiliary valve core.

[0015] Preferably, a sealing ring is provided on the outer wall of the valve body.

[0016] Preferably, the positioning sleeve is threadedly connected to the valve body, and a sealing ring is provided on the outer wall of the positioning sleeve.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: when the gas cylinder valve enters the valve control housing, the push assembly is actuated to separate the auxiliary valve core from the axial channel, chamber I is connected to chamber II, the solenoid valve is energized to deflate, chamber I is depressurized, and the high-pressure gas in the gas cylinder pushes the main valve core to move toward chamber I, the main valve core is separated from the positioning sleeve, and the gas cylinder supplies gas to the gas supply channel through the air hole, that is, during the assembly process of the gas cylinder valve and the valve control housing, the solenoid valve is used as a pilot valve to control the on and off of the main gas circuit. In the instantaneous stage of gas supply, since there are multiple air holes in a circular array along the axis of the valve body, large-diameter gas supply can be achieved; when the gas cylinder valve is separated from the valve control housing, the auxiliary valve core seals the axial channel of the valve body. During the separation process of the gas cylinder valve and the valve control housing, the automatic pressure relief function of high-pressure gas circuit disassembly is achieved through the action of each component and the change of the sealing sequence; and the quick plug-in, disassembly and limiting are achieved through the cooperation of the buckle and the spiral groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a cross-sectional view of the present invention;

[0020] Figure 3 It is a cross-sectional view of the gas cylinder valve of the present invention;

[0021] Figure 4 It is a schematic diagram of the auxiliary valve core structure of the present invention.

[0022] In the figure:

[0023] 1 gas cylinder;

[0024] 2 gas cylinder valve, 2.1 valve body, 2.11 air hole, 2.12 through hole, 2.2 positioning sleeve, 2.3 main valve core, 2.4 spring, 2.5 auxiliary valve core, 2.51 sealing cone head, 2.6 push assembly, 2.61 installation sleeve, 2.62 push rod, 2.63 return spring, 2.64 sealing ring, 2.7 buckle;

[0025] 3 valve control housing, 3.1 spiral groove, 3.2 air supply channel, 3.3 pressure relief hole, 3.4 channel;

[0026] 4 solenoid valves. DETAILED DESCRIPTION

[0027] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0028] See also Figure 1-4 , the present invention provides the following technical solutions:

[0029] Embodiment 1: A high-pressure large-diameter quick-release gas source device, comprising a gas cylinder 1, a gas cylinder valve 2, a valve control housing 3 and a solenoid valve 4; the gas cylinder valve 2 is installed at the bottle mouth of the gas cylinder 1, and the solenoid valve 4 is installed at the end of the valve control housing 3; the gas cylinder valve 2 comprises a valve body 2.1, and a positioning sleeve 2.2, a main valve core 2.3, a spring 2.4, an auxiliary valve core 2.5 and a push assembly 2.6 are arranged in sequence in the axial direction of the valve body 2.1;

[0030] The main valve core 2.3 is adapted to the valve body 2.1 and can move axially in the valve body 2.1. The main valve core 2.3 is provided with an air hole 2.31 in the axial direction. When the gas cylinder 1 is inflated, the main valve core 2.3 is sealed against the positioning sleeve 2.2 under the action of the pressure difference between its two end faces. The main valve core 2.3 and the valve body 2.1 form a chamber I; the valve control housing 3 has an air supply channel 3.2, and the valve body 2.1 is provided with an air hole 2.11 corresponding to the air supply channel 3.2;

[0031] The auxiliary valve core 2.5 is adapted to be inside the valve body 2.1, and the spring 2.4 is located between the main valve core 2.3 and the auxiliary valve core 2.5. The auxiliary valve core 2.5 seals the axial channel of the valve body 2.1 under the action of the spring 2.4. Specifically, the auxiliary valve core 2.5 has a sealing cone head 2.51, and the axial channel has a conical sealing surface adapted to the sealing cone head 2.51. The axial channel and the rod body of the auxiliary valve core 2.5 are gap matched. When the sealing cone head 2.51 does not match the conical sealing surface, gas can flow through the gap.

[0032] It should be noted that when the gas cylinder 1 is inflated, the gas enters the chamber I through the gas hole 2.31 of the main valve core 2.3. Since the auxiliary valve core 2.5 seals the axial passage of the valve body 2.1 under the action of the spring 2.4, the gas pressure inside the gas cylinder 1 and the chamber I is the same, but the force-bearing area of ​​the end face of the main valve core 2.3 on the chamber I side is larger than the force-bearing area of ​​the end face on the gas cylinder 1 side, that is, Figure 2 As shown, the right end face of the main valve core 2.3 is subjected to greater force than the left cross section, so the gas pressure in chamber I pushes the main valve core 2.3 to move leftward, and the main valve core 2.3 forms a seal with the sealing surface at the end of the positioning sleeve 2.2, thereby ensuring that the high-pressure gas is stored in the gas cylinder 1;

[0033] The push assembly 2.6 includes a mounting sleeve 2.61, the mounting sleeve 2.61 is axially slidingly sealed with a push rod 2.62, one end of which can pass through the mounting sleeve 2.61 and contact the auxiliary valve core 2.5;

[0034] The valve body 2.1 is provided with a through hole 2.12 in the radial direction, and the through hole 2.12 corresponds to the end of the auxiliary valve core 2.5; the valve control housing 3 is provided with a channel 3.4 that connects the through hole 2.12 with the solenoid valve 4, and the through hole 2.12 and the channel 3.4 form a chamber II;

[0035] The gas cylinder valve 2 is detachably connected to the valve control housing 3. When the gas cylinder valve 2 enters the valve control housing 3, the push assembly 2.6 is actuated to separate the auxiliary valve core 2.5 from the axial passage, the chamber I is connected to the chamber II, the solenoid valve 4 is energized to release gas, the chamber I is depressurized, the high-pressure gas in the gas cylinder 1 pushes the main valve core 2.3 to move toward the chamber I, the main valve core 2.3 is separated from the positioning sleeve 2.2, and the gas cylinder 1 supplies gas to the gas supply passage 3.2 through the air hole 2.11; when the gas cylinder valve 2 is separated from the valve control housing 3, the auxiliary valve core 2.5 seals the axial passage of the valve body 2.1;

[0036] It can be understood that during the connection between the gas cylinder 1 and the valve control housing 3, the push rod 2.62 moves toward the auxiliary valve core 2.5 and pushes the auxiliary valve core 2.5 open, that is, the sealing cone head 2.51 of the auxiliary valve core 2.5 is separated from the conical sealing surface, and at this time, the chamber I is connected with the solenoid valve 4, that is, the gas in the chamber I can enter the chamber II through the gap between the auxiliary valve core 2.5 and the axial channel, and the solenoid valve 4 becomes a "pilot valve" of the pilot structure. The solenoid valve 4 is energized to deflate, and then the main valve core 2.3 is separated from the positioning sleeve 2.2, and the high-pressure gas in the gas cylinder 1 is supplied to the gas supply channel 3.2 through the air hole 2.11. In actual operation, the deflation is completed instantaneously, that is, when the solenoid valve 4 is energized, the pressure on the right side of the main valve core 2.3 drops instantaneously, and the gas supply operation is completed instantaneously after the main valve core 2.3 is opened. The air hole 2.31 can be regarded as a throttling hole, which plays a throttling and pressure reduction role, that is, when the solenoid valve 4 is opened and the gas is deflated, the pressures at both ends of the main valve core 2.3 are different, so that the main valve core 2.3 can be opened.

[0037] Embodiment 2: Different from Embodiment 1, the push rod 2.62 includes a push block and a rod body, the valve control housing 3 is provided with a boss corresponding to the push block, the rod body is sleeved with a reset spring 2.63, the mounting sleeve 2.61 is axially provided with a through hole adapted to the rod body, and the mounting sleeve 2.61 is provided with a sealing ring 2.64 corresponding to the through hole and sealingly matched with the rod body; the end of the valve body 2.1 and the valve control housing 3 form a cavity, and the end of the valve control housing 3 is provided with a pressure relief hole 3.3 connected to the cavity; when the cylinder valve 2 is separated from the valve control housing 3, the reset spring 2.63 resets the push rod 2.62, the rod body is separated from the sealing ring 2.64, and there is a gap between the push rod 2.62 and the mounting sleeve 2.61, then Chamber II is connected to the pressure relief hole 3.3, that is, when the gas cylinder valve 2 is separated from the valve control housing 3, the gas cylinder 1 moves to the left, and the push rod 2.62 is reset to the right under the action of the reset spring 2.63. During the movement of the push rod 2.62, the auxiliary valve core 2.5 is reset first and forms a seal with the axial channel, and then the push rod 2.62 is separated and reset from the sealing ring 2.64. The high-pressure gas in chamber II is depressurized from the gap after the push rod 2.62 and the sealing ring 2.64 are separated, and then discharged from the pressure relief hole 3.3 through the gap between the mounting sleeve 2.61 and the push rod 2.62. When the gas cylinder valve 2 is completely separated from the valve control housing 3, chamber II has been completely depressurized, realizing the pressure disassembly function.

[0038] Embodiment 3: Different from Embodiment 1, at least one clip 2.7 is provided on the outer wall of the valve body 2.1, and a spiral groove 3.1 adapted to the clip 2.7 is provided at the end of the valve control housing 3, and the spiral groove 3.1 has a limiting groove to prevent the clip 2.7 from falling off, that is, the clip 2.7 first enters vertically into the spiral groove 3.1, and then the valve body 2.1 is rotated, the clip 2.7 rotates in the spiral groove 3.1 and moves axially, and then the clip 2.7 enters the limiting groove, which can prevent the clip from accidentally rotating in the opposite direction and falling off, ensuring safety and realizing quick disassembly and installation. Here, the valve body 2.1 and the valve control housing 3 can also be locked and fixed with bolts.

[0039] Embodiment 4: Different from Embodiment 1, when the valve body 2.1 is matched with the valve control housing 3, the outer wall of the valve body 2.1 and the valve control housing 3 enclose an annular chamber, the gas supply channel 3.2 is connected to the annular chamber, and there are multiple air holes 2.11 in an annular array along the axis of the valve body 2.1, and the multiple air holes 2.11 are connected to the annular chamber, that is, when supplying gas, the high-pressure gas in the gas cylinder 1 enters the annular chamber through the multiple air holes 2.11, and then supplies gas to the gas supply channel 3.2, so as to realize large-diameter gas supply;

[0040] Furthermore, a sealing ring is provided on the outer wall of the valve body 2.1. The sealing ring is provided in three places, one sealing ring is located on the left side of the annular chamber, one is located on the right side of the through hole 2.12, and the remaining one is located between the annular chamber and the through hole 2.12, which can be used to seal the annular chamber and the through hole 2.12 respectively to prevent gas leakage and ensure the sealing effect;

[0041] In addition, the positioning sleeve 2.2 is threadedly connected to the valve body 2.1, and a sealing ring is provided on the outer wall of the positioning sleeve 2.2, that is, the positioning sleeve 2.2 can be rotated to move the main valve core 2.3 and adjust the force of the spring 2.4.

[0042] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the content of the present invention.

Claims

1. A high-pressure, large-diameter, quick-release gas source device, characterized in that: The invention comprises a gas cylinder (1), a gas cylinder valve (2), a valve control housing (3) and a solenoid valve (4); the gas cylinder valve (2) is installed at the mouth of the gas cylinder (1), and the solenoid valve (4) is installed at the end of the valve control housing (3); the gas cylinder valve (2) comprises a valve body (2.1), and a positioning sleeve (2.2), a main valve core (2.3), a spring (2.4), a secondary valve core (2.5) and a push assembly (2.6) are arranged in sequence in the axial direction of the valve body (2.1); The main valve core (2.3) is adapted to fit in the valve body (2.1) and can move axially in the valve body (2.1); the main valve core (2.3) is provided with an air hole (2.31) axially; when the gas cylinder (1) is inflated, the main valve core (2.3) seals against the positioning sleeve (2.2) under the action of the pressure difference between its two end faces; the main valve core (2.3) and the valve body (2.1) form a chamber I; the valve control housing (3) has an air supply channel (3.2); the valve body (2.1) is provided with an air hole (2.11) corresponding to the air supply channel (3.2); The auxiliary valve core (2.5) is adapted to fit inside the valve body (2.1), the spring (2.4) is located between the main valve core (2.3) and the auxiliary valve core (2.5), and the auxiliary valve core (2.5) seals the axial passage of the valve body (2.1) under the action of the spring (2.4); The push assembly (2.6) comprises a mounting sleeve (2.61), the mounting sleeve (2.61) is axially slidingly sealed with a push rod (2.62), one end of the push rod (2.62) can pass through the mounting sleeve (2.61) and contact the auxiliary valve core (2.5) accordingly; The valve body (2.1) is radially provided with a through hole (2.12), and the through hole (2.12) corresponds to the end of the auxiliary valve core (2.5); the valve control housing (3) is provided with a channel (3.4) that enables the through hole (2.12) to communicate with the electromagnetic valve (4), and the through hole (2.12) and the channel (3.4) form a chamber II; The gas cylinder valve (2) is detachably connected to the valve control housing (3). When the gas cylinder valve (2) enters the valve control housing (3), the push assembly (2.6) is actuated to separate the auxiliary valve core (2.5) from the axial passage, the chamber I and the chamber II are connected, the solenoid valve (4) is energized to release gas, the chamber I is depressurized, the high-pressure gas in the gas cylinder (1) pushes the main valve core (2.3) to move toward the chamber I, the main valve core (2.3) is separated from the positioning sleeve (2.2), and the gas cylinder (1) supplies gas to the gas supply passage (3.2) through the air hole (2.11); when the gas cylinder valve (2) is separated from the valve control housing (3), the auxiliary valve core (2.5) seals the axial passage of the valve body (2.1).

2. A high-pressure, large-diameter, quick-release gas source device according to claim 1, characterized in that: The push rod (2.62) comprises a push block and a rod body, the valve control housing (3) is provided with a boss corresponding to the push block, the rod body is sleeved with a return spring (2.63), the mounting sleeve (2.61) is axially provided with a through hole adapted to the rod body, and the mounting sleeve (2.61) is provided with a sealing ring (2.64) corresponding to the through hole and sealingly matched with the rod body.

3. A high-pressure large-diameter quick-release gas source device according to claim 2, characterized in that: The end of the valve body (2.1) and the valve control housing (3) enclose a cavity, and the end of the valve control housing (3) is provided with a pressure relief hole (3.3) connected to the cavity; when the gas cylinder valve (2) and the valve control housing (3) are separated, the reset spring (2.63) resets the push rod (2.62), the rod body and the sealing ring (2.64) are separated, and a gap is formed between the push rod (2.62) and the mounting sleeve (2.61), and then the chamber II is connected to the pressure relief hole (3.3).

4. A high-pressure large-diameter quick-release gas source device according to claim 1, characterized in that: The outer wall of the valve body (2.1) is provided with at least one buckle (2.7), the end of the valve control housing (3) is provided with a spiral buckle groove (3.1) adapted to the buckle (2.7), and the spiral buckle groove (3.1) has a limiting recessed groove to prevent the buckle (2.7) from falling off.

5. The high-pressure large-diameter quick-release gas source device according to claim 1, characterized in that: When the valve body (2.1) is matched with the valve control housing (3), the outer wall of the valve body (2.1) and the valve control housing (3) enclose an annular chamber, the air supply channel (3.2) is connected to the annular chamber, and a plurality of air holes (2.11) are arranged in an annular array along the axis of the valve body (2.1), and the plurality of air holes (2.11) are connected to the annular chamber.

6. A high-pressure large-diameter quick-release gas source device according to claim 1, characterized in that: The auxiliary valve core (2.5) has a sealing cone head (2.51), the axial channel has a conical sealing surface adapted to the sealing cone head (2.51), and the axial channel is clearance-matched with the rod body of the auxiliary valve core (2.5).

7. A high-pressure large-diameter quick-release gas source device according to claim 1, characterized in that: The outer wall of the valve body (2.1) is provided with a sealing ring.

8. The high-pressure large-diameter quick-release gas source device according to claim 1, characterized in that: The positioning sleeve (2.2) is threadedly connected to the valve body (2.1), and a sealing ring is provided on the outer wall of the positioning sleeve (2.2).

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