Combined gas cylinder valve for soda water machine

Abstract

The utility model discloses a combined type gas cylinder valve for a soda water machine. The combined type gas cylinder valve comprises a valve body and a crossover coupling, the adapter is mounted at the upper end of the valve body; an upper cavity and a lower cavity are formed in the adapter substitute, and an ejector rod and a cushion block are sequentially installed in the upper cavity from top to bottom. The valve body comprises a valve body and a valve element assembly. An ejector rod in the adapter is in contact with the valve element assembly. A safety pressure relief assembly is installed on the side wall of the valve body. The gas cylinder is convenient to maintain, the safety and the operation convenience of the soda water machine are ensured, and the reliability and the durability of the gas cylinder are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinder valves used on soda water machines, in particular to a combined gas cylinder valve used for soda water machines. Background Art

[0002] At present, the valves installed on the gas cylinders of soda water machines on the market are mostly integral structures, that is, the positioning pressure cap, valve core assembly, sealing assembly, etc. are installed inside the valve body. In order to ensure the safe use of the gas cylinder, the valve body needs to be equipped with a safety pressure relief assembly in addition to the normal exhaust channel. Therefore, the outside of the valve body is a simple columnar structure, while the internal structure of the valve body is complex. If the valve is impeded in use, it is not convenient to disassemble and repair the valve, and the valve may even be replaced as a whole, resulting in unnecessary waste. In addition, when the carbon dioxide gas cylinder is inflated and reused, it may be necessary to disassemble the valve as a whole. Repeated disassembly operations can easily weaken the sealing performance of the gas cylinder, thereby affecting the use of the soda water machine.

[0003] Furthermore, ordinary carbon dioxide cylinder valves are usually not compatible with the connectors required by soda machines, and therefore cannot be directly connected to soda machines for use. Additional conversion connectors are required, which increases the complexity and cost of use. Summary of the invention

[0004] The utility model aims to provide a combined gas cylinder valve for a soda water machine.

[0005] The utility model solves the problem that the existing gas cylinder for soda water machine has a complicated structure, cumbersome disassembly, installation and maintenance process, and requires an additional conversion joint for the soda water machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model comprises a valve body and a conversion joint; the conversion joint is installed at the upper end of the valve body; the interior of the conversion joint is a through structure, including an upper cavity and a lower cavity, and a push rod and a cushion block are installed in the upper cavity from top to bottom in sequence; the valve body comprises a valve body and a valve core assembly; the valve body has a vertical through passage, including an upper passage and a lower passage; the valve core assembly is installed in the upper passage; the lower cavity of the conversion joint is sleeved on the outer side wall of the upper end of the valve body; the push rod in the conversion joint is in contact with the valve core assembly.

[0007] Furthermore, the valve core assembly includes, from top to bottom, a positioning seat, a valve core, a valve core sleeve and a spring; the positioning seat is clamped at the upper channel port of the valve body; the lower end of the valve core is installed on the valve core sleeve, and the valve core together with the valve core sleeve is installed in the positioning seat; the upper end of the spring is sleeved on the outer side wall of the valve core sleeve, and the lower end of the spring is in conflict with the bottom of the upper channel; a mounting ring groove is provided at the connection between the upper cavity and the lower cavity of the conversion joint, the cushion block is provided at the mounting ring groove, a pressure block is provided on the top surface of the conversion joint, an upper slideway that passes through the upper cavity and is smaller than the diameter of the upper cavity is provided in the middle of the pressure block, and the top rod in the conversion joint includes, from top to bottom, an upper rod, a limit block and a lower rod; the upper rod is located in the upper slideway of the conversion joint, and the lower rod passes through the cushion block and contacts with the valve core; the limit block is limited to the area between the pressure block and the cushion block.

[0008] Furthermore, the middle of the positioning seat is an accommodating cavity that passes through from top to bottom, and the lower end surface of the positioning seat is provided with a first mounting groove, and the first mounting groove is communicated with the accommodating cavity; the valve core sleeve is limited to the first mounting groove; the middle of the valve core sleeve is provided with a second mounting groove, and the second mounting groove is also communicated with the accommodating cavity; the valve core is embedded in the second mounting groove and extends upward in the accommodating cavity.

[0009] Furthermore, a first sealing ring is provided between the top opening of the upper channel and the positioning seat, a second sealing ring is provided between the second installation groove opening of the valve core sleeve and the valve core, and the second sealing ring is in conflict with the first installation groove.

[0010] Furthermore, an exhaust hole is provided on the side wall of the conversion joint, and the exhaust hole is communicated with the upper cavity and the lower cavity of the conversion joint; and an annular installation limiting step is provided on the outer side wall of the conversion joint.

[0011] Furthermore, a safety pressure relief assembly is installed on the side wall of the valve body, and the lower channel is communicated with the safety pressure relief assembly; the safety pressure relief assembly includes a bursting disc and a protective cap, and an exhaust line is provided inside the protective cap.

[0012] Furthermore, the outer wall of the positioning seat is threadedly connected to the inner wall of the upper channel; the lower cavity of the conversion joint is threadedly connected to the outer wall of the upper end of the valve body.

[0013] Furthermore, the lower channel, the upper channel, the accommodating chamber, the upper cavity and the exhaust hole constitute an exhaust channel.

[0014] The beneficial effects of the utility model are: compared with the prior art, the utility model has the following advantages:

[0015] 1. The combined gas cylinder valve designed by the utility model effectively combines the conversion joint with the gas cylinder valve. The conversion joint is designed with components that replace some valves, which not only drives the work of the gas cylinder valve, but also simplifies the structure of the existing gas cylinder valve, making it easier to repair or replace.

[0016] 2. The gas cylinder valve with a special conversion connector can be directly connected to the soda water machine, which is more convenient and quick, reducing the complexity and time cost of operation.

[0017] 3. The conversion joint is replaceable, and the valve body part can be a universal structure. Different machine configurations can replace conversion joints of different specifications to achieve different pressure relief requirements; combined with a soda water machine, it is safer and more reliable to use and can effectively prevent gas leakage.

[0018] 4. The push rod of the conversion joint can adjust the depth of the valve core's downward pressure, thereby adjusting the gas flow rate and ensuring the stable output of the gas, ensuring the safety and ease of operation of the soda water machine.

[0019] 5. The valve body is directly connected to the charging device to inflate the gas cylinder, which ensures the sealing performance of the gas cylinder and improves the reliability and durability of the gas cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the combined structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the valve body of the utility model.

[0022] Figure 3 It is a schematic diagram of the conversion joint of the utility model.

[0023] In the figure: 1. push rod; 10. upper rod; 11. limit block; 12. lower rod; 2. conversion joint; 20. exhaust hole; 200. upper slide; 21. upper cavity; 22. installation limit step; 23. lower cavity; 24. installation ring groove; 25. pressure block; 3. cushion block; 4. valve core assembly; 41. positioning seat; 410. accommodating chamber; 42. valve core; 420. first installation groove; 43. valve core sleeve; 430. second installation groove; 44. spring; 5. valve body; 50. valve body; 500. upper channel; 501. lower channel; 6. safety relief valve device; 60. exhaust line; 61. bursting disc; 7. second sealing ring; 8. first sealing ring. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figure 1As shown, the utility model relates to a combined valve technology for a soda water cylinder, including a valve body 5 and a conversion joint 2, wherein the conversion joint 2 is installed at the upper end of the valve body 5; the conversion joint 2 and the valve body 5 can achieve connection and separation effects.

[0026] In this embodiment, the connection between the conversion joint 2 and the valve body 5 is realized in the following manner: the interior of the conversion joint 2 is a through structure, including an upper cavity 21 and a lower cavity 23, such as Figure 3 The valve body 5 includes a valve body 50 and a valve core assembly 4. The valve core assembly 4 is located in the valve body 50. The lower cavity 23 of the conversion joint 2 is sleeved on the outer side wall of the upper end of the valve body 50. Figure 2 shown.

[0027] like Figure 1 As shown, the upper cavity of the conversion joint 2 is sequentially installed with a push rod 1 and a cushion block 3 from top to bottom. The valve body 50 has a vertically penetrating channel inside, including an upper channel 500 and a lower channel 501. The valve core assembly 4 is installed in the upper channel 500; the push rod 1 in the conversion joint 2 is in contact with the valve core assembly 4. The side wall of the conversion joint 2 is provided with an exhaust hole 20, and the exhaust hole 20 is communicated with the upper cavity 21 and the lower cavity 23 of the conversion joint 2.

[0028] like Figure 2 As shown, the valve core assembly 2 includes a positioning seat 41, a valve core 42, a valve core sleeve 43 and a spring 44 from top to bottom. The positioning seat 41 is clamped at the upper channel port of the valve body 50. The lower end of the valve core 42 is installed on the valve core sleeve 43, and the valve core 42 and the valve core sleeve 43 are installed in the positioning seat 41. The upper end of the spring 44 is sleeved on the outer side wall of the valve core sleeve 43, and the lower end of the spring 44 is in conflict with the bottom of the upper channel 500.

[0029] like Figure 3As shown, a mounting annular groove 24 is provided at the connection between the upper cavity 21 and the lower cavity 23 of the conversion joint 2, and the cushion block 3 is provided at the mounting annular groove 24. A pressure block 25 is provided on the top surface of the conversion joint 2, and an upper slide 500 is provided in the middle of the pressure block 25, which passes through the upper cavity 21 and is smaller than the diameter of the upper cavity 21. The pressure block 25 and the conversion joint 2 are an integral structure to prevent the pressure block 25 from being ejected due to excessive internal gas pressure. The ejector rod 1 in the conversion joint 2 includes an upper rod 10, a limit block 11, and a lower rod 12 from top to bottom; the upper rod 10 is located in the upper slide 200 of the conversion joint 2, and the lower rod 12 passes through the cushion block 3 and contacts the valve core 42. The limit block 11 is limited to the area between the pressure block 25 and the cushion block 3. When the limit block 11 contacts the lower surface of the pressure block 25, the ejector rod cannot move upward any further. When the push rod 1 is pressed down, the valve core 42 in contact with the lower end thereof is driven to move downward, and the spring 44 in contact with the valve core 42 is compressed. When the pressure on the push rod 1 is released, the valve core 42 moves upward under the action of the restoring force of the spring 44, and the push rod 1 is also reset to its original state. An annular installation limit step 22 is provided on the outer side wall of the conversion joint 2. The installation limit step 22 cooperates with the installation and positioning of the soda machine.

[0030] like Figure 2 As shown, the middle of the positioning seat 41 is an accommodating cavity 410 that passes through from top to bottom, and the lower end surface of the positioning seat 41 is provided with a first mounting groove 420, which communicates with the accommodating cavity 410. The valve core sleeve 43 is limited to the first mounting groove 420. The middle of the valve core sleeve 43 is provided with a second mounting groove 430, which also communicates with the accommodating cavity 410; the valve core 42 is installed in the second mounting groove 43 and extends upward in the accommodating cavity 410.

[0031] A first sealing ring 8 is provided between the top opening of the upper channel 500 of the valve body 50 and the positioning seat 41, and a second sealing ring 7 is installed between the opening of the second mounting groove 430 of the valve core sleeve 43 and the valve core 42, and the second sealing ring 7 is in conflict with the first mounting groove 420. The first sealing ring 8 is provided to ensure that the gas in the valve body 5 does not leak and the upper channel 500 is blocked from the outside. When the valve core 42 together with the valve core sleeve 43 is in the reset state, the second sealing ring 7 plays a sealing role, and the upper cavity 21 and the lower channel 200 are not connected; when the valve core 42 together with the valve core sleeve 43 are pressed down, the second sealing ring 7 is separated from the first mounting groove 420, and the upper cavity 21, the accommodating cavity 410 are connected with the upper channel 500 and the lower channel 501.

[0032] To avoid excessive pressure inside the gas cylinder, which may cause deformation of the valve and unnecessary damage caused by pressure release, a safety pressure relief assembly 6 is installed on the side wall of the valve body 50. The safety pressure relief assembly 6 includes a bursting disc 61 and a protective cap. An exhaust line 60 is arranged inside the protective cap. The lower channel 501 is connected to the safety pressure relief assembly 6. When the pressure inside the gas cylinder is too high, the gas passes through the bursting disc 61 and is discharged from the exhaust line 60 of the protective cap. Figure 2 shown.

[0033] In this embodiment, the outer wall of the positioning seat 41 is threadedly connected to the inner wall of the upper channel 500, and the lower cavity 23 of the conversion joint 2 is threadedly connected to the outer wall of the upper end of the valve body 50. This facilitates the close connection between the valve body 5 and the conversion joint 2 and also facilitates disassembly.

[0034] After the valve body 5 and the conversion joint 2 are assembled and installed, the lower channel 501, the upper channel 500, the accommodating chamber 410, the upper cavity 21 and the exhaust hole 20 form an exhaust channel. When the push rod 1 is pressed down, the gas in the gas cylinder can flow along the lower channel 501, the upper channel 500, the accommodating chamber 410, the upper cavity 21 and the exhaust hole 20 into the bubble machine and finally exhaust the gas.

[0035] In this embodiment, the conversion joint 2 is an important component connecting the gas cylinder and the soda water machine, so that the carbon dioxide gas in the gas cylinder can flow into the soda water machine, thereby making bubbles for the water. The design of the utility model can ensure the safety and effectiveness of gas circulation. Through the conversion joint, the gas cylinder can be replaced more conveniently.

Claims

1. A combined gas cylinder valve for a soda water machine, characterized in that It comprises a valve body and a conversion joint; the conversion joint is installed at the upper end of the valve body; the interior of the conversion joint is a through structure, including an upper cavity and a lower cavity, and a push rod and a cushion block are installed in the upper cavity from top to bottom in sequence; the valve body comprises a valve body and a valve core assembly; the valve body has a vertical through passage, including an upper passage and a lower passage; the valve core assembly is installed in the upper passage; the lower cavity of the conversion joint is sleeved on the outer side wall of the upper end of the valve body; the push rod in the conversion joint is in contact with the valve core assembly.

2. A combined gas cylinder valve for a soda water machine according to claim 1, characterized in that The valve core assembly includes, from top to bottom, a positioning seat, a valve core, a valve core sleeve and a spring; the positioning seat is clamped at the upper channel port of the valve body; the lower end of the valve core is installed on the valve core sleeve, and the valve core and the valve core sleeve are installed in the positioning seat; the upper end of the spring is sleeved on the outer side wall of the valve core sleeve, and the lower end of the spring is in conflict with the bottom of the upper channel; a mounting ring groove is provided at the connection between the upper cavity and the lower cavity of the conversion joint, the cushion block is provided at the mounting ring groove, a pressure block is provided on the top surface of the conversion joint, an upper slideway that passes through the upper cavity and is smaller than the diameter of the upper cavity is provided in the middle of the pressure block, and the push rod in the conversion joint includes, from top to bottom, an upper rod, a limit block and a lower rod; the upper rod is located in the upper slideway of the conversion joint, and the lower rod passes through the cushion block and contacts with the valve core; the limit block is limited to the area between the pressure block and the cushion block.

3. A combined gas cylinder valve for a soda water machine according to claim 2, characterized in that The middle of the positioning seat is an accommodating cavity that runs through from top to bottom, and the lower end surface of the positioning seat is provided with a first mounting groove, and the first mounting groove is communicated with the accommodating cavity; the valve core sleeve is limited to the first mounting groove; the middle of the valve core sleeve is provided with a second mounting groove, and the second mounting groove is also communicated with the accommodating cavity; the valve core is installed in the second mounting groove and extends upward in the accommodating cavity.

4. A combined gas cylinder valve for a soda water machine according to claim 3, characterized in that A first sealing ring is arranged between the top opening of the upper channel and the positioning seat, a second sealing ring is arranged between the second installation groove opening of the valve core sleeve and the valve core, and the second sealing ring conflicts with the first installation groove.

5. The combined gas cylinder valve for a soda water machine according to claim 3, characterized in that An exhaust hole is provided on the side wall of the conversion joint, and the exhaust hole is communicated with the upper cavity and the lower cavity of the conversion joint; an annular installation limiting step is provided on the outer side wall of the conversion joint.

6. The combined gas cylinder valve for a soda water machine according to claim 1, characterized in that A safety pressure relief assembly is installed on the side wall of the valve body, and the lower channel is communicated with the safety pressure relief assembly; the safety pressure relief assembly includes a bursting disc and a protective cap, and an exhaust line is arranged inside the protective cap.

7. A combined gas cylinder valve for a soda water machine according to claim 2, characterized in that The outer wall of the positioning seat is threadedly connected to the inner wall of the upper channel; the lower cavity of the conversion joint is threadedly connected to the outer wall of the upper end of the valve body.

8. The combined gas cylinder valve for a soda water machine according to claim 5, characterized in that The lower channel, the upper channel, the accommodating chamber, the upper cavity and the exhaust hole constitute an exhaust channel.

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