Inert gas control valve

Abstract

The utility model relates to the technical field of gas control valves, and discloses an inert gas control valve which comprises a control valve bin, a stage gas displacement control mechanism is arranged on the control valve bin, and a gas overflow protection mechanism is arranged in the middle of the stage gas displacement control mechanism. The staged air displacement control mechanism comprises an inner partition plate and a long bolt piece, the inner partition plate is fixedly installed on the inner wall of the control valve bin, and a square rubber sleeve is fixedly connected to the inner wall of the inner partition plate. Through the connection relation design of the long bolt piece and the control valve bin, a user can manually rotate the long bolt piece, then the lifting frame body is driven to slide on the inner wall of the square rubber sleeve, the multiple layers of through holes are made to integrally move downwards, the multiple layers of through holes of different groups in the vertical direction can be controlled to conduct exhaust work, and the exhaust efficiency is improved. The function of increasing the exhaust flow in stages is achieved, and smooth proceeding of work such as chemical reaction research is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gas control valves, and in particular to an inert gas control valve. Background Art

[0002] Rare gases refer to the gaseous single substances corresponding to all the Group 0 elements on the periodic table, also known as inert gases. At room temperature and pressure, they are all colorless and odorless monatomic gases, which are difficult to react chemically. Inert gases are often used in chemical reaction research and other work, and inert gas storage devices need to be equipped with gas control valves for use.

[0003] The existing manual gas control valve body does not have the function of increasing the exhaust volume in stages. In chemical reaction research and other work, in order to ensure the effect of the experiment, the output of inert gas needs to be increased in stages. The existing valve body has poor accuracy in output flow control, which can easily affect the smooth progress of chemical reaction research and other work. Utility Model Content

[0004] The utility model aims to provide an inert gas control valve to solve the problem in the prior art that the exhaust flow rate cannot be increased in stages.

[0005] The utility model provides the following technical solution: an inert gas control valve, comprising a control valve chamber, a staged exhaust volume control mechanism is arranged on the control valve chamber, and a gas overflow protection mechanism is arranged in the middle of the staged exhaust volume control mechanism.

[0006] The staged exhaust volume control mechanism includes an inner baffle and a long bolt member, the inner baffle is fixedly installed on the inner wall of the control valve chamber, a square rubber sleeve is fixedly connected to the inner wall of the inner baffle, a lifting frame is slidably connected to the inner wall of the square rubber sleeve, a multi-layer through hole is opened on the outer wall of the lifting frame, the long bolt member is rotatably connected to the bottom of the inner wall of the control valve chamber, the top of the long bolt member is rotatably connected to the bottom of the lifting frame, and the bottom of the long bolt member extends to the bottom of the control valve chamber, and the user can rotate the long bolt member to cause the lifting frame to rise and fall, thereby controlling different groups of multi-layer through holes in the vertical direction to perform exhaust work, thereby controlling the exhaust flow in stages.

[0007] As a preferred embodiment of the above technical solution, the staged exhaust volume control mechanism also includes a tempered glass plate, an exhaust duct and an air intake duct. The tempered glass plate is fixedly installed on the front of the inner wall of the control valve chamber, and the exhaust duct is fixedly connected to the left side of the control valve chamber. The design of the tempered glass plate facilitates the user to observe the internal state of the control valve chamber.

[0008] As a preferred embodiment of the above technical solution, the air intake pipe is fixedly connected to the right side of the control valve compartment, the outer walls of the exhaust pipe and the air intake pipe are fixedly sleeved with connecting rings, and the inner walls of the exhaust pipe and the air intake pipe are fixedly connected with rubber rings. Through the cooperation of the connecting rings and the rubber rings, it is convenient for users to perform sealing connection processing on this structure.

[0009] As a preferred embodiment of the above technical solution, the overflow protection mechanism includes a hollow square tube, which is fixedly connected to the middle part of the air intake pipe, a digital pressure gauge is fixedly connected to the front of the hollow square tube, and a solenoid valve is fixedly connected to the top of the hollow square tube. Through the cooperation of the digital pressure gauge and the solenoid valve, excess inert gas can be released to ensure the safety of the valve body.

[0010] As a preferred embodiment of the above technical solution, the top of the solenoid valve is fixedly connected with an internal threaded tube, and the top of the internal threaded tube is threadedly connected with an external threaded tube. The design of the internal threaded tube and the external threaded tube facilitates the user to disassemble and maintain the air cylinder.

[0011] As a preferred embodiment of the above technical solution, an air cylinder is fixedly connected to the top of the externally threaded tube, a sealing slide is slidably connected to the inner wall of the air cylinder, and a circular groove is provided on the top of the air cylinder. Through the cooperation of the air cylinder and the sealing slide, the overflowed inert gas can be temporarily stored.

[0012] As a preferred embodiment of the above technical solution, a cross sliding column is welded to the top of the sealing slide plate, the outer wall of the cross sliding column is slidably connected to the inner wall of the gas cylinder, and the top of the cross sliding column extends to the top of the gas cylinder. The user can press down the sealing slide plate from the cross sliding column to facilitate the recycling of the inert gas.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is designed with a connection relationship between a long bolt member and a control valve compartment, so that a user can manually rotate the long bolt member, thereby driving the lifting frame to slide on the inner wall of the square rubber sleeve, causing the multi-layer through holes to move downward as a whole, and can control different groups of multi-layer through holes in the vertical direction to perform exhaust work, thereby realizing the function of increasing the exhaust flow rate in stages, facilitating the smooth progress of work such as chemical reaction research, and improving the practicality of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 for Figure 1 A magnified view of the structure at center A;

[0017] Figure 3It is a schematic diagram of the internal structure of the control valve chamber;

[0018] Figure 4 It is a schematic diagram of the internal structure of the gas storage cylinder of the utility model.

[0019] In the figure: 1. control valve compartment; 2. staged exhaust volume control mechanism; 21. tempered glass plate; 22. exhaust pipe; 23. intake pipe; 24. connecting ring; 25. rubber ring; 26. inner partition; 261. square rubber sleeve; 262. lifting frame; 263. multi-layer through hole; 264. long bolt; 3. overflow protection mechanism; 31. hollow square tube; 32. digital pressure gauge; 33. solenoid valve; 34. internal threaded pipe; 35. external threaded pipe; 36. air storage cylinder; 37. sealing slide plate; 38. cross sliding column; 39. circular groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] like Figure 1-3 As shown, the utility model provides a technical solution: an inert gas control valve, including a control valve chamber 1, a staged exhaust volume control mechanism 2 is arranged on the control valve chamber 1, an overflow protection mechanism 3 is arranged in the middle of the staged exhaust volume control mechanism 2, the staged exhaust volume control mechanism 2 includes an inner baffle 26 and a long bolt member 264, the inner baffle 26 is fixedly installed on the inner wall of the control valve chamber 1, a square rubber sleeve 261 is fixedly connected to the inner wall of the inner baffle 26, a lifting frame 262 is slidably connected to the inner wall of the square rubber sleeve 261, and a multi-layer through hole 263 is opened on the outer wall of the lifting frame 262, and the long bolt member 264 is fixedly connected to the inner wall of the inner baffle 26. 264 is rotatably connected to the bottom of the inner wall of the control valve compartment 1, the top of the long bolt member 264 is rotatably connected to the bottom of the lifting frame 262, and the bottom of the long bolt member 264 extends to the bottom of the control valve compartment 1. The long bolt member 264 is manually rotated to cause the long bolt member 264 to rise and fall relative to the control valve compartment 1, thereby driving the lifting frame 262 to slide on the inner wall of the square rubber sleeve 261, and can control different groups of multi-layer through holes 263 in the vertical direction to perform exhaust work, thereby realizing the function of increasing the exhaust flow rate in stages. When the long bolt member 264 is in the initial state, the inner cavity of the control valve compartment 1 is in a closed state.

[0022] As an implementation method in this embodiment, Figure 1-2As shown, the staged exhaust volume control mechanism 2 also includes a tempered glass plate 21, an exhaust pipe 22 and an intake pipe 23. The tempered glass plate 21 is fixedly installed on the front of the inner wall of the control valve chamber 1, the exhaust pipe 22 is fixedly connected to the left side of the control valve chamber 1, and the intake pipe 23 is fixedly connected to the right side of the control valve chamber 1. The outer walls of the exhaust pipe 22 and the intake pipe 23 are fixedly sleeved with connecting rings 24, and the inner walls of the exhaust pipe 22 and the intake pipe 23 are fixedly connected with rubber rings 25. The pipe of the external device is also provided with a connecting ring 24, which is convenient for the user to connect the present structure from the connecting ring 24 with the help of external bolts. The pipe of the external device can be plugged into the intake pipe 23, and the connection is sealed by the rubber ring 25. The design of the tempered glass plate 21 makes it convenient for the user to observe the status of the internal components of the control valve chamber 1.

[0023] As an implementation method in this embodiment, Figure 1 , Figure 4 As shown, the overflow protection mechanism 3 includes a hollow square tube 31, the hollow square tube 31 is fixedly connected to the middle part of the air intake pipe 23, the front of the hollow square tube 31 is fixedly connected to a digital pressure gauge 32, the top of the hollow square tube 31 is fixedly connected to a solenoid valve 33, the top of the solenoid valve 33 is fixedly connected to an internal threaded tube 34, the top of the internal threaded tube 34 is threadedly connected to an external threaded tube 35, the top of the external threaded tube 35 is fixedly connected to an air storage cylinder 36, the inner wall of the air storage cylinder 36 is slidably connected to a sealing slide plate 37, the top of the air storage cylinder 36 is provided with a circular groove 39, the top of the sealing slide plate 37 is welded with a cross sliding column 38, the outer wall of the cross sliding column 38 is slidably connected to the inner wall of the air storage cylinder 36 The top of the cross sliding column 38 extends to the top of the air storage cylinder 36. The digital pressure gauge 32 is an existing structure and its model can be set to BK05-KY2010, etc. The digital pressure gauge 32 is connected to the electromagnetic valve 33 through an external controller. The design of the digital pressure gauge 32 can monitor the air pressure inside the external air storage device. After the air pressure reaches the preset value, the electromagnetic valve 33 is controlled to open, so that the inert gas pushes up the sealing slide plate 37 and is stored in the air storage cylinder 36 to avoid the problem that excessive air pressure easily causes damage to the control valve compartment 1 as a whole. After the air pressure is restored, the cross sliding column 38 can be pressed down while the electromagnetic valve 33 is opened to complete the recovery of the overflowed gas.

[0024] Working principle: Connect the end of the intake pipe 23 to the output pipe of the external gas storage device, connect the end of the exhaust pipe 22 to the gas pipe, manually rotate the long bolt 264 to move the lifting frame 262 downward, and exhaust can be carried out through the inner cavity of the multi-layer through holes 263. By controlling different groups of multi-layer through holes 263 in the vertical direction to carry out exhaust work, the function of increasing the exhaust flow rate in stages can be achieved.

[0025] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. An inert gas control valve, comprising a control valve chamber (1), characterized in that: The control valve compartment (1) is provided with a staged exhaust volume control mechanism (2), and a gas overflow protection mechanism (3) is provided in the middle of the staged exhaust volume control mechanism (2); The staged exhaust volume control mechanism (2) comprises an inner baffle (26) and a long bolt member (264); the inner baffle (26) is fixedly mounted on the inner wall of the control valve chamber (1); a square rubber sleeve (261) is fixedly connected to the inner wall of the inner baffle (26); a lifting frame (262) is slidably connected to the inner wall of the square rubber sleeve (261); a plurality of through holes (263) are provided on the outer wall of the lifting frame (262); the long bolt member (264) is rotatably connected to the bottom of the inner wall of the control valve chamber (1); the top of the long bolt member (264) is rotatably connected to the bottom of the lifting frame (262); and the bottom of the long bolt member (264) extends to the bottom of the control valve chamber (1).

2. An inert gas control valve according to claim 1, characterized in that: The staged exhaust volume control mechanism (2) further comprises a tempered glass plate (21), an exhaust pipe (22) and an intake pipe (23); the tempered glass plate (21) is fixedly mounted on the front side of the inner wall of the control valve chamber (1); and the exhaust pipe (22) is fixedly connected to the left side of the control valve chamber (1).

3. An inert gas control valve according to claim 2, characterized in that: The air intake pipe (23) is fixedly connected to the right side of the control valve chamber (1); the outer walls of the exhaust pipe (22) and the air intake pipe (23) are both fixedly sleeved with a connecting ring (24); and the inner walls of the exhaust pipe (22) and the air intake pipe (23) are both fixedly connected with a rubber ring (25).

4. An inert gas control valve according to claim 2, characterized in that: The overflow protection mechanism (3) comprises a hollow square tube (31), the hollow square tube (31) is fixedly connected to the middle of the air intake pipe (23), a digital pressure gauge (32) is fixedly connected to the front of the hollow square tube (31), and a solenoid valve (33) is fixedly connected to the top of the hollow square tube (31).

5. An inert gas control valve according to claim 4, characterized in that: The top of the solenoid valve (33) is fixedly connected to an internal threaded tube (34), and the top of the internal threaded tube (34) is threadedly connected to an external threaded tube (35).

6. An inert gas control valve according to claim 5, characterized in that: The top of the externally threaded tube (35) is fixedly connected to an air storage cylinder (36), the inner wall of the air storage cylinder (36) is slidably connected to a sealing slide plate (37), and a circular groove (39) is formed on the top of the air storage cylinder (36).

7. An inert gas control valve according to claim 6, characterized in that: A cross sliding column (38) is welded to the top of the sealing slide plate (37), the outer wall of the cross sliding column (38) is slidably connected to the inner wall of the air storage cylinder (36), and the top of the cross sliding column (38) extends to the top of the air storage cylinder (36).

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