High-purity gas filling pressure accurate regulation and control device

Abstract

The utility model discloses a high-purity gas filling pressure accurate regulation and control device, relates to the technical field of gas filling, and aims to solve the problems that sealing needs to be completed by reversely rotating an operating rod during emergency cut-off, the operation response is delayed, and gas leakage is easily caused. A connecting cover is arranged on the top face of the air conveying through pipe, an adjusting piece is arranged on the top face of the connecting cover, a cavity is formed in the adjusting piece, the connecting rod penetrates through the cavity, an auxiliary assembly and a quick reset assembly are arranged in the cavity, the quick reset assembly is in threaded connection with the connecting rod, and a driving assembly for starting the quick reset assembly is arranged on the top face of the adjusting piece. Through the synergistic effect of the rapid reset assembly and the auxiliary assembly, the four-linkage butt joint block separation technology is adopted, gas circuit cut-off can be rapidly completed, and compared with a traditional structure, the response speed is remarkably increased. And a corrugated limiting releasing strip in the driving assembly is matched with a wedge-shaped adjusting groove, so that quick separation of single-action multi-assembly linkage is realized.

Description

Technical Field

[0001] This utility model relates to the field of gas filling technology, and in particular to a device for precise control of high-purity gas filling pressure. Background Technology

[0002] With the continuous development of industrial gas filling technology, the safety and response speed of gas pressure control devices have become a key focus of the industry. Traditional gas control devices generally adopt a one-way valve structure combined with manual screw adjustment, which has the following technical defects: 1. In case of emergency shut-off, the operating rod needs to be rotated in the opposite direction to complete the seal, and the delayed operation response can easily lead to gas leakage; 2. The pressure regulation process relies on a single spring deformation control, which cannot achieve precise gradient pressure maintenance.

[0003] Therefore, this application provides a device for precise control of high-purity gas filling pressure to meet the requirements. Utility Model Content

[0004] The purpose of this application is to provide a high-purity gas filling pressure precise control device, which aims to solve the problem that the operation rod needs to be rotated in the opposite direction to complete the sealing during emergency cutoff, and the operation response delay is prone to gas leakage.

[0005] To achieve the above objectives, this application provides the following technical solution: a high-purity gas filling pressure precision control device, comprising a gas supply pipe and a regulating pipe, wherein the gas supply pipe is a three-way structure, and a regulating pipe is provided inside the gas supply pipe, the regulating pipe is also a three-way structure, and a connecting rod is provided inside the gas supply pipe, the connecting rod passing through the regulating pipe and exiting the gas supply pipe, characterized in that: a bottom cover is provided at the bottom of the gas supply pipe, and a first spring is provided on the top surface of the middle part of the bottom cover, and a plug adapted to the inlet of the regulating pipe is provided on the top surface of the first spring, and the connecting rod is provided on the top surface of the plug;

[0006] The top surface of the gas supply pipe is provided with a connecting cover, and the top surface of the connecting cover is provided with an adjusting component. The adjusting component has a chamber inside, a connecting rod passes through the chamber, and an auxiliary component and a quick reset component are provided inside the chamber. The quick reset component is threadedly connected to the connecting rod, and a drive component for activating the quick reset component is provided on the top surface of the adjusting component.

[0007] Preferably, the auxiliary component includes a reset plate and a second spring. A set of reset plates is provided on the connecting rod, and a set of second springs is press-fitted between the reset plates and the bottom surface of the chamber.

[0008] Preferably, the quick reset assembly includes a top cover and a limiting block, a movable part, a No. 3 spring, a docking block, an adjusting rod, an adjusting disc, and a No. 4 spring. The top cover is threadedly connected to the top of the adjusting part, and multiple sets of limiting blocks are suspended on the bottom surface of the top cover. The limiting blocks have a U-shaped cross-section, and the movable part is slidably connected to the limiting blocks. The movable part has a docking block at its inner end. The docking block is an arc-shaped part, and the outer wall of the docking block has a threaded section. The outer wall of the connecting rod has a thread that matches the threaded section. A No. 3 spring is press-fitted between the docking block and the limiting block. An adjusting rod that can move the movable part back and forth is provided above the limiting block. An adjusting disc is provided on the outer wall of the adjusting rod. A No. 4 spring is press-fitted between the adjusting disc and the limiting block, and the adjusting rod passes through the top cover and is slidably connected to the drive assembly.

[0009] Preferably, the end face of the limiting block is provided with a movable groove, a positioning hole communicating with the end face is provided in the movable groove, an adjustment hole communicating with the outside is provided on the inner top surface of the positioning hole, and the adjustment rod is slidably connected in the adjustment hole.

[0010] The movable component includes a movable column, a positioning column, and a limiting plate. The movable column is cylindrical and slidably connected in the movable groove. The positioning column is rectangular and is adapted to the positioning hole. A limiting plate for limiting is provided on the end face of the positioning column. An adjustment groove with a wedge-shaped cross-section is provided on the top surface of the limiting plate. The bottom of the adjustment rod is slidably connected to the adjustment groove. The end of the movable column is connected to a docking block.

[0011] Preferably, the drive assembly includes a rotating component and a limit release strip. The rotating component is annular and rotatably connected to the top surface of the top cover. A limit release strip is provided on the inner wall of the rotating component, and the limit release strip is slidably connected to the adjusting rod.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] This invention, through the synergistic action of the rapid reset component and auxiliary components, employs a four-linkage docking block separation technology to quickly cut off the air path, significantly improving the response speed compared to traditional structures. The corrugated limit release strip in the drive component cooperates with the wedge-shaped adjustment groove to achieve rapid separation of multiple components in a single-action manner.

[0014] This invention utilizes a threaded connection block and connecting rod, along with an adjustable limit block structure, to achieve precise pressure adjustment. The preload adjustment mechanism of the No. 4 spring and the adjusting disc further enhances pressure stability.

[0015] This invention employs a multi-spring linkage system, utilizing the coordinated three-dimensional movement of the reset plate, docking block, and adjusting rod to ensure 100% reset reliability even under extreme conditions. The second spring of the auxiliary component and the fourth spring of the quick reset component form a double-safety mechanism. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a quick reset component of the present invention;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the limiting block of this utility model;

[0021] Figure 5 This is a schematic diagram of the movable component structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the drive component structure of this utility model.

[0023] In the diagram: 1. Gas supply pipe; 2. Adjustment pipe; 3. Bottom cover; 4. Spring No. 1; 5. Plug; 6. Connecting cover; 7. Connecting rod; 8. Reset plate; 9. Spring No. 2; 10. Adjusting component; 11. Top cover; 12. Limiting block; 120. Movable groove; 121. Positioning hole; 122. Adjusting hole; 13. Movable component; 130. Movable column; 131. Positioning column; 132. Limiting plate; 133. Adjusting groove; 14. Spring No. 3; 15. Connecting block; 16. Adjusting rod; 17. Adjusting plate; 18. Spring No. 4; 19. Rotating component; 20. Limit release strip. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Reference Figure 1-6The high-purity gas filling pressure precision control device shown includes a gas supply pipe 1 and a regulating pipe 2, a bottom cover 3, and a connecting rod 7. Both the gas supply pipe 1 and the regulating pipe 2 are three-way structures, and the regulating pipe 2 is smaller than the gas supply pipe 1. The regulating pipe 2 is located at the node of the gas supply pipe 1. A set of threaded bottom covers 3 is provided at the bottom of the vertical section of the gas supply pipe 1, and a first spring 4 is provided on the top surface of the bottom cover 3. A plug 5 is provided on the top surface of the first spring 4. The plug 5 abuts against the air inlet of the regulating pipe 2 through the first spring 4 to prevent the gas supply pipe 1 from being blocked. The air inlet and outlet are interconnected. A set of connecting rods 7 are provided on the top surface of the plug 5. The connecting rods 7 pass through the regulating pipe 2 and the air supply pipe 1. A connecting cover 6 is provided on the top surface of the air supply pipe 1. An adjusting member 10 is provided on the top of the connecting cover 6. The adjusting member 10 is cylindrical and has a chamber on its top surface. A set of top covers 11 are threadedly connected to the top surface of the chamber. The connecting rods 7 pass through the adjusting member 10 and the top covers 11. A quick reset assembly and a drive assembly are threadedly connected to the connecting rods 7 in the chamber. An auxiliary assembly is provided on the connecting rods 7.

[0026] As one implementation method in this embodiment, the auxiliary component is provided with a set of reset discs 8 on the outer wall of the connecting rod 7. A set of second springs 9 are provided between the reset discs 8 and the bottom surface of the chamber. When the control device is used, after the gas filling is completed, when the use state of the quick reset component is released by the drive component, the auxiliary component helps the connecting rod 7 to rise and reset quickly, so that the plug 5 at the bottom of the connecting rod 7 can block the air inlet of the regulating pipe 2.

[0027] As one implementation method in this embodiment, the quick reset component has the following features: a U-shaped limiting block 12 is provided on the bottom surface of the top cover 11; a set of movable grooves 120 is provided on the end face of the limiting block 12; and a positioning hole 121 communicating with the movable grooves 120 is provided on the other end face of the limiting block 12. An adjustment hole 122 communicating with the outside is provided on the inner top surface of the positioning hole 121. A movable component 13 is slidably connected within the movable grooves 120 and the positioning hole 121. A set of docking blocks 15 is provided on the opposite side of the movable component 13. The docking blocks 15 are arc-shaped and have threaded sections on their outer walls. These threaded sections engage with the threads on the connecting rod 7. In use, the connecting rod 7 adjusts its height with the cooperation of the four sets of docking blocks 15. After the inflation task is completed, the top of the top cover 11 is activated. The drive assembly moves the adjusting rod 16 up and down on the top cover 11. The adjusting rod 16 moves down, driving the movable parts 13, thereby adjusting the distance between the four sets of movable parts 13. After releasing the limit on the connecting rod 7, the control device can be quickly reset by the auxiliary assembly and the first spring 4. Compared with the existing control device, which requires the reverse rotation of the connecting rod 7, the solution in this embodiment is convenient and quick. An adjusting plate 17 is provided on the outer wall of the adjusting rod 16. A third spring 14 is pressed between the adjusting plate 17 and the limiting block 12. The function of the third spring 14 is to reset the adjusting rod 16. A fourth spring 18 is pressed between the docking block 15 and the limiting block 12. After the connecting rod 7 is reset, the four sets of docking blocks 15 are re-aligned under the action of the fourth spring 18, and the connecting rod 7 is limited.

[0028] As one embodiment of this example, the movable component 13: the movable column 130 is cylindrical and is slidably connected in the movable groove 120. The rectangular positioning column 131 is adapted to the positioning hole 121, and a wedge-shaped adjustment groove 133 is provided on the top surface of the positioning column 131. The adjustment groove 133 is positioned corresponding to the end of the adjustment rod 16. After the adjustment rod 16 is inserted into the adjustment groove 133, the movable component 13 can be moved outward through the structure of the adjustment groove 133. A limiting plate 132 for limiting is provided on the end face of the positioning column 131 to prevent the movable component 13 from falling off.

[0029] As one embodiment of this example, the driving component: the rotating part 19 is a ring-shaped part with a corrugated limit release strip 20 on the inner wall of the rotating part 19. The bottom surface of the limit release strip 20 is slidably connected to the top surface of the adjusting rod 16. When it is necessary to release the limit on the connecting rod 7, the rotating part 19 is rotated so that the top of the adjusting rod 16 slides on the limit release strip 20 and moves from the highest point to the lowest point, so that the quick reset component is separated from the connecting rod 7.

[0030] The working principle of this utility model is as follows: When filling gas using the control device, the inlet end of the gas supply pipe 1 is connected to the gas source assembly, and its outlet end is connected to the gas cylinder. Pressure gauges for detecting gas pressure are installed on both the left and right sides of the gas supply pipe 1. The gas source assembly is turned on, and then the T-shaped connecting rod 7 is rotated. The connecting rod 7 engages with the threaded section of the end face of the mating block 15 through the thread on its outer wall, causing the connecting rod 7 to descend within the chamber of the adjusting component 10. During the descent of the connecting rod 7, the reset plate 8 on its outer wall presses down the second spring 9 located in the chamber. At the same time, the bottom of the connecting rod 7 causes the plug 5 to move down, separating the plug 5 from the air inlet of the adjusting pipe 2. During this process, the plug 5 presses down the first spring 4 located on the bottom cover 3. Through the operation of the above structures, the left and right sides of the gas supply pipe 1 are interconnected, and the gas passes through the adjusting pipe 2 located at the middle node of the gas supply pipe 1. According to the operational requirements, the operator can continue to rotate the connecting rod 7 to raise and lower, thereby controlling the height of the plug 5 and changing the filling pressure.

[0031] After the filling task is completed, in order to quickly interrupt the gas supply path, the rotating component 19 located at the top of the top cover 11 is rotated. The rotating component 19, through the corrugated limit release strip 20 provided on its inner wall, drives the adjusting rod 16 to move up and down on the top cover 11. The descending adjusting rod 16 compresses the No. 4 spring 18 through the adjusting plate 17 provided on the outer wall, so that the No. 4 spring 18 is in an energy storage state. Then the adjusting rod 16 passes through the adjusting hole 122 on the limit block 12 and then inserts into the adjusting groove 133 of the movable component 13. The groove is wedge-shaped, so as the adjusting rod 16 moves down, it pushes the positioning pin 131 to slide in the adjusting hole 122, and through the positioning pin 131, it drives the movable pin 130 to slide in the movable groove 120, pulling the docking block 15 at the end of the movable part 13. When the docking block 15 moves, it squeezes the third spring 14, so that the third spring 14 is in an energy storage state. Since the docking block 15 is separated from the connecting rod 7, the first spring 4 and the second spring 9, which have stored energy, elastically push the plug head 5 and the reset plate 8 upward, thus completing the cut-off of the air supply pipe 1.

[0032] Then, the rotating part 19 continues to rotate. Under the action of the fourth spring 18 and the third spring 14, the moving part 13 and the adjusting rod 16 are reset, the docking block 15 re-contacts the connecting rod 7, and under the action of the limiting plate 132, the moving part 13 is prevented from falling off.

[0033] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0034] Components not described in detail in this article are existing technologies.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-purity gas filling pressure precision control device, comprising a gas supply pipe (1) and a regulating pipe (2), wherein the gas supply pipe (1) is a three-way structure, and a regulating pipe (2) is provided inside the gas supply pipe (1), the regulating pipe (2) is also a three-way structure, and a connecting rod (7) is provided inside the gas supply pipe (1), the connecting rod (7) passing through the regulating pipe (2) and exiting the gas supply pipe (1), characterized in that: A bottom cover (3) is provided at the bottom of the gas supply pipe (1), and a first spring (4) is provided on the top surface of the middle part of the bottom cover (3), and a plug (5) adapted to the inlet of the regulating pipe (2) is provided on the top surface of the first spring (4), and the connecting rod (7) is provided on the top surface of the plug (5). The top surface of the gas supply pipe (1) is provided with a connecting cover (6), and an adjusting component (10) is provided on the top surface of the connecting cover (6). The adjusting component (10) has a chamber inside, the connecting rod (7) passes through the chamber, and an auxiliary component and a quick reset component are provided in the chamber. The quick reset component is threadedly connected to the connecting rod (7), and a drive component for activating the quick reset component is provided on the top surface of the adjusting component (10).

2. The high-purity gas filling pressure precise control device according to claim 1, characterized in that: The auxiliary component includes a reset plate (8) and a second spring (9). A set of reset plates (8) is provided on the connecting rod (7), and a set of second springs (9) is press-fitted between the reset plate (8) and the bottom surface of the chamber.

3. The high-purity gas filling pressure precise control device according to claim 1, characterized in that: The quick reset assembly includes a top cover (11), a limiting block (12), a movable part (13), a third spring (14), a docking block (15), an adjusting rod (16), an adjusting disc (17), and a fourth spring (18). The top cover (11) is threaded to the top of the adjusting part (10), and multiple sets of limiting blocks (12) are suspended on the bottom surface of the top cover (11). The limiting block (12) has a U-shaped cross-section, and the movable part (13) is slidably connected to the limiting block (12). The docking block (15) is provided at the inward end of the movable part (13). The docking block (15) is an arc-shaped part. The outer wall of the docking block (15) is provided with a threaded section, and the outer wall of the connecting rod (7) is provided with a thread that matches the threaded section. A No. 3 spring (14) is press-fitted between the docking block (15) and the limiting block (12). An adjusting rod (16) that can move the movable part (13) back and forth is provided above the limiting block (12). An adjusting plate (17) is provided on the outer wall of the adjusting rod (16). A No. 4 spring (18) is press-fitted between the adjusting plate (17) and the limiting block (12). The adjusting rod (16) passes through the top cover (11) and is slidably connected to the drive assembly.

4. The high-purity gas filling pressure precise control device according to claim 3, characterized in that: The end face of the limiting block (12) is provided with a movable groove (120), and a positioning hole (121) communicating with the end face is provided in the movable groove (120). An adjustment hole (122) communicating with the outside is provided on the inner top surface of the positioning hole (121), and the adjustment rod (16) is slidably connected in the adjustment hole (122). The movable component (13) includes a movable column (130), a positioning column (131), and a limiting plate (132). The movable column (130) is cylindrical and is slidably connected in the movable groove (120). The positioning column (131) is rectangular and is adapted to the positioning hole (121). A limiting plate (132) for limiting is provided on the end face of the positioning column (131). An adjustment groove (133) with a wedge-shaped cross-section is provided on the top surface of the limiting plate (132). The bottom of the adjusting rod (16) is slidably connected to the adjustment groove (133). The end of the movable column (130) is connected to the docking block (15).

5. The high-purity gas filling pressure precise control device according to claim 4, characterized in that: The drive assembly includes a rotating component (19) and a limit release strip (20). The rotating component (19) is annular and rotatably connected to the top surface of the top cover (11). The limit release strip (20) is provided on the inner wall of the rotating component (19). The limit release strip (20) is slidably connected to the adjusting rod (16).

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