Special gas automatic supply device

Abstract

The utility model provides a special gas automatic supply device, which relates to the technical field of gas supply, comprising a U-shaped tube, a gas delivery pipe is installed at the middle position of the top end of the U-shaped tube, first valves are arranged on both sides of the top end of the U-shaped tube, a gas tank is arranged below the U-shaped tube, a connecting pipe is installed at the top end of the gas tank, a second valve is installed on the outer side of the connecting pipe, the U-shaped tube and the connecting pipe are connected through a connecting mechanism, and a positioning mechanism is arranged on the outer side of the connecting mechanism; by arranging a connecting mechanism at the bottom end of the U-shaped tube, utilizing the mutual cooperation among the mounting plate, mounting seat, sealing ring, limit plate and rotating sleeve of the connecting mechanism, the U-shaped tube and the connecting tube can be conveniently sealed and connected, making it more convenient and quick to connect the U-shaped tube and the connecting tube, so that it is more convenient to replace the gas tank, thereby greatly improving the convenience of the device when in use.

Description

Technical Field

[0001] The utility model relates to the technical field of gas supply, in particular to an automatic supply device for special gases. Background Art

[0002] Special gases are gases that meet specific purposes, including single gases or mixed gases. There are 259 single gases, including 115 electronic gases, 63 organic gases, 35 inorganic gases, 29 halogen gases, and 17 isotope gases. Special gases require automatic gas supply devices when used;

[0003] For example, application number CN216520948U discloses an "automatic supply device for special gases" and specifically discloses: two symmetrically arranged solenoid valves are installed on the U-shaped tube, the U-shaped tube is connected to a main tube, one end of the main tube is located between the two solenoid valves, the main tube is installed with a first valve, the top of the gas cylinder is connected to an air pipe, the air pipe is connected to a branch pipe, the branch pipe is installed with a second valve, the branch pipe is connected to the U-shaped tube through a nut, and a bracket is fixedly connected to the top of the base. However, in the above technology, when in use, the gas cylinder can only be moved conveniently, and it is inconvenient to conveniently connect the gas cylinder and the U-shaped tube, which makes it more cumbersome to replace the gas cylinder, thereby reducing the convenience of the device when in use. Therefore, the utility model proposes an automatic supply device for special gases to solve the above problems. Utility Model Content

[0004] In view of the above problems, the utility model proposes an automatic special gas supply device, which solves the problem that it is inconvenient to conveniently connect the gas cylinder and the U-shaped tube in the above technology, making the replacement of the gas cylinder more cumbersome, thereby reducing the convenience of the device when in use.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: an automatic supply device for special gas comprises a U-shaped tube, a gas delivery pipe is installed at the middle position of the top of the U-shaped tube, a first valve is arranged on both sides of the top of the U-shaped tube, a connecting mechanism is arranged at the bottom of the U-shaped tube, a gas tank is arranged below the U-shaped tube, a connecting pipe is installed at the top of the gas tank, a second valve is installed on the outside of the connecting pipe, the U-shaped tube is connected to the connecting pipe through the connecting mechanism, and a positioning mechanism is arranged on the outside of the connecting mechanism;

[0006] The connecting mechanism includes a mounting plate, a mounting seat, a sealing ring, a limit plate and a rotating sleeve. The mounting plate is installed on the top of the connecting pipe, the top of the mounting plate is installed with a mounting seat, the bottom end of the mounting seat is installed with a sealing ring, the bottom end of the U-shaped tube extends to the inside of the mounting seat, the outer wall of the U-shaped tube is installed with a limit plate, and the outer side of the limit plate is provided with a rotating sleeve.

[0007] A further improvement is that: the outer wall of the mounting seat is provided with an external thread, the inner wall of the rotating sleeve is provided with an internal thread, and a threaded connection is formed between the mounting seat and the rotating sleeve.

[0008] Further improvements are: the positioning mechanism includes a threaded groove, a threaded rod, a rotating wheel, a positioning block, a positioning groove, a positioning plate and a fixing assembly, the threaded groove is opened at both ends of the mounting plate, a threaded rod is arranged inside the threaded groove, a rotating wheel is installed at the bottom end of the threaded rod, a positioning block is rotatably installed at the top end of the threaded rod, the positioning plate is installed on the outer wall of the U-shaped tube, a positioning groove is opened inside the positioning plate, and the positioning block is located inside the positioning groove.

[0009] A further improvement is that: two positioning grooves are provided inside the positioning plate, and the two positioning grooves are symmetrically distributed about the central axis of the positioning plate.

[0010] A further improvement is that the fixing assembly comprises a positioning hole and a positioning pin, the positioning hole is opened through both ends of the positioning block, and the positioning pin is arranged through the inside of the positioning hole.

[0011] A further improvement is that the cross section of the positioning hole is larger than the cross section of the positioning pin, and a snap-fit ​​structure is formed between the positioning hole and the positioning pin.

[0012] The beneficial effects of the utility model are as follows: by arranging a connecting mechanism at the bottom end of the U-shaped tube, and utilizing the mutual cooperation between the mounting plate, the mounting seat, the sealing ring, the limit plate and the rotating sleeve of the connecting mechanism, the U-shaped tube and the connecting tube can be conveniently sealed and connected, making it more convenient and quick to connect the U-shaped tube and the connecting tube, so that it is more convenient to replace the gas cylinder, thereby greatly improving the convenience of the device when in use; by arranging a positioning mechanism on the outer side of the connecting mechanism, and utilizing the mutual cooperation between the threaded groove, the threaded rod, the rotating wheel, the positioning block, the positioning groove, the positioning hole, the positioning pin and the positioning plate of the positioning mechanism, the U-shaped tube and the connecting tube can be fixed for a second time, making the U-shaped tube and the connecting tube more stable when in use, and also making the connection between the U-shaped tube and the connecting tube less likely to leak when in use, thereby greatly improving the practicality of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the connecting mechanism of the utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of the positioning mechanism of the utility model;

[0016] Figure 4 It is a front view cross-sectional structural schematic diagram of the connection mechanism of the utility model.

[0017] Among them: 1. U-shaped tube; 2. gas pipe; 3. first valve; 4. gas tank; 5. connecting pipe; 6. second valve; 7. mounting plate; 8. mounting seat; 9. sealing ring; 10. limit plate; 11. rotating sleeve; 12. threaded groove; 13. threaded rod; 14. rotating wheel; 15. positioning block; 16. positioning groove; 17. positioning hole; 18. positioning pin; 19. positioning plate. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes an automatic special gas supply device, including a U-shaped tube 1, a gas supply pipe 2 is installed at the middle position of the top of the U-shaped tube 1, a first valve 3 is arranged on both sides of the top of the U-shaped tube 1, a connecting mechanism is arranged at the bottom end of the U-shaped tube 1, a gas tank 4 is arranged below the U-shaped tube 1, a connecting pipe 5 is installed at the top of the gas tank 4, a second valve 6 is installed on the outside of the connecting pipe 5, the U-shaped tube 1 is connected to the connecting pipe 5 by a connecting mechanism, and a positioning mechanism is arranged on the outside of the connecting mechanism.

[0020] The connecting mechanism includes a mounting plate 7, a mounting seat 8, a sealing ring 9, a limiting plate 10 and a rotating sleeve 11. The mounting plate 7 is installed on the top of the connecting pipe 5. The mounting seat 8 is installed on the top of the mounting plate 7. The sealing ring 9 is installed on the bottom end of the mounting seat 8. The bottom end of the U-shaped tube 1 extends to the inside of the mounting seat 8. The limiting plate 10 is installed on the outer wall of the U-shaped tube 1. The outer side of the limiting plate 10 is sleeved with a rotating sleeve 11. The outer wall of the mounting seat 8 is provided with an external thread, and the inner wall of the rotating sleeve 11 is provided with an internal thread. A threaded connection is formed between the mounting seat 8 and the rotating sleeve 11. When in use, the U-shaped tube 1 is inserted into the mounting seat 8. At this time, the rotating sleeve 11 is rotated. Since the mounting seat 8 and the rotating sleeve 11 are threadedly connected, the rotating sleeve 11 is used to drive the U-shaped tube 1 to move downward with the cooperation of the limit plate 10. With the cooperation of the sealing ring 9, the U-shaped tube 1 and the connecting tube 5 are sealed and connected, making the U-shaped tube 1 and the connecting tube 5 more convenient and quick to connect, so that the gas tank 4 is more convenient to replace, thereby greatly improving the convenience of the device when in use.

[0021] The positioning mechanism includes a threaded groove 12, a threaded rod 13, a rotating wheel 14, a positioning block 15, a positioning groove 16, a positioning plate 19 and a fixing assembly. The threaded groove 12 is penetrated and opened at both ends of the mounting plate 7. The threaded rod 13 is penetrated inside the threaded groove 12. The bottom end of the threaded rod 13 is installed with a rotating wheel 14. The top end of the threaded rod 13 is rotatably installed with a positioning block 15. The positioning plate 19 is installed on the outer wall of the U-shaped tube 1. The positioning plate 19 is provided with a positioning groove 16. The positioning block 15 is located inside the positioning groove 16. Two positioning grooves 16 are provided inside the positioning plate 19. The two positioning grooves 16 are symmetrically distributed about the central axis of the positioning plate 19. The fixing assembly includes a positioning hole 17 and a positioning pin 18. The positioning hole 17 is penetrated and opened at the positioning block At both ends of 15, a positioning pin 18 is provided inside the positioning hole 17, the cross section of the positioning hole 17 is larger than the cross section of the positioning pin 18, and a clamping structure is formed between the positioning hole 17 and the positioning pin 18. When in use, the rotating wheel 14 drives the threaded rod 13 to rotate. Since the thread groove 12 and the threaded rod 13 are threadedly connected, the threaded rod 13 moves inside the thread groove 12, thereby driving the positioning block 15 to move, and the positioning block 15 is moved to the inside of the positioning groove 16, and then the positioning pin 18 is inserted into the inside of the positioning hole 17, and the connection between the U-shaped tube 1 and the connecting tube 5 is fixed for a second time, so that the U-shaped tube 1 and the connecting tube 5 are more stable when in use, and the connection between the U-shaped tube 1 and the connecting tube 5 is not easy to leak when in use, thereby greatly improving the practicality of the device when in use.

[0022] Working principle: the staff first takes out the gas cylinder 4 and places it under the U-shaped tube 1, then inserts the U-shaped tube 1 into the inside of the mounting seat 8, and then rotates the rotating sleeve 11. Since the mounting seat 8 and the rotating sleeve 11 are threadedly connected, the rotating sleeve 11 is used to drive the U-shaped tube 1 to move downward with the cooperation of the limit plate 10, and the U-shaped tube 1 is sealed and connected with the sealing ring 9. Then the rotating wheel 14 is rotated to drive the threaded rod 13 to rotate. Since the thread groove 12 and the threaded rod 13 are threadedly connected, the threaded rod 13 moves inside the thread groove 12, thereby driving the positioning block 15 to move, and the positioning block 15 is moved to the inside of the positioning groove 16, and then Then, insert the locating pin 18 into the locating hole 17 to fix the connection between the U-shaped tube 1 and the connecting tube 5 for a second time. At this time, a first valve 3 and a second valve 6 can be opened respectively to use the special gas inside a gas tank 4. When the special gas inside a gas tank 4 is used up, open the other first valve 3 and the second valve 6, and close the first valve 3 and the second valve 6, pull out the locating pin 18 from the inside of the locating hole 17, reverse the threaded rod 13, move the locating block 15 out of the inside of the locating groove 16, and finally reverse the rotating sleeve 11 to separate the U-shaped tube 1 and the connecting tube 5. At this time, the gas tank 4 can be replaced, and the replacement will not affect the use of the special gas.

[0023] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A special gas automatic supply device, comprising a U-shaped tube (1), characterized in that: A gas delivery pipe (2) is installed at the middle position of the top of the U-shaped tube (1), first valves (3) are provided on both sides of the top of the U-shaped tube (1), a connecting mechanism is provided at the bottom of the U-shaped tube (1), a gas tank (4) is provided below the U-shaped tube (1), a connecting pipe (5) is installed at the top of the gas tank (4), a second valve (6) is installed on the outside of the connecting pipe (5), the U-shaped tube (1) and the connecting pipe (5) are connected via the connecting mechanism, and a positioning mechanism is provided on the outside of the connecting mechanism; The connecting mechanism comprises a mounting plate (7), a mounting seat (8), a sealing ring (9), a limiting plate (10) and a rotating sleeve (11); the mounting plate (7) is mounted on the top end of the connecting tube (5); the mounting seat (8) is mounted on the top end of the mounting plate (7); the sealing ring (9) is mounted on the bottom end of the mounting seat (8); the bottom end of the U-shaped tube (1) extends to the inside of the mounting seat (8); the limiting plate (10) is mounted on the outer wall of the U-shaped tube (1); and the outer side of the limiting plate (10) is sleeved with a rotating sleeve (11).

2. The automatic special gas supply device according to claim 1, characterized in that: The outer wall of the mounting seat (8) is provided with an external thread, and the inner wall of the rotating sleeve (11) is provided with an internal thread, so that a threaded connection is formed between the mounting seat (8) and the rotating sleeve (11).

3. The automatic special gas supply device according to claim 1, characterized in that: The positioning mechanism comprises a threaded groove (12), a threaded rod (13), a rotating wheel (14), a positioning block (15), a positioning groove (16), a positioning plate (19) and a fixing assembly, wherein the threaded groove (12) is formed through two ends of the mounting plate (7), a threaded rod (13) is formed through the threaded groove (12), a rotating wheel (14) is formed at the bottom end of the threaded rod (13), a positioning block (15) is rotatably formed at the top end of the threaded rod (13), the positioning plate (19) is mounted on the outer wall of the U-shaped tube (1), a positioning groove (16) is formed inside the positioning plate (19), and the positioning block (15) is located inside the positioning groove (16).

4. The automatic special gas supply device according to claim 3 is characterized in that: Two positioning grooves (16) are provided inside the positioning plate (19), and the two positioning grooves (16) are symmetrically distributed about the central axis of the positioning plate (19).

5. The automatic special gas supply device according to claim 4, characterized in that: The fixing assembly comprises a positioning hole (17) and a positioning pin (18); the positioning hole (17) is opened through both ends of the positioning block (15); and the positioning pin (18) is arranged through the interior of the positioning hole (17).

6. The automatic special gas supply device according to claim 5, characterized in that: The cross section of the positioning hole (17) is larger than the cross section of the positioning pin (18), and a snap-fit ​​structure is formed between the positioning hole (17) and the positioning pin (18).

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