Micro multi-gas mixing cabinet

Abstract

The utility model discloses a trace multi-gas mixing cabinet which comprises a mixing cabinet body, a support frame fixed at the bottom of the mixing cabinet body, a gas mixing tank fixedly mounted at the upper end of the support frame and a butt joint cylinder, and butt joint pipes are fixedly connected to the left side and the right side of the butt joint cylinder. The butt-joint cylinder drives the butt-joint pipe to be inserted into the connecting pipe and the mounting pipe, second sealing rings are arranged between the butt-joint cylinder and the connecting pipe in an attached mode, second sealing rings are arranged between the butt-joint cylinder and the mounting pipe in an attached mode, and first sealing rings are arranged between the butt-joint pipe and the connecting pipe in an attached mode, and first sealing rings are arranged between the butt-joint pipe and the mounting pipe in an attached mode; the positioning mechanisms are arranged on the outer side of the butt joint cylinder at equal angles. According to the trace multi-gas mixing cabinet, butt joint installation is convenient, double sealing can be carried out on the connecting position, the actual sealing effect is greatly improved, positioning among the connecting pipe, the installing pipe and the butt joint cylinder is convenient, the overall structural design is simple, dismounting and mounting are convenient, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas mixing cabinets, in particular to a micro multi-gas mixing cabinet. Background Technique

[0002] A gas mixing cabinet refers to a device that can pour multiple gases into the cabinet body to fully mix the gases. At the same time, a gas mixing tank is installed inside the mixing cabinet to provide a place for gas mixing, and can provide multiple accurate and constant flows for the use terminal;

[0003] However, in the actual use process of the general gas mixing cabinet, it is not convenient to quickly and stably connect and install the gas mixing pipe with the external gas inlet and outlet pipes, and the sealing performance of the connection part needs to be improved, and it is not convenient to maintain the mixing cabinet;

[0004] Therefore, we propose a micro multi-gas mixing cabinet to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a micro multi-gas mixing cabinet to solve the problems in the above background technique that in the actual use process of the general gas mixing cabinet, it is not convenient to quickly and stably connect and install the gas mixing pipe with the external gas inlet and outlet pipes, and the sealing performance of the connection part needs to be improved, and it is not convenient to maintain the mixing cabinet.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a micro multi-gas mixing cabinet, including a mixing cabinet body, a support frame fixed at the bottom of the mixing cabinet body, and a gas mixing tank fixedly installed at the upper end of the support frame;

[0007] Among them, both the left and right ends of the gas mixing tank are fixedly connected with connecting pipes, and a pressure gauge is installed in the middle of the connecting pipes;

[0008] It further includes:

[0009] A docking cylinder, both the left and right sides of the docking cylinder are fixedly connected with docking pipes, and the docking cylinder drives the docking pipes to be respectively inserted into the connecting pipes and the installation pipes, and second sealing rings are respectively arranged in a fitting manner between the docking cylinder and the connecting pipes, and between the docking cylinder and the installation pipes;

[0010] Among them, first sealing rings are respectively arranged in a fitting manner between the docking pipes and the connecting pipes, and between the docking pipes and the installation pipes;

[0011] A positioning mechanism, the positioning mechanism is arranged on the outer side of the docking cylinder at equal angles, and the positioning mechanism combines a fixing plate, a docking plate and a convex block to perform installation positioning on the docking cylinder, the connecting pipe and the installation pipe.

[0012] Preferably, the installation pipes are respectively inserted into the left and right ends of the mixing cabinet body, and bumps are fixedly connected to the sides of the installation pipes and the connecting pipes, and the bumps are inserted into the middle of the docking plate.

[0013] Preferably, the bumps, the docking plates, the fixing plates and the positioning mechanisms are arranged in a one-to-one correspondence.

[0014] Preferably, the docking plates respectively penetrate through the left and right ends of the fixing plates, and the fixing plates are fixedly connected to the outer sides of the docking cylinders.

[0015] Preferably, the positioning mechanism includes a fixed block fixedly connected to one end of the docking plate close to the docking cylinder, a spring arranged inside the fixing plate, a movable block fixedly connected to the movable end of the spring, movable rods fixedly connected to the front and rear ends of the movable block, and a movable column fixedly connected to the middle of the movable block.

[0016] Preferably, the fixed block is connected to the fixing plate by a card slot, and the fixed block is arranged in a fitting manner with the movable block, and the side surface of the fixed block is fitted with the side surface of the movable block.

[0017] Preferably, the movable rod is connected to the fixing plate by a card slot, and a sliding structure is formed between the fixing plate and the movable column, and the movable column drives the movable block to form a telescopic structure in the middle of the fixing plate.

[0018] Preferably, the installation pipe at the left end of the mixing cabinet body is connected to the intake pipe, and multiple intake branch pipes are arranged on the side surface of the intake pipe, and the installation pipe at the right end of the mixing cabinet body is connected to the exhaust pipe;

[0019] Wherein, air valves are installed in the middle of the intake branch pipe and the exhaust pipe.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this micro multi-gas mixing cabinet, through the settings of the docking cylinder and the docking pipe, it is convenient to dock and install the connecting pipe and the installation pipe. Combined with the settings of the first sealing ring and the second sealing ring, the connection part can be double-sealed, greatly improving the actual sealing effect. Moreover, combined with the settings of the bump, the docking plate, the fixing plate and the positioning mechanism, it is convenient to position the connecting pipe, the installation pipe and the docking cylinder. The overall structure design is relatively simple, the disassembly and assembly are relatively convenient, and the maintenance is convenient;

[0021] 1. There are a support frame, a docking cylinder and a docking pipe. Through the support frame, the gas mixing tank inside the mixing cabinet body can be supported and installed. Combined with the settings of the docking cylinder and the docking pipe, it is convenient to dock and install the connecting pipe and the installation pipe;

[0022] 2. A first sealing ring and a second sealing ring are provided. The second sealing ring is sleeved on the outer side of the butt joint pipe, and the second sealing ring is respectively attached between the butt joint cylinder and the installation pipe and between the butt joint cylinder and the connecting pipe. Moreover, the first sealing ring is respectively attached between the butt joint pipe and the installation pipe and between the butt joint pipe and the connecting pipe, greatly improving the actual sealing effect and preventing gas leakage.

[0023] 3. A convex block, a butt joint plate, a fixing plate and a positioning mechanism are provided. The convex block, the butt joint plate, the fixing plate and the positioning mechanism are all arranged at equal angles on the outer side of the butt joint cylinder. And the positioning mechanism includes a fixed block, a spring, a movable block, a movable rod and a movable column. Through the setting of the convex block, the butt joint plate, the fixing plate and the positioning mechanism, it is convenient to stably limit between the connecting pipe, the installation pipe and the butt joint cylinder, and the fastening property is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0025] Figure 2 is a schematic diagram of the front sectional structure of the present utility model;

[0026] Figure 3 is of the present utility model Figure 2 is an enlarged schematic diagram of part A in the present utility model;

[0027] Figure 4 is an exploded schematic diagram of the connection of the connecting pipe, the installation pipe, the butt joint cylinder and the butt joint pipe of the present utility model;

[0028] Figure 5 is a schematic diagram of the side view structure of the connection of the installation pipe, the butt joint cylinder, the butt joint plate and the fixing plate of the present utility model;

[0029] Figure 6 is a schematic diagram of the front sectional structure of the connection of the butt joint plate, the fixing plate, the movable block and the movable rod of the present utility model;

[0030] Figure 7 is a schematic diagram of the front view structure of the connection of the fixed block, the movable block and the movable column of the present utility model.

[0031] In the figure: 1. Mixing cabinet body; 2. Support frame; 3. Gas mixing tank; 4. Connecting pipe; 5. Pressure gauge; 6. Installation pipe; 7. Butt joint cylinder; 8. Butt joint pipe; 9. First sealing ring; 10. Second sealing ring; 11. Convex block; 12. Butt joint plate; 13. Fixing plate; 14. Positioning mechanism; 15. Fixed block; 16. Spring; 17. Movable block; 18. Movable rod; 19. Movable column; 20. Inlet pipe; 21. Inlet branch pipe; 22. Exhaust pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figure 1-7 , the present invention provides a technical solution: a trace multi-gas mixing cabinet, including a mixing cabinet body 1, a support frame 2, a gas mixing tank 3, a connecting pipe 4, a pressure gauge 5, an installation pipe 6, a docking cylinder 7, a docking pipe 8, a first sealing ring 9, a second sealing ring 10, a convex block 11, a docking plate 12, a fixing plate 13, a positioning mechanism 14, a fixing block 15, a spring 16, a movable block 17, a movable rod 18, a movable column 19, an air inlet pipe 20, an air inlet branch pipe 21, and an exhaust pipe 22.

[0034] When using this trace multi-gas mixing cabinet, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a support frame 2 is fixed at the bottom of the mixing cabinet body 1, and the gas mixing tank 3 is fixedly installed at the upper end of the support frame 2. At the same time, connecting pipes 4 are fixedly connected to both the left and right sides of the gas mixing tank 3. A pressure gauge 5 is installed in the middle of the connecting pipe 4. Moreover, the installation pipe 6 is inserted and installed at both ends of the mixing cabinet body 1. First, the docking pipe 8 is driven by the docking cylinder 7 to be respectively inserted into the middle of the connecting pipe 4 and the installation pipe 6. And a first sealing ring 9 is arranged in a fitting manner between the docking pipe 8 and the installation pipe 6, and between the docking pipe 8 and the connecting pipe 4. At the same time, a second sealing ring 10 is arranged in a fitting manner between the docking cylinder 7 and the installation pipe 6, and between the docking cylinder 7 and the connecting pipe 4. Through the setting of the first sealing ring 9 and the second sealing ring 10, the effect of double sealing is achieved, greatly improving the actual sealing effect and preventing gas leakage;

[0035] As Figure 5 , Figure 6 and Figure 7As shown, the bumps 11, docking plates 12, fixing plates 13 and positioning mechanisms 14 are arranged in one-to-one correspondence. The positioning mechanism 14 includes a fixed block 15 fixedly connected to one end of the docking plate 12 close to the docking cylinder 7, a spring 16 arranged inside the fixing plate 13, a movable block 17 fixedly connected to the movable end of the spring 16, movable rods 18 fixedly connected to the front and rear ends of the movable block 17, and a movable column 19 fixedly connected to the middle of the movable block 17. The docking plate 12 is engaged with the bump 11. At the same time, the docking plate 12 is respectively in close contact with the mounting pipe 6 and the connecting pipe 4. The docking plate 12 is inserted into the middle of the fixing plate 13. Moreover, the docking plate 12 drives the fixed block 15 to be connected in a card slot with the fixing plate 13. At the same time, the side surface of the fixed block 15 fits with the side surface of the movable block 17. When the fixed block 15 contacts the movable block 17, the fixed block 15 squeezes the movable block 17, causing the movable block 17 to squeeze the spring 16. At this time, the spring 16 undergoes elastic deformation;

[0036] The movable block 17 drives the movable rod 18 to slide between the movable block 17 and the fixing plate 13. At the same time, the movable block 17 drives the movable column 19 to slide between the movable block 17 and the fixing plate 13, improving the stability of the movable block 17 during movement. When the fixed block 15 releases the extrusion of the movable block 17, at this time, the spring 16 recovers its elastic deformation and pushes the movable block 17 to move, so that the movable block 17 is in a fitting state with the fixed block 15, as shown in Figure 6 and Figure 7 the state shown, thereby facilitating the limitation between the docking plate 12 and the fixing plate 13, preventing loosening between the docking plate 12 and the bump 11. Moreover, the docking plates 12 are symmetrically arranged at the left and right ends of the docking cylinder 7, thereby facilitating the positioning between the connecting pipe 4, the mounting pipe 6 and the docking cylinder 7. The overall structural design is relatively simple, the installation and docking are relatively convenient, and the fastening performance is good;

[0037] As Figure 1 and Figure 2 shown, the connecting pipe 4 on the left side of the mixing cabinet body 1 is connected to the intake pipe 20 through the mounting pipe 6, the docking cylinder 7 and the docking pipe 8. And multiple intake branch pipes 21 are arranged on the side surface of the intake pipe 20. The connecting pipe 4 at the right end of the mixing cabinet body 1 is connected to the exhaust pipe 22 through the mounting pipe 6, the docking cylinder 7 and the docking pipe 8. Moreover, valves are arranged on both the intake branch pipes 21 and the exhaust pipe 22. A variety of trace gases are introduced into the gas mixing tank 3 through the intake branch pipes 21 for full mixing. And after the mixing is completed, it is then discharged outward through the exhaust pipe 22 for use by an external terminal. Moreover, a flow meter and a gas density detector are installed in the middle of the exhaust pipe 22, which can monitor the flow rate and density of the discharged gas.

[0038] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A trace multi-gas mixing cabinet, comprising a mixing cabinet body (1), a support frame (2) fixed at the bottom of the mixing cabinet body (1), and a gas mixing tank (3) fixedly mounted on the upper end of the support frame (2); in, The left and right ends of the gas mixing tank (3) are both fixedly connected with connecting pipes (4), and a pressure gauge (5) is installed in the middle of the connecting pipe (4); It is characterized by further comprising: A docking tube (7), wherein the left and right sides of the docking tube (7) are fixedly connected with docking tubes (8), and the docking tube (7) drives the docking tube (8) to be respectively inserted into the connecting tube (4) and the mounting tube (6), and a second sealing ring (10) is fitted between the docking tube (7) and the connecting tube (4), and between the docking tube (7) and the mounting tube (6); Wherein, a first sealing ring (9) is provided between the butt joint pipe (8) and the connecting pipe (4) and between the butt joint pipe (8) and the mounting pipe (6); A positioning mechanism (14) is arranged at an equal angle on the outside of the docking tube (7), and the positioning mechanism (14) is combined with a fixing plate (13), a docking plate (12) and a protrusion (11) to perform installation and positioning between the docking tube (7), the connecting tube (4) and the installation tube (6).

2. A trace multi-gas mixing cabinet according to claim 1, characterized in that: The mounting pipe (6) is respectively plugged into the left and right ends of the mixing cabinet body (1), and the sides of the mounting pipe (6) and the connecting pipe (4) are fixedly connected with a protrusion (11), and the protrusion (11) is plugged into the middle of the docking plate (12).

3. A trace multi-gas mixing cabinet according to claim 2, characterized in that: The protrusion (11), the docking plate (12), the fixing plate (13) and the positioning mechanism (14) are all arranged in a one-to-one correspondence.

4. A trace multi-gas mixing cabinet according to claim 2, characterized in that: The docking plate (12) respectively penetrates the left and right ends of the fixing plate (13), and the fixing plate (13) is fixedly connected to the outside of the docking tube (7).

5. The trace multi-gas mixing cabinet according to claim 1, characterized in that: The positioning mechanism (14) comprises a fixed block (15) fixedly connected to one end of the docking plate (12) close to the docking tube (7), a spring (16) arranged inside the fixed plate (13), a movable block (17) fixedly connected to the movable end of the spring (16), a movable rod (18) fixedly connected to the front and rear ends of the movable block (17), and a movable column (19) fixedly connected to the middle of the movable block (17).

6. A trace multi-gas mixing cabinet according to claim 5, characterized in that: The fixed block (15) and the fixed plate (13) are connected by a slot, and the fixed block (15) and the movable block (17) are arranged in a close fit, and the side surface of the fixed block (15) and the side surface of the movable block (17) are matched.

7. The trace multi-gas mixing cabinet according to claim 5, characterized in that: The movable rod (18) is connected to the fixed plate (13) by a slot, and a sliding structure is formed between the fixed plate (13) and the movable column (19), and the movable column (19) drives the movable block (17) to form a telescopic structure in the middle of the fixed plate (13).

8. The trace multi-gas mixing cabinet according to claim 1, characterized in that: The mounting pipe (6) at the left end of the mixing cabinet body (1) is connected to the air intake pipe (20), and a plurality of air intake branch pipes (21) are arranged on the side of the air intake pipe (20), and the mounting pipe (6) at the right end of the mixing cabinet body (1) is connected to the exhaust pipe (22); Wherein, air valves are installed in the middle of the air intake branch pipe (21) and the exhaust pipe (22).

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