Gas mixing device for gas distribution instrument

Abstract

The utility model discloses a gas mixing device for a gas distribution instrument, which comprises a contact box, two functional pipes and a mixing pipe are arranged on the contact box, a rotating shaft positioned outside the contact box is arranged on the contact box and the mixing pipe together, fan blades and a stirring rod are arranged on the rotating shaft, a driving motor is arranged outside the contact box, and the driving motor is connected with the mixing pipe. The driving motor is connected with the rotating shaft through a rotating mechanism, rotating chambers and moving chambers are arranged in the two functional pipes, and reciprocating lead screws extending to the outer portions of the functional pipes are rotationally arranged in the rotating chambers. According to the gas mixing device, all parts of the whole gas mixing device are compact and reasonable in layout, the contact box, the function pipe, the mixing pipe, the rotating shaft and other parts are matched with one another through ingenious design, a complete and efficient gas mixing system is formed, the limited space is fully utilized, and meanwhile it is guaranteed that the functions of all the parts are cooperatively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas mixing, in particular to a gas mixing device for a gas distribution instrument. Background Art

[0002] Gas mixing devices in gas distribution equipment play a vital and indispensable role in many fields, including modern industry, environmental science, and scientific research. Their core function is to mix multiple gases of varying properties and origin, homogenizing them to create a gas mixture that meets specific requirements. This gas mixture is extremely valuable in a variety of applications.

[0003] However, current gas distribution instrument mixing devices have several limitations. The intake and mixing components are essentially designed to be independently powered. This prevents effective linkage between the two key components. Since each power unit requires its own independent control system, transmission components, and energy supply system, this not only increases the overall cost of the device but also makes the equipment structure complex and bulky. Excessive power units and their ancillary equipment take up a significant amount of space, increasing the floor space. This problem is particularly prominent in space-constrained laboratories or production environments, causing inconvenience and additional costs for users. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a gas mixing device for a gas distribution instrument.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A gas mixing device for a gas distribution instrument comprises a contact box, on which two functional tubes and a mixing tube are installed, and a rotating shaft outside the contact box is installed on the contact box and the mixing tube, and a fan blade and a stirring rod are installed on the rotating shaft, and a driving motor is provided outside the contact box, and the driving motor is connected to the rotating shaft through a rotating mechanism, and a rotating chamber and an active chamber are provided inside the two functional tubes, and a reciprocating screw extending to the outside of the functional tube is provided in the rotating chamber, and the reciprocating screw is connected to the rotating shaft through a transmission mechanism, and a piston plate is provided in the active chamber for sealing and sliding, and the piston plate is connected to the reciprocating screw through a connecting mechanism, and the active chamber is connected to the contact box through a connecting port, and an air inlet pipe connected to the active chamber is installed on the functional tube.

[0007] Preferably, the rotating mechanism comprises a rotating gear mounted on an output shaft of the driving motor, and the rotating shaft is provided with a driving gear meshing with the rotating gear.

[0008] Preferably, the transmission mechanism includes a transmission gear mounted on the rotating shaft, and the reciprocating screw is mounted with a linkage gear meshing with the transmission gear.

[0009] Preferably, the connection mechanism comprises a connection frame threadedly sleeved on the reciprocating screw, and the end of the connection frame is fixedly connected to the piston plate.

[0010] Preferably, an air inlet valve is provided in the air inlet pipe, and an air outlet valve is provided in the connecting port, and both the air inlet valve and the air outlet valve are one-way valves.

[0011] Preferably, the inner walls on both sides of the contact box are arranged at an angle, and the inner walls on both sides of the contact box are arranged at an angle toward the mixing tube.

[0012] Beneficial effects of the utility model:

[0013] 1. The layout of the various components of the entire mixing device is compact and reasonable. For example, the contact box, functional tube, mixing tube, rotating shaft and other components cooperate with each other through ingenious design to form a complete and efficient mixing system, which makes full use of the limited space and ensures the coordinated realization of the functions of each part.

[0014] 2. The transmission mechanism utilizes the meshing of transmission gears and linkage gears to transmit the power of the rotating shaft to the reciprocating screw, causing the piston plate to slide sealed within the movable chamber. The inlet valve in the intake pipe and the outlet valve in the connection port are both one-way valves. This design ensures that gas can only flow in the specified direction, achieving precise and stable gas delivery, effectively preventing problems such as gas backflow, and ensuring the quality and stability of the mixed gas.

[0015] 3. The fan blades and stirring rods mounted on the rotating shaft rotate with the shaft, stirring the gas in the contact box and mixing tube. Simultaneously, the gas enters the mixing tube from the functional tube through the contact box. The inner walls of the contact box are tilted toward the mixing tube, ensuring that the gas entering the contact box can smoothly enter the mixing tube. The synergistic effect of these multiple designs greatly improves the efficiency and effect of gas mixing, enabling more uniform gas mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a gas mixing device for a gas distribution instrument proposed by the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the internal components of the contact box;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure at A;

[0019] Figure 4 for Figure 1 Schematic diagram of the vertical cross-section structure.

[0020] In the figure: 1 contact box, 2 functional pipe, 3 intake pipe, 4 mixing pipe, 5 drive motor, 6 rotating gear, 7 rotating shaft, 8 driving gear, 9 transmission gear, 10 linkage gear, 11 rotating chamber, 12 movable chamber, 13 piston plate, 14 reciprocating screw, 15 connecting frame, 16 fan blade, 17 stirring rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-4

[0023] A gas mixing device for a gas distribution instrument includes a contact box 1, on which two functional tubes 2 and a mixing tube 4 are installed. The contact box 1 and the mixing tube 4 are jointly equipped with a rotating shaft 7 outside the contact box 1, and the rotating shaft 7 is equipped with fan blades 16 and a stirring rod 17. A driving motor 5 is provided outside the contact box 1, and the driving motor 5 is connected to the rotating shaft 7 through a rotating mechanism. A rotating chamber 11 and an active chamber 12 are provided inside the two functional tubes 2. A reciprocating screw 14 extending to the outside of the functional tube 2 is provided in the rotating chamber 11, and the reciprocating screw 14 is connected to the rotating shaft 7 through a transmission mechanism. A piston plate 13 is provided in a sealing and sliding manner in the active chamber 12, and the piston plate 13 is connected to the reciprocating screw 14 through a connecting mechanism. The active chamber 12 is connected to the contact box 1 through a connecting port, and an air inlet pipe 3 connected to the active chamber 12 is installed on the functional tube 2.

[0024] The rotating mechanism includes a rotating gear 6 mounted on the output shaft of the driving motor 5, and a driving gear 8 meshing with the rotating gear 6 is provided on the rotating shaft 7. When the driving motor 5 rotates, the rotating gear 6 is driven to rotate, and when the rotating gear 6 rotates, the driving gear 8 is driven to rotate. This arrangement facilitates the removal of the driving motor 5 from the entire device, wherein the driving motor 5 can be mounted on the contact box 1 by means of a bolt assembly.

[0025] The transmission mechanism includes a transmission gear 9 mounted on the rotating shaft 7, and a linkage gear 10 meshing with the transmission gear 9 is mounted on the reciprocating screw 14. When the rotating shaft 7 rotates, the transmission gear 9 rotates, and when the transmission gear 9 rotates, the linkage gear 10 rotates, and when the linkage gear 10 rotates, the reciprocating screw 14 rotates.

[0026] Among them, the reciprocating screw 14 is provided with threads only on the outer wall of the portion located in the rotating chamber 11 .

[0027] The connecting mechanism includes a connecting frame 15 threadedly mounted on the reciprocating screw 14, with the end of the connecting frame 15 fixedly connected to the piston plate 13. As shown in the figure, the connecting frame 15 consists of a circular disk and two long rods. The long rods slide through the inner wall of the rotating chamber 11 and extend into the movable chamber 12. Therefore, this connecting frame 15 has a limited position and will not rotate with the reciprocating screw 14.

[0028] An air inlet valve is provided in the air inlet pipe 3, and an air outlet valve is provided in the connecting port. Both the air inlet valve and the air outlet valve are one-way valves.

[0029] The inner walls on both sides of the contact box 1 are tilted and arranged toward the mixing tube 4. This arrangement ensures that the gas entering the contact box 1 can smoothly enter the mixing tube 4 for mixing operation.

[0030] When the present invention is in use, the drive motor 5 begins operating. The rotating gear 6 on the output shaft of the drive motor 5 rotates, driving the meshing driving gear 8 on the rotating shaft 7, thereby causing the rotating shaft 7 to begin rotating. The rotation of the rotating shaft 7 drives the transmission gear 9 on it. The transmission gear 9 meshes with the linkage gear 10 on the reciprocating screw 14, which in turn drives the reciprocating screw 14 to rotate. The rotation of the reciprocating screw 14 causes the connecting bracket 15 threadedly mounted thereon to move along the reciprocating screw 14. The connecting bracket 15 drives the piston plate 13 to slide in a sealed manner within the movable chamber 12. At this time, gas can enter the movable chamber 12 through the inlet pipe 3. As the piston plate 13 moves, the gas enters the contact box 1 from the movable chamber 12 through the connection port.

[0031] At the same time, the fan blades 16 and the stirring rod 17 installed on the rotating shaft 7 work in the contact box 1 and the mixing tube 4 as the rotating shaft 7 rotates, stirring the gas entering the contact box 1 to achieve a gas mixing function.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas mixing device for a gas distribution instrument, comprising a contact box (1), characterized in that: The contact box (1) is provided with two functional tubes (2) and a mixing tube (4). The contact box (1) and the mixing tube (4) are provided with a rotating shaft (7) outside the contact box (1). The rotating shaft (7) is provided with a fan blade (16) and a stirring rod (17). A driving motor (5) is provided outside the contact box (1). The driving motor (5) is connected to the rotating shaft (7) through a rotating mechanism. The two functional tubes (2) are provided with a rotating chamber (11) and an activity chamber ( 12), a reciprocating screw (14) extending to the outside of the functional tube (2) is provided in the rotating chamber (11), the reciprocating screw (14) is connected to the rotating shaft (7) through a transmission mechanism, a piston plate (13) is provided in the movable chamber (12) for sealing and sliding, the piston plate (13) is connected to the reciprocating screw (14) through a connecting mechanism, the movable chamber (12) is connected to the contact box (1) through a connecting port, and an air inlet pipe (3) connected to the movable chamber (12) is installed on the functional tube (2).

2. A gas mixing device for a gas distribution instrument according to claim 1, characterized in that: The rotating mechanism comprises a rotating gear (6) mounted on the output shaft of a driving motor (5), and a driving gear (8) meshing with the rotating gear (6) is provided on the rotating shaft (7).

3. A gas mixing device for a gas distribution instrument according to claim 2, characterized in that: The transmission mechanism comprises a transmission gear (9) mounted on a rotating shaft (7), and a linkage gear (10) meshing with the transmission gear (9) is mounted on the reciprocating screw (14).

4. A gas mixing device for a gas distribution instrument according to claim 3, characterized in that: The connection mechanism comprises a connection frame (15) threadedly sleeved on a reciprocating screw (14), and an end portion of the connection frame (15) is fixedly connected to a piston plate (13).

5. A gas mixing device for a gas distribution instrument according to claim 4, characterized in that: An air inlet valve is provided in the air inlet pipe (3), and an air outlet valve is provided in the connecting port. Both the air inlet valve and the air outlet valve are one-way valves.

6. A gas mixing device for a gas distribution instrument according to claim 5, characterized in that: The inner walls on both sides of the contact box (1) are arranged obliquely, and the inner walls on both sides of the contact box (1) are arranged obliquely toward the mixing tube (4).

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