Uniform mixing device for standard gas

Abstract

The utility model provides a uniform mixing device for standard gas. The uniform mixing device comprises a base and a uniform mixing assembly, and the uniform mixing assembly comprises a rotating shaft rotationally arranged on the base, at least two protective plates arranged on the rotating shaft, and a plurality of steel cylinder placing tables arranged between the adjacent protective plates. According to the uniform mixing device for the standard gas, the steel cylinder placing table is arranged between the two protective plates on the rotating shaft, so that a steel cylinder can be directly placed in the steel cylinder placing table conveniently, the steel cylinder is prevented from being in direct contact with a rotating transmission part, and abrasion caused by contact with the rotating transmission part is avoided.

Description

Technical Field

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

[0002] Homogeneity is an important indicator for evaluating the performance of standard gases. The properties of standard gases must be uniform, that is, their value must remain unchanged within the specified range. No matter which method is used to produce standard gases, they must be mixed. The mixing methods of standard gases include heat treatment method, bottle rolling method, special filling method, natural diffusion method and other mixing methods.

[0003] The utility model with patent application number CN202220673556.7 relates to a standard gas cylinder mixing device in the field of standard mixed gas technology. It controls the parallel and coinciding rotating wheels to control the rotation of the gas cylinder located between the two wheels, and further mixes the gas inside the gas cylinder during its rotation. After the mixing is completed, the motor is turned off and the gas cylinder can be taken out after the rotation of the gas cylinder stops, thereby facilitating the mixing of the standard gas cylinder.

[0004] However, the above-mentioned prior art has the defect of causing wear to the gas cylinder. Specifically, the gas cylinder is placed on an adjacent rotating wheel by lowering the gas cylinder, and the rotating wheel is controlled to rotate so that the rotating friction acts directly on the gas cylinder. During the rotation of the gas cylinder, the rotating wheel and the gas cylinder are in direct contact and a force is generated between the two, so the gas cylinder is easily worn or even damaged. Utility Model Content

[0005] The utility model provides a standard gas mixing device, which solves the problem of easy wear and tear in the standard gas mixing process in the prior art.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A standard gas mixing device comprises a base and a mixing component; the mixing component comprises a rotating shaft rotatably arranged on the base, at least two guard plates arranged on the rotating shaft, and a plurality of steel cylinder placement platforms arranged between adjacent guard plates.

[0008] Furthermore, the steel cylinder placement platform is an arc-shaped plate with placement slots.

[0009] Furthermore, a plurality of clamps are provided on at least one side of the cylinder placement platform.

[0010] Furthermore, the base is U-shaped, and specifically consists of a bottom plate and side plates installed on both sides of the bottom plate.

[0011] Furthermore, it also includes a driving assembly, which includes a motor arranged on one of the side panels and a transmission wheel arranged on the rotating shaft, and the output shaft of the motor and the transmission wheel are driven by a belt.

[0012] Beneficial effects of the technical solution provided by this application:

[0013] The standard gas mixing device arranges a cylinder placing table between two guard plates on the rotating shaft, so that the cylinder can be directly placed on the cylinder placing table, thereby avoiding direct contact between the cylinder and the rotating transmission parts, and avoiding wear caused by contact with the rotating transmission parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the standard gas mixing device of the utility model.

[0016] In the figure: 100 base, 110 rotating shaft, 120 guard plate, 130 cylinder placement table, 140 clamp, 150 driving assembly, 151 motor, 152 transmission wheel, 153 belt. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Reference Figure 1 A standard gas mixing device includes a base 100 and a mixing component; the mixing component includes a rotating shaft 110 rotatably arranged on the base 100, at least two guard plates 120 arranged on the rotating shaft 110, and a plurality of cylinder placement platforms 130 arranged between adjacent guard plates 120.

[0019] The base 100 is mainly used to provide a supporting foundation for the mixing component, and the base 100 is composed of a bottom plate and side plates installed on both sides of the bottom plate to form a U-shaped support structure. The mixing component can perform mixing work and obtain safety protection on the U-shaped base 100; by rotating the two ends of the rotating shaft 110 of the mixing component on the side plates respectively, the rotatable function of the rotating shaft 110 can provide continuous rotation requirements for the mixing process, and the end of the rotating shaft 110 has a bearing for providing a stable rotation balance; at least two guard plates 120 are provided on the rotating shaft 110, and the guard plates 120 can be circular, which can ensure that multiple cylinder placement platforms 130 are set on the guard plates 120. At the same time, the circular design of the guard plates 120 makes it cooperate with the U-shaped accommodation space provided for it by the base 100, ensuring that the multiple cylinder placement platforms 130 can obtain unobstructed rotation as much as possible.

[0020] In addition, there may be multiple guard plates 120, and a cylinder placement table 130 is disposed between adjacent guard plates 120, so that the standard gas mixing device can meet the standard gas mixing requirements of more cylinders.

[0021] The steel cylinder placement platform 130 is an arc-shaped plate with a placement notch. The steel cylinder placement platform 130 is set as a plate-shaped member with a placement notch, and the placement notch is the same length as the plate-shaped member, so that the entire steel cylinder can be quickly placed in the placement notch; in addition, the cross-section of the plate-shaped member is an arc-shaped plate, and the arc design is used to surround the steel cylinder so that the steel cylinder can be protected.

[0022] Secondly, a protective pad can be set in the placement slot and at the edge of the placement slot. The material of the protective pad can be selected as needed. It is mainly used to protect the cylinder from being damaged by collision when the cylinder is placed in the placement slot.

[0023] In addition, anti-collision pads (not marked in the figure) are respectively provided on both sides of the cylinder placement platform 130, that is, the adjacent sides of the two guard plates 120. The anti-collision pads have grooves inside, which can be used to adapt to the ends of the cylinders. The specific size of the grooves can be set according to the actual size of the cylinders.

[0024] A plurality of clamps 140 are provided on at least one side of the steel cylinder placement platform 130. The clamps 140 can be provided on one side or on both sides of the placement slot, and the clamps 140 are used to fix the steel cylinder in the placement slot. The types of the clamps 140 include but are not limited to pneumatic, electric and hydraulic clamps. After the clamps 140 are actuated, the steel cylinder in the placement slot can be clamped to be firmly fixed in the steel cylinder placement platform 130.

[0025] Furthermore, a driving assembly 150 is included. The driving assembly 150 includes a motor 151 arranged on one of the side panels and a transmission wheel 152 arranged on the rotating shaft 110. The output shaft of the motor 151 and the transmission wheel 152 are driven by a belt 153.

[0026] The main function of the driving component 150 is to provide rotational power for the mixing component. After the motor 151 is activated, it provides power to the transmission wheel 152 set on the rotating shaft 110 through the belt 153. When the transmission wheel 152 rotates synchronously with the belt 153, the rotating shaft 110 can rotate on the side plate, and then the rotating shaft 110 drives the side plate 120 and the cylinder placement table 130 to rotate synchronously. Under the fixed condition of the clamp 140, the cylinder in the cylinder placement table 130 can ensure stable and balanced rotation, so that the standard gas in the cylinder is fully mixed.

[0027] In addition, in order to effectively control the rotation speed of the drive assembly 150 to the rotating shaft 110, a transmission (not marked in the figure) is provided on the motor 151, and the output rotation speed of the motor 151 is controlled by the transmission to meet the requirements of different rotation speeds. In order to increase the transmission stability of the drive assembly 150 to the rotating shaft 110, the belt 153 is set as a toothed belt, and the transmission wheel 152 is a toothed transmission wheel. The end of the output shaft of the motor 151 is provided with a toothed circumference or a toothed wheel, and the three mesh with each other to avoid the occurrence of friction gap in the transmission, which leads to poor transmission stability of the rotating shaft 110.

[0028] It should be noted that the driving assembly 150 can also be gear-rotated, specifically, a driving gear is provided on the motor 151, and a driven gear is provided on the rotating shaft 110, and the two gears are meshed with each other to achieve power transmission.

[0029] Compared with the transmission drum-type mixing device, the mixing component has a more stable mixing effect. The main reason is that the existing drum-type mixing device causes the steel cylinder to roll and move inside through the rotation of the drum. Although this rolling and movement helps the gas molecules to be fully mixed and diffused inside the steel cylinder. However, the steel cylinders collide violently between the drums, which can easily cause damage to the steel cylinders. According to experimental measurements, the mixing component in this scheme can fully mix the gas molecules inside the steel cylinder through a combination of forward and reverse rotation within a specified time.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A standard gas mixing device, comprising a base (100) and a mixing component; characterized in that: The mixing assembly comprises a rotating shaft (110) rotatably arranged on a base (100), at least two guard plates (120) arranged on the rotating shaft (110), and a plurality of cylinder placement tables (130) arranged between adjacent guard plates (120).

2. The standard gas mixing device according to claim 1, characterized in that: The steel cylinder placement platform (130) is an arc-shaped plate with placement notches.

3. The standard gas mixing device according to claim 1, characterized in that: A plurality of clamps (140) are provided on at least one side of the steel cylinder placement platform (130).

4. The standard gas mixing device according to claim 1, characterized in that: The base (100) is U-shaped, and specifically consists of a bottom plate and side plates installed on both sides of the bottom plate.

5. The standard gas mixing device according to claim 4, characterized in that: The invention also comprises a driving assembly (150), wherein the driving assembly (150) comprises a motor (151) arranged on one of the side panels and a transmission wheel (152) arranged on the rotating shaft (110), and a belt (153) is used to transmit power between the output shaft of the motor (151) and the transmission wheel (152).

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