CN112834277B - A continuously usable closed interface assembly for fluid sampling and delivery - Google Patents

Abstract

The invention belongs to the technical field of fluid interfaces. By utilizing a simple mechanical principle, a simple, quick and low-cost reusable fluid airtight sampling and delivering interface assembly is designed. Comprises a containing piece (1), a sample piece (2) and a resetting piece (3). The annular switch and the spherical switch are combined, so that the interfaces are connected seamlessly. The actions of sealing, sampling, sample feeding and the like are completed by utilizing different combination forms of the device. Reset with a reset assembly. The device completes complex fluid closed sample taking and delivering work by a simple mechanical assembly, and can repeatedly and continuously operate; the sample taking and delivering operation is simpler and faster; the basic requirements of teaching and basic experiments are met; the corresponding working efficiency is improved, and the cost is reduced.

Description

A continuously usable closed interface assembly for fluid sampling and delivery

technical field

Technical field of fluid interface

Background technique

During the application, processing, and experimentation of fluid-related closed environments, processes such as sampling, sample delivery, and feeding are often involved. This process requires no impurities to enter and exit, so specific devices, interfaces, etc. will be required to carry out.

Existing products are either complex and expensive, such as the need to create vacuum conditions; or the entire system cannot be used repeatedly and continuously before reset, such as pre-adding or post-recovery; or cannot be completely sealed, resulting in impurities or samples Overflow; or single function, can only take samples, only send samples, or must take and send phase cycles.

Therefore, there is a need for an interface assembly that uses simple mechanical principles to design simple parts and operation methods, and meets the requirement of repeatedly taking and sending fluid samples under airtight conditions.

Contents of the invention

The technical problem to be solved by this patent is to design a simple, quick and cheap reusable sealed interface assembly for fluid sampling and delivery using simple mechanical principles.

The technical solution of this patent: use the combination of the ring switch and the spherical switch to make the interface seamlessly connected. Use its different combination forms to complete actions such as sealing, sampling, and sample delivery. Use the reset component to reset.

The interface component consists of three parts:

Container (1): including container shell, container ring switch, container control knob, container fixing frame. Wherein the ring switch of the container is threadedly connected with the control knob of the container.

Sample (2): including the sample housing, the sample spherical switch, the sample control knob, and the sample concave piston.

Resetting part (3): including the reset part housing and the convex piston of the reset part.

When taking and sending samples, the container (1) is joined with the sample (2). It is fixed by a convex key and a card slot, and the ring switch of the container is combined with the spherical switch of the sample. The interface can be seamlessly docked and remains airtight when in use.

In order to avoid the impact of impurities or residual fluid on the follow-up work, the sample (2) needs to be cleaned after each sampling and delivery work, and the reset part (3) is used to perform the reset operation, so that the groove of the sample spherical switch can be The vacuum state is reset.

During resetting, the sample (2) engages with the resetting part (3). It is fixed with a convex key and a card slot. The interface can be seamlessly docked and remains airtight when in use.

In order to achieve the airtight effect, the opening of the ring switch of the container, the opening of the spherical switch of the sample, the concave surface of the spherical switch of the sample, the cylinder of the concave piston of the sample, and the cylinder of the convex piston of the reset piece have the same radius. The outer surface of the ring switch of the containing part, the concave surface of the spherical switch of the sample part, the concave surface of the concave piston of the sample part, and the convex surface of the convex piston of the reset part have the same radian.

The beneficial effect of the patent is that the complex fluid-tight sampling and delivery work can be completed with simple mechanical components, and the operation can be repeated and continuous. Make this kind of sampling operation easier and faster. Meet the basic needs of teaching and basic experiments. Improve the corresponding work efficiency and reduce the cost.

Description of drawings

Fig. 1 is Sheng piece (1).

Among them, mark 1 is the case of the container.

The mark 2 is the control knob of the container.

Wherein the mark 3 is the ring switch of the container.

Wherein, mark 4 is the fixing frame for the container.

Figure 2 is the sample (2).

The mark 1 is the sample concave piston.

The mark 2 is the sample shell.

The mark 3 is the sample control knob.

Among them, mark 4 is the sample spherical switch.

Fig. 3 is the reset part (3).

The mark 1 is the housing of the reset member.

Wherein mark 2 is the convex piston of reset member.

Fig. 4 is the docking of the container (1) and the sample (2).

Fig. 5 The docking of the sample part (2) and the reset part (3).

Fig. 6 is a schematic diagram of the characteristics of the bit sampling process.

Figure 7 is a simplified diagram of the characteristics of the bit reset process.

Implementation

In order to make the technical problems, technical solutions and beneficial effects solved by the patented device clearer, the patented device will be further described in detail in combination with examples. This is only used to explain the patented device, not to limit the patented device.

Example 1: Introduction to component types and functions

The interface component consists of three parts:

Container (1): including container shell, container ring switch, container control knob, container fixing frame. Wherein the ring switch of the container is threadedly connected with the control knob of the container.

Sample (2): including the sample housing, the sample spherical switch, the sample control knob, and the sample concave piston.

Resetting part (3): including the reset part housing and the convex piston of the reset part.

When taking and sending samples, the container (1) is joined with the sample (2). It is fixed by a convex key and a card slot, and the ring switch of the container is combined with the spherical switch of the sample. The interface can be seamlessly docked and remains airtight when in use.

In order to avoid the impact of impurities or residual fluid on the follow-up work, the sample (2) needs to be cleaned after each sampling and delivery work, and the reset part (3) is used to perform the reset operation, so that the groove of the sample spherical switch can be The vacuum state is reset.

During resetting, the sample (2) engages with the resetting part (3). It is fixed with a convex key and a card slot. The interface can be seamlessly docked and remains airtight when in use.

In order to achieve the airtight effect, the opening of the ring switch of the container, the opening of the spherical switch of the sample, the concave surface of the spherical switch of the sample, the cylinder of the concave piston of the sample, and the cylinder of the convex piston of the reset piece have the same radius. The outer surface of the ring switch of the containing part, the concave surface of the spherical switch of the sample part, the concave surface of the concave piston of the sample part, and the convex surface of the convex piston of the reset part have the same radian.

Example 2: Sampling Operation

1. Adjust the posture, turn the ring switch of the container to off, turn the spherical switch of the sample to on, and push the concave piston of the sample to the bottom. (1 in Figure 6)

2. Connect and fix the interface between the container (1) and the sample (2). (2 in Figure 6)

3. Turn the ring switch of the container to open. (3 in Figure 6)

4. Pull up the concave piston of the sample and take a sample. (4 in Figure 6)

5. Adjust the sample ball switch to the concave type to close. (5 in Figure 6)

6. Turn the ring switch of the container to off. (6 in Figure 6)

7. Separate interface. (7 in Figure 6)

Example 3: Sample delivery operation

1. Adjust the posture, turn the ring switch of the container to off, and turn the spherical switch of the sample to the concave shape to close. (7 in Figure 6)

2. Connect and fix the interface between the container (1) and the sample (2). (6 in Figure 6)

3. Turn the ring switch of the container to ON. (5 in Figure 6)

4. Turn the sample ball switch to ON. (4 in Figure 6)

5. Press the concave piston of the sample to send the sample. (3 in Figure 6)

6. Turn the ring switch of the container to off. (2 in Figure 6)

7. Separate interface. (1 in Figure 6)

Example 4: Reset operation

1. Attitude adjustment, adjust the spherical switch of the sample to the concave type to close, and press the convex piston of the reset part to the bottom. (1 in Figure 7)

2. Connect and fix the sample (2) and reset (3) interface. (2 in Figure 7)

3. Pull up the convex piston of the reset part to form a small vacuum environment. (3 in Figure 7)

4. Turn the sample ball switch to ON. (4 in Figure 7)

5. Adjust the convex piston of the reset part or the concave piston of the sample to balance the pressure. (5 in Figure 7)

6. Separate interface. (6 in Figure 7)

Claims (2)

1. A fluid sampling airtight interface subassembly that can use in succession, its characterized in that: comprises a containing piece (1), a sample piece (2) and a resetting piece (3);

the containing piece (1) is used for containing fluid and comprises a containing piece shell, a containing piece annular switch, a containing piece control knob and a containing piece fixing frame; the holding piece annular switch is arranged at the bottom of the holding piece shell through the holding piece fixing frame, and the holding piece annular switch is connected with a holding piece control knob on the holding piece shell through threads; the convex key and the clamping groove can be connected with the sample piece (2);

the sample (2) is used for extracting fluid and comprises a sample shell, a sample spherical switch, a sample control knob and a sample concave piston; the sample piece concave piston is movably arranged in the sample piece shell up and down, and the sample piece spherical switch is rotatably arranged in the sample piece shell and is connected with the sample piece control knob; the spherical switch of the sample piece regulates the opening and closing of the sample piece (2) and the containing piece (1);

the resetting piece (3) comprises a resetting piece shell and a resetting piece convex piston; the convex piston of the resetting piece is vertically movably arranged in the resetting piece shell; the resetting piece (3) is applied to resetting, connection with the sample piece (2) is realized through the convex key and the clamping groove, and the convex piston of the resetting piece is pulled up during working, so that the sample piece (2) and the resetting piece (3) form a small vacuum environment, and the internal pressure of the sample piece is balanced through adjusting the spherical switch of the sample piece;

the sample holding piece interface is in seamless butt joint with the sample piece interface and the sample piece interface is in seamless butt joint with the reset piece interface; when taking and delivering samples, the containing piece (1) is connected with the sample piece (2); when in use, the sealing state is kept;

cleaning the sample piece (2) after each sample taking and delivering operation is finished, and resetting the sample piece by using a resetting piece (3) to reset the groove of the spherical switch of the sample piece in a vacuum state;

when in reset, the sample piece (2) is jointed with the reset piece (3); the sealing state is kept when the sealing device is used.

2. A continuously operable fluid sample presentation containment interface assembly as claimed in claim 1 wherein: the opening of the containing annular switch, the opening of the sample spherical switch, the concave surface of the sample spherical switch, the cylinder of the sample concave piston and the cylinder of the reset piece convex piston have the same radius; the outer surface of the containing annular switch, the concave surface of the sample spherical switch, the concave surface of the sample concave piston and the convex surface of the reset convex piston have the same radian.