CN112834277B

CN112834277B - Fluid sampling and delivering closed interface assembly capable of being continuously used

Info

Publication number: CN112834277B
Application number: CN201911159507.0A
Authority: CN
Inventors: 朱远志; 张天策
Original assignee: North China University of Technology
Current assignee: North China University of Technology
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2023-08-29
Anticipated expiration: 2039-11-22
Also published as: CN112834277A

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

Fluid sampling and delivering closed interface assembly capable of being continuously used

Technical Field

Technical field of fluid interfaces

Background

In applications, treatments, experiments in a closed environment involving fluids, sampling, sample feeding, and feeding are often involved. This process requires no ingress and egress of impurities and therefore may require specific equipment, interfaces, etc. to perform.

Existing products are either complex in process and expensive, for example, require vacuum conditions to be produced; or the whole system can not be repeatedly and continuously used before reset, for example, the whole system needs to be added in advance or recovered in a later period; or impurities are introduced and discharged or samples are overflowed due to incomplete sealing; or has single function, can only sample, can only send sample or has to take and send the inter-phase circulation.

Therefore, an interface assembly is needed, simple parts and operation modes are designed by using simple mechanical principles, and the requirement that sampling and delivering of fluid can be repeated under a closed condition is met.

Disclosure of Invention

Technical problem that this patent solved: by utilizing a simple mechanical principle, a simple, quick and low-cost reusable fluid sampling and delivering closed interface assembly is designed.

The technical scheme of this patent: 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 interface assembly consists of three parts:

holding piece (1): comprises a containing shell, a containing annular switch, a containing control knob and a containing fixing frame. Wherein the containing piece annular switch is in threaded connection with the containing piece control knob.

Sample (2): the device comprises a sample shell, a sample spherical switch, a sample control knob and a sample concave piston.

Reset piece (3): comprises a reset piece shell and a reset piece convex piston.

When taking and delivering samples, the containing piece (1) is connected with the sample piece (2). The convex key is fixed with the clamping groove, and the containing piece annular switch is combined with the sample piece spherical switch. The interface can be in seamless joint connection, and a closed state is kept when the interface is used.

In order to avoid the influence of impurities or residual fluid on subsequent work, the sample piece (2) needs to be cleaned after each sample taking and delivering work is completed, and the reset piece (3) is used for resetting, so that the groove of the spherical switch of the sample piece is reset in a vacuum state.

Upon resetting, the sample (2) is engaged with the resetting piece (3). The convex key is adopted to fix with the clamping groove. The interface can be in seamless joint connection, and a closed state is kept when the interface is used.

In order to achieve the sealing effect, the opening of the annular switch of the containing piece, the opening of the spherical switch of the sample piece, the concave surface of the spherical switch of the sample piece, the cylinder of the concave piston of the sample piece and the cylinder of the convex piston of the resetting piece 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.

The beneficial effect of this patent: the complex fluid-tight sampling and delivering work is completed by a simple mechanical assembly, and the repeated and continuous operation can be realized. The sampling and delivering operation is simpler and faster. Meets the basic requirements of teaching and basic experiments. The corresponding working efficiency is improved, and the cost is reduced.

Drawings

Fig. 1 shows a container (1).

Wherein reference numeral 1 is a containing shell.

Wherein reference numeral 2 is a holding control knob.

Wherein the mark 3 is a containing annular switch.

Wherein the mark 4 is a holder.

Fig. 2 is a sample (2).

Wherein reference numeral 1 is a sample concave piston.

Wherein reference numeral 2 is a sample housing.

Wherein reference numeral 3 is a sample control knob.

Wherein reference numeral 4 is a sample spherical switch.

Fig. 3 shows the restoring element (3).

Wherein reference numeral 1 is a reset piece housing.

Wherein reference numeral 2 is a resetting piece convex piston.

Fig. 4 shows the butt joint of the sample (2) of the container (1).

The reset piece (3) of the sample piece (2) in fig. 5 is in butt joint.

Figure 6 is a schematic diagram of the features of the bit sample extraction and delivery process.

Figure 7 is a simplified schematic of a bit reset procedure.

Description of the embodiments

In order to make the technical problems, technical schemes and beneficial effects of the solution of the patent device more clear, the patent device is further described in detail by combining examples. This is for the purpose of illustrating the present patent device only and is not intended to limit the present patent device.

Example 1: component category and functional introduction

The interface assembly consists of three parts:

Reset piece (3): comprises a reset piece shell and a reset piece convex piston.

Example 2: sampling operation

1. And adjusting the gesture, adjusting the annular switch of the accommodating part to be closed, adjusting the spherical switch of the sample part to be opened, and pushing the concave piston of the sample part to the bottommost. (as in 1 of FIG. 6)

2. And the butt joint containing piece (1) is connected with the sample piece (2) and fixed. (as in FIG. 6, 2)

3. And adjusting the annular switch of the accommodating part to be opened. (as in 3 of FIG. 6)

4. And pulling up the concave piston of the sample piece, and sampling. (as in 4 of FIG. 6)

5. And adjusting the spherical switch of the sample piece to be closed. (as in 5 of FIG. 6)

6. And (5) turning off the annular switch of the accommodating part. (as in 6 of FIG. 6)

7. And separating the interfaces. (as in 7 of FIG. 6)

Example 3: sample feeding operation

1. And adjusting the gesture, namely adjusting the annular switch of the accommodating part to be closed, and adjusting the spherical switch of the sample part to be concave to be closed. (as in 7 of FIG. 6)

2. And the butt joint containing piece (1) is connected with the sample piece (2) and fixed. (as in 6 of FIG. 6)

3. And adjusting the annular switch of the accommodating part to be opened. (as in 5 of FIG. 6)

4. And adjusting the spherical switch of the sample to be opened. (as in 4 of FIG. 6)

5. And pressing down the concave piston of the sample piece, and delivering the sample. (as in 3 of FIG. 6)

6. And (5) turning off the annular switch of the accommodating part. (as in FIG. 6, 2)

7. And separating the interfaces. (as in 1 of FIG. 6)

Example 4: reset operation

1. And adjusting the posture, namely adjusting the spherical switch of the sample piece to be closed by the concave type, and pressing the convex type piston of the reset piece to the bottommost. (as in 1 of FIG. 7)

2. The butt joint sample piece (2) and the reset piece (3) are connected and fixed. (as in FIG. 7, 2)

3. And pulling up the convex piston of the reset piece to form a small vacuum environment. (as in 3 of FIG. 7)

4. And adjusting the spherical switch of the sample to be opened. (as in 4 of FIG. 7)

5. And adjusting the convex piston of the resetting piece or the concave piston of the sample piece to balance the pressure. (as in 5 of FIG. 7)

6. And separating the interfaces. (as in 6 of FIG. 7)

Claims

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.