CN220289516U - Tee bend capillary column connects and draws mechanism - Google Patents

Abstract

The utility model provides a three-way capillary column connecting and guiding mechanism which comprises a column body, wherein an installation head is arranged on the outer side of the column body, a guide piece is arranged on the outer side of the installation head, a limiting mechanism is arranged on the outer side of the installation head, a sealing ring is clamped on the inner wall of the installation head, a sealing ring is arranged on the inner wall of the guide piece, the limiting mechanism comprises a limiting block fixed on the outer side of the installation head, an arc-shaped clamping block is slidingly connected on the inner wall of the limiting block, a first spring is fixedly connected on one side of the arc-shaped clamping block, a limiting groove is formed in the inner wall of the guide piece, and an arc-shaped clamping groove is formed in the inner wall of the limiting groove. The three-way capillary column connecting and guiding mechanism solves the problems that the existing three-way capillary column connecting and guiding mechanisms cannot fix a capillary column and a guide piece through nuts quickly and conveniently, and the existing three-way capillary column connecting and guiding mechanisms can be screwed down only by means of tools such as a spanner, so that the installation efficiency of the capillary column and the guide piece is reduced.

Description

Tee bend capillary column connects and draws mechanism

Technical Field

The utility model relates to the field of gas chromatographs, in particular to a three-way capillary column connecting and guiding mechanism.

Background

The gas chromatograph is a chromatographic analysis instrument using gas as mobile phase, and its principle is mainly to utilize the difference of boiling point, polarity and adsorption property of substances to implement separation of mixture, after the sample to be analyzed is gasified in gasification chamber, the inert gas is introduced into chromatographic column, the column contains liquid or solid stationary phase, every component in the sample tends to form distribution or adsorption equilibrium between mobile phase and stationary phase, along with the flow of carrier gas, the sample component can be repeatedly distributed or adsorbed and desorbed in motion, the component with large concentration distributed in carrier gas can be flowed out of chromatographic column, and after the component with large concentration is distributed in fixed phase, the component can be flowed out of chromatographic column, and fed into detector to be measured, and the capillary column is an indispensable component in gas chromatograph.

According to the Chinese patent number, the method comprises the following steps: CN209570560U is a gas chromatograph capillary column quick replacement device, its beneficial effect is: the sliding bolt is provided with a second slide way, a bolt, a rotating block, a first groove, a second groove and a bolt hole, under the action of the second slide way, the bolt is slid, so that the bolt drives the rotating block to move in the first groove, the rotating block seals an opening on a graphite pad, a capillary column is limited, the bolt is pressed again, the upper end of the bolt enters the second groove, and the lower end of the bolt enters the bolt hole, so that the rotating block is fixed.

The device is through passing the through-hole in the guide with the capillary column end, screw up the nut, make the nut fix on the guide, it is not fast convenient to fix the mode through the nut, and still need can screw up it with the help of instruments such as spanner, and then reduced the efficiency that capillary column and guide were installed.

Therefore, it is necessary to provide a new three-way capillary column guiding mechanism to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the three-way capillary column guiding mechanism which is convenient for fast and fixedly connecting the capillary column with the guiding piece.

The utility model provides a three-way capillary column connecting and guiding mechanism which comprises a column body, wherein an installation head is arranged on the outer side of the column body, a guide piece is arranged on the outer side of the installation head, a limiting mechanism is arranged on the outer side of the installation head, a sealing ring is clamped on the inner wall of the installation head, and a sealing ring is arranged on the inner wall of the guide piece.

As the three-way capillary column guiding mechanism provided by the utility model, preferably, the limiting mechanism comprises a limiting block fixed on the outer side of the mounting head, the inner wall of the limiting block is slidably connected with an arc-shaped clamping block, one side of the arc-shaped clamping block is fixedly connected with a first spring, the inner wall of the guide piece is provided with a limiting groove, and the inner wall of the limiting groove is provided with an arc-shaped clamping groove.

As the three-way capillary column connecting and guiding mechanism provided by the utility model, preferably, the inner wall of the mounting head is connected with a connecting rod in a sliding manner, one end of the connecting rod is fixedly connected with a fixed block, the outer side of the connecting rod is provided with a second spring, and the other end of the connecting rod is fixedly connected with an arc clamping plate.

As the three-way capillary column connecting and guiding mechanism provided by the utility model, the number of the connecting rods is preferably two.

Compared with the prior art, the utility model has the beneficial effects that:

this three way capillary column connects and draws mechanism, through setting up stop gear, can be fast be connected cylinder and guide, easy operation is convenient, and need not to use any instrument, has solved current some three way capillary column and has connect draw mechanism and pass through the nut with the fixed mode of capillary column and guide not fast convenient, and still need screw up it with the help of instruments such as spanner, and then reduced the problem of capillary column and guide installation effectiveness.

Drawings

FIG. 1 is a schematic diagram of a three-way capillary column connection mechanism according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic diagram of a limiting mechanism according to the present utility model;

FIG. 3 is a schematic diagram of an arc-shaped latch and a first spring according to the present utility model;

fig. 4 is a schematic structural view of the connecting rod and the second spring in the present utility model.

Reference numerals in the drawings: 1. a column; 2. a mounting head; 3. a guide member; 4. a limiting mechanism; 41. a limiting block; 42. an arc-shaped clamping block; 43. a first spring; 44. a limit groove; 45. an arc-shaped clamping groove; 5. a seal ring; 6. a seal ring; 7. a connecting rod; 8. a fixed block; 9. a second spring; 10. an arc-shaped clamping plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. The connection relationships shown in the drawings are for convenience of clarity of description only and are not limiting on the manner of connection.

It is noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component, or intervening components may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It should also be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless otherwise specifically defined and limited; either mechanically or electrically, or by communication between two components. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4 in combination. The utility model provides a tee bend capillary column connects and draws mechanism, includes cylinder 1, and the outside of cylinder 1 is provided with installation head 2, and the outside of installation head 2 is provided with guide 3, and the outside of installation head 2 is provided with stop gear 4, and the inner wall joint of installation head 2 has sealing ring 5, and the inner wall of guide 3 is provided with sealing washer 6.

In a specific implementation process, as shown in fig. 1-4, the limiting mechanism 4 includes a limiting block 41 fixed on the outer side of the mounting head 2, an arc-shaped clamping block 42 is slidably connected to an inner wall of the limiting block 41, a first spring 43 is fixedly connected to one side of the arc-shaped clamping block 42, a limiting groove 44 is formed in an inner wall of the guide member 3, and an arc-shaped clamping groove 45 is formed in an inner wall of the limiting groove 44.

The inner wall sliding connection of installation head 2 has connecting rod 7, and the one end fixedly connected with fixed block 8 of connecting rod 7, and the outside of connecting rod 7 is provided with second spring 9, and the other end fixedly connected with arc cardboard 10 of connecting rod 7.

The number of the connection bars 7 is set to two.

It should be noted that: through setting up stop gear 4, can be fast with cylinder 1 with guide 3 be connected, easy operation is convenient, and need not to use any instrument, pulling fixed block 8 makes connecting rod 7 drive arc cardboard 10 and remove when using, this moment second spring 9 is tensile state, then pass sealing ring 5 and installation head 2 with the one end of cylinder 1, loosen fixed block 8 at this moment and can make arc cardboard 10 automatic re-setting through the resilience force of second spring 9, thereby carry out the centre gripping fixed to cylinder 1, then remove installation head 2 and make stopper 41 card go into spacing groove 44, when arc fixture block 42 contacted spacing groove 44, arc fixture block 42 receives the extrusion and can retract to in the stopper 41, at this moment first spring 43 is compressed state, then continue to remove installation head 2 when arc fixture block 42 and arc draw-in groove 45 are in the same position, can make arc fixture block 42 automatic re-setting and card go into arc draw-in groove 45 through the resilience force of first spring 43, thereby can reach the purpose of fast with cylinder 1 and guide 3 connection, the simple operation, then remove sealing ring 5 makes it card into installation head 2, make 1 and installation head 2 junction reach sealing effect through 6 and guide 3.

The utility model provides a three-way capillary column connecting and guiding mechanism, which has the following working principle:

when in use, the cylinder 1 is firstly arranged in the mounting head 2 and fixed, then the mounting head 2 is moved to enable the limiting block 41 to be clamped into the limiting groove 44, when the arc-shaped clamping block 42 contacts the limiting groove 44, the arc-shaped clamping block 42 is extruded to retract into the limiting block 41, so that the first spring 43 is compressed, then the mounting head 2 is continuously moved, when the arc-shaped clamping block 42 and the arc-shaped clamping groove 45 are positioned at the same position, the arc-shaped clamping block 42 can be automatically reset and clamped into the arc-shaped clamping groove 45 through the resilience force of the first spring 43, thereby achieving the aim of connecting the cylinder 1 with the guide piece 3 quickly, avoiding any tool in the whole process, and being convenient to operate.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (4)

1. The utility model provides a tee bend capillary column connects and draws mechanism, its characterized in that, including cylinder (1), the outside of cylinder (1) is provided with installation head (2), the outside of installation head (2) is provided with guide (3), the outside of installation head (2) is provided with stop gear (4), the inner wall joint of installation head (2) has sealing ring (5), the inner wall of guide (3) is provided with sealing washer (6).

2. The three-way capillary column guiding mechanism according to claim 1, wherein the limiting mechanism (4) comprises a limiting block (41) fixed on the outer side of the mounting head (2), an arc-shaped clamping block (42) is slidably connected to the inner wall of the limiting block (41), a first spring (43) is fixedly connected to one side of the arc-shaped clamping block (42), a limiting groove (44) is formed in the inner wall of the guide piece (3), and an arc-shaped clamping groove (45) is formed in the inner wall of the limiting groove (44).

3. The three-way capillary column guiding mechanism according to claim 2, wherein the inner wall of the mounting head (2) is slidably connected with a connecting rod (7), one end of the connecting rod (7) is fixedly connected with a fixing block (8), a second spring (9) is arranged on the outer side of the connecting rod (7), and the other end of the connecting rod (7) is fixedly connected with an arc clamping plate (10).

4. A three-way capillary column coupling mechanism according to claim 3, characterized in that the number of connecting rods (7) is two.