JPH04110958U - Optical cell with connector - Google Patents

Abstract

(57) [Summary] [Purpose] It can be easily and reliably joined to a Teflon tube without damaging the cell, and it has a small joining gap and can sufficiently withstand hydraulic pressure. [Structure] The female screw part 1 is threaded on the inner diameter and screws into the outer periphery 7 of the cell joint part 6, the Teflon tube 4 is inserted, and the bead part 2 having tapered parts 3 and 3' toward both ends is inserted into the cell joint part. The outer periphery 7 of 6 is threaded to engage with the inner periphery of the female threaded portion 1, and the internal shape of the cell joint 6 is such that the Teflon tube tip 5 and bead 2 are inscribed in the optical cell. Optical cell with connector formed by combining with.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an optical flow cell, and more specifically, the present invention relates to an optical flow cell. This invention relates to a cell with a connector that is provided to facilitate connection with a tube.

0002

[Conventional technology]

Traditionally, optical flow cells have been connected to equipment piping; Teflon tubes are often used for their strength, chemical resistance, etc.

0003 As a method of joining this Teflon tube and optical flow cell, the Teflon tube A threaded nipple with a disc-shaped tip is used.

0004 The thread nipple is a Teflon tip inserted into the male screw 21, as shown in Figure 3. The tip of the tube 22 is made into a disk shape 23 by hot pressure processing, and the male screw 21 is inserted into the cell opening. The disc-shaped tip 2 is screwed onto a female metal screw 24 fixed to the joint of the 3 is closely joined to the cell 25.

[0005]

[Problem that the idea aims to solve]

However, thread nipples can be damaged when securing metal female screws to cells. Also, when processing the tip of a Teflon tube into a disk shape, the inner diameter is flat. In addition, because the cell pore and tube inner diameter are different, there is a gap. This causes the liquid to not flow smoothly. Furthermore, as the fluid pressure increases, fluid leaks from the joint. It has the disadvantage of leaking.

[0006] Therefore, the gap between the Teflon tube and the Teflon tube can be minimized without damaging the cell. Cells and Teflon are small, can be easily and reliably joined, and can withstand liquid pressure. There was a desire to develop a method for joining tubes.

[0007]

[Means to solve the problem]

Therefore, the inventor of the present invention aims to provide an optical cell that solves these problems. As a result of intensive research with the aim of The above problems can be solved by creating a cell with a connector and a structure that allows the controller to be installed. This idea was completed based on this knowledge.

[0008] In other words, the first idea is that the outer periphery 7 of the cell joint part 6 is threadedly engaged with the inner periphery of the female thread part 1. The internal shape of the cell joint 6 is similar to that of the Teflon tube tip 5. , is an optical cell formed so that beads 2 are inscribed therein.

[0009] In addition, the second idea is a female screw threaded on the inner diameter and screwed into the outer periphery 7 of the cell joint 6. The tube 1 has tapered portions 3 and 3' toward both ends. The bead part 2 is screwed so that the outer periphery 7 of the cell joint part 6 is screwed into the inner periphery of the female thread part 1. The internal shape of the cell joint 6 is a Teflon tube tip 5, a bead An optical cell with a connector formed by combining an optical cell formed so that part 2 is inscribed therein. It is le.

0010 The following is a diagram showing one embodiment of the present invention used in a rectangular prism type dye laser flow cell. Although the explanation will be based on the surface, the shape of the cell of the present invention is not limited to these. stomach.

[0011] Figure 1 is a perspective view of the connector and cell of the present invention, and Figure 2 is the connector of the present invention and a perspective view of the cell. Cross-sectional view of the cell. Figure 3 shows a cross-sectional view of a conventional thread nipple cell.

0012 The Teflon connector of the present invention is threaded on the inner diameter and is threaded onto the outer periphery 7 of the cell joint 6. Insert the Teflon tube 4 into the female threaded part 1 and taper part 3 toward both ends. , 3', the bead part is inscribed within the cell junction, and the female The threaded portion is screwed to the outer periphery of the cell joint and fixed.

[0013] The female screw portion 1 has a donut-shaped inner diameter so as to be screwed into the outer periphery 7 of the cell joint portion 6. As long as it is threaded, its outer peripheral shape is not particularly limited; for example, it may be cylindrical or prismatic. What is necessary is to provide an appropriate anti-slip device 9 for tightening the object.

[0014] In addition, when the female threaded portion 1 is screwed together with the outer periphery 7 of the cell joint portion, the bead portion is inserted into the cell. The hole diameter on the opposite side of the cell in the female thread part is smaller than the bead diameter because it is pressed against the side. It is preferable to

[0015] The material of the female thread part is not particularly limited, and can be made of Teflon to match the Teflon tube. , or one made of resin can be used.

[0016] The bead part 2 has a central hole 10, has a cylindrical or polygonal shape, and has a central hole 10, and is oriented toward both ends. Tapered portions 3, 3' are formed. In addition, the hole diameter of the bead part 2 is Make it slightly larger than the outer diameter of tube 4, and insert bead part 2 into Teflon tube 6. It should be able to slide when it is pressed.

[0017] In addition, the outer diameter of the bead portion 2 is determined so as to be inscribed in the cell joint portion, and the material of the bead portion 2 is is preferably made of Teflon to match the Teflon tube in terms of strength and chemical resistance. However, cells made of resin are also used for measuring samples with no problems with chemical resistance. be able to.

[0018] The outer periphery 7 of the cell joint 6 is threaded 11 to engage with the inner periphery of the female threaded portion 1. has been done. In addition, the shape of the inside of the joint part 6 is as shown in FIG. It is formed so that the tip 5 of the long tube is inscribed therein. In other words, from the opening to the inside, in order: bead diameter, taper diameter, Teflon tube diameter. The outer diameter of the Teflon tube should be the same as or slightly larger than the inner diameter of the Teflon tube. They are formed so that they are inscribed and continuous with the cell body.

[0019] To set the connector of this invention in the cell, attach the female screw to the Teflon tube 4. 1. Insert the bead 2 and insert the tip of the Teflon tube 5 into the opening 7 of the cell joint 6. Insert the beads and screw the female screw with the male screw of the joint to make the Teflon beads. The tube 6 and the cell can be firmly and closely connected to each other. Also, female screw 1 If a packing is added between the bead 2 and the bead 2 as necessary, the bond will be more firmly bonded.

[0020] Note that some cells have openings at the top and bottom; , the structure of the present invention can be provided above and below.

[0021]

【effect】

According to the present invention, Teflon can be easily and reliably removed without damaging the cell. It can be joined to a main tube, has a small joining gap, and can withstand hydraulic pressure. I can do that.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the connector and cell of the present invention.

FIG. 2 is a cross-sectional view of the connector and cell of the present invention.

FIG. 3 is a cross-sectional view of a conventional thread nipple cell.

[Explanation of symbols]

1 Female thread part 2 Bead part 2 3, 3’ taper part 4 Teflon tube 5 Teflon tube tip 6 Cell junction 7 Cell outer circumference 8 cells 9 Anti-slip 10 holes 11 Screw engraving 21 Male screw 22 Teflon tube 23 Disc-shaped tip 24 female screw 25 cells

Claims (2)

[Scope of utility model registration request] [Claim 1] The outer periphery 7 of the cell joint 6 is a female threaded portion 1.
The optical cell is threaded to engage with the inner periphery of the optical cell, and the internal shape of the cell joint 6 is such that the Teflon tube tip 5 and the bead 2 are inscribed therein. 2. A female threaded portion 1 which is threaded on the inner diameter and is threadedly engaged with the outer periphery 7 of the cell joint portion 6, and a Teflon tube 4 is inserted thereinto;
Bead part 2 having tapered parts 3, 3' toward both ends
The outer periphery 7 of the cell joint 6 is threaded to engage with the inner periphery of the female threaded part 1, and the internal shape of the cell joint 6 is formed such that the Teflon tube tip 5 and bead 2 are inscribed therein. An optical cell with a connector and an optical cell with a connector.