CN-224203209-U - Flow injection device convenient for switching channels

CN224203209UCN 224203209 UCN224203209 UCN 224203209UCN-224203209-U

Abstract

The utility model provides a flow injection device convenient for switching channels, which belongs to the technical field of instrument analysis and comprises a bearing mechanism, wherein the bearing mechanism comprises a fixed plate, a material barrel fixedly arranged on the outer surface of the fixed plate, a material conveying pipe communicated with the material barrel and a material discharging pipe communicated with the material conveying pipe, and the adjusting mechanism comprises a butterfly valve movably connected in an inner cavity of the material conveying pipe, a fixed sleeve fixedly arranged on the outer surface of the material conveying pipe, a knob sleeved on the outer surface of the fixed sleeve, a rotating assembly for controlling the butterfly valve in a rotating manner by the knob and a limiting assembly for fixing the rotating assembly after rotating. According to the utility model, by designing the material barrels and the material conveying pipes, each material barrel can be communicated with the material conveying pipe through the independent material conveying pipe to form a multi-channel communication structure, so that a user can realize quick switching between different channels by only rotating the knob, the flexibility is improved, and the accuracy of experimental data is ensured.

Inventors

WANG JUAN
ZHAN XIA
XU JING
WANG LIN
CHEN XI
WANG QIAN
CAI JIE
MA CHANJUAN
LIU XING
CHEN JUNWEN

Assignees

天津市地质矿产测试中心有限公司

Dates

Publication Date: 20260505
Application Date: 20250430

Claims (7)

1. A flow injection device convenient for switching channels is characterized by comprising, The bearing mechanism (100) comprises a fixed plate (101), a material barrel (102) fixedly arranged on the outer surface of the fixed plate (101), a material conveying pipe (103) communicated with the material barrel (102), and a material discharging pipe (104) communicated with the material conveying pipe (103); The adjusting mechanism (200) comprises a butterfly valve (201) movably connected in the inner cavity of the conveying pipe (103), a fixed sleeve (202) fixedly arranged on the outer surface of the conveying pipe (103), a knob (203) sleeved on the outer surface of the fixed sleeve (202), a rotating assembly (204) for controlling the butterfly valve (201) to rotate by the knob (203), and a limiting assembly (205) for fixing the rotating assembly (204) after rotating; The rotating assembly (204) comprises a connecting rod (204 a) fixedly connected with the butterfly valve (201), a guide groove (204 b) formed in the inner surface of the fixed sleeve (202), a limit groove (204 c) formed in the inner surface of the fixed sleeve (202), and a limit column (204 d) fixedly mounted on the outer surface of the connecting rod (204 a).
2. A flow injection device for facilitating channel switching as claimed in claim 1, wherein said limiting assembly (205) comprises a spring (205 a) fixedly connected to the inner surface of said guide groove (204 b), a limiting block (205 b) fixedly connected to the other end of said spring (205 a), and a clamping groove (205 c) formed on the outer surface of said limiting post (204 d) and matched with said limiting block (205 b).
3. A flow injection device for facilitating switching of channels as claimed in claim 2, wherein the outer surface of the butterfly valve (201) is in contact with the inner wall of the feed delivery tube (103), and the outer surface of the fixed sleeve (202) is in sliding contact with the inner surface of the knob (203).
4. A flow injection device for facilitating channel switching as claimed in claim 3, wherein said connecting rod (204 a) extends through the outer surface of said fixed sleeve (202), and a bearing sleeve for cooperating rotation is mounted at the position where said connecting rod (204 a) extends through said fixed sleeve (202).
5. A flow injection device facilitating switching of channels as defined in claim 4, wherein said connecting rod (204 a) extends through said feed conduit (103) and is fixedly connected to said butterfly valve (201), and wherein the inner surface of said limit groove (204 c) is in sliding contact with the outer surface of said limit post (204 d).
6. A flow injection device for facilitating switching of channels as set forth in claim 5, wherein the end surface of said stopper post (204 d) is arcuate in design, and the outer surface of said stopper post (204 d) is in sliding contact with the inner surface of said guide groove (204 b).
7. The flow injection device for facilitating channel switching as claimed in claim 6, wherein the spring (205 a) and the limiting block (205 b) are symmetrically arranged on the inner surface of the guide groove (204 b), and the outer surface of the limiting block (205 b) is attached to the inner surface of the clamping groove (205 c).

Description

Flow injection device convenient for switching channels Technical Field The utility model belongs to the technical field of instrument analysis, and particularly relates to a flow injection device convenient for channel switching. Background In the field of analytical chemistry, flow injection analysis (Flow Injection Analysis, FIA) is widely used for automatic continuous determination of samples. Conventional flow injection devices typically employ a fixed flow path design, which is complex to operate and time consuming to replace or switch analysis channels, and difficult to meet the requirements of rapid multi-component detection. Therefore, there is a need for a flow injection device that is simple in structure, convenient to switch, and quick in response to improve analysis efficiency and system flexibility. In the prior art, when various reagents or samples need to be processed in a conventional flow injection device, an operator is usually required to manually replace a pipeline or readjust experimental settings, and this manner is time-consuming and easy to cause errors, so that accuracy of experimental results is affected. Disclosure of utility model The present utility model is directed to a flow injection device for facilitating channel switching, and aims to solve the problems set forth in the background art. In order to achieve the above purpose, the present utility model provides the following technical solutions: a flow injection device for facilitating switching of channels, comprising The bearing mechanism comprises a fixed plate, a material barrel fixedly arranged on the outer surface of the fixed plate, a material conveying pipe communicated with the material barrel and a discharging pipe communicated with the material conveying pipe; The adjusting mechanism comprises a butterfly valve movably connected in the inner cavity of the conveying pipe, a fixed sleeve fixedly arranged on the outer surface of the conveying pipe, a knob sleeved on the outer surface of the fixed sleeve, a rotating assembly for controlling the butterfly valve to rotate at the knob, and a limiting assembly for fixing the rotating assembly after rotating; the rotating assembly comprises a connecting rod fixedly connected with the butterfly valve, a guide groove formed in the inner surface of the fixed sleeve, a limit groove formed in the inner surface of the fixed sleeve, and a limit column fixedly mounted on the outer surface of the connecting rod. As a preferable scheme of the utility model, the limiting component comprises a spring fixedly connected to the inner surface of the guide groove, a limiting block fixedly connected to the other end of the spring, and a clamping groove arranged on the outer surface of the limiting column and matched with the limiting block. In a preferred embodiment of the present utility model, the outer surface of the butterfly valve is attached to the inner wall of the feed delivery pipe, and the outer surface of the fixing sleeve is in sliding contact with the inner surface of the knob. As a preferable scheme of the utility model, the connecting rod penetrates through the outer surface of the fixed sleeve, and a bearing sleeve matched with the connecting rod for rotation is arranged at the penetrating position of the connecting rod and the fixed sleeve. As a preferable scheme of the utility model, the connecting rod penetrates through the conveying pipe and is fixedly connected with the butterfly valve, and the inner surface of the limiting groove is in sliding contact with the outer surface of the limiting column. As a preferable scheme of the utility model, the end face of the limiting post is arc-shaped, and the outer surface of the limiting post is in sliding contact with the inner surface of the guide groove. As a preferable scheme of the utility model, the spring and the limiting block are symmetrically arranged on the inner surface of the guide groove, and the outer surface of the limiting block is attached to the inner surface of the clamping groove. Compared with the prior art, the intelligent material conveying device has the beneficial effects that by designing the material barrels and the material conveying pipes, each material barrel can be communicated with the material discharging pipe through the independent material conveying pipe to form a multi-channel communication structure, a user can realize quick switching among different channels only by rotating the knob, the flexibility is improved, and the accuracy of experimental data is ensured. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a