Anti-liquid-return moisture titration device for moisture detection of aminoacetaldehyde dimethyl acetal

Abstract

The utility model discloses an aminoacetaldehyde dimethyl acetal moisture detection liquid return prevention moisture titration device, which belongs to the technical field of titration devices, and comprises a detection unit, a driving unit and a pressure intensity adjusting unit, the detection unit comprises a machine body, a detection mechanism arranged on the upper surface of the machine body, and a bottle body positioned on the detection mechanism; the supporting plate is installed on the machine body, the stand column is vertically arranged on the supporting plate, the air cylinder is located in the stand column and extends upwards, the adjusting plate is installed at the top of the extending end of the air cylinder, and a connecting rod is arranged at the bottom, away from the side of the air cylinder, of the adjusting plate. The bottom of the connecting rod is in threaded connection with a threaded rod; the pressure intensity adjusting unit comprises a cover body installed on the bottle body and a sealing block connected with the top of the cover body, and a movable groove is formed in the top of the sealing block. The pressure intensity adjusting device has the advantages that internal pressure intensity and external pressure intensity can be conveniently adjusted to a certain extent, and the liquid return condition is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of titration devices, in particular to an aminoacetaldehyde dimethyl acetal moisture detection and liquid backflow prevention moisture titration device. Background Art

[0002] When analyzing the composition of a substance, it is sometimes necessary to measure the content of trace free water and crystalline water in the substance. In 1935, Karl Fischer proposed a method for determining water content using non-aqueous solution reagents, namely the I2-SO2 reagent method. This method essentially uses chemical reactions to determine water content and is suitable for measuring trace free water and crystalline water content in most organic and inorganic solids and liquid chemical products.

[0003] Among them, aminoacetaldehyde dimethyl acetal also needs to be tested in certain environments to determine its water ratio and adjustment, and a titrator is usually used for moisture titration testing.

[0004] However, in the measurement of liquid titration, due to the imbalance of internal and external pressure, the liquid in the capillary tube is likely to flow back frequently, which increases the measurement time and reduces the measurement efficiency and accuracy.

[0005] Based on this, it is necessary to propose a titration device that can effectively prevent liquid backflow during detection. Utility Model Content

[0006] The purpose of the utility model is to provide an aminoacetaldehyde dimethyl acetal moisture detection and liquid backflow prevention moisture titration device, so as to at least solve the above technical problems to a certain extent and reduce the liquid backflow in the capillary tube.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: comprising a detection unit, a driving unit and a pressure regulating unit, wherein the detection unit comprises a body, a detection mechanism provided on the upper surface of the body, and a bottle body located on the detection mechanism;

[0008] The driving unit includes a support plate mounted on the body, a column vertically arranged on the support plate, a cylinder extending upward from the column, an adjustment plate mounted on the top of the extended end of the cylinder, a connecting rod provided at the bottom of the adjustment plate away from the cylinder, and a threaded rod being threadedly connected to the bottom of the connecting rod;

[0009] The pressure regulating unit includes a cover body installed on the bottle body, a sealing block connected to the top of the cover body, a movable groove is provided on the top of the sealing block, a sealing gasket is inserted into the inside of the movable groove, a pressure block is fixedly installed on the top of the sealing gasket, a piston that moves in the sealing block is provided at the bottom of the pressure block, a limit block is fixedly installed on the top of the sealing block, and a limit hole is provided on the limit block.

[0010] Preferably, the support plate is not in contact with the detection mechanism and the bottle body, and the support plate is mounted on the body by bolts.

[0011] Preferably, the cylinder, the adjustment plate and the connecting rod are arranged in a door shape, and the connecting rod and the threaded rod are connected to the limit block.

[0012] Preferably, the threaded rod is located at the center of the limit block, and the threaded rod is fixedly connected to the limit block.

[0013] Preferably, the limiting hole passes through the pressure regulating unit, and a blocking block can be inserted into the limiting hole to block and open the hole.

[0014] Preferably, the piston is cylindrical and contacts the inner wall of the sealing block.

[0015] Preferably, the sealing gasket does not contact the piston, and the sealing gasket contacts the inner wall of the movable groove.

[0016] Preferably, the upper surface area of ​​the pressing block is larger than the upper surface area of ​​the sealing block.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] When the utility model is in use, the cylinder drives the adjusting plate to move vertically up and down, blocks the unused limit holes, drives the connecting rod, threaded rod and limit block downward through the cylinder and the adjusting plate, and further drives the pressure block downward. At this time, the sealing gasket moves downward in the movable groove, and the piston moves downward at the same time to compress the air in the space, further forming a certain pressure in the bottle body to meet the specified requirements, and the sealing gasket and the piston can be reversely controlled to move upward, reducing the compression of the air in the space to reduce the pressure. In the above manner, the internal and external pressures can be adjusted conveniently to a certain extent, and the liquid backflow can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the external structure of the overall structure of this embodiment;

[0021] Figure 2 This is a schematic cross-sectional view of the overall structure of this embodiment;

[0022] Figure 3 This is an enlarged schematic diagram of the structure at point A of this embodiment.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 100, detection unit; 110, machine body; 120, detection mechanism; 130, bottle body;

[0025] 200, drive unit; 210, support plate; 220, column; 221, cylinder; 230, adjustment plate; 240, connecting rod; 250, threaded rod;

[0026] 300, pressure regulating unit; 310, cover body; 320, sealing block; 321, movable groove; 330, pressure block; 331, sealing gasket; 3311, piston; 340, limiting block; 341, limiting hole. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-3 The utility model provides a technical solution: a moisture titration device for detecting moisture in aminoacetaldehyde dimethyl acetal and preventing backflow of liquid, comprising a detection unit 100, a driving unit 200 and a pressure regulating unit 300. The detection unit 100 comprises a body 110, a detection mechanism 120 arranged on the upper surface of the body 110, and a bottle body 130 on the detection mechanism 120, wherein the body 110 is the main body of the detection device, the detection mechanism 120 is on the body 110 for detecting the moisture content of the product, and the bottle body 130 is a container for storing the liquid to be detected. The above detection unit 100 has no special use or improvement, and will not be described in detail here.

[0029] The driving unit 200 includes a support plate 210 installed on the body 110. The support plate 210 does not contact the detection mechanism 120 and the bottle body 130. The support plate 210 is installed on the body 110 by bolts. The support plate 210 is used to install structures such as the column 220 and the cylinder 221 to prevent damage caused by direct contact with the body 110. The support plate 210 does not contact the bottle body 130, that is, it does not affect its normal detection work.

[0030] See Figure 1 and Figure 3 In a preferred embodiment, a column 220 is vertically arranged on the support plate 210, a cylinder 221 is located inside the column 220 and extends upward, and an adjustment plate 230 is installed on the top of the extended end of the cylinder 221. A connecting rod 240 is provided at the bottom of the adjusting plate 230 away from the cylinder 221. A threaded rod 250 is threadedly connected to the bottom of the connecting rod 240. The column 220 is vertically arranged so that the extended end of the cylinder 221 can move straight up and down, that is, the adjustment plate 230 can be pulled to move up and down, so that the cylinder 221 can transmit the pulling force to the adjustment plate 230, and further through the connecting rod 240 and the threaded rod 250, the limit block 340 is lifted and moved simultaneously with the lifting of the cylinder 221.

[0031] The cylinder 221, the adjustment plate 230, and the connecting rod 240 are arranged in a door shape. The door shape formed by each structure has a certain stability, and the movement amplitude is the same, no additional changes will occur, and it is ensured that the moving mechanism of the drive unit 200 section and the pressure adjustment unit section can respond and adjust in time. The connecting rod 240 and the threaded rod 250 are connected to the limit block 340. The threaded rod 250 is at the center position of the limit block 340, and can more fully apply force to the limit block 340 to prevent the limit block 340 from angular deviation when the force is applied. The threaded rod 250 is fixedly connected to the limit block 340, which can fully prevent the limit block 340 from falling off from the threaded rod 250, and maintain stable connection and use.

[0032] See Figure 1 、 Figure 3 When the sealing gasket 331 is in the movable groove 321, the gap of the movable groove 321 is sealed to prevent liquid leakage. As the sealing gasket 331 goes deeper, the air is isolated and the pressure is increased more effectively. The sealing gasket 331 does not contact the piston 3311. The sealing gasket 331 and the piston 3311 are respectively in the movable groove 321 of the sealing block 320 and the internal space of the sealing block 320, and the air pressure is adjusted respectively and simultaneously.

[0033] See Figure 3, further preferably, the sealing gasket 331 contacts the inner wall of the movable groove 321, and a pressure block 330 is fixedly installed on the top of the sealing gasket 331, which can seal the top of the sealing block 320 and keep the sealing block 320 isolated from the outside. The upper surface area of ​​the pressure block 330 is larger than the upper surface area of ​​the sealing block 320, which can prevent pressure and gas leakage. A piston 3311 is provided at the bottom of the pressure block 330 and is movable in the sealing block 320. The piston 3311 is cylindrical and contacts the inner wall of the sealing block 320. The piston 3311 is inserted into and pulled out of the bottom, which can effectively adjust the pressure of the compressed air in the space.

[0034] A limiting block 340 is fixedly installed on the top of the sealing block 320, and a limiting hole 341 is provided on the limiting block 340. The limiting hole 341 passes through the pressure regulating unit 300. A blocking block can be inserted into the limiting hole 341 to block and open the hole. The limiting hole 341 can be opened and closed as needed to facilitate the adjustment of the pressure therein. The limiting block 340 has a positioning function for fixing structures such as thin tubes, and the limiting hole 341 is the insertion part of the connecting part of the thin tube, etc. It has no special use and is not described here.

[0035] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting moisture in aminoacetaldehyde dimethyl acetal and preventing backflow of liquid, comprising a detection unit (100), a drive unit (200) and a pressure regulating unit (300), characterized in that: The detection unit (100) comprises a body (110), a detection mechanism (120) disposed on the upper surface of the body (110), and a bottle body (130) located on the detection mechanism (120); The driving unit (200) comprises a support plate (210) mounted on the machine body (110), a column (220) vertically arranged on the support plate (210), a cylinder (221) located inside the column (220) and extending upward, and an adjustment plate (230) mounted on the top of the extending end of the cylinder (221); a connecting rod (240) is provided at the bottom of the adjustment plate (230) away from the cylinder (221); and a threaded rod (250) is threadedly connected to the bottom of the connecting rod (240); The pressure regulating unit (300) comprises a cover body (310) mounted on the bottle body (130), a sealing block (320) connected to the top of the cover body (310), a movable groove (321) provided on the top of the sealing block (320), a sealing gasket (331) inserted into the inside of the movable groove (321), a pressure block (330) fixedly mounted on the top of the sealing gasket (331), a piston (3311) movable in the sealing block (320) provided at the bottom of the pressure block (330), a limiting block (340) fixedly mounted on the top of the sealing block (320), and a limiting hole (341) provided on the limiting block (340).

2. The aminoacetaldehyde dimethyl acetal moisture detection and anti-liquid backflow moisture titration device according to claim 1, characterized in that: The support plate (210) is not in contact with the detection mechanism (120) and the bottle body (130), and the support plate (210) is mounted on the machine body (110) via bolts.

3. The aminoacetaldehyde dimethyl acetal moisture detection and anti-liquid backflow moisture titration device according to claim 1, characterized in that: The cylinder (221), the adjustment plate (230), and the connecting rod (240) are arranged in a door shape, and the connecting rod (240) and the threaded rod (250) are connected to the limiting block (340).

4. The aminoacetaldehyde dimethyl acetal moisture detection and anti-liquid backflow moisture titration device according to claim 3, characterized in that: The threaded rod (250) is located at the center of the limiting block (340), and the threaded rod (250) is fixedly connected to the limiting block (340).

5. The aminoacetaldehyde dimethyl acetal moisture detection and anti-liquid backflow moisture titration device according to claim 1, characterized in that: The limiting hole (341) passes through the pressure regulating unit (300), and a blocking block can be inserted into the limiting hole (341) for blocking and opening the hole.

6. The aminoacetaldehyde dimethyl acetal moisture detection and anti-liquid backflow moisture titration device according to claim 1, characterized in that: The piston (3311) is cylindrical and contacts the inner wall of the sealing block (320).

7. The aminoacetaldehyde dimethyl acetal moisture detection and anti-liquid backflow moisture titration device according to claim 6, characterized in that: The sealing gasket (331) does not contact the piston (3311), and the sealing gasket (331) contacts the inner wall of the movable groove (321).

8. The aminoacetaldehyde dimethyl acetal moisture detection and anti-liquid backflow moisture titration device according to claim 1, characterized in that: The upper surface area of ​​the pressing block (330) is greater than the upper surface area of ​​the sealing block (320).

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