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CN-224221402-U - Digestion instrument is with constant volume device

CN224221402UCN 224221402 UCN224221402 UCN 224221402UCN-224221402-U

Abstract

The utility model discloses a constant volume device for a digestion instrument, which belongs to the field of digestion instruments, wherein two adjacent buffer rings are connected through connecting strips, test tubes penetrate through the buffer rings and realize buffer protection through the buffer rings, the upper end of a mounting seat is connected with a constant volume top plate through a connecting rod, the constant volume top plate is provided with a constant volume through hole which is opposite to the test tubes, the constant volume through hole is used for adding liquid to the test tubes, and two sides of the lower end of the constant volume top plate are provided with protective side plates. The constant volume device for the digestion instrument is provided with the structures such as the mounting seat, the buffer ring and the connecting strip, so that the test tube is effectively protected from vibration and impact damage, the service life is prolonged, and the experimental stability is improved. The through hole design of the constant volume top plate simplifies the liquid adding process and improves the experimental accuracy and repeatability. The protection curb plate prevents that liquid from spilling over, ensures experimental security. The constant volume mechanism is easy to maintain and disassemble, and is convenient for a user to maintain and replace parts through threaded connection, so that maintenance cost and time are reduced.

Inventors

  • GAO YUNXIA
  • LI YONGLEI
  • LI HE
  • MENG HAO

Assignees

  • 吉林市合润化工有限责任公司

Dates

Publication Date
20260512
Application Date
20250514

Claims (6)

  1. 1. The constant volume device for the digestion instrument comprises an instrument case (1), a heat radiation opening (2), a touch screen (3) and test tubes (5), wherein the heat radiation opening (2) and the touch screen (3) are distributed on the side wall and the front end of the instrument case (1), and the test tubes (5) are inserted into an upper end opening of the instrument case (1), and the constant volume device is characterized in that an installation seat (4) is arranged at the upper end of the instrument case (1), a plurality of buffer rings (7) are arranged at the upper end opening of the installation seat (4), two adjacent buffer rings (7) are connected through a connecting strip (6), and the test tubes (5) penetrate through the buffer rings (7) and realize buffer protection through the buffer rings (7); The upper end of mount pad (4) is connected with constant volume roof (8) through connecting rod (12), and set up constant volume through-hole (9) just right test tube (5) on constant volume roof (8), aim at test tube (5) through constant volume through-hole (9) and carry out liquid and add, the lower extreme both sides of constant volume roof (8) are equipped with protection curb plate (10).
  2. 2. The digestion instrument constant volume device according to claim 1, wherein the upper end and the lower end of the connecting rod (12) are respectively provided with a bolt head (11) and a threaded part (13), the bolt head (11) and the connecting rod (12) are integrally designed, the threaded part (13) is positioned at the lower end of the connecting rod (12), and the threaded part (13) is inserted into the hole of the mounting seat (4) and is in threaded fixation with the instrument case (1).
  3. 3. The digestion instrument constant volume device according to claim 2, wherein a handle is arranged at the center of the upper end of the constant volume top plate (8), the handle is a spherical handle, the protection side plate (10) is clamped on the constant volume top plate (8), a waist hole is formed in the side wall of the protection side plate (10), the protection side plate (10) is a transparent protection plate, protruding parts are arranged at four corners of the constant volume top plate (8), and the connecting rod (12) is located at the hole of the protruding part.
  4. 4. The digestion instrument constant volume device according to claim 3, wherein the mounting seat (4) is provided with a round hole, the round hole is opposite to a reagent tube placing port at the upper end of the instrument case (1), the plurality of reagent tube placing ports are distributed in a shape of a Chinese character 'kou', and a screw hole on the mounting seat (4) is opposite to a screw hole at the upper end of the instrument case (1).
  5. 5. The constant volume device for digestion instrument according to claim 4, wherein the buffer rings (7) are distributed in a shape of a Chinese character 'kou', the buffer rings (7) and the connecting strips (6) are integrally designed, the buffer rings (7) and the connecting strips (6) are made of buffer rubber materials, and the upper ports of the buffer rings (7) are designed in a horn mouth.
  6. 6. The digestion instrument constant volume device according to claim 5, wherein the top surface of the constant volume through hole (9) is designed as a waist hole, the test tube (5) passes through the constant volume through hole (9) and is arranged at a reagent tube placing port at the upper end of the instrument case (1), and a constant volume dropper is inserted into the constant volume through hole (9) to realize constant volume operation of the test tube (5).

Description

Digestion instrument is with constant volume device Technical Field The utility model relates to the field of digestion instruments, in particular to a constant volume device for a digestion instrument. Background The digestion instrument is a common sample pretreatment device, and is mainly used for degrading substances difficult to detect and converting the substances into easily-detected compounds or ions so as to carry out subsequent analysis and detection. The digestion instrument is widely applied to researches and experiments in various fields of chemistry, environment, food, biology and the like, such as digestion of environmental samples of soil, water samples and the like, analysis of the content of pollutants such as heavy metals, organic matters and the like in the environmental samples, digestion of food samples, detection of the content of nutrients, additives and the like in the food samples, digestion of biological tissues, cells and the like, subsequent molecular biology research, digestion of geological samples, analysis of the content of elements and compounds in the geological samples, and digestion and analysis of chemical products, and understanding of the composition and properties of the chemical products. The sizing devices in digestion instruments are typically not their standard, but some advanced digestion instruments or digestion systems may be equipped with automatic sizing functions. Volumetric devices generally involve accurate liquid measurement and dispensing systems to ensure that the digested sample volume meets predetermined requirements. Such volumetric devices may include conventional tools such as volumetric flasks, pipettes, burettes, and the like, and may employ more advanced automated liquid handling systems. The existing constant volume device for the digestion instrument has a remarkable defect in the actual use process, namely, because the upper end of the test tube is provided with the top plate, an operator must dismantle the top plate firstly when carrying out constant volume operation. The process of dismantling the top plate is time-consuming and labor-consuming, and the working efficiency is reduced. The operator is required to spend additional time and effort to complete this step, thereby affecting the overall experimental or testing progress. There is a risk of damaging the test tube or the device during the removal of the top plate. If improperly operated, the test tube may be broken or the device may be damaged, thereby adversely affecting the experimental results. The presence of the top plate also limits the flexibility of the sizing operation. In some cases, the operator may need to make the sizing without releasing the top plate, but existing device designs do not meet this requirement. Disclosure of utility model The utility model mainly aims to provide a constant volume device for a digestion instrument, which can effectively solve the problems in the background technology. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the constant volume device for the digestion instrument comprises an instrument case, a heat radiation port, a touch screen and a test tube, wherein the heat radiation port and the touch screen are distributed on the side wall and the front end of the instrument case, and the test tube is inserted into an opening at the upper end of the instrument case; The upper end of the instrument case is provided with a mounting seat, the opening of the upper end of the mounting seat is provided with a plurality of buffer rings, two adjacent buffer rings are connected through a connecting strip, and a test tube passes through the buffer rings and realizes buffer protection through the buffer rings; The upper end of mount pad is connected with the constant volume roof through the connecting rod, and has seted up the constant volume through-hole just to the test tube on the constant volume roof, aligns the test tube through the constant volume through-hole and carries out liquid and add, the lower extreme both sides of constant volume roof are equipped with the protection curb plate. The upper end and the lower end of the connecting rod are respectively provided with a bolt head and a threaded part, the bolt head and the connecting rod are integrally designed, the threaded part is positioned at the lower end of the connecting rod, is inserted into the hole of the mounting seat through the threaded part and is in threaded fixation with the instrument case; further preferably, a handle is arranged at the center of the upper end of the constant volume top plate, the handle is a spherical handle, the protection side plate is clamped on the constant volume top plate, a waist hole is formed in the side wall of the protection side plate, the protection side plate is a transparent protection plate, protruding parts are arranged at four corners of the constant volume top plate, and the connecting