A dilution device

Abstract

This utility model discloses a dilution device, comprising: a dilution base plate; a weighing device fixed to the dilution base plate; a test tube holder fixed to the weighing device, the test tube holder having a test tube groove; a liquid addition device; and a transverse movement device for moving the liquid addition device above or away from the test tube holder. The transverse movement device includes: a fixed support fixed to the dilution base plate; a transverse movement cylinder fixed to the fixed support; and a transverse movement bracket fixed to the piston rod of the transverse movement cylinder. The liquid addition device is fixed to the transverse movement bracket. During the liquid addition process, the weighing device weighs in real time, and stops adding liquid when the required weight is reached. The real-time weighing capability of the weighing device makes the dilution more accurate.

Description

Technical Field

[0001] This utility model belongs to the field of detection technology, specifically relating to a dilution device. Background Technology

[0002] Soil testing samples, according to relevant national standards, are generally prepared as 25 ml solutions after pretreatment and placed in test tubes. A single sample typically tests for 1-8 different elements (most commonly 4-6). Some elements do not require dilution during testing. However, most elements require online dilution during testing, with the dilution factor depending on the specific sample.

[0003] However, the accuracy of dilution measurements using existing dilution devices is generally low. Utility Model Content

[0004] The purpose of this invention is to provide a dilution device that can increase the accuracy of dilution.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dilution device, comprising:

[0006] Dilute the base plate;

[0007] A weighing device, which is fixed to the dilution base plate;

[0008] A test tube holder, the test tube holder being fixed to the weighing device, and a test tube groove being provided on the test tube holder;

[0009] Liquid addition device;

[0010] A transverse movement device is used to move the liquid dispensing device above or away from the test tube holder.

[0011] Furthermore, the lateral movement device includes:

[0012] A fixing bracket is fixed to the dilution base plate;

[0013] A transverse cylinder, which is fixed on the fixed bracket;

[0014] A transverse support is fixed to the piston rod of the transverse cylinder, and the liquid adding device is fixed to the transverse support.

[0015] Furthermore, a fixed guide rail is fixed on the fixed bracket, and a slider is installed on the fixed guide rail. The slider is fixedly connected to the transverse support.

[0016] Furthermore, two photoelectric sensors are fixed on the fixed bracket. When the lower end of the transverse support is inserted into the slot of one of the photoelectric sensors, the liquid adding device is in the liquid adding position. When the lower end of the transverse support is inserted into the slot of the other photoelectric sensor, the liquid adding device is in the non-liquid adding state.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) The test tube to be diluted is placed on the test tube slot 4 of the test tube holder. At this time, the weighing device can weigh it. Then the horizontal moving device moves the liquid adding device to the top of the test tube. Then the liquid adding device adds liquid to the test tube for dilution. During the liquid adding process, the weighing device weighs in real time. When the required weight is reached, the liquid adding device stops adding liquid. The weighing device can weigh in real time, making the dilution more accurate.

[0019] (2) A slider is installed on the fixed guide rail, and the slider is fixedly connected to the transverse support, so that the transverse support moves more stably;

[0020] (3) By setting two photoelectric sensors, the location of the liquid adding device can be known, so as to facilitate automated operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the dilution device of this utility model;

[0022] Figure 2 for Figure 1 Top view;

[0023] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0024] Figure 4 This is a schematic diagram of the internal structure of the dilution device.

[0025] In the diagram: 1. Dilution base plate; 2. Weighing device; 3. Test tube holder; 4. Test tube trough; 5. Liquid addition device; 6. Fixed support; 7. Horizontal movement cylinder; 8. Horizontal movement support; 9. Fixed guide rail; 10. Slider; 11. Photoelectric sensor; 12. Test tube; 17. Liquid addition hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4 This utility model provides a technical solution for a dilution device.

[0028] A dilution device, comprising:

[0029] Dilute base plate 1;

[0030] Weighing device 2, which is fixed on dilution base plate 1;

[0031] Test tube holder 3 is fixed on weighing device 2, and test tube groove 4 is provided on test tube holder 3;

[0032] Liquid addition device 5;

[0033] The transverse movement device is used to move the liquid dispensing device 5 to above or away from the test tube holder 3.

[0034] The test tube 12 requiring dilution is placed on the test tube slot 4 of the test tube holder 3. The weighing device 2 then measures its weight. A horizontal movement device moves the dispensing device 5 above the test tube 12, and the dispensing device 5 adds liquid to the test tube 12 for dilution. During the dispensing process, the weighing device 2 weighs the tube in real time. Once the desired weight is reached, the dispensing device 5 stops adding liquid, and the horizontal movement device moves the dispensing device 5 out of the test tube 12 for easy removal. The real-time weighing capability of the weighing device 2 ensures more accurate dilution.

[0035] The lateral movement device includes:

[0036] Fixed bracket 6 is fixed on dilution base plate 1;

[0037] The transverse cylinder 7 is fixed on the fixed bracket 6;

[0038] The transverse support 8 is fixed on the piston rod of the transverse cylinder 7, and the liquid adding device 5 is fixed on the transverse support 8.

[0039] The transverse cylinder 7 can drive the transverse support 8 to move laterally, thereby driving the liquid dispensing device 5 to move laterally.

[0040] To make the movement of the transverse support 8 more stable, a fixed guide rail 9 is fixed on the fixed support 6, and a slider 10 is installed on the fixed guide rail 9. The slider 10 is fixedly connected to the transverse support 8.

[0041] Two photoelectric sensors 11 are fixed on the fixed bracket 6. When the lower end of the transverse support 8 is inserted into the slot of one of the photoelectric sensors 11, the liquid adding device 5 is in the liquid adding position. When the lower end of the transverse support 8 is inserted into the slot of the other photoelectric sensor 11, the liquid adding device 5 is in the non-liquid adding state. By setting two photoelectric sensors 11, the position of the liquid adding device 5 can be determined, so as to facilitate automated operation.

[0042] The liquid adding device 5 is provided with a liquid adding hole 17, and a connecting pipe is connected to the liquid adding hole 17. The liquid adding pump outputs liquid to the liquid adding hole through the connecting pipe to realize liquid adding.

[0043] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dilution device, characterized by, include: Dilute the base plate; A weighing device, which is fixed to the dilution base plate; A test tube holder, the test tube holder being fixed to the weighing device, and a test tube groove being provided on the test tube holder; Liquid addition device; A transverse movement device is used to move the liquid dispensing device above or away from the test tube holder.

2. A dilution device according to claim 1, wherein The lateral movement device includes: A fixing bracket is fixed to the dilution base plate; A transverse cylinder, which is fixed on the fixed bracket; A transverse support is fixed to the piston rod of the transverse cylinder, and the liquid adding device is fixed to the transverse support.

3. A dilution device according to claim 2, wherein, A fixed guide rail is fixed on the fixed bracket, and a slider is installed on the fixed guide rail. The slider is fixedly connected to the transverse support.

4. A dilution device according to claim 2, wherein Two photoelectric sensors are fixed on the fixed bracket. When the lower end of the transverse support is inserted into the slot of one of the photoelectric sensors, the liquid adding device is in the liquid adding position. When the lower end of the transverse support is inserted into the slot of the other photoelectric sensor, the liquid adding device is in the non-liquid adding state.

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