Light-proof color developing device

Abstract

The utility model provides a light-proof color developing device. The light-proof color developing device comprises a light-proof test water tank and a light-proof sampling box which are adjacently arranged, the shared side wall of the light-proof test water tank and the light-proof sampling box is a movable sliding plate; and the movable sliding plate can slide up and down. Test tube bracket slide rails are arranged at the bottom of the light-proof test water tank, and a plurality of test tube brackets are placed among the test tube bracket slide rails. The test tube support comprises a base and a test tube supporting frame. And an internal thread is arranged on the inner wall of a connecting hole formed in the base. And an external thread matched with the internal thread is arranged on the sampling pull rod. According to the light-proof color developing device, the movable sliding plate can be moved up and down according to actual requirements, so that the light-proof test water tank and the light-proof sampling box are communicated / isolated; and the target test tube bracket and the test tubes placed on the target test tube bracket are transferred from the light-proof test water tank to the light-proof sampling box by pushing / pulling the sampling pull rod. The whole sampling process can ensure that the test tubes which are not tested are kept away from light in the darkroom, and the best test effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of analysis and detection, in particular to a light-proof color development device for colorimetry using a laboratory spectrophotometer. Background Art

[0002] Spectrophotometry is a common and important analytical detection method. It has different requirements for the environment according to different color development principles. In the iron salt colorimetric method for determining thiocyanate, because the complex after color development is unstable and easily decomposes and fades when exposed to light, affecting the test results, it is required to develop the color in the dark. However, there is currently no special light-proof color development device, making it difficult to ensure the quality of the test. There are also many color development tests that require to be carried out at a certain temperature. At present, most of them are completed in a water bath. The test tube rack placed in the water bath is unstable and inconvenient to operate.

[0003] In view of this, it is necessary to design a light-shielding color display device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a light-shielding color development device which can set the color development temperature and meet the light-shielding requirement, thereby improving the accuracy of the color development test.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a light-proof color development device, including a light-proof test water tank with a cover and a light-proof sampling box with a cover arranged adjacent to each other, the common side wall of the light-proof test water tank and the light-proof sampling box is a movable slide; the movable slide can slide up and down; a temperature controller for adjusting the temperature in the light-proof test water tank is arranged below the light-proof test water tank; at least two test tube rack slide rails are arranged at the bottom of the light-proof test water tank, and a plurality of test tube racks are placed side by side on adjacent test tube racks. between the slide rails; the test tube holder comprises a base and a test tube support frame; the test tube support frame is provided with an upper fixing port for the test tube to pass through, and the base is provided with a test tube fixing hole corresponding to the position of the upper fixing port; the base is also provided with a connecting hole, and the inner wall of the connecting hole is provided with an internal thread; the light-proof color development device also comprises a sampling rod, and the sampling rod is provided with an external thread matching the internal thread; the side wall of the light-proof sampling box is provided with a first through hole for the sampling rod to pass through; the lower part of the light-proof test water tank is provided with a drain switch.

[0006] As a further improvement of the utility model, a positioning block is arranged in the light-proof sampling box, and the positioning block includes a base and a protruding portion protruding upward from the upper surface of the base; the protruding portion is provided with a second through hole for the sampling rod to pass through.

[0007] As a further improvement of the utility model, the upper surface of the base is on the same horizontal plane as the bottom surface of the light-proof test water tank.

[0008] As a further improvement of the utility model, two parallel test tube holder slide rails are arranged at the bottom of the light-proof test water tank, and the distance between the two test tube holder slide rails is equal to the width of the base of the test tube holder.

[0009] As a further improvement of the present invention, the first through hole, the second through hole and the connecting hole are collinear.

[0010] As a further improvement of the utility model, the connection holes are provided on both sides of the base.

[0011] As a further improvement of the utility model, a slide rail for the movable slide plate to slide is provided on the inner wall of the light-proof test water tank.

[0012] As a further improvement of the present invention, the width of the base of the positioning block is equal to the width of the base of the test tube support.

[0013] As a further improvement of the present invention, the longitudinal section of the test tube support is an isosceles trapezoid.

[0014] As a further improvement of the utility model, a gripping portion is provided on the movable slide plate.

[0015] The beneficial effects of the utility model are:

[0016] The light-proof color developing device provided by the utility model separates the light-proof test water tank from the light-proof sampling box by setting a movable slide plate, and according to actual needs, the movable slide plate is moved up and down to connect / isolate the light-proof test water tank and the light-proof sampling box; and the target test tube holder and the test tube placed on the target test tube holder are transferred from the light-proof test water tank to the light-proof sampling box by pushing / pulling the sampling rod. The whole sampling process can ensure that the test tubes not being tested are kept in the dark room to avoid light, so as to achieve the best test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the light-shielding color-developing device of the utility model.

[0018] Figure 2 Schematic diagram of the structure after removing the test tube support.

[0019] Figure 3 It is a schematic diagram of the structure of the light-proof and color-revealing device when the movable slide plate is opened.

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the test tube holder. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0023] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0024] See also Figures 1 to 4 As shown, the utility model provides a light-proof color development device 100, comprising a light-proof test water tank 20 with a cover plate 21 and a light-proof sampling box 30 with a cover plate 31, which are arranged adjacent to each other. The light-proof test water tank 20 and the light-proof sampling box 30 share a side wall, which is a movable slide 50. A slide rail for the movable slide 50 to slide is provided on the inner wall of the light-proof test water tank 20. The movable slide 50 can slide up and down to connect / isolate the light-proof test water tank 20 and the light-proof sampling box 30.

[0025] A temperature controller 10 for adjusting the temperature in the light-shielding test water tank 20 is provided below the light-shielding test water tank 20. The temperature controller 10 includes a housing, a heating portion, a temperature regulator 11 provided on the housing for adjusting the temperature in the light-shielding test water tank 20, a temperature display 13 for displaying the temperature in the light-shielding test water tank 20, a temperature indicator light 14, and a time display 12. The temperature controller 10 is a prior art, and the prior art can be used, and no further description is given here.

[0026] A water discharge switch 24 is provided at the lower part of the light-proof test water tank 20 .

[0027] At least two test tube rack slide rails 23 are arranged at the bottom of the light-proof test water tank 20 , and a plurality of test tube racks 6 are placed side by side between adjacent test tube rack slide rails 23 .

[0028] Specifically, the test tube holder 6 includes a base 61 and a test tube support frame 62. In this embodiment, the longitudinal section of the test tube holder 6 is an isosceles trapezoid. The test tube support frame 62 is provided with an upper fixing port 621 for the test tube 7 to pass through, and the base 61 is provided with a test tube fixing hole 611 corresponding to the position of the upper fixing port 621. In this way, the test tube can be effectively fixed to prevent leakage.

[0029] The base 61 is also provided with a connection hole 612, and an internal thread (not shown) is provided on the inner wall of the connection hole 612. The light-shielding color developing device also includes a sampling rod 4, and an external thread (not shown) matching the internal thread is provided on the sampling rod 4. A first through hole 32 for the sampling rod 4 to pass through is provided on the side wall of the light-shielding sampling box 30.

[0030] In this embodiment, two parallel test tube rack slide rails 23 are provided at the bottom of the light-proof test water tank 20, and the distance between the two test tube rack slide rails 23 is equal to the width of the base 61 of the test tube rack 6. In this way, six test tube racks 6 are placed side by side between the two test tube rack slide rails 23. Of course, both sides of the base 61 can be provided with connection holes 612. In this way, the test tube rack can slide along the test tube rack slide rails 23 and be effectively positioned.

[0031] A positioning block is provided in the light-proof sampling box 30 to facilitate the positioning and guiding of the sampling rod 4. The positioning block includes a base 33 and a protruding portion 34 protruding upward from the upper surface of the base 33. The protruding portion 34 is provided with a second through hole 341 for the sampling rod 4 to pass through. In particular, the first through hole 32, the second through hole 341 and the connecting hole 612 are collinear, and the upper surface of the base 33 is on the same horizontal plane as the bottom surface of the light-proof test water tank 20. In this arrangement, the sampling rod 4 passes through the first through hole 32, the second through hole 341 and the connecting hole 612 in sequence, and is threadedly connected to the connecting hole 612 by a thread, and then the sampling rod 4 is pulled back, and the sampling rod 4 moves smoothly from the light-proof test water tank 20 to the light-proof sampling box 30 along the test tube holder slide rail 23 with a test tube holder 6.

[0032] In some embodiments, the width of the base 33 of the positioning block is equal to the width of the base 61 of the test tube holder 6 .

[0033] In some embodiments, a gripping portion is provided on the movable slide 50 to facilitate gripping and pulling the movable slide 50 to move up and down.

[0034] The working process of the light-shielding color-developing device 100 of the present invention is as follows:

[0035] The first step is to plug in the power supply, open the cover 21 of the light-proof test water tank 20, and install the test tube holder 6 on the bottom of the light-proof test water tank 20 through the test tube holder slide rail 23; add an appropriate amount of distilled water into the light-proof test water tank 20, adjust the temperature regulator 11 according to the experimental needs, set the required test temperature by controlling the temperature regulator 11, and display the water bath temperature in the light-proof test water tank 20 through the temperature display 13. When the temperature reaches the required test temperature, the temperature indicator light 14 lights up and enters the insulation mode.

[0036] In the second step, the test tube 7 to be tested is installed on the test tube holder 6 through the upper fixing opening 621 and the test tube fixing hole 611 of the holder, and the cover plate 21 is closed.

[0037] Step 3: After the test time is reached, open the water switch 24 to drain the water in the light-proof test water tank 20. Pull up the movable slide 50, push the sampling rod 4 inward, and the sampling rod 4 passes through the first through hole 32, the second through hole 341 and the connecting hole 612 in sequence, and is threadedly connected with the connecting hole 612 of the target test tube holder through a thread, then pull back the sampling rod 4, pull the target test tube holder 6 and the test tube 7 placed on the target test tube holder 6 into the light-proof sampling box 30, put down the movable slide 50, open the cover 31 of the light-proof sampling box 30, take out the target test tube holder 6 and the test tube 7, and then close the cover 31. Repeat the above operation to take out all the test tube holders and test tubes.

[0038] Step 4: Disconnect the power supply and the test is completed.

[0039] In summary, the light-proof color developing device 100 provided by the utility model separates the light-proof test water tank 20 from the light-proof sampling box 30 by setting a movable slide plate 50, and according to actual needs, the movable slide plate 50 is moved up and down to connect / isolate the light-proof test water tank 20 and the light-proof sampling box 30; and the target test tube holder and the test tube placed on the target test tube holder are transferred from the light-proof test water tank 20 to the light-proof sampling box 30 by pushing / pulling the sampling rod 4. The whole sampling process can ensure that the test tubes not being tested are kept in the dark room to avoid light, so as to achieve the best test effect.

[0040] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A light-shielding color-developing device, characterized in that: It comprises a light-proof test water tank with a cover and a light-proof sampling box with a cover, the common side wall of the light-proof test water tank and the light-proof sampling box being a movable slide; the movable slide can slide up and down; a temperature controller for regulating the temperature in the light-proof test water tank is arranged below the light-proof test water tank; at least two test tube holder slide rails are arranged at the bottom of the light-proof test water tank, and a plurality of test tube holders are arranged side by side between the adjacent test tube holder slide rails; the test tube holder comprises a base and a test tube support frame; the test tube support frame is provided with an upper fixing port for the test tube to pass through, and the base is provided with a test tube fixing hole corresponding to the position of the upper fixing port; a connecting hole is also provided on the base, and an internal thread is provided on the inner wall of the connecting hole; the light-proof color developing device also comprises a sampling pull rod, and the sampling pull rod is provided with an external thread matching the internal thread; a first through hole for the sampling pull rod to pass through is provided on the side wall of the light-proof sampling box; a water discharge switch is provided at the lower part of the light-proof test water tank.

2. The light-shielding color-developing device according to claim 1, characterized in that: A positioning block is arranged in the light-proof sampling box, and the positioning block comprises a base and a protruding portion protruding upward from the upper surface of the base; a second through hole for the sampling rod to pass through is arranged on the protruding portion.

3. The light-shielding color-developing device according to claim 2, characterized in that: The upper surface of the base is on the same level as the bottom surface of the light-proof test water tank.

4. The light-shielding color-developing device according to claim 2, characterized in that: Two mutually parallel test tube support slide rails are arranged at the bottom of the light-proof test water tank, and the distance between the two test tube support slide rails is equal to the width of the base of the test tube support.

5. The light-shielding color-developing device according to claim 2, characterized in that: The first through hole, the second through hole and the connecting hole are collinear.

6. The light-shielding color-developing device according to claim 1, characterized in that: The connecting holes are arranged on both sides of the base.

7. The light-shielding color-developing device according to claim 1, characterized in that: The inner wall of the light-proof test water tank is provided with a slide rail for the movable slide plate to slide.

8. The light-shielding color-developing device according to claim 4, characterized in that: The width of the base of the positioning block is equal to the width of the base of the test tube support.

9. The light-shielding color-developing device according to claim 1, characterized in that: The longitudinal section of the test tube support is in an isosceles trapezoidal shape.

10. The light-shielding color-developing device according to claim 1, characterized in that: The movable slide plate is provided with a gripping portion.

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