Digestion heating device for water quality analysis

Abstract

The utility model relates to the technical field of water quality detection, in particular to a digestion heating device for water quality analysis. Comprising a heat insulation box, a test tube rack and a plurality of test tube placing mechanisms, an electric heater is mounted on the inner side of the heat insulation box; the test tube rack is arranged at the upper end of the heat-insulating box; the plurality of test tube placing mechanisms are all mounted on the test tube rack, each test tube placing mechanism comprises an annular shell, a large ball and a limiting rack, the annular shells are connected with the test tube rack, the large balls are arranged on the inner sides of the annular shells, test tube holes are formed in the large balls, and a plurality of small balls are mounted on the inner walls of the annular shells; the small balls make contact with the outer wall of the large ball, and the limiting frame is connected with the lower end of the large ball. According to the technical scheme, by arranging the test tube placement mechanism, the test tubes are not prone to inclination, and therefore the probability that liquid in the test tubes spills out can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality detection technical field especially, and relates to a kind of digestion heating device for water quality analysis. BACKGROUND

[0002] Digestion instrument is a kind of commonly used sample pretreatment equipment, can be divided into semi-automatic digestion instrument and full-automatic digestion instrument according to automation degree;According to principle, it can be divided into electric heating digestion instrument and microwave digestion instrument, and there are relatively mature products, and it is widely applied.In the water quality detection, some projects need to digest sample, so as to ensure the accuracy of detection result.Digestion is to use acid and high temperature to destroy organic matter in water sample, so that it cannot interfere with the analysis result.The digestion method of sample in water quality analysis is commonly used two kinds of mild digestion method and violent digestion method.Digestion instrument is an instrument that can place digestion tube and continuously heat the part where digestion tube is located.

[0003] The patent with announcement number CN218766283U discloses a digestion heater for water quality analysis, relating to water quality analysis technical field;Including body, digestion platform and support assembly;The support assembly is placed on the digestion platform, and the support assembly includes a mounting frame, a plurality of test tube racks are installed in the mounting frame, the test tube rack includes two symmetrically installed support plates, a hinge seat is installed on the side close to the opposite support plate at both ends of the support plate, and the hinge seat is connected with a connecting rod;A sleeve is installed on the outer side of the support plate, a limiting rod is sleeved in the sleeve, and the limiting rod passes through the sleeve on both sides of the test tube rack and is connected with the inner wall of the mounting hole at both ends;The end of the connecting rod away from the support plate is connected with an adjusting rod, and the adjusting rod is rotatably connected with the connecting rods on the two support plates connected with the same limiting rod.

[0004] The above disclosed patent still has the following technical defects: in the process of taking out the digestion tube, since the test tube cannot be sealed, and it is difficult to ensure that the digestion tube is always in the vertical state during movement, liquid is easy to flow out due to the inclination of the test tube. UTILITY MODEL CONTENT

[0005] The utility model aims at the problems in the background art, and proposes a digestion heating device for water quality analysis.

[0006] The technical scheme of the utility model relates to a digestion heating device for water quality analysis, which comprises:

[0007] The inner side of the heat insulation box is provided with an electric heater;

[0008] The test tube rack is arranged at the upper end of the heat insulation box;

[0009] A plurality of test tube placing mechanisms are installed on the test tube rack, and each test tube placing mechanism comprises a ring-shaped shell, a large ball and a limiting frame, wherein the ring-shaped shell is connected with the test tube rack, the large ball is arranged on the inner side of the ring-shaped shell, a test tube hole is arranged on the large ball, a plurality of small balls are installed on the inner wall of the ring-shaped shell and are in contact with the outer wall of the large ball, and the limiting frame is connected with the lower end of the large ball.

[0010] Preferably, at least two supporting rods are vertically connected with the two ends of the test tube rack; and the first heat insulation handle is installed on the test tube rack.

[0011] Preferably, the heat insulation cover is arranged on the upper end of the test tube rack, the first heat insulation handle is located on the outer side of the heat insulation cover, the heat insulation cover is rotatably installed with a heat insulation cover plate on the upper end thereof, and the second heat insulation handle is installed on the heat insulation cover plate.

[0012] Preferably, the electric heater switch is installed on the heat insulation box and is electrically connected with the electric heater.

[0013] Preferably, the ring-shaped shell is a spherical shell cut in the middle.

[0014] Preferably, the mirror surface reflection film is arranged on the inner wall of the heat insulation box.

[0015] Compared with the prior art, the present application has the following beneficial technical effects: the cooperation of the ring-shaped shell, the large ball, the limiting frame and the plurality of small balls ensures that the limiting frame is vertically downward even if the test tube rack is slightly deflected, prevents liquid from spilling due to the inclination of the test tube, and has high stability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of the present application.

[0017] Fig. 2 It is an explosion view of the present application.

[0018] Fig. 3 It is a structural schematic view of the test tube placing mechanism in the present application.

[0019] The drawings show that: 1, heat insulation box; 2, test tube rack; 3, heat insulation cover; 4, ring-shaped shell; 5, large ball; 501, test tube hole; 6, heat insulation cover plate; 8, electric heater switch; 91, first heat insulation handle; 92, second heat insulation handle; 10, electric heater; 11, supporting rod; 12, limiting frame; 13, small ball. DETAILED DESCRIPTION

[0020] Example one

[0021] As Figs. 1-3As shown, the water quality analysis digestion heating device comprises a heat insulation box 1, a test tube rack 2 and a plurality of test tube placing mechanisms.

[0022] An electric heater 10 is mounted on the inner side of the heat insulation box 1, and an electric heater switch 8 is mounted on the heat insulation box 1 and electrically connected with the electric heater 10. The electric heater switch 8 is configured to control the on-off of the electric heater 10 and adjust the power of the electric heater 10.

[0023] A mirror surface reflecting film is arranged on the inner wall of the heat insulation box 1. The mirror surface reflecting film can reduce the absorption of the heat generated by the electric heater 10 by the heat insulation box 1 and increase the heat insulation effect of the heat insulation box 1. It is necessary to note that the mirror surface reflecting film is also arranged on the bottom end of the test tube rack 2.

[0024] The test tube rack 2 is arranged on the upper end of the heat insulation box 1. Two support rods 11 are vertically connected to each end of the test tube rack 2. The bottom end of the support rod 11 is located below a limiting frame 12. The support rod 11 is configured to support the test tube rack 2 so that the test tube rack 2 can be placed above a table top. A first heat insulation handle 91 is mounted on each end of the test tube rack 2. The first heat insulation handle 91 is configured to facilitate an operator to lift the test tube rack 2.

[0025] The plurality of test tube placing mechanisms are mounted on the test tube rack 2. Each test tube placing mechanism comprises a ring-shaped shell 4, a large ball 5 and the limiting frame 12. The ring-shaped shell 4 is connected with the test tube rack 2 and is a spherical shell with a middle part cut off. The large ball 5 is arranged on the inner side of the ring-shaped shell 4. A test tube hole 501 is formed in the large ball 5. A plurality of small balls 13 are mounted on the inner wall of the ring-shaped shell 4 and are in contact with the outer wall of the large ball 5. The limiting frame 12 is connected with the lower end of the large ball 5.

[0026] Specifically, the structure cooperation of the annular shell 4, the large ball 5, the limiting frame 12 and the plurality of small balls 13 can ensure that the limiting frame 12 is vertically downward even if the test tube rack 2 is slightly deflected, so as to prevent liquid from spilling due to the inclination of the test tube. When placing the test tube, the test tube with water is inserted through the test tube hole 501, and the test tube hole 501 is gap-fitted with the outer wall of the test tube. The limiting frame 12 is used to limit the bottom end of the test tube, and the limiting frame 12 should minimize the area of the test tube. After the plurality of test tubes to be heated are placed in the specified position, the test tube rack 2 is placed above the heat insulation box 1, so that the plurality of test tubes are placed inside the heat insulation box 1. The electric heater 10 is turned on by the electric heater switch 8. The electric heater 10 generates heat by flowing through the electric heating wire, and converts electric energy into heat energy by Joule effect, so as to heat the water inside the test tube. It should be pointed out that in order to limit the test tube rack 2, limiting blocks are connected to the remaining two sides of the test tube rack 2 except the two sides adjacent to the support rods 11. The limiting blocks and the support rods 11 can limit the test tube rack 2 and prevent the test tube rack 2 from shifting horizontally relative to the heat insulation box 1.

[0027] Embodiment two

[0028] As shown in Figs. 1-3 , the present embodiment proposes a digestion heating device for water quality analysis, which comprises a heat insulation box 1, a test tube rack 2 and a plurality of test tube placing mechanisms.

[0029] The inner side of the heat insulation box 1 is provided with an electric heater 10, and the heat insulation box 1 is provided with an electric heater switch 8. The electric heater switch 8 is electrically connected with the electric heater 10. The electric heater switch 8 is used to control the on-off of the electric heater 10, and the power of the electric heater 10 can also be adjusted by the electric heater switch 8.

[0030] A mirror surface reflecting film is arranged on the inner wall of the heat insulation box 1. The mirror surface reflecting film can reduce the absorption of the heat insulation box 1 to the heat emitted by the electric heater 10, and can increase the heat insulation effect of the heat insulation box 1. It should be pointed out that a mirror surface reflecting film is also arranged at the bottom end of the test tube rack 2.

[0031] The test tube rack 2 is arranged at the upper end of the heat insulation box 1. Two support rods 11 are vertically connected to each end of the test tube rack 2. The bottom end of the support rod 11 is located below the limiting frame 12. The support rod 11 is used to support the test tube rack 2, so that the test tube rack 2 can be placed above the table top. A first heat insulation handle 91 is arranged at each end of the test tube rack 2. The first heat insulation handle 91 is convenient for the operator to lift the test tube rack 2.

[0032] The plurality of test tube placing mechanisms are all installed on the test tube rack 2, and each test tube placing mechanism comprises a ring-shaped shell 4, a large ball 5 and a limiting frame 12, wherein the ring-shaped shell 4 is connected with the test tube rack 2, the ring-shaped shell 4 is a spherical shell with a middle part cut off, the large ball 5 is arranged on the inner side of the ring-shaped shell 4, a test tube hole 501 is formed in the large ball 5, a plurality of small balls 13 are installed on the inner wall of the ring-shaped shell 4, the plurality of small balls 13 are all in contact with the outer wall of the large ball 5, and the limiting frame 12 is connected with the lower end of the large ball 5.

[0033] It should be noted that the upper end of the test tube rack 2 is provided with a heat insulation cover 3, the first heat insulation handle 91 is located on the outer side of the heat insulation cover 3, the upper end of the heat insulation cover 3 is rotatably installed with a heat insulation cover plate 6, and the second heat insulation handle 92 is installed on the heat insulation cover plate 6; the heat insulation cover 3 and the heat insulation cover plate 6 can reduce the loss of heat, avoid the first heat insulation handle 91 from being heated, and also avoid dust from entering the test tube.

[0034] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A digestion and heating device for water quality analysis, characterized in that, include: An insulated box (1) is provided with an electric heater (10) installed inside the insulated box (1); Test tube rack (2), the test tube rack (2) is located at the top of the heat insulation box (1); Multiple test tube placement mechanisms are installed on the test tube rack (2). The test tube placement mechanism includes an annular shell (4), a large ball bearing (5), and a limiting frame (12). The annular shell (4) is connected to the test tube rack (2). The large ball bearing (5) is located on the inner side of the annular shell (4). The large ball bearing (5) has a test tube hole (501). Multiple small balls bearing (13) are installed on the inner wall of the annular shell (4). The multiple small balls bearing (13) are in contact with the outer wall of the large ball bearing (5). The limiting frame (12) is connected to the lower end of the large ball bearing (5).

2. The digestion and heating device for water quality analysis according to claim 1, characterized in that, The test tube rack (2) has at least two vertically connected support rods (11) at both ends; and the test tube rack (2) has a first heat-insulating handle (91) installed at both ends.

3. The digestion and heating device for water quality analysis according to claim 2, characterized in that, A heat insulation cover (3) is provided on the upper periphery of the test tube rack (2). The first heat insulation handle (91) is located on the outside of the heat insulation cover (3). A heat insulation cover plate (6) is rotatably installed on the upper end of the heat insulation cover (3). A second heat insulation handle (92) is installed on the heat insulation cover plate (6).

4. The digestion and heating device for water quality analysis according to claim 1, characterized in that, An electric heater switch (8) is installed on the heat insulation box (1), and the electric heater switch (8) is electrically connected to the electric heater (10).

5. The digestion and heating device for water quality analysis according to claim 1, characterized in that, The annular shell (4) is obtained by cutting the middle part of the spherical shell.

6. The digestion and heating device for water quality analysis according to claim 1, characterized in that, The inner wall of the heat insulation box (1) is provided with a mirror reflective film.

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