Microwave digestion instrument for water quality detection

Abstract

The utility model discloses a microwave digester for water quality detection, which relates to the technical field of microwave digester and comprises a microwave digester main body, a rotating shaft is detachably mounted at the bottom of the inner wall of the microwave digester main body, the top of the rotating shaft is rotatably connected with a turntable base, and two fixing columns are symmetrically and detachably mounted on the periphery of the top of the turntable base. And a fixing ring is detachably mounted at the top of the fixing column. According to the microwave digestion instrument for water quality detection disclosed by the utility model, the arc-shaped elastic sheet pushes the movable rod within the elastic force range of the arc-shaped elastic sheet to drive the pressing plate to clamp test tubes with different sizes, so that the test tubes with different sizes are stably clamped, the application range of the equipment is wider, and the overall practicability is stronger; wheels of the supporting wheels are used as supports for the edge of the rotary table base and roll on the annular base along with rotation of the rotary table base, and the rotary table base rotates more stably, so that a sample in a test tube assembled on the rotary table base is more stable during rotary preparation in the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave digestion instruments, in particular to a microwave digestion instrument for water quality detection. Background Art

[0002] Water is the source of life, and water quality testing is the guarantee of safe water use. In order to conduct water quality testing efficiently, a microwave digester will be used in the water quality testing process. The microwave digester uses the penetration and activation reaction ability of microwaves to heat the reagents and samples in the sealed container, which can increase the pressure in the sample preparation container and increase the reaction temperature, thereby greatly improving the reaction rate and shortening the sample preparation time.

[0003] However, the test tube slots in the turntable of existing microwave digestion instruments are mostly of fixed size. Only customized test tubes can be inserted into the test tube slots, and the scope of application is small. When the sample quantity is small, it is more efficient to prepare the sample with a smaller test tube, but the fixed test tube slot size cannot adapt to smaller test tubes, and the turntable is not stable enough when rotating. In order to solve the shortcomings of the existing technology, we propose a microwave digestion instrument for water quality testing. Utility Model Content

[0004] The main purpose of the utility model is to provide a microwave digestion instrument for water quality detection, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A microwave digestion instrument for water quality detection comprises a microwave digestion instrument body, a rotating shaft is detachably installed at the bottom of the inner wall of the microwave digestion instrument body, and a turntable base is rotatably connected to the top of the rotating shaft, and two fixing columns are symmetrically and detachably installed around the top of the turntable base, a fixing ring is detachably installed on the top of the fixing column, and a plurality of fastening components are evenly arranged around the top of the fixing ring, and a plurality of connecting pipes are evenly and detachably installed around the top of the microwave digestion instrument body. The fastening component comprises a mounting ring, one end of the mounting ring is connected with the top of the fixing ring through, four pairs of through holes are evenly opened around the inner wall of the mounting ring, and movable rods are slidably connected inside the through holes opened by the mounting ring, and a pressure plate is detachably installed at one end of the movable rod, and a sliding groove is opened inside the fixing ring, and an arc-shaped spring sheet is abutted on one side of the inner wall of the sliding groove, and a support plate is detachably installed on the inner side of the arc-shaped spring sheet, and a positioning rod is detachably installed on one side of the sliding groove on the arc-shaped spring sheet.

[0007] Preferably, the height of the fixing column is the same as that of the connecting pipe, the diameter of the connecting pipe is the same as that of the mounting ring, the inner diameter of the connecting pipe is the same as that of the mounting ring, and the top of the connecting pipe is detachably connected to the bottom of the mounting ring.

[0008] Preferably, the cross section of the slide groove is "T"-shaped, the end of the movable rod away from the pressure plate is slidably connected to the inside of the slide groove, and the end of the movable rod away from the pressure plate abuts against the outer side of the arc-shaped spring piece.

[0009] Preferably, both ends of the arc-shaped spring piece are provided with rounded corners, the inner side of the arc-shaped spring piece is connected through one end of the positioning rod, and the positioning rod is connected through one end of the arc-shaped spring piece and one end of the movable rod.

[0010] Preferably, one end of the support plate away from the arc-shaped spring piece is slidably connected to one side of the positioning rod, and the mounting ring, movable rod, pressure plate, arc-shaped spring piece, support plate and positioning rod are all made of polypropylene.

[0011] Preferably, four supporting wheels are evenly and detachably mounted around the bottom of the turntable base, an annular base is detachably mounted on the bottom of the inner wall of the microwave digestion instrument body, the bottom of the supporting wheel abuts against the top of the annular base, a door panel is hinged on one side of the microwave digestion instrument body, and an observation window is detachably mounted on one side of the door panel.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, the pressure plates arranged around the mounting ring are pressed against the side walls of the test tubes containing the samples to be prepared, so that the test tubes containing the samples to be prepared are firmly fixed in the connecting tubes. The arc-shaped spring pieces push the movable rods within their own elastic force range to drive the pressure plates to clamp test tubes of different sizes, thereby firmly clamping test tubes of different sizes. The equipment has a wider range of application and stronger overall practicality. When the samples are scarce, the test tubes with smaller diameters are clamped. Compared with the test tubes of original size, the sample has a larger area exposed to microwaves in the equipment, thereby improving the preparation efficiency.

[0015] 2. In the utility model, the wheels of the supporting wheels are provided as supports at the edge of the turntable base. As the turntable base rotates, the wheels roll on the annular base, and the rotation of the turntable base is more stable. Therefore, the samples in the test tubes assembled on the turntable base are more stable when rotating in the equipment, and the preparation process is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main body disassembly structure of the microwave digestion instrument of the utility model;

[0018] Figure 3 is a cross-sectional view of the fastening assembly of the utility model;

[0019] Figure 4 yes Figure 3Magnified view of area A.

[0020] In the figure: 1. Microwave digestion instrument body; 2. Rotating shaft; 3. Turntable base; 4. Fixed column; 5. Fixed ring; 6. Fastening assembly; 7. Connecting pipe; 8. Mounting ring; 9. Movable rod; 10. Pressing plate; 11. Slide groove; 12. Arc-shaped spring piece; 13. Support plate; 14. Positioning rod; 15. Support wheel; 16. Ring base; 17. Door panel; 18. Observation window. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1 and Figure 2 As shown, a microwave digester for water quality detection comprises a microwave digester body 1, a rotating shaft 2 is detachably mounted on the bottom of the inner wall of the microwave digester body 1, a turntable base 3 is rotatably connected to the top of the rotating shaft 2, two fixing columns 4 are symmetrically and detachably mounted around the top of the turntable base 3, a fixing ring 5 is detachably mounted on the top of the fixing column 4, when the microwave digester body 1 is started, the rotating shaft 2 rotates to drive the turntable base 3 to rotate, the turntable base 3 drives the fixing columns 4 to drive the fixing ring 5 to rotate, a plurality of fastening components 6 are evenly arranged around the top of the fixing ring 5, a plurality of connecting tubes 7 are evenly and detachably mounted around the top of the microwave digester body 1, the fastening components 6 securely hold test tubes containing samples to be prepared in the connecting tubes 7, and can clamp test tubes of different sizes.

[0023] Four supporting wheels 15 are evenly and detachably installed around the bottom of the turntable base 3. An annular base 16 is detachably installed at the bottom of the inner wall of the microwave digestion instrument body 1. The bottom of the supporting wheel 15 abuts against the top of the annular base 16. A door panel 17 is hinged on one side of the microwave digestion instrument body 1. An observation window 18 is detachably installed on one side of the door panel 17. When the microwave digestion instrument body 1 is working, the inspector can observe the situation inside the microwave digestion instrument body 1 through the observation window 18. When the turntable base 3 rotates, the supporting wheel 15 at the bottom of the turntable base 3, as a support at the edge of the turntable base 3, rolls on the annular base 16 as the turntable base 3 rotates, and the turntable base 3 rotates more stably.

[0024] like Figure 3 and Figure 4As shown, the fastening assembly 6 includes a mounting ring 8, one end of which is connected with the top of the fixing ring 5 through the mounting ring 8, the height of the fixing column 4 is the same as the height of the connecting tube 7, the diameter of the connecting tube 7 is the same as the diameter of the mounting ring 8, the inner diameter of the connecting tube 7 is the same as the inner diameter of the mounting ring 8, the top of the connecting tube 7 is detachably connected with the bottom of the mounting ring 8, so that the mounting ring 8 cooperates with the connecting tube 7 to assemble the test tube, four pairs of through holes are evenly opened around the inner wall of the mounting ring 8, and the inside of the through holes opened by the mounting ring 8 are all slidably connected with movable rods 9, and a pressure plate 10 is detachably installed at one end of the movable rod 9, a sliding groove 11 is opened inside the fixing ring 5, and an arc-shaped spring piece 12 is abutted on one side of the inner wall of the sliding groove 11, and a support plate 13 is detachably installed on the inner side of the arc-shaped spring piece 12, and a positioning rod 14 is detachably installed on one side of the sliding groove 11. The cross-section of 11 is in a "T" shape, and the end of the movable rod 9 away from the pressure plate 10 is slidably connected to the inside of the slide groove 11, and the end of the movable rod 9 away from the pressure plate 10 is in contact with the outer side of the arc-shaped spring piece 12, and both ends of the arc-shaped spring piece 12 are provided with rounded corners. The inner side of the arc-shaped spring piece 12 is connected with one end of the positioning rod 14 through the inside, and the positioning rod 14 penetrates one end of the arc-shaped spring piece 12 and is connected with one end of the movable rod 9 through the inside, and the support plate 13 is connected with one side of the positioning rod 14 away from the end of the arc-shaped spring piece 12 through the side, and the mounting ring 8, the movable rod 9, the pressure plate 10, the arc-shaped spring piece 12, the support plate 13 and the positioning rod 14 are all made of polypropylene. The polypropylene material ensures that the mounting ring 8, the movable rod 9, the pressure plate 10, the arc-shaped spring piece 12, the support plate 13 and the positioning rod 14 The structure can be safely used in a microwave environment without affecting the normal operation of the equipment.

[0025] When the pressing plate 10 is squeezed by the test tube containing the sample to be prepared, it pushes the movable rod 9, and the movable rod 9 pushes the abutting arc-shaped spring piece 12. The arc-shaped spring piece 12 is deformed and becomes flat under pressure. The arc-shaped spring piece 12 pushes the supporting plate 13 on the positioning rod 14. Limited by the positioning rod 14, the two ends of the arc-shaped spring piece 12 slide toward the two sides of the slide groove 11 with the positioning rod 14 as the center until the limit of the size of the test tube that can be installed is reached when one side of the supporting plate 13 is against the inner wall of the slide groove 11. After the test tube containing the sample to be prepared is fully inserted into the connecting tube 7, the pressing plates 10 arranged around the mounting ring 8 are all against the side walls of the test tube containing the sample to be prepared, and the test tube containing the sample to be prepared is stabilized in the connecting tube 7. The arc-shaped spring piece 12 pushes the movable rod 9 within its own elastic force range to drive the pressing plate 10 to clamp test tubes of different sizes. The scope of application is wider and the overall practicality of the equipment is stronger.

[0026] How it works

[0027] It should be noted that the utility model is a microwave digestion instrument for water quality detection. When in use, the door panel 17 is first opened, and the detection personnel hold the fixing ring 5 to drive the fixing column 4 to drive the turntable base 3, and remove the turntable base 3 from the rotating shaft 2. Then the detection personnel places the sample to be prepared into the test tube. After the test tube is prepared, the test tube containing the sample to be prepared is inserted into the connecting tube 7 through the fastening component 6. When the test tube containing the sample to be prepared passes through the fastening component 6, the arc-shaped spring piece 12 in the fastening component 6 is naturally pressed against the movable rod 9, and the pressing plate 10 pushes the movable rod 9 when being squeezed by the test tube containing the sample to be prepared. The movable rod 9 pushes the arc-shaped spring piece 12 that is in contact with each other, and the arc-shaped spring piece 12 is pressed. The pressure deformation becomes flat, so that the arc-shaped spring piece 12 pushes the support plate 13 on the positioning rod 14. Limited by the positioning rod 14, the two ends of the arc-shaped spring piece 12 slide to the two sides of the slide groove 11 with the positioning rod 14 as the center, until the limit of the size of the test tube that can be assembled is reached when one side of the support plate 13 presses against the inner wall of the slide groove 11. After the test tube containing the sample to be prepared is fully inserted into the connecting tube 7, the pressure plates 10 arranged around the mounting ring 8 all press against the side walls of the test tube containing the sample to be prepared, thereby stabilizing the test tube containing the sample to be prepared in the connecting tube 7. The arc-shaped spring piece 12 pushes the movable rod 9 within its own elastic force range to drive the pressure plate 10 to clamp test tubes of different sizes, thereby achieving the purpose of assembling test tubes of different sizes.

[0028] After the test tube is assembled, the inspector holds the fixing ring 5 to drive the fixing column 4 to drive the turntable base 3, and installs the turntable base 3 on the rotating shaft 2. The bottom of the supporting wheel 15 at the bottom of the turntable base 3 is against the annular base 16, and the door panel 17 is closed. When the microwave digestion instrument body 1 is working, the inspector can observe the situation inside the microwave digestion instrument body 1 through the observation window 18. When the support wheel 15 at the bottom of the turntable base 3 rotates, the wheel of the support wheel 15 serves as a support at the edge of the turntable base 3, and rolls on the annular base 16 as the turntable base 3 rotates, so as to achieve the purpose of more stable rotation of the turntable base 3.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A microwave digestion instrument for water quality detection, comprising a microwave digestion instrument body (1), characterized in that: A rotating shaft (2) is detachably mounted on the bottom of the inner wall of the microwave digestion instrument body (1); a turntable base (3) is rotatably connected to the top of the rotating shaft (2); two fixing columns (4) are symmetrically detachably mounted on the top of the turntable base (3); a fixing ring (5) is detachably mounted on the top of the fixing column (4); a plurality of fastening components (6) are evenly arranged on the top of the fixing ring (5); a plurality of connecting pipes (7) are evenly detachably mounted on the top of the microwave digestion instrument body (1); the fastening components (6) include a mounting ring (8); one end of the mounting ring (8) is The mounting ring (8) is connected to the top of the fixing ring (5), and four pairs of through holes are evenly arranged on the inner wall of the mounting ring (8). The through holes of the mounting ring (8) are slidably connected to movable rods (9). A pressure plate (10) is detachably installed on one end of the movable rod (9). A sliding groove (11) is arranged inside the fixing ring (5). An arc-shaped spring piece (12) is abutted on one side of the inner wall of the sliding groove (11). A support plate (13) is detachably installed on the inner side of the arc-shaped spring piece (12). A positioning rod (14) is detachably installed on one side of the sliding groove (11) located on the arc-shaped spring piece (12).

2. A microwave digestion instrument for water quality detection according to claim 1, characterized in that: The height of the fixing column (4) is the same as that of the connecting pipe (7), the diameter of the connecting pipe (7) is the same as that of the mounting ring (8), the inner diameter of the connecting pipe (7) is the same as that of the mounting ring (8), and the top of the connecting pipe (7) is detachably connected to the bottom of the mounting ring (8).

3. A microwave digestion instrument for water quality detection according to claim 1, characterized in that: The cross section of the slide groove (11) is in a "T" shape, the end of the movable rod (9) away from the pressure plate (10) is slidably connected to the inside of the slide groove (11), and the end of the movable rod (9) away from the pressure plate (10) is in contact with the outside of the arc-shaped spring sheet (12).

4. A microwave digestion instrument for water quality detection according to claim 1, characterized in that: Both ends of the arc-shaped spring piece (12) are provided with rounded corners, the inner side of the arc-shaped spring piece (12) is connected to one end of the positioning rod (14), and the positioning rod (14) passes through one end of the arc-shaped spring piece (12) and is connected to one end of the movable rod (9).

5. The microwave digestion instrument for water quality detection according to claim 1, characterized in that: The end of the support plate (13) away from the arc-shaped spring piece (12) is slidably connected to one side of the positioning rod (14); the mounting ring (8), the movable rod (9), the pressure plate (10), the arc-shaped spring piece (12), the support plate (13) and the positioning rod (14) are all made of polypropylene.

6. The microwave digestion instrument for water quality detection according to claim 1, characterized in that: Four support wheels (15) are evenly and detachably mounted on the bottom of the turntable base (3); an annular base (16) is detachably mounted on the bottom of the inner wall of the microwave digestion instrument body (1); the bottom of the support wheel (15) abuts against the top of the annular base (16); a door panel (17) is hinged on one side of the microwave digestion instrument body (1); and an observation window (18) is detachably mounted on one side of the door panel (17).

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