Digestion device for water quality detection

Abstract

The utility model relates to the technical field of water quality detection, and discloses a digestion device for water quality detection, which comprises a rotating shaft rotationally connected to the inner bottom surface of a digestion instrument body and a fixed shaft fixedly connected to the inner top surface of the digestion instrument body, the first clamping assembly is arranged on the fixing shaft and used for clamping the digestion tank, the rotating disc coaxially connected with the bevel gear rotates to drive the threaded pin on the rotating disc to drive the fixing plate to swing along the rotating point of the rotating disc, the effect of reciprocating swing of the digestion tank in the first clamping assembly is achieved, and mixing of mixed liquid in the digestion tank is achieved; according to the present invention, the rotation of the circular base is achieved through the transmission of the planetary gear set, the inner side arc-shaped rack and the outer side arc-shaped rack connected to the base are engaged with the outer gear ring on the second clamping ring so as to achieve the forward and reverse rotation of the digestion tank in the second clamping ring in the horizontal direction, such that the mixing efficiency is improved, and the digestion effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of water quality detection, especially a digestion device for water quality detection. BACKGROUND

[0002] The purpose of water quality detection is to investigate environmental quality, study whether water quality is suitable or usable, investigate water pollution or the degree of pollution, check the efficiency of water treatment process, etc. The test items of water samples and water quality parameters are determined according to the test purpose and the nature of the water sample. The obtained data should be comprehensively evaluated to explain the water quality. Generally, in order to ensure the accuracy of the water quality detection result, the water sample needs to be digested first. The role of digestion is to use an acidic liquid to destroy the organic matter and reducing substances in the water sample at a certain temperature, so that they become part of the measurable portion.

[0003] Traditional digestion devices are divided into microwave digestion instruments and electric heating digestion instruments. The microwave digestion instrument has a much higher heating efficiency than the electric heating digestion instrument due to its structural characteristics. After searching, it was found that the application number "202420245342.9" disclosed a "digestion device for water quality detection", which recorded "a microwave digestion instrument body, a box door hinged to the front of the microwave digestion instrument body, a circular groove formed in the inner bottom of the microwave digestion instrument body, a drive assembly installed in the circular groove, a controller installed on the surface of the microwave digestion instrument body, a digestion tank containing acid liquid and sample water placed on the surface of the placement disc, the digestion tank is clamped by the clamping assembly to improve the stability of the digestion tank placement, the digestion tank clamped by the arc-shaped clamping piece can rotate through the setting of the ball, when the driving motor drives the rotating disc to rotate, the gear cooperates with the annular tooth trace to make the placement disc rotate, and then the digestion tank placed on the top of the placement disc rotates, and then the digestion tank rotates on the surface of the placement disc while the rotating disc rotates, and then the acid liquid and sample water mixing efficiency can be improved through this way". The above-mentioned digestion instrument can improve the acid liquid and sample water mixing efficiency when the digestion tank rotates on the surface of the placement disc while the rotating disc rotates. However, the above-mentioned digestion instrument still has some deficiencies when in use: after the digestion tank is placed in the digestion instrument, the microwave digestion instrument body heats the digestion tank, and the acid liquid and sample water in the sample tube mix in only one direction during the self-rotation process of the digestion tank, which leads to low mixing efficiency of the acid liquid and sample water. Based on this, we propose a digestion device for water quality detection. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is that the acid liquid and sample water in the digestion tank are not uniformly mixed during the heating process of the digestion instrument body, and the mixing efficiency is poor.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a digestion device for water quality detection:

[0006] The microwave digestion instrument body is hinged with a box door on the front surface, and a controller is mounted on the surface of the microwave digestion instrument body.

[0007] A circular groove is opened on the inner bottom surface of the microwave digestion instrument body, and a rotating shaft is vertically connected in the circular groove. The lower end of the rotating shaft is connected with the output shaft of a driving motor mounted in the circular groove, and the upper end of the rotating shaft extends to the inside of the microwave digestion instrument body. A fixed shaft extending downward is vertically mounted on the inner top surface of the microwave digestion instrument body. The fixed shaft is hollow and coaxially sleeved on the outside of the rotating shaft. A bevel gear is coaxially fixedly mounted on the rotating shaft and placed in the fixed shaft. A plurality of rotating shafts are uniformly distributed along the circumference of the fixed shaft and are rotationally connected along the radial direction of the fixed shaft. One end of the rotating shaft extends to the inside of the fixed shaft and is provided with a bevel gear meshing with the bevel gear.

[0008] A plurality of radial rods are uniformly distributed along the circumference of the fixed shaft and are arranged along the radial direction. A first clamping assembly is rotationally connected to the end of the radial rod. The first clamping assembly is used for clamping and fixing the digestion tank. One end of the rotating shaft extending into the microwave digestion instrument body is provided with a reciprocating swing mechanism connected with the first clamping assembly on the corresponding side. The reciprocating swing mechanism is used to drive the first clamping assembly to reciprocally swing the digestion tank clamped therein.

[0009] Preferably, the first clamping assembly comprises a first clamping ring rotationally connected to the end of the radial rod. A plurality of first clamping pins are arranged along the circumference of the first clamping ring. The first clamping pins are arranged along the radial direction and threadedly cooperate with the first clamping ring.

[0010] Preferably, one end of the first clamping pin placed in the central region of the first clamping ring is connected with a rubber protective sleeve.

[0011] Preferably, the reciprocating swing structure comprises a turntable coaxially mounted on one end of the rotating shaft. A radial groove is opened on the outer side of the turntable along the radial direction. The radial groove is in the form of a slot and extends outward from the center of the turntable. A plurality of threaded holes are opened on the inner bottom surface of the radial groove. One of the threaded holes is threadedly engaged with a threaded pin. The other end of the threaded pin is provided with a nut.

[0012] The upper end of the first clamping assembly is connected with a fixed plate. A long hole is opened on the fixed plate. The threaded pin and the long hole are in sliding cooperation. The nut is placed on the side of the fixed plate away from the turntable. The diameter of the nut is greater than the width of the long hole.

[0013] Preferably, the threaded pin is provided with a protective sleeve coaxially sleeved outside the threaded pin, the protective sleeve is in sliding fit with the long hole, and one side of the protective sleeve facing the threaded hole is connected with a spring sleeved outside the threaded pin, and the other end of the spring is in abutment with the inner bottom surface of the radial groove.

[0014] Preferably, the rotating shaft is rotatably connected with a circular base arranged in the circular groove, the rotating shaft is coaxially provided with a sun gear arranged in the circular groove, the lower end of the circular base is provided with an inner ring gear, the rotating shaft is coaxially rotatably connected with a planet carrier, and a plurality of groups of planet gears are vertically rotatably arranged on the planet carrier, and the plurality of groups of planet gears are respectively in meshing engagement with the sun gear and the inner ring gear to form a planetary gear train structure.

[0015] The inner bottom surface of the microwave digestion instrument body is provided with a second clamping assembly on the upper side along the circumferential direction outside the circular groove, the second clamping assembly is used for clamping the digestion tank, the second clamping assembly and the first clamping assembly correspond to each other in the vertical direction, and the second clamping assembly and the circular base are provided with a transmission assembly, the transmission assembly is used for driving the digestion tank on the second clamping assembly to reciprocate in the horizontal direction of the digestion tank when the circular base rotates.

[0016] Preferably, the second clamping assembly comprises a fixed ring arranged on the upper side of the inner bottom surface of the microwave digestion instrument body and corresponding to the first clamping assembly, a second clamping ring is rotatably connected in the fixed ring, a plurality of second clamping pins are arranged on the upper end of the second clamping ring along the circumferential direction of the second clamping ring, and the second clamping pins are arranged in the radial direction and are in threaded fit with the second clamping ring.

[0017] The lower end of the second clamping ring is connected with the transmission assembly.

[0018] Preferably, the transmission assembly comprises an outer ring gear coaxially arranged at the lower end of the second clamping ring.

[0019] The transmission assembly further comprises an inner arc-shaped gear rack group and an outer arc-shaped gear rack group arranged on the inner side of the upper end surface of the circular base, the inner arc-shaped gear rack group comprises a plurality of groups of discontinuous inner arc-shaped gear racks, the inner arc-shaped gear racks are arranged on one side of the second clamping ring close to the center of the circular base, the plurality of groups of inner arc-shaped gear racks are in meshing transmission with the outer ring gear, the outer arc-shaped gear rack group comprises a plurality of groups of discontinuous outer arc-shaped gear racks, the outer arc-shaped gear racks are arranged on one side of the second clamping ring away from the center of the circular base, and the plurality of groups of outer arc-shaped gear racks are in meshing transmission with the outer ring gear.

[0020] The meshing transmission between the meshing of the inner arc-shaped gear rack and the outer ring gear and the meshing of the outer arc-shaped gear rack and the outer ring gear does not interfere with each other.

[0021] Preferably, the box door is provided with an observation window.

[0022] The utility model discloses an embodiment water quality detection is with digestion device and prior art compares, its beneficial effect lies in: including rotation connection in the digestion appearance body bottom surface on the rotating shaft and fixedly connected on the fixed axle of inner top surface, both set, the bevel gear disc on the rotating shaft and the meshing transmission of multiple bevel gears on the fixed axle, set up the first clamping assembly for clamping digestion jar on the fixed axle, utilize the rotation of the turntable of bevel gear coaxial connection, drive the fixed plate swing along its rotation point on its screw pin, realize the reciprocating swing effect of digestion jar in the first clamping assembly, realize the mixing of mixed solution in digestion jar, and the mixing is sufficient, and the mixing efficiency is high, utilizes the transmission of planetary gear set, realizes the rotation of circular base, and the second clamping ring in the second clamping assembly clamps digestion jar, and the rotation of circular base is meshed with the external tooth ring on the second clamping ring through the inside arc gear rack and the outside arc gear rack connected on it, realizes the forward and reverse rotation of digestion jar in the second clamping ring in horizontal direction, makes the mixed liquid in digestion jar interior mix fully, improves the efficiency of mixing, improves digestion effect, and the operation is simple, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the perspective view one of the preferred embodiment of the utility model.

[0024] Figure 2 It is the perspective view two of the preferred embodiment of the utility model.

[0025] Figure 3 It is the front view of the preferred embodiment of the utility model.

[0026] Figure 4 It is the section view of A-A in the front view of the preferred embodiment of the utility model.

[0027] Figure 5 It is the section view of the preferred embodiment of the utility model.

[0028] Figure 6 It is the enlarged view of A in Figure 5 .

[0029] Figure 7 It is the perspective view one of the internal structure of the utility model.

[0030] Figure 8 It is the perspective view two of the internal structure of the utility model.

[0031] Figure 9 It is the perspective view of reciprocating swing structure in the utility model.

[0032] In the figure, 1, microwave digestion instrument body; 2, box door; 3, controller; 4, circular groove; 5, rotating shaft; 6, driving motor; 7, fixed shaft; 8, bevel gear plate; 9, rotating shaft; 10, bevel gear; 11, radial rod; 12, first clamping assembly; 13, reciprocating swing mechanism; 14, first clamping ring; 15, first clamping pin; 16, rubber protective sleeve; 17, rotating disc; 18, radial groove; 19, threaded hole; 20, threaded pin; 21, nut; 22, fixed plate; 23, long hole; 24, protective sleeve; 25, spring; 26, circular base; 27, sun gear; 28, inner ring gear; 29, planet carrier; 30, planetary gear; 31, second clamping assembly; 32, fixed ring; 33, second clamping ring; 34, second clamping pin; 35, outer ring gear; 36, inner side arc-shaped rack; 37, outer side arc-shaped rack; 38, observation window. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0034] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. It should be understood that the terms "first", "second" and the like are used to describe various information in the present application, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information without departing from the scope of the present application.

[0035] As Figures 1-9 shown, example one, the preferred embodiment of the present application, a digestion device for water quality detection, including microwave digestion instrument body 1, the front of microwave digestion instrument body 1 is hinged with box door 2, box door 2 is provided with observation window 38, for observing the digestion of internal sample in the digestion process, the surface of microwave digestion instrument body 1 is installed with controller 3, controller 3 is used to control the microwave heating time in the digestion process of controller 3, controller 3 adopts digital display, numerical control mode, using single-chip microcomputer controller 3 mode, this kind of control mode is more mature, this place will not be expanded to be described;

[0036] The inner bottom surface of the microwave digestion instrument body 1 is provided with a circular groove 4, and the circular groove 4 is vertically rotatably connected with a rotating shaft 5. The lower end of the rotating shaft 5 is connected with the output shaft of a driving motor 6 installed in the circular groove 4. The driving motor 6 is installed on the lower bottom surface of the circular groove 4. The rotating shaft 5 is rotatably connected with the inner bottom surface of the circular groove 4. The lower end of the rotating shaft 5 extends to the inner bottom surface. The driving motor 6 is installed on the lower end. The output shaft of the driving motor 6 is coaxially connected with the rotating shaft 5 for driving the rotating shaft 5 to rotate. The upper end of the rotating shaft 5 extends to the inside of the microwave digestion instrument body 1. The inner top surface of the microwave digestion instrument body 1 is vertically installed with a downward extending fixed shaft 7. The fixed shaft 7 is hollow inside and coaxially sleeved outside the rotating shaft 5. The rotating shaft 5 is coaxially fixedly installed with a bevel gear disc 8 placed in the fixed shaft 7. The bevel gear disc 8 is arranged in the hollow area in the fixed shaft 7. The fixed shaft 7 is uniformly arranged with a plurality of rotating shafts 9 along the circumferential direction. The rotating shafts 9 are rotatably connected along the radial direction of the fixed shaft 7. The rotating shafts 9 are rotatably connected with the side wall of the fixed shaft 7 through bearings. The thickness of the installation position of the rotating shafts 9 can be increased for rotatably installing the rotating shafts 9 so that they are installed at their positions. The rotating shafts 9 are arranged along the radial direction of the fixed shaft 7. One end of the rotating shaft 9 extends to the inside of the fixed shaft 7 and is installed at the end with a bevel gear 10 engaged with the bevel gear disc 8. Through the engagement, the rotation of the bevel gear disc 8 drives a plurality of bevel gears 10 to rotate.

[0037] The fixed shaft 7 is uniformly arranged with a plurality of radial rods 11 along the circumferential direction. The radial rods 11 are arranged below the fixed shaft 7. Each group of the fixed shaft 7 corresponds to a radial rod 11. The end of the radial rod 11 is rotatably connected with a first clamping assembly 12. The first clamping assembly 12 is used for clamping and fixing the digestion tank.

[0038] Specifically, the first clamping assembly 12 includes a first clamping ring 14 rotatably connected with the end of the radial rod 11. The first clamping ring 14 is uniformly arranged with a plurality of first clamping pins 15 along the circumferential direction. The first clamping pins 15 are arranged along the radial direction and are threadedly connected with the first clamping ring 14. By rotating a plurality of first clamping pins 15, the position of the first clamping ring 14 in the radial direction can be adjusted, so that the clamping and unlocking of the digestion tank in the first clamping ring 14 can be realized. One end of the first clamping pin 15 placed in the central area of the first clamping ring 14 is connected with a rubber protective sleeve 16. The rubber protective sleeve 16 is used for protection effect during clamping of the digestion tank.

[0039] One end of the rotating shaft 9 extending to the inside of the microwave digestion instrument body 1 is provided with a reciprocating swing mechanism 13 connected with the corresponding first clamping assembly 12. The reciprocating swing mechanism 13 is used for driving the first clamping assembly 12 to swing reciprocally with the digestion tank clamped in it.

[0040] Specifically, the reciprocating swing structure comprises a rotating disc 17 coaxially mounted at one end of the rotating shaft 9, the rotating disc 17 can synchronously rotate with the rotating shaft 9, the outer side of the rotating disc 17 is provided with a radial groove 18 in the radial direction, the radial groove 18 is in the form of a slot and extends outward along the center of the rotating disc 17, the center of the slot structure at one end of the radial groove 18 coincides with the center of the rotating disc 17, and the other end is arranged at the edge of the rotating disc 17, which is used for adjusting the swing amplitude, a plurality of threaded holes 19 are arranged on the inner bottom surface of the radial groove 18, and one of the threaded holes 19 is screwed with a threaded pin 20, the other end of the threaded pin 20 is provided with a nut 21, and the swing amplitude is adjusted by adjusting the threaded pin 20 at different positions.

[0041] The first clamping assembly 12 is connected with a fixed plate 22, that is, the vertical fixed plate 22 is fixedly connected at the upper end of the first clamping ring 14, the fixed plate 22 is provided with a long hole 23, the threaded pin 20 is in sliding fit with the long hole 23, the nut 21 is arranged on the side of the fixed plate 22 away from the rotating disc 17, the diameter of the nut 21 is greater than the width of the long hole 23, the nut 21 is used for limiting the position of the threaded pin 20 in the long hole 23, the threaded pin 20 is coaxially sleeved with a protective sleeve 24, the protective sleeve 24 is in sliding fit with the long hole 23, and the protective sleeve 24 is used for protecting the threaded pin 20 in the process of sliding fit, one side of the protective sleeve 24 towards the threaded hole 19 is connected with a spring 25 sleeved outside the threaded pin 20, the other end of the spring 25 abuts against the inner bottom surface of the radial groove 18, the spring 25 applies a counteracting force, ensures that the threaded pin 20 is in threaded fit with the threaded hole 19, and the threaded pin 20 will not easily separate in the rotating process, the rotating of the rotating disc 17 drives the threaded pin 20 connected therewith to slide in the long hole 23, thereby driving the fixed plate 22 to rotate along the rotation point, the swing amplitude of the fixed plate 22 along the rotation point is changed by adjusting the position of the threaded pin 20 in the radial direction of the rotating disc 17, thereby driving the first clamping assembly 12 to swing, so that the digestion tank in the first clamping assembly 12 reciprocating swings, and the purpose of shock mixing of the digestion tank is achieved, so that the mixing efficiency is higher. If the threaded pin 20 is moved to the position of the center of the rotating disc 17 for threaded fit, the first clamping assembly 12 will not swing in the process of vibration even if the rotating disc 17 rotates.

[0042] In the embodiment two, on the basis of the embodiment one, the rotating shaft 5 is externally rotatably connected with a circular base 26 arranged in the circular groove 4, the circular base 26 is covered in the circular groove 4, the circular base 26 is rotatably connected with the rotating shaft 5 through a bearing, the rotating shaft 5 is coaxially installed with a sun gear 27 arranged in the circular groove 4, the lower end of the circular base 26 is installed with an inner ring gear 28, the rotating shaft 5 is coaxially rotatably connected with a planet carrier 29, a plurality of groups of planet gears 30 are vertically rotatably arranged on the planet carrier 29, the plurality of groups of planet gears 30 are respectively engaged with the sun gear 27 and the inner ring gear 28 to form a planetary gear system structure, the rotation of the rotating shaft 5 drives the sun gear 27 to rotate, and the inner ring gear 28 and the circular base 26 are driven to rotate through the planetary gear 30 system;

[0043] A second clamping assembly 31 is arranged on the inner bottom surface of the microwave digestion instrument body 1 along the circumference of the circular groove 4, the second clamping assembly 31 is used for clamping the digestion tank, the second clamping assembly 31 and the first clamping assembly 12 correspond one-to-one along the vertical direction, the second clamping assembly 31 includes a fixed ring 32 installed on the inner bottom surface of the microwave digestion instrument body 1 and corresponding to the first clamping assembly 12, a second clamping ring 33 is rotatably connected in the fixed ring 32, a plurality of second clamping pins 34 are arranged on the upper end of the second clamping ring 33 along the circumference thereof, the second clamping pins 34 are arranged along the radial direction and are threadedly matched with the second clamping ring 33, by adjusting the position of the second clamping pin 34 on the second clamping ring 33, the digestion tank is clamped;

[0044] The lower end of the second clamping ring 33 is connected with a transmission assembly, specifically, the transmission assembly includes an outer ring gear 35 coaxially installed on the lower end of the second clamping ring 33;

[0045] The transmission assembly further includes an inner side arc-shaped gear rack group and an outer side arc-shaped gear rack group installed on the inner side of the upper end surface of the circular base 26, the inner side arc-shaped gear rack group includes a plurality of groups of discontinuous inner side arc-shaped gear racks 36, the number of groups of the inner side arc-shaped gear racks 36 is the same as the number of groups of the second clamping assembly 31, the inner side arc-shaped gear racks 36 are arranged on the side of the second clamping ring 33 close to the center of the circular base 26, and the plurality of groups of inner side arc-shaped gear racks 36 are all in meshing transmission with the outer ring gear 35, the outer side arc-shaped gear rack group includes a plurality of groups of discontinuous outer side arc-shaped gear racks 37, the outer side arc-shaped gear racks 37 are arranged on the side of the second clamping ring 33 away from the center of the circular base 26, and the plurality of groups of outer side arc-shaped gear racks 37 are all in meshing transmission with the outer ring gear 35;

[0046] The engagement transmission between the engagement of the inner arc-shaped rack 36 and the outer gear ring 35 and the engagement of the outer arc-shaped rack 37 and the outer gear ring 35 does not interfere with each other, and the rotation of the circular base 26 enables the inner arc-shaped rack 36 and the outer arc-shaped rack 37 to engage with the outer gear ring 35 at different positions of the lower end of the second clamping ring 33, so that the digestion tank in the second clamping assembly 31 rotates reciprocatingly in the forward and reverse directions in the horizontal direction, and the mixed liquid in the digestion tank is fully mixed.

[0047] The working process of the utility model is: the experiment personnel selects the mixing mode according to the mixing mode and method required by the mixed liquid, which is oscillation mixing and reciprocating rotation mixing respectively, when the oscillation mixing mode is required, the digestion tank is placed into the first clamping ring 14 in the first clamping assembly 12, and the first clamping ring 14 is clamped by screwing the first clamping pin 15, the digestion tank after clamping cannot contact the second clamping assembly 31, so as to avoid the influence on subsequent oscillation, the controller 3 is started to drive the motor 6, the motor 6 drives the rotating shaft 5 to rotate, the rotation of the driving shaft drives the bevel gear 8 to drive a plurality of bevel gears 10 to rotate, the rotation of the bevel gear 10 drives the coaxially connected turntable 17 to rotate, the rotation of the turntable 17 drives the threaded pin 20 to slide in the long hole 23, so as to drive the fixed plate 22 to rotate along the rotation point, the position of the threaded pin 20 in the radial direction of the turntable 17 is adjusted, so as to change the oscillation amplitude of the fixed plate 22 along the rotation point, so as to drive the first clamping assembly 12 to oscillate, so that the digestion tank in the first clamping assembly 12 reciprocates, and the purpose of oscillation mixing of the digestion tank is realized, so that the mixing efficiency is higher.

[0048] When the oscillation mixing mode is required, the digestion tank is placed into the first clamping assembly 12 without clamping, and the bottom of the digestion tank is placed into the second clamping ring 33 in the second clamping assembly 31, and the digestion tank is clamped by screwing the second clamping pin 34, after clamping, the threaded pin 20 is adjusted to the position of the center of the turntable 17 for threaded cooperation, so that the first clamping assembly 12 does not oscillate even if the turntable 17 rotates, but with the rotation of the rotating shaft 5, the planetary gear train drives the circular base 26 to rotate, the rotation of the circular base 26 enables the inner arc-shaped rack set and the outer arc-shaped rack set to drive the outer gear ring 35 at the lower end of each second clamping ring 33 to engage, so that the second clamping ring 33 reciprocates in the forward and reverse directions, and the mixed liquid in the digestion tank is fully mixed, the mixing efficiency is improved, and the digestion effect is improved.

[0049] In summary, the utility model discloses a kind of digestion devices for water quality detection, including rotating shaft 5 being connected on the bottom surface in the digestion instrument body and fixed shaft 7 being connected on the inner top surface, both are set, bevel gear 10 on the bevel gear plate 8 on rotating shaft 5 and on fixed shaft 7 meshing transmission, first clamping assembly 12 for clamping digestion tank is provided on fixed shaft 7, using the rotation of the rotating disc 17 of bevel gear 10 coaxial connection, screw pin 20 on it drive fixed plate 22 swing along its rotation point, realize the reciprocating swing effect of digestion tank in first clamping assembly 12, realize the mixing of mixed solution in digestion tank, mix fully, mixed efficiency is high, using the transmission of planetary gear 30 group, realize that circular base 26 is rotated, second clamping ring 33 in second clamping assembly 31 is clamped to digestion tank, the rotation of circular base 26, through the meshing of inside arc rack 36 and outside arc rack 37 being connected on it and the outer gear ring 35 on second clamping ring 33, realize the rotation of digestion tank in second clamping ring 33 in horizontal direction forward and reverse, so that mixed liquid in digestion tank interior mixes fully, improve the efficiency of mixing, improve digestion effect, easy operation, strong practicality.

[0050] The above is only preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can make several improvements and replacement, these improvements and replacement also should be considered as the protection scope of the utility model.

Claims

1. A digestion device for water quality detection, comprising a microwave digestion instrument body (1), characterized in that: The front of the microwave digestion instrument body (1) is hinged with a box door (2), and the surface of the microwave digestion instrument body (1) is provided with a controller (3); The inner bottom surface of the microwave digestion instrument body (1) is provided with a circular groove (4), the circular groove (4) is vertically connected with a rotating shaft (5), the lower end of the rotating shaft (5) is connected with the output shaft of a driving motor (6) installed in the circular groove (4), the upper end of the rotating shaft (5) extends into the microwave digestion instrument body (1), the inner top surface of the microwave digestion instrument body (1) is vertically provided with a downward extending fixed shaft (7), the fixed shaft (7) is hollow and coaxially sleeved on the outside of the rotating shaft (5), the rotating shaft (5) is coaxially fixedly installed with a bevel gear (8) arranged in the fixed shaft (7), the fixed shaft (7) is uniformly provided with a plurality of rotating shafts (9) along the circumference, the rotating shafts (9) are rotationally connected along the radial direction of the fixed shaft (7), one end of the rotating shaft (9) extends into the fixed shaft (7) and is provided at the end with a bevel gear (10) engaged with the bevel gear (8). The fixed shaft (7) is uniformly provided with a plurality of radial rods (11) along the circumference, the end of the radial rod (11) is rotationally connected with a first clamping assembly (12), the first clamping assembly (12) is used for clamping and fixing the digestion tank, one end of the rotating shaft (9) extending into the microwave digestion instrument body (1) is provided with a reciprocating swing mechanism (13) connected with the first clamping assembly (12) of the corresponding side, the reciprocating swing mechanism (13) is used for driving the first clamping assembly (12) to drive the digestion tank clamped therein to reciprocate.

2. The digestion device for water quality detection according to claim 1, characterized in that, The first clamping assembly (12) comprises a first clamping ring (14) rotationally connected to the end of the radial rod (11), a plurality of first clamping pins (15) are arranged along the circumference of the first clamping ring (14), and the first clamping pins (15) are arranged along the radial direction and threadedly matched with the first clamping ring (14).

3. The digestion device for water quality detection according to claim 2, characterized in that, One end of the first clamping pin (15) arranged in the central region of the first clamping ring (14) is connected with a rubber protective sleeve (16).

4. The digestion device for water quality detection according to claim 1, characterized in that, The reciprocating swing structure comprises a rotating disc (17) coaxially installed at one end of the rotating shaft (9), a radial groove (18) is formed in the outer side of the rotating disc (17) along the radial direction, the radial groove (18) is in the form of a notch and extends outward from the center of the rotating disc (17), a plurality of threaded holes (19) are formed in the inner bottom surface of the radial groove (18), one of the threaded holes (19) is screwingly engaged with a threaded pin (20), and the other end of the threaded pin (20) is provided with a nut (21). The upper end of the first clamping assembly (12) is connected with a fixed plate (22), a long hole (23) is formed in the fixed plate (22), the threaded pin (20) is slidably matched with the long hole (23), the nut (21) is arranged on the side of the fixed plate (22) away from the rotating disc (17), and the diameter of the nut (21) is greater than the width of the long hole (23).

5. The digestion device for water quality detection according to claim 4, characterized in that, The threaded pin (20) is coaxially sleeved with a protective sleeve (24), the protective sleeve (24) is in sliding fit with the long hole (23), and the side, facing the threaded hole (19), of the protective sleeve (24) is connected with a spring (25) sleeved outside the threaded pin (20), and the other end of the spring (25) is in abutment with the inner bottom surface of the radial groove (18).

6. The digestion device for water quality detection according to claim 4, characterized in that, The rotating shaft (5) is rotatably connected with a circular base (26) arranged in the circular groove (4), the rotating shaft (5) is coaxially arranged with a sun gear (27) arranged in the circular groove (4), the lower end of the circular base (26) is provided with an inner gear ring (28), the rotating shaft (5) is coaxially rotatably connected with a planet carrier (29), a plurality of groups of planet gears (30) are vertically rotatably arranged on the planet carrier (29), and the plurality of groups of planet gears (30) are respectively in meshing connection with the sun gear (27) and the inner gear ring (28) to form a planetary gear train structure. The inner bottom surface of the microwave digestion instrument body (1) is provided with a second clamping assembly (31) on the upper side along the circumference outside the circular groove (4), the second clamping assembly (31) is used for clamping the digestion tank, the second clamping assembly (31) and the first clamping assembly (12) correspond to each other in the vertical direction, and a transmission assembly is arranged between the second clamping assembly (31) and the circular base (26), the transmission assembly is used for driving the digestion tank on the second clamping assembly (31) to reciprocatingly rotate in the horizontal direction of the second clamping assembly (31) when the circular base (26) rotates.

7. The digestion device for water quality detection according to claim 6, characterized in that, The second clamping assembly (31) comprises a fixed ring (32) arranged on the inner bottom surface of the microwave digestion instrument body (1) and corresponding to the first clamping assembly (12), the fixed ring (32) is rotatably connected with a second clamping ring (33), a plurality of second clamping pins (34) are arranged on the upper end of the second clamping ring (33) along the circumference, and the second clamping pins (34) are arranged in the radial direction and are in threaded fit with the second clamping ring (33). The lower end of the second clamping ring (33) is connected with the transmission assembly.

8. The digestion device for water quality detection according to claim 7, characterized in that, The transmission assembly comprises an outer gear ring (35) coaxially arranged at the lower end of the second clamping ring (33). The transmission assembly further comprises an inner side arc-shaped gear rack group and an outer side arc-shaped gear rack group arranged on the inner side of the upper end surface of the circular base (26), the inner side arc-shaped gear rack group comprises a plurality of groups of discontinuous inner side arc-shaped gear racks (36), the inner side arc-shaped gear racks (36) are arranged on the side, close to the center of the circular base (26), of the second clamping ring (33), and the plurality of groups of inner side arc-shaped gear racks (36) are in meshing transmission with the outer gear ring (35), the outer side arc-shaped gear rack group comprises a plurality of groups of discontinuous outer side arc-shaped gear racks (37), the outer side arc-shaped gear racks (37) are arranged on the side, away from the center of the circular base (26), of the second clamping ring (33), and the plurality of groups of outer side arc-shaped gear racks (37) are in meshing transmission with the outer gear ring (35). The engagement transmission between the engagement of the inner arc-shaped gear rack (36) and the outer gear ring (35) and the engagement of the outer arc-shaped gear rack (37) and the outer gear ring (35) is not interfered with each other.

9. The digestion device for water quality detection according to claim 1, characterized in that, An observation window (38) is arranged on the box door (2).

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