A microwave digestion instrument capable of quickly taking and placing samples

Abstract

The utility model relates to experimental apparatus technical field, concretely relates to a microwave digestion appearance of quick sample taking and placing, including host computer and hinged setting in the sealed cover of host computer top surface, the host computer includes heat -proof shell and the microwave generating device of fixed mounting in heat -proof shell inner wall, the heat -proof shell top surface has the opening, the heat -proof shell is installed with lifting digestion jar device.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically to a microwave digestion apparatus that can quickly pick up and place samples. Background Technology

[0002] A microwave digestion system is a laboratory device that uses microwave energy to heat samples and acids (or other solvents) in a sealed container, thereby rapidly and efficiently decomposing (digesting) organic or inorganic samples. It is primarily used to convert solid or complex samples into clear, homogeneous liquid solutions for subsequent elemental analysis (such as atomic absorption spectroscopy, inductively coupled plasma mass spectrometry, etc.). The microwave digestion system consists of a main unit that generates microwaves, containing a detachable digestion vessel. The digestion vessel contains the digestion solution and sample. When placed inside the main unit, the microwaves generated by the main unit are absorbed by the polar molecules in the digestion solution and sample. This causes the polar molecules in the digestion solution and sample to vibrate, rotate, and collide violently in a rapidly changing microwave electromagnetic field, generating a large amount of heat. The high temperature generated by microwave heating causes the digestion solution to react violently, while simultaneously generating high pressure, greatly accelerating the dissolution and oxidative decomposition process of the sample. This results in fast digestion speed, high efficiency, minimal sample loss, and more complete digestion.

[0003] Although the existing technologies mentioned above can solve the corresponding technical problems, they still have certain drawbacks: after the existing microwave digestion apparatus is used, the sample and digestion solution in the digestion vessel will reach 200-300°C due to the microwave effect. Therefore, when it is necessary to remove the digestion vessel after use, it is often necessary to use special tools to remove the digestion vessel. The required tools are more numerous and the operation is more complicated. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a microwave digestion apparatus that is easy to assemble and disassemble, requires no additional tools, and allows for rapid sample handling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a microwave digestion instrument that can quickly pick up and place samples, including a main unit and a sealing cover hinged to the top surface of the main unit. The main unit includes a heat-insulating shell and a microwave generating device fixedly installed on the inner wall of the heat-insulating shell. The top surface of the heat-insulating shell has an opening, and a lifting digestion tank device is installed inside the heat-insulating shell.

[0006] A further improvement is that the bottom surface of the main unit is equipped with a lifting base.

[0007] A further improvement is that a control panel is fixedly installed on the sealing cover.

[0008] A further improvement is that the bottom edge of the sealing cover is provided with a lifting groove.

[0009] A further improvement is that the lifting digestion tank device includes an upward-pushing cylinder fixedly installed at the bottom of the inner wall of the heat-insulating shell and a lifting rod fixedly installed at the top of the upward-pushing cylinder. The top of the lifting rod is detachably equipped with a quick-release digestion tank device through a quick-release structure.

[0010] A further improvement is that the quick-release digestion vessel device includes a crossbar that can be detachably mounted on the top of the lifting rod via a quick-release structure, and an outer expansion ring that fits against the upper surface of the crossbar, with the digestion vessel fixedly mounted on the inner edge of the outer expansion ring.

[0011] A further improvement is that the end of the crossbar near the digestion vessel is also provided with an enlarged block that fits against the outer wall of the digestion vessel.

[0012] A further improvement is that a metal support plate is provided at the end of the crossbar away from the digestion vessel, and several anti-slip protrusions are integrally formed on the metal support plate.

[0013] A further improvement is that the quick-release structure includes a placement block with a slot fixedly installed at the top of the lifting rod and an insert rod integrally formed on the outer wall of the crossbar that can be inserted into the slot of the placement block. The upper surface of the placement block has a slot that can accommodate the crossbar.

[0014] A further improvement is that the inner wall of the placement slot is provided with a silicone pad.

[0015] The beneficial effects of this utility model after adopting the above technical solution are as follows: This utility model uses a quick-release structure to fix the digestion vessel and the crossbar, and uses the crossbar in conjunction with the outer expansion ring on the digestion vessel to support the digestion vessel, so that it can be suspended inside the heat-insulating shell. When in use, the digestion solution and sample are put into the digestion vessel, and then the digestion vessel is placed into the expansion block, so that the bottom surface of the outer expansion ring is in contact with the expansion block. Then, the digestion vessel is supported by the expansion block and the crossbar. Then, the crossbar is fixed to the lifting rod through the quick-release structure. The lowering and pushing cylinder can send the digestion vessel in for digestion. After digestion, the rising and pushing cylinder can lift the digestion vessel and the crossbar together. Then, the hand can touch the metal support plate that is not affected by microwave heating, and the crossbar can be lifted to remove it from the lifting rod. The digestion vessel and the sample contained therein can be taken out at the same time, so that no additional special tools are needed to remove the digestion vessel, and the operation is simple. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the microwave digestion apparatus of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the front cross-section of the main unit of this utility model;

[0019] Figure 3 This is a front view structural schematic diagram of the lifting digestion tank device of this utility model;

[0020] Figure 4 This is a side view cross-section schematic diagram of the quick-release structure of this utility model;

[0021] Figure 5 This is a top view structural diagram of the quick-release digestion tank device of this utility model. Detailed Implementation

[0022] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0023] See Figure 1-5As shown, the technical solution adopted in this specific embodiment is: a microwave digestion apparatus for rapid sample loading and unloading, including a main unit 1 and a sealing cover 2 hinged to the top surface of the main unit 1. The main unit 1 includes a heat-insulating shell 11 and a microwave generating device 12 fixedly installed on the inner wall of the heat-insulating shell 11. The microwave generating device 12 includes a microwave generator and various other electronic devices and power connection components for controlling the microwave generator, all of which are prior art and irrelevant to the improvement points of this application, so they will not be described in detail. The top surface of the heat-insulating shell 11 has an opening, and a lifting digestion tank device 13 is installed inside the heat-insulating shell 11. The lifting digestion tank device 13 includes an upward-pushing cylinder 131 fixedly installed at the bottom of the inner wall of the heat-insulating shell 11 and a top of the upward-pushing cylinder 131 fixedly installed. The lifting rod 132 has a quick-release digestion vessel device 134 detachably mounted on its top end via a quick-release structure. The quick-release digestion vessel device 134 includes a crossbar 31 detachably mounted on the top end of the lifting rod 132 via the quick-release structure, and an outer expansion ring 135 fitted to the upper surface of the crossbar 31. A digestion vessel 133 is fixedly mounted on the inner edge of the outer expansion ring 135. The quick-release structure includes a placement block 21 with a slot fixedly mounted on the top end of the lifting rod 132, and an insert rod 23 integrally formed on the outer wall of the crossbar 31 that can be inserted into the slot of the placement block 21. The upper surface of the placement block 21 has a slot to accommodate the crossbar 31. In use, first open the sealing cover 2 on the top of the main unit 1, and then push the lifting rod 132 upwards using the upward-pushing cylinder 131 of the lifting digestion vessel device 13. The crossbar 31 and the outer expansion ring 135 are lifted upwards by the lifting rod 132. The crossbar 31 can be single or multiple. Multiple crossbars 31 can effectively improve the support stability of the outer expansion ring 135 and the digestion vessel 133, preventing tilting. At this time, the outer expansion ring 135 and the digestion vessel 133 can be lifted to the opening at the top of the heat insulation shell 11. Then, the crossbar 31 can be pulled upwards to disengage the insertion rod 23 at the bottom of the crossbar 31 from the slot of the placement block 21. The crossbar 31 and the digestion vessel 133 can then be removed. The sample and digestion solution can then be placed into the digestion vessel 133. The crossbar 31 is then reinstalled into the placement block 21, and the outer expansion ring 135 and the digestion vessel 133 are placed back onto the crossbar 31. The upward thrust is then lowered. The cylinder 131 lowers the digestion vessel 133 into the heat-insulating outer shell 11, seals the lid 2, and activates the microwave generator 12 (existing technology). The microwave generator 12 generates microwaves to digest the sample inside the digestion vessel 133. After digestion, the upward-pushing cylinder 131 raises the digestion vessel 133 along with the crossbar 31. The crossbar 31, a metal material unaffected by microwave heating, is then accessible by hand, allowing it to be lifted and removed from the placement slot 21 at the top of the lifting rod 132. The digestion vessel 133 and its sample can then be removed simultaneously. Throughout the process, the hands do not directly contact the high-temperature outer surface of the digestion vessel 133, thus eliminating the need for additional special tools when removing the digestion vessel 133.Simple to operate;

[0024] The bottom of the main unit 1 is equipped with a lifting base 4, which helps to raise the bottom of the main unit 1 and improve heat dissipation efficiency during operation.

[0025] A control panel 3 is fixedly installed on the sealing cover 2, which facilitates the control of the microwave generating device 12 through the control panel 3, thereby making the operation simpler.

[0026] The bottom edge of the sealing cover 2 is provided with a lifting groove 5, which makes it easier and less strenuous to open the sealing cover 2 by inserting your hand into the lifting groove 5 and applying upward force when opening the sealing cover 2;

[0027] The end of the crossbar 31 near the digestion vessel 133 is also provided with an enlarged block 32 that fits against the outer wall of the digestion vessel 133. The enlarged block 32 can be a semi-circular structure or a ring structure, which is beneficial to allow the crossbar 31 to contact the digestion vessel 133 and the outer ring 135 over a larger range through the enlarged block 32, resulting in better support and stability.

[0028] The end of the crossbar 31 away from the digestion vessel 133 is also provided with a metal support plate 33. Several anti-slip protrusions are integrally formed on the metal support plate 33, which helps to obtain a larger contact area with the hand when lifting the crossbar 31, thereby making the lifting process more stable and less prone to slipping. In addition, the metal support plate 33 made of metal will not heat up under the action of microwave, making it safe and reliable to use.

[0029] The inner wall of the placement slot 21 is provided with a silicone pad 22, which helps to buffer the pressure on the crossbar 31 through the silicone pad 22, and at the same time prevents the crossbar 31 from slipping after it is installed.

[0030] The accompanying drawings in this application are schematic diagrams intended to facilitate the description of the structure of the microwave digester and are not engineering drawings for production purposes.

[0031] The working principle of this utility model is as follows: When using this utility model, first open the sealing cover 2 on the top of the main unit 1, and push the lifting rod 132 upward using the upward-pushing cylinder 131 of the lifting digestion vessel device 13. The lifting rod 132 then raises the crossbar 31 and the outer expansion ring 135. The crossbar 31 can be single or multiple. Multiple crossbars 31 effectively improve the support stability of the outer expansion ring 135 and the digestion vessel 133, preventing tilting. At this point, the outer expansion ring 135, along with the digestion vessel 133, is lifted above the opening at the top of the heat-insulating shell 11. Then, pull the crossbar 31 upward, causing the insertion rod 23 at the bottom of the crossbar 31 to disengage from the slot of the placement block 21. The crossbar 31, along with the digestion vessel 133, can then be removed. The sample and digestion solution can then be placed into the digestion vessel 133. Finally, the crossbar 31 is reinstalled into the placement block 21. Place the outer expansion ring 135 and the digestion vessel 133 onto the crossbar 31, lower the push cylinder 131, and the digestion vessel 133 will be lowered into the heat-insulating outer shell 11. Cover with the sealing cover 2 and start the microwave generating device 12. The microwave generating device 12 is existing technology. It generates microwaves to digest the sample in the digestion vessel 133. After digestion, raise the push cylinder 131, and the digestion vessel 133 and the crossbar 31 will be lifted. Then, the crossbar 31, which is made of metal material that is not affected by microwave heating, can be touched by hand. The crossbar 31 can be lifted to remove it from the placement slot 21 at the top of the lifting rod 132. The digestion vessel 133 and the sample contained therein can be removed at the same time. Throughout the process, the hands will not directly contact the high-temperature outer surface of the digestion vessel 133, so that no additional special tools are required to remove the digestion vessel 133, making the operation simple.

[0032] This utility model aims to protect the structure of the product. The model numbers of the components are not the focus of this utility model's protection, as they are common technology. Any component on the market that can achieve the functions described above can be used as an option. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A microwave digestion apparatus for rapid sample loading and unloading, comprising a main unit (1) and a sealing cover (2) hinged to the top surface of the main unit (1), wherein the main unit (1) comprises a heat-insulating shell (11) and a microwave generating device (12) fixedly installed on the inner wall of the heat-insulating shell (11), characterized in that: The top surface of the heat insulation shell (11) has an opening, and a lifting digestion tank device (13) is installed inside the heat insulation shell (11).

2. The microwave digestion apparatus for rapid sample handling according to claim 1, characterized in that: The host (1) has a lifting base (4) on its bottom surface.

3. The microwave digestion apparatus for rapid sample handling according to claim 1, characterized in that: A control panel (3) is fixedly installed on the sealing cover (2).

4. The microwave digestion apparatus for rapid sample handling according to claim 1, characterized in that: The sealing cap (2) has a lifting groove (5) at its bottom edge.

5. A microwave digester for rapid sample handling according to claim 1, characterized in that: The lifting digestion vessel device (13) includes an upward push cylinder (131) fixedly installed at the bottom of the inner wall of the heat insulation shell (11) and a lifting rod (132) fixedly installed at the top of the upward push cylinder (131). The top of the lifting rod (132) is detachably equipped with a quick-release digestion vessel device (134) through a quick-release structure.

6. A microwave digester for rapid sample handling according to claim 5, characterized in that: The quick-release digestion vessel device (134) includes a crossbar (31) that is detachably mounted on the top of the lifting rod (132) via a quick-release structure, and an outer expansion ring (135) that is attached to the upper surface of the crossbar (31). The inner edge of the outer expansion ring (135) is fixedly provided with a digestion vessel (133).

7. A microwave digester for rapid sample handling according to claim 6, characterized in that: The end of the crossbar (31) near the digestion vessel (133) is also provided with an enlarged block (32) that fits against the outer wall of the digestion vessel (133).

8. A microwave digester for rapid sample handling according to claim 6, characterized in that: The end of the crossbar (31) away from the digestion tank (133) is also provided with a metal support plate (33), and the metal support plate (33) has several anti-slip protrusions integrally formed on it.

9. A microwave digester for rapid sample handling according to claim 6, characterized in that: The quick-release structure includes a placement block (21) with a slot fixedly installed on the top of the lifting rod (132) and an insert rod (23) integrally formed on the outer wall of the crossbar (31) that can be inserted into the slot of the placement block (21). The upper surface of the placement block (21) has a slot that can accommodate the crossbar (31).

10. A microwave digestion apparatus for rapid sample handling according to claim 9, characterized in that: The inner wall of the placement slot (21) is provided with a silicone gasket (22).

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