Heating mechanism of nucleic acid extractor

Abstract

The utility model discloses a heating mechanism of a nucleic acid extraction instrument, and relates to the technical field of nucleic acid extraction instruments, the upper surface of a deep hole plate is provided with a hole groove, the inner side of the hole groove is provided with an air outlet hole, the outer side of a heating box is provided with a fixed box, and the upper surface of the fixed box is provided with an exhaust pipe in a penetrating manner; and an air outlet pipe and a connecting pipe are arranged on the two sides of the deep hole plate from left to right correspondingly, a third channel and a first channel are formed in the deep hole plate from left to right correspondingly, and a second channel is formed between the third channel and the first channel in a penetrating mode. External air can be sucked into the fixing box through operation of a draught fan in the fixing box and is heated through a first heating pipe, the heated air enters a first channel through an exhaust pipe and a connecting pipe, and flowing can be achieved through a second channel and a third channel which are communicated with the first channel; and the sample is discharged outwards through the air outlet hole to heat the sample in the hole groove.

Description

Technical Field

[0001] This utility model relates to the field of nucleic acid extraction instrument technology, and in particular to a heating mechanism for a nucleic acid extraction instrument. Background Technology

[0002] A nucleic acid extractor is a laboratory device used to extract DNA or RNA from biological samples. It is commonly used in fields such as molecular biology, genomics, and forensic medicine to extract pure nucleic acids from blood, saliva, tissues, or other biological samples. When extracting samples with a nucleic acid extractor, the samples need to be heated by a heating mechanism to promote certain chemical or enzymatic reactions during the reaction process.

[0003] Chinese patent discloses a heating mechanism for a nucleic acid extractor (authorization announcement number CN221094133U). This patented technology includes a heating chamber, a mounting plate disposed within the heating chamber, a deep-hole plate disposed on the mounting plate, and a first heating assembly. The deep-hole plate has multiple grooves on its bottom wall, and the mounting plate has multiple first sliding grooves on its end face away from the bottom wall of the heating chamber. The first heating assembly includes multiple heating plates, multiple inserts, and a heating element. The inserts are respectively inserted into the multiple first sliding grooves. The heating plates are disposed on the inserts and adapted to the grooves. The heating element is disposed on the mounting plate and connected to the inserts. This application has the effect of facilitating the replacement of broken protrusions and reducing equipment costs.

[0004] However, most existing nucleic acid extractors employ heating methods that only heat the exterior of the deep-well plate. This results in inefficient heat transfer to the samples within the wells, affecting heating performance. For example, the aforementioned prior art uses an external heating method. In practical applications, heating only the exterior of the deep-well plate to heat the samples in the nucleic acid extractor leads to insufficient heat transfer and poor heating efficiency. Therefore, those skilled in the art have provided a heating mechanism for a nucleic acid extractor to address the problems mentioned in the background section. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a heating mechanism for a nucleic acid extractor, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heating mechanism for a nucleic acid extractor, comprising: a heating chamber and a deep-hole plate disposed inside the heating chamber; a second heating tube disposed below the deep-hole plate inside the heating chamber; a heat-conducting plate disposed on the upper surface of the second heating tube; a heat-conducting pad disposed on the upper surface of the heat-conducting plate and on the lower surface of the deep-hole plate; a groove formed on the upper surface of the deep-hole plate; an air vent formed on the inner side of the groove; a fixing box installed on the outer side of the heating chamber; an exhaust pipe extending through the upper surface of the fixing box; an exhaust pipe and a connecting pipe disposed on both sides of the deep-hole plate from left to right; a third channel and a first channel formed inside the deep-hole plate from left to right; and a second channel extending through the third channel and the first channel.

[0007] As a further technical solution of this utility model, the third channel is interconnected with the air outlet pipe, and the connecting pipe is interconnected with the first channel.

[0008] As a further technical solution of this utility model, the second channel is opened in front of and behind the slot, and the air outlet is connected to the second channel.

[0009] As a further technical solution of this utility model, a sealing threaded sleeve is provided on the outside of the connecting pipe, and the sealing threaded sleeve is threadedly connected to the outside of the exhaust pipe.

[0010] As a further technical solution of this utility model, a heating frame is also provided inside the fixed box, and a first heating tube is symmetrically arranged inside the heating frame. A fan is provided on one side of the heating frame inside the fixed box, and an air inlet is provided on the outside of the fixed box.

[0011] As a further technical solution of this utility model, the upper surface of the thermal pad is also symmetrically provided with thermal rods, which are disposed inside the deep hole plate.

[0012] This invention provides a heating mechanism for a nucleic acid extractor, which, compared with the prior art, has the following advantages:

[0013] Beneficial effects:

[0014] 1. The heating mechanism of the nucleic acid extractor designed in this paper draws in external air into the fixed box through the operation of the fan inside the fixed box. The air is heated by the first heating tube and then enters the first channel through the exhaust pipe and connecting pipe. The second and third channels, which are interconnected with the first channel, can be used to achieve flow and exhaust the air out through the air outlet to heat the sample in the well. This effectively improves the heating effect and has good practicality.

[0015] 2. The heating mechanism of the nucleic acid extractor designed in this paper can transfer heat to the heat-conducting plate by energizing the second heating tube, and can also transfer heat to the sample in the well through the contact of the heat-conducting pad with the deep well plate, so as to heat the sample. At the same time, the heat-conducting rod can improve its heat conduction effect, thereby achieving the purpose of heating the sample. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the heating mechanism of a nucleic acid extractor;

[0017] Figure 2 This is a schematic diagram of the heating plate in the heating mechanism of a nucleic acid extractor;

[0018] Figure 3 This is a schematic diagram of the internal structure of the fixing box in the heating mechanism of a nucleic acid extractor;

[0019] Figure 4 This is a schematic diagram of the structure of a heat-conducting rod in the heating mechanism of a nucleic acid extractor;

[0020] Figure 5 This is a schematic diagram of the first channel in the heating mechanism of a nucleic acid extractor.

[0021] In the diagram: 1. Heating box; 2. Fixing box; 21. Exhaust pipe; 22. Connecting pipe; 23. Air outlet; 24. Fan; 25. Heating frame; 251. First heating tube; 26. First channel; 261. Second channel; 262. Third channel; 27. Air outlet pipe; 3. Deep hole plate; 31. Groove; 4. Heat-conducting plate; 41. Second heating tube; 42. Heat-conducting pad; 43. Heat-conducting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides a heating mechanism technical solution for a nucleic acid extractor, comprising: a heating chamber 1 and a deep-hole plate 3 disposed inside the heating chamber 1; a second heating tube 41 disposed below the deep-hole plate 3 inside the heating chamber 1; a heat-conducting plate 4 disposed on the upper surface of the second heating tube 41; a heat-conducting pad 42 disposed on the upper surface of the heat-conducting plate 4 and on the lower surface of the deep-hole plate 3; a groove 31 formed on the upper surface of the deep-hole plate 3; an air vent 23 formed on the inner side of the groove 31; a fixing box 2 installed on the outer side of the heating chamber 1; an exhaust pipe 21 penetrating the upper surface of the fixing box 2; and the deep-hole plate 3 having two sides... From left to right, an exhaust pipe 27 and a connecting pipe 22 are respectively provided. Inside the deep hole plate 3, from left to right, a third channel 262 and a first channel 26 are respectively opened. A second channel 261 is opened between the third channel 262 and the first channel 26. This arrangement utilizes the interconnection of the first channel 26, the second channel 261 and the third channel 262 so that the air heated inside the fixed box 2 enters through the exhaust pipe 21 and the connecting pipe 22 to heat the deep hole plate 3. Furthermore, the sample in the pore 31 can be heated through the exhaust hole 23, effectively improving its heating effect.

[0024] like Figure 5 As shown, the third channel 262 is interconnected with the air outlet pipe 27, the connecting pipe 22 is interconnected with the first channel 26, the second channel 261 is opened in front of and behind the hole groove 31, and the air outlet 23 is interconnected with the second channel 261. This arrangement utilizes the interconnection of the first channel 26, the second channel 261 and the third channel 262 to allow heated air to circulate inside, thereby heating the deep hole plate 3 and heating the sample inside the hole groove 31.

[0025] like Figure 3 As shown, a sealing threaded sleeve is provided on the outside of the connecting pipe 22. The sealing threaded sleeve is threadedly connected to the outside of the exhaust pipe 21. This arrangement utilizes the sealing threaded sleeve to connect the connecting pipe 22 and the exhaust pipe 21 externally, thus achieving the purpose of connecting the connecting pipe 22 and the exhaust pipe 21.

[0026] like Figure 3 As shown, a heating frame 25 is also provided inside the fixed box 2. The heating frame 25 is symmetrically arranged with first heating tubes 251 inside. A fan 24 is provided on one side of the heating frame 25 inside the fixed box 2, and an air inlet is provided on the outside of the fixed box 2. This arrangement allows external air to enter the fixed box 2 through the air inlet using the fan 24, and the air is heated by the first heating tubes 251 after entering, so that it can be subsequently introduced into the deep hole plate 3 for heating.

[0027] like Figure 2 and Figure 4As shown, heat-conducting rods 43 are symmetrically arranged on the upper surface of the heat-conducting pad 42. The heat-conducting rods 43 are arranged inside the deep hole plate 3. This arrangement uses the heat-conducting pad 42 to conduct the heat generated by the heat-conducting plate 4 through the second heating tube 41, and the heat can be transferred to the interior of the deep hole plate 3 through the heat-conducting rods 43.

[0028] The working principle of this utility model is as follows: When using the heating mechanism of the nucleic acid extractor of this utility model, the sample of the nucleic acid extractor is first placed into the groove 31 opened on the upper surface of the deep well plate 3, and after being placed in, the second heating tube 41 is turned on by an external power supply. The heat can be conducted through the heat conduction plate 4 and transferred to the deep well plate 3 through the heat conduction pad 42 to heat the sample in the groove 31. At the same time, the heat conduction rod 43 is set inside the deep well plate 3 to improve its heating effect.

[0029] Simultaneously, by turning on the fan 24 and the first heating tube 251 through an external power source, external air can be drawn into the fixed box 2 through the air inlet, heated by the first heating tube 251, and then enter the first channel 26 through the exhaust pipe 21 and the connecting pipe 22. The second channel 261 and the third channel 262, which are interconnected with the first channel 26, can be used to achieve flow, and the air is discharged outward through the air outlet 23 to heat the sample in the pore 31, effectively improving the heating effect and making it practical.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A heating mechanism of a nucleic acid extractor, characterized by, include: A heating box (1) and a deep hole plate (3) disposed inside the heating box (1). A second heating tube (41) is disposed below the deep hole plate (3) inside the heating box (1). A heat-conducting plate (4) is disposed on the upper surface of the second heating tube (41). A heat-conducting pad (42) is disposed on the lower surface of the deep hole plate (3) on the upper surface of the heat-conducting plate (4). The upper surface of the deep hole plate (3) is provided with a groove (31), and the inner side of the groove (31) is provided with an air outlet (23). A fixed box (2) is installed on the outer side of the heating box (1). An exhaust pipe (21) is provided through the upper surface of the fixed box (2). An air outlet pipe (27) and a connecting pipe (22) are respectively provided on both sides of the deep hole plate (3) from left to right. A third channel (262) and a first channel (26) are respectively provided inside the deep hole plate (3) from left to right. A second channel (261) is provided between the third channel (262) and the first channel (26).

2. The heating mechanism of a nucleic acid extractor according to claim 1, wherein The third channel (262) is connected to the air outlet pipe (27), and the connecting pipe (22) is connected to the first channel (26).

3. The heating mechanism of the nucleic acid extractor according to claim 1, wherein The second channel (261) is opened in front of and behind the slot (31), and the air outlet (23) is connected to the second channel (261).

4. The heating mechanism of the nucleic acid extraction apparatus according to claim 1, wherein The connecting pipe (22) is provided with a sealing threaded sleeve on the outside, and the sealing threaded sleeve is threadedly connected to the outside of the exhaust pipe (21).

5. The heating mechanism of a nucleic acid extractor according to claim 1, wherein The fixed box (2) is also provided with a heating frame (25), and the heating frame (25) is symmetrically provided with a first heating tube (251). A fan (24) is provided on one side of the heating frame (25) inside the fixed box (2), and an air inlet is provided on the outside of the fixed box (2).

6. The heating mechanism of a nucleic acid extraction apparatus according to claim 1, wherein The upper surface of the heat-conducting pad (42) is also symmetrically provided with heat-conducting rods (43), which are located inside the deep hole plate (3).

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