Constant-temperature mechanism for DNA (Deoxyribose Nucleic Acid) extractor

Abstract

The utility model provides a constant temperature mechanism for a DNA extraction instrument, which comprises an extraction instrument main body, an extraction chamber for completing all DNA operations is arranged in the extraction instrument main body, and a front cover is rotatably connected to a front side opening of the extraction chamber; a gantry frame is slidably connected to the interior of the extraction chamber; a temperature adjusting mechanism for keeping the constant temperature in the extraction chamber is arranged in the gantry frame; according to the utility model, by introducing the temperature adjusting mechanism and the temperature control device, accurate control and real-time monitoring of the extracted indoor temperature are realized; the temperature in the extraction chamber can be ensured to be constant and uniformly distributed by adjusting the temperature of the heat-conducting oil, so that the accuracy and the stability of DNA extraction are improved; heat exchange holes and fins are added, so that the heat exchange area and the heat exchange efficiency are obviously improved; therefore, the adjusting speed of the temperature in the extraction chamber is increased, the energy consumption is reduced, and the energy utilization efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of DNA extractors, in particular to a constant temperature mechanism for a DNA extractor. Background Art

[0002] A DNA extractor is one of the key devices in modern molecular biology research and biotechnology fields. It is mainly used to extract pure DNA from biological samples (such as blood, tissues, cells, etc.). This technology is of extremely important significance for fields such as genetic research, disease diagnosis, forensic identification, and bioengineering technology.

[0003] Traditional DNA extraction methods often rely on cumbersome manual operations, which are not only time-consuming and laborious but also easily affected by contamination and errors. With the progress of technology, automated DNA extractors have emerged. By precisely controlling conditions such as temperature, pressure, and centrifugation, they have achieved the automation and standardization of the DNA extraction process, greatly improving the extraction efficiency and accuracy.

[0004] However, despite the significant progress made by automated DNA extractors in technology, they still face some challenges in practical applications. Especially in terms of temperature control, since the DNA extraction process is extremely sensitive to temperature conditions, how to ensure the constancy and uniform distribution of the temperature in the extraction chamber has become one of the key factors affecting the quality and efficiency of DNA extraction. Summary of the Utility Model

[0005] In order to solve the problems existing in the prior art regarding the temperature control of traditional DNA extractors, the utility model provides a constant temperature mechanism for a DNA extractor.

[0006] The constant temperature mechanism for a DNA extractor provided by the utility model adopts the following technical scheme:

[0007] A constant temperature mechanism for a DNA extractor includes an extractor main body. An extraction chamber for completing all DNA operations is arranged inside the extractor main body. A front cover is rotatably connected to the front side opening of the extraction chamber. A gantry frame is slidably connected inside the extraction chamber. A temperature adjustment mechanism for maintaining the constant temperature inside the extraction chamber is arranged inside the gantry frame.

[0008] Furthermore, the gantry frame includes side frames and a top frame. There are two side frames. The top of the two side frames is integrally formed with a top frame. The side frame is a box structure with an open top. The top frame is overall in a "return" shape and has an open top. The inside of the side frame and the top frame are interconnected.

[0009] Further, slide rails are installed at the bottom of the extraction chamber corresponding to the side frames; the two side frames are respectively slidably connected inside the extraction chamber through the slide rails; and a locking structure is arranged in the slide rails for locking the side frames inside the extraction chamber;

[0010] Further, the temperature adjustment mechanism includes a first temperature control pipe, a liquid inlet pipe, a second temperature control pipe, a third temperature control pipe, and a liquid outlet pipe; the first temperature control pipe is installed inside one of the frames through a buckle; one end of the first temperature control pipe is connected to one end of the liquid inlet pipe; the other end of the liquid inlet pipe penetrates through the main body of the extractor and extends to the outside thereof; the second temperature control pipe is connected inside the top frame through a buckle; one end of the second temperature control pipe is connected to the other end of the first temperature control pipe; the other end of the second temperature control pipe is connected to one end of the third temperature control pipe; the third temperature control pipe is installed inside the other side frame through a buckle; the other end of the third temperature control pipe is connected to one end of the liquid outlet pipe; the other end of the liquid outlet pipe penetrates through the main body of the extractor and extends to the outside thereof;

[0011] Further, both the liquid inlet pipe and the liquid outlet pipe are connected to an external temperature control device, and the temperature control device outputs heat-conducting oil to fill the first temperature control pipe, the liquid inlet pipe, the second temperature control pipe, the third temperature control pipe, and the liquid outlet pipe and circulate; a temperature sensor electrically connected to the temperature control device is arranged inside the extraction chamber;

[0012] Further, the overall shapes of the first temperature control pipe and the third temperature control pipe are snake-shaped structures and are evenly distributed inside the side frames; the second temperature control pipe is arranged in a "return" - shaped structure corresponding to the structure of the top frame;

[0013] Further, the first temperature control pipe, the liquid inlet pipe, the second temperature control pipe, the third temperature control pipe, and the liquid outlet pipe are all connected through threaded joints;

[0014] Further, heat exchange holes are formed in the front and rear side walls of the side frames; the number of the heat exchange holes is N, and N≥2;

[0015] Further, fins are respectively welded on the relative outer side walls of the two side frames; the number of the fins is M, and M≥2.

[0016] In summary, the beneficial effects of the present utility model are as follows:

[0017] By introducing the temperature adjustment mechanism and the temperature control device, the present utility model realizes precise control and real-time monitoring of the temperature inside the extraction chamber; by adjusting the temperature of the heat-conducting oil, it can ensure the constancy and uniform distribution of the temperature inside the extraction chamber, thereby improving the accuracy and stability of DNA extraction; in addition, by designing the temperature control pipes with snake-shaped structures and "return" - shaped structures, and increasing the heat exchange holes and fins, the heat exchange area and heat exchange efficiency are significantly improved; this not only speeds up the temperature adjustment speed inside the extraction chamber, but also reduces energy consumption and improves energy utilization efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the overall internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation of the temperature regulating mechanism of this utility model.

[0021] As shown in the figure: 1-Main body of the extractor, 2-Extraction chamber, 3-Front cover, 4-Gantry frame, 41-Side frame, 42-Top frame, 43-Slide rail, 5-First temperature control tube, 51-Inlet pipe, 52-Second temperature control tube, 53-Third temperature control tube, 54-Outlet pipe, 6-Heat exchange hole, 7-Fin. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-3 The present invention will be further described in detail below:

[0023] This utility model discloses a temperature control mechanism for a DNA extraction instrument, such as... Figure 1-3 As shown, a temperature control mechanism for a DNA extractor includes an extractor body 1. An extraction chamber 2 for completing all DNA extraction operations is located inside the extractor body 1. A front cover 3 is rotatably connected to the front opening of the extraction chamber 2. A gantry frame 4 is slidably connected inside the extraction chamber 2. A temperature regulation mechanism for maintaining a constant temperature inside the extraction chamber 2 is located inside the gantry frame 4. In this embodiment, the internal temperature regulation mechanism ensures a constant temperature inside the extraction chamber 2, thereby optimizing the DNA extraction process. The overall structure is compact and rationally designed. The sliding connection of the gantry frame 4 facilitates the installation and maintenance of the temperature regulation mechanism, while ensuring the sealing and temperature control performance of the extraction chamber 2.

[0024] like Figure 1-3As shown in the figure, the gantry frame 4 includes side frames 41 and a top frame 42; there are two side frames 41; the top of the two side frames 41 is integrally formed with the top frame 42; the side frame 41 is a box structure with an open top; the top frame 42 is overall in the shape of a "hui" character and has an open top; the interiors of the side frame 41 and the top frame 42 are interconnected; a slide rail 43 is installed at the bottom of the extraction chamber 2 corresponding to the side frame 41; the two side frames 41 are respectively slidably connected inside the extraction chamber 2 through the slide rail 43; and a locking structure is provided in the slide rail 43 for locking the side frame 41 inside the extraction chamber 2; in this embodiment, the gantry frame 4 serves as the carrier of the temperature adjustment mechanism. Through the combination of the side frame 41 and the top frame 42, a box structure with an open top is formed, and the interiors are interconnected, facilitating the circulation of the heat-conducting medium; the gantry frame 4 slides inside the extraction chamber 2 through the slide rail 43 on the side frame 41 to achieve installation and position adjustment; the locking structure in the slide rail 43 is used to fix the position of the gantry frame 4 to ensure its stability during operation; when the gantry frame 4 slides to the required position, the locking structure is activated to fix the side frame 41 inside the extraction chamber 2 to prevent it from moving;

[0025] It should be noted that the locking structure can be one of a snap fastener, a bolt, or a pin;

[0026] Such as Figure 1-3As shown in the figure, the temperature regulation mechanism includes a first temperature control pipe 5, a liquid inlet pipe 51, a second temperature control pipe 52, a third temperature control pipe 53, and a liquid outlet pipe 54. The first temperature control pipe 5 is installed inside one of the frames by means of a buckle. One end of the first temperature control pipe 5 is connected to one end of the liquid inlet pipe 51. The other end of the liquid inlet pipe 51 penetrates through the extractor main body 1 and extends to the outside thereof. The second temperature control pipe 52 is connected inside the top frame 42 by means of a buckle. One end of the second temperature control pipe 52 is connected to the other end of the first temperature control pipe 5. The other end of the second temperature control pipe 52 is connected to one end of the third temperature control pipe 53. The third temperature control pipe 53 is installed inside the other side frame 41 by means of a buckle. The other end of the third temperature control pipe 53 is connected to one end of the liquid outlet pipe 54. The other end of the liquid outlet pipe 54 penetrates through the extractor main body 1 and extends to the outside thereof. Both the liquid inlet pipe 51 and the liquid outlet pipe 54 are connected to an external temperature control device. The temperature control device outputs heat-conducting oil to fill the first temperature control pipe 5, the liquid inlet pipe 51, the second temperature control pipe 52, the third temperature control pipe 53, and the liquid outlet pipe 54 and circulates. A temperature sensor electrically connected to the temperature control device is provided inside the extraction chamber 2. In this embodiment, the heat-conducting oil enters the first temperature control pipe 5 from the temperature control device through the liquid inlet pipe 51, then flows through the second temperature control pipe 52 and the third temperature control pipe 53 in sequence, and finally returns to the temperature control device through the liquid outlet pipe 54 to form a closed-loop cycle. The temperature sensor continuously monitors the temperature inside the extraction chamber 2 and feeds back the information to the temperature control device. The temperature control device adjusts the temperature of the heat-conducting oil according to the feedback. The design of the temperature regulation mechanism realizes precise constant temperature control of the extraction chamber 2, improves the efficiency and quality of DNA extraction. At the same time, the recycling of the heat-conducting oil also improves the energy utilization efficiency. The temperature sensor continuously monitors the temperature inside the extraction chamber 2 and feeds the data back to the temperature control device. The temperature control device adjusts the temperature of the heat-conducting oil according to the preset temperature range and the feedback of the temperature sensor to maintain a constant temperature inside the extraction chamber 2.

[0027] As Figure 1-3 shown, the first temperature control pipe 5 and the third temperature control pipe 53 are integrally in a serpentine structure and are evenly distributed inside the side frame 41. The second temperature control pipe 52 is set in a "return" - shaped structure corresponding to the structure of the top frame 42. In this embodiment, the first temperature control pipe 5 and the third temperature control pipe 53 adopt a serpentine structure to increase the heat exchange area and improve the heat exchange efficiency. The second temperature control pipe 52 is set in a "return" - shaped structure corresponding to the structure of the top frame 42 to ensure uniform heating or cooling in the top area. The heat-conducting oil flows inside the temperature control pipes. Through the design of the serpentine structure and the "return" - shaped structure, uniform heating or cooling of each area inside the extraction chamber 2 is achieved.

[0028] As Figure 1-3As shown, the first temperature control tube 5, the inlet pipe 51, the second temperature control tube 52, the third temperature control tube 53, and the outlet pipe 54 are all connected by threaded joints. In this embodiment, the pipes are connected together by threaded joints to form a complete heat transfer oil circulation system. The tightness of the threaded joints ensures that the heat transfer oil will not leak during circulation. The connection method of the threaded joints improves the reliability and flexible disassembly of the pipes, ensuring the stable operation and subsequent maintenance of the heat transfer oil circulation system.

[0029] like Figure 1-3 As shown, heat exchange holes 6 are provided on both the front and rear side walls of the side frame 41; the number of heat exchange holes 6 is N, N≥2; fins 7 are welded to the opposite outer side walls of the two side frames 41 respectively; the number of fins 7 is M, M≥2; in this embodiment, the heat exchange holes 6 provided on the front and rear side walls of the side frame 41 increase the heat exchange area and improve the heat exchange efficiency; the design of the fins 7 further increases the heat exchange area and enhances the heat exchange effect; when the heat transfer oil flows in the temperature control pipe, it exchanges heat with the air in the extraction chamber 2 through the heat exchange holes 6 and the fins 7, realizing the heating or cooling of the extraction chamber 2; it accelerates the temperature adjustment speed in the extraction chamber 2, ensuring the smooth progress of the DNA extraction process; at the same time, it also improves energy utilization efficiency and reduces energy consumption.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification 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 the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A constant temperature mechanism for a DNA extraction instrument, comprising an extraction instrument body (1), wherein an extraction chamber (2) for completing all DNA extraction operations is provided inside the extraction instrument body (1), and a front cover (3) is rotatably connected to the front opening of the extraction chamber (2); characterized in that, A gantry frame (4) is slidably connected inside the extraction chamber (2); a temperature regulation mechanism for maintaining a constant temperature inside the extraction chamber (2) is provided inside the gantry frame (4). The gantry frame (4) includes side frames (41) and a top frame (42); there are two side frames (41); the top of the two side frames (41) is integrally formed with a top frame (42); the side frame (41) is a box structure with an open top; the top frame (42) is overall in a "return" shape and has an open top; the inside of the side frame (41) and the top frame (42) communicate with each other. The temperature regulation mechanism includes a first temperature control pipe (5), a liquid inlet pipe (51), a second temperature control pipe (52), a third temperature control pipe (53), and a liquid outlet pipe (54); the first temperature control pipe (5) is installed inside one of the frames by a buckle; one end of the first temperature control pipe (5) is connected to one end of the liquid inlet pipe (51); the other end of the liquid inlet pipe (51) penetrates through the extraction instrument main body (1) and extends to the outside thereof; the second temperature control pipe (52) is connected inside the top frame (42) by a buckle; one end of the second temperature control pipe (52) is connected to the other end of the first temperature control pipe (5); the other end of the second temperature control pipe (52) is connected to one end of the third temperature control pipe (53); the third temperature control pipe (53) is installed inside the other side frame (41) by a buckle; the other end of the third temperature control pipe (53) is connected to one end of the liquid outlet pipe (54); the other end of the liquid outlet pipe (54) penetrates through the extraction instrument main body (1) and extends to the outside. Both the liquid inlet pipe (51) and the liquid outlet pipe (54) are connected to an external temperature control device, and the temperature control device outputs heat-conducting oil to fill the first temperature control pipe (5), the liquid inlet pipe (51), the second temperature control pipe (52), the third temperature control pipe (53), and the liquid outlet pipe (54) and circulate; a temperature sensor electrically connected to the temperature control device is provided inside the extraction chamber (2).

2. The temperature control mechanism for a DNA extractor according to claim 1, characterized in that... Sliding rails (43) are installed at the bottom of the extraction chamber (2) corresponding to the side frames (41); the two side frames (41) are respectively slidably connected inside the extraction chamber (2) through the sliding rails (43); and a locking structure is provided inside the sliding rails (43) for locking the side frames (41) inside the extraction chamber (2).

3. A temperature control mechanism for a DNA extractor according to claim 1, characterized in that... The first temperature control pipe (5) and the third temperature control pipe (53) are overall in a serpentine structure and are evenly distributed inside the side frame (41); the second temperature control pipe (52) is arranged in a "return" shape corresponding to the structure of the top frame (42).

4. A temperature control mechanism for a DNA extractor according to claim 1, characterized in that... The first temperature control pipe (5), the liquid inlet pipe (51), the second temperature control pipe (52), the third temperature control pipe (53), and the liquid outlet pipe (54) are all connected by threaded joints.

5. A temperature control mechanism for a DNA extractor according to claim 1, characterized in that... Heat exchange holes (6) are provided on the front and rear side walls of the side frame (41); the number of the heat exchange holes (6) is N, and N≥2.

6. A temperature control mechanism for a DNA extractor according to claim 1, characterized in that... Fins (7) are respectively welded on the opposite outer side walls of the two side frames (41); the number of the fins (7) is M, and M≥2.

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