Portable biochip pressing, loading and unloading device

Abstract

The utility model relates to a portable biochip pressing and loading device which comprises a base with a boss arranged in the middle, a first support and a second support which can be subjected to height adjustment and horizontal adjustment are arranged on the two opposite sides of the boss of the base, an annular chip installation frame used for installing a biochip is pivoted to the upper limit of the first support, and the lower limit of the chip installation frame is pivoted to the lower limit of the second support. A pressing plate capable of abutting against the chip mounting frame is pivoted to the second support, a telescopic spring with the two ends correspondingly connected to the pressing plate and the base is arranged at the end, away from the chip mounting frame, of the pressing plate, or a torsional spring is arranged on the pressing plate. The height and the level can be conveniently adjusted only through a mechanical structure, an electric mechanism is not needed, the occupied size is small, the price is low, the performance is stable, and operation is convenient and fast.

Description

Technical Field

[0001] This utility model relates to gene testing equipment, and in particular to a convenient biochip pressing and dispensing device. Background Technology

[0002] Biochips, also known as DNA chips or gene chips, require prolonged pressure during optomechanical inspection. Currently, this sustained pressure is achieved using external cylinders or motors, resulting in a large footprint, complex structure, and high cost. Furthermore, the heat generated by the cylinders and motors during prolonged operation, along with the noise and vibration, negatively impacts the precision of the biochip inspection process. Removing or replacing the biochip requires moving the pressure mechanism externally, which necessitates additional electrical control components and increases the complexity of the software control. Utility Model Content

[0003] To address the shortcomings of existing devices, this invention provides a convenient biochip pressing and dispensing device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a convenient biochip pressing and loading device, including a base with a protrusion in the middle, a first bracket and a second bracket on opposite sides of the protrusion, both of which can be adjusted in height and level, the first bracket is pivotally connected to an annular chip mounting frame for mounting biochips, the second bracket is pivotally connected to a pressing plate that can press against the chip mounting frame, and the pressing plate is provided with a telescopic spring at one end away from the chip mounting frame, the two ends of which are correspondingly connected to the pressing plate and the base, or a torsion spring is provided on the pressing plate.

[0005] Preferably, the boss has a first threaded hole on each of its two opposite side walls, and the first bracket and the second bracket have a waist-shaped through hole at a position corresponding to the first threaded hole. The first bracket and the second bracket are connected to the boss by a first bolt that passes through the waist-shaped through hole and is threaded into the first threaded hole.

[0006] Preferably, the base is provided with a second threaded hole, and the first bracket and the second bracket are each provided with a first through hole at a position corresponding to the second threaded hole. The first bracket and the second bracket are both connected to the base by a second bolt that passes through the first through hole and is connected to the second threaded hole. A wave spring is sleeved on the second bolt.

[0007] Preferably, the base is provided with a positioning hole near the second threaded hole, and a positioning post is installed in the positioning hole. Both the first bracket and the second bracket are provided with a second through hole that can be fitted onto the positioning post.

[0008] Preferably, the first through hole is a countersunk through hole, and the countersunk head of the first through hole is provided with a cylindrical support column coaxial with the first through hole, and the wave spring is sleeved on the outer wall of the support column.

[0009] Preferably, the chip mounting bracket includes an annular top plate and two bottom plates arranged in an L-shape at opposite ends of the bottom surface of the top plate. The top plate is also provided with a baffle on the bottom end of a side wall perpendicular to the two bottom plates, which covers the ends of the two bottom plates. The top plate is pivotally connected to the first bracket on the side wall where the baffle is provided.

[0010] Preferably, the horizontal portion of the base plate has a base plate protrusion at the end away from the baffle.

[0011] Preferably, the top surface of the raised bottom plate has a raised inclined surface at the end away from the baffle.

[0012] Preferably, the top plate has a through hole at a position corresponding to the horizontal portion of the bottom plate.

[0013] Preferably, the pressing plate has an inverted L-shaped structure, the horizontal part of the pressing plate abuts against the chip mounting bracket, the vertical part of the pressing plate is pivotally connected to the second bracket, and the bottom end of the vertical part of the pressing plate extends with a pressing part perpendicular to its vertical part.

[0014] The beneficial effects of this utility model are as follows: This utility model uses a telescopic spring, a pressing plate, and a second bracket to form a lever structure to press and fix the chip mounting frame, or uses a torsion spring to apply torque to the pressing plate to press and fix the chip mounting frame. At the same time, the chip mounting frame is pivotally connected to the first bracket, so it can be flipped upwards to install and remove the biochip. No additional electronic control components are required, which simplifies the structure, makes operation convenient, and avoids the adverse effects of additional electronic control components during biochip inspection. Furthermore, the height and horizontal position of the first and second brackets are adjustable, which allows the biochip to be adjusted to the accurate position. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the bottom structure of the chip mounting bracket according to an embodiment of the present invention;

[0018] Figure 4 This is an embodiment of the present utility model. Figure 3Enlarged structural diagram of A in the middle;

[0019] Component names and serial numbers in the diagram: 1-Base; 10-Boss; 11-Second threaded hole; 12-Positioning hole; 13-Positioning post; 100-First threaded hole; 2-First bracket; 20-Oval through hole; 21-First bolt; 22-First through hole cover; 23-Second bolt; 24-Wave spring; 25-Second through hole; 26-First bracket protrusion; 220-Support column; 260-Top plate mounting hole; 3-Second bracket; 4-Chip mounting bracket; 40-Top plate; 41-Bottom plate; 42-Baffle; 400-Top plate through hole; 401-Top plate protrusion; 402-Protrusion through hole; 410-Bottom plate protrusion; 411-Protrusion slope; 5-Pressing plate; 50-Pressing part; 6-Telescopic spring; 7-Biochip. Detailed Implementation

[0020] To more clearly illustrate the purpose, technical solution, and advantages of the embodiments of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. A clear and complete description will be provided. Obviously, the described embodiments are some, but not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Furthermore, the directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. The use of directional terms is for better and clearer explanation and understanding of this utility model, and is not intended to indicate or imply any necessary orientation of this utility model; therefore, they should not be construed as limitations on this utility model.

[0021] Examples of embodiments of this utility model Figures 1 to 4As shown, a convenient biochip pressing and loading device includes a base 1 with a protrusion 10 in the middle. The base 1 can be square, and the protrusion 10 can also be square, with the protrusion 10 and base 1 integrally formed. The base 1 has a first support 2 and a second support 3 on opposite sides of the protrusion 10, both adjustable in height and level. The first support 2 is located on the rear side of the top surface of the base 1, and the second support 3 is located on the front side of the top surface of the base 1. The protrusion 10 is positioned between the two supports. During use, the first support 2 and the second support 3 can be adjusted to the same height as needed, and both supports can be kept horizontal to prevent tilting of the supports, which could lead to the accumulation of reaction reagents in the biochip and uneven loading. The problem arises in the following: For the height adjustment structure of the first bracket 2 and the second bracket 3, first threaded holes 100 are provided on both opposite side walls of the boss 10. That is, one first threaded hole 100 is provided at each of the left and right ends of the front side wall of the boss 10, and one first threaded hole 100 is also provided at each of the left and right ends of the rear side wall of the boss 10. Correspondingly, oblong through holes 20 are provided on both the first bracket 2 and the second bracket 3 at positions corresponding to the first threaded holes 100. Correspondingly, one oblong through hole 20 is provided at each of the left and right ends of the front side wall of the first bracket 2, and these two oblong through holes correspond to the two first threaded holes 100 on the rear side wall of the boss 10. Similarly, one oblong through hole 20 is provided at each of the left and right ends of the rear side wall of the second bracket 3, and these two oblong through holes 20 correspond to... The two first threaded holes 100 on the front sidewall of the boss 10 correspond to each other. The first bracket 2 and the second bracket 3 are both connected to the boss 10 by first bolts 21 that pass through the oblong through hole 20 and are connected in the first threaded holes 100. In this way, the height of the first bracket 2 and the second bracket 3 can be adjusted by adjusting the relative position of the oblong through hole 20 and the first threaded hole 100. After the height is adjusted, they are connected and fixed by the first bolts 21. For the horizontal adjustment structure of the first bracket 2 and the second bracket 3, the base 1 is provided with second threaded holes 11. One second threaded hole 11 is provided at each of the left and right ends of the front side of the top surface of the base 1 for installing the second bracket 3, and one second threaded hole 11 is provided at each of the left and right ends of the rear side of the top surface of the base 1 for installing the second bracket 3. A first through hole 22 is provided on the first bracket 2 and the second bracket 3 at the position corresponding to the second threaded hole 11. This means that a first through hole 22 is provided on the left and right ends of the top surface of the first bracket 2 and the left and right ends of the top surface of the second bracket 3. The first through hole 22 and the second threaded hole 11 correspond one-to-one. The first bracket 2 and the second bracket 3 are connected to the base 1 by the second bolt 23 in the second threaded hole 11 through the threaded connection of the first through hole 22. A wave spring 24 is sleeved on the second bolt 23. The first bracket 2 and the second bracket 3 are adjusted to be horizontal by turning the second bolt 23. The wave spring 24 ensures the adjustment space of the first bracket 2 and the second bracket 3 and also ensures that the position will not be deformed after adjustment.Regarding the structure of the wave spring 24, the first through hole 22 is a countersunk through hole. The larger diameter part is the countersunk head of the first through hole 22, and the smaller diameter part is the through hole body of the first through hole 22. The countersunk head of the first through hole 22 is provided with a cylindrical support 220 coaxial with the first through hole 22. The diameter of the support 220 is the same as the diameter of the through hole body, and its height is less than the depth of the countersunk head. A groove is formed between the support 220 and the hole wall of the countersunk head. The wave spring 24 is sleeved on the outer wall of the support 220, which means that the wave spring 24 is set in the groove formed between the support 220 and the hole wall of the countersunk head. This facilitates the installation of the wave spring 24 and the adjustment of the horizontal state of the first support 2 and the second support 3. The upper limit of the first support 2 is pivotally connected to an annular chip mounting bracket 4 for mounting the biochip 7. The chip mounting bracket 4 is pivotally connected to the first support 2 and can be flipped up or down relative to the first support 2. When the chip mounting bracket 4 is flipped to a horizontal position towards the first support 2, it is stopped. The ring of the chip mounting bracket 4 exposes the biochip 7 for easy inspection. The second support 3 is pivotally connected to a pressing plate 5 that can press against the chip mounting bracket 4. In use, the pressing plate 5 is first pressed to make it flip away from the first support 2, that is, flip clockwise. Then, the chip mounting bracket 4 containing the biochip 7 is flipped to a horizontal position towards the first support 2, that is, the chip mounting bracket 4 is also flipped clockwise to a horizontal position and stopped. When the pressing plate 5 is released, the pressing plate 5 flips in the opposite direction, that is, flips counterclockwise, and presses against the chip mounting bracket 4 to press and fix the chip mounting bracket 4. The bottom surface of the biochip 7 is pressed against the top surface of the boss 10.The pressing plate 5 has a telescopic spring 6 at one end away from the chip mounting bracket 4, with its two ends correspondingly connected to the pressing plate 5 and the base 1, or a torsion spring on the pressing plate 5. One end of the telescopic spring 6 is connected to the top surface of the base 1, and the other end is connected to the bottom surface of the pressing plate 5. In this way, the telescopic spring 6, the pressing plate 5, and the second bracket 2 form a lever structure. The second bracket 2 constitutes the fulcrum of the lever structure, and the pressing plate 5 forms the crossbar of the lever structure. The end of the pressing plate 5 connected to the telescopic spring 6 is the front end of the pressing plate 5, which constitutes the front end of the lever structure. The end of the pressing plate 5 adjacent to the first bracket 2 is the rear end of the pressing plate 5, which constitutes the rear end of the lever mechanism and is located above the boss 10. Initially, the telescopic spring 6 applies a counterclockwise rotational force to the pressing plate 5. At this time, the rear end of the pressing plate 5 is lower than the horizontal position of the chip mounting bracket 4. Pressing the front end of the pressing plate 5 causes it to rotate clockwise, exposing the top surface of the protrusion 10. The telescopic spring 6 is then further compressed. After the biochip 7 is installed on the chip mounting bracket 4, it is rotated clockwise to a horizontal position. Releasing the pressure on the pressing plate 5 causes it to rotate counterclockwise, and the rear end of the pressing plate 5 presses against the top surface of the chip mounting bracket 4, applying force. Applying downward pressure to the chip mounting bracket 4 clamps it tightly to the top surface of the boss. The required elastic force is obtained by changing the number of springs, the wire diameter, or the length of the springs 6. The pressing plate 5 then uses this elastic force to press the chip mounting bracket 4. For example, two springs 6 can be spaced apart. Alternatively, under the same control principle, a torsion spring can be installed on the pressing plate 5. This torsion spring is mounted on the pivot shaft that connects the pressing plate 5 and the second bracket 3, with its two ends correspondingly connected to the pressing plate 5 and the second bracket 3.

[0022] Further improvements, such as Figure 1 and Figure 2 As shown, a positioning hole 12 is also provided on the base 1 near the second threaded hole 11. A positioning pin 13 is installed in the positioning hole 12. That is, a positioning hole 12 is provided on the left side of the second threaded hole 11 at the front left end and the rear left end of the top of the base 1, and a positioning hole 12 is provided on the right side of the second threaded hole 11 at the front right end and the rear right end of the top of the base 1. A positioning pin 13 is installed in each positioning hole 12. The first bracket 2 and the second bracket 3 are both provided with a second through hole 25 that can be matched and fitted on the positioning pin 13. That is, a second through hole 25 is provided on the left side of the first through hole 22 at the left end of the first bracket 2 and on the right side of the first through hole 22 at the right end of the first bracket 2, and a second through hole 25 is provided on the left side of the first through hole 22 at the left end of the second bracket 3 and on the right side of the first through hole 22 at the right end of the second bracket 3. The positioning pin 13 can be used to first position the first bracket 2 and the second bracket 2 on the base 1, and then their height and horizontal positions can be adjusted.

[0023] Further improvements, such as Figures 1 to 4As shown, the chip mounting bracket 4 includes an annular top plate 40 and two L-shaped bottom plates 41 arranged at opposite ends of the bottom surface of the top plate 40. The top plate 40 also has a baffle 42 on the bottom end of one side wall perpendicular to the two bottom plates 41, which covers the ends of the two bottom plates 41. The annulus of the top plate 40 is square to facilitate the exposure of the biochip 7 for inspection. The bottom plates 41 are L-shaped, with their vertical portion connected to the bottom surface of the top plate 40 and their horizontal portion located below the bottom surface of the top plate 40, forming a groove between them. The base plate 41 is located on the left and right sides of the bottom surface of the top plate 40, with the horizontal portions of the two base plates 41 facing each other. The baffle 42 is located on the rear side of the bottom surface of the top plate 40, blocking the rear end of the base plate 41. At this time, the middle of the front wall of the baffle 42 protrudes backward to form a protrusion. The top plate 40, base plate 41, and baffle 42 are integrally formed. When the pressing and loading device is not in use, the chip mounting bracket 4 is pressed against the pressing plate 5 for easy storage. When in use, the biochip 7 is first installed on the chip mounting bracket 4, that is, the pressing plate 5 is first rotated clockwise, and then the chip is installed. The frame 4 is rotated counterclockwise, exposing the front end (open end) of the slot formed by the horizontal part of the base plate 41 and the bottom surface of the top plate 40. Then, the biochip 7 is inserted into the slot from the front end of the slot formed by the horizontal part of the base plate 41 and the bottom surface of the top plate 40. A gap is formed between the protrusion of the baffle 42 and the rear side wall of the biochip 7, facilitating the removal of the biochip 7 from the chip mounting frame 4. The top plate 40 is pivotally connected to the first support 2 on the side wall where the baffle 42 is located; that is, the top plate 40 is pivotally connected to the first support 2 on its rear side wall. (The pivotal structure is...) On the left and right sides of the rear side wall of the top plate 40, at the same height, the top plate protrusions 401 extend backward respectively. The first bracket 2 is a long strip bracket seat. The first bracket protrusion 26 that can be matched and inserted between the two top plate protrusions 401 extends upward from the middle of the top surface of the bracket seat. The first through hole 22 and the second through hole 25 on the left side of the first bracket 2 and the first through hole 22 and the second through hole 25 on the right side are respectively located on the left and right sides of the first bracket protrusion 26. The waist-shaped through hole 20 is located on the front side wall of the first bracket 2 at the position corresponding to the first bracket protrusion 26.Both top plate protrusions 401 are provided with protruding through holes 402, and the protruding through holes 402 on the two top plate protrusions 401 are coaxial. Top plate mounting holes 260 are provided on the left and right walls of the first bracket protrusion 26. The protruding through holes 402 on the left top plate protrusion 401 and the top plate mounting holes 260 on the left side wall of the first bracket protrusion 26 are coaxial, and the protruding through holes 402 on the right top plate protrusion 401 and the top plate mounting holes 260 on the right side wall of the first bracket protrusion 26 are coaxial. The top plate 40 is pivotally connected to the first bracket 2 using a rotating shaft that passes through the protruding through hole 402 and is inserted into the top plate mounting hole 260. Screws are installed on the rear end face of each top plate protrusion 401 to fix the rotating shaft to the protrusion 401. The top plate 40 is limited by left-right square-extending steps on the front side wall of the first bracket protrusion 26. When the top plate 40 rotates clockwise to a horizontal position, the rear end of the bottom surface of the top plate 40 abuts against the top surface of the steps, preventing further rotation and thus limiting the top plate 40.

[0024] Further improvements, such as Figure 3 and Figure 4 As shown, the horizontal portion of the base plate 41 has a base plate protrusion 410 at the end away from the baffle 42. This protrusion 410 is located at the front end of the slot formed between the horizontal portion of the base plate 41 and the bottom surface of the top plate 40. After the biochip 7 is installed in the slot, it acts as a barrier to prevent the biochip 7 from sliding out. At this time, the top surface of the base plate protrusion 410 has a raised inclined surface 411 at the end away from the baffle 42. The raised inclined surface 411 facilitates the insertion of the biochip 7 into the slot.

[0025] Further improvements, such as Figure 1 and Figure 2 As shown, the top plate 40 is provided with a top plate through hole 400 at a position corresponding to the horizontal part of the bottom plate 41. The top plate through hole 400 makes it convenient to observe whether the biochip 7 is installed in place. At the same time, when the liquid injection port of the biochip 7 is set at the corresponding end, the top plate through hole 400 exposes the end, which facilitates liquid injection.

[0026] Further improvements, such as Figure 1 and Figure 2As shown, the pressing plate 5 has an inverted L-shaped structure. The horizontal part of the pressing plate 5 abuts against the chip mounting bracket 4, and the vertical part of the pressing plate 5 is pivotally connected to the second bracket 3. The bottom end of the vertical part of the pressing plate 5 extends with a pressing part 50 perpendicular to the vertical part, thus forming a Z-shaped structure. The second bracket 3 is also a long strip bracket base. A second bracket protrusion with a flat bottom U-shaped structure extends upward from the middle of the top surface of the bracket base. The opening of the U-shaped structure faces away from the first bracket 2. The first through hole 22 and the second through hole 25 on the left side of the second bracket 3 are connected to the first through hole 22 and the second through hole 25 on the right side. Hole 25 is located on the left and right sides of the second bracket protrusion, and the waist-shaped through hole 20 is located on the front side wall of the second bracket 3 corresponding to the second bracket protrusion. At the same time, connecting posts with a height higher than the height of the second bracket protrusion extend from the opening end of the second bracket protrusion. Connecting post through holes with coaxial center lines are set on the two connecting posts. Press plate mounting holes are set at the same height on the left and right end faces of the vertical part of the pressing plate 5. Then, the pressing plate is pivotally connected to the second bracket by using a rotating shaft that passes through the connecting post through hole and is inserted into the pressing plate mounting hole. At the same time, screws are set on the front end face of the connecting post to fix the rotating shaft to the connecting post.

[0027] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A convenient biochip pressing and dispensing device, characterized in that: The device includes a base with a protrusion in the middle. The base has a first bracket and a second bracket on opposite sides of the protrusion, both of which are adjustable in height and level. The first bracket is pivotally connected to an annular chip mounting bracket for mounting a biochip. The second bracket is pivotally connected to a pressing plate that can press against the chip mounting bracket. The pressing plate has a telescopic spring at one end away from the chip mounting bracket, with its two ends correspondingly connected to the pressing plate and the base, or a torsion spring on the pressing plate.

2. The convenient biochip pressing and dispensing device according to claim 1, characterized in that... The boss has a first threaded hole on each of its two opposite side walls. The first bracket and the second bracket each have an oblong through hole at a position corresponding to the first threaded hole. The first bracket and the second bracket are connected to the boss by a first bolt that passes through the oblong through hole and is connected to the first threaded hole.

3. The convenient biochip pressing and dispensing device according to claim 1, characterized in that... The base is provided with a second threaded hole, and the first bracket and the second bracket are each provided with a first through hole at a position corresponding to the second threaded hole. The first bracket and the second bracket are both connected to the base by a second bolt that passes through the first through hole and is connected to the second threaded hole. A wave spring is sleeved on the second bolt.

4. The convenient biochip pressing and dispensing device according to claim 3, characterized in that... The base is also provided with a positioning hole near the second threaded hole, and a positioning post is installed in the positioning hole. The first bracket and the second bracket are both provided with a second through hole that can be fitted onto the positioning post.

5. The convenient biochip pressing and dispensing device according to claim 3 or 4, characterized in that... The first through hole is a countersunk through hole, and a cylindrical support column coaxial with the first through hole is provided at the countersunk head of the first through hole. The wave spring is sleeved on the outer wall of the support column.

6. The convenient biochip press-to-install device according to claim 1, characterized in that: The chip mounting bracket includes an annular top plate and two L-shaped bottom plates arranged at opposite ends of the bottom surface of the top plate. The top plate also has a baffle on the bottom end of a side wall perpendicular to the two bottom plates, which covers the ends of the two bottom plates. The top plate is pivotally connected to the first bracket on the side wall where the baffle is located.

7. The convenient biochip pressing and dispensing device according to claim 6, characterized in that... The horizontal portion of the base plate has a base plate protrusion at the end furthest from the baffle.

8. The convenient biochip pressing and dispensing device according to claim 7, characterized in that... The top surface of the base plate has a raised inclined surface at the end away from the baffle.

9. The convenient biochip pressing and dispensing device according to claim 6, characterized in that... The top plate has a through hole at a position corresponding to the horizontal part of the bottom plate.

10. The convenient biochip press-and-release device according to claim 1, characterized in that... The pressing plate has an inverted L-shaped structure. The horizontal part of the pressing plate abuts against the chip mounting bracket, and the vertical part of the pressing plate is pivotally connected to the second bracket. The bottom end of the vertical part of the pressing plate extends with a pressing part perpendicular to the vertical part.

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