CN112414986A - A switch cover device and real-time fluorescent PCR analyzer - Google Patents

Abstract

The invention relates to a switch cover device and a real-time fluorescent PCR analyzer. The switch cover device includes a power mechanism, a transmission mechanism and an action mechanism. The power mechanism includes an output shaft; one end of a first rocker in the transmission mechanism is rotatably connected with the output shaft, The other end of the first rocker is rotatably connected with one end of the connecting rod; the cover body in the action mechanism is hinged with the fixed seat, the fixed seat is provided with a limiting hole, one end of the second rocker is fixedly connected with the hinge end of the cover body, and the first The other ends of the two rockers pass through the limiting holes and are rotatably connected with the other ends of the connecting rods. The overall structure of the switch cover device of the present invention is simple and exquisite, easy to implement, and can be conveniently applied to small testing instruments. In addition, through the automatic signal control of the power mechanism, the opening and closing operation of multiple instrument channels can be easily realized, the control is accurate, and the detection efficiency is greatly improved.

Description

A switch cover device and real-time fluorescent PCR analyzer

technical field

The invention relates to the technical field of medical detection equipment, in particular to a switch cover device and a real-time fluorescent PCR analyzer.

Background technique

At present, various reagents are often tested in the medical field. During the testing process, it is necessary to frequently open and close the lid of the kit containing the reagents. However, the common testing institutions in existing medical devices mostly use Manual opening and closing of the cover structure, when the number of instrument channels is large, it is necessary to record the corresponding sample reagent types of the corresponding channels one by one, which is easy to confuse the channel sample types and greatly reduce the detection efficiency.

SUMMARY OF THE INVENTION

In view of this, it is necessary to provide a cover opening and closing device and a real-time fluorescent PCR analyzer to solve the problems of low detection efficiency caused by the slow opening and closing speed of the manual opening and closing cover structure and the confusion caused by manual operation in the prior art.

An embodiment of the present invention provides a switch cover device, comprising:

Powertrain, including output shaft;

The transmission mechanism includes a first rocker and a connecting rod, one end of the first rocker is rotatably connected with the output shaft, and the other end of the first rocker is rotatably connected with one end of the connecting rod;

The action mechanism includes a fixed seat, a second rocker, and a cover. The cover is hinged to the fixed seat. The fixed seat is provided with a limit hole. One end of the second rocker is fixedly connected to the hinged end of the cover. The other end passes through the limiting hole and is rotatably connected with the other end of the connecting rod, so that the second rocker can drive the cover body to rotate relative to the fixed seat to open and close the cover.

In some of the embodiments, a accommodating cavity is opened on the fixing base, and a ring of engaging parts connected end to end protrudes from the surface of the cover facing the fixing base. When the cover is rotated to cover with the fixing base, the engaging parts accommodated in the accommodating cavity.

In some of the embodiments, the surface of the cover facing the fixing seat is further provided with a locking portion protruding, and the locking portion is arranged perpendicular to the surface of the cover. When the cover is rotated to cover the fixing seat, the locking portion and The fixed seat is locked.

In some of the embodiments, the first rocker rotates relative to the connecting rod and the second rocker rotates relative to the connecting rod in the same plane.

In some of these embodiments, the length of the first rocker is equal to the length of the second rocker, and the length of the first rocker is less than the length of the connecting rod.

In some of the embodiments, the first rocker and the connecting rod are rotatably connected through a rotating shaft, the rotating shaft includes a first shaft segment and a second shaft segment, the diameters of the first shaft segment and the second shaft segment are not equal, and the first rocker is on the A first through hole matching with the first shaft section is opened, and a second through hole matching with the second shaft section is opened on the connecting rod.

In some of these embodiments, the diameter of the second shaft segment is greater than the diameter of the first shaft segment.

In some of the embodiments, the first through hole is provided with an internal thread, and the first shaft segment is provided with an external thread matching the internal thread.

In some of the embodiments, a third shaft segment is further provided on the rotating shaft at one end of the second shaft segment away from the first shaft segment, and the diameter of the third shaft segment is larger than that of the second shaft segment, so as to avoid the link between the connecting rod and the second shaft segment. The shaft segment is disengaged.

The embodiment of the present invention also provides a real-time fluorescent PCR analyzer, comprising:

Such as the above-mentioned opening and closing cover device.

In the cover opening and closing device and the real-time fluorescent PCR analyzer provided by the present invention, the output shaft is used to drive the first rocker to rotate, and the rotation of the first rocker is transmitted to the second rocker through the connecting rod, and the second rocker passes through the fixed The limit hole of the seat is rotatably connected with the connecting rod, and the second rocker is fixedly connected with the hinge end of the cover body, so that the hinge end of the cover body rotates relative to the fixed seat under the drive of the second rocker, so as to realize The function of opening or closing the cover, the overall structure is simple and exquisite, easy to realize, and can be easily applied to small testing instruments. In addition, through the automatic signal control of the power mechanism, the opening and closing operation of multiple instrument channels can be easily realized, the control is accurate, and the detection efficiency is greatly improved.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of an opening and closing cover device in an embodiment of the present invention;

2 is an exploded view of the overall structure of the switch cover device in the embodiment of the present invention;

3 is a perspective view of the overall structure of the switch cover device in the first state according to the embodiment of the present invention;

4 is a perspective view of the overall structure of the switch cover device in the second state according to the embodiment of the present invention;

FIG. 5 is a perspective view of the overall structure of the opening and closing cover device in the third state according to the embodiment of the present invention.

Detailed ways

The preferred embodiments of the present invention are specifically described below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present application, and together with the embodiments of the present invention, are used to explain the principles of the present invention, but are not used to limit the scope of the present invention.

Referring to FIG. 1 to FIG. 5 , an embodiment of the present invention provides a cover opening and closing device 10 . The opening and closing cover device 10 includes a power mechanism 100 , a transmission mechanism 200 and an action mechanism 300 .

The power mechanism 100 includes an output shaft 110 . The power mechanism 100 is a mechanism commonly used in the technical field to provide power output, and can convert different energies in nature into mechanical energy to perform work and output through the output shaft 110 . The power mechanism 100 is divided into several categories such as wind machinery, hydraulic machinery and heat engines. In this embodiment, the power mechanism 100 can use a steering gear. The steering gear is a position or angle servo driver, which is suitable for those control systems that require the angle to change continuously and can be maintained. The steering gear mainly includes a circuit board, a drive motor, and a reducer. , position detection components and other components.

The transmission mechanism 200 is used to transmit the power provided by the power mechanism 100 to the action mechanism 300 . The transmission mechanism 200 includes a first rocker 210 and a connecting rod 220 , one end of the first rocker 210 is rotatably connected with the output shaft 110 , and the other end of the first rocker 210 is rotatably connected with one end of the connecting rod 220 . The first rocker 210 is a link rod which can only rock within a certain angle range, such as less than 90 degrees. One end of the first rocker 210 will rotate around the output shaft 110 driven by the output shaft 110 , and the other end of the first rocker 210 is connected to the connecting rod 220 , and the connecting rod 220 will be at the other end of the first rocker 210 . Swing with the push of one end.

The action mechanism 300 is used for opening and closing the cover. The action mechanism 300 includes a fixed seat 310, a second rocker 320 and a cover 330. The cover 330 is hinged to the fixed seat 310. The fixed seat 310 is provided with a limiting hole 311 and an accommodating cavity 312. One end of the second rocker 320 is connected to the cover. The hinged end of the body 330 is fixedly connected, and the other end of the second rocker 320 passes through the limiting hole 311 and is rotatably connected to the other end of the connecting rod 220 , so that the second rocker 320 can drive the cover 330 relative to the fixed seat 310 Rotate so that the cover body 330 cooperates with the accommodating cavity 312 to realize the opening and closing of the cover. In this way, the hinged end of the cover 330 rotates relative to the fixed seat 310 under the driving of the second rocker 320 . By adjusting the position of the second rocker 320 in the limiting hole 311 through the through hole, and by adjusting the rotation angles of the first rocker 210 and the connecting rod 220, the rotation range of the cover 330 on the fixing seat 310 can be adjusted, so as to realize the closing cover or open.

The switch cover device 10 provided by the present invention uses the output shaft 110 to drive the first rocker 210 to rotate, and transmits the rotation of the first rocker 210 to the second rocker 320 through the connecting rod 220, and the second rocker 320 passes through the fixed The limiting hole 311 of the seat 310 is rotatably connected to the connecting rod 220 , and the second rocker 320 is fixedly connected to the hinged end of the cover 330 . In this way, the hinged end of the cover 330 is driven by the second rocker 320 to be fixed with The seat 310 is relatively rotated to realize the function of opening or closing the cover. The overall structure is simple and exquisite, easy to implement, and can be easily applied to small testing instruments. In addition, by performing automatic signal control on the power mechanism 100, the operation of opening and closing the cover of multiple instrument channels can be easily realized, the control is accurate, and the detection efficiency is greatly improved.

The cover body 330 includes a main body 330a and an engaging portion 331 protruding along the surface direction of the main body 330a toward the fixing base 310 . In this embodiment, the main body 330a and the engaging portion 331 are integrally formed. When the cover body 330 is rotated to cover the fixing base 310 , the engaging portion 331 is engaged with the accommodating cavity 312 . Referring to FIGS. 3 to 5 , when the cover body 330 is rotated to different positions on the fixing seat 310 , the opening and closing cover device 10 is in the first state, the second state and the third state respectively. Wherein, in FIG. 3 , the cover body 330 is rotated to abut against the surface of the fixing seat 310 , the accommodating cavity 312 is blocked by the engaging portion 331 , and the cover is in a closed state. In FIG. 4 , the cover body 330 is rotated to be separated from the fixing seat 310 , and the cover body 330 is in the middle position, and the accommodating cavity 312 is partially opened. In FIG. 5 , the cover body 330 is rotated to be completely separated from the fixing seat 310 , and the cover body 330 is at the limit position, and the accommodating cavity 312 is completely opened. When the cover body 330 is rotated to abut against the surface of the fixing seat 310 , the accommodating cavity 312 is blocked by the engaging portion 331 so that external light cannot enter the accommodating cavity 312 .

In some usage scenarios, when the kit is used up and it is no longer necessary to open and close the lid, the lid body 330 and the fixing seat 310 can be locked together. Therefore, in some of the embodiments, the other end of the cover body 330 is provided with a locking portion 332, and the locking portion 332 is perpendicular to the surface of the cover body 330. When the cover body 330 is rotated to cover the fixing seat 310, the locking portion 332 is locked The portion 332 is locked with the fixing base 310 . As for the locking method between the locking portion 332 and the fixing seat 310 , a threaded hole can be opened in the locking portion 332 , and a through hole is formed on the fixing seat 310 at the joint with the locking portion 332 for locking The part 332 is exposed to the outside of the fixing seat 310 . At this time, a screw is provided outside the fixing seat 310 through the through hole on the fixing seat 310 and is locked with the locking part 332 , so that the locking part 332 is fixed with the fixing seat 310 After being connected, the cover body 330 can no longer be opened, which satisfies the usage requirements.

In order to keep the switch cover device 10 in a more stable state during operation, in some embodiments, the first rocker 210 rotates relative to the connecting rod 220 and the second rocker 320 rotates relative to the connecting rod 220 in the same plane . Therefore, the power output by the output shaft 110 is transmitted in the same plane, which will not cause the opening and closing device 10 to be unstable, and the power output by the output shaft 110 will not have unnecessary force components, which also avoids reducing the working efficiency of the opening and closing device. Further, the length of the first rocker 210 is equal to the length of the second rocker 320 , and the length of the first rocker 210 is smaller than the length of the connecting rod 220 . The working state of the power mechanism 100 and the action mechanism 300 can better meet the requirements of opening and closing the cover.

In some of the embodiments, the first rocker 210 and the connecting rod 220 are rotatably connected through a rotating shaft 230 . The rotating shaft 230 includes a first shaft section 231 and a second shaft section 232 , and the diameters of the first shaft section 231 and the second shaft section 232 Not equal, the first rocker 210 has a first through hole 211 that matches the first shaft segment 231 , and the connecting rod 220 has a second through hole 221 that matches the second shaft segment 232 . The diameter of the first through hole 211 matches the first shaft segment 231 , and the diameter of the second through hole 221 matches the second shaft segment 232 , that is, the diameters of the first through hole 211 and the second through hole 221 are also unequal. The first through hole 211 is provided with an internal thread (not shown in the figure), the first shaft segment 231 is provided with a thread, the rotating shaft is provided with an external thread matching the internal thread, and the rotating shaft 230 is connected to the first through the thread. A rocker 210 is fixedly connected, and the second shaft section 232 is an optical axis, that is, the second shaft section 232 is not threaded, so after the rotating shaft 230 is fixedly connected with the first rocker 210, the optical axis of the second shaft section 232 is set The connecting rod 220 is rotatably connected to the first rocker 210 without being locked, and the diameter of the second shaft segment 232 is larger than that of the first shaft segment 231 . In addition, a third shaft section 233 is further provided on the rotating shaft 230 at the end of the second shaft section 232 away from the first shaft section 231. The diameter of the third shaft section 233 is larger than the diameter of the second shaft section 232, so as to prevent the connecting rod 220 from interacting with the first shaft section 231. The second shaft segment 232 is disengaged.

Similarly, the second rocker 320 and the connecting rod 220 are rotatably connected through the rotating shaft 240 , that is, the structure of the rotating shaft 240 and the rotating shaft 230 is similar. The second rocker 320 is rotatable.

Embodiments of the present invention also provide a real-time fluorescent PCR analyzer, which includes the lid opening and closing device 10 as in any of the above-mentioned embodiments. Real-time fluorescent PCR (Polymerase Chain Reaction, polymerase chain reaction) analyzer is an instrument that adds fluorescent genes to the PCR reaction system, uses the accumulation of fluorescent signals to monitor the entire PCR process in real time, and finally quantitatively analyzes the unknown template through the standard curve. . Specifically, as shown in FIG. 1 and FIG. 2 , the analyzer has a mounting base 400 . The mounting base 400 is provided with one or more mounting holes 410 , and the switch cover device 10 is fixedly connected to the analyzer through the mounting holes 410 . . In some embodiments, both the mounting base 400 and the fixing base 310 in the switch cover device 10 may be part of the housing of the analyzer. By arranging the opening and closing cover device 10 in the analyzer, it is convenient to open or close the cover of the analyzer, and the overall structure is simple and exquisite, and is easy to realize. In addition, by performing automatic signal control on the power mechanism 100, the operation of opening and closing the cover of multiple instrument channels can be easily realized, the control is accurate, and the detection efficiency is greatly improved.

To sum up, the cover opening and closing device 10 and the real-time fluorescent PCR analyzer provided by the embodiments of the present invention have a simple and compact overall structure, are easy to implement, and can be easily applied to small detection instruments. In addition, by performing automatic signal control on the power mechanism 100, it is possible to easily realize the opening and closing operations of multiple instrument channels, the control is accurate, and the detection efficiency is greatly improved.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Substitutions should be covered within the protection scope of the present invention.

Claims (10)

1. A switch cover device, characterized in that, comprising: Powertrain, including output shaft; The transmission mechanism includes a first rocker and a connecting rod, one end of the first rocker is rotatably connected with the output shaft, and the other end of the first rocker is rotatably connected with one end of the connecting rod; The action mechanism includes a fixed seat, a second rocker, and a cover, the cover is hinged with the fixed seat, the fixed seat is provided with a limiting hole, and one end of the second rocker is connected to the cover of the cover. The hinged end is fixedly connected, and the other end of the second rocker passes through the limiting hole and is rotatably connected with the other end of the connecting rod, so that the second rocker can drive the cover body relative to the The holder is turned to open and close the cover. 2. The opening and closing cover device according to claim 1, characterized in that, A accommodating cavity is opened on the fixing seat, and a ring of engaging parts connected end to end is protruded from the surface of the cover body facing the fixing seat. When the cover body is rotated to cover the fixing seat, The engaging portion is accommodated in the accommodating cavity. 3. The opening and closing cover device according to claim 2, characterized in that, A locking portion is also protruded from the surface of the cover body facing the fixing seat, and the locking portion is arranged perpendicular to the surface of the cover body. When the cover body is rotated until it is closed with the fixing seat , the locking portion is locked with the fixing seat. 4. The switch cover device according to claim 1, characterized in that, The first rocker rotates relative to the connecting rod and the second rocker rotates relative to the connecting rod in the same plane. 5. The opening and closing cover device according to claim 4, characterized in that, The length of the first rocker is equal to the length of the second rocker, and the length of the first rocker is less than the length of the connecting rod. 6. The opening and closing cover device according to claim 1, characterized in that, The first rocker and the connecting rod are rotatably connected through a rotating shaft, the rotating shaft includes a first shaft segment and a second shaft segment, the diameters of the first shaft segment and the second shaft segment are not equal, and the The first rocker is provided with a first through hole matched with the first shaft segment, and the connecting rod is provided with a second through hole matched with the second axle segment. 7. The opening and closing cover device according to claim 6, characterized in that, The diameter of the second shaft segment is greater than the diameter of the first shaft segment. 8. The opening and closing cover device according to claim 7, characterized in that, An inner thread is formed in the first through hole, and an outer thread matching the inner thread is formed on the first shaft segment. 9. The opening and closing cover device according to claim 7, characterized in that, A third shaft segment is further provided on the rotating shaft at the end of the second shaft segment away from the first shaft segment, and the diameter of the third shaft segment is larger than the diameter of the second shaft segment to avoid the The connecting rod is disengaged from the second shaft segment. 10. A real-time fluorescent PCR analyzer, comprising: The opening and closing cover device according to any one of claims 1 to 9.

Images