CN210514759U - Focusing structure of CCD fluorescence automatic scanner - Google Patents
Focusing structure of CCD fluorescence automatic scanner Download PDFInfo
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- CN210514759U CN210514759U CN201921115810.6U CN201921115810U CN210514759U CN 210514759 U CN210514759 U CN 210514759U CN 201921115810 U CN201921115810 U CN 201921115810U CN 210514759 U CN210514759 U CN 210514759U
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Abstract
The utility model discloses a focusing structure of CCD fluorescence automatic scanner, including image mechanism and focusing mechanism, image mechanism's right-hand member is connected with focusing mechanism's left end, image mechanism is by the CCD camera, the camera lens, biochip, objective table and excitation light source are constituteed, focusing mechanism's outside is provided with the shell, the inner wall of shell rotates through the pivot and has cup jointed first gear, first drive wheel, second gear and second drive wheel, the inner wall middle part of shell rotates and is connected with the main shaft, first lifting gear and second lifting gear have been cup jointed on the main shaft, be provided with the rotation cover between the two, be connected for rotating between rotation cover and the main shaft, the right-hand member of rotation cover is connected with the connecting rod, the right-hand member of connecting rod is connected with spacing post, the right-hand member of spacing post is connected with sliding contact, the lower extreme rotates on the inner. This focusing structure of CCD fluorescence automatic scanner is provided with thick accurate focus and adjusts and the accurate focus of thin adjusts, and the focus is adjusted also more accurately rapidly more.
Description
Technical Field
The utility model relates to a focusing device technical field specifically is a focusing structure of CCD fluorescence automatic scanner.
Background
The motor rotates to drive a series of transmission mechanisms to finally drive the lens to rotate, so that the adjustment of the focal length is a mechanical method for adjusting the focal length, is more efficient and accurate than the common manual method for adjusting the focal length, and is the development direction of the focal length adjustment of the existing CCD fluorescence automatic scanner. But current focus adjustment mechanism only has a focus adjustment yardstick, and there are thin accurate focus spiral and thick accurate focus spiral in the manual regulation focus in the past, and wherein, thick accurate focus spiral is used for finding the focus scope fast, and thin accurate focus spiral is used for accurate focusing afterwards, and this kind of focusing mode still is applicable to mechanized focusing, and this kind of focusing structure of CCD fluorescence automatic scanner is exactly based on this principle design.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a focusing structure of CCD fluorescence automatic scanner has reached the accurate and efficient effect of focal length adjustment.
In order to achieve the above object, the utility model provides a following technical scheme: a focusing structure of a CCD fluorescence automatic scanner comprises an image mechanism and a focusing mechanism, wherein the right end of the image mechanism is connected with the left end of the focusing mechanism.
The imaging mechanism is composed of a CCD camera, a lens, a biochip, an object stage and an excitation light source, the CCD camera is arranged at the upper end of the imaging mechanism, the lens is arranged at the lower end of the CCD camera, the object stage is arranged below the lens, the biochip is loaded at the upper end of the object stage, and the excitation light source is arranged on one side of the lens.
The focusing mechanism consists of a shell, a first gear, a first driving wheel, a second gear, a second driving wheel, a main shaft, a first lifting gear, a second lifting gear, a rotating sleeve, a connecting rod, a limiting column, a sliding contact and an end face cam, wherein the shell is arranged outside the focusing mechanism, the left top end and the left bottom end of the inner wall of the shell are both fixedly connected with a rotating shaft, the bottom end of the rotating shaft at the top end is rotatably sleeved with the first gear, the lower end of the first gear is fixedly connected with the first driving wheel, the top end of the rotating shaft at the bottom end is rotatably sleeved with the second gear, the upper end of the second gear is fixedly connected with the second driving wheel, the bottom end of the middle part of the inner wall of the shell is provided with a motor, the upper end of the motor is rotatably connected with the main shaft, the upper part and the lower part of the main shaft are respectively fixedly sleeved with the first lifting gear and, the rotating sleeve is rotatably connected with the main shaft, the right end of the rotating sleeve is fixedly connected with a connecting rod, the right end of the connecting rod is fixedly connected with a limiting column, the right end of the limiting column is fixedly connected with a sliding contact, and the upper end and the lower end of the right side of the inner wall of the shell are rotatably connected with end cams.
Preferably, the first transmission wheel and the second transmission wheel are both in transmission connection with a transmission belt on the outer side of the lens.
Preferably, the diameters of the first gear and the first transmission wheel are larger than the diameters of the second gear and the second transmission wheel.
Preferably, the lower end of the middle part of the shell is provided with a cylindrical groove, the motor is movably arranged in the cylindrical groove, the upper end of the bottom surface of the cylindrical groove and the bottom end of the motor are fixedly connected with a spring, and the upper end of the main shaft is a telescopic rotating shaft.
Preferably, the end face cam is driven by a driving motor below to rotate, when the lowest point of the inclined concave rail on the end face cam rotates to the left side, the second lifting gear is meshed with the second gear, and when the highest point of the inclined concave rail on the end face cam rotates to the left side, the first lifting gear is meshed with the first gear.
Compared with the prior art, the beneficial effects of the utility model are that:
the focusing structure of the CCD fluorescence automatic scanner achieves the purpose of efficiently and accurately adjusting the focal length by arranging the focusing mechanism. The motor rotates to drive a series of transmission mechanisms to finally drive the lens to rotate, so that the adjustment of the focal length is a mechanical method for adjusting the focal length, is more efficient and accurate than the common manual method for adjusting the focal length, and is the development direction of the focal length adjustment of the existing CCD fluorescence automatic scanner. But current focus adjustment mechanism only has a focus adjustment yardstick, and there are thin accurate focus spiral and thick accurate focus spiral in the manual regulation focus in the past, and wherein, thick accurate focus spiral is used for finding the focus scope fast, and thin accurate focus spiral is used for accurate focusing afterwards, and this kind of focusing mode still is applicable to mechanized focusing, and this kind of focusing structure of CCD fluorescence automatic scanner is exactly based on this principle design. The first gear and the first transmission wheel are equal to a fine focusing screw, the second gear and the second transmission wheel are equal to a coarse focusing screw, switching between the fine focusing screw and the coarse focusing screw is achieved through structures such as a sliding contact and an end face cam, and speed and accuracy of mechanical focusing are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the focusing mechanism of the present invention;
fig. 3 is a schematic view of the structure of the rotating sleeve of the present invention.
In the figure: the device comprises an image mechanism 1, a CCD camera 101, a lens 102, a biochip 103, an object stage 104, an excitation light source 105, a focusing mechanism 2, a shell 201, a first gear 202, a first transmission wheel 203, a second gear 204, a second transmission wheel 205, a main shaft 206, a spring 2061, a first lifting gear 207, a second lifting gear 208, a rotating sleeve 209, a connecting rod 2010, a 2011 limiting column, a 2012 sliding contact and a 2013 end cam.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a focusing structure of a CCD fluorescence automatic scanner comprises an image mechanism 1 and a focusing mechanism 2, wherein the right end of the image mechanism 1 is connected with the left end of the focusing mechanism.
The imaging mechanism 1 is composed of a CCD camera 101, a lens 102, a biochip 103, a stage 104 and an excitation light source 105, the CCD camera 101 is arranged at the upper end of the imaging mechanism 1, the lens 102 is arranged at the lower end of the CCD camera 101, the stage 104 is arranged below the lens 102, the biochip 103 is loaded at the upper end of the stage 104, and the excitation light source 105 is arranged at one side of the lens 102.
The focusing mechanism 2 comprises a shell 201, a first gear 202, a first driving wheel 203, a second gear 204, a second driving wheel 205, a spindle 206, a first lifting gear 207, a second lifting gear 208, a rotating sleeve 209, a connecting rod 2010, a limiting column 2011, a sliding contact 2012 and an end face cam 2013, wherein the shell 201 is arranged outside the focusing mechanism 2, the top end and the bottom end of the left side of the inner wall of the shell 201 are fixedly connected with rotating shafts, the bottom end of the rotating shaft at the top end is rotatably sleeved with the first gear 202, the lower end of the first gear 202 is fixedly connected with the first driving wheel 203, the top end of the rotating shaft at the bottom end is rotatably sleeved with the second gear 204, the upper end of the second gear 204 is fixedly connected with the second driving wheel 205, the first driving wheel 203 and the second driving wheel 205 are both connected with a driving belt outside the lens 102, the diameters of the first gear 202 and the first driving wheel 203 are larger than the diameters of the, used for distinguishing coarse and fine quasi-coke adjustment, a motor is arranged at the bottom end of the middle part of the inner wall of the shell 201, a cylindrical groove is formed at the lower end of the middle part of the shell 201, the motor is movably installed in the cylindrical groove, a spring 2061 is fixedly connected to the upper end of the bottom surface of the cylindrical groove and the bottom end of the motor, a main shaft 206 is rotatably connected to the upper end of the motor, a telescopic rotating shaft is arranged at the upper end of the main shaft 206, a first lifting gear 207 and a second lifting gear 208 are respectively and fixedly sleeved on the upper part and the lower part of the main shaft 206, a rotating sleeve 209 is arranged between the first lifting gear 207 and the second lifting gear 208, the rotating sleeve 209 is rotatably connected with the main shaft 206, a connecting rod 2010 is fixedly connected to the right end of the rotating sleeve 209, a limit column 2011 is fixedly connected to the right end of the connecting rod 2010, a sliding contact 2012 is rotatably connected to the end face of the sliding contact, the end face of the sliding contact 2012 and the ball are connected in the inclined concave rail in a sliding manner, the ball can reduce friction force and improve sliding smoothness, the end face cam 2013 is driven by a driving motor below to rotate, when the lowest point of the inclined concave rail on the end face cam 2013 rotates to the left side, the second lifting gear 208 is meshed with the second gear 204, and when the highest point of the inclined concave rail on the end face cam 2013 rotates to the left side, the first lifting gear 207 is meshed with the first gear 202. The first gear 202 and the first transmission wheel 203 are equivalent to a fine focusing screw, the second gear 204 and the second transmission wheel 205 are equivalent to a coarse focusing screw, and switching between the fine focusing screw and the coarse focusing screw is realized through structures such as a sliding contact 2012 and an end face cam 2013, so that the speed and the accuracy of mechanical focusing are improved. In addition, a single chip microcomputer is fixedly installed on the outer side of the shell 201, and the CCD camera 101, the lens 102, the excitation light source, the motor and the driving motor are all electrically connected with the single chip microcomputer.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
In the using process, when the focal length needs to be adjusted, the motor and the driving motor rotate, the lowest point of the inclined concave rail on the end face cam 2013 rotates to the left side, the second lifting gear 208 is meshed with the second gear 204, the spindle 206 rotates to drive the second lifting gear 208 to rotate, and then the second gear 204 and the second transmission wheel 205 rotate to drive the lens 102 to rotate to perform coarse focusing and focusing adjustment. Then, the driving motor drives the end face cam 2013 to rotate, the highest point of the oblique concave rail on the end face cam 2013 rotates to the left side, the first lifting gear 207 is meshed with the first gear 202, the main shaft 206 rotates to drive the first lifting gear 207 to rotate, and then the first gear 202 and the first transmission wheel 203 rotate to drive the lens 102 to rotate to perform fine focus adjustment.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a focusing structure of CCD fluorescence automatic scanner, includes image mechanism (1) and focusing mechanism (2), its characterized in that: the right end of the image mechanism (1) is connected with the left end of the focusing mechanism;
the image mechanism (1) is composed of a CCD camera (101), a lens (102), a biochip (103), an object stage (104) and an excitation light source (105), the CCD camera (101) is arranged at the upper end of the image mechanism (1), the lens (102) is arranged at the lower end of the CCD camera (101), the object stage (104) is arranged below the lens (102), the biochip (103) is loaded at the upper end of the object stage (104), and the excitation light source (105) is arranged on one side of the lens (102);
the focusing mechanism (2) is composed of a shell (201), a first gear (202), a first driving wheel (203), a second gear (204), a second driving wheel (205), a spindle (206), a first lifting gear (207), a second lifting gear (208), a rotating sleeve (209), a connecting rod (2010), a limiting column (2011), a sliding contact (2012) and an end cam (2013), wherein the shell (201) is arranged outside the focusing mechanism (2), the top end and the bottom end of the left side of the inner wall of the shell (201) are both fixedly connected with a rotating shaft, the first gear (202) is rotatably sleeved at the bottom end of the rotating shaft at the top end, the first driving wheel (203) is fixedly connected at the lower end of the first gear (202), the second gear (204) is rotatably sleeved at the top end of the rotating shaft at the bottom end, the second driving wheel (205) is fixedly connected at the upper end of the second gear (204), the inner wall middle part bottom of shell (201) is provided with the motor, and the upper end of motor is rotated and is connected with main shaft (206), the top and the below of main shaft (206) have fixed cover respectively and have been connected with first lifting gear (207) and second lifting gear (208), be provided with between first lifting gear (207) and second lifting gear (208) and rotate cover (209), rotate and be connected for rotating between cover (209) and main shaft (206), the right-hand member fixedly connected with connecting rod (2010) of rotating cover (209), the spacing post of right-hand member fixedly connected with (2011) of connecting rod (2010), the right-hand member fixedly connected with sliding contact (2012) of spacing post (2011), the inner wall right side lower extreme of shell (201) is rotated and is connected with terminal surface cam (2013).
2. The focusing structure of a CCD fluorescence automatic scanner according to claim 1, characterized in that: the first transmission wheel (203) and the second transmission wheel (205) are both in transmission connection with a transmission belt with the outer side of the lens (102).
3. The focusing structure of a CCD fluorescence automatic scanner according to claim 1, characterized in that: the diameters of the first gear (202) and the first transmission wheel (203) are larger than the diameters of the second gear (204) and the second transmission wheel (205).
4. The focusing structure of a CCD fluorescence automatic scanner according to claim 1, characterized in that: the motor is movably mounted in the cylindrical groove, a spring (2061) is fixedly connected to the upper end of the bottom surface of the cylindrical groove and the bottom end of the motor, and the upper end of the main shaft (206) is a telescopic rotating shaft.
5. The focusing structure of a CCD fluorescence automatic scanner according to claim 1, characterized in that: the end face cam (2013) is driven to rotate by a driving motor below, when the lowest point of the inclined concave rail on the end face cam (2013) rotates to the left side, the second lifting gear (208) is meshed with the second gear (204), and when the highest point of the inclined concave rail on the end face cam (2013) rotates to the left side, the first lifting gear (207) is meshed with the first gear (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921115810.6U CN210514759U (en) | 2019-07-16 | 2019-07-16 | Focusing structure of CCD fluorescence automatic scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921115810.6U CN210514759U (en) | 2019-07-16 | 2019-07-16 | Focusing structure of CCD fluorescence automatic scanner |
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| Publication Number | Publication Date |
|---|---|
| CN210514759U true CN210514759U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921115810.6U Active CN210514759U (en) | 2019-07-16 | 2019-07-16 | Focusing structure of CCD fluorescence automatic scanner |
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| Country | Link |
|---|---|
| CN (1) | CN210514759U (en) |
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- 2019-07-16 CN CN201921115810.6U patent/CN210514759U/en active Active
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