CN112901946B

CN112901946B - Fixing device of laser generator

Info

Publication number: CN112901946B
Application number: CN202110246566.2A
Authority: CN
Inventors: 李崇义; 张洁琼; 熊艳丽; 耿钊; 樊壮卿; 王建民; 代晓燕; 郑鸿; 刘宇辉
Original assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Current assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2022-09-13
Anticipated expiration: 2041-03-05
Also published as: CN112901946A

Abstract

The invention discloses a fixing device of a laser generator, which comprises a fixing support, an object carrying platform and a sliding mechanism, wherein the fixing support comprises a base, a supporting rod, a first fixing frame and a second fixing frame, the first fixing frame is used for fixing a laser emitter, the second fixing frame is used for fixing an expansion tube bundle, one end of the first fixing frame and one end of the second fixing frame are movably connected to the supporting rod, the second fixing frame is arranged below the first fixing frame, the base is arranged at the bottom end of the supporting rod, the object carrying platform is rotatably arranged on the base and used for placing a cell culture dish, the sliding mechanism is used for controlling the movement (up and down, left and right as well as front and back) of the object carrying platform, and an emission port of the laser emitter and a light expansion port of the expansion tube bundle are aligned on the same straight line through the first fixing frame and the second fixing frame; the movement of the loading platform in all directions is controlled through the sliding mechanism, so that light emitted by the laser emitter can accurately irradiate the cell culture dish on the loading platform, and the accuracy of detection data is improved.

Description

Fixing device of laser generator

Technical Field

The invention relates to the technical field of laser medical instruments, in particular to a fixing device of a laser generator.

Background

In the irradiation treatment of cells or animal eyeballs in a culture dish by laser, a laser emitter, a tube expansion tube bundle, a carrying platform and the like need to be assembled and fixed firstly, and then the irradiation treatment operation can be carried out. However, no special fixing device is provided in the ordinary operation, the laser emitter, the tube expansion bundle and the object carrying platform are all dispersed independently, the doctor needs to perform temporary assembly, fixing, positioning and alignment every time the doctor uses the device, and the device needs to be detached after the doctor uses the device, so that the operation is complicated; moreover, the assembled device is not firmly fixed, and once being touched by accident, the device is easy to shift, and even can fall off to cause damage. Meanwhile, the temporarily assembled device is unstable in connection, so that the movement displacement of the loading platform is too large, the positioning is inaccurate, and the accuracy of detection data is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a fixing device of a laser generator, which solves the problems that the positioning is inaccurate and the accuracy of detection data is influenced due to the fact that the movement displacement of the existing carrying platform is too large.

In order to realize the technical effects, the technical scheme adopted by the invention is as follows:

a fixing device of a laser generator, comprising:

the fixed support comprises a base, a supporting rod, a first fixed frame and a second fixed frame, the first fixed frame is used for fixing the laser emitter, the second fixed frame is used for fixing the expanded beam, one end of the first fixed frame and one end of the second fixed frame are both movably connected to the supporting rod, the second fixed frame is arranged below the first fixed frame, and the base is arranged at the bottom end of the supporting rod;

the carrying platform is rotatably arranged on the base and used for placing a cell culture dish, the carrying platform comprises a top plate and a box body, the top plate is slidably arranged on the box body, the box body comprises an upper cavity and a lower cavity, and the open ends of the upper cavity and the lower cavity are oppositely arranged and are in butt joint; and

the sliding mechanism is used for controlling the up-down, left-right and front-back movement of the loading platform, and comprises a lifting assembly, a front-back assembly and a left-right assembly, wherein the lifting assembly is arranged in the box body and used for controlling the up-down movement of the upper cavity relative to the lower cavity, and the front-back assembly and the left-right assembly are arranged on the top plate and are respectively used for controlling the front-back movement and the left-right movement of the top plate.

Above-mentioned laser generator's fixing device is through first mount and second mount fixed laser emitter of centre gripping respectively and expand the light beam, through the displacement and the moving direction (from top to bottom, about and around) of slide mechanism control roof, makes the accurate removal of the cell culture dish of placing on the roof to the position that laser shines, avoids the inaccurate accuracy that leads to influencing the measured data in location.

Furthermore, the lifting component comprises a first rotating shaft, a second rotating shaft, a first gear, a lifting rack, a first bevel gear, a second bevel gear, a lifting piece and a first fixing piece, the top end of the first fixing piece is connected to the top wall in the upper cavity, the bottom end of the first fixing piece extends to the interior of the lower cavity, the first rotating shaft can rotatably penetrate through one side wall of the lower cavity and is rotatably connected with the first fixing piece, the second rotating shaft can rotatably penetrate through the lower cavity and is rotatably connected with the first fixing piece relative to the other side wall, the first rotating shaft and the second rotating shaft are respectively positioned on two opposite sides of the first fixing piece, the first gear is fixedly sleeved on the outer side of the first rotating shaft, the lifting rack is slidably arranged on the inner top wall of the upper cavity through the second fixing piece, the first gear is meshed with the lifting rack, the first bevel gear is fixedly sleeved on the outer side of the second rotating shaft, the second bevel gear is connected with the inner top wall of the upper cavity through the lifting piece, and the first bevel gear is meshed with the second bevel gear. The height of the upper cavity is roughly adjusted by rotating the first rotating shaft, and the height of the upper cavity is finely adjusted by rotating the second rotating shaft.

Furthermore, the first fixing part comprises a first fixing plate, the top end of the first fixing plate is connected to the middle of the top wall of the upper cavity, a first rotating groove and a second rotating groove are formed in two opposite sides of the bottom of the first fixing plate respectively, the end portion, located in the lower cavity, of the first rotating shaft is inserted into the first rotating groove and is connected with the first fixing plate in a rotating mode, and the end portion, located in the lower cavity, of the second rotating shaft is inserted into the second rotating groove and is connected with the first fixing plate in a rotating mode. The first fixing plate is arranged to support the ends of the first rotating shaft and the second rotating shaft inside the lower cavity, and meanwhile, the occupied space of the lifting assembly in the box body is saved, and mutual interference is avoided.

Further, the second mounting includes second fixed plate and baffle, the top of second fixed plate and the interior roof fixed connection of epicoele, and the lift spout of T shape structure is seted up to the side of second fixed plate, and the baffle setting is in the bottom of second fixed plate for seal the lift spout, lift rack slidable sets up in the lift spout. The lifting rack is fixedly supported through the second fixing plate, so that the first gear can drive the lifting rack to move up and down; the setting of baffle can block lifting rack and drop from the lift spout.

Further, the guide way has all been seted up to the top surface four corners department of lower chamber, and the four corners department of epicoele bottom surface all is equipped with the guide post, and the guide post can insert in the guide way and sliding connection. Through the sliding of the guide post in the guide groove, the upper cavity does not deviate when moving up and down relative to the lower cavity, and the guide function is achieved.

Further, the lifting piece comprises a threaded pipe, a third threaded rod and a U-shaped frame, the opening end of the U-shaped frame is fixedly connected to the top wall of the inner portion of the upper cavity, the threaded pipe is located on the inner side of the U-shaped frame, the top end of the threaded pipe is fixedly connected with the top wall of the inner portion of the upper cavity, the top end of the third threaded rod is inserted into the bottom end of the threaded pipe and is in threaded connection with the bottom wall of the upper cavity, a through hole communicated with the inner side is formed in the closed end of the U-shaped frame, and the top end of the second bevel gear penetrates through the bottom end of the through hole and is fixedly connected with the bottom end of the third threaded rod. The third screw rod is driven to rotate through the second bevel gear, and the height of the third screw rod is fixed and unchanged, so that the threaded pipe moves upwards relative to the third screw rod, and the upper cavity is jacked.

Further, two parallel gear grooves communicated with the inside are formed in the top surface of the upper cavity, the front assembly and the rear assembly comprise a third rotating shaft, a fourth rotating shaft, a third gear, a fourth gear, a first front rack, a second rear rack, a third rotating shaft and a fourth rotating shaft, the third rotating shaft and the fourth rotating shaft are both located inside the upper cavity, two ends of the third rotating shaft and two ends of the fourth rotating shaft are both rotatably connected with the inner side wall of the upper cavity relatively, the first front rack, the second front rack, the third gear, the third rotating shaft, the fourth gear, the third gear, the fourth gear, a protruding gear groove of the third gear, the first front rack, the second front rack, the fourth gear, another protruding gear groove of the fourth gear, the second front rack, the second rack, the third gear, the fourth gear, the third gear, the fourth gear, the third gear, the fourth gear, the third gear, the fourth gear, the third gear, the. The top plate is roughly adjusted in the front-back direction by rotating the third rotating shaft, and the top plate is finely adjusted in the front-back direction by rotating the fourth rotating shaft.

Further, the width of the first front and rear racks is larger than that of the third gear, the width of the second front and rear racks is larger than that of the fourth gear, and the number of teeth on the first front and rear racks is 2-4 times that of the second front and rear racks.

Further, control the subassembly and include first threaded rod, the second threaded rod, dead lever and two fixed plates, the relative both sides face of fixed setting in the epicoele respectively of the one end of two fixed plates, wear to establish the hole has been seted up to the side of roof, wear to establish the relative both sides face that the hole runs through the roof, the fixed cover of dead lever is established in wearing to establish the hole, thick screw hole has been seted up along its axis direction to the one end of dead lever, thin screw hole has been seted up along its axis direction to the other end of dead lever, the one end of first threaded rod inserts in the thick screw hole and threaded connection, the one end rotation that the epicoele was kept away from to the other end of first threaded rod and a fixed plate is connected, the one end rotation that the epicoele was kept away from to the other end of second threaded rod and another fixed plate is connected. The top plate is roughly adjusted in the left-right direction by rotating the first threaded rod, and finely adjusted in the left-right direction by rotating the second threaded rod.

The invention has the beneficial effects that: this laser generator's fixing device is through first mount and second mount fixed laser emitter of centre gripping respectively and expand the light beam, through the displacement and the moving direction (from top to bottom, about and around) of slide mechanism control roof, makes the accurate removal of the cell culture dish of placing on the roof to the position that laser shines to the displacement of accurate control roof avoids the inaccurate accuracy that leads to influencing the measured data in location.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a left side view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

FIG. 4 is a schematic view of the lifting assembly;

FIG. 5 is a top view of the carrier platform;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a cross-sectional view of C-C of FIG. 5;

FIG. 8 is a cross-sectional view taken along line D-D of FIG. 5;

reference numerals:

10-a fixed support, 11-a base, 12-a support rod, 13-a first fixed frame, 14-a second fixed frame, 20-an object carrying platform, 21-a top plate, 22-an upper chamber, 221-a guide post, 222-a gear groove, 23-a lower chamber, 231-a guide groove, 30-a lifting component, 31-a first rotating shaft, 32-a second rotating shaft, 33-a first gear, 34-a lifting rack, 35-a first conical gear, 36-a second conical gear, 37-a lifting component, 371-a threaded pipe, 372-a third threaded rod, 373-a U-shaped frame, 40-a front and back component, 41-a third rotating shaft, 42-a fourth rotating shaft, 43-a third gear, 44-a fourth gear, 45-a first front and back rack and a second front rack, 46-a second front and back rack, 50-left and right components, 51-first threaded rod, 52-second threaded rod, 53-fixed rod, 531-coarse threaded hole, 532-fine threaded hole, 54-third fixed plate, 541-fixed hole, 60-first fixing piece, 61-first fixed plate, 62-first rotary groove, 63-second rotary groove, 70-second fixing piece, 71-second fixed plate, 72-baffle, 73-lifting sliding groove and 80-laser power density detector.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate and imply that the positions or elements referred to must have particular orientations, be constructed and operated in particular ways, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1 and 2, the fixing device of a laser generator provided by the present invention includes a fixing bracket 10, an object stage 20 and a sliding mechanism, the fixing bracket 10 includes a base 11, a supporting rod 12, a first fixing frame 13 and a second fixing frame 14, the first fixing frame 13 is used for fixing a laser emitter, the second fixing frame 14 is used for fixing an expanded tube bundle, one end of the first fixing frame 13 and one end of the second fixing frame 14 are both movably connected to the supporting rod 12, the second fixing frame 14 is disposed below the first fixing frame 13, the base 11 is disposed at the bottom end of the supporting rod 12, and an emission opening of the laser emitter and a light expansion opening of the expanded tube bundle are aligned on a straight line through the first fixing frame 13 and the second fixing frame 14; the rotatable setting of cargo platform 20 is on base 11 for place the cell culture dish, and slide mechanism is used for controlling cargo platform 20 about, about and the removal of front and back, through removing cargo platform 20, makes the accurate cell culture dish that shines on cargo platform 20 of the light that laser emitter launches.

Referring to fig. 3, the carrier platform 20 includes a top plate 21 and a box body, the top plate 21 is slidably disposed on the box body, the box body includes an upper chamber 22 and a lower chamber 23, and open ends of the upper chamber 22 and the lower chamber 23 are oppositely disposed and connected in a butt joint manner; the sliding mechanism comprises a lifting component 30, a front-back component 40 and a left-right component 50, wherein the lifting component 30 is arranged in the box body and used for controlling the upper cavity 22 to move up and down relative to the lower cavity 23, and the front-back component 40 and the left-right component 50 are arranged on the top plate 21 and used for controlling the top plate 21 to move back and forth and move left and right respectively. Wherein, the guide slot 231 has all been seted up to the top surface four corners department of cavity of resorption 23, and the four corners department of epicoele 22 bottom surface all is equipped with guide post 221, and guide post 221 can insert in the guide slot 231 and sliding connection. Through the sliding of the guide post 221 in the guide groove 231, the upper cavity 22 does not deviate when moving up and down relative to the lower cavity 23, so that the guide function is achieved, and the laser irradiation precision is improved.

As shown in fig. 4, in detail, the lifting assembly 30 includes a first rotating shaft 31, a second rotating shaft 32, a first gear 33, a lifting rack 34, a first bevel gear 35, a second bevel gear 36, a lifting member 37 and a first fixing member 60, a top end of the first fixing member 60 is connected to a top wall inside the upper chamber 22, a bottom end of the first fixing member 60 extends to inside of the lower chamber 23, one end of the first rotating shaft 31 rotatably penetrates through a side wall of the lower chamber 23 to be rotatably connected to the first fixing member 60, one end of the second rotating shaft 32 rotatably penetrates through the lower chamber 23 to be rotatably connected to the first fixing member 60 relative to the other side wall, the first rotating shaft 31 and the second rotating shaft 32 are respectively located at two opposite sides of the first fixing member 60, the first gear 33 is fixedly sleeved outside the first rotating shaft 31, the lifting rack 34 is slidably disposed on the top wall inside the upper chamber 22 through the second fixing member 70, and the first gear 33 is engaged with the lifting rack 34, the first bevel gear 35 is fixedly sleeved on the outer side of the second rotating shaft 32, the second bevel gear 36 is connected with the inner top wall of the upper cavity 22 through the lifting piece 37, and the first bevel gear 35 is in meshed connection with the second bevel gear 36. The rotation of the first rotating shaft 31 is used for coarse adjustment of the lifting of the upper chamber 22, and the rotation of the second rotating shaft 32 is used for fine adjustment of the lifting of the upper chamber 22.

When the height rough adjustment is carried out, the first rotating shaft 31 is rotated to drive the first gear 33 to rotate, and the height of the top end of the lifting rack 34 is raised due to the meshing connection of the first gear 33 and the lifting rack 34, so that the upper cavity 22 is jacked up, and the height of the upper cavity 22 is raised; when the height is adjusted in a fine manner, the second rotating shaft 32 is rotated to drive the first bevel gear 35 to rotate, and the first bevel gear 35 and the second bevel gear 36 are meshed and connected, so that the second bevel gear 36 rotates, the top end of the lifting piece 37 is lifted, the upper cavity 22 is jacked up, and the height of the upper cavity 22 is lifted.

The first fixing member 60 includes a first fixing plate 61, a top end of the first fixing plate 61 is connected to a middle portion of an inner top wall of the upper chamber 22, two opposite sides of a bottom of the first fixing plate 61 are respectively provided with a first rotating groove 62 and a second rotating groove 63, an end portion of the first rotating shaft 31 located in the lower chamber 23 is inserted into the first rotating groove 62 and rotatably connected with the first fixing plate 61, and an end portion of the second rotating shaft 32 located in the lower chamber 23 is inserted into the second rotating groove 63 and rotatably connected with the first fixing plate 61. The first fixing plate 61 is arranged to support the ends of the first rotating shaft 31 and the second rotating shaft 32 inside the lower chamber 23, and meanwhile, the occupied space of the lifting assembly 30 in the box body is saved, and mutual interference is avoided. The second fixing member 70 includes a second fixing plate 71 and a baffle 72, the top end of the second fixing plate 71 is fixedly connected to the inner top wall of the upper chamber 22, a lifting slide slot 73 with a T-shaped structure is formed in the side surface of the second fixing plate 71, the baffle 72 is disposed at the bottom end of the second fixing plate 71 and is used for sealing the lifting slide slot 73, and the lifting rack 34 is slidably disposed in the lifting slide slot 73. The lifting rack 34 is fixedly supported through the second fixing plate 71, so that the first gear 33 can drive the lifting rack 34 to move up and down; the baffle plate 72 is arranged to prevent the lifting rack 34 from falling from the lifting chute 73.

The lifting piece 37 comprises a threaded pipe 371, a third threaded rod 372 and a U-shaped frame 373, the open end of the U-shaped frame 373 is fixedly connected to the top wall of the upper cavity 22, the threaded pipe 371 is located on the inner side of the U-shaped frame 373, the top end of the threaded pipe 371 is fixedly connected with the top wall of the upper cavity 22, the top end of the third threaded rod 372 is inserted into the bottom end of the threaded pipe 371 and is in threaded connection, a through hole communicated with the inner side is formed in the closed end of the U-shaped frame 373, and the top end of the second bevel gear 36 penetrates through the through hole and is fixedly connected with the bottom end of the third threaded rod 372. Through the rotation of second bevel gear 36, drive third threaded rod 372 and rotate, because third threaded rod 372 and screwed pipe 371 threaded connection, third threaded rod 372 self height is fixed unchangeable for screwed pipe 371 is relative third threaded rod 372 upward movement, thereby with the high jacking of epicoele 22.

Preferably, the height that the upper chamber 22 ascends when the first rotation shaft 31 makes one rotation is 2-5 times the height that the upper chamber 22 ascends when the second rotation shaft 32 makes one rotation. The third threaded rod 372 rotates once, and the height of the threaded tube 371 rises by 0.5 mm.

Referring to fig. 5, 6 and 7, two parallel gear grooves 222 are formed in the top surface of the upper chamber 22 and communicate with the inside, the front and rear assembly 40 includes a third rotating shaft 41, a fourth rotating shaft 42, a third gear 43, a fourth gear 44, a first front and rear rack 45 and a second front and rear rack 46, the third rotating shaft 41 and the fourth rotating shaft 42 are both located inside the upper chamber 22, both ends of the third rotating shaft 41 and the fourth rotating shaft 42 are rotatably connected with the inner side wall of the upper chamber 22, one end of the third rotating shaft 41 extends to the outside through one side wall of the upper chamber 22, one end of the fourth rotating shaft 42 extends to the outside through the other side wall of the upper chamber 22, the first front and rear rack 45 and the second front and rear rack 46 are fixedly arranged on the bottom surface of the top plate 21 in parallel, the third gear 43 is fixedly arranged on the outside of the third rotating shaft 41, the fourth gear 44 is fixedly arranged on the outside of the fourth rotating shaft 42, one gear groove 222 protruding from the third gear 43 is engaged with the first front and rear rack 45, the fourth gear 44 protrudes out of the other gear groove 222 to be meshed with the second front and rear racks 46. The rotation of the third rotating shaft 41 is used for coarse adjustment of the forward and backward movement of the top plate 21, and the rotation of the fourth rotating shaft 42 is used for fine adjustment of the forward and backward movement of the top plate 21.

When the front-back movement distance of the top plate 21 is roughly adjusted, the third rotating shaft 41 is rotated to drive the third gear 43 to rotate, and the third gear 43 rotates to be meshed with the first front-back rack 45, so that the first front-back rack 45 is driven to move back and forth, and the top plate 21 moves in the front-back direction; when the distance between the top plate 21 and the front-rear direction is finely adjusted, the fourth rotating shaft 42 is rotated to drive the fourth gear 44 to rotate, and the fourth gear 44 rotates to be engaged with the second front-rear rack 46, so that the second front-rear rack 46 is driven to move forward and backward, and the top plate 21 moves in the distance between the front and rear directions.

Preferably, the width of the first front and rear racks 45 is greater than that of the third gear 43, and the width of the second front and rear racks 46 is greater than that of the fourth gear 44. The number of teeth on the first front and rear racks 45 is 2-5 times the number of teeth on the second front and rear racks 46. The third rotating shaft 41 is rotated to make the second front and rear racks 46 drive the top plate 21 to slightly move in the front and rear directions, so that the cell culture dish on the top plate 21 is accurately irradiated by the laser to prevent deviation.

As shown in fig. 8, the left and right assembly 50 includes a first threaded rod 51, a second threaded rod 52, a fixing rod 53 and two third fixing plates 54, one end of each of the two third fixing plates 54 is respectively and fixedly disposed on the two opposite side surfaces of the upper cavity 22, a through hole is disposed on the side surface of the top plate 21, the through hole penetrates through the two opposite side surfaces of the top plate 21, the fixing rod 53 is fixedly sleeved in the through hole, one end of the fixing rod 53 is provided with a thick threaded hole 531 along the axis direction thereof, the other end of the fixing rod 53 is provided with a thin threaded hole 532 along the axis direction thereof, one end of the first threaded rod 51 is inserted into the thick threaded hole 531 and is in threaded connection, the other end of the first threaded rod 51 is rotatably connected with one end of one third fixing plate 54 far away from the upper cavity 22, and the other end of the second threaded rod 52 is rotatably connected with one end of the other third fixing plate 54 far away from the upper cavity 22. Wherein, third fixed plate 54 is L shape structure, fixed orifices 541 has been seted up on the top of third fixed plate 54, the fixed slot has all been seted up to the one end that first threaded rod 51 and second threaded rod 52 are located the roof 21 outside, the fixed slot can be blocked in the fixed orifices 541, the one end that first threaded rod 51 is located thick screw hole 531 is passed fixed orifices 541 and is rotated with a third fixed plate 54 and is connected, the one end that first threaded rod 51 is located thin screw hole 532 passes fixed orifices 541 and is rotated with another third fixed plate 54 and be connected. The rotation of the first screw rod 51 is used for coarse adjustment of the top plate 21 moving left and right, and the rotation of the second screw rod 52 is used for fine adjustment of the top plate 21 moving left and right.

When the coarse adjustment of the left-right movement distance of the top plate 21 is performed, the first threaded rod 51 is rotated to enable the end part of the first threaded rod 51 to be screwed in or out in the coarse threaded hole 531, and the top plate 21 moves in the left-right direction due to the fact that the end part of the first threaded rod 51 is clamped on the fixing plate; when the top plate 21 is finely adjusted in the leftward and rightward movement distance, the second threaded rod 52 is rotated to screw in or out the end of the second threaded rod 52 in the fine threaded hole 532, and the end of the second threaded rod 52 is engaged with the fixing plate, so that the top plate 21 is moved in the leftward and rightward direction.

Preferably, the distance of one rotation of the first threaded rod 51 is 2 to 5 times the distance of one rotation of the second threaded rod 52. The second threaded rod 52 rotates for one circle, and the moving distance of the top plate 21 is 0.5 mm. The adjustment of the fine distance of the second threaded rod 52 enables the culture dish on the top plate 21 to be more easily positioned accurately, and accurate detection data can be obtained.

As shown in fig. 1, in this embodiment, a laser power density detector 80 is disposed on the top plate 21 for detecting the power of the laser. The laser power density detectors 80 are multiple in number, so that detection data can be more accurate.

The working principle of the invention is as follows: when the device is used, the first fixing frame 13 and the second fixing frame 14 are used for respectively clamping and fixing the laser emitter and the expanded beam, so that the laser emitter and the expanded beam are aligned; then placing a cell culture dish on the top plate 21 so that the cell culture dish is positioned below the light expansion beam; then adjusting the carrying platform 20 to enable the light emitted by the laser emitter to accurately irradiate the cell culture dish; meanwhile, a laser power density detector 80 is mounted on the top plate 21 to detect the power density at the time of laser irradiation.

When the height of the top plate 21 is adjusted, the first rotating shaft 31 is rotated to drive the first gear 33 to rotate, so that the height of the lifting rack 34 is raised, and the height of the upper cavity 22 is jacked up; the second rotating shaft 32 is rotated, so that the first bevel gear 35 drives the second bevel gear 36 to rotate, the height of the threaded pipe 371 is increased, and the height of the upper cavity 22 is finely adjusted. When the top plate 21 needs to move back and forth, the third rotating shaft 41 is rotated, so that the third gear 43 drives the first front and back rack 45 to move, and the top plate 21 moves in the front and back direction; the fourth rotating shaft 42 is rotated to make the fourth gear 44 drive the first front and rear racks to move, and the movement of the top plate 21 in the front and rear direction is finely adjusted. When the top plate 21 needs to move left and right, the first threaded rod 51 is rotated to enable the end part of the first threaded rod 51 to be screwed in or out of the coarse threaded hole 531, and the top plate 21 moves in the left and right direction; the end of the first and third threaded rod 372 is screwed into or out of the fine threaded hole 532 by rotating the first and third threaded rod 372, and the top plate 21 is finely adjusted in the left-right direction.

The invention has the beneficial effects that: this laser generator's fixing device is through first mount 13 and second mount 14 fixed laser emitter of centre gripping respectively and expand the light beam, through the displacement and the moving direction (from top to bottom, about and around) of slide mechanism control roof 21, makes the accurate removal of the cell culture dish of placing on the roof 21 to the position that laser shines to the displacement of accurate control roof 21 avoids the inaccurate accuracy that leads to influencing the measured data in location.

The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A fixing device of a laser generator, comprising:

the sliding mechanism is used for controlling the up-down, left-right and front-back movement of the loading platform and comprises a lifting assembly, a front-back assembly and a left-right assembly, the lifting assembly is arranged in the box body and used for controlling the up-down movement of the upper cavity relative to the lower cavity, and the front-back assembly and the left-right assembly are both arranged on the top plate and respectively used for controlling the front-back movement and the left-right movement of the top plate;

the lifting component comprises a first rotating shaft, a second rotating shaft, a first gear, a lifting rack, a first conical gear, a second conical gear, a lifting part and a first fixing part, the top end of the first fixing part is connected with the top wall inside the upper chamber, the bottom end of the first fixing part extends to the inside of the lower chamber, one end of the first rotating shaft can rotatably penetrate through one side wall of the lower chamber to be rotatably connected with the first fixing part, one end of the second rotating shaft can rotatably penetrate through the other side wall of the lower chamber to be rotatably connected with the first fixing part, the first rotating shaft and the second rotating shaft are respectively positioned at two opposite sides of the first fixing part, the first gear is fixedly sleeved at the outer side of the first rotating shaft, the lifting rack is slidably arranged on the inner top wall of the upper chamber through the second fixing part, the first gear is meshed with the lifting rack and is connected with the first conical gear, the first conical gear is fixedly sleeved at the outer side of the second rotating shaft, the second bevel gear is connected with the inner top wall of the upper cavity through the lifting piece, and the first bevel gear is meshed with the second bevel gear;

the top surface of the upper cavity is provided with two parallel gear grooves communicated with the interior, the front and rear assemblies comprise a third rotating shaft, a fourth rotating shaft, a third gear, a fourth gear, a first front rack, a second rear rack, a first rear rack and a second front rack, the third rotating shaft and the fourth rotating shaft are both positioned in the upper cavity, two ends of the third rotating shaft and two ends of the fourth rotating shaft are both rotatably connected with the inner side wall of the upper cavity, the first front rack, the second rear rack, the third gear, the fourth gear and the third rack are fixedly arranged on the bottom surface of the top plate in parallel, the third gear is fixedly sleeved on the outer side of the third rotating shaft, the fourth gear is fixedly sleeved on the outer side of the fourth rotating shaft, one protruding gear groove of the third gear is meshed with the first front rack and the second rear rack, and the fourth gear is meshed with the other protruding gear groove of the second gear;

the left and right components comprise a first threaded rod, a second threaded rod, a fixed rod and two fixed plates, one end of each fixed plate is respectively fixed on two opposite side surfaces of the upper cavity, a penetrating hole is formed in the side surface of the top plate and penetrates through two opposite side surfaces of the top plate, the fixed sleeve of the fixed rod is arranged in the penetrating hole, a thick threaded hole is formed in one end of the fixed rod along the axis direction of the fixed rod, a thin threaded hole is formed in the other end of the fixed rod along the axis direction of the fixed rod, one end of the first threaded rod is inserted into the thick threaded hole and is connected with the threads, one end of the upper cavity is far away from by the other end of the first threaded rod and one fixed plate and is rotatably connected with the other end of the second threaded rod, which is far away from the upper cavity by the other fixed plate.

2. A fixing device of a laser generator according to claim 1, wherein: the first fixing piece comprises a first fixing plate, the top end of the first fixing plate is connected to the middle of the top wall of the upper cavity, a first rotating groove and a second rotating groove are formed in two opposite sides of the bottom of the first fixing plate respectively, the end portion, located in the lower cavity, of the first rotating shaft is inserted into the first rotating groove and is connected with the first fixing plate in a rotating mode, and the end portion, located in the lower cavity, of the second rotating shaft is inserted into the second rotating groove and is connected with the first fixing plate in a rotating mode.

3. A fixing device of a laser generator according to claim 1, wherein: the second fixing piece comprises a second fixing plate and a baffle, the top end of the second fixing plate is fixedly connected with the inner top wall of the upper cavity, the side face of the second fixing plate is provided with a lifting chute with a T-shaped structure, the baffle is arranged at the bottom end of the second fixing plate and used for sealing the lifting chute, and the lifting rack is slidably arranged in the lifting chute.

4. A fixing device of a laser generator according to claim 1, wherein: the guide way has all been seted up to the top surface four corners department of cavity down, the four corners department of epicoele bottom surface all is equipped with the guide post, the guide post can insert in the guide way and sliding connection.

5. A fixing device of a laser generator according to claim 1, wherein: the lifting piece comprises a threaded pipe, a third threaded rod and a U-shaped frame, the opening end of the U-shaped frame is fixedly connected to the top wall of the inner portion of the upper cavity, the threaded pipe is located on the inner side of the U-shaped frame, the top end of the threaded pipe is fixedly connected with the top wall of the inner portion of the upper cavity, the top end of the third threaded rod is inserted into the bottom end of the threaded pipe and is in threaded connection with the bottom wall of the upper cavity, a through hole communicated with the inner side is formed in the closed end of the U-shaped frame, and the top end of the second bevel gear penetrates through the bottom fixed connection of the through hole and the third threaded rod.

6. A fixing device of a laser generator according to claim 1, wherein: the width of the first front and rear racks is larger than that of the third gear, the width of the first front and rear racks is larger than that of the fourth gear, and the number of teeth on the first front and rear racks is 2-4 times that of the second front and rear racks.