Camera focusing and leveling mechanism of blood analyzer

Abstract

The camera focusing and leveling mechanism comprises a camera, a leveling mechanism and a focusing mechanism, the leveling mechanism comprises a fixed block, a moving block, an elastic connecting assembly and two adjusting pieces, the upper portion of the camera is fixed on the fixed block, the lower portion of the camera sequentially penetrates through the fixed block and the moving block, and the focusing mechanism is fixed on the moving block. A first groove is formed in the bottom face of a first corner of the fixed block, a second groove is formed in the moving block, and a supporting ball is arranged between the first groove and the second groove. The two adjusting pieces are arranged on a second corner part and a third corner part, adjacent to the first corner part, of the fixed block respectively, and the lower ends of the adjusting pieces stretch out of the fixed block and abut against the moving block; the elastic connecting assembly is arranged between the fixed block and the moving block. The camera and the fixing block are connected into a whole, and the corresponding corner part of the fixing block moves up and down relative to the moving block by taking the supporting ball as a fulcrum by adjusting the extending length of the lower end of the adjusting piece, so that the inclination angle of the camera can be leveled, and the quality of shot images is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blood analyzers, in particular to a camera focusing and leveling mechanism of a blood analyzer. Background Art

[0002] An optical microscope is a precision optical instrument that uses optical principles to magnify tiny objects that cannot be distinguished by the human eye, so that these tiny structures can be observed. For example, a blood analyzer used in medicine counts and classifies various cells in the blood by taking pictures of blood samples and analyzing the images. This instrument requires higher image clarity, which requires the camera to focus more accurately. An optical microscope generally includes a camera, which includes a camera body and a lens barrel connected up and down. Before using an optical microscope, the camera is generally adjusted to move up and down to achieve focus adjustment and ensure image quality.

[0003] As the Chinese patent of announcement number CN218728320U provides a fast and accurate microscope focusing device, including: a vertical plate, also including a camera and an object lens connected to the camera, a vertical rail is installed on the vertical plate, a strip mounting plate is connected to the vertical rail, and the strip mounting plate is connected to the camera away from the side of the vertical rail; also including a driving mechanism for driving the lifting of the strip mounting plate, the driving mechanism includes a screw assembly, a nut seat threaded on the screw assembly and a circumference counter connected to one end of the screw assembly, and the nut seat is connected to the strip mounting plate. Although the above-mentioned microscope can realize focus adjustment, the microscope is in the batch production assembly link, and it is still difficult to avoid the phenomenon that the picture clarity taken is inconsistent, which is caused by the processing and assembly errors that make the camera of the microscope tilt. And the prior art is generally adjusted by the way of disassembling and assembling the camera again, and the operation process is complicated.

[0004] Therefore, the prior art has a large room for improvement. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to propose a camera focus and leveling mechanism for a blood analyzer, in which a camera and a fixed block are connected as a whole, and adjustment pieces are respectively provided on the second corner and the third corner of the fixed block, so that the tilt angle of the camera can be leveled by adjusting the length of the lower end of the adjustment piece, thereby improving the quality of the captured image.

[0006] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0007] The utility model provides a camera focus and leveling mechanism of a blood analyzer, comprising a camera, a leveling mechanism and a focusing mechanism; the leveling mechanism comprises a fixed block, a moving block, an elastic connection component and two adjusting members, the moving block is arranged below the fixed block, the upper part of the camera is fixed on the fixed block, the lower part of the camera passes through the fixed block and the moving block in sequence, and the focusing mechanism is used to drive the moving block to move up and down; a first groove is arranged on the bottom surface of a first corner of the fixed block, a second groove corresponding to the first groove is arranged on the moving block, and a supporting ball is arranged between the first groove and the second groove; the two adjusting members are respectively arranged at a second corner and a third corner adjacent to the first corner on the fixed block, the lower end of the adjusting member extends out of the fixed block and abuts against the moving block, and the upper and lower distances of the corners corresponding to the fixed block relative to the moving block with the supporting ball as a fulcrum are adjusted by adjusting the length of the lower end of the adjusting member extending outward; the elastic connection component is arranged between the fixed block and the moving block, and is arranged close to the supporting ball.

[0008] Under the elastic action of the elastic connection component, the first corner of the fixed block is pulled toward the moving block to prevent the supporting ball from falling off; the camera and the fixed block are connected as a whole, and the fixed block maintains force balance under the action of the adjusting member, the elastic connection component and the supporting ball. By adjusting the extended length of the lower end of the adjusting member, the corresponding corner of the fixed block can move up and down relative to the moving block with the supporting ball as a fulcrum, so that the fixed block can be leveled, that is, the tilt angle of the camera can be leveled, thereby improving the quality of the captured image.

[0009] It is understandable that the support ball is limited in the first groove and the second groove, and can rotate freely in the first groove and the second groove. The motion block is provided with a through hole for the lower part of the camera to pass through, and the through hole can also allow the camera to have a certain movement space when leveling. The adjustment member can be selected from adjustment screws, adjustment screws with manual knobs, miniature electric push rods, etc. according to actual needs. The shape of the first groove and the second groove can be conical, spherical, or other shapes, as long as they can cooperate with the support ball, and the utility model does not limit their shapes.

[0010] According to the above solution, the utility model preferably adopts an adjusting screw as the adjusting member, the adjusting screw is threadedly connected to the fixed block, and the lower end of the adjusting screw extends out of the fixed block and abuts against the moving block. Through the above structural setting, when the adjusting screw is rotated, the length of the lower end of the adjusting screw extending out can be adjusted, thereby adjusting the vertical distance of the corner corresponding to the fixed block relative to the moving block with the support ball as the fulcrum.

[0011] According to the above scheme, the second corner and the third corner on the fixed block are respectively provided with a first through hole, an adjusting nut is fixed in the first through hole, and the adjusting screw is threadedly connected to the adjusting nut; the upper surface of the moving block is provided with a groove corresponding to the adjusting screw, a stainless steel gasket is provided in the groove, and a steel ball is provided at the lower end of the adjusting screw, and the steel ball abuts against the stainless steel gasket.

[0012] By providing an adjusting nut in the first through hole, damage to the fixed block can be prevented; a stainless steel gasket is provided in the groove on the moving block to protect the moving block from being deformed by the adjusting screw; a steel ball is provided at the lower end of the adjusting screw to abut against the stainless steel gasket, which can reduce the friction between the adjusting screw and the stainless steel gasket during adjustment.

[0013] According to the above scheme, the elastic connection assembly includes a fine-thread screw and a spring; the fixed block is provided with a placement groove, the spring is arranged in the placement groove, and the lower end of the fine-thread screw passes through the screw gasket, spring and fixed block in sequence and is threadedly connected to the moving block.

[0014] Through the above-mentioned structural setting, the two ends of the spring are respectively set against the screw gasket and the bottom of the placement groove, and under the elastic action of the spring, the first corner of the fixed block is tightened toward the moving block; the set screw gasket can increase the contact surface between the fine-thread screw and the spring; by adjusting the depth of the lower end of the fine-thread screw screwed into the moving block, the elastic force of the spring can also be adjusted.

[0015] According to the above scheme, the elastic connection components are provided with two groups, one group of elastic connection components is provided on the line between the support ball and the adjustment piece on the second corner, and the other group of elastic connection components is provided on the line between the support ball and the adjustment piece on the third corner.

[0016] According to the above solution, the focusing mechanism includes a sliding seat and a driving mechanism, the sliding seat is fixedly connected to the moving block, and the driving mechanism drives the sliding seat to move up and down.

[0017] When the sliding seat moves up and down under the action of the driving mechanism, it will drive the moving block and the fixed block to move up and down synchronously, and then drive the camera to move up and down to achieve focus adjustment.

[0018] According to the above scheme, the driving mechanism includes a screw motor, a screw and a screw nut, the screw nut is fixedly connected to the sliding seat, the output shaft of the screw motor is fixedly connected to the screw, and the screw nut is threadedly connected to the screw. The screw motor drives the screw to rotate, so that the screw nut can move on the screw, thereby driving the sliding seat to move up and down along the screw.

[0019] According to the above scheme, the focusing mechanism further includes a support frame, a sliding cavity is provided in the support frame, and cross roller guides are provided on both sides of the sliding seat, the cross roller guides include a moving rail and a fixed rail that cooperate with each other, the fixed rail is fixed on both sides of the sliding cavity, and the moving rail is fixedly connected to the sliding seat. By providing two cross roller guides, it is beneficial to improve the stability of the sliding seat moving up and down in the sliding cavity.

[0020] According to the above solution, an optical coupling baffle is fixed on the sliding seat, and an upper optical coupling and a lower optical coupling are arranged on the support frame. The upper optical coupling, the lower optical coupling and the optical coupling baffle respectively control the upper and lower limit distances of the sliding seat's up and down movement.

[0021] According to the above solution, the support frame is provided with an adjustment hole, and an adjustment screw for adjusting the cross roller guide is provided in the adjustment hole. The clearance during the assembly of the cross roller guide can be eliminated by tightening the adjustment, thereby improving the rigidity of the structure.

[0022] The beneficial effects of the utility model are:

[0023] The utility model provides a camera focus and leveling mechanism for a blood analyzer, which connects a camera and a fixed block into an integral body, and respectively provides adjusting pieces for adjusting the vertical distance of the corner corresponding to the fixed block relative to a moving block with a supporting ball as a fulcrum on the second corner and the third corner of the fixed block, so that the fixed block maintains force balance under the action of the adjusting piece, the elastic connection assembly and the supporting ball, and the fixed block can be leveled by adjusting the length of the lower end of the adjusting piece so that the corner corresponding to the fixed block can move up and down relative to the moving block with the supporting ball as a fulcrum, thereby leveling the fixed block, thereby leveling the tilt angle of the camera and improving the quality of the captured image. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 This is a partial structural diagram of the utility model. Figure 1 ;

[0026] Figure 3 This is a partial structural diagram of the utility model. Figure 2 ;

[0027] Figure 4 This is a partial structural diagram of the utility model. Figure 3 ;

[0028] Figure 5 yes Figure 4 Schematic cross-sectional view of AA.

[0029] In the figure: 1. camera; 2. fixed block; 21. first corner; 22. second corner; 23. third corner; 24. first through hole; 241. adjusting nut; 25. placement slot; 3. moving block; 31. groove; 311. stainless steel gasket; 32. sliding seat; 321. optical coupling baffle; 4. supporting ball; 41. first slot; 42. second slot; 5. adjusting screw; 51. steel ball; 6. fine-pitch screw; 61. spring 62. screw gasket; 8. lead screw motor; 71. lead screw; 72. lead screw nut; 9. supporting frame; 81. sliding cavity; 82. moving rail; 83. fixed rail; 84. upper optical coupling; 85. lower optical coupling; 86. adjusting hole; 861. adjusting top screw. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1-5 As shown, the utility model provides a camera focus and leveling mechanism of a blood analyzer, including a camera 1 leveling mechanism and a focusing mechanism; the leveling mechanism includes a fixed block 2, a moving block 3, an elastic connection assembly and two adjusting members, the moving block 3 is arranged below the fixed block 2, the upper part of the camera 1 is fixed on the fixed block 2, the lower part of the camera 1 passes through the fixed block 2 and the moving block 3 in sequence, and the focusing mechanism is used to drive the moving block 3 to move up and down; the bottom surface of the first corner 21 of the fixed block 2 is provided with a first groove 41, and the moving block 3 is provided with a first groove 41. The first groove 41 corresponds to the second groove 42, and a support ball 4 is provided between the first groove 41 and the second groove 42; the two adjusting members are respectively provided at the second corner 22 and the third corner 23 adjacent to the first corner 21 on the fixed block 2, and the lower end of the adjusting member extends out of the fixed block 2 and abuts against the moving block 3, and the upper and lower distances of the corners corresponding to the fixed block 2 relative to the moving block 3 with the support ball 4 as the fulcrum are adjusted by adjusting the length of the lower end of the adjusting member. The elastic connection component is provided between the fixed block 2 and the moving block 3, and is arranged close to the support ball 4.

[0032] Under the elastic action of the elastic connection component, the first corner 21 of the fixed block 2 is pulled toward the moving block 3 to prevent the supporting ball 4 from falling off; the camera 1 and the fixed block 2 are connected as a whole, and the fixed block 2 is kept in force balance under the action of the adjusting member, the elastic connection component and the supporting ball 4. By adjusting the length of the lower end of the adjusting member extending out, the corresponding corner of the fixed block 2 is made to move up and down relative to the moving block 3 with the supporting ball 4 as the fulcrum, so that the fixed block 2 can be leveled, that is, the tilt angle of the camera 1 can be leveled, and the quality of the captured image can be improved.

[0033] Furthermore, the adjusting member is an adjusting screw 5, which is threadedly connected to the fixed block 2, and the lower end of the adjusting screw 5 passes through the fixed block 2 and abuts against the moving block 3. Through the above-mentioned structural setting, when the adjusting screw 5 is rotated, the length of the lower end of the adjusting screw 5 can be adjusted, so as to adjust the upper and lower distances of the corners corresponding to the fixed block 2 relative to the moving block 3 with the supporting ball 4 as the fulcrum.

[0034] Furthermore, the second corner portion 22 and the third corner portion 23 on the fixed block 2 are respectively provided with a first through hole 24, an adjusting nut 241 is fixed in the first through hole 24, and the adjusting screw 5 is threadedly connected to the adjusting nut 241; the upper surface of the moving block 3 is provided with a groove 31 corresponding to the adjusting screw 5, a stainless steel gasket 411 is provided in the groove 31, and a steel ball 51 is provided at the lower end of the adjusting screw 5, and the steel ball 51 abuts against the stainless steel gasket 411.

[0035] By providing an adjusting nut 241 in the first through hole 24, damage to the fixed block 2 can be prevented; a stainless steel gasket 411 is provided in the groove 31 on the moving block 3 to protect the moving block 3 from being deformed by the adjusting screw 5; a steel ball 51 is provided at the lower end of the adjusting screw 5 to abut against the stainless steel gasket 411, which can reduce the friction between the adjusting screw 5 and the stainless steel gasket 411 during adjustment.

[0036] Furthermore, the elastic connection assembly includes a fine-thread screw 6 and a spring 61; a placement groove 25 is provided on the fixed block 2, and the spring 61 is arranged in the placement groove 25. The lower end of the fine-thread screw 6 passes through the screw gasket 62, the spring 61 and the fixed block 2 in sequence and is threadedly connected to the moving block 3.

[0037] Through the above-mentioned structural setting, the two ends of the spring 61 are respectively set against the screw gasket 62 and the bottom of the placement groove 25, and under the elastic action of the spring 61, the first corner 21 of the fixed block 2 is tightened toward the moving block 3; the set screw gasket 62 can increase the contact surface between the fine-pitch screw 6 and the spring 61; by adjusting the depth of the lower end of the fine-pitch screw 6 screwed into the moving block 3, the elastic force of the spring 61 can also be adjusted.

[0038] Furthermore, the elastic connection components are provided in two groups, one group of elastic connection components is provided on the line between the support ball 4 and the adjustment piece on the second corner 22, and the other group of elastic connection components is provided on the line between the support ball 4 and the adjustment piece on the third corner 23.

[0039] Furthermore, the focusing mechanism includes a sliding seat 32 and a driving mechanism. The sliding seat 32 is fixedly connected to the moving block 3 , and the driving mechanism drives the sliding seat 32 to move up and down.

[0040] When the sliding seat 32 moves up and down under the action of the driving mechanism, it will drive the moving block 3 and the fixed block 2 to move up and down synchronously, and then drive the camera 1 to move up and down to achieve focus adjustment.

[0041] Furthermore, the driving mechanism includes a screw motor 7, a screw 71 and a screw nut 72, wherein the screw nut 72 is fixedly connected to the sliding seat 32, the output shaft of the screw motor 7 is fixedly connected to the screw 71, and the screw nut 72 is threadedly connected to the screw 71. The screw motor 7 drives the screw 71, so that the screw nut 72 can move on the screw 71, thereby driving the sliding seat 32 to move up and down along the screw 71.

[0042] Furthermore, the focusing mechanism further comprises a support frame 8, wherein a sliding cavity 81 is provided in the support frame 8, and cross roller guides are provided on both sides of the sliding seat 32, wherein the cross roller guides comprise a moving rail 82 and a fixed rail 83 which cooperate with each other, wherein the fixed rail 83 is fixed on both sides of the sliding cavity 81, and the moving rail 82 is fixedly connected to the sliding seat 32. By providing two cross roller guides, the stability of the sliding seat 32 moving up and down in the sliding cavity 81 is improved.

[0043] Furthermore, an optical coupler baffle 321 is fixed on the sliding seat 32, and an upper optical coupler 84 and a lower optical coupler 85 are provided on the support frame 8. The upper optical coupler 84, the lower optical coupler 85 and the optical coupler baffle 321 respectively control the upper and lower limit distances of the sliding seat 32 moving up and down.

[0044] Furthermore, the support frame 8 is provided with an adjustment hole 86, and an adjustment screw 861 for adjusting the cross roller guide is provided in the adjustment hole 86. The clearance during the assembly of the cross roller guide can be eliminated by tightening the adjustment, thereby improving the rigidity of the structure.

[0045] When the camera focus and leveling mechanism of the blood analyzer of the utility model is in use, the screw motor 7 is driven, and the screw motor 7 drives the screw 71 to rotate, so that the screw nut 72 can move on the screw 71, driving the moving block 3 and the fixed block 2 to move up and down synchronously, and then driving the camera 1 to move up and down to achieve focus adjustment; after completing the focus, the camera 1 shoots the object on the stage, and the user observes the captured image and determines the tilt direction of the camera 1 according to the image; the hexagonal wrench is used to adjust the length of the lower end of the adjusting screw 5 on the second corner 22 and / or the third corner 23 so that the fixed block 22 can move up and down synchronously, and then the camera 1 can move up and down to achieve focus adjustment; after completing the focus, the camera 1 shoots the object on the stage, and the user observes the captured image and determines the tilt direction of the camera 1 according to the image; the hexagonal wrench is used to adjust the length of the lower end of the adjusting screw 5 on the second corner 22 and / or the third corner 23 so that the fixed block 22 can move up and down synchronously, and then the fixed block ... The corner corresponding to the fixed block 2 moves up and down relative to the moving block 3 with the supporting ball 4 as the fulcrum, so that the fixed block 2 can be leveled; specifically, when the adjusting screw 5 at the corresponding corner is tightened, the adjusting screw 5 spirally moves downward in the adjusting nut 241, so that the length of the lower end of the adjusting screw 5 is increased, and then the corner corresponding to the fixed block 2 moves upward relative to the moving block 3 with the supporting ball 4 as the fulcrum, and vice versa, the corner corresponding to the fixed block 2 can be moved downward relative to the moving block 3 with the supporting ball 4 as the fulcrum, that is, the tilt angle of the camera 1 can be leveled by tightening and / or loosening the corresponding adjusting screw 5.

[0046] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A camera focus and leveling mechanism for a blood analyzer, characterized in that: It includes a camera (1), a leveling mechanism and a focusing mechanism; The leveling mechanism comprises a fixed block (2), a moving block (3), an elastic connection assembly and two adjusting members, the moving block (3) being arranged below the fixed block (2), the upper part of the camera (1) being fixed on the fixed block (2), the lower part of the camera (1) passing through the fixed block (2) and the moving block (3) in sequence, and the focusing mechanism being used to drive the moving block (3) to move up and down; A first groove (41) is provided on the bottom surface of the first corner portion (21) of the fixed block (2), a second groove (42) corresponding to the first groove (41) is provided on the moving block (3), and a supporting ball (4) is provided between the first groove (41) and the second groove (42); The two adjusting members are respectively arranged at a second corner (22) and a third corner (23) adjacent to the first corner (21) on the fixed block (2); the lower end of the adjusting member extends out of the fixed block (2) and abuts against the moving block (3); and the vertical distance of the corner corresponding to the fixed block (2) relative to the moving block (3) with the supporting ball (4) as a fulcrum is adjusted by adjusting the length of the lower end of the adjusting member extending out. The elastic connection component is arranged between the fixed block (2) and the moving block (3), and is arranged close to the supporting ball (4).

2. The camera focus and leveling mechanism of the blood analyzer according to claim 1, characterized in that: The adjusting member is an adjusting screw (5), the adjusting screw (5) is threadedly connected to the fixing block (2), and the lower end of the adjusting screw (5) extends out of the fixing block (2) and abuts against the moving block (3).

3. The camera focus and leveling mechanism of the blood analyzer according to claim 2, characterized in that: The second corner portion (22) and the third corner portion (23) of the fixing block (2) are respectively provided with a first through hole (24), an adjusting nut (241) is fixed in the first through hole (24), and the adjusting screw (5) is threadedly connected to the adjusting nut (241); The upper surface of the moving block (3) is provided with a groove (31) corresponding to the adjusting screw (5), a stainless steel gasket (311) is provided in the groove (31), and a steel ball (51) is provided at the lower end of the adjusting screw (5), and the steel ball (51) abuts against the stainless steel gasket (311).

4. The camera focus and leveling mechanism of the blood analyzer according to claim 1, characterized in that: The elastic connection assembly comprises a fine-thread screw (6) and a spring (61); a placement groove (25) is provided on the fixed block (2), the spring (61) is arranged in the placement groove (25), and the lower end of the fine-thread screw (6) passes through a screw washer (62), a spring (61) and the fixed block (2) in sequence and is threadedly connected to the moving block (3).

5. The camera focus and leveling mechanism of the blood analyzer according to claim 4, characterized in that: The elastic connection components are provided in two groups, one group of elastic connection components is provided on the line between the support ball (4) and the adjustment member on the second corner (22), and the other group of elastic connection components is provided on the line between the support ball (4) and the adjustment member on the third corner (23).

6. The camera focus and leveling mechanism of the blood analyzer according to claim 1, characterized in that: The focusing mechanism comprises a sliding seat (32) and a driving mechanism, the sliding seat (32) is fixedly connected to the moving block (3), and the driving mechanism drives the sliding seat (32) to move up and down.

7. The camera focus and leveling mechanism of the blood analyzer according to claim 6, characterized in that: The driving mechanism comprises a screw motor (7), a screw (71) and a screw nut (72); the screw nut (72) is fixedly connected to the sliding seat (32); the output shaft of the screw motor (7) is fixedly connected to the screw (71); and the screw nut (72) is threadedly connected to the screw (71).

8. The camera focus and leveling mechanism of the blood analyzer according to claim 6, characterized in that: The focusing mechanism further comprises a support frame (8), a sliding cavity (81) being provided in the support frame (8), cross roller guide rails being provided on both sides of the sliding seat (32), the cross roller guide rails comprising a moving rail (82) and a fixed rail (83) which cooperate with each other, the fixed rail (83) being fixed on both sides of the sliding cavity (81), and the moving rail (82) being fixedly connected to the sliding seat (32).

9. The camera focus and leveling mechanism of the blood analyzer according to claim 8, characterized in that: An optical coupling baffle (321) is fixed on the sliding seat (32), and an upper optical coupling (84) and a lower optical coupling (85) are provided on the support frame (8).

10. The camera focus and leveling mechanism of the blood analyzer according to claim 8, characterized in that: The support frame (8) is provided with an adjustment hole (86), and an adjustment top screw (861) for adjusting the cross roller guide rail is provided in the adjustment hole (86).

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