CN-224232026-U - Photographing device for blood sample

CN224232026UCN 224232026 UCN224232026 UCN 224232026UCN-224232026-U

Abstract

The utility model relates to a photographing device for a blood sample, which comprises a camera component, a sensing component, a driving component and a transmission component, wherein the camera component comprises a main body lens and a focusing lens, the focusing lens is sleeved on the main body lens and is in threaded connection with the main body lens, the sensing component comprises a sensing piece, a first sensor and a second sensor, the first sensor is positioned above the second sensor, the first sensor and the second sensor are used for sensing the sensing piece, the transmission component is connected with the focusing lens and the sensing piece, the driving component is in transmission connection with the transmission component, and the driving component drives the focusing lens to rotate relative to the main body lens through the transmission component and drives the sensing piece to move in the up-down direction. The photographing device for the blood sample is beneficial to clearly photographing centrifuges with different heights in a high-speed rotation state, does not need manual operation, saves adjustment time and labor cost, and avoids deviation caused by manual focusing and probability of error.

Inventors

CHI SHEN
MENG RUIFENG
WANG JIAHUI
ZHAO YUE

Assignees

苏州欣协生物科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250630

Claims (10)

1. The photographing device for the blood sample is characterized by comprising a camera component, a sensing component, a driving component and a transmission component, wherein the camera component comprises a main body lens and a focusing lens, the focusing lens is sleeved on the main body lens, and the focusing lens is in threaded connection with the main body lens; The sensing assembly comprises a sensing piece, a first sensor and a second sensor, wherein the first sensor is positioned above the second sensor, and the first sensor and the second sensor are used for sensing the sensing piece; The driving assembly is in transmission connection with the focusing lens and the sensing piece, the driving assembly drives the focusing lens to rotate relative to the main body lens through the driving assembly, and the sensing piece is driven to move in the up-down direction.
2. The photographing device for blood samples as claimed in claim 1, wherein the driving assembly comprises a driving motor and a first gear fixedly arranged on a driving shaft of the driving motor; The transmission assembly comprises a second gear, a guide piece and a third gear, wherein the second gear is fixedly arranged on the focusing lens, the third gear is arranged on the guide piece, the third gear is in threaded connection with the guide piece, the induction piece is movably arranged on the guide piece, and the induction piece is positioned above the third gear; The second gear is positioned between the first gear and the third gear, the first gear is meshed with the second gear, the second gear is meshed with the third gear, and central axes of the first gear, the second gear and the third gear are parallel and extend along the vertical direction.
3. The photographing device for blood samples as claimed in claim 2, wherein the sensing member comprises a sleeve and a sensing piece, the sleeve is sleeved on the guiding member, and the sensing piece is connected with the periphery of the sleeve.
4. The photographing device for blood samples according to claim 3, wherein the sleeve is provided with a guide hole, the guide hole is long and extends in the vertical direction, the guide piece is provided with a limiting piece, and the limiting piece is arranged in the guide hole in a penetrating manner.
5. The photographing device for a blood sample of claim 1, wherein said first sensor is disposed on a first support, said second sensor is disposed on a second support, and said first support is disposed above said second support.
6. The photographing device for a blood sample according to claim 5, wherein the first support and the second support each comprise a first plate and a second plate, the first plate and the second plate are disposed opposite to each other in a front-rear direction, a gap is maintained between the first plate and the second plate, the first sensor is disposed on the first plate or the second plate of the first support, and the second sensor is disposed on the first plate or the second plate of the second support.
7. The photographing device for blood samples as claimed in claim 6, wherein the first support and the second support each further comprise a connection plate, and the first plate and the second plate are connected at one end and perpendicular to the same side of the connection plate.
8. The photographing device for blood samples as claimed in claim 3, wherein the guide member has a column shape, and a limit part is provided at an upper end of the guide member to limit the sleeve from being separated from the guide member.
9. The photographing device for blood samples according to claim 2, further comprising a housing, wherein the camera assembly, the sensing assembly, the driving assembly and the transmission assembly are all disposed in the housing, a through hole is formed in the bottom of the housing, and the through hole is disposed opposite to the focusing lens.
10. The photographing device for blood samples as claimed in claim 9, wherein the guide member and the housing are provided with corresponding mounting holes, and the guide member and the housing are fixed by mounting fasteners in the mounting holes.

Description

Photographing device for blood sample Technical Field The present utility model relates to a photographing device for a blood sample. Background The blood sample is in a high-speed rotation state and forms a layering due to different component densities, red blood cells are red at the outermost layer, blood plasma is dark yellow at the innermost layer, white blood cells at the middle are white, red blood cells at the outermost layer and dark yellow blood plasma at the innermost layer are respectively moved from the centrifugal cavity through a peristaltic pump after layering, white blood cells at the middle are left, whether the transfer of the red blood cells at the outer layer and the blood plasma at the inner layer is completed or not is judged, photographing is carried out through a camera above the centrifugal cavity, the photograph shows that three layering with different colors are formed by the blood sample during centrifugation, and after the transfer of the red liquid at the outer layer and the dark yellow liquid at the inner layer is completed, the photograph can be identified through visual algorithm analysis, and the transfer of the liquid is stopped at the moment. At present, two cameras are available, namely a full-automatic focusing camera and a manual focusing camera, and the full-automatic focusing camera can automatically adjust the focal length according to the distance between the camera and a shooting object, but only can be used for a stationary object or a slowly moving object, and real-time focusing can not be completed for the object rotating or moving at a high speed. The manual focusing camera can manually adjust the focal length to finish focusing for objects with different distances respectively, but for the use situation that two containers with different height specifications need to be frequently switched, a user needs to manually adjust the focal length of the camera and confirm that focusing is perfect after switching different container specifications each time, and huge inconvenience is brought to practical use. Disclosure of utility model The utility model aims to provide a photographing device for a blood sample. In order to achieve the above purpose, the utility model adopts the following technical scheme: The photographing device for the blood sample comprises a camera assembly, a sensing assembly, a driving assembly and a transmission assembly, wherein the camera assembly comprises a main body lens and a focusing lens, the focusing lens is sleeved on the main body lens, and the focusing lens is in threaded connection with the main body lens; The sensing assembly comprises a sensing piece, a first sensor and a second sensor, wherein the first sensor is positioned above the second sensor, and the first sensor and the second sensor are used for sensing the sensing piece; The driving assembly is in transmission connection with the focusing lens and the sensing piece, the driving assembly drives the focusing lens to rotate relative to the main body lens through the driving assembly, and the sensing piece is driven to move in the up-down direction. According to some embodiments of the utility model, the driving assembly comprises a driving motor and a first gear, wherein the first gear is fixedly arranged on a driving shaft of the driving motor; The transmission assembly comprises a second gear, a guide piece and a third gear, wherein the second gear is fixedly arranged on the focusing lens, the third gear is arranged on the guide piece, the third gear is in threaded connection with the guide piece, the induction piece is movably arranged on the guide piece, and the induction piece is positioned above the third gear; The second gear is positioned between the first gear and the third gear, the first gear is meshed with the second gear, the second gear is meshed with the third gear, and central axes of the first gear, the second gear and the third gear are parallel and extend along the vertical direction. According to some embodiments of the utility model, the sensing element comprises a sleeve and a sensing piece, the sleeve is sleeved on the guiding element, and the sensing piece is connected with the periphery of the sleeve. According to some implementation aspects of the utility model, the sleeve is provided with a guide hole which is long and extends along the vertical direction, and the guide piece is provided with a limiting piece which is penetrated in the guide hole. According to some embodiments of the utility model, the first sensor is disposed on a first support, the second sensor is disposed on a second support, and the first support is disposed above the second support. According to some embodiments of the utility model, the first support and the second support each comprise a first plate and a second plate, the first plate and the second plate are disposed opposite to each other in a front-rear direction, a gap is kept between the first plate and the second p