Blood pusher sheet preparation device

Abstract

The present application relates to a blood push piece preparation device. The blood push piece preparation device comprises: a device body comprising a slide carrying mechanism and a push piece forming mechanism; the slide carrying mechanism has a slide seat for carrying a slide; the push piece forming mechanism has a push piece head, and the push piece head is located on one side of the slide seat in a first direction; and a push piece tape cartridge is used for unwinding and outputting a push piece tape, and the push piece tape passes between the push piece head and the slide seat; wherein the push piece head is configured to be controllably moved to an initial position away from the slide seat or a push piece position close to the slide seat in the first direction; when the push piece head moves to the push piece position, an end of the push piece head towards the slide seat is covered by the push piece tape, and the push piece head and the slide seat move relative to each other in a second direction perpendicular to the first direction, so that the push piece head performs a push piece operation on the slide on the slide seat.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection, in particular to a blood smearing device. BACKGROUND

[0002] Microscopic examination of blood smears is a basic method of blood cytology examination, and is of great value to diagnosis of various blood diseases, and is widely used in clinical examination.

[0003] Preparation of blood smears requires smearing operation on a slide, which is to smear a drop-shaped sample on the slide into a uniformly distributed shape. In the prior art, a disposable smearing head is installed on a smearing head of a blood smearing device, and the smearing head drives the smearing head to move to complete a smearing operation. In order to avoid mutual contamination between samples, the used smearing head needs to be removed before the next smearing operation, and a new smearing head needs to be installed on the smearing head. Therefore, a smearing storage mechanism, a smearing exit mechanism and a sheet changing mechanism need to be provided on the blood smearing device, resulting in complex structure and high manufacturing cost. SUMMARY

[0004] Therefore, it is necessary to provide a blood smearing device for improving the above defects in view of the problem of complex structure and high manufacturing cost of the blood smearing device in the prior art.

[0005] A blood smearing device comprises:

[0006] A device body comprises a slide bearing mechanism and a smearing forming mechanism; the slide bearing mechanism has a slide seat for bearing a slide; the smearing forming mechanism has a smearing head, and the smearing head is located on one side of the slide seat in a first direction; and

[0007] A smearing tape cartridge is used to output a smearing tape and make the smearing tape pass between the smearing head and the slide seat;

[0008] The smearing head is configured to be controllably moved to an initial position away from the slide seat or a smearing position close to the slide seat in the first direction; when the smearing head is moved to the smearing position, an end of the smearing head facing the slide seat is covered by the smearing tape, and the smearing head and the slide seat move relative to each other in a second direction perpendicular to the first direction, so that the smearing head performs smearing operation on the slide on the slide seat.

[0009] In one embodiment, the smearing head is configured to be controllably oscillated about an oscillation axis parallel to a third direction;

[0010] The smearing forming mechanism further comprises a mounting bracket, a lifting seat, a lifting drive assembly and an oscillation shaft.

[0011] The lifting seat is movably connected to the mounting frame in the first direction, the lifting driving assembly is drivingly connected to the lifting seat, the swing shaft is controllably rotatably connected to the lifting seat about the swing axis, and the push piece head is mounted on the swing shaft.

[0012] The third direction is perpendicular to the first direction and the second direction.

[0013] In one embodiment, the lifting driving assembly comprises a rotary driving member, a cam and a first elastic member.

[0014] The rotary driving member is mounted on the mounting frame, the cam is mounted on an output shaft of the rotary driving member and is in transmission cooperation with the lifting seat.

[0015] When the cam is driven to rotate by the rotary driving member, the cam provides a driving force for the lifting seat to move the push piece head from the initial position to the push piece position; and the first elastic member is connected to the mounting frame and the lifting seat respectively to provide a pre-tightening force for the lifting seat to move the push piece head from the push piece position to the initial position.

[0016] In one embodiment, the push piece forming mechanism further comprises a second elastic member, the push piece head is movably connected to the swing shaft in the first direction, and the second elastic member abuts between the swing shaft and the push piece head.

[0017] In one embodiment, the push piece forming mechanism comprises a mounting frame, and the push piece head is movably connected to the mounting frame in the first direction.

[0018] The push piece tape cartridge is replaceably mounted on the mounting frame.

[0019] In one embodiment, the push piece tape cartridge comprises a housing, and a pay-off shaft and a take-up shaft rotatably arranged in the housing.

[0020] The housing is replaceably mounted on the mounting frame, the pay-off shaft is used to pay off and output a push piece tape between the push piece head and the slide seat, and the take-up shaft is used to take up the push piece tape paid off and output by the pay-off shaft.

[0021] In one embodiment, the push piece forming mechanism further comprises a take-up driving assembly, the take-up driving assembly comprises a driving shaft and a take-up driving member, the driving shaft is rotatably connected to the mounting frame about an axis of the driving shaft and is in cooperation or separation with the take-up shaft, and the take-up driving member is drivingly connected to the driving shaft.

[0022] In one of the embodiments, the driving shaft comprises a first shaft body, a first adapter and a first torsion spring;

[0023] The first shaft body is rotatably connected to the mounting frame, and one end thereof is connected to the winding driving member, and the other end thereof is sleeved with the first adapter, and the first adapter is rotatable relative to the first shaft body;

[0024] The first shaft body has a first tooth groove, and the first adapter has a first matching tooth sleeved in the first tooth groove; in the circumferential direction of the first shaft body, the size of the first tooth groove is greater than the size of the first matching tooth;

[0025] The first torsion spring is sleeved on the first shaft body, and one force arm of the first torsion spring abuts against the side wall of the first tooth groove, and the other force arm of the first torsion spring abuts against the first matching tooth.

[0026] In one of the embodiments, the push piece forming mechanism further comprises a damping assembly, the damping assembly comprises a damping shaft and a damper, the damping shaft is rotatably connected to the mounting frame around the axis thereof, and is connected to or separated from the unwinding shaft; the damper is in transmission connection with the damping shaft.

[0027] In one of the embodiments, the push piece forming mechanism further comprises a moving seat movably connected to the mounting frame along the axial direction of the driving shaft and the damping shaft, the moving seat is used for replaceably mounting the push piece tape box, and has a separation position and a connection position during movement relative to the mounting frame;

[0028] When the moving seat moves to the separation position, the driving shaft is separated from the winding shaft, the damping shaft is separated from the unwinding shaft, and the push piece tape exits between the push piece head and the slide seat;

[0029] When the moving seat moves to the connection position, the driving shaft is connected to the winding shaft, the damping shaft is connected to the unwinding shaft, and the push piece tape passes through between the push piece head and the slide seat.

[0030] The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings.

[0031] Thus, the blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings.

[0033] Figure 2 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. Figure 1 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings.

[0034] Figure 3 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. Figure 1 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings.

[0035] The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. Figure 4 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. Figure 1 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings.

[0036] The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. Figure 5 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. Figure 1 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings.

[0037] The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. Figure 6 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. Figure 5 The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings. The blood push piece preparation device in the embodiment of the application is shown in the accompanying drawings.

[0038] Figure 7 Fig. 1 is a schematic view of a main shaft according to the present application; Figure 6 Fig. 2 is a schematic view of an exploded structure of the main shaft shown in Fig. 1;

[0039] Figure 8 Fig. 3 is a schematic view of a damping shaft according to the present application; Figure 6 Fig. 4 is a schematic view of an exploded structure of the damping shaft shown in Fig. 3;

[0040] Figure 9 Fig. 5 is a schematic view of a structure of a push piece tape cassette according to an embodiment of the present application;

[0041] Figure 10 Fig. 6 is a front view of the push piece tape cassette shown in Fig. 5; Figure 9

[0042] Fig. 7 is a schematic view of an internal structure of the push piece tape cassette shown in Fig. 5; Figure 11 Figure 9 Fig. 8 is a front view of the push piece tape cassette shown in Fig. 5 (the locking assembly is in a locked state);

[0043] Figure 12 Figure 9 Fig. 9 is a front view of the push piece tape cassette shown in Fig. 5 (the locking assembly is in an unlocked state);

[0044] Figure 13 Fig. 10 is a schematic view of a structure of a control member of the locking assembly of the push piece tape cassette shown in Fig. 5; Figure 9

[0045] Fig. 11 is a schematic view of a structure of a second locking member of the locking assembly of the push piece tape cassette shown in Fig. 5. Figure 14 Figure 9

[0046] Figure 15 Figure 9 DETAILED DESCRIPTION

[0047] In order to make the above objects, features and advantages of the present application more clear and easily understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many different ways from those described herein, and those skilled in the art can make similar improvements without departing from the scope of the present application, and thus the present application is not limited to the specific embodiments disclosed below.

[0048] ​​​​​​In the description of the application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0049] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0050] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0052] It is to be understood that when an element as a preamble is referred to as being "on" or "connected" to another element, it can be directly on or connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0053] Referring to Figures 1 to 3 , an embodiment of the present application provides a blood push slice preparation device, comprising a device body (not labeled in the figure) and a push slice tape box 1. The device body comprises a slide carrying mechanism 20 and a push slice forming mechanism 30. The slide carrying mechanism 20 has a slide seat 21 for carrying a slide A. The push slice forming mechanism 30 has a push slice head 31, and the push slice head 31 is located on one side of the slide seat 21 in a first direction X. The push slice tape box 1 is used to output a push slice tape B, and the push slice tape B passes between the push slice head 31 and the slide seat 21.

[0054] Wherein, the push slice head 31 is configured to be controllably moved to an initial position (see Figure 1 and Figure 2 illustrated) away from the slide seat 21 or a push slice position (see Figure 4 illustrated) close to the slide seat 21 along the first direction X. When the push slice head 31 moves to the push slice position, the push slice head 31 is covered by the push slice tape B, and the push slice head 31 and the slide seat 21 generate relative motion in a second direction Y, so that the part of the push slice head 31 covered by the push slice tape B performs a push slice operation on the slide A on the slide seat 21.

[0055] The above-mentioned blood push slice preparation device, in actual use, first, the slide A is placed on the slide seat 21, and the push slice head 31 is controlled to move from the initial position to the push slice tape B and the slide seat 21 along the first direction X (such as Figure 2 downward), until reaching the push slice position. At this time, the end of the push slice head 31 facing the slide seat 21 is covered by the push slice tape B, and the end of the push slice head 31 covered by the push slice tape B is in contact with the slide A on the slide seat 21. Then, the push slice head 31 and the slide seat 21 are controlled to generate relative motion in the second direction Y, so that the end of the push slice head 31 covered by the push slice tape B moves along the slide seat 21 to perform a push slice operation, that is, the drop-shaped specimen on the slide A is pushed away to be evenly distributed. After the push slice operation is completed, the push slice head 31 is reset from the push slice position to the initial position along the first direction X (that is, as Figure 2The push piece head 31 is separated from the push piece belt B. Before the next push piece operation, the push piece belt box 1 is first used to continue to output a length of the push piece belt B downstream, so that the part of the push piece belt B contaminated by the sample during the last push piece operation moves downstream, so that the push piece belt B between the push piece head 31 and the slide seat 21 is not contaminated, thereby avoiding mutual contamination between samples during the next push piece operation.

[0056] Thus, the push piece head 31 is isolated from the sample on the slide A by the push piece belt B in the above-mentioned blood push piece preparation device, and the push piece belt B can be transported downstream, so that the push piece head 31 is covered with uncontaminated push piece belt B before each push piece operation, thereby realizing continuous push piece operation. Compared with the prior art of installing a disposable push piece on the push piece head 31, it is not necessary to configure a push piece storage mechanism, a push piece exit mechanism and a push piece replacement mechanism, thereby greatly simplifying the structure of the blood push piece preparation device and reducing the manufacturing cost.

[0057] In some embodiments, the push piece head 31 is configured to be controllably oscillated about an oscillation axis parallel to the third direction Z. The third direction Z is perpendicular to both the first direction X and the second direction Y. Thus, the angle (i.e., the push piece angle a) of the push piece head 31 relative to the slide A on the slide seat 21 is adjusted by the oscillation of the push piece head 31 about the oscillation axis, which is beneficial to improve the push piece effect and thereby improve the quality of the blood push piece.

[0058] Specifically, the push piece forming mechanism 30 further includes a mounting frame 32, a lifting seat 33, a lifting drive assembly (not marked in the figure) and an oscillation shaft 35. The lifting seat 33 is movably connected to the mounting frame 32 along the first direction X. The lifting drive assembly is drivingly connected to the lifting seat 33 to drive the lifting seat 33 to move along the first direction X. The oscillation shaft 35 is rotatably connected to the lifting seat 33, and the rotation axis of the oscillation shaft 35 is the above-mentioned oscillation axis. The push piece head 31 is mounted on the oscillation shaft 35, so that the push piece head 31 is oscillated by the oscillation shaft 35, thereby achieving the purpose of adjusting the push piece angle a.

[0059] Further, the lifting drive assembly includes a rotary drive member 341, a cam 342 and a first elastic member 343 (see Figure 5 ). The rotary drive member 341 is mounted on the mounting frame 32, the cam 342 is mounted on the output shaft of the rotary drive member 341 and is in transmission cooperation with the lifting seat 33. When the cam 342 is driven to rotate by the rotary drive member 341, a driving force is provided to the lifting seat 33 to drive the push piece head 31 to move from the initial position to the push piece position (i.e., to move downward as shown in Figure 2 ). The first elastic member 343 is connected to the mounting frame 32 and the lifting seat 33 respectively, and provides a driving force to the lifting seat 33 to drive the push piece head 31 to move from the push piece position to the initial position (i.e., to move upward as shown inFigure 2 When the push piece head 31 needs to be pushed, the rotating driving member 341 drives the cam 342 to rotate, and the lifting seat 33 is driven to move downward (at this time, the lifting seat 33 moves downward against the pre-tightening force provided by the first elastic member 343) by the transmission cooperation between the cam 342 and the lifting seat 33, until the push piece head 31 moves downward to the push piece position together with the lifting seat 33, at this time, the push piece head 31 is covered by the push piece band B, and is in contact with the slide A on the slide seat 21, so as to facilitate the push piece operation of the push piece head 31 on the slide A when the push piece head 31 and the slide seat 21 move relatively in the second direction Y. When the push piece operation is completed, the rotating driving member 341 drives the cam 342 to rotate, and the lifting seat 33 moves upward under the action of the pre-tightening force provided by the first elastic member 343, until the push piece head 31 moves upward to the initial position together with the lifting seat 33, at this time, the push piece head 31 is separated from the push piece band B, so as to facilitate the downstream movement of the push piece band B. Optionally, the rotating driving member 341 can be a motor. The first elastic member 343 can be a tension spring.

[0060] Further, the mounting frame 32 is provided with a first sliding rail 322 extending longitudinally along the first direction X, and the lifting seat 33 is provided with a first sliding block 331 in sliding cooperation with the first sliding rail 322. In this way, the first sliding block 331 is used to slide along the first sliding rail 322 to guide the movement of the lifting seat 33 relative to the mounting frame 32 along the first direction X, so that the movement of the lifting seat 33 is more stable and reliable.

[0061] Specifically, the push piece forming mechanism 30 further comprises a second elastic member 312, the push piece head 31 is movably connected to the swing shaft 35 along the first direction X, and the second elastic member 312 abuts between the swing shaft 35 and the push piece head 31 to play a buffering role on the push piece head 31. In this way, when the push piece head 31 moves from the initial position to the push piece position, under the buffering action of the second elastic member 312, the impact of the push piece head 31 on the slide A is avoided, so as to prevent the slide A from being damaged. Optionally, the second elastic member 312 can be a compression spring.

[0062] It should be noted that the push piece forming mechanism 30 is not limited to the structure in the above embodiment to realize the movement of the push piece head 31 along the first direction X and the swing around the swing axis. In other embodiments, other structures can also be used to realize, for example: the lifting driving assembly is installed on the swing shaft 35, so that the lifting driving assembly swings with the swing shaft 35. At the same time, the push piece head 31 is installed on the driving end of the lifting driving assembly, so that the lifting driving assembly can drive the push piece head 31 to move along the first direction X.

[0063] Please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, in the embodiment of the present application, the push strip cartridge 1 is replaceably mounted on the mounting rack 32. In this way, when the push strip B in the push strip cartridge 1 is unwound, the push strip cartridge 1 can be removed and a new push strip cartridge 1 can be mounted to continue the push strip operation, which is convenient and quick and reduces downtime.

[0064] In some embodiments, the push strip cartridge 1 comprises a housing 10 (see Figure 11 ), and an unwinding shaft 11 (see Figure 11 ) and a winding shaft 12 (see Figure 11 ) rotatably arranged in the housing 10. The housing 10 is replaceably mounted on the mounting rack 32, the unwinding shaft 11 is used to unwind and output the push strip B between the push head 31 and the slide seat 21. The winding shaft 12 is used to wind the push strip B unwound by the unwinding shaft 11. In this way, when the push head 31 moves to the push position and performs the push strip operation, the unwinding shaft 11 is in a state of stopping unwinding, and the winding shaft 12 is in a state of stopping winding. When the push strip operation is completed, the push head 31 moves to the initial position, the unwinding shaft 11 unwinds and outputs the push strip B of a moving length, and the winding shaft 12 winds the push strip B of a corresponding length, until the push strip B between the push head 31 and the slide seat 21 is not contaminated, ready for the next push strip operation.

[0065] In specific embodiments, the push strip forming mechanism 30 further comprises a winding drive assembly, which comprises a driving shaft 383 and a winding drive member 384. The driving shaft 383 is rotatably connected to the mounting rack 32 about its own axis, and is coupled or decoupled with the winding shaft 12. The winding drive member 384 is drivingly connected with the driving shaft 383 to drive the driving shaft 383 to rotate. In this way, when the push strip cartridge 1 is mounted to the mounting rack 32 in place, the driving shaft 383 is coupled with the winding shaft 12, so that the winding drive member 384 drives the winding shaft 12 to rotate through the driving shaft 383, thereby pulling the push strip B to wind on the winding shaft 12, while driving the unwinding shaft 11 to rotate to unwind and output the push strip B; when the push strip cartridge 1 is removed from the mounting rack 32, the driving shaft 383 is decoupled from the winding shaft 12.

[0066] Referring to Figure 6 and Figure 7As shown, in particular embodiments, the driving shaft 383 comprises a first shaft body 3831, a first adapter 3832 and a first torsion spring 3833. The first shaft body 3831 is rotatably connected to the mounting frame 32, and one end thereof is connected to the winding driving member 384, and the other end thereof is sleeved with the first adapter 3832, and the first adapter 3832 is rotatable relative to the first shaft body 3831. The first shaft body 3831 has a first tooth groove d, and the first adapter 3832 has a first matching tooth e which is inserted into the first tooth groove d. In the circumferential direction of the first shaft body 3831, the size of the first tooth groove d is greater than the size of the first matching tooth e, so that when the first adapter 3832 rotates relative to the first shaft body 3831, the first matching tooth e can move in the first tooth groove d, that is, by using the restriction of the first tooth groove d to the first matching tooth e in the circumferential direction of the first shaft body 3831, the angle range of the rotation of the first adapter 3832 relative to the first shaft body 3831 is limited.

[0067] The first torsion spring 3833 is sleeved on the first shaft body 3831, and one force arm of the first torsion spring 3833 abuts against the side wall of the first tooth groove d, and the other force arm of the first torsion spring 3833 abuts against the first matching tooth e, so as to ensure that the first matching tooth e is closely attached to one side wall of the first tooth groove d when no external force is applied, thereby avoiding the rotation of the first adapter 3832 relative to the first shaft body 3831.

[0068] In this way, during the movement of the push piece head 31 from the initial position to the push piece position, the push piece head 31 drives the push piece belt B to move towards the slide seat 21, so that the push piece belt B covers one end of the push piece head 31 towards the slide seat 21. At the same time, under the action of the force applied by the push piece head 31 to the push piece belt B, the push piece belt B drives the winding shaft 12 and the first adapter 3832 connected thereto to rotate a certain angle against the elastic force of the first torsion spring 3833, thereby releasing a section of the push piece belt B, and further avoiding the push piece belt B from being torn or broken.

[0069] It should be noted that when the pusher belt B is outputted, the winding shaft 12 rotates to pull the pusher belt B to be wound on the winding shaft 12, and the pusher belt B drives the unwinding shaft 11 to rotate, so that the unwinding shaft 11 unwinds and outputs the pusher belt B. However, when the winding shaft 12 stops rotating, the unwinding shaft 11 continues to rotate due to inertia and continues to unwind the pusher belt B, so that the pusher belt B between the unwinding shaft 11 and the winding shaft 12 is too long and is in a slack state, which causes the pusher belt B to be unable to be wrapped on the pusher head 31 or to be wrapped too loosely. In order to solve this problem, in the embodiment, the pusher forming mechanism 30 further comprises a damping assembly (not marked in the figure), which comprises a damping shaft 381 and a damper 382. The damping shaft 381 is rotatably connected to the mounting frame 32 about its own axis, and is matched or separated with the unwinding shaft 11. The damper 382 is in transmission connection with the damping shaft 381, so as to block the rotation of the damping shaft 381 by using the damper 382, thereby achieving the purpose of blocking the rotation of the unwinding shaft 11.

[0070] In this way, when the winding shaft 12 stops rotating, the unwinding shaft 11 and the damping shaft 381 matched therewith can immediately stop rotating under the blocking action of the damper 382, so that the pusher belt B between the unwinding shaft 11 and the winding shaft 12 is in a tension state, and thereby the pusher belt B can be tightly wrapped on the pusher head 31 when the pusher head 31 moves to the pusher position.

[0071] Please refer to Figure 6 and Figure 8 Further, the damping shaft 381 comprises a second shaft body 3811, a second matching head 3812 and a second torsional spring 3813. The second shaft body 3811 is rotatably connected to the mounting frame 32, and one end thereof is connected to the damper 382, and the other end thereof is sleeved with the second matching head 3812. Moreover, the second matching head 3812 is rotatable relative to the second shaft body 3811.

[0072] The second shaft body 3811 has a second tooth groove g, and the second matching head 3812 has a second matching tooth h inserted into the second tooth groove g. In the circumferential direction of the second shaft body 3811, the size of the second tooth groove g is greater than the size of the second matching tooth h, so that the second matching tooth h can move in the second tooth groove g when the second matching head 3812 rotates relative to the second shaft body 3811, that is, the second tooth groove g is used to limit the second matching tooth h in the circumferential direction of the second shaft body 3811, so as to limit the angle range of the rotation of the second matching head 3812 relative to the second shaft body 3811.

[0073] The second torsion spring 3813 is sleeved on the second shaft body 3811, and one force arm of the second torsion spring 3813 abuts against a side wall of the second tooth groove g, and the other force arm of the second torsion spring 3813 abuts against the second matching tooth h, so as to ensure that the second matching tooth h is tightly combined with the side wall of the second tooth groove g when no external force is applied, and the second adapter 3812 is prevented from rotating relative to the second shaft body 3811.

[0074] Therefore, during the movement of the push piece head 31 from the initial position to the push piece position, the push piece head 31 drives the push piece belt B to move towards the slide seat 21, so that the push piece belt B covers the end of the push piece head 31 towards the slide seat 21. At the same time, under the action of the force applied by the push piece head 31 to the push piece belt B, the push piece belt B drives the unwinding shaft 11 and the second adapter 3812 matched thereto to rotate a certain angle against the elastic force of the second torsion spring 3813, so as to release a section of the push piece belt B, thereby avoiding that the push piece belt B is torn or broken.

[0075] Please continue to refer to Figure 5 As shown in the figure, in the embodiment of the application, the push piece forming mechanism 30 further comprises a moving seat 36 movably connected to the mounting frame 32 along the axial direction of the driving shaft 383 and the damping shaft 381. The moving seat 36 is used to replaceably install the push piece belt box 1, and the moving seat 36 has a disengaged position and an engaged position during the movement relative to the mounting frame 32.

[0076] When the moving seat 36 moves to the disengaged position, the driving shaft 383 is disengaged from the winding shaft 12, the damping shaft 381 is disengaged from the unwinding shaft 11, and the push piece belt B between the winding shaft 12 and the unwinding shaft 11 exits between the push piece head 31 and the slide seat 21, so as to facilitate the dismounting of the push piece belt box 1 from the moving seat 36 and the installation of a new push piece belt box 1 on the moving seat 36. When the moving seat 36 moves to the engaged position, the driving shaft 383 is engaged with the winding shaft 12, the damping shaft 381 is engaged with the unwinding shaft 11, and the push piece belt B between the winding shaft 12 and the unwinding shaft 11 passes through between the push piece head 31 and the slide seat 21, so that when the push piece head 31 moves from the initial position to the push piece position, the push piece belt B covers the push piece head 31.

[0077] When the push strip tape B in the push strip tape cartridge 1 is unwound, the push strip tape cartridge 1 needs to be replaced. First, the moving seat 36 is moved from the matching position to the separation position, so that the driving shaft 383 and the damping shaft 381 are separated from the winding shaft 12 and the unwinding shaft 11 of the push strip tape cartridge 1 respectively, and the push strip tape B between the winding shaft 12 and the unwinding shaft 11 is out of the push head 31 and the slide seat 21. Then, the push strip tape cartridge 1 on the moving seat 36 is removed, and a new push strip tape cartridge 1 is placed on the moving seat 36. Finally, the moving seat 36 is moved to the matching position again, so that the driving shaft 383 and the damping shaft 381 are matched with the winding shaft 12 and the unwinding shaft 11 of the push strip tape cartridge 1 respectively, so that the driving shaft 383 can drive the winding shaft 12 to rotate, and the damping shaft 381 can retard the rotation of the unwinding shaft 11 under the action of the damper 382.

[0078] Please refer to Figure 1 and Figure 2 In an embodiment of the present application, the slide seat 21 is movably connected to the mounting frame 32 in the second direction Y. The slide carrying mechanism 20 further comprises a translation assembly installed on the mounting frame 32 and drivingly connected to the slide seat 21 to drive the slide seat 21 to move relative to the push head 31 in the second direction Y, so that the push head 31 in the push position (at this time, the push strip tape B is wrapped on the push head 31) performs the push operation on the drop-shaped sample on the slide A carried on the slide seat 21.

[0079] In an embodiment, the translation assembly comprises a lead screw 22, a lead screw driving member 23 and a lead screw nut 24. The lead screw 22 is rotatably connected to the mounting frame 32 about its own axis, and the axial direction of the lead screw 22 is parallel to the second direction Y. The lead screw driving member 23 is installed on the mounting frame 32 and drivingly connected to the lead screw 22 to drive the lead screw 22 to rotate about its own axis. The lead screw nut 24 is threadedly connected to the lead screw 22, so that the lead screw 22 drives the lead screw nut 24 to move along the axial direction of the lead screw 22 (i.e. the second direction Y) when the lead screw 22 rotates. The lead screw nut 24 is fixedly connected to the slide seat 21, so that the slide seat 21 can move along the second direction Y together with the lead screw nut 24. Optionally, the lead screw driving member 23 can be a pneumatic cylinder.

[0080] It should be noted that the translation assembly is not limited to the structure of the lead screw pair to drive the slide seat 21 to move in the second direction Y. In other embodiments, the translation assembly can also use linear driving structures such as electric cylinders, pneumatic cylinders, gear racks, etc., which are not limited here.

[0081] Please refer to Figures 9 to 11As shown, in another aspect, the present application also provides a pusher tape cartridge 1. In embodiments of the present application, the pusher tape cartridge 1 comprises a housing 10, a pay-off shaft 11 and a take-up shaft 12. The housing 10 is replaceably mounted on the device body. The housing 10 has a receiving slot 101 through which a pusher head 31 passes. The receiving slot 101 has an opening 102. The pay-off shaft 11 is rotatably connected to the housing 10 for paying off the pusher tape B and allowing the pusher tape B to pass through the receiving slot 101. The take-up shaft 12 is rotatably connected to the housing 10 for taking up the pusher tape B.

[0082] The pusher head 31 is movable along the receiving slot 101 towards the opening 102 to a pushing position, such that the pusher tape B covers the portion of the pusher head 31 protruding out of the opening 102, and the portion of the pusher head 31 covered by the pusher tape B is used for the pushing operation.

[0083] Thus, when the pushing operation is needed, the pusher head 31 is moved along the receiving slot 101 (i.e. in the first direction X) from the initial position to the pushing position, such that the portion of the pusher head 31 protruding out of the opening 102 is covered by the pusher tape B and contacts the slide A on the slide holder 21. Then, the pusher head 31 and the slide holder 21 are relatively moved in the second direction Y, such that the portion of the pusher head 31 covered by the pusher tape B pushes the drop-shaped sample on the slide A to be uniformly distributed (i.e. the pushing operation is completed). After the pushing operation is completed, the pusher head 31 is moved along the receiving slot 101 from the pushing position to the initial position, such that the pusher head 31 is separated from the pusher tape B. Then, the pay-off shaft 11 and the take-up shaft 12 are rotated to move the pusher tape B downstream by a certain distance, such that the pusher tape B between the pusher head 31 and the slide holder 21 is not contaminated, and is ready for the next pushing operation.

[0084] In embodiments, the take-up shaft 12 has a power connection hole 121 for detachably mating with the first adapter 3832 of the driving shaft 383 to be driven by the driving shaft 383 to rotate the take-up shaft 12. The pay-off shaft 11 has a damping connection hole 111 for detachably mating with the damping shaft 381 to damp the rotation of the pay-off shaft 11.

[0085] Further, one of the inner wall of the power connection hole 121 and the outer wall of the first adapter 3832 has first transmission teeth f (see Figure 7 ), and the other of the inner wall of the power connection hole 121 and the outer wall of the first adapter 3832 has first transmission tooth grooves 1211. When the first adapter 3832 is mated into the power connection hole 121, the first transmission teeth f engage with the first transmission tooth grooves 1211, so as to transmit the rotational movement of the first adapter 3832 to the take-up shaft 12.

[0086] Further, one of the inner wall of the damping connecting hole 111 and the outer wall of the second adapter 3812 has a second transmission tooth i (see Figure 8 ), and the other of the inner wall of the damping connecting hole 111 and the outer wall of the second adapter 3812 has a second transmission tooth groove 1111. When the second adapter 3812 is adapted into the damping connecting hole 111, the second transmission tooth i is engaged with the second transmission tooth groove 1111, so as to transmit the damping force of the damper 382 to the unwinding shaft 11, and realize the damping of the unwinding shaft 11.

[0087] Please refer to Figures 11 to 13 In some embodiments, the pusher tape cartridge 1 further comprises a locking assembly 13, which is configured to be controllably switched between a locking state (see Figure 12 ) and a non-locking state (see Figure 13 ). When the locking assembly 13 is in the locking state, the locking assembly 13 is in rotational stop cooperation with the unwinding shaft 11 and the winding shaft 12, so as to prevent the unwinding shaft 11 and the winding shaft 12 from rotating; when the locking assembly 13 is in the non-locking state, the locking assembly 13 is separated from the unwinding shaft 11 and the winding shaft 12, so as to allow the unwinding shaft 11 and the winding shaft 12 to rotate. Specifically, before the pusher tape cartridge 1 is installed on the device body, the locking assembly 13 is in the locking state, so as to prevent the unwinding shaft 11 and the winding shaft 12 from rotating, and avoid the unwinding shaft 11 and / or the winding shaft 12 from rotating randomly to cause the pusher tape B between the unwinding shaft 11 and the winding shaft 12 to be too long and in a slack state. When the pusher tape cartridge 1 is installed on the device body, the locking assembly 13 is in the non-locking state, so that the unwinding shaft 11 and the winding shaft 12 rotate under the action of the driving shaft 383 and the damping shaft 381 respectively, and realize the unwinding output of the pusher tape B.

[0088] Please refer to Figures 12 to 15 Specifically, in embodiments, the locking assembly 13 comprises a first locking piece 132, a second locking piece 133 and a control piece 131, which are all rotatably connected to the housing 10. The first locking piece 132 has a first locking portion 1322 and a first force receiving portion 1321, the second locking piece 133 has a second locking portion 1332 and a second force receiving portion 1331, and the control piece 131 has a transmission portion 1312 and an operation portion 1311. The transmission portion 1312 is in transmission cooperation with the first force receiving portion 1321 and the second force receiving portion 1331, so that when the control piece 131 rotates, the first locking piece 132 and the second locking piece 133 can be driven to rotate by the transmission portion 1312.

[0089] The operation part 1311 of the control member 131 is capable of rotating and switching between the locking position and the non-locking position under the action of external force. When the operation part 1311 of the control member 131 rotates to the locking position, the control member 131 drives the first locking member 132 to rotate to the first locking part 1322 to stop the rotation of the unwinding shaft 11 through the transmission part 1312 and the first force receiving part 1321, thereby preventing the unwinding shaft 11 from rotating. At the same time, the control member 131 drives the second locking member 133 to rotate to the second locking part 1332 to stop the rotation of the winding shaft 12 through the transmission part 1312 and the second force receiving part 1331, thereby preventing the winding shaft 12 from rotating. It can be understood that at this time, the locking assembly 13 is in the above-mentioned locking state.

[0090] When the operation part 1311 of the control member 131 rotates to the non-locking position, the control member 131 drives the first locking member 132 to rotate to separate from the unwinding shaft 11 through the transmission part 1312 and the first force receiving part 1321, thereby allowing the unwinding shaft 11 to rotate. At the same time, the control member 131 drives the second locking member 133 to rotate to separate from the winding shaft 12 through the transmission part 1312 and the second force receiving part 1331, thereby allowing the winding shaft 12 to rotate. It can be understood that at this time, the locking assembly 13 is in the above-mentioned non-locking state.

[0091] Specifically in the embodiment, the locking assembly 13 further comprises a third elastic member (not shown in the figure), which is connected between the housing 10 and the control member 131, and is used to provide a pre-tightening force for driving the operation part 1311 of the control member 131 to rotate from the non-locking position to the locking position. In this way, when the external force acting on the operation part 1311 of the control member 131 disappears, the control member 131 rotates from the non-locking position to the locking position under the action of the pre-tightening force provided by the third elastic member, so that the locking assembly 13 is in the locking state and prevents the unwinding shaft 11 and the winding shaft 12 from rotating. When the operation part 1311 of the control member 131 bears the external force, the control member 131 rotates to the non-locking position against the pre-tightening force provided by the third elastic member under the action of the external force, allowing the unwinding shaft 11 and the winding shaft 12 to rotate. Optionally, the third elastic member can be a torsional spring.

[0092] In the embodiment, the locking assembly 13 further comprises a fourth elastic member 135 connected between the housing 10 and the first locking member 132, for providing a pre-tightening force for rotating the first locking member 132 from the position where the first locking portion 1322 is separated from the unwinding shaft 11 to the position where the first locking portion 1322 is in the rotation-stopping cooperation with the unwinding shaft 11. Thus, when the external force applied to the operation portion 1311 of the control member 131 disappears, the control member 131 is rotated from the non-locking position to the locking position under the pre-tightening force provided by the third elastic member, and the first locking member 132 is rotated from the position where the first locking portion 1322 is separated from the unwinding shaft 11 to the position where the first locking portion 1322 is in the rotation-stopping cooperation with the unwinding shaft 11 under the pre-tightening force provided by the fourth elastic member 135, so as to prevent the unwinding shaft 11 from rotating. When the operation portion 1311 of the control member 131 bears the external force, the control member 131 is rotated to the non-locking position against the pre-tightening force of the third elastic member under the action of the external force, and the first locking member 132 is rotated to the position where the first locking portion 1322 is separated from the unwinding shaft 11 against the pre-tightening force provided by the fourth elastic member 135 under the driving of the transmission portion 1312 of the control member 131, so as to allow the unwinding shaft 11 to rotate. Optionally, the fourth elastic member 135 can be a torsion spring.

[0093] In the embodiment, the locking assembly 13 further comprises a fifth elastic member 136 connected between the housing 10 and the second locking member 133, for providing a pre-tightening force for rotating the second locking member 133 from the position where the second locking portion 1332 is separated from the winding shaft 12 to the position where the second locking portion 1332 is in the rotation-stopping cooperation with the winding shaft 12. Thus, when the external force applied to the operation portion 1311 of the control member 131 disappears, the control member 131 is rotated from the non-locking position to the locking position under the pre-tightening force provided by the third elastic member, and the second locking member 133 is rotated from the position where the second locking portion 1332 is separated from the winding shaft 12 to the position where the second locking portion 1332 is in the rotation-stopping cooperation with the winding shaft 12 under the pre-tightening force provided by the fifth elastic member 136, so as to prevent the unwinding shaft 11 from rotating. When the operation portion 1311 of the control member 131 bears the external force, the control member 131 is rotated to the non-locking position against the pre-tightening force of the third elastic member under the action of the external force, and the second locking member 133 is rotated to the position where the second locking portion 1332 is separated from the winding shaft 12 against the pre-tightening force provided by the fifth elastic member 136 under the driving of the transmission portion 1312 of the control member 131, so as to allow the winding shaft 12 to rotate. Optionally, the fifth elastic member 136 can be a torsion spring.

[0094] Further, the first locking disc 110 coaxially fixed on the unwinding shaft 11 has a plurality of first locking recesses 1101 arranged at intervals in the circumferential direction. The first locking portion 1322 on the first locking member 132 can rotate to locking cooperation or separation with a corresponding first locking recess 1101. Thus, when the operation portion 1311 rotates with the control member 131 to the locking position under the pre-tightening force provided by the third elastic member, the first locking member 132 rotates to the locking cooperation of the first locking portion 1322 with the corresponding first locking recess 1101 of the first locking disc 110 under the pre-tightening force provided by the fourth elastic member 135, so as to prevent the rotation of the unwinding shaft 11. When the operation portion 1311 rotates with the control member 131 to the non-locking position under the external force, the first locking member 132 rotates to the separation of the first locking portion 1322 from the corresponding first locking recess 1101 of the first locking disc 110, so as to allow the rotation of the unwinding shaft 11.

[0095] Further, the second locking disc 120 coaxially fixed on the winding shaft 12 has a plurality of second locking recesses 1201 arranged at intervals in the circumferential direction. The second locking portion 1332 on the second locking member 133 can rotate to locking cooperation or separation with a corresponding second locking recess 1201. Thus, when the operation portion 1311 rotates with the control member 131 to the locking position under the pre-tightening force provided by the third elastic member, the second locking member 133 rotates to the locking cooperation of the second locking portion 1332 with the corresponding second locking recess 1201 of the second locking disc 120 under the pre-tightening force provided by the fifth elastic member 136, so as to prevent the rotation of the winding shaft 12. When the operation portion 1311 rotates with the control member 131 to the non-locking position under the external force, the control member 131 drives the second locking member 133 to rotate to the separation of the second locking portion 1332 from the corresponding second locking recess 1201 of the second locking disc 120, so as to allow the rotation of the winding shaft 12.

[0096] Specifically, when the moving seat 36 moves to the above-mentioned connecting position, the operation portion 1311 of the control member 131 abuts against the device body (for example, the mounting frame 32), so that under the abutting force (i.e. the above-mentioned external force acting on the operation portion 1311) applied to the operation portion 1311 by the device body, the operation portion 1311 rotates with the control member 131 to the non-locking position, thereby allowing the rotation of the unwinding shaft 11 and the winding shaft 12. When the moving seat 36 moves to the above-mentioned separating position, the operation portion 1311 of the control member 131 is separated from the device body (for example, the mounting frame 32) (i.e. the external force acting on the operation portion 1311 disappears), so that under the pre-tightening force provided by the third elastic member, the operation portion 1311 rotates with the control member 131 to the locking position, thereby preventing the rotation of the unwinding shaft 11 and the winding shaft 12.

[0097] Please continue to refer to Figure 9 and Figure 10 As shown in FIG. 1, in some embodiments, the accommodation groove 101 has a closed end 103 and an opening 102 at two ends in the first direction X. The push band cassette 1 further comprises a guide band assembly comprising guide band posts mounted on the housing 10. The guide band posts are arranged on both sides of the opening 102 of the accommodation groove 101 in the second direction Y perpendicular to the first direction X, that is, the guide band posts are arranged on both sides of the opening 102 of the accommodation groove 101 in the second direction Y. The guide band posts are used for guiding the push band B to pass through, so that the push band B output by the unwinding shaft 11 is guided to the winding shaft 12 for winding, and the push band B passes through the opening 102 of the accommodation groove 101. In this way, the guide band posts for guiding the push band B are arranged on both sides of the opening 102 in the second direction Y, so that when the push head 31 moves to the push position along the first direction X to the opening 102, the push band B can be closely attached to the end of the push head 31 facing the slide seat 21, avoiding the phenomenon of wrinkling or tearing of the push band B.

[0098] In specific embodiments, the housing 10 comprises an unwinding area 104 and a winding area 105 located on both sides of the accommodation groove 101 in the second direction Y. The unwinding shaft 11 is located in the unwinding area 104, and the winding shaft 12 is located in the winding area 105.

[0099] The guide band posts comprise a first guide band post 141, a second guide band post 142, and a third guide band post 143 for guiding the push band B to pass through. The first guide band post 141 and the second guide band post 142 are arranged in the unwinding area 104 to guide the push band B output by the unwinding shaft 11 into the opening 102 of the accommodation groove 101. The third guide band post 143 is arranged in the winding area 105 to guide the push band B that has passed through the opening 102 of the accommodation groove 101 to the winding shaft 12 for winding. In this way, the push band B is guided by the first guide band post 141, the second guide band post 142, and the third guide band post 143, so that the push band B is stable, further avoiding the phenomenon of wrinkling or tearing of the push band B when the push band B is wrapped on the push head 31.

[0100] Further, the guide band posts further comprise a fourth guide band post 144 arranged in the unwinding area 104 and upstream of the first guide band post 141 and the second guide band post 142. The fourth guide band post 144 is used to guide the push band B output by the unwinding shaft 11 into the space between the first guide band post 141 and the second guide band post 142, so that the guide band posts can smoothly enter the space between the first guide band post 141 and the second guide band post 142, and then pass through the opening 102 of the accommodation groove 101, further avoiding the phenomenon of wrinkling or tearing of the push band B when the push band B is wrapped on the push head 31.

[0101] In specific embodiments,Figure 10 In the illustrated embodiment, the push piece belt B output by the unwinding shaft 11 is first wound around the lower part of the fourth guide post 144, then passes between the first guide post 141 and the second guide post 142, further passes over the opening 102 of the accommodating groove 101, is wound around the lower part of the third guide post 143, and finally enters the winding shaft 12 to be wound.

[0102] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not contradict each other, they shall be deemed to be within the scope of the present disclosure.

[0103] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it shall not be understood as a limitation on the scope of the patent right of the present application. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these shall be deemed to be within the protection scope of the present application. Therefore, the protection scope of the patent right of the present application shall be subject to the appended claims.

Claims

1. A blood-pump tablet preparation apparatus, characterized in that, The device comprises a device body and a slide strip belt box. The device body comprises a slide strip bearing mechanism (20) and a slide strip forming mechanism (30). The slide strip bearing mechanism (20) has a slide strip seat (21) for bearing a slide strip (A). The slide strip forming mechanism (30) has a slide strip head (31) located on one side of the slide strip seat (21) in a first direction (X). The slide strip forming mechanism (30) further comprises a mounting frame (32). The slide strip belt box (1) comprises a shell (10) and a pay-off shaft (11) and a take-up shaft (12) rotatably arranged in the shell (10). The pay-off shaft (11) is used for paying off and outputting the slide strip (B) between the slide strip head (31) and the slide strip seat (21). The take-up shaft (12) is used for taking up the slide strip (B) paid off by the pay-off shaft (11). The slide strip forming mechanism (30) further comprises a damping assembly and a take-up driving assembly. The damping assembly comprises a damping shaft (381) and a damper (382). The damping shaft (381) is rotatably connected to the mounting frame (32) about its own axis and is connected to or separated from the pay-off shaft (11). The damper (382) is drivingly connected to the damping shaft (381). The take-up driving assembly comprises a driving shaft (383) and a take-up driving member (384). The driving shaft (383) comprises a first shaft body (3831), a first connecting head (3832) and a first torsional spring (3833). The first shaft body (3831) is rotatably connected to the mounting frame (32) and has one end connected to the take-up driving member (384) and the other end sleeved with the first connecting head (3832). The first connecting head (3832) is rotatable relative to the first shaft body (3831) and is connected to or separated from the take-up shaft (12). The first shaft body (3831) has a first tooth groove (d) and the first connecting head (3832) has a first matching tooth (e) inserted into the first tooth groove (d). In the circumferential direction of the first shaft body (3831), the size of the first tooth groove (d) is greater than the size of the first matching tooth (e). The first torsional spring (3833) is sleeved with the first shaft body (3831) and one force arm of the first torsional spring (3833) abuts against the side wall of the first tooth groove (d) and the other force arm abuts against the first matching tooth (e). The push piece head (31) is configured to be controllably moved to an initial position away from the slide seat (21) or a push piece position close to the slide seat (21) along the first direction (X); when the push piece head (31) is moved to the push piece position, the push piece head (31) is covered by the push piece belt (B) towards one end of the slide seat (21), and the push piece head (31) and the slide seat (21) are relatively moved in a second direction (Y) perpendicular to the first direction (X) to make the push piece head (31) perform a push piece operation on the slide (A) on the slide seat (21).

2. The blood pusher sheet preparation device according to claim 1, wherein The push piece head (31) is configured to be controllably oscillated around an oscillation axis parallel to a third direction (Z); The push piece forming mechanism (30) further comprises a lifting seat (33), a lifting driving assembly and an oscillation shaft (35); The lifting seat (33) is movably connected to the mounting frame (32) along the first direction (X), the lifting driving assembly is drivingly connected with the lifting seat (33), and the oscillation shaft (35) is controllably rotatably connected to the lifting seat (33) around the oscillation axis, and the push piece head (31) is mounted on the oscillation shaft (35). The third direction (Z) is perpendicular to the first direction (X) and the second direction (Y).

3. The blood pusher sheet preparation device according to claim 2, wherein The lifting driving assembly comprises a rotary driving member (341), a cam (342) and a first elastic member (343); The rotary driving member (341) is mounted on the mounting frame (32), the cam (342) is mounted on an output shaft of the rotary driving member (341) and is in transmission cooperation with the lifting seat (33); When the cam (342) is driven to rotate by the rotary driving member (341), a driving force is provided to the lifting seat (33) to drive the push piece head (31) to move from the initial position to the push piece position; the first elastic member (343) is connected with the mounting frame (32) and the lifting seat (33) respectively to provide a pre-tightening force to the lifting seat (33) to drive the push piece head (31) to move from the push piece position to the initial position.

4. The blood pusher sheet preparation device according to claim 3, wherein The push piece forming mechanism (30) further comprises a second elastic member (312), the push piece head (31) is movably connected to the oscillation shaft (35) along the first direction (X), and the second elastic member (312) abuts between the oscillation shaft (35) and the push piece head (31).

5. The blood pusher sheet preparation device according to claim 1, wherein The push piece head (31) is movably connected to the mounting frame (32) along the first direction (X); The push piece belt box (1) is replaceably mounted on the mounting frame (32).

6. The blood pusher sheet preparation device according to claim 1, wherein The push piece forming mechanism (30) further comprises a moving seat (36) movably connected to the mounting frame (32) along the axial direction of the driving shaft (383) and the damping shaft (381), the moving seat (36) is used for replaceably mounting the push piece belt box (1) and has a separation position and a matching position during movement relative to the mounting frame (32); When the moving seat (36) moves to the disengaging position, the driving shaft (383) is disengaged from the winding shaft (12), the damping shaft (381) is disengaged from the unwinding shaft (11), and the push piece belt (B) exits between the push piece head (31) and the slide seat (21); When the moving seat (36) moves to the engaging position, the driving shaft (383) is engaged with the winding shaft (12), the damping shaft (381) is engaged with the unwinding shaft (11), and the push piece belt (B) passes through between the push piece head (31) and the slide seat (21).

7. The blood pusher sheet preparation device according to claim 1, wherein The slide seat (21) is movably connected to the mounting frame (32) along a second direction (Y).

8. The blood pusher sheet preparation device according to claim 7, wherein The slide carrying mechanism (20) further comprises a translation assembly installed on the mounting frame (32) and drivingly connected with the slide seat (21), and the translation assembly is configured to drive the slide seat (21) to move along the second direction (Y).

9. The blood pusher sheet preparation device according to claim 8, wherein The translation assembly comprises: a lead screw (22) rotatably connected to the mounting frame (32) around its own axis, and the axial direction of the lead screw (22) is parallel to the second direction (Y); a lead screw driving member (23) installed on the mounting frame (32), the lead screw driving member (23) is drivingly connected with the lead screw (22), and the lead screw driving member (23) is configured to drive the lead screw (22) to rotate around its own axis; a lead screw nut (24) threadedly connected to the lead screw (22), and the slide seat (21) is fixedly connected with the lead screw nut (24).

10. The blood pusher sheet preparation device according to claim 9, wherein The lead screw driving member (23) is a pneumatic cylinder.

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