CN219018866U

CN219018866U - Slide loading attachment and slide scanning device

Info

Publication number: CN219018866U
Application number: CN202222750554.6U
Authority: CN
Inventors: 黄强; 吉雁鸿; 王子晗
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-05-12
Anticipated expiration: 2032-10-18

Abstract

The utility model provides a full-automatic slide feeding device and a slide scanning device, and relates to the technical field of medical appliances. The slide feeding device comprises a frame, a loading and unloading area and a slide pushing mechanism, wherein the loading and unloading area and the slide pushing mechanism are arranged on the frame, and the loading and unloading area is used for placing slides; the moving path of the pushing mechanism passes through the loading and unloading area, and the slide in the loading and unloading area receives pushing force under the movement of the pushing mechanism and is separated from the loading and unloading area. The utility model provides a slide feeding device and a slide scanning device, which reduce the connection relation by arranging a slide pushing mechanism and a slide withdrawing mechanism, and avoid crushing the slide by pushing and loading and unloading the slide, and have simpler structure.

Description

Slide loading attachment and slide scanning device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a full-automatic slide feeding device and a slide scanning device.

Background

Slide scanning detection is widely applied to pathology, hematology, cytology and other diagnosis, and is an indispensable work in medical research.

In order to meet the high throughput requirements of large hospitals, high throughput scanners have been developed. High throughput scanners typically employ a slide magazine, a jaw, and a stage arrangement, wherein the jaw is used to load slides in the slide magazine onto the stage.

But clamping jaw needs to satisfy simultaneously to snatch, release and drive the slide and remove in a plurality of directions, and relation of connection is comparatively complicated, and is unstable inadequately to the loading and unloading process of slide, easily crushes the slide, causes the damage of slide.

Disclosure of Invention

Aiming at the technical problems, the utility model provides the slide feeding device and the slide scanning device, by arranging the slide pushing mechanism and the slide withdrawing mechanism, the connection relation is reduced, the slides are assembled and disassembled in a pushing manner, the slide is prevented from being crushed, and the structure is simpler. The technical scheme is as follows:

the utility model particularly provides a slide feeding device which comprises a frame, a loading and unloading area and a slide pushing mechanism, wherein the loading and unloading area and the slide pushing mechanism are arranged on the frame, and the loading and unloading area is used for placing slides; the moving path of the pushing mechanism passes through the loading and unloading area, and the slide of the loading and unloading area receives pushing force under the movement of the pushing mechanism and is separated from the loading and unloading area.

Further, the pushing piece mechanism comprises a first pushing piece arm and a first driving piece in driving connection with the first pushing piece arm; the first driving piece drives the first pushing piece arm to enter and exit the loading and unloading area, and the stroke of the first pushing piece arm in the loading and unloading area is not smaller than the length of the loading and unloading area.

Further, the first driving piece comprises a driving structure and a guiding structure, the first pushing piece arm is connected to the guiding structure in a sliding mode, the driving structure is connected with the first pushing piece arm in a driving mode, and the first pushing piece arm is driven by the driving structure to enter and exit the loading and unloading area along the guiding structure.

The utility model particularly provides a slide scanning device which comprises a scanning mechanism for scanning a slide, a transfer mechanism and the slide feeding device, wherein the transfer mechanism is arranged on the frame, receives the slide separated from the loading and unloading area in a receiving area, and moves the slide to a scanning area of the scanning mechanism for scanning the slide.

Further, the width of the transfer mechanism is larger than that of the slide, and the transfer mechanism is provided with a horn-shaped opening, and the slide enters and exits the transfer mechanism at the opening.

Further, the device also comprises a driving component which is respectively in driving connection with the transfer mechanism, and the moving path of the transfer mechanism driven by the driving component at least passes through the bearing area and the scanning area.

Further, the device also comprises a sheet returning mechanism, wherein the moving path of the sheet returning mechanism passes through the transfer mechanism; the slide of the transfer mechanism receives the pushing force of the slide withdrawing mechanism in the receiving area and enters the loading and unloading area; the receiving area is matched with the loading and unloading area in position.

Further, the device also comprises a limiting mechanism arranged on the frame, wherein the limiting mechanism is provided with a clasping state; in the clasping state, the slide on the transfer mechanism is abutted against the transfer mechanism.

Further, the device also comprises a base which is in sliding connection with the frame, the middle part of the limiting mechanism is rotationally connected with the base, one end of the limiting mechanism is provided with an abutting part which extends towards the transfer mechanism, and the other end of the limiting mechanism is connected with the base through an elastic piece; when the clamping state is achieved, the elastic piece applies elastic force to the limiting mechanism so that the abutting part of the limiting mechanism rotates towards the transfer mechanism.

Further, the device also comprises a third driving piece and a fixing piece which are both arranged on the frame; the side wall of the limiting mechanism is further provided with an opening and closing piece, the third driving piece drives the opening and closing piece and the fixing piece to be close to each other and generate interaction force, and the fixing piece applies pressure to the opening and closing piece so that the abutting part of the limiting mechanism rotates in the direction away from the transfer mechanism.

The utility model has the beneficial effects that:

firstly, the force of the clamping jaw for grabbing the slide is difficult to control and the slide is easy to damage, and the slide in the loading and unloading area is pushed to the area needing to be loaded by the slide pushing mechanism, so that the slide only needs to be subjected to the thrust action in the whole process, and the possibility of crushing the slide is reduced.

Secondly, the process of clamping jaw getting and putting the slide needs to change the direction many times, involves the removal in three-dimensional space, and this device push away piece mechanism and move with moving the slide in the level face mainly, has reduced the relation of connection of part, and the process of loading and unloading slide is more stable.

Finally, the device is provided with a limiting mechanism, and the position of the slide on the transfer mechanism is fixed through the limiting mechanism, so that the slide is prevented from shifting, sliding and the like in the transfer process. Meanwhile, the limiting function of the limiting piece is an interval, and even if the size of a slide borne on the transfer mechanism changes, the limiting piece can still firmly prop against the transfer mechanism, so that the application range is enlarged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments of the present utility model will be briefly described below.

FIG. 1 is a schematic diagram of a pusher mechanism in one embodiment;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the transfer mechanism and the ejector mechanism in one embodiment;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view of a spacing mechanism in one embodiment;

fig. 6 is a top view of fig. 5.

The same reference numbers will be used throughout the drawings to refer to identical or similar parts or components.

1. A pushing mechanism; 11. a first pusher arm; 111. a first lever; 112. a second lever; 12. a first driving member; 121. a first motor; 122. a first drive wheel; 123. a first driven wheel; 124. a first belt; 125. a first slide rail;

2. a sheet withdrawal mechanism; 21. a second pusher arm; 211. a third lever; 212. a fourth lever; 22. a second driving member; 221. a second motor; 222. a second driving wheel; 223. a second driven wheel; 224. a second belt;

3. a transfer mechanism; 4. a limiting mechanism; 41. an abutting portion; 42. an opening and closing member; 43. a middle part; 44. and a tail part.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings. Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout, or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present specification, the terms "embodiment," "present embodiment," "in one embodiment," and the like, if used, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples; furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present specification, the terms "connected," "mounted," "secured," "disposed," "having," and the like are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of this specification, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In one embodiment, as shown in FIG. 1, a slide loading device includes a frame, a loading and unloading area, and a slide pushing mechanism 1. The loading and unloading area and the slide pushing mechanism 1 are arranged on the frame, and the loading and unloading area is used for placing slides. The moving path of the slide pusher 1 passes through the loading and unloading area, and the slide in the loading and unloading area receives a pushing force by the movement of the slide pusher 1 and is separated from the loading and unloading area. When the slide pushing device is used, the slide pushing mechanism 1 pushes out the slide in the loading and unloading area, and the slide falls into a position where loading is required and is subjected to subsequent experiments. Compared with other slide feeding devices similar to the clamping jaw, the slide feeding device has the advantages that the slide is required to be firstly grabbed and then transferred, the slide feeding device 1 in the embodiment can finish the slide feeding by only applying a pushing force to the slide, the structure is simple, the operation is easy, and the phenomenon that the clamping jaw clamps the slide to crush the slide is avoided.

In one embodiment, as shown in fig. 1, the tab mechanism 1 includes a first tab arm 11 and a first driver 12, the first driver 12 being drivingly connected to the first tab arm 11. The first driving member 12 drives the first pusher arm 11 into and out of the loading area, and the travel of the first pusher arm 11 in the loading area is not less than the length of the loading area. The frame is provided with a slide bin frame and a displacement mechanism, a storage space for slides is arranged in the slide bin frame, the displacement mechanism is in driving connection with the slide bin frame, and the moving path of each slide on the slide bin frame is driven to pass through the loading and unloading area. The first driving piece 12 comprises a driving structure and a guiding structure, the first pushing piece arm 11 is connected to the guiding structure in a sliding manner, the driving structure is connected with the first pushing piece arm 11 in a driving manner, and the first pushing piece arm 11 is driven by the driving structure to enter and exit the loading and unloading area along the guiding structure.

Specifically, as shown in fig. 2, the driving structure includes a first motor 121, a first driving wheel 122, a first driven wheel 123, and an endless first belt 124 stretched over two pulleys, and the first pusher arm 11 is fixedly connected to the first belt 124. The output shaft of the first motor 121 is in transmission connection with the first driving wheel 122, the first motor 121 drives the first driving wheel 122 to operate, the first driving wheel 122 drives the first belt 124 to move under the action of friction force, the first belt 124 drives the first driven wheel 123 to operate under the action of friction force, and therefore the first belt 124 can stably move.

The guide structure comprises a first slide rail 125, the first pushing piece arm 11 is connected with the first slide rail 125 in a sliding manner, the first pushing piece arm 11 fixed on the first belt 124 slides along the first slide rail 125 under the driving of the first belt 124, and the first pushing piece arm 11 is ensured to move straight stably towards the position where feeding is required. In other embodiments, the first driving member 12 may be configured as other driving mechanisms, for example, a linear motor is directly configured to drive and connect the first pusher arm 11 to translate, and an intermediate conversion device is not required, which is simple in structure and low in cost.

When the device is used, a slide is put into the slide bin frame, the slide to be scanned is confirmed, the slide bin frame is driven by the displacement mechanism, and the slide to be scanned is moved to the loading and unloading area. The slide pushing mechanism 1 works to push the slide in the loading and unloading area to move to a position where loading is needed. The first pusher arm 11 fixed on the first belt 124 moves along the first slide rail 125 under the drive of the first belt 124, so that the first pusher arm 11 provides a pushing force for the slide in the loading and unloading area, and pushes the slide out of the slide magazine rack and falls into the position to be loaded. Compared with a clamping jaw feeding mechanism, the slide in the embodiment is only pushed in one direction, the possibility of being crushed is avoided, the operation of clamping the slide is not needed, the time is saved, and the feeding efficiency is improved.

In one embodiment, as shown in fig. 2, the first pusher arm 11 includes a first rod 111 perpendicular to the first slide rail 125 in a horizontal plane and a second rod 112 parallel to the first slide rail 125 in a horizontal plane, one end of the first rod 111 is fixedly connected to the first belt 124 and slidingly connected to the first slide rail 125, the other end is fixedly connected to one end of the second rod 112, and the other end of the second rod 112 faces the direction in which the slide exits the slide magazine. The first belt 124 drives the first rod 111 to drive the second rod 112 to move to a position where feeding is needed, and the second rod 112 pushes the slide in the slide bin frame to exit the slide bin frame and fall into a position to be fed. The above configuration provides a space between the second rod 112 and the first drive member 12 that can be used to accommodate a slide magazine rack when scanning slides that are farther from the first drive member 12 so that the second rod 112 can contact and drive the slides to be scanned.

In one embodiment, as shown in fig. 4, a slide scanning device includes a transfer mechanism 3 and the slide loading device of any of the above embodiments. The scanning mechanism is used to scan the slide. The transfer mechanism 3 is provided on the frame, and the transfer mechanism 3 receives the slide separated from the loading/unloading area in the receiving area and moves the slide to the scanning area, and the scanning mechanism scans the slide in the scanning area, and the positions of the receiving area and the loading/unloading area are matched. Specifically, the slide scanning device further comprises a driving component, the driving component is in driving connection with the transfer mechanism 3, and the moving path of the transfer mechanism 3 driven by the driving component at least passes through the bearing area and the scanning area. The loading device pushes the glass slide in the loading and unloading area onto the transfer mechanism 3, and the transfer mechanism 3 transfers the glass slide to the scanning area to complete the scanning of the glass slide under the drive of the driving component. The glass slide in the loading and unloading area is transferred to the scanning area by the transfer mechanism 3, and various scanning instruments and observation instruments can be loaded, so that the loading of the glass slide is more flexible, and the application scene is wider. The drive assembly may comprise two drive members which are perpendicular to each other in a horizontal plane.

In one embodiment, as shown in fig. 4, the width of the transfer mechanism 3 is greater than the width of the slide so that the slide can be smoothly moved into and out of the transfer mechanism 3. The transfer mechanism 3 is provided with a horn-like opening where the slide enters and exits the transfer mechanism 3. Conventional openings, such as right angle openings, tend to strike the slide when slightly offset, while the trumpet-like opening can provide a guide for the slide to enter the transfer mechanism 3 smoothly; meanwhile, the arc edge is not easy to collide with the slide, and the slide is damaged.

In one embodiment, as shown in fig. 3 and 4, the slide scanning device further includes a slide withdrawal mechanism 2, and a moving path of the slide withdrawal mechanism 2 passes through the transfer mechanism 3. The slide of the transfer mechanism 3 receives the pushing force of the slide withdrawal mechanism 2 in the receiving area and enters the loading/unloading area. The receiving area is matched with the loading and unloading area in position. Specifically, the sheet withdrawal mechanism 2 is disposed on the frame, and the drive assembly drives the connection transfer mechanism 3 and the sheet withdrawal mechanism 2. After the slide on the transfer mechanism 3 finishes scanning in the scanning area, the driving component drives the transfer mechanism 3 to move to the receiving area, the driving component drives the slide withdrawing mechanism 2 to move to a position matched with the transfer mechanism 3, and the slide withdrawing mechanism 2 pushes the slide of the transfer mechanism 3 to the loading and unloading area to finish blanking of the slide. Subsequently, the displacement mechanism moves the slide bin frame to move other slides to be scanned to the loading and unloading area, and the processes of feeding, scanning and discharging are repeated, so that continuous and automatic feeding, discharging and scanning of a large number of slides are realized.

In one embodiment, as shown in fig. 3 and 4, the ejector mechanism 2 includes a second ejector arm 21 and a second driver 22. The second driving member 22 is in driving connection with the second pusher arm 21, and the second driving member 22 drives the second pusher arm 21 to move in the direction from the receiving area to the loading/unloading area. The second driving member 22 comprises a second motor 221, a second driving wheel 222, a second driven wheel 223 and an annular second belt 224 which is tensioned on two pulleys, and the second pushing arm 21 is fixedly connected with the second belt 224. The output shaft of the second motor 221 is in transmission connection with the second driving wheel 222, the second motor 221 drives the second driving wheel 222 to operate, the second driving wheel 222 drives the second belt 224 to move under the action of friction force, and the second belt 224 drives the second driven wheel 223 to operate under the action of friction force, so that the second belt 224 can stably move. The second pusher arm 21 fixed to the second belt 224 is moved by the drive of the second belt 224, so that the second pusher arm 21 provides an urging force in the direction from the receiving area to the loading and unloading area to the slide on the transfer mechanism 3, and pushes the scanned slide back to the slide magazine frame in the loading and unloading area.

In other embodiments, the second driving member 22 further includes a second sliding rail, the second pusher arm 21 is slidably connected to the second sliding rail, and the second pusher arm 21 fixed on the second belt 224 slides along the second sliding rail under the driving of the second belt 224, so as to ensure that the second pusher arm 21 can stably move straight along the first direction. In other embodiments, the second driving member 22 may be configured as other driving mechanisms, for example, a linear motor is directly configured to drive and connect the second pusher arm 21 to translate, and an intermediate conversion device is not required, which is simple in structure and low in cost.

In one embodiment, as shown in fig. 4, the second slide arm 21 includes a third rod 211 perpendicular to the second slide rail on a horizontal plane and a fourth rod 212 parallel to the second slide rail on a horizontal plane, one end of the third rod 211 is fixedly connected to the second belt 224 and slidingly connected to the second slide rail, the other end is fixedly connected to one end of the fourth rod 212, and the other end of the fourth rod 212 faces the direction in which the slide exits the slide ejector mechanism 2. The second belt 224 drives the third rod 211 to drive the fourth rod 212 to move towards the first direction, and the fourth rod 212 pushes the slide on the slide returning mechanism 2 to retract into the slide bin frame.

In one embodiment, as shown in fig. 4, the slide scanning device further includes a limiting mechanism 4 disposed on the frame, and the limiting mechanism 4 is provided with a clasping state. In the clasping state, the slide on the transfer mechanism 3 is propped against the transfer mechanism 3, so that when the drive assembly drives the transfer mechanism 3 to reciprocate between the bearing area and the scanning area, the slide and the transfer mechanism 3 do not relatively displace under the pressing action of the limiting piece, the slide is prevented from shifting to influence the scanning and blanking, and the slide is prevented from sliding, polluting and damaging the slide to influence the scanning work.

Specifically, as shown in fig. 4-6, the slide scanning device further includes a base, and the middle portion 43 of the limiting mechanism 4 is rotatably connected to the base, and the base is slidably connected to the frame. One end of the limiting mechanism 4 is provided with an abutting portion 41 extending toward the transfer mechanism 3, and the other end is connected to the base through an elastic member. In the clasped state, the elastic member applies an elastic force to the stopper mechanism 4 so that the abutting portion 41 of the stopper mechanism 4 rotates toward the transfer mechanism 3. The elastic member may be a spring, bungee cord, or the like. Specifically, the limiting mechanism 4 is in a rod shape, the middle 43 of the limiting mechanism 4 is rotatably connected to the base mechanism through a rotating shaft, the head of the limiting mechanism 4 protrudes towards the direction of the transfer mechanism 3 to form the abutting part 41, the tail 44 of the limiting mechanism 4 is connected to the base through a spring, and the elastic piece applies an elastic force to the tail 44 of the limiting mechanism 4, which is far away from the transfer mechanism 3, so that the abutting part 41 of the head of the limiting mechanism 4 rotates towards the transfer mechanism 3.

In one embodiment, as shown in FIGS. 4-6, the slide scanning device further includes a third drive member and a mount, both of which are disposed on the frame. The side wall of the limiting mechanism 4 is further provided with an opening and closing piece 42, the third driving piece drives the opening and closing piece 42 and the fixing piece to be close to each other and generate interaction force, the fixing piece applies pressure to the opening and closing piece 42, so that the abutting portion 41 of the limiting mechanism 4 rotates towards the direction away from the transfer mechanism 3, the abutting portion 41 of the limiting mechanism 4 loosens a slide on the transfer mechanism 3, the slide can freely enter and exit the transfer mechanism 3, and the slide is convenient to go up and down. The shutter 42 may be a roller.

Specifically, as shown in fig. 4 to 6, the stopper mechanism 4 is provided with an opening and closing member 42 protruding from a side thereof remote from the transfer mechanism 3, and the opening and closing member 42 is located in a region between the abutting portion 41 and the stopper middle portion 43. The fixing member is fixed on the frame, and the fixing member is disposed on a side of the opening and closing member 42 away from the elastic member. The third driving member drives and connects the limiting mechanism 4 and the frame, and the moving path of the opening and closing member 42 driven by the third driving member passes through the fixing member. When the third driving piece drives the opening and closing piece 42 to abut against the fixing piece, the fixing piece applies pressure to the opening and closing piece 42, so that the abutting portion 41 of the limiting mechanism 4 rotates in a direction away from the transfer mechanism 3, and therefore the abutting portion 41 of the limiting mechanism 4 loosens a slide on the transfer mechanism 3, the slide can freely enter and exit the transfer mechanism 3, and the slide can be conveniently fed and discharged. In other embodiments, the third driving member may drive the connecting fixing member, and the moving path of the fixing member passes through the abutment portion.

In other embodiments, the side of the limiting mechanism 4, which is close to the transfer mechanism 3, is protruded to form an opening and closing member, and the fixing member is disposed on the side of the opening and closing member, which is close to the elastic member. The third driving piece drives and connects the opening and closing piece/mounting, thus order about opening and closing piece and mounting to butt, the mounting exerts pressure to opening and closing piece, in order to make the butt portion 41 of stop gear 4 rotate towards the direction away from transfer mechanism 3, thus the butt portion 41 of stop gear 4 loosens the slide on the transfer mechanism 3, the slide can freely pass in and out transfer mechanism 3, the operation of unloading is carried out to the slide to the convenience.

In one embodiment, the slide scanning device further comprises a sensor mounted on the frame with a detection direction of the sensor facing the slide magazine frame such that the sensor is configured to detect a position of the slide. The slide scanning device also includes a control system that receives signals from the sensor and commands from the displacement mechanism. The sensor is configured as a laser sensor that senses the upper and lower side edges of the slide. The slide bin frame is provided with accommodating cavities, each accommodating cavity is used for accommodating one slide bin correspondingly, each slide bin is provided with accommodating grids, and each accommodating grid is used for accommodating one slide correspondingly. When the device is used, the displacement mechanism drives the slide bin frame to move, each accommodating grid is opposite to the detection direction of the sensor, the laser sensor detects whether each space is provided with a slide or not, the signal is sent to the control system, and after the control system confirms the number and the positions of the sensors, the control system moves the slide to be detected to the loading and unloading position according to actual needs. And then pushing out, moving and scanning the slide.

The embodiments have been described so as to facilitate a person of ordinary skill in the art in order to understand and apply the present technology, it will be apparent to those skilled in the art that various modifications may be made to these examples and that the general principles described herein may be applied to other embodiments without undue burden. Therefore, the present application is not limited to the above embodiments, and modifications to the following cases should be within the scope of protection of the present application: (1) the technical scheme of the utility model is taken as the basis and combined with the new technical scheme implemented by the prior common general knowledge, and the technical effect produced by the new technical scheme is not beyond that of the utility model; (2) equivalent replacement of part of the characteristics of the technical scheme of the utility model by adopting the known technology produces the technical effect the same as that of the utility model; (3) the technical scheme of the utility model is taken as a basis for expanding, and the essence of the expanded technical scheme is not beyond the technical scheme of the utility model; (4) equivalent transformation made by the content of the specification and the drawings of the utility model is directly or indirectly applied to other related technical fields.

Claims

1. A slide feeding device comprises a frame, and is characterized in that,

the device also comprises a loading and unloading area and a pushing mechanism, wherein the loading and unloading area and the pushing mechanism are arranged on the rack, and the loading and unloading area is used for placing a slide;

the moving path of the pushing mechanism passes through the loading and unloading area, and the slide of the loading and unloading area receives pushing force under the movement of the pushing mechanism and is separated from the loading and unloading area.

2. A slide feeding device as recited in claim 1 wherein the slide pushing mechanism includes a first slide arm and a first drive member drivingly connected to the first slide arm; the first driving piece drives the first pushing piece arm to enter and exit the loading and unloading area, and the stroke of the first pushing piece arm in the loading and unloading area is not smaller than the length of the loading and unloading area.

3. A slide feeding device as recited in claim 2 wherein the first drive member includes a drive structure and a guide structure, the first pusher arm is slidably coupled to the guide structure, and the drive structure is drivingly coupled to the first pusher arm, the first pusher arm being driven by the drive structure to move along the guide structure into and out of the loading region.

4. A slide scanning device comprising a scanning mechanism for scanning a slide, and further comprising a transfer mechanism and a slide loading device according to any one of claims 1-3, the transfer mechanism being disposed on the frame, the transfer mechanism receiving a slide detached from the loading and unloading area in a receiving area and moving the slide to a scanning area of the scanning mechanism for scanning the slide.

5. A slide scanning device as claimed in claim 4 wherein the width of the transfer mechanism is greater than the width of the slide, the transfer mechanism being provided with a flared opening in which the slide enters and exits the transfer mechanism.

6. A slide scanning device as claimed in claim 5, further comprising drive assemblies drivingly connected to the transfer mechanisms, respectively, the transfer mechanisms being driven by the drive assemblies to move paths through at least the receiving region and the scanning region.

7. A slide scanning device as recited in claim 6 further comprising a slide ejector mechanism, a path of movement of the slide ejector mechanism passing through the transfer mechanism; the slide of the transfer mechanism receives the pushing force of the slide withdrawing mechanism in the receiving area and enters the loading and unloading area; the receiving area is matched with the loading and unloading area in position.

8. A slide scanning device as recited in claim 7, further comprising a limiting mechanism disposed on the frame, the limiting mechanism being configured to be in a clasped condition; in the clasping state, the slide on the transfer mechanism is abutted against the transfer mechanism.

9. A slide scanning device as recited in claim 8, wherein,

the device also comprises a base which is in sliding connection with the frame, the middle part of the limiting mechanism is rotationally connected with the base, one end of the limiting mechanism is provided with an abutting part which extends towards the transfer mechanism, and the other end of the limiting mechanism is connected with the base through an elastic piece;

when the clamping state is achieved, the elastic piece applies elastic force to the limiting mechanism so that the abutting part of the limiting mechanism rotates towards the transfer mechanism.

10. A slide scanning device as recited in claim 9, further comprising a third drive member and a stationary member each disposed on the frame;

the side wall of the limiting mechanism is further provided with an opening and closing piece, the third driving piece drives the opening and closing piece and the fixing piece to be close to each other and generate interaction force, and the fixing piece applies pressure to the opening and closing piece so that the abutting part of the limiting mechanism rotates in the direction away from the transfer mechanism.