CN110568605A - Positioning components and microscopes - Google Patents

Abstract

An embodiment of the present application provides a positioning assembly and a microscope, wherein the positioning assembly is used to fix the carrier; the positioning assembly includes: a positioning base; the two ends of the positioning base along the length direction are respectively provided with a first bearing structure and a second The bearing structure is respectively used to support the two ends of the bearing; the first fixing structure is arranged on the first bearing structure and is used to fix one end of the bearing; the second fixing structure is arranged on the second The second bearing structure is used to fix the other end of the bearing. The positioning assembly provided by the embodiment of the present application can fix the carrier and avoid bending deformation of the carrier.

Description

Positioning components and microscopes

technical field

The present application relates to a microscope object carrying device, in particular to a positioning component and a microscope.

Background technique

In the process of disease diagnosis, to determine whether the living cells have lesions, the conventional method is to use the carrier to puncture the body to obtain the cell tissue to be tested. The carrier is fixed on the stage of the microscope through the fixing device, and the cells are observed through the microscope. characteristics, so as to draw conclusions about whether the cells are diseased.

The bearing part has a structure with a large slenderness ratio, and its length is more than three times its diameter. It is easy to bend and deform in a free state, and it is especially difficult to maintain a straight state when the cell tissue to be tested is attached to it. The traditional fixing device is to apply a tension force to both ends of the carrier to provide a certain tension stiffness for the carrier to keep it straight. In the actual application process, it is difficult to grasp the tension force. If the tension force is too small, the load-bearing parts will be easy to loosen; The detection accuracy of the cell tissue to be tested.

Contents of the invention

In order to solve one of the above problems, an embodiment of the present application provides a positioning component and a microscope.

The embodiment of the first aspect of the present application provides a positioning assembly for fixing a carrier; including: the positioning assembly includes:

A positioning base; the two ends of the positioning base along the length direction are respectively provided with a first load-bearing structure and a second load-bearing structure, which are respectively used to support the two ends of the bearing;

a first fixing structure, arranged on the first bearing structure, for fixing one end of the bearing;

The second fixing structure is arranged on the second bearing structure and is used for fixing the other end of the bearing member.

The embodiment of the second aspect of the present application provides a microscope, including: the positioning assembly as described above.

In the technical solution provided by the embodiment of the present application, the first load-bearing structure and the second load-bearing structure are respectively arranged at both ends of the positioning base to support the two ends of the bearing member, and the first fixed structure is also used to be arranged on the first load-bearing structure One end of the bearing is fixed on the top, and the second fixing structure is arranged on the second bearing structure to fix the other end of the bearing. Since the force exerted by the first bearing structure and the first fixing structure on the bearing is perpendicular to the bearing In the axial direction, the force exerted by the second bearing structure and the second fixing structure on the bearing is also perpendicular to the axial direction of the bearing, so no torsional force or axial pulling force will be applied to the bearing, which solves the problem of using two ends in the traditional solution. The tensioning method will exert torsional force and axial pulling force on the carrier, making the carrier prone to torsional deformation.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

FIG. 1 is a schematic structural diagram of a positioning component provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of the assembly of the first fixing structure in the positioning assembly provided by the embodiment of the present application;

Fig. 3 is a schematic structural view of the pressing member in the positioning assembly provided in the embodiment of the present application when it is in the second position;

Fig. 4 is a schematic structural view of the pressing member in the first position of the positioning assembly provided by the embodiment of the present application;

Fig. 5 is a schematic structural view of the pressing cover in the open position of the positioning assembly provided by the embodiment of the present application.

Reference signs:

1-positioning matrix;

2-the first bearing structure; 21-the riser; 22-the adapter; 221-the first positioning slot;

3-the second bearing structure; 31-the second positioning groove; 32-limiting pin; 33-observation hole;

4-the first fixed structure; 41-the first pin; 42-pressing piece; 421-hook; 43-the second pin; 44-rotating slider;

5-second fixing structure; 51-press cover; 511-protrusion; 512-observation window; 52-locking piece;

6-carrier;

7-connecting shaft; 71-lock nut.

Detailed ways

In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Embodiment one

This embodiment provides a positioning assembly for fixing a carrier. The bearing member has a structure with a large slenderness ratio, which means that the length is greater than three times the diameter. The carrier can be cylindrical, polygonal column or other shapes. The positioning assembly provided in this embodiment can fix a carrier with a large slenderness ratio, and does not limit the specific diameter or length of the carrier.

FIG. 1 is a schematic structural diagram of a positioning component provided by an embodiment of the present application. As shown in FIG. 1 , the positioning assembly provided in this embodiment includes: a positioning base 1 , a first bearing structure 2 , a second bearing structure 3 , a first fixing structure 4 and a second fixing structure 5 . Wherein, the first load-bearing structure 2 and the second load-bearing structure 3 are respectively arranged on the two ends of the positioning base 1 along the length direction. direction. The first load-bearing structure 2 and the second load-bearing structure 3 are respectively located below the two ends of the load-bearing component 6, and are used to support the two ends of the load-bearing component 6, and the supporting force is perpendicular to the axial direction of the load-bearing component.

The first fixing structure 4 is arranged on the first bearing structure 2 and is used for fixing one end of the bearing member 6 . The second fixing structure 5 is arranged on the second carrying structure 3 and is used for fixing the other end of the carrying member 6 . The pressing force exerted by the first fixing structure 4 and the second fixing structure 5 on the carrier 6 is perpendicular to the axial direction of the carrier, and the carrier 6 is fixed, but no torsional force or axial force will be applied to the carrier 6. pull.

In the technical solution provided by this embodiment, the first load-bearing structure and the second load-bearing structure are respectively arranged at both ends of the positioning base to support the two ends of the bearing member, and the first fixing structure is also used to be arranged on the first load-bearing structure One end of the bearing is fixed, and the second fixing structure is arranged on the second bearing structure to fix the other end of the bearing. Since the force exerted by the first bearing structure and the first fixing structure on the bearing is perpendicular to the axis of the bearing direction, the force exerted by the second bearing structure and the second fixing structure on the bearing is also perpendicular to the axial direction of the bearing, so no torsional force or axial pulling force will be applied to the bearing, which solves the problem of using both ends of the traditional solution. The tightening method will exert torsional force and axial pulling force on the carrier, making the carrier prone to torsional deformation.

On the basis of the above technical solution, this embodiment also illustrates the implementation of each component in the above positioning assembly with examples:

For the first carrying structure 2 , it may specifically include: a riser 21 fixedly arranged at one end of the positioning base 1 and an adapter 22 arranged on the riser 21 . Wherein, the riser 21 is perpendicular to the length direction of the carrier 6 . The adapter 22 is disposed on the riser 21 , located on a side facing the second bearing structure 3 , and can rotate relative to the riser 21 . One end of the carrier 6 can be fixed to the adapter 22 , and the adapter 22 is located below the end of the carrier 6 for supporting the carrier 6 . The first fixing structure 4 is disposed on the adapter 22 for cooperating with the adapter 22 to fix the carrier 6 .

In addition, the adapter piece 22 can be connected with an external rotation driving motor, and the rotation drive motor can drive the adapter piece 22 to rotate, thereby driving the bearing member 6 to rotate. The carrier 6 is a cylindrical structure with a large slenderness ratio, and the observed object is attached to its peripheral surface. When the position of the observed object is fixed, the carrier 6 can be attached to various positions on its arc-shaped surface by rotating the carrier 6. The observed objects can be observed, which improves the comprehensiveness of the detection of the observed objects and improves the accuracy.

A specific implementation manner is as follows: the adapter piece 22 is in the shape of a semi-cylindrical body, and the plane parallel to the axial direction on the adapter piece 22 is the first installation surface. The first mounting surface is provided with a first positioning groove 221 extending in the axial direction, the end of the carrier 6 can be accommodated in the first positioning groove 221, and the first positioning groove 221 plays a role of limiting the carrier 6 function, so that the carrier 6 cannot move in the radial direction. The first fixing structure 4 can be arranged on the first installation surface, and is used for pressing the carrier 6 into the first positioning groove 221 so that the carrier 6 cannot escape from the first positioning groove 221 .

For the first fixed structure 4, there are many ways to realize it, for example, the following ways can be adopted:

Fig. 2 is a structural schematic diagram of the assembly of the first fixing structure in the positioning assembly provided by the embodiment of the present application. Fig. 3 is a structural schematic diagram of the pressing member in the positioning assembly provided by the embodiment of the present application when it is in the second position. Fig. 4 is the present application Schematic diagram of the structure of the pressing member in the positioning assembly provided in the embodiment of the application when it is in the first position.

As shown in FIGS. 2 to 4 , the first fixing structure 4 includes: a first pin 41 and a pressing member 42 . Wherein, the first pin 41 is inserted on the adapter piece 22 along a direction perpendicular to the first installation surface. One end of the pressing member 42 is rotatably connected to the first pin 41 , and the pressing member 42 can rotate around the first pin 41 as a rotation center.

The pressing member 42 rotates counterclockwise to the first position. In the first position, the pressing member 42 is in contact with the first installation surface and exerts a pressing force on the first installation surface to compress the carrier 6, as shown in FIG. 4 ; The pressing member 42 can also be rotated clockwise to the second position. In the second position, the pressing member 42 is separated from the first mounting surface to cancel the pressing force on the carrier 6, as shown in FIG. 3 . Specifically, the pressing member 42 is a flat structure, and its bottom surface is an inclined surface, forming a certain angle with the first installation surface. It is equivalent to that the thickness of the pressing member 42 changes gradually, and its thicker end is rotatably connected with the first pin 41 . When the pressing member 42 is in the second position, the contact area with the first installation surface is very small; when the pressing member 42 rotates counterclockwise, the contact area with the first installation surface becomes larger and larger, The thicker part of the pressing member 42 is more in close contact with the first installation surface, thereby generating a pressing force on the first installation surface.

Furthermore, the second pin 43 can also be used to be fixedly inserted on the adapter 22 along the direction perpendicular to the first installation surface, and the second pin 43 and the first pin 41 are respectively located on both sides of the first positioning groove 221 . There is a certain gap between the head of the second pin 43 and the first mounting surface. A hook 421 is provided at the end of the pressing member 42 away from the first pin 41. When the pressing member 42 rotates counterclockwise to the first position, the hook 421 can be accommodated in the above-mentioned gap and hooked on the second pin 41. On the other hand, the fixing to the pressing member 42 is strengthened to prevent it from getting loose.

An optional way: a rotating slider 44 is fixed on the pressing member 42 , and the operator pulls the rotating slider 44 by hand to drive the pressing member 42 to rotate relative to the first pin 41 , which is convenient for operation.

In addition to the above solutions, the first fixing structure 4 can also be implemented in other ways, for example, by screw connection: an external thread is provided on the first pin 41 , and the pressing member 42 is fixedly connected to the first pin 41 . Rotating the pressing member 42 drives the first pin 41 to rotate, shortening the distance between the head of the first pin 41 and the first installation surface, and then makes the pressing member 42 exert a pressing force on the first installation surface.

Fig. 5 is a schematic structural view of the pressing cover in the open position of the positioning assembly provided by the embodiment of the present application. As shown in FIG. 5 , the second bearing structure 3 is arranged at the end of the positioning base 1 and can be fixed by bolts. A second mounting surface is provided on the second bearing structure 3 , and a second positioning groove 31 is formed on it, and the other end of the bearing member 6 can be accommodated in the second positioning groove 31 . The second bearing structure 3 is used to support the bearing member 6 . A limiting pin 32 is inserted at the end of the second positioning slot 31 , and the limiting pin 32 is used for axially limiting the carrier 6 .

A specific implementation manner is as follows: the second carrying structure 3 is provided with an observation hole 33 , and the center line of the observation hole 33 is perpendicular to the second installation surface. The observation hole 33 cuts off the second positioning groove 31 into two parts, front and rear, and the bearing member 6 straddles the top of the observation hole 33, and its parts located at the front and rear sides of the observation hole 33 are all accommodated in the second positioning groove 31, so that Both the front and rear parts of the second positioning groove 31 can support and limit the carrier 6 .

For the second fixing structure 5 , there are various ways to implement it, for example, the following ways can be adopted: As shown in FIG. 5 , the second fixing structure 5 includes: a pressing cover 51 and a locking member 52 . Wherein, the pressing cover 51 is rotatably connected with the second carrying structure 3 , so that the pressing cover 51 can be rotated to a closed position or an open position relative to the second carrying structure 3 . When the compression cover 51 is turned down to the closed position, it contacts with the second mounting surface and compresses the carrier 6; 6 Apply a compressive force. The locking member 52 is arranged on the second carrying structure 3 and is used for locking the pressing cover 51 when the pressing cover 51 is in the closed position.

For the locking piece 52, it can be realized in various ways, for example: the locking piece 52 can be connected with the pressing cover 51 through bolt connection or clamping connection, or the following way can also be used: on the locking piece 52 respectively A magnetic absorbing part and an adsorbed part are arranged on the pressing cover 51 , so that the locking part 52 and the pressing cover 51 are fixed together by magnetic force. For example: a permanent magnet is set on the locking piece 52 , and an iron block is correspondingly set on the pressing cover 51 , and the pressing cover 51 is firmly fixed on the locking piece 52 through the magnetic force of the permanent magnet on the iron block.

In this embodiment, the locking member 52 is disposed on the side of the positioning base 1 , and the pressing cover 51 is provided with a protrusion 511 extending toward the locking member 52 , and the protrusion 511 is provided with a magnetically adsorbed member. When the pressing cover 51 is in a closed state, the protruding portion 511 is located above the locking member 52 , and the protruding portion 511 is closely attached to the locking member 52 through magnetic attraction.

Further, an observation window 512 is provided on the compression cover 51 , and the observation window 512 corresponds to the position of the above observation hole 33 . Specifically, the compression cover 51 is in the shape of a square frame, and the hollowed-out area in the middle forms an observation window 512. When the compression cover 51 is in the closed position, the two short frames of the compression cover 51 are in contact with the second mounting surface and are aligned with it. A pressing force is applied to limit the radial movement of the bearing member 6 .

In addition, the connecting shaft 7 is adopted, and the side of the riser 21 away from the adapter 22 is connected with the adapter 22, and the other end of the connecting shaft 7 is connected with the rotating motor, so that the rotating motor drives the adapter 22 to rotate, thereby driving The carrier 6 rotates.

Conventional methods can be used to connect the connecting shaft 7 and the rotating electrical machine, for example, using a shaft coupling for connection, specifically, a lock nut 71 can be used for connection, so as to prevent the connecting shaft 7 from being disengaged.

This embodiment also provides a microscope, including the positioning component provided by any one of the above contents. The microscope may be an electron microscope, specifically an electron microscope capable of observing objects on a curved surface. The microscope provided in this embodiment adopts the above-mentioned positioning assembly, adopts the first load-bearing structure and the second load-bearing structure to be respectively arranged at both ends of the positioning base for supporting the two ends of the carrier, and also adopts the first fixed structure to be arranged on the first One end of the bearing is fixed on the bearing structure, and the second fixing structure is arranged on the second bearing structure to fix the other end of the bearing. Since the force exerted by the first bearing structure and the first fixing structure on the bearing is perpendicular to In the axial direction of the bearing, the force exerted by the second bearing structure and the second fixing structure on the bearing is also perpendicular to the axial direction of the bearing, so no torsional force or axial pulling force will be applied to the bearing, which solves the problem of traditional solutions. The way of tightening both ends will exert torsional force and axial pulling force on the carrier, making the carrier prone to torsional deformation.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientation or position shown in the drawings The positional relationship is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

While preferred embodiments of the present application have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the application.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (13)

1. A positioning assembly, used to fix the carrier; it is characterized in that, comprising: the positioning assembly includes: A positioning base; the two ends of the positioning base along the length direction are respectively provided with a first load-bearing structure and a second load-bearing structure, which are respectively used to support the two ends of the bearing; a first fixing structure, arranged on the first bearing structure, for fixing one end of the bearing; The second fixing structure is arranged on the second bearing structure and is used for fixing the other end of the bearing member. 2. The positioning assembly according to claim 1, wherein the first bearing structure comprises: A vertical plate fixed at one end of the positioning base, the vertical plate is perpendicular to the length direction of the carrier; The adapter is arranged on the side of the riser facing the second bearing structure, and is rotatably connected with the riser; the adapter is used for supporting the bearing and setting the first fixing structure. 3. The positioning assembly according to claim 2, wherein the adapter has a first mounting surface for setting the first fixing structure, and the first mounting surface is provided with a second mounting surface for accommodating the carrier. A positioning slot; the first fixing structure is used to press the carrier into the first positioning slot for fixing. 4. The positioning assembly according to claim 3, wherein the first fixing structure comprises: The first pin is fixedly inserted on the adapter along a direction perpendicular to the first mounting surface; A pressing piece, one end of which is rotatably connected to the first pin; the pressing piece can be rotated to a first position or a second position relative to the first pin; in the first position, the pressing piece is connected to the first pin A mounting surface contacts and compresses the carrier; in the second position, the pressing member separates from the first mounting surface to cancel the pressing force on the carrier. 5 . The positioning assembly according to claim 4 , wherein the bottom surface of the pressing member is an inclined surface, so that the bottom surface of the end of the pressing member close to the first pin is in close contact with the first mounting surface. 6 . 6. The positioning assembly according to claim 4 or 5, wherein a hook is provided at an end of the pressing member away from the first pin; The first fixing structure also includes: The second pin is fixedly inserted on the adapter along the direction perpendicular to the first mounting surface; there is a gap that can accommodate the hook between the head of the second pin and the first mounting surface; when the When the pressing member is in the first position, the hook is accommodated in the gap and hooked on the second pin. 7. The positioning assembly according to claim 1, wherein a second mounting surface is provided on the second bearing structure, and a second positioning groove for accommodating the carrier is provided on the second mounting surface; The end of the second positioning groove is inserted with a limit pin perpendicular to the second installation surface. 8. The positioning assembly according to claim 7, wherein the second bearing structure is provided with an observation hole whose center line is perpendicular to the second installation surface, and the observation hole cuts off the second positioning groove into two parts, front and rear ; The bearing member straddles the observation hole, and the parts on both sides of the observation hole are accommodated in the second positioning groove. 9. The positioning assembly according to claim 8, wherein the second fixing structure comprises: The compression cover is rotatably connected with the second bearing structure; the compression cover can be rotated to a closed position or an open position relative to the second bearing structure; when in the closed position, the compression cover is in contact with the second mounting surface And compress the carrier; in the open position, the compression cover is separated from the second installation surface; the compression cover is provided with an observation window corresponding to the observation hole; The locking part is arranged on the second bearing structure and is used for locking the compression cover when the compression cover is in the closed position. 10. The positioning assembly according to claim 9, characterized in that, a magnetic adsorption member is provided inside the locking member; The pressing cover has a protruding part extending toward the locking part, and a magnetically attracted part is arranged inside the protruding part. 11. The positioning assembly according to claim 9, wherein the pressing cover is in the shape of a square frame, and the hollowed-out area in the middle forms the observation window; When the pressing cover is in the closed position, the two short frames of the pressing cover are in contact with the second installation surface and apply a pressing force thereto. 12. The positioning assembly according to claim 2, further comprising: The connecting shaft is connected to the adapter piece from the side of the vertical plate away from the second bearing structure. 13. A microscope, characterized by comprising: the positioning assembly according to any one of claims 1-12.