Microscope positioning structure and microscope
By using elastic elements and locking components in the microscope positioning structure, the problem of pin loss was solved, achieving stability and accuracy of the microscope observation angle, and improving operational efficiency and observation results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU KUANGXIN TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-05
AI Technical Summary
In existing tilting microscopes, the pins of the positioning structure are easily lost when the observation angle is changed, resulting in unstable positioning.
The design employs an elastic element that contracts and is fixed between the receiving cover and the positioning element, ensuring that the positioning element is always located within the receiving cover. The positioning element is automatically positioned by a positioning groove and a locking assembly, preventing it from detaching. At the same time, a damping assembly and a linear bearing are used to improve positioning accuracy and stability.
This effectively prevents the loss of positioning components, ensures the stability and accuracy of the microscope observation angle, and improves operational efficiency and observation accuracy.
Smart Images
Figure CN224328283U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of microscope technology, and in particular to a microscope positioning structure and a microscope. Background Technology
[0002] A microscope, as an instrument for observing tiny samples, can magnify minute structures that are invisible to the naked eye. Among them, a tilting microscope is a specially designed microscope whose sample stage can be tilted at a certain angle (usually 0° to 90°), facilitating observation of samples from different angles. It is particularly suitable for samples with uneven surfaces, three-dimensional structures, or those requiring multi-angle analysis. When observing samples with a tilting microscope, it is necessary to change the observation angle of the microscope to facilitate observation.
[0003] Currently, tilting microscopes include a positioning structure that allows the microscope to change its observation angle and be fixed at the desired angle. This positioning structure includes pins and other positioning components that lock the microscope at the desired observation angle. When changing the observation angle, the pins need to be loosened or removed to unlock the microscope and allow the angle to be changed. However, the pins are prone to being lost when loosened or removed. Therefore, preventing pin loss when changing the observation angle of a tilting microscope is a pressing technical problem that needs to be solved in this field. Utility Model Content
[0004] This application provides a microscope positioning structure and microscope, which can avoid the problem of lost positioning components.
[0005] On one hand, this application provides a microscope positioning structure, which includes a base, a rotating shaft, a tilting rod, a receiving cover, a positioning element, and an elastic element. The rotating shaft is rotatably connected to the base, and multiple positioning grooves are formed along its circumference. One end of the tilting rod is fixedly connected to the rotating shaft, and the other end of the tilting rod is connected to the microscope lens. The receiving cover is fixedly connected to the base. The positioning element passes through the receiving cover and the base, and moves along its extension direction to abut or separate from the positioning grooves. The elastic element is located inside the receiving cover, and contracts and is fixed between the receiving cover and the positioning element, so that the positioning element has a tendency to move towards the rotating shaft.
[0006] Furthermore, the positioning groove includes a zero-point groove and at least one inclined groove. When the positioning member moves to the zero-point groove, the inclined rod extends in the vertical direction. When the positioning member moves to the inclined groove, the inclined rod forms a non-zero angle with respect to the vertical direction.
[0007] Furthermore, the microscope positioning structure includes a locking assembly, which includes a surrounding member and a locking member. The surrounding member has a fixing hole and an adjustment gap. The rotating shaft is at least partially located in the fixing hole. The adjustment gap connects the fixing hole and the outer surface of the surrounding member. The locking member passes through the base and abuts against or separates from the surrounding member. The locking member is used to adjust the adjustment gap to adjust the diameter of the fixing hole.
[0008] Furthermore, the surrounding member includes a fixed part and a movable part, and an adjustment gap is formed between the fixed part and the movable part. When the locking member abuts against the surrounding member, the locking member tightens or squeezes the movable part to reduce the adjustment gap. When the locking member separates from the surrounding member, the locking member releases the movable part, and the adjustment gap returns to its initial state.
[0009] Furthermore, the depth of the zero-point groove along the radial direction of the rotating shaft is greater than the depth of the inclined groove along the radial direction of the rotating shaft; the positioning element is a shaft, and the zero-point groove includes a cylindrical section and a frustum section. The two ends of the cylindrical section are connected to the surface of the rotating shaft and the frustum section, respectively. The inner diameter of the cylindrical section is the same as the diameter of the positioning element. A hemispherical part is formed at the end of the positioning element near the rotating shaft. When the positioning element moves to the zero-point groove, the hemispherical part is located in the frustum section and fits against the inner wall of the frustum section; the inclined groove is a conical groove. When the positioning element moves to the inclined groove, the hemispherical part is at least partially located in the inclined groove; the hemispherical part moves out of or into the inclined groove along the inner wall of the inclined groove as the rotating shaft rotates.
[0010] Furthermore, the microscope positioning structure also includes a damping assembly, which includes a mounting plate and a damping element. The mounting plate is fixedly connected to the surrounding element, one end of the damping element is fixed to the rotating shaft, and the other end of the damping element is fixed to the mounting plate.
[0011] Furthermore, the microscope positioning structure includes a linear bearing, which passes through and is connected to the base, and the positioning element is a shaft that passes through the linear bearing.
[0012] Furthermore, a positioning hole is provided at the end of the housing away from the rotating shaft, and the positioning element passes through the positioning hole and is at least partially located inside the housing. The diameter of the positioning hole is consistent with the inner diameter of the linear bearing, and the axis of the positioning hole coincides with the axis of the linear bearing.
[0013] Furthermore, a protrusion is formed on the positioning member, and the inner wall of the end of the receiving cover away from the rotating shaft is defined as the abutting inner wall. The two ends of the elastic member abut the protrusion and the abutting inner wall respectively. The protrusion is an annular protrusion structure. The end of the positioning member away from the rotating shaft is located outside the receiving cover and is connected to a positioning handle for operating the movement of the positioning member.
[0014] Secondly, embodiments of this application provide a microscope, which includes the microscope positioning structure and lens described above, with the lens connected to the tilting rod of the microscope positioning structure.
[0015] Furthermore, the microscope is an electron microscope; the microscope includes a motherboard, and the lens is electrically connected to the motherboard.
[0016] The microscope positioning structure and microscope provided in this application embodiment are configured such that the microscope is fixed between the receiving cover and the positioning member by the elastic member contraction and contraction, so that the positioning member is at least partially always located inside the receiving cover. This prevents the positioning member from detaching from the microscope positioning structure when the positioning member is separated from the positioning groove, thus avoiding the loss of the positioning member. The elastic member also makes the positioning member always have a tendency to move towards the rotation axis, so that when the positioning member overlaps with any positioning groove in the vertical direction, the positioning member can automatically move into the positioning groove, thereby realizing the automatic positioning of the positioning member on the rotation axis. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the microscope provided in an embodiment of this application.
[0018] Figure 2 This is a schematic diagram of the microscope positioning structure provided in an embodiment of this application.
[0019] Figure 3 This is a partial cross-sectional view of the microscope positioning structure provided in an embodiment of this application.
[0020] Figure 4 Examples of this application Figure 3 A magnified view of a portion of point A in the middle.
[0021] Figure 5 This is a cross-sectional view of the receiving cover, positioning element, elastic element, and positioning handle of the microscope positioning structure provided in the embodiments of this application.
[0022] Figure 6 A cross-sectional view of the rotating shaft of the microscope positioning structure provided in the embodiments of this application.
[0023] Figure 7 This is a front view of the microscope positioning structure provided in an embodiment of this application.
[0024] Figure 8 A schematic diagram of the damping component of the microscope positioning structure provided in the embodiments of this application.
[0025] Figure 9 A structural block diagram of a microscope provided in an embodiment of this application.
[0026] In the diagram: 100, microscope positioning structure; 11, base; 111, bearing hole; 12, rotating shaft; 121, positioning groove; 1211, zero-point groove; 1211a, cylindrical section; 1211b, frustum section; 1212, tilting groove; 13, tilting rod; 14, receiving cover; 141, fixed end; 1411, receiving cover fixing part; 142, through end; 143, abutting the inner wall; 144, positioning hole; 15, positioning element; 151, protrusion. ; 152. Frustum; 16. Elastic element; 17. Positioning handle; 18. Locking assembly; 181. Surrounding element; 1811. Fixing hole; 1812. Adjustment gap; 1813. Fixing part; 1814. Moving part; 1815. Surrounding part; 182. Locking element; 183. Locking handle; 19. Damping assembly; 191. Mounting plate; 192. Damping element; 21. Linear bearing; 300. Microscope; 31. Lens; 32. Main board. Detailed Implementation
[0027] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0028] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, the terms "below" and / or "above," etc., are for ease of explanation only and are not limited to a location or spatial orientation. The terms "comprising," "including," etc., mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms "connected," "linked," etc., are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.
[0029] The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.
[0030] like Figure 1 and Figure 2As shown, this application provides a microscope positioning structure 100, which can be used to adjust the vertical and tilt observation of a microscope 300. Specifically, the microscope positioning structure 100 of this application can change the observation angle of the microscope 300, so as to facilitate the microscope 300 to observe the sample from different angles.
[0031] More specifically, the microscope positioning structure 100 includes a base 11, a rotating shaft 12, a tilting rod 13, a receiving cover 14, a positioning element 15, and an elastic element 16.
[0032] To clearly illustrate the technical solution of this application, the following are also defined: Figure 2 The upper and lower directions shown are used to characterize the vertical direction of the microscope positioning structure 100.
[0033] like Figure 2 and Figure 3 As shown, the base 11 serves as the basic frame of the microscope positioning structure 100, supporting the rotating shaft 12, tilting rod 13, housing cover 14, positioning element 15, and elastic element 16.
[0034] The rotating shaft 12 is rotatably connected to the machine base 11 so that the rotating shaft 12 can rotate relative to the machine base 11. Specifically, the rotating shaft 12 is rotatably connected to the machine base 11 through a bearing so that the rotation of the rotating shaft 12 is smoother, thereby improving the rotational flexibility of the rotating shaft 12.
[0035] The tilting rod 13 is a rod-shaped structure. One end of the tilting rod 13 is fixedly connected to the rotating shaft 12, so that the tilting rod 13 can swing as the rotating shaft 12 rotates. The other end of the tilting rod 13 is connected to the lens 31 of the microscope 300 (see reference). Figure 1 The lens 31 of the microscope 300 is connected so that it can tilt with the swing of the tilt rod 13, which is beneficial for the lens 31 of the microscope 300 to observe the sample from different angles, so as to be suitable for samples with uneven surfaces, three-dimensional structures or requiring multi-angle analysis.
[0036] The receiving cover 14 is fixedly connected to the base 11, and the positioning member 15 passes through the receiving cover 14 and the base 11. Viewed from the extending direction of the positioning member 15, the positioning member 15 and the rotating shaft 12 at least partially overlap, and the positioning member 15 can move along its extending direction so that the positioning member 15 can abut against the rotating shaft 12, thereby positioning the rotating shaft 12 by the positioning member 15; or separating the positioning member 15 from the rotating shaft 12, thereby unlocking the rotating shaft 12 by the positioning member 15.
[0037] It should be noted that the positioning element 15 extends basically along the vertical direction of the microscope positioning structure 100, that is, the direction of movement of the positioning element 15 is... Figure 2The vertical direction of the housing; and the positioning element 15 passes through the housing cover 14 and the base 11 in the vertical direction.
[0038] In this embodiment, the positioning member 15 can be limited by the housing cover 14 and the base 11 so that the positioning member 15 can always move in the vertical direction, that is, the positioning member 15 will not deviate, thereby improving the positioning accuracy of the positioning member 15 for the rotating shaft 12.
[0039] like Figure 3 and Figure 4 As shown in this application, the rotating shaft 12 has a plurality of positioning grooves 121 along its circumference, and the positioning member 15 moves along its extension direction so that the positioning member 15 abuts or separates from the positioning groove 121, thereby enabling the positioning member 15 to position and unlock the rotating shaft 12 through the positioning groove 121, and improving the positioning accuracy of the positioning member 15 on the rotating shaft 12.
[0040] The elastic element 16 is located inside the receiving cover 14. The elastic element 16 contracts and is fixed between the receiving cover 14 and the positioning element 15, causing the positioning element 15 to tend to move towards the rotating shaft 12. Specifically, both ends of the elastic element 16 can abut against the receiving cover 14 and the positioning element 15 respectively. Due to the contraction of the elastic element 16, it exerts a force on the receiving cover 14 and the positioning element 15. Since the receiving cover 14 is fixed to the base 11 (i.e., the receiving cover 14 cannot move), while the positioning element 15 can move, the force exerted by the elastic element 16 when it contracts can only drive the positioning element 15 to move, thus giving the positioning element 15 a tendency to move towards the rotating shaft 12.
[0041] It should be noted that when the positioning component 15 unlocks the rotating shaft 12, the positioning component 15 moves upward to separate from the positioning groove 121. At this time, the rotating shaft 12 can rotate, thereby causing the tilting rod 13 and the lens 31 on the tilting rod 13 to rotate, thus allowing the lens 31 to adjust the observation angle. When the lens 31 is adjusted to the required observation angle, the positioning component 15 positions the rotating shaft 12. The positioning component 15 moves downward under the force of the elastic component 16, so that the positioning component 15 abuts against the positioning groove 121 and is located within the positioning groove 121. At this time, the rotating shaft 12 cannot rotate, thereby positioning the tilting rod 13, and thus allowing the lens 31 to remain at the required observation angle.
[0042] Furthermore, the elastic element 16 and the receiving cover 14 ensure that the positioning element 15 is at least partially always located within the receiving cover 14, thus preventing the positioning element 15 from detaching from the microscope positioning structure 100 when it separates from the positioning groove 121, thereby preventing the positioning element 15 from being lost. Secondly, the elastic element 16 also ensures that the positioning element 15 always has a tendency to move towards the rotating shaft 12, so that when the positioning element 15 overlaps with any positioning groove 121 in the vertical direction, the positioning element 15 can automatically move into the positioning groove 121, thereby achieving automatic positioning of the positioning element 15 on the rotating shaft 12.
[0043] In some embodiments, one end of the tilting rod 13 may have a mounting hole, through which the tilting rod 13 is sleeved onto the rotating shaft 12, and the mounting hole and the rotating shaft 12 are interference-fitted to achieve a fixed connection between the rotating shaft 12 and the tilting rod 13. Alternatively, the tilting rod 13 may be integrally formed with the rotating shaft 12 so that the tilting rod 13 and the rotating shaft 12 can rotate synchronously. Alternatively, the tilting rod 13 may also be fixedly connected to the rotating shaft 12 by welding or other means, which is not limited in this application.
[0044] like Figure 4 and Figure 5 As shown, in some embodiments, the receiving cover 14 includes a fixed end 141 and a through end 142 through which the positioning member 15 passes. The fixed end 141 forms a receiving cover fixing part 1411, which is connected to the base 11 by bolts. It is understood that the receiving cover 14 can also be connected to the base 11 by welding or other means, and this application does not impose any restrictions.
[0045] In some embodiments, the elastic element 16 may be a spring, which is sleeved on the positioning element 15, with its two ends abutting against the positioning element 15 and the receiving cover 14, respectively. It is understood that the elastic element 16 may be made of an elastic material such as rubber, and the positioning element 15 passes through the through end 142 of the receiving cover 14, the elastic element 16, and the base 11.
[0046] like Figure 2 and Figure 5 As shown, in some embodiments, the end of the positioning member 15 furthest from the rotating shaft 12 is located outside the receiving cover 14 and is connected to a positioning handle 17 for operating the movement of the positioning member 15. The positioning handle 17 facilitates the operator's grip, allowing the operator to control the upward movement of the positioning member 15 via the positioning handle 17, thereby improving the unlocking efficiency of the positioning member 15 on the rotating shaft 12. The positioning handle 17 and the positioning member 15 can be connected by bolts.
[0047] In some embodiments, a protrusion 151 is formed on the positioning member 15, and the inner wall of the end of the receiving cover 14 away from the rotating shaft 12 is defined as the abutting inner wall 143. The two ends of the elastic member 16 abut against the protrusion 151 and the abutting inner wall 143, respectively. The protrusion 151 is an annular protrusion structure, so that the elastic member 16 can fully abut against the protrusion 151 to improve the uniformity of the force exerted by the elastic member 16 on the positioning member 15.
[0048] like Figure 3 and Figure 6 As shown, in one implementation, the positioning slot 121 includes a zero-point slot 1211 and at least one tilting slot 1212. When the positioning member 15 moves to the zero-point slot 1211, the tilting rod 13 extends vertically. When the positioning member 15 moves to the tilting slot 1212, the tilting rod 13 forms a non-zero angle with respect to the vertical direction. Specifically, when the positioning member 15 is located in the zero-point slot 1211, the tilting rod 13 remains vertical, thus ensuring that the observation direction of the lens 31 is vertical. When the positioning member 15 is located in the tilting slot 1212, the tilting rod 13 tilts and remains in that tilted position, thus tilting the observation direction of the lens 31. Therefore, the above arrangement allows the lens 31 to observe the sample from different angles, enabling multi-angle observation by the lens 31.
[0049] It should be noted that the vertical direction is... Figure 2 The tilting groove 1212 is located in the vertical direction. When the number of tilting grooves 1212 is 1, the tilting groove 1212 is located on one side of the positioning groove 121 along the circumference of the rotating shaft 12. When the number of tilting grooves 1212 is greater than 1, the tilting grooves 1212 are located on both sides of the positioning groove 121 along the circumference of the rotating shaft 12, so that the tilting rod 13 can rotate in different directions, thereby increasing the observation angle of the lens 31, which is beneficial for observing the sample from different angles.
[0050] In some embodiments, the number of inclined slots 1212 is six. The two sides of the positioning slot 121 along the circumference of the rotating shaft 12 are defined as the first side and the second side. Three inclined slots 1212 are located on the first side and arranged along the circumference of the rotating shaft 12; the other three inclined slots 1212 are located on the second side and arranged along the circumference of the rotating shaft 12. Specifically, the central angles corresponding to the distances between the three inclined slots 1212 on the first side and the positioning slot 121 along the circumference of the rotating shaft 12 are 30°, 45°, and 60°, respectively; the central angles corresponding to the distances between the three inclined slots 1212 on the second side and the positioning slot 121 along the circumference of the rotating shaft 12 are 30°, 45°, and 60°, respectively.
[0051] like Figure 6 and Figure 7As shown, in one implementation, the microscope positioning structure 100 includes a locking component 18. The locking component 18 can lock the rotating shaft 12 when the positioning member 15 is located in the zero-point groove 1211 or the tilting groove 1212, so as to prevent the rotating shaft 12 from rotating, thereby improving the positioning accuracy of the positioning member 15 on the rotating shaft 12, and can prevent the tilting rod 13 from rotating, so as to improve the observation accuracy of the lens 31 on the tilting rod 13.
[0052] Specifically, the locking assembly 18 includes a surrounding member 181 and a locking member 182. The surrounding member 181 has a fixing hole 1811 and an adjusting gap 1812. The rotating shaft 12 is at least partially located within the fixing hole 1811. The adjusting gap 1812 connects the fixing hole 1811 and the outer surface of the surrounding member 181. The locking member 182 passes through the base 11 and abuts against or separates from the surrounding member 181. The locking member 182 is used to adjust the adjusting gap 1812 to adjust the diameter of the fixing hole 1811. When the locking member 182 abuts against the surrounding member 181, the locking member 182 can reduce the adjusting gap 1812, thereby reducing the diameter of the fixing hole 1811. This allows the inner wall of the fixing hole 1811 to fit against the rotating shaft 12, and the inner wall of the fixing hole 1811 to exert a force on the rotating shaft 12, thereby fixing the rotating shaft 12 in the fixing hole 1811 to lock the rotating shaft 12. When the locking member 182 separates from the surrounding member 181, the adjusting gap 1812 returns to its initial state, thereby creating a gap between the inner wall of the fixing hole 1811 and the rotating shaft 12, allowing the rotating shaft 12 to rotate when the positioning member 15 separates from the positioning groove 121. It should be noted that the initial state refers to the adjusting gap 1812 when the surrounding member 181 is not subjected to external force, at which time the adjusting gap 1812 is at its maximum.
[0053] In some embodiments, a locking handle 183 may be connected to one end of the locking member 182 located outside the base 11. The locking handle 183 can facilitate the operator's grip, so that the operator can control the movement of the locking member 182 through the locking handle 183, thereby improving the locking efficiency and unlocking efficiency of the locking assembly 18 on the rotating shaft 12.
[0054] In this embodiment, the surrounding member 181 includes a fixed portion 1813 and a movable portion 1814, with an adjustment gap 1812 formed between the fixed portion 1813 and the movable portion 1814. When the locking member 182 abuts against the surrounding member 181, the locking member 182 tightens or squeezes the movable portion 1814 to reduce the adjustment gap 1812. When the locking member 182 separates from the surrounding member 181, the locking member 182 releases the movable portion 1814, and the adjustment gap 1812 returns to its initial state. The surrounding member 181 also includes a surrounding portion 1815, with a fixing hole 1811 formed in the surrounding portion 1815. The fixed portion 1813 and the movable portion 1814 are respectively connected to the surrounding portion 1815. The fixed portion 1813 is fixedly connected to the base 11, while the movable portion 1814 is not fixed to the base 11, allowing the locking member 182 to tighten or squeeze the movable portion 1814, thereby reducing the adjustment gap 1812. With the above settings, the locking component 18 can lock and unlock the rotating shaft 12.
[0055] In some embodiments, the locking member 182 may be a shaft-like structure, comprising a first locking section and a second locking section connected together. The second locking section is at least partially located outside the base 11 and connected to the locking handle 183. The diameter of the first locking section is smaller than the diameter of the second locking section, so that an abutment portion is formed between the first locking section and the second locking section. Specifically, the outer surface of the first locking section is provided with external threads, the fixed part 1813 is provided with a threaded hole, the movable part 1814 is provided with a first through hole, and the base 11 is provided with a second through hole. The inner diameter of the first through hole is substantially equal to the diameter of the first locking section, and the inner diameter of the second through hole is substantially equal to the diameter of the second locking section. The locking member 182 passes through the second through hole and the first through hole in sequence, and is threadedly connected to the threaded hole on the fixed part 1813 through the external threads on the outer surface of the first locking section. At this time, the abutment portion abuts against the movable part 1814. When it is necessary to reduce the adjustment gap 1812, the locking member 182 is rotated in the first rotation direction, causing it to move closer to the fixed part 1813. Due to the presence of the abutment part, the movable part 1814 moves closer to the fixed part 1813, thereby reducing the adjustment gap 1812 and locking the rotating shaft 12. When unlocking the rotating shaft 12, the locking member 182 is rotated in the second rotation direction, causing it to move away from the fixed part 1813. At this time, the movable part 1814 moves away from the fixed part 1813, thereby returning the adjustment gap 1812 to its initial state and unlocking the rotating shaft 12. The first and second rotation directions are opposite. With the above configuration, the locking member 182 can tighten the movable part 1814 to reduce the adjustment gap 1812.
[0056] Understandably, in some embodiments, the base 11 has a threaded hole, and the locking member 182 is threadedly connected to the base 11. When the locking member 182 is rotated in the first rotation direction, the locking member 182 can pass through the threaded hole and abut against the movable part 1814. At this time, the locking member 182 can squeeze the movable part 1814 to reduce the adjustment gap 1812, that is, the locking member 182 can squeeze the movable part 1814, causing the movable part 1814 to move closer to the fixed part 1813, thereby reducing the adjustment gap 1812 and locking the rotating shaft 12. When the locking member 182 is rotated in the second rotation direction, the locking member 182 can separate from the movable part 1814. At this time, the adjustment gap 1812 returns to its initial state, thereby unlocking the rotating shaft 12.
[0057] It should be noted that, through the cooperation of the locking component 18, the positioning groove 121 and the positioning element 15, this application enables the microscope positioning structure 100 to have a dual constraint effect, so as to improve the stability of the rotating shaft 12 during the use of the lens 31, and avoid the lens 31 from shifting and affecting the observation effect.
[0058] like Figure 5 and Figure 6 As shown, in one implementation, the depth of the zero-point groove 1211 along the radial direction of the rotating shaft 12 is greater than the depth of the tilt groove 1212 along the radial direction of the rotating shaft 12. The zero-point groove 1211 serves as a positioning groove 121 when the rotating shaft 12 is locked. That is, when the positioning member 15 is located within the zero-point groove 1211, the microscope positioning structure 100 is in a non-working state, and the microscope positioning structure 100 can be stored or stored. Therefore, through the above arrangement, the positioning of the rotating shaft 12 is more stable when the zero-point groove 1211 of the rotating shaft 12 abuts against the positioning member 15, thus preventing the rotating shaft 12 from rotating. When the positioning member 15 is located in the tilt groove 1212, it is only necessary for the tilt groove 1212 to indicate to the operator that the rotating shaft 12 has been rotated to the desired position. At this time, the locking of the rotating shaft 12 is achieved by the locking assembly 18, so the depth of the tilt groove 1212 can be less than the depth of the zero-point groove 1211.
[0059] It should be noted that when the positioning member 15 is located in the zero point groove 1211, the rotating shaft 12 can also be locked by the locking component 18. This application does not impose any restrictions, as long as the rotating shaft 12 does not rotate when the positioning member 15 is located in the zero point groove 1211.
[0060] For example, the positioning member 15 is a shaft, and the zero-point groove 1211 includes a cylindrical section 1211a and a frustum section 1211b. The two ends of the cylindrical section 1211a are respectively connected to the surface of the rotating shaft 12 and the frustum section 1211b. The inner diameter of the cylindrical section 1211a is the same as the diameter of the positioning member 15, which allows the positioning member 15 to fit against the inner wall of the cylindrical section 1211a, thereby preventing the rotating shaft 12 from shifting relative to the positioning member 15. A hemispherical portion 152 is formed at one end of the positioning member 15 near the rotating shaft 12. When the positioning member 15 moves to the zero-point groove 1211, the hemispherical portion 152 is located within the frustum section 1211b and at least partially fits against the inner wall of the frustum section 1211b. With the above settings, the hemispherical part 152 and the frustum section 1211b can be adapted to each other, so that the positioning member 15 and the zero point groove 1211 can fit more closely, thereby further improving the accuracy of the relative position of the rotating shaft 12 and the positioning member 15.
[0061] For example, the inclined groove 1212 is a conical groove, and when the positioning member 15 moves into the inclined groove 1212, the hemisphere 152 is at least partially located within the inclined groove 1212. The hemisphere 152 moves in or out of the inclined groove 1212 along the inner wall of the inclined groove 1212 as the rotating shaft 12 rotates. With this configuration, the inclined groove 1212 has a fixing effect on the hemisphere 152, that is, the inclined groove 1212 can provide a prompt to the operator so that the operator can know the rotation angle of the rotating shaft 12.
[0062] Furthermore, with the above-mentioned arrangement, when the rotating shaft 12 rotates, the tilting groove 1212 will not restrict the positioning member 15, thereby allowing the positioning member 15 to move along the inner wall of the tilting groove 1212 - the outer wall of the rotating shaft 12 - the inner wall of another tilting groove 1212. Thus, without the need to operate the positioning member 15 to move upward, the positioning member 15 can move between different tilting grooves 1212, thereby improving the operating efficiency of the microscope positioning structure 100.
[0063] It should be noted that both the inclined groove 1212 of the conical groove structure and the frustum section 1211b can form a "V" surface structure, thereby enabling the hemispherical portion 152 to achieve a centering effect, further improving the positioning accuracy of the positioning member 15 for the rotating shaft 12. In addition, the "V" surface structure formed by the inclined groove 1212 can also improve the flexibility and convenience of moving the positioning member 15 out of or into the inclined groove 1212.
[0064] like Figure 7As shown, as one implementation, the microscope positioning structure 100 also includes a damping component 19. During the rotation of the rotating shaft 12, the damping component 19 is used to provide a preload force to the rotating shaft 12, so as to prevent the rotating shaft 12 from rotating too fast due to the lack of constraint when the positioning member 15 does not abut against the positioning groove 121, thereby preventing the tilting rod 13 on the rotating shaft 12 from rotating too fast, and thus preventing the lens 31 on the tilting rod 13 from colliding with other objects.
[0065] Specifically, the damping assembly 19 includes a mounting plate 191 and a damping element 192. The mounting plate 191 is fixedly connected to the surrounding member 181. One end of the damping element 192 is fixed to the rotating shaft 12, and the other end of the damping element 192 is fixed to the mounting plate 191.
[0066] In some embodiments, the damping element 192 can be a torsion spring, which is sleeved on the rotating shaft 12. One end of the torsion spring is fixed to the mounting plate 191, and the other end of the torsion spring is fixed to the rotating shaft 12. Specifically, when the positioning element 15 is located in the zero-point groove 1211, the torsion spring is in an unloaded state; when the positioning element 15 moves from the zero-point groove 1211 to the inclined groove 1212, the torsion spring generates a preload due to the rotation of the rotating shaft 12. This preload can hinder the rotation of the rotating shaft 12, thereby preventing the rotating shaft 12 from rotating too fast. It should be noted that the damping element 192 can also be other structures, which are not limited in this application.
[0067] For example, the mounting plate 191 can be sleeved on the rotating shaft 12 and rotatably connected to the rotating shaft 12, so that the mounting plate 191 can be supported by the rotating shaft 12 and the surrounding member 181 at the same time, thereby improving the installation stability of the mounting plate 191 and thus facilitating the normal operation of the damping member 192.
[0068] like Figures 2 to 4 As shown, in one implementation, the microscope positioning structure 100 includes a linear bearing 21, which passes through and connects to the base 11. The positioning element 15 is a shaft that passes through the linear bearing 21. The linear bearing 21 is a mechanical component for linear motion, enabling high-precision, low-friction reciprocating motion. In this application, the positioning element 15 can achieve high-precision up-and-down movement via the linear bearing 21, thereby improving the positioning accuracy of the positioning element 15 relative to the rotating shaft 12. It should be noted that the base 11 has a bearing hole 111, and the linear bearing 21 is installed within the bearing hole 111. The bearing hole 111 has an H6 precision rating to ensure accurate installation of the linear bearing 21 on the base 11 and to prevent the linear bearing 21 from wobbling.
[0069] Furthermore, when the positioning member 15 abuts against the zero-point groove 1211, a large shearing force is generated between the positioning member 15 and the zero-point groove 1211. If the positioning member 15 is directly moved out of the zero-point groove 1211, the positioning member 15 will be stuck due to the shearing force. The linear bearing 21 of this application can reduce or avoid the above-mentioned shearing force, which is conducive to the positioning member 15 being moved out of the zero-point groove 1211.
[0070] In this embodiment, a positioning hole 144 is provided at the end of the receiving cover 14 away from the rotating shaft 12. The positioning member 15 passes through the positioning hole 144 and is at least partially located inside the receiving cover 14. The diameter of the positioning hole 144 is the same as the inner diameter of the linear bearing 21, and the axis of the positioning hole 144 coincides with the axis of the linear bearing 21. Through the above arrangement, the positioning hole 144 and the inner diameter hole of the linear bearing 21 can be kept overlapping in the vertical direction, thereby preventing the positioning member 15 from shifting, which is beneficial for the positioning member 15 to maintain vertical movement, and thus helps to improve the positioning accuracy of the positioning member 15 on the rotating shaft 12.
[0071] It should be noted that the positioning hole 144 adopts an H6 level of precision, which can further improve the positioning accuracy of the positioning component 15 to the rotating shaft 12.
[0072] like Figure 1 and Figure 9 As shown, this application also provides a microscope 300, which includes a microscope positioning structure 100 and a lens 31. The lens 31 is connected to the tilting rod 13 of the microscope positioning structure 100 so that the lens 31 can move with the rotation of the tilting rod 13, thereby increasing the observation angle of the lens 31 on the sample, and making the lens 31 suitable for samples with uneven surfaces, three-dimensional structures or requiring multi-angle analysis.
[0073] In some embodiments, the lens 31 can slide along the extension direction of the tilting rod 13 so that the position of the lens 31 can be adjusted according to actual needs.
[0074] In this application, the microscope 300 is an electron microscope. Specifically, the microscope 300 includes a motherboard 32, and a lens 31 is electrically connected to the motherboard 32 so that the motherboard 32 can control the lens 31 to observe the sample, and can store and transmit the sample information collected by the lens 31 to an external terminal device.
[0075] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A microscope positioning structure (100), characterized in that, include: Base (11); A rotating shaft (12) is rotatably connected to the base (11), and the rotating shaft (12) is provided with a plurality of positioning grooves (121) along its circumference; An inclined rod (13) is fixedly connected at one end to the rotating shaft (12) and at the other end to the lens (31) of the microscope (300). A receiving cover (14) is fixedly connected to the base (11); Positioning element (15) passes through the receiving cover (14) and the base (11), and moves along its extension direction so that the positioning element (15) abuts or separates from the positioning groove (121); An elastic element (16) is located inside the receiving cover (14). The elastic element (16) contracts and is fixed between the receiving cover (14) and the positioning element (15), so that the positioning element (15) has a tendency to move toward the rotating shaft (12).
2. The microscope positioning structure (100) according to claim 1, characterized in that, The positioning groove (121) includes a zero-point groove (1211) and at least one inclined groove (1212). When the positioning member (15) moves to the zero-point groove (1211), the inclined rod (13) extends in the vertical direction. When the positioning member (15) moves to the inclined groove (1212), the inclined rod (13) forms a non-zero angle relative to the vertical direction.
3. The microscope positioning structure (100) according to claim 1 or 2, characterized in that, The microscope positioning structure (100) includes a locking assembly (18), which includes a surrounding member (181) and a locking member (182). The surrounding member (181) has a fixing hole (1811) and an adjustment gap (1812). The rotating shaft (12) is at least partially located in the fixing hole (1811). The adjustment gap (1812) connects the fixing hole (1811) and the outer surface of the surrounding member (181). The locking member (182) passes through the base (11) and abuts against or separates from the surrounding member (181). The locking member (182) is used to adjust the adjustment gap (1812) to adjust the aperture of the fixing hole (1811).
4. The microscope positioning structure (100) according to claim 3, characterized in that, The surrounding member (181) includes a fixed part (1813) and a movable part (1814). An adjustment gap (1812) is formed between the fixed part (1813) and the movable part (1814). When the locking member (182) abuts against the surrounding member (181), the locking member (182) tightens or squeezes the movable part (1814) to reduce the adjustment gap (1812). When the locking member (182) separates from the surrounding member (181), the locking member (182) releases the movable part (1814), and the adjustment gap (1812) returns to its initial state.
5. The microscope positioning structure (100) according to claim 2, characterized in that, The depth of the zero-point groove (1211) along the radial direction of the rotating shaft (12) is greater than the depth of the inclined groove (1212) along the radial direction of the rotating shaft (12); the positioning member (15) is axial, and the zero-point groove (1211) includes a cylindrical section (1211a) and a frustum section (1211b). The two ends of the cylindrical section (1211a) are respectively connected to the surface of the rotating shaft (12) and the frustum section (1211b). The inner diameter of the cylindrical section (1211a) is the same as the diameter of the positioning member (15). A hemisphere is formed at one end of the positioning member (15) near the rotating shaft (12). When the positioning member (15) moves to the zero-point groove (1211), the hemispherical part (152) is located inside the frustum section (1211b) and fits against the inner wall of the frustum section (1211b); the inclined groove (1212) is a conical groove, and when the positioning member (15) moves to the inclined groove (1212), the hemispherical part (152) is at least partially located inside the inclined groove (1212); the hemispherical part (152) moves out of or into the inclined groove (1212) along the inner wall of the inclined groove (1212) as the rotating shaft (12) rotates.
6. The microscope positioning structure (100) according to claim 3, characterized in that, The microscope positioning structure (100) further includes a damping assembly (19), which includes a mounting plate (191) and a damping element (192). The mounting plate (191) is fixedly connected to the surrounding element (181), one end of the damping element (192) is fixed to the rotating shaft (12), and the other end of the damping element (192) is fixed to the mounting plate (191).
7. The microscope positioning structure (100) according to claim 1, characterized in that, The microscope positioning structure (100) includes a linear bearing (21), which passes through the base (11) and is connected to the base (11). The positioning member (15) is axial and passes through the linear bearing (21).
8. The microscope positioning structure (100) according to claim 7, characterized in that, The receiving cover (14) has a positioning hole (144) at one end away from the rotating shaft (12). The positioning member (15) passes through the positioning hole (144) and is at least partially located inside the receiving cover (14). The diameter of the positioning hole (144) is consistent with the inner diameter of the linear bearing (21), and the axis of the positioning hole (144) coincides with the axis of the linear bearing (21).
9. The microscope positioning structure (100) according to claim 1, characterized in that, The positioning member (15) has a protrusion (151) formed thereon. The inner wall of the end of the receiving cover (14) away from the rotating shaft (12) is defined as the abutting inner wall (143). The two ends of the elastic member (16) abut against the protrusion (151) and the abutting inner wall (143) respectively. The protrusion (151) is an annular protrusion structure. The end of the positioning member (15) away from the rotating shaft (12) is located outside the receiving cover (14) and is connected to a positioning handle (17) for operating the movement of the positioning member (15).
10. A microscope (300), characterized in that, include: The microscope positioning structure (100) as described in any one of claims 1 to 9; Lens (31), which is connected to the tilting rod (13) of the microscope positioning structure (100).
11. The microscope (300) according to claim 10, characterized in that, The microscope (300) is an electron microscope; the microscope (300) includes a motherboard (32), and the lens (31) is electrically connected to the motherboard (32).