Rapid objective lens switching structure for microscope

Abstract

The utility model provides a rapid objective lens switching structure for a microscope, which relates to the field of microscope structures and comprises a shell and a connecting channel, the shell is connected with a microscope body, the inner wall of the connecting channel is provided with internal threads, and the connecting channel extends towards the inside of a cavity of the shell; the objective lens comprises an objective lens shell and a short thread, the short thread is arranged at the connecting end of the objective lens shell, the objective lens shell can extend into the connecting channel, the short thread is connected with the thread on the inner wall of the connecting channel, and the number of turns of the short thread is smaller than 1; the limiting piece is used for applying force in the specified direction to the objective lens shell so that the objective lens shell can be attached to the inner wall of the connecting channel, through the synergistic effect of the short threads and the limiting piece, the number of turns of screwing of the short threads is greatly reduced, rapid mounting and dismounting of the objective lens are achieved, and the operation efficiency is remarkably improved; the limiting piece provides secondary locking after threaded fastening, and the position stability of the limiting piece under the working condition of vibration or inclination is ensured.

Description

Technical Field

[0001] This utility model relates to the field of microscope structure, and in particular to a rapid objective lens switching structure for microscopes. Background Technology

[0002] In the field of optical instruments, the method of fixing objectives and objective turrets directly affects the operational efficiency and stability of the equipment. Traditional solutions often employ long thread structures or independent snap-fit ​​designs: long threads achieve fastening through multiple turns, offering high stability but time-consuming assembly and disassembly, especially in the confined space of objective turrets; independent snap-fits, while allowing for quick assembly and disassembly, are prone to displacement due to mechanical vibration or external impact in high-precision applications, leading to optical path misalignment. Existing technologies struggle to balance the demands for rapid assembly and disassembly with high stability, thus limiting the ease of operation and reliability of precision optical equipment. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a quick objective lens switching structure for microscopes. The technical problem to be solved by this utility model is that the existing objective lens fixing structure cannot simultaneously achieve high-efficiency disassembly and high-stability locking, resulting in cumbersome operation and easy to affect the accuracy of the optical system.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick objective lens switching structure for a microscope, comprising a connecting body, including a housing and a connecting channel, the housing being connected to the microscope body, the inner wall of the connecting channel having an internal thread, and the connecting channel extending into the cavity of the housing; an objective lens, including an objective lens housing and a short thread, the short thread being formed at the connecting end of the objective lens housing, the objective lens housing being able to extend into the connecting channel, the short thread being connected to the thread on the inner wall of the connecting channel, the number of turns of the short thread being less than 1; and a limiting member, used to apply a force in a specified direction to the objective lens housing to fit the objective lens housing against the inner wall of the connecting channel.

[0005] In a preferred embodiment, the limiting member includes a button, a rod, and a pressing body. The button and the side wall of the housing are elastically slidably connected, the rod and the button are fixedly connected, and the pressing body, which is elastically slidably connected to the inner wall of the housing, has a wedge-shaped hole. When the rod does not press the inclined surface of the wedge-shaped hole, the pressing body is pressed against the objective lens housing under the action of elastic force. When the rod presses the inclined surface of the wedge-shaped hole, the pressing body moves against the elastic force and separates from the connecting channel.

[0006] In a preferred embodiment, the objective lens housing is provided with a pressing body and a corresponding rod on both the left and right sides, and the two rods are fixedly connected to the same button.

[0007] In a preferred embodiment, a limiting groove is formed on the objective lens housing, and the upper and lower end faces of the press-fit body are fitted to the upper and lower side walls of the limiting groove.

[0008] In a preferred embodiment, the limiting member includes a first magnetic sheet and a second magnetic sheet. The second magnetic sheet is fixed to the housing, and the first magnetic sheet is fixed to the objective lens housing. When the objective lens housing and the connecting channel are rotated and stopped, the first magnetic sheet and the second magnetic sheet are attached to each other and are magnetically attracted to each other.

[0009] In a preferred embodiment, magnetic sheet one and magnetic sheet two are provided with interlocking teeth.

[0010] In a preferred embodiment, the housing has an inlet channel, and a bowl-shaped surface extends outward from the outer edge of the inlet channel. The outer diameter of the bowl-shaped surface is larger than the diameter of the objective lens housing.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] This design utilizes the synergistic effect of short threads and limiting components. The short threads significantly reduce the number of turns, enabling rapid installation and removal of the objective lens and dramatically improving operational efficiency. The limiting components provide secondary locking after the threads are tightened, effectively suppressing axial movement and circumferential displacement of the objective lens on the connector by utilizing radial pressure generated by elastic deformation and limiting action, ensuring its positional stability under vibration or tilting conditions. The combination of these two components simplifies the operation process while ensuring the high-precision alignment requirements of the optical system, offering advantages in both convenience and reliability. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0014] Figure 1 This is a structural diagram of the microscope of this utility model.

[0015] Figure 2 This is a diagram of the switching structure in this utility model.

[0016] Figure 3 This is a structural diagram of the objective lens in this utility model.

[0017] Figure 4 This is a schematic diagram showing the position of the short thread in this utility model.

[0018] Figure 5 This is a structural diagram of the single-sided press-fit body in this utility model.

[0019] Figure 6 This is a structural diagram of the double-sided press-fit body in this utility model.

[0020] Figure 7 This is a structural diagram of the magnetically attached limiting component in this utility model.

[0021] The attached figures are labeled as follows:

[0022] 10. Connector; 11. Housing; 12. Connecting channel; 13. Inlet channel; 20. Objective lens; 21. Objective lens housing; 22. Limiting groove; 23. Short thread; 30. Limiting component; 31. Button; 32. Rod; 33. Press-fit body; 34. Magnetic sheet one; 35. Magnetic sheet two; 40. Anti-slip ridge; 50. Microscope body. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Example 1

[0025] like Figures 1-4 This product includes a connector 10, an objective lens 20, a limiting component 30, an anti-slip ridge 40, and a microscope body 50. The connection method between the connector 10 and the microscope body 50 remains unchanged and is the same as the connection method between existing products.

[0026] The connector 10 is a part of the objective lens turret, and the microscope body includes the remaining parts required for the objective lens turret, excluding the connector 10.

[0027] The connector 10 includes a housing 11, a connecting channel 12, and an inlet channel 13. The housing 11 and the microscope body 50 are connected in the existing manner. The connecting channel 12 is opened inside the housing 11 and extends into the housing 11. The inner wall of the connecting channel 12 is provided with internal threads. A mirror is installed in the connecting channel 12 to ensure the smooth flow of the microscope's optical path. The inlet channel 13 is opened on the housing 11 and extends into the housing 11. The connecting channel 12 and the inlet channel 13 are located on the upper and lower sides of the housing 11, respectively, and they correspond to each other.

[0028] A space is maintained between the connecting channel 12 and the inlet channel 13 to allow the limiting member 30 to operate.

[0029] Installing a mirror within the connecting channel 12 is also existing technology.

[0030] Preferably, the outer edge of the inlet channel 13 extends outward to form a bowl-shaped surface, which is larger than the diameter of the objective lens 20, so that the objective lens 20 can quickly enter the inlet channel 13 and the connecting channel 12 under the guidance of the bowl-shaped surface, reducing the time required for frequent alignment during the installation process.

[0031] The objective lens 20 includes an objective lens housing 21, a short thread 23, and an optical assembly located inside the objective lens housing 21. Since the mounting method of the optical assembly and the objective lens housing 21 is existing technology, it will not be described in detail in this embodiment.

[0032] The objective lens housing 21 has a short thread 23 on its connecting end. The number of turns of the short thread 23 is less than 1. After the objective lens housing 21 passes through the inlet channel 13, it is connected to the connecting channel 12 by threads. Because the number of turns of the short thread 23 is much shorter than the number of turns of the connecting threads on common objective lenses, the objective lens 20 and the connector 10 in this product can be installed more quickly. However, compared with the existing technology, the stability is slightly insufficient.

[0033] To address the aforementioned issues, a limiting element 30 is designed between the housing 11 and the objective lens 20 to improve the stability of their connection.

[0034] The anti-slip ridge 40 is fixed to the outer surface of the objective lens housing 21, which serves to prevent slippage when the user rotates the objective lens housing 21.

[0035] Example 2

[0036] like Figure 1 , Figures 5-7 Based on Example 1, the specific structure of the limiting member 30 is designed.

[0037] In the first embodiment, the limiting member 30 includes a button 31, a rod 32, and a pressing body 33. The button 31 is elastically slidably connected to the housing 11 and extends through the side wall of the housing 11. A spring is placed between the button 31 and the housing 11 to provide a basis for elastic movement. The button 31 and the rod 32 are fixedly connected to transmit the force generated when the user presses the button 31. The pressing body 33 is elastically slidably connected to the housing 11 by another spring. A wedge-shaped hole is provided in the pressing body 33, and the rod 32 can interact with the inclined surface of the wedge-shaped hole.

[0038] A limiting groove 22 is provided on the outer wall of the objective lens housing 21.

[0039] In its natural state, the pressing body 33 is pressed against the limiting groove 22 by the elastic force of the spring and fits against the upper and lower sides of the limiting groove, thus limiting the position of the limiting groove 22. When disassembly or assembly is required, the user presses the button 31, the rod 32 is inserted into the wedge-shaped hole and the inclined surface is squeezed, so that the pressing body 33 moves away from the limiting groove 22. At this time, the objective lens 20 is not subjected to the pressure of the limiting part 30. The user can then gently rotate the objective lens 20 with his other hand to disengage the short thread 23 from the internal thread of the connecting channel 12.

[0040] During installation, press and hold button 31, screw in objective lens 20, and then release button 31.

[0041] Preferably, a corresponding rod 32 and a pressing body 33 are designed on both the left and right sides of the objective lens 20. Both rods 32 are fixedly connected to the same button 31, so that the holding force from both sides is more uniform for the objective lens 20.

[0042] In the second case of this embodiment, the limiting member 30 includes a first magnetic piece 34 and a second magnetic piece 35. The second magnetic piece 35 is fixedly connected to the housing 11, and the first magnetic piece 34 is fixedly connected to the objective lens housing 21. When the objective lens 20 is inserted into the inlet channel 13, the short thread 23 is first threadedly connected to the connecting channel 12. When the short thread 23 rotates to the end of its stroke, the first magnetic piece 34 and the second magnetic piece 35 just fit together to form a magnetic attraction limiting.

[0043] When producing objective lens 20, the position of magnetic plate 34 needs to be welded to the position corresponding to the end of the threaded ring of short thread 23.

[0044] This design utilizes the synergistic effect of the short thread 23 and the limiting component 30. The short thread 23 significantly reduces the number of turns, enabling rapid installation and removal of the objective lens and significantly improving operational efficiency. The limiting component 30 provides secondary locking after the thread is tightened, effectively suppressing axial movement and circumferential displacement of the objective lens on the connector 10 by utilizing the radial pressure generated by elastic deformation and the limiting effect, ensuring its positional stability under vibration or tilting conditions. The combination of these two components simplifies the operation process while ensuring the high-precision alignment requirements of the optical system, offering advantages in both convenience and reliability.

[0045] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A rapid objective lens switching structure for a microscope, characterized in that, include: The connector (10) includes a housing (11) and a connecting channel (12). The housing (11) is connected to the microscope body (50). The inner wall of the connecting channel (12) is provided with an internal thread, and the connecting channel (12) extends into the cavity of the housing (11). The objective lens (20) includes an objective lens housing (21) and a short thread (23). The short thread (23) is provided at the connecting end of the objective lens housing (21). The objective lens housing (21) can be inserted into the connecting channel (12). The short thread (23) is connected to the thread on the inner wall of the connecting channel (12). The number of turns of the short thread (23) is less than 1. A limiting member (30) is used to apply a force in a specified direction to the objective lens housing (21) to fit the objective lens housing (21) against the inner wall of the connecting channel (12).

2. The microscope rapid objective switching structure according to claim 1, characterized in that, The limiting member (30) includes a button (31), a rod (32) and a pressing body (33). The button (31) and the side wall of the housing (11) are elastically slidably connected. The rod (32) and the button (31) are fixedly connected. The pressing body (33), which is elastically slidably connected to the inner wall of the housing (11), has a wedge-shaped hole. When the rod (32) does not press the inclined surface of the wedge-shaped hole, the pressing body (33) is pressed against the objective lens housing (21) under the action of elastic force. When the rod (32) presses the inclined surface of the wedge-shaped hole, the pressing body (33) moves against the elastic force and separates from the connecting channel (12).

3. The rapid objective lens switching structure for a microscope according to claim 2, characterized in that, The objective lens housing (21) is designed with a pressing body (33) and a corresponding rod (32) on both the left and right sides. The two rods (32) are fixedly connected to the same button (31).

4. A rapid objective lens switching structure for a microscope according to claim 2 or 3, characterized in that, A limiting groove (22) is provided on the objective lens housing (21), and the upper and lower end faces of the press body (33) are fitted to the upper and lower side walls of the limiting groove (22).

5. The rapid objective lens switching structure for a microscope according to claim 1, characterized in that, The limiting member (30) includes a magnetic sheet one (34) and a magnetic sheet two (35). The magnetic sheet two (35) is fixed on the housing (11), and the magnetic sheet one (34) is fixed to the objective lens housing (21). When the objective lens housing (21) and the connecting channel (12) are rotated and stopped, the magnetic sheet one (34) and the magnetic sheet two (35) are attached to each other and are attracted by each other magnetically.

6. The rapid objective lens switching structure for a microscope according to claim 5, characterized in that, The magnetic sheet one (34) and magnetic sheet two (35) are provided with interlocking teeth.

7. The rapid objective lens switching structure for a microscope according to claim 1, characterized in that, The housing (11) has an inlet channel (13), and a bowl-shaped surface extends outward from the outer edge of the inlet channel (13). The outer diameter of the bowl-shaped surface is larger than the diameter of the objective lens housing (21).

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