Dustproof device of electron microscope

Abstract

The utility model relates to the technical field of electron microscope dust prevention, in particular to a dust-proof device of an electron microscope, which can effectively improve the dust-proof performance of a lens cone and prevent dust from adhering to the interior of the lens cone. Comprising an electron microscope body, two lens cones are symmetrically and fixedly arranged at the observation end of the electron microscope body, dustproof assemblies are symmetrically arranged on the two lens cones in a sleeving mode, each dustproof assembly comprises a fixed lantern ring and a dustproof sleeve, and two L-shaped arc-shaped clamping grooves are formed in the outer wall of each fixed lantern ring in a central symmetry mode; an annular limiting table is fixedly arranged on the inner wall of the rear end of the fixing lantern ring, the fixing lantern ring is fixedly arranged on the lens barrel in a sleeving mode through cooperation of the annular limiting table, two sets of clamping columns are symmetrically and fixedly arranged on the rear portion of the outer wall of the dustproof sleeve, and the dustproof sleeve is arranged on the fixing lantern ring in a sleeving mode through cooperation of the clamping columns and the L-shaped arc-shaped clamping grooves. The rear end of the dustproof sleeve abuts against the annular limiting table, the outer wall of the dustproof sleeve abuts against the inner wall of the fixed lantern ring, and the lens cone is covered with the dustproof sleeve.

Description

Technical Field

[0001] This utility model relates to the technical field of dust prevention for electron microscopes, and in particular to a dust prevention device for electron microscopes. Background Technology

[0002] An electron microscope is a high-end scientific instrument based on electron microscopy technology, which can observe and analyze the microscopic world. It is one of the most widely used microscopes. It can magnify very small objects up to two thousand times. Through an electron microscope, the structure of metal atoms and even the overall arrangement of semiconductor atoms can be clearly observed.

[0003] In the prior art, an electron microscope consists of a microscope tube, a vacuum device, and a power supply cabinet. However, the two microscope tubes at the observation end of the electron microscope are usually exposed to the environment, resulting in poor dust protection and making it easy for dust to adhere to the inside of the microscope tube. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a dustproof device for an electron microscope that can effectively improve the dustproof performance of the microscope tube and prevent dust from adhering to the inside of the microscope tube.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dustproof device for an electron microscope, comprising an electron microscope body, two microscope tubes symmetrically fixed on the observation end of the electron microscope body, and dustproof components symmetrically fitted on both microscope tubes. The dustproof components include a fixing collar and a dustproof sleeve. Two sets of L-shaped arc-shaped grooves are symmetrically formed on the outer wall of the fixing collar. An annular limiting platform is fixed on the inner wall of the rear end of the fixing collar. The annular limiting platform is integrally formed with the fixing collar, and the inner diameter of the annular limiting platform is the same as the outer diameter of the microscope tube. The fixing collar is fixedly fitted onto the microscope tube through the cooperation of the annular limiting platform. Two sets of locking posts are symmetrically fixed at the rear end of the outer wall of the dustproof sleeve. The dustproof sleeve is fitted onto the fixing collar through the cooperation of the locking posts and the L-shaped arc-shaped grooves. The rear end of the dustproof sleeve abuts against the annular limiting platform, the outer wall of the dustproof sleeve abuts against the inner wall of the fixing collar, and the dustproof sleeve covers the microscope tube.

[0007] Preferably, fastening rubber sleeves are fixedly connected to the inner walls of both sets of fixing collars, and two sets of identical L-shaped arc-shaped slots are symmetrically provided on both sets of fastening rubber sleeves.

[0008] Preferably, anti-slip rubber sleeves are fixedly fitted on the outer walls of both sets of dustproof sleeves.

[0009] Preferably, a connecting strap is fixedly connected to the outer wall of each of the two sets of fixing collars, and the other end of each connecting strap is fixedly connected to the outer wall of the two sets of dustproof sleeves respectively.

[0010] Preferably, the outer edges of the two sets of L-shaped arc-shaped slots on the two sets of fixing collars are provided with rounded chamfers.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: During use, the locking post and the L-shaped arc-shaped locking groove are interference-fitted, allowing the locking post to be securely locked in the L-shaped arc-shaped locking groove. Without human intervention, the dustproof sleeve will not rotate on its own, thus ensuring that the dustproof sleeve is stably fitted in the fixing ring, allowing the dustproof sleeve to fasten the lens barrel cover. The dustproof sleeve and the fixing ring work together to prevent dust from entering the lens barrel. When observation through the lens barrel is required, the dustproof sleeve can be held by hand, and by rotating the dustproof sleeve, the locking post is moved towards the opening of the L-shaped arc-shaped locking groove, thereby disengaging the locking post from the L-shaped arc-shaped locking groove. The dustproof sleeve can then be removed from the lens barrel, exposing the lens barrel, which can then be observed by the operator. After use, the dustproof sleeve is put back on the fixing ring, and the lens barrel cover is fastened. This effectively improves the dustproof performance of the lens barrel and prevents dust from adhering to the inside of the lens barrel. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0013] Figure 2 This is a partial isometric structural schematic diagram of this utility model;

[0014] Figure 3 This is an isometric structural diagram of the dustproof component in this utility model;

[0015] Figure 4 This is a bottom-view axonometric structural diagram of the fixing collar in this utility model;

[0016] Figure 5 This is an isometric sectional view of the dustproof sleeve in this utility model.

[0017] The following are labels in the attached diagram: 1. Electron microscope body; 2. Microscope tube; 3. Fixing collar; 4. L-shaped arc groove; 5. Annular limiting stage; 6. Dustproof sleeve; 7. Locking post; 8. Fastening rubber sleeve; 9. Anti-slip rubber sleeve; 10. Connecting strap; 11. Rounded chamfer. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope. Example

[0019] Please see Figures 1-5This utility model discloses a dustproof device for an electron microscope, comprising an electron microscope body 1. Two microscope tubes 2 are symmetrically fixed to the observation end of the electron microscope body 1. Dustproof components are symmetrically fitted onto each of the two microscope tubes 2. Each dustproof component includes a fixing collar 3 and a dustproof sleeve 6. Two sets of L-shaped arc-shaped grooves 4 are symmetrically formed on the outer wall of the fixing collar 3. An annular limiting stage 5 is fixed to the inner wall of the rear end of the fixing collar 3. The annular limiting stage 5 and the fixing collar 3... The components are integrally formed, and the inner diameter of the annular limiting platform 5 is the same as the outer diameter of the lens barrel 2. The fixing collar 3 is fixedly fitted onto the lens barrel 2 through the cooperation of the annular limiting platform 5. Two sets of locking posts 7 are symmetrically fixed at the rear of the outer wall of the dustproof sleeve 6. The dustproof sleeve 6 is fitted onto the fixing collar 3 through the cooperation of the locking posts 7 and the L-shaped arc-shaped locking groove 4. The rear end of the dustproof sleeve 6 abuts against the annular limiting platform 5. The outer wall of the dustproof sleeve 6 abuts against the inner wall of the fixing collar 3, and the dustproof sleeve 6 covers and fastens onto the lens barrel 2. In use, the locking post 7 and the L-shaped arc-shaped locking groove 4 are interference-fitted, allowing the locking post 7 to be securely locked in the L-shaped arc-shaped locking groove 4. Without human intervention, the dustproof sleeve 6 will not rotate on its own, thus ensuring that the dustproof sleeve 6 is stably fitted into the fixing collar 3, covering the lens barrel 2. The dustproof sleeve 6 and the fixing collar 3 work together to protect the lens barrel 2 from dust. When observation is needed through the lens barrel 2, the dustproof sleeve can be held by hand. 6. By rotating the dustproof sleeve 6, the dustproof sleeve 6 moves the locking post 7 towards the opening of the L-shaped arc-shaped locking groove 4, thereby disengaging the locking post 7 from the L-shaped arc-shaped locking groove 4. The dustproof sleeve 6 can then be removed from the lens barrel 2, exposing the lens barrel 2. The operator can then observe through the lens barrel 2. After use, the dustproof sleeve 6 is then fitted onto the fixing ring 3 to cover the lens barrel 2. This effectively improves the dust protection of the lens barrel and prevents dust from adhering inside the lens barrel.

[0020] Both sets of fixing collars 3 are fixedly connected to the inner walls of the fixing collars 3. Both sets of fixing collars 8 are provided with two sets of the same L-shaped arc grooves 4 symmetrically arranged in the center. By setting the fixing collars 8, the dustproof sleeve 6 can fit more tightly with the fixing collar 3 when it is installed, thereby improving the sealing between the dustproof sleeve 6 and the fixing collar 3.

[0021] Both sets of dustproof sleeves 6 are fixedly fitted with anti-slip rubber sleeves 9 on their outer walls; by fitting anti-slip rubber sleeves 9 on the outer walls of the dustproof sleeves 6, the friction of the outer walls of the dustproof sleeves 6 can be increased, so that the hand does not slip when rotating the dustproof sleeves 6.

[0022] Both sets of fixed collars 3 are fixedly connected to the outer walls of the two sets of fixed collars 3, and the other ends of the two sets of connecting straps 10 are fixedly connected to the outer walls of the two sets of dustproof sleeves 6 respectively. By setting the connecting straps 10, after the dustproof sleeve 6 is removed from the fixed collar 3, the dustproof sleeve 6 can be pulled by the connecting straps 10, which can effectively prevent the dustproof sleeve 6 from being lost.

[0023] Both sets of L-shaped arc-shaped slots 4 on the two sets of fixing collars 3 are provided with rounded chamfers 11 on their outer edges; by providing rounded chamfers 11, the locking post 7 can be more easily locked into the L-shaped arc-shaped slots 4.

[0024] This utility model discloses a dustproof device for an electron microscope. In operation, the locking post 7 and the L-shaped arc-shaped groove 4 are interference-fitted, ensuring the locking post 7 is securely engaged in the groove. Without human intervention, the dustproof sleeve 6 will not rotate on its own, thus stably fitting within the fixing ring 3. The dustproof sleeve 6 covers the microscope tube 2, and the engagement between the dustproof sleeve 6 and the fixing ring 3 secures the microscope tube 2. For dust prevention, when observation is required through the telescope tube 2, hold the dust cover sleeve 6 by hand and rotate the dust cover sleeve 6 to move the locking pin 7 towards the opening of the L-shaped arc-shaped locking groove 4, thereby disengaging the locking pin 7 from the L-shaped arc-shaped locking groove 4. Then the dust cover sleeve 6 can be removed from the telescope tube 2, exposing the telescope tube 2. The staff can then observe through the telescope tube 2. After use, the dust cover sleeve 6 can be put back on the fixing ring 3 to cover the telescope tube 2.

[0025] The dustproof device for an electron microscope of this utility model uses common mechanical methods for installation, connection, or setting. Any method that can achieve the desired effect can be implemented. The electron microscope body and microscope tube of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dustproof device of an electron microscope, comprising an electron microscope body (1), two lens barrels (2) are fixed symmetrically on the observation end of the electron microscope body (1), characterized in that, Two mirror tubes (2) are symmetrically sleeved with dustproof assemblies; The dustproof assembly comprises a fixed sleeve ring (3) and a dustproof sleeve (6), two groups of L-shaped arc-shaped clamping grooves (4) are symmetrically formed in the outer wall of the fixed sleeve ring (3), an annular limiting table (5) is fixedly arranged on the inner wall of the rear end of the fixed sleeve ring (3), the annular limiting table (5) is formed integrally with the fixed sleeve ring (3), the inner diameter of the annular limiting table (5) is the same as the outer diameter of the mirror tube (2), the fixed sleeve ring (3) is fixedly sleeved on the mirror tube (2) through cooperation of the annular limiting table (5), two groups of clamping columns (7) are symmetrically fixed on the rear part of the outer wall of the dustproof sleeve (6), the dustproof sleeve (6) is sleeved on the fixed sleeve ring (3) through cooperation of the clamping columns (7) and the L-shaped arc-shaped clamping grooves (4), the rear end of the dustproof sleeve (6) abuts against the annular limiting table (5), the outer wall of the dustproof sleeve (6) abuts against the inner wall of the fixed sleeve ring (3), and the dustproof sleeve (6) is buckled on the mirror tube (2).

2. A dust guard for an electron microscope as claimed in claim 1, wherein The inner walls of the two groups of fixed sleeve rings (3) are fixedly connected with fastening rubber sleeves (8), and the two groups of fastening rubber sleeves (8) are symmetrically provided with two groups of same L-shaped arc-shaped clamping grooves (4).

3. A dust guard for an electron microscope as claimed in claim 2, wherein The outer walls of the two groups of dustproof sleeves (6) are fixedly sleeved with anti-skid rubber sleeves (9).

4. A dust guard for an electron microscope as claimed in claim 3, wherein The outer side walls of the two groups of fixed sleeve rings (3) are fixedly connected with connecting bands (10), and the other ends of the two groups of connecting bands (10) are fixedly connected with the outer side walls of the two groups of dustproof sleeves (6).

5. A dust guard for an electron microscope as claimed in claim 4, wherein The outer edges of the two groups of L-shaped arc-shaped clamping grooves (4) on the two groups of fixed sleeve rings (3) are provided with arc chamfers (11).

Images