A copper mesh clamping device for electron microscopy sections

Abstract

This utility model discloses a copper mesh clamping device for electron microscopy sectioning, including a mounting plate with a first clamping arm and a guide frame spaced apart at its bottom. The end of the first clamping arm is bent toward the side away from the guide frame. A second clamping arm is slidably connected to the guide frame, and the end of the second clamping arm is connected to the bottom of the mounting plate through an elastic unit. The end of the second clamping arm away from the guide frame has a structure with one end open and one end closed, and is bent toward the first clamping arm. A push plate is symmetrically arranged on opposite sides of the second clamping arm, slidably connected to the guide frame, and axially perpendicular to the elastic unit. Under the action of the elastic unit, the second clamping arm cooperates with the first clamping arm to clamp the copper mesh.

Description

Technical Field

[0001] This utility model belongs to the field of copper mesh sectioning technology for electron microscopes, and specifically relates to a copper mesh sectioning device for electron microscopes. Background Technology

[0002] In the field of electron microscopy, copper mesh for electron microscopy sections is a key carrier for sample observation and analysis. Copper mesh usually has a fine mesh structure to support electron microscope samples, and its stable and accurate clamping is crucial for obtaining high-quality electron microscope images.

[0003] Currently, the main clamping tool used in the clamping operation of copper mesh sections for electron microscopy is tweezers. This method relies on the operator's hand strength and experience to fix the copper mesh. However, this method not only makes it difficult to ensure the uniformity and stability of the clamping force, which can easily lead to deformation or damage of the copper mesh due to uneven force, but also makes the operation cumbersome and inefficient. Especially when processing a large number of samples, it consumes a lot of time and manpower, which seriously affects the progress of the experiment. Utility Model Content

[0004] The purpose of this invention is to provide a copper mesh clamping device for electron microscopy sections, which solves the technical defects in the prior art. When clamping the copper mesh with tweezers, the operator's hand strength and experience are required to fix the copper mesh. This not only makes it difficult to ensure the uniformity and stability of the clamping force, but also easily leads to deformation or damage of the copper mesh due to uneven force.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A copper mesh clamping device for electron microscopy sections, comprising: The mounting plate has a first clamping arm and a guide frame spaced apart at its bottom, and the end of the first clamping arm is bent toward the side away from the guide frame; The second clamping arm is slidably connected to the guide frame. The end of the second clamping arm is connected to the bottom of the mounting plate through an elastic unit. The end of the second clamping arm away from the guide frame has a structure with one end open and the other end closed, and it is bent toward the first clamping arm. The push plate is symmetrically arranged on both sides of the second clamping arm, slidably connected to the guide frame, and axially perpendicular to the elastic unit; Under the action of the elastic unit, the second clamping arm cooperates with the first clamping arm to clamp the copper mesh.

[0006] Furthermore, the end of the first clamping arm connected to the mounting plate is axially parallel to the guide frame; The end of the second clamping arm away from the guide frame is a U-shaped structure, and the bending direction of the U-shaped structure is the same as the bending direction of the end of the first clamping arm; The inner diameter of the U-shaped structure is greater than the width of the end of the first clamping arm; When the second clamping arm cooperates with the first clamping arm to clamp the copper mesh under the action of the elastic unit, the second clamping arm is located below the first clamping arm.

[0007] Furthermore, the elastic unit is a spring.

[0008] Furthermore, the guide frame has grooves on opposite sides, and the second clamping arm has protrusions on opposite sides. The protrusions extend outward through the grooves and are connected to the push plate. The push plate has a rectangular structure, and its width is greater than the width of the groove.

[0009] Furthermore, the end of the groove extends along the entire length of the guide frame.

[0010] Furthermore, a first insertion hole is provided on the inner bottom surface of the guide frame, and a second insertion hole is provided on the second clamping arm. The first insertion hole and the second insertion hole are connected by a plug rod.

[0011] Furthermore, the outer side of the guide frame is provided with scale.

[0012] Furthermore, both the first and second sockets are provided with multiple sockets.

[0013] Furthermore, the cross-section of the guide frame is rectangular.

[0014] Furthermore, the mounting plate has a horizontal structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The end of the second clamping arm is connected to the bottom of the mounting plate through an elastic unit. Under the action of the elastic unit, the second clamping arm can closely cooperate with the first clamping arm and provide appropriate clamping force according to the actual situation of the copper mesh. This ensures that the copper mesh is firmly clamped while preventing it from moving or shaking, and also avoids damage to the copper mesh due to excessive clamping force.

[0016] 2. The end of the second clamping arm away from the guide frame is designed with a U-shaped structure, and the bending direction is the same as the bending direction of the end of the first clamping arm. Compared with the clamping arm structure of ordinary tweezers, the U-shaped structure increases the contact area with the copper mesh, which can distribute the clamping force more evenly, reduce the risk of damage to the copper mesh due to excessive local force, and improve the firmness of the clamping, preventing the copper mesh from sliding or falling off during observation.

[0017] 3. The spring has a defined elastic coefficient, which can provide a stable and uniform clamping force when the second clamping arm cooperates with the first clamping arm to clamp the copper mesh.

[0018] 4. The combination of the groove and the protrusion forms a low-friction sliding structure, which reduces the resistance during the movement of the second clamping arm.

[0019] 5. When it is necessary to clamp copper mesh of different sizes or shapes, the second clamping arm can be moved to a more suitable position according to the actual situation to achieve more precise and stable clamping, thereby improving the flexibility and convenience of operation.

[0020] 6. The insertion rod is inserted between the first and second insertion holes, which can provide precise positioning for the second clamping arm and avoid the second clamping arm being constantly affected by the force of the elastic unit, thereby damaging the copper mesh.

[0021] 7. By setting a scale, the movement position of the second clamping arm can be recorded when the second clamping arm and the first clamping arm are used to clamp different types of copper mesh, for future reference. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A side view of a copper mesh clamping device for electron microscopy sectioning provided by this utility model; Figure 2 A top view of a copper mesh clamping device for electron microscopy sectioning provided by this utility model; Figure 3 A three-dimensional schematic diagram of a copper mesh clamping device for electron microscopy sectioning provided by this utility model; The components are: 1. Mounting plate; 2. First clamping arm; 3. Guide frame; 4. Horizontal end; 5. Protrusion; 6. Push plate; 7. Elastic unit; 8. Bending end; 9. First insertion hole; 10. Second insertion hole; 11. Insertion rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] To address the technical deficiencies mentioned in the background section, this embodiment provides a copper mesh clamping device for electron microscope slides. The present invention will be further described in detail below with reference to the accompanying drawings: like Figures 1-3As shown, a copper mesh clamping device for electron microscopy sectioning includes a mounting plate 1, which is a horizontal structure. A first clamping arm 2 and a guide frame 3 are spaced apart at the bottom of the mounting plate 1. The guide frame 3 has a rectangular cross-section. Both the first clamping arm 2 and the guide frame 3 are axially perpendicular to the mounting plate 1. The end of the first clamping arm 2 is bent away from the guide frame 3. A second clamping arm is slidably connected within the guide frame 3. The horizontal end 4 of the second clamping arm is connected to the bottom of the mounting plate 1 via an elastic unit 7. The end of the second clamping arm away from the guide frame 3 has a structure with one end open and one end closed (bent end 8), and is bent towards the first clamping arm 2. A push plate 6 is symmetrically arranged on opposite sides of the second clamping arm, slidably connected to the guide frame 3, and axially perpendicular to the elastic unit 7. Under the action of the elastic unit 7, the second clamping arm cooperates with the first clamping arm 2 to clamp the copper mesh.

[0031] In the above structure, since the horizontal end 4 of the second clamping arm is connected to the bottom of the mounting plate 1 through the elastic unit 7, the clamping device can adaptively provide a suitable clamping force according to the thickness of the copper mesh by utilizing the force of the elastic unit 7 when clamping the copper mesh. This ensures that the copper mesh is firmly clamped and prevents the copper mesh from moving or shaking after being clamped, thus avoiding the problem of deformation or damage to the copper mesh. This solves the technical defects caused by the existing technology that relies on the operator's hand strength and experience to fix the copper mesh.

[0032] In addition, since the curved end 8 of the second clamping arm has a structure with one end open and the other end closed, the contact area with the copper mesh is increased, making the clamping more secure. At the same time, the open and closed structure can better fit the edge of the copper mesh, preventing the copper mesh from slipping off, and further improving the stability of the clamping.

[0033] The push plate 6 is symmetrically arranged on both sides of the second clamping arm and is slidably connected to the guide frame 3. At the same time, it is axially perpendicular to the elastic unit 7. The operator can easily make the second clamping arm slide in the guide frame 3 by pushing the push plate 6, thereby realizing the clamping and releasing operation of the copper mesh.

[0034] Furthermore, since the clamping device mainly adapts to the size changes of the copper mesh through the elastic deformation of the elastic unit 7 and the sliding of the second clamping arm, it can be applied to copper meshes of different specifications. Whether the copper mesh is large or small, stable clamping can be achieved under the action of the elastic unit 7 by adjusting the position of the second clamping arm.

[0035] like Figure 1As shown, the end of the first clamping arm 2 connected to the mounting plate 1 is axially parallel to the guide frame 3. The end of the second clamping arm away from the guide frame 3 is a U-shaped structure (bent end 8). The bending direction of the U-shaped structure is the same as the bending direction of the end of the first clamping arm 2. The inner diameter of the U-shaped structure is greater than the width of the end of the first clamping arm 2. Under the action of the elastic unit 7, when the second clamping arm cooperates with the first clamping arm 2 to clamp the copper mesh, the second clamping arm is located below the first clamping arm 2.

[0036] First, the first clamping arm 2 is axially parallel to the end connected to the mounting plate 1 and the guide frame 3. When the second clamping arm slides in the guide frame 3, the first clamping arm 2 can remain relatively stable and adapt to the movement direction of the second clamping arm, avoiding clamping offset or instability caused by confusion in the positional relationship between the two.

[0037] Secondly, the end of the second clamping arm furthest from the guide frame 3 is designed with a U-shaped structure, and the bending direction is the same as that of the end of the first clamping arm 2. Compared with the ordinary structure, the U-shaped structure increases the contact area with the copper mesh, which can more evenly distribute the clamping force, reduce the risk of damage to the copper mesh due to excessive local force, and improve the clamping firmness, preventing the copper mesh from slipping or falling off. At the same time, since the inner diameter of the U-shaped structure is larger than the width of the end of the first clamping arm 2, under the action of the elastic unit 7, when the second clamping arm and the first clamping arm 2 cooperate to clamp the copper mesh, the end of the first clamping arm 2 can smoothly enter the opening of the U-shaped structure, so that the copper mesh is stably clamped between the two, ensuring the clamping tightness.

[0038] In practice, the elastic unit 7 is a spring, which provides a stable and uniform clamping force when the second clamping arm cooperates with the first clamping arm 2 to clamp the copper mesh. When clamping the copper mesh, simply push the push plate 6 to move the second clamping arm against the spring force, then place the copper mesh between the first and second clamping arms. Releasing the push plate 6 will automatically reset the second clamping arm, thus clamping the copper mesh. This reduces the operator's workload and improves operational efficiency.

[0039] It is worth noting that, in actual operation, the type of spring can be selected according to the structure of the copper mesh, but this solution is not limited to this.

[0040] Furthermore, such as Figure 1 and Figure 3 As shown, guide frames 3 have grooves on opposite sides, and the horizontal ends 4 of the second clamping arm have protrusions 5 on opposite sides. The protrusions 5 extend outward through the grooves and are connected to the push plate 6. The push plate 6 is a rectangular structure, and the width of the push plate 6 is greater than the width of the groove.

[0041] The sliding grooves on both sides of the guide frame 3 cooperate with the protrusions 5 on both sides of the second clamping arm to provide a linear guide for the movement of the second clamping arm. When the operator manually pushes the push plate 6 to move the second clamping arm, the protrusions 5 can only slide in the sliding groove, ensuring that the second clamping arm moves smoothly along the predetermined trajectory and avoiding inaccurate clamping due to shaking or deviation.

[0042] Furthermore, during the sliding of the second clamping arm, a low-friction sliding structure is formed between the groove and the protrusion 5, which reduces the resistance during the movement of the second clamping arm. The operator only needs to apply a small force to push the push plate 6, which can easily make the second clamping arm slide within the guide frame 3, thereby realizing the clamping and releasing operation of the copper mesh.

[0043] Furthermore, the end of the slide extends along the entire length of the guide frame 3, and a first insertion hole 9 is provided on the inner bottom surface of the guide frame 3, and a second insertion hole 10 is provided on the second clamping arm. There are multiple first insertion holes 9 and second insertion holes 10, and the first insertion hole 9 and the second insertion hole 10 are connected by a plug rod 11. Meanwhile, a scale is provided on the outer side of the guide frame 3.

[0044] When clamping copper mesh, the multiple first insertion holes 9 and second insertion holes 10 provide more options for adjusting the position of the second clamping arm. Operators can flexibly select appropriate first insertion holes 9 and second insertion holes 10 to connect according to the size and shape of the copper mesh and experimental requirements, thereby adjusting the matching position of the second clamping arm and the first clamping arm 2, realizing effective clamping of copper mesh of different specifications, and improving the applicability and operational flexibility of the equipment.

[0045] The scale set on the outside of the guide frame 3 provides operators with a precise position reference. When clamping the same type of copper mesh, it is only necessary to record the scale position of the second clamping arm on the guide frame 3 when clamping the copper mesh for the first time. When clamping the same type of copper mesh again, the second clamping arm can be moved directly to that scale position.

[0046] In application, hold the mounting plate 1 with its top against the palm of your hand, then push the push plate 6 with your fingers to move the second clamping arm toward the end of the first clamping arm 2. At this time, the gap between the top of the bent end 8 and the bottom of the first clamping arm 2 gradually increases. Then, position the copper mesh to be clamped between the top of the bent end 8 and the bottom of the first clamping arm 2, and slowly release the push plate 6. This allows the second clamping arm to reset using the force of the elastic unit 7. During the reset process, the bent end 8 firmly clamps the copper mesh to the bottom of the first clamping arm 2. During this process, depending on the material of the clamped copper mesh, choose whether to connect the corresponding first insertion hole 9 and second insertion hole 10 with the insertion rod 11 to position the second clamping arm, preventing the elastic unit 7 from applying continuous force and avoiding damage to the copper mesh.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit its protection scope. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading this utility model, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the utility model, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the utility model.

Claims

1. A copper grid holding device for electron microscopy sectioning, characterized in that, include: The mounting plate has a first clamping arm and a guide frame spaced apart at its bottom, and the end of the first clamping arm is bent toward the side away from the guide frame; The second clamping arm is slidably connected to the guide frame. The end of the second clamping arm is connected to the bottom of the mounting plate through an elastic unit. The end of the second clamping arm away from the guide frame has a structure with one end open and the other end closed, and it is bent toward the first clamping arm. The push plate is symmetrically arranged on both sides of the second clamping arm, slidably connected to the guide frame, and axially perpendicular to the elastic unit; Under the action of the elastic unit, the second clamping arm cooperates with the first clamping arm to clamp the copper mesh.

2. The copper grid holder apparatus for electron microscopy sectioning according to claim 1, wherein, The end of the first clamping arm that is connected to the mounting plate is axially parallel to the guide frame. The end of the second clamping arm away from the guide frame is a U-shaped structure, and the bending direction of the U-shaped structure is the same as the bending direction of the end of the first clamping arm; The inner diameter of the U-shaped structure is greater than the width of the end of the first clamping arm; When the second clamping arm cooperates with the first clamping arm to clamp the copper mesh under the action of the elastic unit, the second clamping arm is located below the first clamping arm.

3. The copper grid holder apparatus for electron microscopy sectioning according to claim 1 or 2, wherein The elastic element is a spring.

4. The copper grid holder apparatus for electron microscopy sectioning of claim 1, wherein, The guide frame has grooves on opposite sides, and the second clamping arm has protrusions on opposite sides. The protrusions extend outward through the grooves and are connected to the push plate. The push plate has a rectangular structure, and its width is greater than the width of the groove.

5. The copper grid holder apparatus for electron microscopy sectioning according to claim 4, wherein The end of the chute extends along the entire length of the guide frame.

6. The copper grid holder apparatus for electron microscopy sectioning of claim 4, wherein, A first insertion hole is provided on the inner bottom surface of the guide frame, and a second insertion hole is provided on the second clamping arm. The first insertion hole and the second insertion hole are connected by a plug rod.

7. The copper grid holder apparatus for electron microscopy sectioning according to claim 6, wherein The guide frame has scale markings on its outer side.

8. The copper grid holder apparatus for electron microscopy sectioning according to claim 6, wherein Both the first and second sockets have multiple sockets.

9. The copper grid holder apparatus for electron microscopy sectioning of claim 1, wherein, The cross-section of the guide frame is rectangular.

10. The copper grid holder apparatus for electron microscopy sectioning of claim 1, wherein, The mounting plate has a horizontal structure.

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