Vacuum environment-based screen changing device

Abstract

This utility model discloses a fluorescent screen replacement device based on a vacuum environment, comprising: a first storage container and a second storage container, wherein the first storage container stores a tightly arranged fluorescent screen; a guide channel is provided between the first and second storage containers, and a pushing component is provided along the path of the guide channel; a target position is provided on the guide channel, and the fluorescent screen in the first storage container slides to the guide channel, is hit at the target position, and is then pushed into the second storage container by the pushing component. The fluorescent screen replacement device provided by this utility model has a compact structure. By tightly arranging the fluorescent screens in the first storage container, the total number of samplings that can be performed in a single vacuum pumping process is determined by the number of fluorescent screens in the first storage container. The fluorescent screens can be repeatedly replaced during operation, greatly increasing the number of samplings that can be performed in a single vacuum pumping process.

Description

Technical Field

[0001] This utility model relates to the field of fluorescent screen technology, and in particular to a fluorescent screen replacement device based on a vacuum environment. Background Technology

[0002] In cutting-edge fields of physics, such as laser particle acceleration research, acceleration experiments are typically conducted within highly controlled vacuum chambers. These experiments aim to explore the fundamental laws and trends of particle acceleration, and to study these processes in detail, researchers usually need to incorporate fluorescent screens in the vacuum environment for crucial blocking measurements. The fluorescent screens act as detectors, capturing and displaying the distribution of the particle beam, allowing researchers to visually observe various phenomena during the acceleration process.

[0003] However, because the fluorescent screen gradually wears out or is damaged during this process, its consumable nature limits the number of measurements that can be performed within a single vacuum cycle. Each screen replacement requires interrupting the experiment for vacuum evacuation, which is not only time-consuming but also affects experimental efficiency. To minimize such interruptions, previous experiments often used cylindrical structures to house the fluorescent screen, allowing for rapid replacement without disrupting the vacuum environment. However, this method still offers a relatively limited number of repeatable measurements and has low space utilization. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a vacuum-based screen replacement device that can increase the number of repeatable measurements of the screen and improve space utilization.

[0005] A screen replacement device based on a vacuum environment, the device comprising: a first storage container and a second storage container, the first storage container storing closely arranged screens; a guide channel between the first storage container and the second storage container, a pushing component disposed along the path of the guide channel; a firing position disposed on the guide channel, the screens in the first storage container sliding to the guide channel, firing at the firing position, and then being pushed into the second storage container by the pushing component.

[0006] Furthermore, the bottom of the first storage container is a slope, and a fluorescent screen outlet is provided at one end of the slope at the lowest point; the upper end of the second storage container is open, and a fluorescent screen inlet is provided at the opening.

[0007] Furthermore, a pressure-applying component is also provided inside the first storage container, and the pressure-applying component is located at one end of the high point of the inclined plane; and the bottom surface of the pressure-applying component is in contact with the bottom of the first storage container, and the side surface is in contact with the end screen.

[0008] Furthermore, the first storage container is positioned diagonally above the second storage container, with the fluorescent screen outlet of the first storage container facing the top of the guide channel, and the fluorescent screen inlet of the second storage container facing the left side of the guide channel.

[0009] Furthermore, the guide channel includes a channel inlet, a channel outlet, and a propulsion port; the channel inlet is opposite to the fluorescent screen outlet; the channel outlet is opposite to the fluorescent screen inlet; and the propulsion port is opposite to the pushing component.

[0010] On the other hand, the first storage container and the second storage container are arranged side by side, and the fluorescent screen outlet and the fluorescent screen inlet are opposite to each other; the pushing component pushes the fluorescent screen out of the fluorescent screen outlet of the first storage container, slides it to the shooting position, and after the shooting is completed, it is pushed into the second storage container by the pushing component.

[0011] Furthermore, the guide channel includes a channel inlet and a channel outlet; the channel inlet is opposite to the exit position of the fluorescent screen on the first storage container; the channel outlet is opposite to the inlet position of the fluorescent screen on the second storage container.

[0012] Furthermore, the pushing component includes a push rod and a driving assembly; one end of the push rod is connected to the driving assembly, and the other end is placed on the sliding path of the fluorescent screen.

[0013] Furthermore, there are two or more push rods; the two or more push rods are spaced apart.

[0014] On the other hand, the push rod is replaced with a push plate; one end of the push plate is connected to the drive assembly, and the other end is placed on the sliding path of the fluorescent screen of the second storage container.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] 1. By closely arranging fluorescent screens in the first storage container, the total number of samplings that can be performed during a single vacuum pumping process is determined by the number of fluorescent screens in the first storage container. The fluorescent screens can be repeatedly replaced during operation, which greatly increases the number of samplings that can be performed during a single vacuum pumping process.

[0017] 2. The fluorescent screen replacement device provided by this utility model has a compact structure, high space utilization, and low cost, and has high application prospects. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the fluorescent screen replacement device based on a vacuum environment provided in Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the first storage container provided in Embodiment 1 of the present invention, wherein... Figure 2 (a) is a top-view axonometric drawing. Figure 2 (b) is a bottom-view axonometric drawing;

[0021] Figure 3 This is a schematic diagram of the structure of the second storage container provided in Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the guide channel structure provided in Embodiment 1 of this utility model;

[0023] Figure 5 This is a schematic diagram of the pressure-applying component structure provided in Embodiment 1 of this utility model;

[0024] Figure 6 A schematic diagram of the structure of the fluorescent screen replacement device based on a vacuum environment provided in Embodiment 2 of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the first storage container in Embodiment 2 of this utility model;

[0026] Figure 8 This is a schematic diagram of the guide channel structure provided in Embodiment 2 of this utility model.

[0027] Reference numerals: Base 10, Fluorescent screen 11, First storage container 2, Fluorescent screen outlet 21, Second storage container 3, Fluorescent screen inlet 31, Limiting plate 32, Limiting rod 33, Guide channel 4, Channel inlet 41, Channel outlet 42, Propulsion port 43, Target firing position 44, Pushing component 5, Push rod 51, Push plate 52, Drive assembly 53, Pressure application component 6.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] Example 1

[0035] See Figures 1 to 5This invention provides a first type of fluorescent screen replacement device based on a vacuum environment, comprising a base 10, on which a first storage container 2 and a second storage container 3 are disposed. The first storage container 2 stores closely arranged fluorescent screens 11. A guide channel 4 is provided between the first storage container 2 and the second storage container 3, and a pushing component 5 is disposed along the path of the guide channel 4. A target position 44 is provided on the guide channel 4. The fluorescent screens 11 in the first storage container 2 slide to the guide channel 4 and are targeted at the target position 44. After being targeted, the fluorescent screens 11 are pushed into the second storage container 3 by the pushing component 5. With this structural configuration, the total number of samplings that can be performed in a single vacuum pumping process is determined by the number of fluorescent screens stored in the first storage container 2, greatly increasing the number of samplings that can be performed in a single vacuum pumping process. By adding the guide channel 4 and cooperating with the pushing component 5, it is ensured that the fluorescent screens 11 can slide sequentially from the first storage container 2 into the second storage container 3, enabling continuous multiple sampling of fluorescence signals in the vacuum without disrupting the vacuum environment.

[0036] Specifically, the base 10 is a plate-like structure, and its shape is designed according to the arrangement of the first storage container 2, the second storage container 3, and the guide channel 4, so as to stably place the first storage container 2, the second storage container 3, and the guide channel 4. Furthermore, stabilizing structures, such as mounting grooves and clips, can be provided on the base 10 to achieve further fixation and stability.

[0037] Both the first storage container 2 and the second storage container 3 are rectangular cavity structures. The first storage container 2 is a rectangular structure with a longer horizontal dimension, and the cross-sectional size of its cavity is adapted to the height and width of the fluorescent screen 11. The bottom of the first storage container 2 is set as a slope, and a fluorescent screen outlet 21 is set at one end of the slope at the lowest point. The fluorescent screen outlet 21 contacts the top surface of the guide channel 4, and its position corresponds to the position of the channel inlet 41 of the guide channel. With this setting, the fluorescent screen can automatically slide to the lowest point of the slope in the storage container during the shooting process, slide out from the fluorescent screen outlet 21, and slide from the channel inlet 41 to the shooting position 44 to complete the shooting. Furthermore, a pressure applying member 6 is also set in the first storage container 2. The pressure applying member 6 is located at one end of the slope at the highest point, and its bottom surface is also set as a slope, and the slope of the slope is adapted to the bottom of the first storage container 2, so that it can better contact the bottom of the first storage container 2. The front side contacts the fluorescent screen 11 arranged at the end, and the left and right sides are gap-fitted with the sides of the inner cavity of the first storage container 2. When the target shooting operation is carried out, the fluorescent screen 11 can smoothly slide from the high point to the low point under the combined action of the inclined surface and the pressure member 4, and smoothly slide out from the fluorescent screen outlet 21.

[0038] It is understood that the first storage container 2 can be an open structure at the top or a closed structure with a movable cover, so as to facilitate the subsequent addition of the fluorescent screen 11. When it is a closed structure, one side can be designed as a transparent plate to facilitate observation of the use of the fluorescent screen 11 at any time.

[0039] The second storage container 3 is a long rectangular structure with an open top and closed sides. At the open end, near the guide channel, a limiting plate 32 and a limiting rod 33 are provided. The fluorescent screen inlet 31 is located between the limiting plate 32 and the limiting rod 33, and the fluorescent screen inlet 31 is in contact with the left side of the guide channel 4, and its position corresponds to the position of the channel outlet 42 of the guide channel.

[0040] The width W of the second storage container 3 is greater than or equal to the diagonal length of the fluorescent screen 11, the length L is adapted to the height of the fluorescent screen 11, and the height H is greater than or equal to the lateral length of the first storage container 2. Since the fluorescent screen inlet 31 is located on the side wall of the opening end of the second storage container 3, it has a relatively small support point. When the fluorescent screen 11, after being hit, passes through the channel outlet 42 and enters the fluorescent screen inlet 31, its center of gravity begins to shift towards the second storage container 3 during movement. Under the action of gravity, the fluorescent screen 11 flips until its edge detaches from the lower support point and falls flat into the bottom of the second storage container 3, reserving space for subsequent fluorescent screens 11 to fall, thus achieving continuous hitting. It is worth noting that this embodiment is in a special vacuum environment; therefore, without air resistance, the flipping angle of the fluorescent screen 11 is fixed, thus enabling stable flipping and flat falling.

[0041] The guide channel 4 is a rectangular frame structure with a hollow target position 44 in the middle. The top is provided with a channel inlet 41 corresponding to the fluorescent screen outlet 21, the left side is provided with a channel outlet 42 corresponding to the fluorescent screen inlet 31, and the right side of the guide channel 4 is provided with a propulsion port 43 corresponding to the pushing component 5.

[0042] The pushing component 5 includes a push rod 51 and a driving assembly 53. One end of the push rod 51 is fixedly connected to the driving assembly 53, and the other end is placed on the sliding path of the fluorescent screen 11. The push rod 51 is a rod-shaped structure and can be set as one or more. When set as one, it is placed in the middle position. When set as two or more, the two or more push rods are set at equal intervals to ensure that the fluorescent screen 11 can be subjected to balanced force and can smoothly push the fluorescent screen 11 to slide into the fluorescent screen inlet 31. The driving assembly 53 is a purely mechanical power structure, that is, it provides power to the push rod 51 through the cooperation of mechanical gears, such as a vacuum electric translation stage. The starting assembly 53 is existing technology and will not be described in detail here.

[0043] When assembled, the first storage container 2 is positioned diagonally above the second storage container 3. The fluorescent screen outlet 21 at the bottom of the first storage container 2 corresponds to the channel inlet 41 on the top surface of the guide channel 4, and the fluorescent screen inlet 31 on the right side of the second storage container 3 corresponds to the channel outlet 42 on the left side of the guide channel 4.

[0044] It is worth noting that the height and width of the fluorescent screen outlet 21, fluorescent screen inlet 31, channel inlet 41, channel outlet 42 and push-in port 43 are the same, and their size is only enough to allow one fluorescent screen 11 to pass through, so as to ensure that the fluorescent screens 11 in the first storage container 2 can slide out in sequence.

[0045] During operation, the first storage container 2 contains a number of closely arranged fluorescent screens 11. The fluorescent screens 11 slide out from the fluorescent screen outlet 21 of the first storage container 2 and are guided by the guide channel 4 to ensure that the fluorescent screens 11 are in the target position 44. After the target is hit, the thrust of the drive component 53 acts on the push rod 51, and the push rod 51 moves to the left and abuts against the fluorescent screen 11 after the target is hit, giving the fluorescent screen 11 a pushing force so that it passes through the fluorescent screen inlet 31. As the fluorescent screen 11 moves, the center of gravity changes and it flips under the action of gravity until the edge detaches from the support point below and falls into the bottom of the second storage container 3 in a flat manner, reserving space for the subsequent fluorescent screens 11 to fall in, thereby realizing continuous target hitting. After the fluorescent screen 11 is fired, it slides into the second storage container 3. The drive component 53 applies a pulling force to the push rod 51, causing the push rod 51 to move to the right until it exits the guide channel 4. Under the combined action of the pressure component 6 and the inclined plane, the fluorescent screen 11 in the first storage container 2 slides from the high point to the low point of the fluorescent screen outlet 21, and then slides out again from the fluorescent screen outlet 21. This reciprocating motion is used to complete the continuous multiple sampling of the fluorescent signal in the vacuum.

[0046] It is understood that the device provided by this utility model, in addition to increasing the number of samplings that can be performed during a single vacuum pumping process by repeatedly replacing the fluorescent screen, also addresses the issue that conventional rubber products and lubricating greases will slowly vaporize in a vacuum environment, thereby disrupting the vacuum environment. This severely limits common control methods in vacuum environments. The first storage container 2, the second storage container 3, the guide channel 4, and the pushing component 5 of this utility model are all purely mechanical structures, eliminating the need for rubber products and / or lubricating greases, thus reducing interference with the vacuum environment and extending the device's service life. Furthermore, the device of this utility model has a simple structure, low manufacturing cost, low technical difficulty, and can be reused multiple times, possessing significant economic value and application prospects.

[0047] Example 2

[0048] See Figures 6 to 8This is the second type of fluorescent screen replacement device based on a vacuum environment provided by this utility model. Its basic principle is the same as that of Embodiment 1, but its structure is slightly different. Specifically:

[0049] In terms of assembly, the first storage container 2, the guide channel 4, and the second storage container 3 are fixed side-by-side on the base 10, with the first storage container 2 located on one side of the pushing component 5. The screen outlet 21 and the screen inlet 31 are opposite each other and connected through the guide channel 4. The guide channel 4 includes a channel inlet 41 and a channel outlet 42. The first storage container 2 includes two screen outlets 21, wherein the channel inlet 41 corresponds to the screen outlet 21 on the left side of the first storage container 2, and the channel outlet 2 corresponds to the screen inlet 31 above the second storage container 3. The screen outlet 21 on the right side of the first storage container 2 is located on the moving path of the pushing component 5.

[0050] The pushing component 5 includes a push plate 52 and a driving assembly 53. The push plate 52 is a plate-shaped structure with a certain thickness. Its height and thickness are adapted to the size of the fluorescent screen outlet 21 on the right side of the first storage container 2. One end of the push plate 52 is fixedly connected to the driving assembly 53, and the other end is placed on the sliding path of the fluorescent screen 11. The plate-shaped structure design of the push plate 52 can better ensure that the fluorescent screen 11 is subjected to uniform force when a pushing force is applied.

[0051] During operation, the first storage container 2 contains a number of closely arranged fluorescent screens 11. The drive component 53 applies a pushing force to the push plate 52, which moves to the left and enters from the fluorescent screen outlet 21 on the right side of the first storage container 2. This pushes the fluorescent screen 11 located at the low point of the slope to slide out from the fluorescent screen outlet 21 on the left side. After the screen slides to the target position 44 of the guide channel 4 and completes the target shooting, the drive component 53 applies a pushing force to the push plate 52 again, which continues to move to the left, pushing the fluorescent screen 11 after the target shooting to the fluorescent screen inlet 31. As the fluorescent screen 11 moves, its center of gravity changes, and it flips under the action of gravity until its edge detaches from the support point below and falls into the bottom of the second storage container 3 in a flat manner, reserving space for the subsequent fluorescent screens 11 to fall in, thereby achieving continuous target shooting. Then, the drive component 53 applies a pulling force, causing the pusher plate 52 to move to the right until it exits the fluorescent screen outlet 21 on the right side of the first storage container 2. Under the action of the inclined plane, the fluorescent screen 11 in the first storage container 2 slides from the high point to the low point of the fluorescent screen outlet 21, and is then pushed by the pusher plate 52 to the target position 44 to complete the target hitting. This reciprocating motion is used to complete the continuous multiple sampling of the fluorescent signal in the vacuum.

[0052] It is understood that the push rod 51 and push plate 52 in Embodiment 1 and Embodiment 2 can be replaced with each other as appropriate, and are not limited to the arrangement shown in the figures of the two embodiments.

[0053] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A fluorescent screen replacement device based on a vacuum environment, characterized in that, The device includes: a first storage container and a second storage container, wherein the first storage container stores closely arranged fluorescent screens; A guide channel is provided between the first storage container and the second storage container, and a pushing component is provided along the path of the guide channel; The guide channel is provided with a target firing position. The fluorescent screen in the first storage container slides to the guide channel, and after firing at the target firing position, it is pushed into the second storage container by a pushing component.

2. The fluorescent screen replacement device based on a vacuum environment according to claim 1, characterized in that, The bottom of the first storage container is a slope, and a fluorescent screen outlet is provided at one end of the slope at the lowest point. The second storage container has an opening at the top, and a fluorescent screen inlet is provided at the opening.

3. The fluorescent screen replacement device based on a vacuum environment according to claim 2, characterized in that, The first storage container is also provided with a pressure-applying component, which is located at one end of the slope at its highest point; Furthermore, the bottom surface of the pressure-applying component contacts the bottom of the first storage container, and the side surface contacts the end fluorescent screen.

4. The fluorescent screen replacement device based on a vacuum environment according to claim 2 or 3, characterized in that, The first storage container is positioned diagonally above the second storage container, with the fluorescent screen outlet of the first storage container facing the top of the guide channel, and the fluorescent screen inlet of the second storage container facing the left side of the guide channel.

5. The fluorescent screen replacement device based on a vacuum environment according to claim 4, characterized in that, The guide channel includes a channel entrance, a channel exit, and an inlet; The channel inlet is opposite to the fluorescent screen outlet; the channel outlet is opposite to the fluorescent screen inlet; the propulsion port is opposite to the propulsion component.

6. The fluorescent screen replacement device based on a vacuum environment according to claim 3, characterized in that, The first storage container and the second storage container are arranged side by side, and the fluorescent screen outlet and the fluorescent screen inlet are opposite to each other; The pushing component pushes the fluorescent screen out of the fluorescent screen outlet of the first storage container, slides it to the target firing position, and after the target firing is completed, pushes it into the second storage container by the pushing component.

7. The fluorescent screen replacement device based on a vacuum environment according to claim 6, characterized in that, The guidance channel includes a channel entrance and a channel exit; The channel inlet is opposite to the fluorescent screen outlet on the first storage container; the channel outlet is opposite to the fluorescent screen inlet on the second storage container.

8. The fluorescent screen replacement device based on a vacuum environment according to claim 1, characterized in that, The pushing component includes a push rod and a drive assembly; One end of the push rod is connected to the drive assembly, and the other end is placed on the sliding path of the fluorescent screen.

9. The fluorescent screen replacement device based on a vacuum environment according to claim 8, characterized in that, There are two or more push rods; the two or more push rods are spaced apart.

10. The fluorescent screen replacement device based on a vacuum environment according to claim 8, characterized in that, Replace the push rod with a push plate; One end of the push plate is connected to the drive assembly, and the other end is placed on the sliding path of the fluorescent screen of the second storage container.

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