Attenuation slice quick-release support suitable for hard X-ray energy attenuation

Abstract

The invention provides an attenuation slice quickly-detachable support suitable for hard X-ray energy attenuation, and relates to the field of hard X-ray free electron lasers. The attenuation slice quickly-detachable support suitable for hard X-ray energy attenuation comprises a base frame and a plurality of quick locking devices, attenuation slice containing grooves are formed in the front face and the back face of the base frame, light through holes are formed in the centers of the attenuation slice containing grooves, superposition use of attenuation slices can be achieved, and the attenuation magnitude is remarkably improved; the rapid locker comprises a shell detachably connected with the base frame, a rotary shaft which penetrates through the top of the shell and can rotate is arranged in the shell, a rotary knob is arranged at the top of the rotary shaft, a tongue depressor used for abutting against the attenuation piece is arranged at the bottom of the rotary shaft, a spring is arranged on the rotary shaft in a surrounding mode, a slope and a tongue pressing groove are arranged on the shell, and the spring can be compressed by lifting and rotating the rotary knob. The tongue depressor slides into the tongue pressing groove along the slope or slides to the surface of the attenuation piece, so that the function of quickly disassembling and assembling the attenuation piece is achieved, the device can be suitable for attenuation pieces of different shapes, different types and different thicknesses, and experiment interruption caused by attenuation piece replacement is reduced; the cooling pipeline is directly formed in the base frame and located below the attenuation piece, the heat dissipation efficiency is high, and the problem of heat accumulation of the energy attenuation piece in the hard X-ray free electron laser is solved; therefore, the productivity of a laboratory is improved, the risk of equipment and operators is reduced, and the safety of the whole system is enhanced.

Description

Technical Field

[0001] The invention relates to the field of hard X-ray free electron laser, in particular to an attenuation sheet quick-detachable bracket suitable for hard X-ray energy attenuation. Background Art

[0002] Hard X-ray free electron lasers have the characteristics of extremely high brightness, ultrashort pulses, complete coherence, adjustable wavelength and extremely high energy, which brings unprecedented research opportunities to various cutting-edge research fields such as high-energy physics, chemistry, biology, etc. Since different experiments have different requirements for hard X-ray energy, the detectors and samples may be overloaded or damaged when exposed to X-rays of too high intensity, and the energy of hard X-rays emitted by accelerators is fixed, it is particularly important to effectively control the intensity and energy of X-rays through energy attenuation.

[0003] However, there are some significant limitations in the prior art, which restrict its efficiency and flexibility in different applications. For example, the technical solution with the existing patent application number CN117091030A is only applicable to circular attenuation plates, and the attenuation plates are not easy to remove during disassembly, and special tools are required for both disassembly and assembly. In actual engineering, rectangular attenuation plates are the majority, and each attenuation plate usually needs to be fixed with multiple screws to tighten the plate. The daily maintenance and replacement process is cumbersome, the downtime is long, the operator is exposed to the high-energy X-ray environment for a long time, and the safety hazards caused by operational errors are increased. In addition, the patent solution only has an attenuation plate on one side. If a wider attenuation range is required, multiple brackets need to be stacked and used, which increases the manufacturing cost and the space occupied by the equipment, and it is difficult to meet the diverse experimental needs.

[0004] Another significant technical defect is in the design of the cooling system. The thickness of an attenuation sheet generally ranges from a few microns to a few millimeters, and the heat load it needs to withstand is sometimes as high as several hundred watts. How to solve the high heat problem of the attenuation sheet in the project is the key. The patent application adopts a side cooling design. The cooling water pipe is far away from the cooled attenuation sheet and the heat conduction path is long. However, in actual engineering, the heat is concentrated at the spot position, that is, at the center of the attenuation sheet. The side cooling design will make it difficult to dissipate heat quickly and effectively, which not only affects the service life of the attenuation sheet, but also increases the risk of equipment failure and sample damage in high-intensity and long-term experiments. In addition, it occupies more installation space on the side of the bracket, and the removal and maintenance of the water pipe are more difficult. It is necessary to consider the durability of the cooling water pipe, the connection strength, and the need to ensure good thermal contact between the water pipe and the base frame.

[0005] Therefore, how to quickly and reliably disassemble and assemble attenuation plates of various specifications, flexibly adjust the hard X-ray energy attenuation range, and improve the efficiency of the X-ray attenuation plate bracket cooling system has become a technical problem that needs to be urgently solved by technicians in this field. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a quick-detachable bracket for attenuation sheets suitable for hard X-ray energy attenuation, which can realize the function of quick disassembly and assembly of attenuation sheets by locking or releasing a quick lock, and can be suitable for attenuation sheets of different shapes, types and thicknesses, reducing experimental interruptions caused by replacing attenuation sheets, thereby improving laboratory productivity, reducing risks to equipment and operators, and enhancing the safety of the entire system.

[0007] The present invention provides a quick-detachable bracket for attenuation sheets for hard X-ray energy attenuation, comprising a base frame, a plurality of attenuation sheet placement grooves are sequentially arranged on both the front and back surfaces of the base frame along the extension direction of the base frame, light holes are arranged between the attenuation sheet placement grooves at corresponding positions on the front and back surfaces of the base frame, and the light holes are located inside the base frame; both sides of each attenuation sheet placement groove are provided with mounting grooves connected thereto, and quick lockers are arranged in the mounting grooves.

[0008] In a feasible embodiment, the quick lock includes a shell that is detachably connected to the mounting groove, and the shell is also provided with a rotating shaft that passes through the top of the shell and is rotatable, and a spring is arranged around the rotating shaft; the bottom of the rotating shaft is also provided with a tongue depressor for resisting the attenuation plate, and the shell is provided with a shell slot with a notch facing downward and a tongue depressing groove that is connected to the shell slot and has a notch facing the shell slot.

[0009] In a feasible implementation manner, a slope is further provided on the shell, and the highest point of the slope is located at the notch of the tongue depressing groove.

[0010] In a feasible implementation manner, a knob is further provided on the top of the rotating shaft.

[0011] In a feasible embodiment, a lower cooling system is also provided inside the base frame, and the lower cooling system includes a first cooling channel, a transfer cooling channel and a second cooling channel which are connected in sequence; the extension direction of the first cooling channel and the second cooling channel are consistent with the base frame and are respectively located on both sides of the light-through hole, one end of the first cooling channel and one end of the second cooling channel are connected to the outside of the base frame, and the transfer cooling channel is located above the light-through hole closest to the top of the base frame.

[0012] In a feasible embodiment, a development cooling channel is also provided inside the base frame, one end of the development cooling channel is connected to the transfer cooling channel, and the other end is connected to the outside of the base frame, and a filler for blocking the development cooling channel is provided in the development cooling channel; cooling water pipes are provided at the ends of the first cooling channel and the second cooling channel, and part of the cooling water pipes is located outside the base frame.

[0013] In a feasible implementation manner, the tongue depressor is made of flexible oxygen-free copper.

[0014] In a feasible implementation manner, the knob is made of Teflon.

[0015] In a feasible implementation manner, the attenuation sheet placement groove is circular or rectangular in shape.

[0016] The present invention also provides a method for using a quick-detachable attenuation plate bracket suitable for hard X-ray energy attenuation, which comprises at least the following steps:

[0017] 1) Place and secure the quick-release fastener in the mounting slot;

[0018] 2) Pull up the knob and rotate it, the tongue depressor rotates synchronously in the slot of the housing and slides into the tongue depressor slot along the slope;

[0019] 3) Place the attenuation sheet in the attenuation sheet placement slot;

[0020] 4) Rotate the knob, the tongue depressor slides out of the tongue depressor groove along the slope and enters the slot of the housing, and the tension released by the spring on the rotating shaft holds the tongue depressor against the attenuation plate.

[0021] The attenuation sheet quick-detachable bracket for hard X-ray energy attenuation provided by the present invention has the following beneficial effects:

[0022] 1) The present invention improves the attenuation energy level by superimposing attenuation sheets. Different combinations of attenuation sheets can achieve a wider attenuation range, meet different experimental conditions and requirements, and reduce costs and usage space. When in use, the bracket can be directly moved and the attenuation sheet placement slot corresponding to the attenuation energy level can be aligned with the optical path of the hard X-ray according to the energy level to be attenuated, and the attenuation energy level can be adjusted without disassembly.

[0023] 2) The present invention realizes the function of quick disassembly and assembly of attenuation sheets by locking or releasing the quick lock, and can be applied to attenuation sheets of different shapes, types and thicknesses, reducing experimental interruptions caused by replacement of attenuation sheets, thereby improving laboratory productivity, reducing risks to equipment and operators, and enhancing the safety of the entire system.

[0024] 3) The cooling system of the present invention adopts a bottom cooling flow channel design, which can solve the high heat load problem of the attenuation plate and greatly shorten the heat dissipation path. It has a compact structure while efficiently dissipating heat to prevent excessive heat accumulation, and minimizes the number of parts in the cooling system, which not only saves costs and installation space, but also is more conducive to later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the overall structure of the base frame in the present invention.

[0027] Figure 3 It is a cross-sectional view along the AA direction in the present invention.

[0028] Figure 4 It is an enlarged view of point B in the present invention.

[0029] Figure 5 It is a schematic diagram of the overall structure of the quick lock in the present invention.

[0030] Figure 6 It is a half-section view of the quick lock of the present invention.

[0031] Figure 7 It is a cross-sectional view of the base frame in the present invention.

[0032] Figure 8 It is a schematic diagram of the structure when the attenuation sheet in the present invention is not installed.

[0033] Reference numerals

[0034] Base frame 1

[0035] Quick lock 2

[0036] Housing 21

[0037] Shaft 22

[0038] Spring 23

[0039] Tongue depressor 24

[0040] Shell slot 25

[0041] Tongue Depressor 25.1

[0042] Slope 26

[0043] Knob 27

[0044] Attenuation sheet placement slot 3

[0045] Light hole 31

[0046] Mounting slot 4

[0047] Lower cooling system 5

[0048] The first cooling channel 51

[0049] Transfer cooling channel 52

[0050] Second cooling channel 53

[0051] Develop cooling channel 54

[0052] Solder 55

[0053] Cooling water pipe 56 DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "left side", "right side", "upper side", "lower side", "above", "below" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0057] The embodiment of the present invention provides a quick-detachable bracket for attenuating hard X-ray energy. Figure 1 to Figure 6, including a base frame 1, a plurality of attenuation sheet placement slots 3 are sequentially arranged on both the front and back surfaces of the base frame 1 along the extension direction of the base frame 1, and light holes 31 are arranged between the attenuation sheet placement slots 3 at corresponding positions on both the front and back surfaces of the base frame 1, and the light holes 31 are located inside the base frame 1; both sides of each attenuation sheet placement slot 3 are arranged with mounting slots 4 connected thereto, and a quick locker 2 is arranged in the mounting slot 4. For illustration, the attenuation sheet placement slots 3 on the front side of the base frame 1 and the attenuation sheet placement slots 3 on the back side of the base frame 1 are used together, and the so-called front side of the base frame 1 and the back side of the base frame 1 are only defined for convenience in description, and in fact, there is no distinction between the front and back sides of the base frame 1. Attenuation sheets of different types, shapes and thicknesses can be placed in the multiple attenuation sheet placement slots 3, for example: a square diamond window with a thickness of 3.5 μm and a 0.5 mm thick silicon substrate, a square diamond window with a thickness of 5.5 μm and a 0.5 mm thick silicon substrate, a square diamond window with a thickness of 7.5 μm and a 0.5 mm thick silicon substrate, a circular accordion sheet with a thickness of 0.2 mm, a circular accordion sheet with a thickness of 2 mm, etc. The attenuation sheet for hard X-ray energy attenuation provided by the present invention can be quickly disassembled. The attenuation energy level is improved by the superposition of attenuation sheets. Different attenuation sheet combinations can achieve a wider attenuation range to meet different experimental conditions and requirements, while reducing costs and usage space. When in use, the base frame 1 can be directly moved and the light hole 31 of the corresponding attenuation sheet combination can be aligned with the optical path of the hard X-ray according to the energy level to be attenuated, and the attenuation energy level can be adjusted without disassembly.

[0058] In the attenuation sheet quick-detachable bracket for hard X-ray energy attenuation provided in the embodiment of the present invention, refer to Figure 5 and Figure 6The quick lock 2 includes a shell 21 detachably connected to the mounting slot 4, and the shell 21 is also provided with a rotating shaft 22 passing through the top of the shell 21 and being rotatable, and a spring 23 is arranged around the rotating shaft 22. Generally speaking, a chassis is arranged at the bottom of the rotating shaft 22, and the bottom of the spring 23 abuts against the chassis, and the top of the spring 23 abuts against the inner side surface of the top of the shell 21; the bottom of the rotating shaft 22 is also provided with a tongue depressor 24 for abutting against the attenuation sheet, and generally speaking, the tongue depressor 24 is located at the bottom of the chassis of the rotating shaft 22; the shell 21 The housing 21 is provided with a housing slot 25 with a notch facing downward and a tongue depressing groove 25.1 which is connected to the housing slot 25 and has a notch facing the housing slot 25. The tongue depressing groove 25.1 usually has a certain depth, which can completely accommodate the tongue depressor 24 and can ensure that when the tongue depressor 24 rotates into the tongue depressing groove 25.1, the bottom surface of the tongue depressing groove 25.1 can support the tongue depressor 24, and at this time, the tension of the spring 23 can press the tongue depressor 24 on the bottom surface of the tongue depressing groove 25.1, so that the tongue depressor 24 cannot move without external interference. In a specific embodiment, the housing 21 is also provided with a ramp 26, and the highest point of the ramp 26 is located at the notch of the tongue depressing groove 25.1. In another specific embodiment, the top of the rotating shaft 22 is also provided with a knob 27.

[0059] When the attenuation sheet quick-detachable bracket for hard X-ray energy attenuation provided by the embodiment of the present invention is used, it is necessary to first tighten the quick locker 2, and the assembly steps of the quick locker 2 are: first fix the tongue depressor 24 on the rotating shaft 22 with an M2 countersunk screw, insert the spring 23 into the rotating shaft 22, press the bottom surface of the spring 23 on the bottom plate of the rotating shaft 22, and then insert it into the housing 21, and finally connect the knob 27 to the rotating shaft 22 through an M2.5 combination screw. The spring 23 is wound with a steel wire with a diameter of 0.8 mm, and a compression amount is reserved. When the tongue depressor 24 is flush with the bottom surface of the housing 21, the spring 23 is in a compressed state. The assembled quick lock 2 is locked in the mounting groove 4 by means of screws, and the knob 27 is lifted and turned, so that the tongue depressor 24 moves in the housing slot 25 toward the tongue depressor groove 25.1, and can slide into the tongue depressor groove 25.1 along the slope 26, at which time the spring 23 is in a compressed state; when the tongue depressor 24 enters the tongue depressor groove 25.1, the tension of the spring 23 is released, and the tongue depressor 24 is fixed to the bottom surface of the tongue depressor groove 25.1 by the tension of the spring 23, and at this time the bracket of the present invention is in a state of being compressed; Figure 8state, the attenuation sheet can be placed according to the engineering requirements. The ramp 26 can make the rotation of the tongue depressor 24 smoother. After placing the attenuation sheet in the attenuation sheet installation slot 4, it is only necessary to turn the knob 27 so that the tongue depressor 24 is pressed down along the ramp 26 and slides over the attenuation sheet. At this time, the tension released by the compression of the spring 23 is passed through the tongue depressor 24 to press the attenuation sheets of different thicknesses flatly and firmly in the placement slot 3. Through the above-mentioned arrangement, the present invention can realize the function of quickly disassembling and assembling the attenuation sheet by locking or releasing the quick lock 2, and can be suitable for attenuation sheets of different shapes, types and thicknesses, reducing experimental interruptions caused by replacing attenuation sheets, thereby improving the productivity of the laboratory, reducing the risks of equipment and operators, and enhancing the safety of the entire system. The materials of the shell 21 and the rotating shaft 22 are both aluminum, and the tongue depressor 24 is made of flexible oxygen-free copper material, which can conduct heat well, while also ensuring that the attenuation sheet is not damaged by hard materials. In order to isolate the heat generated by the attenuation plate during operation, enhance the operating feel and accuracy, and ensure the safety of use in an ultra-high vacuum environment, the knob 23 is made of Teflon material.

[0060] In the attenuation sheet quick-detachable bracket for hard X-ray energy attenuation provided in the embodiment of the present invention, refer to Figure 7 A lower cooling system 5 is also provided inside the base frame 1, and the lower cooling system 5 includes a first cooling channel 51, a transfer cooling channel 52 and a second cooling channel 53 which are connected and communicated in sequence; the extension direction of the first cooling channel 51 and the second cooling channel 53 are consistent with the base frame 1 and are respectively located on both sides of the light-through hole 31, one end of the first cooling channel 51 and one end of the second cooling channel 53 are connected to the outside of the base frame 1, and the transfer cooling channel 52 is located above the light-through hole 31 closest to the top of the base frame 1. As an illustration, all the light holes 31 are surrounded by the first cooling channel 51, the transfer cooling channel 52 and the second cooling channel 53. The first cooling channel 51 and the second cooling channel 53 directly pass through the attenuation plate placement groove 3 on the front side of the base frame 1 and the attenuation plate placement groove 3 on the back side of the base frame 1, as close to the light hole 31 as possible. This bottom cooling channel design directly opens holes inside the base frame 1 to form the channel. It has high heat dissipation efficiency and compact structure. It can minimize the number of parts of the cooling system, save costs and installation space, and is also conducive to later maintenance.

[0061] In the attenuation sheet quick-detachable bracket for hard X-ray energy attenuation provided in the embodiment of the present invention, refer to Figure 7A development cooling channel 54 is also provided inside the base frame 1, one end of the development cooling channel 54 is connected to the transfer cooling channel 52, and the other end is connected to the outside of the base frame 1; a filler 55 is provided in the development cooling channel 54; cooling water pipes 56 are provided at the ends of the first cooling channel 51 and the second cooling channel 53, and part of the cooling water pipe 56 is located outside the base frame 1, and the so-called end is the end connected to the external space of the base frame 1. The manufacturing process of the lower cooling system 5 is as follows: a deep hole is opened upward from the bottom of the base frame 1 to form the first cooling channel 51 and the second cooling channel 53, and a hole is opened from the side of the base frame 1 to form a development cooling channel 54 and a transfer cooling channel 52, until the transfer cooling channel 52 is connected with the first cooling channel 51 and the second cooling channel 53, and the hole diameter is 6mm, and then the development cooling channel 54 is filled with solder 55 to close the development cooling channel 54, and the cooling water pipe 56 is welded to the ends of the first cooling channel 51 and the second cooling channel 53 for the introduction and outflow of external cooling water. For details, see Figure 7 .

[0062] The present invention is applicable to the use of a quick-detachable attenuation sheet bracket for hard X-ray energy attenuation, and the method comprises at least the following steps:

[0063] 1) Place and fix the quick lock 2 in the mounting groove 4;

[0064] 2) Pull up the knob 27 and then rotate it, so that the tongue depressor 24 rotates synchronously in the housing slot 25 and slides into the tongue depressor slot 25.1 along the ramp 26;

[0065] 3) placing the attenuation sheet in the attenuation sheet placement slot 3;

[0066] 4) Rotate the knob 27, the tongue depressor 24 slides out of the tongue depressor groove 25.1 along the slope 26 and enters the housing slot 25, and the tension released by the spring 23 on the rotating shaft 22 holds the tongue depressor 24 against the attenuation plate.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A quick-detachable bracket for attenuation sheet for hard X-ray energy attenuation, characterized in that: The invention comprises a base frame (1), wherein a plurality of attenuation sheet placement grooves (3) are sequentially arranged on both the front and back surfaces of the base frame (1) along the extension direction of the base frame (1), and light-through holes (31) are arranged between the attenuation sheet placement grooves (3) at corresponding positions on the front and back surfaces of the base frame (1), and the light-through holes (31) are located inside the base frame (1); and each attenuation sheet placement groove (3) is provided with a connecting mounting groove (4) on both sides thereof, and a quick locker (2) is arranged in the mounting groove (4).

2. The attenuation sheet quick-detachable bracket for attenuating hard X-ray energy according to claim 1, characterized in that: The quick lock (2) comprises a shell (21) detachably connected to the mounting groove (4); the shell (21) is also provided with a rotating shaft (22) passing through the top of the shell (21) and being rotatable; a spring (23) is arranged around the rotating shaft (22); a tongue depressor (24) for resisting the attenuation plate is also arranged at the bottom of the rotating shaft (22); the shell (21) is provided with a shell slot (25) with a notch facing downward and a tongue depressor groove (25.1) communicating with the shell slot (25) and with a notch facing the shell slot (25); the tongue depressor (24) is slidably connected to the tongue depressor groove (25.1).

3. The attenuation sheet quick-detachable bracket for attenuating hard X-ray energy according to claim 2, characterized in that: The housing (21) is also provided with a slope (26), and the highest point of the slope (26) is located at the notch of the tongue-pressing groove (25.1).

4. The attenuation sheet quick-detachable bracket for attenuating hard X-ray energy according to claim 3, characterized in that: A knob (27) is also provided on the top of the rotating shaft (22).

5. The attenuation sheet quick-detachable bracket for attenuating hard X-ray energy according to any one of claims 1 to 4, characterized in that: A lower cooling system (5) is also provided inside the base frame (1), and the lower cooling system (5) comprises a first cooling channel (51), a transfer cooling channel (52) and a second cooling channel (53) which are connected in sequence; the extension direction of the first cooling channel (51) and the second cooling channel (53) are consistent with the base frame (1) and are respectively located on both sides of the light-through hole (31); one end of the first cooling channel (51) and one end of the second cooling channel (53) are connected to the outside of the base frame (1); and the transfer cooling channel (52) is located above the light-through hole (31) closest to the top of the base frame (1).

6. The attenuation sheet quick-detachable bracket for attenuating hard X-ray energy according to claim 5, characterized in that: A development cooling channel (54) is also provided inside the base frame (1), one end of the development cooling channel (54) is connected to the transfer cooling channel (52), and the other end is connected to the outside of the base frame (1), and a filler (55) for blocking the development cooling channel (54) is provided in the development cooling channel (54); cooling water pipes (56) are provided at the ends of the first cooling channel (51) and the second cooling channel (53), and part of the cooling water pipes (56) is located outside the base frame (1).

7. The attenuation sheet quick-detachable bracket for attenuating hard X-ray energy according to any one of claims 2 to 4, characterized in that: The material of the tongue depressor (24) is flexible oxygen-free copper.

8. The attenuation sheet quick-detachable bracket for attenuating hard X-ray energy according to claim 4, characterized in that: The material of the knob (27) is Teflon.

9. The attenuation sheet quick-detachable bracket for hard X-ray energy attenuation according to any one of claims 1 to 4, characterized in that: The shape of the attenuation sheet placement groove (3) is circular or rectangular.

10. A method for using the attenuation sheet quick-detachable bracket for hard X-ray energy attenuation as claimed in any one of claims 4 to 9, comprising at least the following steps: 1) Place and fix the quick-locking device (2) in the mounting groove (4); 2) After pulling up the knob (27), the knob (27) is rotated, and the tongue depressor (24) rotates synchronously in the housing slot (25) and slides into the tongue depressor slot (25.1) along the slope (26); 3) placing the attenuation sheet in the attenuation sheet placement slot (3); 4) The knob (27) is rotated, and the tongue depressor (24) slides out of the tongue depressor groove (25.1) along the slope (26) and enters into the housing slot (25), and the tension released by the spring (23) on the rotating shaft (22) holds the tongue depressor (24) against the attenuation plate.

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