Rotary light blocking knife for X-ray polycrystalline diffractometer

Abstract

The utility model relates to a rotary light blocking knife for an X-ray polycrystalline diffractometer. The rotary light blocking knife comprises a seat body, an adjusting device and a knife body, the adjusting device is rotationally connected with the seat body; the cutter body is connected to the adjusting device and can rotate in a vertical plane along with the adjusting device, so that a cutting edge of the cutter body is close to and far away from the sample testing table. During sample replacement, the cutter body only needs to be rotated through the adjusting device, so that the cutting edge is far away from the sample table until enough sample replacement operation space is formed between the cutting edge and the sample table, the sample can be rapidly replaced under the condition that the light blocking plate is not disassembled, and time and labor are saved.

Description

Technical Field

[0001] The present application belongs to the technical field of X-ray polycrystal diffraction, and in particular relates to a rotating light-blocking knife for an X-ray polycrystal diffractometer. Background Art

[0002] The light-blocking knife is used in X-ray polycrystal diffractometers to remove air scattering. It is usually placed vertically above the sample table of the polycrystal X-ray diffractometer, 1-2 mm away from the sample surface.

[0003] The Chinese patent with publication number CN217931466U discloses a light-blocking knife for an X-ray polycrystalline diffractometer, which includes a shielding assembly, a first longitudinal adjustment device, and a fastening device. The shielding assembly is used to remove the air scattering background; the first longitudinal adjustment device is used to adjust the distance between the shielding assembly and the sample. However, this light-blocking knife for an X-ray polycrystalline diffractometer needs to be disassembled each time the sample table is replaced, that is, it needs to be disassembled and reassembled once for each sample test, which is cumbersome to operate. Utility Model Content

[0004] In view of the above analysis, an embodiment of the utility model aims to provide a rotating light-blocking knife for an X-ray polycrystalline diffractometer to solve the above problems existing in the prior art.

[0005] The purpose of the utility model is achieved in this way:

[0006] A rotating light-blocking knife for an X-ray polycrystal diffractometer, comprising:

[0007] seat body;

[0008] An adjusting device, the adjusting device being rotatably connected to the seat body;

[0009] The knife body is connected to the adjusting device and can rotate in a vertical plane along with the adjusting device so that the blade of the knife body is close to and away from the sample platform.

[0010] Furthermore, the seat body includes a fixed seat, an extension shaft, and a limiting plate, the extension shaft is connected to the fixed seat, the limiting plate is connected to the end of the extension shaft, and the adjustment device is sleeved on the extension shaft and is limitedly fitted with the limiting plate.

[0011] Furthermore, it also includes a limit button, which is arranged on the seat body and can be switched between a first position and a second position so that the limit button moves into or out of the rotation path of the adjustment device.

[0012] Furthermore, the limit button is movably connected to a limit slot opened on the fixed seat. When the limit button is in a first position, at least a portion of the limit button is located on one side of the adjusting device and on the rotation path of the adjusting device. When the limit button is in a second position, the limit button is in the limit slot.

[0013] Furthermore, the adjustment device has a telescopic component, the knife body is connected to the telescopic component, and the telescopic component is used to adjust the height of the knife body.

[0014] Furthermore, the telescopic assembly includes a threaded rod, a turntable, and a knife seat. The knife seat is provided with a rotating opening. The threaded rod is connected to the adjusting device and is passed through the knife seat and the rotating opening. The turntable is arranged in the rotating opening. A threaded hole is provided in the middle of the turntable. The turntable is threadedly connected to the threaded rod. The turntable is slidably connected to the threaded rod, and the knife body is connected to the knife seat.

[0015] Furthermore, the adjustment device also includes a guide rod, which is penetrated by the knife seat, and the knife seat is slidably connected to the guide rod.

[0016] Furthermore, the knife body is detachably connected to the outer side of the bottom of the knife seat through a fastener.

[0017] Furthermore, the adjustment device includes an adjustment seat, the adjustment seat has an extension plate, the adjustment seat and the extension plate form an L-shaped structure, and the extension plate is rotatably connected to the seat body.

[0018] Furthermore, the rotation angle of the knife body is 150° to 180°.

[0019] Compared with the prior art, the utility model provides a rotating light-blocking knife for an X-ray polycrystal diffractometer. By setting an adjustment device, the knife body is connected to the base through the adjustment device. When the sample needs to be changed, the knife body is rotated in the vertical plane to make the blade move away from the sample stage until there is enough space for sample changing between the blade and the sample stage. Then, the sample can be changed without disassembling the knife body, which saves time and effort. Moreover, since only the light-blocking knife is rotated each time the sample is changed, the light-blocking knife can be kept stable and the heights of both ends can be kept consistent, and shaking of the light-blocking knife can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 The structure of the rotating light-blocking knife for the X-ray polycrystal diffractometer provided by the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the rotating light-blocking knife for the X-ray polycrystal diffractometer provided by the utility model is shown in FIG. Figure 2 .

[0023] Reference numerals:

[0024] 10. Knife body;

[0025] 20. Limit button; 201. Limit slot;

[0026] 30. Adjustment device; 301. Telescopic assembly; 302. Threaded rod; 303. Turntable; 304. Knife holder; 305. Rotating opening; 306. Guide rod; 31. Adjustment seat; 311. Extension plate;

[0027] 40, seat body; 401, fixed seat; 402, extension shaft; 403, limit plate;

[0028] 50. Connect the cylinders. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] In the accompanying drawings, the size and relative size of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments may be implemented differently, a specific process sequence may be performed in a different order than described. For example, two successively described processes may be performed substantially simultaneously or in an order opposite to the order described. In addition, the same reference numerals represent the same components.

[0031] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0032] Example 1

[0033] A specific embodiment of the utility model is as follows Figure 1 to Figure 2 As shown, a rotating light-blocking knife for an X-ray polycrystalline diffractometer is disclosed, comprising:

[0034] The base body 40 is arranged on the frame of the X-ray polycrystalline diffractometer;

[0035] An adjusting device 30, wherein the adjusting device 30 is rotatably connected to the seat body 40;

[0036] The knife body 10 is connected to the adjusting device 30 and can rotate in a vertical plane with the adjusting device 30 so that the blade of the knife body 10 approaches and moves away from the sample on the test bench; that is, the knife body 10 can be rotated from a state where the blade is facing the sample below to a state where the blade is horizontal, upward or obliquely upward under the action of the adjusting device 30. It can also be understood that the rotation angle of the knife body 10 is between 0° and 180°. Preferably, the knife body 10 can be rotated within a range of 150° to 180° under the action of the adjusting device.

[0037] In one optional embodiment, the rotating light-blocking knife for X-ray polycrystalline diffractometer further includes a limit button 20, which is disposed on the base 40, and the limit button 20 can be switched between a first position and a second position, so that the limit button 20 moves into or out of the rotation path of the adjustment device 30. Specifically, when the limit button 20 is in the first position, at least a portion of the limit button 20 is located on one side of the adjustment device 30 and on the rotation path of the adjustment device 30. At this time, the knife body 10 cannot be rotated and changed position by the adjustment device 30, and its position is stuck. When the limit button 20 is in the second position, the limit button 20 leaves the rotation path of the adjustment device 30, and the knife body 10 can be rotated and changed position by the adjustment device 30. During operation, the limit button 20 is pressed, so that the adjustment device 30 can drive the knife body 10 to rotate relative to the base 40, and the knife body 10 rotates 90° to above the sample stage.

[0038] Compared with the prior art, which requires the light-blocking knife to be disassembled and reinstalled when loading samples, which has the disadvantages of cumbersome operation and may also cause the light-blocking knife to shake, the present application provides an adjustment device to connect the knife body to the base through the adjustment device. When the sample needs to be changed, it is only necessary to press the limit button 20 so that the limit button 20 leaves the rotation path of the knife body 10, release the rotation lock of the knife body, and rotate the knife body 10 to a certain angle in the vertical plane, and the blade is away from the sample stage until it is rotated to a point where there is enough space for sample changing operation between the blade and the sample stage. Then, the sample can be changed without disassembling the knife body 10, which saves time and effort. In addition, since only the light-blocking knife is rotated each time the sample is changed, the light-blocking knife can be kept stable at both ends with the same height, and shaking of the light-blocking knife can be avoided.

[0039] In some embodiments, the seat body 40 includes a fixed seat 401, an extension shaft 402, and a limiting plate 403. The extension shaft 402 is connected to the fixed seat 401, the limiting plate 403 is connected to the end of the extension shaft 402, and the adjustment device 30 is sleeved on the extension shaft 402 and is limited and fit with the limiting plate 403.

[0040] In this embodiment, the setting of the limiting piece 403 can prevent the adjustment device 30 from falling off. The adjustment device 30 rotates through the extension shaft 402, and the width of the adjustment device 30 is exactly the same as the length of the exposed part of the extension shaft 402, so that the sleeve device fits exactly with the limiting piece 403, preventing the adjustment device 30 from shaking when rotating.

[0041] The limit button 20 is movably connected to a limit slot 201 opened on the fixed seat 401. When the limit button 20 is in a first position, at least a portion of the limit button 20 is located on one side of the adjusting device 30 and on the rotation path of the adjusting device 30. When the limit button 20 is in a second position, the limit button 20 is in the limit slot 201.

[0042] Specifically, when the limit button 20 is in the first position, at least part of the limit button 20 is located on one side of the adjustment device 30 and on the rotation path of the adjustment device 30. At this time, the limit button 20 limits the adjustment device 30 so that the adjustment device 30 cannot rotate. When the limit button 20 is in the second position, the limit button 20 is in the limit slot 201. At this time, the limit button 20 and the adjustment device 30 do not interfere with each other, and the adjustment device 30 can rotate.

[0043] In some embodiments, the adjustment device 30 has a telescopic component 301, and the knife body 10 is connected to the telescopic component 301. The telescopic component 301 is configured to adjust the height of the knife body 10, specifically, it can adjust the distance between the blade and the sample when the blade is facing the sample.

[0044] In one of the optional embodiments, the telescopic assembly 301 includes a threaded rod 302, a turntable 303, and a knife seat 304. The knife seat 304 is provided with a rotating opening 305. The threaded rod 302 is connected to the adjustment device 30 and is passed through the knife seat 304, and passes through the rotating opening 305. The turntable 303 is arranged in the rotating opening 305. A threaded hole is provided in the middle of the turntable 303. The turntable 303 is threadedly connected to the threaded rod 302. The turntable 303 is slidably connected to the threaded rod 302, and the knife body 10 is connected to the knife seat 304.

[0045] During operation, the turntable 303 is rotated to make the turntable 303 move relative to the threaded rod 302. When the turntable 303 moves, the knife holder 304 can be driven to move, that is, the turntable 303 moves upward, driving the knife holder 304 to move upward. The turntable 303 moves downward, driving the knife holder 304 to move downward, so as to adjust the upper and lower heights of the knife body 10.

[0046] The adjusting device 30 further includes a guide rod 306, which is passed through the knife seat 304, and the knife seat 304 is slidably connected to the guide rod 306. The guide rod 306 is provided to make the movement of the knife seat 304 more stable.

[0047] The knife body 10 is detachably connected to the outer side of the bottom of the knife seat 304 through a fastener. Optionally, the fastener is a bolt or a screw.

[0048] The knife body 10 extends upward and contacts the lower end surface of the connecting cylinder 50 that penetrates the base body 40 to prevent light leakage when the X-ray polycrystalline diffractometer is working. The connecting cylinder 50 is arranged on the frame of the X-ray polycrystalline diffractometer and penetrates to the position below the bottom surface of the base body 40.

[0049] In some embodiments, the adjustment device 30 includes an adjustment seat 31, the adjustment seat 31 has an extension plate 311, the adjustment seat 31 and the extension plate 311 together form an L-shaped structure, and the extension plate 311 is rotatably connected to the seat body 40. The adjustment seat 31 is connected to the knife seat 304. In this configuration, the extension plate 311 has a certain length, so that when the adjustment seat 31 rotates through the extension plate 311, the knife body 10 can be rotated to a certain distance above the sample stage to avoid interference.

[0050] The above specific implementation methods further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above are only specific implementation methods of the present application and are not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A rotating light-blocking knife for an X-ray polycrystal diffractometer, characterized in that: include seat body; An adjusting device, the adjusting device being rotatably connected to the seat body; The knife body is connected to the adjusting device and can rotate in a vertical plane along with the adjusting device so that the blade of the knife body is close to and away from the test platform.

2. The rotating light-blocking knife for X-ray polycrystalline diffractometer according to claim 1, characterized in that: The seat body comprises a fixed seat, an extension shaft and a limiting plate, the extension shaft is connected to the fixed seat, the limiting plate is connected to the end of the extension shaft, the adjustment device is sleeved on the extension shaft and is limitedly fitted with the limiting plate.

3. The rotating light-blocking knife for X-ray polycrystalline diffractometer according to claim 2, characterized in that: It also includes a limit button, which is arranged on the seat body and can be switched between a first position and a second position so that the limit button moves into or out of the rotation path of the adjustment device.

4. The rotating light-blocking knife for X-ray polycrystalline diffractometer according to claim 3, characterized in that: The limit button is movably connected to a limit slot opened on the fixing seat. When the limit button is in a first position, at least a portion of the limit button is located on one side of the adjusting device and on the rotation path of the adjusting device. When the limit button is in a second position, the limit button is in the limit slot.

5. The rotating light-blocking knife for X-ray polycrystalline diffractometer according to any one of claims 1 to 4, characterized in that: The adjusting device comprises a telescopic component, the knife body is connected to the telescopic component, and the telescopic component is used to adjust the height of the knife body.

6. The rotating light-blocking knife for X-ray polycrystalline diffractometer according to claim 5, characterized in that: The telescopic assembly includes a threaded rod, a turntable, and a knife seat. The knife seat is provided with a rotating opening. The threaded rod is connected to the adjustment device and is passed through the knife seat and the rotating opening. The turntable is arranged in the rotating opening. A threaded hole is provided in the middle of the turntable. The turntable is threadedly connected to the threaded rod. The turntable is slidably connected to the threaded rod. The knife body is connected to the knife seat.

7. The rotating light-blocking knife for X-ray polycrystalline diffractometer according to claim 6, characterized in that: The adjusting device also includes a guide rod, which is passed through the knife seat, and the knife seat is slidably connected to the guide rod.

8. The rotating light-blocking knife for X-ray polycrystalline diffractometer according to claim 6 or 7, characterized in that: The knife body is detachably connected to the outer side of the bottom of the knife seat through a fastener.

9. The rotating light-blocking knife for X-ray polycrystalline diffractometer according to claim 4, characterized in that: The adjusting device comprises an adjusting seat, wherein the adjusting seat has an extension plate, the adjusting seat and the extension plate form an L-shaped structure, and the extension plate is rotatably connected to the seat body.

10. The rotating light-blocking knife for X-ray polycrystalline diffractometer according to claim 9, characterized in that: The rotation angle of the knife body is 150° to 180°.

Images