Fixing device for measuring chemical components of small-size sample

Abstract

The utility model relates to the technical field of measurement, and discloses a fixing device for measuring chemical components of a small-size sample, which comprises a mounting base, a fixing plate fixedly mounted above the mounting base, and a detection group arranged above the fixing plate. According to the utility model, by rotating the rotary button, when the rotary button rotates, the rotary button can drive the threaded rod to rotate, and when the threaded rod rotates, the threaded rod can drive the moving block to slide on the bottom of the detection assembly, so that the horizontal movement of the moving block can be ensured; when a moving block horizontally moves, the moving block can drive two connecting rods to be close to each other through a movable rod, when the two connecting rods are close to each other, the two connecting rods can drive Z-shaped rods to be close to each other, and when the two Z-shaped rods are close to each other, a positioning block can horizontally move under the assistance of a circular inserting rod; therefore, the placed zirconia ceramic chip is clamped by the positioning block, and the size of the detection hole can be changed through the zirconia ceramic chip.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the measurement technical field, specifically relates to a kind of fixing device of measuring small size sample chemical component. BACKGROUND

[0002] ARL-4460 direct reading spectrometer produced by Thermo-Fisher is the most widely used photoelectric direct reading spectrometer currently, it has low detection limit, high accuracy, strong stability, can satisfy in complex environment test chemical element in metal sample, it is a kind of fast physical analysis method, its sample preparation is simple, analysis is fast etc., make it become one of important instrument analysis methods in analytical chemistry, and is widely used in metallurgical and mechanical industry.According to the requirement of standard GB / T4336-2016, the sample without cutting, surface should remove 1mm thickness.And guarantee that sample surface is flat, clean.

[0003] However, the normal cover plate excitation hole of spectrometer is 10mm, when the diameter of test piece is less than 10mm, it cannot be tested, even if using small sample adapter, it will also cause air leakage and light leakage due to sealing problem, thereby affecting measurement data.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the basic concept of the technical scheme of the utility model is:

[0006] A kind of fixing device of measuring small size sample chemical component, including installation base, fixed mounting is provided with fixed plate above the installation base, detection assembly is arranged above the fixed plate, detection hole is opened in the detection assembly, zirconia ceramic sheet is placed in the bottom of the detection assembly, two mutually symmetrical positioning blocks are arranged in the side wall of the zirconia ceramic sheet, limiting block is also arranged in the side wall of the zirconia ceramic sheet, slot is opened in the limiting block, and drive assembly is arranged in the inner cavity of the slot, and the drive assembly is used to control the distance between the two positioning blocks.

[0007] As a preferred embodiment of the utility model, the drive assembly includes rotary knob, threaded rod is fixedly installed on the rotary knob, moving block is fixedly connected to the end away from the rotary knob of the threaded rod, and the moving block is horizontally slidably arranged in the bottom of the detection assembly.

[0008] As a preferred embodiment of the utility model, the opposite two side walls of the moving block are movably installed with movable rod, two movable rods are mutually symmetrical, two connecting rods are movably connected to the end away from the moving block of two movable rods respectively, two connecting rods are mutually symmetrical, and the opposite end of two connecting rods is fixedly connected with Z-shaped rod respectively, and two Z-shaped rods are mutually symmetrical.

[0009] In a preferred embodiment of this utility model, two circular plug rods are fixedly connected to opposite ends of the two positioning blocks, and circular mounting cylinders are movably inserted into the two circular plug rods. The two circular mounting cylinders are symmetrical to each other and are respectively disposed at the bottom of the detection component.

[0010] In a preferred embodiment of this utility model, the inner cavities of the two circular mounting cylinders are respectively provided with sliding mechanisms. The sliding mechanisms include two sliding grooves, which are respectively opened in the inner cavities of the circular mounting cylinders. The two sliding grooves are symmetrical to each other. A slider is slidably installed in the inner cavity of each of the two sliding grooves, and a moving plate is fixedly connected to one of the opposite side walls of the two sliders.

[0011] In a preferred embodiment of this utility model, a circular plug rod is fixedly connected to one end of each of the two movable plates, and a return spring is fixedly connected to one end of each of the two movable plates away from the circular plug rod. The other end of the return spring is fixedly connected to the inner wall of the circular mounting cylinder.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention utilizes a rotary knob. When the knob rotates, it drives a threaded rod to rotate, which in turn causes a moving block to slide on the bottom of the detection assembly. This ensures the moving block moves horizontally. As the moving block moves horizontally, it drives two connecting rods to move closer together via a movable rod. When the two connecting rods move closer together, they drive Z-shaped rods to move closer together. When the two Z-shaped rods move closer together, the positioning block can move horizontally with the assistance of a circular insertion rod, thereby clamping the placed zirconia ceramic sheet. This allows the size of the detection hole to be changed by the zirconia ceramic sheet.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram:

[0016] Fig. 1 This is a three-dimensional structural diagram of the present invention;

[0017] Fig. 2 This is a schematic diagram of the structure of this utility model from below;

[0018] Fig. 3 This is a partial structural diagram of the present invention viewed from below;

[0019] Fig. 4 This is a partial structural diagram of the circular mounting cylinder of this utility model.

[0020] In the diagram: 1. Mounting base; 2. Fixing plate; 3. Detection component; 4. Detection hole; 5. Zirconia ceramic sheet; 6. Circular mounting cylinder; 7. Circular plug rod; 8. Positioning block; 9. Limiting block; 10. Rotary knob; 11. Threaded rod; 12. Moving block; 13. Movable rod; 14. Connecting rod; 15. Z-shaped rod; 16. Slide groove; 17. Sliding block; 18. Moving plate; 19. Return spring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0022] like Figs. 1 to 4 As shown, a fixing device for measuring the chemical composition of small-sized samples includes a mounting base 1, a fixing plate 2 fixedly mounted on the mounting base 1, a detection component 3 disposed on the fixing plate 2, a detection hole 4 opened on the detection component 3, a zirconia ceramic sheet 5 placed at the bottom of the detection component 3, two mutually symmetrical positioning blocks 8 disposed on the side wall of the zirconia ceramic sheet 5, and a limiting block 9 disposed on one side wall of the zirconia ceramic sheet, a groove opened in the limiting block 9, and a driving component disposed in the inner cavity of the groove, the driving component being used to control the distance between the two positioning blocks 8. By rotating the rotary knob 10, the threaded rod 11 can be rotated. When the threaded rod 11 rotates, it can drive the moving block 12 to slide on the bottom of the detection assembly 3, thus ensuring that the moving block 12 moves horizontally. When the moving block 12 moves horizontally, it can drive the two connecting rods 14 to move closer to each other through the movable rod 13. When the two connecting rods 14 move closer to each other, they can drive the Z-shaped rods 15 to move closer to each other. When the two Z-shaped rods 15 move closer to each other, the positioning block 8 can move horizontally with the assistance of the circular plug rod 7, so that the positioning block 8 can clamp the placed zirconia ceramic sheet 5, thereby changing the size of the detection hole through the zirconia ceramic sheet 5.

[0023] In a specific embodiment, the drive assembly includes a rotary knob 10, on which a threaded rod 11 is fixedly mounted. A movable block 12 is fixedly connected to the end of the threaded rod 11 away from the rotary knob 10, and the movable block 12 is horizontally slidably disposed at the bottom of the detection assembly 3. In this configuration, the installation position and components of the drive assembly are determined.

[0024] Further, the two opposite side walls of the moving block 12 are movably provided with movable rods 13, the two movable rods 13 are symmetrical to each other, the two movable rods 13 are movably connected to connecting rods 14 at the ends away from the moving block 12, the two connecting rods 14 are symmetrical to each other, the opposite ends of the two connecting rods 14 are fixedly connected with Z-shaped rods 15, and the two Z-shaped rods 15 are symmetrical to each other. In the present arrangement, the installation position of the Z-shaped rod 15 is determined, and the horizontal movement of the Z-shaped rod 15 is ensured.

[0025] Further, the two opposite ends of the two positioning blocks 8 are fixedly connected with circular insertion rods 7, the two circular insertion rods 7 are movably inserted with circular mounting cylinders 6, the two circular mounting cylinders 6 are symmetrical to each other, and the two circular mounting cylinders 6 are arranged at the bottom of the detection assembly 3. In the present arrangement, the installation position of the circular insertion rod 7 is determined.

[0026] Further, the inner cavities of the two circular mounting cylinders 6 are respectively provided with sliding mechanisms, the sliding mechanism comprises two sliding grooves 16, the two sliding grooves 16 are respectively arranged in the inner cavities of the circular mounting cylinders 6, the two sliding grooves 16 are symmetrical to each other, the inner cavities of the two sliding grooves 16 are slidably provided with sliding blocks 17, and the opposite side walls of the two sliding blocks 17 are fixedly connected with moving plates 18. In the present arrangement, the components of the inner cavities of the circular mounting cylinders 6 are determined.

[0027] Further, the two moving plates 18 are fixedly connected with circular insertion rods 7 at one end, the two moving plates 18 are fixedly connected with return springs 19 at the ends away from the circular insertion rods 7, and the other ends of the return springs 19 are fixedly connected with the inner walls of the circular mounting cylinders 6. In the present arrangement, the horizontal movement of the moving plate 18 is ensured.

[0028] The implementation principle of the fixed device for measuring the chemical composition of a small-size sample according to the present embodiment is as follows:

[0029] Firstly the staff can rotate the rotating knob 10, when the rotating knob 10 rotates it can drive the threaded rod 11 to rotate, when the threaded rod 11 rotates it can drive the moving block 12 to slide on the bottom of the detection assembly 3, thus can guarantee the moving block 12 to move horizontally, when the moving block 12 moves horizontally it can drive the two connecting rods 14 to approach each other through the movable rod 13, when the two connecting rods 14 approach each other, it can drive the Z-shaped rod 15 to approach each other, when the two Z-shaped rods 15 approach each other, at this time the positioning block 8 can move horizontally with the aid of the circular plug-in rod 7, so that the positioning block 8 clamps the placed zirconia ceramic sheet 5 (wherein the specific movement of the circular plug-in rod 7 is because the reset spring 19 set in the circular mounting cylinder 6 can always give the moving plate 18 a elastic force, and because the moving plate 18 slides under the aid of the sliding groove 16 and the sliding block 17, thus can guarantee the moving plate 18 to move horizontally, when the moving plate 18 moves it can drive the circular plug-in rod 7 to move, thus can drive the positioning block 8 to move horizontally through the circular plug-in rod 7).

Claims

1. A fixed device for measuring the chemical composition of small size samples, comprising a mounting base (1), characterized in that, The mounting base (1) is fixedly installed with a fixed plate (2), the fixed plate (2) is provided with a detection assembly (3), the detection assembly (3) is provided with a detection hole (4), the bottom of the detection assembly (3) is placed with a zirconia ceramic sheet (5), the side wall of the zirconia ceramic sheet (5) is provided with two symmetrical positioning blocks (8), the side wall of the zirconia ceramic sheet is also provided with a limiting block (9), the limiting block (9) is provided with a slot, and the inner cavity of the slot is provided with a driving assembly.

2. A fixture for measuring the chemical composition of a small size sample according to claim 1, characterized in that, The driving assembly comprises a rotating knob (10), the rotating knob (10) is fixedly installed with a threaded rod (11), the threaded rod (11) is fixedly connected with a moving block (12) away from the rotating knob (10), and the moving block (12) is horizontally slidably arranged at the bottom of the detection assembly (3).

3. A fixture for measuring the chemical composition of a small size sample according to claim 2, characterized in that, The opposite two side walls of the moving block (12) are movably provided with movable rods (13), the two movable rods (13) are symmetrical to each other, and the two movable rods (13) are movably connected with connecting rods (14) away from the moving block (12), the two connecting rods (14) are symmetrical to each other, and the opposite ends of the two connecting rods (14) are fixedly connected with Z-shaped rods (15), respectively.

4. The apparatus of claim 1, wherein the apparatus is configured to measure the chemical composition of a small sample. The opposite ends of the two positioning blocks (8) are fixedly connected with circular insertion rods (7), respectively, and the two circular insertion rods (7) are movably inserted with circular mounting cylinders (6), respectively, the two circular mounting cylinders (6) are symmetrical to each other, and the two circular mounting cylinders (6) are arranged at the bottom of the detection assembly (3).

5. A fixture for measuring the chemical composition of a small size sample according to claim 4, characterized in that, The inner cavities of the two circular mounting cylinders (6) are respectively provided with sliding mechanisms, the sliding mechanism comprises two sliding grooves (16), the two sliding grooves (16) are respectively formed in the inner cavities of the circular mounting cylinders (6), the two sliding grooves (16) are symmetrical to each other, the inner cavities of the two sliding grooves (16) are slidably provided with sliding blocks (17), and the opposite side walls of the two sliding blocks (17) are fixedly connected with moving plates (18), respectively.

6. A fixture for measuring the chemical composition of a small size sample according to claim 5, characterized in that, The one end of the two moving plates (18) is fixedly connected with a circular insertion rod (7), the other end of the two moving plates (18) is fixedly connected with a reset spring (19) away from the circular insertion rod (7), and the other end of the reset spring (19) is fixedly connected with the inner wall of the circular mounting cylinder (6).

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