Limiting structure of soil fluorescence spectrometer

Abstract

The utility model discloses a limiting structure of a soil fluorescence spectrometer. The limiting structure comprises a box body, a light source and a clamping assembly, during soil detection, a soil sample is placed on the objective table, then the driving clamping rod is pushed to move in the direction close to the objective table, at the moment, the first push block pushes the annular rod to rotate around the objective table, the annular rod drives the second push block, the second push block pushes the driven clamping rod to move in the direction close to the objective table, and the driven clamping rod is driven to move in the direction close to the objective table. Namely, the driving clamping rod and the driven clamping rod synchronously move in the direction close to the objective table so as to jointly clamp and fix the soil sample. After the soil sample is fixed, the cover body is covered, and the light source is started to detect the soil sample. According to the limiting structure of the soil fluorescence spectrophotometer, disclosed by the utility model, a soil sample can be limited and fixed on the objective table, so that the soil sample is prevented from shaking in the operation process of an operator, and the detection accuracy of the spectrophotometer is improved.

Description

Technical Field

[0001] This utility model relates to the field of soil fluorescence spectrometer technology, and in particular to a limiting structure for a soil fluorescence spectrometer. Background Technology

[0002] A soil fluorescence spectrometer is an instrument used to analyze fluorescent substances in soil. It obtains information about the soil's chemical composition and organic matter by detecting the fluorescence signals emitted by soil samples under specific wavelength light excitation. Contaminated soil contains heavy metal pollutants such as cadmium, mercury, arsenic, lead, chromium, copper, and molybdenum. These heavy metal pollutants accumulate in the human body through the food chain and can cause damage. For example, cadmium, mercury, and lead can damage the kidneys and nervous system, leading to osteoporosis and intellectual disability; arsenic, chromium, and nickel are carcinogenic and can induce skin and lung cancers. Therefore, soil testing is necessary.

[0003] Existing soil fluorescence spectrometers typically involve placing the soil sample on the spectrometer's stage, covering it with a light shield, and then having an operator press a button to perform the detection. Since soil samples are often irregularly shaped, such as having a non-planar bottom, they are prone to movement during operation, leading to reduced accuracy. Therefore, a limiting structure for the soil fluorescence spectrometer is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a limiting structure for a soil fluorescence spectrometer to solve the above-mentioned problems.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A soil fluorescence spectrometer confinement structure includes:

[0007] A box body, on which a cover is rotatably connected, and a support plate is provided inside the box body, with a transparent platform embedded in the support plate;

[0008] A light source is disposed inside the housing, and the light source is located below the stage;

[0009] The clamping assembly includes an annular rod and an active clamping rod disposed on the support plate. First push blocks are disposed on both sides of the active clamping rod, and the side of the first push blocks is in contact with the end face of the annular rod. A second push block is disposed on the inner side of the annular rod, and a driven clamping rod is disposed on one side of the second push block. When the active clamping rod moves toward the platform, the first push blocks push the annular rod to rotate around the platform, and the second push blocks push the driven clamping rod to move toward the platform.

[0010] Optionally, both the active clamping rod and the driven clamping rod are provided with elastic clamping components at one end near the stage. The elastic clamping component includes a clamping block. The active clamping rod and the driven clamping rod are provided with guide grooves at one end near the elastic clamping component. A guide rod corresponding to the guide groove is provided on one side of the clamping block. A second spring is sleeved on the guide rod.

[0011] Optionally, the diameter of the guide groove opening is smaller than the diameter of the groove bottom, and a limit ring is provided at the end of the guide rod away from the clamping block.

[0012] Optionally, the clamping block is provided with an elastic cushion on the side away from the guide rod.

[0013] Optionally, the support plate is provided with a radial guide rail and a plurality of annular guide rails, the driven clamping rod and the active clamping rod slide on the radial guide rail, and the annular rod slides on the annular guide rail.

[0014] Optionally, the bottom surface of the active clamping rod is provided with a groove, the support plate is provided with a vertical plate, the vertical plate extends into the groove, and a first spring is provided in the groove.

[0015] Optionally, a protrusion is provided at one end of the driven clamping rod near the second push block. The cross-section of the protrusion is T-shaped, and a groove corresponding to the protrusion is provided on the side of the second push block. The protrusion can slide in the groove.

[0016] Optionally, a handle is provided at the end of the active clamping rod away from the platform.

[0017] Optionally, the housing and the cover are rotatably connected by a hinge; a button is provided on one side of the housing.

[0018] Compared with existing technologies, this invention has the following advantages: During soil testing, the soil sample is placed on the stage, and then the active clamping rod is pushed to move towards the stage. At this time, the first pusher pushes the ring rod to rotate around the stage, and the ring rod drives the second pusher, which in turn pushes the driven clamping rod to move towards the stage. That is, the active and driven clamping rods move synchronously towards the stage to jointly clamp and fix the soil sample. After the soil sample is fixed, the cover is closed, and the light source is activated to test the soil sample. This invention discloses a soil fluorescence spectrometer limiting structure that can limit and fix the soil sample on the stage, preventing the soil sample from shaking during operation and thus improving the accuracy of the spectrometer detection. Attached Figure Description

[0019] 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 these drawings without creative effort.

[0020] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the box of this utility model;

[0023] Figure 3 This is a schematic diagram showing the structure of the present invention with the support plate and clamping assembly separated.

[0024] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0025] Figure 5 This is a schematic diagram of the connection structure between the clamping assembly and the elastic clamping member of this utility model;

[0026] Figure 6 This is a schematic diagram of the connection structure between the driven clamping rod and the elastic clamping member of this utility model;

[0027] Figure 7 This is a schematic diagram of the bottom structure of the active clamping rod of this utility model.

[0028] Illustrations: 10. Box body; 11. Lid; 12. Support plate; 13. Platform; 14. Vertical plate; 15. Button; 20. Light source; 30. Clamping assembly; 31. Ring rod; 32. Active clamping rod; 321. Groove; 33. First push block; 34. Second push block; 341. Slide groove; 35. Driven clamping rod; 351. Protrusion; 36. Radial guide rail; 37. Ring guide rail; 38. First spring; 39. Guide groove; 40. Elastic clamping component; 41. Clamping block; 42. Guide rod; 43. Second spring; 44. Limiting ring; 45. Cushion. Detailed Implementation

[0029] To make the invention's objectives, features, and advantages more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 7This utility model provides a limiting structure for a soil fluorescence spectrometer, including a housing 10, a light source 20, and a clamping assembly 30. A cover 11 is rotatably connected to the housing 10, and a support plate 12 is disposed inside the housing 10. The inner wall of the cover 11 and the upper surface of the support plate 12 can be closed to form a sample chamber that can block external light. A transparent stage 13 is embedded in the support plate 12, and the light source 20 is disposed inside the housing 10, with the light source 20 located below the stage 13. During detection, the light emitted by the light source 20 passes through the stage 13 to detect the soil. The clamping assembly 30 is used to clamp the soil sample, which can clamp and fix the soil sample on the stage 13. The clamping assembly 30 includes an annular rod 31 and an active clamping rod 32 disposed on the support plate 12. The annular rod 31 is disposed around the stage 13, and the stage 13 is located on the axis of the annular rod 31. An active clamping rod 32 is located between the two end faces of an annular rod 31, and first push blocks 33 are provided on both sides of the active clamping rod 32. The side of the first push block 33 near the end face of the annular rod 31 is inclined, and this inclined surface is always in contact with the end face of the annular rod 31. A second push block 34 is provided on the inner side of the annular rod 31, and a driven clamping rod 35 is provided on one side of the second push block 34. The side of the second push block 34 near the driven clamping rod 35 is inclined. When the active clamping rod 32 moves toward the stage 13, the active clamping rod 32 drives the first push block 33, the first push block 33 pushes the annular rod 31 to rotate around the stage 13, the annular rod 31 drives the second push block 34, the second push block 34 pushes the driven clamping rod 35 to move toward the stage 13, thereby clamping the soil sample.

[0033] Specifically, during soil testing, the soil sample is placed on the stage 13, and then the active clamping rod 32 is pushed, causing it to move towards the stage 13. At this time, the first pusher 33 pushes the ring rod 31 to rotate around the stage 13. The ring rod 31 drives the second pusher 34, which in turn pushes the driven clamping rod 35 towards the stage 13. Thus, the active clamping rod 32 and the driven clamping rod 35 move synchronously towards the stage 13 to jointly clamp and fix the soil sample. After the soil sample is fixed, the cover 11 is closed, and the light source 20 is activated to detect the soil sample. This invention discloses a soil fluorescence spectrometer limiting structure that can limit and fix the soil sample on the stage 13, preventing the soil sample from shaking during operation and thus improving the accuracy of the spectrometer detection.

[0034] It should be noted that there are two second push blocks 34 in this embodiment of the present invention, and correspondingly, there are also two driven clamping rods 35; the active clamping rod 32 and the driven clamping rod 35 are both located on the straight line of the diameter of the annular rod 31, and the included angle between the driven clamping rod 35 and the active clamping rod 32 is 120°.

[0035] Furthermore, both the active clamping rod 32 and the driven clamping rod 35 are provided with elastic clamping elements 40 at their ends near the stage 13. The design of the elastic clamping elements 40 effectively prevents damage to the soil sample during clamping. The elastic clamping element 40 includes a clamping block 41. Guide grooves 39 are provided at the ends of the active and driven clamping rods 32 and 35 near the elastic clamping element 40. A guide rod 42 corresponding to the guide groove 39 is provided on one side of the clamping block 41, i.e., the guide rod 42 is inserted into the guide groove 39. A second spring 43 is sleeved on the guide rod 42. During clamping, the second spring 43 generates elastic force on the clamping block 41. An elastic pad 45 is provided on the side of the clamping block 41 away from the guide rod 42. The pad 45 is made of a soft material to further prevent damage to the soil sample during clamping.

[0036] The diameter of the guide groove 39 opening is smaller than the diameter of the groove bottom, and a limit ring 44 is provided at the end of the guide rod 42 away from the clamping block 41. That is, the guide rod 42 can retract into or extend out of the guide groove 39, and the limit ring 44 prevents the guide rod 42 from completely disengaging from the guide groove 39. Optionally, the end of the guide rod 42 away from the limit ring 44 is provided with an external thread, and the clamping block 41 is provided with a threaded hole corresponding to the external thread, that is, the guide rod 42 and the clamping block 41 are connected by threads.

[0037] Furthermore, the support plate 12 is provided with a radial guide rail 36 and multiple annular guide rails 37. The driven clamping rod 35 and the active clamping rod 32 slide on the radial guide rail 36, and the annular rod 31 slides on the annular guide rail 37. With this technical solution, both the driven clamping rod 35 and the active clamping rod 32 can move only along the straight line of the diameter of the annular guide rail 37, and the annular rod 31 can rotate only on the circular track formed by the multiple annular guide rails 37.

[0038] Furthermore, the bottom surface of the active clamping rod 32 is provided with a groove 321, and the support plate 12 is provided with a vertical plate 14, which extends into the groove 321. A first spring 38 is provided in the groove 321. One end of the first spring 38 is connected to the vertical plate 14, and the other end is connected to the side wall of the groove 321 near the stage 13. When the first spring 38 is in its natural state, the distance between the elastic clamping member 40 and the stage 13 is minimal. A handle is provided at the end of the active clamping rod 32 away from the stage 13. When it is necessary to place the soil sample on the stage 13, the operator pulls the handle to move the active clamping rod 32 away from the stage 13. At this time, the first spring 38 is compressed. After the soil sample is placed on the stage 13, the operator releases the handle, and the active clamping rod 32 moves towards the stage 13 under the elastic force of the first spring 38, thereby completing the clamping of the soil sample.

[0039] Furthermore, a protrusion 351 is provided at one end of the driven clamping rod 35 near the second push block 34. The cross-section of the protrusion 351 is T-shaped. The side of the second push block 34 is provided with a groove 341 corresponding to the protrusion 351, and the protrusion 351 can slide within the groove 341. It should be noted that, since the angle between the groove 341 and the driven clamping rod 35 changes during the movement of the second push block 34, the protrusion 351 and the driven clamping rod 35 are rotatably connected in this embodiment of the present invention. Specifically, a mounting groove is provided at one end of the driven clamping rod 35 near the second push block 34, and a rotating shaft is provided in the mounting groove; the protrusion 351 is inserted into the mounting groove, and the protrusion 351 is provided with a rotating shaft hole corresponding to the rotating shaft. The rotating shaft passes through the rotating shaft hole, so that the protrusion 351 can rotate around the rotating shaft.

[0040] Furthermore, the housing 10 and the cover 11 are rotatably connected by a hinge; a button 15 is provided on one side of the housing 10.

[0041] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A soil fluorescence spectrometer limiting structure, characterized in that, Include: Box (10), the box (10) is rotatably connected with the cover (11), the box (10) is provided with support plate (12), the support plate (12) is embedded with transparent object table (13); Light source (20) is arranged in the box (10), the light source (20) is located below the object table (13); Clamping assembly (30), including the annular rod (31) and the driving clamping rod (32) arranged on the support plate (12), the two sides of the driving clamping rod (32) are provided with the first push block (33), the side of the first push block (33) is attached to the end surface of the annular rod (31), the inner side of the annular rod (31) is provided with the second push block (34), one side of the second push block (34) is provided with the driven clamping rod (35), when the driving clamping rod (32) moves to the direction close to the object table (13), the first push block (33) drives the annular rod (31) to rotate around the object table (13), the second push block (34) drives the driven clamping rod (35) to move to the direction close to the object table (13).

2. The soil fluorescence spectrometer limiting structure according to claim 1, characterized in that, The end of the driving clamping rod (32) and the driven clamping rod (35) close to the object table (13) is provided with an elastic clamping piece (40), the elastic clamping piece (40) includes a clamping block (41), the end of the driving clamping rod (32) and the driven clamping rod (35) close to the elastic clamping piece (40) is provided with a guide groove (39), one side of the clamping block (41) is provided with a guide rod (42) corresponding to the guide groove (39); the guide rod (42) is sleeved with a second spring (43).

3. The soil fluorescence spectrometer limiting structure according to claim 2, characterized in that, The diameter of the slot of the guide groove (39) is smaller than the diameter of the groove bottom, and the end of the guide rod (42) away from the clamping block (41) is provided with a limiting ring (44).

4. The soil fluorescence spectrometer limiting structure according to claim 2, characterized in that, The side of the clamping block (41) away from the guide rod (42) is provided with an elastic back cushion (45).

5. The soil fluorescence spectrometer limiting structure according to claim 1, characterized in that, The support plate (12) is provided with a radial guide rail (36) and a plurality of annular guide rails (37), the driven clamping rod (35) and the driving clamping rod (32) slide on the radial guide rail (36), and the annular rod (31) slides on the annular guide rail (37).

6. The soil fluorescence spectrometer limiting structure according to claim 1, characterized in that, The bottom surface of the driving clamping rod (32) is provided with a groove (321), the support plate (12) is provided with a vertical plate (14), the vertical plate (14) extends into the groove (321), and the groove (321) is provided with a first spring (38).

7. The soil fluorescence spectrometer limiting structure according to claim 1, characterized in that, The end of the driven clamping rod (35) close to the second push block (34) is provided with a protrusion (351), the cross section of the protrusion (351) is T-shaped, the side of the second push block (34) is provided with a sliding groove (341) corresponding to the protrusion (351), and the protrusion (351) can slide in the sliding groove (341).

8. The soil fluorescence spectrometer limiting structure according to claim 1, characterized in that, The end of the driving clamping rod (32) away from the object table (13) is provided with a handle.

9. The soil fluorescence spectrometer limiting structure according to claim 1, characterized in that, The box (10) and the cover (11) are connected through a hinge; one side of the box (10) is provided with a button (15).

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