Near-infrared solid detection device

Abstract

The near-infrared solid detection device comprises a main body detection assembly and two end detection assemblies, the main body detection assembly comprises a mounting shell, the mounting shell is divided into an upper arc-shaped shell and a lower arc-shaped shell, the upper arc-shaped shell and the lower arc-shaped shell are both provided with first arc-shaped grooves, the two first arc-shaped grooves are spliced to form a first mounting groove, and the two ends of the first mounting groove are provided with second arc-shaped grooves; an upper horizontal fixing piece and a lower horizontal fixing piece are arranged on the two sides of the upper arc-shaped shell and the two sides of the lower arc-shaped shell respectively, an adjusting screw hole and a connecting screw hole are formed in the upper horizontal fixing piece and the lower horizontal fixing piece respectively, a plurality of threaded cylinders are arranged on the top of the upper horizontal fixing piece, and the bottom ends of the threaded cylinders extend out of the bottom end of the upper horizontal fixing piece and are provided with openings in a penetrating mode. The two-end detection assembly comprises two fixed shells, one side of each fixed shell is provided with a second arc-shaped groove, the other side of each fixed shell is provided with a detection port, the two fixed shells are connected through a spring, and the two second arc-shaped grooves are spliced to form a second installation groove. According to the utility model, the detection of large-size, sphere-like and cylinder-like products can be satisfied, the fixing effect is good, and the accuracy of the detection result can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of near-infrared detection accessories, in particular to a near-infrared solid detection device. Background Art

[0002] Due to its green and non-destructive detection advantages, the scope and field of near-infrared spectroscopy technology is constantly expanding, and the accessories for auxiliary detection objects are diversified. Common near-infrared detection accessories on the market include detection object cups, quartz dishes and integrating spheres, etc., which are used in conjunction with near-infrared instruments to detect solid and liquid detection objects. In order to expand the scope of use of near-infrared and realize intelligent online detection, the research objects have developed from offline pharmaceutical excipients and Chinese medicine powders to in-situ detection of large-volume and complete detection objects, such as root raw medicinal materials, bottled oral liquids, etc. In order to meet the transmission measurement needs of various surface shape detection objects such as spherical detection objects, arc detection objects, and plane detection objects, a detection device that can adapt to detection objects with various surface shapes is urgently needed. At the same time, for large-volume detection objects, they are easily limited by the detection window. In order to ensure that the spectrum collected by the detection object is representative, it is necessary to collect representative areas of the complete detection object. This requires the detection accessories to provide comprehensive detection positions and improve the quality of the collected spectrum. Utility Model Content

[0003] In order to solve the deficiencies existing in the background technology, the utility model provides a near-infrared solid detection device, including a main body detection component and two-end detection components, the main body detection component includes a mounting shell, the mounting shell is divided into an upper arc-shaped shell and a lower arc-shaped shell, the upper arc-shaped shell and the lower arc-shaped shell are provided with a first arc-shaped groove on one side opposite to each other, the two first arc-shaped grooves are combined to form a first mounting groove for fixing the main body of the object to be detected, upper horizontal fixing plates are provided on both sides of the upper arc-shaped shell, lower horizontal fixing plates are provided on both sides of the lower arc-shaped shell, adjusting screw holes are provided at both ends of the upper horizontal fixing plate along the axis direction of the mounting shell, the lower horizontal fixing plate is provided with connecting screw holes corresponding to the number of the positions of the adjusting screw holes, the adjusting screw holes and the connecting screw holes are threadedly connected by bolts, a plurality of threaded barrels are provided on the top of the upper horizontal fixing plate along the axis direction of the mounting shell, the bottom end of the threaded barrel extends out of the bottom end of the upper horizontal fixing plate, and an opening is penetrated through the extended end of the threaded barrel in the horizontal direction;

[0004] The two-end detection assembly includes two fixed shells, one side of the fixed shell is provided with a second arc groove, the other side of the fixed shell is provided with a detection port connected to the second arc groove, the two fixed shells are movably connected by a spring, the second arc grooves of the two fixed shells are opposite, and the two second arc grooves are spliced ​​to form a second installation groove for fixing the end of the object to be tested.

[0005] Preferably, there are three threaded barrels, and there are two adjusting screw holes at each end of the horizontal fixing plate, and the two adjusting screw holes are arranged in the horizontal direction.

[0006] Preferably, each horizontal fixing plate between the threaded cylinder and the mounting shell is provided with a scale.

[0007] Preferably, a support column is provided at the bottom of the lower horizontal fixing plate, and a bottom plate is fixed at the bottom of the support column.

[0008] Preferably, the inner wall of the first arc-shaped groove is provided with anti-slip rubber.

[0009] Preferably, a fixing screw hole is provided on the top of the fixed shell, and the fixing screw hole is connected to the detection port.

[0010] Preferably, a containing shell is fixed to the front end and the rear end of the fixed shell, and the two ends of the spring are respectively fixed in the containing shells of the two fixed shells.

[0011] Preferably, a fixing rod is fixed in the accommodating shell, and the end of the spring is welded to the fixing rod.

[0012] The utility model has the following beneficial effects:

[0013] 1. The main detection component and the detection components at both ends of the utility model are provided with mounting grooves, and the detection object is fixed by clamping the two parts, which can effectively fix large-volume, spherical, and cylindrical products in the near-infrared optical fiber detection process, and prevent the problem of large fluctuations in spectral signals and inaccurate detection results caused by product instability during spectral acquisition;

[0014] 2. The utility model is provided with two adjusting screw holes, which can fix the detection objects of different heights and widths; the fixed shells of the detection components at both ends are connected by springs, elastically clamping the detection objects, and can adapt to detection objects of different sizes; the utility model is highly flexible and expands the scope of application objects;

[0015] 3. The utility model is provided with a scale for measuring the detection distance, which can check the distance from the detection optical fiber to the detection point of the detection object in real time, facilitate the control of the detection optical distance, and improve the quality of spectrum acquisition;

[0016] 4. The utility model sets three detection points, upper, middle and lower, on both sides of the detection object. The detection points at appropriate positions can be selected according to the detection requirements to ensure that the detected area of ​​the detection object is representative. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the main detection component of the utility model;

[0018] Figure 2It is a top view of the main detection component of the utility model;

[0019] Figure 3 It is a side view of the main body detection component of the utility model;

[0020] Figure 4 This is the front view of the two-end detection assembly of the utility model;

[0021] Figure 5 It is a top view of the detection components at both ends of the utility model;

[0022] Figure 6 It is a side view of the detection components at both ends of the utility model.

[0023] Numbers in the figure: 1. Installation shell; 2. Anti-slip rubber; 3. Threaded barrel; 4. Adjustment screw hole; 5. Lower horizontal fixing plate; 6. Support column; 7. Bottom plate; 8. Upper horizontal fixing plate; 9. Fixed shell; 10. Fixed screw hole; 11. Fixed rod; 12. Detection port; 13. Spring; 14. Accommodation shell; 15. Scale. DETAILED DESCRIPTION

[0024] In order to make the present invention clearer and more understandable, the technical solution of the present invention is further described in detail below in combination with the accompanying drawings and embodiments. It should be understood that the given embodiment is only one of the implementation methods and does not represent all embodiments.

[0025] In this article, the terms "up, down, front, back, left, right" and the like are established based on the positional relationships shown in the drawings. Depending on the drawings, the corresponding positional relationships may also change accordingly. Therefore, they cannot be understood as absolute limitations on the scope of protection.

[0026] Combined with Figure 1 -Attached Figure 6A near-infrared solid detection device, comprising a main body detection component and two-end detection components, the main body detection component comprising a mounting shell 1, the mounting shell 1 is divided into an upper arc-shaped shell and a lower arc-shaped shell, the upper arc-shaped shell and the lower arc-shaped shell are provided with a first arc-shaped groove on one side opposite to each other, the two first arc-shaped grooves are combined to form a first mounting groove for fixing the main body of the object to be detected, the upper arc-shaped shell is provided with an upper horizontal fixing piece 8 on both sides, and the lower arc-shaped shell is provided with a lower horizontal fixing piece 5 on both sides, the upper horizontal fixing piece 8 is provided with an adjustment screw hole 4 at both ends along the axis direction of the mounting shell 1, and the lower horizontal fixing piece 5 is provided with a screw hole 4 for adjusting The number of screw holes 4 positions corresponds to the connecting screw holes, and the adjusting screw holes 4 and the connecting screw holes are threadedly connected by bolts. A plurality of threaded barrels 3 are provided on the top of the upper horizontal fixing plate 8 along the axial direction of the mounting shell 1, and the bottom end of the threaded barrel 3 extends out of the bottom end of the upper horizontal fixing plate 8. The extended end of the threaded barrel 3 can maintain a certain distance between the upper horizontal fixing plate 8 and the lower horizontal fixing plate 5, and the distance is the channel for the optical fiber to penetrate. The extended end of the threaded barrel 3 is penetrated by an opening in the horizontal direction, and the optical fiber can pass through the opening, so that the optical fiber can pass through the inside of the threaded barrel 3, and the optical fiber is fixed by screwing a bolt into the threaded barrel 3 and tightening the optical fiber with the bolt;

[0027] Specifically, a threaded hole is provided on the upper horizontal fixing plate 8, an external thread is provided on the outer wall of the threaded barrel 3, a fixing sleeve is threadedly connected to the outer wall of the threaded barrel 3, and an external thread matching the threaded hole is provided on the outer wall of the fixing sleeve. The length of the threaded barrel 3 extending out of the bottom end of the upper horizontal fixing plate 8 can be adjusted according to the height of the detection object, thereby adjusting the spacing between the upper horizontal fixing plate 8 and the lower horizontal fixing plate 5, so as to avoid a large gap between the extended end of the threaded barrel 3 and the lower horizontal fixing plate 5 when the height of the detection object is high when the length of the extended end of the threaded barrel 3 is fixed, so that the optical fiber cannot pass through the threaded barrel 3, thereby affecting the fixation of the optical fiber; the adjustment method of the threaded barrel 3 is: insert the threaded barrel 3 into the threaded hole, move the threaded barrel 3 to a suitable position according to the detection requirements, thread the fixing sleeve to the outer wall of the threaded barrel 3, and thread it into the threaded hole of the upper horizontal fixing plate 8.

[0028] The two-end detection assembly includes two fixed shells 9, one side of the fixed shells 9 is provided with a second arc groove, the other side of the fixed shells 9 is provided with a detection port 12 connected to the second arc groove, the two fixed shells 9 are movably connected by a spring 13, the second arc grooves of the two fixed shells 9 are opposite, and the two second arc grooves are spliced ​​to form a second installation groove for fixing the end of the object to be tested.

[0029] Specifically, there are three threaded barrels 3, and the three threaded barrels 3 correspond to three detection points. The detection points can be selected according to the detection requirements to ensure that the detected area is representative; there are two adjusting screw holes 4 at each end of the horizontal fixing plate, and the two adjusting screw holes 4 are arranged in the horizontal direction. The appropriate adjusting screw hole 4 can be selected for fixation according to the volume of the detection object. Specifically, when the volume of the detection object is small, the bolt can be screwed into the adjusting screw hole 4 close to the mounting shell 1. When the volume of the detection object is large, the radial ends of the detection object will extend out of a part of the mounting shell 1. At this time, the bolt screwed into the adjusting screw hole 4 close to the mounting shell 1 may be hindered by the detection object. Therefore, when the volume of the detection object is large, the bolt can be screwed into the adjusting screw hole 4 away from the mounting shell 1 to meet the fixation requirements of detection objects of different volume sizes.

[0030] Specifically, each of the horizontal fixing plates between the threaded barrel 3 and the mounting housing 1 is provided with a scale 15, which facilitates observation of the distance between the optical fiber and the detection object, thereby facilitating adjustment of the optical distance. For easy observation, the portion of the upper horizontal fixing plate 8 where the scale 15 is provided can be made of a transparent material, such as optical glass, or an observation notch can be started on one side of the portion where the scale 15 is provided.

[0031] Specifically, a support column 6 is provided at the bottom of the lower horizontal fixing plate 5 , and a bottom plate 7 is fixed to the bottom of the support column 6 . The support column 6 and the bottom plate 7 are used to fix and support the main body detection component.

[0032] Specifically, the inner wall of the first arc groove is provided with an anti-skid rubber 2, which can prevent the detection object from slipping out of the first mounting groove and better fix the detection object. In addition to the anti-skid rubber 2, the mounting housing 1, the threaded cylinder 3, the upper horizontal fixing plate 8, the lower horizontal fixing plate 5 and the fixing housing 9 are all made of stainless steel.

[0033] Specifically, a fixing screw hole 10 is provided on the top of the fixing shell 9, and the fixing screw hole 10 is connected to the detection port 12. A bolt can be threaded in the fixing screw hole 10, and the bolt is tightened against the optical fiber passing through the detection port 12 by turning the bolt, thereby achieving fixation of the optical fiber.

[0034] Specifically, a receiving shell 14 is fixed to the front end and the rear end of the fixed shell 9 , and two ends of the spring 13 are respectively fixed in the receiving shells 14 of the two fixed shells 9 .

[0035] Specifically, a fixing rod 11 is fixed in the accommodating shell 14 , and an end of the spring 13 is welded to the fixing rod 11 .

[0036] When conducting a main body inspection of the inspection object, unscrew the bolts in the connecting screw hole and the adjusting screw hole 4, open the upper horizontal fixing plate 8 and the upper arc-shaped shell, place the inspection object in the first arc-shaped groove, select the adjusting screw hole 4 at a suitable position according to the volume of the inspection object and screw in the bolt, connect the upper horizontal fixing plate 8 and the lower horizontal fixing plate 5, so that the inspection object is fixed in the first mounting groove; connect one end of the diffuse reflection optical fiber to the near-infrared spectrometer, and insert the other end through the gap between the upper horizontal fixing plate 8 and the lower horizontal fixing plate 5, pass the optical fiber through the threaded barrel 3 through the opening of the threaded barrel 3, approach the inspection object, check the scale 15, determine the optical distance, screw the bolt into the threaded barrel 3, tighten the bolt to fix the optical fiber, and turn on the near-infrared spectrometer to collect the spectrum.

[0037] When testing both ends of the test object, pull the two fixed shells 9 to move them away from each other, the spring 13 is stretched, and the test object is placed between the second arc grooves of the two fixed shells 9. Loosen the fixed shells 9 to make the two fixed shells 9 approach each other under the elasticity of the spring 13. The fixed shells 9 clamp the test object to fix it in the second mounting groove; connect one end of the diffuse reflection optical fiber to the near-infrared spectrometer, and insert the other end from the detection port 12 and approach the test object. Screw a bolt into the fixing screw hole 10, tighten the bolt to fix the optical fiber, and turn on the near-infrared spectrometer to collect the spectrum.

[0038] The detection objects include but are not limited to food, medicine (such as the root medicinal material Rehmannia glutinosa), health products, cosmetics, etc.

[0039] Although embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A near-infrared solid detection device, characterized in that: The invention comprises a main body detection component and two end detection components, wherein the main body detection component comprises a mounting shell (1), wherein the mounting shell (1) is divided into an upper arc-shaped shell and a lower arc-shaped shell, wherein the upper arc-shaped shell and the lower arc-shaped shell are provided with a first arc-shaped groove on opposite sides, wherein the two first arc-shaped grooves are combined to form a first mounting groove for fixing the main body of the object to be detected, wherein upper horizontal fixing plates (8) are provided on both sides of the upper arc-shaped shell, and lower horizontal fixing plates (5) are provided on both sides of the lower arc-shaped shell, wherein adjusting screw holes (4) are provided on both ends of the upper horizontal fixing plate (8) along the axis direction of the mounting shell (1), wherein the lower horizontal fixing plate (5) is provided with connecting screw holes corresponding to the number of positions of the adjusting screw holes (4), wherein the adjusting screw holes (4) and the connecting screw holes are threadedly connected by bolts, wherein a plurality of threaded barrels (3) are provided on the top of the upper horizontal fixing plate (8) along the axis direction of the mounting shell (1), wherein the bottom end of the threaded barrel (3) extends out of the bottom end of the upper horizontal fixing plate (8), and an opening is provided through the extended end of the threaded barrel (3) in the horizontal direction; The two-end detection assembly comprises two fixed housings (9), one side of the fixed housings (9) is provided with a second arc groove, the other side of the fixed housings (9) is provided with a detection port (12) connected to the second arc groove, the two fixed housings (9) are movably connected via a spring (13), the second arc grooves of the two fixed housings (9) are opposite to each other, and the two second arc grooves are combined to form a second mounting groove for fixing the end of the object to be detected.

2. A near-infrared solid detection device according to claim 1, characterized in that: There are three threaded barrels (3), and there are two adjusting screw holes (4) at each end of the horizontal fixing plate, and the two adjusting screw holes (4) are arranged in the horizontal direction.

3. A near-infrared solid detection device according to claim 1 or 2, characterized in that: A scale (15) is provided on the horizontal fixing plate between each of the threaded cylinders (3) and the mounting housing (1).

4. A near-infrared solid detection device according to claim 1, characterized in that: A support column (6) is provided at the bottom of the lower horizontal fixing plate (5), and a bottom plate (7) is fixed at the bottom of the support column (6).

5. A near-infrared solid detection device according to claim 1, characterized in that: The inner wall of the first arc-shaped groove is provided with anti-slip rubber (2).

6. A near-infrared solid detection device according to claim 1, characterized in that: A fixing screw hole (10) is provided on the top of the fixing housing (9), and the fixing screw hole (10) is communicated with the detection port (12).

7. A near-infrared solid detection device according to claim 1, characterized in that: The front end and the rear end of the fixed shell (9) are both fixed with a containing shell (14), and the two ends of the spring (13) are respectively fixed in the containing shells (14) of the two fixed shells (9).

8. A near-infrared solid detection device according to claim 7, characterized in that: A fixing rod (11) is fixed inside the accommodating shell (14), and an end of the spring (13) is welded to the fixing rod (11).

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