Infrared spectrophotometer for measuring oil

Abstract

The utility model discloses an infrared spectrophotometric oil measuring instrument which comprises a rack body, a bin door cover plate, a display operation screen, a driving unit, a shifting wheel, a trigger detection unit and a sample bottle, a body opening is formed in one side of the upper end face of a shell of the rack body, and one side of the bin door cover plate is connected to the body opening through a shaft. The display operation screen can be embedded into one side of the shell of the rack body; the shifting wheel is arranged above the driving unit; the trigger detection unit is arranged below the shifting wheel; a plurality of sample bottle placing notches are formed in the edge of the shifting wheel, and sample bottles are clamped in the sample bottle placing notches; the bottom of the sample bottle can trigger a microswitch arranged in the triggering detection unit, the starting driving unit drives the stirring wheel to rotate, and infrared detection of short, medium and long wavelengths is carried out on the sample bottle. The trigger detection unit of the bin door cover plate and the poked wheel shade reduces light source interference, influences the detection accuracy, and also prevents impurities from entering and adhering to electronic components, and influences the instrument performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil detection, and in particular relates to an infrared spectrophotometer for measuring oil. Background Art

[0002] Infrared spectrophotometers are instruments that use infrared spectrophotometry to determine petroleum and animal and vegetable oils. They provide a simple and rapid method for detecting petroleum and animal and vegetable oils in domestic and industrial wastewater, as well as for detecting cooking fume emissions from the catering industry. Existing infrared spectrophotometers are not portable; their large door panels offer poor light shielding, and when used outdoors, they are susceptible to interference from natural infrared light, affecting accuracy. The large door panels also allow dust and liquids to easily enter the instrument, where they can adhere to electronic components and affect performance. Summary of the Invention

[0003] The present invention aims to solve the above problems and provides an infrared spectrophotometer for oil measurement.

[0004] An infrared spectrophotometer for oil testing comprises: a frame body 1, a compartment door cover 2, a display operation screen 3, a driving unit 4, a toggle wheel 5, a trigger detection unit 6, and a sample bottle 7; a body opening 11 is provided on one side of the upper end surface of the shell of the frame body 1, and one side of the compartment door cover 2 is axially connected to the body opening 11; a screen display groove 13 is provided on one side of the shell of the frame body 1, and the display operation screen 3 can be embedded in the screen display groove 13; a detection cavity 14 and a driving element cavity 15 are provided in the frame body 1, and the detection cavity 14 and the driving element cavity 15 are separated by a partition plate 16; the toggle wheel 5 is axially connected to the detection cavity 14; the driving unit 4 is provided in the driving element cavity 15; the driving unit 4 drives the toggle wheel 5; the trigger detection unit 6 is provided below the toggle wheel 5; a plurality of sample bottle placement slots 52 are provided on the edge of the toggle wheel 5, and the sample bottle 7 is clamped in the sample bottle placement slot 52; the trigger detection unit 6 can perform infrared detection of the sample bottle 7 at three wavelengths: short, medium and long.

[0005] The inner wall of the shell of the rack body 1 is provided with a light-reducing material; one side of the door cover 2 is axially connected to the body opening 11, and the door magnet 111 can magnetically attract the edge of the door cover 2; a light shielding plate 21 is provided on the door cover 2; the door cover 2 is rectangular, and its short side is 3 to 4 times the length of the diameter of the sample bottle 7.

[0006] The driving unit 4 includes: a driving shaft 41, a driving shaft pulley 42, a main driving wheel 43, a pulley belt 44, and a driving servo motor 45; a toggle wheel shaft connection portion 161 and a sliding annular flange 162 are provided in the middle of the partition plate 16; the axis center line of the sliding annular flange 162 coincides with the axis center line of the toggle wheel shaft connection portion 161; the driving shaft 41 is axially connected to the toggle wheel shaft connection portion 161; a polygonal column 411 is provided at the upper end of the driving shaft 41, and the lower end of the driving shaft 41 extends to the lower end surface of the partition plate 16; the driving shaft pulley 42 is fixed to the lower end portion of the driving shaft 41; the driving servo motor 45 is fixed in the driving element cavity 15; the main driving wheel 43 is fixed on the power output shaft of the driving servo motor 45; the driving shaft pulley 42 and the main driving wheel 43 are connected by a pulley belt 44.

[0007] The center of the toggle wheel 5 is provided with an axle shaft 51; a multi-faceted groove 511 is provided in the axle shaft 51; the multi-faceted groove 511 is sleeved on the multi-faceted column 411; the multi-faceted groove 511 and the multi-faceted column 411 are transitionally matched; the edge of the toggle wheel 5 is provided with multiple sample bottle placement slots 52; the multiple sample bottle placement slots 52 are arranged in a ring array on the edge of the toggle wheel 5.

[0008] The trigger detection unit 6 includes: a bottle-in detection switch 61, a first detection trigger switch 62, a first detection head, a second detection trigger switch 64, a second detection head, a third detection trigger switch 66, a third detection head, a fourth detection trigger switch 68, and a fourth detection head; the bottle-in detection switch 61 is arranged directly below the main body opening 11; the first detection trigger switch 62, the second detection trigger switch 64, the third detection trigger switch 66, and the fourth detection trigger switch 68 are arrayed on the sliding annular flange 162; the first detection trigger switch 62 is arranged on the detection normal line of the first detection head; the second detection trigger switch 64 is arranged on the detection normal line of the second detection head; the third detection trigger switch 66 is arranged on the detection normal line of the third detection head; and the fourth detection trigger switch 68 is arranged on the detection normal line of the fourth detection head.

[0009] The first detection head can perform short-wave infrared oil detection with a wavelength between 1.4 and 3 microns; the second detection head can perform medium-wave infrared oil detection with a wavelength between 3 and 8 microns; the third detection head can perform long-wave infrared oil detection with a wavelength between 8 and 15 microns; and the fourth detection head can perform ultraviolet oil detection with a wavelength between 200 and 360 nanometers.

[0010] This technical solution provides an infrared spectrophotometer for oil testing, comprising: a housing 1, a compartment cover 2, a display screen 3, a drive unit 4, a toggle wheel 5, a trigger detection unit 6, and a sample bottle 7. The housing 1 has a housing opening 11 on one side of its upper end surface, and the compartment cover 2 is pivotally connected to the housing opening 11. The display screen 3 can be embedded in one side of the housing 1. The toggle wheel 5 is located above the drive unit 4. The trigger detection unit 6 is located below the toggle wheel 5. The edge of the toggle wheel 5 is provided with multiple sample bottle placement notches 52, in which the sample bottle 7 is clamped. The bottom of the sample bottle 7 triggers a microswitch in the trigger detection unit 6, activating the drive unit 4 to rotate the toggle wheel 5 and perform infrared detection on the sample bottle 7 at three wavelengths: short, medium, and long. The compartment cover 2 and the trigger detection unit 6, which is shielded by the toggle wheel 5, reduce interference from natural light sources that could affect detection accuracy and prevent impurities from entering the instrument and adhering to electronic components, affecting instrument performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an overall schematic diagram of an infrared spectrophotometer for oil testing in the present invention;

[0012] Figure 2 This is a partial cross-sectional structural diagram of an infrared spectrophotometer for oil testing in the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of a toggle wheel and a detection unit of an infrared spectrophotometer for oil testing in the utility model;

[0014] Figure 4 This is a schematic diagram of the structure of a drive unit of an infrared spectrophotometer for oil testing in the utility model;

[0015] In the figure: 1. Rack body, 11. Body opening, 111. Door magnet, 12. Rubber foot pad, 13. Display groove, 14. Detection cavity, 15. Drive element cavity, 16. Partition shelf, 161. Toggle wheel shaft connection, 162. Sliding annular flange, 18. Handle, 2. Door cover, 21. Shade, 3. Display operation screen, 31. Operation button, 4. Drive unit, 41. Drive shaft, 411. Polygonal prism, 42. Drive shaft pulley, 421. Bolt, 43. Main drive wheel, 44. Pulley belt, 45. Drive servo motor, 5 , toggle wheel, 51, wheel axle shaft, 511, multi-sided groove, 52, sample bottle placement slot, 6, trigger detection unit, 61, bottle inlet detection switch, 62, first detection trigger switch, 631, first infrared emitter, 632, first infrared receiver, 64, second detection trigger switch, 651, second infrared emitter, 652, second infrared receiver, 66, third detection trigger switch, 671, third infrared emitter, 672, third infrared receiver, 68, fourth detection trigger switch, 691, ultraviolet emitter, 692, ultraviolet receiver. DETAILED DESCRIPTION

[0016] The technical solution will be further clearly and completely described below in conjunction with the accompanying drawings of the technical solution. The described embodiments are only a part of the technical solution, not all embodiments. Based on the technical solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this utility model. Example

[0017] See also Figures 1 to 4 As shown, an infrared spectrophotometer for oil testing includes: a frame body 1, a compartment door cover 2, a display operation screen 3, a drive unit 4, a toggle wheel 5, and a trigger detection unit 6;

[0018] The inner wall of the housing of the frame body 1 is provided with a light-reducing material or a completely light-blocking material; a body opening 11 is provided on one side of the upper end surface of the housing of the frame body 1, and a door magnet 111 is provided at the front end of the body opening 11. One side of the door cover 2 is axially connected to the body opening 11, and the door magnet 111 can magnetically attract the edge of the door cover 2;

[0019] The four corners of the bottom end of the frame body 1 are provided with rubber pads 12;

[0020] A screen display groove 13 is provided on one side of the housing of the frame body 1; the display operation screen 3 can be embedded in the screen display groove 13; that is, the upper end of the display operation screen 3 is axially connected to the upper part of the screen display groove 13; and an operation button 31 is provided on the display operation screen 3.

[0021] The upper portion of the frame body 1 is provided with a detection cavity 14; the lower portion of the frame body 1 is provided with a drive element cavity 15; the detection cavity 14 and the drive element cavity 15 are separated by a partition plate 16; the drive unit 4 and the main control board of the device are provided in the drive element cavity 15;

[0022] A shading plate 21 is provided on the inner side of the door cover 2 ; the shading plate 21 prevents stray light from directly entering the detection cavity 14 ; the door cover 2 is rectangular, and its short side is 3 to 4 times the length of the diameter of the sample bottle 7 .

[0023] A handle 18 is also provided on the upper portion of the housing of the frame body 1 .

[0024] A toggle wheel shaft connection portion 161 is provided in the middle of the partition plate 16 ; a sliding annular flange 162 is provided on the upper end surface of the partition plate 16 ; the axis of the sliding annular flange 162 coincides with the axis of the toggle wheel shaft connection portion 161 .

[0025] The driving unit 4 includes: a driving shaft 41, a driving shaft pulley 42, a main driving wheel 43, a pulley belt 44, and a driving servo motor 45;

[0026] The drive shaft 41 is axially connected to the toggle wheel shaft connection portion 161; a polygonal column 411 is provided at the upper end of the drive shaft 41, and the lower end of the drive shaft 41 extends to the lower end surface of the partition plate 16; the drive shaft pulley 42 is fixed to the lower end of the drive shaft 41 by a bolt 421; the drive servo motor 45 is fixed in the drive element cavity 15; the main drive wheel 43 is fixed on the power output shaft of the drive servo motor 45; the drive shaft pulley 42 and the main drive wheel 43 are connected by a pulley belt 44; that is, the servo motor 45 drives the drive shaft 41 to rotate.

[0027] The toggle wheel 5 is a rotating member, with a wheel shaft 51 provided at the center of the toggle wheel 5; a multi-faceted groove 511 is provided in the wheel shaft 51; the multi-faceted groove 511 is sleeved on the multi-faceted column 411; the multi-faceted groove 511 and the multi-faceted column 411 are in transitional fit; a plurality of sample bottle placement notches 52 are provided on the edge of the toggle wheel 5; the plurality of sample bottle placement notches 52 are arranged in a coaxial annular array;

[0028] The trigger detection unit 6 includes: a bottle inlet detection switch 61, a first detection trigger switch 62, a first detection head, a second detection trigger switch 64, a second detection head, a third detection trigger switch 66, a third detection head, a fourth detection trigger switch 68, and a fourth detection head;

[0029] The bottle-in detection switch 61, first detection trigger switch 62, second detection trigger switch 64, third detection trigger switch 66, and fourth detection trigger switch 68 are all micro-trigger switches. The sample bottle 7 can sequentially trigger the bottle-in detection switch 61, first detection trigger switch 62, second detection trigger switch 64, third detection trigger switch 66, and fourth detection trigger switch 68.

[0030] The bottle inlet detection switch 61 is located just below the main body opening 11; the bottle inlet detection switch 61 triggers the toggle wheel 5 to rotate;

[0031] The first detection head includes: a first infrared emitter 631 and a first infrared receiver 632. The first infrared emitter 631 emits short-wave infrared (SWIR) with a wavelength between 1.4 and 3 microns; the first detection trigger switch 62 is located on the sliding annular flange 162 between the first infrared emitter 631 and the first infrared receiver 632; the sample bottle 7 can trigger the first detection trigger switch 62, and the first detection trigger switch 62 starts the short-wave infrared detection of the oil body of the first detection head.

[0032] The second detection head includes: a second infrared emitter 651 and a second infrared receiver 652. The second infrared emitter 651 emits medium-wave infrared (MWIR) with a wavelength between 3 and 8 microns. The second detection trigger switch 64 is located on the sliding annular flange 162 between the second infrared emitter 651 and the second infrared receiver 652. The sample bottle 7 can trigger the second detection trigger switch 64, and the medium-wave infrared detection of the oil body by the second detection head is started through the second detection trigger switch 64.

[0033] The third detection head includes: a third infrared emitter 671 and a third infrared receiver 672. The third infrared emitter 671 emits long-wave infrared (LWIR) with a wavelength between 8 and 15 microns. The third detection trigger switch 66 is located on the sliding annular flange 162 between the third infrared emitter 671 and the third infrared receiver 672. The sample bottle 7 can trigger the third detection trigger switch 66, and the third detection trigger switch 66 starts the long-wave infrared detection of the oil body by the third detection head.

[0034] The fourth detection head includes: an ultraviolet emitter 691 and an ultraviolet receiver 692, the emission wavelength of the ultraviolet emitter 691 is between 200 and 360 nanometers; the fourth detection trigger switch 68 is located on the sliding annular flange 162 between the ultraviolet emitter 691 and the ultraviolet receiver 692; the sample bottle 7 can trigger the fourth detection trigger switch 68, and the fourth detection trigger switch 68 starts the fourth detection head oil body ultraviolet detection.

Claims

1. An infrared spectrophotometer for measuring oil, comprising: A frame body (1), a door cover (2), a display operation screen (3), a drive unit (4), a toggle wheel (5), a trigger detection unit (6), and a sample bottle (7); characterized in that: one side of the upper end surface of the shell of the frame body (1) is provided with a body opening (11), and one side of the door cover (2) is axially connected to the body opening (11); one side of the shell of the frame body (1) is provided with a screen groove (13), and the display operation screen (3) can be embedded in the screen groove (13); a detection cavity (14) and a drive element cavity (15) are provided in the frame body (1) The detection cavity (14) and the driving element cavity (15) are separated by a partition plate (16); the toggle wheel (5) is connected to the detection cavity (14); the driving unit (4) is arranged in the driving element cavity (15); the driving unit (4) drives the toggle wheel (5); the trigger detection unit (6) is arranged below the toggle wheel (5); the edge of the toggle wheel (5) is provided with a plurality of sample bottle placement notches (52), and the sample bottle (7) is clamped in the sample bottle placement notches (52); the trigger detection unit (6) can perform infrared detection of the sample bottle (7) at three wavelengths: short, medium and long.

2. The infrared spectrophotometer for oil testing according to claim 1, characterized in that: A light-reducing material is provided on the inner wall of the housing of the frame body (1); one side of the door cover (2) is axially connected to the body opening (11); the door magnet (111) can magnetically attract the edge of the door cover (2); and a light shielding plate (21) is provided on the door cover (2).

3. The infrared spectrophotometer for oil testing according to claim 2, characterized in that: The door cover (2) is rectangular, and its short side is 3 to 4 times the length of the diameter of the sample bottle (7).

4. The infrared spectrophotometer for oil testing according to claim 3, characterized in that: The driving unit (4) comprises: a driving shaft (41), a driving shaft pulley (42), a main driving wheel (43), a pulley belt (44), and a driving servo motor (45); a toggle wheel shaft connection portion (161) and a sliding annular flange (162) are provided in the middle of the partition plate (16); the axis of the sliding annular flange (162) coincides with the axis of the toggle wheel shaft connection portion (161); the driving shaft (41) is axially connected to the toggle wheel shaft connection portion (161); A polygonal column (411) is provided at the upper end of the drive shaft (41), and the lower end of the drive shaft (41) extends to the lower end surface of the partition plate (16); a drive shaft pulley (42) is fixed to the lower end of the drive shaft (41); a drive servo motor (45) is fixed in the drive element cavity (15); a main drive wheel (43) is fixed to the power output shaft of the drive servo motor (45); and the drive shaft pulley (42) and the main drive wheel (43) are connected via a pulley belt (44).

5. The infrared spectrophotometer for oil testing according to claim 4, characterized in that: The center of the toggle wheel (5) is provided with a wheel shaft (51); a multi-faceted groove (511) is provided in the wheel shaft (51); the multi-faceted groove (511) is sleeved on the multi-faceted column (411); the multi-faceted groove (511) and the multi-faceted column (411) are transitionally matched; and a plurality of sample bottle placement notches (52) are arranged in a circular array on the edge of the toggle wheel (5).

6. The infrared spectrophotometer for oil measurement according to claim 5, characterized in that: The trigger detection unit (6) comprises: a bottle-in detection switch (61), a first detection trigger switch (62), a first detection head, a second detection trigger switch (64), a second detection head, a third detection trigger switch (66), a third detection head, a fourth detection trigger switch (68), and a fourth detection head; the bottle-in detection switch (61) is arranged directly below the main body opening (11); the first detection trigger switch (62), the second detection trigger switch (64), the third detection trigger switch (66), and the fourth detection trigger switch (68) are arrayed on the sliding annular flange (162); the first detection trigger switch (62) is arranged on the detection normal line of the first detection head; the second detection trigger switch (64) is arranged on the detection normal line of the second detection head; the third detection trigger switch (66) is arranged on the detection normal line of the third detection head; and the fourth detection trigger switch (68) is arranged on the detection normal line of the fourth detection head.

7. The infrared spectrophotometer for oil testing according to claim 6, characterized in that: The first detection head can perform short-wave infrared oil detection with a wavelength between 1.4 and 3 microns; the second detection head can perform medium-wave infrared oil detection with a wavelength between 3 and 8 microns; the third detection head can perform long-wave infrared oil detection with a wavelength between 8 and 15 microns; and the fourth detection head can perform ultraviolet oil detection with a wavelength between 200 and 360 nanometers.

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