CN111929258B - Food chemical pollution detection device - Google Patents
Food chemical pollution detection device Download PDFInfo
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- CN111929258B CN111929258B CN202010902207.3A CN202010902207A CN111929258B CN 111929258 B CN111929258 B CN 111929258B CN 202010902207 A CN202010902207 A CN 202010902207A CN 111929258 B CN111929258 B CN 111929258B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Abstract
The invention discloses a food chemical pollution detection device, and relates to the technical field of food safety detection. The invention comprises a spectrophotometric box, an operation block and a display panel, wherein a limiting frame and a light emitting frame are arranged in the spectrophotometric box, and a magnetic block is arranged between the limiting frame and the light emitting frame. According to the invention, the limiting frames are annularly and fixedly arranged in the working groove by taking the light emitting frame as a circle center, so that the traditional cuvette adjusting frame moving and adjusting structure is changed, and the situation that the cuvette vibrates to cause sample liquid to splash and pollute an instrument in the moving process is avoided; by arranging the magnetic block and the magnetic plate and utilizing magnetic attraction cooperation, the detection position can be accurately positioned when the optical frame rotates and translocates; meanwhile, by arranging the shading arc plate and the telescopic slide rod, the telescopic slide rod is driven to stretch and fold by utilizing the meshing between the gear and the rack and the magnetic attraction matching between the magnetic block and the magnetic plate, so that the shading arc plate shields the light source in the idle time period of the light source, and the measured data is prevented from being recorded in the process.
Description
Technical Field
The invention belongs to the technical field of food safety detection, and particularly relates to a food chemical pollution detection device.
Background
In food which is contacted and eaten in daily life, the food is polluted due to careless negligence in the links of production, packaging, transportation, preservation, eating and the like, chemical pollution is more serious than biological pollution in the polluted food, and life danger is possibly brought to eating under the condition that people do not know, so that timely detection of chemical pollutants in the food is an important part in the process of food safety detection.
In the prior art, there are many methods for accurately analyzing and detecting chemical pollutants in food, wherein a method for analyzing qualitative and quantitative properties and physicochemical properties of different chemical pollutants by using a spectrophotometer is common, and when a common spectrophotometer is used for measuring samples with different components, due to the problem of structural design, the measured data can also deviate due to the fact that a light source is in a vacant state within the transition time of switching a cuvette; simultaneously, the cell alignment jig often is comparatively mechanical when removing, often can make the appearance liquid spill in the cell, pollutes and together, causes the condition that once can't remove the fixed point position simultaneously easily, and then influences the testing result, consequently, we design a food chemical contamination detection device to above-mentioned problem.
Disclosure of Invention
The invention aims to provide a food chemical pollution detection device, which solves the problem that errors are easy to occur in the detection process of instruments such as a conventional spectrophotometer and the like.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a food chemical pollution detection device, which comprises a working area and a control area, wherein the working area is a spectrophotometric box, the control area comprises an operation block and a display panel, the display panel is connected with a computer and used for displaying and recording measured data, the spectrophotometric box is of a groove box body structure, the operation block is of a hollow structure, the spectrophotometric box and the operation block are of an integral structure, a cavity is arranged in the spectrophotometric box, the spectrophotometric box and the operation block are mutually communicated through the cavity, and the operation block is in hinged fit with the display panel;
a working groove is formed in one surface of the spectrophotometric box, a plurality of limiting frames are connected to the surface of the working groove in a clamping mode and used for mounting and fixing the cuvette, each limiting frame comprises a limiting plate and a supporting plate, each limiting plate is of a U-shaped plate structure, and the supporting plates are adaptive to the structures and positions of the limiting plates;
a pressure spring is arranged between the supporting plate and the bottom surface of the working groove, the supporting plate is in sliding fit with the limiting plate and is in electrical fit with the bottom surface of the working groove, a plurality of magnetic blocks are adhered to the bottom surface of the working groove, and the positions and the number of the magnetic blocks are matched with those of the limiting frame;
the surface of the working groove is provided with a light emitting rack, and the plurality of limiting racks and the plurality of magnetic blocks are in annular array by taking the light emitting rack as a circle center; the light emitting frame is in rotary fit with the working groove and comprises a light emitting head, a limiting rotary seat and a transmission shaft, the light emitting head is communicated with the limiting rotary seat, and the transmission shaft extends to the cavity.
Furthermore, a laser emitter is installed on one side surface of the light emitting head, a rotating rod is installed on one end surface of the light emitting head, a shading arc plate is adhered to one surface of the rotating rod, the shading arc plate is matched with the structure of the light emitting head, and a gear is adhered to the other surface of the rotating rod, extends into the light emitting head and is matched with the light emitting frame in a rotating mode.
Furthermore, a telescopic slide rod is installed on one side face of the limiting rotary seat, a rack is adhered to one surface of the telescopic slide rod and extends to the inside of the limiting rotary seat, the rack is meshed with the gear, and the rack is in sliding fit with the limiting rotary seat.
Furthermore, a magnetic plate is adhered to the other surface of the telescopic slide rod, a spring is adhered between the magnetic plate and the telescopic slide rod, and the magnetic plate and the magnetic block are matched in a magnetic attraction mode and can be used for accurately positioning the rotating adjustment of the light emitting rack.
Furthermore, a plurality of fixed clamping grooves are formed in the surface of the working groove, one side face of each fixed clamping groove is communicated with the outside of the working groove, and a fixed buckle plate is installed on the surface of each fixed clamping groove.
Further, work groove one surface and articulate there is the shading lid, the shading lid suits with the size and the structure homogeneous phase in work groove, shading lid one surface adhesion has a plurality of connection bullet boards, connect bullet board and fixed slot buckle cooperation, and both electric property cooperation each other, another surface mounting of shading lid has a plurality of pilot lamps, the pilot lamp is with being connected bullet board electric connection, the pilot lamp suits with the position and the quantity homogeneous phase of spacing.
Further, a driving shaft is installed on one surface of the operation block, an operation rotary wheel is adhered to one surface of the driving shaft, the driving shaft extends into the cavity, a transmission belt is installed on the peripheral side face of the driving shaft, and the transmission belt is in contact fit with the transmission shaft.
Further, the drive shaft passes through drive belt transmission cooperation with the transmission shaft, pilot lamp and layer board electric property cooperation, after the layer board pressurized, switch on the pilot lamp circuit, can show the position of sample and cell definitely, and the testing personnel of being convenient for adjust and switch the detection sample.
The invention has the following beneficial effects:
according to the invention, the limiting frames are annularly and fixedly arranged in the working groove by taking the light emitting frame as a circle center, so that the traditional cuvette adjusting frame moving and adjusting structure is changed, and the situation that the cuvette vibrates to cause sample liquid to splash and pollute an instrument in the moving process is avoided; by arranging the magnetic block and the magnetic plate and utilizing magnetic attraction cooperation, the detection position can be accurately positioned when the optical frame rotates and translocates; simultaneously through setting up shading arc board and flexible slide bar, utilize the meshing between gear and the rack and the cooperation of inhaling of magnetism between magnetic path and the magnetic sheet to drive flexible slide bar and stretch out and draw back folding, make shading arc board in the time quantum that the light source was vacant, can revolve to laser emitter's position, form the shadow region, shelter from the light source, avoid the data of survey at this in-process to be noted.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a chemical contamination detection apparatus for food according to the present invention;
FIG. 2 is a front view of a chemical contamination detecting apparatus for food according to the present invention;
FIG. 3 is a schematic structural view of section A-A in FIG. 2;
FIG. 4 is a schematic structural view of section B-B of FIG. 3;
FIG. 5 is a partial view of portion D of FIG. 4;
FIG. 6 is a schematic structural view of section C-C of FIG. 3;
fig. 7 is a partial view of portion E of fig. 6.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a spectrophotometric box, 2-an operation block, 3-a display panel, 101-a working groove, 102-a limiting frame, 1021-a limiting plate, 1022-a supporting plate, 1023-a pressure spring, 103-a magnetic block, 104-a light emitting frame, 1041-a light emitting head, 1042-a limiting rotary base, 1043-a transmission shaft, 1044-a shading arc plate, 1045-a gear, 1046-a telescopic sliding rod, 1047-a rack, 1048-a magnetic plate, 1049-a spring, 1011-a fixed clamping groove, 1012-a fixed buckle, 105-a shading cover, 1051-a connection elastic plate, 201-a driving shaft, 2011-an operation rotary wheel and 2012-a transmission belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, the present invention is a food chemical contamination detection device, which comprises a working area and a control area, wherein the working area is a spectrophotometric box 1, the control area comprises an operation block 2 and a display panel 3, the display panel 3 is connected with a computer and used for displaying and recording measured data, the spectrophotometric box 1 is of a groove box body structure, the operation block 2 is of a hollow structure, the spectrophotometric box 1 and the operation block 2 are of an integral structure, a cavity is arranged inside the spectrophotometric box 1, the spectrophotometric box 1 and the operation block 2 are communicated with each other through the cavity, and the operation block 2 and the display panel 3 are in hinged fit;
a working groove 101 is formed in one surface of the spectrophotometric box 1, a plurality of limiting frames 102 are connected to one surface of the working groove 101 in a clamping mode and used for mounting and fixing the cuvette, each limiting frame 102 comprises a limiting plate 1021 and a supporting plate 1022, the limiting plate 1021 is of a U-shaped plate structure, and the supporting plate 1022 is matched with the limiting plate 1021 in structure and position;
a pressure spring 1023 is installed between the supporting plate 1022 and the bottom surface of the working groove 101, the supporting plate 1022 is in sliding fit with the limiting plate 1021 and is electrically matched with the bottom surface of the working groove 101, a plurality of magnetic blocks 103 are adhered to the bottom surface of the working groove 101, and the positions and the number of the magnetic blocks 103 are matched with those of the limiting frame 102;
the bottom surface of the working groove 101 is provided with an emitting light frame 104, and the plurality of limiting frames 102 and the plurality of magnetic blocks 103 are in annular array by taking the emitting light frame 104 as a circle center; the light emitting frame 104 is rotatably matched with the working groove 101, the light emitting frame 104 comprises a light emitting head 1041, a limiting rotary seat 1042 and a transmission shaft 1043, the light emitting head 1041 is communicated with the limiting rotary seat 1042, and the transmission shaft 1043 extends to the cavity.
Wherein, a laser emitter is installed to a side of the optical head 1041, a swing arm is installed to an end face of the optical head 1041, a shading arc 1044 is adhered to one surface of the swing arm, the shading arc 1044 is adapted to the structure of the optical head 1041, a gear 1045 is adhered to the other surface of the swing arm, and extends to the inside of the optical head 1041, and is in rotary fit with the optical transmission frame 104.
A telescopic slide bar 1046 is installed on one side surface of the limiting rotary seat 1042, a rack 1047 is adhered to one surface of the telescopic slide bar 1046 and extends to the inside of the limiting rotary seat 1042, the rack 1047 is meshed with a gear 1045, and the rack 1047 is in sliding fit with the limiting rotary seat 1042.
Wherein, another surface adhesion of flexible slide bar 1046 has magnetic sheet 1048, and it has spring 1049 to adhere between magnetic sheet 1048 and the flexible slide bar 1046, and magnetic sheet 1048 and the cooperation of magnetic block 103 magnetism are inhaled, can be for emitting accurate location of the rotation regulation of optical frame 104.
Wherein, a plurality of fixed draw-in grooves 1011 are seted up on a surface of work groove 101, and a fixed draw-in groove 1011 side communicates with the work groove 101 outside, and a fixed buckle 1012 is installed to a fixed draw-in groove 1011 surface.
Wherein, work groove 101 one surface articulates there is shading lid 105, shading lid 105 suits with the size and the structure homogeneous phase of work groove 101, shading lid 105 one surface adhesion has a plurality of connection bullet boards 1051, connects bullet board 1051 and fixed slot 1011 snap-fit, and both electric property cooperation each other, shading lid 105 another surface mounting has a plurality of pilot lamps, pilot lamp and connection bullet board 1051 electric connection, the pilot lamp suits with the position and the quantity homogeneous phase of spacing frame 102.
The driving shaft 201 is installed on one surface of the operation block 2, the operation rotating wheel 2011 is adhered to one surface of the driving shaft 201, the driving shaft 201 extends into the cavity, the driving belt 2012 is installed on the peripheral side face of the driving shaft 201, and the driving belt 2012 is in contact fit with the transmission shaft 1043.
Wherein, drive shaft 201 and transmission shaft 1043 pass through the transmission cooperation of drive belt 2012, and the pilot lamp and the cooperation of layer board 1022 electrical property, after layer board 1022 pressurized, switch on the pilot lamp circuit, can show the position of sample and cell definitely, and the detection personnel of being convenient for adjust to switch and detect the sample.
Example 1:
referring to fig. 1-7, the present embodiment is a working principle and an operation method of a food chemical contamination detection apparatus:
it should be further noted that the limiting frame 102 is used for installing cuvettes, wherein the number of cuvettes to be installed depends on the specific detection process and target; the characteristics of the wavelength and the like of a light source emitted by the laser emitter can be adjusted by the instrument, and the initial position of the shading arc plate 1044 is the back of the laser emitter so as to ensure that the light source can be emitted smoothly;
when the colorimetric indicator is used, firstly, the main structure of the colorimetric indicator is determined to be a spectrophotometer, so that after a sample solution to be subjected to colorimetric is prepared, the cuvette is arranged on the limiting frame 102, the supporting plate 1022 is extruded by the cuvette at the moment, the shading cover 105 is closed, the elastic connecting plate 1051 is electrically connected with the fixed clamping groove 1011 and is matched with the supporting plate 1022 to conduct a display circuit of the indicator, and the position of the colorimetric sample can be clearly indicated;
subsequently, the rotating wheel 2011 is rotated to drive the light emitting frame 104 to rotate by using the transmission belt 2012, so as to change the light emitting position and switch the measuring position; at this time, the telescopic slide bar 1046 retracts under the action of the spring 1049 after being separated from the attraction of the magnetic block 103, so that the rack 1047 drives the gear 1045 to rotate, and the shading arc plate 1044 rotates to the position of the laser emitter to shade a light source; in the period, the fixing position of the cuvette is fixed, and only the light emitting rack 104 needs to be adjusted to rotate, so that the sample liquid is prevented from being splashed to pollute the instrument.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A food chemical pollution detection device, includes workspace and control area, its characterized in that: the device comprises a work area, a control area and a display area, wherein the work area is a spectrophotometric box (1), the control area comprises an operation block (2) and a display panel (3), the spectrophotometric box (1) is of a groove box body structure, the operation block (2) is of a hollow structure, the spectrophotometric box (1) and the operation block (2) are of an integrated structure, a cavity is formed in the spectrophotometric box, the spectrophotometric box (1) is communicated with the operation block (2) through the cavity, and the operation block (2) is in hinged fit with the display panel (3);
a working groove (101) is formed in one surface of the spectrophotometric box (1), a plurality of limiting frames (102) are connected to one surface of the working groove (101) in a clamping mode, each limiting frame (102) comprises a limiting plate (1021) and a supporting plate (1022), each limiting plate (1021) is of a U-shaped plate structure, and the supporting plate (1022) and the limiting plate (1021) are adaptive in structure and position;
a pressure spring (1023) is installed between the supporting plate (1022) and the bottom surface of the working groove (101), the supporting plate (1022) is in sliding fit with the limiting plate (1021) and is electrically matched with the bottom surface of the working groove (101), a plurality of magnetic blocks (103) are adhered to the bottom surface of the working groove (101), and the positions and the number of the magnetic blocks (103) are matched with those of the limiting frame (102);
the light emitting rack (104) is installed on the bottom surface of the working groove (101), and the plurality of limiting racks (102) and the plurality of magnetic blocks (103) are in annular array by taking the light emitting rack (104) as a circle center; the light emitting frame (104) is rotatably matched with the working groove (101), the light emitting frame (104) comprises a light emitting head (1041), a limiting rotary seat (1042) and a transmission shaft (1043), the light emitting head (1041) is communicated with the limiting rotary seat (1042) in the inner part, and the transmission shaft (1043) extends to the cavity;
a laser emitter is installed on one side face of the light emitting head (1041), a rotating rod is installed on one end face of the light emitting head (1041), a shading arc plate (1044) is bonded on one surface of the rotating rod, the shading arc plate (1044) is matched with the structure of the light emitting head (1041), and a gear (1045) is bonded on the other surface of the rotating rod, extends into the light emitting head (1041), and is matched with the light emitting frame (104) in a rotating mode;
a telescopic sliding rod (1046) is mounted on one side face of the limiting rotary seat (1042), a rack (1047) is adhered to one surface of the telescopic sliding rod (1046) and extends into the limiting rotary seat (1042), the rack (1047) is meshed with a gear (1045), and the rack (1047) is in sliding fit with the limiting rotary seat (1042);
the other surface of the telescopic slide bar (1046) is adhered with a magnetic plate (1048), a spring (1049) is adhered between the magnetic plate (1048) and the telescopic slide bar (1046), and the magnetic plate (1048) is matched with the magnetic block (103) in a magnetic attraction manner.
2. The chemical contamination detection device for food according to claim 1, wherein a plurality of fixing grooves (1011) are formed in one surface of the working tank (101), one side surface of each fixing groove (1011) is communicated with the outside of the working tank (101), and a fixing buckle (1012) is mounted on one surface of each fixing groove (1011).
3. The chemical contamination detection device for food according to claim 2, wherein a light shielding cover (105) is hinged to one surface of the working tank (101), the light shielding cover (105) is adapted to the size and structure of the working tank (101), a plurality of connection elastic plates (1051) are bonded to one surface of the light shielding cover (105), the connection elastic plates (1051) are in snap fit with the fixing clamping grooves (1011) and are in electrical fit with each other, a plurality of indicator lamps are mounted on the other surface of the light shielding cover (105), the indicator lamps are electrically connected with the connection elastic plates (1051), and the indicator lamps are adapted to the position and number of the limiting frame (102).
4. A chemical contamination detector for food according to claim 3, wherein a driving shaft (201) is installed on a surface of the operation block (2), an operation rotating wheel (2011) is adhered to a surface of the driving shaft (201), the driving shaft (201) extends into the cavity, a driving belt (2012) is installed on a peripheral side of the driving shaft (201), and the driving belt (2012) is in contact fit with the driving shaft (1043).
5. A chemical contamination detector for food according to claim 4, wherein the driving shaft (201) is in driving engagement with the driving shaft (1043) via a driving belt (2012), and the indicator light is electrically engaged with the supporting plate (1022).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010902207.3A CN111929258B (en) | 2020-09-01 | 2020-09-01 | Food chemical pollution detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010902207.3A CN111929258B (en) | 2020-09-01 | 2020-09-01 | Food chemical pollution detection device |
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| CN111929258A CN111929258A (en) | 2020-11-13 |
| CN111929258B true CN111929258B (en) | 2021-02-26 |
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| CN202010902207.3A Active CN111929258B (en) | 2020-09-01 | 2020-09-01 | Food chemical pollution detection device |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4234538A (en) * | 1977-10-28 | 1980-11-18 | Coulter Electronics, Inc. | Apparatus for monitoring chemical reactions and employing moving photometer means |
| PL1767272T3 (en) * | 2005-09-21 | 2011-07-29 | F Hoffmann La Roche Ltd | Cuvette holder, cuvette array and analyzer comprising such components |
| JP2007327759A (en) * | 2006-06-06 | 2007-12-20 | Jasco Corp | Microcell and microcell holder |
| CN107860731A (en) * | 2017-12-08 | 2018-03-30 | 徐海峰 | A kind of specimen cup pivot analysis type spectrophotometer and analysis method |
| CN208076386U (en) * | 2018-04-28 | 2018-11-09 | 四川省华检技术检测服务有限公司 | A kind of holder of accurate positioning |
| CN208937487U (en) * | 2018-05-16 | 2019-06-04 | 郑州贯奥仪器仪表有限公司 | Cuvette slot |
| CN211318175U (en) * | 2019-09-06 | 2020-08-21 | 武汉光谷联合医学检验所股份有限公司 | Novel ultramicro spectrophotometer |
| CN110806382B (en) * | 2019-11-22 | 2022-06-28 | 长春美泰仪器有限公司 | Integrated liquid and solid detection pool device and fluorescence detector |
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Inventor after: Jia Shuju Inventor after: Wang Haijun Inventor after: Chen Shizhong Inventor after: Ge Xiaoyan Inventor before: Ge Xiaoyan |
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Effective date of registration: 20210128 Address after: 463800 Shangcai industrial agglomeration area, Zhumadian, Henan Applicant after: HENAN JINLIYUAN AGRICULTURAL PRODUCT Co.,Ltd. Address before: No.58, ningqiao North Road, Jiangning street, Jiangning District, Nanjing City, Jiangsu Province, 210000 Applicant before: Nanjing Jinhua Machinery Manufacturing Co.,Ltd. |
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