CN201697902U - Liquid chromatograph with grating fixing bracket - Google Patents
Liquid chromatograph with grating fixing bracket Download PDFInfo
- Publication number
- CN201697902U CN201697902U CN2009202465794U CN200920246579U CN201697902U CN 201697902 U CN201697902 U CN 201697902U CN 2009202465794 U CN2009202465794 U CN 2009202465794U CN 200920246579 U CN200920246579 U CN 200920246579U CN 201697902 U CN201697902 U CN 201697902U
- Authority
- CN
- China
- Prior art keywords
- grating
- horizontal
- opening
- support arm
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a liquid chromatograph with a grating fixing bracket. The liquid chromatograph comprises a grating module and a grating adjusting swivel base, wherein the grating module comprises a grating and a grating seat which are fixedly connected with each other; the grating adjusting swivel base adopts an inverted T-shaped support including a plumb support arm and a horizontal support arm; a grating seat adjusting hole is formed on the plumb support arm; the axial direction of the grating seat adjusting hole coincides with the length direction of the horizontal support arm; a horizontal opening is formed in the radial direction of the grating seat adjusting hole; a threaded hole perpendicular to the horizontal opening is formed on the plumb support arm; a horizontal opening and a threaded hole perpendicular to the horizontal opening are formed at one end of the horizontal support arm, and a plumb opening is formed at the other end of the horizontal support arm; and a threaded hole perpendicular to the plumb opening is formed at the end with the plumb opening of the horizontal support arm. The liquid chromatograph of the utility model can realize the multidimensional adjustment of the grating at five free degrees, reduce the impact on the positioning accuracy of the grating due to installation and processing errors, and have simple structure and convenient operation.
Description
Technical field
The utility model relates to a kind of liquid chromatograph with grating fixed mount.
Background technology
High performance liquid chromatograph is an instrument and equipment of realizing liquid-phase chromatographic analysis, mainly comprise transfusion system, sampling system, chromatographic column, several parts such as detecting device and data handling system, its principle of work is: transfusion system is carried and is met high performance liquid chromatography (High performance Liquid Chromatography, HPLC) moving phase of Yao Qiuing enters sampling system, again sample to be analyzed is introduced chromatographic column, sample after chromatographic column is separated divides and enters detecting device with moving phase, and the filter disc in the beam splitting system of detecting device is by switching the different optical filter of several wavelength coverages narrower complex light of wavelength coverage that will merotomize from the complex light that light source shines; By grating beam splitting, will come in from entrance slit, the complex light that projects on the grating is divided into monochromatic light; The directional light of coming from the collimation mirror is changed direction, project on the object lens, simultaneously, being delivered to object lens after the energy change direction of the directional light of coming from the collimation mirror; To can coalescence be imaged onto on the exit slit from the diverging light that entrance slit comes in to be mapped to grating through concave grating,, press the physics of sample or chemical characteristic with the electric signal of information translation, and note, obtain the chromatogram of sample component separation for easily measuring with this; Position, shape and size by the spectrum peak can be judged the quality of separating, and carry out qualitative, quantitative test.
The ultraviolet-visible spectrum detecting device becomes detecting device the most frequently used in the HPLC system because of its universality, the basic system of ultraviolet-visible detecting device is identical with general ultraviolet-visible spectrophotometer, is made up of light source, beam splitting system, detection cell and monitoring system four major parts.
The monochromatic light of the specific wavelength that obtains from light source and beam splitting system is during by detection cell, and a part of light is absorbed by the light absorptive solute in the solution, and remaining transmitted light arrives the photoelectric conversion component of detection system.Photoelectric conversion component converts the light signal that receives to electric signal, passes through steps such as electric signal amplification again, finally obtains and the proportional output signal of extinction material concentration to be measured.
Beam splitting system is one of core of ultraviolet-visible detecting device.It mainly is made up of entrance slit, collimating mirror, grating, object lens and exit slit.Entrance slit plays a part the restriction parasitic light and enters, and it generally is on the focus of collimating mirror; Collimating mirror will become directional light from the complex light that entrance slit shines; Grating is used for beam split.
Beam splitting system has three effects:
1, beam split, coming in from entrance slit, the complex light that projects on the grating is divided into monochromatic light;
2, turn to, the directional light of coming from the collimation mirror is changed direction, project on the object lens;
3, NE BY ENERGY TRANSFER is being delivered to object lens after the energy change direction of the directional light of coming from the collimation mirror; Concave grating then also has the function of imaging, will can be imaged onto on the exit slit by coalescence from the diverging light that entrance slit comes in to be mapped to grating.
This shows that grating is the core parts of beam splitting system, be related to the height of complete machine quality quality, level, is a very important optical element, so not only will fix it, also will adjust it.Because the fixedly requirement of grating is fixed on its design attitude reliably with grating, must not become flexible, reliably and with long-term, indeformable, and grating is the permissible accuracy height fixedly, depend merely on processing and be difficult to reach requirement, how complicated adjustment structure need be set, therefore the secured adjusted of most of grating is that deformation adjustment by the grating seat realizes that general grating is bonded in above the grating seat, and the adjusting distortion of regulating the grating seat will reach the effect of adjusting grating.Optical component fixing and in fact adjust be exactly to its six-freedom degree: be respectively to along the rotation of three coordinate axis and the constraint or the adjustment of translation.The basic design concept of different fixed mounts or adjustment rack all is in order to realize precision is adjusted and guaranteed to one or more degree of freedom.
The fixing way commonly used at present of grating seat has: trip bolt is fastening, elasticity rises, and pin clamps, pin is fixed, thread lock, axis hole self-locking, wedge clamping etc.
The Chinese patent 200620158483.9 of " fixed sturcture of a kind of grating seat and coupling shaft " that bulletin is authorized was just introduced a kind of grating seat on October 31st, 2007, realized the adjusting of five degree of freedom, it has the structure among Fig. 1: grating and grating seat link together by bonding, the adjustment that grating advances to move back by two jackscrews one along the adjusting of Y-axis sense of rotation forces the distortion of grating seat, the pickup groove axis luffing angle of grating seat is changed, thereby realize the adjusting of grating; The grating seat gib screw of fixed grating seat being unclamped both can realize along the rotation of X-direction and the translational adjustment of OX direction, is that driving by motor realizes around the rotation of Z axle.The connection of grating integral module and motor is to pin down wedge motor shaft is clamped and realizes by being installed in gib screw in the grating integral module.But when installing and using,, jackscrew carries out on the grating seat when the rotation of Y direction is regulated because acting directly on, because that the distortion of grating seat can cause the connection of grating and grating seat to produce is loosening, and then might cause that grating connects unstable and even come off; Though the installation of grating integral module utilizes the structure of gib screw and wedge ingenious, existing problems in the time of dismounting, if there is not external force to act on the wedge axis direction, wedge can't self separate with motor shaft.
The utility model content
The technical problems to be solved in the utility model is, a kind of easy to install, liquid chromatograph with grating fixed mount of being convenient to regulate is provided.
The utility model is by the following technical solutions:
A kind of liquid chromatograph with grating fixed mount comprises grating module and grating adjustment swivel base; Described grating module is formed by fixedly connecting by grating and grating seat; It is the inverted T-shape bearing of being made up of plummet support arm and horizontal mounting arm that described grating is adjusted the swivel base profile, the plummet support arm of this inverted T-shape bearing is provided with the grating seat and adjusts the hole, this grating seat is adjusted the axially consistent with the brachium direction of horizontal mounting arm of hole, and this grating seat is adjusted the hole and is radially had first horizontal opening, vertical described horizontal opening is provided with first threaded hole of mounting screw on the plummet support arm, in order to regulate the size of horizontal opening, the fixed grating module, and can carry out the rotation adjusting of grating scale direction and the axial translation adjustment of grating horizontal direction, wherein, the anglec of rotation that rotation is regulated by regulating between grating module and the grating adjustment swivel base realizes, is that rotate at the center with the certain level position all the time so that make the outgoing bands of a spectrum of grating; Realization is finely tuned in the fixed position that axial translation is adjusted swivel base by grating module and grating, so that grating is adjusted to going into arm and going out the appropriate location of arm of light path design finally.
One end of described horizontal mounting arm has second horizontal opening, at second threaded hole and the 3rd threaded hole with the mounting screw that is provided with vertical this horizontal opening on the horizontal mounting arm end of this horizontal opening, in order to regulate the angle of horizontal opening, regulate grating and adjust the luffing angle of swivel base plummet support arm, and then regulate the adjustment of the luffing angle of grating.
The other end of described horizontal mounting arm has the plummet opening, at the 4th threaded hole with the mounting screw that is provided with vertical this plummet opening on the horizontal mounting arm end of this plummet opening, in order to regulate the size of plummet opening, the fixing turning axle of stepper motor, can be to the edge perpendicular to the rotation of the direction of plummet support arm and horizontal mounting arm and the adjustment of translation, wherein sense of rotation is that driving force by stepper motor provides and adjusts, translation direction is to finely tune by the fixed position of grating being adjusted swivel base and step motor shaft, promptly unclamps and fixes through grating adjustment swivel base after screw aligns light path with grating again.
Adjustment by two openings that the horizontal mounting arm two ends are provided with makes grating outgoing bands of a spectrum be positioned at the center of light path.
Described grating is adhesively fixed with the grating seat and is in the same place.
Described grating seat is provided with the groove that bonding grating is used.
Described grating is adjusted the end face on upper shed limit of open slot of swivel base along the brachium direction of the horizontal mounting arm magnet that bonds, and in order to use simultaneously with the Hall detection module, is used for detecting the position of grating.
Horizontal mounting arm end with horizontal opening is provided with two mounting screws along the brachium direction of horizontal mounting arm.
The utlity model has following advantage:
1) grating of the present utility model is adjusted swivel base and is connected with drive unit, realizes the adjustment perpendicular to two degree of freedom of the rotation of the direction of plummet support arm and horizontal mounting arm and translation; Described grating module and grating are adjusted swivel base and are connected by the stationary shaft on the grating module, unclamp the screw of locking grating module, realize along the rotation of grating line direction and the adjustment of axial two degree of freedom; Grating adjust opening that swivel base one end is provided with and two along motor shaft to screw, realize adjusting of degree automatically of luffing angle of grating; Can carry out the multidimensional adjustment of five degree of freedom to grating with this, reduce because of install and mismachining tolerance to the influence of the bearing accuracy generation of grating, and simple in structure, easy to operate.
2) the utility model is by realizing adjusting swivel base with the grating that grating connects indirectly to the fine setting of grating, between grating and grating seat, do not have to produce the external force make it to be out of shape, can avoid the grating seat since regulate that distortion causes with the becoming flexible or come off of grating.
3) fixed form of grating seat of the present utility model and grating adjustment swivel base and grating adjustment swivel base and stepper motor is convenient and reliable, simple in structure, can dismantle easily and install.
Description of drawings
Fig. 1 is the structural representation that grating is connected with the grating seat;
Fig. 2 is the structural representation that grating is adjusted swivel base;
Fig. 3 is that grating module is adjusted the structural representation that swivel base is connected with grating;
Fig. 4 is the synoptic diagram along the adjustment of the rotation of grating line direction and axial two degree of freedom;
Fig. 5 is the synoptic diagram of adjustment of the luffing angle one degree of freedom of grating;
Fig. 6 is that grating is adjusted the structural representation that swivel base is connected with stepper motor;
Fig. 7 is along the synoptic diagram perpendicular to the adjustment of rotation of the direction of plummet support arm and horizontal mounting arm and translation;
Fig. 8 is that grating is adjusted synoptic diagram;
Fig. 9 is the left view of Fig. 8.
Embodiment
Embodiment
Shown in Fig. 1,2,3,4, a kind of liquid chromatograph with grating fixed mount described in the utility model comprises by grating module 1 and grating and adjusts the grating fixed mount that swivel base 2 is formed.
As shown in Figure 1, described grating module 1 is adhesively fixed by grating 11 and grating seat 12 and is formed by connecting, and described grating seat 12 is provided with the groove 13 that bonding grating is used.
As shown in Figure 2, it is the inverted T-shape bearing of being made up of plummet support arm 21 and horizontal mounting arm 22 that described grating is adjusted swivel base 2, the plummet support arm 21 of this inverted T-shape bearing is provided with the grating seat and adjusts hole 23, this grating seat is adjusted the axially consistent with the brachium direction of horizontal mounting arm 22 of hole 23, and this grating seat is adjusted hole 23 and is radially had horizontal opening 24, as shown in Figure 3, the threaded hole 26 of vertical described horizontal opening 24 mounting screws 25 on plummet support arm 21; As shown in Figure 4, can adjust along rotation and axial two degree of freedom of grating line direction grating.
As shown in Figure 3, one end of described horizontal mounting arm 22 has horizontal opening 27, be provided with the threaded hole 29 of the mounting screw 28 of two vertical-horizontal openings in the brachium direction of the horizontal mounting arm end upper edge horizontal mounting arm with horizontal opening 27, the end face on the upper shed limit of described horizontal opening 27 is along the brachium direction of the horizontal mounting arm magnet 4 that bonds.As shown in Figure 5, the mounting screw 28 of two vertical-horizontal openings can be adjusted the luffing angle of grating.
As shown in Figure 6, the other end of described horizontal mounting arm 22 has plummet opening 31, is provided with the threaded hole 33 of the mounting screw 32 of vertical plummet opening 31 on horizontal mounting arm 22 ends with plummet opening.As shown in Figure 7, can be to the grating edge perpendicular to the direction rotation of plummet support arm and horizontal mounting arm and the adjustment of translation.
The adjustment of four degree of freedom by two openings that horizontal mounting arm 22 two ends are provided with can make grating outgoing bands of a spectrum be positioned at the center of light path, shown in Fig. 8,9.
Claims (5)
1. the liquid chromatograph with grating fixed mount is characterized in that, comprises grating module and grating adjustment swivel base;
Described grating module is formed by fixedly connecting by grating and grating seat;
It is the inverted T-shape bearing of being made up of plummet support arm and horizontal mounting arm that described grating is adjusted the swivel base profile, the plummet support arm of this inverted T-shape bearing is provided with the grating seat and adjusts the hole, this grating seat is adjusted the axially consistent with the brachium direction of horizontal mounting arm of hole, and this grating seat is adjusted the hole and is radially had first horizontal opening, and vertical described horizontal opening is provided with first threaded hole of mounting screw on the plummet support arm; One end of described horizontal mounting arm has second horizontal opening, at second threaded hole and the 3rd threaded hole with the mounting screw that is provided with vertical this horizontal opening on the horizontal mounting arm end of this horizontal opening, the other end of described horizontal mounting arm has the plummet opening, at the 4th threaded hole with the mounting screw that is provided with vertical this plummet opening on the horizontal mounting arm end of this plummet opening.
2. a kind of liquid chromatograph with grating fixed mount according to claim 1 is characterized in that, described grating is adhesively fixed with the grating seat and is in the same place.
3. a kind of liquid chromatograph with grating fixed mount according to claim 1 is characterized in that described grating seat is provided with the groove that bonding grating is used.
4. a kind of liquid chromatograph with grating fixed mount according to claim 1 is characterized in that, described grating is adjusted the end face on upper shed limit of open slot of swivel base along the brachium direction of the horizontal mounting arm magnet that bonds.
5. a kind of liquid chromatograph with grating fixed mount according to claim 1 is characterized in that, the brachium direction with horizontal mounting arm end upper edge horizontal mounting arm of horizontal opening is provided with two mounting screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202465794U CN201697902U (en) | 2009-11-04 | 2009-11-04 | Liquid chromatograph with grating fixing bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202465794U CN201697902U (en) | 2009-11-04 | 2009-11-04 | Liquid chromatograph with grating fixing bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201697902U true CN201697902U (en) | 2011-01-05 |
Family
ID=43399149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202465794U Expired - Lifetime CN201697902U (en) | 2009-11-04 | 2009-11-04 | Liquid chromatograph with grating fixing bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201697902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556846A (en) * | 2020-11-24 | 2021-03-26 | 合肥立睿光电科技有限公司 | Optical fiber spectrometer and implementation method |
-
2009
- 2009-11-04 CN CN2009202465794U patent/CN201697902U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556846A (en) * | 2020-11-24 | 2021-03-26 | 合肥立睿光电科技有限公司 | Optical fiber spectrometer and implementation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101915562B (en) | Calibrating device for tilt angle sensor | |
| CN217386016U (en) | Polarization axis alignment device and polarization axis alignment system | |
| CN201697902U (en) | Liquid chromatograph with grating fixing bracket | |
| CN114543837A (en) | Calibration device for multiple meters | |
| CN210222333U (en) | Light path adjusting mechanism based on digital micromirror unit | |
| CN110376700B (en) | Light path adjusting mechanism based on digital micromirror unit and adjusting method thereof | |
| CN201837457U (en) | Spectrophotometer with grating adjusting structure | |
| CN106388847B (en) | Central indication assembly, PET-CT mounting rack and alignment method of PET-CT mounting rack | |
| CN109612411B (en) | Quick installation adjustment mechanism of open double-reading-head circular grating system | |
| CN201548532U (en) | Liquid chromatography with light switching mechanism | |
| CN109029935A (en) | The spacing bias and wave front aberration integrated measurer of optical lens | |
| CN215181127U (en) | Self-aligning lens clamping and rotating device and imaging quality and wave phase difference detection device | |
| CN111722457B (en) | Lens fixing and adjusting device and projection equipment | |
| CN221826436U (en) | Line laser detector | |
| CN113203639A (en) | Torsion testing device for microscale material | |
| CN2743797Y (en) | Light emitting device for photoelectric measurer | |
| CN221056739U (en) | Airborne optical image-eliminating rotation device easy to assemble and adjust | |
| CN216385737U (en) | High-precision detection calibration platform for multiple image imaging systems | |
| JPH06167644A (en) | Fitting device for solid-state image pickup element of image reader | |
| CN215730452U (en) | Photoelectric characteristic experimental device for optical fiber and semiconductor laser | |
| CN201917561U (en) | Liquid chromatograph with magnetic attraction type lamp-changing mechanism | |
| CN216013258U (en) | Chromatographic column fixing device of gas chromatograph | |
| CN219015506U (en) | Lens push-off force measuring device | |
| CN219265363U (en) | High accuracy road surface temperature and humidity detector mounting structure | |
| CN217768293U (en) | Assembling device of quadrupole rod mass analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING RIGOL TECHNOLOGIES, INC. Free format text: FORMER OWNER: BEIJING RIGOL TECHNOLOGY INC. Effective date: 20110121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110121 Address after: 102206 Beijing City, Shahe Town, step on the river village, No. 156 Patentee after: Beijing Rigol Technologies, Inc. Address before: 102206 Beijing City, Shahe Town, step on the river village, No. 156 Patentee before: Beijing RIGOL Science and Technology Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160518 Address after: 102206 Beijing City, Shahe Town, step on the river village, No. 156 Patentee after: Beijing RIGOL Science and Technology Co., Ltd. Address before: 102206 Beijing City, Shahe Town, step on the river village, No. 156 Patentee before: Beijing Rigol Technologies, Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180109 Address after: Kolding road high tech Zone of Suzhou City, Jiangsu Province, No. 8 215163 Patentee after: SUZHOU RIGOL PRECISION ELECTRIC TECHNOLOGIES CO., LTD. Address before: 102206 Beijing City, Shahe Town, step on the river village, No. 156 Patentee before: Beijing RIGOL Science and Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |