CN215894377U - Sampling device of atomic absorption spectrophotometer - Google Patents
Sampling device of atomic absorption spectrophotometer Download PDFInfo
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- CN215894377U CN215894377U CN202121642167.XU CN202121642167U CN215894377U CN 215894377 U CN215894377 U CN 215894377U CN 202121642167 U CN202121642167 U CN 202121642167U CN 215894377 U CN215894377 U CN 215894377U
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- positioning
- arm
- sample introduction
- atomic absorption
- hose
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Abstract
The utility model discloses a sample introduction device of an atomic absorption spectrophotometer, which comprises a base, a rotary table, a bracket, a hose and a lifting mechanism, wherein the base is provided with a rotary table; the rotary table is arranged on the base and provided with a plurality of placing positions for storing the sample bottles; the bracket is connected to the base in a sliding manner along the vertical direction and is provided with a sample introduction arm, the sample introduction arm is provided with a positioning tube which is vertically arranged, and the positioning tube is positioned above the placing position; the hose penetrates through the positioning pipe, one end of the hose extends out of the lower end of the positioning pipe, and the other end of the hose is connected with the pump body; the lifting mechanism is arranged on the base and connected with the support and drives the support to move along the vertical direction. The utility model has simple structure, the integral hose does not need to be additionally provided with a sealing structure, the risk of sample liquid leakage is effectively reduced, and the manufacturing cost is low.
Description
Technical Field
The utility model relates to the technical field of atomic absorption spectrophotometers, in particular to a sample feeding device of an atomic absorption spectrophotometer.
Background
The atomic absorption spectrophotometer has the advantages of sensitivity, quickness, high selectivity, convenient operation and the like, and is widely applied to the fields of chemical industry, petroleum, medicine, metallurgy, geology, food, biochemistry, environmental monitoring and the like, almost all metal elements and partial non-metal elements can be determined, wherein, the sampling device is an important accessory on the atomic absorption spectrophotometer, the existing sampling device is generally provided with a channel with one end communicated with the sampling tube in the interior of the sampling arm, the other end of the channel is provided with a pump body, sampling is realized, but the structure of the sampling arm is complicated by the mode, the manufacturing cost is high, and the problem of tightness exists between the sampling tube and the channel, sample liquid is easily leaked, and the detection result is influenced.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the sample feeding device of the atomic absorption spectrophotometer, which has the advantages of simple structure and low manufacturing cost.
The sample introduction device of the atomic absorption spectrophotometer provided by the embodiment of the utility model comprises: a machine base; the rotary table is arranged on the base and provided with a plurality of placing positions, and the placing positions are used for storing sample bottles; the bracket is connected to the base in a sliding manner along the vertical direction and provided with a sample introduction arm, the sample introduction arm is provided with a positioning tube which is vertically arranged, and the positioning tube is positioned above the placing position; the hose penetrates through the positioning pipe, one end of the hose extends out of the lower end of the positioning pipe, and the other end of the hose is connected with the pump body; and the lifting mechanism is arranged on the base and is connected with the support and drives the support to move along the vertical direction.
The technical scheme at least has the following beneficial effects: through wearing to establish and being located the locating tube with the hose, the pump body is direct to be connected with the hose to elevating system can drive the support and move down, and the support drives the hose and moves down and make the lower extreme of hose insert to the sample bottle on the carousel in, so that advance kind, this simple structure, integral hose need not additionally to set up seal structure, effectively reduces the risk that the appearance liquid was revealed, low in manufacturing cost.
According to some embodiments of the utility model, the end of the sample feeding arm is provided with a vertically arranged mounting hole, the upper end of the positioning tube is provided with a cylinder seat communicated with the positioning tube, the cylinder seat penetrates through the mounting hole, and the sample feeding arm is connected with a first fastener for fixing the cylinder seat.
According to some embodiments of the utility model, the upper end of the cartridge holder is provided with a flange having an outer diameter larger than an inner diameter of the mounting hole.
According to some embodiments of the utility model, a sealing cap is connected to the upper end of the cartridge holder, the sealing cap being provided with a through hole matching the outer diameter of the hose.
According to some embodiments of the utility model, the sample feeding arm is provided with a positioning plate, the positioning plate is provided with a plurality of first positioning holes, and the hose is arranged through one of the first positioning holes.
According to some embodiments of the utility model, the positioning plate is slidably connected to the sample arm, and the positioning plate is capable of moving along the length direction of the sample arm.
According to some embodiments of the utility model, a mounting block is disposed between the bracket and the sample injection arm, the sample injection arm is fixedly connected to the mounting block, the mounting block is rotatably connected to the upper end of the bracket, and the rotating shaft of the mounting block is arranged along the vertical direction, and the mounting block is connected with a second fastening member for fixing the mounting block.
According to some embodiments of the utility model, the turntable comprises a bearing disc and a positioning disc, the central axis of the bearing disc coincides with the central axis of the positioning disc, the bearing disc and the positioning disc are arranged at intervals along the vertical direction, the bearing disc and the positioning disc are fixedly connected, and the positioning disc is provided with a plurality of second positioning holes for storing the sample bottles.
According to some embodiments of the utility model, the positioning disc is provided with a plurality of number marks, the number marks correspond to the second positioning holes one by one, and the number marks are sequentially increased.
According to some embodiments of the utility model, the lifting mechanism comprises a motor, a screw rod and a nut pair matched with the screw rod, the motor is mounted on the base, the nut pair is fixed on the bracket, the screw rod is arranged along the vertical direction, one end of the screw rod is connected with the motor, and the other end of the screw rod is connected with the nut pair.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a sample injection device according to an embodiment of the present invention;
fig. 2 is an enlarged view of a in fig. 1.
Reference numerals:
a base 100; a pump body 110;
a turntable 200; a carrier puck 210; a positioning disk 220; the second positioning hole 221;
a support 300; a sample introduction arm 310; a mounting hole 311; a positioning tube 320; a barrel mount 321; the flanges 3211; a first fastener 330; a sealing cover 340; a through hole 341; a positioning plate 350; the first positioning hole 351; a mounting block 360; a second fastener 361;
a hose 400;
a lifting mechanism 500; a motor 510; a screw 520; the nut pair 530.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and 2, an embodiment of the present invention provides a sample introduction apparatus for an atomic absorption spectrophotometer, including a base 100, a turntable 200, a bracket 300, a hose 400 and a lifting mechanism 500, wherein the turntable 200 is disposed on the base 100, and the turntable 200 has a plurality of placement locations (not shown in the figure) for storing sample bottles; the support 300 is slidably connected to the base 100 along a vertical direction, the support 300 is vertically arranged, generally speaking, the support 300 and the base 100 can be matched through a guide sleeve and a guide pillar or a slide rail and a slide block, wherein the guide pillar or the slide block is vertically arranged to realize the sliding connection, the support 300 is provided with a sample injection arm 310, the sample injection arm 310 can be arranged along a horizontal direction and extends to the outer side of the support 300, a positioning tube 320 which is vertically arranged is mounted at the end part of the sample injection arm 310, and the positioning tube 320 is positioned above a placing position; the hose 400 penetrates through the positioning tube 320, the lower end of the hose 400 extends out of the lower end of the positioning tube 320, the upper end of the hose 400 is connected with the pump body 110, the pump body 110 can be a water pump, and the pump body 110 is installed on the base 100; the lifting mechanism 500 is disposed on the base 100, and the lifting mechanism 500 is connected to the bracket 300 and drives the bracket 300 to move in a vertical direction.
During the specific use, the carousel 200 rotates, make the target sample bottle arrange in the registration arm 320 under, elevating system 500 drive support 300 downstream, support 300 drives hose 400 downstream, make the lower extreme of hose 400 insert to the target sample bottle, so that the pump body 110 carries out the analysis through hose 400 extraction target sample bottle's appearance liquid to atomic absorption spectrophotometer, this place sets up an integral hose 400 extraction appearance liquid, moreover, the steam generator is simple in structure, and need not hose 400 again and locate to set up seal structure additionally, effectively reduce the risk that appearance liquid was revealed, low in manufacturing cost.
Referring to fig. 2, it can be understood that an end of the sample injection arm 310 is provided with a vertically arranged mounting hole 311, an upper end of the positioning tube 320 is provided with a cylinder base 321 communicated with the positioning tube 320, generally, an outer diameter of the cylinder base 321 is slightly smaller than an inner force of the mounting hole 311, the cylinder base 321 is inserted into the mounting hole 311, the sample injection arm 310 is connected with a first fastening member 330 for fixing the cylinder base 321, the first fastening member 330 may be a fastening screw, the first fastening member 330 is arranged along a radial direction of the mounting hole 311, and an end of the first fastening member 330 extends into the mounting hole 311, and the first fastening member 330 is screwed to press an end of the first fastening member 330 against an outer wall of the cylinder base 321, so as to fix the positioning tube 320, which is convenient to install and operate, and is stable in connection.
Referring to fig. 2, it can be understood that a flange 3211 is disposed at the upper end of the cylinder base 321, the outer diameter of the flange 3211 is greater than the inner diameter of the mounting hole 311, the cylinder base 321 penetrates into the mounting hole 311 from top to bottom, and when the cylinder base 321 is mounted in place, the lower end surface of the flange 3211 abuts against the sample injection arm 310, so that the cylinder base 321 can be limited, and the mounting is convenient.
Referring to fig. 2, it can be understood that a sealing cover 340 is connected to the upper end of the cylinder seat 321, and the sealing cover 340 is provided with a through hole 341 matching with the outer diameter of the hose 400, so as to prevent dust from entering between the positioning tube 320 and the hose 400, and prevent the dust from falling into the sample bottle after long-term accumulation to contaminate the sample liquid.
Referring to fig. 1, it can be understood that the sample feeding arm 310 is provided with a positioning plate 350, the positioning plate 350 is provided with a plurality of first positioning holes 351, the hose 400 is inserted into one of the first positioning holes 351, the hose 400 can be positioned in the sample feeding arm 310, the hose 400 is prevented from being suspended and affecting the lifting movement of the bracket 300, and the overall structure is compact.
Referring to fig. 1, it can be understood that the positioning plate 350 is slidably connected to the sample feeding arm 310, the positioning plate 350 can move along the length direction of the sample feeding arm 310, the positioning plate 350 can be sleeved on the sample feeding arm 310, and the positioning point on the sample feeding arm 310 is moved to a suitable position according to the length of the hose 400, for example, the position of the hose 400 is long, and then the positioning plate 350 is moved to a position away from the cartridge seat 321, so that a part of the hose 400 is prevented from being suspended, and the use is facilitated.
Referring to fig. 1, it can be understood that a mounting block 360 is disposed between the bracket 300 and the sample injection arm 310, the sample injection arm 310 is fixedly connected to the mounting block 360, the mounting block 360 is rotatably connected to the upper end of the bracket 300, and the rotating shaft of the mounting block 360 is arranged along the vertical direction, generally, the top of the bracket 300 is a cylindrical structure, the mounting block 360 can be provided with a concave position matched with the cylindrical structure at the top of the bracket 300, so as to realize that the mounting block 360 is rotatably connected to the bracket 300, the mounting block 360 is connected with a second fastener 361, the second fastener 361 is used for fixing the mounting block 360, the second fastener 361 can be a fastening screw, the second fastener 361 is arranged along the horizontal direction, and the end of the second fastener 361 can be pressed against the outer wall of the bracket 300, so that the sample injection arm 310 can be rotated around the vertical axis after the second fastener 361 is released, so as to adjust the positioning tube 320 to be right above the target sample bottle, namely, the lower end of the hose 400 is adjusted to be right above the target sample bottle, so that accurate sample introduction is facilitated, and the operation is convenient.
Referring to fig. 1, it can be understood that the turntable 200 includes a bearing disk 210 and a positioning disk 220, a central axis of the bearing disk 210 coincides with a central axis of the positioning disk 220, and the bearing disk 210 and the positioning disk 220 are arranged at intervals along a vertical direction, the bearing disk 210 and the positioning disk 220 are fixedly connected, the positioning disk 220 is provided with a plurality of second positioning holes 221 for storing sample bottles, the second positioning holes 221 are placement positions, so that a plurality of sample bottles can be placed, diameters of the second positioning holes 221 may be different, therefore, sample bottles with different outer diameter sizes can be placed, the use is convenient, the turntable 200 is simple in structure, and the implementation is easy.
Referring to fig. 1, it can be understood that the positioning disc 220 is provided with a plurality of number marks (not shown), the number marks are respectively disposed at one side of the second positioning holes 221, the number marks correspond to the second positioning holes 221 one by one, and the number marks are sequentially increased, for example, the number marks are arabic numbers 1, 2, 3, etc., respectively, so as to distinguish different sample bottles and avoid confusion.
Referring to fig. 1, it can be understood that the lifting mechanism 500 includes a motor 510, a screw 520 and a nut pair 530 engaged with the screw 520, the motor 510 is installed on the base 100, the nut pair 530 is fixed to the bracket 300, the screw 520 is arranged along the vertical direction, one end of the screw 520 is connected to the motor 510, and the other end is connected to the nut pair 530, so that the motor 510 drives the screw 520 to rotate to make the nut pair 530 move along the vertical direction, and the nut pair 530 can drive the bracket 300 to move along the vertical direction.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A sampling device of atomic absorption spectrophotometer, its characterized in that includes:
a machine base;
the rotary table is arranged on the base and provided with a plurality of placing positions, and the placing positions are used for storing sample bottles;
the bracket is connected to the base in a sliding manner along the vertical direction and provided with a sample introduction arm, the sample introduction arm is provided with a positioning tube which is vertically arranged, and the positioning tube is positioned above the placing position;
the hose penetrates through the positioning pipe, one end of the hose extends out of the lower end of the positioning pipe, and the other end of the hose is connected with the pump body;
and the lifting mechanism is arranged on the base and is connected with the support and drives the support to move along the vertical direction.
2. The sample introduction device of the atomic absorption spectrophotometer according to claim 1, wherein: the tip of advancing the appearance arm is provided with vertical arrangement's mounting hole, the upper end of registration arm is provided with the intercommunication the mount of registration arm, the mount is worn to locate the mounting hole, it is used for fixing to advance the appearance arm be connected with the first fastener of mount.
3. The sample introduction device of the atomic absorption spectrophotometer according to claim 2, wherein: the upper end of the cylinder seat is provided with a flange, and the outer diameter of the flange is larger than the inner diameter of the mounting hole.
4. The sample introduction device of the atomic absorption spectrophotometer according to claim 3, wherein: the upper end of the cylinder seat is connected with a sealing cover, and the sealing cover is provided with a through hole matched with the outer diameter of the hose.
5. The sample introduction device of the atomic absorption spectrophotometer according to claim 1, wherein: the sampling arm is provided with a positioning plate, the positioning plate is provided with a plurality of first positioning holes, and the hose penetrates through one of the first positioning holes.
6. The sample introduction device of the atomic absorption spectrophotometer according to claim 5, wherein: the locating plate sliding connection in advance kind the arm, the locating plate can be followed advance the length direction removal of kind the arm.
7. The sample introduction device of the atomic absorption spectrophotometer according to claim 1, wherein: the support with advance to be provided with the installation piece between the kind arm, advance kind arm fixed connection in the installation piece, the installation piece rotate connect in the upper end of support, and the axis of rotation of installation piece is arranged along vertical direction, the installation piece is connected with the second fastener, the second fastener is used for fixing the installation piece.
8. The sample introduction device of the atomic absorption spectrophotometer according to claim 1, wherein: the rotary disc comprises a bearing disc and a positioning disc, the central axis of the bearing disc is superposed with the central axis of the positioning disc, the bearing disc and the positioning disc are arranged at intervals along the vertical direction, the bearing disc is fixedly connected with the positioning disc, and the positioning disc is provided with a plurality of second positioning holes for storing the sample bottles.
9. The sample introduction device of the atomic absorption spectrophotometer according to claim 8, wherein: the positioning disc is provided with a plurality of digital marks, the digital marks correspond to the second positioning holes one by one, and the digital marks are sequentially increased in size.
10. The sample introduction device of the atomic absorption spectrophotometer according to claim 1, wherein: the lifting mechanism comprises a motor, a screw rod and a nut pair matched with the screw rod, the motor is installed on the base, the nut pair is fixed on the support, the screw rod is arranged in the vertical direction, one end of the screw rod is connected with the motor, and the other end of the screw rod is connected with the nut pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121642167.XU CN215894377U (en) | 2021-07-19 | 2021-07-19 | Sampling device of atomic absorption spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121642167.XU CN215894377U (en) | 2021-07-19 | 2021-07-19 | Sampling device of atomic absorption spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215894377U true CN215894377U (en) | 2022-02-22 |
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ID=80562261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121642167.XU Active CN215894377U (en) | 2021-07-19 | 2021-07-19 | Sampling device of atomic absorption spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215894377U (en) |
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2021
- 2021-07-19 CN CN202121642167.XU patent/CN215894377U/en active Active
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