CN210522460U

CN210522460U - Dioxin standard solution device

Info

Publication number: CN210522460U
Application number: CN201921043552.5U
Authority: CN
Inventors: 恽涛涛
Original assignee: Jiangsu Changli Testing Service Co Ltd
Current assignee: Jiangsu Changli Testing Service Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-05-15
Anticipated expiration: 2029-07-05

Abstract

The utility model relates to the technical field of standard liquid configuration instruments, in particular to a dioxin standard solution device, which comprises an electronic scale body, wherein a control microcomputer connected with the electronic scale body is arranged in the electronic scale body, and a display, a control switch and an operation button which are connected with the control microcomputer are also arranged on the electronic scale body; the top of electronic scale body is equipped with the tray of weighing, and the both sides of tray of weighing are vertical to be equipped with the support frame of symmetry, and top-down is equipped with the crossbeam in proper order between two support frames, removes frame and mount, and the both ends that remove the frame are equipped with linear sliding mechanism, and the middle part that removes the frame is equipped with linear actuating mechanism, removes the same one side of frame and mount and is equipped with clamping part and lower clamping part respectively, goes up and is equipped with the opening on the clamping part, is equipped with titration outfit in the opening. The utility model discloses simple structure can effectively improve the accuracy of standard liquid concentration, can effectively improve simultaneously and titrate efficiency, improves experimental data analysis's reliability.

Description

Dioxin standard solution device

Technical Field

The utility model relates to a standard solution configuration instrument technical field especially relates to a dioxin standard solution device.

Background

In the process of preparing a dioxin standard solution, a standard solution is prepared by polytetrafluoroethylene of a standard mother solution and polytetrafluoroethylene of deionized water generally, the current standard solution preparation is usually carried out by an experimenter manually by adopting a burette, the concentration of the manually prepared standard solution is closely related to the deviation of a theoretical value and factors of the experimenter, the burette usually takes a drop as a unit in the titration process, the experimenter is difficult to control in the titration process, the error of the prepared standard solution is large, and the prepared standard solution can bring great uncertainty to a sample detection result and even influence the analysis of data. Meanwhile, the manual preparation of a series of standard solutions has large workload, wastes time and labor, and the prepared standard solutions have large concentration deviation. Therefore, we propose a dioxin standard solution device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of large workload and large concentration deviation of configured standard solution in the prior art and providing a dioxin standard solution device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

designing a dioxin standard solution device, which comprises an electronic scale body, wherein a control microcomputer connected with the electronic scale body is arranged in the electronic scale body, and a display, a control switch and an operation key which are connected with the control microcomputer are also arranged on the electronic scale body;

the top of the electronic scale body is provided with a weighing tray, two sides of the weighing tray are vertically provided with symmetrical support frames, a cross beam, a moving frame and a fixed frame are sequentially arranged between the two support frames from top to bottom, two ends of the moving frame are provided with linear sliding mechanisms, the middle part of the moving frame is provided with a linear driving mechanism, the same side of the moving frame and the fixed frame is respectively provided with an upper clamping part and a lower clamping part, the upper clamping part is provided with an opening, and a titration device is arranged in the opening;

the titration apparatus comprises an insertion block, the insertion block is detachably inserted into the notch, a solution cylinder penetrates through the insertion block, a piston column matched with the solution cylinder is arranged in the solution cylinder, the top end of the piston column abuts against the upper clamping part, and a titration spray head is arranged at the bottom of the solution cylinder.

Preferably, the linear sliding mechanism comprises a sliding rail and a sliding block, the sliding rail is a linear sliding rail, the sliding block is connected to the sliding rail in a sliding mode, the sliding rail is vertically fixed to the supporting frame, and the end portion of the moving frame is fixed to the sliding block.

Preferably, the linear driving mechanism comprises a pushing motor, a screw rod, an internal thread shaft sleeve and a shaft seat, the pushing motor is fixed on the cross beam and is connected with a control microcomputer in the electronic scale body, the screw rod penetrates through the movable frame and is connected with the movable frame through the internal thread shaft sleeve, one end of the screw rod is fixedly connected to the output end of the pushing motor, and the other end of the screw rod is fixed on the fixed frame through the shaft seat.

Preferably, a sealing ring is arranged between the solution cylinder and the piston column.

Preferably, a plurality of micro spray holes are uniformly distributed on the titration surface of the titration nozzle.

The utility model provides a dioxin standard solution device, beneficial effect lies in:

(1) the utility model discloses simple structure through the microcomputer control titration volume, makes the standard solution concentration of configuration more accurate, can effectively improve experimental data's the degree of accuracy.

(2) The utility model discloses an automatic titration can effectively improve titration efficiency, ensures the uniformity of configuration in batches simultaneously, further reduces experimental error, improves experimental data analysis's reliability.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is an enlarged schematic view of point a in the present invention;

labeled as: the electronic scale comprises an electronic scale body 1, a weighing tray 2, a display 3, a control switch 4, an operation key 5, a support frame 6, a cross beam 7, a fixed frame 8, a slide rail 9, a slide block 10, a moving frame 11, a pushing motor 12, a screw 13, an internal thread shaft sleeve 14, a shaft seat 15, a solution cylinder 16, a piston column 17, a gap 18, an insert block 19, a titration spray nozzle 20, a micro spray hole 21, an upper clamping part 22 and a lower clamping part 23.

Detailed Description

The present invention will be further described with reference to the following specific examples. These examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The structural features of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1-3, a dioxin standard solution device comprises an electronic scale body 1, a control microcomputer connected with the electronic scale body 1 is arranged in the electronic scale body 1, and a display 3, a control switch 4 and an operation key 5 which are connected with the control microcomputer are also arranged on the electronic scale body 1;

the top of the electronic scale body 1 is provided with a weighing tray 2, two sides of the weighing tray 2 are vertically provided with symmetrical support frames 6, a cross beam 7, a moving frame 11 and a fixed frame 8 are sequentially arranged between the two support frames 6 from top to bottom, two ends of the moving frame 11 are provided with linear sliding mechanisms, the middle part of the moving frame 11 is provided with a linear driving mechanism, the same sides of the moving frame 11 and the fixed frame 8 are respectively provided with an upper clamping part 22 and a lower clamping part 23, the upper clamping part 22 is provided with an opening 18, and a titration device is arranged in the opening 18;

titration outfit is including inserting piece 19, and inserting piece 19 can be dismantled and peg graft in opening 18, and insert piece 19 and go up to run through and be equipped with a solution section of thick bamboo 16, is equipped with assorted piston column 17 with it in the solution section of thick bamboo 16, and the top of piston column 17 is contradicted on last clamping part 22, and the bottom of a solution section of thick bamboo 16 is equipped with titration spray head 20.

The utility model discloses a dioxin standard solution device, simple structure through the microcomputer control titration volume, makes the standard solution concentration of configuration more accurate, can effectively improve the degree of accuracy of experimental data, adopts automatic titration, can effectively improve titration efficiency, ensures the uniformity of configuration in batches simultaneously, further reduces experimental error, improves experimental data analysis's reliability.

Specifically, when the electronic scale is used, the electronic scale body 1 is started through the control switch 4, the polytetrafluoroethylene solution cylinder 16 containing standard mother liquor is placed on the lower clamping portion 23, then the container with the standard solution is placed below the titration spray head 20, the total weight of the solution on the display 3 at the moment is recorded, then the adding amount of the solution is set through the operation key 5, titration liquid adding is carried out, in the liquid adding process, the linear driving mechanism pushes the moving frame 11 to move downwards slowly, the piston column 17 is pushed to extrude the solution in the solution cylinder 16, the titration liquid adding is stopped until the remaining total weight of the titrated solution reaches a set value through the display 3, the titration liquid adding is carried out in the container in the same method according to the mass of the polytetrafluoroethylene component with the standard solution deionized water, and therefore the standard solution can be rapidly and accurately configured.

Referring to fig. 1, further, the linear sliding mechanism includes a sliding rail 9 and a sliding block 10, the sliding rail 9 is a linear sliding rail, the sliding block 10 is slidably connected to the sliding rail 9, the sliding rail 9 is vertically fixed on the supporting frame 6, and an end of the moving frame 11 is fixed on the sliding block 10.

The linear sliding mechanism is provided to slide the movable frame 11 up and down, which is advantageous for controlling the titration of the solution.

Referring to fig. 1 and 2, further, the linear driving mechanism includes a pushing motor 12, a screw 13, an internal thread shaft sleeve 14 and a shaft seat 15, the pushing motor 12 is fixed on the beam 7, and the pushing motor 12 is connected with a control microcomputer in the electronic scale body 1, the screw 13 is arranged on the moving frame 11 in a penetrating manner, the screw 13 is connected with the moving frame 11 through the internal thread shaft sleeve 14, one end of the screw 13 is fixedly connected to an output end of the pushing motor 12, and the other end is fixed on the fixed frame 8 through the shaft seat 15.

Set up linear drive mechanism, can realize the automatic titration liquid feeding in the use, effectively improve titration efficiency, labour saving and time saving has simultaneously guaranteed the precision of titrating.

Furthermore, a sealing ring is arranged between the solution cylinder 16 and the piston column 17.

The sealing ring is arranged to ensure the sealing performance between the solution cylinder 16 and the piston column 17.

Referring to fig. 3, a plurality of micro-spray holes 21 are uniformly arranged on the titration surface of the titration nozzle 20.

The micro spray hole 21 is arranged, so that the titration liquid is discharged in a fine liquid injection mode during titration, liquid drops can be prevented from being formed at the bottom of the titration nozzle 20 during titration, and the accuracy of the standard liquid configuration concentration is further improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dioxin standard solution device comprises an electronic scale body (1), and is characterized in that a control microcomputer connected with the electronic scale body (1) is arranged in the electronic scale body, and a display (3), a control switch (4) and an operation key (5) connected with the control microcomputer are also arranged on the electronic scale body (1);

the top of the electronic scale body (1) is provided with a weighing tray (2), two sides of the weighing tray (2) are vertically provided with symmetrical support frames (6), a cross beam (7), a moving frame (11) and a fixing frame (8) are sequentially arranged between the two support frames (6) from top to bottom, two ends of the moving frame (11) are provided with linear sliding mechanisms, the middle of the moving frame (11) is provided with a linear driving mechanism, the same side of the moving frame (11) and the fixing frame (8) is respectively provided with an upper clamping part (22) and a lower clamping part (23), the upper clamping part (22) is provided with a notch (18), and a titration device is arranged in the notch (18);

the titration apparatus comprises an insertion block (19), the insertion block (19) is detachably inserted into the notch (18), a solution cylinder (16) penetrates through the insertion block (19), a piston column (17) matched with the solution cylinder is arranged in the solution cylinder (16), the top end of the piston column (17) abuts against the upper clamping part (22), and a titration spray head (20) is arranged at the bottom of the solution cylinder (16).

2. The dioxin standard solution device according to claim 1, wherein the linear sliding mechanism comprises a slide rail (9) and a slide block (10), the slide rail (9) is a linear slide rail, the slide block (10) is slidably connected to the slide rail (9), the slide rail (9) is vertically fixed on the support frame (6), and the end of the movable frame (11) is fixed on the slide block (10).

3. The dioxin standard solution device according to claim 1, wherein the linear driving mechanism comprises a pushing motor (12), a screw (13), an internal thread bushing (14) and a shaft seat (15), the pushing motor (12) is fixed on the beam (7), the pushing motor (12) is connected with a control microcomputer in the electronic scale body (1), the screw (13) is arranged on the movable frame (11) in a penetrating manner, the screw (13) is connected with the movable frame (11) through the internal thread bushing (14), one end of the screw (13) is fixedly connected to the output end of the pushing motor (12), and the other end of the screw is fixed on the fixed frame (8) through the shaft seat (15).

4. The dioxin standard solution device according to claim 1, wherein a sealing ring is provided between the solution cylinder (16) and the piston column (17).

5. The dioxin standard solution device according to claim 1, wherein a plurality of micro spray holes (21) are uniformly arranged on the titration surface of the titration nozzle (20).