CN213275464U

CN213275464U - Full-automatic headspace sample injector for dichloroethane residue detection

Info

Publication number: CN213275464U
Application number: CN202022029476.1U
Authority: CN
Inventors: 汪林; 张建武; 刘丽霞; 梁淑君
Original assignee: Guangdong Anyuan Dingsheng Detection Evaluation Co ltd
Current assignee: Guangdong Anyuan Dingsheng Detection Evaluation Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-05-25
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a full-automatic headspace sample injector for dichloroethane remains detection relates to dichloroethane and remains the detection area, the on-line screen storage device comprises a base, inner cavity of the base's middle part is provided with servo motor, and servo motor's middle part cover is equipped with the support frame, the left side fixedly connected with hydraulic rod of base bottom inner wall, hydraulic rod's top fixedly connected with loading board, the positive fixedly connected with ejector pin at loading board top, the middle part cover of ejector pin are equipped with the antifriction ring, the middle part at base top is provided with the cushion cap, the positive fixedly connected with axis of rotation of cushion cap bottom, the bilateral symmetry fixedly connected with at cushion cap top supports the cover. A full-automatic headspace sample injector for dichloroethane remains detection, make the sample pass the inside that sealed rubber ring got into the detection case through promoting the layer board, further promote the fixed sample of arc splint through electric putter, conveniently seal the detection, avoid the external air to sneak into in detecting the gas, influence detection effect.

Description

Full-automatic headspace sample injector for dichloroethane residue detection

Technical Field

The utility model relates to a dichloroethane remains the detection area, in particular to a full-automatic headspace sample injector that is used for dichloroethane to remain detection.

Background

The student supplies such as water color pens, pen cores, marking pens, erasers, correction fluid zipper file bags, plastic rulers, stationery boxes (bags), plastic book covers (films) and the like relate to the aspects of life, growth, education and the like of students and play an important role in the growth process of the students. Students, especially minor students, have relatively low perception of unsafe factors and weak self-protection consciousness, and are easily damaged by products, especially student products closely related to the products.

The method for detecting harmful substances in the student supplies in the prior art is long in time consumption, low in efficiency, high in organic solvent consumption, incapable of detecting multiple volatile toxic and harmful substances simultaneously, and not beneficial to quick response of laboratory detection and government supervision. The headspace sample injector is a convenient and fast sample pretreatment method in gas chromatography, and the principle is that a sample to be detected is placed in a closed container, volatile components are volatilized from a sample matrix through heating, balance is achieved in a gas phase and a liquid phase, and top gas is directly extracted for chromatographic analysis, so that the components and the content of the volatile components in the sample are detected, and harmful substances in student articles are conveniently detected. The existing gas extraction and transfer process is mainly carried out in air, so that external air is easily mixed into detection gas to influence the detection effect; and the heat is quickly lost, and the gas is partially liquefied.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a full-automatic headspace sample injector that is used for dichloroethane to remain detection, can effectively solve the problem in the background art.

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

a full-automatic headspace sample injector for dichloroethane residue detection comprises a base, wherein a servo motor is arranged in the middle of an inner cavity of the base, a support frame is sleeved in the middle of the servo motor, a hydraulic push rod is fixedly connected to the left side of the inner wall of the bottom of the base, a bearing plate is fixedly connected to the top end of the hydraulic push rod, a push rod is fixedly connected to the center of the top of the bearing plate, a wear-reducing ring is sleeved in the middle of the push rod, a bearing platform is arranged in the middle of the top of the base, a rotating shaft is fixedly connected to the center of the bottom of the bearing platform, two lateral symmetrical inner walls of the top of the bearing platform are fixedly connected with a support sleeve, sliding grooves are symmetrically formed in the middle of the inner walls of two sides of the support sleeve, a supporting plate is arranged at the bottom of the inner cavity of the support sleeve, the left side at base top is provided with the detection case, the left side fixedly connected with support column of detection case bottom, the middle part fixedly connected with sealing rubber ring of detection case bottom, the bottom symmetry fixedly connected with electric putter of detection case both sides inner wall, two the relative one end symmetry fixedly connected with arc splint of electric putter, the middle part fixed mounting of detection case right side inner wall has heating element, the centre fixed mounting at detection case top has the determine module.

Preferably, the servo motor is closely attached to and fixedly connected with the wall body of the support frame, the bottom end of the support frame is fixedly connected to the inner wall of the bottom of the base, the output shaft extends from the top of the servo motor, the bottom end of the rotating shaft penetrates through the wall body of the top of the base and extends into the base, the rotating shaft is rotatably connected with the wall body of the base through a bearing, and the bottom end of the rotating shaft is connected with the top end of the output shaft of the servo motor through a coupling.

Preferably, the top end of the ejector rod penetrates through the wall body at the top of the base and extends to the outer side of the top of the base, the antifriction ring is arranged between the ejector rod and the wall body of the base, the antifriction ring is tightly attached and fixedly connected with the wall body of the base, and the ejector rod is tightly attached to the wall body of the inner ring of the antifriction ring.

Preferably, the bottom fixed connection of support column is on the outer wall at base top, the top of sealed rubber ring runs through the outer wall of detection case bottom and extends to the inside of detection case, and its top and bottom of inner circle intercommunication of sealed rubber ring, two the arc splint set up the both sides at sealed rubber ring top respectively.

Preferably, the left end of the bearing platform extends to the right side of the bottom of the detection box, the bottom end of the support sleeve penetrates through the wall body of the bearing platform and extends to the outer side of the bottom of the bearing platform, the support sleeve is of a cavity structure with the top and the bottom communicated with the outside, the support sleeve on the left side is arranged corresponding to the sealing rubber ring, and the support sleeve on the left side is arranged corresponding to the ejector rod.

Preferably, the wall body of spacing ring outer lane laminating support cover front, the back and the inner wall and the fixed connection of the left and right sides, the inner circle and the ejector pin looks adaptation of spacing ring, extension spring's bottom fixed connection is on the outer wall at spacing ring top, the front of layer board, the back and the laminating of the left and right sides support the inner wall of cover, two the one end that the layer board was kept away from to the slider extends to the inside of two spouts respectively and agrees with the inner wall of spout.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, it is rotatory to drive the cushion cap distance through servo motor drive axis of rotation, it removes to the top of ejector pin to conveniently drive the support cover of different positions, promote the ejector pin through hydraulic push rod and rise, the ejector pin gets into the inside of supporting the cover via the spacing ring, promote the layer board then and make the sample pass the inside that sealed rubber ring got into the detection case, further promote the fixed sample of arc splint through electric putter, conveniently seal the detection, avoid external air sneak into in detecting the gas, influence detection effect, it is fast to avoid appearing the heat scattering and disappearing simultaneously, there is the condition of partial liquefaction in the gas, slider through setting up removes inside the spout, provide the direction for the lift of layer board, make the removal of layer board steady, through the extension spring who sets up, sample after detecting resets and provides the pulling force.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of the present invention at A in FIG. 1;

fig. 3 is a schematic structural view of the support sleeve of the present invention.

In the figure: 1. a base; 2. a servo motor; 3. a support frame; 4. a hydraulic push rod; 5. a carrier plate; 6. a top rod; 7. a wear ring; 8. a rotating shaft; 9. a bearing platform; 10. a support sleeve; 11. a chute; 12. a support plate; 13. a slider; 14. an extension spring; 15. a limiting ring; 16. a detection box; 17. a support pillar; 18. sealing the rubber ring; 19. an electric push rod; 20. an arc-shaped splint; 21. a heating assembly; 22. and a detection component.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or 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.

As shown in figures 1-3, a full-automatic headspace sample injector for dichloroethane residue detection comprises a base 1, a servo motor 2 is arranged in the middle of an inner cavity of the base 1, a support frame 3 is sleeved in the middle of the servo motor 2, the servo motor 2 is tightly attached and fixedly connected with a wall body of the support frame 3, the bottom end of the support frame 3 is fixedly connected to the inner wall of the bottom of the base 1, an output shaft extends from the top of the servo motor 2, a hydraulic push rod 4 is fixedly connected to the left side of the inner wall of the bottom of the base 1, a bearing plate 5 is fixedly connected to the top end of the hydraulic push rod 4, a top rod 6 is fixedly connected to the center of the top of the bearing plate 5, a wear-reducing ring 7 is sleeved in the middle of the top rod 6, the top end of the top rod 6 penetrates through the wall body of the top of the base 1 and extends to the outer side of the top of the base 1, the, the ejector pin 6 closely laminates with the wall body of the inner circle of antifriction ring 7, and the middle part at base 1 top is provided with cushion cap 9, and the centre fixedly connected with axis of rotation 8 of cushion cap 9 bottom, the bottom of axis of rotation 8 run through the wall body at base 1 top and extend to the inside of base 1, and axis of rotation 8 passes through the bearing rotation with the wall body of base 1 and is connected, and the bottom of axis of rotation 8 is connected through the shaft coupling with the top of servo motor 2 output shaft.

The two sides of the top of the bearing platform 9 are symmetrically and fixedly connected with support sleeves 10, the left end of the bearing platform 9 extends to the right side of the bottom of the detection box 16, the bottom end of each support sleeve 10 penetrates through the wall body of the bearing platform 9 and extends to the outer side of the bottom of the bearing platform 9, in the actual manufacturing process, the number of the support sleeves 10 is not less than twelve, the support sleeves 10 are arranged on the bearing platform 9 in an annular and equidistant mode, the support sleeves 10 are of a cavity structure, the top and the bottom of each support sleeve are communicated with the outside, the left support sleeves 10 are arranged corresponding to the sealing rubber rings 18, the left support sleeves 10 are arranged corresponding to the ejector rods 6, sliding grooves 11 are symmetrically formed in the middles of the inner walls of the two sides of each support sleeve 10, the bottom of an inner cavity of each support sleeve 10 is provided with a supporting plate 12, the middles of the two sides of each supporting plate 12 are symmetrically and fixedly connected with, The inner walls of the back and the left and right sides are fixedly connected, the inner ring of the limit ring 15 is matched with the ejector rod 6, the bottom end of the extension spring 14 is fixedly connected to the outer wall of the top of the limit ring 15, the front, the back and the left and right sides of the supporting plate 12 are attached to the inner wall of the supporting sleeve 10, and one ends of the two sliding blocks 13, which are far away from the supporting plate 12, extend to the inner parts of the two sliding grooves 11 respectively and are matched with the inner walls of the sliding grooves 11.

The left side at 1 top of base is provided with detection case 16, the left side fixedly connected with support column 17 of detection case 16 bottom, the middle part fixedly connected with sealing rubber ring 18 of detection case 16 bottom, the bottom symmetry fixedly connected with electric putter 19 of detection case 16 both sides inner wall, two electric putter 19 relative one end symmetry fixedly connected with arc splint 20, the bottom fixed connection of support column 17 is on the outer wall at 1 top of base, the top of sealing rubber ring 18 runs through the outer wall of detection case 16 bottom and extends to the inside of detection case 16, the inner circle of sealing rubber ring 18 feeds through its top and bottom, two arc splint 20 set up the both sides at sealing rubber ring 18 top respectively, the middle part fixed mounting of detection case 16 right side inner wall has heating element 21, the centre fixed mounting at detection case 16 top has detection element 22.

It should be noted that, the utility model relates to a full-automatic headspace sample injector for dichloroethane residue detection, when in use, a sample is placed in the support sleeve 10 to support the sample by the support plate 12, the rotating shaft 8 is driven by the servo motor 2 to drive the bearing platform 9 to rotate at a fixed distance, the support sleeve 10 at different positions is conveniently driven to move to the top of the ejector rod 6, the ejector rod 6 is pushed to rise by the hydraulic push rod 4, the ejector rod 6 enters the support sleeve 10 through the spacing ring 15, then the support plate 12 is pushed to make the sample pass through the sealing rubber ring 18 to enter the detection box 16, further the arc-shaped clamp plate 20 is pushed by the electric push rod 19 to fix the sample, the sealing detection is convenient, the external air is prevented from being mixed into the detection gas, the detection effect is influenced, meanwhile, the situations that the heat is lost fast and the gas is liquefied partially are avoided, the slide block 13 is moved in the, the lifting of the supporting plate 12 is guided, the supporting plate 12 moves smoothly, and the tension spring 14 is arranged to provide tension for the reset of the detected sample.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a full-automatic headspace sample injector for dichloroethane residue detects, includes base (1), its characterized in that: the middle part of the inner cavity of the base (1) is provided with a servo motor (2), the middle part of the servo motor (2) is sleeved with a support frame (3), the left side of the inner wall of the bottom of the base (1) is fixedly connected with a hydraulic push rod (4), the top end of the hydraulic push rod (4) is fixedly connected with a bearing plate (5), the center of the top part of the bearing plate (5) is fixedly connected with a push rod (6), the middle part of the push rod (6) is sleeved with a friction reducing ring (7), the middle part of the top part of the base (1) is provided with a bearing platform (9), the center of the bottom part of the bearing platform (9) is fixedly connected with a rotating shaft (8), the bilateral symmetry of the top part of the bearing platform (9) is fixedly connected with a support sleeve (10), the middle part of the bilateral symmetry of the inner wall of the, the middle parts of the two sides of the supporting plate (12) are symmetrically and fixedly connected with sliding blocks (13), the bottom of the supporting plate (12) is fixedly connected with an extension spring (14), the bottom of the supporting plate (12) is provided with a limiting ring (15), the left side of the top of the base (1) is provided with a detection box (16), a supporting column (17) is fixedly connected to the left side of the bottom of the detection box (16), a sealing rubber ring (18) is fixedly connected to the middle of the bottom of the detection box (16), the bottoms of the inner walls of the two sides of the detection box (16) are symmetrically and fixedly connected with electric push rods (19), the opposite ends of the two electric push rods (19) are symmetrically and fixedly connected with arc-shaped clamping plates (20), a heating component (21) is fixedly arranged in the middle of the inner wall of the right side of the detection box (16), and a detection assembly (22) is fixedly arranged in the middle of the top of the detection box (16).

2. The fully automatic headspace sampler for dichloroethane residual detection of claim 1, characterized in that: the wall body of servo motor (2) and support frame (3) is close to be laminated and fixed connection, the bottom fixed connection of support frame (3) is on the inner wall of base (1) bottom, the top of servo motor (2) is extended there is the output shaft, the bottom of axis of rotation (8) runs through the wall body at base (1) top and extends to the inside of base (1), and axis of rotation (8) pass through the bearing rotation with the wall body of base (1) and are connected, and the bottom of axis of rotation (8) is connected through the shaft coupling with the top of servo motor (2) output shaft.

3. The fully automatic headspace sampler for dichloroethane residual detection of claim 1, characterized in that: the top of ejector pin (6) runs through the wall body at base (1) top and extends to the outside at base (1) top, antifriction ring (7) set up between the wall body of ejector pin (6) and base (1), and antifriction ring (7) and the wall body of base (1) are close-fitting and fixed connection, and the wall body of ejector pin (6) and antifriction ring (7) inner circle is closely laminated.

4. The fully automatic headspace sampler for dichloroethane residual detection of claim 3, characterized in that: the bottom fixed connection of support column (17) is on the outer wall at base (1) top, the top of sealed rubber ring (18) runs through the outer wall of detection case (16) bottom and extends to the inside of detection case (16), and the inner circle of sealed rubber ring (18) communicates its top and bottom, two arc splint (20) set up the both sides at sealed rubber ring (18) top respectively.

5. The fully automatic headspace sampler for dichloroethane residual detection according to claim 4, characterized in that: the left end of cushion cap (9) extends to the right side of detection case (16) bottom, the bottom of supporting sleeve (10) runs through the wall body of cushion cap (9) and extends to the outside of cushion cap (9) bottom, supports the cavity structure that cover (10) are linked together with the external world for top and bottom, and left supporting sleeve (10) and sealed rubber ring (18) correspond the setting, and left supporting sleeve (10) and ejector pin (6) correspond the setting.

6. The fully automatic headspace sampler for dichloroethane residual detection of claim 5, characterized in that: the wall body laminating of spacing ring (15) outer lane supports the inner wall and the fixed connection of cover (10) front, back and left and right sides, the inner circle and ejector pin (6) looks adaptation of spacing ring (15), the bottom fixed connection of extension spring (14) is on the outer wall at spacing ring (15) top, the inner wall of cover (10), two are supported in the laminating of the front of layer board (12), back and left and right sides the one end that layer board (12) were kept away from in slider (13) extends to the inside of two spout (11) respectively and agrees with the inner wall of spout (11).