CN219320066U

CN219320066U - Portable acidity detector

Info

Publication number: CN219320066U
Application number: CN202223076544.5U
Authority: CN
Inventors: 张燕金; 王祥达; 滕世国; 李洪伟; 黄子科; 杜阳萍
Original assignee: Shaoguan East Sunshine Technology R&D Co Ltd
Current assignee: Shaoguan East Sunshine Technology R&D Co Ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-07-07
Anticipated expiration: 2032-11-17

Abstract

The utility model relates to the technical field of PH value measurement, in particular to a portable acidity detector which comprises a main body shell, a driving mechanism, a sample table for placing PH test paper and a color sensor, wherein the sample table is provided with a color sensor; the main body shell is provided with a detection cavity, and the end part of the main body shell is provided with a through hole communicated with the detection cavity; the sample table is positioned in the detection cavity, and the driving mechanism is arranged on the main body shell and used for driving the sample table to extend out of the detection cavity through the through hole; the color sensor is arranged in the detection cavity and used for detecting the color of the PH test paper. The utility model overcomes the defect that the detection cannot be performed immediately after the sampling in the prior art, and the driving mechanism can immediately drive the PH test paper on the sample stage to move into the detection cavity for detection after the sampling is finished, so that the detection efficiency is improved; the portable detection device is easy to operate, can be used for detection at any time and any place, and has strong practicability.

Description

Portable acidity detector

Technical Field

The utility model relates to the technical field of pH value measurement, in particular to a portable acidity detector.

Background

The production of the formed foil and the corrosion foil needs to use a large amount of acid liquid, the acidity of the acid liquid used for processing different foils is different, each acid liquid is formed by blending acid and water with different components and proportions in a blending tank, and then the acid liquid is conveyed into an electrolytic tank of a corresponding production line through a conveying pipeline. The acidic liquid is inevitably splashed out or overflowed from the electrolytic tank in the foil processing process, and liquid leakage can occur in the conveying pipeline, and because the layout of the blending tank and the electrolytic tank of each production line is centralized, when the unknown liquid appears in the production area, the unknown liquid is difficult to judge whether the acidic liquid or the water, or which electrolytic tank overflows, or which conveying pipeline leaks, the acidity detection needs to be performed on the unknown liquid, so that faults are eliminated.

The PH value detector disclosed in the prior art comprises a box body, a detection container, a liquid storage container, a liquid suction device and a waste liquid collection device, wherein the detection container, the liquid storage container, the liquid suction device and the waste liquid collection device are arranged in the box body; the box body is provided with a visual window; the liquid storage container is used for storing a color reagent; the detection container is used for mixing the reagent to be detected and the chromogenic reagent, the detection container is arranged close to the visual window, and a visual area is arranged on the side wall of the detection container at the position corresponding to the visual window; the liquid suction device is communicated with the detection container and the liquid storage container and is used for sucking the color reagent in the liquid storage container to the detection container; the waste liquid collecting device is communicated with the detection container and is used for collecting waste liquid after the chromogenic reaction of the reagent to be detected and the chromogenic reagent.

The detector in the prior art needs to sample the unknown liquid before use, and then drops the sample into the detection container for detection during use. Because of the inconvenience of passing between production lines and the difficulty of sampling when the amount of unknown liquid is too small, workers will use sampling tools to collect samples and send them to a laboratory for detection with such detectors only when the amount of unknown liquid is large. However, a certain time is consumed from sampling to detection, and sometimes the optimal time for troubleshooting is missed due to the fact that the liquid acidity information cannot be obtained in time, and finally production loss is caused.

Disclosure of Invention

Aiming at the problems that in the prior art, the acidity information of the liquid cannot be obtained in time due to the fact that the acidity information of the liquid cannot be detected immediately after sampling, and the optimal time for troubleshooting is missed, the utility model provides a portable acidity detector which can sample only a small amount of unknown liquid and can detect the acidity of the sample immediately after the sample is acquired.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

a portable acidity detector comprises a main body shell, a driving mechanism, a sample table for placing PH test paper and a color sensor; the main body shell is provided with a detection cavity, and the end part of the main body shell is provided with a through hole communicated with the detection cavity; the sample table is positioned in the detection cavity, and the driving mechanism is arranged on the main body shell and used for driving the sample table to extend out of the detection cavity through the through opening; the color sensor is arranged in the detection cavity and used for detecting the color of the PH test paper.

In the technical scheme, when unknown liquid appears in the production field, the driving mechanism is started to drive the sample platform to move out of the detection cavity through the through hole, the PH test paper is placed on the sample platform, one part of the PH test paper is supported by the sample platform, and the other part of the PH test paper is suspended outside the sample platform; the detector is extended to the position of the unknown liquid, and the unknown liquid is adsorbed on the suspended part of the PH test paper to finish sampling; after the PH test paper is fixed in color, the driving mechanism drives the sample stage to move into the detection cavity through the through hole, so that the PH test paper moves into the detection range of the color sensor; after the color sensor distinguishes the color development of the PH test paper, the corresponding acidity is obtained according to the color distinguished by the color sensor; after the detection is finished, the driving mechanism drives the sample table to move out of the detection cavity, and a worker takes the protective glove to take the PH test paper off the sample table and clean the PH test paper, and then drives the sample table to move into the detection cavity; and finally, judging the source of the unknown liquid according to the measured acidity data, and then maintaining the corresponding production line or conveying pipeline. The detector can integrate sampling and detection functions, the PH test paper clamped on the sample table is utilized to adsorb and sample unknown liquid, the driving mechanism can immediately send the sample into the detection cavity for detection, sampling and detection are continuously carried out, and the accuracy of manually judging the color is higher compared with that of the PH test paper detected by the color sensor, so that errors caused by manual misreading are avoided, and detection data are more accurate.

Preferably, the sample stage is provided with a latch for penetrating the PH test paper. When the PH test paper is placed, the latch penetrates through the PH test paper, so that the PH test paper is fixed on the sample table, and the PH test paper is prevented from sliding off the sample table in the process of collecting unknown liquid.

Preferably, the device further comprises a limiting block, wherein a clamping groove is formed in the limiting block, and the clamping groove can be matched with the clamping tooth. After the PH test paper is penetrated on the latch, the limiting block is clamped with the latch, so that the PH test paper is pressed on the sample table, and the PH test paper is prevented from moving to the top end of the latch to be too close to the color sensor to influence the detection result.

Preferably, the limiting block is made of an anti-corrosion rubber material. The anti-corrosion rubber material has certain anti-corrosion property and elasticity, and is not easy to deform and damage after repeated disassembly and assembly.

Preferably, the driving mechanism may be one of a synchronous belt driving mechanism, an electric push rod, a screw rod transmission mechanism and a gear rack transmission mechanism.

Preferably, the driving mechanism comprises a motor, a gear and a rack, an output shaft of the motor is coaxially connected with the gear, the gear is meshed with the rack, and one end of the rack is connected with one end of the sample stage. When the motor is started, the gear rotates along with the output shaft of the motor and drives the rack to translate, so that the sample stage is driven to pass through the through hole to enter and exit the detection cavity, when a sample is collected, the motor drives the gear to rotate and drive the rack and the sample stage to move out of the detection cavity from the detection cavity through the through hole, and after the sample collection is finished, the motor drives the gear to rotate in a reversing manner and drive the rack and the sample stage to move out of the detection cavity from the detection cavity to the detection cavity through the through hole, so that the PH test paper is stopped in the detection range of the color sensor. The gear-rack transmission mechanism consisting of the motor, the gear and the rack is compact in structure, is favorable for reducing the volume of the detector, is stable in transmission and small in transmission noise, and can ensure that PH test paper can be moved into the detection range of the color sensor in each detection.

Preferably, the main body shell comprises a measuring round rod and a mounting shell protruding out of the side face of the measuring round rod, the detecting cavity and the through hole are formed in the measuring round rod, the mounting shell is provided with a mounting cavity communicated with the detecting cavity, and the motor is mounted in the mounting cavity. The volume of measuring round bar can be reduced after the installation shell is arranged, unnecessary space waste is avoided, and the detector is more exquisite.

Preferably, the main body shell is provided with a charging port. The detector is charged through the charging port, and the battery is not required to be replaced frequently, so that the detector is more economical and environment-friendly.

Preferably, the main body shell is provided with a digital display screen. The color information received by the color sensor is displayed through the digital display screen after being checked, so that a worker can quickly acquire the detection information, and the fault checking time is saved.

Preferably, a holding part is connected to one end of the main body shell far away from the through hole, and a plurality of protrusions are arranged on the surface of the holding part. After the handheld part is arranged, a worker can pinch the handheld part to enable the detector to extend into the position where the unknown liquid is located, so that the risk of contact between the hands of the person and the unknown liquid is reduced, meanwhile, the friction force during holding can be increased by the protrusions on the surface of the handheld part, and the detector is prevented from sliding off the hands during sampling.

Preferably, the hand-held part is provided with a hanging buckle. The hanging buckle is favorable for the arrangement and storage of the detector, and the portability of the detector can be improved.

The utility model has the beneficial effects that: after the PH test paper is placed on the sample table, the PH test paper can be contacted with unknown liquid on site to finish sampling, sampling tools such as a dropper are not needed, the sampling step is simplified, and a small amount of unknown liquid can be easily collected; after the sampling is finished, the driving mechanism can immediately drive the PH test paper on the sample table to move into the detection cavity for detection, so that the detection efficiency is improved, the detection result is obtained on the spot by on-spot sampling, and the judging time of faults on the production line is shortened; the limiting block is detachably connected with the sample table, and the PH test paper is convenient to install, fix and detach; the device is convenient to carry, and can detect unknown liquid in a foil production workshop at any time and any place; the operation is simple, the detection speed is high, the practicability is strong, and the method is suitable for various occasions needing to detect the acidity of the liquid.

Drawings

FIG. 1 is a schematic view of a portable acidity detector sample stage;

FIG. 2 is a schematic view of the structure of a portable acidity detector sample stage;

FIG. 3 is a schematic view of the structure of the rack, sample stage and latch;

FIG. 4 is a cross-sectional view of the sample stage and stopper after mating;

FIG. 5 is a schematic view of the exterior first view of a portable acidity detector sample station;

FIG. 6 is a schematic view of the exterior second view of a portable acidity detector sample station;

in the accompanying drawings: 1-a main body housing; 101-a detection chamber; 102-through openings; 103-a charging port; 2-a driving mechanism; 201-a motor; 202-a gear; 203-a rack; 3-sample stage; a 4-color sensor; 5-latch teeth; 6-limiting blocks; 7-measuring a round rod; 8-mounting a shell; 801-a mounting cavity; 9-a digital display screen; 10-a hand-held part; 11-protrusions; 12-hanging buckle; 13-lithium battery; 14-a PLC control panel; 15-a button; 16-PH test paper.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are orientations or positional relationships indicated by terms "upper", "lower", "left", "right", "long", "short", etc., based on the orientations or positional relationships shown in the drawings, this is merely for convenience in describing the present utility model and simplifying the description, and is not an indication or suggestion that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and that it is possible for those of ordinary skill in the art to understand the specific meaning of the terms described above according to specific circumstances.

The technical scheme of the utility model is further specifically described by the following specific embodiments with reference to the accompanying drawings:

example 1

A portable acidity detector as shown in fig. 1 and 2, comprising a main body casing 1, a driving mechanism 2, a sample stage 3 for placing a PH test paper 16, and a color sensor 4; the main body shell 1 is provided with a detection cavity 101, and the end part of the main body shell 1 is provided with a through hole 102 communicated with the detection cavity 101; the sample stage 3 is positioned in the detection cavity 101, and the driving mechanism 2 is arranged on the main body shell 1 and used for driving the sample stage 3 to extend out of the detection cavity 101 through the through hole 102; the color sensor 4 is installed in the detection chamber 101 for detecting the color of the PH paper 16.

The working principle or workflow of the present embodiment: when unknown liquid appears in the production field, the driving mechanism 2 is started to drive the sample platform 3 to move out of the detection cavity 101 through the through hole 102, the PH test paper 16 is placed on the sample platform 3, one part of the PH test paper 16 is supported by the sample platform 3, and the other part of the PH test paper 16 is suspended outside the sample platform 3; the detector is extended to the position of the unknown liquid, and the unknown liquid is adsorbed on the suspended part of the PH test paper 16, so that the sampling is completed; after the PH test paper 16 is fixed in color, the driving mechanism 2 drives the sample stage 3 to move into the detection cavity 101 through the port 102, so that the PH test paper 16 moves into the detection range of the color sensor 4; after the color sensor 4 distinguishes the color development of the PH test paper 16, the corresponding acidity is obtained according to the color distinguished by the color sensor 4; after the detection is finished, the driving mechanism 2 drives the sample table 3 to move out of the detection cavity 101, a worker takes the protective glove to take the PH test paper 16 off the sample table 3 and clean the PH test paper, and the driving mechanism 2 drives the sample table 3 to move into the detection cavity 101; and finally, judging the source of the unknown liquid according to the measured acidity data, and then maintaining the corresponding production line or conveying pipeline.

The beneficial effects of this embodiment are: after the PH test paper is placed on the sample table, the PH test paper can be contacted with unknown liquid on site to finish sampling, sampling tools such as a dropper are not needed, the sampling step is simplified, and a small amount of unknown liquid can be easily collected; after the sampling is finished, the driving mechanism can immediately drive the PH test paper on the sample table to move into the detection cavity for detection, so that the detection efficiency is improved; compared with manual color judgment, the color sensor is used for detecting the color of the PH test paper, so that errors caused by manual misreading are avoided, and the detection data are more accurate; the detection result is obtained by on-site sampling on site, so that the judging time of faults on the production line is shortened.

Example 2

In this embodiment, on the basis of embodiment 1, as shown in fig. 3, two latches 5 for penetrating the PH test paper are provided on the sample stage 3, specifically, one end of each latch 5 far away from the sample stage 3 is spherical, so that accidental injury caused by the latches during loading and unloading of the PH test paper can be avoided. When the PH test paper is placed, the latch 5 penetrates through the PH test paper, so that the PH test paper is fixed on the sample table 3, and the PH test paper is prevented from sliding off the sample table 3 or rotating on the sample table 3 in the process of collecting unknown liquid.

Further, the sample stage 3 and the stopper 6 are identical in shape and size and are semi-cylindrical, as shown in fig. 4, the stopper 6 is provided with a clamping groove, the clamping groove can be connected with the clamping tooth 5 in a clamping manner, and the stopper 6 and the sample stage 3 are clamped to form a cylinder. After the PH test paper is penetrated on the latch 5, the limiting block 6 is clamped with the latch 5, so that the PH test paper is pressed on the sample table 3, and the PH test paper is prevented from moving to the top end of the latch 5 to be too close to the color sensor 4 so as to influence the detection result.

Specifically, the stopper 6 is made of an anti-corrosion rubber material. The anti-corrosion rubber material has certain anti-corrosion property and elasticity, and is not easy to deform and damage after repeated disassembly and assembly.

Specifically, as shown in fig. 1, the driving mechanism 2 includes a motor 201, a gear 202 and a rack 203, an output shaft of the motor 201 is coaxially connected with the gear 202, the gear 202 is meshed with the rack 203, and the rack 203 and the sample stage 3 are integrally formed. When the motor 201 is started, the gear 202 rotates along with the output shaft of the motor 201 and drives the rack 203 to translate, so that the sample stage 3 is driven to enter and exit the detection cavity 101 through the through hole 102, when a sample is collected, the motor 201 drives the gear 202 to rotate and drive the rack 203 and the sample stage 3 to move from the inside of the detection cavity 101 to the outside of the detection cavity 101 through the through hole 102, and after the sample collection is finished, the motor 201 drives the gear 202 to rotate in a reversing manner and drive the rack 203 and the sample stage 3 to move from the outside of the detection cavity 101 to the inside of the detection cavity 101 through the through hole 102, so that the PH test paper is stopped in the detection range of the color sensor 4. The gear 202 and rack 203 transmission mechanism consisting of the motor 201, the gear 202 and the rack 203 is compact in structure, is favorable for reducing the volume of the detector, is stable in transmission and small in transmission noise, and can ensure that PH test paper can be moved into the detection range of the color sensor 4 in each detection.

Specifically, the main body casing 1 includes the measuring round bar 7 and projects in the installation shell 8 of measuring round bar 7 side, detects chamber 101 and opening 102 and all set up on measuring round bar 7, and installation shell 8 is equipped with the installation cavity 801 that feeds through and detects chamber 101, and motor 201 installs in installation cavity 801. The volume of measuring round bar 7 can be reduced after setting up installation shell 8, avoid unnecessary space extravagant, make this detector more exquisite.

Other features, operating principles, and advantageous effects of the present embodiment are consistent with those of embodiment 1.

Example 3

In this embodiment, based on embodiment 2, as shown in fig. 1, a lithium battery pack 13 and a PLC control board 14 are disposed in a detection cavity 101, a color sensor 4 and a motor 201 are respectively electrically connected with the PLC control board 14, and in combination with fig. 5 and 6, a charging port 103, a button 15 and a digital display screen 9 are disposed on a measurement round bar 7, and the digital display screen 9 is electrically connected with the color sensor 4 through the PLC control board 14. The lithium battery pack 13 provides electric energy for the PLC control panel 14 and the motor 201, the button 15 controls the start and stop of the motor 201, the PLC control panel 14 controls the steering and the number of turns of the driving motor 201, the sample stage 3 can extend to a specific position outside the detection cavity 101, PH test paper on the sample stage 3 can be accurately stopped in the detection range of the color sensor 4, the color sensor 4 receives a color development signal and then transmits the signal to the PLC control panel 14, PH value information is obtained and then displayed through the digital display screen 9, so that a worker can quickly acquire detection information, and the trouble shooting time is saved.

Specifically, a holding portion 10 is connected to an end of the main body casing 1 away from the through hole 102, and a plurality of protrusions 11 are provided on an outer peripheral surface of the holding portion 10, wherein the protrusions 11 are perpendicular to an axis of the holding portion 10. After the handheld part 10 is arranged, a worker can pinch the handheld part 10 to stretch the detector to the position where the unknown liquid is located, so that the risk of contact between the hand of the person and the unknown liquid is reduced, and meanwhile, the friction force during hand holding can be increased by the protrusions 11 on the surface of the handheld part 10, so that the detector can be prevented from sliding off the hand during sampling.

Specifically, as shown in fig. 5, the hand-held portion 10 is provided with a hanging buckle 12. The hanging buckle 12 facilitates the sorting and storage of the detector and can improve the portability of the detector.

Other features, operating principles and advantageous effects of the present embodiment are consistent with those of embodiment 2.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The portable acidity detector is characterized by comprising a main body shell (1), a driving mechanism (2), a sample table (3) for placing PH test paper and a color sensor (4); the main body shell (1) is provided with a detection cavity (101), and the end part of the main body shell (1) is provided with a through hole (102) communicated with the detection cavity (101); the sample table (3) is positioned in the detection cavity (101), and the driving mechanism (2) is arranged on the main body shell (1) and is used for driving the sample table (3) to extend out of the detection cavity (101) through the through hole (102); the color sensor (4) is arranged in the detection cavity (101) and is used for detecting the color of the PH test paper.

2. The portable acidity detector according to claim 1, characterized in that the sample stage (3) is provided with a latch (5) for penetrating the PH paper.

3. The portable acidity detector according to claim 2, further comprising a limiting block (6), wherein a clamping groove is formed in the limiting block (6), and the clamping groove can be in snap connection with the clamping tooth (5).

4. A portable acidity detector according to claim 3, characterized in that the stopper (6) is of anti-corrosive rubber material.

5. The portable acidity detector according to claim 1, characterized in that the driving mechanism (2) comprises a motor (201), a gear (202) and a rack (203), an output shaft of the motor (201) is coaxially connected with the gear (202), the gear (202) is meshed with the rack (203), and one end of the rack (203) is connected with one end of the sample stage (3).

6. The portable acidity detector according to claim 5, characterized in that the main body casing (1) comprises a measuring round bar (7) and a mounting shell (8) protruding out of the side surface of the measuring round bar (7), the detecting cavity (101) and the through opening (102) are both arranged on the measuring round bar (7), the mounting shell (8) is provided with a mounting cavity (801) communicated with the detecting cavity (101), and the motor (201) is mounted in the mounting cavity (801).

7. The portable acidity detector according to claim 1, characterized in that the main body casing (1) is provided with a charging port (103).

8. The portable acidity detector according to claim 1, characterized in that the main body casing (1) is provided with a digital display screen (9), and the color sensor (4) is electrically connected with the digital display screen (9).

9. The portable acidity detector according to any one of claims 1 to 8, characterized in that one end of the main body casing (1) away from the through hole (102) is connected with a hand-held part (10), and a plurality of protrusions (11) are provided on the surface of the hand-held part (10).

10. The portable acidity detector according to claim 9, characterized in that the hand-held part (10) is provided with a hanging buckle (12).