CN209858472U - In-tank coating integrity tester - Google Patents

In-tank coating integrity tester Download PDF

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Publication number
CN209858472U
CN209858472U CN201920446765.6U CN201920446765U CN209858472U CN 209858472 U CN209858472 U CN 209858472U CN 201920446765 U CN201920446765 U CN 201920446765U CN 209858472 U CN209858472 U CN 209858472U
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China
Prior art keywords
needle
bottom plate
column
electrode
display controller
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CN201920446765.6U
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Chinese (zh)
Inventor
白仲文
李祝斌
谢锦彪
何炎新
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Jiayi Instrument (zhaoqing) Co Ltd
Guangdong Jiayi Instrument Group Co Ltd
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Jiayi Instrument (zhaoqing) Co Ltd
Guangdong Jiayi Instrument Group Co Ltd
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Priority to CN201920446765.6U priority Critical patent/CN209858472U/en
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Abstract

The utility model discloses an in-tank coating integrity tester, which comprises a host display controller and a tank body bracket electrically connected with the host display controller, wherein the tank body bracket comprises a bottom plate, a bottom scraping needle is arranged on the upper surface of the bottom plate near the middle position, and the bottom scraping needle is arranged in a shape like a Chinese character 'pin' and is electrically connected with the host display controller; the upper surface of the bottom plate is provided with a support upright column near the edge line, the support upright column consists of an outer upright column and an inner upright column, and the outer upright column can lift along the inner upright column and can realize the actions of lifting, forward rotating, reverse rotating and descending; the outer column is movably connected with a fixed arm, and a test probe and a water level probe are mounted on the bottom surface of one end, far away from the outer column, of the fixed arm. The utility model discloses the apparatus is easily operated, measures more sensitively, more reliably, more accurate, has effectively solved prior art's defect.

Description

In-tank coating integrity tester
Technical Field
The utility model relates to a bottle jar detects technical field, and more specifically the integrality apparatus that coats a film in jar that says so relates to.
Background
When a tank factory produces a tank, the integrity of a coating film in the tank needs to be detected, and if the coating film in the tank is incomplete, such as not compact or damaged, the content can corrode the metal of the tank, so that the quality and storage of products are affected. In order to ensure the quality safety of the metal packaging can in the shelf life, the inner wall of the metal can needs to be detected, and products with potential corrosion safety hazards are eliminated.
When the thickness and the uniformity of a coating film in an existing measuring tank body are measured, firstly, manual operation can be adopted, electrolyte is injected into the tank body, a handheld electrode is used for measuring, an anode extends into the electrolyte, a cathode is connected to a metal tank body in an abutting mode, and then the thickness and the uniformity of the coating film in the tank body are obtained through calculation through a computer processor. However, the method has the disadvantages of complicated measurement mode, high error probability and large error. Secondly, an internal coating integrity tester can be adopted, direct current voltage is introduced into the internal coating integrity tester to be 6.3V, the metal tank body is connected with the positive electrode, electrolyte solution is added into the metal tank body, a stainless steel bar is inserted into the metal tank body to be connected with the negative electrode, and the internal coating defect current value of the 4 th second is read. However, the existing detection instrument has the problems of poor operability, poor reliability, poor measurement accuracy, narrow application range and the like.
Therefore, how to improve the existing inner coating film integrity tester to solve the above technical defects becomes a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an integrality apparatus of filming in jar after improvement, this apparatus measure more sensitively, more reliable, more accurate, life is longer, can effectively solve above-mentioned technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an in-tank coating integrity tester comprises a host display controller and a tank body support electrically connected with the host display controller, wherein a clamp connecting wire used for being electrically connected with the host display controller is arranged on the tank body support, the tank body support comprises a bottom plate, bottom scraping needles are arranged on the upper surface of the bottom plate close to the middle position, and are distributed in a shape like a Chinese character 'pin' and electrically connected with the host display controller through the clamp connecting wire; the upper surface of the bottom plate is provided with a supporting upright column which is vertical to the bottom plate near the edge line, the supporting upright column consists of an outer upright column and an inner upright column, and the outer upright column can lift along the inner upright column and can realize the actions of lifting, forward rotating, reverse rotating and descending; the outer upright post is movably connected with a fixed arm, the fixed arm is perpendicular to the outer upright post, and the fixed arm is just positioned right above the bottom scraping needle when the outer upright post is in a descending state; two electrode needles are installed on the bottom surface of one end, far away from the outer stand column, of the two electrode needles, one longer electrode needle is a testing probe, the other shorter probe is a water level probe, and the electrode needles are electrically connected with the host display controller through the clamp connecting wire.
By adopting the technical scheme, the water level probe is additionally arranged on the tank body bracket of the utility model to measure the water level height, and the test can be started only by filling enough electrolyte into the sample tank to be tested to immerse the water level probe, thereby greatly increasing the accuracy of the test; the bottom scraping needles arranged on the bottom plate of the utility model are arranged in a shape like Chinese character 'pin', so that the bottom scraping needles can be in good conductive contact with a sample tank to be tested, and the bottom scraping needles are electrically connected with the host display controller to detect whether the sample tank is in contact with the bottom scraping needles to scrape through an outer coating film or not, if the contact is poor, the host display controller can display open circuit, the test is terminated, and the reliability and the accuracy of the test result are ensured; the fixing arm in the utility model can be adjusted rapidly to be suitable for different sample tank heights; the utility model provides an outer column can realize going up and down and can realize rising-forward rotation-reverse rotation-action that descends along the inner column, puts into in the sample jar before the convenient test when electrode needle stretches out the sample jar and takes out the sample jar after the test is accomplished.
On the basis of the technical scheme, the utility model discloses still can make following improvement:
preferably, one end of the fixing arm, which is connected with the outer upright post, is designed to be an opening structure, and the outer upright post penetrates through the opening structure and is in tight fit with the opening structure; a threaded hole matched with a hand screw is formed in the opening side face of the outermost end of the opening structure, the hand screw is unscrewed, the opening is opened, and the fixed arm moves up and down along the outer stand column; and screwing the hand screw, closing the opening and fixing the fixing arm.
Has the advantages that: by adopting the above technical scheme, make the fixed arm height of quick adjustable in order to be fit for different sample jar, during the use, unscrew the hand screw with the hand, can reciprocate the support arm along the outer column with the height-adjusting after the fixed arm opening opens, adjust suitable high back, it is fixed to realize the fixed arm with screwing up the hand screw with the hand.
Preferably, the electrode needle is the scalable structure, and flexible length can quick adjustment promptly, also can pull out the electrode needle and change to the height of different sample jars of adaptation of wider range, this structure is particularly suitable for the detection sample of jar body height such as spray tank.
Preferably, the fixed arm is provided with an electrode needle seat, and the electrode needle is in threaded connection with the electrode needle seat and is electrically connected with the electrode needle seat; the electrode needle seat is connected to the clamp connecting line through a connecting line.
Has the advantages that: the electrode needle and the electrode needle seat are connected through the threads, so that the electrode needle can be conveniently replaced by a user, and more preferably, a contraction rubber tube can be wrapped outside the joint of the electrode needle and the electrode needle seat, so that the situation that the replacement and the disassembly of the electrode needle are influenced by the fact that solutions such as electrolyte and the like are immersed into the threaded joint is prevented. The electrode needle seat on the fixed arm can be further protected by pouring and pouring sealant after being provided with the fixed connecting wire, so that the problem that the measured numerical value is inaccurate due to poor contact caused by the fact that the electric wire is corroded by solutions such as electrolyte is avoided.
Preferably, two electrode pins are installed on the fixed arm, the short electrode pin is a water level probe, the long electrode pin is a test probe, and a protective rubber sleeve is installed at the top end of the test probe, so that the phenomenon that when the height of the fixed arm is improperly adjusted, the test probe touches a sample tank to scratch an electrode pin coating when descending is avoided.
Preferably, the electrode needle connecting wire adopts a spiral winding wire, so that the length of the wire is convenient to shrink and change when the outer stand column is lifted and lowered.
Preferably, one of the inner column and the outer column is provided with a guide chute along the axial direction thereof, the top end or the bottom end of the guide chute is provided with a vertical chute position which is vertical to and communicated with the guide chute, and the other is provided with a slide block which is matched with the guide chute and the vertical chute position.
Has the advantages that: the outer upright post can lift along the inner upright post, a guide chute is processed on the inner upright post, the fixed arm and the outer upright post are lifted upwards together, after the vertical chute position at the upper end of the inner upright post is lifted, the fixed arm and the outer upright post are rotated by 90 degrees anticlockwise, a hand is loosened, and the fixed arm and the outer upright post can stay at the position; after the sample tank to be tested is placed in, the fixed arm and the outer stand column are rotated by 90 degrees along the forward needle by hands, and can descend along the sliding groove after reaching the vertical sliding groove position, and the electrode needle extends into the sample tank. Or the outer upright post can be lifted along the inner upright post, a guide chute is processed on the outer upright post, the fixed arm and the outer upright post are lifted upwards together, after the vertical chute position at the lower end of the outer upright post is lifted, the fixed arm and the outer upright post are rotated by 90 degrees anticlockwise, the hand is released, and the fixed arm and the outer upright post can be stopped at the position; after the sample tank to be tested is placed in, the fixed arm and the outer stand column are rotated by 90 degrees along the forward needle by hands, and can descend along the sliding groove after reaching the vertical sliding groove position, and the electrode needle extends into the sample tank.
Preferably, the outer column is provided with a guide chute along the axial direction thereof, the lower end of the guide chute is provided with a vertical chute position perpendicular to and communicated with the guide chute, and the inner column is provided with a slide block matched with the guide chute and the vertical chute position.
Has the advantages that: the outer upright post can lift along the inner upright post, a guide chute is processed on the outer upright post, the fixed arm and the outer upright post are lifted upwards together, after the vertical chute position at the lower end of the outer upright post is lifted, the fixed arm and the outer upright post are rotated by 90 degrees anticlockwise, a hand is loosened, and the fixed arm and the outer upright post can stay at the position; after the sample tank to be tested is placed in, the fixed arm and the outer stand column are rotated by 90 degrees along the forward needle by hands, and can descend along the sliding groove after reaching the vertical sliding groove position, and the electrode needle extends into the sample tank.
Preferably, the bottom plate is provided with a buffer rubber mat at the position contacted with the outer stand column, so that the outer stand column can be prevented from being collided and sounded when falling to be contacted with the bottom plate.
Preferably, a sealing rubber ring is arranged at the joint of the bottom scraping needle and the bottom plate; preferably, after the wiring detection of each corresponding part in the wiring slot on the bottom plate is correct, the protection of pouring and pouring sealant is carried out, so that the problem that the measurement value is inaccurate due to poor contact caused by the fact that the electric wire and the part wiring position are corroded by solutions such as electrolyte is prevented.
Preferably, the bottom scraping needles are arranged in a three-point upright column in a shape like a Chinese character 'pin', and the structure is suitable for detecting samples of two cans.
Preferably, the bottom scraping needles are arranged in a triangular shape, and the structure is suitable for detecting samples of three cans and spray cans.
Preferably, when the bottom scraping needles are arranged in a triangle three-point upright, external positioning support columns for supporting the sample tanks are arranged outside the bottom scraping needles, and the external positioning support columns are arranged in a triangle and detachably connected with the bottom plate; the connection positions of the external positioning support columns and the bottom plate are provided with a plurality of groups so as to be suitable for supporting sample tanks with different diameters, and the structure is suitable for detecting samples of two-piece tanks.
Has the advantages that: the external positioning support columns of the sample tanks are also arranged in a shape like a Chinese character 'pin', and a plurality of circles can be arranged at the connecting positions (such as screw hole positions) of the external positioning support columns and the bottom plate, so that the external positioning support columns can be arranged on another circle of screw hole positions for the sample tanks with different diameters.
Preferably, the external positioning support column can be further milled with a flat position, and the diameter of the sample tank body can be changed by inwards or outwards matching the three flat positions in the same circle of diameter screw hole positions.
Preferably, a positioning circular ring for supporting the sample tank is arranged outside the bottom scraping needle, and a positioning groove seat matched with the positioning circular ring is arranged on the bottom plate; the positioning circular rings are provided with a plurality of positioning circular rings according to different diameters so as to be suitable for supporting sample tanks with different diameters.
Has the advantages that: the above structure is suitable for supporting a spray can. In order to be suitable for spraying cans with different diameters, different positioning circular rings are adopted. The positioning groove seat matched with the positioning ring is installed on the bottom plate, when the positioning ring is used, the positioning ring is taken away by hands to replace the positioning rings with other diameters, and the positioning rings are placed in the positioning groove seat, so that the replacement is more convenient.
Preferably, when scraping the needle at the end and being three and arranging of article word, every the side of scraping the needle at the end all increases two auxiliary stay bars, auxiliary stay bar highly be less than scrape the needle at the end, this structure is suitable for the detection sample of three-piece jar class and spray tank class.
Has the advantages that: scrape the needle at every end and respectively increase two auxiliary stay bars at the side, and auxiliary stay bar height is scraped the needle than the end and is hanged down (preferred 1mm), can suitably support the sample jar, reduces the sample jar and inclines.
Preferably, still be equipped with the side around scraping the needle at the end and scrape the needle, adopt the utility model discloses when detecting three jars, because three jars are formed by lid and can body involution, increase the side and scrape the needle and can detect lid and can body and whether have good conductive contact.
Preferably, the tank body support is made of a plastic material, has a corrosion-resistant characteristic and is longer in service life.
Preferably, the host display controller directly detects the electrode pin terminal test voltage, so that accurate test voltage is ensured to be applied to the electrode, and the interference of system resistance is avoided. Specifically, the remote circuit feeds back the closed-loop monitoring of the sampling voltage circuit, directly monitors the feedback voltage of the test probe and the bottom scraping needle instead of the voltage at the output end of the circuit board, and avoids the voltage drop error introduced by the circuit impedance.
Preferably, the host display controller has three test modes of 4 seconds, continuity and customization, and provides a selectable and more accurate test method for operators.
Preferably, the voltage polarity of the test probe can be inverted by one key, so that the defect part can be conveniently observed and determined. When the defect part needs to be observed and determined, a voltage inversion button on a host display controller is pressed, the polarity of a test probe is changed, bubbles generated at the defect part are escaped under the action of electrolysis, and the defect position of the coating film in the tank can be determined by observing the bubbles.
Preferably, the host display controller is provided with an RS/232 serial communication interface, and can provide compatibility for a printer, a computer and data acquisition.
Preferably, the surface of the host display controller is additionally provided with a thin film key pad pasting, and the thin film key pad pasting can enable the host display controller to have good waterproof performance, more durability and better corrosion resistance.
According to the technical scheme, compared with the prior art, the utility model discloses an in-tank coating integrity tester is provided, this instrument compare in current equipment can measure the metal and expose more fast, measure more sensitively moreover, more reliable, more accurate (graduation 0.01mA, precision +/-2%), have anticorrosive characteristic, and life is longer, changes the observation and confirms the defect position.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of the overall structure of the instrument provided by the present invention.
Fig. 2 is a schematic diagram of a structure of a host display controller according to the present invention.
Fig. 3 is a schematic view of a two-piece can body support structure provided by the present invention.
Fig. 4 is a schematic diagram of a two-piece can body support structure provided by the present invention.
Fig. 5 is a schematic diagram of a support structure of a two-piece can body provided by the present invention.
Fig. 6 is a schematic view of a three-piece can body support structure provided by the present invention.
Fig. 7 is a schematic diagram of a support structure of a three-piece can body provided by the present invention.
Figure 8 the attached drawing is the utility model provides a spraying can body supporting structure sketch map.
Reference numerals:
100. the host displays the controller of the display device,
101. the system comprises a communication connector 102, a host box 103, a display screen 104, a charging connector 105, a foot switch wire 106, a clamp connecting wire 107, a power supply 108 and a key area;
200. a bracket of the tank body is arranged on the tank body,
201. the device comprises a clamp connecting wire, 202, a bottom plate, 203, a bottom scraping needle, 204, an outer upright post, 205, an inner upright post, 206, a fixing arm, 207, a test probe, 208, a water level probe, 209, a hand screw, 210, a buffer rubber pad, 211, a spiral winding wire, 212, an outer positioning support column, 213, an auxiliary support bar, 214, a positioning ring, 215, a positioning groove seat, 216, a fixing upright post, 217, a side scraping needle, 218 and a protective rubber sleeve;
300. and (4) a sample tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, the embodiment of the utility model discloses an integrality apparatus of filming in jar, including host computer display controller 100, jar body support 200 of being connected with host computer display controller 100 electricity, as shown in fig. 2, host computer display controller 100 includes communication joint 101, host computer box 102, display screen 103, the joint 104 that charges, foot switch line 105, anchor clamps connecting wire 106, power 107, press key zone 108, anchor clamps connecting wire 201 is connected on anchor clamps connecting wire 106 on host computer display controller 100 and the jar body support 200 and realizes the electricity of corresponding structure on host computer display controller 100 and the jar body support 200 and connect.
The can body holder 200 in this embodiment is specifically applied to a two-piece can type sample can 300.
As shown in fig. 3-5, the can body support 200 in this embodiment includes a bottom plate 202, a bottom scraping pin 203 is disposed on the upper surface of the bottom plate 202 near the middle position, the bottom scraping pin 203 is arranged in a three-point upright manner, and the bottom scraping pin 203 is electrically connected to the host display controller 100 through a clamp connection line 201, and is used to detect whether the sample can is in contact with the bottom scraping pin 203 to scrape through the outer coating film. The outside of scraping needle 203 at the end is equipped with the outside location support column 212 that is used for supporting the sample jar, outside location support column 212 adopt article word three-point upright column arrange equally and with the bottom plate 202 between be detachable connection, concrete connection is threaded connection, the screw position on the bottom plate 202 is equipped with multiunit (different circle), can install outside location support column 212 on the screw hole position of different circles to two jars of different diameters and realize to the adaptation supports the sample jar of different diameters. Furthermore, each external positioning support column 212 can be milled with a flat position, and the diameter of the sample tank body can be changed by inwards or outwards milling three flat positions in the same circle of diameter screw hole positions.
The upper surface of the bottom plate 202 is provided with a supporting upright column which is vertical to the bottom plate 202 and is close to the edge line of the bottom plate 202, the supporting upright column consists of an outer upright column 204 and an inner upright column 205, the outer upright column 204 is movably connected with a fixed arm 206, the fixed arm 206 is vertical to the outer upright column 204, and the fixed arm 206 is just positioned right above the bottom scraping needle 203 when the outer upright column 204 is in a descending state.
Outer column 204 is last swing joint has fixed arm 206, and concrete structure is: one end of the fixed arm 206 connected with the outer upright 204 is designed to be an opening structure, and the outer upright 204 passes through the opening structure and is tightly matched with the opening structure; the opening structure's outermost end opening side is equipped with on the side and is equipped with the screw hole with hand screw 209 complex, unscrews hand screw 209, and the opening opens, and fixed arm 206 reciprocates in order to adjust the height along outer column 204, adjusts suitable high back, screws hand screw 209, and the opening is closed, and fixed arm 206 realizes fixing.
Outer column 204 can realize going up and down and can realize rising-forward rotation-reverse rotation-action that descends along inner column 205, and the concrete structure is:
the inner column 205 is provided with a guide chute along the axial direction, the top end of the guide chute is provided with a vertical chute position which is vertical to and communicated with the guide chute, and the outer column 204 is provided with a slide block which is matched with the guide chute and the vertical chute position. The outer upright 204 can be lifted along the guide sliding groove on the inner upright 205 through the sliding block, the fixed arm 206 and the outer upright 204 are lifted upwards together, after the vertical sliding groove at the upper end of the inner upright 205 is lifted, the fixed arm 206 and the outer upright 204 are rotated counterclockwise by 90 degrees, the hand is released, and the fixed arm 206 and the outer upright 204 can stay at the position; after the sample tank to be tested is placed in, the fixing arm 206 and the outer upright column 204 are rotated by 90 degrees along the forward needle by hand, and can descend along the sliding groove after reaching the vertical sliding groove position, and the electrode needle extends into the sample tank.
Or, the outer column 204 is provided with a guide chute along the axial direction thereof, the lower end of the guide chute is provided with a vertical chute position perpendicular to and communicated with the guide chute, and the inner column 205 is provided with a slide block matched with the guide chute and the vertical chute position. The guide sliding groove on the outer upright column 204 can be lifted along the sliding block on the inner upright column 205, the fixed arm 206 and the outer upright column 204 are lifted upwards together, after the vertical sliding groove at the lower end of the outer upright column 204 is lifted, the fixed arm 206 and the outer upright column 204 are rotated 90 degrees anticlockwise, the hand is released, and the fixed arm 206 and the outer upright column 204 can stay at the position; after the sample tank to be tested is placed in, the fixing arm 206 and the outer upright column 204 are rotated by 90 degrees along the forward needle by hand, and can descend along the sliding groove after reaching the vertical sliding groove position, and the electrode needle extends into the sample tank.
Two electrode needles are installed on the bottom surface of one end, far away from the outer column 204, of the fixing arm 206, one longer electrode needle is a testing probe 207, the other shorter probe is a water level probe 208 for measuring the height of a water level, a spiral winding wire 211 is adopted as an electrode needle connecting wire, the length of the wire is convenient to shrink and change when the outer column 204 is lifted and lowered, and the electrode needles are electrically connected with the host display controller 100 through a clamp connecting wire 201. The top end of the test probe 207 is provided with a protective rubber sleeve 218, so that the problem that the electrode pin coating is scratched when the test probe 207 descends and the fixed arm 206 is improperly adjusted due to the fact that the electrode pin coating is scratched when the test probe 207 descends.
The fixed arm 206 is provided with an electrode needle seat, the electrode needle and the electrode needle seat are in threaded connection and realize electric connection, and the threaded connection can facilitate replacement of the electrode needle by a user. Furthermore, a contraction rubber tube can be wrapped outside the joint of the electrode needle and the electrode needle seat, so that the phenomenon that the replacement and the disassembly of the electrode needle are influenced by the fact that solutions such as electrolyte and the like are immersed into the threaded joint is prevented.
The electrode needle seat is connected to the clamp connecting wire 201 through the connecting wire, and the electrode needle seat is further protected by pouring and pouring sealant after being fixedly connected with the electrode needle seat, so that the problem that the measurement value is inaccurate due to poor contact caused by the fact that the electric wires are corroded by solutions such as electrolyte is avoided.
Further, a buffer rubber pad 211 is arranged at the position, which is in contact with the outer upright 204, on the bottom plate 202; a sealing rubber ring is arranged at the joint of the bottom scraping needle 203 and the bottom plate 202; after the wiring detection of each corresponding part in the wiring slot position on the bottom plate 202 is correct, the protection of pouring sealant is carried out, and the problem that the measurement value is inaccurate due to poor contact caused by the fact that the electric wire and the part wiring position are corroded by solutions such as electrolyte is prevented.
Example 2:
the can body holder 200 in this embodiment is specifically applied to a sample can 300 of the three-piece can type.
The structure of the can body holder 200 in this embodiment is substantially the same as the structure suitable for two cans in embodiment 1, and the difference is that, as shown in fig. 6 to 7, the bottom scraping pins 203 in this embodiment are arranged in a delta-shape, and the bottom scraping pins 203 are electrically connected to the host display controller 100 through the clamp connection lines 201, so as to detect whether the sample can is in contact with the bottom scraping pins 203 to scrape through the outer coating film. Two auxiliary supporting bars 213 are added on the side edges of the bottom scraping needle 203, and the auxiliary supporting bars 213 are lower than the bottom scraping needle 203 in height (preferably 1mm lower), so that the sample tank can be properly supported, and the tilting of the sample tank is reduced.
The outside of scraping needle 203 at the bottom of this embodiment encircles and is equipped with two fixed columns 216 that are used for the installation side to scrape needle 217, and fixed column 216 upper end transversely runs through threaded hole, and needle 217 looks adaptation is scraped with one side to this threaded hole, is placed scraping needle 203 top back on the bottom when the sample jar to push forward the contact side and scrape needle 217, and the tip that needle 217 was scraped to the side can support the sample jar, realizes filming the sample jar body and scrapes and wear.
In addition, still set up the side around scraping needle 203 at the end in this embodiment and scraped the needle, because three-piece jar is formed by lid and can body involution, increase the side and scrape the needle and can further detect lid and can body whether have good electrically conductive contact.
Example 3:
the can body holder 200 in this embodiment is specifically applied to a spray-type sample can 300.
The structure of the can body holder 200 in this embodiment is substantially the same as the structure of the two-piece can in embodiment 1, but the difference is that the electrode needle in this embodiment is further designed to be a telescopic structure, i.e., the telescopic length can be adjusted quickly, and the electrode needle can be pulled out for replacement, so as to adapt to the heights of different sample cans in a wider range. In addition, as shown in fig. 8, the bottom scraping pins 203 in this embodiment are arranged in a delta-shape, and the bottom scraping pins 203 are electrically connected to the host display controller 100 through the clamp connection wires 201, so as to detect whether the sample tank contacts with the bottom scraping pins 203 to scrape through the outer coating film. Two auxiliary supporting bars 213 are added on the side edges of the bottom scraping needle 203, and the auxiliary supporting bars 213 are lower than the bottom scraping needle 203 in height (preferably 1mm lower), so that the sample tank can be properly supported, and the tilting of the sample tank is reduced.
In order to be suitable for spray cans with different diameters, a positioning ring 214 for supporting the spray cans is arranged outside the bottom scraping needle 203, and a positioning groove seat 215 matched with the positioning ring 214 is arranged on the bottom plate 202; the positioning ring 214 is provided in plurality with different diameters to accommodate supporting sample tanks of different diameters. When in use, the positioning ring 214 is taken out from the positioning groove seat 215 to replace the positioning ring 214 with other diameters, and the positioning ring 214 is placed in the positioning groove seat 215.
In order to further optimize technical scheme, the utility model provides a can body support 200 adopts the plastics material preparation, has anticorrosive characteristic, and life is longer.
In order to further optimize technical scheme, the utility model discloses in, the host computer display controller 100 direct detection electrode needle terminal test voltage ensures that the electrode has promoted accurate test voltage, has avoided the interference of system resistance. Specifically, the far-end circuit feeds back the closed-loop monitoring of the sampling voltage circuit, and directly monitors the feedback voltage of the test probe 207 and the bottom scraping needle 203 instead of the voltage at the output end of the circuit board, so that the voltage drop error caused by the circuit impedance is avoided. .
In order to further optimize the technical solution, the host display controller 100 of the present invention has three test modes of 4 seconds, continuous and user-defined, and provides a selectable and more accurate test method for the operator.
In order to further optimize the technical solution, the voltage polarity of the testing probe 207 of the present invention can be inverted by one key, so that the defect position can be conveniently observed and determined. When the defect part needs to be observed and determined, a voltage inversion button on the host display controller 100 is pressed, the polarity of the test probe 207 is changed, bubbles generated at the defect part are escaped under the action of electrolysis, and the defect position of the coating film in the tank can be determined by observing the bubbles.
In order to further optimize technical scheme, the utility model provides a be equipped with RS 232 serial communication interface on the host computer display controller 100, can provide compatibly for printer, computer, data acquisition.
In order to further optimize technical scheme, the utility model provides a host computer display controller 100 surface increases has the membrane button pad pasting, and the membrane button pad pasting can make host computer display controller 100 waterproof performance good, and is more durable and have better corrosion resistance.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An in-tank coating integrity tester comprises a host display controller and a tank body support electrically connected with the host display controller, and is characterized in that a clamp connecting wire used for being electrically connected with the host display controller is arranged on the tank body support, the tank body support comprises a bottom plate, bottom scraping needles are arranged on the upper surface of the bottom plate close to the middle position, and are arranged in a shape like a Chinese character 'pin' and electrically connected with the host display controller through the clamp connecting wire; the upper surface of the bottom plate is provided with a supporting upright column which is vertical to the bottom plate near the edge line, the supporting upright column consists of an outer upright column and an inner upright column, and the outer upright column can lift along the inner upright column and can realize the actions of lifting, forward rotating, reverse rotating and descending; the outer upright post is movably connected with a fixed arm, the fixed arm is perpendicular to the outer upright post, and the fixed arm is just positioned right above the bottom scraping needle when the outer upright post is in a descending state; two electrode needles are installed on the bottom surface of one end, far away from the outer stand column, of the two electrode needles, one longer electrode needle is a testing probe, the other shorter probe is a water level probe, and the electrode needles are electrically connected with the host display controller through the clamp connecting wire.
2. The apparatus of claim 1, wherein: one end of the fixed arm, which is connected with the outer stand column, is designed to be an opening structure, and the outer stand column penetrates through the opening structure and is in close fit with the opening structure; a threaded hole matched with a hand screw is formed in the opening side face of the outermost end of the opening structure, the hand screw is unscrewed, the opening is opened, and the fixed arm moves up and down along the outer stand column; and screwing the hand screw, closing the opening and fixing the fixing arm.
3. The apparatus of claim 1, wherein: the electrode needle is of a telescopic structure.
4. The apparatus of claim 1, wherein: a buffer rubber pad is arranged at the position, which is in contact with the outer upright post, on the bottom plate; and/or a sealing rubber ring is arranged at the joint of the bottom scraping needle and the bottom plate.
5. The apparatus of claim 1, wherein: the electrode needle connecting wire adopts a spiral winding wire.
6. The apparatus of claim 1, wherein: one of the inner upright post and the outer upright post is provided with a guide chute along the axial direction thereof, the top end or the bottom end of the guide chute is provided with a vertical chute position which is vertical to and communicated with the guide chute, and the other is provided with a slide block which is matched with the guide chute and the vertical chute position.
7. The apparatus of claim 1, wherein: the electrode fixing device is characterized in that an electrode needle seat is arranged on the fixing arm, the electrode needle is in threaded connection with the electrode needle seat and is electrically connected with the electrode needle seat, and the electrode needle seat is connected to the clamp connecting wire through a connecting wire.
8. The apparatus of claim 1, wherein: an external positioning support column for supporting the sample tank is arranged outside the bottom scraping needle, and the external positioning support columns are arranged in a shape like Chinese character 'pin' and are detachably connected with the bottom plate; and a plurality of groups of connecting positions of the external positioning support columns and the bottom plate are arranged so as to be suitable for supporting sample tanks with different diameters.
9. The apparatus of claim 1, wherein: a positioning circular ring for supporting the sample tank is arranged outside the bottom scraping needle, and a positioning groove seat matched with the positioning circular ring is arranged on the bottom plate; the positioning circular rings are provided with a plurality of positioning circular rings according to different diameters so as to be suitable for supporting sample tanks with different diameters.
10. The apparatus of claim 1, wherein: two auxiliary supporting bars are additionally arranged on the side edge of each bottom scraping needle, and the height of each auxiliary supporting bar is lower than that of each bottom scraping needle; and/or side scraping needles are arranged around the bottom scraping needle.
CN201920446765.6U 2019-04-03 2019-04-03 In-tank coating integrity tester Active CN209858472U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110006963A (en) * 2019-04-03 2019-07-12 广东嘉仪仪器集团有限公司 Film integrity mensuration' instrument in a kind of tank
CN115178399A (en) * 2022-09-08 2022-10-14 靖江市润新表面工程技术有限公司 Test system of insulating coating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110006963A (en) * 2019-04-03 2019-07-12 广东嘉仪仪器集团有限公司 Film integrity mensuration' instrument in a kind of tank
CN110006963B (en) * 2019-04-03 2024-05-03 广东嘉仪仪器集团有限公司 In-can coating film integrity tester
CN115178399A (en) * 2022-09-08 2022-10-14 靖江市润新表面工程技术有限公司 Test system of insulating coating

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