Device for detecting organic pollution on surface of component

Abstract

The invention relates to the technical field of component pollution detection, and discloses a component surface organic pollution detection device which comprises a workbench, and an extraction cylinder is fixedly mounted on the upper surface of the workbench. According to the device for detecting the organic pollution on the surface of the component, a spraying assembly is arranged, and a guide ball moves in a wavy guide groove, so that a rectangular block drives a spraying head to slightly swing left and right in a round hole, and then the spraying direction of the spraying head is changed; a liquid inlet is formed in the side wall of the joint between the spraying head and the rectangular block, so that the extraction liquid entering the spraying head can enter the spraying head through the liquid inlet and is downwards sprayed into the extraction barrel, and the spraying range and the spraying angle range of the extraction liquid are expanded in cooperation with the continuously rotating spraying head; therefore, possible residual organic pollutants of components with different surface shapes can be flushed and extracted, and the accuracy of detection data is improved.

Description

Technical Field

[0001] The invention relates to the technical field of component pollution detection, and in particular to a component surface organic pollution detection device. Background Art

[0002] In the field of electronic and electrical production, printed circuit boards are the basis. In the process of manufacturing printed circuit boards, highly polluting materials are usually used, and the pollutants on the surface of the printed circuit boards need to be flushed. The pollutants on the surface of printed circuit boards can usually be divided into ionic and non-ionic types. Ionic pollutants can be decomposed into positive and negative electrons in a humid environment, causing the conductivity of the surface of the printed circuit boards to increase, affecting the functionality and reliability of electronic products. Therefore, in the process of manufacturing printed circuit boards, it is necessary to detect the contamination of the surface of the printed circuit boards. In the prior art, the test is mainly carried out by an ion contamination tester. The principle is to use a certain amount of extraction liquid (composed of 75% isopropyl alcohol and 25% deionized water) to circulate and flush the circuit board, so that the surface pollutants flushed down are dissolved in the extraction liquid, so that the conductivity of the extraction liquid increases. When the conductivity reaches a steady state, the flushing is stopped, and the test value of the conductivity is equivalently converted into a specific unit to obtain the surface contamination of the printed circuit board.

[0003] According to the disclosed extraction device for detecting the surface contamination of printed circuit boards (Announcement No.: CN220961342U), in the above application, the extraction liquid is transported to each small extraction tank through a liquid separator and a liquid separation pipeline, thereby realizing the extraction of pollutants on the surface of small circuit boards or electronic components. The circulation pipeline in the small extraction tank can drive the extraction liquid in the small extraction tank to circulate, repeatedly rinse the small circuit boards or electronic components, so that the extraction liquid can also fully absorb the ionic pollutants on the surface of the small circuit boards or electronic components.

[0004] However, in actual use of the above-mentioned equipment, when the components are placed inside the extraction tank for extraction, the placement of the components is fixed, but their surface is not a flat plane. This leads to poor efficiency of flushing and extraction at some edges and corners, affecting the accuracy of the entire organic pollution detection data. In view of this, we propose a device for detecting organic pollution on the surface of components. Summary of the invention

[0005] The purpose of the present invention is to provide a device for detecting organic contamination on the surface of a component to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting organic pollution on the surface of components, comprising a workbench, an extraction cartridge is fixedly installed on the upper surface of the workbench, a three-way valve is fixedly installed on the bottom outer wall of the workbench, a water pump is fixedly installed on the upper surface of the workbench, a connecting pipe is fixedly connected to the output end of the water pump, a vertical pipe is rotatably installed on the top inner wall of the extraction cartridge, a conductivity detector is fixedly installed on the upper surface of the workbench, a conductivity detection head is fixedly connected to the side wall of the conductivity detector, an injection assembly for improving the extraction efficiency of organic pollutants on the surface of components is arranged inside the extraction cartridge, and a toggle assembly for changing the position of the component being injected to improve the extraction efficiency is arranged inside the extraction cartridge.

[0007] Preferably, the injection assembly includes a driving motor, which is fixedly mounted on the top outer wall of the extraction cylinder, a driving gear is fixedly mounted on the output end of the driving motor, a driven gear is passed through and fixedly mounted on the vertical tube, a sleeve is rotatably mounted on the top inner wall of the extraction cylinder, an inner gear ring is passed through and fixedly mounted on the vertical tube, a pinion is rotatably mounted on the inner wall of the sleeve, a spray head is fixedly mounted on the lower surface of the sleeve, a linkage disk is fixedly mounted on the bottom end surface of the vertical tube, a lever is fixedly mounted on the lower surface of the linkage disk, an elastic telescopic rod is fixedly mounted on the bottom inner wall of the spray head, a guide disk is fixedly connected to the top end of the elastic telescopic rod, a contact rod is fixedly mounted on the upper surface of the guide disk, a rectangular groove is provided inside the guide disk, guide balls are fixedly mounted on the inner surfaces of the left and right sides of the rectangular groove, a spray head is passed through and rotatably mounted on the bottom inner wall of the spray head, a rectangular block is fixedly mounted on the top end of the spray head, a guide groove is provided on the side wall of the rectangular block, and a silicone sleeve is passed through and arranged on the arc-shaped outer wall of the spray head.

[0008] Preferably, a disc-shaped groove is provided at the center of the sleeve, and the inner gear ring and the pinion gear are both arranged inside the disc-shaped groove, the pinion gear meshes with the inner gear ring to realize transmission, and the arc-shaped inner surface of the disc-shaped groove is provided with tooth patterns meshing with the pinion gear, thereby forming a planetary gear set transmission structure between the inner gear ring, the pinion gear and the sleeve.

[0009] Preferably, the lever is arranged vertically, and the bottom of the lever is arranged in an inclined shape. Specifically, the top surface of the contact rod is provided with an inclined surface adapted to the lever, so that during the relative rotation between the linkage disk and the nozzle, the lever squeezes and pushes the contact rod, causing the contact rod to drive the guide disk to move downward on the inner wall of the nozzle.

[0010] Preferably, a circular hole with a diameter larger than the outer diameter of the spray head is provided on the inner wall of the bottom of the spray head, and the outer diameter of the silicone sleeve is larger than the inner diameter of the circular hole, so that the silicone sleeve can block the circular hole inside the spray head, but due to the material of the silicone sleeve itself, it will not cause motion interference to the rotation of the spray head in the circular hole, the guide ball is arranged inside the guide groove, and the guide groove is arranged in a wave shape, and a liquid inlet is provided on the side wall of the connection between the spray head and the rectangular block, so that the extraction liquid entering the spray head can enter the spray head through the liquid inlet and spray downward into the extraction cylinder.

[0011] Preferably, the toggle assembly includes an outer sleeve, which is sleeved on the outside of the sleeve disc, an arc-shaped plate is fixedly mounted on the bottom outer wall of the outer sleeve, a convex ball is fixedly mounted on the outer surface of the arc-shaped plate close to the inner wall of the extraction cylinder, a movable groove is provided on the arc-shaped inner wall of the extraction cylinder, a fixing rod is fixedly mounted on the inner wall of the movable groove, an L-shaped slider is penetrated and slidably connected to the fixing rod, a reset spring is fixedly connected between the top outer wall of the L-shaped slider and the top inner wall of the movable groove, an arc-shaped groove is provided on the outer surface of the L-shaped slider close to the center of the extraction cylinder, and a placement net is fixedly connected to the outer wall of the L-shaped slider close to the center of the extraction cylinder.

[0012] Preferably, the top of the arc groove and the convex ball are arranged in the same plane, and the arc groove is arranged in an inclined shape, so that as the arc plate rotates, the L-shaped slider is driven to move upward in the vertical direction along the outer surface of the fixing rod through the guidance and restriction of the convex ball and the arc groove.

[0013] Preferably, a recoil assembly is provided inside the extraction cylinder, and the recoil assembly includes a piston plate, and the piston plate is fixedly connected to the lower surface of the L-shaped slider through a thin rod, a piston cavity is opened on the inner wall of the extraction cylinder, and the piston plate is arranged inside the piston cavity, a recoil tube is fixedly installed on the inner wall of the extraction cylinder, the recoil tube is connected with the inside of the piston cavity, a conduit is fixedly connected to the bottom of the recoil tube, an anti-backflow cavity is opened on the inner wall of the recoil tube, and a recoil port is opened on the top of the recoil tube.

[0014] Preferably, a one-way valve is provided at the connection between the catheter and the recoil pipe and at the recoil port, and the top end of the catheter is a one-way liquid inlet, and the recoil port is a one-way liquid outlet.

[0015] Preferably, the anti-backflow cavity is provided with a plurality of groups of wave-shaped structures near the center of the backflushing tube to prevent the extraction liquid entering the backflushing tube from directly entering the interior of the piston cavity and affecting the normal operation of the backflushing assembly.

[0016] Compared with the prior art, the present invention provides a device for detecting organic contamination on the surface of components, which has the following beneficial effects:

[0017] 1. The device for detecting organic pollution on the surface of components is provided with a spray assembly, so that the sleeve disk drives the nozzle to generate relative rotation with the vertical tube and the linkage disk. At this time, the guide disk makes a small reciprocating motion in the vertical direction in the nozzle through the squeezing and pushing of the lever and the contact rod in cooperation with the elastic telescopic rod. The movement of the guide ball in the wavy guide groove is used to drive the nozzle to swing slightly left and right in the circular hole, thereby changing the spray direction of the nozzle. Furthermore, a liquid inlet is provided on the side wall of the connection between the nozzle and the rectangular block, so that the extraction liquid entering the nozzle can enter the nozzle through the liquid inlet and spray downward into the extraction cylinder. In cooperation with the continuously rotating nozzle, the spray range and the spray angle range of the extraction liquid are expanded, thereby washing and extracting the organic pollutants that may remain in the components with different surface shapes, thereby improving the accuracy of the detection data.

[0018] 2. The device for detecting organic pollution on the surface of components is provided with a toggle assembly. When the arc plate rotates with the outer sleeve, the convex ball enters the interior of the arc groove, and is guided and restricted by the convex ball and the arc groove to drive the L-shaped slider to move upward in the vertical direction along the outer surface of the fixed rod, so that the L-shaped slider intermittently drives one end of the placement net to lift upward, so that the components placed on the placement net are lifted upward in an inclined state during the flushing process of the extraction liquid, so as to change the original flushing position of the components, improve the efficiency of the components being flushed and extracted by the extraction liquid, and thus improve the efficiency of the device in collecting data when detecting components.

[0019] 3. The device for detecting organic pollution on the surface of components is provided with a recoil assembly. When the piston plate moves downward along with the L-shaped slider, the piston plate produces a compression effect on the piston cavity, prompting the extraction liquid in the recoil tube to be discharged upward through the recoil port, so as to reversely flush the bottom surface of the component placed on the net, so that the entire component can be flushed by the extraction liquid, thereby realizing organic pollution detection of the entire component and improving the accuracy of the detection data of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the extraction cartridge of the present invention;

[0022] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the extraction cartridge of the present invention;

[0023] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of the middle A area;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the injection head of the present invention;

[0025] Figure 6 This is a schematic diagram of the explosion of the guide plate and the nozzle of the present invention;

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the recoil tube of the present invention.

[0027] In the figure: 1, workbench; 2, extraction cylinder; 3, three-way valve; 4, water pump; 5, connecting pipe; 6, vertical pipe; 7, conductivity detector; 8, conductivity detection head; 9, injection assembly; 91, driving motor; 92, driving gear; 93, driven gear; 94, sleeve; 95, inner gear ring; 96, pinion; 97, nozzle; 98, linkage plate; 99, lever; 910, elastic telescopic rod; 911, guide plate; 912, contact rod; 913, rectangular groove; 914, guide ball; 915, injection head; 916, rectangular block; 917, guide groove; 918, silicone sleeve; 10, toggle assembly; 101, outer sleeve; 102, arc plate; 103, convex ball; 104, fixing rod; 105, L-shaped slider; 106, return spring; 107, arc groove; 108, placement net; 11, recoil assembly; 111, piston plate; 112, piston chamber; 113, recoil tube; 114, catheter; 115, anti-backflow chamber; 116, recoil port. DETAILED DESCRIPTION

[0028] like Figure 1-Figure 7 As shown, the present invention provides a technical solution: a device for detecting organic pollution on the surface of components, comprising a workbench 1, an extraction cartridge 2 is fixedly installed on the upper surface of the workbench 1, a three-way valve 3 is fixedly installed on the bottom outer wall of the workbench 1, a water pump 4 is fixedly installed on the upper surface of the workbench 1, a connecting pipe 5 is fixedly connected to the output end of the water pump 4, a vertical pipe 6 is rotatably installed on the top inner wall of the extraction cartridge 2, a conductivity detector 7 is fixedly installed on the upper surface of the workbench 1, and a conductivity detector 7 is fixedly connected to the side wall of the conductivity detector 7. The detection head 8 and the extraction tube 2 are provided with an injection assembly 9 for improving the extraction efficiency of organic pollutants on the surface of components. The injection assembly 9 includes a driving motor 91, a driving gear 92, a driven gear 93, a sleeve 94, an inner gear ring 95, a pinion 96, a nozzle 97, a linkage disk 98, a lever 99, an elastic telescopic rod 910, a guide disk 911, a contact rod 912, a rectangular groove 913, a guide ball 914, a nozzle 915, a rectangular block 916, a guide groove 917 and a silicone sleeve 918.

[0029] In one embodiment of the present invention, a driving motor 91 is fixedly mounted on the top outer wall of the extraction cylinder 2, a driving gear 92 is fixedly mounted on the output end of the driving motor 91, a driven gear 93 is fixedly mounted on the vertical tube 6, a sleeve 94 is rotatably mounted on the top inner wall of the extraction cylinder 2, an inner gear ring 95 is fixedly mounted on the vertical tube 6, a small gear 96 is rotatably mounted on the inner wall of the sleeve 94, a nozzle 97 is fixedly mounted on the lower surface of the sleeve 94, a linkage disk 98 is fixedly mounted on the bottom end surface of the vertical tube 6, a lever 99 is fixedly mounted on the lower surface of the linkage disk 98, and a bottom inner wall of the nozzle 97 is fixedly mounted on the bottom inner wall of the nozzle 97. An elastic telescopic rod 910 is fixedly installed, and a guide plate 911 is fixedly connected to the top of the elastic telescopic rod 910. A contact rod 912 is fixedly installed on the upper surface of the guide plate 911. A rectangular groove 913 is opened inside the guide plate 911, and guide balls 914 are fixedly installed on the inner surfaces of the left and right sides of the rectangular groove 913. A spray head 915 is penetrated and rotatably installed on the bottom inner wall of the spray head 97. A rectangular block 916 is fixedly installed on the top of the spray head 915, and a guide groove 917 is opened on the side wall of the rectangular block 916. A silicone sleeve 918 is penetrated and provided on the curved outer wall of the spray head 915.

[0030] Furthermore, the input end of the water pump 4 is connected to the top of the three-way valve 3, and the right end opening of the three-way valve 3 is fixedly connected to the inner wall of the bottom end of the extraction cylinder 2 through a pipeline. At the same time, the top of the connecting pipe 5 is rotatably connected to the top surface of the vertical pipe 6, and the left end of the three-way valve 3 is connected to the input end of the external extraction liquid analyzer through a pipeline, so that when the water pump 4 is started, the extraction liquid in the extraction cylinder 2 can form an extraction liquid circulation loop through the above-mentioned pipeline, the connecting pipe 5 and the vertical pipe 6, and the extraction liquid in the bottom space of the extraction cylinder 2 is extracted by the water pump 4, and finally sprayed into the extraction cylinder 2 again at the top of the extraction cylinder 2 through the vertical pipe 6, so as to The surface of the components placed in the extraction cylinder 2 is rinsed to extract the pollutants on the surface of the components and make them enter the extraction liquid. At the same time, the conductivity detector 7 is started to cooperate with the conductivity detection head 8 extending into the internal space of the extraction cylinder 2 to measure the conductivity of the extraction liquid until the conductivity of the extraction liquid at the bottom of the extraction cylinder 2 tends to be stable without significant changes. Then, the three-way valve 3 is used to close the channel on one side of the water pump 4, and then the channel on the other side of the three-way valve 3 is opened to discharge the extraction liquid to the extraction liquid analysis equipment, so as to detect the content of pollutants remaining on the surface of the components and finally obtain the detection data.

[0031] In addition, the driven gear 93 meshes with the driving gear 92 to achieve transmission. By starting the driving motor 91 and cooperating with the driving gear 92, the driven gear 93 drives the vertical pipe 6 to rotate continuously. Furthermore, the vertical pipe 6 penetrates the sleeve 94 and the nozzle 97, and the vertical pipe 6 is in rotational contact with the sleeve 94 and the nozzle 97 to avoid the vertical pipe 6 from interfering with the rotation of the sleeve 94 and the nozzle 97. At the same time, a disc-shaped groove is provided at the center of the sleeve 94, and the inner gear ring 95 and the pinion 96 are both provided inside the disc-shaped groove. Specifically, the pinion 96 meshes with the inner gear ring 95 to achieve transmission, and a tooth pattern meshing with the pinion 96 is provided on the arc-shaped inner surface of the disc-shaped groove, so that a planetary gear set transmission structure is formed between the inner gear ring 95, the pinion 96 and the sleeve 94. When the vertical pipe 6 is driven When the movable inner gear ring 95 rotates, the transmission of the pinion 96 is cooperated so that the sleeve disc 94 rotates at a speed lower than the rotation speed of the vertical pipe 6. Furthermore, the upper surface of the linkage disc 98 fits the top inner surface of the nozzle 97, and the lever 99 is vertically arranged, and the bottom of the lever 99 is inclined. Specifically, the top surface of the contact rod 912 is provided with an inclined surface adapted to the lever 99. Therefore, in the process of relative rotation between the linkage disc 98 and the nozzle 97, the lever 99 squeezes and pushes the contact rod 912, so that the contact rod 912 drives the guide disc 911 to move downward on the inner wall of the nozzle 97 to compress the elastic telescopic rod 910. After the lever 99 is out of contact with the contact rod 912, the elastic force of the elastic telescopic rod 910 causes the guide disc 911 to move upward and reset.

[0032] In an embodiment of the present invention, a circular hole with a diameter larger than the outer diameter of the injection head 915 is opened on the inner wall of the bottom of the nozzle 97, and the outer diameter of the silicone sleeve 918 is larger than the inner diameter of the above circular hole, so that the silicone sleeve 918 can block the circular hole inside the nozzle 97, but due to the material of the silicone sleeve 918 itself, it will not cause motion interference to the rotation of the injection head 915 in the circular hole. Furthermore, the rectangular block 916 is arranged inside the rectangular groove 913, and the number of injection heads 915 is set, and the plurality of injection heads 915 are evenly distributed in a circular array at the bottom of the nozzle 97. Specifically, the guide ball 914 is arranged inside the guide groove 917, and the guide groove 917 is arranged in a wave shape, so that When the guide plate 911 moves downward, the guide ball 914 moves in the wavy guide groove 917, so that the rectangular block 916 drives the injection head 915 to swing slightly left and right in the circular hole, thereby changing the injection direction of the injection head 915. Furthermore, a liquid inlet is provided on the side wall of the connection between the injection head 915 and the rectangular block 916, so that the extraction liquid entering the injection head 97 can enter the injection head 915 through the liquid inlet and be sprayed downward into the extraction cylinder 2. In conjunction with the continuously rotating injection head 97, the injection range and injection angle range of the extraction liquid are expanded, thereby flushing and extracting organic pollutants that may remain in components with different surface shapes, thereby improving the accuracy of the detection data.

[0033] Please refer to the instruction manual for details. Figure 3-Figure 4 as well as Figure 7 In the embodiment of the present invention, the interior of the extraction cylinder 2 is provided with a toggle assembly 10 for changing the injection position of the components to improve the extraction efficiency. The toggle assembly 10 includes an outer sleeve 101, which is sleeved on the outer side of the sleeve disc 94. An arc plate 102 is fixedly installed on the bottom outer wall of the outer sleeve 101, and a convex ball 103 is fixedly installed on the outer surface of the arc plate 102 close to the inner wall of the extraction cylinder 2. A movable groove is opened on the arc inner wall of the extraction cylinder 2, and a fixing rod 104 is fixedly installed on the inner wall of the movable groove. The fixing rod 104 penetrates and is slidably connected with an L-shaped slider 105. A reset spring 106 is fixedly connected between the top outer wall of the L-shaped slider 105 and the top inner wall of the movable groove. An arc groove 107 is opened on the outer surface of the L-shaped slider 105 close to the center of the extraction cylinder 2, and a placement net 108 is fixedly connected to the outer wall of the L-shaped slider 105 close to the center of the extraction cylinder 2.

[0034] Specifically, the sleeve 94 is arranged at the top center of the outer sleeve 101, so that the sleeve 94 drives the outer sleeve 101 to rotate in the same direction and at the same speed when rotating. In addition, the arc-shaped outer wall of the outer sleeve 101 fits with the arc-shaped inner surface of the extraction cylinder 2 to ensure the stability of the outer sleeve 101 during rotation. Further, there are two groups of arc plates 102, and the two groups of arc plates 102 are mirror-imaged on the bottom surfaces of the left and right sides of the outer sleeve 101. Further, the top of the arc groove 107 and the convex ball 103 are arranged in the same plane, so that when the arc plate 102 rotates with the outer sleeve 101, the convex ball 103 will enter the interior of the arc groove 107. Specifically, the arc groove 107 is arranged in an inclined shape, so that As the arc plate 102 rotates, the L-shaped slider 105 is driven to move upward in the vertical direction along the outer surface of the fixed rod 104 through the guidance and restriction of the convex ball 103 and the arc groove 107. Furthermore, the reset spring 106 is sleeved on the outer side of the fixed rod 104 to ensure the relative stability of the movement of the L-shaped slider 105. As the arc plate 102 drives, the L-shaped slider 105 will intermittently drive one end of the placement net 108 to lift upward, so that the components placed on the placement net 108 are lifted upward in an inclined manner during the flushing process of the extraction liquid, so as to change the original flushing position of the components and improve the efficiency of the components being flushed and extracted by the extraction liquid, thereby improving the efficiency of the device in collecting data when detecting components.

[0035] Please refer to the instruction manual for details. Figure 4 as well as Figure 7 In the embodiment of the present invention, a recoil assembly 11 is provided inside the extraction cylinder 2, and the recoil assembly 11 includes a piston plate 111, and the piston plate 111 is fixedly connected to the lower surface of the L-shaped slider 105 through a thin rod. A piston cavity 112 is provided on the inner wall of the extraction cylinder 2, and the piston plate 111 is provided inside the piston cavity 112. A recoil pipe 113 is fixedly installed on the inner wall of the extraction cylinder 2, and the recoil pipe 113 is connected to the inside of the piston cavity 112. A conduit 114 is fixedly connected to the bottom of the recoil pipe 113, and an anti-backflow cavity 115 is provided on the inner wall of the recoil pipe 113. A recoil port 116 is provided on the top of the recoil pipe 113.

[0036] Specifically, the recoil tube 113 is arranged horizontally, and the recoil tube 113 is arranged below the placement net 108, and there are two groups of piston chambers 112, and the two groups of piston chambers 112 are mirror-imaged on the left and right sides of the vertical center axis of the extraction cylinder 2. Specifically, the conduit 114 is connected with the internal cavity of the recoil tube 113, and the bottom end of the conduit 114 is arranged at the bottom of the extraction cylinder 2. When the L-shaped slider 105 is affected by the arc plate 102 and the return spring 106 and reciprocates in the vertical direction, the piston plate 111 affects the pressure in the piston chamber 112, so that the piston plate 111 has a liquid extraction effect during the upward movement. The extracted liquid enters the interior of the recoil tube 113 through the conduit 114. Specifically, the connection between the conduit 114 and the recoil tube 113 and the recoil spring 106 are connected. A one-way valve is provided at each flushing port 116, and the top of the conduit 114 is a one-way liquid inlet, while the backflushing port 116 is a one-way liquid outlet. Furthermore, a plurality of groups of wavy structures are provided at the anti-backflow chamber 115 near the center of the backflushing tube 113 to prevent the extracting liquid entering the backflushing tube 113 from directly entering the interior of the piston chamber 112 and affecting the normal operation of the backflushing assembly 11. During the downward movement of the piston plate 111, the piston plate 111 produces a compression effect on the piston chamber 112, prompting the extracting liquid in the backflushing tube 113 to be discharged upward through the backflushing port 116, so as to backflush the bottom surface of the components placed on the placement net 108, so that the components as a whole can obtain the flushing effect of the extracting liquid, thereby realizing the organic pollution detection of the components as a whole and improving the accuracy of the detection data of the device.

[0037] In the present invention, when in use, the components are placed on the placement net 108, and the extraction liquid is injected into the extraction cylinder 2 at this time, and the left end outlet of the three-way valve 3 is closed. At this time, the conductivity detector 7 is turned on and the water pump 4 is started. The water pump 4 draws out the extraction liquid in the bottom space of the extraction cylinder 2, and finally sprays it back into the extraction cylinder 2 through the vertical pipe 6 at the top of the extraction cylinder 2, so as to rinse the surface of the components placed in the extraction cylinder 2, and then realize the extraction of pollutants on the surface of the components and make them enter the extraction liquid. At the same time, the conductivity detector 7 is started, and the conductivity detection head 8 extending into the internal space of the extraction cylinder 2 is used to measure the conductivity of the extraction liquid. When it is shown that the conductivity of the extraction liquid at the bottom of the extraction cylinder 2 tends to be stable and has no significant change, the three-way valve 3 is used to close the channel on one side of the water pump 4, and then the channel on the other side of the three-way valve 3 is opened to discharge the extraction liquid to the extraction liquid analysis equipment, so as to realize the detection of the content of pollutants remaining on the surface of the components, and finally obtain the detection data.

[0038] In this process, the spray assembly 9 is provided, and the inner gear ring 95 and the pinion 96 are matched, so that the sleeve disc 94 drives the spray head 97 to rotate relatively slowly relative to the vertical pipe 6, that is, the linkage disc 98 fixedly connected to the bottom end of the vertical pipe 6 and the spray head 97 rotate relatively. At this time, the contact rod 912 is squeezed and pushed by the lever 99, so that the contact rod 912 drives the guide disc 911 to move downward on the inner wall of the spray head 97 to compress the elastic telescopic rod 910. After the lever 99 is separated from the contact rod 912, the elastic force of the elastic telescopic rod 910 causes the guide disc 911 to move upward and reset. In this process, the guide ball 912 is used to guide the guide disc 911 to move downward on the inner wall of the spray head 97. 14 moves in the wavy guide groove 917 to cause the rectangular block 916 to drive the injection head 915 to swing slightly left and right in the circular hole, thereby changing the injection direction of the injection head 915. Furthermore, a liquid inlet is provided on the side wall of the connection between the injection head 915 and the rectangular block 916, so that the extraction liquid entering the injection head 97 can enter the injection head 915 through the liquid inlet and spray downward into the extraction cylinder 2, and cooperate with the continuously rotating injection head 97 to expand the injection range and injection angle range of the extraction liquid, thereby washing and extracting the organic pollutants that may remain on the components with different surface shapes, and improving the accuracy of the detection data.

[0039] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A device for detecting organic contamination on the surface of a component, comprising a workbench (1), an extraction cartridge (2) fixedly mounted on the upper surface of the workbench (1), a three-way valve (3) fixedly mounted on the bottom outer wall of the workbench (1), a water pump (4) fixedly mounted on the upper surface of the workbench (1), a connecting pipe (5) fixedly connected to the output end of the water pump (4), a vertical pipe (6) rotatably mounted on the top inner wall of the extraction cartridge (2), a conductivity detector (7) fixedly mounted on the upper surface of the workbench (1), a conductivity detection head (8) fixedly connected to the side wall of the conductivity detector (7), characterized in that: The extraction cylinder (2) is provided with a spray assembly (9) for improving the extraction efficiency of organic pollutants on the surface of components, and the extraction cylinder (2) is provided with a toggle assembly (10) for changing the sprayed position of the components to improve the extraction efficiency.

2. The device for detecting organic contamination on the surface of a component according to claim 1, characterized in that: The injection assembly (9) comprises a driving motor (91), the driving motor (91) being fixedly mounted on the top outer wall of the extraction cylinder (2), a driving gear (92) being fixedly mounted on the output end of the driving motor (91), a driven gear (93) being passed through and fixedly mounted on the vertical tube (6), a sleeve disc (94) being rotatably mounted on the top inner wall of the extraction cylinder (2), an inner gear ring (95) being passed through and fixedly mounted on the vertical tube (6), a pinion gear (96) being rotatably mounted on the inner wall of the sleeve disc (94), a nozzle (97) being fixedly mounted on the lower surface of the sleeve disc (94), a linkage disc (98) being fixedly mounted on the bottom end surface of the vertical tube (6), a lever (99) being fixedly mounted on the lower surface of the linkage disc (98), and the nozzle (97) being fixedly mounted on the lower surface of the linkage disc (98). 7) is fixedly mounted on the bottom inner wall of the nozzle (97), the top of the elastic telescopic rod (910) is fixedly connected to a guide plate (911), the upper surface of the guide plate (911) is fixedly mounted with a contact rod (912), the inside of the guide plate (911) is provided with a rectangular groove (913), the left and right inner surfaces of the rectangular groove (913) are fixedly mounted with guide balls (914), the bottom inner wall of the nozzle (97) is penetrated and rotatably mounted with a spray head (915), the top of the nozzle (915) is fixedly mounted with a rectangular block (916), the side wall of the rectangular block (916) is provided with a guide groove (917), and the arc-shaped outer wall of the nozzle (915) is penetrated and provided with a silicone sleeve (918).

3. The device for detecting organic contamination on the surface of a component according to claim 2, characterized in that: A disc-shaped groove is arranged at the center of the sleeve (94), and the inner gear ring (95) and the pinion gear (96) are arranged inside the disc-shaped groove. The pinion gear (96) meshes with the inner gear ring (95) to realize transmission, and a tooth pattern meshing with the pinion gear (96) is provided on the arc-shaped inner surface of the disc-shaped groove.

4. The device for detecting organic contamination on the surface of a component according to claim 3, characterized in that: The lever (99) is arranged in a vertical shape, and the bottom of the lever (99) is arranged in an inclined shape. The top surface of the contact rod (912) is provided with an inclined surface matched with the lever (99).

5. The device for detecting organic contamination on the surface of a component according to claim 4, characterized in that: A circular hole having a diameter greater than the outer diameter of the injection head (915) is provided on the inner wall at the bottom of the injection head (97), and the outer diameter of the silicone sleeve (918) is greater than the inner diameter of the circular hole. The guide ball (914) is arranged inside the guide groove (917), and the guide groove (917) is arranged in a wave shape. A liquid inlet is provided on the side wall of the connection between the injection head (915) and the rectangular block (916).

6. The device for detecting organic contamination on the surface of a component according to claim 5, characterized in that: The toggle assembly (10) comprises an outer sleeve (101), the outer sleeve (101) being sleeved on the outer side of the sleeve disc (94), an arc-shaped plate (102) being fixedly mounted on the bottom outer wall of the outer sleeve (101), a convex ball (103) being fixedly mounted on the outer surface of the arc-shaped plate (102) on the side close to the inner wall of the extraction cylinder (2), a movable groove being provided on the arc-shaped inner wall of the extraction cylinder (2), a fixing rod (104) being fixedly mounted on the inner wall of the movable groove, an L-shaped slider (105) being passed through and slidably connected to the fixing rod (104), a return spring (106) being fixedly connected between the top outer wall of the L-shaped slider (105) and the top inner wall of the movable groove, an arc-shaped groove (107) being provided on the outer surface of the L-shaped slider (105) on the side close to the center of the extraction cylinder (2), and a placement net (108) being fixedly connected to the outer wall of the L-shaped slider (105) on the side close to the center of the extraction cylinder (2).

7. The device for detecting organic contamination on the surface of a component according to claim 6, characterized in that: The top end of the arc-shaped groove (107) and the convex ball (103) are arranged in the same plane, and the arc-shaped groove (107) is arranged in an inclined shape.

8. The device for detecting organic contamination on the surface of a component according to claim 7, characterized in that: A recoil assembly (11) is arranged inside the extraction cylinder (2), and the recoil assembly (11) comprises a piston plate (111), and the piston plate (111) is fixedly connected to the lower surface of the L-shaped sliding block (105) through a thin rod. A piston cavity (112) is provided on the inner wall of the extraction cylinder (2), and the piston plate (111) is arranged inside the piston cavity (112). A recoil pipe (113) is fixedly installed on the inner wall of the extraction cylinder (2), and the recoil pipe (113) is connected to the inside of the piston cavity (112). A conduit (114) is fixedly connected to the bottom of the recoil pipe (113), an anti-backflow cavity (115) is provided on the inner wall of the recoil pipe (113), and a recoil port (116) is provided at the top of the recoil pipe (113).

9. The device for detecting organic contamination on the surface of a component according to claim 8, characterized in that: A one-way valve is provided at the connection between the conduit (114) and the backwash pipe (113) and at the backwash port (116), and the top end of the conduit (114) is a one-way liquid inlet, while the backwash port (116) is a one-way liquid outlet.

10. The device for detecting organic contamination on the surface of a component according to claim 9, characterized in that: The anti-backflow cavity (115) is provided with a plurality of groups of wave-shaped structures near the center of the backwash tube (113).

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