Disclosure of Invention
In order to improve the detection efficiency of water quality, the application provides a water quality detection system.
The water quality detection system provided by the application adopts the following technical scheme:
The utility model provides a water quality testing system, includes the workstation, installs conveying mechanism, liquid feeding mechanism, mixing lid mechanism, liquid transferring mechanism, detection mechanism, centrifugal mechanism and digestion mechanism on the workstation respectively, liquid feeding mechanism the mixing lid mechanism liquid transferring mechanism centrifugal mechanism with digestion mechanism is followed conveying mechanism's direction of delivery distributes, conveying mechanism follows in proper order liquid feeding mechanism mixing lid transferring mechanism liquid transferring mechanism centrifugal mechanism with one side of digestion mechanism passes, conveying mechanism will be equipped with the color comparison tube of waiting to detect the liquid feeding mechanism mixing lid transferring mechanism liquid transferring mechanism centrifugal mechanism with transport between digestion mechanism, detection mechanism locates one side of liquid transferring mechanism, liquid transferring mechanism locates one side of mixing lid transferring mechanism.
By adopting the technical scheme, the conveying mechanism is used for conveying the colorimetric tube filled with the water sample among the mixing cover rotating mechanism, the liquid rotating mechanism, the centrifugal mechanism and the digestion mechanism, the liquid adding mechanism is used for adding the corresponding reaction reagent and the color developing reagent, the mixing cover rotating mechanism is used for uniformly mixing the liquid in the colorimetric tube and mounting and removing the tube cover for the corresponding colorimetric tube, the liquid rotating mechanism is used for quantitatively extracting the liquid in the colorimetric tube into a new colorimetric tube and extracting the liquid in the colorimetric tube into the detecting mechanism, the detecting mechanism is used for detecting the ammonia nitrogen, the total phosphorus and the hexavalent chromium content of the liquid extracted by the liquid rotating mechanism, the centrifugal mechanism is used for carrying out centrifugal operation on the liquid in the contrast tube, and the digestion mechanism is used for carrying out digestion operation on the liquid in the contrast tube; through increasing conveying mechanism, liquid feeding mechanism, mixing lid mechanism, change liquid mechanism to reform transform centrifugal mechanism and clear up the mechanism and make centrifugal mechanism and clear up the mechanism and can automize the operation, conveying mechanism will liquid feeding mechanism, mixing lid mechanism, change liquid mechanism, centrifugal mechanism and clear up the mechanism and link up each other, conveying mechanism once only carries a plurality of color comparison tubes that are equipped with the water sample that wait to detect, every color comparison tube is used for detecting an index, thereby make water quality testing system can detect one or more indexes in ammonia nitrogen, total phosphorus and hexavalent chromium as required, detection process is automatic going on, need not artifical frequent operation, detection efficiency is high.
Preferably, the liquid transferring mechanism comprises a liquid transferring movable module, a first peristaltic pump and a second peristaltic pump, the first peristaltic pump is mounted on one side of the liquid transferring movable module facing the liquid transferring mechanism, a liquid pumping port of the first peristaltic pump can be connected with a colorimetric tube at the position of the liquid transferring mechanism, a liquid outlet of the first peristaltic pump can be connected with a colorimetric tube at the position of the liquid transferring mechanism, the second peristaltic pump is mounted on one side of the liquid transferring movable module facing the detecting mechanism, a liquid pumping port of the second peristaltic pump can be connected with the colorimetric tube at the position of the liquid transferring mechanism, and a liquid outlet of the second peristaltic pump can be connected with the detecting mechanism.
Through adopting above-mentioned technical scheme, change liquid activity module can drive first peristaltic pump and second peristaltic pump and remove to the optional position in the settlement scope to satisfy the requirement of changeing liquid of the color comparison tube of different positions, and can quantitatively change liquid through the peristaltic pump, the precision is high, can extract centrifugal and digested liquid again as required, and extract quantitative liquid to detection mechanism, the detection precision is high.
Preferably, the digestion mechanism comprises a longitudinal guide rail, a transverse guide rail, digestion clamping jaws, a digestion instrument and a digestion cover cylinder, wherein the transverse guide rail is slidably mounted on the longitudinal guide rail, a longitudinal driving piece is mounted on the transverse guide rail, the longitudinal driving piece is connected with the longitudinal guide rail and drives the transverse guide rail to move along the longitudinal guide rail, the digestion clamping jaws are mounted on the transverse guide rail through a lifting module, the lifting module is slidably connected with the transverse guide rail, the transverse driving piece is in driving connection with the transverse guide rail and drives the lifting module to move along the transverse guide rail, the digestion instrument is mounted on one side of the digestion clamping jaws, the transverse driving piece and the longitudinal driving piece drive the digestion clamping jaws to move between the digestion instrument and the conveying mechanism, the digestion cover cylinder is connected with a cover of the digestion instrument, the digestion cover cylinder is in sliding connection with the longitudinal guide rail through a mounting plate, and a cover moving driving piece is mounted on the mounting plate, and the cover moving driving piece is connected with the longitudinal guide rail and drives the longitudinal guide rail to move along the mounting plate.
Through adopting above-mentioned technical scheme, longitudinal rail, transverse rail and lifting module drive and clear up the clamping jaw and remove to the optional position in the settlement scope, thereby can press from both sides the color comparison tube that needs to press from both sides to get wantonly, and clear up the lid that cover cylinder can drive and clear up the appearance and rise and descend, make the lid of clearing up the appearance open and close, move the lid driving piece and make the lid of clearing up the appearance and can follow longitudinal rail and remove, thereby make and clear up the clamping jaw and can place the color comparison tube and clear up the appearance in, realize automatic snatching color comparison tube business turn over and clear up the appearance, degree of automation is high, clear up efficiently, the security is good.
Preferably, the centrifugal mechanism comprises a centrifugal movable module, a centrifugal clamping jaw and a centrifugal machine, wherein the centrifugal clamping jaw is arranged at the tail end of the centrifugal movable module, and the centrifugal machine is arranged on one side of the centrifugal clamping jaw and on the moving track of the centrifugal clamping jaw.
Through adopting above-mentioned technical scheme, centrifugal clamping jaw is used for pressing from both sides and gets the color comparison tube, and centrifugal activity module can drive centrifugal clamping jaw and remove to the optional position in the settlement scope, in the color comparison tube that will press from both sides got removes centrifuge, centrifuge is centrifuged the color comparison tube.
Preferably, the mixing cover rotating mechanism comprises a mixing cover rotating assembly, a enclasping assembly and a pipe cover conveying assembly, wherein the mixing cover rotating assembly is arranged on one side of the conveying mechanism, the enclasping assembly is arranged on one side of the mixing cover rotating assembly, the pipe cover conveying assembly is arranged on one side of the mixing cover rotating assembly, and the mixing cover rotating assembly is used for transferring and mixing a colorimetric tube between the conveying mechanism and the enclasping assembly and transferring a pipe cover between the enclasping assembly and the pipe cover conveying assembly.
Through adopting above-mentioned technical scheme, the colorimetric tube clamp on the conveying mechanism is got and is placed to the blending lid subassembly and hug tightly the subassembly on, hugs tightly the subassembly and presss from both sides the colorimetric tube tightly, later the blending lid subassembly mixes the liquid in the colorimetric tube, to the colorimetric tube that is used for detecting ammonia nitrogen, the blending lid subassembly can snatch the tube lid from tube lid conveying subassembly department and install on the colorimetric tube to can take off the tube lid on the colorimetric tube and place back in the tube lid conveying subassembly and deposit.
Preferably, the mixing cover rotating assembly comprises a mechanical arm, a mixing clamping jaw and an air tap, wherein the mixing clamping jaw and the air tap are both arranged on the mechanical arm, the air tap is arranged on one side of the mixing clamping jaw, and the mechanical arm drives the mixing clamping jaw and the air tap to move between the conveying mechanism, the enclasping assembly and the pipe cover conveying assembly.
Through adopting above-mentioned technical scheme, the arm drives the mixing clamping jaw and removes snatchs the color comparison tube, and the air cock is used for blowing the liquid in the color comparison tube to mix, lays the space little, conveniently lays, and the arm can rock the color comparison tube moreover as required for the liquid in the color comparison tube is more evenly mixed easily.
Preferably, the pipe cover conveying assembly comprises a pipe cover storage rack, a pipe cover pushing plate and a pushing plate cylinder, wherein a storage hole vertically penetrating through the pipe cover storage rack is formed in the pipe cover storage rack, the pipe cover pushing plate is arranged below the pipe cover storage rack, and the pushing plate cylinder is connected with the pipe cover pushing plate; the pipe cover pushing plate is provided with a first upper surface and a second upper surface which are distributed along the axial direction of the pushing plate cylinder, the first upper surface is lower than the second upper surface, the first upper surface is provided with a pipe cover groove aligned with the storage hole, the distance between the bottom of the pipe cover groove and the second upper surface is smaller than the height of the pipe cover, the distance between the second upper surface and the storage hole is smaller than the height of the pipe cover, and the pushing plate cylinder is used for pushing the pipe cover pushing plate to move so that the pipe cover groove enters and leaves the lower part of the pipe cover storage rack.
By adopting the technical scheme, in the related art, the installation and the removal of the pipe cover are carried out at different stations, two sets of equipment are required to be installed for installing and removing the pipe cover respectively, and after the pipe cover is removed, a transfer equipment is required to be additionally installed for conveying the pipe cover back to the installation station of the pipe cover, so that the structure is complex and the cost is high; the pipe cover is installed and removed at the position of the uniform mixing cover rotating mechanism, and a set of equipment is adopted to complete the installation and the removal, so that the cost is low; in order to realize the installation and the removal of the pipe cover by one set of equipment, the pipe cover needs to be stored, and the stored pipe covers need to be ensured to be taken out one by one conveniently; the pipe covers are placed in the storage holes from the upper ends of the storage holes, the lowest pipe cover falls into the pipe cover groove from the lower ends of the storage holes, when the pipe covers are required to be installed, the pipe cover pushing plate is pushed by the pushing plate cylinder to push the pipe covers in the pipe cover groove out of the pipe cover storage rack, the pipe covers in the storage holes can be blocked by the second upper surface and cannot fall continuously, after the pipe covers in the pipe cover groove are taken away by driving the mixing clamping jaw by the standby mechanical arm, the pipe cover pushing plate is pulled by the pushing plate cylinder to move back, and when the second surface is separated from the storage holes, the lowest pipe cover falls into the pipe cover groove from the lower ends of the storage holes; when the tube cover needs to be taken down, the mechanical arm drives the mixing clamping jaw to take down the tube cover from the colorimetric tube, then the tube cover is moved to the upper part of the storage hole, the tube cover is placed into the storage hole from the upper end of the storage hole, and the tube cover falls down into the storage hole under the gravity of the tube cover.
Preferably, the mixing cover rotating assembly further comprises a lifting cylinder, the lifting cylinder is mounted on the mechanical arm, the air pipe end of the air tap is hinged to the piston rod of the lifting cylinder, the air outlet end of the air tap is hinged to a rotary cylinder, the rotary cylinder is connected with the piston rod of the lifting cylinder through a connecting plate, and the rotary cylinder is used for driving the air tap to rotate and enabling the air outlet of the air tap to face the mixing clamping jaw.
Through adopting above-mentioned technical scheme, because the centrifugation process probably has liquid to splash to the tube cover, after the tube cover is taken down, can make the gas outlet of air cock towards the inside of tube cover through lift cylinder and revolving cylinder, the air cock can weather the remaining liquid on the tube cover this moment, reduces the accuracy influence of remaining liquid in the tube cover to the ammonia nitrogen detection of water in the follow-up color comparison tube.
Preferably, the conveying mechanism comprises an upper conveying assembly, a lower conveying assembly, a middle conveying assembly and a receiving and sending assembly, the middle conveying assembly is vertically arranged, the upper end of the middle conveying assembly is connected with one end of the upper conveying assembly, the lower end of the middle conveying assembly is connected with one end of the lower conveying assembly, the upper conveying assembly is far away from one end of the middle conveying assembly and is a feeding station, the lower conveying assembly is far away from one end of the middle conveying assembly and is a recycling station, the liquid adding mechanism is a mixing and rotating cover mechanism, the liquid rotating mechanism is sequentially arranged on one side of the upper conveying assembly, the centrifugal mechanism is arranged on one side of the middle conveying assembly, the digestion mechanism is arranged on one side of the lower conveying mechanism, the receiving and sending assembly is respectively arranged between the mixing and rotating cover mechanism and the upper conveying assembly, between the liquid rotating mechanism and the upper conveying assembly, between the centrifugal mechanism and the middle conveying assembly and between the digestion mechanism and the lower conveying assembly.
By adopting the technical scheme, the arrangement of the upper conveying assembly, the lower conveying assembly and the middle conveying assembly enables the whole detection system to be more compact, is convenient to arrange, and reduces space temporary use; and the receiving and sending assembly can be used for receiving the storage piece from the upper conveying assembly, the lower conveying assembly and the middle conveying assembly, so that the storage piece can be conveniently and uniformly clamped by the cover rotating mechanism, the liquid rotating mechanism, the centrifugal mechanism and the digestion mechanism, and can be also conveyed to the upper conveying assembly, the lower conveying assembly and the middle conveying assembly, and the storage piece can be conveniently conveyed.
Preferably, the receiving and sending assembly comprises a mixing receiving and sending machine, a liquid transferring and sending machine, a centrifugal receiving and sending machine and a digestion and sending machine, wherein the mixing receiving and sending machine is arranged between the mixing rotating cover mechanism and the upper conveying assembly, the mixing receiving and sending machine is used for receiving and sending the colorimetric tubes between the upper conveying assembly and the mixing rotating cover mechanism, the liquid transferring and sending machine is arranged between the liquid transferring mechanism and the upper conveying assembly, the liquid transferring and sending machine is used for receiving and sending the colorimetric tubes between the upper conveying assembly and the liquid transferring mechanism, the centrifugal receiving and sending machine is arranged between the centrifugal mechanism and the middle conveying assembly, the centrifugal receiving and sending machine is used for receiving and sending the colorimetric tubes between the middle conveying assembly and the centrifugal mechanism, the digestion and sending machine is arranged between the digestion mechanism and the lower conveying assembly, and the digestion and sending machine is used for receiving and sending the colorimetric tubes between the lower conveying assembly and the digestion mechanism.
Through adopting above-mentioned technical scheme, through mixing meet send machine, transfer liquid meet send machine, centrifugal meet send machine and clear up and send machine realization conveying mechanism, mixing change lid mechanism, transfer liquid mechanism, centrifugal mechanism and clear up the transportation of the color comparison tube between the mechanism.
In summary, the present application includes at least one of the following beneficial technical effects:
1. According to the application, the conveying mechanism, the liquid adding mechanism, the mixing cover rotating mechanism and the liquid rotating mechanism are added, and the centrifugal mechanism and the digestion mechanism are modified so that the centrifugal mechanism and the digestion mechanism can automatically operate, the conveying mechanism correlates the liquid adding mechanism, the mixing cover rotating mechanism, the liquid rotating mechanism, the centrifugal mechanism and the digestion mechanism, the conveying mechanism conveys a plurality of colorimetric tubes filled with water samples to be detected at one time, each colorimetric tube is used for detecting one index, so that a water quality detection system can detect one or more indexes of ammonia nitrogen, total phosphorus and hexavalent chromium according to requirements, the detection process is automatically carried out, manual frequent operation is not needed, and the detection efficiency is high;
2. in order to realize the installation and the removal of the pipe cover by one set of equipment, the pipe cover conveying assembly is arranged, the pipe covers are stored, the stored pipe covers can be taken out one by one conveniently, the installation and the removal of the pipe covers are realized at the position of the mixing cover rotating mechanism, the installation and the removal of the pipe covers are completed by one set of equipment, the equipment structure is simple, and the cost is low.
Detailed Description
The application is described in further detail below with reference to fig. 1-12.
The embodiment of the application discloses a water quality detection system.
Referring to fig. 1, a water quality detection system includes a workbench 8, on which a conveying mechanism 1, a liquid adding mechanism 2, a mixing cover rotating mechanism 3, a liquid rotating mechanism 4, a detecting mechanism 5, a centrifugal mechanism 6 and a digestion mechanism 7 are respectively installed, the workbench 8 is divided into two layers, the workbench 8 on the upper layer is provided with two tables with different heights, the liquid adding mechanism 2, the mixing cover rotating mechanism 3, the liquid rotating mechanism 4 and the detecting mechanism 5 are sequentially arranged on the upper layer of the workbench 8 and on the table with higher height, and the centrifugal mechanism 6 and the digestion mechanism 7 are arranged on the lower layer of the workbench 8. The conveying mechanism 1 is arranged on a table top with lower height of the upper layer of the workbench 8, the lower layer of the workbench 8 and one side of the two layers of the workbench 8, and realizes the back and forth conveying between the upper layer and the lower layer of the workbench 8, and the liquid adding mechanism 2, the mixing rotating cover mechanism 3, the liquid transferring mechanism 4, the centrifugal mechanism 6 and the digestion mechanism 7 are all arranged on one side of the conveying mechanism 1 and are sequentially distributed along the conveying direction of the conveying mechanism 1. The two ends of the conveying mechanism 1 are respectively a feeding station and a recycling station, a colorimetric tube enters the conveying mechanism 1 from the feeding station, and leaves the conveying mechanism 1 from the recycling station. The liquid feeding mechanism 2 is arranged on one side close to the feeding station, the digestion mechanism 7 is arranged on one side of the discharging station, the conveying mechanism 1 conveys the colorimetric tubes back and forth among the liquid feeding mechanism 2, the mixing cover rotating mechanism 3, the liquid rotating mechanism 4, the centrifugal mechanism 6 and the digestion mechanism 7, and after detection is completed, the colorimetric tubes are conveyed to the recycling station for recycling. The mixing cover rotating mechanism 3 and the detecting mechanism 5 are respectively arranged at two sides of the liquid rotating mechanism 4, the liquid rotating mechanism 4 transfers the liquid in the colorimetric tube at the position of the mixing cover rotating mechanism 3 to the colorimetric tube at the position of the liquid rotating mechanism 4, and transfers the liquid in the colorimetric tube at the position of the liquid rotating mechanism 4 to the detecting mechanism 5, the detecting mechanism 5 is a spectrophotometer, and the detecting mechanism 5 detects the contents of ammonia nitrogen, total phosphorus and hexavalent chromium on the transferred liquid. The liquid adding mechanism 2 is used for adding a reagent into a colorimetric tube filled with liquid to be detected, the mixing rotating cover mechanism 3 is used for mixing the liquid in the colorimetric tube after the reagent is added, the tube cover is used for mounting the tube cover and removing the tube cover on the colorimetric tube, the centrifugal mechanism 6 is used for centrifuging the colorimetric tube, and the digestion mechanism 7 is used for digesting the colorimetric tube. The color comparison tube is transported in groups, the number of each group of color comparison tubes is selected according to the requirement, the number of the color comparison tubes is not less than the type of indexes detected simultaneously, each group of color comparison tubes is intensively stored by adopting a storage piece, the storage piece of the embodiment is a tray, and the transport device transports the storage piece to transport the color comparison tubes.
Referring to fig. 2, the conveying mechanism 1 includes an upper conveying assembly 11, a lower conveying assembly 13, a middle conveying assembly 12 and a receiving assembly 14, the upper conveying assembly 11 is mounted on the upper layer of the workbench 8, the lower conveying assembly 13 is mounted on the lower layer of the workbench 8, the middle conveying assembly 12 is vertically arranged, the upper end of the middle conveying assembly 12 is arranged on one side of the upper conveying assembly 11, the lower end of the middle conveying assembly 12 is arranged on one side of the lower conveying assembly 13, and the receiving assembly 14 is respectively arranged on one side of the upper conveying assembly 11, the lower conveying assembly 13 and the middle conveying assembly 12.
Referring to fig. 2, the upper conveying assembly 11 includes a first linear module 111, an upper bracket 113 and an upper bracket cylinder 112, the first linear module 111 is a screw rod type, the first linear module 111 is mounted on a step of a lower height of an upper layer of the table 8, a cylinder body of the upper bracket cylinder 112 is fixed on a slider of the first linear module 111, and the upper bracket 113 is fixedly mounted on a piston rod of the upper bracket cylinder 112. The upper bracket 113 comprises two upper struts which are parallel and are arranged at intervals, the two upper struts are fixedly connected with each other through a connecting rod, the upper part of each upper strut is respectively provided with two supporting legs, and the two supporting legs are arranged at intervals. When the upper conveying assembly 11 conveys the cuvette, the upper supporting cylinder 112 drives the upper bracket 113 to descend to a set position lower than the storage piece, then the first linear module 111 drives the upper bracket 113 to move to the lower side of the storage piece, then the upper supporting cylinder 112 drives the upper bracket 113 to lift upwards, the storage piece is supported by four supporting legs of the upper bracket 113, and the upper bracket 113 can be conveyed after the original supporting structure of the storage piece is retracted.
Referring to fig. 2 and 3, the middle conveying assembly 12 includes a second linear module 121 and a middle bracket 122, the second linear module 121 is a synchronous belt type, the second linear module 121 is vertically installed on the workbench 8, the upper end of the second linear module 121 is disposed at one side of the first linear module 111, and the middle bracket 122 is installed on a slider of the second linear module 121 and is lifted along with the slider of the second linear module 121. The middle bracket 122 comprises a support plate 1221, two horizontal sliding rails 1222, a rack 1224, a sliding motor 1225 and a fork plate 1223, wherein the support plate 1221 is horizontally arranged, one end of the support plate 1221 is fixedly connected with the sliding block of the second linear module 121, the other end of the support plate 1221 is suspended, the two horizontal sliding rails 1222 are arranged in parallel and are respectively fixed at two ends of the support plate 1221, and the rack 1224 is arranged between the two horizontal sliding rails 1222 and is parallel to the horizontal sliding rails 1222. The fork plate 1223 is horizontally arranged, the fork plate 1223 is in a U shape, the thickness of the fork plate 1223 is smaller than the height of the supporting legs, and the width of the opening of the fork plate 1223 is larger than the distance between the opposite surfaces of the two supporting legs on the same supporting rod. The fork plate 1223 is slidably mounted on the two horizontal sliding rails 1222, the opening of the fork plate 1223 faces the first linear module 111, the sliding motor 1225 is fixed on one side of the fork plate 1223 facing away from the first linear module 111, the rotating shaft of the sliding motor 1225 is connected with a sliding gear, the sliding gear is meshed with the rack 1224, and the sliding motor 1225 drives the fork plate 1223 to move to the upper side of the first linear module 111 along the horizontal sliding rail 1222 through the sliding gear and the rack 1224, so that the storage piece can be transferred between the fork plate 1223 and the upper bracket 113. When the middle conveying assembly 12 conveys the color comparison tube, the fork plate 1223 supports the two ends of the accommodating member along the axial direction of the first linear module 111 from below.
Referring to fig. 2, the lower conveying assembly 13 includes a third linear module 131, a lower bracket cylinder 132 and a lower bracket 133, the first linear module 111 is a screw rod type, the third linear module 131 is mounted on the lower layer of the workbench 8, the third linear module 131 is parallel to the first linear module 111, and one end of the third linear module 131 is disposed at the lower end of the second linear module 121. The lower support cylinder 132 is vertically arranged, the cylinder body of the lower support cylinder 132 is fixed on the sliding block of the third linear module 131, and the piston rod of the lower support cylinder 132 is fixedly connected with the lower bracket 133. The lower bracket 133 includes a lower plate horizontally disposed, and the length of the lower plate in the axial direction of the third linear module 131 is smaller than the width of the opening of the fork plate 1223, and the lower plate supports the middle of the receiving member from below when the lower conveying assembly 13 conveys the cuvette.
Referring to FIG. 2, the take-up assembly 14 includes a mix take-up 141, a transfer solution take-up 142, a centrifugal take-up 143, and a digestion take-up 144. The mixing and transferring machine 141 is mounted on the workbench 8 between the mixing and transferring mechanism 3 and the first linear module 111, and transfers the cuvette between the mixing and transferring mechanism 3 and the first linear module 111. The transfer robot 142 is mounted on the table 8 between the transfer mechanism 4 and the first linear module 111, and transfers the cuvette between the transfer mechanism 4 and the first linear module 111. The centrifugal pick-up machine 143 is mounted on the table 8 between the centrifugal mechanism 6 and the second linear module 121 and picks up the cuvette between the centrifugal mechanism 6 and the second linear module 121. The digestion and pickup machine 144 is provided on the table 8 between the digestion mechanism 7 and the third linear module 131 and picks up the cuvette between the digestion mechanism 7 and the third linear module 131. The storage pieces with the cuvette are transferred between the mixing and transferring machine 141 and the upper bracket 113, between the transfer liquid and transferring machine 142 and the upper bracket 113, between the centrifugal and transferring machine 143 and the fork plate 1223, and between the digestion and transferring machine 144 and the lower pallet to transfer the cuvette. Referring to fig. 4, the blending and taking-up machine 141 includes two blending rails 1411, a blending and taking-up cylinder 1412 and a taking-up plate 1413, the two blending rails 1411 are parallel to each other, the blending rails 1411 are horizontally installed on the table 8, the taking-up plate 1413 is slidably connected with the two blending rails 1411, and the taking-up plate 1413 is U-shaped and opens toward one side of the first linear module 111. The mixing and sending cylinder 1412 is a rodless cylinder, the mixing and sending cylinder 1412 is arranged between the workbench 8 and the sending plate 1413, two ends of the mixing and sending cylinder 1412 are respectively fixed on the workbench 8 through mounting seats, and a sliding block of the mixing and sending cylinder 1412 is fixedly connected with the sending plate 1413 and drives the sending plate 1413 to move towards and back to the first linear module 111. When the cuvette is transferred, the transfer plate 1413 holds the two ends of the storage member in the axial direction of the first linear module 111 from below. The mixing and delivering machine 141, the transfer liquid delivering machine 142, and the digestion and delivering machine 144 have the same structure. Referring to fig. 5, the centrifugal pick-up machine 143 includes a support plate 1431, a slide plate 1435 and a pick-up jaw 1433, two mutually parallel centrifugal guide rails 1432 are mounted on the support plate 1431, two ends of the slide plate 1435 are respectively connected with the two centrifugal guide rails 1432 in a sliding manner, the slide plate 1435 is connected with a pick-up driving piece 1436, the pick-up driving piece 1436 drives the slide plate 1435 to slide along the centrifugal guide rails 1432, and the pick-up driving piece 1436 is a rodless cylinder. The pick-up clamping jaw 1433 is mounted on one side of the sliding plate 1435 facing the second linear module 121, the type of the pick-up clamping jaw 1433 is HFT25×100deg.S, a clamping plate 1434 is mounted on each finger of the pick-up clamping jaw 1433, when the cuvette is picked up, the clamping plate 1434 is driven by the pick-up clamping jaw 1433 to clamp two opposite side surfaces of the storage piece, and then the storage piece is driven by the pick-up driving piece 1436 to move to the upper portion of the supporting plate 1431.
The liquid feeding mechanism 2 is located the one end that second straight line module 121 was kept away from to first straight line module 111, and liquid feeding mechanism 2 includes the liquid filling machine, and the liquid filling machine is equipped with multiunit liquid filling opening, and multiunit liquid filling opening all locates the top of first straight line module 111, multiunit liquid filling opening and a plurality of color comparison tubes one-to-one on the receiver. Each set of ports has a plurality of ports, each port capable of providing a different reagent. After the upper conveying component 11 conveys the colorimetric tubes to the corresponding positions below the liquid adding holes, the liquid adding mechanism 2 ejects the reagent from the corresponding liquid adding holes into the corresponding colorimetric tubes, so that the automatic reagent adding is realized.
Referring to fig. 6, the kneading rotary cap mechanism 3 includes a kneading rotary cap assembly 31, a hugging assembly 32, and a cap transfer assembly 33, the kneading rotary cap assembly 31 is disposed on one side of the conveying mechanism 1, the hugging assembly 32 and the cap transfer assembly 33 are disposed on one side of the kneading rotary cap assembly 31, respectively, and the kneading rotary cap assembly 31 is movable between the kneading transfer machine 141, the hugging assembly 32, and the cap transfer assembly 33. The mixing cover rotating assembly 31 drives the colorimetric tube to be transferred between the mixing and delivering machine 141 and the enclasping assembly 32, and the enclasping assembly 32 clamps the colorimetric tube, so that the colorimetric tube is positioned accurately, the tube cover is convenient to install and take down, and meanwhile, the liquid in the colorimetric tube is convenient to mix uniformly.
Referring to fig. 6 and 7, the mixing cover rotating assembly 31 includes a mechanical arm 311, a lifting cylinder 314, a mixing clamping jaw 312, a rotating cylinder 315, a connecting plate 316 and an air nozzle 313, wherein the lifting cylinder 314 and the mixing clamping jaw 312 are both mounted at the tail end of the mechanical arm 311, the lifting cylinder 314 is disposed at one side of the mixing clamping jaw 312, and the mixing clamping jaw 312 is a pneumatic clamping jaw. One end of the air tap 313 connected with the air pipe is hinged to a piston rod of the lifting air cylinder 314, the air outlet end of the air tap 313 is hinged to a piston rod of the rotary air cylinder 315, the cylinder body of the rotary air cylinder 315 is hinged to a connecting plate 316, the connecting plate 316 is fixedly connected with the piston rod of the lifting air cylinder 314, and the rotary air cylinder 315 can drive the air tap 313 to rotate and enable the air outlet of the air tap 313 to face the mixing clamping jaw 312 from the obliquely lower direction. After the pipe cover on the colorimetric pipe is taken down by the mixing clamping jaw 312, the lifting cylinder 314 drives the air tap 313 to descend to a set position lower than the mixing clamping jaw 312, and then the rotary cylinder 315 drives the air tap 313 to rotate, so that the air outlet of the air tap 313 faces the inside of the pipe cover on the mixing clamping jaw 312, the residual liquid in the pipe cover is blown dry by air sprayed by the air tap 313, and adverse influence of the residual liquid on the ammonia nitrogen content of other subsequent water is reduced.
Referring to fig. 8, the enclasping assembly 32 includes enclasping jaws 321, the enclasping jaws 321 are pneumatic jaws, two fingers of the enclasping jaws 321 are respectively provided with enclasping plates 322, opposite end surfaces of the two enclasping plates 322 are arc surfaces 323, the radius of the arc surfaces 323 is equal to that of the cuvette, and the two arc surfaces 323 are aligned with each other. When transferring the cuvette from the blending and delivering machine 141 to the enclasping assembly 32, the mechanical arm 311 and the blending clamping jaw 312 transfer the cuvette between the two arc surfaces 323, and the enclasping clamping jaw 321 drives the two enclasping plates 322 to be close to each other, so as to clamp the cuvette, and facilitate the air tap 313 to blow and mix the liquid in the cuvette and the installation and the removal of the tube cover. When the cuvette is transferred from the enclasping assembly 32 to the mixing and delivering machine 141, the enclasping clamping jaw 321 drives the two enclasping plates 322 to be away from each other, the cuvette is loosened, then the mechanical arm 311 drives the mixing clamping jaw 312 to clamp the cuvette and move to the mixing and delivering machine 141, and then the cuvette is placed on the mixing and delivering machine 141.
Referring to fig. 9, the tube cap transfer assembly 33 includes a tube cap storage rack 331, a tube cap pushing plate 333, and a pushing plate cylinder 335, a vertically penetrating storage hole 332 is provided in the tube cap storage rack 331, a tube cap is put in from an upper end of the storage hole 332 and taken out from a lower end of the storage hole 332, the tube cap pushing plate 333 is provided under the tube cap storage rack 331, and the pushing plate cylinder 335 is connected to the tube cap pushing plate 333 and can push the tube cap pushing plate 333 to move. The tube cap pushing plate 333 is provided with a first upper surface 336 and a second upper surface 337 distributed along the axial direction of the cylinder, the first upper surface 336 is lower than the second upper surface 337, the first upper surface 336 is provided with a tube cap groove 334 capable of aligning the storage hole 332, the distance between the groove bottom of the tube cap groove 334 and the second upper surface 337 is smaller than the height of the tube cap, the distance between the second upper surface 337 and the storage hole 332 is smaller than the height of the tube cap, and the cylinder pushes the tube cap pushing plate 333 to move so that the tube cap groove 334 enters and leaves the lower part of the tube cap storage rack 331.
Referring to fig. 10, the liquid transferring mechanism 4 includes a liquid transferring movable module 41, a first peristaltic pump 42 and a second peristaltic pump 43, the liquid transferring movable module 41 is mounted on the workbench 8, the liquid transferring movable module 41 is a conventional triaxial module, and the position X, Y and the position Z of the tail end of the liquid transferring movable module 41 can be adjusted, wherein the direction X is the same as the direction of the first linear module 111. The first peristaltic pump 42 is installed at one side of the end of the liquid transferring movable module 41 facing the mixing cover rotating mechanism 3, a liquid pumping port of the first peristaltic pump 42 can be connected with a colorimetric tube on the mixing and delivering machine 141, and a liquid outlet of the first peristaltic pump 42 can be connected with a colorimetric tube on the liquid transferring and delivering machine 142. The second peristaltic pump 43 is installed at one side of the end of the liquid transferring movable module 41 facing the detection mechanism 5, a liquid pumping port of the second peristaltic pump 43 can be connected with a colorimetric tube on the liquid transferring and conveying machine 142, and a liquid outlet of the second peristaltic pump 43 can be connected with the detection mechanism 5. The first peristaltic pump 42 quantitatively transfers the liquid of the colorimetric tubes on the mixing and delivering machine 141 into the colorimetric tubes on the transfer liquid and delivering machine 142 respectively, so that the liquid to be detected can be added with the color reagent according to the quantity; and the second peristaltic pump 43 quantitatively transfers the liquid with the chromogenic reagent added in the colorimetric tube on the transfer liquid receiving and delivering machine 142 to the detection mechanism 5 for detection, so as to obtain the contents of ammonia nitrogen, total phosphorus and hexavalent chromium in the liquid to be detected. In addition, the first peristaltic pump 42 and the second peristaltic pump 43 are respectively connected with a water inlet pipe and a water outlet pipe (not shown in the figure), and when the liquid in one colorimetric tube is transferred, purified water is input into the first peristaltic pump 42 or the second peristaltic pump 43 through the water inlet pipe for cleaning, and the cleaned wastewater is discharged from the water outlet pipe.
Referring to fig. 11, the centrifugal mechanism 6 includes a centrifugal movable module 61, a centrifugal clamping jaw 62 and a centrifugal machine 63, the centrifugal movable module 61 is a conventional triaxial module, and the X, Y and Z three-way positions of the end of the centrifugal movable module 61 can be adjusted, wherein the X-direction is the same as the direction of the first linear module 111. The centrifugal clamping jaw 62 is arranged at the tail end of the centrifugal movable module 61, the centrifugal machine 63 is arranged on one side of the centrifugal clamping jaw 62 and on the moving track of the centrifugal clamping jaw 62, the centrifugal clamping jaw 62 is used for clamping and loosening the cuvette, and the centrifugal movable module 61 drives the cuvette to be transferred between the centrifugal receiver 143 and the centrifugal machine 63.
Referring to fig. 12, the digestion mechanism 7 includes a longitudinal rail 71, a longitudinal driver 73, a lateral rail 72, a lateral driver 74, a lifting module 75, digestion jaws 76, a digestion instrument 70, and a digestion cap cylinder 78, the lateral rail 72 is slidably mounted on the longitudinal rail 71, and a slider of the lifting module 75 is slidably mounted on the lateral rail 72. The transverse guide rail 72 is provided with a longitudinal driving piece 73, the longitudinal driving piece 73 is in driving connection with the longitudinal guide rail 71 and drives the transverse guide rail 72 to move along the longitudinal guide rail 71, the lifting module 75 is provided with a transverse driving piece 74, the lifting module 75 is a synchronous belt type linear module, the transverse driving piece 74 is in driving connection with the transverse guide rail 72 and drives the lifting module 75 to move along the transverse guide rail 72, and the longitudinal guide rail 71, the longitudinal driving piece 73, the transverse guide rail 72, the transverse driving piece 74 and the lifting module 75 form a triaxial module together. The transverse guide rail 72 is provided with a transverse rack, the longitudinal guide rail 71 is provided with a longitudinal rack, the transverse driving piece 74 is a motor, the transverse driving piece 74 is connected with the transverse rack through a gear, the longitudinal driving piece 73 is a motor, and the longitudinal driving piece 73 is connected with the longitudinal rack through a gear. Digestion clamping jaw 76 installs on lifting module 75 and can follow lifting module 75 and go up and down, and digestion instrument 70 locates the side that transverse guide 72 installed digestion clamping jaw 76. The digestion cover cylinder 78 is slidably connected with the longitudinal guide rail 71 through a mounting plate 79, the mounting plate 79 is provided with a cover moving driving member 77, the cover moving driving member 77 is a motor, and the cover moving driving member 77 is connected with the longitudinal rack through a gear. The cover digestion cylinder 78 is connected with the cover of the digestion instrument 70, the cover digestion cylinder 78 drives the cover of the digestion instrument 70 to ascend and descend so as to realize the closing and opening of the digestion instrument 70, and the cover moving driving piece 77 drives the cover of the digestion instrument 70 to move along the longitudinal guide rail 71 so as to enable the cuvette to be vertically put in and taken out of the digestion instrument 70.
The water quality detection system is also provided with a controller, the controller is respectively connected with the conveying mechanism 1, the liquid adding mechanism 2, the mixing rotating cover mechanism 3, the liquid rotating mechanism 4, the detecting mechanism 5, the centrifugal mechanism 6 and the digestion mechanism 7, and the controller can control the operation and the operation states of the conveying mechanism 1, the liquid adding mechanism 2, the mixing rotating cover mechanism 3, the liquid rotating mechanism 4, the detecting mechanism 5, the centrifugal mechanism 6 and the digestion mechanism 7 in a mode of sending corresponding control instructions. It is understood that in the control of the controller to each mechanism, the water quality detection system may also be configured to control each mechanism by providing a sensor or other sensing component in conjunction with the controller.
The following detection methods for simultaneously detecting four indexes of ammonia nitrogen, total phosphorus and hexavalent chromium by combining the control of the controller on each mechanism are exemplified as follows: during detection, the first linear module 111 can be controlled by the controller to firstly send a group of blank colorimetric tubes to the position of the transfer liquid receiving and sending machine 142, and then the first linear module 111 is controlled to send the colorimetric tubes filled with water to be detected to the liquid adding mechanism 2 to add corresponding reagents for detecting different reagents added by the colorimetric tubes with different indexes. Then, the controller controls the first linear module 111 to convey the cuvette after adding the reagent to a set position on one side of the mixing and delivering machine 141, and controls the mixing and delivering machine 141 to deliver the cuvette to one side of the holding jaw 321 after being connected. Then the controller controls the mechanical arm 311 and the mixing clamping jaw 312 to clamp and convey the colorimetric tube on the mixing receiver 141 to the clamping jaw 321, controls the clamping jaw 321 to clamp the colorimetric tube, controls the air tap 313 to blow and mix the liquid in the colorimetric tube, and then controls the mechanical arm 311 and the mixing clamping jaw 312 to convey the colorimetric tube at the clamping jaw 321 back to the mixing receiver 141. In the same manner, the controller controls the mechanical arm 311, the mixing clamping jaw 312, the air tap 313 and the holding clamping jaw 321 to sequentially transfer, blow and mix the residual colorimetric tubes and then return the residual colorimetric tubes to the mixing pick-up machine 141. For the colorimetric tube for detecting ammonia nitrogen, after blowing and mixing at the holding clamping jaw 321, the controller controls the mechanical arm 311 and the mixing clamping jaw 312 to grasp the tube cover from the tube cover pushing plate 333, the grasped tube cover is mounted on the colorimetric tube at the holding clamping jaw 321, and then the mechanical arm 311 and the mixing clamping jaw 312 are controlled to transfer the colorimetric tube back to the mixing pick-up machine 141. After all the color comparison tubes are uniformly mixed, the controller controls the first linear module 111 to convey the color comparison tube to one side of the second linear module 121, then controls the sliding motor 1225 to drive the fork plate 1223 to connect the color comparison tube on the upper bracket 113 and convey the color comparison tube to a set position on one side of the centrifugal receiver 143, and then controls the centrifugal receiver 143 to connect and convey the color comparison tube to the lower part of the centrifugal clamping jaw 62. Then the controller controls the centrifugal movable module 61 and the centrifugal clamping jaw 62 to grasp the colorimetric tube for detecting the ammonia nitrogen content at the position of the centrifugal receiver 143, transfers the colorimetric tube into the centrifugal machine 63, and then controls the centrifugal machine 63 to centrifuge the colorimetric tube. After all of the cuvettes for detecting ammonia nitrogen content are transferred into the centrifuge 63, the controller controls the centrifuge receiver 143 to return other cuvettes not transferred into the centrifuge 63 to the fork plate 1223. The second linear module 121 conveys the cuvette to one end of the third linear module 131 and controls the sliding motor 1225 to drive the fork plate 1223 to convey the cuvette to the upper part of the lower bracket 133, then the controller controls the lower bracket cylinder 132 to drive the lower bracket 133 to pass through the cuvette and convey the cuvette to one side of the digestion and delivery machine 144, and then controls the digestion and delivery machine 144 to pass through the cuvette and convey the cuvette to the lower part of the digestion clamping jaw 76. The controller controls the longitudinal driving member 73, the transverse driving member 74, the lifting module 75 and the digestion clamping jaw 76 to respectively transport the colorimetric tubes for detecting the total nitrogen and the total phosphorus into the digestion instrument 70, then controls the digestion cover cylinder 78 to seal the opening of the digestion instrument 70 with the cover of the digestion instrument 70, and then controls the digestion instrument 70 to digest the colorimetric tubes. After digestion is completed, the controller controls the digestion mechanism 7 to replace the cuvette in the digestion receiver 144, then controls the conveying mechanism 1 to convey the cuvette in the original path back to the centrifugal receiver 143, then controls the centrifugal mechanism 6 to grasp the centrifuged cuvette and replace the cuvette in the centrifugal receiver 143, and then controls the conveying mechanism 1 to convey the cuvette in the original path back to the mixing receiver 141, and at the moment, the temperature of the cuvette completed with digestion is basically reduced to a set range. After the mechanical arm 311 and the mixing clamping jaw 312 are controlled by the controller to grasp and place the colorimetric tube for detecting ammonia nitrogen at the position of the holding clamping jaw 321 to clamp, the tube cover is taken down, the air tap 313 is controlled to blow the interior of the tube cover for a set time, the tube cover is placed back into the storage hole 332 of the tube cover storage rack 331, and then the mechanical arm 311 and the mixing clamping jaw 312 are controlled to place the colorimetric tube with the tube cover taken down back to the mixing pickup machine 141. Then the controller controls the first peristaltic pump 42 to transfer the liquid in each cuvette to each blank cuvette at the transfer liquid receiving and delivering machine 142 according to a preset amount, and controls the conveying mechanism 1 to convey the cuvette at the transfer liquid receiving and delivering machine 142 to the liquid adding mechanism 2, and the liquid adding mechanism 2 injects the corresponding color reagent into each cuvette. After the addition of the color reagent is completed, the controller controls the conveying mechanism 1 to convey color comparison tubes to the liquid transfer machine 142, then controls the second peristaltic pump 43 to respectively extract liquid in each color comparison tube according to a preset amount and convey the liquid to the detecting mechanism 5, and controls the detecting mechanism 5 to respectively detect the contents of ammonia nitrogen, total phosphorus and hexavalent chromium in the conveyed liquid to obtain the contents of ammonia nitrogen, total phosphorus and hexavalent chromium in water to be detected. After all the color comparison tubes are detected, the controller controls the conveying mechanism 1 to convey the two groups of color comparison tubes at the position of the mixing and delivering machine 141 and the position of the transfer liquid receiving and delivering machine 142 to the recycling station for recycling.
In actual operation, one, two, three and four indexes of ammonia nitrogen, total phosphorus and hexavalent chromium can be selected and detected according to actual needs.
The implementation principle of the water quality detection system of the embodiment of the application is as follows: according to the water quality detection system, the conveying mechanism 1, the liquid adding mechanism 2, the mixing rotating cover mechanism 3, the liquid transferring mechanism 4, the detection mechanism 5, the centrifugal mechanism 6 and the digestion mechanism 7 are reasonably arranged, a colorimetric tube is conveyed back and forth among the liquid adding mechanism 2, the mixing rotating cover mechanism 3, the liquid transferring mechanism 4, the centrifugal mechanism 6 and the digestion mechanism 7 through the conveying mechanism 1, and the structures of the conveying mechanism 1, the liquid adding mechanism 2, the mixing rotating cover mechanism 3, the liquid transferring mechanism 4, the detection mechanism 5, the centrifugal mechanism 6 and the digestion mechanism 7 are reasonably designed to meet the requirement of automatic operation, so that four indexes of ammonia nitrogen, total phosphorus and hexavalent chromium in water are simultaneously and automatically detected, and the detection efficiency of the water is improved.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.