CN216559803U - Sludge sampling device with different depths for water ecological environment treatment - Google Patents
Sludge sampling device with different depths for water ecological environment treatment Download PDFInfo
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- CN216559803U CN216559803U CN202121867550.5U CN202121867550U CN216559803U CN 216559803 U CN216559803 U CN 216559803U CN 202121867550 U CN202121867550 U CN 202121867550U CN 216559803 U CN216559803 U CN 216559803U
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Abstract
The utility model relates to the technical field of water ecology, in particular to a sludge sampling device with different depths for water ecological environment management, which comprises a machine body, a cylinder vertically and fixedly arranged at the top of the machine body, a push rod vertically and fixedly arranged at the output end of the cylinder, a connecting rod, a drilling mechanism, a supporting mechanism and a damping and anti-skidding mechanism, wherein a sealing plate is pushed to be sleeved outside the connecting rod by the aid of the mounting and fixing mechanism and a scraping mechanism, first telescopic rods on two sides of the inner wall are telescopically moved back and forth inside a first telescopic sleeve to be inserted into a fixing hole for fixing, a fixing plate is fixedly arranged above the sealing plate through the supporting rod, the sealing plate and the fixing plate can be more conveniently disassembled and rapidly, so that a collecting box is conveniently collected, the sludge can be more conveniently and rapidly used, and when the device is inserted into a required depth, an electric lifting sleeve rod is opened to drive the collecting box to extend outwards, to the inside of the sludge.
Description
Technical Field
The utility model relates to the technical field of water ecology, in particular to sludge sampling devices with different depths for treating a water ecological environment.
Background
The water ecology refers to the influence of environmental water factors on organisms and the adaptation of the organisms to various water conditions, the life originates from the water, the water is an important component of all the organisms, the organisms continuously exchange water with the environment, the quality and the quantity of the water in the environment are important factors for determining the distribution, the seed composition and the quantity of the organisms and the life style, and the sludge condition at different depths of the water bottom needs to be concerned in the process of treating the water ecological environment, and the sludge needs to be sampled and detected.
In the prior art, the following problems exist:
(1) the silt of the different degree of depth of current silt sampling device can't be automatic quick more takes a sample, and the silt of the different degree of depth needs to take a sample in batches, and comparatively consuming time is used up power, and the process is comparatively loaded down with trivial details, and efficiency is also lower.
(2) The current silt sampling device can't be better when using supports the device, because the texture of silt is submerged the device very easily softer, can't make the device remain stable state when the sample, and it is convenient inadequately to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide sludge sampling devices with different depths for treating an aquatic ecological environment so as to solve the problems in the background technology.
The technical scheme of the utility model is as follows: a silt sampling device of different depths for water ecological environment improvement comprises a machine body, a cylinder vertically and fixedly arranged at the top of the machine body, a push rod vertically and fixedly arranged at the output end of the cylinder, a connecting rod, a drilling depth mechanism, a supporting mechanism and a damping antiskid mechanism, wherein the connecting rod is fixedly arranged at the telescopic end of the push rod, an installation fixing mechanism is arranged at the outer side of the connecting rod, scraping mechanisms are respectively arranged at two sides of the installation fixing mechanism, each scraping mechanism comprises an electric lifting loop bar, a collection box fixedly arranged at the telescopic end of the electric lifting loop bar, an installation sleeve fixedly arranged at one side of the outer wall of the collection box, two lead screw sliding tables respectively fixedly arranged at two sides of the inner wall of the installation sleeve and a scraping plate fixedly arranged between the two lead screw sliding tables, the drilling depth mechanism is arranged at the bottom end of the connecting rod, the supporting mechanism is fixedly arranged at two sides of the bottom of the machine body, the shock-absorbing and anti-skidding mechanisms are arranged on two sides of the top of the machine body.
Preferably, the installation fixing mechanism comprises a plurality of fixing holes formed in two sides of the outer wall of the connecting rod, a plurality of sealing plates sleeved outside the connecting rod, a plurality of first telescopic sleeves fixedly installed on two sides of the inner wall of the sealing plate respectively, a plurality of first telescopic rods installed on the inner sides of the first telescopic sleeves in a matched mode respectively, a plurality of supporting rods fixedly installed on two sides of the top of the sealing plate, a plurality of fixing plates fixedly installed on the top of the supporting rods and a plurality of mounting holes formed in two sides of the bottom of the fixing plates, and the first telescopic rods are matched with the fixing holes and are multiple in matching mode.
Preferably, bore dark mechanism including installation piece, electric rotating block, connecting block, draw-in groove, fixture block and drill bit, installation piece fixed mounting is in the connecting rod bottom, electric rotating block installs in installation piece bottom, connecting block fixed mounting is in electric rotating block bottom, the draw-in groove is seted up in the connecting block bottom, the fixture block cooperation is installed in the draw-in groove inboard, drill bit fixed mounting is in the fixture block bottom.
Preferably, the supporting mechanism comprises two lifting sleeves, two lifting rods which are respectively installed on the inner sides of the two lifting sleeves in a matched mode, a plurality of limiting holes which are respectively formed in one side of the two lifting rods, two supporting plates which are respectively arranged on the inner sides of the limiting holes in a penetrating mode and fixedly installed at the bottom ends of the two lifting rods, and the two lifting sleeves are respectively fixedly installed on two sides of the bottom of the machine body.
Preferably, the supporting mechanism further comprises a plurality of movable blocks, a plurality of movable hooks respectively movably mounted on the inner sides of the movable blocks, and two movable hooks respectively fixedly mounted on one side of the protective pad.
Preferably, shock attenuation anti-skidding mechanism includes two mounting panels, two respectively the flexible cover of second of fixed mounting at two mounting panel tops, two respectively fixed mounting at the inside fixed block of the flexible cover of second, two respectively the cooperation install at the inboard second telescopic link of two flexible covers of second, two respectively fixed mounting at the handle at two second telescopic link tops, a plurality of magic subsides of fixing in two handle outer wall both sides and two slipmats of fixing in a plurality of magic subsides outer wall of pasting respectively.
The utility model provides a sludge sampling device with different depths for treating an aquatic ecological environment by improvement, and compared with the prior art, the sludge sampling device has the following improvements and advantages:
one is as follows: the utility model is provided with the mounting and fixing mechanism and the scraping mechanism, the sealing plate is pushed to be sleeved outside the connecting rod, the first telescopic rods on the two sides of the inner wall are telescopically moved back and forth inside the first telescopic sleeves, the first telescopic rods are inserted into the fixing holes for fixing, the fixing plate is fixedly arranged above the sealing plate through the supporting rod, the sealing plate and the fixing plate can be more conveniently disassembled and assembled, so that the collecting box can be disassembled and assembled, sludge can be conveniently collected, the use is more convenient and rapid, when the device is inserted into a required depth, the electric lifting sleeve rod is opened to drive the collecting box to extend outwards to the inside of the sludge, the screw rod sliding table is opened to drive the screw rod sliding table to drive the scraper to move upwards, the scraper is inserted into the sludge, the sludge is allowed to flow into the collecting box by standing, the electric lifting sleeve rod is opened to drive the collecting box to contract inwards, therefore, the scraping plates scrape the sludge inwards, and when the top edges of the scraping plates and the bottom edges of the collecting boxes are respectively coincided with the edges of the sealing plates, the sludge is collected once, so that the sludge with different depths can be collected automatically at one time, the use efficiency of the device is improved, great manpower and time are not required to be consumed, and the device is convenient to use;
the second step is as follows: the utility model pushes the protective pad to drive the movable hook to be fixedly installed with the movable block through the arrangement of the lifting sleeve, the lifting rod, the limiting hole, the limiting rod, the supporting plate, the movable block, the movable hook and the protective pad, thereby the protection pad is fixedly arranged at the bottom of the supporting plate, the supporting plate can be better protected, because the supporting plate needs to be in direct contact with the surface of the sludge and bear the pressure of the whole device, the bottom of the supporting plate is easy to wear, the protective pad can better protect the supporting plate, the lifting rod is pulled to move the lifting rod to the required position back and forth in the lifting sleeve, the limiting rod is inserted into the limiting hole, the lifting rod is fixed, the height position of the supporting plate can be more conveniently adjusted, so that the depth of the device inserted into the sludge is adjusted, and ensure that the device keeps stable state when taking a sample, reduce and rock, promote device's result of use greatly.
Drawings
The utility model is further explained below with reference to the figures and examples:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional structural view of the present invention;
FIG. 3 is a schematic view of a three-dimensional closure structure of the present invention;
FIG. 4 is a schematic view of the scraping mechanism of the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 2 at A in accordance with the present invention;
description of reference numerals: 1. a body; 2. a cylinder; 3. a push rod; 4. a connecting rod; 5. installing a fixing mechanism; 51. a fixing hole; 52. a sealing plate; 53. a first telescopic sleeve; 54. a first telescopic rod; 55. a support bar; 56. a fixing plate; 57. mounting holes; 6. a scraping mechanism; 61. an electric lifting loop bar; 62. a collection box; 63. installing a sleeve; 64. a screw rod sliding table; 65. a squeegee; 7. a drilling depth mechanism; 71. mounting blocks; 72. an electric rotating block; 73. connecting blocks; 74. a card slot; 75. a clamping block; 76. a drill bit; 8. a support mechanism; 81. a lifting sleeve; 82. a lifting rod; 83. a limiting hole; 84. a limiting rod; 85. a support plate; 86. a movable block; 87. a movable hook; 88. a protective pad; 9. a shock-absorbing anti-slip mechanism; 91. mounting a plate; 92. a second telescopic sleeve; 93. a fixed block; 94. a tension spring; 95. a second telescopic rod; 96. a handle; 97. magic tape; 98. a non-slip mat.
Detailed Description
The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the utility model provides a sludge sampling device with different depths for water ecological environment treatment through improvement, and the technical scheme of the utility model is as follows: comprises a machine body 1, an air cylinder 2 vertically and fixedly arranged on the top of the machine body 1, a push rod 3 vertically and fixedly arranged on the output end of the air cylinder 2, a connecting rod 4, a drilling depth mechanism 7, a supporting mechanism 8 and a damping and anti-skidding mechanism 9, wherein the connecting rod 4 is fixedly arranged at the telescopic end of the push rod 3, an installation and fixing mechanism 5 is arranged on the outer side of the connecting rod 4, scraping mechanisms 6 are respectively arranged on two sides of the installation and fixing mechanism 5, each scraping mechanism 6 comprises an electric lifting loop bar 61, fixed mounting is in the collection box 62 of the flexible end of electronic lift loop bar 61, fixed mounting is in the installation cover 63 of collecting box 62 outer wall one side, two respectively fixed mounting at the lead screw slip table 64 of installation cover 63 inner wall both sides and fixed mounting at the scraper blade 65 between two lead screw slip tables 64, bores dark mechanism 7 and sets up in connecting rod 4 bottom, and 8 fixed mounting of supporting mechanism are in 1 bottom both sides of organism, and shock attenuation anti-skidding mechanism 9 sets up in 1 top both sides of organism.
The above-described specific embodiment: open lead screw slip table 64 and make lead screw slip table 64 drive scraper blade 65 rebound, make scraper blade 65 insert in the silt, it makes silt trickles to collect inside box 62 to stew, open electric lift loop bar 61 again and make electric lift loop bar 61 drive and collect box 62 internal contraction, thereby make scraper blade 65 with silt inwards scrape, when the top edge of scraper blade 65 and the bottom edge of collecting box 62 coincide with the edge of closing plate 52 respectively, just the collection of silt has been accomplished, can collect the silt of the not thorough depth more automatic disposable, the availability factor of more hoisting device.
Specifically, the mounting and fixing mechanism 5 includes a plurality of fixing holes 51 formed on both sides of the outer wall of the connecting rod 4, a plurality of sealing plates 52 fitted around the outer wall of the connecting rod 4, a plurality of first telescopic sleeves 53 fixedly mounted on both sides of the inner wall of the sealing plates 52, a plurality of first telescopic rods 54 fitted inside the first telescopic sleeves 53, a plurality of support rods 55 fixedly mounted on both sides of the top of the sealing plates 52, a plurality of fixing plates 56 fixedly mounted on the top of the support rods 55, and a plurality of mounting holes 57 formed on both sides of the bottom of the fixing plates 56, wherein the plurality of first telescopic rods 54 are matched with the fixing holes 51, the plurality of support rods 55 are matched with the mounting holes 57, and the sealing plates 52 and the fixing plates 56 can be more conveniently mounted and dismounted by providing the fixing holes 51, the sealing plates 52, the first telescopic sleeves 53, the first telescopic rods 54, the support rods 55, the fixing plates 56, and the mounting holes 57, thereby to collect box 62 and carry out the dismouting to collect to silt, use convenient more fast.
Specifically, bore dark mechanism 7 including installation piece 71, electric rotating block 72, connecting block 73, draw-in groove 74, fixture block 75 and drill bit 76, installation piece 71 fixed mounting is in connecting rod 4 bottom, electric rotating block 72 installs in installation piece 71 bottom, connecting block 73 fixed mounting is in electric rotating block 72 bottom, draw-in groove 74 is seted up in connecting block 73 bottom, fixture block 75 cooperation is installed at draw-in groove 74 inboard, drill bit 76 fixed mounting is in fixture block 75 bottom, through being provided with installation piece 71, electric rotating block 72, connecting block 73, draw-in groove 74, fixture block 75 and drill bit 76, can be more convenient install the dismantlement to drill bit 76, prevent that drill bit 76 from using wearing and tearing for a long time, can't in time change, influence subsequent use, electric rotating block 72's setting can drive drill bit 76 and rotate simultaneously, be more convenient for drilling.
Concretely, the supporting mechanism 8 includes two lifting sleeves 81, two cooperate respectively to install the lifter 82 at two lifting sleeves 81 inboards, a plurality ofly set up respectively in spacing hole 83 of two lifter 82 one sides, two run through respectively and set up in spacing pole 84 and two backup pads 85 of fixed mounting in lifter 82 bottom of spacing hole 83 inboard, two lifting sleeves 81 are fixed mounting respectively in organism 1 bottom both sides, through being provided with lifting sleeves 81, lifter 82, spacing hole 83, spacing pole 84 and backup pad 85, regulation backup pad 85 high position that can be more convenient, thereby come adjusting device to insert the degree of depth of silt, and ensure that the device keeps stable state when the sample, reduce and rock, the result of use of hoisting device greatly.
Specifically, the supporting mechanism 8 further includes a plurality of movable blocks 86, a plurality of movable hooks 87 movably mounted respectively on the inner sides of the plurality of movable blocks 86, two movable hooks 87 fixedly mounted respectively on one side of the plurality of movable hooks 87 of the protection pad 88, through being provided with the movable blocks 86, the movable hooks 87 and the protection pad 88, the supporting plate 85 can be better protected, because the supporting plate 85 needs the direct contact silt surface, and bear the pressure of the whole device, the bottom of the supporting plate 85 is worn and torn comparatively easily, the protection pad 88 can be better protects the supporting plate 85.
Specifically, the damping and anti-slip mechanism 9 comprises two mounting plates 91, two second telescopic sleeves 92 fixedly mounted at the tops of the two mounting plates 91 respectively, two fixed blocks 93 fixedly mounted inside the second telescopic sleeves 92 respectively, two second telescopic rods 95 respectively and cooperatively mounted inside the two second telescopic sleeves 92, two handles 96 fixedly mounted at the tops of the two second telescopic rods 95 respectively, a plurality of magic tapes 97 respectively adhered and fixed at two sides of the outer walls of the two handles 96 and two anti-slip pads 98 respectively adhered and fixed at the outer walls of the magic tapes 97, by arranging the mounting plates 91, the second telescopic sleeves 92, the fixed blocks 93, the telescopic springs 94, the second telescopic rods 95, the handles 96, the magic tapes 97 and the anti-slip pads 98, as the device can shake during use, generate strong vibration to hands of workers, and simultaneously water on the handles 96 can cause sliding, the effect of using is influenced, and expanding spring 94 can be better to handle 96 shock attenuation, and non-slip mat 98 is more convenient for the antiskid.
The working principle is as follows: firstly, an external power supply is switched on, the drill bit 76 is pushed to enable the drill bit 76 to drive the fixture block 75 and the clamping groove 74 to be fixedly installed, so that the drill bit 76 is fixed at the bottom end of the connecting rod 4, the protection pad 88 is pushed to enable the protection pad 88 to drive the movable hook 87 and the movable block 86 to be fixedly installed, so that the protection pad 88 is fixedly installed at the bottom of the supporting plate 85, then the lifting rod 82 is pulled to enable the lifting rod 82 to move back and forth to a required position on the inner side of the lifting sleeve 81, the limiting rod 84 is inserted into the limiting hole 83 to fix the lifting rod 82, then the sealing plate 52 is pushed to enable the sealing plate 52 to be sleeved outside the connecting rod 4, the first telescopic rods 54 on the two sides of the inner wall move back and forth in the first telescopic sleeve 53 to enable the first telescopic rods 54 to be inserted into the fixing holes 51 to be fixed, then the fixing plate 56 is fixedly installed above the sealing plate 52 through the supporting rod 55, and then the air cylinder 2 is opened to enable the air cylinder 2 to drive the push rod 3 to extend downwards, thereby make the device insert in the silt, open lead screw slip table 64 and make lead screw slip table 64 drive scraper 65 rebound, make scraper 65 insert in the silt, it makes the silt trickle to collect inside box 62 to stew, open electric lift loop bar 61 again and make electric lift loop bar 61 drive and collect box 62 shrink inwards, thereby make scraper 65 scrape the silt inwards with the scraper blade, when the bottom edge of scraper 65 and the bottom edge of collecting box 62 are identical with the edge of closing plate 52 respectively, just the collection of a silt has been accomplished, expanding spring 94 drives handle 96 and reciprocates and cushions the shock attenuation when the device production is rocked at last, wherein the model of cylinder 2 is: XYDA 24-800, the model number of electric lift loop bar 61 is: YS-NZ100-12A, the model of lead screw slip table 64 is: PKH40, model number of motorized rotation block 72: DG 60-5.
The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a silt sampling device of different degree of depth is administered to aquatic ecological environment, includes organism (1), vertical fixation installs cylinder (2) and vertical fixation install push rod (3) at cylinder (2) output at organism (1) top, its characterized in that: the automatic deep drilling machine further comprises a connecting rod (4), a deep drilling mechanism (7), a supporting mechanism (8) and a damping anti-slip mechanism (9), wherein the connecting rod (4) is fixedly arranged at the telescopic end of the push rod (3), an installation fixing mechanism (5) is arranged at the outer side of the connecting rod (4), the two sides of the installation fixing mechanism (5) are respectively provided with a scraping mechanism (6), the scraping mechanism (6) comprises an electric lifting sleeve rod (61), a collection box (62) fixedly arranged at the telescopic end of the electric lifting sleeve rod (61), a mounting sleeve (63) fixedly arranged at one side of the outer wall of the collection box (62), two lead screw sliding tables (64) respectively fixedly arranged at the two sides of the inner wall of the mounting sleeve (63) and a scraper (65) fixedly arranged between the two lead screw sliding tables (64), the deep drilling mechanism (7) is arranged at the bottom end of the connecting rod (4), the supporting mechanism (8) is fixedly arranged at the two sides of the bottom of the machine body (1), the shock absorption anti-skid mechanisms (9) are arranged on two sides of the top of the machine body (1);
the installation fixing mechanism (5) comprises a plurality of fixing holes (51) formed in two sides of the outer wall of the connecting rod (4), a plurality of sealing plates (52) sleeved outside the connecting rod (4), a plurality of first telescopic sleeves (53) fixedly installed on two sides of the inner wall of the sealing plates (52) respectively, a plurality of first telescopic rods (54) installed on the inner sides of the first telescopic sleeves (53) respectively in a matched mode, a plurality of supporting rods (55) fixedly installed on two sides of the top of the sealing plates (52), a plurality of fixing plates (56) fixedly installed on the tops of the supporting rods (55) and a plurality of mounting holes (57) formed in two sides of the bottom of each fixing plate (56), a plurality of first telescopic rods (54) are matched with the fixing holes (51), and a plurality of the supporting rods (55) are matched with the mounting holes (57).
2. The apparatus of claim 1 for sampling sludge at different depths for aquatic ecological environment remediation, wherein: bore deep mechanism (7) including installation piece (71), electric rotating block (72), connecting block (73), draw-in groove (74), fixture block (75) and drill bit (76), installation piece (71) fixed mounting is in connecting rod (4) bottom, electric rotating block (72) are installed in installation piece (71) bottom, connecting block (73) fixed mounting is in electric rotating block (72) bottom, draw-in groove (74) are seted up in connecting block (73) bottom, fixture block (75) cooperation is installed in draw-in groove (74) inboard, drill bit (76) fixed mounting is in fixture block (75) bottom.
3. The apparatus of claim 1 for sampling sludge at different depths for aquatic environment remediation, wherein: the supporting mechanism (8) comprises two lifting sleeves (81), two lifting rods (82) which are respectively installed on the inner sides of the two lifting sleeves (81) in a matched mode, a plurality of limiting holes (83) which are respectively formed in one side of the two lifting rods (82), two supporting plates (85) which are respectively arranged at the inner sides of the limiting holes (83) in a penetrating mode and fixedly installed at the bottom ends of the two lifting rods (82), and the two lifting sleeves (81) are respectively fixedly installed on two sides of the bottom of the machine body (1).
4. The apparatus of claim 1 for sampling sludge at different depths for aquatic environment remediation, wherein: the supporting mechanism (8) further comprises a plurality of movable blocks (86), a plurality of movable hooks (87) which are respectively movably arranged on the inner sides of the movable blocks (86), and two movable hooks (87) which are respectively fixedly arranged on one sides of the plurality of movable hooks (87) of the protective pad (88).
5. The apparatus of claim 1 for sampling sludge at different depths for aquatic environment remediation, wherein: shock attenuation anti-skidding mechanism (9) include two mounting panels (91), two respectively fixed mounting at the flexible cover of second (92) at two mounting panels (91) tops, two respectively fixed mounting fixed block (93) of the flexible cover of second (92) inside, two respectively the cooperation install at the inboard second telescopic link (95) of the flexible cover of two second (92), two respectively fixed mounting handle (96) at two second telescopic link (95) tops, a plurality of magic subsides (97) of fixing respectively at two handle (96) outer wall both sides are pasted respectively and two are pasted respectively fix slipmat (98) of fixing at a plurality of magic subsides (97) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121867550.5U CN216559803U (en) | 2021-08-10 | 2021-08-10 | Sludge sampling device with different depths for water ecological environment treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121867550.5U CN216559803U (en) | 2021-08-10 | 2021-08-10 | Sludge sampling device with different depths for water ecological environment treatment |
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| CN216559803U true CN216559803U (en) | 2022-05-17 |
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| CN202121867550.5U Active CN216559803U (en) | 2021-08-10 | 2021-08-10 | Sludge sampling device with different depths for water ecological environment treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115356147A (en) * | 2022-09-06 | 2022-11-18 | 菏泽市自然资源和规划局 | Sampling device |
| CN117664643A (en) * | 2023-12-04 | 2024-03-08 | 同方水务集团有限公司 | Activated sludge sampling device |
-
2021
- 2021-08-10 CN CN202121867550.5U patent/CN216559803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115356147A (en) * | 2022-09-06 | 2022-11-18 | 菏泽市自然资源和规划局 | Sampling device |
| CN117664643A (en) * | 2023-12-04 | 2024-03-08 | 同方水务集团有限公司 | Activated sludge sampling device |
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