CN219319813U - River sewage sampler convenient to use - Google Patents
River sewage sampler convenient to use Download PDFInfo
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- CN219319813U CN219319813U CN202222794723.6U CN202222794723U CN219319813U CN 219319813 U CN219319813 U CN 219319813U CN 202222794723 U CN202222794723 U CN 202222794723U CN 219319813 U CN219319813 U CN 219319813U
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- sampling
- fixed shell
- sample
- water inlet
- mounting box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The utility model belongs to the technical field of sewage samplers, and particularly relates to a convenient-to-use river sewage sampler which comprises a fixed shell, a movable column and a sampling assembly arranged on the movable column, wherein a movable cavity is formed in the fixed shell, an electric push rod is arranged in the movable cavity, an output shaft of a motor is fixedly connected with a rotating shaft, a wire winding roller is arranged at the outer end of the rotating shaft, a guide rope is arranged on the wire winding roller, the free end of the guide rope is connected with a sampling cylinder, a rubber sealing sheet is arranged at the top of a water inlet, a blocking cover is arranged at the top of the rubber sealing sheet, a first filter cover is connected with the bottom of a connecting pipe in a threaded manner, and a second filter cover is arranged in the first filter cover. The beneficial effects of the utility model are as follows: can be convenient for sampling personnel sample river water on the bridge of river limit or river course top, improve the efficiency of sampling, and can filter, intercept weeds or other solid impurity in the aquatic when the sample, guarantee the quality of water sample.
Description
Technical Field
The utility model belongs to the technical field of sewage samplers, and particularly relates to a river sewage sampler convenient to use.
Background
Along with the progress of urbanization and the development of industrial production, domestic water and industrial water pollute more and more seriously, water is the essential component of human body, but water pollution is serious now, consequently, need carry out the sample detection to the quality of river course, the measuring staff is when detecting the water in the river course, the sampling bucket is tied to the rope very long and is carried out the sample to the water in the river course in general, after the sample, pour the water sample into the sample bottle again, this kind of sampling method is unsafe, the phenomenon that the rope slipped from the hand appears easily in the sampling, sampling efficiency is lower, and the sample bucket is inconvenient for intercepting pasture and water or other impurity in the river course when the sample, lead to the quality decline of water sample.
Disclosure of Invention
In view of the above problems, an object of the present utility model is to: the river sewage sampler solves the problems that an existing sampling mode in the prior art is low in sampling efficiency, unsafe and incapable of intercepting impurities in river water to cause water sample quality reduction.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a river course sewage sampler convenient to use, includes fixed shell, movable column and sets up the sampling component on the movable column, movable cavity has been seted up to the inside of fixed shell, the inside in movable cavity is provided with electric putter, electric putter's one end is connected with the movable column, sampling component is including mounting box, motor, pivot, winding roller, wire guide and sampling tube, the outer end of movable rod is provided with the mounting box, the inside of mounting box is provided with the motor, the output shaft fixedly connected with pivot of motor, the outer end of pivot is provided with the winding roller, be provided with the wire guide on the winding roller, the free end of wire guide passes the mounting box and is connected with the sampling tube, delivery port and water inlet have been seted up respectively to the top and the bottom of sampling tube, the top of water inlet is provided with the rubber seal piece, the top that the water inlet was kept away from to the shielding lid is connected with the interior bottom of sampling tube, the bottom of water inlet is provided with first filter mantle, the bottom threaded connection of first filter mantle, the inside of first filter mantle is provided with the connecting pipe and the second filter mantle, the top of second filter mantle is connected with the connecting pipe.
The beneficial effects of the utility model are as follows: through setting up fixed shell, movable column and sampling assembly, can be convenient for the sampling personnel sample river water on the bridge of river limit or river course top, improve the security of sampler, improve the efficiency of sampling, and through setting up connecting pipe, first filter mantle and second filter mantle, can filter, intercept weeds or other solid impurity in the aquatic when the sample, guarantee the quality of water sample.
In order to stably support the sampler during sampling, sampling staff can conveniently sample:
as a further improvement of the above technical scheme: the bottom of fixed shell is provided with the bracing piece, the bottom of bracing piece is provided with the base, the right side of bracing piece is inclined and is provided with the floor, the bottom and the base fixed connection of floor.
The beneficial effects of this improvement are: through setting up bracing piece, base and floor in the bottom of fixed shell, make it constitute the triangle form, can carry out stable support to the sampler when the sampling, the sampling personnel of being convenient for sample work.
In order to be convenient for sampling personnel use this sampler to sample river:
as a further improvement of the above technical scheme: the periphery of the fixed shell is provided with a sleeve, and the top of the sleeve is provided with a handle.
The beneficial effects of this improvement are: when sampling, hold up fixed shell through the handle, can prevent to take a sample behind the section of thick bamboo water intaking because gravity effect leads to whole sampler slope, simultaneously through setting up the handle, can also be convenient for sampling personnel remove the sampler.
In order to facilitate sampling personnel to use the device to sample, the sampling efficiency of sampling personnel is improved:
as a further improvement of the above technical scheme: the left side of fixed shell is provided with the battery, the outer wall of fixed shell is provided with control switch, control switch and electric putter, equal electric connection of motor.
The beneficial effects of this improvement are: the storage battery can provide electric energy for the sampler, is convenient for use outside, controls the opening of the electric push rod and the motor through the control switch, and can improve the sampling efficiency of sampling personnel.
In order to avoid the phenomenon that the movable column slides out of the fixed shell to influence the stable support of the sampling tube in the process of prolonging the length of the movable column:
as a further improvement of the above technical scheme: the inner side wall of the right end of the fixed shell is provided with a first limiting ring, and the left end of the outer wall of the movable column is provided with a second limiting ring matched with the first limiting ring.
The beneficial effects of this improvement are: when the electric push rod pushes the movable column to slide outwards along the movable groove, the second limiting ring is driven to slide along the inner wall of the movable shell, and when the second limiting ring is contacted with the first limiting ring, the extension of the movable column reaches the maximum limit, so that the movable column is prevented from sliding out of the fixed shell to influence the stability of the sampling tube.
In order to prevent water plants or other impurities in water from entering the sampling tube along the water outlet so as to influence the quality of the water sample:
as a further improvement of the above technical scheme: the top of the water outlet is detachably connected with a sealing cover.
The beneficial effects of this improvement are: the top of the water outlet is provided with the sealing cover, so that water plants or other impurities in water can be prevented from entering the sampling tube along the water outlet during sampling.
In order to be convenient for the sampling tube take a sample to river water:
as a further improvement of the above technical scheme: and one end of the baffle cover, which is far away from the water inlet, is hinged with the sampling tube.
The beneficial effects of this improvement are: after the sampling tube is placed into river water, the water is lifted upwards against the rubber sealing sheet and the blocking cover, and the water enters the sampling tube from the position between the rubber sealing sheet and the sampling tube, so that the river water can be sampled conveniently.
Drawings
FIG. 1 is a right side perspective view of the present utility model;
FIG. 2 is a schematic elevational view of the present utility model;
FIG. 3 is a schematic view of a rear cross-sectional structure of the present utility model;
fig. 4 is a schematic view of a right-side cross-sectional structure of the present utility model.
In the figure: 1. a fixed housing; 2. a movable column; 3. a sampling assembly; 4. a movable cavity; 5. an electric push rod; 6. a mounting box; 7. a motor; 8. a rotating shaft; 9. a wire winding roller; 10. a guide rope; 11. a sampling tube; 12. a water outlet; 13. a water inlet; 14. a rubber sealing sheet; 15. a blocking cover; 16. a connecting pipe; 17. a first filter housing; 18. a second filter housing; 19. a support rod; 20. a base; 21. rib plates; 22. a handle; 23. a storage battery; 24. a control switch; 25. a first stop collar; 26. a second limiting ring; 27. sealing cover.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
Example 1:
as shown in fig. 1-4, a river sewage sampler convenient to use, including fixed shell 1, movable column 2 and set up sampling assembly 3 on movable column 2, movable cavity 4 has been seted up to the inside of fixed shell 1, the inside of movable cavity 4 is provided with electric putter 5, the one end and the movable column 2 of electric putter 5 are connected, sampling assembly 3 includes mounting box 6, motor 7, pivot 8, winding roller 9, wire guide 10 and sample section of thick bamboo 11, the outer end of movable rod is provided with mounting box 6, the inside of mounting box 6 is provided with motor 7, the output shaft fixedly connected with pivot 8 of motor 7, the outer end of pivot 8 is provided with winding roller 9, be provided with wire guide 10 on the winding roller 9, the free end of wire guide 10 passes mounting box 6 and sample section of thick bamboo 11 and is connected, the top and the bottom of sample section of thick bamboo 11 are seted up delivery port 12 and water inlet 13 respectively, the top of water inlet 13 is provided with rubber seal piece 14, the top of rubber seal piece 14 is provided with the shield 15, the second filter housing 16 is kept away from to the bottom of the filter housing 16, the filter housing 16 is provided with the filter housing 16, the filter housing 16 is connected with the second filter housing 16, the filter housing 16 is connected with the bottom 16, the filter housing 16 is connected with the filter housing 16.
Example 2:
as shown in fig. 1-4, as a further optimization of the above embodiment, a river sewage sampler convenient to use includes a fixed housing 1, a movable column 2 and a sampling assembly 3 disposed on the movable column 2, a movable cavity 4 is disposed in the fixed housing 1, an electric push rod 5 is disposed in the movable cavity 4, one end of the electric push rod 5 is connected with the movable column 2, the sampling assembly 3 includes a mounting box 6, a motor 7, a rotating shaft 8, a wire winding roller 9, a guide rope 10 and a sampling tube 11, an outer end of the movable rod is provided with a mounting box 6, a motor 7 is disposed in the mounting box 6, an output shaft fixedly connected with the rotating shaft 8 of the motor 7, a winding roller 9 is disposed at an outer end of the rotating shaft 8, a guide rope 10 is disposed on the winding roller 9, a free end of the guide rope 10 passes through the mounting box 6 and is connected with the sampling tube 11, a water outlet 12 and a water inlet 13 are disposed at a top and a bottom of the sampling tube 11, a rubber sealing piece 14 is disposed at a top of the water inlet 13, a water inlet 16 is disposed at a bottom of the sampling tube 16 is connected with a second filter cover 16, a first filter cover 16 is disposed at a bottom 16 is far from the first filter cover 16, a second filter cover 16 is disposed at a bottom 16 is far from the filter cover 16, and a second filter cover is disposed at a bottom 18. The bottom of fixed shell 1 is provided with bracing piece 19, the bottom of bracing piece 19 is provided with base 20, the right side slope of bracing piece 19 is provided with floor 21, the bottom and the base 20 fixed connection of floor 21.
Example 3:
as shown in fig. 1-4, as a further optimization of the above embodiment, a river sewage sampler convenient to use includes a fixed housing 1, a movable column 2 and a sampling assembly 3 disposed on the movable column 2, a movable cavity 4 is disposed in the fixed housing 1, an electric push rod 5 is disposed in the movable cavity 4, one end of the electric push rod 5 is connected with the movable column 2, the sampling assembly 3 includes a mounting box 6, a motor 7, a rotating shaft 8, a wire winding roller 9, a guide rope 10 and a sampling tube 11, an outer end of the movable rod is provided with a mounting box 6, a motor 7 is disposed in the mounting box 6, an output shaft fixedly connected with the rotating shaft 8 of the motor 7, a winding roller 9 is disposed at an outer end of the rotating shaft 8, a guide rope 10 is disposed on the winding roller 9, a free end of the guide rope 10 passes through the mounting box 6 and is connected with the sampling tube 11, a water outlet 12 and a water inlet 13 are disposed at a top and a bottom of the sampling tube 11, a rubber sealing piece 14 is disposed at a top of the water inlet 13, a water inlet 16 is disposed at a bottom of the sampling tube 16 is connected with a second filter cover 16, a first filter cover 16 is disposed at a bottom 16 is far from the first filter cover 16, a second filter cover 16 is disposed at a bottom 16 is far from the filter cover 16, and a second filter cover is disposed at a bottom 18. The periphery of the fixed housing 1 is provided with a sleeve, and the top of the sleeve is provided with a handle 22.
Example 4:
as shown in FIG. 3, as a further optimization of the above embodiment, a river sewage sampler convenient to use, including fixed shell 1, movable column 2 and set up sampling assembly 3 on movable column 2, movable cavity 4 has been seted up to the inside of fixed shell 1, the inside of movable cavity 4 is provided with electric putter 5, the one end and the movable column 2 of electric putter 5 are connected, sampling assembly 3 includes mounting box 6, motor 7, pivot 8, winding roller 9, wire guide 10 and sample bowl 11, the outer end of movable rod is provided with mounting box 6, the inside of mounting box 6 is provided with motor 7, the output shaft fixedly connected with pivot 8 of motor 7, the outer end of pivot 8 is provided with wire winding roller 9, be provided with wire guide 10 on the roller 9, the free end of wire guide 10 passes mounting box 6 and sample bowl 11 and is connected, delivery port 12 and water inlet 13 have been seted up respectively to the top and the bottom of sample bowl 11, the top of water inlet 13 is provided with rubber seal piece 14, rubber seal piece 14 is provided with the second filter cover 15, the top end 16 is provided with the water inlet 16 is kept away from to the second filter cover 16, the filter cover 16 is connected with the first filter cover 16, the bottom 16 is provided with the filter cover 16, the filter cover 16 is connected with the bottom 16, the filter cover 16 is connected with the filter cover 16. The left side of fixed shell 1 is provided with battery 23, the outer wall of fixed shell 1 is provided with control switch 24, control switch 24 and electric putter 5, motor 7 all electric connection.
Example 5:
as shown in FIG. 3, as a further optimization of the above embodiment, a river sewage sampler convenient to use, including fixed shell 1, movable column 2 and set up sampling assembly 3 on movable column 2, movable cavity 4 has been seted up to the inside of fixed shell 1, the inside of movable cavity 4 is provided with electric putter 5, the one end and the movable column 2 of electric putter 5 are connected, sampling assembly 3 includes mounting box 6, motor 7, pivot 8, winding roller 9, wire guide 10 and sample bowl 11, the outer end of movable rod is provided with mounting box 6, the inside of mounting box 6 is provided with motor 7, the output shaft fixedly connected with pivot 8 of motor 7, the outer end of pivot 8 is provided with wire winding roller 9, be provided with wire guide 10 on the roller 9, the free end of wire guide 10 passes mounting box 6 and sample bowl 11 and is connected, delivery port 12 and water inlet 13 have been seted up respectively to the top and the bottom of sample bowl 11, the top of water inlet 13 is provided with rubber seal piece 14, rubber seal piece 14 is provided with the second filter cover 15, the top end 16 is provided with the water inlet 16 is kept away from to the second filter cover 16, the filter cover 16 is connected with the first filter cover 16, the bottom 16 is provided with the filter cover 16, the filter cover 16 is connected with the bottom 16, the filter cover 16 is connected with the filter cover 16. The inside wall of fixed shell 1 right-hand member is provided with first spacing ring 25, the left end of movable column 2 outer wall is provided with the second spacing ring 26 with first spacing ring 25 matched with.
Example 6:
as shown in fig. 1-4, as a further optimization of the above embodiment, a river sewage sampler convenient to use includes a fixed housing 1, a movable column 2 and a sampling assembly 3 disposed on the movable column 2, a movable cavity 4 is disposed in the fixed housing 1, an electric push rod 5 is disposed in the movable cavity 4, one end of the electric push rod 5 is connected with the movable column 2, the sampling assembly 3 includes a mounting box 6, a motor 7, a rotating shaft 8, a wire winding roller 9, a guide rope 10 and a sampling tube 11, an outer end of the movable rod is provided with a mounting box 6, a motor 7 is disposed in the mounting box 6, an output shaft fixedly connected with the rotating shaft 8 of the motor 7, a winding roller 9 is disposed at an outer end of the rotating shaft 8, a guide rope 10 is disposed on the winding roller 9, a free end of the guide rope 10 passes through the mounting box 6 and is connected with the sampling tube 11, a water outlet 12 and a water inlet 13 are disposed at a top and a bottom of the sampling tube 11, a rubber sealing piece 14 is disposed at a top of the water inlet 13, a water inlet 16 is disposed at a bottom of the sampling tube 16 is connected with a second filter cover 16, a first filter cover 16 is disposed at a bottom 16 is far from the first filter cover 16, a second filter cover 16 is disposed at a bottom 16 is far from the filter cover 16, and a second filter cover is disposed at a bottom 18. The top of the water outlet 12 is detachably connected with a sealing cover 27.
Example 7:
as shown in fig. 3-4, as a further optimization of the above embodiment, a river sewage sampler convenient to use includes a fixed housing 1, a movable column 2 and a sampling assembly 3 disposed on the movable column 2, a movable cavity 4 is disposed in the fixed housing 1, an electric push rod 5 is disposed in the movable cavity 4, one end of the electric push rod 5 is connected with the movable column 2, the sampling assembly 3 includes a mounting box 6, a motor 7, a rotating shaft 8, a wire winding roller 9, a guide rope 10 and a sampling tube 11, an outer end of the movable rod is provided with a mounting box 6, a motor 7 is disposed in the mounting box 6, an output shaft fixedly connected with the rotating shaft 8 of the motor 7, a winding roller 9 is disposed at an outer end of the rotating shaft 8, a guide rope 10 is disposed on the winding roller 9, a free end of the guide rope 10 passes through the mounting box 6 and is connected with the sampling tube 11, a water outlet 12 and a water inlet 13 are disposed at a top and a bottom of the sampling tube 11, a rubber sealing piece 14 is disposed at a top of the water inlet 13, a water inlet 16 is disposed at a bottom of the sampling tube 16 is connected with a second filter cover 16, a first filter cover 16 is disposed at a bottom 16 is far from the first filter cover 16, a second filter cover 16 is disposed at a bottom 16 is far from the filter cover 16, and a second filter cover is disposed at a bottom 18. The end of the baffle cover 15 far away from the water inlet 13 is hinged with the sampling tube 11.
The working principle and the using flow of the utility model are as follows: when the device is used for sampling river water, the device is moved to a bridge beside or above a river channel, the control switch 24 is turned on, so that the device drives the electric push rod 5 to push the movable column 2 to slide outwards along the movable groove, the mounting box 6 and the sampling tube 11 are driven to move rightwards, when the sampling tube 11 moves to a proper sampling point, the motor 7 is controlled to rotate forwards by the control switch 24, the rotating shaft 8 and the winding roller 9 are driven to rotate clockwise, the lowering guide rope 10 is carried out, the sampling tube 11 is carried to move downwards, when the sampling tube 11 is lowered into the river water, the water lifts upwards against the rubber sealing sheet 14 and the baffle cover 15, and the water enters the sampling tube 11 from between the rubber sealing sheet 14 and the sampling tube 11, when water enters the sampling tube 11, water grass and other solid impurities in the water are subjected to double filtration through the first filter cover 17 and the second filter cover 18, the quality of the water sample is improved, the river water is conveniently sampled, then the motor 7 is controlled to reversely operate, the rotating shaft 8 and the winding roller 9 are driven to rotate anticlockwise, the guide rope 10 is retracted, the sampling tube 11 is taken up to move upwards, then the electric push rod 5 is controlled to reset, the movable column 2, the mounting box 6 and the sampling tube 11 are driven to move leftwards to the bank, the water sample in the sampling tube 11 is taken out from the water outlet 12, and after sampling is finished, the first filter cover 17 is unscrewed from the connecting tube 16, and impurities on the first filter cover 17 and the second filter cover 18 are cleaned.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of the utility model, and it is noted that there is virtually no limit to the specific structure which may be imposed by those skilled in the art without departing from the spirit of the utility model, and that modifications, adaptations, or variations of the foregoing features may be combined in a suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (7)
1. River course sewage sampling ware convenient to use, its characterized in that: including fixed shell (1), activity post (2) and set up sample subassembly (3) on activity post (2), activity chamber (4) have been seted up to the inside of fixed shell (1), the inside of activity chamber (4) is provided with electric putter (5), the one end and the activity post (2) of electric putter (5) are connected, sample subassembly (3) are including mounting box (6), motor (7), pivot (8), wire winding roller (9), wire guiding rope (10) and sample section of thick bamboo (11), the outer end of activity post (2) is provided with mounting box (6), the inside of mounting box (6) is provided with motor (7), the output shaft fixedly connected with pivot (8) of motor (7), the outer end of pivot (8) is provided with wire winding roller (9), be provided with wire guiding rope (10) on wire winding roller (9), the free end of wire guiding rope (10) passes mounting box (6) and is connected with sample section of thick bamboo (11), the delivery port and the bottom of sample section of thick bamboo (11) are provided with respectively rubber (12) and water inlet (14) are provided with seal piece (14) top (14) and water inlet (13), one end that keeps away from water inlet (13) of fender lid (15) is connected with the interior bottom wall of sampling tube (11), the bottom of water inlet (13) is provided with connecting pipe (16), the bottom threaded connection of connecting pipe (16) has first filter mantle (17), the inside of first filter mantle (17) is provided with second filter mantle (18), the top and the connecting pipe (16) of second filter mantle (18) are connected.
2. The conveniently used river sewage sampler according to claim 1, wherein: the bottom of fixed shell (1) is provided with bracing piece (19), the bottom of bracing piece (19) is provided with base (20), the right side slope of bracing piece (19) is provided with floor (21), the bottom and the base (20) fixed connection of floor (21).
3. The conveniently used river sewage sampler according to claim 1, wherein: the periphery of the fixed shell (1) is provided with a sleeve, and the top of the sleeve is provided with a handle (22).
4. The conveniently used river sewage sampler according to claim 1, wherein: the left side of fixed shell (1) is provided with battery (23), the outer wall of fixed shell (1) is provided with control switch (24), control switch (24) all electric connection with electric putter (5), motor (7).
5. The conveniently used river sewage sampler according to claim 1, wherein: the inner side wall of the right end of the fixed shell (1) is provided with a first limiting ring (25), and the left end of the outer wall of the movable column (2) is provided with a second limiting ring (26) matched with the first limiting ring (25).
6. The conveniently used river sewage sampler according to claim 1, wherein: the top of the water outlet (12) is detachably connected with a sealing cover (27).
7. The conveniently used river sewage sampler according to claim 1, wherein: one end of the baffle cover (15) far away from the water inlet (13) is hinged with the sampling tube (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222794723.6U CN219319813U (en) | 2022-10-24 | 2022-10-24 | River sewage sampler convenient to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222794723.6U CN219319813U (en) | 2022-10-24 | 2022-10-24 | River sewage sampler convenient to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219319813U true CN219319813U (en) | 2023-07-07 |
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ID=87034964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222794723.6U Active CN219319813U (en) | 2022-10-24 | 2022-10-24 | River sewage sampler convenient to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219319813U (en) |
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2022
- 2022-10-24 CN CN202222794723.6U patent/CN219319813U/en active Active
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