CN219777363U - Pipeline hydrostatic test device for sewage treatment - Google Patents
Pipeline hydrostatic test device for sewage treatment Download PDFInfo
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- CN219777363U CN219777363U CN202320850879.3U CN202320850879U CN219777363U CN 219777363 U CN219777363 U CN 219777363U CN 202320850879 U CN202320850879 U CN 202320850879U CN 219777363 U CN219777363 U CN 219777363U
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- test device
- sewage treatment
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- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 22
- 239000010865 sewage Substances 0.000 title claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 33
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- -1 physical Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Pipe Accessories (AREA)
Abstract
The utility model relates to the technical field of pipeline hydrostatic tests and discloses a pipeline hydrostatic test device for sewage treatment, which comprises a bottom plate, wherein a lower clamping seat is arranged above the bottom plate, an upper clamping seat is arranged above the lower clamping seat, a fixed pipeline is arranged between the lower clamping seat and the upper clamping seat, one side of the fixed pipeline is connected with a convenient connection assembly, a fixing frame is arranged above the bottom plate, and a blocking assembly is arranged inside the fixing frame. Through the coupling assembling of being convenient for that sets up, realize being convenient for carry out quick installation and fixed to the pipeline, reduce workman's intensity of labour to a certain extent, improve the efficiency of work, through being located the pipeline outside with second connecting piece and first connecting piece, make mutually supporting between first connecting piece and the second connecting piece, then utilize threaded connection between first fixing bolt and the first fixation nut, make compress tightly between first connecting piece and the second connecting piece.
Description
Technical Field
The utility model relates to the technical field of pipeline hydrostatic tests, in particular to a pipeline hydrostatic test device for sewage treatment.
Background
Sewage treatment is a process for removing contaminants from municipal wastewater, mainly including domestic sewage and some industrial wastewater, physical, chemical and biological processes are used to remove contaminants and produce treated wastewater sufficient for safe release into the environment, and a byproduct of sewage treatment is semi-solid waste or sludge, called sewage sludge, which must be further treated to be suitable for land treatment or application to land.
In the course of the treatment to sewage, in order to effectively obtain preventing untreated sewage infiltration to soil inside, carry the in-process to sewage and need utilize the sewer pipe to carry sewage, in the course of making sewer pipe, in order to better understanding sewer pipe's compressive capacity, need carry out hydrostatic test intensity test to the pipeline to ensure that sewer pipe can satisfy the work demand.
Chinese patent publication No.: CN214844505U discloses a municipal pipeline hydrostatic test device, which comprises a supporting rack, shell and inlet tube, the inboard of support frame is equipped with the shell, the inlet tube has been seted up to the right-hand member of shell, and the outlet pipe has been seted up to the left end of shell, the middle part fixedly connected with display screen of support frame upper end, the right side of display screen is equipped with control panel, control panel fixedly connected with is on the right side of support frame upper end, the left end swing joint of outlet pipe has the pipeline, the left and right sides of display screen is fixedly connected with connecting wire respectively, the connecting wire runs through in the upper end of support frame, the inboard at support frame front and back is fixedly connected with bracing piece respectively, this kind of municipal pipeline hydrostatic test device is through the improvement of structure, can make device and pipeline carry out sealing connection, the condition that the infiltration appears in the junction of avoiding device and pipeline carries out hydrostatic test effectively, the practicality is strong.
Foretell prior art, through support frame, shell and the inlet tube that sets up, the inboard of support frame is equipped with the shell, the inlet tube has been seted up to the right-hand member of shell, and the outlet pipe has been seted up to the left end of shell, can make device and pipeline carry out sealing connection, avoid the device to appear the condition of infiltration with the junction of pipeline, carry out hydrostatic test to the pipeline effectively, the practicality is strong, but current hydrostatic test device is in the use, sealing connection is carried out the pipeline to the pipeline connection fixed mode that will survey through two sets of ring flanges more, and it is comparatively troublesome to pass through flange installation fixed operation in the use, the staff needs to be fixed bolt and nut connection many times, work efficiency is reduced to a certain extent, workman's intensity of labour is great.
Disclosure of Invention
The utility model aims to provide a pipeline hydraulic pressure test device for sewage treatment, which solves the problems that in the background technology, pipeline connection and fixation are usually carried out by sealing connection of two groups of flanges in the pipeline hydraulic pressure test process, and the labor intensity of workers is high.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a pipeline hydrostatic test device for sewage treatment, includes the bottom plate, the top of bottom plate is provided with down the grip slipper, and is provided with the grip slipper down the top of grip slipper, install fixed pipeline between lower grip slipper and the upper grip slipper, and one side of fixed pipeline is connected with the coupling assembling of being convenient for, the top of bottom plate is provided with the mount, and mount internally mounted has the jam subassembly;
the convenient connecting assembly comprises a threaded sleeve, a sealing gasket is arranged at the bottom of the inner side of the threaded sleeve, an external threaded pipeline is installed in the threaded sleeve, a first connecting piece is arranged at one end of the external threaded pipeline, a second connecting piece is installed on one side of the first connecting piece, a sealing sleeve is arranged on the inner side of the first connecting piece, a first fixing bolt is arranged in the second connecting piece, and a first fixing nut is installed on the outer side of the first fixing bolt;
the blocking assembly comprises a screw hole, a screw rod is arranged inside the screw hole, one end of the screw rod is connected with a handle, a bearing seat is arranged outside one end of the screw rod away from the handle, a connecting plate is arranged on one side of the bearing seat, and a rubber plug is connected on one side of the connecting plate.
Preferably, the fixed pipeline top is provided with the manometer, and the fixed pipeline keeps away from the one end of being convenient for coupling assembling and be connected with the communication pipeline, the inside second fixing bolt that is provided with of lower grip slipper, and the second fixing bolt outside is provided with second fixation nut.
Preferably, the thread bush is arranged outside the fixed pipeline and movably connected with the fixed pipeline, the thread bush is matched with the external thread pipeline, and the thread bush is in threaded connection with the external thread pipeline.
Preferably, the sealing gasket is matched with the threaded sleeve, the sealing gasket is made of rubber, and the external threaded pipeline is fixedly connected with the first connecting piece.
Preferably, one side of the first connecting piece is connected with a hinge, the first connecting piece and the second connecting piece are connected through the hinge in a rotating mode, and the sealing sleeves are respectively arranged inside the second connecting piece and the first connecting piece.
Preferably, the first fixing bolt penetrates through the first connecting piece and the second connecting piece and extends to the outer side of the first connecting piece, the first fixing nut is matched with the first fixing bolt, and the first fixing nut is in threaded connection with the first fixing bolt.
Preferably, the screw rod is matched with the screw hole, the screw rod is in threaded connection with the screw hole, the screw rod penetrates through the screw hole and extends to the outer side of the screw rod, and the screw rod is fixedly connected with the handle.
Preferably, the bearing seat is fixedly connected with the connecting plate, and the connecting plate is fixedly connected with the rubber plug.
Compared with the prior art, the utility model has the following beneficial effects:
the first connecting component is convenient to install and fix the pipeline, labor intensity of workers is reduced to a certain extent, working efficiency is improved, the second connecting component and the first connecting component are located on the outer side of the pipeline, the first connecting component and the second connecting component are matched with each other, the first fixing bolt is connected with the first fixing nut through threads, the first connecting component and the second connecting component are tightly pressed, the pipeline is located between the first connecting component and the second connecting component and is in a clamping sealing state, the threaded sleeve is placed on the outer side of the external threaded pipeline, the threaded sleeve is connected with the external threaded pipeline through threads, the sealing gasket is tightly pressed between the threaded sleeve and the external threaded pipeline, and the device is simple in operation and convenient to operate.
The second, the utility model realizes the closing of one end of the pipeline through the set blocking component, so as to detect the water pressure of the pipeline, and the handle is rotated to drive the screw to rotate, so that the screw is positioned in the screw hole to rotate, and the screw is positioned in the screw hole to move when rotating, so that the screw moves to drive the bearing seat to move, the bearing seat moves to drive the connecting plate to move, the connecting plate drives the rubber plug to move, so that the rubber plug seals the opening of one end of the pipeline, and the device has simple structure and is convenient to operate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is an exploded view of a construction of a convenient connection assembly of the present utility model;
FIG. 4 is a schematic view of the connection structure between the screw and the rubber stopper according to the present utility model.
In the figure: 1. a bottom plate; 2. a lower clamping seat; 3. an upper clamping seat; 4. fixing the pipeline; 5. the connection assembly is convenient; 501. a thread sleeve; 502. a sealing gasket; 503. an externally threaded pipe; 504. a first connector; 505. a second connector; 506. sealing sleeve; 507. a first fixing bolt; 508. a first fixing nut; 6. a fixing frame; 7. a plug assembly; 701. a screw hole; 702. a screw; 703. a handle; 704. a bearing seat; 705. a connecting plate; 706. a rubber stopper; 8. a pressure gauge; 9. a communication pipe; 10. a second fixing bolt; 11. and a second fixing nut.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, a pipeline hydrostatic test device for sewage treatment comprises a bottom plate 1, a lower clamping seat 2 is arranged above the bottom plate 1, an upper clamping seat 3 is arranged above the lower clamping seat 2, a fixed pipeline 4 is arranged between the lower clamping seat 2 and the upper clamping seat 3, one side of the fixed pipeline 4 is connected with a convenient connection component 5, a fixing frame 6 is arranged above the bottom plate 1, and a blocking component 7 is arranged inside the fixing frame 6; the convenient connecting assembly 5 comprises a threaded sleeve 501, a sealing gasket 502 is arranged at the bottom of the inner side of the threaded sleeve 501, an external threaded pipeline 503 is arranged in the threaded sleeve 501, a first connecting piece 504 is arranged at one end of the external threaded pipeline 503, a second connecting piece 505 is arranged at one side of the first connecting piece 504, a sealing sleeve 506 is arranged at the inner side of the first connecting piece 504, a first fixing bolt 507 is arranged in the second connecting piece 505, and a first fixing nut 508 is arranged at the outer side of the first fixing bolt 507; the blocking assembly 7 comprises a screw hole 701, a screw rod 702 is arranged in the screw hole 701, a handle 703 is connected to one end of the screw rod 702, a bearing seat 704 is arranged on the outer side of one end, far away from the handle 703, of the screw rod 702, a connecting plate 705 is arranged on one side of the bearing seat 704, and a rubber plug 706 is connected to one side of the connecting plate 705.
According to the technical scheme, through the convenient connection assembly 5, quick installation and fixation of the pipeline are facilitated, labor intensity of workers is reduced to a certain extent, working efficiency is improved, the second connection piece 505 and the first connection piece 504 are located on the outer side of the pipeline, the first connection piece 504 and the second connection piece 505 are matched with each other, the first connection piece 504 and the second connection piece 505 are tightly pressed by utilizing threaded connection between the first fixing bolt 507 and the first fixing nut 508, the pipeline is located between the first connection piece 504 and the second connection piece 505 and is in a clamping sealing state, the threaded sleeve 501 is placed on the outer side of the external threaded pipeline 503, the sealing gasket 502 is tightly pressed between the threaded sleeve 501 and the external threaded pipeline 503 by utilizing threaded connection between the threaded sleeve 501 and the external threaded pipeline 503, and the device is simple to operate and convenient to operate; simultaneously through the blocking assembly 7 that sets up, realize being convenient for seal the one end of pipeline to be convenient for carry out water pressure to the pipeline and detect, through rotating handle 703, make handle 703 drive screw 702 rotate, make screw 702 be located the inside rotation of screw 701, screw 702 is located the inside removal of screw 701 when rotating, make screw 702 remove and drive bearing frame 704 and remove, make bearing frame 704 remove and drive connecting plate 705 and remove, make connecting plate 705 drive rubber plug 706 and remove, make rubber plug 706 seal the one end opening of pipeline, device simple structure is convenient for operate.
Specifically, fixed pipeline 4 top is provided with manometer 8, and fixed pipeline 4 keeps away from the one end of being convenient for coupling assembling 5 and is connected with communicating pipe 9, and lower grip slipper 2 is inside to be provided with second fixing bolt 10, and the second fixing bolt 10 outside is provided with second fixation nut 11.
Through the above technical scheme, the manometer 8 that sets up is convenient for observe the inside pressure value of pipeline to the better device of going to observe of staff, the communicating tube 9 that sets up is convenient for make be connected between pipeline and the water pump, is convenient for be connected fixedly down between grip slipper 2 and the last grip slipper 3 through the second fixing bolt 10 and the second fixation nut 11 that set up, makes down grip slipper 2 and last grip slipper 3 with fixed pipeline 4 centre gripping fixed.
Specifically, the thread bush 501 is located at the outer side of the fixed pipeline 4, the thread bush 501 is movably connected with the fixed pipeline 4, the thread bush 501 is matched with the external thread pipeline 503, and the thread bush 501 is in threaded connection with the external thread pipeline 503.
Through above-mentioned technical scheme, thread bush 501 is located fixed pipeline 4 outside activity setting, and thread bush 501 is located fixed pipeline 4 outside and rotates, and fixed pipeline 4 inside be provided with thread bush 501 assorted stopper, be convenient for make thread bush 501 be located fixed pipeline 4 outside and rotate, make thread bush 501 can not remove away from fixed pipeline 4 outside, through the threaded connection between thread bush 501 and the external screw thread pipeline 503 that sets up, be convenient for more quick carry out quick connection with thread bush 501 and external screw thread pipeline 503.
Specifically, the sealing gasket 502 is matched with the threaded sleeve 501, the sealing gasket 502 is made of rubber, and the external threaded pipe 503 is fixedly connected with the first connecting piece 504.
Through the above technical scheme, sealing gasket 502 is located the inside setting of thread bush 501, and the position that is convenient for make thread bush 501 and external screw thread pipeline 503 contact is in sealed state, in the use for better sealing detection is carried out to the pipeline, and sets up fixed connection between first connecting piece 504 and the external screw thread pipeline 503, is convenient for make and is connected fixedly between first connecting piece 504 and the pipeline.
Specifically, a hinge is connected to one side of the first connecting piece 504, and the first connecting piece 504 and the second connecting piece 505 are rotatably connected by the hinge, and the sealing sleeves 506 are respectively located inside the second connecting piece 505 and the first connecting piece 504.
Through above-mentioned technical scheme, through articulated rotation between the first connecting piece 504 that sets up and the second connecting piece 505 to make first connecting piece 504 and second connecting piece 505 carry out the centre gripping to the outer wall of pipeline fixedly, the seal cover 506 of setting can make pipeline and first connecting piece 504 and the position leakproofness effect of second connecting piece 505 contact better, guarantees pipeline pressure detection's accuracy to a certain extent.
Specifically, the first fixing bolt 507 penetrates the first connecting member 504 and the second connecting member 505 and extends to the outer side thereof, the first fixing nut 508 is matched with the first fixing bolt 507, and the first fixing nut 508 is in threaded connection with the first fixing bolt 507.
Through above-mentioned technical scheme, utilize the cooperation between fixed first fixation nut 508 and the first fixing bolt 507, can compress tightly fixedly between first connecting piece 504 and the second connecting piece 505, then make the clearance between pipeline and the first connecting piece 504 smaller, guarantee at first connecting piece 504 and second connecting piece 505 at the in-process of being connected with the pipeline, the structure is more stable, and the connection is inseparabler.
Specifically, the screw 702 is matched with the screw hole 701, the screw 702 is in threaded connection with the screw hole 701, the screw 702 penetrates through the screw hole 701 and extends to the outer side of the screw 701, and the screw 702 is fixedly connected with the handle 703.
Through the above technical scheme, the screw 702 is located inside the screw 701 and rotates, so that the screw 702 can be ensured to move along the axis direction inside the screw 701 while rotating, and the handle 703 is driven to rotate the screw 702.
Specifically, the bearing seat 704 is fixedly connected with the connecting plate 705, and the connecting plate 705 is fixedly connected with the rubber plug 706.
Through the technical scheme, the screw 702 can be rotated through the arranged bearing seat 704 without driving the connecting plate 705 to rotate, so that the connecting plate 705 only moves along with the movement of the screw 702, and the connecting plate 705 is fixedly connected with the rubber plug 706, so that the connecting plate 705 moves to drive the rubber plug 706 to move.
When the pipeline to be detected is used, a worker places the pipeline to be detected on the inner side of the first connecting piece 504, then turns over the second connecting piece 505, the second connecting piece 505 and the first connecting piece 504 are fixedly connected through the first fixing bolt 507 and the first fixing nut 508, the first connecting piece 504 and the second connecting piece 505 are fixedly clamped on the outer side of the pipeline, a good sealing effect can be achieved on the pipeline through the arranged sealing sleeve 506, then the sealing gasket 502 is pressed and fixed through the threaded sleeve 501 and the external threaded pipeline 503, the sealing gasket 502 is sealed between the threaded sleeve 501 and the external threaded pipeline 503 through the arranged sealing gasket 502, then the handle 703 is rotated, the handle 703 is rotated to drive the screw 702 to rotate, the screw 702 is rotated in the screw 701 to move, the screw 702 is rotated to move in the screw 701, the bearing seat 704 is driven to move the connecting plate 705, the rubber plug 706 is driven to move, the connecting plate 706 is matched with one end of the pipeline, and the pipeline is in a sealing state, so that the pipeline can be detected in a pressure-resistant state.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit thereof, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a pipeline hydrostatic test device for sewage treatment, includes bottom plate (1), its characterized in that: a lower clamping seat (2) is arranged above the bottom plate (1), an upper clamping seat (3) is arranged above the lower clamping seat (2), a fixed pipeline (4) is arranged between the lower clamping seat (2) and the upper clamping seat (3), one side of the fixed pipeline (4) is connected with a connecting component (5) which is convenient to connect, a fixing frame (6) is arranged above the bottom plate (1), and a blocking component (7) is arranged inside the fixing frame (6);
the convenient connecting assembly (5) comprises a threaded sleeve (501), a sealing gasket (502) is arranged at the bottom of the inner side of the threaded sleeve (501), an external threaded pipeline (503) is arranged in the threaded sleeve (501), a first connecting piece (504) is arranged at one end of the external threaded pipeline (503), a second connecting piece (505) is arranged at one side of the first connecting piece (504), a sealing sleeve (506) is arranged at the inner side of the first connecting piece (504), a first fixing bolt (507) is arranged in the second connecting piece (505), and a first fixing nut (508) is arranged at the outer side of the first fixing bolt (507);
the plug assembly (7) comprises a screw hole (701), a screw rod (702) is arranged in the screw hole (701), a handle (703) is connected to one end of the screw rod (702), a bearing seat (704) is arranged on the outer side of one end, far away from the handle (703), of the screw rod (702), a connecting plate (705) is arranged on one side of the bearing seat (704), and a rubber plug (706) is connected to one side of the connecting plate (705).
2. The pipeline hydrostatic test device for sewage treatment according to claim 1, wherein: the utility model discloses a fixed pipeline, including fixed pipe (4), connecting component (5) are connected with fixed pipe (4), fixed pipe (4) top is provided with manometer (8), and fixed pipe (4) keep away from the one end of being convenient for coupling assembling (5) and be connected with communicating pipe (9), inside second fixing bolt (10) that are provided with of lower grip slipper (2), and second fixing nut (11) are provided with in the outside of second fixing bolt (10).
3. The pipeline hydrostatic test device for sewage treatment according to claim 1, wherein: the thread bush (501) is arranged on the outer side of the fixed pipeline (4), the thread bush (501) is movably connected with the fixed pipeline (4), the thread bush (501) is matched with the external thread pipeline (503), and the thread bush (501) is in threaded connection with the external thread pipeline (503).
4. The pipeline hydrostatic test device for sewage treatment according to claim 1, wherein: the sealing gasket (502) is matched with the threaded sleeve (501), the sealing gasket (502) is made of rubber, and the external threaded pipeline (503) is fixedly connected with the first connecting piece (504).
5. The pipeline hydrostatic test device for sewage treatment according to claim 1, wherein: one side of the first connecting piece (504) is connected with a hinge, the first connecting piece (504) and the second connecting piece (505) are connected through the hinge in a rotating mode, and the sealing sleeves (506) are respectively arranged inside the second connecting piece (505) and the first connecting piece (504).
6. The pipeline hydrostatic test device for sewage treatment according to claim 1, wherein: the first fixing bolt (507) penetrates through the first connecting piece (504) and the second connecting piece (505) and extends to the outer side of the first connecting piece, the first fixing nut (508) is matched with the first fixing bolt (507), and the first fixing nut (508) is in threaded connection with the first fixing bolt (507).
7. The pipeline hydrostatic test device for sewage treatment according to claim 1, wherein: the screw (702) is matched with the screw hole (701), the screw (702) is in threaded connection with the screw hole (701), the screw (702) penetrates through the screw hole (701) and extends to the outer side of the screw, and the screw (702) is fixedly connected with the handle (703).
8. The pipeline hydrostatic test device for sewage treatment according to claim 1, wherein: the bearing seat (704) is fixedly connected with the connecting plate (705), and the connecting plate (705) is fixedly connected with the rubber plug (706).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320850879.3U CN219777363U (en) | 2023-04-14 | 2023-04-14 | Pipeline hydrostatic test device for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320850879.3U CN219777363U (en) | 2023-04-14 | 2023-04-14 | Pipeline hydrostatic test device for sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219777363U true CN219777363U (en) | 2023-09-29 |
Family
ID=88102985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320850879.3U Active CN219777363U (en) | 2023-04-14 | 2023-04-14 | Pipeline hydrostatic test device for sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219777363U (en) |
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2023
- 2023-04-14 CN CN202320850879.3U patent/CN219777363U/en active Active
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