CN212255307U - Domestic indoor natural gas concentration collecting and monitoring device - Google Patents
Domestic indoor natural gas concentration collecting and monitoring device Download PDFInfo
- Publication number
- CN212255307U CN212255307U CN202020827559.2U CN202020827559U CN212255307U CN 212255307 U CN212255307 U CN 212255307U CN 202020827559 U CN202020827559 U CN 202020827559U CN 212255307 U CN212255307 U CN 212255307U
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- side wall
- half area
- natural gas
- box body
- plate
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 186
- 239000003345 natural gas Substances 0.000 title claims abstract description 42
- 238000012806 monitoring device Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
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Abstract
The utility model relates to the technical field of natural gas detection accessories, in particular to a household indoor natural gas concentration collecting and monitoring device which can adsorb methane in indoor air; the methane concentration sensor comprises a box body, a transverse plate, a box door, a handle, a methane concentration sensor and a partition plate, wherein four groups of supporting legs are arranged at the bottom end of the box body, rollers can be rotatably arranged at the bottom ends of the four groups of supporting legs, a connecting hole is transversely formed in the lower half area of the left side wall of the box body, an induced draft fan is arranged at the connecting hole, a cleaning port is formed in the lower half area of the right side wall of the box body, a cover plate is detachably arranged at the cleaning port, an exhaust pipe is communicated with the cover plate, a control processing device is arranged in the left half area of; the water tank is connected with the right half area of the top end of the transverse plate at the bottom end, and a plurality of groups of atomizing nozzles are arranged at the bottom end of the middle pipe at equal intervals.
Description
Technical Field
The utility model relates to a natural gas detects auxiliary device's technical field, especially relates to a monitoring devices is collected to domestic indoor natural gas concentration.
Background
As is well known, a household indoor natural gas concentration collecting and monitoring device is an auxiliary device for monitoring methane gas in indoor air in the process of monitoring indoor natural gas leakage conditions, and is widely used in the field of natural gas detection; the existing household indoor natural gas concentration collecting and monitoring device comprises a box body, a transverse plate, a box door, a handle, a methane concentration sensor and a partition plate, wherein four groups of supporting legs are arranged at the bottom end of the box body, rollers are rotatably arranged at the bottom ends of the four groups of supporting legs, a working cavity is arranged in the box body, the transverse plate is transversely arranged in the upper half area of the working cavity and divides the partition plate into an upper cavity and a lower cavity, a box opening is arranged in the upper half area of the front side wall of the box body and is communicated with the upper cavity, the left end of the box door is connected with the left upper side of the front side wall of the box body through a hinge, the rear end of the handle is connected with the right half area of the front side wall of the box door, a mounting hole is longitudinally arranged in the central area at the top end of the transverse, a connecting hole is transversely formed in the lower half area of the left side wall of the box body, an induced draft fan is arranged at the connecting hole, a cleaning port is formed in the lower half area of the right side wall of the box body, the cleaning port is communicated with the lower cavity, a cover plate is detachably arranged at the cleaning port, an exhaust pipe is communicated with the cover plate, a control processing device is arranged in the left half area of the top end of the transverse plate, and a display screen is arranged in the left half area of the front side wall of the box door; when the existing household indoor natural gas concentration collection monitoring device is used, the control processing device, the display screen, the methane concentration sensor and the induced draft fan are all electrically connected with a mains supply, the methane concentration sensor, the display screen and the induced draft fan are all electrically connected with the control processing device, the induced draft fan works to introduce indoor air into a lower cavity, the gas passes through the methane concentration sensor, the methane concentration sensor detects the methane concentration in the gas and sends the detected information to the control processing device, the control processing device processes the received information and then sends the processed information to the display screen for displaying, and the gas is then discharged from the exhaust pipe; present domestic indoor natural gas concentration collects monitoring devices and discovers in using, and methane concentration in the room air only can be monitored, can't handle the methane in the room air, leads to its practicality relatively poor.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a can adsorb the processing to the methane in the room air, improve the domestic indoor natural gas concentration collection monitoring devices of practicality.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration, including box, diaphragm, chamber door, handle, methane concentration sensor and baffle, the box bottom is provided with four groups of landing legs, four groups of landing leg bottoms all can rotate and be provided with the gyro wheel, the inside working chamber that is provided with of box, the diaphragm transversely is installed in the upper half region of working chamber, the diaphragm divides the baffle into upper chamber and lower chamber, the upper half region of lateral wall is provided with the case mouth before the box, the case mouth communicates with upper chamber, the chamber door left end passes through hinged joint with the upper left side of lateral wall before the box, the handle rear end is connected with the right half region of lateral wall before the chamber door, diaphragm top central area vertically is provided with the mounting hole, methane concentration sensor installs in the mounting hole, methane concentration sensor bottom is surveyed the end and is located the lower chamber, the baffle is vertically installed, a connecting hole is transversely formed in the lower half area of the left side wall of the box body, an induced draft fan is arranged at the connecting hole, a cleaning port is formed in the lower half area of the right side wall of the box body, the cleaning port is communicated with the lower cavity, a cover plate is detachably arranged at the cleaning port, an exhaust pipe is communicated with the cover plate, a control processing device is arranged in the left half area of the top end of the transverse plate, and a display screen is arranged in the left half area of the front side wall of the box door; still include water tank, connecting pipe and intermediate pipe, water tank bottom and diaphragm top right side regional connection, the inside chamber of placing that is provided with of water tank, water tank top central area are provided with the opening, the opening with place the chamber intercommunication, water tank right side wall central area transversely is provided with the perforating hole, diaphragm top right side regional vertical be provided with the fixed orifices, the connecting pipe input passes the perforating hole and stretches into to placing the intracavity, sealing connection between connecting pipe lateral wall and the perforating hole inside wall, connecting pipe bottom output passes the fixed orifices and is connected with intermediate pipe top input, sealing connection between connecting pipe lateral wall and the fixed orifices inside wall, intermediate pipe bottom equidistance is provided with multiunit atomizer, is provided with control valve and water pump on the connecting pipe, and the chamber door is preceding to be provided with the observation hole on the right side wall right.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration still includes left anchor strut and right anchor strut, left side anchor strut and right anchor strut top all with diaphragm bottom half regional connection on the right side, left anchor strut and right anchor strut bottom respectively with half regional connection on the left side of intervalve top and half regional connection on the right side.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration still includes connecting rod and push rod, connecting rod right-hand member and box left side wall first regional connection, push rod bottom and connecting rod top left side first regional connection.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration still includes the bradyseism board, bradyseism board bottom, front end and rear end are connected with box inner bottom lateral wall, interior preceding lateral wall and interior back lateral wall respectively, leave certain clearance between bradyseism board top and the diaphragm bottom.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration, the regional intercommunication of the second half of lateral wall is provided with the drain pipe before the water tank to be provided with the flow stopping valve on the drain pipe.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration still includes the steadying plate, steadying plate transverse installation is between four group's landing legs.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration, the opening part can be dismantled and be provided with the baffle.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration, methane concentration sensor and mounting hole combination department are provided with the sealing washer.
Compared with the prior art, the beneficial effects of the utility model are that: the control processing device, the display screen, the methane concentration sensor and the draught fan are electrically connected with a mains supply, the methane concentration sensor, the display screen and the draught fan are electrically connected with the control processing device, the draught fan is used for introducing indoor air into the lower cavity, the gas passes through the methane concentration sensor, the methane concentration sensor is used for detecting the methane concentration in the gas and sending the detected information to the control processing device, the control processing device is used for processing the received information and then conveying the processed information to the display screen for displaying, the gas enters the right side of the partition plate through the vent hole, a worker firstly pours the processing solution into the placing cavity from the opening, opens the control valve and the water pump, the water pump is used for spraying the processing solution in the placing cavity in a foggy form from the groups of atomizing nozzles, the processing solution reacts with the gas containing methane, and effectively removes the methane in the, can adsorb methane in the indoor air, and improve the practicability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a right side elevational view of the connection of the water tank, drain and stop valve;
FIG. 4 is a schematic view showing the connection of the cabinet, the door, the display screen, the transparent plate and the handle;
in the drawings, the reference numbers: 1. a box body; 2. a transverse plate; 3. a box door; 4. a handle; 5. a methane concentration sensor; 6. a partition plate; 7. a support leg; 8. a roller; 9. an induced draft fan; 10. a cover plate; 11. an exhaust pipe; 12. a control processing device; 13. a display screen; 14. a water tank; 15. a connecting pipe; 16. an intermediate pipe; 17. an atomizing spray head; 18. a control valve; 19. a water pump; 20. a transparent plate; 21. a left reinforcement bar; 22. a right reinforcing rod; 23. a connecting rod; 24. a push rod; 25. a buffer plate; 26. a drain pipe; 27. a flow stop valve; 28. a stabilizing plate; 29. a baffle plate; 30. and (5) sealing rings.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in figures 1 to 4, the household indoor natural gas concentration collecting and monitoring device of the utility model comprises a box body 1, a transverse plate 2, a box door 3, a handle 4, a methane concentration sensor 5 and a baffle 6, wherein the bottom end of the box body 1 is provided with four groups of supporting legs 7, the bottom ends of the four groups of supporting legs 7 can be rotatably provided with rollers 8, a working cavity is arranged inside the box body 1, the transverse plate 2 is transversely arranged in the upper half area of the working cavity, the baffle 6 is divided into an upper cavity and a lower cavity by the transverse plate 2, the upper half area of the front side wall of the box body 1 is provided with a box opening which is communicated with the upper cavity, the left end of the box door 3 is connected with the left upper side of the front side wall of the box body 1 through a hinge, the rear end of the handle 4 is connected with the right half area of the front side wall of the box door 3, the partition plate 6 is longitudinally arranged in the right half area in the lower chamber, the central area of the left side wall of the partition plate 6 is transversely provided with an air vent, the lower half area of the left side wall of the box body 1 is transversely provided with a connecting hole, the connecting hole is provided with an induced draft fan 9, the lower half area of the right side wall of the box body 1 is provided with a cleaning port, the cleaning port is communicated with the lower chamber, a cover plate 10 is detachably arranged at the cleaning port, the cover plate 10 is communicated with an exhaust pipe 11, the left half area of the top end of the transverse plate 2 is provided with a control processing device 12, and the left half area of the front; a water tank 14 is also included and, the bottom end of the water tank 14 is connected with the right half area of the top end of the transverse plate 2, a placing cavity is arranged inside the water tank 14, an opening is formed in the central area of the top end of the water tank 14 and communicated with the placing cavity, a through hole is transversely formed in the central area of the right side wall of the water tank 14, a fixing hole is longitudinally formed in the right half area of the top end of the transverse plate 2, an input end of the connecting pipe 15 penetrates through the through hole and extends into the placing cavity, the outer side wall of the connecting pipe 15 is hermetically connected with the inner side wall of the through hole, an output end of the bottom of the connecting pipe 15 penetrates through the fixing hole and is connected with an input end of the top of the middle pipe 16, a plurality of groups of atomizing nozzles 17 are arranged at equal intervals at the bottom end of the middle pipe 16, a control valve; the control processing device, the display screen, the methane concentration sensor and the draught fan are electrically connected with a mains supply, the methane concentration sensor, the display screen and the draught fan are electrically connected with the control processing device, the draught fan is used for introducing indoor air into the lower cavity, the gas passes through the methane concentration sensor, the methane concentration sensor is used for detecting the methane concentration in the gas and sending the detected information to the control processing device, the control processing device is used for processing the received information and then conveying the processed information to the display screen for displaying, the gas enters the right side of the partition plate through the vent hole, a worker firstly pours the processing solution into the placing cavity from the opening, opens the control valve and the water pump, the water pump is used for spraying the processing solution in the placing cavity in a foggy form from the groups of atomizing nozzles, the processing solution reacts with the gas containing methane, and effectively removes the methane in the, can adsorb methane in the indoor air, and improve the practicability.
The utility model discloses a domestic indoor natural gas concentration collection monitoring devices still includes left gusset rod 21 and right gusset rod 22, and left gusset rod 21 and right gusset rod 22 top all are connected with diaphragm 2 bottom right half regional connection, and left gusset rod 21 and right gusset rod 22 bottom are connected with middle tube 16 top left half regional connection and right half regional connection respectively; left side strengthening rod and right strengthening rod can consolidate the middle pipe, improve the stability in use.
The utility model discloses a domestic indoor natural gas concentration collecting and monitoring device, which also comprises a connecting rod 23 and a push rod 24, wherein the right end of the connecting rod 23 is connected with the upper half area of the left side wall of the box body 1, and the bottom end of the push rod 24 is connected with the left half area of the top end of the connecting rod 23; the staff removes the device through the push rod, and the operation is laborsaving, improves the convenience of use.
The utility model discloses a domestic indoor natural gas concentration collection monitoring devices still includes the board 25 that slowly flows, and the board 25 bottom, front end and rear end that slowly flows are connected with bottom wall, interior front side wall and interior back lateral wall in box 1 respectively, leave certain clearance between board 25 top and diaphragm 2 bottom slowly flows; the flow buffering plate can reduce the flow velocity of gas in the lower cavity, and the detection accuracy is improved.
The utility model discloses a domestic indoor natural gas concentration collecting and monitoring device, the lower half area of the front side wall of the water tank 14 is communicated with a drain pipe 26, and a check valve 27 is arranged on the drain pipe 26; and the stop valve is opened, so that the solution in the placing cavity can be discharged through the drain pipe, and the use convenience is improved.
The utility model discloses a domestic indoor natural gas concentration collecting and monitoring device, which also comprises a stabilizing plate 28, wherein the stabilizing plate 28 is transversely arranged between four groups of supporting legs 7; the stabilizing plate can support four groups of supporting legs, and the use stability is improved.
The utility model discloses a domestic indoor natural gas concentration collecting and monitoring device, the opening part can be dismantled and set up the baffle 29; the baffle can cover the opening, improves the reliability of use.
The utility model discloses a household indoor natural gas concentration collecting and monitoring device, a sealing ring 30 is arranged at the joint of a methane concentration sensor 5 and a mounting hole; the sealing washer can seal the junction of methane concentration sensor and mounting hole, improves the reliability in utilization.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration, it is at work, control processing apparatus, a display screen, methane concentration sensor and draught fan all are connected with the commercial power electricity, methane concentration sensor, display screen and draught fan all are connected with control processing apparatus electricity, draught fan work is introduced indoor air into the lower chamber, gas passes through methane concentration sensor, methane concentration sensor detects the methane concentration in the gas, and send the information detected to control processing apparatus, control processing apparatus carries the display screen after processing the information received and shows, gas passes through the air vent and enters into the baffle right side, the staff at first pours treatment solution into to placing the intracavity from the opening, open control valve and water pump, the water pump is with placing the treatment solution of intracavity from the form of vaporific blowout of multiunit atomizer, the treatment solution reacts with the gas containing methane, so that the methane in the gas is effectively removed, the methane in the indoor air can be adsorbed, and the practicability is improved; the left reinforcing rod and the right reinforcing rod can reinforce the middle pipe, so that the use stability is improved; the device is moved by the staff through the push rod, so that the operation is labor-saving, and the use convenience is improved; the flow buffering plate can reduce the flow velocity of gas in the lower cavity and improve the detection accuracy; the stop valve is opened, and the solution in the placing cavity can be discharged through the drain pipe, so that the use convenience is improved; the stabilizing plate can support the four groups of supporting legs, so that the use stability is improved; the baffle can cover the opening, so that the use reliability is improved; the sealing washer can seal the junction of methane concentration sensor and mounting hole, improves the reliability in utilization.
The utility model discloses a controlling means, methane consistency transmitter, draught fan, water pump and the display screen that monitoring devices was used are collected to domestic indoor natural gas concentration all from the market purchase, only need according to the description install use can.
The utility model discloses a processing solution that monitoring devices was collected to domestic indoor natural gas concentration is purchased on the market, as long as can reach and handle all can use methane.
The utility model discloses a monitoring devices is collected to domestic indoor natural gas concentration, above the mounting means, the connected mode or the mode that sets up of all parts are common mechanical system to the concrete structure, model and the coefficient index of its all parts are its from taking the technique, as long as can reach all can implement of its beneficial effect, so do not add at much and give unnecessary details.
The domestic indoor natural gas concentration collecting and monitoring device of the utility model has the advantages that under the condition that the contrary explanation is not made, the directional terms "up, down, left, right, front, back, inside, and outside, and vertical and horizontal" included in the term merely represent the orientation of the term in the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, 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 also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A household indoor natural gas concentration collecting and monitoring device comprises a box body (1), a transverse plate (2), a box door (3), a handle (4), a methane concentration sensor (5) and a partition plate (6), wherein four groups of supporting legs (7) are arranged at the bottom end of the box body (1), rollers (8) are rotatably arranged at the bottom ends of the four groups of supporting legs (7), a working cavity is arranged in the box body (1), the transverse plate (2) is transversely arranged in the upper half area in the working cavity, the partition plate (6) is divided into an upper cavity and a lower cavity by the transverse plate (2), a box opening is arranged in the upper half area of the front side wall of the box body (1), the box opening is communicated with the upper cavity, the left end of the box door (3) is connected with the left upper side of the front side wall of the box body (1) through a hinge, the rear end of the handle (4) is connected with the right half area of the front side wall, the detection end of the bottom of the methane concentration sensor (5) is positioned in the lower cavity, the partition plate (6) is longitudinally arranged in the right half area of the lower cavity, the central area of the left side wall of the partition plate (6) is transversely provided with an air vent, the lower half area of the left side wall of the box body (1) is transversely provided with a connecting hole, the connecting hole is provided with an induced draft fan (9), the lower half area of the right side wall of the box body (1) is provided with a cleaning port, the cleaning port is communicated with the lower cavity, a cover plate (10) is detachably arranged at the cleaning port, the cover plate (10) is communicated with an exhaust pipe (11), the left half area of the top end of the transverse plate (2) is provided with a control processing device (12), and the left half; the device is characterized by further comprising a water tank (14), a connecting pipe (15) and a middle pipe (16), wherein the bottom end of the water tank (14) is connected with the right half area of the top end of the transverse plate (2), a placing cavity is arranged inside the water tank (14), an opening is formed in the central area of the top end of the water tank (14), the opening is communicated with the placing cavity, a through hole is transversely formed in the central area of the right side wall of the water tank (14), a fixing hole is longitudinally formed in the right half area of the top end of the transverse plate (2), the input end of the connecting pipe (15) penetrates through the through hole and extends into the placing cavity, the outer side wall of the connecting pipe (15) is in sealed connection with the inner side wall of the through hole, the bottom output end of the connecting pipe (15) penetrates through the fixing hole and is connected with the top input end of, a control valve (18) and a water pump (19) are arranged on the connecting pipe (15), an observation hole is arranged on the right half area of the front side wall of the box door (3), and a transparent plate (20) is arranged at the observation hole.
2. The household indoor natural gas concentration collecting and monitoring device as claimed in claim 1, further comprising a left reinforcing rod (21) and a right reinforcing rod (22), wherein the top ends of the left reinforcing rod (21) and the right reinforcing rod (22) are connected with the right half area of the bottom end of the transverse plate (2), and the bottom ends of the left reinforcing rod (21) and the right reinforcing rod (22) are respectively connected with the left half area and the right half area of the top end of the middle pipe (16).
3. A domestic natural gas concentration collecting and monitoring device according to claim 2, further comprising a connecting rod (23) and a push rod (24), wherein the right end of said connecting rod (23) is connected with the upper half area of the left side wall of the box body (1), and the bottom end of said push rod (24) is connected with the left half area of the top end of said connecting rod (23).
4. A domestic natural gas concentration collecting and monitoring device as claimed in claim 3, further comprising a baffle plate (25), wherein the bottom end, front end and rear end of the baffle plate (25) are respectively connected with the inner bottom side wall, inner front side wall and inner rear side wall of the box body (1), and a certain gap is left between the top end of the baffle plate (25) and the bottom end of the transverse plate (2).
5. A domestic natural gas concentration collecting and monitoring device according to claim 4, wherein a drain pipe (26) is provided in communication with a lower half region of a front side wall of the water tank (14), and a check valve (27) is provided on the drain pipe (26).
6. A domestic natural gas concentration collection monitoring device according to claim 5, further comprising a stabilizing plate (28), said stabilizing plate (28) being mounted transversely between the four sets of legs (7).
7. A domestic natural gas concentration collecting and monitoring device according to claim 6, wherein a baffle (29) is detachably provided at the opening.
8. A domestic natural gas concentration collecting and monitoring device according to claim 7, wherein a sealing ring (30) is provided at the junction of the methane concentration sensor (5) and the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020827559.2U CN212255307U (en) | 2020-05-18 | 2020-05-18 | Domestic indoor natural gas concentration collecting and monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020827559.2U CN212255307U (en) | 2020-05-18 | 2020-05-18 | Domestic indoor natural gas concentration collecting and monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212255307U true CN212255307U (en) | 2020-12-29 |
Family
ID=74000871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020827559.2U Expired - Fee Related CN212255307U (en) | 2020-05-18 | 2020-05-18 | Domestic indoor natural gas concentration collecting and monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212255307U (en) |
-
2020
- 2020-05-18 CN CN202020827559.2U patent/CN212255307U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Granted publication date: 20201229 |