CN116087691A - Power grid line secondary circuit detection device and method - Google Patents
Power grid line secondary circuit detection device and method Download PDFInfo
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- CN116087691A CN116087691A CN202310373964.XA CN202310373964A CN116087691A CN 116087691 A CN116087691 A CN 116087691A CN 202310373964 A CN202310373964 A CN 202310373964A CN 116087691 A CN116087691 A CN 116087691A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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Abstract
The invention belongs to the technical field of power grid detection, in particular to a power grid line secondary circuit detection device and a method, comprising a lower shell, wherein a hand-operated structure is arranged in the lower shell, one side of the hand-operated structure is sequentially provided with a power generation structure and a timing structure, the other side of the hand-operated structure is provided with a protection structure, the timing structure is matched with the protection structure, the top end of the lower shell is provided with an upper shell, the surface of the upper shell is provided with an interaction structure, and one side of the interaction structure is provided with an integrated detection structure; the invention sets the hand-operated structure to cooperate with the protective structure, reserves the protective function for the detection socket group, and sets the timing structure to cooperate with the protective structure, so that when the detection socket group is detected or accidents occur, after the time is limited, the timing structure triggers the protective structure to enable the detection socket group to retract into the lower shell, and the connection with the external connector is disconnected, thereby facilitating the detection of staff or the rescue of the personnel with accidents.
Description
Technical Field
The invention belongs to the technical field of power grid detection, and particularly relates to a device and a method for detecting a secondary circuit of a power grid line.
Background
The Chinese patent with publication number CN115389788A discloses an AC/DC secondary circuit channeling detection device, wherein in a non-working state, a detection head is positioned in a shell so as to protect the detection head from damage, and when a DC bus needs to be detected, a driving piece pushes the detection head to extend out of a detection hole from the inside of the shell so as to be convenient for a worker to take;
however, the functions of the above patent are relatively single, so there is still room for improvement.
Therefore, it is necessary to provide a device and a method for detecting a secondary circuit of a power grid line to solve the above problems.
Disclosure of Invention
The invention provides a device and a method for detecting a secondary circuit of a power grid line, aiming at the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a power grid line secondary circuit detection device, includes the casing down, and the internally mounted of casing has hand structure down, and power generation structure and timing structure are installed in proper order to hand structure's one side, and protection architecture is installed to hand structure's opposite side, timing structure and protection architecture assorted, and the top of casing is installed down and is gone up the casing, and the surface mounting of going up the casing has interactive structure, and integrated detection structure is installed to one side of interactive structure.
Preferably, the hand-operated structure comprises a rocker, the middle part and one end of the rocker are fixedly connected with driving gears, the other end of the rocker is fixedly connected with a rocking handle, and one end of the rocking handle is slidably inserted out of one side of the lower shell.
Preferably, the driving gear positioned at the end part of the rocker is matched with the timing structure and the protection structure, and the driving gear positioned in the middle of the rocker is matched with the power generation structure.
Preferably, the power generation structure comprises a power generation driven gear, the power generation driven gear is meshed with the corresponding driving gear, a power generation driven gear is meshed with one side of the power generation driven gear, a power generator is fixedly connected with one end of the power generation driven gear, and a storage battery structure is fixedly arranged on one side of the power generator.
Preferably, the timing structure comprises a timing gear, the timing gear is meshed with the corresponding driving gear, one side of the timing gear is meshed with a timing slave gear, the outer side of the timing slave gear is covered with a mechanical timing device, and one side of the mechanical timing device is provided with a triggering structure.
Preferably, the timing structure further comprises a mounting plate and a winch, one side of the mounting plate is fixedly connected with a timing spring rod, one end of the telescopic end of the timing spring rod is fixedly connected with a clamping block, the other end of the telescopic end of the timing spring rod is fixedly connected with a pull rope, one end of the pull rope is sequentially inserted into the timing spring rod and the mounting plate, and the timing spring rod is fixedly connected with the triggering structure after winding the winch.
Preferably, the protection architecture is including protecting the movable gear, and the protection is moved the perpendicular meshing in one side of gear and is had the protection to follow the gear, and the protection is followed the one end fixedly connected with screw thread telescopic link structure of gear, and screw thread telescopic link structure's one end butt has the detection frame, and one side fixedly connected with of detection frame detects the socket group, detects the one end of casing under the one end interlude of socket group, and the middle part fixedly connected with reset spring pole of detection frame one side, the one end fixedly connected with lower shells inner wall one end of reset spring pole.
Preferably, one side of the detection socket group is meshed with a ratchet structure, one side of the bottom end of the ratchet structure is in sliding fit with an inclined sliding block, one end of the inclined sliding block is fixedly connected with a protection spring rod, the side of the other end of the inclined sliding block is matched with the clamping block, the other end of the inclined sliding block is fixedly connected with a pressing rod, and one end of the pressing rod is in sliding plug connection with the other side of the lower shell.
The use method of the power grid line secondary circuit detection device comprises the following steps:
s1: pulling the rocking handle to drive the rocking rod to move, enabling the driving gear in the middle of the rocking rod to be meshed with the power generation driving gear, then rocking the rocking handle, driving the power generation driven gear through the power generation driving gear, and further driving the power generator to generate power to supply energy for equipment;
s2: the rocking handle is pulled continuously to drive the rocking rod to move, so that a driving gear at the end part of the rocking rod is meshed with the protection movable gear, then the rocking handle is rocked, the protection movable gear drives the protection driven gear, and further the threaded telescopic rod structure is driven to extend, so that the detection socket group on the detection frame extends out of the lower shell, the detection socket group is convenient to plug with an external connector, and after the detection socket group reaches a specified position, the rocking handle is rotated reversely, so that the threaded telescopic rod structure is shortened and separated from the detection frame;
s3: when the external connector is spliced with the detection socket group, the operation is carried out through the interactive structure, the secondary circuit is detected, and the information is sent back to the interactive structure after being analyzed through the integrated detection structure;
s4: during the detection of the equipment, the rocking handle is pulled continuously to drive the rocking rod to move, so that the driving gear at the end part of the rocking rod is meshed with the timing gear, then the rocking handle is rocked, the timing driven gear is driven by the timing gear, and the mechanical timing device is driven to operate;
s5: after the set time is up, the triggering structure on the mechanical timing device is triggered, and at the moment, the triggering structure pulls the timing spring rod through the pull rope, so that the timing spring rod is contracted, and the clamping block is further separated from the other side of the inclined sliding block;
s6: at the moment, the protection spring rod pushes the inclined sliding block to move, so that the inclined sliding block is gradually far away from the ratchet wheel structure, the ratchet wheel structure moves downwards and is separated from the detection socket group, and the detection frame is pushed by the reset spring rod, so that the detection socket group is retracted into the lower shell, and the lower shell can protect the detection socket group.
The invention has the technical effects and advantages that:
the invention sets the hand-operated structure to cooperate with the protective structure, has kept the protective function to detecting the socket group, and set up the timing structure to cooperate with protective structure, make detect socket group after finishing detecting or when the accident happens, after limiting the time, the timing structure triggers the protective structure to make detect socket group retract the lower shell, disconnect with external joint, thus facilitate the staff to detect or help the personnel who have accident;
the invention also provides a power generation structure, further enriches the functions of the device, and can operate the power generation structure, the protection structure and the timing structure by adjusting the position of the hand-operated structure, so that the operation is simple and quick.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the upper housing of the present invention;
FIG. 3 is a schematic view of the internal structure of the lower housing of the present invention;
FIG. 4 is a schematic view of the power generation structure of the present invention;
FIG. 5 is a schematic timing structure of the present invention;
fig. 6 is a schematic view of the structure of the threaded telescopic rod of the present invention.
In the figure: 1. a lower housing; 2. a hand-operated structure; 201. a rocker; 202. a drive gear; 203. a rocking handle; 3. a power generation structure; 301. a power generation driven gear; 302. generating power from the gear; 303. a generator; 304. a battery structure; 4. a timing structure; 401. a timing gear; 402. timing the slave gear; 403. a mechanical timing device; 404. a winch; 405. a timing spring rod; 406. a clamping block; 407. a pull rope; 5. a protective structure; 501. protecting the movable gear; 502. protecting the slave gear; 503. a threaded telescopic rod structure; 504. a detection frame; 505. detecting a socket group; 506. a reset spring lever; 507. a ratchet structure; 508. an inclined slide block; 509. a protective spring rod; 510. pressing a pressing rod; 6. an upper housing; 7. an interactive structure; 8. and integrating the detection structure.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, based on the embodiments of the invention, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the invention;
in the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, in the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The invention provides a power grid line secondary circuit detection device as shown in figures 1 to 6, which comprises a lower shell 1, wherein a hand-operated structure 2 is arranged in the lower shell 1, a power generation structure 3 and a timing structure 4 are sequentially arranged on one side of the hand-operated structure 2, a protection structure 5 is arranged on the other side of the hand-operated structure 2, the timing structure 4 is matched with the protection structure 5, an upper shell 6 is arranged at the top end of the lower shell 1, an interaction structure 7 is arranged on the surface of the upper shell 6, and an integrated detection structure 8 is arranged on one side of the interaction structure 7.
The invention sets the hand-operated structure 2 to cooperate with the protective structure 5, which reserves the protective function of the detection socket set 505, and sets the timing structure 4 to cooperate with the protective structure 5, so that when the detection socket set 505 is detected or accidents occur, after the limiting time, the timing structure 4 triggers the protective structure 5 to retract the detection socket set 505 into the lower shell 1, and the connection with the external connector is disconnected, thereby facilitating the detection of the staff or the rescue of the accident personnel, and the invention also sets the power generation structure 3, which further enriches the functions of the device, and can operate the power generation structure 3, the protective structure 5 and the timing structure 4 by adjusting the position of the hand-operated structure 2, so that the operation is simple and quick.
Referring to fig. 1, 3 and 4 of the specification, the hand shaking structure 2 comprises a rocker 201, a driving gear 202 is fixedly connected to the middle part and one end of the rocker 201, a rocking handle 203 is fixedly connected to the other end of the rocker 201, one end of the rocking handle 203 is slidably inserted out of one side of the lower shell 1, the driving gear 202 at the end of the rocker 201 is matched with the timing structure 4 and the protection structure 5, and the driving gear 202 at the middle part of the rocker 201 is matched with the power generation structure 3.
When the invention is arranged in the hand-operated structure 2, the rocking bar 201 is pulled by the rocking handle 203, so that the corresponding driving gear 202 is meshed in sequence according to the power generation structure 3, the protection structure 5 and the timing structure 4.
Referring to fig. 3 to 4 of the specification, the power generation structure 3 includes a power generation gear 301, the power generation gear 301 is meshed with the corresponding driving gear 202, a power generation driven gear 302 is meshed with one side of the power generation gear 301, a power generator 303 is fixedly connected to one end of the power generation driven gear 302, and a storage battery structure 304 is fixedly arranged on one side of the power generator 303.
Referring to fig. 3 to 5 of the specification, the timing structure 4 includes a timing gear 401, the timing gear 401 is meshed with the corresponding driving gear 202, one side of the timing gear 401 is meshed with a timing driven gear 402, a mechanical timing device 403 is covered on the outer side of the timing driven gear 402, a trigger structure is arranged on one side of the mechanical timing device 403, the timing structure 4 further includes a mounting plate and a winch 404, a timing spring rod 405 is fixedly connected to one side of the mounting plate, a clamping block 406 is fixedly connected to one end of a telescopic end of the timing spring rod 405, a pull rope 407 is fixedly connected to the other end of the telescopic end of the timing spring rod 405, one end of the pull rope 407 is sequentially inserted into the timing spring rod 405 and the mounting plate, and the timing spring rod is fixedly connected with the trigger structure after winding the winch 404.
Referring to fig. 3 to 6 of the specification, the protection structure 5 includes a protection movable gear 501, one side of the protection movable gear 501 is vertically engaged with a protection slave gear 502, one end of the protection slave gear 502 is fixedly connected with a threaded telescopic rod structure 503, one end of the threaded telescopic rod structure 503 is abutted to a detection frame 504, one side of the detection frame 504 is fixedly connected with a detection socket group 505, one end of the detection socket group 505 is inserted into one end of the lower housing 1, a middle part of one side of the detection frame 504 is fixedly connected with a reset spring rod 506, one end of the reset spring rod 506 is fixedly connected with one end of the inner wall of the lower housing 1, one side of the detection socket group 505 is engaged with a ratchet structure 507, a ratchet spring rod is mounted at the top end of the ratchet structure 507 for providing power for downward movement of the ratchet structure 507, one side of the bottom end of the ratchet structure 507 is slidingly attached with an inclined slide block 508, one end of the inclined slide block 508 is fixedly connected with a protection spring rod 509, the other side of the other end of the inclined slide block 508 is matched with a clamping block 406, the other end of the inclined slide block 508 is fixedly connected with a pressing rod 510, and one end of the pressing rod 510 is slidingly inserted out of the other side of the lower housing 1.
The use method of the power grid line secondary circuit detection device comprises the following steps:
s1: pulling the rocking handle 203 to drive the rocking rod 201 to move, enabling the driving gear 202 in the middle of the rocking rod 201 to be meshed with the power generation driven gear 301, then rocking the rocking handle 203, driving the power generation driven gear 302 through the power generation driven gear 301, and further driving the power generator 303 to generate power to supply power to equipment;
s2: the rocking handle 203 is pulled continuously to drive the rocking rod 201 to move, so that a driving gear 202 at the end part of the rocking rod 201 is meshed with a protection movable gear 501, then the rocking handle 203 is rocked, the protection movable gear 501 drives a protection driven gear 502, and further drives a threaded telescopic rod structure 503 to stretch, so that a detection socket group 505 on a detection frame 504 stretches out of the lower shell 1 to be convenient to plug with an external connector, after the detection socket group 505 reaches a specified position, the rocking handle 203 is rotated reversely, so that the threaded telescopic rod structure 503 is shortened, and is separated from the detection frame 504 and separated from the detection frame 504;
s3: when the external connector is spliced with the detection socket group 505, the interaction structure 7 is used for operation, the secondary circuit is detected, and information is analyzed by the integrated detection structure 8 and then sent back to the interaction structure 7;
s4: during the detection of the equipment, the rocking handle 203 is pulled continuously to drive the rocking rod 201 to move, so that the driving gear 202 at the end part of the rocking rod 201 is meshed with the timing gear 401, then the rocking handle 203 is rocked, the timing slave gear 402 is driven by the timing gear 401, and the mechanical timing device 403 is driven to operate;
s5: after the set time is reached, the triggering structure on the mechanical timing device 403 is triggered, and at the moment, the triggering structure pulls the timing spring rod 405 through the pull rope 407, so that the timing spring rod 405 is contracted, and the clamping block 406 is separated from the other side of the inclined sliding block 508;
s6: at this time, the protection spring rod 509 pushes the inclined slider 508 to move, so that the inclined slider 508 gradually moves away from the ratchet structure 507, and then the ratchet structure 507 moves downward to separate from the detection jack set 505, and then the detection rack 504 is pushed by the reset spring rod 506, so that the detection jack set 505 is retracted into the lower housing 1, and the lower housing 1 can protect the detection jack set 505.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a power grid line secondary circuit detection device, includes casing (1), its characterized in that: the inside of the lower shell (1) is provided with a hand-operated structure (2), one side of the hand-operated structure (2) is provided with a power generation structure (3) and a timing structure (4) in sequence, the other side of the hand-operated structure (2) is provided with a protection structure (5), the timing structure (4) is matched with the protection structure (5), an upper shell (6) is arranged at the top end of the lower shell (1), an interaction structure (7) is arranged on the surface of the upper shell (6), and an integrated detection structure (8) is arranged on one side of the interaction structure (7).
2. The grid line secondary loop detection device according to claim 1, wherein: the hand shaking structure (2) comprises a rocker (201), the middle part and one end of the rocker (201) are fixedly connected with a driving gear (202), the other end of the rocker (201) is fixedly connected with a rocking handle (203), and one end of the rocking handle (203) is slidably inserted out of one side of the lower shell (1).
3. The grid line secondary loop detection device according to claim 2, wherein: the driving gear (202) positioned at the end part of the rocker (201) is matched with the timing structure (4) and the protection structure (5), and the driving gear (202) positioned in the middle part of the rocker (201) is matched with the power generation structure (3).
4. A grid line secondary loop detection apparatus as defined in claim 3, wherein: the power generation structure (3) comprises a power generation driven gear (301), the power generation driven gear (301) is meshed with a corresponding driving gear (202), a power generation driven gear (302) is meshed with one side of the power generation driven gear (301), a power generator (303) is fixedly connected to one end of the power generation driven gear (302), and a storage battery structure (304) is fixedly arranged on one side of the power generator (303).
5. The grid line secondary loop detection device of claim 4, wherein: the timing structure (4) comprises a timing gear (401), the timing gear (401) is meshed with a corresponding driving gear (202), a timing driven gear (402) is meshed with one side of the timing gear (401), a mechanical timing device (403) is covered on the outer side of the timing driven gear (402), and a triggering structure is arranged on one side of the mechanical timing device (403).
6. The grid line secondary loop detection device of claim 5, wherein: the timing structure (4) further comprises a mounting plate and a winch (404), one side of the mounting plate is fixedly connected with a timing spring rod (405), one end of the upper telescopic end of the timing spring rod (405) is fixedly connected with a clamping block (406), the other end of the upper telescopic end of the timing spring rod (405) is fixedly connected with a pull rope (407), one end of the pull rope (407) is sequentially inserted into the timing spring rod (405) and the mounting plate, and the timing spring rod is fixedly connected with the triggering structure after winding the winch (404).
7. The grid line secondary loop detection device of claim 6, wherein: protection architecture (5) are including protecting and move gear (501), the one side perpendicular meshing that protects and move gear (501) has protection to follow gear (502), the one end fixedly connected with screw thread telescopic link structure (503) that protects from gear (502), the one end butt of screw thread telescopic link structure (503) has detection frame (504), one side fixedly connected with of detection frame (504) detects socket group (505), the one end of casing (1) under the one end interlude of detection socket group (505), the middle part fixedly connected with reset spring rod (506) of detection frame (504) one side, the one end fixedly connected with casing (1) inner wall one end down of reset spring rod (506).
8. The grid line secondary loop detection device of claim 7, wherein: one side meshing of detection socket group (505) has ratchet (507), one side slip laminating of the bottom of ratchet (507) has oblique slider (508), the one end fixedly connected with protection spring rod (509) of oblique slider (508), the avris of the oblique slider (508) other end and fixture block (406) assorted, the other end fixedly connected with of oblique slider (508) presses pole (510), the one end slip grafting of pressing pole (510) goes out the another side of lower casing (1).
9. A method of using a grid line secondary loop detection apparatus as defined in any one of claims 1 to 8, the method comprising the steps of:
s1: pulling the rocking handle (203) to drive the rocking rod (201) to move, enabling a driving gear (202) in the middle of the rocking rod (201) to be meshed with a power generation driving gear (301), then rocking the rocking handle (203), driving a power generation driven gear (302) through the power generation driving gear (301), and further driving a generator (303) to generate power to supply power to equipment;
s2: the rocking handle (203) is pulled continuously to drive the rocking rod (201) to move, so that a driving gear (202) at the end part of the rocking rod (201) is meshed with a protection driven gear (501), then the rocking handle (203) is rocked, the protection driven gear (502) is driven by the protection driven gear (501), and then the threaded telescopic rod structure (503) is driven to stretch, so that a detection jack group (505) on a detection frame (504) stretches out of the lower shell (1) to be conveniently spliced with an external connector, and after the detection jack group (505) reaches a specified position, the rocking handle (203) is rotated reversely, so that the threaded telescopic rod structure (503) is shortened and separated from the detection frame (504);
s3: when the external connector is spliced with the detection socket group (505), the interaction structure (7) is used for operating, the secondary circuit is detected, and information is analyzed by the integrated detection structure (8) and then sent back to the interaction structure (7);
s4: during the detection of the equipment, the rocking handle (203) is pulled continuously to drive the rocking rod (201) to move, so that the driving gear (202) at the end part of the rocking rod (201) is meshed with the timing gear (401), and then the rocking handle (203) is rocked, the timing slave gear (402) is driven by the timing gear (401), and the mechanical timing device (403) is driven to operate;
s5: after the set time is up, a trigger structure on the mechanical timing device (403) is triggered, and at the moment, the trigger structure pulls the timing spring rod (405) through the pull rope (407), so that the timing spring rod (405) is contracted, and then the clamping block (406) is separated from the other side of the inclined sliding block (508);
s6: at the moment, the protection spring rod (509) pushes the inclined sliding block (508) to move, so that the inclined sliding block (508) is gradually far away from the ratchet wheel structure (507), the ratchet wheel structure (507) moves downwards and is separated from the detection socket group (505), and the detection rack (504) is pushed by the reset spring rod (506) to enable the detection socket group (505) to retract into the lower shell (1), and the lower shell (1) can protect the detection socket group (505).
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| CN202310373964.XA CN116087691B (en) | 2023-04-10 | 2023-04-10 | Power grid line secondary circuit detection device and method |
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| CN202310373964.XA CN116087691B (en) | 2023-04-10 | 2023-04-10 | Power grid line secondary circuit detection device and method |
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| CN209927838U (en) * | 2019-04-17 | 2020-01-10 | 成都科控环境工程有限公司 | Telescopic pH meter for sewage detection |
| DE202020100206U1 (en) * | 2020-01-16 | 2021-04-19 | Battenberg Robotic Gmbh & Co. Kg | Ultrasonic probe assembly |
| CN112964924A (en) * | 2021-04-28 | 2021-06-15 | 伟宸科技（武汉）有限公司 | Protection device of charged detection equipment |
| CN215339808U (en) * | 2021-05-28 | 2021-12-28 | 福建志立明德智能科技有限公司 | Sewage timing monitoring device based on environmental protection |
| CN217278692U (en) * | 2022-01-24 | 2022-08-23 | 孟凡庭 | Electromechanical device installs and uses electric check out test set |
| CN217954389U (en) * | 2022-06-29 | 2022-12-02 | 北京中安锐盾科技发展有限公司 | Portable multi-parameter gas measuring device |
| CN115389788A (en) * | 2022-07-15 | 2022-11-25 | 云南电网有限责任公司昆明供电局 | Detection device is gone into in alternating current-direct current secondary circuit |
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