CN219245648U - Direct-current high-precision measuring device - Google Patents
Direct-current high-precision measuring device Download PDFInfo
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- CN219245648U CN219245648U CN202222159338.4U CN202222159338U CN219245648U CN 219245648 U CN219245648 U CN 219245648U CN 202222159338 U CN202222159338 U CN 202222159338U CN 219245648 U CN219245648 U CN 219245648U
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Abstract
The utility model discloses a direct-current high-precision measuring device, which comprises a box body, wherein a lifting mechanism is arranged in the middle end of the box body, and fastening mechanisms are symmetrically arranged at the left end and the right end of the lifting mechanism; the lifting mechanism comprises a double semicircular gear, a power rod, a double opening cover plate, an auxiliary rod, a short rod, a pull rod and a tray, wherein the front end and the rear end of the box body are respectively and rotationally connected with the double semicircular gear, the left end and the right end of the double semicircular gear are respectively and fixedly connected with the power rod, the upper end of the power rod is rotationally connected with the double opening cover plate, the front end and the rear end of the double opening cover plate are respectively and rotationally connected with the auxiliary rod, the direct-current high-precision measuring instrument is placed on the upper end face of a slope clamping plate when in use, and then the direct-current high-precision measuring instrument is pressed downwards, so that the direct-current high-precision measuring instrument extrudes the slope clamping plate to move towards two sides, and meanwhile, the slope clamping plate pushes the power spring rod to slide towards two sides in the positioning plate and extrudes a spring arranged on the outer surface of the power spring rod.
Description
Technical Field
The utility model relates to the field of direct-current heavy-current measurement, in particular to a direct-current heavy-current high-precision measurement device.
Background
When the existing direct-current high-precision measuring instrument detects direct current, the wiring and the starting of a power switch are usually required to be manually carried out, when the direct-current high-precision measuring instrument is used for a long time and is not damaged in time, leakage is easy to occur, an operator is easy to get an electric shock, a connecting wire of the direct-current high-precision measuring instrument cannot be automatically inserted into the direct-current high-precision measuring instrument when the direct-current high-precision measuring instrument is used, and the direct-current high-precision measuring instrument cannot be automatically powered, so that the operation is complicated, the safety is low, and the direct-current high-precision measuring instrument is used for checking under the environment with a strong partial magnetic field.
Disclosure of Invention
In order to solve the technical problems, the technical scheme provides a direct-current high-precision measuring device, when the existing direct-current high-precision measuring device is used for detecting direct current, the direct-current high-precision measuring device is usually required to be manually connected and started, when the direct-current high-precision measuring device is used for a long time and is not damaged in time, leakage is easy to occur, an operator is easy to get an electric shock, a connecting wire of the direct-current high-precision measuring device cannot be automatically inserted into the direct-current high-precision measuring device and the direct-current high-precision measuring device cannot be automatically supplied with power when the direct-current high-precision measuring device is used, the operation is complicated, the safety is low, and when the direct-current high-precision measuring device is used for detecting under the environment with a strong partial magnetic field, errors are easily generated in the detection result due to the fact that the magnetic field cannot be automatically moved into a shielding box body when the direct-current high-precision measuring device is detected, and the detection errors are large and the detection is inaccurate.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the direct-current high-precision measuring device comprises a box body, wherein a lifting mechanism is arranged in the middle end of the box body, and fastening mechanisms are symmetrically arranged at the left end and the right end of the lifting mechanism;
the lifting mechanism comprises a double-son semicircular gear, a power rod, a double-opening cover plate, auxiliary rods, short rods, a pull rod and a tray, wherein the front end and the rear end of the box body are respectively and rotationally connected with the double-son semicircular gear, the left end and the right end of the double-son semicircular gear are respectively and fixedly connected with the power rod, the upper end of the power rod is rotationally connected with the double-opening cover plate, the front end and the rear end of the double-opening cover plate are respectively and rotationally connected with the auxiliary rods, the lower end of each auxiliary rod is rotationally connected with the outer surfaces of the left end and the right end of the box body, the left end and the right end of each double-son semicircular gear are respectively and fixedly connected with the short rods, the upper end of each short rod is rotationally connected with the pull rod, and the upper end of each pull rod is rotationally connected with the tray.
Preferably, the tray is fixedly connected with locating plates at the left end and the right end, power spring rods are slidably connected at the front end and the rear end of the locating plates, and slope clamping plates are fixedly connected at one ends of the power spring rods.
Preferably, the fastening mechanism comprises a bending spring rod, an opening plate, double bullet spring rods, a wiring board and a positioning extrusion plate, wherein the positioning extrusion plate is fixedly connected to the front end and the rear end of the box body, the bending spring rod is fixedly connected to the middle end of the positioning extrusion plate in a sliding manner, the opening plate is fixedly connected to one end of the bending spring rod, the double bullet spring rods are fixedly connected to the upper end face of the opening plate, and the wiring board is fixedly connected to the outer surface of the upper end of the double bullet spring rods in a sliding manner.
Preferably, both ends all fixedly connected with torsional spring board around the opening plate, torsional spring board middle-end rotation is connected with two-way rope winding post, two-way rope winding post left and right sides both ends surface winding has the connecting wire, connecting wire electric connection is in the wiring board, two-way rope winding post middle-end surface winding has pulls the rope, pull rope one end fixed connection in the terminal surface under the wiring board.
Preferably, the terminal plate up end fixedly connected with push rod, push rod one end all is provided with the push pedal, push pedal fixedly connected with is two ends about the double-deck board.
Compared with the prior art, the utility model has the beneficial effects that:
(1) When the direct-current high-precision measuring instrument is used, the direct-current high-precision measuring instrument is placed on the upper end face of the slope clamping plate, then the direct-current high-precision measuring instrument is pressed downwards, so that the direct-current high-precision measuring instrument extrudes the slope clamping plate to move towards two sides, meanwhile, the slope clamping plate pushes the power spring rod to slide towards two sides in the positioning plate and extrudes the spring arranged on the outer surface of the power spring rod, and when extrusion is finished, the slope clamping plate is pushed to move towards the middle by the spring arranged on the outer surface of the power spring rod, so that the direct-current high-precision measuring instrument is clamped and fixed, the instability of directly placing the direct-current high-precision measuring instrument on the tray is avoided, and meanwhile, the situation that the direct-current high-precision measuring instrument cannot be taken out timely in emergency is avoided;
(2) After the direct-current high-precision measuring instrument is placed, any end of the double cover plates is pushed to move towards the middle, the upper ends of the power rods are driven to synchronously move by the double cover plates, the lower ends of the power rods drive semicircular gears arranged on one side of the double semicircular gears to rotate, meanwhile, the semicircular gears drive semicircular gears on the other side to rotate towards the middle, at the same time, the double cover plates are driven by the power rods on the other side to move towards the middle, the double semicircular gears drive the short rods to rotate, the short rods pull the tray to move downwards in the box body through the pull rods, the tray is also completely moved into the box body when the double cover plates are completely closed, meanwhile, plugs arranged at the bottoms of the tray are inserted into sockets arranged in the box body, at the moment, the direct-current high-precision measuring instrument is subjected to power supply test, the unsafe of manually and manually removing a joint power supply is avoided, and meanwhile, the direct-current high-precision measuring instrument is sealed in the box body for use, and the accuracy of the direct-current high-precision measuring instrument is greatly reduced, and the accuracy of the detection of the direct-current high-precision measuring instrument is greatly disturbed by an external magnetic field.
(3) When two uncapping boards move to half, two uncapping boards pass through the push pedal and promote the push rod, the two uncapping boards continue to remove to the centre this moment, and drive the wiring board through the push rod, the opening board moves to the box direction, when two uncapping boards do not close completely, the opening board is also sealed with box both sides opening part simultaneously, the wiring board is in direct current high accuracy measuring apparatu wiring mouth top this moment, then pull the connecting wire access product that needs to detect, when pulling the connecting wire, the connecting wire drives two-way rope winding post and rotates, and the torsional spring synchronous rotation that the torsion spring board inside was equipped with is upward, carry out the rolling when two-way rope winding post is rotatory and draw the rope, draw the rope and draw the wiring board and slide downwards in two bullet spring pole surface department, when sliding downwards, the joint that is equipped with on the wiring board inserts in direct current high accuracy measuring apparatu upper interface department, and then effectually last for the wiring board a force connection in direct current high accuracy measuring apparatu interface department, the condition emergence with direct current high accuracy measuring apparatu emergence when having avoided when using, the condition emergence with direct current high accuracy measuring apparatu takes place, the condition that leads to the inaccurate emergence of detection data.
Drawings
FIG. 1 is a schematic diagram of a main body perspective mechanism of the present utility model;
FIG. 2 is a schematic view of a bottom perspective of the main body of the present utility model;
FIG. 3 is a schematic view of a bottom perspective of the fastening mechanism of the present utility model;
FIG. 4 is a schematic front perspective view of the fastening mechanism of the present utility model;
FIG. 5 is an enlarged partial view of portion A of FIG. 1;
fig. 6 is a partial enlarged view of a portion B in fig. 1.
The reference numerals in the figures are: 1. a case; 2. a lifting mechanism; 201. a double-son semicircular gear; 202. a power lever; 203. a double-opening cover plate; 204. an auxiliary lever; 205. a short bar; 206. a pull rod; 207. a tray; 208. a positioning plate; 209. a power spring rod; 210. a ramp clamp plate;
3. a fastening mechanism; 301. bending the spring rod; 302. an opening plate; 303. double bullet spring rods; 304. a wiring board; 305. positioning the extrusion plate; 306. torsion spring plates; 307. a bidirectional rope winding column; 308. a connecting wire; 309. pulling the rope; 310. a push rod; 311. a push plate.
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.
Example 1
Referring to fig. 1 to 5, a direct current high-precision measuring device comprises a box body 1, wherein a lifting mechanism 2 is arranged in the middle end of the box body 1, and fastening mechanisms 3 are symmetrically arranged at the left end and the right end of the lifting mechanism 2; the lifting mechanism 2 comprises a double semicircular gear 201, a power rod 202, a double opening cover plate 203, an auxiliary rod 204, a short rod 205, a pull rod 206 and a tray 207, wherein the front end and the rear end of the box body 1 are respectively and rotationally connected with the double semicircular gear 201, the left end and the right end of the double semicircular gear 201 are respectively and fixedly connected with the power rod 202, the upper end of the power rod 202 is rotationally connected with the double opening cover plate 203, the front end and the rear end of the double opening cover plate 203 are respectively and rotationally connected with the auxiliary rod 204, the lower end of the auxiliary rod 204 is rotationally connected with the outer surfaces of the left end and the right end of the box body 1, the left end and the right end of the double semicircular gear 201 are respectively and fixedly connected with the short rod 205, the upper end of the short rod 205 is rotationally connected with the pull rod 206, the upper end of the pull rod 206 is rotationally connected with the tray 207, the left end and the right end of the tray 207 are respectively and fixedly connected with a positioning plate 208, the front end and the rear end of the positioning plate 208 are respectively and the front end and the rear end of the power spring 209 are respectively and fixedly connected with a slope clamping plate 210.
Working principle: when the direct-current high-precision measuring instrument is used, the direct-current high-precision measuring instrument is placed on the upper end face of the slope clamping plate 210, then the direct-current high-precision measuring instrument is pressed downwards, so that the direct-current high-precision measuring instrument extrudes the slope clamping plate 210 to move towards two sides, meanwhile, the slope clamping plate 210 pushes the power spring rod 209 to slide towards two sides in the positioning plate 208 and extrudes a spring arranged on the outer surface of the power spring rod 209, and when extrusion is finished, the slope clamping plate 210 is pushed to move towards the middle through the spring arranged on the outer surface of the power spring rod 209, so that the direct-current high-precision measuring instrument is clamped and fixed, the instability of directly placing the direct-current high-precision measuring instrument on the tray 207 is avoided, and meanwhile, the situation that the direct-current high-precision measuring instrument cannot be taken out timely in an emergency is avoided;
after the direct-current high-precision measuring instrument is placed, any one end of the double-opening cover plate 203 is pushed to move towards the middle, the upper end of the double-opening cover plate 203 drives the power rod 202 to synchronously move, the lower end of the power rod 202 drives the semicircular gear arranged on one side of the double-sub semicircular gear 201 to rotate, meanwhile, the semicircular gear drives the semicircular gear on the other side to rotate towards the middle, the double-sub semicircular gear 201 drives the short rod 205 to rotate when the double-sub semicircular gear 201 rotates, the short rod 205 pulls the tray 207 to move downwards in the box 1 through the pull rod 206, the plug arranged at the bottom of the tray 207 is inserted into the socket arranged in the box 1, the direct-current high-precision measuring instrument is subjected to power supply test, the unsafe of a manual joint removing power supply is avoided, and meanwhile, the direct-current high-precision measuring instrument is sealed in the box 1, and the accuracy of the direct-current high-precision measuring instrument is greatly reduced.
Example two
Referring to fig. 1 to fig. 4 and fig. 6, the fastening mechanism 3 includes a bending spring rod 301, an opening plate 302, a double bullet spring rod 303, a wiring board 304, and a positioning extrusion plate 305, wherein the front end and the rear end of the box 1 are fixedly connected with the positioning extrusion plate 305, the middle end of the positioning extrusion plate 305 is fixedly connected with the bending spring rod 301, one end of the bending spring rod 301 is fixedly connected with the opening plate 302, the upper end surface of the opening plate 302 is fixedly connected with the double bullet spring rod 303, the outer surface of the upper end of the double bullet spring rod 303 is fixedly connected with the wiring board 304, the front end and the rear end of the opening plate 302 are fixedly connected with a torsion spring plate 306, the middle end of the torsion spring plate 306 is rotatably connected with a bidirectional winding rope column 307, the left end and the right end surfaces of the bidirectional winding rope column 307 are wound with a connecting wire 308, the connecting wire 308 is electrically connected with the wiring board 304, the middle end surface of the bidirectional winding rope 309 is fixedly connected with the lower end surface of the wiring board 304, the upper end of the wiring board 304 is fixedly connected with a push rod 310, one end of the push rod 310 is provided with a push plate 311, and the push plate 311 is fixedly connected with the left end and the right end of the double opening plate 203.
Working principle: when the double-cover plate 203 moves to a half, the double-cover plate 203 pushes the push rod 310 through the push plate 311, at this time, the double-cover plate 203 continues to move to the middle, and drives the wiring board 304 and the opening board 302 to move to the box 1 direction through the push rod 310, when the double-cover plate 203 is not completely closed, the opening board 302 also seals the openings on two sides of the box 1, at this time, the wiring board 304 is positioned above the wiring port of the direct-current high-precision measuring instrument, then the connecting wire 308 is pulled to be connected with a product to be detected, when the connecting wire 308 is pulled, the connecting wire 308 drives the bidirectional winding column 307 to rotate, and drives the torsion spring arranged inside the torsion spring plate 306 to synchronously rotate upwards, at this time, the bidirectional winding column 307 winds and pulls the rope 309, and pulls the wiring board 304 to slide downwards at the outer surface of the double-bullet spring rod 303, and when the downward sliding, the connector arranged on the wiring board 304 is inserted into the interface of the direct-current high-precision measuring instrument, so that the effective continuous force connection of the wiring board 304 is arranged at the interface of the direct-current high-precision measuring instrument, thereby avoiding the situation that the connecting wire 308 and the high-precision measuring instrument drop off in use, and the situation of the high-precision measuring instrument occurs, and the occurrence of the detection data is avoided.
Example III
Referring to fig. 1 to 6, a direct current high-precision measuring device comprises a box body 1, wherein a lifting mechanism 2 is arranged in the middle end of the box body 1, and fastening mechanisms 3 are symmetrically arranged at the left end and the right end of the lifting mechanism 2; the lifting mechanism 2 comprises a double semicircular gear 201, a power rod 202, a double opening cover plate 203, an auxiliary rod 204, a short rod 205, a pull rod 206 and a tray 207, wherein the front end and the rear end of the box body 1 are respectively and rotationally connected with the double semicircular gear 201, the left end and the right end of the double semicircular gear 201 are respectively and fixedly connected with the power rod 202, the upper end of the power rod 202 is rotationally connected with the double opening cover plate 203, the front end and the rear end of the double opening cover plate 203 are respectively and rotationally connected with the auxiliary rod 204, the lower end of the auxiliary rod 204 is rotationally connected with the outer surfaces of the left end and the right end of the box body 1, the left end and the right end of the double semicircular gear 201 are respectively and fixedly connected with the short rod 205, the upper end of the short rod 205 is rotationally connected with the pull rod 206, the upper end of the pull rod 206 is rotationally connected with the tray 207, the left end and the right end of the tray 207 are respectively and fixedly connected with a positioning plate 208, the front end and the rear end of the positioning plate 208 are respectively and the front end and the rear end of the positioning plate are respectively and fixedly connected with a power spring rod 209, one end of the power spring 209 is respectively and fixedly connected with a slope clamping plate 210, the fastening mechanism 3 comprises a bending spring rod 301, an opening plate 302, a double bullet spring rod 303, a wiring board 304 and a positioning extrusion plate 305, wherein the positioning extrusion plate 305 is fixedly connected at the front end and the rear end of the box body 1, the middle end of the positioning extrusion plate 305 is slidably connected with the bending spring rod 301, one end of the bending spring rod 301 is fixedly connected with the opening plate 302, the upper end surface of the opening plate 302 is fixedly connected with the double bullet spring rod 303, the outer surface of the upper end of the double bullet spring rod 303 is slidably connected with the wiring board 304, the front end and the rear end of the opening plate 302 are fixedly connected with a torsion spring plate 306, the middle end of the torsion spring plate 306 is rotatably connected with a bidirectional winding rope column 307, the outer surfaces of the left end and the right end of the bidirectional winding rope column 307 are wound with connecting wires 308, the connecting wires 308 are electrically connected with the wiring board 304, the outer surface of the middle end of the bidirectional winding rope column 307 is wound with a pulling rope 309, one end of the pulling rope 309 is fixedly connected with the lower end surface of the wiring board 304, the upper end of the wiring board 304 is fixedly connected with a push rod 310, push rod 310 one end all is provided with push pedal 311, and push pedal 311 fixed connection is in two apron 203 both ends about opening.
Working principle: when the direct-current high-precision measuring instrument is used, the direct-current high-precision measuring instrument is placed on the upper end face of the slope clamping plate 210, then the direct-current high-precision measuring instrument is pressed downwards, so that the direct-current high-precision measuring instrument extrudes the slope clamping plate 210 to move towards two sides, meanwhile, the slope clamping plate 210 pushes the power spring rod 209 to slide towards two sides in the positioning plate 208 and extrudes a spring arranged on the outer surface of the power spring rod 209, and when extrusion is finished, the slope clamping plate 210 is pushed to move towards the middle through the spring arranged on the outer surface of the power spring rod 209, so that the direct-current high-precision measuring instrument is clamped and fixed, the instability of directly placing the direct-current high-precision measuring instrument on the tray 207 is avoided, and meanwhile, the situation that the direct-current high-precision measuring instrument cannot be taken out timely in an emergency is avoided;
when the double-cover plate 203 moves to a half, the double-cover plate 203 pushes the push rod 310 through the push plate 311, at the moment, the double-cover plate 203 continuously moves to the middle, and drives the wiring board 304 and the opening board 302 to move to the box body 1 through the push rod 310, when the double-cover plate 203 is not completely closed, the opening board 302 also seals the openings at two sides of the box body 1, at the moment, the wiring board 304 is positioned above the wiring port of the direct-current high-precision measuring instrument, then the connecting wire 308 is pulled to be connected with a product to be detected, when the connecting wire 308 is pulled, the connecting wire 308 drives the bidirectional winding column 307 to rotate, and drives the torsion spring arranged in the torsion spring plate 306 to synchronously rotate upwards, at the moment, the bidirectional winding column 307 rotates and simultaneously winds up the pulling rope 309, and pulls the wiring board 304 to slide downwards at the outer surface of the double-bullet spring rod 303, and when the pulling rope 309 slides downwards, a connector arranged on the wiring board 304 is inserted into the upper interface of the direct-current high-precision measuring instrument, so that the connector of the direct-current high-precision measuring instrument is effectively and continuously connected with the wiring board 304 at the upper interface of the direct-current high-precision measuring instrument, thus the situation that the high-precision measuring instrument of the connecting wire 308 and the direct-current high-precision measuring instrument drops is avoided when in use, and the situation occurs, and the situation that the data is not accurately detected;
after the direct-current high-precision measuring instrument is placed, any one end of the double-opening cover plate 203 is pushed to move towards the middle, the upper end of the double-opening cover plate 203 drives the power rod 202 to synchronously move, the lower end of the power rod 202 drives the semicircular gear arranged on one side of the double-sub semicircular gear 201 to rotate, meanwhile, the semicircular gear drives the semicircular gear on the other side to rotate towards the middle, the double-sub semicircular gear 201 drives the short rod 205 to rotate when the double-sub semicircular gear 201 rotates, the short rod 205 pulls the tray 207 to move downwards in the box 1 through the pull rod 206, the plug arranged at the bottom of the tray 207 is inserted into the socket arranged in the box 1, the direct-current high-precision measuring instrument is subjected to power supply test, the unsafe of a manual joint removing power supply is avoided, and meanwhile, the direct-current high-precision measuring instrument is sealed in the box 1, and the accuracy of the direct-current high-precision measuring instrument is greatly reduced.
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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a direct current heavy current high accuracy measuring device, includes box (1), its characterized in that: a lifting mechanism (2) is arranged in the middle end of the box body (1), and fastening mechanisms (3) are symmetrically arranged at the left end and the right end of the lifting mechanism (2);
the lifting mechanism (2) comprises a double-sub semicircular gear (201), a power rod (202), a double-opening cover plate (203), an auxiliary rod (204), a short rod (205), a pull rod (206) and a tray (207), wherein the double-sub semicircular gear (201) is rotationally connected to the front end and the rear end of the box body (1), the power rod (202) is rotationally connected to the left end and the right end of the double-sub semicircular gear (201), the auxiliary rod (204) is rotationally connected to the front end and the rear end of the double-opening cover plate (203), the lower end of the auxiliary rod (204) is rotationally connected to the outer surfaces of the left end and the right end of the box body (1), the short rod (205) is rotationally connected to the left end and the right end of the double-sub semicircular gear (201), and the tray (207) is rotationally connected to the upper end of the pull rod (206).
2. The high-precision direct-current high-current measuring device according to claim 1, wherein: the tray (207) is fixedly connected with locating plates (208) at the left end and the right end, power spring rods (209) are slidably connected to the front end and the rear end of the locating plates (208), and slope clamping plates (210) are fixedly connected to one ends of the power spring rods (209).
3. The high-precision direct-current high-current measuring device according to claim 1, wherein: fastening mechanism (3) are including crooked spring rod (301), opening board (302), two bullet spring rods (303), wiring board (304), location stripper plate (305), both ends all fixedly connected with location stripper plate (305) around box (1), the equal sliding connection of location stripper plate (305) middle-end has crooked spring rod (301), crooked spring rod (301) one end all fixedly connected with opening board (302), opening board (302) up end fixedly connected with two bullet spring rods (303), two bullet spring rods (303) upper end surface sliding connection have wiring board (304).
4. A high-precision direct-current measuring device according to claim 3, characterized in that: both ends all fixedly connected with torsional spring board (306) around opening board (302), torsional spring board (306) middle-end rotates and is connected with two-way rope winding post (307), both ends surface winding has connecting wire (308) about two-way rope winding post (307), connecting wire (308) electric connection is in wiring board (304), two-way rope winding post (307) middle-end surface winding has and pulls rope (309), pull rope (309) one end fixed connection is in terminal surface under wiring board (304).
5. The high-precision direct-current high-current measuring device according to claim 4, wherein: the wiring board (304) up end fixedly connected with push rod (310), push rod (310) one end all is provided with push pedal (311), push pedal (311) fixed connection is in two apron (203) left and right sides both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222159338.4U CN219245648U (en) | 2022-08-17 | 2022-08-17 | Direct-current high-precision measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222159338.4U CN219245648U (en) | 2022-08-17 | 2022-08-17 | Direct-current high-precision measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219245648U true CN219245648U (en) | 2023-06-23 |
Family
ID=86844279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222159338.4U Active CN219245648U (en) | 2022-08-17 | 2022-08-17 | Direct-current high-precision measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219245648U (en) |
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2022
- 2022-08-17 CN CN202222159338.4U patent/CN219245648U/en active Active
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