CN112526193A - Current detection meter without contact - Google Patents
Current detection meter without contact Download PDFInfo
- Publication number
- CN112526193A CN112526193A CN202011385832.1A CN202011385832A CN112526193A CN 112526193 A CN112526193 A CN 112526193A CN 202011385832 A CN202011385832 A CN 202011385832A CN 112526193 A CN112526193 A CN 112526193A
- Authority
- CN
- China
- Prior art keywords
- cavity
- detection
- motor
- clamping
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
Abstract
A current detecting meter without contact comprises a base and an upper moving rod, wherein the left end of the base is a left clapboard, the right end of the base is a right clapboard, an upper sliding hole with a right opening is formed at the right end of the right partition plate, the left end of the upper sliding hole is communicated with a screw rod cavity, the bottom end of the screw rod cavity is fixedly provided with a main motor box, the upper end of the main motor box is provided with a main motor cavity with an upward opening, the invention utilizes the Lorentz force of current to convert the magnitude of the current into the magnitude of displacement or force, according to the determined magnetic field and the determined length of the electric wire, the current can be measured without peeling, the work danger of maintenance workers is reduced, the work steps of the workers are simplified, the wire clamping device can automatically clamp the wire and automatically detect the wire without lifting or lifting the device by workers, and fully automatically completes the detection process, thereby reducing the workload of the workers and the use difficulty of the wire clamping device.
Description
Technical Field
The invention relates to a contact-free current detection meter, and mainly relates to the technical field of electrical machinery.
Background
When the high-voltage transmission circuit is maintained, the current of the circuit is required to be detected frequently, but due to the characteristics of the high-voltage transmission circuit, the power failure cannot be performed at any time, and the high-voltage high current greatly threatens the safety of maintenance personnel, but due to the characteristics of the current, a maintainer of an electric wire has to be threatened to directly face the high-voltage transmission circuit to peel and test the electric power of the high-voltage transmission line or to test the electric power of the power failure, which is not troublesome or dangerous, and is very unfavorable for the maintenance and detection of workers.
In conclusion, the invention is improved because the high-voltage wire is difficult to peel and troublesome in measuring current and cannot solve the problem of electrical measurement danger.
Disclosure of Invention
The invention aims to provide a current detection meter without a contact, which overcomes the problems.
The invention is realized by the following technical scheme.
The invention relates to a current detection meter without contact, which comprises a base and an upper moving rod, wherein the left end of the base is a left partition plate, the right end of the base is a right partition plate, the right end of the right partition plate is provided with an upper sliding hole with a right opening, the left end of the upper sliding hole is communicated with a screw rod cavity, the bottom end of the screw rod cavity is fixedly provided with a main motor box, the upper end of the main motor box is provided with a main motor cavity with an upward opening, a main motor with an upward rotating shaft direction is fixedly arranged in the main motor cavity, the rotating shaft of the main motor is a screw rod, a screw rod nut seat capable of sliding up and down in the screw rod cavity is arranged on the screw rod in a threaded manner, a detection sliding cavity which is communicated with the left and the right is arranged in the screw rod nut seat, an upper detection base is arranged in the detection sliding cavity and can slide left and right, the bottom end of the detection sliding cavity is provided with a detection, the detection base is characterized in that an opening of a detection base rack cavity is downward arranged at the bottom end of the upper detection base, a detection base motor with an upward rotating shaft is fixedly arranged in the detection base motor cavity, a detection base gear is fixedly arranged at the upper end of the rotating shaft of the detection base motor, a detection base rack is meshed at the rear end of the detection base gear, the detection base rack is fixedly arranged at the rear end of the detection base rack cavity, the left end of the screw rod cavity is communicated with a detection cavity, the left end of the detection cavity is a left partition plate, a left clamping block cavity with a rightward opening is arranged at the right end of the left partition plate, a left clamping block is slidably arranged in the left clamping block cavity, the left clamping block and the left end of the left clamping block cavity are connected with a clamping spring, a clamping rack is fixedly arranged at the upper end of the left clamping block, a clamping gear meshing cavity with a downward opening is arranged at the upper end of the left clamping block cavity, and a, a clamping block sliding gear is fixed at the front end of a motor rotating shaft at the rear end of the clamping gear meshing cavity, the clamping block sliding gear is meshed with the clamping rack, a detection mechanism is fixedly installed at the bottom end of the detection cavity, a detection mechanism is also fixedly installed at the bottom end of the upper detection base, the main body of the detection mechanism is a detection plate, detection plate sliders are fixedly installed at the left and right sides of the detection plate, the detection plate sliders can be installed in detection plate slideways with opening directions facing the detection plate in an up-and-down sliding mode, reset magnet slideways are arranged at opposite directions of the upper detection plate and the lower detection plate, reset magnet sliders are installed in the reset magnet slideways in a sliding mode, reset magnets are fixedly installed on the reset magnet sliders, detection springs are evenly installed on one surfaces of the reset magnet slide, the pressure sensor is fixedly installed on the wall of the detection sliding cavity, a coil cavity is formed in the base, an iron core with the left and right directions is fixedly installed in the coil cavity, a coil is wound on the iron core, an upward moving motor box is fixedly installed at the front end and the rear end of the base, an upward moving sliding cavity which is communicated up and down is formed in the upward moving motor box, an upward moving motor cavity is formed in the wall, close to the right partition plate direction, of the upward moving sliding cavity, an upward moving motor is fixedly installed in the upward moving motor cavity, an upward moving rod is movably installed on the upward moving sliding cavity, an opening faces the motor rod sliding cavity in the right partition plate direction is formed in the upward moving rod sliding cavity, the motor rod sliding cavity is communicated with an upward moving meshing cavity, an upward moving rack is fixedly installed at the left end of the upward moving meshing cavity, and the upward moving motor shaft extends into the upward moving meshing cavity, it has last shift up the gear to shift up fixed mounting on the motor shaft, shift up the gear with shift up rack toothing, shift up pole upper end fixed mounting has the chuck, it has tight motor case to shift up pole upper end fixed mounting, it has the ascending tight pole of clamp of opening to slide the chamber to open in the tight motor case, the tight pole of clamp slides the chamber bottom open have the opening upwards with the tight motor chamber of clamp of tight pole slip chamber intercommunication, the tight motor intracavity fixed mounting of clamp has tight push rod motor of clamp, the tight push rod motor push rod upper end fixed rotation is installed the dwang, dwang fixed mounting is rotor plate bottom under, lower rotor plate upper end fixed mounting is in left clamping bar bottom, rotate on the lower rotor plate install with the right clamping bar of the mutual bilateral symmetry of left clamping bar.
Furthermore, the reset magnet inclined plane is closely attached to a reset electromagnet, and the reset electromagnet is fixedly installed on the wall of the detection sliding cavity.
Furthermore, clamping anti-slip strips are uniformly and fixedly installed on the right clamping rod and the left clamping rod, and an upward moving motor is arranged between the right clamping rod and the left clamping rod.
Furthermore, the upper moving motor box is symmetrically arranged at the front end and the rear end of the right partition plate in a front-rear mode.
Furthermore, a right clamping block is fixedly arranged at the position, corresponding to the clamping rack, of the left end of the detection cavity.
The invention has the beneficial effects that: the invention converts the magnitude of the current into the magnitude of displacement or force by using the Lorentz force of the current, can measure the magnitude of the current without peeling according to the determined magnitude of the magnetic field and the length of the electric wire, reduces the work danger of maintenance workers, simplifies the working steps of the workers, can automatically clamp the electric wire and automatically detect the electric wire, does not need the workers to lift or lift the device, fully automatically finishes the detection process, reduces the workload of the workers and reduces the use difficulty of the invention.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is a right enlarged structural diagram of the right baffle plate 20 in fig. 1 according to the embodiment of the invention.
Fig. 3 is an enlarged schematic view of the chuck 36 in fig. 2 according to the embodiment of the present invention.
Fig. 4 is a left enlarged structural diagram of the detection plate slider 52 in fig. 3 according to the embodiment of the present invention.
Fig. 5 is an enlarged schematic structural diagram of the detection mechanism 28 in fig. 1 according to the embodiment of the present invention.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The current detection meter without contact points described with reference to fig. 1-5 includes a base 24 and an upward moving rod 44, the left end of the base 24 is a left partition plate 10, the right end of the left partition plate is a right partition plate 20, the right end of the right partition plate 20 is provided with an upward sliding hole 17 with a rightward opening, the left end of the upward sliding hole 17 is communicated with a screw rod cavity 22, the bottom end of the screw rod cavity 22 is fixedly provided with a main motor box 19, the upper end of the main motor box 19 is provided with a main motor cavity 21 with an upward opening, a main motor 23 with an upward rotating shaft direction is fixedly arranged in the main motor cavity 21, the rotating shaft of the main motor 23 is a screw rod 18, the screw rod 18 is threadedly provided with a screw rod nut seat 15 capable of sliding up and down in the screw rod cavity 22, a left-right through detection sliding cavity 14 is formed in the screw rod nut seat 15, the detection sliding cavity 14 is provided with an upper detection base 11 capable of sliding left and right, the bottom end of the, the upper end of the detection base motor cavity 74 is communicated with a detection base rack cavity 73, the opening of the detection base rack cavity 73 is downward arranged at the bottom end of the upper detection base 11, a detection base motor 75 with the rotating shaft upward is fixedly arranged in the detection base motor cavity 74, the upper end of the rotating shaft of the detection base motor 75 is fixedly provided with a detection base gear 71, the rear end of the detection base gear 71 is engaged with a detection base rack 72, the detection base rack 72 is fixedly arranged at the rear end of the detection base rack cavity 73, the left end of the screw rod cavity 22 is communicated with a detection cavity 12, the left end of the detection cavity 12 is a left partition plate 10, the right end of the left partition plate 10 is provided with a left clamping block cavity 29 with the rightward opening, a left clamping block 31 is slidably arranged in the left clamping block cavity 29, the left clamping block 31 and the left end of the left clamping block cavity 29 are connected with a clamping spring 30, the upper end of the left clamping block 31 is fixedly provided with a clamping rack 32, a clamping gear meshing cavity 34 with a downward opening is formed in the upper end of the left clamping block cavity 29, a motor with a forward rotating shaft is fixedly mounted at the rear end of the clamping gear meshing cavity 34, a clamping block sliding gear 33 is fixedly mounted at the front end of the rotating shaft of the motor at the rear end of the clamping gear meshing cavity 34, the clamping block sliding gear 33 is meshed with the clamping rack 32, a detection mechanism 28 is fixedly mounted at the bottom end of the detection cavity 12, a detection mechanism 28 is also fixedly mounted at the bottom end of the upper detection base 11, the main body of the detection mechanism 28 is a detection plate 54, detection plate sliders 52 are fixedly mounted at the left and right ends of the detection plate 54, the detection plate sliders 52 can be vertically slidably mounted in detection plate slideways 53 with openings facing the detection plate 54, reset magnet slideways 56 are formed in the positions of the upper and lower detection plates 54 in the opposite directions, a reset magnet 57 is fixedly mounted on the reset magnet slide block 55, a detection spring 59 is uniformly mounted on one surface of the reset magnet slide rail 56 of the detection plate 54, the other end of the detection spring 59 is connected with a pressure sensor 60, the pressure sensor 60 is fixedly mounted on the wall of a detection slide cavity 62, a coil cavity 27 is formed in the base 24, an iron core 26 in the left and right direction is fixedly mounted in the coil cavity 27, a coil 25 is wound on the iron core 26, an upper moving motor box 47 is fixedly mounted at the front and rear ends of the base 24, an upper moving slide cavity 46 which is vertically communicated is formed in the upper moving motor box 47, an upper moving motor cavity 39 is formed in the wall of the upper moving slide cavity 46 close to the right partition plate 20, an upper moving motor 40 is fixedly mounted in the upper moving motor cavity 39, the rotating shaft of the upper moving motor 40 is an upper moving shaft 41, and an upper moving rod 44 is slidably mounted on the upper moving, the upper moving rod 44 is provided with a motor rod sliding cavity 37 with an opening facing the direction of the right partition plate 20 in a position close to the right partition plate 20, the motor rod sliding cavity 37 is communicated with an upper moving meshing cavity 45, the left end of the upper moving meshing cavity 45 is fixedly provided with an upper moving rack 43, the upper moving motor shaft 41 extends into the upper moving meshing cavity 45, the upper moving motor shaft 41 is fixedly provided with an upper moving gear 42, the upper moving gear 42 is meshed with the upper moving rack 43, the upper end of the upper moving rod 44 is fixedly provided with a clamping head 36, the upper end of the upper moving rod 44 is fixedly provided with a clamping motor box 68, the clamping motor box 68 is provided with a clamping rod sliding cavity 51 with an upward opening, the bottom end of the clamping rod sliding cavity 51 is provided with a clamping motor cavity 69 with an upward opening communicated with the clamping rod sliding cavity 51, and the clamping push rod motor 61 is fixedly arranged, press from both sides tight push rod motor 61 push rod upper end fixed rotation and install dwang 66, dwang 66 fixed mounting is in rotor plate 64 bottom down, rotor plate 64 upper end fixed mounting is in left clamping bar 63 bottom down, rotate on the rotor plate 64 down install with the mutual bilateral symmetry's of left clamping bar 63 right clamping bar 48.
Advantageously, the reset magnet 57 is in close contact with the reset electromagnet 58, and the reset electromagnet 58 is fixedly mounted on the wall of the detection slide cavity 62.
Advantageously, clamping skids 50 are uniformly and fixedly arranged on the right clamping rod 48 and the left clamping rod 63, and an upward moving motor 40 is arranged between the right clamping rod 48 and the left clamping rod 63.
Advantageously, the upper moving motor box 47 is installed at the front and rear ends of the right partition plate 20 in a front-rear symmetrical manner.
Advantageously, a right clamping block 35 is fixedly mounted at the left end of the detection chamber 12 corresponding to the clamping rack 32.
Sequence of mechanical actions of the whole device:
when the device works, firstly, an electric wire is placed between the left clamping rod 63 and the right clamping rod 48, then the clamping push rod motor 61 is started to pull the rotating rod 66 downwards, the right clamping rod 48 and the left clamping rod 63 are driven to move downwards, the left clamping rod 63 and the right clamping rod 48 are close to each other under the action of the left wall and the right wall of the clamping rod sliding cavity 51 to clamp the electric wire, then the upward moving motor 40 at the front end and the rear end is started to drive the upward moving motor shaft 41 and the upward moving gear 42 to rotate, the upward moving rack 43 meshed with the upward moving gear 42 is driven to move downwards, and the right partition plate 20 is made to.
When the right partition plate 20 moves upwards to approach the electric wire, the detection base motor 75 is started to drive the detection base gear 71 to rotate, so that the detection base rack 72 meshed with the detection base gear 71 moves leftwards, the upper detection base 11 is driven to move leftwards in the detection sliding cavity 14, the upper inlet of the detection cavity 12 is opened, the upward moving motor 40 continues to rotate to drive the right partition plate 20 to move upwards at the moment until the electric wire reaches between the right clamping block 35 and the left clamping block 31, then the rear end motor of the clamping block sliding gear 33 is powered off, the left clamping block 31 moves rightwards under the action of the clamping spring 30 to clamp the electric wire, then the reset electromagnet 58 is powered on, so that the reset magnet 57 and the reset electromagnet 58 are relatively fixed, then the main motor 23 is started to drive the screw rod 18 to rotate to drive the detection mechanism 28 at the bottom end of the upper detection base 11 to touch the electric wire, then the reset electromagnet 58 is powered, then, the coil 25 is energized to make the iron core 26 generate strong magnetism, and generate a strong magnetic field vertically passing through the wire, the wire generates a lorentz force to generate an upward or downward force to push the detection plate 54 at the upper end or the lower end, the detection plate 54 generates a pressure to the pressure sensor 60 through the detection spring 59, and the current intensity can be calculated according to F = BIL under the condition that the length of the magnetic field is determined.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a need not electric current detection table of contact, includes base and upper shift rod, its characterized in that: the detection device comprises a base, a detection base and a detection base, wherein the left end of the base is a left partition plate, the right end of the base is a right partition plate, the right end of the right partition plate is provided with an upper sliding hole with a right opening, the left end of the upper sliding hole is communicated with a screw rod cavity, the bottom end of the screw rod cavity is fixedly provided with a main motor box, the upper end of the main motor box is provided with a main motor cavity with an upward opening, the main motor cavity is fixedly provided with a main motor with an upward rotating shaft direction, the main motor rotating shaft is a screw rod, a screw rod nut seat capable of sliding up and down in the screw rod cavity is arranged on the screw rod, a detection sliding cavity which is communicated with the left and right is arranged in the screw rod nut seat, the detection sliding cavity is arranged in the detection sliding cavity and can slide left and right, the bottom end of the detection sliding cavity is provided with an upward detection base motor cavity, the detection device is characterized in that a detection base motor with an upward rotating shaft is fixedly arranged in a detection base motor cavity, a detection base gear is fixedly arranged at the upper end of the rotating shaft of the detection base motor, a detection base rack is meshed at the rear end of the detection base gear, the detection base rack is fixedly arranged at the rear end of a detection base rack cavity, the left end of a screw rod cavity is communicated with a detection cavity, the left end of the detection cavity is a left partition plate, the right end of the left partition plate is provided with a left clamping block cavity with a rightward opening, a left clamping block is slidably arranged in the left clamping block cavity, the left clamping block and the left end of the left clamping block cavity are connected with a clamping spring, a clamping rack is fixedly arranged at the upper end of the left clamping block, a clamping gear meshing cavity with a downward opening is arranged at the upper end of the left clamping block cavity, a motor with a forward rotating shaft is fixedly arranged at the rear end of the clamping gear meshing cavity, and, the detection device comprises a clamping block, a sliding gear, a detection cavity, a detection mechanism, a detection magnet slide way, a reset magnet slide block, a reset magnet, a detection spring, a pressure sensor, a coil cavity and a coil cavity, wherein the clamping block sliding gear is meshed with the clamping rack, the bottom end of the detection cavity is fixedly provided with the detection mechanism, the bottom end of the upper detection base is also fixedly provided with the detection mechanism, the main body of the detection mechanism is a detection plate, the left end and the right end of the detection plate are fixedly provided with the detection plate slide blocks, the detection plate slide blocks can be vertically slidably arranged in the detection plate slide way with the opening direction facing the detection plate, the opposite direction positions of the upper detection plate and the lower detection plate are provided with the reset magnet slide way, the reset magnet slide way is, the coil cavity is internally and fixedly provided with an iron core with a left direction and a right direction, the iron core is wound with a coil, the front end and the rear end of the base are fixedly provided with an upward moving motor box, the upward moving motor box is provided with an upward moving sliding cavity which is communicated with the upper and lower parts, the upward moving sliding cavity is close to the wall of the right partition board, the upward moving motor cavity is fixedly provided with an upward moving motor, the upward moving motor rotating shaft is an upward moving motor shaft, the upward moving sliding cavity is provided with an upward moving rod, the upward moving rod is provided with an opening towards the motor rod sliding cavity of the right partition board direction, the motor rod sliding cavity is communicated with an upward moving meshing cavity, the left end of the upward moving meshing cavity is fixedly provided with an upward moving rack, the motor shaft extends into the upward moving meshing cavity, the upward moving motor shaft is fixedly provided with an upward moving gear, and the upward moving gear is meshed with, it has the chuck to go up pole upper end fixed mounting, it has clamping motor case to go up pole upper end fixed mounting, it has the ascending clamping bar sliding chamber of opening to open in the clamping motor case, clamping bar sliding chamber bottom open have the opening upwards with the clamping motor chamber of clamping bar sliding chamber intercommunication, clamping motor intracavity fixed mounting has clamping push rod motor, clamping push rod motor push rod upper end fixed rotation installs the dwang, dwang fixed mounting is rotor plate bottom under, rotor plate upper end fixed mounting is in left clamping bar bottom, rotate on the rotor plate down install with the right clamping bar of the mutual bilateral symmetry of left clamping bar.
2. The contact-less current sensing meter of claim 1, wherein: the reset magnet inclined plane is tightly attached to the reset electromagnet, and the reset electromagnet is fixedly installed on the wall of the detection sliding cavity.
3. The contact-less current sensing meter of claim 1, wherein: and clamping anti-slip strips are uniformly and fixedly arranged on the right clamping rod and the left clamping rod, and an upward moving motor is arranged between the right clamping rod and the left clamping rod.
4. The contact-less current sensing meter of claim 1, wherein: the upper moving motor box is symmetrically arranged at the front end and the rear end of the right clapboard in a front-back mode.
5. The contact-less current sensing meter of claim 1, wherein: and a right clamping block is fixedly arranged at the position, corresponding to the clamping rack, of the left end of the detection cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011385832.1A CN112526193A (en) | 2020-12-02 | 2020-12-02 | Current detection meter without contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011385832.1A CN112526193A (en) | 2020-12-02 | 2020-12-02 | Current detection meter without contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112526193A true CN112526193A (en) | 2021-03-19 |
Family
ID=74995909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011385832.1A Withdrawn CN112526193A (en) | 2020-12-02 | 2020-12-02 | Current detection meter without contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112526193A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376425A (en) * | 2021-05-26 | 2021-09-10 | 浙江中拓高压电器有限公司 | Voltage and current digital sensor |
| CN117712845A (en) * | 2023-12-21 | 2024-03-15 | 河北美辉科技有限公司 | Intelligent electrical power distribution cabinet |
-
2020
- 2020-12-02 CN CN202011385832.1A patent/CN112526193A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376425A (en) * | 2021-05-26 | 2021-09-10 | 浙江中拓高压电器有限公司 | Voltage and current digital sensor |
| CN117712845A (en) * | 2023-12-21 | 2024-03-15 | 河北美辉科技有限公司 | Intelligent electrical power distribution cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112526193A (en) | Current detection meter without contact | |
| CN101806860B (en) | Adjustable-assembly parameter endurance testing device for electromagnetic relay | |
| CN212083586U (en) | Partial discharge ultrasonic detection device | |
| CN205384352U (en) | Pull rod cam -type travel switch detection device | |
| CN111474066B (en) | Comprehensive performance sampling detector for insulation packaging paper | |
| CN200975882Y (en) | Stator stack thickness detector | |
| CN201622143U (en) | Device for measuring movement tension of speed limiter for elevator and movement tensile force of safety tongs | |
| CN217786108U (en) | Gas cylinder detects uses size measurement device | |
| CN209992162U (en) | Pantograph performance testing device | |
| CN203324013U (en) | Detector for detecting flexibility of oil bearing of permanent-magnet DC motor | |
| CN216646144U (en) | Bionic material tension-torsion fatigue testing machine | |
| CN215207993U (en) | Automatic staircase and moving walk fishback safety inspection device | |
| CN109238548A (en) | A kind of device measuring elevator traction machine braking moment | |
| CN210374852U (en) | Utensil is examined to casting reel grooving | |
| CN215066286U (en) | Building external wall insulation board heat conductivity detection device | |
| CN112676196A (en) | Positive temperature coefficient thermistor resistance detection device | |
| CN208736594U (en) | A kind of device measuring elevator traction machine braking moment | |
| CN203422187U (en) | Detection device of drum-type brake | |
| CN218121847U (en) | Device for exploring influences of different electric quantities on lifting force of portable magnet yoke flaw detector | |
| CN215264001U (en) | Electric power instrument detection device | |
| CN217920928U (en) | Speedometer for elevator detection | |
| CN212871573U (en) | Bolt fastening force detection tool | |
| CN217818465U (en) | Detection device for electromechanical device installation | |
| CN212411386U (en) | Intelligent anti-electricity-stealing simulation training device easy to operate | |
| CN212482326U (en) | Electrical detection automation equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210319 |