CN106644545A - Self-locking device reliability testing equipment - Google Patents
Self-locking device reliability testing equipment Download PDFInfo
- Publication number
- CN106644545A CN106644545A CN201611236097.1A CN201611236097A CN106644545A CN 106644545 A CN106644545 A CN 106644545A CN 201611236097 A CN201611236097 A CN 201611236097A CN 106644545 A CN106644545 A CN 106644545A
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- China
- Prior art keywords
- self
- locking device
- sensor
- guide rail
- frame
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- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses self-locking device reliability testing equipment. The self-locking device reliability testing equipment comprises a frame and a guide rail fixedly disposed on the frame. The guide rail is used for installation of a to-be-tested self-locking device, which is connected with one end of a safety rope, and the other end of the safety rope is connected with a weight. The frame is provided with a pulling device, which is driven by a motor. The pulling device is used to lift or release the weight, and the guide rail is provided with a first sensor and a second sensor. The motor, the first sensor, and the second sensor are connected with an electric control system. The self-locking device reliability testing equipment has advantages of high automation degree, high testing efficiency, and abilities of saving manual pulling time, setting repeated test times of self-locking device at will, and carrying out repeated tests a plurality of times.
Description
Technical field
The present invention relates to Maintenance of Electric Transmission Line application security technology area, and in particular to a kind of self-locking device reliability test sets
It is standby.
Background technology
With the development construction of China's electrical network, the continuous improvement of network system working voltage grade, transmission line of electricity operation dimension
Safety problem during nurse makees also increasingly receives publicity, and at home and abroad carries out the work high above the ground of transmission line of electricity operation maintenance operation
Personnel, safety precautions should be equipped with climbing or work high above the ground, to prevent from height occur during work high above the ground personnel climbing shaft tower
Empty falling accident suddenly.In prior art, generally using self-locking device as the safety equipment for preventing work high above the ground personnel from falling, from
The reliability direct relation of lock device the personal safety of work high above the ground personnel, therefore before self-locking device use, it is necessary to self-locking
Device carries out reliability test, and self-locking device can timely locking during ensureing to fall（Block）, existing self-locking device reliability examination
Test and mainly completed by operating personnel's manual operations cooperative mechanical auxiliary, this test method operation inconvenience, unfailing performance is low, labor
Fatigue resistance is big, it is impossible to carries out successional repetition and tests, test efficiency is low, it is impossible to meet existing demand.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of self-locking device reliability-test equipment, high degree of automation, energy
Enough arbitrarily to arrange self-locking device replicated experimental unitses, test efficiency is high.
In order to solve above-mentioned technical problem, the technical scheme that the present invention is provided is as follows：
A kind of self-locking device reliability-test equipment, including frame and the guide rail being fixed in the frame, the guide rail is used to pacify
Self-locking device to be measured is filled, the self-locking device is connected with one end of safety rope, the other end of safety rope is connected with pouring weight, the frame
On be additionally provided with pulling apparatus, the pulling apparatus by Motor drive, the pulling apparatus be used for lift or discharge the pouring weight, institute
State and be provided with guide rail first sensor and second sensor, the motor, first sensor and second sensor with electrically
Control system is connected.
The pulling apparatus include rope, angle pulley and winding roll, and the angle pulley is arranged in the frame
Side, described rope one end is connected with the pouring weight, and the other end is bypassed and is wrapped in after the angle pulley on the winding roll,
The winding roll is connected by electromagnetic clutch with the motor.
The first sensor and second sensor are laser sensor.
3rd sensor and the 4th sensor are also equipped with the guide rail, the 3rd sensor is used to demarcate self-locking device
Along the extreme position that guide rail is moved upwards, the 4th sensor is used to demarcate the limit position that self-locking device is moved downward along guide rail
Put.
The 3rd sensor and the 4th sensor are laser sensor.
The electric control system includes controller and control panel, and the control panel sets for carrying out operation for user
Put, the operation setting includes default test number (TN) setting, motor speed setting, automatic mode setting, hand hoisting setting, hand
Dynamic decline is arranged, and is additionally operable to carry out default test number (TN) and shows, tests that residue degree shows, pass the test digital display shows and tests not
Passing number shows that the controller is used for the operation of the operation setting Control experiment according to user on the control panel.
The control panel is contact panel.
The guide rail top and bottom further respectively have Anti-extrusion baffle plate.
The bottom of the frame arranges rubber base.
The adjutage that the oriented shell outside extends is set in the frame, the adjutage be used to making the pouring weight with
Horizontal range between the guide rail is maintained at 200～400mm.
The invention has the advantages that：High degree of automation of the present invention, has saved the manpower lifting time, can be any
Self-locking device replicated experimental unitses are set, and test efficiency is high, successional repetition can be carried out repeatedly and tested.
Description of the drawings
Fig. 1 is the structural representation of the self-locking device reliability-test equipment of the present invention；
Fig. 2 is the left view of the self-locking device reliability-test equipment shown in Fig. 1；
Fig. 3 is the enlarged diagram in Fig. 1 at I；
Fig. 4 is the arrangement schematic diagram of control panel；
Fig. 5 is mounted in the structural representation of the Anti-extrusion baffle plate of guide rail upper end；
Fig. 6 is mounted in the structural representation of the Anti-extrusion baffle plate of guide rail lower end；
In figure：1st, frame, 2, guide rail, 3, self-locking device, 4, pouring weight, 5, rope, 6, safety rope, the 7, first angle pulley, 8,
Two angle pulleies, 9, motor, 10, electromagnetic clutch, 11, winding roll, 12, control panel, 13, regulator cubicle, 14, rubber base, 15,
4th sensor, 16, first sensor, 17, second sensor, 18,3rd sensor, 19, adjutage.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described with specific embodiment, so that those skilled in the art can be with
More fully understand the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, Figure 2 and Figure 3, a kind of self-locking device reliability-test equipment, including frame 1, guide rail 2 and lifting dress
Put, guide rail 2 is fixed in frame 1, guide rail 2 is used to be provided with self-locking device to be measured 3, and self-locking device 3 can slide along the direction of guide rail 2, from
Lock device 3 is connected with one end of safety rope 6, and the other end of safety rope 6 is connected with pouring weight 4, and pulling apparatus are arranged in frame 1,
Pulling apparatus are driven by motor 9, and the lifting or release of pouring weight 4 are driven by pulling apparatus；
The side of guide rail 2 is also equipped with first sensor 16 and second sensor 17, if self-locking device 3 can be locked after pouring weight 4 falls
When terminating in the guide rail section between first sensor 16 and second sensor 17, then judge that self-locking device 3 is qualified, motor 9 is fixed on machine
On frame 1, motor 9, first sensor 16 and second sensor 17 are connected with electric control system.
Further, the mounting distance of first sensor 16 and second sensor 17（Along guide rail direction）For 0.2m.
Further, it is made up of the welding of multiple coating steel pipes using frame 1, steel pipe adopts square tube.
Further, guide rail 2 is T-shaped guide rail, is formed using custom mold rolling, is that self-locking device 3 provides dragging track, with
The state that operating personnel climbs shaft tower is imitated, the maximum length of guide rail 2 is 1500mm, during meeting stretching travel as 1000mm pair
Self-locking device 3 is lifted the requirement of decline repeatedly.Guide rail 2 adopts T-shaped guide rail, and its stable accuracy, wearability is good, more conducively with oneself
Lock device 3 is engaged, and makes self-locking device 3 smoothly slide on T-shaped guide rail, improves the accuracy of test.Further, motor 9 is adopted
Alternating current generator, voltage is 380V, and power is 0.75KW.
Pulling apparatus include rope 5, angle pulley and winding roll 11, and angle pulley has two, and respectively first turns to
The angle pulley 8 of pulley 7 and second, the first angle pulley 7 and the second angle pulley 8 are installed in the top of frame 1, and first turns to
Pulley 7 is used to change the direction of rope 5, and the first angle pulley 7 is fixed on the left side of frame 1, and the second angle pulley 8 is fixed on machine
The top of frame 1, is also used for changing the direction of rope 5.
Further, the adjutage 19 extended towards the outside of frame 1 is provided with frame 1, the first angle pulley 7 is installed
On adjutage 19, the first angle pulley 7 with guide rail 2 in the horizontal direction at a distance of 200～400mm so that pouring weight 4 and guide rail
Horizontal range between 2 is maintained at 200～400mm, to imitate time of day under operating personnel climbing shaft tower when, operating personnel's
The distance between safety rope hitch point and shaft tower, so as to motion of the more preferable simulation self-locking device under real working condition, improve test
The degree of accuracy, in addition prevented also from pouring weight 4 occur slight oscillatory when collide with guide rail 2, it is preferred that the first angle pulley 7
With guide rail 2 in the horizontal direction at a distance of 300mm.
Further, the inclined arrangement of adjutage 19, relatively horizontal orientation is faced upward certain angle, not increase frame 1
Remainder（Part in addition to adjutage）In the case of height, increase the hoisting depth of pouring weight 4, and then be conveniently adjusted pouring weight
4 lifting scope.
The one end of rope 5 is connected with pouring weight 4, and the other end is bypassed respectively after the first angle pulley 7 and the second angle pulley 8
It is wrapped on winding roll 11, as shown in Fig. 2 winding roll 11 is connected by electromagnetic clutch 10 with motor 9, specifically, spiral
One end of rotating shaft inside disk 11 is connected with electromagnetic clutch 10, and the other end is connected with frame 1, and electromagnetic clutch 10 is combined
When, drive electromagnetic clutch 10 to rotate by motor 9, so as to drive winding roll 11 to rotate, lift pouring weight 4, when pouring weight 4 is promoted to
After certain position, electromagnetic clutch 10 is separated, and pouring weight 4 relies on self gravitation free fall, while driving winding roll to rotate backward.
Further, rope 5 bypassed and be wrapped on winding roll 11 in vertical direction after the second angle pulley 8, i.e., and second
Rope 5 between angle pulley 8 and winding roll 11 keeps vertical direction, to realize preferably lifting effect.
Further, rope 5 adopts cordage, a diameter of φ 12.5mm.
The side of guide rail 2 is also equipped with the sensor 15 of 3rd sensor 18 and the 4th, and 3rd sensor 18 is used to demarcate and examine
Survey self-locking device 3 to move upwards along guide rail 2（Gravity opposite direction）Extreme position, i.e. the 4th sensor 15 be used to demarcating and detect from
Lock device 3 is moved downward along guide rail 2（Gravity direction）Extreme position.When self-locking device 3 once moves to 3rd sensor 18 or the
During the extreme position that four sensor 15 is located, control system can immediately make self-locking device 3 out of service, prevent self-locking device 3 from skidding off rail
Road.
Further, first sensor 16 and second sensor 17, the sensor 15 of 3rd sensor 18 and the 4th are sharp
Optical sensor, using laser sensor the position of self-locking device 3 is detected, the sensitivity height of its detection, accuracy are high, anti-light, electric dry
Disturb that ability is strong, stability strong, and laser sensor is easy for installation, cost performance is higher.
First sensor 16 and second sensor 17 are used to detect whether self-locking device 3 is qualified products in the present embodiment, if
After pouring weight 4 falls, self-locking device 3 can be locked on the guide rail between first sensor 16 and second sensor 17, then judged
Self-locking device 3 is qualified products, is otherwise substandard product.
Electric control system includes controller and control panel 12, and control panel 12 is arranged in frame 1, for supplying user
Operation setting is carried out, human-computer interaction interface is provided the user with, operation setting includes that default test number (TN) is arranged, automatic mode sets
Put, hand hoisting setting, Manual descending are arranged, be additionally operable to carry out default test number (TN) and show, test residue degree and show, test
Passing number shows and tests that number of non-compliances shows, the controller is used for the operation setting control according to user on the control panel
The operation of test；
As shown in figure 4, being provided with automatic button on control panel 12, button, stop button, hand push button, hand hoisting are started shipment
Button, Manual descending button, electro-magnet switch, lamp ON/OFF, preset times show, residue degree shows, passing number shows, no
Passing number shows and qualification rate shows, wherein automatic button is used to carry out automatic mode, i.e., the test number (TN) for arranging according to user
Automatically tested, hand push button is used to carry out manual mode, and hand push button is first started during operation, restarts hand hoisting or hand
The dynamic button that declines carries out hand hoisting or step-down operation, starts shipment button and stop button is respectively used to the startup of testing equipment and stops
Only, electro-magnet switch is used to control electromagnetic clutch, and lamp ON/OFF is used for the opening/closing of illuminating lamp, and preset times show and remaining
Number of times shows that the display for being respectively used to default test number (TN) and test residue degree show, passing number is shown for showing that test is closed
Lattice number of times, number of non-compliances shows that for showing test unqualified number of times qualification rate is shown for showing test in off-test
Qualification rate.
First sensor 16 and second sensor 17, the sensor 15 of 3rd sensor 18 and the 4th pass through in the present embodiment
Connecting line is connected with control system corresponding component, and control system is installed in regulator cubicle 13.Control system adopts Numeric Control Technology control
System, including：Short-circuiting device, fuse, transformer, frequency converter, relay, laser sensor connector, Programmable Logic Controller
（PLC）, the electrical equipment such as contactor, each electrical equipment of control system is placed in regulator cubicle 13.
Further, control panel 12 is contact panel.
Further, the top and bottom of guide rail 2 further respectively have Anti-extrusion baffle plate, can set in self-locking device reliability test
For when breaking down, prevent self-locking device 3 from disengaging is skidded off from guide rail 2.Installed in Anti-extrusion baffle plate such as Fig. 5 institutes of the upper end of guide rail 2
Show, on the baffle plate circular hole is provided with, the baffle plate is hinged by circular hole with guide rail 2, installed in the Anti-extrusion baffle plate of the lower end of guide rail 2
As shown in fig. 6, being also equipped with circular hole on the baffle plate, the baffle plate is hinged by circular hole with guide rail 2, when using, by guide rail 2
The Anti-extrusion baffle plate that end and lower end are arranged is produced, and makes Anti-extrusion baffle plate protrude from the surface of guide rail 2.
Further, the bottom of frame 1 arranges rubber base 14, for fixed frame 1 and the flatness of adjustment frame 1.
When using, first test number (TN) is set on control panel 12, then will connect the self-locking device 3 of safety rope 6 by just
Normal method loads in guide rail 2, and in the other end of safety rope 6 pouring weight 4 is connected, and the weight of pouring weight 4 is 6kg, then by pouring weight 4 with
Rope 5 connects, and finally, control system combines electromagnetic clutch 10, and controlled motor 9 is rotated, so as to drive electricity by motor 9
Magnet clutch 10 rotates, and so as to drive winding roll 11 to rotate, lifts pouring weight 4, so as to drive self-locking device 3 to slide up along guide rail 2
Dynamic, when pouring weight 4 drives self-locking device 3 to move to 17 position of second sensor, control system controlled motor stops 3 seconds, electromagnetism from
Clutch 10 is separated, and pouring weight 4 falls naturally under self gravitation effect, if at this moment self-locking device 3 is locked at the position of second sensor 17
On the guide rail between the position of first sensor 16, then self-locking device 3 is qualified, and control system makes control panel 12 show once to close
Lattice, if self-locking device 3 falls more than the position of first sensor 16, self-locking device 3 is unqualified, and control system shows control panel 12
It is once unqualified；After the locking of self-locking device 3, after control system makes testing equipment stop 5 seconds, then by 9 turns of control system controlled motor
Dynamic, so that self-locking device 3 is lifted 3 seconds, self-locking device 3 is unlocked, then controlled motor 9 is inverted, and makes self-locking device 3 drop to the 4th sensor
15 positions stop 2 seconds, to verify that self-locking device 3 can be along the smooth slip of guide rail 2, so as to complete a whole set of action cycle after unlocking, it
Continue afterwards to repeat the above-mentioned entire exercise cycle, so as to be operated repeatedly 1000 times, to detect whether self-locking device can normally be locked
Only, whether smooth can slide after unblock, so as to judge the reliability of self-locking device performance.
Self-locking device 3 in the present embodiment can be unlocked voluntarily when elevated.
In the present embodiment pouring weight 4 and self-locking device 3 lift repeatedly by control system Controlled by Programmable Controller motor 9 just
So that rope 5 rises or falls realizations, it is that to imitate human body under human body work high above the ground state prominent to lift and discharge pouring weight 4 for reversion
So fall, check after freely falling body release pouring weight 4 self-locking device 3 whether being capable of effective locking.
The self-locking device reliability-test equipment of the present embodiment, by the free falling of pouring weight 4 weight falling from high altitude is imitated, and is entered
And the Locking property of detection self-locking device, meeting rigid guideway self-locking device carries out the test requirements document that reliability repetition tests 1000 times,
Test is full-automatic, can arbitrarily set test number (TN), can intuitively show the total degree and residue degree of setting, qualified number of times and not
Passing number, with manually and function is automatically brought into operation, has saved the manpower lifting time, it is to avoid carried by artificial the carrying out of testing crew
Draw, improve operating efficiency.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the present invention, the protection model of the present invention
Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (10)
1. a kind of self-locking device reliability-test equipment, is characterized in that, including frame and the guide rail being fixed in the frame, described
Guide rail is used to install self-locking device to be measured, and the self-locking device is connected with one end of safety rope, and the other end of safety rope is connected with weight
Block, is additionally provided with pulling apparatus in the frame, by Motor drive, the pulling apparatus are used to be lifted or be discharged the pulling apparatus
The pouring weight, is provided with first sensor and second sensor, the motor, first sensor and the second sensing on the guide rail
Device is connected with electric control system.
2. self-locking device reliability-test equipment as claimed in claim 1, is characterized in that, the pulling apparatus include rope,
Angle pulley and winding roll, the angle pulley is arranged on frame top, and described rope one end is connected with the pouring weight
Connect, the other end is bypassed and is wrapped in after the angle pulley on the winding roll, the winding roll by electromagnetic clutch with it is described
Motor is connected.
3. self-locking device reliability-test equipment as claimed in claim 1, is characterized in that, the first sensor and second is sensed
Device is laser sensor.
4. self-locking device reliability-test equipment as claimed in claim 1, is characterized in that, the 3rd biography is also equipped with the guide rail
Sensor and the 4th sensor, the 3rd sensor is used to demarcate the extreme position that self-locking device is moved upwards along guide rail, and described the
Four sensors are used to demarcate the extreme position that self-locking device is moved downward along guide rail.
5. self-locking device reliability-test equipment as claimed in claim 4, is characterized in that, the 3rd sensor and the 4th is sensed
Device is laser sensor.
6. self-locking device reliability-test equipment as claimed in claim 1, is characterized in that, the electric control system includes control
Device and control panel, the control panel is used to carry out operation setting for user, and the operation setting includes default test number (TN)
Setting, motor speed setting, automatic mode setting, hand hoisting setting, Manual descending are arranged, and are additionally operable to carry out default test time
Digital display shows, test that residue degree shows, pass the test digital display shows and test that number of non-compliances shows, the controller be used for according to
The operation of family operation setting Control experiment on the control panel.
7. self-locking device reliability-test equipment as claimed in claim 6, is characterized in that, the control panel is contact panel.
8. self-locking device reliability-test equipment as claimed in claim 1, is characterized in that, the guide rail top and bottom are also distinguished
It is provided with Anti-extrusion baffle plate.
9. self-locking device reliability-test equipment as claimed in claim 1, is characterized in that, the bottom of the frame arranges rubber base.
10. self-locking device reliability-test equipment as claimed in claim 1, is characterized in that, the oriented machine is arranged in the frame
The adjutage that frame outside extends, the adjutage be used to making the horizontal range between the pouring weight and the guide rail be maintained at 200～
400mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236097.1A CN106644545A (en) | 2016-12-28 | 2016-12-28 | Self-locking device reliability testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611236097.1A CN106644545A (en) | 2016-12-28 | 2016-12-28 | Self-locking device reliability testing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106644545A true CN106644545A (en) | 2017-05-10 |
Family
ID=58832158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611236097.1A Pending CN106644545A (en) | 2016-12-28 | 2016-12-28 | Self-locking device reliability testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644545A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860990A (en) * | 2017-10-13 | 2018-03-30 | 中建八局第二建设有限公司 | A kind of self-locking device buckle quantity detecting system |
| CN107870130A (en) * | 2017-11-08 | 2018-04-03 | 山西新华化工有限责任公司 | Self-absorbing filtering type protective respirator headband strength-testing machine |
| CN111579395A (en) * | 2020-05-20 | 2020-08-25 | 浙江华电器材检测研究所有限公司 | Test tower device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606635A (en) * | 2015-12-29 | 2016-05-25 | 哈尔滨工业大学 | Sample testbed for EBSD (Electron Back-Scattered Diffraction) testing |
| CN205808679U (en) * | 2016-05-04 | 2016-12-14 | 温州德拓电力器材有限公司 | A kind of testing equipment |
-
2016
- 2016-12-28 CN CN201611236097.1A patent/CN106644545A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606635A (en) * | 2015-12-29 | 2016-05-25 | 哈尔滨工业大学 | Sample testbed for EBSD (Electron Back-Scattered Diffraction) testing |
| CN205808679U (en) * | 2016-05-04 | 2016-12-14 | 温州德拓电力器材有限公司 | A kind of testing equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860990A (en) * | 2017-10-13 | 2018-03-30 | 中建八局第二建设有限公司 | A kind of self-locking device buckle quantity detecting system |
| CN107860990B (en) * | 2017-10-13 | 2023-12-01 | 中建八局第二建设有限公司 | Self-locker buckle quantity detection system |
| CN107870130A (en) * | 2017-11-08 | 2018-04-03 | 山西新华化工有限责任公司 | Self-absorbing filtering type protective respirator headband strength-testing machine |
| CN107870130B (en) * | 2017-11-08 | 2020-04-17 | 山西新华化工有限责任公司 | Self-suction filtering type breathing protection article head belt strength tester |
| CN111579395A (en) * | 2020-05-20 | 2020-08-25 | 浙江华电器材检测研究所有限公司 | Test tower device |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Zhenfu Inventor after: Geng Jingdu Inventor after: An Ping Inventor after: Zhang Yongzhen Inventor after: Du Zhengan Inventor after: Hu Bin Inventor after: Nie Jianhua Inventor before: Li Zhenfu Inventor before: Geng Jingdu Inventor before: An Ping |
|
| CB03 | Change of inventor or designer information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |