CN104215447B - The multi-functional testing machine of window handle - Google Patents
The multi-functional testing machine of window handle Download PDFInfo
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- CN104215447B CN104215447B CN201410485669.4A CN201410485669A CN104215447B CN 104215447 B CN104215447 B CN 104215447B CN 201410485669 A CN201410485669 A CN 201410485669A CN 104215447 B CN104215447 B CN 104215447B
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Abstract
The invention discloses a kind of multi-functional testing machine of window handle, including workbench, it is characterised in that also include serviceability test device and strength character test device；Serviceability test device includes simulation window；The fixing oscillating cylinder that connects on installing plate, oscillating cylinder connection " 7 " font drive link, " 7 " font drive link is sheathed movable sleeve assembly immediately below simulation window and on cross bar；Installing rack side is provided with cantilever beam, and the cantilever beam other end connects nylon wedge mount；Described strength character test device includes force-bearing table, load plate, loading head, power transmission shaft and handle frame；Handle frame is arranged on below force-bearing table；Strength character test device also includes the counterweight of load plate load.Realize the operational torque test of complete pairwise testing handle on same workbench, Wind-Pressure Resistance test, Guan Bi clearance test, test in service life and additional operations power test etc., the true service condition simulating handle, the abrasion to test handle will not be increased.
Description
Technical field
The invention belongs to window handle detection technique field, relate to handle operational torque in window, Wind-Pressure Resistance,
Guan Bi gap, service life and the detection equipment of opposing additional external force ability, be specially a kind of window with holding
The multi-functional testing machine of hands.
Background technology
People are when using handle to close sash rotating lock tongue compression wedge mount with locking sash, and handle is
Bearing pulling force at handle, dead bolt overcomes the elastic resistance of sealing joint strip to rotate while compressing wedge mount
Motion.Thus analyze, judge the quality of handle, in addition to most basic visual examination and feel, the most main
That wants is the judgement to handle serviceability quality, to simulate the actually used situation of handle for this as far as possible
Carry out operational torque test, additional moment test, Wind-Pressure Resistance test, close clearance test, service life
Deng test, could analyze, judge the quality of handle more accurately.
In the past, above-mentioned various performance tests are carried out the most on a different device, need constantly
Dismantle, be arranged on different test devices, not only waste time and energy, and required test device is many, accounts for
Big with space.In addition to the above-mentioned problems, when using shuttle machinery to carry out life test, repeatedly open
Close, there is also some following problems:
1, life test is to bear elastic resistance but handle fails to simulate and bears the feelings of pulling force in dead bolt simulation
Carry out under condition, it is impossible to simulate the actually used situation of handle the most truly；
2, its reciprocal active force can not 100% rotatory force being converted into handle, the rotation of handle is not very
Smooth and easy, not only rotational angle is little, it is impossible to simulates the actual angle rotatable of handle completely, and can increase
The abrasion of handle.
Summary of the invention
Problem to above-mentioned handle test device, it is an object of the invention to provide a kind of simple and compact for structure,
The multi-functional testing machine of window handle of actually used situation can be simulated truly.
A kind of multi-functional testing machine of window handle, including workbench, it is characterised in that also include being arranged on
Serviceability test device and the strength character being arranged on workbench latter half of workbench first half are surveyed
Electricity testing device；Described serviceability test device includes installing rack, and installing rack upper end is fixing connects simulation window,
Setting crossbeam in the middle part of installing rack, crossbeam is provided with installing plate；Simulation window bottom side is provided with handle mount point；
Fixing connection oscillating cylinder on installing plate, oscillating cylinder is connected above the montant lower end of " 7 " font drive link,
The cross bar of " 7 " font drive link upper end is immediately below simulation window handle mount point and sheathed activity on cross bar
Grip assembly；Installing rack side is provided with cantilever beam support, and cantilever beam support is arranged on the table, cantilever beam
Cantilever tip connecting cantilever beam one end, the cantilever beam other end connects nylon wedge mount, and nylon wedge mount is just
To simulation window handle mount point；Be provided with cantilever beam locating support below cantilever beam, cantilever beam locating support with
Cushion block it is provided with between cantilever beam；Described serviceability test device also includes locating clip, locating clip clip slot with
Handle handle is adaptive, connects and have suspention hammer assembly bottom locating clip；Described strength character test device includes
Force-bearing table, load plate, loading head, power transmission shaft and handle frame, power transmission shaft runs through force-bearing table central authorities；Hold
Power platform upper surface is provided with load plate guide sleeve, and force-bearing table bottom surface is provided with power transmission shaft guide sleeve；Power transmission shaft upper end
Passing over load plate guide sleeve at force-bearing table to be connected with load plate, load plate is arranged on load plate guide sleeve
In；Power transmission shaft upper end is arranged with spring, spring below load plate with load plate Elastic Contact；Power transmission shaft
Lower end is connected through power transmission shaft guide sleeve with loading head below force-bearing table；Loading head is arranged on transmission spindle guide
Outside just overlapping；Handle frame is arranged on below force-bearing table；Strength character test device also includes load plate load
Counterweight.
Further, described movable sleeve assembly includes that clip slot fixed by cross bar set apertured and handle handle,
Movable sleeve assembly is by the sheathed borehole jack of cross bar on the cross bar of " 7 " font drive link, and cross bar overlaps below apertured
It is provided with tightening nut to position on " 7 " font drive link.
Further, locating clip clip slot top is provided with the fixing bolt across clip slot, the side of locating clip
It is provided with screwing bolts；Locating clip is connected by screw with suspention hammer assembly.
Further, suspention hammer assembly includes two identical suspention hammers, fixing between two suspention hammers
Connect.
Further, handle frame include two flat boards composition the support that cross section is L-type, two flat boards it
Between fixing connect, the flat board wherein erectting setting is provided with handle mounting groove or handle installing plate；Handle frame
Can move on the table.
Further, load plate edge is provided with roller, roller and load plate guide sleeve contact internal walls
And can roll in load plate guide sleeve.
Further, described power transmission shaft upper end is socket cap, and socket cap diameter is less than the diameter of power transmission shaft,
Load plate central authorities are provided with the hole adaptive with described socket cap, and socket cap is connected with load plate by hole；Transmission
Axle lower end is provided with screw thread, and the middle position of loading head is provided with inner bolt hole, power transmission shaft lower end and loading head screw thread
Connect.
Further, it is provided with locking nut between power transmission shaft lower end and loading head.
Further, oscillating cylinder is semi-annular, and it is externally provided with cylinder head, and oscillating cylinder passes through gas
Cylinder shaft set is connected with " 7 " font drive link montant lower end；Rotary shaft between oscillating cylinder and cylinder axle sleeve
It is flexibly connected by keyway.
Further, also including counterweight frame or Weight box, counterweight is arranged on counterweight frame or counterweight
In box.
The invention has the beneficial effects as follows and provide a kind of multi-functional testing machine of window handle, it is achieved in same work
The operational torque test of complete pairwise testing handle, Wind-Pressure Resistance test, Guan Bi clearance test, use in station
Life test and additional operations power test etc., the present invention can truly simulate the service condition of handle,
Then obtain the most authentic and valid test result, simultaneously in test process, will not increase and test is held
The abrasion of hands, easy to use.
Accompanying drawing explanation
The structural representation of the multi-functional testing machine of window handle that Fig. 1 provides for the present invention；
Fig. 2 is that serviceability shown in Fig. 1 tests apparatus structure schematic diagram；
Fig. 3 is the partial enlarged drawing of the test device of serviceability shown in Fig. 2；
Fig. 4 is the structural representation of the test device of strength character shown in Fig. 1；
Fig. 5 is the schematic diagram that the present invention carries out when operational torque is tested；
Fig. 6 is the schematic diagram that the present invention carries out when Wind-Pressure Resistance is tested；
Fig. 7 be the present invention carry out close clearance test time schematic diagram；
Fig. 8 is the schematic diagram that the present invention carries out when testing service life；
Fig. 9 is the schematic diagram that the present invention carries out when additional operations power is tested.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawings and specifically
The present invention is described in further detail for embodiment.
A kind of multi-functional testing machine of window handle, including workbench 1, also includes being arranged on as shown in Figure 1
The serviceability of workbench 1 first half is tested device 2 and is arranged on the intensity of workbench latter half
Performance testing device 3.
As in figure 2 it is shown, and combine shown in Fig. 3, described serviceability test device include installing rack 4,
Simulation window 5, oscillating cylinder 8, " 7 " font drive link 9, cantilever beam support 11 and cantilever beam 12,
Locating clip 15 and suspention hammer assembly 16, installing rack 4 upper end is fixing connects simulation window 5, in the middle part of installing rack 4
If crossbeam 6, crossbeam 6 is provided with installing plate 7；Simulation window 5 bottom side is provided with handle mount point；Install
Fixing connection oscillating cylinder 8 on plate 7, oscillating cylinder 8 is semi-annular, and it is externally provided with cylinder head, pendulum
Dynamic air cylinder 8 is connected with " 7 " font drive link 9 montant lower end by cylinder axle sleeve, oscillating cylinder and cylinder
Rotary shaft between axle sleeve is flexibly connected by keyway；The cross bar of " 7 " font drive link 9 upper end is in simulation
Sheathed movable sleeve assembly 10 immediately below window 5 handle mount point and on cross bar.
Movable sleeve assembly 10 includes that cross bar set apertured and handle handle fix clip slot, movable sleeve assembly 10
By the sheathed borehole jack of cross bar on the cross bar of " 7 " font drive link 9, can slide on cross bar, cross bar set
Tightening nut it is provided with to position on " 7 " font drive link 9 below apertured；Handle 18 fix clip slot with
The shape adaptation of test handle handle.
Oscillating cylinder by self Pneumatic valve regulation oscillating cylinder the anglec of rotation so that it is the anglec of rotation with
The anglec of rotation of test handle is consistent, and the major function of oscillating cylinder is through semicircular ring cylinder by pneumatic
Power is converted into rotary shaft rotation in the range of 0-180 degree, thus is passed by cylinder axle sleeve, " 7 " font
The rotation of rotational cylinder axle is passed to test handle by the transmission of lever and movable sleeve assembly, it is achieved test
The rotation of handle.Compared with using shuttle mechanical device, oscillating cylinder is used to have structure letter
Single, compare and meet test handle side rotational angle and stressing conditions, the abrasion of test handle will not be increased.
Described installing rack 4 side is provided with cantilever beam support 11, and cantilever beam support 11 arranges on the table,
Connecting cantilever beam 12 one end, cantilever beam support 11 top, cantilever beam 12 other end is provided with nylon wedge mount
17, nylon wedge mount 17 is just to simulation window 5 handle mount point；Nylon wedge mount 17 be triangle or
The plate of trapezoidal or the most applicable shape, when test, the dead bolt of test handle screws in the end of nylon wedge mount
The lock-tongue port on window frame is stretched into simulation dead bolt in face.In the middle part of cantilever beam 12, lower section is provided with cantilever beam locating support
13, it is provided with cushion block 14, cantilever beam locating support 13 between cantilever beam locating support 13 and cantilever beam 12
Fix on the table.Extraction cushion block 14 can make cantilever beam 12 lose support force, so that being applied to hang
On the dead bolt that can act on test handle on arm beam, for the simulated wind pressure work to the dead bolt of test handle
Firmly.
Described serviceability test device also includes locating clip 15, locating clip 15 clip slot and test handle 18
Handle adaptive, locating clip 15 clip slot top is provided with the fixing bolt across clip slot, tests handle during test
The handle of 18 is placed in clip slot, fixing bolt horizontal with handle above and fix, make the locating clip will not be because of
Handle is departed from by action of gravity；The side of locating clip 15 is additionally provided with screwing bolts, screws adjustable diameter and screw adjusting folder
Well width makes locating clip be fixed on the relevant position of test handle handle；Bottom locating clip 15 by screw even
Being connected to suspention hammer assembly 16, suspention hammer assembly 16 includes two identical suspention hammers, two suspention hammers
Between fixing connect.
As shown in Figure 4, strength character test device include force-bearing table 19, load plate 21, loading head 22,
Power transmission shaft 23 and handle frame 24；Force-bearing table 19 central authorities are provided with circular hole, and power transmission shaft 23 passes through from circular hole
Wear force-bearing table 19 central authorities；Power transmission shaft 23 upper end is socket cap, and socket cap diameter is less than power transmission shaft diameter,
Load plate 21 central authorities are provided with the hole adaptive with socket cap, and force-bearing table 19 upper surface is provided with load plate guide sleeve
25, the upper end of power transmission shaft 23 force-bearing table 19 pass over load plate guide sleeve 25 and by socket cap with
The hole of load plate 21 central authorities connects, and load plate 21 is arranged in load plate guide sleeve 25, load plate 21
Edge is provided with roller 26, and roller 26 and load plate guide sleeve 25 contact internal walls also can be in load plate
Roll in guide sleeve 25；The sheathed spring in power transmission shaft 23 upper end, spring below socket cap and can with add
Support plate Elastic Contact；Power transmission shaft 23 lower end is provided with screw thread, and loading head 22 central authorities are provided with inner bolt hole, load
Platform 19 bottom surface is provided with power transmission shaft guide sleeve 27, and power transmission shaft 23 lower end passes transmission below force-bearing table 19
Threadeding with loading head 22 in axle guide sleeve 27, loading head 22 is arranged on outside power transmission shaft guide sleeve 27；
Locking nut it is provided with for the location of loading head and locking between power transmission shaft 23 and loading head 22；Load plate
21 roll correcting, in conjunction with power transmission shaft guide sleeve 27 by the roller 26 of surrounding in load plate guide sleeve 25
Correcting to power transmission shaft 23, both can realize steadily loading, and will not reduce again load because of resistance, make to execute
The load added is more accurately, steadily and conveniently.
Handle frame 24 is arranged on below force-bearing table 19 and is fixedly connected on workbench, and handle frame 24 includes
The support that cross section is L-type of two flat board compositions, fixing connection between two flat boards, wherein erect setting
Flat board is provided with handle mounting groove or handle installing plate；Handle frame can move on the table, in order to
When test handle 18 is arranged on handle mounting groove or handle installing plate, the position of mobile handle frame makes difference
The stress point of test handle 18 is just to loading head 22.
Strength character test device also includes the counterweight 28 of load plate load, and deposits the counterweight frame of counterweight
Or Weight box, when device leaves unused, counterweight is placed in counterweight frame or Weight box.
During test, first test handle is mounted on the side, simulation window bottom of workbench first half
In handle mount point, or on the handle mounting groove of the handle frame of workbench latter half or installing plate, survey
Examination handle is arranged on simulation window, when regulation rectification makes handle dead bolt screw in cantilever beam one end nylon wedge mount,
The end face of the cushion block above its screw-in face and cantilever beam locating support is in same level.Carry out in order
Properties is tested.
(1) operational torque test
As shown in 5 figures, serviceability test device does not installs power transmission shaft, and test handle 18 handle is by fixed
Position folder connects suspention hammer assembly 16, the pulling force that when closing window with simulation, handle bears, and manually will hold
Hands 18 turns to stop at this position when dead bolt 29 will screw in the nylon wedge mount 17 of cantilever beam one end,
Moment when dead bolt 29 is screwed in wedge mount 17 is measured with torque wrench.
(2) Wind-Pressure Resistance test
As shown in 6 figures, after testing operational torque, the dead bolt 29 of handle 18 is screwed in nylon wedge mount
17 bottom surfaces, the cushion block 14 that extraction is placed on cantilever beam locating support, make cantilever beam lose support force,
Active force vertically downward is applied with simulated wind pressure to the dead bolt 29 of test handle in the middle part of cantilever beam
Active force, measures the cantilever beam above handle dead bolt with dial gauge 30 and and is making before applying active force
Upright position under Yong Li, calculates the changing value of cantilever beam upright position whether to determine test handle performance
Meet the requirements.
(3) Guan Bi clearance test
As shown in 7 figures, after testing Wind-Pressure Resistance test, it is placed on above cantilever beam locating support in extraction
Cushion block 14 in the case of the dead bolt 29 of handle 18 is screwed in nylon wedge mount 17 bottom surface, then lay down
Test handle 18 on locating clip and suspention hammer assembly 16, with dial gauge 30 measure lay down locating clip and
Before and after suspention hammer, the upright position of the cantilever beam above handle dead bolt, calculate the vertical position recorded
The changing value put, to determine whether test handle meets the requirements.
(4) test in service life
As shown in 8 figures, test handle 18 is assemblied in the clip slot of movable sleeve assembly 10, by " 7 "
Font transmission 9 bar and cylinder axle sleeve are connected with oscillating cylinder 8, open oscillating cylinder 8, oscillating cylinder 8
Rotary shaft under the effect of aerodynamic force, reciprocating rotation in the range of certain angle, and by drive link 9
And movable sleeve assembly 10 drives test handle 18 reciprocating rotation, rotating by observing test handle 18
During with or without abnormal conditions or damage, and calculate test handle and be correlated with afterwards between reciprocating rotation
The changing value of data, to determine whether handle meets the requirements.
(5) additional operations power test
As shown in 9 figures, another test handle 18 is arranged on handle frame 24, and being subject to its handle
Force aligns loading head 22, places a number of counterweight 28 and execute handle with simulation in load plate 21
Add additional operations power, measure the handle stress point vertical position before and after applying counterweight with dial gauge 30
Put, calculate the changing value recording upright position, and observe whether handle is stuck, to determine test handle
Whether meet the requirements.
Above the present invention is described in detail.Principle and embodiment to the present invention are carried out herein
Illustrate, the core concept being only intended to help to understand the present invention described above.It should be pointed out that, for this
For the those of ordinary skill of technical field, under the premise without departing from the principles of the invention, it is also possible to this
Invention carries out some improvement and modification, and these improve and modify the protection model also falling into the claims in the present invention
In enclosing.
Claims (10)
1. the multi-functional testing machine of window handle, including workbench, it is characterised in that: also include arranging
Serviceability at workbench first half is tested device and is arranged on the strength character of workbench latter half
Test device；Described serviceability test device includes installing rack, and installing rack upper end is fixing connects simulation window,
Setting crossbeam in the middle part of installing rack, crossbeam is provided with installing plate；Simulation window bottom side is provided with handle mount point；Peace
Fixing connection oscillating cylinder on dress plate, oscillating cylinder is connected above the montant lower end of " 7 " font drive link,
The cross bar of " 7 " font drive link upper end is immediately below simulation window handle mount point and sheathed activity on cross bar
Grip assembly；Installing rack side is provided with cantilever beam support, and cantilever beam support is arranged on the table, and cantilever beam props up
Connecting cantilever beam one end, frame top, the cantilever beam other end connects nylon wedge mount, and nylon wedge mount is just to mould
Intend window handle mount point；Cantilever beam locating support, cantilever beam locating support and cantilever beam it is provided with below cantilever beam
Between be provided with cushion block；Described serviceability test device also includes locating clip, locating clip clip slot and handle handle
Adaptation, connects bottom locating clip and has suspention hammer assembly；Described strength character test device includes force-bearing table, adds
Support plate, loading head, power transmission shaft and handle frame, power transmission shaft runs through force-bearing table central authorities；Force-bearing table upper surface sets
Load plate guide sleeve, force-bearing table bottom surface is had to be provided with power transmission shaft guide sleeve；Power transmission shaft upper end is worn above force-bearing table
Crossing load plate guide sleeve to be connected with load plate, load plate is arranged in load plate guide sleeve；Power transmission shaft upper end is overlapped
Be provided with spring, spring below load plate with load plate Elastic Contact；Power transmission shaft lower end is worn below force-bearing table
Cross power transmission shaft guide sleeve to be connected with loading head；Loading head is arranged on outside power transmission shaft guide sleeve；Handle frame is arranged on
Below force-bearing table；Strength character test device also includes the counterweight of load plate load.
The multi-functional testing machine of window handle the most according to claim 1, it is characterised in that: described work
Dynamic grip assembly includes that clip slot fixed by cross bar set apertured and handle handle, and movable sleeve assembly overlaps apertured by cross bar
It is enclosed within the cross bar of " 7 " font drive link, below cross bar set apertured, is provided with tightening nut with at " 7 " font
Position on drive link.
The multi-functional testing machine of window handle the most according to claim 1, it is characterised in that: locating clip
Clip slot top is provided with the fixing bolt across clip slot, and the side of locating clip is provided with screwing bolts；Locating clip is with outstanding
Sash weight assembly is connected by screw.
The multi-functional testing machine of window handle the most according to claim 3, it is characterised in that: suspention hammer
Assembly includes two identical suspention hammers, fixing connection between two suspention hammers.
The multi-functional testing machine of window handle the most according to claim 1, it is characterised in that: handle frame
Including the support that cross section is L-type of two flat board compositions, between two flat boards, fixing connection, wherein erects setting
Flat board be provided with handle mounting groove or handle installing plate；Handle frame can move on the table.
The multi-functional testing machine of window handle the most according to claim 5, it is characterised in that: load plate
Edge is provided with roller, roller and load plate guide sleeve contact internal walls and can roll in load plate guide sleeve
Dynamic.
The multi-functional testing machine of window handle the most according to claim 6, it is characterised in that: described biography
Moving axis upper end is socket cap, and socket cap diameter is less than the diameter of power transmission shaft, and load plate central authorities are provided with and described circle
The hole that stigma is adaptive, socket cap is connected with load plate by hole；Power transmission shaft lower end is provided with screw thread, loading head
Middle position is provided with inner bolt hole, threadeds with loading head in power transmission shaft lower end.
The multi-functional testing machine of window handle the most according to claim 7, it is characterised in that: power transmission shaft
Locking nut it is provided with between lower end and loading head.
9. according to the multi-functional testing machine of window handle described in any one of claim 1-8, it is characterised in that:
Oscillating cylinder is semi-annular, and it is externally provided with cylinder head, and oscillating cylinder is by cylinder axle sleeve and " 7 " font
Drive link montant lower end connects；Rotary shaft between oscillating cylinder with cylinder axle sleeve is flexibly connected by keyway.
10., according to the multi-functional testing machine of window handle described in any one of claim 1-8, its feature exists
In: also including counterweight frame or Weight box, counterweight is arranged on counterweight frame or in Weight box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410485669.4A CN104215447B (en) | 2014-09-22 | 2014-09-22 | The multi-functional testing machine of window handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410485669.4A CN104215447B (en) | 2014-09-22 | 2014-09-22 | The multi-functional testing machine of window handle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104215447A CN104215447A (en) | 2014-12-17 |
| CN104215447B true CN104215447B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410485669.4A Active CN104215447B (en) | 2014-09-22 | 2014-09-22 | The multi-functional testing machine of window handle |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682579B (en) * | 2017-10-17 | 2024-03-15 | 高康 | Automatic detection equipment for testing door and window handles |
| CN107727381B (en) * | 2017-10-24 | 2024-05-10 | 亚萨合莱国强（山东）五金科技有限公司 | Detection device for repeated opening and closing test of handle for transmission mechanism |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008022466B4 (en) * | 2007-05-07 | 2014-02-20 | Pax Ag | Device for testing a movement of a drive element |
| CN203231888U (en) * | 2013-05-03 | 2013-10-09 | 上海建科检验有限公司 | Fatigue test device for building hardware |
| CN203323998U (en) * | 2013-06-21 | 2013-12-04 | 宁波市产品质量监督检验研究院 | Multifunctional testing apparatus for handle, single-point locking device or transmission locking device |
| CN103411768A (en) * | 2013-08-20 | 2013-11-27 | 浙江八达五金有限公司 | Intelligent lock comprehensive performance tester and testing method thereof |
| CN203490070U (en) * | 2013-10-10 | 2014-03-19 | 中国建材检验认证集团股份有限公司 | Device for testing wind-resistant performance of building window shade |
| CN203785879U (en) * | 2014-03-12 | 2014-08-20 | 广东省肇庆市质量计量监督检测所 | Automatic life tester of door/window handle |
| CN204142482U (en) * | 2014-09-22 | 2015-02-04 | 广东澳利坚建筑五金有限公司 | The multi-functional detection machine of window handle |
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Address after: The second industrial zone Jinping District 515064 in Guangdong province Shantou city 0683 building block Patentee after: Guangdong aolijian Hardware Technology Co. Ltd. Address before: Jinping District 515041 of Guangdong province 06B3 Shantou City Shengping Industrial Zone second plant plots Patentee before: Guangdong Ao Lijian architectural hardware Co., Ltd |
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