CN104155230A - Automobile sealing strip rain test equipment - Google Patents

Automobile sealing strip rain test equipment Download PDF

Info

Publication number
CN104155230A
CN104155230A CN201410413192.9A CN201410413192A CN104155230A CN 104155230 A CN104155230 A CN 104155230A CN 201410413192 A CN201410413192 A CN 201410413192A CN 104155230 A CN104155230 A CN 104155230A
Authority
CN
China
Prior art keywords
sealing strip
riser
rain
clamping plate
horizontal clamping
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.)
Granted
Application number
CN201410413192.9A
Other languages
Chinese (zh)
Other versions
CN104155230B (en
Inventor
纪荣华
姚刚
金涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Rongnan Technology Co.,Ltd.
TAICANG RONGNAN SEALING MEMBER SCIENCE & TECHNOLOGY Co.,Ltd.
WUHAN YINAN RUBBER AND PLASTIC TECHNOLOGY Co.,Ltd.
Original Assignee
Granary Rong Nan Sealing Member Science And Technology Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Granary Rong Nan Sealing Member Science And Technology Ltd filed Critical Granary Rong Nan Sealing Member Science And Technology Ltd
Priority to CN201410413192.9A priority Critical patent/CN104155230B/en
Publication of CN104155230A publication Critical patent/CN104155230A/en
Application granted granted Critical
Publication of CN104155230B publication Critical patent/CN104155230B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Examining Or Testing Airtightness (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

The invention relates to automobile sealing strip rain test equipment. The test equipment comprises a water-receiving work tool body, a water tank with a water tank leakage hole, a spraying head, and a controller. The water-receiving work tool body comprises a work tool plane, a step vertical plate, a square vertical plate, and a bottom plate with a bottom plate leakage hole. The work tool plane is embedded into the groove arranged on the bottom surface of the step vertical plate. A horizontal clamp plate is arranged between the step vertical plate and the square vertical plate. A vertical rotary button and a horizontal adjusting screw rod are arranged on the horizontal clamp plate. One side of the lower end face of the horizontal clamp plate is pressed on one side of the upper end face of the work tool plane, the other side of the lower end face of the horizontal clamp plate is provided with a slide block, and a guide rod goes through the slide block. The controller is provided with a variable-frequency motor and a flow control button. The equipment has the advantages that a rain test can be carried out even if a sealing strip is not installed on a vehicle, the permeability of a sealing strip can be tested in advance, the operation is simple, the test period is short, the compression amount after a sealing strip is installed on a skylight can be stimulated, and thus the test result are more precise.

Description

A kind of weather strip for automobile rain test equipment
Technical field
The present invention relates to sealing strip field of measuring technique, specifically, is a kind of weather strip for automobile rain test equipment.
Background technology
Sealing strip is widely used in the vehicle body positions such as automobile front and back windscreen, car door, vehicle window, initiation cabin, boot, fill up the gap between car body component, there is the functions such as damping, waterproof and dustproof, sound insulation, decoration, driver and conductor and car load are played to maintenance effect.The classification of weather strip for automobile product has various ways, conventionally according to the title, data kind, complex document quantity, operating characteristic etc. at device position (parts), will usually classify.Wherein the title classification according to device position (parts) is the most frequently used mode, and it comprises initiates cabin sealing strip, front and rear windows sealing strip, door frame sealing strip, door weather strip, glass guide way of vehicle door sealing strip, bottom of door dust excluder, the inside and outside sealing strip of car door windowsill, side window sealing strip, Foof weather strip, covering for roofs sealing strip, boot (luggage case) sealing strip etc.
Sealing strip perviousness is an important indicator of vehicle complete vehicle quality.In prior art, the infiltrative equipment of check sealing strip normally will carry out salt fog test after sealing strip entrucking, yet automobile when carrying out salt fog test, due to car conour complex structure, cause, test period large to sealing strip permeance property validation difficulty long, cannot verify in advance.
In sum, it is a kind of simple to operate that assistant officer needs, and test period is short, can verify in advance, without the vehicle rainfall test equipment of assembling test.
Summary of the invention
The object of the invention is for deficiency of the prior art, provide a kind of simple to operate, test period is short, can verify in advance, without the vehicle rainfall test equipment of assembling test.
For achieving the above object, the technical scheme that the present invention takes is:
A weather strip for automobile rain test equipment, described testing equipment is provided with water receiving frock body, tank, the head of drenching with rain, and described tank is provided with tank leak holes; Described water receiving frock body is positioned at tank, and is provided with frock plane, ladder riser, square riser, base plate; Described base plate is provided with base plate leak holes; Described ladder riser and square riser are positioned on base plate; Described ladder riser cross section is stepped appearance, and its bottom surface is provided with groove, and described frock plane is embedded in groove; Between described ladder riser and square riser, be provided with horizontal clamping plate, horizontal clamping plate upper surface is provided with longitudinal knob, and a side pressure of horizontal clamping plate lower surface is in a side of frock plane upper surface, and the opposite side of horizontal clamping plate lower surface is provided with slide block; Described slide block inside is penetrated with guide rod, and described guide rod one end is fixed on square riser, and the other end is fixed on the holder that is positioned at horizontal clamping plate below; The sidewall of the described nearly square riser of horizontal clamping plate is provided with lateral adjustments screw rod, and described lateral adjustments screw rod runs through square riser and stretches out outside square riser, and end connects horizontal knob.
The described head of drenching with rain be positioned at water receiving frock body directly over.
Described testing equipment is also provided with controller, described in drench with rain head be connected with controller, described controller is provided with inverter motor and flow control button.
Described guide rod is provided with two
The invention has the advantages that:
1, adopt sealing strip to carry out salt fog test in frock plane, without testing after entrucking, simple to operate.
2, by inverter motor, control a water flow of drenching with rain, test period is short, can verify in advance sealing strip perviousness.
3, by the tight strip of paper used for sealing of horizontal clamping plate moving clip, simulate the decrement after actual sealing strip and skylight assembling, make test findings more accurate.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of weather strip for automobile rain test equipment structural representation of the present invention.
Accompanying drawing 2 is the water receiving frock body construction schematic diagram in a kind of weather strip for automobile rain test equipment structure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment provided by the invention is elaborated.
The Reference numeral and the ingredient that in accompanying drawing, relate to are as follows:
1. tank 2. water receiving frock bodies
3. 4. controller of drenching with rain
21. frock plane 22. ladder risers
The horizontal clamping plate of 23. square riser 24.
The longitudinal knob of 25. horizontal knob 26.
27. guide rod 28. slide blocks
29. base plate 291. base plate leak holes
292. groove 11. tank leak holes
4. controller 41 inverter motor
42. flow control button 30. holders
31. lateral adjustments screw rods
embodiment 1
Please refer to Fig. 1, Fig. 1 is a kind of weather strip for automobile rain test equipment structural representation of the present invention.Described testing equipment is provided with tank 1, water receiving frock body 2, drench with rain 3 and controller 4.Described tank 1 bottom is provided with tank leak holes 11; Described water receiving frock body 2 is positioned at tank 1 bottom center, is provided with and drenches with rain 3 directly over described water receiving frock body 1; Described drenching with rain 3 is connected with controller 4; Described controller 4 inside are provided with inverter motor 41, and outside is provided with flow control button 42.
Please refer to Fig. 2, Fig. 2 is the water receiving frock body construction schematic diagram in a kind of weather strip for automobile rain test equipment structure of the present invention.Described water receiving frock body 2 is provided with frock plane 21, ladder riser 22, square riser 23, base plate 29; Described base plate 29 is provided with base plate leak holes 291; Described ladder riser 22 and square riser 23 are positioned on base plate 29; Described ladder riser 22 cross sections are stepped appearance, and its bottom surface is provided with groove 292; Described frock plane 21 is embedded in groove 292; Between ladder riser 22 and square riser 23, be provided with horizontal clamping plate 24, horizontal clamping plate 24 upper surfaces are provided with longitudinal knob 26, one side pressure of horizontal clamping plate 24 lower surfaces is in a side of frock plane 21 upper surfaces, the opposite side of horizontal clamping plate 24 lower surfaces is provided with slide block 28, described slide block 28 inside are penetrated with two guide rods 27, described guide rod 27 one end are fixed on square riser 23, and the other end is fixed on the holder 30 that is positioned at horizontal clamping plate 24 belows; The sidewall of described horizontal clamping plate 24 nearly square risers is provided with lateral adjustments screw rod 31, and described lateral adjustments screw rod 31 runs through square riser 23 and stretches out outside square riser 23, and end thread connects horizontal knob 25.
It should be noted that: described frock plane 21 is for placing sealing strip, itself and ladder riser 22 and horizontal clamping plate 24 cooperatively interact sealing strip are clamped, described ladder riser 22 is provided with the stair-stepping facet of differing heights, can test sealing strip dissimilar, differing heights, sealing strip height is different, and the permeance property of its sealing strip is also different, described horizontal knob 25 and lateral adjustments screw rod 31 cooperatively interact, when horizontal knob 25 turns clockwise, horizontal clamping plate 24 move to the direction near sealing strip, for clamping sealing strip, move the decrement of the actual sealing strip of simulation and skylight assembling by horizontal clamping plate 24, described slide block 28 coordinates with longitudinal knob 26, for regulating the height of horizontal clamping plate 24, described guide rod 27 is provided with two, for limiting direction of motion and the levelness of slide block 28, can guarantee that horizontal clamping plate 24 can contact with sealing strip closely, described lateral adjustments screw rod 31 is in square riser 23, and the precision that clamping plate 24 horizontal directions of also can further improving the standard regulate, guarantees the close contact of horizontal clamping plate 24 and sealing strip, described base plate leak holes 291 is discharged for the water being detained on base plate 29, described tank 1 is for the mark amount of drenching with rain, described drenching with rain 3 has standard specification diameter, described in 3 diameter specifications of drenching with rain different, its area difference of drenching with rain, not identical to the test findings of sealing strip yet, described drenching with rain 3 has certain altitude, drenches with rain 3 highly different, and it is also not identical that its water column produces pressure intensity on sealing strip, and water column pressure intensity difference sealing strip is not identical to the infiltration capacity of water yet, described flow control button 42 is for controlling 3 the flow of drenching with rain, the uninterrupted difference of drenching with rain, and sealing strip water resistant impulsive force is also different, and test is also had a certain impact, described tank 1 is provided with tank leak holes 11, for discharging the water of tank 1, described tank leak holes 11 specific dischargies are less than the flow of a water outlet of drenching with rain, in tank 1, existing water flows to like this, there are flowing out again, salt fog test scene after the entrucking of simulated automotive sealing strip under state of nature, when the water level in tank 1 reaches a certain scale, close and drench with rain 3, water in tank 1 flows out from tank leak holes 11 like this, in tank 1, current are complete mouthful, weigh the weight of water receiving frock body 2, the difference of front and back water receiving frock body 2 weight is water absorbing capacitys of sealing strip, by water absorbing capacity, judge the permeance property of sealing bar, described inverter motor 41 cooperatively interacts with flow control button 42, controls 3 the water flow of drenching with rain, described controller 4 effects are control water outlet and measure the water yield, and its concrete structure is not limited only to embodiments of the invention, adopts other device that possesses this function in prior art all can.
Sealing strip rain test equipment using method of the present invention is: first, sealing strip is placed in frock plane 21; Then by the horizontal longitudinally button 25 of rotation, make horizontal clamping plate 24 press seal bars, and the slide block on sliding guide 27 28 move to longitudinal knob 26 under, then longitudinally knob 26 coordinates with slide block 28, and horizontal clamping plate 24 positions are fixed; Select in addition suitable test compression height, and adjust sealing strip and make it the compression height needing in test, weigh the weight of water receiving frock body 2 before drenching with rain, and water receiving frock body 2 is placed in tank; Then drench with rain 3 diameter needed 3 height of drenching with rain of fixation test of selecting test to need, set the amount of drenching with rain; 3 water flow of drenching with rain of finally selecting sealing strip test to need, unlatching drenches with rain 3, test duration is 3 minutes, when the water level in tank 1 arrives the needed amount of drenching with rain of test, close the head of drenching with rain, after the water in tank 1 all flows out, weigh the weight of water receiving frock body 2, the difference of the weight of water receiving frock body 2 front and back is water absorbing capacitys of sealing strip, and the correlation parameter of the weight absorbing water by sealing strip and sealing strip self can judge the permeance property of sealing strip.Through a kind of sealing strip is tested, found that when the test duration is 3 minutes, the water absorbing capacity of its sealing strip is 6.5*10 -5/ m 3/ minute, the sealing strip infiltration capacity of this specification is 6.5*10 -5/ m 3/ minute, and sealing strip test period after entrucking is generally 10 days, the present invention's test only needs 3 minutes, has shortened the test duration greatly.Sealing strip of the present invention is tested the equipment of drenching with rain, and adopts sealing strip to carry out salt fog test in frock plane, without testing after entrucking, simple to operate; By inverter motor 41, control 3 water flow of drenching with rain, test period is short, can verify in advance sealing strip perviousness; By the tight strip of paper used for sealing of horizontal clamping plate moving clip, simulate the decrement after actual sealing strip and skylight assembling, make test findings more accurate.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the inventive method; can also make some improvement and supplement, these improvement and supplement and also should be considered as protection scope of the present invention.

Claims (4)

1. a weather strip for automobile rain test equipment, described testing equipment is provided with water receiving frock body, tank, the head of drenching with rain, and it is characterized in that, and described tank is provided with tank leak holes; Described water receiving frock body is positioned at tank, and is provided with frock plane, ladder riser, square riser, base plate; Described base plate is provided with base plate leak holes; Described ladder riser and square riser are positioned on base plate; Described ladder riser cross section is stepped appearance, and its bottom surface is provided with groove, and described frock plane is embedded in groove; Between described ladder riser and square riser, be provided with horizontal clamping plate, horizontal clamping plate upper surface is provided with longitudinal knob, and a side pressure of horizontal clamping plate lower surface is in a side of frock plane upper surface, and the opposite side of horizontal clamping plate lower surface is provided with slide block; Described slide block inside is penetrated with guide rod, and described guide rod one end is fixed on square riser, and the other end is fixed on the holder that is positioned at horizontal clamping plate below; The sidewall of the described nearly square riser of horizontal clamping plate is provided with lateral adjustments screw rod, and described lateral adjustments screw rod runs through square riser and stretches out outside square riser, and end connects horizontal knob.
2. testing equipment according to claim 1, is characterized in that, the described head of drenching with rain be positioned at water receiving frock body directly over.
3. testing equipment according to claim 1, is characterized in that, described testing equipment is also provided with controller, described in drench with rain head be connected with controller, described controller is provided with inverter motor and flow control button.
4. testing equipment according to claim 1, is characterized in that, described guide rod is provided with two.
CN201410413192.9A 2014-08-20 2014-08-20 A kind of weather strip for automobile rain test equipment Active CN104155230B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410413192.9A CN104155230B (en) 2014-08-20 2014-08-20 A kind of weather strip for automobile rain test equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410413192.9A CN104155230B (en) 2014-08-20 2014-08-20 A kind of weather strip for automobile rain test equipment

Publications (2)

Publication Number Publication Date
CN104155230A true CN104155230A (en) 2014-11-19
CN104155230B CN104155230B (en) 2016-09-14

Family

ID=51880790

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410413192.9A Active CN104155230B (en) 2014-08-20 2014-08-20 A kind of weather strip for automobile rain test equipment

Country Status (1)

Country Link
CN (1) CN104155230B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614268A (en) * 2015-02-02 2015-05-13 青岛科标检测股份有限公司 Scouring testing machine
CN113029891A (en) * 2019-12-24 2021-06-25 山西大地华基建材科技有限公司 Demonstration device for water permeability of reaction permeable brick

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000007876A1 (en) * 2020-04-14 2021-10-14 Myfamily S R L System for qualifying and testing tissue samples

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1078370A (en) * 1996-09-04 1998-03-24 Nisshin Steel Co Ltd Defect part detecting method of tank bottom plate
CN1687737A (en) * 2005-05-12 2005-10-26 上海交通大学 Equipment for testing compression load and displacement of scalling rope for cars
CN101285747A (en) * 2008-04-25 2008-10-15 哈尔滨工业大学 In situ nanometer stretching experiment measuring detection device
CN101349607A (en) * 2008-08-05 2009-01-21 铁道部运输局 Rail vehicle whole tightness test method and system
CN101713695A (en) * 2009-11-16 2010-05-26 中国人民解放军空军装备研究院雷达与电子对抗研究所 Rain showering and rain dropping strength adjusting device for rain showering and rain dropping test
CN201508274U (en) * 2009-08-21 2010-06-16 浙江布朗汽车天窗有限公司 Air tightness testing board
CN201795927U (en) * 2010-09-26 2011-04-13 南车青岛四方机车车辆股份有限公司 Plugging device for rain test of whole railway vehicle
CN102109404A (en) * 2009-12-25 2011-06-29 上海奇谋能源技术开发有限公司 Quality inspection device for sealing strip of automobile skylight
CN202335437U (en) * 2011-10-23 2012-07-18 温州市质量技术监督检测院 Moisture absorption and moisture permeability testing instrument for finished shoes
CN202757735U (en) * 2012-07-30 2013-02-27 惠州住成电装有限公司 Grommet waterproof test apparatus
CN103048095A (en) * 2012-12-25 2013-04-17 上海金亭汽车线束有限公司 Water immersion test tool for rubber part
CN204044038U (en) * 2014-08-20 2014-12-24 太仓荣南密封件科技有限公司 A kind of weather strip for automobile salt fog test frock

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1078370A (en) * 1996-09-04 1998-03-24 Nisshin Steel Co Ltd Defect part detecting method of tank bottom plate
CN1687737A (en) * 2005-05-12 2005-10-26 上海交通大学 Equipment for testing compression load and displacement of scalling rope for cars
CN101285747A (en) * 2008-04-25 2008-10-15 哈尔滨工业大学 In situ nanometer stretching experiment measuring detection device
CN101349607A (en) * 2008-08-05 2009-01-21 铁道部运输局 Rail vehicle whole tightness test method and system
CN201508274U (en) * 2009-08-21 2010-06-16 浙江布朗汽车天窗有限公司 Air tightness testing board
CN101713695A (en) * 2009-11-16 2010-05-26 中国人民解放军空军装备研究院雷达与电子对抗研究所 Rain showering and rain dropping strength adjusting device for rain showering and rain dropping test
CN102109404A (en) * 2009-12-25 2011-06-29 上海奇谋能源技术开发有限公司 Quality inspection device for sealing strip of automobile skylight
CN201795927U (en) * 2010-09-26 2011-04-13 南车青岛四方机车车辆股份有限公司 Plugging device for rain test of whole railway vehicle
CN202335437U (en) * 2011-10-23 2012-07-18 温州市质量技术监督检测院 Moisture absorption and moisture permeability testing instrument for finished shoes
CN202757735U (en) * 2012-07-30 2013-02-27 惠州住成电装有限公司 Grommet waterproof test apparatus
CN103048095A (en) * 2012-12-25 2013-04-17 上海金亭汽车线束有限公司 Water immersion test tool for rubber part
CN204044038U (en) * 2014-08-20 2014-12-24 太仓荣南密封件科技有限公司 A kind of weather strip for automobile salt fog test frock

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
孔庆华 等: "汽车淋雨试验装置的设计与计算", 《林业机械与木工设备》 *
李玲 等: "汽车淋雨试验工艺设备及发展", 《汽车工艺与材料》 *
陈小平 等: "汽车淋雨试验室设计", 《机械》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614268A (en) * 2015-02-02 2015-05-13 青岛科标检测股份有限公司 Scouring testing machine
CN113029891A (en) * 2019-12-24 2021-06-25 山西大地华基建材科技有限公司 Demonstration device for water permeability of reaction permeable brick

Also Published As

Publication number Publication date
CN104155230B (en) 2016-09-14

Similar Documents

Publication Publication Date Title
CN204044038U (en) A kind of weather strip for automobile salt fog test frock
CN104155230A (en) Automobile sealing strip rain test equipment
CN205426738U (en) OGFC rainfall simulation's device and water permeability tester
CN106769775B (en) Device and method for detecting water seepage of side seepage-preventing asphalt pavement under dynamic water pressurization
CN105280004A (en) Automobile driver early warning device based on bridge opening ponding water
CN104502270A (en) Direct shear apparatus and determination method for determining soil-rib interface friction coefficient
CN104141488A (en) Method utilizing C29 sterane isomerization parameters for representing oil-gas migration
CN106092488B (en) A kind of automotive seat shock table
CN104155061B (en) Water sealing performance testing mechanism for automotive sunroof
CN207351668U (en) A kind of automobile vehicle window sealing strip slides durable simulation test device
CN104390562A (en) Skylight surface error detection device
CN107525662B (en) Automobile window sealing strip sliding durability simulation test device
KR20200070586A (en) Waterproof material performance measuring device corresponding to the behavior
CN104236839A (en) Fire extinguisher impact test device
RU2613364C1 (en) Method of drilling tool geological steering and its trajectory control, while wells drilling in the specified direction
CN106529743A (en) Gas pressure rapid determination method for coal lane tunneling working face
CN210894698U (en) Range finder hangs dress pole and hangs dress subassembly
CN208399331U (en) Standard analog device for simulated roadway infiltration
CN207480530U (en) Take turns side damper angle of inclination monitor station
CN204064603U (en) A kind of flame snuffer impact test apparatus
CN204649377U (en) A kind of vehicle impact testing dummy breast calibration facility
CN106052567A (en) Light curtain measuring device and method for vehicle exterior dimension
CN105300616A (en) Waterproof test method using transverse seam of grout layer and rubber waterstop strip
CN204705351U (en) The horizontal elevation control device of door and window
CN210894699U (en) Distancer connecting device and hanging subassembly

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20170207

Address after: Fengxian District Jinhui town Kim highway 201403 Shanghai No. 8029 building 6 No. 1 workshop

Patentee after: Shanghai Rong Nan Technology Co., Ltd.

Patentee after: Granary Rong Nan sealing member Science and Technology Ltd.

Patentee after: Wuhan Yinan Plastics Technology Co Ltd

Address before: 215412 Jiangsu city of Suzhou province Taicang City Lu Du Zhen Fei Hu Lu Lianda Industrial Zone No. 11

Patentee before: Granary Rong Nan sealing member Science and Technology Ltd.

TR01 Transfer of patent right
CP01 Change in the name or title of a patent holder

Address after: Workshop 1, building 6, No. 8029, JINDA Road, Jinhui Town, Fengxian District, Shanghai, 201403

Patentee after: Shanghai Rongnan Technology Co.,Ltd.

Patentee after: TAICANG RONGNAN SEALING MEMBER SCIENCE & TECHNOLOGY Co.,Ltd.

Patentee after: WUHAN YINAN RUBBER AND PLASTIC TECHNOLOGY Co.,Ltd.

Address before: Workshop 1, building 6, No. 8029, JINDA Road, Jinhui Town, Fengxian District, Shanghai, 201403

Patentee before: SHANGHAI RONGNAN TECHNOLOGY Co.,Ltd.

Patentee before: TAICANG RONGNAN SEALING MEMBER SCIENCE & TECHNOLOGY Co.,Ltd.

Patentee before: WUHAN YINAN RUBBER AND PLASTIC TECHNOLOGY Co.,Ltd.

CP01 Change in the name or title of a patent holder