CN114563142B - Sealing strip tightness detection device for vehicle - Google Patents
Sealing strip tightness detection device for vehicle Download PDFInfo
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- CN114563142B CN114563142B CN202210155846.7A CN202210155846A CN114563142B CN 114563142 B CN114563142 B CN 114563142B CN 202210155846 A CN202210155846 A CN 202210155846A CN 114563142 B CN114563142 B CN 114563142B
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- sealing strip
- upper cover
- cover body
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- sealing
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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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
- G01M13/00—Testing of machine parts
- G01M13/005—Sealing rings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to the technical field of vehicle sealing, in particular to a device for detecting the tightness of a vehicle sealing strip. Including mounting plate, be equipped with down the cavity on the mounting plate upper surface, be equipped with elastic sealing face on the medial surface of cavity down, be equipped with the upper cover body directly over the cavity down, be equipped with sealing strip installation department on the surface of upper cover body orientation cavity down, be equipped with the elevating system who is used for controlling upper cover body and remove in vertical direction on the both sides face on upper cover body length direction, all be equipped with connecting plate and piston plate on the both sides face of upper cover body width direction, the connecting plate is connected the piston plate on the side of upper cover body, be equipped with piston cavity and connecting pipe corresponding with piston plate position on the cavity down, the connecting pipe communicates the lower part of piston cavity with the inside of cavity down. The technical scheme is used for simulating the installation environment of the sealing strip on the vehicle and carrying out a sealing effect detection test on the sealing strip, so that the sealing effect of the sealing strip on the vehicle is ensured.
Description
Technical Field
The invention relates to the technical field of vehicle sealing, in particular to a device for detecting the tightness of a vehicle sealing strip.
Background
The sealing strip is a common sealing element on a vehicle and is mainly used for sealing a sealing surface of a vehicle body, for example, a vehicle door sealing strip, the sealing strip is arranged on a vehicle door or a vehicle body and used for sealing a combined surface of the vehicle body and the vehicle door so as to play roles of water resistance, sound insulation, vibration reduction and the like, and the quality of the sealing performance of the sealing strip is an important standard of the quality of the sealing strip.
In the prior art, the detection of sealing performance of the sealing strip is mainly a rain test, taking the sealing strip mounted on an automobile as an example, and after the whole automobile is assembled and debugged to be qualified, the sealing strip can enter a rain room to carry out the rain test. However, the rain test is the last test performed after the vehicle completes the assembly of all the systems of the whole vehicle and is detected to be qualified, and particularly when mass vehicles are produced, if the rain test only finds that a large number of sealing strips of the vehicles cannot achieve the expected effect, the assembly and the production period of the vehicles can be influenced.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a vehicle sealing strip tightness detection device which is used for simulating the installation environment of a sealing strip on a vehicle and performing a sealing effect detection test on the vehicle so as to ensure the sealing effect of the sealing strip on the vehicle.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a vehicle sealing strip leakproofness detection device, includes mounting plate, be equipped with down the cavity on the mounting plate upper surface, be equipped with elastic sealing face on the medial surface of cavity down, be equipped with the upper cover body directly over the cavity down, be equipped with sealing strip installation department on the upper cover body towards the surface of cavity down, be equipped with the elevating system who is used for controlling upper cover body and remove on vertical orientation on the both sides face on upper cover body length direction, all be equipped with connecting plate and piston plate on the both sides face of upper cover body width direction, the connecting plate is connected the piston plate on the side of upper cover body, be equipped with piston chamber and the connecting pipe that corresponds with piston plate position on the cavity down, the connecting pipe communicates the lower part of piston chamber with the inside of cavity down, when sealing strip and elastic sealing face extrusion contact of installation on the sealing strip installation department, the piston plate is located the inside of piston chamber.
The working principle of the technical scheme is as follows:
the sealing strip is firstly arranged on the sealing strip mounting part, then the upper cover body moves downwards under the action of the sliding table, so that the sealing strip is in tight contact with the surface of the elastic sealing surface, and the elastic sealing surface can deform to a certain extent in the process of being in tight contact with the elastic sealing surface so as to simulate the contact pressure between the sealing strip and the sealing surface on the vehicle, at the moment, the sealing strip has the sealing effect, however, the piston can move in the piston cavity at the moment, gas is extruded into the lower cavity, the gas pressure in the lower cavity is increased, and at the moment, whether the gas in the lower cavity overflows or not can be judged only through vision or hearing manually, so that the sealing effect of the sealing strip can be judged.
Further limited, elevating system includes the slip table, the one end of slip table is fixed in on the mounting plate, the slider of slip table is connected with the side of upper cover body can be dismantled.
Further limited, the lower cavity is provided with a barometer for measuring the air pressure in the cavity, and the sealing effect of the sealing strip can be accurately judged by measuring the pressure change in the lower cavity through the barometer.
Further limiting, the elastic sealing surface is an elastic piece, one side surface of the elastic piece is fixedly connected with the lower cavity, and the other side surface of the elastic piece is obliquely upwards arranged.
Further limiting, the inside of piston chamber is equipped with the elasticity gasbag, the gas vent of elasticity gasbag and the one end intercommunication that the connecting pipe is located the piston intracavity, be equipped with the elevator motor who drives the piston board and reciprocate on the connecting plate, its beneficial lies in that through motor drive piston board move down extrusion gasbag to the downthehole gas injection of cavity, the size of the gas injection volume of control that can be better promptly control gas pressure in the cavity down, makes the sealed ambient pressure of sealing strip adjustable, and the gasbag gas injection can also avoid sealing failure between piston board and the piston chamber simultaneously, the gas leakage phenomenon that causes.
In an optional mode, sealing strip installation department sets up in the inboard at upper cover body edge, and the projection on vertical direction is close to the inboard sideline of elastic sealing face on the sealing strip installation department, when elevation structure control upper cover body and lower cavity lid, form interior cavity and outer cavity respectively in the inside and outside both sides of sealing strip, the upper surface edge department of upper cover body is equipped with the aqua storage tank, and is located the upper cover body surface in the aqua storage tank and offer a plurality of holes of permeating water that communicate with the outer cavity outside the sealing strip, and be equipped with the wash port on the lower cavity, be equipped with automatically controlled drain valve on the wash port, its advantage lies in, through the water injection to the aqua storage tank in, make water flow into outer cavity and sealing strip contact through permeating water hole, can simulate the rain system in the sealing strip seal test, through observing whether water gets into in the lower cavity after a period, can further judge the sealing performance of sealing strip.
Further limited, the water storage tank is internally provided with a liquid level meter, and the liquid level meter is electrically connected with the water pump and the lifting mechanism.
Further limiting, a water storage tank is arranged below the lower cavity, the water storage tank is fixed on the mounting bottom plate, a water pump is arranged in the water storage tank, a water outlet end of the water pump is provided with a water drain pipe, one end of the water drain pipe is connected with the water pump, and the other end of the water drain pipe is communicated with the water storage tank.
Further defined, the drain pipe is a rubber hose, which is beneficial in that it does not interfere with the movement of the upper cover.
Further limiting, the elastic sealing surface in the outer cavity is provided with a water permeable hole communicated with the water storage tank, and the device has the advantages of further improving the effect of simulating rainwater dripping in the natural environment and improving the collecting effect of the rainwater.
The technical effects obtained by the invention are as follows:
(1) The sealing performance of the sealing strip on the vehicle can be detected before the sealing strip is assembled on the vehicle by simulating the relation between the sealing surface and the installation part of the sealing strip on the vehicle, and then the sealing strip with qualified sealing performance is assembled on the vehicle, so that the assembly qualification rate of the sealing strip on the vehicle can be improved. (2) The device drives the upper cover body to move towards the lower cavity through the lifting mechanism, so that the sealing strip on the sealing strip mounting part is gradually and tightly contacted with the elastic sealing surface, the piston plate sends air into the lower cavity, and the sealing performance of the sealing strip can be detected in a pressurizing mode, so that the device is novel in design and simple in structure.
Drawings
FIG. 1 is a schematic perspective view of the present device;
FIG. 2 is a schematic top view of the present apparatus;
FIG. 3 is a schematic elevation sectional view of the present device;
FIG. 4 is a schematic perspective view of the lower chamber of the device;
FIG. 5 is a schematic perspective view of the upper cover of the device;
FIG. 6 is a schematic cross-sectional view of the present device with the sealing strip in contact with the resilient sealing surface;
fig. 7 is a schematic view in partial cross-section at a in fig. 6.
Reference numerals of the drawings
The water pump comprises an installation bottom plate 1, a lower cavity 2, an elastic sealing surface 3, a water permeable hole 4, a water drainage hole 5, a piston cavity 6, a connecting pipe 7, an upper cover 8, a water storage tank 9, a piston plate 10, a connecting plate 11, a sliding table 12, a sliding block 13, a water storage tank 14, a sealing strip 15, a water pump 16 and a water drainage pipe 17.
Detailed Description
The following is a further detailed description of the embodiments:
as shown in fig. 1 to 7, it is to be noted in advance that the device further comprises a control system for controlling the coordinated movement of each component of the device, specifically, a single chip microcomputer, the specific structure part comprises a mounting bottom plate 1, a lower cavity 2 is arranged on the upper surface of the mounting bottom plate 1, an elastic sealing surface 3 equivalent to the sealing surface of a vehicle upper sealing strip 15 is arranged on the inner side surface of the lower cavity 2, the elastic sealing surface 3 consists of a sealing contact surface and a lower elastic body, such as elastic rubber, an upper cover 8 is arranged right above the lower cavity 2, a sealing strip mounting part equivalent to the mounting part of the vehicle upper sealing strip 15 is arranged on the surface of the upper cover 8 facing the lower cavity 2, such as a sheet metal surface, lifting mechanisms for controlling the upper cover 8 to move in the vertical direction are arranged on two side surfaces of the length direction of the upper cover 8, a connecting plate 11 and a piston plate 10 are arranged on two side surfaces of the width direction of the upper cover 8, the connecting plate 11 connects the piston plate 10 on the side surface of the upper cover 8, the lower cavity 2 is provided with a connecting pipe 7 and a piston 6 corresponding to the piston plate 10, when the piston plate 10 is in position, the connecting pipe 7 is arranged on the lower cavity 2, and the piston 7 is not in contact with the piston plate 10, and the piston plate 10 is difficult to be in contact with the inner side of the piston plate 10, and the sealing surface of the piston plate 10 is not in contact with the piston cavity 6, and the sealing surface is difficult to be in contact with the inner side of the piston plate 10, and the sealing surface 10.
The working principle of the technical scheme is as follows:
firstly, the sealing strip 15 is installed on the sealing strip installation part, then the upper cover body 8 is moved downwards under the action of the sliding table 12, so that the sealing strip 15 is in close contact with the surface of the elastic sealing surface 3, the elastic sealing surface 3 can generate certain deformation in the process of being in close contact with the sealing strip installation part, the sealing strip 15 has a sealing effect, at the moment, the piston can move in the piston cavity 6, gas is extruded into the lower cavity 2, the air pressure in the lower cavity 2 is increased, at the moment, whether the gas in the lower cavity 2 overflows or not can be judged only by vision or hearing manually, and the sealing effect of the sealing strip 15 can be judged.
It should be noted that, the side of the elastic sealing surface 3 may be slidably and sealingly connected with the side of the lower cavity 2, which has the advantages that the range of downward movement of the upper cover is wider, the more the gas can be injected into the interior, the gas pressure in the sliding table 12 can be controlled according to the movement amount of the sliding table, and the gas pressure change adjustment is realized, and of course, in order to make the sealing strip 15 closely contact with the elastic surface cover 3, a spring should be provided between the elastic sealing surface 3 and the lower cavity 2, and the spring compression provides a pressing force.
The elevating system includes slip table 12, and the one end of slip table 12 is fixed in on mounting plate 1, and the slider 13 of slip table 12 is connected with the side of upper cover body 8 detachably.
The barometer for measuring the air pressure in the lower cavity 2 is arranged on the lower cavity, the display disc of the barometer can be arranged outside the lower cavity, the observation is convenient, the pressure change in the lower cavity 2 is measured through the barometer, and the sealing effect of the sealing strip 15 can be accurately judged.
In an alternative mode, sealing strip installation department sets up in the inboard at upper cover body 8 edge, and the projection on vertical direction is close to the inboard sideline of elastic sealing face 3 on the sealing strip installation department, when elevation structure control upper cover body 8 and lower cavity 2 lid, form interior cavity and outer cavity respectively in the inside and outside both sides of sealing strip 15, interior cavity is in this embodiment referred to sealing strip 15, the cavity that lower cavity 2 middle part and upper cover body 8 middle part are constituteed, outer cavity refers to sealing strip 15, cavity that lower cavity 2 outward flange and upper cover body 8 outward flange are constituteed, upper surface edge department of upper cover body 8 is equipped with aqua storage tank 9, and be located the upper cover body 8 surface of aqua storage tank 9 and offer a plurality of permeable holes 4 that communicate with the outer cavity outside of sealing strip 15, and be equipped with wash port 5 on the lower cavity 2, be equipped with automatically controlled drain valve on the wash port 5, be used for playing the effect, and in not influencing sealed effect, make water flow into outer cavity and 15 contact through sealing strip hole 4, can simulate the cavity that the rain system in 15 seals, whether to observe the cavity after entering into lower cavity 2 after a period of time, can further seal 15 sealing strip performance is sealed.
The water storage tank 9 is internally provided with a liquid level meter, the liquid level meter is electrically connected with the water pump 16 and the lifting mechanism, and the water injection quantity and the water drainage condition in the water tank are judged through the liquid level meter, so that automatic control on the lifting mechanism and the water pump 16 is conveniently realized, for example, the lifting motor is lifted after 5-10 minutes after water in the water storage tank 9 is lost.
The water storage tank 14 is arranged below the lower cavity 2, the water storage tank 14 is fixed on the mounting base plate 1, the water pump 16 is arranged in the water storage tank 14, the water outlet end of the water pump 16 is provided with the water discharge pipe 17, one end of the water discharge pipe 17 is connected with the water pump 16, and the other end of the water discharge pipe 17 is communicated with the water storage tank 9, so that water injection is automated and circulated.
The drain pipe 17 is a rubber hose, and does not interfere with the movement of the upper cover 8.
The elastic sealing surface 3 in the outer chamber is provided with the water permeable hole 4 communicated with the water storage tank 14, namely in the embodiment, the sealing surface, the elastic rubber and the mounting bottom plate 1 are penetrated and provided with the water permeable hole 4 communicated with the water storage tank 14, so that the effect of simulating rainwater dripping in the natural environment is further improved, and the rainwater collecting effect is improved.
The control system may be controlled in a variable manner, one of which is as follows: the control system firstly controls the sliding table 12 to descend so as to enable the upper cover body 8 and the lower cavity body 2 to be buckled, if gas overflow exists, the sliding table is controlled to be stopped manually, if gas overflow exists, the control system controls the electric control drain valve to be opened after 3 minutes, the electric control drain valve to be closed after gas is discharged, then the control system controls the water pump 16 to be controlled to fill water, when the liquid level meter detects that water in the water storage tank 9 reaches a designated height, the water pump stops filling water, the water level is lower than the set height, water continues filling water, after the circulation is performed for 3 times, standing is performed for 10-15 minutes, the control system controls the sliding table 12 to reset, whether water is filled into the sliding table is observed, the sealing performance detection of the whole sealing strip 15 is completed, the sealing performance detection of the sealing strip 15 can be further improved through the air pressure detection of the inner side surface of the sealing strip and the water seepage detection of the outer side surface of the sealing strip 15, and the sealing strip 15 with flaws is prevented from flowing into a vehicle assembly line.
Example 2
Example 3
The difference between the embodiment 3 and the embodiment 1 is that the design manner of the elastic sealing surface is different, in this embodiment, the elastic sealing surface 3 is preferably an elastic sheet, one side surface of the elastic sheet is fixedly connected with the lower cavity 2, the other side surface of the elastic sheet is obliquely upward, the sealing strip 15 and the elastic sheet which is obliquely upward are in close contact with each other from contact to the close contact, under the elastic action of the elastic sheet, both the sealing strip 15 and the elastic sheet are in close contact with each other, the moving distance of the piston plate 10 is increased, the gas injection effect is improved, meanwhile, the contact effect of the sealing strip 15 is improved, the phenomenon of gas leakage from the gap between the sealing strip 15 and the water storage tank 14 is avoided, the sealing effect of the sealing strip 15 is more accurate, and meanwhile, when the upper cover 8 moves upward, the elastic sheet is reset to be upward inclined, so that water is not easy to enter the lower cavity 2, and misjudgment on the detection result is avoided, and at the moment, it is easy to understand that the water flows into the lower cavity 2, and the water permeable hole 4 on the elastic sheet is communicated with the water storage tank 14 through a small hose.
It should be noted in advance that, in the present invention, unless explicitly specified and limited otherwise, terms such as "mounted," "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing is merely exemplary embodiments of the present invention, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (9)
1. The utility model provides a vehicle sealing strip tightness detection device which is characterized in that, includes the mounting plate, be equipped with the lower cavity on the mounting plate upper surface, be equipped with the elastic sealing face on the medial surface of lower cavity, be equipped with the upper cover body directly over the lower cavity, be equipped with sealing strip installation department on the surface of upper cover body towards the lower cavity, be equipped with the elevating system that is used for controlling upper cover body and moves in vertical direction on the both sides face on upper cover body length direction, all be equipped with connecting plate and piston plate on the both sides face of upper cover body width direction, the connecting plate is connected the piston plate on the side of upper cover body, be equipped with piston chamber and connecting pipe that corresponds with piston plate position on the lower cavity, the connecting pipe communicates the lower part of piston chamber with the inside of lower cavity, when sealing strip and elastic sealing face extrusion contact of sealing strip installation department on the upper cover body, the piston plate is located the inside of piston chamber;
the sealing strip installation department sets up in the inboard at upper cover body edge, and the projection on vertical direction is close to the inboard sideline of elastic sealing face on the sealing strip installation department, when elevating system control upper cover body and lower cavity lid, form interior cavity and outer cavity respectively in the inside and outside both sides of sealing strip, the upper surface edge department of upper cover body is equipped with the aqua storage tank, and is located the upper cover body surface of aqua storage tank and seted up a plurality of holes of permeating water with the outer cavity intercommunication in the sealing strip outside, and is equipped with the wash port on the lower cavity, be equipped with automatically controlled drain valve on the wash port.
2. The sealing strip tightness detection device for vehicles according to claim 1, wherein the lifting mechanism comprises a sliding table, one end of the sliding table is fixed on the mounting bottom plate, and a sliding block of the sliding table is detachably connected with the side face of the upper cover body.
3. The sealing strip tightness detection device for vehicles according to claim 1, wherein a barometer for measuring the air pressure inside the cavity is arranged on the lower cavity.
4. The device for detecting the tightness of the sealing strip for the vehicle according to claim 1, wherein the elastic sealing surface is an elastic sheet, one side surface of the elastic sheet is fixedly connected with the lower cavity, and the other side surface of the elastic sheet is obliquely upwards arranged.
5. The device for detecting the tightness of the sealing strip for the vehicle according to claim 1, wherein an elastic air bag is arranged in the piston cavity, an air outlet of the elastic air bag is communicated with one end of the connecting pipe positioned in the piston cavity, and a lifting motor for driving the piston plate to move up and down is arranged on the connecting plate.
6. The sealing strip tightness detection device for vehicles according to claim 1, wherein a liquid level meter is arranged in the water storage tank, and the liquid level meter is electrically connected with the water pump and the lifting mechanism.
7. The device for detecting the tightness of the sealing strip for the vehicle according to claim 1, wherein a water storage tank is arranged below the lower cavity, the water storage tank is fixed on the mounting base plate, a water pump is arranged in the water storage tank, a water outlet end of the water pump is provided with a water drain pipe, one end of the water drain pipe is connected with the water pump, and the other end of the water drain pipe is communicated with the water storage tank.
8. The weather strip tightness detecting apparatus for vehicle as claimed in claim 7, wherein the drain pipe is a rubber hose.
9. The device for detecting the tightness of the sealing strip for the vehicle according to claim 7, wherein the elastic sealing surface in the outer cavity is provided with a water permeable hole communicated with the water storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210155846.7A CN114563142B (en) | 2022-02-21 | 2022-02-21 | Sealing strip tightness detection device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210155846.7A CN114563142B (en) | 2022-02-21 | 2022-02-21 | Sealing strip tightness detection device for vehicle |
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| CN114563142A CN114563142A (en) | 2022-05-31 |
| CN114563142B true CN114563142B (en) | 2023-05-16 |
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| CN202210155846.7A Active CN114563142B (en) | 2022-02-21 | 2022-02-21 | Sealing strip tightness detection device for vehicle |
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| CN118549118A (en) * | 2024-06-03 | 2024-08-27 | 浙江卓能实业有限公司 | Sealing capability detection device of sealing strip |
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| CN114563142A (en) | 2022-05-31 |
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