CN211121834U - Comprehensive detection device for detecting sealing performance of sealing material - Google Patents

Abstract

The utility model discloses a detect sealing material sealing performance's comprehensive testing device, box body, the lid that closes at the box body opening part including the upper portion opening part is equipped with the joint anchor ring are equipped with the pneumatic joint that can be connected with high pressurized air source on the box body lateral wall, the quick-operation joint of pneumatic joint for having the check valve, pneumatic joint passes through the connecting pipe and connects on the lateral wall of box body, is connected with the barometer on the connecting pipe, is equipped with the cooperation gap between box body opening joint anchor ring and lid lower surface, is equipped with the sealing member of making by the sealing material that needs detect in the cooperation gap and is used for injecing the limit structure of cooperation gap size, is connected through fastening screw between lid and the box body. The utility model discloses both can show the kind that reduces detection device to reduce the detection cost, simplify the testing procedure, avoid appearing detection error.

Description

Comprehensive detection device for detecting sealing performance of sealing material

Technical Field

The utility model relates to a detection device technical field, concretely relates to detect sealing material sealing performance's comprehensive testing device.

Background

In the manufacturing process of automobiles, a plurality of sealing elements are needed, such as windows, front and rear windshields and the like, and the existing sealing elements are usually made of rubber-based or foaming-based elastic sealing materials or coated with paste-like fluid-based sealing glue, and after the sealing glue is cured, an elastic strip similar to rubber is formed to meet the requirement of air tightness or water tightness between the sealing glue and the rubber. In order to ensure that the sealing performance of the sealing material can meet the design requirements of automobiles, air tightness or water tightness detection is required for all sealing materials.

In the prior art, it is common to test directly parts made of the sealing material to be tested, for example, sealing rings or sealing strips made of rubber. Because the shape and the size of the sealing elements on the automobile are different, a set of detection device is difficult to detect the sealing performance of all the sealing elements, and only a specific detection device can be arranged aiming at a specific sealing element, so that the detection cost is increased, and the detection trouble is caused. Problems also easily occur that the detection result is affected by the mismatch of the detection device and the seal to be detected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the auto industry and detecting device kind model that exists when detecting the sealing performance of sealing material many, detect with high costs, detection efficiency is low to the problem of mistake appears easily provides a comprehensive detection device who detects sealing material sealing performance, both can show the kind that reduces detection device, thereby reduces the detection cost, simplifies the detection procedure, avoids appearing the detection mistake.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a detect sealing material sealing performance's comprehensive testing device, includes that upper portion opening part is equipped with box body, the lid of joint anchor ring and closes the lid at the box body opening part, is equipped with the pneumatic joint that can be connected with high pressurized air source on the box body lateral wall, pneumatic joint is for having the quick-operation joint of check valve, pneumatic joint passes through the connecting pipe and connects on the lateral wall of box body, is connected with the barometer on the connecting pipe, is equipped with the cooperation gap between box body opening joint anchor ring and lid lower surface, is equipped with the sealing member of making by the sealing material that needs detect in the cooperation gap and is used for injecing the limit structure of cooperation gap size, is connected through.

Firstly, the utility model discloses a be equipped with the lid on the box body to can form a cavity that is used for testing sealing material leakproofness. When the sealing performance of a certain sealing material needs to be detected, the sealing material can be cut into an annular sealing sheet matched with the joint ring surface, then the annular sealing sheet is placed in a matching gap between the opening joint ring surface of the box body and the lower surface of the box cover, the box cover and the box body are tightly connected through fastening screws, and a sealed cavity is formed. At the moment, a high-pressure gas source is connected to the pneumatic connector on the side wall of the box body, and high-pressure gas can enter the sealed cavity through the pneumatic connector. When the pressure displayed by the barometer reaches the specified test air pressure, the air supply can be stopped, the high-pressure air source is removed, and the one-way valve in the pneumatic connector can prevent the high-pressure air in the sealing cavity from leaking outwards. After the set test time, the reading of the barometer can be observed, if the reading shows that the air pressure drops in the specified range, the sealing performance of the sealing material is qualified, otherwise, the sealing performance of the sealing material can be judged to be unqualified.

It should be noted that the sealing material to be tested may be unified into a sheet shape, and then the sheet is manually cut into a desired ring-shaped sealing sheet according to the shape of the case body and placed between the case cover and the united body to test the sealing performance thereof. In addition, the fluid sealant to be tested can be coated on the joint ring surface, and after the sealant is cured and forms a sealing strip, the box cover is closed to carry out the tightness test. That is to say, the utility model is suitable for a different grade type, the leakproofness of the sealing material of different varieties detects, can show the kind that reduces detection device to reduce the detection cost, simplify the detection procedure, avoid appearing detection error.

Especially, the utility model discloses be equipped with the limit structure who is used for injecing the cooperation gap size in the cooperation gap, consequently, we can make the cooperation gap of setting for be less than the thickness of annular gasket. When the lid closes the box body to when making the lid compress tightly the annular gasket gradually through fastening screw, limit structure can realize the accurate control of cooperation gap, thereby ensures the unanimity of annular gasket compression volume, and then ensures the unity of testing result, avoids the testing result error because of the nonconformity of compression volume leads to.

Preferably, a plurality of fastening screws in threaded connection with the box body joint ring surface are arranged at the position, close to the edge, of the box cover at intervals, screw through holes are formed in the position, corresponding to the fastening screws, of the sealing element, the limiting structure comprises limiting sleeves arranged in the screw through holes, the fastening screws penetrate through the limiting sleeves and then are in threaded connection with the box body, and the height of each limiting sleeve is smaller than the thickness of the sealing element.

The box cover is fastened through the fastening screws, so that uniform extrusion force can be formed between the box cover and the box body, and the sealing material is uniformly extruded, so that the sealing performance of the sealing material can be accurately detected. Especially, the utility model discloses the downthehole stop sleeve that highly is less than sealing member thickness that sets up of screw at the sealing member, consequently, when we screwed up fastening screw, stop sleeve can accurately inject the size in cooperation gap. It can be understood that different sizes of the fit gap can be conveniently limited by replacing the limit sleeves with different heights so as to adapt to the sealing performance test of different sealing elements. Because whole lid atress is the biggest in fastening screw department when screwing up fastening screw, consequently, the spacing sleeve at this moment can form effectual support to the lid, avoids the lid to appear recessedly in fastening screw department.

Preferably, an outer annular rib and an inner annular rib located inwardly of the outer annular rib are provided on the underside of the lid to form an annular rebate between the inner and outer annular ribs, the seal being located in the annular rebate.

When we place the annular caulking groove with cutting in to the annular gasket and cover the lid, can screw up fastening screw gradually, the annular gasket of this moment receive the extrusion of upper and lower direction and be squashed, correspondingly, its transversely then can form the inflation, owing to receive the interior, outer annular flange block with spacing, make the unable lateral expansion of annular gasket, therefore can ensure the inseparable compaction of gasket to accurately simulate the sealing performance of sealing material in real use scene.

Particularly, when the sealing performance of the fluid sealant needs to be detected, the sealant can be coated in the annular caulking groove, and a regular annular sealing rubber strip can be formed after the sealant is cured so as to accurately detect the sealing effect of the sealant.

Preferably, the sealing element is made of fluid sealant, the limiting structure comprises a plurality of first limiting sleeves and second limiting sleeves, the first limiting sleeves and the second limiting sleeves can be sleeved on the fastening screws, the height of the first limiting sleeves is higher than that of the second limiting sleeves, and the height difference between the first limiting sleeves and the second limiting sleeves is matched with the designed compression amount of the sealing element.

When the sealing performance of the fluid sealant needs to be detected, the box cover can be covered on the box body firstly and is fastened by a part of fastening screws, and the first limiting sleeve is sleeved on the fastening screws and is positioned between the joint ring surfaces of the box cover and the box body, so that a higher fit gap is formed between the joint ring surfaces of the box cover and the box body. And then, injecting the sealant into a matching gap between the box cover and the joint ring surface through a screw through hole which is formed in the box cover and used for penetrating a fastening screw by using a glue gun. When the sealing glue is solidified, a sealing rubber strip with a set height is formed, the fastening screw on the box cover and the box cover are dismounted at the moment, the first limiting sleeve is taken down, the second limiting sleeve is installed, the box cover is fixed by the fastening screw, the matching gap between the box cover and the joint ring surface meets the set requirement, correspondingly, the sealing element at the moment reaches the designed compression amount, and therefore the consistency and the accuracy of the detection result can be ensured.

Preferably, the upper surface of the box cover is hermetically connected with a detachable adapter interface, and the adapter interface is provided with a socket for connecting with a connector to be detected.

The utility model discloses surface sealing is connected with the switching interface on the lid, when we need detect the sealing performance of connector, can connect the connector on the switching interface, can detect the sealing performance of this connector. It can be appreciated that by replacing different adapter interfaces, the sealing performance of different types of connectors can be detected. When the sealing performance of the sealing material needs to be detected, only the adapter interface on the box cover needs to be detached and the upper cover plate is connected in a sealing mode, and therefore the conversion test between the sealing material and the connector is convenient.

Preferably, the side of the joint ring surface of the box body is provided with oppositely arranged lugs, and the pneumatic connector is detachably provided with a sealing plug.

When the waterproof grade of the sealing material or the connector needs to be detected, the whole detection device provided with the sealing material or the connector only needs to be soaked in water. The hangers arranged on the box body in a relative arrangement are convenient to hoist the detection device into the soaking water tank. Particularly, the utility model discloses set up a sealing joint on pneumatic joint to can ensure pneumatic joint's leakproofness, the water pressure when avoiding soaking gets into in the box body through pneumatic joint's check valve. When the waterproof grade detection is finished, the connector can be reused only by erasing the water on the surface of the connector, so that the waste is avoided.

Preferably, the opening of the box body is provided with a flange edge extending transversely, and the upper surface of the flange edge forms the joint ring surface.

In the scheme, the box body can be cast and formed into an integral structure by adopting aluminum alloy, and a smooth joint ring surface is formed by machining, so that the processing of the box body is simplified, the processing cost is reduced, and the strength of the box body and the air tightness of the box cover and the box cover can be ensured.

Therefore, the utility model discloses following beneficial effect has: the detection device can remarkably reduce the types of detection devices, thereby reducing the detection cost, simplifying the detection procedure and avoiding the occurrence of detection errors.

Drawings

Fig. 1 is a schematic view of an exploded structure of the present invention.

Fig. 2 is a schematic structural diagram of the limiting structure.

FIG. 3 is a schematic view of the construction of inner and outer annular ribs.

Fig. 4 is a schematic structural diagram of the present invention with an adapter.

Fig. 5 is a schematic view of a structure of the cartridge.

In the figure: 1. the pneumatic connector comprises a box body 11, a joint ring surface 12, a hanging lug 13, a flange edge 2, a box cover 21, an outer annular rib 22, an inner annular rib 23, a switching interface 231, a plug interface 3, a fastening screw 4, a pneumatic connector 5, a barometer 6, a sealing element 7 and a limiting sleeve.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

As shown in figure 1, the comprehensive detection device for detecting the sealing performance of the sealing material is suitable for detecting various sealing materials (including fluid sealant) used for automobile manufacturing and the sealing performance of connectors needing to be sealed, and specifically comprises a cuboid box body 1 and a box cover 2, wherein the upper part of the box body is provided with an opening, a joint ring surface 11 used for being jointed with the box cover is arranged at the opening, a plurality of screw through holes are arranged at intervals on the edge of the upper surface of the box cover, and fastening screws 3 in threaded connection with the joint ring surface of the box body are arranged in the screw through holes. In addition, the side wall of the box body is also provided with a pneumatic connector 4 which can be connected with a high-pressure air source, the pneumatic connector is connected with the side wall of the box body through a connecting pipe, and the connecting pipe is connected with a barometer 5 to monitor the air pressure in the box body. Preferably, the pneumatic connector can adopt a quick connector with a one-way valve, so that the quick connection with a high-pressure air source is facilitated, and the gas in the box body can be prevented from leaking. In addition, a limit structure for limiting the size of the gap is arranged between the opening joint ring surface of the box body and the lower surface of the box cover, so that a certain matching gap is formed between the joint ring surface and the lower surface of the box cover, and a sealing element 6 made of sealing material to be detected is arranged in the matching gap.

It should be noted that the present invention is applicable to detecting the sealing performance of a sealing material, not for detecting the sealing performance of a specific sealing member. Therefore, prior to testing, a supplier is required to provide a sample of the sealing material to be tested, preferably the sealing material can be made in sheet form.

When the sealing performance of a certain sealing material needs to be detected, a tester can cut the sealing material into an annular sealing sheet matched with the joint ring surface, so that the sealing member is formed, a screw through hole is formed in the position, corresponding to a fastening screw, of the sealing member, then the annular sealing sheet is placed into a matching gap between the opening joint ring surface of the box body and the lower surface of the box cover, the box cover and the box body are tightly connected through the fastening screw, and a sealed cavity is formed. At the moment, a high-pressure gas source is connected to the pneumatic connector on the side wall of the box body, and high-pressure gas can enter the sealed cavity through the pneumatic connector. When the pressure displayed by the barometer reaches the specified test air pressure, the air supply can be stopped, the high-pressure air source is removed, and the one-way valve in the pneumatic connector can prevent the high-pressure air in the sealing cavity from leaking outwards. After the set test time, a small amount of gas leaks at the annular sealing sheet, but the pressure in the box body is reduced, the reading of a barometer can be observed, if the reading shows that the pressure is reduced within a specified range, the sealing performance of the sealing material is qualified, and otherwise, the sealing performance of the sealing material is unqualified.

Because different types of sealing materials are uniformly cut into the annular sealing sheet, the sealing performance of different sealing materials can be detected by one detection device. Certainly, the cooperation gap of injecing by limit structure should be less than the thickness of annular sealing piece, and to the annular sealing piece of different thickness, we can inject different cooperation gaps through limit structure to make the compressive capacity of annular sealing piece accord with the design requirement, thereby ensure the unanimity of annular sealing piece compressive capacity, and then ensure the unity of testing result, avoid because of the inconsistent testing result error that leads to of compressive capacity.

In addition, the fluid sealant to be tested can be coated on the joint ring surface, and after the sealant is cured and forms the sealing strip, the box cover is closed to carry out the tightness test.

Preferably, as shown in fig. 2, the limiting structure comprises a limiting sleeve 7 arranged in a screw through hole of the annular sealing sheet, the fastening screw penetrates through the limiting sleeve and then is in threaded connection with the box body, and the height of the limiting sleeve is smaller than the thickness of the sealing element.

When we tighten the fastening screw, the limiting sleeve can accurately limit the size of the fit gap. It can be understood that different sizes of the fit gap can be conveniently limited by replacing the limit sleeves with different heights so as to adapt to the sealing performance test of different sealing elements. Because whole lid atress is the biggest in fastening screw department when screwing up fastening screw, consequently, the spacing sleeve at this moment can form effectual support to the lid, avoids the lid to appear recessedly in fastening screw department.

As another preferred solution, as shown in fig. 3, an outer annular rib 21 and an inner annular rib 22 located inside the outer annular rib may be further provided on the lower side of the box cover near the edge, so as to form an annular caulking groove between the inner and outer annular ribs, and the sealing element to be detected (i.e. the annular sealing sheet) is located in the annular caulking groove. That is, the annular bezel shape substantially conforms to the engaging annular surface of the cartridge body.

When needing to detect the sealing performance of certain sealing material, the annular gasket that the tester will cut is placed in the annular caulking groove, then covers the lid and screws up fastening screw gradually, and annular gasket this moment receives the extrusion of upper and lower direction and is squashed, and correspondingly, its transversely then can form the inflation. Because the annular sealing sheet cannot expand transversely due to the blocking and limiting of the inner and outer annular flanges, the tight compaction of the annular sealing sheet can be ensured, and the sealing performance of the sealing material in a real use scene can be accurately simulated.

It should be noted that, when we need to detect the sealing performance of the fluid sealant, the sealant can be coated in the annular caulking groove, and after the sealant is cured, a regular annular sealing rubber strip can be formed, so as to accurately detect the sealing effect of the sealant. That is to say, sealing member at this moment is made by fluid class sealed glue, and correspondingly, limit structure includes that a plurality of can overlap the first limit sleeve and the second limit sleeve on fastening screw, and the height that highly is higher than the second limit sleeve of first limit sleeve, and the difference in height between first limit sleeve and the second limit sleeve matches with the design compression volume of sealing member.

Therefore, when the sealing performance of the fluid sealant needs to be detected, the box cover can be covered on the box body firstly and is fastened by a part of fastening screws, and the first limiting sleeve with higher height is sleeved on the fastening screws and is positioned between the joint ring surfaces of the box cover and the box body, so that the box cover and the box body are fixed, and a higher matching gap is formed between the joint ring surfaces of the box cover and the box body. Then, the pasty sealant can be injected into a matching gap between the box cover and the joint ring surface by a glue gun through the residual screw through holes on the box cover. When the sealing glue is solidified, a sealing rubber strip with a set height is formed, the fastening screw on the box cover and the box cover are detached at the moment, the first limiting sleeve is taken down, the second limiting sleeve is arranged at the position corresponding to the through hole of the screw, and the box cover is fixed by the fastening screw, so that the matching gap between the box cover and the joint ring surface meets the set requirement, and correspondingly, the sealing element at the moment reaches the designed compression amount, and the consistency and the accuracy of the detection result can be ensured.

Of course, the first limiting sleeve can adopt a split structure, and specifically comprises a lower second sleeve and an upper additional sleeve. Therefore, when the sealing performance of the fluid sealant needs to be detected, the box cover can be covered on the box body and fastened by the fastening screws, at the moment, 3-4 first limiting sleeves are sleeved on the fastening screws and located between the joint ring surfaces of the box cover and the box body, so that the box cover and the box body are fixed, and a higher matching gap is formed between the joint ring surfaces of the box cover and the box body. The other fastening screws are sleeved with the second sleeve so as to form a gap with the lower surface of the box cover. And then, the fastening screws sleeved with the second sleeves are removed one by one, and the pasty sealant is injected into a matching gap between the box cover and the joint ring surface through the screw through holes on the box cover by a glue gun. Because the second sleeve has the space with lid lower surface, consequently sealed glue can get into in the cooperation gap through the space. When the sealing glue is solidified, a sealing rubber strip with a set height is formed, the fastening screw on the box cover and the box cover are detached at the moment, the additional sleeve of the first limiting sleeve is taken down, and the box cover is fixed by the fastening screw, so that a matching gap between the box cover and the joint ring surface meets the design requirement limited by the second sleeve.

Further, as shown in fig. 4, a detachable adapter interface 23 can be hermetically connected to the upper surface of the box cover, and a socket 231 for connecting with a connector to be tested is provided on the adapter interface. When the sealing performance of the connector needs to be detected, the connector can be connected to the switching interface, and the sealing performance of the connector can be detected. It can be appreciated that by replacing different adapter interfaces, the sealing performance of different types of connectors can be detected. When the sealing performance of the sealing material needs to be detected, only the switching interface on the box cover needs to be detached and the upper cover plate is connected in a sealing mode, or the box cover without the switching interface is replaced, so that the switching test between the sealing material and the connector is facilitated.

Furthermore, the side of the box body joint ring surface is provided with 4 oppositely arranged lugs 12, and a sealing plug is detachably arranged on the pneumatic connector. When the waterproof grade of the sealing material or the connector needs to be detected, the whole detection device provided with the sealing material or the connector only needs to be soaked in water. The hangers arranged on the box body in a relative arrangement are convenient to hoist the detection device into the soaking water tank. The sealing joint arranged on the pneumatic joint can ensure the sealing performance of the pneumatic joint, and the water pressure during soaking is prevented from entering the box body through the one-way valve of the pneumatic joint. When the waterproof grade detection is finished, the connector can be reused only by erasing the water on the surface of the connector, so that the waste is avoided.

To facilitate manufacture of the cassette, as shown in figure 5, a transversely extending flange 13 may be provided at the opening of the cassette, the upper surface of the flange forming the said engagement annulus. The box body is conveniently formed into an integral structure through aluminum alloy casting molding, and a smooth joint ring surface is formed through machining, so that the processing of the box body is simplified, the processing cost is reduced, and the integrated strength and the air tightness of the box cover and the box cover can be ensured.

Claims (7)

1. The utility model provides a detect sealing material sealing performance's comprehensive testing device, includes that upper portion opening part is equipped with box body, the lid of joint anchor ring close the lid at the box body opening part, is equipped with the pneumatic joint that can be connected with high pressurized air source on the box body lateral wall, characterized by, the quick-operation joint of pneumatic joint for having the check valve, pneumatic joint passes through the connecting pipe and connects on the lateral wall of box body, is connected with the barometer on the connecting pipe, is equipped with the cooperation gap between box body opening joint anchor ring and lid lower surface, is equipped with the sealing member of making by the sealing material that needs detect in the cooperation gap and is used for injecing the limit structure of cooperation gap size, is connected through.

2. The comprehensive detection device for detecting the sealing performance of the sealing material as claimed in claim 1, wherein a plurality of fastening screws are provided at intervals near the edge of the box cover and are in threaded connection with the engaging ring surface of the box body, the sealing member is provided with screw through holes at positions corresponding to the fastening screws, the limiting structure comprises limiting sleeves arranged in the screw through holes, the fastening screws penetrate through the limiting sleeves and are in threaded connection with the box body, and the height of the limiting sleeves is smaller than the thickness of the sealing member.

3. The integrated test device for testing the sealing performance of a sealing material according to claim 1, wherein an outer annular rib and an inner annular rib are provided at the lower side of the box cover, so as to form an annular caulking groove between the inner and outer annular ribs, and the sealing element is located in the annular caulking groove.

4. The comprehensive detection device for detecting the sealing performance of the sealing material according to claim 3, wherein the sealing member is made of fluid sealant, the limiting structure comprises a plurality of first limiting sleeves and second limiting sleeves, the first limiting sleeves and the second limiting sleeves can be sleeved on the fastening screws, the heights of the first limiting sleeves are higher than those of the second limiting sleeves, and the height difference between the first limiting sleeves and the second limiting sleeves is matched with the designed compression amount of the sealing member.

5. The comprehensive detection device for detecting the sealing performance of the sealing material as claimed in claim 1, wherein a detachable adapter interface is hermetically connected to the upper surface of the box cover, and the adapter interface is provided with a socket for connecting with a connector to be detected.

6. The comprehensive test device for testing the sealing performance of the sealing material as claimed in claim 1, wherein the side of the joint ring surface of the box body is provided with oppositely arranged lugs, and the pneumatic connector is detachably provided with the sealing plug.

7. The integrated test device for testing the sealing performance of the sealing material as claimed in claim 1, wherein the opening of the box body is provided with a flange edge extending transversely outwards, and the upper surface of the flange edge forms the joint ring surface.

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