CN111156315A

CN111156315A - Sealing device

Info

Publication number: CN111156315A
Application number: CN202010108185.3A
Authority: CN
Inventors: 王德志
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-05-15

Abstract

The invention discloses a sealing device which is used for sealing a detected piece to detect air leakage, and comprises a mounting seat and a sealing assembly, wherein a first through hole is formed in the mounting seat; in the mount pad can be arranged in to seal assembly, seal assembly includes body, sealing washer and tight loop, this internal holding tank and the second through-hole of being equipped with, holding tank and second through-hole communicate each other with first through-hole, and the both ends of body are equipped with the sealing washer respectively, and the periphery wall of body is equipped with the tight loop, and wherein, body, sealing washer and tight loop are the integrated into one piece structure. The O-shaped ring of the sealing device does not fall off, the applicability is good, and a good sealing effect can be achieved by small pressure.

Description

Sealing device

Technical Field

The invention relates to the technical field of air leakage detection, in particular to a sealing device.

Background

Firstly, a sealing assembly of the sealing device is bonded on a sealing part by adopting a profiling silica gel ring or a rubber ring, and the profiling silica gel ring or the rubber ring is easy to rebound and fall off because the sealing assembly can be placed on different positions to seal the product; secondly, because profile modeling silica gel circle or rubber circle are O type circle, and O type circle is the standard component, and the size is several kinds of fixed specifications, therefore seal assembly receives the size restriction of sealing washer such as profile modeling silica gel circle or rubber circle, and the product type that can detect is comparatively limited.

Disclosure of Invention

The invention aims to provide a sealing device, a sealing ring of which does not fall off and has good applicability and quality.

In order to achieve the purpose, the invention adopts the following technical scheme:

a sealing device is used for sealing a detected piece to detect air leakage and comprises a mounting seat and a sealing assembly, wherein a first through hole is formed in the mounting seat; the sealing assembly can be arranged in the mounting seat, the sealing assembly comprises a body, a sealing ring and a fastening ring, a holding groove and a second through hole are arranged in the body, the holding groove is communicated with the second through hole and the first through hole, the sealing ring is arranged at each of two ends of the body, the peripheral wall of the body is provided with the fastening ring, and the body, the sealing ring and the fastening ring are of an integrally formed structure.

Optionally, the sealing ring includes a first sealing ring and a second sealing ring, the first sealing ring is located at a position where the body is close to the end face of the detected piece, and the second sealing ring is located at a position where the body is far away from the end face of the detected piece.

Optionally, an end surface of the body away from the mounting seat is a profiling surface.

Optionally, the sealing ring is an O-ring.

Optionally, the accommodating groove is internally provided with a detected part of the detected piece, and the detected part is arranged in a gap with the inner wall of the accommodating groove.

Optionally, the outer surface of the sealing ring is an arc-shaped surface; and/or the outer surface of the fastening ring is an arc-shaped surface.

Optionally, the body still includes the baffle, the periphery wall of baffle stop on the internal perisporium of body, be equipped with on the baffle the second through-hole.

Optionally, the partition plate, the body, the sealing ring and the fastening ring are of an integrally formed structure.

Optionally, the sealing assembly is an elastomeric member.

Optionally, the sealing device further comprises an air source connector, and the air source connector is connected with the mounting seat and used for introducing a test air source into the first through hole.

Compared with the prior art, the invention has the beneficial effects that:

the sealing assembly is made through the mould, and body, sealing washer and tight loop are integrated into one piece structure, and sealing washer, tight loop can not drop, and is of high quality, and can produce corresponding mould according to the difference size that is detected the piece, and the different sealing assembly who is detected the piece is pressed to the adaptation through the corresponding mould of rethread, and sealing assembly no longer receives the standard size restriction of sealing washer, is applicable to the difference and is detected the piece, and the suitability is good.

Drawings

FIG. 1 is a schematic structural diagram of a detected member and a sealing device according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a test object engaged with a sealing device according to an embodiment of the present invention;

FIG. 3 is an angled configuration of a seal assembly according to embodiments of the present invention;

FIG. 4 is a schematic view of another angle of the seal assembly according to an embodiment of the present invention.

Reference numerals:

the device comprises a detected part-100, a detected part-1001, a mounting seat-1, a first through hole-11, a sealing assembly-2, a body-21, a containing groove-211, a second through hole-212, a profiling surface-213, a first sealing ring-22, a second sealing ring-23, a fastening ring-24, a partition plate-25 and an air source joint-3.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

A specific structure of a sealing device of an embodiment of the present invention is described below with reference to fig. 1 to 4.

A sealing device is used for sealing a detected piece 100 for air leakage detection and comprises a mounting seat 1 and a sealing assembly 2, wherein a first through hole 11 is formed in the mounting seat 1; in seal assembly 2 can arrange mount pad 1 in, seal assembly 2 includes body 21, sealing washer and tight loop 24, is equipped with holding tank 211 and second through-hole 212 in the body 21, and holding tank 211 and second through-hole 212 communicate with first through-hole 11 each other, and the both ends of body 21 are equipped with the sealing washer respectively, and the periphery wall of body 21 is equipped with tight loop 24, and wherein, body 21, sealing washer and tight loop 24 are the integrated into one piece structure.

It should be noted that, the sealing assembly 2 is formed by pressing through a die, and the body 21, the sealing ring and the fastening ring 24 are of an integrally formed structure, so that the sealing ring and the fastening ring 24 cannot fall off and have good quality; corresponding dies can be manufactured according to the sizes of different detected pieces 100, and then the sealing assemblies 2 which are suitable for the different detected pieces 100 are pressed by the corresponding dies, so that the sealing assemblies 2 are not limited by the standard sizes of the sealing rings any more, are suitable for the different detected pieces 100, and have good applicability; furthermore, the sealing ring serves for sealing and the fastening ring 24 serves for fastening.

It is supplementary to explain, at first place seal assembly 2 in mount pad 1, the tight circle 24 ends on the inner wall of mount pad 1, the sealing washer that is close to mount pad 1 also ends on the inner wall of mount pad 1, again will be detected the piece 100 and place in holding tank 211, the sealing washer that is far away from mount pad 1 laminates and is detected the piece 100 in order to be detected the portion 1001 sealed of being detected the piece 100, the outside is exerted preset pressure and is filled the air supply from first through-hole 11 of mount pad 1, again pass through second through-hole 212 and holding tank 211 in proper order, wait for specific time, observe whether the internal pressure value changes, then can test whether there is gas leakage by detecting piece 100.

Optionally, the sealing rings include a first sealing ring 22 and a second sealing ring 23, the first sealing ring 22 is located on the end surface of the body 21 close to the detected piece 100, and the second sealing ring 23 is located on the end surface of the body 21 far from the detected piece 100.

It should be noted that, the first sealing ring 22 wraps the detected part 1001 of the detected piece 100 for sealing, so as to prevent the contact position between the body 21 and the detected part 1001 from being communicated with the outside air, thereby affecting the air leakage detection of the detected piece 100, and the second sealing ring 23 seals the contact position between the body 21 and the mounting base 1, so as to prevent the external air source from leaking out from the contact position between the body 21 and the mounting base 1, thereby affecting the air leakage detection of the detected piece 100.

Optionally, the end surface of the body 21 away from the mounting base 1 is the profiling surface 213, the profiling surface 213 can be designed correspondingly according to the shape of the detected piece 100, the detected piece 100 is placed in the accommodating groove 211, and since the contact surface of the detected piece 100 and the mounting base 1 is the profiling surface 213, the stress surface is more uniform, the stability is good, and the detected part 1001 of the detected piece 100 is not easy to be damaged or broken.

Optionally, the sealing ring is an O-ring. It should be noted that the O-ring is a rubber sealing ring with a circular or O-shaped cross section, so that the first sealing ring 22 and the detected object 100 are in surface tangent contact, the area of the contact surface is large, and a good sealing effect can be achieved by providing a small amount of pressure.

Alternatively, the accommodating groove 211 accommodates the detected part 1001 of the detected member 100, and the detected part 1001 is spaced from the inner wall of the accommodating groove 211. It should be noted that, because the gap between the detected portion 1001 and the inner wall of the accommodating groove 211 is set, when the gap space is filled with an external air source, the outer sidewall of the detected portion 1001 is fully contacted with the air source, so as to effectively detect whether there is air leakage at each position of the outer sidewall of the detected portion 1001, and the detection effect is better.

Optionally, the outer surface of the sealing ring is an arc-shaped surface; and/or the outer surface of the fastening ring 24 is an arc surface, it can be understood that the outer surface of the sealing ring is an arc surface, so that the contact surface between the sealing ring and the inner wall of the detected part 1001 and the inner wall of the mounting seat 1 is larger, and the sealing effect is better; the surface of clamping ring 24 is the arcwall face, and then clamping ring 24 is great with the contact surface of the inner wall of mount pad 1, and fastening effect is better.

Optionally, the body 21 further comprises a partition 25, an outer peripheral wall of the partition 25 abuts against an inner peripheral wall of the body 21, and the partition 25 is provided with a second through hole 212. It should be noted that the partition 25 serves as a support to prevent the body from deforming inwardly due to the internal cavity. The second through hole 212 is formed in the partition plate 25, so that the air source can pass through the second through hole 212 from the first through hole 11 to the accommodating groove 211.

Alternatively, the partition plate 25 is integrally formed with the body 21, the seal ring and the fastening ring 24 by pressing with a mold to form the seal assembly 2.

Optionally, the sealing assembly 2 is an elastic member, and the sealing assembly 2 is in interference fit with the mounting seat 1, so that the sealing effect and the fastening effect are better.

Optionally, the sealing device further includes an air source connector 3, the air source connector 3 is connected to the mounting base 1 and is used for introducing a test air source into the first through hole 11, and the air source connector 3 plays a role in connecting the external ventilation device with the mounting base 1. In addition, the external air source is not easy to leak from the joint of the external ventilating device and the air source connector 3 and the joint of the mounting seat 1 and the air source connector 3, and the air source connector 3 is good in sealing performance.

The working principle of the sealing device of a preferred embodiment of the invention is as follows: firstly, the sealing assembly 2 is placed in the installation seat 1, the fastening ring 24 is abutted to the inner wall of the installation seat 1, the second sealing ring 23 is also abutted to the inner wall of the installation seat 1, the detected part 1001 of the detected part 100 is placed in the accommodating groove 211, the first sealing ring 22 is attached to the detected part 100 to seal the detected part 1001 of the detected part 100, preset pressure is applied to the outside to fill an air source from the first through hole 11 of the installation seat 1, the air source sequentially passes through the second through hole 212 and the accommodating groove 211, after the specific time is waited, whether the internal pressure value is changed or not is observed, and whether the detected part 100 leaks air or not can be tested.

In the description herein, references to the description of "some embodiments," "other embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Further, it is to be understood that the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "mounted," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. Those skilled in the art can understand the above specific meanings included in the present invention according to specific situations.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A sealing device for sealing a test object (100) for leak testing, the sealing device comprising:

the mounting base (1), wherein a first through hole (11) is formed in the mounting base (1);

seal assembly (2), seal assembly (2) can be arranged in mount pad (1), seal assembly (2) include body (21), sealing washer and tight loop (24), be equipped with holding tank (211) and second through-hole (212) in body (21), holding tank (211) with second through-hole (212) with first through-hole (11) communicate each other, the both ends of body (21) are equipped with respectively the sealing washer, the periphery wall of body (21) is equipped with tight loop (24), body (21) the sealing washer with tight loop (24) are the integrated into one piece structure.

2. The sealing device according to claim 1, wherein the sealing rings comprise a first sealing ring (22) and a second sealing ring (23), the first sealing ring (22) is located on the end surface of the body (21) close to the detected member (100), and the second sealing ring (23) is located on the end surface of the body (21) far away from the detected member (100).

3. A sealing arrangement according to claim 2, characterized in that the end surface of the body (21) remote from the mounting seat (1) is a profiled surface (213).

4. The sealing device of claim 1, wherein the sealing ring is an O-ring.

5. The sealing device according to claim 1, wherein the accommodating groove (211) accommodates a detected portion (1001) of the detected member (100), and the detected portion (1001) is provided in a gap with an inner wall of the accommodating groove (211).

6. The seal of claim 1, wherein the outer surface of said seal ring is arcuate; and/or the outer surface of the fastening ring (24) is an arc-shaped surface.

7. A sealing device according to claim 1, wherein the body (21) further comprises a partition (25), the outer circumferential wall of the partition (25) resting against the inner circumferential wall of the body (21), the partition (25) being provided with the second through hole (212).

8. A sealing device according to claim 7, wherein the partition (25) is of one-piece construction with the body (21), the sealing ring and the fastening ring (24).

9. A sealing arrangement according to claim 1, wherein the sealing assembly (2) is an elastomeric member.

10. The sealing device according to claim 1, further comprising an air supply connector (26), wherein the air supply connector (26) is connected to the mounting base (1) for introducing a test air supply to the first through hole (11).