CN211790590U - Composite sealing structure - Google Patents
Composite sealing structure Download PDFInfo
- Publication number
- CN211790590U CN211790590U CN202020684773.7U CN202020684773U CN211790590U CN 211790590 U CN211790590 U CN 211790590U CN 202020684773 U CN202020684773 U CN 202020684773U CN 211790590 U CN211790590 U CN 211790590U
- Authority
- CN
- China
- Prior art keywords
- shell
- end cover
- convex ring
- opening
- gland
- 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.)
- Active
Links
Images
Landscapes
- Gasket Seals (AREA)
- Cable Accessories (AREA)
Abstract
The utility model relates to a composite sealing structure, which comprises a shell, wherein the middle part of the top end of the shell is provided with an opening, a convex ring extends upwards from the outer side of the opening, an end cover matched with the opening of the shell is arranged at the opening of the shell, sealant is filled in the convex ring above the end cover, and a sealing cavity is formed in the shell inside the end cover; the outer circumferential surface of the convex ring is sleeved with a rubber sleeve, the convex ring is accommodated in the rubber sleeve, and the outer wall surfaces of the upper part and the lower part of the rubber sleeve are fixedly provided with strapping parts; or the end cover is welded with the shell, a gland is arranged at the top of the shell, the peripheral edge of the gland and the top surface of the shell are welded in an ultrasonic sealing way, and the gland and the shell are jointly accommodated in a space between the upper cover shell and the lower cover shell; the utility model discloses a mode of multiple combination such as end cover, sealed glue, welding realizes and guarantees the sealed of casing internal seal chamber, and is sealed effectual, has greatly ensured the corresponding electron of sealed intracavity or the performance of mechanical product under harsh operating mode.
Description
Technical Field
The utility model belongs to the technical field of sealed technique and specifically relates to a compound seal structure.
Background
In order to maintain good use performance of products used in high-temperature, low-temperature, high-pressure, low-pressure environments, and the like, the products need to have one or more of acid resistance, alkali resistance, alcohol resistance, oil resistance, and the like. In the prior art, the products are usually sealed only by a sealing mode, so that the products only have good sealing performance to one or a part of environments, sealing failure is easy to cause due to the complexity of the use environment, and the use performance of the products is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The applicant provides a composite sealing structure with a reasonable structure aiming at the defects in the prior art, so that the sealing of a sealing cavity in the shell is realized and ensured by a plurality of combined modes such as end covers, sealant, welding and the like, and the service performance of corresponding electronic or mechanical products in the sealing cavity under harsh working conditions is greatly ensured.
The utility model discloses the technical scheme who adopts as follows:
a composite sealing structure comprises a shell, wherein the middle part of the top end of the shell is provided with an opening, a convex ring extends upwards from the outer side of the opening of the shell, an end cover matched with the opening of the shell is arranged at the opening of the shell, sealant is filled in the convex ring above the end cover, and a sealing cavity is formed in the shell at the inner side of the end cover; the outer circumferential surface of the convex ring is sleeved with a rubber sleeve, the convex ring is accommodated in the rubber sleeve, and strapping parts are fixedly arranged on the outer wall surfaces of the upper part and the lower part of the rubber sleeve.
As a further improvement of the above technical solution:
a cable is arranged in the shell, the end part of the cable extends out through an opening at the top of the shell, and the end part of the cable sequentially penetrates through the end cover, the sealing glue and the rubber sleeve; the binding member at the lower part binds the rubber sleeve tightly to the convex ring from the outside, and the binding member at the upper part binds the rubber sleeve tightly to the cable from the outside.
The end cover is a rubber plug.
A composite sealing structure comprises a shell, wherein the middle part of the top end of the shell is provided with an opening, a convex ring extends upwards from the outer side of the opening of the shell, an end cover matched with the opening of the shell is arranged at the opening of the shell, sealant is filled in the convex ring above the end cover, and a sealing cavity is formed in the shell at the inner side of the end cover; the end cover is connected with the shell in a welding mode.
A step is formed between the inner wall surface of the convex ring and the opening of the shell, and the end cover is supported on the step.
The top of the shell is provided with a gland, and the peripheral edge of the gland and the top surface of the shell are welded through ultrasonic sealing.
The middle part of the inner top surface of the gland is provided with a groove, and the convex ring is accommodated in the groove.
The gland and the shell are jointly accommodated in a space between the upper cover shell and the lower cover shell; and a sealing ring is arranged on the joint surface of the upper cover shell and the lower cover shell.
The top surface extends inwards in the upper housing and is provided with a pressing rib, and the bottom end of the pressing rib is attached to the outer top surface of the gland.
The upper cover shell and the lower cover shell are connected through a fastener.
The utility model has the advantages as follows:
the utility model has the advantages of compact and reasonable structure, convenient operation realizes and guarantees the sealed of casing internal seal chamber through the mode of multiple combinations such as end cover, sealed glue, welding to greatly ensure the corresponding electron of sealed intracavity or the performance of mechanical product under harsh operating mode, prolong its life greatly.
The utility model discloses still include following advantage:
the end cover of the innermost rubber plug in a close fit mode or the end cover connected by welding is a waterproof and airtight structure, so that the interference of external water and gas can be effectively isolated;
the second layer is silica gel sealant, and is a high-low temperature resistant and acid-alkali resistant sealing structure while a limited gap between the end cover and the shell is filled to further tamp a waterproof structure, so that the external temperature change or the corrosion of an acid-alkali environment can be effectively prevented;
the outermost rubber sleeve is a waterproof and oil-resistant sealing structure, and forms a three-layer structure seal together with the sealant and the end cover, so that the sealing performance of the sealing cavity is greatly guaranteed;
the existence of the last housing and the lower housing of mutually supporting, and the last housing inner top surface extends presses the muscle to laminate in the gland to guaranteed effective permanent laminating between gland and the casing top surface, ensured the inside leakproofness of casing.
Drawings
Fig. 1 is a schematic structural diagram of the present invention (embodiment one).
Fig. 2 is a schematic structural diagram of the present invention (embodiment two).
Fig. 3 is a schematic structural diagram of the present invention (embodiment three).
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Wherein: 1. a housing; 2. sealing the cavity; 3. a binding member; 4. an end cap; 5. sealing glue; 6. a rubber sleeve; 7. a cable; 8. a lower housing shell; 9. an upper housing; 10. a seal ring; 11. a gland; 101. a convex ring; 102. a step; 91. pressing ribs; 111. and (4) a groove.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The first embodiment is as follows:
as shown in fig. 1, the composite sealing structure of the embodiment includes a housing 1, an opening is formed in the middle of the top end of the housing 1, a convex ring 101 extends upward from the outer side of the opening of the housing 1, an end cover 4 matched with the opening of the housing 1 is installed at the opening of the housing 1, a sealant 5 is filled in the convex ring 101 above the end cover 4, and a sealing cavity 2 is formed in the housing 1 inside the end cover 4; the outer circumference of the convex ring 101 is sleeved with a rubber sleeve 6, the convex ring 101 is accommodated in the rubber sleeve 6, the outer wall surfaces of the upper portion and the lower portion of the rubber sleeve 6 are fixedly provided with a strapping part 3, and the strapping part 3 enables the opening of the rubber sleeve 6 to be contracted and sealed.
A cable 7 is arranged in the shell 1, the end part of the cable 7 extends out through an opening at the top of the shell 1, and the end part of the cable 7 sequentially penetrates through the end cover 4, the sealant 5 and the rubber sleeve 6; the lower binding tool 3 externally fastens the rubber cover 6 to the collar 101, and the upper binding tool 3 externally fastens the rubber cover 6 to the cable 7.
A step 102 is formed between the inner wall surface of the collar 101 and the opening of the housing 1, and the end cap 4 is supported on the step 102.
The end cap 4 is a rubber plug.
In the embodiment, the sealing of the sealing cavity 2 in the shell 1 is realized and ensured by the combination of the end cover 4, the sealant 5 and the rubber sleeve 6, wherein the end cover 4 in the form of tightly fitting the rubber plug at the innermost layer is of a waterproof and airtight structure, and can effectively isolate the interference of external moisture; the second layer is silica gel sealant 5, and the limited gap between the filling end cover 4 and the shell 1 is filled to further tamp a waterproof structure, and simultaneously, the second layer is a high-low temperature resistant and acid-base resistant sealing structure, so that the external temperature change or the corrosion of an acid-base environment can be effectively prevented; the outermost rubber sleeve 6 is a waterproof and oil-resistant sealing structure, and forms a three-layer structure seal together with the sealant 5 and the end cover 4, so that the sealing performance of the sealing cavity 2 is greatly guaranteed.
Example two:
as shown in fig. 2, the composite sealing structure of the embodiment includes a housing 1, an opening is formed in the middle of the top end of the housing 1, a convex ring 101 extends upward from the outer side of the opening of the housing 1, an end cover 4 matched with the opening of the housing 1 is installed at the opening of the housing 1, a sealant 5 is filled in the convex ring 101 above the end cover 4, and a sealing cavity 2 is formed in the housing 1 inside the end cover 4; the end cover 4 is welded with the shell 1.
A step 102 is formed between the inner wall surface of the collar 101 and the opening of the housing 1, and the end cap 4 is supported on the step 102.
In this embodiment, the end cap 4 and the sealant 5 which are connected by welding realize the sealing of the two-layer structure of the sealed cavity 2.
Example three:
as shown in fig. 3 and 4, on the basis of the second embodiment, the top of the housing 1 is provided with the gland 11, and the peripheral edge of the gland 11 and the top surface of the housing 1 are welded by ultrasonic sealing.
The middle of the inner top surface of the gland 11 is provided with a groove 111, and the convex ring 101 is accommodated in the groove 111.
The gland bush comprises an upper cover shell 9 and a lower cover shell 8 which are matched with each other, and the gland bush 11 and the shell 1 are jointly accommodated in a space between the upper cover shell 9 and the lower cover shell 8; and a sealing ring 10 is arranged on the joint surface of the upper cover shell 9 and the lower cover shell 8.
The top surface inwards extends has the rib 91 in the upper cover shell 9, and the top surface laminating outside rib 91 bottom and the gland 11.
The upper and lower cases 9 and 8 are connected by fasteners.
In the embodiment, besides the two-layer seal composed of the end cover 4 and the sealant 5, a gland 11, an upper housing 9 and a lower housing 8 which are matched with each other are additionally arranged outside, namely the four-layer structure seal is formed outside the sealing cavity 2; and the rib 91 that the top surface extends in upper housing 9 is laminated in gland 11, has also further guaranteed effective permanent laminating between gland 11 and the casing 1 top surface, has ensured the inside leakproofness of casing 1.
The utility model discloses simple structure is compact, through compound seal structure, has effectively guaranteed the whole leakproofness in sealed chamber, and then has ensured the performance of sealed intracavity product.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (10)
1. A compound seal structure which characterized in that: the sealing device comprises a shell (1), wherein the middle part of the top end of the shell (1) is opened, a convex ring (101) extends upwards from the outer side of the opening of the shell (1), an end cover (4) matched with the shell is installed at the opening of the shell (1), a sealing glue (5) is filled in the convex ring (101) above the end cover (4), and a sealing cavity (2) is formed in the shell (1) on the inner side of the end cover (4); the outer circumferential surface of the convex ring (101) is sleeved with a rubber sleeve (6), the convex ring (101) is accommodated in the rubber sleeve (6), and the outer wall surfaces of the upper part and the lower part of the rubber sleeve (6) are fixedly provided with the strapping parts (3).
2. A composite sealing structure according to claim 1, wherein: a cable (7) is installed in the shell (1), the end part of the cable (7) extends out through an opening at the top of the shell (1), and the end part of the cable (7) sequentially penetrates through the end cover (4), the sealant (5) and the rubber sleeve (6); the binding member (3) located at the lower portion externally fastens the rubber sleeve (6) to the convex ring (101), and the binding member (3) located at the upper portion externally fastens the rubber sleeve (6) to the cable (7).
3. A composite sealing structure according to claim 1 or 2, wherein: the end cover (4) is a rubber plug.
4. A compound seal structure which characterized in that: the sealing device comprises a shell (1), wherein the middle part of the top end of the shell (1) is opened, a convex ring (101) extends upwards from the outer side of the opening of the shell (1), an end cover (4) matched with the shell is installed at the opening of the shell (1), a sealing glue (5) is filled in the convex ring (101) above the end cover (4), and a sealing cavity (2) is formed in the shell (1) on the inner side of the end cover (4); the end cover (4) is connected with the shell (1) in a welding mode.
5. A composite sealing structure according to claim 1 or 4, wherein: a step (102) is formed between the inner wall surface of the convex ring (101) and the opening of the shell (1), and the end cover (4) is supported on the step (102).
6. A composite sealing structure according to claim 4, wherein: the top of the shell (1) is provided with a gland (11), and the edges of the periphery of the gland (11) and the top surface of the shell (1) are welded through ultrasonic sealing.
7. A composite sealing structure according to claim 6, wherein: the middle part of the inner top surface of the gland (11) is provided with a groove (111), and the convex ring (101) is accommodated in the groove (111).
8. A composite sealing structure according to claim 6, wherein: the gland (11) and the shell (1) are jointly accommodated in a space between the upper cover shell (9) and the lower cover shell (8); and a sealing ring (10) is arranged on the joint surface of the upper cover shell (9) and the lower cover shell (8).
9. A composite sealing structure according to claim 8, wherein: the top surface inwards extends and has the ribbing (91) in upper housing (9), and the top surface laminating outside ribbing (91) bottom and gland (11).
10. A composite sealing structure according to claim 8, wherein: the upper cover shell (9) and the lower cover shell (8) are connected through fasteners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020684773.7U CN211790590U (en) | 2020-04-28 | 2020-04-28 | Composite sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020684773.7U CN211790590U (en) | 2020-04-28 | 2020-04-28 | Composite sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211790590U true CN211790590U (en) | 2020-10-27 |
Family
ID=72957865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020684773.7U Active CN211790590U (en) | 2020-04-28 | 2020-04-28 | Composite sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211790590U (en) |
-
2020
- 2020-04-28 CN CN202020684773.7U patent/CN211790590U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211790590U (en) | Composite sealing structure | |
| CN201075761Y (en) | Water-proof motor | |
| CN105720221A (en) | Metal part pressure anti-explosion pressure-release balance valve used in compact battery pack | |
| CN213685702U (en) | Mounting flange with good sealing performance | |
| CN110702249B (en) | Armored thermocouple junction box and sealing method thereof | |
| CN105545242A (en) | High-temperature wellhead penetrator structure for electric submersible pump | |
| CN207409971U (en) | Waterproof sealing terminal box | |
| JPH0740123Y2 (en) | gasket | |
| CN205971870U (en) | Unmanned aerial vehicle organism oil tank | |
| CN207318858U (en) | Glass window mouth sealing structure | |
| CN209299035U (en) | A kind of motor | |
| CN204126755U (en) | Diesel engine cylinder head cover | |
| CN206293869U (en) | Flame proof armouring double containment cable entry | |
| CN219586829U (en) | High-sealing pressure tank with heat preservation function | |
| CN201751558U (en) | Sealing structure of case closing face of crankcase | |
| CN205876540U (en) | It seals liner and seal assembly to increase compacting | |
| CN206419461U (en) | A kind of chain box sealing structure | |
| CN204642573U (en) | Suction pressure seal box | |
| CN211405714U (en) | Motor casing and lead sealing structure | |
| CN209067362U (en) | Valve mechanism cover multi-sealing structure | |
| CN212251594U (en) | Gas circuit sealing gasket mounting structure | |
| CN214946367U (en) | Shaft end sealing structure for gas medium | |
| CN214837514U (en) | Sealing structure of sealing washer | |
| CN217234389U (en) | Combined oil seal for motor | |
| CN109281773A (en) | Valve mechanism cover multi-sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |