CN201213220Y - Gas sealing device for cable - Google Patents
Gas sealing device for cable Download PDFInfo
- Publication number
- CN201213220Y CN201213220Y CNU2008201173510U CN200820117351U CN201213220Y CN 201213220 Y CN201213220 Y CN 201213220Y CN U2008201173510 U CNU2008201173510 U CN U2008201173510U CN 200820117351 U CN200820117351 U CN 200820117351U CN 201213220 Y CN201213220 Y CN 201213220Y
- Authority
- CN
- China
- Prior art keywords
- sealing gasket
- sealing
- cable
- maintenance window
- cover plate
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model discloses a cable gas sealing device. The device comprises an operation maintenance window and a cover plate, wherein the margins of the operation maintenance window and the cover plate are provided with cable inlets, a first sealing gasket and a second sealing gasket are arranged between the operation maintenance window and the cover plate arranged at the cable inlets, and cable inlet holes are arranged on the first sealing gasket and the second sealing gasket; the contact surface of the first sealing gasket and the second sealing gasket is provided with a flange along the longitudinal direction, and two side faces of the flange are mutually symmetrical; and the contact surface of the second sealing gasket and the first sealing gasket is provided with two flanges along the longitudinal direction, a groove for holding the flange on the first sealing gasket is formed between the two flanges, and the side faces of the two flanges on the second sealing gasket are in an unsymmetrical structure. The cable gas sealing device has the advantages of small volume, simple structure, low cost, good gas sealability, and the like.
Description
Technical field
The utility model relates to a kind of Sealing Technology, specifically, relates to the gas-tight sealing that a kind of cable enters seal cavity.
Background technology
At present, during the product design of outdoor communication base station, inner unit, veneer density are increasing, and the volume of equipment is more and more littler, and the quantity that cable enters casing inside gets more and more.Avoid the generation of phenomenons such as condensation, corrosion for guaranteeing in abominable operational environment casing inside, the reliability of assurance equipment and the convenience that the casing protective is checked, removing requires casing that higher IP (INTERNATIONALPROTECTION will be arranged, international level of protection) outside the degree of protection, also require casing to have good air-tightness.
In the prior art, the sealing means that cable enters sealed enclosure mainly contains two kinds:
First kind of mode is to use the connector body that satisfies airtight requirement, this socket has one section cable and a plug, plug one end is connected with device interior functional unit socket, and socket one end is connected with outdoor cable, and socket and casing mating surface all have sealing ring to realize the airtight of integral body.This mode has following defective:
1) needs jack design to be become hermetic connector, the cost costliness;
2) because every cable all needs to connect by socket, the density that cable is entered casing inside is restricted;
3) because therefore one section cable of plug end band needs bigger operating space can realize the plug of socket on plug and the functional unit at device interior;
4) when connect on the built-in function unit be optical module the time, the replacing of optical module is very inconvenient, need open equipment and can operate, and is particularly more inconvenient concerning a lot of equipment of those screw numbers.
Can welding by PCB (printed circuit board (PCB)) socket is direct and functional unit in some cases of this mode, but socket cost and Connection Density still are restricted.
The second way is at equipment end setting operation maintenance window and cover plate, and burst at the seams on Operation and Maintenance window and cover plate cable via hole, groove, outdoor cable directly link together to realize the transmission of signal by the functional unit in this cable-through hole and the equipment.Realize sealing by sealing ring between cover plate and maintenance window, the cable, or cable uses independently the waterproof sealing seat to realize sealing.This sealing means is owing to saved connector, thereby certain saving arranged on the cost, but multi-thread cable enters sealed enclosure and will realize airtight in little space, adopt the mode of waterproof sealing seat to be difficult to realize highdensity cable configurations, and realize that with sealing ring the form that seals does not reach airtight requirement at present as yet.
In the second way, relatively be typically the labyrinth structure sealing means that adopts the staggered seamed edge of elastomer.In technical field of sealing technology, cross structure and labyrinth structure are two kinds of common hermetically-sealed construction modes, cross structure common as sealing polybag certainly; Labyrinth structure is the also employing on the structure of shaft seal more.But these seal means mainly are to carry out at the sealing of liquid, and the flowability of liquid is well below gas, simultaneously, liquid has surface tension, these all make at the sealing of liquid than gas next easily, this also is the starting point of labyrinth structure seal fluid.Therefore, be applicable to that the cross structure of liquid seal and labyrinth structure can not be directly applied for the sealing of gas and guarantee good sealing effectiveness.
For example publication number is CN101047387, and denomination of invention is in the Chinese invention patent application of " a kind of radio-frequency module, outlet port sealing elastomer and base station ", a kind of labyrinth seal structure that adopts the staggered seamed edge of elastomer of just settling sth. according to policy or law.Mention in the technical background of this application for a patent for invention, this invention is that the level of protection at IPX5 designs.In this invention, the seamed edge labyrinth structure of symmetry is adopted in elastomer design, and elastomer and its standing groove structure are all complicated, as the accompanying drawing 9 of its application for a patent for invention Publication Specification and shown in Figure 10; This invents design without limits on the elastomeric decrement, is to be out of shape in a nonocclusive space, shown in the accompanying drawing 7 of its application for a patent for invention Publication Specification.The benefit of this design is to increase along with pressure increases elastomeric deflection, and the increase of pressure can make sealing necessarily be strengthened.But owing to elastomeric distortion is not effectively controlled and is retrained, on the one hand, the increase of pressure often causes elastomer to cross distortion, elastomeric material for long strand, long-term big pressure is crossed under the distortion situation, the material molecule chain can rupture, and the fatigue aging of accelerated material causes seal failure; On the other hand, because better controlled is not carried out in elastomeric distortion, also had influence on the effect of sealing.
The utility model content
The technical problems to be solved in the utility model provides that a kind of volume is little, simple in structure, cost is low, and has the cable gas-tight sealing of good gas sealing property.
In order to address the above problem, the utility model provides a kind of cable gas-tight sealing, comprise Operation and Maintenance window and cover plate, Operation and Maintenance window and side edge thereof are provided with the cable import, be provided with first sealing gasket and second sealing gasket between the Operation and Maintenance window of described cable import department and the cover plate, have entrance hole on described first sealing gasket and second sealing gasket; Longitudinally be provided with a flange on the contact-making surface of described first sealing gasket and second sealing gasket, two sides of this flange are symmetrical; Longitudinally be provided with two flanges on the contact-making surface of described second sealing gasket and first sealing gasket, form the groove that holds the described first sealing gasket upper flange between two flanges, the side of two flanges on described second sealing gasket is a unsymmetric structure.
Further, two flanges of described second sealing gasket are vertical plane towards the side of described groove, and the side that deviates from described groove is the inclined-plane.
Further, described first sealing gasket and second sealing gasket are separately positioned in the groove of described cover plate and Operation and Maintenance window.
Further, described first sealing gasket and second sealing gasket have many groups respectively.
Further, described many group first sealing gaskets and the interlaced setting of second sealing gasket.
Further, also be provided with peripheral sealing gasket between the edge of described Operation and Maintenance window and cover plate, described peripheral sealing gasket is arranged in the seal groove at described Operation and Maintenance window edge place, and face of described peripheral sealing gasket is provided with flange, and two sides of this flange are unsymmetric structure.
Further, described periphery sealing is lined with two, and the vertical side of two peripheral sealing gasket upper flanges is respectively towards two sidewalls of described seal groove.
Further, described peripheral sealing gasket is connected as a whole with described first sealing gasket or second sealing gasket.
Further, connect by bolted between described Operation and Maintenance window and the cover plate.
Further, also connect between described Operation and Maintenance window and the cover plate by chain or hinge.
Cable gas-tight sealing of the present utility model can be controlled the distortion of elastomeric material sealing gasket by the design of asymmetric flange section, to satisfy airtight requirement; Simultaneously, the deflection of the design control elastomeric material sealing gasket by seal groove can not produce the problem of deformation failure.In addition, the utility model does not use connector, and simple in structure, the characteristics such as little, easy to manufacture, with low cost that take up room just can satisfy the high density cable to enter seal cavity in little space, its applicability is wide, also can be used in the single line cable and enter, do not have situations such as cable enters.
Description of drawings
Fig. 1 is the three-dimensional exploded view of an embodiment of cable gas-tight sealing of the present utility model;
Fig. 2 is an assembled state schematic diagram embodiment illustrated in fig. 1;
Fig. 3 is the structural representation of an embodiment of first sealing gasket in the utility model;
Fig. 4 is the A-A cutaway view of first sealing gasket shown in Figure 3;
Fig. 5 is the structural representation of an embodiment of first sealing gasket and peripheral sealing gasket in the utility model;
Fig. 6 is the B-B cutaway view in embodiment illustrated in fig. 5;
Fig. 7 is the C-C cutaway view in embodiment illustrated in fig. 5;
Fig. 8 is Operation and Maintenance window of the present utility model and the cover plate partial structurtes schematic diagram by peripheral sealing gasket junction;
Fig. 9 is the structural representation of the another kind of execution mode of first sealing gasket of the present utility model and second sealing gasket.
Among the figure: 1. Operation and Maintenance window, 2. second sealing gasket, 3. cable, 4. first sealing gasket, 5. cover plate, 6. bolt, 7. peripheral sealing gasket, 8. entrance hole, 9. flange (side symmetry), 10. seal groove, 11. grooves, 12. flanges (side is asymmetric).
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the utility model and being implemented, but illustrated embodiment is not as to qualification of the present utility model.
Referring to Fig. 1 and Fig. 2, cable gas-tight sealing of the present utility model comprises Operation and Maintenance window 1 and cover plate 5, and Operation and Maintenance window 1 and cover plate 5 edges are provided with the cable import.In the present embodiment, the cable import has been arranged on the bottom margin of Operation and Maintenance window 1 and cover plate 5, and as required, the cable import can be arranged on any one edge of Operation and Maintenance window 1 and cover plate 5, also can the cable import be set simultaneously at a plurality of edges.
Between the Operation and Maintenance window 1 of cable import department and cover plate 5, be provided with first sealing gasket 3 and second sealing gasket 2, and the contact position at Operation and Maintenance window 1 and cover plate 5 other edges is provided with peripheral sealing gasket 7.Wherein, first sealing gasket 4 is arranged in the groove on the cover plate 5, and second sealing gasket 2 is arranged in the groove on the Operation and Maintenance window 1.As required, also can be provided with on the contrary, promptly second sealing gasket 2 is arranged in the groove on the cover plate 5, and first sealing gasket 4 is arranged in the groove on the Operation and Maintenance window 1.Have entrance hole 8 on first sealing gasket 4 and second sealing gasket 2, cable 3 can enter into equipment box inside from this entrance hole 8.As can be seen, the entrance hole 8 on first sealing gasket 4 and second sealing gasket 2 is respectively semicircle from Fig. 1 and Fig. 2, and first sealing gasket 4 and the circular entrance hole of second sealing gasket, 2 first circular entrance hole 8 relative formation.
Be fastenedly connected by bolt 6 between Operation and Maintenance window 1 and the cover plate 5, can regulate Operation and Maintenance window 1 and 5 pairs of each sealing gasket applied pressures of cover plate by bolt 6, to reach good sealing effectiveness.In addition, also can use other pressure source, assemble such as quick lockings such as buckles etc.Generally speaking, Operation and Maintenance window 1 is to be fixed on the casing of housing apparatus, and cover plate 5 can be pulled down, lose in order to prevent cover plate 5, perhaps the convenience for using can be hinged to cover plate 5 on the Operation and Maintenance window 1, unclamp nut after, can be that fulcrum is opened cover plate with the hinge, the equipment in the casing is installed or maintenance.In addition, cover plate 5 also can be connected on the Operation and Maintenance window 1 by chain or alternate manner.
As shown in Figure 3 and Figure 4, longitudinally be provided with a flange 9 on first sealing gasket 4, this flange 9 is arranged on first sealing gasket 4 and the face that second sealing gasket 2 contacts, and these flange 9 operated by rotary motion are in the horizontal centre position of contact-making surface, two sides of this flange are symmetrical, and the cross section of this flange can be that symmetries such as rectangle, trapezoidal, isosceles triangle claim structure.The described axis direction that laterally is meant entrance hole 8, and vertically be meant a direction perpendicular with the axis of entrance hole 8.
As shown in Figure 5 and Figure 6, longitudinally be provided with 12, two flanges 12 of two flanges on second sealing gasket 2 and all be arranged on second sealing gasket 2 and the face that first sealing gasket 4 contacts, form a groove 11 between two flanges 12.When first sealing gasket 4 contacted with second sealing gasket 2, the flange 9 on first sealing gasket 4 was positioned at two grooves 11 that flange 12 forms on second sealing gasket 2 just, forms excellent sealing.Especially, as shown in Figure 6, flange 12 on second sealing gasket 2 of the present utility model is asymmetrical structures, the side towards groove 11 that is flange 12 is a vertical plane, and a face that deviates from groove 11 is the inclined-plane, and the cross section of flange 12 is one or is a right-angled trapezium approx.Certainly, flange 12 also can be other unsymmetric structure, and for example its cross section can be right-angled trapezium, unsymmetric structure such as isosceles triangle not.
First sealing gasket 4 is with after second sealing gasket 2 contacts, by Operation and Maintenance window 1 and cover plate 5 it is exerted pressure, first sealing gasket 4 and second sealing gasket 2 respectively with entrance hole 8 in cable 3 closely contact, form sealing.In addition, the effect that flange 12 on second sealing gasket 2 is stressed produces distortion, because the unsymmetric structure of flange 12, flange 12 preferentially extends to the direction (being the direction of groove) of vertical side, produce transverse pressure, thereby the flange 9 on first sealing gasket 4 is tightly pushed down, filled small gas leakage gap, realize extraordinary sealing property.
As Fig. 5 and shown in Figure 7, also be provided with a flange 12 on the peripheral sealing gasket 7 of the present utility model, this flange 12 also is a unsymmetric structure, and promptly flange 12 side is a vertical plane, and another side is the inclined plane.Certainly, this flange also can be other unsymmetric structure.As shown in Figure 8, peripheral sealing gasket 7 is put into seal groove 10 on Operation and Maintenance window 1 or the cover plate 5, when exerting pressure between Operation and Maintenance window 1 and the cover plate 5, asymmetric flange 12 effect of being stressed of periphery sealing gasket 7 produces distortion, and preferentially extend to the direction of vertical side, tightly be pressed on the sidewall of seal groove 10, improved sealing property greatly.
In the present embodiment, the peripheral sealing gasket 7 and second sealing gasket 2 have connected into an integral body.Since sealing gasket generally by elasticity preferably material such as rubber make, therefore can add integrated injection molded in man-hour.The benefit that peripheral sealing gasket 7 and second sealing gasket 2 is designed to an integral body is, the peripheral sealing gasket 7 and second sealing gasket 2 have formed a complete sealing ring, between do not have the slit, install simple, good sealing effect.Certainly, also the peripheral sealing gasket 7 and first sealing gasket 4 integral body can be designed to, same effect can be played.In addition, also peripheral sealing gasket 7 can be provided with separately, but need handle slit between peripheral sealing gasket 7 other sealing gaskets when installing well, prevent gas leakage.
In order to reach better sealing effectiveness, many group first sealing gaskets 4 and second sealing gasket 2 can be set.Embodiment as shown in Figure 9 in this embodiment, is provided with two group of first sealing gasket 4 and second sealing gasket 2 respectively, and wherein, two first sealing gaskets 4 are arranged side by side together, and two second sealing gaskets 2 are arranged side by side together.First sealing gasket 4 and second sealing gasket 2 can also be crisscross arranged, and promptly one first sealing gasket 4 and one second sealing gasket 2 are arranged side by side together, and opposite side is same.When adopting more groups first sealing gaskets 4 and second sealing gasket 2, compound mode can be selected for use arbitrarily, only needs every group first sealing gasket 4 of assurance and second sealing gasket 2 to be oppositely arranged and gets final product.Can be arranged to an integral body between many group first sealing gaskets 4 and second sealing gasket 2, also can be provided with respectively.Equally, peripheral sealing gasket 7 also can be provided with a plurality of, and preferably two, the vertical side of two peripheral sealing gasket 7 upper flanges 12 is respectively towards two sidewalls of seal groove 10.
The equipment box that disposes the utility model cable gas-tight sealing is in transportation or when depositing, and when cable is less in using, can use the rubber elastomeric material identical with the cable external diameter to seal incoming line as seal plug.Except that flexible materials such as cable, the utility model also can reach good airtight effect to rigid material.Through experiment, in the sealed enclosure (being equipment box) that adopts hermetically-sealed construction of the present utility model, be inflated to 52.3Kpa (with respect to atmospheric pressure), pressurize 5 minutes, its pressure drop is less than 0.4Kpa.
The above embodiment is the preferred embodiment that proves absolutely that the utility model is lifted, and protection range of the present utility model is not limited thereto.Being equal to that those skilled in the art are done on the utility model basis substitutes or conversion, all within protection range of the present utility model.Protection range of the present utility model is as the criterion with claims.
Claims (10)
1, a kind of cable gas-tight sealing, comprise Operation and Maintenance window and cover plate, Operation and Maintenance window and side edge thereof are provided with the cable import, it is characterized in that, be provided with first sealing gasket and second sealing gasket between the Operation and Maintenance window of described cable import department and the cover plate, have entrance hole on described first sealing gasket and second sealing gasket; Longitudinally be provided with a flange on the contact-making surface of described first sealing gasket and second sealing gasket, two sides of this flange are symmetrical; Longitudinally be provided with two flanges on the contact-making surface of described second sealing gasket and first sealing gasket, form the groove that holds the described first sealing gasket upper flange between two flanges, the side of two flanges on described second sealing gasket is a unsymmetric structure.
2, cable gas-tight sealing as claimed in claim 1 is characterized in that, two flanges of described second sealing gasket are vertical plane towards the side of described groove, and the side that deviates from described groove is the inclined-plane.
3, cable gas-tight sealing as claimed in claim 1 is characterized in that, described first sealing gasket and second sealing gasket are separately positioned in the groove of described cover plate and Operation and Maintenance window.
4, cable gas-tight sealing as claimed in claim 1 is characterized in that, described first sealing gasket and second sealing gasket have many groups respectively.
5, cable gas-tight sealing as claimed in claim 4 is characterized in that, described many group first sealing gaskets and the interlaced setting of second sealing gasket.
6, cable gas-tight sealing as claimed in claim 1, it is characterized in that, also be provided with peripheral sealing gasket between the edge of described Operation and Maintenance window and cover plate, described peripheral sealing gasket is arranged in the seal groove at described Operation and Maintenance window edge place, face of described peripheral sealing gasket is provided with flange, and two sides of this flange are unsymmetric structure.
7, cable gas-tight sealing as claimed in claim 6 is characterized in that, described periphery sealing is lined with two, and the vertical side of two peripheral sealing gasket upper flanges is respectively towards two sidewalls of described seal groove.
As claim 5,6 or 7 described cable gas-tight sealings, it is characterized in that 8, described peripheral sealing gasket is connected as a whole with described first sealing gasket or second sealing gasket.
9, cable gas-tight sealing as claimed in claim 1 is characterized in that, connects by bolted between described Operation and Maintenance window and the cover plate.
10, cable gas-tight sealing as claimed in claim 9 is characterized in that, also connects by chain or hinge between described Operation and Maintenance window and the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201173510U CN201213220Y (en) | 2008-06-11 | 2008-06-11 | Gas sealing device for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201173510U CN201213220Y (en) | 2008-06-11 | 2008-06-11 | Gas sealing device for cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201213220Y true CN201213220Y (en) | 2009-03-25 |
Family
ID=40497398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201173510U Expired - Lifetime CN201213220Y (en) | 2008-06-11 | 2008-06-11 | Gas sealing device for cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201213220Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384631A (en) * | 2018-12-28 | 2020-07-07 | 佛山市威灵洗涤电机制造有限公司 | Wire sheath assembly and device with a lead-out wire |
| CN113382827A (en) * | 2019-04-23 | 2021-09-10 | 成元 | Waterproof case of battery replacement type hydraulic device |
-
2008
- 2008-06-11 CN CNU2008201173510U patent/CN201213220Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384631A (en) * | 2018-12-28 | 2020-07-07 | 佛山市威灵洗涤电机制造有限公司 | Wire sheath assembly and device with a lead-out wire |
| CN113382827A (en) * | 2019-04-23 | 2021-09-10 | 成元 | Waterproof case of battery replacement type hydraulic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8454101B2 (en) | Waterproof assembly for electronic device and watertight door thereof | |
| US20080298627A1 (en) | Water resistant audio module | |
| KR100632247B1 (en) | Bushing for transformer | |
| US20130025932A1 (en) | Waterproof assembly and device employing the same | |
| CN201213220Y (en) | Gas sealing device for cable | |
| EP3021013B1 (en) | Sealing structure | |
| CN204046987U (en) | Radio-frequency module waterproof construction and there is the radio-frequency module of this radio-frequency module waterproof construction | |
| US6528725B2 (en) | Portable electronic device | |
| WO2021017555A1 (en) | Waterproof housing for oscilloscope | |
| CN208423207U (en) | The termination of heatproof vacuum-resistant | |
| CN205355380U (en) | Disconnect -type plug structure | |
| US20230050137A1 (en) | Watertight joint and plug-in device | |
| CN203387084U (en) | High voltage distribution box for electric automobile | |
| CN201466315U (en) | Electrical connector with flange sealing and installing device | |
| JP2011119255A (en) | Connector assembly | |
| CN209876869U (en) | Sealing ring of illuminating lamp | |
| CN202617547U (en) | Sealing and explosion-proof lead wire structure between enclosed or narrow operation spaces | |
| CN217508807U (en) | Terminal device | |
| CN214045938U (en) | Microphone sealing structure and intelligent electronic equipment | |
| CN220102058U (en) | Lip-shaped mechanical sealing device with good sealing performance | |
| CN219848852U (en) | Adsorption tower sealing member and adsorption tower | |
| CN214221997U (en) | Inflation formula seal structure | |
| CN219470167U (en) | Gas circuit structure | |
| CN214227599U (en) | End cover plate for GIS | |
| CN109168106A (en) | A kind of underwater acoustic transducer with self sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090325 |
|
| CX01 | Expiry of patent term |