CN105020481A - Shield cable inletting device with annular elastic ring - Google Patents
Shield cable inletting device with annular elastic ring Download PDFInfo
- Publication number
- CN105020481A CN105020481A CN201510419311.6A CN201510419311A CN105020481A CN 105020481 A CN105020481 A CN 105020481A CN 201510419311 A CN201510419311 A CN 201510419311A CN 105020481 A CN105020481 A CN 105020481A
- Authority
- CN
- China
- Prior art keywords
- annular resilient
- resilient collar
- shielded cable
- cable leading
- leading device
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/06—Sealing by means of a swivel nut compressing a ring or sleeve
Abstract
The invention discloses a shield cable inletting device with an annular elastic ring. The shield cable inletting device with the annular elastic ring comprises a device body and a compression nut which are connected. A sealing assembly is arranged inside the device body. An intermediate body is further arranged inside the device body. The top of the intermediate body is a horizontal upper end face, the bottom of the intermediate body is a horizontal lower end face, and the intermediate body is arranged on the sealing assembly. A shrinkage hole is formed in the rear end of the device body, and the intermediate body is arranged in the shrinkage hole. The sealing assembly comprises a sealing ring, two compression rings and the annular elastic ring, wherein the annular elastic ring is arranged between the two compression rings arranged up and down, and the sealing ring is arranged on the compression rings. The shield cable inletting device with the annular elastic ring is easy and convenient to operate and is provided with a few parts; field operation is facilitated; labor time is shortened; loss of the parts is avoided; due to the horn-shaped sealing ring, high sealing reliability is ensured, and the performance of cable bending resistance is achieved at the same time.
Description
Technical field
The present invention relates to a kind of shielded cable leading device, particularly relate to the shielded cable leading device of a kind of anti-cable bend function, band annular resilient collar that sealing is strong, belong to technical field of electric equipment.
Background technique
Electromagnetic compatibility EMC (Electro Magnetic Compatibility), refers to that equipment or system meet the requirements in its elecromagnetic environment and runs the ability of intolerable electromagnetic interference of not producing any equipment in its environment.Therefore, EMC comprises the requirement of two aspects: refer to that equipment can not exceed certain limit value to the electromagnetic interference that place environment produces in normal course of operation on the one hand; Refer to that utensil has immunity to interference to a certain degree to the electromagnetic interference existed in the environment, i.e. electromagnetic susceptibility on the other hand.
In the control box/cabinets such as the communication required there being EMC, instrument and apparatus, usually need the screen layer of signaling line to realize electric continuous print equipotential link by the shell such as cable entry and casing, then shell is connected with the earth again; Can filter out the induction current on screen layer like this, thus the equipment avoided in control cabinet is subject to extraneous electromagnetic interference.In order to ensure screen layer and cable entry equipotential link as much as possible, industry generally adopts the shielded cable leading device of the annular spring ring of band at present.
As shown in Figure 1, the structure of the shielded cable leading device of the annular spring ring of existing band comprises: two hold-down rings 1 ', annular elastomeric spring coil 2 ', seal ring 3 ', device body 4 ' and rear end clamping nut 5 ', two hold-down rings 1 ', annular elastomeric spring coil 2 ' and seal ring 3 ' are fixed in device body 4 ', and rear end clamping nut 5 ' is connected with device body 4 '.
The subject matter of this kind of cable entry is as follows:
1. single part is many, and part is easily lost, and makes troubles also to in-site installation, maintenance etc.;
2. be conventional straight tube seal form, sealing range is narrow, and is single-point sealing, and reliability is poor;
3. anti-cable bend stress is weak, and sealing was easily lost efficacy.
Therefore, industry is badly in need of a kind of easy and simple to handle, avoids component to lose, and guarantees the shielded cable leading device of the high reliability sealed.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the object of the present invention is to provide a kind of shielded cable leading device with annular resilient collar, it is easy and simple to handle, be beneficial to execute-in-place, save man-hour, avoid component to lose, and guarantee the high reliability of sealing, there is anti-cable bend performance simultaneously.
To achieve these goals, technological scheme of the present invention is:
With a shielded cable leading device for annular resilient collar, it comprises interconnective device body and clamping nut, and described device body inside is provided with black box,
Described device body inside is also provided with an intermediate, and the top of described intermediate is the upper-end surface of a level, and bottom is the lower end surface of a level, and described intermediate is arranged at the top of black box; The rear end of described device body is provided with a shrinkage cavity, and described intermediate is arranged in described shrinkage cavity.
As one of preferred version of the present invention, described black box comprises a seal ring, two hold-down rings and an annular resilient collar, and described annular resilient collar is arranged between two hold-down rings setting up and down, and described seal ring is arranged at the top of hold-down ring.
Further, the upper-end surface of the lower end surface press seal circle of described intermediate is arranged.
One of preferably, the bottom of described seal ring is provided with bell-mouth structure of air, and the internal surface of seal ring is provided with a plurality of convex tendons, and outer surface is correspondingly provided with a plurality of grooves, and described groove is corresponding with the position of convex tendon arranges.
Preferably, the lower end surface place of described intermediate is provided with guiding surface or worm structure.
Preferably, described clamping nut is inverse u shape, comprises and is positioned at first end face at top and the sidewall of both sides, and inner formation inner chamber, described sidewall is provided with a step surface, described first end face is provided with afterbody shrinkage cavity.
Further, when clamping nut compresses intermediate, the step surface in clamping nut compresses the upper-end surface of intermediate, makes intermediate compression black box.
Preferably, the inner side of described hold-down ring is provided with a compression inclined-plane.
Preferred, described groove is V-type or U-shaped.
Compared with prior art, beneficial effect of the present invention is:
(1) the present invention is by intermediate, and make two hold-down rings, annular resilient collar and seal ring pre-fix in device body, form a body assembly, and whole like this product is with regard to body assembly and clamping nut two movable parts; Be beneficial to execute-in-place, simultaneously easy and simple to handle, save a large amount of on-the-spot labor hours, it also avoid the loss of component;
(2) seal ring inside is multiple convex tendon, the design of the horn mouth of outside multiple groove, can realize the multiple-sealed of more wide range inner cable and rubber parts; Ensure that the high reliability of sealing, and reduce the usage quantity of on-the-spot leading device, save cost;
(3) buffer area of anti-cable bend stress is left in clamping nut inside, and when making its cable bend, flexural stress can not be transferred to cable seal place; Reduce leading device operationally, bend the risk causing seal failure by external cable.
Accompanying drawing explanation
In order to be illustrated more clearly in structure characteristic of the present invention and technological points, below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Fig. 1 is the structural representation of shielded cable leading device of the prior art;
Fig. 2 is the structural representation of a kind of shielded cable leading device with annular resilient collar disclosed in this invention;
Fig. 3 is the structural representation of clamping nut disclosed in this invention;
Fig. 4 is the structural representation of intermediate disclosed in this invention;
Fig. 5 is the structural representation of seal ring disclosed in this invention;
Fig. 6 is the structural representation of annular resilient collar disclosed in this invention;
Fig. 7 is the structural representation of hold-down ring disclosed in this invention;
Fig. 8 is the structural representation of device body disclosed in this invention;
Fig. 9 is the application structure schematic diagram of the shielded cable leading device of band annular resilient collar disclosed in this invention.
Description of reference numerals: 1 '-hold-down ring, 2 '-annular elastomeric spring coil, 3 '-seal ring, 4 '-device body, 5 '-rear end clamping nut, 1-hold-down ring, 11-compresses inclined-plane, 2-annular resilient collar, 3-seal ring, 31-bell-mouth structure of air, 32-convex tendon, 33-groove, 4-intermediate, 41-lower end surface, 41a-guiding surface, 42-upper-end surface, 5-device body, 51-shrinkage cavity, 52-angle of deflection, 6-clamping nut, 61-first end face, 62-sidewall, 63-inner chamber, 62a-step surface, the shrinkage cavity of 61a-afterbody, 7-cable, 8-screen layer.
Embodiment
Below in conjunction with the accompanying drawing in the present embodiment, carry out specifically, clearly and completely describing to the technological scheme in embodiment.
Shown in Figure 2, be a kind of shielded cable leading device with annular resilient collar of the present embodiment, it comprises interconnective device body 5 and clamping nut 6, and it is inner that intermediate 4, seal ring 3, two hold-down rings 1 and annular resilient collar 2 are arranged at device body 5.
Shown in Figure 3, described clamping nut 6, in inverse u shape, comprises and is positioned at first end face 61 at top and the sidewall 62 of both sides, and inner formation inner chamber 63, described sidewall 62 is provided with a step surface 62a, described first end face 61 is provided with afterbody shrinkage cavity 61a.The inner chamber 63 of clamping nut 6, afterbody shrinkage cavity 61a form the buffer area of anti-cable bend stress, and when making its cable bend, flexural stress can not be transferred to cable seal place; Reduce Glan operationally, bend the risk causing seal failure by external cable.
As shown in Figure 4, be the structure of the intermediate 4 of described device body 5 inside setting.The top of described intermediate 4 is the upper-end surface 42 of a level, and bottom is the lower end surface 41 of a level, and described intermediate 4 is arranged at the top of seal ring 3.The upper-end surface of the lower end surface 41 press seal circle 3 of described intermediate 4 is arranged.Lower end surface 41 place of described intermediate 4 is provided with other modes such as guiding surface 41a or worm structure.
Black box comprises a seal ring 3, two hold-down rings 1 and an annular resilient collar 2, and described seal ring 3 is arranged at the top of hold-down ring 1, and described annular resilient collar 2 is arranged between two hold-down rings 1 setting up and down.As shown in Figure 5, the bottom of described seal ring 3 is provided with bell-mouth structure of air 31, and the internal surface of seal ring 3 is provided with a plurality of convex tendons 32, and outer surface is correspondingly provided with a plurality of grooves 33, and described groove 33 is corresponding with the position of convex tendon 32 arranges, described groove 33 is V-type or U-shaped.The inner multiple convex tendon of such seal ring 3, the horn mouth design of outside multiple groove, can realize the multiple-sealed of more wide range inner cable and rubber parts; Ensure that the high reliability of sealing, and reduce the usage quantity of on-the-spot Glan, for client provides cost savings.
As shown in Figure 6, be the structural representation of annular resilient collar.Figure 7 shows that the structural representation of hold-down ring.The inner side of described hold-down ring 1 is provided with a compression inclined-plane 11.
By intermediate 4, make two hold-down rings 1, annular resilient collar 2 and seal ring 3 pre-fix in device body 5, form a body assembly; Whole like this product, with regard to body assembly and clamping nut 6 two movable parts, is beneficial to execute-in-place, simultaneously easy and simple to handle, saves a large amount of on-the-spot labor hours, avoids the loss of component.
As shown in Figure 8, the rear end of described device body 5 is provided with a shrinkage cavity 51, and the end face of shrinkage cavity 51 is provided with angle of deflection 52, and described intermediate 4 is arranged in described shrinkage cavity 51.
When clamping nut compresses intermediate, the step surface in clamping nut compresses the upper-end surface of intermediate, makes intermediate compression black box.
Shown in Figure 9, first hold-down ring 1, annular resilient collar 2, Sealing 3 are contained in device body 5 li in advance, the bottom of intermediate 4 has protuberance, and the external diameter of this protuberance is greater than the internal diameter of shrinkage cavity 51, so, protuberance is made to insert in described shrinkage cavity 51 by the mode of interference fit; Or protuberance has outside thread, shrinkage cavity 51 has the internal thread matched, make protuberance insert in described shrinkage cavity 51 by the mode of screw-thread fit, intermediate 4 can pre-fix with device body 5 thus, forms an assembly.Certainly, intermediate 4 can also have alternate manner with the mode that pre-fixes of device body 5, is not limited to the present embodiment.
Then nut 6 is rotatably compressed, step surface 61 simultaneously in clamping nut 6 makes its compresses seal 3 with intermediate 4 upper-end surface 42, cause the compressive strain of many U/V grooves 33 after seal ring 3 pressurized, make convex tendon 32 hold cable 7 tightly, thus form many O-ring sealing functions.
Upper-lower compacting ring 1 is subject to the pressure of seal ring 3 simultaneously, makes its annular resilient collar 2 along inclined-plane 11 radial motion of hold-down ring 1, holds the screen layer 8 of cable 7 tightly, realizes the equipotential link of screen layer 8 and annular resilient collar 2.Then cable entry is connected with the earth with shell, shell, thus filters out the induction current on screen layer, thus the equipment avoided in control cabinet is subject to extraneous electromagnetic interference.
In sum, the invention has the advantages that:
(1) the present invention is by intermediate, and make two hold-down rings, annular resilient collar and seal ring pre-fix in device body, form a body assembly, and whole like this product is with regard to body assembly and clamping nut two movable parts; Be beneficial to execute-in-place, simultaneously easy and simple to handle, save a large amount of on-the-spot labor hours, it also avoid the loss of component;
(2) seal ring inside is multiple convex tendon, the design of the horn mouth of outside multiple groove, can realize the multiple-sealed of more wide range inner cable and rubber parts; Ensure that the high reliability of sealing, and reduce the usage quantity of on-the-spot leading device, save cost;
(3) buffer area of anti-cable bend stress is left in clamping nut inside, and when making its cable bend, flexural stress can not be transferred to cable seal place; Reduce leading device operationally, bend the risk causing seal failure by external cable.
Above-mentioned embodiment; be only and technical conceive of the present invention and structure characteristic are described; object is to allow the stakeholder being familiar with technique implement according to this; but above said content does not limit the scope of the invention; every any equivalence done according to Spirit Essence of the present invention changes or modifies, and all should fall within protection scope of the present invention.
Claims (9)
1. the shielded cable leading device with annular resilient collar, it comprises interconnective device body and clamping nut, and described device body inside is provided with black box, it is characterized in that,
Described device body inside is also provided with an intermediate, and the top of described intermediate is the upper-end surface of a level, and bottom is the lower end surface of a level, and described intermediate is arranged at the top of black box; The rear end of described device body is provided with a shrinkage cavity, and described intermediate is arranged in described shrinkage cavity.
2. a kind of shielded cable leading device with annular resilient collar according to claim 1, it is characterized in that, described black box comprises a seal ring, two hold-down rings and an annular resilient collar, described annular resilient collar is arranged between two hold-down rings setting up and down, and described seal ring is arranged at the top of hold-down ring.
3. a kind of shielded cable leading device with annular resilient collar according to claim 2, is characterized in that, the upper-end surface of the lower end surface press seal circle of described intermediate is arranged.
4. a kind of shielded cable leading device with annular resilient collar according to claim 2, it is characterized in that, the bottom of described seal ring is provided with bell-mouth structure of air, the internal surface of seal ring is provided with a plurality of convex tendons, outer surface is correspondingly provided with a plurality of grooves, and described groove is corresponding with the position of convex tendon arranges.
5. a kind of shielded cable leading device with annular resilient collar according to claim 1, it is characterized in that, the lower end surface place of described intermediate is provided with guiding surface or worm structure.
6. a kind of shielded cable leading device with annular resilient collar according to claim 1, it is characterized in that, described clamping nut is inverse u shape, comprise and be positioned at first end face at top and the sidewall of both sides, inner formation inner chamber, described sidewall is provided with a step surface, described first end face is provided with afterbody shrinkage cavity.
7. a kind of shielded cable leading device with annular resilient collar according to claim 6, is characterized in that, when clamping nut compresses intermediate, the step surface in clamping nut compresses the upper-end surface of intermediate, makes intermediate compression black box.
8. a kind of shielded cable leading device with annular resilient collar according to claim 2, is characterized in that, the inner side of described hold-down ring is provided with a compression inclined-plane.
9. a kind of shielded cable leading device with annular resilient collar according to claim 4, it is characterized in that, described groove is V-type or U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510419311.6A CN105020481A (en) | 2015-07-16 | 2015-07-16 | Shield cable inletting device with annular elastic ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510419311.6A CN105020481A (en) | 2015-07-16 | 2015-07-16 | Shield cable inletting device with annular elastic ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105020481A true CN105020481A (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510419311.6A Pending CN105020481A (en) | 2015-07-16 | 2015-07-16 | Shield cable inletting device with annular elastic ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105020481A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936011A (en) * | 2015-12-30 | 2017-07-07 | 华为技术有限公司 | Connector assembly and outdoor communication equipment |
| CN108183360A (en) * | 2018-02-08 | 2018-06-19 | 上海蓝科电气有限公司 | A kind of in-line connector |
| WO2020069774A1 (en) * | 2018-10-02 | 2020-04-09 | Eaton Intelligent Power Limited | Cable gland compression limiter |
| CN111370921A (en) * | 2020-03-24 | 2020-07-03 | 中航光电科技股份有限公司 | A kind of interface unit |
| CN112259994A (en) * | 2020-09-13 | 2021-01-22 | 泰州市航宇电器有限公司 | Circular water seal tail cover structure |
| WO2021089187A1 (en) * | 2019-11-06 | 2021-05-14 | Eaton Intelligent Power Limited | Bushing and cable gland including bushing |
| CN112913098A (en) * | 2018-10-12 | 2021-06-04 | 伊顿智能动力有限公司 | Cable jacket including internal baffle |
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| CN203445580U (en) * | 2013-08-28 | 2014-02-19 | 上海蓝科电气有限公司 | Cable waterproof joint |
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| CN104779575A (en) * | 2015-05-08 | 2015-07-15 | 魏德米勒电联接（上海）有限公司 | Self-sealing cable transition sleeve and cable entry device |
| CN204986037U (en) * | 2015-07-16 | 2016-01-20 | 魏德米勒电联接（上海）有限公司 | Shielded cable introducing device of belt wheel shape elastic ring |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936011B (en) * | 2015-12-30 | 2020-06-02 | 华为技术有限公司 | Connector assembly and outdoor communication equipment |
| CN106936011A (en) * | 2015-12-30 | 2017-07-07 | 华为技术有限公司 | Connector assembly and outdoor communication equipment |
| CN108183360A (en) * | 2018-02-08 | 2018-06-19 | 上海蓝科电气有限公司 | A kind of in-line connector |
| WO2020069774A1 (en) * | 2018-10-02 | 2020-04-09 | Eaton Intelligent Power Limited | Cable gland compression limiter |
| US10714922B2 (en) | 2018-10-02 | 2020-07-14 | Eaton Intelligent Power Limited | Cable gland compression limiter |
| US11637419B2 (en) | 2018-10-02 | 2023-04-25 | Eaton Intelligent Power Limited | Cable gland compression limiter |
| CN112889193A (en) * | 2018-10-02 | 2021-06-01 | 伊顿智能动力有限公司 | Cable fixing head compression limiter |
| CN112913098A (en) * | 2018-10-12 | 2021-06-04 | 伊顿智能动力有限公司 | Cable jacket including internal baffle |
| US11855422B2 (en) | 2018-10-12 | 2023-12-26 | Eaton Intelligent Power Limited | Cable gland including internal dam |
| CN114731034A (en) * | 2019-11-06 | 2022-07-08 | 伊顿智能动力有限公司 | Bushing and cable gland comprising a bushing |
| WO2021089187A1 (en) * | 2019-11-06 | 2021-05-14 | Eaton Intelligent Power Limited | Bushing and cable gland including bushing |
| US11721958B2 (en) | 2019-11-06 | 2023-08-08 | Eaton Intelligent Power Limited | Bushing and cable gland including bushing |
| CN111370921B (en) * | 2020-03-24 | 2021-07-30 | 中航光电科技股份有限公司 | A kind of interface unit |
| CN111370921A (en) * | 2020-03-24 | 2020-07-03 | 中航光电科技股份有限公司 | A kind of interface unit |
| CN112259994B (en) * | 2020-09-13 | 2022-03-25 | 泰州市航宇电器有限公司 | Circular waterproof sealing tail cover structure |
| CN112259994A (en) * | 2020-09-13 | 2021-01-22 | 泰州市航宇电器有限公司 | Circular water seal tail cover structure |
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