CN105020483B - Sealing structure for cable outgoing hole of electric device - Google Patents

Sealing structure for cable outgoing hole of electric device Download PDF

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Publication number
CN105020483B
CN105020483B CN201410166036.7A CN201410166036A CN105020483B CN 105020483 B CN105020483 B CN 105020483B CN 201410166036 A CN201410166036 A CN 201410166036A CN 105020483 B CN105020483 B CN 105020483B
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CN
China
Prior art keywords
cable
electric device
hole
shaped
special
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Expired - Fee Related
Application number
CN201410166036.7A
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Chinese (zh)
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CN105020483A (en
Inventor
李志刚
李�杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Sinoko Automation Control Technology Co ltd
Original Assignee
De Fu (xuzhou) Control Technology Co
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Priority to CN201410166036.7A priority Critical patent/CN105020483B/en
Publication of CN105020483A publication Critical patent/CN105020483A/en
Application granted granted Critical
Publication of CN105020483B publication Critical patent/CN105020483B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02Sealing
    • F16L5/08Sealing by means of axial screws compressing a ring or sleeve

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention provides a sealing structure for a cable outgoing hole of an electric device. The sealing structure comprises an insulating gasket, a cable lug rubber protecting column, special-shaped metal pressing rings, special-shaped rubber sealing rings, spring washers and a hollow pressing screwed plug. According to the sequence that the parts are installed in the cable outgoing hole, firstly, wires in the electric device sequentially penetrate the insulating gasket and the cable lug rubber protecting column; next, the hollow pressing screwed plug, the spring washers, the special-shaped metal pressing rings and the special-shaped rubber sealing rings are arranged on the cable in a sleeving mode one by one; then, core wires of the cable are connected with the wires in the electric device to form a string-shaped connected body; and finally, the string-shaped connected body is pushed into the cable outgoing hole of the electric device, the string-shaped connected body and the cable outgoing hole of the electric device are connected and screwed down through the hollow pressing screwed plug with threads and hole opening threads of the electric device, and therefore all the parts can be compressed, the special-shaped rubber sealing rings can generate elastic squeezing, gaps in the hole are squeezed due to inner retraction and outer expansion, and sealing is achieved. The sealing structure is practical, reliable and excellent in waterproof effect.

Description

A kind of electric device cable outlet hole sealing structure
Technical field
The present invention relates to a kind of sealing structure, particularly relate to a kind of electric device cable outlet hole sealing structure.
Background technology
The electric signal that electric device installed outdoors, its internal circuit and element produce will be by the electricity with screen layer Cable exports, and cable is to be drawn by the outlet aperture on electric device housing.Use environment bar due to electric device Part is more severe, wet by the rain and burnt by the sun, easily intakes and impregnated by ponding at cable outlet, thus damaging the circuit electricity of inside Gas element, leads to electric device to lose function or reduce its service precision, affects its service life and usage cycles, existing Encapsulating method all can not reach the sealing effectiveness of this sealing structure, can not meet some electric devices higher to seal request Need, the problems referred to above need to improve.
Content of the invention
It is an object of the invention to provide a kind of electric device cable outlet hole sealing structure, solve to seal at cable outlet Effect on driving birds is not good, easily water inlet and impregnated by ponding, thus damaging electric elements inside, lead to electric device lose function or Person reduces the problem of its service precision.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
The present invention provides a kind of electric device cable outlet hole sealing structure, and this cable outlet hole sealing structure includes carrying The insulating washer of several apertures, the cable lug rubber guard post with several apertures, several centres are round-meshed Special-shaped metal trim ring, several middle round-meshed shaped rubber sealing rings, round-meshed spring shims in the middle of several The round-meshed hollow compression plug with centre, the order that above-mentioned part is arranged on electric device outlet in the hole is first will electrically The aperture that device inner lead passes through in insulating washer passes through insulating washer, then by the aperture in cable lug rubber guard post Through cable lug rubber guard post, then by hollow compression plug, spring shim, special-shaped metal trim ring and shaped rubber sealing Circle is set on multi-core cable wire one by one, and wherein special-shaped metal trim ring, shaped rubber sealing ring intersect and load electric device outlet In the hole simultaneously occurs in pairs, and spring shim is also paired appearance and the mutually mode of withholding is set on shielded multiconductor cable line, then Each for cable line is connected with electric device inner lead respectively formation terminal, and makes each terminal be in cable to connect In each string holes of the end of a thread rubber guard post, form " string-like " connector, finally again " string-like " connector is slowly pushed electric dress The cable outlet in the hole put, and threadeded with electric device aperture and tightened with screwed hollow compression plug, thus Compress each part, make shaped rubber sealing ring produce elasticity extruding, inside contract and rise outward, make in the hole space asphyxia by external pressure on the chest and abdomen, reach sealing.
Further improvement of the present invention is:This cable outlet hole sealing structure also includes the round-meshed electricity in centre Cable screen layer metal platen, the order that above-mentioned part is arranged on electric device outlet in the hole is to lead inside electric device first The aperture that line passes through in insulating washer passes through insulating washer, then is connect through cable by the aperture in cable lug rubber guard post The end of a thread rubber guard post, then by hollow compression plug, spring shim, special-shaped metal trim ring, shaped rubber sealing ring and cable Screen layer metal platen is set on shielded multiconductor cable line one by one, strips out cable screen layer simultaneously, and is pressed in cable Between screen layer metal platen and bottom one special-shaped metal trim ring, then by each for cable heart yearn respectively with electric device Inner lead connects formation terminal, and so that each terminal is in each string holes of cable lug rubber guard post, is formed One " string-like " connects entirety, and above-mentioned " string-like " connector finally slowly pushes the cable outlet in the hole of electric device again, And threadeded with electric device aperture and tightened with screwed hollow compression plug, thus compressing each part, make special-shaped rubber Glue sealing ring produces elasticity extruding, inside contracts and rises outward, makes in the hole space asphyxia by external pressure on the chest and abdomen, reach sealing.
Further improvement of the present invention is:Spring shim is bowl-type.
Further improvement of the present invention is:The number of special-shaped metal trim ring, shaped rubber sealing ring and spring shim by The length of electric device wire hole and seal degree determine.
Beneficial effects of the present invention:In this sealing structure, shaped rubber sealing ring is directly to produce sealing function, hollow Compression plug, spring shim and special-shaped metal trim ring are to seal indirectly-acting, i.e. generation and transmit extruding force, make rubber Circle jam-packed is closely knit, and insulating washer acts primarily as thrust function and insulating effect, and cable screen layer metal platen is compression cable Screen layer, do not play insulating effect, cable lug rubber guard post is protection electric device internal wire and extraction cable Between jointing so that its closing insulation, also play part sealing function simultaneously.Squeezed by shaped rubber sealing ring Tightly, substantially increase seal degree, generally, be not likely to enter inside electric device by the immersion of this sealing device, this Sample ensure that electric device in the presence of a harsh environment can reliably, stable use, long period of soaking all without water inlet, sealing effectiveness is General sealing structure and fluid sealant are incomparable.
Present configuration is novel, practical reliable it is therefore prevented that at cable outlet easily water inlet and damage electric elements inside, Electric device is led to lose function or the situation generation reducing its service precision, waterproof effect is splendid.
Brief description
Fig. 1 is the assembling schematic diagram of cable outlet hole of the present invention sealing structure.
Fig. 2 is the assembling schematic diagram of the cable outlet hole sealing structure with screen layer.
Wherein:1- insulating washer, 2- cable lug rubber guard post, 3- cable screen layer metal platen, the special-shaped gold of 4- Belong to trim ring, 5- shaped rubber sealing ring, 6- spring shim, 7- hollow compression plug, 8- screen layer, 9- cable, 10- wire connects Head, 11- electric device inner lead, 12- electric device.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with drawings and Examples, the present invention is made to retouch in detail further State, the present embodiment is only used for explaining the present invention, protection scope of the present invention is not constituted and limits.
As shown in figure 1, the present embodiment provides a kind of electric device cable outlet hole sealing structure, this cable goes out embodiment 1 String holes sealing structure includes the insulating washer 1 with several apertures, the cable lug rubber guard post with several apertures 2nd, round-meshed abnormal shape metal trim rings 4 in the middle of several, round-meshed shaped rubber sealing rings 5 in the middle of several, some The round-meshed spring shim 6 in individual centre and middle round-meshed hollow compression plug 7, above-mentioned part is arranged on electric device The order of 12 outlet in the holes is first electric device 12 inner lead 11 to be passed through the aperture in insulating washer 1 to pass through insulating washer 1, then cable lug rubber guard post 2 is passed through by the aperture in cable lug rubber guard post 2, then by hollow compression plug 7th, spring shim 6, special-shaped metal trim ring 4 and shaped rubber sealing ring 5 are set on multi-core cable wire 9 one by one, wherein said different Type metal trim ring 4, shaped rubber sealing ring 5 intersect and load electric device 12 outlet in the hole and occur in pairs, described spring shim 6 Be also paired occur and the mutually mode of withholding is set on shielded multiconductor cable line 9, then by each for cable 9 line respectively with electrically Device inner lead 11 connects and forms terminal 10, and it is each to make each terminal 10 be in cable lug rubber guard post 2 In string holes, form " string-like " connector, finally more described " string-like " connector is slowly pushed the cable of electric device 12 Line 9 exports in the hole, and is threadeded with electric device 12 aperture and tightened with screwed hollow compression plug 7, thus compressing Each part, makes shaped rubber sealing ring 5 produce elasticity extruding, inside contracts and rise outward, make in the hole space asphyxia by external pressure on the chest and abdomen, reach sealing, described bullet Spring pad 6 is bowl-type, and described abnormal shape metal trim ring 4, shaped rubber sealing ring 5 and spring shim 6 number are by electric device outlet The length in hole and seal degree determine, in the present embodiment, special-shaped metal trim ring 4 number is 3, and shaped rubber sealing ring 5 number is 3, spring shim 6 number is 8.
Embodiment 2 is as shown in Fig. 2 for adapting to the sealing needs of the cable entry port with screen layer, the sealing of this cable outlet hole is tied Structure also includes a centre round-meshed cable screen layer metal platen 3, described insulating washer 1 and cable lug rubber Respectively there are multiple through wires holes the centre of guard post 2, and described cable screen layer metal platen 3, special-shaped metal trim ring 4, shaped rubber are close Seal 5, spring shim 6 and hollow compression plug 7 are annular, and cable can be passed through in centre, and above-mentioned part is arranged on electrically The order of device outlet in the hole is first electric device 12 inner lead 11 to be passed through the aperture in insulating washer 1 to pass through felt pad Circle 1, then cable lug rubber guard post 2 is passed through by the aperture in cable lug rubber guard post 2, then by hollow compression silk Stifled 7, spring shim 6, special-shaped metal trim ring 4, shaped rubber sealing ring 5 and cable screen layer metal platen 3 are set on one by one On shielded multiconductor cable line 9, the screen layer 8 of cable 9 is stripped out simultaneously, and be pressed in cable screen layer metal platen 3 with Between the special-shaped metal trim ring 4 of following one, then by each for cable heart yearn, each wire internal with electric device 12 connects respectively Form terminal 10, and so that each terminal 10 is in each string holes of cable lug rubber guard post 2, form " a string Shape " connects entirety, above-mentioned " string-like " connector finally slowly pushes the cable 9 outlet in the hole of electric device 12 again, is used in combination Screwed hollow compression plug 7 is threadeded with electric device aperture and is tightened, thus compressing each part, makes shaped rubber close Seal 5 produces elasticity extruding, inside contracts and rises outward, makes in the hole space asphyxia by external pressure on the chest and abdomen, reach sealing, and described spring shim 6 is bowl-type, described different Type metal trim ring 4, shaped rubber sealing ring 5 and spring shim 6 number are true by the length of electric device wire hole and seal degree Fixed, in the present embodiment, special-shaped metal trim ring 4 number is 3, and shaped rubber sealing ring 5 number is 3, and spring shim 6 number is 8 Individual.
The sealing principle of cable outlet hole sealing structure:Insulating washer 1, cable lug rubber guard post 2, cable shields Layer metal platen 3, special-shaped metal trim ring 4, shaped rubber sealing ring 5, spring shim 6, hollow compression plug 7 all parts are installed It is first electric device inner lead 11 to pass through the aperture in insulating washer 1 to pass through absolutely in the order of electric device outlet in the hole Edge packing ring 1, then cable lug rubber guard post 2 is passed through by the aperture in cable lug rubber guard post 2, then by hollow pressure Tight plug 7, spring shim 6, special-shaped metal trim ring 4, shaped rubber sealing ring 5 and cable screen layer metal platen 3 are worn one by one It is enclosed within shielded multiconductor cable line 9, the screen layer 8 of cable 9 is stripped out simultaneously, and be pressed in cable screen layer metal platen 3 And bottom one special-shaped metal trim ring 4 between, after seven parts load outlet in the hole, periphery is hole wall, and inner ring is cable Line 9, by tightening hollow compression plug 7, compressing bowl-type spring shim 6, due to pressure transmission, oppresses special-shaped metal trim ring then 4, compressing shaped rubber sealing ring 5, special-shaped metal trim ring 4, shaped rubber sealing ring 5, special-shaped metal trim ring 4, cable screen again Cover a layer metal platen 3, shaped rubber sealing ring 5, cable lug rubber guard post 2, until insulating washer 1, due to rubber ring quilt After pressure, producing elastic deformation, rise outward and inside contract, thus being crowded with all in the hole spaces, blocking immersion passage, immersion just can not enter electricity Inside device of air, meanwhile press screen layer 8, the cable lug rubber guard post 2 of cable again, both protect electric wire to connect Head, in turn ensure that insulation, and the erection sequence of each part, position and direction must be installed according to shown in accompanying drawing.
Present configuration is novel, and practical reliability is it is therefore prevented that cable 9 exit easily intakes and damages internal electric unit Part, leads to electric device to lose function or the situation generation reducing its service precision.In this sealing structure, shaped rubber seals Circle is direct generation sealing function, and hollow compression plug, spring shim and special-shaped metal trim ring are to having sealed indirectly-acting , that is, produce and transmission extruding force, make rubber ring jam-packed closely knit, insulating washer acts primarily as thrust function and insulating effect, cable Line screen layer metal platen is the screen layer of compression cable, does not play insulating effect, and cable lug rubber guard post is protection Jointing between electric device internal wire and extraction cable, so that its closing insulation, also play part sealing simultaneously Effect.By shaped rubber sealing ring by jam-packed, substantially increase seal degree, generally, soaked by this sealing structure Water is not likely to enter inside electric device, this ensures that there electric device in the presence of a harsh environment can reliably, stable use, long Phase soaks all without water inlet, and sealing effectiveness is general sealing structure and fluid sealant is incomparable, with this sealing structure to electric Device is sealed, and is placed in water after invading the hundreds of hours of bubble, does not have any infiltration phenomenon, inner member stands intact, waterproof is imitated Really splendid.

Claims (4)

1. a kind of electric device cable outlet hole sealing structure it is characterised in that:This cable outlet hole sealing structure includes carrying The insulating washer of several apertures(1), with several apertures cable lug rubber guard post(2), carry in the middle of several The special-shaped metal trim ring of circular hole(4), round-meshed shaped rubber sealing rings in the middle of several(5), in the middle of several with circle The spring shim in hole(6)The round-meshed hollow compression plug with centre(7), above-mentioned part is arranged on electric device(12)Outlet The order of in the hole is first by electric device (12) inner lead(11)By insulating washer(1)In aperture pass through insulating washer (1), then pass through cable lug rubber guard post(2)In aperture pass through cable lug rubber guard post(2), then by hollow pressure Tight plug(7), spring shim(6), special-shaped metal trim ring(4)With shaped rubber sealing ring(5)It is set on multi-core cable wire one by one (9)On, wherein said abnormal shape metal trim ring(4), shaped rubber sealing ring(5)Intersect and load electric device(12)Outlet in the hole is simultaneously Occur in pairs, described spring shim(6)It is also paired to occur and the mutually mode of withholding is set on multi-core cable wire(9)On, then By cable(9)Each line respectively with electric device inner lead(11)Connect formation terminal(10), and make each terminal (10)It is in cable lug rubber guard post(2)In each string holes, form " string-like " connector, finally again by described " string Shape " connector slowly pushes electric device(12)Cable(9)Outlet in the hole, and with screwed hollow compression plug (7)With electric device(12)Aperture is threaded to tighten, thus compressing each part, makes shaped rubber sealing ring(5)Produce elasticity Extruding, inside contracts and rises outward, make in the hole space asphyxia by external pressure on the chest and abdomen, reach sealing.
2. a kind of electric device cable outlet hole sealing structure according to claim 1 it is characterised in that:This cable outlet Hole sealing structure also includes a centre round-meshed cable screen layer metal platen(3), above-mentioned part is arranged on electrically Device(12)The order of outlet in the hole is first by electric device inner lead(11)By insulating washer(1)In aperture pass through Insulating washer(1), then pass through cable lug rubber guard post(2)In aperture pass through cable lug rubber guard post(2), then By hollow compression plug(7), spring shim(6), special-shaped metal trim ring(4), shaped rubber sealing ring(5)With cable screen layer Metal platen(3)It is set on shielded multiconductor cable line one by one(9)On, simultaneously by cable(9)Screen layer(8)Strip out, and press In cable screen layer metal platen(3)The special-shaped metal trim ring with bottom(4)Between, then by cable(9)Respectively Heart yearn respectively with electric device inner lead(11)Connect formation terminal(10), and make each terminal(10)It is in electricity Cable connector lug rubber guard post(2)In each string holes, form one " string-like " and connect entirety, finally more above-mentioned " string-like " connector is delayed Delay and push electric device(12)Cable(9)Outlet in the hole, and with screwed hollow compression plug(7)With electric device Aperture is threaded to tighten, thus compressing each part, makes shaped rubber sealing ring(5)Produce elasticity extruding, inside contract and rise outward, make hole Internal pore asphyxia by external pressure on the chest and abdomen, reaches sealing.
3. a kind of electric device cable outlet hole sealing structure according to claim 1 and 2 it is characterised in that:Described bullet Spring pad(6)For bowl-type.
4. a kind of electric device cable outlet hole sealing structure according to claim 1 and 2 it is characterised in that:Described different Type metal trim ring(4), shaped rubber sealing ring (5) and spring shim(6)Number by the length of electric device wire hole and close Envelope degree determines.
CN201410166036.7A 2014-04-24 2014-04-24 Sealing structure for cable outgoing hole of electric device Expired - Fee Related CN105020483B (en)

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Application Number Priority Date Filing Date Title
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CN105020483B true CN105020483B (en) 2017-02-22

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CN111350880A (en) * 2020-03-31 2020-06-30 广船国际有限公司 Watertight cabin penetrating assembly with sealing adjusting function and installation method
CN112325956A (en) * 2020-10-12 2021-02-05 南京中宇自动化有限公司 Induction type high-temperature gas-solid two-phase flow measuring instrument and measuring method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810832A (en) * 1986-09-30 1989-03-07 Spinner Gmbh, Elektrotechnische Fabrik Sealed cable connector
CN2080238U (en) * 1990-05-21 1991-07-03 郭晓云 Sealed detachable cable joint
US7115822B1 (en) * 2006-02-21 2006-10-03 Joy Mm Delaware, Inc. Indirect entry cable gland assembly
CN2831555Y (en) * 2005-10-28 2006-10-25 上海连成(集团)有限公司 Integrated cable sheathing
EP1978616A1 (en) * 2007-04-06 2008-10-08 Ksb S.A.S Wall bushing and manufacturing method thereof
CN203445584U (en) * 2013-09-06 2014-02-19 中国石油集团西部钻探工程有限公司 Single core cable sealing connecting device
CN203481772U (en) * 2013-08-14 2014-03-12 长缆电工科技股份有限公司 Waterproof intermediate joint for butt joint of power cables
CN203797167U (en) * 2014-04-24 2014-08-27 德卡富(徐州)测控技术有限公司 Electric apparatus cable outlet hole sealing structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810832A (en) * 1986-09-30 1989-03-07 Spinner Gmbh, Elektrotechnische Fabrik Sealed cable connector
CN2080238U (en) * 1990-05-21 1991-07-03 郭晓云 Sealed detachable cable joint
CN2831555Y (en) * 2005-10-28 2006-10-25 上海连成(集团)有限公司 Integrated cable sheathing
US7115822B1 (en) * 2006-02-21 2006-10-03 Joy Mm Delaware, Inc. Indirect entry cable gland assembly
EP1978616A1 (en) * 2007-04-06 2008-10-08 Ksb S.A.S Wall bushing and manufacturing method thereof
CN203481772U (en) * 2013-08-14 2014-03-12 长缆电工科技股份有限公司 Waterproof intermediate joint for butt joint of power cables
CN203445584U (en) * 2013-09-06 2014-02-19 中国石油集团西部钻探工程有限公司 Single core cable sealing connecting device
CN203797167U (en) * 2014-04-24 2014-08-27 德卡富(徐州)测控技术有限公司 Electric apparatus cable outlet hole sealing structure

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Effective date of registration: 20180724

Address after: 221000 2 xuanshang Road, Sanhuan West Road, Quanshan Road, Quanshan District, Xuzhou, Jiangsu

Patentee after: XUZHOU SINOKO AUTOMATION CONTROL TECHNOLOGY CO.,LTD.

Address before: 221116 Galaxy Road, Second Industrial Park, Copper Mt. Economic Development Zone, Xuzhou, Jiangsu

Patentee before: DEKAFU (XUZHOU) MEASUREMENT AND CONTROL TECHNOLOGY CO.,LTD.

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Granted publication date: 20170222