A kind of automobile wiring harness sheath
Technical field
The present invention relates to a kind of automotive wire bundle field, be specifically related to a kind of automobile wiring harness sheath.
Background technology
Because automotive engine harness is positioned at driver's cabin outdoor; instrument desk wire harness is positioned at driver's cabin indoor; communication is there is between engine wire harness with instrument desk wire harness; so when engine wiring harness enters in driver's cabin through cab floor panel beating, rubber sheath is usually used to cut from panel beating for the protection of wire harness herein.
As shown in Figure 1 and Figure 2; existing wire harness is through body platform stamping holes; because body platform panel beating 7 is steel plate; it is insulated hull outside wire harness; wire harness insulated hull is easily cut by floor panel beating; and play the effect of protection wire harness by the rubber sheath 6 be embedded on panel beating, prevent body platform panel beating 7 from being cut by overall wire sheaves, and then cause wire harness safety problem.The rubber sheath 6 that existing automotive wire bundle uses, on rubber sheath 6, generally design the rectangle groove 61 that panel beating can be made to embed, the mode coordinated with rectangle groove 61 by body platform panel beating 7 realizes fixing.But there is its own shortcomings in this rubber sheath 6:
1. rubber sheath is without fixed hole position, and only adopt the fixed form that extruding compresses, extruding force is little, and rubber sheath is fixing not firm, after using for a long time, easily comes off.And the vibration existed in vehicle travel process, rubber sheath can be caused to there is nondirectional left and right micro-displacement, rubber sheath is subject to the active force (emphasis is the power of left and right directions moment change) from body platform panel beating, long-term friction between such rubber sheath and panel beating, causes rubber sheath to decline useful life.
2. the thrust of rubber sheath and panel beating vertical direction is very little, and automobile storage is in vibration, and easily intake by rectangular recess, sealing effectiveness is poor.
3. rubber sheath is overall is elastomeric material entirely, and do not have other reinforced members, intensity is poor.
Summary of the invention
In order to solve the problem, the invention provides a kind of fixing reliable, good sealing effect, intensity is high, vibration deformation quantity is little, the automobile wiring harness rubber sheath that the life-span is long.
Technical scheme for the employing that achieves the above object:
A kind of automobile wiring harness sheath, it comprises rubber sleeve and two semiorbicular fixed covers, described rubber sleeve comprises body, stretch into portion and flange, describedly stretch into portion, described flange and described body are connected as a single entity, the described portion of stretching into is cylindric, the described external diameter stretching into portion is greater than the external diameter of described body, the fixing hole of the described outer circumferential walls and Metal Sheets for Body-manufacturing that stretch into portion coordinates, fit in the lower surface of described flange and the surface of described Metal Sheets for Body-manufacturing, two described fixed covers block the groove of described rubber sleeve and fit with the upper surface of described flange and side, described fixed cover, described flange and described Metal Sheets for Body-manufacturing are bolted.
Selectable, the inward flange of described fixed cover has flange upwards, and described flange and described groove fit realize clamping.
Selectable, two described fixed covers are fixedly connected with.
Selectable, described in be fixedly connected with and realized by following manner: one end of two described fixed covers has barb, and the other end has the square hole coordinated with described barb.
Selectable, two described fixed covers have one end tilting of square hole.
Selectable, described flange is Flange-shaped Parts.
Selectable, described flange has the cascaded surface in vertical axial direction, and upper end is boss-shaped, and this boss-shaped structure coordinates with described fixed cover.
Selectable, described fixed cover, described flange have for bolted installing hole, and the number of described installing hole is 2, and one of them is mounting hole.
Selectable, described in stretch into portion lower surface there is multiple blind hole.
Selectable, described blind hole is trapezoidal hole, and the center stretching into portion relatively distributes axisymmetricly.
Selectable, the body of described rubber sleeve has helical structure or ripple struction.
Selectable, the surface of described fixed cover has antirust coat.
Beneficial effect of the present invention:
Only rubbery material parts is had relative to existing rubber sheath, wire harness sheath of the present invention adds fixed cover structure, automobile wiring harness sheath comprises rubber sleeve and two fixed covers, rubber sleeve has the groove coordinated with fixed cover inward flange, two fixed covers block groove and are covered, groove has good positioning function, makes fixed cover not easily play occur, and fixed cover, rubber sleeve and Metal Sheets for Body-manufacturing are bolted and realize fixing.With boltsly achieve the reliable fixing of wire harness sheath, this fixed cover structure plays the effect of reinforcement, skeleton to rubber, enhance the structural strength of wire harness sheath entirety and fixing reliability; And rubber sleeve coordinates with fixed cover and defines a stressed entirety, have wear-resisting, damping, shock proof feature, after bolt tightening, the flange lower surface of rubber sleeve and the intimate surface of Metal Sheets for Body-manufacturing are fitted, and have good sealing.
Further, the inward flange of fixed cover has flange, and flange increases the local contact area of inward flange and body, namely increases lifting surface area, places and snap-fit engagement is herein stablized, reduce stress and concentrate, both reduced the damage to body simultaneously.
Further, two fixed covers connect as a whole, define the skeleton of stability, enhance overall construction intensity.The two ends of fixed cover have barb and square hole respectively, and the barb of a fixed cover coordinates with the square hole of another fixed cover the connection achieving two fixed covers, just can realize fixing by mechanical connection, and structure is simple, reliable.
Further, one end that fixed cover has square hole tilts, and is convenient to the installation of two fixed cover barbs and square hole, tilts and makes mating surface be curved surface, when there is vibration, still can ensure to coordinate closely.
Further, flange is Flange-shaped Parts, increases the contact area on flange and Metal Sheets for Body-manufacturing surface, and the installing hole place of wire harness sheath is not easily torn.
Further, the upper end of flange is boss-shaped, the side of flange is only partly covered, ensure that with vehicle body contact site be rubber entity part, if the side of flange is completely encased, under the urgent state of assembling, the lower limb of whole fixed cover can contact Metal Sheets for Body-manufacturing, makes overall sealing property not good.
Further, one of them installing hole is mounting hole, ensure that when Metal Sheets for Body-manufacturing produces certain mismachining tolerance, still can realize assembling, have good adjustability.
Further, the lower surface stretching into portion has multiple blind hole, ensure that wire harness can more easily pass body, and wire harness is worn in sheath process, coordinates staving press, this structural design, through the wire harness than Circularhole diameter more overstriking, can be more prone to threading.And hollow out process can material saving, reduce costs, be beneficial to car load simultaneously and fall heavily.
Further, the trapezoidal hole that blind hole distributes axisymmetricly for the center stretching into portion described in relatively, takes this structure to make the die sinking stress distribution in the portion that stretches into even.
Further, body is helical structure or ripple struction, has good scalability, and when the wire harness of body pulls, rubber sheath helical structure or ripple struction can stretch, and what wire harness can realize certain limit pulls adjustment.
Further, the antirust coat on fixed cover surface has antirust, etch-proof function, enhances the useful life of part.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art rubber sheath;
Fig. 2 is the assembling schematic diagram of prior art rubber sheath;
Fig. 3 is the three-dimensional exploded view (looking up) of embodiment of the present invention automobile wiring harness sheath;
Fig. 4 is the three-dimensional exploded view (overlooking) of embodiment of the present invention automobile wiring harness sheath;
Fig. 5 is the overall structure figure of embodiment of the present invention automobile wiring harness sheath;
Fig. 6 is the three-dimensional exploded view that embodiment of the present invention automobile wiring harness sheath and Metal Sheets for Body-manufacturing assemble;
Fig. 7 is the schematic diagram that embodiment of the present invention automobile wiring harness sheath and Metal Sheets for Body-manufacturing assemble.
Description of reference numerals: 1-automobile wiring harness sheath, 2-rubber sleeve, 21-wire harness through hole, 22-body, 221-ripple struction, 23-stretches into portion, 231-blind hole, 24-flange, 241-upper surface, 242-lower surface, 243-side, 244-cascaded surface, 245-circular hole, 246-mounting hole, 25-groove, 3-first fixed cover, 3a-second fixed cover, 31-inward flange, 32-flange, 33-barb, 34-square hole, 35-tilts, 36-fixed cover circular hole, 37-fixed cover mounting hole, 38-flaring, 4-Metal Sheets for Body-manufacturing, 41-surface, 42-bolt, 43-fixing hole, 5-nut, 6-rubber sheath, 61-rectangle groove, 7-underbody panel beating.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
As seen in figures 3-5, automobile wiring harness sheath 1 comprises rubber sleeve 2 and two semiorbicular fixed covers, and these two fixed covers are respectively the first fixed cover 3, second fixed cover 3a.Rubber sleeve 2 comprises body 22, stretches into portion 23, flange 24 and groove 25, stretch into portion 23, flange 24 is connected as a single entity with body 22, stretch into portion 23 in cylindric, the external diameter stretching into portion 23 is greater than the external diameter of body 22, the fixing hole 43 of this outer circumferential walls and Metal Sheets for Body-manufacturing 4 of stretching into portion 23 coordinates, the lower surface 242 of flange 24 is fitted with the surface 41 of Metal Sheets for Body-manufacturing 4, and the first fixed cover 3 and the second fixed cover 3a block the groove 25 of rubber sleeve 2 and fit with the upper surface 241 of flange 24 and side 243.The minimum disc diameter of flange 24 is greater than the diameter of the fixing hole 43 of Metal Sheets for Body-manufacturing 4, the diameter stretching into portion 23 is less than the diameter of the fixing hole 43 of Metal Sheets for Body-manufacturing 4, and namely the size of the fixing hole 43 of Metal Sheets for Body-manufacturing 4 is between flange 24 smallest circle diameter with stretch between portion 23 diameter.The position of groove 25 makes the upper surface 241 of two fixed covers and flange 24 fit, and the size of groove 25 makes two fixed covers vertically can by good location, and the size at groove 25 place place can be greater than the external diameter of body 22 to reach firm support effect.The inward flange 31 of the first fixed cover 3 can directly coordinate with the groove 25 of rubber sleeve 2, and inward flange 31 also can have flange 32, and preferably, the inward flange 31 of fixed cover has flange 32 upwards, and flange 32 coordinates with groove 25 and realizes clamping.Inward flange 31 structure of the second fixed cover 3a is also like this.Flange 24 and the Metal Sheets for Body-manufacturing 4 of the first fixed cover 3, second fixed cover 3a, rubber sleeve 2 are bolted.Fixed cover, flange 24 have for bolted installing hole, and preferably, the number of installing hole is 2, and one of them is mounting hole, and this mounting hole makes wire harness sheath have good adjustability.
Can be connectionless between first fixed cover 3 and the second fixed cover 3a, namely connect realization by means of only final bolt and be adjacent to, but this structural instability.Two fixed covers can also be adopted between the two to be fixedly connected with, and two fixed covers connect as a whole, define the skeleton of stability, enhance overall construction intensity.The connection of two fixed covers can be realized by modes such as welding, riveted joint, bonding, clampings.Preferably, first fixed cover 3 is realized by following manner with the second being fixedly connected with of fixed cover 3a: one end of the first fixed cover 3 has barb 33, the other end has the square hole 34 coordinated with barb 33, second fixed cover 3a is also like this, the barb 33 of a fixed cover coordinates with the square hole 34 of another fixed cover the connection achieving two fixed covers, just can realize fixing by mechanical connection, structure is simple, reliable.The contact-making surface of two fixed covers and flange 24 upper surface 241 can be plane or curved surface.Preferably, two fixed covers have one end tilting of square hole 34, are convenient to the installation of two fixed cover barbs and square hole, tilt 35 and make mating surface be curved surface, when there is vibration, still can ensure that cooperation is tight.
The outline of flange 24 can be circular or other shapes, and preferably, flange 24 is Flange-shaped Parts, increases flange 24 and the contact area on Metal Sheets for Body-manufacturing 4 surface 41, the installing hole place of automobile wiring harness sheath 1 is not easily torn.
The side 243 of flange 24 can cover or local complexity by the flaring 38 of fixed cover completely, and preferably, flange 24 has the cascaded surface 244 in vertical axial direction, and upper end is boss-shaped, and this boss-shaped structure coordinates with fixed cover.The side 243 of flange 24 is only partly covered, and ensures that with vehicle body contact site be flange 24, if the side 243 of flange 24 is completely encased, under the urgent state of assembling, the lower limb of whole fixed cover can contact Metal Sheets for Body-manufacturing 4, makes overall sealing property not good.The surface of fixed cover has antirust coat, and this antirust coat has antirust, etch-proof function, enhances the useful life of part.
Can there be multiple moulding the lower end stretching into portion 23, and preferably, the lower surface stretching into portion 23 has multiple blind hole 231, has good scalability, ensure that wire harness can more easily pass body.Number, the shape of blind hole 231 set according to need, and preferably, blind hole 231 is trapezoidal hole, and the center relatively stretching into portion 23 distributes axisymmetricly.
The body 22 of rubber sleeve 2 can be straight tube or other moulding, and the middle part of body 22 is wire harness through hole 21, and wire harness passes from wire harness through hole 21, and preferably, the body 22 of rubber sleeve 2 has helical structure or ripple struction 221, has good scalability.
With reference to shown in Fig. 6, Fig. 7, during installation wiring sheath 1, by the mode using bolt and nut to tighten, Metal Sheets for Body-manufacturing 4 epirelief is welded with two bolts 42, after a bolt 42 passes through the fixed cover circular hole 36 of fixed cover circular hole 36, the second fixed cover 3a of circular hole 245, first fixed cover 3 of rubber sleeve 2 successively, nut 5 is used to fix on the surface of the second fixed cover 3a; Another bolt 42 is successively through the fixed cover mounting hole 37 of fixed cover mounting hole 37, first fixed cover 3 of mounting hole 246, the second fixed cover 3a of rubber sleeve 2, when Metal Sheets for Body-manufacturing 4 and bolt 42 spacing have error, mounting hole can carry out certain adjustment, is adjusted to correct position and selects and lock into nut.Also can adopt the project-welding nut that to be welded on fixed cover surface, use bolt to fix, can select according to property easy to assembly.
Although the present invention is described in conjunction with above embodiment, but the present invention is not limited to above-described embodiment, and only by the restriction of claims, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.