CN212516654U - Waterproof accurate pencil - Google Patents

Abstract

The utility model provides a waterproof accurate pencil relates to the waterproof technical field of pencil, including two binding post of pencil that many electric wires are constituteed, every electric wire is including the electric wire inner core, and the electric wire inner core passes through insulating layer parcel, and the lateral wall of insulating layer is provided with the metal level, and the parcel has a plurality of water-swelling sealing rod, fire prevention mud layer, rubber sandwich on the lateral wall of metal level, and rubber sandwich's inside packing has anhydrous copper sulfate white powder, and rubber sandwich's outside parcel has the second water blocking layer. The utility model discloses in through the setting of the anhydrous copper sulfate white powder of rubber intermediate layer and inside packing, can destroy the automation to the protective layer in the rubber intermediate layer outside and detect, in case anhydrous copper sulfate white powder meets the water back and becomes blue, explains outer protective layer and destroys, whole utility model can detect and indicate whether the electric wire in the pencil guarantees that each electrical equipment normally even running, guarantees safe power consumption, and the practicality is high.

Description

Waterproof accurate pencil

Technical Field

The utility model relates to a waterproof technical field of pencil especially relates to a waterproof accurate pencil.

Background

A group of metal wires and cables are bound together in a wiring harness to carry signals and power supply connection between equipment. The wiring component is used for connecting various electrical equipment in an automobile circuit and comprises an insulating sheath, a wiring terminal, a lead, an insulating binding material and the like.

In indoor and outdoor pencil wiring operation, the hookup location between power cord and the equipment is only used ordinary joint simply to meet, be restricted by the space, the influence of environment and weather, especially in outdoor or humid environment, the hookup location of power cord seeps water and causes the short circuit phenomenon very easily to appear, lead to its can not normally circular telegram, the electronic equipment of access can burn out even, simultaneously, the electric wire in current pencil is mostly the inside electric wire of outer rubber layer parcel, waterproof nature itself is relatively poor, can not detect and indicate whether inside entering into the pencil to water simultaneously, be unfavorable for the power consumption safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof accurate pencil to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: a waterproof precise wire harness comprises two wiring terminals of the wire harness consisting of a plurality of wires, wherein the two wiring terminals are arranged at the left end and the right end of the wire harness, each wire comprises a wire inner core, the wire inner core comprises a conductive wire core and a glass fiber reinforced plastic fiber tube coated on the outer surface of the conductive wire core, the wire inner cores are provided with four groups, the four groups of wire inner cores are coated by an insulating layer, the outer side wall of the insulating layer is provided with a metal layer, the outer side wall of the metal layer is coated with a plurality of water-swelling water-stopping strips, the outer side of each water-swelling water-stopping strip is provided with a first water-blocking layer, the outer side of each first water-blocking layer is coated with a fireproof mud layer, the outer side wall of each fireproof mud layer is provided with a rubber interlayer, the inner part of each rubber interlayer is filled with anhydrous copper sulfate white, the outer surface of the fireproof layer is provided with a wear-resistant layer.

Preferably, the water-swelling water stop strips on the surface of the metal layer are distributed in an annular array along the axis direction of the metal layer, and the distance between two adjacent water-swelling water stop strips is smaller than the width of the water-swelling water stop strips.

Preferably, the wear-resistant layer is nitrile rubber prepared from butadiene and acrylonitrile by an emulsion polymerization method.

Preferably, the wear-resistant layer, the rubber interlayer, the second waterproof layer and the fireproof layer are all made of transparent materials.

Preferably, a waterproof rubber ring is installed at the joint of the wiring terminal and the electric wire.

Preferably, the wiring terminal comprises a slot and an insert row, a plurality of sealing rings are arranged on the side wall of the insert row, a plurality of sealing grooves are formed in the inner side wall of the slot, and the sealing grooves correspond to the sealing rings.

Preferably, the sealing ring is in interference fit with the sealing groove.

The utility model has the advantages that:

the utility model discloses in fix many electric wires through binding post, through the setting of flame retardant coating and fire prevention mud layer, have better fire behavior, can prevent flame to burn to the power cord inside when the conflagration breaks out, when the inside short circuit of power cord, flame can not outwards stretch, thereby burn out other equipment, the setting of metal level makes outside water-swelling sealing rod water-swelling after, do not have the influence to inside electric wire inner core, through rubber interlayer and the inside filled anhydrous copper sulfate white powder setting, can destroy the automatic detection of the protective layer outside the rubber interlayer, once anhydrous copper sulfate white powder turns blue after meeting water, explain that outer protective layer is destroyed, remind people to notice, through the setting of water-swelling sealing rod, can show the protective layer destruction of inlayer, once the electric wire takes place the inflation deformation, the protective layer that shows the outside of metal level all receives destruction, people alright with change the electric wire, whole utility model structure is simple, convenient operation can detect and indicate whether the electric wire in the wire harness, guarantees each electrical equipment normal even running, guarantees safe power consumption, and the practicality is high.

Drawings

Fig. 1 is a schematic perspective view of a waterproof precision wire harness of the present invention;

fig. 2 is a schematic view of the structure of the electric wire of the present invention;

fig. 3 is a schematic structural view of the connection terminal of the present invention;

FIG. 4 is an enlarged view of part A of FIG. 3 according to the present invention;

reference numerals: 1. an electric wire; 101. an inner core of the wire; 101a, a conductive wire core; 101b, a glass fiber reinforced plastic fiber pipe; 2. a wiring terminal; 201. a slot; 202. a power strip; 203. a seal ring; 204. a sealing groove; 3. an insulating layer; 4. a metal layer; 5. a water-swelling sealing strip when meeting water; 6. a first water resistant layer; 7. a fireproof mud layer; 8. a rubber interlayer; 9. a second water resistant layer; 10. a fire barrier layer; 11. and a wear-resistant layer.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-2, a waterproof precise wire harness comprises two wiring terminals 2 of the wire harness consisting of a plurality of wires 1, wherein the two wiring terminals 2 are arranged at the left end and the right end of the wire harness, each wire 1 comprises a wire inner core 101, the wire inner core 101 comprises a conductive wire core 101a and a glass fiber reinforced plastic fiber tube 101b coated on the outer surface of the conductive wire core 101a, the wire inner cores 101 are provided with four groups, the four groups of wire inner cores 101 are coated by an insulating layer 3, the outer side wall of the insulating layer 3 is provided with a metal layer 4, the outer side wall of the metal layer 4 is coated with a plurality of water-swelling water-stopping strips 5, the outer side of the water-swelling water-stopping strips 5 is provided with a first water-blocking layer 6, the outer side of the first water-blocking layer 6 is coated with a fireproof mud layer 7, the, the outer side of the rubber interlayer 8 is wrapped with a second waterproof layer 9, the outer side wall of the second waterproof layer 9 is wrapped with a fireproof layer 10, and the outer surface of the fireproof layer 10 is provided with a wear-resistant layer 11.

The working principle is as follows:

in the using process, the wiring terminals 2 at two ends of the waterproof precise wiring harness are connected between two electric appliances, the fireproof layer 10 is made of high-purity alkali-free glass fiber braided into a tube, organic silica gel is coated on the outer wall of the tube and is vulcanized, the tube can be used for a long time within the temperature range of-65 ℃ to 260 ℃ and keeps the soft and elastic performance of the tube, the wear-resistant layer 11 is nitrile rubber prepared from butadiene and acrylonitrile through emulsion polymerization, the wear resistance is high, the heat resistance is good, the waterproofness is good, the protective layer is cracked or damaged in the long-time use process of a plurality of electric wires 1, the integral waterproof effect is influenced, once the second water-resistant layer 9, the fireproof layer 10 and the wear-resistant layer 11 are damaged, the waterproof layer can be combined with anhydrous copper sulfate white powder filled in the rubber interlayer 8 as long as water permeates, and the anhydrous copper sulfate white powder is changed into blue, because wearing layer 11, rubber intermediate layer 8, second water-resistant layer 9 and flame retardant coating 10 are transparent material, so people can directly perceivedly see the inside color change of rubber intermediate layer 8, inform the user that four layers have suffered destruction outside.

When the fire clay layer 7 and first water blocking layer 6 also appear breaking and damaging, external water this moment will continue to leak to inside, finally reach water swelling sealing rod 5, after water swelling sealing rod 5 and water contact, the volume can slowly expand, go on for a long time, water swelling sealing rod 5's volume can increase 2-3 times of original volume, because there is the support of metal level 4 in water swelling sealing rod 5's the inboard, so water swelling sealing rod 5 can outwards expand, make each protective layer that is located the water swelling sealing rod 5 outside take place the inflation and warp, people can be directly perceived externally, show that the destruction that the protective layer in the electric wire 1 outside all suffered or the live time process has appeared breaking, need to change damaged electric wire 1, guarantee the normal use of electrical apparatus, safe power consumption.

Example 2

As shown in fig. 1-4, a waterproof precise wire harness comprises two wiring terminals 2 of the wire harness consisting of a plurality of wires 1, the two wiring terminals 2 are installed at the left end and the right end of the wire harness, each wire 1 comprises a wire inner core 101, the wire inner core 101 comprises a conductive wire core 101a and a glass fiber reinforced plastic fiber tube 101b coated on the outer surface of the conductive wire core 101a, the wire inner cores 101 are provided with four groups, the four groups of wire inner cores 101 are coated by an insulating layer 3, the outer side wall of the insulating layer 3 is provided with a metal layer 4, the outer side wall of the metal layer 4 is coated with a plurality of water-swelling water-stopping strips 5, the outer side of the water-swelling water-stopping strips 5 is provided with a first water-blocking layer 6, the outer side of the first water-blocking layer 6 is coated with a fireproof mud layer 7, the outer, the outer side of the rubber interlayer 8 is wrapped with a second waterproof layer 9, the outer side wall of the second waterproof layer 9 is wrapped with a fireproof layer 10, and the outer surface of the fireproof layer 10 is provided with a wear-resistant layer 11.

The terminal 2 includes a slot 201 and a socket 202, a plurality of sealing rings 203 are disposed on the sidewall of the socket 202, a plurality of sealing grooves 204 are disposed on the inner sidewall of the slot 201, and the sealing grooves 204 and the sealing rings 203 correspond to each other.

The working principle is as follows: in the installation process of the electric wire 1 of the whole waterproof precise wire harness, the two ends of the electric wire 1 are connected to the connecting ends of the power strip 202, the waterproof rubber ring is installed at the connecting position of the electric wire 1 and the power strip 202, the power strip 202 is installed in the slot 201, each sealing ring 203 corresponds to one sealing groove 204, and the sealing rings 203 and the sealing grooves 204 are in interference fit at the moment, so that multiple waterproof effects are achieved.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a waterproof accurate pencil, includes two binding post (2) of pencil that many electric wires (1) are constituteed, its characterized in that:

the two wiring terminals (2) are arranged at the left end and the right end of the wiring harness, each electric wire (1) comprises an electric wire inner core (101), the electric wire inner cores (101) comprise a conductive wire core (101a) and glass fiber reinforced plastic pipes (101b) coated on the outer surface of the conductive wire core (101a), the electric wire inner cores (101) are provided with four groups, the four groups of electric wire inner cores (101) are coated through an insulating layer (3), the outer side wall of the insulating layer (3) is provided with a metal layer (4), the outer side wall of the metal layer (4) is coated with a plurality of water-swelling water-stopping strips (5), the outer side of each water-swelling water-stopping strip (5) is provided with a first water-blocking layer (6), the outer side of the first water-blocking layer (6) is coated with a fireproof mud layer (7), the outer side wall of the fireproof mud layer (7) is provided with a rubber interlayer (, the outer side of the rubber interlayer (8) is wrapped with a second waterproof layer (9), the outer side wall of the second waterproof layer (9) is wrapped with a fireproof layer (10), and the outer surface of the fireproof layer (10) is provided with a wear-resistant layer (11).

2. The waterproof precision wire harness according to claim 1, characterized in that: the water-swelling water stop strips (5) on the surface of the metal layer (4) are distributed along the axis direction annular array of the metal layer (4), and the distance between two adjacent water-swelling water stop strips (5) is smaller than the width of the water-swelling water stop strips (5).

3. The waterproof precision wire harness according to claim 1, characterized in that: the wear-resistant layer (11) is nitrile rubber prepared from butadiene and acrylonitrile by an emulsion polymerization method.

4. The waterproof precision wire harness according to claim 1, characterized in that: the wear-resistant layer (11), the rubber interlayer (8), the second waterproof layer (9) and the fireproof layer (10) are all made of transparent materials.

5. The waterproof precision wire harness according to claim 1, characterized in that: and a waterproof rubber ring is arranged at the joint of the wiring terminal (2) and the electric wire (1).

6. The waterproof precision wire harness according to claim 1, characterized in that: binding post (2) are including slot (201) and row of inserting (202), be provided with a plurality of sealing washers (203) on the lateral wall of row of inserting (202), it has a plurality of seal grooves (204) to say this on the inside wall of slot (201), and seal groove (204) with sealing washer (203) correspond each other.

7. The waterproof precision wire harness according to claim 6, characterized in that: and the sealing ring (203) is in interference fit with the sealing groove (204).

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