CN216389765U - Electron pencil with fire prevention protective sheath - Google Patents

Abstract

The utility model discloses an electronic wire harness with a fireproof protection sleeve, which comprises a wire harness body, wherein a terminal is pressed at one end of the wire harness body, a heat-shrinkable tube and a PVC (polyvinyl chloride) sheath are arranged at the joint of the wire harness body and the terminal, the heat-shrinkable tube is fixed on the outer wall of the wire harness body through heat shrinkage, the PVC sheath is sleeved on the outer wall of the heat-shrinkable tube, a protection cover for protecting the terminal is arranged at one end of the wire harness body, the wire harness body comprises a metal core, the outer wall of the PVC tube is wrapped with a high-temperature tube, and the outer wall of the high-temperature tube is sleeved with a fireproof sleeve; according to the utility model, the fireproof sleeve is sleeved on the high-temperature pipe of the harness body to improve the fireproof performance of the harness, the protective cover is arranged to protect the terminal, the elastic buffer cushion is arranged on one side of the housing to enable the fireproof sleeve to be attached to the buffer cushion, the protective cover can protect different quantities of harnesses, and the housing can not be bounced off by the buffer cushion due to the self-locking mechanism.

Description

Electron pencil with fire prevention protective sheath

Technical Field

The utility model relates to the technical field of electronic wiring harness fire prevention, in particular to an electronic wiring harness with a fire-proof protective sleeve.

Background

The electron pencil is the wire with electronic control input and output, in order to be connected to different circuits usually for the convenience, the one end of electron pencil can be through the terminal crimping machine crimping different shapes the terminal in order to satisfy the connection demand of different circuits, the protective tube of the outer parcel of present electron pencil can select for use different materials according to operational environment, makes the pencil have high temperature resistant, performances such as fire prevention to enlarge the application field of electron pencil, the intensity of pencil increases simultaneously and makes the pencil can the live time longer.

However, the metal core part of the electronic wire harness is only provided with a plug-in component convenient for connecting components or a terminal with a PVC sheath, which generally has no fire resistance, but the terminal is an important part for realizing functional connection of the electronic wire harness, and the plug-in component is easy to enter dust and is difficult to clean after the electronic wire harness is bound into a bundle, or the terminal and air directly contact with an oxide layer to influence the conductivity, so that a fire protection sleeve for protecting the terminal for the electronic wire harness is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electronic wire harness with a fireproof protective sleeve, which is characterized in that a protective cover is arranged to protect a terminal, a fireproof sleeve is sleeved outside the electronic wire harness to protect a wire part of the wire harness, a self-locking mechanism is arranged to facilitate the use of a protective device, a silicone rubber pad is cemented in the protective cover to enable the interior of the protective cover to have the fireproof and flame-retardant effects, and a buffer pad is arranged to enable the protective cover to protect different quantities of electronic wire harnesses.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an electron pencil with fire prevention protective sheath, includes the pencil body, the one end crimping of pencil body has the terminal, pencil body and terminal junction are provided with pyrocondensation pipe and PVC sheath, the pyrocondensation pipe is fixed on the outer wall of pencil body through the pyrocondensation, the PVC sheath cup joints at pyrocondensation pipe outer wall, the one end of pencil body is provided with the protection casing that is used for protecting the terminal.

Preferably, the wire harness body comprises a metal core, the outer wall of the metal core is wrapped by a PVC pipe, the outer wall of the PVC pipe is wrapped by a high-temperature pipe, and the outer wall of the high-temperature pipe is sleeved with a fireproof sleeve.

Preferably, the heat shrinkable tube is wrapped on the outer wall of the high-temperature tube, one end of the heat shrinkable tube exceeds the terminal connection position by 5-10 mm, the other end of the heat shrinkable tube is wrapped at the bottom of the terminal, and one end of the fireproof sleeve is sleeved on the outer side of the heat shrinkable tube.

Preferably, the protection casing includes housing and lower housing, it all is the rectangle setting to go up housing and lower housing, it cup joints with the outer wall of lower housing to go up the housing, the both sides of lower housing are provided with from locking mechanism, the arc wall has all been seted up with one side of lower housing to go up the housing.

Preferably, a buffer pad is cemented on the surface of the arc-shaped groove, a sealing ring is cemented on the edge of the upper surface of the lower housing, a placing table is arranged in the lower housing, a placing groove is formed by one side of the placing table and the inner wall of the lower housing, and a silicone rubber pad is cemented on the inner wall of the lower housing.

Preferably, the number of the self-locking mechanisms is four, each self-locking mechanism comprises a bottom plate, two ends of two sides of the lower housing are provided with a notch, and the four bottom plates are fixed in the notches through screws.

Preferably, one side of bottom plate is fixed with the spring, one side of spring is fixed with the lug, the lug activity is pegged graft in the notch, the logical groove that supplies the lug card to go up to block is all seted up to the both sides of housing.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the fireproof sleeve is sleeved outside the high-temperature pipe of the electronic wire harness, so that the wire part of the wire harness can be protected against fire, the fireproof protection can be performed on the terminal part by arranging the protective cover internally glued with the fireproof rubber pad, the arc-shaped groove and the buffer pad are arranged between the upper and lower housings, so that when the housings are placed with different numbers of wire harnesses, the buffer pad of the housing can be tightly attached to the fireproof sleeve on the outer wall of the wire harness, the sealing property of the protective cover is improved, the contact surface between the internal terminal and the external is reduced, the dustproof and waterproof effects are achieved to a certain extent, after the wire harness is placed in the lower housing by arranging the self-locking mechanisms on the two sides of the housing, the wire harness can be protected by being sleeved on the upper housing, and the operation is convenient.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is a schematic view of the external structure of the electronic wiring harness of the present invention;

FIG. 3 is a schematic view of the internal structure of the electronic wiring harness of the present invention;

FIG. 4 is a schematic view of the construction of the shield of the present invention;

fig. 5 is a schematic structural view of the self-locking mechanism of the present invention.

In the figure: 1. a wire harness body; 2. a PVC sheath; 3. a terminal; 4. a protective cover; 5. a lower housing shell; 6. an upper housing; 7. a self-locking mechanism; 8. a seal ring; 101. a fire sleeve; 102. a high temperature tube; 103. a metal core; 104. PVC pipes; 105. heat shrink tubing; 501. an arc-shaped slot; 502. a placing table; 503. a silicone rubber pad; 601. a through groove; 602. a cushion pad; 701. a base plate; 702. a spring; 703. and (4) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an electronic wire harness with a fireproof protective sleeve comprises a wire harness body 1, wherein a terminal 3 is pressed at one end of the wire harness body 1, a heat-shrinkable tube 105 and a PVC (polyvinyl chloride) sheath 2 are arranged at the joint of the wire harness body 1 and the terminal 3, the heat-shrinkable tube 105 is fixed on the outer wall of the wire harness body 1 through heat shrinkage, the PVC sheath 2 is sleeved on the outer wall of the heat-shrinkable tube 105, and a protective cover 4 used for protecting the terminal 3 is arranged at one end of the wire harness body 1;

the wiring harness body 1 comprises a metal core 103, the outer wall of the metal core 103 is wrapped with a PVC pipe 104, the outer wall of the PVC pipe 104 is wrapped with a high-temperature pipe 102, the outer wall of the high-temperature pipe 102 is sleeved with a fireproof sleeve 101, the PVC pipe 104 is a common sleeve of an electronic wiring harness, the high-temperature pipe 102 is a glass fiber braided pipe, and the fireproof sleeve 101 is made of glass fiber coated with silicon resin;

the heat-shrinkable tube 105 is wrapped on the outer wall of the high-temperature tube 102, one end of the heat-shrinkable tube 105 exceeds the joint of the terminal 3 by 5-10 mm, the other end of the heat-shrinkable tube 105 is wrapped at the bottom of the terminal 3, one end of the fireproof sleeve 101 is sleeved on the outer side of the heat-shrinkable tube 105, and the heat-shrinkable tube 105 is wrapped at the position where the terminal 3 is in compression joint with the metal core 103, so that the joint can be protected, and the metal core 103 is prevented from being in direct contact with the outside to cause the bifurcation of the metal core 103, and a circuit is prevented from being short-circuited;

the protective cover 4 comprises an upper cover shell 6 and a lower cover shell 5, the upper cover shell 6 and the lower cover shell 5 are both arranged in a rectangular shape, the upper cover shell 6 is sleeved with the outer wall of the lower cover shell 5, self-locking mechanisms 7 are arranged on two sides of the lower cover shell 5, arc-shaped grooves 501 are formed in one sides of the upper cover shell 6 and one side of the lower cover shell 5, and the arc-shaped grooves 501 facilitate a plurality of electronic wire harnesses to be placed in the protective cover 4;

a buffer pad 602 is cemented on the surface of the arc-shaped groove 501, a sealing ring 8 is cemented on the edge of the upper surface of the lower housing 5, a placing table 502 is arranged in the lower housing 5, a placing groove is formed between one side of the placing table 502 and the inner wall of the lower housing 5, a silicone rubber pad 503 is cemented on the inner wall of the lower housing 5, the buffer pad 602 is made of silicone rubber, the fireproof sleeve 101 can be tightly attached to the buffer pad 602 by using the elasticity of rubber, the terminal 3 with a larger sheath can be placed in the placing groove, the buffer pad 602 of the upper housing 6 is wider than the buffer pad 602 of the lower housing 5, when the protective cover 4 is locked, the buffer pad 602 of the lower housing 5 can be fully contacted with the buffer pad 602 of the upper housing 6, the sealing performance of the device is improved, and the gap of the protective cover 4 can be sealed by arranging the sealing ring 8;

four self-locking mechanisms 7 are arranged, each self-locking mechanism 7 comprises a bottom plate 701, two ends of each of two sides of the lower housing 5 are respectively provided with a notch, the four bottom plates 701 are fixed in the notches through screws, and the upper housing 6 and the lower housing 5 cannot be bounced off by the cushion pads 602 through locking;

a spring 702 is fixed on one side of the bottom plate 701, a bump 703 is fixed on one side of the spring 702, the bump 703 is movably inserted into the groove, and through grooves 601 for the bump 703 to be inserted are formed in both sides of the upper cover shell 6;

during the use, put into lower housing 5 with the one end of pencil body 1 that has terminal 3 in, place the outer wall of fire prevention sleeve pipe 101 on blotter 602, terminal 3 is put into the standing groove, cup joint upper housing 6 with the outer wall of lower housing 5, when the lower surface of upper housing 6 contacted the upper surface of lug 703, spring 702 compresses, lug 703 is pressed to in the lower housing 5 simultaneously, when logical groove 601 arrived the position of lug 703, utilize the elasticity of spring 702 to pop out lug 703, the card is in logical groove 601, lock upper housing 6, blotter 602 presses fire prevention sleeve pipe 101 between lower housing 5 and upper housing 6 this moment, because the elasticity of blotter 602 can make blotter 602 and fire prevention sleeve pipe 101 laminate and play sealed effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an electron pencil with fire prevention protective sheath, includes pencil body (1), its characterized in that: the one end crimping of pencil body (1) has terminal (3), pencil body (1) and terminal (3) junction are provided with pyrocondensation pipe (105) and PVC sheath (2), pyrocondensation pipe (105) are fixed on the outer wall of pencil body (1) through the pyrocondensation, PVC sheath (2) cup joint at pyrocondensation pipe (105) outer wall, the one end of pencil body (1) is provided with protection casing (4) that are used for protecting terminal (3).

2. The electronic harness with the fireproof protective sheath of claim 1, wherein: the wire harness body (1) comprises a metal core (103), the outer wall of the metal core (103) is wrapped by a PVC pipe (104), the outer wall of the PVC pipe (104) is wrapped by a high-temperature pipe (102), and the outer wall of the high-temperature pipe (102) is sleeved with a fireproof sleeve (101).

3. The electronic harness with a fireproof protective sheath of claim 2, wherein: the heat-shrinkable tube (105) is wrapped on the outer wall of the high-temperature tube (102), one end of the heat-shrinkable tube (105) exceeds the joint of the terminal (3) by 5-10 mm, the other end of the heat-shrinkable tube (105) is wrapped at the bottom of the terminal (3), and one end of the fireproof sleeve (101) is sleeved on the outer side of the heat-shrinkable tube (105).

4. The electronic harness with the fireproof protective sheath of claim 3, wherein: the protective cover (4) comprises an upper cover shell (6) and a lower cover shell (5), the upper cover shell (6) and the lower cover shell (5) are arranged in a rectangular mode, the upper cover shell (6) is sleeved with the outer wall of the lower cover shell (5), the two sides of the lower cover shell (5) are provided with self-locking mechanisms (7), and an arc-shaped groove (501) is formed in one side of the upper cover shell (6) and one side of the lower cover shell (5).

5. The electronic harness with a fireproof protective sheath of claim 4, wherein: the sealing device is characterized in that a buffer pad (602) is glued on the surface of the arc-shaped groove (501), a sealing ring (8) is glued on the edge of the upper surface of the lower housing (5), a placing table (502) is arranged in the lower housing (5), a placing groove is formed by one side of the placing table (502) and the inner wall of the lower housing (5), and a silicone rubber pad (503) is glued on the inner wall of the lower housing (5).

6. The electronic harness with a fireproof protective sheath of claim 4, wherein: the self-locking mechanism (7) is provided with four, the self-locking mechanism (7) comprises a bottom plate (701), two ends of two sides of the lower housing (5) are provided with a notch, and the bottom plate (701) is fixed in the notch through screws.

7. The electronic harness with a fire protective sheath of claim 6, wherein: one side of the bottom plate (701) is fixed with a spring (702), one side of the spring (702) is fixed with a lug (703), the lug (703) is movably inserted into the notch, and through grooves (601) for the lug (703) to be clamped in are formed in the two sides of the upper housing (6).

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