CN213661188U

CN213661188U - High-magnification silicone rubber cold-shrinkage tube

Info

Publication number: CN213661188U
Application number: CN202022846924.7U
Authority: CN
Inventors: 杨杰
Original assignee: Suzhou Tongjin Polymer Materials Co ltd
Current assignee: Suzhou Tongjin Polymer Materials Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-07-09
Anticipated expiration: 2030-12-02

Abstract

The utility model discloses a high magnification silicon rubber cold shrink pipe, including cold shrink pipe main part and set up the plastics spiral strip in cold shrink pipe main part, the outside cover of cold shrink pipe main part is equipped with rubber fastening hoop, the both ends of rubber fastening hoop are fixedly connected with fixed block a, fixed block b respectively, the inside of fixed block b has seted up the spacing groove, the surface threaded connection Europe drive screw rod of fixed block a, the end of drive screw rod runs through fixed block a, and the end of drive screw rod extends to the inside of spacing groove, the end of drive screw rod is fixed with the spacing piece; through having installed rubber fastening hoop additional, rubber fastening hoop can tighten up the opening part of shrinkage pipe main part, has played sealed effect, avoids the both ends infiltration moisture or the air of shrinkage pipe main part to lead to the inside cable kneck of shrinkage pipe main part by oxidation corrosion, also can avoid appearing the cable interface inseparable, lead to the electric leakage, improved the security of shrinkage pipe main part.

Description

High-magnification silicone rubber cold-shrinkage tube

Technical Field

The utility model relates to a shrinkage pipe field especially relates to a high magnification silicon rubber shrinkage pipe.

Background

The cold shrink tube is generally a cold shrink type cable accessory, which is a part of various cable accessories formed by injecting and vulcanizing elastomer materials (commonly used silicone rubber and ethylene propylene rubber) in a factory, expanding and lining with a plastic spiral support. When the cable is installed on site, the pre-expansion pieces are sleeved at the tail end or joint of the treated cable, the plastic spiral strip (support) supported inside is drawn out, and the plastic spiral strip is pressed on the cable insulation to form the cable accessory.

However, the existing cold-shrink tube has insufficient sealing performance, air or moisture is easy to permeate into the interior of the cold-shrink tube, the joint of an internal cable is oxidized and even generates electric leakage, and the safety is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a high multiplying power silicon rubber cold shrink pipe has configured seal structure, can solve the leakproofness of current cold shrink pipe not enough, and inside infiltration air or moisture easily leads to the joint department of inside cable to be by the oxidation, produces the electric leakage even, the lower technical problem of security.

In order to solve the technical problem, the utility model provides a following technical scheme: a high-magnification silicone rubber cold-shrinkable tube comprises a cold-shrinkable tube main body and a plastic spiral strip arranged inside the cold-shrinkable tube main body, the outer side of the cold-shrinkable tube main body is sleeved with a rubber fastening hoop, two ends of the rubber fastening hoop are respectively and fixedly connected with a fixed block a and a fixed block b, a limit groove is arranged inside the fixed block b, the surface of the fixed block a is in threaded connection with an European driving screw rod, the tail end of the driving screw rod penetrates through the fixed block a, the tail end of the driving screw rod extends into the limiting groove, a limiting block is fixed at the tail end of the driving screw rod, the limiting block is matched with the limiting groove, the outer side of the driving screw is in threaded connection with a fastening piece, the bottom fixedly connected with of mounting plate is the gag lever post of symmetry, the spacing spout of symmetry is seted up on the surface of fixed block a, gag lever post and spacing spout phase-match.

As an optimal technical scheme of the utility model, cold shrink pipe main part comprises styrene-acrylic ester copolymer layer, polyvinylidene fluoride layer, PTFE anticorrosive coating, silicon rubber basic unit's top surface closely adheres to have PTFE anticorrosive coating, polyvinylidene fluoride layer, styrene-acrylic ester copolymer layer in proper order.

As an optimized technical scheme of the utility model, the anti-skidding line has been seted up to the end of plastics spiral strip, the anti-skidding line is S-shaped.

As an optimized technical scheme of the utility model, the surface of shrinkage pipe main part closely laminates insulation material layer.

As an optimized technical scheme of the utility model, the internal surface of shrinkage pipe main part is provided with the viscous material layer.

As an optimized technical scheme of the utility model, the free end surface of drive screw closely laminates and has soft pad.

As an optimized technical scheme of the utility model, drive screw is made by the ABS material, drive screw's inside cavity.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. through having installed rubber fastening hoop additional, rubber fastening hoop can tighten up the opening part of shrinkage pipe main part, has played sealed effect, avoids the both ends infiltration moisture or the air of shrinkage pipe main part to lead to the inside cable kneck of shrinkage pipe main part by oxidation corrosion, also can avoid appearing the cable interface inseparable, lead to the electric leakage, improved the security of shrinkage pipe main part.

2. Through designing new material composition, styrene-acrylate copolymer layer can play damp-proofing effect, avoids the inside infiltration moisture of shrinkage pipe main part, has improved the security of shrinkage pipe main part, and the polyvinylidene fluoride layer can avoid the shrinkage pipe main part to suffer strong ultraviolet ray and burn, has prolonged the life of shrinkage pipe main part, and PTFE anticorrosive coating can avoid the shrinkage pipe main part to suffer to corrode, has improved the security of shrinkage pipe main part.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

FIG. 3 is a schematic view of the material composition structure of the present invention;

fig. 4 is an enlarged schematic view of the structure at a in fig. 2 according to the present invention;

wherein: 1. a cold shrink tube body; 101. a styrene-acrylate copolymer layer; 102. a polyvinylidene fluoride layer; 103. a PTFE anticorrosive coating; 104. a silicone rubber base layer; 2. a plastic helical strip; 3. a rubber fastening hoop; 4. a limiting chute; 5. a drive screw; 6. a fastening tab; 7. a fixed block a; 8. a fixed block b; 9. a limiting block; 10. a limiting groove; 11. a limiting rod.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-4, a high-magnification silicone rubber cold-shrinkable tube comprises a cold-shrinkable tube body 1 and a plastic spiral strip 2 arranged inside the cold-shrinkable tube body 1, wherein a rubber fastening hoop 3 is sleeved outside the cold-shrinkable tube body 1, two ends of the rubber fastening hoop 3 are respectively and fixedly connected with a fixing block a7 and a fixing block b8, a limit groove 10 is arranged inside the fixing block b8, an European driving screw 5 is connected with the surface of the fixing block a7 in a threaded manner, the tail end of the driving screw 5 penetrates through the fixing block a7, the tail end of the driving screw 5 extends into the limiting groove 10, the tail end of the driving screw 5 is fixedly provided with a limiting block 9, the limiting block 9 is matched with the limiting groove 10, the outer side of the driving screw 5 is in threaded connection with a fastening piece 6, the bottom of the fastening piece 6 is fixedly connected with symmetrical limiting rods 11, the surface of the fixing block a7 is provided with symmetrical limiting sliding grooves 4, and the limiting rods 11 are matched with the limiting sliding grooves 4;

during the use, when cold-shrink tube main part 1 accomplished the installation, rotate drive screw 5, under the effect of screw thread, drive screw 5 drive mounting plate 6 removes along drive screw 5's surface movement, mounting plate 6 promotes fixed block a7 and removes, when fixed block a7 supports fixed block b8 surface, the fastening of rubber fastening hoop 3 is accomplished, this simple structure, rubber fastening hoop 3 can tighten up the opening part of cold-shrink tube main part 1, sealed effect has been played, avoid cold-shrink tube main part 1's both ends infiltration moisture or air, thereby lead to the inside cable kneck by the oxidation corrosion of cold-shrink tube main part 1, also can avoid appearing the cable interface inseparable, lead to the electric leakage, cold-shrink tube main part 1's security has been improved.

In another embodiment, the present embodiment discloses the material composition of the cold-shrink tube main body 1, as shown in fig. 3, the cold-shrink tube main body 1 is composed of a styrene-acrylate copolymer layer 101, a polyvinylidene fluoride layer 102, a PTFE anticorrosion coating layer 103, and a silicone rubber base layer 104, wherein the PTFE anticorrosion coating layer 103, the polyvinylidene fluoride layer 102, and the styrene-acrylate copolymer layer 101 are tightly adhered to the top surface of the silicone rubber base layer 104 in this order;

during the use, styrene-acrylate copolymer layer 101 can play damp-proofing effect, avoids the inside infiltration moisture of shrinkage pipe main part 1, has improved the security of shrinkage pipe main part 1, and polyvinylidene fluoride layer 102 can avoid shrinkage pipe main part 1 to suffer strong ultraviolet ray and burn, has prolonged the life of shrinkage pipe main part 1, and PTFE anticorrosive coating 103 can avoid shrinkage pipe main part 1 to suffer to corrode, has improved the security of shrinkage pipe main part 1.

In another embodiment, the embodiment discloses anti-slip threads formed at the tail end of the plastic spiral strip 2, as shown in fig. 4, the tail end of the plastic spiral strip 2 is provided with the anti-slip threads, and the anti-slip threads are S-shaped; when the plastic screw strip pulling device is used, the S-shaped anti-slip lines can increase the friction force on the surface of the plastic screw strip 2, and the plastic screw strip 2 is convenient to pull out.

In another embodiment, this embodiment discloses an insulation material layer disposed on the outer surface of the cold shrink tube main body 1, as shown in fig. 1, the outer surface of the cold shrink tube main body 1 is closely attached with the insulation material layer; when the cold-shrink tube is used, the heat-insulating material layer can play a role in heat insulation, and the cold-shrink tube main body 1 is prevented from being damaged due to severe temperature change when in use.

In another embodiment, the present embodiment discloses an adhesive material layer provided on the inner surface of the cold shrink tube main body 1, as shown in fig. 1, the inner surface of the cold shrink tube main body 1 is provided with an adhesive material layer; when the cold-shrink tube is used, the viscous material layer can enable the cold-shrink tube main body 1 to be connected with a cable more tightly, and the sealing performance of the cold-shrink tube main body 1 is improved.

In another embodiment, this embodiment discloses a soft pad disposed on the free end surface of the driving screw 5, as shown in fig. 4, the soft pad is closely attached to the free end surface of the driving screw 5; when the soft cushion is used, the soft cushion can play a role in buffering, and the hand feeling of the driving screw rod 5 is improved.

In another embodiment, the present embodiment discloses the constitution of the drive screw 5, as shown in fig. 4, the drive screw 5 is made of ABS material, the interior of the drive screw 5 is hollow; when the ABS material is used, the ABS material can play an insulating role, the weight of the driving screw rod 5 can be reduced due to the hollow interior of the driving screw rod 5, and the cost of the driving screw rod 5 is reduced.

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

1. The utility model provides a high magnification silicon rubber cold shrink pipe, includes cold shrink pipe main part (1) and sets up in inside plastics spiral strip (2) of cold shrink pipe main part (1), its characterized in that: the outer side of the cold-shrink tube main body (1) is sleeved with a rubber fastening hoop (3), two ends of the rubber fastening hoop (3) are fixedly connected with a fixed block a (7) and a fixed block b (8) respectively, a limiting groove (10) is formed in the fixed block b (8), the surface of the fixed block a (7) is in threaded connection with an European driving screw (5), the tail end of the driving screw (5) penetrates through the fixed block a (7), the tail end of the driving screw (5) extends into the limiting groove (10), a limiting block (9) is fixed at the tail end of the driving screw (5), the limiting block (9) is matched with the limiting groove (10), the outer side of the driving screw (5) is in threaded connection with a fastening piece (6), the bottom of the fastening piece (6) is fixedly connected with a symmetrical limiting rod (11), symmetrical limiting chutes (4) are formed in the surface of the fixed block a (7), the limiting rod (11) is matched with the limiting sliding groove (4).

2. The high-rate silicone rubber cold shrink tube of claim 1, wherein: the cold-shrink tube main body (1) is composed of a styrene-acrylate copolymer layer (101), a polyvinylidene fluoride layer (102), a PTFE (polytetrafluoroethylene) anticorrosive coating (103) and a silicon rubber base layer (104), wherein the PTFE anticorrosive coating (103), the polyvinylidene fluoride layer (102) and the styrene-acrylate copolymer layer (101) are sequentially and tightly bonded on the top surface of the silicon rubber base layer (104).

3. The high-rate silicone rubber cold shrink tube of claim 1, wherein: the tail end of the plastic spiral strip (2) is provided with anti-skid lines, and the anti-skid lines are S-shaped.

4. The high-rate silicone rubber cold shrink tube of claim 1, wherein: the outer surface of the cold-shrink tube main body (1) is tightly attached with a heat-insulating material layer.

5. The high-rate silicone rubber cold shrink tube of claim 1, wherein: the inner surface of the cold-shrink tube main body (1) is provided with an adhesive material layer.

6. The high-rate silicone rubber cold shrink tube of claim 1, wherein: and a soft pad is tightly attached to the surface of the free end of the driving screw rod (5).

7. The high-rate silicone rubber cold shrink tube of claim 1, wherein: the driving screw rod (5) is made of ABS materials, and the inside of the driving screw rod (5) is hollow.