阅读说明：本技术 一种热缩分支指套及其制造方法 (Thermal shrinkage branch finger stall and manufacturing method thereof ) 是由 胡平 于 2021-01-25 设计创作，主要内容包括：本发明公开了一种热缩分支指套及其制造方法,所述热缩分支指套包括：热缩双壁管,所述热缩双壁管包括外层绝缘层和内层热熔胶层；至少一夹具,在使用时,所述夹具将热缩双壁管一端沿其径向方向夹紧,将热缩双壁管分为收缩主管和多个收缩指管；其中,收缩主管可套设在线束的干线上,用于收缩后包覆在线束的干线上；收缩指管可套设在线束的支线上,用于收缩后包覆在线束的支线上。本发明的热缩分支指套可在热缩双壁管生产制造出来后,切断为设定长度,再配置可用于将热缩双壁管沿其径向方向夹紧,将热缩双壁管分为收缩主管和多个收缩指管的夹具即制造而成,相对于现有的热缩分支指套采用注塑成型制造的方式,大大节约了生产成本并提高了生产效率。(The invention discloses a thermal shrinkage branch finger cot and a manufacturing method thereof, wherein the thermal shrinkage branch finger cot comprises: the thermal shrinkage double-wall pipe comprises an outer insulation layer and an inner hot melt adhesive layer; when the heat-shrinkable double-wall pipe is used, one end of the heat-shrinkable double-wall pipe is clamped along the radial direction of the heat-shrinkable double-wall pipe by the clamp, and the heat-shrinkable double-wall pipe is divided into a main shrinkable pipe and a plurality of shrink finger pipes; the main shrinkage pipe can be sleeved on a trunk line of the wire harness and is used for covering the trunk line of the wire harness after being shrunk; the shrinkage finger tube can be sleeved on a branch line of the wire harness and is used for being shrunk and then coated on the branch line of the wire harness. The heat-shrinkable branch finger sleeve can be cut into a set length after a heat-shrinkable double-wall pipe is produced, and then is provided with a clamp which can be used for clamping the heat-shrinkable double-wall pipe along the radial direction of the heat-shrinkable double-wall pipe, and dividing the heat-shrinkable double-wall pipe into a heat-shrinkable main pipe and a plurality of heat-shrinkable finger pipes.)

1. A heat-shrinkable branched finger cot, comprising: the thermal shrinkage double-wall pipe comprises an outer insulation layer and an inner hot melt adhesive layer;

at least one clamp;

when the heat-shrinkable double-wall pipe is used, the clamp clamps one end of the heat-shrinkable double-wall pipe along the radial direction of the heat-shrinkable double-wall pipe, and the heat-shrinkable double-wall pipe is divided into a main shrinkable pipe and a plurality of shrink finger pipes; the main shrinkage pipe can be sleeved on a trunk line of the wire harness and is used for covering the trunk line of the wire harness after being shrunk; the shrinkage finger tube can be sleeved on a branch line of the wire harness and is used for being shrunk and then coated on the branch line of the wire harness.

2. The heat-shrinkable branching finger sleeve of claim 1 wherein said clip is removably attached to said heat-shrinkable double-walled tube.

3. The heat-shrinkable branching finger sleeve as claimed in claim 1, wherein said heat-shrinkable double-walled tube has a peripheral wall provided with a groove for engaging with said holder.

4. The heat-shrinkable branching finger sleeve as claimed in claim 1, wherein said heat-shrinkable double-walled tube outer peripheral wall is provided with an indication of a position to which said holder is to be clamped.

5. The heat-shrinkable branching finger sleeve of claim 1 wherein said inner layer of hot melt adhesive has a thickness at said clamp-gripping location which is greater than the thickness at a location other than said clamp-gripping location.

6. The heat-shrinkable branching finger sleeve of claim 1 wherein said inner layer of hot melt adhesive has a thickness at said clamp-gripping location which is less than a thickness at a location other than said clamp-gripping location.

7. The heat-shrinkable branching finger cuff of claim 1, wherein said clip is an alligator clip.

8. The heat-shrinkable branching finger sleeve of claim 1, wherein said clip comprises a first clip plate, a second clip plate and a retainer between said first clip plate and said second clip plate, said retainer being located within the hollow cylinder of said heat-shrinkable double-walled tube when said first clip plate and said second clip plate clamp said heat-shrinkable double-walled tube in a radial direction thereof to prevent said clip from falling out.

9. The heat-shrinkable branching finger sleeve as claimed in claim 1, wherein the outer peripheral wall of said heat-shrinkable double-walled tube is provided with an anti-slip external thread.

10. The heat-shrinkable branching finger sleeve of claim 1 wherein the inner layer of hot melt adhesive of said heat-shrinkable double-walled tube is located between said clamp gripping location and said heat-shrinkable double-walled tube end.

11. A method for manufacturing a thermal-shrinkable branched finger sleeve is characterized by comprising the following steps:

a pipe extruding step: extruding a double-layer sleeve by adopting a double-layer co-extrusion extruder;

an irradiation step: irradiating the extruded double-layer sleeve;

an expansion step: expanding the irradiated double-layer sleeve;

cutting: cutting the expanded double-layer sleeve to a set length to obtain a heat-shrinkable double-wall pipe, wherein the heat-shrinkable double-wall pipe comprises an outer-layer insulating layer and an inner-layer hot melt adhesive layer;

a configuration step: and arranging a clamp which can be used for clamping the heat-shrinkable double-wall pipe along the radial direction of the heat-shrinkable double-wall pipe and dividing the heat-shrinkable double-wall pipe into a heat-shrinkable main pipe and a plurality of heat-shrinkable finger pipes to obtain the heat-shrinkable branch finger sleeve.

Technical Field

The invention relates to the technical field of cable accessories, in particular to a thermal shrinkage branch finger stall and a manufacturing method thereof.

Background

With the rapid development of the power industry and the communication industry, the application of electric wires, cables and optical cables is increasing, and along with the ground, the demand of cable accessories is gradually increasing. The thermal shrinkage branch fingerstall is used as a cable accessory and is sleeved at the branch of the core of the multi-core cable, so that the thermal shrinkage branch fingerstall can play a role in insulation, waterproof and dampproof sealing protection. However, in the prior art, the thermal shrinkage branch finger sleeve is manufactured by injection molding by using a stamping die in the manufacturing process, so that the production cost is high.

Disclosure of Invention

The invention mainly aims to provide a thermal shrinkage branch fingerstall and aims to reduce the production cost of the conventional thermal shrinkage branch fingerstall.

The invention also aims to provide a manufacturing method of the heat-shrinkable branched fingerstall.

In order to achieve the above object, the present invention provides a thermal shrinkage branch finger stall, comprising: the thermal shrinkage double-wall pipe comprises an outer insulation layer and an inner hot melt adhesive layer;

at least one clamp;

when the heat-shrinkable double-wall pipe is used, the clamp clamps one end of the heat-shrinkable double-wall pipe along the radial direction of the heat-shrinkable double-wall pipe, and the heat-shrinkable double-wall pipe is divided into a main shrinkable pipe and a plurality of shrink finger pipes; the main shrinkage pipe can be sleeved on a trunk line of the wire harness and is used for covering the trunk line of the wire harness after being shrunk; the shrinkage finger tube can be sleeved on a branch line of the wire harness and is used for being shrunk and then coated on the branch line of the wire harness.

In an embodiment of the present invention, the clamp is detachably connected to the heat-shrinkable double-walled tube.

In an embodiment of the present invention, the outer peripheral wall of the heat-shrinkable double-walled tube is provided with a groove engaged with the clamp.

In an embodiment of the present invention, the outer peripheral wall of the heat-shrinkable double-walled tube is provided with an identification part of the clamping position of the clamp.

In an embodiment of the invention, the thickness of the inner layer hot melt adhesive layer at the clamping position of the clamp is larger than that at the non-clamping position of the clamp.

In an embodiment of the invention, the thickness of the inner layer hot melt adhesive layer at the clamping position of the clamp is smaller than that at the non-clamping position of the clamp.

In one embodiment of the invention, the gripper is an alligator gripper.

In an embodiment of the present invention, the clamp includes a first clamping plate, a second clamping plate, and a fixing member located between the first clamping plate and the second clamping plate, wherein when the first clamping plate and the second clamping plate clamp the heat-shrinkable double-walled pipe in a radial direction thereof, the fixing member is located in a hollow cylinder of the heat-shrinkable double-walled pipe to prevent the clamp from falling off.

In an embodiment of the present invention, the outer peripheral wall of the heat-shrinkable double-walled tube is provided with an anti-slip external thread.

In one embodiment of the invention, the inner layer of the heat-shrinkable double-walled tube is located between the clamp clamping position and the end of the heat-shrinkable double-walled tube.

The invention also provides a manufacturing method of the thermal shrinkage branch finger cot, which is characterized by comprising the following steps of:

a pipe extruding step: extruding a double-layer sleeve by adopting a double-layer co-extrusion extruder;

an irradiation step: irradiating the extruded double-layer sleeve;

an expansion step: expanding the irradiated double-layer sleeve;

cutting: cutting the expanded double-layer sleeve to a set length to obtain a heat-shrinkable double-wall pipe, wherein the heat-shrinkable double-wall pipe comprises an outer-layer insulating layer and an inner-layer hot melt adhesive layer;

a configuration step: and arranging a clamp which can be used for clamping the heat-shrinkable double-wall pipe along the radial direction of the heat-shrinkable double-wall pipe and dividing the heat-shrinkable double-wall pipe into a heat-shrinkable main pipe and a plurality of heat-shrinkable finger pipes to obtain the heat-shrinkable branch finger sleeve.

The thermal shrinkage branch fingerstall in the technical scheme of the invention comprises a thermal shrinkage double-wall pipe, wherein the thermal shrinkage double-wall pipe comprises an outer insulating layer and an inner hot melt adhesive layer; when the heat-shrinkable double-wall pipe is used, one end of the heat-shrinkable double-wall pipe is clamped by the clamp along the radial direction of the heat-shrinkable double-wall pipe, and the heat-shrinkable double-wall pipe is divided into a shrinkable main pipe and a plurality of shrinkable finger pipes; the main shrinkage pipe can be sleeved on a trunk line of the wire harness and is used for covering the trunk line of the wire harness after being shrunk; the shrinkage finger tube can be sleeved on a branch line of the wire harness and is used for being shrunk and then coated on the branch line of the wire harness. The branch dactylotheca of pyrocondensation can be after pyrocondensation double-walled pipe is produced and is come out, cuts off for setting for length, and the reconfiguration can be used for with pyrocondensation double-walled pipe presss from both sides tightly along its radial direction, will the pyrocondensation double-walled pipe divide into the anchor clamps of shrink person in charge and a plurality of shrink dactylotheca and can make and form, adopts the mode of injection moulding manufacturing for current branch dactylotheca of pyrocondensation, has practiced thrift manufacturing cost greatly and has improved production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of a two-core heat-shrinkable finger sleeve according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a three-core heat-shrinkable finger sleeve according to an embodiment of the present invention.

The reference numbers illustrate: 1-heat-shrinkable double-wall pipe, 11-outer-layer insulating layer, 12-inner-layer hot-melt adhesive layer, 13-shrinkable main pipe, 14-shrinkable finger pipe and 2-clamp.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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 and 2, the invention provides a thermal shrinkage branch finger stall, which comprises a thermal shrinkage double-wall pipe 1, wherein the thermal shrinkage double-wall pipe 1 comprises an outer insulating layer 11 and an inner hot melt adhesive layer 12; and at least one clamp 2, when in use, the clamp 2 clamps one end of the heat-shrinkable double-wall pipe 1 along the radial direction thereof, and divides the heat-shrinkable double-wall pipe 1 into a main shrinkable pipe 13 and a plurality of shrinkable finger pipes 14;

the main shrinkage pipe 13 can be sleeved on a trunk line of the wire harness and is used for covering the trunk line of the wire harness after being shrunk; the shrink vials 14 may be sleeved on the branch wires of the wire harness for being shrunk and then coated on the branch wires of the wire harness.

The branch dactylotheca of pyrocondensation can with the production line of pyrocondensation double-walled pipe sharing, after the production of pyrocondensation double-walled pipe was made out, cut off for setting for length, the reconfiguration can be used for pressing from both sides the pyrocondensation double-walled pipe tightly along its radial direction, divide into the anchor clamps of the shrink person in charge and a plurality of shrink dactylotheca with the pyrocondensation double-walled pipe and can make and form, adopt the mode of injection moulding manufacturing for current branch dactylotheca of pyrocondensation, practiced thrift.

In the present embodiment, the clamp 2 is detachably connected to the heat-shrinkable double-walled pipe 1. The thermal shrinkage double-wall pipe 1 and the clamp 2 can be placed in a separated disassembly state at normal temperature, when the thermal shrinkage double-wall pipe 1 is heated, the clamp 2 is used for clamping the thermal shrinkage double-wall pipe 1 along the radial direction of the thermal shrinkage double-wall pipe, the inner layer hot melt adhesive layer 12 is in a melting state after being heated, hot melt adhesives at the sealing position clamped by the clamp 2 can be mutually fused and bonded together after being cooled, so that the thermal shrinkage double-wall pipe 1 is divided into a shrinkage main pipe 13 and a plurality of shrinkage finger pipes 14, the shrinkage main pipe 13 can be sleeved on a trunk line of a wire harness and is used for wrapping the trunk line of the wire harness after being shrunk; the shrink vials 14 may be sleeved on the branch wires of the wire harness for being shrunk and then coated on the branch wires of the wire harness. Thereby playing insulating, dampproofing and waterproofing sealed protection effect in multicore cable sinle silk branch department. In addition, because the clamp 2 is detachably connected with the heat-shrinkable double-wall pipe 1, as shown in fig. 1, if the heat-shrinkable double-wall pipe is a two-core heat-shrinkable finger sleeve, one clamp 2 can be configured for a plurality of heat-shrinkable double-wall pipes 1; as shown in fig. 2, in the case of a three-core heat-shrinkable finger sleeve, two clamps 2 may be disposed on a plurality of heat-shrinkable double-walled pipes 1; the four-core heat-shrinkable finger sleeve, the five-core heat-shrinkable finger sleeve and the like are analogized in sequence, and are not repeated, so that the production cost is further saved.

Optionally, in some embodiments of the present invention, the clamp 2 is fixedly connected to the heat-shrinkable double-walled pipe 1, so as to prevent the construction progress from being affected due to the absence of the clamp 2 during the construction process.

In this embodiment, the gripper 2 is an alligator gripper. Regarding the kind of the clamp 2, there is no limitation, and it is only necessary that the clamp 2 has a certain width to clamp the heat-shrinkable double-walled pipe 1, and those skilled in the art can select any other clamp 2 satisfying the requirements as required. In some embodiments of the present invention, if the clamp 2 is fixedly connected to the heat-shrinkable double-walled tube 1, it is preferable that the clamp 2 includes a first clamping plate, a second clamping plate, and a fixing member located between the first clamping plate and the second clamping plate, and the fixing member is located in the hollow cylinder of the heat-shrinkable double-walled tube 1 when the first clamping plate and the second clamping plate clamp the heat-shrinkable double-walled tube 1 in the radial direction thereof, so as to prevent the clamp 2 from falling off.

In the present embodiment, the outer insulating layer 11 of the heat-shrinkable double-walled tube 1 is a crosslinked polyolefin heat-shrinkable layer.

The periphery wall of the thermal shrinkage double-wall pipe 1 is provided with a groove which is engaged with the clamp 2 in a matching way, the groove can prompt the clamping position of the clamp 2 on the thermal shrinkage double-wall pipe 1, and on the one hand, the clamp 2 can be fixed when the clamp 2 clamps the thermal shrinkage double-wall pipe 1 so as to avoid the displacement of the clamp 2.

Optionally, in some embodiments of the invention, the heat-shrinkable double-walled pipe 1 is provided with an indication of the gripping position of the gripper 2 to provide an indication of the gripping position of the gripper 2 on the heat-shrinkable double-walled pipe 1.

In this embodiment, inlayer hot melt adhesive layer 12 is greater than the thickness of non-anchor clamps 2 clamping position at the thickness of 2 clamping position of anchor clamps, thereby can be so that when heating pyrocondensation double-walled pipe 1, the hot melt adhesive of 2 clamping position departments of being anchor clamps can fuse each other better, bond together after the cooling, can be with the tight more firm of pyrocondensation double-walled pipe 1 along its radial direction clamp, so as to avoid the fracture to make each shrink finger pipe 14 link up, thereby cause the pencil branch line short circuit, bring the potential safety hazard.

Optionally, in some embodiments of the present invention, the thickness of the inner layer hot melt adhesive layer 12 at the clamping position of the clamp 2 is smaller than that at the non-clamping position of the clamp 2, and after the clamp 2 clamps the heat-shrinkable double-walled tube 1, the thickness of the inner layer hot melt adhesive layer 12 at the clamping position of the clamp 2 is smaller than that at the non-clamping position of the clamp 2. Thereby achieving fixation of the clamp 2 so as not to displace the clamp 2.

In this embodiment, the internal diameter of shrink person in charge 13 is greater than or equal to the diameter of pencil trunk, the internal diameter of shrink vial 14 is greater than or equal to the diameter of pencil branch line, make pyrocondensation branch dactylotheca can overlap smoothly to many core cable sinle silk branch department, heat the back to pyrocondensation double-walled pipe 1 through oven or hot air gun, inlayer hot melt adhesive layer 12 fusion bonds on the pencil, outer insulating layer 11 contracts, seal fixedly with pencil trunk and pencil branch line after the cooling, the insulation has been realized, dampproofing and waterproofing seals the protection purpose.

Optionally, in some embodiments of the invention, the inner layer of hot melt glue 12 of the heat-shrinkable double-walled tube 1 is located at the clamping position of the clamp 2 with the end of the heat-shrinkable double-walled tube 1. Namely, the thermal shrinkage double-wall pipe 1 is only provided with the inner layer hot melt adhesive layer 12 at the clamping position of the clamp 2 and the end part of the thermal shrinkage double-wall pipe 1, thereby further reducing the production cost.

In this embodiment, 1 periphery wall of pyrocondensation double-walled pipe is equipped with anti-skidding external screw thread, is making things convenient for constructor gripping operation at the in-process of this pyrocondensation branch dactylotheca cover in cable sinle silk branch department, prevents the landing.

The invention further provides a manufacturing method of the thermal shrinkage branch finger cot, which comprises the following steps:

a pipe extruding step: extruding a double-layer sleeve by adopting a double-layer co-extrusion extruder;

an irradiation step: irradiating the extruded double-layer sleeve;

an expansion step: expanding the irradiated double-layer sleeve;

cutting: cutting the expanded double-layer casing pipe into a set length to obtain a heat-shrinkable double-wall pipe 1, wherein the heat-shrinkable double-wall pipe 1 comprises an outer-layer insulating layer 11 and an inner-layer hot melt adhesive layer 12;

a configuration step: and (3) arranging a clamp 2 which can be used for clamping the heat-shrinkable double-wall pipe 1 along the radial direction of the heat-shrinkable double-wall pipe 1 and dividing the heat-shrinkable double-wall pipe 1 into a shrinkable main pipe 13 and a plurality of shrinkable finger pipes 14 to obtain the heat-shrinkable branch finger sleeve.

According to the embodiment, the manufacturing method of the thermal shrinkage branch finger sleeve can cut the thermal shrinkage double-wall pipe into the set length after the thermal shrinkage double-wall pipe is manufactured, the thermal shrinkage double-wall pipe can be clamped along the radial direction of the thermal shrinkage double-wall pipe, and the thermal shrinkage double-wall pipe can be manufactured by the clamp which is divided into the thermal shrinkage main pipe and the plurality of thermal shrinkage finger pipes.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.