CN113451958A - Shrinkage type waterproof device - Google Patents

Abstract

The embodiment of the invention relates to a cold-contraction waterproof device, which comprises a pipe fitting, a fastener and a support piece, wherein the fastener is arranged on the pipe fitting; the pipe fitting is of a hollow structure and comprises a pipe body, a connecting pipe and a pipe joint which are sequentially connected; the tube body is a cold-shrink tube, and can be retracted and tightly pressed and attached to the cable after the support piece is detached; the connecting pipe is a special-shaped hollow pipe, one end of the connecting pipe is connected with the pipe body, and the other end of the connecting pipe is connected with the pipe joint; the clamping piece is arranged in the pipe joint, the pipe joint is provided with a pipe joint body, and a sealing structure capable of sealing a connection port of equipment is arranged at the first end of the pipe joint body; the buckle piece is a pressing buckle piece and can be detachably connected with a connecting port of equipment; the support member may detachably support the pipe body. The waterproof device has good sealing effect and can be repeatedly used.

Description

Shrinkage type waterproof device

Technical Field

The invention relates to a waterproof device, in particular to a cold-shrinkage waterproof device.

Background

Waterproof devices are parts widely used in various fields, for example, for sleeving and sealing various joints, and have protection functions of water resistance, moisture resistance, dust resistance, damage resistance and the like.

For example, in the technical fields such as communication, electric power, rail transit, meteorology, intelligent household appliances and the like, various cables are indispensable transmission media widely used for transmitting electric power, signals and the like, when various cables are used, various cable connectors are inevitably needed to be used for connecting the cables and equipment, the sealing protection of the various cable connectors is particularly important, and the sealing effect directly influences the safety and stability of electric power and signal transmission. In the prior art, for the sealing protection of various cable connectors, waterproof adhesive tapes, cold shrink tubes, heat shrinkable sleeves, waterproof rubber sleeves and the like are mainly used.

The waterproof adhesive tape is formed by extruding and compounding rubber, plastic or fabric and an adhesive, and is wound at the joint of the tail end of the treated power cable or communication cable and the cable connector according to the characteristics of the waterproof adhesive tape when in use. The waterproof adhesive tape is inconvenient to install, high in requirement on operation space, poor in sealing effect, not suitable for small soft cables and outdoor environment operation, is disposable sealing protection for the cable connector, and cannot be reused after being detached.

The cold-shrink tube is made up by using elastomer material and making it undergo the processes of injection vulcanization moulding in factory, diameter-expanding to form cold-shrink sheath and lining with spiral supporting material. When the cold-shrink tube is used, the cold-shrink tube is sleeved at the joint of the tail end of the processed power cable or communication cable and the cable connector, the internal support is drawn out, and the cold-shrink tube is tightly pressed and attached to the tail end of the cable and the cable connector, so that the cable connector is sealed. The cold shrink tube is used for sealing and protecting the cable connector at one time, the cold shrink tube can only be damaged firstly when the cable connector is disassembled, the cable connector is not convenient to disassemble and assemble, troubles are brought to equipment overhaul and maintenance, and the cold shrink tube can not be repeatedly used.

The heat shrinkable sleeve is made of special polyolefin material, and is produced by heating the heat shrinkable tube to a high elastic state, applying a load to expand the heat shrinkable tube, rapidly cooling the heat shrinkable tube under the condition of keeping the expansion to fix the heat shrinkable tube in a glass state, and heating the heat shrinkable tube to change the heat shrinkable tube to the high elastic state so as to retract the heat shrinkable tube. When the heat-shrinkable tube is used, the heat-shrinkable tube is sleeved at the joint of the tail end of the processed power cable or communication cable and the cable connector, a fire source is applied to the sleeve for heating, and the heat-shrinkable tube is retracted, compressed and attached to the tail end of the cable and the cable connector, so that the cable connector is sealed. The heat-shrinkable sleeve is difficult to operate, needs a fire source for heating and has serious potential safety hazard.

Waterproof rubber sleeve can reuse, nevertheless can't form inseparable seal structure with the cable because of there being the cavity structure, and sealed effect is poor, often leads to waterproof inefficacy.

Along with the upgrading and upgrading of technologies in the fields of communication, electric power, rail transit, weather, intelligent household appliances and the like, the integration degree of equipment is continuously increased, the shape of the cable connector is more and more irregular, and particularly, the equipment not only requires a waterproof device to have a good sealing effect, but also requires the waterproof device not to interfere with the disassembly and assembly of the cable connector so as to facilitate the overhaul, maintenance and replacement of the equipment.

Disclosure of Invention

In order to solve at least one of the above technical problems, an embodiment of the present invention proposes a cold-shrink type waterproof device.

<1> a cold-shrink type waterproof device, comprising a pipe fitting, a fastener and a support member; the pipe fitting is of a hollow structure and comprises a pipe body, a connecting pipe and a pipe joint which are sequentially connected; the tube body is a cold-shrink tube, and can be retracted and tightly pressed and attached to the cable after the support piece is detached; the connecting pipe is a special-shaped hollow pipe, one end of the connecting pipe is connected with the pipe body, and the other end of the connecting pipe is connected with the pipe joint; the clamping piece is arranged in the pipe joint, the pipe joint is provided with a pipe joint body, and a sealing structure capable of sealing a connection port of equipment is arranged at the first end of the pipe joint body; the buckle piece is a pressing buckle piece and can be detachably connected with a connecting port of equipment; the support member may detachably support the pipe body.

<2> the cold-shrink type waterproof device as stated in <1>, the pipe body, the connection pipe and the pipe joint are of an integrally formed structure.

<3> the cold-shrink type waterproof device as stated in <1>, the connecting pipe with the pipe body is a cold-shrink material pipe, the connecting pipe can be supported detachably by the support member.

<4> the cold-shrink type waterproof device as stated in <1>, each of the parts of the connecting pipe has an inner diameter larger than that of the pipe body.

<5> the cold-shrink type waterproof device as stated in <1>, the pipe joint includes a pipe joint body, a seal ring provided on a first end outer surface of the pipe joint body, and a projection provided on an outer surface of the pipe joint body.

<6> the cold-shrink type waterproof device as stated in <5>, the pipe joint body, the seal ring and the projection are of an integrally formed structure.

<7> the cold-shrink waterproof device as stated in <5>, the seal ring extends toward the pipe body.

<8> the cold-shrink waterproof device as stated in <5>, at least a part of the protruding portion protrudes out of a tip end of the seal ring.

<9> the cold-shrink type waterproof device as stated in <5>, the height of the protruding portion is larger than the height of the seal ring.

<10> the cold-shrink type waterproof device as stated in <5>, the protruding portion is of a hollow structure, and the hollow portion of the protruding portion is communicated with the hollow inner cavity of the pipe joint body.

<11> the cold-shrink waterproof device as stated in <5>, the protruding portion being capable of abutting against an outer end portion of a connection port of the apparatus.

<12> the cold-shrink type waterproof device as stated in <5>, said tube member is a rubber tube.

<13> the cold-shrink type waterproof device as stated in <1>, the locking member is a hollow structure, and the shape of the locking member is adapted to the shape of the pipe joint.

<14> the cold-shrink type waterproof device as stated in <13>, the pipe joint is in a hollow square tubular structure, and the snap-in member is in a hollow square tubular structure.

<15> as in <1>, the buckle has an elastic clamping structure, and the elastic clamping structure can clamp the connection port of the connection device.

<16> the cold-shrink waterproof device as stated in <1>, wherein the clip is formed by enclosing a first wall, a second wall, a third wall and a fourth wall, wherein first ends of the four walls have an integral connection structure, the first wall and the third wall are disposed opposite to each other, the second wall and the fourth wall are disposed opposite to each other, the first wall and two adjacent walls are disposed apart from each other at portions other than the end portion of the first end, and the third wall and two adjacent walls are disposed apart from each other at portions other than the end portion of the first end; and the end parts of the second ends of the first wall and the third wall are respectively provided with a buckling structure protruding towards the outer side of the buckling piece.

<17> the cold-shrink type waterproof device as stated in <16>, the first wall protrudes from the adjacent two walls, and the third wall protrudes from the adjacent two walls.

<18> the cold-shrink type waterproof device as stated in <16>, the first wall and the adjacent two walls each have a gap therebetween, and the third wall and the adjacent two walls each have a gap therebetween.

<19> the cold-shrink waterproof device as stated in <16>, wherein the first wall is inclined to an outer side of the grommet, and the third wall is inclined to an outer side of the grommet.

<20> the cold-shrink type waterproof device as stated in <1> or <15> or <16>, on an outer surface of the grommet, a rib is provided along a circumferential direction of the grommet.

<21> the cold-shrink type waterproof device as stated in <20>, the pipe joint comprises a pipe joint body, a seal ring provided on an outer surface of a first end of the pipe joint body, and a protrusion provided on an outer surface of the pipe joint body, the protrusion is of a hollow structure, a hollow portion of the protrusion is communicated with a hollow inner cavity of the pipe joint body, and the rib is accommodated in the hollow portion of the protrusion.

<22> the cold-shrink type waterproof device as stated in <1>, the number of the tube bodies is one or more, the number of the connection tubes is one or more, and the number of the tube joints is one.

<23> the cold-shrink type waterproof device as stated in <22>, the number of the connection pipes is the same as the number of the pipe bodies, and each of the pipe bodies is connected to the pipe joint through one connection pipe, respectively.

<24> the cold-shrink type waterproof device as stated in <22>, the fastener is one.

The embodiment of the invention has the following beneficial effects: the embodiment of the invention provides a cold-contraction waterproof device which can be used for sealing and protecting various cable connectors, plays roles in preventing water, sealing and the like, is suitable for various cable connectors, has a good sealing effect, is convenient for equipment maintenance, maintenance and replacement, and can be repeatedly used.

Drawings

Fig. 1 is an exploded structural schematic diagram of a waterproof device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a pipe of a waterproof device according to an embodiment of the present invention.

Fig. 3 is a schematic sectional view of an assembly structure of a waterproof device according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a fastener of a waterproof device according to an embodiment of the present invention.

Fig. 5 is a side view of a fastener of a waterproof device according to an embodiment of the present invention.

Fig. 6 is a schematic view of an assembly structure of a waterproof device according to an embodiment of the present invention.

Fig. 7 is a side view of an assembly structure of a waterproof device according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a combined cold-shrinkable waterproof device according to an embodiment of the present invention.

Fig. 9 is a schematic view of an application example of the waterproof device according to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. Those skilled in the art will appreciate that the present invention is not limited to the drawings and the following examples.

Single cold-shrinkage type waterproof device

Referring to fig. 1 to 7, an embodiment of the present invention provides a cold-shrink type waterproof device, which can be used for waterproof sealing, for example, a waterproof sealing sleeve used as a cable connector in the fields of communications, power, rail traffic, weather, intelligent home appliances, and the like, and includes a pipe 10, a fastener 20, and a support 30; the pipe fitting 10 is a hollow structure and comprises a pipe body 11, a connecting pipe 12 and a pipe joint 13 which are sequentially connected, wherein the pipe body 11 can be tightly pressed and attached to a cable after a support member 30 is detached, so that the cable is sealed, and a cable connector is sealed, the connecting pipe 12 is connected with the pipe body 11 and the pipe joint 13, one end of the connecting pipe 12 is connected with the pipe body 11, the other end of the connecting pipe is connected with the pipe joint 13, the fastener 20 is arranged in the pipe joint 13 (as long as at least one part of the fastener is arranged in the pipe joint, namely, the fastener 20 is arranged in the pipe joint 13, such as shown in fig. 3), and the pipe joint 13 is used for sealing a connecting port O of equipment; the fastener 20 is used for clamping a connection port O of the connection device; the support 30 is used to detachably support the pipe 10, for example, the pipe body 11, or the pipe body 11 and the connection pipe 12.

Pipe fitting

The pipe fitting 10 comprises a pipe body 11, a connecting pipe 12 and a pipe joint 13 which are connected in sequence, preferably, the pipe body 11, the connecting pipe 12 and the pipe joint 13 are of an integrally formed structure.

< pipe body >

The tube body 11 is a cold shrink tube, and preferably, the tube body 11 is in a hollow round tube shape. The tube 11 is used to seal the cable to protect the cable connector (see fig. 9). The tube body 11 is supported by the supporting piece when not used, and when in use, after the supporting piece is detached, the tube body 11 can naturally retract and is tightly pressed and attached to the cable

Preferably, the inner diameter of the pipe body 11 ranges from 2.0 mm to 30mm, more preferably, the inner diameter of the pipe body 11 ranges from 2.0 mm to 15mm, and most preferably, the inner diameter of the pipe body 11 ranges from 3.0mm to 10mm, and for example, the inner diameter of the pipe body 11 can be implemented as 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, and the like.

Preferably, the thickness of the pipe body 11 is 0.5 to 5.0mm, more preferably, the thickness of the pipe body 11 is 1.0 to 4.0mm, most preferably, the thickness of the pipe body 11 is 1.5 to 3.5mm, and for example, the thickness of the pipe body 11 may be implemented as 2mm, 2.5mm, 3mm, and the like.

Preferably, the length of the pipe body 11 is 20-200 mm, more preferably, the length of the pipe body 11 is 30-100 mm, and most preferably, the length of the pipe body 11 is 30-80 mm; illustratively, the length of the tube 11 may be embodied as 40mm, 44mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, etc.

It should be noted that the inner diameter, thickness and length of the pipe body 11 are all measured values in a natural state when the pipe body 11 is not supported by the support member 30.

< connection pipe >

The connection tube 12 connects the tube body 11 and the tube connector 13, and the connection tube 12 is configured not to be pressed against the cable without being supported by the support member 30. Preferably, the connection tube 12 is a tube made of cold-shrink material. Can be integrally formed with the pipe body 11, and has elasticity and freedom of movement.

Preferably, the connecting tube 12 is a shaped hollow tube. In the present invention, the term "shaped hollow tube" means that the hollow tube has a side view of the outer surface which is neither a rectangular planar shape nor a square two-dimensional planar shape, but has any irregular two-dimensional or three-dimensional structure and/or shape other than the rectangular planar shape and the square two-dimensional planar shape.

The connecting tube 12 is, for example, a hollow cylinder, a hollow ellipsoid, a hollow cone, a hollow externally-protruding thread structure, and most preferably, the connecting tube 12 is a hollow cylinder, a hollow cone, or a hollow externally-protruding thread structure.

Preferably, the inner diameter of each portion of the connection pipe 12 is larger than the inner diameter of the pipe body 11 (which means the measurement result of the pipe body 11 and the connection pipe 12 in an unsupported natural state). When in use, after the supporting member 30 is removed, the connecting pipe 12 is elastically retracted, and because the connecting pipe 12 is set to not form a pressing fit with the cable when not supported by the supporting member, that is, no seal is formed between the connecting pipe 12 and the cable (as shown in fig. 9), the connecting pipe 12 can move along the cable, and when a force is applied to the connecting pipe 12 in the direction of the pipe body 11, the connecting pipe 12 can be shortened, so that an operation space for detaching the cable connector is provided, the cold shrinkable tube does not need to be damaged, and the technical problem that the cold shrinkable tube in the prior art can only be used once is solved.

Preferably, the length of the connecting pipe 12 is 10-100 mm, more preferably, the length of the connecting pipe 12 is 20-60 mm, and most preferably, the length of the connecting pipe 12 is 20-40 mm; illustratively, the length of the connecting tube 12 is 23mm, 26mm, 29mm, 32mm, 35mm, 38 mm. The length of the connecting pipe 12 is the vertical distance between the two end faces of the connecting pipe 12, as shown by d1 in fig. 3.

< pipe Joint >

Preferably, the pipe connector 13 is of a generally hollow square tubular configuration, for example, of generally square or rectangular cross-section.

The pipe joint 13 includes a pipe joint body, a seal ring 131 provided on an outer surface of a first end E1 (which is an end located further outward (i.e., right side in fig. 3) than a second end as shown in fig. 3, and the length thereof is not limited to the length shown in the drawing) of the pipe joint body, and a projection 132 provided on the outer surface of the pipe joint body. Preferably, the pipe joint body, the packing 131 and the protrusion 132 are integrally formed.

One or more sealing rings 131 protruding out of the outer surface of the pipe joint body are provided on the outer surface of the first end E1 of the pipe joint body in the circumferential direction of the pipe joint body. Preferably, the sealing ring 131 extends in the direction of the pipe body 11 (as shown in fig. 3). The packing 131 can perform a waterproof sealing function when the pipe joint 13 is connected to the connection port O of the equipment.

Preferably, the number of the sealing rings 131 is 1 to 10, more preferably 2 to 8, and most preferably 3 to 5.

Preferably, the height of each sealing ring 131 is 0.5-10 mm, more preferably, the height of each sealing ring 131 is 0.8-3.0 mm, and most preferably, the height of each sealing ring 131 is 1.0-2.5 mm. In the present invention, the height of the packing 131 is a vertical distance from the top end of the packing 131 to the outer surface of the pipe joint body.

Illustratively, the connection port O of the device is an open structure through which cable connectors/cables can enter the interior of the device, and the shape of the connection port O is adapted to the shape of the pipe joint 13, for example, a hollow square tubular structure. The first end E1 of the pipe joint 13 can be inserted into the connection port O, and the seal ring 131 on the first end E1 of the pipe joint 13 seals the connection port O, thereby preventing water from entering the inside of the apparatus through the connection port O.

A protrusion 132 protruding outward from the outer surface of the pipe joint body is further provided on the outer surface of the pipe joint body along the circumferential direction of the pipe joint body, at least a part of the protrusion 132 protrudes beyond the tip of the gasket 131 (as shown in fig. 3), for example, the height of the protrusion 132 is greater than the height of the gasket 131. In the present invention, the height of the protrusion 132 refers to a vertical distance from the top end of the protrusion 132 to the outer surface of the pipe joint body.

Preferably, the protrusion 132 is a hollow structure, and the hollow part of the protrusion 132 is communicated with the hollow cavity of the pipe joint body and is used for accommodating the rib 26 of the snap member 20 (see fig. 3, the structure of the snap member 20 will be described in detail below).

The protruding portion 132 can abut against the outer end portion of the connection port O of the device, and can play a role in limiting when the pipe joint 13 is inserted, so that the pipe joint 13 is prevented from being completely embedded into the connection port O, and can also form a seal with the outer end portion of the connection port O, thereby preventing water from entering the device.

Preferably, the height of the protrusion 132 is 1.0 to 15mm, more preferably, the height of the protrusion 132 is 1.0 to 5mm, most preferably, the height of the protrusion 132 is 1.5 to 3.5mm, and exemplarily, the height of the protrusion 132 is 2.8 mm.

Preferably, the outer surface of the second end E2 of the pipe joint body corresponding to the first wall and the third wall of the latch 20 is provided with a positioning portion 133 for positioning the pressing position of the first wall and the third wall of the latch 20 (the structure of the latch 20 will be described in detail later).

The positioning portions 133 may be, for example, rough surface portions, such as ridges or bumps arranged in a circular or square shape, or the positioning portions 133 may also be defined merely by indicia, such as a pattern provided in a certain shape. The positioning portion 133 is provided to help the operator to quickly recognize the pressing position of the grommet 20, thereby preventing the grommet 20 from being effectively pressed.

Preferably, the tube 10 is a rubber tube, for example, the tube 10 is made of silicon rubber, ethylene propylene diene monomer, nitrile rubber or polyurethane rubber.

Fastener

The latch 20 is connected to the pipe joint 13, and preferably, the latch 20 is disposed in the pipe joint 13 and connected to the pipe joint 13, for example, at least a part of an outer surface of the latch 20 is adhesively connected to an inner surface of the pipe joint 13 by a modified resin.

The fastener 20 is of a hollow structure, the shape of the fastener 20 is matched with that of the pipe joint 13, the fastener 20 is provided with an elastic clamping structure, and the elastic clamping structure can be clamped with a connection port O of a connection device.

In one embodiment, the latch 20 is a push-button latch, i.e., the latch structure of the latch 20 can be latched to the connection port O of the connection device by pressing a sidewall of the latch 20, and/or the latch 20 can be disengaged from the connection port O of the connection device by pressing a sidewall of the latch 20. Specifically, the push button fastener 20 has a substantially hollow square tubular structure, and is enclosed by a first wall 21, a second wall 22, a third wall 23, and a fourth wall 24, wherein first ends C1 of the four walls are integrally connected, the first wall 21 and the third wall 23 are disposed opposite to each other, and the second wall 22 and the fourth wall 24 are disposed opposite to each other. Illustratively, at least a portion of each of the first wall 21, the second wall 22, the third wall 23, and the fourth wall 24 of the grommet 20 is adhesively connected to the inner surface of the pipe joint 13 by a modified resin.

The first wall 21 is separated from the adjacent two walls (i.e., the second wall 22 and the fourth wall 24) except for the end of the first end C1 (i.e., they are structurally separate from each other and are not of unitary construction).

The third wall 23 is spaced apart from each of the adjacent walls (i.e., the second wall 22, the fourth wall 24) except for the end of the first end C1 (i.e., structurally spaced apart from each other, not unitary).

The length of the first wall 21 is greater than that of the two adjacent walls, and at the second end C2 of the locking element 20, the first wall 21 protrudes from the two adjacent walls in the height direction of the locking element 20.

The third wall 23 has a length greater than that of the two adjacent walls, and at the second end C2 of the locking member 20, the third wall 23 protrudes beyond the two adjacent walls in the height direction of the locking member 20.

The end portions of the second ends C2 of the first wall 21 and the third wall 23 are respectively provided with a buckle structure 25 protruding to the outside of the buckle 20, for example, the buckle structure 25 is in a long strip shape and is respectively arranged on the outer surfaces of the end portions of the second ends of the first wall 21 and the third wall 23, preferably, the end portions of the buckle structure are provided with an inclined surface to facilitate installation, and the buckle can be buckled by pushing the buckle to the connection port O without pressing the first wall 21 and the third wall 23. Preferably, the height of the snap structure 25 is 0.3-10 mm, more preferably 0.5-5 mm, and most preferably 1.0-3.0 mm, and exemplarily, the height of the snap structure 25 may be implemented as 1.3mm, 1.6mm, 1.9mm, 2.2mm, 2.5mm, and 2.8 mm. The height of the catch structure 25 refers to the vertical distance from the top end of the catch structure 25 to the outer surface of the catch 20.

Preferably, the first wall 21 has a gap between each of the two adjacent walls. Preferably, the width of the gap is 0.2-20 mm, more preferably, the width of the gap is 0.5-5 mm, most preferably, the width of the gap is 0.5-2 mm, and exemplarily, the width of the gap may be implemented as 0.5mm, 1mm, 1.5 mm.

Preferably, the third wall 23 has a gap between each of the adjacent walls. Preferably, the width of the gap is 0.2-20 mm, more preferably, the width of the gap is 0.5-5 mm, most preferably, the width of the gap is 0.5-2 mm, and exemplarily, the width of the gap may be implemented as 0.5mm, 1mm, 1.5 mm.

Thus, the first wall 21 and the third wall 23 constitute an elastic latching structure of the latch 20.

Preferably, the first wall 21 is inclined to the outside of the grommet 20, and the first wall 21 and the vertical plane S have an angle α (as shown in fig. 5), the angle α being 0 to 10 degrees, preferably 0 to 5 degrees, and more preferably 0 to 3 degrees. Similarly, the third wall 23 is inclined toward the outside of the fastener 20, and an angle β (as shown in fig. 5) exists between the third wall 23 and the vertical plane S, where the angle β is 0 to 10 degrees, preferably, the angle β is 0 to 5 degrees, and more preferably, the angle β is 0 to 3 degrees.

Preferably, the length L of the grommet 20 is 10 to 150mm, more preferably, the length L of the grommet 20 is 10 to 80mm, most preferably, the length L of the grommet 20 is 10 to 60mm, and for example, the length L of the grommet 20 may be implemented as 16mm, 23mm, 29mm, 35mm, 41mm, 47mm, 52mm, 57mm, and the like.

Preferably, the width W of the grommet 20 is 10 to 150mm, more preferably, the width W of the grommet 20 is 10 to 80mm, most preferably, the width of the grommet 20 is 10 to 60mm, and for example, the width W of the grommet 20 may be implemented as 16mm, 21mm, 26mm, 31mm, 36mm, 41mm, 46mm, 51mm, 56mm, and the like.

Preferably, the height H of the locking element 20 is 5 to 150mm, more preferably, the height H of the locking element 20 is 10 to 40mm, most preferably, the height H of the locking element 20 is 20 to 40mm, and for example, the height H of the locking element 20 may be implemented as 25mm, 30mm, or 35 mm.

Preferably, the thickness of the latch 20 is 0.5 to 10mm, more preferably, the thickness of the latch 20 is 0.5 to 5mm, most preferably, the thickness of the latch 20 is 1 to 3mm, and for example, the thickness of the latch 20 may be implemented as 1.4mm, 1.8mm, 2.2mm, or 2.6 mm.

Preferably, a rib 26 is disposed on the outer surface of the latch 20 along the circumference of the latch 20, and the rib 26 is received in the hollow portion of the protrusion 132. Since the material of the pipe joint 13 is an elastic material, the sealing function can be achieved, but the strength of the protrusion 132 is insufficient, so that the sealing function and the limiting function are both limited, and the rib 26 has high strength, so that the protrusion 132 can be pressed against the outer end of the connection port O, thereby assisting the protrusion 132 in achieving the sealing and limiting of the outer end of the connection port O of the device.

Preferably, the height of the rib 26 is 1.0 to 30mm, more preferably 1.0 to 10mm, and most preferably 1.0 to 5.0 mm; illustratively, the height of the rib 26 may be implemented as 1.2mm, 1.7mm, 2.2mm, 2.7mm, 3.2mm, 3.7mm, 4.2mm, 4.7 mm. The height of the rib 26 refers to the vertical distance from the top of the rib 26 to the outer surface of the clasp 20.

Preferably, the fastener 20 is made of polyetherimide, nylon, polyoxymethylene, polypropylene or polyphenylene sulfide.

It should be noted that the variety and form of the elastic clamping structure are various, and it is impossible to exhaust all possible structures, and the above clamping structure is only an example and is not a limitation to the present invention.

Support piece

The supporting member 30 detachably abuts against the inner surfaces of the tube body 11 and the connecting tube 12 of the pipe 10, for elastically expanding the tube body 11 and the connecting tube 12. In the present invention, the supporting member 30 may be any supporting member commonly used for a cold-shrink tube in the prior art.

Preferably, the inner diameter of the support member 30 is 10-150 mm, more preferably 10-50 mm, and most preferably 10-40 mm, and exemplarily, the inner diameter of the support member is 15mm, 20mm, 25mm, 30mm, and 35 mm.

Preferably, the support member 30 is substantially in the form of a hollow cylinder.

Preferably, the supporting member 30 is made of polyethylene, polypropylene, polyethylene-modified material, or polypropylene-modified material.

The fastener 20 is disposed in the pipe joint 13 of the pipe 10, the fastener 20 is bonded and fixed to the inner surface of the pipe joint 13 by modified resin, and the rib 26 is received in the hollow portion of the protrusion 132. Therefore, the cold-shrinkage waterproof device can be applied to waterproof sealing of various cable connectors in the fields of communication, electric power, rail traffic, weather, intelligent household appliances and the like, and particularly can be applied to waterproof sealing of cable connectors of photoelectric signal transmission equipment such as communication 5G and rail traffic 5G.

Integrated cold-shrinkage type waterproof device

Referring to fig. 8, the pipe 10 of the cold-shrink waterproof device of the present invention may also be implemented as a united pipe 10, and in particular, the cold-shrink waterproof device of the embodiment of the present invention includes the united pipe 10, a fastener 20, and a plurality of supporters 30; the union pipe 10 comprises a plurality of (2 or more, for example, 3-10, 3-5) pipe bodies 11, a plurality of (2 or more, for example, 3-10, 3-5) connecting pipes 12 and a pipe joint 13 connected in sequence, each of the pipe bodies 11 can be pressed against the cable to seal the cable, so as to seal the cable connector, preferably, the number of the connecting pipes 12 is the same as that of the pipe bodies 11, the pipe bodies 11 correspond to the connecting pipes 12 one by one, each of the pipe bodies 11 is connected with the pipe joint 13 through one connecting pipe 12, one end of each of the connecting pipes 12 is connected with the pipe body 11, the other end is connected with the pipe joint 13, the snap-in member 20 is disposed in the pipe joint 13 (as long as at least a part of the snap-in member is disposed in the pipe joint 13, that is the term of the present invention, "the snap member 20 is disposed in the pipe joint 13"), preferably, the number of the fastening pieces 20 is one; the pipe joint 13 is used for sealing the connection port O of the apparatus; the fastener 20 is used for clamping a connection port O of the connection device; the support 30 is used to detachably support the pipe 10, for example, the pipe body 11, or the pipe body 11 and the connection pipe 12.

Next, a method of using the cold-shrink waterproof device of the embodiment of the present invention is described by way of example, and the cold-shrink waterproof device of the embodiment of the present invention is not limited to the following specific application examples.

Referring to fig. 9, taking a 5G communication device as an example, in general, such a device needs at least two connection cables (for simplicity, K denotes two cables in fig. 9), one is an optical fiber line for transmitting signals, and the other is a cable, and the two cables K need to enter the device through the connection port O of the device to be connected with the device M, so that the device M has a function of transmitting and receiving signals. Moreover, the optical fiber cable and the cable wire need to be connected with an interface T of the device M through a cable connector C, so that a water leakage risk exists at a connection port O of the device M, and the device M needs to be sealed to prevent water and dust. The cold-shrink waterproof device P of the embodiment of the invention takes the cold-shrink tube as a tube body and is connected with the fastener through the connecting tube. When the cable K is installed, firstly, the cable K with the connector C penetrates through the pipe fitting pre-expanded by the supporting piece, the pipe joint and the fastener, and the connector C protrudes out of the port of the fastener; secondly, inserting and connecting the connector C to an interface T of the equipment M; thirdly, the clamping and connecting piece is clamped and connected to a connecting port O of the equipment M, a sealing ring of the pipe joint seals the connecting port O, and the protruding part of the pipe joint is pressed against the outer end part of the connecting port O by setting the proper height of the clamping and connecting piece, so that the pipe joint and the connecting port O are sealed; and finally, the supporting piece is contracted, the supporting rope at the end part of the supporting piece is pulled, and the pipe body elastically retracts one by one to compress the cable, so that the pipe body is tightly pressed and sealed on the cable. From this, the shrinkage pipe compresses tightly the laminating to the cable and seals, and coupling sealing connection port O to form overall seal structure, can prevent that external water, dust from getting into equipment M. When the cold-shrink type waterproof device is disassembled, the first wall and the third wall of the buckling piece are pressed, the buckling at the top of the buckling piece is unlocked, the cold-shrink type waterproof device can be taken down from the connecting port O of the equipment M, the connecting pipe part does not press, fit and seal the cable or the cable connector C and can move, so that an operation space is provided for disassembling the cable connector C, after the cold-shrink type waterproof device is disassembled from the equipment M, the cable connector C can be disassembled by using the operation space without damaging the cold-shrink type waterproof device in the embodiment of the invention, and therefore, the cold-shrink type waterproof device in the embodiment of the invention can be repeatedly used, the disassembly and the assembly of the cable connector are facilitated, and the cost is saved.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A cold-contraction waterproof device is characterized by comprising a pipe fitting, a clamping piece and a supporting piece;

the pipe fitting is of a hollow structure and comprises a pipe body, a connecting pipe and a pipe joint which are sequentially connected;

the tube body is a cold-shrink tube, and can be retracted and tightly pressed and attached to the cable after the support piece is detached;

the connecting pipe is a special-shaped hollow pipe, one end of the connecting pipe is connected with the pipe body, and the other end of the connecting pipe is connected with the pipe joint;

the clamping piece is arranged in the pipe joint, the pipe joint is provided with a pipe joint body, and a sealing structure capable of sealing a connection port of equipment is arranged at the first end of the pipe joint body;

the buckle piece is a pressing buckle piece and can be detachably connected with a connecting port of equipment;

the support member may detachably support the pipe body.

2. The cold-shrink waterproof device according to claim 1, wherein the tube body, the connection tube and the tube joint are of an integrally molded structure; and/or the presence of a gas in the gas,

the connecting pipe and the pipe body are both cold-shrink material pipes, and the connecting pipe can be detachably supported by the supporting piece; and/or the presence of a gas in the gas,

the inner diameter of each part of the connecting pipe is larger than that of the pipe body; and/or the presence of a gas in the gas,

the buckle piece is provided with an elastic clamping structure, and the elastic clamping structure can be used for clamping a connecting port of the connecting equipment.

3. The cold-shrink waterproof device according to claim 1, wherein the pipe joint includes a pipe joint body, a seal ring provided on an outer surface of the first end of the pipe joint body, and a protrusion provided on an outer surface of the pipe joint body.

4. The cold-shrink waterproof device of claim 3, wherein the tube joint body, the seal ring and the protrusion are of an integrally molded structure;

preferably, the sealing ring extends towards the pipe body;

it is also preferred that at least a portion of the projection projects beyond the top end of the seal ring;

it is also preferred that the height of the projection is greater than the height of the sealing ring;

preferably, the protruding part is of a hollow structure, and the hollow part of the protruding part is communicated with the hollow inner cavity of the pipe joint body;

it is also preferred that the projection is capable of abutting an outer end of a connection port of the device;

also preferably, the tube is a rubber tube.

5. The cold-shrink waterproof device of claim 1, wherein the snap member is a hollow structure, and the shape of the snap member is adapted to the shape of the pipe joint;

preferably, the pipe joint is of a hollow square tubular structure, and the fastener is of a hollow square tubular structure.

6. The cold-shrink waterproof device according to claim 1, wherein the clip is enclosed by a first wall, a second wall, a third wall, and a fourth wall, first ends of the four walls being of an integral connection structure, the first wall being disposed opposite to the third wall, the second wall being disposed opposite to the fourth wall, the first wall being disposed apart from portions of the two adjacent walls other than the end portion of the first end, the third wall being disposed apart from portions of the two adjacent walls other than the end portion of the first end; the end parts of the second ends of the first wall and the third wall are respectively provided with a buckle structure protruding towards the outer side of the buckle piece;

preferably, the first wall protrudes from two adjacent walls, and the third wall protrudes from two adjacent walls;

it is also preferred that the first wall and two adjacent walls each have a gap therebetween, and the third wall and two adjacent walls each have a gap therebetween;

preferably, the first wall is inclined to an outer side of the locking member, and the third wall is inclined to the outer side of the locking member.

7. The cold-shrink waterproof device according to claim 1, 5 or 6, wherein a rib is provided along a circumferential direction of the clip on an outer surface of the clip;

preferably, the pipe joint comprises a pipe joint body, a sealing ring arranged on the outer surface of the first end of the pipe joint body and a protruding part arranged on the outer surface of the pipe joint body, the protruding part is of a hollow structure, the hollow part of the protruding part is communicated with the hollow inner cavity of the pipe joint body, and the convex rib is accommodated in the hollow part of the protruding part.

8. The cold-shrink waterproof device according to claim 1, wherein the tube body is one or more, the connection tube is one or more, and the tube joint is one.

9. The cold-shrink waterproof device according to claim 8, wherein the number of the connection pipes is the same as the number of the pipe bodies, and each of the pipe bodies is connected to the pipe joint via one connection pipe, respectively.

10. The cold-shrink waterproof device of claim 8, wherein said snap member is one.

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