CN212231020U

CN212231020U - Power cable protection pipe connecting device

Info

Publication number: CN212231020U
Application number: CN202020705469.6U
Authority: CN
Inventors: 赵成方
Original assignee: Zhejiang Bangde Pipe Industry Co ltd
Current assignee: Zhejiang Bangde Pipe Industry Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-25
Anticipated expiration: 2030-04-30

Abstract

The utility model relates to the technical field of cables, and discloses a power cable protection pipe connecting device, which comprises a connecting head, wherein the end of the connecting head is provided with an internal thread for being in threaded connection with a protection pipe; the bulge is integrally formed with the connector, the bulge is positioned on the outer side of the connector and at the end of the connector, and a first inclined surface is arranged on one side, away from the protective tube, of the bulge; the inner wall of the clamping band is provided with a second inclined plane which is abutted against the first inclined plane, and the clamping band is abutted against the outer side of the protection tube; and an adjusting structure for controlling the strap, when the adjusting structure is operated to drive the strap to contract inwards, a force in the diameter direction of the protection tube is applied to the protection tube and the connector, a first inclined surface on the strap applies a pressure to a second inclined surface on the protrusion, and the pressure borne on the second inclined surface is decomposed into a thrust force of the connector towards the direction of the protection tube, so that the purpose of preventing the connection between the protection tube and the connector from loosening is achieved.

Description

Power cable protection pipe connecting device

Technical Field

The utility model relates to the technical field of cables, especially, relate to a power cable protection pipe connecting device.

Background

Along with the demand to electric power and information transmission is bigger and bigger, the laying of the cable of transmission electric power and information is also more and more extensive, in order to protect the cable duct, current cable pencil overcoat has PVC winding pipe to come as the protection tube, when the protection tube splices, uses the mantle fiber machine to make the external screw thread with the end department of protection tube earlier, then has the end and the connector threaded connection of external screw thread with the protection tube, alright realize the concatenation between the segmentation protection tube.

However, the existing protection tube has the problem of easy looseness after being connected with the connector.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a power cable protection tube connecting device, which makes the connection between the protection tube and the connector more compact.

The utility model solves the technical problems by the following technical means, and provides a power cable protection pipe connecting device which comprises a connecting head, wherein the end head of the connecting head is provided with an internal thread for being in threaded connection with a protection pipe; the bulge is integrally formed with the connector, the bulge is positioned on the outer side of the connector and at the end of the connector, and a first inclined surface is arranged on one side, away from the protective tube, of the bulge; the inner wall of the clamping band is provided with a second inclined plane which is abutted against the first inclined plane, and the clamping band is abutted against the outer side of the protection tube; and an adjustment structure for controlling the fastening state of the band.

Furthermore, the rubber head is arranged on the surface of the strap, which is in contact with the protection pipe, and the rubber head is squeezed to apply an elastic force to the protection pipe, so that the clamping force of the strap on the protection pipe is enhanced through the rubber head.

Further, be equipped with the setting element on the connector, the hoop has spacing hole on, the setting element with spacing hole cooperation avoids the strap to rotate at will on the connector, avoids the strap to run the position at the in-process of locking.

Further, be equipped with the limiting plate on the connector, the limiting plate with the strap is contradicted, through the outside expanded degree of freedom of limiting plate restriction strap, acts together with the setting element, plays the effect that prevents the strap and drop from the connector at will.

Further, the hoop is provided with a chute, the adjusting structure comprises a screw rod meshed with the chute and a mounting seat positioned on the outer side of the screw rod, and the screw rod is meshed with the mounting seat. The screw rod rotates in the mounting base and is meshed with the inclined groove in the strap, and the strap is controlled to fasten the protection tube and the connector.

Furthermore, adjust the structure and still include the operation section, the operation section with screw rod fixed connection to be located the outside of mount pad can conveniently use the utensil to drive the screw rod through the operation section and rotate.

Further, adjust the structure and include first latch and second latch, first latch and second latch respectively in the both ends fixed connection of strap, first latch and the cooperation of second latch joint play the fastening of control strap to protection tube and connector through the degree of depth of adjusting first latch and second latch joint.

The beneficial effects of the utility model, through connector and protection tube threaded connection, then be equipped with the arch on the surface of connector, when the operation is adjusted the structure and is driven the strap and down tighten, except applying a protection tube diameter direction's power to protection tube and connector, a pressure is applyed in the face of the second inclined plane on the arch to first slope on the strap, and the pressure that bears on the second inclined plane decomposes into the connector and towards the thrust of protection tube direction, reaches and prevents that the protection tube from being connected not hard up purpose with the connector.

Drawings

Fig. 1 is a schematic structural view illustrating a connection between one end of a connector of a protection tube connecting device and a protection tube according to the present invention;

FIG. 2 is a schematic structural view of the joint between the connector and the protection tube according to the present invention;

FIG. 3 is a cross-sectional view of the junction of the strap and the protrusions of the present invention;

fig. 4 is a sectional view of the band of the present invention;

fig. 5 is a schematic structural diagram of an adjusting structure in embodiment 2 of the present invention;

FIG. 6 is an enlarged partial view of the first and second latch teeth of FIG. 5;

wherein: 100-connecting device, 10-connecting head, 11-internal thread, 20-protrusion, 21-first inclined surface, 22-first plane, 30-strap, 31-second inclined surface, 32-second plane, 33-rubber head, 34-limiting hole, 35-chute, 40-adjusting structure, 41-screw rod, 42-mounting seat, 43-operating section, 44-first latch, 45-second latch, 50-positioning piece and 60-limiting plate.

Detailed Description

The following description is given by way of specific embodiments, and those skilled in the art will appreciate the advantages and effects of the present invention from the disclosure provided in the present specification. It should be noted that the drawings provided in the following embodiments are only for illustrative purposes, and are only schematic drawings rather than actual drawings, which should not be construed as limiting the invention, and in order to better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "front", "back", etc. indicating the orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, therefore the terms describing the position relationship in the drawings are used only for exemplary illustration, and not for limiting the present invention, and those skilled in the art can understand the specific meaning according to the specific situation.

Example 1:

as shown in fig. 1 to 4, a power cable protection tube connection device 100 includes a connector 10 having a two-way structure, wherein internal threads 11 are formed at ends of two ends of the connector 10, two ends of the connector 10 are respectively in internal thread connection with two sections of protection tubes to be spliced, a protrusion 20 is integrally formed at the end of the connector 10, the protrusion 20 is located outside the connector 10, a first inclined surface 21 is formed on one side of the protrusion 20 facing the center of the connector 10, and a first plane 22 parallel to an axis of the protection tube is formed on one side of the protrusion 20 away from the protection tube. The band 30 is surrounded on the outer side of the connecting head 10, the band 30 is made of stainless steel sheet, the inner wall of the band 30 is provided with a second inclined surface 31 abutting against the first inclined surface 21, and the inner wall is provided with a second flat surface 32 abutting against the first flat surface 22. The band 30 also has a gripping portion that abuts the outer surface of the protective tube. Still set up a plurality of chutes 35 along the length direction evenly distributed of strap 30 on strap 30, one end integrated into one piece at strap 30 has mount pad 42, screw rod 41 with mount pad 42 and strap 30 meshing simultaneously has in mount pad 42, penetrate the other end of strap 30 in the mount pad 42, screw rod 41 is located between the two-layer of strap 30, it meshes with chute 35 to rotate screw rod 41, lock strap 30, second plane 32 just exerts a protection tube radial direction's power to first plane 22, strengthen being connected between protection tube and the connector 10. Meanwhile, the first inclined surface 21 applies an oblique pressure to the second inclined surface 31, which has the following effects: 1. ensuring that the bulge 20 and the strap 30 are not separated; 2. first inclined plane 21 decomposes into the pressure and the connector 10 thrust towards the protection tube along protection tube radial direction to the pressure of second inclined plane 31 finally, the pressure along the protection tube radial direction can further increase the pressure of connector 10 to the protection tube radial direction, make joint strength between connector and the protection tube higher, thrust towards the protection tube can make the screw thread production extrusion each other between connector 10 and the protection tube, thereby make frictional force between connector 10 and the protection tube bigger, obtain the effect that prevents the threaded connection between connector 10 and the protection tube not hard up.

In this embodiment, the rubber head 33 is provided on the surface of the band 30 contacting the protection tube, and cooperates with the recess on the outer surface of the winding tube used as the protection tube to enhance the friction force between the protection tube and the band 30, thereby preventing the band 30 and the protection tube from sliding relatively.

In this embodiment, the positioning member 50 is disposed on the protrusion 20, the band 30 has the limiting hole 34, the positioning member 50 is matched with the limiting hole 34, the positioning member 50 is a cylinder integrally formed with the connector 10, the cylinder is located outside the connector 10, and the cylinder penetrates into the limiting hole 34 to be matched, so as to limit the circumferential rotation of the band 30, and slide along the axis of the protection tube, so that the band 30 is prevented from moving when an operator fastens the band. The position-limiting hole 34 in this embodiment may also be configured to fit in a groove-like manner with the positioning member 50.

In this embodiment, the connector 10 is provided with a limiting plate 60, and the limiting plate 60 abuts against the strap 30. The limiting plate 60 is L-shaped and is integrally formed with the connector 10, and the limiting plate 60 is located on one side of the clamp 30 away from the protection tube, so as to limit the outward expansion of the clamp 30, and further limit the separation of the positioning member 50 from the limiting hole 34, thereby achieving the purpose of limiting the clamp 30 from falling off from the connector 10.

In this embodiment, the adjusting structure 40 further includes an operating section 43, the operating section 43 is fixedly connected to the screw 41 and located outside the mounting seat 42, the operating section 43 is a sheet structure or a hexagonal nut structure, so as to facilitate the operation of a wrench or other tool, and the screw 41 is driven to engage with the chute 35 by rotating the operating section 43.

Example 2:

as shown in fig. 5 and 6, the present embodiment is different from embodiment 1 in that the adjusting structure 40 includes a first latch 44 and a second latch 45, the first latch 44 and the second latch 45 are respectively fixedly connected to two ends of the band 30, the first latch 44 and the second latch 45 are in snap fit, and the first latch 44 and the second latch 45 are staggered and intersected to perform the snap fit, so as to fasten the connector 10 and the protective tube by the band 30.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. A kind of power cable protective pipe junction device, characterized by: the connector comprises a connector, wherein the end of the connector is provided with an internal thread for being in threaded connection with a protection tube;

the bulge is integrally formed with the connector, the bulge is positioned on the outer side of the connector and at the end of the connector, and a first inclined surface is arranged on one side, away from the protective tube, of the bulge;

the inner wall of the clamping band is provided with a second inclined plane which is abutted against the first inclined plane, and the clamping band is abutted against the outer side of the protection tube;

and an adjustment structure for controlling the fastening state of the band.

2. The protective tube connecting device according to claim 1, wherein the band has a rubber head on a surface contacting the protective tube.

3. The protective tube connecting device according to claim 2, wherein: the bulge is provided with a positioning piece, the hoop belt is provided with a limiting hole, and the positioning piece is matched with the limiting hole.

4. The protective tube connecting device according to claim 3, wherein: be equipped with the limiting plate on the connector, the limiting plate with the strap is contradicted.

5. The protective tube connecting device as claimed in any one of claims 1 to 4, wherein said band has a tapered slot thereon, and said adjusting structure includes a threaded rod engaged with said tapered slot and a mounting seat located outside said threaded rod, said threaded rod being engaged with said mounting seat.

6. The protective tube connection device of claim 5, wherein the adjustment structure further comprises an operating section fixedly connected to the threaded rod and located outside the mounting seat.

7. The protective tube connecting device according to any one of claims 1 to 4, wherein the adjusting structure includes a first latch and a second latch, the first latch and the second latch are fixedly connected to both ends of the band, respectively, and the first latch and the second latch are snap-fitted.