CN209913411U

CN209913411U - MPP ripple protection power cable pipe

Info

Publication number: CN209913411U
Application number: CN201920745547.2U
Authority: CN
Inventors: 陆欢成; 何玲玲; 徐强
Original assignee: Hangzhou Saint - Hao Pipeline Co Ltd
Current assignee: Hangzhou Saint - Hao Pipeline Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-01-07
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses an MPP ripple protection power cable pipe, which comprises a corrugated pipe, wherein a bending protection device is arranged inside the corrugated pipe; the bending protection device comprises a plurality of groups of protection mechanisms and bending mechanisms for connection among the groups of protection mechanisms, each protection mechanism comprises an inner pipe, a supporting rod and an arc-shaped plate, one end of each supporting rod is radially and equidistantly fixed on the outer wall of the inner pipe, and the arc-shaped plates are welded at the other ends of the supporting rods. This MPP ripple protection power cable pipe, when the bellows in outside takes place the damage, because the mechanism that passes through between a plurality of inner tubes is connected, wholly takes place the bending, the inner tube can be fine the bending and can not take place the damage, let the cable can not expose externally, when certain one section inner tube takes place the bending, the second spring can lengthen or shorten, drive the spin and remove in the constant head tank, the flexible of the first spring of deuterogamying for can accomplish the bending action, and can not cause the inner tube to damage.

Description

MPP ripple protection power cable pipe

Technical Field

The utility model relates to a cable duct technical field specifically is a MPP ripple protection power cable pipe.

Background

Traditional MPP cable pipe structure is single, and the MPP cable pipe plays the guard action to the outside of cable, and when the cable was crooked in the MPP cable pipe, traditional MPP cable pipe did not have the cable after the bending to protect, easily leads to the emergence of the crooked position of cable damaged phenomenon to appear, has influenced the normal use of cable, has reduced the life of cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a MPP ripple protection power cable pipe, the inner tube can be crooked can not take place the advantage of damaging when having the inner tube protection cable of increase, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: an MPP corrugated protection power cable pipe comprises a corrugated pipe, wherein a plurality of groups of protection mechanisms and bending mechanisms for connection among the protection mechanisms are arranged in the corrugated pipe, each protection mechanism consists of an inner pipe, a supporting rod and an arc-shaped plate, one end of each supporting rod is radially and equidistantly fixed on the outer wall of the inner pipe, the arc-shaped plates are welded at the other ends of the supporting rods, the outer walls of the arc-shaped plates are fixed with the inner wall of the corrugated pipe, and a plurality of positioning grooves are machined in the caliber of the inner pipe;

the bending mechanism comprises positioning blocks, rolling balls, a first spring and a second spring, the positioning blocks are respectively fixed in adjacent positioning grooves, the positioning blocks are fixed with one end of the first spring, the other end of the first spring is connected with the rolling balls, and the rolling balls are connected through the second spring.

Preferably, two ports of the supporting rod are perpendicular to the contact surface of the inner pipe and the arc-shaped plate.

Preferably, the inner tube is provided with a plurality of heat dissipation holes along the axis direction, and the cable penetrates through the inner tube.

Preferably, the curvature of the arc plate is the same as that of the corrugated pipe, and the outer ring of the arc plate is matched with the inner diameter of the corrugated pipe.

Preferably, a baffle ring is fixed on the outer edge opening of the positioning groove, and the distance between the inner edge of the baffle ring and the inner edge opening of the positioning groove is smaller than the diameter of the rolling ball.

Preferably, the second spring is externally sleeved with flexible pipes which are respectively connected with the two rolling balls.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. this MPP ripple protection power cable pipe, the both ends mouth of bracing piece all is perpendicular with the contact surface of inner tube and arc, the bracing piece is connected arc and inner tube both, fix the position of inner tube, the arc can radially play the effect of support to the bellows, with the quick dispersion of the power that the bellows received to a plurality of bracing pieces, absorb, the inside of inner tube runs through the cable, the inner tube can be fine the bending and can not take place the damage, let the cable can not expose externally, the inner tube structure of increase, play the secondary protection to the cable.

2. This MPP ripple protection power cable pipe, because the mechanism that passes through between a plurality of inner tubes is connected, wholly take place crooked, the inner tube can be fine the bending and can not take place the damage, let the cable can not expose externally, when certain one section inner tube takes place crooked, the second spring can lengthen or shorten, drives the spin and removes in the constant head tank, the flexible of the first spring of deuterogamying for can accomplish crooked action, and can not cause the inner tube to damage.

Drawings

FIG. 1 is an external structural view of the present invention;

FIG. 2 is a structural view of the bending protector of the present invention;

fig. 3 is an enlarged view of a in fig. 2 according to the present invention;

FIG. 4 is a structural view of the bending mechanism of the present invention;

fig. 5 is a front view of the positioning groove of the present invention.

In the figure: 1. a bellows; 2. a protection mechanism; 21. an inner tube; 22. a support bar; 23. an arc-shaped plate; 3. a bending mechanism; 31. positioning blocks; 32. rolling a ball; 33. a first spring; 34. a second spring; 4. and (6) positioning a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, an MPP ripple protection power cable pipe includes a corrugated pipe 1, a plurality of protection mechanisms 2 and a bending mechanism 3 for connecting the protection mechanisms 2 are installed inside the corrugated pipe 1, each protection mechanism 2 includes an inner pipe 21, a support rod 22 and an arc-shaped plate 23, one end of the support rod 22 is radially and equidistantly fixed on the outer wall of the inner pipe 21, the arc-shaped plate 23 is welded on the other end of the support rod 22, two ports of the support rod 22 are perpendicular to the contact surfaces of the inner pipe 21 and the arc-shaped plate 23, the support rod 22 connects the arc-shaped plate 23 and the inner pipe 21, the position of the inner pipe 21 is fixed, the outer wall of the arc-shaped plate 23 is fixed to the inner wall of the corrugated pipe 1, the curvature of the arc-shaped plate 23 is the same as that of the corrugated pipe 1, the outer ring of the arc-shaped plate 23 is adapted to the inner diameter of the corrugated pipe 1, the, with the quick dispersion of the power that bellows 1 received to a plurality of bracing pieces 22, absorb, can not influence the bending of bellows 1 yet, process a plurality of constant head tanks 4 on the bore of inner tube 21, the inside cable that runs through of inner tube 21, the inner tube 21 structure of increase, play the secondary protection to the cable, when bellows 1 externally takes place the damage, because connecting through bending mechanism 3 between a plurality of inner tubes 21, take place the bending wholly, the bending that inner tube 21 can be fine and can not take place the damage, let the cable can not expose externally, inner tube 21 has many louvres along the processing of axis direction, the cable can produce the heat when the circular telegram, utilize the louvre that sets up to discharge cable radiating heat from inner tube 21, with heat dissipation to bellows 1, the lowering temperature.

Referring to fig. 4, the bending mechanism 3 includes a positioning block 31, rolling balls 32, a first spring 33 and a second spring 34, the positioning block 31 is respectively fixed in adjacent positioning slots 4, the positioning block 31 cannot move, the positioning block 31 is fixed to one end of the first spring 33, the other end of the first spring 33 is connected to the rolling balls 32, the rolling balls 32 are connected to each other through the second spring 34, flexible tubes respectively connected to the two rolling balls 32 are sleeved outside the second spring 34, when the inner tube 21 of a certain section is bent, the second spring 34 can be lengthened or shortened to drive the rolling balls 32 to move in the positioning slots 4, and then the inner tube 21 is matched with the first spring 33 to stretch, so that the bending operation can be completed without damaging the inner tube 21.

Referring to fig. 5, a stop ring is fixed on the outer edge of the positioning groove 4, the distance between the inner edge of the stop ring and the inner edge of the positioning groove 4 is smaller than the diameter of the rolling ball 32, and the stop ring is designed to allow the rolling ball 32 to move back and forth only in the designed plurality of positioning grooves 4 without separating.

In summary, the following steps: this MPP ripple protection power cable pipe, the both ends mouth of bracing piece 22 all is perpendicular with the contact surface of inner tube 21 and arc 23, bracing piece 22 connects arc 23 and inner tube 21 both, fix the position of inner tube 21, arc 23 can play the effect of supporting to the radial of bellows 1, with the quick dispersion of the power that bellows 1 received to a plurality of bracing pieces 22, absorb, can not influence the bending of bellows 1 yet, when outside bellows 1 takes place the damage, because connect through bending mechanism 3 between a plurality of inner tubes 21, wholly take place the bending, inner tube 21 can fine bending and can not take place the damage, let the cable can not expose outside, when certain section inner tube 21 takes place the bending, second spring 34 can lengthen or shorten, drive 32 and remove in constant head tank 4, cooperate the flexible of first spring 33 again, make and can accomplish the bending action, without causing damage to the inner tube 21.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a MPP ripple protection power cable pipe, includes bellows (1), its characterized in that: a plurality of groups of protection mechanisms (2) and bending mechanisms (3) are arranged inside the corrugated pipe (1), each protection mechanism (2) consists of an inner pipe (21), a support rod (22) and an arc-shaped plate (23), one end of each support rod (22) is radially and equidistantly fixed on the outer wall of the inner pipe (21), the arc-shaped plates (23) are welded at the other ends of the support rods (22), the outer walls of the arc-shaped plates (23) are fixed with the inner wall of the corrugated pipe (1), and a plurality of positioning grooves (4) are machined in the caliber of the inner pipe (21);

the bending mechanism (3) comprises a positioning block (31), rolling balls (32), a first spring (33) and a second spring (34), the positioning block (31) is fixed in the adjacent positioning grooves (4) respectively, the positioning block (31) is fixed with one end of the first spring (33), the other end of the first spring (33) is connected with the rolling balls (32), and the rolling balls (32) are connected through the second spring (34).

2. The MPP corrugated protection power cable pipe of claim 1, wherein: two ports of the supporting rod (22) are perpendicular to the contact surface of the inner tube (21) and the arc-shaped plate (23).

3. The MPP corrugated protection power cable pipe of claim 1, wherein: the inner tube (21) is provided with a plurality of heat dissipation holes along the axis direction, and the cable penetrates through the inner portion of the inner tube (21).

4. The MPP corrugated protection power cable pipe of claim 1, wherein: the curvature of the arc-shaped plate (23) is the same as that of the corrugated pipe (1), and the outer ring of the arc-shaped plate (23) is matched with the inner diameter of the corrugated pipe (1).

5. The MPP corrugated protection power cable pipe of claim 1, wherein: a baffle ring is fixed on the outer edge opening of the positioning groove (4), and the distance between the inner edge of the baffle ring and the inner edge opening of the positioning groove (4) is smaller than the diameter of the rolling ball (32).

6. The MPP corrugated protection power cable pipe of claim 1, wherein: the outside of the second spring (34) is sleeved with a flexible pipe which is respectively connected with the two rolling balls (32).