CN217388099U

CN217388099U - MPP tubular product with built-in protective layer

Info

Publication number: CN217388099U
Application number: CN202220013955.0U
Authority: CN
Inventors: 吴广荣
Original assignee: Jiangsu Yatong Pipeline Development Co ltd
Current assignee: Jiangsu Yatong Pipeline Development Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-09-06
Anticipated expiration: 2032-01-06

Abstract

The utility model discloses an MPP pipe with a built-in protective layer, which belongs to the field of MPP pipe, and comprises an inner pipe, an outer pipe is sleeved at the outer end of the inner pipe, a buffer layer is sleeved at the outer end of the inner pipe, the buffer layer is positioned inside the outer pipe, a plurality of evenly distributed sliding rods are fixedly connected with the inner wall of the outer pipe, a pair of movable balls are sleeved at the outer ends of the sliding rods, connecting rods are rotatably connected between the movable balls and the buffer layer, a magnetism isolating bag body is fixedly connected between the connecting rods, magnetism isolating powder is filled inside the magnetism isolating bag body, the scheme realizes that when the outer pipe is extruded by collision, two movable balls and the connecting rods are driven to be away from each other by virtue of extrusion force, the magnetism isolating bag body is pulled to deform, so that a magnet block and a magnet sheet are in a repelling state, the collision extrusion force is counteracted by matching the mutually repulsive force, and the collision extrusion force transmitted to the inner pipe is slowed down, so that the protective cover is not easy to be damaged and the protective effect is enhanced.

Description

MPP tubular product with built-in protective layer

Technical Field

The utility model relates to a MPP tubular product field, more specifically say, relate to a MPP tubular product with built-in protective layer.

Background

The MPP pipe is also called MPP power cable protection pipe and is divided into an excavation type and a non-excavation type, the MPP non-excavation pipe is called MPP jacking pipe or a dragging pipe, the MPP pipe adopts modified polypropylene as main raw materials, has the characteristics of high temperature resistance and external pressure resistance, is suitable for medium and low voltage transmission line cable calandria pipes below 10KV, is generally arranged into a single-layer or double-layer pipe, and can be widely applied to pipeline engineering of municipal administration, telecommunication, electric power, coal gas, tap water, heating power and the like.

Double-deck MPP pipe of prior art is easily received the collision extrusion in the use, transmits the pipeline of inside and easily makes it take place to damage, influences the work of inside cable, has reduced its result of use.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a MPP tubular product with built-in protective layer, this scheme is realized when the outer tube receives the collision extrusion, drive two movable balls and connecting rod with the help of the extrusion force and keep away from each other, and the magnetism utricule deformation that stimulates makes magnet piece and magnet piece be in the exclusive state mutually to offset the collision extrusion force through repulsion cooperation buffer layer mutually, slow down the collision extrusion force that transmits on the inner tube, make its difficult emergence damage, reinforcing protection effect.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

An MPP pipe with a built-in protective layer comprises an inner pipe, wherein an outer pipe is sleeved at the outer end of the inner pipe, a buffer layer is sleeved at the outer end of the inner pipe and located inside the outer pipe, a plurality of sliding rods which are uniformly distributed are fixedly connected to the inner wall of the outer pipe, a pair of movable balls are sleeved at the outer ends of the sliding rods, a plurality of pairs of connecting rods are rotatably connected between the movable balls and the buffer layer, a magnet insulating bag body is fixedly connected between the pair of connecting rods, magnet insulating powder is filled inside the magnet insulating bag body, a magnet block is arranged inside the magnet insulating bag body, a plurality of magnet sheets which are uniformly distributed are fixedly connected to the inner wall of the outer pipe, the magnet blocks correspond to the magnet sheets, one ends, close to each other, of the magnet sheets and one end, close to each other, of the magnet sheets and the magnet blocks are mutually exclusive with each other when the outer pipe is extruded by means of extrusion force, the magnetism isolating capsule body is pulled to deform, the magnet blocks and the magnet pieces are in a mutually exclusive state, the collision extrusion force is offset by matching the repulsive force with the buffer layer, the collision extrusion force transmitted to the inner tube is slowed down, the inner tube is not easy to damage, and the protection effect is enhanced.

Further, the outer end of inner tube and outer tube all is equipped with the heat-conducting layer, the inside packing of heat-conducting layer has diamond powder, has diamond powder's heat-conducting layer through setting up inside packing, makes inner tube and outer tube dredge fast the heat that the cable produced and gives off, avoids causing the influence to it, reinforcing radiating effect.

Furthermore, the buffer layer adopts rubber materials to make, the outer end of buffer layer is dug and is had a plurality of evenly distributed's louvre, can play good cushioning effect through the buffer layer that uses rubber materials to make, and sets up the louvre and make things convenient for the heat to distribute out fast, and difficult accumulation is inside it.

Further, two the inner wall of movable ball is opened and is dug there are two spherical grooves, two pairs spherical groove's inside all rotates and is connected with the ball, two pairs the outer end of ball all contacts with the outer end of slide bar, through the setting of ball, makes the movable ball slide more smoothly convenient on the slide bar, reduces the friction influence.

Further, the magnetism-insulating powder is made of an Fe-Ni alloy material, the Ni content of the magnetism-insulating powder is 80%, and the magnetism-insulating powder made of the Fe-Ni alloy material can effectively shield the magnetic influence of the magnet blocks in a dense state, but cannot effectively shield the magnetic influence of the magnet blocks in a dispersed state.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is realized receiving the collision extrusion at the outer tube, drives two movable balls and connecting rod with the help of the extrusion force and keeps away from each other, and the deformation of pulling magnet isolation utricule makes magnet piece and magnet piece be in the state of repelling mutually to offset the collision extrusion force through repulsion force cooperation buffer layer mutually, slow down the collision extrusion force of transmitting on the inner tube, make it be difficult for taking place to damage, reinforcing protection effect.

(2) The outer end of inner tube and outer tube all is equipped with the heat-conducting layer, and the inside packing of heat-conducting layer has diamond powder, has diamond powder's heat-conducting layer through setting up inside packing, makes inner tube and outer tube dredge the heat that the cable produced fast and gives off, avoids causing the influence to it, reinforcing radiating effect.

(3) The buffer layer adopts rubber materials to make, and the outer end of buffer layer is opened and is dug the louvre that has a plurality of evenly distributed, can play good cushioning effect through the buffer layer that uses rubber materials to make, and sets up the louvre and make things convenient for the heat to distribute away fast, and difficult accumulation is inside it.

(4) The inner wall of two movable balls is cut and chiseled and is had two spherical grooves, and the inside of two pairs of spherical grooves all rotates and is connected with the ball, and the outer end of two pairs of balls all contacts with the outer end of slide bar, through the setting of ball, makes the movable ball slide more smoothly convenient on the slide bar, reduces the friction influence.

(5) The magnetic insulation powder is made of Fe-Ni alloy material, the Ni content in the magnetic insulation powder is 80%, and the magnetic influence of the magnet blocks can be effectively shielded in a dense state and can not be effectively shielded in a dispersed state by using the magnetic insulation powder made of the Fe-Ni alloy material.

Drawings

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

FIG. 2 is a schematic view of the overall side view cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the overall partial cross-sectional structure of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

The reference numbers in the figures illustrate:

1. an inner tube; 2. an outer tube; 3. a buffer layer; 301. heat dissipation holes; 4. a slide bar; 5. a movable ball; 501. a ball bearing; 6. a connecting rod; 7. a magnetic isolation capsule body; 8. a magnetically inert powder; 9. a magnet block; 10. and a magnet piece.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-4, an MPP tube with a built-in protective layer includes an inner tube 1, an outer tube 2 is sleeved at an outer end of the inner tube 1, a buffer layer 3 is sleeved at an outer end of the inner tube 1, the buffer layer 3 is positioned inside the outer tube 2, a plurality of sliding rods 4 are fixedly connected to an inner wall of the outer tube 2, a pair of movable balls 5 is sleeved at outer ends of the sliding rods 4, a plurality of pairs of movable balls 5 are rotatably connected between the movable balls 5 and the buffer layer 3, a magnetic isolation capsule 7 is fixedly connected between the pair of connecting rods 6, magnetic isolation powder 8 is filled inside the magnetic isolation capsule 7, a magnet block 9 is arranged inside the magnetic isolation capsule 7, a plurality of uniformly distributed magnet sheets 10 are fixedly connected to an inner wall of the outer tube 2, the magnet block 9 corresponds to the magnet sheet 10, one ends of the magnet sheet 10 and the magnet block 9, which are close to each other, are repulsive to each other, the two movable balls 5 and the connecting rod 6 are driven to be away from each other by virtue of extrusion force, the magnetism isolating capsule body 7 is pulled to deform, the magnet block 9 and the magnet piece 10 are in a mutually exclusive state, the collision extrusion force is counteracted by the cooperation of the repulsive force and the buffer layer 3, the collision extrusion force transmitted to the inner pipe 1 is slowed down, the inner pipe is not easy to damage, and the protection effect is enhanced.

Please refer to fig. 2-3, the outer ends of the inner tube 1 and the outer tube 2 are both provided with heat conduction layers, the inside of the heat conduction layers is filled with diamond powder, the heat conduction layers filled with the diamond powder are arranged inside, so that the inner tube 1 and the outer tube 2 can quickly dissipate the heat generated by the cable, thereby avoiding influencing the cable, enhancing the heat dissipation effect, the buffer layer 3 is made of rubber material, the outer end of the buffer layer 3 is provided with a plurality of uniformly distributed heat dissipation holes 301, the buffer layer 3 made of rubber material can play a good buffering role, and the heat dissipation holes 301 are arranged to facilitate the quick heat dissipation, so that the heat is not easy to accumulate inside the buffer layer.

Referring to fig. 2 to 4, two spherical grooves are chiseled on the inner walls of two movable balls 5, the inner portions of the two pairs of spherical grooves are rotatably connected with balls 501, the outer ends of the two pairs of balls 501 are in contact with the outer end of the sliding rod 4, the movable balls 5 slide on the sliding rod 4 more smoothly and conveniently by the arrangement of the balls 501, and friction influence is reduced, the magnetic insulation powder 8 is made of Fe — Ni alloy material, the content of Ni in the magnetic insulation powder 8 is 80%, the magnetic insulation powder 8 made of Fe — Ni alloy material can effectively shield the magnetic influence of the magnet block 9 in a dense state, and the magnetic influence cannot be effectively shielded in a dispersed state.

The utility model discloses in, when outer tube 2 receives the collision extrusion, it takes place deformation to act on

outer tube

2, 6 alternate segregation expandes of two connecting rods of extrusion, and drive two movable balls 5 and separate the slip mutually through ball 501's supplementary on slide bar 4, 7 deformation of the degaussing utricule of pulling, it disperses to drive degaussing powder 8, cancel magnet piece 9's magnetic screen, make magnet piece 9 and magnet piece 10 be in the state of repelling mutually, offset the collision extrusion force of acting on outer tube 2 with the help of repulsion mutually, reduce the extrusion force, and at the cushioning effect of buffer layer, further slow down the collision extrusion force that transmits to inner tube 1, make its difficult emergence damage, avoid causing the influence to the cable, reinforcing protection effect.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. An MPP tubular product with built-in protective layer, includes inner tube (1), its characterized in that: the outer end of the inner tube (1) is sleeved with the outer tube (2), the outer end of the inner tube (1) is sleeved with the buffer layer (3), the buffer layer (3) is located inside the outer tube (2), the inner wall of the outer tube (2) is fixedly connected with a plurality of sliding rods (4) which are uniformly distributed, the outer ends of the sliding rods (4) are sleeved with a pair of movable balls (5), a plurality of pairs of the movable balls (5) and the buffer layer (3) are rotatably connected with connecting rods (6), a pair of magnet insulation capsules (7) are fixedly connected between the connecting rods (6), the magnet insulation capsules (7) are filled with magnet insulation powder (8), magnet blocks (9) are arranged inside the magnet insulation capsules (7), the inner wall of the outer tube (2) is fixedly connected with a plurality of magnet sheets (10) which are uniformly distributed, and the magnet blocks (9) correspond to the magnet sheets (10), the magnet piece (10) and the magnet block (9) are mutually repelled at the ends close to each other.

2. The MPP tube with built-in protective layer of claim 1, wherein: the outer ends of the inner tube (1) and the outer tube (2) are both provided with heat conduction layers, and diamond powder is filled in the heat conduction layers.

3. The MPP tube with built-in protective layer of claim 1, wherein: the buffer layer (3) is made of rubber materials, and a plurality of heat dissipation holes (301) which are uniformly distributed are formed in the outer end of the buffer layer (3).

4. The MPP tube with built-in protective layer of claim 1, wherein: two the inner wall of activity ball (5) is opened and is dug there are two spherical grooves, two pairs the inside of spherical groove all rotates and is connected with ball (501), two pairs the outer end of ball (501) all contacts with the outer end of slide bar (4).

5. The MPP tube with built-in protective layer of claim 1, wherein: the magnetic isolation powder (8) is made of Fe-Ni alloy materials, and the content of Ni in the magnetic isolation powder (8) is 80%.