CN219874903U - External pressure resistant MPP pipe structure - Google Patents
External pressure resistant MPP pipe structure Download PDFInfo
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- CN219874903U CN219874903U CN202320848173.3U CN202320848173U CN219874903U CN 219874903 U CN219874903 U CN 219874903U CN 202320848173 U CN202320848173 U CN 202320848173U CN 219874903 U CN219874903 U CN 219874903U
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- external pressure
- buffer
- heat dissipation
- pipe body
- dissipation air
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000004743 Polypropylene Substances 0.000 claims abstract description 4
- -1 polypropylene Polymers 0.000 claims abstract description 4
- 229920001155 polypropylene Polymers 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model provides an external pressure resistant MPP (maximum power point) pipe structure, which relates to the technical field of MPP pipes and aims to solve the problem that an existing MPP pipe is inconvenient to indirectly radiate heat of a power cable inside the MPP pipe by using external pressure when the existing MPP pipe is subjected to the external pressure, and comprises a pipe body and an installation sleeve, wherein the pipe body is made of modified polypropylene; an outer pressure bag cavity is arranged on the circumferential outer wall of the tube body; the outer pressure bag cavity protrudes out of the outer wall of the pipe body; a heat dissipation air bag is arranged in the outer pressure air bag cavity; the external pressure bag cavity transmits pressure to the heat dissipation air bag when receiving external pressure; the inner end of the heat dissipation air bag is provided with a heat dissipation air head; the mounting sleeve is positioned in the pipe body; the mounting sleeve is of a cylindrical structure; the inner end of the heat dissipation air head penetrates through the outer wall of the mounting sleeve and is communicated with the inside of the mounting sleeve; a buffer rubber head is arranged on the circumferential inner wall of the pipe body; the buffer rubber head is made of flexible materials. The utility model can effectively utilize the external pressure as the driving source to indirectly dissipate heat of the cable.
Description
Technical Field
The utility model belongs to the technical field of MPP pipes, and particularly relates to an external pressure resistant MPP pipe structure.
Background
The MPP pipe is a pipe for protecting a power cable, and has the characteristics of high temperature resistance, deformation resistance, excellent insulation and the like.
For example, the application number is: CN202220131857.7, which discloses a flared MPP protection tube, comprises a protection body, a support, a heat insulating layer, a cushion pad, a spring frame, a clamping spring, a protection piece and a fixing hole. The utility model belongs to the technical field of MPP protection pipes, in particular to a flaring MPP protection pipe, which effectively solves the defects of most functions, simplicity and crude structure of the traditional MPP protection pipe in the current market, ensures the basic MPP cable protection effect, can also ensure the heat insulation and shock absorption functions, further improves the protection effect of the whole device, and is a very excellent flaring MPP protection pipe.
When the existing MPP pipe structure is used, in order to improve the external pressure resistant buffering performance of the MPP pipe, a spring is added in the MPP pipe, but elastic fatigue is easy to generate under long-time use of the spring, the external pressure resistance of the MPP pipe is easy to be reduced, meanwhile, the MPP pipe only achieves the external pressure resistant function, and the existing MPP pipe is inconvenient to indirectly radiate heat of a power cable in the MPP pipe by using external pressure when the MPP pipe is subjected to external pressure.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an external pressure resistant MPP pipe structure, so as to solve the problem that the existing MPP pipe is inconvenient to indirectly radiate heat of a power cable in the MPP pipe by using external pressure when the existing MPP pipe is subjected to the external pressure.
The purpose and the efficiency of the MPP pipe structure resistant to external pressure are achieved by the following specific technical means:
the MPP pipe structure resistant to external pressure comprises a pipe body and a mounting sleeve, wherein the pipe body is made of modified polypropylene; an outer pressure bag cavity is arranged on the circumferential outer wall of the tube body; the outer pressure bag cavity protrudes out of the outer wall of the pipe body; a heat dissipation air bag is arranged in the outer pressure air bag cavity; the external pressure bag cavity transmits pressure to the heat dissipation air bag when receiving external pressure; the inner end of the heat dissipation air bag is provided with a heat dissipation air head; the mounting sleeve is positioned in the pipe body; the mounting sleeve is of a cylindrical structure; the inner end of the heat dissipation air head penetrates through the outer wall of the mounting sleeve and is communicated with the inside of the mounting sleeve.
Further, a buffer rubber head is arranged on the circumferential inner wall of the pipe body; the buffer rubber head is made of flexible materials; the buffer rubber head is provided with a buffer groove; the buffer groove is of a conical structure with wide inside and narrow outside; a mounting ring is arranged on the circumferential inner wall of the mounting sleeve; the mounting ring is of a circular ring structure; the front side and the rear side of the mounting ring are provided with reducing grooves; the reduction groove is of a conical structure.
Further, the reducing groove is provided with vent holes in a surrounding arrangement; a buffer column is arranged on the circumferential outer wall of the mounting sleeve; the buffer column is of a cylindrical structure; the outer end of the buffer column is of a conical structure; the outer end of the buffer column is inserted and installed in the buffer groove; the conical inclined surface at the outer end of the buffer column is in fit contact with the conical inclined surface of the buffer groove.
Further, one end provided with a buffer spring is embedded in the middle position of the outer end of the buffer column; the other end of the buffer spring is embedded and arranged on the outer side wall of the buffer groove; after the external pressure bag cavity transmits the external pressure to the heat dissipation air bag, the heat dissipation air bag is compressed by force to generate air flow; the air flow generated by compression of the heat dissipation air bag enters the inside of the installation sleeve through the heat dissipation air head; when the pipe body is directly subjected to external pressure, the buffer groove on the pipe body is matched with the outer end of the buffer column to extrude the buffer spring; when the buffer column and the buffer groove are matched to extrude the buffer spring, the inclined surface of the buffer column can push the inclined surface of the buffer groove.
Compared with the prior art, the utility model has the following beneficial effects:
1. when the utility model is used, the outer pressure bag cavity is designed to protrude out of the pipe body, so that the outer pressure bag cavity can be subjected to external pressure preferentially, and the pressure of the outer pressure bag cavity can be transmitted to the heat dissipation air bag arranged in the outer pressure bag cavity after the outer pressure bag cavity is subjected to pressure, so that the heat dissipation air bag is compressed under the influence of extrusion to generate air flow, the generated air flow enters the inside of the installation sleeve through the heat dissipation air head, the cable in the installation sleeve can be conveniently subjected to local heat dissipation, and the external pressure is effectively utilized as a driving source to indirectly dissipate the heat of the cable.
2. When the pipe body is subjected to stronger pressure, the buffer groove on the pipe body can be matched with the outer end of the buffer column to extrude the buffer spring, so that the buffer column and the buffer groove are matched to extrude the buffer spring, the pressure resistance of the MPP pipe structure is improved, and when the buffer column and the buffer groove are matched to extrude the buffer spring, the inclined surface of the buffer column can also push the inclined surface of the buffer groove to extrude the buffer groove, so that the buffer groove is matched with the flexible material of the buffer rubber head by utilizing the characteristic of being a conical structure, the external pressure is dispersed again, the influence of the external pressure on a cable in the installation sleeve is further reduced, and the external pressure resistance of the MPP pipe structure is improved.
3. According to the utility model, the contact area between the mounting ring and the cable is reduced by reducing the opening of the groove, so that the cable can be conveniently and effectively radiated by being matched with the air flow generated by the radiating air bag.
4. According to the utility model, the external pressure is firstly reduced by the cooperation of the external pressure bag cavity and the heat dissipation air bag, then the buffer spring is extruded to buffer the external pressure in the second step, and finally the external pressure can be further reduced by extruding the flexible material, so that the external pressure resistance of the MPP pipe can be fully improved through three buffer steps, even if the buffer spring has elastic fatigue, the pressure resistance of the MPP pipe can be ensured by other two buffer structures, and the single service life of the MPP pipe can be prolonged through the arrangement of the three buffer pressure-resistant structures.
Drawings
FIG. 1 is a schematic view of the structure of a pipe body of the present utility model.
FIG. 2 is a schematic view of a half-section of a pipe body according to the present utility model.
FIG. 3 is a schematic view of the pipe body and mounting sleeve of the present utility model in semi-section.
Fig. 4 is an enlarged schematic view of the portion a of fig. 3 according to the present utility model.
FIG. 5 is a schematic view of a semi-sectional structure of a mounting ring and a heat dissipating airbag of the present utility model.
In the figure, the correspondence between the component names and the drawing numbers is:
1. a tube body; 101. an outer pressure bladder cavity; 102. a heat dissipation air bag; 103. a heat dissipating head; 104. buffering the rubber head; 105. a buffer tank; 2. a mounting sleeve; 201. a mounting ring; 202. a reduction groove; 203. a vent hole; 204. a buffer column; 205. and a buffer spring.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples.
Examples:
as shown in fig. 1 to 5:
the utility model provides an external pressure resistant MPP pipe structure, which comprises a pipe body 1 and a mounting sleeve 2, wherein the pipe body 1 is made of modified polypropylene; an outer pressure bag cavity 101 is arranged on the circumferential outer wall of the tube body 1; the outer pressure bag cavity 101 protrudes out of the outer wall of the tube body 1; a heat dissipation air bag 102 is arranged in the outer pressure bag cavity 101; the external pressure bag cavity 101 transmits pressure to the heat dissipation air bag 102 when receiving external pressure; the inner end of the heat dissipation air bag 102 is provided with a heat dissipation air head 103; the mounting sleeve 2 is positioned in the pipe body 1; the installation sleeve 2 is of a cylindrical structure, and the installation sleeve 2 is arranged for cable installation; the inner end of the heat radiation head 103 penetrates through the outer wall of the mounting sleeve 2 and is communicated with the inside thereof;
because the outer pressure bag cavity 101 adopts the design protruding out of the pipe body 1, the outer pressure bag cavity 101 can be subjected to external pressure preferentially, and after the outer pressure bag cavity 101 is subjected to pressure, the pressure can be transmitted to the heat dissipation air bag 102 arranged in the outer pressure bag cavity, so that the heat dissipation air bag 102 is compressed to generate air flow under the influence of extrusion, and the generated air flow can enter the installation sleeve 2 through the heat dissipation air head 103 to dissipate heat of a cable in the installation sleeve 2.
Wherein, the circumferential inner wall of the tube body 1 is provided with a buffer rubber head 104; the buffer rubber head 104 is made of flexible materials; the buffer rubber head 104 is provided with a buffer groove 105; the buffer groove 105 has a conical structure with wide inside and narrow outside; a mounting ring 201 is arranged on the circumferential inner wall of the mounting sleeve 2; the mounting ring 201 is of a circular ring structure; the front side and the rear side of the mounting ring 201 are provided with reducing grooves 202; the reduction groove 202 is of a conical structure; vent holes 203 are arranged on the reduction groove 202 in a surrounding manner; a buffer column 204 is arranged on the circumferential outer wall of the mounting sleeve 2; the buffer column 204 has a cylindrical structure; the outer end of the buffer column 204 is in a conical structure; the outer end of the buffer column 204 is inserted and installed in the buffer groove 105; the conical inclined surface at the outer end of the buffer column 204 is in fit contact with the conical inclined surface of the buffer groove 105;
through the setups of reducing groove 202, reduced the area of contact of collar 201 and cable, the convenience carries out effectual heat dissipation to the cable with the air current cooperation that heat dissipation gasbag 102 produced, through the setups of air vent 203, can guarantee to be located between the cable position and the other spaces of body 1 of installation cover 2 and have the air fluxion.
Wherein, one end provided with a buffer spring 205 is embedded in the middle position of the outer end of the buffer column 204; the other end of the buffer spring 205 is embedded and installed on the outer side wall of the buffer groove 105; after the external pressure bag cavity 101 transmits the external pressure to the heat dissipation air bag 102, the heat dissipation air bag 102 is stressed and compressed to generate air flow; the air flow generated by compression of the heat dissipation air bag 102 enters the inside of the mounting sleeve 2 through the heat dissipation air head 103; when the pipe body 1 is directly subjected to external pressure, the buffer groove 105 on the pipe body 1 is matched with the outer end of the buffer column 204 to squeeze the buffer spring 205; when the buffer column 204 and the buffer groove 105 are matched to extrude the buffer spring 205, the inclined surface of the buffer column 204 also pushes and extrudes the inclined surface of the buffer groove 105;
if the pipe body 1 is directly pressed, the buffer groove 105 on the pipe body 1 can be matched with the outer end of the buffer column 204 to squeeze the buffer spring 205, so that the buffer function of reducing the external pressure is achieved, and the pressure resistance of the pipe is improved;
when the buffer column 204 is matched with the buffer groove 105 to extrude the buffer spring 205, the inclined surface of the buffer column 204 can push and extrude the inclined surface of the buffer groove 105, so that the buffer groove 105 is matched with the flexible material of the buffer rubber head 104 by utilizing the characteristic that the buffer groove is of a conical structure, the external pressure is dispersed again, and the influence of the external pressure on the cable in the installation sleeve 2 is further reduced.
Specific use and action of the embodiment: when the MPP pipe structure is used, when the MPP pipe structure receives external pressure, the external pressure bag cavity 101 is projected out of the pipe body 1, so that the external pressure bag cavity 101 is subjected to external pressure preferentially, the pressure is transmitted to the heat dissipation air bag 102 arranged in the external pressure bag cavity 101 after the external pressure bag cavity 101 is subjected to pressure, the heat dissipation air bag 102 is compressed under the influence of extrusion to generate air flow, the generated air flow enters the inside of the installation sleeve 2 through the heat dissipation air head 103 to dissipate heat of a cable in the installation sleeve 2, if the pipe body 1 receives direct pressure, the buffer groove 105 on the pipe body 1 is matched with the outer end of the buffer column 204 to extrude the buffer spring 205, the buffer effect of reducing the external pressure is achieved, the pressure-resistant capacity of the MPP pipe structure is improved, and when the buffer column 204 is matched with the buffer groove 105 to extrude the buffer spring 205, the inclined surface of the buffer column 204 is pushed to extrude the inclined surface of the buffer groove 105, so that the buffer groove 105 is matched with the flexible material of the buffer rubber head 104 by utilizing the characteristic of being of a conical structure, the external pressure is dispersed again, and the influence of the external pressure on the cable in the installation sleeve 2 is further reduced.
Claims (8)
1. External pressure resistant MPP pipe structure, its characterized in that: the MPP pipe structure resistant to external pressure comprises a pipe body (1) and a mounting sleeve (2), wherein the pipe body (1) is made of modified polypropylene; an external pressure bag cavity (101) is arranged on the circumferential outer wall of the pipe body (1); the outer pressure bag cavity (101) protrudes out of the outer wall of the pipe body (1); a heat dissipation air bag (102) is arranged in the outer pressure air bag cavity (101); the external pressure bag cavity (101) transmits pressure to the heat dissipation air bag (102) when being subjected to external pressure; a heat radiation head (103) is arranged at the inner end of the heat radiation air bag (102); the mounting sleeve (2) is positioned in the pipe body (1); the mounting sleeve (2) is of a cylindrical structure; the inner end of the heat dissipation air head (103) penetrates through the outer wall of the mounting sleeve (2) and is communicated with the inside of the mounting sleeve.
2. The external pressure resistant MPP tube structure of claim 1, wherein: a buffer rubber head (104) is arranged on the circumferential inner wall of the pipe body (1); the buffer rubber head (104) is made of flexible materials; a buffer groove (105) is formed in the buffer rubber head (104); the buffer groove (105) is of a conical structure with wide inner part and narrow outer part.
3. The external pressure resistant MPP tube structure of claim 2, wherein: a mounting ring (201) is arranged on the circumferential inner wall of the mounting sleeve (2); the mounting ring (201) is of a circular ring structure; the front side and the rear side of the mounting ring (201) are provided with reducing grooves (202); the reduction groove (202) is of a conical structure.
4. The external pressure resistant MPP tube structure of claim 3, wherein: the reducing groove (202) is provided with vent holes (203) in a surrounding arrangement; a buffer column (204) is arranged on the circumferential outer wall of the mounting sleeve (2); the buffer column (204) is of a cylindrical structure.
5. The external pressure resistant MPP tube structure of claim 4, wherein: the outer end of the buffer column (204) is of a conical structure; the outer end of the buffer column (204) is inserted and installed in the buffer groove (105); the conical inclined surface at the outer end of the buffer column (204) is in fit contact with the conical inclined surface of the buffer groove (105).
6. The external pressure resistant MPP tube structure of claim 5, wherein: one end provided with a buffer spring (205) is embedded in the middle position of the outer end of the buffer column (204); the other end of the buffer spring (205) is embedded and installed on the outer side wall of the buffer groove (105).
7. The external pressure resistant MPP tube structure of claim 6, wherein: after the external pressure is transmitted to the heat dissipation air bag (102) by the external pressure bag cavity (101), the heat dissipation air bag (102) can be compressed by force to generate air flow; the air flow generated by compression of the heat dissipation air bag (102) enters the inside of the mounting sleeve (2) through the heat dissipation air head (103).
8. The external pressure resistant MPP tube structure of claim 7, wherein: when the pipe body (1) is directly subjected to external pressure, the buffer groove (105) on the pipe body (1) is matched with the outer end of the buffer column (204) to extrude the buffer spring (205); when the buffer column (204) and the buffer groove (105) are matched to extrude the buffer spring (205), the inclined surface of the buffer column (204) can push and extrude the inclined surface of the buffer groove (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320848173.3U CN219874903U (en) | 2023-04-17 | 2023-04-17 | External pressure resistant MPP pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320848173.3U CN219874903U (en) | 2023-04-17 | 2023-04-17 | External pressure resistant MPP pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219874903U true CN219874903U (en) | 2023-10-20 |
Family
ID=88323215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320848173.3U Active CN219874903U (en) | 2023-04-17 | 2023-04-17 | External pressure resistant MPP pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219874903U (en) |
-
2023
- 2023-04-17 CN CN202320848173.3U patent/CN219874903U/en active Active
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