CN218897037U

CN218897037U - External pressure resistant MPP power cable protection tube

Info

Publication number: CN218897037U
Application number: CN202222803959.1U
Authority: CN
Inventors: 魏仲明; 金金; 刘若晰; 王保响; 伏聪轩
Original assignee: Lianyungang Dingxin Power Equipment Co ltd
Current assignee: Lianyungang Dingxin Power Equipment Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-04-21
Anticipated expiration: 2032-10-24

Abstract

The utility model discloses an external pressure resistant MPP power cable protection tube, which is applied to the technical field of power cable protection devices, wherein when the cable tube is subjected to pressure of an external environment, the pressure resistant mechanism is firstly deformed, then external force is greatly reduced, an elastic material can be added in a buffer groove through the buffer groove, the effect of increasing the pressure resistant effect is achieved, the pressure resistant mechanism can be firmly and firmly fixed on the outer wall of the cable tube through the fixing component, the stability is improved, and the pressure resistant mechanism and the fixing component cannot be separated from the cable tube through the limiting component, so that the pressure resistant mechanism and the fixing mechanism are fixed.

Description

External pressure resistant MPP power cable protection tube

Technical Field

The utility model belongs to the technical field of power cable protection devices, and particularly relates to an external pressure resistant MPP power cable protection tube.

Background

The MPP pipe is also called MPP power cable protection pipe, adopts modified polypropylene as main raw material, has the characteristic of high temperature resistance, and is suitable for medium and low voltage transmission line cable calandria pipe under 10 KV.

The current announcements are: the utility model discloses a novel high temperature resistant and external pressure resistant MPP power cable protection tube, which comprises an outer tube, a protection tube and a reinforcing support, and overcomes the defects of the prior art.

The existing external pressure resistant MPP power cable protection tube has the following problems: when the MPP pipe is used, the MPP pipe is buried into the ground, and when the ground is extruded, the MPP pipe is likely to be subjected to external pressure, so that the pipe body of the MPP pipe is broken, and therefore, the MPP power cable protection pipe resistant to external pressure is required to protect the MPP pipe.

Disclosure of Invention

The utility model aims to provide an external pressure resistant MPP power cable protection tube, which has the advantage of external pressure resistance.

The technical aim of the utility model is achieved by the following technical scheme that the external pressure resistant MPP power cable protection tube comprises a cable tube, wherein a pressure resistant mechanism is arranged outside the cable tube, a buffer groove is formed between the cable tube and the pressure resistant mechanism in a surrounding mode, one end of the pressure resistant mechanism is provided with a fixing assembly, both ends of the pressure resistant mechanism are provided with limiting assemblies, and the fixing assembly and the limiting assemblies are matched with the pressure resistant mechanism.

By adopting the technical scheme, when the cable tube receives the pressure of external environment through setting up withstand voltage mechanism, withstand voltage mechanism can produce deformation at first, will make outside external force by the great reduction afterwards, through setting up the dashpot, can increase elastic material in the inside of dashpot, play the effect of increasing the resistance to compression effect, through setting up fixed subassembly, can make withstand voltage mechanism firmly fix on the outer wall of cable tube, play the effect of increasing stability, through setting up spacing subassembly, can make withstand voltage mechanism and fixed subassembly can not break away from the cable tube, play the effect of fixed withstand voltage mechanism and fixed mechanism.

The utility model is further provided with: the pressure-resistant mechanism comprises a surrounding ring, a cavity, an exhaust groove and a spring, wherein the surrounding ring is movably connected to the outside of the buffer groove, the cavity is formed in the surrounding ring, the exhaust groove is formed in the inner top wall of the cavity, one end of the spring is welded to the inner bottom wall of the cavity, the exhaust groove is communicated with the outside of the surrounding ring, the other end of the spring is welded to the inner top wall of the cavity, and the surrounding ring is made of elastic materials.

By adopting the technical scheme, through setting up enclosing ring, cavity, exhaust groove and spring, when the enclosing ring received external pressure, the enclosing ring can produce deformation, then subsides to the inside of cavity, then the spring shrink, and the inside gas of cavity will be discharged slowly through the exhaust groove this moment, can buffer the pressure of part this moment.

The utility model is further provided with: the fixed subassembly includes T type groove, T template and connecting plate, the T type groove is seted up in the both ends of surrounding ring, T template swing joint in the inside of T type groove, the connecting plate welds in the one end of T template.

By adopting the technical scheme, through setting up T type groove, T template and connecting plate, when the surrounding ring encirclement is in the outside of cable pipe, through the cooperation in T template, connecting plate and T type groove use, can make the surrounding ring can not break away from the cable pipe.

The utility model is further provided with: the limiting assembly comprises an arc-shaped groove, a thread groove, an arc-shaped plate and bolts, wherein the arc-shaped groove is formed in two side walls of the surrounding ring, the thread groove is formed in one side wall of the arc-shaped groove, the arc-shaped plate is movably connected to the inside of the arc-shaped groove, the bolts are in threaded connection to the inside of the arc-shaped plate, and the bolts are matched with the thread groove for use.

By adopting the technical scheme, through setting up arc wall, thread groove, arc and bolt, when T template inserts the inside in T type groove, through arranging the arc in the inside in arc wall, screw the inside in thread groove with the bolt afterwards, played the effect that prevents that T template from breaking away from T template.

The utility model is further provided with: the inside of buffer tank is provided with the elastic cushion, the spacing groove has been seted up on the lateral wall of elastic cushion, the welding has the limiting plate on the outer lateral wall of cable duct, the both sides wall of elastic cushion bond with a lateral wall of enclosing ring and a lateral wall of cable duct respectively.

By adopting the technical scheme, through setting up elastic cushion, spacing groove and limiting plate, can make the elastic cushion arrange in the inside of buffering groove, when the surrounding ring receives external force, the elastic cushion can go on buffering to external force once.

The utility model is further provided with: the inside of the exhaust groove is welded with a filter screen for preventing sundries such as dust and the like from entering the inside of the cavity.

By adopting the technical scheme, when the surrounding ring is reset under the action of the elastic force of the spring through the filter screen, external gas can enter the cavity through the exhaust groove, so that the effect of preventing dust or sundries from entering the cavity is achieved.

In summary, the utility model has the following beneficial effects:

through setting up withstand voltage mechanism, when can making the cable pipe receive external environment's pressure, withstand voltage mechanism can produce deformation at first, will make outside external force by the great reduction then, through setting up the dashpot, can increase elastic material in the inside of dashpot, the effect of increasing the resistance to compression effect has been played, through setting up fixed subassembly, can make withstand voltage mechanism firmly fix on the outer wall of cable pipe, the effect of increasing stability has been played, through setting up spacing subassembly, can make withstand voltage mechanism and fixed subassembly can not break away from the cable pipe, the effect of fixed withstand voltage mechanism and fixed establishment has been played.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a left side view of the present utility model;

FIG. 3 isbase:Sub>A perspective cross-sectional view of the utility model at A-A in FIG. 2;

FIG. 4 is an enlarged view of the utility model at A in FIG. 3;

fig. 5 is a schematic structural view of a limiting assembly in the present utility model.

In the figure, 1, a cable tube; 2. a pressure-resistant mechanism; 3. a buffer tank; 4. a fixing assembly; 5. a limit component; 6. an elastic pad; 7. a limit groove; 8. a limiting plate; 9. a filter screen; 21. an encircling ring; 22. a cavity; 23. an exhaust groove; 24. a spring; 41. a T-shaped groove; 42. t-shaped plates; 43. a connecting plate; 51. an arc-shaped groove; 52. a thread groove; 53. an arc-shaped plate; 54. and (5) a bolt.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Examples:

referring to fig. 1-5, the present utility model provides the following technical solutions: the utility model provides an external pressure resistant MPP power cable protection tube, including cable pipe 1, the outside of cable pipe 1 is provided with withstand voltage mechanism 2, enclose into buffer tank 3 between cable pipe 1 and the withstand voltage mechanism 2, withstand voltage mechanism 2's one end is provided with fixed subassembly 4, withstand voltage mechanism 2's both ends all are provided with spacing subassembly 5, fixed subassembly 4 and spacing subassembly 5 all use with withstand voltage mechanism 2 cooperation, when can make cable pipe 1 receive the pressure of external environment through setting up withstand voltage mechanism 2, withstand voltage mechanism 2 can produce deformation at first, will make external force cut down greatly afterwards, can increase the elastic material in buffer tank 3 through setting up buffer tank 3, the effect of increasing the resistance to compression effect has been played, through setting up fixed subassembly 4, can make withstand voltage mechanism 2 firmly fix on cable pipe 1's outer wall, the effect of increasing stability has been played, through setting up spacing subassembly 5, can make withstand voltage mechanism 2 and fixed subassembly 4 can not break away from cable pipe 1, the effect of withstand voltage mechanism 2 and fixed mechanism has been played.

Referring to fig. 4, the pressure-resistant mechanism 2 includes a surrounding ring 21, a cavity 22, a vent groove 23 and a spring 24, the surrounding ring 21 is movably connected to the outside of the buffer groove 3, the cavity 22 is opened in the inside of the surrounding ring 21, the vent groove 23 is opened in the inner top wall of the cavity 22, one end of the spring 24 is welded to the inner bottom wall of the cavity 22, the vent groove 23 is communicated with the outside of the surrounding ring 21, the other end of the spring 24 is welded to the inner top wall of the cavity 22, the surrounding ring 21 is made of an elastic material, and by arranging the surrounding ring 21, the cavity 22, the vent groove 23 and the spring 24, when the surrounding ring 21 receives external pressure, the surrounding ring 21 deforms, then collapses to the inside of the cavity 22, then the spring 24 contracts, at this time, gas in the cavity 22 is slowly discharged through the vent groove 23, at this time, part of the pressure can be buffered.

Referring to fig. 3, the fixing assembly 4 includes a T-shaped groove 41, a T-shaped plate 42 and a connection plate 43, the T-shaped groove 41 is formed at both ends of the surrounding ring 21, the T-shaped plate 42 is movably connected to the inside of the T-shaped groove 41, the connection plate 43 is welded to one end of the T-shaped plate 42, and by providing the T-shaped groove 41, the T-shaped plate 42 and the connection plate 43, when the surrounding ring 21 surrounds the outside of the cable tube 1, the surrounding ring 21 is prevented from being separated from the cable tube 1 by the cooperation of the T-shaped plate 42, the connection plate 43 and the T-shaped groove 41.

Referring to fig. 5, the limiting component 5 includes an arc groove 51, a thread groove 52, an arc plate 53 and a bolt 54, the arc groove 51 is formed on two side walls of the surrounding ring 21, the thread groove 52 is formed on one side wall of the arc groove 51, the arc plate 53 is movably connected to the inside of the arc groove 51, the bolt 54 is in threaded connection with the inside of the arc plate 53, the bolt 54 is matched with the thread groove 52 for use, and when the T-shaped plate 42 is inserted into the T-shaped groove 41, the arc plate 53 is arranged in the arc groove 51, and then the bolt 54 is screwed into the inside of the thread groove 52, so that the T-shaped plate 42 is prevented from being separated from the T-shaped plate 42.

Referring to fig. 3, the inside of the buffer tank 3 is provided with an elastic pad 6, a side wall of the elastic pad 6 is provided with a limit groove 7, a side wall of the cable tube 1 is welded with a limit plate 8, two side walls of the elastic pad 6 are respectively adhered to a side wall of the surrounding ring 21 and a side wall of the cable tube 1, the elastic pad 6 is arranged in the buffer tank 3 by arranging the elastic pad 6, the limit groove 7 and the limit plate 8, and when the surrounding ring 21 receives an external force, the elastic pad 6 can buffer the external force once.

Referring to fig. 4, the filter screen 9 for preventing foreign matters such as dust from entering the cavity 22 is welded to the inside of the air discharge groove 23, and when the surrounding ring 21 is reset by the elastic force of the spring 24 by providing the filter screen 9, the external air enters the cavity 22 through the air discharge groove 23, thereby preventing the dust or the foreign matters from entering the cavity 22.

The use process is briefly described: when the cable tube is used, the elastic pad 6 is adhered to the outer wall of the cable tube 1, the limiting plate 8 and the limiting groove 7 are matched, the elastic pad 6 cannot fall off, the surrounding ring 21 is enclosed on the outer wall of the elastic pad 6, the connecting plate 43 and the T-shaped plate 42 are inserted into the T-shaped groove 41, the surrounding ring 21 cannot fall off, the arc plate 53 is arranged in the arc groove 51, the bolt 54 is screwed into the thread groove 52, the connecting plate 43 cannot be separated from the outer portion of the surrounding ring 21, when the surrounding ring 21 is extruded by external force, the surrounding ring 21 is deformed, the space in the cavity 22 is reduced, then the spring 24 is contracted, gas is discharged through the exhaust groove 23, the elastic pad 6 can play a certain buffering role on the external pressure, and the pressure applied to the cable tube 1 is greatly reduced under the double buffering effect.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims

1. The utility model provides an external pressure resistant MPP power cable protection tube, includes cable pipe (1), its characterized in that: the cable tube is characterized in that a pressure-resistant mechanism (2) is arranged outside the cable tube (1), a buffer groove (3) is formed between the cable tube (1) and the pressure-resistant mechanism (2), one end of the pressure-resistant mechanism (2) is provided with a fixing component (4), two ends of the pressure-resistant mechanism (2) are provided with limiting components (5), and the fixing component (4) and the limiting components (5) are matched with the pressure-resistant mechanism (2).

2. The external pressure resistant MPP power cable protection tube of claim 1, wherein: the pressure-resistant mechanism (2) comprises a surrounding ring (21), a cavity (22), an exhaust groove (23) and a spring (24), wherein the surrounding ring (21) is movably connected to the outside of the buffer groove (3), the cavity (22) is formed in the surrounding ring (21), the exhaust groove (23) is formed in the inner top wall of the cavity (22), one end of the spring (24) is welded to the inner bottom wall of the cavity (22), the exhaust groove (23) is communicated with the outside of the surrounding ring (21), the other end of the spring (24) is welded to the inner top wall of the cavity (22), and the surrounding ring (21) is made of elastic materials.

3. The external pressure resistant MPP power cable protection tube of claim 1, wherein: the fixing assembly (4) comprises a T-shaped groove (41), a T-shaped plate (42) and a connecting plate (43), wherein the T-shaped groove (41) is formed in two ends of the surrounding ring (21), the T-shaped plate (42) is movably connected to the inside of the T-shaped groove (41), and the connecting plate (43) is welded to one end of the T-shaped plate (42).

4. The external pressure resistant MPP power cable protection tube of claim 1, wherein: spacing subassembly (5) include arc wall (51), screw thread groove (52), arc (53) and bolt (54), arc wall (51) are seted up in the both sides wall of enclosing ring (21), screw thread groove (52) are seted up in one side wall of arc wall (51), arc (53) swing joint in the inside of arc wall (51), bolt (54) threaded connection in the inside of arc (53), bolt (54) and screw thread groove (52) cooperation are used.

5. The external pressure resistant MPP power cable protection tube of claim 1, wherein: the inside of buffer tank (3) is provided with elastic pad (6), limit groove (7) have been seted up on one lateral wall of elastic pad (6), welding has limiting plate (8) on the outer lateral wall of cable pipe (1), both sides wall of elastic pad (6) bond with one lateral wall of enclosing ring (21) and one lateral wall of cable pipe (1) respectively.

6. The external pressure resistant MPP power cable protection tube of claim 2, wherein: a filter screen (9) for preventing sundries from entering the cavity (22) is welded in the exhaust groove (23).