Packaging pipe cable with circular cross section

Abstract

The utility model discloses a circular cross-section packaging pipe cable, which comprises a cable, a protection pipe and a packaging layer which are sequentially arranged from inside to outside, the cross section of the packaging layer is circular, a plurality of stripping grooves are uniformly arranged on the peripheral wall of the packaging layer along the circumferential direction, reinforcing strips matched with the stripping grooves are inserted into the stripping grooves, and the stripping grooves are provided with reinforcing ribs matched with the stripping grooves. Two limiting grooves are symmetrically formed in the two sides of the inner end of the stripping groove, and two limiting protruding strips matched with the two limiting grooves are symmetrically arranged at the end, close to the interior of the stripping groove, of the reinforcing strip. And a color identification belt is arranged between the inner wall of the part, not provided with the stripping groove, of the packaging layer and the outer wall of the protective tube. According to the utility model, the convenience of the stripping operation of the packaging layer of the packaging pipe cable is effectively improved, and the situation that the inner pipe is damaged in the stripping packaging layer manufacturing process can be avoided; and on the premise of ensuring that the packaging layer is convenient to strip, the normal structural strength of the packaging layer is prevented from being influenced by the stripping groove.

Description

Technical Field

[0001] This utility model relates to the field of oil pipeline and cable technology, and in particular to a circular cross-section encapsulated pipeline and cable. Background Technology

[0002] Encased cables are commonly used in the oil extraction industry. These cables mainly consist of an outer encasing layer and an inner protective tube. They are used to protect the connection lines between underground mines and the surface. When using encased cables, the outer encasing layer needs to be peeled off at the ends for connection. Due to the hardness and density of the encasing material, peeling off the encasing layer is quite difficult. Currently, the outer encasing layer is mainly peeled off by cutting with a blade or adding tear cords inside the encasing layer. Firstly, cutting with a blade is cumbersome, time-consuming, and labor-intensive. Secondly, cutting with a blade may scratch the inner tube, causing damage. Utility Model Content

[0003] The purpose of this invention is to provide a circular cross-section encapsulated cable to solve the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a circular cross-section encapsulated cable, comprising a cable, a protective tube, and an encapsulation layer arranged sequentially from the inside out. The encapsulation layer has a circular cross-section, and multiple stripping grooves are evenly formed along the circumferential direction on the outer peripheral wall of the encapsulation layer. A reinforcing strip that matches the stripping groove is inserted into each stripping groove. Two limiting grooves are symmetrically formed on both sides of the inner end of the stripping groove. Two limiting protrusions that match the two limiting grooves are symmetrically formed on one end of the reinforcing strip near the inside of the stripping groove.

[0006] Furthermore, the number of the plurality of stripping grooves is three.

[0007] Furthermore, a color identification strip is provided between the inner wall of the portion of the encapsulation layer without a peeling groove and the outer wall of the protective tube.

[0008] Furthermore, at one end of the reinforcing strip near the inside of the peeling groove, two deformable grooves are symmetrically formed near the limiting protrusion.

[0009] Furthermore, the reinforcing strip has a sealing strip with a width greater than the width of the peeling groove at one end near the outer wall of the encapsulation layer.

[0010] Furthermore, the outer wall of the encapsulation layer has evenly spaced limiting holes on both sides of each of the peeling grooves, and the inner wall of the sealing strip is symmetrically provided with two sets of limiting heads that are adapted to each of the limiting holes.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0012] This invention features uniformly spaced peeling grooves on the outer periphery of the encapsulation layer of the packaged cable. This facilitates the positioning of the nutcracker jaws when peeling the encapsulation layer using nutcrackers. During peeling, simply apply inward force with the nutcracker jaws to cut the weak points of the encapsulation at the peeling grooves, causing the encapsulation layer between two adjacent peeling grooves to lift up in a strip. The packaged cable can then be peeled off by dragging the encapsulation strip along the pipeline axis. This effectively improves the convenience of peeling the encapsulation layer of the packaged cable and avoids damage to the inner tube during the peeling process.

[0013] In addition, by setting a matching and detachable reinforcing strip inside each peeling groove, this utility model effectively improves the structural strength of the grooved part of the encapsulation layer while ensuring that the encapsulation layer is easy to peel off, and avoids affecting the normal protective performance of the encapsulation layer due to the opening of peeling grooves. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0017] Explanation of reference numerals in the attached diagram: 1. Cable; 2. Protective tube; 3. Encapsulation layer; 4. Peeling groove; 5. Color identification strip; 6. Reinforcing strip; 7. Limiting groove; 8. Limiting protrusion; 9. Deformation notch; 10. Sealing strip; 11. Limiting hole; 12. Limiting head. Detailed Implementation

[0018] like Figures 1-2 As shown, a circular cross-section encapsulated cable includes a cable 1, a protective tube 2, and an encapsulation layer 3 arranged sequentially from the inside out. The encapsulation layer 3 has a circular cross-section. The circular cross-section encapsulated cable of this utility model is suitable for encapsulated pipelines covered by encapsulation layers of thermoplastic materials such as polyvinylidene fluoride (PVDF), polypropylene (PP), polyamide (PA), thermoplastic elastomer (TPE, TPU, TPR), thermoplastic vulcanizate (TPV), ethylene-tetrafluoroethylene copolymer (ETFE), perfluoroethylene propylene (FEP), ethylene trifluorochloroethylene copolymer (ECTFE), and polytetrafluoroethylene (PFA).

[0019] The outer peripheral wall of the encapsulation layer 3 is provided with a plurality of peeling grooves 4 evenly distributed along the circumference. Specifically, there are three peeling grooves 4, that is, the interval between each peeling groove is 120°.

[0020] With the above settings, when peeling off the encapsulated cable, the adjacent peeling grooves make it easier to position the nutcracker jaws. The nutcracker jaws act on the two adjacent peeling grooves and forcefully cut the weak points of the encapsulation layer in the groove. This will cause the encapsulation between the two peeling grooves to lift up in a strip. At this time, the encapsulation layer can be gradually peeled off by dragging it along the pipeline axis.

[0021] To ensure the thickness of the encapsulation layer, the inner end face of the peeling groove 4 is arc-shaped, while the two side walls are flat. The bottom of the groove is arc-shaped instead of flat, which ensures that the encapsulation thickness is consistent at all points on the bottom of the groove. This also ensures uniform stress at the bottom of the groove, reducing the risk of stress concentration causing cracking of the encapsulation layer. Compared with V-shaped or U-shaped grooves, the square groove has a curved bottom surface, which can be used with nutcrackers of different sizes.

[0022] A color identification band 5 is provided between the inner wall of the portion of the encapsulation layer 3 where the peeling groove 4 is not provided and the outer wall of the protective tube 2. The color identification band 5 can be used to identify the inner tube of the encapsulation.

[0023] As a further improvement to this utility model, each of the peeling grooves 4 is fitted with a matching reinforcing strip 6. By setting the reinforcing strip 6, the structural strength of the slotted portion of the encapsulation layer 3 can be effectively guaranteed. In addition, two limiting grooves 7 are symmetrically formed on both sides of the inner end of the peeling groove 4, and two limiting protrusions 8 are symmetrically arranged on one end of the reinforcing strip near the inside of the peeling groove 7, respectively matching the two limiting grooves 7. By the cooperation between the limiting protrusions on the reinforcing strip and the limiting grooves inside the peeling groove, the connection stability of the reinforcing strip on the peeling groove can be guaranteed.

[0024] In addition, two deformable grooves 9 are symmetrically formed at one end of the reinforcing strip 6 near the inside of the peeling groove 4, respectively, near the limiting protrusion 8.

[0025] The reinforcing strip 6 is provided with a sealing strip 10 with a width greater than that of the peeling groove 4 at one end near the outer wall of the encapsulation layer 3. Limiting holes 11 are evenly spaced on both sides of each peeling groove 4 on the outer wall of the encapsulation layer 3. Two sets of limiting heads 12 are symmetrically arranged on the inner wall of the sealing strip 10, which are adapted to each of the limiting holes 11. By having each limiting head 12 on the sealing strip 10 cooperate with each limiting hole on the encapsulation layer 3, the reinforcing strip can be prevented from shifting in position in the radial direction of the cable.

[0026] In this embodiment, when peeling off the encapsulation layer on the cable, the encapsulation layer can be clamped outward with pliers. When the reinforcing strip on the encapsulation layer is pulled outward, due to the presence of the deformation notch, the encapsulation layer will relatively squeeze the two limiting protrusions and gradually detach from the corresponding limiting grooves, thereby pulling the end of the encapsulation strip radially away from the peeling groove of the encapsulation layer. Then, nutcracker jaws are used to clamp the two adjacent peeling grooves and apply inward force. Due to the presence of the limiting grooves, it is easier for the nutcracker jaws to cut the encapsulation layer.

[0027] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A circular cross-section encapsulated cable, characterized in that: The device includes a cable, a protective tube, and an encapsulation layer arranged sequentially from the inside out. The encapsulation layer has a circular cross-section. Multiple peeling grooves are evenly distributed along the circumferential direction on the outer peripheral wall of the encapsulation layer. A reinforcing strip that matches the peeling groove is inserted into each peeling groove. Two limiting grooves are symmetrically formed on both sides of the inner end of the peeling groove. Two limiting protrusions that match the two limiting grooves are symmetrically arranged on one end of the reinforcing strip near the inside of the peeling groove.

2. The circular cross-section encapsulated cable according to claim 1, characterized in that: The number of the plurality of stripping grooves is three.

3. The circular cross-section encapsulated cable according to claim 2, characterized in that: A color identification strip is provided between the inner wall of the portion of the encapsulation layer without a peeling groove and the outer wall of the protective tube.

4. The circular cross-section encapsulated cable according to claim 1, characterized in that: Two deformable grooves are symmetrically formed at one end of the reinforcing strip near the inside of the peeling groove, respectively, near the position of the limiting protrusion.

5. The circular cross-section encapsulated cable according to claim 1, characterized in that: The reinforcing strip has a sealing strip with a width greater than the width of the peeling groove at one end near the outer wall of the encapsulation layer.

6. The circular cross-section encapsulated cable according to claim 5, characterized in that: The outer wall of the encapsulation layer has locating holes evenly spaced on both sides of each of the peeling grooves, and the inner wall of the sealing strip is symmetrically provided with two sets of locating heads that are adapted to each of the locating holes.

Images