Oil-resistant cold-resistant flexible cable with flow guide joint

Abstract

The present application relates to the technical field of cable, especially to an oil-resistant and cold-resistant flexible cable with a flow guide joint, comprising a cable body and end connectors installed at both ends of the cable body, the cable body is composed of a plurality of conductors, an insulation layer sleeved outside the conductors, a filling layer filled outside the insulation layer, an inner liner layer wrapped outside the filling layer, a shielding layer sleeved outside the inner liner layer and an outer sheath located at the outermost side, the oil-resistant and cold-resistant flexible cable with the flow guide joint is fixedly installed with the end connectors at the connecting ends, facilitating connection and assembly; the insertion and fixation of the layers of sheaths between the cable connecting ends can be carried out through the installation side isolation frame inside the end connector, improving the connection firmness and sealing performance; the inner layer temperature regulating pipe located at the central position inside the filling layer and the outer layer temperature regulating pipe located at the gap position outside the insulation layer can regulate the internal temperature according to the needs, improving the cold resistance of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to an oil-resistant and cold-resistant flexible cable with a flow-guiding joint. Background Art

[0002] Cables are electrical materials used for power, communications, and related transmission applications. With the development of society, cables are becoming increasingly popular and are widely used in industries such as transportation, communications, and construction. However, the requirements for cable use vary depending on the application scenario. Sometimes, the environment is exposed to various oils and fats, which can easily corrode the cables. Sometimes, using cables outdoors due to low temperatures can damage them, shortening their service life.

[0003] Current flexible cables cannot precisely control temperature according to different usage locations, and cannot achieve a balance between cold resistance and oil resistance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the current flexible cables cannot accurately control the temperature according to different usage positions, and the cold resistance and oil resistance cannot be balanced.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an oil-resistant and cold-resistant flexible cable with a flow-guiding joint, comprising a cable body and end joints installed at both ends of the cable body, the cable body consisting of a plurality of conductors, an insulating layer sleeved on the outside of the conductor, a filling layer filled on the outside of the insulating layer, an inner lining layer wrapped on the outside of the filling layer, a shielding layer sleeved on the outside of the inner lining layer and an outer sheath located on the outermost side, an inner temperature-regulating tube is arranged at the center position inside the filling layer, an outer temperature-regulating tube is arranged at the gap position outside the insulating layer, and an electrically controlled internal flow-guiding mechanism is installed at the positions corresponding to the inner temperature-regulating tube and the outer temperature-regulating tube inside the end joint.

[0006] Lateral isolation frames matching the inner lining layer, the shielding layer and the outer sheath are fixedly assembled at the openings on both sides of the end joint.

[0007] The electrically controlled internal flow guide mechanism includes an inner connecting pipe fixed inside the end joint, an outer connecting pipe, a central flow guide box fixed between the inner connecting pipe and the outer connecting pipe, a closed flow guide plate elastically installed at the connecting end of the central flow guide box, an internal extrusion block installed on the inner wall of the central flow guide box, and a side magnetic control adjustment block for controlling the internal extrusion block.

[0008] A lateral assembly groove for installing a side magnetic control adjustment block is provided on the inner wall of the central deflector box. The side magnetic control adjustment block includes an inner electromagnet fixed inside the lateral assembly groove, an inner control block fixed on one side of the internal extrusion block, and an iron spring installed between the inner electromagnet and the inner control block.

[0009] The embedded temperature sensing controller is fixedly installed on the surface of the closing flow guide plate.

[0010] The outer material guiding nozzle is axially fixed to the outer end of the inner and outer communication pipes.

[0011] The lateral locking bolt connected to the inner part of the lateral isolation frame is screw-fitted to the outer part of the end joint.

[0012] The outer communication pipe is fixedly communicated with the inner communication pipe through the middle flow guide box, and the outer communication pipe is arranged in an annular array mode outside the inner communication pipe.

[0013] The inner side of the lateral isolation frame is provided with an annular limiting frame with an integrated structure at the opening position.

[0014] The electric heating frame is fixedly assembled to the inner part of the end joint outside the inner and outer communication pipes.

[0015] The beneficial effects of the present application are:

[0016] (1) The oil-resistant and cold-resistant flexible cable with a flow guide joint of the present application is provided with an end joint fixedly installed at the connection end, which facilitates connection and assembly.

[0017] (2) The lateral isolation frame installed in the inner part of the end joint can be inserted and fixed between the sheaths of the cable connection end, thereby improving the connection firmness and sealing performance.

[0018] (3) The inner layer temperature regulating pipe located at the center position in the filling layer and the outer layer temperature regulating pipe located at the gap position outside the insulation layer can regulate the internal temperature as needed, thereby improving the cold resistance of the cable.

[0019] (4) The temperature control mechanism is installed in the inner part of the end joint, which does not affect the internal space of the cable and improves the rationality of the structure layout.

[0020] (5) The electric control type internal flow guide mechanism is installed in the inner part of the end joint corresponding to the positions of the inner and outer temperature regulating pipes, which not only can regulate the temperature, but also can automatically regulate the temperature according to the actual cable temperature, thereby greatly improving the intelligent degree.

[0021] (6) The internal circulation flow can be performed as needed, the temperature can be enhanced according to the temperature at different positions, the temperature consistency of the entire cable can be ensured, and the service life of the cable can be prolonged.

[0022] (7) The multi-layer protection design of the inner lining layer, the shielding layer and the outer sheath can greatly improve the oil resistance and corrosion resistance of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below in conjunction with the drawings and examples.

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a cross-sectional view of the cable body in the present invention.

[0026] Figure 3 It is a schematic diagram of the internal structure of the end joint in the present invention.

[0027] Figure 4 It is a schematic diagram of the internal structure of the electrically controlled internal flow guide mechanism in the idle state of the present invention.

[0028] Figure 5 It is a schematic diagram of the internal structure of the electrically controlled internal flow guide mechanism in the working temperature adjustment state of the present invention. DETAILED DESCRIPTION

[0029] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The oil-resistant and cold-resistant flexible cable with a flow-guiding joint shown in the figure includes a cable body and end joints 1 installed at both ends of the cable body. The cable body is composed of a plurality of conductors 2, an insulating layer 3 sleeved on the outside of the conductor 2, a filling layer 4 filled on the outside of the insulating layer 3, an inner lining layer 5 wrapped on the outside of the filling layer 4, a shielding layer 6 sleeved on the outside of the inner lining layer 5 and an outer sheath 7 located on the outermost side. An inner temperature-regulating tube 8 is arranged at the center position inside the filling layer 4, and an outer temperature-regulating tube 9 is arranged at the gap position outside the insulating layer 3. An electrically controlled internal flow-guiding mechanism 10 is installed at the positions corresponding to the inner temperature-regulating tube 8 and the outer temperature-regulating tube 9 inside the end joint 1.

[0032] The materials of the insulation layer 3, the inner lining layer 4 and the outer sheath 5 are all polyvinyl chloride. The cable has excellent cold resistance and excellent oil corrosion resistance and can be used as a connecting line for the power unit control unit.

[0033] In order to cooperate with the inner assembly and fixation, lateral isolation frames 11 that match the inner lining layer 5, the shielding layer 6 and the outer sheath 7 are fixedly assembled at the openings on both sides of the end joint 1.

[0034] The inner isolation frame 11 adopts a detachable structural design, and is fixed and assembled by assembly screws on the outer surface of the end connector 1, so as to adapt to different cables.

[0035] In order to cooperate with internal assembly and communication control, the electrically controlled internal flow guide mechanism 10 includes an inner connecting tube 101 fixed inside the end joint 1, an outer connecting tube 102, a central flow guide box 103 fixed between the inner connecting tube 101 and the outer connecting tube 102, a closed flow guide plate 104 elastically installed at the connecting end of the central flow guide box 103, an internal extrusion block 105 installed on the inner wall of the central flow guide box 103 and a side magnetic control adjustment block for controlling the internal extrusion block 105.

[0036] In order to cooperate with lateral assembly and electromagnetic control, a lateral assembly groove for installing a lateral magnetic control adjustment block is opened on the inner wall of the center deflector box 103. The lateral magnetic control adjustment block includes an inner electromagnet 106 fixed inside the lateral assembly groove, an inner control block 107 fixed on one side of the internal extrusion block 105, and an iron spring 108 installed on the inner electromagnet 106 and the inner control block 107.

[0037] In order to monitor the surface temperature in real time and automatically control it, an embedded temperature sensor controller 12 is fixedly installed on the surface of the closed guide plate 104 .

[0038] Working principle: multiple cable segments are fixedly connected through end connectors 1, and then the end connectors 1 at the outermost ends are used to install a driving pump for driving the heating oil inside the inner temperature regulating tube 8; the internal temperature of the cable segment is monitored by the embedded temperature sensor controller 12. When the temperature is lower than the preset minimum temperature, the embedded temperature sensor controller 12 at this position controls the inner electromagnet 106 to start, controls the iron spring 108 to contract, and drives the inner control block 107 to slide inside the lateral assembly groove, thereby controlling the internal extrusion block 105 to squeeze and close the guide plate 104, closing the guide plate. The flow plate 104 is flipped and protruded toward the inner side of the inner temperature-regulating tube 8, and the driving liquid inside the inner temperature-regulating tube 8 is introduced into the central guide box 103, and then introduced into the outer connecting tube 102 through the outer connecting tube 102, and then introduced into the outer temperature-regulating tube 9 along the outer temperature-regulating tube 9, and then guided back to the central guide box 103 in the end joint 1 at the other end of the cable. The closed guide plate 104 inside the central guide box 103 is also flipped and protruded toward the inner side of the inner temperature-regulating tube 8, and guided back to the inner temperature-regulating tube 8 along the central guide box 103, thereby forming a circulating flow channel.

[0039] The turning angle of the closed guide plate at the water inlet end is opposite to the turning angle of the closed guide plate at the water outlet end.

[0040] In order to ensure fixed connection, an external material guide nozzle 13 is axially fixed to the outer ends of the inner connecting pipe 101 and the outer connecting pipe 102 .

[0041] The inner connecting pipe 101 is inserted into the inner temperature regulating pipe 8 through the external material guide nozzle 13 and is fixedly connected with the inner temperature regulating pipe 8. The outer connecting pipe 102 is inserted into the outer temperature regulating pipe 9 through the external material guide nozzle 13 and is fixedly connected with the outer temperature regulating pipe 9. At the same time, the assembly stability of the inner side of the cable is increased.

[0042] In order to cooperate with the bolt fixation, the outer side of the end joint 1 is threadedly assembled with a lateral locking bolt 14 connected to the inside of the lateral isolation frame 11.

[0043] By rotating the lateral locking bolt 14, the outer side of the outer sheath 7 can be locked and fixed, thereby preventing the cable from being separated from the end connector 1 and improving the installation security.

[0044] In order to coordinate the connection and improve the uniformity of installation, the outer connecting pipe 102 is fixedly connected to the inner connecting pipe 101 through the central guide box 103, and the outer connecting pipe 102 is arranged in a circular array outside the inner connecting pipe 101.

[0045] In order to improve assembly firmness and sealing, the inner arc surface of the lateral isolation frame 11 is located at the opening position with an annular limiting frame 15 of an integral structure.

[0046] The annular limiting frame 15 is clamped on the inner side surfaces of the inner lining layer 5, the shielding layer 6 and the outer sheath 7. The inner diameter of the annular limiting frame 15 gradually decreases from the opening to the inside, which can improve the anti-loosening performance.

[0047] In order to cooperate with internal temperature control, an electric heating frame 16 is fixedly installed inside the end joint 1 on the outside of the inner connecting pipe 101 and the outer connecting pipe 102.

[0048] The electric heating frame 16 includes a central heat-conducting copper tube fixed on the outside of the inner connecting tube 101, an external heat-conducting copper tube fixed on the outside of the outer connecting tube 102, an integrated heat-conducting bracket fixed between the central heat-conducting copper tube and the external heat-conducting copper tube, and a spiral heat-conducting tube fixed on the outside of the central heat-conducting copper tube.

[0049] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. An oil-resistant and cold-resistant flexible cable with a flow-guiding joint, comprising a cable body and end joints (1) installed at both ends of the cable body, characterized in that: The cable body comprises a plurality of conductors (2), an insulating layer (3) sleeved on the outside of the conductors (2), a filling layer (4) filled on the outside of the insulating layer (3), an inner lining layer (5) wrapped on the outside of the filling layer (4), a shielding layer (6) sleeved on the outside of the inner lining layer (5), and an outer sheath (7) located on the outermost side, an inner temperature regulating tube (8) is provided at a central position inside the filling layer (4), an outer temperature regulating tube (9) is provided at a gap position outside the insulating layer (3), and an electrically controlled internal flow guiding mechanism (10) is installed inside the end joint (1) at positions corresponding to the inner temperature regulating tube (8) and the outer temperature regulating tube (9); The electrically controlled internal flow guiding mechanism (10) comprises an inner connecting pipe (101) fixed inside the end joint (1), an outer connecting pipe (102), a central flow guiding box (103) fixed between the inner connecting pipe (101) and the outer connecting pipe (102), a closed flow guiding plate (104) elastically mounted on a connecting end of the central flow guiding box (103), an internal extrusion block (105) mounted on an inner wall of the central flow guiding box (103), and a side-mounted magnetic control regulating block for controlling the internal extrusion block (105).

2. The oil-resistant and cold-resistant flexible cable with a flow-guiding joint according to claim 1, characterized in that: A lateral isolation frame (11) is fixedly mounted at the openings on both sides of the end joint (1) and matches the inner lining layer (5), the shielding layer (6) and the outer sheath (7).

3. The oil-resistant and cold-resistant flexible cable with a flow-guiding joint according to claim 1, characterized in that: A lateral assembly groove for mounting a lateral magnetic control adjustment block is provided on the inner wall of the central deflector box (103). The lateral magnetic control adjustment block comprises an inner electromagnet (106) fixed inside the lateral assembly groove, an inner control block (107) fixed on one side of the inner extrusion block (105), and an iron spring (108) mounted between the inner electromagnet (106) and the inner control block (107).

4. The oil-resistant and cold-resistant flexible cable with a flow-guiding joint according to claim 1, characterized in that: An embedded temperature sensor controller (12) is fixedly mounted on the surface of the closed guide plate (104).

5. The oil-resistant and cold-resistant flexible cable with a flow-guiding joint according to claim 1, characterized in that: External material guide nozzles (13) are axially fixed to the outer ends of the inner connecting tube (101) and the outer connecting tube (102).

6. The oil-resistant and cold-resistant flexible cable with a flow-guiding joint according to claim 2, characterized in that: The outer side of the end joint (1) is threadedly assembled with a lateral locking bolt (14) that is in communication with the interior of the lateral isolation frame (11).

7. The oil-resistant and cold-resistant flexible cable with a flow-guiding joint according to claim 1, characterized in that: The outer communicating tube (102) is fixedly connected to the inner communicating tube (101) via a central flow guide box (103), and the outer communicating tube (102) is arranged in a circular array outside the inner communicating tube (101).

8. The oil-resistant and cold-resistant flexible cable with a flow-guiding joint according to claim 2, characterized in that: The inner arc-shaped surface of the lateral isolation frame (11) is located at the opening position and has an annular limiting frame (15) with an integral structure.

9. The oil-resistant and cold-resistant flexible cable with a flow-guiding joint according to claim 1, characterized in that: An electric heating frame (16) is fixedly mounted inside the end joint (1) and outside the inner connecting pipe (101) and the outer connecting pipe (102).

Images