Oil-resistant cold-resistant flexible cable with diversion joint

Abstract

The invention relates to the technical field of cables, in particular to an oil-resistant cold-resistant flexible cable with diversion joints, which comprises a cable body and end joints mounted at two ends of the cable body. The cable body is composed of a plurality of conductors, insulating layers sleeved outside the conductors, a filling layer filled outside the insulating layers, an inner lining layer wrapped outside the filling layer, a shielding layer sleeved outside the inner lining layer and an outer sheath located on the outermost side. According to the oil-resistant and cold-resistant flexible cable with the diversion joint, the end joint is fixedly mounted at the connecting end, so that connection and assembly are facilitated; by installing the lateral isolation frame in the end connector, all layers of sheaths of the cable connecting end can be inserted and fixed, and the connecting firmness and the sealing performance are improved; and the inner-layer temperature adjusting pipe located at the central position and the outer-layer temperature adjusting pipe located at the gap position of the outer side of the insulating layer are arranged in the filling layer, internal temperature adjustment can be carried out according to needs, and the cold resistance of the cable is improved.

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] Cable refers to an electrical material used for power, communication and related transmission purposes. With the development of society, cables are used more and more widely in industries such as transportation, communication and construction. Depending on the use scenarios of cables, the requirements for the use of cables are getting higher and higher; sometimes there are various oils in the environment, and the cables are easily corroded; sometimes the use of cables in the field will cause damage due to low temperatures, which will affect the service life of the cables.

[0003] Current flexible cables cannot accurately 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 use 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 is composed 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 a center position inside the filling layer, an outer temperature-regulating tube is arranged at a gap position outside the insulating layer, and an electrically controlled internal flow-guiding mechanism is installed inside the end joint at positions corresponding to the inner temperature-regulating tube and the outer temperature-regulating tube.

[0006] The end joint has lateral isolating frames fixedly mounted at the openings on both sides thereof, which are matched with the inner lining layer, the shielding layer and the outer sheath.

[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 lateral magnetic control adjustment block is provided on the inner wall of the central guide box. The lateral 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] An embedded temperature sensor controller is fixedly installed on the surface of the closed guide plate.

[0010] External material guide nozzles are axially fixed on the outer ends of the inner connecting pipe and the outer connecting pipe.

[0011] The outer side of the end joint is threadedly assembled with a lateral locking bolt which is connected to the inside of the lateral isolation frame.

[0012] The outer connecting pipe is fixedly connected to the inner connecting pipe through a central flow guide box, and the outer connecting pipe is arranged in a ring array outside the inner connecting pipe.

[0013] The inner arc surface of the lateral isolation frame is located at the opening position and has an annular limiting frame with an integral structure.

[0014] An electric heating frame is fixedly mounted inside the end joint, located on the inner connecting pipe and outside the outer connecting pipe.

[0015] The beneficial effects of the present invention are: (1) The oil-resistant and cold-resistant flexible cable with a flow-guiding joint of the present invention has an end joint fixedly installed at the connection end, which is convenient for connection and assembly; (2) By installing a lateral isolation frame inside the end connector, the layers of sheaths at the cable connection end can be inserted and fixed to improve the connection firmness and sealing; (3) An inner temperature-regulating tube located at the center of the filling layer and an outer temperature-regulating tube located at the gap outside the insulation layer are arranged inside the filling layer, so that the internal temperature can be adjusted as needed to improve the cold resistance of the cable; (4) The temperature control mechanism is installed inside the end connector without affecting the internal space of the cable, thus improving the rationality of the structural layout; (5) By installing an electrically controlled internal flow guide mechanism at the corresponding positions of the inner temperature regulating tube and the outer temperature regulating tube inside the end joint, not only can the temperature be adjusted, but the temperature can also be automatically adjusted according to the actual cable temperature, which greatly improves the degree of intelligence; (6) Internal circulation can be performed as needed, and temperature adjustment can be enhanced according to the temperature at different locations to ensure temperature consistency of the entire cable and extend the service life of the cable; (7) By adopting a multi-layer protection design of inner lining layer, shielding layer and outer sheath, the oil resistance and corrosion resistance of the cable can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2It is a cross-sectional view of the cable body in the present invention.

[0019] Figure 3 It is a schematic diagram of the internal structure of the end joint in the present invention.

[0020] Figure 4 It is a schematic diagram of the internal structure of the electrically controlled internal flow guiding mechanism in the idle state of the present invention.

[0021] Figure 5 It is a schematic diagram of the internal structure of the electrically controlled internal flow guiding mechanism in the working temperature adjustment state of the present invention. DETAILED DESCRIPTION

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An oil-resistant and cold-resistant flexible cable with a flow-guiding joint is shown, comprising 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, an outer temperature-regulating tube 9 is arranged at the gap position outside the insulating layer 3, and 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.

[0025] The materials of the insulating 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 a power unit control unit.

[0026] 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.

[0027] The inner isolation frame 11 adopts a detachable structural design, and the inner isolation frame 11 is fixed and assembled by assembly screws on the outer side of the end connector 1, so as to adapt to different cables.

[0028] 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.

[0029] 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 central 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 between the inner electromagnet 106 and the inner control block 107.

[0030] 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 .

[0031] Working principle: multiple cable segments are connected through the 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 in 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, and the closed guide plate The flow plate 104 is turned over 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, and the closed guide plate 104 inside the central guide box 103 is also turned over 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.

[0032] 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.

[0033] In order to cooperate with fixed communication, external material guide nozzles 13 are axially fixed to the outer ends of the inner connecting pipe 101 and the outer connecting pipe 102 .

[0034] The inner connecting pipe 101 is inserted into the inner thermostatic pipe 8 through the external material guide nozzle 13 and is fixedly connected with the inner thermostatic pipe 8, and the outer connecting pipe 102 is inserted into the outer thermostatic pipe 9 through the external material guide nozzle 13 and is fixedly connected with the outer thermostatic pipe 9. At the same time, the assembly stability of the inner side of the cable is increased.

[0035] In order to cooperate with bolt fixing, the outer side of the end joint 1 is threadedly equipped with a lateral locking bolt 14 connected to the inside of the lateral isolation frame 11.

[0036] 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 firmness.

[0037] In order to coordinate the connection and improve the uniformity of installation, the outer connecting pipe 102 is fixedly connected with 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.

[0038] In order to improve the assembly firmness and sealing performance, the inner arc surface of the lateral isolation frame 11 is located at the opening position and has an annular limiting frame 15 of an integral structure.

[0039] 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, and the inner diameter of the annular limiting frame 15 gradually decreases from the opening to the inside, which can improve the anti-loosening performance.

[0040] In order to cooperate with the internal temperature control, an electric heating frame 16 is fixedly installed inside the end joint 1 and outside the inner connecting pipe 101 and the outer connecting pipe 102.

[0041] 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.

[0042] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An oil-resistant and cold-resistant flexible cable with a flow-conducting 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 arranged at a central position inside the filling layer (4), an outer temperature regulating tube (9) is arranged 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).

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

3. The oil-resistant and cold-resistant flexible cable with a flow-conducting joint according to claim 1 is characterized in that: 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 the connecting end of the central flow guiding box (103), an internal extrusion block (105) mounted on the inner wall of the central flow guiding box (103), and a side-mounted magnetic control regulating block for controlling the internal extrusion block (104).

4. The oil-resistant and cold-resistant flexible cable with a flow-conducting joint according to claim 3 is 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 internal extrusion block (104), and an iron spring (108) mounted between the inner electromagnet (106) and the inner control block (107).

5. The oil-resistant and cold-resistant flexible cable with a flow-conducting joint according to claim 3 is characterized in that: An embedded temperature sensor controller (12) is fixedly mounted on the surface of the closed guide plate (104).

6. The oil-resistant and cold-resistant flexible cable with a flow-conducting joint according to claim 3 is 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).

7. The oil-resistant and cold-resistant flexible cable with a flow-conducting joint according to claim 2 is characterized in that: The outer side of the end joint (1) is threadedly equipped with a lateral locking bolt (14) which is connected to the inside of the lateral isolation frame (11).

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

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

10. The oil-resistant and cold-resistant flexible cable with a flow-conducting 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).

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