Flexible fireproof cable

Abstract

The utility model discloses a flexible fireproof cable which comprises an outer insulation sleeve, an armor layer is pressed on the inner side of the outer insulation sleeve, an inner insulation sleeve is pressed on the inner side of the armor layer, partition plates are compounded on the inner side of the inner insulation sleeve from top to bottom, cable inner layers are compounded on the inner sides of the partition plates, and cable outer layers are compounded on the inner sides of the cable inner layers. A cable core is pressed on the inner side of the cable inner layer, and through holes are formed in the circumference of the outer wall of the cable inner layer from top to bottom. According to the flexible fireproof cable, the split type design is adopted, the insulating oil is divided into a plurality of independent individuals, in actual use, the situation that the insulating oil is wasted is avoided, it is guaranteed that other normal parts of the cable are not affected by the insulating oil except short-circuit fire, and in the use process, although the cable has a damaged part, the cable can be prevented from being damaged. The whole structure cannot be damaged, maintenance is convenient, use is flexible, practicability is high, and the use requirement on the existing market is met.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof cables, in particular to a flexible fireproof cable. Background Art

[0002] A cable is an electrical energy or signal transmission device, usually composed of several or several groups of wires. For example, the utility model with patent number: 202321571413.6 includes an insulating sleeve body, a sponge pad tube is arranged between the inner walls of the insulating sleeve body, and an oil storage chamber is opened inside the insulating sleeve body. Although the device can flame retard the part of the cable that is short-circuited and ignited, due to the integrated design of the oil storage chamber, when a short circuit and fire occurs in a certain part of the cable, the insulating oil in the oil storage chamber will flow to the wire core along the opened through hole, which not only easily causes waste of insulating oil and affects the use of cables in other normal parts, but also when the short-circuit position is to be maintained in the later stage or the outer wall of the cable is damaged during daily use, the overall structure is damaged, resulting in maintenance being very difficult, which brings a lot of troubles to people. Therefore, based on the above shortcomings, a flexible fire-proof cable is now introduced to improve this. Utility Model Content

[0003] The purpose of the utility model is to provide a flexible fireproof cable to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible fireproof cable, comprising an outer insulating sleeve, an armor layer is pressed onto the inner side of the outer insulating sleeve, an inner insulating sleeve is pressed onto the inner side of the armor layer, a partition is compounded on the inner side of the inner insulating sleeve from top to bottom, a cable inner layer is compounded on the inner side of the partition, a cable core is pressed onto the inner side of the cable inner layer, through holes are opened on the circumference of the outer wall of the cable inner layer from top to bottom, a thermosensitive sealing gasket is compounded on the circumference of the outer wall of the cable inner layer from top to bottom, and insulating oil is filled on the inner side of the inner insulating sleeve and the inner side of the cable inner layer.

[0005] Preferably, there are several partitions, and the distance between every two adjacent partitions is 50 cm.

[0006] Preferably, the number of the through holes is several, and the distance between every two adjacent through holes is 5 cm.

[0007] Preferably, the through hole and the heat-sensitive sealing gasket match each other and have corresponding positions.

[0008] Preferably, a marking strip is provided on the outer wall of the outer insulating sleeve, and the marking strip is arranged at a position corresponding to the partition.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the flexible fireproof cable can increase the overall strength through the armor layer, thereby avoiding cable damage and preventing leakage of insulating oil; the space for storing insulating oil can be equally divided into multiple spaces through the partition, so that each space is an independent individual and does not affect each other; the through hole can be effectively sealed at room temperature through the thermosensitive sealing gasket to prevent leakage of insulating oil; when the temperature rises to a certain level, its material properties will change, causing its sealing performance to weaken or disappear, so that the through hole can be easily opened; the device adopts a split design to separate the insulating oil into multiple independent individuals; in actual use, it not only avoids the waste of insulating oil, but also ensures that the normal parts of the cable other than short-circuit fire will not be affected by the insulating oil; and during use, although the cable has damaged parts, it will not damage the overall structure, which is easy to maintain, flexible to use, and highly practical, meeting the use needs in the existing market. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the insulating oil structure of the utility model.

[0012] In the figure: 1. outer insulating sleeve, 2. armor layer, 3. inner insulating sleeve, 4. partition, 5. cable inner layer, 6. cable core, 7. through hole, 8. thermal sealing gasket, 9. insulating oil. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figure 1-2The utility model provides a technical solution: a flexible fireproof cable, comprising an outer insulating sleeve 1, an armor layer 2 is pressed on the inner side of the outer insulating sleeve 1, an inner insulating sleeve 3 is pressed on the inner side of the armor layer 2, a partition 4 is compounded on the inner side of the inner insulating sleeve 3 from top to bottom, a cable inner layer 5 is compounded on the inner side of the partition 4, a cable core 6 is pressed on the inner side of the cable inner layer 5, through holes 7 are opened on the outer wall circumference of the cable inner layer 5 from top to bottom, a thermosensitive sealing gasket 8 is compounded on the outer wall circumference of the cable inner layer 5 from top to bottom, the inner side of the inner insulating sleeve 3 and the cable inner layer 5 are filled with insulating oil 9, the thermosensitive sealing gasket 8 can effectively cover the through hole 7 at room temperature to prevent the insulating oil 9 from leaking, and when the temperature rises to a certain level, the material properties will change, resulting in the weakening or disappearance of its sealing performance, so that the through hole 7 can be easily opened.

[0015] As a preferred solution, further, the number of the partitions 4 is several, and the distance between every two adjacent partitions 4 is 50 cm.

[0016] As a preferred solution, further, the number of through holes 7 is several, and the distance between every two adjacent through holes 7 is 5 cm.

[0017] As a preferred solution, further, the through hole 7 and the thermal sealing gasket 8 match each other and their positions correspond to each other. The through hole 7 can be sealed by the thermal sealing gasket 8. Due to the characteristics of the material of the thermal sealing gasket 8 itself, when the cable short-circuit catches fire and the temperature rises, its sealing property is weakened and disappears, so that the insulating oil 9 can flow through the through hole 7 to the location where the cable short-circuit catches fire.

[0018] As a preferred solution, further, a marking strip is provided on the outer wall of the outer insulating sleeve 1, and the marking strip is provided at a position corresponding to the partition 4. Through the marking strip, the staff can clearly check the position of the partition 4 during later maintenance, thereby avoiding affecting the use of cables in other normal parts when maintaining cables in abnormal parts.

[0019] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0020] When in use, the overall strength can be increased by the armor layer 2, which not only avoids the damage to the inside of the cable during transportation, but also prevents the leakage of the insulating oil 9 caused by damage to the outside of the cable during use; when a short circuit occurs in the cable core 6 and a fire occurs, the temperature of the cable core 6 will increase, and the thermal sealing gasket 8 around the cable core 6 will be affected by the temperature change, and its material properties will change, causing its sealing performance to weaken and disappear. At this time, the insulating oil 9 will flow through the through hole 7 to the cable core 6, thereby cooling and extinguishing the short-circuit fire site; the device adopts a split design to separate the insulating oil 9 into multiple independent individuals. In actual use, it not only avoids the waste of insulating oil 9, but also ensures that the cables in normal parts other than the short circuit fire will not be affected by the insulating oil 9. Moreover, during use, although the cable has damaged parts, it will not destroy the overall structure, which is easy to maintain, flexible to use, and highly practical, meeting the use needs in the existing market.

[0021] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "center position", "other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly specified and limited, the terms "snapping", "plugging", "welding", "installation", "setting", "interference fit", "screw connection", "pin connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible fireproof cable, comprising an outer insulating sheath (1), characterized in that: The inner side of the outer insulating sleeve (1) is pressed with an armor layer (2), the inner side of the armor layer (2) is pressed with an inner insulating sleeve (3), the inner side of the inner insulating sleeve (3) is compounded with a partition (4) from top to bottom, the inner side of the partition (4) is compounded with a cable inner layer (5), the inner side of the cable inner layer (5) is pressed with a cable core (6), the outer wall circumference of the cable inner layer (5) is provided with through holes (7) from top to bottom, the outer wall circumference of the cable inner layer (5) is compounded with a heat-sensitive sealing gasket (8) from top to bottom, and the inner side of the inner insulating sleeve (3) and the inner side of the cable inner layer (5) are filled with insulating oil (9).

2. A flexible fireproof cable according to claim 1, characterized in that: The number of the partitions (4) is several, and the distance between every two adjacent partitions (4) is 50 cm.

3. A flexible fireproof cable according to claim 1, characterized in that: The number of the through holes (7) is several, and the distance between every two adjacent through holes (7) is 5 cm.

4. A flexible fireproof cable according to claim 1, characterized in that: The through hole (7) and the heat-sensitive sealing gasket (8) match each other and their positions correspond to each other.

5. A flexible fireproof cable according to claim 1, characterized in that: A marking strip is provided on the outer wall of the outer insulating sleeve (1), and the marking strip is provided at a position corresponding to the partition plate (4).

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