High-temperature-resistant fireproof flexible cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a high-temperature-resistant fireproof flexible cable, which comprises a guide core. The coating layer and the sheath are prepared by a special-shaped extruder, the coating layer is assembled in the guide core driving part during use, the upper end part of the coating layer is of an arc-shaped structure, and the coating layer is used for guiding a heavy object outwards to form unloading force and prevent accumulation at the same time; the buffer pad is located at the bottom of the protective sleeve, and an air cavity and an elastic strip are arranged on the upper portion and the two sides of the protective sleeve respectively and used for buffering and unloading force on downward pressing of the wrapping layer; the steel wire ropes are located in the two sides of the sheath and used for being fixedly connected with the outside to prevent the guide core from being loosened after being impacted by heavy objects. The cable provided by the utility model can maintain normal use performance in a fire disaster, effectively avoids connection looseness caused by impact of heavy objects, and prevents flame continuous baking caused by accumulation of inflammables.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable technical field, especially relates to a high temperature resistant fireproof flexible cable. BACKGROUND

[0002] The high temperature resistant fireproof flexible cable is a special type of cable, which has the properties of high temperature resistance and fire resistance, is suitable for high temperature and flammable environment, can work normally in high temperature environment, will not be damaged or performance decreased due to temperature rise, has excellent flame retardant property, and will not easily burn even if encountering fire source, and helps to prevent the occurrence and spread of fire.

[0003] However, although the fireproof cable can delay the spread of flame when encountering fire, the fire will cause a large number of articles to fall and drop to the cable, which will cause the connection of the cable to be loose, and the initial flame is continuously roasted at a close distance accompanied by the accumulation of articles, which affects the use performance.

[0004] To solve the above problems, the high temperature resistant fireproof flexible cable is provided in the application. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high temperature resistant fireproof flexible cable, which solves the problems in the background technology.

[0006] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0007] The utility model is a high temperature resistant fireproof flexible cable, which comprises a core, a cladding layer and a sheath prepared by a special-shaped extruder, the cladding layer is assembled on the core to drive the inside during use, the upper end part of the cladding layer is an arc structure for guiding the heavy objects outward, forming unloading while preventing accumulation, a buffer pad is located at the bottom of the sheath, and air cavities and elastic strips are arranged above and on both sides respectively for buffering and unloading the cladding layer, and a steel wire rope is located inside both sides of the sheath for fixed connection with the outside to prevent the connection from being loose after the core is impacted by heavy objects.

[0008] Further, the lower end part of the cladding layer wraps the core, and the two sides are provided with protruding plugs which are clamped in the clamping grooves on the inner side of the sheath, and the lower surface of the upper end part of the cladding layer is connected and fixed with the contact surface of the sheath by a hot melting mode, and can also be connected and fixed by a bonding mode during assembly.

[0009] Further, the upper end of the sheath is provided with a side groove, and the lower surfaces of the side groove and the arc structure of the cladding layer are both provided with elastic protrusions which are in contact with each other for buffering external force.

[0010] Further, the bottom of the sheath is provided with a stop table on both sides for positioning the lower end of the cladding layer.

[0011] Further, the elastic strip is internally provided with a hollow groove for providing a deformation space for the elastic strip.

[0012] Further, the lower side of the blocking table and the two sides of the bottom of the sheath are provided with clamping seats, and the elastic strip is clamped through the arc-shaped slot on the inner side so that the buffer pad is fixed.

[0013] Further, the elastic strip is also used to drive the blocking table to reset, so as to form a sustained force-decomposition action.

[0014] The utility model has the following beneficial effects:

[0015] The utility model discloses a combination of the cladding layer, the guide core and the buffer pad can form buffering and guiding when the heavy object falls, so that the heavy object is guided outwards in the first time after contacting the cable, to prevent the heavy object and the burning article from being accumulated on the outside of the cable for a long time to continuously bake, thereby guaranteeing the use stability of the cable.

[0016] The elastic deformation of the air cavity and the elastic strip can effectively release the force of the guide core, so that the structure can maintain stability when bearing external force impact, and then the arc-shaped structure is used to reduce the outward guiding, the steel wire rope is fixedly connected with the outside, so that the cable can still maintain a stable connection state when the heavy object impacts, preventing the connection from loosening and reducing damage.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] Figure 1 It is a schematic diagram of the overall appearance structure of the cable of the utility model;

[0020] Figure 2 It is a schematic diagram of the exploded state structure of the cable of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the cable of the utility model;

[0022] Figure 4 It is a schematic diagram of the local enlarged structure of part A of the utility model;

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] In the figure: 1, lead core; 2, cladding layer; 3, sheath; 4, steel wire rope; 5, plug; 6, clamping groove; 7, buffer pad; 8, side groove; 9, elastic protrusion; 10, blocking table; 11, air cavity; 12, elastic strip; 13, hollow groove; 14, clamping seat. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] In the description of the utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0027] Please refer to Figures 1-4 The utility model discloses a kind of high-temperature-resistant fireproof flexible cables, including lead core 1;

[0028] Cladding layer 2 and sheath 3 are prepared by profile extruder, cladding layer 2 is assembled in lead core 1 in use to drive inside, the upper end portion of cladding layer 2 is arc structure, for guiding heavy object outward, form unloading while preventing accumulation;

[0029] Buffer pad 7 is located at the bottom of sheath 3, air cavity 11 and elastic strip 12 are respectively arranged above and on both sides, for buffering and unloading to the lower pressure of cladding layer 2;

[0030] Steel wire rope 4 is located inside at both sides of sheath 3, for being fixedly connected with outside to prevent connection slack after lead core 1 is impacted by heavy object;

[0031] The embodiment provides cable that can maintain normal use performance in fire scene, utilizes buffer pad 7 and air cavity 11 and elastic strip 12 above and on both sides thereof, can effectively form buffering and unloading to the stress part of cable, and utilizes the arc structure above cladding layer 2 to make heavy object and combustible material move outward, simultaneously utilizes steel wire rope 4 and fixedly connects with outside to replace the fixed structure of cable joint, by which, it can prevent connection slack caused by external impact to cable, can prevent flame sustained roasting caused by external drop and accumulation on the surface of cable, and can utilize buffering effect to make cable not be easily damaged by heavy object, to maintain use performance in fire scene.

[0032] The lower end part of the cladding layer 2 wraps the lead core 1, and protruding plugs 5 are arranged on both sides and clamped in the clamping grooves 6 on the inner side of the sheath 3, the lower surface of the upper end part of the cladding layer 2 is connected and fixed with the contact surface of the sheath 3 by means of hot melting, and can also be connected and fixed by means of bonding during assembly, and the connection mode can separate at any time for maintenance or replacement, thereby reducing the cable maintenance cost.

[0033] The upper end of the sheath 3 is provided with a side groove 8, and the lower surface of the arc-shaped structure of the cladding layer 2 is also provided with elastic protrusions 9, which are in contact with each other to form a buffer for external force, thereby enhancing the resistance of the cable to heavy objects in a fire.

[0034] The bottom of the sheath 3 is provided with a stop table 10 for positioning the lower end of the cladding layer 2 on both sides to quickly assemble it to the predetermined position, thereby facilitating subsequent hot melting connection and other operations.

[0035] The hollow groove 13 is arranged in the elastic strip 12, which provides a deformation space for the elastic strip 12 and enables the elastic strip 12 to reset to the initial state after deformation, thereby recovering the buffering function, and the elastic strip 12 is also used to drive the stop table 10 to reset, thereby forming a sustained force decomposition action.

[0036] The lower part of the stop table 10 and the bottom of the sheath 3 are provided with clamping seats 14, which clamp the elastic strip 12 through the arc-shaped grooves on the inner side to fix the buffer pad 7, thereby facilitating the assembly and installation of the buffer pad 7.

[0037] It can be understood that the cable of the utility model can maintain normal use performance in a fire, effectively avoid connection loosening caused by heavy object impact, and prevent flame from continuously roasting due to accumulation of flammable materials.

[0038] A specific application of the operation process of the embodiment is as follows: first, the cladding layer 2 and the sheath 3 are extruded by the special-shaped extrusion mechanism, and then the sheath 3 is assembled with the cladding layer 2 by using the opening on the top of the sheath 3, at this time, the plugs 5 are clamped in the clamping grooves 6, and the lower part is resisted by the stop table 10 and the buffer pad 7, and then the joint between the cladding layer 2 and the sheath 3 is sealed by hot melting or bonding; during use, when a fire occurs and a heavy object falls, the elastic deformation of the elastic protrusions 9, the air cavity 11 and the elastic strip 12 first releases the force, and then the arc-shaped structure of the cladding layer 2 guides the heavy object to slide to both sides, and the steel wire rope 4 connected with the outside bears the force to avoid the joint of the lead core 1 from loosening, and prevent the heavy object from directly damaging the cable; in addition, the heavy object and the burning object can also be prevented from accumulating at the cable by the guiding mode, so as to prevent the flame from continuously roasting the cable, thereby prolonging the use time of the cable in the fire, and reducing the accident loss.

[0039] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A high-temperature-resistant fireproof flexible cable, comprising a core (1), characterized in that: a cladding layer (2) and a sheath (3) are prepared by a profile extruder, the cladding layer (2) is assembled on the core (1) in use, the upper end portion of the cladding layer (2) is in an arc structure, used for guiding the weight outward, forming force relief while preventing accumulation; a buffer pad (7) is located at the bottom of the sheath (3), and an air cavity (11) and an elastic strip (12) are respectively arranged above and on both sides of the buffer pad (7), used for buffering and relieving force caused by the downward pressure of the cladding layer (2); a steel wire rope (4) is located inside the sheath (3) on both sides, used for fixedly connecting with the outside to prevent the core (1) from being loosened after being impacted by the weight. The lower end portion of the cladding layer (2) wraps the core (1), and the both sides are provided with protruding plugs (5) which are clamped in the clamping grooves (6) on the inner side of the sheath (3), the lower surface of the upper end portion of the cladding layer (2) is connected and fixed with the contact surface of the sheath (3) by a hot melting method, and can also be connected and fixed by an adhesive method during assembly. The upper end of the sheath (3) is provided with a side groove (8), the side groove (8) and the lower surface of the arc structure of the cladding layer (2) are both provided with elastic protrusions (9) which are in contact with each other for buffering external force. The bottom of the sheath (3) is provided with a stop table (10) on both sides for positioning the lower end of the cladding layer (2) on both sides.

2. A fire resistant flexible cable according to claim 1, characterised in that: The elastic strip (12) is provided with a hollow groove (13) in the inside, used for providing deformation space for the elastic strip (12).

3. A fire resistant flexible cable according to claim 1, characterised in that: The lower side of the stop table (10) and the bottom of the sheath (3) are both provided with clamping seats (14) which clamp the elastic strip (12) through the arc-shaped grooves on the inner side, so that the buffer pad (7) is fixed.

4. A fire resistant flexible cable according to claim 1, characterized in that: The elastic strip (12) is also used for driving the stop table (10) to reset, so as to form a continuous force relief and decomposition action.

5. A fire resistant flexible cable according to claim 1, wherein: ​ 6. A fire resistant flexible cable according to claim 4, characterised in that: ​ 7. A fire resistant flexible cable according to claim 1, wherein: ​

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