Wear-resistant flame-retardant cable and connecting assembly

Abstract

The utility model belongs to the technical field of flame-retardant cables, and particularly relates to a wear-resistant flame-retardant cable and a connecting assembly, the wear-resistant flame-retardant cable comprises a cable, cable cores distributed circumferentially are arranged in the cable, a marking groove is arranged outside the cable, and an embedding groove is arranged outside the cable close to the connecting end of the cable; a wear-resistant flame-retardant cable connecting assembly comprises a reducing sleeve connected with cables and a pressing sleeve connected to the other end of the reducing sleeve, and further comprises a connecting body arranged between the two cables, cable cores are extruded and deformed through connection of the reducing sleeve and the pressing sleeve, and the two cable cores are supported through the connecting body and electrically conducted; it can be understood that firstly, the arranged marking groove can accurately control the wire stripping length and is convenient to cooperate with the connecting assembly, secondly, the arranged connecting assembly can guarantee stable connection and can also guarantee electrical conduction, and the wire stripping device has the advantages of being simple and reliable in structure, convenient and fast to operate and attractive in appearance.

Description

Technical Field

[0001] The utility model belongs to the technical field of flame-retardant cables, in particular to a wear-resistant flame-retardant cable and a connecting component. Background Art

[0002] Wear-resistant flame-retardant cable is a special cable product that combines the characteristics of wear resistance and flame retardancy. This cable adopts specific materials and processes during the design and manufacturing process to ensure that it can withstand mechanical wear and have excellent flame retardant properties when encountering fire sources;

[0003] The cable connector is used to connect two sections of cables, and generally needs to have functions such as waterproof, dustproof, and corrosion-resistant. The existing connection method is to connect the connection sleeve, then press the connection sleeve to deform, and finally wrap the waterproof part on the outside. First of all, this connection method requires a clamping device with a large pressure to deform the cable and the connection sleeve to increase friction. Secondly, the thickness of the wrapped waterproof layer is large, and the diameter after connection is often larger than the cable diameter, which is not beautiful and is not conducive to the laying of cables, especially in narrow spaces.

[0004] In order to solve the above problems, the present application proposes a wear-resistant and flame-retardant cable and a connection assembly. Utility Model Content

[0005] The purpose of the utility model is to provide a wear-resistant and flame-retardant cable and a connection assembly, which solves the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a wear-resistant flame-retardant cable, comprising a cable, wherein the cable is provided with circumferentially distributed cable cores inside, the cable is provided with marking grooves outside, and the cable is further provided with an engaging groove outside the connecting end of the cable.

[0008] Furthermore, a wear-resistant and flame-retardant cable connection assembly is provided for connecting two wear-resistant and flame-retardant cables, including an adapter sleeve connected to the cable and a compression sleeve connected to the other end of the adapter sleeve, and also including a connector arranged between the two cables. The cable core is squeezed and deformed by the connection between the adapter sleeve and the compression sleeve, and the two cable cores are supported and electrically conductive by the connector. A sealing sleeve is also arranged on the outside of the compression sleeve and the connector.

[0009] Furthermore, the adapter sleeve includes an engaging ring formed at one end and docked with the engaging groove, and a wire passing hole penetrating through the inside of the adapter sleeve, the cable core passes through the wire passing hole, and an internal thread is also provided at one end of the inner side of the adapter sleeve.

[0010] Furthermore, the compression sleeve includes a crimping sleeve formed at one end and a tapered sleeve connected to one end of the crimping sleeve, and an external thread formed on the outside of the tapered sleeve, the external thread cooperates with the internal thread and connects the compression sleeve to one end of the adapter sleeve.

[0011] Furthermore, the connector includes a connecting pin and guide platforms fixed at both ends of the connecting pin, as well as clamping grooves opened at both ends of the connecting pin and a copper block fixed inside the connecting pin.

[0012] Furthermore, the cable core is fitted on the outside of the guide platform and embedded in the slot, both ends of the copper block extend in the slot, and the cable core is also in contact with the copper block.

[0013] Furthermore, the crimping sleeve is fitted onto the outside of the connecting pin and stably fits the cable core onto the slot and the copper block, and the conical sleeve and the guide platform are pushed to squeeze and fit the cable core.

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

[0015] The utility model provides a marking groove on the cable, which can limit the stripping length before the cable is connected, so that the stripped cable core can be accurately matched with the connection component, which is convenient for connection work;

[0016] The utility model provides a connection component which does not require a pressure-assisted tool when in use and can form a reliable connection between two cables, ensuring reliable electrical conduction while providing a stable connection. The connection component also has the characteristics of simple and reliable structure, convenient operation and beautiful appearance.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the partially exploded structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model after connection;

[0021] Figure 3 This is a schematic diagram of the structure of the utility model with one end connected and half-sectioned in the front view;

[0022] Figure 4This is a schematic diagram of the structure of the transfer sleeve in the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the compression sleeve in the utility model;

[0024] Figure 6 It is a structural schematic diagram of the connector in the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] In the figure: 1. cable; 11. cable core; 12. marking groove; 13. fitting groove; 2. adapter sleeve; 21. internal thread; 22. wire hole; 23. fitting ring; 3. compression sleeve; 31. wire pressing sleeve; 32. conical sleeve; 33. external thread; 4. connector; 41. connecting pin; 42. guide platform; 43. slot; 44. copper block; 5. sealing sleeve. DETAILED DESCRIPTION

[0027] 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.

[0028] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] See also Figure 1-6 As shown, a wear-resistant and flame-retardant cable includes a cable 1, wherein a circumferentially distributed cable core 11 is provided inside the cable 1, a marking groove 12 is provided outside the cable 1, and an engaging groove 13 is provided outside the cable 1 near the connecting end of the cable.

[0030] See also Figure 1-6 As shown, a wear-resistant and flame-retardant cable connection assembly is used for connecting two wear-resistant and flame-retardant cables, including a transition sleeve 2 connected to the cable 1, and a compression sleeve 3 connected to the other end of the transition sleeve 2, and also includes a connector 4 arranged between the two cables 1. The cable core 11 is squeezed and deformed by the connection between the transition sleeve 2 and the compression sleeve 3. The two cable cores 11 are supported and electrically conductive by the connector 4, and a sealing sleeve 5 is also arranged outside the compression sleeve 3 and the connector 4.

[0031] Among them, the adapter sleeve 2 includes an engaging ring 23 formed at one end and docked with the engaging groove 13, and a wire hole 22 penetrating through the inside of the adapter sleeve 2. The cable core 11 passes through the wire hole 22. An internal thread 21 is also provided at one end of the inner side of the adapter sleeve 2. In this embodiment, the adapter sleeve 2 can be stably connected to the cable 1 without affecting the passage of the cable core 11, and can also be reliably connected to the compression sleeve 3.

[0032] Among them, the compression sleeve 3 includes a compression sleeve 31 formed at one end and a tapered sleeve 32 connected to one end of the compression sleeve 31, and an external thread 33 formed on the outside of the tapered sleeve 32. The external thread 33 is threadedly matched with the internal thread 21 and the compression sleeve 3 is connected to one end of the adapter sleeve 2. The main purpose of the compression sleeve 3 in this embodiment is to fit and press the exposed part of the cable core 11 to prevent it from falling off.

[0033] Among them, the connecting body 4 includes a connecting pin 41 and a guide platform 42 fixed at both ends of the connecting pin 41, as well as a slot 43 opened at both ends of the connecting pin 41 and a copper block 44 fixed inside the connecting pin 41. In this embodiment, the guide platform 42 is used for internal support of the cable core 11 after deformation, and then the cable core 11 in the deformed state is compressed under the action of the conical sleeve 32, thereby increasing the tensile strength while connecting.

[0034] Among them, the cable core 11 is attached to the outside of the guide platform 42 and embedded in the slot 43, the two ends of the copper block 44 extend in the slot 43, and the cable core 11 is also in contact with the copper block 44. In this embodiment, the slot 43 can not only limit the cable core 11, but also stably fit it with the copper block 44 to ensure stability and conductivity.

[0035] Among them, the crimping sleeve 31 is fitted on the outside of the connecting pin 41 and stably fits the cable core 11 on the slot 43 and the copper block 44, and the conical sleeve 32 and the guide platform 42 are pushed to squeeze and fit the cable core 11. In this embodiment, the cooperation between the crimping sleeve 31 and the connecting pin 41 and between the conical sleeve 32 and the guide platform 42 all play a role in stabilizing the cable core 11, thereby ensuring the stability of the connection.

[0036] It can be understood that the marking groove 12 set first can accurately control the wire stripping length, which is convenient for cooperation with the connecting component. Secondly, the connecting component set can ensure stable connection and electrical conductivity at the same time, and has the characteristics of simple and reliable structure, convenient operation and beautiful appearance.

[0037] A specific application of this embodiment is: according to the position of the marking groove 12, the flame retardant layer, the wear-resistant layer, the filling layer, etc. in the cable 1 are all stripped off to expose the cable core 11, and then the interlocking groove 13 is formed by ring cutting near the stripped end outside the cable 1, the adapter sleeve 2 is docked with the cable 1, the cable core 11 passes through the wire hole 22, and then glue is applied to the outside of the interlocking groove 13, the interlocking ring 23 is sleeved on the outside of the interlocking groove 13, the adapter sleeve 2 is fixed to the connection end of the cable 1 by glue, one end of the connector 4 is pressed against the inner side of the adapter sleeve 2, and the exposed cable core 11 is placed along the outside of the connector 4 and fits in the card slot 43, the external thread 33 is pushed forward and sleeved on the outside of the connector 4, and after the compression sleeve 3 is rotated, the compression sleeve 3 is connected to the adapter sleeve 2 through the spiral of the external thread 33 and the internal thread 21. At the same time, the conical sleeve 32 squeezes the cable core 11 to fit the outside of the connector 4. At this time, the wire pressing sleeve 31 is sleeved on the outside of the connecting pin 41 and stabilizes the cable core 11 in the groove 43. The groove 43 is in contact with the copper block 44, and the cable 1 at the other end is also connected. Finally, glue is applied to the outside of the connecting pin 41 and the wire pressing sleeve 31, and sealed by the sealing sleeve 5. The two sealing sleeves 5 are then fixed by bolts.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wear-resistant flame-retardant cable, comprising a cable (1), characterized in that: The cable (1) is provided with a circumferentially distributed cable core (11) inside, the cable (1) is provided with a marking groove (12) outside, and the cable (1) is also provided with an embedding groove (13) outside near the cable connection end.

2. A wear-resistant flame-retardant cable connection assembly, used for connecting two wear-resistant flame-retardant cables in claim 1, characterized in that: The invention comprises an adapter sleeve (2) connected to the cable (1), and a compression sleeve (3) connected to the other end of the adapter sleeve (2), and also comprises a connector (4) arranged between the two cables (1); the cable core (11) is squeezed and deformed by the connection between the adapter sleeve (2) and the compression sleeve (3); the two cable cores (11) are supported and electrically connected by the connector (4); and a sealing sleeve (5) is further arranged outside the compression sleeve (3) and the connector (4).

3. The wear-resistant and flame-retardant cable connection assembly according to claim 2, characterized in that: The adapter sleeve (2) comprises an engaging ring (23) formed at one end and connected to the engaging groove (13), and a wire hole (22) extending through the inside of the adapter sleeve (2), the cable core (11) extending through the wire hole (22), and an internal thread (21) is also provided at one end of the inner side of the adapter sleeve (2).

4. The wear-resistant and flame-retardant cable connection assembly according to claim 3, characterized in that: The compression sleeve (3) comprises a wire pressing sleeve (31) formed at one end, a tapered sleeve (32) connected to one end of the wire pressing sleeve (31), and an external thread (33) formed on the outside of the tapered sleeve (32), wherein the external thread (33) is threadably matched with the internal thread (21) and connects the compression sleeve (3) to one end of the adapter sleeve (2).

5. The wear-resistant and flame-retardant cable connection assembly according to claim 4, characterized in that: The connecting body (4) comprises a connecting pin (41) and guide platforms (42) fixed at both ends of the connecting pin (41), as well as clamping grooves (43) opened at both ends of the connecting pin (41) and a copper block (44) fixed inside the connecting pin (41).

6. The wear-resistant and flame-retardant cable connection assembly according to claim 5, characterized in that: The cable core (11) is fitted on the outside of the guide platform (42) and embedded in the slot (43). Both ends of the copper block (44) extend in the slot (43). The cable core (11) is also in fit contact with the copper block (44).

7. The wear-resistant and flame-retardant cable connection assembly according to claim 5, characterized in that: The crimping sleeve (31) is sleeved on the outside of the connecting pin (41) and stably fits the cable core (11) on the clamping groove (43) and the copper block (44); the conical sleeve (32) and the guide platform (42) are pushed to squeeze and fit the cable core (11).

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