Explosion-proof cable

Abstract

The utility model relates to the technical field of explosion-proof cables, and provides an explosion-proof cable, which comprises a protective shell I and a protective shell II of the same model, the protective shell I and the protective shell II are correspondingly arranged, the left side ends of the protective shell I and the protective shell II are fixedly connected with plug-in parts, the outer sides of the plug-in parts are fixedly connected with mounting blocks which are opposite up and down, and the mounting blocks are fixedly connected with the protective shell I and the protective shell II. A mounting screw hole is formed in the middle of the inner wall of the mounting block, inserting grooves are formed in the right ends of the inner walls of the first protective shell and the second protective shell, and annular grooves are formed in the inserting grooves. According to the utility model, through the cooperation of the protective shell I, the protective shell II, the plugging part, the mounting block, the mounting screw hole, the mounting groove, the annular groove, the plugging groove, the positioning block, the positioning screw hole and the mounting bolt, the protection effect on the exterior of the cable body is achieved; therefore, abrasion and damage of the surface of the cable are effectively reduced, and external physical damage resistance of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof cables, in particular to an explosion-proof cable. Background Art

[0002] As we all know, explosion-proof cables are cables that are not strong enough to ignite the surrounding flammable and explosive gases when a short circuit or spark occurs in the line. The characteristics of explosion-proof cables are low capacitance, low storage of charge, good shielding performance and anti-static performance.

[0003] After searching, the existing patent (Announcement No.: CN217405144U) discloses an explosion-proof cable, which relates to the field of cable technology, including a cable body, the cable body including a cable core, the outer wall of the cable core is wrapped with an explosion-proof layer, and the outer wall of the explosion-proof layer is wrapped with an inner braided layer, the outer wall of the inner braided layer is provided with an impact-resistant layer, and the outer wall of the impact-resistant layer is wrapped with an outer braided layer, and the outer wall of the outer braided layer is provided with an outer protective layer. The utility model strengthens the overall strength of the cable body by providing an explosion-proof layer, and isolates the cable core to achieve an explosion-proof effect. At the same time, the inner braided layer and the outer braided layer are provided to ensure the strength of the cable body when it is pulled, and the impact-resistant layer is provided to ensure the strength of the cable body when it is impacted.

[0004] However, in the above solution, it is difficult to effectively protect the outside of the cable, which increases the risk of mechanical damage or wear, and easily causes premature damage or breakage of the cable, posing certain safety hazards.

[0005] In view of this, the utility model provides an explosion-proof cable. Utility Model Content

[0006] The utility model provides an explosion-proof cable, which solves the problem in the related art that it is difficult to effectively protect the outside of the cable.

[0007] The technical solution of the utility model is as follows: an explosion-proof cable, comprising a protective shell 1 and a protective shell 2 of the same model, the protective shell 1 and the protective shell 2 being arranged correspondingly, the left ends of the protective shell 1 and the protective shell 2 are fixedly connected with a plug-in portion, the outer side of the plug-in portion is fixedly connected with a mounting block opposite to each other up and down, the middle part of the inner wall of the mounting block is provided with a mounting screw hole, the right end of the inner wall of the protective shell 1 and the protective shell 2 is provided with a plug-in groove, the plug-in groove is provided with an annular groove, the outer end of the annular groove is provided with a mounting groove opposite to each other on the left and right, the right end of the inner wall of the protective shell 1 and the protective shell 2 is fixedly connected with a positioning block opposite to each other up and down, the middle part of the inner wall of the positioning block is provided with a positioning screw hole, and the inner part of the positioning screw hole is threadedly connected with a mounting bolt.

[0008] Preferably, the plug-in slot at the right end of the protective shell one and the plug-in portion at the left end of the protective shell two are arranged correspondingly, and the plug-in portion is slidably connected inside the plug-in slot.

[0009] Preferably, the size of the mounting block matches the mounting groove, the mounting block and the mounting groove are arranged correspondingly, and the mounting block is slidably connected inside the annular groove.

[0010] Preferably, the sizes of the mounting screw hole and the positioning screw hole match each other, the mounting screw hole and the positioning screw hole are coaxially arranged, and the mounting screw hole is internally threadedly connected with a mounting bolt.

[0011] Preferably, a cable body is installed inside the protective shell one and the protective shell two, an outer protective layer is provided on the outer surface of the cable body, and an explosion-proof layer is provided on the inner side of the outer protective layer.

[0012] Preferably, a flame retardant layer is arranged inside the explosion-proof layer, an insulating layer is arranged inside the flame retardant layer, and an electric conductor is arranged inside the insulating layer.

[0013] Preferably, the outer protective layer is made of polyvinyl chloride material, and the explosion-proof layer is made of polytetrafluoroethylene material.

[0014] Preferably, the flame retardant layer is made of magnesium oxide material, the insulating layer is made of cross-linked polyvinyl chloride material, and the conductor is made of alloy material.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. In the utility model, the protective effect of the outside of the cable body is achieved through the cooperation of protective shell 1, protective shell 2, plug-in part, mounting block, mounting screw hole, mounting groove, annular groove, plug-in groove, positioning block, positioning screw hole and mounting bolt. By providing an additional external protective layer for the cable body, the wear and damage of the cable surface is effectively reduced, and its ability to resist external physical damage is improved, which is beneficial to reduce the risk of damage to the cable in harsh environments and extend its service life. At the same time, through multi-layer splicing, it can be applicable to cables of different models and lengths, and enhance environmental adaptability.

[0017] 2. In the utility model, the electric current can be guided by the electric conductor to ensure the stable transmission of power or signals by the cable, and the electric conductor can be isolated by the insulating layer to prevent current leakage and short circuit. The flame retardant layer can slow down the spread of flames and reduce the possibility of fire spread. The explosion-proof layer can quickly suppress the spread of sparks or flames when a cable fails to reduce the risk of fire and explosion. Finally, the outer sheath provides mechanical protection for the cable body, thereby improving its safety and reliability in various environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is an isometric stereoscopic schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of a three-dimensional structure of a protective shell of the utility model;

[0021] Figure 3 This is a schematic diagram of a split structure of a protective shell of the utility model;

[0022] Figure 4 This is a schematic diagram of an installation structure of a protective shell of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the cable body of the utility model.

[0024] In the figure: 1. Protective shell 1; 2. Protective shell 2; 3. Plug-in part; 4. Mounting block; 5. Mounting screw hole; 6. Mounting groove; 7. Annular groove; 8. Plug-in groove; 9. Positioning block; 10. Positioning screw hole; 11. Mounting bolt; 12. Cable body; 13. Outer sheath; 14. Explosion-proof layer; 15. Flame retardant layer; 16. Insulating layer; 17. Conductor. DETAILED DESCRIPTION

[0025] The following will be combined with 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 of 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.

[0026] Example 1

[0027] The preferred embodiment of the explosion-proof cable provided by the utility model is as follows Figures 1 to 5 As shown: an explosion-proof cable, comprising a protective shell 1 and a protective shell 2 of the same type, the protective shell 1 and the protective shell 2 are arranged correspondingly, the left ends of the protective shell 1 and the protective shell 2 are fixedly connected with a plug-in part 3, in order to further improve the stability of the plug-in part 3, the outer side of the plug-in part 3 is fixedly connected with a mounting block 4 opposite to each other up and down, the plug-in part 3 fixes the mounting block 4, a mounting screw hole 5 is provided in the middle of the inner wall of the mounting block 4, the right ends of the inner walls of the protective shell 1 and the protective shell 2 are provided with a plug-in groove 8, the plug-in groove 8 is provided with an annular groove 7, the outer end of the annular groove 7 is provided with a mounting groove 6 opposite to each other on the left and right, the mounting groove 6 is connected with the annular groove 7, the right ends of the inner walls of the protective shell 1 and the protective shell 2 are fixedly connected with a positioning block 9 opposite to each other up and down, in order to further improve the stability of the positioning block 9, a positioning screw hole 10 is provided in the middle of the inner wall of the positioning block 9, and a mounting bolt 11 is threadedly connected inside the positioning screw hole 10.

[0028] In this embodiment, the plug-in slot 8 at the right end of the protective shell 1 is correspondingly arranged with the plug-in portion 3 at the left end of the protective shell 2, and the plug-in portion 3 is slidably connected inside the plug-in slot 8.

[0029] In this embodiment, the size of the mounting block 4 matches the mounting groove 6 , the mounting block 4 and the mounting groove 6 are correspondingly arranged, and the mounting block 4 is slidably connected inside the annular groove 7 .

[0030] In this embodiment, the size of the mounting screw hole 5 matches that of the positioning screw hole 10, and the mounting screw hole 5 and the positioning screw hole 10 are coaxially arranged. The internal thread of the mounting screw hole 5 is connected with a mounting bolt 11, and the mounting bolt 11 is screwed into the mounting screw hole 5 to complete the fixed installation of the protective shell 1 and the protective shell 2 2.

[0031] Example 2

[0032] On the basis of Example 1, a preferred embodiment of the explosion-proof cable provided by the utility model is as follows Figures 1 to 5 As shown: a cable body 12 is installed inside the protective shell 1 and the protective shell 2 2, an outer protective layer 13 is provided on the outer surface of the cable body 12, and an explosion-proof layer 14 is provided on the inner side of the outer protective layer 13. The explosion-proof layer 14 is used to prevent sparks or flames from spreading inside the cable to reduce the risk of fire and explosion.

[0033] In this embodiment, a flame retardant layer 15 is provided inside the explosion-proof layer 14, and the flame retardant layer 15 is used to slow down the spread of flames and reduce the possibility of fire spread. An insulating layer 16 is provided inside the flame retardant layer 15, and the insulating layer 16 is used to isolate the electrical conductor 17 to prevent current leakage and short circuit. The electrical conductor 17 is provided inside the insulating layer 16.

[0034] In this embodiment, the material of the outer protective layer 13 is polyvinyl chloride material, and the material of the explosion-proof layer 14 is polytetrafluoroethylene material.

[0035] In this embodiment, the flame retardant layer 15 is made of magnesium oxide, the insulating layer 16 is made of cross-linked polyvinyl chloride, and the conductor 17 is made of alloy.

[0036] The working principle and use process of the utility model are as follows: first, place the protective shell 1 and the protective shell 2 in corresponding positions, and at the same time, align the mounting block 4 with the mounting groove 6. At this time, push the protective shell 2 to the left, and as the protective shell 2 moves, the mounting block 4 is driven to pass through the mounting groove 6 and enter the inside of the annular groove 7. At the same time, the plug-in portion 3 enters the inside of the plug-in groove 8, and the protective shell 2 is rotated, thereby driving the mounting block 4 to move inside the annular groove 7 until the mounting screw hole 5 corresponds to the position of the positioning screw hole 10, and the mounting bolt 11 is screwed until the mounting bolt 11 is screwed with the mounting screw hole 5, thereby completing the installation of the protective shell 1 and the protective shell 2, and achieving the protection effect on the outside of the cable body 12. The result is that an additional external protective layer is provided for the cable body 12, thereby effectively reducing the wear and damage of the cable surface and improving its ability to resist external physical damage. At the same time, it can be applied to cables of different models and lengths through multi-layer splicing, enhancing environmental adaptability. The outer sheath 13 provides mechanical protection for the cable body 12, and an explosion-proof layer 14 is provided to prevent sparks or flames from spreading inside the cable to reduce the risk of fire and explosion. The flame retardant layer 15 is used to slow down the spread of flames and reduce the possibility of fire spreading. The insulating layer 16 is used to isolate the conductor 17 to prevent current leakage and short circuit, and the conductor 17 can guide the current to ensure that the cable can stably transmit power or signals.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An explosion-proof cable, comprising a protective shell 1 (1) and a protective shell 2 (2) of the same type, It is characterized in that The protective shell 1 (1) and the protective shell 2 (2) are arranged correspondingly. The left ends of the protective shell 1 (1) and the protective shell 2 (2) are fixedly connected with a plug-in portion (3). The outer side of the plug-in portion (3) is fixedly connected with a mounting block (4) opposite to each other up and down. The middle part of the inner wall of the mounting block (4) is provided with a mounting screw hole (5). The right ends of the inner walls of the protective shell 1 (1) and the protective shell 2 (2) are both provided with a plug-in groove (8). The plug-in groove (8) is provided with an annular groove (7). The outer end of the annular groove (7) is provided with a mounting groove (6) opposite to each other on the left and right. The right ends of the inner walls of the protective shell 1 (1) and the protective shell 2 (2) are both fixedly connected with a positioning block (9) opposite to each other up and down. The middle part of the inner wall of the positioning block (9) is provided with a positioning screw hole (10). The inner part of the positioning screw hole (10) is threadedly connected with a mounting bolt (11).

2. An explosion-proof cable according to claim 1, It is characterized in that The plug-in slot (8) at the right end of the protective shell 1 (1) and the plug-in portion (3) at the left end of the protective shell 2 (2) are arranged correspondingly, and the plug-in portion (3) is slidably connected inside the plug-in slot (8).

3. An explosion-proof cable according to claim 1, It is characterized in that The size of the mounting block (4) matches the mounting groove (6); the mounting block (4) and the mounting groove (6) are arranged correspondingly; and the mounting block (4) is slidably connected inside the annular groove (7).

4. An explosion-proof cable according to claim 1, It is characterized in that The size of the mounting screw hole (5) matches that of the positioning screw hole (10); the mounting screw hole (5) and the positioning screw hole (10) are coaxially arranged; and a mounting bolt (11) is threadedly connected inside the mounting screw hole (5).

5. An explosion-proof cable according to claim 1, It is characterized in that A cable body (12) is installed inside the protective shell one (1) and the protective shell two (2), an outer protective layer (13) is arranged on the outer surface of the cable body (12), and an explosion-proof layer (14) is arranged inside the outer protective layer (13).

6. An explosion-proof cable according to claim 5, It is characterized in that A flame retardant layer (15) is arranged inside the explosion-proof layer (14), an insulating layer (16) is arranged inside the flame retardant layer (15), and an electric conductor (17) is arranged inside the insulating layer (16).

7. An explosion-proof cable according to claim 5, It is characterized in that The material of the outer protective layer (13) is polyvinyl chloride material, and the material of the explosion-proof layer (14) is polytetrafluoroethylene material.

8. An explosion-proof cable according to claim 6, It is characterized in that The material of the flame retardant layer (15) is magnesium oxide material, the material of the insulating layer (16) is cross-linked polyvinyl chloride material, and the material of the electrical conductor (17) is alloy material.

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