Railway signal cable connection structure

Abstract

The utility model discloses a railway signal cable connection structure, which belongs to the technical field of cable connection and comprises a cable, a wiring opening is arranged on the side wall of the cable, a grounding wire is arranged on the side wall of the wiring opening, a primary protective cover and a secondary protective cover are arranged on the side wall of the cable, and the primary protective cover and the secondary protective cover are arranged on the side wall of the cable. According to the utility model, the grounding anti-falling sealing mechanism is arranged, and the primary protective cover and the secondary protective cover are arranged on the side wall of the cable in the process, so that the joint of the cable and the grounding wire is protected from being influenced by the external environment; the grounding anti-falling sealing mechanism is composed of a wiring pipe, an end cover, a compaction groove, a compaction screw rod, a compaction block and a sealing plug ring, the stability and the sealing performance of the connecting position of a wiring opening in the side wall of the cable and the grounding wire are ensured, the grounding wire is effectively prevented from loosening or falling off, and the connecting position is effectively prevented from being corroded by external impurities.

Description

Technical Field

[0001] This utility model relates to the field of cable connection technology, and in particular to a railway signal cable connection structure. Background Technology

[0002] Railway signal cables play a vital role in the railway system, ensuring the safe, stable, and efficient operation of railway transportation. However, with the continuous development of railway construction and the increasing complexity of the operating environment, the use of railway signal cables faces various challenges, especially the protection of the grounding wire. The grounding wire of railway signal cables is mainly used to ensure the safety of the electrical system and prevent current leakage and damage to electrical equipment. However, during long-term operation, the grounding wire is exposed to environmental factors and is easily corroded by moisture, dirt, corrosion, and other external substances, leading to unstable signal transmission and even cable failure.

[0003] Existing grounding connectors lack corresponding protective structures for the protection of railway grounding wires themselves and the connection strength at grounding connections. In addition, the environments where grounding wires are located are mostly cool and humid, making it easy for metal corrosion to occur at cable joints.

[0004] The existing patent (publication number: CN217522563U) describes a ground wire clamp for railway cable construction, comprising an upper sealing shell, a lower sealing shell, and cable connectors. Two cable connectors are interlocked. Both the upper and lower sealing shells cooperate with the cable connectors, and the upper and lower sealing shells are fixedly connected. The two cable connectors are fixedly clamped between the upper and lower sealing shells. This utility model features a simple overall structure, low production cost, and easy processing. It provides excellent protection for the cable ground wire connectors and ensures the connection strength of the ground wire connection. It also has certain impact resistance and corrosion resistance, demonstrating significant benefits and low cost, making it worthy of promotion.

[0005] Existing patents offer solutions to the above problems, but they cannot achieve a reinforced connection and sealing protection between the cable and the grounding wire. This can lead to the connection between the cable and the grounding wire being eroded by moisture, dirt, corrosion and other external substances, resulting in unstable signal transmission or even cable failure.

[0006] Therefore, a railway signal cable connection structure is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a railway signal cable connection structure that can solve the problem that existing railway cable construction ground wire clamps cannot achieve reinforced connection and sealing protection between the cable and the ground wire. This leads to the connection between the cable and the ground wire being eroded by moisture, dirt, corrosion and other external substances, resulting in unstable signal transmission or even cable failure.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a railway signal cable connection structure, including a cable, a wiring opening provided on the side wall of the cable, a grounding wire provided on the side wall of the wiring opening, a female protective cover and a female protective cover provided on the side wall of the cable, a grounding anti-detachment sealing mechanism provided on the side wall of the female protective cover, and a sealing connection mechanism provided between the female protective cover and the female protective cover;

[0009] The grounding anti-detachment sealing mechanism includes a wiring pipe disposed on the side wall of the mother protective cover, the grounding wire disposed inside the wiring pipe, an end cap threaded to one end of the wiring pipe, a compaction groove disposed on one side of the end cap, a plurality of compaction screws threaded to the side wall of the end cap, a compaction block movably disposed at the bottom of the compaction screw, the side wall of the compaction block contacting the grounding wire, and a sealing ring disposed on the side wall of the end cap, the two side walls of the sealing ring contacting the wiring pipe and the grounding wire respectively.

[0010] Preferably, the sealing connection mechanism includes connecting blocks disposed at both ends of the mother protective cover, connecting heads disposed on the side walls of the connecting blocks, locking blocks disposed at both ends of the daughter protective cover, the locking blocks being movably connected to the connecting heads, a locking nut disposed at one end of the connecting heads, and sealing rubber heads disposed at both ends of the mother protective cover and the daughter protective cover, the sealing rubber heads being semi-circular in shape.

[0011] Preferably, two anti-detachment covers are provided on the side wall of the wiring opening. The anti-detachment covers are semi-cylindrical, and the top of the two anti-detachment covers are threaded with locking rings. The side wall of the locking rings is provided with through holes, and the grounding wire passes through the middle of the anti-detachment cover.

[0012] Preferably, a support block is fixedly connected to the inner wall of both the mother protective cover and the daughter protective cover. The support block is semi-circular and its side wall is in contact with the cable.

[0013] Preferably, the inner wall of the support block is provided with an anti-slip block, and the side wall of the anti-slip block is provided with anti-slip teeth.

[0014] Preferably, the sidewall of the compacted block is provided with a plurality of cones, and the cones are in contact with the grounding wire.

[0015] Preferably, both ends of the mother protective cover and the daughter protective cover are provided with slots, the cross-section of the slot is a three-quarter circle, and a retaining ring is movably provided on the side wall of the slot.

[0016] Preferably, the mother protective cover has an insert strip on its side wall and the child protective cover has a slot on its side wall, and the insert strip is adapted to the slot.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application incorporates a grounding anti-detachment sealing mechanism. This process involves installing a female protective cover and a female protective cover on the side wall of the cable to protect the connection between the cable and the grounding wire from external environmental influences such as moisture and dust. The grounding anti-detachment sealing mechanism consists of a connecting pipe, an end cap, a compaction groove, a compaction screw, a compaction block, and a sealing ring. The grounding wire is placed inside the connecting pipe and fixed by the compaction groove and compaction screw on the end cap. The movable design of the compaction block ensures that the grounding wire is firmly pressed, preventing it from loosening or falling off. At the same time, the sealing ring ensures the seal between the connecting pipe and the grounding wire, preventing moisture or dust and other impurities from entering. Thus, the stability and sealing of the connection between the cable side wall opening and the grounding wire are ensured, effectively preventing the grounding wire from loosening or falling off, as well as the corrosion of the connection by external impurities.

[0019] 2. This application incorporates a sealing connection mechanism. This mechanism, consisting of a connecting block, a connector, a locking block, a locking nut, and a sealing rubber head, is installed between the mother and daughter protective covers. The connecting block, connector, locking block, and locking nut ensure that the mother and daughter protective covers are tightly connected together, achieving a sealed connection at the connection point between the cable and the grounding wire. The semi-circular design of the sealing rubber head not only ensures the sealing performance of the connection but also increases the flexibility of the connection. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an overall structural view of the present invention;

[0022] Figure 2 This is the left view of the present invention;

[0023] Figure 3This utility model Figure 2 A three-dimensional cross-sectional view of point AA in the middle;

[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0025] Figure 5 This is a schematic diagram of the sealing connection mechanism in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the support block, anti-slip block, and anti-slip teeth in this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Cable; 2. Wiring opening; 3. Grounding wire; 4. Main protective cover; 5. Sub-protective cover; 6. Grounding anti-derailment sealing mechanism; 7. Sealing connection mechanism; 61. Wiring pipe; 62. End cap; 63. Compacting groove; 64. Compacting screw; 65. Compacting block; 66. Sealing plug ring; 71. Connecting block; 72. Connector; 73. Locking block; 74. Locking nut; 75. Sealing rubber head; 8. Anti-derailment cover; 9. Locking ring; 10. Through hole; 11. Support block; 12. Anti-slip block; 13. Anti-slip tooth; 14. Cone; 15. Slot; 16. Snap ring; 17. Insert; 18. Slot. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1 to 6 This utility model provides a technical solution:

[0031] A railway signal cable connection structure includes a cable 1, a wiring opening 2 on the side wall of the cable 1, a grounding wire 3 on the side wall of the wiring opening 2, a female protective cover 4 and a female protective cover 5 on the side wall of the cable 1, a grounding anti-detachment sealing mechanism 6 on the side wall of the female protective cover 4, and a sealing connection mechanism 7 between the female protective cover 4 and the female protective cover 5.

[0032] The grounding anti-detachment sealing mechanism 6 includes a wiring pipe 61 disposed on the side wall of the mother protective cover 4, a grounding wire 3 disposed inside the wiring pipe 61, an end cap 62 threadedly connected to one end of the wiring pipe 61, a compaction groove 63 disposed on one side of the end cap 62, a plurality of compaction screws 64 threadedly connected to the side wall of the end cap 62, a compaction block 65 movably disposed at the bottom of the compaction screw 64, the side wall of the compaction block 65 contacting the grounding wire 3, and a sealing ring 66 disposed on the side wall of the end cap 62, the two side walls of the sealing ring 66 contacting the wiring pipe 61 and the grounding wire 3 respectively.

[0033] Specifically, such as Figure 6 As shown, two anti-detachment covers 8 are provided on the side wall of the wiring opening 2. The anti-detachment covers 8 are semi-cylindrical. The top of the two anti-detachment covers 8 is threaded with a locking ring 9. The side wall of the locking ring 9 is provided with a through hole 10. The grounding wire 3 passes through the middle of the anti-detachment cover 8.

[0034] Specifically, such as Figure 6 As shown, support blocks 11 are fixedly connected to the inner walls of both the mother protective cover 4 and the daughter protective cover 5. The support blocks 11 are semi-circular, and the side walls of the support blocks 11 are in contact with the cable 1.

[0035] Specifically, such as Figure 6 As shown, an anti-slip block 12 is provided on the inner wall of the support block 11, and anti-slip teeth 13 are provided on the side wall of the anti-slip block 12.

[0036] Specifically, such as Figure 4 As shown, multiple cones 14 are provided on the side wall of the compaction block 65, and the cones 14 are in contact with the grounding wire 3.

[0037] In use, the cable 1 has a wiring opening 2 on its side wall for connection to the grounding wire 3, ensuring the safety and electromagnetic compatibility of the cable 1. The female protective cover 4 and the female protective cover 5 provide additional protection at the connection point between the cable 1 and the grounding wire 3, preventing damage from the external environment. The grounding wire 3 is placed inside the wiring conduit 61 and fixed by the compaction groove 63 and compaction screw 64 on the end cap 62. The movable setting of the compaction block 65 and the cone 14 on it ensure that the grounding wire 3 is firmly pressed, preventing it from loosening or falling off. Simultaneously, the sealing ring 66 ensures a tight seal between the wiring conduit 61 and the grounding wire 3, preventing moisture or dust and other impurities from entering. The wiring opening 2... Two anti-detachment covers 8 are also provided on the side wall. These two anti-detachment covers 8 are fixed by locking rings 9, which further enhances the stability of the grounding wire 3 and prevents it from falling off due to vibration or external force during long-term use. The support block 11 provides additional support for the cable 1 and prevents it from being deformed or damaged due to external force. The inner wall of the support block 11 is also provided with anti-slip blocks 12 and anti-slip teeth 13, which further enhances the friction between the cable 1 and the support block 11 and prevents the cable 1 from sliding during the connection process. In this way, the stability and sealing of the connection between the wiring opening 2 on the side wall of the cable 1 and the grounding wire 3 are ensured, effectively preventing the grounding wire 3 from loosening or falling off, as well as the corrosion of the connection by external impurities.

[0038] Specifically, such as Figure 5 As shown, the sealing connection mechanism 7 includes connecting blocks 71 disposed at both ends of the mother protective cover 4, connecting heads 72 disposed on the side walls of the connecting blocks 71, locking blocks 73 disposed at both ends of the daughter protective cover 5, the locking blocks 73 being movably connected to the connecting heads 72, a locking nut 74 disposed at one end of the connecting head 72, and sealing rubber heads 75 disposed at both ends of the mother protective cover 4 and the daughter protective cover 5, the sealing rubber heads 75 being semi-circularly shaped.

[0039] Specifically, such as Figure 5 As shown, both ends of the mother protective cover 4 and the daughter protective cover 5 are provided with slots 15. The cross-section of the slot 15 is a three-quarter circle, and a retaining ring 16 is movably provided on the side wall of the slot 15.

[0040] Specifically, such as Figure 5 and Figure 6 As shown, the mother protective cover 4 has an insert 17 on its side wall and the daughter protective cover 5 has a slot 18 on its side wall, with the insert 17 and slot 18 being compatible.

[0041] In use, the mother protective cover 4 has connecting blocks 71 at both ends, and connecting blocks 71 are equipped with connectors 72. The daughter protective cover 5 has locking blocks 73 at both ends. These locking blocks 73 can be movably connected with the connectors 72. When the mother protective cover 4 and the daughter protective cover 5 need to be combined, the locking blocks 73 will be inserted into the corresponding connectors 72 to form a preliminary connection. One end of the connector 72 is also equipped with a locking nut 74. After the locking blocks 73 are connected to the connectors 72, the connection between the two can be further tightened by rotating the locking nut 74. At the same time, the mother protective cover 4 and the daughter protective cover 5 are also equipped with semi-circular sealing rubber heads 75 at both ends. These sealing rubber heads 75 are used to seal the mother protective cover 4 and the daughter protective cover 5. When the sub-protective covers 5 are combined, they fit together to form a continuous sealing surface, effectively preventing moisture, dust, and other impurities from entering the connection. To further enhance the stability of the connection, three-quarter circular grooves 15 are provided at both ends of the mother protective cover 4 and the sub-protective cover 5, and retaining rings 16 are movably installed on the side walls of the grooves 15. When the mother protective cover 4 and the sub-protective cover 5 are combined and locked, the retaining rings 16 can be inserted into the corresponding grooves 15 to form an additional fixing point, preventing them from loosening due to vibration or external force during long-term use. In addition, inserts 17 are provided on the side walls of the mother protective cover 4, while slots 18 that are compatible with inserts 17 are provided on the side walls of the sub-protective cover 5. When the mother protective cover 4 and the sub-protective cover 5 are combined, the inserts 17 are inserted into the slots 18 to form an additional connection point, further enhancing the connection strength. In this way, a tight connection and a sealed connection between the mother protective cover 4 and the sub-protective cover 5 are achieved.

[0042] By adopting the above technical solution, the problem that the existing ground wire clamps used in railway cable construction cannot achieve reinforced connection and sealing protection between the cable and the ground wire 3 is solved. This would lead to the connection between the cable and the ground wire 3 being eroded by moisture, dirt, corrosion and other external substances, resulting in unstable signal transmission or even cable failure.

[0043] Working principle: When in use, the connecting block 71, connecting head 72, locking block 73, and locking nut 74 firstly connect the female protective cover 4 and the female protective cover 5 tightly together, achieving a sealed connection between the female protective cover 4 and the female protective cover 5 and the connection between the cable 1 and the grounding wire 3. The sealing rubber head 75 ensures the sealing of the connection. The grounding wire 3 is placed inside the connecting pipe 61 and fixed by the compaction groove 63 and compaction screw 64 on the end cover 62. The movable setting of the compaction block 65 allows the grounding wire 3 to be firmly pressed, preventing it from loosening or falling off. At the same time, the setting of the sealing plug ring 66 ensures the sealing between the connecting pipe 61 and the grounding wire 3, preventing moisture or dust and other impurities from entering. In this way, the stability and sealing of the connection between the cable 1 side wall wiring opening 2 and the grounding wire 3 are ensured, effectively preventing the grounding wire 3 from loosening or falling off, as well as the corrosion of the connection by external impurities.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. Railway signal cable connection structure comprising a cable line (1), characterized in that: The side wall of the cable (1) is provided with a wiring opening (2), the side wall of the wiring opening (2) is provided with a grounding wire (3), the side wall of the cable (1) is provided with a female protective cover (4) and a sub protective cover (5), the side wall of the female protective cover (4) is provided with a grounding anti-separation sealing mechanism (6), and the female protective cover (4) and the sub protective cover (5) are provided with a sealing connection mechanism (7). The grounding anti-separation sealing mechanism (6) comprises a wiring pipe (61) provided on the side wall of the female protective cover (4), the wiring pipe (61) is internally provided with the grounding wire (3), one end of the wiring pipe (61) is threadedly connected with an end cover (62), one side of the end cover (62) is provided with a compaction groove (63), a plurality of compaction screws (64) are threadedly connected on the side wall of the end cover (62), the bottom of the compaction screw (64) is movably provided with a compaction block (65), the side wall of the compaction block (65) is in contact with the grounding wire (3), the side wall of the end cover (62) is provided with a sealing plug ring (66), and the two side walls of the sealing plug ring (66) are in contact with the wiring pipe (61) and the grounding wire (3) respectively.

2. A railway signal cable connection structure according to claim 1, characterised in that: The sealing connection mechanism (7) comprises a connecting block (71) provided at two ends of the female protective cover (4), the side wall of the connecting block (71) is provided with a connecting head (72), both ends of the sub protective cover (5) are provided with a locking block (73), the locking block (73) is movably connected with the connecting head (72), one end of the connecting head (72) is provided with a locking nut (74), both ends of the female protective cover (4) and the sub protective cover (5) are provided with a sealing rubber head (75), and the sealing rubber head (75) is provided in a semicircular shape.

3. A railway signal cable connection structure according to claim 1, characterised in that: The side wall of the wiring opening (2) is provided with two anti-separation covers (8), the anti-separation cover (8) is provided in a semicylindrical shape, the top of the two anti-separation covers (8) is threadedly connected with a locking ring (9), the side wall of the locking ring (9) is provided with a through hole (10), and the grounding wire (3) penetrates the middle part of the anti-separation cover (8).

4. A railway signal cable connection structure according to claim 1, characterized in that: The inner walls of the female protective cover (4) and the sub protective cover (5) are movably connected with a supporting block (11), the supporting block (11) is provided in a semicircular shape, and the side wall of the supporting block (11) is in contact with the cable (1).

5. A railway signal cable connection structure according to claim 4, characterised in that: The inner wall of the supporting block (11) is provided with an anti-skid block (12), and the side wall of the anti-skid block (12) is provided with an anti-skid tooth (13).

6. A railway signal cable connection structure according to claim 1, wherein: The side wall of the compaction block (65) is provided with a plurality of cones (14), and the cones (14) are in contact with the grounding wire (3).

7. A railway signal cable connection structure according to claim 1, wherein: Both ends of the female protective cover (4) and the sub protective cover (5) are provided with a clamping groove (15), the clamping groove (15) is provided in a three-quarter circular cross section, and the side wall of the clamping groove (15) is movably provided with a clamping ring (16).

8. A railway signal cable connection structure according to claim 1, wherein: The side wall of the female protective cover (4) is provided with an insertion strip (17), the side wall of the sub protective cover (5) is provided with an insertion groove (18), and the insertion strip (17) is matched with the insertion groove (18).

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