A cable joint sealing device

Abstract

The utility model relates to cable joint technical field, especially a kind of cable joint sealing device, including first joint ring and second joint ring, the side of first joint ring and second joint ring is all fixed with insulating sleeve, the inside of two insulating sleeves is all fixedly connected with cable, the side of first joint ring and second joint ring is all respectively fixed with first connecting barrel and second connecting barrel, first connecting barrel is connected with second connecting barrel thread, first connecting barrel is set with first sealing ring groove on second joint ring, first sealing ring groove is provided with first sealing ring, the one end of second connecting barrel is fixedly provided with splicing ring, first joint ring is set with splicing slot, the two inner side walls of splicing slot are respectively set with second sealing ring groove and third sealing ring groove, second sealing ring groove and third sealing ring groove are respectively provided with second sealing ring and third sealing ring;The utility model constructs triple sealing structure, effectively blocks water, moisture and other medium invasion.

Description

Technical Field

[0001] This utility model relates to the field of cable joint technology, and more specifically to a cable joint sealing device. Background Technology

[0002] In fields such as power transmission and communications, cable joints are critical nodes for energy and signal transmission. They are exposed to complex environments such as soil, damp tunnels, and outdoor rain, and their sealing performance directly determines the stability of system operation. If the seal fails, water, moisture, dust, and corrosive substances can easily penetrate the joint, causing insulation aging, conductor oxidation and corrosion. In severe cases, this can lead to short circuits, equipment damage, and even fires or electric shocks, resulting in significant economic losses and safety hazards.

[0003] Currently, cable connectors in the industry generally use threaded connections for assembly and sealing. This involves the interlocking of the inner and outer threads of the connector shell, relying on the threaded mating surfaces to form a seal. However, this type of threaded connection has inherent defects, resulting in generally insufficient sealing performance: First, the thread structure has natural tooth profile gaps, and even with tight screwing, tiny channels can still form between the thread peaks and valleys, becoming pathways for water, moisture, and other media to intrude. Second, during the threading process, uneven operating force or deviations in thread machining accuracy can easily lead to loose contact between the mating surfaces, further widening the sealing gap. Third, after long-term use, threaded components are susceptible to environmental corrosion and vibration wear, resulting in thread corrosion and tooth profile deformation, which increases the original mating gap, continuously weakens the sealing performance, and ultimately leads to seal failure. Utility Model Content

[0004] The purpose of this utility model is to provide a cable joint sealing device that solves the defects of traditional threaded connections such as "leakage between the threads and poor fit" and prevents the intrusion of water, moisture and other media.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A cable joint sealing device includes a first joint ring and a second joint ring. Insulating sleeves are fixedly connected to the sides of the first and second joint rings that are away from each other. Cables are fixedly connected to the inner sides of both insulating sleeves. A first connecting cylinder and a second connecting cylinder are fixedly connected to the opposite sides of the first and second joint rings, respectively. The outer side of the first connecting cylinder has an external thread, and the inner side of the second connecting cylinder has an internal thread. The first connecting cylinder and the second connecting cylinder are threaded together. A first sealing ring groove is formed on the second joint ring corresponding to the first connecting cylinder, and a first sealing ring is disposed within the first sealing ring groove. A plug-in ring is fixedly disposed at the end of the second connecting cylinder near the first joint ring. A plug-in groove is formed on the first joint ring corresponding to the plug-in ring. A second sealing ring groove and a third sealing ring groove are formed on the two inner sidewalls of the plug-in groove, respectively. A second sealing ring and a third sealing ring are disposed within the second sealing ring groove and the third sealing ring groove, respectively.

[0007] Furthermore, the first connector ring has multiple first mounting through holes, and the second connector ring has multiple second mounting through holes. The second mounting through holes are corresponding to the first mounting through holes, and the first mounting through holes and the second mounting through holes are fixedly connected by bolts and nuts.

[0008] Furthermore, it also includes two rotating seats. A connecting groove is opened on the inner side of the end of the two insulating sleeves away from the first joint ring and the second joint ring. A fourth sealing ring is provided at the bottom of the connecting groove. An internal thread is provided on the side wall of the connecting groove. The two rotating seats are respectively sleeved on the two cables. An abutment cylinder is fixedly connected to one side of the rotating seat. The abutment cylinder is adapted to the connecting groove. An external thread is provided on the outer side wall of the abutment cylinder. The abutment cylinder is threadedly connected to the connecting groove.

[0009] Furthermore, the end of the plug ring away from the second connector ring is chamfered, and the opening of the plug groove is chamfered.

[0010] Furthermore, anti-slip textures are provided on the outer walls of the first and second connector rings.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This application constructs a triple sealing structure using a first sealing ring, a second sealing ring, and a third sealing ring. The first sealing ring corresponds to the mating surface of the first connecting cylinder and the second connector ring, sealing the gap at the root of the threaded connection. The second and third sealing rings are located on the two side walls of the insertion groove, sealing the mating gap between the insertion ring and the insertion groove. A three-dimensional seal is formed from the core area of ​​the threaded connection to the mating area, completely solving the defects of traditional threaded connections such as "leakage due to gaps in the thread profile and poor fit", and effectively preventing the intrusion of media such as water and moisture. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0016] Figure 4 for Figure 1 Enlarged diagram of point C in the middle.

[0017] 1. First connector ring; 101. Insertion groove; 102. Second sealing ring groove; 103. Third sealing ring groove; 104. First mounting through hole; 2. Second connector ring; 201. First sealing ring groove; 202. Second mounting through hole; 3. Insulating sleeve; 301. Connecting groove; 4. Cable; 5. First connecting cylinder; 6. Second connecting cylinder; 7. Rotating seat; 8. Abutment cylinder; 9. First sealing ring; 10. Insertion ring; 11. Second sealing ring; 12. Third sealing ring; 13. Fourth sealing ring. Detailed Implementation

[0018] like Figures 1 to 4As shown, a cable joint sealing device includes a first joint ring 1 and a second joint ring 2. Insulating sleeves 3 are fixedly connected to the sides of the first joint ring 1 and the second joint ring 2 that are away from each other. Cables 4 are fixedly connected to the inner sides of both insulating sleeves 3. A first connecting cylinder 5 and a second connecting cylinder 6 are fixedly connected to the opposite sides of the first joint ring 1 and the second joint ring 2, respectively. The outer side of the first connecting cylinder 5 is provided with external threads, and the inner side of the second connecting cylinder 6 is provided with internal threads. The first connecting cylinder 5 and the second connecting cylinder 6 are threadedly connected. The second connector ring 2 has a first sealing ring groove 201 corresponding to the first connecting cylinder 5. A first sealing ring 9 is provided in the first sealing ring groove 201. A plug-in ring 10 is fixedly provided at one end of the second connecting cylinder 6 near the first connector ring 1. A plug-in groove 101 is provided on the first connector ring 1 corresponding to the plug-in ring 10. A second sealing ring groove 102 and a third sealing ring groove 103 are respectively provided on the two inner side walls of the plug-in groove 101. A second sealing ring 11 and a third sealing ring 12 are respectively provided in the second sealing ring groove 102 and the third sealing ring groove 103.

[0019] The first connector ring 1 has multiple first mounting through holes 104, and the second connector ring 2 has multiple second mounting through holes 202. The second mounting through holes 202 are corresponding to the first mounting through holes 104, and the first mounting through holes 104 and the second mounting through holes 202 are fixedly connected by bolts and nuts. The first mounting through holes 104 and the second mounting through holes 202 are provided and connected by bolts. On the one hand, the threaded connection is prevented from loosening due to long-term vibration and thermal expansion and contraction, and the sealing gap is prevented from increasing due to loosening of the threads. On the other hand, the bolt tightening force can further compress each sealing ring, improve the fit between the sealing ring and the sealing surface, enhance the sealing effect, and facilitate the disassembly and maintenance of the device, thus taking into account both sealing performance and maintainability.

[0020] It also includes two rotating seats 7. The inner side of the two insulating sleeves 3 away from the first connector ring 1 and the second connector ring 2 is provided with a connecting groove 301. The bottom of the connecting groove 301 is provided with a fourth sealing ring 13. The side wall of the connecting groove 301 is provided with an internal thread. The two rotating seats 7 are respectively sleeved on the two cables 4. Abutting cylinder 8 is fixedly connected to one side of the rotating seat 7. The abutting cylinder 8 is adapted to the connecting groove 301. The outer side wall of the abutting cylinder 8 is provided with an external thread. The abutting cylinder 8 is threadedly connected to the connecting groove 301. When the abutting cylinder 8 is threadedly connected to the connecting groove 301, it will squeeze the fourth sealing ring 13, so that the fourth sealing ring 13 tightly fits the cable outer sheath and the inner wall of the connecting groove 301, sealing the gap between the insulating sleeve 3 and the cable 4, solving the problem that traditional joints only focus on the sealing of the connector ring connection and ignore the leakage of the gap between the cable and the sleeve.

[0021] The end of the plug ring 10 away from the second connector ring 2 is provided with a chamfer, and the groove opening of the plug groove 101 is provided with a chamfer.

[0022] The outer walls of the first connector ring 1 and the second connector ring 2 are provided with anti-slip textures; the anti-slip textures on the outer walls of the first connector ring 1 and the second connector ring 2 increase the friction between the operator's hand and the connector ring, making it easier to apply force when the thread is engaged, and avoiding slippage that leads to uneven operating force.

[0023] Working principle:

[0024] Tighten the abutment cylinder 8 to engage with the threaded groove 301 of the insulating sleeve 3, compressing the fourth sealing ring 13 to achieve a seal between the cable 4 and the insulating sleeve 3; insert the first sealing ring 9 into the first sealing ring groove 201 of the second connector ring 2, and insert the second sealing ring 11 and the third sealing ring 12 into the second sealing ring groove 102 and the third sealing ring groove 103 of the insertion groove 101 of the first connector ring 1, respectively; screw the first connecting cylinder 5 and the second connecting cylinder 6 together, and simultaneously insert the insertion ring 10 into the insertion groove 101 until the insertion ring 10 is fully inserted. Insert the plug into the slot 101. At this time, the first sealing ring 9 is squeezed and adhered to the first connecting cylinder 5 and the second connector ring 2. The second sealing ring 11 and the third sealing ring 13 are squeezed and adhered to the plug ring 10 and the inner wall of the plug slot 101, forming a triple core seal. Pass the bolt through the first mounting through hole 104 and the second mounting through hole 202, and tighten it with the nut to achieve double fixation of the first connector ring 1 and the second connector ring 2. After assembly, each sealing ring seals the thread gap, the plug gap, and the gap between the cable 4 and the insulating sleeve 3, forming an all-round seal.

[0025] This utility model connects the first connector ring 1 and the second connector ring 2 to the cable 4 and the insulating sleeve 3, achieving sealing of all critical gaps in the cable joint, completely solving the problem of insufficient sealing performance of traditional threaded connections, and can adapt to complex environments such as soil, damp tunnels, and outdoor rain.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cable joint sealing device, characterized in that: The system includes a first connector ring (1) and a second connector ring (2). Insulating sleeves (3) are fixedly connected to the sides of the first connector ring (1) and the second connector ring (2) that are away from each other. Cables (4) are fixedly connected to the inner sides of both insulating sleeves (3). A first connecting cylinder (5) and a second connecting cylinder (6) are fixedly connected to the opposite sides of the first connector ring (1) and the second connector ring (2), respectively. The outer side of the first connecting cylinder (5) is provided with external threads, and the inner side of the second connecting cylinder (6) is provided with internal threads. The first connecting cylinder (5) and the second connecting cylinder (6) are threaded together. The second connector ring (2) has... The first connecting cylinder (5) is provided with a first sealing ring groove (201), and a first sealing ring (9) is provided in the first sealing ring groove (201). The second connecting cylinder (6) is fixedly provided with a plug ring (10) at one end near the first connector ring (1). The first connector ring (1) is provided with a plug groove (101) corresponding to the plug ring (10). The two inner sidewalls of the plug groove (101) are respectively provided with a second sealing ring groove (102) and a third sealing ring groove (103). The second sealing ring groove (102) and the third sealing ring groove (103) are respectively provided with a second sealing ring (11) and a third sealing ring (12).

2. The cable joint sealing device as described in claim 1, characterized in that: The first connector ring (1) has a plurality of first mounting through holes (104), and the second connector ring (2) has a plurality of second mounting through holes (202). The second mounting through holes (202) are provided corresponding to the first mounting through holes (104), and the first mounting through holes (104) and the second mounting through holes (202) are fixedly connected by bolts and nuts.

3. The cable joint sealing device as described in claim 1, characterized in that: It also includes two rotating seats (7), and the inner side of the end of the two insulating sleeves (3) away from the first connector ring (1) and the second connector ring (2) is provided with a connecting groove (301). The bottom of the connecting groove (301) is provided with a fourth sealing ring (13). The side wall of the connecting groove (301) is provided with an internal thread. The two rotating seats (7) are respectively sleeved on the two cables (4). Abutting cylinder (8) is fixedly connected to one side of the rotating seat (7). The abutting cylinder (8) is adapted to the connecting groove (301). The outer side wall of the abutting cylinder (8) is provided with an external thread. The abutting cylinder (8) is threadedly connected to the connecting groove (301).

4. The cable joint sealing device as described in claim 1, characterized in that: The end of the plug ring (10) away from the second connector ring (2) is chamfered, and the groove of the plug groove (101) is chamfered.

5. The cable joint sealing device as described in claim 1, characterized in that: The outer walls of the first connector ring (1) and the second connector ring (2) are provided with anti-slip texture.

Images