Cable connection structure of mountainous overhead transmission line

Abstract

The utility model discloses a mountainous overhead transmission line cable connecting structure relates to electric power construction technical field. Including connecting mechanism and fixed establishment, connecting mechanism contains first protective housing, and the first protective housing one side articulates has the hinge, and the hinge one side fixedly connected with second protective housing, form protective cavity between first protective housing and second protective housing. The utility model discloses through the setting of connecting mechanism and fixed establishment, in the use process, first the first protective housing is opened with second protective housing through the hinge, exposes internal protective cavity, and the cable connector of waiting for connecting is put into the cavity, closes first protective housing and second protective housing, and is locked through the elastic card block and is clamped into the limiting block, and then receives the rotary ring of rotating, and drive screw pushes and clamps the ring radial contraction, and even clamps the cable, and the device can be closely wrapped the cable of different diameter, and can enhance the sealing property of protective cavity.

Description

Technical Field

[0001] This utility model relates to the field of power construction technology, specifically to a cable connection structure for overhead power transmission lines in mountainous areas. Background Technology

[0002] With the rapid economic development in mountainous areas, overhead transmission lines, as a key carrier of power transmission, are gradually extending their coverage to mountainous areas with complex terrain and harsh environments. Due to the characteristics of large terrain undulations, variable climate (such as rain and humidity, large temperature differences between day and night, and frequent strong winds) and dense vegetation, mountainous overhead lines have put forward stringent requirements on the protection reliability, installation convenience, and vibration resistance stability of cable connection structures. As the weakest link of the line, cable connection points are prone to insulation aging, poor contact, or even short circuit faults if not properly protected, which directly affects power transmission safety and operation and maintenance efficiency.

[0003] However, in the use of existing equipment, since the weight of the connection structure and the tension of the cable are entirely borne by the joint itself, long-term exposure to strong winds and cable galloping can easily lead to loosening of the joint or even failure of the electrical connection. Secondly, its sealing performance is often insufficient. In the humid and rainy mountain environment, moisture can easily penetrate, causing a decrease in the insulation performance of the joint and triggering a short circuit. Therefore, in response to this situation, we propose a more convenient and practical cable connection structure for overhead transmission lines in mountainous areas to meet the usage requirements. Utility Model Content

[0004] The purpose of this utility model is to provide a cable connection structure for overhead power transmission lines in mountainous areas to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable connection structure for overhead power transmission lines in mountainous areas, comprising a connection mechanism and a fixing mechanism for cable connection; the connection mechanism includes a first protective shell, a hinge is hinged to one side of the first protective shell, a second protective shell is fixedly connected to one side of the hinge, a protective cavity is formed between the first and second protective shells, and support pipes are fixedly connected to both sides of the first and second protective shells, with a sealing ring threaded onto the outer wall of the support pipe.

[0006] Furthermore, the top of the first and second protective shells are provided with through holes, and a screw is threaded into the through holes.

[0007] Furthermore, one end of the screw is rotatably connected to a clamping ring, and the other end is fixedly connected to a rotating ring.

[0008] Furthermore, an elastic locking block is fixedly connected to one side of the first protective shell, and a limiting block is fixedly connected to one side of the second protective shell, with the elastic locking block and the limiting block being compatible with each other.

[0009] Furthermore, the fixing mechanism includes a fixing plate, a fixing ring is fixedly connected to one side of the fixing plate, and a tightening ring is threadedly connected to the outer wall of the fixing ring.

[0010] Furthermore, a through hole is provided on the other side of the fixing plate, and a fixing tube is fixedly connected in the through hole. One end of the fixing tube is threadedly connected to a connecting tube, and one end of the connecting tube is threadedly connected to the support tube.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This overhead power transmission line cable connection structure in mountainous areas, through the setting of connection and fixing mechanisms, allows for the following process: First, the first and second protective shells are opened via hinges to expose the internal protective cavity. After the cable connector to be connected is placed into the cavity, the first and second protective shells are closed, and the elastic locking block engages with the limiting block to complete the locking. Subsequently, the rotating ring drives the screw to push the clamping ring to radially contract, evenly clamping the cable. Finally, the sealing ring is tightened to ensure a tight fit against the support tube, sealing the gap between the protective cavity and the outside. This device can tightly wrap cables of different diameters and enhance the sealing performance of the protective cavity. It is suitable for scenarios in mountainous areas where cables expand and contract due to temperature differences, preventing water ingress due to loosening. It is highly practical and suitable for widespread adoption.

[0012] At the same time, the fixing mechanism ensures that the cable fixing point fits tightly with the support structure, preventing the cable from swinging significantly due to insecure fixing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection mechanism structure of this utility model; Figure 3 This is a schematic diagram of the fixing mechanism of this utility model.

[0014] In the diagram: 1. Connecting mechanism; 101. First protective shell; 102. Hinge; 103. Second protective shell; 104. Support tube; 105. Sealing ring; 106. Screw; 107. Rotating ring; 108. Clamping ring; 109. Elastic locking block; 110. Limiting block; 2. Fixing mechanism; 201. Fixing plate; 202. Fixing ring; 203. Tightening ring; 204. Fixing tube; 205. Connecting tube. Detailed Implementation

[0015] 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.

[0016] During power construction, connection equipment is required. The connection equipment provided by this utility model is specifically used for cable connection operations during power construction. When using this equipment for connection operations, before closing the connection mechanism 1, it is necessary to ensure that the cable joint itself, as well as the inner walls of the first protective shell 101 and the second protective shell 103, are absolutely clean and dry. Any moisture, dust, or impurities will become hidden dangers for insulation failure in the future. It is important to check whether there are any signs of loosening in all threaded connection parts. Strong wind vibration in mountainous areas can easily lead to loosening of threads. Regularly observe whether there are any cracks, deformations, or overheating burn marks on the outer shell of the connection mechanism 1. If necessary, an infrared thermometer can be used to detect its operating temperature. Abnormal temperature rise is usually a sign of poor internal contact.

[0017] like Figures 1-3 As shown, this utility model provides a technical solution: a cable connection structure for an overhead power transmission line in mountainous areas, including a connection mechanism 1 and a fixing mechanism 2 for cable connection; the connection mechanism 1 includes a first protective shell 101, a hinge 102 is hinged to one side of the first protective shell 101, a second protective shell 103 is fixedly connected to one side of the hinge 102, a protective cavity is formed between the first protective shell 101 and the second protective shell 103, and a support tube 104 is fixedly connected to both sides of the first protective shell 101 and the second protective shell 103, and a sealing ring 105 is threadedly connected to the outer wall of the support tube 104.

[0018] like Figure 2 As shown, the top of the first protective shell 101 and the second protective shell 103 are provided with through holes, and a screw 106 is threadedly connected to the through holes. One end of the screw 106 is rotatably connected to a clamping ring 108, and the other end is fixedly connected to a rotating ring 107. An elastic locking block 109 is fixedly connected to one side of the first protective shell 101, and a limiting block 110 is fixedly connected to one side of the second protective shell 103. The elastic locking block 109 and the limiting block 110 are compatible with each other.

[0019] It should be noted that during use, the first protective shell 101 and the second protective shell 103 are first opened by hinge 102 to expose the internal protective cavity. After the cable connector to be connected is placed into the cavity, the first protective shell 101 and the second protective shell 103 are closed, and the elastic locking block 109 is engaged with the limiting block 110 to complete the locking. Then, the rotating ring 107 is rotated, and the drive screw 106 pushes the clamping ring 108 to radially contract, evenly clamping the cable. Finally, the sealing ring 105 is tightened to make it fit tightly against the support tube 104 to seal the gap between the protective cavity and the outside. When closed, the elastic locking block 109 automatically engages with the limiting block 110 to complete the locking. The protective shell can be quickly opened or closed without additional tools, which is convenient for daily inspection or fault repair.

[0020] like Figure 3 As shown, the fixing mechanism 2 includes a fixing plate 201. A fixing ring 202 is fixedly connected to one side of the fixing plate 201. A tightening ring 203 is threadedly connected to the outer wall of the fixing ring 202. A through hole is opened on the other side of the fixing plate 201. A fixing tube 204 is fixedly connected to the through hole. A connecting tube 205 is threadedly connected to one end of the fixing tube 204. One end of the connecting tube 205 is threadedly connected to the support tube 104.

[0021] It should be noted that during use, first connect the fixing plate 201 and the fixing point, pass the cable through the fixing pipe 204 and the fixing ring 202, then manually rotate the tightening ring 203 to make the fixing ring 202 clamp the cable, and finally manually rotate the connecting pipe 205 to connect the fixing pipe 204 and the support pipe 104. The fixing mechanism 2 ensures that the cable fixing point is tightly fitted with the support structure to avoid the cable swinging significantly due to insecure fixing.

[0022] During use, the first protective shell 101 and the second protective shell 103 are first opened by the hinge 102 to expose the internal protective cavity. After the cable connector to be connected is placed into the cavity, the first protective shell 101 and the second protective shell 103 are closed, and the elastic locking block 109 is engaged with the limiting block 110 to complete the locking. Then, the rotating ring 107 is rotated, and the driving screw 106 pushes the clamping ring 108 to radially contract, evenly clamping the cable. The sealing ring 105 is tightened to make it fit tightly against the support tube 104 to seal the gap between the protective cavity and the outside. At the same time, the cable is passed through the fixing tube 204 and the fixing ring 202. Then, the tightening ring 203 is manually rotated to make the fixing ring 202 clamp the cable. Finally, the connecting tube 205 is manually rotated to connect the fixing tube 204 and the support tube 104. This device can not only tightly wrap cables of different diameters, but also enhance the sealing of the protective cavity. It is suitable for cable thermal expansion and contraction scenarios caused by temperature differences in mountainous areas, and avoids water ingress due to loosening.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A cable connection structure for overhead power transmission lines in mountainous areas, characterized in that: Includes a connection mechanism (1) for cable connection and a fixing mechanism (2); The connecting mechanism (1) includes a first protective shell (101), a hinge (102) is hinged to one side of the first protective shell (101), a second protective shell (103) is fixedly connected to one side of the hinge (102), a protective cavity is formed between the first protective shell (101) and the second protective shell (103), and a support tube (104) is fixedly connected to both sides of the first protective shell (101) and the second protective shell (103), and a sealing ring (105) is threaded to the outer wall of the support tube (104).

2. The cable connection structure for an overhead power transmission line in a mountainous area according to claim 1, characterized in that: The first protective shell (101) and the second protective shell (103) have through holes at their tops, and a screw (106) is threaded into the through hole.

3. The cable connection structure for an overhead power transmission line in a mountainous area according to claim 2, characterized in that: One end of the screw (106) is rotatably connected to a clamping ring (108), and the other end is fixedly connected to a rotating ring (107).

4. The cable connection structure for an overhead power transmission line in a mountainous area according to claim 1, characterized in that: An elastic locking block (109) is fixedly connected to one side of the first protective shell (101), and a limiting block (110) is fixedly connected to one side of the second protective shell (103). The elastic locking block (109) and the limiting block (110) are compatible with each other.

5. The cable connection structure for an overhead power transmission line in a mountainous area according to claim 1, characterized in that: The fixing mechanism (2) includes a fixing plate (201), a fixing ring (202) is fixedly connected to one side of the fixing plate (201), and a tightening ring (203) is threadedly connected to the outer wall of the fixing ring (202).

6. The cable connection structure for an overhead power transmission line in a mountainous area according to claim 5, characterized in that: The fixed plate (201) has a through hole on the other side, and a fixed tube (204) is fixedly connected in the through hole. A connecting tube (205) is threaded to one end of the fixed tube (204), and a threaded connection is made between one end of the connecting tube (205) and the support tube (104).

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