Line column type composite insulator

Abstract

The utility model relates to the technical field of power transmission, in particular to a line column type composite insulator, which comprises a core column, mounting seats are symmetrically arranged at two ends of the core column, an umbrella sleeve is sleeved on the outer side of the middle of the core column, and ferrules are movably sleeved outside two ends, close to the umbrella sleeve, of the core column; the two sides of the bottom end of the ferrule are fixedly connected with a wind blocking flat plate through swing arms. The core column, the sleeve ring, the swing arm, the supporting piece, the arc-shaped protective cover and the wind blocking flat plate are used in cooperation, the resistance of the arc-shaped protective cover is smaller than that of the wind blocking flat plate, so that the wind blocking flat plate can be blown by wind to turn over, and the arc-shaped protective cover can turn over in the opposite direction till the upper end of the arc-shaped protective cover faces the wind. Therefore, the arc-shaped protective cover can adjust the angle in real time according to the wind direction to protect the composite insulator, and compared with an existing composite insulator of which the angle of the protective cover needs to be manually adjusted by a worker, the device is higher in flexibility in use and can be automatically adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission, in particular to a line post type composite insulator. Background Art

[0002] Line post composite insulators are a specific type of composite insulator used in power transmission and distribution lines. They are usually used to support and insulate power conductors while withstanding high voltage and external environmental influences.

[0003] For example, a high-reliability supporting line column composite insulator disclosed in the authorization announcement number CN217061612U includes an umbrella sleeve and a core rod, the outer surface of the core rod is sleeved with an umbrella sleeve, the outer surface of the core rod is provided with auxiliary rings near the two ends of the fixed sleeve, the surface of the auxiliary ring is inserted with a threaded column, and the side surface of the auxiliary ring is embedded with a folding protective cover. The beneficial effect of adopting the above technical solution is: through the folding protective cover, the body of the composite insulator can be effectively protected by the folding protective cover, and the protection range of the folding protective cover can be adjusted as needed, so as to block wind and rain from different directions.

[0004] The above device has a simple structure and reasonable design, can meet the needs of users, and has great promotion value;

[0005] Although the above patent utilizes a foldable protective cover to effectively protect the body of the composite insulator, and the angle of the protective cover can be adjusted, the change in wind direction is usually irregular. Since the wind direction may change at any time, although the above patent allows power workers to manually adjust the angle of the protective cover, it cannot match it in real time according to the change in wind direction. It is also impossible for power workers to wait for changes in wind direction to adjust the angle of the protective cover anytime and anywhere. Utility Model Content

[0006] The purpose of the utility model is to provide a line post type composite insulator to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] Line post composite insulator, including

[0009] A core column, wherein mounting seats are symmetrically arranged at both ends of the core column, an umbrella sleeve is sleeved on the outer side of the middle part of the core column, and both ends of the core column close to the umbrella sleeve are movably sleeved with ferrules;

[0010] The two sides of the bottom end of the collar are fixedly connected with windshield plates through swing arms, the two sides of the top end of the collar are fixedly connected with support members, and an arc-shaped shield is arranged between the upper ends of the two support members.

[0011] Preferably, a fixed block and a movable block are respectively fixedly connected to both sides of the bottom end of the middle part of the arc-shaped shield, the fixed block is fixedly connected to the top end of the left support member by bolts, and the movable block is movably connected to the top end of the right support member by a rotating shaft;

[0012] Preferably, a pair of blocking rods are symmetrically arranged at both ends of one side of the two mounting seats close to the stem, and the outsides of the four blocking rods are covered with rubber sleeves;

[0013] Preferably, the inner angle of the blocking rods symmetrically arranged at both ends of one side of the mounting seat is 90° to 110°;

[0014] Preferably, a counterweight block is fixedly connected to the lower surface of the middle portion of the bottom end of the windshield plate;

[0015] Preferably, the counterweight is made of ceramic or concrete.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The line column composite insulator is used in conjunction with a core column, a ferrule, a swing arm, a support, an arc-shaped shield and a windshield plate. Since the resistance of the arc-shaped shield is less than that of the windshield plate, the windshield plate will be blown over by the wind, while the arc-shaped shield will be turned in the opposite direction until the upper end of the arc-shaped shield faces the wind. In this way, the arc-shaped shield can adjust the angle in real time according to the wind direction to protect the composite insulator. Compared with the existing composite insulator that requires workers to manually adjust the angle of the shield, this device is more flexible when used and can be adjusted automatically.

[0018] 2. The line column composite insulator is used in conjunction with a mounting base, a barrier rod, a support and an arc-shaped shield. When the arc-shaped shield flips to one side due to wind force, the two support members will move toward the barrier rod on the same side and abut against the surface of the barrier rod. The barrier rod can limit the swing angle of the arc-shaped shield so that the arc-shaped shield can only swing within a range of 90° to 110° around the upper end of the umbrella cover, thereby preventing the arc-shaped shield from swinging too far and causing frequent collisions with the wires supported on the insulator, causing damage to the wires and affecting later power safety. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the arc-shaped shield of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the barrier rod of the utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the counterweight block of the utility model.

[0023] In the figure: 1. core column; 2. mounting seat; 3. umbrella cover; 4. ring; 5. swing arm; 6. windshield plate; 7. support member; 8. arc-shaped shield; 9. fixed block; 10. movable block; 11. bolt; 12. rotating shaft; 13. stop rod; 14. counterweight block. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0026] The line column type composite insulator comprises a core column 1, mounting seats 2 are symmetrically arranged at both ends of the core column 1, an umbrella sleeve 3 is sleeved on the outer side of the middle part of the core column 1, and both ends of the core column 1 close to the umbrella sleeve 3 are movably sleeved with ferrules 4; both sides of the bottom end of the ferrule 4 are fixedly connected with windshield plates 6 through swing arms 5, and both sides of the top end of the ferrule 4 are fixedly connected with support members 7, and an arc-shaped shield 8 is arranged between the upper ends of the two support members 7;

[0027] In this embodiment, the device is a ferrule 4 movably mounted on the outer sides of the two ends of the core column 1, a windshield plate 6 is arranged at the bottom end of the ferrule 4, and an arc-shaped protective cover 8 is arranged at the top end of the ferrule 4. Since the structure of the arc-shaped protective cover 8 is an arc, it will produce smaller resistance, while the structure of the windshield plate 6 is a flat plate, it will produce larger resistance. When the wind blows the arc-shaped protective cover 8 and the windshield plate 6 at the same time, since the resistance of the arc-shaped protective cover 8 is less than the resistance of the windshield plate 6, the windshield plate 6 will be blown by the wind and flipped, while the arc-shaped protective cover 8 will flip in the opposite direction until the upper end of the arc-shaped protective cover 8 faces the wind, so that the arc-shaped protective cover 8 can adjust the angle in real time according to the wind direction to protect the composite insulator.

[0028] like Figure 2 As shown, a fixed block 9 and a movable block 10 are respectively fixedly connected to both sides of the middle bottom end of the arc-shaped shield 8, the fixed block 9 is fixedly connected to the top end of the left support member 7 by a bolt 11, and the movable block 10 is movably connected to the top end of the right support member 7 by a rotating shaft 12;

[0029] In this embodiment, the device sets up a movable structure between the arc-shaped shield 8 and the two support members 7, wherein the fixed block 9 is fixedly connected to the support member 7 on the left side by a bolt 11, and the movable block 10 is movably connected to the support member 7 on the right side by a rotating shaft 12. When it is necessary to support the wire through this device, the bolt 11 is removed, and then the arc-shaped shield 8 is flipped to the other side to open, so that there is no obstruction directly above the umbrella cover 3, which is more convenient to operate when wiring.

[0030] like Figure 1 and Figure 3 As shown, a pair of blocking rods 13 are symmetrically arranged at both ends of one side of the two mounting seats 2 close to the stem 1, and the outsides of the four blocking rods 13 are covered with rubber sleeves. The inner angles of the blocking rods 13 symmetrically arranged at both ends of one side of the mounting seat 2 are 90° to 110°;

[0031] In this embodiment, the device has baffles 13 symmetrically arranged at both ends of one side of the mounting base 2. When the arc-shaped shield 8 flips to one side due to the influence of wind, the two support members 7 will move toward the baffle 13 on the same side and abut against the surface of the baffle 13. The baffle 13 can limit the swing angle of the arc-shaped shield 8, so that the arc-shaped shield 8 can only swing within a range of 90° to 110° around the upper end of the umbrella cover 3, thereby preventing the arc-shaped shield 8 from swinging too far and causing frequent collisions with the wires supported on the insulators, causing damage to the wires and affecting the subsequent power safety.

[0032] like Figure 1 and Figure 4 As shown, a counterweight block 14 is fixedly connected to the lower surface of the middle portion of the bottom end of the windshield plate 6, and the counterweight block 14 is made of ceramic or concrete;

[0033] In this embodiment, the counterweight block 14 installed at the bottom end of the windshield plate 6 is used for counterweighting, so that the windshield plate 6 automatically controls the arc shield 8 to reset to a vertical angle in the absence of wind, so that the arc shield 8 can provide protection from just above the top of the umbrella cover 3.

[0034] Working principle: when the wind blows the arc-shaped shield 8 and the windshield plate 6 at the same time, because the resistance of the arc-shaped shield 8 is smaller than the resistance of the windshield plate 6, the windshield plate 6 will be blown over by the wind, and the arc-shaped shield 8 will be turned in the opposite direction until the upper end of the arc-shaped shield 8 faces the wind; when it is necessary to support the wire through this device, the bolt 11 is removed, and then the arc-shaped shield 8 is turned over to the other side to make it possible to have no obstructions directly above the umbrella cover 3.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. Line post composite insulator, characterized by: include A core column (1), wherein mounting seats (2) are symmetrically arranged at both ends of the core column (1), an umbrella sleeve (3) is sleeved on the outer side of the middle part of the core column (1), and both ends of the core column (1) close to the umbrella sleeve (3) are movably sleeved with ferrules (4); Windshield plates (6) are fixedly connected to both sides of the bottom end of the collar (4) via swing arms (5), support members (7) are fixedly connected to both sides of the top end of the collar (4), and an arc-shaped protective cover (8) is provided between the upper ends of the two support members (7).

2. The line post composite insulator according to claim 1, characterized in that: A fixed block (9) and a movable block (10) are respectively fixedly connected to both sides of the bottom end of the middle portion of the arc-shaped shield (8); the fixed block (9) is fixedly connected to the top end of the left support member (7) via a bolt (11); and the movable block (10) is movably connected to the top end of the right support member (7) via a rotating shaft (12).

3. The line post composite insulator according to claim 1, characterized in that: A pair of blocking rods (13) are symmetrically arranged at both ends of one side of the two mounting seats (2) close to the core column (1), and the outsides of the four blocking rods (13) are covered with rubber sleeves.

4. The line post composite insulator according to claim 3, characterized in that: The inner angles of the blocking rods (13) symmetrically arranged at both ends of one side of the mounting seat (2) are 90° to 110°.

5. The line post composite insulator according to claim 1, characterized in that: A counterweight block (14) is fixedly connected to the lower surface of the middle portion of the bottom end of the windshield plate (6).

6. The line post composite insulator according to claim 5, characterized in that: The counterweight (14) is made of ceramic or concrete.

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