Cylindrical head bell jar alternating current disc type suspension porcelain insulator

Abstract

The utility model discloses a cylindrical head bell cover alternating disc type suspension type porcelain insulator relates to porcelain insulator technical field, including umbrella skirt porcelain cover, the top end of umbrella skirt porcelain cover is glued with steel cap, and the steel cap includes bell cover and cylindrical head body, and the cylindrical head body is close to umbrella skirt porcelain cover, the top of bell cover is provided with the clamping groove, the bottom end of umbrella skirt porcelain cover is glued with the connecting rod, the sliding setting of connecting rod has the cover spare, the cover spare is sequentially including sliding section, soft section and butt joint section to the direction of being away from umbrella skirt porcelain cover. This cylindrical head bell cover alternating disc type suspension type porcelain insulator, through setting up cover spare, cylindrical head body and other structures, guarantee the stability of two adjacent suspension type porcelain insulators butt joint, and the cover spare is around the outside of connecting rod, fixed block and other structures, prevent the situation such as rust, corrosion, and do not affect two adjacent suspension type porcelain insulators to keep flexible connection state, improve the use efficiency of cylindrical head bell cover alternating disc type suspension type porcelain insulator.

Description

Technical Field

[0001] This utility model relates to the field of porcelain insulator technology, and in particular to a cylindrical bell-shaped AC disc suspension porcelain insulator. Background Technology

[0002] Suspension insulators are generally made of insulating components (such as porcelain or glass components) and metal fittings (such as steel feet, iron caps, flanges, etc.) glued together or mechanically clamped together. Insulators are widely used in power systems and are generally external insulators, operating under atmospheric conditions. Overhead transmission lines, power plants, substation busbars, and the external energized conductors of various electrical equipment all require insulator support to insulate them from the ground (or grounding objects) or other conductors with a potential difference. Insulators are generally made of porcelain. Existing insulators typically consist of a porcelain insulator component, a steel cap, and steel feet. The steel cap is usually fixed to the porcelain insulator component with cement or other adhesives. The steel feet are fixed to the lower part of the porcelain insulator component with cement or other adhesives. Adjacent insulators are connected by protrusions on the steel feet and slots on the steel caps, and secured with locking pins.

[0003] For example, the patent entitled "A Cylindrical-Headed Bell-Shaped AC Disc-Shaped Suspension Porcelain Insulator" (patent application number: CN201820005818.6) discloses a cylindrical-headed bell-shaped AC disc-shaped suspension porcelain insulator. A compression spring pops out the pin block, which engages with the pin groove at the bottom of the copper core. This adds a connection structure to the existing technology, thereby strengthening the connection strength of the insulator string and eliminating the reliance on a single locking pin for fastening the insulator string connection components. Furthermore, the combination of the compression spring and the baffle facilitates the installation of the suspension insulator, resulting in good performance for widespread application. However, in actual use, the connection between adjacent porcelain insulators lacks a protective structure, and metal components such as the compression spring are prone to rusting and corrosion due to long-term exposure to rain and other factors, affecting the service life and efficiency of the porcelain insulator.

[0004] Therefore, it is necessary to propose a cylindrical bell-shaped AC disc suspension porcelain insulator to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a cylindrical head bell-shaped AC disc suspension porcelain insulator to solve the problem that, in actual use, the connection between two adjacent porcelain insulators lacks a protective structure, and metal components such as compression springs are prone to rusting and corrosion due to long-term exposure to rain and other factors, thus affecting the service life and efficiency of the porcelain insulator.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cylindrical bell-shaped AC disc-type suspension porcelain insulator, including a skirt porcelain cover, the top of which is glued with a steel cap, the steel cap including a bell-shaped cover and a cylindrical head body, with the cylindrical head body close to the skirt porcelain cover, and the top of the bell-shaped cover is provided with a slot.

[0007] A connecting rod is glued to the bottom end of the umbrella-shaped ceramic cover;

[0008] A cover is slidably disposed on the connecting rod. The cover includes a sliding section, a flexible section and a docking section in sequence in the direction away from the umbrella skirt ceramic cover. The flexible section is fixedly connected between the sliding section and the docking section.

[0009] The sliding section is threaded with bolts, and the bottom of the slot is provided with threaded holes.

[0010] Preferably, the slot includes a narrow slot and a wide slot, the narrow slot and the wide slot are connected, and the wide slot is located between the narrow slot and the umbrella skirt ceramic cover.

[0011] Preferably, the bottom end of the connecting rod is integrally formed with a fixing block, and the diameter of the fixing block is larger than the diameter of the connecting rod.

[0012] Preferably, the diameter of the fixing block is smaller than the width of the wide groove.

[0013] Preferably, the diameter of the connecting rod is smaller than the width of the narrow slot.

[0014] Preferably, the cylindrical head body has a threaded groove on its exterior.

[0015] Preferably, the bottom end of the umbrella-shaped ceramic cover is provided with an AC disc body.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model ensures the stability of the connection between two adjacent suspension porcelain insulators by setting up structures such as a cover and a cylindrical head body. At the same time, the cover surrounds the outside of the connecting rod, fixing block and other structures to avoid rusting and corrosion caused by direct rainwater erosion, and does not affect the flexible connection between the two adjacent suspension porcelain insulators, thereby improving the efficiency of the cylindrical head bell-shaped AC disc suspension porcelain insulator.

[0018] 2. The structure includes bolts and threaded holes to prevent the cover from rotating freely and ensure stability during use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cylindrical head bell-shaped AC disc-shaped suspension porcelain insulator structure of this utility model.

[0020] Figure 2This is a schematic diagram illustrating the installation and use of the cylindrical head bell-shaped AC disc suspension porcelain insulator of this utility model.

[0021] Figure 3 This is a cross-sectional structural diagram of the cylindrical head bell-shaped AC disc-shaped suspension porcelain insulator of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the umbrella skirt ceramic cover and connecting rod of this utility model.

[0023] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0024] In the diagram: 1. Umbrella skirt ceramic cover; 2. AC panel body; 3. Connecting rod; 4. Fixing block; 5. Bell-shaped cover; 6. Slot; 601. Narrow slot; 602. Wide slot; 7. Threaded hole; 8. Cover; 801. Sliding section; 802. Flexible section; 803. Butt joint section; 9. Bolt; 10. Cylindrical head body. Detailed Implementation

[0025] This utility model provides, for example Figures 1-5 The cylindrical bell-shaped AC disc suspension porcelain insulator shown includes a skirt porcelain cover 1, and an AC disc body 2 is provided at the bottom end of the skirt porcelain cover 1. The skirt porcelain cover 1 and the AC disc body 2 are made of high-strength porcelain material, which ensures that the suspension porcelain insulator has good electrical insulation performance and can effectively prevent arc flashover.

[0026] The top of the umbrella-shaped ceramic cover 1 is glued with a steel cap, which includes a bell-shaped cover 5 and a cylindrical head body 10. The cylindrical head body 10 is close to the umbrella-shaped ceramic cover 1. The top of the bell-shaped cover 5 is provided with a slot 6. The slot 6 includes a narrow slot 601 and a wide slot 602, which are connected. The wide slot 602 is located between the narrow slot 601 and the umbrella-shaped ceramic cover 1. The diameter of the end of the bell-shaped cover 5 away from the cylindrical head body 10 is smaller than the diameter of the end close to the cylindrical head body 10.

[0027] Reference Figure 1 As shown, the narrow slot 601 penetrates the top and outer wall of the bell-shaped cover 5, and the wide slot 602 penetrates the outer wall of the bell-shaped cover 5, with the width of the wide slot 602 being greater than the width of the narrow slot 601.

[0028] The bottom end of the umbrella-shaped ceramic cover 1 is glued with a connecting rod 3, and the bottom end of the connecting rod 3 is integrally formed with a fixing block 4, the diameter of the fixing block 4 being larger than the diameter of the connecting rod 3.

[0029] Furthermore, the diameter of the fixing block 4 is smaller than the width of the wide groove 602, so that the fixing block 4 can be snapped into the interior of the wide groove 602.

[0030] The diameter of the connecting rod 3 is smaller than the width of the narrow groove 601, so that the connecting rod 3 can be snapped into the inside of the narrow groove 601.

[0031] When two adjacent suspension porcelain insulators are connected, the connecting rod 3 and fixing block 4 of one suspension porcelain insulator are brought close to the slot 6 of the other suspension porcelain insulator, wherein the fixing block 4 is engaged inside the wide slot 602 and the connecting rod 3 is engaged inside the narrow slot 601.

[0032] Considering that the connecting rod 3 is easily slipped when it is only connected to the inside of the wide slot 602 by the fixing block 4 and the inside of the narrow slot 601, in order to improve the stability of the connection, a cover 8 is slidably provided on the connecting rod 3. The cover 8 includes a sliding section 801, a flexible section 802 and a mating section 803 in sequence in the direction away from the umbrella skirt ceramic cover 1. The flexible section 802 is fixedly connected between the sliding section 801 and the mating section 803. The flexible section 802 can be made of, but is not limited to, fluororubber, which has excellent high temperature resistance, chemical corrosion resistance, ozone resistance and aging resistance. The flexible section 802 allows the sliding section 801 and the mating section 803 to swing relative to each other.

[0033] The cylindrical head body 10 has a threaded groove on its exterior.

[0034] Before the docking operation of two adjacent suspension porcelain insulators, the cover 8 moves toward the umbrella skirt porcelain cover 1, without affecting the docking of the connecting rod 3, fixing block 4 and other structures.

[0035] After the connecting rod 3, fixing block 4 and other structures are connected, the connecting section 803 is connected to the threaded groove on the outside of the cylindrical head body 10, and the cover 8 is rotated to complete the connection between the cover 8 and the cylindrical head body 10, ensuring the stability of the connection between two adjacent suspension porcelain insulators. At the same time, the cover 8 surrounds the outside of the connecting rod 3, fixing block 4 and other structures to prevent direct rainwater erosion and rusting or corrosion. The soft section 802 is provided so as not to affect the flexible connection between the two adjacent suspension porcelain insulators.

[0036] Both the sliding section 801 and the docking section 803 can be made of stainless steel, but are not limited to stainless steel, depending on the specific application.

[0037] The sliding section 801 is threaded with a bolt 9, and the bottom of the slot 6 is provided with a threaded hole 7. After the cover 8 is connected to the cylindrical head body 10, the bolt 9 is rotated so that the bolt 9 aligns with the threaded hole 7, and there is a gap between the bolt 9 and the outer wall of the fixing block 4, so as not to affect the swing of the connecting rod 3 and the fixing block 4. At the same time, the bolt 9 is provided to prevent the cover 8 from rotating at will and to ensure the stability of use.

[0038] By setting up structures such as cover 8 and cylindrical head body 10, the stability of the connection between two adjacent suspension porcelain insulators is ensured. At the same time, cover 8 surrounds the outside of structures such as connecting rod 3 and fixing block 4, avoiding direct rain erosion and rusting, and does not affect the flexible connection between the two adjacent suspension porcelain insulators.

Claims

1. A cylindrical bell-shaped AC disc suspension porcelain insulator, comprising a shed-skirt porcelain cover (1), characterized in that: The top of the umbrella skirt ceramic cover (1) is glued with a steel cap, which includes a bell-shaped cover (5) and a cylindrical head body (10), and the cylindrical head body (10) is close to the umbrella skirt ceramic cover (1). The top of the bell-shaped cover (5) is provided with a slot (6). The bottom end of the umbrella skirt ceramic cover (1) is glued with a connecting rod (3). A cover (8) is slidably disposed on the connecting rod (3). The cover (8) includes a sliding section (801), a soft section (802) and a docking section (803) in sequence in the direction away from the umbrella skirt ceramic cover (1). The soft section (802) is fixedly connected between the sliding section (801) and the docking section (803). The sliding section (801) is threaded with a bolt (9), and the bottom of the slot (6) is provided with a threaded hole (7).

2. The cylindrical head bell-shaped AC disc suspension porcelain insulator according to claim 1, characterized in that: The slot (6) includes a narrow slot (601) and a wide slot (602), the narrow slot (601) and the wide slot (602) are connected, and the wide slot (602) is located between the narrow slot (601) and the umbrella skirt ceramic cover (1).

3. The cylindrical head bell-shaped AC disc suspension porcelain insulator according to claim 2, characterized in that: The bottom end of the connecting rod (3) is integrally formed with a fixing block (4), and the diameter of the fixing block (4) is larger than the diameter of the connecting rod (3).

4. The cylindrical head bell-shaped AC disc suspension porcelain insulator according to claim 3, characterized in that: The diameter of the fixing block (4) is smaller than the width of the wide groove (602).

5. A cylindrical head bell-shaped AC disc suspension porcelain insulator according to claim 2, characterized in that: The diameter of the connecting rod (3) is smaller than the width of the narrow groove (601).

6. The cylindrical head bell-shaped AC disc suspension porcelain insulator according to claim 1, characterized in that: The cylindrical head body (10) has a threaded groove on its exterior.

7. A cylindrical head bell-shaped AC disc suspension porcelain insulator according to claim 1, characterized in that: The bottom end of the umbrella-shaped ceramic cover (1) is provided with an AC disc body (2).

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