Clamping direct-current porcelain insulator steel cap

Abstract

The utility model discloses a clamping direct current porcelain insulator steel cap, and relates to the technical field of basic electrical elements. A clamping direct current porcelain insulator steel cap comprises a porcelain piece, a limiting device is arranged on the porcelain piece, the limiting device comprises a first threaded rod, a steel foot and a sliding block, a sliding block groove is formed in the outer wall of the lower end of the first threaded rod, the lower end of the sliding block is fixedly connected with the upper surface of the steel foot, and a protective shell is fixedly connected to the outer wall of the lower end of the first threaded rod. A limiting block groove is formed in the outer wall of the lower surface of the protective shell, the limiting block is pushed to move upwards to drive a first reset spring to contract, meanwhile, the outer wall of the other end of the limiting block is made to lose contact with the outer wall of the sliding block, then the steel foot and the sliding block can be taken down from the first threaded rod by pulling the steel foot, and therefore the steel foot is convenient to disassemble; and the situation that workers need to disassemble the steel foot with the help of tools is avoided, the practicability and effectiveness of equipment are effectively improved, and meanwhile the disassembly efficiency of the steel foot is improved.

Description

Technical Field

[0001] This utility model relates to the field of basic electrical components technology, and in particular to a snap-fit ​​steel cap for DC porcelain insulators. Background Technology

[0002] Porcelain insulators are typically made of electrical ceramics. As a special type of insulating control, insulators can effectively increase creepage distance. A Chinese utility model patent, authorized publication number "CN216793400U", discloses a snap-fit ​​DC porcelain insulator steel cap. The porcelain component has a mounting hole in the middle of its side, and a connector is installed within the mounting hole. The connector includes a positioning cylinder. A positioning plate is located on the outer side of one end of the positioning cylinder, contacting the upper side of the porcelain component. The other end of the positioning cylinder is fixed with a mounting plate contacting the lower side of the porcelain component. An elastic connector is provided at the connection between the steel cap and the steel foot. The connector absorbs some of the stress generated when the line shakes due to elasticity. Simultaneously, the length of the steel foot in this insulator is adjustable. By adjusting the length of the steel foot, the distance between adjacent insulators can be adjusted, preventing the steel foot from slipping out of the steel cap and causing the insulator to detach during use.

[0003] The above technical solution incorporates an elastic connector at the junction of the steel cap and the steel foot. This connector absorbs some of the stress generated by line swaying. Furthermore, the length of the steel foot in this insulator is adjustable, allowing for the adjustment of the distance between adjacent insulators. This prevents the steel foot from slipping out of the steel cap and causing the insulator to detach during use. However, this technical solution still has certain drawbacks. For example, while adjusting the length of the steel foot allows for the adjustment of the distance between adjacent insulators and prevents the steel foot from slipping out of the steel cap and causing the insulator to detach, the steel foot requires maintenance and repair after prolonged use. This necessitates workers using tools to remove the steel foot from the equipment, increasing the workload and reducing the efficiency of maintenance and repair. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a snap-fit ​​DC porcelain insulator steel cap. This can solve the problem that the distance between adjacent insulators can be adjusted by adjusting the length of the steel foot, thus preventing the steel foot from slipping out of the steel cap and causing the insulator to fall off during use. However, when the steel foot needs to be maintained and repaired after long-term use, the staff needs to use tools to remove the steel foot from the equipment, which increases the workload of the staff and reduces the efficiency of the maintenance and repair of the steel foot.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a snap-fit ​​DC porcelain insulator steel cap, comprising a porcelain component, wherein a limiting device is provided on the porcelain component;

[0006] The limiting device includes a first threaded rod, a steel foot, and a sliding block. A sliding block groove is provided on the lower outer wall of the first threaded rod. The lower end of the sliding block is fixedly connected to the upper surface of the steel foot. A protective shell is fixedly connected to the lower outer wall of the first threaded rod.

[0007] The lower surface of the protective shell has a limit block groove, and a limit block is slidably connected inside the limit block groove. The upper outer wall of the sliding block is slidably connected to the inside of the sliding block groove. Three first reset springs are provided inside the limit block groove.

[0008] Preferably, the upper end of the sliding block is convex, and the lower outer wall of the limiting block is in contact with the outer wall of the sliding block;

[0009] The two ends of the three first reset springs are fixedly connected to the inner wall of the limit block groove and one end of the limit block, respectively.

[0010] Preferably, a positioning cylinder is slidably connected inside a groove formed on the upper surface of the ceramic piece;

[0011] The outer wall of the positioning cylinder is threaded with a positioning plate, and the lower surface of the positioning plate contacts the upper surface of the ceramic part.

[0012] Preferably, the lower end of the positioning cylinder is internally threaded with a second threaded rod;

[0013] The second threaded rod is fixedly connected to the end of the second threaded rod away from the positioning cylinder.

[0014] Preferably, the upper surface of the threaded cylinder contacts the lower surface of the ceramic part, and the upper end of the first threaded rod is threadedly connected to the lower inner wall of the threaded cylinder.

[0015] Among them, the outer wall of the positioning cylinder away from the ceramic part is slidably connected to an annular head.

[0016] Preferably, the outer wall of the end of the annular head away from the positioning cylinder is provided with a steel foot groove, and the end of the annular head near the positioning cylinder extends into the interior of the positioning cylinder;

[0017] The lower outer wall of the annular head is fitted with a second return spring, and the two ends of the second return spring are fixedly connected to the lower outer wall of the annular head and the inner wall of the positioning cylinder, respectively.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The steel cap of the DC porcelain insulator is connected by pushing the limit block upward, which causes the first reset spring to retract and at the same time causes the outer wall of the other end of the limit block to lose contact with the outer wall of the sliding block. Then, the steel foot can be pulled to remove the steel foot and the sliding block from the first threaded rod. This makes it easy to disassemble the steel foot and avoids the need for workers to use tools to disassemble it, effectively improving the practicality and effectiveness of the equipment, and at the same time improving the disassembly efficiency of the steel foot. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the steel foot of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the positioning cylinder of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the threaded cylinder of this utility model.

[0025] Reference numerals: 1. Ceramic component; 2. Positioning plate; 3. Steel foot groove; 4. Ring head; 5. Positioning cylinder; 6. Limiting block; 7. Sliding block groove; 8. Sliding block; 9. Protective shell; 10. First return spring; 11. Second return spring; 12. Steel foot; 13. First threaded rod; 14. Limiting block groove; 15. Threaded cylinder; 16. Second threaded rod. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a snap-fit ​​DC porcelain insulator steel cap, including a porcelain part 1;

[0031] A limit device is provided on ceramic component 1;

[0032] The limiting device includes a first threaded rod 13, a steel foot 12, and a sliding block 8. A sliding block groove 7 is provided on the lower outer wall of the first threaded rod 13. The lower end of the sliding block 8 is fixedly connected to the upper surface of the steel foot 12. A protective shell 9 is fixedly connected to the lower outer wall of the first threaded rod 13. A limiting block groove 14 is provided on the lower outer wall of the protective shell 9. The upper end of the sliding block 8 is convex. A limiting block 6 is slidably connected inside the limiting block groove 14. The upper outer wall of the sliding block 8 is slidably connected to the inside of the sliding block groove 7. The lower outer wall of the limiting block 6 is in contact with the outer wall of the sliding block 8. Three first return springs 10 are provided inside the limiting block groove 14. The two ends of the three first return springs 10 are fixedly connected to the inner wall of the limiting block groove 14 and one end of the limiting block 6, respectively.

[0033] The upper surface of the ceramic part 1 has a groove in which a positioning cylinder 5 is slidably connected. The outer wall of the positioning cylinder 5 is threadedly connected to a positioning plate 2. The lower surface of the positioning plate 2 is in contact with the upper surface of the ceramic part 1. The lower end of the positioning cylinder 5 is threadedly connected to a second threaded rod 16. The end of the second threaded rod 16 away from the positioning cylinder 5 is fixedly connected to a second threaded rod 16. The upper surface of the threaded cylinder 15 is in contact with the lower surface of the ceramic part 1. The upper end of the first threaded rod 13 is threadedly connected to the lower end of the inner wall of the threaded cylinder 15. The outer wall of the positioning cylinder 5 away from the ceramic part 1 is slidably connected to an annular head 4. The outer wall of the annular head 4 away from the positioning cylinder 5 has a steel foot groove 3. The end of the annular head 4 near the positioning cylinder 5 extends into the interior of the positioning cylinder 5. The lower end of the annular head 4 is sleeved with a second return spring 11. The two ends of the second return spring 11 are fixedly connected to the lower end of the annular head 4 and the inner wall of the positioning cylinder 5, respectively.

[0034] Furthermore, when using this device, first insert the positioning cylinder 5 into the groove on the upper surface of the ceramic part 1, then put the positioning plate 2 on the outer wall of the ceramic part 1 and rotate the positioning plate 2 so that the lower surface of the positioning plate 2 contacts the upper surface of the ceramic part 1. Next, connect the upper end of the threaded cylinder 15 to the lower end of the positioning cylinder 5 to complete the installation. Then, insert the outer wall of the other end of the steel foot 12 into the inside of the steel foot groove 3 to achieve the connection. Then, turn the first threaded rod 13 to adjust the length. Then, when it is necessary to remove the steel foot 12, push the limiting block 6 to move upward and drive the first reset spring 10 to retract, so that the outer wall of the other end of the limiting block 6 loses contact with the outer wall of the sliding block 8. Then, pull the steel foot 12 to remove the steel foot 12 and the sliding block 8 from the first threaded rod 13.

[0035] By pushing the limit block 6 upward, the first reset spring 10 contracts, causing the outer wall of the other end of the limit block 6 to lose contact with the outer wall of the sliding block 8. Then, by pulling the steel foot 12, the steel foot 12 and the sliding block 8 can be removed from the first threaded rod 13. This facilitates the disassembly of the steel foot 12, avoiding the need for workers to use tools to disassemble it, effectively improving the practicality and effectiveness of the equipment, and increasing the disassembly efficiency of the steel foot 12. By turning the first threaded rod 13 to rotate and adjust the length of the steel foot 12, the distance between adjacent insulators can be adjusted, facilitating the use of insulators and improving the flexibility of the equipment, thus making it easier for workers to adjust the steel foot 12.

[0036] Working principle: First, insert the positioning cylinder 5 into the groove on the upper surface of the ceramic part 1. Then, put the positioning plate 2 on the outer wall of the ceramic part 1 and rotate the positioning plate 2 so that the lower surface of the positioning plate 2 contacts the upper surface of the ceramic part 1. Next, connect the upper end of the threaded cylinder 15 to the lower end of the positioning cylinder 5 to complete the installation. Then, insert the outer wall of the other end of the steel foot 12 into the steel foot groove 3 to achieve connection. Then, turn the first threaded rod 13 to adjust the length. When it is necessary to remove the steel foot 12, push the limit block 6 to move upward, causing the first return spring 10 to retract, so that the outer wall of the other end of the limit block 6 loses contact with the outer wall of the sliding block 8. Then, pull the steel foot 12 to remove the steel foot 12 and the sliding block 8 from the first threaded rod 13.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A snap-fit ​​DC porcelain insulator steel cap, comprising a porcelain component (1), characterized in that: A limiting device is provided on the ceramic component (1); The limiting device includes a first threaded rod (13), a steel foot (12) and a sliding block (8). The lower end of the outer wall of the first threaded rod (13) is provided with a sliding block groove (7). The lower end of the sliding block (8) is fixedly connected to the upper surface of the steel foot (12). The lower end of the outer wall of the first threaded rod (13) is fixedly connected with a protective shell (9). Among them, the lower surface of the protective shell (9) has a limit block groove (14) on the outer wall, the limit block groove (14) is slidably connected to the limit block (6), the upper end of the sliding block (8) is slidably connected to the inside of the sliding block groove (7), and three first reset springs (10) are provided inside the limit block groove (14). The upper end of the sliding block (8) is convex, and the lower outer wall of the limiting block (6) is in contact with the outer wall of the sliding block (8). Among them, the two ends of the three first reset springs (10) are fixedly connected to the inner wall of the limiting block groove (14) and one end of the limiting block (6), respectively; Among them, a positioning cylinder (5) is slidably connected inside a groove on the upper surface of the ceramic part (1). The outer wall of the positioning cylinder (5) is threaded with a positioning plate (2), and the lower surface of the positioning plate (2) is in contact with the upper surface of the ceramic piece (1). The lower end of the positioning cylinder (5) is internally threaded with a second threaded rod (16). Among them, the end of the second threaded rod (16) away from the positioning cylinder (5) is fixedly connected to the second threaded rod (16). Among them, the upper surface of the threaded cylinder (15) is in contact with the lower surface of the ceramic part (1), and the upper end of the first threaded rod (13) is threadedly connected to the lower end inner wall of the threaded cylinder (15). Among them, the outer wall of the positioning cylinder (5) away from the ceramic piece (1) is slidably connected to an annular head (4). Among them, the outer wall of the end of the annular head (4) away from the positioning cylinder (5) is provided with a steel foot groove (3), and the end of the annular head (4) near the positioning cylinder (5) extends into the interior of the positioning cylinder (5); Among them, the lower outer wall of the annular head (4) is fitted with a second reset spring (11), and the two ends of the second reset spring (11) are fixedly connected to the lower outer wall of the annular head (4) and the inner wall of the positioning cylinder (5), respectively.

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