A power transmission line tension porcelain insulator

Abstract

The application discloses a power transmission line tension porcelain insulator and belongs to the technical field of insulators. The power transmission line tension porcelain insulator comprises a base, an installation shell with open sides arranged above the base, a lifting assembly for adjusting the height of the installation shell installed on the base, through holes arranged at the top end and the bottom end of the installation shell, a movable rod arranged in the installation shell and penetrating through the corresponding through hole at the upper end of the movable rod, an insulator body connected to the upper end of the movable rod, a limiting rod connected to the lower end of the movable rod, and a plurality of circular teeth evenly and equidistantly arranged on the side wall of the movable rod. The power transmission line tension porcelain insulator overcomes the defects of the prior art, installs and limits the insulator through the mutual cooperation between the installation shell, the insulator body, the first bidirectional screw rod, the gear, the threaded pipe, the threaded rod, the moving pipe, the spring, the moving rod and the limiting hole and other structures, can effectively prevent the insulator body from being offset from the central axis due to shaking during work, reduces the service life of the equipment, and thus improves the applicability of the device.

Description

Technical Field

[0001] This invention relates to the field of insulators, and more particularly to a tension porcelain insulator for power transmission lines. Background Technology

[0002] An insulator is a device installed between conductors at different potentials or between a conductor and a grounding component, capable of withstanding voltage and mechanical stress. Insulators come in many types and shapes. Although different types of insulators vary considerably in structure and appearance, they all consist of two main parts: insulating components and connecting hardware. An insulator is a special type of insulating control that plays a crucial role in overhead transmission lines. In the early days, insulators were mostly used on utility poles. Gradually, they evolved into the use of disc-shaped insulators hung at one end of high-voltage power line towers to increase creepage distance; these are typically made of glass or ceramic and are called insulators.

[0003] Currently, existing transmission line tension porcelain insulators suffer from uneven stress during installation because the steel feet are difficult to fix stably on the central axis of the insulator, causing the steel feet to become eccentric. This eccentricity leads to uneven stress on the insulator during use, resulting in insulator displacement and affecting the product's service life. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a tensioning porcelain insulator for power transmission lines, which overcomes the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tensioning porcelain insulator for transmission lines, comprising a base, a mounting shell with openings on both sides above the base, a lifting assembly for adjusting the height of the mounting shell mounted on the base, through holes at both the top and bottom of the mounting shell, a movable rod disposed inside the mounting shell, the upper end of the movable rod passing through the corresponding through hole, the upper end of the movable rod being connected to the insulator body, the lower end of the movable rod being connected to a limit rod, a plurality of circular teeth evenly and equidistantly mounted on the side wall of the movable rod, a first bidirectional lead screw rotatably connected to the inner side wall of the mounting shell, a gear being fixedly sleeved on the rod wall of the first bidirectional lead screw, the... The gear meshes with the circular teeth. An auxiliary clamping assembly is installed on the first bidirectional lead screw. A threaded tube is rotatably connected to the side wall of one side of the mounting shell. The threaded tube is connected to the first bidirectional lead screw via a pulley drive. The threaded tube passes through the corresponding side wall of the mounting shell. A threaded rod is threadedly connected inside the threaded tube. The other end of the threaded rod passes through the opening of the threaded tube and extends outward and is connected to a movable tube. A spring is connected to the bottom of the movable tube. The other end of the spring is connected to a movable rod. One end of the movable rod passes through the opening of the movable tube. A limiting hole is opened on the rod wall of the limiting rod, and the limiting hole corresponds to the position of the movable rod. The limiting hole matches the movable rod.

[0006] By adopting the above technical solution, during use, a vertically downward force is applied to the insulator body. This force causes the movable rod to move downwards. The downward movement of the movable rod drives a gear to rotate via a circular tooth, which in turn drives a first bidirectional lead screw to rotate. The rotation of the first bidirectional lead screw then drives a threaded tube to rotate via a pulley. The rotation of the threaded tube, through the threaded action, causes the threaded rod to move horizontally. This movement of the threaded rod then drives a moving tube to move, which in turn drives a moving rod. When the moving rod contacts the wall of the limiting rod, the movable rod continues to move downwards. The rod will retract into the moving tube. The movement of the moving rod will compress the spring, causing the spring to deform under the force. When the limiting hole on the limiting rod moves to the position of the moving rod, the spring will reset, and the spring will drive the moving rod to insert into the limiting hole, thus limiting the movement of the moving rod and preventing it from moving. When it is necessary to disassemble the insulator body, the moving rod can be removed from the limiting hole. By using the above structure to install and limit the insulator body, it can effectively prevent the central axis of the insulator body from shifting due to shaking during operation, thus reducing the service life of the equipment and improving the applicability of the device.

[0007] As a preferred embodiment of the present invention, the lifting assembly includes two symmetrically slidingly connected adjustment seats on the upper end of the base. The upper end of the adjustment seats is symmetrically hinged to the bottom end of the mounting shell with two connecting rods. The upper end of the base is rotatably connected to a second bidirectional lead screw, which is threadedly connected to the two adjustment seats.

[0008] By adopting the above technical solution, when it is necessary to adjust the height of the mounting shell, the second bidirectional lead screw is rotated. The operation of the second bidirectional lead screw will apply a force to the adjusting seat through the thread action. The two adjusting seats will move in opposite directions or in the horizontal direction due to the force. The movement of the adjusting seats will apply a force to the connecting rod. The connecting rod will drive the mounting shell to move in the vertical direction due to the force. Through the above structure, the height of the mounting shell can be adjusted to meet the needs under different conditions, thereby improving the practicality of the device.

[0009] As a preferred embodiment of the present invention, two sliding grooves are symmetrically opened on the upper end of the base, and a slider is slidably connected in the sliding groove. The upper end of the slider passes through the groove opening and extends upward and is connected to the corresponding adjustment seat.

[0010] By adopting the above technical solution, the slider limits the adjustment seat, thereby improving the stability of the adjustment seat during movement.

[0011] As a preferred embodiment of the present invention, a sliding rod is fixedly connected to the inner wall of the chute, the sliding rod passes through the slider, and the slider is slidably connected to the sliding rod.

[0012] By adopting the above technical solution, the slider is prevented from detaching from the groove.

[0013] As a preferred embodiment of the present invention, one end of the second bidirectional lead screw is connected to a rotating block, and the rotating block is provided with anti-slip texture.

[0014] By adopting the above technical solution, it is convenient for staff to rotate the second bidirectional lead screw.

[0015] As a preferred embodiment of the present invention, the auxiliary clamping assembly includes two clamping plates symmetrically arranged inside the mounting housing. The clamping plates are threadedly connected to a first bidirectional lead screw, and the two clamping plates are located on both sides of the movable rod.

[0016] By adopting the above technical solution, the rotation of the first bidirectional lead screw will also apply force to the clamping plate through the thread action. The two clamping plates will move in opposite directions in the horizontal direction due to the force, so that the clamping plates will abut against the movable rod, thereby further limiting the movable rod and preventing the movable rod from swaying left and right.

[0017] As a preferred embodiment of the present invention, a guide rod is connected to the inner sidewall of the mounting shell, the guide rod passes through two clamping plates, and the two clamping plates are slidably connected to the guide rod.

[0018] By adopting the above technical solution, the clamping plate is limited to prevent it from rotating.

[0019] As a preferred embodiment of the present invention, a connecting block is connected to one side wall of the movable rod, one end of the connecting block is connected to a pull rod, the other end of the pull rod passes through the side wall of the mounting shell and extends outward, and the pull rod is slidably connected to the side wall of the mounting shell.

[0020] By adopting the above technical solution, when it is necessary to remove the moving rod from the limiting hole, a horizontal force is applied to the pull rod. The pull rod is subjected to the force, which will drive the connecting block to move. The movement of the connecting block will drive the moving rod to move inside the moving tube. When the moving rod is disengaged from the limiting hole, a vertical upward force is applied to the movable rod to remove the movable rod from the mounting shell.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) This invention, by setting up a base, mounting shell, movable rod, insulator body, limiting rod, first bidirectional lead screw, gear, threaded tube, threaded rod, moving tube, spring, moving rod, and limiting hole, applies a vertically downward force to the insulator body, causing the movable rod to move downward. The downward movement of the movable rod drives the gear to rotate through the circular teeth, the rotation of the gear drives the first bidirectional lead screw to rotate, the rotation of the first bidirectional lead screw drives the threaded tube to rotate through the pulley, the rotation of the threaded tube drives the threaded rod to move horizontally through the thread action, the movement of the threaded rod drives the moving tube to move, and the movement of the moving tube drives the moving rod to move. When the moving rod and the limiting rod... When the rod wall comes into contact with the insulator, the movable rod continues to move downwards, causing the moving rod to retract into the moving tube. The movement of the moving rod compresses the spring, causing the spring to deform under the force. When the limiting hole on the limiting rod moves to the position of the moving rod, the spring resets, and the spring drives the moving rod to insert into the limiting hole, thus limiting the movement of the movable rod and preventing it from moving further. When it is necessary to disassemble the insulator body, the moving rod can be removed from the limiting hole. By using the above structure to install and limit the insulator body, it is possible to effectively prevent the central axis of the insulator body from shifting due to shaking during operation, thus reducing the service life of the equipment and improving the applicability of the device.

[0023] (2) By setting up structural domains such as adjustment seats, connecting rods, second bidirectional lead screws, sliders and slide rods, when it is necessary to adjust the height of the mounting shell, the second bidirectional lead screw is rotated. The operation of the second bidirectional lead screw will apply a force to the adjustment seats through the thread action. The two adjustment seats will move in opposite directions or in the horizontal direction due to the force. The movement of the adjustment seats will apply a force to the connecting rod. The connecting rod will drive the mounting shell to move in the vertical direction due to the force. Through the above structure, the height of the mounting shell can be adjusted to meet the needs under different conditions, thereby improving the practicality of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the mounting shell in this invention;

[0026] Figure 3 for Figure 1 Enlarged view of section A;

[0027] Figure 4 This is a schematic diagram of the gear working structure in this invention;

[0028] Figure 5 This is a schematic diagram of the movable rod structure in this invention;

[0029] Figure 6 This is a schematic diagram of the tie rod structure in this invention;

[0030] Figure 7 This is a schematic diagram of the internal structure of the moving tube in this invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Base; 2. Mounting shell; 3. Movable rod; 4. Insulator body; 5. Limiting rod; 6. First bidirectional lead screw; 7. Gear; 8. Threaded tube; 9. Threaded rod; 10. Moving tube; 11. Spring; 12. Moving rod; 13. Limiting hole; 14. Adjusting seat; 15. Connecting rod; 16. Second bidirectional lead screw; 17. Slider; 18. Slide rod; 19. Clamping plate; 20. Guide rod; 21. Connecting block; 22. Pull rod; 23. Circular tooth. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-3 A type of tension porcelain insulator for power transmission lines includes a base 1, with a mounting shell 2 having openings on both sides on top of the base 1. A lifting assembly for adjusting the height of the mounting shell 2 is mounted on the base 1. The lifting assembly includes two symmetrically slidably connected adjusting seats 14 at the upper end of the base 1. Two connecting rods 15 are symmetrically hinged to the upper end of the adjusting seats 14 and the bottom end of the mounting shell 2. A second bidirectional lead screw 16 is rotatably connected to the upper end of the base 1, and the second bidirectional lead screw 16 is threadedly connected to the two adjusting seats 14. One end of the second bidirectional lead screw 16 is connected to a rotating block, and the rotating block has anti-slip textures for easy... When the height of the mounting shell 2 needs to be adjusted, the operator rotates the second bidirectional lead screw 16. The operation of the second bidirectional lead screw 16 will apply a force to the adjusting seat 14 through the thread action. The two adjusting seats 14 will move horizontally towards or away from each other due to the force. The movement of the adjusting seats 14 will apply a force to the connecting rod 15. The connecting rod 15 will then drive the mounting shell 2 to move vertically. The height of the mounting shell 2 can be adjusted through the above structure to meet the needs under different conditions, thereby improving the practicality of the device.

[0035] Two symmetrical sliding grooves are provided on the upper end of the base 1. A slider 17 is slidably connected in the sliding groove. The upper end of the slider 17 passes through the groove opening and extends upward and is connected to the corresponding adjustment seat 14. The slider 17 limits the adjustment seat 14 and improves the stability of the adjustment seat 14 during movement. A sliding rod 18 is fixedly connected to the inner wall of the sliding groove. The sliding rod 18 passes through the slider 17 and the slider 17 is slidably connected to the sliding rod 18 to prevent the slider 17 from detaching from the sliding groove.

[0036] For details, please refer to Figure 2 , Figure 4 and Figure 5 The mounting shell 2 has through holes at both its top and bottom. A movable rod 3 is installed inside the mounting shell 2, with its upper end passing through the corresponding through hole. An insulator body 4 is fixedly connected to the upper end of the movable rod 3, and a limit rod 5 is fixedly connected to its lower end. Several circular teeth 23 are evenly spaced on the side wall of the movable rod 3. A first bidirectional lead screw 6 is rotatably connected to the inner side wall of the mounting shell 2. A gear 7 is fixedly sleeved on the wall of the first bidirectional lead screw 6, meshing with the circular teeth 23. An auxiliary clamping assembly is installed on the first bidirectional lead screw 6, including two clamping plates 19 symmetrically arranged inside the mounting shell 2. The clamping plates 19 are threadedly connected to the first bidirectional lead screw 6, and the two clamping plates 19 are located on both sides of the movable rod 3. The rotation of the first bidirectional lead screw 6 will apply a force to the clamping plates 19 through the thread action. The two clamping plates 19 will move in opposite directions in the horizontal direction due to the force, so that the clamping plates 19 abut against the movable rod 3, thereby further limiting the movable rod 3 and preventing the movable rod 3 from swaying left and right. A guide rod 20 is connected to the inner side wall of the mounting shell 2. The guide rod 20 is set through the two clamping plates 19, and the two clamping plates 19 are slidably connected to the guide rod 20, which limits the clamping plates 19 and prevents the clamping plates 19 from rotating.

[0037] For details, please refer to Figure 2 , Figure 4 , Figure 6 and Figure 7A threaded tube 8 is rotatably connected to the side wall of the mounting shell 2. The threaded tube 8 is connected to the first bidirectional lead screw 6 via a belt pulley. The threaded tube 8 passes through the corresponding side wall of the mounting shell 2. A threaded rod 9 is threadedly connected inside the threaded tube 8. The other end of the threaded rod 9 passes through the opening of the threaded tube 8 and extends outward and is connected to a movable tube 10. A spring 11 is connected to the bottom of the inner tube of the movable tube 10. The other end of the spring 11 is connected to a movable rod 12. One end of the movable rod 12 passes through the opening of the movable tube 10. A limit hole 13 is opened on the rod wall of the limiting rod 5, and the position of the limit hole corresponds to that of the movable rod 12. The limit hole 13 matches the movable rod 12. When in use, a vertical downward force is applied to the insulator body 4. The insulator body 4 will be driven by the force to move the movable rod 3 downward. The downward movement of the movable rod 3 will drive the gear 7 to rotate through the circular teeth 23. The rotation of the gear 7 will drive the first bidirectional lead screw 6 to rotate.

[0038] The rotation of the first bidirectional lead screw 6 drives the threaded tube 8 to rotate via the pulley. The rotation of the threaded tube 8 causes the threaded rod 9 to move horizontally through the thread action. The movement of the threaded rod 9 drives the moving tube 10 to move, which in turn drives the moving rod 12 to move. When the moving rod 12 contacts the wall of the limiting rod 5, the movable rod 3 continues to move downward, and the moving rod 12 retracts into the moving tube 10. The movement of the moving rod 12 compresses the spring 11, causing the spring 11 to deform under the applied force. When the limiting rod 5... When the limiting hole 13 moves to the position of the moving rod 12, the spring 11 will reset and drive the moving rod 12 to move so that the moving rod 12 is inserted into the limiting hole 13 to limit the movement of the moving rod 3 and prevent it from moving. When it is necessary to disassemble the insulator body 4, the moving rod 12 can be removed from the limiting hole 13. By using the above structure to install and limit the insulator body 4, it can effectively prevent the central axis of the insulator body 4 from shifting due to shaking during operation, thus reducing the service life of the equipment and improving the applicability of the device.

[0039] For details, please refer to Figure 2 and Figure 6 A connecting block 21 is connected to one side wall of the movable rod 12. One end of the connecting block 21 is connected to a pull rod 22. The other end of the pull rod 22 passes through the side wall of the mounting shell 2 and extends outward. The pull rod 22 is slidably connected to the side wall of the mounting shell 2. When it is necessary to remove the movable rod 12 from the limiting hole 13, a horizontal force is applied to the pull rod 22. The force on the pull rod 22 will drive the connecting block 21 to move. The movement of the connecting block 21 will drive the movable rod 12 to move inside the movable tube 10. When the movable rod 12 is disengaged from the limiting hole 13, a vertical upward force is applied to the movable rod 3 to remove the movable rod 3 from the mounting shell 2.

[0040] Working principle: During use, a vertically downward force is applied to the insulator body 4. This force causes the movable rod 3 to move downwards. The downward movement of the movable rod 3 drives the gear 7 to rotate via the circular teeth 23. The rotation of the gear 7 then drives the first bidirectional lead screw 6 to rotate. The rotation of the first bidirectional lead screw 6 drives the threaded tube 8 to rotate via the pulley. The rotation of the threaded tube 8 causes the threaded rod 9 to move horizontally via the threaded action. The movement of the threaded rod 9 drives the moving tube 10 to move, which in turn drives the moving rod 12 to move. When the moving rod 12 contacts the wall of the limiting rod 5, the movable rod 3 continues to move downwards, and the moving rod 12 retracts into the moving tube 10. The movement of rod 2 compresses spring 11, causing spring 11 to deform under the applied force. When the limiting hole 13 on the limiting rod 5 moves to the position of moving rod 12, spring 11 resets, causing moving rod 12 to insert into the limiting hole 13, thus limiting moving rod 3 and preventing it from moving. When it is necessary to disassemble insulator body 4, a horizontal force is applied to pull rod 22, causing connecting block 21 to move. The movement of connecting block 21 causes moving rod 12 to move within moving tube 10. When moving rod 12 disengages from limiting hole 13, a vertical upward force is applied to moving rod 3 to remove it from mounting housing 2.

[0041] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0042] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tensioning porcelain insulator for transmission lines, comprising a base (1), characterized in that: The base (1) is provided with a mounting shell (2) with openings on both sides. The base (1) is provided with a lifting assembly for adjusting the height of the mounting shell (2). The top and bottom of the mounting shell (2) are provided with through holes. The mounting shell (2) is provided with a movable rod (3). The upper end of the movable rod (3) passes through the corresponding through hole. The upper end of the movable rod (3) is connected to the insulator body (4). The lower end of the movable rod (3) is connected to the limit rod (5). Several circular teeth (23) are evenly and equidistantly installed on the side wall of the movable rod (3). A first bidirectional screw (6) is rotatably connected to the inner side wall of the mounting shell (2). A gear (7) is fixedly sleeved on the rod wall of the first bidirectional screw (6). The first bidirectional lead screw (6) is equipped with an auxiliary clamping assembly and a threaded tube (8) is rotatably connected to the side wall of the mounting shell (2). The threaded tube (8) is connected to the first bidirectional lead screw (6) via a belt pulley. The threaded tube (8) passes through the corresponding side wall of the mounting shell (2). A threaded rod (9) is threaded inside the threaded tube (8). The other end of the threaded rod (9) passes through the opening of the threaded tube (8) and extends outward and is connected to a moving tube (10). A spring (11) is connected to the bottom of the moving tube (10). The other end of the spring (11) is connected to a moving rod (12). One end of the moving rod (12) passes through the opening of the moving tube (10). The limiting rod (5) has a limiting hole (13) on its wall, and the limiting hole corresponds to the position of the moving rod (12). The limiting hole (13) matches the moving rod (12). The lifting assembly includes two symmetrically sliding adjustment seats (14) connected to the upper end of the base (1). The upper end of the adjustment seat (14) is symmetrically hinged to the bottom end of the mounting shell (2) with two connecting rods (15). The upper end of the base (1) is rotatably connected with a second bidirectional screw (16), and the second bidirectional screw (16) is threadedly connected to the two adjustment seats (14). The upper end of the base (1) has two symmetrically opened sliding grooves. A slider (17) is slidably connected in the sliding groove. The upper end of the slider (17) passes through the groove opening and extends upward and is connected to the corresponding... The adjustment seat (14) is fixedly connected to the inner wall of the groove. The sliding rod (18) passes through the slider (17) and the slider (17) is slidably connected to the sliding rod (18). The auxiliary clamping assembly includes two clamping plates (19) symmetrically arranged in the mounting shell (2). The clamping plates (19) are threadedly connected to the first bidirectional screw (6) and the two clamping plates (19) are located on both sides of the movable rod (3). A connecting block (21) is connected to the side wall of one side of the moving rod (12). One end of the connecting block (21) is connected to a pull rod (22). The other end of the pull rod (22) passes through the side wall of the mounting shell (2) and extends outward. The pull rod (22) is slidably connected to the side wall of the mounting shell (2).

2. The transmission line tensioning porcelain insulator according to claim 1, characterized in that: One end of the second bidirectional lead screw (16) is connected to a rotating block, and the rotating block is provided with anti-slip texture.

3. A transmission line tensioning porcelain insulator according to claim 1, characterized in that: A guide rod (20) is connected to the inner wall of the mounting shell (2). The guide rod (20) passes through two clamping plates (19), and the two clamping plates (19) are slidably connected to the guide rod (20).

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