Rigid suspension post insulator

Abstract

The utility model discloses a rigid suspension post insulator, which relates to the field of insulators and comprises a core rod, two ends of the core rod are connected with fittings through adhesives, the end parts of the fittings are fixedly provided with connecting flanges, the middle parts of the end parts of the core rod are fixedly provided with convex blocks, and the inner walls of the end parts of the fittings are fixedly provided with mounting rings. And four discharging holes which are annularly and uniformly distributed are fixedly formed in the structural layer of the mounting ring, the discharging holes simultaneously penetrate through the inner side face and the outer side face of the mounting ring, the protruding blocks are movably attached to the inner wall of the mounting ring, and the interior of the mounting ring is filled with cement containing an accelerator. According to the utility model, cement containing an accelerator is placed in the mounting ring, and then the convex block on the core rod is inserted into the mounting ring, so that the convex block and the mounting ring are quickly adhered, and the core rod and the hardware fitting are fixedly connected for the first time, so that the rigid suspension post insulator does not need to be demoulded after the adhesive is completely solidified; and the production efficiency of the rigid suspension post insulator is improved.

Description

Technical Field

[0001] The utility model relates to the field of insulators, in particular to a rigid suspension post insulator. Background Art

[0002] Post insulators are a special type of insulating control that can play an important role in overhead transmission lines, namely supporting the conductors and preventing current from returning to the ground. These two functions must be guaranteed. The insulators should not fail due to flashover breakdown caused by changes in environmental and electrical load conditions. Otherwise, the insulators will lose their function and damage the service and operating life of the entire line.

[0003] The existing patent publication number CN114005625A, entitled Rigid Suspension Post Insulator, states that due to the use of a special adhesive, this application has the advantage of a wide operating temperature range and can be used normally at temperatures from -40 degrees Celsius to 80 degrees Celsius.

[0004] However, when installing the hardware of the above-mentioned rigid suspension post insulator and the existing rigid suspension post insulator, the hardware is connected to the end of the core rod through an adhesive with cement as the main raw material, which has the following problems: first, the solidification time is long, which leads to a prolonged demoulding time of the rigid suspension post insulator, reducing the production efficiency of the rigid suspension post insulator; second, it is impossible to ensure that the hardware is installed vertically on the core rod. Therefore, it is necessary to propose a rigid suspension post insulator to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a rigid suspension post insulator to solve the above-mentioned problem that when installing the hardware of the existing rigid suspension post insulator, the hardware is connected to the end of the core rod by an adhesive with cement as the main raw material, which has a long solidification time, resulting in a prolonged demoulding time of the rigid suspension post insulator, reducing the production efficiency of the rigid suspension post insulator, and cannot ensure that the hardware is installed vertically on the core rod.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rigid suspension post insulator, comprising a core rod, both ends of the core rod are connected to hardware by adhesive, the end of the hardware is fixedly provided with a connecting flange, the middle part of the end of the core rod is fixedly provided with a protrusion, the inner wall of the end of the hardware is fixedly provided with a mounting ring, four annular evenly distributed discharge holes are fixedly provided in the structural layer of the mounting ring, the discharge holes simultaneously penetrate the inner and outer side surfaces of the mounting ring, the protrusions and the inner wall of the mounting ring are movably fitted, the interior of the mounting ring is filled with cement containing a quick-setting agent, when the core rod and the mounting ring are fitted with each other, the height of the bottom of the protrusion is equal to the height of the bottom of the discharge hole, and the adhesive is filled in the cavity between the hardware and the core rod;

[0007] A vertical component and a clamping component are provided between the core rod and the hardware.

[0008] Preferably, a plurality of equally spaced umbrella skirts are fixedly provided on the outer ring of the core rod, and the umbrella skirts are alternately distributed in a large and a small pattern, and small umbrella ridges are fixedly provided on the bottom of the edges of the umbrella skirts.

[0009] Preferably, the vertical component includes an extension rod fixedly arranged at the bottom edge of the core rod, and there are four extension rods, which are evenly distributed in a ring shape. A limiting rod is fixedly arranged at the bottom of the extension rod, and the limiting rod is movably fitted with the inner wall of the hardware.

[0010] Preferably, the clamping assembly includes a limiting part fixedly arranged on the inner wall of the hardware, and the limiting parts are provided with four, and the four limiting parts are evenly distributed in a ring shape, and the limiting part includes two symmetrically arranged guide plates, and the limiting rod is slidably arranged between the two guide plates, and the outer wall of the hardware is fixedly provided with four sleeve rods evenly distributed in a ring shape, and the interior of the sleeve rod is fixedly provided with a slide groove and an opening, and the inner walls of the slide groove and the opening are respectively slidably provided with a limiting plate and a sliding rod, and a spring is fixedly connected between the ends of the limiting plate and the slide groove, and a triangular plate is fixedly provided on the side of the sliding rod away from the limiting plate. In the initial state, the end of the triangular plate and the inner wall of the hardware are on the same vertical plane, and the ends of the limiting plate slide groove fit together.

[0011] Preferably, the core rod is an ERC high-temperature acid-resistant rod.

[0012] Preferably, the connecting flange is provided with four mounting holes evenly distributed in an annular shape, and the mounting holes and the sleeve rods are staggered.

[0013] The technical effects and advantages of this utility model are:

[0014] Put cement containing quick-setting agent into the installation ring, then insert the protrusion on the core rod into the installation ring, so that the protrusion and the installation ring are quickly bonded, thereby completing the first fixed connection between the core rod and the hardware. Therefore, there is no need to wait for the adhesive to completely solidify before demoulding the rigid suspension post insulator, thereby improving the production efficiency of the rigid suspension post insulator and solving the problem that when installing hardware in the existing rigid suspension post insulator, the hardware is connected to the end of the core rod by an adhesive with cement as the main raw material, which has a long solidification time, resulting in a prolonged demoulding time of the rigid suspension post insulator and a reduction in the production efficiency of the rigid suspension post insulator;

[0015] When the mandrel and the mounting ring are fitted together, the height of the bottom of the protrusion is equal to the height of the bottom of the discharge hole, so that the excess adhesive inside the mounting ring is discharged from the discharge hole, avoiding the problem of the protrusion not being installed in place, and then the hardware is installed in the position specified by the mandrel;

[0016] By installing four limit rods, the four sides of the hardware are limited, allowing the hardware to be installed vertically on the core rod, thereby improving the yield rate of rigid suspension post insulator production;

[0017] By installing the clamping assembly, when the climate changes or earthquake disasters occur, after the adhesive cracks, the four triangular plates support the hardware from four directions, thereby strengthening the stability of the connection between the hardware and the core rod and preventing the hardware from falling off the core rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the three-dimensional structure of a rigid suspension post insulator.

[0019] Figure 2 The utility model is a schematic diagram of a front cross-sectional structure of a rigid suspension post insulator.

[0020] Figure 3 For this utility model Figure 2 Enlarged schematic diagram of local structure.

[0021] Figure 4 This is a schematic diagram of the structure of the vertical component and the clamping component of the utility model.

[0022] Figure 5 This is a structural diagram of the utility model when the limit rod is located above the triangle plate.

[0023] Figure 6 This is a structural diagram of the utility model when the limit rod is located below the triangle plate.

[0024] Figure 7 This is a schematic diagram of the mounting ring and bump structure of the utility model.

[0025] In the figure: 1. core rod; 2. umbrella skirt; 3. hardware; 4. connecting flange; 5. small umbrella edge; 6. guide plate; 7. extension rod; 8. limit rod; 9. sleeve rod; 10. limit plate; 11. slide rod; 12. triangle plate; 13. spring; 14. bump; 15. mounting ring; 16. discharge hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The utility model provides Figure 1-Figure 7The rigid suspension post insulator shown includes a core rod 1, both ends of which are connected to hardware 3 by adhesive. The end of the hardware 3 is fixedly provided with a connecting flange 4. When installing the hardware 3, the hardware 3 is put on the end of the core rod 1, and then the adhesive with cement as the main raw material is filled in the cavity between the hardware 3 and the core rod 1. After waiting for solidification, the rigid suspension post insulator can be demolded.

[0028] Taking into account that when the hardware 3 is installed, the hardware 3 is connected to the end of the core rod 1 through an adhesive with cement as the main raw material, which has a long solidification time, resulting in prolonged demolding time of the rigid suspension post insulator, reducing the production efficiency of the rigid suspension post insulator, therefore, a protrusion 14 is fixedly provided in the middle of the end of the core rod 1, and a mounting ring 15 is fixedly provided on the inner wall of the end of the hardware 3. Four annular evenly distributed discharge holes 16 are fixedly provided in the structural layer of the mounting ring 15. The discharge holes 16 pass through the inner and outer side surfaces of the mounting ring 15 at the same time. The protrusion 14 and the inner wall of the mounting ring 15 are movably fitted, and the interior of the mounting ring 15 is filled with cement containing a quick-setting agent.

[0029] Specifically, cement containing a quick-setting agent is placed in the mounting ring 15, and then the protrusion 14 on the core rod 1 is inserted into the mounting ring 15, so that the protrusion 14 and the mounting ring 15 are quickly bonded together, thereby completing the first fixed connection between the core rod 1 and the hardware 3. There is no need to wait for the adhesive to completely solidify before demolding the rigid suspension post insulator, thereby improving the production efficiency of the rigid suspension post insulator and solving the problem that when the hardware 3 of the existing rigid suspension post insulator is installed, the hardware 3 is connected to the end of the core rod 1 by an adhesive with cement as the main raw material, and there is a long solidification time, which leads to an extension of the demolding time of the rigid suspension post insulator and reduces the production efficiency of the rigid suspension post insulator.

[0030] When the core rod 1 and the mounting ring 15 are fitted together, the height of the bottom of the protrusion 14 is equal to the height of the bottom of the discharge hole 16, so that the excess adhesive inside the mounting ring 15 is discharged from the discharge hole 16, avoiding the problem of the protrusion 14 not being installed in place, and then the hardware 3 is installed at the specified position of the core rod 1.

[0031] In addition, considering that the existing rigid suspension post insulator cannot ensure that the hardware 3 is installed vertically on the core rod 1 when installing the hardware 3, a vertical component is provided between the core rod 1 and the hardware 3. The vertical component includes an extension rod 7 fixedly provided at the bottom edge of the core rod 1. There are four extension rods 7, and the four extension rods 7 are evenly distributed in a ring shape. A limiting rod 8 is fixedly provided at the bottom of the extension rod 7. The limiting rod 8 and the inner wall of the hardware 3 are movably fitted. By installing the four limiting rods 8, the hardware 3 is limited on all sides, so that the hardware 3 can be installed vertically on the core rod 1, thereby improving the yield rate of the production of rigid suspension post insulators.

[0032] When climate changes and earthquake disasters occur, the adhesive has the problem of cracking, which reduces the connection stability between the hardware 3 and the core rod 1, and even causes the hardware 3 to fall off the core rod 1. Therefore, a clamping assembly is also provided between the core rod 1 and the hardware 3, and the clamping assembly includes a limiting part fixedly provided on the inner wall of the hardware 3, and the limiting part is provided with four, and the four limiting parts are evenly distributed in a ring shape. The limiting part includes two symmetrically arranged guide plates 6, and the limiting rod 8 is slidably provided between the two guide plates 6. The outer wall of the hardware 3 is fixedly provided with four sleeve rods 9 evenly distributed in a ring shape, and the interior of the sleeve rod 9 is fixedly provided with a slide groove and an opening, and the inner walls of the slide groove and the opening are respectively slidably provided with a limiting plate 10 and a sliding rod 11, and a spring 13 is fixedly connected between the end of the limiting plate 10 and the slide groove, and a triangular plate 12 is fixedly provided on the side of the sliding rod 11 away from the limiting plate 10. In the initial state, the end of the triangular plate 12 and the inner wall of the hardware 3 are on the same vertical plane, and the ends of the slide groove of the limiting plate 10 fit each other.

[0033] Specifically, the limit rod 8 is stuck between the two guide plates 6. As the limit rod 8 slides inside the hardware 3, the limit rod 8 presses the triangular plate 12, causing the triangular plate 12 to retract into the sleeve rod 9. When the limit rod 8 passes through the triangular plate 12, the spring 13 restores the elastic force, pushing the triangular plate 12 to slide out from the sleeve rod 9, thereby limiting the limit rod 8 between the triangular plate 12 and the hardware 3, and stuck between the two guide plates 6. Therefore, when climate changes and earthquake disasters occur, after the adhesive cracks, the four triangular plates 12 support the hardware 3 from four directions, thereby strengthening the stability of the connection between the hardware 3 and the core rod 1, and avoiding the problem of the hardware 3 falling off the core rod 1.

[0034] Furthermore, a number of equally spaced umbrella skirts 2 are fixedly provided at the outer ring of the core rod 1, and the umbrella skirts 2 are alternately distributed in a large and a small manner. This arrangement avoids the problem of water curtains being formed at the edges of the umbrella skirts 2, which easily causes flashover phenomena, and improves the insulation performance of the rigid suspension post insulator. In addition, small umbrella ridges 5 are fixedly provided at the bottoms of the edges of the umbrella skirts 2. The installation of the small umbrella ridges 5 facilitates the discharge of rainwater from the upper surface of the umbrella skirt 2, avoids the flow of rainwater along the lower surface of the umbrella skirt 2, and shortens the creepage distance, which easily causes the problem of flashover phenomena.

[0035] Furthermore, the core rod 1 is made of ERC high-temperature acid-resistant rod. This configuration improves the bending resistance of the rigid suspension post insulator, and has strong impact resistance, good shock resistance and anti-brittle fracture performance.

[0036] Furthermore, the connecting flange 4 is provided with four mounting holes evenly distributed in an annular shape, and the mounting holes and the sleeve rods 9 are staggered. This arrangement prevents the sleeve rods 9 from affecting the installation of the bolts on the connecting flange 4.

Claims

1. A rigid suspension post insulator, comprising a core rod (1), characterized in that: Both ends of the core rod (1) are connected to the metal fitting (3) through adhesive, the end of the metal fitting (3) is fixedly provided with a connecting flange (4), the middle part of the end of the core rod (1) is fixedly provided with a protrusion (14), the inner wall of the end of the metal fitting (3) is fixedly provided with a mounting ring (15), and four annular evenly distributed discharge holes (16) are fixedly provided in the structural layer of the mounting ring (15), and the discharge holes (16) simultaneously penetrate the inner and outer sides of the mounting ring (15), the protrusion (14) and the inner wall of the mounting ring (15) are movably fitted, and the interior of the mounting ring (15) is filled with cement containing a quick-setting agent. When the core rod (1) and the mounting ring (15) are fitted with each other, the height of the bottom of the protrusion (14) is equal to the height of the bottom of the discharge hole (16), and the adhesive is filled in the cavity between the metal fitting (3) and the core rod (1); A vertical component and a clamping component are provided between the core rod (1) and the hardware (3).

2. The rigid suspension post insulator according to claim 1, characterized in that: A plurality of equally spaced umbrella skirts (2) are fixedly provided on the outer ring of the core rod (1), and the plurality of umbrella skirts (2) are alternately distributed in a large and a small pattern. Small umbrella ridges (5) are fixedly provided at the bottom of the edges of the umbrella skirts (2).

3. The rigid suspension post insulator according to claim 1, characterized in that: The vertical assembly includes an extension rod (7) fixedly arranged at the bottom edge of the core rod (1), four extension rods (7) are provided, and the four extension rods (7) are evenly distributed in a ring shape, and a limiting rod (8) is fixedly arranged at the bottom of the extension rod (7), and the limiting rod (8) is movably fitted with the inner wall of the metal fitting (3).

4. The rigid suspension post insulator according to claim 3, characterized in that: The clamping assembly includes a limiting portion fixedly arranged on the inner wall of the hardware (3), and the limiting portions are provided in four numbers. The four limiting portions are evenly distributed in an annular shape. The limiting portion includes two symmetrically arranged guide plates (6). The limiting rod (8) is slidably arranged between the two guide plates (6). The outer wall of the hardware (3) is fixedly provided with four sleeve rods (9) evenly distributed in an annular shape. A slide groove and an opening are fixedly provided inside the sleeve rod (9). The inner walls of the slide groove and the opening are respectively slidably provided with a limiting plate (10) and a slide rod (11). A spring (13) is fixedly connected between the end of the limiting plate (10) and the slide groove. A triangular plate (12) is fixedly provided on the side of the slide rod (11) away from the limiting plate (10). In the initial state, the end of the triangular plate (12) and the inner wall of the hardware (3) are on the same vertical plane, and the ends of the slide groove of the limiting plate (10) fit each other.

5. The rigid suspension post insulator according to claim 3, characterized in that: The core rod (1) is an ERC high-temperature acid-resistant rod.

6. The rigid suspension post insulator according to claim 4, characterized in that: The connecting flange (4) is provided with four mounting holes evenly distributed in an annular shape, and the mounting holes and the sleeve rods (9) are arranged in a staggered manner.

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