Insulator mounting structure and mounting method

Abstract

The application discloses an insulator mounting and reinforcing structure and a mounting method. The insulator mounting structure comprises a mounting frame arranged on an electric tower or a telegraph pole, a mounting rod arranged on the mounting frame, a mounting hole arranged on the insulator, and a gap between the mounting rod and the insulator, and a filling layer formed by injection molding at the gap. The application further discloses an insulator reinforcing structure for reinforcing the insulator mounting structure. The insulator reinforcing structure comprises a hook body arranged on the insulator to prevent the insulator from moving in a direction away from the mounting rod, and a connecting seat detachably or fixedly connected to the mounting frame. The application positions and supports the insulator by arranging the mounting hole on the insulator and arranging the mounting rod to extend into the mounting hole, and filling by injection molding at the gap between the mounting rod and the mounting hole. In addition, the hook body is arranged to reinforce the insulator, and the hook body and the mounting rod cooperate to form bottom lifting of the insulator and limit the extension direction of the mounting rod, thereby further increasing the stability of the insulator. In addition, the anti-thermal expansion and cold contraction structure can effectively prevent the loosening and falling risk of the injection molding material caused by thermal expansion and cold contraction.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to insulator mounting structures and mounting methods. Background Technology

[0002] Insulators are reliable "isolation walls" and "interruptors," ensuring that current is safely transmitted only on the conductors, preventing it from flowing to the ground or supporting structures. At the same time, they are also strong "supporters" and "fixers," firmly holding the conductors and equipment, withstanding the tests of various natural forces (wind, ice, self-weight, tension), and ensuring the stability of the line structure.

[0003] Insulators provide fixed support, but in actual use, there may be situations where the load increases, such as rainy or snowy weather. Excessive load can easily cause the insulator to fall, leading to danger. Summary of the Invention

[0004] To address the shortcomings of existing insulators in terms of load-bearing capacity, which cannot adapt to increasing loads, this invention provides an insulator installation structure and installation method.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: an insulator installation structure, including an installation frame set on a power tower or utility pole, an installation rod provided on the installation frame, an installation hole provided on the insulator, the installation rod extending into the installation hole and a gap being provided between the installation rod and the insulator, and a filling layer being formed by injection molding at the gap.

[0006] Preferably, the insulator is also provided with stepped insertion holes, which intersect with mounting holes. The insertion holes are equipped with structures to resist thermal expansion and contraction, including: The inner cylinder is cylindrical and has the same diameter as the insertion hole. It has a 1 / N annular groove on its side wall and a 1 / M annular insertion port at the root of one side of the groove, where N and M are both greater than 1. The outer cylinder is a circular cylinder that fits over the inner cylinder. It has a notch on its side wall, with arc-shaped sealing plates at both ends of the notch. Inside the notch is an arc-shaped fitting plate that fits into the bottom of the groove. Connecting plates are provided on both sides of the notch to connect the fitting plate to the notch. The connecting plates, fitting plates, two sealing plates, and the groove on one side of the insertion port form an adjustable receiving groove. When the inner and outer cylinders rotate relative to each other, the size of the receiving groove is adjusted.

[0007] Preferably, both the inner and outer cylinders are provided with spaced limiting strips at their ends. The limiting strips are bendable, and the gap between two adjacent limiting strips on the inner and outer cylinders is wider than the width of the limiting strips, so that the inner and outer cylinders can rotate within a small range after the limiting strips are bent.

[0008] Preferably, one side of the connecting plate is provided with a T-shaped injection groove. After injection molding, the injection groove is filled. When it shrinks, this part pulls the one side connecting plate and the outer cylinder to rotate slightly to avoid tearing of the injection molding material due to shrinkage.

[0009] Preferably, a collar is slidably provided on the mounting rod. The collar is a rigid single-layer structure or the collar includes a movable inner ring and an outer ring. The inner ring is a rigid single-layer structure, while the outer ring is an elastic pad. The outer diameter of the collar is smaller than the diameter of the mounting hole.

[0010] It also includes insulator reinforcement structures, which include: The hook is attached to the insulator to prevent the insulator from moving away from the mounting rod. The connector is detachably or fixedly connected to the mounting bracket.

[0011] Preferably, the inner wall of the hook is provided with a limiting structure that fits against the outer wall of the insulator, and the limiting structure limits the axial movement of the insulator.

[0012] Preferably, the limiting structure includes at least one limiting piece disposed on the inner wall of the hook body, the limiting piece extending into the gap of the side wall of the insulator to form a limiting position; the hook body includes at least two sets, each set including at least one hook, wherein the hook in one set hooks onto the smooth side wall of the insulator, and the hook in the other set hooks onto the uneven side wall of the insulator.

[0013] Preferably, the connecting seat includes at least two spaced and elastically positioned limiting legs. At least one limiting leg has a limiting hook at its end. The limiting leg is inserted into the mounting frame and fixed by hooking the mounting frame with the limiting hook. The mounting frame has a limiting boss for the limiting hook to abut against and limit. The limiting hook is used to limit the limiting leg to prevent it from falling off. The limiting boss restricts the limiting leg from sliding towards the mounting rod. The limiting direction of the limiting hook is not parallel to the limiting direction of the limiting boss. Alternatively, the connecting seat is a ring structure with elastic sides. The mounting frame has a limiting boss. During installation, the sides of the connecting seat deform outward so that the mounting frame and the limiting boss pass through the middle of the ring structure. After passing through, the connecting seat returns to its original position and abuts against the limiting boss to be limited.

[0014] The insulator installation method includes the following steps: S1, Glue injection: Install the anti-thermal expansion and contraction structure into the insertion hole and rotate it to make the receiving groove on it misalign with the installation hole to seal the inner end of the installation hole. Then slide the collar into the installation hole and finally inject glue into the gap between the collar and the wall of the installation hole. S2, Injection Molding: If the collar is a single-layer rigid structure, remove the collar when the glue to be injected is basically formed and no longer flows and has not completely solidified. If the collar is a double-layer structure, remove the inner ring after the glue has hardened and leave the elastic soft outer ring inside. Rotate the anti-thermal expansion and contraction structure to make the receiving groove and the mounting hole face each other. Then, inject and fill the gap formed by removing the collar. When filling, the gap and the receiving groove should be filled completely. When filling, ensure that the receiving groove has room to be increased or decreased. S3, Reinforcement: Hook the hook onto the insulator to lift it up and insert the limiting piece into the gap in the side wall of the insulator to form an axial limit. Then, the connecting seat is sleeved or inserted into the mounting bracket.

[0015] Compared with the prior art, the advantages of this invention are as follows: This application provides mounting holes on the insulator and a mounting rod that extends into the mounting holes, while injection molding fills the gap between the mounting rod and the mounting hole to limit and support the insulator; in addition, a hook body is provided to reinforce the insulator, which, after cooperating with the mounting rod, forms a bottom support for the insulator and limits the extension direction of the mounting rod, further increasing the stability of the insulator; furthermore, by providing a structure to resist thermal expansion and contraction, the risk of loosening and falling off of the injection molding material due to thermal expansion and contraction can be effectively prevented. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a side view of this application; Figure 2 This is a perspective view of the present application; Figure 3 This is an exploded view of this application; Figure 4 A three-dimensional view of the insulator reinforcement structure; Figure 5 A three-dimensional diagram of a structure resistant to thermal expansion and contraction; Figure 6 An exploded view of a structure designed to resist thermal expansion and contraction; In the diagram: 01, collar; 10, mounting bracket; 101, limiting boss; 20, insulator; 201, mounting hole; 202, insertion hole; 30, hook body; 301, connecting seat; 3011, limiting hook; 302, bent hook; 3021, limiting piece; 40, mounting rod; 50, anti-thermal expansion and contraction structure; 500, limiting strip; 501, inner cylinder; 5011, notch; 5012, insertion port; 502, outer cylinder; 5021, sealing plate; 5022, bonding plate; 5023, connecting plate; 50231, injection groove. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0019] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0020] This embodiment mainly describes the title of the insulator installation structure, as follows: Insulator installation structure, see reference Figure 1-3 and Figure 5-6 The system includes a mounting bracket 10 installed on a power tower or utility pole. The mounting bracket 10 has a mounting rod 40, and the insulator 20 has a mounting hole 201. The mounting rod 40 extends into the mounting hole 201, and there is a gap between the mounting rod 40 and the insulator 20. A filling layer is formed by injection molding at the gap. Due to the special material of the insulator 20, it is impossible to create screw holes or other structures. Therefore, this structure improves the support for the insulator 20 and prevents it from falling in situations such as icing.

[0021] Preferably, the insulator 20 is further provided with a stepped insertion hole 202, which intersects with the mounting hole 201. The insertion hole 202 is provided with a thermal expansion and contraction resistant structure 50, which includes: The inner cylinder 501 is cylindrical and has the same diameter as the insertion hole 202. It has a 1 / N annular groove on its side wall and a 1 / M annular insertion port 5012 at the root of one side of the groove, where N and M are both greater than 1. The outer cylinder 502 is a circular cylinder fitted over the inner cylinder 501. It has a notch on its side wall, with arc-shaped sealing plates 5021 at both ends. An arc-shaped fitting plate 5022, which fits into the bottom of a groove, is located inside the notch. Connecting plates 5023 on both sides of the notch connect the fitting plate 5022 to the notch. The connecting plates 5023, fitting plates 5022, two sealing plates 5021, and the groove on one side of the insertion port 5012 form an adjustable receiving groove. The size of the receiving groove is adjusted when the inner cylinder 501 and outer cylinder 502 rotate relative to each other. This design provides a buffer for thermal expansion and contraction; when heated and expanding, it compresses the two cylinders, causing them to rotate and increasing the volume of the receiving groove, and vice versa.

[0022] Preferably, both the inner cylinder 501 and the outer cylinder 502 have spaced limiting strips 500 at their ends. These limiting strips 500 are bendable, and the gap between two adjacent limiting strips 500 on the inner cylinder 501 and the outer cylinder 502 is wider than the width of the limiting strip 500 itself, allowing the inner cylinder 501 and the outer cylinder 502 to rotate within a small range after the limiting strip 500 is bent. The limiting strips 500 are used to circumferentially limit the inner cylinder 501 and the outer cylinder 502, and also to axially limit them, preventing them from falling out of the insertion hole 202.

[0023] Preferably, a T-shaped injection groove 50231 is provided on one side of the connecting plate 5023. After injection molding, the injection groove 50231 is filled. When it shrinks, this part pulls the one side of the connecting plate 5023 and the outer cylinder 502 to rotate slightly to avoid tearing of the injection molding material due to shrinkage. Example

[0024] This embodiment mainly describes the title of the insulator reinforcement structure, as follows: Insulator reinforcement structure, see reference Figure 1-4 It is used to reinforce the insulator mounting structure described in Example 1, including: The hook body 30 is hooked onto the insulator 20 to prevent the insulator 20 from moving in the direction of disengaging from the mounting rod 40; The connecting seat 301 is detachably or fixedly connected to the mounting bracket 10. Based on embodiment 1, this solution further improves the support of the insulator 20 by setting a reinforcement mechanism to support it.

[0025] Preferably, the inner wall of the hook body 30 is provided with a limiting structure that fits against the outer wall of the insulator 20, and the limiting structure limits the axial movement of the insulator 20. The limiting structure is used to limit the axial movement of the insulator 20.

[0026] Preferably, the limiting structure includes at least one limiting piece 3021 disposed on the inner wall of the hook body 30, the limiting piece 3021 extending into the gap of the side wall of the insulator 20 to form a limit; the hook body 30 includes at least two sets, each set including at least one hook 302, wherein the hook 302 of one set hooks onto the smooth side wall of the insulator 20, and the hook 302 of the other set hooks onto the uneven side wall of the insulator 20. This solution is a specific limiting structure.

[0027] Preferably, the connecting seat 301 includes at least two spaced and elastically positioned limiting legs. At least one limiting leg has a limiting hook 3011 at its end. The limiting leg is inserted into the mounting frame 10 and fixed by the limiting hook 3011. The mounting frame 10 has a limiting boss 101 for the limiting hook 3011 to abut against and limit its position. The limiting hook 3011 limits the limiting leg to prevent it from falling off. The limiting boss 101 restricts the limiting leg from sliding towards the mounting rod 40. The limiting direction of the limiting hook 3011 is not parallel to the limiting direction of the limiting boss 101. Alternatively, the connecting seat 301 has a ring structure with elastic sides. The mounting frame 10 has a limiting boss 101. During installation, the sides of the connecting seat 301 deform outwards, causing the mounting frame 10 and the limiting boss 101 to... It passes through the center of the annular structure, and after passing through, the connecting seat 301 resets and abuts against the limiting boss 101 to be limited. The above are two schemes for the connecting seat 301, both of which have the advantage of being easy to install and disassemble. Example

[0028] This embodiment mainly describes the installation method of the insulator mounting structure, as detailed below: For instructions on installing the lintel, please refer to [link / reference]. Figure 1-6 This embodiment is based on the content of Embodiments 1 and 2, and includes the following steps: S1, Glue injection: Install the anti-thermal expansion and contraction structure 50 into the insertion hole 202 and rotate it so that the receiving groove on it is misaligned with the mounting hole 201 to seal the inner end of the mounting hole 201. Then slide the collar 01 into the mounting hole 201. Finally, inject glue into the gap between the collar 01 and the hole wall of the mounting hole 201. S2, Injection Molding: If the collar 01 is a single-layer rigid structure, remove the collar 01 when the glue to be injected is basically formed and no longer flows and has not completely solidified. If the collar 01 is a double-layer structure, remove the inner ring after the glue has hardened and leave the elastic soft outer ring inside. Rotate the anti-thermal expansion and contraction structure 50 so that the receiving groove is opposite to the mounting hole 201. Then, inject and fill the gap formed by removing the collar 01. When filling, the gap and the receiving groove should be filled completely. When filling, ensure that the receiving groove has room to be enlarged or reduced. This step forms at least one layer of glue protection or a double protection of one layer of glue and one layer of elastic soft pad. This protection mainly serves to buffer and reduce the impact of thermal expansion and contraction. S3, Reinforcement: Hook the hook 30 onto the insulator 20 to form a support and insert the limiting piece 3021 into the gap of the side wall of the insulator 20 to form an axial limit. Then, the connecting seat 301 is sleeved or inserted onto the mounting bracket 10.

[0029] In addition, when installing the anti-thermal expansion and contraction structure 50, insert it first, and then bend the limiting strip 500 and attach it to the stepped surface of the insertion hole 202.

[0030] The main functions of this embodiment are twofold. Firstly, due to the difficulty in creating irregularly shaped cavities inside the insulator 20, two holes are created to allow the injection-molded plastic to extend to both sides, forming an anti-detachment structure. Secondly, to reduce the impact of thermal expansion and contraction, two mutually rotating cylinders are installed inside the insulator 20, allowing for adaptive adjustment through their self-adaptive rotation. The above solutions are based on the premise that it is impossible to create screw holes and irregularly shaped grooves in the insulator 20.

[0031] The above provides a detailed description of the insulator installation structure and installation method provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the present invention and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An insulator mounting structure, comprising a mounting bracket installed on a power tower or utility pole, characterized in that, The mounting bracket is equipped with a mounting rod, and the insulator is equipped with a mounting hole. The mounting rod extends into the mounting hole and there is a gap between the mounting rod and the insulator. A filling layer is formed by injection molding at the gap. The insulator is also provided with stepped insertion holes, which intersect with mounting holes. The insertion holes are equipped with structures to resist thermal expansion and contraction, including: The inner cylinder is cylindrical and has the same diameter as the insertion hole. It has a 1 / N annular groove on its side wall and a 1 / M annular insertion port at the root of one side of the groove, where N and M are both greater than 1. The outer cylinder is a circular cylinder that fits over the inner cylinder. It has a notch on its side wall, and arc-shaped sealing plates at both ends of the notch. An arc-shaped fitting plate that fits into the bottom of the groove is located inside the notch. Connecting plates are located on both sides of the notch to connect the fitting plate to the notch. The connecting plates, fitting plates, two sealing plates, and the groove on one side of the insertion port form an adjustable receiving groove. When the inner and outer cylinders rotate relative to each other, the size of the receiving groove is adjusted. One side connecting plate is provided with a T-shaped injection groove. After injection, the injection groove is filled. When it shrinks, this part pulls the one side connecting plate and the outer cylinder to rotate slightly to avoid tearing of the injection plastic due to shrinkage.

2. The insulator mounting structure according to claim 1, characterized in that, Both the inner and outer cylinders have spaced limiting strips at their ends. These limiting strips are bendable, and the gap between two adjacent limiting strips on the inner and outer cylinders is wider than the width of the limiting strips, allowing the inner and outer cylinders to rotate within a small range after the limiting strips are bent.

3. The insulator mounting structure according to claim 1, characterized in that, A collar is slidably provided on the mounting rod. The collar is a rigid single-layer structure or includes a movable inner ring and an outer ring. The inner ring is a rigid single-layer structure, while the outer ring is an elastic pad. The outer diameter of the collar is smaller than the diameter of the mounting hole.

4. The insulator mounting structure according to claim 3, characterized in that, It also includes insulator reinforcement structures, which include: The hook is attached to the insulator to prevent the insulator from moving away from the mounting rod. The connector is detachably or fixedly connected to the mounting bracket.

5. The insulator mounting structure according to claim 4, characterized in that, The inner side wall of the hook is provided with a limiting structure that fits against the outer wall of the insulator, and the limiting structure limits the axial movement of the insulator.

6. The insulator mounting structure according to claim 4, characterized in that, The limiting structure includes at least one limiting piece disposed on the inner wall of the hook body, the limiting piece extending into the gap of the side wall of the insulator to form a limiting position; the hook body includes at least two sets, each set including at least one hook, one set of hooks hooking onto the smooth side wall of the insulator, and the other set of hooks hooking onto the uneven side wall of the insulator.

7. The insulator mounting structure according to claim 6, characterized in that, The connecting seat includes at least two spaced and elastically positioned limiting legs. At least one limiting leg has a limiting hook at its end. The limiting leg is inserted into the mounting frame and fixed by hooking the mounting frame with the limiting hook. The mounting frame has a limiting boss for the limiting hook to abut against and limit. The limiting hook is used to limit the limiting leg to prevent it from falling off. The limiting boss restricts the limiting leg from sliding towards the mounting rod. The limiting direction of the limiting hook is not parallel to the limiting direction of the limiting boss. Alternatively, the connecting seat is a ring structure with elastic sides. The mounting frame has a limiting boss. During installation, the sides of the connecting seat deform outward so that the mounting frame and the limiting boss pass through the middle of the ring structure. After passing through, the connecting seat returns to its original position and abuts against the limiting boss to be limited.

8. An installation method for an insulator mounting structure as described in claim 7, characterized in that, Includes the following steps, S1, Glue injection: Install the anti-thermal expansion and contraction structure into the insertion hole and rotate it to make the receiving groove on it misalign with the installation hole to seal the inner end of the installation hole. Then slide the collar into the installation hole and finally inject glue into the gap between the collar and the wall of the installation hole. S2, Injection Molding: If the collar is a single-layer rigid structure, remove the collar when the glue to be injected is basically formed and no longer flows and has not completely solidified. If the collar is a double-layer structure, remove the inner ring after the glue has hardened and leave the elastic soft outer ring inside. Rotate the anti-thermal expansion and contraction structure to make the receiving groove and the mounting hole face each other. Then, inject and fill the gap formed by removing the collar. When filling, the gap and the receiving groove should be filled completely. When filling, ensure that the receiving groove has room to be increased or decreased. S3, Reinforcement: Hook the hook onto the insulator to lift it up and insert the limiting piece into the gap in the side wall of the insulator to form an axial limit. Then, the connecting seat is sleeved or inserted into the mounting bracket.

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