Folding disc-type suspension porcelain insulator steel foot and disc-type suspension porcelain insulator

Abstract

A folding disc-type suspension porcelain insulator steel foot and a disc-type suspension porcelain insulator, comprising: a folding structure comprising a plurality of folding rods and connecting pieces, each folding rod comprising first to fourth hinges and first to third guide rods; wherein the first guide rod is connected between the first hinge and the second hinge, the second guide rod is connected between the second hinge and the third hinge, and the third guide rod is connected between the third hinge and the fourth hinge; the connecting piece is located on the axial symmetry line of the folding rods and connected with the first hinges on the folding rods. And the steel foot main body forms a basic structure of the steel foot and is connected with the fourth hinges on the folding rods. During installation, the steel foot passes through the conical necking of the porcelain piece with a smaller radius and is expanded in the porcelain piece, so that the cement consumption is reduced, the overall stress condition of the porcelain insulator is optimized, and a more efficient, economical and reliable solution is provided for the porcelain insulator in a power transmission and transformation system.

Description

Technical Field

[0001] The invention relates to the field of electric equipment for power transmission lines, in particular to a foldable disc-type suspension porcelain insulator steel foot and a disc-type suspension porcelain insulator. Background Art

[0002] Disc-type suspension porcelain insulators are important equipment components of power transmission and transformation systems. They are widely used in power grid systems such as high-voltage transmission lines and substations, and play a role in mechanical support and power insulation for transmission conductors. Disc-type suspension porcelain insulators can be divided into two types: conical head and cylindrical head according to the shape of the porcelain parts. The conical head has a simple manufacturing process and excellent electrical properties. The internal space of the porcelain parts of the conical head insulator is large, and a large amount of cement adhesive is used. After long-term use, the cement adhesive will inevitably shrink, causing the mechanical properties of the insulator to deteriorate. The conical head disc-type suspension insulator itself has the advantage of high electrical strength, and it is also a structural design that is currently used more frequently for disc-type suspension porcelain insulators.

[0003] The diameter of the steel foot of the conical head disk type suspension insulator is generally limited by the conical shrinkage size of the porcelain part. The part of the steel foot placed in the porcelain part cannot fully fill the internal space of the porcelain part, which not only causes a large amount of cement adhesive to be used, but also makes it difficult to withstand large mechanical tension.

[0004] It should be noted that the information disclosed in the above background technology section is only used for understanding the background of the present application, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the invention

[0005] The main purpose of the present invention is to overcome the defects existing in the above-mentioned background technology and provide a foldable disc-type suspension porcelain insulator steel foot and a disc-type suspension porcelain insulator.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A foldable disc type suspension porcelain insulator steel foot, comprising:

[0008] A folding structure, comprising a plurality of folding rods and a connecting member, each folding rod comprising first to fourth hinges and first to third guide rods; wherein the first guide rod is connected between the first hinge and the second hinge, the second guide rod is connected between the second hinge and the third hinge, and the third guide rod is connected between the third hinge and the fourth hinge; the connecting member is located on the axisymmetric line of the plurality of folding rods, and connects the first hinges on each folding rod;

[0009] The steel leg main body constitutes the basic structure of the steel leg and is connected to the fourth hinge on each folding rod.

[0010] Further:

[0011] The folding structure includes 6 or more folding rods.

[0012] When the folding structure is in an unfolded state, the first guide rod and the second guide rod are in a horizontal state, and the third guide rod is in an inclined state with its upper end leaning toward the outside.

[0013] The second guide bar and the third guide bar have a wider dimension than the first guide bar.

[0014] A disc-type suspension porcelain insulator comprises a conical head type porcelain part and a folding disc-type suspension porcelain insulator steel foot. The folding structure of the folding disc-type suspension porcelain insulator steel foot is placed into the porcelain part through the conical shrinkage of the porcelain part in a folded state, and is fixed inside the porcelain part by the cement adhesive after being unfolded inside the porcelain part.

[0015] The present invention has the following beneficial effects:

[0016] The present invention proposes a foldable disc-type suspension porcelain insulator steel foot, which has an innovative foldable design. This design enables the steel foot to pass through the conical constriction of the porcelain part with a smaller radius during installation, and to unfold inside the porcelain part to expand the contact area. This design of the present invention significantly reduces the amount of cement adhesive used. The unfolding of the steel foot inside the porcelain part expands the contact area with the porcelain part, thereby reducing the dependence on cement adhesive. At the same time, it optimizes the overall stress condition of the porcelain insulator, allowing the product to withstand greater mechanical tension, and improves the mechanical properties and durability of the insulator. By reducing the use of cement adhesive, the present invention also helps to reduce the risk of insulator performance degradation caused by cement shrinkage, thereby improving the reliability and safety of the power transmission and transformation system. In short, the present invention, through its unique folding and unfolding mechanism, provides a more efficient, economical and reliable solution for disc-type suspension porcelain insulators used in power grid systems such as high-voltage transmission lines and substations.

[0017] Other beneficial effects of the embodiments of the present invention will be further described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of six folding rods included in the folding steel foot according to an embodiment of the present invention.

[0019] Figure 2 It is a side view of a single folding rod according to an embodiment of the present invention (showing the axisymmetric left part).

[0020] Figure 3 Before the folding steel foot of the embodiment of the present invention is placed into the interior of the porcelain piece, the single folding rod is in a completely folded state (the axially symmetrical left part is shown).

[0021] Figure 4After the folding steel foot of the embodiment of the present invention is placed inside the porcelain piece, the single folding rod is in a fully unfolded state (showing the axially symmetrical left part). DETAILED DESCRIPTION

[0022] The following is a detailed description of the embodiments of the present invention. It should be emphasized that the following description is only exemplary and is not intended to limit the scope and application of the present invention.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for fixing as well as for coupling or communication.

[0024] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] See also Figures 1 to 4The embodiment of the present invention provides a foldable disc-type suspension porcelain insulator steel foot, including: a folding structure, the folding structure is designed to enable the steel foot to pass through the conical neck of the porcelain part and unfold inside the porcelain part to expand the contact area; the folding structure includes a plurality of folding rods and a connecting member 5, each folding rod includes a first to a fourth hinge A, B, C, D and a first to a third guide rod 1, 2, 3, wherein the first guide rod 1 is connected between the first hinge A and the second hinge B, the second guide rod 2 is connected between the second hinge B and the third hinge C, and the third guide rod 3 is connected between the third hinge C and the fourth hinge D, and they are connected to each other in this way, each folding rod forms a plurality of foldable segments to achieve folding and unfolding actions; the connecting member 5 is located on the axial symmetry line of the plurality of folding rods, connecting the first hinge A on each folding rod; a steel foot body 4, constituting the basic structure of the steel foot, connecting the fourth hinge D on each folding rod. The porcelain insulator steel foot has the characteristic of being foldable. This innovative design enables it to pass through the conical neck of the porcelain part with a smaller radius during installation and unfold inside the porcelain part, thereby effectively reducing the amount of cement adhesive used. This folding and unfolding mechanism not only optimizes the overall stress condition of the porcelain insulator, but also significantly enhances the product's ability to withstand greater mechanical tension. By reducing the use of cement adhesive, the present invention directly solves the problem of decreased mechanical properties of insulators caused by cement shrinkage in traditional designs, while also reducing the burden on porcelain parts and improving the electrical performance and mechanical stability of the insulator. Therefore, the foldable disc-type suspension porcelain insulator steel foot of the present invention provides a more efficient, economical and reliable solution for porcelain insulators used in power grid systems such as high-voltage transmission lines and substations, which helps to improve the stability and safety of the power grid system.

[0027] like Figure 1 As shown, in a preferred embodiment, the folding structure includes 6 or more folding rods.

[0028] like Figure 2 and Figure 4 As shown, in a preferred embodiment, when the folding structure is in an unfolded state, the first guide rod 1 and the second guide rod 2 are in a horizontal state, and the third guide rod 3 is in an inclined state with its upper end leaning toward the outside.

[0029] like Figure 1 As shown, in a preferred embodiment, the second guide rod 2 and the third guide rod 3 have a wider dimension than the first guide rod 3 .

[0030] See also Figure 4An embodiment of the present invention provides a disc-type suspension porcelain insulator, comprising a conical head type porcelain part 6 and the folding disc-type suspension porcelain insulator steel foot. The folding structure of the folding disc-type suspension porcelain insulator steel foot is placed into the interior of the porcelain part through the conical shrinkage of the porcelain part 6 in a folded state, and is fixed to the interior of the porcelain part through the cement adhesive after being unfolded inside the porcelain part.

[0031] Specific embodiments of the present invention are further described below.

[0032] A foldable disc-type suspension porcelain insulator steel foot, the top of the steel foot adopts a folding structure, and the folding structure is composed of multiple folding rods, such as Figure 1 As shown, the number of folding rods can be 6 or more; Figure 2 As shown, each folding rod comprises four hinges A, B, C, D, and three guide rods between the hinges; on the axis of symmetry of the steel foot, there is a connecting piece 5 near the hinge A, connecting the hinges A on the six folding rods. Before the steel foot is placed in the porcelain part, it is in a folded state, and the overall radius is small so that it can be placed inside the porcelain part through the opening of the porcelain part, as shown in FIG. Figure 3 As shown; after being placed inside the porcelain piece, each folding rod can be unfolded, such as Figure 4 shown.

[0033] The foldable disc-type suspension porcelain insulator steel foot proposed by the present invention has the significant advantage that the steel foot can pass through the conical necking of the porcelain part with a smaller radius and expand inside the porcelain part, thereby reducing the amount of cement used and optimizing the overall stress condition of the porcelain insulator.

[0034] The foldable disc-type suspension porcelain insulator steel foot of the present invention optimizes the installation and stress conditions of the porcelain insulator without increasing the internal space load of the porcelain part through its unique folding and unfolding mechanism. This mechanism allows the steel foot to pass through the conical constriction of the porcelain part with a smaller radius during the installation process, and then unfold inside the porcelain part, thereby reducing the amount of cement adhesive used. This innovative design well addresses the problem of reduced mechanical properties of the insulator caused by the shrinkage of the cement adhesive in the traditional design. By reducing the amount of cement, the present invention not only reduces the burden on the porcelain part, but also improves the mechanical tensile bearing capacity of the product, so that the porcelain insulator can support the high-voltage transmission line more stably. In addition, this design also improves the electrical performance of the porcelain insulator, because the contact area between the steel foot and the porcelain part is increased, which helps to distribute the mechanical stress more evenly and reduce the risk of damage caused by local stress concentration. In general, the present invention provides a more efficient, economical and reliable solution for porcelain insulators in power transmission and transformation systems through its ingenious folding design, which can significantly improve the stability and safety of the power grid system.

[0035] The above content is a further detailed description of the present invention in combination with specific / preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, it can also make several substitutions or modifications to these described embodiments, and these substitutions or modifications should be regarded as belonging to the protection scope of the present invention. In the description of this specification, the description of the reference terms "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the absence of mutual contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and modifications can be made herein without departing from the scope of protection of the patent application.

Claims

1. A foldable disc type suspension porcelain insulator steel foot, characterized in that: include: A folding structure comprising a plurality of folding rods and connecting members, each folding rod comprising first to fourth hinges and first to third guide rods; The first guide rod is connected between the first hinge and the second hinge, the second guide rod is connected between the second hinge and the third hinge, and the third guide rod is connected between the third hinge and the fourth hinge; the connecting member is located on the axisymmetric line of the plurality of folding rods, and connects the first hinges on each folding rod; The steel leg main body constitutes the basic structure of the steel leg and is connected to the fourth hinge on each folding rod.

2. The foldable disc type suspension porcelain insulator steel foot according to claim 1, characterized in that: The folding structure includes 6 or more folding rods.

3. The foldable disc type suspension porcelain insulator steel foot according to claim 1 or 2, characterized in that: When the folding structure is in an unfolded state, the first guide rod and the second guide rod are in a horizontal state, and the third guide rod is in an inclined state with its upper end leaning toward the outside.

4. The foldable disc type suspension porcelain insulator steel foot according to any one of claims 1 to 3, characterized in that: The second guide bar and the third guide bar have a wider dimension than the first guide bar.

5. A disc-type suspension porcelain insulator, characterized in that: A porcelain part with a conical head and a foldable disc-type suspension porcelain insulator steel foot as described in any one of claims 1 to 4, wherein the folding structure of the foldable disc-type suspension porcelain insulator steel foot is placed into the interior of the porcelain part through the conical shrinkage of the porcelain part in a folded state, and is expanded inside the porcelain part and then fixed inside the porcelain part through the cement adhesive.

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