A porcelain insulator with a structure for removing ice and snow and a method for producing the same

Abstract

This invention discloses a porcelain insulator with a snow and ice removal structure and its manufacturing method, relating to the field of insulators. It includes a lower insulating column, an upper insulator, a snow removal assembly, and a central connecting bolt. By setting an upper insulator with a size larger than the lower insulating column's skirt, it can effectively block the lower insulating structure, confining most of the snow accumulation to the surface of the upper insulator. Furthermore, the icicles formed at the edges of the upper insulator are difficult to connect with the snow and ice on the lower insulating column. Through a sliding connecting seat cooperating with the central connecting bolt fixed to the crossarm, the swaying kinetic energy of the transmission line is converted into the up-and-down sliding of the snow removal assembly relative to the upper insulator. This sliding motion drives multiple vibrating plates to periodically squeeze and scrape the surface of the upper insulator, causing the accumulated snow and ice to loosen, break, and slide off. This allows for timely de-icing without additional energy or manual intervention.

Description

Technical Field

[0001] This invention relates to the field of insulators, and in particular to a porcelain insulator with a snow and ice clearing structure and its manufacturing method. Background Technology

[0002] As a key insulating component in power transmission lines, porcelain insulators are prone to accumulating ice and snow on their surface in cold winter regions, especially under freezing rain and wet snow conditions.

[0003] Ice and snow accumulation can cause the following problems: Ice shards can cause bridging between insulator skirts, forming continuous conductive paths, reducing insulation strength, and leading to power grid faults such as flashover and tripping.

[0004] Secondly, the heavy load of ice and snow may exceed the mechanical strength design limit of insulators, especially for large and specially designed insulators, which poses a risk of breakage and damage.

[0005] Current technologies for dealing with insulator icing mainly rely on external intervention measures, such as mechanical de-icing and DC current melting. However, these methods require manual de-icing after icing, which cannot be carried out in a timely manner and has a certain degree of lag.

[0006] Therefore, we propose a porcelain insulator with a snow and ice clearing structure and its production method to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a porcelain insulator with a snow and ice clearing structure and a method for producing the same, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a porcelain insulator with a snow and ice clearing structure, comprising: The lower insulating post has an integrally formed mounting base at its bottom, and a threaded hole is provided at the top of the lower insulating post; The upper insulator is installed on top of the lower insulator post. Its size is larger than that of the lower insulator post's skirt. It has a connecting post integrally formed at its upper end and a reinforcing plate embedded inside. A snow removal assembly includes a sliding sleeve that is slidably fitted onto a connecting post and a plurality of vibrating plates arranged along the outer peripheral wall of the sliding sleeve, wherein the free ends of the plurality of vibrating plates are bent downward to form contact plates that contact the surface of the upper insulator. A central connecting bolt passes through the connecting post and is screwed into the threaded hole to fix the upper insulator to the lower insulating post.

[0009] Preferably, the sliding sleeve has an integrally formed connecting seat, which is sleeved on the upper end of the central connecting bolt and can slide axially relative to it.

[0010] Preferably, the peripheral wall of the connecting seat is threaded with a limiting screw, and the upper end of the central connecting bolt is provided with an axial sliding groove. The inner end of the limiting screw extends into the sliding groove, so that the connecting seat can slide along the central connecting bolt within the length range of the sliding groove.

[0011] Preferably, the top of the connector is integrally formed with a wire support frame, and a wire clamping plate is bolted to the top of the wire support frame.

[0012] Preferably, a breaking piece is integrally formed on the contact piece, and a through hole is formed on the vibrating piece corresponding to the breaking piece, with the breaking piece extending upward through the through hole.

[0013] Preferably, the upper insulator has at least one set of external reinforcing ribs integrally formed on its exterior.

[0014] Preferably, the external reinforcing ribs are multiple ribs disposed on the outer peripheral wall of the upper insulator, and ice-breaking components are formed at the ends near the edges. The cross-sectional shape of the reinforcing ribs is one of semi-circular, triangular or trapezoidal.

[0015] Preferably, a de-icing agent trough for holding de-icing agent is connected between adjacent external reinforcing ribs.

[0016] Preferably, the reinforcing plate has an integrally formed connecting plate extending into the interior of the connecting column, and the connecting plate has a plurality of outwardly bent fixing members. The ends of the fixing members are further bent to form extrusion members, and the central connecting bolt is provided with a fixing flange. When the central connecting bolt is tightened, the fixing flange extrudes the extrusion members to deform them, thereby achieving a tight connection between the upper insulator and the lower insulating column.

[0017] A method for producing ceramic insulators with ice and snow removal capabilities includes the following steps: S1 prepares the lower insulating column and the upper insulator separately: the lower insulating column and its bottom mounting base are integrally formed by ceramic slurry injection or pressing process, the prefabricated reinforcing plate is wrapped with ceramic raw material for forming, and the upper insulator blank with connecting column, external reinforcing rib and bottom support foot is integrally formed in the mold, and then dried, trimmed, glazed and sintered at high temperature. S2 Snow removal component preparation: The sliding sleeve, connecting seat, vibrating plate, wire support frame and wire clamping plate are manufactured by metal processing. The vibrating plate is welded to the sliding sleeve and the wire support frame is welded to the connecting seat to obtain a semi-finished snow removal component. The threaded hole of the limiting screw is machined on the connecting seat. S3 Assembly: Place the upper insulator on top of the lower insulating post, align the connecting post with the threaded hole, pass the center connecting bolt through the connecting post of the upper insulator and screw it into the threaded hole of the lower insulating post until it is tightened and fixed, put the sliding sleeve of the snow removal assembly on the outside of the connecting post, insert the upper end of the center connecting bolt into the connecting seat, align it with the sliding groove position, screw in the limit screw until its end enters the sliding groove, and install the wire clamp plate onto the wire support frame with bolts.

[0018] The technical effects and advantages of this invention are as follows: 1. By setting an upper insulator with a size larger than the lower insulating post skirt, it can effectively block the lower insulating structure. Most of the snow is confined to the surface of the upper insulator, and the icicles formed at its edge are difficult to connect with the ice and snow on the lower insulating post. This fundamentally cuts off the continuous ice and snow conductive channel along the surface and effectively prevents the occurrence of ice flashover accidents.

[0019] 2. The upper insulator has an embedded reinforcing plate inside and an integrally formed reinforcing rib and bottom support foot on the outside, forming a reinforced structure with internal and external coordination. Without excessively increasing the wall thickness, the mechanical strength of the upper insulator is improved, especially the mechanical strength of the large-size umbrella skirt part, so that it can withstand heavy ice and snow loads and will not be damaged by excessive snow accumulation.

[0020] 3. It uses a sliding connecting seat to cooperate with the central connecting bolt fixed to the crossarm to convert the small and continuous swaying kinetic energy of the transmission line caused by wind vibration and temperature difference into the up and down sliding of the snow removal component relative to the upper insulator. The sliding drives multiple vibrating plates to periodically squeeze and scrape the surface of the upper insulator, causing the accumulated ice and snow to loosen, break and slide off. No additional energy or manual intervention is required to remove ice in time.

[0021] 4. The contact plate at the end of the vibrating plate and the upward-protruding breaking plate work together during the sliding process. The squeezing and scraping of the contact plate can peel off the surface snow, while the breaking plate can pierce and pry the hard shell that has frozen into ice, effectively breaking the integrity of the ice and snow. It has a good breaking effect, especially on firmly bonded ice, ensuring the effectiveness of the cleaning.

[0022] 5. The external reinforcing ribs not only enhance the structure, but their specific cross-sectional shape also serves as a guide, accelerating the drainage of snow melt water. The ice-breaking teeth at the ends of the reinforcing ribs can further break the growth of edge ice. The design of the de-icing agent groove between the external reinforcing ribs provides space for placing slow-release de-icing agents, enabling chemically assisted de-icing. This is suitable for extremely heavy icing areas and enhances the product's environmental adaptability.

[0023] 6. The composite connection between the upper insulator and the lower insulating column is achieved through the cooperation of the internal fixing parts and the extrusion parts of the central connecting bolt. The snow removal assembly achieves installation and movement limitation through the simple cooperation of the limit screw and the sliding groove. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the disassembled snow removal component of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of the middle section structure; Figure 5 This is a schematic diagram of the snow removal component structure of the present invention; Figure 6 This is a schematic diagram showing the connection between the snow removal component and the central connecting bolt of the present invention; Figure 7 This is a schematic diagram of the vibrating plate structure of the present invention; Figure 8 This is a schematic diagram of the insulator structure in Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the insulator structure in Embodiment 2 of the present invention; Figure 10 This is a schematic diagram of the insulator structure in Embodiment 3 of the present invention.

[0025] In the diagram: 1. Lower insulating post; 11. Threaded hole; 2. Mounting base; 3. Crossarm connector; 4. Upper insulator; 41. Connecting post; 42. Reinforcing plate; 421. Connecting plate; 422. Fixing component; 423. Extrusion component; 43. External reinforcing rib; 431. Ice-breaking component; 44. Bottom support foot; 45. Semi-circular reinforcing rib; 451. First ice-breaking tooth; 46. Trapezoidal reinforcing rib; 461. Second ice-breaking tooth; 47. De-icing agent tank; 48. Triangular reinforcing rib; 481. Third ice-breaking tooth; 5. Snow removal assembly; 51. Sliding sleeve; 52. Connecting seat; 53. Vibrating plate; 531. Contact plate; 532. De-icing plate; 533. Through hole; 54. Wire support frame; 55. Wire clamping plate; 56. Limiting screw; 6. Center connecting bolt; 61. Sliding groove; 62. Fixing flange. Detailed Implementation

[0026] 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.

[0027] This invention provides, for example Figures 1-10The porcelain insulator shown includes a snow and ice clearing structure, comprising a lower insulating post 1, an upper insulator 4, a snow removal component 5, and a central connecting bolt 6. The lower insulating column 1 has an integrally formed mounting base 2 at its bottom. The mounting base 2 has a crossarm connector 3 internally threaded and is used to be installed on the crossarm. The upper insulator 4 is installed on top of the lower insulating post 1. The size of the upper insulator 4 is larger than the size of the upper skirt of the lower insulating post 1. The upper insulator 4 blocks the lower insulating post 1, so that most of the snow is on the upper insulator 4. Furthermore, the ice formed on the edge of the upper insulator 4 will not connect with the ice and snow on the lower insulating post 1, thus avoiding the formation of a conductive channel on the surface of the insulator, which could cause flashover and tripping.

[0028] The upper insulator 4 has a reinforcing plate 42 embedded inside to enhance its strength. The upper insulator 4 has an integrally formed reinforcing rib, which enhances its strength and forms a guide plate to guide the snow water on the upper insulator 4 downward. Multiple sets of bottom support feet 44 are integrally formed at the bottom of the upper insulator 4. The internal structure of the upper insulator 4 is reinforced by the reinforcing plate 42, and the external structure of the upper insulator 4 is further reinforced by the external reinforcing ribs 43 and the bottom support feet 44. This ensures the strength of the large-size upper insulator 4, so that it has sufficient strength to support ice and snow. An ice-breaking component 431 is provided at the edge of the outer reinforcing rib 43 near the upper insulator 4. The ice-breaking component 431 is set in the shape of a ruler, so as to help to break the ice and snow on the upper insulator 4.

[0029] A de-icing agent trough 47 for placing de-icing agent is connected between adjacent external reinforcing ribs 43. The de-icing agent trough 47 can be used to place de-icing agent, and work with the inclined surface of the insulator 4 to clear ice and snow.

[0030] The upper insulator 4 has an integrally formed connecting post 41, and the top of the lower insulating post 1 has a threaded hole 11. A central connecting bolt 6 is inserted into the connecting post 41 and installed in the threaded hole 11 to install the upper insulator 4 onto the lower insulating post 1. The snow removal assembly 5 includes a sliding sleeve 51 sleeved on the connecting post 41. A connecting seat 52 is integrally formed on the sliding sleeve 51. The upper end of the central connecting bolt 6 is inserted into the connecting seat 52 to connect the lower insulating post 1 to the snow removal assembly 5. The connecting seat 52 can slide slightly relative to the central connecting bolt 6. Multiple sets of vibrating plates 53 that contact the upper insulator 4 are arranged at equal intervals on the outer peripheral wall of the sliding sleeve 51. The vibrating plates 53 vibrate on the upper insulator 4 as the sliding sleeve 51 and the connecting seat 52 slide, so as to remove the accumulated ice and snow on the upper insulator 4. The free end of the vibrating plate 53 away from the sliding sleeve 51 is bent downward to form a contact plate 531. The contact plate 531 contacts the surface of the upper insulator 4. A breaking piece 532 is integrally formed on the contact plate 531. A through hole 533 is opened on the vibrating plate 53 corresponding to the breaking piece 532. The breaking piece 532 extends upward through the through hole 533. When the connecting seat 52 slides up and down relative to the central connecting bolt 6, the connecting seat 52 drives the sliding sleeve 51 to slide relative to each other along the outer wall of the connecting column 41. At this time, the vibrating plate 53 moves accordingly. When the vibrating plate 53 moves downward, the contact piece 531 is squeezed against the upper insulator 4, causing the vibrating plate 53 and the contact piece 531 to bend and deform simultaneously. At the same time, the contact piece 531 moves closer to the vibrating plate 53, which causes the breaking piece 532 to move upward relative to the vibrating plate 53. If there is snow accumulation on the upper insulator 4, that is, snow accumulation on the vibrating plate 53, the snow on it moves under the deformation and movement of the vibrating plate 53 and the contact piece 531, and performs preliminary snow breaking. Under the action of multiple vibrating plates 53, the snow is divided into multiple pieces, and the snow is loosened and slides down the slope of the upper insulator 4, thus achieving the effect of clearing the snow. Simultaneously, when the contact piece 531 moves closer to the vibrating piece 53, the breaking piece 532 moves upward. At this time, the breaking piece 532 punctures the snow accumulation. Even if the snow accumulation forms an integral connection of ice and snow, the ice layer is broken by the puncture of the breaking piece 532, which in turn causes the ice and snow to break apart and become fragmented into multiple groups. The ice and snow vibrated by the vibrating piece 53 can then slide down along the upper insulator 4, thereby achieving the removal of ice and snow.

[0031] The outer peripheral wall of the connecting seat 52 is threaded with multiple sets of limiting screws 56. The central connecting bolt 6 has a sliding groove 61 corresponding to the limiting screws 56. The limiting screws 56 rotate along the connecting seat 52 and insert into the sliding groove 61, thus limiting the connecting seat 52 to the outer peripheral wall of the central connecting bolt 6. The limiting screws 56 do not press against the sliding groove 61. The vertical dimension is provided with a margin for the limiting screws 56 to move relative to the sliding groove 61. Thus, the connecting seat 52 can slide relative to the central connecting bolt 6. The sliding dimension is the distance between the top contact of the limiting screws 56 and the bottom contact of the sliding groove 61. This allows the connecting seat 52 to slide slightly relative to the upper insulator 4 and the central connecting bolt 6, so as to achieve the compression of the vibrating plate 53 and the upper insulator 4. The deformation of the vibrating plate 53 breaks the ice and snow, thereby clearing the ice and snow on the upper insulator 4.

[0032] The top of the connector 52 is integrally formed with a wire support frame 54. A wire clamping plate 55 is bolted to the top of the wire support frame 54. The wire support frame 54 and the wire clamping plate 55 are used to support and clamp the wire. The sliding force of the connector 52 relative to the central connecting bolt 6 comes from the wire. Since the wire will inevitably sway between the insulators, this is a normal phenomenon for transmission lines operating in the natural environment. The sway is mainly caused by external loads, mainly wind loads and temperature changes. Continuous wind is the main cause of the periodic swing or random sway of the wire. The thermal expansion and contraction of the wire causes changes in sag, which can also cause positional movement.

[0033] Thus, under the swaying of the wire, the swaying force will be transmitted to the snow removal assembly 5 through the wire support frame 54 and the wire clamping plate 55, so that the snow removal assembly 5 slides relative to the central connecting bolt 6, and then moves vertically relative to the insulator 4 fixed by the central connecting bolt 6, so that the multiple vibrating plates 53 on the snow removal assembly 5 are squeezed and deformed against the upper insulator 4 and return to their original shape, so as to realize the vibration of the vibrating plates 53 and clear the ice and snow on the upper insulator 4. A connecting plate 421 extending into the interior of the connecting column 41 is integrally formed on the reinforcing plate 42. Multiple outwardly bent fasteners 422 are formed on the connecting plate 421. The ends of the fasteners 422 are further bent to form extruded parts 423. The outer peripheral wall of the central connecting bolt 6 is provided with a fixing flange 62. When the central connecting bolt 6 is inserted into the threaded hole 11 from the connecting post 41 and screwed into the threaded hole 11 to fix the central connecting bolt 6 to the lower insulating post 1, the fixing flange 62 on the central connecting bolt 6 moves into the reinforcing plate 42 until the fixing flange 62 contacts the extrusion member 423, pressing the upper insulator 4 onto the lower insulating post 1. As the central connecting bolt 6 continues to press down, the extrusion member 423 deforms until the extrusion member 423 is in contact with the fixing member 422. Then, under the action of the fixing flange 62 on the central connecting bolt 6, the upper insulator 4 and the lower insulating post 1 are fixedly connected. At this point, the sliding sleeve 51 in the snow removal assembly 5 is fitted onto the outer peripheral wall of the connecting column 41. The central connecting bolt 6 is then inserted into the connecting seat 52, so that the sliding groove 61 on the central connecting bolt 6 is correspondingly set at the limit screw 56. By rotating the limit screw 56 into the sliding groove 61, the snow removal assembly 5 and the central connecting bolt 6 are set to slide relative to each other.

[0034] A method for producing ceramic insulators with ice and snow removal capabilities includes the following steps: S1 prepares the lower insulating column 1 and the upper insulator 4 respectively: the lower insulating column 1 and the mounting base 2 at its bottom are integrally formed by ceramic slurry injection or pressing process, the prefabricated reinforcing plate 42 is wrapped with ceramic raw material for molding, and the upper insulator 4 blank with connecting column 41, external reinforcing rib 43 and bottom support foot 44 is integrally formed in the mold, and then dried, trimmed, glazed and sintered at high temperature. S2 Preparation of snow removal component 5: The sliding sleeve 51, connecting seat 52, vibrating plate 53, wire support frame 54 and wire clamping plate 55 are manufactured by metal processing. The vibrating plate 53 is welded to the sliding sleeve 51 and the wire support frame 54 is welded to the connecting seat 52 to obtain the semi-finished snow removal component 5. The threaded hole 11 of the limiting screw 56 is machined on the connecting seat 52. S3 Assembly: Place the upper insulator 4 on top of the lower insulating post 1, align the connecting post 41 with the threaded hole 11, pass the center connecting bolt 6 through the connecting post 41 of the upper insulator 4 and screw it into the threaded hole 11 of the lower insulating post 1 until it is tightened and fixed, put the sliding sleeve 51 of the snow removal assembly 5 on the outside of the connecting post 41, insert the upper end of the center connecting bolt 6 into the connecting seat 52, align it with the position of the sliding groove 61, screw in the limit screw 56 until its end enters the sliding groove 61, and install the wire clamping plate 55 onto the wire support frame 54 with bolts.

[0035] Example 1: Multiple sets of semi-circular reinforcing ribs 45 are evenly arranged on the outer peripheral wall of the upper insulator 4. The semi-circular reinforcing ribs 45 are set with a semi-circular cross section. The semi-circular reinforcing ribs 45 are provided with a first ice-breaking tooth 451 near the edge of the upper insulator 4. The first ice-breaking tooth 451 is set with a ruler shape, so as to help to break the ice and snow on the upper insulator 4. Example 2: Multiple sets of trapezoidal reinforcing ribs 46 are provided at equal intervals on the outer peripheral wall of the upper insulator 4. The trapezoidal reinforcing ribs 46 are configured with trapezoidal cross sections. A second ice-breaking tooth 461 is provided at the end of the trapezoidal reinforcing ribs 46 near the edge of the upper insulator 4. The second ice-breaking tooth 461 is configured with a ruler shape, so as to help to break the ice and snow on the upper insulator 4. Example 3: Multiple sets of triangular reinforcing ribs 48 are evenly arranged on the outer peripheral wall of the upper insulator 4. The triangular reinforcing ribs 48 are designed with triangular cross sections and pointed tops to facilitate drainage. A third ice-breaking tooth 481 is provided at the end of the triangular reinforcing ribs 48 near the edge of the upper insulator 4. The third ice-breaking tooth 481 is designed with a ruler shape to help break the ice and snow on the upper insulator 4.

[0036] Working principle: By designing a larger upper insulator 4, the lower insulating post 1 and its skirt are completely covered. Most of the snow accumulates only on the surface of the upper insulator 4. The icicles formed at its edges are suspended in the air and cannot connect with the ice and snow on the lower insulating post 1. This physically cuts off the main path for forming a continuous conductive ice bridge along the insulator string and prevents ice flashover.

[0037] The reinforcing plate 42 embedded inside the upper insulator 4, together with the external reinforcing rib 43 and the bottom support foot 44, constitutes a composite reinforcement structure, which improves the mechanical strength of the large-sized upper insulator 4 and safely withstands the continuously accumulating ice and snow load.

[0038] Under the influence of natural wind load and thermal expansion and contraction caused by temperature difference, the power transmission line will inevitably experience continuous slight swaying. The swaying of the line is transmitted to the entire snow removal assembly 5 through the wire clamp plate 55 and the wire support frame 54.

[0039] Since the connecting seat 52 of the snow removal assembly 5 is slidably engaged with the sliding groove 61 on the center connecting bolt 6 through the limiting screw 56, and the center connecting bolt 6 is fixed on the lower insulating post 1 and the crossarm, the snow removal assembly 5 can make up-down micro-movements relative to the fixed upper insulator 4 under the drive of the conductor swaying force.

[0040] The micro-motion drive of the snow removal component 5 drives the vibrating plate 53 to move. When the snow removal component 5 slides downward, the contact plate 531 at the end of the vibrating plate 53 is squeezed and slides relative to the inclined surface of the upper insulator 4. It can directly scrape the loose surface snow and cause the elastic vibrating plate 53 to bend and deform and store energy.

[0041] As the contact piece 531 is pressed close to the vibrating piece 53 body, the integrally formed breaking piece 532 moves upward, piercing and prying the already solidified hard ice layer, destroying the integrity and adhesion of the ice and snow.

[0042] When the direction of the conductor swaying force changes and the snow removal component 5 returns to its upward position, the elastic potential energy stored in the vibrating plate 53 is released, causing it to rebound and generate vibration. Through vibration, the broken and loosened ice and snow blocks are further peeled off from the surface of the upper insulator 4.

[0043] Finally, it should be noted that the above description is only 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 porcelain insulator with a snow and ice clearing structure, characterized in that, include: The lower insulating post (1) has an integrally formed mounting base (2) at its bottom, and a threaded hole (11) is provided at the top of the lower insulating post (1). The upper insulator (4) is installed on top of the lower insulating post (1). Its size is larger than the size of the shed of the lower insulating post (1). A connecting post (41) is integrally formed at its upper end, and a reinforcing plate (42) is embedded inside it. Snow removal assembly (5) includes a sliding sleeve (51) slidably sleeved on a connecting post (41) and a plurality of vibrating plates (53) arranged along the outer peripheral wall of the sliding sleeve (51), wherein the free ends of the plurality of vibrating plates (53) are bent downward to form contact plates (531) that contact the surface of the upper insulator (4). A central connecting bolt (6) passes through the connecting post (41) and is screwed into the threaded hole (11) to fix the upper insulator (4) to the lower insulating post (1).

2. A porcelain insulator with a snow and ice clearing structure according to claim 1, characterized in that, The sliding sleeve (51) has an integrally formed connecting seat (52), which is sleeved on the upper end of the central connecting bolt (6) and can slide axially relative to it.

3. A porcelain insulator with a snow and ice clearing structure according to claim 2, characterized in that, The peripheral wall of the connecting seat (52) is threaded with a limiting screw (56), and the upper end of the central connecting bolt (6) is provided with an axial sliding groove (61). The inner end of the limiting screw (56) extends into the sliding groove (61), so that the connecting seat (52) can slide along the central connecting bolt (6) within the length range of the sliding groove (61).

4. A porcelain insulator with a snow and ice clearing structure according to claim 2, characterized in that, The top of the connector (52) is integrally formed with a wire support frame (54), and a wire clamping plate (55) is installed on the top of the wire support frame (54) by bolts.

5. A porcelain insulator with a snow and ice clearing structure according to claim 1, characterized in that, The contact piece (531) has an integrally formed breaking piece (532), and the vibrating piece (53) has a through hole (533) corresponding to the breaking piece (532), and the breaking piece (532) extends upward through the through hole (533).

6. A porcelain insulator with a snow and ice clearing structure according to claim 1, characterized in that, The upper insulator (4) is integrally formed with at least one set of external reinforcing ribs (43).

7. A porcelain insulator with a snow and ice clearing structure according to claim 6, characterized in that, The external reinforcing ribs (43) are multiple ribs provided on the outer peripheral wall of the upper insulator (4), and ice-breaking parts (431) are formed at the ends near the edges. The cross-sectional shape of the reinforcing ribs is one of semi-circular, triangular or trapezoidal.

8. A porcelain insulator with a snow and ice clearing structure according to claim 6, characterized in that, A de-icing agent tank (47) for placing de-icing agent is connected between adjacent external reinforcing ribs (43).

9. A porcelain insulator with a snow and ice clearing structure according to claim 1, characterized in that, The reinforcing plate (42) has an integrally formed connecting plate (421) extending into the connecting column (41). The connecting plate (421) has a plurality of outwardly bent fasteners (422). The ends of the fasteners (422) are further bent to form extrusions (423). The central connecting bolt (6) is provided with a fixing flange (62). When the central connecting bolt (6) is tightened, the fixing flange (62) presses the extrusions (423) to deform it, thereby achieving a tight connection between the upper insulator (4) and the lower insulating column (1).

10. A method for producing a porcelain insulator with an ice and snow clearing structure, based on the porcelain insulator with an ice and snow clearing structure as described in any one of claims 1-9, characterized in that, Includes the following steps: S1 prepares the lower insulating column (1) and the upper insulator (4) respectively: the lower insulating column (1) and its bottom mounting base (2) are integrally formed by ceramic slurry injection or pressing process, the pre-made reinforcing plate (42) is wrapped with ceramic raw material for molding, and the upper insulator (4) blank with connecting column (41), external reinforcing rib (43) and bottom support foot (44) is integrally formed in the mold, and then dried, trimmed, glazed and sintered at high temperature; S2 Preparation of snow removal component (5): The sliding sleeve (51), connecting seat (52), vibrating plate (53), wire support frame (54) and wire clamping plate (55) are manufactured by metal processing. The vibrating plate (53) is welded to the sliding sleeve (51), and the wire support frame (54) is welded to the connecting seat (52) to obtain the semi-finished snow removal component (5). The threaded hole (11) of the limiting screw (56) is machined on the connecting seat (52). S3 Assembly: Place the upper insulator (4) on top of the lower insulating post (1), align the connecting post (41) with the threaded hole (11), pass the center connecting bolt (6) through the connecting post (41) of the upper insulator (4) and screw it into the threaded hole (11) of the lower insulating post (1) until it is tightened and fixed, put the sliding sleeve (51) of the snow removal assembly (5) on the outside of the connecting post (41), insert the upper end of the center connecting bolt (6) into the connecting seat (52), align it with the position of the sliding groove (61), screw in the limiting screw (56) until its end enters the sliding groove (61), and install the wire clamping plate (55) onto the wire support frame (54) with bolts.

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