Porcelain rod-shaped insulator with wind power dust removal function

Abstract

The porcelain rod-shaped insulator comprises an insulating rod, connecting caps are arranged at the two ends of the insulating rod, an umbrella skirt set is arranged on the insulating rod, a large umbrella skirt with the diameter larger than that of the umbrella skirt set is arranged on the outer wall of the connecting cap at the top, and a cleaning mechanism for cleaning the large umbrella skirt is arranged above the large umbrella skirt. The large umbrella skirts are arranged to shield the umbrella skirt group, dirt is effectively prevented from being attached to the surface of the umbrella skirt group, meanwhile, the cleaning mechanism is arranged to dynamically clean the large umbrella skirts, under the action of external wind power, the unpowered wind ball drives the mounting base to do circular motion, and the brush continuously rubs the top wall of the large umbrella skirts in the motion process to remove the attached dirt, so that the cleaning efficiency is improved. And a protected device is prevented from being damaged by reduction of the insulating property of the porcelain insulator caused by dirt accumulation.

Description

Technical Field

[0001] The present invention relates to the field of insulators, and particularly to a porcelain rod insulator with wind dust removal. Background Art

[0002] A porcelain rod insulator is a rigid insulating component used in high-voltage transmission lines and electrical equipment. It is usually composed of an insulating rod, umbrella skirts, and connection caps, etc. When the porcelain rod insulator is used outdoors for a long time, it usually faces the problem of dirt such as dust, floating snow, and bird excrement adhering to the surface of the umbrella skirts. These dirt will cause the insulation performance of the porcelain insulator to decline, easily causing damage to the protected devices. On the other hand, the porcelain rod insulator is easily affected by birds. Birds are prone to building nests or staying on the porcelain rod insulator, which not only aggravates the accumulation of dirt but may also form a short-circuit loop due to the bird body contacting the wire. Therefore, we propose a porcelain rod insulator with wind dust removal. Summary of the Invention

[0003] The purpose of the present invention is to provide a porcelain rod insulator with wind dust removal, which solves the technical problem that the dirt on the surface of the umbrella skirt of the existing porcelain rod insulator affects the performance of the porcelain insulator and easily causes damage to the protected devices.

[0004] The present invention achieves the above purpose through the following technical solutions: A porcelain rod insulator with wind dust removal includes an insulating rod. Connection caps are provided at both ends of the insulating rod. An umbrella skirt group is provided on the insulating rod. A large umbrella skirt with a diameter larger than that of the umbrella skirt group is provided on the outer wall of the top connection cap. A cleaning mechanism for cleaning it is provided above the large umbrella skirt; wherein, the cleaning mechanism includes a connection bearing rotatably sleeved on the outer wall of the top connection cap, several groups of mounting seats respectively connected to the connection bearing through connection blocks, a brush provided at the bottom of the mounting seat and fitting with the top wall of the large umbrella skirt, and a power-free wind ball rotatably provided on the outer wall of the top connection cap and above the connection bearing. The outer wall of the power-free wind ball is respectively connected to several groups of mounting seats through brackets. The power-free wind ball drives the mounting seats, the brush, and the connection bearing to perform circular motion relative to the top connection cap under the drive of external wind force.

[0005] Further improvement lies in that the umbrella skirt group includes several groups of first umbrella skirts provided on the outer wall of the insulating rod, and a second umbrella skirt is provided between adjacent two groups of first umbrella skirts. The diameter of the first umbrella skirt is larger than that of the second umbrella skirt.

[0006] A further improvement is that a channel is opened in the mounting seat, a ball is movably arranged in the channel, a driving mechanism is provided in the mounting seat and at the outer end of the channel, and a sound-generating mechanism is provided in the mounting seat and at the inner end of the channel. The driving mechanism is used to intermittently push the ball to hit the sound-generating mechanism when the mounting seat performs circular motion, and the sound-generating mechanism is used to generate sound and transmit vibration force to the mounting seat.

[0007] A further improvement is that the driving mechanism includes a roller rotatably arranged on the outer edge of the large umbrella skirt, a mounting block arranged on the outer end of the mounting seat, an active cavity 1 opened in the mounting seat and located at the outer end of the channel, and a push rod movably arranged in the active cavity 1, one end of the push rod extends into the channel, and the other end is connected to the inner wall of the active cavity 1 through an elastic member, the shaft of the roller extends into the mounting block and is sleeved with a toothless gear, one side of the toothless gear is meshed with a gear shaft, the outer wall of the gear shaft is wound with a pull rope, and the other end of the pull rope extends into the active cavity 1 and is connected to the push rod.

[0008] A further improvement is that the sound-generating mechanism includes an active cavity 2 opened in the mounting seat and connected to the inner end of the channel, a rotating column 1 is provided in the active cavity 2, and a sound-generating plate for contacting the ball is provided on the outer wall of the rotating column 1.

[0009] A further improvement is that a plurality of groups of notches are provided on the circumferential outer wall of the rotating column one, sound-emitting plates are provided in each of the plurality of notches, and the thickness of the plurality of sound-emitting plates are different. The rotating column one is arranged in the movable cavity two by rotating through a rotating shaft, one end of the rotating shaft passes through the mounting seat and is provided with a transmission member, and the transmission member is used to intermittently drive the rotating shaft to drive the rotating column one to rotate a preset angle when the mounting seat performs a circular motion, so that the plurality of sound-emitting plates correspond to the channels in sequence.

[0010] A further improvement is that the transmission member includes a protection seat 1 which is arranged on the mounting seat and movably sleeved on the outside of the rotating shaft, a protection seat 2 which is arranged on the connecting block, a driving shaft is rotatably arranged inside the protection seat 2, one end of the driving shaft passes through the protection seat 2 and is sleeved with a transmission gear, a support ring is arranged on the inside of the transmission gear, the support ring is fixedly sleeved on the top connecting cap, and a plurality of groups of arc-shaped racks are arranged on the circumferential outer wall of the support ring for driving the transmission gear to rotate, a coupling is arranged between the protection seat 1 and the protection seat 2, and the two ends of the coupling are respectively connected to the rotating shaft and the driving shaft through a bevel gear group.

[0011] A further improvement is that a bearing seat is provided on the top of the mounting seat, an assembly opening is provided on the top of the bearing seat, a rotating column 2 is rotatably provided in the assembly opening, one end of the shaft of the rotating column 2 passes through the bearing seat and extends into the protective seat 1 and is connected to the rotating shaft transmission, and a plurality of groups of bird-repellent plates are embedded in the outer wall of the rotating column 2.

[0012] A further improvement is that there are three groups of bird repellent sheets, namely a red reflective sheet, a blue reflective sheet, and a white reflective sheet.

[0013] A further improvement is that brush heads are respectively connected to both sides of the mounting block through support rods, and the cleaning ends of the brush heads are attached to the outer edges of the large umbrella skirt.

[0014] The beneficial effects of the present invention are as follows: By providing a large umbrella skirt to shield the umbrella skirt group, the present invention effectively prevents dirt from adhering to the surface of the umbrella skirt group. At the same time, a cleaning mechanism is configured to dynamically clean the large umbrella skirt. Under the action of external wind force, the wind-driven ball drives the mounting seat to perform a circular motion. During the motion process, the brush continuously rubs the top wall of the large umbrella skirt to remove the attached dirt, avoiding damage to the protected device due to the decline of the insulation performance of the porcelain insulator caused by dirt accumulation. The driving mechanism intermittently pushes the sphere during the rotation of the mounting seat, causing it to impact the sound generating mechanism, triggering the sound generating mechanism to generate a sound to form a scaring and expelling effect on the approaching birds. At the same time, the vibration force generated by the impact of the sphere is transmitted to the brush through the mounting seat, causing the brush to vibrate, enhancing the cleaning effect on the surface of the large umbrella skirt, and promoting the dirt removed from the brush to be thrown off, reducing the self-pollution of the brush, thereby prolonging the maintenance cycle of the cleaning mechanism. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the porcelain rod-shaped insulator of the present invention; Figure 2 It is a schematic structural diagram of the cleaning mechanism in the porcelain rod-shaped insulator of the present invention; Figure 3 For the present invention Figure 2 Partial structural side view; Figure 4 For the present invention Figure 3 A-A structural cross-sectional view in it; Figure 5 For the present invention Figure 4 Enlarged view of structure A in it; Figure 6 It is a schematic structural diagram of the driving mechanism and the sound generating mechanism in the present invention.

[0016] In the figure: 1, insulating rod; 2, first umbrella skirt; 3, second umbrella skirt; 4, connecting cap; 5, bird repellent sheet; 6, large umbrella skirt; 7, connecting bearing; 8, connecting block; 9, wind-driven ball; 10, mounting seat; 11, mounting block; 12, roller; 13, support ring; 14, brush head; 15, brush; 16, missing tooth gear; 17, top rod member; 18, elastic member; 19, pull rope; 20, channel; 21, sphere; 22, sounding piece; 23, coupling; 24, transmission gear; 25, rotating column one; 26, bearing seat; 27, rotating column two. Detailed Embodiments

[0017] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0018] Embodiment 1 Please refer to the attached Figures 1-3 drawings. A porcelain rod insulator with wind dust removal includes an insulating rod 1. Connecting caps 4 are provided at both ends of the insulating rod 1. The porcelain rod insulator is installed at the required position through the connecting caps 4. An umbrella skirt group is provided on the insulating rod 1. A large umbrella skirt 6 with a diameter larger than that of the umbrella skirt group is provided on the outer wall of the top connecting cap 4. The umbrella skirt group and the large umbrella skirt 6 are used to extend the creepage distance. The diameter of the large umbrella skirt 6 is larger than that of the umbrella skirt group, which plays a role in shielding the lower umbrella skirt group, so that dirt such as rain, snow, and bird excrement is not easily attached to the umbrella skirt group. The top surfaces of both the large umbrella skirt 6 and the umbrella skirt group are smooth streamline inclined arc surfaces to guide the rainwater, so that the rainwater can carry away the dirt and improve the self-cleaning effect. A cleaning mechanism for cleaning the large umbrella skirt 6 is provided above the large umbrella skirt 6. The large umbrella skirt 6 is cleaned through the cleaning mechanism to remove dirt and the like on the large umbrella skirt 6. Among them, the cleaning mechanism includes a connecting bearing 7 rotatably sleeved on the outer wall of the top connecting cap 4, several groups of mounting seats 10 respectively connected to the connecting bearing 7 through connecting blocks 8. The mounting seats 10 are distributed in a circular array. The connecting block 8 is specifically fixed to the outer ring of the connecting bearing 7. The mounting seats 10 are inclined and attached to the top wall of the large umbrella skirt 6. A brush 15 provided at the bottom of the mounting seat 10 and attached to the top wall of the large umbrella skirt 6, and a windless wind ball 9 rotatably provided on the outer wall of the top connecting cap 4 and located above the connecting bearing 7. The outer wall of the windless wind ball 9 is respectively connected to several groups of mounting seats 10 through brackets. The windless wind ball 9 drives the mounting seats 10, the brush 15, and the connecting bearing 7 to perform circular motion relative to the top connecting cap 4 under the drive of the external wind force. When the wind blows through the cleaning mechanism, the windless wind ball 9 rotates. The windless wind ball 9 is a conventional component in the art and will not be described in detail here. When the windless wind ball 9 drives the mounting seat 10 to perform circular motion, the brush 15 rubs the top wall of the large umbrella skirt 6 to remove the dirt on the large umbrella skirt 6. And the windless wind ball 9 also makes the air flow vertically from bottom to top, which has a certain effect of blowing the surface of the large umbrella skirt 6 downward, improving the cleaning quality.

[0019] Preferably, the umbrella skirt group of this embodiment includes several groups of first umbrella skirts 2 provided on the outer wall of the insulating rod 1. A second umbrella skirt 3 is provided between two adjacent groups of first umbrella skirts 2. The diameter of the first umbrella skirt 2 is larger than that of the second umbrella skirt 3 and smaller than that of the large umbrella skirt 6. By alternately arranging the first umbrella skirts 2 and the second umbrella skirts 3 with different diameters and increasing the number of umbrella skirts, the overall creepage distance can be increased. By increasing the spacing between the first umbrella skirts 2 and the size of the diameter of the first umbrella skirts 2, the connection of contaminants (such as ice) can be prevented, and the anti-pollution performance can be improved.

[0020] Preferably, a channel 20 is formed in the mounting seat 10 of this embodiment. A sphere 21 is movably arranged in the channel 20. The sphere 21 is preferably a metal ball. A driving mechanism is provided at the outer end of the channel 20 in the mounting seat 10, and a sound generating mechanism is provided at the inner end of the channel 20 in the mounting seat 10. The driving mechanism is used to intermittently push the sphere 21 to impact the sound generating mechanism when the mounting seat 10 makes a circular motion. The sound generating mechanism is used to generate sound and transmit vibration force to the mounting seat 10. Through this setting, the sound generating mechanism makes a sound to scare away the approaching birds, achieving the purpose of bird repelling. And the sphere 21 impacts the sound generating mechanism to generate vibration force and transmit it to the mounting seat 10. The mounting seat 10 transmits the vibration force to the brush 15, causing the brush 15 to vibrate, improving the cleaning effect on the large umbrella skirt 6, and at the same time facilitating the throwing off of the removed contaminants, reducing the self-pollution of the brush 15 and extending its maintenance cycle. In addition, in winter, the vibration prevents the accumulation of ice crystals between the bristles of the brush 15, playing a certain role in anti-icing.

[0021] Embodiment 2 Please refer to the attached Figures 3-6 , on the basis of Embodiment 1, the driving mechanism of this embodiment includes a roller 12 rotatably arranged on the outer edge of the large umbrella skirt 6. When the mounting seat 10 makes a circular motion on the large umbrella skirt 6, the roller 12 makes a circular motion along the outer edge of the large umbrella skirt 6. Under the action of friction, the roller 12 rotates. A mounting block 11 is arranged at one end of the mounting seat 10. The mounting block 11 is of a hollow structure. A movable cavity one is formed in the mounting seat 10 and located at the outer end of the channel 20. A top rod member 17 is movably arranged in the movable cavity one. The top rod member 17 is in a T shape and includes a plate portion and a rod body connecting the plate body. One end of the top rod member 17 extends into the channel 20, and the other end is connected to the inner wall of the movable cavity one through an elastic member 18 (such as a spring). The shaft portion of the roller 12 extends into the mounting block 11 and is sleeved with a toothless gear 16. One side of the toothless gear 16 is engaged with a gear shaft. The gear shaft includes a shaft and a gear sleeved on the shaft and engaged with the toothless gear 16. A pull rope 19 is wound around the outer wall of the gear shaft. The other end of the pull rope 19 extends into the movable cavity one and is connected to the top rod member 17; The working principle is as follows: Since the mounting base 10 is inclined on the large umbrella skirt 6, its channel 20 is inclined. The sphere 21 in the channel 20 rolls to the top rod 17 under its own gravity. When the mounting base 10 makes a circular motion, the roller 12 drives the toothless gear 16, and the toothless gear 16 drives the gear shaft to rotate. The gear shaft winds up the pull rope 19 to pull the top rod 17 to move outward and squeeze the elastic member 18. When the toothless section on the toothless gear 16 corresponds to the gear shaft, the elastic member 18 drives the top rod 17 to reset and enter the channel 20 to impact the sphere 21 in the channel 20. After being impacted, the sphere 21 moves to impact the sound generating mechanism to generate a sound, and at the same time, the mounting base 10 generates a vibration force.

[0022] Preferably, the sound generating mechanism of this embodiment includes a second movable cavity opened in the mounting base 10 and communicating with the inner end of the channel 20. A first rotating column 25 is provided in the second movable cavity. A sounding piece 22 for contacting the sphere 21 is provided on the outer wall of the first rotating column 25. The sounding piece 22 is preferably a metal piece. The sphere 21 impacts the metal piece to generate a sound, and the impact-generated vibration force is transmitted to the first rotating column 25, and the first rotating column 25 transmits it to the mounting base 10. To enhance the propagation effect of the sound, several groups of small holes communicating with the second movable cavity are provided on the outer wall of the mounting base 10, so that the sound wave radiates and diffuses outward through the small holes, thereby enhancing the bird repelling warning effect.

[0023] Preferably, both sides of the mounting block 11 of this embodiment are respectively connected with a brush head 14 through a support rod. The cleaning end of the brush head 14 is attached to the outer edge of the large umbrella skirt 6. When the mounting base 10 makes a circular motion, it also drives the brush head 14 to make a circular motion along the outer edge of the large umbrella skirt 6, thereby playing a role in cleaning the outer edge of the large umbrella skirt 6 to ensure the stable rotation of the roller 12.

[0024] Embodiment 3 Please refer to the appendix Figures 3-6On the basis of Example 2, the outer wall of the circumference of the rotating column 1 25 of this embodiment is provided with a plurality of groups of notches, each of which is provided with a sounding sheet 22, and the thickness of each group of sounding sheets 22 is different. For example, there are three groups of sounding sheets 22, and the three groups of sounding sheets 22 are respectively a thin sounding sheet, a sounding sheet of standard thickness, and a thick sounding sheet. When the sphere 21 hits the sounding sheets 22 of different thicknesses, different sounds are produced. The thin sounding sheet usually produces a high-frequency sharp sound, the sounding sheet of standard thickness usually produces a medium-frequency resonant sound, and the thick sounding sheet usually produces a low-frequency roaring sound. The non-periodic tone changes produced by the thickness difference break the birds' adaptation to a single frequency, thereby improving the hearing performance of the birds. Bird-repelling effect; the rotating column 25 is arranged in the movable cavity 2 by rotating the rotating shaft, one end of the rotating shaft passes through the mounting seat 10 and is provided with a transmission member, the transmission member is used to intermittently drive the rotating shaft to drive the rotating column 25 to rotate a preset angle when the mounting seat 10 performs a circular motion, so that several groups of sound-emitting plates 22 correspond to the channels 20 in sequence, so that different sound-emitting plates 22 cooperate with the sphere 21. It should be noted that the bird-repelling mechanism and the transmission member are triggered asynchronously, that is, when the sphere 21 is driven by the driving mechanism to move toward the rotating column 25, the rotating column 25 does not rotate, so as to ensure that the sphere 21 hits the sound-emitting plate 22 on the rotating column 25 instead of the outer wall of the rotating column 25.

[0025] Preferably, the transmission member of this embodiment includes a protection seat 1 which is arranged on the mounting seat 10 and movably sleeved on the outside of the rotating shaft, a protection seat 2 which is arranged on the connecting block 8, a driving shaft is rotatably arranged in the protection seat 2, one end of the driving shaft passes through the protection seat 2 and is sleeved with a transmission gear 24, a support ring 13 is arranged on the inner side of the transmission gear 24, the support ring 13 is fixedly sleeved on the top connecting cap 4, and a plurality of groups of arc-shaped racks are arranged on the circumferential outer wall of the support ring 13 for driving the transmission gear 24 to rotate, under the action of the unpowered wind ball 9, the mounting seat 10 performs a circular motion relative to the top connecting cap 4, and the support ring 13 does not rotate, so that the transmission gear 24 can intermittently mesh with the arc-shaped rack, and under the action of the arc-shaped rack, the transmission gear 24 drives the driving shaft to rotate It should be noted that the number of arc-shaped racks is the same as the number of mounting seats 10, so that the transmission gears 24 on several groups of mounting seats 10 can rotate synchronously. A coupling 23 is provided between the protective seat one and the protective seat two. The coupling 23 is, for example, a universal joint. The universal joint is a component for realizing variable-angle power transmission. It belongs to a conventional structure in this field and is not described in detail here. The two ends of the coupling 23 are respectively connected to the rotating shaft and the driving shaft through a bevel gear set (two sets of meshing bevel gears). A bearing is also provided at the connection between the end of the coupling 23 and the protective seat one and the protective seat two. When the driving shaft rotates, the rotating shaft is driven by the bevel gear set and the coupling 23, and then the rotating shaft drives the rotating column 1 25 to rotate, so as to switch the sound plate 22 corresponding to the channel 20.

[0026] Example 4 Please see attached Figure 6, on the basis of Embodiment 3, a bearing seat 26 is fixedly provided at the top of the mounting seat 10 of this embodiment. An assembly port is provided at the top of the bearing seat 26. A second rotating column 27 is rotatably provided in the assembly port. One end of the shaft portion of the second rotating column 27 penetrates through the bearing seat 26 and extends into the first protection seat to be in transmission connection with the rotating shaft. The two can be in transmission connection by a bevel gear set. A plurality of groups of bird repelling pieces 5 are embedded on the outer wall of the second rotating column 27. The bird repelling piece 5 is, for example, a reflective sheet; The mounting seat 10 cannot perform circular motion when there is no wind. In order to ensure the bird repelling effect in this case, the bird repelling piece 5 on the outer wall of the second rotating column 27 scares and expels the approaching birds; when there is wind, when the driving shaft intermittently drives the rotating shaft to rotate, the rotating shaft also drives the second rotating column 27 to intermittently rotate by a certain angle, so that several groups of bird repelling pieces 5 on the outer wall of the second rotating column 27 are alternately exposed to the environment. The dynamic flipping process can effectively improve the vigilance of birds and improve the bird repelling effect of the bird repelling piece 5.

[0027] Preferably, there are three groups of the bird repelling pieces 5 in this embodiment, namely a red reflective sheet, a blue reflective sheet and a white reflective sheet. Red, blue and white are all colors that birds are more afraid of, which can arouse the vigilance of birds more. The reflective sheets of different colors are alternately exposed to the environment, effectively avoiding the adaptive fatigue of birds to a single stimulation mode and further improving the bird repelling effect.

[0028] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A porcelain rod insulator with wind dust removal, comprising an insulating rod (1), connection caps (4) are provided at both ends of the insulating rod (1), and an umbrella skirt group is provided on the insulating rod (1), characterized in that: On the outer wall of the connecting cap (4) described above at the top, there is a large umbrella skirt (6) with a diameter larger than that of the umbrella skirt group. Above the large umbrella skirt (6), there is a cleaning mechanism for cleaning it. Among them, the cleaning mechanism includes a connecting bearing (7) rotatably sleeved on the outer wall of the top connecting cap (4), several groups of mounting seats (10) respectively connected to the connecting bearing (7) through connecting blocks (8), a brush (15) provided at the bottom of the mounting seat (10) and fitting with the top wall of the large umbrella skirt (6), and a wind-driven ball (9) rotatably arranged on the outer wall of the top connecting cap (4) and located above the connecting bearing (7). The outer wall of the wind-driven ball (9) is respectively connected to several groups of mounting seats (10) through brackets. The wind-driven ball (9) drives the mounting seats (10), the brush (15), and the connecting bearing (7) to perform circular motion relative to the top connecting cap (4) under the drive of the external wind force.

2. The porcelain rod insulator according to claim 1, characterized in that, The umbrella skirt group includes several groups of first umbrella skirts (2) provided on the outer wall of the insulating rod (1). A second umbrella skirt (3) is provided between adjacent two groups of first umbrella skirts (2). The diameter of the first umbrella skirt (2) is larger than that of the second umbrella skirt (3).

3. The porcelain rod insulator according to claim 1, characterized in that, A channel (20) is opened in the mounting seat (10). A sphere (21) is movably arranged in the channel (20). A driving mechanism is provided at the outer end of the channel (20) in the mounting seat (10). A sound-generating mechanism is provided at the inner end of the channel (20) in the mounting seat (10). The driving mechanism is used to intermittently push the sphere (21) to impact the sound-generating mechanism when the mounting seat (10) performs circular motion. The sound-generating mechanism is used to generate sound and transmit vibration force to the mounting seat (10).

4. The porcelain stick insulator according to claim 3, wherein The driving mechanism includes a roller (12) rotatably arranged at the outer edge of the large umbrella skirt (6), a mounting block (11) provided at the outer end of the mounting seat (10), a first movable cavity opened in the mounting seat (10) and located at the outer end of the channel (20), and a top rod member (17) movably arranged in the first movable cavity. One end of the top rod member (17) extends into the channel (20), and the other end is connected to the inner wall of the first movable cavity through an elastic member (18). The shaft part of the roller (12) extends into the mounting block (11) and is sleeved with a toothless gear (16). One side of the toothless gear (16) is engaged with a gear shaft. A pull rope (19) is wound around the outer wall of the gear shaft. The other end of the pull rope (19) extends into the first movable cavity and is connected to the top rod member (17).

5. The porcelain bar insulator according to claim 3, characterized in that, The sound-generating mechanism includes a second movable cavity opened in the mounting seat (10) and communicated with the inner end of the channel (20). A first rotating column (25) is arranged in the second movable cavity. A sounding piece (22) for contacting the sphere (21) is arranged on the outer wall of the first rotating column (25).

6. The porcelain rod insulator according to claim 5, characterized in that, A plurality of groups of notches are formed in the circumferential outer wall of the first rotating column (25). Sound generating sheets (22) are arranged in each of the plurality of groups of notches, and the thicknesses of the plurality of groups of sound generating sheets (22) are different. The first rotating column (25) is rotatably arranged in the second movable cavity through a rotating shaft. One end of the rotating shaft penetrates through the mounting seat (10) and is provided with a transmission member. The transmission member is used for intermittently driving the rotating shaft to drive the first rotating column (25) to rotate by a preset angle when the mounting seat (10) makes a circular motion, so that the plurality of groups of sound generating sheets (22) are sequentially corresponding to the channels (20).

7. The porcelain rod insulator according to claim 6, characterized in that, The transmission member includes a first protective seat arranged on the mounting seat (10) and movably sleeved outside the rotating shaft, and a second protective seat arranged on the connecting block (8). A driving shaft is rotatably arranged in the second protective seat. A transmission gear (24) is sleeved on one end of the driving shaft after the driving shaft penetrates through the second protective seat. A support ring (13) is arranged inside the transmission gear (24). The support ring (13) is fixedly sleeved on the top connecting cap (4). A plurality of groups of arc-shaped racks for driving the transmission gear (24) to rotate are arranged on the circumferential outer wall of the support ring (13). A coupling (23) is arranged between the first protective seat and the second protective seat. Two ends of the coupling (23) are respectively in transmission connection with the rotating shaft and the driving shaft through bevel gear sets.

8. The porcelain rod insulator according to claim 7, characterized in that, A bearing seat (26) is arranged on the top of the mounting seat (10). An assembly port is arranged on the top of the bearing seat (26). A second rotating column (27) is rotatably arranged in the assembly port. One end of the shaft portion of the second rotating column (27) penetrates through the bearing seat (26) and extends into the first protective seat to be in transmission connection with the rotating shaft. A plurality of groups of bird repelling sheets (5) are embedded on the outer wall of the second rotating column (27).

9. The porcelain rod insulator according to claim 8, wherein, The bird repelling sheets (5) are three groups, namely a red reflective sheet, a blue reflective sheet and a white reflective sheet.

10. The porcelain rod insulator according to claim 4, characterized in that, Brush heads (14) are respectively connected to two sides of the mounting block (11) through support rods. The cleaning ends of the brush heads (14) are attached to the outer edge of the large umbrella skirt (6).

Images