An electric insulator with impact energy absorption structure

Abstract

The present invention relates to the technical field of insulators, and in particular to an electric insulator with an impact energy absorption structure. The present invention provides such an electric insulator with an impact energy absorption structure, comprising: a core rod, a large insulating umbrella head and a small insulating umbrella head are respectively provided at the upper and lower parts of the outer side of the core rod to form a complete electric insulator; a first protective mechanism, a first protective mechanism for protecting the large insulating umbrella head is provided at the upper part of the core rod near the top of the large insulating umbrella head; a second protective mechanism, a second protective mechanism for protecting the small insulating umbrella head is provided at the lower part of the core rod near the top of the small insulating umbrella head. The present invention protects the large insulating umbrella head and the small insulating umbrella head through a protective shell and a protective frame, and rainwater falling on the protective shell can disperse and flow out of the protective shell along the leak hole, and when rainwater falls on the protective frame, the guide ball on the connecting column can promote rainwater to form water droplets on the guide ball to fall, so as to avoid rainwater gathering to form water flow conduction.

Description

Technical Field

[0001] The invention relates to the technical field of insulators, and in particular to an electric insulator with an impact energy absorption structure. Background Art

[0002] Spacers, also known as insulators, are a special type of insulating control component that can play an important role in overhead transmission lines. In the early years, insulators were mostly used on utility poles, and gradually developed into high-type high-voltage power line connection towers with many disc-shaped insulators hung on one end. It is to increase the creepage distance and is usually made of glass or ceramic.

[0003] During long-term use, objects falling from high altitudes, such as hail or flying birds, can easily hit the surface of insulators. Long-term impacts can easily cause cracks on the surface of insulators, which greatly reduces the insulating effect of the insulators in the line network. Currently, this problem is mostly solved by changing the production materials to strengthen the insulators themselves or setting simple baffles to protect the insulators. However, the research cost of changing the strength of the insulators themselves is high, and the simple protection structure cannot protect the insulators well, and it is easy to accumulate rainwater when it rains, causing rainwater to act as a conductor and affect the conductivity between insulators.

[0004] Therefore, it is necessary to design an electric insulator having an impact energy absorbing structure and maintaining insulation. Summary of the invention

[0005] In order to overcome the shortcomings that conventional insulator protection structures cannot protect insulators well and rainwater is easily accumulated when it rains, causing rainwater to act as a conductor and affect the conductivity between insulators, the technical problem of the present invention is to provide an electric insulator with an impact energy absorption structure.

[0006] The technical implementation scheme of the present invention is: an electric insulator with an impact energy absorption structure, comprising: a core rod, a large insulating umbrella head and a small insulating umbrella head, the large insulating umbrella head and the small insulating umbrella head are respectively arranged at the upper and lower parts of the outer side of the core rod to form a complete electric insulator; a first protective mechanism, a first protective mechanism for protecting the large insulating umbrella head is arranged at the upper part of the core rod near the top of the large insulating umbrella head; a second protective mechanism, a second protective mechanism for protecting the small insulating umbrella head is arranged at the lower part of the core rod near the top of the small insulating umbrella head.

[0007] Optionally, the first protective mechanism also includes: a protective shell, two fan-shaped protective shells are provided in contact with each other on both sides of the upper part of the core rod, the two protective shells fit together to form a bowl shape to protect the large insulating umbrella head, and a plurality of leakage holes are evenly spaced on the surface of the protective shell; a connecting strip, a connecting strip is provided at one end of the contact position of the two protective shells, and a connecting groove is provided at the other end, and the connecting strip is in contact with the connecting groove; a first clamping ring, the upper outer parts of the two protective shells are clamped with a first clamping ring fixed by bolts; a fixing tube, a plurality of fixing tubes are evenly spaced at the bottom of the protective shell; a top block, a top block is slidably provided in the fixing tube; an elastic member, an elastic member is connected between the fixing tube and the top block.

[0008] Optionally, the second protection mechanism also includes: a protection frame, two protection frames are provided in contact with each other on both sides of the lower part of the core rod, the two protection frames fit together to protect the small insulating umbrella head, and the two protection frames are connected and fixed by connecting bolts; connecting columns, a plurality of connecting columns are evenly spaced on the surface of the protection frame; guide balls, a plurality of guide balls are rotatably provided on the connecting columns at even intervals; a limit frame, a limit frame is provided on the lower inner side of the protection frame, and the limit frame is in contact with the small insulating umbrella head; a fixing ball, a plurality of fixing balls are evenly spaced at the bottom of the protection frame near the side.

[0009] Optionally, a force unloading mechanism is also included, which specifically includes: a fitting frame, a plurality of fitting frames are evenly spaced and sleeved on the protective shell, the upper part of the fitting frame contacts the upper surface of the protective shell, and the lower surface of the fitting frame contacts the upper surface of the large insulating umbrella head; a wind plate, a wind plate is provided on the top of the fitting frame; a clamping plate, a clamping plate is provided at the bottom of the fitting frame; a second clamping ring, the inner side of the second clamping ring is evenly spaced with clamping grooves of the same number as the fitting frames, and the bottoms of all the fitting frames are fixedly clamped and matched with the clamping plates and the clamping grooves of the second clamping rings.

[0010] Optionally, it also includes a rotating mechanism, which specifically includes: a fixed ring, a fixed ring is provided in the middle of the core rod, and the fixed ring is in contact with the protective frame; a rotating column, the protective frame is provided with rotating columns at evenly spaced intervals near the core rod; and a rotating ball, a limiting frame is provided with rotating balls at evenly spaced intervals near the small insulating umbrella head.

[0011] Optionally, it also includes: a first elastic ring, a cavity is opened on the inner side of the large insulating umbrella head, and the cavity is filled with the first elastic ring; a limiting ring, the bottoms of the large insulating umbrella head and the small insulating umbrella head are both concave, and limiting rings are provided at the bottoms of the concave parts of the large insulating umbrella head and the small insulating umbrella head; a second elastic ring, the concave parts of the large insulating umbrella head and the small insulating umbrella head are both provided with a second elastic ring.

[0012] Optionally, the protective shell and the connecting column are both made of elastic material.

[0013] Optionally, a plurality of baffles are evenly spaced along the central axis on the surface of the guide ball.

[0014] The present invention has the following advantages: 1. In the present invention, the large insulating umbrella head and the small insulating umbrella head are protected by a protective shell and a protective frame. When impacted, the protective shell or the protective frame first contacts the impacting object, and the rainwater falling on the protective shell can disperse and flow out of the protective shell along the leakage holes. When the rainwater falls on the protective frame, the guide ball on the connecting column can promote the rainwater to form water droplets on the guide ball and then fall down, thereby avoiding the rainwater gathering to form water flow conduction.

[0015] 2. During installation, the position of the fitting frame is relatively fixed. When a foreign object impacts the protective shell, the fitting frame first contacts the impact object. Since the fitting frame and the protective shell slide together, the impact object hits the fitting frame. The structure formed by the fitting frame and the clamping ring can rotate under the action of the impact, thereby unloading and absorbing the impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the first protection mechanism of the present invention.

[0019] Figure 4 It is a three-dimensional structural explosion diagram of the first protection mechanism of the present invention.

[0020] Figure 5 It is a partial three-dimensional structure exploded diagram of the first protection mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of a first three-dimensional structure of the second protection mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of a second three-dimensional structure of the second protection mechanism of the present invention.

[0023] Figure 8 It is a partial three-dimensional structural schematic diagram of the second protection mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the first three-dimensional structure of the force unloading mechanism of the present invention.

[0025] Fig.10 It is a schematic diagram of a second three-dimensional structure of the force unloading mechanism of the present invention.

[0026] Fig.11 It is a partial three-dimensional structural schematic diagram of the force unloading mechanism of the present invention.

[0027] Fig.12 It is a three-dimensional structural schematic diagram of the core rod, the fixing ring and the protection frame of the present invention.

[0028] Fig.13 It is a partial three-dimensional structural schematic diagram of the rotating mechanism of the present invention.

[0029] Fig.14 It is a schematic cross-sectional view of the three-dimensional structure of the large insulating umbrella head and the first elastic ring of the present invention.

[0030] Fig.15 It is a partial three-dimensional structure explosion diagram of the present invention.

[0031] The meanings of the reference numerals in the figure are as follows: 1: core rod, 2: large insulating umbrella head, 3: small insulating umbrella head, 4: first protective mechanism, 401: protective shell, 402: connecting strip, 403: connecting groove, 404: first clamping ring, 405: leakage hole, 406: fixing tube, 407: elastic member, 408: top block, 5: second protective mechanism, 501: protective frame, 502: connecting bolt, 503: connecting column, 504: guide ball, 505: limiting frame, 506: fixing ball, 6: unloading mechanism, 601: fitting frame, 602: wind plate, 603: clamping plate, 604: second clamping ring, 605: clamping groove, 7: rotating mechanism, 701: fixing ring, 702: rotating column, 703: rotating ball, 8: cavity, 9: first elastic ring, 10: limiting ring, 11: second elastic ring. DETAILED DESCRIPTION

[0032] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] Example 1 like Figures 1 to 8 As shown, the present invention provides an electric insulator with an impact energy absorption structure, which specifically includes a core rod 1, a large insulating umbrella head 2, a small insulating umbrella head 3, a first protection mechanism 4 and a second protection mechanism 5; The upper and lower parts of the outer side of the core rod 1 are respectively provided with a large insulating umbrella head 2 and a small insulating umbrella head 3, which are used to form a complete power insulator; The first protection mechanism 4 is arranged at the upper part of the core rod 1 near the top of the large insulating umbrella head 2, and is used to protect the large insulating umbrella head 2; The second protection mechanism 5 is arranged at the lower part of the core rod 1 near the top of the small insulating umbrella head 3 to protect the small insulating umbrella head 3 .

[0034] The first protection mechanism 4 specifically includes a protection shell 401, a connecting strip 402, a first clamp ring 404, a fixing tube 406, a top block 408 and an elastic member 407; Among them, two fan-shaped protective shells 401 are provided on both sides of the upper part of the core rod 1 in a contact manner, and the two protective shells 401 are fitted together to form a bowl shape for protecting the large insulating umbrella head 2; The surface of the protective shell 401 is evenly spaced with a plurality of leak holes 405 for dispersing and diverting rainwater; A connecting strip 402 is provided at one end of the contact position of the two protective shells 401, and a connecting groove 403 is provided at the other end. The connecting strip 402 contacts and matches with the connecting groove 403, so that the two protective shells 401 are tightly combined into a whole when the two protective shells 401 are connected to each other. The upper outer parts of the two protective shells 401 are both provided with a first clamping ring 404 fixed by bolts, which is used to connect and fix the two protective shells 401; A plurality of fixed tubes 406 are evenly spaced at the bottom of the protective shell 401 , and top blocks 408 are slidably disposed inside the fixed tubes 406 . Elastic members 407 are connected between the fixed tubes 406 and the top blocks 408 .

[0035] The second protection mechanism 5 specifically includes a protection frame 501, a connecting column 503, a guide ball 504, a limit frame 505 and a fixed ball 506; Among them, two protective frames 501 are provided in contact with each other at both sides of the lower part of the core rod 1, and the two protective frames 501 are connected and fixed by connecting bolts 502. A limit frame 505 is provided at the lower inner side of the protective frame 501, and the limit frame 505 is in contact with the small insulating umbrella head 3. The two protective frames 501 are fitted together to protect the small insulating umbrella head 3. The surface of the protection frame 501 is evenly spaced with a plurality of connecting columns 503, and the connecting columns 503 are evenly spaced and rotatably provided with a plurality of guide balls 504 for unloading the impact; A plurality of fixed balls 506 are evenly spaced at the bottom of the protection frame 501 near the side surface, for diverting rainwater.

[0036] Exemplarily, when in use, the two protective shells 401 are fixed to the upper part of the core rod 1 by the first clamping ring 404, and the connecting strips 402 and the connecting grooves 403 on the two protective shells 401 are mutually sleeved to ensure that they are fixed to form a whole, so that they naturally fit on the top of the large insulating umbrella head 2, and the top block 408 is in contact with the large insulating umbrella head 2. Then the two protective frames 501 are spliced ​​and sleeved on the middle part of the core rod 1 and fixed by connecting bolts 502. When the large insulating umbrella head 2 and the small insulating umbrella head 3 are impacted, the protective shell 401 or the protective frame 501 first contacts the impact object, which can protect the large insulating umbrella head 2 and the small insulating umbrella head 3, and when the protective shell 401 is impacted, the elastic member 407 and the top block 408 can absorb the impact force to avoid direct impact on the large insulating umbrella head 2. The guide ball 504 on the protective frame 501 is rotatably matched with the connecting column 503. When the impact When an object hits the protection frame 501, the free rotation of the guide ball 504 can relieve the impact and prevent the impact object from being stuck between the protection frame 501 and the large insulating umbrella head 2. When it rains, rainwater falling on the protection shell 401 can be dispersed and flowed out along the leakage hole 405 to leave the protection shell 401, avoiding rainwater accumulation and flowing down from the protection shell 401, and preventing rainwater from conducting electricity. When rainwater falls on the protection frame 501, the rainwater will flow downward along the connecting column 503. The guide ball 504 on the connecting column 503 can hinder the flow of rainwater, promote rainwater to form water droplets on the guide ball 504 and fall, and avoid rainwater gathering to form water flow conduction. The fixed balls 506 evenly spaced at the bottom of the protection frame 501 can promote the water flow to be dispersed and accumulated on the fixed balls 506 to leave the protection frame 501, further preventing rainwater from gathering on the protection shell 401 to form water flow and leaving the protection shell 401.

[0037] Example 2 like Figures 9 to 11 As shown, on the basis of Example 1, a force unloading mechanism 6 is further included, and the force unloading mechanism 6 specifically includes a fitting frame 601, a wind plate 602, a clamping plate 603 and a second clamping ring 604. A plurality of fitting frames 601 are evenly spaced and sleeved on the protective shell 401. The upper portion of the fitting frame 601 contacts the upper surface of the protective shell 401, and the lower surface of the fitting frame 601 contacts the upper surface of the large insulating umbrella head 2. The top of the fitting frame 601 is provided with a wind plate 602, and the bottom of the fitting frame 601 is provided with a clamping plate 603. The inner side of the second clamping ring 604 is evenly spaced with clamping grooves 605 of the same number as the fitting frame 601, and the bottoms of all the fitting frames 601 are fixedly clamped and matched with the clamping grooves 605 of the second clamping ring 604 through the clamping plates 603.

[0038] When multiple fitting frames 601 are arranged on the protective shell 401 under the action of the snap ring, the positions of the fitting frames 601 are relatively fixed. When a foreign object impacts the protective shell 401, the fitting frame 601 first contacts the impact object. Since the fitting frame 601 and the protective shell 401 slide together, the impact object hits the fitting frame 601. The structure formed by the fitting frame 601 and the snap ring can rotate under the action of the impact to unload the impact force and absorb energy. In the above process, when the fitting frame 601 contacts the top block 408, the top block 408 can compress the elastic member 407 into the fixed tube 406. Secondly, the wind plate 602 can make the fitting frame 601 rotate along the protective shell 401 when blown by the wind. The upper part of the fitting frame 601 scrapes and cleans the surface of the protective shell 401, and the bottom of the fitting frame 601 can clean the surface of the large insulating umbrella head 2 to avoid the accumulation of industrial dust, smoke particles and bird droppings on the surface of the large insulating umbrella head 2 after long-term use, thereby forming a conductive film and reducing the insulation.

[0039] like Fig.12 and Fig.13 As shown, on the basis of Example 1, it also includes a rotating mechanism 7, which specifically includes a fixed ring 701, a rotating column 702 and a rotating ball 703. A fixed ring 701 is provided in the middle of the core rod 1, and the fixed ring 701 is in contact with the protection frame 501. The protection frame 501 is rotatably provided with rotating columns 702 at even intervals near the core rod 1, and a limiting frame 505 is rotatably provided with rotating balls 703 at even intervals near the small insulating umbrella head 3.

[0040] The rotating ring and the rotating ball 703 can respectively replace the protection frame 501 and the limit frame 505 to rotate and contact with the core rod 1 and the small insulating umbrella head 3. When an impact object hits the protection frame 501, the protection frame 501 can rotate under the impact to further unload the impact and prevent the impact object from being stuck between the protection frame 501 and the large insulating umbrella head 2.

[0041] like Fig.14 and Fig.15 As shown, on the basis of Example 1, it specifically includes a first elastic ring 9, a limiting ring 10 and a second elastic ring 11. A cavity 8 is opened on the inner side of the large insulating umbrella head 2, and the cavity 8 is filled with the first elastic ring 9. The bottoms of the large insulating umbrella head 2 and the small insulating umbrella head 3 are both concave, and the bottoms of the concave parts of the large insulating umbrella head 2 and the small insulating umbrella head 3 are both provided with limiting rings 10, and the concave parts of the large insulating umbrella head 2 and the small insulating umbrella head 3 are both provided with second elastic rings 11.

[0042] The cavity 8 structure and the concave structure of the large insulating umbrella head 2 and the small insulating umbrella head 3 can ensure the impact strength of the large insulating umbrella head 2 and the small insulating umbrella head 3 as much as possible while saving materials, and the first elastic ring 9 and the second elastic ring 11 are filled inside, which can effectively provide a certain elastic strength for the large insulating umbrella head 2 and the small insulating umbrella head 3.

[0043] The protective shell 401 and the connecting column 503 are both made of elastic material.

[0044] The protective shell 401 and the connecting column 503 made of elastic material can absorb the impact force elastically while protecting the large insulating umbrella head 2 and the small insulating umbrella head 3, thereby reducing the potential energy of direct impact.

[0045] A plurality of baffles are evenly spaced along the central axis on the surface of the guide ball 504 .

[0046] The baffle on the surface of the guide ball 504 can further block the flow of rainwater on the guide ball 504 , and accelerate the accumulation and dripping of rainwater on the guide ball 504 .

[0047] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. An electric insulator with an impact energy absorption structure, characterized in that it comprises: A core rod (1), a large insulating umbrella head (2) and a small insulating umbrella head (3), wherein the large insulating umbrella head (2) and the small insulating umbrella head (3) are respectively arranged at the upper and lower parts of the outer side of the core rod (1), so as to form a complete power insulator; A first protection mechanism (4), wherein the upper portion of the core rod (1) is provided with a first protection mechanism (4) near the top of the large insulating umbrella head (2) for protecting the large insulating umbrella head (2); A second protective mechanism (5) is provided at a position on the lower part of the core rod (1) close to the top of the small insulating umbrella head (3) to protect the small insulating umbrella head (3).

2. The power insulator with impact energy absorption structure according to claim 1, characterized in that: The first protection mechanism (4) specifically also includes: A protective shell (401), two fan-shaped protective shells (401) are provided in contact with each other on both sides of the upper portion of the core rod (1), and a plurality of leakage holes (405) are evenly spaced on the surface of the protective shell (401); A connecting strip (402), wherein one end of the position where the two protective shells (401) contact each other is provided with a connecting strip (402) and the other end is provided with a connecting groove (403); A first clamping ring (404), wherein the upper outer parts of the two protective shells (401) are both clamped with a first clamping ring (404) fixed by bolts; Fixed tubes (406), a plurality of fixed tubes (406) are evenly spaced at the bottom of the protective shell (401); A top block (408) is slidably provided inside the fixed tube (406); The elastic member (407) is connected between the fixing tube (406) and the top block (408).

3. The power insulator with impact energy absorption structure according to claim 2, characterized in that: The second protection mechanism (5) specifically further comprises: Protection frames (501), two protection frames (501) are provided in a contact manner on both sides of the lower part of the core rod (1), the two protection frames (501) are fitted together to protect the small insulating umbrella head (3), and the two protection frames (501) are connected and fixed by connecting bolts (502); Connecting posts (503), a plurality of connecting posts (503) are evenly spaced on the surface of the protection frame (501); A plurality of flow guide balls (504) are evenly spaced and rotatably provided on the connecting column (503); A limiting frame (505), a limiting frame (505) is provided at the lower inner part of the protection frame (501), and the limiting frame (505) is in contact with the small insulating umbrella head (3); Fixed balls (506): a plurality of fixed balls (506) are evenly spaced and arranged at positions near the side of the bottom of the protection frame (501).

4. The power insulator with impact energy absorption structure according to claim 3 is characterized in that: Also includes The force unloading mechanism (6) specifically comprises: A fitting frame (601), wherein a plurality of fitting frames (601) are evenly spaced and sleeved on the protective shell (401), wherein the upper portion of the fitting frame (601) contacts the upper surface of the protective shell (401), and the lower surface of the fitting frame (601) contacts the upper surface of the large insulating umbrella head (2); A wind plate (602), the top of the fitting frame (601) is provided with a wind plate (602); A card plate (603), a card plate (603) is provided at the bottom of the fitting frame (601); A second snap ring (604), the inner side of which is evenly spaced with snap grooves (605) of the same number as the fitting frame (601), and the bottoms of all fitting frames (601) are fixedly snap-fitted with the snap grooves (605) of the second snap ring (604) via a snap plate (603).

5. The power insulator with impact energy absorption structure according to claim 4, characterized in that: The invention also includes a rotating mechanism (7), wherein the rotating mechanism (7) specifically includes: A fixing ring (701), wherein a fixing ring (701) is provided in the middle of the core rod (1), and the fixing ring (701) is in contact with and cooperates with the protection frame (501); The rotating columns (702) are evenly spaced and rotatably provided at positions of the protection frame (501) close to the core rod (1); Rotating balls (703) are evenly and rotatably provided at positions of the limiting frame (505) close to the small insulating umbrella head (3).

6. The power insulator with impact energy absorption structure according to claim 5, characterized in that include: A first elastic ring (9), a cavity (8) is opened on the inner side of the large insulating umbrella head (2), and the cavity (8) is filled with the first elastic ring (9); A limiting ring (10), the bottoms of the large insulating umbrella head (2) and the small insulating umbrella head (3) are both concave, and the bottoms of the concave parts of the large insulating umbrella head (2) and the small insulating umbrella head (3) are both provided with a limiting ring (10); A second elastic ring (11) is provided at the concave portion of the large insulating umbrella head (2) and the small insulating umbrella head (3).

7. The power insulator with impact energy absorption structure according to claim 6, characterized in that: The protective shell (401) and the connecting column (503) are both made of elastic material.

8. The power insulator with impact energy absorption structure according to claim 7, characterized in that: The surface of the guide ball (504) is provided with a plurality of baffles at even intervals along the central axis.

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