Insulating sheath of lightning arrester

Abstract

The embodiment of the utility model provides a lightning arrester insulating sheath, and relates to the technical field of power equipment, the lightning arrester insulating sheath comprises a sheath body and a first connecting assembly; an accommodating cavity is formed in the sheath body, a first opening and a second opening which are communicated with the accommodating cavity are respectively formed in two sides of the sheath body, and the first opening is used for connecting a lightning arrester with a cable; the first connecting assembly is arranged at a third opening formed along the side wall of the sheath body, and the first connecting assembly is configured to close the third opening when the lightning arrester is sleeved with the second opening end of the sheath body. According to the lightning arrester insulating sheath provided by the embodiment of the invention, the exposed part on the lightning arrester can be subjected to insulation protection.

Description

Technical Field

[0001] The present application relates to the technical field of power equipment, and in particular to an insulating sheath of a lightning arrester. Background Art

[0002] A lightning arrester is an electrical device used to protect various electrical equipment in the power system from damage caused by lightning overvoltage, operating overvoltage or power frequency transient overvoltage impact.

[0003] In existing technology, a lightning arrester is typically connected between the cable and the ground, in parallel with the electrical equipment being protected. When the overvoltage reaches a preset threshold, the arrester limits the overvoltage amplitude, protecting the equipment. Once the voltage returns to normal, the arrester quickly returns to its original state, ensuring normal power supply to the power system.

[0004] However, the connection terminals of the existing lightning arrester connected to the cable are exposed and not insulated, which can easily discharge the cable and cause the lightning arrester to fail to function normally. Utility Model Content

[0005] In view of this, an embodiment of the present application provides an insulating sheath for a lightning arrester, which can provide insulation protection for exposed parts of the lightning arrester.

[0006] To achieve the above objectives, an embodiment of the present application provides an insulating sheath for a lightning arrester, which adopts the following technical solutions:

[0007] The embodiment of the present application provides an insulating sheath of a lightning arrester, comprising a sheath body and a first connecting assembly:

[0008] The sheath body has an accommodating cavity, and two sides of the sheath body are respectively provided with a first opening and a second opening connected to the accommodating cavity, wherein the first opening is used for connecting the lightning arrester to the cable;

[0009] The first connecting component is arranged at a third opening opened along the side wall of the sheath body, and the first connecting component is configured to sleeve the second opening end of the sheath body onto the arrester through the second opening.

[0010] In a possible implementation, the insulating jacket of the lightning arrester further includes a mounting ring, which is disposed at the second opening. A mounting assembly is provided on the mounting ring, and the mounting assembly is configured to fix the jacket body on the lightning arrester.

[0011] In a possible implementation, a plurality of slots are circumferentially spaced apart on the inner surface of the mounting ring;

[0012] The mounting assembly includes an elastic member and a clamping block. The clamping block is correspondingly arranged in each of the clamping slots, and the clamping block is connected to the clamping slot through the elastic member so that the clamping block can extend from or retract into the clamping slot.

[0013] In a possible implementation, the elastic member is a spring.

[0014] In a possible implementation, a second connecting assembly is provided on the mounting ring, and the second connecting assembly is configured to close the mounting ring when the second open end of the sheath body is sleeved on the arrester.

[0015] In a possible implementation, the second connecting assembly includes a clamping groove and a clamping block, the clamping groove and the clamping block are respectively arranged at both side ends of the mounting ring, and the clamping groove matches the clamping block to keep the mounting ring in a closed state.

[0016] In a possible implementation, an annular groove is formed on the second opening to accommodate the mounting ring.

[0017] In one possible implementation, the sheath body includes a first sheath, a guide portion, and a second sheath, wherein the first sheath, the guide portion, and the second sheath are sequentially connected, the first sheath is provided with the first opening, the second sheath is provided with the second opening, and the caliber of the first opening is smaller than the caliber of the second opening;

[0018] The guide portion has an inclined cavity wall that matches the shape of the arrester.

[0019] In one possible implementation, the first connecting component includes a mounting plate, which is provided on both side ends of the sheath body at the third opening, wherein a clamping column is provided on one side of the mounting plate, and a mounting hole is provided on the other side of the mounting plate, and the mounting hole matches the clamping column to keep the third opening closed.

[0020] In a possible implementation, a sealing ring is provided at the first opening.

[0021] An embodiment of the present application provides an insulating sheath of a lightning arrester, comprising a sheath body and a first connecting assembly, wherein the sheath body is respectively provided with a first opening, a second opening and a third opening, and the first connecting assembly is arranged at the third opening.

[0022] Before installing the lightning arrester, the staff can put the second open end of the sheath body on the lightning arrester; wait until the sheath body stops at a suitable position, that is, wait until the sheath body completely covers the exposed part of the lightning arrester, operate the first connecting component to close the third opening, and then make the sheath body as a whole in a closed state. At this time, the sheath body and the lightning arrester are connected as a whole, and the sheath body can insulate and protect the exposed part of the lightning arrester; and the preset first opening on the sheath body can be used for connecting the lightning arrester to the cable to ensure that the lightning arrester can work normally.

[0023] Compared with the arrangement of lightning arresters in the prior art, the insulating sheath of the lightning arrester provided in the embodiment of the present application can insulate and protect the exposed parts of the lightning arrester, thereby preventing the lightning arrester from discharging to the cable during use, which would cause the lightning arrester to be unable to be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiments of the present application, and the embodiments of the present application are not limited to the specific implementation described below.

[0025] Figure 1 A schematic diagram of the structure of the insulating sheath of the lightning arrester provided in an embodiment of the present application;

[0026] Figure 2 A top view of the insulating sheath of the lightning arrester provided in an embodiment of the present application;

[0027] Figure 3 for Figure 1 A partial enlarged view of point A in the middle;

[0028] Figure 4 for Figure 1 Schematic diagram of the structure of the mounting ring.

[0029] Description of reference numerals:

[0030] 100-sheath body;

[0031] 110-first sheath;

[0032] 111-first opening;

[0033] 120-guide portion;

[0034] 130- second sheath;

[0035] 131 - second opening; 132 - annular groove;

[0036] 200-first connection component;

[0037] 210-mounting plate;

[0038] 211-mounting hole;

[0039] 220-clamping column;

[0040] 300-Mounting ring;

[0041] 310-Installation components;

[0042] 311-elastic member; 312-block;

[0043] 320-card slot;

[0044] 330-second connecting component;

[0045] 331-clamping slot; 332-clamping block;

[0046] 400-seal ring;

[0047] 500-The third opening.

[0048] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the embodiments of the present application in any way, but rather to illustrate the concepts of the present application for those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application and how the technical solutions in the embodiments of the present application solve the above-mentioned technical problems will be clearly and completely described below with specific embodiments and in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0050] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0051] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0052] The terms "first," "second," "third," "fourth," and so on (if any) in the description and claims of the embodiments of the present application and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in orders other than those illustrated or described herein.

[0053] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0054] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0055] A lightning arrester is an electrical device used to protect various electrical equipment in the power system from damage caused by lightning overvoltage, operating overvoltage or power frequency transient overvoltage impact.

[0056] In existing technology, a lightning arrester is typically connected between the cable and the ground, in parallel with the electrical equipment being protected. When the overvoltage reaches a preset threshold, the arrester limits the overvoltage amplitude, protecting the equipment. Once the voltage returns to normal, the arrester quickly returns to its original state, ensuring normal power supply to the power system.

[0057] However, the connection terminals of the existing lightning arrester connected to the cable are exposed and not insulated, which can easily discharge the cable and cause the lightning arrester to fail to function normally.

[0058] Based on this, an embodiment of the present application provides an insulating sheath of a lightning arrester, comprising a sheath body and a first connecting component, wherein the sheath body is respectively provided with a first opening, a second opening and a third opening, and the first connecting component is arranged at the third opening.

[0059] Before installing the lightning arrester, the staff can put the second open end of the sheath body on the lightning arrester; wait until the sheath body stops at a suitable position, that is, wait until the sheath body completely covers the exposed part of the lightning arrester, operate the first connecting component to close the third opening. At this time, the sheath body and the lightning arrester are connected as a whole, and the sheath body can insulate and protect the exposed part of the lightning arrester; and the preset first opening on the sheath body can be used for connecting the lightning arrester to the cable to ensure that the lightning arrester can work normally.

[0060] Compared with the arrangement of lightning arresters in the prior art, the insulating sheath of the lightning arrester provided in the embodiment of the present application can insulate and protect the exposed parts of the lightning arrester, thereby preventing the lightning arrester from discharging to the cable during use, which would cause the lightning arrester to be unable to be used normally.

[0061] The following detailed description of the technical solutions of the embodiments of the present application is given with reference to the accompanying drawings. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0062] Reference Figure 1 and Figure 2 As shown, an embodiment of the present application provides an insulating sheath of a lightning arrester, comprising a sheath body 100 and a first connecting component 200; the sheath body 100 has a accommodating cavity, and the two sides of the sheath body 100 are respectively provided with a first opening 111 and a second opening 131 connected to the accommodating cavity, and the first opening 111 is used for connecting the lightning arrester to the cable; the first connecting component 200 is arranged at a third opening 500 opened along the side wall of the sheath body 100, and the first connecting component 200 is configured to close the third opening 500 when the second opening 131 end of the sheath body 100 is sleeved on the lightning arrester.

[0063] In an embodiment of the present application, before installing the lightning arrester, the staff can put the second opening 131 end of the sheath body 100 on the lightning arrester; when the sheath body 100 stops at a suitable position, that is, when the sheath body 100 completely covers the exposed part of the lightning arrester, operate the first connecting component 200 to close the third opening 500, thereby making the sheath body as a whole in a closed state. At this time, the sheath body 100 and the lightning arrester are connected as a whole, and the sheath body 100 can insulate and protect the exposed part of the lightning arrester; and the preset first opening 111 on the sheath body 100 can be used for connecting the lightning arrester to the cable to ensure that the lightning arrester can work normally.

[0064] Compared with the arrangement of lightning arresters in the prior art, the insulating sheath of the lightning arrester provided in the embodiment of the present application can insulate and protect the exposed parts of the lightning arrester, thereby preventing the lightning arrester from discharging to the cable during use, which would cause the lightning arrester to be unable to be used normally.

[0065] Reference Figure 1 、 Figure 3 and Figure 4 As shown, in some embodiments, a mounting ring 300 is further included. The mounting ring 300 is disposed at the second opening 131 , and a mounting assembly 310 is disposed on the mounting ring 300 . The mounting assembly 310 is configured to fix the sheath body 100 on the arrester.

[0066] Since the working environment of the lightning arrester is mostly outdoors, if the sheath body 100 is simply clipped onto the lightning arrester, it is easily affected by the environment and may deviate or even fall off, resulting in a significant reduction in the insulation protection effect of the lightning arrester insulating sheath on the exposed parts of the lightning arrester. Therefore, in the above embodiment, a mounting ring 300 is provided at the second opening 131, and a mounting assembly 310 is provided on the mounting ring 300 to improve the stability of the lightning arrester insulating sheath during use.

[0067] Reference Figure 4 As shown, further, in some embodiments, a plurality of slots 320 are circumferentially spaced apart on the inner surface of the mounting ring 300; the mounting assembly 310 includes an elastic member 311 and a block 312, the block 312 is correspondingly arranged in each slot 320, and the block 312 is connected to the slot 320 through the elastic member 311 so that the block 312 can extend or retract into the slot 320.

[0068] It is understood that, in the present application, there is no limitation on the specific structure of the mounting assembly 310 and the arrangement of the mounting assembly 310 on the mounting ring 300, as long as the sheath body 100 is fixed to the arrester. Specifically, in the above embodiment, the mounting ring 300 is provided with a card slot 320, and the card block 312 is correspondingly disposed in each card slot 320, wherein the card block 312 is used to clamp the sheath body 100 to the arrester, thereby simplifying the assembly operation between the sheath body 100 and the arrester.

[0069] At the same time, an elastic member 311 is provided between the block 312 and the slot 320. In a specific implementation, when the staff installs the arrester insulating jacket onto an arrester with a slightly larger diameter, the block 312 is squeezed by the arrester and retracts into the slot 320. The elastic member 311 is compressed and generates elastic force. The block 312 has a tendency to return to its initial position after receiving the elastic force from the elastic member 311. When the staff removes the arrester insulating jacket from the arrester, the block 312 is reset to its initial position. Therefore, the provision of the elastic member 311 expands the applicable scope of the arrester insulating jacket, making it applicable to arresters of different diameters.

[0070] Furthermore, in some embodiments, the elastic member 311 is a spring.

[0071] It is understood that in this application, there is no limitation on the specific structure of the elastic member 311. Specifically, in the above embodiment, the elastic member 311 is set as a spring, which takes advantage of the high elasticity and easy processing of the spring to ensure the reset of the block 312 while saving processing costs.

[0072] Reference Figure 4 As shown, in some embodiments, a second connection assembly 330 is provided on the mounting ring 300 , and the second connection assembly 330 is configured to close the mounting ring 300 when the second opening 131 end of the sheath body 100 is sleeved on the arrester.

[0073] In the above embodiment, a second connecting assembly 330 is provided on the mounting ring 300 to adjust the mounting ring 300 following the state of the sheath body 100, that is, the mounting ring 300 is opened when the sheath body 100 is opened through the third opening 500, and the mounting ring 300 is closed when the sheath body 100 is closed through the third opening 500, thereby simplifying the assembly operation between the sheath body 100 and the lightning arrester.

[0074] Further, refer to Figure 4 As shown, in some embodiments, the second connecting component 330 includes a clamping groove 331 and a clamping block 332, and the clamping groove 331 and the clamping block 332 are respectively arranged at the two side ends of the mounting ring 300, and the clamping groove 331 matches the clamping block 332 to keep the mounting ring 300 in a closed state.

[0075] It is understood that, in this application, the specific structure of the second connecting assembly 330 is not limited, as long as it can maintain the mounting ring 300 in a closed state. Specifically, in the above embodiment, a clamping groove 331 and a clamping block 332 are provided. When the clamping block 332 is inserted into the clamping groove 331, the mounting ring 300 is in a closed state; when the clamping block 332 is removed from the clamping groove 331, the mounting ring 300 is in an open state, simplifying the operations required to change the state of the mounting ring 300.

[0076] Meanwhile, in a specific implementation, the clamping block 332 and the clamping groove 331 should be in an interference fit to improve the fitting strength between the clamping block 332 and the clamping groove 331 .

[0077] Reference Figure 3 As shown, in some embodiments, an annular groove 132 is defined on the second opening 131 to accommodate the mounting ring 300 .

[0078] Here, the mounting ring 300 is accommodated in the annular groove 132 to prevent the volume of the mounting ring 300 from leaving a large gap between the sheath body 100 and the lightning arrester, causing sand and gravel in the external environment to enter the sheath body 100 and affect the connection between the lightning arrester and the cable.

[0079] Reference Figure 1 As shown, in some embodiments, the sheath body 100 includes a first sheath 110, a guide portion 120 and a second sheath 130, and the first sheath 110, the guide portion 120 and the second sheath 130 are connected in sequence, a first opening 111 is opened on the first sheath 110, and a second opening 131 is opened on the second sheath 130, and the diameter of the first opening 111 is smaller than the diameter of the second opening 131; the guide portion 120 has an inclined cavity wall that matches the shape of the lightning arrester.

[0080] The caliber of the first opening 111 is designed to be smaller than the caliber of the second opening 131, and the guide portion 120 has an inclined cavity wall that matches the shape of the lightning arrester, so that the fit between the sheath body 100 and the lightning arrester is tighter. On the one hand, there is no need to reserve too much installation space for the insulating sheath of the lightning arrester; on the other hand, the overall sealing of the insulating sheath of the lightning arrester is improved, preventing sand and gravel in the external environment from entering the sheath body 100 and affecting the connection between the lightning arrester and the cable.

[0081] Reference Figure 1 and Figure 2 As shown, in some embodiments, the first connecting component 200 includes a mounting plate 210, which is disposed on both side ends of the sheath body 100 located at the third opening 500, wherein a clamping column 220 is provided on one side of the mounting plate 210, and a mounting hole 211 is provided on the other side of the mounting plate 210, and the mounting hole 211 matches the clamping column 220 to keep the third opening 500 closed.

[0082] It is understood that, in the present application, the specific structure of the first connecting assembly 200 is not limited, as long as the third opening 500 can be kept closed. Specifically, in the above embodiment, the mounting hole 211 and the clamping column 220 are provided. When the clamping column 220 is inserted into the mounting hole 211, the third opening 500 is in a closed state; when the clamping column 220 is withdrawn from the mounting hole 211, the third opening 500 is in an open state, which simplifies the operation required to install the lightning arrester insulating sheath on the lightning arrester.

[0083] Reference Figure 2 As shown, in some embodiments, a sealing ring 400 is provided at the first opening 111 .

[0084] Here, a sealing ring 400 is additionally provided at the first opening 111. Since the arrester is usually installed vertically on the ground, the first opening 111 is located at the top of the overall insulating sheath of the arrester, and the sealing ring 400 can further improve the sealing performance of the overall insulating sheath of the arrester, and prevent rainwater or sand and gravel in the external environment from entering the sheath body 100 and affecting the connection between the arrester and the cable.

[0085] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the embodiments of the present application can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in the embodiments of the present application can be achieved, and this document is not limited here.

[0086] The above specific implementation manner does not constitute a limitation on the protection scope of the embodiments of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations, and substitutions can be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the principles of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A lightning arrester insulating sheath, characterized in that: It comprises a sheath body (100) and a first connecting component (200): The sheath body (100) has an accommodating cavity therein, and a first opening (111) and a second opening (131) communicating with the accommodating cavity are respectively provided on both sides of the sheath body (100), wherein the first opening (111) is used for connecting the lightning arrester to the cable; The first connecting component (200) is arranged at a third opening (500) opened along the side wall of the sheath body (100), and the first connecting component (200) is configured to close the third opening (500) when the second opening (131) end of the sheath body (100) is sleeved on the lightning arrester.

2. The lightning arrester insulating sheath according to claim 1, characterized in that: The invention also includes a mounting ring (300), the mounting ring (300) is arranged at the second opening (131), and a mounting assembly (310) is arranged on the mounting ring (300), and the mounting assembly (310) is configured to fix the sheath body (100) on the lightning arrester.

3. The lightning arrester insulating sheath according to claim 2, characterized in that: The inner surface of the mounting ring (300) is provided with a plurality of slots (320) spaced apart in the circumferential direction; The mounting assembly (310) comprises an elastic member (311) and a clamping block (312), wherein the clamping block (312) is correspondingly arranged in each of the clamping slots (320), and the clamping block (312) is connected to the clamping slot (320) via the elastic member (311), so that the clamping block (312) can extend from or retract into the clamping slot (320).

4. The lightning arrester insulating sheath according to claim 3, characterized in that: The elastic member (311) is a spring.

5. The lightning arrester insulating sheath according to claim 2, characterized in that: A second connection assembly (330) is provided on the mounting ring (300), and the second connection assembly (330) is configured to close the mounting ring (300) when the second opening (131) end of the sheath body (100) is sleeved on the arrester.

6. The lightning arrester insulating sheath according to claim 5, characterized in that: The second connecting assembly (330) comprises a clamping groove (331) and a clamping block (332), wherein the clamping groove (331) and the clamping block (332) are respectively arranged at the two side ends of the mounting ring (300), and the clamping groove (331) matches the clamping block (332) to keep the mounting ring (300) in a closed state.

7. The lightning arrester insulating sheath according to claim 2, characterized in that: An annular groove (132) is provided on the second opening (131) to accommodate the mounting ring (300).

8. The lightning arrester insulating sheath according to any one of claims 1 to 7, characterized in that: The sheath body (100) comprises a first sheath (110), a guide portion (120) and a second sheath (130); the first sheath (110), the guide portion (120) and the second sheath (130) are connected in sequence; the first sheath (110) is provided with the first opening (111); the second sheath (130) is provided with the second opening (131); the diameter of the first opening (111) is smaller than the diameter of the second opening (131); The guide portion (120) has an inclined cavity wall matching the shape of the arrester.

9. The lightning arrester insulating sheath according to any one of claims 1 to 7, characterized in that: The first connecting component (200) includes a mounting plate (210), and the mounting plate (210) is arranged on both side ends of the sheath body (100) located at the third opening (500), wherein a clamping column (220) is provided on one side of the mounting plate (210), and a mounting hole (211) is opened on the other side of the mounting plate (210), and the mounting hole (211) matches the clamping column (220) to keep the third opening (500) in a closed state.

10. The lightning arrester insulating sheath according to any one of claims 1 to 7, characterized in that: A sealing ring (400) is provided at the first opening (111).

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