Composite insulator

Abstract

The utility model relates to the field of composite insulators, in particular to a composite insulator, a core rod assembly is provided with a plurality of detachable umbrella skirt sheaths, the top of each umbrella skirt sheath is fixedly provided with an upper mounting piece, each upper mounting piece is provided with a plurality of mounting cavities, and the bottom of each umbrella skirt sheath is fixedly provided with a lower mounting piece. And lower mounting blocks corresponding to the mounting cavities are adaptively arranged at the bottoms of the lower mounting pieces. According to the utility model, through the adaptive clamping between the mounting cavity and the lower mounting block, the umbrella skirt sheaths can be sequentially stacked and sleeved on the core rod assembly, and through the adaptive arrangement between the child combination sleeve and the mother combination sleeve, the fixation of the umbrella skirt sheaths can be realized; the assembling mode that the umbrella skirt sheath is installed on the core rod assembly is firm and very convenient, the umbrella skirt sheath can be conveniently replaced in the later period, overall replacement is not needed, and the maintenance cost in the later period is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of composite insulators, in particular to a composite insulator. Background Art

[0002] Composite insulators typically consist of three components: a fiberglass epoxy resin lead rod, a silicone rubber shed, and hardware. The silicone rubber shed is integrally molded and tightly bonded to the core rod, eliminating the problem of electrical breakdown at the interface. Hardware connects and secures the insulator, ensuring stable operation within the transmission line.

[0003] The shed sheaths of conventional insulators currently on the market are typically fixed to the core rod. When the sheds become damaged, aged, or severely contaminated, the entire insulator must often be replaced, rather than just the damaged shed sheath. This increases maintenance costs, as replacing the entire insulator is typically more expensive than replacing individual components. Therefore, an insulator with a replaceable shed sheath is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a composite insulator.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A composite insulator comprises a core rod assembly and a shed sheath. A plurality of detachable shed sheaths are mounted on the core rod assembly. An upper mounting piece is fixedly provided on the top of each shed sheath. A plurality of mounting cavities are defined on the upper mounting piece. A lower mounting piece is fixedly provided on the bottom of each shed sheath. A lower mounting block is adaptively provided at the bottom of each lower mounting piece corresponding to the mounting cavity. A sub-assembly sleeve and a mother assembly sleeve are assembled on the top of the uppermost shed sheath of the core rod assembly. A sub-assembly sleeve is fixedly provided on the bottom of the sub-assembly sleeve. A mother assembly sleeve is fixedly provided on the bottom of the mother assembly sleeve. The sub-assembly block and the mother assembly sleeve are adaptively spliced ​​and adapted to the mounting cavities.

[0007] In addition, the preferred structure is that the top of the core rod assembly is fixedly provided with an upper hardware, the bottom of the core rod assembly is fixedly provided with a lower hardware, the bottom of the core rod assembly is located above the lower hardware and is fixedly sleeved with a mounting base, and the mounting base is adapted to the lower mounting block.

[0008] In addition, a preferred structure is that a protective cover is fixedly provided on the top of the umbrella skirt sheath outside the upper mounting piece, and the height of the protective cover is the same as the sum of the heights of the upper mounting piece and the lower mounting piece.

[0009] In addition, the preferred structure is that the umbrella skirt sheaths are stacked and installed on the core rod assembly in sequence, the sub-assembly sheath and the mother assembly sheath are both detachable, and the sub-assembly sheath and the mother assembly sheath are both adapted to be combined and installed on the top of the uppermost umbrella skirt sheath.

[0010] In addition, a preferred structure is that a guide piece is fixedly provided in the middle of the sub-assembly sleeve and the mother assembly sleeve, and guide grooves are adapted to correspond to the guide piece on both sides of the core rod assembly.

[0011] In addition, a preferred structure is that both sides of the sub-assembly sleeve are fixedly and vertically provided with clamping columns, and both sides of the mother assembly sleeve are adapted to open clamping cavities corresponding to the clamping columns.

[0012] In addition, a preferred structure is that the tops of the sub-assembly sleeve and the mother assembly sleeve are fixed with fixing frames of different heights, and limiting members are movably provided in the fixing frames, and the limiting members are adapted to be inserted into the guide grooves.

[0013] In addition, a preferred structure is that anti-dropping parts are fixedly provided on both sides of the inner wall of the fixing frame, and anti-dropping cavities are adapted to correspond to the anti-dropping parts on both sides of the limiting member.

[0014] In addition, the preferred structure is that the height of the female combination sleeve is greater than that of the sub-combination sleeve, and fixing plates are fixed on both sides of the female combination sleeve, and through holes are provided on the fixing plates, and screws inserted downward are adapted to be provided in the through holes, and threaded holes are adapted to be provided on the top of the sub-combination sleeve.

[0015] A method for manufacturing a composite insulator comprises the following steps:

[0016] S1: The mandrel assembly, upper fittings, and lower fittings are all stamped and formed in the factory and then sent to the site for assembly together with the shed sheath.

[0017] S2: Slide the shed cover downward from the top of the core rod assembly onto the core rod assembly. When the shed cover contacts the mounting base, rotate the shed cover so that the lower mounting block at the bottom of the shed cover fits into the mounting cavity on the mounting base.

[0018] S3: stack and install multiple shed covers on top of the installed shed cover, and clamp the lower mounting blocks at the bottom of all shed covers into the mounting cavity;

[0019] S4: After all shed covers are installed, insert the guide pieces on the sub-assembly cover and the mother assembly cover into the guide grooves;

[0020] S5: When the guide pieces on the sub-assembly sleeve and the female assembly sleeve are inserted into the guide grooves, the clamping posts on the sub-assembly sleeve can be adapted and inserted into the clamping cavities in the female assembly sleeve at the same time, and then the screws are passed through the fixing plate and inserted into the threaded holes;

[0021] S6: Move the sub-assembly sleeve and the mother assembly sleeve downward at the same time, and when they move to the bottom, push the limit pieces on the fixing frames on both sides into the guide grooves so that the ends of the limit pieces enter the guide grooves, thereby completing the assembly of the product.

[0022] The beneficial effects of the present invention are as follows: the shed sheaths can be stacked and sleeved on the core rod assembly in sequence through the adaption card arrangement between the mounting cavity and the lower mounting block, and the shed sheaths can be fixed through the adaption arrangement between the sub-assembly sleeve and the mother assembly sleeve. This assembly method of installing the shed sheath on the core rod assembly is not only firm but also very convenient, and is convenient for later replacement of the shed sheath without the need for overall replacement, thereby reducing later maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a composite insulator proposed by the utility model;

[0024] Figure 2 This is a structural diagram of a shed sheath of a composite insulator proposed in the utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of the shed skirt sheath viewed from above;

[0026] Figure 4 This is a structural schematic diagram of a core rod assembly, upper hardware and lower hardware of a composite insulator proposed in the utility model;

[0027] Figure 5 This is a structural diagram of a sub-assembly sleeve and a mother-assembly sleeve of a composite insulator proposed in the utility model;

[0028] Figure 6 for Figure 5 Schematic diagram of explosion structure in ;

[0029] Figure 7 This is a structural diagram of a sub-assembly sleeve of a composite insulator proposed by the utility model;

[0030] Figure 8 The present invention provides a schematic structural diagram of a female composite insulator sleeve.

[0031] In the figure: 1 core rod assembly, 11 guide groove, 12 mounting base, 2 umbrella skirt sheath, 21 upper mounting part, 211 mounting cavity, 22 protective cover, 23 lower mounting part, 231 lower mounting block, 3 upper hardware, 31 lower hardware, 4 sub-combination sleeve, 41 sub-mounting block, 42 ​​clamping column, 43 threaded hole, 5 female combination sleeve, 51 female mounting block, 52 clamping cavity, 53 fixing plate, 531 through hole, 54 screw, 6 fixing frame, 601 anti-falling part, 61 limit part, 611 anti-falling cavity, 62 guide part. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figure 1-8 A composite insulator includes a core rod assembly 1 and a shed sheath 2. Multiple detachable shed sheaths 2 are mounted on the core rod assembly 1. An upper mounting member 21 is fixedly mounted on the top of each shed sheath 2, each having multiple mounting cavities 211 defined therein. A lower mounting member 23 is fixedly mounted on the bottom of each shed sheath 2, each having a lower mounting block 231 adapted to fit the mounting cavities 211. A sub-assembly sleeve 4 and a female assembly sleeve 5 are assembled on the top of the uppermost shed sheath 2 of the core rod assembly 1. A sub-assembly sleeve 4 is fixedly mounted on the bottom of the sub-assembly sleeve 4, while a female assembly sleeve 5 is fixedly mounted on the bottom of the female assembly sleeve 5. The sub-assembly sleeve 4 and the female assembly sleeve 5 are adapted to fit the mounting cavities 211.

[0034] The top of the mandrel assembly 1 is fixedly provided with an upper hardware 3, and the bottom of the mandrel assembly 1 is fixedly provided with a lower hardware 31. The bottom of the mandrel assembly 1 is located above the lower hardware 31 and is fixedly provided with a mounting base 12, which is adapted to fit the lower mounting block 231. It is worth noting that the specific materials of the mandrel assembly 1, the shed sheath 2, the upper hardware 3, and the lower hardware 31 are all existing technologies and do not constitute the main technical problem to be solved by the present invention, so they are not described in detail.

[0035] Among them, the top of the shed sheath 2 is located outside the upper mounting member 21 and is fixedly provided with a protective cover 22, and the height of the protective cover 22 is the same as the sum of the heights of the upper mounting member 21 and the lower mounting member 23. The provision of the protective cover 22 can ensure that the connection between the shed sheaths 2 is stable when the shed sheaths 2 are installed.

[0036] The shed sheaths 2 are stacked and mounted on the mandrel assembly 1. The sub-assembly sheath 4 and the mother assembly sheath 5 are both detachable and fit together on top of the topmost shed sheath 2. The upper hardware 3 is smaller than the inner diameter of the shed sheath 2, allowing the shed sheath to pass through the upper hardware 3 and be mounted on the mandrel assembly 11.

[0037] A guide member 62 is fixedly provided in the middle of each of the sub-assembly sleeve 4 and the mother assembly sleeve 5, and guide grooves 11 are provided on both sides of the core rod assembly 1 to adapt to the guide members 62. The adaption between the guide grooves 11 and the guide members 62 facilitates the user's installation of the sub-assembly sleeve 4 and the mother assembly sleeve 5.

[0038] Wherein, both sides of the sub-assembly sleeve 4 are fixedly and vertically provided with clamping columns 42 , and both sides of the mother assembly sleeve 5 are adapted to open clamping cavities 52 corresponding to the clamping columns 42 .

[0039] The tops of both the sub-assembly sleeve 4 and the mother assembly sleeve 5 are fixedly mounted with mounting brackets 6 of varying heights. Positioning members 61 are movably mounted within the mounting brackets 6, and the positioning members 61 are adapted to be inserted into the guide slots 11. Anti-dropout members 601 are fixedly mounted on both sides of the inner wall of the mounting brackets 6, and anti-dropout cavities 611 are adapted to correspond to the anti-dropout members 601 on both sides of the positioning members 61.

[0040] Among them, the height of the female combination sleeve 5 is greater than that of the sub-combination sleeve 4, and fixing plates 53 are fixed on both sides of the female combination sleeve 5. Through holes 531 are provided on the fixing plates 53, and screws 54 inserted downward are adapted to be provided in the through holes 531, and threaded holes 43 are adapted to be provided on the top of the sub-combination sleeve 4.

[0041] A method for manufacturing composite insulators involves stamping the core rod assembly, upper hardware, and lower hardware into shape in the factory and then transporting them to the site for assembly along with the shed sheath. The shed sheath is fitted downwardly over the core rod assembly from the top. When the shed sheath contacts the mounting base, the sheath is rotated so that the lower mounting block at the bottom of the shed sheath fits into the mounting cavity on the mounting base.

[0042] Multiple shed covers are stacked and installed on top of the installed shed cover, and the lower mounting blocks at the bottom of all shed covers are clamped into the mounting cavity. When all shed covers are installed, the guide pieces on the sub-assembly cover and the mother assembly cover are inserted into the guide grooves.

[0043] When the guide members on both the sub-assembly and the mother assembly are inserted into the guide slots, the clamping posts on the sub-assembly can be simultaneously inserted into the clamping cavities of the mother assembly. Screws are then inserted through the fixing plate and into the threaded holes. Simultaneously, the sub-assembly and mother assembly are moved downward. When they reach the bottom, the stoppers on the two fixing brackets are pushed into the guide slots, so that the ends of the stoppers enter the guide slots. This completes the assembly of the product.

[0044] In this embodiment, when the user needs to install the shed sheath 2 on the core rod assembly 1, the user only needs to sequentially put the shed sheath 2 on the core rod assembly 1. When installing the shed sheath 2, the shed sheath 2 needs to be rotated in sequence so that the lower mounting block 231 at the bottom of the shed sheath 2 can be locked in the upper mounting cavity 211 of the shed sheath 2 at the bottom thereof, thereby ensuring the stability between the sequentially stacked shed sheaths 2.

[0045] Furthermore, when the shed cover 2 is completely assembled on the core rod assembly 1, the user only needs to insert the guide members 62 on the sub-assembly cover 4 and the mother assembly cover 5 into the guide groove 11. At this time, the sub-assembly cover 4 and the mother assembly cover 5 can be combined together, and the clamping column 42 on the sub-assembly cover 4 will also be adapted and inserted into the clamping cavity 52 on the mother assembly cover 5. Subsequently, the user only needs to pass the screw 54 through the through hole 531 on the fixing plate 53 and insert it into the threaded hole 43 to achieve the adaptive combination between the sub-assembly cover 4 and the mother assembly cover 5. In this way, the sub-mounting block 41 and the mother mounting block 51 on the sub-assembly cover 4 and the mother assembly cover 5 can be combined together. After the assembly is completed, the sub-mounting block 41 and the mother mounting block 51 can be adapted and clamped in the mounting cavity 211 on the uppermost shed cover 2.

[0046] The user then simply moves the subassembly sleeve 4 and the mother assembly sleeve 5 downward, so that the assembled sub-mounting block 41 and the mother assembly block 51 are locked into the mounting cavity 211 on the top shed cover 2, thereby completing the installation of the shed cover 2. Finally, the user simply pushes the limiting members 61 on the fixing brackets 6 on both sides into the guide groove 11 to prevent the guide member 62 from vertically moving within the guide groove 11. Because the subassembly sleeve 4 and the mother assembly sleeve 5 have different heights, the fixing brackets 6 and the limiting members 61 on both sides also have different heights. This allows the limiting members 61 on both sides to be fully and adaptably locked into the guide groove 11 and secure the guide member 62, thereby completing the installation of the shed cover 2.

[0047] In the present invention, the shed sheath 2 can be stacked and mounted on the core rod assembly 1 in sequence through the adaption between the mounting cavity 211 and the lower mounting block 231, and the shed sheath 2 can be fixed through the adaption between the sub-assembly sheath 4 and the mother assembly sheath 5. This assembly method of mounting the shed sheath 2 on the core rod assembly 1 is not only firm but also very convenient, and is convenient for later replacement of the shed sheath 2 without the need for overall replacement, thereby reducing later maintenance costs.

[0048] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite insulator comprising a core rod assembly (1) and a shed sheath (2), characterized in that: The core rod assembly (1) is provided with a plurality of detachable shed sheaths (2), the tops of the shed sheaths (2) are fixedly provided with upper mounting members (21), the upper mounting members (21) are provided with a plurality of mounting cavities (211), and the bottoms of the shed sheaths (2) are fixedly provided with lower mounting members (23), and the bottoms of the lower mounting members (23) are provided with lower mounting blocks (231) adapted to correspond to the mounting cavities (211); The top of the uppermost shed sheath (2) of the core rod assembly (1) is equipped with a sub-assembly sleeve (4) and a female assembly sleeve (5); the bottom of the sub-assembly sleeve (4) is fixedly provided with a sub-mounting block (41); the bottom of the female assembly sleeve (5) is fixedly provided with a female assembly block (51); the sub-assembly block (41) and the female assembly block (51) are adapted and spliced ​​and adapted to the installation cavity (211).

2. A composite insulator according to claim 1, characterized in that: An upper hardware (3) is fixedly provided on the top of the core rod assembly (1), a lower hardware (31) is fixedly provided on the bottom of the core rod assembly (1), and a mounting base (12) is fixedly provided on the bottom of the core rod assembly (1) above the lower hardware (31), and the mounting base (12) is adapted to the lower mounting block (231).

3. A composite insulator according to claim 2, characterized in that: The top of the umbrella skirt sheath (2) is located outside the upper mounting piece (21) and is fixedly provided with a protective cover (22), and the height of the protective cover (22) is the same as the sum of the heights of the upper mounting piece (21) and the lower mounting piece (23).

4. A composite insulator according to claim 3, characterized in that: The shed sheaths (2) are stacked and sleeved on the core rod assembly (1) in sequence, the sub-assembly sleeve (4) and the mother assembly sleeve (5) are both detachably arranged, and the sub-assembly sleeve (4) and the mother assembly sleeve (5) are both adapted to be assembled and installed on the top of the uppermost shed sheath (2).

5. A composite insulator according to claim 4, characterized in that: A guide piece (62) is fixedly provided in the middle of the sub-assembly sleeve (4) and the mother assembly sleeve (5), and guide grooves (11) are adapted to correspond to the guide piece (62) on both sides of the core rod assembly (1).

6. The composite insulator according to claim 5, characterized in that: Both sides of the sub-assembly sleeve (4) are fixedly and vertically provided with clamping columns (42), and both sides of the mother assembly sleeve (5) are adapted to be provided with clamping cavities (52) corresponding to the clamping columns (42).

7. The composite insulator according to claim 6, characterized in that: The tops of the sub-assembly sleeve (4) and the mother assembly sleeve (5) are both fixedly provided with fixing frames (6) of different heights, and the fixing frames (6) are both movably provided with limiting members (61), and the limiting members (61) are both adapted to be inserted into the guide grooves (11).

8. The composite insulator according to claim 7, characterized in that: Anti-dropping parts (601) are fixedly provided on both sides of the inner wall of the fixing frame (6), and anti-dropping cavities (611) are adapted and opened on both sides of the limiting part (61) corresponding to the anti-dropping parts (601).

9. The composite insulator according to claim 8, characterized in that: The height of the female assembly sleeve (5) is greater than that of the sub-assembly sleeve (4); fixed plates (53) are fixedly provided on both sides of the female assembly sleeve (5); through holes (531) are provided on the fixed plates (53); screws (54) inserted downwards are adapted to be provided in the through holes (531); and threaded holes (43) are adapted to be provided on the tops of the sub-assembly sleeves (4).

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