Composite insulator and manufacturing method thereof

Abstract

The invention relates to the field of composite insulators, in particular to a composite insulator and a manufacturing method thereof, a plurality of detachable umbrella skirt sheaths are mounted on a core rod assembly, upper mounting parts are fixedly arranged at the tops of the umbrella skirt sheaths, a plurality of mounting cavities are formed in the upper mounting parts, and lower mounting parts are fixedly arranged at the bottoms of the umbrella skirt sheaths; and lower mounting blocks corresponding to the mounting cavities are adaptively arranged at the bottoms of the lower mounting pieces. According to the invention, 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 umbrella skirt sheaths can be fixed, so that the assembly mode of mounting the umbrella skirt sheaths on the core rod assembly is firm, and the assembly efficiency is improved. And the umbrella skirt sheath is convenient to replace in the later period, the whole umbrella skirt sheath does not need to be replaced, and the later maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of composite insulators, and in particular to a composite insulator and a manufacturing method thereof. Background Art

[0002] Composite insulators are usually composed of three parts: glass fiber epoxy resin lead rod, silicone rubber shed and hardware. The silicone rubber shed adopts the integral injection molding process and is tightly combined with the core rod, solving the problem of electrical breakdown at the interface. The hardware part is used to connect and fix the insulator to ensure its stable operation in the transmission line.

[0003] At present, the shed sheath of traditional insulators on the market is usually fixed on the core rod. When the shed part is damaged, aged or seriously polluted, it is often necessary to replace the entire insulator instead of just replacing the damaged shed sheath. This increases the maintenance cost because replacing the entire insulator is usually more expensive than replacing a single part. Therefore, an insulator with a replaceable shed sheath is urgently needed. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a composite insulator and a manufacturing method thereof.

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

[0006] A composite insulator and a manufacturing method thereof, comprising a core rod assembly and an shed sheath, wherein a plurality of detachable shed sheaths are mounted on the core rod assembly, upper mounting pieces are fixedly arranged on the tops of the shed sheaths, a plurality of mounting cavities are opened on the upper mounting pieces, lower mounting pieces are fixedly arranged on the bottoms of the shed sheaths, and lower mounting blocks are adaptively arranged at the bottoms of the lower mounting pieces corresponding to the mounting cavities; a sub-assembly sheath and a mother-assembly sheath are assembled on the top of the shed sheath located at the top of the core rod assembly, a sub-assembly sheath is fixedly arranged on the bottom, a mother-assembly sheath is fixedly arranged on the bottom, and the sub-assembly sheath is adaptively spliced ​​with the mother-assembly sheath and adapted to the mounting cavities.

[0007] In addition, a preferred structure is that an upper hardware is fixedly provided on the top of the mandrel assembly, a lower hardware is fixedly provided on the bottom of the mandrel assembly, a mounting base is fixedly provided on the bottom of the mandrel assembly above the lower hardware, 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 on the outside of 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, a preferred structure is that the shed sheaths are stacked and sleeved on the core rod assembly in sequence, the sub-assembly sheath and the mother-assembly sheath are both detachably arranged, and the sub-assembly sheath and the mother-assembly sheath are both adapted to be assembled and installed on the top of the uppermost shed 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 fixedly provided 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 be opened on both sides of the limiting member corresponding to the anti-dropping parts.

[0014] In addition, a preferred structure is that the height of the mother assembly sleeve is greater than that of the sub-assembly sleeve, and fixing plates are fixedly arranged on both sides of the mother assembly sleeve, and through holes are opened on the fixing plates, and screws inserted downward are adapted to be arranged in the through holes, and threaded holes are adapted to be opened on the top of the sub-assembly sleeve.

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

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

[0017] S2: The shed sheath is placed on the core rod assembly from the top downward. When the shed sheath contacts the mounting base, the shed sheath is rotated so that the lower mounting block at the bottom of the shed sheath is fitted into the mounting cavity on the mounting base.

[0018] S3: stacking and installing a plurality of shed covers again on the installed shed cover, and clamping the lower mounting blocks at the bottom of all shed covers into the mounting cavity;

[0019] S4: After all the shed sheaths are installed, the guide pieces on the sub-assembly sheath and the mother-assembly sheath are inserted 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 synchronously inserted into the clamping cavity in the female assembly sleeve, 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 realizing the assembly of this 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 setting between the installation cavity and the lower installation block, and the shed sheaths can be fixed through the adaption setting 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 relatively firm, but also very convenient, which makes it easy to replace the shed sheath at a later stage without replacing the entire shed sheath, thereby reducing the later maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a composite insulator proposed by the present invention;

[0024] Figure 2 A schematic diagram of the structure of a shed sheath of a composite insulator proposed by the present invention;

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

[0026] Figure 4 A schematic structural diagram of a core rod assembly, an upper hardware fixture and a lower hardware fixture of a composite insulator proposed by the present invention;

[0027] Figure 5 A schematic diagram of the structure of a sub-assembly sleeve and a mother-assembly sleeve of a composite insulator proposed by the present invention;

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

[0029] Figure 7 A schematic structural diagram of a sub-assembly sleeve of a composite insulator proposed by the present invention;

[0030] Figure 8 The present invention is a schematic structural diagram of a mother assembly sleeve of a composite insulator.

[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 sleeve, 23 lower mounting part, 231 lower mounting block, 3 upper hardware, 31 lower hardware, 4 sub-assembly sleeve, 41 sub-mounting block, 42 ​​clamping column, 43 threaded hole, 5 mother assembly sleeve, 51 mother 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 and a manufacturing method thereof, comprising a core rod assembly 1 and a shed sheath 2, a plurality of detachable shed sheaths 2 are mounted on the core rod assembly 1, an upper mounting piece 21 is fixedly mounted on the top of each shed sheath 2, a plurality of mounting cavities 211 are provided on each upper mounting piece 21, a lower mounting piece 23 is fixedly mounted on the bottom of each shed sheath 2, and a lower mounting block 231 is adapted to be disposed at the bottom of each lower mounting piece 23 corresponding to the mounting cavity 211. A sub-assembly sleeve 4 and a mother assembly sleeve 5 are assembled on the top of the shed sheath 2 located at the top of the core rod assembly 1, a sub-assembly sleeve 4 is fixedly mounted on the bottom, a mother assembly sleeve 5 is fixedly mounted on the bottom of the mother assembly sleeve 5, and the sub-assembly sleeve 4 is adapted to be spliced ​​with the mother assembly sleeve 51, and the sub-assembly block 41 and the mother assembly sleeve 51 are adapted to be spliced ​​and adapted to the mounting cavity 211.

[0034] Among them, the top of the mandrel assembly 1 is fixedly provided with an upper hardware 3, 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 sleeved with a mounting base 12, and the mounting base 12 is adapted to 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 prior art, and they do not belong to the main technical problems to be solved in the present invention, so they are not elaborated.

[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. By setting the protective cover 22, the connection between the shed sheaths 2 can be ensured to be stable when the shed sheaths 2 are installed.

[0036] The shed sheaths 2 are stacked and sleeved on the mandrel 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. The size of the upper hardware 3 is smaller than the size of the inner diameter of the shed sheath 2, so that the shed sheath can pass through the upper hardware 3 and be sleeved on the mandrel assembly 11.

[0037] The middle of the sub-assembly sleeve 4 and the mother assembly sleeve 5 are fixedly provided with a guide piece 62, and both sides of the mandrel assembly 1 are adapted to open a guide groove 11 corresponding to the guide piece 62. The adaptation setting between the guide groove 11 and the guide piece 62 can facilitate the user to install 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] Among them, the tops of the sub-assembly sleeve 4 and the mother assembly sleeve 5 are fixedly provided with fixing frames 6 of different heights, and the fixing frames 6 are movably provided with limit members 61, and the limit members 61 are adapted to be inserted into the guide grooves 11. Anti-dropping members 601 are fixedly provided on both sides of the inner wall of the fixing frame 6, and anti-dropping cavities 611 are adapted to be opened on both sides of the limit members 61 corresponding to the anti-dropping members 601.

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

[0041] A manufacturing method for a composite insulator, wherein a core rod assembly, an upper hardware fitting, and a lower hardware fitting are all stamped and formed in a factory, and are synchronously sent to a site for assembly with a shed sheath. The shed sheath is sleeved on the core rod assembly from the top downward, and when the shed sheath contacts a mounting base, the shed sheath is rotated so that a lower mounting block adapter at the bottom of the shed sheath is mounted into a mounting cavity on the mounting base.

[0042] A plurality of shed covers are stacked and installed again on 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 groove.

[0043] When the guide pieces on the sub-assembly sleeve and the mother-assembly sleeve are inserted into the guide grooves, the clamping columns on the sub-assembly sleeve can be adapted and inserted into the clamping cavity of the mother-assembly sleeve, and then the screws are passed through the fixing plate and inserted into the threaded holes. At the same time, the sub-assembly sleeve and the mother-assembly sleeve are moved downward, and when they move to the bottom, the limiting pieces on the fixing frames on both sides are pushed into the guide grooves, so that the ends of the limiting pieces enter the guide grooves, thereby realizing 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 shed sheath 2 only needs to be sequentially sleeved on the core rod assembly 1. When installing the shed sheath 2, the shed sheath 2 needs to be rotated sequentially so that the lower mounting block 231 at the bottom of the shed sheath 2 can be stuck 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 sheath 2 is completely assembled on the mandrel assembly 1, the user only needs to insert the guide pieces 62 on the sub-assembly sheath 4 and the female assembly sheath 5 into the guide groove 11. At this time, the sub-assembly sheath 4 and the female assembly sheath 5 can be combined together, and the clamping column 42 on the sub-assembly sheath 4 will also be adapted and inserted into the clamping cavity 52 on the female assembly sheath 5. Then, 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, so as to achieve the adaptation and combination between the sub-assembly sheath 4 and the female assembly sheath 5. In this way, the sub-mounting block 41 and the female mounting block 51 on the sub-assembly sheath 4 and the female assembly sheath 5 can be combined together, and the sub-mounting block 41 and the female mounting block 51 after the combination can be adapted and clamped in the mounting cavity 211 on the uppermost shed sheath 2.

[0046] Then the user only needs to move the sub-assembly sleeve 4 and the mother assembly sleeve 5 downwards, so that the sub-mounting block 41 and the mother assembly block 51 after assembly are clamped in the mounting cavity 211 on the top shed cover 2, so as to achieve the installation of the shed cover 2. Finally, the user only needs to push the limiting members 61 on the fixing frames 6 on both sides into the guide groove 11 to prevent the guide member 62 from moving vertically in the guide groove 11. Since the heights of the sub-assembly sleeve 4 and the mother assembly sleeve 5 are different, the heights of the fixing frames 6 and the limiting members 61 on both sides are also different, so that the limiting members 61 on both sides can be fully clamped in the guide groove 11 and fix the guide member 62, so as to achieve the installation of the shed cover 2.

[0047] In the present invention, the shed sheath 2 can be stacked and sleeved on the core rod assembly 1 in sequence through the adaption card setting between the installation cavity 211 and the lower installation block 231, and the shed sheath 2 can be fixed through the adaption setting between the sub-assembly sleeve 4 and the mother assembly sleeve 5. This assembly method of installing the shed sheath 2 on the core rod assembly 1 is not only relatively firm, but also very convenient, which is convenient for replacing the shed sheath 2 at a later stage without replacing the entire shed sheath, thereby reducing the later maintenance cost.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by 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); an upper mounting piece (21) is fixedly provided on the top of each shed sheath (2); a plurality of mounting cavities (211) are provided on each of the upper mounting pieces (21); a lower mounting piece (23) is fixedly provided on the bottom of each shed sheath (2); and a lower mounting block (231) is adapted to be provided at the bottom of each of the lower mounting pieces (23) in correspondence with the mounting cavities (211); The top of the uppermost shed sheath (2) of the mandrel assembly (1) is equipped with a sub-assembly sheath (4) and a female assembly sheath (5); a sub-mounting block (41) is fixedly provided at the bottom of the sub-assembly sheath (4); a female assembly sheath (51) is fixedly provided at the bottom of the female assembly sheath (5); the sub-assembly sheath (41) and the female assembly sheath (51) are adapted to be 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 at the top of the mandrel assembly (1), a lower hardware (31) is fixedly provided at the bottom of the mandrel assembly (1), a mounting base (12) is fixedly provided at the bottom of the mandrel assembly (1) above the lower hardware (31), and the mounting base (12) is adapted to fit 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 sheath (22), and the height of the protective sheath (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 main 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. A 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. A composite insulator according to claim 6, characterized in that: A fixing frame (6) of different heights is fixedly arranged on the top of the sub-assembly sleeve (4) and the main assembly sleeve (5), and a limiting member (61) is movably arranged in the fixing frame (6), and the limiting member (61) is adapted to be inserted into the guide groove (11).

8. A 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. A 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); fixing plates (53) are fixedly arranged on both sides of the female assembly sleeve (5); through holes (531) are provided on the fixing 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).

10. A method for manufacturing a composite insulator according to any one of claims 1 to 9, comprising the following steps: S1: The mandrel assembly and the upper and lower fittings are all stamped and formed in the factory, and are sent to the site for assembly together with the shed sheath; S2: The shed sheath is placed on the core rod assembly from the top downward. When the shed sheath contacts the mounting base, the shed sheath is rotated so that the lower mounting block at the bottom of the shed sheath is fitted into the mounting cavity on the mounting base. S3: stacking and installing a plurality of shed covers again on the installed shed cover, and clamping the lower mounting blocks at the bottom of all shed covers into the mounting cavity; S4: After all the shed sheaths are installed, the guide pieces on the sub-assembly sheath and the mother-assembly sheath are inserted into the guide grooves; 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 synchronously inserted into the clamping cavity in the female assembly sleeve, and then the screws are passed through the fixing plate and inserted into the threaded holes; 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 realizing the assembly of this product.

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