Composite sleeve outdoor terminal

Abstract

The utility model discloses a composite sleeve outdoor terminal which comprises a composite sleeve body and a stress cone body, the stress cone body is arranged in the composite sleeve body, and the composite sleeve body is of a conical structure which is gradually enlarged from the top end of the composite sleeve body to the bottom end of the composite sleeve body. Umbrella skirt bodies are arranged on the outer wall of the composite bushing body in the axial direction of the composite bushing body at intervals, and a small umbrella skirt with a small radial size is arranged between two large umbrella skirts with large radial sizes in the axial direction of the composite bushing; as the composite bushing body is of the conical structure which is gradually enlarged from the top end to the bottom end, the sizes of the umbrella skirt bodies on the outer wall of the composite bushing body are changed along with the change of the conical surface of the outer wall of the composite bushing, and the umbrella skirt bodies on the outer wall of the composite bushing body are arranged at intervals, so that impurities are not easy to adhere to the interiors of the umbrella skirt bodies, and the service life of the composite bushing body is prolonged. And the gaps between the umbrella skirt bodies which are arranged at intervals are large, so that workers can conveniently clean the umbrella skirt bodies.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable accessory technical field, and specifically is a kind of composite sleeve outdoor terminal. BACKGROUND

[0002] It is known that the composite sleeve outdoor terminal is used in the case of being directly irradiated by sunlight or exposed to the climate environment or both, and the outdoor terminal is divided into cold-shrink outdoor terminal, heat-shrink outdoor terminal, porcelain sleeve outdoor terminal, composite outdoor terminal, silicone rubber dry-type outdoor cable terminal and GIS terminal according to the installation material, and the composite sleeve outdoor terminal is generally used for 64-11KV cable, and the composite sleeve outdoor terminal is used for connecting the cable with overhead line or busbar of substation, can be used in outdoor environment, and can resist rain, snow and other bad weather.

[0003] For example, the patent with the publication number CN210111575U and the publication date of February 21, 2020, and the name "composite sleeve oil-filled intelligent outdoor terminal" relates to the technical field of cable outdoor terminal equipment. The insulating sleeve is vertically fixedly connected to the upper middle position of the support member, the lower support member is fixedly connected to the upper part of the insulating sleeve through the sealing member, the conductor is vertically fixedly connected to the inner middle position of the insulating sleeve, the upper support member is fixedly connected to the top of the insulating sleeve, the conductor lead-out rod is fixedly connected to the upper part of the conductor, the high-voltage shielding ring is sleeved on the conductor lead-out rod, the stress control member is fixedly connected to the bottom of the conductor, the oil stop pipe is fixedly connected to the bottom of the conductor and the lower support member, the temperature sensor and the current detection device are both installed on the conductor, and the support insulator is fixedly connected to the bottom of the left and right sides of the lower support member. The utility model can detect the temperature and current of the outdoor terminal in real time, and can cool the outdoor terminal according to the change of temperature, thereby increasing the service life of the outdoor terminal.

[0004] In the prior art, the umbrella skirt is exposed to air for a long time, and impurities and dirt in the air can adhere to the surface of the umbrella skirt. The gap between the umbrella skirts is small, and it is not convenient to clean. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a composite sleeve outdoor terminal to solve the above problems in the prior art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a composite sleeve outdoor terminal, including composite sleeve body and stress cone body, stress cone body is arranged in the composite sleeve body, the composite sleeve body is the taper structure that gradually becomes big from its top to its bottom, the umbrella skirt body is arranged on the outer wall of the composite sleeve body along its axial direction, the umbrella skirt body is interval type setting, in the axial direction of the composite sleeve, two big umbrella skirt of big radial dimension are provided with small umbrella skirt of small radial dimension in the middle.

[0007] The above, the composite sleeve body top is equipped with outdoor wire clamp, the general movable outgoing line connecting clamp is arranged on the outdoor wire clamp.

[0008] The above, the top of the composite sleeve body is provided with a rain cover.

[0009] The above, the stress cone body is liquid silicone rubber injection molding.

[0010] The above, the bottom end of the composite sleeve body is connected with the bottom plate through the sealing base.

[0011] The above, the bottom plate is provided with a support insulator.

[0012] The above, the sealing base is provided with a cold shrink semi-conductive silicone rubber sealing tube, and the cold shrink semi-conductive silicone rubber sealing tube is filled with insulating oil.

[0013] The above, the cold shrink semi-conductive silicone rubber sealing tube and the inner wall of the bottom plate are connected by a plurality of copper meshes.

[0014] The above, the outer wall of the sealing base is pasted with an insulating self-adhesive tape, and a plurality of copper wires are sleeved on the outer wall of the insulating self-adhesive tape.

[0015] The above, the outer wall of the insulating self-adhesive tape is pasted with a semi-conductive tape, and the semi-conductive tape is connected with the outer wall of the stress cone body.

[0016] The utility model has the advantages that: since the composite sleeve body is the taper structure that gradually becomes big from its top to its bottom, the size of the umbrella skirt body on the outer wall of the composite sleeve body also changes with the change of the conical surface of the composite sleeve body, and the umbrella skirt body on the outer wall of the composite sleeve body is interval type setting, so that impurities are not easily adhered in the umbrella skirt body, and the gap between the umbrella skirt bodies with different sizes is large, which facilitates the cleaning operation of the umbrella skirt body by the staff. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only represent some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is a cross-sectional structure schematic view of the present application.

[0019] Figure 2 It is a cross-sectional structure schematic view of the present application. Figure 1 It is a partial enlarged cross-sectional structure schematic view of the present application.

[0020] Figure 3 It is a cross-sectional structure schematic view of the present application. Figure 1 It is a partial enlarged cross-sectional structure schematic view of the present application.

[0021] Explanation of reference signs:

[0022] 1, composite sleeve body; 2, stress cone body; 3, outdoor clamp; 4, umbrella skirt body; 41, large umbrella skirt; 42, small umbrella skirt; 5, rain cover; 6, bottom plate; 7, supporting insulator; 8, sealing base; 9, cold shrink semi-conductive silicone rubber sealing tube; 10, insulating oil; 11, copper mesh; 12, insulating self-adhesive tape; 13, copper binding wire; 14, semi-conductive tape; 15, heat shrink tube; 16, tail pipe; 17, PVC tape; 18, lead lining; 19, bottom lead; 20, lead seal. DETAILED DESCRIPTION

[0023] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail in combination with the drawings.

[0024] As shown in Figures 1 to 3 An embodiment provided by the present application, a composite sleeve outdoor terminal, comprising a composite sleeve body 1 and a stress cone body 2, the stress cone body 2 is arranged in the composite sleeve body 1, the composite sleeve body 1 is a taper structure gradually increasing from the top end to the bottom end, the umbrella skirt body 4 is arranged on the outer wall of the composite sleeve body 1 along the axial direction, the umbrella skirt body 4 is arranged in a spaced manner, and a small umbrella skirt 42 with a small radial size is arranged between two large umbrella skirts 41 with a large radial size in the axial direction of the composite sleeve.

[0025] Specifically, the composite sleeve outdoor terminal is a terminal used in the case of being directly irradiated by sunlight or exposed to the climate environment or both, the composite sleeve body 1 is made of silicone rubber material, has good stain resistance, ultraviolet resistance and anti-aging performance, the composite sleeve body 1 has the advantages of high damping ratio (damping is the various friction and other hindering effects that cause free vibration to decay, damping ratio is an important concept of structural dynamics in the fields of civil engineering, machinery, aerospace, etc., which refers to the ratio of damping coefficient to critical damping coefficient, and represents the standardized damping size of the structure) and large stress safety margin (the safety margin refers to the ratio of the part of the maximum failure load of the component exceeding the design load to the design load), the composite sleeve body 1 is provided in a tapered structure gradually increasing from the top end to the bottom end, which can effectively prevent rainwater and impurities from remaining on the outer wall of the composite sleeve body 1, the composite sleeve body 1 serves as a current-carrying conductor for introducing or leading out high-voltage, medium-voltage and low-voltage currents of the transformer, and insulates the transformer oil tank shell, the stress cone body 2 is used to relieve the electric field concentration at the cable shielding layer fracture, the outer part of the stress cone body 2 is provided as an umbrella skirt 4 because the high-voltage creepage distance (the creepage distance refers to the distance between two conductive parts measured along the insulating surface, in different use cases, due to the polarization of the insulating material around the conductor, the insulating material presents a charged area) is larger than the low-voltage creepage distance, so the outer part of the stress cone body 2 is provided as the umbrella skirt 4, which can greatly reduce the size and weight of the stress cone body 2, improve the economy of the stress cone body 2, and the umbrella skirt 4 is provided in a spaced manner, in the axial direction of the composite sleeve, a small umbrella skirt 42 with a small radial size is arranged between two large umbrella skirts 41 with a large radial size, which can increase the gap between the umbrella skirts 4, facilitate the cleaning of the umbrella skirts 4, and the umbrella skirt 4 is made of silicone rubber material, has good stain resistance, so that impurities are not easily adhered in the umbrella skirt 4, in the prior art, the umbrella skirt is exposed to the air for a long time, impurities and dirt in the air will adhere to the surface of the umbrella skirt, and the gap between the umbrella skirts is small, which is not convenient to clean; in the embodiment, since the composite sleeve body 1 is in a tapered structure gradually increasing from the top end to the bottom end, the size of the umbrella skirt 4 on the outer wall of the composite sleeve body 1 also changes with the taper surface of the composite sleeve outer wall, and the umbrella skirts 4 on the outer wall of the composite sleeve body 1 are provided in a spaced manner, so that impurities are not easily adhered in the umbrella skirt 4, and the gap between the umbrella skirts 4 arranged in different sizes is large, which facilitates the cleaning work of the umbrella skirts 4 by the staff.

[0026] Preferably, the composite sleeve body 1 is provided with an outdoor wire clamp 3 at the top end, and the outdoor wire clamp 3 is provided with a universal movable outgoing line connecting clamp, specifically, by providing the connecting clamp on the outdoor wire clamp 3, the connection of the overhead line is more convenient, and the connection mode is more flexible, which can improve the efficiency of the staff in connecting the line.

[0027] Preferably, the top of the composite sleeve body 1 is provided with a rain cover 5, specifically, by setting the rain cover 5 on the top of the composite sleeve body 1, so that the rain cover 5 can effectively seal the rain, and the rain cover 5 can also shield the upper end components of the composite sleeve body 1 from producing corona.

[0028] Further, the stress cone body 2 is formed by liquid silicone rubber injection molding, specifically, the stress cone body is formed by liquid silicone rubber injection molding, which can improve the stability of the structure of the stress cone body 2, so that the sealing reliability of the stress cone body 2 is higher.

[0029] In another embodiment of the utility model, the composite sleeve body 1 bottom end is connected with bottom plate 6 through sealing base 8, bottom plate 6 is provided with support insulator 7, sealing base 8 is provided with cold shrink semi-conductive silicone rubber sealing pipe 9 in, cold shrink semi-conductive silicone rubber sealing pipe 9 is filled with insulating oil 10, and cold shrink semi-conductive silicone rubber sealing pipe 9 and the inner wall of bottom plate 6 are connected through multiple copper nets 11, the outer wall of sealing base 8 is pasted with insulating self-adhesive tape 12, the outer wall of insulating self-adhesive tape 12 is sleeved with multiple copper wires 13, the outer wall of insulating self-adhesive tape 12 is pasted with semi-conductive tape 14, and semi-conductive tape 14 is connected with the outer wall of stress cone body 2.

[0030] Specifically, the composite sleeve body 1 is installed and positioned through the bottom end of the support insulator 7, the cold shrink semi-conductive silicone rubber sealing pipe 9 is a pipe body containing insulating oil 10, the cold shrink semi-conductive silicone rubber sealing pipe 9 is filled with insulating oil 10, the insulating oil 10 is a liquid for insulation, the bottom plate 6 and the composite sleeve body 1 are sealed and connected through the sealing base 8, and the outer wall of the cold shrink semi-conductive silicone rubber sealing pipe 9 is wrapped through the insulating self-adhesive tape 12 and the semi-conductive tape 14, so that the insulating oil 10 in the cold shrink semi-conductive silicone rubber sealing pipe 9 is prevented from leaking, the insulating self-adhesive tape 12 is tied through the copper wire 13, so that the adhesion of the insulating self-adhesive tape 12 is more stable, the copper net 11 is arranged at the connecting position of the base and the insulating self-adhesive tape 12, so that the copper net 11 can prevent the cold shrink semi-conductive silicone rubber sealing pipe 9 and the inner wall of the bottom plate 6 from being damaged due to friction, and the cold shrink semi-conductive silicone rubber sealing pipe 9 is wrapped and sealed through the insulating self-adhesive tape 12, the copper net 11, the copper wire 13 and the semi-conductive tape 14, so that the insulating oil 10 filled in the cold shrink semi-conductive silicone rubber sealing pipe 9 is effectively prevented from leaking.

[0031] The utility model provides a still another embodiment, the bottom end of cold shrink semi -conductive silicon rubber seal pipe 9 is connected with heat shrink tube 15, the bottom end of bottom plate 6 is connected with tail pipe 16, the outer wall of bottom plate 6, cold shrink semi -conductive silicon rubber seal pipe 9 and heat shrink tube 15 all are wrapped with PVC band 17, the inside of the bottom end of tail pipe 16 is provided with lead lining 18, the inner wall of lead lining 18 is provided with bottom lead 19, the outer wall of bottom lead 19 is wrapped with lead seal 20, the outer wall of lead seal 20, tail pipe 16 and heat shrink tube 15 all are wrapped with PVC band 17.

[0032] Specifically, the bottom plate 6, the cold shrink semi-conductive silicon rubber seal pipe 9 and the heat shrink tube 15 are wrapped and sealed by the PVC band 17, so that the cold shrink semi-conductive silicon rubber seal pipe 9 will not leak at the bottom, and the bottom end of the cold shrink semi-conductive silicon rubber seal pipe 9 is stably closed by the lead lining 18, the bottom lead 19 and the lead seal 20, so that the insulating oil 10 in the cold shrink semi-conductive silicon rubber seal pipe 9 will not leak, and the outer wall of the lead seal 20, the tail pipe 16 and the heat shrink tube 15 is wrapped and sealed by the PVC band 17, so that the installation of the lead seal 20, the tail pipe 16 and the heat shrink tube 15 is more stable, and the heat shrink tube 15 has a certain elasticity, so that the heat shrink tube 15 can adapt to the expansion and contraction of the insulating oil 10 affected by temperature, and the heat shrink tube 15 and the insulating oil 10 can be more stably adapted.

[0033] The above only describes some exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled person in the art, under the condition of not deviating from the spirit and scope of the utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A composite sleeve outdoor termination comprising a composite sleeve body and a stress cone body, the stress cone body disposed within the composite sleeve body, characterized by, The composite sleeve body is a taper structure gradually increasing from the top end to the bottom end, and an umbrella skirt is arranged on the outer wall of the composite sleeve body in the axial direction, the umbrella skirts are arranged at intervals, and a small umbrella skirt with a small radial size is arranged between two large umbrella skirts with a large radial size in the axial direction of the composite sleeve.

2. A composite sleeve outdoor terminal according to claim 1, wherein An outdoor wire clamp is arranged on the top end of the composite sleeve body, and a general movable outgoing line connecting clamp is arranged on the outdoor wire clamp.

3. A composite sleeve outdoor terminal according to claim 1, wherein A rain cover is arranged on the top of the composite sleeve body.

4. A composite sleeve outdoor terminal according to claim 1, wherein The stress cone body is formed by liquid silicone rubber injection molding.

5. A composite sleeve outdoor terminal according to claim 1, wherein The bottom end of the composite sleeve body is connected with a bottom plate through a sealing base.

6. A composite sleeve outdoor terminal according to claim 5, wherein A support insulator is arranged on the bottom plate.

7. A composite sleeve outdoor terminal according to claim 5, wherein A cold shrink semi-conductive silicone rubber sealing tube is arranged in the sealing base, and the cold shrink semi-conductive silicone rubber sealing tube is filled with insulating oil.

8. A composite sleeve outdoor terminal according to claim 7, wherein The cold shrink semi-conductive silicone rubber sealing tube and the inner wall of the bottom plate are connected through a plurality of copper meshes.

9. A composite sleeve outdoor terminal according to claim 8, wherein An insulating self-adhesive tape is attached to the outer wall of the sealing base, and a plurality of copper wires are sleeved on the outer wall of the insulating self-adhesive tape.

10. A composite sleeve outdoor terminal according to claim 9, wherein A semi-conductive tape is attached to the outer wall of the insulating self-adhesive tape, and the semi-conductive tape is connected with the outer wall of the stress cone body.

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