Novel composite sleeve type outdoor terminal

Abstract

The utility model relates to the technical field of outdoor terminals, and discloses a novel composite sleeve type outdoor terminal, which comprises a base, a conductor fixedly inserted on the base, a stress cone fixedly sleeved on the outer side of the conductor, an insulating sleeve arranged on the outer side of the conductor, an insulating medium filled between the insulating sleeve and the conductor, and an outer skirt sleeve arranged on the outer wall of the insulating sleeve. The outer skirt sleeve sleeves the outer side of the insulating sleeve, a connecting assembly is arranged at the bottom end of the outer skirt sleeve, the outer skirt sleeve is detachably fixed to the base through the connecting assembly, a sealing flange is arranged at the top of the insulating sleeve, a high-voltage shielding box is fixedly installed on the sealing flange, and the outer skirt sleeve and the base are detachably fixed through the connecting assembly. The outer skirt sleeve can effectively prevent dust, moisture and other impurities in the external environment from entering the insulating sleeve, so that damage to an insulating medium and a conductor is avoided, the outer skirt sleeve can be installed without using a special tool, operation is simple and convenient, the outer skirt sleeve can be rapidly installed and detached, and maintenance cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of outdoor terminals, and specifically, to a new composite sleeve type outdoor terminal. Background Art

[0002] The composite sleeve type outdoor terminal is used to be directly connected with the overhead line on the iron tower, or connected with other equipment or lines through leads, such as disconnectors, transformers, wall bushings, etc.; the outdoor terminal can be applied in substations and on terminal towers. Since the outdoor terminal is exposed to the outdoor for a long time and the working environment is harsh, most of its insulating sleeves are integrally manufactured, which is not only inconvenient for installation and disassembly, but also requires replacing the entire insulating sleeve once it is damaged, resulting in a relatively high maintenance cost.

[0003] After retrieval, a Chinese patent with the publication number of CN218958519U discloses a new composite sleeve type outdoor terminal, which relates to the technical field of cable accessories, including a base, a conductor is inserted on the base, a stress cone is arranged on the conductor, an insulating sleeve is arranged outside the conductor, an insulating medium is filled between the insulating sleeve and the conductor, the insulating sleeve is hermetically connected with the base, an outer skirt sleeve is arranged on the outer wall of the insulating sleeve, the outer skirt sleeve is divided into two halves, a sealing flange is arranged at the top of the insulating sleeve, and a high-voltage shielding box is arranged on the sealing flange. The new composite sleeve type outdoor terminal adopts a double-layer design of an insulating sleeve and an outer skirt sleeve, and is filled with insulating silicone oil and insulating silicone grease, so that its insulation performance is better, and its heat dissipation effect can also be improved. At the same time, the outer skirt sleeve of the outdoor terminal adopts a semi-shell type assembled design, which is more convenient for installation and disassembly, and the outer skirt sleeve can also be replaced in half, with lower maintenance costs.

[0004] There are some drawbacks in the existing device during use. For example: the above solution enables the outer skirt sleeve to be easily disassembled and installed through a semi-shell type assembled design. However, it is found in actual operation that it is difficult to stably install the outer skirt sleeve with several bolts, and the connection part of the installed outer skirt sleeve is prone to warping, and moisture and dust can enter the interior, making it difficult to achieve the protection effect. Moreover, this connection method requires the use of auxiliary instruments, which prolongs the complexity and time of installation and disassembly. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a new composite sleeve type outdoor terminal to solve the problems that it is difficult to stably install the outer skirt sleeve with bolts, the connection part of the installed outer skirt sleeve is prone to warping, and moisture and dust can enter the interior, making it difficult to achieve the protection effect.

[0006] The present utility model provides the following technical solution: a novel composite sleeve type outdoor terminal, including a base, a conductor is inserted and fixed on the base, a stress cone is fixedly sleeved outside the conductor, an insulating sleeve is arranged outside the conductor, an insulating medium is filled between the insulating sleeve and the conductor, an outer skirt sleeve is arranged on the outer wall of the insulating sleeve, the outer skirt sleeve is sleeved outside the insulating sleeve, and a connecting component is arranged at the bottom end of the outer skirt sleeve, the outer skirt sleeve is detachably fixed to the base through the connecting component, a sealing flange is arranged at the top of the insulating sleeve, and a high-voltage shielding box is fixedly installed on the sealing flange.

[0007] As a preference of the above technical solution, the connecting component includes an upper connecting plate symmetrically and fixedly installed on the outer side wall of the outer skirt sleeve and a lower connecting plate symmetrically and fixedly installed on the outer side wall of the top of the base. Limit sliding grooves are symmetrically opened on the lower end face of the upper connecting plate, limit sliding blocks are slidably connected in the limit sliding grooves, a plurality of return springs are arranged between the two limit sliding blocks, and a limit opening is opened on the lower connecting plate.

[0008] As a preference of the above technical solution, two ends of the return spring are respectively fixedly connected to the side walls of the corresponding limit sliding blocks.

[0009] As a preference of the above technical solution, positioning insertion holes are opened on the side walls of the two limit sliding blocks, and ejector rods are horizontally inserted in the positioning insertion holes.

[0010] As a preference of the above technical solution, two groups of placing rings for placing the ejector rods are fixedly connected to the outer side walls of the opposite sides of the base.

[0011] As a preference of the above technical solution, post insulators are symmetrically arranged on both sides of the base.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] In the present utility model, the outer skirt sleeve is sleeved outside the insulating sleeve, and the outer skirt sleeve is detachably fixed to the base through the connecting component. The outer skirt sleeve can effectively prevent impurities such as dust and moisture in the external environment from entering the inside of the insulating sleeve, thereby avoiding damage to the insulating medium and the conductor, ensuring the stable operation of the terminal, and the outer skirt sleeve can be installed without using special tools, the operation is simple and convenient, and the outer skirt sleeve can be quickly installed and disassembled, effectively reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of a novel composite sleeve type outdoor terminal;

[0015] Figure 2 is Figure 1 the enlarged view at A in

[0016] Figure 3 Exploded structural schematic diagram of the connection component;

[0017] Figure 4 Partial sectional structural schematic diagram of a new type of composite sleeve outdoor terminal.

[0018] In the figure: 10, base; 11, conductor; 12, stress cone; 13, insulating sleeve; 14, insulating medium; 15, outer skirt sleeve; 16, sealing flange; 17, high-voltage shielding box; 18, post insulator; 20, upper connecting plate; 21, lower connecting plate; 22, limiting sliding groove; 23, limiting sliding block; 24, return spring; 25, limiting opening; 26, positioning jack; 27, ejector rod; 28, placing ring. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Embodiment 1

[0020] As Figures 1-4 shown, the present invention provides a technical solution: a new type of composite sleeve outdoor terminal, including a base 10, a conductor 11 is inserted and fixed on the base 10, a stress cone 12 is fixedly sleeved outside the conductor 11, an insulating sleeve 13 is arranged outside the conductor 11, an insulating medium 14 is filled between the insulating sleeve 13 and the conductor 11, an outer skirt sleeve 15 is arranged on the outer wall of the insulating sleeve 13, the outer skirt sleeve 15 is sleeved outside the insulating sleeve 13, and a connection component is arranged at the bottom end of the outer skirt sleeve 15. The outer skirt sleeve 15 is detachably fixed to the base 10 through the connection component. A sealing flange 16 is arranged at the top of the insulating sleeve 13, and a high-voltage shielding box 17 is fixedly installed on the sealing flange 16.

[0021] During the specific use process:

[0022] Installation of the conductor 11: Insert the conductor 11 into the base 10 to ensure a stable connection between the conductor 11 and the base 10.

[0023] Installation of the stress cone 12: Install the stress cone 12 on the conductor 11. The function of the stress cone 12 is to optimize the electric field distribution, reduce the electric field concentration, and thus improve the insulation performance.

[0024] Filling of the insulating medium 14: Fill the insulating medium 14 between the conductor 11 and the insulating sleeve 13 to provide good insulation effect. This medium can be insulating silicone grease.

[0025] Installation of the insulating sleeve 13: Sleeve the insulating sleeve 13 outside the conductor 11 to accommodate the filled insulating medium 14.

[0026] Installation of the outer skirt sleeve 15: The outer skirt sleeve 15 is mounted on the outside of the insulating sleeve 13, and the outer skirt sleeve 15 is detachably fixed to the base 10 through a connecting assembly. The outer skirt sleeve 15 can effectively prevent impurities such as dust and moisture in the external environment from entering the interior of the insulating sleeve 13, thereby avoiding damage to the insulating medium 14 and the conductor 11, ensuring the stable operation of the terminal, and the outer skirt sleeve 15 is easy to disassemble and install, effectively reducing maintenance costs.

[0027] Installation of the high-voltage shielding box 17: A sealing flange 16 is installed on the top of the insulating sleeve 13, and a high-voltage shielding box 17 is fixed on the sealing flange 16. The function of the high-voltage shielding box 17 is to prevent the external electric field from interfering with the inside of the terminal.

[0028] As an implementation method in this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the connection assembly includes an upper connection plate 20 symmetrically fixedly installed on the outer side wall of the outer skirt 15 and a lower connection plate 21 symmetrically fixedly installed on the outer side wall of the top of the base 10. The lower end surface of the upper connection plate 20 is symmetrically provided with a limited sliding groove 22, and the limited sliding groove 22 is slidably connected with a limited slider 23. A plurality of return springs 24 are arranged between the two limited sliders 23. A limited opening 25 is arranged on the lower connection plate 21. The side walls of the two limited sliders 23 are provided with a positioning hole 26, and a push rod 27 is transversely inserted into the positioning hole 26. In the specific use process, the outer skirt 15 is first inserted into the insulating sleeve 13 from top to bottom, The upper connecting plate 20 is placed above the corresponding lower connecting plate 21, and then the two push rods 27 are inserted into the two corresponding positioning holes 26, and the two push rods 27 are pushed synchronously to make the two limit sliders 23 approach each other. When the top ends of the two limit sliders 23 pass vertically downward through the limit opening 25, the push rods 27 are manually pulled out, so that the two limit sliders 23 are moved away from each other by the rebound force of the reset spring 24, so that the outer skirt sleeve 15 is fixed on the insulating sleeve 13. This structure can complete the installation of the outer skirt sleeve 15 without using special tools, and the operation is simple and convenient, and the outer skirt sleeve 15 can be quickly installed and removed.

[0029] As an implementation method in this embodiment, Figure 3 As shown, both ends of the return spring 24 are fixedly connected to the corresponding side walls of the limit slider 23. During specific use, the return spring 24 is used to drive the two limit sliders 23 to translate.

[0030] As an implementation method in this embodiment, Figure 2 As shown, two sets of storage rings 28 for placing the top rods 27 are fixedly connected to the outer walls on both sides of the base 10 opposite to each other, so as to prevent the top rods 27 from being lost or dropped due to having nowhere to place them.

[0031] As an implementation manner in this embodiment, as Figure 4 shown, support insulators 18 are symmetrically arranged on both sides of the base 10, and the support insulators 18 play a role in insulating from the overhead line.

[0032] Working principle: During use, first insert the outer skirt 15 into the insulating sleeve 13 from top to bottom, and place the upper connecting plate 20 above the corresponding lower connecting plate 21. Then insert the two ejector rods 27 into two corresponding positioning jacks 26, and simultaneously push the two ejector rods 27 to make the two limit sliders 23 approach each other. When the tops of the two limit sliders 23 vertically pass through the limit opening 25, manually pull out the ejector rods 27, so that the two limit sliders 23 move away from each other by the rebounding force of the return spring 24, thereby fixing the outer skirt 15 on the insulating sleeve 13. This structure can complete the installation of the outer skirt 15 without using special tools, is simple and convenient to operate, and can quickly install and disassemble the outer skirt 15.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A novel composite sleeve type outdoor terminal, comprising a base (10), characterized in that: A conductor (11) is plugged and fixed on the base (10); a stress cone (12) is fixedly sleeved outside the conductor (11); an insulating sleeve (13) is provided outside the conductor (11); an insulating medium (14) is filled between the insulating sleeve (13) and the conductor (11); an outer skirt sleeve (15) is provided on the outer wall of the insulating sleeve (13); the outer skirt sleeve (15) is sleeved outside the insulating sleeve (13); a connecting component is provided at the bottom end of the outer skirt sleeve (15); the outer skirt sleeve (15) is detachably fixed to the base (10) via the connecting component; and a sealing member is provided at the top of the insulating sleeve (13). A sealing flange (16) is fixedly mounted with a high-voltage shielding box (17); the connecting assembly comprises an upper connecting plate (20) symmetrically fixedly mounted on the outer side wall of the outer skirt (15) and a lower connecting plate (21) symmetrically fixedly mounted on the outer side wall of the top of the base (10); a limiting slide groove (22) is symmetrically provided on the lower end surface of the upper connecting plate (20); a limiting slide block (23) is slidably connected in each of the limiting slide grooves (22); a plurality of return springs (24) are arranged between the two limiting slide blocks (23); and a limiting opening (25) is provided on the lower connecting plate (21).

2. According to claim 1, a novel composite sleeve type outdoor terminal is characterized in that: Both ends of the return spring (24) are respectively fixedly connected to the corresponding side walls of the limiting slide block (23).

3. According to claim 1, a novel composite sleeve type outdoor terminal is characterized in that: Positioning holes (26) are provided on the side walls of the two limit slide blocks (23), and push rods (27) are transversely inserted into the positioning holes (26).

4. A novel composite sleeve outdoor terminal according to claim 3, characterized in that: Two sets of storage rings (28) for placing top rods (27) are fixedly connected to the outer walls on two opposite sides of the base (10).

5. According to claim 1, a novel composite sleeve type outdoor terminal is characterized in that: Post insulators (18) are symmetrically arranged on both sides of the base (10).

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