Solid-sealed environment-friendly pole

Abstract

The utility model discloses a solid-sealed environment-friendly pole which comprises an insulating cylinder, a nylon wrapping base is arranged at the bottom end of the insulating cylinder, an arc extinguish chamber is arranged at the top in the insulating cylinder, and an insulating pull rod is arranged at the top in the insulating cylinder; the top and the bottom of the outer side of the circumference of the insulating cylinder are provided with insulating skirts, the top end of the insulating cylinder is provided with a plugging cover, and the middle position of one side of the insulating cylinder is provided with a movable cutter holder. According to the utility model, by adopting the integrated solid-sealed polar pole, the insulating property is improved, the influence of external force and external environment on the arc extinguish chamber is avoided, the external insulating strength is enhanced, the workload of manual assembly is reduced, and errors of possible outgoing lines in the polar pole assembly process are reduced, so that the safety and reliability of the circuit breaker are further improved, and the service life of the circuit breaker is prolonged. Under the condition that insulation of all parts is guaranteed, the gas tank can be designed to be more compact.

Description

Technical Field

[0001] The utility model relates to the field of solid-sealed poles, in particular to a solid-sealed environment-friendly pole. Background Art

[0002] The solid-sealed pole is produced by injecting epoxy resin into a preheated mold containing a vacuum interrupter and other conductive parts using the APG process, which completely isolates the vacuum interrupter and other conductive parts from the external environment, avoiding the influence of external forces and the external environment on the interrupter and other conductive parts, improving the safety and reliability of operation, and is the core component of the switch cabinet. However, the existing solid-sealed pole embeds the vacuum interrupter and the conductive parts related to the circuit breaker into a solid insulating material such as thermoplastic material that is easy to solidify to form a pole, making the entire circuit breaker pole an integral component, but it still has many defects in the actual use environment, such as:

[0003] ① Thermosetting polymer insulation materials used to seal the arc extinguishing chamber poles cannot meet environmental protection recycling requirements.

[0004] ② The arc extinguishing chamber adopts an assembled form, and its large size must be taken into consideration.

[0005] ③ The split type and arc extinguishing chamber assembly form have problems such as large workload and high error.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the utility model provides a sealed and environmentally friendly pole, which has the advantages of integrated sealing, compact structure and recyclability, thereby solving the problems of the existing sealed poles being difficult to assemble, non-recyclable materials and large space occupied.

[0009] (II) Technical solution

[0010] In order to achieve the above advantages of integrated sealing, compact structure and recyclability, the specific technical solutions adopted by the utility model are as follows:

[0011] A sealed and environmentally friendly pole comprises an insulating cylinder, a nylon-wrapped base is arranged at the bottom end of the insulating cylinder, an arc-extinguishing chamber is arranged at the top of the insulating cylinder, and an insulating pull rod is arranged at the top of the insulating cylinder; insulating skirts are arranged at the top and bottom of the outer side of the circumference of the insulating cylinder, a sealing cover is arranged at the top of the insulating cylinder, and a moving knife seat is arranged in the middle position of one side of the insulating cylinder.

[0012] Furthermore, in order to stably install and fix the sealed pole, fixing bolts are arranged around the nylon wrapped base.

[0013] Furthermore, in order to maintain the connection between the arc extinguishing chamber and the insulating pull rod, and to maintain the connection with the external equipment through the outlet terminal, a connecting column is arranged between the bottom of the arc extinguishing chamber and the top of the insulating pull rod, and an outlet terminal is arranged inside the moving knife seat, and one end of the outlet terminal is sleeved on the outer side of the circumference of the connecting column.

[0014] Furthermore, in order to form a top outlet and ensure the sealing and insulating performance of the sealed pole itself, a wire outlet rod is arranged between the bottom of the sealing cover and the top of the arc extinguishing chamber, a supporting knife seat is arranged on the side of the top of the insulating cylinder away from the moving knife seat, and a supporting copper rod is arranged on the end of the supporting knife seat away from the sealing cover.

[0015] Furthermore, in order to form an integrated solid-sealed pole, reduce the difficulty of assembly, and ensure the stable and reliable performance of the solid-sealed pole, an integrated solid-sealed structure is adopted between the insulating cylinder and the arc extinguishing chamber, the moving knife seat and the supporting knife seat.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a sealed and environmentally friendly pole, which has the following beneficial effects:

[0018] (1) By adopting an integrated sealed pole, the insulation performance is improved, the influence of external force and external environment on the arc extinguishing chamber is avoided, the external insulation strength is enhanced, the workload of manual assembly is reduced, and the error of the line during pole assembly is reduced, thereby further improving the safety and reliability of the circuit breaker. While ensuring the insulation of each component, the gas box can be designed to be more compact.

[0019] (2) By using nylon PA66 material to make the sealed pole, it can be 100% recyclable and reused, while effectively ensuring the support and structural strength.

[0020] (3) By integrally sealing the arc extinguishing chamber, the supporting knife seat and the moving knife seat, the electric field inside the sealed pole is evenly distributed, which improves the insulation capacity of the sealed pole and has very few detachable parts, greatly improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is one of the front structural schematic diagrams of the solid-sealed environmentally friendly pole according to an embodiment of the utility model;

[0023] Figure 2This is the second schematic diagram of the front structure of the solid-sealed environmentally friendly pole according to the embodiment of the utility model;

[0024] Figure 3 This is one of the cross-sectional schematic diagrams of the solid-sealed environment-friendly pole according to an embodiment of the utility model;

[0025] Figure 4 This is a second cross-sectional schematic diagram of the solid-sealed environmentally friendly pole according to an embodiment of the utility model.

[0026] In the figure:

[0027] 1. Insulating cylinder; 2. Nylon wrapped base; 3. Arc extinguishing chamber; 4. Insulating pull rod; 5. Insulating skirt; 6. Sealing cover; 7. Moving knife seat; 8. Fixing bolt; 9. Connecting column; 10. Outgoing terminal; 11. Outgoing rod; 12. Support knife seat; 13. Support copper rod. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, a sealed and environment-friendly pole is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, the sealed and environmentally friendly pole according to the embodiment of the utility model includes an insulating cylinder 1, a nylon-wrapped base 2 is arranged at the bottom end of the insulating cylinder 1, an arc extinguishing chamber 3 is arranged at the top of the insulating cylinder 1, and an insulating pull rod 4 is arranged at the top of the insulating cylinder 1; insulating skirts 5 are arranged at the top and bottom of the outer side of the circumference of the insulating cylinder 1, a sealing cover 6 is arranged at the top of the insulating cylinder 1, and a moving knife seat 7 is arranged in the middle position of one side of the insulating cylinder 1.

[0031] With the help of the above technical solution, by adopting an integrated sealed pole, the insulation performance is improved, the influence of external force and external environment on the arc extinguishing chamber 3 is avoided, the external insulation strength is enhanced, the workload of manual assembly is reduced, and the possible errors in the line during the pole assembly process are reduced, thereby further improving the safety and reliability of the circuit breaker. While ensuring the insulation of each component, the gas box can be designed to be more compact.

[0032] In one embodiment, for the nylon wrapped base 2, fixing bolts 8 are arranged around the nylon wrapped base 2, so that the sealed pole can be stably installed and fixed.

[0033] In one embodiment, for the above-mentioned arc extinguishing chamber 3, a connecting column 9 is arranged between the bottom of the arc extinguishing chamber 3 and the top of the insulating pull rod 4, and an outlet terminal 10 is arranged inside the movable knife seat 7. One end of the outlet terminal 10 is sleeved on the outer side of the circumference of the connecting column 9, so as to maintain the connection between the arc extinguishing chamber 3 and the insulating pull rod 4, and maintain connection with external equipment through the outlet terminal 10.

[0034] In one embodiment, for the above-mentioned sealing cover 6, a lead-out rod 11 is arranged between the bottom of the sealing cover 6 and the top of the arc extinguishing chamber 3, a supporting knife seat 12 is arranged on the side of the top of the insulating cylinder 1 away from the moving knife seat 7, and a supporting copper rod 13 is arranged on the end of the supporting knife seat 12 away from the sealing cover 6, thereby forming a top lead-out line and ensuring the sealing and insulating performance of the sealed pole itself.

[0035] In one embodiment, for the above-mentioned insulating cylinder 1, an integrated solid-sealed structure is adopted between the insulating cylinder 1 and the arc extinguishing chamber 3, the movable knife seat 7 and the supporting knife seat 12, thereby forming an integrated solid-sealed pole, reducing the difficulty of assembly and ensuring the stable and reliable performance of the solid-sealed pole.

[0036] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0037] In actual application, the insulating cylinder 1, the movable knife seat 7 and the supporting knife seat 12 are cast in an integrated manner. The two knife seats are conductively connected to the two ends of the arc extinguishing chamber 3 respectively. The knife seats have a universal module connection structure and can be rotated 180° up and down. The upper and lower isolation schemes can be mutually closed. A pole connection structure is provided on the connection end. The insulating cylinder 1 can be connected to different joint knife seats through the pole connection structure.

[0038] When assembling the sealed pole on the circuit breaker, just install the corresponding joint module on the corresponding adapter. The insulating cylinder 1 can be shared and has strong versatility. The insulating cylinder 1 only needs one mold, and there is no need to design a special mold for each sealed pole, which greatly saves production costs. The circuit breaker mechanism drives the circuit breaker main shaft to move (the rotation angle is 10° on each side). The circuit breaker main shaft pulls the insulating pull rod 4 in the form of a crank arm. The pull rod contains an overtravel spring. The working pressure is greater than 1700N. The overtravel of 3mm causes the arc extinguishing chamber 3 in the sealed pole to open and close, so that the circuit breaker sealed pole has two states: open and closed.

[0039] In addition, the material used in the sealed pole is mainly nylon PA66, which is 100% recyclable and has excellent environmental performance. Nylon PA66 is both the main insulation of the primary part and the mechanical support.

[0040] In summary, with the aid of the above-mentioned technical solution of the utility model, by adopting an integrated sealed pole, the insulation performance is improved, the influence of external force and external environment on the arc extinguishing chamber 3 is avoided, the external insulation strength is enhanced, the workload of manual assembly is reduced, and the error of the line that may be produced during the pole assembly process is reduced, thereby further improving the safety and reliability of the circuit breaker. While ensuring the insulation of each component, the gas box can be designed to be more compact. By adopting the sealed pole made of nylon PA66 material, 100% recyclability and reuse are achieved, while effectively ensuring the support and structural strength. By sealing the arc extinguishing chamber 3, the supporting knife seat 12 and the moving knife seat 7 in an integrated manner, the electric field in the sealed pole is evenly distributed, the insulation capacity of the sealed pole is improved, and there are very few detachable parts, which greatly improves the reliability.

[0041] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed and environmentally friendly pole, comprising an insulating cylinder (1), characterized in that: A nylon-wrapped base (2) is provided at the bottom end of the insulating cylinder (1), an arc-extinguishing chamber (3) is provided at the top of the insulating cylinder (1), and an insulating pull rod (4) is provided at the top of the insulating cylinder (1); The insulating cylinder (1) is provided with insulating skirts (5) at the top and bottom of the outer circumference, a sealing cover (6) is provided at the top of the insulating cylinder (1), and a moving knife seat (7) is provided at the middle position of one side of the insulating cylinder (1).

2. The sealed and environmentally friendly pole according to claim 1, characterized in that: The nylon-wrapped base (2) is provided with fixing bolts (8) all around.

3. The sealed and environmentally friendly pole according to claim 1, characterized in that: A connecting column (9) is provided between the bottom of the arc extinguishing chamber (3) and the top of the insulating pull rod (4).

4. The sealed and environmentally friendly pole according to claim 3, characterized in that: An outlet terminal (10) is arranged inside the movable knife seat (7), and one end of the outlet terminal (10) is sleeved outside the circumference of the connecting column (9).

5. The sealed and environmentally friendly pole according to claim 1, characterized in that: A lead-out rod (11) is provided between the bottom of the blocking cover (6) and the top of the arc extinguishing chamber (3), and a supporting knife seat (12) is provided on the side of the top of the insulating cylinder (1) away from the movable knife seat (7).

6. The sealed and environmentally friendly pole according to claim 5, characterized in that: A supporting copper rod (13) is provided at one end of the supporting knife seat (12) away from the blocking cover (6).

7. The sealed and environmentally friendly pole according to claim 6, characterized in that: An integral sealing structure is adopted between the insulating cylinder (1), the arc extinguishing chamber (3), the movable knife seat (7) and the supporting knife seat (12).

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