Vacuum insulation operation tube for high-voltage vacuum load switch

Abstract

The utility model discloses a vacuum insulation operation tube for a high-voltage vacuum load switch. The vacuum insulation operation tube comprises a copper rod, a ceramic voltage-sharing cover, an insulation seat, a rectangular frame, a spring pushing hole block, a movable conducting rod, a pin rod, an opening and closing push-pull piece, a vacuum arc-extinguishing insulation tube and a spring. The high-voltage vacuum load switch is reasonable in structure, an arc extinguish chamber can be formed by using the ceramic voltage-sharing cover and the vacuum insulation operation tube, the operation safety of the high-voltage vacuum load switch is enhanced, and meanwhile, the configured opening and closing implementation linkage structure can achieve the effect of rapid opening and closing under the action of the spring, so that the hidden danger of discharge is avoided, and the service life of the high-voltage vacuum load switch is prolonged. The compression spring is moved through the spring pushing hole block to enable the first pin hole to coincide with the second pin hole, the tightness between the opening and closing linkage structures is improved, and the opening energy storage effect is achieved.

Description

Technical Field

[0001] The utility model relates to a vacuum insulation operating tube, in particular to a vacuum insulation operating tube for a high-voltage vacuum load switch, belonging to the technical field of high-voltage switch application. Background Art

[0002] AC high-voltage vacuum load switch is suitable for three-phase AC high-voltage power system, and is used in conjunction with power distribution equipment, ring network switch cabinets, combined substations, etc. It has the ability to break rated current, overload current and prevent equipment from running in phase loss. The switch has a clearly visible isolation break, is equipped with a grounding switch with closing ability and an electric spring mechanism, and has remote control capabilities.

[0003] The existing insulating operating tube for high-voltage vacuum load switch has a simple structure, poor arc extinguishing effect, and a high discharge risk factor during the switch opening and closing operations. Therefore, a vacuum insulating operating tube for high-voltage vacuum load switch is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum insulation operating tube for a high-voltage vacuum load switch in order to solve the above-mentioned problem.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a vacuum insulating operating tube for a high-voltage vacuum load switch, comprising a copper rod, a ceramic voltage-equalizing cover, an insulating seat, a rectangular frame, a spring pushing hole block, a moving conductive rod, a pin rod, a switch-opening and closing push-pull member, a vacuum arc-extinguishing insulating tube and a spring, the copper rod and the vacuum arc-extinguishing insulating tube are both located in the same ceramic voltage-equalizing cover, and one end of the copper rod is fixed at one end in the vacuum arc-extinguishing insulating tube, an end face of one end of the moving conductive rod located in the vacuum arc-extinguishing cover contacts with an end face of one end of the copper rod, and a spring is sleeved on the outside of the moving conductive rod, a spring pushing hole block is installed on one end of the spring, and the inner surface of the spring pushing hole block and the outer surface of the moving conductive rod are in sliding contact with each other, and a pin hole 1 located on the spring pushing hole block overlaps with a pin hole 2 located on the outside of the moving conductive rod through movement.

[0006] Preferably, an insulating seat is installed at one end of the ceramic pressure-equalizing cover, and a rectangular frame is installed on the insulating seat.

[0007] Preferably, the inner bottom of the rectangular frame is movably connected to the middle of the opening and closing push-pull member through a rotating shaft, and the pin rod located at the top of the opening and closing push-pull member passes through the pin hole 1 and the pin hole 2 which overlap with each other.

[0008] Preferably, the other end of the spring is mounted on a side wall at one end of the L-shaped member, and the hole structure located on the side wall at one end of the L-shaped member passes through the movable conductive rod portion.

[0009] Preferably, a threaded structure is provided on the outer surface of the movable conductive rod.

[0010] The beneficial effects of the utility model are as follows: an arc extinguishing chamber can be formed by utilizing a ceramic voltage-equalizing cover and a vacuum-insulated operating tube, thereby enhancing the safety of the operation of a high-voltage vacuum load switch; at the same time, a linkage structure for implementing opening and closing of the switch is configured and, under the action of a spring, the effect of rapid opening and closing of the switch is achieved, thereby avoiding the occurrence of hidden discharge hazards; the spring pushes the hole block to move the compression spring to overlap the pin hole one with the pin hole two, thereby improving the tightness between the opening and closing linkage structures and achieving the effect of storing energy for the opening of the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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 or the description of the prior art 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 labor.

[0012] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0013] Figure 2 It is a three-dimensional diagram of the overall and partial connection structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the connection structure between the vacuum arc extinguishing insulating tube and the spring of the utility model.

[0015] In the figure: 1. Copper rod; 2. Ceramic equalizing cover; 3. Insulating seat; 4. Rectangular frame; 5. Spring push hole block; 501. Pin hole one; 6. Moving conductive rod; 601. Pin hole two; 7. Pin rod; 8. Opening and closing push-pull piece; 9. Vacuum arc extinguishing insulating tube; 10. Spring; 11. L-shaped piece. DETAILED DESCRIPTION

[0016] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] See also Figure 1-3 As shown, a vacuum insulating operating tube for a high-voltage vacuum load switch comprises a copper rod 1, a ceramic voltage-equalizing cover 2, an insulating seat 3, a rectangular frame 4, a spring pushing hole block 5, a moving conductive rod 6, a pin rod 7, a switch-opening and closing push-pull member 8, a vacuum arc-extinguishing insulating tube 9 and a spring 10. The copper rod 1 and the vacuum arc-extinguishing insulating tube 9 are both located in the same ceramic voltage-equalizing cover 2, and one end of the copper rod 1 is fixedly located in one end of the vacuum arc-extinguishing insulating tube 9, an end face of the moving conductive rod 6 located in the vacuum arc-extinguishing cover is in contact with an end face of the copper rod 1, and a spring 10 is sleeved on the outside of the moving conductive rod 6, a spring pushing hole block 5 is installed on one end of the spring 10, and the inner surface of the spring pushing hole block 5 and the outer surface of the moving conductive rod 6 are in sliding contact with each other, and the pin hole 1 501 located on the spring pushing hole block 5 is overlapped with the pin hole 2 601 located on the outside of the moving conductive rod 6 by movement.

[0020] An insulating seat 3 is installed at one end of the ceramic voltage-equalizing cover 2, and a rectangular frame 4 is installed on the insulating seat 3; the inner bottom of the rectangular frame 4 is movably connected to the middle part of the opening and closing push-pull member 8 through a rotating shaft, and the pin rod 7 located at the top of the opening and closing push-pull member 8 passes through the overlapping pin hole 1 501 and pin hole 2 601; the other end of the spring 10 is installed on the side wall of one end of the L-shaped member 11, and the hole structure located on the side wall of one end of the L-shaped member 11 passes through a part of the movable conductive rod 6; the outer surface of the movable conductive rod 6 is provided with a threaded structure.

[0021] When the utility model is in use, when the bottom end of the opening and closing push-pull member 8 is subjected to the inward pulling force and is in a side-turning state, the top end of the opening and closing push-pull member 8 is side-turned outward, thereby driving the movable conductive rod 6 connected to the distribution rod 7 to move outward, so that the end face of one end of the movable conductive rod 6 located in the vacuum arc extinguishing insulating tube 9 is separated from the end face of one end of the copper rod 1 located in the vacuum arc extinguishing insulating tube 9, achieving the effect of opening the switch, and completing the closing operation through the above-mentioned reverse operation mode;

[0022] To sum up: the use of ceramic equalizing hood and vacuum insulated operating tube can form an arc extinguishing chamber, enhance the safety of high-voltage vacuum load switch operation, and at the same time, the configured opening and closing linkage structure is implemented under the action of the spring to achieve the effect of rapid opening and closing, avoiding the occurrence of hidden discharge hazards, and the spring pushes the hole block to move the compression spring to overlap the pin hole one and the pin hole two, thereby improving the tightness between the opening and closing linkage structure and achieving the effect of opening energy storage.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0024] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A vacuum insulated operating tube for a high voltage vacuum load switch, characterized in that: The invention comprises a copper rod (1), a ceramic voltage-equalizing cover (2), an insulating seat (3), a rectangular frame (4), a spring-pushing hole block (5), a moving conductive rod (6), a pin rod (7), a switch-opening and closing push-pull member (8), a vacuum arc-extinguishing insulating tube (9) and a spring (10). The copper rod (1) and the vacuum arc-extinguishing insulating tube (9) are both located in the same ceramic voltage-equalizing cover (2), and one end of the copper rod (1) is fixedly located in one end of the vacuum arc-extinguishing insulating tube (9). The end face of one end of the moving conductive rod (6) located in the vacuum arc-extinguishing cover contacts the end face of one end of the copper rod (1), and the outside of the moving conductive rod (6) is sleeved with a spring (10), and one end of the spring (10) is installed with a spring-pushing hole block (5), and the inside of the spring-pushing hole block (5) and the outer surface of the moving conductive rod (6) are in sliding contact with each other, and a pin hole 1 (501) located on the spring-pushing hole block (5) overlaps with a pin hole 2 (601) located outside the moving conductive rod (6) by moving.

2. The vacuum insulated operating tube for a high-voltage vacuum load switch according to claim 1, characterized in that: An insulating seat (3) is installed at one end of the ceramic voltage-equalizing cover (2), and a rectangular frame (4) is installed on the insulating seat (3).

3. The vacuum insulated operating tube for a high-voltage vacuum load switch according to claim 1, characterized in that: The inner bottom of the rectangular frame (4) is movably connected to the middle of the opening and closing push-pull member (8) via a rotating shaft, and the pin rod (7) located at the top of the opening and closing push-pull member (8) passes through the pin hole 1 (501) and the pin hole 2 (601) which overlap with each other.

4. The vacuum insulated operating tube for a high-voltage vacuum load switch according to claim 1, characterized in that: The other end of the spring (10) is mounted on a side wall at one end of the L-shaped member (11), and a hole structure located on the side wall at one end of the L-shaped member (11) passes through a portion of the movable conductive rod (6).

5. The vacuum insulated operating tube for a high-voltage vacuum load switch according to claim 1, characterized in that: The outer surface of the movable conductive rod (6) is provided with a thread structure.

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