Performance detection device for vacuum arc-extinguishing chamber

Abstract

The utility model discloses a performance detection device for a vacuum arc-extinguishing chamber, which comprises a supporting plate, a supporting plate and an insulation detection transformer, the supporting plate is arranged at the top of the supporting plate, the insulation detection transformer is arranged at the bottom of the supporting plate, the supporting plate is movably provided with a vertical clamping plate, the vertical clamping plate is provided with a horizontal slot, and the vertical clamping plate is provided with a horizontal slot. The top of the clamping plate is provided with a fastener which extends downwards into the slot, and the supporting plate is provided with a moving contact reciprocating pulling member which is located at the upper part of the supporting plate. The utility model belongs to the technical field of vacuum arc-extinguishing chamber performance detection devices, and particularly relates to a performance detection device for a vacuum arc-extinguishing chamber.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum interrupter performance detection devices, in particular to a vacuum interrupter performance detection device. Background Art

[0002] A vacuum interrupter primarily consists of a housing, moving contacts, stationary contacts, and bellows. The bellows is a key flexible sealing component, connecting the moving contacts to a portion of the housing. During a vacuum connection test, it's usually necessary to electrically connect the output of the insulation test transformer to the moving contacts of the vacuum interrupter, while grounding the stationary contacts.

[0003] However, when conducting vacuum tests, existing test devices do not consider simulating the normal working state of the bellows in the extended and retracted state, i.e., simulating its actual opening and closing operations. As a result, the actual vacuum condition of the vacuum interrupter may not be truly reflected, thereby reducing the accuracy of the test. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing testing device cannot truly reflect the actual vacuum degree of the vacuum interrupter during vacuum degree testing, thereby reducing the accuracy of the test.

[0005] In order to achieve the above functions, the technical solution adopted by the present invention is as follows: A performance detection device for a vacuum arc chamber, comprising a support plate, a pallet and an insulation detection transformer, wherein the pallet is arranged at the top of the support plate, and the insulation detection transformer is arranged at the bottom of the support plate. A vertical clamping plate is movably provided on the pallet, a horizontal slot is provided on the vertical clamping plate, a fastener extending downward into the slot is provided on the top of the clamping plate, and a reciprocating pulling member of a moving contact is provided on the support plate and located at the upper part of the pallet.

[0006] Preferably, the fastener includes a fastening bolt 1, which is threadedly connected to the vertical clamping plate and has its bottom end located in a slot. When in use, the fastening bolt 1 presses the static contact of the vacuum interrupter.

[0007] Preferably, the reciprocating pulling member of the moving contact includes a sliding rod and a connecting seat and a cylinder respectively connected to its two ends. The sliding rod passes through the support plate horizontally and movably. The connecting seat is provided with a through groove running through its left and right sides, and is also provided with two fastening bolts extending vertically into the through groove. The fixed end of the cylinder is fixed to the side wall of the support plate.

[0008] Preferably, the cross-section of the support plate is a bent plate structure with high sides and a low middle. A symmetrical slide groove is provided on the support plate. Three fastening bolts are fixed to the bottom of the card plate. After the three fastening bolts pass through the slide groove, they are threadedly connected with nuts.

[0009] Preferably, the sliding rods are provided in two groups, and the ends of the two groups of sliding rods are provided with connecting plates, the connecting plates are arranged in a T-shaped structure, and the movable end of the cylinder is arranged on the connecting plate.

[0010] Preferably, a base frame is provided at the bottom of the support plate, the base frame is arranged in a V-shaped structure, and the insulation detection transformer is arranged on the base frame.

[0011] Preferably, the side of the support plate is provided with a rib connected to the bottom of the support plate.

[0012] The utility model adopts the above structure to achieve the following beneficial effects: the static contact of the vacuum interrupter is passed through the slot, connected to the static contact of the vacuum interrupter through a wire and then grounded, the moving contact of the vacuum interrupter is connected to the insulation detection transformer through a wire, the insulation detection transformer applies an AC voltage to the vacuum interrupter, the moving contact of the vacuum interrupter is connected to the moving contact reciprocating pulling member to simulate the opening and closing working state of the vacuum interrupter, and the bellows can be extended and retracted to improve the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The overall structure of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 The overall structure of the embodiment of the utility model is shown in FIG. Figure 3 ;

[0016] Figure 4 The overall structure of the embodiment of the utility model is shown in FIG. Figure 4 ;

[0017] Figure 5 This is a usage state diagram of an embodiment of the utility model.

[0018] Among them, 1. Support plate, 2. Support plate, 3. Insulation detection transformer, 4. Vertical card plate, 5. Slot, 6. Fastener, 7. Moving contact reciprocating pulling member, 8. Fastening bolt 1, 9. Connecting seat, 10. Slide rod, 11. Cylinder, 12. Through slot, 13. Fastening bolt 2, 14. Slide slot, 15. Fastening bolt 3, 16. Nut, 17. Connecting plate, 18. Base frame, 19. Rib plate. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figure 1-5 As shown, the utility model proposes a performance detection device for a vacuum interrupter, comprising a support plate 1, a support plate 2 and an insulation detection transformer 3. The bottom of the support plate 1 is provided with a base frame 18, and the base frame 18 is a V-shaped structure. The insulation detection transformer 3 is arranged on the base frame 18, and the support plate 2 is arranged on the top side wall of the support plate 1. The side of the support plate 1 is provided with a rib 19 connected to the bottom of the support plate 2. A vertical card plate 4 is movably provided on the support plate 2, and a horizontal slot 5 is provided on the vertical card plate 4. The top of the card plate 4 is provided with a slot extending downward to the slot 5. Fastener 6, a moving contact reciprocating pulling piece 7 is provided on the support plate 1 and located on the upper part of the support plate 2, and the static contact of the vacuum interrupter 20 is horizontally passed through the slot 5, connected to the static contact of the vacuum interrupter 20 through a wire and then grounded, the moving contact of the vacuum interrupter 20 is connected to the insulation detection transformer 3 through a wire, the insulation detection transformer 3 applies an AC voltage to the vacuum interrupter 20, and the moving contact of the vacuum interrupter 20 is connected to the moving contact reciprocating pulling piece 7 to simulate the opening and closing working state of the vacuum interrupter 20, and the bellows can be retracted to improve the accuracy of the test.

[0022] like Figure 4 As shown, the fastener 6 includes a fastening bolt 8, which is threadedly connected to the vertical clamping plate 4 and has its bottom end located in the slot 5. When in use, the fastening bolt 8 presses the static contact of the vacuum interrupter 20.

[0023] like Figure 2As shown, the moving contact reciprocating pulling member 7 includes a slide rod 10 and a connecting seat 9 and a cylinder 11 respectively connected to its two ends. The slide rod 10 passes through the support plate 1 horizontally and movably. The connecting seat 9 is provided with a through slot 12 running through its left and right sides, and is also provided with a fastening bolt 13 vertically extending into the through slot 12. The fixed end of the cylinder 11 is fixed to the side wall of the support plate 1, and the moving contact of the vacuum interrupter 20 is inserted into the through slot 12 and squeezed and fixed by the fastening bolt 13. When the cylinder 11 is extended and retracted, the connecting seat 9 can be pulled to perform reciprocating motion by the slide rod 10 connected thereto to simulate the extension and retraction working state of the bellows.

[0024] like Figure 3 As shown, the cross-section of the support plate 2 is a bent plate structure with high sides and a low middle. A symmetrical slide groove 14 is provided on the support plate 2. A fastening bolt 3 15 is fixed to the bottom of the clamping plate 4. The fastening bolt 3 15 is threadedly connected to a nut 16 after passing through the slide groove 14. By loosening the nut 16, the distance between the sliding clamping plate 4 and the support plate 1 can be adjusted according to the size of the vacuum interrupter 20 for fixing.

[0025] like Figure 4 As shown, there are two groups of sliding rods 10 , and connecting plates 17 are provided at the ends of the two groups of sliding rods 10 . The connecting plates 17 are T-shaped structures, and the movable ends of the cylinders 11 are provided on the connecting plates 17 .

[0026] During specific use, the nut 16 is loosened, and the distance between the sliding vertical clamping plate 4 and the support plate 1 can be adjusted according to the size of the vacuum interrupter 20 to fix the vacuum interrupter 20.

[0027] Pass the static contact of the vacuum interrupter 20 through the slot 5, tighten the static contact of the vacuum interrupter 20 with the tightening bolt 8, connect the wire to the static contact of the vacuum interrupter 20 and then ground it, insert the moving contact of the vacuum interrupter 20 into the through slot 12 of the connecting seat 9 and fix it with the tightening bolt 2 13, pass the insulation detection transformer 3 through the through slot 12 with the wire and connect it to the moving contact of the vacuum interrupter 20.

[0028] When the cylinder 11 is extended and retracted, the connecting seat 9 can be pulled to reciprocate by the sliding rod 10 to simulate the opening and closing working state of the vacuum interrupter 20 and the extension and retraction working state of the bellows. The insulation detection transformer 3 applies an AC voltage to the vacuum interrupter 20 to improve the accuracy of the test.

[0029] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A performance detection device for a vacuum interrupter, characterized in that: It includes a support plate, a pallet and an insulation detection transformer. The pallet is arranged on the top of the support plate, the insulation detection transformer is arranged on the bottom of the support plate, a vertical clamping plate is movably provided on the pallet, a horizontal slot is provided on the vertical clamping plate, a fastener extending downward into the slot is provided on the top of the clamping plate, and a moving contact reciprocating pulling member is provided on the support plate and located on the upper part of the pallet.

2. A vacuum interrupter performance detection device according to claim 1, characterized in that: The fastener includes a fastening bolt 1, which is threadedly connected to the vertical clamping plate and has its bottom end located in the slot. When in use, the fastening bolt 1 presses the static contact of the vacuum interrupter.

3. The vacuum interrupter performance detection device according to claim 1, characterized in that: The reciprocating pulling member of the moving contact includes a sliding rod and a connecting seat and a cylinder respectively connected to its two ends. The sliding rod passes through the support plate horizontally and movably. The connecting seat is provided with a through groove running through its left and right sides, and is also provided with two fastening bolts extending vertically into the through groove. The fixed end of the cylinder is fixed to the side wall of the support plate.

4. The vacuum interrupter performance detection device according to claim 1, characterized in that: The cross section of the support plate is a bent plate structure with high sides and a low middle. A symmetrical slide groove is provided on the support plate. Three fastening bolts are fixed to the bottom of the card plate. The three fastening bolts are threadedly connected with nuts after passing through the slide groove.

5. The vacuum interrupter performance detection device according to claim 3, characterized in that: The sliding rods are provided in two groups, and the ends of the two groups of sliding rods are provided with connecting plates, the connecting plates are arranged in a T-shaped structure, and the movable end of the cylinder is arranged on the connecting plate.

6. The vacuum interrupter performance detection device according to claim 1, characterized in that: A base frame is provided at the bottom of the support plate, the base frame is arranged in a V-shaped structure, and the insulation detection transformer is arranged on the base frame.

7. The vacuum interrupter performance detection device according to claim 1, characterized in that: The side of the support plate is provided with a rib plate connected to the bottom of the supporting plate.

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