Novel auxiliary junction box for calibrating transformer DC resistance tester

Abstract

The utility model discloses a novel auxiliary junction box for calibrating a transformer direct current resistance tester, which relates to the technical field of metering calibration and comprises a test box body and cover bodies rotationally connected to the upper surface and the rear surface of the test box body, and a fixed seat is mounted on the left side of the upper surface of the test box body. A junction box is rotatably connected to the inner surface of the fixed seat, a wire arrangement device is arranged at the inner bottom of the junction box, test wires are arranged inside and outside the wire arrangement device, and a test clamp is fixedly connected to one end of each test wire. Compared with an existing common auxiliary junction box for calibrating the transformer direct-current resistance tester, the auxiliary junction box for calibrating the transformer direct-current resistance tester has the advantages that when the test box body is used for testing, the wire arrangement device can be used for well accommodating a test wire, the clamping sheet can be used for accommodating and fixing the test clamp, and the insertion rod in the junction box is pulled out; therefore, the wire arranging device can be selectively disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of metrological calibration, in particular to a novel auxiliary junction box for calibrating a DC resistance tester of a transformer. Background Technique

[0002] The DC resistance test of a transformer winding is an essential test item for a transformer after handover overhaul and changing the tap switch. Currently, a DC resistance tester is usually used for testing, and most DC resistance testers on the market can be calibrated by simulating a high-power AC / DC standard resistance box. When most existing DC resistance test boxes are testing, the test wires are not sorted and stored. The test wires are easy to knot and get chaotic, resulting in incorrect connection of the test wires, affecting the test results, and there are also potential safety hazards.

[0003] Therefore, in view of this, in view of the deficiencies of the existing structure, research and improvement are carried out, and a novel auxiliary junction box for calibrating a DC resistance tester of a transformer is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a novel auxiliary junction box for calibrating a DC resistance tester of a transformer to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A novel auxiliary junction box for calibrating a DC resistance tester of a transformer, including a test box body and a cover body rotatably connected to the upper surface and the rear surface of the test box body. A fixed seat is installed at the left side position of the upper surface of the test box body. A junction box is rotatably connected to the inner surface of the fixed seat. A wire management device is arranged at the inner bottom of the junction box. Test wires are arranged inside and outside the wire management device. One end of the test wire is fixedly connected with a test clip. A disassembly mechanism is arranged on the lower surface of the wire management device and inside and outside the junction box. A limiting mechanism is arranged at the inner bottom of the junction box outside the test clip.

[0006] Preferably, the disassembly mechanism includes a plug fixedly connected to the lower surface of the wire management device, and a slot is opened on the outer surface of the plug. A plug rod is slidably connected to the inside and outside the outer surface of the junction box, and a locking spring is arranged on the outer circular surface of the plug rod.

[0007] Preferably, the limiting mechanism includes a plurality of limiting blocks fixedly connected to the inner bottom of the junction box, and a plurality of rotating rods are fixedly connected to the inner bottom of the junction box near the limiting blocks. A card is rotatably connected to the upper surface of the rotating rod.

[0008] Preferably, a screw hole is opened on the upper surface of the test box body, and the fixed seat is fixedly connected to the upper surface of the test box body by screws.

[0009] Preferably, a storage box is fixedly connected to the inner surface of the cover body, and plastic covers are rotatably connected to the upper surfaces of the storage boxes.

[0010] Preferably, a clamping block is fixedly connected to the upper side position of the left outer surface of the storage box, and a clamping buckle is fixedly connected to the left outer surface of the plastic cover.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Through the settings of the test box body, cover body, fixed seat, junction box, wire organizer, test wire, test clip, disassembly mechanism, insertion block, insertion rod, locking spring, limiting mechanism, limiting block, rotating rod, and card, when the test box body is being tested, open the cover body, rotate and open the junction box placed on the upper surface of the test box body, rotate the card on the rotating rod, and then the clamped test clip can be taken out. Pull out the test wire stored inside the wire organizer to conduct the test. This design can better store the test wire and also store and fix the test clip. Rotating the junction box can make the junction box fit well inside the box body. Pull out the insertion rod inside the junction box, compress the locking spring, and the insertion rod can be disengaged from the external slot of the insertion block, so that the wire organizer can be selectively disassembled;

[0013] 2. Through the settings of the screw hole, storage box, plastic cover, clamping block, and clamping buckle, the screw hole can use screws to fix the fixed seat on the test box body, and it is also convenient for disassembly with higher selectivity. Other easily lost parts can be placed inside the storage box to enhance the storage function. The clamping buckle is clamped on the clamping block to prevent the plastic cover from accidentally opening when the box body shakes during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0015] Figure 2 is the sectional structure schematic diagram of the disassembly mechanism at position 8 of the present utility model;

[0016] Figure 3 is the present utility model Figure 1 the enlarged structure schematic diagram of A in;

[0017] Figure 4 is the present utility model Figure 1 partial left three-dimensional structure schematic diagram of;

[0018] Figure 5 is the present utility model Figure 4 the enlarged structure schematic diagram of B in.

[0019] In the figure: 1. Test box body; 2. Cover body; 3. Fixed seat; 4. Junction box; 5. Wire arranging device; 6. Test wire; 7. Test clip; 8. Dismantling mechanism; 81. Insert block; 82. Insert rod; 83. Locking spring; 9. Limiting mechanism; 91. Limiting block; 92. Rotating rod; 93. Card; 10. Screw hole; 11. Storage box; 12. Plastic cover; 13. Clamping block; 14. Buckle. Specific implementation manner

[0020] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figures 1 - 3 shown, a new type of auxiliary junction box for calibrating a transformer DC resistance tester includes a test box body 1 and a cover body 2 rotatably connected to the upper surface and the rear surface of the test box body 1. A fixed seat 3 is installed at the left side position of the upper surface of the test box body 1. A junction box 4 is rotatably connected to the inner surface of the fixed seat 3. A wire arranging device 5 is arranged at the inner bottom of the junction box 4. Test wires 6 are arranged inside and outside the wire arranging device 5. One end of the test wire 6 is fixedly connected to a test clip 7. A dismantling mechanism 8 is arranged on the lower surface of the wire arranging device 5 and inside and outside the junction box 4. A limiting mechanism 9 is arranged at the inner bottom of the junction box 4 outside the test clip 7. A rubber ring is adhered to the upper surface of the junction box 4, which can prevent the junction box 4 from knocking against the test box body 1 during repeated storage. The dismantling mechanism 8 includes an insert block 81 fixedly connected to the lower surface of the wire arranging device 5, and a slot is formed on the outer surface of the insert block 81. An insert rod 82 is slidably connected to the inner surface of the junction box 4 extending to the outer surface. A locking spring 83 is arranged on the outer circular surface of the insert rod 82. A plurality of jacks are formed on the inner bottom of the junction box 4 extending to the lower surface, which are rectangular in design and can be inserted by the insert block 81. The limiting mechanism 9 includes a plurality of limiting blocks 91 fixedly connected to the inner bottom of the junction box 4. A plurality of rotating rods 92 are fixedly connected to the inner bottom of the junction box 4 near the limiting blocks 91. A card 93 is rotatably connected to the upper surface of the rotating rod 92. When testing the test box body 1, open the cover body 2, rotate and open the junction box 4 placed on the upper surface of the test box body 1, rotate the card 93 on the rotating rod 92, and then the clamped test clip 7 can be taken out. Pull out the test wire 6 stored inside the wire arranging device 5 to perform the test. Pull out the insert rod 82 inside the junction box 4, compress the locking spring 83, and the insert rod 82 can be separated from the outer slot of the insert block 81, so that the wire arranging device 5 can be selectively disassembled.

[0022] As Figure 1 、 Figure 4 and Figure 5As shown in the figure, screw holes 10 are provided on the upper surface of the test box body 1, and the fixing seat 3 is fixedly connected to the upper surface of the test box body 1 by screws. A preset hole is provided on the fixing seat 3, and the spacing is the same as that of the two screw holes 10.

[0023] Furthermore, a storage box 11 is fixedly connected to the inner surface of the cover body 2. Plastic covers 12 are rotatably connected to the upper surfaces of the storage box 11. The plastic covers 12 are made of transparent material for the taker to observe in advance.

[0024] Furthermore, a clamping block 13 is fixedly connected to the upper side position of the left outer surface of the storage box 11, and a clamping buckle 14 is fixedly connected to the left outer surface of the plastic cover 12. The clamping buckle 14 is made of glue and can undergo elastic deformation.

[0025] Working principle: When using the new auxiliary wiring box for calibrating the DC resistance tester of the transformer, first, when the test box body 1 is being tested, open the cover body 2, rotate and open the wiring box 4 placed on the upper surface of the test box body 1, rotate the card 93 on the rotating rod 92, and then the clamped test clip 7 can be taken out. Pull out the test wire 6 stored inside the wire organizer 5 to conduct the test. Pull out the insertion rod 82 inside the wiring box 4 and compress the locking spring 83, and the insertion rod 82 can be disengaged from the external slot of the insertion block 81, so that the wire organizer 5 can be selectively disassembled. The screw holes 10 can be used to fix the fixing seat 3 on the test box body 1 with screws, and it is also convenient to disassemble, with higher selectivity. Other easily lost parts can be placed inside the storage box 11 to enhance the storage function. The clamping buckle 14 is clamped on the clamping block 13 to prevent the plastic cover 12 from accidentally opening when the box body shakes during transportation. This is the working principle of the new auxiliary wiring box for calibrating the DC resistance tester of the transformer.

Claims

1. A novel auxiliary wiring box for calibrating a transformer DC resistance tester, comprising a test box body (1) and a cover body (2) rotatably connected to the upper surface and the rear surface of the test box body (1), characterized in that, A fixing base (3) is installed at the left position on the upper surface of the test box body (1). A junction box (4) is rotatably connected to the inner surface of the fixing base (3). A wire arranging device (5) is arranged at the inner bottom of the junction box (4). Test wires (6) are arranged inside and outside the wire arranging device (5). One end of the test wire (6) is fixedly connected to a test clip (7). A disassembly mechanism (8) is arranged on the lower surface of the wire arranging device (5) and inside and outside the junction box (4). A limiting mechanism (9) is arranged at the inner bottom of the junction box (4) outside the test clip (7).

2. The auxiliary wiring box for calibrating a transformer DC resistance tester according to claim 1, characterized in that, The disassembly mechanism (8) includes a plug block (81) fixedly connected to the lower surface of the wire arranging device (5). A slot is formed on the outer surface of the plug block (81). A plug rod (82) is slidably connected to the inner part of the junction box (4) extending to the outer surface. A locking spring (83) is arranged on the outer circular surface of the plug rod (82).

3. The auxiliary wiring box for calibrating a transformer DC resistance tester according to claim 1, wherein, The limiting mechanism (9) includes a plurality of limiting blocks (91) fixedly connected to the inner bottom of the junction box (4). A plurality of rotating rods (92) are fixedly connected to the inner bottom of the junction box (4) near the limiting blocks (91). A card (93) is rotatably connected to the upper surface of the rotating rod (92).

4. A novel auxiliary wiring box for calibrating a transformer DC resistance tester according to claim 1, characterized in that, A screw hole (10) is formed on the upper surface of the test box body (1). The fixing base (3) is fixedly connected to the upper surface of the test box body (1) by screws.

5. The auxiliary wiring box for calibrating a transformer DC resistance tester according to claim 1, characterized in that, A storage box (11) is fixedly connected to the inner surface of the cover body (2). Plastic covers (12) are rotatably connected to the upper surfaces of the storage box (11).

6. The auxiliary wiring box for calibrating a transformer DC resistance tester according to claim 5, characterized in that, A clamping block (13) is fixedly connected to the upper side position on the left outer surface of the storage box (11). A buckle (14) is fixedly connected to the left outer surface of the plastic cover (12).

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