CN200953385Y - Mine flameproof binding post - Google Patents

Abstract

The utility model discloses a mine flameproof terminal post which has the convenient installation and use, the impact resistance and the simple manufacturing process, and can more effectively ensure the flameproof gap; the utility model is characterized by comprising a BSPT hexagon, an engineering plastic insulation and an insulating sheath; wherein the BSPT hexagon is wrapped by the engineering plastic insulation, the two ends of the BSPT hexagon are provided with a screw thread, the insulating sheath is sleeved in the BSPT hexagon and contacts with the engineering plastic insulation and the shell through the compression action of a copper nut arranged on the BSPT hexagon and matched with the BSPT hexagon; the utility model isn't easy to generate the crack and brittle fracture and has the good impact resistance under various adverse conditions, and thereby has the comparatively reliable advantages.

Description

Mine Explosion-proof Terminal

Technical field

The utility model designs a kind of flame proof termination, relates in particular to a kind of Mine Explosion-proof Terminal.

Background technology

Flameproof mining transformer is the transformer that is used under the coal mine, under the colliery because the gas that grows on trees, therefore the equipment of requirement use will have the function of flame proof, the requirement of these flame proofs is embodied on a lot of parts of transformer, needs between binding post and the housing to guarantee that the flame proof gap is exactly wherein one.Normal employing was integrated poured method in the past, just need with several binding posts and fixed cover with mould fix the back in mould casting epoxy resin, become as a whole, the shortcoming of this kind method is to ftracture easily under the external force effect, quality often is difficult to guarantee, can damage explosion suppresion surface in the processing, the processing technology complexity is awkward.

Summary of the invention

It is a kind of easy to install and use, shock-resistant that the utility model provides, and manufacturing process is simple, can more effectively guarantee the Mine Explosion-proof Terminal in flame proof gap.

The utility model adopts following technical scheme:

A kind of Mine Explosion-proof Terminal, comprise silk, engineering plastics insulator and insulating case, silk is wrapped up by the engineering plastics insulator, two ends to silk are provided with screw thread, insulating case is enclosed within on the silk, and by being located at contacting with engineering plastics insulator and housing with the compression of the copper nut that silk is matched on the silk.

The utility model obtains following technique effect:

1. the utility model adopts better plasticity good engineering plastics particularly of comprehensive mechanical property, and in use, not easy to crack under various harsh conditions, shock resistance is good, is not easy to take place brittle fracture, thereby reliable.

2. adopt moulding good engineering plastics, make when the utility model flame proof binding post is fixed in housing, can be fastening with copper nut, do not worry that engineering plastics are cracked in the fastening process, this shows that the utility model is convenient to install, fix.

3. when making, can adopt the method manufacturing of injection moulding, be shaped than being easier to, rate of finished products is higher; In addition, during manufacturing, can manufacture single binding post easily, thus easy to process, it is also convenient to use, and cost is lower.

4. the utility model binding post is easy for installation, and the technology of processing is also fairly simple, can not damage explosion suppresion surface, and the more effective flame proof gap that guaranteed is for safety provides better guarantee.

Description of drawings

Fig. 1 is the binding post front view.

Fig. 2 is the installation diagram of binding post and fixed cover.

Fig. 3 is a flame-proof mine transformer general assembly drawing.

Fig. 4 is that the K of Fig. 3 is to view.

Fig. 5 is the cutaway view of the F-F direction of Fig. 4.

Embodiment

Embodiment

A kind of Mine Explosion-proof Terminal, comprise silk 5, engineering plastics insulator 4 and insulating case 3, silk 5 is wrapped up by engineering plastics insulator 4, two ends to silk 5 are provided with screw thread, insulating case 3 is enclosed within on the silk 5, and by being located at contacting with engineering plastics insulator 4 and housing 6 with compression on the silk 5, thereby be fixed on the housing 6 copper nut 2 of silk 5 two ends threads engaged.

To be in the same place to silk 1 and insulator 2 usefulness die castings as shown in Figure 1, so just form an insulated column; On insulated column 4, put insulating case 3 as shown in Figure 2, then at screwed in silk two copper nut 2 and copper washer 1.The inwall of fixed cover 1 is tight more with regard to what contact among the sidewall of the insulator among tight more then Fig. 1 that nut is twisted and Fig. 3, has effectively guaranteed the flame proof gap.

Claims (3)

1. Mine Explosion-proof Terminal, it is characterized in that comprising to silk (5), engineering plastics insulator (4) and insulating case (3), silk (5) is wrapped up by engineering plastics insulator (4), two ends to silk (5) are provided with screw thread, insulating case (3) is enclosed within on the silk (5), and by being located at silk (5) is upward contacted with engineering plastics insulator (4) and housing (6) with the compression of the copper nut that silk is matched (2).

2. Mine Explosion-proof Terminal according to claim 1 is characterized in that being provided with copper washer (1) between copper nut (2) and insulating case (3).

3. Mine Explosion-proof Terminal according to claim 1 is characterized in that the middle part of silk (5) is provided with groove, and engineering plastics insulator (4) embeds groove.

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