CN2191201Y

CN2191201Y - Lifting electromagnet terminal box

Info

Publication number: CN2191201Y
Application number: CN 94228408
Authority: CN
Inventors: 潘大鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-23
Filing date: 1994-04-23
Publication date: 1995-03-08
Anticipated expiration: 2004-04-23

Abstract

The utility model relates to a lifting electromagnet terminal box which is divided into a wire leading-out chamber and a wiring chamber by a partition board, wherein a wiring bolt passes through the partition board, and both end heads are respectively positioned in the wire leading-out chamber and the wiring chamber. The terminal position of the wiring bolt in the wiring chamber is provided with a cable connector which is composed of a plug, a wiring bolt end head, a cable core wire tightening screw and a screwing sleeve. The utility model has advantage that the electromagnet terminal box has superior, comprehensive and reliable functions.

Description

Lifting electromagnet terminal box

The utility model relates to a kind of lifting electromagnet connection box.

General electromagnet connection box is many to be made of outlet chamber, wiring chamber two parts, and a dividing plate is arranged between two Room, and two connection bolts pass dividing plate, and two ends places outlet chamber and wiring indoor respectively.The connection bolt that has only simple structure in these connection boxes, the independent cable connector of outside connection box, still needing, and cable connector is considered waterproof and tension because of needs and is required to make its structure to become very complicated, heavy; In addition, the cable fixed card is independent device, and this makes troubles to the operation that cable is changed again; Also often have because of no overvoltage protecting device in the connection box makes magnet coil to disconnect moment suddenly, over-voltage breakdown (electromagnet casing) insulation over the ground often takes place at cable; Because the bolt end subsystem in the outlet chamber is connected with two pig-tail wires of magnet coil, and according to electromagnet in-to-in sealing requirements, encapsulation process must be carried out in outlet chamber for connection box: will fill the insulated enclosure filler around connection bolt two side perforations that pass partition part, add cover insulated enclosure pad, with the outlet interior space with the epoxy resin embedding after, again its upper cover plate is welded.But too high temperature can be directly passed to leakproofing material around the connection bolt by dividing plate in the welding process, and the result makes its material impaired and the out of reach seal request causes ventilative phenomenon of leaking to happen occasionally.

The purpose of this utility model is: overcome the deficiency of prior art, provide a kind of performance more reliable, superior lifting electromagnet connection box.

The utility model has following basic scheme: same as the prior art, it also is made up of outlet chamber 18 and wiring chamber 19, has 3, two connection bolts 2 of a dividing plate to pass dividing plate 3 between two Room, and two ends places respectively in outlet chamber 18 and the wiring chamber 19.Different is: a cable connector is established in the end of the connection bolt 2 in wiring chamber 19: it holds out against screw 12 by plug 10, the termination of connection bolt 2, cable conductor and screws cover 9 forms, the taper hole of opening in the front end conical head of plug 10 and bolt 2 terminations can be pegged graft and be cooperated, have the spliced eye of cable the end of a thread in the rear end of plug 10, have the tapped bore that matches with screw 12 on the grafting hole wall; Screwing on cover 9 inwalls has the female thread structure that can match with the outside thread on bolt 2 terminations, and it can be socketed on the plug 10, reciprocatingly slides vertically between plug 10 lip-deep spacing preiections and screw 12.

The utility model also can be realized like this: on above-mentioned two kinds of scheme bases, the cover plate 11 of design wiring chamber 19 is one with the vertical pressing plate 17 that the cable fixing clamp/clip that inserts can be lived.

When realizing the utility model, also can in wiring chamber 19, establish an overvoltage protection device 16, join with connection bolt 2 and electromagnet casing; Have a heat insulation groove on the surface of wiring chamber 19 1 sides of the dividing plate 3 around two connection bolts 2 are bored a hole.

The utility model has the advantages that: make electromagnet connection box function more superior, comprehensive, reliable.

Fig. 1 is the utility model example structure master pseudosection.

Fig. 2 is the utility model example structure top plan view.

Fig. 3 is the utility model example structure right elevation.

Below in conjunction with drawings and Examples the utility model is done further narration:

As shown in Figure 1, 2; in this example the utility model by dividing plate 3, insulating tube 4, gland packing 5, insulated enclosure pad 6, packing ring 7, nut 8 between the cover plate 1 of outlet chamber 18, connection bolt 2, two Room, screw check screw and accessory 13,14,15 that cover 9, plug 10, the cover plate 11 of wiring chamber 19, cable conductor hold out against screw 12, cover plate 11; overvoltage protection device 16, vertical pressing plate 17 is formed.

In this example, the material of state-of-the art high temperature resistant (600 ℃) is adopted in the sealing of the connection bolt 2 in the one side outlet chamber 18; On the other hand, on the dividing plate 3 around 2 perforation of two bolts, process rectangular recess, this groove has been a heat-blocking action, can reduce to bottom line near the heat conducting path of leakproofing material of wiring chamber one side leading to bolt 2 perforation place, like this, can guarantee seal member material properties can be not soldered high temperature during cover plate 1 damage.

The indoor cable connector of wiring is work like this in this example: (1) will screw cover 9 and be set on the plug 10, and plug 10 lip-deep spacing preiections screw cover 9 from its front end landing with restriction; (2) the end of a thread of cable 20 is inserted in the plug wire hole of plug 10 rear ends, and tighten the screw and 12 withstand cable core the end of a thread.12 pairs on screw screwed cover 9 and slided backward and play position-limiting action this moment; (3) will screw cover 9 negative thread and match with the outside thread of bolt 2 terminations, spiral tightens, this moment plug 10 front ends cone-shaped plug also thereupon gradually in the conical socket in inserting bolt 2 terminations, overlap 9 and tighten fully until screwing.Realized that so just complete failure-free is electrically connected.Because this connection is carried out in connection box, thus need not to consider waterproof and tension requirement, so its structural volume just can be small and exquisite many.

Vertical pressing plate 17 is an one with cover plate 11, after having connected cable, covers cover plate 11 like this, and when check screw 13 was tightened, vertical pressing plate 17 had promptly been finished the function that cable 20 is fixedly blocked simultaneously.

In wiring chamber 19, load onto overvoltage protection device (as nonlinear resistance), so just can when cable 20 fracture suddenly, the over voltage of magnet coil be discharged over the ground, with the unlikely damage of protection coil ground insulation.

By as can be known above-mentioned, the connection box that provides in this example does not possess connection function merely, but also can realize cable connection, the fixing three kinds of functions of overvoltage protection that reach of cable.

Claims

1, the lifting electromagnet connection box, form by outlet chamber (18) and wiring chamber (19), one dividing plate (3) is arranged between two Room, two connection bolts (2) pass dividing plate (3), two ends places respectively and occurs in chamber (18) and wiring chamber (19), a cable connector is established in the end that it is characterized in that the connection bolt (2) in wiring chamber (19): by plug (10), the termination of connection bolt (2), cable conductor holds out against screw (12) and screws cover (9) to be formed, the taper hole of opening in the front end conical head of plug (10) and bolt (2) termination can be pegged graft and be cooperated, have the spliced eye of cable conductor in the back segment of connection-peg (10), have the tapped bore that matches with screw (12) on the grafting hole wall, screw the female thread structure that can match with the outside thread on bolt (2) termination is arranged on cover (9) inwall, it can be socketed on the plug (10), reciprocatingly slides vertically between lip-deep spacing preiection of plug (10) and screw (12).

2, connection box according to claim 1 is characterized in that: the cover plate (11) of wiring chamber (19) is one with the vertical pressing plate (17) that the cable fixing clamp/clip that inserts can be lived.

3, connection box according to claim 1 and 2 is characterized in that: be provided with an overvoltage protection device (16) in wiring chamber (19), join with connection bolt (2) and electromagnet casing.

4, connection box according to claim 1 and 2 is characterized in that: have a heat insulation groove on the surface of wiring chamber (19) one sides of the dividing plate (3) around two bolts (2) are bored a hole.