CN2207630Y

CN2207630Y - Rotating emergency lamp bulb and socket

Info

Publication number: CN2207630Y
Application number: CN 94246369
Authority: CN
Inventors: 王启宏
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-28
Filing date: 1994-12-28
Publication date: 1995-09-13
Anticipated expiration: 2004-12-28

Abstract

The utility model relates to a rotating emergency lamp bulb and socket. The utility model is characterized in that the lamp bulb is composed of a glass bulb H whose inner side is provided with two groups of filaments and a metal cover C which is sheathed on the concave part of the upper end of the glass bulb; a circular hook D is arranged on the metal cover C which is convenient for inserting a lamp socket I; the metal cover C is inserted with a circle-shaped glass insulation plate E; the upper side of the glass insulation plate E is provided with a shallow circular hook F to make that the sphere contact O slides on the lamp socket; four metal contacts A1, A2, B1, B2 which are corresponding insulated and insulated with the metal cover C are uniformly arrayed on the shallow circular hook F; the metal contacts are respectively two groups of lead terminals of filaments A and B; the lamp socket I is a U-shaped body with a groove M; two power line terminals J < 2 > pass through the U-shaped body of the lamp socket; the lower end of the U-shaped body of the lamp socket is a sphere contact O.

Description

Rotating emergency lamp bulb and socket

The utility model relates to ligthing paraphernalia, particularly a kind of rotary emergent bulb and lamp socket with two groups of filaments.

General incandescent lamp has only one group of filament, and therefore when being blown because of this group filament of certain reason, bulb just can not continue to use again, the bulb that must more renew, and in the emergent occasion of needs, this is very inconvenient.

The purpose of this utility model just provides a kind of rotary emergent bulb and lamp socket with two groups of filaments, and it has overcome the above-mentioned deficiency of prior art.

The purpose of this utility model is achieved in that provides a kind of rotary emergent bulb and lamp socket, bulb is made up of glass envelope H that two groups of filaments are housed within it and the metallic sheath C that is enclosed within glass envelope upper end recess, one annular groove D is arranged on C, be convenient to insert lamp socket I, on C, be embedded with round shape glass insulation plate E, one shallow annular groove F is arranged on E, slide for the circle contact O on the lamp socket, evenly distributed 4 insulation relatively on F, and the hard contact A1 that also insulate with C, A2 and B1, B2, they are respectively the lead terminals of two groups of filament A and B, lamp socket I is the U-shaped body of trough of belt M, M supplies anxious bulb insertion and rotates usefulness, two power-line terminal J within it ₂Pass the U-shaped body of lamp socket, its lower end is circle contact O, and this circle contact protrudes in the lower plane of U-shaped body, is convenient to slide between bulb F.Above-mentioned bulb has only one group of filament to be powered when work, when this group filament blow, only need rotate bulb simply, and the contact of another group filament is contacted with the power-line terminal of lamp socket, just can continue illumination.

It is extremely convenient that emergent bulb of the present utility model uses in the emergent occasion of needs, since the existence of two groups of filaments, two common bulbs in an emergent bulb top, the trouble of nothing replacing, easy to use.

Below describe the utility model in detail referring to accompanying drawing.

Fig. 1 is the profile of emergent bulb,

The cutaway view of the metallic sheath of Fig. 2 presentation graphs 1 emergent bulb and the interlocking of glass insulation plate,

Fig. 3 is the profile of lamp socket,

Fig. 4 is the cut-away view of expression lamp socket internal structure,

Fig. 5 represents the engagement state of bulb and lamp socket.

At first referring to Fig. 1 and Fig. 2, bulb is made up of glass envelope H that two groups of filament A and B are housed within it and the metallic sheath C that is enclosed within glass envelope H upper end recess, R is the cylindrical glass entity, plays the effect of the lead-in wire of anchored filament, and lead-in wire recurs and C is fixed on the effect of H upper end recess.J ₂Use the duct for vacuumizing, S set hole when vacuumizing.Fig. 2 represents the interlocking of metallic sheath C and glass insulation plate, one annular groove D is arranged on C, be convenient to insert lamp socket I(and see Fig. 3,4), E is the round shape glass insulation plate that is embedded on the C, a shallow annular groove F is arranged on E, see Fig. 3,4 for the circle contact O(on the lamp socket) slide evenly distributed 4 insulation and hard contact A1, the A2 and B1, the B2 that also insulate with C relatively on F.

The structure of lamp socket is described referring to Fig. 3 and Fig. 4.As shown in Figure 3, lamp socket I is the U-shaped body of trough of belt M, and M supplies anxious bulb insertion and rotates usefulness, two power-line terminal J within it ₂(see figure 4) is passed the U-shaped body of lamp socket, and its lower end is circle contact O, and this circle contact O protrudes in the lower plane of U-shaped body, is convenient to slide between bulb F.N is a lampholder cover.The internal structure of Fig. 3 presentation graphs 2 lamp sockets, J ₂Be binding post, connect external power supply, K is J ₂Tighten up a screw fixed power source line, J ₂The J in Q can be moved in the middle and lower part in lamp socket hole Q ₂Mid portion be with wire spring P, be used for stablizing J ₂, L is a spiral goove, is the fixed position of lampholder cover N.

Referring to Fig. 5 the engagement relationship between above-mentioned lamp socket and the bulb and the work of emergency light are described.When emergent bulb inserted the groove M of lamp socket, because the effect of power, adding O was the circle contact, J ₂Begin to move upward.Along with the carrying out that inserts, J ₂The contact O of lower end falls in the emergent bulb annular groove F.At this moment, the rotation bulb is connected O and contact A 1, A2 or B1, B2, and then, the opening power lamp is just bright, has only one group of filament bright.In case of long duration, at this moment the excessive one group of filament that blows frequent use of electric current, can rotate bulb immediately, makes O corresponding good with other one group of contact, bulb is just bright again.

Claims

1, a kind of rotary emergent bulb and lamp socket, it is characterized in that bulb is made up of glass envelope H that two groups of filaments are housed and the metallic sheath C that is enclosed within glass envelope upper end recess within it, one annular groove D is arranged on C, be convenient to insert lamp socket I, on C, be embedded with round shape glass insulation plate E, one shallow annular groove F is arranged on E, slide for the circle contact O on the lamp socket, evenly distributed 4 insulation relatively on F, and the hard contact A1 that also insulate with C, A2 and B1, B2, they are respectively the lead terminals of two groups of filament A and B, lamp socket I is the U-shaped body of trough of belt M, M supplies anxious bulb insertion and rotates usefulness, two power-line terminal J within it ₂Pass the U-shaped body of lamp socket, its lower end is circle contact O, and this circle contact protrudes in the lower plane of U-shaped body, is convenient to slide between bulb F.