Insertion piece type wiring copper terminal structure of special LED double-wire bulb for railway signals

Abstract

The utility model discloses an insert type wiring copper terminal structure of a special LED double-wire bulb for railway signals, which relates to the field of railway signal lamps and comprises an installation insert, a bulb body and a lamp holder, pressing plates are arranged on two sides of the lamp holder, the pressing plates extend upwards and then are bent inwards, so that the installation insert is installed between the two pressing plates in a clamping groove mode, and the bulb body is connected with the lamp holder. The press plate presses the installation insertion piece tightly, a conjoined support is integrally arranged in the center of the installation insertion piece, the tops of the two sides of the conjoined support are in an arc shape and are fixed to the bulb body, a lamp cap of the bulb body penetrates through a bulb installation hole formed in the installation insertion piece and then stretches into the lamp holder, and an elastic ejector rod is arranged in the lamp holder; the positioning holes are formed in the mounting insertion pieces, so that the mounting insertion pieces and the lamp holder are positioned. The LED double-wire bulb eliminates the potential safety hazard of frequent and accidental poor contact of the elastic contact pieces and the return line insertion pieces of the main wire and the auxiliary wire on the lower portion of an original lamp holder, and the safety and stability of signal lighting of the LED double-wire bulb special for railway signals are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of railway signal lights, and particularly relates to a blade-type wiring copper terminal structure for a special railway signal LED double-filament bulb. Background Art

[0002] At present, both the ordinary double-filament bulbs and LED double-filament bulbs special for railway signals are powered on and lit by wiring through the main, auxiliary, and return three wiring copper terminals on the original railway signal lamp socket. Then, the main filament terminal of the wiring copper terminal is in elastic contact with the main filament convex head under the lamp head of the original double-filament bulb through the main filament contact spring piece, and is also in elastic contact with the auxiliary filament convex head under the lamp head of the original double-filament bulb through the auxiliary filament contact spring piece, and then contacts the periphery of the lamp head of the original double-filament bulb through the pressing piece, so as to form the lighting circuit of the signal bulb in the railway signal mechanism.

[0003] In the special railway signal lamp socket with the unified standard of the above-mentioned China Railway Corporation, the structure of relying on the elastic pressure of the contact spring piece for the main and auxiliary filaments is designed according to the weight of the original ordinary double-filament bulb. For decades, it has been operating safely and reliably. With the progress of technology, in the past ten years, many LED double-filament bulbs with long service life but still imitating the elastic contact structure of the lamp head spring piece of the original ordinary double-filament bulb have emerged on the market. However, the weight of the LED double-filament bulb is 5 to 10 times that of the original ordinary double-filament bulb, and the possible impacts brought about by this change have not been taken seriously by everyone. Due to the large weight of such an LED double-filament bulb and the back-and-forth vibration of the railway train, the main and auxiliary filament contact spring pieces are often deformed on-site, and even the main and auxiliary filament contact spring pieces may be directly broken. Therefore, users who have switched to LED double-filament bulbs on-site often report the instability of LED double-filament bulbs: usually it is okay, but there will always be occasional filament breakage alarms or even occasional direct lamp extinguishing; it is often reported that the LED double-filament bulbs with filament breakage alarms are checked and found to be okay after being replaced, but they are normal again after being reinstalled and used, and the cause of the failure cannot be found. Therefore, the above-mentioned frequent occasional failures are an important reason why the new technology of LED double-filament bulbs has not been able to be widely promoted so far. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and provide a blade-type wiring copper terminal structure for a special railway signal LED double-filament bulb, eliminating the potential safety hazard of frequent occasional poor contact of the elastic contact pieces of the main and auxiliary filaments and the return wire blade at the lower part of the original lamp head, and greatly improving the safety and stability of the signal lighting of the special railway signal LED double-filament bulb.

[0005] The purpose of the utility model is achieved through the following technical solutions: the plug-in type wiring copper terminal structure of the special LED double-filament bulb for railway signals includes an installation plug, a bulb body and a lamp holder, and pressure plates are provided on both sides of the lamp holder. The pressure plates extend upward and then bend inward, so that the installation plug is slot-type installed between the two pressure plates, and the pressure plates press the installation plug tightly. A joint bracket is integrally provided at the center of the installation plug, and the tops of the two sides of the joint bracket are arc-shaped and fixed to the bulb body. The lamp head of the bulb body passes through the bulb installation hole opened on the installation plug and then extends into the lamp holder. An elastic top rod is provided in the lamp holder, which is used to pass through the positioning hole opened on the installation plug to position the installation plug and the lamp holder.

[0006] As a further technical solution, a bulb connection copper terminal is provided on the bulb body for external power supply, so that the main wire contact and the auxiliary wire contact provided at the bottom of the lamp holder are vacated.

[0007] As a further technical solution, a fixing screw hole is provided on the conjoined bracket for fixing the bulb body.

[0008] The beneficial effects of the utility model are:

[0009] 1. The installation structure of the utility model can be universally compatible with all traditional standard railway signal lamp holders, and avoids the troublesome focus adjustment when replacing LED double-filament bulbs, so it is very convenient to install and replace LED double-filament bulbs; the main fault link of traditional signal lighting of main and auxiliary wire elastic springs in contact transfer is eliminated, thereby greatly improving the safety and stability of LED double-filament bulb lighting;

[0010] 2. The lighting lead originally connected to the copper terminal of the lamp holder is directly transferred to the copper terminal of the bulb connection of the special LED double-filament bulb, thus eliminating the main fault link of signal lighting in the traditional main and auxiliary filament elastic reed contact transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0012] Figure 2 It is a side structural schematic diagram of the utility model.

[0013] Explanation of the reference numerals: mounting plug 1, bulb wiring copper terminal 2, bulb body 3, joint bracket 4, fixing screw hole 5, pressing plate 6, bulb mounting hole 7, positioning hole 8, elastic push rod 9, lamp holder 10, lamp cap 11, main wire contact 12, auxiliary wire contact 13, lamp holder wiring copper terminal 14. DETAILED DESCRIPTION

[0014] The utility model will be described in detail below with reference to the accompanying drawings:

[0015] Embodiment: As shown in the attached Figure 1 , 2 figure, the blade - type wiring copper terminal structure of this special LED dual - filament bulb for railway signals includes an installation blade 1, a bulb wiring copper terminal 2, a bulb body 3, a combined support 4, a fixing screw hole 5, a pressing plate 6, a bulb installation hole 7, a positioning hole 8, an elastic ejector rod 9, a lamp socket 10, a lamp head 11, a main - filament contact 12, a secondary - filament contact 13, and a lamp - socket wiring copper terminal 14.

[0016] Refer to the attached Figure 1 figure. On both top sides of the lamp socket 10, there is a pressing plate 6. After the pressing plate 6 extends upward and then bends inward, the installation blade 1 is installed in a slot - type manner between the two pressing plates 6, and the installation blade 1 is pressed tightly by the pressing plate 6. At the same time, a combined support 4 is integrally arranged at the center of the installation blade 1. The combined support 4 is perpendicular to the installation blade 1. The top parts on both sides of the combined support 4 are arc - shaped. After the arc - shaped parts are attached to the bulb body 3, they are fixedly connected to the bulb body 3 through the fixing screw holes 5 opened on the combined support 4. The lamp head 11 of the bulb body 3 penetrates through the bulb installation hole 7 opened on the installation blade 1 and then extends downward into the lamp socket 10. An elastic ejector rod 9 is arranged inside the lamp socket 10. Correspondingly, a positioning hole 8 is opened on the installation blade 1, and the elastic ejector rod 9 can penetrate through the positioning hole 8 to position the installation blade 1 and the lamp socket 10.

[0017] As Figure 1 , 2 shown in the figure, a bulb wiring copper terminal 2 is arranged on the bulb body 3. Through this bulb wiring copper terminal 2, it is directly externally connected to the power supply, making the main - filament contact 12 and the secondary - filament contact 13 at the bottom of the lamp head 11 vacated. In addition, the lamp - socket wiring copper terminal 14 originally arranged on the lamp socket 10 is no longer wired, thus eliminating the main fault link of the signal lighting where the traditional main and secondary - filament elastic reed contacts transfer.

[0018] The working process of the present utility model:

[0019] The installation blade 1 is fixedly connected and fixed to the bulb body 3 through the integrated installation - blade combined support 4 and the fixing screw holes 5 in a threaded connection, thus making the installation blade 1 and the bulb body 3 into a whole. The installation blade 1 is firmly pressed and fixed by the pressing plate 6 in the lamp socket 10, and is further positioned and fixed by the positioning hole 8 on the installation blade 1 and the elastic ejector rod 9 in the lamp socket 10. This installation structure can be universally matched with all traditional standard railway signal lamp sockets, and avoids the relatively troublesome focusing adjustment when replacing the LED dual - filament bulb. Therefore, it is very convenient to install and replace the LED dual - filament bulb. The innovation of this installation structure eliminates the main fault link of the signal lighting where the traditional main and secondary - filament elastic reed contacts transfer, thus greatly improving the safety and stability of the lighting of the LED dual - filament bulb 3.

[0020] It is understandable that, for those skilled in the art, equivalent substitutions or changes to the technical solution and inventive concept of the present utility model should fall within the protection scope of the appended claims of the present utility model.

Claims

1. An insertion-type wiring copper terminal structure for a special LED double-filament bulb for railway signals, characterized in that: The utility model comprises a mounting plug (1), a bulb body (3) and a lamp holder (10), wherein both sides of the lamp holder (10) are provided with a pressing plate (6), the pressing plate (6) extends upward and then bends inward, so that the mounting plug (1) is slot-mounted between the two pressing plates (6), and the pressing plate (6) presses the mounting plug (1), a joint bracket (4) is integrally arranged at the center of the mounting plug (1), the tops of both sides of the joint bracket (4) are arc-shaped and fixed to the bulb body (3), the lamp cap (11) of the bulb body (3) penetrates through the bulb mounting hole (7) provided on the mounting plug (1) and then extends into the lamp holder (10), and an elastic top rod (9) is arranged in the lamp holder (10) for penetrating through the positioning hole (8) provided on the mounting plug (1) so that the mounting plug (1) and the lamp holder (10) are positioned.

2. The insert - type wiring copper terminal structure of the special LED double - filament bulb for railway signals according to claim 1, wherein: The bulb body (3) is provided with a bulb connection copper terminal (2) for external power supply, so that the main wire contact (12) and the auxiliary wire contact (13) arranged at the bottom of the lamp holder (11) are vacant.

3. The blade-type wiring copper terminal structure of the special LED double-filament bulb for railway signals according to claim 1, wherein: The combined bracket (4) is provided with a fixing screw hole (5) for fixing the bulb body (3).

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