JPH0125442Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to underwater lighting equipment used under high water pressure, especially the packing that maintains watertightness between the halogen lamp and the equipment body, and the part that prevents overheating of the socket part. The present invention relates to an improved underwater lamp having a cooling section.

(Prior Art) In an underwater light such as a fishing light or an underwater work light, a waterproof seal structure is applied to the light body 1 at the attachment portions of the power cable and the lamp through elastic packing. For example, many proposals have been made regarding underwater lamps using ordinary lamps whose neck portions have gently curved surfaces. For example, Utility Model Publication No. 51-1265, and Utility Model Publication No. 54-4863 using a halogen lamp.
There are various publications such as No. 54-39915. In recent years, underwater lighting equipment using halogen lamps has become popular.

(Problem to be solved by the invention) The above-mentioned halogen lamp underwater lamp has the drawback that the packing that maintains the watertight state on the lamp side is easily damaged due to high heat, and overheating can cause significant damage to the waterproof structure of the relevant part. have.

This invention uses packing to improve watertightness, and also forms a cooling section by providing a water channel that flows along the lamp body on the outside of the packing part.In addition, it is easy to operate such as sinking and lifting, and is compact. The purpose is to provide a durable halogen lamp underwater light at a low price.

To explain the drawings in detail below, Fig. 1 is a plan view, Fig. 2 is a vertical sectional view taken along the - line in Fig. 1, and 1 is a lamp body with a socket part 3 fixed in the center hole 2. and connect the power cable 5 from the top opening 4.
is inserted and connected to the socket part 3, waterproofed by the packing 6 and the fastening part 7, and fixed to the upper end of the lamp body 1. Further, the lower end of the lamp body 1 forms a large-diameter lower end annular flange 12, and a halogen lamp 9 is inserted into the socket part 3 through an opening 8 in the center and attached, and the annular flange is attached to the neck part 9a of the halogen lamp 9. It is installed in the center hole 8 of 12 after waterproofing with packing 10 and fastening parts 11. Packing 10 attached to opening 8
is formed with an outward taper 10a on the outer periphery of the outer surface, and an inward taper 11b is formed on the inner circumferential surface of the upper end opening 11a of the fastening component 11, and is joined to the outward taper 10a of the packing 10. The tightening is gradually strengthened, and the inward taper 11b of the lower tightening part 11 gradually slides upward on the outward taper 10a surface of the packing 10, pressing the packing 10 toward the center, and the halogen lamp 9 It is in close contact with the neck portion 9a to keep this part airtight. Reference numeral 11c denotes a fixing part of the fastening part 11, which is brought into contact with the lower surface of the annular flange 12 formed integrally on the outer periphery of the lower end of the lamp body 1, and is attached to the thick wall part of the annular flange 12 by bolts 15 as shown in FIG. Tighten. Reference numeral 13 denotes an annular gap between the tightening part 11 and the neck part 9a of the halogen lamp 9, which is formed by making the inner diameter of the tightening part 11 larger than the outer circumferential diameter of the neck part 9a of the halogen lamp 9, and the diameter difference between the two. do. As a result, the packing 10 is surrounded by the fastening part 11 within the opening 8 of the annular flange 12 at the lower end of the lamp body 1, and the packing 10 is surrounded by the annular flange 12 of the lamp body 1 on the outside. 1
3 is provided with a chamber 14 on its inner circumferential surface as shown in FIG. Furthermore, a communication hole 14c is provided in the upper surface of the cavity 14 of the annular flange 12, and a lower end opening 18 of the passage 18 formed between the lamp body 1 and the weight body 16
When the lamp is submerged in water, the empty chambers 14 serve as flow channels to prevent overheating of the packing 10 and the neck portion 9a of the halogen lamp 9. It serves as a passageway for water, etc., and can accelerate the sinking, making it easy to lift. The cavity 14 provided on the inner periphery of the annular flange 12 forms an uneven cavity 14b with a corrugated cross section as shown in FIG. Open. Said wavy uneven space 14
Even if b is wide open in the lower opening 8 of the lamp body 1, the wide space at the center is closed by fitting the fitting cylindrical part 11a of the lower fastening part 11, and the transparent part of the fitting cylindrical part 11a is closed. It communicates with the annular gap 13 only through the hole 14a. The recesses 14b can be formed as divided composite-shaped cavities 14b glued at regular intervals on the outer circumferential surface of the lower tightening part 11, and furthermore, in place of the communication holes 14a of the lower tightening part 11, cutout recesses can be formed in the inner circumferential surface. Grooves can also be formed. Vacant room 14 mentioned above
The packing 10 can be cooled close to the outside of the packing 10 by the (flow channel).

Next, reference numeral 16 denotes an optional weight body, which has a cylindrical shape and is fitted onto the outer circumferential surface of the lamp body 1. Its lower end is brought into contact with the upper surface of the annular flange 12 of the lamp body 1, and the abutted lower end surface is shaped into an internal wavy shape. The uneven space 14b is removably fixed to the vault 17 by utilizing a thick part located between the next wavy uneven space 14b. The inner diameter of the weight body 16 is made larger than the outer diameter of the lamp body 1, and an annular gap 18 is formed between the two at both upper and lower ends. It is fitted into the opening of the hole 14c to communicate with the cavity 14. In the drawing, 20 is a weight body 16
a protrusion protruding from the inner circumferential surface of the annular gap 18;
This protrusion 20 may be provided on the lamp body 1. 21 is a protective frame for the halogen lamp 9, and 22 is a mounting plate for a net, string, etc. for hanging the lamp body 1.

(Function/Effect) Since the present invention is constructed as described above, when this underwater light is submerged in the sea (water), seawater or water flows into the flow channel and damages the parts near it on the outside of the packing. It is possible to cool the packing 10 and prevent it from heating up, and also to prevent seawater from flowing into the flow channel.
Water, etc. does not stagnate and is constantly circulated to effectively prevent heating.
Since a flow channel 18 having both upper and lower ends open is formed inside the lamp body 6, overheating of the socket within the lamp body can be prevented. Since the incoming seawater (water) flows along the axial direction, the submerged lamp can be properly stabilized in its submerged position.Furthermore, the weight body can be removed from the lamp body, so it can be selected depending on the usage condition. I can do it. In addition, the packing of the socket part has an outwardly inclined surface, and the lower tightening part has an inwardly inclined surface.
By bringing these two into contact and strengthening the fastening of the lower end fixing component, there are many advantages such as airtightness of this part.

[Brief explanation of drawings]

Figure 1 is a plan view, Figure 2 is a longitudinal cross-sectional view, and Figure 3 is a longitudinal sectional view.
The figure shows a cross-sectional view taken along the - line in FIG. 2. 1... Lamp body, 2... Annular flange, 3...
Socket part, 6, 10... Packing, 7, 11
...Tightening part, 13...Annular gap between the fastening part and the halogen lamp, 14...Vacancy, 16...Weight body, 18...Annular gap between the lamp body and the weight body, 19 ...Lower end opening.

Claims (1)

[Scope of claim for utility model registration] (1) Large diameter annular flange 12 at the lower end of the lamp body 1
are formed into the same body, and a cylindrical weight body 16 is provided on the outer peripheral surface.
The halogen lamp 9 is inserted into the internal socket part 3 and attached to the lower end opening 8 of the large-diameter annular flange 12 of the lamp body 1, and the halogen lamp 9 is located at the neck part 9a of the lamp body 1 to maintain airtightness. Outward inclined surface 1 to the packing 10 to be installed
0a, and an inwardly inclined surface 11b is formed at the upper end of the lower end fastening component 11, and this inwardly inclined surface 11b is connected to the outwardly inclined surface 1 of the packing 10.
0a, and by tightening the lower clamping part 11, the packing 10 is strongly pressed against the halogen lamp 9.
A hollow chamber 14 is formed inside the annular flange 12 of the lamp body 1, and the outer periphery of the lower tightening part 11 and the annular flange 12 Communication holes 14a and 1 are provided on the upper surface to communicate with the empty chamber 14, respectively.
4c to allow seawater, water, etc. to flow, thereby preventing overheating in the vicinity of the packing 10. (2) A cylindrical weight body 16 is provided on the outer peripheral surface of the lamp body 1 with an annular gap 18 between the outer peripheral surface of the lamp main body 1 and the upper end is open, and the lower end is in contact with the peripheral surface of the annular flange 12. 2. The underwater lamp according to claim 1, wherein a window hole 19 is provided with a required gap so that seawater, water, etc. in the annular gap 18 can flow to prevent overheating of the internal socket part 3 of the lamp body 1.