JP2009009902A - Light - Google Patents

Abstract

An implantable lamp is provided in which the exhaust efficiency of moisture in a pipe is not significantly reduced by the wind direction.
The implantable lamp 100 is disposed in a pipe 1 having a buried portion 1a buried in the ground and a vent hole 11 provided above the buried portion 1a, and an upper portion in the pipe 1. An instrument body 3 that supports the lamp unit 4 and a cover unit 5 that is attached to the instrument body 3 so as to cover the lamp unit 4 together with the instrument body 3 and has a lower end edge 54a that abuts against the upper end edge 1c of the pipe 1 in the attached state. And. A slit S extending substantially over the entire circumference is formed at the abutting portion between the pipe 1 and the cover unit 5, and a passage 30 for communicating the slit S and the vent hole 11 is provided in the instrument body 3. It has been.
[Selection] Figure 2

Description

  The present invention relates to an implanted lamp that illuminates the surroundings while standing on the ground.

  2. Description of the Related Art Conventionally, there are known implanted lamps that are installed on the ground of a parking lot or a garden and illuminate the surroundings in that state. Since such a potted light is erected on the ground by embedding the lower part of the pipe, which is a column, in the ground, moisture in the ground tends to be trapped in the pipe. As a result, when moisture enters the interior of the lamp unit housing space located at the top of the pipe, dew condensation occurs on the inner surface of the cover unit covering the lamp unit. There was an inconvenience that the above-mentioned appearance deteriorated.

In view of this, an implantable lamp in which a plurality of ventilation holes are formed in a pipe has been proposed as in Patent Document 1. These vent holes are arranged so as to be shifted in the circumferential direction of the pipe. When the wind blows, the air pressure in the vicinity of the air holes becomes different from each other, and an air flow passing through the pipe using the air holes as inlets and outlets is generated from the pressure difference. And the moisture in a pipe is discharged | emitted outside by this airflow.
JP 2001-167613 A

  However, in the configuration as described in Patent Document 1, since the air pressure in the vicinity of each vent hole is affected by the wind direction, the magnitude of the air pressure difference between the vent holes varies greatly depending on the wind direction. As a result, the speed of the airflow passing through the pipe changes greatly, and depending on the wind direction, the airflow passing through the pipe may hardly occur.In such a case, the efficiency of exhausting moisture in the pipe may be greatly reduced. become.

  In a place where there are buildings around a parking lot or a garden, it is rare that the wind continues to blow from a certain direction, and the wind direction changes every moment.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an implantable lamp in which the exhaust efficiency of moisture in the pipe is not significantly reduced by the wind direction.

  The invention according to claim 1 is a pipe having a buried portion buried in the ground and a vent hole provided above the buried portion, and an instrument main body disposed on the upper portion of the pipe and supporting the lamp unit. A lamp unit comprising a cover unit attached to the fixture body so as to cover the lamp unit together with the fixture body, and having a lower end edge that faces the upper end edge of the pipe in the attached state, the pipe and the pipe The abutting portion with the cover unit is formed with a slit extending substantially over the entire circumference, and the instrument body is provided with a passage for communicating the slit and the vent hole. Is.

  According to a second aspect of the present invention, in the implantable lamp according to the first aspect, the instrument body includes an outer cylinder portion fitted in the pipe, and an inner peripheral side of the outer cylinder portion concentric with the outer cylinder portion. An outer cylinder portion disposed at a predetermined interval and supporting the lamp unit and to which the cover unit is attached; and an outer cylinder portion and a connecting portion for connecting the inner cylinder portion; A space part surrounded by the inner cylinder part and the connecting part functions as the passage.

  According to a third aspect of the present invention, in the implantable lamp according to the second aspect, the cover unit includes a glove surrounding the lamp unit and a cover disposed on an outer peripheral side of the glove. An outer cylinder main body attached to the pipe, and an outer cylinder flange extending radially outward from the upper portion of the outer cylinder main body so as to enter the slit and contacting the upper end edge of the pipe from above. The cylindrical portion includes an inner cylinder body that supports the lower end of the globe, an inner cylinder body that extends radially outward from the upper end portion of the inner cylinder body, and an outer edge of the inner cylinder body that faces the inner peripheral surface of the cover with a predetermined interval. A cylinder flange, wherein the inner cylinder flange radially overlaps the outer cylinder main body, and an upper surface of the outer cylinder main body is inclined so as to descend outward. It is what.

  According to a fourth aspect of the present invention, in the implantable lamp according to the first aspect, the instrument body includes a cylindrical portion that is attached to the pipe in a state of being spaced apart from the inner peripheral side of the pipe. A space portion surrounded by the pipe functions as the passage.

  According to a fifth aspect of the present invention, in the implantable lamp according to the fourth aspect, the cover unit includes a glove that surrounds the lamp unit, and a cover that is disposed on an outer peripheral side of the glove. A lower cylinder attached to the pipe, an upper cylinder that extends upward while reducing the diameter from the upper end of the lower cylinder and supports the lower end of the globe, and a boundary between the lower cylinder and the upper cylinder A flange extending radially outward so as to enter the slit from a portion and being in non-contact with both the upper end edge of the pipe and the lower end edge of the cover unit. It is divided into side slits, and the lower slit communicates with the passage.

  According to the first aspect of the present invention, by forming the slit extending over the entire circumference at the abutting portion between the pipe and the cover unit, the wind blown from any direction can be leeward from the portion corresponding to the windward side of the slit. It smoothly blows through the slit to the part corresponding to. That is, no matter which direction the wind blows, if the wind speed is equal, the speed of the wind that blows through the slit will be substantially constant. Furthermore, by providing a passage that allows the slit and the vent hole to communicate with each other in the instrument body, the wind is blown through the slit, whereby the inside of the pipe is depressurized (negative pressure), and air flows from the vent hole into the pipe. Since the air flows in and flows out to the outside along with the wind that blows through the slit through the passage, an airflow that naturally passes through the pipe with the air hole as the inlet and the slit as the outlet naturally occurs. And the moisture in a pipe comes to be discharged | emitted outside from a slit by the said airflow. Here, as described above, since the speed of the wind that blows through the slit is almost constant regardless of the wind direction, the atmospheric pressure (negative pressure) in the pipe hardly changes even if the wind direction changes. This makes it difficult for the velocity of the airflow passing through the pipe to change, so that the efficiency of discharging moisture in the pipe is not greatly reduced. Accordingly, moisture can be continuously prevented from entering the housing space of the lamp unit, so that condensation does not easily occur on the inner surface of the cover unit, and deterioration of appearance due to condensation and reduction of the amount of radiation can be prevented. .

  Further, since a passage for communicating the slit and the vent hole is provided in the instrument main body, an air flow having the vent hole as an inlet and the slit as an outlet is arranged in the vicinity of the instrument main body. Thereby, it is possible to reliably prevent moisture from staying in the vicinity of the appliance main body, so that it is possible to further suppress moisture from entering the housing space of the lamp unit.

  According to the second aspect of the present invention, it is possible to form a passage in the instrument main body which is fitted in the pipe while supporting the lamp unit and to which the cover unit is attached.

  According to the third aspect of the present invention, after rainwater flowing down the gap between the globe and the cover is received by the inner cylinder flange, it is guided to the upper surface of the outer cylinder main body through the gap between the inner cylinder flange and the cover, and the outer cylinder It can drain to the outside through the slit from the upper surface of the main body and the outer cylinder flange.

  According to the invention of claim 4, while being attached to the pipe from the inside, the lamp unit is supported, and a passage can be formed in the instrument body to which the cover unit is attached.

  According to the fifth aspect of the present invention, the rain water flowing down the gap between the globe and the cover can be drained to the outside from the upper surface of the flange through the upper slit. Further, the air containing moisture in the pipe can be discharged to the outside through the passage and the lower slit.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is an exploded perspective view showing an overall configuration of an implantable lamp according to a first embodiment of the present invention, and FIG. 2 is a partial sectional front view showing a state in which the implantable lamp of the first embodiment is installed. . 3 is a cross-sectional view taken along the line III-III in FIG. 2, and FIG. 4 is an enlarged cross-sectional view showing a configuration in the vicinity of the slit of the implanted lamp shown in FIG. 5 and 6 are cross-sectional front views showing the wind flow path, the air flow path, and the rainwater flow path in the implantable lamp of the first embodiment. First, with reference to FIG. 1 and FIG. 2, the whole structure of the implantation lamp 100 of 1st Embodiment is demonstrated.

  The implantable lamp 100 of the first embodiment is configured to stand on the ground such as a parking lot or a garden, and illuminate the surroundings in that state.

  As shown in FIGS. 1 and 2, the implantable lamp 100 includes a pipe 1 functioning as a support and a wiring 2 embedded in the underground G (see FIG. 2) and drawn into the pipe 1 through an opening at the lower end of the pipe 1. An instrument body 3 disposed in the upper part of the pipe 1, a lamp unit 4 supported by the instrument body 3 and electrically connected to an end of the wiring 2 on the drawing side, and the lamp unit together with the instrument body 3 4 is provided with a cover unit 5 attached to the instrument body 3 so as to cover 4.

  In the implantable lamp 100 according to the present embodiment, a lower end edge 54a (described later) of the cover unit 5 abuts on an upper end edge 1c of the pipe 1, and the abutting portion between the pipe 1 and the cover unit 5 has a substantially entire circumference. A slit S (see FIG. 2) extending over the distance is formed. That is, the cover unit 5 is attached to the instrument body 3 such that a predetermined gap (the slit S) is formed between the upper end edge 1c of the pipe 1 and the lower end edge 54a of the cover unit 5. Thus, by providing the slit S extending substantially over the entire circumference in the implantable lamp 100, the wind blown from any direction can be changed from the portion corresponding to the windward side of the slit S to the portion corresponding to the leeward inside the slit S. You will be able to blow through smoothly. In addition, the ground height of the implantation lamp 100 in the installed state is about 80 cm.

  Hereinafter, each component of the implantation lamp 100 will be described in detail.

  The pipe 1 has a hollow structure, and the implanted lamp 100 is erected on the ground by embedding the lower part of the pipe 1 in the underground G. The pipe 1 is composed of an embedded part 1a buried in the underground G and an exposed part 1b located above the buried part 1a and exposed to the ground. In the present embodiment, the length of the buried portion 1a is about 40 cm.

  A vent hole 11 is provided in the exposed portion 1b. As shown in FIG. 2, the vent hole 11 is preferably provided at a position somewhat away from the ground below the exposed portion 1b. If it is provided at such a position, it is possible to prevent moisture near the ground from entering the pipe 1 from the vent hole 11.

  Three screw insertion holes 12 are provided in the upper part of the exposed portion 1b so as to be equiangularly spaced in the circumferential direction of the pipe 1 at the same height position. Screws 61 for fixing the instrument body 3 to the pipe 1 are respectively inserted into the screw insertion holes 12.

  The wiring 2 is inserted into a later-described hole 34 a of the instrument body 3 and is electrically connected to the lamp unit 4, and thereby configured to supply electric power to the lamp unit 4.

  The instrument body 3 is inserted into the pipe 1 from above, and is fixed to the upper portion of the pipe 1 with screws 61 in the inserted state. The instrument body 3 includes an outer cylinder part 31, an inner cylinder part 32, a connecting part 33, and a support plate 34.

  The outer cylinder part 31 is configured to be fitted into the pipe 1. This outer cylinder part 31 has the outer cylinder main body 31a, the outer cylinder flange 31b, and the backflow prevention part 31c.

  A screw hole 31d is formed in the outer cylinder main body 31a. 31 d of screw holes are for the screw 61 inserted in the screw insertion hole 12 of the pipe 1 to be screwed together, and are three at equal angular intervals in the circumferential direction so as to correspond to the screw insertion hole 12 of the pipe 1 ( FIG. 1 shows only two).

  As shown in FIG. 4, the outer cylinder flange 31b extends radially outward so as to enter the slit S from the upper part of the outer cylinder body 31a. The upper surface of the outer cylinder flange 31b has a predetermined gap with the lower end edge 54a of the cover unit 5, and the lower surface of the outer cylinder flange 31b is in contact with the upper end edge 1c of the pipe 1 from above. . That is, in this embodiment, the gap between the upper surface of the outer cylinder flange 31b and the lower end edge 54a of the cover unit 5 functions as a substantial slit S.

  The backflow preventing portion 31c is formed at the upper end of the outer cylinder main body 31a, and is inclined so that the upper surface thereof is lowered in the radially outward direction. Thereby, it can suppress that rainwater etc. get over the outer cylinder part 31 to the inner peripheral side.

  The inner cylinder part 32 is concentric with the outer cylinder part 31 and is arranged on the inner peripheral side of the outer cylinder part 31 with a predetermined interval. The cover unit 5 is attached to the inner cylinder portion 32. Moreover, the inner cylinder part 32 contains the inner cylinder main body 32a, the inner cylinder flange 32b, and the positioning part 32c.

  The inner cylinder main body 32a supports the lower end of the globe 51 described later. The inner cylinder flange 32b extends radially outward from the upper end of the inner cylinder main body 32a, and the outer edge of the inner cylinder flange 32b faces an inner peripheral surface of a cover 52, which will be described later, at a predetermined interval. Rainwater or the like passes through the gap between the inner cylinder flange 32b and the cover 52. Further, the inner cylinder flange 32b overlaps the backflow prevention portion 31c in the radial direction, so that rainwater that has passed through the gap falls onto the backflow prevention portion 31c.

  The positioning portion 32c extends upward from the upper end of the inner cylinder main body 32a in a cylindrical shape, and contacts the lower end of the globe 51 supported by the inner cylinder main body 32a from the inner peripheral side, thereby It positions so that it may become concentric with the inner cylinder main body 32a.

  The connection part 33 is for connecting the outer cylinder part 31 and the inner cylinder part 32 to radial direction. As shown in FIG. 3, four connecting portions 33 are provided between the outer tube portion 31 and the inner tube portion 32 so as to be equiangularly spaced in the circumferential direction.

  The instrument main body 3 configured as described above has four passages 30 surrounded by the outer cylinder part 31, the inner cylinder part 32, and the connecting part 33. Each passage 30 extends in the vertical direction, and its upper end is connected to the slit S and its lower end is connected to the space in the pipe 1. In the present embodiment, the slits S and the air holes 11 communicate with each other through these four passages 30.

  The support plate 34 is provided so as to close the opening at the lower end of the inner cylinder portion 32, and supports the lamp unit 4 while being accommodated in the inner cylinder portion 32. A hole 34 a for allowing the wiring 2 to pass therethrough is formed in the approximate center of the support plate 34. A packing 36 is disposed immediately above the hole 34a so that the wiring 2 can be inserted into the hole 34a of the support plate 34 in a watertight state.

  The lamp unit 4 includes a lamp 41 as a light source and a socket 42 that supports the lamp 41. The lamp unit 4 is supported by the appliance body 3 in such a posture that the lamp 41 protrudes above the upper end edge 1c of the pipe 1. The wiring 2 is electrically connected to the socket 42.

  The cover unit 5 is attached to the fixture main body 3 so as to cover the lamp unit 4, and has a lower end edge 54a that abuts on the upper end edge 1c of the pipe 1 in the attached state. The cover unit 5 includes a globe 51, a cover 52, and a lid 53.

  The globe 51 is formed in a cylindrical shape surrounding the lamp unit 4 and is supported by the inner cylinder main body 32 a via the packing 35. The globe 51 has a prism portion 51a for diffusing and softening transmitted light on the outer surface thereof.

  The cover 52 has a fixing portion 54, a pair of support columns 55, and a top plate 56. The fixing portion 54 is disposed in a state having a slight gap between the fixing portion 54 and the outer periphery of the globe 51 so as to surround the lower portion of the globe 51. This gap is provided in order to pass rainwater or the like. The fixing portion 54 is formed with three screw holes 54b (only two are shown in FIG. 1) so as to be equiangularly spaced in the circumferential direction. A screw 62 is screwed into each screw hole 54b. As shown in FIG. 4, the screw 62 is configured so that its tip protrudes to the inner surface side of the fixed portion 54 in a screwed state, and its protruding tip contacts the lower surface of the inner cylinder flange 32b from below. As a result, the cover unit 5 is fixed to the instrument main body 3 without falling out.

  The support columns 55 extend upward from symmetrical positions on the upper surface of the fixed portion 54, and support the top plate 56 at their upper end portions. The top plate 56 is disposed above the lamp unit 4. The upper end of the globe 51 is in contact with the lower surface of the top plate 56 via a packing 57. In this way, the water tightness of the space including the lamp unit 4 is sufficiently ensured by the packings 35 and 57 provided above and below the globe 51.

  The lid 53 has a cylindrical shape (cap shape) with an opening on the lower surface, and is fixed to the top plate 56 with screws 63 so as to cover the cover 52 from above.

  In the implantable lamp 100 configured as described above, the moisture of the underground G (see the two-dot chain line in FIG. 2) is easily trapped in the pipe 1. When moisture enters the housing space of the lamp unit 4 provided at the top of the pipe 1, dew condensation occurs on the inner surface of the cover unit 5 that covers the lamp unit 4.

  However, according to the present embodiment, when the wind blows, the wind blows through the slit S (see arrow A in FIGS. 5 and 6), so the atmospheric pressure in the pipe 1 decreases. Thereby, air flows in from the vent hole 11, and this flowed-in air moves toward a lower pressure direction (upward) in the pipe 1 (see arrow B). At this time, the humidity in the pipe 1 also moves upward together with the air. Then, these air and moisture flow out from the slit S together with the wind blowing through the slit S (see arrows A + B). In this way, the occurrence of condensation as described above can be prevented.

  Further, according to the implanted lamp 100 having the above-described configuration, rainwater (see arrow C in FIGS. 5 and 6) that has slanted downward toward the globe 51 passes through the gap between the globe 51 and the cover 54, and the inner cylinder It flows down to the upper surface of the flange 32b, and further flows down to the upper surface of the backflow prevention part 31c through the gap between the inner cylinder flange 32b and the cover 54. And it drains outside through the slit S.

  In the first embodiment, as described above, the slit S extending substantially over the entire circumference is formed in the abutting portion between the pipe 1 and the cover unit 5, so that the wind blown from any direction can be winded up the slit S. Thus, the slit S is smoothly blown from the portion corresponding to to the portion corresponding to leeward. That is, no matter which direction the wind blows, if the wind speed is the same, the speed of the wind that blows through the slit S is substantially constant. Furthermore, by providing the instrument body 3 with a passage 30 that allows the slit S and the vent hole 11 to communicate with each other, the inside of the pipe 1 is depressurized through the passage 30 (negative pressure) through the passage S 30 when the wind blows through the slit S. Since air flows into the pipe 1 from the air holes 11 and the inflowed air flows out through the passage 30 together with the wind blowing through the slit S, the pipe having the air holes 11 as the inlet and the slit S as the outlet. Airflow that passes through the interior of the 1 naturally occurs. And the moisture in the pipe 1 comes to be discharged | emitted from the slit S outside by the said airflow. Here, as described above, since the speed of the wind that blows through the slit S is almost constant regardless of the wind direction, the atmospheric pressure (negative pressure) in the pipe 1 hardly changes even if the wind direction changes. As a result, the speed of the airflow passing through the pipe 1 is unlikely to change, so that the moisture discharge efficiency in the pipe 1 is not greatly reduced. Accordingly, moisture can be continuously prevented from entering the housing space of the lamp unit 4, so that it is difficult for condensation to occur on the inner surface of the globe 51, and it is possible to prevent deterioration in appearance and decrease in the amount of radiated light due to condensation. it can.

  In addition, since the passage 30 that allows the slit S and the vent hole 11 to communicate with each other is provided in the instrument main body 3, an airflow having the vent hole 11 as an inlet and the slit S as an outlet is disposed in the vicinity of the instrument main body 3. Thereby, it is possible to reliably prevent moisture from staying in the vicinity of the appliance main body 3, so that it is possible to further suppress moisture from entering the housing space of the lamp unit 4.

  Moreover, according to the implantable lamp 100 of 1st Embodiment, after receiving the rain water which passes along the clearance gap between the globe 51 and the cover 52 with the inner cylinder flange 32b, it prevents backflow through the clearance between the inner cylinder flange 32b and the cover 52. It can guide | invade to the upper surface of the part 31c, and can drain outside through the slit S from the upper surface of the said backflow prevention part 31c and the outer cylinder flange 31b.

  Further, in the first embodiment, as described above, the slit S and the vent hole 11 are arranged apart from each other in the height direction to some extent, so that the speed of the airflow with the vent hole 11 as the inlet and the slit S as the outlet is high. It is faster due to the so-called tunnel effect. Thereby, the discharge efficiency of the moisture in the pipe 1 is improved.

(Second Embodiment)
FIG. 7 is a partial cross-sectional front view showing a state where an implantable lamp according to a second embodiment of the present invention is installed, and FIG. 8 is an enlarged cross-sectional view showing a configuration in the vicinity of the slit of the implantable lamp shown in FIG. It is. FIG. 9 and FIG. 10 are cross-sectional front views showing a wind flow path, an air flow path, and a rainwater flow path in the implantable lamp of the second embodiment.

  The implantable lamp 200 according to the second embodiment includes an instrument body 203 having a configuration different from that of the instrument body 3 according to the first embodiment. Accordingly, the configurations of the slit S ′ and the passage 230 are also the same as those of the first embodiment. Is different.

  Specifically, the instrument main body 203 of the second embodiment is attached to the pipe 1 in a state of slightly floating upward without being completely fitted into the pipe 1. As shown in FIGS. 7 and 8, the instrument main body 203 includes a cylindrical portion 231 and a support plate 34 having the same configuration as that of the first embodiment.

  The cylindrical portion 231 extends upward while reducing the diameter from the lower cylindrical body 231a attached to the pipe 1 with a predetermined interval on the inner peripheral side of the pipe 1, and the globe 51 extending from the upper end of the lower cylindrical body 231a. The upper cylinder 231b that supports the lower end of the pipe 1, and the upper edge 1c of the pipe 1 and the lower edge of the cover unit 5 extend radially outward so as to enter the slit S ′ from the boundary between the lower cylinder 231a and the upper cylinder 231b. A lower flange 231c that is not in contact with both 54a, and an upper flange 231d that extends radially outward from the upper end of the upper cylindrical body 231b and whose outer end edge faces the inner peripheral surface of the cover 52 with a predetermined gap therebetween. And have.

  And in the implantation lamp 200 of this embodiment, the slit S 'extended over substantially the perimeter is formed in the butt | matching part of the pipe 1 and the cover unit 5, and this slit S' is as shown in FIG. The lower flange 231c separates the lower slit S1 and the upper slit S2.

  The instrument main body 203 has a passage 230 surrounded by the lower cylindrical body 231 a and the pipe 1. The passage 230 extends in the vertical direction, and an upper end thereof is connected to the lower slit S <b> 1 and a lower end thereof is connected to a space in the pipe 1. In the present embodiment, the lower slit S1 and the vent hole 11 communicate with each other through the passage 230.

  According to the implantable lamp 200 of the second embodiment, when the wind blows, the wind blows through the lower slit S1 (see the arrow D in FIGS. 9 and 10), so that the air pressure in the pipe 1 decreases. Thereby, air flows in from the vent hole 11, and this flowed-in air moves toward a lower pressure direction (upward) in the pipe 1 (see arrow E). At this time, the humidity in the pipe 1 also moves upward together with the air. Then, these air and moisture flow out from the lower slit S1 together with the wind blowing through the lower slit S1 (see arrow D + E). In this way, it is possible to prevent condensation from forming on the inner surface of the cover unit 5.

  Further, according to the implantable lamp 200 having the above-described configuration, rainwater (see arrow F in FIGS. 9 and 10) that has slanted downward toward the globe 51 passes through the gap between the globe 51 and the cover 54 and is connected to the upper flange. It flows down to the upper surface of 231d, and further flows down to the upper surface of the lower flange 231c through the gap between the upper flange 231d and the cover 54. And it drains outside through upper slit S2.

  According to the implantable lamp 200 of the second embodiment, rainwater that falls through the gap between the globe 51 and the cover 1 can be drained from the upper surface of the lower flange 231c to the outside through the upper slit S2. Further, the air containing moisture in the pipe 1 can be discharged to the outside through the passage 230 and the lower slit S1.

  Moreover, in the implantable lamp 200 of 2nd Embodiment, it is possible to form the channel | path 230 easily by fixing to the pipe 1 in the state which floated the instrument main body 203 upwards.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, the structure which attaches the instrument main body 3 of 1st Embodiment to the pipe 1 in the aspect which floated upwards like the instrument main body 203 of 2nd Embodiment may be sufficient. In this case, passages that allow the slits S and the air holes 11 to communicate with each other are formed on the radially outer side and the inner side of the outer cylinder portion 31, respectively.

  Moreover, in the said embodiment, the number of the vent holes provided in a pipe will not be restrict | limited if it is a range in which the external appearance of the said implantation lamp does not deteriorate remarkably.

  Moreover, in the said embodiment, although the example which applies this invention to the implantation lamp directly embedded in the ground was shown, not only this but this invention is applied also to the implantation lamp standing on the ground via a concrete foundation. Applicable. In addition, concrete foundations generally take a long time to completely dry, and until then, moisture will continue to evaporate from the concrete. A large amount of moisture is easily trapped. Therefore, a sufficient effect can be obtained by applying the present invention.

It is the disassembled perspective view which showed the whole structure of the implantation lamp by 1st Embodiment of this invention. It is the fragmentary sectional front view which showed the state which installed the implantation lamp of 1st Embodiment. It is sectional drawing along the III-III line in FIG. FIG. 3 is an enlarged cross-sectional view showing a configuration in the vicinity of a slit of the implantable light shown in FIG. 2. FIG. 3 is a cross-sectional front view showing a wind flow path, an air flow path, and a rainwater flow path in the implantable lamp shown in FIG. 2. FIG. 5 is a cross-sectional front view illustrating a wind flow path, an air flow path, and a rainwater flow path in the implantable lamp illustrated in FIG. 4. It is the fragmentary sectional front view which showed the state which installed the implantation lamp by 2nd Embodiment of this invention. FIG. 6 is an enlarged cross-sectional view showing a configuration in the vicinity of the slit of the implanted lamp shown in FIG. 5. It is the cross-sectional front view which showed the flow path of the wind in the implantation lamp shown in FIG. 7, the flow path of air, and the flow path of rainwater. FIG. 9 is a cross-sectional front view illustrating a wind flow path, an air flow path, and a rainwater flow path in the implantable lamp illustrated in FIG. 8.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pipe 1a Buried part 1c Upper end edge 3,203 Instrument main body 4 Lamp unit 5 Cover unit 11 Vent hole 30,230 Passage 31 Outer cylinder part 31a Outer cylinder body 31b Outer cylinder flange 32 Inner cylinder part 32a Inner cylinder body 32b Inner cylinder flange 33 Connecting part 51 Globe 52 Cover 54a Lower end edge 100, 200 Implanted light 231 Tube part 231a Lower cylinder 231b Upper cylinder 231c Lower flange (flange)
S, S 'slit S1 lower slit S2 upper slit

Claims (5)

A pipe having a buried portion buried in the ground and a vent hole provided above the buried portion;
An instrument body that is disposed in the upper part of the pipe and supports the lamp unit;
An implantable lamp comprising: a cover unit that is attached to the instrument body so as to cover the lamp unit together with the instrument body, and has a lower end edge that abuts the upper end edge of the pipe in the attached state;
In the butt portion between the pipe and the cover unit, a slit is formed that extends over substantially the entire circumference.
An implantable lamp characterized in that a passage for communicating the slit and the vent hole is provided in the instrument body. The instrument main body is disposed on the inner cylinder side of the outer cylinder part concentrically with the outer cylinder part fitted inside the pipe, with a predetermined interval and supports the lamp unit. An inner cylinder portion to which a cover unit is attached; and a connecting portion that connects the outer cylinder portion and the inner cylinder portion;
The implantable lamp according to claim 1, wherein a space portion surrounded by the outer tube portion, the inner tube portion, and the connecting portion functions as the passage. The cover unit includes a glove surrounding the lamp unit, and a cover disposed on the outer peripheral side of the glove,
The outer cylinder portion includes an outer cylinder main body attached to the pipe, and an outer cylinder flange that extends radially outward so as to enter the slit from the upper portion of the outer cylinder main body and contacts the upper end edge of the pipe from above. Have
The inner cylinder portion extends radially outwardly from an inner cylinder main body that supports the lower end of the globe, and an outer edge thereof faces the inner peripheral surface of the cover with a predetermined interval. An inner cylinder flange that
The inner cylinder flange overlaps the outer cylinder body in the radial direction,
The implantable lamp according to claim 2, wherein an upper surface of the outer cylinder main body is inclined so as to descend downward. The instrument body includes a cylinder portion attached to the pipe in a state of being spaced a predetermined distance on the inner peripheral side of the pipe,
The implantable lamp according to claim 1, wherein a space portion surrounded by the cylindrical portion and the pipe functions as the passage. The cover unit includes a globe that surrounds the lamp unit, and a cover that is disposed on an outer peripheral side of the globe,
The cylindrical portion includes a lower cylindrical body attached to the pipe, an upper cylindrical body that extends upward from the upper end portion of the lower cylindrical body and supports the lower end of the globe, the lower cylindrical body, and the upper cylindrical body. A flange that extends in a radially outward direction so as to enter the slit from a boundary portion with a cylindrical body and has a non-contact flange on both the upper end edge of the pipe and the lower end edge of the cover unit;
5. The implantable lamp according to claim 4, wherein the slit is divided into an upper slit and a lower slit by the flange, and the lower slit communicates with the passage.

Images