JP2016153580A - Inspection port unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inspection port unit for a column which has strength and durability against both normal stress and maximum stress while projection from a columnar support pipe is reduced.SOLUTION: An inspection port unit of this invention is the inspection port unit attached to an opening for an inspection port installed in a support pipe and comprises: a first horizontal member which can be inserted in an interior space of the support pipe from a first side end of the opening; a second horizontal member which can be inserted in the interior space from a second side end on the side opposite to the first side end; and a connection member for connecting the first horizontal member and the second horizontal member. The first horizontal member, the second horizontal member and the connection member are each in a plate shape and the connection member is located behind the interior space of the support pipe when the inspection port unit is attached to the opening.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an inspection port unit provided on a support column that supports an electronic device.

  Various pillars such as street lights, traffic lights, luminous lamps, radio towers, base stations such as mobile phones, installation poles such as speakers and security cameras are erected in various places. These columns support electronic devices such as light emitters and transceivers. For example, street lamps, traffic lights, light-emitting lamps, and the like are provided with support columns attached with light emitters according to their purposes. Or a radio tower or a base station is provided with the support | pillar which attached the transmitter / receiver of the radio wave. The speaker installation pole has a column with a speaker attached, and the security camera installation pole has a column with a camera attached.

  As described above, structures including support columns that support electronic devices are erected at various places. In other words, pillars that support various electronic devices are installed in various places according to their respective purposes and applications. These columns are provided with the electronic devices as described above in places where they are above the columns or are support materials extending from the columns.

  For this reason, these support | pillars receive the load of the electronic device to which they are attached in addition to the load of the support | pillar itself. In addition, these struts are not only subjected to wind or earthquake vibrations, wind pressure, and vibrations transmitted from the ground by transportation equipment, but also are applied to the electronic equipment installed, vibrations, wind pressure, and transportation due to earthquakes. Subjected to vibrations transmitted from the ground by equipment. That is, the support column to which the electronic device is attached is in a state of receiving both vibration and wind pressure that the support device receives and vibration and wind pressure that the attached electronic device receives.

  Moreover, it is necessary for the support | pillar which attaches an electronic device to store the electrical wiring apparatus (for example, a breaker, a switch, etc.) for supply of the electric power and electric signal to an electronic device in the inside. This is because these electrical wiring devices need to be protected from wind and rain.

  These electrical wiring devices need to be manually maintained and repaired as necessary. For example, when the electronic apparatus is a lighting device, it is necessary to check or replace a power supply unit that restricts power supply to the lighting device. For this reason, the electrical wiring device needs to be stored in the support column and be able to receive work such as maintenance and repair afterwards and artificially.

  Such an electrical wiring device that undergoes subsequent and artificial operations and repairs is housed inside the column pipe, which is the main body of the column as described above. In this storage, it is stored in an internal space that is provided in the support pipe and can be opened. A part of the surface of the column tube can be opened (a lid for opening is provided), an internal space is provided in the opened interior, and the electrical wiring device is stored in the internal space.

  This lid and internal space are often called inspection ports. When the lid that is part of the inspection port is opened, the internal space is exposed. Electrical wiring equipment is stored in the exposed internal space. An operator opens the lid and performs maintenance and repair of the electrical wiring equipment stored in the internal space. Since such operations and repairs are performed regularly or irregularly, they are called inspection ports.

  This inspection port is provided in the middle of the column pipe. In order to facilitate work by the worker, the inspection port is often provided at a position that matches the standing position of the person. This inspection port requires an opening connected to the internal space. A lid is attached to the opening, but only the portion of the opening in the column tube is cut off.

  The support | pillar provided with an electronic device is exposed to the vibration and wind pressure which are added to the support | pillar pipe itself as mentioned above, or the vibration and wind pressure which are applied to an electronic device. It is necessary to support these vibrations and wind pressure with the support pipe. However, when the inspection port is provided in the middle of the support pipe, an opening is generated, and naturally the strength and durability of the support pipe as a columnar shape are lost.

  For this reason, the support | pillar which has an inspection port has the problem that the intensity | strength and durability will weaken inevitably by the opening part provided in a support | pillar pipe | tube. For this reason, it is often inferior in terms of strength and durability as compared to a sign post (a post without an electronic device) that does not require an inspection port. On the other hand, the support column including the electronic device requires an inspection port for maintenance and repair of the electrical wiring device as described above. For this reason, the support | pillar which has the opening part for an inspection in a support | pillar pipe | tube is needed in many scenes.

  As described above, it is necessary for a column having an inspection port to ensure strength and durability against stress and load caused by vibration, pressure, and wind pressure applied to the column tube and the electronic device.

  The inspection port is formed by opening an opening in a part of the column tube and providing a removable lid on the opening. For this reason, an opening part may be in the state which protruded the exterior of the support | pillar pipe | tube for the ease of manufacture of a lid | cover, and the ease of attachment and removal. FIG. 11 is a perspective view of an inspection port in the prior art.

  As shown in FIG. 11, the column tube 100 is a columnar member having a hollow 101. This column pipe 100 is a basic member of the column. In FIG. 11, only the vicinity of the inspection port 102 of the support pipe 100 is shown. The inspection port 102 has a convex portion 104 formed in the opening 103. A flat lid 105 is attached to the opening 103 in accordance with the convex 104.

  Thus, it is preferable that the inspection port 102 protrudes with the convex part 104 because the lid | cover 105 can be made flat. In addition, since the opening 103 after removing the lid 105 is also a flat entrance, the operator can easily operate and repair the electric wiring device regardless of the columnar column tube 100.

  On the other hand, the state in which the inspection port 102 protrudes outwardly from the column tube 100 as shown in FIG. Furthermore, since the inspection port 102 is often provided at a position that matches the standing position of the worker as described above, the inspection port 102 exists at a position that matches the standing position of the pedestrian in the walking state. For this reason, the inspection port 102 protruding in a convex shape becomes an obstacle for pedestrians and has a high risk.

  As described above, the inspection port provided in the conventional column has the following two major problems.

  (Problem 1) Insufficient strength and durability against stress and load due to vibration, pressure and wind pressure due to the opening of the inspection port.

  (Problem 2) There is a risk of poor appearance and pedestrians due to the protruding inspection port.

  In response to these problems, various techniques have been proposed (see, for example, Patent Documents 1 and 2).

JP 2013-79567 A JP 2004-92254 A

  Patent Document 1 is a steel pipe pole having a lamp for illuminating a road and a steel pipe column that supports the lamp, and has an opening on the outer periphery of the lower part of the steel pipe column, and the end of the opening is a steel pipe column. A steel pipe pole is disclosed in which a reinforcing member made of a rib bent inwardly and projecting continuously in the inner direction of the steel pipe column is formed.

  In Patent Document 1, as shown in FIG. 2, an opening is provided in a part of a cylindrical steel pipe pole, and a lid is provided in accordance with the curved shape of the opening without protruding the outer periphery of the opening. Yes. By matching the lid with the curved surface shape of the opening, it is possible to form a state in which the inspection port does not protrude even when the lid is closed. For this reason, it is going to eliminate the protrusion of the inspection port of the above-mentioned problem 1.

  As shown in FIG. 2, the inspection port of Patent Document 1 is formed with an opening provided in a part of the steel pipe pole and an end face of the opening bent inward. A lid is fitted into a recessed portion generated in a state where the end surface of the opening is bent inward, and the lid prevents the inspection port from protruding along the curved surface shape of the steel pipe pole.

  The inspection port of patent document 1 has the opening part which cut out a part of steel pipe pole in the predetermined shape. As described above, the steel pipe pole, which is a support pipe, is a hollow cylindrical member, and the opening and the opening provide a significant reduction in strength and durability with the opening as a center. It is considered that the end face of the opening is bent inward to increase the strength of the end face of the opening.

  However, the stress and load due to vibration and wind pressure applied to the steel pipe pole are often concentrated on the weak part of the steel pipe pole while being applied to the entire support pipe. Naturally, since the opening is a portion obtained by cutting the steel pipe pole, it is the weakest part in the steel pipe pole. For this reason, the stress applied to the steel pipe pole tends to concentrate, and there is a high possibility of bending, cracking, breakage, and the like.

  Here, for the application of stress and load, (stress 1) continuous or intermittent normal stress due to a certain range of vibration, etc. (stress 2) instantaneous due to instantaneous and very strong impact due to gusts or impacts And strong maximum stress.

  The opening part of the inspection port in Patent Document 1 considers increasing the strength against stress by bending the end face inward. However, although it can cope with the normal stress, which is the stress 1, to some extent, the bent end surface is only along the outer periphery of the opening, and is a member that floats on the steel pipe pole. For this reason, it is difficult to cope with the instantaneous and strong maximum stress which is the stress 2. For example, in the case of strong maximum stress due to an impact caused by a gust or a collision, there is a concern that the opening may be bent. This is because the bent end face is in a floating state.

  Even when the normal stress of stress 1 is applied continuously or intermittently, the normal stress naturally concentrates on the opening. Even in this case, the opening itself is only in a state in which a part of the steel pipe pole is cut off, and even if it is bent inward, the bent portion is only a member in a floating state. May concentrate for a long time, and may still be broken or cracked.

  As described above, the inspection port of Patent Document 1 has a large weight or volume such as a traffic light or an electronic sign, and in a support column including an electronic device that has a large load when subjected to vibration or wind pressure, the normal opening and the maximum stress are not affected. Durability may be insufficient.

  Furthermore, the inspection port of Patent Document 1 has a problem that it can be formed only on the same diameter pipe portion of the steel pipe pole which is a support pipe because it is necessary to bend the end face of the opening portion inward by pressing or the like. . The strut tube includes the same diameter tube formed with only the same diameter, the tapered tube with the diameter decreasing from the bottom to the top, and the mixed tube with the same diameter part and the diameter decreasing part mixed. is there.

  The inspection port of Patent Document 1 has a limitation that can be formed only in the same diameter portion of the same diameter tube or the mixed tube in such various types of support pipes. Due to this limitation, there is a problem that the types of support columns that can use the inspection port of Patent Document 1 are limited. This can be applied only to, for example, a light-emitting lamp whose electronic equipment attached to the column tube is lightweight, together with the difficulty in dealing with the maximum stress.

  Patent document 1 has the above problems.

  Patent Document 2 is a ground installation support column 1 having a first opening 2a at a lower portion of a support column body 2 in which a support shaft extends in the vertical direction, and a reinforcing member 10 is provided around the first opening 2a. The reinforcing member 10 includes a second opening 100 corresponding to the first opening 2a and reinforcing portions 101 and 102 formed on the outer periphery of the second opening 100. The second opening Reference numeral 100 discloses a support column in which an upper end portion and a lower end portion are formed in an arc-like oval hole, and the reinforcing portions 101 and 102 are also formed in an arc-like oval shape in the upper end portion and the lower end portion.

  In Patent Document 2, a rib is welded to the entire outer periphery of an inspection port opening provided in the middle of a column pipe. It is considered to improve the strength by reinforcing the outer periphery of the opening with the welded rib. In addition, the rib along the outer periphery has a certain protrusion, but is not convex as shown in FIG. 11 and is a protrusion along the curved surface of the column tube, which causes poor visual appearance and danger to pedestrians. It is decreasing.

However, Patent Document 2 also, like Patent Document 1, is merely improving the strength by the outer peripheral rib of the opening, and the outer peripheral rib is in a floating state. In other words, the outer periphery of the opening is still in a floating state in the support column. For this reason, the technique of Patent Document 2 also has a possibility that the durability against the maximum stress of the stress 2 may be insufficient in the case of a support attached with an electronic device in which a load such as vibration or wind pressure is increased. there were. Of course, there is a possibility of damage from the opening due to accumulation of normal stress in the opening due to application of normal stress for a long period of time.
As described above, Patent Document 2 also has a problem that the durability to the maximum stress and the normal stress may be insufficient similarly to Patent Document 1.

  As described above, the following problems remain even in the related art that attempts to reduce the protrusion of the inspection port as in Patent Documents 1 and 2.

  (Problem 1) It is difficult to exhibit sufficient durability for both normal stress and maximum stress.

  (Problem 2) Since the end face of the opening is in a floating state, there is a possibility that problems such as bending from the opening due to the maximum stress may occur.

  In view of the above problems, the present invention has an object to provide a column inspection port unit that has strength and durability to both normal stress and maximum stress while reducing protrusion from a column column tube. To do.

In view of the above problems, the inspection port unit of the present invention is an inspection port unit attached to an opening for an inspection port provided in a support pipe,
A first lateral member insertable from the first lateral end of the opening into the internal space of the column tube;
A second lateral member that can be inserted into the internal space from the second lateral end opposite to the first lateral end;
A connecting member that connects the first transverse member and the second transverse member,
Each of the first transverse member, the second transverse member and the connecting member is plate-shaped,
When the inspection port unit is attached to the opening, the connecting member is located in the inner space of the support pipe.

  The inspection port unit of the support column according to the present invention can form an inspection port only by being inserted as a member on the unit into an opening opened in the support tube and welded. In particular, since the inspection port can be formed with a small number of steps and a simple process including the electric wiring device required for the inspection port, there is an advantage that the inspection port can be easily formed on the support column.

  Moreover, since the internal space provided with the electrical wiring equipment that is the basis of the inspection port can be formed by an integral structure of the inspection port unit, it is suitable for mass production.

  The inspection port unit includes a side plate member that enters the internal space of the column pipe from the outer periphery of the opening portion after being joined to the opening portion, and a connection plate that connects the side plate members. As a result, the outer periphery of the opening does not float. By connecting the side plates that are extensions of the outer periphery of the opening, the connection plate is extremely strong against the maximum stress and normal stress applied to the outer periphery of the opening.

  As a result, the inspection port unit of the present invention can achieve high strength and durability against both normal stress and maximum stress even when the support unit is provided with an electronic device. As a result, a merit can be produced in the production cost and maintenance cost of the support itself.

It is a whole figure of the support in Embodiment 1 of the present invention. 1 is an overall view of a support in Embodiment 1. FIG. It is a photograph which shows the state by which the actual support | pillar is standing. It is a perspective view of the inspection port unit and its periphery in Embodiment 1 of the present invention. It is sectional drawing of the inspection port unit in Embodiment 1 of this invention. It is sectional drawing with which the inspection port unit in Embodiment 1 of this invention was mounted | worn. It is sectional drawing of an example of the inspection port unit in Embodiment 1 of this invention. It is sectional drawing of the inspection port unit in Embodiment 1 of this invention. It is a perspective view of the inspection port unit and its periphery in Embodiment 1 of the present invention. It is a perspective view of inspection port vicinity before and after closing the lid | cover in Embodiment 1 of this invention. It is a perspective view of the inspection port in a prior art.

The inspection port unit according to the first aspect of the present invention is an inspection port unit attached to an opening for an inspection port provided in a support pipe,
A first lateral member insertable from the first lateral end of the opening into the internal space of the column tube;
A second lateral member that can be inserted into the internal space from the second lateral end opposite to the first lateral end;
A connecting member that connects the first transverse member and the second transverse member,
Each of the first transverse member, the second transverse member and the connecting member is plate-shaped,
When the inspection port unit is attached to the opening, the connecting member is located in the inner space of the support pipe.

  With this configuration, the elements of the inspection port unit are continuous with the outer periphery of the column pipe in the opening for the inspection port formed by hollowing out a part of the surface of the column pipe. By this continuation, the opening can have strength and durability that can cope with normal stress and maximum stress.

  In the inspection port unit according to the second aspect of the present invention, in addition to the first invention, the rear end of the first horizontal member, the rear end of the second horizontal member, and the connection member are attached to the opening by the inspection port unit. When separated from the inner circumference of the internal space.

  With this configuration, even when the manufacturing accuracy of the first horizontal member and the second horizontal member is fluctuated, it is difficult to cause work difficulties in the connection between the first horizontal member and the opening and the connection between the second horizontal member and the opening. .

  In the inspection port unit according to the third aspect of the present invention, in addition to the first or second aspect, the connecting member connects the rear end of the first horizontal member and the rear end of the second horizontal member. To do.

  With this configuration, the inspection port unit can form a connected structure as a whole. With this structure, durability against normal stress and maximum stress of the opening constituting the inspection port can be improved.

  In the inspection port unit according to the fourth aspect of the present invention, in addition to the third aspect, at least one of a connection portion between the connection member and the first horizontal member, and a connection portion between the connection member and the second horizontal member. One has at least a part of a tapered shape and a curved surface shape.

  With this configuration, the inspection port unit easily fits in the inner periphery of the support pipe.

  In the inspection port unit according to the fifth aspect of the present invention, in addition to the fourth aspect, each of the tapered shape and the curved surface shape is along the inner periphery of the support pipe.

  With this configuration, the inspection port unit is likely to be accommodated inside the support pipe.

  In the inspection port unit according to the sixth aspect of the present invention, in addition to any of the first to fifth aspects, the first horizontal member, the second horizontal member, and the connecting member form a work space, and the work space Can mount electrical wiring equipment.

  With this configuration, the purpose as an inspection port can be achieved.

  In the inspection port unit according to the seventh aspect of the present invention, in addition to the sixth aspect, the work space enables work related to the electrical wiring device.

  With this configuration, the inspection port unit enables work on the electrical wiring device that is the purpose of the inspection port. In particular, it is possible to achieve continuity with the column pipe while constituting the work space, so that both structural reinforcement and work students can be achieved.

  In the inspection port unit according to the eighth invention of the present invention, in addition to any of the first to seventh inventions, an upper connection member that connects the upper part of the first horizontal member and the upper part of the second horizontal member; A lower connecting member connecting the lower portion of the first horizontal member and the lower portion of the second horizontal member;

  With this configuration, the inspection port unit can further improve the strength against stress of the inspection port.

  In the inspection port unit according to the ninth aspect of the present invention, in addition to the eighth aspect, each of the upper connecting member and the lower connecting member corresponds to the respective curved surfaces of the upper portion and the lower portion of the opening.

  With this configuration, the inspection port unit is connected to the opening in four directions. As a result, the strength and durability against the stress of the opening are further improved.

  In the inspection port unit according to the tenth invention of the present invention, in addition to the ninth invention, each of the upper part and the lower part of the opening has an elliptical curved surface which is a part of an ellipse, and the upper connecting member and Each of the lower connection members has an elliptical curved surface.

  With this configuration, the inspection port unit is connected to the opening in four directions. As a result, the strength and durability against the stress of the opening are further improved.

  In addition to any one of the first to tenth inventions, the inspection port unit according to the eleventh invention of the present invention further includes a lid that can close the work space and the opening.

  With this configuration, the inspection port unit can configure an inspection port.

  In the inspection port unit according to the twelfth aspect of the present invention, in addition to the eleventh aspect, the lid corresponds to the curved surface shape of the outer periphery of the column pipe.

  With this configuration, the lid is fitted to the outer periphery of the column pipe.

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

  (Embodiment 1)

(Overall overview of the support)
First, the outline of the support will be described. The column is used in various applications such as street lights, traffic lights, traffic signs, radio towers, base stations such as mobile phones, and installation poles for speakers and security cameras. FIG. 1 is an overall view of a support in Embodiment 1 of the present invention.

  The support | pillar 10 is provided with the support | pillar pipe | tube 11, the support | pillar fixing member 1, and the illuminating device 12 as needed. The support pipe 11 is a tubular member, and is formed by metal, alloy, resin, or the like or a combination thereof. The column tube 11 may be considered as a so-called pole-shaped member. As described above, the column 10 is intended to display guidance on a passerby or a traveling transportation vehicle such as a street light, a traffic light, a traffic sign, etc., so a signal facility, a lighting device, a display board, etc. It is attached. In FIG. 1, the support | pillar 10 which attached the illuminating device 12 is shown as an example.

  The strut pipe 11 may be a ground (not only the bare ground, but also a paved road, a paved sidewalk, a place covered with concrete, or an indoor floor surface depending on the strut fixing member 1. The meaning of the ground includes these.) By being fixed, the column tube 11 is installed on the ground, and can achieve application purposes such as street lamps, light emitting lamps, radio towers, traffic lights, and the like. A column 10 is configured by the column tube 11, the column fixing member 1, and the illumination device 12 as an example.

  FIG. 2 is an overall view of the support column in the first embodiment. The column shown in FIG. 2 also has a lighting device 12 attached to the top of the column tube 11 as in FIG. In this manner, the column 10 can achieve a desired purpose (e.g., light emission, signal display, transmission / reception of radio waves) by attaching the illumination device 12 to the column tube 11.

  The column 10 to which the electronic device such as the lighting device 12 is attached receives both the stress due to vibration and pressure applied to the column tube 11 and the stress due to vibration and wind pressure applied to the electronic device. Moreover, since the support | pillar 10 attaches an electronic device, it is necessary to store the electrical wiring apparatus apparatus required for an electronic device in the support | pillar pipe | tube 11 inside. This electric wiring device is mounted inside a so-called inspection port for operation and repair, and needs to be operated and repaired through the inspection port.

  FIG. 3 is a photograph showing a state where an actual support column is erected. As shown in the photograph of FIG. 3, a column 10 as an illumination tower is erected on the road. The column 10 has a lighting device 15 attached as an electronic device. The lighting device 15 has a large weight. This is because it has a light emitting unit, various electronic devices related to the light emitting unit, a housing, and the like. Due to this weight, in addition to vibration and wind pressure applied only to the support tube 11, vibration and wind pressure applied to the lighting device 15 that is an electronic device are also applied to the support tube 11. High normal stress is generated in the column tube 11 due to vibration and wind pressure applied to the heavy illumination device 15. Of course, the maximum stress is also applied more than when only the support tube 11 or a light member is attached.

  Further, due to the nature of the lighting device 15, the column tube 11 needs to be bent at the bent portion 111 so that the road can be easily illuminated when it is attached to the tip of the column tube 11. In FIG. 3, the bent portion 111 is shown. Due to this bending, normal stress due to vibration and wind pressure continuously applied to the entire column tube 11 tends to increase in the column tube 11. Of course, the maximum stress due to an instantaneous gust or impact tends to increase due to the bent portion 111.

  The column pipe 11 includes an inspection port 20. Since the inspection port 20 is used for maintenance and replacement of the electrical wiring equipment stored inside, the inspection port 20 is provided in the work range of the operator. For this reason, the inspection port 20 is provided below the support pipe 11. This is shown in FIG.

  As described above, a high normal stress and a maximum stress are applied to the column tube 11 by attaching an electronic device having a weight and volume such as the lighting device 15. Due to the high normal stress and the maximum stress applied to the column tube 11, the inspection port 20 with the opening may be damaged or bent.

  This invention implement | achieves the inspection port unit which comprises the inspection port required for the operation | work of the maintenance and repair of such an electrical wiring instrument.

(Overview of inspection port unit)
FIG. 4 is a perspective view of the inspection port unit and its periphery according to Embodiment 1 of the present invention. FIG. 5 is a cross-sectional view of the inspection port unit according to Embodiment 1 of the present invention.
The support pipe 11 is provided with an inspection port 20 at a height at which an operator can easily work. The inspection port 20 is formed by providing an opening 21 in the column tube 11. The inspection port unit 30 is inserted into the internal space of the column tube 11 through the opening 21. By this insertion, the inspection port unit 30 is attached to the opening 21 of the column tube 11. In attachment, the inspection port unit 30 and the column tube 11 are attached by welding or the like at the overlapping portion.

  The inspection port unit 30 is inserted into the internal space of the column tube 11 from the first horizontal member 31 inserted into the internal space of the column tube 11 from the first horizontal end portion 22 of the opening 21 and the second horizontal end portion 23. And a connecting member 33 that connects the first transverse member 31 and the second transverse member 32 to each other.

  The second lateral end 23 is opposite to the first lateral end 22 in the opening 21. Each of the first lateral end portion 22 and the second lateral end portion 23 is an end portion that occurs on the lateral side of the column tube 11 in the opening 21.

  Each of the 1st horizontal member 31, the 2nd horizontal member 32, and the connection member 33 is plate shape. Each of the first transverse member 31, the second transverse member 32, and the connecting member 33, which are plate-like members, is combined as shown in FIG. Each member is connected by this combination and fixed in a shape as shown in FIG.

  As shown in FIG. 4, the first lateral member 31, the second lateral member 32, and the connecting member 33 are combined and inserted into the internal space of the column tube 11 from the opening 21. By being inserted and attached to the column pipe 11, the inspection port unit 30 is built inside the inspection port 20. In this state, the connecting member 33 is located in the inner space of the column tube 11.

  FIG. 5 shows a state in which the inspection port unit 30 of FIG. As shown in FIG. 5, the inspection port unit 30 is connected and fixed after the first lateral member 31, the second lateral member 32, and the connection member 33 are combined. From the cross section, it has a substantially U shape. In this combined state, it is inserted into the internal space of the column tube 11 from the opening 21 and attached. FIG. 5 shows a state in which the column pipe 11 is attached to the internal space as a cross section.

  The inspection port unit 30 is connected by welding, adhesion, fitting, attachment, or the like at the contact portion between the first lateral member 31 and the first lateral end 22. Similarly, the contact portion between the second lateral member 32 and the second lateral end 23 is connected by welding, adhesion, fitting, attachment, or the like. By this connection, the inspection port unit 30 is fixed to the inspection port 20.

  By this fixing, the inside of the inspection port 20 becomes a state constituted by the inspection port unit 30.

  An opening 21 is required for the inspection port 20 on the surface of the column tube 11. The opening 21 is formed by cutting the surface of the column tube 11. For this reason, as explained in the prior art and the like, the normal stress and the maximum stress applied to the support pipe 11 are concentrated in the opening 21, which leads to bending in the opening 21 where there is no outer periphery. .

  However, the inspection port unit 30 in the first embodiment is inserted and fixed from the opening 21 into the support pipe. At this time, first, the first lateral member 31 connects the support pipe 11 and the inspection port unit 30 through the opening 21 in which the surface of the support pipe 11 is cut off by connection with the first lateral end 22. Similarly, the 2nd horizontal member 32 connects the support | pillar pipe | tube 11 and the inspection port unit 30 by the opening part 21 by which the surface of the support | pillar pipe | tube 11 was cut off by the connection with the 2nd horizontal end part 23. FIG.

  Further, the connection member 33 connects the first lateral member 31 and the second lateral member 32. With this connection, in the opening portion 21 where the surface of the column tube 11 is cut off, the first lateral end portion 22 and the second lateral end portion 23 which are the end portions of the opening portion 21 are connected to the first lateral member 31 and the connecting member. 33 and the second transverse member 32 are connected by a path.

  By being connected in this order, the opening 21 is not in a floating state but is in a state of being connected to the column tube 11. Since the inspection port unit 30 can realize this form, the opening 21 can cope with the normal stress and the maximum stress applied to the column pipe 11. As a result, it is possible to cope with the normal stress and the maximum stress that tend to concentrate on the opening 21 (the inspection port 20) by the series connection with the inspection port unit 30.

(Distance from inner circumference)
The rear end of the first lateral member 31, the rear end of the second lateral member 32, and the connecting member 33 are separated from the inner periphery of the internal space when the inspection port unit 30 is attached to the opening 21. FIG. 5 shows this separated state. That is, as shown in FIG. 5, in the inspection port unit 30 attached to the opening 21, all of the members are separated from the inner periphery of the support pipe 11 at the rear end of the internal space of the support pipe 11. All of the rear end of the first lateral member 31, the rear end of the second lateral member 32, and the connecting member 33 that are close to the inner periphery are in a state separated from the inner periphery (not in contact).

  With this configuration, when the inspection port unit 30 is inserted into the opening 21 and attached, it does not hit the inner periphery of the column tube 11. By not colliding, there is no hindrance to the connection to the opening 21 due to a difference in assembly accuracy of the inspection port unit 30 or a difference in length between the first lateral member 31 and the second lateral member 32 in manufacturing. If there is a difference in the lengths of the first lateral member 31 and the second lateral member 32 for manufacturing reasons, and the rear ends of these are in contact with the inner periphery, they protrude from the opening 21. The protrusion amount of the 1st horizontal member 31 and the 2nd horizontal member 32 will differ. If they are different, it will naturally interfere with the connection work such as welding. In addition, a problem occurs when the lid of the opening 21 is closed.

  As shown in FIG. 5, if the rear end or the like of the first lateral member 31 is not in contact with the inner periphery of the column tube 11, even if there is such an assembly error or length error, The protrusion amounts of the first lateral member 31 and the second lateral member 32 can be matched. Matching the amount of protrusion makes welding and other operations easy and accurate, and does not interfere with the opening and closing of the lid.

  As shown in FIGS. 4 and 5, the connection member 33 connects the vicinity of the rear end of the first lateral member 31 and the vicinity of the rear end of the second lateral member 32. With this connection, the inspection port unit 30 can form a work space 35 when attached to the opening 21.

(Shape of connection part)
At least one of the connection portion 36 between the connection member 33 and the first lateral member 31 and the connection portion 37 between the connection member 33 and the second lateral member 32 may have at least a part of a tapered shape and a curved surface shape. Is preferred.

  FIG. 6 is a cross-sectional view in which the inspection port unit according to Embodiment 1 of the present invention is mounted. At least one of the connecting portion 36 and the connecting portion 37 is not substantially vertical as shown in FIG. 6, and may have a tapered shape or a curved surface shape.

  FIG. 7 is a cross-sectional view of an example of the inspection port unit according to Embodiment 1 of the present invention. FIG. 7 shows a state where each of the connection portion 36 and the connection portion 37 has a tapered shape. Such a tapered shape is a shape along the tangential direction of the inner periphery of the support pipe. By being along the tangential direction of the inner periphery, it is easy to cause a separation from the inner periphery of the column tube 11.

  Moreover, not only a taper shape but a curved surface shape may be sufficient. Also in this case, the connecting portions 36 and 37 are along the inner periphery of the column tube 11.

(Mounting of electrical wiring equipment)
The inspection port unit 30 can form a work space 35 by a combination of the first lateral member 31, the second lateral member 32, and the connection member 33. FIG. 8 is a cross-sectional view of the inspection port unit according to Embodiment 1 of the present invention. The work space 35 is a space surrounded by the first lateral member 31, the second lateral member 32, and the connection member.

  In the work space 35, an electrical wiring device 40 (for example, a power source of an electronic device attached to the column tube 11, a breaker, a wiring switch, etc.) can be mounted. An electrical wiring device 40 may be mounted inside the work space 35. Alternatively, the electrical wiring device 40 may be mounted on the connection member 33 that forms the work space 35. Alternatively, the electrical wiring device 40 may be mounted on the first lateral member 31 or the second lateral member 32 that forms the work space 35.

  In FIG. 8, the electrical wiring device 40 is mounted on the connection member 33. By opening a lid to be described later and exposing the work space 35, an operator can perform work related to the electrical wiring device 40 in the work space 35. For example, the operator can execute switching of the wiring switch of the electrical wiring device 40, replacement of electrical components and the like of the electrical wiring device 40 in the work space 35.

  Here, as shown in FIG. 8, the electrical wiring device 40 is mounted on the connection member 33, so that the electrical wiring device 40 is fixed in the back of the work space 35. In this state, the worker can easily work on the electrical wiring device 40.

  Further, since the electrical wiring device 40 is mounted on the first lateral member 31, the second lateral member 32, or the connection member 33, the electrical wiring device 40 receives a merit due to the strength due to the combination of the inspection port units 30. As described above, the inspection port unit 30 has a structure having strong strength and durability due to the connection between the first lateral member 31, the second lateral member 32, the connection member 33, and the outer periphery of the opening 21 of the column tube 11. Have a body. By mounting the electrical wiring device 40 on this structure, the electrical wiring device 40 provided inside the column tube 11 can have durability and strength against external impact and pressure.

  Further, in the conventional inspection port, the electrical wiring device is directly mounted on the inner periphery of the column tube 11. In this case, when a strong impact or maximum stress is applied to the column tube 11, the impact or maximum stress may be transmitted to the electrical wiring device, causing a problem such as a failure.

  On the other hand, the inspection port unit 30 is mounted on the electrical wiring device 40 on the connection member 33, the first lateral member 31, or the like that forms the work space 35 separated from the inner periphery of the support pipe 11. For this reason, the electrical wiring device 40 is mounted separately from the inner periphery of the column tube 11. As a result, even when an impact or maximum stress is applied to the support tube 11, these are transmitted to the electrical wiring device 40 in one cushion. By this transmission, it becomes easy to prevent the occurrence of a failure of the electrical wiring device 40.

(Upper connection member, lower connection member)
FIG. 9 is a perspective view of the inspection port unit and its periphery according to Embodiment 1 of the present invention.

  As described above, the inspection port unit 30 is mounted by being inserted into the opening 21 of the inspection port 20. The inspection port unit 30 includes a first lateral member 31, a second lateral member 32, and a connection member 33 as basic elements. At this time, the opening 21 has a shape in which a part of the surface of the column tube 11 is hollowed out, as shown in FIG. For this reason, the opening 21 has upper and lower end faces along the column tube 11.

  It is also preferable that the inspection port unit 30 further includes an upper connection member 37 that connects the upper portion of the first lateral member 31 and the upper portion of the second lateral member 32 along the upper end surface. The inspection port unit 30 preferably further includes a lower connection member 38 that connects the lower portion of the first horizontal member 31 and the lower portion of the second horizontal member 32 along the lower end surface.

  By providing the upper connection member 38 and the lower connection member 39, the inspection port unit 30 is connected at many portions of the end face of the opening 21. The connection is realized by welding, joining, bonding, fitting, locking or the like. At this time, the upper connecting member 38 is connected to the upper end face of the opening 21. The lower connection member 39 is connected to the lower end surface of the opening 21.

  With these connections, the strength of attaching the inspection port unit 30 to the opening 21 is further improved. By this improvement, the inspection port unit 30 can enhance the durability against the normal stress and the maximum stress of the inspection port 20 itself.

  Further, it is preferable that the upper connecting member 38 has a shape corresponding to the curved surface of the upper end surface of the opening 21. Similarly, the lower connecting member 39 preferably has a shape corresponding to the curved surface of the lower end surface of the opening 21.

  For example, the upper end surface of the opening 21 has an elliptic curved surface that is a part of an ellipse. In this case, it is preferable that the upper connecting member 38 has an elliptic curved surface corresponding to the elliptic curved surface. Similarly, the lower end surface of the opening 21 has an elliptic curved surface that is a part of an ellipse. In this case, the lower connecting member 39 preferably has an elliptic curved surface corresponding to the elliptic curved surface.

  Thus, since each of the upper connecting member 38 and the lower connecting member 39 corresponds to the end face shape of the opening 21, the connection strength of the inspection port unit 30 to the opening 21 can be improved. .

(lid)
The inspection port unit 30 further includes a lid 50 that can close the work space 36 and the opening 21.

  The inspection port unit 30 is inserted into the opening 21 and fixed. By this fixing, the work space 35 formed by the inspection port unit 30 is connected to the outside of the column pipe 11. In other words, instead of the opening 21, the exit of the work space 35 becomes the opening of the inspection port 20.

  The lid 50 closes the work space 35 and the opening 21. By closing, it is possible to protect the work space 35 and prevent mischief of the internal electrical wiring device 40.

  FIG. 10 is a perspective view of the vicinity of the inspection port before and after closing the lid in Embodiment 1 of the present invention. The left side of FIG. 10 shows a state where the inspection port unit 30 is attached to the inspection port 20. In addition, a state before the lid 50 is attached is shown.

  The right side of FIG. 10 shows a state where the lid 50 is attached to the opening 21 in the state of the left side of FIG. The lid 50 corresponds to the outer circumference counting of the opening 21. That is, since the opening 21 is a part of the cylindrical column tube 11, it is also preferable that the lid 50 has a curved surface corresponding to the curved surface shape of the outer periphery of the column tube 11. It is also preferable to have a shape corresponding to the shape of the opening 21. Accordingly, the lid 50 can reliably cover the opening 21 and protect the work space 35.

  As described above, the inspection port unit 30 in the first embodiment integrates the end surface of the opening 21 provided for the inspection port 20 in the support pipe 11 with the outer periphery of the support pipe 11. By integrating, it is possible to increase the durability of the inspection port 20 that must be provided with the opening 21 to normal stress and maximum stress. Moreover, the structure to make it unite can mount the electrical wiring apparatus 40 which is the objective of the inspection port 20, and can improve workability | operativity in the inspection port 20. FIG.

  (Embodiment 2)

  Next, a second embodiment will be described.

(Type of strut tube)
The column pipe 11 is an element constituting the column 10. That is, the support tube 11 is used for various purposes depending on the purpose.

  For example, the column tube 11 is any one of a light emitting device pole, a traffic light pole, a traffic sign pole, a radio tower pole, a base station pole, a speaker pole, and a security camera pole. Of course, these are examples of the use of the column tube 11 and are not limited thereto.

  The support column 10 to which the electronic device is attached is realized by using the support tube 11 for these applications.

(Support)
The inspection port unit 30 described in the first embodiment is used for the inspection port 20 of the support pipe 11. For this reason, the column tube 11, the opening 21 for the inspection port 20 provided in the column tube 11, the inspection port unit 30 inserted and attached to the opening 21, the lighting device, the signal device, the electronic sign, etc. The post 10 is configured by including the electronic device.

  The column 10 supports an electronic device attached above the column tube 11. This electronic device is operated by electric wiring arranged inside the column tube 11. The inspection port unit 30 can mount a part of the electrical wiring or an electrical wiring device 40 related to the electrical wiring. By this mounting, necessary inspection, maintenance, and repair of the column 10 can be performed.

  In addition, the inspection port unit demonstrated in Embodiment 1-2 is an example explaining the meaning of this invention, and includes the deformation | transformation and remodeling in the range which does not deviate from the meaning of this invention.

DESCRIPTION OF SYMBOLS 10 support | pillar 11 support | pillar pipe 12 illuminating device 20 inspection port 21 opening part 22 1st horizontal end part 23 2nd horizontal end part 30 inspection port unit 31 1st horizontal member 32 2nd horizontal member 33 connection member 35 working space 36 connection part 37 Connecting portion 38 Upper connecting member 39 Lower connecting member 40 Electrical wiring device 50 Lid 100 Strut tube 101 Hollow 102 Inspection port 103 Opening portion 104 Protruding portion 105 Lid

Claims (14)

An inspection port unit that is attached to an opening for an inspection port provided in a support pipe,
A first lateral member insertable from the first lateral end of the opening into the internal space of the column tube;
A second lateral member that can be inserted into the internal space from a second lateral end opposite to the first lateral end;
A connecting member for connecting the first transverse member and the second transverse member,
Each of the first transverse member, the second transverse member, and the connecting member is plate-shaped,
When the inspection port unit is attached to the opening, the connection member is an inspection port unit located in the inner space of the support pipe.   The rear end of the first horizontal member, the rear end of the second horizontal member, and the connection member are separated from the inner periphery of the internal space when the inspection port unit is attached to the opening. Item 1. The inspection port unit according to item 1.   The inspection port unit according to claim 1 or 2, wherein the connection member connects a rear end of the first horizontal member and a rear end of the second horizontal member.   4. At least one of a connection portion between the connection member and the first lateral member and a connection portion between the connection member and the second lateral member has at least a part of a tapered shape and a curved surface shape. Inspection port unit as described.   The inspection port unit according to claim 4, wherein each of the tapered shape and the curved surface shape is along an inner periphery of the support pipe. The first transverse member, the second transverse member and the connection member form a work space,
The inspection port unit according to claim 1, wherein an electrical wiring device can be mounted in the work space.   The inspection port unit according to claim 6, wherein the work space enables work related to the electrical wiring device. An upper connecting member connecting the upper portion of the first lateral member and the upper portion of the second lateral member;
The inspection port unit according to claim 1, further comprising a lower connection member that connects a lower portion of the first horizontal member and a lower portion of the second horizontal member.   The inspection port unit according to claim 8, wherein each of the upper connection member and the lower connection member corresponds to a curved surface of each of an upper portion and a lower portion of the opening. Each of the upper and lower portions of the opening has an elliptical curved surface that is a part of an ellipse,
The inspection port unit according to claim 9, wherein each of the upper connection member and the lower connection member has the elliptical curved surface.   The inspection port unit according to claim 1, further comprising a lid capable of closing the work space and the opening.   The inspection port unit according to claim 11, wherein the lid corresponds to a curved shape of an outer periphery of the support pipe.   The said support tube is any one of the pole for light-emitting devices, a traffic light pole, a traffic sign pole, a radio tower pole, a base station pole, a speaker pole, and a security camera pole. Inspection port unit. The inspection port unit according to any one of claims 1 to 13,
A strut tube having an opening into which the inspection port unit can be inserted;
And an electronic device electrically connected to the electrical wiring device provided in the inspection port unit.