JP3216549U - Insulation lid locking bracket - Google Patents

Abstract

[PROBLEMS] To provide a heat insulating lid mounting means provided on a manhole receiving frame for blocking heat and odor from a manhole, which does not require a complicated structure, has excellent performance, and is excellent in storage and transportability. Provide a locking bracket. SOLUTION: A suspension fitting 20, a deviation prevention fitting 30, a fixing fitting 40, and a pin member 50 are provided, and the suspension fitting is attached to a protrusion provided on a mounting seat of a receiving frame outside the upper end of a main body portion 21 in the vertical direction. The support portion 22 having the projection receiving hole 23 is provided, and the lower portion of the hanging bracket is freely rotatable about the axis of the pin member provided vertically and horizontally in the manhole radial direction on the fixing bracket fixed to the heat insulating lid. The departure prevention metal fitting is formed on the outside of the suspension fitting so that the departure prevention contact portion 32 of the departure prevention fitting is located at a lower side with an appropriate distance from the support portion of the suspension fitting, and the lower portion of the pin member A heat insulating lid locking metal fitting supported by a fixing metal fitting so as to be rotatable about an axis and disposed so as to sandwich a mounting seat of a receiving frame between a support part and a deviation prevention contact part. . [Selection] Figure 3

Description

  The present invention relates to a means for attaching a heat insulating lid for blocking heat and odor from a manhole in a sewer buried under a road surface.

Hot water accumulates in the sewer pipes buried under the road surface due to domestic wastewater and geothermal heat, and hot air is released to the ground from manholes installed in the sewer. Due to the hot air, the snow on the manhole cover melted into a hole in the snowy area, and the difference in level caused obstacles in the passage of vehicles and the like.
In response to this situation, the heat insulation deodorant sheet of the manhole is installed as a heat insulation lid that shields hot air and odors by a cover material having heat insulation properties on the manhole shaft by the inventor's lid. It is disclosed (see Patent Document 1). As for the means for attaching the heat insulating lid, an example of a receiving frame provided with a mounting seat to which various instruments used for ascending and descending into the underground structure are provided (see Patent Document 2), and attached to support the heat insulating lid. An example in which an arm is provided (see Patent Document 3) is disclosed.

Japanese Patent No. 4036293 (FIG. 1) Utility Model Registration No. 2525650 (FIG. 4) JP2012-172435A (FIG. 3)

The heat insulation deodorization sheet of the manhole which is the invention of Patent Document 1 is a thin, soft and airtight sheet, and is provided with a body portion in an inverted cone or pyramid shape downward from the ring-shaped mounting portion, and from the top of the lower end of the body portion A valve portion for allowing rainwater to flow out is provided below, and the mounting portion is fixed between the lid of the manhole and the receiving frame.
Patent Document 2 includes mounting seats for mounting various instruments at a plurality of positions along the inner periphery of the manhole cover receiving frame, and the mounting seat can be chucked to cut the fitting surface of the receiving frame. It is assumed that it is composed of an arcuate and flat shelf, and a protrusion-like locking portion that is formed on the upper portion of the shelf at the approximate center of the string and can engage the instrument.
Patent Document 3 discloses an inverted truncated cone-shaped steel plate substrate, a steel plate closing plate that allows a hole in the center of the substrate to be allowed to pass through intruding water and earth and sand, and an outer peripheral portion of the substrate and mounting of a receiving frame A valve that is provided with a plurality of steel mounting arms between the protrusion-shaped locking portions of the seat, and has a body portion in an inverted conical shape downward from the outer periphery of the substrate, and drains rainwater downward from the top of the lower end of the body portion This is a series of parts.

In general, the insulation cover is attached to the receiving frame or shaft by using various fastening brackets, or mounted on a part of the receiving frame that is likely to serve as a mounting seat, in response to pressure such as atmospheric pressure or water pressure from the lower part of the manhole. A method such as pressing with a manhole cover is used.
In the attachment method of Patent Document 1, a circular ring-shaped attachment portion 11 is placed on the placement portion of the receiving frame 3, and the lid 4 is placed on the attachment portion and fixed. Since the lid 4 is placed on the attachment portion 11, it is desirable to make the attachment portion 11 as thin as possible.
The attachment method of Patent Document 3 can be applied to a case where an attachment seat having a protruding locking portion is provided on the inner periphery of a manhole receiving frame as shown in Patent Document 2 as a representative example. A plurality of steel mounting arms 13 are provided on the outer periphery of the substrate 11, and the mounting holes 13 a at the tip of the mounting arms 13 are fitted into the locking portions 3 b of the receiving frame 3, thereby fixing the mounting seat 3 a of the receiving frame 3. It is going to be done. In the present invention, since the steel plate substrate 11 and the capping plate 12 are provided to prevent a person from falling, the attachment hole at the tip of the attachment arm is less likely to deviate from the locking portion due to its weight. However, when the joint surface between the manhole cover and the receiving frame is of a vertical type, a method of pressing and fixing with the manhole cover is possible as in the example of Patent Document 1, but the joint surface between the cover and the receiving frame is In the case of the inclined type, there is a gap between the upper end of the latching portion of the receiving frame 3 and the lower surface of the lid, and it cannot be pressed by the manhole lid. There is a fear. The present invention provides means for attaching a heat insulating lid that solves these problems.

In order to solve the above-mentioned problems, the present invention is a fitting for mounting means for locking a heat insulating lid provided on the lower side of a manhole cover to a manhole receiving frame, and includes a hanging bracket, a deviation prevention bracket, a fixing bracket, and a pin member. The hanging bracket is mounted on the protrusion provided on the mounting seat of the receiving frame on the outer side of the upper end of the main body in the vertical direction when viewed from the outer peripheral radial direction outside the manhole center in the mounting state on the manhole receiving frame. A support portion having a projection receiving hole to be formed and having a lower surface formed by a substantially horizontal plane;
The lower part of the hanging metal fitting is supported by the fixing metal fitting fixed to the heat insulating lid so as to be rotatable about the axis of the pin member provided vertically and horizontally in the manhole radial direction,
The departure prevention metal fitting is on the outside (the inner wall side of the receiving frame) of the suspension fitting, and the departure prevention contact portion at the upper end of the departure prevention fitting is at a lower side with an appropriate distance from the lower surface of the support portion of the suspension fitting. Formed, the lower part of the deviation prevention metal fitting is supported by the fixing metal fitting so as to be rotatable around the axis of the pin member,
A heat insulating lid locking metal fitting is provided so that the mounting seat of the receiving frame is sandwiched between the lower surface of the support portion and the deviation preventing contact portion.

The manhole heat insulating cover can be reliably supported by the heat insulating cover locking metal fitting of the present invention. The heat insulation lid using the heat insulation lid locking metal fitting of the present invention discharges intrusion such as rainwater entering from the manhole cover to the lower sewer, and the heat and odor in the sewer are transmitted to the upper manhole cover side. It is possible to provide a heat-insulating lid that blocks the above.
In addition, the heat insulating lid locking device of the present invention is provided with a hanging metal fitting and a deviation prevention metal fitting, which can be easily installed without using tools, etc., and can be attached to the receiving frame from the lower part of the manhole in response to pressure such as atmospheric pressure or water pressure. It is possible to reliably prevent the deviation. Moreover, since it can be raised and lowered and is foldable, it is advantageous for transportation and storage.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view of Example 1 which shows the state which mounted | wore the heat insulation lid | cover with the heat insulation lid latching fitting of this invention in a partial cross section. It is a top view of FIG. It is a perspective view explaining a heat insulation lid latching metal fitting. It is explanatory drawing which shows a use condition. It is explanatory drawing which shows the folded state. 6 is a front view of Example 2. FIG.

EMBODIMENT OF THE INVENTION The form for implementing this invention is demonstrated in detail using figures.
As shown in FIGS. 1 and 2, the device according to the present invention is installed from a receiving frame C to a shaft D under a lid B of a manhole A suspended on a sewer buried under a road surface. In the present invention, a device called a heat insulation lid including a heat insulation sheet, which discharges rainwater and other intrusions from the manhole cover downward and blocks the transmission of heat and odors from the sewer to the manhole cover side. It is.
The heat insulating lid locking metal fitting 2 of the present invention is an apparatus of a system that is attached to a plurality of locations near the outer periphery of the heat insulating lid 1 and is suspended and supported using an attachment portion of a manhole cover receiving frame.

As shown in FIGS. 1 and 2, the heat insulating lid locking device 2 of the present invention is attached using a mounting seat C <b> 1 provided in a manhole receiving frame C.
The receiving frame C of the manhole cover B is a cover frame for a round lid, and a mounting seat C1 for mounting various instruments projects in the center direction at a plurality of positions along the inner periphery. The mounting seat C1 includes a horizontal and flat shelf C2 and a protruding projection C3 having a horizontal cross section formed in a substantially rectangular shape at the top of the shelf.

  In the figure, the heat insulating deodorant sheet 10 of this example is a substantially inverted conical heat insulating lid having a circular outer periphery that closes the manhole shaft D, and is inverted downward from an inverted truncated cone-shaped steel plate substrate 11. A barrel portion 14 is provided in a conical shape, and a valve portion 15 is continuously provided downward from the top of the lower end of the barrel portion 14. The outer diameter of the substrate 11 is slightly smaller than the inner diameter of the shaft portion D. The body part 14 and the valve part 15 are made of a thin, soft and airtight sheet. The outer diameter of the seat body 14 is set to be slightly larger than the inner diameter of the receiving frame C and the shaft portion in order to reduce the gap between the receiving frame and the inner wall of the shaft portion and make the sealing effective. The valve portion 15 for discharging rainwater or the like is a combination of two sheets, both sides are fixed and the top and bottom are open.

  As means for attaching to the receiving frame C, a plurality of heat insulating lid locking fittings 2 of the present invention are provided on the substrate 11. The heat insulating lid locking fitting 2 is composed of a hanging fitting 20, a departure prevention fitting 30, a fixing fitting 40, and a pin member 50. Although this example shows an example of attachment at two locations opposed in the radial direction in the figure, this may be three or more, and does not limit the attachment location. The heat insulation lid locking metal fitting 2 is provided on the substrate 11 so as to be rotatable and undulating about a horizontal axis perpendicular to the radial direction, and the upper end of the heat insulation lid locking metal fitting 2 is attached to the attachment portion of the receiving frame C and fixed. Is done.

FIG. 3 is a perspective view of the heat insulating lid locking fitting 2 of the present invention.
The heat insulating lid locking metal fitting 2 of the present invention includes a hanging metal fitting 20, a departure prevention metal fitting 30, a fixing metal fitting 40, and a pin member 50. The hanging bracket 20 is mounted on the manhole receiving frame and viewed from the center of the manhole in the radial direction outside, in this example, on the outer side of the upper end of the main body portion 21 of the vertical strip-shaped plate material, the shelf C2 of the mounting seat C1 of the receiving frame C. A support portion 22 having a notch-like projection receiving hole 23 in which a projection C3 having a substantially rectangular horizontal cross section provided on the upper surface of the upper surface of the upper portion of the upper surface of the upper surface of the upper surface of the upper surface of the upper portion of the upper surface may be provided.
The lower bearing portion 24 of the main body portion 21 is rotatably supported around the pin member 50 that is horizontally provided perpendicularly to the fixing bracket 40 in the radial direction, and can be raised and lowered. The bearing portion 24 of this example is formed by providing a shaft hole in a side surface portion in which both sides of the lower portion of the main body portion 21 of the belt-like plate material are bent in the center direction to form a flange shape.

The fixing bracket 40 is a strip-shaped plate material in this example, and includes a horizontal base portion 41 and a bearing portion 42. The bearing portion 42 is formed by providing a shaft hole in a side surface portion obtained by bending the base portion vertically upward. The base part is fixed to the heat insulating lid in parallel by means of fastening means 43 such as screws.
The pin member 50 includes a hinge pin 51 and a fastening member 52. The hinge pin 51 is appropriately provided with screws or the like on both sides, and fastened with an appropriate fastening member 52 such as a nut from the outside of the mounted metal fitting.

  Next, the departure prevention metal fitting 30 is provided. In this example, the main body portion 31 is a plate-like member arranged on the outer side (the inner wall side of the receiving frame) of the hanging bracket 20, and both sides of the main body portion 31 are bent toward the center with the hanging bracket 20 sandwiched therebetween. A bearing portion 33 having a flange-like side surface portion and having a shaft hole at the lower portion of the side surface portion is provided. The bearing portion 33 is supported by the fixing bracket 40 so as to be rotatable about its axis by the pin member. The upper end of the main body portion 31 and the side surface portion serves as a later-described deviation preventing metal fitting contact portion 32.

FIG. 4 illustrates the operation of the heat insulating lid locking fitting 2. An example of the deodorizing sheet type heat insulating lid will be described.
The figure shows a mounting seat C1 provided with a shelf C2 and a projection C3 provided on the inner periphery of the receiving frame C.
(A) shows the initial stage which attached the heat insulation lid locking metal fitting 2 to the inner wall of the receiving frame C and the shaft part D, and the said heat insulation deodorization sheet | seat 10 is below the attachment seat C1 which protruded to the manhole center side. Press down to install. The heat insulating deodorant sheet can be deformed and can be flexibly accommodated. At this time, the upper parts of the hanging metal fitting 20 and the deviation preventing metal fitting 30 are in an inverted state above the mounting seat C1 as shown in the drawing.
(B) shows a situation in which the notch-shaped projection receiving hole 23 provided in the support portion 22 of the hanging metal fitting 20 is attached to the projection portion C3 by further pressing down the heat insulating deodorization sheet. At this time, the deviation preventing metal fitting 30 is located between the inner wall of the receiving frame C and the hanging metal fitting 20, and there is no problem.
(C) shows a state in which the projection receiving hole 23 is completely attached to the projection C3, and the lower surface of the support portion 22 is supported by contacting the shelf C2. Thus, the heat insulating deodorizing sheet is supported by the heat insulating lid locking fitting 2.
In this situation, the departure prevention metal fitting 30 falls to the inner wall side of the receiving frame around the pin member 50 due to its own weight and comes into contact with the inner wall. This is the state where the installation of the present apparatus is completed.

(D) shows a state in which the deodorizing sheet is pushed up by pressure such as atmospheric pressure or water pressure below the manhole. At this time, the deviation preventing metal fitting contact portion 32 at the upper end of the deviation preventing metal fitting 30 is brought into contact with the lower surface C4 of the shelf portion of the mounting seat C1, and the upward movement is prevented, and the projection C3 is supported above the shelf portion C2. Since the height h is larger than that of the portion 22, the projection receiving hole 23 does not deviate from the projection portion C3. As a result, the hanging bracket 20 is not detached from the mounting seat C1 of the receiving frame C.
In addition, although it touched in the subject, when it is the form where the joint surface C5 of the lid | cover B and the receiving frame C inclines like this example, the upper end of the projection part C3 of the receiving frame C and the lower surface of the lid | cover B1 Although there is a gap between them, it cannot be pressed by the manhole cover, but as described above, the heat insulating cover locking metal fitting 2 of the present invention does not come off the mounting seat C1 of the receiving frame C.

  As shown in FIG. 2, the manhole receiving frame C is protruded toward the center. In the example of FIG. 2, there are six mounting seats C1. However, it is impossible to install the circular device when it is horizontal. For this reason, the apparatus is installed vertically after being lowered through the gaps adjacent to the six mounting seats and then horizontally.

  FIG. 5 shows a state where the heat insulating lid locking fitting 2 is folded. Since it is rotatable around a horizontal axis that is perpendicular to the radial direction, it can be folded, which is advantageous for transportation and storage.

  Up to this point, the example in the case where the heat insulating lid is a heat insulating deodorizing sheet has been described. However, the heat insulating lid locking metal fitting 2 of the present invention is not limited to the above example and can be widely used for various types of heat insulating lids. As an example, FIG. 6 shows a case where the heat insulating lid 1 is formed of a circular flat plate as a second embodiment. This is an example of using a heat insulating lid made of a heat insulating material having a circular outer shape with an appropriate thickness in consideration of the inner diameter of the receiving frame and the vertical shaft portion. 2 is attached so as to be rotatable and undulating about a horizontal axis perpendicular to the radial direction. The form and the action of the heat insulating lid locking metal are completely the same as those of the first embodiment, such as that the protrusion receiving hole of the hanging metal 20 is attached to the protrusion C3 of the shelf C2 of the receiving frame C and does not deviate by the deviation preventing metal 30 The same.

  Moreover, the heat insulation lid latching metal fitting 2 of the present invention is not limited to the heat insulation lid described so far, and can be widely used when a structure in a manhole is suspended and installed.

DESCRIPTION OF SYMBOLS 1 Heat insulation lid 2 Heat insulation lid locking metal fitting 10 Heat insulation deodorizing sheet 11 Board | substrate 14 trunk | drum 15 Valve part 20 Suspension metal fitting 21 Main body part 22 Supporting part 23 Protrusion receiving hole 24 Suspension bearing part 30 Deviation prevention metal fitting 31 Main body part 32 Deviation prevention metal fitting Contact portion 33 Bearing portion 40 Fixing bracket 41 Base portion 42 Bearing portion 43 Fastening means 50 Pin member 51 Hinge pin 52 Fastening member A Manhole B Manhole cover C Receiving frame C1 Mounting seat C2 Shelf portion C3 Projection portion D Shaft portion

Claims (1)

A metal fitting that locks the heat insulating cover provided on the lower side of the manhole cover to the receiving frame,
Consists of suspension bracket, deviation prevention bracket, fixing bracket and pin member,
In the state where this metal fitting is attached to the receiving frame, looking radially outward from the center of the manhole,
The suspension fitting includes a support portion having a protrusion receiving hole to be attached to a protrusion provided on the mounting seat of the receiving frame on the outer side of the upper end of the main body portion in the vertical direction, and a lower surface formed substantially horizontally.
The lower part of the hanging metal fitting is supported by the fixing metal fitting fixed to the heat insulating lid so as to be rotatable about the axis of the pin member provided vertically and horizontally in the manhole radial direction,
The deviation prevention metal fitting is formed on the outside of the suspension metal fitting, and a deviation prevention contact portion at an upper end portion of the deviation prevention metal fitting is formed on the lower side with an appropriate distance from the lower surface of the support portion of the suspension metal fitting, Is supported by the fixing bracket so as to be rotatable around the axis of the pin member,
A heat insulating lid locking bracket, wherein the mounting seat of the receiving frame is disposed so as to be sandwiched between a lower surface of the support portion and the deviation preventing contact portion.

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