JPS6344672B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sealing structure for a buried gas connection with a hose winding device, and more specifically, to prevent gas from leaking due to cracks in the hose inside the hose winding device. The present invention relates to a seal structure that can effectively prevent.

When in use, the hose that communicates between the gas main valve installed on the wall of the building and the gas appliance can be pulled out as much as necessary, and when not in use, it is easy to operate and has a low bulk.
In order to wind up and store the hose in a compact manner, the applicant of this patent has applied for hose winding devices with various configurations. These hose winding devices are configured to wind the hose in a spiral or spiral shape using a winding bar that is rotatably provided around a fixed winding core; These devices are designed to wind the hose in a spiral or spiral shape, and when the gas appliance is not in use, the entire hose is rolled up, and even when the gas appliance is in use, by winding up the excess hose, it can be used indoors. This is to eliminate the inconvenience of the hose meandering around.

If you use such a hose winding device,
Although this can reduce the possibility of damage to the hose, deterioration of the hose itself due to changes over time cannot be avoided. When used under such conditions, the hose itself becomes brittle and cracks occur, causing problems such as gas leakage. Especially when the hose is wound around the core, the hose is located inside the outer case and cannot be seen from the outside, so it is impossible to check for cracks, etc., and in the worst case, you may not notice a gas leak. This was the cause of major accidents involving human life, such as gas explosions.

The present invention aims to eliminate the above-mentioned drawbacks by providing a sealing structure that can effectively prevent gas leakage from a hose stored in a rolled state in an outer case of a winding device to a living space, etc. purpose.

In order to achieve this object, the seal structure of the buried type gas connection with a hose winding device of the present invention has a core for winding a hose and a guide means for winding the hose around the core in an aligned state inside an outer case. The hose winding device is buried in a recess of the structure together with a connection part for connecting to a gas pipe buried in the structure, and an airtight lid with a seal is provided at the opening of the recess. .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The seal structure of a buried gas connection with a hose winding device according to the present invention will be described in detail below with reference to the accompanying drawings showing embodiments.

FIG. 1 is a schematic diagram showing the sealing structure of a buried gas connection with a hose winding device.

1 is a hose winding device, 2 is a gas connection, 3 is a recess, 4 is a sealing lid,
5 is a gas pipe. The hose winding device 1 winds the hose 6 around a winding core in a spiral or spiral manner, and is connected to a gas connection section 2. The gas connection part 2 is connected to a gas pipe 5 which is buried in a wall surface 7 of the building and has its end facing the recess 3, and is further connected to a gas pipe 5 formed at one side peripheral edge of the airtight lid 4. By pressing the seal 8 against the opening peripheral edge of the recess 3, the inside of the recess 3 is kept airtight.

Therefore, if the hose 6 is completely wound around the hose winding device 1 and positioned inside the recess 3, and the recess 3 is further closed with the sealing lid 4, there will be no space between the inside and the outside of the recess 3. is completely airtight, and gas leakage from the wound hose 6 is collected in the recess 3 to prevent leakage to the outside, thereby preventing a major accident such as a gas explosion.

FIG. 2 is a vertical sectional view specifically showing each component.

The hose winding device 1 includes a winding core 12 inside an outer case 11 and a rotatable winding bar 13, and a hose 6 through a rubber tube outlet 15 formed in the center of a front plate 14. The hose 6 drawn out backward through the back plate 16 is connected to the gas connection part 2. Note that 17 is a spring that rotates the take-up bar 13 in one direction, and 18 is a support that supports the outer case 11.

The sealing lid 4 is made of a flat plate material larger than the opening of the recess 3, and maintains the inside of the recess 3 airtight by pressing a rubber seal 8 provided on the periphery of one side to the periphery of the opening of the recess 3. That's what I do. still,
The sealing lid 4 is secured by a crimping and holding mechanism (not shown).
It is designed to be fixed to the opening periphery of the recess 3 without falling or shifting the position.

Therefore, if the hose 6 is completely wound up by the hose winding device 1 and the sealing lid 4 is held by a crimping/holding mechanism (not shown), the hose 6 will form a recess that is kept airtight from the outside. Located within Tokoro 3,
Even if gas leaks due to cracks or the like, it will not leak to the outside from the recess 3, and high safety can be maintained. On the other hand, by removing the sealing lid 4, pulling out the hose 6, and connecting it to a gas appliance, gas can be supplied to the gas appliance.

In addition, in the above embodiment, if the gas leak detection device 9 is installed in the recess 3, the inconvenience of removing the sealing lid 4 without knowing that a gas leak has occurred can be eliminated, and the problem is further improved. Safety can be increased.

FIG. 3 is a longitudinal cross-sectional view showing another embodiment, which differs from the embodiment in FIG. 2 in that the gas connection 2 has an opening and closing function, and the hose 6 is wound in a spiral These are only the points that I chose to take.

More specifically, the hose winding device 1 includes a winding core 12 provided inside an outer case 11, and a spiral groove 19 formed on the outer peripheral surface of the winding core 12. A winding bar 13 is provided that projects to the outside of the winding core 12. Then, the rubber tube outlet 21 is placed in a predetermined position of the outer case 11.
is formed. Note that 22 is a spring that rotates the take-up bar 13.

Further, the gas connection part 2 has an inverted truncated cone-shaped cavity 23 at a predetermined position, and a valve box 25 having a gas supply path 24 that communicates the cavity 23 with a gas pipe. A gas passage 26 rotatably fitted and selectively communicated with the gas supply passage 24
and a valve body 28 having a gas discharge port 27 communicating with the gas passage 26 and extending upward.

The outer case 11 and the valve stem 29 formed continuously on the valve body 28 are connected by a connecting tool 30, so that the outer case 11 and the valve body 28 can be interlocked. A hose 6 pulled out rearward through the back plate 16 is communicated with the gas discharge passage 27.

Therefore, in this embodiment as well, as in the above embodiment, the hose 6 can be stored in the recess 3 in a wound state while maintaining an airtight state, and the hose 6 can be pulled out. Of course, it is possible to supply gas to gas appliances by using the gas connection, and the gas connection 2 can be opened and closed simply by operating the outer case 11, and the gas connection 2 can be opened and closed in a narrow recess 3. Easy to operate.

In each of the above embodiments, the hose winding device 1 is fixed in the recess 3 and only the hose 6 can be pulled out by removing the sealing lid 4. If the hose 6 is pulled out by passing through the sealing lid 4 while maintaining airtightness, the trouble of attaching and detaching the sealing lid 4 can be saved and it is more convenient to use. In addition, the hose winding device 1 itself can be taken out from the recess 3, and the hose winding device 1 can also be constructed by rotating the winding core, or by fixing the winding core and attaching it to the winding bar. By rotating the hose, the hose can be wound into a spiral or spiral shape.
It is possible to have a configuration without any opening/closing mechanism, or a configuration with an opening/closing mechanism that advances and retreats the valve body toward the valve seat, and various other designs may be used without changing the gist of the present invention. Changes can be made.

As described above, the sealing structure of the buried type gas connection with a hose winding device of the present invention provides a hose that has a winding core around which the hose is wound and a guide means for winding the hose around the winding core in an aligned state inside the outer case. The winding device is characterized in that the winding device is buried in a recess of the structure together with a connection part that connects to a gas pipe buried in the structure, and a sealing lid is provided at the opening of the recess. Gas leakage from the hose stored in a coiled state inside the outer case is confined to the recess of the structure, effectively preventing gas from leaking into the outside space and significantly increasing safety. It has a unique effect.

[Brief explanation of drawings]

Fig. 1 is a simplified vertical sectional view showing the seal structure of a buried gas connection with a hose winding device;
The figure is a longitudinal sectional view showing a more specific embodiment than the above, and FIG. 3 is a longitudinal sectional view showing another embodiment of the same. 1... Hose winding device, 2... Gas connection, 3... Recess, 4... Airtight lid, 6... Hose,
8... Seal, 12... Winding core, 13... Winding bar, 19... Spiral groove, 25... Valve box forming the opening/closing mechanism, 28... Valve body forming the opening/closing mechanism.

Claims (1)

[Claims] 1. A connection for connecting a hose winding device, which has a core around which a hose is wound and a guide means for winding the hose around the core in an aligned state, inside an outer case, to a gas pipe buried in a structure. 1. A sealing structure for a buried gas connection with a hose winding device, characterized in that the gas connection is buried in a recess of a structure together with a hose winding device, and a sealing lid with a seal is provided at the opening of the recess. 2. A sealing structure for a buried gas connection with a hose winding device according to claim 1, wherein the hose winding device winds the hose in a spiral shape. 3. A sealing structure for a buried gas connection with a hose winding device according to claim 1, wherein the hose winding device winds the hose in a spiral shape. 4. A seal structure for a buried gas connection with a hose winding device according to claim 2 or 3, wherein the guide means is a winding bar rotatably provided with respect to the winding core. 5. A sealing structure for a buried gas connection with a hose winding device according to claim 3, wherein the guide means is a spiral groove formed on the outer peripheral surface of the winding core. 6. A seal structure for a buried gas connection with a hose winding device according to claim 2 or 3, wherein the connection has a closing mechanism. 7. The buried gas connection with a hose winding device according to claim 6, wherein the closing mechanism is connected to a hose winding device, and the closing mechanism is actuated by the hose winding device. Seal structure. 8. A seal structure for a buried gas connection with a hose winding device according to claim 1, wherein the seal is a rubber seal. 9. A sealing structure for a buried gas connection with a hose winding device according to claim 1, wherein a gas leak sensing device is provided in the recess.