KR101858532B1

KR101858532B1 - Fire Hydrant Protection Device

Info

Publication number: KR101858532B1
Application number: KR1020180037266A
Authority: KR
Inventors: 김대홍
Original assignee: (주)건축사사무소건일종합기술
Priority date: 2018-03-30
Filing date: 2018-03-30
Publication date: 2018-06-28

Abstract

The present invention relates to a device for protecting a fire hydrant for construction that prevents damage to a fire hydrant by tilting the fire hydrant when an impact is applied to the fire hydrant, including a movable pipe (30) connected to the lower end of a fire hydrant (20); a fixed pipe (50) installed in a burial housing (40); a hollow rotating sphere (31) formed at the lower end of the movable pipe (30); an upper flange (32) formed in the lower end portion of the rotating sphere (31); a hollow support sphere (51) formed at the upper end of the fixed pipe (50) and spherical-coupled with the inside of the rotating sphere (31); a deviation prevention ring (60) in close contact with the outside surface of the support sphere (51); a lower flange (61) formed at the upper end of the deviation prevention ring (60) and coupled with the upper flange (32); a packing (62) positioned between the upper flange (32) and the lower flange (61); an annular groove (63) formed in the inner peripheral surface of the deviation prevention ring (60); an O-ring (64) installed in the annular groove (63); a spring flange (70) formed in the lower end portion of the fixed pipe (50); upper clevises (65) installed at predetermined intervals along the outer peripheral surface of the lower flange (61); lower clevises (71) installed at predetermined intervals along the outer peripheral surface of the spring flange (70); an upper locking pin (66) installed in the upper clevis (65); a lower locking pin (72) installed in the lower clevis (71); and a balance spring (80) maintaining the fire hydrant (20) in an upright state at a neutral position with both ends locked by the upper locking pin (66) and the lower locking pin (72).

Description

{Fire Hydrant Protection Device}

FIELD OF THE INVENTION The present invention relates to a fire hydrant protection device for a building, and more particularly, to a fire hydrant protection device for a building, which prevents a fire hydrant from being damaged by making a fire hydrant tilt when an impact is applied to a fire hydrant, .

Generally, a fire hydrant is a facility for connecting a fire hose for fire extinguishing to a water supply pipe of a water supply, and is distinguished as an indoor fire hydrant and an outdoor fire hydrant. Dual outdoor fire hydrants are usually installed at the border between a motorway and a sidewalk, so that they can be easily detected at night or when snow falls.

Such a ground-type outdoor fire hydrant is usually installed at the boundary between a road and a sidewalk, as shown in the accompanying drawings, so that a vehicle traveling around often collides with the fire hydrant (10). In this case, The pipe 13 buried in the ground is broken and the bolts 14 connecting the pipe 13 and the flanges 11 and 12 provided in the hydrantshed 10 are damaged.

In order to solve this problem, a bollard made of steel pipe is installed around the fire hydrant. However, there has been a problem that the bollard interferes in opening and closing the fire hydrant valve and connecting the fire hose, thereby delaying the rapid fire evolution. There was a problem that the fire hydrant installed on one road had to be neglected.

Korean Utility Model Registration No. 20-0435334 Korean Utility Model Registration No. 20-0477868

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a fire hydrant protection device for a building which can prevent a fire hydrant from being damaged from impact.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a fire hydrant protection device for a building, comprising: a movable pipe connected to a lower end of a fire hydrant; A fixed pipe installed inside the burial chamber; A hollow rotating sphere formed at the lower end of the movable pipe; An upper flange formed at a lower end of the rotating sphere; A hollow support member formed on the upper end of the fixed pipe and spherically coupled to the inside of the rotating sphere; A release preventing ring which is in close contact with the outer surface of the support spheres; A lower flange formed at the upper end of the departure prevention ring and coupled to the upper flange; A packing positioned between the upper flange and the lower flange; An annular groove formed on an inner peripheral surface of the release preventing ring; An o-ring installed in the annular groove; A spring flange formed at a lower end of the fixed pipe; An upper clevis disposed at regular intervals along the outer peripheral surface of the lower flange; A lower clevis provided at regular intervals from each other along the outer peripheral surface of the spring flange; An upper engagement pin provided on the upper clevis; A lower engaging pin provided on the lower clevis; And a balance spring which is held at both ends of the upper and lower latching pins to keep the fire hydrant standing in a neutral position.

An annular stopper is formed inside a rotating sphere and is caught on the top of a supporting sphere. A steel band installed on an outer peripheral surface of the fixed pipe and having an open side; A bolt engaging portion formed at an end of the steel band; A bolt and a nut installed in the bolt coupling portion for tightening the steel band; And a limit bum bar which is installed at a predetermined interval in the circumferential direction along the upper end of the steel band and is caught by the lower end of the escape prevention ring and deformed when an impact of a predetermined value or more is applied to the fire hydrant.

The present invention relates to a spherical cover provided on a movable pipe so as to be at the same center as a center of rotation of a rotating sphere; And a spherical flange formed in the buried container and contacting the outer surface of the spherical lid.

As described above, according to the present invention, when the impact is applied to the hydrant 20, the rotating sphere 31, the escape prevention ring 60, and the movable pipe 30 together with the fire hydrant 20, It is possible to prevent breakage of the hydrator 20 due to collision of the vehicle.

The limit bracing bar 95 provided on the steel band 90 is adapted to support the bracing ring 60 and the limit bracing bar 95 is deformed when a certain amount of force is applied thereto, It is possible to prevent the hydrant 20 from being shaken by an external force.

The fire hydrant 20 inclined by the impact returns to the original position, which is the original position, by the elastic restoring force of the extended balance spring 80, so that the maintenance of the fire hydrant 20 after the impact is simplified.

The inside of the buried container 40 is normally hidden by the spherical lid 41 provided on the movable pipe 30. When the shock is applied to the fire hydrant 20, the spherical lid 41 is moved together with the movable pipe 30 So that breakage of the buried box 40 can be prevented.

It is possible to prevent leakage between the separation preventing ring 60 and the support spheres 51 when the rotation spheres 31 and the separation preventing rings 60 are rotated by the O-rings 64 provided in the separation preventing rings 60 .

Further, the present invention has the effect of facilitating the replacement of the deformed limit support bar 95 because the steel band 90 is free to separate or install the steel band 90 from the fixed pipe 50.

Fig. 1 is a perspective view showing a general fire hydrant, in which a fire hydrant is broken by an impact
Fig. 2 is an exploded perspective view
Fig. 3 is an exploded perspective view of Fig. 2,
Figure 4 is a perspective view of a bottom-
Figure 5 is a cross-
6 is a front view according to the present invention
Figure 7 is a perspective view of a fire hydrant according to the present invention,
Figure 8 is a cross-
9 is a front view of Fig. 7

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 2 to 9, the present invention includes a movable pipe 30 connected to a lower end of a hydrant 20; A fixed pipe (50) installed inside the burial chamber (40); A hollow rotating sphere 31 formed at the lower end of the movable pipe 30; And an upper flange 32 formed at the lower end of the rotating sphere 31. [

An exposed flange 36 may be provided on the upper end of the movable pipe 30 to be coupled to the circular flange 21 formed at the lower end of the fire hydrant 20 using bolts as shown in FIG.

The fixed pipe 50 is vertically installed inside the buried compartment 40 buried in the ground and connected to a water supply pipe (not shown) through a tee 22 and the rotating sphere 31 and the upper flange 32 And is integrally formed at the lower portion of the movable pipe 30. [

The outer surface of the rotating sphere 31 can be formed into a spherical surface so as to smoothly rotate the inner surface of the rotating sphere 31 to smoothly rotate and prevent water leakage at the same time, have.

The present invention comprises a hollow support member (51) formed at the upper end of a fixed pipe (50) and spherically connected to the inside of a rotating sphere (31); A separation preventing ring (60) which is in close contact with an outer surface of the support member (51); A lower flange 61 formed at the upper end of the release preventing ring 60 and coupled to the upper flange 32; A packing 62 positioned between the upper flange 32 and the lower flange 61; An annular groove (63) formed on an inner peripheral surface of the release preventing ring (60); And an O-ring (64) provided in the annular groove (63).

The outer surface of the support spherical body 51 is processed into a smooth spherical surface to prevent water leakage and the inner surface of the support spherical body 51 can be formed as a spherical surface in order to keep the thickness of the support spherical body 51 constant.

The inner surface of the release preventing ring 60 is formed into a smooth spherical surface having the same inner diameter as the spherical surface formed on the inner surface of the rotary sphere 31 so as to be smoothly rotated together with the rotary sphere 31. [

The lower flange 61 is integrally formed with the release preventing ring 60 and the packing 62 is for preventing leakage that may occur through the gap between the upper flange 32 and the lower flange 61.

The O-ring 64 provided in the annular groove 63 is for preventing water leakage which may occur through the sliding surface between the separation preventing ring 60 and the support member 51. For example, Ring can be used.

2 and 3, the upper flange 32, the lower flange 61, and the packing 62 are punched with a hole having a center, and a hole is formed between the upper flange 32 and the lower flange 61 The upper flange 32 and the lower flange 61 are engaged with the flange bolts 34 by inserting the flange bolts 34 through the holes formed with the packing 62 interposed therebetween, Lt; / RTI >

The present invention comprises a spring flange (70) formed at the lower end of a fixed pipe (50); An upper clevis 65 installed at regular intervals from the outer circumferential surface of the lower flange 61; A lower clevis 71 installed at regular intervals from the outer circumferential surface of the spring flange 70; An upper engagement pin 66 installed on the upper clevis 65; A lower engaging pin 72 installed on the lower clevis 71; And a balance spring 80 that holds both ends of the upper and lower engagement pins 66 and 72 in an upright position in the neutral position.

The spring flange 70 is welded to the lower end of the fixed pipe 50 and two upper clevises 65 are spaced apart from each other and a plurality of sets are provided along the circumferential direction of the lower flange 61.

The upper clevis 65 and the lower clevis 71 are also provided with a plurality of tanks arranged along the circumferential direction of the spring flange 70, The screws 71 are provided so as to correspond one to one with each other.

The upper engaging pin 66 penetrates through the hole formed in the upper clevis 65 and prevents both ends of the upper engaging pin 66 from being separated from the upper clevis 65 by press-forming the both ends of the upper engaging pin 66 into a rivet head shape.

The lower engaging pin 72 penetrates through the hole formed in the lower clevis 71 and prevents both ends of the lower engaging pin 72 from being separated from the lower clevis 71 by press-

The upper latching pin 66 and the lower latching pin 72 are provided so as to correspond to each other in a one-to-one correspondence, and the balance spring 80 can be constituted by, for example, a tension coil spring in which a spring steel wire is spirally wound and a ring is formed at both ends , All the balance springs 80 are configured to be the same.

When both ends of the balance spring 80 are hooked to the upper engagement pin 66 and the lower engagement pin 72, when the both ends of the balance spring 80 are pulled by a certain length to be engaged with the elastic force applied thereto, And the movable pipe 30 and the fire hydrant 20 are held vertically by the balance spring 80. [

8 and 9, it is preferable that the length of the balance spring 80 contracted to the shortest length at the position where the movable pipe 30 is at the maximum inclination is longer than the length when the balance spring 80 is in the free state So that the shrunk balance spring 80 can be prevented from being detached.

An annular stopper (33) formed inside the rotating sphere (31) and hooked on the top of the supporting sphere (51); A steel band 90 installed on the outer circumferential surface of the fixed pipe 50 and opened at one side; Bolt engagement portions 91 and 92 formed at the ends of the steel band 90; A bolt 93 and a nut 94 installed on the bolt coupling portions 91 and 92 to tighten the steel band 90; A limit bushing bar 95 which is installed at a predetermined interval in the circumferential direction along the upper end of the steel band 90 and is caught by the lower end of the escape prevention ring 60 and deformed when an impact of a predetermined value or more is applied to the fire hydrant 20, .

The annular stopper 33 is integrally formed inside the rotating sphere 31 and is for restricting an angle of tilting when the movable pipe 30 is inclined forward, backward, leftward and rightward.

2 and 3, the steel band 90 may be formed by bending a C-shaped spring steel plate having a certain thickness and width, and the bolt connecting portions 91 and 92 may be formed by bending the steel band And the bolts 93 are inserted into the holes of the bolt engaging portions 91 and 92 so as to be engaged with each other.

The limit bracing bar 95 may be disposed upright along the periphery of the steel band 90 and welded to the steel band 90 at the lower end thereof to form a constant thickness of the limit bracing bar 95, When a force exceeding a predetermined level is applied to the limit assisting bar 95 when the movable bar 60 is about to be rotated, the movable bar 30 is deformed to assist rotation of the rotating barrel 31 and the escape prevention ring 60.

The limit support bar 95 is provided to prevent the hydrant 20 from moving easily due to strong wind or external force. Normally, since the upper end of the limit assisting bar 95 is caught at the lower end of the escape prevention ring 60, When the hydrator 20 is collapsed to one side due to the impact, the limit bracing bar 95 is bent and the movable pipe 30, the rotating sphere 31 and the escape prevention ring 60 are rotated And the balance spring 80 serves to absorb the impact applied to the hydrant 20.

The present invention is characterized by including: a spherical cover (41) installed on a movable pipe (30) so as to be at the same center as a center of rotation of a rotating spherical body (31); And a spherical flange 42 having a buried chamber 40 formed therein and contacting the outer surface of the spherical lid 41.

The spherical lid 41 and the spherical flange 42 are provided so as to have the same center as the rotating sphere 31. When the spherical lid 41 moves together with the movable pipe 30 when the movable pipe 30 is collapsed to one side And normally hides the inside of the buried box 40 from being exposed to the outside.

The spring flange 70 is fixed to the stationary pipe 50 while the release preventing ring 60 and the steel band 90 are fitted outside the stationary pipe 50 before the spring flange 70 is welded to the stationary pipe 50. [ As shown in FIG.

Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 4 to 6, when no external force is applied to the hydrator 20, the balance spring 80 is stopped at a point where the forces are balanced with each other, .

When a small external force is applied to the fire hydrant 20 due to strong wind or contact, the fire hydrant 20 may be shaken. When the limit assisting bar 95 caught by the escape preventing ring 60 is fixed by the steel band 90 The shaking of the hydrant 20 is prevented because it is installed in the pipe 50.

7 to 9, when the vehicle or the like collides against the fire hydrant 20, the fire hydrant 20 is tilted in the direction in which the impact is applied, The escape prevention ring 60 and the movable pipe 30 are rotated together with the hydrant 20.

At this time, the balance spring 80 located on the opposite side of the direction in which the hydrator 20 is tilted with respect to the vertical position is elongated, the balance spring 80 located in the direction in which the hydrator 20 is described is contracted, The impact energy is absorbed by the balance spring 80 while the length of the spring 80 is increased.

When the limit bracing bar 95 supporting the release preventing ring 60 is installed on the fixed pipe 50 by the steel band 90, the limit bracing bar 95 is prevented from being damaged by fire 20, the limit restraining bar 60 and the rotating sphere 31 start to rotate as the limit assisting bar 95 is bent as shown in Figs. 8 and 9.

When the movable pipe 30 is inclined, the spherical lid 41 provided on the movable pipe 30 is also rotated together with the movable pipe 30. The spherical flange 42 provided on the buried container 40 is inserted into the spherical lid 41, it is possible to prevent the inside of the buried box 40 from being exposed to the outside, while preventing the buried box 40 from being damaged.

An O-ring 64 provided on the release preventing ring 60 slides along the outer spherical surface of the support member 51 when the rotation ball 31 and the release preventing ring 60 are rotated. At this time, The leakage of water between the upper flange 32 and the lower flange 61 is blocked by the O-ring 64 and the leakage between the upper flange 32 and the lower flange 61 And is blocked by a packing 62 provided in the cartridge.

When the external force applied to the hydrator 20 is removed, the hydrants 20 are vertically erected by the elastic restoring force of the extended balancing spring 80. At this time, all the balance springs 80 are positioned at a position The fire hydrant 20 is quickly returned to the vertical position while the shrinkage and extension of the spring are stopped, and the spherical lid 41 is also rotated together to return to its original position.

The deformed limit strut bar 95 is useless and can be removed from the fixed pipe 50 by unscrewing the bolt 93 and the nut 94 and the new limit strut bar 95 can be removed from the steel band 90, When the escape prevention ring 60 is mounted on the fixed pipe 50 by means of bolts 91, 92, bolts 93 and nuts 94, It is possible to prevent shaking.

20: Fire hydrant 21: Circular flange
22: tee 30: movable pipe
31: rotating sphere 32: upper flange
33: annular stopper 34: flange bolt
35: flange nut 36: exposed flange
40: burial chamber 41: spherical cover
42: spherical flange 50: stationary pipe
51: support member 60:
61: Lower flange 62: Packing
63: Annular groove 64: O-ring
65: upper clevis 66: upper catch pin
70: spring flange 71: lower clevis
72: lower engaging pin 80: balance spring
90: steel band 91, 92:
93: bolt 94: nut
95: Limit support bars

Claims

A movable pipe (30) connected to the lower end of the hydrant (20);
A fixed pipe (50) installed inside the burial chamber (40);
A hollow rotating sphere 31 formed at the lower end of the movable pipe 30;
An upper flange 32 formed at a lower end of the rotating sphere 31;
A hollow support member 51 formed at the upper end of the fixed pipe 50 and spherically coupled to the inside of the rotating sphere 31;
A separation preventing ring (60) which is in close contact with an outer surface of the support member (51);
A lower flange 61 formed at the upper end of the release preventing ring 60 and coupled to the upper flange 32;
A packing (62) positioned between the upper flange (32) and the lower flange (61);
An annular groove (63) formed on an inner circumferential surface of the release preventing ring (60);
An O-ring 64 installed in the annular groove 63;
A spring flange 70 formed at a lower end of the fixed pipe 50;
An upper clevis 65 installed at regular intervals along the outer circumferential surface of the lower flange 61;
A lower clevis 71 installed at regular intervals from the outer circumferential surface of the spring flange 70;
An upper locking pin 66 installed on the upper clevis 65;
A lower engaging pin 72 installed on the lower clevis 71;
A balance spring 80 for holding the hydrant 20 in an upright position in which the upper end of the hydrant 20 and the lower end of the lower end of the hydrant 20 are engaged with the upper and lower engaging pins 66 and 72, respectively;
And a fire extinguisher.

The method according to claim 1,
An annular stopper (33) formed inside the rotating sphere (31) and hooked on the upper end of the supporting sphere (51);
A steel band 90 installed on an outer circumferential surface of the fixed pipe 50 and opened at one side;
Bolt engagement portions 91 and 92 formed at the ends of the steel band 90;
A bolt 93 and a nut 94 installed on the bolt coupling portions 91 and 92 to tighten the steel band 90;
The limit bushing bar 60 is installed at a predetermined interval in the circumferential direction along the upper end of the steel band 90 and is caught by the lower end of the escape prevention ring 60 and deformed when an impact of a predetermined value or more is applied to the fire hydrant 20. (95);
And a fire extinguisher.

The method according to claim 1,
A spherical lid 41 installed on the movable pipe 30 so as to be at the same center as the center of rotation of the rotating sphere 31;
A spherical flange 42 formed on the buried container 40 and contacting the outer surface of the spherical lid 41;
And a fire extinguisher.