KR101855342B1 - Height Adjustment Device for Fire Sprinkler Head - Google Patents

Height Adjustment Device for Fire Sprinkler Head Download PDF

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Publication number
KR101855342B1
KR101855342B1 KR1020170165042A KR20170165042A KR101855342B1 KR 101855342 B1 KR101855342 B1 KR 101855342B1 KR 1020170165042 A KR1020170165042 A KR 1020170165042A KR 20170165042 A KR20170165042 A KR 20170165042A KR 101855342 B1 KR101855342 B1 KR 101855342B1
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KR
South Korea
Prior art keywords
hole
pinion gear
center
sprinkler head
slider
Prior art date
Application number
KR1020170165042A
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Korean (ko)
Inventor
이진성
Original Assignee
선인기술단주식회사
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Priority to KR1020170165042A priority Critical patent/KR101855342B1/en
Application granted granted Critical
Publication of KR101855342B1 publication Critical patent/KR101855342B1/en

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/18—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with elements moving in a straight line, e.g. along a track; Mobile sprinklers

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The present invention relates to a sprinkler head height adjusting device for a fire extinguishing sprinkler head capable of quickly releasing the engagement of a gear to adjust the height of a sprinkler head, and includes a vertical guide slot 22 formed in the angle 20; A connecting rib 32 formed in the elbow 31 connected to the sprinkler head 30; A slider (33) moving along the vertical guide slot (22); A slide hole 34 formed in the slider 33; A rack gear (40) installed perpendicularly to the angle (20); A pinion gear 50 which meshes with the rack gear 40 and moves up and down; A hollow hollow shaft 51 formed at the rear center of the pinion gear 50; An annular engaging portion 52 formed on the pinion gear 50; A handle 60 formed at the center of the rear surface of the die hole 61 for rotating the pinion gear 50; A screw hole 62 formed in the handle 60; A spring seat 53 provided at an end of the hollow hollow shaft 51; A connecting bolt 63 which is inserted into the screw hole 62 formed in the handle 60 through the center of the spring seat 53 and the hollow hollow shaft 51; A clutch spring (70) fitted to the outer peripheral surface of the hollow hollow shaft (51); A tapped hole 35 formed in the slider 33; A pressing washer (80) having a through hole (81) coinciding with the center of the tapped hole (35); A fixing bolt 82 coupled to the tapped hole 35 through the through hole 81 formed in the pressure washer 80; And an interference preventing hole 36 formed on a side surface of the connecting rib 32. [

Figure R1020170165042

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fire-

The present invention relates to a sprinkler head height adjusting device for a fire extinguishing sprinkler head capable of adjusting the height when installing a sprinkler head for fire evolution on a ceiling slab, and more particularly, The height of the sprinkler head is increased.

Generally, sprinkler is a type of fire extinguishing system that evolves by spraying water automatically in the event of a fire. It installs soluble metal such as lead that melts at a certain temperature (for example, around 70 ℃) on the sprinkler head, Is dissolved and thereby the sprinkler head is opened and the water evolves by being automatically sprayed through the open sprinkler head.

1, the sprinkler head 12 is installed at the lower end of the elbow 11 connected to the corrugated pipe 10, and the sprinkler head 12 is provided at the lower end of the elbow 11 connected to the corrugated pipe 10, And a lifting bar 13 formed with a tapped hole 13t on one side thereof is integrally formed with the elbow 11. [

The elevation bar 13 is inserted into the angle 14 fixed to the ceiling slab 15 by the anchor bolts 14a and 14b and the anchor nuts 14c and 14d to form a slot 16, An adjusting bolt 17 screwed to the tapped hole 13t is vertically provided on the angle 14 so that the adjusting bolt 17 is rotated in the normal direction or the reverse direction so that the elevating bar 13, 12 can be raised or lowered vertically together.

A snap ring 18 was provided on the outer circumferential surface of the adjustment bolt 17 to prevent the adjustment bolt 17 from being detached from the angle 14 while rotating the adjustment bolt 17.

However, such a conventional technique has a problem that the operation speed is greatly reduced because the adjustment bolt 17 can be rotated several times in order to adjust the height of the sprinkler head 12. [

Korean Patent Registration No. 10-1647971

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a sprinkler head height adjusting device for fire fighting which can quickly adjust the height of a sprinkler head.

In order to accomplish the object of the present invention, there is provided an apparatus for height adjustment of a sprinkler head for fire fighting, comprising: a vertical guide slot formed in an angle; A connecting rib formed on the outer surface of the elbow connected to the sprinkler head; A slider of a T-shaped cross-section vertically formed at an end of the connecting rib and moving in the vertical direction along the vertical guide slot; A slide hole formed horizontally through the front and rear surfaces of the slider; A rack gear which is installed perpendicularly to the angle so as to be parallel to the vertical guide ball and has teeth provided at a predetermined distance from the edge of the vertical guide slot; A pinion gear which moves in a vertical direction while being rotated in engagement with the rack gear; A hollow hollow shaft formed at the center of the rear surface of the pinion gear and inserted into the slider hole and projecting rearward; A releasable engagement portion formed at the front center of the pinion gear; A release hole for inserting the mold-engaging portion is formed at the rear center, and a handle for rotating the pinion gear; A screw hole formed in the handle; A spring seat provided at an end of the hollow hollow shaft; A connecting bolt passing through the center of the spring seat and the hollow shaft of the slide and coupled to a screw hole formed in the handle; A clutch spring that is fitted on an outer peripheral surface of the hollow shaft of the slide and repulsive between the spring seat and the slider so that the pinion gear and the rack gear mesh with each other; A tab hole formed in the slider; A press washer of a T-shaped cross section fitted in the vertical guide slot and having a through-hole coinciding with the center of the tapped hole; A fixing bolt coupled to the tapped hole through the through hole formed in the pressure washer; And an interference preventing hole formed in a side surface of the connecting rib to avoid interference between the fixing bolt and the connecting rib.

The present invention relates to a rack gear comprising: a central protrusion formed at a center of a side edge of a rack gear opposite to a tooth; A locking hole formed in the side rib formed at the edge of the angle for inserting the central projection; A bending portion formed at upper and lower ends of the rack gear, respectively; And a square hole formed in the angle for inserting the bent portion.

The pinion gear 50 and the rack gear 40 are disengaged from each other when the handle 60 is pulled in the axial direction so that the handle 60 is not rotated The height of the sprinkler head 30 can be quickly adjusted by raising or lowering the sprinkler head 30 in the vertical direction.

The pinion gear 50 is automatically engaged with the rack gear 40 by the clutch spring 70 when the hand is released from the pulled-out handle 60, so that there is an effect that the use is facilitated.

The bending portions 43 and 44 formed at the upper and lower ends of the rack gear 40 are inserted into the rectangular holes 24a and 24b formed in the angle 20 and then the bent portion 43 protruded to the rear surface of the angle 20, The rack gear 40 can be easily and quickly assembled to the angle 20 by bending the bracket 44 once again.

The center protruding portion 42 formed on the side edge of the rack gear 40 is inserted into the retaining hole 23h formed in the side rib 23 to prevent the rack gear 40 from being lifted from the surface of the angle 20 There is an effect that can be done.

Further, the present invention prevents the end portion of the fixing bolt 82, which protrudes rearward from penetrating the slider 33 by the interference preventing hole 36 formed in the connecting rib 32, from interfering with the connecting rib 32 The effect can be expected.

Figure 1 is a cross-
Fig. 2 is an exploded perspective view
Fig. 3 is a rear exploded perspective view of Fig. 2
Fig. 4 is a perspective view of an assembled state
Fig. 5 is a rear perspective view of Fig.
6 is a front view according to the present invention
Figure 7 is a side sectional view
8 is a sectional view taken along the line A-A 'in Fig. 7
Fig. 9 is a plan view showing the pinion gear separated from the rack gear from the state of Fig. 8
10 is a sectional view taken along the line B-B 'in 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 10, the present invention includes a vertical guide slot 22 formed in an angle 20; A connecting rib 32 formed on the outer surface of the elbow 31 connected to the sprinkler head 30; A slider 33 of a T-shaped cross section formed vertically to the end of the connecting rib 32 and moving in the vertical direction along the vertical guide slot 22; And a slide hole (34) formed horizontally through the front and rear surfaces of the slider (33).

The connecting rib 32 and the slider 33 can be integrally formed together with the elbow 31 when casting by die casting or investment casting using metal, for example. The connecting rib 32 has a constant thickness And the slider 33 may be formed into a shape in which the T-shaped section of a convex shape is continuous in the vertical direction when viewed from the plane.

In addition, the contact surface of the slider 33 contacting the angle 20 can be precisely machined by post-cast machining for smooth movement, and lubricating oil or grease can be applied to reduce frictional resistance.

A rectangular protruding portion (not shown) formed on the front surface of the slider 33 is inserted into the vertical guide slot 22 and guided along the vertical guide slot 22 in the vertical direction, As shown in FIG.

A rack gear (40) is provided perpendicularly to an angle (20) parallel to a vertical guide slot (22) and having teeth (41) installed at a certain distance from the edge of a vertical guide slot (22). And a pinion gear 50 that moves in the vertical direction while being rotated by being engaged with the rack gear 40.

The rack gear 40 can be formed by a press forming method using, for example, a steel plate having a constant thickness, and a tooth portion 41 corresponding to the gear can be formed at one edge of the rack gear 40 .

A slide hollow shaft 51 formed at the rear center of the pinion gear 50 and inserted into the slider hole 34 and projecting rearward; An annular engaging portion 52 formed at the front center of the pinion gear 50; A release hole 61 for inserting the mold-engaging portion 52 is formed at the rear center and includes a handle 60 for rotating the pinion gear 50.

The mold releasing portion 52 and the mold releasing hole 61 can be formed by flattening both sides of the round bar having the circular cross section as shown in Figs. 2, 3 and 6, and the mold releasing portion 52 And the release hole 61 serve to prevent the pinion gear 50 from loosening and to transmit the rotational force generated from the handle 60 to the pinion gear 50 when the handle 60 is rotated.

As shown in FIGS. 2 to 5, a semicircular groove (not shown) may be formed at regular intervals along the outer circumferential surface of the handle 60 to prevent slippage when the handle 60 is rotated.

A hollow hole 51h is formed between the slide hollow shaft 51 and the pinion gear 50 to allow the following connecting bolts 63 to pass through the centers of the slide hollow shaft 51, the pinion gear 50, And a shape of a straight line at the center of the mold-engaging portion 52.

The present invention comprises a screw hole (62) formed in a handle (60); A spring seat 53 provided at an end of the hollow hollow shaft 51; A connecting bolt 63 which is inserted into the screw hole 62 formed in the handle 60 through the center of the spring seat 53 and the hollow hollow shaft 51; And a clutch spring 70 fitted to the outer peripheral surface of the hollow hollow shaft 51 and repulsing between the spring seat 53 and the slider 33 so that the pinion gear 50 and the rack gear 40 mesh with each other do.

The screw hole 62 is formed so as to extend from the front center of the handle 60 toward the release hole 61 so as to coincide with the center of the hollow hole 51h and the spring seat 53 has an outer diameter larger than the outer diameter of the clutch spring 70 And the clutch spring 70 may be formed in the form of a compression coil spring formed by spirally winding a spring steel wire.

The present invention is characterized by comprising: a tapped hole (35) formed in the slider (33); A press washer 80 of a T-shaped cross section fitted in the vertical guide slot 22 and having a through hole 81 coinciding with the center of the tap hole 35; A fixing bolt 82 coupled to the tapped hole 35 through the through hole 81 formed in the pressure washer 80; And an interference preventing hole 36 formed on a side surface of the connecting rib 32 to prevent interference between the fixing bolt 82 and the connecting rib 32. [

10, the pressing washer 80 may be formed so that a T-shaped section of a convex shape is continuous in the up and down direction, and the pressing washer 80 and the slider 33 A gap is formed between the slider 33 and the pressing washer 80 so that a pressing force is applied to the angle 20 positioned between the slider 33 and the pressing washer 80 .

The interference preventing hole 36 is provided to prevent the end portion of the fixing bolt 82 from interfering with the connecting rib 32 when the fixing bolt 82 passes the tapped hole 35. The connecting rib 32 Or a rectangular hole or a circular hole that passes through the left and right side surfaces.

The present invention comprises a central protrusion (42) formed at the center of a side edge of a rack gear (40) opposite to a tooth (41); A locking hole 23h formed in the side rib 23 formed at the edge of the angle 20 for inserting the central projection 42; Bending portions 43 and 44 respectively formed at upper and lower ends of the rack gear 40; (24a) and (24b) formed in the angle (20) for inserting the bent portions (43) and (44).

The lateral position of the rack gear 40 can be determined by bringing the rack gear 40 into close contact with the bending portion on the inner side of the side ribs 23 formed in the angle 20. The rack gear 40 and the vertical guide slots 22 Can be easily adjusted.

When the bent portions 43 and 44 formed at the upper and lower ends of the rack gear 40 are inserted into the rectangular holes 24a and 24b formed in the angle 20 when the rack gear 40 is brought into close contact with the angle 20, The upper and lower positions of the rack gear 40 can be determined in a homogeneous quality and the bending portions 43 and 44 protruding from the rear surface of the angle 20 after the rack gear 40 is brought into close contact with the angle 20, It is possible to prevent the rack gear 40 from being detached from the angle 20 when the end portions of the rack gear 40 are bent in directions opposite to each other.

The center protruding portion 42 formed on the side edge of the rack gear 40 is for preventing the rack gear 40 from lifting from the surface of the angle 20. When the bent portions 43 and 44 are inserted into the square hole 24a, The rack gear 40 is slightly bent due to the elastic deformation when it is inserted into the locking hole 24h, and the central protrusion 42 enters the locking hole 23h and is caught.

Reference numeral 21 denotes a ceiling slab, reference numeral 25 denotes a corrugated pipe connected to an elbow 31 to supply digestion water, reference numeral 26 denotes an anchor to be inserted into the ceiling slab 21, reference numeral 27 denotes an angle 20, And a nut 28 is a horizontal slot formed in the angle 20. As shown in Fig.

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

The angle 20 is installed on the ceiling slab 21 by using the anchor 26 and the nut 27 as shown in FIGS. 2 to 10 and then the height of the sprinkler head 30 is adjusted. At this time, when the height of the sprinkler head 30 is greatly deviated from the predetermined position, the handle 60 is held by hand while loosening the fixing bolt 82, and the handle 60 is pulled in the axial direction, A transmission path from the handle 60 to the connecting bolt 63, the spring seat 53, the hollow hollow shaft 51, the pinion gear 50 and the deformed engaging portion 52 is formed.

At this time, while the connection bolt 63, the spring seat 53, the hollow hollow shaft 51, the pinion gear 50, and the deformed engaging portion 52 are moved together with the handle 60, the pinion gear 50 rotates The clutch spring 70 is compressed and the slide hollow shaft 51 is slid in the horizontal direction while receiving the linear guide of the slide hole 34 formed in the slider 33. [

When the pinion gear 50 is separated from the rack gear 40 and thus the handle 60 is held in the vertical direction, the slider 33 is moved by the slide hollow shaft 51 in the vertical guide slot 22 The height of the sprinkler head 30 can be quickly adjusted while moving in the vertical direction.

When the height of the sprinkler head 30 is quickly adjusted and the height of the sprinkler head 30 is finely adjusted in a state where the pinion gear 50 and the rack gear 40 are disengaged as described above, The pinion gear 50 is moved toward the rack gear 40 by the resilient restoring force of the clutch spring 70. As a result,

When the pinion gear 50 is in close contact with the rack gear 40 and then the handle 60 is slightly rotated, the pinion gear 50 is accurately engaged with the rack gear 40, When the handle 60 is rotated clockwise or counterclockwise in this state, the pinion gear 50 is rotated and simultaneously moves up and down along the rack gear 40, The height can be finely adjusted.

The pressure washer 80 and the slider 33 come into close contact with the front and rear surfaces of the angle 20 so that the sprinkler head 30 is pressed against the front surface of the angle 20, As shown in Fig.

20: angle 21: ceiling slab
22: vertical guide slot 23: side rib
23h: engaging hole 24a, 24b: square hole
25: corrugated pipe 26: anchor
27: Nut 28: Horizontal slot
30: sprinkler head 31: elbow
32: connecting rib 33: slider
34: slide hole 35: tab hole
36: interference prevention hole 40: rack gear
41: tooth portion 42: central projection portion
43, 44: bending section 50: pinion gear
51: hollow hollow shaft 51h: hollow hole
52: release engagement portion 53: spring seat
60: handle 61: release hole
62: screw hole 63: connecting bolt
70: clutch spring 80: pressure washer
81: Through hole 82: Fixing bolt

Claims (2)

A vertical guide slot 22 formed in the angle 20;
A connecting rib 32 formed on the outer surface of the elbow 31 connected to the sprinkler head 30;
A slider 33 of a T-shaped cross section perpendicularly formed at an end of the connecting rib 32 and moving up and down along the vertical guide slot 22;
A slide hole 34 formed horizontally through the front and rear surfaces of the slider 33;
A rack gear (40) vertically installed on the angle (20) so as to be parallel to the vertical guide slot (22) and having teeth (41) installed at a predetermined distance from the edge of the vertical guide slot (22);
A pinion gear 50 which is rotated in a vertical direction while being engaged with the rack gear 40;
A slide hollow shaft 51 formed at the center of the rear surface of the pinion gear 50 and inserted into the slide hole 34 and projecting rearward;
An annular engaging portion 52 formed at the front center of the pinion gear 50;
A handle 60 formed at the center of the rear surface of the pinion gear 50 for rotating the pinion gear 50;
A screw hole (62) formed in the handle (60);
A spring seat 53 installed at an end of the hollow hollow shaft 51;
A connecting bolt 63 penetrating through the center of the spring seat 53 and the hollow hollow shaft 51 and coupled to the screw hole 62 formed in the handle 60;
A clutch spring 52 that is fitted on an outer peripheral surface of the hollow shaft 51 and repulsive between the spring seat 53 and the slider 33 so that the pinion gear 50 and the rack gear 40 mesh with each other, (70);
A tapped hole 35 formed in the slider 33;
A pressure washer 80 of a T-shaped cross section fitted in the vertical guide slot 22 and having a through hole 81 coinciding with the center of the tap hole 35;
A fixing bolt 82 coupled to the tap hole 35 through the through hole 81 formed in the pressure washer 80;
An interference preventing hole (36) formed on a side surface of the connecting rib (32) to prevent interference between the fixing bolt (82) and the connecting rib (32);
Wherein the sprinkler head height adjusting device comprises: The method according to claim 1,
A central protrusion 42 formed at the center of a side edge of the rack gear 40 opposite to the teeth 41;
An engaging hole 23h formed in the side rib 23 formed at the edge of the angle 20 for inserting the central protrusion 42;
Bending portions 43 and 44 respectively formed at upper and lower ends of the rack gear 40;
Square holes 24a and 24b formed in the angle 20 for inserting the bent portions 43 and 44;
Wherein the sprinkler head height adjusting device comprises:
KR1020170165042A 2017-12-04 2017-12-04 Height Adjustment Device for Fire Sprinkler Head KR101855342B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102154179B1 (en) * 2019-05-14 2020-09-10 최영표 connecting device sprinkler head adjusting angle, up and down
CN116271611A (en) * 2023-02-17 2023-06-23 中交第一公路勘察设计研究院有限公司 Highway tunnel non-pressure-storage rotary superfine dry powder automatic fire extinguishing robot

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200314392Y1 (en) * 2002-09-11 2003-05-27 김시훈 Fixing devices for Sprinkler flexible joint
KR200402042Y1 (en) * 2005-08-24 2005-11-24 서명열 Height Adjustor for Sprinkler Flexible Joint
KR20080041983A (en) * 2006-11-08 2008-05-14 고려피팅 주식회사 Bracket for holding a sprinkler
KR20090008679U (en) * 2008-02-25 2009-08-28 박춘웅 Elbow bracket assembly for fire fighting cooler
KR20100001841U (en) * 2008-08-12 2010-02-22 주정애 Connecting structure a braket and an elbow for sprinkler
KR20110103071A (en) * 2010-03-12 2011-09-20 주식회사 아세아유니온 Fixing apparatus of sprinkler for adjusting height
KR20160002172U (en) * 2014-12-15 2016-06-23 박미순 a hi-low positioning device
KR101647971B1 (en) 2015-06-17 2016-08-19 김선학 Sprinkler for firefighting

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200314392Y1 (en) * 2002-09-11 2003-05-27 김시훈 Fixing devices for Sprinkler flexible joint
KR200402042Y1 (en) * 2005-08-24 2005-11-24 서명열 Height Adjustor for Sprinkler Flexible Joint
KR20080041983A (en) * 2006-11-08 2008-05-14 고려피팅 주식회사 Bracket for holding a sprinkler
KR20090008679U (en) * 2008-02-25 2009-08-28 박춘웅 Elbow bracket assembly for fire fighting cooler
KR20100001841U (en) * 2008-08-12 2010-02-22 주정애 Connecting structure a braket and an elbow for sprinkler
KR20110103071A (en) * 2010-03-12 2011-09-20 주식회사 아세아유니온 Fixing apparatus of sprinkler for adjusting height
KR20160002172U (en) * 2014-12-15 2016-06-23 박미순 a hi-low positioning device
KR101647971B1 (en) 2015-06-17 2016-08-19 김선학 Sprinkler for firefighting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102154179B1 (en) * 2019-05-14 2020-09-10 최영표 connecting device sprinkler head adjusting angle, up and down
CN116271611A (en) * 2023-02-17 2023-06-23 中交第一公路勘察设计研究院有限公司 Highway tunnel non-pressure-storage rotary superfine dry powder automatic fire extinguishing robot

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