JP4239224B1 - Sprinkler equipment - Google Patents

Abstract

A sprinkler device capable of securing a biasing force for biasing a cover main body to a ceiling panel is provided.
A sprinkler device according to the present invention is provided on a back side of a ceiling panel, a cover body comprising a cylindrical frame and a disc-shaped lid attached to an opening of the ceiling panel. The fixing unit 8 for fixing the pipe connection joint 6 for connecting the water supply pipe 3 and the sprinkler head part 4, the one end 20a is attached to the frame of the cover body, and the other end 20b is attached to the fixing unit. A tension coil spring 20 for urging the cover body against the ceiling panel, and the frame body of the cover body protrudes upward from the annular support portion 26 to fix the outer edge of the lid body. 30, and these protrusions 28 include a tension coil spring attachment portion 22 including a plurality of attachment positions 22 a and 22 b to which one end portion of the tension coil spring is attached.
[Selection] Figure 1

Description

  The present invention relates to a sprinkler device, and more particularly, to a sprinkler device that is attached to a ceiling of a building or the like and automatically sprinkles water from a water supply pipe when a fire is detected.

  2. Description of the Related Art Conventionally, there is known a sprinkler device that is attached to a ceiling or the like of a building and detects water and automatically sprinkles water from the ceiling or the like. In conventional sprinkler devices, when inspecting pipe connection joints, etc., of sprinkler devices installed on the back side of the ceiling of a building, the inspection openings in the ceiling panel located below the pipe connection joints are connected to pipe connection joints, etc. It can be accessed and inspected. In addition, a cover main body including a lid that covers the opening is attached to the opening for inspection when the sprinkler device is used. One end of the tension coil spring is attached to a part of the cover body, and the other end of the tension coil spring is attached to a fixing means for fixing a pipe connection joint or the like on the back side of the ceiling. It is pulled up until it abuts against the ceiling panel surface by the tension of the spring (see, for example, Patent Document 1).

JP-A-2005-319278 (pages 15 to 16, FIG. 11)

  However, in the above-described conventional sprinkler device, the tension coil spring is attached to the fixing means for fixing the cover main body and the pipe connection joint on the back side of the ceiling so that the coil center axis extends in the vertical direction. When the height dimension of the spring is low, the height dimension of the fixing means that can be mounted is also low, so that the spring height direction (vertical direction) enough to allow the tension coil spring to sufficiently act is secured. It is difficult. Considering that it is necessary to pull down the cover body when installing it, the tension coil spring cannot be made so strong that sufficient spring tension is obtained to pull the cover body up until it abuts against the ceiling panel surface. Therefore, there is a problem that the cover main body cannot be reliably urged and held on the ceiling panel.

  Accordingly, the present invention has been made to solve the above-described problems of the prior art and to meet the conventional demands, and can secure a biasing force for biasing the cover body to the ceiling panel. An object of the present invention is to provide a sprinkler device that can be reliably urged and held on a ceiling panel.

In order to achieve the above object, the present invention is a sprinkler device that is attached to a ceiling panel of a building and senses a fire and automatically sprinkles water from a water supply pipe, and is formed on the ceiling panel. A cover main body covering the inspection opening, the cover main body being attached to the inspection opening, a cylindrical frame supported by the frame, closing the inspection opening and opening for watering The cover body formed of a disc-shaped lid formed with a portion, a sprinkler head section that is inserted into the watering opening of the cover body and sprays water, and is provided on the back side of the ceiling panel, A pipe connecting part for connecting the water supply pipe and the sprinkler head part; a fixing means for fixing the pipe connecting part provided on the back side of the ceiling panel; and one end part of the frame of the cover body And an urging means for urging the cover main body against the ceiling panel and having the other end attached to the fixing means, and the frame body of the cover main body is a bottom surface portion of the lid body And a plurality of projecting portions projecting upward from the support portion to fix the outer edge of the lid body, and the plurality of projecting portions of the frame body include the support portions of the frame body. The inner flange portion that protrudes inward from the base end portion of the projecting portion of the frame body and extends along the circumferential direction, and the outer flange portion that protrudes outward from the base end portion of the projecting portion and extends in the circumferential direction are defined. When the cover body is attached to the inspection opening, the inner flange portion supports the outer periphery of the bottom surface of the lid, and the outer flange portion is configured to support the inspection opening. Some of these multiple protrusions The exit portion includes a biasing means mounting portion including a plurality of mounting positions to which one end of the biasing means is mounted, and according to the mounting position of the biasing means mounting portion to which one end of the biasing means is mounted, The urging force for urging the cover main body to the ceiling panel can be adjusted.
In the sprinkler device of the present invention configured as described above, when the cover body is attached to the inspection opening of the ceiling panel, the cover body is moved by the urging means attached to the frame body and the fixing means of the cover body. Energized by the ceiling panel. Even if the installation position of the sprinkler device changes, such as when the thickness of the ceiling panel is changed or the installation position of the fixing means in the height direction is changed, it is attached to the urging means attachment portion of the frame of the cover body. By appropriately selecting the attachment position of the urging means, the urging force for urging the cover body to the ceiling panel can be adjusted. Therefore, when the cover body is attached to the inspection panel opening, a predetermined amount or more is required. The urging force can be maintained, and the cover body can be reliably urged and held on the ceiling panel. Further, since the plurality of projecting portions of the frame body define the support portion of the frame body as the inner flange portion and the outer flange portion, the inner flange portion of the support portion of the frame body when the cover body is attached to the opening of the ceiling panel. Can support the outer periphery of the bottom of the lid from the front side of the ceiling panel, and the outer flange of the support of the frame can support the opening of the ceiling panel from the front side of the ceiling panel. Can be attached to.

In the present invention, it is preferable that the lid body is used by directly using the cut-out portion of the ceiling panel when the ceiling panel is cut out to form the opening.
In the sprinkler device of the present invention configured as described above, the cut-out portion of the ceiling panel when forming the inspection panel opening can be effectively used as it is without separately forming a lid. Construction can be done easily. In addition, since the lid body is made of the same material as the ceiling panel, the appearance on the surface of both the cover body and the ceiling panel can be matched when the cover body is attached to the inspection panel opening. A sense of unity can be produced. Moreover, when the thickness dimension of the ceiling panel is thick, the thick ceiling panel and the urging means are used by using the urging means mounting portion at a position where the urging means mounting portion provided on the projecting portion of the frame is not hidden. Can be prevented from interfering with each other.

In this invention, it is preferable that the protrusion part of the said frame body containing the said biasing means attachment part is comprised by the at least one pair of protrusion part which opposes.
In the sprinkler device of the present invention configured as described above, since the projecting portion of the frame body including the biasing means mounting portion is configured by at least a pair of projecting portions facing each other, the cover body is provided with an inspection opening for the ceiling panel. When attached to the part, the cover body can be stably urged and held on the ceiling panel by the urging means attached to each of the urging means attaching parts facing the frame of the cover body. .

In the present invention, it is preferable that the plurality of attachment positions of the urging means attachment portion of the protrusion are arranged in the vertical direction.
In the sprinkler device of the present invention configured as described above, even if the installation position of the sprinkler device changes, such as when the thickness of the ceiling panel is changed or the installation position of the fixing means in the height direction is changed, By appropriately selecting the mounting position arranged in the vertical direction when attaching one end of the means to the biasing means mounting portion, the biasing force for biasing the cover body to the ceiling panel can be adjusted. When attached to the inspection panel opening, the urging force exceeding a predetermined value can be maintained, and the cover body can be reliably urged and held on the ceiling panel.

In the present invention, the plurality of attachment positions of the urging means attachment portion of the protrusion may be arranged obliquely to each other.
In the sprinkler device of the present invention configured as described above, even if the installation position of the sprinkler device is changed, such as when the thickness of the ceiling panel is changed or the installation position of the fixing means in the height direction is changed. Since the biasing force for biasing the cover body to the ceiling panel can be adjusted by appropriately selecting an attachment position arranged in an oblique direction when attaching one end of the biasing means to the biasing means mounting portion, the cover body When the is attached to the inspection opening of the ceiling panel, an urging force exceeding a predetermined value can be maintained, and the cover body can be reliably urged and held on the ceiling panel.

In this invention, it is preferable that the height from the base end part of the said protrusion part to the uppermost attachment position of the said biasing means attachment part is larger than the thickness of a ceiling panel or a cover body.
In the sprinkler device of the present invention configured as described above, even when the thickness of the ceiling panel or the lid is thick, it is possible to secure at least the uppermost mounting position of the urging means mounting portion. When the thickness is small, the lower mounting position of the urging means mounting portion can be used. For this reason, even if the installation position of the sprinkler device changes, such as when the thickness of the ceiling panel is changed or the installation position of the fixing means in the height direction is changed, it is attached to the urging means attachment part of the cover body frame The urging force for urging the cover body to the ceiling panel can be adjusted by appropriately selecting the mounting position of the urging means to be applied, and when the cover body is attached to the inspection panel opening, the predetermined amount or more The urging force can be maintained, and the cover body can be reliably urged and held on the ceiling panel.

In the present invention, it is preferable that the urging means having one end attached to the urging means attaching portion of the protrusion and the other end attached to the fixing means is a tension coil spring.
In the sprinkler device of the present invention configured as described above, even if the installation position of the sprinkler device changes, such as when the thickness of the ceiling panel is changed or the installation position of the fixing means in the height direction is changed, the cover body Since the tension of the tension coil spring that biases the cover body to the ceiling panel can be adjusted by appropriately selecting the attachment position of the tension coil spring whose one end is attached to the biasing means attachment portion of the frame body, When the cover body is attached to the inspection opening of the ceiling panel, the tension of the tension coil spring can be maintained, and the cover body can be reliably urged and held on the ceiling panel.

In the present invention, it is preferable that the fixing means is fixed to a field edge that is fixed to the back side of the ceiling panel and supports the ceiling panel from the back side.
In the sprinkler device of the present invention configured as described above, since the fixing means to which the other end of the urging means is attached is fixed to the field edge, the ceiling panel is thin and the fixing means is attached to the ceiling panel. Compared with the case where it fixes, the distance of the biasing means attaching part of the frame of a cover main body and the fixing means can be ensured by the size of a field edge. Therefore, when the cover body is attached to the inspection opening of the ceiling panel, the urging force (tensile force of the tension coil spring) of the urging means attached to the urging means attaching portion and the fixing means is maintained at a predetermined level or more. The main body can be securely urged and held on the ceiling panel.

In the present invention, the biasing means mounting portion of the frame body to which one end of the tension coil spring is attached is positioned outward and downward with respect to the biasing means mounting portion of the fixing means to which the other end of the tension coil spring is attached. It is preferable that it is comprised.
In the sprinkler device of the present invention configured as described above, when the thickness of the ceiling panel is thin, the vertical position between the biasing means mounting portion of the frame body to which the tension coil spring is attached and the biasing means mounting portion of the fixing means. Even if the direction distance is shortened, the horizontal distance between the biasing means mounting portion of the frame body to which the tension coil spring is attached and the biasing means mounting portion of the fixing means can be secured. When attached to the inspection opening of the panel, the tension of the tension coil spring can be maintained at a predetermined level or more, and the cover body can be reliably urged and held on the ceiling panel.

In the present invention, the tension coil spring has an acute angle formed between the coil center axis and the surface of the ceiling panel when attached to the biasing means mounting portion of the frame and the biasing means mounting portion of the fixing means. It is preferable that it is comprised so that it may become.
In the sprinkler device of the present invention configured as described above, when the thickness of the ceiling panel is thin, the vertical position between the biasing means mounting portion of the frame body to which the tension coil spring is attached and the biasing means mounting portion of the fixing means. Even if the direction distance is shortened, the horizontal distance between the biasing means mounting portion of the frame body to which the tension coil spring is attached and the biasing means mounting portion of the fixing means can be secured. When attached to the inspection opening of the panel, the tension of the tension coil spring can be maintained at a predetermined level or more, and the cover body can be reliably urged and held on the ceiling panel.

In the present invention, each of the plurality of attachment positions of the biasing means attachment portion of the protruding portion to which one end portion of the tension coil spring is attached is constituted by a concave groove to which one end portion of the tension coil spring is detachably attached. It is preferable that
In the sprinkler device of the present invention configured as described above, since one end of the tension coil spring can be detachably attached to the concave grooves at the plurality of attachment positions of the urging means attachment portion of the protrusion, the ceiling Even if the installation position of the sprinkler device changes, such as when the thickness of the panel is changed or the installation position of the fixing means in the height direction is changed, one end is attached to the urging means attachment portion of the cover body frame By appropriately selecting the attachment position of the tension coil spring, the tension of the tension coil spring that urges the cover body against the ceiling panel can be adjusted. Further, when the cover body is attached to the inspection opening of the ceiling panel, the tension of the tension coil spring can be maintained, and the cover body can be reliably urged and held on the ceiling panel.

  According to the sprinkler device of the present invention, it is possible to ensure a biasing force that biases the cover body to the ceiling panel, and it is possible to reliably bias and hold the cover body against the ceiling panel. In addition, installation can be performed easily.

Hereinafter, embodiments of the sprinkler device of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a schematic perspective view of a sprinkler device according to a first embodiment of the present invention viewed from the back side of a ceiling panel, and FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
As shown in FIG.1 and FIG.2, the sprinkler apparatus 1 of this embodiment is attached to the ceiling panel 2 of a building, detects a fire, and sprinkles the water from the water supply pipe 3 automatically. The sprinkler device 1 includes a sprinkler head portion 4 that is provided on the front side of the ceiling panel 2 and sprays water.
Moreover, the sprinkler device 1 includes a pipe connection joint 6 for preventing stagnant water, which is a pipe connection part that connects a water supply pipe 3 and a sprinkler head part 4 provided on the back side of the ceiling panel 2.
Furthermore, the sprinkler device 1 includes a fixing unit 8 that is provided on the back side of the ceiling panel 2 and is a fixing unit that fixes the pipe connection joint 6. The fixing unit 8 is fixed to the back side of the ceiling panel 2 and is fixed to the ceiling panel 2. 2 is fixed to a field edge 10 that supports 2 from the back side. The fixing unit 8 includes a pair of rails 8a extending between the field edges 10, and these rails 8a are fixed to the field edge 10 via brackets 8b. The rail 8a is detachably attached to the bracket 8b by an attachment clip 8c. Furthermore, the fixing unit 8 includes a fixing metal fitting 8d fixed so as to bridge between the pair of rails 8a, and the pipe connection joint 6 is fixed to the fixing unit 8 by the fixing metal fitting 8d.
In the sprinkler device 1 according to the present embodiment, a case in which building wood is used as the field edge 10 to which the fixing unit 8 is fixed will be described, but the present invention can be applied even when a light steel frame is used as the field edge 10. is there.

The sprinkler device 1 includes a cover body 12. Furthermore, in order to allow access from the front side of the ceiling panel 2 to the back side for installation and inspection of the pipe connection joint 6 and the fixing unit 8 etc. on the back side of the ceiling panel 2, a circle is formed so as to penetrate the ceiling panel 2. An opening 14 having a shape is formed, and the cover body 12 is attached to the opening 14 so as to be covered.
The cover body 12 is made of a metal cylindrical frame 16 (details will be described later) fitted into the opening 14, is supported by the frame 16, closes the opening 14, and allows the sprinkler head 4 to be inserted. A disc-shaped lid 18 is provided. The lid 18 is used by directly using the cut-out portion of the ceiling panel 2 when the opening 14 is formed by cutting the ceiling panel 2, and a sprinkler is provided at the center of the cut-out portion. A water spray opening 18 a into which the head portion 4 is inserted is further formed as a lid 18.
Furthermore, the sprinkler device 1 includes two tension coil springs 20 that are urging means for urging the cover body 12 against the ceiling panel 2 when the cover body 12 is attached to the opening 14 of the ceiling panel 2. The two tension coil springs 20 have the same specifications, and a hook portion 20a, which is one end thereof, has a pair of tension coil spring mounting portions 22 facing the frame body 16 of the cover body 12 (details will be described later). ). On the other hand, each of the hook portions 20 b which is the other end portion of the two tension coil springs 20 is attached to a pair of opposing tension coil spring attachment portions 24 provided on the fixing bracket 8 d of the fixing unit 8.
In particular, as shown in FIG. 2, the distance between the pair of opposing tension coil spring attachment portions 22 of the frame body 16 of the cover body 12 is larger than the interval between the pair of tension coil spring attachment portions 24 opposed to the fixed unit 8. The tension coil spring mounting portion 22 of the frame body 16 of the cover main body 12 is positioned outward and downward with respect to the tension coil spring mounting portion 24 of the fixed unit 8. When both ends of the tension coil spring 20 are attached to the tension coil spring attachment portions 22 and 24 of the cover body 12 and the fixed unit 8, the tension coil spring 20 has its coil center axis 20c extending obliquely upward. It is arranged. That is, in the state where the tension coil spring 20 is attached to the tension coil spring attachment portions 22 and 24, the angle formed by the coil center axis 20c of the tension coil spring 20 and the surface of the ceiling panel 2 is an acute angle α.

Next, the structure of the frame body 16 of the cover main body 12 and the tension coil spring mounting portion 22 will be described in detail.
FIG. 3 is an exploded perspective view showing a cover body of the sprinkler device of the present embodiment. As shown in FIG. 3, the frame body 16 of the cover body 12 is opposed to an annular support portion 26 on which the lid body 18 is placed and supporting the bottom surface portion of the lid body 18, protruding upward from the support portion 26. Two pairs of thin projections 28 and 30 having different heights are provided.
The two pairs of projecting portions 28 and 30 include an inner flange portion 26a that projects the support portion 26 of the frame body 16 inward from the base end portions of the projecting portions 28 and 30 of the frame body 16 and extends in the circumferential direction. When the cover main body 12 is attached to the opening 14 of the ceiling panel 2, the inner flange portion 26a is defined as an outer flange portion 26b that protrudes outward from the base end portion of the protruding portions 28 and 30 and extends along the circumferential direction. The outer periphery of the bottom surface of the lid 18 is supported, and the outer flange portion 26 b is configured to contact the opening 14 of the ceiling panel 2.
Furthermore, these two pairs of protrusions 28 and 30 both abut against the outer edge 18 b of the lid 18 and fix the lid 18. In other words, the distance between the opposing protrusions of the two pairs of protrusions 28 and 30 is substantially equivalent to the outer diameter of the lid 18. Further, the pair of projecting portions 28 having a high height of the two pairs of projecting portions 28 and 30 includes the tension coil spring mounting portion 22 described above. The tension coil spring attachment portion 22 includes two attachment positions 22 a and 22 b to which the hook portion 20 a of the tension coil spring 20 can be attached.

4 is a partially enlarged view showing a portion of a protruding portion including a tension coil spring mounting portion in the frame of the cover main body of FIG. In addition, in FIG. 4, the tension coil spring and its hook part in the state attached to the tension coil spring attachment part are shown with the broken line.
As shown in FIG. 4, the hook portions 20 a of the tension coil spring 20 are detachably attached to the two attachment positions 22 a and 22 b of the tension coil spring attachment portion 22 in the protruding portion 28 of the frame body 16 of the cover body 12. It is comprised by the concave-shaped groove | channel where the upper direction recessed was formed. In addition, about the concave groove shape of these attachment positions 22a and 22b, the groove | channel shape in which the downward direction was dented or one of right and left was recessed, and the hook part 20a of the tension coil spring 20 is attached so that attachment or detachment is possible. Any groove shape can be used.
The two attachment positions 22a and 22b are arranged in the vertical direction, and when the hook portion 20a of the tension coil spring 20 is attached to the tension coil spring attachment portion 22, the attachment position of any of the attachment positions 22a and 22b is determined. By appropriately selecting, the biasing force for biasing the cover body 12 to the ceiling panel 2 can be adjusted.
Further, the height from the base end portion of the projecting portion 28 of the frame body 16 to the uppermost mounting position 22b of the tension coil spring mounting portion 22 is designed to be larger than the thickness of the ceiling panel 2 or the lid body 18. Yes.
In the present embodiment, the number of mounting positions 22a and 22b arranged in the vertical direction on the protruding portion 28 of the frame body 16 is set to two as an example, but the ceiling panel 2 or lid body to be handled is set. Depending on the thickness range of 18, it may be set to 3 or more.

Next, the operation of the sprinkler device according to the first embodiment of the present invention described above will be described.
First, when the cover body 12 is used, the cut-out portion of the ceiling panel 2 when the opening 14 of the ceiling panel 2 is formed is used as the lid body 18 as it is, and this lid body 18 is used as the frame body 16 of the cover body 12. Place on the support 26. At this time, the inner flange portion 26 a of the support portion 26 of the frame body 16 of the cover body 12 supports the outer peripheral portion of the bottom surface of the lid body 18 from the front side of the ceiling panel 2, and the plurality of projecting portions 28 of the frame body 16 of the cover body 12. , 30 fix the outer edge of the lid 18.
Further, when such a cover main body 12 is attached to the opening 14 of the ceiling panel 2, the tension coils attached to the frame body 16 of the cover main body 12 and the respective tension coil spring attachment portions 22 and 24 of the fixed unit 8. The cover body 12 is urged toward the ceiling panel 2 by the tension of the spring 20. At this time, the outer flange portion 26 b of the support portion 26 of the frame body 16 of the cover body 12 abuts on the opening portion 14 of the ceiling panel 2 and is supported from the front side of the ceiling panel 2.
Further, the distance between the pair of tension coil spring mounting portions 22 facing the frame body 16 of the cover body 12 is larger than the distance between the pair of tension coil spring mounting portions 24 facing the fixed unit 8. The tension coil spring mounting portion 22 of the frame body 16 is located on the outer lower side with respect to the tension coil spring mounting portion 24 of the fixed unit 8. For this reason, when both ends of the tension coil spring 20 are attached to the tension coil spring attachment portions 22 and 24 of the cover body 12 and the fixed unit 8, the coil center axis 20c of the tension coil spring 20 is inclined upward. The coil center axis 20c and the ceiling panel 2 are arranged so as to extend at an acute angle α. As a result, sufficient tension is applied to both hook portions 20a and 20b of the tension coil spring 20 to maintain the state in which the cover body 12 is urged against the ceiling panel 2.

According to the sprinkler device 1 according to the first embodiment of the present invention described above, the installation position of the sprinkler device 1 is changed such that the thickness of the ceiling panel 2 is changed or the installation position in the height direction of the fixed unit 8 is changed. Even if changed, the cover body 12 is biased to the ceiling panel 2 by appropriately selecting the attachment positions 22a and 22b of the tension coil spring 20 attached to the tension coil spring attachment portion 22 of the frame body 16 of the cover body 12. Since the force (tension of the tension coil spring) can be adjusted, when the cover body 12 is attached to the opening 14 of the ceiling panel, a biasing force (tension of the tension coil spring) of a predetermined level or more is maintained, and the cover body 12 Can be reliably urged and held on the ceiling panel 2.
According to the sprinkler device 1 according to the present embodiment, the plurality of projecting portions 28 and 30 of the frame body 16 of the cover body 12 define the support portion 26 of the frame body 16 into the inner flange portion 26a and the outer flange portion 26b. When the main body 12 is attached to the opening 14 of the ceiling panel 2, the inner flange portion 26 a of the support portion 26 of the frame body 16 supports the outer peripheral portion of the bottom surface of the lid body 18 from the front side of the ceiling panel 2. The outer flange portion 26 b of the portion 26 can abut on the opening 14 of the ceiling panel 2 from the front side of the ceiling panel 2, and the cover body 12 can be securely attached to the ceiling panel 2.
According to the sprinkler device 1 according to the present embodiment, since the projecting portion 28 of the frame body 16 including the tension coil spring mounting portion 22 is constituted by a pair of projecting portions facing each other, the cover main body 12 is formed as an opening portion of the ceiling panel 2. 14, the cover body 12 is stably and securely attached to the ceiling panel 2 by the two tension coil springs 20 attached to the opposing tension coil spring attachment portions 22 of the frame body 16 of the cover body 12. Can be held in force.

According to the sprinkler device 1 according to the present embodiment, since the attachment positions 22a and 22b of the tension coil spring attachment portion 22 are arranged in the vertical direction in the protruding portion 28 of the frame body 16 of the cover body 12, the thickness of the ceiling panel 2 is increased. Even when the installation position of the sprinkler device 1 is changed, for example, when the installation position of the sprinkler device 1 is changed, such as when the height of the fixed unit 8 is changed, or when the hook portion 20a of the tension coil spring 20 is attached to the tension coil spring attachment portion Since the urging force for urging the cover body 12 to the ceiling panel 2 can be adjusted by appropriately selecting one of the attachment positions 22a and 22b, the cover body 12 is attached to the opening 14 of the ceiling panel 2. Therefore, the cover body 12 can be reliably urged and held on the ceiling panel 2 while maintaining a predetermined urging force.
According to the sprinkler device 1 according to the present embodiment, the height of the ceiling panel 2 is the height from the base end portion of the protruding portion 28 of the frame body 16 of the cover body 12 to the uppermost mounting position 22b of the tension coil spring mounting portion 22. Therefore, even when the ceiling panel 2 or the lid 18 is thick, at least the uppermost mounting position 22b of the tension coil spring mounting portion 22 can be secured, and the ceiling panel 2 or the lid 18 is thin. For this, the lower mounting position 22a of the tension coil spring mounting portion 22 can be used.
According to the sprinkler device 1 according to the present embodiment, since the fixing unit 8 including the tension coil spring mounting portion 24 to which the hook portion 20b of the tension coil spring 20 is mounted is fixed to the field edge 10, the frame of the cover body 12 The variation factor of the vertical distance between the tension coil spring mounting portion 22 of the body 16 and the tension coil spring mounting portion 24 of the fixed unit 8 is only the thickness of the ceiling panel 2. For this reason, the tension coil spring 20 attached to the extension coil spring attachment portions 22 and 24 can sufficiently extend, and the vertical component of the tension can sufficiently lift the cover body 12. Therefore, when the cover body 12 is attached to the opening 14 of the ceiling panel 2, the tension of the tension coil spring can be maintained at a predetermined level or more, and the cover body can be reliably urged and held on the ceiling panel.

According to the sprinkler device 1 according to the present embodiment, the tension coil spring mounting portion 22 of the frame body 16 of the cover body 12 is positioned outward and downward with respect to the tension coil spring mounting portion 24 of the fixed unit 8. When both ends are attached to the respective extension coil spring attaching portions 22 and 24 of the cover body 12 and the fixed unit 8, the extension coil spring 20 has its coil center axis 20c extending obliquely upward, and the coil center axis 20c and the ceiling. It arrange | positions so that the angle which the surface of the panel 2 makes may become acute angle (alpha). For this reason, when the thickness of the ceiling panel 2 is thin, the vertical distance between the tension coil spring attachment portion 22 of the frame 16 to which the tension coil spring 20 is attached and the tension coil spring attachment portion 24 of the fixed unit 8 is short. Even in such a case, the horizontal distance between the tension coil spring mounting portions 22 and 24 is ensured, and the tension coil spring 20 mounted on the tension coil spring mounting portions 22 and 24 can sufficiently extend, and the tension in the vertical direction. Since the component can sufficiently lift the cover main body 12, the tension of the tension coil spring 20 is maintained at a predetermined level or more when the cover main body 12 is attached to the opening 14 of the ceiling panel 2. Can be securely urged and held.
According to the sprinkler device 1 according to the present embodiment, the hook portion 20a of the tension coil spring 20 is inserted into the concave groove recessed above the attachment positions 22a and 22b of the tension coil spring attachment portion 22 in the protruding portion 28 of the frame body 16. Even if the installation position of the sprinkler device 1 changes, such as the thickness of the ceiling panel 2 is changed or the installation position in the height direction of the fixed unit 8 is changed. By appropriately selecting the attachment positions 22a and 22b of the tension coil spring 20 attached to the tension coil spring attachment portion 22 of the frame body 16, the urging force for urging the cover body 12 to the ceiling panel 2 can be adjusted. Moreover, when the cover main body 12 is attached to the opening 14 of the ceiling panel 2, an urging force exceeding a predetermined value can be maintained, and the cover main body can be reliably urged and held on the ceiling panel.
According to the sprinkler device 1 according to the present embodiment, the lid body 18 is separately formed by providing the plurality of attachment positions 22a and 22b of the tension coil spring attachment portion on the protruding portion 28 of the frame body 16 of the cover body 12. In addition, since the cut-out portion of the ceiling panel 2 when the opening 14 of the ceiling panel 2 is formed can be effectively used as it is, the installation can be easily performed. Further, since the lid 18 is made of the same material as that of the ceiling panel 2, the appearance on the surfaces of the cover body 12 when the cover body 12 is attached to the opening 14 of the ceiling panel 2 can be made to coincide with each other. A sense of unity with the panel can be generated.
In the sprinkler device 1 according to the first embodiment of the present invention described above, the example in which the tension coil spring 20 is used as the biasing means for biasing the cover body 12 to the ceiling panel 2 has been described. The present invention is not limited to a spring, but can be applied to other types of spring elements.

Next, a sprinkler device according to a modification of the first embodiment of the present invention will be described.
FIG. 5 is a sectional view similar to FIG. 2 showing a sprinkler device according to a modification of the first embodiment of the present invention. Here, in FIG. 5, about the same part as the sprinkler apparatus of 1st Embodiment shown in FIG. 2, the same code | symbol is attached | subjected and those description is abbreviate | omitted.
As shown in FIG. 5, the sprinkler device 50 of the present embodiment is different in that the thickness of the ceiling panel 52 is thicker than the thickness of the ceiling panel 2 in the case of the first embodiment. As in the first embodiment, the cover 56 of the cover main body 54 is used by directly using the cutout portion of the ceiling panel 52 when the ceiling panel 52 is cut out to form the opening 58. .
Further, since the thickness of the ceiling panel 52 and the lid body 56 is thicker than the height of the lower mounting position 22a of the tension coil spring mounting portion 22 of the cover body 54, the thickness of the ceiling panel 52 and the lid body 56 becomes an obstacle. However, since the thickness of the ceiling panel 52 and the lid 56 is lower than the height of the upper mounting position 22b of the tension coil spring mounting portion 22 of the cover main body 54, the tension coil spring 20 The hook portion 20 a can be attached to the upper attachment position 22 b of the tension coil spring attachment portion 22 of the cover body 54.

  According to the sprinkler device 50 according to the modification of the first embodiment of the present invention, even if the thickness of the ceiling panel 52 and the lid 56 is changed and the installation position in the height direction of the fixed unit 8 is changed, the tension coil spring The urging force (the tension of the tension coil spring 20) that urges the cover body 54 to the ceiling panel 52 by appropriately selecting the attachment positions 22a and 22b of the tension coil spring attachment portion 22 of the cover body 54 to which the 20 hook portions 20a are attached. ) Can be adjusted. Further, when the cover main body 12 is attached to the opening 58 of the ceiling panel, an urging force (a tension of the tension coil spring 20) of a predetermined value or more is maintained, and the cover main body 54 is reliably urged and held on the ceiling panel 52. be able to.

Next, a sprinkler device according to a second embodiment of the present invention will be described.
FIG. 6 is a partially enlarged view showing a protruding portion including a tension coil spring mounting portion in the frame of the cover body of the sprinkler device according to the second embodiment of the present invention. Here, in FIG. 6, about the same part as the part of the protrusion part containing the tension coil spring attachment part in the frame of the cover main body of the sprinkler apparatus of 1st Embodiment shown in FIG. 4, the same code | symbol is attached | subjected, Those explanations are omitted.
As shown in FIG. 6, in the configuration of the sprinkler device 70 of the present embodiment, two attachment positions where the tension coil spring attachment portions 78 in the protrusions 76 of the frame body 74 of the cover body 72 are arranged obliquely to each other. The configuration differs from the sprinkler device 1 of the first embodiment in that it includes 78a and 78b. In the present embodiment, the number of mounting positions 78a and 78b that are arranged obliquely with respect to the projecting portion 76 of the frame 74 is set to two as an example, but is set to three or more. Alternatively, additional mounting positions adjacent to the mounting positions 78a and 78b in the vertical and horizontal directions may be additionally provided.

  According to the sprinkler device 70 according to the present embodiment, similarly to the first embodiment described above, even if the thickness of the ceiling panel 2 is changed or the installation position in the height direction or the horizontal direction of the fixed unit 8 is changed, When attaching the hook portion 20a of the tension coil spring 20 to the tension coil spring attachment portion 78, an urging force for urging the cover body 72 to the ceiling panel by appropriately selecting attachment positions 78a and 78b arranged in an oblique direction. (Tension of the tension coil spring 20) can be adjusted, and when the cover body is attached to the opening of the ceiling panel, a biasing force (tension of the tension coil spring 20) higher than a predetermined value is maintained, and the cover body is secured to the ceiling panel. Can be securely urged and held.

1 is a schematic perspective view showing a sprinkler device according to a first embodiment of the present invention. It is II-II sectional drawing of FIG. It is a disassembled perspective view which shows the cover main body of the sprinkler apparatus by 1st Embodiment of this invention. It is the elements on larger scale which show the part of the protrusion part of the frame of the cover main body of FIG. It is sectional drawing which shows the sprinkler apparatus by the modification of 1st Embodiment of this invention. It is the elements on larger scale which show the part of the protrusion part containing the tension coil spring attachment part in the frame of the cover main body of the sprinkler apparatus by 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,50,70 Sprinkler device 2,52 Ceiling panel 3 Water supply pipe 4 Sprinkler head part 6 Piping connection joint 8 Fixing unit 10 Field edge 12,54,72 Cover body 14,58 Ceiling panel opening 16,74 Frame body 18, 56 Cover body lid 18a Sprinkling opening 20 Tension coil spring 20a, 20b Tension coil spring hook part 22, 78 Tension coil spring mounting part 22a, 22b, 78a, 78b Cover body tension Mounting position of coil spring mounting portion 24 Tension coil spring mounting portion of fixed unit 26 Support portion of frame body of cover body 26a Inner flange portion of support portion of frame body of cover body 26b Outer flange of support portion of frame body of cover body Portions 28, 30, 76 Projecting part of the frame of the cover body

Claims (11)

A sprinkler device that is attached to the ceiling panel of a building and automatically sprinkles water from a water pipe when a fire is detected.
A cover main body that covers an opening formed in the ceiling panel, the cover main body being attached to the opening, and supported by the frame to close the opening and for watering The cover body comprising a disc-shaped lid with an opening formed therein;
A sprinkler head that is inserted into the watering opening of the cover body and sprays water;
A pipe connection part provided on the back side of the ceiling panel, connecting the water supply pipe and the sprinkler head part;
A fixing means provided on the back side of the ceiling panel, and fixing the pipe connection portion to the ceiling panel ;
One end portion is attached to the frame of the cover body and the other end portion is attached to the fixing means, and biasing means for biasing the cover body against the ceiling panel,
The frame body of the cover body includes an annular support portion that supports the bottom surface portion of the lid body, and a plurality of projecting portions that protrude upward from the support portion and fix the outer edge of the lid body. The plurality of projecting portions include an inner flange portion projecting the support portion of the frame body inward from the base end portion of the projecting portion of the frame body and extending along the circumferential direction, and an outer side of the base end portion of the projecting portion. When the cover main body is attached to the opening, the inner flange supports the bottom outer periphery of the lid, and the outer flange is the opening. And a part of the plurality of protrusions includes a biasing means mounting portion including a plurality of mounting positions to which one end of the biasing means is mounted, Mounting of biasing means to which one end of biasing means is mounted Depending on the mounting position of the sprinkler device, characterized in that the cover body is configured to be able to adjust the biasing force for biasing the ceiling panel.   The sprinkler device according to claim 1, wherein the lid is used by directly using a cut-out portion of the ceiling panel when the opening is formed by cutting the ceiling panel.   The sprinkler device according to claim 1, wherein the protruding portion of the frame body including the urging means attaching portion is constituted by at least a pair of protruding portions facing each other.   The sprinkler device according to claim 3, wherein a plurality of attachment positions of the urging means attachment portion of the protrusion are arranged in the vertical direction.   The sprinkler device according to claim 3, wherein a plurality of attachment positions of the urging means attachment portion of the protruding portion are arranged obliquely to each other.   The sprinkler device according to claim 4 or 5, wherein a height from a base end portion of the projecting portion to an uppermost mounting position of the biasing means mounting portion is larger than a thickness of the ceiling panel or the lid.   The sprinkler device according to any one of claims 1 to 6, wherein the urging means having one end attached to the urging means attaching portion of the projecting portion and the other end attached to the fixing means is a tension coil spring. The sprinkler device according to any one of claims 1 to 7, wherein the fixing means fixes the pipe connection portion to the ceiling panel via a field edge that supports the ceiling panel from the back side.   The urging means mounting portion of the frame body to which one end of the tension coil spring is attached is configured to be positioned outward and downward with respect to the urging means attachment portion of the fixing means to which the other end of the tension coil spring is attached. The sprinkler device according to claim 7.   The tension coil spring is configured such that the angle formed by the coil center axis and the surface of the ceiling panel is an acute angle when the tension coil spring is attached to the biasing means mounting portion of the frame and the biasing means mounting portion of the fixing means. The sprinkler device according to claim 9.   Each of the plurality of attachment positions of the biasing means attachment portion of the protruding portion to which one end portion of the tension coil spring is attached is constituted by a concave groove to which one end portion of the tension coil spring is detachably attached. Item 8. The sprinkler device according to Item 7.

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