JPH04114360U - sprinkler head - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a sprinkler head with an excellent appearance in which the diffusion nozzle is not always exposed by housing the diffusion nozzle having a water sprinkling port inside an outer cylinder connected to a water supply pipe. [Structure] A diffusion nozzle 8 having a water sprinkling port 10 is housed in a hollow part of an outer cylinder 4 connected to a water supply pipe 2. The diffusion nozzle 8 is removably locked to the outer cylinder 4 by engagement between a protrusion 16 provided thereon and a groove 18 formed in the outer cylinder 4. A stopper 12 is provided at the lower end of the diffusion nozzle 8 to close the lower end opening of the outer tube 4 . When discharging water, the diffusion nozzle 8 is exposed from the outer cylinder 4 by being pressed by the water discharging pressure, and the water from the water supply pipe 2 is diffused and discharged from the water sprinkling port 10.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a sprinkler head, and in particular houses a diffusion nozzle with a water spout. Where possible, sprinkler head improvements can be made to improve the appearance of the equipment. Ru.

0002

[Conventional technology]

Sprinkler heads are connected to water supply pipes installed in the ceiling etc. They are installed at regular intervals on the surface of the well. The conventional sprinkler head is as shown in Figure 3. In addition, there is a connecting part 30 that is mainly connected to a water supply pipe, and a part that diffuses water supplied from the water supply pipe. It consists of a diffusion nozzle 32. In the event of a fire, water leaks from the water supply pipes. Then, the water is diffused and sprayed from the water sprinkling port 34 of the diffusion nozzle 8. This diffusion nozzle 3 2 has the effect of spraying water from the water supply pipe over a wide area, so it is usually placed on the ceiling. It is installed in an exposed state on the surface 36.

0003

[Problem that the idea aims to solve]

However, since a large number of water sprinkling ports 34 are formed in the diffusion nozzle 32, If the diffusion nozzle 32 is always exposed to the ceiling surface 36, the water spout 34 was conspicuous and the appearance was unsightly.

0004 This invention was made in view of the above circumstances, and its purpose is to achieve the same goal as before. The diffuser nozzle, which normally has a water spout, is not exposed. The purpose of the present invention is to provide a sprinkler head with an excellent appearance.

[0005]

[Means to solve the problem]

In order to achieve the above purpose, the present invention uses a hollow tube provided at the end opening of the water supply pipe. an outer cylinder, and a pipe provided in the outer cylinder in communication with the water supply pipe so as to freely protrude from the outer cylinder. a diffusion nozzle having a water sprinkling port; the diffusion nozzle is removably locked in the outer cylinder; The present invention is characterized by comprising an engaging member that is disengaged by water discharge pressure from the water supply pipe.

[0006] Additionally, a sealing member is provided on the outer cylinder to seal between this and the diffusion nozzle. It is characterized by:

[0007]

[Effect]

Regarding the function of the present invention, the diffusion nozzle with the water sprinkling port is normally engaged. It will be housed and held in the outer cylinder by the member, and therefore the diffusion nozzle including the water sprinkling port will be The cables are not exposed on the ceiling, etc., and the appearance of the equipment can be improved. can. On the other hand, in the event of a fire, etc., it can be connected to the water supply pipe and protruded freely from the outer cylinder. The diffuser nozzle that has been pierced receives water discharge pressure from the water supply pipe, and this water discharge pressure The force acts indirectly on the engagement member, and the diffusion nozzle is detached from the outer cylinder, causing the diffusion nozzle to move outward from the outer cylinder. It will stick out. This allows the diffusion nozzle, and ultimately the water spout, to be exposed from the outer cylinder. The water flow from the water supply pipe can be diffused and discharged.

[0008] In addition, a sealing member is provided on the outer cylinder to seal between this and the diffusion nozzle. , Water leakage between the outer cylinder and the diffusion nozzle, which is said to be movable relative to the outer cylinder. etc. can be reliably prevented.

[0009]

【Example】

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Figure 1 is 1 shows a sprinkler head according to an embodiment of the present invention. This example basically consists of A hollow outer cylinder 4 provided at the end opening of the water pipe 2 and an outer cylinder 4 connected to the water supply pipe 2. A diffusion nozzle 8 having a water sprinkling port 10 provided in the interior so as to freely protrude from the diffusion nozzle 8; The nozzle 8 is removably locked in the outer cylinder 4 and released by the water discharge pressure from the water supply pipe 2. It is configured to include a protruding piece 16 and a groove 18 as an engaging member. Also, in the outer cylinder 4, A gasket 20 is provided as a sealing member to seal between the diffusion nozzle 8 and the diffusion nozzle 8. It consists of

0010 Reference numeral 4 in the figure is an outer cylinder formed into a cylindrical body for connecting to the water supply pipe 2, A female threaded portion 6 is formed on the inner wall of the upper end. In this embodiment, the hollow part of the outer cylinder 4 is A diffusion nozzle 8 is housed in the part. The diffusion nozzle 8 is an outer tube that can be stored in the outer tube 4. It is formed into a cylindrical body with a diameter, and a plurality of water sprinkling ports 10 are provided at equal intervals on the peripheral wall. It is. Further, the lower end of the diffusion nozzle 8 is provided with a lower end opening of the outer cylinder 4. A plug body 12 is integrally formed. The size of the plug 12 is the outer diameter of the diffusion nozzle 8. It is shaped to be larger and have a sufficient width to close the lower end opening of the outer cylinder 4. has been completed. Furthermore, a flange 14 is formed at the upper end of the diffusion nozzle 8. The periphery of this flange 14 is slidably abutted against the inner wall of the outer cylinder 4. . When the diffusion nozzle 8 is housed in the hollow part of the outer cylinder 4, the diffusion nozzle 8 is constructed so that the stopper 12 provided on the diffusion nozzle 8 closes the lower end opening of the outer cylinder 4. has been completed. In addition, at the lower part of the outer wall of this diffusion nozzle 8, a flexible member that constitutes an engaging member is provided. A flexible projecting piece 16 is provided, and an inner wall of the outer cylinder 4 is provided with a flexible projecting piece 16 corresponding to the projecting piece 16. A locking groove 18 constituting an engaging member is provided, and the diffusion nozzle 8 is connected to the outer cylinder. It is designed to lock when it is within 4.

[0011] The diffusion nozzle 8 in which the stopper 12 is formed is a metal fuse that melts due to heat. A metal piece (not shown) connected with an ampoule that evaporates due to heat can be used to It is supported by 4. Therefore, the metal fuse may melt due to heat, and the ampoule may evaporates, the supporting action of the diffusion nozzle 8 on the outer cylinder 4 is lost, and the diffusion nozzle 8 is pressed by the water discharge pressure from the water supply pipe 2, and thereby the projecting piece against the groove 18 16 is released and exposed outside the outer cylinder 4.

0012 Note that, as in this embodiment, the plug body 12 is integrally provided with the diffusion nozzle 8 and the outer cylinder 4, when the lower end opening of the outer cylinder 4 is closed, there is no water between the lower end edge of the outer cylinder 4 and the plug body 12. It is preferable to interpose a gasket 20 to prevent this. In addition, this A heat-fusible metal fuse is provided on top of the socket 20, and this causes the outer cylinder to 4 and the plug body 12, the diffusion nozzle 8 is supported and fixed to the outer cylinder 4 at this part. It is also possible.

[0013] Further, in this embodiment, a protrusion 22 is provided on the inner circumferential wall of the outer cylinder 4, When the diffusion nozzle 8 is pushed out, the diffusion nozzle The flange 14 at the upper end of the diffusion nozzle 8 is locked to this protrusion 22 so that the diffusion nozzle 8 is stopped. It is now possible to do so.

[0014] FIG. 1 shows a sprinkler head configured as described above connected to a water supply pipe 2. It also shows a state where it is installed on the ceiling 24. The outer cylinder 4 of the sprinkler head It is fitted into the well 24 and installed, and the upper part is connected to the water supply pipe 2.

[0015] Usually, as shown in Figure 1, there is a diffusion nozzle in the hollow part of the outer cylinder 4 of the sprinkler head. The nozzle 8 is in a stored state, and the stopper 12 of the diffusion nozzle 8 is at the lower end of the outer cylinder 4. The opening is blocked.

[0016] In the event of a fire, the support and fixation of the diffusion nozzle 8 to the outer cylinder 4 is released due to heat. At the same time, the diffusion nozzle 8 is pressed by the water discharge pressure from the water supply pipe 2, as shown in FIG. The diffusion nozzle 8 is exposed downward from the outer cylinder 4 as shown in FIG. Then, it flows out from water supply pipe 2. The water reaches the diffusion nozzle 8 from the water supply pipe 2 via the outer cylinder 4, and the water reaches the diffusion nozzle 8 through the outer cylinder 4. Water is diffused and sprayed from the water spout 10.

[0017]

[Effect of the idea]

As described above, the sprinkler head of the present invention has a diffusion port with a water sprinkling port. Normally, the nozzle is housed and held in the outer cylinder by the engaging member, and therefore The diffusion nozzle, including the water sprinkling port, is not exposed on the ceiling, etc., and the The appearance can be improved. On the other hand, in the event of a fire, etc., it should be connected to the water supply pipe. A diffusion nozzle that can freely protrude from the outer cylinder receives water discharge pressure from the water supply pipe. As a result, this water discharge pressure acts indirectly on the engagement member, causing the diffusion nozzle to flow from the outer cylinder. is removed, and the diffusion nozzle and eventually the water sprinkling port are exposed from the outer cylinder, which is inferior to the conventional one. The water flow from the water supply pipe can be diffused and released.

[0018] In addition, a sealing member is provided on the outer cylinder to seal between this and the diffusion nozzle. , Water leakage between the outer cylinder and the diffusion nozzle, which is said to be movable relative to the outer cylinder. etc. can be reliably prevented.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view showing a preferred embodiment of a sprinkler head of the present invention.

FIG. 2 is a schematic cross-sectional view showing the operating state of the sprinkler head of the present invention.

FIG. 3 is a side view of a conventional sprinkler head.

[Explanation of symbols]

2 Water supply pipe 4 Outer cylinder 8 Diffusion nozzle 10 Water spout 12 Plug body

Claims (2)

[Scope of utility model registration request] 1. A hollow outer cylinder provided at an end opening of a water supply pipe, and a diffusion nozzle having a water sprinkling port, which is provided in communication with the water supply pipe and freely protrudes from the outer cylinder. ,
A sprinkler head comprising: an engaging member that removably locks the diffusion nozzle in the outer cylinder and releases the diffusion nozzle with water discharge pressure from the water supply pipe. 2. The sprinkler head according to claim 1, wherein the outer cylinder is provided with a sealing member for sealing between the outer cylinder and the diffusion nozzle.