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protective cover

A technology of protective cover and sprinkler head, which is applied in the direction of injection device and fire rescue, etc., can solve the problems of the protection cover falling off, adhering to the inner circumference of the cylinder member, unable to protect the external impact of the sprinkler head, etc., so as to reduce the burden and prevent it from falling off. Effect

Active Publication Date: 2017-12-15
SENJU SPRINKLER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, after the protective cover 104 is pulled out, the cover plate unit 105 to be engaged with the inside of the tube member 102 is also difficult to install due to the putty 103 adhering to the inside of the tube member 102
[0009] In order to solve the above-mentioned problems, the following mode is considered: the protective cover is formed into a bottomed cylindrical shape, and the outer peripheral surface of the protective cover is aligned with the inner peripheral surface of the cylindrical member in such a way that the outer peripheral surface of the protective cover is along the inner peripheral surface of the cylindrical member. surface fitting, but this will cause a new problem: the fastening tool cannot be locked on the engaging part of the fastening tool formed inside the cylindrical member
[0010] In addition, when the outer peripheral surface of the protective cover is fitted to the inner peripheral surface of the cylindrical member so that the outer peripheral surface of the protective cover is along the inner peripheral surface of the cylindrical member, if the fitting of the protective cover and the cylindrical member becomes loose, Then the protective cover comes off from the cylinder member when it is vibrated or lightly touched by an object, the paint may adhere to the inner circumference of the cylinder member, or the sprinkler head cannot be protected from external impact
Conversely, if the fit is too tight, the operator's burden will be increased when the protective cover is removed, or the operation may take time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0062] The first embodiment ( Figure 1 to Figure 9 )

[0063] The shower head SH of the first embodiment has substantially the same structure as the shower head described in WO2011 / 125169. Here, only the parts related to the present invention will be described, and descriptions of other parts will be omitted.

[0064] figure 1 The shown shower head SH has a shower head main body 1 , a tube member 2 , a cover unit 3 , and a protective cover 4 .

[0065] The shower head main body 1 is formed in a cylindrical shape, and a nozzle 11 that discharges water supplied from a water supply pipe P is provided inside the shower head main body 1 . An external thread 12 is formed on one end of the nozzle 11, and the external thread 12 is connected to the water supply pipe P. The end surface of the other end of the nozzle 11 serves as a valve seat 14 against which a valve element 13 closes the nozzle 11. .

[0066] The spool 13 is formed in a disk shape, and one side of the spool 13 ...

no. 2 approach

[0121] The second embodiment ( Figure 14 , Figure 15A , 15B )

[0122] In the protective cover 90 of the second embodiment, an openable and closable cover portion 94 is provided at the entrance of the fastening tool insertion portion of the protective cover 90 to prevent paint from entering the protective cover. In addition, in 2nd Embodiment, the same code|symbol is attached|subjected to the same part as the structure of 1st Embodiment, and description is abbreviate|omitted.

[0123] The structure of the shower head SH2 of 2nd Embodiment is the same as 1st Embodiment except the protective cover 90. As shown in FIG. The protective cover 90 of the second embodiment is formed in a bottomed cylindrical shape, and the outer peripheral portion 91 fits inside the cylindrical member 2 .

[0124] The inside of the protective cover 90 becomes the shower head accommodating part 92 for accommodating the shower head main body 1 and the deflector 6, and a plurality of "fastening ...

no. 3 approach

[0138] The third embodiment ( Figure 18A , 18B )

[0139] The protective cover 110 of the third embodiment differs from the protective cover 4 of the first embodiment in that the tongue-shaped portion 111 is formed slightly smaller. That is, in the state where the tongue portion 111 of the present embodiment protrudes from the opening 2C of the tube member 2, as in Figure 18A As shown, a gap 112 is formed between the tongue 111 and the edge of the opening 2C.

[0140] Since such a gap 112 is provided, in a state where the tongue-shaped portion 111 is inserted into the opening 2C, the protective cover 4 can be rotated in the circumferential direction along the inner periphery of the cylindrical member 2 so as to face downward, while changing the direction of rotation alternately. One side moves down little by little. Tongue portion 111 is formed in a substantially triangular shape. Therefore, by moving protective cover 110 downward, the gap between the edge of tongue p...

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PUM

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Abstract

The present invention provides a protective cover and a spray head. When the protective cover is installed on the concealed sprinkler head, the concealed sprinkler head and the fastening tool are engaged to prevent paint from adhering to the inner periphery of the cylinder member, thereby reducing the burden on the operator. The protective cover (4) is installed on the sprinkler to protect the sprinkler head, the sprinkler has a sprinkler head main body (1) and a cylindrical member (2) arranged on the outer side of the sprinkler head main body, and the protection cover is a bottomed bottom surface and a cylinder The cylindrical shape has: a tongue portion (45) protruding from an opening (2c) provided in the upper part of the cylindrical member; an outer peripheral portion (42) fitted with the end of the cylindrical member; The main body of the sprinkler head is installed; the insertion part of the tightening tool is inserted into the tightening tool (R) for attaching the sprinkler to the water supply pipe (P); the cylinder is a double cylinder with an inner cylinder (41) and an outer cylinder (42). In the structure, the outer cylinder forms an outer peripheral portion, the sprinkler head accommodating portion is formed on the inner side of the inner cylinder, and a connecting portion connecting the inner cylinder and the outer cylinder is provided.

Description

technical field [0001] The present invention relates to a protective cover for protecting a sprinkler head for fire extinguishing from external impact, and a sprinkler head equipped with the protective cover. Background technique [0002] The sprinkler head is installed on the ceiling or wall of the building. One end of the sprinkler head has a nozzle that can be connected to a pipe connected to a water supply source, and the other end is provided with a heat-sensitive operating part. Normally, the thermosensitive action part supports the spool that closes the nozzle. [0003] As an example of the sprinkler head described above, there is a concealed sprinkler head in which the sprinkler head is covered by a cover plate to hide the sprinkler head, and the sprinkler head is embedded in a ceiling surface or a wall surface. A concealed head is used as a sprinkler head excellent in designability, and it is described in patent document 1, for example. [0004] In the concealed s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62C37/11A62C37/08
CPCA62C37/08A62C37/12B05B15/16A62C35/68A62C35/58A62C35/00
Inventor 小岩康明
Owner SENJU SPRINKLER