JPH0243256Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an emergency shower that is installed in a department where dangerous chemicals are handled in a chemical factory or the like, and is capable of spraying the necessary amount of water in an emergency.

[Prior art]

2. Description of the Related Art Conventionally, there is a shower shown in FIG. 1 as an emergency shower.

A partition wall 101 is provided in the main body 100 that connects the supply pipe A and the shower head B to divide the flow path into two, and a valve seat 1 is formed on the partition wall 101 on the primary side.
Valve body 10 equipped with a packing 103 that comes into contact with and separates from 02
4 is pushed by an operating rod 105 to open the valve. The valve body 104 is biased in the valve closing direction by the first spring 106, and the actuating rod 105 is biased toward the valve body 104.
The second spring 107 urges the second spring 107 to move away from the second spring 107 .

Reference numeral 108 denotes an operating lever with a chain 109 attached to its tip, which has a disk portion 108a at its base end and abuts against the disk portion 105a of the operating rod 105. This lever 108 has its disk portion 1 inside the mounting cover 109.
08a is loaded and can be rotated vertically around the disc part 108a, and the lever 1
08 is tilted downward, the actuating rod 105 moves to the left and pushes the valve body 104 to open the valve. As a result, the supply pipe A and the shower head B communicate with each other to spray water, but in order to continue spraying water, the chain 109 must be kept pulled downward during this time. The problem is that it does not work.

[Purpose of invention]

The purpose of this invention is to provide emergency showers with
The purpose is to improve operability by providing a function to lock the valve body in an open state when continuous watering is required.

[Structure of the idea]

The structure of the present invention is that the valve body that opens and closes the internal flow path of the main body is biased in the valve closing direction and mounted so that the valve can be automatically closed, and the actuating rod that pushes the valve body in the valve opening direction is arranged so that it can move back and forth. In an emergency shower device in which a lever for operating the actuating rod is provided outside the main body, the lever and the actuating rod constitute a locking mechanism so that the valve body can be held in the open position. This is what I did.

〔Example〕

The present invention will be explained below based on embodiments shown in the drawings.

FIG. 2 is a front view showing an installation example of the emergency shower device according to the present invention, in which the main body 1 of the device is connected to a water supply pipe 50 and a water supply pipe 51 that are vertically installed on the floor. The shower head B is connected to the supply pipe A, and the shower head B is connected to the main body 1 through a communication pipe 52 extending upward. Further, a regular opening/closing device 5 having an opening/closing handle 53 is provided midway through the supply pipe A.
4 are connected in communication, and water can be discharged from the regular shower head 55 by operating the opening/closing handle 53.

FIG. 3 is a sectional view of essential parts of the emergency shower, in which the main body 1, which has the same structure as the conventional example, connects the supply pipe A and the communication pipe 52 to the shower head B to the internal flow path F.
It is connected through. Inside the main body 1 is the supply pipe A
A primary side chamber 3 and a secondary side chamber 2 are provided on the side and the connecting pipe 52 side, respectively.
is divided into parts by a partition wall 4, and an opening 5 is provided in the partition wall 4. Cylindrical portions 6 and 7 are formed coaxially with the opening 5 in the primary and secondary side chambers 2 and 3, and a guide 9 to which an operating rod 8 is slidably attached to one of the cylindrical portions 6
A support fitting 11 to which a lever 10 for operation is pivotally attached is fixed by a cap nut 12. Further, a lid 7a is screwed onto the other cylindrical portion 7, and a pressure chamber P is defined between the lid 7a and the valve body 13, a portion of which is slidably attached within the cylindrical portion 7 via a gasket 13a. are doing.

The valve body 13 has a first body 14 having an opening 14a in the middle, and a hole 16 connected to the first body 14 in the center.
The second main body 15 has a second main body 15 extending therethrough, and an operating valve body 18 that is biased toward the opening 14 by a spring 17 within the pressure chamber P. A small hole 19 is formed in the first body 14 to communicate the inside of the pressure chamber P and the secondary side chamber 3, and a gasket 21 that comes into contact with and separates from the valve seat 20 of the partition wall 4 is sandwiched between the second body 15 and the second body 15. There is. Further, the operating valve body 18 is formed with a valve shaft 22 that extends through the opening 14a and reaches the primary side chamber 2 from the hole 16 of the second body 15 when the valve is closed.

The guide 9 has a packing 23 and the like, and its tip is connected to the valve shaft 2.
2 and the operating rod 8 that comes into contact with the peripheral portion of the hole 16 of the second main body 15 is slidably built in, and the disk portion 24 at the base end
A spring 25 is interposed on the side.

The lever 10 is pivotably mounted by a pin 26, and has a first contact surface 27 for closing the valve and a second contact surface 28 for locking the valve open on the opposite side to the disc portion 24. The corners form approximately 90 degrees. The distance from the pivot point of the pin 26 to the second contact surface 28 is
larger than that to the contact surface 27, and both surfaces 27,
The continuous portion 28 is formed to form an arcuate surface 29. Due to the shape of the lever 10, the disc portion 24 of the actuating rod 8 and the second contact surface 28 constitute a locking mechanism L when the valve is opened.

In the above configuration, in order to open the valve from the illustrated closed state, the lever 10 is rotated clockwise and pushed down, and the first contact surface 27 that contacts the surface of the disk portion 24 of the actuating rod 8 is tilted. while pushing the actuating rod 8 to the left. By this movement of the actuating rod 8, the actuating valve body 18 is similarly pushed leftward and separated from the seal 18a. Next, the tip of the actuating rod 8 is the second
The valve is opened by contacting and pushing the vicinity of the hole 16 of the main body 15, moving the valve body 13 to the left together with the first main body 14, and separating the seal 21 from the valve seat 20.
Water flows down from the supply pipe A to the communication pipe 52 and can be sprayed from the shower head B.

In operating the lever 10, when the downward force is released, the actuating rod 8 moves to the right due to the biasing force of the spring 25, which causes the lever 10 to move to the right.
rotates counterclockwise and returns to the valve closed position. Therefore, if you want to sprinkle the required amount of water when necessary, rotate the lever 10 to the required angle and release the disk portion 2.
4 in line contact with the arcuate surface 29 and hold that position, watering can be started instantaneously, and when the pressure is released, the lever 1 will move around the pin 26.
A moment acts to rotate the valve counterclockwise and the valve automatically closes. In this valve closing, the actuating rod 8 quickly returns to the valve closing position and the valve body 1
3, the operating valve body 18 is seated on the gasket 18a, water flows into the pressure chamber P little by little from the small hole 19, and the restoring force of the spring 17 pushes the valve body 13 Since the valve gradually moves in the valve closing direction, the valve closes gradually after a certain period of time.

Further, when watering is to be continued for a long period of time, the lever 10 is rotated approximately 90 degrees as shown by the dashed line in the figure, so that the second contact surface 28 is placed in contact with the disk portion 24. As mentioned above, since the distance between the second abutting surface 28 and the pivot point is large, the actuating rod 8 is moved to the valve opening position, and the disc part 24 and the second abutting surface 28 are connected to the pivot point. Since surface contact extends to both the upper and lower levels, the moment around the pin 26 does not act, and the pin 26 stops at this position. Therefore, the valve body 13 is in an open state and can continue sprinkling water, and after use, the valve can be closed in the same manner as described above by returning the lever 10 to its original position.

〔effect〕

The emergency shower according to the present invention has the effect that not only short-term sprinkling of water but also continuous watering can be easily performed without having to hold the lever with one's hand by simply operating the lever.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional emergency shower, Fig. 2 is a front view showing an installation example of the emergency shower device of the present invention, Fig. 3 is a sectional view of the main body of the shower device, and Fig. 4 is a sectional view of the shower device. FIG. 3 is a sectional view taken along the line arrow - in FIG. 3; 1... Main body, 8... Operating rod, 10... Lever,
13... Valve body, A... Supply pipe (water supply source), B...
Shower head, F...flow path, L...lock mechanism.

Claims (1)

[Scope of utility model registration request] A valve body that opens and closes the flow path is attached to the main body, which has a flow path that communicates and connects the water supply side and the shower head, so that the valve can be automatically closed by biasing it in the valve closing direction, and the valve body opens the valve. In an emergency shower device that is provided with an actuation rod that is pushed in a direction and a lever that operates the actuation rod on the outside of the main body, the lever and the actuation rod hold the valve body in the open position. An emergency shower device comprising a locking mechanism.