JP3122103U - Gun type spray nozzle - Google Patents

Abstract

To prevent a malfunction from occurring.
A flow path provided in a body 1, a ball valve 3 for opening and closing the flow path, a leg member 12 having a lower end portion 12a connected to the ball valve 3, and an upper end portion of the leg member are continuous. A gun-type spray nozzle having an opening / closing handle 10 having a gripping member 14; a stopper rod 18 is provided on the leg member 12, and a lock release lever 20 is provided on the gripping member 14 to slide the stopper rod 18; In addition, a guide stopper 30 is provided for locking the lower end portion 18a of the stopper rod 18 when the opening / closing band 10 is in the valve closing position.
[Selection] Figure 3

Description

  The present invention relates to a spray nozzle used for fire extinguishing and the like, and more particularly to a gun type spray nozzle having an opening / closing handle.

  A conventional gun type spray nozzle includes a flow path provided in a body, a ball valve that opens and closes the flow path, and an inverted U-shaped (gate-shaped) open / close handle that opens and closes the ball valve. Yes. In this nozzle, when the opening / closing handle is turned in a predetermined direction, the ball valve rotates and opens, so that water discharge is started. When the opening / closing handle is rotated in the opposite direction, the valve is closed and the water discharge is stopped.

  In the conventional example, when a fire is extinguished, a fire extinguisher hangs the nozzle band over his shoulder and enters the house to be extinguished while grasping the grip. May collide with and rotate in the valve opening direction, resulting in a valve open state. When such a malfunction occurs, the water discharge is inadvertently started, which is dangerous.

  The purpose of this device is to prevent malfunctions.

  The present invention relates to a ball valve provided in a flow passage of a body, an opening / closing handle provided on the body for opening and closing the ball valve, the leg member having a lower end connected to the ball valve, and the leg member A gun-type spray nozzle having an opening / closing handle having a grip member continuous with an upper end of the stopper; a stopper rod provided on the leg member, and a lock provided on the grip member for sliding the stopper rod A release lever and a stopper provided on the body and locking the lower end of the stopper rod when the valve is closed are provided.

  The opening / closing handle of the present invention is formed in an inverted U shape. The stopper rod of the present invention is provided with a locking portion for locking to the stopper, and the upper end of the stopper rod is rotatably fixed to one end of the unlocking lever. The end portion is rotatably fixed to the grip member, and the central portion of the lock release lever is connected to the grip member via a spring. A stopper pin for restricting movement of the unlocking lever is provided on the leg member of the present invention. A lower end portion of the leg member of the present invention is formed in an arc shape, and the stopper is an arc-shaped guide stopper formed along the lower end portion of the arc shape.

  Since this device is configured as described above, when the open / close handle is closed, the lower end portion of the stopper rod is locked by the stopper, and the lock release lever is displaced when the grip member is gripped. The stopper rod slides and the lock is released. Therefore, unlike the conventional example, since the opening / closing handle does not rotate carelessly in the valve opening direction when the valve is closed, the occurrence of malfunction is completely prevented. Moreover, since the locked state is released simply by grasping the grip member, the operation is easy.

  The present inventor considered that a stopper may be provided on the opening / closing handle in order to achieve the above object, and examined what kind of stopper mechanism is suitable. As a result, a stopper rod that slides along the leg member of the opening / closing handle is provided, and the grip member of the opening / closing handle is provided with a lock release lever that slides the stopper rod when gripped by hand, and the leg member It has been found that a stopper for locking the lower end portion of the stopper rod when the open / close band is in the valve closing position may be provided below. This idea has been made based on the above findings.

An embodiment of this invention will be described with reference to FIGS.
The body (barrel) 1 is formed in a cylindrical shape, and a flow path (not shown) is provided therein. The body 1 is provided with a ball valve 3 for opening and closing the flow path, and an opening / closing handle 10 is connected to the left and right sides of the ball valve 3 via a spindle 7.

  The opening / closing handle 10 is formed in an inverted U shape (gate shape), and includes a pair of leg members 12 and 12 and a gripping member 14 that is continuous with the upper ends of the both leg portions 12. A lower end 12 a of the leg member 12 is formed in an arc shape, and the lower end 12 a is fixed to the spindle 7 with a pin 16.

  A stopper rod 18 that slides along the leg member 12 is provided inside the leg member 12. The lower end portion 18a of the stopper rod 18 is supported so as to protrude from the lower end portion 12a of the leg member 12, and the upper end portion 18b is fixed to one end of the lock release lever 20 via a pin 22. Has been.

  The other end of the unlocking lever 20 is rotatably fixed to the gripping member 14 via a pin 24. One end of the lever 20 is locked to a stopper screw 26 protruding from the inside of the leg member 12. The screw 26 regulates the movement range of the lever 20. A central portion of the lever 20 is connected to the gripping member 14 via a spring 28, and the spring 28 biases the lever 20 toward the lower end portion 12 a of the leg member 12.

  The lower end portion 12a of the leg member 12 is formed in an arc shape, and a stopper 30 is provided below the lower end portion 12a. The stopper 30 is a guide stopper formed in an arc shape along the arc-shaped lower end portion 12a, and is designed so that the lower end portion 18a of the stopper rod 18 can be locked when the opening / closing handle 10 is in the valve closing position. Has been.

  In the figure, 32 is a spray angle adjusting head, 34 is a flow rate switching dial, 36 is a grip, 38 is a shoulder belt ring that supports the belt 40, 42 is a receiving bracket, and 44 is a stopper that regulates the operating angle of the handle. .

Next, the operation of this embodiment will be described.
When the valve opens:
At the start of the fire fighting operation, when the gripping member 14 of the open / close lever 10A and the unlocking lever 20 are gripped by hand, the lever 20 moves toward the gripping member 14 against the spring force of the spring 28, and the pin 24 Rotate around the axis. Therefore, as shown in FIG. 3, since the stopper rod 18 is lifted, the lower end portion 18a of the rod 18 rises and the engagement with the guide stopper 30 is released.

  When this handle 10A is rotated in the direction of arrow A10 as shown in FIG. 2, the ball valve 3 rotates and the through hole 3a opens in the direction of the flow path, and water discharge is started. Further, when it is turned in the same direction, it is fully opened and the stopper 44 for restricting the operating angle hits the contact portion of the body 1 and cannot be rotated any further. When the lock release lever 20 is released, the lever 20 is in a state of 10B, and the lower end portion 18a of the rod 18 abuts on the upper surface of the guide stopper 30.

When valve is closed:
After the extinguishing operation, when the gripping member 14 of the open / close handle 10B and the unlocking lever 20 are grasped by hand, the stopper rod 18 is lifted in the same manner as described above, and the lower end portion 18a of the rod is the guide stopper 30. Move away from the top surface.

  When the handle 10B is rotated in the direction opposite to the arrow A10, the ball valve 3 begins to rotate and opens, and when the handle 10B is further rotated in the same direction, the stopper 44 hits the contact portion of the body 1 and is fully closed. Therefore, water discharge stops. When the hand is released from the unlocking lever 20, the lever 20 enters a state of 10A, and the lower end portion 18a of the rod 18 is engaged with the rear end surface of the guide stopper 30 as shown in FIGS. Therefore, even if a force in the direction of the arrow A10 is applied to the handle 10A, the handle 10A does not rotate, so that the valve does not open, and therefore water discharge is not inadvertently started.

The embodiment of the present invention is not limited to the above, and may be as follows, for example.
(1) Instead of making the opening / closing handle in an inverted U shape (gate shape), an inverted L shape (one vertical leg member and one lateral grip member) or an inverted Y shape ( You may form in a pair of leg member of a vertical direction, and the vertical grip member protrudingly provided by the upper end connection part of the said leg member. (2) The shape or the like of the stopper is not particularly limited, and may be a protrusion having a shape capable of locking the lower end portion of the stopper rod at the valve closing position, for example, a cylindrical body or a prismatic body. Moreover, you may utilize a recessed part instead of protrusion.
(3) Instead of providing the grip member in the orthogonal direction (lateral direction) with the leg member, it may be provided in the vertical direction so that the stopper rod slides when the grip member is gripped.

It is a front view which shows the Example of this invention. It is a principal part enlarged view of FIG. It is a longitudinal cross-sectional view of FIG. It is a longitudinal cross-sectional view of a state different from FIG.

Explanation of symbols

1 Body 3 Ball Valve 10 Opening / Closing Handle 12 Leg Member 14 Grip Member 18 Stopper Rod 20 Lock Release Lever 30 Stopper

Claims (5)

A ball valve provided in a flow path of the body; an opening / closing handle provided on the body for opening and closing the ball valve; and a leg member having a lower end connected to the ball valve, and an upper end of the leg member A gun-type spray nozzle comprising an open / close handle having a continuous gripping member;
A stopper rod provided on the leg member;
A lock release lever provided on the gripping member for sliding the stopper rod;
A stopper provided on the body, the lower end of the stopper rod being locked when the valve is closed;
A gun-type spray nozzle characterized by comprising:   2. The gun type spray nozzle according to claim 1, wherein the opening / closing handle is formed in an inverted U shape.   At the lower end of the stopper rod, there is provided an engaging portion for engaging with the stopper, the upper end of which is rotatably fixed to one end of the unlocking lever, and the other end of the unlocking lever is The gun type spray nozzle according to claim 1, wherein the gun type spray nozzle is fixed to the grip member so as to be rotatable, and a central portion of the lock release lever is connected to the grip member via a spring.   The gun type spray nozzle according to claim 3, wherein a stopper pin for restricting movement of the unlocking lever is provided on an upper portion of the leg member.   The gun-type spray according to claim 1, wherein a lower end portion of the leg member is formed in an arc shape, and the stopper is an arc-shaped guide stopper formed along the lower end portion of the arc shape. nozzle.

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