JPS639323Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a swing lever safety device for a fire extinguisher, which is an improved safety device for fire extinguishers.

[Prior Art] As shown in FIG. 6, in a conventional fire extinguisher, a fixed lever 3 is fixed to a cap 2 held in an opening of a container body 1, and a swing lever 4 is pivotally mounted. A clamping part 7 at the tip of a safety plug 6 having a handle part 5 at the base end is clamped between the fixed lever 3 and the swinging lever 4, thereby preventing the swinging lever 4 from swinging. The fire extinguisher is prevented from operating.

[Problem that the invention attempts to solve]

However, in conventional fire extinguishers, the clamping part 7 of the safety hydrant 6 is clamped between the fixed lever 3 and the swinging lever 4, so in the event of a fire, it is necessary to hold both levers 3 and 4 while holding the safety hydrant. If you try to pull out the safety plug 6, the safety plug 6 will not come out, and if you try to pull it out forcibly, the handle 5 will be damaged, and there is a risk that you will not be able to carry out the important initial extinguishing in the event of a fire. Furthermore, since the safety plug 6 is disposed between both levers 3 and 4, it is difficult to check the safety plug 6 when gripping both levers 3 and 4, and furthermore, the direction in which the safety plug 6 is removed is difficult. There is a problem in that it is difficult to pull out because it is toward the hand as shown by arrow A.

[Means for solving problems]

This idea was developed in view of the above-mentioned circumstances, and a fixed lever is formed on the cap fitted into the container body, and a cutter for breaking the seal of the gas cylinder fitted into the container body is installed in the cap. A fire extinguisher equipped with a swinging lever that is slidably installed in the vertical direction and that slides the cutter, an abutting member that locks the cutter, and a safety hydrant that prevents the swinging lever from swinging. In the cutter, the upper end of the cutter is brought into contact with the swinging lever, one end of which is pivotally connected to the cap, and a recess is carved in the axial direction of the side edge of the cutter, and a through hole communicates with the recess. is formed horizontally in the cap, and the abutment member to be fitted into the recess and elastic means for resiliently biasing the abutment member toward the cutter are fitted into the through hole. A communicating hole is drilled from above the cap, parallel to the cutter, and vertically through the through hole, and the safety plug having a handle formed at one end is inserted into the communicating hole. The present invention proposes a swing lever safety device for a fire extinguisher, which is capable of preventing the swing lever from swinging by separating the contact member and the elastic means.

[Effect]

This invention will be explained in detail below based on the accompanying drawings.

Figure 1 is a partially cutaway side view of the rocking lever safety device for a fire extinguisher according to this invention.
0 indicates a container body, and a cap 11 is attached to the upper opening of the container body 10. A fixed lever 12 is attached to the cap 11, and a swing lever 13 is pivotally attached to the cap 11 so as to be swingable in the vertical direction about a support shaft 14. In addition, the cap 11 has a container body 1.
A cutter 15 capable of breaking the seal of a pressurized gas cylinder (not shown) installed inside the cutter 1 is slidably inserted in the vertical direction, and the upper end of the cutter 15 is brought into contact with the swing lever 13 .

Further, inside the cap 11, there is a through hole 16 that forms a space toward the side of the cutter 15.
The cap 11 is perforated almost horizontally from the side thereof toward the side of the cap 11. Inside the through hole 16, a spherical abutting member 17 is provided in a recess 1 formed on the side of the cutter 15.
It is disposed in abutting engagement with 5a. Then, the abutment member 17 is connected to the cutter 15 by a spring 19, which is an elastic means, via a spherical receiving member 18.
is pushed towards the side. A plug 20 is screwed to the end of the aforementioned through hole 16 and holds a spring 19 therein.

Further, a safety plug 21 having a ring-shaped handle portion 21a at its base end is passed through the swing lever 13 in the vertical direction, and the tip of the safety plug 21 is attached to the cap 1.
The safety plug 21 is removably inserted into a communication hole 22 that communicates with the horizontal hole 16 from above, and the tip of the safety plug 21 is locked to the abutting member 17 to prevent the abutting member 17 from moving.

The cutter 15 and the contact member 17 are shown in FIG.
It is also possible to do as shown in FIGS. 3, 4, and 5. That is, the one shown in FIG. 2 does not have the receiving member 18 shown in FIG. It is engaged.

What is shown in FIG. 3 is the recess 15a of the cutter 15.
has a V-shaped cross section, and the abutting side of the abutting member 17 that abuts and engages with the abutting member 17 also has a spire shape.

4 and 5, the recess 15a of the cutter 15 is shaped like a circumferential groove, and the contact member 1 is abutted and engaged with the recess 15a of the cutter 15.
7 is made into a spherical shape.

[Effect of the invention] Since the upper end of the cutter is in contact with a swinging lever whose one end is pivotally connected to the cap, the cutter cannot slide vertically unless the swinging lever is firmly rocked. Even if you accidentally touch the swing lever while moving or inspecting the fire extinguisher, the gas cylinder will not be sealed by the cutter, and there is no risk of the extinguishing agent suddenly spewing out.

A recess is carved in the axial direction of the side edge of the cutter, a through hole communicating with the recess is bored horizontally within the cap, and an abutment member is fitted into the recess in the through hole; This abutting member is fitted with an elastic means that elastically biases it toward the cutter and is closed with a plug, thereby preventing the cutter from sliding even if the safety plug is removed from the communication hole. Even if a third party such as a child comes into contact with the swinging lever of the installed fire extinguisher, the gas cylinder is prevented from being broken due to the sliding cutter, and it also prevents fire extinguishing agent from extinguishing operations and rainwater from being installed outdoors. Since the plug prevents the fire extinguisher from entering the hole, it prevents the contact member and elastic means fitted into the hole from sticking, which can lead to malfunction of the swing lever when the fire extinguisher is installed for a long period of time. There's nothing to do.

A communication hole is drilled from above the cap parallel to the cutter and vertically through the through hole, and a safety plug with a handle formed at one end is inserted into this communication hole.
By separating the abutment member and the elastic means, the safety plug is prevented from coming off the communication hole due to vibration or falling during transportation of the fire extinguisher, so even if the swing lever is pressed, Sliding of the cutter is prevented and the fire extinguishing agent is not released spontaneously from the container body.

The safety device of the rocking lever of this invention according to the above and by includes a safety mechanism that separates the abutting member and the elastic means by inserting a safety plug into a communication hole penetrated through the cap, and a safety mechanism carved on the side edge of the cutter. A double safety device is provided with a safety mechanism in which the abutting member is elastically biased and fitted into the recess provided in the container body, thereby preventing the spontaneous release of extinguishing agent from the container body. This prevents sudden, unintentional eruption.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway side view showing the rocking lever safety device for a fire extinguisher according to this invention, and Figs. 2 to 5 show other embodiments of the cutter and abutting member shown in Fig. 2. In a side view, FIG. 6 is a schematic diagram showing the upper part of a conventional fire extinguisher. In the drawings, 11...cap, 12...
... Fixed lever, 13 ... Swinging lever, 15 ... Cut, 15a ... Recess, 16 ... Through hole, 17 ...
Contact member, 19... elastic means, 21... safety plug,
22...Communication hole.

Claims (1)

[Scope of utility model registration request] A fixed lever is formed on a cap that is fitted into the container body, and a cutter for breaking the seal of the gas cylinder mounted in the container body is installed in the cap so as to be slidable in the vertical direction. In the fire extinguisher, the fire extinguisher includes a swinging lever that locks the cutter, a contact member that locks the cutter, and a safety plug that prevents swinging operation of the swinging lever, the swinging lever having one end pivotally connected to the cap. The upper end of the cutter is brought into contact with the cutter, a recess is cut in the direction of the axis of the side edge of the cutter, a through hole communicating with the recess is bored in the horizontal direction within the cap, and the cutter is provided with a recess in the direction of the axis of the side edge of the cutter. The abutment member fitted into the recess and elastic means for elastically biasing the abutment member toward the cutter are fitted and closed with a plug, and the cap is parallel to the cutter from above. A communication hole is formed vertically through the communication hole, and the safety plug having a handle portion formed at one end is inserted into the communication hole to separate the abutment member and the elastic means. A fire extinguisher swing lever safety device capable of preventing swinging of the swing lever.