JPS637252Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a fire extinguisher, and more particularly to a swing lever safety device for a fire extinguisher in which a safety plug is arranged so that it can be inserted and removed in the vertical direction.

As shown in FIG. 1, a conventional fire extinguisher has a cap 2 disposed at the upper opening of a container body 1 of the fire extinguisher to seal the opening, and a fixed lever 3 which is a handle part of the cap 2. A swing lever 4 is attached thereto and is pivotally mounted on the top of the cap 2. The tip of a safety plug 6 having a handle 5 at the base end is held between the fixed lever 3 and the swinging lever 4, and the safety plug 6 is horizontally moved between the swinging lever 4 and the fixed lever 3. It is set so that it can be removed.

As described above, in the conventional fire extinguisher, the tip of the safety plug 6 is held between the fixed lever 3 and the swinging lever 4, thereby preventing the swinging lever 4 from swinging. Therefore, when removing the safety plug 6 during fire extinguishing work, if you try to pull out the safety plug 6 while grasping the swinging lever 4 in a hurry, the safety plug 6 will not be able to be removed, and if you try to pull it out by force, it will become unsafe. The handle portion 5 of the spigot 6 may be damaged, and there is a risk that the initial fire extinguishment, which is important in fire extinguishing work, may not be possible.

Furthermore, in the conventional fire extinguisher, as shown in FIG.
Because of this, it is difficult to check the handle part 5 of the safety plug 6 when grasping the handle part 4a of the swing lever 4, and furthermore, when the safety plug 6 is removed, the swing lever 4 and the fixed lever 3 must be removed horizontally, which poses a problem in that it is not only difficult to operate, but also difficult to understand how to operate it.

This idea was created in view of the circumstances mentioned above, and is placed in the opening of the container body and sealed.
Further, one end of a swinging lever is pivotally mounted on a cap provided with a fixed lever, and a pressurizing cylinder installed inside the container body is unsealed by swinging operation of the swinging lever. Or, in a fire extinguisher equipped with a safety hydrant that is slidably installed through an activation shaft capable of opening a shutoff valve of a container body and that prevents the swinging lever from swinging in the vertical direction, A small hole is formed in each position opposite to the lever, and one end of the leaf spring is fixed near the small hole of the swing lever, and the other end of the leaf spring is fixed or engaged near the small hole of the fixed lever. The leaf spring is curved toward the small hole, and the safety plug is inserted into and removed from the small hole from above the swing lever, and the leaf spring is attached to the shaft of the safety plug. By making contact with the side edges, the safety plug can be easily pulled out even when the swing lever is grasped, and the safety plug can also be easily checked, and the safety plug can be inserted into the small hole. To provide a swing lever safety device for a fire extinguisher which can prevent the swing lever from swinging in the vertical direction when the swing lever is penetrated.

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

Fig. 2 is a side view showing a part of the upper part of the fire extinguisher according to this invention in cross section. Cap 11 that holds the
will be placed. A fixing lever 13, which is a handle part, is attached to the cap 11 and is curved downward, and the upper part of the cap 11 has a handle part 14 formed in a downward curve like the fixing lever 13, which has a handle part 14 at its base end. A swinging lever 15 is pivotally mounted by a support shaft 16 so as to be swingable in the vertical direction. In addition, the cap 11 is penetrated in the vertical direction and a pressurizing gas cylinder (not shown) disposed inside the container body 10 in the case of a pressurizing type is sealed or the pressurizing gas cylinder (not shown) is inserted into the container body 10 in the case of a pressure accumulating type. A cutter 17, which is an activation shaft capable of opening a shutoff valve (not shown), is arranged to be slidable in the vertical direction. Therefore, the fire extinguisher according to this invention can be used in both pressurized and accumulating types.
The upper end of the cutter 17 has an E-ring 18 attached to the folded part 15a formed near the tip of the swing lever 15.
Further, the upper end of the cutter 17 is brought into contact with an abutment portion 15b press-molded on the swing lever 15.

Small holes 22 and 26 are formed in the central portions of the swinging lever 15 and the fixed lever 13 that face each other, respectively, and the handle portion 14 is inserted through these small holes 22 and 26.
The leaf spring 19 is fixed at both ends to the swing lever 15 and the fixed lever 13 with rivets 20 and 21 at an appropriate distance to the side, and is installed so as to curve toward the small holes 22 and 26. As shown in FIG. 3, internal stress is generated in the leaf spring 19 so that it deforms into a horizontal U-shape. Next, a rod-shaped safety plug 24 with a ring-shaped handle portion 23 at the top is inserted into the small holes 22 and 26 formed in the swing lever 15 and the fixed lever 13.
is penetrated from above the swinging lever 15 so that it can be inserted and removed in the vertical direction, and the shaft portion 25 of the safety plug 24 is inserted into the leaf spring 19.
The swing lever 15 is brought into contact with the side of the
The horizontal U-shaped deformation of the leaf spring 19 due to the swinging operation is prevented, and the small holes 22, 2 of the safety plug 24 are
This prevents extraction from 6. A seal 27 is placed between the handle 23 of the safety stopper 24 and the swing lever 15.
will be affixed to the fire extinguisher, and the non-operating status of the fire extinguisher will be displayed.

As shown in FIG. 4, the leaf spring 19 has only one end fixed to the swing lever 15 by a rivet 20, and the other end is fixed to the protrusion 28 formed on the fixed lever 13 and the tip of the safety plug 24. It is also possible to be locked to the fixed lever 13 by being held between the parts. Since the other configurations are the same as those shown in FIG. 2, the same members are given the same reference numerals and their explanations will be omitted.

Furthermore, in the safety device for the swinging lever 15 of the fire extinguisher according to this invention shown in FIGS. 2 and 4, the leaf spring 19 is disposed on the handle portion 14 side of the swinging lever 15 with respect to the safety plug 24. However, it is also possible to arrange it on the support shaft 16 side of the safety plug 24.

The swing lever safety device for a fire extinguisher according to this invention is as described above, so in the structure shown in FIG. 2, as shown in FIG. By pulling it upward, the leaf spring 19 is deformed into a U-shape by its internal stress and the swinging operation of the swinging lever 15, and the swinging operation of the swinging lever 15 becomes possible. As a result of the swinging operation, the cutter 17 is slid to break the seal of the pressurizing gas cylinder installed inside the container body or to open the closing valve, and the extinguishing agent in the container body 10 is spouted out.

Also, in the structure shown in FIG. 4, by pulling out the safety plug 24 in the same manner as described above, the locking state of the other end of the leaf spring 19 with the fixed lever 13 is released.
As shown by the two-dot chain line in the same figure, the leaf spring 19 is brought into a straight state due to the internal stress, and the swinging operation of the swinging lever 15 becomes possible. Similarly, the extinguishing agent inside the container body 10 can be injected.

Furthermore, when pulling out the safety plug 24 mentioned above, since the coefficient of friction between the side part of the leaf spring 19 and the shaft part 25 of the safety plug 24 is very small, even when the swing lever 15 is grasped. , the safety plug 24 can be easily removed. When the fire extinguisher is not in use, the internal stress of the leaf spring 19 presses the safety plug 24 and prevents the safety plug 24 from being pulled out naturally, preventing the fire extinguisher from being activated inadvertently. is definitely prevented.

In addition, the handle portion 23 of the safety plug 24 is
Since the safety stopper 24 is disposed above the stopcock 5 and is configured to be pulled out upward, the safety stopper 24 can be easily checked even by a person who is not familiar with the operation or in the dark, and the operation method is also easy. Therefore, it is possible to ensure initial extinguishment of fire.

In addition, the rocking lever safety device for a fire extinguisher according to this invention has a simple structure and is easy to assemble, so it has the effect of making it possible to manufacture a cheap and durable fire extinguisher. Its utility value is remarkable.

[Brief explanation of drawings]

Figure 1 is a side view showing the upper part of a conventional fire extinguisher, Figure 2 is a partially cutaway side view of the upper part of a fire extinguisher equipped with a swing lever safety device according to this invention, and Figure 3 is a side view showing the upper part of a conventional fire extinguisher.
The figure is a side view showing the operating state of the device shown in FIG.
FIG. 4 is a partially cutaway side view showing a different embodiment of the device according to this invention from that shown in FIG. 2. In the drawings, 10...container body, 11...
... Cap, 13 ... Fixed lever, 15 ... Swinging lever, 17 ... Starting shaft (cutter), 19 ... Leaf spring, 24 ... Safety plug.

Claims (1)

[Scope of utility model registration request] One end of a swinging lever is pivotally attached to the top of a cap that is disposed and sealed at the opening of the container body and is provided with a fixed lever. A safety device is slidably installed through a starting shaft that can break the seal of a pressurizing cylinder installed in the main body or open a closing valve of the container main body, and prevents the swinging lever from swinging in the vertical direction. In a fire extinguisher equipped with a spigot, small holes are formed in opposing positions of the fixed lever and the swinging lever, and the other end of the leaf spring is fixed to one end near the small hole of the swinging lever. The plate spring is fixed or engaged near the small hole of the fixed lever so as to curve the plate spring toward the small hole, and the safety plug is inserted into and removed from the small hole from above the swinging lever. A rocking lever safety device for a fire extinguisher, wherein a side edge of the leaf spring is brought into contact with a shaft portion of the safety plug to prevent rocking of the rocking lever.