JPS6319669Y2 - - Google Patents

Description

[Detailed description of the invention] The object of this invention is to provide a gas passageway circuit breaker which, when the location where the thermostat needs to be activated, such as near a gas burner, heats up to a predetermined temperature or higher while city gas or other gas is being used, automatically drops a blocking plug to cut off the gas passageway by the activation of the thermostat, thereby automatically cutting off the supply of gas and preventing the outbreak of a fire.

This invention has gas passages installed opposite each other in a sealed container.
A gap is provided between the gas passages, a stopper that can quickly fall is interposed in the gap, a permanent magnet is installed on the top of the container, and a support rod is fixed to the stopper. An adsorbent is fixed to the upper end of the thermostat, and a pushing rod is inserted into the container from below to push up the blocking plug, so that the tip of the operating rod of the thermostat is between the permanent magnet and the adsorbent. The gas passage breaker is constructed so that the adsorption state of the two can be separated by entering the thermostat, and the other half of the operating rod, that is, the heat receiving part, is constructed so that it can be installed at the location where the thermostat requires operation. An example of this is as follows.

1 is a container, 2 and 3 are gas passages each connected to the container 1, and the two are provided opposite each other, and the space between them is defined as a spacing portion 4. Reference numeral 5 denotes a blocking stopper which quickly falls down due to its own weight within the container 1, that is, acts like a weight. The blocking plug 5 usually has an inverted conical shape, but is not necessarily limited to this shape, and may have other shapes as well.
Any configuration that can cut off the gas supply by No. 3 may be used. The blocking plug 5 may be attached with rubber or other similar sealing material. Reference numeral 6 indicates a permanent magnet installed on the upper part of the container 1, but in the present invention, it is sufficient if it is permanent or has durability and exerts magnetic force, and it is not necessarily a type of permanent magnet. It is not a question of
Reference numeral 7 denotes a support rod, which is fixed on the upper surface of the blocking plug 5, and an iron material or the like adsorbent 8 is fixed on the upper end thereof. Reference numeral 9 denotes a pusher rod that is inserted into the container 1 and protrudes into a space 4a provided in the lower part of the container 1, and a pusher 9a is fixed on the upper surface of the protrusion. 5, which presses a pressure receiving part 5a provided horizontally at the lower end of the pressure receiving part 5a. Reference numeral 9b indicates an acupressure plate fixed to the lower end of the pusher lever 9, and 10 indicates a spiral spring wrapped around the pusher lever 9, which is compressed and interposed between the lower bottom portion of the container 1 and the acupressure plate 9b. Therefore, the push rod 9 is always pressed downward.
Reference numeral 11 denotes a thermostat, that is, its operating rod, the lower end of which is fixed to a retainer 12 fixed to the container 1, and the tip thereof facing between the permanent magnet 6 and the adsorbent 8. Since the permanent magnet 6 is housed and fixed in the holding box 13 fixed to the container 1, the tip of the operating rod 11 is attached to the holding box 1.
3, the permanent magnet 6 is provided with a gouged part 6a in order to make it easy to insert it into the permanent magnet 6 and the adsorbent 8 while prying it between them when they are bonded.
The tip is disposed within this. The bottom of the holding box 13 is open into the container 1 so that the adsorbent 8 inside the container 1 adheres to the permanent magnet 6 in the holding box 13. The adsorbent 8 enters this opening. and,
When the adsorbent 8 is adhered to the permanent magnet 6, the gas passages 2 and 3 are fully opened and communicated through the spacer 4. 14 and 14a are O-rings, and 15 is a gas burner. In addition, in FIG. 2, the gas passage 2 and the gas passage 3 are shown at different levels. In the present invention, "gas passages are provided oppositely within the container" does not necessarily mean that they are provided facing each other, but also that they are arranged side by side or in spaces 4 and 4.
This also includes the case where gas passages that are separated due to the purpose and significance of supplying gas through intervening gas passages are related to each other. Figure 2 shows this. In the above drawing, the blocking plug 5 and the inside of the container 1 are connected with a rubber covering plate 16, and the spacer 4 is
The corresponding volume may be made as small as possible.

The operation of the present invention will be explained based on the above-mentioned embodiments. As shown in the figure, when the acupressure plate 9b is pressed with fingers, the pusher rod 9 rises against the elasticity of the spiral spring 10.
The adsorbent body 8 is pressed against the permanent magnet 6, and the blocking plug body 5 rises together with the push-up rod 9, so that the gas passages 2 and 3 communicate with each other through the spacer 4. Then, when the pressure on the acupressure plate 9b is released, the pushing rod 9 is restored to its original state due to the elastic action of the spiral spring 10. A state is maintained in which gas can be supplied to the gas burner 15 through communication between the gas passages 2 and 3, and when the vicinity of the gas burner 15 is heated to a predetermined temperature or higher, the operating rod 11 is activated to supply gas to the gas burner 15. The tip enters between the permanent magnet 6 and the adsorbent 8 while separating them, and the blocking plug 5
falls rapidly due to its own weight and gets stuck in the spacer 4, cutting off communication between the gas passages 2 and 3 and stopping the supply of gas to the gas burner 15. Also,
When the adsorbing body 8 is attracted to the permanent magnet 6, when a vibration exceeding a predetermined value is applied, the vibration force separates the adsorbing body 8 and the blocking stopper 5 performs the above-mentioned falling action.

The present invention is as described above, so when a fire breaks out near a gas burner, or by placing a thermostat in a place that requires attention, when a fire breaks out from that location, the heat When the thermostat is activated, it separates the permanent magnet 6 from the blocking stopper 5 and causes it to fall under its own weight, blocking the gas passage and immediately cutting off the gas supply, causing a gas explosion and other gas supply to continue. This has the effect of preventing the spread of disasters.

[Brief explanation of drawings]

The figure shows an example of implementation of the present invention, and
FIG. 1 is a sectional view showing the gas passage breaker of the present invention, and FIG. 2 is a view showing a different example of the same. In the diagram, the main parts are related to the mutually complementary relationship of the matters stated in the scope of claims for utility model registration.

Claims (1)

[Scope of utility model registration request] As described in detail in the main text, gas passages are provided oppositely in a sealed container, a gap is provided between the gas passages, and a stopper that can be dropped rapidly is interposed in the gap, and the upper part of the container is A permanent magnet is installed in the container, a support rod is fixed to the blocking plug body, an adsorbent is fixed to the upper end of the support rod, and a pushing rod is inserted into the container from below to make it possible to push up the blocking plug body. The tip of the operating rod of the thermostat enters between the permanent magnet and the attracting body to separate the adsorption state of the two, and the other half of the operating rod, that is, the heat receiving portion, is connected to the thermostat. A gas passage breaker configured so that it can be installed in locations where operation is required.