JP2021529298A - Gas stove safety device and gas stove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety device for a gas stove which effectively prevents empty burning. SOLUTION: A safety device for a gas stove has an outer sleeve main body (1) to which a support component main body (10), a circumferential protrusion (11), and an outer sleeve (2) are connected. A reduced diameter portion (21) is provided, and a temperature sensor assembly (3) is installed inside the outer sleeve body (20) so that the temperature at the bottom of the pot can be measured. A guide structure is provided between the support component body (10) and the outer sleeve (2), which can reciprocate with respect to the support component (1) along the axial direction of the support component (1) and is elastic. The component (8) is supported between the circumferential protrusion (11) and the upper end of the outer sleeve body (20). The safety device of the gas stove is simple in configuration, easy to process, can realize the function of preventing the gas stove from burning, and improves the safety of the gas stove. [Selection diagram] Fig. 1

Description

Cross-reference of related applications This application has priority based on the Chinese application with the application number CN201910260625.4 and the name "Gas Straw Safety Device" submitted to the China Bureau of Interest on April 2, 2019. Alleged and all its contents are incorporated herein by reference.
The present disclosure relates to the technical field of a gas stove, and more particularly to a safety device for a gas stove and a gas stove.

A gas stove is a kitchen utensil that burns and heats gaseous fuel such as liquefied petroleum gas, coal gas, and natural gas, and is often used in daily life or in restaurants. When used, safety precautions are often caused by user misoperation or carelessness. For example, if you forget to extinguish the fire of the gas stove, the pot will be burned empty, which may lead to a fire, which may threaten the safety of the user's life and property.

Therefore, a safety device for a gas stove that effectively prevents empty heating is required.

The present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a safety device for a gas stove that effectively prevents empty burning when used.
The safety device of the gas stove according to the embodiment of the present disclosure includes a support component, an outer sleeve, and a temperature sensor assembly.
The support component includes a support component body and a circumferential protrusion connected to the upper end of the support component body.
The outer sleeve includes an outer sleeve main body to be connected and a reduced diameter portion, a sleeve shoulder portion is formed between the outer sleeve main body and the reduced diameter portion, and the circumferential protrusion is inside the outer sleeve main body. An elastic component is connected between the circumferential protrusion and the upper end of the outer sleeve body, and the sleeve shoulder can prevent the circumferential protrusion from falling off from the outer sleeve body. , The reduced diameter portion is extrapolated to the outside of the support component body,
The temperature sensor assembly is installed inside the outer sleeve body and is connected to the outer sleeve body so that the temperature at the bottom of the pot can be measured.
A guide structure is provided between the reduced diameter portion and the support component main body, the outer sleeve can reciprocate with respect to the support component along the axial direction of the support component, and the elastic component can move back and forth. It is supported between the circumferential protrusion and the upper end of the outer sleeve body.

Preferably, the guide structure includes a guide recess and a guide protrusion that engage with each other, and when the guide recess is provided on the inner surface of the reduced diameter portion, the guide protrusion is provided on the outer surface of the support component main body. When the guide concave groove is provided on the outer surface of the support component main body, the guide protrusion is provided on the inner surface of the reduced diameter portion, and the guide concave groove and the guide protrusion are both said. It extends along the axial direction of the support component.

Preferably, the guide recess or the guide protrusion in the support component body is configured to extend to the circumferential protrusion.
Alternatively, the guide concave groove or the guide protrusion in the support component main body is configured to extend at a distance from the circumferential protrusion.

Preferably, the cross-sectional shapes of the guide groove and the guide protrusion are both triangular, rectangular or semi-circular.
Two of the guide protrusions are provided, the two guide protrusions are provided symmetrically, and the guide concave groove is provided one-to-one with the guide protrusion.

Preferably, the safety device of the gas stove further has a fireproof cover, and the fireproof cover includes a fireproof cover main body and a fireproof cover diameter reduction portion, and is between the fireproof cover main body and the fireproof cover diameter reduction portion. The fire cover shoulder is connected to
The fireproof cover main body is extrapolated to the outer sleeve main body and installed at a distance from the outer sleeve main body, the reduced diameter portion of the fireproof cover is extrapolated to the reduced diameter portion, and heat is dissipated to the shoulder portion of the fireproof cover. A through hole is provided, and the fireproof cover shoulder portion is fixedly connected to the sleeve shoulder portion.
The temperature sensor assembly comprises a temperature sensitive column, the temperature sensitive column is installed at the upper end of the outer sleeve body, and the upper end of the fire protection cover is located below the upper surface of the temperature sensitive column.
The fireproof cover is made of an antioxidant material.

Preferably, the safety device of the gas stove further has an inner sleeve, the inner sleeve is installed inside the outer sleeve, the upper end of the inner sleeve is fixedly connected to the upper end of the outer sleeve, and the lower end of the inner sleeve. Can be inserted into the support component body, and the elastic component is extrapolated to the inner sleeve.
The support component further includes an extension tube and an engaging portion, and the upper end of the extension tube is connected to the lower end of the support component body.
The support component further includes an engaging portion, and the engaging portion is provided on the outer surface of the extension pipe.

Preferably, the temperature sensor assembly further comprises a thermistor, a cable and a connector, the connector is arranged to be electrically connected to the switch of the gas stove, and the temperature sensitive column is installed at the upper end of the outer sleeve. , The upper end of the inner sleeve is connected to the outer sleeve via the temperature sensitive column,
The inner sleeve is an insulating inner sleeve.

Preferably, the thermistor is installed in the inner sleeve, the thermistor comes into contact with the temperature sensitive column, the thermistor is electrically connected to one end of the cable, and the other end of the cable protrudes from the support component body. It is electrically connected to the connector.

Preferably, the support component is a stepped support tube including a support tube body and an expansion tube to be connected, and the tube wall of the expansion tube is along the circumferential direction with respect to the tube wall of the support tube body. Protruding outward, the circumferential protrusion is connected between the expansion tube and the support tube main body, and the expansion tube and the circumferential protrusion are installed in the outer sleeve main body, and the support tube main body The lower end can protrude from the reduced diameter portion,
The lower end of the elastic component is inserted into the expansion tube and comes into contact with the circumferential protrusion.

Preferably, a glass fiber silica gel cover is externally attached to the outer surface of the cable.

Preferably, one or more of the circumferential protrusions of the safety device of the gas stove are provided so as to extend to the outside of the circumferential edge of the support component body, and one circumferential protrusion is provided. When the circumferential protrusions extend continuously along the circumferential edge of the upper end of the support component main body and a plurality of circumferential protrusions are provided, the circumferential protrusions are spaced at equal intervals. Is connected to the circumferential edge of the upper end of the support component body.

Preferably, the outer diameter of the support component main body is provided smaller than the inner diameter of the reduced diameter portion, and the outer diameter of the circumferential protrusion is smaller than the inner diameter of the outer sleeve main body and larger than the inner diameter of the reduced diameter portion. Provided.

Preferably, one end of the elastic part is in contact with the temperature sensitive column, the other end is in contact with the circumferentially raised inner wall, and the elastic part has the outer sleeve down with respect to the support part. It is arranged so that it can be moved and compressed by an external force in the second state.

Preferably, the temperature sensitive column comprises a base column and concentrically provided inner and outer rings on the base column, the inner sleeve being extrapolated to the inner ring of the temperature sensitive column and said outer. The sleeve is extrapolated to the outer ring of the temperature sensitive column.

Preferably, one end of the elastic component that comes into contact with the temperature sensitive column is installed between the inner ring and the outer ring of the temperature sensitive column.

Preferably, the elastic component is a spring.

It is an object of the present disclosure to provide, for example, a gas stove that utilizes the safety device of the gas stove. When using the gas stove, the safety device of the gas stove can effectively realize the function of preventing empty heating, and the safety of the gas stove is improved.

The safety device of the gas stove according to the embodiment of the present application has a simple structure, can be easily processed, can realize the function of preventing the gas stove from burning in the air, and has improved the safety of the gas stove. In addition, the overall configuration was rational without losing balance, was easy to manufacture and install, and reduced production costs. Since it can contribute to the smoothness of relative sliding between the support component and the outer sleeve, further reduce noise and realize a long life, the quality and market competitiveness of the safety device of the gas stove have been improved.

In order to make it easier to understand the above-mentioned objectives, features and merits of the present application, the following will be described in detail with reference to preferred examples and drawings.

Hereinafter, in order to more clearly explain the specific embodiment or the technical proposal of the prior art in the present disclosure, the drawings necessary for the specific embodiment or the technical proposal of the prior art will be briefly described. Of course, the drawings described are only a partial example of the present disclosure. Those skilled in the art can obtain other drawings based on these drawings without using the ability to invent.

It is a block diagram of the 1st state of the safety device of the gas stove which concerns on embodiment of this disclosure. It is a block diagram of the 2nd state of the safety device of the gas stove which concerns on embodiment of this disclosure. It is another structural schematic diagram of the 1st state of the safety device of the gas stove which concerns on embodiment of this disclosure. It is a structural schematic diagram of the outer sleeve of the safety device of the gas stove which concerns on embodiment of this disclosure. It is a block diagram of the support part of the safety device of the gas stove which concerns on embodiment of this disclosure. It is a structural schematic diagram of the inner sleeve of the safety device of the gas stove which concerns on embodiment of this disclosure. It is a block diagram of the fire protection cover of the safety device of the gas stove which concerns on embodiment of this disclosure. It is a block diagram of the temperature sensor assembly of the safety device of the gas stove which concerns on embodiment of this disclosure.

Hereinafter, the technical proposal of the present disclosure will be clearly and completely described with reference to the drawings. It goes without saying that the examples described are only a part of the examples of the present disclosure and not all of them. All other examples obtained by those skilled in the art based on the examples of the present disclosure without using the invention ability also belong to the scope of protection of the present disclosure.

In the description of the present disclosure, the direction or direction represented by terms such as "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The positional relationship is based on the drawings and is merely for convenience and brief explanation of the present disclosure, and the corresponding device or element always has a specified direction or is configured in a specified direction. It should be understood that this disclosure is not limiting, as it does not express or imply that it will be manipulated. It should also be understood that terms such as "first", "second", and "third" are merely for explanation and do not explicitly or imply relative importance.

In the description of the present disclosure, terms such as "mounting", "linkage", and "connection" should be broadly understood unless expressly defined and limited. For example, it may be a fixed connection, a removable connection, or an integrated connection. Then, it may be a mechanical connection or an electrical connection. Further, it may be directly connected, may be indirectly connected via an intermediate, or the insides of the two elements may communicate with each other. One of ordinary skill in the art can understand the specific meanings of the above terms in the present disclosure according to the specific circumstances.

As shown in FIGS. 1 to 8, this embodiment provides a safety device for a gas stove. FIG. 1 is a schematic configuration diagram of a first state of the safety device of the gas stove according to the present embodiment, and specifically shows the positional relationship between the parts in the unused state. FIG. 2 is a schematic configuration diagram of a second state of the safety device of the gas stove according to the present embodiment, and specifically shows the positional relationship between the parts in the used state. FIG. 3 is a schematic diagram of another configuration of the first state of the safety device of the gas stove according to the present embodiment. Specifically, in order to more clearly show the characteristics of the configuration, only the temperature sensitive column and thermistor of the temperature sensor assembly are shown. Is left, and other parts in the temperature sensor assembly are omitted. FIG. 4 is a schematic configuration diagram of an outer sleeve of the safety device of the gas stove according to the present embodiment. FIG. 5 is a schematic configuration diagram of support parts for the safety device of the gas stove according to the present embodiment. FIG. 6 is a schematic configuration diagram of an inner sleeve of the safety device of the gas stove according to the present embodiment. FIG. 7 is a schematic configuration diagram of a fireproof cover of the safety device of the gas stove according to the present embodiment. FIG. 8 is a schematic configuration diagram of a temperature sensor assembly of the safety device of the gas stove according to the present embodiment. Of these, FIGS. 1 to 3 are cross-sectional views, and hatching is omitted in order to show the configuration more clearly.

The safety device of the gas stove according to the present embodiment can prevent the gas stove from burning in the air.

As shown in FIGS. 1 to 8, the safety device of the gas stove has a support component 1. The support component 1 includes a support component main body 10 and a circumferential protrusion 11 connected to the upper end of the support component main body 10. It is preferable that one or a plurality of circumferential protrusions 11 are provided. When one circumferential protrusion 11 is provided, the circumferential protrusion extends continuously along the circumferential edge of the upper end of the support component body 10 and the circumferential edge of the support component body 10. It is configured to stick out of the way. As shown in FIG. 5, it is preferable that the configuration is such that the same width protrudes from the edge in the circumferential direction. Alternatively, when a plurality of circumferential protrusions 11 are provided, the plurality of circumferential protrusions 11 are connected to the circumferential edge of the upper end of the support component main body 10 at equal or non-equal intervals.

The safety device of the gas stove further includes an outer sleeve 2, which includes a connected outer sleeve body 20 and a reduced diameter portion 21. Since the inner diameter of the outer sleeve body 20 is larger than the inner diameter of the reduced diameter portion 21, the sleeve shoulder portion 22 is formed at the connection point between the two. Further, in the outer sleeve main body 20, the elastic component 8 is connected between the circumferential protrusion 11 and the upper end of the outer sleeve main body 20. Hereinafter, the elastic component 8, and the method of connecting the elastic component 8 to the circumferential protrusion 11 and the outer sleeve main body 20 will be described in detail. The sleeve shoulder portion 22 can prevent the circumferential protrusion 11 from falling off from the outer sleeve main body 20, and the diameter-reduced portion 21 is extrapolated to the outside of the support component main body 10. Specifically, the support component 1 is slidably inserted into the outer sleeve 2. Specifically, in the support component 1, the outer diameter of the support component main body 10 is smaller than the inner diameter of the reduced diameter portion 21, the outer diameter of the circumferential protrusion 11 is smaller than the inner diameter of the outer sleeve main body 20, and the reduced diameter portion 21. It is configured to be larger than the inner diameter of. Therefore, when the lower end of the support component 1 (the end separated from the circumferential protrusion 11) is inserted into the outer sleeve 2 from the end separated from the diameter-reduced portion 21 of the outer sleeve main body 20, or by other means, the support component 1 Is installed in the outer sleeve 2, the outer sleeve 2 can slide up and down with respect to the support component 1. When the sleeve shoulder portion 22 of the outer sleeve 2 comes into contact with the circumferential protrusion 11, the sliding is stopped, and the position is the limit position where the outer sleeve 2 can slide upward with respect to the support component 1.

It is preferable that the outer sleeve main body 20, the reduced diameter portion 21, and the support component main body 10 have a circular cross-sectional shape. Depending on the situation, the cross-sectional shape of the outer sleeve main body 20, the diameter-reduced portion 21, and the support component main body 10 may be formed in a polygonal shape. Due to sliding inside the outer sleeve body 20 and the reduced diameter portion 21 of the support component main body 10, the cross-sectional shape of the outer wall of the support component main body 10 matches the cross-sectional shape of the inner walls of both the outer sleeve main body 20 and the reduced diameter portion 21. It is preferably formed in.

The gas stove safety device further comprises a temperature sensor assembly 3. The temperature sensor assembly 3 is installed inside the outer sleeve body 20 and is connected to the outer sleeve body 20 by, for example, engaging. As a result, the temperature sensor assembly 3 can move up and down with respect to the support component main body 10 together with the outer sleeve main body 20. The temperature sensor assembly 3 can measure the temperature at the bottom of the pan. By installing the temperature sensor assembly 3 inside the outer sleeve body 20, the temperature sensor assembly 3 and the fire of the gas stove can be separated from each other, so that the temperature sensor can be prevented from burning due to the fire of the gas stove, and the bottom of the pot can be prevented from burning. More accurate temperature measurement by the temperature sensor can be guaranteed.

Further, in order to realize the reciprocating movement of the outer sleeve 2 along the axial direction of the support component 1 with respect to the support component 1, a guide structure is provided between the diameter reduction portion 21 and the support component main body 10. The guide structure can prevent the outer sleeve 2 from rotating in the circumferential direction with respect to the support component 1, and can guarantee the movement of the outer sleeve 2 along the axial direction of the support component 1. Therefore, a safety device for the gas stove when used. Stability can be ensured. The elastic component 8 is supported between the circumferential protrusion 11 and the upper end of the outer sleeve body 20. In the unused state, that is, in the first state, the elastic component 8 is not compressed by an external force and is in an extended state, so that the elastic component 8 drives the movement of the outer sleeve 2 with respect to the support component 1. When the circumferential protrusion 11 comes into contact with the sleeve shoulder portion 22, the outer sleeve 2 and the support component 1 are fixed to each other, so that the outer sleeve 2 and the support component 1 in an unused state are wastefully worn. It was possible to prevent this and extend the life of the safety device of the gas stove.

The operating principle of the safety device of the gas stove is as follows. The lower end of the support component main body 10 is fixed to the gas stove. In the unused state, the elastic component 8 moves the outer sleeve 2 upward with respect to the support component 1 until the circumferential protrusion 11 abuts on the sleeve shoulder 22. As a result, the positional restriction in the axial direction is realized between the outer sleeve 2 and the support component 1, and it is possible to prevent the outer sleeve 2 and the support component 1 from being detached in the axial direction. In the used state, the bottom of the pot presses the outer sleeve body 20, and the elastic part 8 is compressed by the gravity of the pot, so that the movement of the outer sleeve 2 with respect to the support part 1 is allowed. When the position of the bottom of the pan becomes stable, the outer sleeve 2 and the support component 1 are in a relative stationary state, so that the elastic component 8 is supported between the outer sleeve 2 and the support component 1. In this case, the temperature sensor assembly 3 inside the outer sleeve 2 measures the temperature at the bottom of the pot and converts the temperature information into an electrical signal. This controls the switch of the gas stove. The measurement of the temperature at the bottom of such a pan may be performed continuously or intermittently, and can be preset as needed. Specifically, when the temperature at the bottom of the pot measured by the temperature sensor was too high, the fire of the gas stove was extinguished to prevent the gas stove from burning empty, and the safety of the gas stove was improved.

In particular, the safety device of the gas stove realizes expansion and contraction of the elastic component 8 in the vertical direction with respect to the guide structure by providing the guide structure between the reduced diameter portion 21 and the support component main body 10, and the diameter of the support component main body 10. Improved the space utilization rate in the direction. As a result, it is possible to prevent the elastic component 8 and the guide structure from being arranged in the radial direction of the elastic component 8, so that it is possible to prevent the outer sleeve 2 from being excessive in the radial dimension, and it is possible to prevent the safety device of the gas stove from becoming excessive. The overall composition has become rational. Further, a guide structure is directly provided between the reduced diameter portion 21 and the support component main body 10, that is, a part of the guide structure is integrally molded with the reduced diameter portion 21, and the remaining portion of the guide structure is supported. By being integrally molded with the component body 10, it is easier to integrally mold and it is necessary to separately manufacture a component having a complicated structure, as compared with manufacturing a liner having a complicated structure individually to realize a guide. Since there is no such thing, the production cost is low. Further, since the support component 1 and the outer sleeve 2 are formed by stretching, the outer surface of the support component main body 10 becomes a smooth surface. By providing a guide structure between the support component main body 10 and the storage portion, it is possible to contribute to the smoothness of relative sliding between the support component 1 and the outer sleeve 2, further reduce noise, and realize a long life. Therefore, the quality and market competitiveness of the safety device of the gas stove have been improved.

The safety device of the gas stove of this embodiment has a simple configuration, can be easily processed, can realize the function of preventing the gas stove from burning in the air, and has improved the safety of the gas stove. In addition, the overall configuration was rational without losing balance, was easy to manufacture and install, and reduced production costs. Further, it can contribute to the smoothness of relative sliding between the support component 1 and the outer sleeve 2, further reduce noise, and realize a long life, so that the quality and market competitiveness of the safety device of the gas stove can be improved. Improved.

In a preferred technical proposal of this embodiment, the guide structure includes a guide recess 4 and a guide protrusion 5 that engage with each other. The guide concave groove 4 is provided on the inner surface of the reduced diameter portion 21 or the outer surface of the support component main body 10, and the guide protrusion 5 is provided on the outer surface of the support component main body 10 or the inner surface of the reduced diameter portion 21, and the guide concave groove 4 and the guide are provided. Both the protrusions 5 extend along the axial direction of the support component 1. That is, when the guide concave groove 4 is provided on the inner surface of the reduced diameter portion 21, the guide protrusion 5 is provided on the outer surface of the support component main body 10, and the guide protrusion 5 and the guide concave groove 4 are engaged and connected to each other. Relative sliding between the outer sleeve 2 and the support component 1 is realized. Alternatively, when the guide protrusion 5 is provided on the inner surface of the reduced diameter portion 21, the guide concave groove 4 is provided on the outer surface of the support component main body 10, and the guide protrusion 5 and the guide concave groove 4 are engaged and connected to each other. Relative sliding between the outer sleeve 2 and the support component 1 is realized.

Since the structure of the guide concave groove 4 and the guide protrusion 5 is simple and can be easily processed, it is easy to integrally mold the diameter-reduced portion 21 and the support component main body 10. It is preferable that the guide concave groove 4 and the guide protrusion 5 are connected by an intermediate fit. As a result, the closeness of engagement can be guaranteed and the requirement for smoothness can be satisfied.

Preferably, the outer sleeve body 20 is a straight pipe, the inner diameter thereof is 10.5 ± 0.05 mm, the inner diameter of the reduced diameter portion 21 is 8.3 ± 0.1 mm, and the shaft of the reduced diameter portion 21. The length in the direction is 5 to 6 mm.

In a preferred technical proposal of the present embodiment, the guide concave groove 4 or the guide convex groove 5 in the support component main body 10 extends to the circumferential protrusion 11, and the guide convex groove 5 or the guide concave groove 4 in the reduced diameter portion 21 is a sleeve. It is configured to extend to the shoulder 22. As a result, the contact area between the guide protrusion 5 and the guide concave groove 4 is increased, and the stability of the relative sliding between the support component 1 and the outer sleeve 2 is improved.

Alternatively, the guide concave groove 4 or the guide convex groove 5 in the support component main body 10 extends to a position separated from the circumferential protrusion 11 by a certain distance, and the guide convex groove 5 or the guide concave groove 4 in the reduced diameter portion 21 extends to the sleeve shoulder. It is configured to extend to a portion separated from the portion 22 by a certain distance. As a result, the guide protrusion 5 and the guide concave groove 4 can be machined while avoiding the sleeve shoulder portion 22 and the circumferential protrusion 11. Specifically, the guide concave groove 4 and the guide protrusion 5 may be configured to extend to a part of the reduced diameter portion 21 or the support component main body 10 in the vertical direction. As shown in FIGS. 4 and 5, the guide protrusion 5 includes an open end and a sealing end, the open end is located at one end of the reduced diameter portion 21, and the sealed end is the reduced diameter portion 21. Located in the central part. The guide groove 4 includes an open end and a sealing end, the open end is located at one end of the support component main body 10, and the sealing end is located in the middle of the support component main body 10. Therefore, the mutual engagement between the guide concave groove 4 and the guide protrusion 5 not only serves as a guide but also as a stop. For example, when the sealing end of the guide protrusion 5 comes into contact with the sealing end of the guide concave groove 4, it is possible to prevent the outer sleeve 2 from sliding upward and detaching from the support component 1.

In the preferred technical proposal of this embodiment, the cross-sectional shape of the guide concave groove 4 and the guide protrusion 5 is a triangle, a rectangle, a semicircle, or the like.

One or a plurality of guide protrusions 5 may be provided, and it is preferable that two guide protrusions 5 are provided. The two guide protrusions 5 are provided symmetrically, and the guide concave groove 4 is provided one-to-one with the guide protrusion 5. The stability of the guides in the guide structure was improved by the two symmetrically provided guide protrusions 5 and the correspondingly symmetrically provided two guide recesses 4. Further, as compared with the technical proposal in which more guide protrusions 5 are provided, it is possible to reduce the difficulty of processing and the requirement for mounting accuracy, which is cost effective.

Preferably, the guide groove 4 has a radial depth of the support component main body 10 of 0.8 to 1.5 mm, extends along the axial direction of the support component main body 10, and the support component main body 10 thereof. The axial length of the support component body 10 is 20 to 27 mm, and extends 1 to 2 mm along the circumferential direction of the support component main body 10.

Preferably, the guide protrusion 5 has a radial depth of the reduced diameter portion 21 of 0.8 to 1.5 mm, extends along the axial direction of the reduced diameter portion 21, and the reduced diameter portion 21 thereof. The axial length of is 3 to 6 mm, and extends 1 to 2 mm along the circumferential direction of the reduced diameter portion 21.

In the preferred technical proposal of this embodiment, the safety device of the gas stove further includes a fire protection cover 6. The fireproof cover 6 includes a fireproof cover main body 60 and a fireproof cover reduced diameter portion 61, and the inner diameter of the fireproof cover main body 60 is formed to be larger than the inner diameter of the fireproof cover reduced diameter portion 61. As a result, the fireproof cover shoulder portion 62 is formed at the connection portion between the fireproof cover main body 60 and the fireproof cover reduced diameter portion 61. Preferably, the cross-sectional shape of the fireproof cover main body 60 is formed to be the same as the cross-sectional shape of the outer sleeve main body 20, and the cross-sectional shape of the fireproof cover reduced diameter portion 61 is formed to be the same as the cross-sectional shape of the reduced diameter portion 21.

As shown in FIGS. 1 to 7 and 7, the fireproof cover main body 60 is extrapolated to the outer sleeve main body 20 and installed at intervals from the outer sleeve main body 20. The reduced diameter portion 61 of the fireproof cover is extrapolated to the reduced diameter portion 21, a heat radiation through hole 63 is provided in the shoulder portion 62 of the fireproof cover, and the shoulder portion 62 of the fireproof cover is fixedly connected to the shoulder portion 22 of the sleeve. Therefore, when the outer sleeve 2 reciprocates along the axial direction of the support component 1, the fireproof cover 6 also moves together with the outer sleeve 2. Further, by installing the heat radiation through hole 63, the flow velocity of the air inside the protective cover 6 can be increased, so that the heat radiation inside the fire protection cover 6 can be contributed. Therefore, the temperature sensor assembly 3 can be protected and the accuracy of temperature measurement can be improved.

Further, the temperature sensor assembly 3 includes a temperature sensitive column 30 installed at the upper end of the outer sleeve main body 20. In the vertical direction, that is, in the axial direction, the upper end of the fireproof cover 6 is located below the upper surface of the temperature sensitive column 30. That is, in the axial direction, there is a step between the upper end of the fireproof cover 6 and the upper surface of the temperature sensitive column 30. Therefore, when the temperature sensitive column 30 comes into contact with the bottom of the pot, the bottom of the pot does not contact the upper end of the fireproof cover 6, but only the upper surface of the temperature sensitive column 30, and the high temperature pot of the fireproof cover 6 comes into contact. Since it is possible to prevent long-term contact with the bottom of the fireproof cover 6, it is possible to extend the life of the fireproof cover 6. Further, by installing the heat dissipation through hole 63, the flow of air and heat dissipation can be promoted, so that the concentration of heat on the temperature sensitive column 30 can be prevented, and the accuracy of temperature measurement is always ensured. be able to.

Preferably, the elastic component 8 is supported between the temperature sensitive column 30 and the inner wall of the circumferential protrusion 11. Therefore, since the temperature-sensitive column 30 can be brought into close contact with the bottom of the pan by the elastic component 8, the real-time property and accuracy of the temperature collection of the temperature-sensitive column 30 can be improved. Further, when the temperature sensitive assembly in the temperature sensor assembly comes into contact with the temperature sensitive column 30, the temperature at the bottom of the pan can be accurately measured.

Preferably, the temperature sensitive column 30 is made of a material having a high thermal conductivity, and the thermal conduction is high, so that the temperature at the bottom of the pan can be reflected quickly and accurately.

Since the fireproof cover 6 is made of an antioxidant, it can be ensured that the fireproof cover 6 does not discolor even when used for a long time in the high temperature environment of the fire of the gas stove. This makes it look good and can effectively protect the temperature sensor assembly 3 inside the outer sleeve 2.

Preferably, the outer diameter of the fireproof cover main body 60 is 1.5 to 2 times the outer diameter of the outer sleeve main body 20. Preferably, the axial length of the fireproof cover main body 60 is configured to be 0.3 to 1 mm shorter than the axial length of the outer sleeve main body 20. The upper surface of the temperature sensitive column 30 projects upward so as to be 0.3 to 5 mm higher than the upper end edge of the fireproof cover main body 60.

In the preferred technical proposal of this embodiment, the safety device of the gas stove further includes an inner sleeve 7. The inner sleeve 7 is installed inside the outer sleeve 2, the upper end thereof is fixedly connected to the upper end of the outer sleeve 2, and the lower end thereof can be inserted into the support component main body 10. The elastic component 8 is externally inserted into the inner sleeve 7. By installing the inner sleeve 7, the inner surface of the elastic part 8 can be supported, so that twisting of the elastic part 8 during use can be avoided, and the stability of expansion and contraction of the safety device of the gas stove can be improved. Can be done.

The support component 1 includes an extension tube and an engaging portion 13, the upper end of the extension tube is connected to the lower end of the support component main body 10, and the engaging portion 13 is installed on the outer surface of the extension tube along the circumferential direction. By installing the extension pipe and the engaging portion 13, the connection between the safety device and the gas stove can be realized more reliably.

Preferably, the engaging portion 13 is made of a metal ring, the thickness of the metal ring in the radial direction is 1 to 1.5 mm, and the metal ring is 8 to 15 mm from the lower end edge of the extension tube. It is crimped to the place of.

Preferably, the upper end of the inner sleeve 7 is fixedly connected to the upper end of the outer sleeve 2 via the temperature sensitive column 30. Specifically, as shown in FIGS. 1 to 3, the upper end of the inner sleeve 7 is fixedly connected to the temperature sensitive column 30 by, for example, engaging, and further, the upper end of the inner sleeve 7 is fixedly connected to the outer sleeve main body 20. It is indirectly fixedly connected to the upper end of the outer sleeve 2. The upper end of the inner sleeve 7 may be directly fixedly connected to the upper end of the outer sleeve 2.

In a preferred technical proposal of this embodiment, the temperature sensor assembly 3 further comprises a thermistor 31, a cable 32, and a connector 33, the connector 33 being electrically connected to a switch on the gas stove. The temperature sensitive column 30 is installed at the upper end of the outer sleeve 2, and the upper end of the inner sleeve 7 is connected to the outer sleeve 2 via the temperature sensitive column 30.

As shown in FIG. 8, the thermistor 31 is installed in the inner sleeve 7, one end of which is in contact with the temperature sensitive column 30, and the other end of which is electrically connected to one end of the cable 32. The other end of the cable 32 protrudes from the support component main body 10 and is electrically connected to the connector 33.

The inner sleeve 7 is an insulating inner sleeve. Further, the inner sleeve 7 may be made of a high temperature resistant material. Therefore, the safety of the circuit of the temperature sensor assembly 3 can be guaranteed.

Preferably, the thermistor 31 is an NTC thermistor 31 (negative temperature coefficient thermistor), the cable 32 is connected to the thermistor 31 by resistance welding or terminal crimping, and the connector 33 is a quick connector. Therefore, it meets the standards and can be quickly and easily connected to external circuits with a quick connector.

Preferably, the temperature sensitive column 30 includes a base column and an inner ring and an outer ring that are concentrically installed on the base column. The outer diameter of the base column is 8 to 12 mm. The vertical thickness of the base column is 0.3 to 1 mm. The outer diameter of the outer ring is 0.3 to 0.5 mm smaller than the outer diameter of the base ring. The radial thickness of the outer ring is 0.8 to 1.0 mm. The length of the outer ring in the vertical direction is 2.5 to 3 mm. The radial thickness of the inner ring is 0.7 to 1.5 mm. The length of the inner ring in the vertical direction is 5 to 8 mm. The inner sleeve 7 is extrapolated to the inner ring of the temperature sensitive column 30, the outer sleeve 2 is extrapolated to the outer ring of the temperature sensitive column 30, and the elastic component 8 is the inner ring and outer ring of the temperature sensitive column 30. It is installed between.

Preferably, the glass ball of the thermistor 31 is installed in the inner ring of the temperature sensitive column 30 and attached to the base column of the temperature sensitive column 30.

In the preferred technical proposal of this embodiment, the glass fiber silica gel cover 34 is externally inserted on the outer surface of the cable 32. As a result, it is possible to avoid unauthorized connection of the plurality of cables 32 to each other, and it is possible to guarantee the safety of the safety device of the gas stove.

In a preferred technical proposal of this embodiment, the support component 1 has a stepped support tube including a support tube body and an expansion tube to be connected. The tube wall of the expansion tube projects outward along the circumferential direction with respect to the tube wall of the support tube body. A circumferential protrusion 11 is connected between the expansion tube and the support tube main body, the expansion tube and the circumferential protrusion 11 are installed in the outer sleeve main body 20, and the lower end of the support tube main body is from the reduced diameter portion 21. It may stick out.

The lower end of the elastic component 8 is inserted into the expansion tube and comes into contact with the circumferential protrusion 11. By installing the expansion pipe, it is possible to prevent the elastic component 8 from sliding in the radial direction with respect to the circumferential protrusion 11.

It should be noted that each of the above embodiments is merely for explaining the technical proposal of the present disclosure, and does not limit it. Although the present disclosure has been described in detail with reference to each of the above embodiments, one of ordinary skill in the art may modify the technical proposals described in each of the above embodiments, in part or in whole. The features may be replaced evenly. These changes or replacements do not deviate from the essence of the proposed technology within the scope of the proposed technology of each embodiment of the present disclosure. In addition, although some of the above-described examples have some features included in the other examples, the combination of the features of different examples also becomes another example belonging to the scope of the present disclosure. Those skilled in the art should understand. For example, in the scope of claims, the examples to be protected may be arbitrarily combined. The information disclosed in the background technology part is for deepening the understanding of the background technology as a whole of the present invention, and acknowledges or implies in any form that it is a well-known prior art for those skilled in the art. It should be understood that it is not.

The present disclosure provides a safety device for a gas stove and a gas stove that utilizes the safety device for the gas stove. The safety device of the gas stove has a simple structure, can be easily processed, can realize a function of preventing the gas stove from burning in the air, and has improved the safety of the gas stove. In addition, the overall configuration was rational without losing balance, was easy to manufacture and install, and reduced production costs. Further, it can contribute to the smoothness of relative sliding between the support component and the outer sleeve, reduce wear, further reduce noise, and realize a long life, so that the quality and market of the safety device of the gas stove can be realized. Improved competitiveness.

1 ... Support part 10 ... Support part body 11 ... Circumferential protrusion 13 ... Engagement part 2 ... Outer sleeve 20 ... Outer sleeve body 21 ... Diameter reduction part 22 ... Sleeve shoulder part 3 ... Temperature sensor assembly 30 ... Temperature sensitive column 31 Thermistor 32 ... Cable 33 ... Connector 34 ... Glass fiber silica gel cover 4 ... Guide concave groove 5 ... Guide protrusion 6 ... Fireproof cover 60 ... Fireproof cover body 61 ... Fireproof cover diameter reduction 62 ... Fireproof cover shoulder 63 ... Heat dissipation penetration Hole 7 ... Inner sleeve 8 ... Elastic part

Claims (17)

It has a support part, an outer sleeve, and a temperature sensor assembly.
The support component includes a support component body and a circumferential protrusion connected to the upper end of the support component body.
The outer sleeve includes an outer sleeve main body to be connected and a reduced diameter portion, a sleeve shoulder portion is formed between the outer sleeve main body and the reduced diameter portion, and the circumferential protrusion is inside the outer sleeve main body. An elastic component is connected between the circumferential protrusion and the upper end of the outer sleeve body, and the sleeve shoulder can prevent the circumferential protrusion from falling off from the outer sleeve body. , The reduced diameter portion is extrapolated to the outside of the support component body,
The temperature sensor assembly is installed inside the outer sleeve body and is connected to the outer sleeve body so that the temperature at the bottom of the pot can be measured.
A guide structure is provided between the reduced diameter portion and the support component main body, the outer sleeve can reciprocate with respect to the support component along the axial direction of the support component, and the elastic component can move back and forth. A safety device for a gas stove, which is supported between the circumferential protrusion and the upper end of the outer sleeve body. The guide structure comprises a guide recess and a guide protrusion that engage with each other.
When the guide concave groove is provided on the inner surface of the diameter-reduced portion, the guide protrusion is provided on the outer surface of the support component main body, and when the guide concave groove is provided on the outer surface of the support component main body, the diameter is reduced. The guide protrusion is provided on the inner surface of the portion, and the guide protrusion is provided.
The safety device for a gas stove according to claim 1, wherein both the guide groove and the guide protrusion extend along the axial direction of the support component. The guide concave groove or the guide protrusion in the support component main body is configured to extend to the circumferential protrusion.
Alternatively, the safety of the gas stove according to claim 2, wherein the guide concave groove or the guide protrusion in the support component main body is configured to extend at a distance from the circumferential protrusion. Device. The cross-sectional shapes of the guide groove and the guide protrusion are both triangular, rectangular or semi-circular.
One of claims 1 to 3, wherein two guide protrusions are provided, the two guide protrusions are provided symmetrically, and the guide concave groove is provided one-to-one with the guide protrusion. The safety device for the gas stove according to item 1. In addition, it has a fireproof cover,
The fireproof cover includes a fireproof cover main body and a fireproof cover diameter reduction portion, and a fireproof cover shoulder portion is connected between the fireproof cover main body and the fireproof cover diameter reduction portion.
The fireproof cover main body is extrapolated to the outer sleeve main body and installed at a distance from the outer sleeve main body, the reduced diameter portion of the fireproof cover is extrapolated to the reduced diameter portion, and heat is dissipated to the shoulder portion of the fireproof cover. A through hole is provided, and the fireproof cover shoulder portion is fixedly connected to the sleeve shoulder portion.
The temperature sensor assembly comprises a temperature sensitive column, the temperature sensitive column is installed at the upper end of the outer sleeve body, and the upper end of the fire protection cover is located below the upper surface of the temperature sensitive column.
The safety device for a gas stove according to any one of claims 1 to 4, wherein the fireproof cover is made of an antioxidant. The safety device of the gas stove further has an inner sleeve, the inner sleeve is installed inside the outer sleeve, the upper end of the inner sleeve is fixedly connected to the upper end of the outer sleeve, and the lower end of the inner sleeve is the support. It can be inserted into the body of the part, and the elastic part is extrapolated to the inner sleeve.
The support component further includes an extension tube and an engaging portion, and the upper end of the extension tube is connected to the lower end of the support component body.
The safety device for a gas stove according to any one of claims 1 to 5, wherein the support component further includes an engaging portion, and the engaging portion is provided on the outer surface of the extension pipe. The temperature sensor assembly further comprises a thermistor, cables and connectors.
The connector is arranged so as to be electrically connected to the switch of the gas stove, the temperature sensitive column is installed at the upper end of the outer sleeve, and the upper end of the inner sleeve is connected to the outer sleeve via the temperature sensitive column. Connected,
The safety device for a gas stove according to any one of claims 1 to 6, wherein the inner sleeve is an insulated inner sleeve. The thermistor is installed in the inner sleeve, the thermistor comes into contact with the temperature sensitive column, the thermistor is electrically connected to one end of the cable, the other end of the cable protrudes from the support component main body, and the connector and the connector. The safety device for a gas stove according to claim 7, wherein the gas stove is electrically connected. The support component is a stepped support tube including a support tube main body and an expansion tube to be connected.
The tube wall of the expansion tube projects outward along the circumferential direction with respect to the tube wall of the support tube main body.
The circumferential protrusion is connected between the expansion tube and the support tube main body, the expansion tube and the circumferential protrusion are installed in the outer sleeve main body, and the lower end of the support tube main body is shrunk. It can protrude from the diameter part,
The safety device for a gas stove according to any one of claims 1 to 8, wherein the lower end of the elastic component is inserted into the expansion pipe and comes into contact with the circumferential protrusion. The safety device for a gas stove according to any one of claims 7 to 9, wherein a glass fiber silica gel cover is externally attached to the outer surface of the cable. The circumferential protrusion of the gas stove safety device is provided one or more, and is installed so as to extend to the outside of the circumferential edge of the support component main body.
When one circumferential protrusion is provided, the circumferential protrusion extends continuously along the circumferential edge of the upper end of the support component body.
Any one of claims 1 to 10, wherein when a plurality of circumferential protrusions are provided, the circumferential protrusions are connected to the circumferential edge of the upper end of the support component main body at equal intervals. The gas stove safety device described in the section. The outer diameter of the support component main body is provided smaller than the inner diameter of the reduced diameter portion, and the outer diameter of the circumferential protrusion is provided smaller than the inner diameter of the outer sleeve main body and larger than the inner diameter of the reduced diameter portion. The gas stove safety device according to any one of claims 1 to 11. One end of the elastic part is in contact with the temperature-sensitive column, and the other end is in contact with the inner wall of the circumferential protrusion.
10. The safety device for the gas stove according to item 1. The temperature-sensitive column includes a base column and concentrically provided inner and outer rings on the base column.
The one according to any one of claims 5 to 13, wherein the inner sleeve is extrapolated to the inner ring of the temperature sensitive column, and the outer sleeve is extrapolated to the outer ring of the temperature sensitive column. Gas stove safety device. The one according to any one of claims 5 to 14, wherein one end of the elastic component that comes into contact with the temperature-sensitive column is installed between the inner ring and the outer ring of the temperature-sensitive column. Gas stove safety device. The safety device for a gas stove according to any one of claims 1 to 15, wherein the elastic component is a spring. A gas stove that uses the safety device for the gas stove according to any one of claims 1 to 16.

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