CN110906420B

CN110906420B - Safety electric furnace cover

Info

Publication number: CN110906420B
Application number: CN201911193665.8A
Authority: CN
Inventors: 罗文飞
Original assignee: Zhejiang Jx Industry & Trade Co ltd
Current assignee: ZHEJIANG JX INDUSTRY & TRADE Co.,Ltd.
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2021-08-13
Anticipated expiration: 2039-11-28
Also published as: CN110906420A

Abstract

The invention relates to the technical field of warm keeping articles, in particular to a safe electric furnace cover which comprises surrounding pieces, wherein the top of the joint of each surrounding piece is provided with a blocking piece, the bottom of each surrounding piece is provided with at least two skirt pieces, an overlapping area is arranged between the skirt pieces, the edges of the skirt pieces are sewed with elastic belts, two ends of each elastic belt penetrate out of the joint of the skirt pieces and the surrounding pieces, and two ends of each elastic belt are provided with lock catches; still include safety device, safety device includes the controller and all is connected with temperature sensor, smoke transducer and the power supply control device of controller electricity, and temperature sensor sets up on each skirt piece, and smoke transducer sets up on the surrounding piece, and power supply control device is including conversion socket and relay, and the conversion socket is used for the electric stove power supply, and the relay is used for controlling the power supply of conversion socket. The safe electric furnace cover provided by the invention can solve the problems that the skirt of the existing electric furnace cover is easy to sag and pile up on the ground and has potential safety hazards.

Description

Safety electric furnace cover

Technical Field

The invention relates to the technical field of warm-keeping articles, in particular to a safety electric furnace cover.

Background

The electric furnace cover, also called as a heating cover or a heating quilt, is used for reducing heat dissipation when the electric furnace is used for heating, and is usually covered on a heating table when in use, and the surrounding skirts surround the heating furnace under the table, so that the heat preservation effect can be achieved, and the electric furnace cover is particularly suitable for the south without central heating.

As a new product, the electric furnace cover is not mature, the length of the skirt pendulum of the electric furnace cover is very critical, the length of the skirt pendulum is matched with the height of a table, the skirt pendulum is too long, the electric furnace cover is not easy to raise and fall, the problem that the electric furnace cover is easy to sag and pile on the ground is solved, and the skirt pendulum is too short, so that a gap is easy to generate and the heat preservation effect is difficult to achieve. On the other hand, the electric furnace cover is made of cloth or cotton, when the electric furnace is heated, if the electric furnace is too close to the electric furnace or the electric furnace breaks down, the electric furnace cover is easy to catch fire to cause fire, the existing electric furnace cover does not have a safety detection function, and potential safety hazards exist.

Disclosure of Invention

The invention provides a safe electric furnace cover which can solve the problems that the skirt of the existing electric furnace cover is easy to sag and pile up on the ground and has potential safety hazards.

In order to solve the technical problem, the present application provides the following technical solutions:

the safety electric furnace cover comprises a top cover, wherein the top cover comprises surrounding pieces which are connected end to end, blocking pieces are arranged at the tops of the joints of the surrounding pieces, at least two skirt pieces are arranged at the bottom of each surrounding piece, an overlapping area is arranged between the skirt pieces, an elastic belt is sewn at the edge of each skirt piece, two ends of the elastic belt penetrate out of the joints of the skirt pieces and the surrounding pieces, and lock catches are arranged at two ends of the elastic belt; still include safety device, safety device includes the controller and all is connected with temperature sensor, smoke transducer and the power supply controlling means that the controller electricity is connected, temperature sensor sets up on each skirt piece, smoke transducer sets up on the surrounding piece, power supply controlling means includes conversion socket and relay, the conversion socket is used for the electric stove power supply, the relay is used for controlling the power supply of conversion socket, the controller is used for the switching according to temperature sensor and smoke transducer's signal control relay.

According to the technical scheme, the elastic belt is arranged at the edge of the skirt piece, the skirt piece is kept in a tight state by utilizing the elasticity of the elastic belt, the problem that the skirt piece is too long and sags and is accumulated on the ground is avoided, meanwhile, the tightening degree of the elastic belt can be adjusted by adjusting the lock catches at the two ends of the elastic belt, and further, the length of the skirt piece can be adjusted, so that the table with different heights can be adapted.

According to the technical scheme, the safety protection device is arranged, the temperature of each skirt piece is detected through the temperature sensor, whether the objects are burnt is detected through the smoke sensor, so that safety problems are found in time, the electric furnace is powered through the switching socket, power supply control over the electric furnace is achieved, power supply can be turned off at the first time when the problems are detected, and safety accidents are avoided.

Further, safety device still includes alarm module, alarm module includes warning light and bee calling organ, warning light and bee calling organ all are connected with the controller electricity, the controller is used for controlling the switching of warning light and bee calling organ according to temperature sensor and smoke transducer's signal.

And the alarm module can remind the user of paying attention to the safety problem in time.

Further, the skirt piece includes inlayer skirt piece and outer skirt piece, inlayer skirt piece and outer skirt piece staggered arrangement.

Through crisscross setting, improve the leakproofness, and then improve the heat preservation effect of furnace mantle.

Further, be equipped with the fixed plate on the surrounding sheet, the fixed plate is connected with bimetallic strip, bimetallic strip is located the junction of surrounding sheet and skirt piece, bimetallic strip is used for pushing the skirt piece to the outside after being heated.

Set up the bimetallic strip and can outwards promote a section distance with the skirt piece according to the height of temperature in skirt piece and surrounding piece junction, in the in-service use process of stove cover, the electric stove has not been put to the position in the middle under the desktop at some times, or the electric stove has taken place the slope or has emptyd, the skirt piece that is close to the electric stove this moment is heated the biggest, this also is the condition that the conflagration danger takes place most easily, under this condition, utilize the bimetallic strip, let the automatic outward movement certain distance of skirt piece that is close to the electric stove, and then keep the distance with the electric stove, can effectual reduction potential safety hazard.

Further, when the controller detects that the extreme difference of the temperature of each skirt piece is greater than a preset difference value or the temperature of the skirt piece is greater than a preset temperature value, the controller controls the alarm module to give an alarm.

The controller can judge whether the electric stove is placed at the intermediate position or not through detecting the range of each skirt piece temperature roughly, when detecting that the range of each skirt piece temperature is great, then explain that there is the electric stove probably to place inclined to one side, the electric stove has taken place displacement or slope etc. and then in time carries out the police dispatch newspaper to make things convenient for the user in time to discover the potential safety hazard.

Further, the conversion socket comprises a plug and a socket, a temperature control switch is connected between the plug and the socket through a wire, the temperature control switch is used for disconnecting the plug from the socket after receiving high temperature, and the relay is arranged on a connecting wire of the temperature control switch and the socket. The socket and the plug are automatically disconnected after high temperature is detected through the temperature control switch, and then the electric furnace can still be ensured to be powered off when the controller fails.

Furthermore, the temperature control switch comprises a shell and a sliding block, wherein the shell is provided with a mounting hole, the bottom of the mounting hole is provided with a conductive column, one end of the sliding block extends into the mounting hole and is in sliding connection with the side wall of the mounting hole, the end face of the sliding block facing the conductive column is provided with a jack matched with the conductive column, and a conductive sheet is arranged in the jack; the slider stretches into and is equipped with the locked groove on the one end lateral wall of mounting hole, be equipped with the locating piece on the other end lateral wall of slider, the one end that the mounting hole was stretched out to the slider has cup jointed first spring, be equipped with on the mounting hole lateral wall with locked groove assorted lockhole, be equipped with the installation cavity with the lockhole intercommunication in the casing, be equipped with locking mechanical system in the installation cavity, locking mechanical system includes backup pad and clamp plate, the backup pad is fixed to be set up on the lateral wall of installation cavity, the clamp plate middle part articulates in the backup pad, clamp plate one end is equipped with towards one side of mounting hole and puts and big or small assorted spring bolt with the lockhole, the clamp plate still is equipped with the second spring towards one side of mounting hole, one side that the mounting hole was kept away from to the clamp plate other.

The slider keeps the conducting strip to be connected with leading electrical pillar under the locking of spring bolt, and the user can be through the manual disconnection of briquetting, and when the conflagration danger that takes place, the expansion piece is heated the inflation, extrudees the clamp plate, and the clamp plate makes the spring bolt follow roll-off in the locked groove, and then unblock slider, and the slider pops out under the effect of first spring, breaks off the connection of conducting strip and electrically conductive post, realizes high temperature auto-power-off.

Furthermore, a plurality of inflatable grids are arranged on the skirt piece, the inflatable grids are communicated with each other, and an inflation inlet is formed in the skirt piece.

Through aerifing the check, on the one hand can utilize gas to increase self heat preservation effect, and on the other hand aerifys the check and is heated the inflation, can support the user tightly, fills the gap that produces because user's leg stretches into in the furnace mantle for the leakproofness of furnace mantle is better, further improves the heat preservation effect.

Further, a flame-retardant cotton layer is arranged in the skirt piece. The flame-retardant cotton layer can avoid open fire combustion and reduce the possibility of fire.

Furthermore, the bottom of the skirt piece positioned in the overlapping area is provided with a balancing weight, a magnet and a magic tape. Utilize the balancing weight can be so that the skirt piece keeps vertical state, and magnet can take place to adsorb with balancing weight and other magnet simultaneously, and then the bottom of automatic closed skirt piece avoids ventilating, pastes the skirt piece that also can let user manual adjustment shank below through the magic, reduces the gap between the skirt piece.

Drawings

FIG. 1 is an isometric view of a safety electric furnace enclosure according to the present invention;

FIG. 2 is a partial cross-sectional view of a temperature controlled switch in an embodiment of a safety electric furnace enclosure of the present invention;

FIG. 3 is a logic block diagram of a safety protection device in an embodiment of a safety electric furnace cover of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

the reference numbers in the drawings of the specification include: the device comprises a surrounding sheet 1, a blocking sheet 2, a cover sheet 3, a bimetallic strip 4, an outer-layer skirt sheet 5, a smoke sensor 6, an inner-layer skirt sheet 7, a shell 9, a sliding block 10, a positioning block 11, a first spring 12, a second spring 13, a supporting plate 14, a pressing plate 15, a bolt 16, an expansion block 17, a pressing block 18, a conductive column 19, a conductive sheet 20 and a locking groove 21.

Example one

As shown in fig. 1, the safe electric furnace stove cover of this embodiment, including the top hood, the top hood includes end to end's the piece 1 that encloses, the top of each piece 1 junction that encloses is equipped with separation blade 2, the top hood still includes a cover plate 3, cover plate 3 and enclose between the piece 1 through the zip fastener connection, in this embodiment, take a square desk as an example, it is corresponding, the cover plate 3 of this embodiment is a square, four piece 1 that enclose are connected through the zip fastener on its four sides, cover plate 3 direct mount is on the desktop of desk, four enclose piece 1 and enclose the desk, and then install the stove cover on the desk. In this embodiment, triangular blocking pieces 2 are arranged at the top of the connection part of the surrounding piece 1, namely at the positions of four corners of the cover piece 3, and are used for blocking the four corners of the table after the cover piece 3 is taken down, so as to realize the installation of the furnace cover.

Every 1 bottom of surrounding piece is equipped with two at least skirt pieces, and in this embodiment, the skirt piece includes inlayer skirt piece 7 and outer skirt piece 5, and inlayer skirt piece 7 and outer skirt piece 5 are crisscross to be set up, and inlayer skirt piece 7 has one, and outer skirt piece 5 has two, and inlayer skirt piece 7 is located between two outer skirt pieces 5. Overlapping areas are arranged between the outer-layer skirt pieces and the inner-layer skirt pieces. The bottom of the skirt piece positioned in the overlapping area is provided with a balancing weight, a magnet and a magic tape. Utilize the balancing weight can be so that the skirt piece keeps vertical state, and magnet can take place to adsorb with balancing weight and other magnet simultaneously, and then the bottom of automatic closed skirt piece avoids ventilating, pastes the skirt piece that also can let user manual adjustment shank below through the magic, reduces the gap between the skirt piece. In this embodiment, the cover plate 3, the surrounding sheet 1, the blocking sheet 2 and the skirt sheet are all made of multilayer materials, and the multilayer materials sequentially comprise a fabric layer, a flame-retardant cotton layer and a pure cotton layer from outside to inside. In this embodiment, a fixed plate has been sewed up towards one side of desk to surrounding sheet 1, and bimetallic strip 4 is installed through the bolt to the fixed plate, and bimetallic strip 4 is located the junction of surrounding sheet 1 and inlayer skirt piece, and the metal that coefficient of expansion is high in bimetallic strip 4 is close to the desktop, and the metal that coefficient of expansion is low is close to the skirt piece, and bimetallic strip 4 is used for promoting inlayer skirt piece outside after being heated.

The elastic band is all sewed up at the edge of inlayer skirt piece and outer skirt piece, and the elastic band both ends are worn out from skirt piece and the junction of enclosing piece 1, and the elastic band both ends are equipped with the hasp, and in this embodiment, the elastic band is preferred the elastic cord, and the hasp adopts anti-skidding to detain.

The safety protection device comprises a controller, and temperature sensors, smoke sensors 6 and a power supply control device which are electrically connected with the controller, wherein the temperature sensors are arranged on the skirts, in the embodiment, the controller is preferably an STM32H7 series single chip microcomputer, the temperature sensors are DS18B20 digital temperature sensors, and the top, the bottom and the middle of each skirt are respectively provided with two temperature sensors; the smoke sensor 6 is arranged on the surrounding sheet 1, the smoke sensor 6 adopts an GQQ5 smoke sensor, the power supply control device comprises a conversion socket and a relay, the conversion socket is used for supplying power for the electric furnace, the relay is used for controlling the power supply of the conversion socket, and the controller is used for controlling the on-off of the relay according to signals of the temperature sensor and the smoke sensor 6. The safety protection device further comprises an alarm module, the alarm module comprises a warning lamp and a buzzer, the warning lamp and the buzzer are electrically connected with the controller, and the controller is used for controlling the warning lamp and the buzzer to be opened and closed according to signals of the temperature sensor and the smoke sensor 6. In this embodiment, the controller can acquire the data of temperature sensor once every 5 seconds, then calculates the range of these data, and when the controller detects that the range of each skirt piece temperature is greater than the preset difference or the skirt piece temperature is greater than the preset temperature value, control alarm module and send out the police dispatch newspaper.

The conversion socket comprises a plug and a socket, a temperature control switch is connected between the plug and the socket through a wire, the temperature control switch is used for disconnecting the connection between the plug and the socket after receiving high temperature, and the relay is arranged on a connecting wire of the temperature control switch and the socket. As shown in fig. 2, the temperature controlled switch includes a housing 9 and a slider 10, the housing 9 is provided with a mounting hole, the bottom of the mounting hole is provided with a conductive post 19, one end of the slider 10 extends into the mounting hole and is slidably connected with the side wall of the mounting hole, the end surface of the slider 10 facing the conductive post 19 is provided with a jack matched with the conductive post 19, and a conductive plate 20 is arranged in the jack; one side of one end of the sliding block 10 extending into the mounting hole is provided with a locking groove 21, the other end of the sliding block 10 is fixedly connected with a positioning block 11 extending outwards through threads, one end of the sliding block 10 extending out of the mounting hole is sleeved with a first spring 12, one end of the first spring 12 abuts against the shell 9, the other end of the first spring abuts against the positioning block 11, the side wall of the mounting hole is provided with a locking hole matched with the position of the locking groove 21, a mounting cavity communicated with the locking hole is arranged in the shell 9, a locking mechanism is arranged in the mounting cavity and comprises a supporting plate 14 and a pressing plate 15, the supporting plate 14 is bonded on the side wall of the mounting cavity, the middle part of the pressing plate 15 is hinged on the supporting plate 14, one end of the pressing plate 15 facing towards the mounting hole is bonded with a locking bolt 16 matched with the position and the size of the locking hole, one side of the pressing plate 15 facing towards the mounting hole is also provided with a second spring 13, one side of the other end of the pressing plate 15 far away from the mounting hole is provided with a pressing block 18 and an expansion block 17, the expansion block 17 can be expanded by heat. In this embodiment, the expansion block 17 is made of zinc.

Example two

The difference between the embodiment and the first embodiment is that in the embodiment, a waterproof layer is further arranged between the fabric layer and the flame-retardant cotton layer of the multilayer material, the waterproof layer is made of rubber, the waterproof layer is hollow to form a plurality of inflatable lattices, the inflatable lattices are communicated with one another, the skirt piece is provided with an inflation port communicated with the inflatable lattices, and carbon dioxide gas is filled in each inflatable lattice in advance.

Through the waterproof layer, on the one hand can be waterproof, and then avoid splashing on the furnace mantle and wet inside cotton layer at the in-process tea water that uses etc. on the other hand waterproof layer constitution a plurality of check of aerifing, can utilize gas to increase self heat preservation effect to aerify the check and be heated the inflation, can support the user tightly, fill because the user leg stretches into the furnace mantle in and the gap that produces, make the leakproofness of furnace mantle better, further improve the heat preservation effect.

The above are merely examples of the present invention, and the present invention is not limited to the field related to this embodiment, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art can know all the common technical knowledge in the technical field before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the scheme, and some typical known structures or known methods should not become barriers to the implementation of the present invention by those skilled in the art in light of the teaching provided in the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Safe type electric furnace stove cover, including the overhead guard, the overhead guard includes end to end's the piece that encloses, and the top of each piece junction that encloses is equipped with separation blade, its characterized in that: the bottom of each surrounding piece is provided with at least two skirt pieces, an overlapping area is arranged between the skirt pieces, the edge of each skirt piece is sewed with an elastic belt, two ends of each elastic belt penetrate out of the connecting part of each skirt piece and the corresponding surrounding piece, and two ends of each elastic belt are provided with lock catches;

the electric furnace protection device comprises a controller, temperature sensors, smoke sensors and a power supply control device, wherein the temperature sensors, the smoke sensors and the power supply control device are all electrically connected with the controller;

the apron piece is characterized in that a fixing plate is arranged on the apron piece, the fixing plate is connected with a bimetallic strip, the bimetallic strip is located at the joint of the apron piece and the apron piece, and the bimetallic strip is used for pushing the apron piece to the outer side after being heated.

2. The safety electric furnace cover according to claim 1, characterized in that: safety device still includes alarm module, alarm module includes warning light and bee calling organ, warning light and bee calling organ all are connected with the controller electricity, the controller is used for controlling the switching of warning light and bee calling organ according to temperature sensor and smoke transducer's signal.

3. The safety electric furnace cover according to claim 1, characterized in that: the skirt piece includes inlayer skirt piece and outer skirt piece, inlayer skirt piece and outer skirt piece staggered arrangement.

4. The safety electric furnace hood according to claim 2, characterized in that: when the controller detects that the extreme difference of the temperature of each skirt piece is greater than a preset difference value or the temperature of the skirt piece is greater than a preset temperature value, the controller controls the alarm module to give an alarm.

5. The safety electric furnace cover according to claim 1, characterized in that: the conversion socket comprises a plug and a socket, a temperature control switch is connected between the plug and the socket through a wire, the temperature control switch is used for disconnecting the plug and the socket after receiving high temperature, and the relay is arranged on a connecting wire of the temperature control switch and the socket.

6. The safety electric furnace cover according to claim 5, characterized in that: the temperature control switch comprises a shell and a sliding block, wherein a mounting hole is formed in the shell, a conductive column is arranged at the bottom of the mounting hole, one end of the sliding block extends into the mounting hole and is in sliding connection with the side wall of the mounting hole, an insertion hole matched with the conductive column is formed in the end face, facing the conductive column, of the sliding block, and a conductive sheet is arranged in the insertion hole; the slider stretches into and is equipped with the locked groove on the one end lateral wall of mounting hole, be equipped with the locating piece on the other end lateral wall of slider, the one end that the mounting hole was stretched out to the slider has cup jointed first spring, be equipped with on the mounting hole lateral wall with locked groove assorted lockhole, be equipped with the installation cavity with the lockhole intercommunication in the casing, be equipped with locking mechanical system in the installation cavity, locking mechanical system includes backup pad and clamp plate, the backup pad is fixed to be set up on the lateral wall of installation cavity, the clamp plate middle part articulates in the backup pad, clamp plate one end is equipped with towards one side of mounting hole and puts and big or small assorted spring bolt with the lockhole, the clamp plate still is equipped with the second spring towards one side of mounting hole, one side that the mounting hole was kept away from to the clamp plate other end is equipped with briquetting and inflation piece, the inflation piece can be heated expansion.

7. The safety electric furnace cover according to claim 1, characterized in that: the skirt piece is provided with a plurality of inflatable lattices which are communicated with each other, and the skirt piece is provided with an inflation inlet.

8. The safety electric furnace cover according to claim 1, characterized in that: and a flame-retardant cotton layer is arranged in the skirt piece.

9. The safety electric furnace cover according to claim 1, characterized in that: the bottom of the skirt piece positioned in the overlapping area is provided with a balancing weight, a magnet and a magic tape.