CN201373497Y - Safe electric heating box - Google Patents
Safe electric heating box Download PDFInfo
- Publication number
- CN201373497Y CN201373497Y CN200920126740U CN200920126740U CN201373497Y CN 201373497 Y CN201373497 Y CN 201373497Y CN 200920126740 U CN200920126740 U CN 200920126740U CN 200920126740 U CN200920126740 U CN 200920126740U CN 201373497 Y CN201373497 Y CN 201373497Y
- Authority
- CN
- China
- Prior art keywords
- metal contact
- box
- pin grid
- electric heating
- compression spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a heating device, in particular to an electric heating box employing an electric heating tube as a heating element. The electric fire box comprises a box body, the electric heating tube, a bearing pin grid and a control circuit. Further, a compression spring is vertically mounted at the bottom of the box body, the bearing pin grid is supported on the compression spring, a first metal contact is fixed onto the lower surface of the bearing pin grid, a limit post is fixed onto the bottom of the box body, a second metal contact is disposed at the upper end of the limit post, and the second metal contact vertically corresponds to the first metal contact. When the compression spring is in a free state, the two contacts are in an isolated state and connected in the control circuit of the electric heating box to control on-off states of the electric heating tube. When the electric fire box is used the electric heating tube can not be electrified and radiate heat no matter what state an adjustable switch is in when people leave the electric fire box, thereby avoiding safety accidents caused by the factor that users forget to turn off the adjustable switch.
Description
Technical field
The utility model relates to a kind of heating installation, and is particularly a kind of with the electric fire-box of electrothermal tube as heater element.
Background technology
The electricity fire-box also claims Electric fire drum, it is the device that people were used to warm oneself in winter, by casing, be installed in the electrothermal tube in the casing and the pin grid that holds that is installed on the casing is formed, casing and hold the pin grid and make wherein by timber, in casing, be provided with electric fire-box control circuit, has a rearrangeable switch in this circuit, with the break-make of control electrothermal tube and the caloric value of regulating electrothermal tube.The pin grid that holds of existing electric fire-box is to be fixed on the casing, combines as a whole with casing, and electrothermal tube is installed in the casing and is positioned at and holds transferring of pin grid.When making the electricity consumption fire-box, rearrangeable switch is opened, the people is placed on after under the state that is seated both feet being taken off one's shoes and holds on the pin grid, and with lid by both legs, pin and electric fire-box are covered, can get warm by the fire, when not needing to make the electricity consumption fire-box, rearrangeable switch closed get final product.But in the process that reality is used, when people leave electric fire-box, often carelessness and forget and turn off rearrangeable switch easily, because lid is placed on the electric fire-box always, the time one is long, lid will and be burnt by the roasting heat of electrothermal tube, thereby cause security incident.
The utility model content
The purpose of this utility model provides the electric fire-box of a kind of safety, to avoid turning off the security incident that rearrangeable switch causes owing to forgetting.
The electric fire-box of safety described in the utility model, comprise casing, be installed in the electrothermal tube in the casing, be installed in and hold the pin grid on the casing, and electric fire-box control circuit, be vertically installed with the compression spring at bottom half, holding the pin grid is bearing on the compression spring, can move axially along the compression spring with respect to casing, the lower surface that holds the pin grid is fixed with first metal contact, be fixed with limited post at bottom half, the limited post upper end is provided with second metal contact, second metal contact is vertical corresponding with first metal contact, when the compression spring is in free state, two metal contact are in released state, and two metal contact are connected in the electric fire-box control circuit, the break-make of control electrothermal tube.
During use, rearrangeable switch is opened, this moment is because two metal contact are in released state, so electrothermal tube heating power not, the people is placed on after under the state that is seated both feet being taken off one's shoes and holds on the pin grid, hold the pin grid under the jamming on of pin, overcome the compression spring force move down with respect to electric fire-box casing, directly cause two metal contact contacts, till holding the pin grid and being bearing on the limited post, electrothermal tube energising beginning heating this moment, with lid both legs, pin are covered again, can be got warm by the fire.When the people leaves electric fire-box and forgets when closing rearrangeable switch, hold the pin grid return that under the compression spring action, moves up, two metal contact are separated, though do not close rearrangeable switch this moment, electrothermal tube still dead electricity extinguishes.
The utility model is owing to have this kind structure, the work of electricity fire-box is subjected to the control of rearrangeable switch and two metal contact simultaneously, and two metal contact hold the pin grid be not subjected to pin jam on power the time be in released state, so when the people leaves electric fire-box, no matter which kind of state rearrangeable switch is in, electrothermal tube all can heating power, thereby has avoided turning off the security incident that rearrangeable switch causes owing to forgetting.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is described in further detail.
Fig. 1 looks generalized section for the master of the electric fire-box of safety described in the utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the control circuit schematic diagram of this electricity fire-box.
The specific embodiment
As Fig. 1 and, Fig. 2 and shown in Figure 3, the electric fire-box of this safety comprises casing 1, be installed in the electrothermal tube 4 in the casing 1, be installed in and hold pin grid 2 on the casing 1, and electric fire-box control circuit, in casing 1 bottom vertical six compression springs 5 are installed, holding pin grid 2 is bearing on the compression spring 5, can move axially along compression spring 5 with respect to casing 1, the lower surface center position that holds pin grid 2 is fixed with first metal contact 7, be fixed with limited post 6 in casing 1 bottom, limited post 6 upper ends are provided with second metal contact 3, second metal contact 3 is vertical corresponding with first metal contact 7, when compression spring 5 is in free state, two metal contact 3,7 are in released state, two metal contact 3,7 are connected in the electric fire-box control circuit, as the gauge tap K1 in the control circuit, K2 connects with rearrangeable switch, controls the break-make of electrothermal tube together.
Claims (2)
1, the electric fire-box of a kind of safety, comprise casing (1), be installed in the electrothermal tube (4) in the casing, be installed in and hold pin grid (2) on the casing, and electric fire-box control circuit, it is characterized in that: be vertically installed with compression spring (5) at bottom half, holding the pin grid is bearing on the compression spring, can move axially along the compression spring with respect to casing, the lower surface that holds the pin grid is fixed with first metal contact (7), be fixed with limited post (6) at bottom half, the limited post upper end is provided with second metal contact (3), second metal contact is vertical corresponding with first metal contact, when the compression spring is in free state, two metal contact are in released state, and two metal contact are connected in the electric fire-box control circuit, the break-make of control electrothermal tube.
2, according to the electric fire-box of the described safety of claim 1, it is characterized in that: first metal contact (7) is positioned at the center of holding pin grid (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920126740U CN201373497Y (en) | 2009-03-23 | 2009-03-23 | Safe electric heating box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920126740U CN201373497Y (en) | 2009-03-23 | 2009-03-23 | Safe electric heating box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373497Y true CN201373497Y (en) | 2009-12-30 |
Family
ID=41499583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920126740U Expired - Fee Related CN201373497Y (en) | 2009-03-23 | 2009-03-23 | Safe electric heating box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373497Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628598A (en) * | 2012-04-20 | 2012-08-08 | 张宗贤 | Safe electric baking furnace |
-
2009
- 2009-03-23 CN CN200920126740U patent/CN201373497Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628598A (en) * | 2012-04-20 | 2012-08-08 | 张宗贤 | Safe electric baking furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20110323 |