TWO-PIECE WARMING OVEN
A two-piece warming oven includes a base, a heat-conducting unit, and a heating unit for heating the conducting member. The base includes a supporting plate, and a plurality of spaced-apart upright supporting rods disposed around the supporting plate and having lower end portions connected fixedly to an outer periphery of the supporting plate to define an accommodating space above the supporting plate and among the supporting rods. The heat-conducting unit is connected removably to the base, and is convertible between a used position, where the heat-conducting unit is disposed above the accommodating space, and a storage position, where the heat-conducting unit is inverted and extends into the accommodating space.
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This application claims priority of Taiwanese Application No. 100224151, filed on Dec. 21, 2011.
BACKGROUND OF THE INVENTION1. Field of the Invention
This invention relates to a warming oven, and more particularly to a two-piece warming oven including two pieces, one of which is invertible to reduce the total volume and length of the warming oven for storage and transportation.
2. Description of the Related Art
In a warming oven disclosed in Chinese Patent Application No. 200730048740.3, heat is generated by a heating unit disposed within a base, and is transmitted upwardly through a heat-conducting tube for increasing the surrounding temperature. During generation of the heat, a fire flame occurs in the heat-conducting tube to have a better decorating effect. To comply with safety regulation, such a warming oven must have a height of at least two meters, thereby resulting in inconvenience during storage and transportation of the warming oven.
SUMMARY OF THE INVENTIONThe object of this invention is to provide a warming oven that is convenient to store and transport.
According to this invention, a two-piece warming oven includes a base, a heat-conducting unit, and a heating unit for heating the conducting member. The base includes a supporting plate, and a plurality of spaced-apart upright supporting rods disposed around the supporting plate and having lower end portions connected fixedly to an outer periphery of the supporting plate to define an accommodating space above the supporting plate and among the supporting rods. The heat-conducting unit is connected removably to the base, and is convertible between a used position, where the heat-conducting unit is disposed above the accommodating space, and a storage position, where the heat-conducting unit is inverted and extends into the accommodating space.
An assembly of the base and the heating unit acts as one of the two pieces, and the heat-conducting unit acts as the other of the two pieces. When the heat-conducting unit is disposed at the storage position, since a major portion thereof extends into the accommodating space to reduce significantly the total volume and length of the warming oven, the warming oven is convenient to store and transport.
These and other features and advantages of this invention will become apparent in the following detailed description of a preferred embodiment of this invention, with reference to the accompanying drawings, in which:
Referring to
With further reference to
The heat-conducting unit 3 includes: a positioning plate 31 defining a top end of the accommodating space 27 and having a first aperture 311; a top plate 32 spaced apart from and disposed above the positioning plate 31 and having a second aperture 321; a conducting member 33 configured as an upright quartz glass tube, connected between the positioning plate 31 and the top plate 32, and in fluid communication with the first and second apertures 311, 321; a plurality of upright connecting rods 34 disposed around the conducting member 33, connected fixedly to outer peripheries of the positioning pate 31 and the top plate 32, locked respectively and removably on the supporting rods 22 by a plurality of first lock bolts 6 (see
With further reference to
In this embodiment, the roller unit 5 is attached to a side of the supporting plate 21.
The heat-conducting unit 3 is convertible between a used position shown in
When use of the two-piece warming oven 1 is intended, the height adjustable supports 26 are first adjusted so as to allow the two-piece warming oven 1 stand stably. Next, the heater 41 is operated so that a fire flame is produced in the quartz glass tube 33 and goes upwardly out of the quartz glass tube 33 through the second aperture 321. Hence, the quartz glass tube 33 is heated so that the surrounding temperature arises. During heating, the fireproof net 36 and the windproof shield 37 disposed above the quartz glass tube 33 cooperate to prevent the fire flame to go out laterally, and the vent holes 371 in the windproof shield 37 permit supplementation of fresh air into the quartz glass tube 33 therethrough to prevent incomplete combustion due to lack of oxygen gas.
When a reduction in the total volume or total length of the two-piece warming oven 1 is desired, e.g., for a manufacturer to transport the two-piece warming oven 1 to a distributor, the first lock bolts 6 are first removed so that the heat-conducting unit 3 can be removed from the base 2. Next, the fuel source 40, the position-limiting member 42, the top cover 38, the windproof shield 37, the fireproof net 36, and the second lock bolts 7 are removed. Subsequently, the heat-conducting unit 3 can be inverted and inserted into the accommodating space 27 until the intermediate portions of the connecting rods 34 come into contact with the top ends of the supporting rods 22, so that the heat-conducting unit 3 is disposed at the storage position. At the storage position, the two-piece warming oven 1 can also be changed to a wheeled device for convenience of transportation. During such a transportation, since the zigzag structure of the connecting rods 34 and the supporting rods 22, the connecting rods 34 can be supported stably by the supporting rods 22.
It should be noted that, the number and shape of each of the connecting rods 34 and the supporting rods 22 can be changed according to actual needs.
As such, since the base 2 is connected removably to the heat-conducting unit 3, the two-piece warming oven 1 is convenient to store and transport. Thus, the object of this invention is achieved. Furthermore, the fuel source 40 is supported stably by the position-limiting member 42. Further, since the windproof shield 37 can be positioned by the zigzag retaining plates 30, no positioning means is required to maintain the position of the windproof shield 37 relative to the top plate 32.
With this invention thus explained, it is apparent that numerous modifications and variations can be made without departing from the scope and spirit of this invention. It is therefore intended that this invention be limited only as indicated by the appended claims.
Claims
1. A two-piece warming oven comprising:
- a base including a supporting plate having a top surface, and a plurality of spaced-apart upright supporting rods disposed around said supporting plate and having lower end portions connected fixedly to an outer periphery of said supporting plate to define an accommodating space above said supporting plate and among said supporting rods;
- a heat-conducting unit connected removably to said base and convertible between a used position, where said heat-conducting unit is disposed above said accommodating space, and a storage position, where said heat-conducting unit is inverted and extends into said accommodating space, said heat-conducting unit including a conducting member; and
- a heating unit disposed on said base for heating said conducting member when said heat-conducting unit is at said used position;
- wherein, when said heat-conducting unit is at said storage position, at least one portion of said heat-conducting unit is removed from the remaining portion of said heat-conducting unit, and at least one portion of said heating unit is removed from said base.
2. The two-piece warming oven as claimed in claim 1, wherein said heat-conducting unit further includes a positioning plate that defines a top end of said accommodating space in said base, a top plate disposed above said positioning plate, and a plurality of connecting rods that are disposed around said conducting member, that are connected fixedly to outer peripheries of said positioning plate and said top plate, and that are locked respectively and removably on said supporting rods of said base, said conducting member being configured as an upright quartz glass tube connected between said positioning plate and said top plate.
3. The two-piece warming oven as claimed in claim 1, wherein each of said supporting rods of said base and said connecting rods of said heat-conducting unit has an L-shaped cross-section, such that top end surfaces of said supporting rods abut against bottom end surfaces of said connecting rods when said heat-conducting unit is at said used position, and such that intermediate portions of said supporting rods abut respectively against top ends of said supporting rods, said base further including a plurality of first coupling members connected respectively and fixedly to said supporting rods, each of said first coupling members being formed with a plurality of threaded holes, said heat-conducting unit further including a plurality of second coupling members connected respectively and fixedly to said connecting rods, each of said second coupling members having a plurality of through holes that are formed therethrough and that are disposed below a corresponding one of said connecting rods, said two-piece warming oven further comprising a plurality of lock bolts extending respectively through said through holes in said second coupling members and engaging respectively said threaded holes in said first coupling members, so that said connecting rods are locked respectively and removably on said supporting rods.
4. The two-piece warming oven as claimed in claim 2, wherein said heating unit includes a fuel source placed on said top surface of said supporting plate, a heater that is heated by said fuel source and that is attached to and disposed under said positioning plate, and a position-limiting member hooked removably on two adjacent ones of said supporting rods for positioning said fuel source within said accommodating space in said base, said fuel source and said position-limiting member constituting two said portions of said heating unit.
5. The two-piece warming oven as claimed in claim 4, wherein said base further includes two engaging rings disposed respectively and fixedly on said two adjacent ones of said supporting rods, said position-limiting member having two L-shaped ends inserted respectively into said engaging rings.
6. The two-piece warming oven as claimed in claim 5, wherein said fuel source is configured as a gas barrel, and said position-limiting member further has a curved intermediate section for contact with said gas barrel.
7. The two-piece warming oven as claimed in claim 4, wherein said positioning plate has a first aperture, and said top plate has a second aperture, said heater being aligned with said first aperture, said quartz glass tube being in fluid communication with said first and second apertures.
8. The two-piece warming oven as claimed in claim 7, wherein said heat-conducting unit further includes a fireproof net disposed fixedly on and above said top plate and around said second aperture, a windproof shield disposed fixedly on and above said top plate, surrounding said fireproof net, and having a plurality of vent holes; and a top cover disposed fixedly on and above said fireproof net, said fireproof net, said windproof shield, and said top cover constituting three said portions of said heat-conducting unit.
9. The two-piece warming oven as claimed in claim 8, wherein said heat-conducting unit further includes a plurality of zigzag retaining plates located around said windproof shield and disposed respectively and fixedly on and extending upwardly from top ends of said connecting rods, and said windproof shield has a plurality of zigzag plate portions abutting respectively against said zigzag retaining plates, so as to prevent movement of said windproof shield relative to said zigzag retaining plates.
10. The two-piece warming oven as claimed in claim 2, wherein said supporting plate is polygonal, and said two-piece warming oven further comprising a roller unit disposed on a side of said supporting plate.
11. The two-piece warming oven as claimed in claim 2, wherein said heat-conducting unit further includes a plurality of net plates each connected fixedly between two adjacent ones of said connecting rods.
12. The two-piece warming oven as claimed in claim 1, wherein said base further includes a plurality of stop plates each connected between two adjacent ones of said supporting rods for confining said fuel source within said accommodating space.
13. The two-piece warming oven as claimed in claim 1, wherein said base further includes a plurality of height-adjustable supports connected to and disposed under bottom ends of said supporting rods, respectively.
Type: Application
Filed: May 10, 2012
Publication Date: Jun 27, 2013
Applicant: ALLGREEN DESIGNS CO., LTD. (Kaohsiung City)
Inventor: Wen-Chang YEN (Kaohsiung City)
Application Number: 13/468,267
International Classification: F24C 1/16 (20060101); F24C 15/16 (20060101); F24C 3/14 (20060101);