AU2015100727A4 - Cookware for making youtiao - Google Patents

Abstract

Cookware for Making Youtiao Abstract The invention relates to a cookware for making youtiao. The cookware comprises a receiving area with wide top and narrow bottom; a main heating area arranged longitudinally, an auxiliary heating area arranged to the both sides of the main heating area; an 5 air inlet communicated with the outside being arranged longitudinally; a first air channel communicated with the air inlet being arranged transversely; both the first confluence cavity communicated with the first air channel, and the second air channel communicated with the first confluence cavity being arranged between the wok support and 10 the handle; a second confluence cavity communicated with the second air channel being arranged between the cover, the handle and the wok support; an air outlet communicated with the second confluence cavity being arranged between the cover and the edge of the opening of the inner liner; the air outlet facing the central plane 15 of the inner liner. The cookware makes youtiao with a straight shape and and can fry a plurality of youtiaoes together at the same time, the youtiao can be heated evenly to have a good appearance. Fig.1 Fig.2 i /0

Description

Cookware for Making Youtiao Field of the Invention The invention relates to a kitchen cookware, especially to a cookware for making youtiao. 5 Description of prior art Currently the cookware for making youtiao has a round shape, youtiao floated on the surface of oil would move to the edge of the cookware under the flow effect, youtiao would bend in a shape 10 similar to the shape of the edge, the shape of youtiao turns into arcuate shape resulted in reducing the qualification rate of youtiao. In order to maintain the straight shape of youtiao, the youtiao should be manually placed back to the middle portion of the wok to be continued on frying. There are a plurality of youtiaoes fried 15 together in the cookware at the same time for increasing productivity, becaue of the round shape of cookware and the strip profiled shape of youtiao, the area where can hold a totally straight youtiao is the middle portion of the cookware, the portion close to the edge can not hold a totally straight youtiao, unless youtiao has a 20 bending shape, but a youtiao with bending shape is not a conforming product, so the cookwar with a round shape has a low productivity, it is need to continually hold the positon of youtiao in the cookware during the frying process, the action is manual, so the labor cost in increased. 25 How to avoid youtiao from bending, maintaining the straight shape of youtiao with no manual intervention so as to increase the qualification and reduce the labor cost, it is a problem waiting to be solved. 30 1/13 Summary of the present invention The object of the invention is to provide a cookware for making youtiao. 5 Therefore, the invention provides a cookware for making youtiao, the cookware comprises a wok support, a inner liner, a cover and a handle; the cookware further comprises a receiving area with wide top and narrow bottom, the receiving area has a square opening facing 10 up; a main heating area is arranged along the longitudinal direction of the receiving area at the bottom portion of the receiving area, an auxiliary heating area is arranged to the both sides of the main heating area; 15 an air inlet communicated with the outside is arranged at the bottom portion of the wok support along the longitudinal direction of the wok support; a first air channel communicated with the air inlet is arranged at the bottom portion of the wok support along the transverse 20 direction of the wok support; both the first confluence cavity communicated with the first air channel, and the second air channel communicated with the first confluence cavity are arranged between the wok support and the handle; 25 a second confluence cavity communicated with the second air channel is arranged between the cover, the handle and the wok support; an air outlet communicated with the second confluence cavity is arranged between the cover and the edge of the opening of the 30 inner liner, the air outlet facing the central plane of the inner liner. Specifically, both the air inlet and the first air channel are arranged in the heat collecting area at the bottom portion of the wok 2/13 support; the second air channel is located below the second or third plane of the wok support; the space between the second or third arcuate surface of the 5 wok support and the handle is defined as the first confluence cavity; the space between the first groove of the handle and the second or third plane of the wok support is defined as the second air channel; the space between the cover, the handle and the vertical rim of 10 the wok support is defined as the second confluence cavity; the space between the cover and the edge of the inner liner is defined as the air outlet. Specifically, the handle comprises a fixed plane fitting well with the 15 first plane of the wok support, a first supporting plane arranged at a distance from the second arcuate surface, a second supporting plane parallel with and arranged at a distance from the second plane of the wok support, a mounting plane parallel with the fixed plane, and two side planes fitting well with the wok support; 20 the space surrounded by the fixed plane, the first supporting plane, the second supporting plane, the mounting plane, and two side planes is used for receiving hand. Specifically, the area surrounded by the first plane, the second 25 arcuate surface, the first arcuate surface and the third arcuate surface is defined as a heat collecting area; the second plane transitions to the first plane through the second arcuate surface, the third plane transitions to the first plane through the third arcuate surface, the second plane transitions to 30 the third plane through the first arcuate surface; the second plane and the third plane are symmetrical about the central plane of the first arcuate surface; the second arcuate surface and the third arcuate surface are symmetrical about the central plane of the first arcuate surface; 3/13 the second plane and the third plane are vertical to each other. Specifically, the inner liner has a peripheral wall fitting well with the inner shape of the wok support. 5 Preferably, the main heating area arranged above the heat collecting area, the auxiliary heating area arranged above the second or third plane of the wok support. 10 Preferably, the material of the inner liner (2) is food grade stainless steel. Advantageous Effects 1. Because the main heating area is arranged above the heat 15 collecting area, the temperature of the main heating area is obviously higher than the temperature of the auxiliary heating area located on both sides of the main heating area, therefore oil near the first arcuate surface moves up under the effect of the temperature difference, while oil near the second or third plane 20 moves down to the first arcuate surface, youtiao floated on the surface of oil moves to the edge of the cookware, and stops at the edge, because the edge of the cookware that is the first or second plane is with a plane shape, youtiao has a straight shape, so the qualification rate is increased. 25 2. The straight youtiao rolls slowly at the edge of the cookware under the oil flow effect combined with the air flow effect, rolling is good for youtiao to heat evenly so as to make youtiao with good appearance, and with the same color. 30 3. The receiving area with a square opening can fry a plurality of youtiaoes together at the same time, and each youtiao is straight, so the productivity is increased. 4/13 Brief description of the drawing In the following, the invention will be described in greater detail by means of some embodiments with reference to the accompanying drawings, in which 5 Fig.1 is a 3d-drawing of cookware for making youtiao of the invention; Fig.2 is a sectional view of Fig.1, adding one youtiao, oil is hiden; Fig.3 is a exploded view of Fig.1; Fig.4 is a front view of Fig.2; 10 Fig.5 is a 3d-drawing of making youtiao in round cookware; Fig.6 is a top view of Fig.5; Fig.7 is a sectional view of round wok in Fig.5; Fig.8 is a 3d-drawing of pouring oil from round cookware to the cookware shown in Fig.1; 15 Fig.9 is a 3d-drawing of making youtiao in the inner liner shown in Fig.8; Fig.10 is a top view of Fig.9; Fig.11 is a sectional view of wok support in Fig.1 along the longitudinal direction; 20 Fig.12 is a sectional view of wok support in Fig.1 along the transverse direction; Fig.13 is a 3d-drawing of handle in Fig.1; Fig.14 is a 3d-drawing of the handle in Fig.1 from another view angle; 25 Fig.15 is a sectional view in Fig.14 along A-A direction. 1. the wok support; 2. the inner liner; 3. the handle; 4. the cover; 5. the supporting plate; 6. the air inlet; 7. the first air channel; 8. the first confluence cavity; 9. the second air channel; 10. the second confluence cavity; 11. the air outlet; 0. the youtiao; 30 101. the first plane; 102. the second plane; 103.the third plane; 104.the first arcuate surface; 105. the second arcuate surface; 106. the third arcuate surface; 107. the heat collecting area; 108. the opening; 109. the front vertical plane; 5/13 110. the rear vertical plane; 111. the first receiving cavity; 112. the first through hole; 113. the second through hole; 114. the vertical rim; 115. the second receiving cavity; 116. the profiled through hole; 31. the fixed plane; 5 32. the first supporting plane; 33. the second supporting plane; 34. the mounting plane; 35. the first groove; 36. the second groove; 37. the side plane; 38. the third through hole; 39. the third receiving cavity. 10 Detailed description of the preferred embodiment Fig.1 and Fig.3 are 3d-drawings relative to an embodiment of a cookware according to the present invention. The cookware has one wok support 1 with a square profile, the cookware comprises two removable handles 3, four supporting plates, one inner liner 2, two 15 covers 4, and a plurality of fastening bolts and nuts. There is a first receiving cavity 111 for receiving the inner liner 2 at the middle portion of the wok support 1, there is a second receiving cavity 115 for receiving the handle 3 at each side of the wok support 1, there are two profiled through holes 116 on each the front and rear 20 vertical plane 109,110. Firstly the handle 3 is assembled in the second receiving cavity 115, secondly the supporting plate 5 is assembled in the profiled through hole 116 of the wok support 1, thirdly the supporting plate 5 and 25 the handle 3 are fastened by the fastening bolts and nuts such that the handle 3 can not uncouple from the wok support 1 with the help of limiting effect from the profiled through hole 116 to the supporting plate 5; fourthly the inner liner 2 is put into the first receiving cavity 111, the inner liner 2 can be fitted well with the first 30 receiving cavity 111 with the help of the interference effect between them, finally the cover 4 is partly studded in the responding second groove 36 of the handle 3, the cover 4 can be fastened to the handle 3 with the help of the interference effect 6/13 between them. When the assemble is done, the cookware has a receiving area with wide top and narrow bottom for receiving youtiao and oil, the receiving area has a square opening facing up. 5 Referring to Fig.11 and Fig.12, there is a first plane 101 arranged at the bottom of the wok support 1, a solid protrudes from the middle portion of the first plane 101, a second plane 102 extends from the top portion of the solid toward one side, a third plane 103 extends from the top portion of the solid toward the other side, the second 10 plane 102 transitions to the first plane 101 through the second arcuate surface 105, the third plane 103 transitions to the first plane 101 through the third arcuate surface 106, the second plane 102 transitions to the third plane 103 through the first arcuate surface 104; the second plane 102 and the third plane 103 are symmetrical 15 about the central plane of the first arcuate surface 104; the second arcuate surface 105 and the third arcuate surface 106 are symmetrical about the central plane of the first arcuate surface 104; the second plane 102 and the third plane 103 are vertical to each other. 20 There is a vertical rim 114 arranged straight up at the top portion of the second plane 102 and the third plane 103, an opening 108 for avoiding the projecting lip of the inner liner 2 is arranged near to the top portion of the front and rear vertical plane 109,110. There is 25 a first receiving cavity 111 surrounded by the second plane 102, the third plane 103, the first arcuate surface 104, the front vertical plane 109, the rear vertical plane 110 and the vertical rim 114 for receiving the inner liner 2. A solid area surrounded by the first plane 101, the second arcuate surface 105, the first arcuate surface 104 30 and the third arcuate surface 106 is defined as the heat collecting area 107, there is a first through hole 112 arranged along the axial direction of the first arcuate surface 104 in the heat collecting area 107, the first through hole 112 passes through the front and rear vertical plane 109,110 of the wok support 1, there are five second 7/13 through holes 113 arranged equidistantly along the left-right direction of the wok support 1 in the heat collecting area 107, the second through hole 113 passes through the second and third arcuate surface 105,106, the second through hole 113 5 communicates with the first through hole 112. Referring to Fig.15, the handle 3 comprises a fixed plane 31, a first supporting plane 32 extends straight up and vertically from the end portion of the fixed plane 31, a second supporting plane 33 extends 10 obliquely from the end portion of the first supporting plane 32 to the fixed plane 31, a mounting plane 34 extends from the end portion of the second supporting plane 33, the mounting plane 34 is parallel with the fixed plane 31. 15 Referring to Fig.14, the handle 3 consists of a fixed plane 31, a first supporting plane 32, a second supporting plane 33, a mounting plane 34 and two side planes 37. A third receiving cavity 39 consisting of one fixed plane 31, one first supporting plane 32, one second supporting plane 33 and two side planes 37 is used for 20 receiving hand, the third receiving cavity 39 has an opening facing right. There are two third through holes 38 for assembling fastening bolts arranged to each side plane 37 of the handle 3. Referring to Fig.13, there are eleven first grooves 35 arranged 25 equidistantly on the second supporting plane 33, the first groove 35 extends to the first supporting plane 32 and the mounting plane 34, the mounting plane 34 provides a second groove 36 for receiving part of cover 4. 30 Referring to Fig.2 and Fig.4, because the inner liner 2 has a peripheral wall fitting well with the inner shape of the wok support 1, heat from the heat collecting area 107 of the wok support 1 can transfer to the corresponding bottom portion of the inner liner 2 very well, heat from the second and third plane 102,103 can 8/13 transfer to the corresponding side plane of the inner liner 2 very well. Because the temperature of the heat collecting area 107 is obviously higher than the temperature of the second or third plane 102,103, the bottom portion of the receiving area of the inner liner 5 2 becomes the main heating area, two sides of the main heating area that is the two slopes of the inner liner 2 become the auxiliary heating area. The fixed plane 31 of the handle 3 fits well with the first plane 101 10 of the wok support 1, there is a certain distance between the first supporting plane 32 and the second or third arcuate surface 105,106 of the wok support 1, the second supporting plane 33 of the handle 3 is parallel with the second or third plane 102,103, and there is a certain distance between the second supporting plane 33 15 and the second or third plane 102,103. The cover 4 is partly studded in the mounting plane 34 of the handle 3, there is a certain distance between the inner top plane of the cover 4 and the top plane of the inner liner 2. 20 The first through hole 112 arranged along the longitudinal direction of the wok support 1 is defined as the air inlet 6 for communicating with the outside, the second through hole 113 arranged along the transverse direction of the wok support 1 is defined as the first air 25 channel 7 for communicating with the air inlet 6, the first and second through hole 112,113 are arranged at the bottom portion of the wok support 1. The cavity formed between the first supporting plane 32 of the 30 handle 3 and the second or third arcuate surface 105,106 of the wok support 1 is defined as the first confluence cavity 8 for communicating with the first air channel, the cavity formed between the first groove 35 of the second supporting plane 33 of the handle 3 and the second or third plane 102,103 of the wok 9/13 support 1 is defined as the second air channel 9 for communicating with the first confluence cavity 8, the cavity formed between the cover 4 and the mounting plane 34 of the handle 3 and the vertical rim 114 of the wok support 1 is defined as the second confluence 5 cavity 10 for communicating with the second air channel 9, the space formed between the edge of the opening of the inner liner 2 that is the top plane of the inner liner 2 and the inner top plane of the cover 4 is defined as the air outlet 11 for communicating with the second confluence cavity 10, the air outlet 11 faces the central 10 plane of the inner liner 2, the angle formed between the direction of the air from the outlet 11 and the oil surface of the inner liner 2 is ten degrees. Referring to Fig.5 and Fig.6, it is a view of making youtiao by 15 traditional cookware with a round shape, oil flows in the wok due to the effect of the temperature difference when oil is heated, referring to Fig.7. The youtiao 0 in the round wok moves to the edge of the wok under the flow effect, finally the youtiao 0 is at edge of the wok, the youtiao 0 bends in a shape similar to the shape of the 20 edge due to staying at the edge for a long time, the shape of youtiao 0 turns into arcuate shape, a youtiao with bending shape is not a conforming product, in order to maintain the straight shape of youtiao, youtiao 0 should be manually placed back to the middle portion of the wok to be continued on frying so as to make a 25 conforming product. There are a plurality of youtiaoes 0 fried together in the cookware at the same time for increasing productivity, becaue of the round shape of cookware and the strip profiled shape of youtiao 0, the 30 area where can hold a totally straight youtiao 0 is the middle portion of the cookware, the portion close to the edge can not hold a totally straight youtiao 0, unless youtiao 0 has a bending shape, but a youtiao 0 with bending shape is not a conforming product, so the cookware with a round shape can only make three conforming 10/13 youtiaoes 0 from five youtiaoes 0 with no manual intervention. Fig.8 is a 3d-drawing of pouring oil from round cookware to the cookware shown in Fig.1, in order to make comparison between the 5 square cookware and the traditional round cookware. Referring to Fig.4, because the temperature of the main heating area is obviously higher than the temperature of the auxiliary heating area, therefore oil near the first arcuate surface 104 moves up under the effect of the temperature difference, while oil near the second or 10 third plane 102,103 moves down to the first arcuate surface 104, youtiao 0 floated on the surface of oil moves to the edge of the inner liner 2, and stops at the edge, because the edge of the inner liner 2 is with a plane shape, youtiao 0 has a straight shape, the youtiao is a conforming product. 15 After the cookware is heated, the temperature of the air in the air inlet 6 is higher than the temperature of the air in the second air channel 9, and the air outlet 11 locates at the top portion of the cookware, therefore air from outside through the air inlet 6 passes 20 through the first air channel 7, the first confluence cavity 8, the second air channel 9, the second confluence cavity 10 in sequence, finally air come out from the air outlet 11. The angle between the direction of the air from the air outlet 11 and the oil surface is about ten degrees, air flow in this direction blows the upper edge of the 25 youtiao 0 near the edge of the inner liner 2 so as to make the youtiao 0 roll around its axis in clockwise direction, the flow effect of oil help youtiao 0 roll, rolling is good for youtiao 0 to heat evenly so as to make youtiao 0 with good appearance, and with the same color. 30 There are a plurality of youtiaoes 0 fried together in the square cookware at the same time for increasing productivity, five youtiaoes 0 can be hold in the receiving area according to the oil quantity in the receiving area, because the receiving area has a 11/13 square opening while the youtiao 0 has a strip profiled shape, five youtiaoes 0 can be placed one by one in the receiving area, the straight youtiao 0 rolls around its axis in the receiving area under the flow effect, especially youtiao rolls slowly at the edge of the 5 cookware, Therefore, the square cookware can fry five conforming youtiaoes 0 with no manual intervention, referrign to Fig.9 and Fig.10. The first plane 101 of the wok support 1 can be placed on the fire to 10 heat directly, when the material of the wok support 1 is metal, such as iron, aluminum, copper or alloy. When the material of wok support 1 is iron, the first plane 101 of the cookware can be placed on the electromagnetic oven. The material of the inner liner 2 is food grade stainless steel, such that the youtiao 0 fried from the 15 inner liner 2 is safe to eat. The temperature of oil in the receiving area changes slowly due to the effect of the heat collecting area 107, especially when a plurality of doughs are just placed into the cookware, the temperature of oil 20 reduces down, but the heat from heat collecting area 107 supplies the lost heat quicklyso as to slow down the temperature drop, thus the temperature of oil is still in the frying range. The oil in the receiving area is mainly heated by the first arcuate 25 surface 104 above the heat collecting area 107 and assistantly heated by the second and third plane 102,103, such arrangement increases an oil flow in the middle portion of the receiving area, that is above the first arcuate surface 104 moving up along the its axis, and increases an oil flow near the second or third plane 102,103 30 moving down, so the oil on the surface moves from the middle portion of the receiving area along the axial direction of the first arcuate surface 104 to the edge of the cookware. Thus the youtiao 0 moves directionally to the edge of cookware after rising to the surface of oil, rather than to rotate in clockwise or anticlockwise 12/13 direction on the oil surface. After the youtiao 0 moves to the edge of the cookware, the straight youtiao 0 rolls around its axis in the receiving area under the oil flow effect combined with the air flow effect, rolling is good for youtiao 0 to heat evenly so as to make 5 youtiao 0 with good appearance, and with the same color. When there are a plurality of youtiaoes 0 in the cookware, youtiaoes 0 arrange themselves into a queue as shown in Fig.9 and Fig.10. Oil in the inner liner 2 can be poured conveniently to the container through the lip projecting outwardly from the portion near the 10 opening of inner liner 2, after the frying process is finished. The oil on the surface moves radially to the edge of the round cookware because the heating plane at the bottom of the wok is circular. So the youtiao 0 rotates in clockwise or anticlockwise 15 direction on the oil surface so as to make the length direction of youtiao 0 align with the radial direction of the wok as moving to the edge of cookware. When there are a plurality of youtiaoes 0 in the wok, them collide to one another and arrange higgledy-piggledy in the wok resulted in wasting space, it is need to make them in order 20 with manual intervention so as to place more youtiaoes 0 in the wok. The arcuate surface is arranged to connect planes of the wok support 1 to make the temperature distribution and transmission 25 more even, and such arrangement is convenient for manufacturing. 13/13

Claims (7)

1. A cookware for making youtiao, comprising a wok support (1), a inner liner (2), a cover (4) and a handle (3), characterized in that the cookware comprising a receiving area with wide top 5 and narrow bottom, the receiving area having a square opening facing up; a main heating area arranged along the longitudinal direction of the receiving area at the bottom portion of the receiving area, an auxiliary heating area arranged to the both sides 10 of the main heating area; an air inlet (6) communicated with the outside being arranged at the bottom portion of the wok support (1) along the longitudinal direction of the wok support; a first air channel (7) communicated with the air inlet (6) 15 being arranged at the bottom portion of the wok support (1) along the transverse direction of the wok support; both the first confluence cavity (8) communicated with the first air channel (6), and the second air channel (9) communicated with the first confluence cavity (8) being arranged 20 between the wok support (1) and the handle (3); a second confluence cavity (10) communicated with the second air channel (9) being arranged between the cover (4), the handle (3) and the wok support (1); an air outlet (11) communicated with the second 25 confluence cavity (10) being arranged between the cover (4) and the edge of the opening of the inner liner, the air outlet (11) facing the central plane of the inner liner (2).

2. A cookware for making youtiao according to claim 1, 30 characterized in that both the air inlet (6) and the first air channel (7) being arranged in the heat collecting area (107) at the bottom portion of 1/3 the wok support (1); the second air channel (9) located below the second or third plane (102,103) of the wok support (1); the space between the second or third arcuate surface 5 (105,106) of the wok support (1) and the handle (3) being defined as the first confluence cavity (8); the space between the first groove (35) of the handle (3) and the second or third plane (102,103) of the wok support (1) being defined as the second air channel (9); 10 the space between the cover (4), the handle (3) and the vertical rim (114) of the wok support (1) being defined as the second confluence cavity (10); the space between the cover (4) and the edge of the inner liner (2) being defined as the air outlet (11). 15

3. A cookware for making youtiao according to claim 2, characterized in that the handle (3) comprising a fixed plane (31) fitting well with the first plane (101) of the wok support (1), a first supporting 20 plane (32) arranged at a distance from the second arcuate surface (105), a second supporting plane (33) parallel with and arranged at a distance from the second plane (102) of the wok support (1), a mounting plane (34) parallel with the fixed plane (31), and two side planes (37) fitting well with the wok support (1); 25 the space surrounded by the fixed plane (31), the first supporting plane (32), the second supporting plane (33), the mounting plane (34), and two side planes (37) being used for receiving hand. 30

4. A cookware for making youtiao according to claim 2, characterized in that the area surrounded by the first plane (101), the second arcuate surface (105), the first arcuate surface (104) and the third arcuate surface (106) being defined as a heat collecting area (107); 2/3 the second plane (102) transitioning to the first plane (101) through the second arcuate surface (105), the third plane (103) transitioning to the first plane (101) through the third arcuate surface (106), the second plane (102) transitioning to the third 5 plane (103) through the first arcuate surface (104); the second plane (102) and the third plane (103) being symmetrical about the central plane of the first arcuate surface (104); the second arcuate surface (105) and the third arcuate 10 surface (106) being symmetrical about the central plane of the first arcuate surface (104); the second plane (102) and the third plane (103) being vertical to each other. 15

5. A cookware for making youtiao according to claim 2, characterized in that the inner liner (2) has a peripheral wall fitting well with the inner shape of the wok support (1). 20

6. A cookware for making youtiao according to claim 1, characterized in that the main heating area arranged above the heat collecting area (107), the auxiliary heating area arranged above the second or third plane (102,103) of the wok support (1). 25

7. A cookware for making youtiao according to claim 1, characterized in that the material of the inner liner (2) is food grade stainless steel. 3/3