Energy-gathering pot stand and cooking appliance

Abstract

The present invention relates to the technical field of kitchen utensils, and in particular to an energy-gathering pot rack and a cooking appliance. The energy-gathering pot rack includes a pot rack body, a flow guide plate and a heat exchange plate. A flue gas inlet is provided on the inner ring surface of the pot rack body, and a flue gas outlet is provided on the outer ring surface of the pot rack body; the flow guide plate is fixedly connected to the pot rack body, and the flow guide plate is located above the flue gas inlet; the heat exchange plate is fixedly connected in the inner cavity formed between the inner ring surface and the outer ring surface of the pot rack body, and the heat exchange plate is located between the flue gas inlet and the flue gas outlet. The heat exchange plate is provided with through holes, and both the flue gas inlet and the flue gas outlet are communicated with the through holes. The energy-gathering pot rack and the cooking appliance provided by the present invention can increase the heat exchange amount between the high-temperature flue gas and the energy-gathering pot rack, effectively utilize the heat conduction of the energy-gathering pot rack to heat the bottom of the pot, reduce heat loss, and improve the thermal efficiency of the cooking appliance.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen utensils, and particularly to an energy-gathering pot stand and a cooking appliance. Background Art

[0002] Gas cooking appliances are essential kitchen utensils for residents' daily life. As one of the performance indicators of gas stoves, the thermal efficiency has attracted more and more attention from users. In order to improve the thermal efficiency, more and more technicians have focused on the research of energy-gathering pot stands. An annular energy-gathering pot stand is added between the burner and the bottom of the pot to form a semi-closed combustion space, enhancing the heat exchange amount between the burner and the bottom of the pot and improving the thermal efficiency of the gas cooking appliance.

[0003] A large amount of high-temperature flue gas is generated during the heat exchange between the burner and the bottom of the pot, and this part of the flue gas carries a large amount of heat. However, in the structural design of the vast majority of energy-gathering pot stands on the market at present, the high-temperature flue gas is directly discharged, which will cause serious heat loss and reduce the thermal efficiency of the gas cooking appliance. Summary of the Invention

[0004] The purpose of the present invention is to provide an energy-gathering pot stand and a cooking appliance to alleviate the technical problem in the prior art that the existing energy-gathering pot stand directly discharges high-temperature flue gas, resulting in serious heat loss.

[0005] Based on the above purpose, the present invention provides an energy-gathering pot stand, which includes a pot stand body, a diversion plate, and a heat exchange plate. A flue gas inlet is arranged on the inner ring surface of the pot stand body, and a flue gas outlet is arranged on the outer ring surface of the pot stand body; the diversion plate is fixedly connected to the pot stand body, and the diversion plate is located above the flue gas inlet; the heat exchange plate is fixedly connected in the inner cavity formed between the inner ring surface and the outer ring surface of the pot stand body, and the heat exchange plate is located between the flue gas inlet and the flue gas outlet. The heat exchange plate is provided with through holes, and both the flue gas inlet and the flue gas outlet are communicated with the through holes.

[0006] Further, an annular smoke baffle is arranged outside the outer ring surface of the pot stand body, and the annular smoke baffle is located below the flue gas outlet.

[0007] Further, the heat exchange plate is in an annular plate shape, the inner ring edge of the heat exchange plate is fixedly connected to the inner ring surface of the pot stand body, and the outer ring edge of the heat exchange plate is fixedly connected to the outer ring surface of the pot stand body.

[0008] Further, the plate surface of the heat exchange plate is perpendicular to the axis of the pot stand body.

[0009] Further, the number of the heat exchange plates is multiple, and the multiple heat exchange plates are arranged at intervals along the axial direction of the pot stand body.

[0010] Further, among two adjacent heat exchange plates, the through holes on one heat exchange plate are arranged staggeredly with the through holes on the other heat exchange plate.

[0011] Further, the pot rack body includes an upper rack and a lower rack, and the upper rack, the lower rack and the diversion plate enclose to form the inner cavity; the flue gas inlet is located on the upper rack, and the flue gas outlet is located on the lower rack.

[0012] Further, the upper rack includes a first annular bottom plate and a first annular side wall extending upward from the circumferential outer edge of the first annular bottom plate, and the upper edge of the first annular side wall is fixedly connected to the lower surface of the diversion plate; the lower rack includes a second annular bottom plate and a second annular side wall extending upward from the circumferential outer edge of the second annular bottom plate, and the upper edge of the second annular side wall is fixedly connected to the lower surface of the diversion plate, and the circumferential inner edge of the second annular bottom plate is fixedly connected to the circumferential inner edge of the first annular bottom plate; the flue gas inlet is located on the first annular side wall, and the flue gas outlet is located on the second annular side wall.

[0013] Further, the energy-gathering pot rack further includes a transition plate, and the transition plate is fixedly connected between the inner ring surface and the outer ring surface of the pot rack body, and the transition plate is located below the flue gas outlet.

[0014] Further, the transition plate is provided with smoke guiding holes.

[0015] Further, the number of the flue gas inlets is multiple, and the multiple flue gas inlets are evenly spaced along the inner ring surface of the pot rack body; the number of the flue gas outlets is multiple, and the multiple flue gas outlets are evenly spaced along the outer ring surface of the pot rack body.

[0016] Based on the above object, the present invention further provides a cooker, including the energy-gathering pot rack as described above.

[0017] Compared with the prior art, the beneficial effects of the present invention mainly lie in:

[0018] The energy-gathering pot rack provided by the present invention includes a pot rack body, a diversion plate and a heat exchange plate. The inner ring surface of the pot rack body is provided with a flue gas inlet, and the outer ring surface of the pot rack body is provided with a flue gas outlet; the diversion plate is fixedly connected to the pot rack body, and the diversion plate is located above the flue gas inlet; the heat exchange plate is fixedly connected in the inner cavity formed between the inner ring surface and the outer ring surface of the pot rack body, and the heat exchange plate is located between the flue gas inlet and the flue gas outlet. The heat exchange plate is provided with through holes, and both the flue gas inlet and the flue gas outlet are communicated with the through holes.

[0019] Based on this structure, when in use, the energy-gathering pot rack provided by the present invention is placed around the burner, and the cooking utensil is placed on the energy-gathering pot rack. The high-temperature flue gas generated by combustion rises. Under the blocking and guiding effects of the guide plate, the rising speed of the high-temperature flue gas is inhibited, and most of the high-temperature flue gas enters the inner cavity through the flue gas inlet, then passes through the through holes on the heat exchange plate, and finally is discharged from the flue gas outlet. This is equivalent to extending the residence time of the flue gas in the inner cavity, increasing the heat exchange amount between the high-temperature flue gas and the energy-gathering pot rack, effectively using the heat conduction of the energy-gathering pot rack to heat the bottom of the cooking utensil, and reducing heat loss.

[0020] Due to the use of the energy-gathering pot rack provided by the present invention, the cooking appliance provided by the present invention can increase the heat exchange amount between the high-temperature flue gas and the energy-gathering pot rack, effectively use the heat conduction of the energy-gathering pot rack to heat the bottom of the cooking utensil, reduce heat loss, and improve the thermal efficiency of the cooking appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the energy-gathering cooking utensil provided by the embodiment of the present invention;

[0023] Figure 2 It is a cross-sectional view of the energy-gathering cooking utensil provided by the embodiment of the present invention;

[0024] Figure 3 For Figure 2 The partial enlarged view at A in;

[0025] Figure 4 It is a partial structural schematic diagram of a variant of the energy-gathering cooking utensil provided by the embodiment of the present invention;

[0026] Figure 5 It is a partial structural schematic diagram of the cooking appliance provided by the embodiment of the present invention.

[0027] Reference Signs: 1 - Flue Gas Inlet; 2 - Flue Gas Outlet; 3 - Heat Exchange Plate; 4 - Guide Plate; 5 - Annular Smoke Baffle; 6 - Transition Plate; 7 - Smoke Guide Hole; 8 - Pot Rack Support Leg; 9 - Cooking Utensil Support Leg; 10 - Burner; 11 - First Annular Bottom Plate; 12 - First Annular Side Wall; 13 - Second Annular Bottom Plate; 14 - Second Annular Side Wall; 15 - Flange; 16 - Upper Rack; 17 - Lower Rack; 18 - Through Hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, terms such as "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] Embodiment 1

[0032] See Figures 1 to 4 As shown in the figure, this embodiment provides a concentrating pot rack, which includes a pot rack body, a deflector 4 and a heat exchange plate 3. A flue gas inlet 1 is provided on the inner ring surface of the pot rack body, and a flue gas outlet 2 is provided on the outer ring surface of the pot rack body; the deflector 4 is fixedly connected to the pot rack body, and the deflector 4 is located above the flue gas inlet 1; the heat exchange plate 3 is fixedly connected in the inner cavity formed between the inner ring surface and the outer ring surface of the pot rack body, and the heat exchange plate 3 is located between the flue gas inlet 1 and the flue gas outlet 2. The heat exchange plate 3 is provided with through holes 18, and both the flue gas inlet 1 and the flue gas outlet 2 are communicated with the through holes 18.

[0033] Based on this structure, when the energy-gathering pot rack provided in this embodiment is in use, the energy-gathering pot rack is placed around the burner 10, and the cookware is placed on the energy-gathering pot rack. The high-temperature flue gas generated by combustion rises. Under the blocking and guiding effects of the guiding plate 4, the rising speed of the high-temperature flue gas is inhibited, and most of the high-temperature flue gas enters the inner cavity from the flue gas inlet 1, then passes through the through holes 18 on the heat exchange plate 3, and finally is discharged from the flue gas outlet 2. This is equivalent to extending the residence time of the flue gas in the inner cavity, increasing the heat exchange amount between the high-temperature flue gas and the energy-gathering pot rack, effectively using the heat conduction of the energy-gathering pot rack to heat the bottom of the cookware, and reducing heat loss.

[0034] See Figure 1 As shown, the pot rack body in this embodiment includes an upper rack 16 and a lower rack 17. The upper rack 16, the lower rack 17, and the guiding plate 4 enclose to form an inner cavity; the flue gas inlet 1 is located on the upper rack 16, and the flue gas outlet 2 is located on the lower rack 17.

[0035] Furthermore, the upper rack 16 includes a first annular bottom plate 11 and a first annular side wall 12 extending upward from the circumferential outer edge of the first annular bottom plate 11. The upper edge of the first annular side wall 12 is fixedly connected to the lower surface of the guiding plate 4; the lower rack 17 includes a second annular bottom plate 13 and a second annular side wall 14 extending upward from the circumferential outer edge of the second annular bottom plate 13. The upper edge of the second annular side wall 14 is fixedly connected to the lower surface of the guiding plate 4, and the circumferential inner edge of the second annular bottom plate 13 is fixedly connected to the circumferential inner edge of the first annular bottom plate 11; the flue gas inlet 1 is located on the first annular side wall 12, and the flue gas outlet 2 is located on the second annular side wall 14.

[0036] Optionally, the upper edge of the first annular side wall 12 is welded to the lower surface of the guiding plate 4, and the upper edge of the second annular side wall 14 is welded to the lower surface of the guiding plate 4.

[0037] Optionally, the first annular bottom plate 11 is in a flat plate shape, the second annular bottom plate 13 is in a hollow frustum shape with both ends open, the inner ring diameter of the second annular bottom plate 13 is smaller than the outer ring diameter of the second annular bottom plate 13, and the inner ring edge of the second annular bottom plate 13 is bent towards the second annular side wall 14 to form a flange 15. The inner ring edge of the first annular bottom plate 11 is welded or abutted against the bent portion.

[0038] In this embodiment, the flue gas inlet 1 is above the flue gas outlet 2. That is to say, the distance between the flue gas inlet 1 and the guiding plate 4 is smaller than the distance between the flue gas outlet 2 and the guiding plate 4. This way can ensure that the contact area between the high-temperature flue gas and the upper rack 16 and the lower rack 17 is larger, thereby increasing the heat exchange amount between the high-temperature flue gas and the energy-gathering pot rack and reducing heat loss.

[0039] In this embodiment, the deflector plate 4 is an annular plate, and the plate surface of the deflector plate 4 is perpendicular to the axis of the pot rack body. The inner ring diameter of the deflector plate 4 is larger than the inner ring diameter of the second annular bottom plate 13. In this way, on the basis of ensuring the upward flow of high-temperature flue gas, most of the high-temperature flue gas can be deflected into the flue gas inlet 1.

[0040] Optionally, the inclination angles of the first annular side wall 12 and the second annular side wall 14 are substantially the same.

[0041] Further, an annular smoke baffle 5 is provided outside the outer ring surface of the pot rack body, and the annular smoke baffle 5 is located below the flue gas outlet 2.

[0042] Optionally, the inner ring edge of the annular smoke baffle 5 is welded to the outer surface of the second annular side wall 14.

[0043] The flue gas discharged from the flue gas outlet 2 heats the annular smoke baffle 5 again, reducing the loss of heat exchange between the flue gas and the outside cold air. Using the heat conduction of the annular smoke baffle 5 itself, it preheats the secondary air at the bottom of the lower rack 17, making full use of the heat of the high-temperature flue gas and further improving the thermal efficiency. At the same time, the annular smoke baffle 5 can block the downward movement path of the flue gas coming out of the flue gas outlet 2, reducing the impact on the replenishment of secondary air, ensuring the smooth replenishment of secondary air, and improving the stability of the burner 10.

[0044] In this embodiment, the heat exchange plate 3 is in the shape of an annular plate. The inner ring edge of the heat exchange plate 3 is fixedly connected to the inner ring surface of the pot rack body, and the outer ring edge of the heat exchange plate 3 is fixedly connected to the outer ring surface of the pot rack body.

[0045] In this embodiment, the inner ring edge of the heat exchange plate 3 is welded to the first annular side wall 12, and the outer ring edge of the heat exchange plate 3 is welded to the second annular side wall 14. In this way, the flue gas can only flow downward through the through holes 18, extending the residence time of the flue gas in the inner cavity.

[0046] Further, the plate surface of the heat exchange plate 3 is perpendicular to the axis of the pot rack body.

[0047] It should be noted that the plate surface of the heat exchange plate 3 can also form an obtuse angle or an acute angle with the axis of the pot rack body.

[0048] Further, the number of the heat exchange plates 3 is multiple, and the multiple heat exchange plates 3 are arranged at intervals along the axial direction of the pot rack body.

[0049] In this embodiment, the number of the heat exchange plates 3 is two, and the two heat exchange plates 3 are arranged at intervals along the axial direction of the pot rack body.

[0050] Furthermore, among two adjacent heat exchange plates 3, the through holes 18 on one heat exchange plate 3 are arranged staggeredly with the through holes 18 on the other heat exchange plate 3. In this way, it can prevent the flue gas from passing directly and smoothly through the through holes 18 on the two heat exchange plates 3. At the same time, when the flue gas flows downward from the through holes 18 on the upper heat exchange plate 3, the flue gas will contact the plate surface of the lower heat exchange plate 3 and conduct convective heat exchange with the lower heat exchange plate 3, which not only increases the residence time of the flue gas in the inner cavity, but also can effectively reduce the heat loss of the high-temperature flue gas discharged directly.

[0051] It should be noted that the number of the heat exchange plates 3 can also be one.

[0052] Furthermore, as shown in Figure 3 the figure, the energy-gathering pot rack further includes a transition plate 6. The transition plate 6 is fixedly connected between the inner ring surface and the outer ring surface of the pot rack body, and the transition plate 6 is located below the flue gas outlet 2.

[0053] Optionally, the plate surface of the transition plate 6 is parallel to the plate surface of the heat exchange plate 3. The transition plate 6 is in a ring plate shape. The inner ring edge of the transition plate 6 is fixedly connected to the first annular side wall 12, and the outer ring edge of the transition plate 6 is fixedly connected to the second annular side wall 14.

[0054] In this embodiment, the inner ring edge of the transition plate 6 is integrally formed with the first annular side wall 12, and the outer ring edge of the transition plate 6 is welded to the second annular side wall 14.

[0055] By providing the transition plate 6, the transition plate 6, the first annular bottom plate 11, the second annular bottom plate 13 and a part of the second annular side wall 14 located below the transition plate 6 together form a closed cavity, which has a heat preservation effect on the high-temperature flue gas above. At the same time, the cavity can also block the heat of the high-temperature flue gas from being transferred to the cooktop panel, reducing the risk of the panel being heated and cracked and improving the safety.

[0056] As shown in Figure 4 the figure, if in order to further extend the residence time of the flue gas in the inner cavity, smoke guiding holes 7 can also be provided on the transition plate 6. At this time, a part of the flue gas above the transition plate 6 is discharged from the flue gas outlet 2, and another part enters the area below the transition plate 6 through the smoke guiding holes 7. As time goes by and the internal and external pressure difference changes caused by the flow of the flue gas, the flue gas in this area will eventually be discharged from the flue gas outlet 2.

[0057] Optionally, the smoke guiding holes 7 are arranged staggeredly with the through holes 18 on the heat exchange plate 3 located above the transition plate 6.

[0058] Furthermore, there are multiple flue gas inlets 1, and the multiple flue gas inlets 1 are evenly spaced along the inner ring surface of the pot rack body; there are multiple flue gas outlets 2, and the multiple flue gas outlets 2 are evenly spaced along the outer ring surface of the pot rack body. This can ensure that the flue gas enters the inner cavity more evenly and smoothly along the circumferential direction of the inner ring surface, and after passing through the through holes 18 of the heat exchange plate 3, it is discharged along the circumferential direction of the outer ring surface.

[0059] The energy-gathering pot rack provided in this embodiment further includes a pot rack support foot 8 and a cookware support foot 9. The pot rack support frame is welded to the lower layer frame 17 and the annular smoke baffle 5, and the cookware support foot 9 is welded to the upper layer frame 16 and the flow guide plate 4.

[0060] This embodiment also provides a cooker, including the energy-gathering pot rack provided in this embodiment.

[0061] For the cooker provided in this embodiment, due to the use of the energy-gathering pot rack provided by the present invention, the heat exchange amount between the high-temperature flue gas and the energy-gathering pot rack can be increased, the bottom of the cookware can be effectively heated by using the heat conduction of the energy-gathering pot rack, the heat loss is reduced, and the thermal efficiency of the cooker is improved.

[0062] Furthermore, as shown in Figure 5 the figure, the cooker further includes a burner 10, and there is a gap between the circumferential surface of the burner 10 and the inner ring surface of the pot rack body.

[0063] Figure 5 In the figure, the solid arrow direction represents the flow direction of the high-temperature flue gas, and the dashed arrow direction represents the flow direction of the secondary air. The secondary air enters from the gap between the circumferential surface of the burner 10 and the inner ring surface of the pot rack body and mixes with the gas to improve the thermal efficiency.

[0064] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A concentrated energy pot rack, characterized in that, It includes a pot rack body, a deflector plate (4) and a heat exchange plate (3). A flue gas inlet (1) is provided on the inner ring surface of the pot rack body, and a flue gas outlet (2) is provided on the outer ring surface of the pot rack body. The flue gas inlet (1) is located above the flue gas outlet (2). The deflector plate (4) is fixedly connected to the pot rack body, and the deflector plate (4) is located above the flue gas inlet (1). The heat exchange plate (3) is fixedly connected in the inner cavity formed between the inner ring surface and the outer ring surface of the pot rack body, and the heat exchange plate (3) is located between the flue gas inlet (1) and the flue gas outlet (2). The heat exchange plate (3) is provided with through holes (18), and both the flue gas inlet (1) and the flue gas outlet (2) are communicated with the through holes (18). An annular smoke baffle (5) is provided outside the outer ring surface of the pot rack body, and the annular smoke baffle (5) is located below the flue gas outlet (2).

2. The energy-gathering pot rack according to claim 1, wherein The heat exchange plate (3) is in the shape of an annular plate. The inner ring edge of the heat exchange plate (3) is fixedly connected to the inner ring surface of the pot rack body, and the outer ring edge of the heat exchange plate (3) is fixedly connected to the outer ring surface of the pot rack body.

3. The energy-gathering pot rack according to claim 2, characterized in that, The plate surface of the heat exchange plate (3) is perpendicular to the axis of the pot rack body.

4. The energy-gathering pot rack according to claim 1, characterized in that, The number of the heat exchange plates (3) is multiple, and the multiple heat exchange plates (3) are arranged at intervals along the axial direction of the pot rack body.

5. The energy-gathering pot rack according to claim 4, wherein, Among two adjacent heat exchange plates (3), the through holes (18) on one of the heat exchange plates (3) are arranged in a staggered manner with the through holes (18) on the other heat exchange plate (3).

6. The energy-gathering pot rack according to any one of claims 1 to 5, characterized in that The pot rack body includes an upper layer rack (16) and a lower layer rack (17). The upper layer rack (16), the lower layer rack (17) and the deflector plate (4) enclose to form the inner cavity. The flue gas inlet (1) is located on the upper layer rack (16), and the flue gas outlet (2) is located on the lower layer rack (17).

7. The energy-gathering pot rack according to claim 6, wherein The upper layer rack (16) includes a first annular bottom plate (11) and a first annular side wall (12) extending upward from the circumferential outer edge of the first annular bottom plate (11). The upper edge of the first annular side wall (12) is fixedly connected to the lower surface of the deflector plate (4). The lower layer rack (17) includes a second annular bottom plate (13) and a second annular side wall (14) extending upward from the circumferential outer edge of the second annular bottom plate (13). The upper edge of the second annular side wall (14) is fixedly connected to the lower surface of the deflector plate (4). The circumferential inner edge of the second annular bottom plate (13) is fixedly connected to the circumferential inner edge of the first annular bottom plate (11). The flue gas inlet (1) is located on the first annular side wall (12), and the flue gas outlet (2) is located on the second annular side wall (14).

8. The energy-gathering pot rack according to claim 7, wherein, It further includes a transition plate (6). The transition plate (6) is fixedly connected between the inner ring surface and the outer ring surface of the pot rack body, and the transition plate (6) is located below the flue gas outlet (2).

9. The energy-gathering pot rack according to claim 8, wherein, The transition plate (6) is provided with smoke guiding holes (7).

10. The energy-gathering pot rack according to any one of claims 1 to 5, characterized in that The number of the flue gas inlets (1) is multiple, and the multiple flue gas inlets (1) are uniformly and spacedly arranged along the inner ring surface of the pot rack body; the number of the flue gas outlets (2) is multiple, and the multiple flue gas outlets (2) are uniformly and spacedly arranged along the outer ring surface of the pot rack body.

11. A cooking appliance, characterized in that, Comprising the energy-gathering pot rack according to any one of claims 1 to 10.

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