Energy-saving type commercial steam box with uniform heating function

Abstract

The utility model discloses an energy-saving commercial steam box capable of heating uniformly. The energy-saving commercial steam box comprises a cabinet body, two brackets, a water tank and a heater, the bracket comprises two vertical edge strips and a plurality of tray rails; a ventilation gap is formed between each tray track and the inner wall of the cabinet body; one vertical edge strip of the bracket is rotationally connected to the inner wall of the cabinet body, and the other vertical edge strip of the bracket is selectively connected with the inner wall of the cabinet body in a clamped mode. Steam at the bottom of the cabinet body can quickly and upwards circulate through the ventilation seams, so that each layer is uniformly heated, and the steaming quality is improved while the steaming time is shortened. The bracket rotates to open the ventilation seam, so that cleaning is facilitated, and food residues and steam residual liquid are prevented from being attached; and the bracket can be conveniently detached to deeply clean the cabinet body. The heated pipe increases the heated area of water in the water tank and improves the heating speed; the first smoke exhaust pipe and the second smoke exhaust pipe utilize heat of tail gas generated by combustion to conduct secondary heating on water and steam, and the energy utilization rate is increased.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen utensils technology, and in particular relates to an energy-saving commercial steam oven with uniform heating. Background Technology

[0002] Steam ovens are widely used kitchen cooking equipment in large canteens of hotels, military units, schools, factories, etc., mainly for steaming rice, steamed buns, dumplings, meat, and seafood. Their main structural components include a cabinet, cabinet doors, racks, trays, and a steam generating unit. With the improvement of people's living standards, there are higher expectations for the quality and user experience of steamed rice. Existing steam ovens generally use multiple layers of rice containers simultaneously, with the steam generating unit located at the bottom. This can easily obstruct the upward flow of steam, resulting in insufficient contact between the upper rice containers and the steam, ultimately causing the rice in the upper containers to be undercooked. This situation affects the quality and efficiency of steaming rice and fails to meet users' needs for evenly cooked rice.

[0003] Chinese patent document CN219048073U discloses a rice steamer, including a steaming chamber, a tray rack, and a steam generator. The steaming chamber contains a steaming cavity, and a steam circulation pipe is provided on the side wall of the steaming chamber. Several first air outlets are provided on the inner wall of the steaming chamber, each connecting to the steam circulation pipe and the steaming cavity. The tray rack has several vertically spaced support members, with some of the first air outlets located between adjacent support members when the support members are housed in the steaming cavity. The steam generator communicates with the steam circulation pipe to provide steam to the steaming chamber. When using the rice steamer, a tray containing food is placed on the support members. By placing the steam outlets between adjacent support members, the food on each layer of support members can directly contact the high-temperature steam flowing from the steam circulation pipe, allowing food on different layers to be heated simultaneously, reducing uneven heating and improving steaming efficiency.

[0004] In the aforementioned patented solution, while the steam circulation pipes on the side walls can accelerate the upward flow of steam, their wide design increases the volume of the steamer, leading to a greater demand for steam. This not only reduces work efficiency but also increases the space occupied by the steamer. Conversely, narrow steam circulation pipes allow residual moisture and food residue to adhere to them during use, making thorough cleaning difficult due to limited space. Utility Model Content

[0005] To overcome the technical problems of obstructed steam flow at the top of existing commercial steam ovens, and the need to add steam flow pipes to the side walls which would increase the oven's volume, reduce efficiency, increase space requirements, or make cleaning inconvenient, this invention aims to provide an energy-saving commercial steam oven with uniform heating. This is achieved by creating a ventilation slit between the bracket and the inner wall of the cabinet to facilitate upward steam flow; simultaneously, one side of the bracket is rotatably connected to the inner wall of the cabinet, while the other side is snapped into the cabinet body. Rotating the bracket opens the ventilation slit, facilitating cleaning.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an energy-saving commercial steam oven with uniform heating, comprising a cabinet, two brackets respectively disposed on the inner wall of the cabinet, a water tank disposed at the bottom of the cabinet, and a heater disposed at the bottom of the water tank; the brackets include two longitudinally arranged vertical strips and multiple tray tracks horizontally disposed between the two vertical strips for placing trays; the tray tracks are used to support trays for steaming food; each tray track is arranged linearly and uniformly along the longitudinal direction; each tray track is provided with a ventilation gap between it and the inner wall of the cabinet; wherein, one of the vertical strips of the bracket is rotatably connected to the inner wall of the cabinet, and the other vertical strip is optionally engaged with the inner wall of the cabinet.

[0007] Optionally, the heater is a gas heater; the heater includes a housing disposed within the water tank and a burner disposed within the housing; the housing includes a flat shell and an upper convex shell disposed at the upper end of the flat shell and communicating with the flat shell; the upper convex shell is located near the back of the cabinet; wherein, at least one heating pipe is disposed within the flat shell, and both ends of the heating pipe are respectively connected to the water tank; at least one first exhaust pipe is disposed at the upper end of the flat shell; both ends of the first exhaust pipe are respectively connected to the inner top of the flat shell and the front part of the upper convex shell; at least one second exhaust pipe is disposed at the inner top of the upper convex shell, and the second exhaust pipe extends from the upper end of the cabinet.

[0008] Specifically, there are four of each of the heating pipes, the first exhaust pipe, and the second exhaust pipe; the opening of the first exhaust pipe located at the top of the flat shell is between the two heating pipes near the front of the cabinet.

[0009] Optionally, the heater is an electric heater; the heater includes a spiral heating tube disposed at the bottom of the water tank.

[0010] Furthermore, mounting seats are respectively provided at both ends of each of the vertical side strips on the inner wall of the cabinet; insert rods are respectively slidably connected to both ends of the vertical side strips; through holes are provided longitudinally on the mounting seats; the end of the insert rod can be selectively inserted into the through hole; the rotation axis of the bracket is coaxial with the insert rod.

[0011] When the insert rod is located in the through hole, the bracket is engaged with the inner wall of the cabinet, and the insert rod can also serve as the rotation axis of the bracket; the through hole can also prevent food residue from accumulating in the channel and can be washed away by water.

[0012] Specifically, a support rod is horizontally arranged in the middle of the insertion rod; two L-shaped grooves are provided on the vertical side strip, which are respectively slidably connected to the corresponding support rods; the L-shaped groove includes a vertical sliding groove arranged longitudinally and a circumferential groove arranged horizontally and communicating with the end of the vertical sliding groove; the circumferential groove is located on the side of the vertical sliding groove close to the adjacent mounting base.

[0013] When the support rod is located in the vertical sliding groove, the support rod can slide longitudinally; when the support rod is located in the circumferential groove, the support rod is inserted into the through hole and cannot slide longitudinally, thus ensuring the installation strength of the bracket and preventing loosening.

[0014] Furthermore, the tray track includes a base plate, two right-angled curved plates respectively disposed at the upper and lower ends of the base plate, and two pleated edges respectively disposed at the ends of the right-angled curved plates; the two right-angled curved plates are located on the same side of the base plate; wherein, the width of the upper right-angled curved plate is smaller than the width of the lower right-angled curved plate; the end of the upper right-angled curved plate is flush with the side of the vertical strip facing the middle of the cabinet; the end of the lower right-angled curved plate extends towards the middle of the cabinet.

[0015] Specifically, the vertical strip is provided with multiple slots for installing the tray track; the inner wall of the cabinet is flat, and there is a gap between the inner wall of the cabinet and the adjacent slots, so that the ventilation gap is formed between the tray track and the inner wall of the cabinet.

[0016] The upper right-angled plate provides guidance during the insertion of the pallet into the bracket; the lower right-angled plate provides support for the pallet; and the pleated edge increases structural strength; the pallet track is formed by sheet metal bending, which is simple to process and low in cost; the insertion slot also improves the support strength of the vertical strip for the pallet track, thereby improving the structural strength of the bracket, and the whole is easy to produce and assemble, which is conducive to large-scale production and manufacturing.

[0017] Preferably, the lower end of the cabinet is provided with four support legs; the height of the support legs can be adjusted.

[0018] Preferably, a water level sensor is installed in the water tank; the water level sensor is electrically connected to the burner; the burner cannot be ignited when there is no water in the water tank; a smoke collection hood connected to the second exhaust pipe is installed at the upper end of the cabinet; the smoke collection hood is a horizontally arranged tubular structure; and multiple linearly arranged slots are provided on the upper part of the inner wall of the smoke collection hood.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. There is a ventilation gap between the rack and the inner wall of the cabinet. Steam at the bottom of the cabinet can quickly flow upward through the ventilation gap, so that the food on each layer of the rack can be heated evenly, shortening the steaming time and improving the steaming quality.

[0021] 2. The bracket can rotate relative to the cabinet to open the ventilation gaps, making it easier to clean the ventilation gaps and tray tracks, preventing food residue and steam residue from adhering, and improving hygiene and cleanliness; the insert can be used as a pivot or as a locking device to the cabinet, and can also be easily removed to perform deep cleaning of the cabinet.

[0022] 3. The casing of the gas heater is equipped with heat-receiving pipes to increase the heating area of ​​the water in the water tank and improve the heating speed. At the same time, the first and second exhaust pipes of the burner also pass through the water tank and the cabinet respectively, using the heat carried by the exhaust gas generated by combustion to reheat the water and steam, thereby improving energy utilization and energy saving. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of the present utility model (cabinet door open);

[0024] Figure 2 , Figure 3 This is a schematic diagram of the structure of the end of the vertical strip of this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of the tray track of this utility model;

[0026] Figure 5 This is a schematic diagram of the mounting base of this utility model;

[0027] Figure 6 This is a schematic diagram of the front structure of the cover of this utility model;

[0028] Figure 7 This is a schematic diagram of the back structure of the cover of this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the smoke collection hood of this utility model;

[0030] Figure 9 This is a structural schematic diagram of the present utility model (cabinet door closed).

[0031] In the diagram: 1. Cabinet body; 11. Support leg; 12. Mounting base; 121. Through hole; 13. Water sink; 2. Bracket; 21. Vertical edge strip; 211. Insertion slot; 212. Vertical sliding groove; 213. Circumferential groove; 22. Tray track; 221. Base plate; 222. Right angle curved plate; 223. Folded edge; 23. Insert rod; 231. Support rod; 24. Ventilation slot; 3. Heater; 31. Cover; 311. Flat shell; 312. Upper convex shell; 32. Heating pipe; 33. First exhaust pipe; 34. Second exhaust pipe; 4. Smoke hood; 41. Groove opening; 5. Cabinet door; 51. Handrail; 52. Pressure gauge; 6. Pressure roller. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0033] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] See Figures 1-9 An energy-saving commercial steam oven with uniform heating includes a cabinet 1, two brackets 2 respectively installed on the left and right inner walls of the cabinet 1, a water tank 13 installed at the bottom of the cabinet 1, and a heater 3 installed at the bottom of the water tank 13.

[0037] The bracket 2 includes two longitudinally arranged vertical strips 21 and a plurality of horizontally arranged pallet tracks 22 for placing pallets between the two vertical strips 21; each pallet track 22 is linearly and uniformly arranged along the length direction of the vertical strips 21; and each pallet track 22 is provided with a ventilation gap 24 between it and the inner wall adjacent to the cabinet 1.

[0038] Mounting bases 12 are respectively provided at the upper and lower ends of each of the vertical side strips 21 on the inner wall of the cabinet 1; insert rods 23 are respectively slidably connected to the two ends of the vertical side strips 21; through holes 121 are longitudinally provided on the mounting bases 12; the end of the insert rod 23 can be selectively inserted into the through hole 121; when the insert rod 23 is located in the through hole 121, the bracket 2 is engaged with the inner wall of the cabinet 1, and the insert rod 23 can also serve as the rotation axis of the bracket 2.

[0039] A support rod 231 is horizontally arranged in the middle of the insertion rod 23; two L-shaped grooves are provided on the vertical side strip 21, which are respectively slidably connected to the corresponding support rods 231; the L-shaped groove includes a vertical sliding groove 212 arranged longitudinally and a circumferential groove 213 arranged horizontally and communicating with the end of the vertical sliding groove 212; the circumferential groove 213 is located on the side of the vertical sliding groove 212 close to the adjacent mounting base 12.

[0040] The tray track 22 includes a base plate 221, two right-angled curved plates 222 respectively disposed at the upper and lower ends of the base plate 221, and two pleated edges 223 respectively disposed at the ends of the right-angled curved plates 222; the two right-angled curved plates 222 are located on the same side of the base plate 221; the pleated edges 223 are located on the side of the right-angled curved plates 222 away from the base plate 221.

[0041] The width of the upper right-angled plate 222 is smaller than the width of the lower right-angled plate 222; the end of the upper right-angled plate 222 is flush with the side of the vertical strip 21 facing the middle of the cabinet 1; the end of the lower right-angled plate 222 extends towards the middle of the cabinet 1. The vertical strip 21 has multiple slots 211 for installing the tray rail 22; the inner wall of the cabinet 1 is flat, and there is a gap between the inner wall of the cabinet 1 and the adjacent slots 211, forming a ventilation gap 24 between the tray rail 22 and the inner wall of the cabinet 1.

[0042] The heater 3 is a gas heater; the heater 3 includes a housing 31 disposed in the water tank 13 and a burner disposed in the housing 31; the housing 31 includes a flat shell 311 and an upper convex shell 312 disposed on the upper end of the flat shell 311 and communicating with the flat shell 311; the upper convex shell 312 is close to the back of the cabinet 1; four heating pipes 32 are disposed inside the flat shell 311, and the two ends of the heating pipes 32 are respectively connected to the water tank 13; four L-shaped first exhaust pipes 33 are disposed on the upper end of the flat shell 311; the two ends of the first exhaust pipes 33 are respectively connected to the inner top of the flat shell 311 and the front part of the upper convex shell 312; four second exhaust pipes 34 are disposed on the inner top of the upper convex shell 312, and the second exhaust pipes 34 extend from the upper end of the cabinet 1; the pipe opening of the first exhaust pipe 33 located on the inner top of the flat shell 311 is located between the two heating pipes 32 near the front part of the cabinet 1.

[0043] A water level sensor is installed in the water tank 13; the water level sensor is electrically connected to the burner; when there is no water in the water tank 13, the burner cannot be ignited; a smoke collection hood 4 connected to the second exhaust pipe 34 is installed at the upper end of the cabinet 1; the smoke collection hood 4 is a horizontally arranged tubular structure; a plurality of linearly and evenly arranged slots 41 are provided on the upper part of the inner wall of the smoke collection hood 4.

[0044] The heater 3 is an electric heater; the heater 3 includes a spiral heating tube disposed at the bottom of the water tank 13.

[0045] The cabinet body 1 is provided with four support legs 11 at the lower end; the height of the support legs 11 is adjustable; the cabinet body 1 is provided with a cabinet door 5 at the front end; two pressure rollers 6 are provided on both sides of the cabinet door 5; a pressure gauge 52 is provided in the middle of the front end of the cabinet door 5; and a handrail 51 is provided in the front end of the cabinet door 5.

[0046] A float valve is installed inside the water tank 13; a drain valve is installed at the bottom of the water tank 13.

[0047] Operating Procedure: Heater 3 heats the water in water tank 13 to generate steam. The steam flows upward rapidly through vent 24, evenly distributing it across the trays on the support 2 to steam the food. The gas heater heats the housing 31, particularly the heating pipe 32, heating the water in water tank 13 located within the heating pipe 32, resulting in a larger heating area. Part of the exhaust gas from gas combustion enters the first exhaust pipe 33, which transfers heat to the water in water tank 13. The exhaust gas then enters the second exhaust pipe 34. The remaining exhaust gas from gas combustion enters the second exhaust pipe 34 and is discharged outwards. The heat absorbed by the exhaust gas in the second exhaust pipe 34 is transferred to the steam in cabinet 1, further heating the steam.

[0048] Cleaning procedure: Rotate the two support rods 231 on one of the vertical side strips 21 to allow the support rods 231 to enter the vertical sliding groove 212. Then, move the support rods 231 to disengage the insertion rod 23 from the through hole 121. Rotate the bracket 2 to open the inflation seam 24, allowing cleaning of the left and right side walls of the cabinet 1 and the back of the tray track 22, i.e., cleaning the inflation seam 24. Finally, rotate the bracket 2 back to its original position, move the support rods 231 to allow the insertion rod 23 to enter the through hole 121, and then rotate the support rods 231 to enter the circumferential groove 213, restricting the movement of the insertion rod 23, i.e., restricting the rotation of the bracket 2.

[0049] In addition, by sliding the inserts 23 on the two vertical strips 21 of the bracket 2 so that they are both away from the through hole 121, the bracket 2 can be removed from the cabinet 1 for easy deep cleaning.

[0050] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An energy-saving commercial steam oven with uniform heating, characterized in that: The device includes a cabinet, two brackets respectively mounted on the inner wall of the cabinet, a water tank located at the bottom of the cabinet, and a heater located at the bottom of the water tank. Each bracket includes two longitudinally arranged vertical strips and multiple horizontally arranged tray tracks for placing trays between the two vertical strips. Each tray track is arranged linearly and evenly along the longitudinal direction. Each tray track has a ventilation gap between itself and the inner wall of the cabinet. One of the vertical strips of the bracket is rotatably connected to the inner wall of the cabinet, and the other vertical strip can be selectively engaged with the inner wall of the cabinet.

2. The commercial steam oven as described in claim 1, characterized in that: The heater is a gas heater; the heater includes a housing disposed in the water tank and a burner disposed in the housing; the housing includes a flat shell and an upper convex shell disposed on the upper end of the flat shell and communicating with the flat shell; the upper convex shell is close to the back of the cabinet; wherein, at least one heating pipe is disposed in the flat shell, and the two ends of the heating pipe are respectively connected to the water tank; at least one first exhaust pipe is disposed at the upper end of the flat shell; the two ends of the first exhaust pipe are respectively connected to the inner top of the flat shell and the front part of the upper convex shell; at least one second exhaust pipe is disposed at the inner top of the upper convex shell, and the second exhaust pipe extends from the upper end of the cabinet.

3. The commercial steam oven as described in claim 2, characterized in that: There are four of each of the following: the heating pipe, the first exhaust pipe, and the second exhaust pipe; the opening of the first exhaust pipe located at the top of the flat shell is between the two heating pipes near the front of the cabinet.

4. The commercial steam oven as described in claim 1, characterized in that: The heater is an electric heater; the heater includes a spiral heating tube disposed at the bottom of the water tank.

5. The commercial steam oven as described in any one of claims 1-4, characterized in that: Mounting seats are respectively provided at both ends of each of the vertical side strips on the inner wall of the cabinet; insert rods are slidably connected to both ends of each vertical side strip; through holes are provided longitudinally on the mounting seats; the ends of the insert rods can be selectively inserted into the through holes; the rotation axis of the bracket is coaxial with the insert rods.

6. The commercial steam oven as described in claim 5, characterized in that: A support rod is horizontally arranged in the middle of the insertion rod; two L-shaped grooves are provided on the vertical side strip, which are respectively slidably connected to the corresponding support rods; the L-shaped groove includes a vertical sliding groove arranged longitudinally and a circumferential groove arranged horizontally and communicating with the end of the vertical sliding groove; the circumferential groove is located on the side of the vertical sliding groove close to the adjacent mounting base.

7. The commercial steam oven as described in any one of claims 1-4, characterized in that: The tray track includes a base plate, two right-angled curved plates respectively disposed at the upper and lower ends of the base plate, and two pleated edges respectively disposed at the ends of the right-angled curved plates; the two right-angled curved plates are located on the same side of the base plate; wherein, the width of the upper right-angled curved plate is smaller than the width of the lower right-angled curved plate; the end of the upper right-angled curved plate is flush with the side of the vertical strip facing the middle of the cabinet; the end of the lower right-angled curved plate extends towards the middle of the cabinet.

8. The commercial steam oven as described in claim 7, characterized in that: The vertical strip has multiple slots for installing the tray track; the inner wall of the cabinet is flat, and there is a gap between the inner wall of the cabinet and the adjacent slots, so that the ventilation gap is formed between the tray track and the inner wall of the cabinet.

9. The commercial steam oven as described in any one of claims 1-4, characterized in that: The cabinet is equipped with four legs at the bottom; the height of the legs is adjustable.

10. The commercial steam oven as described in any one of claims 2-3, characterized in that: A water level sensor is installed inside the water tank; the water level sensor is electrically connected to the burner; a smoke collection hood connected to the second exhaust pipe is installed at the upper end of the cabinet; the smoke collection hood is a horizontally arranged tubular structure; and multiple linearly arranged slots are provided on the upper part of the inner wall of the smoke collection hood.

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