A regenerative oven

Abstract

A kind of reheat box, including box, box cover, hinged part, screw rod, first connecting part, second connecting part, resting part, tray, pressure relief device, manual pressure relief valve, steam outlet, pressure gauge, steam inlet, control panel, communication interface;Wherein box cover is hinged with box cover by hinged part, the second connecting part is provided on the box, the first connecting part is provided on the box cover, the screw rod can pass through first connecting part, second connecting part to connect box cover and box;Resting part is provided in the box, and the tray can be placed above resting part.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of high-mobility food service vehicles, in particular to a reheating oven. BACKGROUND

[0002] The reheating oven is one of the core equipment of the high-mobility food service vehicle. The reheating oven usually has two use modes: vehicle-mounted use mode and backpack use mode. From the perspective of use, it is divided into main food processing and side food reheating. From the perspective of use area, it is divided into general type and high plateau type. In order to ensure the backpack use of the reheating oven, the design principle of the reheating oven is good environmental adaptability, good air tightness, etc.

[0003] CN220917217U mentions a reheating oven, but in actual engineering practice, the following problems exist:

[0004] 1. The reheating oven of the prior art is provided with a steam inlet and outlet, a pressure relief device, a pressure gauge, etc. When the internal steam pressure is too high, the pressure relief device is used for pressure relief.

[0005] However, since the high-mobility food service vehicle often works in harsh outdoor environments and is long-term outdoor work, some parts will be more eroded, resulting in a decrease in service life. For example, the pressure relief valve is generally opened and closed by a spring, and the spring is easily damaged by wind and rain, resulting in the undesired opening of the pressure relief valve when the internal pressure of the reheating oven does not meet the standard. The working environment and tasks of the high-mobility food service vehicle determine that the maintenance is difficult.

[0006] Using a two-stage pressure relief double-spring double-insurance method may solve the problem, but the effect is limited because both springs are exposed to harsh environments. If one performance decreases, the other performance also has a high probability of decreasing, which is not a foolproof solution.

[0007] 2. The pressure relief pipeline of the reheating oven of the prior art often includes a horizontal section and a vertical section. The pressure relief structure is usually arranged in the vertical section, but the horizontal section is easy to accumulate impurities (such as some food falling or entering the oven in harsh environments), which is not easy to clean after long-term accumulation.

[0008] 3. The pressure relief device of the prior art lacks adjustment function for the opening and closing of the pressure relief hole. Some means can be used to achieve closure, but the means is complex.

[0009] 4. The pressure relief device of the prior art lacks a means for quick maintenance and replacement.

[0010] 5. The pressure relief device of the prior art is difficult to form two switchable pressure relief paths in a limited space. SUMMARY

[0011] In order to overcome the above problems, the present application proposes a solution that simultaneously solves the above multiple problems.

[0012] The technical scheme adopted by the present application to solve its technical problems is: a reheating box, comprising a box body, a box cover, a hinge part, a screw rod, a first connecting part, a second connecting part, a resting part, a tray, a pressure relief device, a manual pressure relief valve, a steam outlet, a pressure gauge, a steam inlet, a control panel, and a communication interface; wherein the box cover is hingedly connected to the box body through the hinge part, the second connecting part is arranged on the box body, the first connecting part is arranged on the box cover, and the screw rod can pass through the first connecting part and the second connecting part to connect the box cover and the box body; the resting part is arranged in the box body, the tray can be placed above the resting part, and the pressure relief device, the manual pressure relief valve, the steam outlet, the pressure gauge, the steam inlet, the control panel, and the communication interface are arranged on the box cover; the manual pressure relief valve is a ball valve, the control panel is used for inputting control instructions, and the communication interface can be connected to a data line;

[0013] The pressure relief device comprises a pipe body, a vertical plate, a horizontal plate, a column, a fixing ring, a rotating ring, a box, a cover, a retaining ring, a second spring, a piston plate, a first limiting protrusion, a second limiting protrusion, a dial block, a first spring, a support plate, and a closing plate; the pipe body comprises a vertical segment and a horizontal segment, an arc surface is arranged on the pipe body between the vertical segment and the horizontal segment, a vertical cavity is arranged in the vertical segment, a horizontal cavity is arranged in the horizontal segment, and an intermediate cavity is arranged between the vertical cavity and the horizontal cavity; a first through hole is arranged on the vertical plate, and a second through hole is arranged on the horizontal plate;

[0014] An inner end of the horizontal cavity is provided with the vertical plate, one end of the first spring is connected to the vertical plate, the other end of the first spring is connected to the closing plate, a lower end of the closing plate is connected to the support plate, an outer end of the horizontal cavity is provided with an inlet of the pipe body, and the closing plate can block or separate from the inlet through sliding;

[0015] A lower end of the vertical cavity is provided with the horizontal plate, the column is supported above the horizontal plate, a cavity is arranged in the column, a recess is arranged at an upper end of the column, the fixing ring is fixed on a cavity wall of the vertical cavity, the rotating ring is arranged above the fixing ring, a first hole is arranged on the fixing ring, a second hole is arranged on the rotating ring, and the dial block is arranged above the rotating ring; the dial block comprises a flat surface;

[0016] The box is provided with the piston plate, the second spring, the first limiting protrusion, and the second limiting protrusion, an opening is arranged on a peripheral wall of the box, the first limiting protrusion and the second limiting protrusion are located at upper and lower ends of the opening, the piston plate can move up and down between the first limiting protrusion and the second limiting protrusion, and one end of the second spring is connected to the piston plate;

[0017] The outer wall of the box is provided with a first threaded part and a second threaded part along a vertical direction, the inner wall of the fixing ring is provided with a threaded segment, the first threaded part is engaged with the threaded segment in the first state, the opening of the box faces upward, and the cover is arranged on the opening of the box; the opening is shielded by the inner wall of the fixing ring; the upper end of the column abuts against the box; in the second state, the cover is removed, the second threaded part is engaged with the threaded segment, the other end of the second spring is placed into the groove, a gap exists between the column and the peripheral wall of the box, and the opening is located above the rotating ring.

[0018] Preferably, the lower portion of the cover is provided with a retaining ring.

[0019] Preferably, in the first state, the retaining ring retains the other end of the second spring.

[0020] Further, the first threaded part and the second threaded part are located at the upper and lower ends of the opening.

[0021] Further, the second threaded part is arranged close to the opening of the box.

[0022] Preferably, the upper end of the pipe body is provided with a plug.

[0023] Preferably, the plug is provided with a gas hole.

[0024] Preferably, the vertical segment comprises an upper segment and a lower segment.

[0025] Preferably, the inner wall of the upper segment is threadedly connected with the outer wall of the lower segment.

[0026] Further, when the piston plate is located above the opening, the inside of the box is in communication with the outside.

[0027] The present application has the following beneficial effects:

[0028] The first point in the background art is also provided with a common spring and a standby spring, but the standby spring is protected by a box from erosion, the opening of the box is closed by the fixing ring in a normal state, and therefore the protection effect is relatively good; when the performance of the common spring decreases, the pressure relief valve is opened when the pressure table value of the reheating box is insufficient, and at this time, the standby spring can be used to control the opening pressure of the pressure relief valve.

[0029] The second point in the background art is that the common spring is arranged on the horizontal segment of the pressure relief pipeline, and the vertical segment is provided with a constant passage, so that most of the impurities are blocked outside the pressure relief pipeline and retained in the reheating box, and although there are impurities in the reheating box, the space is large and easy to clean.

[0030] The third point of the present application is that the fixed ring and the rotating ring are used to switch the flow-through mode and the closed mode, the fixed ring and the rotating ring are provided with through holes, the rotating ring is provided with a knob on the upper surface, one side of the knob is arc-shaped and the other side is flat, and the knob is easy to be pushed, so that the switching function can be realized by simple means.

[0031] The fourth point of the present application is that a threaded section is arranged on the lower section of the inner surface of the fixed ring, a threaded section is arranged on each of the upper and lower ends of the box, the two threaded sections can be threadedly connected with the threaded section, so that the box opening can be connected with the fixed ring regardless of whether the opening is upward or downward, when the box opening is upward, the opening is provided with a cover and the inside is sealed with a spring, and when the box opening is downward, the spring is inserted into the groove prepared in advance to realize fixation.

[0032] The fifth point of the present application is that the box is provided with a piston plate and upper and lower limiting protrusions, the first passage of the vertical section is provided by the fixed ring and the rotating ring, and the second passage is provided by the gap between the fixed column and the fixed ring and the opening on the box wall. BRIEF DESCRIPTION OF DRAWINGS

[0033] The present application is further described below in combination with the drawings and examples.

[0034] Figure 1 is a front three-dimensional view of the reheating box of the present application.

[0035] Figure 2 is a flow path sectional view of the pressure relief device when the present application is in normal operation.

[0036] Figure 3 is a sectional view when the standby pressure relief structure of the present application is opened and not in pressure relief state.

[0037] Figure 4 is a sectional view when the standby pressure relief structure of the present application is opened and in pressure relief state.

[0038] Figure 5 is a schematic view of the rotating ring of the present application.

[0039] Figure 6 is a back three-dimensional view of the reheating box of the present application.

[0040] Figure 7 is an internal structure view of the reheating box of the present application

[0041] Figure 8 is a schematic view of the tray of the reheating box of the present application

[0042] In the drawings, the reference signs are as follows:

[0043] 1. Pressure relief device; 2. Manual pressure relief valve; 3. Steam outlet; 4. Pressure gauge; 5. Steam inlet; 6. Control panel; 7. Communication interface; 8. Vertical section; 9. Horizontal section; 10. Arc surface; 11. Horizontal cavity; 12. Intermediate cavity; 13. Vertical cavity; 14. Inlet; 15. Vertical plate; 16. First through hole; 17. Horizontal plate; 18. Second through hole; 19. Column; 20. Groove; 21. Retaining ring; 22. First hole; 23. Rotating Ring; 24. Second hole; 25. Box; 26. Cover; 27. Retaining ring; 28. Second spring; 29. ​​Piston plate; 30. First limiting protrusion; 31. Second limiting protrusion; 32. Shift block; 33. Gap; 34. First spring; 35. Support plate; 36. Closing plate; 37. Box body; 38. Box cover; 39. Hinge; 40. Screw; 41. Shelf; 42. Tray; 43. First connecting part; 44. Second connecting part. DETAILED DESCRIPTION

[0044] As shown in the figure: a reheating box, comprising a box body, a box cover, a hinged portion, a screw, a first connecting portion, a second connecting portion, a shelf portion, a tray, a pressure relief device, a manual pressure relief valve, a steam outlet, a pressure gauge, a steam inlet, a control panel, and a communication interface; wherein the box cover is hingedly connected to the box body through the hinged portion, the box body is provided with a second connecting portion, the box cover is provided with a first connecting portion, the screw can pass through the first connecting portion and the second connecting portion to connect the box cover and the box body; a shelf portion is provided in the box body, the tray can be placed above the shelf portion, the box cover is provided with a pressure relief device, a manual pressure relief valve, a steam outlet, a pressure gauge, a steam inlet, a control panel, and a communication interface, wherein the manual pressure relief valve is a ball valve, the control panel is used to input control instructions, and the communication interface can be connected to a data cable;

[0045] The pressure relief device includes a tube body, a vertical plate, a horizontal plate, a column, a fixing ring, a rotating ring, a box, a cover, a retaining ring, a second spring, a piston plate, a first limiting protrusion, a second limiting protrusion, a shift block, a first spring, a support plate, and a closing plate. The tube body includes a vertical section and a horizontal section. An arc surface is provided on the tube body between the vertical section and the horizontal section. A vertical cavity is provided in the vertical section, a horizontal cavity is provided in the horizontal section, and an intermediate cavity is provided between the vertical cavity and the horizontal cavity. A first through hole is provided on the vertical plate, and a second through hole is provided on the horizontal plate.

[0046] The vertical plate is provided at the inner end of the horizontal cavity, the vertical plate is connected to one end of the first spring, the other end of the first spring is connected to the closing plate, the lower end of the closing plate is connected to the support plate, and the outer end of the horizontal cavity is provided with an inlet of the tube body, and the closing plate can be slid to block or detach from the inlet;

[0047] The lower end of the vertical cavity is provided with the horizontal plate, the horizontal plate supports the column above, the column is provided with a cavity, the upper end of the column is provided with a groove, the cavity wall of the vertical cavity is fixed with the fixed ring, the upper end of the fixed ring is provided with the rotating ring, the fixed ring is provided with a first hole, the rotating ring is provided with a second hole, the upper end of the rotating ring is provided with the shift block, the shift block comprises a plane;

[0048] The box is provided with a piston plate, a second spring, a first limiting protrusion and a second limiting protrusion, the peripheral wall of the box is provided with an opening, the first limiting protrusion and the second limiting protrusion are located at the upper and lower ends of the opening, the piston plate can move up and down between the first limiting protrusion and the second limiting protrusion, and one end of the second spring is connected with the piston plate.

[0049] The outer wall of the box is provided with a first threaded part and a second threaded part in the vertical direction, the inner wall of the fixed ring is provided with a threaded section, the first threaded part is engaged with the threaded section in the first state, the opening of the box faces upward, and the cover is arranged on the opening of the box; the opening is shielded by the inner wall of the fixed ring; the upper end of the column abuts against the box; in the second state, the cover is removed, the second threaded part is engaged with the threaded section, the other end of the second spring is placed into the groove, there is a gap between the column and the peripheral wall of the box, and the opening is located above the rotating ring.

[0050] As shown in the drawings: the lower end of the cover is provided with a retaining ring. In the first state, the retaining ring retains the other end of the second spring. The first threaded part and the second threaded part are located at the upper and lower ends of the opening. The second threaded part is arranged close to the opening of the box. The upper end of the pipe body is provided with a plug. The plug is provided with a gas hole. The vertical section comprises an upper section and a lower section. The inner wall of the upper section is threadedly connected with the outer wall of the lower section. When the piston plate is located above the opening, the inside of the box is in communication with the outside.

[0051] The above detailed description is for the specific description of the feasible embodiments of the application, and the embodiments are not used to limit the patent scope of the application. Any equivalent implementation or change without departing from the application shall be included in the patent scope of the application.

Claims

1. A reheating box, characterized in that: The box body comprises a box cover, a hinged portion, a screw, a first connection portion, a second connection portion, a shelf portion, a tray, a pressure relief device, a manual pressure relief valve, a steam outlet, a pressure gauge, a steam inlet, a control panel, and a communication interface; wherein the box cover is hingedly connected to the box body via the hinged portion, the box body is provided with a second connection portion, the box cover is provided with a first connection portion, and the screw can pass through the first connection portion and the second connection portion to connect the box cover and the box body; a shelf portion is provided in the box body, the tray can be placed above the shelf portion, the box cover is provided with a pressure relief device, a manual pressure relief valve, a steam outlet, a pressure gauge, a steam inlet, a control panel, and a communication interface, wherein the manual pressure relief valve is a ball valve, the control panel is used to input control instructions, and the communication interface can be connected to a data cable; The pressure relief device includes a tube body, a vertical plate, a horizontal plate, a column, a fixing ring, a rotating ring, a box, a cover, a retaining ring, a second spring, a piston plate, a first limiting protrusion, a second limiting protrusion, a shift block, a first spring, a support plate, and a closing plate. The tube body includes a vertical section and a horizontal section. An arc surface is provided on the tube body between the vertical section and the horizontal section. A vertical cavity is provided in the vertical section, a horizontal cavity is provided in the horizontal section, and an intermediate cavity is provided between the vertical cavity and the horizontal cavity. A first through hole is provided on the vertical plate, and a second through hole is provided on the horizontal plate. The vertical plate is provided at the inner end of the horizontal cavity, the vertical plate is connected to one end of the first spring, the other end of the first spring is connected to the closing plate, the lower end of the closing plate is connected to the support plate, and the outer end of the horizontal cavity is provided with an inlet of the tube body, and the closing plate can be slid to block or detach from the inlet; The lower end of the vertical cavity is provided with the horizontal plate, the column is supported above the horizontal plate, a cavity is provided in the column, a groove is provided at the upper end of the column, the fixing ring is fixed on the cavity wall of the vertical cavity, the rotating ring is provided above the fixing ring, the fixing ring is provided with a first hole, the rotating ring is provided with a second hole, the shift block is provided above the rotating ring, and the shift block includes a flat surface; The box is provided with a piston plate, a second spring, a first limiting protrusion, and a second limiting protrusion. An opening is provided on the peripheral wall of the box. The first limiting protrusion and the second limiting protrusion are located at the upper and lower ends of the opening. The piston plate can move up and down between the first limiting protrusion and the second limiting protrusion. One end of the second spring is connected to the piston plate. The outer wall of the box is provided with a first threaded portion and a second threaded portion along the vertical direction, and the inner wall of the fixing ring is provided with a threaded segment. In the first state, the first threaded portion is engaged with the threaded segment, the box opening is facing upward, and the cover is provided on the opening of the box; the opening is blocked by the inner wall of the fixing ring; the upper end of the column is pressed against the box; in the second state, the cover is removed, the second threaded portion is engaged with the threaded segment, and the other end of the second spring is placed in the groove. There is a gap between the column and the peripheral wall of the box, and the opening is located above the rotating ring.

2. A reheating box according to claim 1, characterized in that: A retaining ring is provided below the cover.

3. A heating box according to claim 2, characterized in that: The retaining ring retains the other end of the second spring in the first state.

4. A reheating box according to claim 1, characterized in that: The first threaded portion and the second threaded portion are located at the upper and lower ends of the opening.

5. A reheating box according to claim 4, characterized in that: The second threaded portion is disposed proximate to the opening of the box.

6. The reheating box according to claim 1, characterized in that: The upper end of the tube body is provided with a plug.

7. A reheating box according to claim 6, characterized in that: The plug is provided with air holes.

8. The reheating box according to claim 1, characterized in that: The vertical section includes an upper section and a lower section.

9. The reheating box according to claim 8, characterized in that: The inner wall of the upper section is threadedly connected to the outer wall of the lower section.

10. The reheating box according to claim 1, characterized in that: When the piston plate is located above the opening, the interior of the box is in communication with the outside.

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