Steamer with water shortage protection structure

Abstract

This utility model discloses a steamer with a water shortage protection structure, relating to the field of steamer technology. The steamer includes a heating furnace located inside its lower end, a steaming chamber in the middle of its upper surface, a water storage chamber outside the steaming chamber, a water filling assembly between the water storage chamber and the steaming chamber, a float assembly inside the water storage chamber, and several self-locking casters on the lower surface of the steamer. The float assembly includes a guide rod, which is fixedly connected to one side of the water storage chamber. A guide groove is provided on one side of the guide rod, and a slider is slidably disposed inside the guide groove. This utility model, through integrated mechanical and electronic control design, effectively solves the problems of traditional steamers relying on manual water level monitoring and the high risk of dry burning.

Description

Technical Field

[0001] This utility model relates to the field of steamed bun oven technology, specifically a steamed bun oven with a water shortage protection structure. Background Technology

[0002] A steam oven can lock in the moisture of food, preserving its original taste; it does not produce other harmful substances, maintaining the original state of the food. The steam temperature in the steam oven is uniform, locking in the moisture and nutrients of the food and ensuring its taste. It is very suitable for steaming non-meat foods such as corn, dumplings, and buns. However, steam ovens still have some drawbacks. For example, during the steaming process, it is necessary to manually monitor the water level in the water tank and add water regularly. If water is forgotten to be added, the heating temperature will continuously heat the water tank. Once the water in the tank evaporates, it is very easy to cause dry burning, which can lead to safety accidents.

[0003] CN221769763U discloses an automatic water-filling steamer. "The top of the machine body has a tabletop, the center of which has a steaming opening. A steaming chamber is opened downwards above the steaming opening, and a steaming tray is placed above the steaming chamber. A water-measuring chamber is located on one side of the bottom of the steaming tray. A water-measuring cavity is vertically opened inside the water-measuring chamber, and a float is movably installed inside the water-measuring cavity. Water inlet chambers are located on both sides of the water-measuring cavity." In this utility model, the user can automatically control the water-filling plate through the water-measuring chamber, thus automatically adding water to the inside of the steaming chamber to maintain a certain water depth. However, there is no corresponding monitoring or water-filling structure for the water level in the water storage chamber. This means that once the water in the water storage chamber boils dry, the heater will continue to burn dry, potentially leading to an accident.

[0004] Based on this, a steamer with a water shortage protection structure is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a steamer with a water shortage protection structure to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A steamer with a water shortage protection structure includes a steamer, a heating furnace is provided inside the lower end of the steamer, a steaming chamber is provided in the middle of the upper surface of the steamer, a water storage chamber is provided outside the steaming chamber, a water filling component is provided between the water storage chamber and the steaming chamber, a float ball component is provided inside the water storage chamber, and a number of self-locking casters are provided on the lower surface of the steamer.

[0008] The float assembly includes a guide rod, which is fixedly connected to one side of the water storage cavity. A guide groove is provided on one side of the guide rod, and a slider is slidably arranged inside the guide groove. A float is fixedly connected to the middle of one end of the slider. A permanent magnet is provided on both the upper and lower sides of one end of the slider. An induction plate is installed on the upper end and the middle of one side of the water storage cavity, and one end of the slider is located between the two induction plates.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: a Hall effect sensor is provided inside each of the two adjacent sides of the induction plates and is magnetically induced by the corresponding permanent magnet.

[0011] In one alternative: the water supply assembly includes a float chute, which is located on one side of the middle of the steaming chamber, and an outer float and an inner float are respectively provided on both sides of the float chute. A sliding plate is fixedly connected between the outer float and the inner float.

[0012] In one alternative: the weight of the inner float is greater than the weight of the outer float and the maximum buoyancy generated.

[0013] In one alternative: a water inlet is provided at the upper end of the water storage chamber, and a solenoid valve is provided inside the water inlet, the solenoid valve being electrically connected to a corresponding Hall effect sensor.

[0014] In one alternative: the lower sensing plate is horizontally aligned with the lower end of the floating plate chute.

[0015] In one alternative: a limit component is provided at the upper end of the steamer.

[0016] In one alternative: the limiting component includes a limiting slide groove, and a plurality of limiting slide grooves are arranged in an array on the upper surface of the steaming oven. A limiting plate is slidably arranged on the inner side of each limiting slide groove. A spring is fixedly connected to one side of each limiting plate and is fixedly connected to the inner side of the steaming oven through the spring. A plurality of drain outlets are provided below the spring.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model effectively solves the problems of traditional steamed bun ovens relying on manual water level monitoring and high risk of dry burning through integrated mechanical and electronic control design. By using a float assembly set in the water storage chamber, the rise and fall of the float with the water level changes drive the slider and its permanent magnet to move precisely along the guide groove of the guide rod. When the water level drops to a dangerously low level, the lower permanent magnet approaches the Hall sensor in the lower induction plate to trigger a water shortage signal, which can directly open the solenoid valve to start adding water, fundamentally preventing dry burning accidents. When the water level is normal, the upper permanent magnet approaches the Hall sensor in the upper induction plate to send a signal to stop adding water, realizing the monitoring and protection of the water level in the storage chamber.

[0019] 2. This utility model uses a spring in the limiting component to push the limiting plate to slide in the limiting groove, which can adaptively fix steamers of different sizes, improving the versatility of the equipment. The drain below it can ensure that the condensate on the surface of the steamer flows smoothly back into the steaming chamber, keeping the table surface dry. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the limiting component structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the overall internal structure of this utility model.

[0023] Figure 4 This is a schematic diagram of the float assembly structure of this utility model.

[0024] Figure 5 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0025] Figure label annotations: 1. Steamer; 2. Self-locking caster wheel; 3. Steaming chamber; 4. Water inlet; 5. Handle; 6. Limiting groove; 7. Drain outlet; 8. Spring; 9. Limiting plate; 10. Water storage chamber; 11. Outer float plate; 12. Slide plate; 13. Inner float plate; 14. Float groove; 15. Guide rod; 16. Guide groove; 17. Sliding block; 18. Float ball; 19. Permanent magnet; 20. Induction plate; 21. Heating furnace. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In one embodiment, such as Figures 1-5As shown, a steamer with a water shortage protection structure includes a steamer 1, a heating furnace 21 is provided inside the lower end of the steamer 1, a steaming chamber 3 is provided in the middle of the upper surface of the steamer 1, a water storage chamber 10 is provided outside the steaming chamber 3, a water filling component is provided between the water storage chamber 10 and the steaming chamber 3, a float ball component is provided inside the water storage chamber 10, and a plurality of self-locking universal wheels 2 are provided on the lower surface of the steamer 1.

[0028] The float assembly includes a guide rod 15, which is fixedly connected to one side of the water storage cavity 10. A guide groove 16 is provided on one side of the guide rod 15, and a slider 17 is slidably arranged inside the guide groove 16. A float 18 is fixedly connected to the middle of one end of the slider 17. A permanent magnet 19 is provided on both the upper and lower sides of one end of the slider 17. An induction plate 20 is installed on the upper end and the middle of one side of the water storage cavity 10, and one end of the slider 17 is located between the two induction plates 20.

[0029] In this embodiment, the water level change in the water storage chamber 10 drives the float 18 to move up and down. The float 18 drives the slider 17 to slide smoothly along the path defined by the guide groove 16 on the guide rod 15. The two permanent magnets 19 on the slider 17 move accordingly. When the water level is high, the upper permanent magnet 19 approaches the upper sensing plate 20. When the water level drops to a low level, the lower permanent magnet 19 approaches the lower sensing plate 20. The sensor inside the sensing plate 20 detects the approach of the corresponding permanent magnet 19, thereby converting the water level signal into an electrical signal output to control the opening and closing of the solenoid valve.

[0030] In one embodiment, such as Figure 4 As shown, each of the two adjacent sensing plates 20 is equipped with a Hall effect sensor and is magnetically induced by the corresponding permanent magnet 19. The Hall effect sensor embedded in each sensing plate 20 can sensitively detect changes in the magnetic field strength in its vicinity. The Hall effect sensor adopts a sealed encapsulation structure and has an electromagnetic shielding design, which can effectively resist water vapor, dust and electromagnetic interference in high temperature and high humidity environments, ensuring the stability and reliability of the detection signal. When the slider 17 moves and causes the permanent magnet 19 on it to enter the effective detection range of a certain Hall sensor, the sensor will output a level change signal. This signal is transmitted to the controller, thereby accurately determining whether the current water level has reached the high trigger point or dropped to the low alarm point, realizing non-contact liquid level detection with high reliability.

[0031] In one embodiment, such as Figure 5As shown, the water supply assembly includes a float chute 14, which is located on one side of the middle of the steaming chamber 3. An outer float 11 and an inner float 13 are respectively arranged on both sides of the float chute 14. A sliding plate 12 is fixedly connected between the outer float 11 and the inner float 13. An annular rubber sealing ring is provided at the contact points between the float chute 14 and the outer float 11 and inner float 13 to ensure a good seal at the connection, prevent water or steam leakage, and ensure accurate water level control. The float chute 14 is a channel connecting the steaming chamber 3 and the water storage chamber 10. The outer float 11 is exposed in the water of the water storage chamber 10 to sense its water pressure; the inner float 13 is located inside the steaming chamber 3. The sliding plate 12 rigidly connects the two, allowing them to move synchronously. This assembly automatically opens or closes this connecting channel by sensing the water level difference between the two chambers, realizing automatic water replenishment from the water storage chamber 10 to the steaming chamber 3.

[0032] In one embodiment, such as Figure 5 As shown, the weight of the inner float plate 13 is greater than the weight of the outer float plate 11 and the maximum buoyancy it generates. The weight of the inner float plate 13 is greater than the maximum buoyancy that the outer float plate 11 can generate in the water. Specifically, the weight of the inner float plate 13 is designed to be 1.2 to 1.5 times the maximum buoyancy of the outer float plate 11 in the water, so as to ensure that when the water level in the water storage chamber 10 is high, the downward pull on one side of the inner float plate 13 always dominates, which will cause the entire component to be in a sinking state, thereby opening the channel of the float plate slide 14 and ensuring that water will reliably enter the steam chamber 3.

[0033] In one embodiment, such as Figure 1 As shown, a water inlet 4 is provided at the upper end of the water storage chamber 10. A solenoid valve is provided inside the water inlet 4. The solenoid valve is electrically connected to a corresponding Hall effect sensor. The water inlet 4 is the inlet of the external water source. The solenoid valve inside is the actuator, responsible for opening or closing the water circuit. The control line of the solenoid valve is connected to the controller. When the water level in the water storage chamber 10 is too low, the float assembly triggers the low-level Hall sensor, and the controller sends a signal to open the solenoid valve and start adding water from the outside. When the water level rises and triggers the high-level Hall sensor, the controller sends a signal to close the solenoid valve and stop adding water, thereby realizing the automatic maintenance of the water level in the water storage chamber 10.

[0034] In one embodiment, such as Figure 3 As shown, the lower sensor plate 20 is level with the lower end of the float slide 14. Setting the installation height of the lower sensor plate 20 to be flush with the lower end of the float slide 14 means that the low water level alarm water level line defined by the float assembly is consistent with the water level line at which the water filling assembly can start automatic water replenishment. This alignment design ensures the coordination of system control: when the water level is low enough to trigger the water shortage protection, it is also the moment when the automatic water replenishment function needs to start working, ensuring the unity and reliability of system logic.

[0035] In one embodiment, such as Figure 2 As shown, the upper end of the steamer 1 is provided with a limiting component. The limiting component is installed on the top worktable of the steamer 1, and its main function is to adapt to and fix steamers of different shapes and sizes.

[0036] In one embodiment, such as Figure 2 As shown, the limiting component includes a limiting groove 6, which is arranged in an array on the upper surface of the steamer 1. A limiting plate 9 is slidably arranged inside each limiting groove 6. A spring 8 is fixedly connected to one side of each limiting plate 9 and is fixedly connected to the inside of the steamer 1 through the spring 8. Several drain outlets 7 are provided below the spring 8. A detachable stainless steel filter screen is provided at the inlet of the drain outlet 7 to prevent food residue or foreign objects from entering and causing blockage. At the same time, the drain outlet 7 adopts an inclined structure design with the inside higher than the outside to facilitate the rapid discharge of condensate. When the steamer is placed, the outer wall of the steamer will squeeze the limiting plate 9. The limiting plate 9 slides backward along the limiting groove 6 and compresses the spring 8. The rebound force accumulated by the spring 8 pushes the limiting plate 9 tightly against the outer wall of the steamer to form an adaptive fixation. After the steamer is removed, spring 8 pushes the limit plate 9 to reset; the drain 7 runs through the countertop, ensuring that water dripping or condensing on the surface of the steamer can be quickly drained back into the steaming chamber 3 below, keeping the work surface dry and clean, and avoiding water accumulation that could affect operation and hygiene.

[0037] The above embodiment discloses a steamer with a water shortage protection structure. In this structure, changes in the water level within the water storage chamber 10 drive a float 18 to move up and down. The float 18 then causes a slider 17 to slide smoothly along a path defined by a guide groove 16 on a guide rod 15. Two permanent magnets 19 on the slider 17 move accordingly. When the water level is high, the upper permanent magnet 19 approaches the upper induction plate 20; when the water level drops to a low level, the lower permanent magnet 19 approaches the lower induction plate 20. A sensor inside the induction plate 20 detects the approach of the corresponding permanent magnet 19, converting the water level signal into an electrical signal for controlling the opening and closing of a solenoid valve. The float plate groove 14 is a channel connecting the steaming chamber 3 and the water storage chamber 10. The outer float plate 11 is exposed to the water in the water storage chamber 10. The internal float 13 is located inside the steaming chamber 3, and the sliding plate 12 rigidly connects the two, allowing them to move synchronously. This component automatically opens or closes the connecting channel by sensing the water level difference between the two chambers, enabling automatic replenishment of water from the water storage chamber 10 to the steaming chamber 3. When the steamer is placed, the outer wall of the steamer will press against the limiting plate 9. The limiting plate 9 slides backward along the limiting groove 6 and compresses the spring 8. The rebound force accumulated by the spring 8 pushes the limiting plate 9 tightly against the outer wall of the steamer, forming an adaptive fixation. After the steamer is removed, the spring 8 pushes the limiting plate 9 to return to its original position. The drain outlet 7 penetrates the work surface, ensuring that water dripping or condensing on the surface of the steamer can be quickly drained back into the steaming chamber 3 below, keeping the work surface dry and clean, and preventing water accumulation from affecting operation and hygiene.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A steamer with a water shortage protection structure, comprising a steamer (1), wherein a heating furnace (21) is provided inside the lower end of the steamer (1), a steaming chamber (3) is provided in the middle of the upper surface of the steamer (1), a water storage chamber (10) is provided outside the steaming chamber (3), a water filling assembly is provided between the water storage chamber (10) and the steaming chamber (3), a float assembly is provided inside the water storage chamber (10), and a plurality of self-locking casters (2) are provided on the lower surface of the steamer (1); characterized in that The float assembly includes a guide rod (15), which is fixedly connected to one side of the water storage cavity (10). A guide groove (16) is provided on one side of the guide rod (15), and a slider (17) is slidably arranged inside the guide groove (16). A float (18) is fixedly connected to the middle of one end of the slider (17). A permanent magnet (19) is provided on both the upper and lower sides of one end of the slider (17). An induction plate (20) is installed on the upper end and the middle of one side of the water storage cavity (10), and one end of the slider (17) is located between the two induction plates (20).

2. The steamer oven with a water deficiency protection structure according to claim 1, characterized in that, Each of the two sensing plates (20) has a Hall effect sensor installed on an adjacent side and magnetically induction with the corresponding permanent magnet (19).

3. The steamer oven having a water deficiency protection structure according to claim 1, wherein, The water supply assembly includes a float chute (14), which is located on one side of the middle of the steaming chamber (3). An outer float plate (11) and an inner float plate (13) are respectively provided on both sides of the float chute (14). A sliding plate (12) is fixedly connected between the outer float plate (11) and the inner float plate (13).

4. The steamer oven having a water deficiency protection structure according to claim 3, wherein The weight of the inner float (13) is greater than the weight of the outer float (11) and the maximum buoyancy it generates.

5. The steamer oven having a water deficiency protection structure according to claim 1, wherein, The upper end of the water storage chamber (10) is provided with a water inlet (4), and an electromagnetic valve is provided inside the water inlet (4). The electromagnetic valve is electrically connected to the corresponding Hall effect sensor.

6. The steamer oven having a water deficiency protection structure according to claim 1, wherein, The lower end of the sensing plate (20) is horizontally aligned with the lower end of the floating plate groove (14).

7. The steamer oven having a water deficiency protection structure according to claim 1, wherein The upper end of the steamer (1) is equipped with a limit component.

8. The steamer oven having a water deficiency protection structure according to claim 7, wherein, The limiting component includes a limiting groove (6), and a plurality of limiting grooves (6) are arranged in an array on the upper surface of the steamer (1). A limiting plate (9) is slidably arranged inside each limiting groove (6). A spring (8) is fixedly connected to one side of each limiting plate (9) and is fixedly connected to the inside of the steamer (1) through the spring (8). A plurality of drain outlets (7) are opened below the spring (8).

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