Powder feeding device for bottom material frying pot

By designing a powder feeding device with a feeding hopper, negative pressure pipe, and return pipe in the base material frying pan, the problem of powder diffusion is solved, achieving the effects of environmental protection and convenient operation.

CN224477628UActive Publication Date: 2026-07-10CHONGQING FATTY TIANJIAO RONGXING FOOD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING FATTY TIANJIAO RONGXING FOOD CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Hot pot base powder is prone to spreading during the feeding process, which affects the working environment and endangers health.

Method used

A powder feeding device for a base material frying pan was designed, including a feeding hopper, a negative pressure pipe and a return pipe. The negative pressure port, the return pipe and the buffer section are used to reduce powder diffusion. Combined with an air filter and a cleaning water pipe, the sealing and cleanliness are ensured.

Benefits of technology

It effectively reduces powder diffusion, protects the working environment, reduces powder waste, and ensures simple and safe operation.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a powder feeding device of bottom material frying pan, including feeding hopper still includes negative pressure pipeline and back material pipe, the feeding port of feeding hopper upper end is equipped with the sealing cover, the upper end part of feeding hopper still is equipped with at least one negative pressure mouth, the back material pipe is connected with negative pressure mouth, back material pipe with negative pressure pipeline links to each other, negative pressure pipeline is used for linking to each other with negative pressure source, back material pipe includes buffer section and back material section, buffer section with the negative pressure mouth of feeding hopper links to each other, back material section is n -shaped structure, back material section with negative pressure pipeline links to each other. The utility model discloses simple structure reduces the influence of working environment, guarantees the health of staff.
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Description

Technical Field

[0001] This utility model belongs to the field of food processing technology, specifically relating to a powder feeding device for a base seasoning wok. Background Technology

[0002] Hot pot base is a product made by stir-frying various raw materials, including chili peppers, spices (star anise, Sichuan peppercorns, bay leaves), and seasonings (ginger slices, garlic cloves, scallions, etc.), in high-temperature oil. These raw materials are usually further processed into powder before being added to the wok to make the hot pot base. However, because these raw materials are processed into powder, the powder easily sprays out and diffuses into the air during the addition process, especially chili powder, which is a spicy substance, seriously affecting the working environment. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a powder feeding device for a base material frying pan, which is simple to implement, reduces the impact on the working environment, and ensures the health of workers.

[0004] The technical solution for the purpose of this utility model is:

[0005] A powder feeding device for a base material frying pan includes a feeding hopper, a negative pressure pipe, and a return pipe. The feeding port at the upper end of the feeding hopper is provided with a sealing cover. The upper end of the feeding hopper is also provided with at least one negative pressure port. The negative pressure port is connected to the return pipe. The return pipe includes a buffer section and a return section. The buffer section is connected to the negative pressure port of the feeding hopper. The return section has an n-shaped structure and is connected to the negative pressure pipe. The negative pressure pipe is used to connect to a negative pressure source.

[0006] Furthermore, the negative pressure pipeline is connected to the negative pressure source via a cyclone separator.

[0007] Furthermore, it also includes an air filter, and the negative pressure pipeline includes a first negative pressure pipeline and a second negative pressure pipeline. The front end of the first negative pressure pipeline is connected to the return pipe, and the end of the first negative pressure pipeline is connected to the air filter and the second negative pressure pipeline respectively through a tee. The air filter and the second negative pressure pipeline are respectively equipped with on / off valves.

[0008] Furthermore, it also includes a cleaning water pipe, with an inlet at the upper end of the sealing cap, and the cleaning water pipe is connected to the inlet for connection to a cleaning water source.

[0009] Furthermore, the sealing cover is hinged to the feeding hopper via a rotating shaft, and a tilting drive mechanism is provided outside the feeding hopper, which is used to drive the sealing cover to open and close.

[0010] Furthermore, a hinge seat is provided on the outer side of the feeding hopper, and a connecting plate is provided in the middle of the sealing cover. The connecting plate extends out of the sealing cover, and the extended end of the connecting plate is hinged to the hinge seat on the outer side of the feeding hopper through the rotating shaft. The tilting drive mechanism adopts a cylinder, which is inclined upward on the outer side of the feeding hopper, and the piston rod of the cylinder is connected to the extended end of the connecting plate.

[0011] Furthermore, the negative pressure port of the feeding hopper adopts a flat opening structure.

[0012] Furthermore, the feeding hopper has a conical structure.

[0013] Furthermore, the buffer section and the return section are connected by a circular arc transition.

[0014] The above technical solution has the following beneficial effects:

[0015] This invention features a simple structure. By adding a sealing cover, a negative pressure pipe, and a return pipe to the feeding hopper, the sealing cover reduces powder diffusion. A negative pressure port is located at the upper end of the feeding hopper, connected to the negative pressure pipe via the return pipe. The powder first passes through the return pipe before reaching the negative pressure pipe. Because the return pipe incorporates a buffer section and a return section with an "n"-shaped structure, most of the powder is buffered and returned to the feeding hopper before entering the negative pressure pipe. This prevents the powder from being directly drawn into the negative pressure pipe, reducing waste and preventing powder from spreading during feeding. Furthermore, it minimizes the impact on the working environment and protects the health of workers.

[0016] Furthermore, it also includes an air filter. The negative pressure pipeline includes a first negative pressure pipeline and a second negative pressure pipeline. The front end of the first negative pressure pipeline is connected to the return pipe, and the end of the first negative pressure pipeline is connected to the air filter and the second negative pressure pipeline respectively via a tee. The air filter and the second negative pressure pipeline are each equipped with an on / off valve. By opening the on / off valve of the air filter and closing the on / off valve of the second negative pressure pipeline, the outside air filtered by the air filter enters the feeding hopper through the first negative pressure pipeline, thereby balancing the pressure inside the feeding hopper.

[0017] It also includes a cleaning water pipe, with a water inlet at the upper end of the sealing cover. The cleaning water pipe is connected to the water inlet and is connected to a cleaning water source. When cleaning the feeding hopper is required, water is supplied through the cleaning water pipe to facilitate cleaning.

[0018] The sealing cap is hinged to the feeding hopper via a rotating shaft. A tilting drive mechanism is provided outside the feeding hopper to drive the sealing cap to open and close. This eliminates the need for manual operation of the sealing cap and makes operation faster.

[0019] The negative pressure ports inside the hopper all adopt a flat opening structure, which increases the lateral width of the buffer section inlet, thereby facilitating the absorption of powder materials.

[0020] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of specific embodiment 1;

[0022] Figure 2 This is a schematic diagram of the structure in Specific Embodiment 1 where a cleaning water pipe is installed on the sealing rod;

[0023] Figure 3 This is a schematic diagram of the return pipe in specific embodiment 1.

[0024] In the attached diagram, 1 is the feeding hopper, 2 is the return pipe, 2-1 is the buffer section, 2-2 is the return section, 3 is the negative pressure pipe, 3-1 is the first negative pressure pipe, 3-2 is the second negative pressure pipe, 4 is the sealing cover, 5 is the tilting drive mechanism, 6 is the connecting plate, 7 is the air filter, and 8 is the cleaning water pipe. Detailed Implementation Specific Implementation

[0026] See Figure 1 , Figure 2 and Figure 3 The diagram shows a powder feeding device for a base material frying pan, comprising a feeding hopper 1, a negative pressure pipe 3, and a return pipe 2. The feeding hopper 1 has a conical structure, and a sealing cover 4 is provided at the feeding port at the upper end of the feeding hopper 1. The sealing cover 4 is hinged to the feeding hopper 1 via a rotating shaft. A flipping drive mechanism 5 is provided outside the feeding hopper 1, which is used to drive the sealing cover 4 to open and close. In this specific embodiment: a hinge seat is provided on the outer side of the feeding hopper 1, and a connecting plate 6 is provided in the middle of the sealing cover 4. The connecting plate 6 extends out of the sealing cover 4, and the extended end of the connecting plate 6 is hinged to the hinge seat on the outer side of the feeding hopper 1 via the rotating shaft. The flipping drive mechanism 5 is a cylinder, which is inclined upward on the outer side of the feeding hopper 1, and the piston rod of the cylinder is connected to the extended end of the connecting plate.

[0027] The upper end of the feeding hopper 1 is also provided with at least one negative pressure port. One negative pressure port or two negative pressure ports can be used. In this specific embodiment, the upper end of the feeding hopper is provided with two negative pressure ports.

[0028] The negative pressure port is connected to a return pipe 2, which includes a buffer section 2-1 and a return section 2-2. The buffer section 2-1 is connected to the negative pressure port of the feeding hopper 1. In this specific embodiment, both the negative pressure port and the inlet end of the buffer section 2-1 of the return pipe 2 adopt a flat-mouth structure. The buffer section 2-1 and the return section 2-2 are connected by an arc transition. This arc filtering connection facilitates automatic return to the feeding hopper after being blocked by the return section. The return section 2-2 has an n-shaped structure and is connected to the negative pressure pipeline 3. The negative pressure pipeline is connected to the negative pressure source through a cyclone separator.

[0029] Possibly, an air filter is also included, which is an existing filtration device. The negative pressure pipeline 3 includes a first negative pressure pipeline 3-1 and a second negative pressure pipeline 3-2. The front end of the first negative pressure pipeline 3-1 is connected to the return pipe, and the end of the first negative pressure pipeline 3-1 is connected to the air filter and the second negative pressure pipeline 3-2 respectively through a tee. The second negative pressure pipeline 3-2 is connected to the cyclone separator. The air filter and the second negative pressure pipeline 3-2 are respectively equipped with on / off valves, which are existing quick-opening and closing valves.

[0030] It may also include a cleaning water pipe 8, with an inlet at the upper end of the sealing cover 4, the cleaning water pipe 8 being connected to the inlet, and the cleaning water pipe 8 being used to connect to a cleaning water source.

Claims

1. A powder feeding device for a base seasoning wok, comprising a feeding hopper, characterized in that: It also includes a negative pressure pipe and a return pipe. The feeding port at the upper end of the feeding hopper is equipped with a sealing cover. The upper end of the feeding hopper is also equipped with at least one negative pressure port. The negative pressure port is connected to the return pipe. The return pipe includes a buffer section and a return section. The buffer section is connected to the negative pressure port of the feeding hopper. The return section has an n-shaped structure and is connected to the negative pressure pipe. The negative pressure pipe is used to connect to a negative pressure source.

2. The powder feeding device for a base seasoning wok according to claim 1, characterized in that: The negative pressure pipeline is connected to the negative pressure source via a cyclone separator.

3. The powder feeding device for a base material frying pan according to claim 1 or 2, characterized in that: It also includes an air filter, and the negative pressure pipeline includes a first negative pressure pipeline and a second negative pressure pipeline. The front end of the first negative pressure pipeline is connected to the return pipe, and the end of the first negative pressure pipeline is connected to the air filter and the second negative pressure pipeline respectively through a tee. The air filter and the second negative pressure pipeline are respectively equipped with on / off valves.

4. The powder feeding device for a base seasoning wok according to claim 1, characterized in that: It also includes a cleaning water pipe, with an inlet at the upper end of the sealing cap, and the cleaning water pipe is connected to the inlet for connection to a cleaning water source.

5. The powder feeding device for a base seasoning wok according to claim 1, characterized in that: The sealing cover is hinged to the feeding hopper via a rotating shaft. A flipping drive mechanism is provided outside the feeding hopper, which is used to drive the sealing cover to open and close.

6. The powder feeding device for a base seasoning wok according to claim 5, characterized in that: The feeding hopper is provided with a hinge seat on its outer side, and a connecting plate is provided in the middle of the sealing cover. The connecting plate extends out of the sealing cover, and the extended end of the connecting plate is hinged to the hinge seat on the outer side of the feeding hopper through the rotating shaft. The tilting drive mechanism is a cylinder, which is tilted upward on the outer side of the feeding hopper, and the piston rod of the cylinder is connected to the extended end of the connecting plate.

7. The powder feeding device for a base seasoning wok according to claim 1, characterized in that: The negative pressure port of the feeding hopper adopts a flat opening structure.

8. The powder feeding device for a base material frying pan according to claim 1 or 7, characterized in that: The feeding hopper has a conical structure.

9. The powder feeding device for a base seasoning wok according to claim 1, characterized in that: The buffer section and the return section are connected by a circular arc transition.