Air exhaust and noise reduction device of moon cake oven

Abstract

The utility model relates to the technical field of air exhaust and noise reduction, and discloses an air exhaust and noise reduction device of a moon cake oven, which comprises a mounting plate, an air exhaust shell is fixedly arranged at the upper end of the mounting plate, an air exhaust groove is formed in the air exhaust shell, a motor is arranged outside the air exhaust shell, and an output end shaft of the motor is connected with an air exhaust fan blade. A limiting groove is formed in the mounting plate, and the mounting plate is in sliding connection with the limiting sliding rod through the limiting groove. According to the air exhaust and noise reduction device for the mooncake oven, supporting and damping of the mounting plate can be achieved through the first damping springs and the second damping springs, noise generated by working vibration of the device can be reduced, it can be effectively guaranteed that the mounting plate and the oven are always in a conducted state through the connecting corrugated pipe, and the noise is reduced along with adjustment of the adjusting nut; the position of the pushing plate can be effectively changed, and at the moment, if a first damping spring and a second damping spring deform excessively, the first damping spring and the second damping spring can be adjusted to the proper rebound degree.

Description

Technical Field

[0001] This utility model relates to the field of ventilation and noise reduction technology, specifically a ventilation and noise reduction device for a mooncake oven. Background Technology

[0002] Mooncake ovens are specialized equipment for baking mooncakes. They come in various types and functions to meet the needs of mooncake production at different scales and with different requirements. To ensure baking quality and a safe working environment, an exhaust system is usually installed on the oven. During the baking process, a large amount of moisture is generated inside the mooncake oven. If this moisture is not removed in time, it will affect the baking effect and taste of the mooncakes. At the same time, the exhaust system can regulate the temperature inside the oven to ensure that the mooncakes are baked at a suitable temperature, thereby achieving the best baking effect, avoiding heat accumulation and local overheating, and helping to bake the mooncakes evenly.

[0003] Currently, patent CN205669501U discloses an exhaust fan, including a housing, a motor, fan blades, and a mounting bracket. The motor is connected to the fan blades via a drive mechanism and is mounted on the mounting bracket. The motor, fan blades, and mounting bracket are all located inside the housing, and the mounting bracket is detachably connected to the housing. This mounting bracket design facilitates the disassembly of the motor and fan blades, making maintenance and cleaning easier. Both the mounting bracket and the housing have mounting holes with connecting screws, further simplifying the installation and disassembly of the mounting bracket. The mounting bracket includes a motor retaining ring, a support rod, and a mounting plate. The motor retaining ring connects to the motor, one end of the support rod connects to the motor retaining ring, and the other end connects to the mounting plate. The mounting hole is located on the mounting plate, ensuring a stable installation of the motor. The housing has a mounting seat corresponding to the mounting plate, with mounting holes located on the mounting seat, ensuring a stable installation of the mounting plate within the housing. The use of a mounting bracket to detachably mount the motor within the housing facilitates the disassembly of the motor and fan blades, enabling maintenance and cleaning. The housing is made of stainless steel or aluminum alloy, providing a long service life and easy cleaning. Exhaust fans have the advantages of being easy to maintain and clean, and having a simple structure.

[0004] However, the above-mentioned exhaust fans still have the following problems during use: the exhaust structure may generate a lot of noise during operation, and long-term exposure to a high-noise environment may damage people's hearing or even cause other health problems. At the same time, a high-noise environment will interfere with people's normal communication and thinking, reduce work efficiency, and the vibration during the operation of the exhaust structure not only generates noise but also affects the service life of the exhaust structure. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a noise reduction device for mooncake oven exhaust. By using a first damping spring and damping damper, the exhaust structure can be damped during operation, thereby reducing the noise of the exhaust structure.

[0006] This utility model provides the following technical solution: a noise reduction device for mooncake oven exhaust, including a mounting plate with an exhaust shell fixedly mounted on its upper end, and an exhaust groove provided on the exhaust shell. An electric motor is mounted outside the exhaust shell, and the output shaft of the electric motor is connected to an exhaust fan blade. A limiting groove is provided on the mounting plate, and the mounting plate is slidably connected to a limiting slide rod through the limiting groove. The limiting slide rod is fixedly mounted on the oven. A shock-absorbing damper is fixedly mounted on the mounting plate, and the other end of the shock-absorbing damper is fixedly mounted on the oven. A first shock-absorbing spring is fixedly mounted on the mounting plate, and the other end of the first shock-absorbing spring is fixedly mounted on the oven.

[0007] Furthermore, the exhaust casing is provided with exhaust grooves at equal angles, and the exhaust grooves are designed as elongated groove structures. This structure facilitates the replacement of air in the oven through the exhaust grooves.

[0008] Furthermore, a connecting corrugated pipe is fixedly installed on the mounting plate, and the connecting corrugated pipe is connected to the exhaust shell. A receiving plate is installed on the connecting corrugated pipe, and a mounting screw is installed through the receiving plate. Through the above structure, the conductive connection between the oven and the mounting plate can be guaranteed under the action of the connecting corrugated pipe.

[0009] Furthermore, the receiving plates are distributed at equal angles with respect to the center of the connecting corrugated pipe, and a total of four receiving plates are provided. Through the above structure, the connecting corrugated pipe can be installed and fixed under the action of the receiving plates and mounting screws.

[0010] Furthermore, a second damping spring is fixedly installed on the mounting plate, and the second damping spring and the first damping spring are respectively arranged on two sides of the mounting plate. The other end of the second damping spring is connected to the push plate. Through the above structure, it is convenient to realize the damping of the mounting plate by means of the first damping spring and the second damping spring.

[0011] Furthermore, the push plate is slidably disposed outside the limiting slide rod, and the limiting slide rod is provided with a threaded structure. The limiting slide rod is connected to the adjusting nut through the threaded structure. With the above structure, the position of the push plate can be changed and adjusted by rotating the adjusting nut.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This mooncake oven's exhaust noise reduction device uses a first and second damping spring to support and dampen the mounting plate, preventing vibration caused by the exhaust structure during operation. This reduces noise generated by the device's vibrations, allowing staff to focus on their work and improving efficiency and accuracy. The corrugated pipe connection ensures continuous conductivity between the mounting plate and the oven. Adjusting the adjusting nut changes the position of the push plate. If the first and second damping springs become overworked, they can be adjusted to a suitable rebound level. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the exhaust fan blade of this utility model;

[0016] Figure 3 This is a three-dimensional cross-sectional structural diagram of the exhaust shell of this utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the limiting slide bar of this utility model;

[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the connecting corrugated pipe of this utility model.

[0019] In the diagram: 1. Mounting plate; 2. Exhaust housing; 3. Motor; 4. Exhaust groove; 5. Exhaust fan blade; 6. Limiting slide bar; 7. Limiting groove; 8. Vibration damping; 9. Connecting bellows; 10. Receiving plate; 11. Mounting screw; 12. First damping spring; 13. Second damping spring; 14. Push plate; 15. Adjusting nut. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1-5This utility model provides a technical solution: a noise reduction device for mooncake oven exhaust, including a mounting plate 1, an exhaust shell 2 fixedly mounted on its upper end, an exhaust groove 4 on the exhaust shell 2, a motor 3 mounted outside the exhaust shell 2, and an exhaust fan blade 5 connected to the output shaft of the motor 3. A limiting groove 7 is provided on the mounting plate 1, and the mounting plate 1 is slidably connected to a limiting slide rod 6 through the limiting groove 7. The limiting slide rod 6 is fixedly mounted on the oven. A shock-absorbing damper 8 is fixedly mounted on the mounting plate 1, and the other end of the shock-absorbing damper 8 is fixedly mounted on the oven. A first shock-absorbing spring 12 is fixedly mounted on the mounting plate 1, and the other end of the first shock-absorbing spring 12 is fixedly mounted on the oven. The exhaust shell 2 has exhaust grooves 4 at equal angles, and the exhaust grooves 4 are designed as elongated groove structures.

[0022] When ventilation is required inside the oven, the motor 3 starts working. Since the output end of the motor 3 is connected to the exhaust fan blade 5, the exhaust fan blade 5 starts to rotate. As the exhaust fan blade 5 rotates, the air inside the oven is replaced (when the exhaust fan blade 5 rotates, the airflow direction is from inside the oven to outside the oven). The air is discharged through the exhaust groove 4. As the motor 3 works, the mounting plate 1 begins to vibrate and slides along the limiting slide rod 6. Because the mounting plate 1 is equipped with a first damping spring 12 and a second damping spring 13, the first damping spring 12 and the second damping spring 13 can protect the mounting plate 1 from vibration. The damping 8 can also ensure the stability of the mounting plate 1. In other words, the noise of the ventilation device can be reduced by means of vibration reduction.

[0023] A connecting bellows 9 is fixedly installed on the mounting plate 1, and the connecting bellows 9 is connected to the exhaust housing 2. A receiving plate 10 is installed on the connecting bellows 9, and a mounting screw 11 is provided through the receiving plate 10. The receiving plates 10 are distributed at equal angles about the center of the connecting bellows 9, and there are four receiving plates 10 in total. A second shock-absorbing spring 13 is fixedly installed on the mounting plate 1, and the second shock-absorbing spring 13 and the first shock-absorbing spring 12 are respectively provided on two sides of the mounting plate 1. The other end of the second shock-absorbing spring 13 is connected to the push plate 14. The push plate 14 is slidably disposed outside the limiting slide rod 6, and the limiting slide rod 6 is provided with a threaded structure, and the limiting slide rod 6 is connected to the adjusting nut 15 through the threaded structure.

[0024] As the mounting plate 1 vibrates during operation, the connecting bellows 9 begins to deform (the connecting bellows 9 can be fixedly installed on the oven via the receiving plate 10 and mounting screws 11). Under the action of the connecting bellows 9, the mounting plate 1 and the oven are always in a conductive state. As the usage time increases, the first damping spring 12 and the second damping spring 13 begin to undergo overwork deformation, that is, the first damping spring 12 and the second damping spring 13 can no longer provide good shock absorption support for the mounting plate 1. By rotating the adjusting nut 15, the adjusting nut 15 begins to move on the limiting slide rod 6, thereby pushing the push plate 14 to move, which can adjust the position of the mounting plate 1, so that the mounting plate 1 is closer to the oven, ensuring the shock absorption and noise reduction effect of the mounting plate 1.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A moon cake oven exhaust noise reduction device, comprising a mounting plate (1), the upper end of which is fixedly provided with an exhaust shell (2), and the exhaust shell (2) is provided with an exhaust groove (4), characterized in that, Also include: The exhaust shell (2) is externally provided with a motor (3), and the output shaft of the motor (3) is connected with an exhaust fan blade (5), a limiting groove (7) is formed on the mounting plate (1), the mounting plate (1) is slidably connected with the limiting slide rod (6) through the limiting groove (7), and the limiting slide rod (6) is fixedly installed on the oven, a damping (8) is fixedly installed on the mounting plate (1), and the other end of the damping (8) is fixedly installed on the oven, a first damping spring (12) is fixedly installed on the mounting plate (1), and the other end of the first damping spring (12) is fixedly installed on the oven.

2. The moon cake oven exhaust noise reduction device according to claim 1, characterized in that: The exhaust shell (2) is provided with an exhaust groove (4) at an equal angle, and the exhaust groove (4) is provided as a long slot structure.

3. The moon cake oven exhaust noise reduction device according to claim 1, characterized in that: The mounting plate (1) is fixedly provided with a connecting bellows (9), and the connecting bellows (9) is connected with the exhaust shell (2), the connecting bellows (9) is provided with a receiving plate (10), and the receiving plate (10) is provided with a mounting screw (11).

4. The moon cake oven exhaust noise reduction device according to claim 3, characterized in that: The receiving plate (10) is distributed at an equal angle about the center of the connecting bellows (9), and the receiving plate (10) is provided with four.

5. The moon cake oven exhaust noise reduction device according to claim 1, characterized in that: The mounting plate (1) is fixedly provided with a second damping spring (13), and the second damping spring (13) and the first damping spring (12) are respectively arranged on the two sides of the mounting plate (1), and the other end of the second damping spring (13) is connected with the push plate (14).

6. The moon cake oven exhaust noise reduction device according to claim 5, characterized in that: The push plate (14) is slidably arranged outside the limiting slide rod (6), the limiting slide rod (6) is provided with a threaded structure, and the limiting slide rod (6) is connected with the adjusting nut (15) through the threaded structure.

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