A silencer for a poultry feed cooling fan
By introducing a noise reduction and vibration damping mechanism into the poultry feed cooling fan, and utilizing the linkage of sliders, springs, and hydraulic damping rods, the problem of high noise levels in the cooling fan was solved, effectively reducing noise and improving equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU ZHENGCHANG FEED
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
AI Technical Summary
Existing poultry feed cooling fans generate significant noise and pollute the environment during operation.
A poultry feed cooling fan device including a silencing mechanism and a vibration damping mechanism was designed. The silencing mechanism is achieved through the linkage of a slider, a spring, and a linkage rod, while the vibration damping mechanism is achieved through the cooperation of a hydraulic damping rod and a spring to absorb and buffer vibration energy to reduce noise.
It effectively reduces the noise of the cooling fan during operation, improves the stability and user comfort of the equipment, and reduces environmental pollution.
Smart Images

Figure CN224301130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of AAA technology, specifically a silencer for a poultry feed cooling fan. Background Technology
[0002] Poultry feed cooling fans are specialized equipment used in poultry feed processing to cool high-temperature feed after pelleting. Their function directly affects feed quality and production efficiency. However, poultry feed cooling fans generate considerable noise during operation.
[0003] A cooling device for feed production, disclosed in CN107348539A, has a rotating box welded onto a rotating shaft. This cooling device for feed production has a simple structure, eliminates the occurrence of feed clumping, and increases the cooling area by dispersing the feed, thereby accelerating the cooling process and improving work efficiency.
[0004] The cooling device used in feed production has a simple structure and prevents feed from clumping. However, the device lacks a sound-dampening structure, resulting in significant noise and environmental pollution during operation. Therefore, improvements are needed. Utility Model Content
[0005] The purpose of this invention is to provide a noise reduction device for poultry feed cooling fans to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a noise reduction device for a poultry feed cooling fan, comprising a load-bearing base, a noise reduction mechanism provided on the inner side of the load-bearing base, a cooling fan body provided on the top of the noise reduction mechanism, and a shock absorption mechanism provided at the bottom of the noise reduction mechanism;
[0007] The noise reduction mechanism includes a load-bearing plate, which is slidably connected to the inner side of a load-bearing base. An arc-shaped plate is fixedly connected to the front and rear sides of the bottom of the load-bearing base. A linkage rod is fixedly connected to the inner side of the arc-shaped plate. A rotating plate is rotatably connected to the outer side of the linkage rod. A connecting rod is rotatably connected to the bottom inner side of the rotating plate. A U-shaped plate is fixedly connected to the front and rear sides of the connecting rod. A slider is fixedly connected to the bottom of the U-shaped plate. A fixed rod is slidably connected to the inner side of the slider. A first spring is sleeved around the fixed rod.
[0008] Preferably, the inner side of the support base is provided with a groove corresponding to the movement trajectory of the slider, and the slider is slidably connected to the inside of the groove. Through the groove, the slider can slide inside the support base, making the slider more stable during movement.
[0009] Preferably, the outer side of the first spring is fixedly connected to the inner side of the support seat, and the inner side of the first spring is fixedly connected to the outer side of the slider. Through the elastic force of the first spring, the cooling fan body can be damped, thereby reducing noise generation when the cooling fan body is in use.
[0010] Preferably, there are two sliders, which are slidably connected to the periphery of the fixed rod. The sliders can support the U-shaped plate, making the U-shaped plate more stable during movement.
[0011] Preferably, the shock absorption mechanism includes a limiting block, which is fixedly connected to the outside of the load-bearing plate. A hydraulic damping rod is fixedly connected to the bottom of the load-bearing plate. The bottom of the hydraulic damping rod is fixedly connected to the bottom of the load-bearing seat. A second spring is sleeved around the hydraulic damping rod.
[0012] Preferably, the inner side of the load-bearing base is provided with a limiting groove corresponding to the movement trajectory of the limiting block, and the limiting block is slidably connected inside the limiting groove. Through the limiting groove, the limiting block can slide inside the load-bearing base, making the load-bearing plate more stable during the lifting and lowering process.
[0013] Preferably, the top of the second spring is fixedly connected to the bottom of the load-bearing plate, and the bottom of the second spring is fixedly connected to the bottom of the load-bearing seat. The second spring works in conjunction with the hydraulic damping rod so that the load-bearing plate can quickly return to its original position when pressed down.
[0014] Compared with the prior art, this utility model provides a silencer for a poultry feed cooling fan, which has the following beneficial effects:
[0015] 1. The poultry feed cooling fan uses a silencer. When cooling poultry feed, the cooling fan body vibrates, and the load-bearing plate moves accordingly, driving the arc plate and linkage rod to move. The rotating plate rotates on the linkage rod and drives the U-shaped plate and slider to slide on the fixed rod through the connecting rod. When the slider slides, it will compress or stretch the first spring. The first spring absorbs and buffers the vibration energy through deformation, reducing the noise generated during vibration transmission.
[0016] 2. The silencer device of this poultry feed cooling fan, with the hydraulic damping rod and the second spring in the shock absorption mechanism working together, provides double shock absorption protection for the poultry feed cooling fan body. When the fan vibrates during operation, the hydraulic damping rod consumes the vibration energy through the flow of internal hydraulic oil, playing a buffering and shock absorption role, further absorbing and dispersing the vibration energy, and making the silencer effect better. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a front view structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the noise reduction mechanism.
[0020] Figure 3 This is a schematic diagram of the linkage rod, rotating plate, and connecting rod structure.
[0021] Figure 4 This is a schematic diagram of the shock absorption mechanism.
[0022] In the diagram: 1. Support seat; 2. Silencing mechanism; 21. U-shaped plate; 22. Slider; 23. First spring; 24. Fixed rod; 25. Support plate; 26. Arc plate; 27. Linkage rod; 28. Rotating plate; 29. Connecting rod; 3. Cooling fan body; 4. Vibration damping mechanism; 41. Second spring; 42. Hydraulic damping rod; 43. Limit block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.
[0025] This utility model provides the following technical solution:
[0026] Example 1
[0027] Please see Figure 1-4This utility model provides a technical solution: a noise reduction device for a poultry feed cooling fan, including a load-bearing base 1, a noise reduction mechanism 2 arranged inside the load-bearing base 1, a cooling fan body 3 arranged on the top of the noise reduction mechanism 2, and a shock absorption mechanism 4 arranged at the bottom of the noise reduction mechanism 2.
[0028] The silencing mechanism 2 includes a load-bearing plate 25, which is slidably connected to the inner side of the load-bearing seat 1. An arc-shaped plate 26 is fixedly connected to the front and rear sides of the bottom of the load-bearing seat 1. A linkage rod 27 is fixedly connected to the inner side of the arc-shaped plate 26. A rotating plate 28 is rotatably connected to the outer side of the linkage rod 27. A connecting rod 29 is rotatably connected to the bottom inner side of the rotating plate 28. A U-shaped plate 21 is fixedly connected to the front and rear sides of the connecting rod 29. A slider 22 is fixedly connected to the bottom of the U-shaped plate 21. A fixing rod 24 is slidably connected to the inner side of the slider 22. The fixing rod 24 is fixedly connected to the inner side of the load-bearing seat 1. A first spring 23 is sleeved around the fixing rod 24.
[0029] Furthermore, a groove corresponding to the movement trajectory of the slider 22 is provided on the inner side of the support base 1, and the slider 22 is slidably connected inside the groove. Through the groove, the slider 22 can slide inside the support base 1, making the slider 22 more stable during movement.
[0030] Furthermore, the outer side of the first spring 23 is fixedly connected to the inner side of the support seat 1, and the inner side of the first spring 23 is fixedly connected to the outer side of the slider 22. Through the elastic force of the first spring 23, the cooling fan body 3 can be damped, thereby reducing the noise generated when the cooling fan body 3 is in use.
[0031] Furthermore, there are two sliders 22, which are slidably connected to the periphery of the fixed rod 24. The sliders 22 can support the U-shaped plate 21, making the U-shaped plate 21 more stable during movement.
[0032] Example 2
[0033] Please see Figure 1-4 Furthermore, based on Embodiment 1, the shock absorption mechanism 4 further includes a limiting block 43, which is fixedly connected to the outside of the load-bearing plate 25. A hydraulic damping rod 42 is fixedly connected to the bottom of the load-bearing plate 25. The bottom of the hydraulic damping rod 42 is fixedly connected to the bottom of the load-bearing seat 1. A second spring 41 is sleeved around the hydraulic damping rod 42.
[0034] Furthermore, a limiting groove corresponding to the movement trajectory of the limiting block 43 is provided on the inner side of the load-bearing seat 1, and the limiting block 43 is slidably connected to the inside of the limiting groove. Through the limiting groove, the limiting block 43 can slide on the inner side of the load-bearing seat 1, making the load-bearing plate 25 more stable during the lifting and lowering process.
[0035] Furthermore, the top of the second spring 41 is fixedly connected to the bottom of the load-bearing plate 25, and the bottom of the second spring 41 is fixedly connected to the bottom of the inner part of the load-bearing seat 1. By using the second spring 41 in conjunction with the hydraulic damping rod 42, the load-bearing plate 25 can quickly return to its original position when pressed down.
[0036] In actual operation, when this device is used to cool poultry feed, the operator manually turns on the cooling fan body 3. The cooling fan body 3 vibrates, pressing against the load-bearing plate 25. This causes the load-bearing plate 25 to move downwards via the arc-shaped plate 26, driving the linkage rod 27 and rotating plate 28. The movement of the linkage rod 27 presses against the rotating plate 28, which in turn moves the U-shaped plate 21 via the connecting rod 29. The U-shaped plate 21 then moves the slider 22, which in turn presses against the first spring 23. As the load-bearing plate 25 moves downwards, it can also cool the liquid... The damping rod 42 and the second spring 41 are pressed together. The first spring 23, the second spring 41 and the hydraulic damping rod 42 work together to enable the first spring 23 to drive the U-shaped plate 21 to move inward to the bearing seat 1 through the slider 22. The U-shaped plate 21 drives the rotating plate 28 and the linkage rod 27 to move upward through the connecting rod 29. The linkage rod 27 drives the bearing plate 25 to move upward through the arc plate 26. The bearing plate 25 quickly returns to its original position, making the cooling fan body 3 more stable during use. The first spring 23 and the second spring 41 absorb and buffer vibration energy through deformation, reducing the noise generated during the vibration transmission process when the poultry feed cooling fan is operating.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A silencer for a poultry feed cooling fan, comprising a load-bearing base (1), characterized in that: The inner side of the load-bearing seat (1) is provided with a noise reduction mechanism (2), the top of the noise reduction mechanism (2) is provided with a cooling fan body (3), and the bottom of the noise reduction mechanism (2) is provided with a shock absorption mechanism (4). The noise reduction mechanism (2) includes a load-bearing plate (25), which is slidably connected to the inner side of the load-bearing seat (1). An arc-shaped plate (26) is fixedly connected to the front and rear sides of the bottom of the load-bearing seat (1). A linkage rod (27) is fixedly connected to the inner side of the arc-shaped plate (26). A rotating plate (28) is rotatably connected to the outer side of the linkage rod (27). A connecting rod (29) is rotatably connected to the bottom of the inner side of the rotating plate (28). A U-shaped plate (21) is fixedly connected to the front and rear sides of the connecting rod (29). A slider (22) is fixedly connected to the bottom of the U-shaped plate (21). A fixed rod (24) is slidably connected to the inner side of the slider (22). The fixed rod (24) is fixedly connected to the inner side of the load-bearing seat (1). A first spring (23) is sleeved around the fixed rod (24).
2. The silencer for a poultry feed cooling fan according to claim 1, characterized in that: The inner side of the load-bearing seat (1) is provided with a groove corresponding to the movement trajectory of the slider (22), and the slider (22) is slidably connected inside the groove.
3. The silencer for a poultry feed cooling fan according to claim 1, characterized in that: The outer side of the first spring (23) is fixedly connected to the inner side of the support seat (1), and the inner side of the first spring (23) is fixedly connected to the outer side of the slider (22).
4. The silencer for a poultry feed cooling fan according to claim 1, characterized in that: There are two sliders (22), and the two sliders (22) are slidably connected to the periphery of the fixed rod (24).
5. A silencer for a poultry feed cooling fan according to claim 1, characterized in that: The shock absorption mechanism (4) includes a limiting block (43), which is fixedly connected to the outside of the load-bearing plate (25). A hydraulic damping rod (42) is fixedly connected to the bottom of the load-bearing plate (25). The bottom of the hydraulic damping rod (42) is fixedly connected to the bottom of the load-bearing seat (1). A second spring (41) is sleeved around the hydraulic damping rod (42).
6. The silencer for a poultry feed cooling fan according to claim 5, characterized in that: The inner side of the load-bearing seat (1) is provided with a limiting groove corresponding to the movement trajectory of the limiting block (43), and the limiting block (43) is slidably connected inside the limiting groove.
7. A silencer for a poultry feed cooling fan according to claim 5, characterized in that: The top of the second spring (41) is fixedly connected to the bottom of the load-bearing plate (25), and the bottom of the second spring (41) is fixedly connected to the bottom of the load-bearing seat (1).