Self-starting accurately-controlled butterfly door air valve of air gathering cylinder fan

Abstract

The utility model discloses a self-starting accurately-controlled butterfly door air valve of an air gathering cylinder fan, and relates to the technical field of breeding machinery. The connecting rod driving unit is mounted on the back surface of the butterfly door assembly; the centrifugal driving unit is installed on the front face of the butterfly door assembly, and the output end of the centrifugal driving unit is connected with the connecting rod driving unit; the limiting unit is arranged on the back face of the butterfly door assembly to control the opening degree of the butterfly door assembly; the limiting unit comprises a limiting touch head which is matched with the back surface of a butterfly door of the butterfly door assembly; one end of the limiting rod is connected with the limiting touch head; and the fixed seat is connected with the other end of the limiting rod. The air valve device solves the technical problem that the opening degree of an existing air valve device is fixed, and therefore adjustment of the ventilation quantity is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of breeding machinery, especially relates to a self-starting precision control of wind fan butterfly door air valve of wind collecting cylinder. BACKGROUND

[0002] In the breeding industry, good ventilation is crucial to the growth environment of livestock and poultry. The traditional ventilation system has many shortcomings, such as difficulty in accurately regulating air volume and air pressure, leading to unstable temperature and humidity, air quality in the breeding house, and easy to cause livestock and poultry diseases and affect growth efficiency. With the development of breeding scale and refinement, the requirement for ventilation equipment is increasing. In recent years, related technologies have been continuously innovated to improve the energy saving and stability of the ventilation system, requiring the wind fan butterfly door air valve of the wind collecting cylinder to always be at the most efficient opening degree, accurately and efficiently regulating the breeding environment, and promoting the healthy and sustainable development of the breeding industry.

[0003] In the existing air valve technology, some air valves are combined with a centrifugal driving unit to realize the opening and closing of the butterfly door, that is, the centrifugal driving unit realizes linear driving by using the centrifugal force generated by the rotation of the fan blade, thereby pushing the butterfly door to open. However, the opening degree of the butterfly door is often fixed, and the ventilation volume cannot be adjusted and limited, which cannot meet the needs of users. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a self-starting precision control of wind fan butterfly door air valve of wind collecting cylinder, which solves the technical problem of fixed opening degree of the air valve device in the prior art, thereby affecting the ventilation volume regulation.

[0005] The application embodiment discloses a self-starting precision control of wind fan butterfly door air valve of wind collecting cylinder, which comprises:

[0006] a butterfly door assembly;

[0007] a connecting rod driving unit installed on the back surface of the butterfly door assembly;

[0008] a centrifugal driving unit installed on the front surface of the butterfly door assembly, and the output end of the centrifugal driving unit is connected with the connecting rod driving unit;

[0009] a limiting unit arranged on the back surface of the butterfly door assembly to control the opening degree of the butterfly door assembly;

[0010] The limiting unit comprises:

[0011] a limiting touch head matched with the back surface of the butterfly door of the butterfly door assembly;

[0012] a limiting rod, one end of which is connected with the limiting touch head;

[0013] a fixing seat connected with the other end of the limiting rod.

[0014] The application sets a limiting unit, and the angle of opening of the butterfly door assembly can be controlled through the limiting unit, so that the ventilation volume can be adjusted.

[0015] On the basis of the above technical solutions, the application embodiments can also be improved as follows:

[0016] Further, the fixing seat is provided with a plurality of through holes in the circumferential direction, and the beneficial effect of the step is that the limiting unit is facilitated to be assembled through the plurality of through holes.

[0017] Further, the limiting rod is located at the middle part of the limiting contact head, so that the adjustment of the butterfly door assembly can be balanced.

[0018] Further, the butterfly door assembly comprises:

[0019] a mounting frame;

[0020] a butterfly door arranged in the mounting frame;

[0021] a tension spring seat mounted on the front surface of the butterfly door;

[0022] a tension spring, one end of which is connected with the butterfly door, and the other end of which is connected with the tension spring seat, and the beneficial effect of the step is that the butterfly door can be reset through the tension spring.

[0023] Further, the tension spring is two, and the beneficial effect of the step is that the two tension springs ensure stable reset of the butterfly door.

[0024] Further, the connecting rod driving unit comprises:

[0025] at least two hinge seats, which are installed on the back surface of the butterfly door in a spaced manner;

[0026] at least two connecting rods, which are connected with the hinge seats one by one;

[0027] a rotating shaft, which is connected with the two connecting rods, and the rotating shaft is connected with the output end of the centrifugal driving unit, and the beneficial effect of the step is that the connecting rod driving unit can realize stable rotation of the butterfly door.

[0028] Further, the rotating shaft is perpendicular to the output end of the centrifugal driving unit, and the beneficial effect of the step is that stable conversion of the movement direction can be realized.

[0029] One or more technical solutions provided in the application embodiments have at least the following technical effects or advantages:

[0030] 1. The centrifugal drive unit in this application utilizes the centrifugal force generated by the rotation of the fan blades to achieve linear drive, requiring no additional power and maintaining constant, undiminished driving force. This ensures that the damper always has stable power support during fan operation, preventing damper failure or abnormal operation due to unstable power. This significantly improves the reliability and stability of the damper drive system, reduces downtime and maintenance time caused by drive problems, and enhances the overall operating efficiency of the aquaculture ventilation system.

[0031] 2. This application features a connecting rod drive unit that precisely converts the linear drive of the centrifugal drive unit into a 90° axial rotation of the butterfly door. This precise conversion mechanism allows the butterfly door to open and close at a precise angle according to design requirements, effectively resolving issues with traditional dampers that can cause them to open improperly or open and close abnormally due to factors such as unstable positive pressure. This allows for precise control of ventilation volume, ensuring precise control of environmental parameters such as temperature, humidity, and air quality within the breeding house, and providing a more suitable growth environment for livestock and poultry.

[0032] 3. This application sets a limit unit, and the adjustment of the limit unit can set the opening angle of the air valve, so that the ventilation system can better adapt to various changes in performance requirements, further optimize the adaptability and controllability of the breeding environment, and at the same time, on the basis of meeting the ventilation needs, reduce unnecessary ventilation volume by reasonably adjusting the angle, reduce fan energy consumption, and improve the energy efficiency of the ventilation system.

[0033] 4. The overall structural design of this application is compact and reasonable, and the various components work together smoothly. It can be well integrated and adapted with the existing aquaculture duct fan system, without the need for large-scale transformation of the original ventilation system architecture, reducing the cost of technology upgrades and implementation difficulty, which is conducive to the widespread promotion and application in the aquaculture industry, promoting the overall progress of aquaculture ventilation technology and the sustainable development of the aquaculture industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 This is a structural diagram of a butterfly door damper of a self-starting, precisely controlled cone fan according to a specific embodiment of the present invention;

[0036] Figure 2 for Figure 1 Schematic diagram of the back structure;

[0037] Figure 3 for Figure 1 Schematic diagram of the back structure of the middle butterfly door when it is not closed;

[0038] 1-butterfly door assembly; 2-connecting rod drive unit; 3-centrifugal drive unit; 4-limit unit;

[0039] 101-installation frame; 102-butterfly door; 103-tension spring seat; 104-tension spring;

[0040] 201- articulated seat; 202- connecting rod; 203- rotating shaft;

[0041] 401-limit contact head; 402-limit rod; 403-fixing seat; 404-through hole. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0043] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0044] In this application, unless otherwise specified or limited, the terms "installed," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0045] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0046] Example:

[0047] like Figure 1-3 As shown, the present application discloses a self-starting, precisely controlled butterfly door air valve of a duct fan, which is additionally equipped with a centrifugal drive unit, a connecting rod drive unit and a limit unit. The centrifugal force generated by the rotation of the fan blades is used to achieve linear drive output. No additional power is required and the driving force is constant and unattenuated.

[0048] like Figure 1 As shown, the specific structure of this application includes:

[0049] The butterfly door assembly 1 is an existing component, and its specific structure will not be described here;

[0050] The connecting rod driving unit 2 is installed on the back of the butterfly door assembly 1. The power source of the connecting rod driving unit 2 is a centrifugal driving unit. Under the driving of the centrifugal driving unit, the butterfly door in the butterfly door assembly 1 can be pulled to perform a closing action.

[0051] The centrifugal driving unit 3 is installed on the front of the butterfly door assembly 1, and the output end of the centrifugal driving unit 3 is connected with the connecting rod driving unit 2. That is, when the centrifugal driving unit 3 starts to work, it provides power to drive the connecting rod driving unit 2 to move, thereby realizing the opening and closing of the butterfly door.

[0052] The limiting unit 4 is arranged on the back of the butterfly door assembly 1 to control the opening degree of the butterfly door assembly 1. That is, the limiting unit 4 forms an interference to complete the limiting.

[0053] Further description is made to the limiting unit 4. As shown in Figure 3 The limiting unit 4 comprises:

[0054] The limiting touch head 401 cooperates with the back of the butterfly door of the butterfly door assembly 1.

[0055] The limiting rod 402 is connected with one end of the limiting touch head 401.

[0056] The fixed seat 403 is connected with the other end of the limiting rod 402.

[0057] Specifically, the limiting touch head 401 is located on the rotating path of the butterfly door. The limiting touch head 401 is connected with the limiting rod 402, and the limiting rod 402 is welded on the fixed seat 403. The fixed seat 403 is provided with a plurality of through holes 404 spaced apart along the circumferential direction thereof, and is installed and fixed on the wind collecting cylinder net cover. By rotating the fixed seat 403, the position of the limiting touch head 401 can be changed. When the butterfly door rotates to contact the two ends of the limiting touch head 401, the rotation angle is limited. In this way, the designer can flexibly adjust the position of the end of the limiting touch head 401 according to actual needs, such as the test effect of the fan, so as to set the opening angle of the damper, effectively improve the flexibility and accuracy of the damper control, optimize the performance of the ventilation system, and ensure that the breeding house always maintains a suitable ventilation environment.

[0058] In order to ensure that the limiting touch head 401 can be symmetrically matched with the butterfly door of the butterfly door assembly during assembly, the limiting rod 402 is located in the middle of the limiting touch head 401, that is, the limiting touch head 401 is symmetric about the limiting rod 402.

[0059] The butterfly door assembly 1 in the application can be an existing assembly or other structures, specifically, as shown in the drawings, the butterfly door assembly 1 comprises: Figure 2

[0060] A mounting frame 101, which can be a circular frame;

[0061] A butterfly door 102 arranged inside the mounting frame 101, which is composed of two doors and a rotating shaft to form a rotating structure for subsequent opening;

[0062] A pull spring seat 103 mounted on the front of the butterfly door 102;

[0063] A pull spring 104, one end of which is connected with the butterfly door 102 and the other end is connected with the pull spring seat 103, which cooperates with the pull spring seat 103 and the pull spring 104 to facilitate the subsequent reset of the butterfly door 102.

[0064] Preferably, the pull spring 104 in the application is two, that is, one door corresponds to one pull spring 104.

[0065] In order to ensure that the butterfly door assembly 1 can rotate better, the application designs a connecting rod driving unit 2, specifically comprising:

[0066] At least two hinge seats 201 are installed on the back of the butterfly door 102;

[0067] At least two connecting rods 202 are connected with the hinge seats 201 one by one;

[0068] A rotating shaft 203 is connected with the two connecting rods 202, and the rotating shaft 203 is connected with the output end of the centrifugal driving unit 3; the application designs the connecting rod driving unit 2 to form a structure similar to a hinge, which realizes the opening and closing of the butterfly door 102 under the driving of the centrifugal driving unit 3.

[0069] In order to better realize the conversion of the motion direction, the rotating shaft 203 is perpendicular to the output end of the centrifugal driving unit 3.

[0070] Further description of the application is as follows:

[0071] The application mainly comprises a butterfly door assembly 1, a connecting rod driving unit 2, a centrifugal driving unit 3 and a limiting unit 4, which can realize stable, efficient and precise control of the air valve.

[0072] ​The centrifugal driving unit 3 mainly comprises a centrifugal arm, a connecting arm, a guide rod, a base, a top rod, a rotating seat and a guide seat, the base is installed on a fan rotating blade flange and located in a rotating plane, slide rails are fixedly arranged on the base and parallel to the fan shaft, the guide seat is connected with the rotating seat bearing, and the top rod is connected with the connecting rod driving unit 2.

[0073] When the fan blade starts to rotate, the base is driven to move in a circle. Due to the centrifugal force, the centrifugal arm is opened outward, and the guide seat slides away from the fan shaft along the guide rod. With the sliding of the guide seat, the linear displacement is transmitted through the push rod, so that the linear driving output is realized. Moreover, because the size of the centrifugal force is related to the rotating speed of the fan blade, as long as the fan is normally operated, stable centrifugal force is continuously generated, so that the driving force of the unit is constant and does not attenuate, and an additional power source is not needed.

[0074] When the centrifugal driving unit 3 transmits linear driving movement, the push rod pushes the connecting rod to rotate around the rotating shaft. Since the connecting rod is connected with the butterfly door, the rotation of the connecting rod drives the butterfly door to rotate in an axial direction. Through reasonable design of the length and connection position relationship of the connecting rod and the push rod, the linear movement transmitted by the centrifugal driving unit can be accurately converted into the axial rotation of the butterfly door by 90 degrees at most, so that the accurate opening and closing control of the butterfly door is realized.

[0075] In the description of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present description.

[0076] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable way in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present description and the features of the different embodiments or examples without contradiction.

[0077] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A self-starting, precisely controlled butterfly door damper for a conduit fan, characterized in that: include: Butterfly door assembly (1); A connecting rod driving unit (2) is mounted on the back of the butterfly door assembly (1); A centrifugal drive unit (3) is mounted on the front of the butterfly door assembly (1), and an output end of the centrifugal drive unit (3) is connected to the connecting rod drive unit (2); A limiting unit (4) is provided on the back of the butterfly door assembly (1) to control the opening of the butterfly door assembly (1); The limiting unit (4) comprises: A limit contact head (401) is matched with the back side of the butterfly door of the butterfly door assembly (1); A limiting rod (402), one end of which is connected to the limiting contact head (401); The fixing seat (403) is connected to the other end of the limiting rod (402).

2. The butterfly door damper of the cone fan according to claim 1, characterized in that: The fixing seat (403) is provided with a plurality of through holes (404) spaced apart along its circumferential direction.

3. The butterfly door damper of the cone fan according to claim 1, characterized in that: The limiting rod (402) is located in the middle of the limiting contact head (401).

4. The butterfly door damper of the cone fan according to claim 1, characterized in that: The butterfly door assembly (1) comprises: Mounting frame (101); A butterfly door (102) is arranged inside the mounting frame (101); A tension spring seat (103) is mounted on the front side of the butterfly door (102); A tension spring (104) has one end connected to the butterfly door (102) and the other end connected to the tension spring seat (103).

5. The butterfly door damper of the cone fan according to claim 4, characterized in that: There are two tension springs (104).

6. The butterfly door damper of the cone fan according to claim 5, characterized in that: The connecting rod driving unit (2) comprises: At least two hinged seats (201) are installed at intervals on the back side of the butterfly door (102); At least two connecting rods (202) are connected to the hinge seat (201) in a one-to-one correspondence; The rotating shaft (203) is connected to the two connecting rods (202), and the rotating shaft (203) is connected to the output end of the centrifugal drive unit (3).

7. The butterfly door damper of the cone fan according to claim 6, characterized in that: The rotating shaft (203) is perpendicular to the output end of the centrifugal drive unit (3).

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