Industrial fan rotating speed control device

Abstract

The utility model relates to the technical field of industrial fan accessory equipment, in particular to an industrial fan rotating speed control device which comprises a substrate and a protective shell, a resistance adjusting assembly is arranged on the substrate, an adjusting knob used in cooperation with the resistance adjusting assembly is arranged on the protective shell, and the resistance of the resistance adjusting assembly is changed through the adjusting knob. The fan rotating speed adjusting device has the advantage of multi-gear adjustment, meanwhile, the position of the adjusting rod is limited through the guide seat, so that the fan rotating speed adjusting device is more stable during rotation, adapts to frequent rotation and does not deflect or misplace, and the conductive seat is installed at the end of the adjusting rod, so that the rotating speed of the fan is adjusted. The conductive blocks connected with the conductive seat are installed on the two sides of the resistance coil, so that direct contact between the conductive seat and the resistance coil is replaced, abrasion of the conductive seat in the using process can be relieved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial fan accessories and equipment, specifically to an industrial fan speed control device. Background Technology

[0002] In industrial production, industrial fans are widely used for ventilation, heat dissipation, and air circulation. In actual industrial production, different processes and environmental conditions place different demands on the fan speed. For example, in high-temperature workshops, fans need to operate at higher speeds to achieve rapid heat dissipation; while in production processes where airflow stability is critical, such as electronic component manufacturing workshops, fan speeds need to be precisely controlled to avoid strong winds damaging precision components.

[0003] However, currently available industrial fan speed control devices have several shortcomings. Traditional speed control methods often only offer a few fixed speed settings, failing to provide continuous and precise speed adjustments to meet the complex and ever-changing demands of industrial production. Furthermore, some industrial fan speed control devices have complex structures, leading to high manufacturing costs and increased procurement expenses for companies. These complexities also require significant manpower, resources, and time for installation and maintenance. In addition, the complex structure may reduce the device's stability, making it prone to malfunctions during long-term operation, affecting the continuity of industrial production, and increasing production risks and maintenance costs for companies. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an industrial fan speed control device that can change the speed of an industrial fan, has a more stable structure, and a longer service life.

[0005] To achieve the above objectives, this utility model embodiment adopts the following technical solution: an industrial fan speed control device, comprising a base plate and a protective housing, wherein a resistance adjustment component is disposed on the base plate, and an adjustment knob for use with the resistance adjustment component is disposed on the protective housing, the resistance adjustment component comprising a resistance coil and a guide rod, an adjustment rod is disposed above the guide rod, one end of the adjustment rod is disposed with a conductive seat connected to the resistance coil, and the other end is disposed with a transmission rod connected to the adjustment knob, and the ends of the resistance coil and the guide rod are each provided with a wire connected to an external power source.

[0006] As a further improvement to the above technical solution:

[0007] The substrate is provided with a first placement slot and a second placement slot corresponding to the positions of the resistor coil and the guide rod. Both the first placement slot and the second placement slot are arc-shaped, and the gap between the openings gradually decreases from top to bottom.

[0008] The inner wall of the storage slot is provided with conductive blocks located on both sides of the resistor coil, and the upper part of the conductive blocks is provided with blind holes for connecting the conductive base.

[0009] An insulating seat is provided on the outer side of the conductive block, and a sliding groove corresponding to the position of the insulating seat is provided on the inner side wall of the storage groove.

[0010] The guide rod is provided with a guide seat, and the upper part of the guide seat is provided with a clip for connecting the adjusting rod.

[0011] The lower part of the transmission rod is rotatably connected to the base plate, and the upper part is provided with a connecting rod connected to the adjustment knob.

[0012] The connecting rod is a multi-faceted prism, and the bottom of the adjusting knob is provided with a plug hole corresponding to the position of the connecting rod.

[0013] The beneficial effects of this utility model embodiment are as follows: The industrial fan speed control device includes a base plate and a protective housing. The base plate is provided with a resistance adjustment component, and the protective housing is provided with an adjustment knob that works in conjunction with the resistance adjustment component. By adjusting the knob, the resistance of the resistance adjustment component is changed, thereby adjusting the fan speed. It has the advantage of multi-level adjustment. At the same time, the position of the adjustment rod is limited by the guide seat, making it more stable when rotating, adapting to frequent rotation, and preventing skewness and misalignment. Moreover, a conductive seat is installed at the end of the adjustment rod, and conductive blocks connected to the conductive seat are installed on both sides of the resistance coil, thereby replacing the direct contact between the conductive seat and the resistance coil, which can reduce the wear of the conductive seat during use and improve the service life of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the substrate in this utility model;

[0016] Figure 3 This is a cross-sectional view of the substrate of this utility model;

[0017] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0018] In the diagram: 1. Base plate; 2. Protective housing; 3. Adjustment knob; 4. Resistance coil; 5. Guide rod; 6. Adjustment rod; 7. Conductive seat; 8. Transmission rod; 9. Wire; 10. Storage slot one; 11. Storage slot two; 12. Conductive block; 13. Insulating seat; 14. Slide groove; 15. Guide seat; 16. Clamp; 17. Connecting rod; 18. Plug-in hole. Detailed Implementation

[0019] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] like Figure 1-4 As shown, the industrial fan speed control device of this embodiment includes a base plate 1 and a protective housing 2. An arc-shaped storage slot 10 and a storage slot 2 11 are formed on the base plate 1. A resistor coil 4 is placed in the storage slot 10 and connected to a wire 9 at one end. A guide rod 5 is placed in the storage slot 2 11 and connected to a wire 9 at one end. The entire device is connected to an external circuit through the two wires 9.

[0021] Next, a guide seat 15 is fitted onto the guide rod 5. The guide seat 15 slides along the guide rod 5, and a metal contact that is always in contact with the guide rod 5 is installed inside the guide seat 15. A clip 16 is installed on the upper part of the guide seat 15 to fix the adjusting rod 6. A conductive seat 7 connected to the resistance coil 4 is installed at the front end of the adjusting rod 6, and a transmission rod 8 is installed at the end. The transmission rod 8 is used to drive the adjusting rod 6 to rotate, thereby changing the position of the conductive seat 7 on the resistance coil 4. By changing the resistance, the fan speed is adjusted. The function of the clip 16 is to fix the middle part of the adjusting rod 6 when rotating, ensuring the stability of the rotation of the adjusting rod 6, thereby improving the service life of the entire device.

[0022] The inner wall of the storage slot 10 is provided with a sliding groove 14 located on both sides of the resistor coil 4. An insulating seat 13 is slidably installed in the sliding groove 14. A conductive block 12 is provided on the side of the insulating seat 13 facing the resistor coil 4. A blind hole is provided on the upper part of the conductive block 12 for inserting the conductive seat 7. The lower part of the adjusting rod 6 is provided with a conductor for connecting the conductive seat 7 and the metal contact to ensure that the entire circuit is in a continuous state. The design of the sliding groove 14 and the insulating seat 13 is to reduce the friction when the conductive seat 7 slides, and at the same time enhance the connection stability between the conductive seat 7 and the resistor coil 4, so as to avoid the conductive seat 7 from deforming and separating from the resistor coil 4 after long-term use, resulting in poor contact of the circuit. The opening width of the storage slot 10 gradually decreases from top to bottom, and the bottom is arc-shaped and fits against the outer wall of the resistor coil 4.

[0023] The transmission rod 8 is located at the end of the adjusting rod 6. The lower part of the transmission rod 8 is rotatably connected to the base plate 1, and the upper part is connected to the adjusting knob 3. The rotation of the adjusting knob 3 drives the adjusting rod 6 to rotate, thereby changing the contact point between the conductive base 7 and the resistance coil 4, and thus changing the speed of the ceiling fan. The upper part of the transmission rod 8 is connected to the insertion hole 18 by a polygonal prism-shaped connecting rod 17, which ensures the synchronous rotation of the transmission rod 8 and the adjusting knob 3. Alternatively, a structure of insertion plate and insertion slot can be used.

[0024] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0026] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0027] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An industrial fan speed control device, comprising a base plate (1) and a protective housing (2), characterized in that: A resistance adjustment assembly is provided on the substrate (1), and an adjustment knob (3) for use with the resistance adjustment assembly is provided on the protective housing (2); The resistance adjustment assembly includes a resistance coil (4) and a guide rod (5). An adjustment rod (6) is provided above the guide rod (5). One end of the adjustment rod (6) is provided with a conductive seat (7) connected to the resistance coil (4), and the other end is provided with a transmission rod (8) connected to the adjustment knob (3). The ends of the resistance coil (4) and the guide rod (5) are both provided with wires (9) connected to an external power source.

2. The industrial fan speed control device according to claim 1, characterized in that: The substrate (1) is provided with a first storage slot (10) and a second storage slot (11) corresponding to the positions of the resistor coil (4) and the guide rod (5). The first storage slot (10) and the second storage slot (11) are both arc-shaped, and the gap between the openings gradually decreases from top to bottom.

3. The industrial fan speed control device according to claim 2, characterized in that: The inner wall of the storage slot (10) is provided with conductive blocks (12) located on both sides of the resistor coil (4), and the upper part of the conductive block (12) is provided with a blind hole for connecting the conductive base (7).

4. The industrial fan speed control device according to claim 3, characterized in that: An insulating seat (13) is provided on the outer side of the conductive block (12), and a sliding groove (14) corresponding to the position of the insulating seat (13) is provided on the inner side wall of the storage groove (10).

5. The industrial fan speed control device according to claim 1, characterized in that: The guide rod (5) is provided with a guide seat (15), and the upper part of the guide seat (15) is provided with a clip (16) for connecting the adjusting rod (6).

6. The industrial fan speed control device according to claim 1, characterized in that: The lower part of the transmission rod (8) is rotatably connected to the base plate (1), and the upper part is provided with a connecting rod (17) connected to the adjustment knob (3).

7. The industrial fan speed control device according to claim 6, characterized in that: The connecting rod (17) is a multi-faceted prism, and the bottom of the adjusting knob (3) is provided with a plug hole (18) corresponding to the position of the connecting rod (17).

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