A dehumidifier rotary wheel driving tensioning mechanism

Abstract

This utility model discloses a dehumidifier rotary drive tensioning mechanism, including a first U-shaped rod, a second U-shaped rod rotatably connected to the first U-shaped rod, a tensioning wheel rotatably connected to one side of the second U-shaped rod, and an elastic component disposed between the first U-shaped rod and the second U-shaped rod. The first U-shaped rod has multiple first rotating holes. A pin is detachably connected to the first U-shaped rod, and the pin can be selectively located within any of the first rotating holes. A scale is provided at one end of the pin. The mechanism adopts a modular design, making installation convenient and highly reusable; it can be flexibly adjusted according to specific installation conditions. It has high structural strength, low manufacturing difficulty and cost; it is not only simple to process but also has high radial strength, increasing reliability. The scale facilitates intuitive observation of the included angle and its changes, allowing for timely adjustments.

Description

Technical Field

[0001] This utility model belongs to the field of dehumidifier rotor technology, and in particular relates to a dehumidifier rotor drive tensioning mechanism. Background Technology

[0002] As a core component of a dehumidifier, the dehumidifying impeller rotates slowly and continuously at a speed of 4-15 r / h during dehumidification operation. The rotation of the dehumidifying impeller is driven by a motor through a gearbox and then by the main drive wheel. The rotation of the impeller can be driven by belt drive or chain drive, but both of these methods require a tensioning mechanism between the drive belt or chain. This is because the drive belt and chain will stretch over time, and the length of the belt or chain cannot be perfectly matched during the installation and manufacturing of the drive. The excess part is tightened by a tensioning mechanism, which ensures both convenient operation and stable and reliable drive.

[0003] Chinese patent document CN105546065A discloses a rotary drive device, which includes a motor, a transmission wheel, a transmission belt, and a tensioning wheel. The motor is mounted and fixed on the rotary frame via a mounting bracket assembly. The tensioning wheel is mounted on the mounting bracket assembly via an elastic tensioning mechanism. The tensioning wheel is located on the outside of the transmission belt, contacting and pressing the transmission belt against it. The tensioning wheel tensions the transmission belt in real time via the elastic tensioning mechanism. The elastic tensioning mechanism effectively ensures that the tensioning wheel is properly tensioned after the transmission belt loosens due to plastic deformation. The connecting rod has a first mounting hole, a second mounting hole, and a third mounting hole, allowing the connecting rod, tensioning wheel, and spring to adjust their respective installation positions according to the diameter, thickness, and rotational speed of the rotary wheel. The tensioning wheel and elastic tensioning mechanism have wide applicability and good versatility, reducing costs.

[0004] Currently, the drive tensioning mechanism used in dehumidification rotary drive is mostly made by custom machining, which is expensive. Due to the narrow installation location of the drive tensioning mechanism, installation is inconvenient and the structural reliability is poor.

[0005] Specifically, as described in the aforementioned patent, a small cross-section of the connecting rod results in poor deformation resistance and low structural stability; a large cross-section increases manufacturing difficulty and processing costs, and the assembly of the spring must also be considered, meaning the cross-section cannot be increased indefinitely. Furthermore, the connecting rod has low reusability; when faced with dehumidifying wheels of different diameters and different installation positions, adjustments to the installation position and angle of the connecting rod, as well as the magnitude of its elasticity, are required. Utility Model Content

[0006] To overcome the technical problems of low reusability, poor structural stability, or high manufacturing difficulty and processing cost of connecting rods used in existing tensioning drive belts, one objective of this utility model is to provide a dehumidifier rotor drive tensioning mechanism. This mechanism incorporates a first U-shaped rod and a second U-shaped rod with a U-shaped cross-section, reducing manufacturing costs and difficulty while increasing structural stability. Furthermore, multiple first rotating holes are provided on the first U-shaped rod for mounting the second U-shaped rod, increasing the flexibility of the first U-shaped rod's mounting position and making it applicable to a wider range of scenarios.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a dehumidifier rotary drive tensioning mechanism, comprising a first U-shaped rod disposed on a dehumidifier, a second U-shaped rod rotatably connected to the first U-shaped rod at one end, a tensioning wheel rotatably connected to one side of the second U-shaped rod, and an elastic component disposed between the first U-shaped rod and the second U-shaped rod; wherein, the first U-shaped rod is provided with a plurality of first rotating holes evenly arranged along its length direction; a pin detachably connected to the first U-shaped rod and rotatably connected to the second U-shaped rod is provided, the pin being selectively located in any of the first rotating holes; one end of the pin is provided with a scale for monitoring the included angle between the first U-shaped rod and the second U-shaped rod.

[0008] The dial facilitates observation of the angle between the first U-shaped rod and the second U-shaped rod. When the angle between the first U-shaped rod and the second U-shaped rod is too small or the change in the angle is too large, it indicates that the elastic deformation length of the transmission belt used for tensioning is too long, and the tensioning wheel can no longer provide sufficient tension. Slippage or tooth skipping is likely to occur on the transmission mechanism, and the transmission belt should be adjusted or replaced in time.

[0009] Furthermore, the cross-sectional shape of the first U-shaped rod and the second U-shaped rod is U-shaped; the opening direction of the first U-shaped rod is directly opposite to the opening direction of the second U-shaped rod.

[0010] The bending of the first U-shaped rod and the second U-shaped rod increases their radial strength, resulting in higher structural strength. The entire structure is manufactured using sheet metal processing, which reduces manufacturing costs.

[0011] Optionally, the elastic component is a torsion spring; the torsion spring is disposed on the outer periphery of the pin, and the two ends of the torsion spring abut against the inner bottom of the first U-shaped rod and the inner bottom of the second U-shaped rod, respectively; the elastic force of the torsion spring is used to rotate the first U-shaped rod and the second U-shaped rod in a direction away from each other.

[0012] Optionally, the elastic component is a tension spring; the first U-shaped rod has a plurality of first hanging holes evenly arranged along its length on its two opposite sidewalls; the second U-shaped rod has a plurality of second hanging holes evenly arranged along its length on its two opposite sidewalls; the two ends of the tension spring are respectively disposed in the first hanging hole and the second hanging hole.

[0013] The elastic component is also more flexible in its configuration, capable of applying tension in two opposite directions, further expanding its applicability and increasing its reusability; different positions of the first and second hanging holes can also produce different elastic forces.

[0014] Specifically, an arc-shaped groove is provided through the dial, and the center of the arc-shaped groove is located on the central axis of the pin; the second U-shaped rod is provided with a positioning hole that is directly opposite the arc-shaped groove.

[0015] Preferably, the inner wall of the positioning hole is provided with threads; a stud is provided in the positioning hole located in the arc-shaped groove.

[0016] Furthermore, the second U-shaped rod is provided with a plurality of second rotating holes evenly arranged along its length; the second U-shaped rod is provided with a threaded shaft that is rotatably connected to the tensioning wheel; the threaded shaft may be selectively located in any of the second rotating holes.

[0017] Specifically, the threaded shaft is provided with two retaining rings located at both ends of the tensioning wheel; the threaded shaft is provided with four nuts located on both sides of the second U-shaped rod.

[0018] The second U-shaped rod also has multiple different mounting positions of the tensioning wheel, which can apply tension at different positions on the transmission belt according to the actual application.

[0019] Preferably, the length of the second U-shaped rod is greater than the length of the first U-shaped rod.

[0020] Preferably, one side of the second U-shaped rod is located inside the opening of the first U-shaped rod.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. This utility model adopts a modular design, which is convenient to install and highly reusable; the installation position of the second U-shaped rod, the installation position of the tension wheel, the direction of the spring force, and the magnitude of the tension spring force can all be flexibly adjusted according to the specific installation conditions.

[0023] 2. This utility model has high structural strength, low manufacturing difficulty and low manufacturing cost; the first U-shaped rod and the second U-shaped rod are made by sheet metal bending, which not only makes the processing simple, but also has high radial strength, which increases the reliability of the drive tensioning mechanism.

[0024] 3. This utility model is equipped with a scale for monitoring the included angle between the first U-shaped rod and the second U-shaped rod, which makes it easy to observe the included angle and the change in the size of the included angle directly. This serves as a basis for judging the tension of the tensioning wheel, so that timely adjustments can be made to avoid slippage or tooth skipping in the transmission part. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a front structural diagram of the present invention;

[0027] Figure 3 This is a cross-sectional structural diagram of BB in the figure of this utility model;

[0028] Figure 4 This is a schematic diagram of the scale of the present invention.

[0029] In the diagram: 1. First U-shaped rod; 11. First rotating hole; 12. First hanging hole; 2. Second U-shaped rod; 21. Second rotating hole; 22. Second hanging hole; 3. Tensioning wheel; 4. Tension spring; 5. Fastening screw; 6. Pin; 7. Threaded shaft; 71. Snap ring; 72. Nut; 8. Dial; 81. Arc groove; 82. Ruler. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or 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.

[0034] See Figures 1-4 A dehumidifier rotary drive tensioning mechanism includes a first U-shaped rod 1 disposed on the dehumidifier, a second U-shaped rod 2 rotatably connected at one end to the first U-shaped rod 1, a tensioning wheel 3 rotatably connected to one side of the second U-shaped rod 2, and an elastic component disposed between the first U-shaped rod 1 and the second U-shaped rod 2.

[0035] The cross-sectional shape of the first U-shaped rod 1 and the second U-shaped rod 2 is U-shaped; the opening direction of the first U-shaped rod 1 is directly opposite to the opening direction of the second U-shaped rod 2; the length of the second U-shaped rod 2 is greater than the length of the first U-shaped rod 1; one side of the second U-shaped rod 2 is located inside the opening of the first U-shaped rod 1; a fastening screw 5 for installing the first U-shaped rod 1 is provided at the inner bottom of the first U-shaped rod 1.

[0036] The first U-shaped rod 1 is provided with a plurality of first rotating holes 11 evenly arranged along its length direction; the first U-shaped rod 1 is detachably connected to a pin 6 that is rotatably connected to the second U-shaped rod 2, and the pin 6 can be selectively located in any of the first rotating holes 11.

[0037] Optionally, the elastic component is a torsion spring; the torsion spring is disposed on the outer periphery of the pin 6, and the two ends of the torsion spring abut against the inner bottom of the first U-shaped rod 1 and the inner bottom of the second U-shaped rod 2, respectively; the elastic force of the torsion spring is used to make the first U-shaped rod 1 and the second U-shaped rod 2 rotate in a direction away from each other.

[0038] Optionally, the elastic component is a tension spring 4; the first U-shaped rod 1 has a plurality of first hanging holes 12 evenly arranged along its length on its two opposite side walls; the second U-shaped rod 2 has a plurality of second hanging holes 22 evenly arranged along its length on its two opposite side walls; the two ends of the tension spring 4 are respectively disposed in the first hanging hole 12 and the second hanging hole 22.

[0039] One end of the pin 6 is provided with a scale 8 for monitoring the included angle between the first U-shaped rod 1 and the second U-shaped rod 2; an arc-shaped groove 81 is provided through the scale 8, and the center of the arc-shaped groove 81 is located on the central axis of the pin 6; the second U-shaped rod 2 is provided with a positioning hole that is directly opposite the arc-shaped groove 81; the positioning hole coincides with one of the second hanging holes 22; the inner wall of the positioning hole is provided with threads; a stud is provided in the positioning hole located in the arc-shaped groove 81; a scale ruler 82 is provided on one side of the arc-shaped groove 81 on the scale 8.

[0040] The second U-shaped rod 2 is provided with a plurality of second rotating holes 21 evenly arranged along its length direction; the second U-shaped rod 2 is provided with a threaded shaft 7 that is rotatably connected to the tensioning wheel 3; the threaded shaft 7 can be selectively located in any of the second rotating holes 21.

[0041] The threaded shaft 7 is provided with two retaining rings 71 located at both ends of the tensioning wheel 3; the threaded shaft 7 is provided with four nuts 72 located on both sides of the second U-shaped rod 2, wherein the nuts 72 closer to the tensioning wheel 3 are extended nuts.

[0042] Specifically: The tensioning wheel 3 is a standard blank, then machined with holes and snap ring grooves. When belt drive is used, the tensioning wheel 3 is a pulley; when chain drive is used, the tensioning wheel 3 is a sprocket. The first U-shaped rod 1 and the second U-shaped rod 2 are made of sheet metal. All holes and sheet metal are cut out using CNC laser cutting and then bent into U-shaped groove structures. This structure provides sufficient structural strength for the entire drive tensioning mechanism. All other parts are standard parts.

[0043] During installation, the rotation shafts of the first U-shaped rod 1 and the second U-shaped rod 2 are fixed using a Ф10X38 pin 6, and the other end of the pin 6 is secured by a retaining spring. A deep groove ball bearing is installed on the shaft core of the tension wheel 3, and two retaining springs 71 are installed on both sides of the bearing to limit its movement and prevent it from slipping out of the tension wheel 3. An M10X90 bolt secures the tension wheel 3 with the bearing installed by an M10X25 machined nut. The entire tension wheel 3 is then inserted into the second rotating hole 21 and secured by three M10 nuts, thus completing the installation of the entire drive tensioning mechanism assembly.

[0044] In use, rotate the entire drive tensioning mechanism assembly to the installation position and then tighten the M6X16 fastening screws 5. Install one tension spring 4 between each of the two opposite sides of the first U-shaped rod 1 and the second U-shaped rod 2. Press the tensioning wheel 3 onto the belt or chain to complete the installation of the entire drive tensioning mechanism.

[0045] The drive tensioning mechanism manufactured in this way has high structural strength and reliability. The reduction in the number of processed parts significantly reduces costs. The entire drive tensioning mechanism can be installed as a single component outside the dehumidifier. After tightening two fastening screws in a narrow position, the installation of the entire drive tensioning mechanism is completed. This makes the installation more convenient and faster.

[0046] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A dehumidifier rotary drive tensioning mechanism, characterized in that: The device includes a first U-shaped rod mounted on a dehumidifier, a second U-shaped rod rotatably connected to the first U-shaped rod at one end, a tensioning wheel rotatably connected to one side of the second U-shaped rod, and an elastic component disposed between the first U-shaped rod and the second U-shaped rod. The first U-shaped rod has a plurality of first rotating holes evenly arranged along its length. A pin detachably connected to the first U-shaped rod and rotatably connected to the second U-shaped rod is provided, and the pin can be selectively located within any of the first rotating holes. One end of the pin is provided with a scale for monitoring the angle between the first U-shaped rod and the second U-shaped rod.

2. The tensioning mechanism of claim 1, wherein: The cross-sectional shape of the first U-shaped rod and the second U-shaped rod is U-shaped; the opening direction of the first U-shaped rod is directly opposite to the opening direction of the second U-shaped rod.

3. The tensioning mechanism of claim 2, wherein: The elastic component is a torsion spring; the torsion spring is disposed on the outer periphery of the pin, and the two ends of the torsion spring abut against the inner bottom of the first U-shaped rod and the inner bottom of the second U-shaped rod, respectively; the elastic force of the torsion spring is used to rotate the first U-shaped rod and the second U-shaped rod in a direction away from each other.

4. The tensioning mechanism of claim 2, wherein: The elastic component is a tension spring; the first U-shaped rod has multiple first hanging holes evenly arranged along its length on its two opposite sidewalls; the second U-shaped rod has multiple second hanging holes evenly arranged along its length on its two opposite sidewalls; the two ends of the tension spring are respectively located in the first hanging hole and the second hanging hole.

5. A tensioning mechanism according to any one of claims 1-4, characterized in that: An arc-shaped groove is provided through the dial, and the center of the arc-shaped groove is located on the central axis of the pin; the second U-shaped rod is provided with a positioning hole that is directly opposite the arc-shaped groove.

6. The tensioning mechanism of claim 5, wherein: The inner wall of the positioning hole is provided with threads; a stud is provided in the positioning hole located in the arc-shaped groove.

7. A tensioning mechanism according to any one of claims 1-4, characterized in that: The second U-shaped rod is provided with a plurality of second rotating holes evenly arranged along its length; the second U-shaped rod is provided with a threaded shaft that is rotatably connected to the tensioning wheel; the threaded shaft may be located in any of the second rotating holes.

8. The tensioning mechanism of claim 7, wherein: The threaded shaft is provided with two retaining rings located at both ends of the tensioning wheel; the threaded shaft is provided with four nuts located on both sides of the second U-shaped rod.

9. The tensioning mechanism as described in any one of claims 1-4, characterized in that: The length of the second U-shaped rod is greater than the length of the first U-shaped rod.

10. The tensioning mechanism as described in any one of claims 1-4, characterized in that: One side of the second U-shaped rod is located inside the opening of the first U-shaped rod.

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