A fan valve shaft fixing device

Abstract

This utility model relates to the field of fan technology and proposes a fan valve shaft fixing device, including a base, and further including: a clamping mechanism, the clamping mechanism including an upper clamping block and a lower clamping block, the upper clamping block and the lower clamping block having arc-shaped grooves, a housing inside the arc-shaped grooves, and multiple rotating columns inside the housing; an adjusting mechanism, the adjusting mechanism including a rotating cylinder, the top of the rotating cylinder having a mounting plate rotating thereon, and a screw threadedly connected inside the rotating cylinder, the bottom end of the screw being connected to the base; an anti-rotation mechanism, the anti-rotation mechanism being connected to the mounting plate and the base; and a guiding mechanism, the guiding mechanism being used to guide the upper clamping block and the lower clamping block. This device uses the arc-shaped grooves of the upper clamping block and the lower clamping block to cooperate with the rotating columns, closely conforming to the shape of the shaft, which not only provides stable support and reduces friction, but also allows for flexible adjustment of the clamping force according to the shaft thickness via bolts. The adjusting mechanism uses the rotating cylinder and the screw to easily adjust the height of the clamping mechanism, and the rotating ring can be locked in position to ensure stability after adjustment.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically to a fan valve shaft fixing device. Background Technology

[0002] In a fan system, the stable fixing and flexible adjustment of the valve shaft are crucial. Traditional fan valve shaft fixing devices have revealed many problems in practical applications. On the one hand, the clamping mechanism design is poor. Common clamping blocks are difficult to fit tightly to the shape of the fan valve shaft, resulting in the inability to provide stable support for the shaft during clamping. This not only affects the normal rotation and adjustment of the shaft, but may also accelerate the wear of the shaft and shorten its service life due to excessive friction between the shaft and the clamping block. Moreover, traditional clamping methods are mostly fixed structures, making it difficult to flexibly adjust the clamping force according to the thickness of the shaft, and the clamping effect is difficult to guarantee.

[0003] On the other hand, existing adjustment mechanisms have obvious defects when dealing with fan valve shafts with different installation height requirements. Some adjustment methods are complicated to operate, requiring the use of multiple tools for tedious disassembly and installation, which consumes a lot of time and manpower. Even if some devices can adjust the height, the adjustment process is difficult to control smoothly, and over-adjustment or under-adjustment is likely to occur. More importantly, the adjusted height lacks an effective locking mechanism. During the operation of the fan, the adjustment mechanism is prone to accidental rotation due to external force vibration and other factors, which causes the height of the clamping mechanism to change, thereby affecting the normal operation of the fan valve shaft. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a fan valve shaft fixing device to solve the problems of the prior art mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fan valve shaft fixing device, including a base, and further comprising:

[0008] A clamping mechanism, comprising an upper clamping block and a lower clamping block, both the upper and lower clamping blocks being provided with arc-shaped grooves, a housing being connected within the arc-shaped grooves, and multiple rotating columns being rotatably connected within the housings; the upper clamping block being provided with multiple countersunk holes, bolts being provided within the countersunk holes, and the bolts being threadedly connected to the lower clamping block.

[0009] An adjustment mechanism is provided, comprising a rotating cylinder, a mounting plate rotatably connected to the top of the rotating cylinder, the mounting plate being fixedly connected to the lower clamping block, a threaded part being provided inside the rotating cylinder, and a screw being threadedly connected inside the rotating cylinder, the bottom end of the screw being fixedly connected to the base.

[0010] An anti-rotation mechanism, which is connected to the mounting plate and the base;

[0011] The guiding mechanism is used to guide the upper and lower clamping blocks.

[0012] Optionally, the anti-rotation mechanism includes four sliding cylinders, which are fixedly connected to the mounting plate. A sliding rod is slidably connected inside each sliding cylinder, and the bottom end of the sliding rod is fixedly connected to the base.

[0013] Optionally, the guiding mechanism includes four guiding plates, which are fixedly connected to the upper clamping block. The lower clamping block has four guiding openings, and the guiding plates slide in cooperation with the guiding openings.

[0014] Optionally, a first cushioning pad is connected to the bottom end of the base.

[0015] Optionally, a shim plate is connected to the bottom end of the first buffer pad, and a second buffer pad is connected to the bottom end of the shim plate.

[0016] Optionally, a swivel ring is screwed onto the screw.

[0017] Optionally, the top of the mounting plate is fixedly connected to multiple baffles, which are fixedly connected to the lower clamping block.

[0018] (III) Beneficial Effects

[0019] In summary, this utility model has at least one of the following beneficial technical effects:

[0020] 1. The fan valve shaft fixing device features an ingeniously designed upper and lower clamping blocks in its clamping mechanism. The arc-shaped grooves on the upper and lower clamping blocks, combined with the rotating column inside the housing, can closely fit the shape of the fan valve shaft, providing stable support during clamping. The presence of the rotating column greatly reduces the friction between the shaft and the clamping blocks, facilitating shaft rotation adjustment. The upper and lower clamping blocks are connected by bolts, making operation simple and allowing for flexible adjustment of the clamping force according to the shaft's thickness, ensuring a good clamping effect.

[0021] 2. The fan valve shaft fixing device has an adjustment mechanism that uses the threaded engagement of a rotating drum and a screw. Simply rotating the rotating drum allows for easy adjustment of the height of the lower clamping block and the entire clamping mechanism to accommodate fan valve shafts with different installation height requirements. The adjustment process is smooth and easy to control. After adjusting the height of the rotating drum, tightening the swivel ring on the screw locks the position of the rotating drum, preventing accidental rotation due to external forces or other factors, further ensuring the stability of the clamping mechanism after height adjustment. Attached Figure Description

[0022] Figure 1 This is a cross-sectional structural diagram of the disassembled present invention;

[0023] Figure 2 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0024] Figure 3 This utility model Figure 1 A magnified schematic diagram of the local structure at point B;

[0025] Figure 4 This is a schematic diagram of the overall structure of this utility model.

[0026] In the diagram: 1. Base; 2. Upper clamping block; 3. Lower clamping block; 4. Housing; 5. Rotating column; 6. Bolt; 7. Rotating cylinder; 8. Mounting plate; 9. Screw; 10. Slide cylinder; 11. Slide rod; 12. Guide plate; 13. First buffer pad; 14. Elevation plate; 15. Second buffer pad; 16. Rotary ring; 17. Baffle. Detailed Implementation

[0027] 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.

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Reference Figures 1-4A fan valve shaft fixing device includes a base 1, with a first buffer pad 13 connected to the bottom end of the base 1. The first buffer pad 13 can reduce the vibration transmission between the fixing device and the mounting surface, reduce the impact of fan operation vibration on the stability of the fixing device, and also play a certain role in protecting the mounting surface. A shim plate 14 is connected to the bottom end of the first buffer pad 13, and a second buffer pad 15 is connected to the bottom end of the shim plate 14. The shim plate 14 can be added as needed, and the shim plate 14 can adjust the overall height of the fixing device according to the actual installation environment, increasing the installation flexibility. The second buffer pad 15 further enhances the buffering effect, better isolates vibration, and ensures the stability of the entire fixing device in complex working environments. It also includes a clamping mechanism, which includes an upper clamping block 2 and a lower clamping block 3. Both the upper clamping block 2 and the lower clamping block 3 are provided with arc-shaped grooves, and a housing 4 is connected in the arc-shaped grooves. Multiple rotating columns 5 are rotatably connected in the housing 4. Multiple recesses are opened on the upper clamping block 2. A bolt 6 is installed inside the countersunk hole and is threadedly connected to the lower clamping block 3. The arc-shaped groove, in conjunction with the housing 4 and the rotating column 5, better conforms to the shape of the fan valve shaft, providing more stable support during clamping. The rotating column 5 reduces friction between the shaft and the clamping block, facilitating shaft rotation adjustment. The bolt 6 connects the upper and lower clamping blocks 3, simplifying clamping operations and allowing for flexible adjustment based on shaft thickness, ensuring good clamping performance. A guiding mechanism is used to guide the upper clamping block 2 and... The lower clamping block 3 is used for alignment. The alignment mechanism includes four guide plates 12, which are fixedly connected to the upper clamping block 2. The lower clamping block 3 has four guide openings, and the guide plates 12 slide with the guide openings. The sliding fit between the guide plates 12 and the guide openings can play a precise positioning role when installing the upper clamping block 2 and the lower clamping block 3, ensuring that the arc grooves of the upper and lower clamping blocks 3 are accurately aligned, thereby improving the clamping accuracy of the fan valve shaft and ensuring that the shaft maintains good coaxiality in the fixed state.

[0030] It should also be noted that the adjustment mechanism includes a rotating drum 7, with a mounting plate 8 rotatably connected to its top. The mounting plate 8 is fixedly connected to the lower clamping block 3. The rotating drum 7 has internal threads, and a screw 9 is threadedly connected to the internal threads of the rotating drum 7. The bottom end of the screw 9 is fixedly connected to the base 1. By rotating the rotating drum 7 and utilizing its threaded engagement with the screw 9, the height of the lower clamping block 3 and the entire clamping mechanism can be easily adjusted to accommodate fan valve shafts with different installation height requirements. The adjustment process is smooth and easy to control. A rotating ring 16 is screwed onto the screw 9. After the height of the rotating drum 7 is adjusted, tightening the rotating ring 16 locks the position of the rotating drum 7, preventing accidental rotation due to external forces or other factors, further ensuring the stability of the clamping mechanism after height adjustment. An anti-rotation mechanism is also included, which is connected to the mounting plate 8 and the base 1. The base 1 is connected; the anti-rotation mechanism includes four sliding cylinders 10, which are fixedly connected to the mounting plate 8. A sliding rod 11 is slidably connected inside the sliding cylinder 10, and the bottom end of the sliding rod 11 is fixedly connected to the base 1. The cooperation between the sliding cylinder 10 and the sliding rod 11 can effectively limit the rotation of the mounting plate 8 and the clamping mechanism during the height adjustment process, ensuring that the clamping mechanism always maintains a stable direction during adjustment and use, thus improving the stability and reliability of the entire fixing device. Multiple baffles 17 are fixedly connected to the top of the mounting plate 8, and the baffles 17 are fixedly connected to the lower clamping block 3. The baffles 17 enhance the connection strength between the mounting plate 8 and the lower clamping block 3, enabling them to work together better during operation, improving the structural stability of the entire clamping mechanism, and ensuring that the fan valve shaft will not loosen or deform due to force when it is fixed.

[0031] In summary, the working principle and process of this fan valve shaft fixing device are as follows: First, based on the actual installation environment, determine whether a shim plate 14 is needed. If so, place the shim plate 14 between the first buffer pad 13 and the second buffer pad 15. Adjust the overall height of the fixing device by increasing or decreasing the number of shims 14 to meet installation requirements. Then, place the lower clamping block 3 near the location where the fan valve shaft needs to be fixed, and place the fan valve shaft on the arc-shaped groove of the lower clamping block 3. Align the arc-shaped groove of the upper clamping block 2 with the arc-shaped groove of the lower clamping block 3, so that the rotating column 5 inside the housing 4 contacts the fan valve shaft. At this time, the guide plate 12 on the upper clamping block 2 should be inserted into the guide opening of the lower clamping block 3. With the sliding engagement of the guide port, the upper and lower clamping blocks 3 are precisely positioned to ensure accurate alignment of the arc grooves. Bolts 6 are passed through the countersunk holes of the upper clamping block 2 and threadedly connected to the lower clamping block 3. Tightening the bolts 6 ensures that the upper clamping block 2 and the lower clamping block 3 firmly clamp the fan valve shaft. If it is necessary to adjust the height of the lower clamping block 3 and the entire clamping mechanism to accommodate fan valve shafts with different installation height requirements, rotate the rotating drum 7 to move it up and down, thereby driving the mounting plate 8 and the lower clamping block 3 to move up and down to achieve height adjustment. After adjusting the height of the rotating drum 7, tighten the rotating ring 16 on the screw 9 to make it fit tightly against the rotating drum 7, locking the position of the rotating drum 7 and preventing the rotating drum 7 from rotating unexpectedly due to external forces or other factors, further ensuring the stability of the clamping mechanism after height adjustment.

[0032] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A fan valve shaft fixing device, comprising a base (1), characterized in that: Also includes: The clamping mechanism includes an upper clamping block (2) and a lower clamping block (3). Both the upper clamping block (2) and the lower clamping block (3) are provided with arc-shaped grooves. A housing (4) is connected in the arc-shaped grooves. Multiple rotating columns (5) are rotatably connected in the housing (4). Multiple countersunk holes are opened on the upper clamping block (2). Bolts (6) are provided in the countersunk holes. The bolts (6) are threadedly connected to the lower clamping block (3). The adjustment mechanism includes a rotating cylinder (7), the top end of which is rotatably connected to an installation plate (8), the installation plate (8) is fixedly connected to the lower clamping block (3), the rotating cylinder (7) is provided with a thread, and a screw (9) is threadedly connected to the rotating cylinder (7), the bottom end of which is fixedly connected to the base (1). An anti-rotation mechanism is connected to the mounting plate (8) and the base (1); The guiding mechanism is used to guide the upper clamping block (2) and the lower clamping block (3).

2. The fan valve shaft fixing device according to claim 1, characterized in that: The anti-rotation mechanism includes four sliding cylinders (10), which are fixedly connected to the mounting plate (8). A sliding rod (11) is slidably connected inside the sliding cylinder (10), and the bottom end of the sliding rod (11) is fixedly connected to the base (1).

3. The fan valve shaft fixing device according to claim 2, characterized in that: The guiding mechanism includes four guiding plates (12), which are fixedly connected to the upper clamping block (2). The lower clamping block (3) has four guiding openings, and the guiding plates (12) slide with the guiding openings.

4. The fan valve shaft fixing device according to claim 3, characterized in that: The bottom end of the base (1) is connected to a first buffer pad (13).

5. A fan valve shaft fixing device according to claim 4, characterized in that: The bottom end of the first buffer pad (13) is connected to a shim plate (14), and the bottom end of the shim plate (14) is connected to a second buffer pad (15).

6. A fan valve shaft fixing device according to claim 5, characterized in that: A swivel ring (16) is screwed onto the screw (9).

7. A fan valve shaft fixing device according to claim 6, characterized in that: The top of the mounting plate (8) is fixedly connected to a plurality of baffles (17), and the baffles (17) are fixedly connected to the lower clamping block (3).

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