High-temperature fan with adjustable air inlet rate

Abstract

The utility model discloses a high-temperature fan with adjustable air inlet rate, which relates to the technical field of fans, and comprises a fan base, a fan volute is fixedly mounted on the fan base, an air outlet is arranged on the fan volute, a butt flange is arranged on the air outlet, an adjusting mechanism is arranged in the air outlet, and the adjusting mechanism is connected with the fan volute. The adjusting mechanism comprises a positioning seat fixedly mounted on the inner wall of the air outlet, a movable shaft is rotatably mounted on the positioning seat, an adjusting turning plate is fixedly mounted on the movable shaft, a worm gear is fixedly mounted at one end of the movable shaft, a worm is rotatably mounted below the worm gear, and a cleaning mechanism is arranged above the adjusting turning plate. A driving shaft is fixedly installed on the worm, and a hand wheel is fixedly installed at one end of the driving shaft. According to the high-temperature fan with the adjustable air inlet amount, the adjusting mechanism can adjust the air inlet amount, and the adjusting mechanism is used in cooperation with the cleaning mechanism, so that a user can conveniently clean the adjusting turning plate.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically a high-temperature fan with adjustable air intake. Background Technology

[0002] High-temperature fans are special types of fans designed for use in high-temperature environments, such as the boiler and drying industries. Their materials possess strong resistance to high temperatures and pressures, and they typically operate within a temperature range of 100~180℃. High-temperature fans mainly consist of an impeller, casing, air inlet, motor, connector, and cooling fan blades. The impeller is a multi-blade single-inlet centrifugal impeller made of high-quality galvanized steel or cold-rolled steel. The blades are designed based on aerodynamic principles, ensuring excellent airflow performance, high efficiency, and stable operation.

[0003] Inside the fan's outlet, a specially designed adjusting flap is used to precisely control the airflow by changing its opening degree. However, with prolonged operation, dust and other impurities inevitably accumulate on the adjusting flap. This accumulation not only affects the fan's performance but may also reduce its output efficiency. Regular cleaning of the adjusting flap is essential to maintain the fan's normal operating condition and extend its lifespan. However, since the adjusting flap is located inside the outlet, cleaning it requires disassembling the outlet ductwork, a relatively cumbersome process that causes inconvenience for users. Summary of the Invention

[0004] The purpose of this invention is to provide a high-temperature fan with adjustable air intake to solve the problem of inconvenient cleaning of the flap in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature fan with adjustable air intake, comprising a fan base, a fan volute fixedly mounted on the fan base, an air outlet on the fan volute, a connecting flange on the air outlet, an adjustment mechanism inside the air outlet, the adjustment mechanism comprising a positioning seat fixedly mounted on the inner wall of the air outlet, a movable shaft rotatably mounted on the positioning seat, an adjustment flap fixedly mounted on the movable shaft, a worm gear fixedly mounted at one end of the movable shaft, a worm rotatably mounted below the worm gear, and a cleaning mechanism above the adjustment flap.

[0006] Preferably, a drive shaft is fixedly mounted on the worm gear, and a handwheel is fixedly mounted on one end of the drive shaft.

[0007] Preferably, the positioning seat has a movable hole, the movable shaft is rotatably mounted on the positioning seat through the movable hole, and the positioning seat is fixedly mounted on the inner wall of the air outlet by bolts.

[0008] Preferably, the adjusting flap is rotatably mounted inside the air outlet via a movable shaft, the positioning seat has a rotating hole, the drive shaft is rotatably mounted inside the positioning seat via the rotating hole, and the worm is rotatably mounted below the worm wheel via the drive shaft, with the worm wheel and worm meshing together.

[0009] Preferably, the cleaning mechanism includes a drive motor fixedly installed on the outside of the air outlet and a reciprocating lead screw rotatably installed inside the air outlet. A lead screw slider is rotatably installed on the reciprocating lead screw, a drive frame is fixedly installed on the lead screw slider, a cleaning brush is fixedly installed on the drive frame, and a coupling is fixedly installed at the output end of the drive motor.

[0010] Preferably, a motor frame is provided on the outside of the air outlet, and the drive motor is fixedly installed on the outside of the air outlet through the motor frame.

[0011] Preferably, bearings are provided at both ends of the reciprocating lead screw, the reciprocating lead screw is rotatably installed in the air outlet through the bearings, one end of the reciprocating lead screw is fixedly installed to the output end of the drive motor through a coupling, the drive frame is movably installed in the air outlet through the lead screw slider, and the cleaning brush is movably installed above the adjusting flap through the drive frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, rotating the handwheel drives the drive shaft to rotate. The rotation of the drive shaft drives the worm gear to rotate, which in turn causes the worm wheel to rotate. The rotation of the worm wheel causes the movable shaft to rotate, which ultimately controls the rotation of the adjusting flap, thereby controlling the opening degree of the adjusting flap to regulate the air intake.

[0014] 2. In this application, after the adjustment flap is adjusted to a horizontal state, the drive motor can be started. After the motor starts, it will drive the reciprocating screw to rotate. Subsequently, the screw slider will move back and forth under the drive of the reciprocating screw. During this process, the drive frame will also move back and forth, thereby causing the end of the cleaning brush to reciprocate along the surface of the adjustment flap, so as to achieve effective cleaning of the adjustment flap. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;

[0018] Figure 4 This utility model Figure 3Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the cleaning mechanism of this utility model.

[0020] The following are the labeling elements in the diagram: 1. Fan base; 2. Fan volute; 3. Air outlet; 4. Connecting flange; 5. Adjustment mechanism; 501. Positioning seat; 502. Movable shaft; 503. Adjustment flap; 504. Handwheel; 505. Drive shaft; 506. Worm gear; 507. Worm; 6. Cleaning mechanism; 601. Drive frame; 602. Cleaning brush; 603. Reciprocating lead screw; 604. Lead screw slider; 605. Coupling; 606. Drive motor. Detailed Implementation

[0021] 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.

[0022] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a high-temperature fan with adjustable air intake, including a fan base 1, a fan volute 2 fixedly installed on the fan base 1, an air outlet 3 on the fan volute 2, a connecting flange 4 on the air outlet 3, an adjustment mechanism 5 inside the air outlet 3, and a cleaning mechanism 6 above the adjustment flap 503. The adjustment mechanism 5 can adjust the air intake, and the adjustment mechanism 5 and the cleaning mechanism 6 work together to facilitate the user to clean the adjustment flap 503.

[0023] like Figure 2 , Figure 3 and Figure 4 As shown, the adjustment mechanism 5 includes a positioning seat 501 fixedly installed on the inner wall of the air outlet 3. A movable shaft 502 is rotatably installed on the positioning seat 501. An adjustment flap 503 is fixedly installed on the movable shaft 502. A worm gear 506 is fixedly installed at one end of the movable shaft 502. A worm 507 is rotatably installed below the worm gear 506. A drive shaft 505 is fixedly installed on the worm 507. A handwheel 504 is fixedly installed at one end of the drive shaft 505. A movable hole is provided on the positioning seat 501. The movable shaft 502 is rotatably installed on the positioning seat 501 through the movable hole. The positioning seat 501 is fixedly installed on the inner wall of the air outlet 3 by bolts.

[0024] Specifically, rotating the handwheel 504 directly drives the drive shaft 505 to rotate. The rotation of the drive shaft 505, in turn, causes the worm gear 507 to rotate. The rotation of the worm gear 507 is transmitted to the worm wheel 506, causing it to rotate as well. The rotation of the worm wheel 506 then drives the connected movable shaft 502 to rotate. The rotation of the movable shaft 502 ultimately causes the adjustment flap 503 to rotate. By adjusting the opening size of the flap 503, effective control of the air intake volume is achieved.

[0025] like Figure 2 and Figure 4 As shown, the cleaning mechanism 6 includes a drive motor 606 fixedly installed on the outside of the air outlet 3 and a reciprocating lead screw 603 rotatably installed inside the air outlet 3. A lead screw slider 604 is rotatably installed on the reciprocating lead screw 603. A drive frame 601 is fixedly installed on the lead screw slider 604. A cleaning brush 602 is fixedly installed on the drive frame 601. A coupling 605 is fixedly installed at the output end of the drive motor 606. A motor frame is provided on the outside of the air outlet 3. The drive motor 606 is fixedly installed on the outside of the air outlet 3 through the motor frame.

[0026] Specifically, when performing equipment maintenance and cleaning, the first step is to ensure that the adjusting flap 503 is in a horizontal position. Once the adjusting flap 503 is adjusted to a balanced position, the next step is to start the drive motor 606. Once activated, the drive motor 606 will begin to rotate, thereby driving the connected reciprocating lead screw 603. As the reciprocating lead screw 603 rotates, it causes the lead screw slider 604 to move back and forth, and the drive frame 601 will move back and forth with the movement of the lead screw slider 604. During the back-and-forth movement of the drive frame 601, it pushes the end of the cleaning brush 602, causing it to adhere closely to the surface of the adjusting flap 503 and perform a back-and-forth cleaning motion. This removes dirt and impurities from one side of the adjusting flap 503. Once this side of the adjusting flap 503 is thoroughly cleaned, the operator can rotate the adjusting flap 503 180 degrees using the handwheel 504. This rotation operation allows the other side of the adjusting flap 503 to also be covered by the cleaning brush 602, thereby achieving the cleaning of the other side of the adjusting flap 503.

[0027] Working principle: During operation, the airflow generated by the fan is discharged through the air outlet 3. During discharge, the handwheel 504 can be rotated, which in turn drives the drive shaft 505. The drive shaft 505 then drives the worm gear 507, which in turn drives the worm wheel 506. The worm wheel 506 then drives the movable shaft 502, which in turn drives the adjusting flap 503. This controls the opening size of the adjusting flap 503, thus adjusting the airflow. Simultaneously, rotating the handwheel 504 can level the adjusting flap 503. After leveling the adjusting flap 503, the drive motor 606 can be started. After the machine 606 is activated, it will drive the reciprocating lead screw 603 to rotate. After the reciprocating lead screw 603 rotates, it will drive the lead screw slider 604 to move back and forth. When the lead screw slider 604 moves back and forth, it will drive the drive frame 601 to move back and forth. During the back and forth movement of the drive frame 601, it will drive the end of the cleaning brush 602 to move back and forth against the surface of the adjusting flap 503, thereby cleaning one side of the adjusting flap 503. After one side of the adjusting flap 503 is cleaned, the adjusting flap 503 can be rotated 180° by the handwheel 504 to facilitate cleaning the other side of the adjusting flap 503. During the cleaning process, the fan can be turned on, and the impurities generated during cleaning will be carried out by the airflow generated by the fan.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-temperature fan with adjustable air intake, comprising a fan base (1), a fan volute (2) fixedly installed on the fan base (1), an air outlet (3) provided on the fan volute (2), and a butt flange (4) provided on the air outlet (3), characterized in that: The air outlet (3) is provided with an adjusting mechanism (5), the adjusting mechanism (5) includes a positioning seat (501) fixedly installed on the inner wall of the air outlet (3), the positioning seat (501) is rotatably installed with an activity shaft (502), the activity shaft (502) is fixedly installed with an adjusting flap (503), one end of the activity shaft (502) is fixedly installed with a worm wheel (506), the worm wheel (506) is rotatably installed with a worm (507) below, the adjusting flap (503) is provided with a cleaning mechanism (6) above.

2. The high-temperature air fan with adjustable air intake according to claim 1, characterized in that: The worm (507) is fixedly installed with a driving shaft (505), one end of the driving shaft (505) is fixedly installed with a hand wheel (504).

3. The high-temperature air fan with adjustable air intake according to claim 2, characterized in that: The positioning seat (501) is provided with an activity hole, the activity shaft (502) is rotatably installed on the positioning seat (501) through the activity hole, and the positioning seat (501) is fixedly installed on the inner wall of the air outlet (3) through bolts.

4. The high-temperature air fan with adjustable air intake according to claim 3, characterized in that: The adjusting flap (503) is rotatably installed in the air outlet (3) through the activity shaft (502), the positioning seat (501) is provided with a rotating hole, the driving shaft (505) is rotatably installed in the positioning seat (501) through the rotating hole, the worm (507) is rotatably installed below the worm wheel (506) through the driving shaft (505), and the worm wheel (506) and the worm (507) are engaged together.

5. The high-temperature air fan with adjustable air intake according to claim 4, characterized in that: The cleaning mechanism (6) includes a driving motor (606) fixedly installed on the outside of the air outlet (3) and a reciprocating screw rod (603) rotatably installed in the air outlet (3), the reciprocating screw rod (603) is rotatably installed with a screw rod sliding block (604), the screw rod sliding block (604) is fixedly installed with a driving frame body (601), the driving frame body (601) is fixedly installed with a cleaning brush (602), and the output end of the driving motor (606) is fixedly installed with a shaft coupling (605).

6. The high-temperature air fan with adjustable air intake according to claim 5, characterized in that: The air outlet (3) is provided with a motor bracket, and the driving motor (606) is fixedly installed on the outside of the air outlet (3) through the motor bracket.

7. The high-temperature air fan with adjustable air intake according to claim 6, characterized in that: The reciprocating screw rod (603) is rotatably installed in the air outlet (3) through bearings at the edges of both ends of the reciprocating screw rod (603), one end of the reciprocating screw rod (603) is fixedly installed on the output end of the driving motor (606) through the shaft coupling (605), the driving frame body (601) is movably installed in the air outlet (3) through the screw rod sliding block (604), and the cleaning brush (602) is movably installed above the adjusting flap (503) through the driving frame body (601).

Images