Damping fan

Abstract

The utility model provides a damping fan which comprises an impeller chamber, an air inlet cylinder is installed at the air inlet end of the impeller chamber, an air outlet cylinder is installed at the air outlet end of the impeller chamber, outer sound-absorbing cotton which is of a cylindrical structure formed by winding sheet-shaped sound-absorbing cotton is inserted in the air inlet cylinder and the air outlet cylinder, a plurality of second planes are machined on the outer surface of the outer sound-absorbing cotton, and the second planes are arranged on the outer surface of the outer sound-absorbing cotton. A plurality of first planes matched with the second planes are machined in the air inlet cylinder and the air outlet cylinder, the first planes are attached to the second planes, a sleeve is inserted in the outer sound absorption cotton, and inner sound absorption cotton of a cylindrical structure formed by winding sheet-shaped sound absorption cotton is inserted in the sleeve. The utility model has the beneficial effects that the vibration of the air inlet cylinder and the air outlet cylinder caused by high-speed air flow is reduced, and the noise is reduced.

Description

Technical Field

[0001] The utility model relates to a shock-absorbing fan, belonging to the technical field of fans. Background Art

[0002] The vortex fan is a kind of high-pressure fan, also called a ring fan. The air inlet end and the air outlet end of the impeller chamber in the vortex fan are respectively provided with an air inlet cylinder and an air outlet cylinder that are parallel to each other. The air inlet cylinder and the air outlet cylinder are arranged on the lower side of the motor in the vortex fan. When the vortex fan is working, the air flow passes through the air inlet cylinder and the air outlet cylinder at a high speed state. At this time, the high-speed air flow directly contacts the inner walls of the air inlet cylinder and the air outlet cylinder, thereby inducing vibration and generating relatively large noise. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a shock-absorbing fan to solve the problems raised in the above background art. The utility model reduces the vibration caused by the high-speed air flow to the air inlet cylinder and the air outlet cylinder.

[0004] To achieve the above purpose, the utility model is realized by the following technical solutions: A shock-absorbing fan includes an impeller chamber. An air inlet cylinder is installed at the air inlet end of the impeller chamber, and an air outlet cylinder is installed at the air outlet end of the impeller chamber. Outer sound-absorbing cotton formed by winding sheet-shaped sound-absorbing cotton into a cylindrical structure is inserted into both the air inlet cylinder and the air outlet cylinder. A plurality of second planes are processed on the outer surface of the outer sound-absorbing cotton. A plurality of first planes are processed in both the air inlet cylinder and the air outlet cylinder and are matched with the second planes. The first plane is attached to the second plane. A sleeve is inserted into the outer sound-absorbing cotton, and inner sound-absorbing cotton formed by winding sheet-shaped sound-absorbing cotton into a cylindrical structure is inserted into the sleeve.

[0005] Furthermore, mutually matching first inclined surfaces are processed on both long sides of the outer sound-absorbing cotton, and the two first inclined surfaces are attached to each other. Mutually matching second inclined surfaces are processed on both long sides of the inner sound-absorbing cotton, and the two second inclined surfaces are attached to each other.

[0006] Furthermore, a motor is installed at the middle position of one side of the impeller chamber. A support block is provided under the motor. The support block is connected to a column rod by screws. The end of the column rod away from the support block is fixedly connected to the motor. The support block is installed between the air inlet cylinder and the air outlet cylinder.

[0007] Furthermore, bottom plate strips are provided on both the lower side of the air inlet cylinder and the lower side of the air outlet cylinder. The cross-section of the bottom plate strip is Z-shaped. Two protruding parts are installed on both the lower surface of the air inlet cylinder and the lower surface of the air outlet cylinder. The bottom plate strip is connected and fixed to the protruding parts by screws.

[0008] Furthermore, connection edges are installed at both ends of the air inlet duct away from the impeller chamber and both ends of the air outlet duct away from the impeller chamber. A ring is provided on one side of the connection edge. A plurality of lugs are evenly fixed on the outer surface of the ring. The connection edge is connected and fixed to the lugs by screws. Internal threads for connecting the air duct are machined on the inner surface of the ring.

[0009] Furthermore, the connection edge on the air inlet duct and the air inlet duct are of an integrally formed structure, and the connection edge on the air outlet duct and the air outlet duct are of an integrally formed structure.

[0010] Advantages of the present utility model:

[0011] 1. Wrap the outer sound-absorbing cotton around the sleeve, and insert the inner sound-absorbing cotton into the sleeve. At this time, the sleeve plays a role in supporting the outer sound-absorbing cotton and the inner sound-absorbing cotton, facilitating the insertion of the outer sound-absorbing cotton and the inner sound-absorbing cotton into the air inlet duct and the air outlet duct.

[0012] 2. When inserting the structure formed by the outer sound-absorbing cotton, the sleeve, and the inner sound-absorbing cotton into the air inlet duct and the air outlet duct, align the plurality of second planes on the outer sound-absorbing cotton with the first plane respectively. Thus, the first plane and the second plane act together to prevent the outer sound-absorbing cotton from being distorted due to the frictional resistance between the outer sound-absorbing cotton and the inner walls of the air inlet duct and the air outlet duct, which is beneficial to inserting the outer sound-absorbing cotton in the form of being wrapped around the sleeve into the air inlet duct or the air outlet duct, improving the assembly efficiency and the assembly effect.

[0013] 3. Under the action of the outer sound-absorbing cotton and the inner sound-absorbing cotton, the high-speed air flow does not contact the inner walls of the air inlet duct and the air outlet duct, reducing the vibration caused by the high-speed air flow to the air inlet duct and the air outlet duct to achieve a shock-absorbing effect, and at the same time playing a sound-absorbing role to reduce the noise generated during the operation of the fan. Description of the drawings

[0014] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes, and advantages of the present utility model will become more obvious:

[0015] Figure 1 It is a schematic structural diagram of a shock-absorbing fan of the present utility model;

[0016] Figure 2 It is a perspective view of the air inlet duct in a shock-absorbing fan of the present utility model;

[0017] Figure 3 It is an assembly schematic diagram of the outer sound-absorbing cotton, the sleeve, and the inner sound-absorbing cotton in a shock-absorbing fan of the present utility model;

[0018] Figure 4 It is a perspective view of the sleeve in a shock-absorbing fan of the present utility model;

[0019] Figure 5Schematic diagram of the assembly of the middle ring and the air inlet cylinder of a shock-absorbing fan of the present utility model;

[0020] In the figure: 1 - impeller chamber, 2 - air outlet cylinder, 3 - motor, 4 - inner sound-absorbing cotton, 5 - outer sound-absorbing cotton, 6 - air inlet cylinder, 7 - bottom plate strip, 8 - protruding part, 9 - connecting edge, 10 - first plane, 11 - sleeve, 12 - second plane, 13 - support block, 14 - ring, 15 - lug. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please refer to Figure 1 、 Figure 2 and Figure 5 , the present utility model provides a technical solution: a shock-absorbing fan, including an impeller chamber 1, an air inlet cylinder 6 is installed at the air inlet end of the impeller chamber 1, an air outlet cylinder 2 is installed at the air outlet end of the impeller chamber 1, bottom plate strips 7 are provided on the lower sides of both the air inlet cylinder 6 and the air outlet cylinder 2, the cross-section of the bottom plate strip 7 is Z-shaped, two protruding parts 8 are installed on the lower surfaces of both the air inlet cylinder 6 and the air outlet cylinder 2, and the bottom plate strip 7 is fixedly connected to the protruding part 8 by screws. The protruding part 8 facilitates the installation of the two bottom plate strips 7 on the air inlet cylinder 6 and the air outlet cylinder 2. A motor 3 is installed at the middle position of one side of the impeller chamber 1, a support block 13 is provided below the motor 3, the support block 13 is connected to a column rod by screws, and one end of the column rod away from the support block 13 is fixedly connected to the motor 3. The support block 13 is installed between the air inlet cylinder 6 and the air outlet cylinder 2. The air inlet cylinder 6, the air outlet cylinder 2, the support block 13 and the column rod together play a role in supporting the motor 3.

[0023] Refer to Figures 1 - 4, an outer sound-absorbing cotton 5 formed by winding sheet-shaped sound-absorbing cotton into a cylindrical structure is inserted into both the air inlet duct 6 and the air outlet duct 2. A plurality of second planes 12 are processed on the outer surface of the outer sound-absorbing cotton 5. A plurality of first planes 10 that cooperate with the second planes 12 are processed in both the air inlet duct 6 and the air outlet duct 2. The first plane 10 is attached to the second plane 12. A sleeve 11 is inserted into the outer sound-absorbing cotton 5. An inner sound-absorbing cotton 4 formed by winding sheet-shaped sound-absorbing cotton into a cylindrical structure is inserted into the sleeve 11. The outer sound-absorbing cotton 5 is wrapped around the sleeve 11, and the inner sound-absorbing cotton 4 is inserted into the sleeve 11. At this time, the sleeve 11 plays a role in supporting the outer sound-absorbing cotton 5 and the inner sound-absorbing cotton 4, facilitating the insertion of the outer sound-absorbing cotton 5 and the inner sound-absorbing cotton 4 into the air inlet duct 6 and the air outlet duct 2. When the structure formed by the outer sound-absorbing cotton 5, the sleeve 11, and the inner sound-absorbing cotton 4 is inserted into the air inlet duct 6 and the air outlet duct 2, the plurality of second planes 12 on the outer sound-absorbing cotton 5 are respectively aligned with the first planes 10. Thus, the first plane 10 and the second plane 12 act together to prevent the outer sound-absorbing cotton 5 from being distorted due to the frictional resistance between the outer sound-absorbing cotton 5 and the inner walls of the air inlet duct 6 and the air outlet duct 2, which is beneficial to inserting the outer sound-absorbing cotton 5 in the form of being wrapped around the sleeve 11 into the air inlet duct 6 or the air outlet duct 2, improving the assembly efficiency and assembly effect. Under the action of the outer sound-absorbing cotton 5 and the inner sound-absorbing cotton 4, the high-speed air flow does not contact the inner walls of the air inlet duct 6 and the air outlet duct 2, reducing the vibration caused by the high-speed air flow to the air inlet duct 6 and the air outlet duct 2 to achieve a shock-absorbing effect, and at the same time playing a sound-absorbing role to reduce the noise generated during the operation of the fan.

[0024] Refer to Figure 1 and Figure 3 , first inclined planes that cooperate with each other are processed on both long sides of the outer sound-absorbing cotton 5, and the two first inclined planes are attached to each other. Second inclined planes that cooperate with each other are processed on both long sides of the inner sound-absorbing cotton 4, and the two second inclined planes are attached to each other. The design of the first inclined plane facilitates increasing the contact range of the two long sides of the outer sound-absorbing cotton 5, and the design of the second inclined plane facilitates increasing the contact range of the two long sides of the inner sound-absorbing cotton 4.

[0025] Refer to Figure 1 and Figure 5 , connection edges 9 are installed at both ends of the air inlet duct 6 far from the impeller chamber 1 and both ends of the air outlet duct 2 far from the impeller chamber 1. A ring 14 is provided on one side of the connection edge 9. A plurality of lugs 15 are evenly fixed on the outer surface of the ring 14. The connection edge 9 is connected and fixed to the lugs 15 by screws. An internal thread for connecting the air duct is processed on the inner surface of the ring 14. The connection edge 9 on the air inlet duct 6 and the air inlet duct 6 are of an integrally formed structure, and the connection edge 9 on the air outlet duct 2 and the air outlet duct 2 are of an integrally formed structure. By using screws to connect the lugs 15 and the connection edge 9, the two rings 14 are respectively assembled with the air inlet duct 6 and the air outlet duct 2.

[0026] Although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vibration-damping fan, comprising an impeller chamber (1), characterized in that: The impeller chamber (1) is provided with an air inlet tube (6) at the air inlet end, and an air outlet tube (2) at the air outlet end. External sound-absorbing cotton (5) formed by winding sheet-like sound-absorbing cotton into a cylindrical structure is inserted in the air inlet tube (6) and the air outlet tube (2). The outer surface of the external sound-absorbing cotton (5) is processed with a plurality of second planes (12). The air inlet tube (6) and the air outlet tube (2) are processed with a plurality of first planes (10) matched with the second planes (12). The first planes (10) and the second planes (12) are in contact with each other. A sleeve (11) is inserted in the external sound-absorbing cotton (5), and an internal sound-absorbing cotton (4) formed by winding sheet-like sound-absorbing cotton into a cylindrical structure is inserted in the sleeve (11).

2. A vibration-absorbing fan according to claim 1, characterized in that: The two long sides of the outer sound-absorbing cotton (5) are processed with first inclined surfaces that match each other, and the two first inclined surfaces are in contact with each other. The two long sides of the inner sound-absorbing cotton (4) are processed with second inclined surfaces that match each other, and the two second inclined surfaces are in contact with each other.

3. A vibration-absorbing fan according to claim 1, characterized in that: A motor (3) is installed in the middle of one side of the impeller chamber (1); a support block (13) is provided on the lower side of the motor (3); the support block (13) is connected to a column rod by screws; one end of the column rod away from the support block (13) is connected and fixed to the motor (3); and the support block (13) is installed between the air inlet duct (6) and the air outlet duct (2).

4. A vibration-absorbing fan according to claim 1, characterized in that: The lower side of the air inlet duct (6) and the lower side of the air outlet duct (2) are both provided with a bottom plate strip (7), the cross section of the bottom plate strip (7) is Z-shaped, the lower surface of the air inlet duct (6) and the lower surface of the air outlet duct (2) are both provided with two protrusions (8), and the bottom plate strip (7) is connected and fixed to the protrusions (8) by screws.

5. The vibration-absorbing fan according to claim 1, characterized in that: The end of the air inlet tube (6) away from the impeller chamber (1) and the end of the air outlet tube (2) away from the impeller chamber (1) are both provided with a connecting edge (9), a ring (14) is provided on one side of the connecting edge (9), a plurality of lugs (15) are evenly fixed on the outer surface of the ring (14), the connecting edge (9) is connected and fixed to the lugs (15) by screws, and the inner surface of the ring (14) is processed with an internal thread for connecting to an air duct.

6. A vibration-absorbing fan according to claim 5, characterized in that: The connecting edge (9) on the air inlet tube (6) and the air inlet tube (6) are an integrally formed structure, and the connecting edge (9) on the air outlet tube (2) and the air outlet tube (2) are an integrally formed structure.

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