Centrifugal fan with buffering anti-seismic structure

Abstract

The utility model relates to the technical field of centrifugal ventilators, and discloses a centrifugal ventilator with a buffer anti-seismic structure, which comprises a ventilator main body, fixing plates are fixed on two sides of the bottom of the ventilator main body through bolts, and the bottoms of the fixing plates are sleeved with fixing sleeve plates. The anti-seismic rubber mats are fixed between the two sides of the fixing plate and the inner wall of the fixing sleeve plate and between the bottom of the fixing plate and the inner wall of the fixing sleeve plate, the bottom of the fixing sleeve plate is fixed to the top face of the supporting plate, and the first buffering rubber mat is fixed to the bottom face of the supporting plate. According to the centrifugal fan, high-frequency vibration of the fan caused by rotation of the impeller is avoided, meanwhile, the firmness of the fan during installation is guaranteed, the problem that an existing centrifugal fan is poor in stability due to the fact that the centrifugal fan is not provided with a buffering anti-seismic structure during use is solved, and the stability of the centrifugal fan during use is greatly improved.

Description

Technical Field

[0001] The utility model application relates to the technical field of centrifugal fans, in particular to a centrifugal fan with a buffering and anti-seismic structure. Background Art

[0002] A centrifugal fan is a device that increases gas pressure and discharges gas through a high-speed rotating impeller. It uses centrifugal force to accelerate the gas through the rotation of the impeller, and then slows down the gas and changes its flow direction through the diffuser, thereby converting the kinetic energy of the gas into pressure energy. It is widely used in industry, construction, agriculture, medical care, transportation and other fields.

[0003] When in use, most centrifugal fans are directly fixed on the bottom surface or on a stand through a mounting bracket. However, since the centrifugal fan increases the gas pressure and discharges the gas through a high-speed rotating impeller, the high-speed rotation of the impeller and the airflow it brings will cause high-frequency vibration of the centrifugal fan, affecting the stability of the fan when in use. However, most of the existing centrifugal fans do not have a buffering and anti-vibration structure, resulting in poor stability of the centrifugal fan after installation. Utility Model Content

[0004] In order to solve the problem that the existing centrifugal fan has poor stability due to lack of a buffer and anti-seismic structure during use, the utility model provides a centrifugal fan with a buffer and anti-seismic structure to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A centrifugal fan with a buffering and anti-seismic structure comprises a fan body, wherein both sides of the bottom of the fan body are fixed with fixing plates by bolts, a fixing sleeve is sleeved on the bottom of the fixing plate, anti-seismic rubber pads are fixed on both sides and between the bottom of the fixing plate and the inner wall of the fixing sleeve, the bottom of the fixing sleeve is fixed to the top surface of a support plate, a buffering rubber pad 1 is fixed to the bottom surface of the support plate, a mounting base plate is detachably connected to the bottom surface of the support plate, fixed side plates are fixed on both sides of the mounting base plate, and a buffering rubber pad 2 is glued and fixed to the mounting base plate and the bottom surface of the fixed side plate.

[0007] Furthermore, the lengths of the two fixing sleeves are both equal to the length of the fixing plate, and the two fixing sleeves and the anti-seismic rubber pads are both configured to be in a "U" shape that matches the fixing plate.

[0008] Furthermore, the support plate is configured to be U-shaped, and a plurality of fixing holes are equidistantly provided inside the two fixed side plates, and the fixing holes all penetrate the second buffer rubber pad.

[0009] Furthermore, the buffer rubber pad has a symmetrically fixed limit block at the bottom, the top surface of the mounting base plate is provided with a fixing groove that cooperates with the limit block, the top surface of the mounting base plate on the side of the fixing groove is slidably provided with a limit plate, and one end of the limit plate extending to the inside of the mounting base plate is fixed with a connecting plate, both sides of the connecting plate are slidably sleeved with fixed support rods, and the top surfaces of the fixed support rods are fixed to the inner wall of the top surface of the mounting base plate, and springs are sleeved on the fixed support rods on the bottom surface of the connecting plate, and the upper and lower ends of the springs are respectively fixed to the connecting plate and the spring.

[0010] Furthermore, the two limit blocks are both configured as a "convex" type placed vertically, and the two fixing grooves are both configured as a "convex" type placed horizontally to cooperate with the limit blocks.

[0011] Furthermore, sliding holes cooperating with the fixed struts are provided inside the connecting plates on both sides of the limiting plate, and the two fixed struts are both arranged in an inverted "T" shape.

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

[0013] 1. In the utility model, through the buffering connection mode, when the fan body is vibrated, the buffer rubber pad will be squeezed or pulled to avoid the high-frequency vibration of the fan caused by the rotation of the impeller, while ensuring the firmness of the fan during installation, solving the problem of poor stability caused by the lack of buffering and anti-seismic structure of the existing centrifugal fan during use, and greatly improving the stability of the centrifugal fan during use.

[0014] 2. In the utility model, through the detachable design between the fan body and the mounting base plate, after the fan is damaged, the fan body and the mounting base plate can be quickly and conveniently separated without disassembling the mounting base plate, the ground can be protected, and the disassembly and assembly operations are simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 is a front view schematic diagram of a centrifugal fan structure according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1 A schematic front view of the centrifugal fan structure split in the embodiment shown;

[0018] Figure 3 yes Figure 1 A schematic bottom view of the centrifugal fan structure split in the embodiment shown;

[0019] Figure 4 yes Figure 1 Schematic diagram of the connection structure of the limiting plate in the embodiment shown.

[0020] The meanings of the reference numerals in the figure are: 1. Fan body; 2. Fixed plate; 3. Fixed sleeve plate; 4. Anti-seismic rubber pad; 5. Support plate; 6. Buffer rubber pad 1; 7. Mounting base plate; 8. Fixed side plate; 9. Buffer rubber pad 2; 10. Limit block; 11. Fixed groove; 12. Limit plate; 13. Connecting plate; 14. Fixed support rod; 15. Spring. DETAILED DESCRIPTION

[0021] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] Reference Figure 1 , Figure 2 and Figure 3 A centrifugal fan with a buffering and seismic-resistant structure comprises a fan body 1, both sides of the bottom of the fan body 1 are fixed with fixing plates 2 by bolts, a fixing sleeve 3 is sleeved on the bottom of the fixing plate 2, the lengths of the two fixing sleeves 3 are equal to the length of the fixing plate 2, the two fixing sleeves 3 and the seismic-resistant rubber pads 4 are all arranged in a "U" shape to match the fixing plate 2, seismic-resistant rubber pads 4 are fixed on both sides and the bottom of the fixing plate 2 and between the inner wall of the fixing sleeve 3, the bottom of the fixing sleeve 3 is fixed to the top surface of the supporting plate 5, the supporting plate 5 is arranged in a "U" shape, a plurality of fixing holes are equidistantly opened inside the two fixing side plates 8, and the fixing holes all penetrate the buffering rubber pads 9, a buffering rubber pad 6 is fixed on the bottom surface of the supporting plate 5, the bottom surface of the supporting plate 5 is detachably connected with a mounting base plate 7, fixed side plates 8 are fixed on both sides of the mounting base plate 7, and buffering rubber pads 9 are glued and fixed to the bottom surfaces of the mounting base plate 7 and the fixed side plates 8.

[0023] Specifically, when the fan body 1 vibrates due to the high-speed rotation of the impeller, the vibration force acts on the fixed plate 2 through the fan body 1, so that the fixed plate 2 moves inside the fixed sleeve 3 to squeeze or pull the anti-vibration rubber pad 4, which can offset part of the vibration force. At the same time, the buffer rubber pad 1 6 can absorb and offset part of the vibration force, and cooperate with the buffer rubber pad 2 9 at the bottom to fully ensure the firmness of the fan body 1 after installation.

[0024] As an optimization solution, Figure 3 and Figure 4 As shown, the limit blocks 10 are symmetrically fixed at the bottom of the buffer rubber pad 6, and the two limit blocks 10 are both arranged to be vertically placed "convex" type, and the two fixing grooves 11 are both arranged to be horizontally placed "convex" type cooperating with the limit blocks 10, and the top surface of the mounting base plate 7 is provided with a fixing groove 11 cooperating with the limit blocks 10, and the top surface of the mounting base plate 7 on the side of the fixing groove 11 is slidably provided with a limit plate 12, and the connecting plates 13 on both sides of the limit plate 12 are provided with sliding holes cooperating with the fixed struts 14, and the two fixed struts 14 are both arranged to be in an inverted "T" shape, and the end of the limit plate 12 extending to the inside of the mounting base plate 7 is fixed with a connecting plate 13, and the fixing struts 14 are slidably sleeved on both sides of the connecting plate 13, and the top surfaces of the fixing struts 14 are fixed on the inner wall of the top surface of the mounting base plate 7, and the fixing struts 14 on the bottom surface of the connecting plate 13 are sleeved with springs 15, and the upper and lower ends of the springs 15 are respectively fixed on the connecting plate 13 and the spring 15.

[0025] Specifically, when the ventilator body 1 needs to be installed, the mounting base plate 7 is fixed to the table top, bottom surface, etc. by fasteners, and then the bottom surface of the limit block 10 is aligned with the fixing groove 11. At this time, the buffer rubber pad 16 and the support plate 5 are located above the limit plate 12. The support plate 5 is pressed to allow the limit block 10 to pass through the fixing groove 11 and enter the inside of the mounting base plate 7. At the same time, the support plate 5 squeezes the limit plate 12, so that the limit plate 12 drives the connecting plate 13 to compress the spring 15 and move to the inside of the mounting base plate 7. When the limit block 10 is completely immersed in the inside of the mounting base plate 7, After that, push the support plate 5 so that the limit block 10 moves to the narrower end of the fixing groove 11, and the limit block 10 can be limited by the fixing groove 11. At this time, the squeezing of the limit plate 12 by the support plate 5 is released, and the limit plate 12 moves to the side of the support plate 5 under the push of the spring 15, so as to limit the support plate 5, so that the ventilator body 1 can be fixed to the mounting base plate 7. When disassembling, press the limit plate 12 and pull the support plate 5. After the limit block 10 is aligned with the fixing groove 11, the limit block 10 can be pulled out of the mounting base plate 7.

[0026] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A centrifugal fan with a buffer and earthquake-resistant structure, characterized in that: The invention comprises a ventilator body (1), wherein both sides of the bottom of the ventilator body (1) are fixed with a fixing plate (2) by bolts, the bottom of the fixing plate (2) is sleeved with a fixing sleeve (3), both sides and the bottom of the fixing plate (2) and the inner wall of the fixing sleeve (3) are fixed with anti-vibration rubber pads (4), the bottom of the fixing sleeve (3) is fixed to the top surface of a support plate (5), the bottom surface of the support plate (5) is fixed with a buffer rubber pad 1 (6), the bottom surface of the support plate (5) is detachably connected with a mounting base plate (7), both sides of the mounting base plate (7) are fixed with fixing side plates (8), and the bottom surfaces of the mounting base plate (7) and the fixing side plates (8) are both glued and fixed with a buffer rubber pad 2 (9).

2. The centrifugal fan with a buffer and earthquake-resistant structure according to claim 1, characterized in that: The lengths of the two fixed sleeves (3) are both equal to the length of the fixed plate (2), and the two fixed sleeves (3) and the anti-vibration rubber pads (4) are both arranged in a "U" shape that matches the fixed plate (2).

3. The centrifugal fan with a buffer and earthquake-resistant structure according to claim 1, characterized in that: The support plate (5) is configured in a U" shape, and a plurality of fixing holes are equidistantly provided inside the two fixed side plates (8), and the fixing holes all penetrate the second buffer rubber pad (9).

4. The centrifugal fan with a buffer and earthquake-resistant structure according to claim 1, characterized in that: A limit block (10) is symmetrically fixed at the bottom of the buffer rubber pad (6); a fixing groove (11) cooperating with the limit block (10) is provided on the top surface of the mounting base plate (7); a limit plate (12) is slidably provided on the top surface of the mounting base plate (7) on the side of the fixing groove (11); and a connecting plate (13) is fixed to one end of the limit plate (12) extending to the inside of the mounting base plate (7); fixed support rods (14) are slidably sleeved on both sides of the connecting plate (13), and the top surfaces of the fixed support rods (14) are fixed to the inner wall of the top surface of the mounting base plate (7); a spring (15) is sleeved on the fixed support rods (14) on the bottom surface of the connecting plate (13), and the upper and lower ends of the spring (15) are respectively fixed to the connecting plate (13) and the spring (15).

5. The centrifugal fan with a buffer and anti-seismic structure according to claim 4, characterized in that: The two limit blocks (10) are both configured as a "convex" type placed vertically, and the two fixing grooves (11) are both configured as a "convex" type placed horizontally to cooperate with the limit blocks (10).

6. The centrifugal fan with a buffer and anti-seismic structure according to claim 4, characterized in that: The connection plates (13) on both sides of the limit plate (12) are provided with sliding holes that cooperate with the fixed support rods (14), and the two fixed support rods (14) are both arranged in an inverted "T" shape.

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