Supporting structure of cabinet type centrifugal fan

Abstract

The utility model relates to a cabinet type centrifugal fan supporting structure which comprises a cabinet body internally provided with a centrifugal fan assembly, the left end and the right end of the bottom of the cabinet body are each fixedly connected with a set of connecting blocks, the adjacent sides of the two sets of connecting blocks are each provided with an inserting hole, a bottom plate is arranged below the connecting blocks, and the bottom plate is connected with the cabinet body. During installation, the cabinet body is arranged above the bottom plate, the position of the cabinet body is adjusted, the inserting holes are aligned with the inserting rods, then a user rotates the threaded rod through a screwing hand, and due to the fact that the directions of internal threads of the internal threaded holes formed in the two adjusting plates are opposite, when the threaded rod is rotated, the two adjusting plates can be pushed to slide reversely through the threads; the cabinet body is connected with the bottom plate through the connecting blocks and the inserting rods, so that connection is convenient, and the problem that an existing supporting structure is poor in supporting stability due to the fact that screws are fixed through the existing mode, and the screws are prone to falling off due to vibration during working of the centrifugal fan is solved as much as possible.

Description

Technical Field

[0001] This utility model belongs to the technical field of centrifugal fan support structure, specifically relating to a support structure for a cabinet-type centrifugal fan. Background Technology

[0002] A fan is a machine that uses input mechanical energy to increase gas pressure and discharge gas. Fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling.

[0003] Chinese utility model patent CN205714903U discloses a cabinet-type centrifugal fan support structure, including an upper crossbeam, a lower crossbeam, a left support column, and a right support column. The upper and lower crossbeams are respectively connected and fixed to the left and right support columns by right-angle connecting blocks and screws to form a support frame. The support frame is connected and fixed to the cabinet-type centrifugal fan by screws and supports the cabinet-type centrifugal fan. The above support structure fixes the cabinet of the centrifugal fan by screws installed on the support frame. When the centrifugal fan is working, the airflow will generate vibration. After a long time, the screws are prone to detach from the centrifugal fan cabinet due to vibration, affecting the stability of the support for the centrifugal fan cabinet. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed support structure for a cabinet-type centrifugal fan in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A support structure for a cabinet-type centrifugal fan includes a cabinet body with a centrifugal fan assembly installed inside. A set of connecting blocks is fixedly connected to both the left and right ends of the bottom of the cabinet body. Insertion holes are provided on adjacent sides of the two sets of connecting blocks. A base plate is provided below the connecting blocks. A set of brackets is fixedly connected to both the front and rear sides of the base plate. A sliding rod is fixedly connected between each set of brackets. Two symmetrically arranged adjusting plates are slidably sleeved on the sliding rod. A shock absorber, aligned with the connecting blocks, is installed on the upper surface of the adjusting plate. An insertion rod is fixedly installed at the top of the shock absorber. Internal threaded holes are provided in the middle sections of the two adjusting plates, and the internal threads of the two internal threaded holes are in opposite directions. The two adjusting plates are threadedly connected to the same threaded rod through the internal threaded holes.

[0007] As a further optimization of this utility model, the centrifugal fan assembly includes a fan installed in the inner cavity of one end of the cabinet, and an impeller installed in the inner cavity of the other end of the cabinet. A dual-shaft motor is installed in the cabinet between the fan and the impeller, and the two output shafts of the dual-shaft motor are respectively fixed to the adjacent ends of the fan and the impeller.

[0008] As a further optimization of this utility model, a wind cover is fitted on the outer surface of the impeller, and a gap is left between the inner wall of the wind cover and the periphery of the impeller. An exhaust pipe is fixedly connected to one side of the wind cover, and the end of the exhaust pipe away from the wind cover passes through the side wall of the cabinet and extends to the outside of the cabinet.

[0009] As a further optimization of this utility model, a rotating shaft is fixedly connected to the end of the impeller away from the dual-shaft motor. The rotating shaft passes through the end sidewall of the shroud and is rotatably connected to the end sidewall of the shroud. A bearing is installed at the connection between the rotating shaft and the end sidewall of the shroud.

[0010] As a further optimization of this utility model, the base plate has a rectangular plate structure, and the length and width of the base plate are both greater than the length and width of the cabinet.

[0011] As a further optimization of this utility model, the length of the threaded rod is greater than the distance between the adjacent ends of the two sets of connecting blocks, and a handle is fixedly installed at one end of the threaded rod.

[0012] The beneficial effects of this utility model are as follows: During installation, the cabinet is placed above the base plate, and the position of the cabinet is adjusted so that the insertion hole and the insertion rod are aligned. Then, the user turns the threaded rod by twisting the screw. Since the internal threads of the internal threaded holes on the two adjustment plates are in opposite directions, when the threaded rod is turned, the two adjustment plates can be pushed to slide in opposite directions through the threads, thereby pushing the insertion rod to slide into the insertion hole. The cabinet is then connected to the base plate through the connecting block and the insertion rod. This not only makes the connection convenient, but also avoids the problem of existing methods that use screws for fixing, where screws are easily dislodged by the vibration of the centrifugal fan during operation, resulting in poor support stability of the existing support structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the installation structure of the wind shield and exhaust pipe of this utility model;

[0015] Figure 3 This utility model Figure 2 A schematic diagram of the cross-sectional structure;

[0016] Figure 4 This is a three-dimensional schematic diagram of the impeller and fan of this utility model;

[0017] Figure 5 This is a schematic diagram of the installation structure of the shock absorber, base plate, and adjustment plate of this utility model.

[0018] In the diagram: 1. Cabinet; 2. Fan; 3. Impeller; 4. Dual-shaft motor; 5. Fan cover; 6. Exhaust pipe; 7. Shaft; 8. Connecting block; 9. Insertion hole; 10. Base plate; 11. Bracket; 12. Slide rod; 13. Adjustment plate; 14. Shock absorber; 15. Insert rod; 16. Internal threaded hole; 17. Threaded rod. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example

[0021] like Figure 1 - Figure 5 As shown, a support structure for a cabinet-type centrifugal fan includes a cabinet 1 with a centrifugal fan assembly installed inside. The centrifugal fan assembly includes a fan 2 installed in the inner cavity of one end of the cabinet 1 and an impeller 3 installed in the inner cavity of the other end of the cabinet 1. A dual-shaft motor 4 is installed inside the cabinet 1 between the fan 2 and the impeller 3. The two output shafts of the dual-shaft motor 4 are fixed to the adjacent ends of the fan 2 and the impeller 3, respectively. When the dual-shaft motor 4 is started, it can drive the impeller 3 and the fan 2 to rotate synchronously. The rotation of the fan 2 is used to draw external air into the cabinet 1, and the rotation of the impeller 3 is used to change the direction of airflow.

[0022] A wind cover 5 is fitted on the outer surface of the impeller 3. A gap is left between the inner wall of the wind cover 5 and the periphery of the impeller 3 to minimize friction between the impeller 3 and the inside of the wind cover 5 when it rotates. An exhaust pipe 6 is fixedly connected to one side of the wind cover 5. The end of the exhaust pipe 6 away from the wind cover 5 passes through the side wall of the cabinet 1 and extends to the outside of the cabinet 1 to discharge air through the exhaust pipe 6.

[0023] A rotating shaft 7 is fixedly connected to the end of the impeller 3 away from the dual-shaft motor 4. The rotating shaft 7 passes through the end side wall of the wind shroud 5 and is rotatably connected to the end side wall of the wind shroud 5. A bearing is installed at the connection between the rotating shaft 7 and the end side wall of the wind shroud 5. The rotating shaft 7 is set to support the end of the impeller 3 away from the dual-shaft motor 4. The bearing is set to reduce the frictional resistance when the rotating shaft 7 rotates.

[0024] A set of connecting blocks 8 are fixedly connected to both the left and right ends of the bottom of the cabinet 1. Insertion holes 9 are opened on the adjacent sides of the two sets of connecting blocks 8. A base plate 10 for supporting the cabinet 1 is set below the connecting blocks 8. The base plate 10 has a rectangular plate structure. The length and width of the base plate 10 are greater than the length and width of the cabinet 1, which can greatly improve the stability of the base plate 10 in supporting the cabinet 1.

[0025] A set of brackets 11 is fixedly connected to the upper surfaces of both the front and rear sides of the base plate 10. A slide rod 12 is fixedly connected between each set of brackets 11. Two symmetrically arranged adjusting plates 13 are slidably sleeved on the slide rod 12. A shock absorber 14 is installed on the upper surface of the adjusting plate 13, which is aligned with the connecting block 8. A plug rod 15 is fixedly installed at the top of the shock absorber 14. The middle section of the two adjusting plates 13 is provided with internal threaded holes 16, and the internal threads of the two internal threaded holes 16 are opposite in direction. The two adjusting plates 13 are threadedly connected to the same threaded rod 17 through the internal threaded holes 16. The length of the threaded rod 17 is greater than the distance between the adjacent ends of the two sets of connecting blocks 8. A handle is fixedly installed at one end of the threaded rod 17. Since the threads of the two internal threaded holes 16 are opposite in direction, when the user rotates the threaded rod 17 by the handle, the two adjusting plates 13 can slide towards and away from each other along the length direction of the slide rod 12 along the thread action line, thereby adjusting the position of the two adjusting plates 13.

[0026] It should be noted that, during installation of this cabinet-type centrifugal fan support structure, the fan 2, impeller 3, dual-shaft motor 4, fan shroud 5, and exhaust pipe 6 are first installed inside the cabinet 1. Then, the cabinet 1 is placed above the base plate 10, and its position is adjusted so that the insertion hole 9 on the connecting block 8 aligns with the insertion rod 15 installed on the shock absorber 14. The user then rotates the threaded rod 17 by hand. Because the internal threads of the internal threaded holes 16 on the two adjusting plates 13 are in opposite directions, rotation of the threaded rod 17 allows for... The two adjusting plates 13 are pushed by the thread to slide in opposite directions, thereby driving the plug rod 15 installed on the shock absorber 14 to move synchronously until the plug rod 15 is inserted into the plug hole 9 opened on the connecting block 8. The cabinet 1 is connected to the base plate 10 through the connecting block 8 and the plug rod 15, which provides stable support for the bottom of the cabinet 1. This avoids the problem that the existing support frame is connected and fixed to the cabinet centrifugal fan by screws, and the screws are easily affected by the vibration of the centrifugal fan during operation, resulting in poor support stability of the existing support structure.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, 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 various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A support structure for a cabinet-type centrifugal fan, comprising a cabinet (1) with a centrifugal fan assembly installed inside, characterized in that: The cabinet (1) has a set of connecting blocks (8) fixedly connected to the left and right ends of the bottom. The two sets of connecting blocks (8) have insertion holes (9) on adjacent sides. A base plate (10) is provided below the connecting blocks (8). A set of brackets (11) is fixedly connected to the front and rear sides of the base plate (10). A slide rod (12) is fixedly connected between each set of brackets (11). Two symmetrically arranged adjusting plates (13) are slidably sleeved on the slide rod (12). A shock absorber (14) is installed on the upper surface of the adjusting plate (13) and is aligned with the connecting block (8). An insertion rod (15) is fixedly installed at the top of the shock absorber (14). The middle section of the two adjusting plates (13) has an internal thread hole (16), and the internal threads of the two internal thread holes (16) are opposite. The two adjusting plates (13) are threadedly connected to the same threaded rod (17) through the internal thread hole (16).

2. The support structure for a cabinet-type centrifugal fan according to claim 1, characterized in that: The centrifugal fan assembly includes a fan (2) installed in the inner cavity of one end of the cabinet (1) and an impeller (3) installed in the inner cavity of the other end of the cabinet (1). A dual-shaft motor (4) is installed in the cabinet (1) between the fan (2) and the impeller (3). The two output shafts of the dual-shaft motor (4) are fixed to the adjacent ends of the fan (2) and the impeller (3), respectively.

3. The support structure for a cabinet-type centrifugal fan according to claim 2, characterized in that: The outer surface of the impeller (3) is fitted with a wind cover (5). A gap is left between the inner wall of the wind cover (5) and the periphery of the impeller (3). An exhaust pipe (6) is fixedly connected to one side of the wind cover (5). The end of the exhaust pipe (6) away from the wind cover (5) passes through the side wall of the cabinet (1) and extends to the outside of the cabinet (1).

4. The support structure for a cabinet-type centrifugal fan according to claim 3, characterized in that: The impeller (3) is fixedly connected to a rotating shaft (7) at the end away from the dual-shaft motor (4). The rotating shaft (7) passes through the end side wall of the wind shroud (5) and is rotatably connected to the end side wall of the wind shroud (5). A bearing is installed at the connection between the rotating shaft (7) and the end side wall of the wind shroud (5).

5. The support structure for a cabinet-type centrifugal fan according to claim 1, characterized in that: The base plate (10) has a rectangular plate structure, and the length and width of the base plate (10) are both greater than the length and width of the cabinet (1).

6. The support structure for a cabinet-type centrifugal fan according to claim 1, characterized in that: The length of the threaded rod (17) is greater than the distance between the adjacent ends of the two sets of connecting blocks (8), and a handle is fixedly installed on one end of the threaded rod (17).

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