Ship heating and ventilation centrifugal fan convenient to disassemble, assemble and maintain

Abstract

The utility model discloses a ship heating ventilation centrifugal fan convenient to disassemble and maintain, and relates to the technical field of centrifugal fans, the ship heating ventilation centrifugal fan comprises a base assembly and a centrifugal fan assembly arranged at the upper end of the base assembly, an adjusting assembly is arranged at the lower end of the centrifugal fan assembly, and the adjusting assembly comprises a cavity box and a rotating rod rotationally connected to the top of the cavity box; the bottom of the centrifugal fan assembly is fixedly connected with the top of the rotating rod, a first motor is arranged in the cavity box, an inner cavity of the cavity box is rotationally connected with a first lead screw, one end of the first lead screw is fixedly connected with a first bevel gear, and the first bevel gear is connected with the output end of the first motor; according to the arrangement, the working direction of the centrifugal fan assembly can be adjusted and changed through the adjusting assembly according to actual requirements, operation is easy, the working efficiency of the centrifugal fan assembly is improved, the centrifugal fan assembly is used and popularized, and the multi-directional using requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a ship heating and ventilation centrifugal fan which is easy to disassemble, assemble and maintain. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. Centrifugal fans are widely used in factories, mines, ships and buildings for ventilation, dust removal and cooling. In addition to heating indoor recirculating air, it can also be used to heat a portion of outdoor fresh air. The centrifugal fan commonly used in ship heating is mainly composed of a casing, an impeller, a motor and a base. The fan concrete foundation, the fan base and the connection between them serve as the fan support system. However, in the actual application of the fan, since the centrifugal fan body and the supporting base are fixedly installed, it is not convenient for most users to disassemble and maintain the fan.

[0003] On this basis, after searching the patent website, the application number CN2622442Y disclosed a centrifugal fan;

[0004] It can be seen that the above patent has the following shortcomings: the traditional centrifugal fan has a relatively simple structure and function, most fans are fixed in a certain place, and can only work in a specific direction and position. Users cannot easily change the direction of the fan outlet, which affects the use effect of the centrifugal fan.

[0005] In view of the above problems, a centrifugal fan for ship heating and ventilation that is easy to disassemble and maintain is proposed. Utility Model Content

[0006] The utility model aims to provide a ship HVAC centrifugal fan which is easy to disassemble, assemble and maintain. The device is used to work, thereby solving the problem that the traditional centrifugal fans in the background technology have simple structures and functions, most of the fans are fixed in a certain place and can only work in a specific direction and position, and the user cannot conveniently change the direction of the fan air outlet, which affects the use effect of the centrifugal fan.

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a ship HVAC centrifugal fan that is easy to disassemble and maintain, comprising a base assembly and a centrifugal fan assembly arranged at the upper end of the base assembly, an adjusting assembly being arranged at the lower end of the centrifugal fan assembly, the adjusting assembly comprising a cavity box and a rotating rod rotatably connected to the top of the cavity box, a third gear being rotatably connected inside the cavity box, the third gear being fixedly connected to the rotating rod, the bottom of the centrifugal fan assembly being fixedly connected to the top of the rotating rod, a first motor being arranged inside the cavity box, a first screw rod being rotatably connected to the inner cavity of the cavity box, one end of the first screw rod being fixedly connected to a first bevel gear, the first bevel gear being connected to an output end of the first motor, a rack block being threadedly connected to the outer periphery of the first screw rod, the rack block being meshed with the third gear, the base assembly comprising a bottom cavity seat and a long groove arranged on the top surface of the bottom cavity seat, a splint being slidably connected to the top surface of the bottom cavity seat, and two groups of splints being arranged.

[0008] Preferably, a fixed rod is fixedly connected inside the cavity box, a movable plate is fixedly connected to the bottom of the rack block, and the movable plate is slidably connected to the outer periphery of the fixed rod.

[0009] Preferably, a hydraulic cylinder is fixedly installed in the inner cavity of the cavity box, a connecting plate is arranged at the upper end of the hydraulic cylinder, the connecting plate is connected to the output end of the hydraulic cylinder, and clamping columns are evenly distributed on the top surface of the connecting plate, and the clamping columns are arranged in multiple groups.

[0010] Preferably, one side of the first bevel gear is meshingly connected to the second bevel gear, the bottom of the second bevel gear is fixedly connected to a connecting rod, the connecting rod is rotatably connected to the inside of the cavity box, the bottom end of the connecting rod is fixedly connected to a cavity disk, one side of the cavity disk is evenly distributed with through cavities, and the through cavities are provided in multiple groups, and the multiple groups of through cavities match the multiple groups of clamping columns.

[0011] Preferably, the base assembly further comprises a second motor fixedly connected to the inside of the bottom cavity seat, a first roller is arranged on one side of the second motor, and the first roller is connected to an output end of the second motor.

[0012] Preferably, the inner cavity of the bottom cavity seat is rotatably connected with a positive and negative threaded rod, the middle of the positive and negative threaded rod is fixedly connected with a second roller, and a belt is sleeved between the second roller and the first roller.

[0013] Preferably, the outer circumference of the positive and negative threaded rods are threadedly connected to limit plates, and two groups of limit plates are provided. The two groups of limit plates are slidably connected to the inner cavity of the long groove, and the two groups of limit plates are fixedly connected to the two groups of clamping plates respectively.

[0014] 1. The utility model discloses a centrifugal fan for ship heating and ventilation that is easy to disassemble and maintain. Most of the existing centrifugal fans are fixed at a certain place and can only work in a specific direction. The device cannot change the direction of the fan air outlet according to the use needs, which affects the working efficiency of the fan. The centrifugal fan assembly in the utility model is designed with an adjustment assembly at its lower end. The user can turn on the first motor, and the first motor rotates forward or reversely. The first motor drives the first bevel gear and the first screw rod to rotate, and the movable plate at the bottom of the rack block is limited to slide on the periphery of the fixed rod. At this time, the first screw rod can drive the rack block By moving the first screw rod horizontally to the left or right, the horizontal movement of the rack block will drive the third gear and the rotating rod to rotate forward or reverse. The forward and reverse rotation of the rotating rod will drive the centrifugal fan assembly at its upper end to rotate forward or reverse, thereby achieving the purpose of adjusting the working direction of the air outlet of the centrifugal fan assembly. When adjusted to a suitable angle, the first motor is turned off. This setting can adjust the working orientation of the centrifugal fan assembly according to actual needs through the adjustment assembly, and the operation is simple, which improves the working efficiency of the centrifugal fan assembly and can be promoted and used to meet various usage needs.

[0015] 2. The utility model discloses a centrifugal fan for ship heating and ventilation that is easy to disassemble and maintain. The centrifugal fan for ship heating and ventilation is mainly composed of a casing, an impeller, a motor and a base, wherein the fan base and the connection therebetween serve as the support system of the fan. However, in the actual application of the fan, since the centrifugal fan body and the supporting base are fixedly installed, it is inconvenient for most users to disassemble and maintain the fan. In the utility model, the base assembly is installed and used in conjunction with the centrifugal fan assembly. When the fan needs to be maintained, the centrifugal fan assembly needs to be removed from the bottom cavity seat, the second motor is turned on and the second motor is made to rotate in the opposite direction, and the second motor drives the fan to rotate in the opposite direction. The first roller, the belt and the second roller rotate, and the second roller rotates in the opposite direction to drive the positive and negative screws to rotate in the opposite direction. The positive and negative screws drive the two sets of limit plates to move horizontally away from each other along the long groove, and the two sets of limit plates drive the two sets of clamps to move away from each other. The two sets of clamps are away from the centrifugal fan assembly and give up the fixing effect on the bottom of the centrifugal fan assembly, so the centrifugal fan assembly can be disassembled for easy maintenance by users. This arrangement is used in conjunction with the centrifugal fan assembly and supports the fan through the base assembly, so that users can easily disassemble and maintain the base assembly and the centrifugal fan assembly. The operation is simple and quick, which improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a structural diagram of the regulating component and the centrifugal fan component of the utility model;

[0018] Figure 3This is a structural diagram of the regulating assembly drive component and the centrifugal fan assembly of the utility model;

[0019] Figure 4 This is a structural diagram of the Chinese driving components of the adjustment assembly of the utility model;

[0020] Figure 5 This is a structural diagram of the base assembly of the utility model;

[0021] Figure 6 This is a structural diagram of the driving component in the base assembly of the utility model.

[0022] In the figure: 1. base assembly; 11. bottom cavity seat; 12. long groove; 13. limit plate; 14. second motor; 15. first roller; 16. belt; 17. positive and negative screw rod; 18. second roller; 19. clamping plate; 2. adjustment assembly; 21. cavity box; 22. rotating rod; 23. third gear; 24. first motor; 25. first bevel gear; 26. first screw rod; 27. second bevel gear; 28. fixing rod; 29. ​​rack block; 291. moving plate; 292. connecting rod; 293. cavity plate; 294. hydraulic cylinder; 295. connecting plate; 296. clamping column; 3. centrifugal fan assembly. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0025] Combination Figure 1-6, a ship HVAC centrifugal fan that is easy to disassemble and maintain, comprises a base assembly 1 and a centrifugal fan assembly 3 arranged at the upper end of the base assembly 1, an adjusting assembly 2 is arranged at the lower end of the centrifugal fan assembly 3, the adjusting assembly 2 comprises a cavity box 21 and a rotating rod 22 rotatably connected to the top of the cavity box 21, a third gear 23 is rotatably connected inside the cavity box 21, the third gear 23 is fixedly connected to the rotating rod 22, the bottom of the centrifugal fan assembly 3 is fixedly connected to the top of the rotating rod 22, a first motor 24 is arranged inside the cavity box 21, a first screw rod 26 is rotatably connected to the inner cavity of the cavity box 21, one end of the first screw rod 26 is fixedly connected to a first bevel gear 25, the first bevel gear 25 is connected to the output end of the first motor 24, the outer circumference of the first screw rod 26 is threadedly connected to a rack block 29, the rack block 29 is meshed with the third gear 23, the base assembly 1 comprises a bottom cavity seat 11 and a long groove 12 arranged on the top surface of the bottom cavity seat 11, the top surface of the bottom cavity seat 11 is slidably connected to a clamping plate 19, and two groups of clamping plates 19 are arranged.

[0026] The utility model is further described below in conjunction with embodiments.

[0027] Example 1: Please refer to Figure 1-4 The base assembly 1 also includes a second motor 14 fixedly connected to the inside of the bottom cavity seat 11, a first roller 15 is arranged on one side of the second motor 14, the first roller 15 is connected to the output end of the second motor 14, the inner cavity of the bottom cavity seat 11 is rotatably connected with a positive and negative threaded rod 17, a second roller 18 is fixedly connected to the middle of the positive and negative threaded rod 17, a belt 16 is sleeved between the second roller 18 and the first roller 15, the outer periphery of the positive and negative threaded rod 17 is threadedly connected with a limit plate 13, and the limit plate 13 is provided with two groups, the two groups of limit plates 13 are slidably connected to the inner cavity of the long groove 12, and the two groups of limit plates 13 are respectively fixedly connected to the two groups of clamping plates 19.

[0028] Example 2: Please refer to Figure 1 and Figure 5-6 A fixed rod 28 is fixedly connected to the inside of the cavity box 21, and a movable plate 291 is fixedly connected to the bottom of the rack block 29. The movable plate 291 is slidably connected to the outer periphery of the fixed rod 28. A hydraulic cylinder 294 is also fixedly installed in the inner cavity of the cavity box 21. A connecting disk 295 is provided on the upper end of the hydraulic cylinder 294. The connecting disk 295 is connected to the output end of the hydraulic cylinder 294. The top surface of the connecting disk 295 is evenly distributed with clamping columns 296, and the clamping columns 296 are provided with multiple groups. The second bevel gear 27 is meshed and connected to one side of the first bevel gear 25. The bottom of the second bevel gear 27 is fixedly connected to a connecting rod 292, and the connecting rod 292 is rotatably connected to the inside of the cavity box 21. The bottom end of the connecting rod 292 is fixedly connected to a hole cavity disk 293, and through cavities are evenly distributed on one side of the hole cavity disk 293. There are multiple groups of through cavities, and the multiple groups of through cavities match the multiple groups of clamping columns 296.

[0029] In summary: the utility model discloses a ship HVAC centrifugal fan which is easy to disassemble, assemble and maintain. Most of the existing centrifugal fans are fixed in a certain place and can only work in a specific direction and position. The device cannot change the direction of the fan outlet according to the use needs, which affects the working efficiency of the fan; the centrifugal fan assembly 3 in the utility model is designed with an adjustment assembly 2 at its lower end, and the user can turn on the first motor 24, and the first motor 24 rotates forward or reversely. The first motor 24 drives the first bevel gear 25 and the first screw rod 26 to rotate, and the movable plate 291 at the bottom of the rack block 29 is limited and slid on the outer periphery of the fixed rod 28. At this time, the first screw rod 26 can drive the rack block 29 to move horizontally to the left or right along the first screw rod 26. The horizontal movement of the rack block 29 will drive the third gear 23 and the rotating rod 22 to rotate forward or reversely. The forward and reverse rotation of the rotating rod 22 drives the centrifugal fan assembly 3 at its upper end to rotate forward or reversely, thereby achieving the purpose of adjusting the working direction of the centrifugal fan assembly 3 outlet. When adjusted to a suitable angle When the first motor 24 is turned off, the hydraulic cylinder 294 can be started at the same time. The extension of the hydraulic cylinder 294 drives the connecting plate 295 to extend, and the multiple sets of clamping columns 296 move toward the hole cavity plate 293 until the multiple sets of clamping columns 296 are completely engaged with the hole cavity plate 293 and fixed, so that the connecting rod 292, the second bevel gear 27 and the first bevel gear 25 are limited inside the cavity box 21 to prevent the first bevel gear 25 from deviating and rotating in the cavity box 21; if it is necessary to adjust the angle of the centrifugal fan assembly 3 again, the hydraulic cylinder is retracted. 294, the hydraulic cylinder 294 drives the multiple groups of clamping columns 296 to contract until they are completely separated from the hole cavity plate 293, and the limiting effect of the second bevel gear 27 on the first bevel gear 25 is cancelled, that is, the first motor 24 can be restarted to drive the centrifugal fan assembly 3 to adjust the angle. This setting can adjust the working position of the centrifugal fan assembly 3 according to actual needs through the adjustment assembly 2, and the operation is simple, which improves the working efficiency of the centrifugal fan assembly 3, and the use and promotion of use can meet the use needs of various directions;

[0030] The centrifugal fan commonly used in ship heating is mainly composed of a casing, an impeller, a motor and a base, wherein the fan base and the connection between them serve as the support system of the fan. However, in the actual application of the fan, since the centrifugal fan body and the matching base are fixedly installed, it is inconvenient for most users to disassemble and maintain the fan. In the present invention, the base assembly 1 is installed and used in combination with the centrifugal fan assembly 3. When the fan needs to be maintained, the centrifugal fan assembly 3 needs to be removed from the bottom cavity seat 11, the second motor 14 is turned on and the second motor 14 is rotated in the opposite direction. The second motor 14 drives the first roller 15, the belt 16 and the second roller 18 to rotate. The reverse rotation of the second roller 18 drives the forward and reverse screw rods 17 to rotate in the opposite direction. The forward and reverse screw rods 17 drive the two sets of limit plates 13 to move horizontally away from each other along the long slot 12. The two sets of limit plates 13 drive the two sets of clamping plates 19 to move horizontally away from each other. The two sets of clamping plates 19 are moved away from the centrifugal fan assembly 3 and give up the fixing effect on the bottom of the centrifugal fan assembly 3, so that the centrifugal fan assembly 3 can be disassembled to facilitate user maintenance; when the centrifugal fan assembly 3 needs to be reinstalled, the bottom of the centrifugal fan assembly 3 is placed in the middle of the bottom cavity seat 11, and the second motor 14 is turned on to make the second motor 14 rotate forward, and the second motor 14 drives the second roller 18 and the forward and reverse screw rods 17 to rotate forward. At this time, the two sets of limit plates 13 drive the two sets of clamping plates 19 to move closer to each other until the two sets of clamping plates 19 tightly clamp and fix the bottom of the centrifugal fan assembly 3, and the installation of the centrifugal fan assembly 3 is completed. This setting is used in conjunction with the centrifugal fan assembly 3 through the base assembly 1 and supports the fan, so that the user can conveniently disassemble and maintain the base assembly 1 and the centrifugal fan assembly 3, and the operation is simple and fast, which improves the practicality of the device.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal fan for ship heating and ventilation that is easy to disassemble, assemble and maintain, comprising a base assembly (1) and a centrifugal fan assembly (3) arranged at the upper end of the base assembly (1), and an adjustment assembly (2) arranged at the lower end of the centrifugal fan assembly (3), characterized in that: The regulating assembly (2) comprises a chamber box (21) and a rotating rod (22) rotatably connected to the top of the chamber box (21); a third gear (23) is rotatably connected inside the chamber box (21); the third gear (23) is fixedly connected to the rotating rod (22); the bottom of the centrifugal fan assembly (3) is fixedly connected to the top of the rotating rod (22); a first motor (24) is provided inside the chamber box (21); a first screw rod (26) is rotatably connected to the inner cavity of the chamber box (21); the first screw rod (26) One end is fixedly connected to a first bevel gear (25), the first bevel gear (25) is connected to the output end of a first motor (24), the outer periphery of the first screw rod (26) is threadedly connected to a rack block (29), the rack block (29) is meshingly connected to a third gear (23), the base assembly (1) comprises a bottom cavity seat (11) and a long groove (12) arranged on the top surface of the bottom cavity seat (11), the top surface of the bottom cavity seat (11) is slidably connected to a clamping plate (19), and two groups of clamping plates (19) are arranged.

2. According to claim 1, a centrifugal fan for ship HVAC that is easy to disassemble and maintain, characterized in that: A fixed rod (28) is fixedly connected inside the cavity box (21), a movable plate (291) is fixedly connected to the bottom of the rack block (29), and the movable plate (291) is slidably connected to the outer periphery of the fixed rod (28).

3. A centrifugal fan for ship HVAC that is easy to disassemble and maintain according to claim 2, characterized in that: A hydraulic cylinder (294) is also fixedly mounted in the inner cavity of the cavity box (21); a connecting disk (295) is provided at the upper end of the hydraulic cylinder (294); the connecting disk (295) is connected to the output end of the hydraulic cylinder (294); clamping columns (296) are evenly distributed on the top surface of the connecting disk (295); and a plurality of groups of clamping columns (296) are provided.

4. A centrifugal fan for ship HVAC that is easy to disassemble and maintain according to claim 3, characterized in that: One side of the first bevel gear (25) is meshingly connected to the second bevel gear (27), the bottom of the second bevel gear (27) is fixedly connected to a connecting rod (292), the connecting rod (292) is rotatably connected to the inside of the cavity box (21), the bottom end of the connecting rod (292) is fixedly connected to a cavity disk (293), one side of the cavity disk (293) is evenly distributed with through cavities, the through cavities are provided in a plurality of groups, and the plurality of groups of through cavities match the plurality of groups of clamping columns (296).

5. A centrifugal fan for ship HVAC that is easy to disassemble and maintain according to claim 4, characterized in that: The base assembly (1) further comprises a second motor (14) fixedly connected to the interior of the bottom cavity seat (11); a first rotating roller (15) is provided on one side of the second motor (14); and the first rotating roller (15) is connected to an output end of the second motor (14).

6. A centrifugal fan for ship HVAC that is easy to disassemble and maintain according to claim 5, characterized in that: The inner cavity of the bottom cavity seat (11) is rotatably connected to a positive and negative threaded rod (17), a second rotating roller (18) is fixedly connected to the middle of the positive and negative threaded rod (17), and a belt (16) is sleeved between the second rotating roller (18) and the first rotating roller (15).

7. A centrifugal fan for ship HVAC that is easy to disassemble and maintain according to claim 6, characterized in that: The outer periphery of the positive and negative threaded rod (17) is threadedly connected to a limit plate (13), and two groups of limit plates (13) are provided. The two groups of limit plates (13) are slidably connected to the inner cavity of the long groove (12), and the two groups of limit plates (13) are fixedly connected to the two groups of clamping plates (19) respectively.

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