CN111550422B

CN111550422B - Fan shell is installed soon to multi-angle

Info

Publication number: CN111550422B
Application number: CN202010410542.1A
Authority: CN
Inventors: 丁佐华
Original assignee: Hangzhou Yuhang Special Blower Co ltd
Current assignee: Hangzhou Yuhang Special Blower Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2022-04-26
Anticipated expiration: 2040-05-15
Also published as: CN111550422A

Abstract

The invention relates to the field of fan shells, in particular to a multi-angle quick-mounting fan shell which comprises a machine shell, wherein a silencer is sleeved outside the machine shell, metal expansion joints are arranged at the end parts of two ends of the machine shell, a vacuum layer is arranged between the silencer and the machine shell, a plurality of groups of mounting rings are arranged on the outer side of the silencer around the circumferential direction of the silencer, a plurality of mounting support legs are fixedly connected to the mounting rings, the bottoms of the mounting support legs on the same mounting ring are fixedly connected with a fixed frame, and a plate type rubber vibration isolator is arranged at the bottom of the fixed frame. The fan shell mounting structure overcomes the defect that the fan shell mounting structure in the prior art cannot be adjusted according to actual conditions, can realize a multi-angle mounting structure, achieves the purpose of quick mounting effect, has the effect of splicing and prolonging, has a multi-muting effect, and can effectively reduce noise in the operation process.

Description

Fan shell is installed soon to multi-angle

Technical Field

The invention relates to the field of fan shells, in particular to a multi-angle quick-mounting fan shell.

Background

The axial flow fan has a very wide application, namely, the axial flow fan and the fan blade have the same direction of air flow, such as an electric fan, and an air conditioner outer machine fan is an axial flow type running fan. The "axial flow" is so called because the gas flows parallel to the fan axis. Axial flow fans are typically used in applications where flow requirements are high and pressure requirements are low. The axial fan fixes the position and moves the air. The axial flow fan mainly comprises a fan impeller and a casing.

The shell of the existing axial flow fan is usually fixed in the installation process, and the reason is that the installation feet of the existing fan shell are fixed and cannot be adjusted according to actual conditions, so that structures such as a support and the like need to be additionally installed at certain specific positions to ensure the stability of installation.

For example, a centrifugal axial flow fan with application number CN201410849982.1, includes a casing wind barrel with air inlet and air outlet at two ends, the casing wind barrel includes a shell and an inner barrel forming an annular wind channel, the air inlet is provided with a current collector and an impeller, characterized in that, a motor driving the impeller is installed outside the casing wind barrel, a transmission shaft for installing the impeller is arranged in the inner barrel, the motor is in transmission fit with the transmission shaft through a transmission belt; the cross section diameter of the current collector gradually converges along the airflow direction, and the ratio of the outlet cross section diameter to the inner diameter of the impeller is 1-1.1; and an annular air deflector arranged around the front disc of the impeller is also arranged in the casing air duct. The fan bracket is fixedly arranged at the lower end of the fan shell, so that the mounting mode of the fan bracket is limited, multi-angle mounting cannot be carried out, and meanwhile, the fan bracket is not provided with a noise reduction structure, so that larger noise can be generated in the daily use process.

Disclosure of Invention

The invention provides a multi-angle quick-mounting fan shell, aiming at overcoming the defect that the mounting structure of the fan shell in the prior art cannot be adjusted according to actual conditions, so that the fan shell can be adjusted and mounted in various use environments, and has the effect of reducing noise.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a fan shell is installed soon to multi-angle, includes the casing, the outside cover of casing is equipped with a muffler, casing both ends tip all is provided with a metal expansion joint, be provided with one deck vacuum layer between muffler and the casing, the muffler outside is provided with a plurality of groups collar around its circumference, it is provided with a plurality of installation stabilizer blades to go back fixed connection on the collar, installation stabilizer blade bottom and a fixed frame fixed connection on the same collar, the fixed frame bottom still is provided with a board-like rubber isolator.

The silencer is sleeved outside the shell of the fan shell, so that the sound at the air inlet and the air outlet of the shell of the fan can be effectively reduced in the working process of the fan, and meanwhile, a vacuum layer is arranged between the silencer and the shell, so that the noise reduction effect of the fan can be further improved, and the fan has the low-noise and mute effect in the running process. The silencer is also provided with a plurality of groups of mounting rings outside, so that the mounting rings can be used for fixedly mounting the support legs according to actual conditions, and the aim of multi-angle quick mounting is fulfilled. Meanwhile, the end parts of the two ends of the shell are respectively provided with a metal expansion joint which can be effectively connected with the pipeline and can effectively absorb the axial displacement of the pipeline.

Preferably, the mounting ring is provided with a plurality of groups of threaded mounting holes at equal intervals, and the mounting support legs and the mounting ring are fixedly connected through the matching of the screw rods and the threaded mounting holes.

Preferably, the metal expansion joint comprises a corrugated section and connecting pieces arranged at two ends of the corrugated section, each connecting piece comprises a through hole communicated with the casing, a first threaded hole used for being connected with the casing is formed in the position, located outside the through hole, of each connecting piece, a second threaded hole used for being connected with the silencer is formed in the periphery of each connecting piece, and a sealing block which extends outwards and can be inserted into the vacuum layer is arranged between each first threaded hole and each second threaded hole.

The metal expansion joint is provided with a metal expansion joint with a specific structure, a first threaded hole and a second threaded hole can be fixedly connected with the machine shell and the silencer, and after the three parts are fixedly connected, a sealing block can be inserted into the vacuum layer between the silencer and the machine shell, so that the connection between the vacuum layer and the outside is blocked, and the vacuum structure can be kept in the vacuum layer all the time.

Preferably, the sealing block is further provided with a group of sealing assemblies for sealing the vacuum layer, the sealing assemblies comprise sealing shaft sleeves sleeved outside the sealing blocks, air seal seats are sleeved outside the sealing shaft sleeves and comprise air seal seat bodies sleeved outside the sealing shaft sleeves and connected with the air seal seat bodies, first sealing faces tightly attached to the inner wall of the silencer and second sealing faces tightly attached to the outer wall of the shell, air seal pressing plates are further arranged at the front ends of the air seal seats and fixedly connected with the sealing blocks through fixing bolts, and meanwhile air seal areas are further arranged among the sealing shaft sleeves, the air seal pressing plates and the air seal seats.

The fan shell is sleeved with the sealing shaft sleeve on the outer side of the sealing block, and the air seal seat and the air seal pressing plate which are matched with the sealing shaft sleeve are arranged, so that the sealing block can perform the air seal closing effect on the area among the sealing block, the shell and the silencer.

Preferably, a sealing air cushion is filled in the air sealing area.

The sealing air cushion can be tightly filled in each part of the air sealing area, so that the effective sealing effect is realized.

Preferably, a motor base is arranged at the upper end of the silencer, a motor fixing plate is arranged on the motor base, a motor is fixedly connected to the motor fixing plate, and a fan impeller linked with the motor is arranged inside the casing.

Preferably, the motor is connected with the fan impeller through a transmission belt, and the silencer is positioned on the outer side of the transmission belt and is also provided with a protective cover.

Preferably, the silencer is internally filled with polyurethane sponge.

Therefore, the invention has the following beneficial effects:

(1) the fan mounting structure has a multi-angle mounting structure, and can facilitate the mounting of the fan, thereby realizing the effect of quick mounting;

(2) the effect of extending and prolonging along the axial direction of the shell is achieved;

(3) the noise reduction device has a multi-mute effect and can effectively reduce noise in the operation process.

Drawings

FIG. 1 is a schematic diagram of a structure of the present invention.

Fig. 2 is a side view of the present invention.

FIG. 3 is an assembled, connected cross-sectional view of the enclosure, muffler and metal expansion joint of the present invention.

Fig. 4 is an enlarged view of the invention at a in fig. 3.

Fig. 5 is a schematic view of the internal structure of the muffler of the present invention.

Fig. 6 shows another embodiment of the present invention.

Wherein: the air-tight sealing device comprises a machine shell 1, a silencer 2, a mounting ring 3, mounting support legs 4, a fixed frame 5, a plate type rubber vibration isolator 6, a vacuum layer 7, a metal expansion joint 8, a corrugated section 9, a connecting piece 10, a through hole 11, a first threaded hole 12, a second threaded hole 13, a sealing block 14, a sealing shaft sleeve 15, an air-tight seat 16, an air-tight seat main body 17, a first sealing surface 18, a second sealing surface 19, an air-tight pressure plate 20, an air-tight area 21, a sealing air cushion 22, a motor seat 23, a motor fixing plate 24, a motor 25, a fan impeller 26, a transmission belt 27, a protective cover 28, threaded mounting holes 29, screws 30 and polyurethane sponge 31.

Detailed Description

The invention is further described with reference to the drawings and the specific embodiments. Those skilled in the art will be able to implement the invention based on these teachings. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.

Example 1

As shown in figures 1-3, a fan shell is installed soon to multi-angle, including casing 1 to and the cover establish the muffler 2 of casing 1 outside cover, casing 1 and 2 both ends tip of muffler pass through a metal expansion joint 8 interconnect for there is one deck vacuum layer 7 between muffler 2 and the casing 1.

The outer side of the silencer 2 is provided with a plurality of groups of mounting rings 3 around the circumferential direction of the silencer, the bottom of each mounting ring 3 is fixedly connected with a plurality of mounting support legs 4, a plurality of groups of threaded mounting holes 29 are formed in the mounting rings 3 at equal intervals, and the mounting support legs 4 and the mounting rings 3 are fixedly connected with each other through the matching of screws 30 and the threaded mounting holes 29. The bottom of the mounting support leg 4 on the same mounting ring 3 is fixedly connected with a fixed frame 5, and the bottom of the fixed frame 5 is also provided with a plate type rubber vibration isolator 6 for damping and supporting.

In addition, the upper end of the silencer is also provided with a motor base 23, a motor fixing plate 24 is arranged on the motor base 23, a motor 25 is fixedly connected to the upper end of the motor fixing plate 24, a fan impeller 26 is arranged inside the casing 1, the motor 25 is connected with the fan impeller 26 through a transmission belt 27, and a protective cover 28 is arranged on the upper end of the silencer 2 and located on the outer side of the transmission belt 27.

As can be seen, the metal expansion joint 8 comprises a corrugated section 9 and connecting pieces 10 arranged at both ends of the corrugated section 9. The connecting piece 10 comprises a through hole 11 communicated with the casing 1, a first threaded hole 12 used for being connected with the casing 1 is arranged at the position, located outside the through hole 11, of the connecting piece 10, and a second threaded hole 13 used for being connected with the silencer 2 is arranged on the periphery of the connecting piece 10. A sealing block 14 which extends outwards and can be inserted into the vacuum layer 7 is arranged between the first threaded hole 12 and the second threaded hole 13.

As can be seen from fig. 4, in order to improve the sound-absorbing effect of the silencer 2 and maintain the tightness of the vacuum layer 7, a set of sealing components for sealing the vacuum layer 7 are further disposed outside the sealing block 14.

The sealing assembly comprises a sealing shaft sleeve 15 sleeved on the outer side of the sealing block 14, and an air seal seat 16 is sleeved on the outer side of the sealing shaft sleeve 15.

The air seal seat 16 comprises an air seal seat main body 17 sleeved outside the seal shaft sleeve 15, a first seal surface 18 connected with the air seal seat main body 17 and tightly jointed with the inner wall of the silencer 2, and a second seal surface 19 tightly jointed with the outer wall of the casing 1. The front end of the air seal seat 16 is also provided with an air seal pressing plate 20, the air seal pressing plate 20 and the air seal seat 16 are fixedly connected with the sealing block 14 through fixing bolts, meanwhile, an air seal area 21 is arranged among the sealing shaft sleeve 15, the air seal pressing plate 20 and the air seal seat 17, a sealing air cushion 22 is filled in the air seal area 21, when the sealing air cushion 22 normally operates, the sealing air cushion can be effectively filled in the air seal area 21, all edges of the sealing air cushion can be tightly attached to all edges of the air seal area 21, and air tightness is guaranteed.

As shown in fig. 5, the silencer 2 is provided with a cavity therein, and polyurethane sponge 31 is filled in the cavity, so as to further achieve the silencing and noise reduction effects.

Example 2

Fig. 6 is another installation manner of the fan housing of the present invention, which fixedly installs the installation legs 4, the fixing frames 5 and the plate type rubber vibration isolators 6 outside the silencer at the left and right sides of the silencer 2, thereby allowing the installation thereof at the top of a narrow space.

Claims

1. The utility model provides a fan shell is installed soon to multi-angle, its characterized in that, includes casing (1), casing (1) outside cover is equipped with a muffler (2), casing (1) both ends tip all is provided with a metal expansion joint (8), be provided with one deck vacuum layer (7) between muffler (2) and casing (1), metal expansion joint (8) include ripple section (9) and set up connecting piece (10) at ripple section (9) both ends, connecting piece (10) include one with casing (1) UNICOM's through-hole (11), connecting piece (10) are located the outside of through-hole (11) and are provided with first screw hole (12) that are used for being connected with casing (1), connecting piece (10) peripheral part is provided with second screw hole (13) that are used for being connected with muffler (2), be provided with outside extension between first screw hole (12) and second screw hole (13), the sealing block (14) can be inserted into the vacuum layer (7), a group of sealing components for sealing the vacuum layer (7) is arranged on the outer side of the sealing block (14), the sealing components comprise a sealing shaft sleeve (15) sleeved on the outer side of the sealing block (14), an air sealing seat (16) is sleeved on the outer side of the sealing shaft sleeve (15), the air sealing seat (16) comprises an air sealing seat main body (17) sleeved outside the sealing shaft sleeve (15), a first sealing surface (18) between the inner wall of the silencer (2) and the air sealing seat main body (17), and a second sealing surface (19) between the outer wall of the casing (1) and the air sealing seat main body (17), the first sealing surface (18) and the second sealing surface (19) are both connected with the air sealing seat main body (17), the first sealing surface (18) is tightly attached to the inner wall of the silencer (2), and the second sealing surface (19) is tightly attached to the outer wall of the casing (1), the front end of the air seal seat (16) is also provided with an air seal pressing plate (20), the air seal pressing plate (20) and the air seal seat (16) are fixedly connected with a seal block (14) through a fixing bolt, meanwhile, an air seal area (21) is arranged among the seal shaft sleeve (15), the air seal pressing plate (20) and the air seal seat (16), a seal air cushion (22) is filled in the air seal area (21), a plurality of groups of mounting rings (3) are arranged on the outer side of the silencer (2) around the circumferential direction of the silencer, a plurality of mounting support legs (4) are fixedly connected to the mounting rings (3), the bottoms of the mounting support legs (4) on the same mounting ring (3) are fixedly connected with a fixed frame (5), and a plate type vibration isolator rubber (6) is arranged at the bottom of the fixed frame (5); the mounting ring (3) is provided with a plurality of groups of threaded mounting holes (29) at equal intervals, and the mounting support legs (4) are fixedly connected with the mounting ring (3) through the matching of the screws (30) and the threaded mounting holes (29) by the mounting support legs (4) and the mounting ring (3).

2. The multi-angle quick-mounting fan casing as claimed in claim 1, wherein a motor base (23) is disposed at an upper end of the silencer, a motor fixing plate (24) is disposed on the motor base (23), a motor (25) is fixedly connected to the motor fixing plate (24), and a fan impeller (26) linked with the motor (25) is disposed inside the casing (1).

3. The multi-angle quick-mounting fan casing as claimed in claim 2, wherein the motor (25) is connected with the fan impeller (26) through a transmission belt (27), and the silencer (2) is further provided with a protective cover (28) on the outer side of the transmission belt (27).

4. The multi-angle quick-mounting fan housing as claimed in claim 1 or 2, wherein the silencer (2) is filled with polyurethane sponge (31).