CN219570419U - Fan housing with good sealing performance - Google Patents

Abstract

The utility model discloses a fan shell with good sealing performance, which comprises a shell, wherein an air inlet and a connecting port are formed in the outer wall of the shell, an air outlet is fixedly connected to the outer wall of the shell, a connecting assembly is fixedly connected to one side, close to the air inlet, of the shell, a sealing device is detachably connected to the connecting assembly, the sealing device comprises a cover plate, and the cover plate is detachably connected to the outside of the connecting assembly. This fan shell with leakproofness is through sealing device and coupling assembling's use, makes this apron and fixed plate carry out the bolt fastening after, and the notch of bolt can remove gag lever post department, and the gag lever post is under reset spring's effect, makes the gag lever post insert in the notch, can carry out spacing fixedly to the bolt, and then effectively prevent the bolt and appear the condition of rotation displacement when the fan uses for a long time, makes the sealing washer can be stable inlay in the seal groove, guarantees that the apron is sealed stable after being connected with the casing.

Description

Fan housing with good sealing performance

Technical Field

The utility model relates to the technical field of fan shells, in particular to a fan shell with good sealing performance.

Background

The centrifugal fan is a machine which increases the pressure of gas and discharges the gas by means of the input mechanical energy, and mainly rotates through the impeller of the fan, and the impeller generates centrifugal force when rotating, so that air is thrown out from the impeller, and the centrifugal fan is widely used for ventilation, dust discharge and cooling of buildings such as factories, mines and tunnels.

At present, the outside needs the installation shell in the installation of current common centrifugal fan, in order to guarantee the leakproofness of installation shell, usually weld the shell into a whole, but this kind of mode is very inconvenient when need maintain the centrifugal fan in the fan shell, be difficult to dismantle, be inconvenient for later stage to the maintenance of centrifugal fan, in order to solve this problem, in the prior art, the chinese patent of bulletin number CN217055699U discloses a concatenation formula light centrifugal fan shell, the device passes through the use of bolt and screw rod, make the guard frame can splice on the fan casing, when need examine and repair the fan in the casing, through taking down the guard frame can.

The device has a certain defect in the actual use process, and the rotation of the centrifugal fan impeller and the operation of the motor can lead the centrifugal fan to generate vibration integrally in the working process of the centrifugal fan, and the vibration can lead the connection point of the protection frame and the shell of the centrifugal fan to be loosened during the long-time use process, thereby affecting the tightness of the protection frame and the fan shell; in view of this, we propose a blower housing with good tightness.

Disclosure of Invention

The utility model mainly aims to provide a fan housing with good sealing performance, which can solve the problems in the background technology.

In order to achieve the above object, the fan housing with good tightness provided by the utility model comprises a housing, wherein an air inlet and a connecting port are formed in the outer wall of the housing, an air outlet is fixedly connected to the outer wall of the housing, a connecting component is fixedly connected to one side of the housing, which is close to the air inlet, and a sealing device is detachably connected to the connecting component, and the sealing device comprises:

the cover plate is detachably connected to the outside of the connecting assembly;

the sealing ring is fixedly connected to the inner surface of the cover plate;

the bolt is in threaded connection with the cover plate;

and the limiting component is arranged on the outer wall of the cover plate.

Preferably, the inner surface of the cover plate is fixedly connected with a positioning block.

Preferably, the limiting component comprises a fixed sleeve, the fixed sleeve is fixedly connected to the outer wall of the cover plate, a sliding ring is slidably connected to the inner wall of the fixed sleeve, a limiting rod is fixedly connected to the outer wall of the sliding ring, and a ball is mounted on one end, far away from the sliding ring, of the limiting rod in an embedded mode, and is used for reducing friction force between the bolt and the limiting rod when the bolt is mounted.

Preferably, the inner wall of sliding ring and fixed cover is through reset spring elastic connection, the one end fixedly connected with pull rod of gag lever post is kept away from to the sliding ring, the pull rod is cup jointed by fixed cover, through the use of pull rod, can drive the gag lever post and remove, is convenient for follow-up release the spacing to the bolt.

Preferably, a notch is formed in the outer wall of the bolt and used for limiting the bolt subsequently.

Preferably, the connecting assembly comprises a fixing plate, the outer wall of the fixing plate is provided with a mounting hole, the outer wall of the fixing plate is provided with a sealing groove, the outer wall of the fixing plate is provided with a positioning opening, and the cover plate is convenient to mount through the use of the positioning opening, so that the bolt is aligned with the mounting hole.

Advantageous effects

The utility model provides a fan shell with good sealing performance. The beneficial effects are as follows:

(1) This fan shell that has good leakproofness passes through sealing device and coupling assembling's use, makes this apron and fixed plate carry out the bolt fastening after, and the notch of bolt can remove gag lever post department, and the gag lever post inserts in the notch under reset spring's effect, can carry out spacing fixedly to the bolt, and then effectively prevent that the bolt from appearing the condition of rotation displacement when the fan works for a long time, makes the sealing washer can be stable inlay in the seal groove, guarantees that the apron is sealed stable after being connected with the casing.

(2) The fan shell with good sealing performance is used through the balls, so that the bolts roll on the bolts in the mounting and fixing process, friction force during bolt mounting is reduced, and meanwhile, under the action of the positioning blocks and the positioning ports, the cover plate can be positioned during mounting, the bolts can be aligned with the mounting holes quickly, and the cover plate can be mounted and fixed conveniently.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of a partial perspective structure of the present utility model;

FIG. 3 is a schematic diagram of the overall rear view structure of the present utility model;

FIG. 4 is a schematic view of a seal arrangement according to the present utility model;

fig. 5 is a schematic diagram of a limiting structure of a limiting assembly for a bolt according to the present utility model.

Reference numerals illustrate:

1. a housing; 2. an air inlet; 3. a connection port; 4. an air outlet; 5. a connection assembly; 6. a sealing device; 51. a fixing plate; 52. a mounting hole; 53. sealing grooves; 54. a positioning port; 641. a notch; 61. a cover plate; 62. a seal ring; 63. a positioning block; 64. a bolt; 65. a limit component; 651. a fixed sleeve; 652. a slip ring; 653. a limit rod; 654. a ball; 655. a pull rod; 656. and a return spring.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a fan housing with good tightness, including a housing 1, an air inlet 2 and a connection port 3 are provided on an outer wall of the housing 1, after the housing 1 can be installed with a motor or other power source through use of the connection port 3, an air outlet 4 is fixedly connected on an outer wall of the housing 1, a connection component 5 is fixedly connected on a side of the housing 1 close to the air inlet 2, tightness of the housing 1 in use is ensured after the housing 1 and the sealing device 6 are detachably connected through use of the connection component 5, the sealing device 6 is detachably connected on the connection component 5, the sealing device 6 can have good sealing effect when the device is used through use of the sealing device 6, the sealing device 6 includes a cover plate 61, and the cover plate 61 is detachably connected outside the connection component 5, a sealing ring 62 is fixedly connected on an inner surface of the cover plate 61 for sealing after the connection component 5 is connected with the sealing device 6, a bolt 64 is screwed on the cover plate 61, a limit component 65 is provided on an outer wall of the cover plate 61, and the limit component 65 can be fixed after the bolt 64 is fixed.

In the embodiment of the present utility model, in order to fix the bolt 64 after fixing the cover plate 61, specifically, a notch 641 is formed on the outer wall of the bolt 64 for the subsequent fixing of the bolt 64, the limiting assembly 65 includes a fixing sleeve 651, the fixing sleeve 651 is fixedly connected to the outer wall of the cover plate 61, a sliding ring 652 is slidingly connected to the inner wall of the fixing sleeve 651, a limiting rod 653 is fixedly connected to the outer wall of the sliding ring 652, a ball 654 is mounted on one end of the limiting rod 653 away from the sliding ring 652 in an embedded manner, the bolt 64 moves in a bolt groove of the cover plate 61 through rotation of the bolt 64, the ball 654 rolls at this time to reduce friction with the bolt 64, the sliding ring 652 is elastically connected to the inner wall of the fixing sleeve 651 through a return spring 656, through the use of reset spring 656, after the sliding ring 652 is pulled by pull rod 655, can make sliding ring 652 compress reset spring 656, after loosening pull rod 655, sliding ring 652 resets under the effect of reset spring 656, the one end fixedly connected with pull rod 655 that sliding ring 652 kept away from gag lever post 653, pull rod 655 is cup jointed by fixed cover 651, after the notch 641 aligns with gag lever post 653 in bolt 64 rotation, under reset spring 656's reset effect, drive sliding ring 652 and reset, make gag lever post 653 insert in the notch 641, accomplish spacing fixed to bolt 64, make bolt 64 and then effectively prevent the condition that bolt 64 from appearing rotary displacement when the fan works for a long time.

Further, in order to be convenient for the installation of apron 61, auxiliary bolt 64 carries out quick installation, improve the leakproofness of apron 61 simultaneously, specifically, fixedly connected with locating piece 63 on the internal surface of apron 61, coupling assembling 5 includes fixed plate 51, and set up mounting hole 52 on the outer wall of fixed plate 51, set up seal groove 53 on the outer wall of fixed plate 51, set up locating port 54 on the outer wall of fixed plate 51, through aiming at locating piece 63 locating port 54, install apron 61 again, make bolt 64 can aim at mounting hole 52 fast, seal ring 62 inserts in the seal groove 53 simultaneously, the transfer into of rethread bolt 64 is in mounting hole 52, accomplish the fixed to apron 61.

In the utility model, when in use, the positioning block 63 is aligned with the positioning hole 54, the cover plate 61 is aligned with the fixing plate 51 for sleeving, meanwhile, the sealing ring 62 is inserted into the sealing groove 53 to finish the sealing of the connection of the cover plate 61, after the sleeving is finished, the bolt 64 is rotated into the mounting hole 52, in the process, the bolt 64 moves in the bolt groove of the cover plate 61 through the rotation of the bolt 64, after the bolt 64 rotates to the notch 641 to be aligned with the limit rod 653, the slip ring 652 is driven to reset under the reset action of the reset spring 656, the limit rod 653 is inserted into the notch 641 to finish the limit fixation of the bolt 64, when the cover plate 61 is required to be disassembled and the fan in the shell 1 is overhauled, the limit rod 655 is driven to be far away from the notch 641 to release the fixation of the bolt 64, then the bolt 64 is rotated to enable the bolt 64 to be separated from the mounting hole 52, and then the cover plate 61 is taken down to overhaul the fan in the shell 1.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (6)

1. The utility model provides a fan housing with leakproofness is good, includes casing (1), its characterized in that: air inlet (2) and connector (3) have been seted up on the outer wall of casing (1), fixedly connected with air outlet (4) on the outer wall of casing (1), one side fixedly connected with coupling assembling (5) that casing (1) is close to air inlet (2), can dismantle on coupling assembling (5) and be connected with sealing device (6), sealing device (6) include:

a cover plate (61), wherein the cover plate (61) is detachably connected to the outside of the connecting assembly (5);

the sealing ring (62), the said sealing ring (62) is fixedly connected to inner surface of the cover plate (61);

a bolt (64), the bolt (64) being in threaded connection with the cover plate (61);

and the limiting assembly (65) is arranged on the outer wall of the cover plate (61).

2. The blower housing with good sealing as set forth in claim 1, wherein: the inner surface of the cover plate (61) is fixedly connected with a positioning block (63).

3. The blower housing with good sealing as set forth in claim 1, wherein: the limiting assembly (65) comprises a fixed sleeve (651), the fixed sleeve (651) is fixedly connected to the outer wall of the cover plate (61), a sliding ring (652) is connected to the inner wall of the fixed sleeve (651) in a sliding mode, a limiting rod (653) is fixedly connected to the outer wall of the sliding ring (652), and a ball (654) is embedded and installed at one end, far away from the sliding ring (652), of the limiting rod (653).

4. A blower housing having good sealing properties as set forth in claim 3, wherein: the sliding ring (652) is elastically connected with the inner wall of the fixed sleeve (651) through a reset spring (656), one end, away from the limiting rod (653), of the sliding ring (652) is fixedly connected with a pull rod (655), and the pull rod (655) is sleeved with the fixed sleeve (651).

5. The blower housing with good sealing as set forth in claim 1, wherein: the outer wall of the bolt (64) is provided with a notch (641).

6. The blower housing with good sealing as set forth in claim 1, wherein: the connecting assembly (5) comprises a fixing plate (51), a mounting hole (52) is formed in the outer wall of the fixing plate (51), a sealing groove (53) is formed in the outer wall of the fixing plate (51), and a positioning opening (54) is formed in the outer wall of the fixing plate (51).