CN214146010U

CN214146010U - Ventilation fan

Info

Publication number: CN214146010U
Application number: CN202022935735.7U
Authority: CN
Inventors: 周红军
Original assignee: Shengzhou Aoqiang Electric Appliance Co ltd
Current assignee: Shengzhou Aoqiang Electric Appliance Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-09-07
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses a ventilation fan relates to air regenerating device technical field, aims at solving because the ventilation fan uses fixed screw to connect fan blade and pivot, is difficult to the problem of dismantling the fan blade when maintenance inspection and washing, and its technical scheme main points are: including the casing, be provided with the motor in the casing, be connected with the pivot on the motor, fixedly connected with fan blade in the pivot, the fan blade including the cover in the epaxial wheel hub of pivot and fixed connection in the flabellum of wheel hub lateral surface, the pivot is located wheel hub's both sides respectively fixedly connected with be used for butt wheel hub terminal surface and restriction wheel hub circumferential direction's fixed disk and compress tightly the cover. The utility model discloses when the installation through compress tightly the cover with wheel hub tight pressure fixed fan blade on the fixed disk, only need pull down when dismantling and compress tightly the cover and just can pull down the fan blade, the convenience is dismantled and is washd the fan blade.

Description

Ventilation fan

Technical Field

The utility model relates to a ventilation equipment technical field, more specifically say, it relates to a scavenger fan.

Background

The ventilator is an air conditioning appliance which drives blades to rotate by a motor to drive airflow so as to exchange indoor air and outdoor air. The purpose of ventilation is to remove dirty air from the room, regulate temperature, humidity and sensory effects. The ventilating fan is widely applied to families and public places.

The Chinese patent with publication number CN202073803U discloses a ventilator, which has the technical key points that: the fan cover can just cover the front side of the shell, and a supporting sliding device capable of supporting the fan cover is further arranged between the shell and the fan cover.

The fan lid in the scavenger fan among the above-mentioned scheme can cover the front of casing, can prevent some foreign matters from getting into, and then can protect the internals of product, improves life, but because this scavenger fan uses screw fixed connection installation fan blade and pivot in the installation, be difficult to dismantle the fan blade when maintenance inspection and washing for after the scavenger fan uses a period, inconvenient washing the adnexed more dust rubbish in the scavenger fan.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a ventilation fan which is convenient for the fan blade to be detached and cleaned in order to solve the above problems.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a ventilator, includes the casing, be provided with the motor in the casing, be connected with the pivot on the motor, fixedly connected with fan blade in the pivot, the fan blade including the cover in the epaxial wheel hub of pivot and fixed connection in the flabellum of wheel hub lateral surface, the pivot is located wheel hub's both sides respectively fixedly connected with be used for butt wheel hub terminal surface and restriction wheel hub circumferential direction's fixed disk and compress tightly the cover.

By adopting the technical scheme, the fixing sleeve is fixedly connected to the rotating shaft, and the wheel hub is tightly pressed on the end face of the fixing disc by the pressing sleeve, so that the wheel hub and the rotating shaft are prevented from rotating relatively in the circumferential direction or moving relatively in the axial direction, the fan blade is stably fixed on the rotating shaft, the synchronous rotation of the fan blade and the rotating shaft is ensured, the fan blade can be conveniently taken out and cleaned only by detaching the pressing sleeve, and the fan blade is more convenient to detach or install.

The utility model discloses further set up to: the inner ring of the hub is provided with a limiting groove, and the fixed disk is fixedly connected with a limiting block which is clamped into the limiting groove.

Through adopting above-mentioned technical scheme, through setting up the stopper, the stopper card is gone into in the spacing groove and the lateral surface of stopper and the inner wall laminating of spacing groove, through making fixed disk fixed mounting in the pivot to restricted the relative circumferential direction of wheel hub and fixed disk, restricted the relative circumferential direction between wheel hub and the pivot promptly, made wheel hub and the pivot be connected more stably.

The utility model discloses further set up to: the outer end face of the rotating shaft is provided with a threaded hole, a fixing screw is connected to the threaded hole in a threaded manner, a through hole is formed in the outer bottom face of the pressing sleeve, and the fixing screw penetrates through the through hole and is connected with the threaded hole to fixedly connect the pressing sleeve to the rotating shaft.

Through adopting above-mentioned technical scheme, be provided with screw hole and fixed screw, will compress tightly the cover in the pivot and pass through-hole screw in screw hole with the fixed screw during installation to will compress tightly the cover and fix in the pivot and laminate with wheel hub's outer bottom surface, only need can take out compressing tightly the cover from the pivot with the fixed screw back-out during dismantlement, thereby can dismantle the fan blade get off very conveniently, the dismantlement and the washing of the fan blade of being convenient for.

The utility model discloses further set up to: the interior bottom surface that compresses tightly the cover has seted up the joint groove, the outer terminal surface fixedly connected with of pivot just restricts the joint piece that compresses tightly cover circumferential direction with joint groove joint.

Through adopting above-mentioned technical scheme, through setting up the joint groove, embolia the joint piece that corresponds in the pivot with the joint groove on, and the lateral surface of joint piece and the medial surface laminating in joint groove, restricted to compress tightly the cover and take place circumferential direction for the pivot to make to compress tightly the connection between cover and the pivot more stable, and can tightly press wheel hub on the fixed disk through compressing tightly the cover after the installation, avoid wheel hub circumferential direction, thereby improved the connection stability of fan blade in the pivot.

The utility model discloses further set up to: the fixed plate is installed in the outside of casing, fixedly connected with filter screen on the fixed plate.

Through adopting above-mentioned technical scheme, through setting up the filter screen, can play certain filter effect to external dust or foreign matter, the entering of dust or foreign matter when having reduced the use scavenger fan.

The utility model discloses further set up to: the utility model discloses a motor, including casing inner wall, motor, the bracing piece of a plurality of circumference arrays of fixedly connected with, the motor is kept away from to the bracing piece one end fixedly connected with that is used for the card to go into protruding one in the recess, protruding one and the mutual butt of fixed plate are used for restricting a protruding axial displacement.

Through adopting above-mentioned technical scheme, through setting up protruding one, the inside edgewise of casing is seted up flutedly, through going into protruding one along the axial card in the recess, the lateral surface of protruding one is laminated with the medial surface of recess, through setting up the butt in protruding one and install the fixed plate in the casing outside, has restricted protruding one's axial displacement to avoid motor and casing to take place relative axial displacement, make the motor more stable in the casing.

The utility model discloses further set up to: the recess is L shape, the recess is including the straight flute and the tail groove that communicate each other, protruding one penetrates the straight flute bottom is blocked the tail inslot into, the flange edge fixedly connected with card is blocked the straight flute and is used for restricting protruding a week pivoted arch two.

Through adopting above-mentioned technical scheme, through setting up the recess of mutually supporting, protruding first and protruding two, go into straight flute bottom and circumferential direction card income tail groove along the axial card on the bracing piece earlier, go into the straight flute bottom with protruding two along the axial card again, until utilizing protruding two firmly to block protruding one inside the tail groove, with fixed plate fixed mounting this moment in the casing outside to restricted protruding one's axial displacement and circumferential direction, guaranteed the stable installation of motor in the casing.

The utility model discloses further set up to: the outside of casing articulates there is flip.

By adopting the technical scheme, the ventilation fan keeps clean inside when not used or packaged by arranging the turnover cover.

To sum up, the utility model discloses following beneficial effect has:

1. the wheel hub is tightly pressed on the end face of the fixed disc through the pressing sleeve, so that the wheel hub and the rotating shaft are prevented from rotating relatively in the circumferential direction or moving relatively in the axial direction, the synchronous rotation of the fan blade and the rotating shaft is ensured, the fan blade can be conveniently taken out and cleaned only by detaching the pressing sleeve when detached, and the fan blade is more convenient to detach or install.

2. The first bulge and the second bulge are clamped into the groove, so that the axial movement and circumferential rotation of the first bulge are limited, and the motor is more stable in the shell.

3. Through setting up flip, guaranteed that the scavenger fan keeps clean when not using or packing inside.

4. Through setting up the filter screen, played certain filtering action to external dust or foreign matter.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a schematic structural view of the fixed disk, the hub and the pressing sleeve of the present invention;

FIG. 4 is a schematic structural view of the middle compression sleeve of the present invention;

fig. 5 is a schematic structural view of the novel middle fixing plate.

Reference numerals: 1. a housing; 2. a motor; 3. a rotating shaft; 4. a fan blade; 5. a groove; 6. a support bar; 7. a first bulge; 8. a fixing plate; 9. a second bulge; 10. a hub; 11. a fan blade; 12. fixing the disc; 13. a limiting block; 14. a limiting groove; 15. fixing screws; 16. a compression sleeve; 17. a clamping block; 18. a clamping groove; 19. a through hole; 20. a cover is turned; 21. and (5) filtering by using a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

A ventilation fan is shown in fig. 1, fig. 2 and fig. 3, and comprises a casing 1, wherein a motor 2 is arranged in the casing 1, a rotating shaft 3 is connected onto the motor 2, a fan blade 4 is fixedly connected onto the rotating shaft 3, the fan blade 4 comprises a hub 10 sleeved on the rotating shaft 3 and a fan blade 11 fixedly connected onto the outer side surface of the hub 10, a fixed disc 12 and a pressing sleeve 16 are fixedly connected onto two sides of the hub 10 on the rotating shaft 3 respectively, and the fixed disc 12 is fixed onto the rotating shaft 3 through a fastening screw, so that the pressing sleeve 16, the hub 10 and the fixed disc 12 can be guaranteed to rotate synchronously along with the rotating shaft 3.

Referring to fig. 3, a limiting groove 14 is formed in an inner ring of the hub 10, the hub 10 is sleeved on a limiting block 13 on the fixed disk 12 through the limiting groove 14, and an inner side surface of the limiting groove 14 is attached to an outer side surface of the limiting block 13, so that the hub 10 is limited from rotating circumferentially relative to the rotating shaft 3.

Referring to fig. 3, a threaded hole is formed in the outer end surface of the rotating shaft 3, a through hole 19 is formed in the outer bottom surface of the pressing sleeve 16, a fixing screw 15 penetrates through the through hole 19 to be in threaded connection with the threaded hole in the outer end surface of the rotating shaft 3, so that the pressing sleeve 16 tightly presses the hub 10 on the fixed disk 12, the fixed disk 12 is fixedly connected to the rotating shaft 3, axial movement and circumferential rotation of the hub 10 on the rotating shaft 3 are limited, a clamping groove 18 is formed in the inner bottom surface of the pressing sleeve 16, and a clamping block 17 for limiting circumferential rotation of the pressing sleeve 16 relative to the rotating shaft 3 is fixedly connected to the outer end surface of the rotating shaft 3.

Please refer to fig. 2, the outer side of the casing 1 is fixedly connected with a fixing plate 8, the fixing plate 8 is fixedly connected with a filter screen 21 for filtering foreign matters, the inner wall of the casing 1 is provided with an L-shaped groove 5, the groove 5 comprises a straight groove and a tail groove which are mutually communicated, the motor 2 is fixedly connected with a supporting rod 6, the bottom surface of the supporting rod 6 is fixedly connected with a first protrusion 7 which penetrates into the bottom of the straight groove and is clamped into the tail groove for limiting the axial movement of the motor 2, the fixing plate 8 is in threaded connection with the casing 1, and the fixing plate 8 is fixedly connected with a second protrusion 9 which is clamped into the straight groove for limiting the circumferential rotation of the motor 2.

Referring to fig. 1, a flip cover 20 is fixedly connected to an upper portion of a housing 1 of the ventilation fan, the flip cover 20 is hinged to the housing 1 through a hinge, the flip cover 20 completely covers a front surface of the housing 1 when the flip cover is covered, the flip cover 20 can be opened when the ventilation fan works, and the flip cover 20 can be closed when the ventilation fan is not used or is packaged to prevent dust from being accumulated.

The working principle is as follows: the fixing plate 12 is fixedly connected to the rotating shaft 3 through screws, the first bulge 7 on the motor 2 is clamped into the bottom of a straight groove of the shell 1 along the axial direction and is clamped into a tail groove in a circumferential rotating mode, the fan blades 4 are sleeved on the rotating shaft 3, meanwhile, the limiting groove 14 on the hub 10 is sleeved on the limiting block 13 on the fixing plate 12 along the axial direction, the inner side face of the limiting groove 14 is attached to the outer side face of the limiting block 13, the inner bottom face of the hub 10 is attached to the outer bottom face of the fixing plate 12 at the moment, the pressing sleeve 16 is sleeved on the rotating shaft 3, the clamping groove 18 on the inner bottom face of the pressing sleeve 16 is clamped with the clamping block 17 on the rotating shaft 3, the inner side face of the clamping groove 18 is attached to the outer side face of the clamping block 17, the fixing screws 15 penetrate through holes 19 formed in the outer bottom face of the pressing sleeve 16 and are screwed into threaded holes formed in the outer end face of the rotating shaft 3, and the pressing sleeve 16 is fixedly connected with the rotating shaft 3 and is tightly attached to the hub 10.

The second bulge 9 on the fixing plate 8 is axially clamped into the bottom of the straight groove of the shell 1 until the first bulge 7 is firmly clamped in the tail groove by the second bulge 9, and the fixing plate 8 is fixedly arranged on the outer side of the shell 1 by the fixing plate 8 and the shell 1 in threaded connection through screws, and at the moment, the motor 2 is fixedly arranged in the shell 1.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a ventilation fan, includes casing (1), be provided with motor (2) in casing (1), be connected with pivot (3) on motor (2), fixedly connected with fan blade (4), its characterized in that on pivot (3): fan blade (4) including cover wheel hub (10) and fixed connection on pivot (3) in fan blade (11) of wheel hub (10) lateral surface, pivot (3) are located wheel hub (10) both sides respectively fixedly connected with be used for butt wheel hub (10) terminal surface and restriction wheel hub (10) circumferential direction's fixed disk (12) and compress tightly cover (16).

2. The ventilator according to claim 1, characterized in that: the inner ring of the hub (10) is provided with a limiting groove (14), and the fixed disc (12) is fixedly connected with a limiting block (13) clamped into the limiting groove (14).

3. The ventilator according to claim 1, characterized in that: the outer end face of the rotating shaft (3) is provided with a threaded hole, a fixing screw (15) is connected with the threaded hole in an internal thread mode, a through hole (19) is formed in the outer bottom face of the pressing sleeve (16), and the fixing screw (15) penetrates through the through hole (19) and is connected with the threaded hole to be used for fixedly connecting the pressing sleeve (16) to the rotating shaft (3).

4. A ventilator according to claim 3, characterized in that: the interior bottom surface that compresses tightly cover (16) has seted up joint groove (18), the outer terminal surface fixedly connected with of pivot (3) just restricts compressing tightly cover (16) circumferential direction's joint piece (17) with joint groove (18) joint.

5. The ventilator according to claim 1, characterized in that: the fixed plate (8) is installed in the outside of casing (1), fixedly connected with filter screen (21) on fixed plate (8).

6. The ventilator according to claim 5, characterized in that: offer on casing (1) inner wall fluted (5), bracing piece (6) of a plurality of circumference arrays of fixedly connected with are gone up in motor (2), the one end fixedly connected with that motor (2) were kept away from in bracing piece (6) is used for the card to go into protruding (7) in recess (5), protruding (7) and fixed plate (8) mutual butt are used for restricting protruding (7) axial displacement.

7. The ventilator according to claim 6, characterized in that: recess (5) are L shape, recess (5) are including the straight flute and the tail groove that communicate each other, protruding one (7) penetrate the straight flute bottom is gone into the tail inslot to the card, fixed plate (8) edge fixedly connected with is used for going into the straight flute and limits protruding one (7) circumferential direction protruding two (9).

8. The ventilator according to claim 1, characterized in that: the outer side of the shell (1) is hinged with a turnover cover (20).