CN212028202U - Mixed flow fan - Google Patents

Abstract

The utility model discloses a mixed flow fan, which comprises a housin, the inside motor that is provided with of casing, be connected with the impeller on the output of motor, casing one end is provided with the air outlet, and the other end is provided with the air intake, and the inside dustproof screen panel that is provided with of air intake, dustproof screen panel pass through detachable construction to be fixed inside the air intake, and the casing is located air intake one end perisporium and has seted up the ring channel, and detachable construction includes that the rotation is connected at the inside lock ring of ring channel and set up in dustproof screen panel bottom and be used for imb. The utility model has the advantages that: the utility model discloses a dust screen panel passes through detachable construction to be fixed inside the air intake, when dust screen panel leads to the dust adhesion because of long-term the use, can tear out dust screen panel from the air intake is inside, convenient operation, and can easily clear up the dust of adhesion on the dust screen panel to guarantee dust screen panel's dustproof effect all the time.

Description

Mixed flow fan

Technical Field

The utility model relates to a ventilation equipment technical field specifically is a mixed flow fan.

Background

The mixed flow fan is a fan between an axial flow fan and a centrifugal fan, an impeller of the mixed flow fan enables air to do centrifugal motion and axial motion, and the motion of the air in the shell mixes the two motion forms of axial flow and centrifugation, so that the mixed flow fan is called mixed flow.

The existing mixed flow fan comprises a shell, a motor, a guide impeller, blades and a support, wherein the shell is arranged on the support, an air inlet and an air outlet are respectively formed in the left end and the right end of the shell, the motor is arranged inside the shell, a power line is arranged on the input end of the motor, the guide impeller is arranged on the output end of the motor, and the blades are arranged on the guide impeller. When the existing mixed flow fan is used, the mixed flow fan needs to be moved to a designated area, an air inlet is aligned to the designated area, then the motor is electrified, the motor drives the guide impeller and the blades to rotate, and air in the area is pumped out.

Because the environment that the mixed flow fan used is comparatively abominable, contain more dust in the air usually, then along with the work of mixed flow fan, the dust can get into inside the casing through the air intake and cover and influence the fan performance on the blade, can cause the pollution through the air outlet discharge even, consequently can install the screen panel that is used for dirt-proof on the air intake usually among the prior art, and the screen panel welds usually on the air intake, consequently can not dismantle, then after the screen panel uses for a long time, the easy adhesion of dust is on the screen panel, and because the screen panel can not dismantle, consequently, it is comparatively troublesome to clear up.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at just being in the mixed flow fan who conveniently dismantles the dust screen panel and clear up for solving foretell problem and provide.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a mixed flow fan, which comprises a housin, the inside motor that is provided with of casing, be connected with the impeller on the output of motor, casing one end is provided with the air outlet, and the other end is provided with the air intake, the inside dustproof screen panel that is provided with of air intake, dustproof screen panel passes through detachable construction to be fixed inside the air intake, the casing is located air intake one end perisporium and has seted up the ring channel, detachable construction includes the lock ring of rotation connection inside the ring channel and sets up in dustproof screen panel bottom and be used for imbedding the inside annular nestification of lock ring, the locking groove has been seted up to circumference on the internal perisporium of lock ring, the vertical insertion groove that communicates with the locking groove of seting up on the internal perisporium, A locking block inside the locking groove.

By adopting the technical scheme, as the dustproof mesh enclosure is fixed in the air inlet through the detachable structure, when the dustproof mesh enclosure is installed, the locking block can be aligned to the insertion groove firstly, then the annular nesting is embedded into the locking ring, then the locking block can be clamped into the insertion groove along with the annular nesting until the insertion groove slides to the communication position of the insertion groove and the locking groove, at the moment, the locking ring can be rotated, so that the locking block can be clamped into the locking groove along with the annular nesting, the annular nesting can be locked in the locking ring through the limiting locking of the locking groove to the locking block, the dustproof mesh enclosure can be firmly fixed in the air inlet, the operation is convenient and simple, when the fan is used, dust can be blocked by the dustproof mesh enclosure and can not enter the shell through the air inlet, the using effect of the fan is ensured, when the dustproof mesh enclosure is adhered due to long-term use, the locking ring can be rotated, at the moment, the dustproof mesh enclosure is pulled outwards, the annular nest can be pulled out from the inside of the locking ring, so that the dustproof mesh enclosure is detached from the inside of the air inlet, operation is convenient, dust adhered to the dustproof mesh enclosure can be easily cleaned, and the dustproof effect of the dustproof mesh enclosure is guaranteed all the time.

As a further setting of the utility model, the quantity of insertion groove is four, the insertion groove uses the axis of lock ring to be the cross symmetric distribution as the center, the quantity of lock piece is four, the lock piece uses the nested axis of annular to be the cross symmetric distribution as the center.

Through adopting above-mentioned technical scheme, because the quantity of insertion groove is four, and four insertion grooves use the axis of lock ring to be the cross symmetric distribution as the center, the quantity of lock piece is four, and four lock pieces use the nested axis of annular to be the cross symmetric distribution as the center, then when embedding the nested lock ring of annular inside, four lock pieces can aim at four insertion grooves respectively and insert, and when the lock ring rotated, four lock piece homoenergetic cards were gone into the lock inslot and received spacing locking, it is more firm to make the lock ring to the nested locking of annular, the steadiness of dust screen panel installation has been guaranteed.

As a further setting of the utility model, be provided with a plurality of anti-skidding sand grips on the periphery wall of lock ring.

Through adopting above-mentioned technical scheme, owing to be provided with a plurality of anti-skidding sand grips on the periphery wall of lock ring, then greatly increased the coefficient of friction on the lock ring periphery wall for difficult slipping when rotating the lock ring, thereby make the operation of rotating the lock ring become more light laborsaving.

As a further setting of the utility model, the nested inside dust guard that is provided with of annular, a plurality of filtration holes have been seted up on the dust guard, the aperture of filtering the hole is less than the mesh aperture of dustproof screen panel.

Through adopting above-mentioned technical scheme, owing to be provided with the dust guard in the nested inside of annular, seted up a plurality of filtration holes on the dust guard, and the aperture of filtering the hole is less than the mesh aperture of dust screen panel, then the filterable air of process dust screen panel can receive the further filtration of filtering the hole to it is dustproof to realize dual filtration, and dustproof effect is better.

As a further setting of the utility model, the dust guard is discoid, be provided with the external screw thread structure on the perisporium of dust guard, set up the internal thread structure who matches with the external screw thread structure on the nested internal perisporium of annular.

Through adopting above-mentioned technical scheme, owing to be provided with the external screw thread structure on the perisporium of dust guard, and set up the internal thread structure that matches with the external screw thread structure on the nested internal perisporium of annular, then because the dust guard is threaded connection with the nested dismouting of annular, firm in connection nature is better, and the convenient dismouting to the dust guard to the clearance to the dust guard is convenient.

As the utility model discloses a further setting, the rotation groove has all been seted up on the roof in locking groove and the diapire, the lock collar both ends all are provided with the rotation and connect the rotation cover in rotating inslot portion.

Through adopting above-mentioned technical scheme, owing to all seted up the rotation groove on the roof in locking groove and diapire, and all be provided with at the lock ring both ends and rotate the rotation cover of connection in the rotation inslot portion, then spacing through rotating the groove to the rotation cover, guaranteed the firm in connection nature in lock ring and locking groove for the lock ring can smoothly rotate the connection in the locking inslot portion.

As a further setting of the utility model, the cover is equipped with the sealing washer on the nested periphery wall of annular, the sealing washer adopts rubber materials to make.

Through adopting above-mentioned technical scheme, owing to the cover is equipped with the sealing washer on the nested periphery wall of annular, and the sealing washer adopts rubber materials to make, then after the nested embedding lock ring of annular is inside, the sealing washer also can imbed the lock ring inside thereupon and take place to contact with the internal perisporium of lock ring and support and press to can seal the interstitial space of the nested and lock ring of annular, prevent that the dust from passing through the clearance infiltration, effectively guaranteed the clean health of the nested and lock ring junction of annular.

As a further setting of the utility model, the dustproof mesh enclosure is made of stainless steel material.

Through adopting above-mentioned technical scheme, because the dust screen panel adopts stainless steel material to make for the dust screen panel has higher intensity, and is not fragile, and difficult corrosion has prolonged the life of dust screen panel greatly.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a dust screen panel fixes inside the air intake through detachable construction, then when the dust screen panel is installed, can aim at the insertion groove with the locking block first, then imbed the annular nestification inside the locking ring, then the locking block can block into the insertion groove along with it and slide to the insertion groove and the locking groove intercommunication department, rotatable locking ring at this moment, make the locking block into the locking groove along with it, then through the spacing locking of locking groove to the locking block, can lock the annular nestification inside the locking ring, thus firmly fix the dust screen panel inside the air intake, the operation is comparatively convenient and simple, when the fan uses, the dust can be obstructed by the dust screen panel and can't enter the casing through the air intake, thereby the result of use of the fan is guaranteed, and when the dust screen panel leads to the dust adhesion because of long-term use, rotatable locking ring, until the locking block card is gone into insertion, at the moment, the dustproof mesh enclosure is pulled outwards, the annular nest can be pulled out from the inside of the locking ring, so that the dustproof mesh enclosure is detached from the inside of the air inlet, operation is convenient, dust adhered to the dustproof mesh enclosure can be easily cleaned, and the dustproof effect of the dustproof mesh enclosure is guaranteed all the time.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a sectional view of the middle housing, the dust-proof mesh enclosure and the detachable structure of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

fig. 5 is a schematic structural diagram of the middle housing, the motor and the impeller of the present invention.

Reference numerals: 1. a housing; 2. a motor; 3. an impeller; 4. an air outlet; 5. an air inlet; 6. a dust-proof net cover; 7. an annular groove; 8. a locking ring; 9. annular nesting; 10. a locking groove; 11. inserting the groove; 12. a locking block; 13. anti-skid convex strips; 14. a dust-proof plate; 15. a filtration pore; 16. a rotating groove; 17. rotating the sleeve; 18. and (5) sealing rings.

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.

Referring to fig. 1-5, a mixed flow fan comprises a housing 1, a motor 2 disposed inside the housing 1, an impeller 3 connected to an output end of the motor 2, an air outlet 4 disposed at one end of the housing 1, an air inlet 5 disposed at the other end of the housing, a dust-proof mesh enclosure 6 disposed inside the air inlet 5, the dust-proof mesh enclosure 6 made of stainless steel, the dust-proof mesh enclosure 6 fixed inside the air inlet 5 by a detachable structure, a circular groove 7 disposed on a peripheral wall of one end of the housing 1 at the air inlet 5, the detachable structure including a locking ring 8 rotatably connected inside the circular groove 7 and a circular nest 9 disposed at a bottom of the dust-proof mesh enclosure 6 and embedded inside the locking ring 8, wherein a rotating groove 16 is disposed on a top wall and a bottom wall of the locking groove 10, and rotating sleeves 17 rotatably connected inside the rotating groove 16 are disposed at two ends of, a dust guard 14 is arranged in the annular nest 9, the dust guard 14 is provided with a plurality of filtering holes 15, and the aperture of the filtering holes 15 is smaller than the aperture of the mesh of the dust guard 6, wherein the dust guard 14 is disc-shaped, the peripheral wall of the dust guard 14 is provided with an external thread structure, the inner peripheral wall of the annular nest 9 is provided with an internal thread structure matched with the external thread structure, the outer peripheral wall of the locking ring 8 is provided with a plurality of anti-slip convex strips 13, the inner peripheral wall of the locking ring 8 is circumferentially provided with locking grooves 10, the inner peripheral wall of the locking ring 8 is vertically provided with insertion grooves 11 communicated with the locking grooves 10, the outer peripheral wall of the annular nest 9 is provided with locking blocks 12 which are sequentially clamped into the insertion grooves 11 and the locking grooves 10, the number of the insertion grooves 11 is four, and the four insertion grooves 11 are symmetrically distributed in a cross shape by taking the central axis of, the number of the locking blocks 12 is four, the four locking blocks 12 are symmetrically distributed in a cross shape by taking the central axis of the annular nest 9 as the center, finally, a sealing ring 18 is sleeved on the outer peripheral wall of the annular nest 9, and the sealing ring 18 is made of rubber materials.

Because the dustproof mesh enclosure 6 is arranged in the air inlet 5, and the dustproof mesh enclosure 6 is fixed in the air inlet 5 through a detachable structure, when the dustproof mesh enclosure 6 is installed, the locking block 12 can be firstly aligned to the insertion groove 11, then the annular nesting 9 is embedded into the locking ring 8, the locking block 12 can be subsequently clamped into the insertion groove 11 until the insertion groove 11 slides to the position communicated with the locking groove 10, at the moment, the locking ring 8 can be rotated, the locking block 12 can be subsequently clamped into the locking groove 10, the annular nesting 9 can be locked in the locking ring 8 through the limiting locking of the locking groove 10 to the locking block 12, so that the dustproof mesh enclosure 6 is firmly fixed in the air inlet 5, the operation is convenient and simple, when the fan is used, dust can be blocked by the dustproof mesh enclosure 6 and can not enter the shell 1 through the air inlet 5, the use effect of the fan is ensured, and when the dustproof mesh enclosure 6 is adhered due to long-term use, rotatable lock ring 8, until locking piece 12 card go into insertion groove 11 and locking groove 10 intercommunication department, outwards pull dustproof mesh enclosure 6 this moment, can follow the annular is nested 9 and extract from locking ring 8 is inside to tear dustproof mesh enclosure 6 from inside of air intake 5, convenient operation, and can easily clear up the dust of adhesion on dustproof mesh enclosure 6, thereby guarantee dustproof effect of dustproof mesh enclosure 6 all the time.

Because the quantity of insertion groove 11 is four, and four insertion grooves 11 use the axis of lock ring 8 to be the cross symmetric distribution as the center, the quantity of lock piece 12 is four, and four lock pieces 12 use the axis of annular nest 9 to be the cross symmetric distribution as the center, then when embedding lock ring 8 with annular nest 9 inside, four lock pieces 12 can aim at four insertion grooves 11 respectively and insert, and when lock ring 8 rotated, four lock pieces 12 homoenergetic card were gone into the lock groove 10 inside and received spacing locking, it is more firm to make the lock of lock ring 8 to annular nest 9, the steadiness of dust screen panel 6 installation has been guaranteed.

Owing to be provided with a plurality of anti-skidding sand grips 13 on the periphery wall of lock ring 8, then greatly increased the coefficient of friction on the 8 periphery walls of lock ring for difficult slipping when rotating lock ring 8, thereby make the operation of rotating lock ring 8 become more light laborsaving.

Because the inside dust guard 14 that is provided with of annular nest 9, a plurality of filtration holes 15 have been seted up on dust guard 14, and the aperture of filtering hole 15 is less than the mesh aperture of dust screen panel 6, then the filterable air of process dust screen panel 6 can receive the further filtration of filtering hole 15, thereby realize that dual filtration is dustproof, dustproof effect is better, and because be provided with the external screw thread structure on the perisporium of dust guard 14, and set up the internal thread structure who matches with the external screw thread structure on the internal perisporium of annular nest 9, then because the dust guard 14 is threaded connection with being connected of annular nest 9, firm in connection nature is better, and the dismouting to dust guard 14 of convenience, thereby convenient clearance to dust guard 14.

Because all seted up rotation groove 16 on the roof and the diapire in locking groove 10, and all be provided with at locking ring 8 both ends and rotate the rotating sleeve 17 of connection in rotation groove 16 inside, then spacing through rotating groove 16 to rotating sleeve 17 has guaranteed the firm in connection nature of locking ring 8 with locking groove 10 for locking ring 8 can smoothly rotate and connect inside locking groove 10.

Because the sealing ring 18 is sleeved on the outer peripheral wall of the annular nest 9, and the sealing ring 18 is made of rubber materials, after the annular nest 9 is embedded into the locking ring 8, the sealing ring 18 can also be embedded into the locking ring 8 and is contacted and pressed with the inner peripheral wall of the locking ring 8, so that the connecting gap between the annular nest 9 and the locking ring 8 can be sealed, dust is prevented from permeating through the gap, and the clean and sanitary of the connecting position of the annular nest 9 and the locking ring 8 is effectively ensured.

Because the dustproof mesh enclosure 6 is made of stainless steel materials, the dustproof mesh enclosure 6 has higher strength, is not easy to damage and rust, and the service life of the dustproof mesh enclosure 6 is greatly prolonged.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The utility model provides a mixed flow fan, includes casing (1), casing (1) inside is provided with motor (2), be connected with impeller (3) on the output of motor (2), casing (1) one end is provided with air outlet (4), and the other end is provided with air intake (5), air intake (5) inside is provided with dust screen panel (6), its characterized in that: dustproof mesh enclosure (6) are fixed inside air intake (5) through detachable construction, casing (1) are located air intake (5) one end perisporium and have seted up ring channel (7), detachable construction connects lock ring (8) inside ring channel (7) and sets up at dustproof mesh enclosure (6) bottom and be used for imbedding nested (9) of ring (8) inside ring including rotating, locking groove (10) have been seted up to circumference on the internal perisporium of lock ring (8), vertically set up on the internal perisporium of lock ring (8) with insertion groove (11) of locking groove (10) intercommunication, be provided with on the periphery wall of the nested (9) of ring and be used for in proper order the card to go into insertion groove (11), locking inside lock piece (12) of locking groove (10).

2. The mixed flow fan of claim 1, wherein: the quantity of insertion groove (11) is four, insertion groove (11) use the axis of lock ring (8) to be the cross symmetric distribution as the center, the quantity of lock piece (12) is four, lock piece (12) use the axis of annular nestification (9) to be the cross symmetric distribution as the center.

3. The mixed flow fan of claim 1, wherein: the periphery wall of the locking ring (8) is provided with a plurality of anti-skid convex strips (13).

4. The mixed flow fan of claim 1, wherein: the dustproof plate (14) is arranged inside the annular nesting (9), a plurality of filtering holes (15) are formed in the dustproof plate (14), and the aperture of each filtering hole (15) is smaller than the aperture of a mesh of the dustproof mesh enclosure (6).

5. The mixed flow fan of claim 4, wherein: the dustproof plate (14) is disc-shaped, an external thread structure is arranged on the peripheral wall of the dustproof plate (14), and an internal thread structure matched with the external thread structure is arranged on the inner peripheral wall of the annular nest (9).

6. The mixed flow fan of claim 1, wherein: all seted up on the roof of locking groove (10) and the diapire and rotated groove (16), lock ring (8) both ends all are provided with and rotate and connect in rotating the inside rotation cover (17) in groove (16).

7. The mixed flow fan of claim 1, wherein: the periphery wall of the annular nest (9) is sleeved with a sealing ring (18), and the sealing ring (18) is made of rubber materials.

8. The mixed flow fan of claim 1, wherein: the dustproof mesh enclosure (6) is made of stainless steel materials.

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