CN213176137U

CN213176137U - Bidirectional air supply fan with air partition plate

Info

Publication number: CN213176137U
Application number: CN202021984327.4U
Authority: CN
Inventors: 黄演胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-05-11
Anticipated expiration: 2030-09-11

Abstract

The utility model provides a bidirectional air supply fan with an air baffle, which is provided with a machine head, wherein the machine head is rotatably erected above a machine head supporting mechanism; the fan heads are respectively arranged on two sides of the machine head, the two fan heads are arranged in a back-to-back mode and respectively supply air to two sides of the machine head, an annular air partition plate extending outwards in the radial direction along a machine head shell is fixedly arranged at the position, between the two fan heads, of the outer side of the machine head, and the outer diameter of the air partition plate is larger than the outer diameter of an impeller of the fan heads. This two-way air supply fan is owing to be equipped with the wind vane on the aircraft nose, when the fan head that both sides set up dorsad was opened, by the wind vane with two fan head backs at the mutual isolation that induced drafts of aircraft nose department, make two strands of suction opposite induced drafts possess respective independent wind channel around the aircraft nose, two strands of induced drafts and can not mix together and offset each other around the aircraft nose, consequently, compare with the two-way air supply fan that does not have the wind vane, this take two-way air supply fan of wind vane's air output and air supply distance are stronger, air supply efficiency is higher, the effect is better.

Description

Bidirectional air supply fan with air partition plate

Technical Field

The utility model relates to a two-way air supply fan of area air baffle belongs to domestic appliance technical field.

Background

Present domestic or industrial fan product are mostly the one-way air supply fan of taking the mechanism of shaking head, because the biggest swing of the mechanism of shaking head only has 180, can't satisfy the demand of 360 all-round air supplies, for this reason the designer begins to try to use the two-way air supply fan of taking the mechanism of shaking head to reach the purpose of all-round air supply, if: chinese patent CN201020645228.3 provides a bidirectional fan, which comprises a base, a support frame, a motor, blades and a protection disc, wherein the support frame of the fan is provided with a forward fan and a backward fan, the directions of the forward fan and the backward fan are opposite, the forward fan and the backward fan respectively comprise the blades and the protection disc, and the blades are fixed on an output shaft of the motor; the bidirectional fan can enable people in different positions to blow air, and the utilization efficiency of the fan is improved. Chinese patent CN201120041946.4 provides a double-head fan, which comprises a left fan head, a base, a rotating shaft, a control panel, a bracket, a chassis, a rotary switch, and a right fan head; the left fan head and the right fan head are disc-shaped and are respectively connected with the left end and the right end of the engine base; the base is cylindrical, the lower side surface of the base is horizontally arranged on the rotating shaft of the upper end surface of the bracket, and the upper side surface of the base is provided with a rotary switch; the chassis is disc-shaped, and the bracket is arranged in the middle of the disc; the control panel is a device for controlling the whole fan to run, and a plurality of buttons are arranged on the control panel; the fan can be used for blowing air to two different directions in a fixed mode and blowing air to the periphery in three hundred and sixty degrees.

The common characteristics of the bidirectional air supply fan are as follows: the two fan heads are arranged back to back and respectively supply air to the two sides of the machine head, and 360-degree all-directional air supply is realized by controlling the rotation of the machine head. In practice, we find that the bidirectional blowing fan with such a structure generally has a common design defect: when two-way air supply fan opened, two flabellums that set up the fan head dorsad all induced drafted from its back to producing two strands of opposite direction's suction in aircraft nose department, two strands of opposite suction induced drafted and can offset each other mixing together around the aircraft nose, and then influenced the air output and the air supply distance of two fan heads, lead to air supply inefficiency, the effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take two-way air supply fan of air baffle to solve the current two-way air supply fan that adopt two dorsad settings fan head and induced draft on the contrary when opening two fan head and mix the problem of offsetting each other around the aircraft nose.

The utility model discloses a concrete technical scheme as follows:

a bidirectional air supply fan with an air partition plate is provided with a machine head which is rotatably erected above a machine head supporting mechanism; the two fan heads are arranged at two sides of the machine head respectively, the two fan heads are arranged in a back direction and respectively supply air to two sides of the machine head, an annular air partition plate extending outwards in a radial direction along a shell of the machine head is fixedly arranged at the position between the two fan heads at the outer side of the machine head, and the outer diameter of the air partition plate is larger than the outer diameter of an impeller of the fan heads; when the position of the wind isolation plate on the machine head is staggered with the machine head supporting mechanism, the wind isolation plate is a vertical single plate surface; when the position of the air partition plate on the machine head faces to the machine head supporting mechanism, the machine head supporting mechanism avoiding structure is arranged on the lower side of the air partition plate so as to avoid the interference between the air partition plate and the machine head supporting mechanism when the machine head rotates.

The specific implementation mode of the machine head supporting mechanism avoiding structure is as follows: the upper side of the wind isolation plate is a vertical single plate surface, the lower side of the wind isolation plate is branched into a herringbone double plate surface from the single plate surface, and the machine head supporting mechanism is avoided through a crack space below the herringbone double plate surface; or the wind isolation plate is a vertical single plate surface, the central position of the lower side of the plate surface is arranged to form a longitudinal ring sleeve encircling the periphery of the handpiece supporting mechanism, and the handpiece supporting mechanism is avoided through the inner space of the longitudinal ring sleeve.

The wind isolation plate and the protective covers of the fan heads on the two sides are mutually independent, the rear covers of the protective covers of the fan heads on the two sides are fixedly connected to the end surfaces on the two sides of the machine head respectively, and the front covers of the protective covers of the fan heads on the two sides are buckled on the cover openings of the two rear covers respectively.

The wind isolation plate can also be used as a part of the shields of the fan heads at two sides, the outer diameter of the surface of the wind isolation plate is equivalent to the outer diameter of the shields of the fan heads at two sides, the positions of the two sides of the wind isolation plate, which correspond to the outer sides of the impellers of the fan heads at two sides, are respectively provided with a rear cover bottom ring, the rear cover bottom rings at two sides are respectively connected with the outer edge of the wind isolation plate into a whole through transverse grid bars which are arranged at intervals along the circumference of the rear cover bottom ring, thereby forming a rear cover with two cover openings and taking the wind isolation plate as a support, and the front covers of the fan heads at two sides are respectively buckled on the cover openings at.

Furthermore, only one motor with double output shafts is arranged in the machine head, the two output shafts of the motor respectively extend out from the two sides of the machine head and are respectively connected with impellers of the fan heads at the two sides, the inclination angles of the blades of the impellers of the fan heads at the two sides are opposite, and the two impellers at the two sides are driven by the motor with the double output shafts to rotate in the same direction and realize bidirectional air supply to the two sides of the machine head.

Furthermore, a fan oscillating control mechanism with a conventional structure is arranged in the machine head, when the wind isolation plate is used as a part of fan head shields on two sides, a control pull rod of the fan oscillating control mechanism extending out of the machine head is designed by adopting a long pull rod, and the upper end of the control pull rod penetrates out of the outer side of a transverse grid bar of a double-cover-opening rear cover which is supported by the wind isolation plate, so that the operation is convenient.

The utility model discloses a two-way air supply fan is owing to be equipped with the wind vane on the aircraft nose, when the fan head that both sides set up dorsad was opened, by the wind vane with two fan head backs at the mutual isolation that induced drafts of aircraft nose department, make two strands of suction opposite induced drafts possess respective independent wind channel around the aircraft nose, two strands of induced drafts and can not mix together and offset each other around the aircraft nose, consequently, compare with the two-way air supply fan that does not have the wind vane, this area is stronger with the air output and the air supply distance of the two-way air supply fan of wind vane, air supply efficiency is higher, the effect is better.

Drawings

Fig. 1 is a schematic view of the bidirectional air supply fan of the present invention when the air-isolating plate and the head supporting mechanism are staggered and the air-isolating plate and the protecting cover are independent from each other.

Fig. 2 is a schematic perspective view of the partition plate in fig. 1.

Fig. 3 is a schematic view of the bidirectional air supply fan of the present invention when the air-isolating plate faces the head support mechanism (the lower side of the air-isolating plate is bifurcated into two plates in a herringbone shape) and the air-isolating plate and the protecting cover are independent from each other.

Fig. 4 is a schematic perspective view of the partition plate in fig. 3.

Fig. 5 is a schematic view of the bidirectional air supply fan of the present invention when the air-separating plate faces the nose supporting mechanism (the central position of the lower side of the air-separating plate is set to be a longitudinal ring sleeve) and the air-separating plate and the protecting cover are independent from each other.

Fig. 6 is a perspective view of the partition plate of fig. 5.

Fig. 7 is a schematic view of the bidirectional air supply fan of the present invention when the air-isolating plate and the head supporting mechanism are staggered and the air-isolating plate is used as a part of the protecting cover.

Fig. 8 is a schematic perspective view of the double-canopy rear hood supported by the wind isolation plate in fig. 7.

Fig. 9 is a schematic view of the bidirectional air supply fan of the present invention when the air partition plate faces the head support mechanism (the lower side of the air partition plate is bifurcated into two plates in a herringbone shape) and the air partition plate is used as a part of the shroud.

Fig. 10 is a schematic perspective view of the double-canopy rear hood supported by the wind isolation plate in fig. 9.

Fig. 11 is a schematic view of the bidirectional blowing fan according to the present invention, in which the air-separating plate faces the head support mechanism (the central position of the lower side of the air-separating plate is set to be a longitudinal ring) and the air-separating plate is a part of the shroud.

Fig. 12 is a schematic perspective view of the double-canopy rear hood supported by the wind isolation plate in fig. 11.

In the figure: 1-machine head, 2-machine head supporting mechanism, 3-fan head, 4-wind isolation plate, 4.1-herringbone double-plate surface, 4.2-longitudinal ring sleeve, 5-impeller, 6-shield, 7-rear shield bottom ring, 8-transverse grid bar and 9-control pull rod.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-12, the bidirectional blowing fan is provided with a machine head 1, wherein the machine head 1 is rotatably erected above a machine head supporting mechanism 2; the two sides of the machine head 1 are respectively provided with a fan head 3, the two fan heads 3 are arranged in a back-to-back manner and respectively supply air to the two sides of the machine head 1, the position between the two fan heads 3 at the outer side of the machine head 1 is fixedly provided with an annular air partition plate 4 which extends outwards in the radial direction along the shell of the machine head 1, and the outer diameter of the air partition plate 4 is larger than the outer diameter of an impeller 5 of the fan head 3; when the position of the wind isolation plate 4 on the machine head 1 and the machine head supporting mechanism 2 are mutually staggered, the wind isolation plate 4 is a vertical single plate surface; when the position of the wind isolation plate 4 on the machine head 1 faces the machine head supporting mechanism 2, the lower side of the wind isolation plate 4 is provided with a machine head supporting mechanism avoiding structure so as to avoid the interference between the wind isolation plate 4 and the machine head supporting mechanism 2 when the machine head 1 rotates. The wind isolation plate 4 can be fixedly connected to the shell of the machine head 1 in a detachable mode such as screw connection and can also be integrated with the shell of the machine head 1 in a non-detachable mode.

The specific implementation mode of the machine head supporting mechanism avoiding structure is as follows: the upper side of the wind isolation plate 4 is a vertical single plate surface, the lower side of the wind isolation plate 4 is branched into a herringbone double plate surface 4.1 from the single plate surface, and the machine head supporting mechanism 2 is avoided through a crack space below the herringbone double plate surface 4.1, as shown in fig. 3-4; or the wind isolation plate 4 is a vertical single plate surface, the central position of the lower side of the plate surface is arranged to form a longitudinal ring sleeve 4.2 surrounding the periphery of the machine head supporting mechanism 2, and the machine head supporting mechanism 2 is avoided through the inner space of the longitudinal ring sleeve 4.2, as shown in fig. 5-6.

As shown in fig. 1-6, the wind-separating plate 4 is independent from the shields 6 of the fan heads 3 at both sides, at this time, the rear covers of the fan head shields 6 at both sides are fixedly connected to the end surfaces at both sides of the nose 1, respectively, and the front covers of the fan head shields 6 at both sides are buckled on the cover openings of the two rear covers, respectively.

As shown in fig. 7-12, the wind-separating plate 4 may also be used as a part of the two-sided fan head 3 shroud 6, at this time, the outer diameter of the plate surface of the wind-separating plate 4 is equivalent to the outer diameter of the two-sided fan head shroud 6, two sides of the wind-separating plate 4 are respectively provided with a rear shroud bottom ring 7 at the position corresponding to the outer sides of the two-sided fan head impellers 5, the rear shroud bottom rings 7 at the two sides are respectively connected with the outer edge of the wind-separating plate 4 through transverse grid bars 8 arranged at intervals along the circumference thereof, thereby forming a double-shroud-mouth rear shroud using the wind-separating plate 4 as a support, and the front shrouds of the two-sided fan head shrouds 6 are respectively fastened on the two-sided shroud-mouth of the double-.

The machine head 1 is internally provided with only one motor with double output shafts, two output shafts of the motor respectively extend out from two sides of the machine head 1 and are respectively connected with impellers 5 of the fan heads 3 at two sides, the inclination angles of the impellers 5 of the fan heads at two sides are opposite, and the two impellers 5 at two sides are driven by the motor with double output shafts to rotate in the same direction and realize bidirectional air supply to two sides of the machine head 1.

The head 1 is internally provided with a fan shaking control mechanism with a conventional structure, when the wind isolation plate 4 is used as a part of the fan head shields 6 at two sides, as shown in fig. 5 and 7, a control pull rod 9 of the fan shaking control mechanism extending out of the head 1 adopts a long pull rod design, and the upper end of the control pull rod penetrates out of the transverse grid bars 8 of the double-cover-opening rear cover which takes the wind isolation plate 4 as a support, so as to be convenient for operation.

This two-way air supply fan during operation, as shown in fig. 1, fig. 3 and fig. 5, by separating wind board 4 with 3 backs of two fan heads at the mutual isolation that induced drafts of aircraft nose 1 department, make two strands of suction opposite induced drafts possess respective independent wind channel around aircraft nose 1, two strands of induced drafts and can not mix together and offset each other around aircraft nose 1, consequently, compare with the two-way air supply fan that does not have the wind board, this take two-way air supply fan of wind board's air output and air supply distance are stronger, air supply efficiency is higher, the effect is better.

The above-mentioned drawings are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications or equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a take two-way air supply fan of air baffle, characterized by: the bidirectional air supply fan is provided with a machine head which is rotatably erected above the machine head supporting mechanism; the two fan heads are arranged at two sides of the machine head respectively, the two fan heads are arranged in a back direction and respectively supply air to two sides of the machine head, an annular air partition plate extending outwards in a radial direction along a shell of the machine head is fixedly arranged at the position between the two fan heads at the outer side of the machine head, and the outer diameter of the air partition plate is larger than the outer diameter of an impeller of the fan heads; when the position of the wind isolation plate on the machine head is staggered with the machine head supporting mechanism, the wind isolation plate is a vertical single plate surface; when the position of the air partition plate on the machine head faces to the machine head supporting mechanism, the machine head supporting mechanism avoiding structure is arranged on the lower side of the air partition plate so as to avoid the interference between the air partition plate and the machine head supporting mechanism when the machine head rotates.

2. The bidirectional blower fan with a wind screen as set forth in claim 1, wherein: the specific implementation mode of the machine head supporting mechanism avoiding structure is as follows: the upper side of the wind isolation plate is a vertical single plate surface, the lower side of the wind isolation plate is branched into a herringbone double plate surface from the single plate surface, and the machine head supporting mechanism is avoided through a crack space below the herringbone double plate surface; or the wind isolation plate is a vertical single plate surface, the central position of the lower side of the plate surface is arranged to form a longitudinal ring sleeve encircling the periphery of the handpiece supporting mechanism, and the handpiece supporting mechanism is avoided through the inner space of the longitudinal ring sleeve.

3. The bidirectional blower fan with a wind screen as set forth in claim 1, wherein: the wind isolation plate and the protective covers of the fan heads on the two sides are mutually independent, the rear covers of the protective covers of the fan heads on the two sides are fixedly connected to the end surfaces on the two sides of the machine head respectively, and the front covers of the protective covers of the fan heads on the two sides are buckled on the cover openings of the two rear covers respectively.

4. The bidirectional blower fan with a wind screen as set forth in claim 1, wherein: the wind isolation plate is used as a part of the shields of the fan heads at two sides, the outer diameter of the surface of the wind isolation plate is equivalent to that of the shields of the fan heads at two sides, the positions of the two sides of the wind isolation plate, which correspond to the outer sides of the impellers of the fan heads at two sides, are respectively provided with a back cover bottom ring, the back cover bottom rings at two sides are respectively connected with the outer edge of the wind isolation plate into a whole through transverse grid bars which are arranged at intervals along the circumference of the back cover bottom ring, thereby forming a double-cover-opening back cover which takes the wind isolation plate as a support, and the front covers of the shields of the fan heads at two sides are respectively buckled on the cover.

5. The bidirectional blowing fan with a wind screen as set forth in claim 4, wherein: the fan head shaking control mechanism is arranged in the machine head, a control pull rod of the fan head shaking control mechanism extending out of the machine head is designed by adopting a long pull rod, and the upper end of the control pull rod penetrates out of the outer side of a transverse grid bar of the double-cover-opening rear cover which is supported by the wind isolation plate.

6. The bidirectional blower fan with a wind screen as set forth in claim 1, wherein: the machine head is internally provided with only one motor with double output shafts, the two output shafts of the motor respectively extend outwards from the two sides of the machine head and are respectively connected with impellers of the fan heads at the two sides, the inclination angles of the impellers of the fan heads at the two sides are opposite, and the two impellers at the two sides are driven by the motor with the double output shafts to rotate in the same direction and realize bidirectional air supply to the two sides of the machine head.