CN212029811U

CN212029811U - Roof axial flow fan

Info

Publication number: CN212029811U
Application number: CN202020389764.5U
Authority: CN
Inventors: 彭卫国
Original assignee: Shanghai Yingda Blower Co ltd
Current assignee: Shanghai Yingda Blower Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-11-27
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a roof axial fan relates to the technical field of fan, including the sleeve, telescopic top is fixed with a plurality of bracing pieces, and telescopic one end is kept away from to the bracing piece is fixed with the top cap, has cup jointed on the sleeve and has kept off the dryer, keeps off and is connected with the locking subassembly that makes fender dryer and sleeve locking on the dryer. The problem of when running into strong wind weather, outside wind can enter into the house through flowing the fan is solved. The utility model discloses have and to realize indoor and outdoor isolated, guarantee indoor temperature's effect.

Description

Roof axial flow fan

Technical Field

The utility model belongs to the technical field of the technique of the fan that flows and specifically relates to a roof axial fan is related to.

Background

The current air flow machine can be used for ventilation in factories, warehouses, offices, houses and other places. Roof axial fans are roof mounted flow fans, called "axial fans" because the air flows parallel to the fan axis.

The current chinese patent with publication number CN201763631U discloses an axial fan for roof the air intake panel of roof axial fan below set up and install a square check valve, square check valve is the installation of horizontality, and square check valve is fixed with the air intake connection of fan, and square check valve is movable shutter plate integrated configuration, comprises valve body and a plurality of movable shutter plate, and movable shutter plate is the align to grid, and movable shutter plate is the flip-up active structure. When the fan starts to use and outwards exhausts the ventilation, because the effect of wind force, the movable type shutter plate among the square check valve upwards rises, and the air outwards discharges through square check valve and fan, and after the fan stop work, the movable type shutter plate because the effect of self gravity, return downwards to the edge is overlapped mutually, seals the air intake of fan totally, realizes indoor and the isolated of outside.

Also provide a roof axial fan at present, can realize indoor and outdoor isolated, effectually avoid when meetting strong wind weather, the wind of outside can enter into the problem in the house through flowing the fan, can guarantee indoor temperature.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a roof axial fan, it has the effect that can realize indoor and outdoor isolated, guarantees indoor temperature.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a roof axial fan, includes the sleeve, and telescopic top is fixed with a plurality of bracing pieces, and telescopic one end is kept away from to the bracing piece is fixed with the top cap, has cup jointed on the sleeve and has kept off the dryer, keeps off and is connected with the locking subassembly that makes fender dryer and sleeve locking on the dryer.

Through adopting above-mentioned technical scheme, when meetting strong wind weather, not hard up locking Assembly, the section of thick bamboo that keeps out the wind that upwards slides afterwards touches the bottom surface of top cap until keeping off the top of dryer, keeps off the dryer this moment and shelters from the clearance between top cap and the sleeve, starts locking Assembly at last and makes and keep off being locked between dryer and the sleeve, has realized indoor and outdoor isolated, has guaranteed indoor temperature.

The present invention may be further configured in a preferred embodiment as: the fixing assembly comprises a moving rod penetrating through the side wall of the wind blocking barrel, and a first clamping groove and a second clamping groove are formed in the outer side wall of the sleeve; when the movable rod is clamped with the first clamping groove, a gap exists between the wind shielding cylinder and the top cover; when the movable rod is clamped with the second clamping groove, the top end of the wind blocking barrel is abutted against the bottom surface of the top cover.

By adopting the technical scheme, when the flow fan is normally used, the movable rod is clamped with the first clamping groove, and air flows through the gap between the air duct and the top cover from the sleeve and finally reaches the outside; when meetting strong wind weather, the pulling carriage release lever makes the carriage release from first joint groove, and the movable sleeve is contradicted the top cap until telescopic top afterwards, promotes the carriage release lever again and makes carriage release lever and second joint groove joint, keeps off the dryer this moment and shelters from easy operation with the clearance between sleeve and the top cap.

The present invention may be further configured in a preferred embodiment as: the one end that the telescopic was kept away from to the carriage release lever is fixed with the fixed block, and the spring has been cup jointed in the telescopic outside, and the both ends of spring respectively with fixed block and sleeve fixed connection.

Through adopting above-mentioned technical scheme, the spring makes the carriage release lever can not break away from first joint groove or second joint groove easily.

The present invention may be further configured in a preferred embodiment as: the wind blocking barrel is connected with a guide assembly.

Through adopting above-mentioned technical scheme, the direction subassembly can lead the slip direction of keeping off the dryer.

The present invention may be further configured in a preferred embodiment as: the guide assembly comprises at least one sliding rod fixedly connected with the inner side wall of the wind shielding cylinder, the outer side wall of the sleeve is provided with a sliding groove, and the sliding rod is connected with the sliding groove in a sliding mode.

Through adopting above-mentioned technical scheme, when the wind screen cylinder slides, the slide bar slides along the direction of sliding tray, and the slip direction of slide bar is the slip direction of wind screen cylinder promptly.

The present invention may be further configured in a preferred embodiment as: one side of the sliding rod, which is close to the sliding groove, is in a circular arc shape protruding towards the direction of the sliding groove, and the sliding groove is square.

Through adopting above-mentioned technical scheme, reduced the area of contact of slide bar with the sliding tray, reduced the gliding frictional force of slide bar, made the slide bar slide more easily.

The present invention may be further configured in a preferred embodiment as: and a circle of groove used for being clamped with the top end of the wind shielding cylinder is formed in the bottom surface of the top cover.

Through adopting above-mentioned technical scheme, when needs keep off the dryer and shelter from the clearance between sleeve and the top cap, the top and the recess joint of a section of thick bamboo until keeping off the dryer are kept off in the slip, make the connection between dryer and the top cap of keeping off more sealed.

The present invention may be further configured in a preferred embodiment as: the opening of the groove is wider than the inner part of the groove, and the top end of the wind blocking barrel is contracted towards the direction close to the groove.

Through adopting above-mentioned technical scheme, make the top of a section of thick bamboo that keeps out the wind get into the recess more easily and peg graft with the recess.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the wind blocking barrel can block the gap between the sleeve and the top cover, so that the indoor and outdoor isolation is realized, and the indoor temperature is ensured;

2. one surface of the sliding rod, which is close to the sliding groove, is in a circular arc shape protruding towards the sliding groove, and the sliding groove is square, so that the contact area of the sliding rod and the sliding groove is reduced, the sliding friction force of the sliding rod is reduced, and the sliding rod can slide more easily;

3. the opening of the groove is wider than the inside of the groove, and the top end of the wind shielding barrel is contracted towards the direction close to the groove, so that the top end of the wind shielding barrel can enter the groove more easily and is spliced with the groove.

Drawings

Fig. 1 is a schematic diagram showing the overall structure of the embodiment.

Fig. 2 is a schematic structural view illustrating the engagement of the moving rod with the first engaging groove according to the embodiment.

FIG. 3 is a schematic structural diagram illustrating the engagement between the moving rod and the second engaging groove according to the embodiment.

FIG. 4 is a schematic structural diagram of an embodiment of a guide assembly.

FIG. 5 is a schematic diagram of an embodiment of a slide bar configuration.

In the figure, 1, a fan body; 2. a sleeve; 21. a base; 22. a support bar; 23. a first clamping groove; 24. a second clamping groove; 3. a top cover; 31. a groove; 4. a wind blocking barrel; 5. a locking assembly; 51. a travel bar; 52. a fixed block; 53. a spring; 6. a guide assembly; 61. a slide bar; 62. a sliding groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As fig. 1, for the utility model discloses a roof axial fan, including base 21, the columniform sleeve 2 of base 21 upper end fixedly connected with, the base 21 is link up to the vertical direction of sleeve 2, and the internally mounted of sleeve 2 has fan body 1 (see fig. 2). Four vertical upward supporting rods 22 are uniformly fixed at the upper end of the sleeve 2, a top cover 3 is fixedly connected to the upper ends of the supporting rods 22, and the lower surface of the top cover 3 is a horizontal plane. The upper surface of top cap 3 shelters from the upper surface of sleeve 2 completely for convex arc and top cap 3 make progress, prevents that the rainwater from getting into sleeve 2 inside and producing damage to fan body 1, and is favorable to the rainwater along the arcwall face landing of top cap 3.

As shown in fig. 2, when the blower body 1 is started to discharge wind outward, the wind is discharged from the sleeve 2 to the outside along the gap between the top cover 3 and the sleeve 2. However, in windy weather, the windy wind enters the sleeve 2 from the gap between the top cover 3 and the sleeve 2, and finally enters the room, thereby affecting the indoor temperature.

As shown in fig. 2, in order to solve the problem, a wind shielding cylinder 4 is sleeved on the outer side wall of the sleeve 2, the wind shielding cylinder 4 can slide up and down, and a locking assembly 5 is fixedly connected to the wind shielding cylinder 4. When meetting strong wind weather, not hard up locking Assembly 5, the upper end conflict top cap 3 of a dryer 4 to keep out the wind that upwards slides afterwards starts locking Assembly 5 and makes a section of thick bamboo 4 and sleeve 2 locking keep out the wind, keeps out the clearance of dryer 4 between with sleeve 2 and top cap 3 and shelters from this moment to make indoor and outdoor isolation.

As shown in fig. 2, the locking assembly 5 includes a moving rod 51 penetrating through the sidewall of the wind blocking barrel 4, a circular fixing block 52 is fixed at one end of the moving rod 51 far away from the sleeve 2, a spring 53 is sleeved on the outer side of the moving rod 51, and two ends of the spring 53 are respectively fixedly connected with the fixing block 52 and the wind blocking barrel 4. The lateral wall of sleeve 2 is equipped with first joint groove 23 and second joint groove 24, and second joint groove 24 is located first joint groove 23 directly over. When the upper end of a wind shielding barrel 4 is level with the upper end of the sleeve 2, one end of the moving rod 51 close to the sleeve 2 is connected with the first clamping groove 23 in an inserting mode, the spring 53 is in a normal state, and the moving rod 51 is not prone to being separated from the first clamping groove 23 due to the spring 53.

As fig. 3, when the air blocking cylinder 4 is needed to block the gap between the sleeve 2 and the top cover 3, the fixing block 52 is pulled in the direction away from the sleeve 2, so that the moving rod 51 exits from the first clamping groove 23, the spring 53 is in the compressed state at the moment, then the air blocking cylinder 4 moves upwards until the upper end of the air blocking cylinder 4 abuts against the top cover 3, the moving rod 51 is flush with the second clamping groove 24 at the moment, and the moving rod 51 is clamped with the second clamping groove 24 under the acting force of the spring 53.

As shown in fig. 4, the wind shielding cylinder 4 is connected with a guiding assembly 6 for guiding the wind shielding cylinder 4, the guiding assembly 6 comprises a pair of sliding rods 61 fixedly connected to the inner wall of the wind shielding cylinder 4 and arranged in the vertical direction, the outer wall of the sleeve 2 is provided with a pair of sliding grooves 62 arranged in the vertical direction, and the sliding rods 61 are slidably connected with the sliding grooves 62. When the wind shielding cylinder 4 slides up and down, the slide rod 61 slides in the slide groove 62.

As shown in fig. 5, the sliding groove 62 is square, and the surface of the sliding rod 61 close to the sliding groove 62 is arc-shaped and protrudes toward the sliding groove 62, so that the contact area between the sliding rod 61 and the sliding groove 62 is small, and therefore the sliding friction force between the sliding rod 61 and the sliding groove 62 is small, and the sliding rod 61 can slide more easily in the sliding groove 62.

As shown in fig. 4, in order to make the connection between the wind shielding barrel 4 and the top cover 3 more sealed, the bottom surface of the top cover 3 is provided with a circle of groove 31, when the wind shielding barrel 4 is needed to shield the gap between the sleeve 2 and the top cover 3, the wind shielding barrel 4 is slid until the top end of the wind shielding barrel 4 is clamped with the groove 31. The top of wind blocking cylinder 4 is contracted towards the direction close to top cover 3, and the opening of groove 31 on top cover 3 is wider than the inside, so that the top of wind blocking cylinder 4 can more easily enter groove 31 and be inserted into groove 31.

The implementation principle of the embodiment is as follows: when meetting strong wind weather, pulling fixed block 52 makes carriage release lever 51 withdraw from first joint groove 23, follow sliding tray 62 afterwards and upwards slide fender dryer 4 until the upper end and the recess 31 joint of fender dryer 4, carriage release lever 51 and second joint groove 24 joint under the effort of spring 53 this moment, keep out wind a section of thick bamboo 4 and shelter from the clearance between top cap 3 and the sleeve 2.

After the weather of strong wind passes, the fixed block 52 is pulled to enable the movable rod 51 to exit the second clamping groove 24, and then the wind blocking barrel 4 slides downwards along the sliding groove 62 until the movable rod 51 is clamped with the first clamping groove 23 under the action of the spring 53; at this moment, a gap exists between the top cover 3 and the sleeve 2, and the current fan can be normally used.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a roof axial fan, includes sleeve (2), and the top of sleeve (2) is fixed with a plurality of bracing pieces (22), and the one end that sleeve (2) were kept away from in bracing piece (22) is fixed with top cap (3), its characterized in that: the sleeve (2) is sleeved with a wind blocking barrel (4), and the wind blocking barrel (4) is connected with a locking assembly (5) which enables the wind blocking barrel (4) and the sleeve (2) to be locked.

2. The axial fan for roofs of claim 1, wherein: the locking assembly (5) comprises a moving rod (51) penetrating through the side wall of the wind blocking barrel (4), and a first clamping groove (23) and a second clamping groove (24) are formed in the outer side wall of the sleeve (2);

when the movable rod (51) is clamped with the first clamping groove (23), a gap exists between the wind blocking cylinder (4) and the top cover (3);

when the movable rod (51) is clamped with the second clamping groove (24), the top end of the wind blocking barrel (4) is abutted against the bottom surface of the top cover (3).

3. The axial fan for roofs as claimed in claim 2, wherein: one end, far away from the sleeve (2), of the moving rod (51) is fixedly provided with a fixed block (52), the outer side of the sleeve (2) is sleeved with a spring (53), and two ends of the spring (53) are fixedly connected with the fixed block (52) and the sleeve (2) respectively.

4. The axial fan for roofs of claim 1, wherein: the wind blocking barrel (4) is connected with a guide assembly (6).

5. The axial fan for roofs of claim 4, wherein: the guide assembly (6) comprises at least one sliding rod (61) fixedly connected with the inner side wall of the wind blocking barrel (4), the outer side wall of the sleeve (2) is provided with a sliding groove (62), and the sliding rod (61) is connected with the sliding groove (62) in a sliding mode.

6. The axial fan for roofs of claim 5, wherein: one surface of the sliding rod (61) close to the sliding groove (62) is in a circular arc shape protruding towards the sliding groove (62), and the sliding groove (62) is square.

7. The axial fan for roofs of claim 1, wherein: the bottom surface of top cap (3) is equipped with a round of recess (31) that are used for with keep off dryer (4) top joint.

8. The axial fan for roofs of claim 7, wherein: the opening of the groove (31) is wider than the inside of the groove, and the top end of the wind blocking barrel (4) is contracted towards the direction close to the groove (31).