CN214742242U

CN214742242U - Axial flow fan capable of adjusting blade angle

Info

Publication number: CN214742242U
Application number: CN202121046325.5U
Authority: CN
Inventors: 王洪军
Original assignee: Hangzhou Haiwan Fan Co ltd
Current assignee: Hangzhou Haiwan Fan Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-11-16
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses an axial-flow fan of adjustable blade angle, including fan shell, fan shell's inner chamber swing joint has the pivot, the surperficial swing joint of pivot has the blade body, the one end fixedly connected with connecting block of blade body. The utility model discloses a press the gag lever post, the gag lever post drives the fly leaf downstream, the fly leaf drives the slide bar downstream, the slide bar drives reset spring downstream compression deformation, through pulling the blade body, the blade body drives the connecting block to a side motion, make the connecting block break away from the inner chamber of spread groove, thereby dismantle the blade body, otherwise through putting into the inner chamber of spread groove with the connecting block, the connecting block drives the gag lever post to a side motion, until the gag lever post motion to the bottom that leads to the groove, elasticity that resets through reset spring drives the slide bar upward movement, the slide bar drives fly leaf and gag lever post upward movement, thereby it installs to get into the inner chamber that leads to the groove through the gag lever post.

Description

Axial flow fan capable of adjusting blade angle

Technical Field

The utility model relates to a fan technical field specifically is an axial fan of adjustable blade angle.

Background

The axial flow fan has a very wide application, namely, the axial flow fan is an axial flow type running fan which is an air flow fan in the same direction as the shaft of the fan blade, such as an electric fan, an air conditioner outer fan is an axial flow type running fan, so the axial flow fan is called as an axial flow type, because the air flows parallel to the fan shaft, the axial flow fan is generally used in the occasions with higher flow requirement and lower pressure requirement, the axial flow fan is fixed in position and moves the air, the axial flow fan mainly comprises a fan impeller and a casing, the structure is simple, but the data requirement is very high, wherein the axial flow fan comprises the axial flow fan with the adjustable blade angle, but the blade of the axial flow fan with the adjustable blade angle is easy to damage after being used for a long time, and needs to be disassembled and replaced, the existing axial flow fan has the defects that the fan and the blade are fixed by adopting a welding and bolt method, so the disassembly and the replacement of the blade are inconvenient, and the practicability and the working efficiency of the fan are reduced, therefore, an axial flow fan with adjustable blade angles is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an axial fan of adjustable blade angle possesses convenient to detach's advantage, has solved current axial fan because fan and blade adopt the method of welding and bolt more to fix it to be not convenient for dismantle and change the blade, thereby lead to having reduced the practicality of fan and work efficiency's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an axial-flow fan of adjustable blade angle, includes the fan shell, the inner chamber swing joint of fan shell has the pivot, the surperficial swing joint of pivot has the blade body, the one end fixedly connected with connecting block of blade body, the spread groove has been seted up on the surface of pivot, the one end that the blade body was kept away from to the connecting block extend to the inner chamber of spread groove and with the inner chamber swing joint of spread groove, the bottom fixedly connected with slide cartridge of connecting block inner chamber, the inner chamber sliding connection of slide cartridge has the slide bar, the bottom fixedly connected with reset spring of slide cartridge inner chamber, reset spring's top and slide bar fixed connection, the top fixedly connected with fly leaf of slide bar, the top fixedly connected with gag lever post of fly leaf.

Preferably, the front of the rotating shaft is provided with a through groove, and the top of the limiting rod penetrates through the connecting block and the through groove and is movably connected with the inner cavity of the through groove.

Preferably, one side fixedly connected with movable rod of fly leaf, first spacing groove has been seted up to one side of connecting block inner chamber, the one end that the movable rod kept away from the fly leaf extends to the inner chamber of first spacing groove and with the inner chamber sliding connection of first spacing groove.

Preferably, the slide bar is located the equal fixedly connected with stopper in both sides of slide cartridge inner chamber one end, the second spacing groove has all been seted up to the both sides of slide cartridge inner chamber, the one end that the slide bar was kept away from to the stopper extend to the inner chamber in second spacing groove and with the inner chamber sliding connection in second spacing groove.

Preferably, the bottom of the connecting block is fixedly connected with a limiting strip, a third limiting groove is formed in the bottom of the inner cavity of the connecting groove, and the limiting strip extends to the inner cavity of the third limiting groove and is movably connected with the inner cavity of the third limiting groove.

Preferably, the front face of the fan shell is in threaded connection with a protective cover, and a filter screen is arranged on the front face of the protective cover.

Preferably, the bottom of the fan housing is fixedly connected with four stabilizer bars, and the four stabilizer bars are uniformly arranged at the bottom of the fan housing.

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

1. the utility model discloses a press the gag lever post, the gag lever post atress moves down, the gag lever post drives the fly leaf downstream, the fly leaf drives the slide bar downstream, the slide bar drives reset spring downstream compression deformation, through pulling the blade body, the blade body drives the connecting block to move to one side, make the connecting block break away from the inner chamber of spread groove, thereby dismantle the blade body, otherwise through putting the connecting block into the inner chamber of spread groove, the connecting block drives the gag lever post to move to one side, until the gag lever post moves to the bottom of logical groove, drive the slide bar upward movement through reset spring's elasticity, the slide bar drives fly leaf and gag lever post upward movement, enter the inner chamber of logical groove through the gag lever post and thereby install, solved current axial compressor because fan and blade adopt welding and bolt's method to fix it more, so that it is not convenient to dismantle and change the blade, thereby leading to the problem of reduced practicality and work efficiency of fan.

2. The utility model has the advantages that the through groove is arranged, the effect of limiting the limiting rod is achieved, the situation of position deviation of the limiting rod during movement is avoided, the movable rod and the first limit groove are arranged, so that the effect of limiting the movable plate is achieved, the movable plate is prevented from being misplaced during movement, ensures the stability of the movable plate during movement, solves the problem of dislocation of the slide bar during movement by arranging the limit block and the second limit groove, thereby ensuring the stability of the sliding rod during the movement, playing a role of limiting the connecting block by arranging the limiting strip and the third limiting groove, avoiding the problem of dislocation of the connecting block during the movement, the protective cover has the effect of protecting the shell of the fan, the filter screen has the effect of preventing dust, through setting up the stabilizer bar, played the effect to fan housing steady support, avoided the condition that the fan housing appears rocking.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial three-dimensional structure of the blower housing and the rotating shaft of the present invention;

FIG. 3 is a schematic view of the connecting sectional structure of the rotating shaft and the blade body of the present invention;

fig. 4 is a schematic diagram of a partial enlarged structure shown in fig. 3 according to the present invention.

In the figure: 1. a fan housing; 2. a rotating shaft; 3. a blade body; 4. connecting blocks; 5. connecting grooves; 6. a slide cylinder; 7. a slide bar; 8. a return spring; 9. a movable plate; 10. a limiting rod; 11. a through groove; 12. a movable rod; 13. a first limit groove; 14. a limiting block; 15. a second limit groove; 16. a limiting strip; 17. a third limiting groove; 18. a protective cover; 19. a stabilizer bar.

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.

The utility model discloses a fan housing 1, pivot 2, blade body 3, connecting block 4, spread groove 5, slide cartridge 6, slide bar 7, reset spring 8, fly leaf 9, gag lever post 10, lead to groove 11, movable rod 12, first spacing groove 13, stopper 14, second spacing groove 15, spacing strip 16, third spacing groove 17,

protection casing

18 and 19 parts of stabilizer bar are the general standard or the part that technical staff in the field knows, its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental approach.

Referring to fig. 1-4, an axial flow fan capable of adjusting blade angles includes a fan housing 1, a rotating shaft 2 movably connected to an inner cavity of the fan housing 1, a blade body 3 movably connected to a surface of the rotating shaft 2, a connecting block 4 fixedly connected to an end of the blade body 3, a connecting groove 5 formed on a surface of the rotating shaft 2, an end of the connecting block 4 remote from the blade body 3 extending to an inner cavity of the connecting groove 5 and movably connected to an inner cavity of the connecting groove 5, a slide cylinder 6 fixedly connected to a bottom of the inner cavity of the connecting block 4, a slide rod 7 slidably connected to an inner cavity of the slide cylinder 6, a return spring 8 fixedly connected to a bottom of the inner cavity of the slide cylinder 6, a top of the return spring 8 fixedly connected to the slide rod 7, a movable plate 9 fixedly connected to a top of the slide rod 7, a limiting rod 10 fixedly connected to a top of the movable plate 9, the limiting rod 10 moving downward under a force when pressed, the limiting rod 10 drives the movable plate 9 to move downwards, the movable plate 9 drives the sliding rod 7 to move downwards, the sliding rod 7 drives the reset spring 8 to move downwards and compress and deform, the blade body 3 is pulled, the blade body 3 drives the connecting block 4 to move towards one side, the connecting block 4 is separated from the inner cavity of the connecting groove 5, so that the blade body 3 is disassembled, otherwise, the connecting block 4 is placed in the inner cavity of the connecting groove 5, the connecting block 4 drives the limiting rod 10 to move towards one side until the limiting rod 10 moves to the bottom of the through groove 11, the sliding rod 7 is driven to move upwards by the reset elasticity of the reset spring 8, the sliding rod 7 drives the movable plate 9 and the limiting rod 10 to move upwards, and the limiting rod 10 enters the inner cavity of the through groove 11 to be installed, and the problem that the existing axial flow fan and blades are fixed by adopting methods of welding and bolts is solved, so that the blades are not convenient to disassemble and replace, thereby leading to the problem of reduced practicality and work efficiency of fan.

In this embodiment, specifically, logical groove 11 has been seted up in the front of pivot 2, the top through connection piece 4 of gag lever post 10 with lead to groove 11 and with the inner chamber swing joint that leads to groove 11, through setting up logical groove 11, played and carried out spacing effect to gag lever post 10, avoid gag lever post 10 the condition that the offset appears when the motion.

In this embodiment, specifically, one side fixedly connected with movable rod 12 of fly leaf 9, first spacing groove 13 has been seted up to one side of connecting block 4 inner chamber, movable rod 12 keeps away from one end of fly leaf 9 and extends to the inner chamber of first spacing groove 13 and with the inner chamber sliding connection of first spacing groove 13, through setting up movable rod 12 and first spacing groove 13, has played the spacing effect to fly leaf 9, avoids the condition that dislocation appears when the fly leaf 9 moves, has ensured the stability when fly leaf 9 moves.

In this embodiment, it is concrete, slide bar 7 is located the equal fixedly connected with stopper 14 in both sides of slide 6 inner chamber one end, second spacing groove 15 has all been seted up to the both sides of slide 6 inner chamber, stopper 14 keeps away from the one end of slide bar 7 extend to the inner chamber of second spacing groove 15 and with the inner chamber sliding connection of second spacing groove 15, through setting up stopper 14 and second spacing groove 15, the problem of dislocation when having solved slide bar 7 motion, thereby stability when having ensured slide bar 7 motion.

In this embodiment, it is concrete, connecting block 4's bottom fixedly connected with spacing 16, third spacing groove 17 has been seted up to the bottom of spread groove 5 inner chamber, spacing 16 extend to the inner chamber of third spacing groove 17 and with the inner chamber swing joint of third spacing groove 17, through setting up spacing 16 and third spacing groove 17, played the spacing effect to connecting block 4, avoid connecting block 4 to appear the problem of dislocation when the motion.

In this embodiment, specifically, fan housing 1's front threaded connection has protection casing 18, and protection casing 18's front is provided with the filter screen, through setting up protection casing 18, has played the effect of protection to fan housing 1, through setting up the filter screen, has played dirt-proof effect.

In this embodiment, specifically, bottom fixedly connected with stabilizer bar 19 of fan housing 1, the quantity of stabilizer bar 19 is four, and the even range in fan housing 1's bottom of four stabilizer bar 19, through setting up stabilizer bar 19, has played the effect to fan housing 1 steady support, avoids fan housing 1 the condition that rocks to appear.

When the axial flow fan is used, the limiting rod 10 is forced to move downwards by pressing the limiting rod 10, the limiting rod 10 drives the movable plate 9 to move downwards, the movable plate 9 drives the slide rod 7 to move downwards, the slide rod 7 drives the reset spring 8 to move downwards to be compressed and deformed, the blade body 3 drives the connecting block 4 to move towards one side by pulling the blade body 3, so that the connecting block 4 is separated from an inner cavity of the connecting groove 5, and the blade body 3 is disassembled, otherwise, the connecting block 4 is placed in the inner cavity of the connecting groove 5, the connecting block 4 drives the limiting rod 10 to move towards one side until the limiting rod 10 moves to the bottom of the through groove 11, the slide rod 7 is driven to move upwards by the reset elasticity of the reset spring 8, the slide rod 7 drives the movable plate 9 and the limiting rod 10 to move upwards and enters the inner cavity of the through the limiting rod 10 to be installed, and the problem that the existing axial flow fan and blades are mostly fixed by adopting welding and bolt methods is solved, so that it is inconvenient to detach and replace the blades, thereby resulting in a problem of lowering the practicality and working efficiency of the blower.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the control circuit belongs to the common knowledge in the field, and the present application document is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An axial-flow fan of adjustable blade angle, includes fan shell (1), its characterized in that: the inner cavity of the fan shell (1) is movably connected with a rotating shaft (2), the surface of the rotating shaft (2) is movably connected with a blade body (3), one end of the blade body (3) is fixedly connected with a connecting block (4), the surface of the rotating shaft (2) is provided with a connecting groove (5), one end of the connecting block (4) far away from the blade body (3) extends to the inner cavity of the connecting groove (5) and is movably connected with the inner cavity of the connecting groove (5), the bottom of the inner cavity of the connecting block (4) is fixedly connected with a sliding cylinder (6), the inner cavity of the sliding cylinder (6) is connected with a sliding rod (7) in a sliding way, the bottom of the inner cavity of the sliding cylinder (6) is fixedly connected with a return spring (8), the top of reset spring (8) and slide bar (7) fixed connection, the top fixedly connected with fly leaf (9) of slide bar (7), the top fixedly connected with gag lever post (10) of fly leaf (9).

2. An adjustable blade angle axial flow fan according to claim 1, wherein: the front of the rotating shaft (2) is provided with a through groove (11), and the top of the limiting rod (10) penetrates through the connecting block (4) and the through groove (11) and is movably connected with the inner cavity of the through groove (11).

3. An adjustable blade angle axial flow fan according to claim 1, wherein: one side fixedly connected with movable rod (12) of fly leaf (9), first spacing groove (13) have been seted up to one side of connecting block (4) inner chamber, movable rod (12) keep away from the one end of fly leaf (9) extend to the inner chamber of first spacing groove (13) and with the inner chamber sliding connection of first spacing groove (13).

4. An adjustable blade angle axial flow fan according to claim 1, wherein: the equal fixedly connected with stopper (14) in both sides that slide bar (7) are located slide cartridge (6) inner chamber one end, second spacing groove (15) have all been seted up to the both sides of slide cartridge (6) inner chamber, stopper (14) keep away from the one end of slide bar (7) extend to the inner chamber of second spacing groove (15) and with the inner chamber sliding connection of second spacing groove (15).

5. An adjustable blade angle axial flow fan according to claim 1, wherein: the bottom fixedly connected with spacing (16) of connecting block (4), third spacing groove (17) have been seted up to the bottom in spread groove (5) inner chamber, spacing (16) extend to the inner chamber of third spacing groove (17) and with the inner chamber swing joint of third spacing groove (17).

6. An adjustable blade angle axial flow fan according to claim 1, wherein: the front face of the fan shell (1) is in threaded connection with a protective cover (18), and a filter screen is arranged on the front face of the protective cover (18).

7. An adjustable blade angle axial flow fan according to claim 1, wherein: the bottom of fan shell (1) fixedly connected with stabilizer bar (19), the quantity of stabilizer bar (19) is four, and the even arrangement in the bottom of fan shell (1) of four stabilizer bar (19).