CN112360775A

CN112360775A - High-efficient axial fan impeller

Info

Publication number: CN112360775A
Application number: CN202011177118.3A
Authority: CN
Inventors: 黄广顺; 李学海
Original assignee: Chuzhou Sanjiewai Industrial Design Co ltd
Current assignee: Chuzhou Sanjiewai Industrial Design Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-02-12

Abstract

The invention relates to the field of fan equipment, in particular to a high-efficiency axial flow fan impeller which comprises a rotating shaft, wherein limiting plates are fixedly connected to the upper end, the lower end, the front portion and the rear portion of the circumferential outer wall on one side of the rotating shaft, a limiting head is clamped on one side of the rotating shaft, a second mounting groove is formed in the middle of the limiting head, a first limiting groove is formed in one side, away from the rotating shaft, of the second mounting groove, a third through groove is formed in one side, away from the rotating shaft, of the first limiting groove, and a limiting ring is sleeved and fixedly connected to. The invention relates to a high-efficiency axial flow fan impeller.A rotating shaft of the high-efficiency axial flow fan impeller is provided with a first assembling wheel body and a second assembling wheel body, a first blade of the first assembling wheel body and a second blade of the second assembling wheel body are arranged in a staggered mode and are arranged at a certain angle, and when the high-efficiency axial flow fan impeller rotates, the second blade and the first blade of the first assembling wheel body are subjected to air resistance, so that the contact area between the high-efficiency axial flow fan impeller and air is increased, and the air supply effect, namely the air exhaust efficiency, of the high-efficiency axial flow fan impeller can.

Description

High-efficient axial fan impeller

Technical Field

The invention relates to the field of fan equipment, in particular to a high-efficiency axial flow fan impeller.

Background

The axial flow fan is an air flow in the same direction as the axis of the fan blade, for example, an electric fan and an air conditioner outer fan are fans operated in an axial flow mode, the axial flow fan is applied to many fields, and an impeller is one of important components on the axial flow fan.

At present used axial fan impeller is in order to guarantee mechanical strength, mostly be integrated into one piece, if when one of them blade damages on the impeller, can cause the whole unable work of axial fan, during the maintenance, need wholly change the impeller, cost of maintenance is higher, and the impeller is mostly the snap-on in axial fan's pivot, and the impeller all is located axial fan's inside, operating space is less, and need be with the help of a plurality of extracting tool during the dismouting, make the dismouting process comparatively troublesome, when the impeller rotates, the blade of impeller and the area of contact of air is less, the axial fan who installs efficiency of airing exhaust has been reduced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a high-efficiency axial flow fan impeller, which solves the problems that the existing axial flow fan impeller is mostly integrally formed in order to ensure the mechanical strength, if one blade on the impeller is damaged, the whole axial flow fan cannot work, the whole impeller needs to be replaced during maintenance, the maintenance cost is higher, the impeller is mostly directly fixed on a rotating shaft of the axial flow fan, the impeller is positioned in the axial flow fan, the operation space is smaller, a plurality of disassembling tools are needed during disassembling and assembling, the disassembling and assembling process is more troublesome, the contact area between the blade of the impeller and air is smaller when the impeller rotates, and the air exhaust efficiency of the installed axial flow fan is reduced.

The technical scheme adopted by the invention for solving the technical problems is as follows: a high-efficiency axial flow fan impeller comprises a rotating shaft, wherein the upper end and the lower end as well as the front part and the rear part of the circumferential outer wall on one side of the rotating shaft are fixedly connected with limiting plates, one side of the rotating shaft is clamped with a limiting head, the middle part of the limiting head is provided with a second mounting groove, one side of the second mounting groove, which is far away from the rotating shaft, is provided with a first limiting groove, one side of the first limiting groove, which is far away from the rotating shaft, is provided with a third through groove, the circumferential outer wall on the other side of the rotating shaft is sleeved and fixedly connected with a limiting ring, the diameter of the limiting ring is larger than the distance between two opposite limiting plates, a first assembling wheel body and a second assembling wheel body are arranged on the circumferential outer wall of the rotating shaft between the limiting ring and the limiting head, the inner wall on the other side of the rotating shaft is provided, the utility model discloses a fixed mounting groove, including extrusion chamber, pivot, first mounting groove, spacing overhead second mounting groove phase-match, the internally mounted of first mounting groove has coupling mechanism, coupling mechanism and spacing head are connected, the fixed chamber has been seted up to one side that the extrusion chamber is close to the pivot middle part, the fixed slot has all been seted up on the lower extreme inner wall on one side that the fixed chamber is close to the pivot, the fixed chamber runs through on being close to one side middle part inner wall of pivot and has been seted up first mounting groove, the overhead second mounting groove.

The elastic mechanism comprises a sliding block, the sliding block is connected inside the extrusion cavity in a sliding mode, one side, close to the rotating shaft, of the sliding block is located inside the fixed cavity, a sliding hole is formed in the middle of the sliding block in a penetrating mode, a sliding rod is connected inside the sliding hole in a penetrating mode, one end, away from the middle of the rotating shaft, of the sliding rod is fixedly connected with one side inner wall, away from the middle of the rotating shaft, of the extrusion cavity, the sliding rod is located on the outer wall of the portion, located inside the extrusion cavity, of the portion of the circumference, of the sliding rod, a compression spring is sleeved on the outer wall of the portion, the compression spring is close to one end, located inside the extrusion cavity, of.

Specifically, the slider is located the first stopper of the equal fixedly connected with of lower extreme on one side of extrusion intracavity portion, the equal sliding connection of first stopper is in the inside in homonymy second spacing groove.

Specifically, coupling mechanism is including changeing the board, it is located the inside in fixed chamber to change the board, it is all less than the distance between the first mounting groove front and back than the distance between the first mounting groove distance between the lower extreme greatly on the first mounting groove to change the distance between the lower extreme on the board, it offsets to change one side at board pivot middle part and elastic mechanism's slider, it is close to one side middle part fixedly connected with connecting rod at pivot middle part to change the board, the one end that the board was kept away from to the connecting rod passes first mounting groove and second mounting groove in proper order and extends to first spacing inslot portion, the connecting rod is located the one end fixedly connected with sliding tray of first spacing inslot portion, one side that the connecting rod was kept away from to the sliding tray runs through third mounting groove and middle part fixedly connected with fixed head, the.

Specifically, the equal fixedly connected with fixture block of lower extreme on one side that the commentaries on classics board is close to the pivot middle part, the equal joint of fixture block is in the inside of homonymy fixed slot.

Specifically, overlap on the circumference outer wall of sliding tray and establish and fixedly connected with second stopper, the second stopper is the loop configuration, the sliding tray passes through second stopper sliding connection in the inside of first spacing groove.

Specifically, the first assembling wheel body comprises a first wheel hub, the upper end, the lower end, the front inner wall and the rear inner wall of the first wheel hub are respectively provided with a first clamping groove, the first wheel hub is clamped with a limiting plate on a rotating shaft through the first clamping grooves, one side of the first wheel hub, which is far away from the limiting ring, is abutted against a limiting head, the outer wall of the circumference of the first wheel hub is provided with a plurality of first sliding grooves, the distance between every two adjacent first sliding grooves is the same, one side of each first sliding groove, which is far away from the first wheel hub, is provided with a first through groove in a penetrating way, the first through groove and the first sliding groove at the same side are respectively communicated with the outer part of one side of the first wheel hub, which is far away from the limiting ring, the inner parts of the plurality of first sliding grooves are respectively and slidably connected with first sliding plates, one side of each first sliding plate, which is far away from the middle part of, the first blades are all located outside the first hub.

Specifically, the second assembling wheel body comprises a second wheel hub, the upper end, the lower end, the front inner wall and the rear inner wall of the second wheel hub are respectively provided with a second clamping groove, the second wheel hub is clamped with a limiting plate on the rotating shaft through the second clamping groove, one side of the second wheel hub, which is far away from the limiting head, is abutted against the limiting ring, one side of the second wheel hub, which is far away from the limiting ring, is abutted against the first wheel hub of the first assembling wheel body, the circumferential outer wall of the second wheel hub is provided with a plurality of second sliding grooves, the distances between every two adjacent second sliding grooves are the same, one sides of the plurality of second sliding grooves, which are far away from the middle part of the second wheel hub, are respectively provided with a second through groove in a penetrating way, the second through groove and the second sliding grooves on the same side are respectively communicated with the outer parts of one sides of the second wheel hub, which are far away from the limiting ring, the insides of the plurality of the second sliding, the equal sliding connection of fourth slide is in the inside that the groove was led to the homonymy second, the fixed plate is all pasted on second wheel hub's circumference outer wall, the fixed plate is kept away from the equal slope fixedly connected with second blade in one side at second wheel hub middle part, a plurality of second blades of second assembly wheel body and a plurality of first blade of first assembly wheel body set up in a staggered way.

The invention has the beneficial effects that:

(1) the invention relates to a high-efficiency axial flow fan impeller.A rotating shaft of the high-efficiency axial flow fan impeller is provided with a first assembling wheel body and a second assembling wheel body, a first blade of the first assembling wheel body and a second blade of the second assembling wheel body are arranged in a staggered mode and are arranged at a certain angle, and when the high-efficiency axial flow fan impeller rotates, the second blade and the first blade of the first assembling wheel body are subjected to air resistance, so that the contact area between the high-efficiency axial flow fan impeller and air is increased, and the air supply effect, namely the air exhaust efficiency, of the high-efficiency axial flow fan impeller can.

(2) According to the invention, the first assembling impeller and the second assembling impeller are clamped on the rotating shaft through the limiting head and the limiting ring, the first blade of the first assembling impeller body is clamped on the first hub through the first sliding plate and the second sliding plate, the second blade of the second assembling impeller body is clamped on the second hub through the third sliding plate, the fourth sliding plate and the fixing plate, when one blade of the first assembling impeller body is damaged or one blade of the second assembling impeller body is damaged, the lower limiting head can be disassembled, the first assembling impeller body or the second assembling impeller body is disassembled, and the damaged first blade or second blade is replaced without integral replacement, so that the maintenance cost is reduced.

(3) The limiting head is fixed on the rotating shaft through the elastic mechanism and the connecting mechanism, when the limiting head is disassembled, the limiting head can be disassembled from the rotating shaft through the fixing head only by rotating the fixing head of the connecting mechanism and rotating the rotating plate from the inside of the fixing cavity through the connecting rod, then the first assembling wheel body and the second assembling wheel body can be disassembled, the required operation space is small, and other tools are not needed when the limiting head is assembled again, so that the disassembling and assembling process is simple.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a sectional view of an impeller of an efficient axial flow fan provided by the present invention;

FIG. 2 is a sectional view of the impeller of the axial flow fan shown in FIG. 1 at A;

FIG. 3 is a sectional view of the impeller B of the axial flow fan in FIG. 1;

FIG. 4 is a schematic view of a high-efficiency axial flow fan impeller spacing head structure according to the present invention;

FIG. 5 is a schematic structural view of a first mounting groove and a second mounting groove of an impeller of an efficient axial flow fan according to the present invention;

FIG. 6 is a schematic structural view of a first assembled wheel body of an efficient axial flow fan impeller provided by the present invention;

FIG. 7 is a schematic structural view of a second assembly wheel body of an efficient axial flow fan impeller provided by the present invention;

fig. 8 is a side view of an efficient axial flow fan impeller provided by the present invention.

In the figure: 1. a rotating shaft; 2. a limiting plate; 3. a limiting ring; 4. an extrusion chamber; 5. an elastic mechanism; 51. a slider; 52. a first stopper; 53. a slide hole; 54. a slide bar; 55. a compression spring; 6. a connecting mechanism; 61. rotating the plate; 62. a clamping block; 63. a connecting rod; 64. a slide plate; 65. a second limiting block; 66. a fixed head; 7. a limiting head; 8. a first assembly wheel body; 81. a first hub; 82. a first card slot; 83. a first chute; 84. a first through groove; 85. a first slide plate; 86. a second slide plate; 87. a first blade; 9. a second assembly wheel body; 91. a second hub; 92. a second chute; 93. a second through groove; 94. a third slide plate; 95. a fourth slide plate; 96. a fixing plate; 97. a second blade; 98. a second card slot; 10. a fixed cavity; 11. a first mounting groove; 12. a second mounting groove; 13. a first limit groove; 14. a third through groove; 15. fixing grooves; 16. a second limit groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-8, the efficient axial flow fan impeller according to the present invention includes a rotating shaft 1, wherein the upper end and the lower end and the front and rear portions of the circumferential outer wall of one side of the rotating shaft 1 are fixedly connected with limit plates 2, one side of the rotating shaft 1 is clamped with a limit head 7, the middle portion of the limit head 7 is provided with a second mounting groove 12, one side of the second mounting groove 12 away from the rotating shaft 1 is provided with a first limit groove 13, one side of the first limit groove 13 away from the rotating shaft 1 is provided with a third through groove 14, the circumferential outer wall of the other side of the rotating shaft 1 is sleeved and fixedly connected with a limit ring 3, the diameter of the limit ring 3 is larger than the distance between two opposite limit plates 2, the circumferential outer wall of the rotating shaft 1 between the limit ring 3 and the limit head 7 is provided with a first assembly wheel body 8 and a second assembly wheel body 9, the inner wall of, all seted up second spacing groove 16 on the upper and lower end inner wall in extrusion chamber 4, the internally mounted in extrusion chamber 4 has elastic mechanism 5, extrusion chamber 4 has been close to one side at 1 middle part of pivot and has seted up fixed chamber 10, fixed chamber 10 has all seted up fixed slot 15 on being close to one side upper and lower end inner wall of pivot 1, fixed chamber 10 runs through on being close to one side middle part inner wall of pivot 1 and has seted up first mounting groove 11, the second mounting groove 12 phase-match of seting up on first mounting groove 11 and spacing head 7, the internally mounted of first mounting groove 11 has coupling mechanism 6, coupling mechanism 6 and spacing head 7 are connected, and accessible coupling mechanism 6 fixes spacing head 7 on pivot 1, conveniently fixes first assembly wheel body 8 and second assembly wheel body 9 in pivot 1.

Specifically, the first assembling wheel 8 includes a first wheel hub 81, the upper and lower ends and the front and rear inner walls of the first wheel hub 81 are respectively provided with a first clamping groove 82, the first wheel hub 81 is clamped with the limiting plate 2 on the rotating shaft 1 through the first clamping groove 82, one side of the first wheel hub 81, which is far away from the limiting ring 3, is abutted against the limiting head 7, the outer wall of the circumference of the first wheel hub 81 is provided with a plurality of first sliding grooves 83, the distance between two adjacent first sliding grooves 83 is the same, one side of the first sliding grooves 83, which is far away from the first wheel hub 81, is respectively provided with a first through groove 84 in a penetrating manner, the first through groove 84 and the first sliding grooves 83 on the same side are respectively communicated with the outer part of one side of the first wheel hub 81, which is far away from the limiting ring 3, the inner parts of the plurality of the first sliding grooves 83 are respectively connected with a first sliding plate 85 in a sliding manner, one side of the first sliding plate 85, the second sliding plates 86 are connected inside the first through grooves 84 on the same side in a sliding mode, the first blades 87 are located outside the first hub 81, and the first blades 87 are fixed on the first hub 81 through the second sliding plates 86 and the first sliding plates 85.

Specifically, the second assembly wheel 9 includes a second wheel hub 91, the upper and lower ends and the front and rear inner walls of the second wheel hub 91 are respectively provided with a second clamping groove 98, the second wheel hub 91 is clamped with the limiting plate 2 on the rotating shaft 1 through the second clamping groove 98, one side of the second wheel hub 91, which is far away from the limiting head 7, is abutted against the limiting ring 3, one side of the second wheel hub 91, which is far away from the limiting ring 3, is abutted against the first wheel hub 81 of the first assembly wheel 8, the circumferential outer wall of the second wheel hub 91 is provided with a plurality of second sliding grooves 92, the distances between two adjacent second sliding grooves 92 are the same, one side of the second sliding grooves 92, which is far away from the middle part of the second wheel hub 91, is provided with a second through groove 93 through, the second through groove 93 and the same side of the second sliding grooves 92 are both communicated with the outside of one side of the second wheel hub 91, which is far away from the limiting ring 3, and the inside of the second sliding, the third sliding plate 94 is fixedly connected with a fixing plate 96 through a fourth sliding plate 95 on one side far away from the middle of the second hub 91, the fourth sliding plates 95 are slidably connected inside the second through grooves 93 on the same side, the fixing plate 96 is attached to the circumferential outer wall of the second hub 91, the fixing plate 96 is fixedly connected with second blades 97 on one side far away from the middle of the second hub 91 in an inclined manner, the second blades 97 of the second assembly wheel body 9 and the first blades 87 of the first assembly wheel body 8 are arranged in a staggered manner, the second blades 97 and the first blades 87 of the first assembly wheel body 8 are arranged in a staggered manner and form a certain angle, and when the second blades 87 and the first blades 87 of the first assembly wheel body 8 are rotated, the resistance of air is applied to the second blades 87 and the first blades 87 of the first assembly wheel body 8, the contact area between the second blades and the air when the air supply device rotates is increased, and the air supply effect.

Specifically, elastic mechanism 5 includes slider 51, slider 51 sliding connection is in the inside of extrusion chamber 4, one side that slider 51 is close to pivot 1 is located the inside of fixed chamber 10, slider 51 is located the first stopper 52 of the equal fixedly connected with of lower extreme on one side of extrusion chamber 4 inside, the equal sliding connection of first stopper 52 is in the inside of homonymy second spacing groove 16, slide opening 53 has been run through at slider 51's middle part, sliding connection has a slide bar 54 is run through to slide opening 53's inside, one end and the one side inner wall fixed connection that pivot 1 middle part was kept away from in pivot 1 is kept away from in slide bar 54 and extrusion chamber 4, the cover is equipped with compression spring 55 on the partial circumference outer wall that slide bar 54 is located extrusion chamber 4 inside, compression spring 55 is close to the one end of pivot 1 and the one side fixed connection that slider 51 is located extrusion chamber 4 inside, compression spring 55 keeps away from the one end at pivot 1 middle part and one side inner wall fixed connection that extrusion chamber 4 And (3) fixed connection, wherein the sliding block 51 is abutted against the connecting mechanism 6 by utilizing the elastic action of the compression spring 55, so that the limiting head 7 is conveniently fixed by matching the elastic mechanism 5 and the connecting mechanism 6, and the limiting head 7 is conveniently dismounted.

Specifically, the connecting mechanism 6 includes a rotating plate 61, the rotating plate 61 is located inside the fixed cavity 10, the distance between the upper end and the lower end of the rotating plate 61 is smaller than the distance between the upper end and the lower end of the first installation groove 11, the distance is larger than the distance between the front part and the rear part of the first installation groove 11, one side of the middle part of the rotating shaft 1 of the rotating plate 61 abuts against the sliding block 51 of the elastic mechanism 5, a connecting rod 63 is fixedly connected to the middle part of one side of the rotating plate 61 close to the middle part of the rotating shaft 1, one end of the connecting rod 63 far away from the rotating plate 61 sequentially penetrates through the first installation groove 11 and the second installation groove 12 and extends to the inside of the first limiting groove 13, one end of the connecting rod 63 located inside the first limiting groove 13 is fixedly connected with a sliding disc 64, one side of the sliding disc 64 far away from the connecting rod 63 penetrates through the third through groove 14 and the middle part is fixedly connected with a fixing head 66, the fixing head 66 is of, the limiting head 7 and the limiting ring 3 are matched to clamp the first assembling wheel body 8 and the second assembling wheel body 9.

Specifically, the equal fixedly connected with fixture block 62 of lower extreme on the one side that changes board 61 and is close to pivot 1 middle part, the equal joint of fixture block 62 is in the inside of homonymy fixed slot 15, is convenient for fix change board 61 in the inside position of fixed chamber 10, prevents to change board 61 and rotates in the inside of fixed chamber 10.

Specifically, the cover is established and fixedly connected with second stopper 65 on the circumference outer wall of sliding tray 64, second stopper 65 is the loop configuration, sliding tray 64 makes things convenient for sliding tray 64 to slide in the inside of first spacing groove 13 through second stopper 65 sliding connection in the inside of first spacing groove 13, makes things convenient for connecting rod 63 to extrude spacing head 7 from pivot 1 simultaneously.

When the axial flow fan is used, the rotating shaft 1 is fixed on the axial flow fan, then the second assembling wheel body 9 and the first assembling wheel body 8 are sleeved on the rotating shaft 1 in sequence, the rotating plate 61 and the connecting rod 63 are inserted into the first mounting groove 11 and the second mounting groove 12, the rotating plate 61 and the connecting rod 63 slide, the rotating plate 61 slides into the fixed cavity 10, the sliding block 51 is extruded through the rotating plate 61, the sliding block 51 is completely extruded into the extrusion cavity 4, the compression spring 55 is in a compression state at the moment, then the connecting rod 63 is rotated through the fixed head 66, the connecting rod 63 drives the rotating plate 61 to rotate in the fixed cavity 10, the rotating plate 61 deviates from the original position, then the fixed head 66 is slowly loosened, under the elastic action of the compression spring 55, the fixture block 62 abuts against the inner wall of the fixed cavity 10, then the rotating plate 61 continues to rotate, when the two fixture blocks 62 on the rotating plate 61 are aligned with the two fixing grooves 15 on the inner wall of the fixed cavity 10, the fixture block 62 is squeezed into the fixing groove 15 on the same side by the compression spring 55, the position of the rotating plate 61 is fixed, the limit head 7 is clamped on the rotating shaft 1 and is matched with the limit ring 3 to press the first assembly wheel 8 and the second assembly wheel 9 together, then the axial flow fan is started to start air exhaust operation, because the first blades 87 of the first assembly wheel 8 and the second blades 97 of the second assembly wheel 9 are arranged in a staggered way and are arranged at a certain angle, when the first blades 87 and the second blades 97 of the first assembly wheel 8 rotate, the second blades 97 and the first blades 97 of the first assembly wheel 8 are subjected to air resistance, the contact area between the first blades and air is increased when the first blades and the second blades rotate, the air supply effect, namely the air exhaust efficiency, of the invention can be improved, when one of the first blades 87 or the second blades 97 of the invention is damaged, the fixing head 66 is squeezed, the fixture block 62 is squeezed from the fixing groove 15, and the rotating plate 61 is, then the fixing head 66 is loosened, the compression spring 55 pushes the fixture block 62 against the inner wall of the fixing cavity 10, then the rotating plate 61 is rotated, when the rotating plate 61 is aligned with the first mounting groove 11, the compression spring 55 pushes the rotating plate 61 out of the fixing cavity 10, the limiting head 7 is pushed down from the rotating shaft 1, then the rotating plate 61 and the connecting rod 63 are pulled out through the limiting head 7, the first assembling wheel body 8 and the second assembling wheel body 9 are dismounted, the damaged first blade 87 or the second blade 97 is replaced, and then the steps are repeated for mounting.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high-efficient axial fan impeller, includes pivot (1), its characterized in that, the upper and lower end and the front and back portion of pivot (1) one side circumference outer wall all fixedly connected with limiting plate (2), one side joint of pivot (1) has limiting head (7), second mounting groove (12) have been seted up at the middle part of limiting head (7), one side that pivot (1) was kept away from in second mounting groove (12) has seted up first spacing groove (13), one side that pivot (1) was kept away from in first spacing groove (13) has seted up third logical groove (14), establish and fixedly connected with spacing ring (3) on the opposite side circumference outer wall of pivot (1), the distance between two relative limiting plate (2) of diameter ratio of spacing ring (3) is big, install first equipment wheel body (8) and second equipment wheel body (9) on pivot (1) circumference outer wall between spacing ring (3) and limiting head (7), extrusion chamber (4) have been seted up to the opposite side inner wall of pivot (1), second spacing groove (16) have all been seted up on the upper and lower end inner wall in extrusion chamber (4), the internally mounted elastic mechanism (5) in extrusion chamber (4), extrusion chamber (4) are close to one side at pivot (1) middle part and have been seted up fixed chamber (10), fixed chamber (10) are close to and have all been seted up on the one side of pivot (1) on the lower extreme inner wall fixed slot (15), run through on one side middle part inner wall that fixed chamber (10) are close to pivot (1) and have seted up first mounting groove (11), second mounting groove (12) phase-match of seting up on first mounting groove (11) and spacing head (7), the internally mounted of first mounting groove (11) has coupling mechanism (6), coupling mechanism (6) are connected with spacing head (7).

2. A high efficiency axial flow fan impeller according to claim 1, wherein: the elastic mechanism (5) comprises a sliding block (51), the sliding block (51) is connected in the extrusion cavity (4) in a sliding way, one side of the sliding block (51) close to the rotating shaft (1) is positioned in the fixed cavity (10), a sliding hole (53) is formed in the middle of the sliding block (51) in a penetrating manner, a sliding rod (54) is connected inside the sliding hole (53) in a penetrating and sliding manner, one end of the sliding rod (54) far away from the middle part of the rotating shaft (1) is fixedly connected with the inner wall of one side of the extrusion cavity (4) far away from the middle part of the rotating shaft (1), a compression spring (55) is sleeved on the partial circumferential outer wall of the sliding rod (54) positioned in the extrusion cavity (4), one end of the compression spring (55) close to the rotating shaft (1) is fixedly connected with one side of the sliding block (51) positioned in the extrusion cavity (4), one end of the compression spring (55) far away from the middle part of the rotating shaft (1) is fixedly connected with the inner wall of one side of the extrusion cavity (4) far away from the middle part of the rotating shaft (1).

3. A high efficiency axial flow fan impeller according to claim 2, wherein: the upper end and the lower end of the sliding block (51) on one side inside the extrusion cavity (4) are fixedly connected with a first limiting block (52), and the first limiting block (52) is connected inside the second limiting groove (16) on the same side in a sliding mode.

4. A high efficiency axial flow fan impeller according to claim 1, wherein: the connecting mechanism (6) comprises a rotating plate (61), the rotating plate (61) is positioned in a fixed cavity (10), the distance between the upper end and the lower end of the rotating plate (61) is smaller than the distance between the upper end and the lower end of a first mounting groove (11) and the distance between the front part and the rear part of the first mounting groove (11), one side of the middle part of a rotating shaft (1) of the rotating plate (61) is abutted against a sliding block (51) of an elastic mechanism (5), one side of the middle part of the rotating plate (61) close to the middle part of the rotating shaft (1) is fixedly connected with a connecting rod (63), one end of the connecting rod (63) far away from the rotating plate (61) sequentially penetrates through the first mounting groove (11) and a second mounting groove (12) and extends to the inside of a first limiting groove (13), one end of the connecting rod (63) positioned in the inside of the first limiting groove (13) is fixedly connected with a sliding disc (64), one side of the sliding disc (64) far away from the connecting rod (63) penetrates through a, the fixing head (66) is of an arc-shaped structure.

5. The high efficiency axial flow fan impeller of claim 4, wherein: the rotating plate (61) is close to the clamping blocks (62) fixedly connected with the upper end and the lower end of one side of the middle part of the rotating shaft (1), and the clamping blocks (62) are clamped in the fixing grooves (15) on the same side.

6. The high efficiency axial flow fan impeller of claim 4, wherein: the circumference outer wall of sliding tray (64) is gone up the cover and is established and fixedly connected with second stopper (65), second stopper (65) are the loop configuration, sliding tray (64) pass through second stopper (65) sliding connection in the inside of first spacing groove (13).

7. A high efficiency axial flow fan impeller according to claim 1, wherein: the first assembling wheel body (8) comprises a first wheel hub (81), first clamping grooves (82) are formed in the upper end and the lower end of the first wheel hub (81) and the inner walls of the front portion and the rear portion of the first wheel hub (81), the first wheel hub (81) is connected with a limiting plate (2) on the rotating shaft (1) in a clamping mode through the first clamping grooves (82), one side, away from the limiting ring (3), of the first wheel hub (81) abuts against a limiting head (7), a plurality of first sliding grooves (83) are formed in the outer wall of the circumference of the first wheel hub (81), the distances between every two adjacent first sliding grooves (83) are identical, a first through groove (84) penetrates through one side, away from the first wheel hub (81), of each first sliding groove (84) and the first sliding groove (83) on the same side are communicated with the outer portion of one side, away from the limiting ring (3), and a first sliding plate (85) is connected to the inner portions of the first sliding grooves (83) in a sliding mode, one side of the first sliding plate (85) far away from the middle part of the first hub (81) is fixedly connected with a first blade (87) in an inclined mode through a second sliding plate (86), the second sliding plate (86) is connected to the inside of the first through groove (84) in the same side in a sliding mode, and the first blade (87) is located outside the first hub (81).

8. A high efficiency axial flow fan impeller according to claim 1, wherein: second equipment wheel body (9) includes second wheel hub (91), second draw-in groove (98) have all been seted up on the upper and lower end of second wheel hub (91) and the front and back inner wall, limiting plate (2) joint on second draw-in groove (98) and pivot (1) is passed through in second wheel hub (91), one side that spacing head (7) were kept away from in second wheel hub (91) supports on spacing ring (3), it offsets for one side of spacing ring (3) and first wheel hub (81) of first equipment wheel body (8) to keep away from in second wheel hub (91), set up on the circumference outer wall of second wheel hub (91) with a plurality of second spout (92), adjacent two distance between second spout (92) is the same, and is a plurality of one side that second wheel hub (91) middle part was kept away from in second spout (92) all runs through and has seted up second logical groove (93), second logical groove (93) and homonymy second spout (92) all keep away from one side of spacing ring (3) with second wheel hub (91) one side and all run through and have seted up second logical groove (93), second logical groove The portion communicates with each other, and is a plurality of the equal sliding connection in inside of second spout (92) has third slide (94), one side that second wheel hub (91) middle part was kept away from in third slide (94) all is through fourth slide (95) fixedly connected with fixed plate (96), the equal sliding connection in homonymy second of fourth slide (95) leads to the inside of groove (93), fixed plate (96) all paste on the circumference outer wall of second wheel hub (91), one side that second wheel hub (91) middle part was kept away from in fixed plate (96) all inclines fixedly connected with second blade (97), a plurality of second blade (97) of second assembly wheel body (9) and a plurality of first blade (87) of first assembly wheel body (8) set up in a staggered way.