CN219733729U - Split type low-noise high-pressure fan blade - Google Patents
Split type low-noise high-pressure fan blade Download PDFInfo
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- CN219733729U CN219733729U CN202322318971.8U CN202322318971U CN219733729U CN 219733729 U CN219733729 U CN 219733729U CN 202322318971 U CN202322318971 U CN 202322318971U CN 219733729 U CN219733729 U CN 219733729U
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000009467 reduction Effects 0.000 claims abstract description 21
- 241000883990 Flabellum Species 0.000 claims description 17
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- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 235000001968 nicotinic acid Nutrition 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 17
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- 238000005299 abrasion Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
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- 238000001746 injection moulding Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of high-pressure fan equipment, and relates to a split type low-noise high-pressure fan blade, wherein a connecting mechanism is arranged on the outer side of a wheel disc, the connecting mechanism comprises a connecting groove, a clamping block and a limiting groove, a stop mechanism is arranged in an inner cavity of the connecting groove, the stop mechanism comprises a gasket, a positioning groove, a positioning opening and a limiting block, a noise reduction mechanism is arranged at the position, corresponding to the connecting mechanism, on the outer side of the wheel disc, the noise reduction mechanism comprises a fan blade body, a noise reduction gear slot, a small fan wing, a connecting support, a clamping groove and a positioning strip, a shaft mounting groove is formed in the inner cavity of the wheel disc, a torque disc is movably connected in the inner cavity of the shaft mounting groove, and the problems that high pressure, high energy efficiency and low noise cannot be met in the actual use process of the existing equipment are solved through the cooperation of the noise reduction mechanism, the stop mechanism and the connecting mechanism.
Description
Technical Field
The utility model belongs to the technical field of high-pressure fan equipment, and particularly relates to a split type low-noise high-pressure fan blade.
Background
The improvement of the Chinese cultivation industry is urgent, the building cultivation, the accurate air supply, the concentrated air exhaust, the concentrated deodorization, the negative pressure, the micro negative pressure, the house belt filtration and the accurate air supply are all generated, and various types of ventilation modes have higher requirements on the axial flow fan, namely, high pressure, high energy efficiency and low noise, while the traditional axial flow fan can not meet the market demand, the fan blade is the heart of the fan, the novel fan blade is developed, the requirements on low noise, high pressure and high efficiency are met, and the fan is the important in the development process of the fan.
CN212177496U discloses a high-efficiency and high-strength fan impeller structure, which comprises a fixed seat, a rotating shaft and a fan impeller, wherein the rotating shaft is arranged in the middle of the fixed seat, the fan impeller is arranged on the fixed seat, a fixed ring is connected below the fan impeller, a mounting groove is formed in a panel of the fixed seat, the fixed ring is arranged in the mounting groove, the fan impeller is connected with the fixed seat through the fixed ring and the mounting groove, and an assembly piece is arranged between the fixed ring and the mounting groove. However, the high-efficiency and high-strength fan impeller structure cannot meet the requirements of high pressure, high energy efficiency and low noise at the same time and cannot meet the current use requirements in the actual use process.
Disclosure of Invention
The utility model aims to provide a split type low-noise high-pressure fan blade, which is designed for noise reduction from multiple aspects, so that the advantages of low noise, high pressure and high efficiency are met, and the technical problems in the background technology are solved.
In order to achieve the above purpose, the specific technical scheme of the utility model is as follows:
the utility model provides a split type low noise high pressure fan flabellum, includes the rim plate, the outside of rim plate is provided with a plurality of coupling mechanism, coupling mechanism includes spread groove, joint piece and spacing groove, the inner chamber of spread groove is provided with stop mechanism, stop mechanism includes gasket, constant head tank, locating slot and stopper, the corresponding coupling mechanism department in the outside of rim plate is provided with a plurality of mechanisms of making an uproar that fall, it includes the flabellum body to make an uproar to fall the mechanism of making an uproar, makes an uproar tooth groove, little fan wing, connection support, joint groove and locating strip.
Preferably, the connecting groove is formed in the outer side of the wheel disc, the outer side of the clamping block is fixedly connected to the inner cavity of the connecting groove, and the limiting groove is formed in the bottom end of the inner cavity of the connecting groove.
Preferably, the surface swing joint of gasket is in the inner chamber of spread groove, constant head tank and locating port all offer in the outside of gasket, the top fixed connection of stopper is in the bottom of gasket, the surface swing joint of stopper is in the inner chamber of spacing groove.
Preferably, the surface activity joint of locating strip is in the inner chamber of locating slot, the inner chamber fixed connection of connection support is in the surface of locating strip, the bottom swing joint of connection support is in the top of gasket, the joint groove is seted up in the surface of connection support, the inner chamber activity joint of joint groove is in the surface of joint piece, the bottom fixed connection of flabellum body is in the top of connection support, the sawtooth groove of making an uproar falls is seted up in the left side of flabellum body, the back fixed connection of little fan wing is in the positive upper end of flabellum body.
Preferably, the wheel disc and the fan blade body are manufactured by a high-pressure die-casting aluminum process, a high-pressure injection molding process or a stamping process, and the number of the connecting grooves and the fan blade body is 3, 4, 5, 6, 7, 8, 9, and the like according to actual use requirements.
Preferably, the fan blade body is designed with a large chord-width ratio, the fan blade body is designed with a large hub ratio, the hub ratio is between 0.25 and 0.75 and is preferably 0.31, and the front edge of the fan blade body is designed with bionics and concave-convex change of the front edge.
Preferably, the axle loading groove has been seted up to the inner chamber of rim plate, the inner chamber swing joint in axle loading groove has the moment of torsion dish, the inner chamber fixedly connected with of moment of torsion dish connects the loop bar, the front of rim plate is provided with the strengthening rib, the inner chamber fixed sleeve in joint groove has anti-skidding cover, the fixed surface of connecting the loop bar has cup jointed the bearing body, the fixed surface of bearing body cup joints in the inner chamber in axle loading groove.
Compared with the prior art, the utility model has the following beneficial effects:
1. this split type low noise high pressure fan flabellum through the cooperation work of mechanism of making an uproar, stop mechanism and coupling mechanism falls, has solved current equipment in the in-service use, can not satisfy high pressure, high energy efficiency, low noise's problem.
2. This split type low noise high pressure fan flabellum is through the inner chamber of going into the spacing groove with the surface card of stopper to realize spacing to the gasket, avoid the gasket to appear rotating the phenomenon of skew in the use, through the inner chamber of going into the location mouth with the surface card of location strip, thereby it is spacing to the flabellum body, thereby fix the angle of flabellum body, and the design of a plurality of location strips, can adjust the angle of flabellum body, it is spacing through the inner chamber card of going into the joint piece with the inner chamber card of joint groove, avoid the flabellum body to appear being got rid of the phenomenon of taking off in rotatory in-process, the security and the stability of this device are improved.
3. The split low-noise high-pressure fan blade can be arranged at the suction surface of the fan blade in a sharp angle mode through the arrangement of the noise reduction saw tooth grooves, and is arranged at the pressure surface of the fan blade in a large chamfer mode, so that airflow flowing through the tail edge of the fan blade is scattered into small vortex by the saw teeth, the vortex is led to the most tip of the saw teeth to achieve the purpose of noise reduction, the cross section area of the annular channel of the fan blade body can be reduced through the design of the large hub ratio of the fan blade body, the airflow speed is improved, the rotating speed of the fan can be reduced under the condition of the same advancing ratio, the running noise of the fan is reduced, the pneumatic efficiency and the acting capability of the device are improved, the fan blade body has the high-pressure resistant and impact resistant performance through the design of the large chord of the fan blade body, the number and the weight of the fan blade body are reduced under the same blade consistency, and the working performance of the device is further improved, the bending design of the fan blade body is adopted to obviously improve aerodynamic performance, expand stable working condition range and improve blade wake condition so as to effectively reduce noise, the fan blade body is preferably adopted to be in forward-sweep design, so that leakage loss of blade tip gaps is reduced, leakage of blade tip airflow is further prevented through arrangement of small fan wings, the front edge of the fan blade body is in bionics, the front edge is in concave-convex change design so as to improve lift force of the blade, the front edge is in concave-convex design so as to effectively delay separation of a flow field boundary layer, reduce acoustic energy, be another means for reducing noise, increase friction force of an inner cavity of a clamping groove through arrangement of an anti-skid cover, thereby avoiding rotation phenomenon of a noise reduction mechanism in the use process, reducing surface abrasion of a connecting sleeve rod through arrangement of the bearing body and avoiding fracture phenomenon of the connecting sleeve rod in the use process, the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic diagram of an overall front side view structure provided by an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of an integral hub provided in an embodiment of the present utility model;
FIG. 3 is a schematic side view of a noise reduction mechanism according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a bottom view of a stop mechanism according to an embodiment of the present utility model;
fig. 5 is a schematic side view of a hub cavity according to an embodiment of the present utility model.
The figure indicates: 1. a wheel disc; 2. a noise reduction mechanism; 201. a fan blade body; 202. noise reduction and tooth slot sawing; 203. a winglet; 204. the connecting support is connected; 205. a clamping groove; 206. a positioning strip; 3. a stop mechanism; 301. a gasket; 302. a positioning groove; 303. a positioning port; 304. a limiting block; 4. a connecting mechanism; 401. a connecting groove; 402. a clamping block; 403. a limit groove; 5. a shaft mounting groove; 6. a torque plate; 7. connecting a loop bar; 8. reinforcing ribs; 9. an anti-skid sleeve; 10. a bearing body.
Detailed Description
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
The structure of the present utility model will be described in detail with reference to the accompanying drawings.
Examples:
as shown in fig. 1 to 5, the split low-noise high-pressure fan blade provided by the utility model comprises a wheel disc 1, wherein a plurality of connecting mechanisms 4 are arranged on the outer side of the wheel disc 1, each connecting mechanism 4 comprises a connecting groove 401, a clamping block 402 and a limiting groove 403, a stop mechanism 3 is arranged in an inner cavity of each connecting groove 401, each stop mechanism 3 comprises a gasket 301, a positioning groove 302, a positioning opening 303 and a limiting block 304, a plurality of noise reduction mechanisms 2 are arranged on the outer side of the wheel disc 1 corresponding to the connecting mechanisms 4, and each noise reduction mechanism 2 comprises a fan blade body 201, a noise reduction saw tooth groove 202, a small fan wing 203, a connecting support 204, a clamping groove 205 and a positioning strip 206.
Referring to fig. 1, 3, 4 and 5, the connecting groove 401 is formed in the outer side of the wheel disc 1, the outer side of the clamping block 402 is fixedly connected to the inner cavity of the connecting groove 401, the limiting groove 403 is formed in the bottom end of the inner cavity of the connecting groove 401, the surface of the gasket 301 is movably connected to the inner cavity of the connecting groove 401, the locating groove 302 and the locating opening 303 are formed in the outer side of the gasket 301, the top end of the limiting block 304 is fixedly connected to the bottom end of the gasket 301, the surface of the limiting block 304 is movably connected to the inner cavity of the limiting groove 403, the surface of the locating strip 206 is movably clamped to the inner cavity of the locating opening 303, the inner cavity of the connecting support 204 is fixedly connected to the surface of the connecting support 204, the inner cavity of the clamping groove 205 is movably clamped to the surface of the clamping block 402, the bottom end of the fan blade body 201 is fixedly connected to the top end of the connecting support 204, the noise reducing tooth groove 202 is formed in the left side of the fan blade body 201, and the back of the fan blade 203 is fixedly connected to the upper end of the front surface of the fan blade body 201.
The scheme is adopted: through the inner chamber of spacing groove 403 is gone into to the surface card with stopper 304 to realize spacing to gasket 301, avoid gasket 301 to appear rotating the skew phenomenon in the use, through the inner chamber of locating slot 303 is gone into to the surface card with location strip 206, thereby spacing to flabellum body 201, thereby fix the angle of flabellum body 201, and the design of a plurality of location strips 206 can adjust the angle of flabellum body 201, it is spacing through going into the inner chamber card with joint groove 205 into the inner chamber of joint piece 402, avoid flabellum body 201 to appear by the phenomenon of getting rid of in the rotatory in-process, improve the security and the stability of this device.
Referring to fig. 1, fig. 2, fig. 3 and fig. 5, the wheel disc 1 and the fan blade body 201 are respectively manufactured by adopting a high-pressure die-casting aluminum process, a high-pressure injection molding process or a stamping process, and the like, the number of the connecting grooves 401 and the fan blade body 201 is 3, 4, 5, 6, 7, 8, 9, and the like according to actual use requirements, the fan blade body 201 adopts a large-width-chord ratio design, the fan blade body 201 adopts a large hub ratio, the hub ratio is between 0.25 and 0.75 and is preferably 0.31, the front edge of the fan blade body 201 adopts bionics, the front edge concave-convex change design, a shaft mounting groove 5 is formed in the inner cavity of the wheel disc 1, a torque disc 6 is movably connected in the inner cavity of the torque disc 6, a connecting sleeve rod 7 is fixedly connected in the front face of the wheel disc 1, a reinforcing rib 8 is fixedly sleeved in the inner cavity of the clamping groove 205, an anti-slip sleeve 9 is fixedly sleeved on the surface of the connecting sleeve rod 7, a bearing body 10 is fixedly sleeved on the surface of the bearing body 10, and the surface of the bearing body 10 is fixedly sleeved in the inner cavity of the shaft mounting groove 5.
The scheme is adopted: through the arrangement of the noise reduction saw tooth grooves 202, the suction surface of the fan blade can be arranged in a sharp angle, the pressure surface of the fan blade is arranged in a large chamfer angle, so that the airflow flowing through the tail edge of the fan blade is scattered into small vortex by the saw teeth, the vortex is led to the most tip of the saw teeth for eliminating to achieve the purpose of noise reduction, through the design of the large hub ratio of the fan blade body 201, the cross section area of the annular channel of the fan blade body 201 can be reduced, the airflow speed is improved, the rotating speed of the fan can be reduced under the condition of the same advancing ratio, thereby reducing the running noise of the fan, improving the pneumatic efficiency and the acting capability of the device, through the design of the large wide chord of the fan blade body 201, the fan blade body 201 has the high pressure resistant and impact resistant performance, the number and the weight of the fan blade body 201 are reduced under the same blade consistency, the working performance of the device is further improved through the sweep design of the fan blade body 201, the aerodynamic performance is remarkably improved, the stable working condition range is enlarged, the blade wake condition is improved, the noise is effectively reduced, the fan blade body 201 preferably adopts a forward-swept design, the leakage loss of blade tip gaps is reduced, the leakage of blade tip airflow is further prevented through the arrangement of the small fan wings 203, the bionics is adopted through the front edge of the fan blade body 201, the lift force of the blade can be improved through the design of concave-convex change of the front edge, the separation of a flow field boundary layer can be effectively delayed through the design of concave-convex change of the front edge, the acoustic energy generation is reduced, the noise is reduced, the friction force of the inner cavity of the clamping groove 205 can be increased through the arrangement of the anti-skid sleeve 9, the rotation phenomenon of the noise reduction mechanism 2 in the use process is avoided, the surface abrasion of the connecting sleeve rod 7 is reduced through the arrangement of the bearing body 10, the breakage phenomenon in the use process is avoided, the service life of the device is prolonged.
When the device is used, the device is installed to a designated position through the inner cavity of the through-connection sleeve rod 7 by using the bolts, the material rigidity of the wheel disc 1 is increased through the reinforcing ribs 8, the hardness of the device is improved, the spacer 301 is limited by clamping the surface of the limiting block 304 into the inner cavity of the limiting groove 403, the fan blade body 201 is limited by clamping the surface of the positioning strip 206 into the inner cavity of the positioning port 303, the angle of the fan blade body 201 is fixed, the angle of the fan blade body 201 can be adjusted by designing a plurality of positioning strips 206, the inner cavity of the clamping groove 205 is clamped into the inner cavity of the clamping block 402 to limit, and the structure can realize the functions according to the use requirements, the working angle of the fan blade can be adjusted, different motor powers are matched, the fan blade can be arranged at a sharp angle on the suction surface of the fan blade through the arrangement of the noise reduction saw tooth grooves 202, the fan blade can be arranged at a large chamfer angle on the pressure surface of the fan blade, so that air flow flowing through the tail edge of the fan blade is scattered into small vortex by the saw teeth, the vortex is led to the most tip of the saw teeth for elimination, the cross section area of an annular channel can be reduced through the design of the large hub ratio of the fan blade body 201, the air flow speed is improved, the aerodynamic efficiency and the working capacity of the fan blade are improved, the fan blade body 201 is designed to have high-pressure-resistant and impact-resistant performances through the large chord of the fan blade body 201, and the number and the weight of the fan blade body 201 are reduced under the same thickness of the fan blade.
To sum up: this split type low noise high pressure fan flabellum through the cooperation work of mechanism 2 of making an uproar, stop mechanism 3 and coupling mechanism 4 falls, has solved current equipment in the in-service use, can not satisfy high pressure, high energy efficiency, low noise's problem.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a split type low noise high pressure fan flabellum, includes rim plate (1), its characterized in that, the outside of rim plate (1) is provided with coupling mechanism (4), coupling mechanism (4) are including spread groove (401), joint piece (402) and spacing groove (403), spread groove (401) are seted up in the outside of rim plate (1), the outside fixed connection of joint piece (402) is in the inner chamber of spread groove (401), spacing groove (403) are seted up in the bottom of spread groove (401) inner chamber; the inner cavity of the connecting groove (401) is provided with a stop mechanism (3), and the outer side of the wheel disc (1) is provided with a noise reduction mechanism (2) corresponding to the connecting mechanism (4).
2. The split type low-noise high-pressure fan blade according to claim 1, wherein the stop mechanism (3) comprises a gasket (301), a positioning groove (302), a positioning opening (303) and a limiting block (304), the surface of the gasket (301) is movably connected to the inner cavity of the connecting groove (401), the positioning groove (302) and the positioning opening (303) are both arranged on the outer side of the gasket (301), the top end of the limiting block (304) is fixedly connected to the bottom end of the gasket (301), and the surface of the limiting block (304) is movably connected to the inner cavity of the limiting groove (403).
3. The split type low-noise high-pressure fan blade according to claim 2, wherein the noise reduction mechanism (2) comprises a fan blade body (201), a noise reduction saw tooth groove (202), a small fan wing (203), a connecting support (204), a clamping groove (205) and a positioning strip (206), the surface of the positioning strip (206) is movably clamped in an inner cavity of a positioning opening (303), the inner cavity of the connecting support (204) is fixedly connected to the surface of the positioning strip (206), the bottom end of the connecting support (204) is movably connected to the top end of a gasket (301), the clamping groove (205) is formed in the surface of the connecting support (204), the inner cavity of the clamping groove (205) is movably clamped on the surface of a clamping block (402), the bottom end of the fan blade body (201) is fixedly connected to the top end of the connecting support (204), the surface of the small fan wing (203) is formed in the left side of the fan blade body (201), and the back surface of the small fan wing (203) is fixedly connected to the upper end of the front surface of the fan blade body (201).
4. A split low noise high pressure fan blade according to claim 3, wherein the number of said connecting grooves (401) and said blade body (201) is set to 3-9 according to the actual use requirement.
5. The split type low-noise high-pressure fan blade according to claim 3, wherein the hub ratio of the blade body (201) is 0.25-0.75, and the front edge of the blade body (201) adopts bionics and a front edge concave-convex change design.
6. The split type low-noise high-pressure fan blade according to claim 3, wherein the inner cavity of the wheel disc (1) is provided with a shaft mounting groove (5), the inner cavity of the shaft mounting groove (5) is movably connected with a torque disc (6), the inner cavity of the torque disc (6) is fixedly connected with a connecting sleeve rod (7), the front surface of the wheel disc (1) is provided with a reinforcing rib (8), the inner cavity of the clamping groove (205) is fixedly sleeved with an anti-slip sleeve (9), the surface of the connecting sleeve rod (7) is fixedly sleeved with a bearing body (10), and the surface of the bearing body (10) is fixedly sleeved with the inner cavity of the shaft mounting groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322318971.8U CN219733729U (en) | 2023-08-29 | 2023-08-29 | Split type low-noise high-pressure fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322318971.8U CN219733729U (en) | 2023-08-29 | 2023-08-29 | Split type low-noise high-pressure fan blade |
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| Publication Number | Publication Date |
|---|---|
| CN219733729U true CN219733729U (en) | 2023-09-22 |
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ID=88061993
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322318971.8U Active CN219733729U (en) | 2023-08-29 | 2023-08-29 | Split type low-noise high-pressure fan blade |
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| Country | Link |
|---|---|
| CN (1) | CN219733729U (en) |
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2023
- 2023-08-29 CN CN202322318971.8U patent/CN219733729U/en active Active
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