CN215927894U

CN215927894U - Impeller for centrifugal fan

Info

Publication number: CN215927894U
Application number: CN202120181708.7U
Authority: CN
Inventors: 梁国雄
Original assignee: Guangzhou Shengnan Ventilation Equipment Co ltd
Current assignee: Guangzhou Shengnan Ventilation Equipment Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-03-01
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses an impeller for a centrifugal fan, which comprises an installation disc, wherein a positioning disc is arranged on the left side of the installation disc, a blade body is arranged on the left side of the installation disc, T-shaped plates are fixedly connected to both sides of the blade body, T-shaped grooves are formed in the left side of the installation disc and the right side of the positioning disc, the T-shaped plates are connected inside the T-shaped grooves in a sliding mode, a through hole is formed in the left side of the blade body, and a T-shaped rod is arranged on the left side of the positioning disc. According to the utility model, the T-shaped plate is used for limiting the blade body through the T-shaped groove, and the T-shaped rod is used for fixing the position of the blade body through the positioning mechanism and the through hole, so that the blade is convenient to disassemble and assemble, the problem that the blade of the conventional impeller cannot be disassembled because the blade is fixed by welding, and is inconvenient for a user to replace after a single blade is worn is solved, and the practicability of the impeller is improved to a certain extent.

Description

Impeller for centrifugal fan

Technical Field

The utility model relates to the technical field of centrifugal fans, in particular to an impeller for a centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings.

The impeller is an important component of the centrifugal fan, but the blades of the existing impeller are fixed by welding and cannot be detached, so that after a single blade is worn, the impeller is not convenient for a user to replace, and the practicability of the impeller is reduced to a certain degree.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the utility model aims to provide an impeller for a centrifugal fan, which has the advantage of convenience in replacing blades, and solves the problem that the blades of the existing impeller are fixed by welding and cannot be detached, so that a user cannot replace the blades conveniently after the single blade is worn.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an impeller for centrifugal fan, includes the mounting disc, the left side of mounting disc is provided with the positioning disk, the left side of mounting disc is provided with the blade body, the equal fixedly connected with T-shaped plate in both sides of blade body, the T-shaped groove has been seted up on the left side of mounting disc and the right side of positioning disk, T-shaped plate sliding connection is in the inside in T-shaped groove, the through-hole has been seted up in the left side of blade body, the left side of positioning disk is provided with the T shape pole, the right-hand member of T shape pole runs through to the right side of mounting disc, the blade body slides through the through-hole and cup joints the surface at the T shape pole, the right side on T shape pole surface is provided with positioning mechanism.

Preferably, the top and the bottom of the T-shaped plate are both arc-shaped, and the width of the T-shaped plate is half of the width of the blade body.

Preferably, a triangular circular sleeve is fixedly connected to the left side of the surface of the T-shaped rod, and the right side of the triangular circular sleeve is in contact with the surface of the positioning disc.

Preferably, the positioning mechanism comprises a first gear sleeve, a second gear sleeve, a spring and a limiting sleeve, the first gear sleeve is in threaded connection with the right side of the surface of the T-shaped rod, the second gear sleeve is arranged on the surface of the first gear sleeve, the right side of the second gear sleeve is meshed with the first gear sleeve, the spring is fixedly connected to the left side of the second gear sleeve, the limiting sleeve is in sliding sleeve connection with the surface of the second gear sleeve, and the left end of the spring and the left end of the limiting sleeve are both fixedly connected to the surface of the mounting disc.

Preferably, the pull plates are fixedly connected to the left sides of the top and the bottom of the second gear sleeve, the top and the bottom of the limiting sleeve are provided with openings, and one end, far away from the second gear sleeve, of each pull plate penetrates through the opening and extends to the outer side of the limiting sleeve.

Preferably, the left side of the first gear sleeve is in contact with the surface of the mounting disc, and the shape of the surface of the first gear sleeve is T-shaped.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the T-shaped plate is used for limiting the blade body through the T-shaped groove, and the T-shaped rod is used for fixing the position of the blade body through the positioning mechanism and the through hole, so that the blade is convenient to disassemble and assemble, the problem that the blade of the conventional impeller cannot be disassembled because the blade is fixed by welding, and is inconvenient for a user to replace after a single blade is worn is solved, and the practicability of the impeller is improved to a certain extent.

2. According to the utility model, the width of the T-shaped plate is half of the width of the blade body, so that the contact area between the T-shaped plate and the mounting disc can be increased, and the stability of the blade body is improved.

3. According to the utility model, the triangular round sleeve is arranged, so that the contact area between the T-shaped rod and the positioning disc can be increased, and the support strength of the T-shaped rod is improved.

4. According to the utility model, the gear sleeve II can be supported by arranging the limiting sleeve, so that the stability of the gear sleeve II is improved.

5. According to the utility model, the pulling plate and the opening are arranged, so that a user can pull the second gear sleeve conveniently, and the phenomenon that the second gear sleeve is separated from the limiting sleeve is avoided.

6. According to the utility model, the shape of one surface of the gear sleeve is set to be T-shaped, so that the gear sleeve can compress and position the T-shaped rod, and the stability of the T-shaped rod is improved.

Drawings

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

FIG. 2 is a left side sectional view of the puck structure of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

FIG. 4 is an enlarged view of the structure at B in FIG. 1;

fig. 5 is a perspective view of the stop collar of the present invention.

In the figure: 1. mounting a disc; 2. positioning a plate; 3. a blade body; 4. a T-shaped plate; 5. a T-shaped slot; 6. a through hole; 7. a T-shaped rod; 8. a positioning mechanism; 81. sleeving a first gear; 82. a second gear sleeve; 83. a spring; 84. a limiting sleeve; 9. a triangular round sleeve; 10. pulling a plate; 11. and (4) opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the impeller for the centrifugal fan provided by the utility model comprises an installation disc 1, a positioning disc 2 is arranged on the left side of the installation disc 1, a blade body 3 is arranged on the left side of the installation disc 1, T-shaped plates 4 are fixedly connected to both sides of the blade body 3, T-shaped grooves 5 are formed in the left side of the installation disc 1 and the right side of the positioning disc 2, the T-shaped plates 4 are slidably connected inside the T-shaped grooves 5, through holes 6 are formed in the left side of the blade body 3, T-shaped rods 7 are arranged on the left side of the positioning disc 2, the right ends of the T-shaped rods 7 penetrate through the right side of the installation disc 1, the blade body 3 is slidably sleeved on the surfaces of the T-shaped rods 7 through the through holes 6, and positioning mechanisms 8 are arranged on the right sides of the surfaces of the T-shaped rods 7.

Referring to fig. 3, the top and bottom of the T-shaped plate 4 are both arc-shaped, and the width of the T-shaped plate 4 is half of the width of the blade body 3.

As a technical optimization scheme of the utility model, the width of the T-shaped plate 4 is set to be half of the width of the blade body 3, so that the contact area between the T-shaped plate 4 and the mounting disc 1 can be increased, and the stability of the blade body 3 is improved.

Referring to fig. 3, a triangular circular sleeve 9 is fixedly connected to the left side of the surface of the T-shaped rod 7, and the right side of the triangular circular sleeve 9 is in contact with the surface of the positioning plate 2.

As a technical optimization scheme of the utility model, the triangular round sleeve 9 is arranged, so that the contact area between the T-shaped rod 7 and the positioning disk 2 can be increased, and the supporting strength of the T-shaped rod 7 is improved.

Referring to fig. 4, the positioning mechanism 8 includes a first toothed sleeve 81, a second toothed sleeve 82, a spring 83 and a limiting sleeve 84, the first toothed sleeve 81 is in threaded connection with the right side of the surface of the T-shaped rod 7, the second toothed sleeve 82 is sleeved on the surface of the first toothed sleeve 81, the right side of the second toothed sleeve 82 is meshed with the first toothed sleeve 81, the spring 83 is fixedly connected to the left side of the second toothed sleeve 82, the limiting sleeve 84 is in sliding sleeved connection with the surface of the second toothed sleeve 82, and the left end of the spring 83 and the left end of the limiting sleeve 84 are both fixedly connected to the surface of the mounting plate 1.

As a technical optimization scheme of the utility model, the second gear sleeve 82 can be supported by arranging the limiting sleeve 84, so that the stability of the second gear sleeve 82 is improved.

Referring to fig. 4, pulling plates 10 are fixedly connected to the top and the bottom of the second gear sleeve 82 on the left side, openings 11 are formed in the top and the bottom of the limiting sleeve 84, and one end, far away from the second gear sleeve 82, of each pulling plate 10 penetrates through the opening 11 and extends to the outer side of the limiting sleeve 84.

As a technical optimization scheme of the utility model, the pulling plate 10 and the opening 11 are arranged, so that a user can pull the second gear sleeve 82 conveniently, and the phenomenon that the second gear sleeve 82 is separated from the limiting sleeve 84 is avoided.

Referring to fig. 4, the left side of the first gear sleeve 81 is in contact with the surface of the mounting plate 1, and the surface of the first gear sleeve 81 is T-shaped.

As a technical optimization scheme of the utility model, the surface of the first gear sleeve 81 is set to be T-shaped, so that the first gear sleeve 81 can compress and position the T-shaped rod 7, and the stability of the T-shaped rod 7 is improved.

The working principle and the using process of the utility model are as follows: when the mounting tool is used, a user firstly pushes the pulling plate 10 leftwards, the pulling plate 10 drives the first toothed sleeve 81 to be separated from the second toothed sleeve 82, meanwhile, the first toothed sleeve 81 can compress the spring 83, then the second toothed sleeve 82 is rotated through a tool, the second toothed sleeve 82 is separated from the T-shaped rod 7, then the T-shaped rod 7 is pulled leftwards, the T-shaped rod 7 is separated from the positioning disc 2, and finally the blade body 3 is pulled, so that the dismounting can be completed, when the mounting tool needs to be mounted, firstly, the T-shaped plate 4 is clamped into the T-shaped groove 5 to limit the blade body 3, then, the right end of the T-shaped rod 7 penetrates through the through hole 6 and extends to the left side of the mounting disc 1, at the moment, the second toothed sleeve 82 can be rotated, the second toothed sleeve 82 is connected to the surface of the T-shaped rod 7 through threads to press the positioning disc 2 and the mounting disc 1, the pulling plate 10 is loosened, so that the spring 83 pushes the first toothed sleeve 81 to be clamped into the inner part of the second toothed sleeve 82 through elasticity to limit the second toothed sleeve 82, and the second toothed sleeve 82 is prevented from rotating, thereby achieving the effect of convenient disassembly.

In summary, the following steps: this impeller for centrifugal fan carries on spacingly through T-shaped groove 5 by T-shaped plate 4 to blade body 3, carries out the rigidity to blade body 3 through positioning mechanism 8 and through-hole 6 by T-shaped pole 7 again, easy dismounting to possess the advantage of being convenient for change the blade, the blade of having solved current impeller is welded fastening, can' T dismantle, thereby after single blade wearing and tearing, the inconvenient use person carries out the problem of changing, the improvement of certain degree the practicality of impeller.

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.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an impeller for centrifugal fan, includes mounting disc (1), its characterized in that: the left side of mounting disc (1) is provided with positioning disc (2), the left side of mounting disc (1) is provided with blade body (3), the equal fixedly connected with T shaped plate (4) in both sides of blade body (3), T-shaped groove (5) have all been seted up on the left side of mounting disc (1) and the right side of positioning disc (2), T shaped plate (4) sliding connection is in the inside of T-shaped groove (5), through-hole (6) have been seted up in the left side of blade body (3), the left side of positioning disc (2) is provided with T shape pole (7), the right-hand member of T shape pole (7) runs through to the right side of mounting disc (1), the surface at T shape pole (7) is cup jointed in the slip of through-hole (6) in blade body (3), the right side on T shape pole (7) surface is provided with positioning mechanism (8).

2. The impeller for the centrifugal fan according to claim 1, wherein: the shape of the top and the bottom of the T-shaped plate (4) are both arc-shaped, and the width of the T-shaped plate (4) is half of that of the blade body (3).

3. The impeller for the centrifugal fan according to claim 1, wherein: the left side fixedly connected with triangle cover (9) on T shape pole (7) surface, the right side of triangle cover (9) and the surface contact of positioning disk (2).

4. The impeller for the centrifugal fan according to claim 1, wherein: positioning mechanism (8) are including tooth cover one (81), tooth cover two (82), spring (83) and stop collar (84), tooth cover one (81) threaded connection is on the right side on T shape pole (7) surface, tooth cover two (82) cover is established on the surface of tooth cover one (81), the right side and the tooth cover one (81) meshing of tooth cover two (82), spring (83) fixed connection is in the left side of tooth cover two (82), stop collar (84) slip cup joint the surface at tooth cover two (82), the equal fixed connection in the surface of mounting disc (1) of left end of spring (83) and the left end of stop collar (84).

5. The impeller for the centrifugal fan according to claim 4, wherein: equal fixedly connected with arm-tie (10) in the left side of tooth cover two (82) top and bottom, opening (11) have all been seted up to the top and the bottom of stop collar (84), the one end that tooth cover two (82) were kept away from in arm-tie (10) passes opening (11) and extends to the outside of stop collar (84).

6. The impeller for the centrifugal fan according to claim 4, wherein: the left side of the first gear sleeve (81) is in contact with the surface of the mounting disc (1), and the surface of the first gear sleeve (81) is T-shaped.