CN219366384U - Angle-adjustable centrifugal impeller - Google Patents

Abstract

The utility model relates to the field of centrifugal fans, in particular to an angle-adjustable centrifugal impeller, which comprises a connecting box, wherein a transmission shaft is arranged at the bottom end of the connecting box, a driving gear is movably arranged at the top end inside the connecting box through a rotation shaft, a plurality of blades are uniformly and movably arranged outside the connecting box through bearings, and connecting rods are fixedly arranged at one ends of the blades inside the connecting box. According to the centrifugal impeller, the driven gears on one ends of the plurality of blades are matched with the driving gear, so that the synchronous angle adjustment of the plurality of blades on the centrifugal impeller can be realized, the operation is simple and convenient, the convenience of the centrifugal impeller in use is ensured only by screwing the inserting rod, the inserting rod and the connecting frame for adjusting operation are of a separated structure, and the connecting frame is arranged in the accommodating groove, so that after the adjustment work is finished, the flatness of the outer surface of the centrifugal impeller can be ensured, and the protruding inserting rod is prevented from influencing the normal use of the centrifugal impeller.

Description

Angle-adjustable centrifugal impeller

Technical Field

The utility model relates to the technical field of centrifugal fans, in particular to an angle-adjustable centrifugal impeller.

Background

The blades of the conventional common fan are fixed, and the angles of the blades are adjusted according to the maximum air quantity, the air pressure and the like required by use during production, so that the fans applied to different occasions need to select proper blades through complex calculation formulas to determine proper angles because the air quantity, the air pressure and the like are different.

In a fan impeller with adjustable blade angle, disclosed in the Chinese patent application, CN215521372U, the fan impeller has a simple structure, and when in use, the adjusting block is rotated by moving the adjusting rod, and the blade is driven to rotate by the rotation of the adjusting block, namely, the use angle of the blade is changed; the adjusting rod can be driven to move through the movable cover plate, the blades can be synchronously adjusted, the use angles of the blades are guaranteed to be consistent, and the adjusting is convenient and fast.

Disclosure of Invention

The utility model aims to provide an angle-adjustable centrifugal impeller so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an angularly adjustable centrifugal impeller, includes the connection box, the transmission shaft is installed to the connection box bottom, the inside top of connection box is provided with drive gear through the pivot activity, the connection box outside is provided with a plurality of blades through the even activity of bearing, the connection box is inside all to be fixed in the one end of a plurality of blades and is provided with the connecting rod, the driven gear is installed in the one end outside that the connection box was kept away from to the connecting rod, drive gear and a plurality of driven gear homoenergetic, the holding tank has been seted up to connection box upper end surface, the holding tank is inside to be provided with the connecting frame in the pivot one end at drive gear place, the inside plug-in rod that is provided with of connecting frame.

Preferably, a placing groove is formed in the connecting frame and in the outer surface of one end of the plugging rod;

preferably, a spring is arranged at one end inside the placing groove, and a trapezoid clamping block is arranged at one end, far away from the inserting connection rod, of the spring;

preferably, a clamping groove is formed in one side of the inside of the connecting frame, one end of the trapezoid clamping block is positioned in the clamping groove, a push rod is movably arranged at one end of the inside of the clamping groove through a mounting hole, and one end of the push rod is abutted to the trapezoid clamping block;

preferably, a first limiting block is arranged outside one end, close to the spring, of the trapezoid clamping block;

preferably, the second limiting blocks are fixedly arranged at the two ends of the push rod.

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

1. according to the centrifugal impeller, the driven gears on one ends of the plurality of blades are matched with the driving gear, so that the synchronous angle adjustment of the plurality of blades on the centrifugal impeller can be realized, the operation is simple and convenient, the convenience of the centrifugal impeller in use is ensured only by screwing the inserting rod, the inserting rod and the connecting frame for adjusting operation are of a separated structure, and the connecting frame is arranged in the accommodating groove, so that after the adjustment work is finished, the flatness of the outer surface of the centrifugal impeller can be ensured, and the protruding inserting rod is prevented from influencing the normal use of the centrifugal impeller.

2. According to the utility model, the connecting effect of the inserting rod and the connecting frame can be ensured through the matched use of the springs, the trapezoidal clamping blocks and the clamping grooves in the placing grooves, so that the normal operation of adjusting work is ensured, and the inserting rod is required to be extracted, the trapezoidal clamping blocks and the clamping blocks can be rapidly separated through the matched use of the push rod, so that the inserting rod can be conveniently extracted, and further, the inserting rod and the connecting frame have good use convenience in use.

Drawings

FIG. 1 is a schematic overall elevational view of the present utility model;

FIG. 2 is a schematic cross-sectional view of a junction box of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

fig. 4 is an enlarged schematic view of the present utility model at a in fig. 1.

In the figure: 1. a connection box; 2. a transmission shaft; 3. a drive gear; 4. a blade; 5. a connecting rod; 6. a driven gear; 7. a receiving groove; 8. a connection frame; 9. inserting a connecting rod; 10. a spring; 11. a trapezoidal clamping block; 12. a clamping groove; 13. a push rod; 14. a first limiting block; 15. a second limiting block; 16. and (5) placing a groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the apparatus or elements in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-4, the present utility model provides a technical solution:

the utility model provides an angularly adjustable centrifugal impeller, including connection box 1, transmission shaft 2 is installed to connection box 1 bottom, the inside top of connection box 1 is provided with driving gear 3 through the pivot activity, connection box 1 outside is provided with a plurality of blades 4 through the even activity of bearing, connection box 1 is inside all to be fixed in the one end of a plurality of blades 4 is provided with connecting rod 5, driven gear 6 is installed in the one end outside that connection box 1 was kept away from to connecting rod 5, driving gear 3 and a plurality of driven gear 6 homophase engagement, holding tank 7 has been seted up on connection box 1 upper end surface, the inside pivot one end at driving gear 3 place of holding tank 7 is provided with connecting frame 8, connecting frame 8 inside is provided with peg graft pole 9.

According to the scheme, the plurality of blades 4 on the centrifugal impeller can be synchronously and angularly adjusted through the use of the driven gear 6 on one end of the plurality of blades 4 matched with the driving gear 3, the operation is simple and convenient, the operation can be completed only by screwing the plugging rod 9, and the convenience of the centrifugal impeller in use is ensured;

in this embodiment, preferably, a placement groove 16 is formed in the connecting frame 8 at the outer surface of one end of the plugging rod 9;

through the above scheme, the placement groove 16 is used for accommodating the mounting spring 10 and the trapezoid clamping block 11;

in this embodiment, preferably, a spring 10 is installed at one end inside the placement groove 16, and a trapezoidal clamping block 11 is arranged at one end of the spring 10 away from the insertion rod 9;

through the scheme, the using effect of the trapezoid clamping block 11 is ensured through the acting force of the spring 10;

in this embodiment, preferably, a clamping groove 12 is formed on one side of the inside of the connection frame 8, one end of the trapezoidal clamping block 11 is located inside the clamping groove 12, one end of the inside of the clamping groove 12 is movably provided with a push rod 13 through a mounting hole, and one end of the push rod 13 is abutted against the trapezoidal clamping block 11;

through the scheme, the connecting effect of the plugging rod 9 and the connecting frame 8 can be guaranteed through the matched use of the springs 10, the trapezoidal clamping blocks 11 and the clamping grooves 12 in the placing grooves 16, so that the normal operation of adjusting work is guaranteed, the plugging rod 9 is required to be pulled out, the trapezoidal clamping blocks 11 and the clamping blocks can be quickly separated through the matched use of the push rods 13, the plugging rod 9 can be conveniently pulled out, and further, the plugging rod 9 and the connecting frame 8 have good use convenience in use;

in this embodiment, preferably, a first limiting block 14 is disposed on the outer side of one end of the trapezoidal clamping block 11, which is close to the spring 10;

through the above scheme, the first limiting block 14 is used for providing a limiting effect for the trapezoidal clamping block 11, so that the trapezoidal clamping block 11 is prevented from being separated from the placing groove 16 under the acting force of the spring 10;

in this embodiment, preferably, the two ends of the push rod 13 are fixedly provided with second limiting blocks 15;

through above-mentioned scheme, second stopper 15 is used for providing spacing effect to push rod 13, avoids push rod 13 to break away from the mounting hole of being connected with connecting frame 8.

When the centrifugal impeller with the adjustable angle is used, connection with a motor is completed through the transmission shaft 2, when the angle adjustment work is performed, the initial states of the blades 4 assembled on the connecting box 1 are required to be consistent, then the worker can rotate the connecting frame 8 through screwing the inserting rod 9 to drive the driving gear 3 which is arranged in the connecting box 1 and is in the same rotation shaft, the driven gear 6 on the connecting rod 5 at one end of each blade 4 is meshed with the driving gear 3, so that the driven gears 6 can synchronously rotate to drive the corresponding blades 4 to perform synchronous adjustment along with rotation of the driving gear 3, the angle adjustment work of the blades 4 is completed, after the adjustment is completed, the inserting rod 9 can be pulled out, the smoothness of the outer surface of the centrifugal impeller can be guaranteed due to the fact that the connecting frame 8 is arranged in the accommodating groove 7, the protruding inserting rod 9 is prevented from affecting normal use of the centrifugal impeller, when the adjustment work is performed, the connecting effect of the inserting rod 9 and the connecting frame 8 can be guaranteed through connection of the clamping groove 12 and the trapezoid clamping block 11, the adjusting work is guaranteed, and when the inserting rod 9 needs to be pulled out, the worker can press the inserting rod 9 and the inserting rod 13 to have good connection performance with the trapezoid clamping block 13, and the inserting rod 9 can be conveniently pulled out from the inserting rod 9.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an angularly adjustable centrifugal impeller, includes connecting box (1), its characterized in that: the novel connecting box comprises a connecting box body and is characterized in that a transmission shaft (2) is arranged at the bottom end of the connecting box body (1), a driving gear (3) is movably arranged at the top end of the inner portion of the connecting box body (1) through a rotating shaft, a plurality of blades (4) are uniformly and movably arranged outside the connecting box body (1) through bearings, connecting rods (5) are fixedly arranged at one ends of the blades (4) inside the connecting box body, driven gears (6) are arranged outside one ends of the connecting rods (5) away from the connecting box body (1), the driving gear (3) is in homogeneous phase engagement with the driven gears (6), a containing groove (7) is formed in the surface of the upper end of the connecting box body (1), a connecting frame (8) is arranged at one end of the rotating shaft where the driving gear (3) is located, and a plugging rod (9) is arranged inside the connecting frame (8).

2. An angularly adjustable centrifugal impeller according to claim 1, wherein: a placing groove (16) is formed in the connecting frame (8) on the outer side surface of one end of the plug-in rod (9).

3. An angularly adjustable centrifugal impeller according to claim 2, wherein: a spring (10) is arranged at one end inside the placing groove (16), and a trapezoid clamping block (11) is arranged at one end, far away from the inserting connection rod (9), of the spring (10).

4. An angularly adjustable centrifugal impeller according to claim 3, characterized in that: clamping grooves (12) are formed in one side of the inside of the connecting frame (8), one end of each trapezoidal clamping block (11) is located inside each clamping groove (12), a push rod (13) is movably arranged at one end of the inside of each clamping groove (12) through a mounting hole, and one end of each push rod (13) is abutted to each trapezoidal clamping block (11).

5. An angularly adjustable centrifugal impeller according to claim 3, characterized in that: a first limiting block (14) is arranged on the outer side of one end, close to the spring (10), of the trapezoid clamping block (11).

6. An angularly adjustable centrifugal impeller according to claim 4, wherein: and second limiting blocks (15) are fixedly arranged at two ends of the push rod (13).