JP3145283U - Built-in swing mechanism with propeller fan structure - Google Patents

Abstract

An object of the present invention is to obtain a stable support state of spherical universal transmission in a built-in swing mechanism having a propeller fan structure.
A ball joint type bearing portion 30 is provided at a position corresponding to a front wall 11 of a main housing 10 and a drive motor 20 shaft 21. A crank interlocking mechanism 50 is provided between the rear side of the drive motor 20 and the rear wall 12 of the main housing 10. The ball joint type bearing portion 30 includes a ball mounting surface 31 and a through hole 32 formed on the front wall 11, and a spherical abutment seat 40 formed on the drive motor 20. In this configuration, 40 spherical abutting surfaces 41 abut on the ball mounting surface 31. The crank interlocking mechanism 50 includes a motor transmission device 51 and a transmission block 53 provided on the rear surface of the drive motor 20. The transmission block 53 has a second end rotatably fitted to the turning shaft portion 13 of the rear wall 12 of the main housing 10, and a first end fixed to the output shaft 52 of the motor transmission device 51.
[Selection] Figure 4

Description

  The present invention relates to a built-in swing mechanism having a propeller fan structure.

  The propeller fan of the present invention refers to a fan that produces a blowing effect due to the rotation of the propeller.

  Currently, there are generally two types of propeller fan structures available on the market from the angle of blown air control: swing type and outer frame rotary type. The propeller is rotating in the swing type operation. At the same time, the purpose of automatically changing the flow of the blown air is achieved by swinging the fan head back and forth.

  However, such a swing-type propeller fan repeatedly moves along the route at the same height when swinging, so the area to which the blown wind hits cannot be increased in the vertical direction. On the other hand, since the supporting point on which the swing type propeller fan swings is located near the rear side under the head part of the fan, when the head part of the fan is swinging, The outer frame of the propeller swings and moves in position with the above-mentioned swing support point as the center, so that, when used, the entire volume of the propeller fan increases and a larger space is required. , There is a drawback.

  In the outer frame rotating propeller fan, the fan housing is operated by the air guide frame design, and the flow of the blowout air changes according to the rotation of the air guide frame, however, In an outer frame rotating propeller fan, the air guide frame achieves an air guide effect with a plurality of obliquely placed plate pieces, and the inclined structure of the obliquely placed plate pieces simultaneously inhibits air flow to some extent. The air blowing effect of such a propeller fan is greatly reduced, and the user is dissatisfied with it, and the gap of the deep dent formed by the plurality of plate pieces is not easy for the user to clean. It becomes inconvenient.

  Since the current large industrial propeller fan structure requires a strong effect, the propeller part is usually made of a metal plate piece, and the outer frame has a stable landing stand structure. Some types of industrial propeller fans do not have the ability to swing skillfully to reduce stability, reduce the area where the blowing air strikes, reduce the practicality, and so Unknowingly, users have more opportunities to move the propeller fan, and in the meantime they are inadvertently damaged by the sharp propellers (which is more likely to occur with a working device), and then safety issues Will arise.

  Knowing the problems that existed in the above-described conventional propeller fan structure, it is the user's desire to develop a more ideal and practical original structure. It is also a goal and direction.

  In view of these, the inventor has many years of experience in the manufacture and development and design of related products, aiming at the above-mentioned goals, and designing and evaluating in detail, and can obtain a practical invention. That is why.

  An object of the present invention is to provide a built-in swing mechanism having a propeller fan structure that solves the above problems.

The present invention is a built-in swing mechanism that is provided inside the main casing 10 of the propeller fan B and causes the shaft 21 of the drive motor 20 of the propeller fan B to perform an axially inclined circular cycle swing together with the propeller 22.
A ball joint type bearing portion 30 is provided at a corresponding position of the front wall 11 of the main housing 10 and the drive motor 20 shaft 21,
A crank interlocking mechanism 50 is provided between the rear side of the drive motor 20 and the rear wall 12 of the main housing 10.
The ball joint type bearing 30 is
The front wall 11 has a ball mounting surface 31 and a through hole 32 through which the drive motor 20 shaft 21 passes in the center of the ball mounting surface 31.
The drive motor 20 has a spherical abutment seat 40 having a spherical abutment surface 41 on the front side and a through hole 42 through which the drive motor 20 shaft 21 penetrates in the center of the spherical abutment surface 41. ,
The drive motor 20 shaft 21 passes through the through hole 42 of the spherical abutting seat 40 and the through hole 32 of the front wall 11, and the spherical abutting surface 41 abuts the ball mounting surface 31. And
The crank interlocking mechanism 50 is
A transmission block 53;
The transmission block 53 is configured such that the second end is fitted to the turning shaft portion 13 of the rear wall 12 of the main housing 10, and the second end is moved to swing. is there.

  Compared with the prior art, the present invention provides an original propeller fan structure form with a built-in swing form, and the propeller fan performs an axis tilt swing together with the propeller, and the flow of blowing air is automatically performed. This is an original operation mode in which the purpose of changing the airflow is achieved and the flow of the blowout air changes along the circular cycle route. It suits more by nature and inventive step.

  Another main object of the present invention is that the spherical abutment seat on the front side of the drive motor has a spherical abutment surface when the drive motor and the shaft cause an axially inclined circular cycle swing. The structure is designed to abut each other on the ball mounting surface of the bearing part, thereby forming a stable support state of spherical universal transmission, stable tilt swing of the drive motor and propeller, low noise and high quality. Have.

  An embodiment of the present invention will be described below.

  1 is an exploded perspective view showing a built-in swing mechanism A having a propeller fan structure according to a first embodiment of the present invention. FIG. 2 is an enlarged view showing the spherical abutment seat 40 on the front side of the drive motor 20 and the inner side of the front wall 11 of the main housing 10 in FIG. FIG. 3 is a perspective view showing the main casing 10 of the propeller fan B as seen from the back side. FIG. 4 is a cross-sectional view of the built-in swing mechanism inside the main housing 10 of the propeller fan B.

  The built-in swing mechanism A is provided in the main housing 10 of the propeller fan B, and the shaft 21 of the drive motor 20 of the propeller fan B is rotated with the propeller 22 to make a circular cycle swing with an inclined axis. It is configured as described.

  A ball joint type bearing portion 30 is provided at a position corresponding to the drive motor 20 shaft 21 in the front wall 11 of the main housing 10. The ball joint type bearing portion 30 includes a ball mounting surface 31 and a through hole 32 at the center of the ball mounting surface 31. The drive motor 20 shaft 21 is passed through the through hole 32.

  On the front side of the drive motor 20, a spherical abutment seat 40 to be coupled and fixed is provided. The spherical abutment seat 40 has a spherical abutment surface 41, and the spherical abutment surface 41 abuts on the ball mounting surface 31 of the ball joint type bearing portion 30. A through hole 42 is formed in the center of the spherical abutting surface 41, and the drive motor 20 shaft 21 passes through the through hole 42.

  As shown in FIG. 4, a crank interlocking mechanism 50 is provided between the rear side of the drive motor 20 and the rear wall 12 of the main housing 10. The crank interlocking mechanism 50 includes a transmission block 53 and a motor transmission device 51.

  The transmission block 53 has a shaft hole 54 to be fitted to the output shaft 52 of the motor transmission device 51 on one side, and has a protruding column 55 and an annular edge 56 on the other side.

  A swivel shaft portion 13 is formed on the rear wall 12 of the main housing 10. The pivot shaft portion 13 has a combination base hole 131 and an annular groove 132 corresponding to the protruding column 55 and the annular edge 56.

  The transmission block 53 is provided such that the protruding column 55 is fitted in the combination base hole 131 and the annular edge 56 is fitted in the annular concave groove 132 so as to swing.

  The motor transmission 51 is independently operated, is provided on the rear side of the drive motor 20, and has an output shaft 52. A shaft hole 54 of the transmission block 53 is fitted and fixed to the output shaft 52.

  As shown in FIG. 2, a plurality of protruding blocks 415 are arranged in a ring on the spherical abutting surface 41 of the spherical abutting seat 40 at intervals. A plurality of slots 315 are arranged in a ring on the ball mounting surface 31 of the ball joint type bearing portion 30 at intervals. The protruding block 415 and the slot 315 are opposed to each other. The width of the protruding block 415 is smaller than the slot 315. Each protruding block 415 is fitted in each slot 315, and the spherical abutment seat 40 has a characteristic of universally rotating within the lens mounting surface 31, and in addition, the protruding block 415 and the slot 315 The appropriate limit effect is obtained by the fitting. Even in the case of vibration generated when the shaft 21 rotates, the position of the drive motor 20 is generated, so that a limit effect is obtained by fitting the protruding block 415 and the slot 315.

  A limit base 60 is provided inside the ball joint type bearing portion 30. The limit base 60 has a combination part 61 and a hole 62. The limit base 60 is fixed to the inner side of the main housing 10 so that the combination portion 61 and the hole 62 are aligned with corresponding portions of the main housing 10. The combination part 61 is a plurality of holes through which the bolts penetrate. Further, the diameter of the hole 62 is smaller than the outer diameter of the spherical abutment seat 40 so that the spherical abutment seat 40 does not come off. Note that the limit base 60 is not a necessary part in specific implementation, and in the ball joint type bearing portion 30 as shown in FIG. 5, the ball mounting surface 31B is provided in a deep concave type. As a result, the spherical abutment seat 40 is combined more deeply, so that there is no possibility of detachment even without the limit base 60.

  Next, the operation state of the crank interlocking mechanism 50 according to the present invention having the above-described structure and combination design will be described.

  As shown in FIG. 4, when the motor speed change device 51 is driven and the output shaft 52 rotates, the transmission block 53 rotates, the output shaft 52 rotates in a circumferential direction, and the drive motor 20 and the shaft 21 are in a circularly inclined circle. Cycle swing.

  The propeller fan B performs a circular cycle swing with the propeller 22 tilted in the state where the main housing 10 does not move, and changes the flow direction of the blowing air.

  The flow of the blowing air from the propeller 22 becomes an original operation form that changes along the circular cycle route, and blows in various directions, up, down, left, and right, and the area that the blowing air hits increases.

  On the other hand, when the drive motor 20 is making a circular cycle swing with the shaft 21 in an axial inclination, the front end portion of the drive motor 20 is the spherical abutment seat 40, the spherical abutment surface 41 is the ball joint type bearing portion 30. A stable support state of spherical universal transmission is obtained by hitting the ball mounting surface 31.

  Next, a propeller fan provided with the crank interlocking mechanism 50 will be described.

  FIG. 6 shows a propeller fan B of a vertical ventilation fan type. The propeller fan B has a stand portion 70 extending in the vertical direction. The fan is a fan whose entire outer frame provided outside the propeller 22 is the net stand 71.

  FIG. 7 shows a propeller fan B2 of a vertical rotating fan structure type. In the rotating fan, the outer frame provided outside the propeller 22 has a cylindrical air guide frame portion 72, whereby the flow of the blown air is concentrated in the guided direction and has an effect of strengthening.

  FIG. 8 shows a propeller fan B3 of a seat type ventilation fan structure type. The propeller fan B3 has a stand portion 80, and the entire outer frame provided outside the propeller 22 is a net stand 81.

  FIG. 9 shows a propeller fan B4 of a seat type rotating fan structure type. The propeller fan B4 has a cylindrical air guide frame portion 82 on the outer frame provided outside the propeller 22, and has a use effect of concentrating and strengthening in the direction in which the flow of blowing air is guided. .

FIG. 10 shows a ceiling fan type propeller fan B5. The main casing 10 is provided with a suspension portion 90, which is a lifting type. By installing the suspension part 90, the propeller fan B5 is provided and used under the ceiling.
[Description of effects]
1. Due to this original design, compared with the prior art, the present invention provides an original propeller fan structure form having a built-in swing form, and the propeller fan performs an axis tilt swing together with the propeller, and blows out. The purpose of automatically changing the flow of wind is achieved, and in the original operation form that the flow of the blowing air changes along the circular cycle route, it is directed in various directions up and down, left and right, the area where the blowing air hits increases, More suitable for practical use required by users.

  2. The propeller fan according to the present invention has a spherical abutting surface in which the spherical abutting surface of the ball joint type bearing portion is the front of the driving motor when an axially inclined circular cycle swing is caused by the drive motor and the shaft. The structure design is designed to abut each other on the ball mounting surface, thereby creating a stable support state of spherical universal transmission, stable drive motor and propeller tilt swing, and practicality with low noise and high quality. is there.

  3. Between the spherical abutment surface of the spherical abutment seat and the ball mounting surface of the ball joint type bearing part, the structure is such that the projecting blocks and slots that are spaced apart are arranged in an annular fashion, so that The contact seat rotates universally within the lens mounting surface, and a limit effect is obtained by fitting the projecting block and the slot. Note that even when vibration occurs when the shaft 21 rotates, the position of the drive motor 20 is generated, so that a limit effect is obtained by fitting the protruding block 415 and the slot 315.

  The above-described embodiments are specific descriptions of the present invention, and are described using specific technical terms in the text. However, the scope of the present invention is not limited, and personnel who are familiar with this technical field. Can be modified or improved without departing from the spirit and principle of the present invention. However, all such changes or improvements are included in the scope of the claims for utility model registration.

It is a perspective view which decomposes | disassembles and shows the built-in type swing mechanism of the propeller fan structure which becomes Example 1 of this invention. FIG. 2 is an enlarged view of a spherical abutment seat on the front side of a drive motor and an inner side of a front wall of a main housing in FIG. It is a perspective view which shows the main housing | casing of a propeller fan seeing from the back side. It is sectional drawing of the built-in type swing mechanism inside the main housing | casing of a propeller fan. It is a figure which expands and shows the ball joint type bearing part of a built-in type swing mechanism. It is a perspective view which shows a vertical-type ventilation fan type propeller fan. It is a perspective view which shows the propeller fan of a vertical revolving fan structure type. It is a perspective view which shows the propeller fan of a seat type ventilation fan structure type. It is a perspective view which shows the propeller fan of a seat type rotation fan structure type. It is a figure showing a ceiling fan type propeller fan.

Explanation of symbols

A Built-in swing mechanism B, B2, B3, B4, B5 Propeller fan 10 Main housing 11 Front end wall 12 Rear end wall 13 Rotating shaft 131 Combination base hole 132 Ring groove 20 Drive motor 21 Shaft 22 Propeller 30 Joint type Bearing portions 31, 31B Spherical mounting surface 315 Slot 32 Through hole 40 Spherical abutting seat 41 Spherical abutting surface 415 Projecting block 42 Through hole 50 Crank interlocking mechanism 51 Motor transmission device 52 Output shaft 53 Transmission block 54 Shaft hole 55 Projection column 56 annular edge 60 limit base 61 combination part 62 hole 70 support part 71 net stand 72 cylindrical air guide frame part 80 seat part 81 net stand 82 cylindrical air guide frame part 90 suspension part

Claims (4)

Provided inside the main casing (10) of the propeller fan (B), the shaft (21) of the drive motor (20) of the propeller fan (B) is caused to perform a circular cycle swing with an inclined axis together with the propeller (22). A built-in swing mechanism,
A ball joint type bearing (30) is provided at a position corresponding to the front wall (11) of the main housing (10) and the shaft (21) of the drive motor (20),
A crank interlocking mechanism (50) is provided between the rear side of the drive motor (20) and the rear wall (12) of the main housing (10),
The ball joint type bearing (30)
The front wall (11) has a ball mounting surface (31) and a central through hole (32) of the ball mounting surface (31);
The drive motor (20) has a spherical abutting seat (40) having a spherical abutting surface (41) and a through hole (42) in the center of the spherical abutting surface (41) on the front side,
The shaft (21) of the drive motor (20) passes through the through hole (42) of the spherical abutment seat (40) and the through hole (32) of the front wall (11), and the spherical abutment. The surface (41) is configured to abut against the target mounting surface (31),
The crank interlocking mechanism (50)
A transmission block (53),
The transmission block (53) has a second end fitted into the pivot shaft (13) of the rear wall (12) of the main housing (10), and the second end is moved by moving the first end. A built-in swing mechanism with a propeller fan structure, characterized in that it is configured to swing. On the spherical abutting surface (41) of the spherical abutting seat (40), a plurality of projecting blocks (415) are arranged in a ring at intervals.
The ball-shaped mounting surface (31) of the ball joint type bearing portion (30) has a plurality of slots (315) arranged in a ring at intervals.
The propeller fan structure built-in swing mechanism according to claim 1, wherein the protruding block (415) and the slot (315) are opposed to each other. A limit base (60) is provided inside the ball joint type bearing (30),
The limit base (60) has a combination part (61) and a hole (62) fixed to the inside of the main casing (10) so as to match the corresponding part of the main casing (10). ,
2. The propeller fan according to claim 1, wherein a diameter of the hole (62) is smaller than an outer diameter of the spherical abutment seat 40 so that the spherical abutment seat (40) does not come off. Built-in swing mechanism with structure. The crank interlocking mechanism (50) further includes a motor transmission (51) provided on the rear surface of the drive motor (20),
The motor transmission (51) has an output shaft (52),
A shaft hole (54) on one side of the transmission block (53) is fitted to the output shaft (52) of the crank interlocking mechanism (50),
The transmission block (53) has a protruding column (55) and an annular edge (56) on the other side,
The pivot shaft portion (13) of the main housing (10) has a combination base hole (131) and an annular groove (132), and the protruding column (55) fits into the combination base hole (131). The propeller fan structure built-in swing mechanism according to claim 1, wherein the annular edge (56) is fitted into the annular groove (132).

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