JPH0618697U - Multi-blade blower - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a multi-blade blower capable of expanding the versatility by ensuring the degree of freedom of installation according to the actual conditions of the installation site. [Structure] A suction port which is detachably attached to the outer periphery of the collar part by an even number of bolts of four or more at equal intervals, and a suction port which is installed on the opposite side of the suction port part of the casing body and is located at the outer peripheral edge. The linear cover portion is detachably attached with the same number of bolts as the portion and is equidistant, and a frame body for fixing the linear cover portion in a state where the casing body is inclined.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a multi-blade blower having a very high degree of freedom in air blow operation such that the position of the discharge port can be inclined at a desired angle and the position of the suction port can be changed to left or right at any time.

[0002]

[Prior art]

 In a conventional multi-blade blower that has a multi-blade fan built into the casing and has a suction port and a discharge port, is it generally molded with the suction port and the discharge port integrally attached to the casing body? Or, the suction port was integrally attached to the casing body, and the multi-blade fan was inserted and mounted from each linear cover for use.

In this case, however, since the relative positions of the suction port and the discharge port are fixed, it is difficult to always properly install them according to the actual conditions of other ventilation facilities etc. in the installation site. However, there is a drawback that the flexibility of installation is low and the flexibility of operation is poor.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of the above circumstances, and has a structure in which the position of the discharge port can be inclined at a desired angle not only before the installation but also after the installation, and the suction port and the linear cover are respectively casings. The purpose is to provide a multi-blade blower that has compatibility with the main body and can be attached to the left or right side of the casing main body at any time, and has maximum freedom in installation and blower operation. To do.

[0005]

[Means for Solving the Problems]

 The present invention comprises: a. A casing body containing a multi-blade fan and having a discharge port portion fixed at a predetermined position; b. A suction port part which is installed substantially orthogonal to the discharge port part and which is detachably attached to the casing body by an even number of four or more evenly spaced bolts on the outer periphery of the collar part; c. A linear cover portion that is installed on the opposite side of the casing body facing the suction opening portion and is detachably attached to the casing body at the outer peripheral edge portion with the same number of bolts at equal intervals as the suction opening portion, and detachably. A frame body having an arm portion for fixing the linear cover portion in a state where the casing body is inclined at a desired angle, and e. And a drive source f. A multi-blade blower is established as its gist.

[0006]

【Example】

 FIG. 1 is an exploded view of a component structure of a multi-blade blower according to the present invention, and FIGS. 2, 3 and 4 are views of a casing body in which discharge ports are located in the upper left, upper right, or lower left side when viewed from a drive source, respectively. FIG. 5 is an explanatory diagram showing the coupling relationship between the linear cover portion and the arm portion of the frame body.

The multi-blade blower according to the present invention is fitted in the casing body 2 substantially orthogonal to the casing body 2 having the multi-blade fan 1 therein and having the discharge port portion 3 and the discharge port portion 3 opening upward. The even number of bolt holes 6 formed in the outer periphery of the flange portion 5 on the rear surface of the casing body 2 at even intervals and the bolt holes 2a formed in the outer periphery of the front surface 2b of the casing body 2 are aligned with each other. A linear cover portion having a suction port portion 4 which is detachably attached, and a bolt hole 9 which is installed on the opposite side of the casing body so as to face the suction port portion 4 and has the same number of bolt holes 9 as the suction port portions 4 on the outer peripheral edge portion 8. 7 and arm portions 11A and 11B for fixing the linear cover portion 7 in a state in which the casing body 2 is inclined at a desired angle. The bolt holes 11a and 11b of both arm portions and the bolt hole 9 (a of the linear cover portion 7 are provided. ~ L) Bolts that penetrate the casing A frame body for fixing the 2, Ru is configured from a drive source 12 for driving the multiblade fan. In this example, the motor is mounted on the frame body.

A shaft 13 is attached to the drive source 12, and the tip of the shaft 13 passes through the gas cutoff 14, the gland sheet 15, and the packing 16 and passes through the center hole of the linear cover 7 to be incorporated in the casing body 2. 1 is fitted on the bottom portion 1a and is crowned by the fan nut 1b. Reference numerals 17 and 18 denote casing O-rings. In addition to the motor direct drive type, V-belt mount type drive can be used.

In the multi-blade blower formed as described above, the features of the present invention which are not found in the conventional products are: Being able to use the frame body 10 to incline the casing body 2 and change the discharge direction of the blown air at the discharge port portion B. Regarding the mounting of the casing body 2, it is possible to change the relational position between the suction port part 4 and the discharge port part 3 by exchanging the compatible suction port part 4 and the linear cover part 7.

[0010]

[Action]

 This will be described with reference to FIGS. FIG. 2 is an explanatory view of the casing body 2 in the multiblade blower shown in FIG. 1, in which the discharge port part 3 is located on the upper left part when viewed from the drive source side, and the suction port part is located on this side of the drawing. Indicates the built-in multi-blade fan 1. This is the standard arrangement in this embodiment.

FIG. 3 shows the discharge port portion 3 located at the upper right portion when viewed from the drive source side. The suction port portion and the linear cover portion of the casing body in FIG. The suction port is located on this side of the drawing and the liner cover is located on the opposite side of the drawing, but the discharge port 3 is located exactly opposite to the case of FIG. Such a change can be made by the structure of the present invention in which the suction port portion and the linear cover portion are attachable and interchangeable with respect to the casing body.

In FIG. 4, the casing body and the casing body are tilted by 90 ° so that the discharge port is located on the lower left side when viewed from the drive source side, and the suction port is on this side of the drawing, and The linear cover is located on the back side of the figure. Fixing of the inclination of the casing body is achieved by bolting the bolt holes of the linear cover portion and the arm portion of the frame body so that they match predetermined positions.

Now, a case where there are 12 bolt holes, that is, 9a to 9l in the outer peripheral edge portion of the linear cover portion 7 will be described with reference to FIG. In the case of Fig. 2 in which the discharge port is located in the upper right part when viewed from the drive source side, the line connecting the bolt holes 9a and 9g is upright in the vertical direction of the figure, but when the casing body is tilted 90 °, As described above, the line connecting 9a and 9g is also inclined by 90 °. Then, a combination of 9e and 9i is bolted to the arm portion 11A of the frame body, and a combination of 9c and 9k is bolted to the arm portion 11B. Thus, the casing body and the frame body are joined together, and the state as shown in FIG. 4 is fixed and maintained.

Although not shown in the drawings, various arrangements can be made by combining the casing body and the frame body by exchanging the suction port portion and the linear cover portion and connecting the casing body by the inclination of the casing body. When the number of bolt holes on the outer circumference is 12, the unit is 30 °, but when the number of bolt holes is 16, the unit is 22.5 °, and further fine adjustment is possible.

[0015]

[Effect of device]

 The present invention is based on the above-mentioned structure, and is formed so that the suction port part and the linear cover part mounted on the casing body can be replaced, and the inclination of the discharge port part can be changed at any time even after installation. It is a very useful device that can be installed by changing the discharge direction according to the actual conditions of the installation site, and can significantly improve the operability of the multi-blade blower.

[Brief description of drawings]

FIG. 1 is an exploded view of components of a multi-blade blower according to the present invention.

FIG. 2 is an explanatory diagram of a casing body in which a discharge port portion is arranged in an upper left portion when viewed from a drive source.

FIG. 3 is an explanatory diagram of a casing body in which a discharge port portion is arranged in an upper right portion when viewed from a drive source.

FIG. 4 is an explanatory diagram of a casing body in which a discharge port portion is arranged on a lower left side portion when viewed from a drive source.

FIG. 5 is an explanatory diagram showing a coupling relationship between a linear cover portion and an arm portion of a frame body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Multi-blade fan 2 Casing body 3 Discharge port part 4 Suction port part 5 Suction port collar part 7 Linear cover part 8 Liner cover outer peripheral edge part 10 Frame body 11A Frame body arm part 11B Frame body arm part 12 Drive source

Claims (2)

[Scope of utility model registration request] 1. A casing body having a multi-blade fan built therein and having a discharge port portion fixed at a predetermined position, and a casing body which is installed substantially orthogonal to the discharge port portion and has four or more outer circumferences of the flange portion with respect to the casing body. Suction port that is detachably attached with an even number of bolts, and is installed on the opposite side of the casing body facing the suction port, and is detachable with the same number of bolts at the outer peripheral edge of the suction port. A multi-blade blower including a linear cover part attached to the casing body, a frame body having an arm part for fixing the linear cover part by inclining the casing body at a desired angle, and a drive source for the multi-blade fan. 2. The multiblade blower according to claim 1, wherein the number of bolts for attaching the suction port portion or the linear cover portion to the casing body is 12 or 16.