JPH0713450U - Structure of the attachment part of the suction port of the cyclone dust collector - Google Patents

Abstract

(57) [Summary] [Purpose] In a cyclone dust collector, in addition to eliminating the internal adhesion of dust that causes a decrease in dust collection capacity and blockage,
Makes internal inspection and cleaning easier. [Structure] The attachment part (3) of the dust suction port (2) is formed in a box shape, and the surface (3a) of the box-shaped dust suction port attachment part (3) facing the mounting surface of the dust suction port (2) is By mounting the dust cylinder (1) so as to project to the outside to some extent, a part of the flow of the suctioned dust-containing air collides with the projecting surface (3a) to cause a turbulent flow in the vicinity to prevent dust from adhering. Also, the dust suction port (2)
By slightly separating the mounting position of the above from the top plate (5), dust adhesion to the top plate is also prevented. Further, the inspection port (4) with a lid provided on the side surface of the box-shaped dust suction port attachment part (3) facilitates the inspection and cleaning of the inside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a mounting portion of a dust suction port of a cyclone dust collector.

[0002]

[Prior art]

 The cyclone dust collector separates and collects dust by placing the dust-containing air sucked into the dust collecting cylinder in a swirling flow, and Fig. 4 shows the structure of such a conventional general cyclone dust collector. is there. That is, the lower part (1a) of the cylindrical dust collecting cylinder (1) is formed in an inverted conical shape, and the discharge port (6) is provided at the tip thereof. An exhaust pipe (7) is provided through a top plate (5) that closes the upper end of the dust collecting pipe (1), and the dust collecting port (2) is provided in the upper part of the dust collecting pipe (1) in the tangential direction thereof. ) Is attached. Further, a dust hose (8) is connected to the dust suction port (2). In such a conventional cyclone dust collector, since the suctioned dust-containing air is swirled for a longer time to enhance the dust collection effect, the dust suction port (2) is at the top of the dust collection cylinder (1), that is, the top plate. It was installed at the position where it came into contact with (5).

[0003]

[Problems to be solved by the device]

 However, there is a problem that dust is gradually attached to the vicinity of the main body side of the dust suction port of such a conventional cyclone dust collector as it is used, gradually becoming a donut shape, and finally clogging. In particular, this tendency was remarkable when inhaling dust with moisture, and the dust adhered to the top plate, which also accelerated the blockage. In particular, dust adhesion to the top plate is caused by the water injection nozzle installed on the top plate in the water injection type cyclone dust collector previously filed by the applicant (utility model registration application, application number 1994-86796). It interfered with the function and hindered normal water droplet ejection into the cyclone. Furthermore, in the case of such an obstruction, when cleaning the inside, it was necessary to remove the dust hose and disassemble other parts, which required a lot of work. This invention was made to solve these drawbacks.

[0004]

[Means for Solving the Problems]

 That is, in a cyclone dust collector that separates and collects dust by a swirling flow, the attachment part (3) of the dust suction port (2) attached in the tangential direction is attached to the upper part of the dust collector (1) in a box shape. By mounting the box-shaped dust collector mounting portion (3), the surface (3a) of the box-shaped dust collector mounting portion (3) opposite to the mounting surface of the dust collector (2) is slightly projected to the outside of the dust collecting cylinder (1). Also, the dust suction port (2) is attached to the dust suction port attachment portion (3) formed in a box shape by providing it at a position slightly downward from the top plate (5) to form a box shape. By providing the inspection port (4) with the lid on the side surface of the dust suction port mounting portion (3), the above-mentioned drawbacks can be solved.

[0005]

[Action]

 The dust inlet mounting portion (3) is formed in a box shape, and the surface (3a) of the box-shaped dust inlet mounting portion (3) facing the attachment surface of the dust inlet (2) is external to the dust collecting tube (1). Since it is mounted so as to project slightly to the inside, turbulence occurs in the flow of suctioned dust-containing air, and it is possible to prevent dust from adhering. Further, by providing the dust suction port (2) at a position slightly downward from the top plate (5), it is possible to prevent dust from adhering to the top plate. Further, by providing a lid-equipped inspection port (4) on the side surface of the box-shaped dust inlet attachment part (3), the inside can be easily cleaned and inspected.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings (FIGS. 1 to 3). FIG. 1 is a perspective view of a main part of a cyclone dust collector having a dust inlet mounting portion according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a plan sectional view. The dust suction port (2) is attached to the upper part of the dust collecting cylinder (1) in a tangential direction by a box-shaped mounting portion (3). The surface (3a) of the box-shaped mounting portion (3) facing the mounting surface of the dust suction port (2) is attached to the outside of the dust collecting cylinder (1) so as to project to some extent. Therefore, during use, as shown by the arrow in FIG. 3, a part of the flow of the dust-containing air sucked from the dust suction port (2) collides with the projecting surface (3a), resulting in turbulent flow in the vicinity. The turbulent flow prevents dust from adhering. However, if the protruding surface (3a) is overhanging more than necessary, it causes pressure loss of the swirling air flow and leads to a reduction in the dust collection capability. Therefore, the overhanging condition depends on the diameter of the dust collecting tube (1), the dust suction port Determine appropriately according to the installation position in (2) and the suction fan capacity.

Further, since the attachment position of the dust suction port (2) is located slightly downward from the top plate (5), dust is prevented from adhering to the top plate. Also, since the box-shaped mounting part (3) is provided with an inspection port (4) with a lid on the side surface, you can inspect and clean the inside without removing or disassembling the dust hose as before. It can be done easily.

[0008]

[Effect of device]

 As described above, by devising the structure of the attachment part of the dust suction port to the cyclone body, it is possible to prevent dust from adhering to the cyclone body, which has been a problem up until now, which could lead to a decrease in dust collection capacity and blockage, and cleaning You can reduce the effort. Moreover, inspection and cleaning can be easily performed by the inspection port.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a side view of the present invention.

FIG. 3 is a plan sectional view of the present invention.

FIG. 4 is a schematic view showing the structure of a conventional cyclone dust collector.

[Explanation of symbols]

 1: Dust collector 1a: Lower part of inverted conical dust collector 2: Dust suction port 3: Box-shaped dust suction port attachment part 3a: Projecting surface 4: Inspection port 5: Top plate 6: Discharge port 7: Exhaust pipe 8: Dust hose

Claims (3)

[Scope of utility model registration request] 1. A cyclone dust collector that separates and collects dust by a swirling flow, and a dust collecting port (2) attachment portion (3) attached in a tangential direction to an upper portion of a dust collecting cylinder (1). A surface (3) formed in a box shape and facing the mounting surface of the dust inlet (2) of the box-shaped dust inlet mounting portion (3).
A structure for attaching a dust suction port of a cyclone dust collector, characterized in that a) is attached to the outside of the dust collecting cylinder (1) with some projection. 2. The mounting position of the dust suction port (2) to the box-shaped dust suction port mounting portion (3) is provided slightly downward from the top plate (5). The structure of the attachment part of the suction port of the cyclone dust collector described above. 3. The dust inlet of the cyclone dust collector according to claim 1 or 2, wherein an inspection port (4) with a lid is provided on a side surface of the box-shaped dust inlet mounting portion (3). Mounting structure.