JP3071487U - Dust treatment equipment - Google Patents

Abstract

(57) [Problem] To effectively prevent dust of a certain size from flowing into the suction hose 8 or the permanent dust suction pipe 4. SOLUTION: A permanent dust suction pipe 4 is provided in a building, an appropriate portion of the permanent dust suction pipe 4 is communicated with a connection port member 6 fixed in the building, and a dust suction hose 8 is connected to the connection port member 6. In a dust processing apparatus structured to be detachably connected and to connect a hand-held suction processing tool 9 to the tip of a dust suction hose 8, the hand-held suction processing tool 9 is connected to a hand-held suction pipe 28 and the tip thereof. In addition to the dust suction opening member 29, a coarse dust collector 38 is detachably provided at this connection point.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a dust processing apparatus having a structure in which a permanent dust suction pipe is provided in a building.

[0002]

[Prior art]

 A permanent dust suction pipe is provided on the building, and an appropriate part of the permanent dust suction pipe is connected to a connection port member fixed inside the building, and a dust suction hose is detachably connected to the connection port member. There is already a dust processing device configured to connect a hand-held suction processing tool to the tip of a dust suction hose.

When treating dust in a building with this type of apparatus, an operator holds a hand-held suction processing tool and sucks dust on the floor or the like from a dust suction opening formed at the tip of the tool. I have to. The dust sucked from the dust suction opening is sucked into the central dust collector via the dust suction path of the hand-held suction processing tool, the dust suction hose, and the permanent dust suction pipe.

[0004]

[Problems to be solved by the invention]

 In the above-described dust processing apparatus, if large dust such as paper dust or a piece of cloth is sucked by mistake from the dust suction opening, it may be clogged in the dust suction hose or the permanent dust suction pipe. Elimination of this clogging usually requires a lot of effort, especially when clogging occurs in a permanent dust suction pipe.

[0005] The present invention has been made in view of such circumstances, and an object of the present invention is to provide a dust processing apparatus capable of easily preventing dust from being clogged in a permanent dust suction pipe or a dust suction hose. .

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in the dust treatment apparatus of the present invention, a permanent dust suction pipe is provided in a building, and an appropriate part of the permanent dust suction pipe is fixed in the building. In the dust processing apparatus, the dust suction hose is detachably connected to the connection port member, the dust suction hose is detachably connected to the connection port member, and a hand-held suction processing tool is connected to a tip of the dust suction hose. The tool comprises a hand-held suction pipe and a dust suction opening member connected to the tip thereof, and a coarse dust collector is detachably provided at this connection point. According to this, the coarse dust is collected at the connection point between the hand-held suction pipe and the dust suction opening member, and no clogging of dust occurs in the permanent dust suction pipe or the dust suction hose.

In this case, as described in claim 2, a coarse dust collector may be detachably provided at a connection point between the dust suction hose and the hand-held suction processing tool. According to this, since the coarse dust is collected at the connection point between the dust suction hose and the hand-held suction processing tool, the clogging of the dust in the permanent dust suction pipe and the dust suction hose does not occur.

Further, the coarse dust collector may have a cross-shaped lattice or a river-shaped lattice in the ring body. According to this, the coarse dust collector becomes an independent body having a simple structure, and is excellent in manufacturing and handling.

[0009]

[Embodiment of the invention]

 FIG. 1 is an explanatory view showing an embodiment of the dust processing apparatus according to the present invention, FIG. 2 is a cross-sectional view showing the vicinity of a connection port member of the dust processing apparatus, and FIG. 3 is a hand-held part of the dust processing apparatus. FIG. 4 is a side view showing the tip of the suction processing tool, FIG. 4 is a view showing a coarse dust collector which forms part of the dust processing apparatus, FIG. 5 is a view showing a modification of the dust processing apparatus, FIG. It is sectional drawing which shows the connection part of the dust suction hose and the hand-held suction processing tool which concern on a modification.

In FIG. 1, 1 is a dust collecting device, 2 is a blower, 3 is a silencer, 4 is a permanent dust suction pipe provided in a building, 5a and 5b are exhaust lines, and 6 is a building A connection port member fixed to the wall 7, 8 is a dust suction hose, and 9 is a hand-held suction processing tool.

To explain this in more detail, the dust collecting apparatus 1 is configured such that bag filters 11 and 11 are provided inside a cylindrical frame 10 and a dust container 12 is provided below the cylindrical frame 10. The blower 2 sucks air in the dust collection chamber 10a of the cylindrical frame 10 through the bag filters 11, 11 and the exhaust line 5a, and discharges the air to the atmosphere through the exhaust line 5b and the silencer 3. I have. The permanent dust suction pipe 4 extends from the dust collecting chamber 10a of the dust collecting apparatus 1 and leads to various parts of the building.

The connection port member 6 is communicated with the permanent dust suction pipe 4 via the connection pipe 4a. The details will be described below with reference to FIG. That is, a metal cylinder member 13 and a closing means 14 are provided. The metal tubular member 13 has a cylindrical portion 13b having an external thread portion 13a at one end and an insertion hole s1 at the other end, and a flange portion 13c at a position close to the external thread portion 13a on the outer peripheral surface of the cylindrical portion 13b. It is supposed to have. A donut-shaped wall protection plate 15 is externally fitted on the outer peripheral surface of the cylindrical portion 13b so as to be in contact with the outer surface of the flange portion 13c, and a ring member 16 having a shaft fixing bracket 16a is externally fitted. And is fixed in contact with the outer surface of the wall protection plate 15.

On the other hand, the closing means 14 mounts a lid member 18 on a shaft fixing bracket 16 a of the ring member 16 via a horizontal shaft 17 so as to be vertically swingable, and attaches the lid member 18 around the horizontal shaft 17. In addition to engaging a coil spring 19 for urging downward, a hook member 20 is bolted to substantially the center on the inner surface side of the lid member 18. When the lid member 18 is in a free state, the elasticity of the coil spring 19 and the The lid member 18 operates to close the inner hole of the cylindrical member 13b by the action of gravity. On the other hand, when the lid member 18 is pulled up by a finger, the cross section of the inner hole of the cylindrical member 13b is fully opened. There is.

As shown in FIG. 2, a cylindrical fixing member 22 having a female screw 22 a is embedded and fixed in the wall surface 7, and the connection port member is provided at an outer end of the cylindrical fixing member 22. 6 are screwed in and fixed. Further, the connection pipe 4a is screwed and fixed to the inner end of the cylindrical fixing member 22 in a communicating manner.

The dust suction hose 8 is a hose made of a resin material having excellent flexibility, and a metal connection pipe member 23 is fixed to one end of the hose. The connection pipe member 23 has a hose insertion portion 25 inserted into one end opening of the dust suction hose 8 and fixed via a rubber fixing boot 24, and has a difference between the cylindrical portion 13 b of the connection port member 6. It has a fitting tube portion 26 to be fitted into the insertion hole s1, and the fitting restricting ridge 26a and the flange portion 27 are formed on the outer peripheral surface of the fitting tube portion 26 at an appropriate distance. When the insertion tube portion 26 is completely inserted into the insertion hole s1 of the cylindrical portion 13b, the connection restricting ridge 26a abuts on the outer end surface of the cylindrical portion 13b. Reference numeral 27 denotes a member that is locked by the hook member 20 fixed to the lid 18 and restricts the fitted cylindrical portion 26 from coming out of the cylindrical portion 13b. At this time, the locking of the flange 27 by the hook member 20 is stably held by the elasticity of the coil spring 19 and the like.

The hand-held suction processing tool 9 will be described in detail with reference to FIGS. 1, 3, and 4 as follows. That is, a hand-held suction pipe 28 connected to the tip of the dust suction hose 8 and a dust suction opening member 29 connected to the tip of the hand-held suction pipe 28 are provided. The hand-held suction tube 28 is formed of a thin metal tube, and has an original side bent in an L-shape.

As shown in FIG. 3, a dust suction opening member 29 is connected to a distal end of the hand-held suction tube 9 via a connection elbow 30. The dust suction opening member 29 includes a dust suction opening portion 31 and a connection pipe portion 32. The dust suction opening portion 31 has an opening wall m having a downward opening 31a. The connecting wall 32 is connected to the internal space of the opening wall m in such a manner that the bristle 33 faces downward and the opening 31a surrounds the opening 31a. A ring-shaped ridge 34a having an arc-shaped cross section is formed in the middle of the length of the outer peripheral surface of the straight cylindrical portion 34. The dust suction opening member 29 shown in FIGS. 1 and 3 is merely an example, and may have other forms (for example, a rubber plate fixed to the brush bristles 33 or a dust suction opening 31). A round shape in a plan view, a flat tube shape in which the connection tube portion 32 is extended, or a thin tube shape in which the connection tube portion 32 is extended). It should be noted that, if necessary, any one of these suitable for the on-site dust to be treated can be arbitrarily selected and replaced with the currently installed one.

The connection elbow 30 has a tip end of the hand-held suction tube 28 fitted in the inner hole at the original end, and forms a slightly larger insertion hole s2 in the inner hole at the tip end. Further, a male screw 36 for screwing the connection operation nut body 35 is formed on the outer peripheral surface of the front end portion.

The connecting operation nut body 35 has a front end formed by a tapered wall 35 a, and an open ring-shaped round bar spring body 37 is provided between the tapered wall 35 a and the distal end face of the connection elbow 30 to reduce its elasticity. It is interposed in a state where the diameter is reduced against it. At this time, when the connection operation nut body 35 is turned in the tightening direction, the tapered wall 35a is displaced in the direction of the arrow f1, and the open annular round bar spring body 37 is reduced in diameter by the wedge action of the tapered wall 35a. Conversely, when the connecting operation nut body 35 is turned in the loosening direction, the tapered wall 35a is displaced in the direction opposite to the arrow f1, and the open annular round bar spring body 37 is expanded and deformed by the wedge action of the tapered wall 35a. Associate each part so that

In this hand-held suction processing tool 9, when the dust suction opening member 29 is separated from the hand-held suction tube 28, the connection operation nut body 35 is loosened and the dust suction opening member 29 is moved to the hand-held suction tube. The dust suction opening member 29 is connected to the hand-held suction pipe 28 in the opposite manner.

At the innermost part of the insertion hole s 2 of the connection elbow 30, a coarse dust collector 38 having a lattice surface for restricting the flow of dust larger than a certain size can be extracted to the front. It is inserted in. As shown in FIG. 4, the coarse dust collector 38 has a structure in which a grid member 40 is fixed in the inner hole of a metal ring body 39. In the illustrated example, two grid members 40 as the grid member 40 are used. The round bar is fixed at a diameter position perpendicular to the metal ring body 39 to form a cross lattice. Alternatively, three straight round bars serving as the lattice members 40 may be fixed in parallel inside the metal ring body 39 to form a river-shaped lattice. A plurality of types of coarse dust collectors 38 having different sizes of grids on the grid surface formed by the grid member 40 are prepared, and if necessary, any of these may be treated. Arbitrarily select dust that matches the on-site dust, and replace it with the currently installed dust. A set screw 41 for fixing the position of the coarse dust collector 38 is screwed on the outer peripheral wall of the connection elbow 30, and a cap nut 42 is screwed to the set screw 41.

The hand-held suction tube 28 of the hand-held suction processing tool 9 is detachably connected to the tip of the dust suction hose 8. The location where this connection exists (hereinafter, simply referred to as a connection location) K is sufficient because a continuous dust suction path extends from the hand-held suction processing tool 9 to the dust suction hose 8.

By the way, instead of providing the coarse dust collector 38 in the connection elbow 30, the connection point K can be modified as shown in FIGS. 5 and 6. ,It is as follows. That is, a connecting cylinder fitting 43 is fixed to the tip of the dust suction hose 8, and the connecting cylinder fitting 43 has an insertion portion 44 and a front connection portion 45 slightly larger in diameter than the insertion portion 44. . The insertion portion 44 is inserted into the opening of the tip of the dust suction hose 8 and is fixed via a rubber hose fixing boot 46, and the inside of the front connection portion 45 is the same as that described above. A large dust collector 38 is inserted. In the illustrated example, the large dust collecting tool 38 is formed as a cross grid by fixing two straight round bars as the grid members 40 at the diameter positions orthogonal to the ring member 39 as in the previous example. In this case as well, it is preferable to make it possible to replace and install another one with a different lattice as in the above-mentioned case.

A connecting cylinder member 48 made of a rubber-equivalent material is externally connected to the front connecting portion 45, and a diameter of the connecting cylindrical member 48 is slightly larger than that of the front connecting portion 45 at the front portion. The made insertion hole s3 is formed. The flange 45a of the front connecting portion 45 is locked to the step at the rear end of the insertion hole s3, and a metal reinforcing collar 49 is provided at the innermost portion of the insertion hole s3 for rigidity around it. Are embedded and fixed in an interpolated manner so as to increase A connecting operation collar 50 is fitted to the front part of the connecting cylinder member 48 so as to be movable back and forth, and a pair of front and rear for regulating the moving range of the collar 50 is provided on the outer peripheral surface of the connecting cylinder member 48. Ridges 48a and 48b are formed.

The rear end fitting portion 51 of the hand-held suction tube 28 is inserted into the insertion hole s3, and the rear end fitting portion 51 is slightly larger in diameter than other portions of the hand-held suction tube 28. An annular ridge 51a having a circular cross section is formed in the middle of the length of the outer peripheral surface.

At the connection point K, when inserting the rear end fitting portion 51 into the insertion hole s3, the connecting operation collar 50 is slid to the rear position p1 so that the rear end fitting portion 51 is 6, the connection operation collar 50 is slid to the position shown in FIG. 6. On the other hand, when the rear end fitting portion 51 is pulled out from the insertion hole s3, the reverse is performed. I do. When the connection operation collar 50 is at the position shown in FIG. 6, the inner peripheral surface of the insertion hole s3 and the annular ridge 51a of the rear end fitting portion 51 are particularly strongly pressed against each other.

Next, an example of use of the above-described dust processing apparatus will be described. A dust suction hose 8 is connected to the connection port member 6, a hand-held suction pipe 28 is connected to a tip of the suction hose 8, and a dust suction opening member 29 is connected to a tip of the suction pipe 28. In this state, the blower 2 is operated to apply a vacuum pressure to the permanent dust suction pipe 4, and the operator holds the hand-held suction processing tool 9 by hand and removes the dust from the dust suction opening member 29. The dust is sucked from the suction opening 31a, so that the dust sucked together with the air from the suction opening 31a is held by the hand-held suction pipe 28, the dust suction hose 8, the connection port member 6, and the permanent dust suction pipe. 4, the dust reaches the dust collection chamber 10a, where it falls directly into the dust container 12 or is separated and dropped by the bag filter 11, while the air in the dust collection chamber 10a is removed by the bag filter 11a. After passing through, is released to the atmosphere.

During such dust processing, when coarse dust which is liable to cause clogging in the hose is sucked through the dust suction opening 31 a, it is caught by the coarse dust collector 38 in the connection elbow 30. This prevents dust from clogging without flowing into the hand-held suction pipe 28 or the dust suction hose 8.

The coarse dust due to the above-mentioned hooking can be easily detected as a vibration sound or an abnormal sound, and becomes an overall suction force. Therefore, the dust is appropriately removed. Then, the connection pipe part 32 of the dust suction opening member 29 is pulled out from the insertion hole s2 of the connection elbow 30, and the front space of the coarse dust collector 38 is opened. As a result, the collected coarse dust is easily and quickly removed.

The above description is for the case where the coarse dust collector 38 is provided in the connection elbow 30. As shown in FIGS. 5 and 6, the coarse dust collecting member 38 is provided at the connection point K between the hand-held suction pipe 28 and the dust suction hose 8. The same applies to the case where the collector 38 is provided. That is, when the coarse dust is sucked in, the dust is caught on the lattice surface of the coarse dust collector 38 to prevent the dust from flowing into the hose, thereby preventing the dust from being clogged in the suction hose 8. When removing the collected dust, the connection operation collar 50 is slid in the direction of arrow f2 to pull out the rear end fitting portion 51 of the hand-held suction tube 28 from the insertion hole s3 of the connection tube member 48. This is performed so as to open the front space of the coarse dust collector 38. As a result, as in the case described above, the collected coarse dust can be easily and quickly removed, and efficient dust processing can be performed.

In the processing of the dust, the size of the dust to be collected by the coarse dust collector 38 is determined by preparing several different sizes of grids on the grid surface and appropriately replacing and demounting. Can be used properly.

The replacement of the coarse dust collector 38 in the connection elbow 30 is performed as follows, that is, the connection pipe portion of the dust suction opening member 29 from the insertion hole s2 of the connection elbow 30. 32, the set screw 41 is loosened, and the coarse dust collector 38 is pulled out from the insertion hole s2. Thereafter, another coarse dust collector 38 of a different lattice is inserted, and the set screw 41 is again inserted. And the connecting tube 32 is inserted.

On the other hand, the replacement of the coarse dust collector 38 in the connection point K is performed as follows, that is, the rear end fitting portion 51 is pulled out from the insertion hole s3 of the connection cylinder member 48. In this state, the coarse dust collector 38 is pulled out from the insertion hole s3, and then another coarse dust collector 38 of a different lattice is inserted, and the rear end fitting portion 51 is inserted again. To do.

In the present invention, since the coarse dust collector 38 is provided upstream of the connection port member 6 in the dust suction path, it is convenient to manage the coarse dust, which causes the clogging of the hose, at the end of the hose or at the location where the hose is held. Will be able to do it.

[0035]

[Effect of the invention]

 According to the present invention, the following effects can be obtained, that is, the coarse dust which causes the clogging of the hose is effectively prevented and easily and easily removed at the hand-held suction processing tool portion of the operator. It is also possible to hear and detect the abnormal sound caused by the catch at hand, and to immediately detect the noise and easily remove the dust without delay, thereby reducing the work efficiency. Without any.

According to the third aspect, the coarse dust collector becomes an independent body having a simple structure, and is excellent in manufacturing and handling.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing one embodiment of a dust processing apparatus according to the present invention.

FIG. 2 is a cross-sectional view showing a periphery of a connection port member of the dust processing apparatus.

FIG. 3 is a side view showing a tip portion of a hand-held suction processing tool which forms a part of the dust processing apparatus.

FIG. 4 is a view showing a dust flow restricting tool which forms a part of the dust processing apparatus.

FIG. 5 is a view showing a modified example of the dust processing apparatus.

FIG. 6 is a cross-sectional view showing a connection portion between a dust suction hose and a hand-held suction processing tool according to the modification.

[Explanation of symbols]

 Reference Signs List 4 Permanent dust suction pipe 6 Connection port member 8 Dust suction hose 9 Hand-held suction processing tool 28 Hand-held suction pipe 29 Dust suction opening member 38 Dust flow regulating tool K Connection point

Claims (3)

[Utility model registration claims] 1. A permanent dust suction pipe is provided in a building, an appropriate portion of the permanent dust suction pipe is communicated with a connection port member fixed in the building, and a dust suction hose is detachably connected to the connection port member. In the dust processing apparatus having a structure in which a hand-held suction processing tool is connected to a tip of a dust suction hose, the hand-held suction processing tool includes a hand-held suction pipe and a dust suction opening member connected to the tip. A dust processing apparatus characterized in that a coarse dust collector is detachably attached to the connection point. 2. A permanent dust suction pipe is provided in a building, and an appropriate portion of the permanent dust suction pipe is communicated with a connection port member fixed in the building, and a dust suction hose is detachably connected to the connection port member. In the dust processing apparatus having a structure in which a hand-held suction processing tool is connected to a tip of a dust suction hose, the hand-held suction processing tool includes a hand-held suction pipe and a dust suction opening member connected to the tip. In addition, a dust processing apparatus characterized in that a coarse dust collector is detachably provided at a connection point between a dust suction hose and a hand-held suction processing tool. 3. The dust processing apparatus according to claim 1, wherein the coarse dust collector has a cross lattice or a cross-shaped lattice inside the ring.