EP3741473A1 - Borehole cleaning device, method and assembly - Google Patents
Borehole cleaning device, method and assembly Download PDFInfo
- Publication number
- EP3741473A1 EP3741473A1 EP20171562.0A EP20171562A EP3741473A1 EP 3741473 A1 EP3741473 A1 EP 3741473A1 EP 20171562 A EP20171562 A EP 20171562A EP 3741473 A1 EP3741473 A1 EP 3741473A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- borehole
- nozzle
- suction
- drilling dust
- suction nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 11
- 239000000428 dust Substances 0.000 claims abstract description 63
- 238000005553 drilling Methods 0.000 claims abstract description 62
- 238000007664 blowing Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000003570 air Substances 0.000 description 38
- 238000011161 development Methods 0.000 description 14
- 230000018109 developmental process Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/021—Cleaning pipe ends or pipe fittings, e.g. before soldering
Definitions
- the invention relates to a device for cleaning a borehole and a method for cleaning a borehole by means of the device and an arrangement with the device according to the invention and a borehole in an object.
- the document DE 20 2010 010 848 U1 shows an automatic drilling machine with a drilling dust removal unit, with occurring drilling dust being sucked off by means of the drilling dust removal unit or, in the case of less deep boreholes, being blown out or flushed out.
- the invention is based on the object of creating a device, a method and an arrangement by means of which a well cleaning is improved.
- the invention provides a device for cleaning boreholes according to claim 1 and a method for cleaning a borehole by means of the device according to claim 12 and an arrangement with a borehole in an object and the device according to claim 16.
- Advantageous further developments of the invention are specified in subclaims 2 to 11 and 13 to 15.
- a device for cleaning a borehole is provided with an intake channel, with a filter element, with a pump and with an outlet channel, the pump having an intake side and an outlet side, the intake channel being connected to the filter element for a flow connection, wherein the filter element is connected to the suction side of the pump for a flow connection, the outlet side of the pump being connected to the outlet channel for a flow connection, wherein the suction channel has at least one suction nozzle for sucking in drilling dust from the borehole and wherein the outlet channel has at least one blowing nozzle for whirling up of drilling dust in the borehole.
- the attachment of the anchor systems can be relevant for approval.
- Relevant for approval in this context means that the anchor system - consisting of Dowels, screws / nuts / subsurface (standardized concrete, bricks and the like) - and also the production and cleaning of a borehole are precisely documented.
- the setting of the anchor including the creation of the borehole and the cleaning of the borehole, must be carried out in the order and to the extent described in the regulation. Only then is the required safety for people and the environment ensured by correctly attached components, for example cantilevered balconies made of metal structures.
- a gas for example air, can be driven into the borehole under pressure.
- the invention prevents the dust from escaping from the borehole both into the environment and onto the operator during the process of conventional borehole cleaning.
- borehole cleaning can be carried out much more effectively with the device according to the invention, with a hand-operated pump, for example, by significantly fewer pumping movements than with conventional devices, and with electrically operated pumps much faster than with known devices.
- both air is blown into the borehole by means of the blower nozzle to thereby stir up the drilling dust in the borehole, and at the same time air is sucked out of the borehole and fed back to the pump via a filter, a closed circuit or almost closed circuit is achieved Circuit provided for the air.
- This can prevent drilling dust from escaping into the environment.
- the cleaning of the borehole can be done much more thoroughly than is the case with conventional devices.
- the borehole is either exclusively blown out, for example by blowing in compressed air, or the borehole is exclusively sucked out, for example by attaching a vacuum cleaner.
- the device according to the invention combines the injection of air into the borehole and the suction of air from the borehole. This means that cleaning can be carried out particularly thoroughly and efficiently at the same time.
- the device is made of light material, such as plastic, for example, so that the weight of the device is low and handling is made easier.
- the device is preferably dimensioned such that it is suitable for manual operation.
- the pump can be a manual, electrical, hydraulic or pneumatic pump, the pump being operable continuously or discontinuously. If the device is an embodiment in which the pump requires electricity, a battery or an accumulator can be provided, or mains operation via a power cable can be provided.
- the pump is a double-stroke pump, in which air is sucked in and blown out at the same time in one stroke, or an electric pump.
- boreholes are to be understood as meaning holes which are to be provided with dowels, especially plastic dowels and chemical dowels, for example two-component mortar.
- dowels especially plastic dowels and chemical dowels, for example two-component mortar.
- Such holes are drilled in concrete or brick, for example.
- the drill holes are usually designed as blind holes in which drilling dust collects during drilling.
- the drilling dust can be removed from the boreholes by means of the device according to the invention at least to the extent that components can be attached correctly and with a corresponding degree of security.
- the device according to the invention can be used to reliably meet approval regulations when setting dowels.
- the filter element is based on a sieve effect, a mass inertia effect, an interception effect or a diffusion effect, so that the drilling dust can be removed from an air flow circulating through the device.
- Drilling dust or other preferably loose materials with a small particle size, in particular particle size smaller than 50 ⁇ m, can be removed from boreholes by means of the device without the drilling dust or other, for example loose, materials being released into an environment outside the boreholes.
- the blow nozzle is designed to be pushed into the borehole.
- the outside diameter of the blow nozzle can be matched to the inside diameter of the borehole.
- the blow nozzle is designed to be smaller in diameter than the respective ones, at least in the area of a flow outlet cleaning drill holes, so that the blower nozzle can be used for a large number of larger-sized drill holes.
- the device according to the invention can have several blowing nozzles and several suction nozzles, for example in order to clean several boreholes at the same time.
- the suction nozzle is designed to be placed on a surface of an object in which the borehole is located.
- the diameter of the suction nozzle is larger than the respective boreholes to be cleaned, so that the suction nozzle can be used for a large number of smaller boreholes.
- the suction nozzle can be provided with a circumferential elastic seal so that it can be placed onto the surface of the object in a sealing manner.
- blowing nozzle is arranged offset with respect to the suction nozzle at least during operation of the device along an outflow and inflow direction of the device.
- the blower nozzle protrudes into the borehole during a cleaning process of a borehole by means of a device, while the suction nozzle stands up on the surface around the borehole, offset from the blower nozzle along the outflow and inflow direction of the device.
- the suction nozzle protrudes into the borehole to be cleaned, while the blowing nozzle stands on the surface around the borehole.
- the blow nozzle or the suction nozzle stands on the surface around the borehole, while the suction nozzle or the blow nozzle does not protrude into the borehole.
- blower nozzle is completely surrounded by the suction nozzle in the radial direction to the outflow direction and / or the inflow direction of the device.
- the blower nozzle is arranged centrally, viewed over a cross section of the suction nozzle, and protrudes out of the suction nozzle along the outflow direction and / or inflow direction of the device.
- the central arrangement allows an operator handling can be facilitated with regard to accuracy of the blow nozzle in the respective borehole.
- the suction nozzle is designed to be flexible at a free end in order to adapt to a surface of an object that surrounds a borehole.
- the suction nozzle when it is placed on the surface, the suction nozzle adapts to this, even if the device is pressed obliquely onto the surface. Even if it is placed at an angle, the suction nozzle is sealed off from the surface and drilling dust is prevented from escaping.
- the suction nozzle has a seal at the free end for contact with the surface.
- the seal which can run around the suction nozzle, the borehole can be almost completely sealed off from the environment, so that virtually no or no drilling dust escapes into a space surrounding the device while the device is in use.
- the negative pressure used by the pump can also be used entirely to extract drilling dust.
- blower nozzle is flexible at a free end.
- the blower nozzle adapts to the course of the borehole when it is pushed into the borehole, for example when the device is applied at an angle to the longitudinal extension of the borehole and the blower nozzle is pushed into the borehole.
- the free end of the blow nozzle is chamfered in order not to hinder the discharge of a gas when standing at the bottom of a borehole.
- the blow nozzle cannot be beveled at the free end and instead has, for example, slots from which a gas, in particular the air flow, emerges during the use of the device and whirls up the drilling dust.
- the blower nozzle is designed to be perforated at the free end, so that the blower nozzle is on a bottom of the borehole during use of the device can stand up and the gas, in particular the air flow, emerges from the holes during the use of the device and whirls up the drilling dust.
- the suction nozzle is mounted so as to be displaceable in the axial direction relative to the blower nozzle and / or is deformable so that the blower nozzle can be positioned adapted to a depth of the borehole.
- the blower nozzle is rigidly attached to the device, whereas the suction nozzle is mounted so as to be displaceable relative to the blower nozzle along the outflow and inflow direction of the device, that is, in the axial direction.
- the suction nozzle can preferably be prestressed by means of a spring.
- the suction nozzle can for example be designed at least in sections in the shape of an accordion, so that it folds together at least in sections when the blow nozzle is pushed into the borehole in the axial direction of the device.
- suction nozzle is rigid
- blower nozzle is mounted so as to be displaceable in the axial direction relative to the suction nozzle.
- the filter element has a filter housing, a filter insert and a service flap in the filter housing for removing residues from the filter insert.
- both coarse drilling dust which is deposited in front of the filter insert, can be removed from the filter element via the service flap, and the filter insert, which absorbs fine drilling dust and separates it from the air flow, can be replaced.
- the device is particularly advantageous to use the device as an at least almost closed system, so that the whirling up and suction of the drilling dust are carried out as alternating or simultaneous steps and almost no or no drilling dust from the borehole is released into the environment arranged around the device.
- it can be a closed air circuit.
- the pump for generating the air flow is operated manually or electrically.
- the pump sucks in air which has already been filtered by means of the filter element and compresses it so that it can subsequently be passed into the borehole via the outlet channel and the blow nozzle of the device that closes the outlet channel.
- the compressed air stream is blown into the borehole by means of the device, creates an overpressure relative to the ambient pressure in the borehole and swirls up the drilling dust located in the borehole.
- the pump already sucks in filtered air by means of the filter element and thus generates a negative pressure upstream of the pump. This also creates a negative pressure at the suction nozzle arranged at the end of the suction channel.
- the drilling dust whirled up by the compressed air flow introduced is sucked in by the suction nozzle and filtered from the air flow by means of the filter element, the filtered air flow being sucked in by the pump.
- the pump preferably sucks in almost no or no ambient air that is located outside the device and the borehole, but only the compressed air flow introduced into the borehole, including drilling dust.
- the device extracts the drilling dust from this air flow including drilling dust by means of the filter element and introduces it back into the borehole via the pump in order to achieve an at least approximately closed circuit.
- an arrangement having a borehole in an object and a device for cleaning the borehole, the blowing nozzle being arranged in the borehole and the suction nozzle being pressed against a surface of the object around the borehole.
- the object in which the borehole is arranged is a building wall to which components are attached by means of dowels and screws.
- Fig. 1 shows a schematic representation of a device 1 according to the invention for cleaning a borehole 50, see Fig. 2 , in a sectional view.
- the device 1 has a suction channel 10 with a suction nozzle 100.
- the suction nozzle 100 is connected to the suction channel 10 so that there is a flow connection between the suction nozzle 100 and the suction channel 10, and has a seal 102 at a free end.
- the suction channel 10 leads to a filter element 12 and is consequently in flow connection with the filter element 12.
- the filter element 12 is connected via a further section of the suction channel 10, alternatively also directly, to a pump 14 for a flow connection, the pump 14 being connected to the suction side Filter element 12 is connected so that the pump 14 draws in filtered air.
- the device 1 has an outlet channel 16 with a blowing nozzle 160, the outlet channel 16 leading from the pump 14 to the blowing nozzle 160.
- the pump 14 is connected on the outlet side to the outlet channel 16.
- the blow nozzle 160 is connected to the outlet channel 16, is thus in flow connection with the outlet channel 16, and is designed to be beveled at a free end.
- the blowing nozzle 160 of the outlet channel 16 is surrounded by the suction nozzle 100 in the radial direction with respect to an outflow direction SA and an inflow direction SE, the blowing nozzle 160 being arranged in the radial direction in the center of the suction nozzle 100.
- blow nozzle 160 As long as the device 1 is not in use, a free end of the blow nozzle 160 is flush with a free end of the suction nozzle 100 formed by the seal 102.
- the blow nozzle 160 can also protrude axially from the suction nozzle 100 in order to allow the blow nozzle to be inserted 160 to facilitate in a borehole.
- the suction nozzle 100 is mounted displaceably relative to the blow nozzle 160 in the outflow direction SA and in the inflow direction SE.
- the suction nozzle 100 is pretensioned by means of a spring 104 in such a way that, as long as the device 1 is not used, the seal 102 is held at the same height as the free end of the blowing nozzle 160 along the outflow and inflow directions SE, SA, but in the Fig. 1 shown state is held.
- the suction nozzle 100 can be pushed relative to the blow nozzle 160 with compression of the spring 104 in the inflow direction SE of the device 1, so that the Blowing nozzle 160 then protrudes relative to the suction nozzle 100.
- the representation of the Fig. 1 is schematic and only serves to explain the functional principle and the individual components of the device 1.
- Fig. 2 shows a schematic representation of an arrangement with a borehole 50 in an object 5, for example a building wall, and with the device 1 according to the invention for cleaning the borehole 50 from drilling dust.
- the device 1 of Fig. 1 is positioned in the extension of a main direction of extent of the borehole 50 during operation, so that the outflow direction SA and the inflow direction SE of the device 1 are aligned with the main direction of extent of the borehole 50.
- the blow nozzle 160 is pushed into the borehole 50 so far that the beveled end of the blow nozzle 160 rests on a bottom of the borehole 50.
- a diameter of the blow nozzle 160 is smaller than a diameter of the borehole 50, so that drilling dust to be removed can be conveyed out of the borehole 50 around the blow nozzle 160.
- the nozzle 160 is tapered so that air can exit although the end rests on the bottom of the borehole 50.
- the suction nozzle 100 is pushed back relative to the blow nozzle 160 in the inflow direction SE of the device 1 under compression of the spring 104 and stands on a surface 52 of the element 5.
- the seal 102 is pressed onto the surface 52 by means of the spring 104 and provides a seal with respect to an environment arranged around the device 1 and the element 5.
- the device 1 In order to clean the borehole 50, the device 1 is placed in the region of the borehole 50 on the object 5, for example on a building wall. The device 1 is then moved along the outflow direction SA of the device 1 and the blow nozzle 160 is thereby pushed into the borehole 50. The spring 104 is compressed and the suction nozzle 100 is displaced relative to the blowing nozzle 160 along the inflow direction SE. The seal 102 of the suction nozzle 100 is pressed onto the surface 52 of the element 5.
- the device 1 can be put into operation.
- the pump 14 generates an overpressure on the outlet side and generates an air flow which is introduced into the borehole 50 via the outlet channel 16 and via the blow nozzle 160.
- the pump By introducing the air flow and creating an overpressure in the borehole, the is closed removing drilling dust whirled up.
- the pump also generates a vacuum on the suction side at the same time. The whirled-up drilling dust and air flow are sucked in through the suction nozzle 100, the suction channel 10 and the filter element 12.
- An interface between the surface 52 of the element 5 and the device 1 is sealed in that the seal 102 is pressed onto the surface 52 around the borehole 50 by means of the pretensioned spring 104.
- the object 5 and a user who presses the device 1 with the blow nozzle 160 into the borehole 50 serve as an abutment for absorbing the forces acting on the spring 104.
- the drilling dust whirled up by the air flow flows to the pump 14 through the filter element 12 so that the drilling dust remains at least almost completely in a filter insert of the filter element 12, which can be cleaned by the user after using the device 1.
- the filtered air flow penetrates to the pump 14, is compressed and blown back into the borehole 50.
- a cleaning of the borehole 50 thus takes place via a closed circuit which is formed by the device 1 and the element 5, in particular by the borehole 50 and the surface 52.
- An air flow generated by the device 1 is both blown into the borehole 50 by means of the device 1 and sucked out of it again after the drilling dust has been whirled up.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
Die Erfindung betrifft eine Vorrichtung zum Reinigen von Bohrlöchern (50) mit einem Ansaugkanal (10), mit einem Filterelement (12), mit einer Pumpe (14) und mit einem Auslasskanal (16), wobei die Pumpe eine Ansaugseite und eine Auslassseite aufweist, der Ansaugkanal mit dem Filterelement für eine Strömungsverbindung verbunden ist, das Filterelement mit der Ansaugseite der Pumpe für eine Strömungsverbindung verbunden ist, die Auslassseite der Pumpe mit dem Auslasskanal für eine Strömungsverbindung verbunden ist, der Ansaugkanal zumindest eine Saugdüse (100) zum Ansaugen von Bohrstaub aus einem Bohrloch aufweist und der Auslasskanal zumindest eine Blasdüse (160) zum Aufwirbeln von Bohrstaub in einem Bohrloch aufweist.The invention relates to a device for cleaning boreholes (50) with an intake channel (10), with a filter element (12), with a pump (14) and with an outlet channel (16), the pump having an intake side and an outlet side, the suction channel is connected to the filter element for a flow connection, the filter element is connected to the suction side of the pump for a flow connection, the outlet side of the pump is connected to the outlet channel for a flow connection, the suction channel has at least one suction nozzle (100) for sucking in drilling dust a borehole and the outlet channel has at least one blow nozzle (160) for whirling up drilling dust in a borehole.
Description
Die Erfindung betrifft eine Vorrichtung zum Reinigen eines Bohrlochs sowie ein Verfahren zum Reinigen eines Bohrlochs mittels der Vorrichtung und eine Anordnung mit der erfindungsgemäßen Vorrichtung und einem Bohrloch in einem Gegenstand.The invention relates to a device for cleaning a borehole and a method for cleaning a borehole by means of the device and an arrangement with the device according to the invention and a borehole in an object.
Das Dokument
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung, ein Verfahren und eine Anordnung zu schaffen, mittels derer eine Bohrlochreinigung verbessert wird.The invention is based on the object of creating a device, a method and an arrangement by means of which a well cleaning is improved.
Zur Lösung der Aufgabe ist erfindungsgemäß eine Vorrichtung zum Reinigen von Bohrlöchern gemäß Anspruch 1 sowie ein Verfahren zum Reinigen eines Bohrlochs mittels der Vorrichtung gemäß Anspruch 12 und eine Anordnung mit einem Bohrloch in einem Gegenstand und der Vorrichtung gemäß Anspruch 16 vorgesehen. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen 2 bis 11 sowie 13 bis 15 angegeben.To achieve the object, the invention provides a device for cleaning boreholes according to
Gemäß der Erfindung ist eine Vorrichtung zum Reinigen eines Bohrlochs mit einem Ansaugkanal, mit einem Filterelement, mit einer Pumpe und mit einem Auslasskanal vorgesehen, wobei die Pumpe eine Ansaugseite und eine Auslassseite aufweist, wobei der Ansaugkanal mit dem Filterelement für eine Strömungsverbindung verbunden ist, wobei das Filterelement mit der Ansaugseite der Pumpe für eine Strömungsverbindung verbunden ist, wobei die Auslassseite der Pumpe mit dem Auslasskanal für eine Strömungsverbindung verbunden ist, wobei der Ansaugkanal zumindest eine Saugdüse zum Ansaugen von Bohrstaub aus dem Bohrloch aufweist und wobei der Auslasskanal zumindest eine Blasdüse zum Aufwirbeln von Bohrstaub in dem Bohrloch aufweist.According to the invention a device for cleaning a borehole is provided with an intake channel, with a filter element, with a pump and with an outlet channel, the pump having an intake side and an outlet side, the intake channel being connected to the filter element for a flow connection, wherein the filter element is connected to the suction side of the pump for a flow connection, the outlet side of the pump being connected to the outlet channel for a flow connection, wherein the suction channel has at least one suction nozzle for sucking in drilling dust from the borehole and wherein the outlet channel has at least one blowing nozzle for whirling up of drilling dust in the borehole.
Bei modernen Dübelsystemen kann die Anbringung der Dübelsysteme zulassungsrelevant sein. Zulassungsrelevant bedeutet in diesem Kontext, dass das Dübelsystem - bestehend aus Dübel, Schraube/ Mutter / Untergrund (genormter Beton, Ziegel und dergleichen) - und auch das Herstellen und die Reinigung eines Bohrlochs exakt dokumentiert sind. Das Setzen des Dübels einschließlich des Herstellens des Bohrlochs und des Reinigens des Bohrlochs muss in der in der Vorschrift beschriebenen Reihenfolge und in dem beschriebenen Umfang durchgeführt werden. Erst dann ist die geforderte Sicherheit für Mensch und Umwelt durch korrekt befestigte Bauteile, beispielsweise freitragende Balkone aus Metallkonstruktionen, gegeben. Für die Bohrlochreinigung kann ein Gas, beispielsweise Luft, unter Druck in das Bohrloch eingetrieben werden.With modern anchor systems, the attachment of the anchor systems can be relevant for approval. Relevant for approval in this context means that the anchor system - consisting of Dowels, screws / nuts / subsurface (standardized concrete, bricks and the like) - and also the production and cleaning of a borehole are precisely documented. The setting of the anchor, including the creation of the borehole and the cleaning of the borehole, must be carried out in the order and to the extent described in the regulation. Only then is the required safety for people and the environment ensured by correctly attached components, for example cantilevered balconies made of metal structures. For cleaning the borehole, a gas, for example air, can be driven into the borehole under pressure.
Mit der Erfindung wird das Austreten des Staubes aus dem Bohrloch sowohl in die Umgebung als auch auf den Bediener beim Vorgang der herkömmlichen Bohrlochreinigung vermieden. Darüber hinaus kann eine Bohrlochreinigung mit der erfindungsgemäßen Vorrichtung wesentlich effektiver durchgeführt werden, bei einer handbetätigten Pumpe beispielsweise durch wesentlich weniger Pumpbewegungen als bei konventionellen Vorrichtungen und bei elektrisch betriebenen Pumpen wesentlich schneller als bei bekannten Vorrichtungen.The invention prevents the dust from escaping from the borehole both into the environment and onto the operator during the process of conventional borehole cleaning. In addition, borehole cleaning can be carried out much more effectively with the device according to the invention, with a hand-operated pump, for example, by significantly fewer pumping movements than with conventional devices, and with electrically operated pumps much faster than with known devices.
Eine Verschmutzung der Baustelle, eine Belastung der Umwelt durch Staub sowie auch eine Belastung eines Bedieners durch aus dem Bohrloch austretenden Staub kann durch die Erfindung damit vollständig oder zumindest nahezu vollständig vermieden werden. Vor allem die Erleichterung für den Bediener stellt sicher, dass dieser die Bohrlochreinigung tatsächlich vornimmt und nicht lediglich halbherzig oder gar nicht ausführt. Das Risiko für den Bediener bei Leistungsansprüchen in Haftung genommen zu werden, wird dadurch vollständig vermieden.Pollution of the construction site, pollution of the environment by dust and also pollution of an operator by dust emerging from the borehole can thus be completely or at least almost completely avoided by the invention. Above all, the relief for the operator ensures that he actually carries out the drill hole cleaning and does not only do it half-heartedly or not at all. This completely avoids the risk of the operator being held liable for performance claims.
Indem mit der erfindungsgemäßen Vorrichtung sowohl Luft in das Bohrloch mittels der Blasdüse eingeblasen wird, um dadurch den Bohrstaub in dem Bohrloch aufzuwirbeln, und gleichzeitig Luft aus dem Bohrloch angesaugt und über einen Filter wieder zu der Pumpe geführt wird, wird ein geschlossener Kreislauf oder nahezu geschlossener Kreislauf für die Luft bereitgestellt. Dadurch kann vermieden werden, dass Bohrstaub in die Umgebung austritt. Die Reinigung des Bohrlochs kann wesentlich gründlicher erfolgen als dies bei konventionellen Vorrichtungen der Fall ist. Bei konventionellen Vorrichtungen wird das Bohrloch entweder ausschließlich ausgeblasen, beispielsweise durch Einblasen von Druckluft oder das Bohrloch wird ausschließlich ausgesaugt, beispielsweise durch Ansetzen eines Staubsaugers. Die erfindungsgemäße Vorrichtung kombiniert das Einblasen von Luft in das Bohrloch und das Absaugen von Luft aus dem Bohrloch. Dadurch kann die Reinigung besonders gründlich und gleichzeitig effizient erfolgen.With the device according to the invention both air is blown into the borehole by means of the blower nozzle to thereby stir up the drilling dust in the borehole, and at the same time air is sucked out of the borehole and fed back to the pump via a filter, a closed circuit or almost closed circuit is achieved Circuit provided for the air. This can prevent drilling dust from escaping into the environment. The cleaning of the borehole can be done much more thoroughly than is the case with conventional devices. In conventional devices, the borehole is either exclusively blown out, for example by blowing in compressed air, or the borehole is exclusively sucked out, for example by attaching a vacuum cleaner. The device according to the invention combines the injection of air into the borehole and the suction of air from the borehole. This means that cleaning can be carried out particularly thoroughly and efficiently at the same time.
Die Vorrichtung ist in einer bevorzugten Ausgestaltung aus leichtem Material hergestellt, wie beispielsweise Kunststoff, so dass das Gewicht der Vorrichtung gering ist und eine Handhabung erleichtert wird. Bevorzugt ist die Vorrichtung so dimensioniert, dass sie sich für einen Handbetrieb eignet.In a preferred embodiment, the device is made of light material, such as plastic, for example, so that the weight of the device is low and handling is made easier. The device is preferably dimensioned such that it is suitable for manual operation.
Die Pumpe kann eine manuelle, elektrische, hydraulische oder pneumatische Pumpe sein, wobei die Pumpe kontinuierlich oder diskontinuierlich betreibbar ist. Sofern es sich um eine Ausgestaltung der Vorrichtung handelt, bei welcher die Pumpe Strom benötigt, kann eine Batterie oder ein Akkumulator vorgesehen sein oder es kann ein Netzbetrieb über ein Stromkabel vorgesehen sein. Beispielsweise handelt es sich bei der Pumpe um eine Doppelhubpumpe, bei der also in einem Hub gleichzeitig Luft angesaugt und ausgeblasen wird, oder um eine elektrische Pumpe.The pump can be a manual, electrical, hydraulic or pneumatic pump, the pump being operable continuously or discontinuously. If the device is an embodiment in which the pump requires electricity, a battery or an accumulator can be provided, or mains operation via a power cable can be provided. For example, the pump is a double-stroke pump, in which air is sucked in and blown out at the same time in one stroke, or an electric pump.
Unter Bohrlöchern sind vorliegend Löcher zu verstehen, die mit Dübeln, speziell Kunststoffdübeln und chemischen Dübeln, beispielsweise zwei-Komponenten-Mörtel, zu versehen sind. Solche Löcher werden beispielsweise in Beton oder Ziegel gebohrt. Die Bohrlöcher sind in der Regel als Sacklöcher ausgebildet, in denen sich beim Bohren Bohrstaub sammelt. Der Bohrstaub kann mittels der erfindungsgemäßen Vorrichtung zumindest soweit aus den Bohrlöchern entfernt werden, dass Bauteile korrekt und mit einer entsprechenden Sicherheit befestigt werden können. Speziell können mit der erfindungsgemäßen Vorrichtung Zulassungsvorschriften beim Setzen von Dübeln zuverlässig erfüllt werden.In the present case, boreholes are to be understood as meaning holes which are to be provided with dowels, especially plastic dowels and chemical dowels, for example two-component mortar. Such holes are drilled in concrete or brick, for example. The drill holes are usually designed as blind holes in which drilling dust collects during drilling. The drilling dust can be removed from the boreholes by means of the device according to the invention at least to the extent that components can be attached correctly and with a corresponding degree of security. In particular, the device according to the invention can be used to reliably meet approval regulations when setting dowels.
In Ausgestaltungen basiert das Filterelement auf einem Siebeffekt, einem Massenträgheitseffekt, einem Abfangeffekt oder einem Diffusionseffekt, so dass einem durch die Vorrichtung zirkulierenden Luftstrom der Bohrstaub entzogen werden kann.In embodiments, the filter element is based on a sieve effect, a mass inertia effect, an interception effect or a diffusion effect, so that the drilling dust can be removed from an air flow circulating through the device.
Besonders vorteilhaft können Bohrstaub oder sonstige vorzugsweise lose Materialien mit geringer Partikelgröße, insbesondere Partikelgröße kleiner 50 µm, aus Bohrlöchern mittels der Vorrichtung entfernt werden, ohne dass der Bohrstaub oder die sonstigen, beispielsweise losen Materialien in eine Umgebung außerhalb der Bohrlöcher abgegeben werden.Drilling dust or other preferably loose materials with a small particle size, in particular particle size smaller than 50 μm, can be removed from boreholes by means of the device without the drilling dust or other, for example loose, materials being released into an environment outside the boreholes.
In Weiterbildung der Erfindung ist vorgesehen, dass die Blasdüse zum Einschieben in das Bohrloch ausgebildet ist. Der Außendurchmesser der Blasdüse kann hierbei auf den Innendurchmesser des Bohrlochs abgestimmt sein.In a further development of the invention it is provided that the blow nozzle is designed to be pushed into the borehole. The outside diameter of the blow nozzle can be matched to the inside diameter of the borehole.
In bevorzugten Ausgestaltungen ist die Blasdüse zumindest im Bereich eines Strömungsausgangs in ihrem Durchmesser kleiner ausgestaltet als die jeweiligen zu reinigenden Bohrlöcher, so dass die Blasdüse für eine Vielzahl an größer dimensionierten Bohrlöchern benutzbar ist.In preferred refinements, the blow nozzle is designed to be smaller in diameter than the respective ones, at least in the area of a flow outlet cleaning drill holes, so that the blower nozzle can be used for a large number of larger-sized drill holes.
Die erfindungsgemäße Vorrichtung kann mehrere Blasdüsen und mehrere Saugdüsen aufweisen, um beispielsweise mehrere Bohrlöcher gleichzeitig zu Reinigen.The device according to the invention can have several blowing nozzles and several suction nozzles, for example in order to clean several boreholes at the same time.
In Weiterbildung der Erfindung ist vorgesehen, dass die Saugdüse zum Aufsetzen auf eine Oberfläche eines Gegenstands, in dem sich das Bohrloch befindet, ausgebildet ist.In a further development of the invention it is provided that the suction nozzle is designed to be placed on a surface of an object in which the borehole is located.
In bevorzugten Ausgestaltungen ist die Saugdüse zumindest im Bereich eines Strömungseingangs in ihrem Durchmesser größer ausgestaltet als die jeweiligen zu reinigenden Bohrlöcher, so dass die Saugdüse für eine Vielzahl an kleiner dimensionierten Bohrlöchern benutzbar ist. Die Saugdüse kann mit einer umlaufenden elastischen Dichtung versehen sein, damit sie dichtend auf die Oberfläche des Gegenstands aufgesetzt werden kann.In preferred refinements, the diameter of the suction nozzle, at least in the area of a flow inlet, is larger than the respective boreholes to be cleaned, so that the suction nozzle can be used for a large number of smaller boreholes. The suction nozzle can be provided with a circumferential elastic seal so that it can be placed onto the surface of the object in a sealing manner.
In Weiterbildung der Erfindung ist vorgesehen, dass die Blasdüse gegenüber der Saugdüse zumindest während eines Betriebs der Vorrichtung entlang einer Aus- und Einströmrichtung der Vorrichtung versetzt angeordnet ist.In a further development of the invention it is provided that the blowing nozzle is arranged offset with respect to the suction nozzle at least during operation of the device along an outflow and inflow direction of the device.
In bevorzugten Ausgestaltungen ragt die Blasdüse während eines Reinigungsvorgangs eines Bohrloches mittels Vorrichtung in das Bohrloch hinein, während die Saugdüse entlang der Aus- und Einströmrichtung der Vorrichtung versetzt zu der Blasdüse auf der Oberfläche um das Bohrloch herum aufsteht.In preferred refinements, the blower nozzle protrudes into the borehole during a cleaning process of a borehole by means of a device, while the suction nozzle stands up on the surface around the borehole, offset from the blower nozzle along the outflow and inflow direction of the device.
In weiteren Ausgestaltungen ragt die Saugdüse in das zu reinigende Bohrloch hinein, während die Blasdüse auf der Oberfläche um das Bohrloch herum aufsteht. In noch weiteren Ausgestaltungen steht die Blasdüse oder die Saugdüse auf der Oberfläche um das Bohrloch herum auf, während die Saugdüse oder die Blasdüse nicht in das Bohrloch hineinragt.In further refinements, the suction nozzle protrudes into the borehole to be cleaned, while the blowing nozzle stands on the surface around the borehole. In still further refinements, the blow nozzle or the suction nozzle stands on the surface around the borehole, while the suction nozzle or the blow nozzle does not protrude into the borehole.
In Weiterbildung der Erfindung ist vorgesehen, dass die Blasdüse in radialer Richtung zu der Ausströmrichtung und/oder der Einströmrichtung der Vorrichtung vollständig von der Saugdüse umgeben ist.In a further development of the invention it is provided that the blower nozzle is completely surrounded by the suction nozzle in the radial direction to the outflow direction and / or the inflow direction of the device.
In bevorzugten Ausgestaltungen ist die Blasdüse über einen Querschnitt der Saugdüse betrachtet mittig angeordnet und ragt entlang der Ausströmrichtung und/oder Einströmrichtung der Vorrichtung aus der Saugdüse heraus. Durch die mittige Anordnung kann einem Bediener die Handhabung hinsichtlich einer Treffsicherheit der Blasdüse in das jeweilige Bohrloch erleichtert werden.In preferred refinements, the blower nozzle is arranged centrally, viewed over a cross section of the suction nozzle, and protrudes out of the suction nozzle along the outflow direction and / or inflow direction of the device. The central arrangement allows an operator handling can be facilitated with regard to accuracy of the blow nozzle in the respective borehole.
In Weiterbildung der Erfindung ist vorgesehen, dass die Saugdüse an einem freien Ende flexibel ausgebildet ist, um sich an eine Oberfläche eines Gegenstands anzupassen, die ein Bohrloch umgibt.In a development of the invention it is provided that the suction nozzle is designed to be flexible at a free end in order to adapt to a surface of an object that surrounds a borehole.
Besonders bevorzugt passt sich die Saugdüse beim Aufsetzen auf die Oberfläche eben dieser an, auch wenn die Vorrichtung schräg auf die Oberfläche aufgedrückt wird. Auch bei schrägem Aufsetzen ist die Saugdüse dadurch gegenüber der Oberfläche abgedichtet und es wird verhindert, dass Bohrstaub austritt.Particularly preferably, when it is placed on the surface, the suction nozzle adapts to this, even if the device is pressed obliquely onto the surface. Even if it is placed at an angle, the suction nozzle is sealed off from the surface and drilling dust is prevented from escaping.
In Weiterbildung der Erfindung ist vorgesehen, dass die Saugdüse an dem freien Ende eine Dichtung zur Anlage an die Oberfläche aufweist.In a further development of the invention it is provided that the suction nozzle has a seal at the free end for contact with the surface.
Mittels der Dichtung, die um die Saugdüse umlaufen kann, ist eine nahezu vollständige Abdichtung des Bohrlochs gegenüber der Umgebung möglich, so dass während der Anwendung der Vorrichtung nahezu kein bis kein Bohrstaub in einen die Vorrichtung umgebenden Raum austritt. Auch kann der von der Pumpe genutzte Unterdruck vollständig zum Absaugen von Bohrstaub genutzt werden.By means of the seal, which can run around the suction nozzle, the borehole can be almost completely sealed off from the environment, so that virtually no or no drilling dust escapes into a space surrounding the device while the device is in use. The negative pressure used by the pump can also be used entirely to extract drilling dust.
In Weiterbildung der Erfindung ist vorgesehen, dass die Blasdüse an einem freien Ende flexibel ausgebildet ist.In a further development of the invention it is provided that the blower nozzle is flexible at a free end.
Besonders bevorzugt passt sich die Blasdüse beim Einschieben in das Bohrloch einem Verlauf des Bohrlochs an, wenn die Vorrichtung beispielsweise schräg zur Längserstreckung des Bohrlochs angesetzt und die Blasdüse in das Bohrloch eingeschoben wird.Particularly preferably, the blower nozzle adapts to the course of the borehole when it is pushed into the borehole, for example when the device is applied at an angle to the longitudinal extension of the borehole and the blower nozzle is pushed into the borehole.
In Weiterbildung der Erfindung ist vorgesehen, dass die Blasdüse an dem freien Ende abgeschrägt ausgebildet ist, um beim Aufstehen am Boden eines Bohrlochs ein Auslassen eines Gases nicht zu behindern.In a further development of the invention, it is provided that the free end of the blow nozzle is chamfered in order not to hinder the discharge of a gas when standing at the bottom of a borehole.
In alternativen Ausgestaltungen kann die Blasdüse an dem freien Ende nicht abgeschrägt sein und weist beispielsweise stattdessen Schlitze auf, aus denen ein Gas, insbesondere der Luftstrom, während der Anwendung der Vorrichtung austritt und den Bohrstaub aufwirbelt. In weiteren Ausgestaltungen ist die Blasdüse an dem freien Ende perforiert ausgebildet, so dass die Blasdüse während der Anwendung der Vorrichtung auf einem Boden des Bohrlochs aufstehen kann und das Gas, insbesondere der Luftstrom, während der Anwendung der Vorrichtung aus den Löchern austritt und den Bohrstaub aufwirbelt.In alternative embodiments, the blow nozzle cannot be beveled at the free end and instead has, for example, slots from which a gas, in particular the air flow, emerges during the use of the device and whirls up the drilling dust. In further refinements, the blower nozzle is designed to be perforated at the free end, so that the blower nozzle is on a bottom of the borehole during use of the device can stand up and the gas, in particular the air flow, emerges from the holes during the use of the device and whirls up the drilling dust.
In Weiterbildung der Erfindung ist vorgesehen, dass die Saugdüse relativ zu der Blasdüse in axialer Richtung verschiebbar gelagert ist und/oder verformbar ist, so dass die Blasdüse angepasst an eine Tiefe des Bohrlochs positioniert werden kann.In a further development of the invention it is provided that the suction nozzle is mounted so as to be displaceable in the axial direction relative to the blower nozzle and / or is deformable so that the blower nozzle can be positioned adapted to a depth of the borehole.
In einer Ausgestaltung ist die Blasdüse starr an der Vorrichtung befestigt, wohingegen die Saugdüse entlang der Aus- und Einströmrichtung der Vorrichtung, also in axialer Richtung, relativ zu der Blasdüse verschiebbar gelagert ist. Die Saugdüse kann bevorzugt mittels einer Feder vorgespannt sein. In einer weiteren Ausgestaltung kann die Saugdüse beispielsweise zumindest abschnittsweise ziehharmonikaförmig ausgebildet sein, so dass sie sich beim Einschieben der Blasdüse in das Bohrloch in axialer Richtung der Vorrichtung zumindest abschnittsweise zusammenfaltet.In one embodiment, the blower nozzle is rigidly attached to the device, whereas the suction nozzle is mounted so as to be displaceable relative to the blower nozzle along the outflow and inflow direction of the device, that is, in the axial direction. The suction nozzle can preferably be prestressed by means of a spring. In a further embodiment, the suction nozzle can for example be designed at least in sections in the shape of an accordion, so that it folds together at least in sections when the blow nozzle is pushed into the borehole in the axial direction of the device.
In einer weiteren Ausgestaltung kann beispielsweise vorgesehen sein, dass die Saugdüse starr ausgebildet ist, wohingegen die Blasdüse in axialer Richtung relativ zu der Saugdüse verschiebbar gelagert ist.In a further embodiment it can be provided, for example, that the suction nozzle is rigid, whereas the blower nozzle is mounted so as to be displaceable in the axial direction relative to the suction nozzle.
In Weiterbildung der Erfindung ist vorgesehen, dass das Filterelement ein Filtergehäuse, einen Filtereinsatz und eine Serviceklappe in dem Filtergehäuse zum Entfernen von Rückständen aus dem Filtereinsatz aufweist.In a further development of the invention it is provided that the filter element has a filter housing, a filter insert and a service flap in the filter housing for removing residues from the filter insert.
In bevorzugten Ausgestaltungen ist über die Serviceklappe sowohl grober Bohrstaub aus dem Filterelement entfernbar, der sich vor dem Filtereinsatz ablagert, als auch der Filtereinsatz austauschbar, der feinen Bohrstaub aufnimmt und aus dem Luftstrom abscheidet.In preferred embodiments, both coarse drilling dust, which is deposited in front of the filter insert, can be removed from the filter element via the service flap, and the filter insert, which absorbs fine drilling dust and separates it from the air flow, can be replaced.
Gemäß der Erfindung ist ein Verfahren zum Reinigen eines Bohrlochs mittels einer Vorrichtung vorgesehen, aufweisend folgende Schritte:
- Ansetzen der Vorrichtung im Bereich des Bohrlochs,
- Aufwirbeln von sich in dem Bohrloch befindenden Bohrstaub mittels der Vorrichtung,
- Absaugen des aufgewirbelten Bohrstaubs aus dem Bohrloch mittels der Vorrichtung.
- Positioning the device in the area of the borehole,
- Whirling up drilling dust located in the borehole by means of the device,
- Sucking up the fluidized drilling dust from the borehole by means of the device.
Besonders vorteilhaft ist die Anwendung der Vorrichtung als zumindest nahezu geschlossenes System ausgeführt, so dass das Aufwirbeln und Absaugen des Bohrstaubs als alternierende oder zeitgleiche Schritte ausgeführt sind und nahezu kein bis kein Bohrstaub aus dem Bohrloch in die um die Vorrichtung herum angeordnete Umgebung abgegeben wird. Mit anderen Worten kann es sich um einen geschlossenen Luftkreislauf handeln.It is particularly advantageous to use the device as an at least almost closed system, so that the whirling up and suction of the drilling dust are carried out as alternating or simultaneous steps and almost no or no drilling dust from the borehole is released into the environment arranged around the device. In other words, it can be a closed air circuit.
In Weiterbildung der Erfindung ist vorgesehen, dass beim Ansetzen der Vorrichtung die Blasdüse in das Bohrloch hineingeschoben wird und die Saugdüse an eine Oberfläche um das Bohrloch herum angedrückt wird.In a further development of the invention it is provided that when the device is attached, the blow nozzle is pushed into the borehole and the suction nozzle is pressed against a surface around the borehole.
Besonders vorteilhaft ist durch Andrücken der Saugdüse an die Oberfläche um das Bohrloch herum gewährleistet, dass nahezu kein bis kein Bohrstaub aus dem Bohrloch in die Umgebung abgegeben wird. Somit ist verhindert, dass ein Bediener dem Bohrstaub aus dem Bohrloch während der Anwendung der Vorrichtung ausgesetzt ist.By pressing the suction nozzle against the surface around the borehole, it is particularly advantageous to ensure that almost no or no drilling dust is released from the borehole into the environment. An operator is thus prevented from being exposed to the drilling dust from the borehole while the device is being used.
In Weiterbildung der Erfindung ist vorgesehen, dass das Aufwirbeln des Bohrstaubs aus dem Bohrloch mittels der Vorrichtung folgende Schritte aufweist:
- Erzeugung eines Überdrucks in Form eines Luftstroms mittels der Pumpe,
- Auslassen des Luftstroms in das Bohrloch über den Auslasskanal und die sich an den Auslasskanal anschließende Blasdüse,
- Aufwirbeln des Bohrstaubs durch den eingeleiteten Luftstrom und Erzeugen eines Gemisches aus Bohrstaub und Luft.
- Generating an overpressure in the form of an air flow by means of the pump,
- Letting out the air flow into the borehole via the outlet channel and the blow nozzle connected to the outlet channel,
- Whirling up the drilling dust through the air flow introduced and generating a mixture of drilling dust and air.
In Ausgestaltungen findet ein Betrieb der Pumpe zum Erzeugen des Luftstroms händisch oder elektrisch statt. In einer bevorzugten Ausgestaltung saugt die Pumpe bereits mittels des Filterelements gefilterte Luft an und verdichtet diese, damit sie darauffolgend über den Auslasskanal und die den Auslasskanal abschließende Blasdüse der Vorrichtung in das Bohrloch geleitet werden kann. Der verdichtete Luftstrom wird mittels der Vorrichtung in das Bohrloch eingeblasen, sorgt für einen Überdruck relativ zum Umgebungsdruck in dem Bohrloch und wirbelt den sich in dem Bohrloch befindenden Bohrstaub auf.In refinements, the pump for generating the air flow is operated manually or electrically. In a preferred embodiment, the pump sucks in air which has already been filtered by means of the filter element and compresses it so that it can subsequently be passed into the borehole via the outlet channel and the blow nozzle of the device that closes the outlet channel. The compressed air stream is blown into the borehole by means of the device, creates an overpressure relative to the ambient pressure in the borehole and swirls up the drilling dust located in the borehole.
In Weiterbildung der Erfindung ist vorgesehen, dass das Absaugen des Bohrstaubs aus dem Bohrloch mittels der Vorrichtung folgende Schritte aufweist:
- Erzeugen eines Unterdrucks mittels der Pumpe,
- Ansaugen des Gemisches aus Bohrstaub und Luft durch die Saugdüse und den sich an die Saugdüse anschließenden Ansaugkanal,
- Führen des Gemisches aus Bohrstaub und Luft zu dem Filterelement,
- Filtern des Gemisches aus Bohrstaub und Luft, so dass der Bohrstaub in dem Filterelement verbleibt,
- Ansaugen der gefilterten Luft stromaufwärts des Filterelements mittels der Pumpe.
- Generating a negative pressure by means of the pump,
- Sucking in the mixture of drilling dust and air through the suction nozzle and the suction channel connected to the suction nozzle,
- Feeding the mixture of drilling dust and air to the filter element,
- Filtering the mixture of drilling dust and air so that the drilling dust remains in the filter element,
- Sucking in the filtered air upstream of the filter element by means of the pump.
In einer bevorzugten Ausgestaltung saugt die Pumpe bereits mittels des Filterelements gefilterte Luft an und erzeugt somit einen Unterdruck stromaufwärts der Pumpe. Es entsteht somit auch ein Unterdruck an der am Ende des Ansaugkanals angeordneten Saugdüse. Der durch den eingeleiteten, verdichteten Luftstrom aufgewirbelte Bohrstaub wird durch die Saugdüse angesaugt und mittels des Filterelements aus dem Luftstrom gefiltert, wobei der gefilterte Luftstrom durch die Pumpe angesaugt wird.In a preferred embodiment, the pump already sucks in filtered air by means of the filter element and thus generates a negative pressure upstream of the pump. This also creates a negative pressure at the suction nozzle arranged at the end of the suction channel. The drilling dust whirled up by the compressed air flow introduced is sucked in by the suction nozzle and filtered from the air flow by means of the filter element, the filtered air flow being sucked in by the pump.
Bevorzugt saugt die Pumpe nahezu keine bis keine Umgebungsluft an, die sich außerhalb der Vorrichtung und des Bohrlochs befindet, sondern ausschließlich den in das Bohrloch eingeleiteten verdichteten Luftstrom samt Bohrstaub. Diesem Luftstrom samt Bohrstaub entzieht die Vorrichtung mittels des Filterelements den Bohrstaub und leitet ihn über die Pumpe wieder in das Bohrloch ein, um somit ein zumindest annähernd geschlossenen Kreislauf zu realisieren.The pump preferably sucks in almost no or no ambient air that is located outside the device and the borehole, but only the compressed air flow introduced into the borehole, including drilling dust. The device extracts the drilling dust from this air flow including drilling dust by means of the filter element and introduces it back into the borehole via the pump in order to achieve an at least approximately closed circuit.
Gemäß der Erfindung ist eine Anordnung mit einem Bohrloch in einem Gegenstand und einer Vorrichtung zum Reinigen des Bohrlochs vorgesehen, wobei die Blasdüse in dem Bohrloch angeordnet ist und die Saugdüse an eine Oberfläche des Gegenstands um das Bohrloch herum angedrückt ist.According to the invention there is provided an arrangement having a borehole in an object and a device for cleaning the borehole, the blowing nozzle being arranged in the borehole and the suction nozzle being pressed against a surface of the object around the borehole.
In Ausgestaltungen ist der Gegenstand, in dem das Bohrloch angeordnet ist, eine Gebäudewand, an der Bauteile mittels Dübel und Schrauben befestigt werden. Besonders in Betracht kommen Gegenstände aus Materialien, bei denen beim Bohren sehr feine Späne oder Staub entstehen, beispielsweise Beton, Ziegel, Holz oder Stein.In embodiments, the object in which the borehole is arranged is a building wall to which components are attached by means of dowels and screws. Objects made of materials that produce very fine chips or dust during drilling, for example concrete, brick, wood or stone, are particularly suitable.
Weitere Vorteile und Aspekte der Erfindung ergeben sich aus den Ansprüchen und aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung, das nachfolgend anhand der Figuren erläutert ist. Dabei zeigt:
- Fig. 1
- eine schematische Darstellung einer erfindungsgemäßen Vorrichtung zum Reinigen eines Bohrlochs in einer Schnittansicht und
- Fig. 2
- eine schematische Darstellung einer Anordnung mit einem Bohrloch in einem Element und der erfindungsgemäßen Vorrichtung zum Reinigen des Bohrlochs.
- Fig. 1
- a schematic representation of a device according to the invention for cleaning a borehole in a sectional view and
- Fig. 2
- a schematic representation of an arrangement with a borehole in an element and the inventive device for cleaning the borehole.
Der Ansaugkanal 10 führt zu einem Filterelement 12 und steht infolgedessen in Strömungsverbindung mit dem Filterelement 12. Das Filterelement 12 ist über einen weiteren Abschnitt des Ansaugkanals 10, alternativ auch unmittelbar, mit einer Pumpe 14 für eine Strömungsverbindung verbunden, wobei die Pumpe 14 ansaugseitig mit dem Filterelement 12 verbunden ist, so dass die Pumpe 14 gefilterte Luft ansaugt.The
Die Vorrichtung 1 weist einen Auslasskanal 16 mit einer Blasdüse 160 auf, wobei der Auslasskanal 16 von der Pumpe 14 bis zur Blasdüse 160 führt. Die Pumpe 14 ist auslassseitig mit dem Auslasskanal 16 verbunden. Die Blasdüse 160 ist mit dem Auslasskanal 16 verbunden, steht somit in Strömungsverbindung mit dem Auslasskanal 16, und ist an einem freien Ende abgeschrägt ausgebildet. Die Blasdüse 160 des Auslasskanals 16 ist in radialer Richtung zu einer Ausströmungsrichtung SA und einer Einströmrichtung SE von der Saugdüse 100 umgeben, wobei die Blasdüse 160 in radialer Richtung mittig zu der Saugdüse 100 angeordnet ist. Ein freies Ende der Blasdüse 160 ist, solange die Vorrichtung 1 nicht verwendet wird, bündig mit einem durch die Dichtung 102 gebildeten freien Ende der Saugdüse 100. Alternativ kann die Blasdüse 160 gegenüber der Saugdüse 100 auch in axialer Richtung vorstehen, um das Einführen der Blasdüse 160 in ein Bohrloch zu erleichtern.The
Die Saugdüse 100 ist relativ zu der Blasdüse 160 in Ausströmrichtung SA und in der Einströmrichtung SE verschiebbar gelagert. Mittels einer Feder 104 ist die Saugdüse 100 insofern vorgespannt, dass die Dichtung 102, solange die Vorrichtung 1 nicht verwendet wird, entlang der Aus- und Einströmrichtung SE, SA auf gleicher Höhe mit dem freien Ende der Blasdüse 160 gehalten wird, aber in dem in
Die Blasdüse 160 ist in das Bohrloch 50 so weit eingeschoben, dass die Blasdüse 160 mit dem abgeschrägten Ende auf einem Boden des Bohrlochs 50 aufsteht. Ein Durchmesser der Blasdüse 160 ist kleiner als ein Durchmesser des Bohrlochs 50, so dass zu entfernender Bohrstaub um die Blasdüse 160 herum aus dem Bohrloch 50 befördert werden kann. Die Blasdüse 160 ist abgeschrägt, so dass Luft austreten kann, obwohl das Ende auf dem Boden des Bohrlochs 50 aufsteht.The
Die Saugdüse 100 ist relativ zu der Blasdüse 160 in Einströmrichtung SE der Vorrichtung 1 unter Kompression der Feder 104 zurückgeschoben und steht auf einer Oberfläche 52 des Elements 5 auf. Die Dichtung 102 wird mittels der Feder 104 auf die Oberfläche 52 gedrückt und sorgt für eine Abdichtung gegenüber einer um die Vorrichtung 1 und das Element 5 angeordneten Umgebung.The
Um das Bohrloch 50 zu reinigen, wird die Vorrichtung 1 im Bereich des Bohrlochs 50 auf den Gegenstand 5, beispielsweise auf eine Gebäudewand, aufgesetzt. Die Vorrichtung 1 wird dann entlang der Ausströmrichtung SA der Vorrichtung 1 bewegt und die Blasdüse 160 wird dadurch in das Bohrloch 50 hineingeschoben. Dabei wird die Feder 104 komprimiert und die Saugdüse 100 relativ zu der Blasdüse 160 entlang der Einströmrichtung SE verschoben. Die Dichtung 102 der Saugdüse 100 wird auf die Oberfläche 52 des Elements 5 gedrückt.In order to clean the borehole 50, the
Sobald die Blasdüse 160 in dem Bohrloch 50 positioniert ist oder wenn sich die Blasdüse 160, siehe
Dabei ist eine Schnittstelle zwischen der Oberfläche 52 des Elements 5 und der Vorrichtung 1 dadurch abgedichtet, dass die Dichtung 102 mittels der vorgespannten Feder 104 um das Bohrloch 50 herum auf die Oberfläche 52 aufgedrückt wird. Als Widerlager zur Aufnahme von wirkenden Kräften der Feder 104 dient in diesem Fall der Gegenstand 5 sowie ein Anwender, der die Vorrichtung 1 mit der Blasdüse 160 in das Bohrloch 50 drückt.An interface between the
Der durch den Luftstrom aufgewirbelte Bohrstaub strömt zu der Pumpe 14 durch das Filterelement 12 hindurch, so dass der Bohrstaub zumindest nahezu vollständig in einem Filtereinsatz des Filterelements 12 verbleibt, der vom Anwender nach Gebrauch der Vorrichtung 1 gereinigt werden kann. Zu der Pumpe 14 dringt der gefilterte Luftstrom durch, wird verdichtet und wieder in das Bohrloch 50 eingeblasen. Eine Reinigung des Bohrlochs 50 geschieht somit über einen geschlossenen Kreislauf, der durch die Vorrichtung 1 und das Element 5, insbesondere durch das Bohrloch 50 und die Oberfläche 52, gebildet ist. Ein durch die Vorrichtung 1 erzeugter Luftstrom wird mittels der Vorrichtung 1 sowohl in das Bohrloch 50 eingeblasen als auch aus diesem nach Aufwirbeln des Bohrstaubs wieder abgesaugt.The drilling dust whirled up by the air flow flows to the
Claims (16)
die Blasdüse (160) zum Einschieben in das Bohrloch (50) ausgebildet ist, wobei insbesondere der Durchmesser der Blasdüse (160) auf den Durchmesser des Bohrlochs (50) abgestimmt ist.Device (1) according to claim 1, characterized in that
the blow nozzle (160) is designed to be pushed into the borehole (50), in particular the diameter of the blow nozzle (160) being matched to the diameter of the borehole (50).
die Saugdüse (100) zum Aufsetzen auf eine Oberfläche (52) eines Gegenstands (5), in dem sich das Bohrloch (50) befindet, ausgebildet ist, insbesondere durch Vorsehen einer um die Saugdüse (100) umlaufenden elastischen Dichtung.Device (1) according to claim 1 or 2, characterized in that
the suction nozzle (100) is designed to be placed on a surface (52) of an object (5) in which the borehole (50) is located, in particular by providing an elastic seal surrounding the suction nozzle (100).
die Blasdüse (160) gegenüber der Saugdüse (100) zumindest während eines Betriebs der Vorrichtung (1) entlang einer Ausströmrichtung (SA) und/oder einer Einströmrichtung (SE) der Vorrichtung (1) versetzt angeordnet ist.Device (1) according to at least one of the preceding claims, characterized in that
the blowing nozzle (160) is arranged offset with respect to the suction nozzle (100) at least during operation of the device (1) along an outflow direction (SA) and / or an inflow direction (SE) of the device (1).
die Blasdüse (160) radial zu der Ausströmrichtung und/oder der Einströmrichtung (SE) der Vorrichtung (1) vollständig von der Saugdüse (100) umgeben ist.Device (1) according to claim 4, characterized in that
the blowing nozzle (160) is completely surrounded by the suction nozzle (100) radially to the outflow direction and / or the inflow direction (SE) of the device (1).
die Saugdüse (100) an einem freien Ende flexibel ausgebildet ist, um sich an eine Oberfläche (52) anzupassen, die ein Bohrloch (50) umgibt.Device (1) according to at least one of the preceding claims, characterized in that
the suction nozzle (100) is designed to be flexible at a free end in order to adapt to a surface (52) which surrounds a borehole (50).
die Blasdüse (160) an einem freien Ende flexibel ausgebildet ist.Device (1) according to at least one of the preceding claims, characterized in that
the blow nozzle (160) is flexible at a free end.
die Blasdüse (160) an dem freien Ende abgeschrägt ausgebildet ist, um beim Aufstehen am Boden eines Bohrlochs (50) ein Auslassen eines Gases nicht zu behindern.Device (1) according to claim 8, characterized in that
the blow nozzle (160) is tapered at the free end in order not to hinder the discharge of a gas when standing at the bottom of a borehole (50).
die Saugdüse (100) relativ zu der Blasdüse (160) in axialer Richtung verschiebbar gelagert ist und/oder verformbar ist, so dass die Blasdüse (160) angepasst an eine Tiefe des Bohrlochs (50) positioniert werden kann.Device (1) according to at least one of the preceding claims, characterized in that
the suction nozzle (100) is mounted and / or deformable relative to the blowing nozzle (160) so that it can be displaced in the axial direction, so that the blowing nozzle (160) can be positioned in a manner adapted to a depth of the borehole (50).
das Filterelement (12) ein Filtergehäuse, einen Filtereinsatz und eine Serviceklappe in dem Filtergehäuse zum Entfernen von Rückständen aus dem Filtereinsatz aufweist.Device (1) according to at least one of the preceding claims, characterized in that
the filter element (12) has a filter housing, a filter insert and a service flap in the filter housing for removing residues from the filter insert.
beim Ansetzen der Vorrichtung (1) die Blasdüse (160) in das Bohrloch (50) hineingeschoben wird und die Saugdüse (100) an eine Oberfläche (52) um das Bohrloch (50) herum angedrückt wird.The method of claim 12 wherein
when the device (1) is applied, the blow nozzle (160) is pushed into the borehole (50) and the suction nozzle (100) is pressed against a surface (52) around the borehole (50).
das Aufwirbeln des Bohrstaubs aus dem Bohrloch (50) mittels der Vorrichtung (1) folgende Schritte aufweist:
whirling up the drilling dust from the borehole (50) by means of the device (1) comprises the following steps:
das Absaugen des Bohrstaubs aus dem Bohrloch (50) mittels der Vorrichtung (1) folgende Schritte aufweist:
the suction of the drilling dust from the borehole (50) by means of the device (1) comprises the following steps:
die Blasdüse (160) in oder vor dem Bohrloch (50) angeordnet ist und die Saugdüse (100) an eine Oberfläche (52) des Gegenstands (5) um das Bohrloch (50) herum angedrückt ist.Arrangement with a borehole (50) in an object (5) and a device (1) according to at least one of claims 1 to 11 for cleaning the borehole (50), characterized in that
the blowing nozzle (160) is arranged in or in front of the borehole (50) and the suction nozzle (100) is pressed against a surface (52) of the object (5) around the borehole (50).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102019207568.1A DE102019207568B4 (en) | 2019-05-23 | 2019-05-23 | Wellbore cleaning apparatus, method and arrangement |
Publications (2)
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EP3741473A1 true EP3741473A1 (en) | 2020-11-25 |
EP3741473B1 EP3741473B1 (en) | 2023-06-07 |
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EP20171562.0A Active EP3741473B1 (en) | 2019-05-23 | 2020-04-27 | Borehole cleaning device, method and assembly |
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DE (1) | DE102019207568B4 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113352396A (en) * | 2021-06-02 | 2021-09-07 | 山东华美建材有限公司 | Glass fiber ceiling puncher and processing technology of glass fiber ceiling |
CN113385485A (en) * | 2020-12-21 | 2021-09-14 | 芜湖晟汇信息科技有限公司 | Pneumatic scrap iron removing device and method for brake master pump cylinder body |
CN114523331A (en) * | 2022-04-02 | 2022-05-24 | 济南新艺粉末冶金有限公司 | Powder metallurgy sprocket processing equipment |
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CN113385485A (en) * | 2020-12-21 | 2021-09-14 | 芜湖晟汇信息科技有限公司 | Pneumatic scrap iron removing device and method for brake master pump cylinder body |
CN113352396A (en) * | 2021-06-02 | 2021-09-07 | 山东华美建材有限公司 | Glass fiber ceiling puncher and processing technology of glass fiber ceiling |
CN113352396B (en) * | 2021-06-02 | 2022-09-02 | 山东华美建材有限公司 | Glass fiber ceiling puncher and processing technology of glass fiber ceiling |
CN114523331A (en) * | 2022-04-02 | 2022-05-24 | 济南新艺粉末冶金有限公司 | Powder metallurgy sprocket processing equipment |
CN114523331B (en) * | 2022-04-02 | 2023-09-01 | 济南新艺粉末冶金有限公司 | Powder metallurgy sprocket processing equipment |
Also Published As
Publication number | Publication date |
---|---|
DE102019207568B4 (en) | 2021-09-23 |
DE102019207568A1 (en) | 2020-11-26 |
EP3741473B1 (en) | 2023-06-07 |
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