Cleaning apparatus for a breech of artillery with scraper

Abstract

The disclosed content relates to a multi-stage chamber cleaning device equipped with a scraper, comprising: a rotating shaft axially coupled to an electric motor and having a plurality of stepped portions; and a scraper having a plurality of link arms, installed on a stepped portion adjacent to the end side of the rotating shaft and rotating by the rotating shaft, wherein the scraper comprises a plurality of elastic support blocks having a guide hole and a bend seating portion, radially spaced apart and allocated at a preset angle with respect to the rotating shaft, and tiltably coupled to one side of the tip of the link arm; and a bend cotton detachably mounted on the bend seating portion of the elastic support block, forming a bend trajectory to come into contact with the inner surface of the multi-stage chamber and scraping off foreign matter. and includes an elastic ring having an annular ring structure corresponding to the bend trajectory, wherein one end portion slides guided by the guide hole and the other end portion is fixed to the lower part of the bend seating portion; and when the bend trajectory is reduced, the one end portion of the elastic ring overlaps the lower part of the other end portion and is configured to contract.

Description

Technology Field

[0001] The contents disclosed in this specification relate to a multi-stage chamber cleaning device equipped with a scraper, and more specifically, to a cleaning device in which the scraper responds without driving to changes in the diameter of the multi-stage chamber and scrapes away foreign matter scraped by a brush and non-woven fabric, and can completely pull out foreign matter scraped by a plurality of link devices on an external leaf spring and stably guide the leaf spring when it contracts and expands, and the vibration and resonance of the rotation axis are suppressed so as to stably maintain the movement of the brush and frictional force on the inner surface of the chamber. Background Technology

[0002] Unless otherwise indicated in this specification, the contents described in this identification item are not prior art for the claims of this application, and are not recognized as prior art simply because they are described in this identification item.

[0003] Generally, a chamber cleaning device is a device inserted into the chamber to remove foreign matter after firing a projectile.

[0004] Although the required chamber volume varies depending on the caliber of the gun and the type of projectile, the inner surface of the chamber extending from the chamber entrance to the muzzle is structurally manufactured as a multi-stage chamber structure including a predetermined parallel section and a certain section of inclined tapered section.

[0005] In particular, since the innermost part of the multi-stage chamber is directly connected to the gun barrel, there is a need for technology capable of cleaning not only the chamber but also the entire gun barrel.

[0006] FIG. 1 is a schematic diagram illustrating the structure of the inner surface leading to the general multi-stage chamber and the barrel connection. The multi-stage chamber (B) has a plurality of different inclined inner surfaces formed at preset angles, and has a plurality of tapered or inclined structures and is directly connected to the barrel.

[0007] The interior of such a multi-stage chamber is contaminated with combustion residues of the propellant charge and foreign substances remaining as shell components after firing the gun.

[0008] The above foreign substances include carbon fouling, metallic salts containing copper, and acidic residues. Such foreign substances can cause damage to the chamber and reduce durability, as well as cause jamming when loading a shell, resulting in inaccurate loading and potentially causing problems when firing a shell.

[0009] For example, carbon fouling remaining in the chamber is in the form of soot and carbon lumps generated from the incomplete combustion of nitrocellulose, the main component of the propellant charge, and if left unattended, it adheres to the chamber and rifling, increasing friction and adversely affecting the flight trajectory of the projectile.

[0010] As another example, metallic salts or acidic residues remaining in the chamber are potassium, sulfates, carbonates, and sulfur compounds produced during the chemical combustion reactions of propellant and gunpowder; because these components absorb moisture or are relatively reactive to moisture, they accelerate corrosion inside the chamber.

[0011] Therefore, in order to solve the aforementioned problem, research on techniques for cleaning multi-stage chambers is being attempted from various angles.

[0012] In this regard, a multi-stage muzzle chamber cleaning device disclosed in Korean Patent No. 10-1391415, which was developed and patented by the applicant, is well known.

[0013] The multi-stage muzzle chamber cleaning device disclosed in the aforementioned prior art document comprises: a rotating member having a motor that rotates by receiving power from the power supply unit formed therein; a cleaning member comprising a rotating body that rotates in conjunction with the motor, an inclined cleaning part that is inclinedly coupled to the front outer circumference of the rotating body, and a parallel cleaning part whose two ends are coupled parallelly to the rear outer circumference of the rotating body; a handle member formed at the rear of the rotating member and whose length is adjusted in a telescopic manner; and a stopper installed between the inclined case and the parallel case.

[0014] The aforementioned multi-stage muzzle chamber cleaning device is structurally complex and significantly disadvantageous for maintenance work because the cleaning components and rotating rollers are manufactured and assembled via a stopper, and there is a problem in that the durability of the parts and the cleaning quality deteriorate when resonance and vibration occur in the rotating shaft.

[0016] As another prior art, a cleaning device for a powder chamber is disclosed in Korean Patent Publication No. 10-2002-0034131.

[0017] The chamber cleaning device disclosed in the aforementioned prior art document comprises: a body in which a battery and a motor are housed; a handle formed extending from the rear portion of the body and equipped with a switch for controlling the operation of the motor; and a brush portion formed at the front portion of the body and rotating by receiving the rotational force of the motor.

[0018] The aforementioned chamber cleaning device is advantageous for cleaning the inside of the chamber as the cleaning solution is sprayed by centrifugal force during the process of the brush rotation, but it has technical limitations in cleaning foreign substances from a multi-stage chamber structure.

[0019] Accordingly, the applicant is continuing multifaceted research to completely clean foreign substances contaminated in the chamber area, as well as address the technical limitations that existing prior art has failed to resolve. Prior art literature

[0021] Korean Patent Registration No. 10-1391415 (Published May 2, 2014) Korean Patent Publication No. 10-2002-0034131 (Published May 8, 2002) The problem to be solved

[0022] The disclosed invention aims to provide a multi-stage chamber cleaning device equipped with a scraper that can effectively scrape or pull out contaminated foreign matter and clean it by stably providing elastic frictional force in response to changes in the diameter of multi-stage chambers of different structures.

[0023] In addition, the disclosed invention aims to provide a multi-stage chamber cleaning device equipped with a scraper, wherein the brush motion can be automatically adjusted when the brush module enters a plurality of different inclined inner surfaces formed in the multi-stage chamber, and the movement and frictional action of the brush can be very effectively achieved even if resonance and vibration occur at the rotation axis.

[0024] In addition, the disclosed invention aims to provide a multi-stage chamber cleaning device equipped with a scraper capable of stably guiding the movement of a brush during the process in which a brush module rotating together with a rotation axis enters and moves stepwise along the inner surfaces of a multi-stage chamber to clean and remove foreign matter.

[0026] The disclosed content is not limited to the technical problems described above, and it is evident that other technical problems may be derived from the following description. means of solving the problem

[0028] One feature according to one embodiment of the disclosed content comprises: a rotating shaft having a plurality of stepped portions; and a scraper having a plurality of link arms, which is installed on the stepped portion adjacent to the end side of the rotating shaft and rotates by the rotating shaft, wherein the scraper comprises a plurality of elastic support blocks having a guide hole and a bend seating portion, which are radially spaced apart and allocated at a preset angle with respect to the rotating shaft, and which are tiltably coupled to one side of the tip of the link arm; and a bend cotton detachably mounted on the bend seating portion of the elastic support block, which forms a bend trajectory to come into contact with the inner surface of a multi-stage chamber and scrapes off foreign matter. The present invention provides a multi-stage chamber cleaning device comprising a scraper having an elastic ring structure corresponding to a bend trajectory, wherein one end portion slides and guides the guide hole, and the other end portion is fixed to the lower part of the bend seating portion; and wherein, when the bend trajectory is reduced, the one end portion of the elastic ring overlaps with the lower part of the other end portion and contracts.

[0030] Another feature according to one embodiment of the disclosed content is to provide a multi-stage chamber cleaning device having a scraper in which the elastic ring is composed of a plate spring.

[0032] Another feature according to one embodiment of the disclosed content is a multi-stage chamber cleaning device equipped with a scraper, wherein a guide block is installed on the outer side of the elastic ring, and the guide block receives one end of the elastic ring when the bend trajectory is reduced, thereby guiding it so as not to detach.

[0034] Another feature according to one embodiment of the disclosed content is a rotating shaft axially coupled to an electric motor and having a plurality of stepped portions; a scraper comprising a plurality of link arms and a plurality of elastic support blocks radially spaced apart and allocated at a preset angle on the outer side of the stepped portions of the rotating shaft, and an elastic ring that forms a bend trajectory to contact the inner surface of a multi-stage chamber and scrapes off foreign matter by a bend cotton; a first wheel module having a plurality of wheel blocks spaced apart at a preset radial angle, coupled to be slip-able with respect to the rotation of the rotating shaft, and mounted on a first stepped portion of the rotating shaft; a second wheel module having a plurality of wheel blocks spaced apart at a preset radial angle and arranged to be away from the electric motor, coupled to be slip-able with respect to the rotation of the rotating shaft, and mounted on a third stepped portion of the rotating shaft. A multi-stage chamber cleaning device comprising a scraper having a plurality of brush holders spaced apart at a radially predetermined angle, a first brush module positioned between a first wheel module and a second wheel module, rotatably coupled integrally with respect to the rotation of a rotation axis, and mounted on a second stepped portion of the rotation axis; and a pair of elastic members configured in the wheel blocks and brush holders to form a contact force with respect to the inner circumferential surfaces of the chamber.

[0036] Another feature according to one embodiment of the disclosed content is that a second brush module is further configured between the second wheel module and the scraper, and a multi-stage chamber cleaning device is provided having a scraper that is integrally rotatably coupled with the rotation of the rotation axis.

[0038] Another feature according to one embodiment of the disclosed content is that the wheel block and brush holder provide a multi-stage chamber cleaning device having scrapers arranged in three radially directions with respect to the rotation axis. Effects of the invention

[0040] A multi-stage chamber cleaning device equipped with a scraper as disclosed in this specification has the advantage of being able to clean the entire chamber very efficiently by forming a series of dynamic trajectories that elastically respond to different diameter changes of the multi-stage chambers and forming a constant frictional force, wherein a bend cotton-elastic ring mechanism supported by a plurality of link arms is flexibly supported by a plurality of link arms.

[0042] In addition, the multi-stage chamber cleaning device equipped with a scraper as disclosed in this specification has the advantage that when a rotating brush module enters and cleans a plurality of different inclined inner surfaces formed in the multi-stage chamber, the motion of the brush is automatically adjusted to correspond to the angle of inclination of the chamber by means of the tilting and elastic support mechanism of the brush holder and brush mount, thereby allowing the frictional force on the entry into the multi-stage chamber and the inside of the chamber to be maintained at a constant level and allowing foreign substances inside the chamber to be cleaned and removed very effectively.

[0044] In addition, the multi-stage chamber cleaning device equipped with a scraper as disclosed in this specification has the advantage that vibration and resonance occurring on the rotation axis are suppressed and the movement of the rotating brush entering and exiting can be stably guided, as wheel modules that slip about the rotation axis and move linearly along the inclined inner surface inside the chamber perform three-way support and damping functions at the front and rear of the brush module.

[0046] In addition, the multi-stage chamber cleaning device equipped with a scraper as disclosed in this specification has the advantage that, in the event of brush damage or maintenance, it can be easily attached and detached with simple operation via the sliding function of the brush mount, thereby enabling the retention index to be achieved very efficiently.

[0048] Since the disclosed content is naturally exerted by the composition of the described content regardless of whether the inventor is aware of it, the aforementioned effects are merely a few effects based on the described content and should not be recognized as having described all effects that the inventor has grasped or that actually exist.

[0049] In addition, the effects of the disclosed invention should be further understood from the overall description in the specification, and even if not explicitly stated, if a person skilled in the art to which the described content belongs can recognize that such effects exist through this specification, they should be considered as effects described in this specification. Brief explanation of the drawing

[0051] FIG. 1 is a schematic diagram for explaining the structure of the inner surface of a multi-stage chamber leading to the barrel connection part, FIG. 2 is a schematic cross-sectional view illustrating a rotational shaft coupling structure according to an embodiment of the disclosed invention, FIG. 3 is a schematic cross-sectional view illustrating a multi-stage chamber cleaning device equipped with a scraper according to an embodiment of the disclosed invention. FIG. 4 is a cross-sectional view AA illustrating the scraper shown in FIG. 2, FIG. 5a is a partial enlarged view to explain the link arm-elastic support block coupling structure indicated in FIG. 4, FIG. 5b is a partial enlarged view illustrating a single link arm-elastic support block coupling structure according to another embodiment, FIG. 6 schematically illustrates the operating state of a scraper according to one embodiment, FIG. 6a is an operating state diagram having an initial bend trajectory (T1) before entering the multi-stage chamber, FIG. 6b is an operating state diagram having a bend trajectory (T2) that changes during the multi-stage chamber entry process, FIG. 6c is an operating state diagram having a bend trajectory (T3) that changes to enter completely into the chamber manhole section. FIG. 7 is a cross-sectional view of BB' relating to the first wheel module shown in FIG. 3, FIG. 8 is a cross-sectional view of the first brush module shown in FIG. 3, CC' FIG. 9 is a cross-sectional view DD' relating to the second brush module shown in FIG. 3, FIG. 10 is a schematic perspective view illustrating the tilting-sliding operation of a brush holder according to one embodiment of the disclosed invention, FIG. 11 is a schematic cross-sectional view illustrating an operation process moving inside a multi-stage chamber according to an embodiment of the disclosed invention, Specific details for implementing the invention

[0052] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0053] In describing the embodiments of the present invention, specific descriptions of known functions or configurations will be omitted if it is determined that such detailed descriptions could unnecessarily obscure the essence of the invention. Furthermore, the terms described below are defined in consideration of their functions in the embodiments of the present invention, and these definitions may vary depending on the intentions or conventions of the user or operator. Therefore, such definitions should be based on the content throughout this specification.

[0054] The multi-stage chamber scraper of the disclosed content and the cleaning device equipped with the same are applied to a cleaning device capable of cleaning all contaminated foreign matter from the inclined inner surface forming the interior of the multi-stage chamber (B).

[0055] FIG. 2 is a schematic cross-sectional view illustrating a rotating shaft coupling structure according to an embodiment of the disclosed invention, and FIG. 3 is a schematic cross-sectional view illustrating a multi-stage chamber cleaning device equipped with a scraper according to an embodiment of the disclosed invention.

[0056] Referring to FIGS. 2 and FIGS. 3, a scraper according to one embodiment of the disclosed invention includes a rotating shaft (S) that is axially coupled to an electric motor (M) and has a plurality of stepped portions.

[0057] The stepped portion of the above-mentioned rotating shaft (S) is configured such that a first stepped portion (S2) axially coupled to the electric motor (M), a second stepped portion (S2) connected to the end of the first stepped portion (S1) along the axial direction of the electric motor (M), a third stepped portion (S3) connected to the end of the second stepped portion (S2), and a fourth stepped portion (S4) are sequentially formed.

[0058] Although the first step portion (S1) which is axially coupled to the electric motor (M) in the drawing is shown as having a structure in which the diameters of the third step portion and the fourth step portion (S4) formed furthest from the electric motor (M) are each shown as gradually decreasing, the diameters or geometric structures of each step portion can be varied depending on the inner surface structure of the chamber and the cleaning performance requirements, and such variations should be interpreted as being included within the technical scope of the present invention.

[0059] The above-mentioned rotating shaft (S) includes a bushing or bearing (5) configured for non-slip, and may optionally include fixed members (K) coupled to the outer circumference of the shaft for coaxial rotation.

[0060] The above fixed member (K) includes a key that transmits motor rotational force coaxially by means of a rotation axis (S). For example, the key may be configured on one side of the outer circumference of the second stepped portion (S2) and the fourth stepped portion (S4).

[0061] The above electric motor (M) is built into a housing (1) connected to a handle (midoham) and connected to a power supply unit (3), and its operation is controlled by a control unit (5) equipped with a plurality of operating switches.

[0062] Accordingly, the above-mentioned rotating shaft (S) can be selectively driven to rotate repeatedly in a clockwise or counterclockwise direction by operating a worker switch during the chamber foreign matter cleaning process.

[0063] FIG. 4 is a cross-sectional view AA illustrating the scraper shown in FIG. 2, FIG. 5a is a partial enlarged view to explain the link arm-elastic support block coupling structure indicated in FIG. 4, and FIG. 5b is a partial enlarged view to explain a single link arm-elastic support block coupling structure according to another embodiment.

[0064] Referring to FIGS. 4 and 5, a scraper (10) according to one embodiment of the disclosed content is equipped with a plurality of link arms (13) and is installed on a stepped portion (S4) adjacent to the end side of the rotation axis (S) and rotates integrally with the rotation axis (S).

[0065] The above step portion (S4) may be composed of a fourth step portion (S4) formed at the furthest distance from the electric motor (M).

[0066] One side of the above link base (16) is fixed to the link base (16) which is coupled to the outer circumference of the above rotation axis (S).

[0067] In addition, the scraper (10) includes a bend cotton (P) and a plurality of elastic support blocks (12; 12a, 12b, 12c, 12d).

[0068] The above-mentioned bend cotton (P) is detachably mounted on the bend seating portion (18b) of the above-mentioned elastic support block (12; 12a, 12b, 12c, 12d), is installed on the outer side of the elastic ring described later, and forms a bend trajectory (T) to come into contact with the inner surface of the multi-stage chamber (B) and performs the function of scraping off foreign matter.

[0069] The above-mentioned bend cotton (P) includes a fabric or synthetic resin material having a preset frictional force, adsorption force, and elasticity with respect to foreign substances.

[0070] In the present invention, the bend trajectory (T) is formed in various ways during the operation process in which the diameter of the bend cotton (P) installed on the elastic ring (11) is contracted or expanded in correspondence with different inner surfaces of the multi-stage chamber. For example, it should be interpreted that the bend trajectory can be formed in various ways continuously depending on the elastic displacement of the elastic ring as it contracts or expands.

[0071] A plurality of elastic support blocks (12; 12a, 12b, 12c, 12d) according to one embodiment of the disclosed content are provided with a guide hole (18a) and a bend seating portion (18b), are allocated at a preset angle on the outside of the rotation axis (S) and are radially spaced apart, and are tiltably coupled to one side of the tip of the link arm (13).

[0072] Here, the link arm (13) includes a plurality of links that are flexibly connected with respect to at least one center axis (17), and when at least one link is pin-coupled to the link coupling portion (15) of the elastic support block (12a, 12b, 12c or 12d), at least one other link is pin-coupled to the link coupling portion (15) of the link base (16) to enable flexural movement.

[0073] The plurality of elastic support blocks (12; 12a, 12b, 12c, 12d) and link arms (13) can be spaced apart radially at 90-degree intervals with respect to the axis of rotation (S), as shown in FIG. 4.

[0074] The above elastic support blocks (12a, 12b, 12c, 12d) may each be configured to include anti-detachment projections (18c) on both sides of a body (18) in which a guide hole (18a) is formed.

[0075] If the bend cotton is damaged or replacement is required, the worker can remove the bend cotton (P) to the outside of the anti-detachment (18c), and in this process, it is easy to attach and detach using a simple hand tool, which is advantageous for maintenance.

[0076] In another embodiment of the disclosed content, the link arm (13) may be composed of multiple rows of link arms (13a, 13b) taking into account the frictional force and tilt angle of the bend cotton (P) (see FIG. 5b).

[0077] Additionally, a plurality of elastic support blocks (12) and link arms (13) may be spaced apart radially at 120-degree intervals with respect to the link base (16) or rotation axis (S), and such variations should be interpreted as being included in the technical concept of the present invention.

[0079] Meanwhile, a scraper (10) according to one embodiment includes an elastic ring (11) and a guide block (14).

[0080] The elastic ring (11) has a front end (11a) on one side that slides and guides the guide hole (18a), and a front end (11b) on the other side that is fixed to the lower part of the bend seating portion (18b), and has an annular ring structure corresponding to the bend trajectory (T).

[0081] Preferably, the elastic ring (11) is composed of a plate spring having a preset elasticity and is composed of a single ring arrangement, and may be modified into a plurality of ring arrangements depending on the case.

[0082] A guide block (14) according to one embodiment is provided with a guide hole (18a) and a bend seating portion (18b), similar to the elastic support block.

[0083] The guide block (14) is installed spaced apart from the elastic support block (12a) that fixes the other end of the elastic ring, and performs the function of guiding the elastic displacement by receiving the one end (11a) of the elastic ring (11) in the guide hole (18a) so that the one end (11a) of the elastic ring does not detach when the diameter of the bend trajectory (T) is reduced.

[0084] In addition, the guide block (14) performs the function of guiding the elastic displacement of the elastic ring (11) as it spreads through the guide hole (18a) without the one-sided leading edge (11a) of the elastic ring deviating even when the diameter of the bend trajectory (T) is expanded.

[0086] FIG. 6 schematically illustrates the operating state of a scraper according to an embodiment of the disclosed invention, FIG. 6a is an operating state diagram having an initial bend trajectory (T1) before entering a multi-stage chamber, FIG. 6b is an operating state diagram having a bend trajectory (T2) that changes during the process of entering a multi-stage chamber, and FIG. 6c is an operating state diagram having a bend trajectory (T3) that changes to enter completely into the innermost part of the chamber.

[0087] Referring to FIG. 6a, the multi-stage chamber scraper according to the present disclosure operates in such a state that, during initial operation, the elastic support block (12a) shown approximately at the 12 o'clock position in the drawing, the elastic support block (12b) at the 9 o'clock position, the elastic support block (12c) at the 6 o'clock position, the elastic support block (12d) at the 3 o'clock position, and the link arms (13) are arranged radially at 90-degree intervals with respect to the rotation axis (S) or the link base (16).

[0088] In this process, one end portion (11a) and the other end portion (11b) of the elastic ring (11) are both arranged in the bend seating portion (180b) and guide hole (18a) of the elastic support block (12a) shown at the 12 o'clock direction in the drawing, and an initial bend trajectory (T1) is formed where the inner surface of the elastic ring-bend cotton assembly and the multi-stage chamber (B) come into contact.

[0089] Referring to FIG. 6b, during the process of entering and passing through the multi-stage chamber (B) to remove foreign matter and perform cleaning, a bend trajectory (T2) that gradually contracts is formed corresponding to the inner surface of the multi-stage chamber (B) of different diameters.

[0090] For example, the elastic ring (11) undergoes a reduction elastic displacement corresponding to the reduction in diameter of the bend trajectory (T2), and one end portion (11a) of the elastic ring (11) is inserted into the guide hole (18a) of the guide block (14) which is positioned in the first quadrant of the drawing, so that it can slide without detachment.

[0091] In this process, each link arm (13) is deflected within a preset angle range as illustrated, and the bend cotton (P) comes into contact with the inner surface of the multi-stage chamber (B) along with the elastic force of the elastic ring (11), thereby forming a frictional force.

[0092] Referring to FIG. 6c, when entering the innermost part of the multi-stage chamber (B), a further reduced bend trajectory (T3) is formed.

[0093] For example, corresponding to the reduction in diameter of the bend trajectory (T3), the elastic ring (11) causes a greater reduction elastic displacement, and one end portion (11a) of the elastic ring (11) slides through the guide hole (18a) of the guide block (14) positioned in the second quadrant of the drawing and is inserted into the guide hole (18a) of the elastic support block (12b) at the 7 o'clock position, thereby contracting without detachment.

[0094] In this process, each link arm (13) undergoes a greater range of bending as illustrated, and the bend cotton (P) forms a frictional force as it comes into contact with the inner surface of the chamber, together with the elastic force of the elastic ring (11).

[0095] Changes in the bend trajectories (T1, T2, T3) formed by the aforementioned bend cotton (P) and elastic ring (11) occur continuously during the process of cleaning the multi-stage chamber (B), and foreign substances such as carbon deposits or sludge can be adsorbed or scraped outward.

[0096] Accordingly, foreign substances in the multi-stage chamber (B) are cleaned very efficiently by the scraper (10).

[0098] FIG. 7 is a cross-sectional view of BB' relating to the first wheel module shown in FIG. 3.

[0099] Referring to FIG. 7, a first wheel module (20) according to one embodiment of the disclosed invention includes a plurality of wheel blocks (23) that are slidably coupled with the rotation of the rotation axis (S) and spaced apart at a radially preset angle.

[0100] The first wheel module (20) can be installed on the first stepped portion (S1) formed on the rotation axis (S).

[0101] More specifically, the plurality of wheel blocks (23) include a wheel mount (23a) that supports the wheel (25) by a hinge axis (24), and a pair of elastic members (22) that are inserted and installed in the lower part of the wheel mount (23a) and provide elastic force to the wheel mount in an outward direction with respect to the rotation axis (S).

[0102] Here, the first wheel module (20) is formed in a disc shape corresponding to the internal structure of the multi-stage chamber (B) and includes a chamber (21) in which the elastic members (22) are seated and fixed. The chamber (21) is formed spaced apart in three radial directions with respect to the rotation axis (S).

[0103] Accordingly, the wheel mounts (23a, 23b, 23c) are configured to be arranged at three allocated angles of separation, for example, within a 120-degree angle range, to disperse and support the vibration and resonance of the rotating shaft (S) formed within the chamber (B) during chamber cleaning.

[0104] In the manufacturing process, the wheel mounts (23a, 23b, 23c) are configured by pre-setting a radius (R1) from the center of the rotation axis (S) to the hinge axis (24), and it is preferable that the radius (R1) be set so that each wheel (25) elastically contacts the inner surface of the chamber (B) and maintains a linear movement and driving direction by taking into account the elastic displacement section of the elastic members (22).

[0106] A second wheel module (30) according to one embodiment of the disclosed invention is positioned in front of the first wheel module (20) so as to be away from the electric motor (M) and has a plurality of wheel blocks (33) spaced apart at a radially predetermined angle.

[0107] The first wheel module (20) can be installed on a third stepped portion formed on the rotation axis (S).

[0108] The second wheel module (30) can be coupled to be slip-able with respect to the rotation of the rotation axis (S) via a bushing or bearing member.

[0109] Each of the wheel blocks (33) of the second wheel module (30) comprises a wheel mount (23a) that supports the wheel (25) with a hinge axis (24) as described above, a pair of elastic members (32) that are inserted and installed in the lower part of the wheel mount (23a) to resiliently push the wheel mount outward with respect to the rotation axis (S), and a chamber (31) in which the elastic members (32) are seated and fixed, and may have a configuration geometrically identical to the wheel mounts (23a, 23b, 23c) of the first wheel module (20).

[0110] However, considering the inclined surface and tapered structure of the above chamber (B), it is preferable that the radius of the second wheel module (30) extending from the center of the rotation axis (S) to the hinge axis (24) be configured to be less than or equal to the radius (R1) formed in the first wheel module (30).

[0111] Accordingly, the linear movement and driving direction formed by the wheel of the second wheel module (30) during the chamber cleaning process is stably maintained by the elastic force of the elastic members (22).

[0113] Meanwhile, the arrangement configuration of the wheel block (23) of the first wheel module (20) and the wheel block (33) of the second wheel module (30) as described above is not limited to a 120-degree arrangement, but may have a modified embodiment having an arrangement of various angle ranges considering the vibration and resonance of the rotation axis (S), and such modifications should be interpreted as being included in the technical concept of the disclosed content.

[0114] Additionally, the arrangement angle of the wheel blocks (23) of the second wheel module (30) may be configured to have a different angle arrangement with respect to the rotation axis (S) that does not overlap with the arrangement angle of the wheel blocks (23) of the first wheel module (20).

[0115] This means that when the first wheel mount (23a) and wheel block (23) of the first wheel module (20) are positioned facing upward in the drawing during the chamber cleaning process, the first wheel mount (23a) and wheel block (33) of the second wheel module (30) are configured to be positioned within the angle range between the second wheel mount (23b).

[0116] Accordingly, when cleaning the chamber, the vibration and resonance of the rotating shaft (S) coupled to the electric motor (M) are primarily dispersed and supported by the arrangement angle of the wheel block (23) of the first wheel module (20) located close to the electric motor (M), and subsequently dispersed and supported by the configuration of the wheel block (33) of the second wheel module (30) configured to be spaced far from the electric motor (M) and adjacent to the outer end of the rotating shaft (S).

[0117] Here, vibration and resonance of the rotating shaft (S) may occur differently depending on the distance from the shaft coupling point of the electric motor (M).

[0118] According to one embodiment of the disclosed invention, considering the inclination angle formed inside the chamber (B) and the vibration and resonance of the rotation axis (S), the elastic modulus of the elastic member (22) of the first wheel module (20) and the elastic member (32) of the second wheel module (30) described above may be configured differently.

[0119] For example, considering various embodiments, even if the compression elastic modulus of the elastic member (22) of the first wheel module (20) and the compression elastic member (32) of the second wheel module (30) are substantially the same, or if they are relatively smaller or larger, such deformation should be interpreted as being included in the technical concept of the present invention.

[0121] FIG. 8 is a cross-sectional view of the first brush module shown in FIG. 3, CC'.

[0122] Referring to FIG. 8, a first brush module (40) according to one embodiment of the disclosed invention has a plurality of brush holders (60; 60a, 60b, 60c) spaced apart at a radially predetermined angle, is positioned between the first wheel module (20) and the second wheel module (30), and is rotatably coupled integrally with respect to the rotation of the rotation axis (S).

[0123] The first brush module (40) can be installed on the second stepped portion (S2) formed on the rotation axis (S).

[0124] According to an embodiment, the first brush module (40) is installed in a fixed manner using a fixing member (K), such as a key, on a second stepped portion formed on the rotation axis (S), and accordingly, selective rotation and brushing driving are performed in a clockwise or counterclockwise direction by receiving the rotational force of the rotation axis (S) through the switching operation of an operator.

[0125] Preferably, the first brush module (40) has a mounting portion (46) that protrudes in a preset direction from the approximately disc-shaped body, and the brush holders (60; 60a, 60b, 60c) are arranged and allocated in three radial directions with respect to the rotation axis (S).

[0126] The brush holders (60; 60a, 60b, 60c) include a brush mount (43) that supports a brush (45) tiltably by a hinge axis (44), a pair of elastic members (42) that elastically support the brush mount (43) in an outward direction with respect to the rotation axis (S), and a chamber (41) in which the elastic members (42) are seated and fixed.

[0128] FIG. 9 is a cross-sectional view of DD' relating to the second brush module shown in FIG. 3.

[0129] Referring to FIG. 9, a second brush module (50) according to one embodiment of the disclosed invention has a plurality of brush holders (60; 60a, 60b, 60c) spaced apart at a radially preset angle and is configured in front of the second wheel module (30) and spaced far apart from the electric motor (M).

[0130] The second brush module (50) is rotatably coupled to the rotation of the rotation axis (S).

[0131] The second brush module (50) can be installed on the fourth step portion (4) formed on the rotation axis (S).

[0132] The second brush module (50) may be configured geometrically similar to the first brush module (50) described above, and the second brush module (50) has a mounting portion (56) protruding in a preset direction from the approximately disc-shaped body, and the brush holders (60; 60a, 60b, 60c) are configured to be allocated and arranged in three radial directions with respect to the rotation axis (S).

[0133] The brush holders (60; 60a, 60b, 60c) include a brush mount (53) that supports a brush (55) by a hinge axis (54), a pair of elastic members (52) that elastically support the brush mount (53) in an outward direction with respect to the rotation axis (S), and a chamber (51) in which the elastic members (52) are seated and fixed.

[0134] However, considering the inclined surface and tapered structure of the above chamber (B), it is preferable that the operating radius (R3) of the second brush module (50) extending from the center of the rotation axis (S) to the hinge axis (54) be configured to be less than or equal to the operating radius (R2) formed in the first brush module (40).

[0136] FIG. 10 is a schematic perspective view illustrating the tilting-sliding operation of a brush holder according to one embodiment of the disclosed invention.

[0137] A brush mount (43) according to one embodiment of the disclosed invention comprises a bracket (70) having anti-detachment projections (71) formed on the upper part and a hinge shaft (54) formed on the lower part, and a brush body (72) having a brush (45 or 55) and slidably mounted between the anti-detachment projections (71).

[0138] In the event of wear or damage to the brush (45 or 55) during the process of working on the chamber material, the worker can easily attach and detach the brush body (72) in a sliding manner using a simple hand tool, thereby greatly improving work efficiency during maintenance.

[0140] Meanwhile, the hinge axes (44, 54) of the first brush module (40) and the second brush module (50) described above perform a preset tilt axis function during the brush operation process.

[0141] For example, during the chamber cleaning process, a pair of elastic members (42, 52) configured on both sides with respect to each hinge axis (44, 54) independently allow the brush mount (43, 53) to tilt in response to the angle change when the angle inside the chamber changes during chamber cleaning.

[0142] Accordingly, the brushes (45, 55) automatically adjust their brush angles in response to changes in the angle of the inner surface of the chamber that occur independently inside the chamber.

[0143] At this time, the brushes (45, 55) form sequential or continuous frictional force due to the elastic force of each of the pair of elastic members (42, 52).

[0144] Here, it is preferable to set the operating radius (R2) of the first brush module (40) and the operating radius (R3) of the second brush module (50) by taking into account the elastic displacement and elastic modulus of the elastic members (42, 52) and the brush frictional forces required independently or individually for removing foreign substances inside the chamber.

[0146] FIG. 11 is a schematic cross-sectional view illustrating an operation process moving inside a multi-stage chamber according to an embodiment of the disclosed invention.

[0147] Referring to FIG. 11, in the multi-stage chamber cleaning process, the scraper (10) enters the elastic ring (11) on which the bend cotton (P) is installed, and scrapes off foreign matter by relying on preset elastic force and friction force.

[0148] In this process, bend trajectories (T; T1, T2, T3) are continuously formed with diameter reduction or diameter expansion corresponding to the different inner circumference diameters of the multistage chamber (B), and a scraping operation is performed.

[0149] Next, the brush (55) of the second brush module (50) enters the chamber (B).

[0150] The brush mount (53) of the second brush module (50) is tilted to be inclined with respect to the hinge axis (54) in correspondence with the angle of inclination inside the chamber, and the brush (55) rotates by generating friction relying on the elastic force of the elastic member (52).

[0151] At this time, the wheel (35) of the second wheel module (30) that subsequently enters moves within the chamber (B) in a linear motion along the inside of the chamber (B) at the rear of the second brush module (50) in a slip state relative to the rotation of the rotation axis (S).

[0152] During the scraping and cleaning process, the elastic ring (11) with the bend cotton (P) formed at the furthest distance from the electric motor (M) and the second brush module (50) receive a radial rotational moment, and the resonance, vibration, or shaking of the rotation axis (S) applied as a result is supported and damped by a three-way support mechanism in which the wheel (35) of the second wheel module (30) and the elastic member (32) are combined, thereby stably forming the entry path of the second brush module (50).

[0153] Accordingly, the elastic ring (11) and the second brush module (50) equipped with the bend cotton (P) are guided to rotate stably and enter deep inside the chamber.

[0154] Next, the first brush module (40) receives guidance from the second wheel module (30) located at the front, and is stably tilted and entered at the chamber entrance, and is also supported by the first wheel module (20) that enters linearly from the rear and rolls in.

[0155] Ultimately, when the first wheel module (20) fully enters the chamber (B), the chamber rotates together with the rotation axis (S), and a support-damping mechanism is formed by the first wheel module (20) and the second wheel module (20) at the front and rear positions of the brush module that frictionally contacts foreign matter.

[0156] To elaborate, the rotational moment of the elastic ring (11) and the second brush module (50) with the bend cotton (P) installed at the furthest distance from the electric motor (M), and the rotational moment of the first brush module (40) formed at a relatively close distance are dynamically generated, and even if the resonance, vibration, or shaking of the rotation axis (S) occurs significantly as a result, the first wheel module (20) and the second wheel module (30) configured at the front and rear of the wheel module form a support mechanism at various angles and perform support and damping actions, thereby stably maintaining the rotational movement and frictional force of the first brush module (40) and the second brush module (50).

[0158] As described above, in the cleaning device according to various embodiments, when brush modules (40, 50) enter and clean multiple different inclined inner surfaces formed in the multi-stage chamber (B) together with the bend cotton-elastic ring assembly of the rotating scraper, the motion of the brush (45, 55) is automatically adjusted to correspond to the angle of the inclined inner surface of the chamber by means of the tilting and elastic support mechanism of the brush holder (60) and brush mount (43, 53), so that the frictional force inside the multi-stage chamber (B0) can be maintained at a constant level and foreign substances inside the chamber are cleaned and removed very effectively.

[0159] In addition, wheel modules (20, 30) that slide about the rotation axis (S) and move linearly along the inclined inner surface inside the chamber perform three-way support and damping functions at the front and rear of the brush module (40 or 50), thereby suppressing vibration and resonance occurring on the rotation axis (S) and stably guiding the movement of the rotating brush and brush modules (40, 50) into and out.

[0160] In addition, when the brush (45 or 55) is damaged or undergoes maintenance, it can be easily attached and detached with simple operation by means of the sliding function of the brush mount (43, 53), so the retention index is very efficiently maintained.

[0162] Although preferred embodiments of the present invention have been described above with reference to the attached drawings, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all technical concepts of the present invention. Therefore, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application. Accordingly, the embodiments described above should be understood as illustrative in all respects and not restrictive, and the scope of the present invention is defined by the claims set forth below rather than by the detailed description. Furthermore, all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0164] 10: Scraper 20: 1st wheel module 30 : 2nd wheel module 40 : 1st Brush Module 43 : Brush mount of the first brush module 50 : 2nd Brush Module 53 : Brush mount of the second brush module 60, 60a, 60b, 60c: Brush holder

Claims

Claim 1 A rotating shaft coupled to an electric motor and having a plurality of stepped portions; and a plurality of link arms, and a scraper installed on a stepped portion adjacent to the end side of the rotating shaft and rotated by the rotating shaft, wherein the scraper comprises a plurality of elastic support blocks having a guide hole and a bend seating portion, radially spaced apart and allocated at a preset angle with respect to the rotating shaft, and tiltably coupled to one side of the tip of the link arm; and a bend cotton detachably mounted on the bend seating portion of the elastic support block, forming a bend trajectory to come into contact with the inner surface of a multi-stage chamber and scraping off foreign matter. A multi-stage chamber cleaning device equipped with a scraper, comprising: an elastic ring having an annular ring structure corresponding to the bend trajectory, wherein one end portion slides and guides the guide hole, and the other end portion is fixed to the lower part of the bend seating portion; wherein, when the bend trajectory is reduced, the one end portion of the elastic ring overlaps the lower part of the other end portion and is configured to contract. Claim 2 A multi-stage chamber cleaning device having a scraper, characterized in that, in claim 1, the elastic ring is composed of a plate spring. Claim 3 A multi-stage chamber cleaning device having a scraper, characterized in that, in claim 1 or 2, a guide block is installed on the outer side of the elastic ring, and the guide block receives one end of the elastic ring and guides it so as not to detach when the bend trajectory is reduced. Claim 4 delete Claim 5 delete Claim 6 delete

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