Pipe internal foreign matter removal device

Abstract

A device for removing foreign substances from inside a pipe is disclosed. The device for removing foreign substances from inside a pipe according to an embodiment of the present invention comprises: an insertion main body having a structure that is extended by a predetermined length so as to be inserted into and withdrawn from the inside of a pipe to be cleaned; a hook unfolding part mounted on one end of the insertion main body and formed a hook structure by being deployed in a symmetrical or radial manner from one end or both sides of the insertion main body by the operation of a handling control part; and a handling control part mounted on the other end of the insertion main body, having a structure that is gripped by a user's hand and can be inserted into or withdrawn into the inside of the insertion main body to a predetermined depth, and drives the hook unfolding part by the operation of insertion.

Description

Technology Field

[0001] The present invention relates to a device for removing foreign substances inside a pipe, and more specifically, to a device for removing foreign substances inside a pipe that includes a configuration capable of effectively removing foreign substances inside a pipe. Background Technology

[0002] Piping systems serve as critical components in various fields, including industrial sites, residential facilities, water and sewage networks, and chemical processes. Periodically removing internal foreign matter is essential to ensure smooth fluid flow. However, currently available tools for removing foreign matter are limited to simple manual scrapers or unidirectional rotating brushes, making effective cleaning difficult in cases involving complex pipe structures or deep penetration.

[0003] Conventional technology consists of a structure in which a hook-shaped removal structure or a scraper with uneven surfaces is fixed to the tip of an insertion rod. In this case, the user is encouraged to remove foreign matter by physically operating the insertion rod to rotate it or advance and retract it, but since the hook structure is exposed during the insertion and withdrawal process, there is a risk that the user's hand or skin may be scratched or punctured.

[0004] In actual work sites, the lengths and shapes of pipes to be cleaned vary, and it is often difficult to determine the exact location or tightness of foreign substances inside the pipe from the outside. Consequently, conventional integrated scraper methods struggle to reach beyond a certain depth from the pipe inlet, and frequently suffer from the counterproductive effect of pushing the foreign substances deeper inside the pipe by inserting without accurately targeting the intended foreign substances.

[0005] Furthermore, conventional devices consist solely of a single-shaped hook or scraper structure without expansion or contraction functions, making it impossible to customize fit according to pipe diameters. In some cases, the exposed structure may get caught on the inner wall of the pipe even before insertion, making entry difficult. Consequently, users must repeatedly apply force or shake the device to force it in, which causes damage to the pipe or increases the risk of the device breaking.

[0006] In addition, in conventional structures, even after scraping out foreign matter from inside the pipe, the foreign matter cannot be completely removed, and some of it gets caught on the hook and does not come out, or foreign matter remains on the surface of the hook after cleaning, leading to a deterioration in the hygienic condition of the device. In particular, in pipes with strong contaminants or a lot of oily foreign matter, maintenance efficiency is reduced because the device must be disassembled and cleaned separately after use.

[0007] In industrial sites where internal pipe cleaning is performed repeatedly, it is crucial to ensure both hygiene and worker safety; however, conventional technology requires direct contact with the user, and there is a constant risk of injury if operated without protective gear. In particular, numerous accidents have been reported involving hook-shaped metal tools where sharp edges are exposed due to improper handling or slippage, resulting in scratches or punctures to the face, hands, and arms.

[0008] Furthermore, existing devices do not have a separate fluid cleaning function, relying solely on physical scraping action, and struggle to remove oil films or stubborn foreign substances. Users must perform parallel cleaning by injecting separate cleaning water from the outside or attaching a separate nozzle to the pipe inlet, which increases operational complexity. In particular, they remain in a simple structure without incorporating modern cleaning technologies such as microbubble-based cleaning effects or cavitation induction functions.

[0009] Recently, there has been an increasing number of cases requiring the removal of foreign objects in narrow, winding pipes or locations difficult for the human body to access; however, conventional structures are unsuitable for these environments due to a lack of bending elasticity or deployment control functions. Depending on the insertion position or angle, the hook structure can get caught on the pipe wall, making free rotation or movement difficult and presenting a limitation in accurately reaching the target foreign object desired by the operator.

[0010] These problems stem from the fact that conventional technology utilizes hook or uneven structures as simple fixed components, leaving the structure exposed before insertion. This results in inconveniences such as snagging, collisions, and avoidance issues even before insertion, which can lead to operator failure or work stoppage. Furthermore, the absence of an active expansion structure capable of scraping the inner surface of the pipe limits the cleaning range and forces the operator to rely solely on repetitive movements.

[0011] Conventional technology is basically composed of a single hook structure based on manual operation or an exposed scraper structure, which presents various practical problems such as the risk of injury during operation, the movement of foreign substances to deeper locations, difficulty in precise target removal, limitations in removing residual contaminants, and the hassle of hygiene management; these factors significantly impede the safety and efficiency of internal pipe cleaning operations.

[0012] The present invention aims to solve the problems of such conventional technology and provides an integrated pipe internal foreign matter removal device that allows the hook structure to be selectively unfolded or folded according to the user's intention, enables safe insertion even to deep points inside the pipe, and allows for hygienic cleaning simultaneously with physical cleaning by adding a microbubble-based cleaning function. Prior art literature

[0013] Korean Patent Publication No. 10-2041656 (Registration Date: October 31, 2019) The problem to be solved

[0014] The present invention aims to solve the problems associated with conventional technology in the process of removing foreign substances from inside pipes, such as reduced safety, change in the location of foreign substances, reduced work efficiency, and difficulty in hygiene management. In particular, the invention aims to provide a device for removing foreign substances from inside pipes that simultaneously improves safety, workability, and hygiene by eliminating the risk of bodily injury caused by a structure where the hook structure is inserted with the hook structure exposed to the outside, the phenomenon of pushing foreign substances deeper, limitations on application to various pipe diameters, and the lack of a cleaning function, while allowing the hook structure to be selectively deployed and integrating a cleaning function. means of solving the problem

[0015] A device for removing foreign substances from inside a pipe according to one aspect of the present invention for achieving such an objective may comprise: an insertion body part having a structure extended to a predetermined length so as to be inserted into and withdrawn from the inside of a pipe to be cleaned; a hook unfolding part mounted on one end of the insertion body part and formed a hook structure by unfolding from one end or both sides of the insertion body part in a symmetrical or radial manner by operation of a handling control part; and a handling control part mounted on the other end of the insertion body part and having a structure that can be grasped by a user's hand and inserted into or withdrawn into the insertion body part to a predetermined depth, and which drives the hook unfolding part by an insertion operation.

[0016] In one embodiment of the present invention, the insertion body may be a hollow cylindrical structure in which a plurality of guide grooves are formed on the inner surface at a certain angle apart, through which the hook unfolding part can be unfolded radially.

[0017] In this case, the hook unfolding part may be provided with a plurality of wire members that are drawn out along a guide groove formed on the inner surface of the insertion main body and unfold radially from one end of the insertion main body.

[0018] At this time, the above-mentioned hook unfolding part can be unfolded radially and bent into a J-shape on the side to form a hook shape.

[0019] In one embodiment of the present invention, the hook unfolding part is structured to be inserted or withdrawn through a slit-shaped opening formed at the center of one end of the insertion main body part, and is structured to be withdrawn through the slit-shaped opening and simultaneously unfolded in a symmetrical form on both sides, and a plurality of hook structures may be formed at each end of the structure unfolded on both sides.

[0020] In one embodiment of the present invention, the hook unfolding portion comprises: a first hook unit having a plate-shaped structure that is inserted or withdrawn through the slit-shaped opening, a plurality of hook structures formed at one end, wherein the hook structure formed at one end is a structure bent with a predetermined radius of curvature in a direction opposite to the direction of surface contact with the second hook unit; and a second hook unit having a plate-shaped structure that is inserted or withdrawn in a stacked form in a surface contact with the first hook unit, a plurality of hook structures formed at one end, wherein the hook structure formed at one end is a structure bent with a predetermined radius of curvature in a direction opposite to the direction of surface contact with the first hook unit. The configuration may include a unit hinge connecting part that combines the first hook unit and the second hook unit with a hinge structure, folds the first hook unit and the second hook unit in a stacked structure that makes surface contact with each other when inserted through a slit-shaped opening, and incorporates an elastic member that causes the first hook unit and the second hook unit to unfold 180 degrees relative to each other when pulled out through a slit-shaped opening.

[0021] In one embodiment of the present invention, the handling control unit may be configured to include: a gripping part having a structure that is mounted on one end of the handling control unit and can be gripped by a user's hand; a sliding insertion part having a structure that is inserted from the gripping part into the insertion main body part and extends to the hook unfolding part, and has a structure that changes its sliding position into the insertion main body part or changes its sliding position outside the insertion main body part by the operation of the gripping part; and an operation transmission part that connects the sliding insertion part and the unit hinge connecting part (123) to each other and changes the position of the unit hinge connecting part according to the sliding position change of the sliding insertion part to implement the operation of the hook unfolding part.

[0022] In one embodiment of the present invention, the handling control unit may be configured to include a hygienic cleaning management unit having a structure that receives cleaning water and air from the other end of the insertion main body and sprays cleaning water in which microbubbles float in the direction of the hook unfolding unit mounted on one end of the insertion main body.

[0023] In one embodiment of the present invention, the hygienic cleaning management unit comprises: a pipe body part having a pipe structure through which supplied cleaning water can flow, and having a plurality of uneven structures continuously formed on its inner surface; a central axis forming part mounted at the center inside the pipe body part, composed of a flexible material having a predetermined rigidity, and having a structure that transmits air injected from a first gas injection part and a second gas injection part into the interior of the pipe body part in the form of microbubbles through a plurality of discharge holes formed on its outer surface; a spiral spring continuously mounted along the extension direction of the pipe body part in a manner that surrounds the central axis forming part inside the pipe body part, forms a spiral structure along the outer surface of the central axis forming part, and forms a vortex in the water flowing through the interior of the pipe body part; a first fixing part mounted inside the pipe body part and having a structure that fixes one end of the central axis forming part; and a second fixing part mounted inside the pipe body part and having a structure that fixes the other end of the central axis forming part. The configuration may include: a first gas injection part mounted on the first fixed part and having a structure for injecting supplied air into the central axis forming part in the form of microbubbles; and a second gas injection part mounted on the second fixed part and having a structure for injecting supplied air into the central axis forming part in the form of microbubbles. Effects of the invention

[0024] According to the present invention, by inserting a device into a pipe with a folded hook structure housed inside the insertion body and deploying the hook structure only when necessary, jamming during the insertion process can be prevented and user injury can be avoided. Furthermore, by selectively deploying the hook structure, foreign matter can be directly captured at a target location, thereby preventing the foreign matter from being pushed further into the pipe. In addition, by spraying cleaning water containing microbubbles through the hygienic cleaning management unit, the inside of the pipe and the surface of the hook structure can be cleaned simultaneously through the cavitation effect, thereby improving the efficiency of contaminant removal and enabling hygienic management without a separate cleaning process. Accordingly, overall work efficiency, safety, and hygiene are significantly improved. Brief explanation of the drawing

[0025] FIG. 1 is a perspective view showing a foreign matter removal device inside a pipe according to one embodiment of the present invention, showing a state in which the hook unfolding part is unfolded. FIG. 2 is a perspective view showing a foreign matter removal device inside a pipe according to one embodiment of the present invention, showing a state in which a hook unfolding part is inserted through a slit-shaped opening formed at the center of one end of the insertion main body part. Figure 3 is an enlarged view of section A of Figure 1. Figure 4 is an enlarged view of section B of Figure 2. FIG. 5 is a partial enlarged view showing two embodiments regarding the structure of one end of the insertion body part of a foreign matter removal device inside a pipe according to one embodiment of the present invention. FIG. 6 is a schematic diagram showing a hook unfolding part according to another embodiment of the present invention. FIG. 7 is a schematic plan view showing a foreign matter removal device inside a pipe according to another embodiment of the present invention. Figure 8 is a cross-sectional view showing the hygiene washing management unit illustrated in Figure 7. Figure 9 is an enlarged view of section C of Figure 8. FIGS. 10 and FIGS. 11 are a perspective view and a longitudinal section view, respectively, illustrating the appearance of a hook unfolding part of a pipe internal foreign matter removal device according to another embodiment of the present invention before and after it is unfolded from the insertion main body part. Specific details for implementing the invention

[0026] Preferred embodiments of the present invention will be described in detail below with reference to the drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the present invention.

[0027] Throughout this specification, when it is stated that one component is located "on" another component, this includes not only cases where one component is in contact with another component, but also cases where another component exists between the two components. Throughout this specification, when it is stated that a part "includes" a component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0028] FIG. 1 shows a perspective view of a device for removing foreign matter inside a pipe according to one embodiment of the present invention, showing a state in which the hook unfolding part is unfolded, and FIG. 2 shows a perspective view of a device for removing foreign matter inside a pipe according to one embodiment of the present invention, showing a state in which the hook unfolding part is inserted through a slit-shaped opening formed at the center of one end of the insertion main body part.

[0029] Referring to these drawings, the pipe internal foreign matter removal device (100) according to the present embodiment is equipped with an insertion main body part (110) of a specific structure, a hook unfolding part (120), and a handling control part (130), so that it can be used safely without injuring a part of the body during the handling process, can be easily inserted into the pipe to be cleaned without changing the position of the foreign matter, and after insertion, the hook structure can be unfolded according to the user's intention to easily scrape out the foreign matter, thereby providing a pipe internal foreign matter removal device that can ultimately maximize the efficiency of the foreign matter removal work.

[0030] Hereinafter, with reference to FIGS. 1 and FIGS. 9, each component constituting the internal foreign matter removal device (100) according to the present embodiment will be described in detail.

[0031] Detailed description of the insertion main body part (110)

[0032] The insertion body (110) is a core support structure that is inserted into the pipe to perform the task of removing foreign matter, and serves as a central frame that ensures the extension and operability of the entire device. The body is formed in a straight or a straight rod shape with some flexibility, and can be implemented as a modular or expandable structure so that it can be custom-made according to various pipe diameters and lengths. As a material, an aluminum alloy or high-strength plastic material that simultaneously satisfies lightness and corrosion resistance is used, and it is designed to easily maintain rigidity against external impacts or bent pipes.

[0033] The exterior of the insertion body (110) may have a circular or polygonal cross-sectional structure, and a low-friction coating may be applied to minimize external friction. The insertion body is provided with a slit-shaped opening at the tip through which a hook unfolding part (120) can be inserted and unfolded, thereby guiding the hook structure stored inside to be withdrawn only in a specific direction and providing a structure that prevents unintentional unfolding or shaking. The slit also serves to guide the hook structure to unfold in a balanced manner on both sides by maintaining a symmetrical structure.

[0034] A sliding insertion unit (132) operated by a handling control unit (130) is inserted inside the insertion main body (110), and moves back and forth along the inside of the main body according to the user's operation, thereby inducing the deployment operation of the hook deployment unit (120). Accordingly, the insertion main body is not merely a support tube, but provides a structural space in which an operating unit can be linked inside, and serves as a medium that mechanically connects the handling control unit and the hook deployment unit.

[0035] The insertion body (110) may also be reinforced with an inner reinforcing material or a steel wire structure to prevent twisting or bending caused by external forces during operation of the hook unfolding part (120). In particular, since internal structural fatigue may accumulate during prolonged use, durability capable of withstanding repetitive movements is required, and the insertion body must be designed to support stable operation for a long time with minimal external distortion. These characteristics are important factors in maintaining consistent performance in various fields, such as industrial piping and building piping maintenance.

[0036] Finally, the rear end of the insertion body (110) is coupled with the handling control unit (130), and the coupling part may be formed as a screw coupling or a click-type fixing part to facilitate the transmission of operating force. This structure allows the user to easily detach and replace the insertion body or switch to an insertion body of a different length and thickness when necessary, thereby enabling flexible response to the working environment. In addition, a connection port is formed at the rear end to enable the supply of cleaning water and air, and it also performs the function of forming a fluid passage so that cleaning fluid can flow from the hygiene cleaning management unit (140) toward the hook unfolding part.

[0037] Detailed description of the hook unfolding part (120)

[0038] The hook unfolding section (120) is a direct operating structure for scraping out foreign matter inside the pipe. It is stored inside the insertion main body (110) in a folded state according to the user's intention, and then unfolds at a specific location to perform the task of removing foreign matter. The structure is designed with a symmetrical bilateral unfolding method, so that the hook structure expands simultaneously in both directions through a slit-shaped opening, thereby enabling efficient scraping out of foreign matter attached to both sides of the inner wall of the pipe. Compared to the conventional unidirectional scraper method, this structure has a wider operating range and maintains center balance, enabling stable operation.

[0039] The hook deployment unit (120) is composed of a first hook unit (121) and a second hook unit (122), and each unit has a plate-like structure with a plurality of hook protrusions formed at regular intervals on one end. The hook protrusions are bent in opposite directions according to the deployment direction, so that when deployed, they adhere to the inner wall of the pipe and scrape off foreign matter. This bidirectional hook arrangement can respond to contaminants in both the left-right and up-down directions of the pipe, and can effectively remove even residues attached to flexible materials or curved surfaces.

[0040] The first hook unit (121) and the second hook unit (122) are inserted in a stacked state through the unit hinge connecting part (123) and are unfolded in a 180-degree range around the hinge structure according to the user's operation. The unit hinge connecting part (123) has an elastic member built in, so that it is configured to self-unfold when it reaches a certain position by pushing or pulling the sliding insertion part (132). Through this, the user can fully unfold the hook structure with only simple linear operation without complex rotational operation, and can prevent operation failure or intermediate breakdown.

[0041] The deployed hook deployment unit (120) adheres to the inner wall of the pipe while maintaining a constant angle and curvature, allowing it to effectively pull out foreign matter during forward and backward movement. In particular, the hook shape is designed with a rounded end and asymmetric curvature, so that it can accurately grip only the adhering foreign matter without scratching the surface. In addition, the unit itself is made of a metal or composite material that is thin but has sufficient rigidity, so it can be used without damage even under repeated friction or pressure.

[0042] The outer surface of the hook deployment unit (120) is positioned so that cleaning water or microbubbles supplied from the hygienic cleaning management unit (140) can be directly sprayed. This allows for the simultaneous removal of residual contaminants or sticky foreign substances remaining on the hook surface, and enables hygienic maintenance that allows the hook to be used immediately for the next task without separate cleaning after use. All components of the deployment unit are modularized so that they can be easily replaced or repaired after use, and they also have expandability to accommodate pipes of various sizes.

[0043] Four modified embodiments of the first hook unit (121) and the second hook unit (122)

[0044] Modification Example 1: Elastic Restoring Multi-Hook Structure

[0045] In the first modified embodiment, the first hook unit (121) and the second hook unit (122) are designed as a multi-hook structure with a plurality of fine hooks arranged at the tip of the plate-shaped main body, and each hook is asymmetrically arranged to have a different curvature. This structure serves to increase gripping stability by forming multiple contact points regardless of the size or shape of foreign matter inside the pipe.

[0046] Each hook unit features an elastic structure mixed with high-elasticity composite resin or spring steel wire, providing an automatic restoring force upon contact with the inner wall of the pipe. This prevents damage to the pipe wall due to excessive pressure while maintaining sufficient gripping power against foreign substances.

[0047] The first hook unit (121) and the second hook unit (122) are designed with a symmetrical shape so that even pressure can be applied relative to the center of the pipe when deployed. Accordingly, the phenomenon of foreign matter shifting to one side or sliding is reduced, and foreign matter can be stably discharged to the outside during the withdrawal process.

[0048] To enhance hygiene, fine irregularities are formed on the surface of each hook, which weakens surface tension when washing water is supplied, facilitating the easy detachment of foreign residue. Additionally, a hydrophilic coating is applied to the surface to ensure smooth diffusion of washing water and maximize cleaning efficiency.

[0049] This embodiment is capable of handling various foreign substances such as hardened sludge, oily residue, and fibrous residue, and significantly improves the efficiency of repetitive work, especially in piping environments where cleaning is required for a long time.

[0050] Modified Example 2: Integrated hollow structure of the cleaning channel

[0051] In the second modified embodiment, the first hook unit (121) and the second hook unit (122) are formed with a hollow internal structure, and a cleaning water channel is integrally formed inside. A plurality of fine spray holes are formed at the tip of each unit, so that when the hook is deployed, cleaning water is sprayed directly onto the surface of foreign matter.

[0052] This structure weakens the adhesion between the inner wall of the pipe and foreign substances by combining a physical scraping function with a fluid cleaning action. In particular, the possibility of removing oily contaminants or hardened deposits is significantly improved when combined with the cleaning water.

[0053] The internal flow path of the unit is designed in a curved shape so that the cleaning water forms a vortex and is discharged. As a result, the cleaning water reaches a wider area compared to a simple straight spray, and cleaning is possible even in areas other than the hook contact part.

[0054] After cleaning, residual water is automatically discharged through the internal channels of the unit, and a drainage slope is provided to prevent contaminants from accumulating inside. As a result, a hygienic condition can be maintained after use without the need for disassembly.

[0055] This embodiment is particularly suitable for food process piping, medical facility piping, laboratory piping, etc., where hygiene requirements are high, and has the structural advantage of being able to simultaneously achieve cleanliness maintenance and foreign substance removal.

[0056] Variant Example 3: Detachable modular structure

[0057] In the third variant embodiment, the first hook unit (121) and the second hook unit (122) are each designed as detachable modular structures, allowing them to be replaced with hook units of different shapes depending on the purpose of use. Each unit can be easily detached and mounted through a one-touch coupling structure or a magnetic coupling structure.

[0058] This structure allows for the selection of the optimal hook shape depending on the type of foreign matter inside the pipe, and, for example, a hook for fibrous foreign matter, a flat scraper for removing sediment, and a fine brush-type module for removing oil can be selected and applied.

[0059] In terms of hygiene, the hook unit can be detached for cleaning or replacement, reducing the hassle of cleaning the entire device. In particular, if the hook becomes deformed due to frequent use, replacing only the unit can also lead to reduced maintenance costs.

[0060] Each module is treated with an antimicrobial coating or manufactured from stainless steel-based materials, making it resistant to contamination and corrosion even during long-term use. It is also designed to withstand hot water, high-pressure water, and chemical cleaning without deformation.

[0061] This embodiment provides structural effects that offer high maintenance convenience, excellent field responsiveness, and the ability to flexibly respond to various work environments based on a single main body.

[0062] Variant Example 4: Radial hook deployment structure (see FIG. 6)

[0063] In the fourth modified embodiment, the insertion body (110) may be designed as a cylindrical structure. In this case, the insertion body (110) is a hollow cylindrical structure, and a plurality of guide grooves are formed on the inner surface at a certain angle apart.

[0064] A plurality of guide grooves are configured to serve as guides when a plurality of wire members constituting the hook unfolding part (120) are pulled out or inserted.

[0065] As shown in FIG. 6 (c), it is preferable that the guide grooves (p1, p2, p3, p4) be positioned such that the grooves facing each other are spaced apart by 1 to 15 degrees rather than 180 degrees. For example, guide groove p1 is positioned facing guide groove p2, but is positioned at a location 10 degrees away from 180 degrees. Guide grooves p3 and p4 are also positioned in the same manner. At this time, the guide grooves have an inner diameter of 3 mm so that the wire member can move along the inner surface of the cylindrical structure of the insertion main body (110), and are drawn out through a through hole having an inner diameter of 1 mm formed at one end of the insertion main body (110) and simultaneously unfold in a radial shape.

[0066] The hook unfolding part (120) is equipped with a plurality of wire members that are drawn out along a guide groove formed on the inner side of the insertion main body part (110) and unfold radially from one end of the insertion main body part (110).

[0067] The hook unfolding part (120) unfolds radially and is bent into a J-shape on the side to form a hook shape.

[0068] Variant Example 5: Radial hook deployment structure (see FIG. 10 and FIG. 11)

[0069] In the fifth modified embodiment, a hollow is formed through the interior of the insertion body (110) along the longitudinal direction, and a guide cap that assists in the contraction and expansion of the hook may be integrally provided at the tip of the insertion body (110). The guide cap has rigidity that reduces unnecessary friction with foreign matter when entering the pipe and does not deform even when a plurality of wire members constituting the hook expansion part (120) are repeatedly entered and exited.

[0070] The hook unfolding section (120) may be configured to include a plurality of wire members, for example, it may be configured with four wire members. The wire members are in the form of long steel wires penetrating the hollow interior of the insertion main body (110), and may be unfolded outward from a guide cap provided at the tip of the insertion main body (110) or inserted into the guide cap according to a push-pull operation. The tip of each wire member is heat-treated or molded to have a pre-bent property of spreading outward. By the push operation of the handling control section (130), the wire members protrude forward and are released from the restraint of the guide cap at the tip of the insertion main body (110). At this time, the wire members spread out radially by their own restoring force and are converted into a hook shape capable of capturing foreign matter. Conversely, the wire member is re-inserted into the hole formed in the guide cap at the tip of the insertion body (110) by the pull operation of the handling control unit (130). At this time, the tip edge of the insertion body (110) acts as a lever to bring the hooks together towards the center, thereby gripping foreign matter located between the hooks with strong compressive force. The end of the wire member is bent into a hook shape or has a rough surface finish, maximizing friction with slippery foreign matter such as wet wipes or hair to prevent it from falling out during the extraction process.

[0071] Detailed description of the handling control unit (130)

[0072] The handling control unit (130) is a part that is directly gripped and operated by the user's hand, and performs the function of moving the sliding insertion unit (132) inside the insertion main body (110) back and forth, thereby indirectly controlling the folding and unfolding operation of the hook unfolding unit (120). The handling control unit is designed with an ergonomic shape to reduce fatigue even during long-term operation, and anti-slip protrusions or a rubber coating may be applied to the outer surface to increase grip stability. The external shape is implemented in various forms, such as a cylindrical or rectangular structure, based on the shape of the handle.

[0073] Inside the handling control unit (130), an operating shaft or guide slot is arranged in conjunction with the sliding insertion unit (132), and the sliding insertion unit moves along the inside of the main body according to the user's pushing or pulling motion. A structure with minimized mechanical gap is adopted so that feedback is transmitted immediately during operation, and the operating shaft is made of a low-friction material so that no loss of operating force occurs. The operating distance and deployment strength are considered during the design, and the hook deployment unit is designed to automatically deploy when moved a certain distance.

[0074] The handling control unit (130) may be equipped with various auxiliary operating mechanisms, such as a sliding locking button, a click lock structure, and a rotary switch, thereby allowing the user to arbitrarily fix or release the deployed state of the hook deployment unit. These auxiliary functions enhance safety by preventing unintended movement during device use and provide functional advantages that allow for precise control of the user's movements.

[0075] At the rear end of the handling control unit (130), an inlet port or connecting coupler is provided to receive washing water and air from the hygiene washing management unit (140). The fluid introduced through the port moves forward along the insertion main body and passes through the hook unfolding unit to be sprayed in the form of microbubbles. This fluid path linkage structure realizes complex control by integrating the mechanical operation and cleaning functions of the main body.

[0076] Overall, the handling control unit (130) is a core interface that controls the operation and hygiene functions of the entire foreign matter removal device through structural linkage with the gripping unit (131), sliding insertion unit (132), operation operation transmission unit (133), etc., and is a central control element that must ensure operability, responsiveness, and durability.

[0077] Detailed explanation of the gripping part (131)

[0078] The gripping portion (131) is structured to be directly grasped and operated by the user with the hand, is located at one end of the handling control portion (130), and directly affects the gripping stability, usability, and operation fatigue of the entire device. The gripping portion has an ergonomic shape designed to interlock with the curvature of the palm, and is finished with various materials such as rubber, silicone, or plastic with protrusions to prevent slippage of the palm and fingers.

[0079] The external shape of the gripping part (131) can be designed as a cylindrical, elliptical, or flat curved structure, and lightweighting is reflected as an important design element so as not to cause fatigue during long-term operation. A guide slot or lever connection structure for transmitting operating pressure is built inside, so that the user's pushing or rotating motion can be accurately transmitted to the sliding insertion part or the operation motion transmission part.

[0080] The gripping part (131) may have a left-right asymmetrical structure or a symmetrical structure that allows for two-hand operation, taking into account the user's work habits or directionality, and a rotary lock function or a push button interface may be added if necessary. Through this, the user can fix or release the unfolded state, and can secure high control, especially when working in a fixed position inside a pipe for a long time.

[0081] Regarding hygiene, the outer surface of the gripping part may be treated with an antimicrobial coating or waterproofing. Given the structural characteristics of the working environment, where moisture, washing water, and dust may enter, the surface finish and dustproof structure of the gripping part are considered important design elements. Additionally, it may be manufactured with a segmented structure that allows for separation and cleaning after use.

[0082] The gripping part (131) goes beyond a simple gripping function and functions as a tactical operation interface to accurately transmit user operation to the sliding insertion part and at the same time maintain hygiene and safety of the entire device, and is an important component that governs the operability and durability of the entire device.

[0083] Detailed description of the sliding insertion part (132)

[0084] The sliding insertion part (132) starts inside the gripping part (131) of the handling control part (130) and extends along the insertion main body part (110) to the inside of the pipe, and is a dynamic transmission structure that induces the operation of the hook unfolding part (120) according to the user's operation. The structure is based on a linear sliding motion and is formed of a low-friction material (e.g., PTFE-coated aluminum or nylon material) so that it can move without friction inside the main body.

[0085] The sliding insertion part (132) is composed of an integrated rod or a foldable interlocking rod, and the folding and unfolding state of the hook unfolding part varies depending on the sliding position. When inserted, the hook unfolding part is folded so as to be received inside the slit-shaped opening, and as the sliding insertion part advances, it transmits operating force to the unit hinge connecting part (123) to induce the hook structure to unfold 180 degrees.

[0086] The sliding insertion unit may include a structure in which a lock or click lock is actuated to automatically lock the unit when it reaches a specific position, allowing the user to maintain the extended state without maintaining force after operation. This structure is effective in reducing operator fatigue while maintaining a stable extended state even within unstable piping structures.

[0087] To enhance operational reliability, position recognition markings, scales, or color distinctions may be applied to the outer surface of the sliding insertion part, which supports visual confirmation of the deployment depth or position adjustment. In addition, an elastic restoring member or damper is incorporated internally to induce smooth operation without sudden reaction or damage.

[0088] The sliding insertion part (132) is a mechanical core structure that governs the deployment mechanism of the entire device, and plays an essential role in realizing the performance and stability of the foreign matter removal operation inside the pipe by stably transmitting external operating force to the hook deployment part.

[0089] Detailed description of the operation transmission unit (133)

[0090] The operation transmission unit (133) is connected to the tip of the sliding insertion unit (132) and is an intermediate drive structure that accurately transmits the linear motion applied by the user through the gripping unit (131) to the unit hinge connecting unit (123) of the hook unfolding unit (120) so that unfolding and folding operations are performed. The transmission unit is structurally extended along the inside of the main body and is designed to simultaneously secure a certain rigidity and flexibility so that the operating force is not lost even in curved surfaces or sections where friction occurs.

[0091] The operation transmission unit (133) may be composed of a metal wire cable, a flexible shaft, or an integrated link bar structure, and among these, the flexible shaft method can satisfy both flexibility and precise driving simultaneously, making it advantageous for application in curved pipes. The operation transmission unit generates a constant length change or rotational movement in conjunction with the forward and backward movement of the sliding insertion unit, thereby causing the hook structure to perform the operation of unfolding or folding around the hinge.

[0092] The end of the transmission unit is connected to the unit hinge connecting part (123) by a mechanical link structure, and when the transmission unit is pulled, a constant rotational moment is provided to the hinge structure so that the hook unit unfolds outward. Conversely, when the transmission unit is pushed, the hook unit converges inward and returns to a folded state inside the insertion main body. Such a bidirectional operation structure is very effective in increasing the accuracy and repeatability of user operations.

[0093] The operation transmission section is constructed from materials with excellent wear resistance and resilience to prevent fatigue caused by repetitive operation; examples include nylon-coated steel wire, stainless steel spring bars, or flexible reinforced plastic. Although this is an internal structure not visible from the outside, the durability and responsiveness of this part are critical technical factors that determine the overall operational quality.

[0094] Additionally, the operation transmission unit (133) can be positioned in parallel with the Euro, and a multi-channel guide structure is applied so that it can operate without interference with the washing water line supplied from the hygiene washing management unit (140). As a result, fluid flow and machine operation can occur simultaneously without conflict, and a foundation is provided to implement the deployment operation of the hook structure and the washing operation as an integrated mechanism.

[0095] Detailed explanation of the hygiene cleaning management department (140)

[0096] The hygienic cleaning management unit (140) is a cleaning system integrated into the pipe foreign matter removal device of the present invention, and performs the function of chemically and physically removing contaminants from the hook unfolding unit and the inner wall of the pipe by spraying cleaning water in which microbubbles are suspended into the pipe. This structure provides a high-performance cleaning function rather than a simple water wash, and includes structural elements to increase the uniformity and penetration power of the cleaning effect.

[0097] The hygienic cleaning management unit is composed of a pipe body (141) including a cleaning water supply port connected to the rear end of the insertion main body (110) or the handling control unit (130), a cleaning water flow channel, a central axis forming unit (143), a spiral spring (144), a fine spray hole, and a plurality of uneven structures (142). These multiple structures induce the cleaning water to form a vortex and disperse, and allow microbubbles sprayed inside to burst on the surface of foreign matter, generating fine vibrations (cavitation effect) to remove even hardened residue.

[0098] In particular, the central axis forming part (143) is composed of a hollow tube having both flexibility and rigidity, and air injected from the first gas injection part (147) and the second gas injection part (148) through the interior is dispersed within the pipe through fine injection holes. This microbubble consists of bubbles smaller than ordinary cleaning water, and lowers surface tension to reduce adhesion between contaminants and the inner wall of the pipe, making it easier to remove contaminants.

[0099] The hygienic cleaning management unit is configured such that a water path is installed to directly spray cleaning water onto the hook deployment unit (120) itself, thereby automatically cleaning even contaminants remaining on the surface of the hook after operation. As a result, the entire device can be hygienically managed through internal circulation alone, without the need to disassemble or clean the device separately after use. This is particularly useful in environments with repeated use or in fields with strict hygiene standards, such as medical, food, and precision processes.

[0100] The spiral spring (144) is formed along the flow of the cleaning water and induces a rotational vortex within the flow path, causing the cleaning water to come into contact with foreign matter at various angles rather than flowing only in a constant direction. At the same time, the uneven structure formed on the pipe body (141) reinforces the turbulence of the fluid, increasing surface friction and contributing to the removal of foreign matter. As a result, the hygiene cleaning management unit (140) operates as an active microbubble-based cleaning system rather than a simple water cleaning system, and dramatically improves the efficiency of foreign matter removal in conjunction with mechanical scraping action.

[0101] Detailed description of the pipe body (141)

[0102] The pipe body (141) is a structure forming the outer periphery of the hygienic cleaning management unit (140), and is an integrated housing that forms the entire cleaning flow path and accommodates the central axis forming unit (143), helical spring (144), gas injection unit, etc. inside. It is formed in a general cylindrical structure, and the interior is configured with straight or curved sections to maintain a constant flow path according to the flow of cleaning water. The internal space is designed to minimize fluid resistance while maximizing the dispersion effect of microbubbles.

[0103] The pipe body is manufactured from materials that satisfy corrosion resistance, heat resistance, and high strength requirements; typically, stainless steel, polycarbonate, chemical-resistant PVC, or reinforced polymers capable of withstanding high pressure are used. This structure ensures durability for long-term use in various environments, such as industrial sites, medical pipelines, and food and beverage manufacturing lines. The thickness and structure are optimized to prevent deformation caused by external and fluid pressures and to maintain the airtightness of the internal flow path.

[0104] A plurality of uneven structures (142) are continuously formed on the inner surface of the main body of the pipe (141). These uneven structures function to disrupt the flow when fluid flows inside the main body, thereby inducing vortices or turbulence, which causes the cleaning water and microbubbles to act more strongly on the inner wall of the pipe. In particular, it is effective in inducing friction against adhesive contaminants or deposits to cause them to detach.

[0105] The pipe body is equipped with fixing parts at both ends to stably support the central axis forming part (143) and the spiral spring (144). The first and second fixing parts fix the front and rear ends of the central axis forming part to prevent shaking or detachment, and help the central axis maintain a constant position when microbubbles are supplied. Accordingly, the internal components remain aligned even during device operation, thereby ensuring stable cleaning performance.

[0106] Additionally, the pipe body (141) has a port formed therein to allow the introduction or discharge of cleaning water and air from the outside, so that it can be directly connected to an external cleaning water supply source or receive fluid from a handling control unit. Through this, microbubbles generated inside the pipe move toward the hook development unit, thereby completing a fluid flow path that can provide an integrated cleaning effect.

[0107] Detailed description of the central axis forming part (143)

[0108] The central axis forming part (143) is positioned in the center of the pipe body (141) and is a hollow shaft structure that performs the function of uniformly dispersing microbubbles formed along the air injection line into the pipe. This configuration guides air injected from the outside and discharges it through a plurality of fine discharge holes formed on the outer surface, thereby delivering hundreds to thousands of fine bubbles (microbubbles) into the pipe. The central axis forming part performs the role of precisely spraying air along with the cleaning water, thereby creating a high-efficiency cleaning environment that is differentiated from general cleaning.

[0109] Structurally, the central axis forming part is formed in the shape of a hollow tube, and a reinforced flexible material having constant elasticity and minimal shape deformation is applied. Representative materials such as TPU (thermoplastic polyurethane), silicone rubber, or nylon-coated steel wire may be used, and a flow path is formed inside through which air supplied from the first gas injection part (147) and the second gas injection part (148) can flow. This flow path is designed to have an optimal curvature and diameter to disperse bubbles without constant pressure loss.

[0110] Dozens to hundreds of micro-discharge holes are arranged at predetermined intervals on the outer surface of the central axis forming section, and these holes are configured to spray air independently of the wash water flow. The diameter of the discharge holes is generally maintained at the level of tens of micrometers (μm), which is a key point for controlling the average diameter of microbubbles and the injection pressure. Accordingly, fine-tuning of cleaning efficiency is possible by controlling bubble size and density.

[0111] Because microbubbles have low surface tension and low buoyancy, they can penetrate into the inner walls of pipes or fine surface gaps of hook structures, and upon bursting, they instantaneously generate local pressure to induce the removal of contaminants. The central axis forming part has a diffusion structure that allows bubbles to reach the entire interior of the pipe so that this action is uniformly distributed, and its position and shape are designed to operate without mutual interference with the fluid flow.

[0112] In addition, the central shaft forming unit can be manufactured with a detachable or separable structure to facilitate internal cleaning and maintenance. This allows users to perform simple maintenance on the device and take quick action in the event of problems such as contaminant accumulation or blockage of the bubble outlet. The central shaft forming unit functions as a precision component responsible for the core operating mechanism of the internal pipe cleaning system.

[0113] Detailed description of the spiral spring (144)

[0114] The spiral spring (144) is a structure that surrounds the central axis forming part (143) and is fixed inside the pipe body part (141), and performs the function of inducing a vortex in the flow of cleaning water, expanding the cleaning range, and assisting in the dispersion of microbubbles. This structure is installed in an extended direction together with the central axis, and by inducing a rotational flow velocity along a spiral path when the fluid flows, it increases the uniformity of the cleaning effect and the penetration power.

[0115] The spring structure is formed in a single-coil or multi-coil composite form, and the spacing between coils is optimized by considering fluid velocity, pressure, viscosity, etc. Generally, corrosion-resistant metals (stainless steel wire) or flexible synthetic resin springs are used, and they are designed to maintain a structurally stable state even in high-temperature and high-pressure environments. In addition to structural purposes, they actively contribute to flow direction control, turbulence generation, and bubble dispersion.

[0116] The helical spring prevents the fluid from flowing only along a straight path and imparts rotational motion to induce the even distribution of microbubbles along the inner walls of the pipe. This is particularly effective for removing contaminants remaining at the bottom or corners of the pipe and helps ensure uniform cleaning of even the surfaces of hook structures. Effective flow dispersion can be maintained even in pipe configurations where stagnant sections or standing water occur.

[0117] The spring is attached to minimize contact with the central axis forming part, and its surface may be insulated or coated with a lubricant to prevent friction or vibration. Additionally, it is desirable to configure the spring to be replaceable via a simple connection method in case of breakage or deformation after long-term use. An easy-to-maintain structure significantly enhances practicality in the field.

[0118] In conclusion, the spiral spring (144) goes beyond a simple mechanical structure to perform complex functions such as dynamic control of fluid flow, support for bubble diffusion, and uniformization of cleaning effects, and should be designed as a core operational support structure for the hygienic cleaning management unit (140). It is a structure that contributes not only to maintaining cleanliness inside the pipe but also to continuous hygienic management of the hook unfolding unit.

[0119] As explained above, the present invention implements a structure in which the hook structure is selectively deployed according to the user's intention, thereby fundamentally preventing the problem of causing physical danger to the user by being inserted in an exposed state as in the prior art. Since the hook structure is stored in a folded state inside the insertion body before insertion, the user can safely grip and operate the device without the risk of scratching or puncturing their hands or skin. This structure has practical advantages in that it significantly improves the safety of the operator and prevents accidents even when used by non-experts.

[0120] In addition, the present invention forms a slit-shaped opening in the front part of the insertion body and allows the hook unfolding part to unfold through the opening, thereby minimizing friction with the inner wall of the pipe during insertion and guiding it to accurately reach the location of the target foreign matter. In the prior art, there was a problem where the removal efficiency was reduced because the hook structure scraped the inner surface of the pipe or pushed out foreign matter during the insertion process, but the structure of the present invention solves this problem and enables the accurate removal of the cleaning target.

[0121] The hook unfolding section is designed as a multilayer structure that is folded or unfolded by the unit hinge connecting section (123), and multiple hook units folded in opposite directions are symmetrically unfolded so that foreign matter can be scraped off simultaneously from both sides of the pipe. This provides a technical basis for performing foreign matter removal work in a balanced manner even inside pipes with narrow cross-sectional areas or curves, and has the advantage of significantly increasing the cleaning range and contact area compared to conventional cross-sectional scraping methods.

[0122] The handling control unit includes a gripping part that is directly held by the user's hand, and the sliding insertion part and the operation motion transmission part are integrally formed internally, so that the unfolding or folding of the hook unfolding part can be easily performed with only a simple pushing or pulling motion by the operator. Since it operates using a structure that utilizes elastic restoring force without complex rotating gears or separate power, it has structural advantages such as low structural fatigue and low maintenance burden even with repeated use.

[0123] A hygienic cleaning management unit is combined with the front of the hook deployment unit, and this structure can perform chemical and physical cleaning actions simultaneously with physical scraping action by spraying cleaning water containing microbubbles into the pipe. In particular, fine contaminants or thin film residues can be removed by the cavitation effect generated when microbubbles burst, and the problem of residual contaminants remaining, which was an issue in conventional technology, can be effectively improved.

[0124] Multiple uneven structures and spiral springs are arranged inside the hygienic cleaning management unit to induce a vortex of cleaning water and uniformly disperse microbubbles sprayed from the central axis forming unit. Unlike simple water spraying, this structure enables efficient cleaning of a wide area of ​​the inner wall of the pipe, and simultaneously performs surface cleaning of the hook unfolding unit itself, making it excellent for maintaining the hygiene of the device. From the user's perspective, work efficiency is increased as the device can maintain a clean state without the need for separate disassembly and cleaning after repeated use.

[0125] Overall, the present invention structurally addresses the shortcomings of conventional technology in all aspects, including insertion safety, deployment accuracy, ease of operation, expandability of the cleaning range, hygiene maintenance capabilities, and internal cleaning automation. Furthermore, it demonstrates technical effectiveness capable of simultaneously satisfying two key requirements—practical functional improvement and safety assurance—when applied in the field for removing foreign substances from inside pipes. This invention can be considered one that realizes technological advancement in pipe cleaning devices while elevating the practicality and hygiene standards of industrial sites to a higher level.

[0126] The above detailed description of the present invention describes only specific embodiments thereof. However, it should be understood that the present invention is not limited to the specific forms mentioned in the detailed description, but rather should be understood to include all variations, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims.

[0127] In other words, the present invention is not limited to the specific embodiments and descriptions described above, and any person skilled in the art to which the present invention pertains can make various modifications without departing from the essence of the invention as claimed in the claims, and such modifications fall within the scope of protection of the present invention. Explanation of the symbols

[0128] 100: Pipe internal foreign matter removal device 110: Insertion main body 120: Hook deployment section 121: 1st Hook Unit 122: 2nd Hook Unit 123: Unit hinge connection part 130: Handling control unit 131: Pajibu 132: Sliding insertion part 133: Operation Action Transmission Unit 140: Hygiene & Washing Management Department 141: Pipe body 142: Uneven structure 143: Central axis forming part 144: Spiral Spring 145: 1st fixed part 146: Second Fixed Government 147: First gas injection section 148: Second gas injection section

Claims

Claim 1 An insertion main body (110) having a structure extended to a predetermined length so as to be inserted into and withdrawn from the inside of a pipe to be cleaned; a hook unfolding part (120) mounted on one end of the insertion main body (110) and unfolded from one end or both sides of the insertion main body (110) in a symmetrical or radial manner to form a hook structure by operation of a handling control part (130); The apparatus includes a handling control unit (130) which is mounted on the other end of the insertion main body (110), is structured to be held by a user's hand and inserted into or withdrawn into the insertion main body (110) to a predetermined depth, and drives the hook unfolding unit (120) to unfold by means of an insertion operation; wherein the insertion main body (110) is a hollow cylindrical structure having a plurality of guide grooves formed on the inner surface at a certain angle so as to allow the hook unfolding unit (120) to unfold radially, and the hook unfolding unit (120) is equipped with a plurality of wire members that are withdrawn along the guide grooves formed on the inner surface of the insertion main body (110) and unfold radially from one end of the insertion main body (110), and the hook unfolding unit (120) is characterized by being bent into a J-shape on the side to form a hook shape as it unfolds radially, thereby forming a foreign substance inside a pipe. Removal device. Claim 2 delete Claim 3 An insertion main body (110) having a structure extended to a predetermined length so as to be inserted into and withdrawn from the inside of a pipe to be cleaned; a hook unfolding part (120) mounted on one end of the insertion main body (110) and unfolded from one end or both sides of the insertion main body (110) in a symmetrical or radial manner to form a hook structure by operation of a handling control part (130); and a handling control unit (130) that is mounted on the other end of the insertion main body (110), is structured to be held by the user's hand and inserted into or withdrawn into the insertion main body (110) to a predetermined depth, and drives the hook unfolding unit (120) to unfold by the insertion operation; wherein the hook unfolding unit (120) is structured to be inserted or withdrawn through a slit-shaped opening formed in the center of one end of the insertion main body (110), and the hook unfolding unit (120) is structured to unfold symmetrically on both sides while being withdrawn through the slit-shaped opening, and a plurality of hook structures are formed at each end of the structure unfolded on both sides, and the hook unfolding unit (120) is a plate-shaped structure that is inserted or withdrawn through the slit-shaped opening, and a plurality of hook structures are formed at one end, and the hook structure formed at one end A first hook unit (121) having a structure bent at a predetermined radius of curvature in a direction opposite to the direction of surface contact with the second hook unit (122); a second hook unit (122) having a plate-shaped structure that is inserted or withdrawn by being stacked in a form that makes surface contact with the first hook unit (121), and having a plurality of hook structures formed at one end, wherein the hook structures formed at one end are a structure bent at a predetermined radius of curvature in a direction opposite to the direction of surface contact with the first hook unit (121);A device for removing foreign matter from inside a pipe, characterized by including: a unit hinge connecting part (123) that has an elastic member embedded therein that connects the first hook unit (121) and the second hook unit (122) with a hinge structure, folds the first hook unit (121) and the second hook unit (122) in a stacked structure that makes surface contact with each other when inserted through a slit-shaped opening, and causes the first hook unit (121) and the second hook unit (122) to unfold 180 degrees relative to each other when pulled out through a slit-shaped opening. Claim 4 delete Claim 5 delete Claim 6 In paragraph 3, the handling control unit (130) comprises: a gripping unit (131) which is mounted on one end of the handling control unit (130) and has a structure that can be grasped by a user's hand; and a sliding insertion unit (132) which is structured to be inserted into the insertion main body (110) from the gripping unit (131) and extended to the hook unfolding unit (120), and has a structure that changes its sliding position into the insertion main body (110) or changes its sliding position outside the insertion main body (110) by the operation of the gripping unit (131). A pipe internal foreign matter removal device characterized by including: an operation transmission unit (133) that connects the sliding insertion part (132) and the unit hinge connection part (123) to each other and changes the position of the unit hinge connection part (123) according to the sliding position change of the sliding insertion part (132) to implement the operation of the hook unfolding part (120).

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