Drainage pipeline cleaning and dredging machine and dredging method

Abstract

The invention relates to the field of pipeline cleaning and dredging, in particular to a drainage pipeline cleaning and dredging machine and a dredging method.The drainage pipeline cleaning and dredging machine comprises a body, the body comprises an upper cover and a lower cover, the upper cover is connected with an external power input shaft in a penetrating mode from outside to inside, and the outer end of the external power input shaft is connected with external rotating power through a connecting piece; the inner end of the external power input shaft is connected with a driving shaft of the overload protection clutch through the transmission shaft connector, a driven shaft of the overload protection clutch is connected with one end of the steel wire flexible shaft through the transmission shaft connector, and the outer side of the steel wire flexible shaft is sleeved with a nylon protection pipe. The upper cover and the lower cover are combined to form a flexible shaft storage bin, and the steel wire flexible shaft assemblies are sequentially arranged in the flexible shaft storage bin in a surrounding mode. The upper cover is connected with the bin cover through a buckle lock, the bin cover is provided with an outlet, the steel wire flexible shaft assembly extends out of the main body through the outlet, the cleaning and dredging cutter is installed at the other end of the steel wire flexible shaft and extends into the drainage pipeline to move back and forth to clean and dredge blockages in the pipeline, and an operator can achieve easy pushing operation.

Description

Technical Field

[0001] The invention relates to the field of pipeline cleaning and dredging, in particular to a drainage pipeline cleaning and dredging machine and a dredging method. Background Art

[0002] There are many methods and equipment widely used to unclog drainage pipes. Due to the different diameters and materials of drainage pipes, the structure of the pipes is complex and changeable, especially the continuous addition of multiple traps and elbows, which can easily cause pipe blockage. And due to the different formation time and materials of the blockage, it will bring many difficulties to effectively dredge the pipes.

[0003] Commonly used dredging tools are spring flexible shafts that can be extended continuously at will. Under rotation and axial pushing, they gradually enter the pipe to reach the blocked part, and the dredging tool connected to the front end of the spring flexible shaft completes the dredging operation. Since pushing the spring flexible shaft into the pipe requires holding the spring flexible shaft rotating at high speed, and repeatedly pulling and pushing it to pass through the water return bend and pipe bend, the dredging operation usually requires operators with certain professional skills and rich experience to complete, which is difficult and unsafe. Summary of the invention

[0004] In view of the above-mentioned problems, the present invention proposes a drainage pipe cleaning and unblocking machine and method, comprising a circular flexible shaft storage bin defining a certain space, a group of power transmission devices, a group of overload protection clutches, a set of flexible steel wire flexible shaft assemblies with nylon protective tubes, and a group of pipe cleaning and unblocking tools. Through external power input, the steel wire flexible shaft is driven to rotate at high speed in the nylon protective tube, driving the cleaning and unblocking tools fixed at the front end of the steel wire flexible shaft to extend into the drainage pipe and move back and forth to clean and unblock the blockages in the pipe. The machine has the advantages of simple structure, light weight and portability, and the operator can easily perform the pushing operation.

[0005] To achieve the above object, the present invention is implemented according to the following technical solutions:

[0006] On the one hand, the present invention provides a drainage pipe cleaning and unblocking machine, including a main body, wherein the main body includes an upper cover and a lower cover fixedly connected to each other, the upper cover is annular, and an internal cavity formed by the upper cover and the lower cover is connected to the outer center of the upper cover, and the upper cover is connected to an external power input shaft from the outside to the inside, and the outer end of the external power input shaft is connected to the external rotating power through a connecting piece; a power transmission shaft frame is installed inside the upper cover, and the external power input shaft passes through the center of the power transmission shaft frame through a bearing support, and the inner end of the external power input shaft is connected to the overload protection wheel through a transmission shaft joint. The lower cover is a circular groove shape matching the upper cover, and the inner cavity of the upper cover and the lower cover are combined to form a flexible shaft storage bin, and the flexible shaft assembly consisting of the flexible shaft and the nylon protective tube is sequentially arranged in the flexible shaft storage bin; the outer center of the upper cover is connected to the bin cover by a snap lock, and an outlet is opened at the center of the bin cover, through which the flexible shaft assembly extends to the outside of the main body, and a cleaning and unblocking tool is installed at the other end of the flexible shaft.

[0007] In the above technical solution, protrusions are evenly distributed on the top platform of the upper cover, and the external power input shaft forms an angle of 20° with the top platform.

[0008] In the above technical solution, a carrying handle is provided on one side of the main body.

[0009] In the above technical solution, the overload protection clutch includes a driving shaft ball disc, a driven shaft ball disc, balls, a ball retainer, a driving shaft, a driven shaft, a driven shaft joint, a compression spring and a spring adjustment sleeve. The driving shaft is fixed with a driving shaft ball disc on the outside, the driven shaft is a hollow shaft, the side of the driving shaft away from the power transmission shaft frame is sleeved with the inner side of the driven shaft, the end of the driven shaft that is biased toward the driving shaft ball disc is connected with the driven shaft ball disc, the driving shaft ball disc and the driven shaft ball disc are both provided with grooves distributed in a circular array, and the ball discs are provided with grooves distributed in a circular array. A one-to-one correspondence is arranged in the groove between the driving shaft ball disc and the driven shaft ball disc, and a ball retainer is sleeved on the driving shaft between the driving shaft ball disc and the driven shaft ball disc. The ball retainer is provided with a through hole corresponding to the position of the ball, and the diameter of the through hole is greater than the diameter of the ball; a compression spring is sleeved on the outer side of the driven shaft, and the spring adjustment sleeve is sleeved on the outer side of the compression spring and fixedly connected to the driving shaft ball disc, so as to apply axial thrust to the compression spring; the end of the driven shaft away from the driving shaft is connected to the transmission shaft joint through a driven shaft joint.

[0010] In the above technical solution, a protective cover is arranged inside the upper cover and outside the overload protection clutch.

[0011] In the above technical solution, the end of the nylon protective tube located inside the upper cover is fixed by a fixing clip.

[0012] In the above technical solution, the center of the bottom end of the lower cover protrudes toward the inner side of the flexible shaft storage bin to form a cylindrical boss, and the diameter of the cylindrical boss is larger than the minimum circumferential diameter of the steel wire flexible shaft.

[0013] In the above technical solution, the cleaning and unblocking tool is a ring chain type unblocking tool.

[0014] In the above technical solution, a support foot is connected to the bottom end of the lower cover.

[0015] On the other hand, the present invention provides a method for cleaning and unblocking a drainage pipe, which is implemented according to any one of the above-mentioned drainage pipe cleaning and unblocking machines. During the cleaning and unblocking operation, the main body of the drainage pipe cleaning and unblocking machine is first placed horizontally, and then the hexagon socket wrench is connected and fixed with an external rotating power, the compartment cover is opened, the steel wire flexible shaft assembly is taken out, and the steel wire flexible shaft assembly is passed through the outlet for about 1 meter, and then the compartment cover is screwed and locked; the cleaning and unblocking tool is installed at the front end of the steel wire flexible shaft; the nylon protective tube is held in one hand, and the steel wire flexible shaft assembly is inserted into the pipe opening of the pipe to be unblocked, and then inserted as far as possible, and the operator controls the external rotating power with one hand, inserts the hexagon socket wrench into the hexagonal handle at the end of the external power input shaft, and connects the power input; starts Turn on the power switch to drive the steel wire flexible shaft to rotate at high speed in the nylon protective tube. Hold the nylon protective tube of the steel wire flexible shaft assembly with the other hand, pull out the steel wire flexible shaft assembly of appropriate length, hold and swing the arm to pass the steel wire flexible shaft assembly through the outlet, and push it into the pipe to be unblocked in sequence, driving the cleaning and unblocking tool fixed at the front end of the steel wire flexible shaft to rotate at high speed in the pipe, knocking and cutting to clean the blockages formed by scaling in the pipe and on the inner wall of the pipe, and repeatedly pulling, pushing and moving the steel wire flexible shaft assembly in the pipe to complete the pipe cleaning and unblocking operation; after the unblocking operation is completed, push the steel wire flexible shaft assembly into the flexible shaft storage bin in sequence, and the steel wire flexible shaft assembly is neatly arranged in a circle in the flexible shaft storage bin to complete the cleaning and unblocking operation.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The upper cover and the lower cover are connected to form a flexible shaft storage bin with a certain space and walking track. The external rotating power is connected to the overload protection clutch through the external power input shaft. The overload protection clutch is connected to the steel wire flexible shaft through the driving shaft and the driven shaft. The steel wire flexible shaft with a nylon protective tube is input and output from the space defined by the flexible shaft storage bin. During the process of cleaning and unblocking the pipeline, the steel wire flexible shaft assembly gradually extends into the drainage pipeline, and transmits the high-speed rotating power to the cleaning and unblocking tool through the anti-water bend, curved pipe, and straight pipe laid in the pipeline; the overall device is exquisite, portable, and reasonably designed. The operator can easily push the high-speed rotating unblocking flexible shaft and tool to travel back and forth in the drainage pipeline to clean the blockage in the unblocking pipeline; the external power input shaft transmits the speed and torque to the steel wire flexible shaft through the overload protection clutch. When the rotation speed and maximum torque required for the unblocking operation are met, the overload protection clutch can ensure that the overload protection clutch will automatically disconnect when the steel wire flexible shaft is subjected to a large reverse torque during the unblocking and cleaning operation, protecting the steel wire flexible shaft from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a structural schematic diagram of a drainage pipe cleaning and unclogging machine according to an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the longitudinal cross-sectional structure of the drainage pipe cleaning and unclogging machine of the present invention;

[0021] Figure 3 This is the installation structure diagram of the external power input shaft;

[0022] Figure 4 It is a schematic diagram of the internal structure of the upper cover;

[0023] Figure 5 It is a schematic diagram of the connection structure between the external power input shaft and the overload protection clutch;

[0024] Figure 6 It is a schematic diagram of the process of transmitting external power to the steel wire flexible shaft;

[0025] Figure 7 This is a schematic diagram of the overload protection formation process;

[0026] Figure 8 This is the exploded diagram of the overload protection clutch structure;

[0027] Fig. 9It is a schematic diagram of the structure of the steel wire flexible shaft assembly;

[0028] Fig.10 This is a schematic diagram of the fixing structure of the tail end of the steel wire flexible shaft assembly;

[0029] Fig.11 It is a schematic diagram of the flexible shaft guide space of the flexible shaft storage bin;

[0030] Fig.12 This is a schematic diagram of the bottom structure of the drainage pipe cleaning and unclogging machine according to an embodiment of the present invention;

[0031] Fig.13 This is a schematic diagram of the operation state of the drainage pipe cleaning and unclogging machine according to an embodiment of the present invention;

[0032] Fig.14 Schematic diagram of cleaning and unblocking operation of wire flexible shaft assembly.

[0033] Figure numerals: 1-main body; 2-upper cover; 3-lower cover; 4-flexible shaft storage compartment; 5-compartment cover; 6-snap lock; 7-export; 8-handle; 9-power transmission device; 10-power transmission shaft frame; 11-external power input shaft; 12-hexagonal handle; 13-inner hexagon socket wrench; 14-external rotation power; 15-overload protection clutch; 1503-driving shaft ball disc; 1504-driven shaft ball disc; 1505-ball; 150 6-ball retainer; 1507-compression spring; 1508-spring adjustment sleeve; 1509-limit screw; 1510-driven shaft joint; 1512-protective cover; 16-driving shaft; 17-driven shaft; 18-fixing clamp; 19-wire flexible shaft assembly; 20-wire flexible shaft; 21-nylon protective tube; 22-cleaning and unblocking tool; 23-first bolt; 24-cylindrical boss; 25-support foot; 26-drive shaft joint; 28-second bolt. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0035] like Figure 1-Figure 14As shown, an embodiment of the present invention proposes a drainage pipe cleaning and unblocking machine, including a main body 1, wherein the main body 1 includes an upper cover 2 and a lower cover 3 fixedly connected to each other, the upper cover 2 and the lower cover 3 are fixedly connected by a plurality of first bolts 23 on the circumference, the upper cover 2 is annular, and the internal cavity formed by the upper cover 2 and the lower cover 3 is connected to the external center of the upper cover 2, the main body 1 is made of engineering plastic, the upper cover 2 is connected to the external power input shaft 11 from the outside to the inside, and the outer end of the external power input shaft 11 is connected to the external rotating power 14 through a connecting piece; a power transmission shaft frame 10 is installed inside the upper cover 2, and the external power input shaft 11 passes through the center of the power transmission shaft frame 10 through a bearing support, and the inner end of the external power input shaft 11 is connected to the external rotating power 14 through a transmission The dynamic shaft joint 26 is connected to the driving shaft 16 of the overload protection clutch 15, and the driven shaft 17 of the overload protection clutch 15 is connected to one end of the steel wire flexible shaft 20 through the transmission shaft joint 26. The outer side of the steel wire flexible shaft 20 is sleeved with a nylon protective tube 21; the lower cover 3 is a circular groove shape matching the upper cover 2, and the inner cavity of the upper cover 2 and the lower cover 3 is combined to form a flexible shaft storage bin 4. The steel wire flexible shaft assembly 19 composed of the steel wire flexible shaft 20 and the nylon protective tube 21 is sequentially arranged in the flexible shaft storage bin 4; the outer center of the upper cover 2 is connected to the bin cover 5 through a snap lock 6, and an outlet 7 is opened at the center position of the bin cover 5. The steel wire flexible shaft assembly 19 extends to the outside of the main body 1 through the outlet 7, and the other end of the steel wire flexible shaft 20 is installed with a cleaning and unblocking tool 22.

[0036] The drainage pipe cleaning and unblocking machine of the present invention is overall designed as a main body 1 platform which is horizontal when in use, an upper cover 2 is connected with a lower cover 3 to form a flexible shaft storage bin 4 with a certain space and a walking track, an external rotating power 14 is connected to an overload protection clutch 15 via an external power input shaft 11, and the overload protection clutch 15 is connected to a steel wire flexible shaft 20 via a driving shaft 16 and a driven shaft 17, and the steel wire flexible shaft 20 with a nylon protective tube 21 is input and output from the space defined by the flexible shaft storage bin 4. During the process of cleaning and unblocking the pipeline, the steel wire flexible shaft assembly 19 gradually extends into the interior of the drainage pipe, and transmits the high-speed rotating power to the cleaning and unblocking tool 22 through the return bends, curved pipes and straight pipes laid in the pipeline; the overall device is exquisite, portable and reasonably designed, and the operator can easily push the high-speed rotating unblocking flexible shaft and the tool to move back and forth in the drainage pipe to clean the blockage in the unblocking pipe; the external power input shaft transmits the rotation speed and torque to the steel wire flexible shaft through the overload protection clutch. When the rotation speed and maximum torque required for the unblocking operation are met, the overload protection clutch can ensure that the steel wire flexible shaft will be automatically disconnected when it is subjected to a large reverse torque during the unblocking and cleaning operation, thereby protecting the steel wire flexible shaft from damage.

[0037] like Figure 1 , Figure 2As shown, there are equidistant protrusions on the top platform of the upper cover 2 to assist positioning or support during operation and connection; the axis of the external power input shaft 11 forms a 20° angle with the top platform; the external power input shaft 11 extends out of the hexagonal handle 12 at a 20° angle, and the external power connection is completed when the main body is in a horizontal state; the external rotary power 14 generally adopts a rechargeable hand drill, and can also be other power equipment or devices that can meet the speed and torque requirements. In this embodiment, the external rotary power 14 adopts a rechargeable hand drill, and the drill chuck at the front end of the rechargeable hand drill is connected to the hexagonal socket wrench 13, and the hexagonal socket wrench 13 is inserted into the hexagonal handle 12 to transfer the external rotary power 14 to the external power input shaft 11. The holding angle of the hand drill for the external rotary power 14 and the insertion and withdrawal method of the hexagonal socket wrench 13 meet the requirements of ergonomics. The cooperation relationship between the operator and the drainage pipe cleaning and dredging machine is coordinated, and the cleaning and dredging operation process is easy and natural.

[0038] A handle 8 is provided on one side of the main body 1 for easy carrying and movement.

[0039] like Figures 3 to 6 As shown, a power transmission shaft frame 10 is installed in the upper cover 2, and the power transmission shaft frame 10 is externally connected to a power input shaft 11. The external power input shaft 11 passes through the center of the power transmission shaft frame 10 through a group of bearing supports, and the power transmission shaft frame 10 is fixed in the upper cover 2 with a second bolt 28 to form a power transmission device 9; the outer end of the external power input shaft 11 is connected to the external rotating power 14 through a hexagonal handle 12, and the inner end of the external power input shaft 11 is connected to the overload protection clutch 15 through a transmission shaft joint 26. The overload protection clutch 15 is fixed inside the upper cover 2, and the external power input shaft 11 is connected to the external rotating power 14 through a hexagonal handle 12. The inner end of the external power input shaft 11 is connected to the overload protection clutch 15 through a transmission shaft joint 26. The overload protection clutch 15 is fixed inside the upper cover 2, and the external power input shaft 11 is connected to the external rotating power 14 through a hexagonal handle 12. The power input shaft 11 is connected to the driving shaft 16 of the overload protection clutch 15 through the transmission shaft joint 26, and the driven shaft 17 of the overload protection clutch 15 is connected to the steel wire flexible shaft 20 through the transmission shaft joint 26, and the rotational power 14 is transmitted to the steel wire flexible shaft 20 through the overload protection clutch 15; the overload protection clutch 15 determines the appropriate rotational overload torque by adjustment, and the driven shaft 17 and the driving shaft 16 are automatically separated when overloaded. After the overload is released, the driven shaft 17 of the overload protection clutch 15 is combined with the driving shaft 16 to drive the steel wire flexible shaft 20 to rotate. The overload protection clutch 15 described in the present invention can be a ball-type overload protection clutch, or a friction plate type or other form of overload protection clutch, and can also be extended to various types of overrunning clutches that can meet the requirements of two-way overrunning clutches.

[0040] like Figures 7 and 8As shown, the overload protection clutch 15 includes a driving shaft ball disc 1503, a driven shaft ball disc 1504, balls 1505, a ball retainer 1506, a driving shaft 16, a driven shaft 17, a driven shaft joint 1510, a compression spring 1507 and a spring adjustment sleeve 1508, the driving shaft 16 is fixed with a driving shaft ball disc 1503 on its outer side, the driven shaft 17 is a hollow shaft, the side of the driving shaft 16 away from the power transmission shaft frame 10 is sleeved with the inner side of the driven shaft 17, the end of the driven shaft 17 that is biased toward the driving shaft ball disc 1503 is connected with the driven shaft ball disc 1504, the driving shaft ball disc 1503 and the driven shaft ball disc 1504 are respectively provided with grooves distributed in a ring array, and the balls 1505 are arranged one by one in the grooves between the driving shaft ball disc 1503 and the driven shaft ball disc 1504. In the groove, the depth of the groove is slightly smaller than the radius of the ball 1505; the driving shaft 16 is provided with a ball retainer 1506 at a position between the driving shaft ball disc 1503 and the driven shaft ball disc 1504, and the ball retainer 1506 is provided with a through hole corresponding to the position of the ball 1505, and the diameter of the through hole is larger than the diameter of the ball 1505; the outer side of the driven shaft 17 is provided with a compression spring 1507, and the spring adjustment sleeve 1508 is sleeved on the outer side of the compression spring 1507 and fixedly connected to the driving shaft ball disc 1503 through a limit screw 1509, which is used to apply axial thrust to the compression spring 1507; the end of the driven shaft 17 away from the driving shaft 16 is connected to the transmission shaft joint 26 through the driven shaft joint 1510; the appropriate rotational overload torque of the compression spring 1507 is determined by the spring adjustment sleeve 1508, and is limited and locked. When the external power input shaft 11 rotates, the rotational power is transmitted to the driven shaft 17 through the driving shaft 16 of the overload protection clutch 15 and then to the steel wire flexible shaft 20. When the steel wire flexible shaft 20 is subjected to a large reverse torque, it will drive the driven shaft ball disc 1504 to stop, and overcome the axial thrust of the compression spring 1507, push the ball 1505 away and rotate in the opposite direction, so that the driven shaft 17 cannot operate normally, and the driving shaft 16 can continue to operate. When the reverse overload torque decreases, the axial thrust of the compression spring 1507 decreases, and the driven shaft ball disc 1504 and the driving shaft ball disc 1503 are forced to mate, and the rotational power is transmitted to the driven shaft 17. The overload protection clutch 15 of the present invention controls the maximum reverse torque of one end of the cleaning and dredging tool 22 while ensuring the maximum allowable torque of the steel wire flexible shaft 20 for dredging, thereby effectively protecting the steel wire flexible shaft 20 from working under limited torque and preventing the steel wire flexible shaft 22 from being damaged due to reverse torque overload; the overload torque of the overload protection clutch 15 is set according to the diameter, yield limit, and pipeline cleaning and dredging working conditions of the steel wire flexible shaft 20, and the axial thrust applied to the compression spring 1507 is adjusted through the spring adjustment sleeve 1508, and the appropriate rotational torque is selected to pre-set the allowable torque of the overload protection clutch; when the rotational torque is overloaded, the driven shaft 17 of the overload protection clutch 15 and the driving shaft 16 are automatically clutched.The overload protection clutch 15 is confined within the upper cover 2 by a protective cover 1512 .

[0041] like Fig. 9 As shown, there is a steel wire flexible shaft assembly 19 in the main body 1, and the steel wire flexible shaft assembly 19 is composed of a steel wire flexible shaft 20 and a nylon protective tube 21. The steel wire flexible shaft 20 passes through the nylon protective tube 21 of the same length as the steel wire flexible shaft to form the steel wire flexible shaft assembly 19. The steel wire flexible shaft 20 is a torque transmission flexible steel wire flexible shaft formed by multiple layers of left and right alternating superposition and winding. The diameter of the nylon protective tube 21 is slightly larger than the diameter of the steel wire flexible shaft 20. The function of the nylon protective tube 21 is to isolate the high-speed rotation movement of the steel wire flexible shaft 20 and protect it inside the nylon protective tube 21. The inner wall of the nylon protective tube 21 must be smooth enough, and the inner wall of the nylon protective tube 21 does not hinder or interfere with the high-speed rotating steel wire flexible shaft 20, thereby ensuring that the steel wire flexible shaft 20 does not generate large friction resistance when rotating at high speed in the nylon protective tube 21.

[0042] like Fig.10 As shown, the tail end of the steel wire flexible shaft 20 is connected to the driven shaft 17 of the overload protection clutch 15 through the transmission shaft joint 26. To prevent the tail end of the steel wire flexible shaft assembly 19 from moving, the tail end of the nylon protective tube 21 is fixed in the upper cover 2 by a fixing clip 18. After the tail end of the nylon protective tube 21 is fixed, the diameter of the nylon protective tube 21 should not be reduced due to the fixing, so as to fully ensure that the steel wire flexible shaft 20 rotates at a high speed in the nylon protective tube 21. The steel wire flexible shaft assembly 19 with the tail end fixed is sequentially arranged in a surrounding manner in the flexible shaft storage bin 4 composed of the upper cover 2 and the lower cover 3.

[0043] like Fig.11 As shown, the upper cover 2 and the lower cover 3 are combined into a circular flexible shaft storage bin 4 by means of a first bolt 23. The bottom center of the lower cover 3 protrudes toward the inside of the flexible shaft storage bin 4 to form a cylindrical boss 24. The outer ring diameter of the flexible shaft storage bin 4 should be sufficient to ensure that the steel wire flexible shaft 20 is always in a relaxed state when it is wrapped around the flexible shaft storage bin 4, so as to avoid or reduce the friction resistance generated by the high-speed rotation of the steel wire flexible shaft 20 in the nylon protective tube 21. The height of the flexible shaft storage bin 4 should be smaller than the minimum winding diameter of the steel wire flexible shaft 20, and the diameter of the cylindrical boss 24 should be larger than the minimum winding diameter of the steel wire flexible shaft 20. The above factors are combined to form a guide space for the steel wire flexible shaft assembly 19 to enter the flexible shaft storage bin 4, thereby ensuring that the steel wire flexible shaft assembly 19 will not form an 8-shaped winding and flip knot in the flexible shaft storage bin 4 when it is pulled out and fed in sequentially from the outlet 7. The steel wire flexible shaft assembly 19 is always arranged sequentially along the inner wall of the flexible shaft storage bin 4, so that the steel wire flexible shaft assembly 19 is always output sequentially from the outlet 7, and is always arranged in a forward direction when it is input.

[0044] like Fig.12As shown, at the bottom end of the lower cover 3, there are three equally distributed supporting feet 25. During the dredging operation, the main body 1 composed of the upper cover 2 and the lower cover 3 can only be laid horizontally and cannot stand upright, forming a stable dredging operation platform.

[0045] like Fig.13 As shown, the outlet 7 is arranged at the center of the annular flexible shaft storage bin 4, and the steel wire flexible shaft assembly 19 is output and input from the outlet 7. When the steel wire flexible shaft assembly 19 is input from the outlet 7, it is sequentially arranged around the inner wall of the flexible shaft storage bin 4. Due to the elastic tension generated by the steel wire flexible shaft 20 when it is input around, the steel wire flexible shaft assembly 19 is always sequentially arranged along the inner wall of the flexible shaft storage bin 4. The diameter of the outlet 7 is limited to allow only the cleaning and dredging tool 22 at the front end of the steel wire flexible shaft 20 to pass easily. When the steel wire flexible shaft assembly 19 is sequentially pulled out and sequentially input from the outlet 7, the steel wire flexible shaft assembly 19 arranged in a horizontal state in the flexible shaft storage bin 4 is always output and input in a vertical state; when it is input, it is always arranged vertically downward in a forward direction, and the weight of the steel wire flexible shaft assembly 19 can stably arrange the steel wire flexible shaft assembly 19 in the flexible shaft storage bin 4.

[0046] The cleaning and unblocking tool 22 is a circular chain unblocking tool, which can be a circular chain or a circular chain with carbide blades welded on the circular ring. When rotating at high speed, the circular chain is expanded by centrifugal force, and moves back and forth in the pipeline to knock on the inner wall of the pipeline and crush the pipeline blockage. The circular chain unblocking tool helps to expand the working efficiency of the cleaning and unblocking tool.

[0047] Depend on Fig.13 Combination Fig.14 As shown, during the cleaning and dredging operation, the steel wire flexible shaft assembly 19 extends outside the main body 1 through the outlet 7, and the steel wire flexible shaft 20 rotates at high speed in the nylon protective tube 21, driving the cleaning and dredging tool 22 to rotate synchronously. The operator holds the nylon sheath 21 of the steel wire flexible shaft assembly 19, pulls and pushes the steel wire flexible shaft assembly 19 to continuously extend and move in the pipeline. During the rotation, forward, backward and dredging operation in the pipeline, the steel wire flexible shaft 20 is always completely contained in the nylon protective tube 21 and moves synchronously, and will not deviate from the protection and travel direction of the nylon protective tube 21. The pipeline cleaning and dredging operation is completed by the cleaning and dredging tool 22 fixed at the front end of the steel wire flexible shaft 20.

[0048] A method for cleaning and unblocking drainage pipes according to an embodiment of the present invention, during cleaning and unblocking operations, the drainage pipe cleaning and unblocking machine body 1 is first placed horizontally, and then the hexagon socket wrench 13 is connected and fixed with the external rotating power 14, the compartment cover 5 is opened, the steel wire flexible shaft assembly 19 is taken out, and the steel wire flexible shaft assembly 19 is passed through the outlet 7 for about 1 meter, and then the compartment cover 5 is screwed and locked. The cleaning and unblocking tool 22 is installed at the front end of the steel wire flexible shaft 20. The nylon protective tube 21 is held in one hand, and the steel wire flexible shaft assembly 19 is inserted into the pipe opening of the unblocked pipe, and then inserted as far as possible, and the operator manipulates the external rotating power 14 with one hand, inserts the hexagon socket wrench 13 into the hexagonal handle 12 at the end of the external power input shaft 11, and connects the power input. Start the power switch, the external rotary power 14 transmits the power from the external power input shaft 11 to the steel wire flexible shaft 20 through the overload protection clutch 15 to drive the steel wire flexible shaft 20 to rotate at a high speed in the nylon protective tube 21. When the rotation speed and maximum torque required for the dredging operation are met, the overload protection clutch 15 can ensure that the steel wire flexible shaft 20 is automatically disconnected when a large reverse torque is applied during the dredging and cleaning operation, thereby protecting the steel wire flexible shaft 20 from damage. Hold the nylon protective tube 21 of the steel wire flexible shaft assembly 19 with the other hand and pull out a suitable length of The steel wire flexible shaft assembly 19 is held and swung by the arm to pass through the outlet 7, and is pushed into the pipeline to be cleared in sequence, driving the cleaning and clearing tool 22 fixed at the front end of the steel wire flexible shaft 20 to rotate at high speed in the pipeline, knocking and cutting to clean the blockages formed by scaling in the pipeline and on the inner wall of the pipeline, and repeatedly pulling, pushing and moving the steel wire flexible shaft assembly 19 in the pipeline to complete the pipeline cleaning and clearing operation; after the clearing operation is completed, the steel wire flexible shaft assembly 19 is easily and sequentially pushed into the flexible shaft storage bin 4, and the steel wire flexible shaft assembly 19 is neatly arranged in a circle in the flexible shaft storage bin 4 to complete the cleaning and clearing operation.

[0049] It should be noted that the flexible steel wire shaft used to clear the blockage of the drainage pipe has various specifications, diameters and different lengths, and the present invention is not limited to using only one kind of steel wire shaft assembly with one diameter and length.

[0050] An embodiment of the present invention is a drainage pipe cleaning and unblocking machine, which is actually designed and manufactured using a main body that defines a certain space, a group of external power transmission devices, a group of overload protection clutches, a set of flexible steel wire shaft assemblies with nylon protective tubes, a group of pipe cleaning and unblocking tools and other devices, and an external power rechargeable hand drill. In addition to the connection relationship between the components listed above and the connection method between other components, it can be further extended according to the conceptual guidance of the present invention and the prior art.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A drainage pipe cleaning and unclogging machine, characterized in that: The invention comprises a main body (1), wherein the main body (1) comprises an upper cover (2) and a lower cover (3) fixedly connected to each other, the upper cover (2) is annular, an internal cavity formed by the upper cover (2) and the lower cover (3) relative to each other is connected to the center of the outer portion of the upper cover (2), the upper cover (2) is connected to an external power input shaft (11) from the outside to the inside, and the outer end of the external power input shaft (11) is connected to an external rotating power (14) through a connecting piece; a power transmission shaft frame (10) is installed inside the upper cover (2), the external power input shaft (11) passes through the center of the power transmission shaft frame (10) through a bearing support, the inner end of the external power input shaft (11) is connected to a driving shaft (16) of an overload protection clutch (15) through a transmission shaft joint (26), and the overload protection clutch (15) is connected to the driving shaft (16) of the overload protection clutch (15) through a transmission shaft joint (26). ) is connected to one end of a steel wire flexible shaft (20) through a transmission shaft joint (26), and a nylon protective tube (21) is sleeved on the outer side of the steel wire flexible shaft (20); the lower cover (3) is in a circular groove shape matching the upper cover (2), and the inner cavity of the upper cover (2) and the lower cover (3) is combined to form a flexible shaft storage bin (4), and a steel wire flexible shaft assembly (19) composed of a steel wire flexible shaft (20) and a nylon protective tube (21) is sequentially arranged in the flexible shaft storage bin (4); the outer center of the upper cover (2) is connected to the bin cover (5) through a snap lock (6), and an outlet (7) is opened at the center of the bin cover (5), and the steel wire flexible shaft assembly (19) extends to the outside of the main body (1) through the outlet (7), and a cleaning and unblocking tool (22) is installed on the other end of the steel wire flexible shaft (20).

2. A drainage pipe cleaning and unclogging machine according to claim 1, characterized in that: The top platform of the upper cover (2) is provided with protrusions distributed at equal intervals, and the external power input shaft (11) forms an angle of 20° with the top platform.

3. A drainage pipe cleaning and unclogging machine according to claim 1, characterized in that: A carrying handle (8) is provided on one side of the main body (1).

4. A drainage pipe cleaning and unclogging machine according to claim 1, characterized in that: The overload protection clutch (15) comprises a driving shaft ball disc (1503), a driven shaft ball disc (1504), balls (1505), a ball retainer (1506), a driving shaft (16), a driven shaft (17), a driven shaft joint (1510), a compression spring (1507) and a spring adjustment sleeve (1508), wherein the driving shaft ball disc (1503) is fixed to the outer side of the driving shaft (16). The driven shaft (17) is a hollow shaft, the side of the driving shaft (16) away from the power transmission shaft frame (10) is sleeved with the inner side of the driven shaft (17), and the end of the driven shaft (17) that is biased toward the driving shaft ball disc (1503) is connected to the driven shaft ball disc (1504), and the driving shaft ball disc (1503) and the driven shaft ball disc (1504) are both provided with grooves distributed in an annular array, and the balls (1505 ) are arranged in a one-to-one correspondence in a groove between the driving shaft ball disc (1503) and the driven shaft ball disc (1504); the driving shaft (16) is provided with a ball retainer (1506) at a position between the driving shaft ball disc (1503) and the driven shaft ball disc (1504); the ball retainer (1506) is provided with a through hole corresponding to the position of the ball (1505); the diameter of the through hole is greater than the diameter of the ball (1505); the outer side of the driven shaft (17) is provided with a compression spring (1507); the spring adjustment sleeve (1508) is sleeved on the outer side of the compression spring (1507) and is fixedly connected to the driving shaft ball disc (1503) for applying an axial thrust to the compression spring (1507); the end of the driven shaft (17) away from the driving shaft (16) is connected to the transmission shaft joint (26) through a driven shaft joint (1510).

5. A drainage pipe cleaning and unclogging machine according to claim 1 or claim 4, characterized in that: A protective cover (1512) is provided inside the upper cover (2) and outside the overload protection clutch (15).

6. A drainage pipe cleaning and unclogging machine according to claim 1, characterized in that: The end of the nylon protective tube (21) located inside the upper cover (2) is fixed by a fixing clip (18).

7. A drainage pipe cleaning and unclogging machine according to claim 1, characterized in that: The center of the bottom end of the lower cover (3) protrudes toward the inside of the flexible shaft storage bin (4) to form a cylindrical boss (24), and the diameter of the cylindrical boss (24) is greater than the minimum circumferential diameter of the steel wire flexible shaft (20).

8. A drainage pipe cleaning and unclogging machine according to claim 1, characterized in that: The cleaning and unblocking tool (22) is a circular chain type unblocking tool.

9. A drainage pipe cleaning and unclogging machine according to claim 1, characterized in that: The bottom end of the lower cover (3) is connected with a support foot (25).

10. A method for cleaning and unblocking a drainage pipe, characterized in that: According to the drainage pipe cleaning and unblocking machine described in any one of claims 1 to 9, during the cleaning and unblocking operation, the drainage pipe cleaning and unblocking machine body (1) is first placed horizontally, and then the hexagon socket wrench (13) is connected and fixed with an external rotating power (14), the bin cover (5) is opened, the steel wire flexible shaft assembly (19) is taken out, and passed through the outlet (7) for about 1 meter, and then the bin cover (5) is screwed and locked; the cleaning and unblocking tool (22) is installed at the front end of the steel wire flexible shaft (20); the nylon protective tube (21) is held in one hand, and the steel wire flexible shaft assembly (19) is inserted into the pipe opening of the pipe to be unblocked, and then inserted as far as possible, and the operator manipulates the external rotating power (14) with one hand, inserts the hexagon socket wrench (13) into the hexagonal handle (12) at the end of the external power input shaft (11), and connects the power input; starts the power switch, The steel wire flexible shaft (20) is driven to rotate at high speed in the nylon protective tube (21), and the nylon protective tube (21) of the steel wire flexible shaft assembly (19) is held by the other hand to pull out the steel wire flexible shaft assembly (19) of appropriate length, and the arm is held and swung to push the steel wire flexible shaft assembly (19) through the outlet (7) and sequentially push it into the pipeline to be dredged, driving the cleaning and dredging cutter (22) fixed at the front end of the steel wire flexible shaft (20) to rotate at high speed in the pipeline, knocking and cutting to clean the blockage formed by the scale in the pipeline and the inner wall of the pipeline, and repeatedly pulling, pushing and moving the steel wire flexible shaft assembly (19) in the pipeline to complete the pipeline cleaning and dredging operation; after the dredging operation is completed, the steel wire flexible shaft assembly (19) is sequentially pushed into the flexible shaft storage bin (4), and the steel wire flexible shaft assembly (19) is neatly arranged in the flexible shaft storage bin (4), and the cleaning and dredging operation is completed.

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