Anti-knotting drum type dredging machine

By designing a combination structure of a fixed sleeve and a rotating bushing in the drum-type drain cleaner, the problem of the flexible shaft getting tangled in the flexible shaft box was solved, enabling smooth rotation of the guide tube and improving cleaning efficiency.

CN223780923UActive Publication Date: 2026-01-09ZHEJIANG JIAHONG TOOL MFG CO LTD
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Patent Information

Application Number
CN202520721947.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-01-09
Estimated Expiration
2035-04-16

AI Technical Summary

Technical Problem

The flexible shaft of existing drum-type drain cleaners is prone to tangling inside the flexible shaft box, which affects cleaning efficiency.

Method used

The design includes components such as a flexible shaft box, a fixed sleeve, a guide tube, a rotating bushing, an inner liner, and a fixed plate. The fixed sleeve covers the space between the rotating bushing and the flexible shaft box, and the rotating bushing is supported on the inner liner by bearings. The guide tube is linked with the rotating bushing to avoid direct contact and reduce jamming.

Benefits of technology

This effectively avoids the problem of the flexible shaft getting tangled inside the flexible shaft box, ensuring smooth rotation and improving cleaning efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-knotting drum-type dredging machine. The anti-knotting drum-type dredging machine is provided with a flexible shaft box, a fixing sleeve, a guide pipe, a rotating lining, a lining and a fixing disc, the flexible shaft box is hollow and provided with two openings, a fixing sleeve is fixed to one opening, the outer contour of the fixing sleeve covers the space between the flexible shaft box and the rotating bush and is fixed to the flexible shaft box, and the space between the rotating bush and the flexible shaft box is filled with the fixing sleeve. The interior of the fixing sleeve is hollow to facilitate penetration of one side of the guide pipe; the rotating lining is located between the fixing sleeve and the lining, the rotating lining is only connected with one side of the lining in a coupling mode, the rotating lining is provided with a groove so that the other side of the guide pipe can be placed conveniently, the guide pipe and the rotating lining can be kept in linkage, the other end of the lining is fixed to the fixing disc, and the fixing disc is fixed to the other opening of the flexible shaft box. The technical scheme solves the technical problem of how to prevent the flexible shaft from being knotted in the flexible shaft box.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of daily necessities, specifically speaking, a kind of drum type dredging machine using pipeline cleaning, which can avoid the knot problem of flexible shaft by unique internal structure design. BACKGROUND

[0002] Drum type dredging machine belongs to a kind of pipeline cleaning special tool, the current drum type dredging machine mainly designs support, motor, belt, flexible shaft box, flexible shaft, inner lining etc., motor rotates by driving belt on flexible shaft box to drive flexible shaft box and flexible shaft rotation and forward and backward conveying, flexible shaft box has guide pipe inside, when flexible shaft box rotates, it synchronously drives guide pipe to rotate, the guide pipe has the function of making flexible shaft transverse advance and retreat, i.e.

[0003] In order to fix guide pipe, the current drum type dredging machine generally designs movable disc or inner lining structure, wherein movable disc is designed with guide pipe inside, and inner lining is designed with guide pipe outside. The way of arranging guide pipe inside movable disc, since bearing needs to be installed between guide pipe and rotating box, gap between movable disc and inner wall of flexible shaft box is inevitable, so there is space for flexible shaft to knot at this position. The way of arranging guide pipe outside inner lining, since there is larger gap between inner lining and inner wall of flexible shaft box, it is more likely to cause knot problem of flexible shaft at this position. Therefore, in order to facilitate the use of drum type dredging machine, the above knot problem needs to be improved. SUMMARY

[0004] The utility model aims at providing a kind of drum type dredging machine that prevents knot, and solves the technical problem: how to avoid knot of flexible shaft in flexible shaft box.

[0005] A kind of drum type dredging machine that prevents knot, design has flexible shaft box, fixed sleeve, guide pipe, rotating bushing, inner lining, fixed disc;Flexible shaft box is hollow inside and two openings, wherein one opening is fixed with fixed sleeve, the outer contour of the fixed sleeve covers the space between flexible shaft box and rotating bushing and is fixed with flexible shaft box, so that the space between rotating bushing and flexible shaft box is filled;The inside of the fixed sleeve is hollow to facilitate the side of guide pipe to penetrate;Rotating bushing is between fixed sleeve and inner lining, the rotating bushing is only connected with one side of inner lining, the rotating bushing has groove to facilitate the other side of guide pipe to make guide pipe and rotating bushing keep linkage, the other end of inner lining is fixed on fixed disc, and the other opening of fixed disc and flexible shaft box is fixed.

[0006] The hollow end cap is fixed on the fixed sleeve, and the guide pipe penetrates the fixed sleeve, and the end cap is connected with the guide pipe through a bearing, so that the fixed position of the guide pipe is changed from the inside of the soft shaft box to the outside of the soft shaft box.

[0007] The inner liner fills the space of the rotating bushing and the fixed disc or the soft shaft box as a whole.

[0008] The inner liner has a protruding part in the direction of the rotating bushing, and a bearing is arranged on the protruding part, and the rotating bushing is connected with the protruding part of the inner liner through the bearing, so that the rotating bushing is supported by the inner liner.

[0009] The fixed sleeve has a plurality of screw holes, the soft shaft box also has a plurality of screw holes at corresponding positions, and the end cap also has screw holes at corresponding positions, so that the end cap, the fixed sleeve and the soft shaft box are fixed together through screws and screw holes.

[0010] The end cap is a conical structure with flat top and bottom, and the inside of the end cap is hollow.

[0011] The guide pipe is arc-shaped and is driven to rotate by the soft shaft in the soft shaft box or the guide pipe; the guide pipe is fixed with a fixed ring at the position of the end cap, and a screw or a fixed pin is pressed together with the soft shaft through the fixed ring and the end of the guide pipe, so that the soft shaft is flexibly fixed.

[0012] The soft shaft box has a plurality of hollow holes on the outer side wall thereof, and the plurality of hollow holes are one or more; the two openings of the soft shaft box are oppositely arranged.

[0013] The fixed disc has a plurality of disc claws, and screws are arranged on the disc claws to fix the disc claws to the soft shaft box and the inner liner.

[0014] The number of the disc claws is 6-8, and the disc claws have mounting positions at different inner diameters, so that the disc claws are respectively fixed to the soft shaft box and the inner liner.

[0015] The soft shaft box is internally provided with a fixed sleeve, a rotating bushing and an inner liner, the components fill most of the internal space of the soft shaft box, so that the knot problem caused by the soft shaft jumping over a component during use is avoided; the rotating bushing is separately designed and fixed and supported on the inner liner through a bearing, so that the resistance during work is smaller, the rotating bushing is driven to rotate by the guide pipe and does not directly contact the fixed sleeve, so that the rotation is not blocked and the rotation is easier, the original static state is changed into a state of simulating the rotation state of the guide pipe and the soft shaft, so that the soft shaft is kept close to synchronization, and the knot problem is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of a drum type dredging machine;

[0017] Figure 2 This is a schematic diagram of a drum-type drain cleaning machine from another angle;

[0018] Figure 3 This is a schematic diagram of the structure of the drum-type drain cleaning machine, including the display bracket and motor, with the rotating parts removed.

[0019] Figure 4 It is a drum-type drain cleaner that removes Figure 3 A schematic diagram of the rotating part remaining after the component;

[0020] Figure 5 It is a schematic diagram showing the inner liner, flexible shaft, rotating bushing, fixed sleeve, and end cap;

[0021] Figure 6 yes Figure 5 An exploded view of the components;

[0022] Figure 7 yes Figure 4 A schematic diagram of the component from another angle;

[0023] Figure 8 yes Figure 7 A schematic diagram of the decomposition process;

[0024] Figure 9 This is a schematic diagram of the rotating bushing;

[0025] Figure 10 This is a schematic diagram of a flexible shaft box;

[0026] Figure 11 This is a schematic diagram showing the internal cross-sectional view, in which the section lines are omitted;

[0027] In the picture

[0028] 1. Guide tube;

[0029] 2. To wear a hat;

[0030] 3. Fixing sleeve;

[0031] 4. Rotate the bushing; 41. Side groove;

[0032] 5. Lining; 51. Protrusion;

[0033] 6. Fixed disc; 61. Disc claws;

[0034] 7. Flexible shaft box; 71. Hollow hole; 72. Opening;

[0035] 8. Flexible shaft;

[0036] 9. Bearings;

[0037] 10. Electric motor;

[0038] 11. A support;

[0039] 12. A cylindrical rod;

[0040] 13. A fixing ring. DETAILED DESCRIPTION

[0041] Please refer to Figures 1 to 11 , a drum unblocking machine of anti-knotting in the figure, the motor 10, the support 11, the flexible shaft box 7, the fixed sleeve 3, the guide pipe 1, the rotating bush 4, the inner bush 5, the fixed disc 6, the end cap 2 and other components are designed; wherein the support 11 supports other components, the motor 10 drives the flexible shaft box 7 to rotate through the belt, the flexible shaft box 7 in turn drives the fixed sleeve 3, the fixed disc 6 and the flexible shaft 8 to rotate, the fixed sleeve 3 together with the end cap 2 wraps the one end of the guide pipe 1 inside, the guide pipe 1 is driven by the flexible shaft 8 to rotate the rotating bush 4 in the process of rotation, the inner bush 5 supports the rotating bush 4 through the bearing 9 to ensure the flexible rotation of the rotating bush 4, and the fixed disc 6 fixes the inner bush 5. The design core of the case is to independently separate the rotating bush 4 led out by the flexible shaft 8, which is assembled in a very flexible and not easy to jam manner with other components, which does not affect its rotation, at the same time, the external contour of the fixed sleeve 3 covers the space between the flexible shaft box 7 and the rotating bush 4 as a whole and is fixed with the flexible shaft box 7, and in addition, the rotating bush 4 is fixed and supported in front and back positions by the inner bush 5 and the fixed sleeve 3, thereby avoiding the knotting problem of the flexible shaft 8. It should be noted that the above components can also be optimized and expanded in terms of shape, structure, number, position and other design factors according to needs.

[0042] As shown in the figure, the flexible shaft box 7 in the figure is a hollow cylindrical structure as a whole, which is penetrated at the top and bottom positions in the figure to form two symmetrical openings 72, one of which is convenient for installing the fixed sleeve 3 and the end cap 2, and the other is convenient for installing the fixed disc 6. Like the existing flexible shaft box 7, the top of the flexible shaft box 7, i.e. the outward side wall, is designed with two symmetrical hollow holes 71, the shape, number and position of which can be adjusted according to needs.

[0043] As shown in the figure, the end cap 2 in the figure is a circular cone structure with flat top and bottom as a whole, which is hollow inside to facilitate the penetration of one end of the guide pipe 1, and a bearing 9 is designed at the penetration to make the end cap 2 and the guide pipe 1 relatively rotate and fixed.

[0044] As shown in the figure, the fixed sleeve 3 in the figure is a hollow structure similar to a disc, which is designed with multiple screw holes, and the top wall of the top of the soft shaft box 7 and the side wall of the end cap 2 are also designed with screw holes at the corresponding positions, so that these components can be fixed to each other through screws and screw holes. The outer diameter of the fixed sleeve 3 corresponds to the outer diameter of the rotating lining 5, and is slightly larger than the caliber of the opening 72 of the soft shaft box 7 at this position, thereby filling the longitudinal space between the opening 72 of the soft shaft box 7 and the rotating lining 4, which is the space where the soft shaft 8 is prone to knotting.

[0045] As shown in the figure, the guide pipe 1 in the figure adopts an arc-shaped structure as a whole, which can adopt an existing shape structure or be further optimized, and the port thereof inside the soft shaft box 7 can be designed with a flared structure, which is driven to rotate by the soft shaft 8. After the unclogging machine is not in use and the soft shaft 8 is stored, in order to fix the soft shaft 8, a fixed ring 13 structure can be installed at the end portion of the guide pipe 1 outside, so that screws or pins pass through the fixed ring 13 and the guide pipe 1 to be pressed together with the soft shaft 8 inside the guide pipe 1 to prevent the soft shaft 8 from running.

[0046] As shown in the figure, the rotating lining 4 in the figure is a structure similar to a circular cake with a certain thickness, which is between the fixed sleeve 3 and the lining 5. The rotating lining 4 has a central hole inside to facilitate the placement of a bearing 9 and the shaft connection with the lining 5, and extends transversely from the central hole to the side wall to form a channel-like passage structure to facilitate the placement of the middle and lower portions of the guide pipe 1, so that the linkage of the guide pipe 1 and the rotating lining 4 can be guaranteed, that is, the guide pipe 1 drives the rotating lining 4 to rotate.

[0047] As shown in the figure, the lining 5 in the figure is a structure similar to a cylinder as a whole, and the overall thickness of the lining 5 can fill the space between the rotating lining 4 and the fixed disc 6 or the soft shaft box 7, so that another longitudinal filling space formed can also avoid the knotting of the soft shaft 8. The central position of the lining 5 extends outward to form a protruding portion 51 structure with a certain inner diameter, so that a bearing 9 can be placed at the position of the protruding portion 51, so that the rotating lining 5 is axially connected with the cover protruding portion 51 through the bearing 9, so that the rotating lining 4 is supported and fixed by the lining 5, and the rotating lining 4 can be more flexible to rotate and will not appear to be stuck, reducing the resistance of the soft shaft 8 during work.

[0048] As shown in the figure, the fixed disc 6 in the figure is installed on the inner liner 5 and kept opposite to the rotating bush 4, the fixed disc 6 is similar to the structure of the diverging disc as a whole, that is, it has a plurality of disc claws 61, for example, 6-8 disc claws 61, through the design of the disc claws 61, the disc claws 61 can be fixed to the soft shaft box 7 and the inner liner 5 through screws, so as to keep the linkage of the fixed disc 6, the inner liner 5 and the soft shaft box 7. The installation positions of the above-mentioned screws are at different positions, that is, the installation positions are designed at different inner diameters of the disc claws 61, so as to facilitate the installation between the components. The above-mentioned fixed disc 6 is sleeved on a cylindrical rod 12 according to the existing mode, the function of the cylindrical rod 12 can be referred to the prior art.

[0049] As shown in the figure, the soft shaft 8 of the embodiment is an existing component, when the soft shaft box 7 rotates forward, it rotates around its own axis and transports towards the front end of the dredging machine to complete the pipeline cleaning work, when the soft shaft box 7 reverses, it retracts into the soft shaft box 7, when the above-mentioned soft shaft 8 transversely transports, it drives the guide pipe 1 to rotate, and then drives the rotating bush 4 to rotate, the specific cooperation structure of the above-mentioned soft shaft 8 and the soft shaft box 7 can be referred to the prior art.

[0050] The above-mentioned specific embodiments are only used to explain the technical scheme, and are not used to limit the technical scheme. In the description of the technical scheme, it should be explained that the terms such as "upper", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, only for the convenience of describing the technical scheme and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation to the technical scheme.

[0051] At the same time, in the description of the technical scheme, it should be explained that unless otherwise explicitly specified and limited, the terms "fixed", "cooperated" should be understood in a broad sense, for example, it can be fixedly connected, or can be detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the technical scheme can be understood according to the specific situation.

[0052] Although the embodiments of the technical scheme have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the technical scheme, the scope of the technical scheme is defined by the appended claims and their equivalents.

Claims

1. A knot prevention drum unblocker characterized by: The design has soft axle box (7), fixed sleeve (3), guide pipe (1), rotating bushing (4), inner bushing (5), fixed disc (6); soft axle box (7) is hollow inside and two openings (72), one of which (72) is fixed with fixed sleeve (3), the outer contour of the fixed sleeve (3) covers the space between the soft axle box (7) and the rotating bushing (4) and is fixed with the soft axle box (7), so that the space between the rotating bushing (4) and the soft axle box (7) is filled; the fixed sleeve (3) is hollow inside to facilitate the side of the guide pipe (1) to penetrate; the rotating bushing (4) is between the fixed sleeve (3) and the inner bushing (5), the rotating bushing (4) is only shaft connected with one side of the inner bushing (5), the rotating bushing (4) has a groove to facilitate the other side of the guide pipe (1) to be placed so that the guide pipe (1) and the rotating bushing (4) are linked, the other end of the inner bushing (5) is fixed on the fixed disc (6), and the fixed disc (6) is fixed with the other opening (72) of the soft axle box (7); the inner bushing (5) fills the space between the rotating bushing (4) and the fixed disc (6) or the soft axle box (7) as a whole.

2. A drum unblocker according to claim 1, wherein: A hollow end cap (2) is fixed on the fixed sleeve (3), the guide pipe (1) penetrates the fixed sleeve (3), and the end cap (2) is shaft connected with the guide pipe (1) through the bearing (9), so that the fixed position of the guide pipe (1) is changed from the inside of the soft axle box (7) to the outside of the soft axle box (7).

3. A drum unblocker according to claim 1 or 2, wherein: The inner bushing (5) has a protruding protruding portion (51) towards the rotating inner bushing (5), and the bearing (9) is arranged on the protruding portion (51), and the rotating inner bushing (5) is shaft connected with the protruding portion (51) of the inner bushing (5) through the bearing (9), so that the rotating bushing (4) is supported by the inner bushing (5).

4. A drum unblocker according to claim 1, wherein: The fixed sleeve (3) has a plurality of screw holes, the soft axle box (7) also has a plurality of screw holes at the corresponding positions, and the end cap (2) also has screw holes at the corresponding positions, and the end cap (2), the fixed sleeve (3) and the soft axle box (7) are fixed together through screws and screw holes.

5. A drum-type unblocker according to claim 2, characterized in that: The end cap (2) is a conical structure with flat top and bottom, and is hollow inside.

6. A drum-type unblocker according to claim 2, characterized in that: The guide pipe (1) is fixed with a fixing ring (13) at the position of the end cap (2), and the screw or fixing pin penetrates the fixing ring (13) and the end of the guide pipe (1) and is extruded together with the flexible shaft (8), so as to flexibly fix the flexible shaft (8).

7. A drum-type unblocker according to claim 1, characterized in that: The soft axle box (7) has a hollow hole (71) on the outward side wall thereof, and the hollow hole (71) is one or more; the two openings (72) of the soft axle box (7) are oppositely arranged.

8. A drum unblocker according to claim 1, wherein: The fixed disc (6) has a plurality of disc claws (61), and screws are installed on the disc claws (61) to fix the disc claws (61) to the soft axle box (7) and the inner bushing (5).

9. A drum unblocker according to claim 8, wherein: The number of the disc claws (61) is 6-8, and the disc claws (61) have installation positions along different inner diameters, so as to realize the fixing of the disc claws (61) to the soft axle box (7) and the inner bushing (5) respectively.