Dredging device

Abstract

A dredger comprising: an elongated flexible shaft-like member; the accommodating part is provided with a cavity for accommodating the flexible shaft-shaped part; one end of the conveying part is connected to the storage part, and the storage part can rotate relative to the conveying part; a channel allowing the flexible shaft-shaped component to penetrate through is formed in the conveying component, and the channel communicates with the cavity; when the storage part rotates, the flexible shaft-shaped part is driven to rotate; the clamping assembly is arranged on the conveying component; the clamping assembly has a first state and a second state, and in the first state, the clamping assembly clamps the flexible shaft-shaped component, so that the flexible shaft-shaped component generates axial displacement when rotating; and in the second state, the clamping assembly releases clamping of the flexible shaft-shaped component, so that the flexible shaft-shaped component does not generate axial displacement during rotation.

Description

Technical Field

[0001] The invention relates to a pipeline cleaning tool, and more particularly to a pipeline dredging tool. Background Art

[0002] Sewer pipes are often clogged due to the accumulation and entanglement of debris such as hair and fibers, and therefore need to be cleaned with a pipe cleaner. In the prior art, a commonly used pipe cleaner is a flexible shaft pipe cleaner. When using the flexible shaft pipe cleaner, it is necessary to rotate the flexible shaft while pushing the flexible shaft with force, and both hands need to be coordinated, which is inconvenient to operate. For this reason, someone has studied a pipe cleaner that uses rollers to push the flexible shaft. In this product, multiple rollers surround the flexible shaft, which can convert the rotation of the flexible shaft into axial movement. When working, it is only necessary to rotate the flexible shaft, and the rotating flexible shaft is pushed axially after contacting the rollers. However, when this pipe cleaner is actually used, it often causes the flexible shaft to idle in place, that is, the flexible shaft cannot be pushed axially, or the flexible shaft is locked and cannot be effectively and automatically sent out or retreated. In addition, when the flexible shaft is pushed to the blocked part of the pipeline, it is no longer necessary to push the flexible shaft axially. Instead, the flexible shaft needs to rotate on its own to clear the debris in the pipeline. After the debris is cleared, the flexible shaft needs to be pushed axially again. In this process, alternating adjustment of flexible shaft pushing and rotation is required, but the existing clearing devices cannot effectively achieve this effect.

[0003] Therefore, technicians in this field are committed to developing a dredger that can easily perform alternating adjustment of the in-situ rotation and axial movement of the flexible shaft, and at the same time, can effectively prevent clamping when clamping the flexible shaft, thereby improving the efficiency of clearing debris. Summary of the invention

[0004] The existing dredging device cannot effectively realize the automatic pushing or retracting of the flexible shaft, nor can it effectively realize the alternating adjustment of the pushing and self-rotation of the flexible shaft, and the flexible shaft is easily clamped. In order to overcome these problems, the present invention provides a dredging device, comprising:

[0005] An elongated flexible shaft-like member;

[0006] A receiving component, wherein a cavity for receiving the flexible shaft-shaped component is provided in the receiving component;

[0007] A conveying component, one end of which is connected to the receiving component, and the receiving component is configured to be rotatable relative to the conveying component; a channel for the flexible shaft-like component to pass through is provided in the conveying component, and the channel is communicated with the cavity; wherein the flexible shaft-like component is driven to rotate when the receiving component rotates;

[0008] A clamping assembly, wherein the clamping assembly is arranged on the conveying component; the clamping assembly has a first state and a second state, wherein in the first state, the clamping assembly clamps the flexible shaft-like component so that the flexible shaft-like component generates axial displacement when rotating; in the second state, the clamping assembly releases the clamping of the flexible shaft-like component so that the flexible shaft-like component does not generate axial displacement when rotating.

[0009] Further, the clamping assembly includes a plurality of rolling components, which are arranged circumferentially around the flexible shaft-like component, wherein the plurality of rolling components include at least one movable rolling component, wherein, in the first state, the movable rolling component is in contact with the flexible shaft-like component; and in the second state, the movable rolling component releases contact with the flexible shaft-like component.

[0010] Furthermore, the clamping assembly also includes a control component, which is configured to drive the movable rolling component to move under the drive of an external force, so that the movable rolling component contacts the flexible shaft-like component or releases the contact with the flexible shaft-like component.

[0011] Furthermore, a movable seat is provided on the side wall of the conveying component, and the movable seat is configured to move radially along the conveying component under the drive of external force, and the movable rolling component is rotatably connected to one end of the movable seat; the other end of the movable seat is connected to the control component.

[0012] Further, the control component is rotatably connected to the conveying component, and the control component has a cam-shaped end. The control component is configured to: rotate in a first direction under the drive of an external force, and the cam-shaped end drives the movable seat to move in the direction of the flexible shaft-shaped component, so that the movable rolling component contacts the flexible shaft-shaped component; and rotate in a second direction, and the cam-shaped end releases the force on the movable seat, so that the movable roller component releases the contact with the flexible shaft-shaped component.

[0013] Furthermore, the plurality of rolling components further include a fixed rolling component, wherein the fixed rolling component is rotatably connected to a fixed seat, and the fixed seat is fixedly connected to the conveying component.

[0014] Furthermore, a buffer is provided between the control component and the movable seat.

[0015] Furthermore, a reset member is provided on the movable seat, and the reset member is configured such that after the force applied by the control component on the movable seat is released, the reset member drives the movable seat to move to an initial position.

[0016] Further, the control component comprises an annular portion sleeved on the end of the conveying component away from the receiving component, the movable rolling component is rotatably connected to the annular portion, and the annular portion is configured to swing relative to the conveying component.

[0017] Furthermore, the plurality of rolling components further include a fixed rolling component rotatably connected to the conveying component, the movable rolling component is located at an end of the annular portion, and the end of the annular portion swings relative to the conveying component under the driving force of an external force.

[0018] Furthermore, the control component also includes a control member, which is rotatably connected to the conveying component; wherein one end of the control member is connected to the annular portion, and the control member is configured to rotate relative to the conveying component under the drive of an external force, thereby driving the annular portion to swing.

[0019] Furthermore, a restoring member is provided on the control member, and the restoring member is configured to drive the control member back to an initial position after the external force applied to the control member disappears.

[0020] Furthermore, a thread is provided on a side wall of the conveying component at one end away from the receiving component, and the control component includes a tubular component sleeved on the conveying component and engaged with the thread.

[0021] Furthermore, the movable rolling component is rotatably disposed on a sliding block, and the sliding block is slidably connected to an inner wall of the conveying component.

[0022] Furthermore, a contact surface between the sliding block and the conveying component is an inclined surface inclined relative to the axial direction of the conveying component.

[0023] Further, the tubular component is configured to drive the sliding block to slide along the axial direction of the conveying component when rotating relative to the conveying component.

[0024] Furthermore, a rotation axis of each of the plurality of rolling components forms an acute angle with a central axis of the flexible shaft-like component.

[0025] Furthermore, each of the plurality of rolling components is inclined in a different direction relative to the flexible shaft-like component.

[0026] Furthermore, the storage component is provided with a driving member for driving the storage component to rotate relative to the conveying component.

[0027] Further, the driving member includes a handle eccentrically arranged relative to the central axis of the storage component, and / or a driving shaft coaxially arranged with the central axis of the storage component.

[0028] The present invention has the following technical effects: the present invention can conveniently perform the alternating adjustment of the in-situ rotation and axial movement of the flexible shaft-like component, and at the same time, can effectively prevent the flexible shaft-like component from being clamped when being clamped, thereby improving the efficiency of cleaning up debris.

[0029] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of Example 1;

[0031] Figure 2 is an exploded schematic diagram of Example 1;

[0032] Figure 3 yes Figure 1 Right view of;

[0033] Figure 4 yes Figure 3 Section view at section II;

[0034] Figure 5 is a schematic diagram of the clamping assembly of Example 1 in a released state;

[0035] Figure 6 is a schematic diagram of the control component in a released state;

[0036] Figure 7 is a schematic diagram of the clamping assembly of Example 1 in a clamped state;

[0037] Figure 8 is a front view of Example 2;

[0038] Fig. 9 is an axonometric view of Example 2;

[0039] Fig.10 is a schematic diagram of the position of the rolling component of Example 2;

[0040] Fig.11 yes Figure 8 Right view of;

[0041] Fig.12 yes Fig.11 Schematic diagram at section II-II;

[0042] Fig.13 is a front view of Example 3;

[0043] Fig.14 This is a schematic diagram after the storage components are removed;

[0044] Fig.15 yes Fig.14 Schematic diagram at section III-III;

[0045] Fig.16 is an exploded schematic diagram of the clamping assembly of Example 3;

[0046] Fig.17 is a schematic diagram of the clamping assembly in a released state;

[0047] Fig.18 is a schematic diagram of the clamping assembly in a clamped state;

[0048] Fig.19 This is a cross-sectional view of Example 3.

[0049] Among them, 10-dredge, 11-central axis, 20-storage component, 21-cavity, 23-driving shaft, 24-first shell, 25-extension part, 22-handle, 30-transport component, 31-channel, 32-second shell, 33-handheld part, 40-flexible shaft-shaped component;

[0050] 100-clamping assembly, 101-movable rolling component, 101a-rotating shaft, 102-fixed rolling component, 103-fixed seat, 104-control component, 105-movable seat, 106-cam-shaped end, 107-protruding piece, 108-pivoting shaft, 109-buffer, 110-resetting component, 111-rotating shaft;

[0051] 200-clamping assembly, 201-end of conveying component, 202-movable rolling component, 203-fixed rolling component, 203a-rotating shaft, 204-annular portion, 204a-end of annular portion, 205-control member, 206-pivot shaft, 207-groove, 208-rotating shaft, 209-reset member;

[0052] 300-clamping assembly, 301-movable rolling component, 302-control component, 303-sliding block, 304-inclined surface, 306-thread, 307-side wall. DETAILED DESCRIPTION

[0053] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0054] In the drawings, components with the same structure are indicated by the same numerical reference numerals, and components with similar structures or functions are indicated by similar numerical reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0055] A dredging device includes a long flexible shaft-like component 40, a receiving component 20, a conveying component 30 and a clamping assembly. A cavity 21 is provided inside the receiving component 20 for receiving the flexible shaft-like component 40. The receiving component 20 is rotatably connected to one end of the conveying component 30 along the length direction. A channel 31 extending along the length direction is provided inside the conveying component 30. The channel 31 is connected to the cavity 21, and the flexible shaft-like component 40 can extend to the outside of the conveying component 30 through the channel 31. The clamping assembly is provided on the conveying component 30 and can clamp the flexible shaft-like component 40 or release the clamping of the flexible shaft-like component 40. When the clamping assembly clamps the flexible shaft-like component 40 (the clamping assembly is in a clamping state), the storage component 20 is rotated, the flexible shaft-like component 40 rotates, and the clamping assembly interacts with the flexible shaft-like component 40 to generate an axial thrust, so that the flexible shaft-like component 40 is automatically pushed forward (i.e., the flexible shaft-like component 40 moves to the outside of the conveying component 30) or is stored backward into the storage component 20. When the clamping assembly releases the clamping of the flexible shaft-like component 40 (the clamping assembly is in a released state), the flexible shaft-like component 40 can be manually pulled forward to a specific use position, and by rotating the storage component 20, the flexible shaft-like component 40 only rotates, and is not conveyed forward or stored backward in the storage component 20.

[0056] The clamping assembly includes a plurality of rolling components, each of which can rotate around its own rotation axis. The plurality of rolling components are arranged along the circumference of the flexible shaft-like component 40. Preferably, an acute angle is formed between the rotation axis of each rolling component and the axial direction of the flexible shaft-like component 40. When the clamping assembly is in a clamped state, each rolling component contacts the flexible shaft-like component 40 from different angles, and the flexible shaft-like component 40 rotates. Since the rolling component abuts against the outer wall of the flexible shaft-like component 40, the rolling component is driven to rotate around its own central axis 11. At this time, the rolling component will be relatively displaced with the flexible shaft-like component 40 along the axial direction of the flexible shaft-like component 40, thereby pushing the flexible shaft-like component 40 to be transported forward along its axial direction or to be stored backward in the storage component 20.

[0057] At least one of the multiple rolling components is a movable rolling component. A control component is provided on the clamping assembly. By operating the control component, the corresponding movable rolling component can be brought into contact with or out of contact with the flexible shaft component 40, thereby achieving clamping or release of the flexible shaft component 40.

[0058] The dredging device provided by the present invention can realize the clamping or releasing of the flexible shaft-like component 40, so that the flexible shaft-like component 40 can switch between the two states of rotation in place and axial movement. In addition, when the clamping assembly clamps the flexible shaft-like component 40, it can also effectively prevent clamping, and can effectively realize the automatic delivery or retreat of the flexible shaft-like component 40.

[0059] The dredge of the present invention is described in detail below through a plurality of embodiments.

[0060] Example 1

[0061] Figure 1-7 Example 1 is shown. Figure 1 and Figure 2 As shown, the dredge 10 provided in this embodiment comprises a receiving component 20, a conveying component 30, a long flexible shaft component 40 and a clamping assembly 100. The receiving component 20 is provided with a cavity 21 for accommodating the flexible shaft component 40. The receiving component 20 is rotatably connected to one end of the conveying component 30 along the length direction. Under the driving force of an external force, the receiving component 20 can rotate relative to the conveying component 30. Figure 4 The conveying component 30 is provided with a channel 31 extending in the length direction, the channel 31 is communicated with the cavity 21, and the flexible shaft-like component 40 can extend to the outside of the conveying component 30 through the channel 31. The clamping assembly 100 is arranged on the conveying component 30, and can realize the clamping or releasing of the flexible shaft-like component 40.

[0062] In some embodiments, Figure 1 As shown, a handle 22 is provided on the storage part 20. The user can drive the storage part 20 to rotate relative to the conveying part 30 by holding the handle 22 with his hand. The handle 22 can be set at any suitable operation position on the outer surface of the storage part 20. For example, the handle 22 is set on the side of the storage part 20 opposite to the conveying part 30. Preferably, the handle 22 is parallel to the central axis 11 of the storage part 20. In some embodiments, a drive shaft 23 is provided on the storage part 20. The drive shaft 23 can be connected to an external power device. The power device can be a device that provides driving force such as a motor, a hydraulic device, a pneumatic device, etc. The power device provides power, which is transmitted to the storage part 20 through the drive shaft 23, thereby driving the storage part 20 to rotate relative to the conveying part 30. The drive shaft 23 can be coaxial with the central axis 11 of the storage part 20, and is located on the side of the storage part 20 opposite to the conveying part 30. It should be understood that, as Figure 2 As shown, the handle 22 and the drive shaft 23 can be simultaneously provided on the storage component 20. It should also be noted that the manner of driving the storage component 20 to rotate is not limited to the two described herein, and other manners that can drive the storage component 20 to rotate relative to the conveying component 30 can be applied to the present invention.

[0063] In some embodiments, the storage component 20 includes a first shell 24, and the interior of the first shell 24 forms a cavity 21 for accommodating the flexible shaft-shaped component 40. The first shell 24 can be formed by splicing two half shells. The shape of the first shell 24 can be circular, square or other suitable shapes, and the shape of the first shell 24 does not constitute a limitation to the present invention. Figure 2 and 4 As shown, one side of the first shell 24 extends toward the conveying member 30 to form an extension portion 25, and a passage 31 is provided inside the extension portion 25 for the flexible shaft-shaped member 40 to pass through. Figure 2 As shown, the conveying component 30 is coated on the outside of the extension portion 25. The conveying component 30 includes a second shell 32, and the second shell 32 can be set to a long cylindrical shape. It should be understood that the shape of the second shell 32 does not constitute a limitation of the present invention. Preferably, the second shell 32 can be formed by splicing two half-shells in a middle section, and a space for accommodating the extension portion 25 is formed between the two half-shells in a middle section, so as to be coated on the outside of the extension portion 25. After the two half-shells in a middle section are spliced ​​together, the two are fixed together by fasteners. In some embodiments, a channel for the flexible shaft-like component 40 to pass through can be directly formed inside the second shell 32, without the need to set the extension portion 25 on the first shell 24. In order to facilitate user operation, a hand-held portion 33 is provided on the conveying component 30, and preferably, the hand-held portion 33 is integrally formed with the second shell 32.

[0064] In some embodiments, the flexible shaft-like member 40 is in the shape of a serpentine tube and may be made of tightly wound spring wire.

[0065] In this embodiment, if Figure 3 and 4 As shown, the clamping assembly 100 includes a movable rolling component 101 and two fixed rolling components 102a and 102b, all of which are located in the conveying component 30. The three rolling components are arranged along the circumference of the flexible shaft-like component 40. The fixed rolling components 102a and 102b will not be displaced relative to the conveying component 30. Specifically, Figure 5As shown, the fixed rolling components 102a, 102b are rotatably disposed on their respective fixed seats 103a, 103b, and the fixed seats 103a, 103b are fixedly connected to the inner side of the conveying component 30. When the flexible shaft-like component 40 passes through the conveying component 30, it will always maintain contact with the fixed rolling components 102a, 102b. The movable rolling component 101 is connected to the control component 104, and by operating the control component 104, the movable rolling component 101 can be brought into contact with the flexible shaft-like component 40, or out of contact with the flexible shaft-like component 40. Specifically, the movable rolling component 101 is rotatably disposed on the movable seat 105, a portion of the movable seat 105 passes through the second shell 32 and is exposed outside the second shell 32, and the movable seat 105 can slide along the radial direction of the conveying component 30. As shown Figure 6 As shown, the control member 104 has a cam-shaped end 106, which contacts the movable seat 105. The control member 104 is pivotally connected to the outside of the second housing 32, for example, see Figure 2 and Figure 3 , oppositely arranged protrusions 107 are arranged on the outside of the second housing 32, the control component 104 is arranged between the two protrusions 107, and a pivot shaft 108 passes through each of the protrusions 107, so that the control component 104 can rotate around the pivot shaft 108. Figure 7 As shown, the user applies an external force on the control component 104 to move the control component 104 in a first direction X (see Figure 4 ) rotates, the cam-shaped end portion 106 of the control component 104 moves downward, so that the movable seat 105 moves along the radial direction of the conveying component 30 toward the flexible shaft-shaped component 40, and the movable rolling component 101 contacts the flexible shaft-shaped component 40, thereby clamping the flexible shaft-shaped component 40 together with the two fixed rolling components, and the clamping assembly 100 is in a clamped state; Figure 6 As shown, when external force is applied to cause the control component 104 to rotate in the second direction Y, the cam-shaped end 106 of the control component 104 moves upward, thereby releasing the pressure applied to the movable seat 105, and then releasing the clamping of the movable rolling component 101 on the flexible shaft component 40, that is, the clamping assembly 100 is in a released state.

[0066] In some embodiments, see Figure 5 and Figure 6 A buffer 109 is provided between the movable seat 105 and the control component 104. When the clamping assembly 100 is in a clamped state, when the flexible shaft-like component 40 moves relative to the conveying component 30, the buffer 109 can adjust the position between the movable rolling component 101 and the flexible shaft-like component 40, and can effectively prevent the flexible shaft-like component 40 from being clamped. The buffer 109 is elastic, for example, it can be a rubber pad, a spring or a spring.

[0067] In some embodiments, see Figure 5 and Figure 6 The movable seat 105 is also provided with a reset member 110. When the force applied by the control member 104 to the movable seat 105 is released, the movable seat 105 can move in a radial direction away from the flexible shaft-like member 40 along the conveying member 30 under the action of the reset member 110, so that the movable rolling member 101 is out of contact with the flexible shaft-like member 40. Preferably, the reset member 110 can be a spring sleeved outside the movable seat 105.

[0068] In some embodiments, the three rolling components are offset from the central axis 11 of the flexible shaft-like component 40. Figure 5 As shown, each rolling component is tilted relative to the flexible shaft-like component 40, and the rotation axis 101a of the movable rolling component 101 and the rotation axes 111a and 111b of the fixed rolling components 102a and 102b respectively form an acute angle with the central axis 11 of the flexible shaft-like component 40. Taking the fixed rolling component 102a as an example, Figure 4 As shown, the rotation axis 111a of the fixed rolling component 102a forms an acute angle α with the central axial direction 11. Preferably, the acute angle α is preferably 30-60°. Preferably, the inclination directions of the three rolling components relative to the flexible shaft component 40 are different, such as Figure 5 As shown, the fixed rolling component 102b is offset obliquely upward relative to the flexible shaft-like component 40, the fixed rolling component 102a is offset obliquely downward relative to the flexible shaft-like component 40, and the movable rolling component 101 is offset obliquely backward relative to the flexible shaft-like component 40. When the movable rolling component 101 contacts the flexible shaft-like component 40, the three rolling components have different offset directions and abut against the flexible shaft-like component 40 from different angles. When the flexible shaft-like component 40 rotates, the three rolling components will be driven to rotate together. The rolling components will be relatively displaced with the flexible shaft-like component 40 along the axial direction of the flexible shaft-like component 40, pushing the flexible shaft-like component 40 to move forward or backward along the axial direction.

[0069] The working process of the dredge 10 of this embodiment is as follows:

[0070] The control component 104 is rotated in the first direction, and the cam-shaped end 106 of the control component 104 pushes the movable seat 105, so that the movable rolling component 101 contacts the flexible shaft-like component 40, and the movable rolling component 101 clamps the flexible shaft-like component 40 together with the fixed rolling component. At this time, the clamping assembly 100 is in a clamped state. The operating handle 22 is used to rotate the storage component 20, or the storage component 20 is driven to rotate by a power device, thereby driving the flexible shaft-like component 40 to rotate. Since the rolling component abuts against the flexible shaft-like component 40, the rolling component rotates, and the flexible shaft-like component 40 is axially displaced relative to the rolling component, thereby pushing the flexible shaft-like component 40 to be transported forward or stored backward. Due to the action of the buffer 109, the relative position of the movable rolling component 101 and the flexible shaft-like component 40 in the radial direction can be adjusted, which can effectively prevent the flexible shaft-like component 40 from being clamped.

[0071] When the control component 104 is rotated in the second direction, the cam-shaped end 106 of the control component 104 releases the force on the movable seat 105, so that the movable rolling component 101 releases the force acting on the flexible shaft-like component 40. At this time, the multiple rolling components will not clamp the flexible shaft-like component 40, and the clamping assembly 100 is in a released state. Due to the action of the reset member 110, the movable seat 105 will move away from the flexible shaft-like component 40, and the movable rolling component 101 will be separated from the flexible shaft-like component 40. The operating handle 22 is used to rotate the storage component 20, or the storage component 20 is driven to rotate by a power device, thereby driving the flexible shaft-like component 40 to rotate. At this time, since there is no clamping of the rolling component, the flexible shaft-like component 40 rotates on its own without axial movement, which can effectively clean up debris.

[0072] Example 2

[0073] Figure 8-Figure 12 Embodiment 2 is shown. The difference between this embodiment and embodiment 1 is that the structure of the clamping assembly is different. For the same structure as embodiment 1, this embodiment will not be repeated, and only the clamping assembly 200 that is different from embodiment 1 is described below.

[0074] like Figure 8 , Fig. 9 and Fig.10 As shown, the clamping assembly 200 is arranged at the end 201 of the conveying member 30 away from the receiving member, and the clamping assembly 200 includes two movable rolling members 202a, 202b, a fixed rolling member 203 and a control member. The three rolling members 202a, 202b, and 203 are located at the end 201 of the conveying member 30 and are arranged along the circumference of the flexible shaft-like member 40 (see Fig.11The fixed rolling member 203 is rotatably connected to the conveying member 30. The fixed rolling member 203 can always keep in contact with the flexible shaft member 40. The control member includes an annular portion 204 sleeved on the conveying member 30, and the movable rolling members 202a and 202b are rotatably connected to the annular portion 204. The annular portion 204 can swing relative to the conveying member 30, such as Figure 8 and Fig. 9 As shown, the end 204a of the ring portion 204 on which the movable rolling component is mounted can swing back and forth along the direction AB. When the end 204a of the ring portion 204 swings toward the direction A close to the flexible shaft-like component 40, the movable rolling components 202a and 202b are driven to move toward the flexible shaft-like component 40 so as to abut against the flexible shaft-like component 40, and the flexible shaft-like component 40 is clamped together with the fixed rolling component 203. At this time, the clamping assembly 200 is in a clamped state. Similar to the first embodiment, when the flexible shaft-like component 40 rotates, the rolling components 202a, 202b, and 203 are driven to rotate, and the flexible shaft-like component 40 is displaced relative to the rolling components 202a, 202b, and 203 along the axial direction of the flexible shaft-like component 40, thereby pushing the flexible shaft-like component 40. When the end 204a of the movable rolling component installed on the annular portion 204 swings in the direction B away from the flexible shaft-like component 40, the movable rolling components 202a and 202b are out of contact with the flexible shaft-like component 40, and the clamping assembly 200 no longer clamps the flexible shaft-like component 40. At this time, the clamping assembly 200 is in a released state. Similar to Example 1, when the flexible shaft-like component 40 rotates, it will only rotate on its own and will not move axially.

[0075] In order to facilitate the swing control of the annular portion 204, the clamping assembly 200 can be switched between the clamping state and the releasing state. Fig. 9 As shown, the control component also includes a control component 205, and the ring portion 204 can be swung by operating the control component 205. Preferably, the control component 205 is in the shape of a rod, one end of which is connected to the ring portion 204, and the other end is a free end. The control component 205 is connected to the conveying component through a pivot shaft 206, and the control component 205 is driven in a first direction X, and the control component 205 rotates, driving the end 204a of the ring portion 204 to swing in a direction A close to the flexible shaft-like component 40, and the clamping assembly 200 is in a clamped state. The control component 205 is driven in a second direction Y, driving the end 204a of the ring portion 204 to swing in a direction B away from the flexible shaft-like component 40, and the clamping assembly 200 is in a released state. The control component 205 can be integrally formed with the ring portion 204. See Fig.10A reset member 209 may also be provided on the control member 205. When the external force applied to the control member 205 disappears, the reset member 209 may drive the control member 205 to return to the initial position. According to actual needs, the initial position may be set to a position where the movable rolling members 202a and 202b on the annular portion 204 always abut against the flexible shaft-like member 40, or may be set to a position where the movable rolling members 202a and 202b on the annular portion 204 do not contact the flexible shaft-like member 40. The reset member 209 may be an elastic element, which may be a spring, a torsion spring or a spring sheet, etc. Preferably, a torsion spring is selected as the reset member 209 in this embodiment, and the torsion spring is sleeved on the pivot shaft 206.

[0076] See also Fig.11 and Fig.12 The annular portion 204 may be provided with a groove 207, and the movable rolling components 202a, 202b may be rotatably disposed in the groove 207. It should be understood that other structures for rotatably mounting the movable rolling components 202a, 202b on the annular portion 204 may also be applicable to this embodiment.

[0077] In some embodiments, see Figure 9-11 , the three rolling components are offset from the central axis 11 of the flexible shaft-like component 40. Specifically, each rolling component is tilted relative to the flexible shaft-like component 40, and the rotation axes 208a, 208b of the movable rolling components 202a, 202b, and the rotation axis 208 of the fixed rolling component 203 all form an acute angle with the central axis 11 of the flexible shaft-like component 40, preferably, the acute angle is preferably 30-60°. Preferably, the inclination directions of the three rolling components relative to the flexible shaft-like component 40 are different, the movable rolling component 202b is offset obliquely upward relative to the flexible shaft-like component 40, the movable rolling component 202a is offset obliquely downward relative to the flexible shaft-like component 40, and the fixed rolling component 203 is offset obliquely forward relative to the flexible shaft-like component 40.

[0078] Example 3

[0079] Figure 13-Figure 18 Embodiment 3 is shown. The difference between this embodiment and embodiment 1 is that the structure of the clamping assembly 300 is different. For the same structure as embodiment 1, this embodiment will not be repeated, and only the clamping assembly 300300 that is different from embodiment 1 is described below.

[0080] like Fig.13 As shown, the clamping assembly 300 is arranged on the end of the conveying member 30 away from the receiving member 20, and the clamping assembly 300 includes three movable rolling members 301a, 301b, 301c and a control member 302. The three rolling members 301a, 301b, 301c are located in the conveying member 30 (see Fig.15), arranged along the circumference of the flexible shaft-like member 40. Fig.15 and 16 Each rolling member 301a, 301b, 301c is rotatably mounted on a respective sliding block 303a, 303b, 303c, and the sliding block 303a, 303b, 303c is disposed on the inner wall of the conveying member 30, and the sliding block 303a, 303b, 303c can slide relative to the conveying member 30 along its axial direction. Fig.18 As shown, when the sliding blocks 303a, 303b, 303c are located at the first position, the rolling components 301a, 301b, 301c abut against the flexible shaft-like component 40 to clamp the flexible shaft-like component 40. Fig.17 As shown, when the sliding blocks 303a, 303b, 303c are located at the second position, there is no contact between the rolling members 301a, 301b, 301c and the flexible shaft-like member 40, and the clamping of the flexible shaft-like member 40 is released.

[0081] The connection relationship between the sliding blocks 303a, 303b, and 303c and the conveying member 30 is the same. The sliding block 303a is used as an example for description. Fig.19 As shown, the contact surface between the sliding block 303a and the conveying member 30 is an inclined surface 304, that is, the inclined surface 304 is inclined relative to the axial direction of the flexible shaft-like member 40. By setting the inclined surface 304, when the sliding blocks 303a, 303b, and 303c are located at the first position or the second position, the radial distance of the three sliding blocks 303a, 303b, and 303c along the flexible shaft-like member 40 changes, so that the distance between the three rolling members 301a, 301b, and 301c changes, thereby clamping the flexible shaft-like member 40 or releasing the clamping of the flexible shaft-like member 40. Preferably, the sliding blocks 303a, 303b, and 303c are respectively embedded in the side walls of the conveying member 30.

[0082] The control component 302 is used to control the movement of the sliding block 303, so as to switch the sliding block 303 between different positions. Fig.16As shown, a thread 306 is provided on the outer wall of one end of the conveying component 30 away from the receiving component 20, and the control component 302 is selected to be a tubular component sleeved on the conveying component 30, and the inner side of the tubular component is meshed with the thread 306. By rotating the tubular component, the axial movement of the tubular component can be achieved. A side wall 307 is provided on one side of the tubular component along the axial direction, and the side wall 307 is connected to the ends of the sliding blocks 303a, 303b, and 303c. When the tubular component moves toward the receiving component 20 along the thread 306, the sliding blocks 303a, 303b, and 303c are driven to move along the inclined surface 304, and the rolling components 301a, 301b, and 301c are driven to move inward, clamping the flexible shaft-like component 40, and the clamping assembly 300 is in a clamped state. When the cylindrical component is operated to move away from the storage component 20, the rolling components 301a, 301b, 301c are disengaged from the flexible shaft component 40, and the clamping assembly 300 is in a released state. It should be understood that the control component 302 is not limited to the cylindrical component engaged with the thread 306 herein, and other control components 302 that can realize the movement of the sliding block 303 can also be applied to this embodiment.

[0083] Similar to embodiments 1 and 2, the three rolling components 301a, 301b, 301c are offset from the central axis 11 of the flexible shaft-like component 40, and each rolling component forms an acute angle with the central axis of the flexible shaft-like component 40. Preferably, the acute angle is preferably 30-60°. Preferably, the three rolling components 301a, 301b, 301c have different inclination directions relative to the flexible shaft-like component 40.

[0084] The clamping assemblies in the above three embodiments all include three rolling components. It should be understood that the specific number of rolling components does not constitute a limitation to the present invention, that is, the number of rolling components can be set to 2 or more than 3 according to actual needs.

[0085] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A dredging device, comprising: An elongated flexible shaft-like member; A receiving component, wherein a cavity for receiving the flexible shaft-shaped component is provided in the receiving component; A conveying component, one end of which is connected to the receiving component, and the receiving component is configured to be rotatable relative to the conveying component; a channel for the flexible shaft-like component to pass through is provided in the conveying component, and the channel is communicated with the cavity; wherein the flexible shaft-like component is driven to rotate when the receiving component rotates; A clamping assembly, wherein the clamping assembly is arranged on the conveying component; the clamping assembly has a first state and a second state, wherein in the first state, the clamping assembly clamps the flexible shaft-like component so that the flexible shaft-like component generates axial displacement when rotating; in the second state, the clamping assembly releases the clamping of the flexible shaft-like component so that the flexible shaft-like component does not generate axial displacement when rotating.

2. The dredger according to claim 1, wherein: The clamping assembly includes a plurality of rolling components, which are arranged around the circumference of the flexible shaft-like component, wherein the plurality of rolling components include at least one movable rolling component, wherein in the first state, the movable rolling component is in contact with the flexible shaft-like component; and in the second state, the movable rolling component releases contact with the flexible shaft-like component.

3. The dredger according to claim 2, wherein: The clamping assembly further includes a control component, which is configured to drive the movable rolling component to move under the drive of an external force, so that the movable rolling component contacts the flexible shaft-like component or releases the contact with the flexible shaft-like component.

4. The dredger according to claim 3, wherein: A movable seat is arranged on the side wall of the conveying component, and the movable seat is configured to move radially along the conveying component under the drive of external force. The movable rolling component is rotatably connected to one end of the movable seat; the other end of the movable seat is connected to the control component.

5. The dredger according to claim 4, wherein: The control component is rotatably connected to the conveying component, and the control component has a cam-shaped end. The control component is configured to: rotate in a first direction under the drive of an external force, and the cam-shaped end drives the movable seat to move in the direction of the flexible shaft-shaped component, so that the movable rolling component contacts the flexible shaft-shaped component; and rotate in a second direction, and the cam-shaped end releases the force on the movable seat, so that the movable roller component releases the contact with the flexible shaft-shaped component.

6. The dredge according to claim 4, wherein: The plurality of rolling components further include a fixed rolling component, wherein the fixed rolling component is rotatably connected to a fixed seat, and the fixed seat is fixedly connected to the conveying component.

7. The dredge according to claim 5, wherein: A buffer is arranged between the control component and the movable seat.

8. The clearing tool as claimed in claim 5, wherein a reset member is disposed on the movable seat, and the reset member is configured such that after the force applied by the control component on the movable seat is released, the reset member drives the movable seat to move to an initial position.

9. The dredger according to claim 3, wherein: The control component comprises an annular portion sleeved on an end of the conveying component away from the receiving component, the movable rolling component is rotatably connected to the annular portion, and the annular portion is configured to swing relative to the conveying component.

10. The dredge according to claim 9, wherein: The plurality of rolling components further include a fixed rolling component rotatably connected to the conveying component, and the movable rolling component is located at an end of the annular portion, and the end of the annular portion swings relative to the conveying component under the driving of an external force.

11. The dredge according to claim 10, wherein: The control component also includes a control member, which is rotatably connected to the conveying component; wherein one end of the control member is connected to the annular portion, and the control member is configured to rotate relative to the conveying component under the drive of an external force, thereby driving the annular portion to swing.

12. The dredge according to claim 11, wherein: The control member is provided with a restoring member, and the restoring member is configured to drive the control member to return to an initial position after the external force applied to the control member disappears.

13. The dredge according to claim 3, wherein: A thread is arranged on a side wall of the conveying component at one end away from the receiving component, and the control component comprises a tubular component which is sleeved on the conveying component and meshed with the thread.

14. The dredge according to claim 13, wherein: The movable rolling component is rotatably disposed on a sliding block, and the sliding block is slidably connected to the inner wall of the conveying component.

15. The dredge according to claim 14, wherein: A contact surface between the sliding block and the conveying member is an inclined surface inclined relative to an axial direction of the conveying member.

16. The dredge according to claim 15, wherein: The cylindrical member is configured to drive the sliding block to slide along the axial direction of the conveying member when the cylindrical member rotates relative to the conveying member.

17. The dredge according to claim 2, wherein: The rotation axis of each of the plurality of rolling members forms an acute angle with the central axis of the flexible shaft-like member.

18. The dredge according to claim 17, wherein: Each of the plurality of rolling members is inclined in a different direction relative to the flexible shaft-like member.

19. The dredge according to claim 1, wherein: The storage component is provided with a driving member for driving the storage component to rotate relative to the conveying component.

20. The dredge according to claim 19, wherein: The driving member comprises a handle arranged eccentrically with respect to a central axis of the receiving component, and / or a driving shaft arranged coaxially with the central axis of the receiving component.

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