CN106854890B - Flexible shaft locking mechanism of dredging machine and dredging machine - Google Patents
Flexible shaft locking mechanism of dredging machine and dredging machine Download PDFInfo
- Publication number
- CN106854890B CN106854890B CN201710107036.3A CN201710107036A CN106854890B CN 106854890 B CN106854890 B CN 106854890B CN 201710107036 A CN201710107036 A CN 201710107036A CN 106854890 B CN106854890 B CN 106854890B
- Authority
- CN
- China
- Prior art keywords
- flexible shaft
- locking
- bearing seat
- matched
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/30—Devices to facilitate removing of obstructions in waste-pipes or sinks
- E03C1/302—Devices to facilitate removing of obstructions in waste-pipes or sinks using devices moved through the pipes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mounting Of Bearings Or Others (AREA)
- Soil Working Implements (AREA)
Abstract
The application discloses a flexible shaft locking mechanism of a dredging machine and the dredging machine, wherein the flexible shaft locking mechanism comprises a shell, the shell is provided with a hollow part, and the end part of the hollow part is provided with at least two first notches along the axial direction; the flexible shaft locking mechanism further comprises: the locking end of the elastic locking sheet is positioned outside the flexible shaft; the locking ring comprises an outer ring and an inner ring, the outer ring and the inner ring are connected through a connecting strip, the outer ring is sleeved outside the hollow portion, the inner ring is sleeved inside the hollow portion, the connecting strip is matched with the corresponding first notch, the inner ring is sleeved outside the elastic locking piece, and the inner ring is provided with a locking side wall matched with the locking end of the elastic locking piece. When the outer ring rotates, the inner ring can be driven to rotate in the hollow part, and the locking side wall of the inner ring is matched with the locking end to press or release the elastic sheet, so that the flexible shaft is locked or unlocked; according to the locking ring, locking or unlocking operation can be achieved by rotating the locking ring, and the whole operation mode is simple and reliable.
Description
Technical Field
The invention relates to dredging equipment, in particular to a flexible shaft locking mechanism of a dredging machine and the dredging machine.
Background
Sewer pipes in life are indispensable, for example, toilet sewer pipes, when foreign matters fall into sewer pipes, cleaning is very troublesome, especially sewer pipes with water return bends are difficult to clean, the sewer pipes cannot be cleaned after long-term use, dirt and urine alkali are accumulated and pressed at the water return bends, and the sewer pipes are easy to block.
The dredging machine is used for clearing up the instrument that the mediation blocked up the pipeline, and it drives the flexible axle through pivoted drum and rotates and dredge to the pipeline, and under non-user state, the flexible axle can be taken in the drum of dredging machine, can pull out in the drum when using. The flexible shaft locking structure of the existing dredging machine is of a sliding type, so that the flexible shaft is locked by sliding backwards with force during use, and the structural form is inconvenient to use and is relatively labor-consuming.
Disclosure of Invention
Aiming at the problems, the invention provides a flexible shaft locking mechanism of the dredging machine and the dredging machine, and solves the problem that the conventional flexible shaft locking mechanism is inconvenient to operate.
The technical scheme adopted by the invention is as follows:
a flexible shaft locking mechanism of a dredging machine comprises a shell, wherein the shell is provided with a hollow part for a flexible shaft to pass through, and the end part of the hollow part is provided with at least two first notches along the axial direction; the flexible shaft locking mechanism further comprises:
the elastic locking piece comprises a connecting end and a locking end, the connecting end of the elastic locking piece is relatively fixed with the hollow part, and the locking end of the elastic locking piece is positioned on the outer side of the flexible shaft;
the locking ring comprises an outer ring and an inner ring, the outer ring and the inner ring are connected through a connecting strip, the outer ring is sleeved on the hollow portion, the inner ring is sleeved on the hollow portion, the connecting strip is matched with the corresponding first notch, the inner ring is sleeved on the elastic locking piece, the inner ring is provided with a locking side wall matched with the locking end of the elastic locking piece, and when the locking ring rotates, the locking side wall is used for pressing or releasing the locking end of the elastic locking piece.
When the outer ring rotates, the inner ring can be driven to rotate in the hollow part, and the locking side wall of the inner ring is matched with the locking end to press or release the elastic sheet, so that the flexible shaft is locked or unlocked; according to the locking ring, locking or unlocking operation can be achieved by rotating the locking ring, and the whole operation mode is simple and reliable.
Optionally, the locking side wall has an eccentric area, the eccentric side wall being in contact with the resilient locking tab.
The eccentric side wall is directly contacted with the elastic locking piece, and the matching mode enables the assembly to be simple.
The radial dimension in locking lateral wall eccentric district and non-eccentric district is different, lead to the oppression also different to the elasticity stay, when in the great part of radial dimension and elasticity stay cooperation, the elasticity stay is not compressed tightly, because self elastic effect, the locking end is in the unblock state, otherwise when the less part in radial dimension district cooperates with the elasticity stay, the locking end is compressed tightly, and support with the flexible axle and lean on, the locking end is in the locking state, thereby realize the switching of two kinds of states through rotating the lock ring.
Optionally, one side of the locking end of the elastic locking piece, which is back to the flexible shaft, protrudes outwards, and the locking side wall has an inner concave portion matched with the convex portion of the bending portion.
Optionally, the locking end of the elastic locking piece has a bending portion bending toward one side of the flexible shaft, and the bending portion and the flexible shaft corresponding portion have an arc-shaped side wall.
The structure of the arc-shaped side wall enables the contact area between the bending part and the flexible shaft to be large, and locking operation can be well achieved.
Optionally, the side wall of the hollow part has second notches arranged along the circumferential direction, the second notches being in communication with the corresponding first notches.
The provision of the second recess effectively increases the angle of rotation of the locking ring, i.e. the connecting strip is movable between the sides of the second recess.
Optionally, the flexible shaft locking mechanism further comprises a hollow protective cover, the protective cover is fixed at the end of the hollow part, and the connecting end of the elastic locking piece is fixed on the protective cover.
Optionally, the protective cover has a hollow extension portion extending into the hollow portion, and the connecting end of the elastic locking piece is inserted into the hollow extension portion or fixed on the hollow extension portion through a fastener.
Optionally, the hollow part has a limit step, and the locking ring is located between the limit step and the protecting cover.
The position of the locking ring can be limited by arranging the limiting step and the protective cover, the locking ring is prevented from being separated from the hollow part, and the protective pipe can be used for installing the elastic locking sheet, so that the assembly is convenient.
The application also discloses a dredging machine, which comprises the flexible shaft locking mechanism.
The beneficial effects of the invention are: when the outer ring rotates, the inner ring can be driven to rotate in the hollow part, and the locking side wall of the inner ring is matched with the locking end to press or release the elastic sheet, so that the flexible shaft is locked or unlocked; according to the locking ring, locking or unlocking operation can be achieved by rotating the locking ring, and the whole operation mode is simple and reliable.
Description of the drawings:
fig. 1 is a schematic structural view of the dredger according to embodiment 1;
fig. 2 is a sectional view of the dredger according to embodiment 1;
FIG. 3 is the exploded view of the dredger of embodiment 1 with the flexible shaft removed;
FIG. 4 is an exploded view of the drum;
FIG. 5 is a cross-sectional view of the drum;
FIG. 6 is a partial exploded view of the flexible shaft locking mechanism at the front end cover of the dredger according to embodiment 1;
FIG. 7 is a partial exploded view of the flexible shaft locking mechanism at the front end cover of the dredger according to embodiment 1 from another perspective;
FIG. 8 is a partial exploded view of the flexible shaft;
fig. 9 is a cross-sectional view at the head cover of the dredger of embodiment 1;
fig. 10 is an exploded view of the front end cap of the dredger according to embodiment 1;
fig. 11 is an exploded view from another perspective at the head cover of the dredger of embodiment 1;
fig. 12 is an exploded view of the dredger according to embodiment 2.
The figures are numbered:
1. a flexible shaft; 2. a drum; 3. a drum wheel body; 4. an opening; 5. a main housing; 6. a front end cover; 7. a drum wheel mounting cavity 7; 8. a connector; 9. a motor; 10. a third bearing; 11. hollowing out holes; 12. a first mounting groove; 13. a recessed portion; 14. a drain hole; 15. a seal ring; 16. a waterproof plug; 17. a threaded sleeve; 18. a recessed region; 19. a boss portion; 20. an annular region; 21. an accommodating chamber; 22. an outer shaft; 23. an inner shaft; 24. a first connecting member; 25. a second connecting member; 26. a first screw; 27. a limiting part; 28. a limiting column; 29. connecting sleeves; 30. a through hole; 31. connecting columns; 32. a threaded hole; 33. a hollow part; 34. a first notch; 35. a second recess; 36. locking a ring; 37. an elastic locking sheet; 38. an outer ring; 39. an inner ring; 40. a connecting strip; 41. locking the side wall; 42. an inner concave portion; 43. a protective cover; 44. a hollow extension; 45. a connecting end; 46. a locking end; 47. a bending section; 48. a limiting step; 49. an arcuate sidewall; 50. a decorative sleeve; 51. fixing a bearing seat; 52. a first bearing; 53. a movable bearing seat; 54. a second bearing; 55. a central fulcrum screw; 56. positioning blocks; 57. positioning holes; 58. steel balls; 59. an operating handle; 60. a spring plate; 61. extruding surface; 62. a spring; 63. an installation port; 64. a base body; 65. connecting blocks; 66. a first through hole; 67. a second pass-through aperture; 68. assembling a groove; 69. a third pass-through aperture; 70. a spring mounting groove; 71. a shielding portion; 72. a connecting body; 73. an arc-shaped portion; 74. a pressing area; 75. a notch; 76. an outer frame.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, 2 and 3, the dredging machine comprises a casing, a drum 2, a flexible shaft 1 and a driving mechanism for driving the drum 2 to rotate.
As shown in fig. 3, 4 and 5, the drum 2 comprises a drum body 3, an opening 4 is formed at one end of the drum body 3, a containing cavity 21 for containing the flexible shaft 1 is formed in the drum body 3, the opening 4 is communicated with the containing cavity 21, a drain hole 14 communicated with the containing cavity 21 is formed in the side wall of the drum body 3, and a waterproof plug 16 is installed on the drain hole. Make when the dredging machine uses through setting up wash port 14 and waterproof plug 16, waterproof plug 16 can be with the inside water-stop of drum 2, greatly reduced is because the electrically conductive potential safety hazard that the liquid outflow brought, and uses the completion back at the dredging machine, takes out waterproof plug 16, can increase the inside circulation of air of gyro wheel, and the evaporation of water with higher speed can effectively prevent 1 rustiness of flexible axle.
As shown in fig. 5, in the present embodiment, a threaded sleeve 17 is embedded in the drainage hole 14, the inner side wall of the threaded sleeve 17 is provided with threads, and the waterproof plug 16 is in threaded fit with the threaded sleeve 17. The arrangement of the thread on the drain hole 14 is troublesome, the thread area can be conveniently formed at the position of the drain hole 14 by arranging the thread sleeve 17, so that the waterproof plug 16 can be screwed in or out, and the waterproof plug 16 can be reliably arranged on the drain hole 14 in a thread matching mode. In other embodiments, internal threads may be provided directly within the drain hole 14.
As shown in fig. 4 and 5, in the present embodiment, a seal ring 15 is provided between the drain hole 14 and the waterproof plug 16. The sealing performance between the waterproof plug 16 and the drain hole 14 can be improved by providing the gasket 15.
As shown in fig. 4 and 5, in the present embodiment, the drainage hole 14 is disposed on the side wall away from the opening 4, the end of the drum body 3 away from the opening 4 includes a recessed area 18 located at the middle and an annular area 20 located at the periphery of the recessed area 18, and the drainage hole 14 is disposed in the annular area 20. The recessed area 18 of the drum body 3 is used for cooperating with a driving mechanism, the recessed area 18 enables the moisture in the drum 2 to be accumulated at the position of the annular area 20, and the drainage hole 14 is arranged in the annular area 20 to facilitate the drainage of the internal moisture.
The drum 2 and the related structure of the driving mechanism of the embodiment form the drum driving structure of the dredging machine, specifically, as shown in fig. 3 and 4, the driving mechanism includes an output shaft, a connector 8 is installed on the output shaft of the driving mechanism, the drum 2 is rotatably installed on the casing, the open end of the drum 2 is rotatably matched with the casing, the recessed area 18 is matched with the connector 8, and the output shaft drives the drum 2 to rotate synchronously through the connector 8 when rotating. The connector 8 extends into the recessed area 18, the connector and the recessed area can rotate together in a matching mode, and compared with a mode of fixing through screws, the drum wheel 2 and the driving mechanism are convenient to disassemble and assemble; the recessed area 18 of the drum 2 allows the coupling head 8 to be inserted, enabling a more compact construction.
As shown in fig. 3 and 4, in the present embodiment, the recessed area 18 has a plurality of protrusions 19 therein, the connecting head 8 has recesses 13 thereon for cooperating with the protrusions 19, and the protrusions 19 and the recesses 13 cooperate with each other. The convex part 19 and the concave part 13 are matched to form a concave-convex structure which is mutually embedded, so that slipping is effectively prevented, the drum wheel 2 and the connector 8 are good in stress effect, and the connector 8 only needs to be embedded into the concave area 18 during installation. In other embodiments, a plurality of concave portions may be disposed in the concave region, and a convex portion may be disposed on the connector and cooperate with the concave portions.
As shown in fig. 2, in the embodiment, the driving mechanism is a motor 9, and other existing driving structures can be adopted in practical applications, in the embodiment, the motor 9 includes a stator and a rotor disposed in a casing. The output shaft mentioned in this embodiment may be directly the rotating shaft of the rotor, or may not be, when the output shaft is not the rotating shaft of the rotor, the rotating shaft of the rotor drives the output shaft to rotate through the transmission assembly.
In this embodiment, as shown in fig. 3, a third bearing 10 is mounted at the open end of the drum 2, and the drum 2 is rotatably engaged with the housing through the third bearing 10. One end of the drum wheel 2 is matched with the shell in a rotating mode through a third bearing 10, the other end of the drum wheel is matched with the connecting head 8, and the structural mode can ensure that the drum wheel 2 can be reliably installed on the dredging machine in a rotating mode.
The structure of the casing and the drum 2 in the embodiment, which are mutually matched, forms a drum protecting structure of the dredger, and specifically, as shown in fig. 2, a drum mounting cavity 7 is formed in the casing, and the drum 2 is rotatably mounted in the drum mounting cavity 7. The drum 2 is arranged in the drum installation cavity 7, and the drum 2 is not easy to rub with external objects or the ground when rotating, so that the operation is comfortable and safer.
As shown in fig. 2 and 3, the housing has a hollowed hole 11 communicating with the drum installation cavity 7, the hollowed hole 11 corresponding to the movement area of the drainage hole 14. The hollowed-out hole 11 corresponds to the movement area of the drainage hole 14 so that the drainage hole 14 can be rotated to the hollowed-out hole 11, thereby enabling the waterproof plug 16 to be detached.
As shown in fig. 3, in the present embodiment, the housing includes a front cover 6 and a main housing 5 connected to each other, one end of the main housing 5 has a first mounting groove 12, and the hollow hole 11 is located on the main housing 5, that is, the hollow hole 11 penetrates through a sidewall of the first mounting groove 12. A space enclosed by the front end cover 6 and the first mounting groove 12 is a drum wheel mounting cavity 7, the driving mechanism is mounted on the main shell 5, and one end of an output shaft of the driving mechanism is positioned on the first mounting groove 12; the front end cover 6 covers the first mounting groove 12, the opening end of the drum body 3 is rotatably matched with the front end cover 6 through the third bearing 10, and one end of the drum body 3, which is far away from the opening 4, is located in the first mounting groove 12 and is matched with an output shaft of the driving mechanism (specifically, in the embodiment, the connector 8 mounted on the output shaft is matched with the recessed area 18 of the drum 2) and rotates together with the output shaft. During assembly, the drum 2 and the third bearing 10 are pressed into the front end cover 6, and then the main shell 5 is connected with the front end cover 6, so that the output shaft of the driving mechanism is in matched transmission with the drum 2, and the drum 2 is positioned inside the front end cover 6 and the main shell 5 to play a protection role.
As shown in fig. 2 and 8, the flexible shaft 1 comprises an outer shaft 22 and an inner shaft 23 which are connected with each other, and the outer shaft 22 and the inner shaft 23 are detachably matched. One end of the inner shaft 23 is used for being connected with the drum 2, one end of the outer shaft 22 is used for extending into a pipeline to conduct dredging operation, the flexible shaft 1 can be a spring flexible shaft, and the working end of the outer shaft 22 is provided with a stirring head. The outer shaft 22 and the inner shaft 23 are detachably engaged, and the structure is such that when the outer shaft 22 is knotted or damaged, the flexible shaft can be pulled out, and then the outer shaft 22 and the inner shaft 23 are separated to replace the outer shaft 22 with a new one.
As shown in fig. 2 and 8, in the present embodiment, a first connecting member 24 is fixed to one end of the outer shaft 22, a second connecting member 25 is fixed to one end of the inner shaft 23, and the first connecting member 24 and the second connecting member 25 are nested and engaged and fixed to each other by a fastening member. The first connecting part 24 comprises a connecting sleeve 29 and a limiting column 28 extending into the outer shaft 22, the connecting sleeve 29 is provided with a through hole 30, the second connecting part 25 comprises a connecting column 31 and the limiting column 28 extending into the inner shaft 23, the connecting column 31 is provided with a threaded hole 32, the connecting column 31 is sleeved on the connecting sleeve 29, the threaded hole 32 corresponds to the through hole 30, a fastener passes through the through hole 30 and then is matched with the threaded hole 32 on the connecting column 31, and in the embodiment, the fastener on the flexible shaft 1 is a first screw 26. The connecting column 31 is sleeved in the outer shaft 22 or the inner shaft 23, the connecting pieces are reliably fixed, the local size of the flexible shaft is not easy to be overlarge, the connecting sleeve 29 and the connecting column 31 are mutually nested and fixed through a fastener, and the two connecting pieces are convenient to disassemble and assemble. In other embodiments, the first connector 24 may be fixed to the end of the inner shaft 23 and the second connector 25 may be fixed to the end of the outer shaft 22.
As shown in fig. 2, in this embodiment, the outer diameter of the connecting sleeve 29 is the same as the outer diameter of the flexible shaft.
As shown in fig. 2 and 8, in the present embodiment, the inner shaft 23 has a stopper 27 protruding outward. The limiting portion 27 protruding outwards is used for limiting the flexible shaft from being excessively output, if the limiting portion 27 is not arranged, the flexible shaft inside the drum wheel 2 is too short due to the fact that the flexible shaft is too long in output when the flexible shaft is used, and the drum wheel 2 and the flexible shaft do not have enough friction force to drive the flexible shaft to rotate, so that the flexible shaft cannot be retracted.
In this embodiment, the inner shaft has the same diameter as the outer shaft and has a hardness greater than that of the outer shaft, and the inner shaft is used for cooperating with the drum to realize the driving function. The inner shaft has high hardness and large tension, can increase the friction force between the inner shaft and the inner wall of the drum wheel, can be shorter in length under the condition of the same friction force, and can effectively save space and reduce weight. In order to make the hardness of the inner shaft greater than that of the outer shaft, the inner shaft and the outer shaft can be made of different materials (the material of the inner shaft is harder, and the material of the outer shaft is softer), and besides the different materials, the same material can be used, and when the same material is used, the pitch of the inner shaft is smaller than that of the outer shaft.
The dredging machine of the embodiment comprises a flexible shaft locking mechanism, specifically, as shown in fig. 6 and 7, the front end cover 6 is provided with a hollow part 33 for the flexible shaft 1 to pass through, and the end part of the hollow part 33 is provided with at least two first notches 34 along the axial direction; the flexible shaft locking mechanism comprises:
the elastic locking sheet 37, the elastic locking sheet 37 includes link 45 and locking end 46, the link 45 of the elastic locking sheet 37 is relatively fixed with hollow part 33, the locking end 46 of the elastic locking sheet 37 locates at the flexible shaft 1 outside;
and the locking ring 36, the locking ring 36 comprises an outer ring 38 and an inner ring 39, the outer ring 38 and the inner ring 39 are connected through a connecting strip 40, the outer ring 38 is sleeved on the hollow part 33, the inner ring 39 is sleeved on the hollow part 33, the connecting strip 40 is matched with the corresponding first notch 34, the inner ring 39 is sleeved on the elastic locking piece 37, the inner ring 39 is provided with a locking side wall 41 matched with a locking end 46 of the elastic locking piece 37, and when the locking ring 36 rotates, the locking side wall 41 is used for pressing or releasing the locking end 46 of the elastic locking piece 37.
When the outer ring 38 rotates, the inner ring 39 can be driven to rotate in the hollow part 33, and the locking side wall 41 of the inner ring 39 is matched with the locking end 46 to press or release the elastic sheet, so that the flexible shaft 1 is locked or unlocked; according to the application, the locking or unlocking operation can be realized by rotating the locking ring 36, and the whole operation form is simple and reliable.
The locking side wall 41 has an eccentric area, the eccentric side wall being in contact with the resilient locking tab. The radial dimension of locking lateral wall eccentric area is different with the radial dimension in non-eccentric district, lead to the oppression also inequality to elasticity stay 37, when the great part of radial dimension cooperates with elasticity stay 37, elasticity stay 37 is not compressed tightly, because the effect of self elasticity, locking end 46 is in the unblock state, otherwise when the less part of radial dimension district cooperates with elasticity stay 37, locking end 46 is compressed tightly to support with flexible axle 1 and lean on, locking end 46 is in the locking state, thereby realize the switching of two kinds of states through rotating lock ring 36. The eccentric side wall is directly contacted with the elastic locking piece, and the matching mode enables the assembly to be simple.
As shown in fig. 7, in this embodiment, the locking end 46 of the elastic locking piece 37 protrudes outward from the side facing away from the flexible shaft 1, and the locking sidewall 41 has an inner concave portion 42 that is partially engaged with the protruding portion 19 of the bending portion 47.
As shown in fig. 7, in the present embodiment, the locking end 46 of the elastic locking piece 37 has a bending portion 47 bending toward one side of the flexible shaft 1, and the bending portion 47 has an arc-shaped sidewall 49 corresponding to the flexible shaft 1. The structure of the arc-shaped side wall 49 enables the contact area between the bending part 47 and the flexible shaft 1 to be larger, and the locking operation can be better realized.
As shown in fig. 6 and 7, in the present embodiment, the side wall of the hollow portion 33 has second recesses 35 arranged in the circumferential direction, the second recesses 35 communicating with the corresponding first recesses 34. The provision of the second recess 35 effectively increases the angle of rotation of the locking ring 36, i.e. the connecting strip 40 is movable between two sides of the second recess 35.
As shown in fig. 6 and 7, in the present embodiment, the flexible shaft locking mechanism further includes a hollow protecting cover 43, the protecting cover 43 is fixed at the end of the hollow portion 33, and the connecting end 45 of the elastic locking piece 37 is fixed on the protecting cover 43. The protecting cover 43 has a hollow extension 44 extending into the hollow portion 33, and the connecting end 45 of the elastic locking piece 37 is inserted into the hollow extension 44 or fixed to the hollow extension 44 by a fastener.
As shown in fig. 7, in the present embodiment, the hollow portion 33 has a limit step 48, and the locking ring 36 is located between the limit step 48 and the protecting cover 43. The position of the locking ring 36 can be limited by arranging the limiting step 48 and the protective cover 43, the locking ring is prevented from being separated from the hollow part 33, and the protective pipe can be used for installing the elastic locking sheet 37, so that the assembly is convenient.
The dredging machine of the embodiment further comprises a flexible shaft telescopic control mechanism, specifically, as shown in fig. 9, 10 and 11, the flexible shaft telescopic control mechanism comprises a fixed bearing seat 51, a movable bearing seat 53 and an operating handle 59;
the fixed bearing seat 51 is fixed with the shell, one side of the fixed bearing seat 51 is provided with two first bearings 52, and the other side is provided with two second bearings 54;
the movable bearing seat 53 is rotatably arranged on the fixed bearing seat 51 or rotatably arranged on the shell, one side of the movable bearing seat 53 is provided with a first bearing 52, the other side of the movable bearing seat is provided with a second bearing 54, the three first bearings 52 are mutually matched to form a first bearing 52 group, the three second bearings 54 are mutually matched to form a second bearing 54 group, gaps among the three first bearings 52 and gaps among the three second bearings 54 are used for allowing the flexible shaft 1 to pass through, when the first bearing 52 group is matched with the flexible shaft 1, the first bearing 52 group is used for driving the rotating flexible shaft 1 to advance or retreat, when the second bearing 54 group is matched with the flexible shaft 1, the second bearing 54 group is used for driving the rotating flexible shaft 1 to advance or retreat, and when the flexible shaft 1 rotates around the same direction, the first bearing 52 group and the second bearing 54 group drive the flexible shaft 1 to move in opposite directions;
and the operating handle 59 is rotatably arranged on the fixed bearing seat 51 or rotatably arranged on the shell, and the operating handle 59 is matched with the movable bearing seat 53 and used for driving the movable bearing seat 53 to rotate.
The operating handle 59 can drive the movable bearing seat 53 to rotate, so that a corresponding bearing set can be selected to be matched with the flexible shaft 1, when the operating handle 59 drives the first bearing 52 of the movable bearing seat 53 to rotate towards the first bearing 52 of the fixed bearing seat 51, the first bearing 52 set is matched with the flexible shaft 1, and when the operating handle 59 drives the second bearing 54 of the movable bearing seat 53 to rotate towards the second bearing 54 of the fixed bearing seat 51, the second bearing 54 set is matched with the flexible shaft 1. Under the unchangeable prerequisite of flexible axle 1 rotation direction, through rotating which group's bearing group of selection that operating handle 59 can be convenient and fast and the cooperation of flexible axle 1 to can convenient and fast's control flexible axle 1 go forward or retreat, and the rotation direction of flexible axle 1 is unchangeable, and when flexible axle 1 retreated, the foreign matter of tip was difficult for droing. When the operating handle 59 controls the movable bearing seat 53 to be in a balance position, the two bearing sets are not matched with the flexible shaft 1, and the flexible shaft 1 can rotate in situ and cannot move back and forth. This application can control the flexible axle through an operating handle and stretch out and draw back, and is safe convenient more. In other embodiments, two ends of the fixed bearing seat 51 may be respectively provided with a first bearing 52 and a second bearing 54, two ends of the movable bearing seat 53 may be respectively provided with two first bearings 52 and two second bearings 54, and other structures are the same as those of the flexible shaft telescoping control mechanism of the embodiment.
As shown in fig. 9, 10 and 11, in the present embodiment, the axes of the three first bearings 52 of the first bearing 52 set are all different from the axis of the flexible shaft, and the axes of the three first bearings 52 are different from each other in pairs; the axes of the three second bearings 54 of the second bearing 54 group are all different from the axis of the flexible shaft 1, and the axes of the three second bearings 54 are different from each other in pairs. The term "mutually different" in this application means neither intersecting nor parallel. When three bearings in the same group are matched with the flexible shaft 1, the flexible shaft 1 is driven to rotate due to friction force generated by pressure, and the flexible shaft 1 is driven to move forwards or backwards due to a certain angle of the bearings.
As shown in fig. 9, 10 and 11, in the present embodiment, two first bearings 52 and two second bearings 54 of the fixed bearing seat 51 are symmetrically disposed, the first bearings 52 and the second bearings 54 of the movable bearing seat 53 are symmetrically disposed, when the first bearing 52 group is matched with the flexible shaft 1, the three first bearings 52 are uniformly distributed around the axis of the flexible shaft, and when the second bearing 54 group is matched with the flexible shaft 1, the three second bearings 54 are uniformly distributed around the axis of the flexible shaft. The flexible shaft axis refers to the axis of the matched part of the flexible shaft 1 when the flexible shaft 1 is matched with the corresponding bearing.
In this embodiment, a positioning mechanism for positioning the position of the operating handle 59 is further included. The positioning mechanism can position the position of the operating handle 59 to a predetermined position, and the operating handle 59 can be always held at one position when no external force is applied.
As shown in fig. 9, 10 and 11, in the present embodiment, the positioning mechanism includes:
a spring mounting groove 70 provided on the handle;
a spring 62 mounted in the spring mounting groove 70;
a plurality of positioning holes 57 arranged on the housing in an arc shape;
and the steel balls 58 are arranged in the spring mounting groove 70, one side of each steel ball is abutted against the outer end of the spring 62, and the other side of each steel ball is matched with the corresponding positioning hole 57.
The operating handle 59 can drive the steel balls 58 to move between different positioning holes 57 when rotating, and the springs 62 can fix the steel balls 58 on the corresponding positioning holes 57 to realize the positioning function.
As shown in fig. 10 and 11, in the present embodiment, the side wall of the hollow portion 33 has an installation opening 63, the fixed bearing seat 51 is fixed in the hollow portion 33 after passing through the installation opening 63, the operating handle 59 and the movable bearing seat 53 are rotatably installed on the fixed bearing seat 51 by the same central fulcrum screw 55, the decoration sleeve 50 is fixed outside the hollow portion 33, the decoration sleeve 50 includes shielding portions 71 located on both sides of the installation opening 63, and the positioning holes 57 are provided on one side of the shielding portions 71 facing the operating handle 59. The operating handle 59 and the movable bearing seat 53 are rotatably arranged on the fixed bearing seat 51 through the same central fulcrum screw 55, the structure is compact, the operating handle 59 and the movable bearing seat 53 can rotate around the same axis, and the control is more convenient and reliable.
As shown in fig. 9, 10 and 11, in the present embodiment, the positioning block 56 is fixed to the shielding portion 71, and the positioning hole 57 is provided in the positioning block 56. The positioning hole 57 is formed in the positioning block 56, so that the positioning hole 57 can be conveniently machined, and the positioning block 56 can be mounted on the shielding part 71 through a fastener in practical application or directly clamped on the shielding part 71.
As shown in fig. 10, in the present embodiment, the fixed bearing seat 51 includes a seat body 64, the first bearings 52 are installed on two sides of the seat body 64, the seat body 64 has two connection blocks 65 extending outward and spaced apart from each other, and the connection blocks 65 have first through holes 66 for the central fulcrum screws 55 to pass through; the middle part of the movable bearing seat 53 is provided with a second through hole 67 for the central fulcrum screw 55 to pass through, and the second through hole 67 is positioned between the two connecting blocks 65; the upper end of the operating handle 59 has an assembly groove 68, both sides of the assembly groove 68 have third through holes 69 through which the center fulcrum screws 55 pass, both sides of the assembly groove 68 are respectively engaged with the outer side walls of the corresponding connecting blocks 65, and the center fulcrum screws 55 connect the finishing cover 50, the operating handle 59, the movable bearing housing 53 and the fixed bearing housing 51 together. The second through hole 67 is located between the two connecting blocks 65, and two sides of the assembling groove 68 are respectively matched with the outer side walls of the corresponding connecting blocks 65, so that the structure is more compact on the premise of reliable matching; the central fulcrum screw 55 connects the decorative sleeve 50, the operating handle 59, the movable bearing seat 53 and the fixed bearing seat 51 together, and the whole structure is compact and reliable.
As shown in fig. 9, 10 and 11, in the present embodiment, a spring plate 60 is mounted on a side of the movable bearing housing 53 facing away from the fixed bearing housing 51, and the operating handle 59 has a pressing surface 61 that engages with the spring plate 60. When the operating handle 59 rotates, the pressing surface 61 is driven to rotate, the pressing surface 61 drives the spring piece 60 to apply pressure to the movable bearing seat 53, so that the movable bearing seat 53 is pressed to rotate around the central fulcrum screw 55, the space of one end of the movable bearing seat 53 is reduced relative to the fixed bearing seat 51, and a bearing group corresponding to the end is matched with the flexible shaft 1.
As shown in fig. 10, the pressing surface 61 is located in the assembling groove 68, the spring plate 60 includes a connecting body 72 and two arc-shaped portions 73 symmetrically arranged on the connecting body 72, the connecting body 72 is fixed on the middle portion of the movable bearing seat 53, the arc-shaped portions 73 have pressing areas 74 protruding to one side of the movable bearing seat 53, and one end of the arc-shaped portions 73 away from the connecting body 72 is engaged with the pressing surface 61.
Example 2
As shown in fig. 12, a dredger comprises a casing with a gap 75 extending through the casing, a drum 2 rotatably mounted in the gap 75, and an outer frame 76 below the drum 2 and in the gap 75. When the dredger is used, the outer frame faces the ground, the notch 75 and the outer frame 76 below the drum wheel 2 can protect the drum wheel 2, and the drum wheel 2 is not easy to rub with the ground when rotating.
In this embodiment, the housing further has a driving mechanism, one end of an output shaft of the driving mechanism is located on the notch 75, one end of the drum 2 is rotatably engaged with the housing through the third bearing 10, and the other end of the drum 2 is engaged with the output shaft of the driving mechanism and rotates together with the output shaft.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.
Claims (9)
1. A flexible shaft locking mechanism of a dredging machine comprises a shell, wherein the shell is provided with a hollow part for a flexible shaft to pass through, and is characterized in that at least two first notches are axially arranged at the end part of the hollow part; the flexible shaft locking mechanism further comprises:
the elastic locking piece comprises a connecting end and a locking end, the connecting end of the elastic locking piece is relatively fixed with the hollow part, and the locking end of the elastic locking piece is positioned on the outer side of the flexible shaft;
the locking ring comprises an outer ring and an inner ring, the outer ring and the inner ring are connected through a connecting strip, the outer ring is sleeved on the hollow part, the inner ring is sleeved in the hollow part, the connecting strip is matched with the corresponding first notch, the inner ring is sleeved on the elastic locking sheet, the inner ring is provided with a locking side wall matched with the locking end of the elastic locking sheet, and when the locking ring rotates, the locking side wall is used for pressing or releasing the locking end of the elastic locking sheet;
the flexible shaft telescopic control mechanism comprises a fixed bearing seat, a movable bearing seat and an operating handle;
the fixed bearing seat is fixed with the shell, two first bearings are installed on one side of the fixed bearing seat, and two second bearings are installed on the other side of the fixed bearing seat;
the flexible shaft is arranged on the fixed bearing seat in a rotating mode or is arranged on the shell in a rotating mode, one side of the movable bearing seat is provided with a first bearing, the other side of the movable bearing seat is provided with a second bearing, the three first bearings are matched with each other to form a first bearing group, the three second bearings are matched with each other to form a second bearing group, gaps among the three first bearings and gaps among the three second bearings are used for allowing the flexible shaft to pass through, the first bearing group is used for driving the rotating flexible shaft to move forward or backward when matched with the flexible shaft, the second bearing group is used for driving the rotating flexible shaft to move forward or backward when matched with the flexible shaft, and when the flexible shaft rotates in the same direction, the directions in which the flexible shaft is driven by the first bearing group and the second bearing group to move are opposite;
the operating handle is rotatably arranged on the fixed bearing seat or the shell and is matched with the movable bearing seat for driving the movable bearing seat to rotate;
the positioning mechanism is used for positioning the position of the operating handle;
the positioning mechanism includes:
the spring mounting groove is arranged on the handle;
a spring installed in the spring installation groove;
the positioning holes are arranged on the shell and are distributed in an arc shape;
the steel balls are arranged in the spring mounting grooves, one side of each steel ball is abutted against the outer end of the spring, and the other side of each steel ball is matched with the corresponding positioning hole;
the shell is provided with a hollow part for the flexible shaft to pass through, the side wall of the hollow part is provided with an installation opening, the fixed bearing seat passes through the installation opening and then is fixed in the hollow part, the operating handle and the movable bearing seat are rotatably installed on the fixed bearing seat through the same central fulcrum screw, the outer side of the hollow part is fixedly provided with a decorative sleeve, the decorative sleeve comprises shielding parts positioned on two sides of the installation opening, and the positioning hole is arranged on one side of the shielding parts facing the operating handle;
the fixed bearing seat comprises a seat body, first bearings are arranged on two sides of the seat body, the seat body is provided with two connecting blocks which extend outwards and are arranged at intervals, and first through holes for the central fulcrum screws to pass through are formed in the connecting blocks; the middle part of the movable bearing seat is provided with a second through hole for the central fulcrum screw to pass through, and the second through hole is positioned between the two connecting blocks; the upper end of the operating handle is provided with an assembly groove, third through holes for the central fulcrum screws to penetrate through are formed in two sides of the assembly groove, two sides of the assembly groove are respectively matched with the outer side wall of the corresponding connecting block, and the decorative sleeve, the operating handle, the movable bearing seat and the fixed bearing seat are connected together through the central fulcrum screws.
2. The flexible shaft locking mechanism of the dredger of claim 1, wherein the locking side wall has an eccentric area, and the eccentric side wall is in contact with the elastic locking piece.
3. The flexible shaft locking mechanism of the dredging machine as claimed in claim 2, wherein the locking end of the elastic locking piece protrudes outwards from one side of the flexible shaft, and the locking side wall has an inner concave part matched with the protruding part of the bent part.
4. The flexible shaft locking mechanism of the dredging machine as claimed in claim 3, wherein the locking end of the elastic locking piece is provided with a bending part bending towards one side of the flexible shaft, and the bending part is provided with an arc-shaped side wall corresponding to the flexible shaft.
5. The flexible shaft locking mechanism of the dredging machine as claimed in claim 2, wherein the side wall of the hollow part is provided with second notches arranged along the circumferential direction, and the second notches are communicated with the corresponding first notches.
6. The flexible shaft locking mechanism of the dredger of claim 1, wherein the flexible shaft locking mechanism further comprises a hollow protecting cover fixed at an end of the hollow portion, and the connecting end of the elastic locking piece is fixed on the protecting cover.
7. The flexible shaft locking mechanism of the dredging machine as claimed in claim 6, wherein the protecting cover has a hollow extension part extending into the hollow part, and the connecting end of the elastic locking piece is inserted into the hollow extension part or fixed on the hollow extension part by a fastener.
8. The flexible shaft locking mechanism of the dredger of claim 6, wherein the hollow part has a limiting step, and the locking ring is located between the limiting step and the protecting cover.
9. A dredging machine, characterized by comprising a flexible shaft locking mechanism, wherein the flexible shaft locking mechanism is the flexible shaft locking mechanism of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107036.3A CN106854890B (en) | 2017-02-27 | 2017-02-27 | Flexible shaft locking mechanism of dredging machine and dredging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107036.3A CN106854890B (en) | 2017-02-27 | 2017-02-27 | Flexible shaft locking mechanism of dredging machine and dredging machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106854890A CN106854890A (en) | 2017-06-16 |
| CN106854890B true CN106854890B (en) | 2022-11-29 |
Family
ID=59125428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710107036.3A Active CN106854890B (en) | 2017-02-27 | 2017-02-27 | Flexible shaft locking mechanism of dredging machine and dredging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106854890B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10519646B2 (en) * | 2017-10-27 | 2019-12-31 | Tti (Macao Commercial Offshore) Limited | Cable feed mechanism for a drain cleaner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2137568Y (en) * | 1992-11-25 | 1993-07-07 | 北京大力机械厂 | Fedding machine for cleaning pipe |
| CN2361954Y (en) * | 1998-04-15 | 2000-02-02 | 于刚 | Domestic hand pipeline dredger |
| CN203337861U (en) * | 2013-01-31 | 2013-12-11 | Ccs技术股份有限公司 | Fiber connector |
| CN204266324U (en) * | 2014-10-28 | 2015-04-15 | 冉赟 | Drain cleaner |
| CN206635887U (en) * | 2017-02-27 | 2017-11-14 | 永康市嘉宏工具制造有限公司 | The flexible axle retaining mechanism and dredging machine of dredging machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7073224B2 (en) * | 2002-06-18 | 2006-07-11 | Masco Corporation | Telescopic polygon radial drive coupling for a drain cleaning machine |
-
2017
- 2017-02-27 CN CN201710107036.3A patent/CN106854890B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2137568Y (en) * | 1992-11-25 | 1993-07-07 | 北京大力机械厂 | Fedding machine for cleaning pipe |
| CN2361954Y (en) * | 1998-04-15 | 2000-02-02 | 于刚 | Domestic hand pipeline dredger |
| CN203337861U (en) * | 2013-01-31 | 2013-12-11 | Ccs技术股份有限公司 | Fiber connector |
| CN204266324U (en) * | 2014-10-28 | 2015-04-15 | 冉赟 | Drain cleaner |
| CN206635887U (en) * | 2017-02-27 | 2017-11-14 | 永康市嘉宏工具制造有限公司 | The flexible axle retaining mechanism and dredging machine of dredging machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106854890A (en) | 2017-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2313638C2 (en) | Connection finger unit for tooth crown connection with holder | |
| JPH0143170B2 (en) | ||
| CN106854890B (en) | Flexible shaft locking mechanism of dredging machine and dredging machine | |
| CN106638837B (en) | Flexible axle telescoping control mechanism and dredging machine of dredging machine | |
| CN104825108A (en) | Mop head | |
| KR200402886Y1 (en) | Drain Pump for Washing Machine | |
| JP6433402B2 (en) | Locking mechanism of tubular body | |
| JP6452200B2 (en) | Locking mechanism of tubular body | |
| US6896481B2 (en) | Deflectable enclosure cover | |
| KR970070688A (en) | Connector for small diameter pipe connection | |
| CN213742735U (en) | Handle | |
| CN209821695U (en) | Telescopic knob structure | |
| CN215687664U (en) | Endoscope handle structure with locking function and endoscope thereof | |
| CN214151534U (en) | Control handle for engineering machinery | |
| CN220927243U (en) | Pulsator stirring device of combined washing machine | |
| RU2382868C1 (en) | Device for removal of jackbit from rod | |
| JP2968775B2 (en) | Rotary fitting | |
| CN217401698U (en) | Sealing device, operation execution mechanism and operation machine | |
| CN219732188U (en) | Dredging machine | |
| CN218009604U (en) | Can dismantle cleaning roller and burnisher | |
| CN209800524U (en) | Bulb subassembly convenient to locking | |
| CN209863712U (en) | Rotary connecting device and dish washing machine | |
| CN221180323U (en) | Cleaning floor brush and cleaning equipment | |
| CN211901363U (en) | Ball cage type synchronous universal coupling | |
| CN211473780U (en) | Guide device and sliding door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230823 Address after: 321403 no.2-1, Xinzhong East Road, Xinbi street, Jinyun County, Lishui City, Zhejiang Province Patentee after: Zhejiang Jiahong Tool Manufacturing Co.,Ltd. Address before: No. 6, 1st Road, Huangtang Industrial Zone, Yongkang City, Jinhua City, Zhejiang Province, 321300 Patentee before: YONGKANG JIAHONG TOOLS MANUFACTURE Co.,Ltd. |
|
| TR01 | Transfer of patent right |