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CN-121976648-A - Quick blade angle adjusting mechanism of trowelling machine

CN121976648ACN 121976648 ACN121976648 ACN 121976648ACN-121976648-A

Abstract

The invention relates to the technical field of trowels, in particular to a quick blade angle adjusting mechanism of a trowels, which comprises a handle pipe main body, a handle frame rotatably arranged at one end of the handle pipe main body through a rotating shaft, an arc-shaped groove, a movable rod, tooth grooves, a vertical groove, a grab handle, a positioning pin and a positioning pin, wherein the arc-shaped groove is formed in the handle pipe main body, the two ends of the movable rod are fixedly connected with the handle frame, the middle of the movable rod slides relative to the arc-shaped groove, the tooth grooves are formed in one side of the handle pipe main body in an annular array manner, the vertical groove is formed in one side of the top of the handle frame, one end of the grab handle is slidably connected with the vertical groove, the other end of the positioning pin slides up and down relative to the handle frame, and one end of the positioning pin is movably clamped with the tooth grooves, and the other end of the positioning pin is fixedly connected with the grab handle. According to the blade angle adjusting mechanism provided by the invention, through the cooperative cooperation of the rotating ring, the positioning rod, the rotating plate and the sliding block, the rotation swing of the handle frame is accurately converted into the linear displacement of the sliding block, so that the rotation angle of the handle frame and the moving distance of the sliding block form a linear correspondence, and the visualization and the quantization feedback of the blade adjusting angle are realized.

Inventors

  • WU YUNZHOU
  • HUANG RUI

Assignees

  • 上海捷舟工程机械有限公司

Dates

Publication Date
20260505
Application Date
20260403

Claims (12)

  1. 1. The utility model provides a quick blade angle adjustment mechanism of trowelling machine, includes handle pipe main part and rotates through the axis of rotation and install handle frame of handle pipe main part one end, its characterized in that still includes: an arc-shaped groove which is arranged on the handle tube main body; the two ends of the movable rod are fixedly connected with the handle frame, and the middle part of the movable rod slides relative to the arc-shaped groove; the tooth grooves are formed in one side of the handle tube main body in an annular array manner, and a plurality of tooth grooves are formed in number; A vertical groove arranged on one side of the top of the handle frame; one end of the grab handle is in sliding connection with the vertical groove, and the other end of the grab handle slides up and down relative to the handle frame; one end of the locating pin is movably clamped with the tooth slot, and the other end of the locating pin is fixedly connected with the grab handle; one end of the reset spring is fixedly connected with the positioning pin, and the other end of the reset spring is fixedly connected with the handle frame; The conversion assembly is arranged on one side of the rotating shaft, converts the rotating angle of the handle frame into linear travel, and completes accurate quantization feedback of the blade adjusting angle.
  2. 2. The quick blade angle adjusting mechanism of a trowelling machine according to claim 1, wherein the conversion assembly comprises a rotating ring, the rotating ring is fixedly sleeved outside the rotating shaft, a positioning rod is fixedly arranged on one side of the rotating ring, a rotating plate is movably sleeved outside the positioning rod, a positioning frame is fixedly arranged on one side of the handle tube body, a sliding groove is formed in the positioning frame, a sliding block is arranged in the sliding groove in a sliding manner, and one end of the rotating plate, which is far away from the positioning rod, is movably connected with the sliding block.
  3. 3. The quick blade angle adjustment mechanism of claim 2, wherein a plurality of notches are formed in the positioning frame in a transverse linear array, a rotating rod is rotatably mounted in the notches, a label is fixedly sleeved on the outer side of the rotating rod, and the label and the notches are rotatably arranged.
  4. 4. A quick blade angle adjustment mechanism for a troweling machine according to claim 3, wherein the rotating rod is fixedly connected with a supporting rod on one side of the sign, and the supporting rod is movably abutted with one side of the sliding block.
  5. 5. The quick blade angle adjustment mechanism of claim 4, wherein the end of the abutting rod away from the sign is fixedly provided with a torsion spring, and the other end of the torsion spring is fixedly connected with the inner wall of one side of the notch.
  6. 6. A quick blade angle adjustment mechanism for a troweling machine according to claim 3, wherein the sign is hollow, and a plurality of bells are movably arranged in the sign, and a plurality of bells collide with each other.
  7. 7. The quick blade angle adjusting mechanism of claim 4, wherein the positioning frame is provided with a transverse slot on one side of the slot, the rotating rod is fixedly provided with a transverse rod on one side of the transverse slot, the transverse rod movably penetrates through the inner wall of the slot, and the tail end of the transverse rod is rotatably connected with the inner wall of one side of the transverse slot.
  8. 8. The quick blade angle adjusting mechanism of a trowelling machine according to claim 7, wherein a circular ring is fixedly sleeved on the outer side of one end of the cross rod, an inserting rod is movably and elastically connected to the outer side of the circular ring, a fixing ring is fixedly arranged on the inner wall of one side of the notch, the rotating rod movably penetrates through the fixing ring, a jack is formed in the end, close to the circular ring, of the fixing ring, and the inserting rod is movably clamped with the jack.
  9. 9. The quick blade angle adjusting mechanism of a trowelling machine according to claim 8, wherein a push rod is movably arranged in the jack, one end of the push rod movably penetrates through the inner wall of one side of the jack, the other end of the push rod is movably abutted to the inserting rod, and the push rod is fixedly connected with the inner wall of the jack through a positioning spring.
  10. 10. The quick blade angle adjustment mechanism of claim 9, wherein a push plate is movably disposed in the transverse groove, and the push plate is movably abutted against one end of the ejector rod away from the circular ring.
  11. 11. The quick blade angle adjusting mechanism of a trowelling machine according to claim 10, wherein a screw rod is movably arranged on one side of the push plate in a penetrating manner, a moving rod is fixedly arranged at two ends of the screw rod, and one end of the moving rod, which is far away from the push plate, is in sliding connection with the sliding groove.
  12. 12. The quick blade angle adjusting mechanism of a trowelling machine according to claim 11, wherein a notch is formed in one end of the sliding block, which is close to the push plate, the push plate is slidably arranged with the notch, a gear is fixedly arranged on the outer side of one end of the screw rod, a rack is fixedly arranged on the inner wall of the notch, and the rack is meshed with the gear for transmission.

Description

Quick blade angle adjusting mechanism of trowelling machine Technical Field The invention relates to the technical field of trowelling machines, in particular to a quick blade angle adjusting mechanism of a trowelling machine. Background The trowelling machine is core equipment for ground slurry lifting, leveling, rough trowelling and finish polishing and collecting in concrete construction, and the adjusting precision and the operation convenience of the blade angle of the trowelling machine directly determine the forming quality, the construction efficiency and the labor intensity of operators of a concrete terrace. At present, the blade angle adjusting mechanism of most trowelling machines on the market still adopts a traditional pure handle rotation adjusting mode, and the adjusting mode has a simple structure and lower manufacturing cost, and is applied to a certain degree in early simple construction scenes, but along with continuous improvement of construction precision and efficiency requirements of industrial terraces, large municipal engineering and the like, the inherent defects and disadvantages of the blade angle adjusting mechanism are increasingly prominent, and the modern construction requirements are difficult to meet. Traditional trowelling machine blade angle adjustment mode relies on the operating personnel to manually pull adjustment handle at the core, and rotation swing through the handle drives the blade to overturn around the pivot, and then realizes the adjustment of blade angle. The mode is not provided with any angle quantification and visual feedback structure, the judgment of the actual adjustment angle of the blade is completely dependent on naked eye observation and construction experience of operators, and certain defects and disadvantages exist, such as that the operators can only observe the relative position of the blade and the ground through naked eyes due to lack of angle quantification feedback, or judge whether the blade angle meets the preset working condition requirements of slurry lifting, rough wiping, fine polishing and the like by virtue of experience accumulated in long-term construction, and the accurate calibration of the blade angle cannot be realized. The experience level and the observation angle of different operators are different, even if the same operator is in different construction periods, the judgment of the angle is also likely to deviate, so that the inclination angles of blades in the same terrace area are inconsistent, further construction defects such as ground corrugation, scale patterns, height differences and the like are generated, the flatness, compactness and attractiveness of the terrace are affected, and the post-rework cost is increased. Disclosure of Invention Accordingly, it is desirable to provide a quick blade angle adjustment mechanism for a trowelling machine that is convenient for an operator to confirm whether the blade is in place. The invention provides a quick blade angle adjusting mechanism of a trowelling machine, which comprises a handle pipe main body, a handle frame rotatably arranged at one end of the handle pipe main body through a rotating shaft, and further comprises: an arc-shaped groove which is arranged on the handle tube main body; the two ends of the movable rod are fixedly connected with the handle frame, and the middle part of the movable rod slides relative to the arc-shaped groove; the tooth grooves are formed in one side of the handle tube main body in an annular array manner, and a plurality of tooth grooves are formed in number; A vertical groove arranged on one side of the top of the handle frame; one end of the grab handle is in sliding connection with the vertical groove, and the other end of the grab handle slides up and down relative to the handle frame; one end of the locating pin is movably clamped with the tooth slot, and the other end of the locating pin is fixedly connected with the grab handle; one end of the reset spring is fixedly connected with the positioning pin, and the other end of the reset spring is fixedly connected with the handle frame; The conversion assembly is arranged on one side of the rotating shaft, converts the rotating angle of the handle frame into linear travel, and completes accurate quantization feedback of the blade adjusting angle. In one embodiment, the conversion assembly comprises a rotating ring, the rotating ring is fixedly sleeved on the outer side of the rotating shaft, a positioning rod is fixedly arranged on one side of the rotating ring, a rotating plate is movably sleeved on the outer side of the positioning rod, a positioning frame is fixedly arranged on one side of the rotating rod, a sliding groove is formed in the positioning frame, a sliding block is arranged in the sliding groove in a sliding mode, and one end of the rotating plate, which is far away from the positioning rod, is movably connected with the sliding block. In one embodiment, the posit