CN111705601B - Anti-falling device for hand-held troweling machine - Google Patents
Anti-falling device for hand-held troweling machine Download PDFInfo
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- CN111705601B CN111705601B CN202010504698.6A CN202010504698A CN111705601B CN 111705601 B CN111705601 B CN 111705601B CN 202010504698 A CN202010504698 A CN 202010504698A CN 111705601 B CN111705601 B CN 111705601B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/42—Machines for imparting a smooth finish to freshly-laid paving courses other than by rolling, tamping or vibrating
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Abstract
The invention provides a hand drop prevention device for a hand-held troweling machine. It has solved the easy problem that takes off the hand and cause operating personnel injured of current hand smoothing machine. The anti-falling device for the hand troweling machine comprises a protective table, wherein the protective table is fixed on the hand troweling machine, a fixed block is fixed above the protective table, a rotating groove is formed in the fixed block, two telescopic mechanisms which rotate relatively are arranged inside the rotating groove, each telescopic mechanism comprises an electric push rod, one end of each electric push rod is rotatably arranged inside the rotating groove, a second snap ring is fixed on the side surface of each electric push rod, a limiting rod is hinged to the other end of each electric push rod, a first snap ring is fixed on the side surface of each limiting rod, a tightening spring is connected between the first snap ring and the second snap ring, and the other end of each limiting rod is rotatably connected with a sliding mechanism; an adjusting and limiting mechanism is arranged above the protective table. The invention can avoid the injury of operators caused by the releasing of hands of the hand troweling machine and reduce the labor intensity of the operators.
Description
Technical Field
The invention belongs to the technical field of machinery, relates to an anti-drop device, and particularly relates to an anti-drop device for a hand troweling machine.
Background
The troweling machine is also called as a smoothing machine, a common troweling machine is a hand-held troweling machine which is widely applied to cement pavement smoothing, and the main structure of the troweling machine is a troweling rotor driven by a gasoline engine, and a troweling knife is arranged on the bottom surface of a cross in the middle of the rotor. The oblique direction of the spatula is consistent with the rotating direction of the rotor, and the gasoline engine drives the triangular belt to rotate the spatula rotor. When the electric trowelling machine is operated, fire is firstly fired, the control handle is held, the two electric trowelling machines are pushed forwards together and move forwards, the two electric trowelling machines are pulled backwards together and move backwards, the average square meter per hour can be 100-300 square meters, and the work efficiency can be improved by more than 30 times compared with manual trowelling.
The handle need tightly be held to current hand trowelling machine when using with the hand, thereby later promotes or stimulates the handle and trowels the road surface, but the staff is when using current trowelling machine, owing to tightly hold the handle for a long time, hand trowelling machine can incessantly vibrate when using simultaneously, so drops from staff's hand easily, leads to the trowelling machine original place rotation to lead to personnel to be injured, also causes the damage to the trowelling machine easily simultaneously.
Through retrieval, for example, chinese patent document discloses a hand drop preventing device for single-disc troweling machine [ application number: CN 201821076362.9; publication No.: CN208380035U ]. Be provided with the telescopic link on the single-disk troweling machine body, the telescopic link includes first linking arm and second linking arm, the open slot has been seted up to the inside of first linking arm, the one end of second linking arm is pegged graft in the open slot, first linking arm and second linking arm pass through locking mechanism locking connection, fixed welding has the dead lever on the other end of second linking arm, the both ends of dead lever all set up threaded hole, the handle has closed soon in the screw hole, the overhead fixed welding of the other end of handle has the link, the link goes up to be equipped with the connection rope, the other end of connecting the rope is overhead to be equipped with the elasticity lantern ring.
This kind of single-disk troweling machine is with anticreep hand device still needs operating personnel to grasp hard to prevent that the troweling machine from taking off the hand, only connects staff and single-disk troweling machine through connecting the rope, if the staff takes off the power, causes the staff injured easily, simultaneously, this kind of single-disk troweling machine still can not reduce staff's intensity of labour, consequently, we propose one kind and prevent that the troweling machine from taking off the hand and causing operating personnel injured and reduce operating personnel intensity of labour's hand troweling machine.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an anti-release device for a hand-held troweling machine, which aims to solve the technical problems that: how to avoid the hand troweling machine to be out of hand to cause the injury of operators and reduce the labor intensity of the operators.
The purpose of the invention can be realized by the following technical scheme:
an anti-drop device for a hand troweling machine comprises a protective table, wherein the protective table is fixed on the hand troweling machine, a fixed block is fixed above the protective table, a rotating groove is formed in the fixed block, two telescopic mechanisms which rotate relatively are arranged inside the rotating groove, each telescopic mechanism comprises an electric push rod, one end of each electric push rod is rotatably arranged inside the rotating groove, a second clamping ring is fixed on the side surface of each electric push rod, a limiting rod is hinged to the other end of each electric push rod, a first clamping ring is fixed on the side surface of each limiting rod, a tightening spring is connected between each first clamping ring and the corresponding second clamping ring, and the other end of each limiting rod is rotatably connected with a sliding mechanism; an adjusting and limiting mechanism is arranged above the protective table.
The working principle of the invention is as follows: fixing two channel steels on the ground, injecting concrete mortar into the channel steels, fixing the device on a hand-held troweling machine through a protective table, starting an adjusting limiting mechanism, releasing the limit of an electric push rod, pulling a limiting rod, installing a sliding mechanism on the channel steels, tightening the electric push rod and the limiting rod through a tightening spring, starting the troweling machine, and troweling a road surface; the electric push rod limits the rotation of the troweling machine body, so that the troweling machine is limited to drive the handle to rotate, a constructor can perform troweling operation only by pushing the troweling machine to move forwards, backwards and leftwards, the impact force caused by the rotation of the troweling machine does not need to be resisted by extra force, the labor intensity of the constructor is reduced, and the damage to the constructor caused by the rotation of the handle due to the release of the troweling machine is avoided.
Adjust stop gear including the installation piece, the installation piece is fixed on the protection platform, the sliding tray has been seted up on the installation piece, the side that the fixed block was kept away from to the installation piece is fixed with the motor, first stopper and second stopper are located the both sides of motor respectively, be fixed with the gear on the output shaft of motor, the top meshing of gear has first rack, the top of first rack slides and leans on the below at first stopper, first rack top is fixed with first extrusion pole, first extrusion pole slides and sets up the inside at the sliding tray, the below meshing of gear has the second rack, the below of second rack slides and leans on the top at the second stopper, the top of second rack is fixed with the second extrusion pole, the second extrusion pole slides and sets up the inside at the sliding tray.
When the electric push rod needs to be limited, the motor drives the gear to rotate through the output shaft, the gear drives the first rack and the second rack to synchronously and reversely move, the first rack and the second rack respectively drive the first extrusion rod and the second extrusion rod to slide, the first extrusion rod and the second extrusion rod extrude the electric push rod, so that the angle of the electric push rod is adjusted, and the first limiting block and the second limiting block can limit the first rack and the second rack; can carry on spacingly to first rack and second rack through first stopper and second stopper, make the troweling machine stop and carry out the troweling in situ to make constructor can take off the hand and have a rest.
The first extrusion rod and the second extrusion rod are both located above the fixed block, the two electric push rods are respectively located on two sides of the fixed block, and the first extrusion rod and the second extrusion rod are respectively abutted against the electric push rods on the two sides.
By adopting the structure, the first extrusion rod and the second extrusion rod are positioned above the fixed block, so that the fixed block can be prevented from interfering the movement of the first extrusion rod and the second extrusion rod.
The sliding mechanism comprises a convex block, a rotating through hole is formed in the convex block, a rotating shaft is arranged in the rotating through hole, the rotating shaft is hinged to the other end of the limiting rod, a first pressing block is fixed below the convex block, a second pressing block is arranged below the first pressing block, the first pressing block and the second pressing block are connected through a screw rod, a first roller is fixed below the first pressing block, and a second roller is fixed above the second pressing block.
When light is required to be smeared, the first pressing block and the second pressing block are connected through a screw, then the first pressing block and the second pressing block are sleeved into the channel steel, the screw is screwed, the first roller and the second roller are tightly attached to the channel steel, and then the screw is locked to finish installation; through first gyro wheel and the cooperation of second gyro wheel, make the smoothing machine can the back-and-forth movement, very big reduction operating personnel intensity of labour.
Compared with the prior art, the anti-release device for the hand-held troweling machine has the following advantages:
1. according to the invention, the rotation of the troweling machine body is limited by the electric push rod, so that constructors do not need to additionally exert force to resist the impact force caused by the rotation of the troweling machine body, the labor intensity of the constructors is reduced, and the constructors are prevented from being injured due to the rotation of the handle caused by the release of the troweling machine.
2. Can carry on spacingly to first rack and second rack through first stopper and second stopper, make the troweling machine stop and carry out the troweling in situ to make constructor can take off the hand rest, very big reduction operating personnel's intensity of labour.
3. The first extrusion rod and the second extrusion rod are positioned above the fixed block, so that the fixed block can be prevented from interfering the movement of the first extrusion rod and the second extrusion rod.
4. Adopt adjustment mechanism and electric putter cooperation, electric putter can prolong, adjusts electric putter's angle through first extrusion pole and second extrusion pole to be fit for various road widths, improved the universality.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the working state of the present invention.
Fig. 3 is a schematic perspective view of the telescopic mechanism of the present invention.
Fig. 4 is a schematic perspective view of the stop lever of the present invention.
Fig. 5 is a schematic perspective view of an adjustment limiting mechanism according to the present invention.
Fig. 6 is a schematic perspective view of the sliding mechanism of the present invention.
Fig. 7 is a side view schematically showing the slide mechanism of the present invention.
Fig. 8 is a schematic perspective view of the electric putter of the present invention.
In the figure, 1, a protection platform; 2. a fixed block; 3. a telescoping mechanism; 301. an electric push rod; 302. a second snap ring; 303. a limiting rod; 304. a first snap ring; 305. tightening the spring; 4. adjusting a limiting mechanism; 401. mounting blocks; 402. a sliding groove; 403. a second rack; 404. a gear; 405. a motor; 406. a first stopper; 407. a first rack; 408. a first extrusion stem; 409. a second limiting block; 410. a second extrusion stem; 5. a sliding mechanism; 501. a bump; 502. rotating the through hole; 503. a second roller; 504. a second pressing block; 505. a first pressing block; 506. a first roller.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1-8, the embodiment provides a hand drop prevention device for a handheld troweling machine, which includes a protection table 1, the protection table 1 is fixed on the handheld troweling machine, a protection table 2 is fixed above the protection table 1, a rotation groove is formed on the protection table 2, two relatively rotating telescopic mechanisms 3 are arranged inside the rotation groove, each telescopic mechanism 3 includes an electric push rod 301, one end of the electric push rod 301 is rotatably arranged inside the rotation groove, a second snap ring 302 is fixed on a side surface of the electric push rod 301, the other end of the electric push rod 301 is hinged to a limit rod 303, a first snap ring 304 is fixed on a side surface of the limit rod 303, a tightening spring 305 is connected between the first snap ring 304 and the second snap ring 302, and a sliding mechanism 5 is rotatably connected to the other end of the limit rod 303; an adjusting and limiting mechanism 4 is arranged above the protective table 1; fixing two channel steels on the ground, injecting concrete mortar into the channel steels, fixing the device on a hand-held troweling machine through a protective table 1, driving a gear 405 to rotate by a motor 405 through an output shaft, driving a first rack 407 and a second rack 403 to synchronously and reversely move by the gear 405, driving a first extrusion rod 408 and a second extrusion rod 410 to respectively slide by the first rack 407 and the second rack 403, releasing the limit on an electric push rod 301, pulling a limit rod 303, connecting a first pressing block 505 and a second pressing block 504 by using a screw rod, sleeving the first pressing block 505 and the second pressing block 504 into the channel steels, screwing the screw rod, tightly attaching the first roller 506 and the second roller to the channel steels, locking the screw rod, tightening a tightening spring 305 to tighten the electric push rod 301 and the limit rod 303, starting the troweling machine, and troweling the road surface 503;
when a constructor needs to have a rest, the motor 405 is started, the motor 405 drives the gear 405 to rotate through the output shaft, the gear 405 drives the first rack 407 and the second rack 403 to synchronously and reversely move, the first rack 407 and the second rack 403 respectively drive the first extrusion rod 408 and the second extrusion rod 410 to slide, the first extrusion rod 408 and the second extrusion rod 410 extrude the electric push rod 301 to adjust the angle of the electric push rod 301, the first limiting block 406 and the second limiting block 409 can limit the first rack 407 and the second rack 403, and the troweling machine performs troweling in situ; electric putter 301 has restricted the troweling machine and has driven the handle rotation, makes constructor only need promote the troweling machine and remove about and to carry out the troweling, does not need additionally to exert oneself to resist the rotatory impact force that leads to of troweling machine fuselage, has reduced constructor's intensity of labour, has also avoided the troweling machine to take off the hand and leads to the handle rotation, leads to the fact the injury to constructor.
The adjusting and limiting mechanism 4 comprises an installation block 401, the installation block 401 is fixed on the protection platform 1, a sliding groove 402 is arranged on the installation block 401, a motor 405 is fixed on the side surface of the installation block 401 far away from the protection platform 2, the first limiting block 406 and the second limiting block 409 are respectively located on two sides of the motor 405, a gear 405 is fixed on an output shaft of the motor 405, a first rack 407 is meshed above the gear 405, the upper side of the first rack 407 is in sliding abutting contact with the lower side of the first limiting block 406, a first extrusion rod 408 is fixed above the first rack 407, the first extrusion rod 408 is in sliding arrangement inside the sliding groove 402, a second rack 403 is meshed below the gear 405, the lower side of the second rack 403 is in sliding abutting contact with the upper side of the second limiting block 409, a second extrusion rod 410 is fixed above the second rack 403, and the second extrusion rod 410 is in sliding arrangement inside the sliding groove 402.
When the electric push rod 301 needs to be limited, the motor 405 drives the gear 405 to rotate through the output shaft, the gear 405 drives the first rack 407 and the second rack 403 to synchronously and reversely move, the first rack 407 and the second rack 403 respectively drive the first extrusion rod 408 and the second extrusion rod 410 to slide, the first extrusion rod 408 and the second extrusion rod 410 extrude the electric push rod 301, so that the angle of the electric push rod 301 is adjusted, and the first limiting block 406 and the second limiting block 409 can limit the first rack 407 and the second rack 403; the first rack 407 and the second rack 403 can be limited by the first limiting block 406 and the second limiting block 409, so that the troweling machine can stay in place for troweling, and a constructor can take off his hands for rest.
The first extrusion rod 408 and the second extrusion rod 410 are both located above the protection platform 2, the two electric push rods 301 are respectively located at two sides of the protection platform 2, and the first extrusion rod 408 and the second extrusion rod 410 are respectively abutted against the electric push rods 301 at the two sides.
With the above structure, the first pressing rod 408 and the second pressing rod 410 are located above the protection table 2, so that the protection table 2 can avoid interference of the first pressing rod 408 and the second pressing rod 410 in movement.
The sliding mechanism 5 comprises a convex block 501, a rotating through hole 502 is formed in the convex block 501, a rotating shaft is rotatably arranged in the rotating through hole 502 and is hinged to the other end of the limiting rod 303, a first pressing block 505 is fixed below the convex block 501, a second pressing block 504 is arranged below the first pressing block 505, the first pressing block 505 and the second pressing block 504 are connected through a screw rod, a first roller 506 is fixed below the first pressing block 505, and a second roller 503 is fixed above the second pressing block 504.
When light is required to be wiped, the first pressing block 505 and the second pressing block 504 are connected through a screw, then the first pressing block 505 and the second pressing block 504 are sleeved into the channel steel, the screw is screwed, the first roller 506 and the second roller 503 are tightly attached to the channel steel, then the screw is locked, and the installation is completed; through the cooperation of first gyro wheel 506 and second gyro wheel 503, make the smoothing machine can the back-and-forth movement, very big reduction operating personnel intensity of labour.
The working principle of the invention is as follows:
fixing two channel steels on the ground, injecting concrete mortar into the channel steels, fixing the device on a hand-held troweling machine through a protective table 1, driving a gear 405 to rotate through an output shaft by a motor 405, driving a first rack 407 and a second rack 403 to synchronously and reversely move by the gear 405, driving a first extrusion rod 408 and a second extrusion rod 410 to respectively slide by the first rack 407 and the second rack 403, releasing the limit on an electric push rod 301, pulling a limit rod 303, connecting a first pressing block 505 and a second pressing block 504 by using a screw rod, then sleeving the first pressing block 505 and the second pressing block 504 into the channel steels, screwing the screw rod, tightly attaching the first roller 506 and the second roller to the channel steels, locking the screw rod 503, tightening a tightening spring 305 to tighten the electric push rod 301 and the limit rod 303, starting the troweling machine to trowel the road surface, and simultaneously limiting the troweling machine from driving a handle to rotate by the troweling machine 301, the troweling machine can be trowelled only by pushing the troweling machine to move left and right, and the impact force caused by the rotation of the troweling machine does not need to be resisted by extra force, so that the labor intensity of constructors is reduced, and the damage to the constructors caused by the rotation of a handle due to the release of the troweling machine is avoided;
when the electric push rod 301 needs to be limited, the motor 405 drives the gear 405 to rotate through the output shaft, the gear 405 drives the first rack 407 and the second rack 403 to do synchronous reverse motion, the first rack 407 and the second rack 403 respectively drive the first extrusion rod 408 and the second extrusion rod 410 to slide, the first extrusion rod 408 and the second extrusion rod 410 extrude the electric push rod 301, so that the angle of the electric push rod 301 is adjusted, and the first limiting block 406 and the second limiting block 409 can limit the first rack 407 and the second rack 403.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (1)
1. The anti-falling device for the hand troweling machine comprises a protective table and is characterized in that the protective table is fixed on the hand troweling machine, a fixed block is fixed above the protective table, a rotating groove is formed in the fixed block, two telescopic mechanisms rotating relatively are arranged inside the rotating groove, each telescopic mechanism comprises an electric push rod, one end of each electric push rod is rotatably arranged inside the rotating groove, a second clamping ring is fixed on the side surface of each electric push rod, a limiting rod is hinged to the other end of each electric push rod, a first clamping ring is fixed on the side surface of each limiting rod, a tightening spring is connected between each first clamping ring and the corresponding second clamping ring, and the other end of each limiting rod is rotatably connected with a sliding mechanism; an adjusting and limiting mechanism is arranged above the protective table;
fixing the two channel steels on the ground, and installing a sliding mechanism on the channel steels;
the sliding mechanism comprises a convex block, a rotating through hole is formed in the convex block, a rotating shaft is rotatably arranged inside the rotating through hole, the rotating shaft is hinged with the other end of the limiting rod, a first pressing block is fixed below the convex block, a second pressing block is arranged below the first pressing block, the first pressing block and the second pressing block are connected through a screw rod, a first roller is fixed below the first pressing block, and a second roller is fixed above the second pressing block;
the adjusting and limiting mechanism comprises an installation block, the installation block is fixed on the protective table, a sliding groove is formed in the installation block, a motor, a first limiting block and a second limiting block are fixed on the side face, far away from the fixed block, of the installation block, the first limiting block and the second limiting block are respectively located on two sides of the motor, a gear is fixed on an output shaft of the motor, a first rack is meshed above the gear, the upper portion of the first rack is slidably abutted to the lower portion of the first limiting block, a first extrusion rod is fixed above the first rack and is slidably arranged in the sliding groove, a second rack is meshed below the gear, the lower portion of the second rack is slidably abutted to the upper portion of the second limiting block, a second extrusion rod is fixed above the second rack and is slidably arranged in the sliding groove;
the first extrusion rod and the second extrusion rod are both located above the fixed block, the two electric push rods are respectively located on two sides of the fixed block, and the first extrusion rod and the second extrusion rod are respectively abutted against the electric push rods on the two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010504698.6A CN111705601B (en) | 2020-06-05 | 2020-06-05 | Anti-falling device for hand-held troweling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010504698.6A CN111705601B (en) | 2020-06-05 | 2020-06-05 | Anti-falling device for hand-held troweling machine |
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| Publication Number | Publication Date |
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| CN111705601A CN111705601A (en) | 2020-09-25 |
| CN111705601B true CN111705601B (en) | 2022-02-01 |
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| CN202010504698.6A Active CN111705601B (en) | 2020-06-05 | 2020-06-05 | Anti-falling device for hand-held troweling machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113463473B (en) * | 2021-07-15 | 2022-10-28 | 中国建筑第二工程局有限公司 | High security smoothing machine is used in town road construction |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH585833A5 (en) * | 1975-06-13 | 1977-03-15 | Duerst Felix | |
| ATE434096T1 (en) * | 2002-12-31 | 2009-07-15 | Multiquip Inc | MECHANICAL TILT CONTROL OF THE WING BLADES OF A CONCRETE PROCESSING MACHINE |
| US7108451B2 (en) * | 2004-05-17 | 2006-09-19 | Ewer Charles J | Rotating concrete finishing trowel |
| CN206625112U (en) * | 2017-04-11 | 2017-11-10 | 嘉兴市汇丰园林绿化工程有限公司 | A kind of trowelling machine |
| CN107288014A (en) * | 2017-07-14 | 2017-10-24 | 芜湖德丰汽车零部件有限公司 | A kind of trowelling machine |
| CN208380035U (en) * | 2018-07-09 | 2019-01-15 | 江西博泓新材料科技有限公司 | A kind of single-deck finisher anticreep arm device |
| CN208857645U (en) * | 2018-08-07 | 2019-05-14 | 中建津泓（天津）建设发展有限公司 | A kind of stable hand-held finisher |
| CN109778642A (en) * | 2019-02-28 | 2019-05-21 | 湖北华赢路桥工程有限公司 | A kind of rail mounted road and bridge engineering construction floating device |
| CN110670454A (en) * | 2019-09-29 | 2020-01-10 | 南宁学院 | Anti-out-of-control hand-held ground smoothing machine |
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