CN110670453B - Anti-runaway protection device of hand-held ground trowelling machine - Google Patents
Anti-runaway protection device of hand-held ground trowelling machine Download PDFInfo
- Publication number
- CN110670453B CN110670453B CN201910935936.6A CN201910935936A CN110670453B CN 110670453 B CN110670453 B CN 110670453B CN 201910935936 A CN201910935936 A CN 201910935936A CN 110670453 B CN110670453 B CN 110670453B
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- CN
- China
- Prior art keywords
- switch
- pull wire
- magnet
- trowelling
- accelerator
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000003502 gasoline Substances 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
- E04F21/245—Rotary power trowels, i.e. helicopter trowels
- E04F21/248—Rotary power trowels, i.e. helicopter trowels used by an operator walking behind the trowel, i.e. walk-behind power trowels
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Soil Working Implements (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses a hand-held ground trowelling machine runaway prevention protection device, which belongs to the technical field of constructional engineering equipment and comprises a trowelling main body, wherein an accelerator pull wire is divided into a long-section pull wire and a short-section pull wire, one end of the long-section pull wire is connected with an accelerator of a gasoline engine, the other end of the long-section pull wire is connected with an iron block, one end of the short-section pull wire is connected with an accelerator switch, the other end of the short-section pull wire is connected with a switch type magnet for controlling the iron block, a magnet switch is arranged on the switch type magnet, the iron block and the switch type magnet are arranged in a box, a magnet sliding rail is arranged in the box, the switch type magnet is sleeved on the magnet sliding rail, a pull wire fixing support is connected with the magnet switch, a switch reset spring is arranged between the switch reset spring support and the magnet switch, and the switch pull wire is connected with a handle. According to the invention, when the hands of an operator are completely separated from the armrests, the gasoline engine enters an idle state, and the driving of the spatula is stopped to rotate, so that the effect of preventing runaway is achieved.
Description
Technical Field
The invention belongs to the technical field of constructional engineering equipment, and particularly relates to a runaway prevention protection device of a hand-held ground trowelling machine.
Background
The surface troweling machine is also called a cement polishing machine, is a concrete surface coarse and fine troweling machine, has smoother and flatter surface after machine construction than the surface of manual construction, can greatly improve the compactness and wear resistance of the concrete surface, and can be widely used for lifting slurry, troweling and troweling the concrete surface of pavements, high-standard factory buildings, warehouses, parking lots, squares, airports and frame-type buildings; the plastering machine is a first-choice machine tool in concrete construction, the plastering machine can plaster 100-30 m < 2 > per hour, and the efficiency is improved by more than 10 times compared with manual operation.
The ground trowel is generally divided into a hand-held trowel rotor and a driving type, wherein the main structure of the hand-held trowel rotor is a gasoline engine driven trowel rotor, and 2-4 trowels are arranged on the bottom surface of a cross in the middle of the rotor. The tilt direction of the spatula is consistent with the rotation direction of the rotor, and the gasoline engine drives the triangular belt to enable the spatula rotor to rotate. When the cement floor trowelling machine is operated, the control handle is held firstly, the gasoline engine is started, then the accelerator is added, the running speed of the gasoline engine is increased, the clutch is automatically engaged, namely, the trowel is driven to rotate to trowelle the cement floor; under the idling state of the fuel engine, namely under the condition of not adding a fuel valve, the clutch is automatically separated, and the driving of the spatula to rotate is stopped.
Although the hand troweling machine can greatly improve the construction efficiency, the polishing machine commonly used in the market generally has the following defects:
When the hand-off is out of control caused by improper operation in the use process, namely, if an operator carelessly leaves the handle of the hand rest in the working process of the equipment, the hand rest rotates around the disc at a high speed, and the operator cannot close the equipment to close the hand rest under the condition of high-speed rotation of the hand rest, so that the out-of-control phenomenon occurs; the device must wait until the fuel in the fuel tank of the fuel engine is exhausted to stop naturally once it is out of control. The out-of-control trowelling machine not only seriously affects the construction progress, but also seriously damages the construction ground; and also causes serious threat to the life safety of surrounding personnel. The main reason that the hand trowelling machine is easy to run away is that the throttle switch of the gasoline engine is a fixed switch, and the gasoline engine runs at a certain rotation speed after the throttle is adjusted, so that an operator does not need to adjust the throttle in the using process, but the running away phenomenon occurs once the trowelling machine is carelessly taken off.
Disclosure of Invention
The invention aims at: aiming at the problems, the invention provides the anti-runaway hand-held ground trowelling machine which stops driving the trowelling knife to rotate when the hands of an operator are completely separated from the armrests and achieves the anti-runaway effect.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a hand-held ground trowelling machine protection device that prevents out of control, including trowelling main part, trowelling main part includes the trowelling dish and sets up the petrol engine on the trowelling dish, still be connected with the control pole on the trowelling dish, the end of control pole is provided with the handrail, be provided with throttle switch and handle on the handrail, the throttle switch is connected with the throttle of petrol engine, the throttle is acted as go-between and is divided into long section and is acted as go-between and short section act as go-between, the throttle of petrol engine is connected to one end of long section act as go-between, the other end is connected with an iron plate, the throttle switch is connected to short section act as go-between one end, the other end is connected with the switch formula magnet that is used for controlling the iron plate, be provided with magnet switch on the switch formula magnet, iron plate and switch formula magnet are installed in a box, be provided with magnet slide rail in the box, switch formula magnet cover is on magnet, switch formula magnet is installed the upper and lower both sides are provided with acting as go-between fixed bolster and switch reset spring support respectively, the stay-switch fixed bolster is connected with magnet switch, switch reset spring support is connected with switch reset.
Further, the trowel further comprises a trowel arranged at the bottom of the trowel.
Further, a gap for pulling the switch pull wire to the inner side of the handle by the handle is arranged between the handrail and the handle. When the staff holds the handle, can pulling the switch stay, the switch stay can drive the magnetic force switch to upwards move, and the switch magnet can produce magnetic force to attract the iron block, and is connected with the throttle stay, and the trowelling machine normally starts work.
Further, the handrail is trapezoidal. The ladder-shaped handrail is convenient for installing the handle and the switch type magnet.
Further, the handles are respectively arranged at two sides of the interior of the handrail.
Further, the handles on the two sides are respectively connected with the stay wire fixing support through stay wires to independently control the magnet switch. Two handles are arranged on two sides of the inside of the handrail, two hands of corresponding staff can independently control the trowelling machine, and the trowelling machine can be customized to work only under the condition that two hands are separated.
Further, the case is made of a non-magnetic material.
Further, the box is made of plastic.
Further, the handle is made of elastic materials.
The invention has the beneficial effects that:
According to the invention, the switch of the switch type magnet is controlled through the handle arranged on the armrest, so that the magnet switch is turned off when the hands of an operator leave the armrest, the accelerator pull wire is disconnected after the magnetic force of the magnet disappears, the gasoline engine enters an idling state to stop driving the spatula to rotate, and the phenomenon of runaway is prevented; a gap is arranged between the armrest and the handle, so that the switch is closed only by holding the armrest normally, and fatigue is not increased; the innovative control method can prevent the trowelling machine from being out of control without forcibly extinguishing the gasoline engine, and greatly improves the service performance and the safety performance of the equipment.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the connection structure of the switch-type magnet and other components in the invention.
In the figure: the novel electric power steering device comprises a 1-wiping disc, a 2-gasoline engine, a 3-control rod, a 4-handrail, a 5-handle, a 6-throttle switch, a 7-box, an 8-opening Guan Laxian, a 9-stay wire fixing support, a 10-iron block, an 11-long-section stay wire, a 12-magnet sliding rail, a 13-switch magnet, a 14-magnet switch, a 15-switch return spring support, a 16-switch return spring and a 17-short-section stay wire.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
Examples
As shown in fig. 1 and 2, the anti-runaway protection device of the hand-held ground trowelling machine comprises a trowelling main body, wherein the trowelling main body comprises a trowelling disc 1 and a gasoline engine 2 arranged on the trowelling disc 1, a control rod 3 is further connected to the trowelling disc 1, a handrail 4 is arranged at the end of the control rod 3, an accelerator switch 6 and a handle 5 are arranged on the handrail 4, the accelerator switch 6 and the gasoline engine 2 are connected with an accelerator pull wire, the accelerator pull wire is divided into a long-section pull wire 11 and a short-section pull wire 17, one end of the long-section pull wire 11 is connected with the accelerator of the gasoline engine 2, the other end of the long-section pull wire 11 is connected with an iron block 10, one end of the short-section pull wire 17 is connected with the accelerator switch 6, the other end of the short-section pull wire is connected with a switch magnet 13 for controlling the iron block 10, a magnet switch 14 is arranged on the switch magnet 13, the iron block 10 and the switch magnet 13 are arranged in a box 7, a magnet slide rail 12 is arranged in the box 7, the switch magnet 13 is sleeved on the magnet slide rail, the upper side and the lower side of the switch magnet 13 is respectively provided with a pull wire fixing support 9 and a switch reset spring support 15, the fixed support 9 and the pull wire reset spring 15 are connected with the pull wire 5, and the reset spring 15 is connected with the pull wire 8, and the pull wire reset spring 8 is connected with the switch 8.
The trowel 1 further comprises a trowel arranged at the bottom of the trowel 1.
A gap for pulling the switch pull wire 8 by the handle 5 towards the inner side of the handle 5 is arranged between the handrail 4 and the handle 5. When the staff holds the handle 5, the switch pull wire 8 can be pulled, the switch pull wire 8 can drive the magnetic switch to move upwards, the switch magnet 13 can generate magnetic force to attract the iron block 10, the accelerator pull wire is connected, and the trowelling machine starts working normally.
The handrail 4 is trapezoidal. The ladder-shaped handrail 4 facilitates the installation of the handle 5 and the switch magnet 13.
The handles 5 are respectively arranged at two sides of the interior of the handrail 4.
The handles 5 on the two sides are respectively connected with the stay wire fixing bracket 9 through stay wires to independently control the magnet switch 14. Two handles 5 are arranged on two sides of the inside of the handrail 4, two hands of corresponding staff can independently control the trowelling machine, and the trowelling machine can be customized to work only under the condition that two hands are separated.
The box 7 is made of a non-magnetic material.
The box 7 is made of plastic.
The handle 5 is made of a material with elastic force.
In the above scheme, the structure and principle of the inside of the switch magnet are mainly similar to the structure of the magnetic meter base, when the magnet switch 14 on the switch magnet 13 is in the horizontal position, that is, when the magnet switch 14 is not pulled by the switch pull wire 8, the magnet inside the switch magnet 13 rotates to the middle position, and magnetic force lines do not generate magnetic force outwards when closed circuits are formed in the two magnetizers respectively; when the magnet switch 14 rotates by 90 degrees under the action of the switch pull rope 8, the NS pole faces the two magnetizers respectively, at the moment, the N pole is closed to the magnetizer from the guide rail to the other magnetizer to the S pole, a stronger magnetic force is generated, the magnet moves along the fixed nonmagnetic slide rail and is arranged in a shell made of nonmagnetic materials, one end of the magnet is connected with the accelerator switch 6 through the accelerator pull rope, the magnet is pulled to move when the accelerator switch 6 regulates the accelerator, if one hand of an operator grabs the handle 5 on the armrest 4, a gap is arranged between the handle 5 and the armrest 4, the handle 5 is controlled by the pull rope to open by the magnet switch 14 to generate magnetic force, the iron block 10 on the accelerator pull rope is attracted by the magnetic force to switch on the accelerator pull rope to play a role of regulating the accelerator, once the two hands of the operator leave the armrest 4, the magnet switch 14 is automatically closed under the action of the reset spring, the magnetic force disappears, the accelerator switch 6 of the accelerator pull rope cannot play the role of regulating the accelerator, the gasoline engine 2 enters an idle state, the driving of the trowel is stopped, and the phenomenon of losing control is prevented.
Claims (6)
1. A hand-held ground trowelling machine prevents protection device that out of control which characterized in that: the multifunctional trowelling machine comprises a trowelling main body, wherein the trowelling main body comprises a trowelling disc (1) and a gasoline engine (2) arranged on the trowelling disc (1), a control rod (3) is further connected to the trowelling disc (1), an armrest (4) is arranged at the end of the control rod (3), an accelerator switch (6) and a handle (5) are arranged on the armrest (4), the accelerator switch (6) and the gasoline engine (2) are connected with an accelerator pull wire, the accelerator pull wire is divided into a long-section pull wire (11) and a short-section pull wire (17), one end of the long-section pull wire Duan Laxian (11) is connected with the accelerator of the gasoline engine (2), the other end of the long-section pull wire is connected with an iron block (10), one end of the short-section pull wire (17) is connected with the accelerator switch (6), the other end of the short-section pull wire is connected with a switch magnet (13) for controlling the iron block (10), a magnet switch (14) is arranged on the switch magnet (13), the iron block (10) and the switch magnet (13) is arranged in a box (7), a magnet slide rail (12) is arranged in the box (7), the switch magnet (13) is sleeved on the magnet guide rail, the two sides of the switch magnet (13) and the upper support and the switch (13) and the switch support (9) are respectively provided with a reset support (9), a switch reset spring (16) is arranged between the switch reset spring (16) bracket (15) and the magnet switch (14), the pull wire fixing bracket (9) is connected with a switch pull wire (8), and the switch pull wire (8) is connected with the handle (5);
A gap for pulling the switch pull wire (8) by the handle (5) towards the inner side of the handle (5) is arranged between the handrail (4) and the handle (5);
the handles (5) are respectively arranged at two sides of the interior of the handrail (4);
The handles (5) at the two sides are respectively connected with the stay wire fixing bracket (9) through stay wires to independently control the magnet switch (14).
2. The device for preventing runaway of a hand-held floor trowelling machine of claim 1, wherein: the trowel disc (1) further comprises a trowel arranged at the bottom of the trowel disc (1).
3. The device for preventing runaway of a hand-held floor trowelling machine of claim 1, wherein: the handrail (4) is trapezoidal.
4. The device for preventing runaway of a hand-held floor trowelling machine of claim 1, wherein: the box (7) is made of a non-magnetic material.
5. The device of claim 4, wherein the anti-runaway protection device comprises: the box (7) is made of plastic.
6. The device for preventing runaway of a hand-held floor trowelling machine of claim 1, wherein: the handle (5) is made of elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910935936.6A CN110670453B (en) | 2019-09-29 | 2019-09-29 | Anti-runaway protection device of hand-held ground trowelling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910935936.6A CN110670453B (en) | 2019-09-29 | 2019-09-29 | Anti-runaway protection device of hand-held ground trowelling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110670453A CN110670453A (en) | 2020-01-10 |
| CN110670453B true CN110670453B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910935936.6A Active CN110670453B (en) | 2019-09-29 | 2019-09-29 | Anti-runaway protection device of hand-held ground trowelling machine |
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| CN (1) | CN110670453B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379207B (en) * | 2020-03-26 | 2021-11-05 | 张晓奎 | A hand-held type equipment of finishing for concrete road construction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205713002U (en) * | 2016-04-28 | 2016-11-23 | 张瑞泉 | A kind of electronic finisher building use |
| CN109025220A (en) * | 2018-08-03 | 2018-12-18 | 深圳市南硕明泰科技有限公司 | A kind of concrete polisher closed with centrifugation out of control |
| CN211079838U (en) * | 2019-09-29 | 2020-07-24 | 南宁学院 | Anti-out-of-control protection device of hand-held ground troweling machine |
-
2019
- 2019-09-29 CN CN201910935936.6A patent/CN110670453B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205713002U (en) * | 2016-04-28 | 2016-11-23 | 张瑞泉 | A kind of electronic finisher building use |
| CN109025220A (en) * | 2018-08-03 | 2018-12-18 | 深圳市南硕明泰科技有限公司 | A kind of concrete polisher closed with centrifugation out of control |
| CN211079838U (en) * | 2019-09-29 | 2020-07-24 | 南宁学院 | Anti-out-of-control protection device of hand-held ground troweling machine |
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| Publication number | Publication date |
|---|---|
| CN110670453A (en) | 2020-01-10 |
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