CN112482718B - Trowelling machine safety device based on human engineering - Google Patents
Trowelling machine safety device based on human engineering Download PDFInfo
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- CN112482718B CN112482718B CN202011579738.XA CN202011579738A CN112482718B CN 112482718 B CN112482718 B CN 112482718B CN 202011579738 A CN202011579738 A CN 202011579738A CN 112482718 B CN112482718 B CN 112482718B
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- 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
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- 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
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- Auxiliary Devices For Machine Tools (AREA)
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Abstract
The invention relates to the field of building safety equipment, in particular to a safety protection device of a trowelling machine based on human engineering, which comprises a handle, a main body box, a protection disc, a trowelling sheet, a torsion spring, a motor, a fixed cylinder, a starting mechanism, a stop limiting mechanism, a driving mechanism, a self-locking mechanism, a reset opening mechanism and a support rod, wherein one end of the handle is fixedly connected with the torsion spring, the side wall of the torsion spring is fixedly connected with the main body box, the side wall of the bottom of the main body box is fixedly connected with the motor, the side wall of the main body box is fixedly connected with the protection disc, the bottom end of the output end of the motor is fixedly connected with a plurality of trowelling sheets, and the side wall of the top end of the main body box is fixedly connected with the support rod; utilize actuating mechanism can upwards stimulate pivoted handle, make the handle be in vertical state, reduced the striking scope of handle, guaranteed staff's health safety.
Description
Technical Field
The invention relates to the field of building safety equipment, in particular to a safety protection device of a trowelling machine based on human engineering.
Background
The ground smoothing machine is also called a cement smoothing machine, and the main structure of the ground smoothing machine is a trowel rotor driven by a gasoline engine, 2-4 trowels are arranged on the bottom surface of a cross in the middle of the rotor, and the inclination direction of the trowels is consistent with the rotation direction of the rotor.
The user is when using ground smoothing machine, the user can loosen the handle, and the handle is under the control that does not have the manpower, can rotate and rotate downwards along with the smear piece, because the handle is longer, people's shank can be collided to pivoted handle, make personnel be injured, perhaps when personnel want to use ground smoothing machine, need make ground smoothing machine stall, and ground smoothing machine's slew velocity is very fast, very difficult safe with ground smoothing machine stall, staff's work danger coefficient has been increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a safety protection device of an trowelling machine based on human engineering.
The technical scheme adopted by the invention for solving the technical problem is as follows: a safety protection device of a trowelling machine based on human engineering comprises a handle, a main body box, a protection disc, trowelling sheets, a torsion spring, a motor, a fixing cylinder, a starting mechanism, a stop limiting mechanism, a driving mechanism, a self-locking mechanism, a reset opening mechanism and a support rod, wherein one end of the handle is fixedly connected with the torsion spring, the side wall of the torsion spring is fixedly connected with the main body box, the side wall of the bottom of the main body box is fixedly connected with the motor, the side wall of the main body box is fixedly connected with the protection disc, the bottom end of the output end of the motor is fixedly connected with a plurality of trowelling sheets, and the side wall of the top end of the main body box is fixedly connected with the support rod;
the utility model discloses a handle, including main body case, motor, lateral wall fixedly connected with of handle, the output pot head of motor is equipped with the actuating mechanism who is used for upwards pulling the handle, the lateral wall fixedly connected with of handle is used for starting actuating mechanism's actuating mechanism, the top lateral wall fixedly connected with of main part is used for stopping actuating mechanism and the locking stop gear who restricts the handle position, the inside wall of main part case is provided with the self-locking mechanism who is used for restricting actuating mechanism and resets, the inside wall sliding connection of main part case has the opening mechanism that resets that is used for cancelling self-locking action of self-locking mechanism.
Specifically, actuating mechanism includes the arc pole, starts the inclined plane board, starts gag lever post, links up fishplate bar, return spring and starting block, the lateral wall fixedly connected with arc pole of handle, the other end of arc pole runs through the lateral wall of main part case, the inside wall fixedly connected with of main part case starts the gag lever post, the lateral wall through connection that starts the gag lever post has linking up fishplate bar, the lateral wall cover that starts the gag lever post is equipped with return spring, return spring's one end and linking up fishplate bar's lateral wall fixed connection, return spring's the other end and the inside wall fixed connection of main part case, the lateral wall fixedly connected with of linking up fishplate bar starts the inclined plane board.
Specifically, the stop limit mechanism comprises a C-shaped frame, a rotating door, an inclined push rod, a stop return spring, a stress plate, a sliding inner rod, a sliding outer rod and a square groove, the side wall of the main body box is fixedly connected with a C-shaped frame which is rotationally connected with a rotating door through a hinge, the length of the rotating door is larger than the width of the opening of the C-shaped frame, an inclined plane push rod is inserted into the side wall of the C-shaped frame, the side wall of the inclined push rod is connected with the side wall of the C-shaped frame in a sliding way, the side wall of the C-shaped frame is fixedly connected with two stress plates which are symmetrically distributed, the side wall of the stress plate is fixedly connected with a stop return spring, the side wall of the top end of the main body box is fixedly connected with a sliding outer rod, the side wall of the top end of the sliding outer rod is provided with a sliding groove, the side wall of the sliding groove is connected with a sliding inner rod in a sliding way, the lateral wall of spout has seted up square groove, the top lateral wall fixedly connected with of pole in the slip has two parallel splint of placing.
Specifically, the driving mechanism comprises a driving disc, a tooth groove, a rotating rod, a toothed bar, a rotating disc, a mounting frame, a carrying disc, a steel wire coil, a spline, a key groove and a limiting groove, the driving disc is sleeved on the output end of the motor, the tooth groove is formed in the top side wall of the driving disc, the toothed bar is meshed with the side wall of the tooth groove, teeth are arranged on the bottom side wall of the toothed bar, the top side wall of the toothed bar penetrates through a fixing cylinder, the side wall of the toothed bar is fixedly connected with the rotating rod, the side wall of the rotating rod is provided with a plurality of key grooves distributed in an array manner, the side wall of the rotating rod is fixedly connected with the rotating disc, the top side wall of the supporting rod is fixedly connected with the mounting frame, the side wall of the mounting frame is rotatably connected with the side wall of the rotating disc, the side wall of the spline is slidably connected with the side wall of the key groove, the last splint of pole have the thing dish of carrying through circular slot sliding connection in the slip, the round hole has been seted up to the top lateral wall of carrying the thing dish, the lateral wall cover of carrying the thing dish is equipped with cable wire coil, cable wire coil's one end and the lateral wall fixed connection of handle, the round hole is passed to the one end of dwang, the spacing groove has been seted up to the lateral wall of round hole.
Specifically, self-locking mechanism includes from locking piece, standing groove, mounting groove and auto-lock reset spring, the mounting groove has been seted up to the bottom inside wall of main part case, the standing groove has been seted up to the lateral wall of mounting groove, the bottom lateral wall fixedly connected with auto-lock reset spring of mounting groove, auto-lock reset spring's top lateral wall fixedly connected with is from locking piece, the lateral wall of self-locking piece is the inclined plane setting.
Specifically, the reset opening mechanism comprises a contraction spring, a reset slide rod, a reset extrusion block, a round rod, an installation cavity, a reset inclined plate, a moving ring, an extrusion spring, a U-shaped rod and a reset connecting rod, wherein the inner side wall of the main box is fixedly connected with the reset slide rod, the side wall of the reset slide rod is slidably connected with the reset extrusion block, the side wall of the reset slide rod is sleeved with the contraction spring, one end of the contraction spring is fixedly connected with the inner side wall of the main box, and the other end of the contraction spring is fixedly connected with the side wall of the reset extrusion block;
the utility model discloses a safe and convenient operation, including main part case, lateral wall fixedly connected with round bar, the other end fixedly connected with installation cavity of round bar, the inside wall fixedly connected with of installation cavity connecting rod that resets, the lateral wall cover of connecting rod that resets is equipped with the removal ring, the lateral wall cover of connecting rod that resets is equipped with the extrusion spring, the one end of extrusion spring and the bottom inside wall fixed connection of installation cavity, the other end of extrusion spring and the bottom lateral wall fixed connection who removes the ring, the lateral wall fixedly connected with swash plate that resets of removal ring, the lateral wall fixedly connected with U type pole of swash plate that resets, U type pole is located the standing groove upper end directly, the length of U type pole is less than the length of standing groove.
The invention has the beneficial effects that:
(1) according to the safety protection device for the trowelling machine based on human engineering, when the handle rotates downwards, the handle can open the starting mechanism, the self-locking mechanism locks the starting mechanism to prevent the starting inclined plane plate from returning leftwards and being pulled back to the original position in advance by the return spring, so that the starting mechanism fails to start, then the starting mechanism starts the driving mechanism, the driving mechanism pulls the handle upwards, when the handle rotates downwards, the driving mechanism can be started in real time to pull the handle upwards, and the phenomenon that the rotating handle damages people due to the fact that the handle rotates downwards is avoided.
(2) The safety protection device for the trowelling machine based on the human engineering is characterized in that when the handle is pulled upwards by the driving mechanism to be close to a vertical state, the rotating door is rotated inwards by the handle, when the handle completely enters the C-shaped frame, the rotating door returns to the original position under the action of the hinge, the rotating door is blocked by the C-shaped frame, the position of the handle is limited, the position of the handle can be limited in real time, the vertical state of the handle is ensured, more people cannot be hit by the handle, the injury range of the handle is reduced, meanwhile, the handle pushes the inclined plane push rod, the inclined plane of the inclined plane push rod pushes the sliding inner rod upwards, the sliding inner rod pushes the driving mechanism upwards, the driving mechanism is closed, the driving mechanism does not pull the handle upwards any more, the energy consumption of the driving mechanism is reduced, when the handle needs to be used, only the rotating door needs to be opened, when the handle is put down, the inclined push rod can restore to the original position under the contraction of the stop return spring without being extruded by the handle.
(3) According to the safety protection device for the trowelling machine based on human engineering, the driving disc drives the toothed bar to rotate through the tooth socket, the toothed bar drives the rotating rod to rotate, the starting mechanism pushes the mounting frame upwards through the supporting rod, the mounting frame drives the rotating disc to move upwards, the rotating disc drives the spline to move upwards, the spline moves upwards along the key socket, the spline can be inserted into the limiting groove, the rotating rod drives the carrying disc to rotate through the meshing of the spline and the limiting groove, the carrying disc runs in real time when the handle rotates downwards, the handle is pulled upwards through the steel cable coil by the carrying disc, the purpose that the handle can be pulled upwards in real time is achieved, the handle is prevented from being kept in a horizontal state all the time, the impact range of the handle is reduced, and the safety of staff is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic perspective view of a safety protection device of an ergonomic trowelling machine according to the present invention;
FIG. 2 is a schematic cross-sectional top view of an ergonomic trowel safety shield apparatus according to the present invention;
FIG. 3 is a schematic cross-sectional view of a main body box of the safety protection device of the trowelling machine based on human engineering provided by the invention;
FIG. 4 is a schematic sectional view of an installation cavity of an ergonomic trowel safety guard according to the present invention;
FIG. 5 is a schematic cross-sectional view of a self-locking block of the safety protection device of the trowelling machine based on human engineering provided by the present invention;
FIG. 6 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 7 is an enlarged view of the structure at B in FIG. 3;
FIG. 8 is an enlarged view of the structure at C in FIG. 3;
FIG. 9 is an enlarged view of the structure of FIG. 5 at D;
FIG. 10 is an enlarged view of the structure at E in FIG. 8;
FIG. 11 is an enlarged view of the structure of FIG. 1 at F;
fig. 12 is an enlarged schematic view of the structure at G in fig. 1.
In the figure: 1. a handle; 2. a main body case; 3. a protection disk; 4. a smoothing sheet; 5. a torsion spring; 6. a motor; 7. a fixed cylinder; 8. a starting mechanism; 801. an arcuate bar; 802. starting the inclined plane plate; 803. starting the limiting rod; 804. a connection plate; 805. a return spring; 806. a start block; 9. a stop limit mechanism; 901. a C-shaped frame; 902. a rotating door; 903. a bevel push rod; 904. a detent return spring; 905. a stress plate; 906. sliding the inner rod; 907. sliding the outer rod; 908. a square groove; 10. a drive mechanism; 1001. a drive disk; 1002. a tooth socket; 1003. rotating the rod; 1004. a rack bar; 1005. rotating the disc; 1006. a mounting frame; 1007. a carrying tray; 1008. a wire rope coil; 1009. a spline; 1010. a keyway; 1011. a limiting groove; 11. a self-locking mechanism; 1101. a self-locking block; 1102. a placement groove; 1103. mounting grooves; 1104. a self-locking return spring; 12. resetting the opening mechanism; 1201. a retraction spring; 1202. resetting the sliding rod; 1203. resetting the extrusion block; 1204. a round bar; 1205. a mounting cavity; 1206. resetting the inclined plate; 1207. moving the circular ring; 1208. extruding the spring; 1209. a U-shaped rod; 1210. a reset connecting rod; 13. a support rod.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific examples, and those skilled in the art will appreciate the advantages and utilities of the present invention from the disclosure herein. It should be noted that the drawings provided in the following embodiments are for illustrative purposes only, are schematic drawings rather than actual drawings, and should not be construed as limiting the present invention, and in order to better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the terms are used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are used for illustrative purposes only and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings used in the specific situations.
As shown in fig. 1-12, the safety protection device of the trowelling machine based on human engineering comprises a handle 1, a main body box 2, a protection disc 3, trowelling sheets 4, a torsion spring 5, a motor 6, a fixed cylinder 7, a starting mechanism 8, a stop limiting mechanism 9, a driving mechanism 10, a self-locking mechanism 11, a reset opening mechanism 12 and a support rod 13, wherein one end of the handle 1 is fixedly connected with the torsion spring 5, the side wall of the torsion spring 5 is fixedly connected with the main body box 2, the side wall of the bottom end of the main body box 2 is fixedly connected with the motor 6, the side wall of the main body box 2 is fixedly connected with the protection disc 3, the bottom end of the output end of the motor 6 is fixedly connected with a plurality of trowelling sheets 4, and the side wall of the top end of the main body box 2 is fixedly connected with the support rod 13;
the output pot head of motor 6 is equipped with actuating mechanism 10 that is used for upwards pulling handle 1, the lateral wall fixedly connected with of handle 1 is used for starting actuating mechanism 10's actuating mechanism 8, the top lateral wall fixedly connected with of main part case 2 is used for stopping actuating mechanism 10 and the locking stop gear 9 of restriction handle 1 position, the inside wall of main part case 2 is provided with the self-locking mechanism 11 that is used for restricting actuating mechanism 8 and resets, the inside wall sliding connection of main part case 2 has the opening mechanism 12 that resets that is used for cancelling self-locking mechanism 11 auto-lock action.
When the cement floor troweling machine normally works, the motor 6 is started to drive the troweling sheet 4 to rotate, an employee holds the handle 1 to guide the troweling sheet 4 to move forwards, the troweling sheet 4 trowels cement floor, when the employee has an operation accident, the handle 1 is loosened, the motor 6 drives the troweling sheet 4 to rotate, centrifugal force generated by rotation of the troweling sheet 4 enables the handle 1 to rotate downwards through the torsion spring 5, the starting mechanism 8 is started in the process that the handle 1 rotates downwards, the starting mechanism 8 starts the self-locking mechanism 11 to lock the starting mechanism 8 to prevent the starting mechanism 8 from stopping midway, the starting mechanism 8 starts the driving mechanism 10 through the supporting rod 13, the driving mechanism 10 pulls the handle 1 upwards, the handle 1 is pulled to a vertical state, the position of the handle 1 is limited by the stopping limiting mechanism 9, meanwhile, the stopping limiting mechanism 9 stops the driving mechanism 10 from pulling the handle 1 upwards, the handle 1 starts the reset opening mechanism 12, stops the self-locking mechanism 11, and enables the starting mechanism 8 to restore itself to the original position.
Specifically, actuating mechanism 8 includes curved pole 801, start inclined plane board 802, start gag lever post 803, joint board 804, return spring 805 and starting block 806, the lateral wall fixedly connected with curved pole 801 of handle 1, the other end of curved pole 801 runs through the lateral wall of main part case 2, the inside wall fixedly connected with of main part case 2 starts gag lever post 803, the lateral wall through connection that starts gag lever post 803 has joint board 804, the lateral wall cover that starts gag lever post 803 is equipped with return spring 805, the one end of return spring 805 and the lateral wall fixed connection of joint board 804, the other end of return spring 805 and the inside wall fixed connection of main part case 2, the lateral wall fixedly connected with of joint board 804 starts inclined plane board 802.
Handle 1 is when the downwardly turned, handle 1 can promote curved pole 801, make curved pole 801 will start inclined plane board 802 and promote right, start inclined plane board 802 and close self-locking mechanism 11, prevent that start inclined plane board 802 can return left, be pulled back original position in advance by return spring 805, and then lead to starting mechanism 8 to start failure, then, start inclined plane board 802 upwards promotes start block 806 through the inclined plane of self, start block 806 starts actuating mechanism 10 through upwards promoting bracing piece 13, actuating mechanism 10 upwards pulls handle 1, when handle 1 rotates downwards, just can start actuating mechanism 10 in real time, pull handle 1 upwards, avoid appearing handle 1 and rotate downwards, pivoted handle 1 injures personnel.
Specifically, the stop limit mechanism 9 includes a C-shaped frame 901, a rotating door 902, an inclined push rod 903, a stop return spring 904, a stress plate 905, a sliding inner rod 906, a sliding outer rod 907 and a square groove 908, the side wall of the main body case 2 is fixedly connected with the C-shaped frame 901, the C-shaped frame 901 is rotatably connected with the rotating door 902 through a hinge, the length of the rotating door 902 is larger than the width of the opening of the C-shaped frame 901, the inclined push rod 903 is inserted in the side wall of the C-shaped frame 901, the side wall of the inclined push rod 903 is slidably connected with the side wall of the C-shaped frame 901, the side wall of the C-shaped frame 901 is fixedly connected with two symmetrically distributed stress plates 905, the side wall of the stress plate 905 is fixedly connected with the stop return spring 904, the side wall at the top end of the main body case 2 is fixedly connected with the sliding outer rod 907, the side wall at the top end of the sliding outer rod 907 is provided with a sliding groove, the side wall of the sliding groove is slidably connected with the sliding inner rod 906, the side wall of the sliding groove is provided with the square groove 908, the side wall of the top end of the sliding inner rod 906 is fixedly connected with two clamping plates which are arranged in parallel.
When the handle 1 is pulled upwards by the driving mechanism 10 to be close to a vertical state, the handle 1 rotates the rotating door 902 inwards, when the handle 1 completely enters the C-shaped frame 901, the rotating door 902 enables the rotating door 902 to return to the original position under the action of the hinge, the rotating door 902 is blocked by the C-shaped frame 901, the position of the handle 1 is limited, the position of the handle 1 can be limited in real time, the vertical state of the handle 1 is ensured, the handle 1 cannot hit more people, the injury range of the handle 1 is reduced, meanwhile, the handle 1 pushes the inclined plane push rod 903, the inclined plane of the inclined plane push rod 903 pushes the sliding inner rod 906 upwards, the sliding inner rod 906 pushes the driving mechanism 10 upwards, the driving mechanism 10 is closed, the driving mechanism 10 does not pull the handle 1 upwards any more, the energy consumption of the driving mechanism 10 is reduced, when the handle 1 needs to be used, only the rotating door 902 needs to be opened, the handle 1 is lowered and the ramp plunger 903 returns to its original position without the squeezing of the handle 1 under the contraction of the detent return spring 904.
Specifically, the driving mechanism 10 includes a driving disc 1001, a tooth slot 1002, a rotating rod 1003, a toothed bar 1004, a rotating disc 1005, a mounting rack 1006, a carrying disc 1007, a steel cable coil 1008, a spline 1009, a key slot 1010 and a limit slot 1011, the output end of the motor 6 is sleeved with the driving disc 1001, the top side wall of the driving disc 1001 is provided with the tooth slot 1002, the side wall of the tooth slot 1002 is engaged with the toothed bar 1004, the bottom side wall of the toothed bar 1004 is provided with teeth, the top side wall of the toothed bar 1004 passes through the fixing cylinder 7, the side wall of the toothed bar 1004 is fixedly connected with the rotating rod 1003, the side wall of the rotating rod 1003 is provided with a plurality of key slots 1010 distributed in an array, the side wall of the rotating rod 1003 is fixedly connected with the rotating disc 1005, the top side wall of the supporting rod 13 is fixedly connected with the mounting rack 1006, the side wall of the mounting rack 1006 is rotatably connected with the side wall of the rotating disc 1005, the top side wall of the rotating disc 1005 is fixedly connected with the spline, the side wall of the spline 1009 is slidably connected with the side wall of the key slot 1010, the splint on the slip interior pole 906 pass through circular slot sliding connection and have the thing dish of carrying 1007, and the round hole has been seted up to the top lateral wall of carrying the thing dish 1007, and the lateral wall cover of carrying the thing dish 1007 is equipped with cable wire coil 1008, and the one end of cable wire coil 1008 and the lateral wall fixed connection of handle 1, the round hole is passed to the one end of dwang 1003, and spacing groove 1011 has been seted up to the lateral wall of round hole.
Specifically, self-locking mechanism 11 includes self-locking piece 1101, standing groove 1102, mounting groove 1103 and auto-locking reset spring 1104, and mounting groove 1103 has been seted up to the bottom inside wall of main part case 2, and standing groove 1102 has been seted up to the lateral wall of mounting groove 1103, and the bottom lateral wall fixedly connected with auto-locking reset spring 1104 of mounting groove 1103, auto-locking reset spring 1104's top lateral wall fixedly connected with self-locking piece 1101, and the lateral wall of self-locking piece 1101 is the inclined plane setting.
The starting mechanism 8 pushes the self-locking block 1101 into the mounting groove 1103, when the starting mechanism 8 passes over the self-locking block 1101, the self-locking block 1101 is pushed out of the self-locking block 1101 by the self-locking return spring 1104, the self-locking block 1101 blocks the starting mechanism 8, the starting mechanism 8 is prevented from returning to the original position midway, the starting mechanism 8 fails to operate, and the normal operation of the driving mechanism 10 is ensured.
Specifically, the reset opening mechanism 12 includes a retraction spring 1201, a reset sliding rod 1202, a reset extrusion block 1203, a round rod 1204, a mounting cavity 1205, a reset sloping plate 1206, a movable ring 1207, an extrusion spring 1208, a U-shaped rod 1209 and a reset connecting rod 1210, the inner side wall of the main body box 2 is fixedly connected with the reset sliding rod 1202, the side wall of the reset sliding rod 1202 is slidably connected with the reset extrusion block 1203, the side wall of the reset sliding rod 1202 is sleeved with the retraction spring 1201, one end of the retraction spring 1201 is fixedly connected with the inner side wall of the main body box 2, and the other end of the retraction spring 1201 is fixedly connected with the side wall of the reset extrusion block 1203;
when the handle 1 is pulled upwards to be in a vertical state, the handle 1 extrudes the reset sliding rod 1202, the reset sliding rod 1202 extrudes the reset extrusion block 1203, the reset extrusion block 1203 can be pushed rightwards, the handle 1 can be fed back in real time when being in the vertical state, and the self-locking mechanism 11 and the starting mechanism 8 can be closed in real time.
Lateral wall fixedly connected with round bar 1204 of main part case 2, the other end fixedly connected with installation cavity 1205 of round bar 1204, the inside wall fixedly connected with of installation cavity 1205 reset link 1210, the lateral wall cover of reset link 1210 is equipped with removal ring 1207, the lateral wall cover of reset link 1210 is equipped with extrusion spring 1208, the one end of extrusion spring 1208 and the bottom inside wall fixed connection of installation cavity 1205, the other end of extrusion spring 1208 and the bottom lateral wall fixed connection who removes ring 1207, the lateral wall fixedly connected with swash plate 1206 that removes ring 1207 resets, the lateral wall fixedly connected with U type pole 1209 of swash plate 1206 resets, U type pole 1209 is located the upper end directly over of standing groove 1102, the length of U type pole 1209 is less than the length of standing groove 1102.
The working principle is as follows: when the automatic cement floor trowelling machine normally works, the motor 6 is started to drive the trowelling sheet 4 to rotate, a worker holds the handle 1 to guide the trowelling sheet 4 to move forwards, the trowelling sheet 4 trowels cement floor, when the worker has an operation accident, the handle 1 is loosened, the motor 6 drives the trowelling sheet 4 to rotate, centrifugal force generated by rotation of the trowelling sheet 4 enables the handle 1 to rotate downwards through the torsion spring 5, the starting mechanism 8 is started in the process that the handle 1 rotates downwards, the starting mechanism 8 starts the self-locking mechanism 11 to lock the starting mechanism 8 to prevent the starting mechanism 8 from stopping midway, the starting mechanism 8 starts the driving mechanism 10 through the supporting rod 13, the driving mechanism 10 pulls the handle 1 upwards, the handle 1 is pulled to be in a vertical state and then is limited in the position of the handle 1 by the stopping limiting mechanism 9, meanwhile, the stopping limiting mechanism 9 enables the driving mechanism 10 to stop upwards pulling the handle 1, moreover, the handle 1 will start the reset opening mechanism 12, and stop the self-locking mechanism 11, so that the starting mechanism 8 can self-restore to the original position;
when the handle 1 rotates downwards, the handle 1 pushes the arc rod 801, so that the arc rod 801 pushes the start inclined plane plate 802 to the right, the start inclined plane plate 802 closes the self-locking mechanism 11, the start inclined plane plate 802 is prevented from returning to the left and is pulled back to the original position in advance by the return spring 805, and further the start mechanism 8 fails to start, then the start inclined plane plate 802 pushes the start block 806 upwards through the inclined plane of the start inclined plane plate 802, the start block 806 pushes the support rod 13 upwards to start the driving mechanism 10, the driving mechanism 10 pulls the handle 1 upwards, when the handle 1 rotates downwards, the driving mechanism 10 can be started in real time, the handle 1 is pulled upwards, the phenomenon that the handle 1 rotates downwards is avoided, the rotating handle 1 damages people, the motor 6 drives the driving disc 1001 to rotate, the driving disc 1001 drives the toothed bar 1004 to rotate through the toothed groove 1002, the toothed bar 1004 drives the rotating rod 1003 to rotate, the starting mechanism 8 pushes the mounting rack 1006 upwards through the support rod 13, the mounting rack 1006 drives the rotating disc 1005 to move upwards, the rotating disc 1005 drives the spline 1009 to move upwards, the spline 1009 moves upwards along the key groove 1010, the spline 1009 can be inserted into the limit groove 1011, the rotating rod 1003 drives the object carrying disc 1007 to rotate through the meshing of the spline 1009 and the limit groove 1011, when the handle 1 rotates downwards, the object carrying disc 1007 runs in real time, the object carrying disc 1007 pulls the handle 1 upwards through the wire coil 1008, the handle 1 can be pulled upwards in real time, the handle 1 is prevented from being kept in a horizontal state all the time, the hitting range of the handle 1 is reduced, the safety of staff is improved, when the handle 1 is pulled upwards by the driving mechanism 10 to be close to a vertical state, the handle 1 rotates the rotating door 902 inwards, when the handle 1 completely enters the C-shaped frame 901, the rotating door 902 returns to the original position under the action of the hinge, the rotating door 902 is blocked by the C-shaped frame 901, the position of the handle 1 is limited, the position of the handle 1 can be limited in real time, the vertical state of the handle 1 is guaranteed, the handle 1 cannot reach more people, the injury range of the handle 1 is reduced, meanwhile, the handle 1 can push the inclined plane push rod 903, the inclined plane of the inclined plane push rod 903 can push the sliding inner rod 906 upwards, the sliding inner rod 906 can push the driving mechanism 10 upwards, the driving mechanism 10 is closed, the driving mechanism 10 does not pull the handle 1 upwards any more, the energy consumption of the driving mechanism 10 is reduced, when the handle 1 needs to be used, the rotating door 902 only needs to be opened, the handle 1 is put down, and the inclined plane push rod 903 can restore to the original position under the contraction of the stop return spring 904 without the extrusion of the handle 1;
then, when the handle 1 is pulled upwards to a vertical state, the handle 1 will extrude the reset sliding rod 1202, the reset sliding rod 1202 extrudes the reset extrusion block 1203, the reset extrusion block 1203 can be pushed rightwards, the handle 1 can be fed back in real time when being in the vertical state, the self-locking mechanism 11 and the starting mechanism 8 can be closed in real time, the reset extrusion block 1203 will extrude the reset sloping plate 1206, the reset sloping plate 1206 is moved downwards by the sloping surface of the reset sloping plate 1206, the reset sloping plate 1206 will drive the U-shaped rod 1209 to move downwards, the U-shaped rod 1209 can close the self-locking mechanism 11, and one side of the U-shaped rod 1209 is placed in the placing groove 1102 of the self-locking mechanism 11, so that the starting mechanism 8 can return to the original position by the self-return spring 805, and the starting sloping plate 802 of the starting mechanism 8 will pass through the U-shaped rod 1209, so that the occupation of the space is reduced, and the U-shaped rod 1209 will not obstruct the resetting of the starting mechanism 8, ensuring that the actuating mechanism 8 can continue to operate next time.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (1)
1. The utility model provides a trowelling machine safety device based on human engineering which characterized in that: the handle comprises a handle (1), a main body box (2), a protective disc (3), leveling sheets (4), a torsion spring (5), a motor (6), a fixed cylinder (7), a starting mechanism (8), a stop limiting mechanism (9), a driving mechanism (10), a self-locking mechanism (11), a reset opening mechanism (12) and a support rod (13), wherein one end of the handle (1) is fixedly connected with the torsion spring (5), the side wall of the torsion spring (5) is fixedly connected with the main body box (2), the side wall of the bottom end of the main body box (2) is fixedly connected with the motor (6), the side wall of the main body box (2) is fixedly connected with the protective disc (3), the bottom end of the output end of the motor (6) is fixedly connected with a plurality of leveling sheets (4), and the side wall of the top end of the main body box (2) is fixedly connected with the support rod (13);
the automatic lifting device is characterized in that a driving mechanism (10) used for pulling the handle (1) upwards is sleeved at the output end of the motor (6), a starting mechanism (8) used for starting the driving mechanism (10) is fixedly connected to the side wall of the handle (1), a stopping limiting mechanism (9) used for stopping the driving mechanism (10) and limiting the position of the handle (1) is fixedly connected to the side wall of the top end of the main box (2), a self-locking mechanism (11) used for limiting the resetting of the starting mechanism (8) is arranged on the inner side wall of the main box (2), and a resetting opening mechanism (12) used for canceling the self-locking action of the self-locking mechanism (11) is slidably connected to the inner side wall of the main box (2); the starting mechanism (8) comprises an arc-shaped rod (801), a starting inclined plane plate (802), a starting limiting rod (803), a connecting plate (804), a return spring (805) and a starting block (806), the side wall of the handle (1) is fixedly connected with an arc-shaped rod (801), the other end of the arc-shaped rod (801) penetrates through the side wall of the main body box (2), the inner side wall of the main body box (2) is fixedly connected with a starting limit rod (803), the side wall of the starting limit rod (803) is connected with a connecting plate (804) in a penetrating way, a return spring (805) is sleeved on the side wall of the starting limiting rod (803), one end of the return spring (805) is fixedly connected with the side wall of the connecting plate (804), the other end of the return spring (805) is fixedly connected with the inner side wall of the main body box (2), the side wall of the connecting plate (804) is fixedly connected with a starting inclined plate (802);
the stopping and limiting mechanism (9) comprises a C-shaped frame (901), a rotating door (902), an inclined push rod (903), a stopping return spring (904), a stress plate (905), a sliding inner rod (906), a sliding outer rod (907) and a square groove (908), the side wall of the main body box (2) is fixedly connected with the C-shaped frame (901), the C-shaped frame (901) is rotatably connected with the rotating door (902) through a hinge, the length of the rotating door (902) is greater than the width of an opening of the C-shaped frame (901), the inclined push rod (903) is inserted into the side wall of the C-shaped frame (901), the side wall of the inclined push rod (903) is slidably connected with the side wall of the C-shaped frame (901), the side wall of the C-shaped frame (901) is fixedly connected with the two stress plates (904) which are symmetrically distributed, the side wall of the stress plate (905) is fixedly connected with the stopping return spring (904), the side wall of the top end of the main body box (2) is fixedly connected with the sliding outer rod (907), the side wall of the top end of the sliding outer rod (907) is provided with a sliding groove, the side wall of the sliding groove is connected with a sliding inner rod (906) in a sliding mode, the side wall of the sliding groove is provided with a square groove (908), and the side wall of the top end of the sliding inner rod (906) is fixedly connected with two clamping plates which are arranged in parallel;
the driving mechanism (10) comprises a driving disc (1001), tooth grooves (1002), a rotating rod (1003), a toothed bar (1004), a rotating disc (1005), a mounting frame (1006), a loading disc (1007), a steel cable coil (1008), a spline (1009), a key groove (1010) and a limiting groove (1011), the driving disc (1001) is sleeved at the output end of the motor (6), the tooth grooves (1002) are formed in the top side wall of the driving disc (1001), the toothed bar (1004) is meshed with the side wall of the tooth grooves (1002), the bottom side wall of the toothed bar (1004) is provided with teeth, the top side wall of the toothed bar (1004) penetrates through the fixing barrel (7), the side wall of the toothed bar (1004) is fixedly connected with the rotating rod (1003), the key grooves (1010) distributed in a plurality of arrays are formed in the side wall of the rotating rod (1003), the side wall of the rotating rod (1003) is fixedly connected with the rotating disc (1005), the side wall of the top end of the supporting rod (13) is fixedly connected with a mounting frame (1006), the side wall of the mounting frame (1006) is rotatably connected with the side wall of a rotating disc (1005), the side wall of the top end of the rotating disc (1005) is fixedly connected with a spline (1009), the side wall of the spline (1009) is slidably connected with the side wall of a key groove (1010), a clamping plate on the sliding inner rod (906) is slidably connected with a carrying disc (1007) through a circular groove, the side wall of the top end of the carrying disc (1007) is provided with a circular hole, the side wall of the carrying disc (1007) is sleeved with a steel cable coil (1008), one end of the steel cable coil (1008) is fixedly connected with the side wall of the handle (1), one end of the rotating rod (1003) penetrates through the circular hole, and the side wall of the circular hole is provided with a limiting groove (1011);
the self-locking mechanism (11) comprises a self-locking block (1101), a placing groove (1102), a mounting groove (1103) and a self-locking return spring (1104), wherein the mounting groove (1103) is formed in the inner side wall of the bottom end of the main box (2), the placing groove (1102) is formed in the side wall of the mounting groove (1103), the self-locking return spring (1104) is fixedly connected to the side wall of the bottom end of the mounting groove (1103), the self-locking block (1101) is fixedly connected to the side wall of the top end of the self-locking return spring (1104), and the side wall of the self-locking block (1101) is arranged in an inclined plane;
the reset opening mechanism (12) comprises a contraction spring (1201), a reset sliding rod (1202), a reset extrusion block (1203), a round rod (1204), a mounting cavity (1205), a reset inclined plate (1206), a movable ring (1207), an extrusion spring (1208), a U-shaped rod (1209) and a reset connecting rod (1210), wherein the inner side wall of the main body box (2) is fixedly connected with the reset sliding rod (1202), the side wall of the reset sliding rod (1202) is slidably connected with the reset extrusion block (1203), the side wall of the reset sliding rod (1202) is sleeved with the contraction spring (1201), one end of the contraction spring (1201) is fixedly connected with the inner side wall of the main body box (2), and the other end of the contraction spring (1201) is fixedly connected with the side wall of the reset extrusion block (1203);
the side wall of the main body box (2) is fixedly connected with a round rod (1204), the other end of the round rod (1204) is fixedly connected with a mounting cavity (1205), the inner side wall of the installation cavity (1205) is fixedly connected with a reset connecting rod (1210), the side wall of the reset connecting rod (1210) is sleeved with a movable circular ring (1207), an extrusion spring (1208) is sleeved on the side wall of the reset connecting rod (1210), one end of the extrusion spring (1208) is fixedly connected with the inner side wall of the bottom end of the mounting cavity (1205), the other end of the extrusion spring (1208) is fixedly connected with the side wall of the bottom end of the movable circular ring (1207), the side wall of the movable circular ring (1207) is fixedly connected with a reset sloping plate (1206), the side wall of the reset sloping plate (1206) is fixedly connected with a U-shaped rod (1209), the U-shaped rod (1209) is positioned at the right upper end of the placing groove (1102), and the length of the U-shaped rod (1209) is smaller than that of the placing groove (1102).
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| CN202011579738.XA CN112482718B (en) | 2020-12-28 | 2020-12-28 | Trowelling machine safety device based on human engineering |
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| CN202011579738.XA CN112482718B (en) | 2020-12-28 | 2020-12-28 | Trowelling machine safety device based on human engineering |
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| CN112482718B true CN112482718B (en) | 2022-09-23 |
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| CN212128763U (en) * | 2020-04-09 | 2020-12-11 | 安徽海龙机械有限公司 | Safety handle device of trowelling machine |
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| CA1131461A (en) * | 1979-01-08 | 1982-09-14 | Christian T. Tertinek | Rotary power trowel |
| SE8502199D0 (en) * | 1985-05-06 | 1985-05-06 | Dynapac Ab | SECURITY CONNECTION FOR VEIL-DRIVE MACHINES |
| JP6216090B1 (en) * | 2017-05-29 | 2017-10-18 | 均 美藤 | Concrete floor finishing robot |
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