CN215859941U - Anti-falling device for platform ladder - Google Patents
Anti-falling device for platform ladder Download PDFInfo
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- CN215859941U CN215859941U CN202121805700.XU CN202121805700U CN215859941U CN 215859941 U CN215859941 U CN 215859941U CN 202121805700 U CN202121805700 U CN 202121805700U CN 215859941 U CN215859941 U CN 215859941U
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- platform ladder
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Abstract
The utility model discloses a platform ladder anti-falling device, relates to the technical field of ladders, and aims to solve the problem that structural turnover personnel easily fall down due to structural gravity center shift caused by the climbing and moving process of the existing platform ladder. The upper end of platform ladder mounting panel is provided with the frame, the lower extreme four corners of platform ladder mounting panel all is provided with the fixed bolster, the below of platform ladder mounting panel is provided with the focus adjusting station, the inboard of frame is provided with the reinforcement, one side of reinforcement is provided with elevator motor, one side of frame is provided with triaxial acceleration sensor, both sides all are provided with the adjustment tank around the focus adjusting station.
Description
Technical Field
The utility model relates to the technical field of ladders, in particular to a platform ladder anti-falling device.
Background
In conventional devices, as in application No.: 201020196553.6, respectively; the name is as follows: maize picker platform ladder. The device includes: be fixed with the mounting bracket below maize picker driver's cabin footboard, the mounting bracket below is equipped with to maize picker the place ahead pivoted ladder body, and the upper end of ladder body is equipped with the ladder bedplate, is equipped with the rotation connecting axle between ladder bedplate and the mounting bracket, is equipped with the location poker rod in the outside of ladder bedplate, and the location poker rod meets with the stop gear who establishes in ladder bedplate lower part. The ladder body comprises two side plates and steps arranged between the two side plates, the ladder seat plate is arranged at the tops of the two side plates, and handrails are arranged on the side plates at the rear of the ladder body. The ladder body is arranged to rotate towards the front of the corn harvester and is stored in the front of a front wheel of the corn harvester, and when the ladder is lifted up and down, the ladder body is opened backwards, and the positioning poke rod is operated to position. The structure is compact and beautiful, and the loading and unloading are more convenient. The rotating structure adopts the sliding fit of the shaft and the sleeve, and has low cost, flexible rotation, firmness and durability.
However, in the platform ladder, the center of gravity of the structure is shifted due to the climbing and moving process of workers, so that the problem that the structural turnover workers fall down is easily caused; thus, the existing need is not met, for which we propose a platform ladder fall arrest device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a platform ladder anti-falling device, which solves the problem that the structural tipping personnel fall easily due to the structural gravity center shift caused by the climbing and moving process of the working personnel of the existing platform ladder in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a platform ladder dropproof device, includes the platform ladder mounting panel, the upper end of platform ladder mounting panel is provided with the frame, and frame and platform ladder mounting panel welded connection, the lower extreme four corners of platform ladder mounting panel all is provided with the fixed bolster, and fixed bolster and platform ladder mounting panel welded connection, the below of platform ladder mounting panel is provided with the focus adjusting station, and focus adjusting station and platform ladder mounting panel bolt fixed connection, the upper end of frame is provided with the handrail, and handrail and frame welded connection, the inboard of frame is provided with the reinforcement, and the inboard welded connection of reinforcement and frame, one side of reinforcement is provided with elevator motor, and elevator motor and frame inner wall welded connection, one side of frame is provided with triaxial acceleration sensor, and triaxial acceleration sensor and frame outside bolt fixed connection.
Preferably, both sides all are provided with the adjustment tank around the focus adjustment table, and adjustment tank and focus adjustment table integrated into one piece set up, the inside of focus adjustment table is provided with accommodate motor, and accommodate motor and focus adjustment table inner wall welded connection, accommodate motor's output is provided with adjusting screw, and adjusting screw is connected with the accommodate motor transmission, the last slip control piece that is provided with of adjusting screw, and the slip control piece is connected with the adjusting screw transmission.
Preferably, the front end and the rear end of the sliding adjusting block are respectively provided with an adjusting roller, and the adjusting rollers are connected with the rotating shaft of the sliding adjusting block and are connected with the inner wall of the adjusting groove in a sliding manner.
Preferably, the lower end of the sliding adjusting block is provided with a gravity center adjusting weight, and the gravity center adjusting weight is fixedly connected with the sliding adjusting block through a bolt.
Preferably, the top output of elevator motor is provided with the lifter, and the lifter is connected with the elevator motor transmission, the upper end of lifter is provided with the elevating platform, and elevating platform and lifter welded connection.
Preferably, every one side of fixed bolster all is provided with the hydraulic stem, and hydraulic stem and platform ladder mounting panel welded connection, every the lower extreme of hydraulic stem all is provided with damping spring, and damping spring and hydraulic stem welded connection, every damping spring's lower extreme all is provided with the universal wheel, and universal wheel and damping spring welded connection.
Preferably, the upper end of the frame is provided with a handrail, and the handrail is connected with the frame in a welding manner.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, through the arrangement of the three-axis acceleration sensor, the gravity center adjusting platform, the adjusting groove, the adjusting motor, the adjusting screw rod, the sliding adjusting block, the gravity center adjusting heavy block and the adjusting roller wheel, when an operator climbs up a frame ladder from the inner side of the handrail, the gravity center of the whole device can be changed along with the movement of the user, when the user reaches the top end, the gravity center of the whole device can be shifted, once the whole device vibrates greatly, the risk of toppling can occur, when the device is inclined, the three-axis acceleration sensor can detect the inclination angle of the whole device in real time, and control the adjusting motor in the gravity center adjusting platform to drive the adjusting screw rod to rotate, the position of the sliding adjusting block on the adjusting screw rod is adjusted in real time, the adjusting roller wheel moves in the adjusting groove along the adjusting screw rod, so that the gravity center adjusting heavy block at the lower end of the sliding adjusting block can adjust the gravity center of the whole device in real time according to the shift of the gravity center position of the device, the anti ability of empting of device has greatly been improved, has improved the security that the device used, has solved current platform ladder, because the staff moves the process of climbing and leads to the skew of structure focus, causes the problem that the structure turnover personnel dropped easily.
2. Through the setting of elevator motor, lifter, elevating platform, elevator motor can drive the lifter and drive the elevating platform and carry out the operation of going up and down, has greatly expanded the functional and the use convenience of device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the center of gravity adjusting table according to the present invention;
FIG. 3 is a schematic view of the internal structure of the center of gravity adjusting table of the present invention;
in the figure: 1. a platform ladder mounting plate; 2. a frame; 3. fixing a bracket; 4. a hydraulic lever; 5. a damping spring; 6. a universal wheel; 7. a handrail; 8. a reinforcement; 9. a three-axis acceleration sensor; 10. a lifting motor; 11. a lifting rod; 12. a lifting platform; 13. a center of gravity adjusting table; 14. an adjustment groove; 15. adjusting the motor; 16. adjusting the screw rod; 17. a sliding adjusting block; 18. a gravity center adjusting weight; 19. and adjusting the roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, an embodiment of the present invention is shown: a platform ladder anti-falling device comprises a platform ladder mounting plate 1, a frame 2 is arranged at the upper end of the platform ladder mounting plate 1, the frame 2 is welded with the platform ladder mounting plate 1, four corners of the lower end of the platform ladder mounting plate 1 are provided with fixed brackets 3, the fixed bracket 3 is welded with the platform ladder mounting plate 1, a gravity center adjusting platform 13 is arranged below the platform ladder mounting plate 1, the gravity center adjusting platform 13 is fixedly connected with the platform ladder mounting plate 1 through bolts, the upper end of the frame 2 is provided with a handrail 7, the handrail 7 is welded with the frame 2, the inner side of the frame 2 is provided with a reinforcing member 8, the reinforcing member 8 is welded with the inner side of the frame 2, one side of the reinforcing member 8 is provided with a lifting motor 10, and lifting motor 10 and frame 2 inner wall welded connection, one side of frame 2 is provided with triaxial acceleration sensor 9, and triaxial acceleration sensor 9 and frame 2 outside bolt fixed connection.
Further, both sides all are provided with adjustment tank 14 around the focus regulation platform 13, and adjustment tank 14 sets up with focus regulation platform 13 integrated into one piece, the inside of focus regulation platform 13 is provided with accommodate motor 15, and accommodate motor 15 and 13 inner wall welded connection of focus regulation platform, the output of accommodate motor 15 is provided with adjusting screw 16, and adjusting screw 16 is connected with adjusting motor 15 transmission, be provided with slip regulating block 17 on adjusting screw 16, and slip regulating block 17 is connected with adjusting screw 16 transmission, the inside accommodate motor 15 drive adjusting screw 16 of focus regulation platform 13 is rotatory, adjust the position of slip regulating block 17 on adjusting screw 16 in real time.
Further, both ends all are provided with adjusting roller 19 around the slip regulating block 17, and adjusting roller 19 is connected with slip regulating block 17 pivot, with adjustment tank 14 inner wall sliding connection, adjusting roller 19 improves slip regulating block 17 translation rate, greatly improves the speed of focus regulation, reduces the device reaction delay, improves the security.
Further, the lower end of the sliding adjusting block 17 is provided with a gravity center adjusting weight 18, the gravity center adjusting weight 18 is fixedly connected with the sliding adjusting block 17 through a bolt, and the gravity center adjusting weight 18 effectively adjusts the overall gravity center position of the device along the movement direction of the adjusting screw 16 to prevent toppling.
Further, the top output of elevator motor 10 is provided with lifter 11, and lifter 11 is connected with elevator motor 10 transmission, and the upper end of lifter 11 is provided with elevating platform 12, and elevating platform 12 and 11 welded connection of lifter, and elevator motor 10 can drive lifter 11 and drive elevating platform 12 and carry out the operation of going up and down, has greatly expanded the functionality and the use convenience of device.
Further, one side of every fixed bolster 3 all is provided with hydraulic stem 4, and hydraulic stem 4 and 1 welded connection of platform ladder mounting panel, the lower extreme of every hydraulic stem 4 all is provided with damping spring 5, and damping spring 5 and 4 welded connection of hydraulic stem, the lower extreme of every damping spring 5 all is provided with universal wheel 6, and universal wheel 6 and 5 welded connection of damping spring, universal wheel 6 has greatly improved the removal convenience of device, and when hydraulic stem 4 shortened, can break away from ground with 6 lifting of universal wheel, make 3 direct contact ground of fixed bolster fixed, the installation fixed stability and the safety in utilization of device have greatly been improved.
Further, the upper end of the frame 2 is provided with the handrail 7, and the handrail 7 is connected with the frame 2 in a welding manner, so that the handrail 7 greatly improves the safety of a user during use and prevents rollover and falling.
The working principle is as follows: when the device is used, when an operator climbs the ladder of the frame 2 from the inner side of the handrail 7, the gravity center of the whole device can be changed along with the movement of the user, when the user reaches the top end, the gravity center of the whole device can be deviated, once the whole device vibrates greatly, the risk of toppling can occur, when the device is inclined, the three-axis acceleration sensor 9 can detect the inclination angle of the whole device in real time, control the adjusting motor 15 in the gravity center adjusting table 13 to drive the adjusting screw rod 16 to rotate, adjust the position of the sliding adjusting block 17 on the adjusting screw rod 16 in real time, the adjusting roller 19 moves in the adjusting groove 14 along the adjusting screw rod 16, so that the gravity center adjusting weight 18 at the lower end of the sliding adjusting block 17 can adjust the whole gravity center of the device in real time according to the deviation of the gravity center position, the anti-toppling capability of the device is greatly improved, and the use safety of the device is improved, the problem of current platform ladder, because the staff moves the removal process and leads to structure focus skew, cause structure turnover personnel to fall easily is solved, elevator motor 10 can drive lifter 11 and drive elevating platform 12 and go up and down the operation, has greatly expanded the functional and the use convenience of device.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a platform ladder anti-falling device, includes platform ladder mounting panel (1), its characterized in that: the upper end of the platform ladder mounting plate (1) is provided with a frame (2), the frame (2) is welded with the platform ladder mounting plate (1), four corners of the lower end of the platform ladder mounting plate (1) are provided with fixed brackets (3), the fixed bracket (3) is welded with the platform ladder mounting plate (1), a gravity center adjusting platform (13) is arranged below the platform ladder mounting plate (1), the gravity center adjusting platform (13) is fixedly connected with the platform ladder mounting plate (1) through bolts, the inner side of the frame (2) is provided with a reinforcing piece (8), and the reinforcing member (8) is welded with the inner side of the frame (2), one side of the reinforcing member (8) is provided with a lifting motor (10), and the lifting motor (10) is welded with the inner wall of the frame (2), one side of the frame (2) is provided with a three-axis acceleration sensor (9), and the triaxial acceleration sensor (9) is fixedly connected with the outer side of the frame (2) through bolts.
2. A platform ladder fall arrest device according to claim 1, characterised in that: both sides all are provided with adjustment tank (14) around focus adjustment table (13), and adjustment tank (14) set up with focus adjustment table (13) integrated into one piece, the inside of focus adjustment table (13) is provided with accommodate motor (15), and accommodate motor (15) and focus adjustment table (13) inner wall welded connection, the output of accommodate motor (15) is provided with adjusting screw (16), and adjusting screw (16) are connected with accommodate motor (15) transmission, be provided with slide adjusting block (17) on adjusting screw (16), and slide adjusting block (17) are connected with adjusting screw (16) transmission.
3. A platform ladder fall arrest device according to claim 2, characterised in that: the front end and the rear end of the sliding adjusting block (17) are respectively provided with an adjusting roller (19), and the adjusting rollers (19) are connected with the rotating shaft of the sliding adjusting block (17) and are connected with the inner wall of the adjusting groove (14) in a sliding manner.
4. A platform ladder fall arrest device according to claim 2, characterised in that: the lower end of the sliding adjusting block (17) is provided with a gravity center adjusting weight (18), and the gravity center adjusting weight (18) is fixedly connected with the sliding adjusting block (17) through a bolt.
5. A platform ladder fall arrest device according to claim 1, characterised in that: the lifting mechanism is characterized in that a lifting rod (11) is arranged at the output end of the upper part of the lifting motor (10), the lifting rod (11) is in transmission connection with the lifting motor (10), a lifting table (12) is arranged at the upper end of the lifting rod (11), and the lifting table (12) is in welding connection with the lifting rod (11).
6. A platform ladder fall arrest device according to claim 1, characterised in that: every one side of fixed bolster (3) all is provided with hydraulic stem (4), and hydraulic stem (4) and platform ladder mounting panel (1) welded connection, every the lower extreme of hydraulic stem (4) all is provided with damping spring (5), and damping spring (5) and hydraulic stem (4) welded connection, every the lower extreme of damping spring (5) all is provided with universal wheel (6), and universal wheel (6) and damping spring (5) welded connection.
7. A platform ladder fall arrest device according to claim 1, characterised in that: the upper end of the frame (2) is provided with a handrail (7), and the handrail (7) is connected with the frame (2) in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121805700.XU CN215859941U (en) | 2021-08-04 | 2021-08-04 | Anti-falling device for platform ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121805700.XU CN215859941U (en) | 2021-08-04 | 2021-08-04 | Anti-falling device for platform ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215859941U true CN215859941U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121805700.XU Active CN215859941U (en) | 2021-08-04 | 2021-08-04 | Anti-falling device for platform ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215859941U (en) |
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2021
- 2021-08-04 CN CN202121805700.XU patent/CN215859941U/en active Active
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